Patent Description:
Heating cooking apparatuses are known. A heating cooking apparatus includes a heating cooking chamber and a pull-out body. The heating cooking chamber includes an accommodation space. The pull-out body is integrated with an opening/closing door. The opening/closing door can close the accommodation space. The pull-out body is disposed to be able to be pulled out relative to the heating cooking chamber. Such a heating cooking apparatus as described above is built into a cabinet of a built-in kitchen.

PTL <NUM> discloses a heating cooking apparatus. Heating functions of the heating cooking apparatus disclosed in PTL <NUM> include a microwave heating function and a high-speed hot air heating function. The microwave heating function is a function of irradiating an object to be heated with microwaves. The high-speed hot air heating function is a function of blowing out hot air toward an object to be heated at high speed.

<CIT> discloses a drawer type microwave oven having a turntable functioning as a uniform heating mechanism with a visual effect, while maintaining the ceiling height of a heating chamber and having improved usability. A turntable drive mechanism utilizing a thin deceleration mechanism and a pivot mechanism is disposed in a space formed between a bottom wall of the drawer body and a bottom wall of the heating chamber, and a power transmission mechanism is engaged in a detachable manner in conjunction with the movement of the drawer body together with the door. Thus, a drawer type microwave oven capable of performing uniform heating by pivot rotation while maintaining the ceiling height of the heating chamber is realized.

<CIT> discloses a heating cooker that can be easily manufactured and has a glass portion enabling reduction in an increase in a surface temperature and arranged in a grill door, and a method of manufacturing the grill door. A glass portion of a grill door includes: three glass plates that are laminated to form a pyramid shape leaving gaps in the thickness direction; spacers disposed to be sandwiched between the glass plates; and seal portions arranged at steps formed between outer peripheries of the respective three glass plates. Since the length in the thickness direction of the glass portion can be made longer, an increase in the surface temperature of the glass portion can be reduced. In an assembling process of the glass portion, the glass plates are laminated so that their areas are made narrower sequentially from the lower side to the upper side. The step is formed between the outer peripheries of the two glass plates adjacent to each other. An operator can apply an adhesive to each step from the upper side. Therefore, transition from a laminating process to a bonding process can be made without changing the orientation of the laminated glass plates.

<CIT> discloses a door system for closing a feeding opening of a cooking cavity of a cooking oven with a door which is movable using a pull out system from the feeding opening away and/or to the feeding opening and which is, in addition, relatively movable to the pull out system, where a control unit is attached or arranged in and /or at the door with which the door at least essentially in a pull out position and/or during the pull out position can be brought alternatively in a state which is relatively fixed with respect to the pull out system or into a state which is relatively movable with respect to the pull out system.

Unfortunately, in the heating cooking apparatus disclosed in PTL <NUM>, in a case where the high-speed hot air heating function is used, the temperature of the surface (the temperature of the outer surface) of an opening/closing door (lid portion) may rise with a rise in the temperature inside the heating cooking chamber.

In light of the above problem, an object of the present invention is to provide a heating cooking apparatus that can reduce a rise in the temperature of an outer surface of a lid portion.

According to the present invention, there is provided a heating cooking apparatus comprising: a heating cooking chamber including an accommodation space where an object to be heated is accommodated and an opening communicating with the accommodation space; a lid portion configured to close the opening; a heat supply unit configured to supply heat into the accommodation space; a pull-out body that is pulled out freely relative to the accommodation space; a housing configured to accommodate the heating cooking chamber; a fan disposed in a first space formed between the heating cooking chamber and the housing; and a pair of slide rails slidably support the pull-out body, wherein the pull-out body includes the lid portion, the lid portion includes a see-through window portion configured to make the accommodation space visible, the see-through window portion includes three glass plates, the three glass plates include a heat-ray reflecting glass configured to reflect heat rays, a first glass plate located proximate to the accommodation space, and a second glass plate located opposite to the accommodation space, the heat-ray reflecting glass is located between the first glass plate and the second glass plate, and the first glass plate, the heat-ray reflecting glass, the second glass plate are arranged side by side in a line at intervals along a pull-out direction of the pull-out body, and a first air deflecting plate and a second air deflecting plate are disposed in the first space, the first air deflecting plate guiding part of blown air flow blown out by the fan to a first slide rail of the pair of slide rails, the second air deflection plate guiding part of blown air flow to a second slide rail of the pair of slide rails.

According to a heating cooking apparatus of the present invention, it is possible to reduce a rise in the temperature of an outer surface of a lid portion. Furthermore, the cooling fan enables cooling of the first and second slide rails.

An embodiment of a heating cooking apparatus according to the present invention will be described below with reference to the drawings. Note that, in the drawings, the same or equivalent components are denoted by the same reference numerals and signs, and description thereof will not be repeated.

With reference to <FIG>, a heating cooking apparatus <NUM> according to the present embodiment will be described. <FIG> are perspective views of the heating cooking apparatus <NUM> according to the present embodiment. More specifically, <FIG> illustrates the heating cooking apparatus <NUM> in an upper right diagonal direction from the front. <FIG> illustrates the heating cooking apparatus <NUM> in a lower right diagonal direction from behind.

The heating cooking apparatus <NUM> is used to heat and cook an object to be heated. The object to be heated is, for example, food. As illustrated in <FIG>, the heating cooking apparatus <NUM> includes a heating cooking chamber <NUM>, an operation panel unit <NUM>, a pull-out body <NUM>, and a housing <NUM>.

In the present embodiment, a side on which the operation panel unit <NUM> of the heating cooking apparatus <NUM> is disposed is defined as a front side, and a side opposite thereto is defined as a rear side. Further, a right side as viewed from the front side of the heating cooking apparatus <NUM> is defined as a right side, and a side opposite thereto is defined as a left side. Further, a side on which the operation panel unit <NUM> is disposed in a direction orthogonal to a front-rear direction and a left-right direction of the heating cooking apparatus <NUM> is defined as an upper side, and a side opposite thereto is defined as a lower side. Note that these directions are not intended to limit the directions of the heating cooking apparatus according to the present invention when the heating cooking apparatus is used.

The heating cooking chamber <NUM> has a box shape. The heating cooking chamber <NUM> internally includes an accommodation space 1A. The accommodation space 1A accommodates an object to be heated.

In the present embodiment, the heating cooking apparatus <NUM> includes, as heating cooking modes, a microwave heating mode, a first hot air circulation heating mode, a second hot air circulation heating mode, and a grill heating mode. The microwave heating mode is mainly a mode in which an object to be heated is heated and cooked through radiation of microwaves into the accommodation space 1A. The first hot air circulation heating mode is mainly a mode in which an object to be heated is heated and cooked by circulating first hot air H1 in the accommodation space 1A. The second hot air circulation heating mode mainly includes a first mode and a second mode. The first mode is a mode in which an object to be heated is heated and cooked by directly blowing second hot air H2 onto an upper surface of the object to be heated. The second mode is a mode in which the accommodation space 1A is preheated in a short time by circulating the second hot air H2 in the accommodation space 1A. The grill heating mode is mainly a mode in which an object to be heated is heated and cooked by exposing the object to be heated to heat radiation.

The heating cooking chamber <NUM> includes a panel <NUM>. The panel <NUM> is disposed on the front side of the heating cooking chamber <NUM>. The panel <NUM> includes an opening 11A. The opening 11A is located at a substantially center portion of the panel <NUM>. The opening 11A has a rectangular shape. The opening 11A communicates with the accommodation space 1A. Details of the panel <NUM> will be described below with reference to <FIG>.

The operation panel unit <NUM> receives operation from a user. The operation panel unit <NUM> is disposed further forward than the panel <NUM>. In other words, the operation panel unit <NUM> is disposed in front of the heating cooking chamber <NUM>. The operation panel unit <NUM> is located at an upper portion of the heating cooking apparatus <NUM>.

The pull-out body <NUM> can be pulled out freely relative to the accommodation space 1A in a pull-out direction. More specifically, the pull-out body <NUM> is pulled out in the front direction of the heating cooking chamber <NUM>. The pull-out body <NUM> is located below the operation panel unit <NUM>. Details of the configuration of the pull-out body <NUM> will be described below with reference to <FIG> and <FIG>. The pull-out direction is substantially parallel to a front-rear direction.

The housing <NUM> accommodates the heating cooking chamber <NUM>. The housing <NUM> is an object having a rectangular parallelepiped shape with an open front side. As illustrated in <FIG>, the housing <NUM> includes a right wall 14A, a left wall 14B, an upper wall 14C, a lower wall 14D, and a rear wall 14E.

Next, the pull-out body <NUM> will be further described with reference to <FIG>. <FIG> is a diagram illustrating a right side surface of the heating cooking apparatus <NUM> according to the present embodiment. More specifically, <FIG> illustrates the right side surface of the heating cooking apparatus <NUM> in a state where the housing <NUM> is removed. <FIG> is a diagram illustrating a left side surface of the heating cooking apparatus <NUM> according to the present embodiment. More specifically, <FIG> illustrates the left side surface of the heating cooking apparatus <NUM> in a state where the housing <NUM> is removed. <FIG> is a front view of the heating cooking apparatus <NUM> according to the present embodiment.

As illustrated in <FIG> and <FIG>, the pull-out body <NUM> includes a lid portion <NUM>, a placing portion <NUM>, a pair of left and right slide members <NUM>, and a support member <NUM>.

The lid portion <NUM> is configured to close the opening 11A (see <FIG>) of the panel <NUM>. As illustrated in <FIG>, the lid portion <NUM> is a plate-like member having a substantially rectangular shape. The lid portion <NUM> includes a see-through window portion <NUM>. The see-through window portion <NUM> is located at a substantially center portion of the lid portion <NUM> in the left-right direction and the up-down direction. The see-through window portion <NUM> makes the accommodation space 1A (see <FIG>) in the heating cooking chamber <NUM> visible. A configuration of the see-through window portion <NUM> will be described below with reference to <FIG>. Details of a configuration of the lid portion <NUM> will be described with reference to <FIG>.

As illustrated in <FIG> and <FIG>, an object to be heated can be placed on the placing portion <NUM>. The lid portion <NUM> includes a rear surface 20A. The rear surface 20A of the lid portion <NUM> faces the opening 11A (see <FIG>) of the panel <NUM>. The placing portion <NUM> is attached to the rear surface 20A of the lid portion <NUM>.

The pair of left and right slide members <NUM> support the lid portion <NUM>. The pair of left and right slide members <NUM> support the placing portion <NUM> by supporting the lid portion <NUM>. The pair of left and right slide members <NUM> are attached to the rear surface 20A of the lid portion <NUM>. The pair of left and right slide members <NUM> include a right slide member 132a (see <FIG>) and a left slide member 132b (see <FIG>). Each of the right slide member 132a (see <FIG>) and the left slide member 132b (see <FIG>) has the front-rear direction as a longitudinal direction.

The support member <NUM> supports the lid portion <NUM>. The support member <NUM> supports the placing portion <NUM> by supporting the lid portion <NUM>. The support member <NUM> is attached to a substantially center portion of the rear surface 20A of the lid portion <NUM> in the left-right direction and a portion below the placing portion <NUM>. The support member <NUM> is a plate-like member with the front-rear direction as a longitudinal direction.

The support member <NUM> includes a rack portion. The rack portion includes a plurality of teeth. The heating cooking apparatus <NUM> includes a drive mechanism <NUM> to be described below with reference to <FIG>. The drive mechanism <NUM> is accommodated in an air intake space AR to be described below with reference to <FIG>. The drive mechanism <NUM> causes the pull-out body <NUM> to be in an opened state or a closed state by engaging with the rack portion of the support member <NUM>. The opened state of the pull-out body <NUM> is a state where the placing portion <NUM> of the pull-out body <NUM> is pulled out from the accommodation space 1A. The closed state of the pull-out body <NUM> is a state where the placing portion <NUM> of the pull-out body <NUM> is pulled into the accommodation space 1A.

Next, the panel <NUM> will be further described with reference to <FIG>. <FIG> is a front view of the heating cooking apparatus <NUM> according to the present embodiment. More specifically, <FIG> illustrates the heating cooking apparatus <NUM> in a state where the pull-out body <NUM> is removed.

As illustrated in <FIG>, the panel <NUM> is a rectangular plate-like member. The panel <NUM> includes a plurality of first through hole portions 11B, a plurality of second through hole portions 11C, a pair of third through hole portions 11D, a fourth through hole portion 11E, and a pair of fifth through hole portions 11F, in addition to the opening 11A. Hereinafter, the plurality of second through hole portions 11C will be collectively referred to as an "exhaust hole portion 11C".

The plurality of first through hole portions 11B are located at a portion below the opening 11A of the panel <NUM>. The plurality of first through hole portions 11B form four columns. In the present embodiment, each of the four columns is composed of six or seven first through hole portions 11B disposed in a row along an up-down direction. Two columns of the four columns are located at a portion proximate to a right end of the panel <NUM>. The other two columns of the four columns are located at a portion proximate to a left end of the panel <NUM>. Hereinafter, the seven first through hole portions 11B constituting each column except for the leftmost column among the four columns may be collectively referred to as an "air intake hole portion 11BA". Hereinafter, the six first through hole portions 11B constituting the leftmost column among the four columns may be collectively referred to as an "exhaust hole portion 11BB". The air intake hole portions 11BA communicate a space R to be described below with reference to <FIG> and <FIG> and the outside of the heating cooking apparatus <NUM> with each other. The air intake hole portions 11BA are located upstream relative to a blown air flow BF that is blown out by a cooling fan <NUM> to be described below with reference to <FIG>.

The exhaust hole portion 11C communicates the space R to be described below with reference to <FIG> and <FIG> and the outside of the heating cooking apparatus <NUM> with each other. The exhaust hole portion 11C is located downstream relative to the blown air flow BF that is blown out by the cooling fan <NUM> to be described below with reference to <FIG>. Further, the exhaust hole portion 11C is located on the panel <NUM> at a portion above the opening 11A. The plurality of second through hole portions 11C are disposed in a row from a right portion to a left portion of the panel <NUM>. Further, as illustrated in <FIG>, the exhaust hole portion 11C is located between the pull-out body <NUM> (see <FIG>) and the operation panel unit <NUM> in the up-down direction.

As illustrated in <FIG>, the pair of third through hole portions 11D include a right third through hole portion 11Da and a left third through hole portion 11Db. The right third through hole portion 11Da is located on the panel <NUM> at a portion to the right of the opening 11A. The left third through hole portion 11Db is located on the panel <NUM> at a portion to the left of the opening 11A. The right slide member 132a described with reference to <FIG> and <FIG> passes through the right third through hole portion 11Da of the panel <NUM>. The left slide member 132b described with reference to <FIG> and <FIG> passes through the left third through hole portion 11Db of the panel <NUM>.

The fourth through hole portion 11E is located on the panel <NUM> at a portion below the opening 11A of the panel <NUM> and at a substantially center portion of the panel <NUM> in the left-right direction. The support member <NUM> described with reference to <FIG> and <FIG> passes through the fourth through hole portion 11E of the panel <NUM>.

The pair of fifth through hole portions 11F include a right fifth through hole portion 11Fa and a left fifth through hole portion 11Fb. The right fifth through hole portion 11Fa faces the right air supply hole portion 23Aa, which will be described below with reference to <FIG>, in the closed state of the pull-out body <NUM>. More specifically, the right fifth through hole portion 11Fa is located on the panel <NUM> at a portion to the right of the opening 11A and at a portion above the right third through hole portion 11Da. The left fifth through hole portion 11Fb faces the left air supply hole portion 23Ab, which will be described below with reference to <FIG>, in the closed state of the pull-out body <NUM>. More specifically the left fifth through hole portion 11Fb is located on the panel <NUM> at a portion to the left of the opening 11A and at a portion above the left third through hole portion 11Db. The closed state of the pull-out body <NUM> includes a state where the lid portion <NUM> described with reference to <FIG> and <FIG> closes the opening 11A.

Next, a configuration of the heating cooking apparatus <NUM> will be further described with reference to <FIG>.

As illustrated in <FIG> and <FIG>, the heating cooking apparatus <NUM> further includes a pair of left and right connecting portions <NUM> and a pair of left and right slide rails <NUM>.

The pair of left and right connecting portions <NUM> connect the pair of left and right slide rails <NUM> and the heating cooking chamber <NUM>. The pair of left and right connecting portions <NUM> include a right connecting portion 15a (see <FIG>) and a left connecting portion 15b (see <FIG>). As illustrated in <FIG>, the heating cooking chamber <NUM> includes a right wall 10A. The right connecting portion 15a is attached to the right wall 10A of the heating cooking chamber <NUM>. As illustrated in <FIG>, the heating cooking chamber <NUM> includes a left wall 10B. The left connecting portion 15b is attached to the left wall 10B of the heating cooking chamber <NUM>. Configurations of the right connecting portion 15a and the left connecting portion 15b are substantially the same.

The pair of left and right slide rails <NUM> slidably support the pull-out body <NUM> in the front-rear direction. As illustrated in <FIG> and <FIG>, the pair of left and right slide rails <NUM> include a right slide rail 16a (see <FIG>) and a left slide rail 16b (see <FIG>).

The right slide rail 16a and the left slide rail 16b are attached to an outer surface of the heating cooking chamber <NUM>. More specifically, as illustrated in <FIG>, the right slide rail 16a is attached to the right connecting portion 15a. As illustrated in <FIG>, the left slide rail 16b is attached to the left connecting portion 15b. Each of the right slide rail 16a and the left slide rail 16b includes a rail portion with the front-rear direction as a longitudinal direction. The rail portion of the right slide rail 16a engages with the right slide member 132a. The right slide member 132a is slidably supported by the right slide rail 16a. The rail portion of the left slide rail 16b engages with the left slide member 132b. The left slide member 132b is slidably supported by the left slide rail 16b. Configurations of the right slide rail 16a and the left slide rail 16b are substantially the same.

Next, the configuration of the heating cooking apparatus <NUM> according to the present embodiment will be further described with reference to <FIG>. <FIG> is a cross-sectional view of the heating cooking apparatus <NUM> along a section line VII in <FIG>. <FIG> is a cross-sectional view of the heating cooking apparatus <NUM> along a section line VIII in <FIG>.

As illustrated in <FIG>, the heating cooking chamber <NUM> includes an upper wall 10C, a lower wall 10D, and a rear wall 10E, in addition to the right wall 10A and the left wall 10B. The accommodation space 1A is formed by the right wall 10A, the left wall 10B, the upper wall 10C, the lower wall 10D, and the rear wall 10E. The accommodation space 1A of the heating cooking chamber <NUM> has a substantially rectangular parallelepiped shape.

The heating cooking apparatus <NUM> further includes a first air sending unit <NUM>, a second air sending unit <NUM>, a microwave supply unit <NUM>, a grill unit <NUM> (see <FIG>), and a damper unit <NUM> (see <FIG>). The heating cooking apparatus <NUM> includes a space R. The space R is formed between an outer surface S10 of the heating cooking chamber <NUM> and an inner surface S <NUM> of the housing <NUM>. The first air sending unit <NUM>, the second air sending unit <NUM>, and the grill unit <NUM> are examples of heat supply units. The space R is an example of a first space.

The first air sending unit <NUM> supplies first hot air H1 into the accommodation space 1A. In other words, the first air sending unit <NUM> executes a first hot air circulation heating mode. The first air sending unit <NUM> is attached to the outer side of the rear wall 10E. The rear wall 10E includes a plurality of first blow-out hole portions 10E1 and a plurality of first intake hole portions 10E2. The plurality of first intake hole portions 10E2 are located at a substantially center portion of the rear wall 10E. The plurality of first blow-out hole portions 10E1 are located on the rear wall 10E at an outer portion of the plurality of first intake hole portions 10E2 in the rear wall 10E.

The first air sending unit <NUM> includes a first air sending chamber <NUM>, a first heater <NUM>, a first centrifugal fan <NUM>, a first drive unit <NUM>, and a first energization unit <NUM>. The first heater <NUM> and the first centrifugal fan <NUM> are accommodated in the first air sending chamber <NUM>. The first drive unit <NUM> and the first energization unit <NUM> are located outside the first air sending chamber <NUM>.

The first energization unit <NUM> energizes the first heater <NUM>. The energized first heater <NUM> heats air in the first air sending chamber <NUM>. The first drive unit <NUM> drives the first centrifugal fan <NUM>. The driven first centrifugal fan <NUM> blows air in the first air sending chamber <NUM> into the accommodation space 1A through the plurality of first blow-out hole portions 10E1. Further, the driven first centrifugal fan <NUM> draws air in the accommodation space 1A into the first air sending chamber <NUM> through the plurality of first intake hole portions 10E2. The plurality of first intake hole portions 10E2 face the first centrifugal fan <NUM> in an axial direction of the first centrifugal fan <NUM>. The first heater <NUM> is, for example, a sheathed heater. The first drive unit <NUM> is, for example, a motor.

The second air sending unit <NUM> supplies second hot air H2 into the accommodation space 1A. In other words, the second air sending unit <NUM> executes the second hot air circulation heating mode. The second air sending unit <NUM> is attached to the outer side of the upper wall 10C. The upper wall 10C includes a plurality of second blow-out hole portions 10C1 and a plurality of second intake hole portions 10C2. The plurality of second blow-out hole portions 10C1 and the plurality of second intake hole portions 10C2 are located at a substantially center portion of the upper wall 10C.

The second air sending unit <NUM> includes a second air sending chamber <NUM>, a second heater <NUM>, a second centrifugal fan <NUM>, a second drive unit <NUM>, and a second energization unit <NUM>. The second heater <NUM> and the second centrifugal fan <NUM> are accommodated in the second air sending chamber <NUM>. The second drive unit <NUM> and the second energization unit <NUM> are located outside the second air sending chamber <NUM>.

The second energization unit <NUM> energizes the second heater <NUM>. The energized second heater <NUM> heats air in the second air sending chamber <NUM>. The second drive unit <NUM> drives the second centrifugal fan <NUM>. The driven second centrifugal fan <NUM> blows air in the second air sending chamber <NUM> into the accommodation space 1A through the plurality of second blow-out hole portions 10C1. Further, the driven second centrifugal fan <NUM> draws air in the accommodation space 1A into the second air sending chamber <NUM> through the plurality of second intake hole portions 10C2. The plurality of second intake hole portions 10C2 face the second centrifugal fan <NUM> in an axial direction of the second centrifugal fan <NUM>. The second heater <NUM> is, for example, a sheathed heater. The second drive unit <NUM> is, for example, a motor.

The microwave supply unit <NUM> supplies microwaves into the accommodation space 1A. In other words, the microwave supply unit <NUM> executes the microwave heating mode. The microwave supply unit <NUM> is attached to the lower wall 10D.

As illustrated in <FIG>, the microwave supply unit <NUM> includes a magnetron <NUM>, a rotary antenna <NUM>, a waveguide <NUM>, and an antenna motor <NUM>. The lower wall 10D includes a recessed portion 10D1. The recessed portion 10D1 is located at a substantially center portion of the lower wall 10D. The heating cooking chamber <NUM> includes an oven tray <NUM>. The oven tray <NUM> is attached to the lower wall 10D. The oven tray <NUM> is a plate-like member. The oven tray <NUM> covers the recessed portion 10D1. The oven tray <NUM> and the recessed portion 10D1 form a space 10D2 therebetween.

The rotary antenna <NUM> is located in the space 10D2. The magnetron <NUM>, the waveguide <NUM>, and the antenna motor <NUM> are located outside the recessed portion 10D1. The magnetron <NUM> generates microwaves. The recessed portion 10D1 includes a power supply hole portion 10D3. The waveguide <NUM> propagates the generated microwaves to the power supply hole portion 10D3. As a result, the microwaves are supplied into the accommodation space 1A via the rotary antenna <NUM>. The antenna motor <NUM> drives the rotary antenna <NUM>. The rotary antenna <NUM> agitates the microwaves and radiates the microwaves into the accommodation space 1A.

The material of the oven tray <NUM> includes ceramic or glass. Because the material of the oven tray <NUM> includes ceramic or glass, the oven tray <NUM> facilitates transmission of the microwaves. Therefore, when the microwave heating mode is executed, the microwaves are supplied from the recessed portion 10D <NUM>, and the heating cooking apparatus <NUM> can efficiently heat and cook an object to be heated.

The grill unit <NUM> mainly supplies heat radiation into the accommodation space 1A. The grill unit <NUM> executes the grill heating mode. The grill unit <NUM> includes a heating cooking heater unit <NUM> and a third energization unit <NUM>. The heating cooking heater unit <NUM> is located at an upper portion in the accommodation space 1A. The heating cooking heater unit <NUM> projects from the inner surface of the left wall 10B of the heating cooking chamber <NUM>. The third energization unit <NUM> is located outside the left wall 10B. The third energization unit <NUM> projects from the outer surface of the left wall 10B of the heating cooking chamber <NUM>. The third energization unit <NUM> energizes the heating cooking heater unit <NUM>. The energized heating cooking heater unit <NUM> generates and radiates heat. The heating cooking heater unit <NUM> is, for example, a U-shaped sheathed heater.

As illustrated in <FIG>, in the present embodiment, the heating cooking heater unit <NUM> of the grill unit <NUM> is located at a substantially center portion in the front-rear direction. Accordingly, the heating cooking heater unit <NUM> of the grill unit <NUM> is easily to be located directly above the object to be heated. As a result, the heating cooking apparatus <NUM> can heat the object to be heated more uniformly when the grill unit <NUM> is driven.

As illustrated in <FIG>, the right wall 10A includes a plurality of air supply hole portions 10A1. The plurality of air supply hole portions 10A1 pass through the right wall 10A. The left wall 10B includes a plurality of exhaust hole portions 10B <NUM>. The plurality of exhaust hole portions 10B1 pass through the left wall 10B.

The damper unit <NUM> opens or closes the plurality of air supply hole portions 10A1 and the plurality of exhaust hole portions 10B1. For example, when the damper unit <NUM> opens the plurality of air supply hole portions 10A1 and the plurality of exhaust hole portions 10B1, the accommodation space 1A communicates with the space R. When the damper unit <NUM> closes the plurality of air supply hole portions 10A1 and the plurality of exhaust hole portions 10B1, the accommodation space 1A does not communicate with the space R. The damper unit <NUM> includes an air supply damper 35a and an exhaust damper 35b.

The air supply damper 35a opens or closes the plurality of air supply hole portions 10A1. The air supply damper 35a is attached to the outer side of the right wall 10A.

The exhaust damper 35b opens or closes the plurality of exhaust hole portions 10B1. The exhaust damper 35b is attached to the outer side of the left wall 10B. As illustrated in <FIG>, the exhaust damper 35b includes a humidity sensor 35b1. The humidity sensor 35b1 detects the amount of vapor included in the air discharged from the accommodation space 1A (see <FIG>) through the plurality of exhaust hole portions 10B1 when the plurality of exhaust hole portions 10B1 (see <FIG>) are opened. Accordingly, when the microwave heating mode is executed, the heating cooking apparatus <NUM> can detect a finish of the object to be heated that has been heated and cooked based on the amount of vapor detected by the humidity sensor 35b1. The exhaust damper 35b guides the air discharged from the accommodation space 1A (see <FIG>) through the plurality of exhaust hole portions 10B1 (see <FIG>) to the exhaust hole portion 11BB (see <FIG>) without bringing the air into contact with the air in the space R (see <FIG>).

The temperature of the outer surface of the heating cooking chamber <NUM> tends to become high as the temperature in the accommodation space 1A rises due to the drive of the first air sending unit <NUM>, the second air sending unit <NUM>, or the grill unit <NUM>. The pair of left and right connecting portions <NUM>, the pair of left and right slide rails <NUM>, and the pair of left and right slide members <NUM> are made of a metal. The heat from the outer surface of the heating cooking chamber <NUM> is easily to be heat-transferred to the pair of left and right connecting portions <NUM>, the pair of left and right slide rails <NUM>, and the pair of left and right slide members <NUM>. For this reason, the temperature of the pair of left and right connecting portions <NUM>, the pair of left and right slide rails <NUM>, and the pair of left and right slide members <NUM> become high as the temperature in the accommodation space 1A rises.

Next, the configuration of the heating cooking apparatus <NUM> will be further described with reference to <FIG>. <FIG> is a perspective view of the heating cooking apparatus <NUM> according to the present embodiment. More specifically, <FIG> illustrates the heating cooking apparatus <NUM> in a state where the housing <NUM> is removed, in an upper right diagonal direction from behind. <FIG> is a perspective view of the heating cooking apparatus <NUM> according to the present embodiment. More specifically, <FIG> illustrates the heating cooking apparatus <NUM> in a state where the housing <NUM> is removed, in an upper left diagonal direction from behind.

As illustrated in <FIG>, the heating cooking apparatus <NUM> further includes a cooling fan <NUM>, a partition plate <NUM>, a plurality of air deflecting plates <NUM>, and a magnetron fan <NUM>. The cooling fan <NUM>, the partition plate <NUM>, the plurality of air deflecting plates <NUM>, and the magnetron fan <NUM> are located in the space R (see <FIG>). The cooling fan <NUM> is an example of a fan.

The cooling fan <NUM> mainly cools components to be cooled that are disposed around the outer surface of the heating cooking chamber <NUM> (see <FIG>). The components to be cooled include the pair of left and right slide members <NUM>, the pair of left and right slide rails <NUM>, the lid portion <NUM>, the first air sending unit <NUM>, the second air sending unit <NUM>, and the grill unit <NUM>. More specifically, the cooling fan <NUM> takes air outside of the heating cooking apparatus <NUM> into the space R (see <FIG>) and discharges air in the space R (see <FIG>) to the outside of the heating cooking apparatus <NUM>. As illustrated in <FIG>, the cooling fan <NUM> is located at a lower and rear portion of the space R (see <FIG>). The cooling fan <NUM> is located at the same height as the height of the air intake hole portion 11BA (see <FIG>) of the panel <NUM>. The cooling fan <NUM> blows out air in an upward direction to generate a blown air flow BF. In the present embodiment, the cooling fan <NUM> is a cross-flow fan.

As illustrated in <FIG>, the partition plate <NUM> partitions the space R into an air intake space AR and an exhaust space BR. The air intake space AR is located below the partition plate <NUM> in the space R in the up-down direction. The exhaust space BR is located above the partition plate <NUM> in the space R in the up-down direction. In the air intake space AR, an intake air flow AF generated by the drive of the cooling fan <NUM> flows. The intake air flow AF indicates a flow of air that flows from the outside of the heating cooking apparatus <NUM> toward the cooling fan <NUM> through the plurality of air intake hole portions 11BA (see <FIG>). In the exhaust space BR, the blown air flow BF generated by the drive of the cooling fan <NUM> flows. As illustrated in <FIG>, the partition plate <NUM> includes two blow-out hole portions 41b1. The blown air flow BF is blown upward from the cooling fan <NUM> through two blow-out hole portions 41b1 of the partition plate <NUM>. The blown air flow BF mainly indicates a flow of air toward the exhaust hole portion 11C (see <FIG>).

As illustrated in <FIG> and <FIG>, the partition plate <NUM> is located at a portion above the cooling fan <NUM> in the space R and a portion below the pair of left and right slide rails <NUM>. The partition plate <NUM> is attached to the outer surface of the heating cooking chamber <NUM> across a front end portion of the right wall 10A of the heating cooking chamber <NUM> to a front end portion of the left wall 10B of the heating cooking chamber <NUM>.

In the present embodiment, as illustrated in <FIG>, the magnetron <NUM> of the microwave supply unit <NUM> is located in the air intake space AR. The pair of left and right slide rails <NUM>, the first air sending unit <NUM>, the second air sending unit <NUM>, and the third energization unit <NUM> of the grill unit <NUM> are located in the exhaust space BR. Thus, the temperature of the air in the exhaust space BR tends to become higher than the temperature of the air in the air intake space AR due to the drive of the heating cooking apparatus <NUM>.

As illustrated in <FIG>, the plurality of air deflecting plates <NUM> branch the blown air flow BF that is blown out by the cooling fan <NUM> in an upward direction, guide the blown air flow BF to the components to be cooled, and split the blown air flow BF into an airflow sufficient to cool each of the components to be cooled. More specifically, the plurality of air deflecting plates <NUM> function as a duct that branches part of the blown air flow BF into five air flows. The plurality of air deflecting plates <NUM> are attached to an outer surface of the rear wall 10E of the heating cooking chamber <NUM>. The plurality of air deflecting plates <NUM> include a first air deflecting plate 42a, a third air deflecting plate 42b, a second air deflecting plate 42c, and a fourth air deflecting plate 42d.

The first air deflecting plate 42a guides part of the blown air flow BF blown out by the cooling fan <NUM> in the upward direction to the right slide rail 16a. Further, the first air deflecting plate 42a splits the blown air flow BF into an air flow sufficient to cool the right slide rail 16a. Accordingly, the first air deflecting plate 42a functions as an air deflecting plate for the right slide rail.

The third air deflecting plate 42b guides part of the blown air flow BF blown out by the cooling fan <NUM> in the upward direction to the air supply damper 35a. Accordingly, the third air deflecting plate 42b functions as an air deflecting plate for the air supply damper.

As illustrated in <FIG>, the second air deflecting plate 42c guides part of the blown air flow BF blown out by the cooling fan <NUM> in the upward direction to the left slide rail 16b. The second air deflecting plate 42c splits the blown air flow BF into an air flow sufficient to cool the left slide rail 16b. Accordingly, the second air deflecting plate 42c functions as an air deflecting plate for the left slide rail.

The fourth air deflecting plate 42d guides part of the blown air flow BF blown out by the cooling fan <NUM> in the upward direction to the third energization unit <NUM> of the grill unit <NUM>. The fourth air deflecting plate 42d splits the blown air flow BF into an air flow sufficient to cool the third energization unit <NUM> of the grill unit <NUM>. Accordingly, the fourth air deflecting plate 42d functions as an air deflecting plate for the grill unit.

As illustrated in <FIG>, the magnetron fan <NUM> cools the magnetron <NUM> of the microwave supply unit <NUM>. More specifically, the magnetron fan <NUM> suctions air outside of the heating cooking apparatus <NUM> through the plurality of air intake hole portions 11BA described with reference to <FIG> and blows the air onto the magnetron <NUM>. The operation characteristics of the magnetron <NUM> depend on the temperature of the magnetron <NUM>. Thus, the magnetron fan <NUM> inhibits fluctuations in the operation characteristics of the magnetron <NUM>. The magnetron fan <NUM> is located below the heating cooking chamber <NUM> and in front of the magnetron <NUM>. The magnetron fan <NUM> is, for example, a sirocco fan.

The configuration of the heating cooking apparatus <NUM> will be further described with reference to <FIG> is a block diagram illustrating the configuration of the heating cooking apparatus <NUM> according to the present embodiment.

As illustrated in <FIG>, the heating cooking apparatus <NUM> further includes a drive mechanism <NUM>, a control unit <NUM>, and a storage unit <NUM>.

The drive mechanism <NUM> includes a drive mechanism driving motor <NUM> and a rack pinion mechanism. The rack pinion mechanism includes a pinion. The control unit <NUM> controls the drive mechanism driving motor <NUM> to generate a driving force for rotating the pinion in a forward direction or a reverse direction. The pinion engages with the rack portion of the support member <NUM> described with reference to <FIG> and <FIG>. The drive mechanism <NUM> sets the pull-out body <NUM> to be in an open state or a closed state by rotating the pinion in a forward direction or a reverse direction.

The storage unit <NUM> is constituted by a Random Access Memory (RAM) and a Read Only Memory (ROM). The storage unit <NUM> stores control programs used for controlling the operation of each portion of the heating cooking apparatus <NUM>. The storage unit <NUM> stores setting information input by operating the operation panel unit <NUM>.

The control unit <NUM> is a hardware circuit. The hardware circuit includes a processor such as a Central Processing Unit (CPU). The control unit <NUM> executes control programs stored in the storage unit <NUM> to thereby control the operation panel unit <NUM>, the first drive unit <NUM>, the first energization unit <NUM>, the second drive unit <NUM>, the second energization unit <NUM>, the third energization unit <NUM>, the microwave supply unit <NUM>, the air supply damper 35a, the exhaust damper 35b, the cooling fan <NUM>, the magnetron fan <NUM>, the drive mechanism driving motor <NUM>, and the storage unit <NUM>.

The control unit <NUM> controls the drive of the cooling fan <NUM> and the magnetron fan <NUM> according to the type of heating cooking mode received by the operation panel unit <NUM>. When being operated by a user, the operation panel unit <NUM> receives a command to set any one of heating cooking mode among the microwave heating mode, the first hot air circulation heating mode, the second hot air circulation heating mode, and the grill heating mode. The control unit <NUM> sets the heating cooking mode according to the command received by the operation panel unit <NUM>. For example, when the control unit <NUM> sets the first hot air circulation heating mode, the second hot air circulation heating mode, or the grill heating mode as the heating cooking mode, the control unit <NUM> drives the cooling fan <NUM>. In this case, the control unit <NUM> does not drive the magnetron fan <NUM>. When the control unit <NUM> sets the microwave heating mode as the heating cooking mode, for example, the control unit <NUM> drives the cooling fan <NUM> and the magnetron fan <NUM>.

The control unit <NUM> controls the air supply damper 35a and the exhaust damper 35b according to the type of heating cooking mode received by the operation panel unit <NUM>. More specifically, when the control unit <NUM> sets the first hot air circulation heating mode, the second hot air circulation heating mode, or the grill heating mode as the heating cooking mode, the control unit <NUM> causes the air supply damper 35a and the exhaust damper 35b to close the air supply hole portions 10A1 and the exhaust hole portions 10B1, respectively. In this manner, when the first hot air circulation heating mode, the second hot air circulation heating mode, or the grill heating mode is executed, the accommodation space 1A is closed. As a result, the temperature in the accommodation space 1A is maintained.

When the control unit <NUM> sets the microwave heating mode as the heating cooking mode, the control unit <NUM> causes the air supply damper 35a and the exhaust damper 35b to open the air supply hole portions 10A1 and the exhaust hole portions 10B1, respectively. In this manner, when the microwave heating mode is executed, the accommodation space 1A is opened. As a result, the damper unit <NUM> can detect a finish of the object to be heated that has been heated and cooked.

More specifically, when the microwave heating mode is executed, water vapor emitted from the object to be heated in the accommodation space 1A travels from the accommodation space 1A into the exhaust damper 35b. The humidity sensor 35b1 detects the amount of vapor in the exhaust damper 35b. The amount of vapor in the exhaust damper 35b depends on the temperature of the object to be heated that has been heated and cooked. The control unit <NUM> determines whether the amount of vapor detected by the humidity sensor 35b1 is equal to or more than a predetermined value. The predetermined value indicates an amount of vapor that corresponds to a desired finishing temperature of the object to be heated. When the control unit <NUM> determines that the amount of vapor detected by the humidity sensor 35b1 is equal to or more than the predetermined value, the control unit <NUM> terminates the drive of the microwave supply unit <NUM>. When the control unit <NUM> determines that the amount of vapor detected by the humidity sensor 35b1 is not equal to or more than the predetermined value, the control unit <NUM> does not terminate the drive of the microwave supply unit <NUM>. The storage unit <NUM> stores the predetermined value. The air inside the exhaust damper 35b is discharged to the outside of the heating cooking apparatus <NUM> through the exhaust hole portion 11BB described with reference to <FIG>.

Next, the configuration of the see-through window portion <NUM> of the pull-out body <NUM> will be further described with reference to <FIG> is a cross-sectional view of the lid portion <NUM> of the pull-out body <NUM> along a section line XII in <FIG>.

As illustrated in <FIG>, in the present embodiment, the lid portion <NUM> includes the see-through window portion <NUM> described with reference to <FIG>, a frame portion <NUM>, and a cover member <NUM>. The frame portion <NUM> includes an opening portion 22A. The opening portion 22A is located at a substantially center portion of the frame portion <NUM> in the up-down direction and the left-right direction. The opening portion 22A passes through the frame portion <NUM> in the front-rear direction. The see-through window portion <NUM> is attached to the opening portion 22A of the frame portion <NUM>. In other words, the frame portion <NUM> supports the see-through window portion <NUM>. The see-through window portion <NUM> faces the accommodation space 1A in a closed state of the pull-out body <NUM>. Details of a configuration of the frame portion <NUM> will be described below with reference to <FIG>. Details of a configuration of the cover member <NUM> will be described below with reference to <FIG>.

In the present embodiment, the see-through window portion <NUM> of the lid portion <NUM> includes three glass plates <NUM> and a punched metal plate <NUM>. The three glass plates <NUM> include a front glass plate <NUM>, a heat-ray reflecting glass <NUM>, and a rear glass plate <NUM>. The rear glass plate <NUM> is an example of a first glass plate. The front glass plate <NUM> is an example of a second glass plate.

The front glass plate <NUM>, the heat-ray reflecting glass <NUM>, the punched metal plate <NUM>, and the rear glass plate <NUM> are arranged, in this order, side by side in a line at intervals along a pull-out direction of the pull-out body <NUM>. In other words, among the three glass plates <NUM>, the rear glass plate <NUM> is located closest to the accommodation space 1A. The front glass plate <NUM> is located opposite to the accommodation space 1A. The heat-ray reflecting glass <NUM> is located between the rear glass plate <NUM> and the front glass plate <NUM>. In other words, the heat-ray reflecting glass <NUM> is located adjacent to the rear glass plate <NUM>.

Each of the front glass plate <NUM>, the heat-ray reflecting glass <NUM>, and the rear glass plate <NUM> has a rectangular shape. Each of the front glass plate <NUM>, the heat-ray reflecting glass <NUM>, and the rear glass plate <NUM> has a smaller area in this order. As illustrated in <FIG>, the lid portion <NUM> includes a front surface 20B. The front surface 20B includes a lower area 20B1. In the present embodiment, the front glass plate <NUM> covers a portion excluding the lower area 20B1 of the front surface 20B of the lid portion <NUM>. That is, the front glass plate <NUM> covers the most part of the front surface 20B of the lid portion <NUM>. Accordingly, the temperature of the outer surface of the lid portion <NUM> depends on the temperature of the front glass plate <NUM>. The temperature of the outer surface of the lid portion <NUM> indicates the temperature of the front surface 20B of the lid portion <NUM>.

In the present embodiment, each of the front glass plate <NUM> and the rear glass plate <NUM> includes a float heat-resistant tempered glass, a frosted plate heat-resistant tempered glass, a figured heat-resistant tempered glass, a low-reflection glass, a float plate glass, a polished plate glass, a figured plate glass, a wire mesh plate glass, a wire plate glass, a laminated glass, a tempered glass, an insulating glass, or a double-tempered glass. The thickness of each of the front glass plate <NUM> and the rear glass plate <NUM> is preferably <NUM> or more and <NUM> or less, and more preferably <NUM> from the perspective of costs and the like. Each of the front glass plate <NUM> and the rear glass plate <NUM> may be a commercial product.

Subsequently, the heat-ray reflecting glass <NUM> and the punched metal plate <NUM> will be further described with reference to <FIG>. The heat-ray reflecting glass <NUM> reflects heat rays (infrared rays). The heat rays include far-infrared rays. Specifically, the heat-ray reflecting glass <NUM> mainly reflects heat rays radiated from the first heater <NUM> (see <FIG>) of the first air sending unit <NUM>, the second heater <NUM> (see <FIG>) of the second air sending unit <NUM>, or the heating cooking heater unit <NUM> (see <FIG>) of the grill unit <NUM>.

As illustrated in <FIG>, the heat-ray reflecting glass <NUM> includes a glass substrate 212A and a heat-ray reflective film 212B. The heat-ray reflective film 212B is layered on the entire surface of one surface of the glass substrate 212A. The heat-ray reflecting glass <NUM> is disposed such that the heat-ray reflective film 212B is located proximate to the accommodation space 1A in the lid portion <NUM>.

The glass substrate 212A includes a float heat-resistant tempered glass, a frosted plate heat-resistant tempered glass, a figured heat-resistant tempered glass, a low-reflection glass, a float plate glass, a polished plate glass, a figured plate glass, a wire mesh plate glass, a wire plate glass, a laminated glass, a tempered glass, an insulating glass, or a double-tempered glass. The thickness of the glass substrate 212A is, for example, <NUM> or more and <NUM> or less.

The heat-ray reflective film 212B reflects heat rays. The heat-ray reflective film 212B includes a metal oxide film, a metal film, an alloy film, or a layered film. The layered film indicates a layered body of a metal oxide film and a metal film. The material of the metal film includes, for example, silver (Ag). The material of the alloy layer includes, for example, silver (Ag), palladium (Pd), gold (Au), copper (Cu), or platinum (Pt). The material of a metal oxide film includes, for example, bismuth oxide (Bi<NUM>O<NUM>), tin oxide (SnO<NUM>), zinc oxide (ZnO), tantalum pentoxide (Ta<NUM>O<NUM>), niobium pentoxide (Nb<NUM>O<NUM>), tungsten trioxide (WO<NUM>), titanium dioxide (TiO<NUM>), aluminum oxide (Al<NUM>O<NUM>), zirconium dioxide (ZrO<NUM>), or indium oxide (In<NUM>O<NUM>). The thickness of the heat-ray reflective film 212B is preferably <NUM> or more and <NUM> or less.

The heat-ray reflecting glass <NUM> may be a commercial product. The heat-ray reflecting glass <NUM> includes a heat-ray reflecting heat-resistant tempered glass.

The punched metal plate <NUM> reliably prevents microwaves radiated into the accommodation space 1A due to the drive of the microwave supply unit <NUM> (see <FIG>) from leaking to the outside of the heating cooking apparatus <NUM> through the see-through window portion <NUM>. Further, the punched metal plate <NUM> inhibits transmission of heat rays radiated from the first heater <NUM> (see <FIG>) of the first air sending unit <NUM>, the second heater <NUM> (see <FIG>) of the second air sending unit <NUM>, or the heating cooking heater unit <NUM> (see <FIG>) of the grill unit <NUM>.

The punched metal plate <NUM> includes a plurality of punch holes. The plurality of punch holes block the transmission of microwaves radiated from the microwave supply unit <NUM> (see <FIG>). The plurality of punch holes are formed such that a user can see the accommodation space 1A of the heating cooking chamber <NUM>. Specifically, the plurality of punch holes of the punched metal plate <NUM> are formed in a mesh shape. The material of the punched metal plate <NUM> includes a metal.

In the present embodiment, the front glass plate <NUM>, the heat-ray reflecting glass <NUM>, the punched metal plate <NUM>, and the rear glass plate <NUM> are arranged, in this order, side by side in a line at intervals along a pull-out direction of the pull-out body <NUM>. Accordingly, the lid portion <NUM> includes a heat-ray blocking space CR and a heat insulation space DR. The heat-ray blocking space CR mainly blocks the transmission of heat rays and inhibits heat transfer. The heat-ray blocking space CR indicates an enclosed space formed by the rear surface of the heat-ray reflecting glass <NUM>, the front surface of the rear glass plate <NUM>, and the frame portion <NUM>. The heat insulation space DR mainly inhibits heat transfer. The heat insulation space DR indicates an enclosed space formed by the rear surface of the front glass plate <NUM>, the front surface of the heat-ray reflecting glass <NUM>, and the frame portion <NUM>. The heat-ray blocking space CR is located behind the heat insulation space DR.

The temperature of air in the accommodation space 1A rises due to the drive of the first air sending unit <NUM>, the second air sending unit <NUM>, or the grill unit <NUM>. Further, the first air sending unit <NUM>, the second air sending unit <NUM>, or the grill unit <NUM> radiates heat rays into the accommodation space 1A by the drive thereof. The rear glass plate <NUM> absorbs heat rays and generates heat. Accordingly, the rear glass plate <NUM> is easily to be set at high temperature due to heat transfer, convective heat transfer, or heat radiation.

In the present embodiment, the lid portion <NUM> includes a heat-ray blocking space CR. Air in the heat-ray blocking space CR functions as a heat insulating material. For this reason, heat of the rear glass plate <NUM> is hardly to be heat-transferred to the heat-ray reflecting glass <NUM>. Further, in the present embodiment, the heat-ray reflecting glass <NUM> includes the heat-ray reflective film 212B. The heat-ray reflecting glass <NUM> is disposed such that the heat-ray reflective film 212B is on the rear side. The heat-ray reflective film 212B reflects heat rays. For this reason, heat rays hardly reach the glass substrate 212A of the heat-ray reflecting glass <NUM>. That is, heat generated by the heat-ray reflecting glass <NUM> due to absorption of heat rays is inhibited. As a result, the temperature of the heat-ray reflecting glass <NUM> is lower than that in a case where a heat-resistant tempered glass is used instead of the heat-ray reflecting glass <NUM>.

In the present embodiment, the lid portion <NUM> includes a heat insulation space DR. Air in the heat insulation space DR functions as a heat insulating material. For this reason, heat of the heat-ray reflecting glass <NUM> is hardly to be heat-transferred to the front glass plate <NUM>. Further, in the present embodiment, the heat-ray reflecting glass <NUM> includes a heat-ray reflective film 212B. For this reason, heat rays radiated into the accommodation space 1A hardly reach the front glass plate <NUM>. That is, heat generated by the front glass plate <NUM> due to absorption of heat rays is inhibited. As a result, the temperature of the front glass plate <NUM> is lower than that in a case where a heat-resistant tempered glass is used instead of the heat-ray reflecting glass <NUM>. Accordingly, the heating cooking apparatus <NUM> can inhibit an increase in the temperature of the outer surface of the lid portion <NUM>.

Next, a configuration of the frame portion <NUM> will be further described with reference to <FIG>. <FIG> is a perspective view of the appearance of the heating cooking apparatus <NUM> according to the present embodiment. More specifically, <FIG> illustrates the appearance of the heating cooking apparatus <NUM> in a state where the pull-out body <NUM> is pulled out, as viewed in an upper right diagonal direction from behind. Further, <FIG> illustrates the heating cooking apparatus <NUM> in a state where the cover member <NUM> is not attached.

As illustrated in <FIG>, the frame portion <NUM> of the lid portion <NUM> includes a choke groove 22B in addition to the opening portion 22A described with reference to <FIG>. The choke groove 22B is formed to surround the see-through window portion <NUM>. As illustrated in <FIG>, the panel <NUM> includes a front surface <NUM>. The choke groove 22B faces the front surface <NUM> of the panel <NUM> in a closed state of the pull-out body <NUM>. That is, the choke groove 22B is located outward from the opening 11A of the panel <NUM> in the closed state of the pull-out body <NUM>. The material of each of the lid portion <NUM> and the panel <NUM> is a metal.

The choke groove 22B prevents generation of gaps between the front surface <NUM> of the panel <NUM> and the rear surface 20A of the lid portion <NUM> in the closed state of the pull-out body <NUM>. As a result, the choke groove 22B reliably prevents microwaves radiated into the accommodation space 1A from leaking to the outside of the heating cooking apparatus <NUM> when the microwave supply unit <NUM> is driven.

Next, details of the configuration of the lid portion <NUM> will be described with reference to <FIG>. <FIG> is a perspective view of the appearance of the heating cooking apparatus <NUM> according to the present embodiment. More specifically, <FIG> illustrates the appearance of the heating cooking apparatus <NUM> in a state where the pull-out body <NUM> is pulled out, as viewed in an upper right diagonal direction from behind. In <FIG>, a dashed line indicates an area of the rear surface 20A of the lid portion <NUM> that faces the opening 11A (see <FIG>) of the panel <NUM> in the closed state of the pull-out body <NUM>. <FIG> is a partial cross-sectional view of the lid portion <NUM> along a section line XV in <FIG>.

As illustrated in <FIG>, the lid portion <NUM> includes the cover member <NUM> in addition to the see-through window portion <NUM> and the frame portion <NUM> described with reference to <FIG>. The cover member <NUM> prevents foreign particles from being infiltrated into the choke groove 22B of the lid portion <NUM>.

The cover member <NUM> is a rectangular frame-shaped object. The cover member <NUM> covers the entire choke groove 22B of the lid portion <NUM>. Specifically, the cover member <NUM> is located outward from the opening 11A of the panel <NUM> in the closed state of the pull-out body <NUM>. The material of the cover member <NUM> is a synthetic resin. The synthetic resin includes, for example, polypropyne.

As illustrated in <FIG>, the cover member <NUM> includes a pair of air supply hole portions 23A. The pair of air supply hole portions 23A guide part of the blown air flow BF to an air-cooled space ER to be described below with reference to <FIG> in the closed state of the pull-out body <NUM>. The pair of air supply hole portions 23A include the right air supply hole portion 23Aa and the left air supply hole portion 23Ab. The right air supply hole portion 23Aa is located at a right portion on the back surface of the cover member <NUM>. The right air supply hole portion 23Aa faces the right fifth through hole portion 11Fa of the panel <NUM> described with reference to <FIG> in the closed state of the pull-out body <NUM>. The left air supply hole portion 23Ab is located at a left portion on the back surface of the cover member <NUM>. The left air supply hole portion 23Ab faces the left fifth through hole portion 11Fb of the panel <NUM> described with reference to <FIG> in the closed state of the pull-out body <NUM>. As illustrated in <FIG>, the pair of air supply hole portions 23A pass through the cover member <NUM>. The pair of air supply hole portions 23A are examples of first through hole portions.

As illustrated in <FIG>, the cover member <NUM> is located on an inner surface S22 of the frame portion <NUM>. The inner surface S22 of the frame portion <NUM> indicates the surface of the frame portion <NUM> proximate to the accommodation space 1A. When the cover member <NUM> is attached to the frame portion <NUM>, the air-cooled space ER is formed between the cover member <NUM> and the inner surface S22 of the frame portion <NUM>. The air-cooled space ER is formed to surround the see-through window portion <NUM>. The air-cooled space ER communicates with the pair of air supply hole portions 23A of the cover member <NUM>. The air-cooled space ER is an example of a second space.

As illustrated in <FIG> and <FIG>, the frame portion <NUM> of the lid portion <NUM> includes a pair of exhaust hole portions 22C. As illustrated in <FIG>, the air-cooled space ER communicates with the pair of exhaust hole portions 22C of the frame portion <NUM>. As illustrated in <FIG> and <FIG>, the pair of exhaust hole portions 22C guide air in the air-cooled space ER to the outside of the heating cooking apparatus <NUM>. The pair of exhaust hole portions 22C include a right exhaust hole portion 22Ca and a left exhaust hole portion 22Cb. The lid portion <NUM> includes a right wall 20C and a left wall 20D. The right exhaust hole portion 22Ca is located at an upper portion of the right wall 20C of the lid portion <NUM>. The right exhaust hole portion 22Ca passes through the right wall 20C of the lid portion <NUM>. The left exhaust hole portion 22Cb is located at an upper portion of the left wall 20D of the lid portion <NUM>. The left exhaust hole portion 22Cb passes through the left wall 20D of the lid portion <NUM>. The pair of exhaust hole portions 22C are examples of second through hole portions.

Next, a flow of air generated by the drive of the cooling fan <NUM> will be described with reference to <FIG>. <FIG> is a diagram illustrating a right side surface of the heating cooking apparatus <NUM> according to the present embodiment. <FIG> is a diagram illustrating a back surface of the heating cooking apparatus <NUM> according to the present embodiment. <FIG> is a diagram illustrating an upper surface of the heating cooking apparatus <NUM> according to the present embodiment. <FIG> is a diagram illustrating a left side surface of the heating cooking apparatus <NUM> according to the present embodiment. Note that the housing <NUM> is omitted in <FIG>.

As illustrated in <FIG>, when the cooling fan <NUM> is driven, an intake air flow AF is generated. The intake air flow AF flows through the air intake space AR described with reference to <FIG>. At this time, the intake air flow AF cools a power supply and the electrical components that are located in the air intake space AR.

When the cooling fan <NUM> is driven, the blown air flow BF is generated. The blown air flow BF described with reference to <FIG> flows through the exhaust space BR.

As illustrated in <FIG>, the blown air flow BF is mainly branched into a first blown air flow BF1 to a fifth blown air flow BF5 by the plurality of air deflecting plates <NUM> described with reference to <FIG> and <FIG>.

The first blown air flow BF1 is formed by the first air deflecting plate 42a. More specifically, the first blown air flow BF1 is formed through a process in which part of the blown air flow BF blown out upward comes into contact with the first air deflecting plate 42a and flows toward the right slide rail 16a.

As illustrated in <FIG>, after flowing along the right slide rail 16a, the first blown air flow BF1 flows upward. At this time, the first blown air flow BF1 cools the right slide member 132a, the right slide rail 16a, and the like.

In addition, part of the first blown air flow BF1 flows into the right air supply hole portion 23Aa (see <FIG>) of the cover member <NUM> through the right fifth through hole portion 11Fa of the panel <NUM> described with reference to <FIG>. Subsequently, as illustrated in <FIG>, the first blown air flow BF1 flows through the air-cooled space ER. The temperature of the frame portion <NUM> tends to become high as the temperature in the accommodation space 1A rises due to the drive of the first air sending unit <NUM>, the second air sending unit <NUM>, or the grill unit <NUM>. The first blown air flow BF1 flows through the air-cooled space ER to cool the frame portion <NUM>. The first blown air flow BF1 in the air-cooled space ER joins the second blown air flow BF2 in the air-cooled space ER. The first blown air flow BF1 and the second blown air flow BF2 having a temperature risen through heat exchange due to cooling are discharged to the outside of the heating cooking apparatus <NUM> through the right exhaust hole portion 22Ca of the lid portion <NUM>.

As illustrated in <FIG>, the first blown air flow BF1 flows toward the exhaust hole portion 11C described with reference to <FIG> along the upper wall 10C of the heating cooking chamber <NUM>. At this time, the first blown air flow BF1 joins the second blown air flow BF2 to the fifth blown air flow BF5. Subsequently, the blown air flow BF having a temperature risen through heat exchange due to cooling is discharged to the outside of the heating cooking apparatus <NUM> through the exhaust hole portion 11C of the panel <NUM>.

As illustrated in <FIG>, the second blown air flow BF2 is formed by the third air deflecting plate 42b. Specifically, the second blown air flow BF2 is formed through a process in which part of the blown air flow BF blown out upward comes into contact with the third air deflecting plate 42b and flows toward the air supply damper 35a. As illustrated in <FIG>, after flowing along the right wall 10A of the heating cooking chamber <NUM>, the second blown air flow BF2 flows upward. At this time, part of the second blown air flow BF2 is supplied into the accommodation space 1A when the air supply damper 35a opens the air supply hole portion 10A1 of the heating cooking chamber <NUM>.

In addition, part of the second blown air flow BF2 flows through the right air supply hole portion 23Aa (see <FIG>) of the cover member <NUM> through the right fifth through hole portion 11Fa of the panel <NUM> described with reference to <FIG>. Subsequently, as illustrated in <FIG>, the second blown air flow BF2 flows through the air-cooled space ER. The second blown air flow BF2 flows through the air-cooled space ER to cool the frame portion <NUM>. In addition, the second blown air flow BF2 in the air-cooled space ER joins the first blown air flow BF1 in the air-cooled space ER. The first blown air flow BF1 and the second blown air flow BF2 having a temperature risen through heat exchange due to cooling are discharged to the outside of the heating cooking apparatus <NUM> through the right exhaust hole portion 22Ca of the lid portion <NUM>.

As illustrated in <FIG>, the second blown air flow BF2 flows toward the exhaust hole portion 11C described with reference to <FIG> along the upper wall 10C of the heating cooking chamber <NUM>. At this time, the second blown air flow BF2 joins the first blown air flow BF1 and the third blown air flow BF3 to the fifth blown air flow BF5. Subsequently, the blown air flow BF having a temperature risen through heat exchange due to cooling is discharged to the outside of the heating cooking apparatus <NUM> through the exhaust hole portion 11C of the panel <NUM>.

As illustrated in <FIG>, the third blown air flow BF3 is formed by the second air deflecting plate 42c. Specifically, the third blown air flow BF3 is formed through a process in which the blown air flow BF blown out upward comes into contact with the second air deflecting plate 42c and flows toward the left slide rail 16b.

As illustrated in <FIG>, after flowing along the left slide rail 16b, the third blown air flow BF3 flows upward. At this time, the third blown air flow BF3 cools the left slide member 132b, the left slide rail 16b, and the like.

In addition, part of the third blown air flow BF3 flows through the left air supply hole portion 23Ab (see <FIG>) of the cover member <NUM> through the left fifth through hole portion 11Fb of the panel <NUM> described with reference to <FIG>. Subsequently, the third blown air flow BF3 flows through the air-cooled space ER, similarly to the first blown air flow BF1. The third blown air flow BF3 flows through the air-cooled space ER to cool the frame portion <NUM>. In addition, the third blown air flow BF3 in the air-cooled space ER joins the fourth blown air flow BF4 in the air-cooled space ER. The third blown air flow BF3 and the fourth blown air flow BF4 having a temperature risen through heat exchange due to cooling are discharged to the outside of the heating cooking apparatus <NUM> through the left exhaust hole portion 22Cb of the lid portion <NUM> as illustrated in <FIG>.

As illustrated in <FIG>, the third blown air flow BF3 flows toward the exhaust hole portion 11C described with reference to <FIG> along the upper wall 10C of the heating cooking chamber <NUM>. At this time, the third blown air flow BF3 joins the first blown air flow BF1, the second blown air flow BF2, the fourth blown air flow BF4, and the fifth blown air flow BF5. Subsequently, the blown air flow BF having a temperature risen through heat exchange due to cooling is discharged to the outside of the heating cooking apparatus <NUM> through the exhaust hole portion 11C of the panel <NUM>.

As illustrated in <FIG>, the fourth blown air flow BF4 is formed by the fourth air deflecting plate 42d. Specifically, the fourth blown air flow BF4 is formed through a process in which part of the blown air flow BF blown out upward comes into contact with the fourth air deflecting plate 42d and flows toward the third energization unit <NUM> of the grill unit <NUM>.

As illustrated in <FIG>, after flowing along the left wall 10B of the heating cooking chamber <NUM>, the fourth blown air flow BF4 flows upward. At this time, the fourth blown air flow BF4 cools the third energization unit <NUM> of the grill unit <NUM>, and the like.

In addition, part of the fourth blown air flow BF4 flows through the left air supply hole portion 23Ab (see <FIG>) of the cover member <NUM> through the left fifth through hole portion 11Fb of the panel <NUM> described with reference to <FIG>. Subsequently, the fourth blown air flow BF4 flows through the air-cooled space ER, similarly to the second blown air flow BF2. The fourth blown air flow BF4 flows through the air-cooled space ER to cool the frame portion <NUM>. In addition, the fourth blown air flow BF4 in the air-cooled space ER joins the third blown air flow BF3 in the air-cooled space ER. The third blown air flow BF3 and the fourth blown air flow BF4 having a temperature risen through heat exchange due to cooling are discharged to the outside of the heating cooking apparatus <NUM> through the left exhaust hole portion 22Cb of the lid portion <NUM> as illustrated in <FIG>.

As illustrated in <FIG>, the fourth blown air flow BF4 flows toward the exhaust hole portion 11C described with reference to <FIG> along the upper wall 10C of the heating cooking chamber <NUM>. At this time, the fourth blown air flow BF4 joins the first blown air flow BF1 to the third blown air flow BF3, and the fifth blown air flow BF5. Subsequently, the blown air flow BF having a temperature risen through heat exchange due to cooling is discharged to the outside of the heating cooking apparatus <NUM> through the exhaust hole portion 11C of the panel <NUM>.

As illustrated in <FIG>, the fifth blown air flow BF5 is formed by not coming into contact with the plurality of air deflecting plates <NUM>. The fifth blown air flow BF5 flows upward along the outer surface of the rear wall 10E of the heating cooking chamber <NUM>. Subsequently, as illustrated in <FIG>, the fifth blown air flow BF5 flows toward the exhaust hole portion 11C described with reference to <FIG> along the upper wall 10C of the heating cooking chamber <NUM>. At this time, the fifth blown air flow BF5 joins the first blown air flow BF1 to the fourth blown air flow BF4. Subsequently, the blown air flow BF having a temperature risen through heat exchange due to cooling is discharged to the outside of the heating cooking apparatus <NUM> through the exhaust hole portion 11C of the panel <NUM>.

Next, a cabinet <NUM> with the built-in heating cooking apparatus <NUM> will be described with reference to <FIG> is a diagram illustrating an external appearance of the cabinet <NUM> with the built-in heating cooking apparatus <NUM> according to the present embodiment.

The heating cooking apparatus <NUM> is disposed in the form of being built into the cabinet <NUM>. As illustrated in <FIG>, the cabinet <NUM> includes an accommodation space FR. The heating cooking apparatus <NUM> is disposed in the accommodation space FR. The accommodation space FR is a space having a rectangular parallelepiped shape. The cabinet <NUM> includes a right inner surface 2A, a left inner surface 2B, an upper inner surface 2C, a lower inner surface 2D, and a rear inner surface 2E. The accommodation space FR is formed by the right inner surface 2A, the left inner surface 2B, the upper inner surface 2C, the lower inner surface 2D, and the rear inner surface 2E.

As described with reference to <FIG>, in the present embodiment, the heating cooking apparatus <NUM> includes the heating cooking chamber <NUM>, the lid portion <NUM>, the first air sending unit <NUM>, the second air sending unit <NUM>, and the grill unit <NUM>. The lid portion <NUM> includes the see-through window portion <NUM>. The see-through window portion <NUM> includes three glass plates <NUM>. The three glass plates <NUM> include the heat-ray reflecting glass <NUM>, the rear glass plate <NUM>, and the front glass plate <NUM>. The heat-ray reflecting glass <NUM> is located between the rear glass plate <NUM> and the front glass plate <NUM>. The rear glass plate <NUM>, the heat-ray reflecting glass <NUM>, and the front glass plate <NUM> are arranged side by side in a line at intervals. Thereby, the see-through window portion <NUM> includes the heat-ray blocking space CR and the heat insulation space DR. Air in the heat-ray blocking space CR and air in the heat insulation space DR serve as a heat insulating material. Further, the heat-ray blocking space CR blocks the transmission of heat rays. Thus, heat rays are less likely to reach the front glass plate <NUM> than in a case where the heat-ray reflecting glass <NUM> is not provided. For this reason, the front glass plate <NUM> hardly generates heat due to the absorption of heat rays. That is, the temperature of the front glass plate <NUM> becomes lower than in a case where the heat-ray reflecting glass <NUM> is not provided. As a result, the heating cooking apparatus <NUM> can reduce the rise in the temperature of the outer surface of the lid portion <NUM>. In addition, even when some of particles constituting the heat-ray reflective film 212B of the heat-ray reflecting glass <NUM> is peeled off, it is possible to reliably prevent the peeled-off particles from infiltrating into the accommodation space 1A.

Further, in the present embodiment, the heating cooking apparatus <NUM> does not rotate an object to be heated when the microwave supply unit <NUM> is driven. For this reason, in order to uniformly heat the object to be heated in a grill heating mode, the heating cooking heater unit <NUM> is to be located in a substantially center portion in the front-rear direction, as described with reference to <FIG>. When the heating cooking heater unit <NUM> is located in a substantially center portion in the front-rear direction, the temperature of the outer surface of the lid portion <NUM> is more likely to become high than in a case where the heating cooking heater unit <NUM> is located at a rear portion in the front-rear direction. As a method for inhibiting the rise in the temperature of the outer surface of the lid portion <NUM>, it is conceivable to reduce the output of the heating cooking heater unit <NUM>. In the present embodiment, the rear glass plate <NUM>, the heat-ray reflecting glass <NUM>, and the front glass plate <NUM> are arranged side by side in a line at intervals. For this reason, the heating cooking apparatus <NUM> can reduce the rise in the temperature of the outer surface of the lid portion <NUM> even when the output of the heating cooking heater unit <NUM> is not reduced. For example, even when the temperature in the accommodation space 1A is approximately <NUM> degrees, the heating cooking apparatus <NUM> can maintain the temperature of the outer surface of the lid portion <NUM> at approximately <NUM> degrees.

As described with reference to <FIG>, among the three glass plates <NUM>, the rear glass plate <NUM> is located closest to the accommodation space 1A. The heat-ray reflecting glass <NUM> is located adjacent to the rear glass plate <NUM>. Thus, the heat-ray blocking space CR is located adjacent to the rear glass plate <NUM>. Thereby, the number of glass plates that generate heat due to the absorption of heat rays can be further reduced. For this reason, the temperature of the front glass plate <NUM> is, for example, lower than that in a case where the heat insulation space DR is located adjacent to the rear glass plate <NUM>. As a result, the heating cooking apparatus <NUM> can further reduce the rise in the temperature of the outer surface of the lid portion <NUM>.

As described with reference to <FIG>, the heat-ray reflecting glass <NUM> includes the glass substrate 212A and the heat-ray reflective film 212B. The heat-ray reflective film 212B is formed on one side of the glass substrate 212A. The heat-ray reflecting glass <NUM> is disposed such that the heat-ray reflective film 212B is located proximate to the accommodation space 1A. Thereby, heat rays are less likely to reach the glass substrate 212A of the heat-ray reflecting glass <NUM> than in a case where the heat-ray reflecting glass <NUM> is disposed such that the heat-ray reflective film 212B is located opposite to the accommodation space 1A. For this reason, the glass substrate 212A hardly generates heat due to absorption of heat. As a result, the heating cooking apparatus <NUM> can further reduce the rise in the temperature of the outer surface of the lid portion <NUM>.

As described with reference to <FIG>, the heating cooking apparatus <NUM> further includes the housing <NUM> and the cooling fan <NUM>. The lid portion <NUM> further includes the frame portion <NUM> and the cover member <NUM>. The cover member <NUM> is located outward from the opening 11A in a state where the lid portion <NUM> closes the opening 11A. The cover member <NUM> and the inner surface S22 form the air-cooled space ER therebetween. The cover member <NUM> includes the pair of air supply hole portions 23A. The frame portion <NUM> includes the pair of exhaust hole portions 22C. Thereby, the heating cooking apparatus <NUM> can guide, to the air-cooled space ER, part of the blown air flow BF flowing through the outer surface of the heating cooking chamber <NUM> by the drive of the cooling fan <NUM> and discharge it to the outside of the heating cooking apparatus <NUM>. For this reason, the heating cooking apparatus <NUM> can cool the lid portion <NUM> having a temperature risen due to the drive of the first air sending unit <NUM>, the second air sending unit <NUM>, or the grill unit <NUM>. As a result, the heating cooking apparatus <NUM> can further reduce the rise in the temperature of the outer surface of the lid portion <NUM>.

As described with reference to <FIG>, the heating cooking apparatus <NUM> includes the grill unit <NUM>. Thereby, the heating cooking apparatus <NUM> can perform heating and cooking by using radiant heat.

As described with reference to <FIG>, the heating cooking apparatus <NUM> includes the first air sending unit <NUM> and the second air sending unit <NUM>. Thereby, the heating cooking apparatus <NUM> can perform heating and cooking by using hot air. Further, the heating cooking apparatus <NUM> can heat and cook an object to be heated by using hot air having different heating conditions.

As described with reference to <FIG>, the heating cooking apparatus <NUM> includes the microwave supply unit <NUM>. The heating cooking apparatus <NUM> can perform heating and cooking by using microwaves.

As described with reference to <FIG>, the heating cooking apparatus <NUM> includes the partition plate <NUM>. The temperature of air in the exhaust space BR is higher than the temperature of air in the air intake space AR due to the temperature of the outer surface of the heating cooking chamber <NUM>, or the like. The partition plate <NUM> can more reliably prevent air in the air intake space AR and air in the exhaust space BR from being mixed together. Owing to this configuration, the heating cooking apparatus <NUM> can more easily blow out low-temperature air into the exhaust space BR. As a result, the heating cooking apparatus <NUM> can efficiently cool the components to be cooled.

As described with reference to <FIG>, the panel <NUM> includes the opening 11A. As illustrated in <FIG>, the air intake hole portion 11BA and the exhaust hole portion 11C are disposed to interpose the opening 11A therebetween. Thereby, the high-temperature air discharged through the exhaust hole portion 11C is less likely to be taken in through the air intake hole portion 11BA. As a result, the heating cooking apparatus <NUM> can efficiently cool the components to be cooled.

As described with reference to <FIG>, the air intake hole portion 11BA is disposed below the opening 11A. The exhaust hole portion 11C is disposed above the opening 11A. The high-temperature air more easily rises than the low-temperature air. For this reason, the high-temperature air discharged through the exhaust hole portion 11C is less likely to be taken in through the air intake hole portion 11BA. As a result, the heating cooking apparatus <NUM> can more efficiently cool the components to be cooled. Further, the heating cooking apparatus <NUM> can efficiently inhibit the temperature rise of the components to be cooled even when there is no space for disposing the air intake hole portion 11BA and the exhaust hole portion 11C on the right and the left of the opening 11A.

As described with reference to <FIG>, the cooling fan <NUM> is located at the same height as the air intake hole portion 11BA. Thereby, the cooling fan <NUM> can more easily take in air through the air intake hole portion 11BA as compared to a case where the cooling fan <NUM> is not disposed at the same height as the air intake hole portion 11BA. As a result, the heating cooking apparatus <NUM> can more efficiently cool the components to be cooled.

As described with reference to <FIG>, the cooling fan <NUM> is located behind the heating cooking chamber <NUM>. Thereby, the cooling fan <NUM> can blow out air from the rear of the heating cooking chamber <NUM>. Thereby, the heating cooking apparatus <NUM> can more easily guide the blown air flow BF to each of the components to be cooled. As a result, the heating cooking apparatus <NUM> can more efficiently cool the components to be cooled.

As described with reference to <FIG>, the cooling fan <NUM> includes a cross-flow fan. The cross-flow fan can take in air over a wide range in the left-right direction (horizontal direction) compared to a centrifugal blower. Thus, the heating cooking apparatus <NUM> can efficiently take in air through the air intake hole portion 11BA and can more efficiently cool the components to be cooled. The centrifugal blower includes a sirocco fan.

In the above, the embodiments of the present invention have been described with reference to the drawings (<FIG>). Note that the present invention is not limited to the embodiment described above and can be implemented in various modes within the scope not departing from the gist of the present invention (for example, (<NUM>) to (<NUM>) described below). The drawings primarily schematically illustrate each of the constituent elements for the sake of easier understanding, and the thickness, length, quantity, and the like of each of the illustrated constituent elements are different from the actual thickness, length, quantity, and the like by reason of creation of the drawings. Further, the material, shape, dimensions, and the like of each of the constituent elements illustrated in the embodiment described above are merely examples and are not particularly limited, and various modifications can be made within the scope not substantially departing from the effects of the present invention.

Claim 1:
A heating cooking apparatus (<NUM>) comprising:
a heating cooking chamber (<NUM>) including an accommodation space (1A) where an object to be heated is accommodated and an opening (11A) communicating with the accommodation space;
a lid portion (<NUM>) configured to close the opening;
a heat supply unit configured to supply heat into the accommodation space;
a pull-out body (<NUM>) that is pulled out freely relative to the accommodation space;
a housing (<NUM>) configured to accommodate the heating cooking chamber; and
a pair of slide rails slidably support the pull-out body,
wherein the pull-out body includes the lid portion,
the lid portion includes a see-through window portion (<NUM>) configured to make the accommodation space visible,
the see-through window portion includes three glass plates (<NUM>),
the three glass plates include
a heat-ray reflecting glass (<NUM>) configured to reflect heat rays,
a first glass plate (<NUM>) located proximate to the accommodation space, and
a second glass plate (<NUM>) located opposite to the accommodation space,
the heat-ray reflecting glass is located between the first glass plate and the second glass plate,
the first glass plate, the heat-ray reflecting glass, and the second glass plate are arranged side by side in a line at intervals along a pull-out direction of the pull-out body, characterized in that a fan (<NUM>) is disposed in a first space (R) formed between the heating cooking chamber and the housing; and
a first air deflecting plate (42a) and a second air deflecting plate (42c) are disposed in the first space, the first air deflecting plate guiding part of blown air flow (BF) blown out by the fan to a first slide rail of the pair of slide rails, the second air deflection plate guiding part of blown air flow (BF) to a second slide rail of the pair of slide rails.