Patent Description:
The content described in this section merely provides background information on the present invention and does not constitute the related art.

A cooking appliance is a home appliance that cooks food using microwaves and/or heater heat, which are type(s) of electromagnetic waves. The cooking appliance may be generally composed of a cavity, which is a space in which food is placed and cooked, and a door that opens and closes the cavity.

The related art related to the cooking appliance is disclosed in <CIT>.

When the cooking appliance is installed indoors, it is necessary to consider the efficient use of the cooking appliance, the saving of installation space, etc..

For this reason, the cooking appliance may be disposed at a location adjacent to a heating cooking device, for example, a heating-type oven, a gas range, etc. Specifically, the cooking appliance may be disposed above the heating cooking device.

When the cooking appliance is disposed above the heating cooking device, a user can conveniently cook food by reducing his/her movement in an environment where the cooking appliance and the heating cooking device are adjacent to each other. In addition, heat, oil mist, etc. generated from the heating cooking device can be discharged to the outside using the cooking appliance as a hood.

In a state in which the cooking appliance is disposed above the heating cooking device, the heat, oil mist, etc. generated from the heating cooking device disposed below the cooking appliance may adversely affect an operation of the cooking appliance.

For example, a display unit may be mounted on a front surface of a door provided in the cooking appliance in order to provide various types of information to the user. The user may know a cooking state of the cooked food inside the cavity by looking through the display unit. The display unit may be transparent in an off state. In addition, the display unit may be connected to another home appliance and/or may serve as a hub of the home appliance, thus, information other than cooking of food may be obtained through the display unit. In addition, the user may input a command required for cooking and other various commands into the display unit having a touch input through a touch method and thereby control other devices connected to the cooking appliance or exchanges messages.

When the cooking appliance is disposed above a heating cooking device, the heat, oil mist, etc. generated from the heating cooking device may penetrate into the display unit and other parts mounted on the door.

It is therefore necessary to suppress or prevent the display unit and other parts mounted on the door of the cooking appliance from being damaged or malfunctioning due to such heat, oil mist, etc.

<CIT> relates to a door and a home appliance including the door, wherein the home appliance includes the features of the preamble of claim <NUM>.

<CIT> relates to a door and a cooking appliance therewith, wherein the cooking appliance includes the features of the preamble of claim <NUM>.

<CIT> relates to a microwave oven having a hood. The microwave oven having a hood includes a housing having a cavity, a heating source configured to provide heat to the cavity, an exhaust device mounted on a lower portion of the housing, a door connected to the housing, and a display disposed on a front surface of the door. A suction hole through which air is suctioned and a discharge hole through which the air suctioned through the suction hole is discharged are defined in the door.

<CIT> relates to a non-radiative microwave oven, comprising an oven body and an oven door which are connected to form a closed cooking chamber equipped with a lighting lamp on the inner wall thereof, wherein the oven body and the oven door are both metal-shielded bodies.

<CIT> relates to an integrated oven with a tablet computer and/or flat panel display, wherein a microphone is integrated with the oven.

<CIT> relates to a door body and an intelligent refrigerator including the door body, wherein the door body is provided with at least one microphone.

It is therefore an object of the present disclosure to provide a cooking appliance which is able to suppress or prevent a display unit and other parts mounted on or in the cooking appliance from being damaged or malfunctioning due to heat, oil mist, etc..

It is further an object to provide a cooking appliance having a door with an air guide in which a flow path of air flowing therein is formed in order to form an air curtain on the door and cool parts inside the door.

At this time, when the air leaks from a gap at the edge of the air guide, it may cause the air flowing inside the door to interfere with forming the air curtain or cooling the inside of the door. It is further an object to provide a structure that suppresses air from leaking into the gap at the edge of the air guide.

It is further an object to provide a microphone for recognizing a user's voice on the cooking appliance. The microphone needs to be mounted at a location that is suitable for recognizing the user's voice and convenient for the user.

It is further an object to provide a cooking appliance having a display unit provided on a front surface in order to provide various types of information to the user.

It is further an object to provide a cooking appliance having a display unit provided on a door of the cooking appliance using microwaves.

It is further an object to provide a cooking appliance having a structure in which a microphone is mounted on a door.

It is further an object to provide a cooking appliance having a structure capable of suppressing heat, oil mist, etc. generated from a heating cooking device disposed thereunder from penetrating into a door.

It is further an object to provide a cooking appliance having a structure capable of suppressing a display unit from being contaminated by oil mist.

It is further an object to provide a cooking appliance having a cooling structure of a display module attached to a front surface of a door.

It is further an object to provide a cooking appliance having a structure capable of suppressing heat, oil mist, etc. from penetrating into a door by forming an air curtain outside the door.

It is further an object to provide a cooking appliance having a door equipped with a display unit on a front surface thereof and formed with a cooling structure for cooling the display unit and a microwave shielding structure for preventing microwave leakage.

It is further an object to provide a structure that suppresses air from leaking into a gap at an edge of an air guide.

The objects of the present invention are not limited to the above-described objects, and other objects and advantages not mentioned may be understood by the following description, and will be more clearly understood by the embodiments of the present invention.

The objects are solved by the features of independent claim <NUM>.

One embodiment of a cooking appliance includes a main body formed with a cavity, and a door for opening and closing the cavity.

The door includes a display module disposed in front of the door, a cooling flow path unit disposed behind the display module, and having a flow path through which air for cooling flows formed therein.

The door may further include a shielding unit disposed behind the cooling flow path unit.

According to the invention, a cooking appliance is provided comprising a main body formed with a cavity, and a door for opening and closing the cavity, wherein the door includes an outer panel forming an outer shape of the door; an inner panel disposed behind the outer panel and mounted on the outer panel; and a microphone mounted on or at a top portion of the door, and wherein the microphone is disposed between the outer panel and the inner panel.

The outer panel includes a support member configured to support the microphone, and the inner panel includes a fixing member that protrudes from an end of the inner panel and contacts a part of the microphone to fix a location of the microphone when the inner panel and the outer panel are coupled.

The shielding unit may be configured to shield electromagnetic waves generated from the main body.

The air flowing through the cooling flow path unit may be branched from an inside of the cooling flow path unit to be discharged to the top and bottom of the display module.

In the cooking appliance according to the invention, an outer panel includes an upper plate and a support member.

The upper plate has a microphone disposed on its lower side.

The upper plate blocks the microphone from being exposed to the outside.

The microphone is mounted on a lower side of the upper plate of the outer panel and is thus protected by the upper plate.

A support member supports the microphone to maintain a state of being in contact with a lower surface of the upper plate.

The support member and the upper plate may be spaced apart from each other in an up-down direction of the door, and a plate-shaped microphone may be stably mounted in a space formed thereby.

In the cooking appliance according to the embodiment, as the blowing fan rotates, the external air may flow into the door through the inlet of the air guide, and flow to be discharged to the outside of the door through the first outlet and the second outlet. The air forcibly flowing by the blowing fan may specifically have the following flow path of airflow.

The air may flow into the door from a first aperture of the outer panel and the inlet provided at a location corresponding thereto. The air flowing into the door may flow downward from the door to flow into the blowing fan.

The air may pass through the blowing fan in a front-rear direction of the door. At this time, the air may pass through the mounting hole of the air guide while passing through the blowing fan. The flow direction of the air may be changed from an up-down direction to a front-rear direction of the door in the blowing fan.

Since the front of the mounting hole is closed by the display unit, the air passed through the mounting hole may be branched in front of the air guide in the up-down direction.

A part of the branched air may flow in an upward direction of the door to be discharged to the first outlet. The other part of the branched air may flow in the downward direction of the door to be discharged to the second outlet.

One embodiment of a cooking appliance may include a main body formed with a cavity, and a door for opening and closing the cavity.

The door may include a display unit on which videos or images may be displayed, an outer panel disposed behind the display unit, and on which the display unit is mounted, an inner panel disposed behind the outer panel, and mounted on the outer panel, an air guide disposed between the outer panel and the inner panel, and coupled to the inner panel, a blowing device mounted on the air guide, and a microphone mounted on the top of the outer panel.

The microphone may be mounted on a top of the door. The microphone may be disposed between the outer panel and the inner panel.

The outer panel may include an upper plate having the microphone disposed on a lower side, and blocking the microphone from being exposed to the outside, and a support member configured to support the microphone to maintain a state of being in contact with a lower surface of the upper plate.

The support member may include a pair of first support portions provided to support both ends of the microphone, and a second support portion disposed between the pair of first support portions, and disposed to be spaced apart from the first support portions.

Each of the first support portions may include a first connection portion formed to protrude from the lower surface of the upper plate and an inner wall of the outer panel, and a first guide rail protruding from the first connection portion, and having an upper surface disposed to be spaced apart from the lower surface of the upper plate to form a space into which the microphone is fitted.

The second support portion may include a second connection portion formed to protrude from the lower surface of the upper plate and the inner wall of the outer panel, and a second guide rail protruding from the second connection portion, and having an upper surface formed to have a stepped portion with the second connection portion to form a space into which the microphone is fitted between the upper surface and the lower surface of the upper plate.

The microphone may include a circuit board unit, a first buffering portion attached to one surface of the circuit board unit, and coming into contact with the lower surface of the upper plate when the microphone is mounted on the outer panel, and a second buffering portion attached to the other surface of the circuit board unit, and coming into contact with the upper surface of the first guide rail when the microphone is mounted on the outer panel.

The first buffering portion may be provided to be distributed over the entire one surface of the circuit board unit, and the second buffering portion may be disposed at a location corresponding to the first guide rail.

The circuit board unit may have second apertures formed in both ends, and the second buffering portion may be provided in a shape that surrounds an edge of the second aperture, and corresponds to the second aperture.

The first buffering portion may be provided with a through unit formed to pass through the first buffering portion, and the circuit board unit may be provided with an insertion protrusion having one surface formed to protrude, and inserted into the through unit.

The inner panel includes a fixing member formed to protrude from an end of the inner panel, and coming into contact with a part of the microphone to fix a location of the microphone when the inner panel and the outer panel are coupled.

The fixing member may include a first piece protruding from the inner panel, and having a part supporting a side surface of the microphone, and a second piece protruding from the first piece, and having a part supporting a lower surface of the microphone.

The fixing member may be formed so that a width of the second piece is smaller than a width of the first piece to form a stepped surface at a boundary between the first piece and the second piece, and the stepped surface may be provided to support side and lower surfaces of the microphone.

The door may further include a baffle disposed in front of the display unit, surrounding an edge of the display unit, and coupled to the outer panel to mount the display unit on the outer panel, a front cover disposed in front of the baffle, and provided to surround an edge of the baffle, and a plate disposed behind the inner panel, coupled to the inner panel, and having one side rotatably coupled to the main body.

The door may further include a first camera mounted on a lower portion of the outer panel to capture a state of a lower portion of the door, a second camera disposed on an upper portion of the door, mounted by passing through the baffle and the front cover, and configured to capture the front of the door, and a third camera mounted on the plate, disposed to face the cavity, and configured to capture the cavity.

The door may further include a human detection unit disposed on an upper portion of the door, mounted by passing through the baffle and the front cover, disposed at a location spaced apart from the second camera, and configured to detect the presence of a user in front of the cooking appliance.

In the cooking appliance according to the present invention, since the display module is provided on the front of the door, the user can know the cooking situation in the cooking appliance through the display module. The display module can serve as the hub of another home appliance to provide various types of information to the user, thereby enhancing the user's convenience.

In addition, in the cooking appliance according to the present disclosure, the airflow discharged to the outside of the door through the first outlet and the second outlet can form an air curtain, so that the heat and oil mist rising from the heating cooking device disposed below the cooking appliance can be effectively blocked by the air curtain.

Accordingly, it is possible to effectively suppress various electronic parts including the display unit provided on the door from being damaged or degraded by the heat and the oil mist. In addition, it is possible to prevent the display unit from being contaminated by the heat and the oil mist and thus giving inconvenience to the user.

In addition, in the cooking appliance according to the present invention, the air flowing inside the door can be discharged through the first outlet to cool the entire front surface of the display unit. In addition, the air flowing inside the door can effectively cool the heat-generating parts mounted on the rear surface of the display unit and inside the door.

In addition, in the cooking appliance according to the present invention, a door having all of the display structure, the cooling structure, and the shielding structure of the electromagnetic waves can be formed. The display structure, the cooling structure, and the shielding structure can be coupled to one another to slimly form the door as a whole. Accordingly, it is possible to prevent the thickness of the door from being increased even when all of the display structure, the cooling structure, and the shielding structure are formed on the door.

In addition, in the cooking appliance according to the present invention, the microphone can be mounted on the outer panel of the door and located at a place close to the front of the door so that the user can conveniently use the microphone. In addition, when the microphone is mounted on the support member and the door is completely assembled, the microphone can be stably mounted on the door without a separate fastening tool such as a bolt to facilitate the assembling work of the door as a whole.

In addition, in the cooking appliance according to the present invention, the airflow discharged to the outside of the door through the first outlet and the second outlet can form an air curtain, so that the heat and oil mist rising from the heating cooking device disposed below the cooking appliance can be effectively blocked by the air curtain.

Accordingly, it is possible to effectively suppress various electronic parts including the display unit provided on the door from being damaged or degraded by the heat and the oil mist.

Detailed effects of the present invention in addition to the above-described effects will be described together with the description of the specific items for practicing the present invention below.

The above and other objects, features and advantages of the present invention will become more apparent to those of ordinary skill in the art by describing in detail exemplary embodiments thereof with reference to the accompanying drawings, in which:.

Hereinafter, embodiments according to the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same reference numerals are used to indicate the same or similar components.

Although the first, second, etc. are used to describe various components, it goes without saying that these components are not limited by these terms. These terms are only used to distinguish one component from other components, and unless otherwise stated, it goes without saying that the first component may also be the second component.

Throughout the specification, unless specifically stated otherwise, each component may be singular or plural.

As used herein, the singular expression includes the plural expression unless the context clearly dictates otherwise. In the present application, terms such as "consisting of" or "comprising" should not be construed as necessarily including all of the various components or various steps described in the specification, and should be construed that some components or some steps may not be included, or additional components or steps may be further included.

Throughout the specification, when "A and/or B" is used, it means A, B or A and B, unless specifically stated otherwise, and when "C to D" is used, it means greater than or equal to C and smaller than or equal to D unless specifically stated otherwise.

Throughout the specification, "up-down direction" means the up-down direction of the cooking appliance in a state in which the cooking appliance is installed for daily use. "Left-right direction" means a direction perpendicular to the up-down direction, and the front-rear direction means a direction perpendicular to both the up-down direction and the left-right direction. "Bilateral direction" or "lateral direction" has the same meaning as the left-right direction, and these terms may be used interchangeably in the present specification.

<FIG> is a perspective view showing a cooking appliance according to one embodiment. <FIG> is a view showing a state in which a door <NUM> in <FIG> has been opened.

The cooking appliance according to the embodiment may be disposed at a location spaced apart from a heating cooking device in an up-down direction above a location where the heating cooking device, for example, a heating-type oven, a gas range, etc. is disposed.

The placement of the cooking appliance can allow a user to conveniently use cooking devices including the cooking appliance. In addition, the cooking appliance may serve as a hood of the heating cooking device disposed thereunder. In this case, the cooking appliance may be provided with parts for use as a hood.

The cooking appliance may cook food using microwaves, and/or heater heat, which are type(s) of electromagnetic waves. The cooking appliance may include a main body <NUM> in which a cavity <NUM> is formed, and a door <NUM> that opens and closes the cavity <NUM>.

Food to be cooked may be placed in the cavity <NUM>. The door <NUM> may be disposed in front of the cavity <NUM> and rotatably mounted on the main body <NUM> to open and close the cavity <NUM>.

A vent hole <NUM> for discharging the air sucked in by a suction unit (not shown) provided on a lower portion of the main body <NUM> to the outside may be provided in an upper portion of the main body <NUM>. The suction unit may be provided at a lower portion of the main body <NUM> of the cooking appliance. Accordingly, the cooking appliance may serve as a hood for sucking the air discharged from the heating cooking device disposed thereunder to discharge the air to the outside.

The main body <NUM> may further include a front panel <NUM> provided on an edge of the entrance of the cavity <NUM>, and having one surface disposed to face the inside of the doorwhen the door <NUM> is closed to close the cavity <NUM>.

The front panel <NUM> may be provided to surround the edge of the entrance of the cavity <NUM> and may have a predetermined width. Accordingly, when the door <NUM> is closed, the edge portion of the door <NUM> and the cavity <NUM> may overlap each other.

This structure can allow the front panel <NUM> to seal the cavity <NUM> in a state in which the door <NUM> is closed, thereby suppressing the oil, moisture, oil mist, etc. generated in the process of cooking food placed in the cavity <NUM> from being discharged to the outside through an inlet of the cavity <NUM>.

<FIG> is a perspective view showing the door <NUM> of the cooking appliance according to one embodiment. <FIG> is a view of <FIG> from another direction. <FIG> is a rear view of the door <NUM>. <FIG> is an exploded perspective view showing a part of the door <NUM> according to one embodiment. <FIG> is a view of <FIG> from another direction.

The door <NUM> may include a display module <NUM>, a cooling flow path unit <NUM>, and a shielding unit <NUM>. The display module <NUM> may be disposed in front of the door <NUM>, and the user may see the inside of the cavity <NUM> of the cooking appliance through the display module <NUM>.

The cooling flow path unit <NUM> may be disposed behind the display module <NUM>, and a flow path through which air for cooling flows may be formed therein. The air flowing into the door <NUM> may flow into the door <NUM> through the cooling flow path unit <NUM> to cool the door <NUM>.

The shielding unit <NUM> may be disposed behind the cooling flow path unit <NUM>, and may shield electromagnetic waves generated from the main body <NUM>. The shielding unit <NUM> may protect the user by blocking the electromagnetic waves generated in the cavity <NUM> and propagating to the outside of the cooking appliance.

For example, the shielding unit <NUM> may serve to block the electromagnetic waves (microwaves) generated to cook food in the main body <NUM> from being discharged to the outside of the door <NUM>. In case another heater is used, the shielding unit <NUM> may just block the heat from being transferred to the outside and/or to the display module <NUM>.

The cooling flow path unit <NUM> may be provided to cool electronic components mounted inside the door <NUM>, including a display unit <NUM> mounted on the display module <NUM>. The air for cooling the door <NUM> may flow inside the cooling flow path unit <NUM>. The display unit <NUM> may be formed in a thin shape and provided so that an area of the display unit <NUM> occupies most of one surface of the door <NUM>.

Accordingly, the display unit <NUM> can be formed to occupy most of the area of the front portion of the door <NUM>, and the placement area of the display unit <NUM> can be increased, thereby improving user visibility. The user may conveniently check various types of information through the display unit <NUM> provided with a large screen.

Since the size of the display unit <NUM> is increased, the amount of heat generated by the large display may increase. Accordingly, the display unit <NUM> in the door <NUM> needs to be effectively cooled. In the embodiment, the cooling flow path unit <NUM> through which the cooling air flows may be separately provided.

The cooling flow path unit <NUM> may be disposed behind the display unit <NUM> so that cooling air flows, and thus the display unit <NUM> may be effectively cooled by the air flowing through the cooling flow path unit <NUM>. In addition, a heat-generating part mounted on the display module <NUM> may be cooled by the air flowing through the cooling flow path unit <NUM>. In other words, the cooling flow path unit <NUM> may cool the display module <NUM> provided with the display unit <NUM> and other various heat-generating parts.

In order to effectively cool the display unit <NUM>, the entire display unit <NUM> may be provided to be exposed to the air flowing through the cooling flow path unit <NUM>. So, the display unit <NUM> is cooled from its backside. In addition, the airflow discharged to the outside of the door <NUM> through the cooling flow path unit <NUM> may form an air curtain to block heat and oil mist rising from the heating cooking device disposed below the cooking appliance.

To this end, the air flowing through the cooling flow path unit <NUM> may be branched inside the cooling flow path unit <NUM> to be discharged to the top and bottom of the display module <NUM>.

The cooling air is branched inside the cooling flow path unit <NUM> and discharged to the top and bottom of the display module <NUM>, so that the cooling air can flow while in contact with the entire rear surface of the display unit <NUM> to effectively cool the display unit <NUM>.

In addition, the cooling air is discharged to each of the top and bottom of the display module <NUM> to effectively form the air curtain around the display and the door <NUM>, so that the heat and oil mist rising from the heating cooking device disposed below the cooking appliance can be effectively blocked by the air curtain.

The display module <NUM> may be provided with the display unit <NUM>, at least one camera, and other electronic parts, and the cooling flow path unit <NUM> may be provided with electronic parts such as a blowing device <NUM> operated by a motor. Accordingly, the shielding unit <NUM> configured to shield the generated electromagnetic waves or heat from the main body may be provided behind the cooling flow path unit <NUM> in order to protect the user and the electronic parts from electromagnetic waves or heat.

The display unit <NUM> and various electronic parts may be disposed in the display module <NUM>, the cooling flow path unit <NUM> in which the flow path of the air for cooling the display module <NUM> is formed may be disposed behind the display module <NUM>, and the shielding unit <NUM> configured to shield electromagnetic waves from reaching the electronic parts provided in the display module <NUM> may be disposed behind the cooling flow path unit <NUM>.

In the embodiment, the display module <NUM> configured to provide various types of information and convenience to the user may be disposed on the front surface of the cooking appliance, that is, on the front of the door <NUM>. In addition, in the embodiment, there is a need for a structure that effectively cools the parts such as the display unit <NUM> provided in the display module <NUM>, effectively cools the inside of the door <NUM> provided with the display unit <NUM> and the like, and at the same time, forms the flow path of the cooling air for forming the air curtain around the door <NUM>, and also protects the electronic parts mounted on the door <NUM> from electromagnetic waves.

In order to satisfy this need, the display module <NUM> may be disposed at the front of the door <NUM>, the cooling flow path unit <NUM> may be disposed behind the display module <NUM>, and the shielding unit <NUM> may be disposed behind the cooling flow path unit <NUM>.

In other words, in order to implement the door structure according to the above-described embodiment, the display module <NUM>, the cooling flow path unit <NUM>, and the shielding unit <NUM> that play their own roles may be sequentially disposed on the door <NUM> from the front to rear in the door <NUM>.

In addition, the display module <NUM>, the cooling flow path unit <NUM>, and the shielding unit <NUM> may be provided to be stably and tightly coupled to each other to prevent the cooling air from flowing out to the outside of the door <NUM> through other portions other than a first outlet <NUM> disposed at an upper portion of the display module <NUM> and a second outlet <NUM> at a lower portion of the display module <NUM>. Hereinafter, the door <NUM> implemented using the above-described structure will be described in detail.

The display module <NUM> may include the first outlet <NUM> and the second outlet <NUM>. The first outlet <NUM> may be disposed at the upper portion of the display module <NUM>, and the air flowing inside the display module <NUM> may be discharged to the outside through the first outlet <NUM>. So, the first outlet <NUM> is arranged above display unit <NUM> and the second outlet <NUM> is arranged below the display unit <NUM>. The first outlet <NUM> and/or second outlet <NUM> extend in width or horizontal direction of the door.

The second outlet <NUM> may be disposed at the lower portion of the display module <NUM>, and the air flowing inside the display module <NUM> may be discharged to the outside through the second outlet <NUM>. In other words, the air flowing inside the door <NUM> may be discharged to the outside through the first outlet <NUM> and the second outlet <NUM> respectively disposed at the upper and lower portions of the door <NUM>, so that the air can flow through the entire inside of the door <NUM> to effectively cool the entire door <NUM>.

The display module <NUM> may include the display unit <NUM> and an outer panel <NUM>. The display unit <NUM> may be disposed on the front surface of the door <NUM> to display videos or images.

The display unit <NUM> may display information necessary for cooking to provide the information to the user. In addition, the display unit <NUM> may also serve to receive a user's input command, e.g. in a touch recognition method or via speech input.

Meanwhile, the display unit <NUM> or the door <NUM> may be connected to communicate with other home appliances, and cameras, locks, etc. provided in the front door. In addition, the display unit <NUM> may be connected to communicate with an external device as serve as a communication terminal for the user.

The user may receive information necessary for operations of one or more home appliances, visits by outsiders, and other aspects of daily life from the display unit <NUM>, and transmit commands to one or more home appliances and other devices connected to the display unit <NUM> using the display unit <NUM>.

Accordingly, the door <NUM> including the display unit <NUM> may serve as a kind of Internet of Things hub that transmits information about home appliances and other devices necessary for daily life to the user, and transmits the user's commands to these devices. So the door <NUM> may be used to input messages to be sent to other devices.

The outer panel <NUM> may be disposed behind the display unit <NUM>, and the display unit <NUM> may be mounted thereon. The outer panel <NUM> may form an outer shape of the door <NUM>. The outer panel <NUM> may have a hollow/opening <NUM> and may be provided in a shape having a predetermined width in the front-rear direction of the door <NUM>.

The hollow/opening <NUM> of the outer panel <NUM> may be closed by the rear surface of the display unit <NUM>. The air flowing inside the outer panel <NUM> may collide with the rear surface of the display unit <NUM> exposed to the hollow/opening <NUM> of the outer panel <NUM>. Accordingly, the air flowing inside the outer panel <NUM> may come into contact with the rear surface of the display unit <NUM> to cool the display unit <NUM>.

In addition, the air passing through a blowing fan <NUM> may be exposed to the hollow/opening <NUM> of the outer panel <NUM> to cool heat-generating parts such as a speaker <NUM>, a microphone <NUM>, a communication unit <NUM>, and a control board <NUM> to be disposed.

Since the outer panel <NUM> has the above-described structure, the outer panel <NUM> may have an interior space, and various parts may be accommodated or built in in the interior space. A width in the front-rear direction of the door <NUM> may be substantially determined by the outer panel <NUM>.

A first aperture <NUM> into which air flows may be formed in an upper end of the outer panel <NUM>. A plurality of first apertures <NUM> may be provided. Each of the first apertures <NUM> may be provided so that a plurality of slit-shaped holes are arranged at intervals. This structure can somewhat suppress foreign substances from flowing into the door <NUM> through the first aperture <NUM>.

A handle <NUM> may be provided on one side of the outer panel <NUM> to be used when the user opens and closes the door <NUM>. The handle <NUM> may be formed, for example, by recessing a side or lateral portion of the outer panel <NUM>.

A button device <NUM> may be mounted on one lateral side of the outer panel <NUM>, for example, just below a location where the handle <NUM> is formed. However, the button may be disposed at any other location of the door being accessible by the user. The user may supply or switch on electricity to the cooking appliance or cut off the electricity supply by manipulating the button device <NUM>. Specific manipulation for the operation of the cooking appliance is possible by inputting commands into the display unit <NUM> having a touch screen as user input.

The outer panel <NUM> may support various parts such as the display unit <NUM>, the speaker <NUM>, the microphone <NUM>, the communication unit <NUM>, and the control board <NUM>, and may be formed with the first aperture <NUM> into which external air flows, and the first outlet <NUM> and the second outlet <NUM> through which air is discharged.

Meanwhile, the door <NUM> may be provided with at least one camera. The images captured by the camera may be reproduced on the display unit <NUM>, and the user may view images, e.g. from inside the cavity <NUM> or of the lower portion of the cooking appliance through the display unit <NUM>. The camera may include a first camera <NUM>, a second camera <NUM>, and a third camera <NUM>.

The first camera <NUM> may be mounted on a lower portion of the outer panel <NUM> to capture a state of the lower portion of the door <NUM>. Since the first camera <NUM> is mounted on the lower portion of the outer panel <NUM> so that a gaze direction faces the lower portion of the cooking appliance, the first camera <NUM> may capture the heating cooking device disposed below the cooking appliance.

The user may observe the state of the heating cooking device and the state of food being cooked on the heating cooking device by the image captured by the first camera <NUM> and reproduced on the display unit <NUM>.

The second camera <NUM> may be disposed on the upper front portion of the door <NUM> and may capture the area in front of the door <NUM>. The second camera <NUM> may capture the area in front of the cooking appliance.

The second camera <NUM> may be provided to capture or pass through a baffle <NUM> and a front cover <NUM>, which will be described below. The user may observe the situation in front of the cooking appliance captured and recorded by the second camera <NUM>.

Meanwhile, the second camera <NUM> may capture the user/area in front of the cooking appliance. Accordingly, the second camera <NUM> may be used for the user to make a video call with other people in a remote location outside the front door using the display unit <NUM>.

The third camera <NUM> may be mounted on a plate <NUM> to be described below, may be disposed to face the cavity <NUM>, and may capture the cavity <NUM>. In other words, the gaze of the third camera <NUM> may be provided to face the cavity <NUM> to capture the situation of the cavity <NUM>. The user may observe a situation in which food is cooked in the cavity <NUM> through the image captured by the third camera <NUM>.

The door <NUM> may include a human detection unit <NUM> disposed on the door, e.g. the upper portion of the door <NUM> or any other suitable location, mounted by passing through the baffle <NUM> and the front cover <NUM>, preferably disposed at a location spaced apart from the second camera <NUM>, and configured to detect the presence of the user in front of the cooking appliance.

The human detection unit <NUM> may detect whether there is a person in front of the door <NUM> by, for example, infrared recognition or gesture recognition. A control unit provided in the cooking appliance may identify whether there is a user in front of the cooking appliance through the human detection unit <NUM>.

When there is a user, for example, the control unit may operate the display unit <NUM> to activate the functions of the cooking appliance necessary for the user's convenience and safety by taking an action to enable the user to use the display unit <NUM> immediately.

The door <NUM> may include a latch <NUM> mounted on a side of the plate <NUM>, and having a part formed to protrude from the plate <NUM>. The latch <NUM> may be formed in a structure that is caught in a groove formed in a front panel <NUM> of the door <NUM>. The latch <NUM> may stably maintain the closed state of the door <NUM>.

<FIG> is an exploded perspective view of the door <NUM> according to one embodiment. <FIG> is a view of <FIG> from another direction. The cooling flow path unit <NUM> may include an inner panel <NUM>, an air guide <NUM>, and a blowing device <NUM>.

The inner panel <NUM> may be disposed behind the outer panel <NUM> and mounted on the outer panel <NUM>. The air guide <NUM> to be described below may be mounted on the inner panel <NUM>. The inner panel <NUM> along with the air guide <NUM> may form a space in which the air sucked into the door <NUM> flows. The inner panel <NUM> may be mounted with the air guide <NUM> and coupled to the plate <NUM> to provide the space in which the air flowing into the door <NUM> flows.

The air guide <NUM> may be disposed between the outer panel <NUM> and the inner panel <NUM>, and coupled to the inner panel <NUM>. The air guide <NUM> may guide the flow of air flowing into the door <NUM> from the outside, and form the space in which the air may flow.

The blowing device <NUM> may be mounted on the air guide <NUM>. The blowing device <NUM> may forcibly flow the air flowing into the air guide <NUM> from the rear to the front of the air guide <NUM>.

The shielding unit <NUM> may include the plate <NUM> and the choke member <NUM>. The plate <NUM> may be disposed behind the inner panel <NUM>, may be coupled to the inner panel <NUM>, and may have one side rotatably coupled to the main body <NUM>. When the plate <NUM> rotates, the door <NUM> may be rotated to open and close the cavity <NUM> of the cooking appliance.

The plate <NUM> may be coupled to the inner panel <NUM> to form a flow path of air for cooling and at the same time, may form an inner surface of the door <NUM> with a shielding structure for preventing the leakage of electromagnetic waves, that is, the choke member <NUM>.

The choke member <NUM> may be disposed behind the plate <NUM>, may be coupled to the plate <NUM>, and may block the electromagnetic waves generated from the main body <NUM> from being discharged to the outside. The choke member <NUM> may be generally provided in a quadrangular shape having a hollow/opening, and provided to surround an edge portion of the plate <NUM>.

The display module <NUM> may further include the baffle <NUM> and/or the front cover <NUM>. The baffle <NUM> may be disposed in front of the display unit <NUM>, may surround the edge of the display unit <NUM>, and may be coupled to the outer panel <NUM> to mount the display unit <NUM> on the outer panel <NUM>.

The baffle <NUM> is generally formed in a quadrangular shape having a hollow to surround the edge of the display unit <NUM>, and thus may serve as a bezel of the display unit <NUM>.

The front cover <NUM> may be disposed in front of the baffle <NUM>, and provided to surround the edge of the baffle <NUM>. The front cover <NUM> may be generally formed in a quadrangular shape having a hollow, and may serve to stably couple the display unit <NUM> and the baffle <NUM> to the outer panel <NUM>.

<FIG> is a side cross-sectional view of the door <NUM> according to one embodiment. <FIG> is a perspective view showing the outer panel <NUM> according to one embodiment. <FIG> is a rear view showing the outer panel <NUM> according to one embodiment. <FIG> is a view of <FIG> from another direction. <FIG> is an exploded perspective view of the display unit <NUM> and the outer panel <NUM>. <FIG> is a view showing the inner panel <NUM> and the air guide <NUM> according to one embodiment.

Referring to <FIG>, the outer panel <NUM> may include the speaker <NUM>, the microphone <NUM>, and the communication unit <NUM>. At least one speaker <NUM> may be mounted on the side of the outer panel <NUM>. The speaker <NUM> may generate a voice, an alarm sound, etc. necessary for operating the cooking appliance.

In addition, the speaker <NUM> may generate or output all voices, alarm sounds, etc. for the door <NUM> including the display unit <NUM> of the door <NUM> to serve as an Internet of Things hub.

The user may input voice commands to operate the cooking appliance through the microphone <NUM>. In addition, the microphone <NUM> may play a part of the role for the door <NUM> to serve as an Internet of Things hub.

The communication unit <NUM> may be mounted on the outer panel <NUM> at a location spaced apart from the speaker <NUM> and the microphone <NUM>. Since the door <NUM> serves as an Internet of Things hub, the communication unit <NUM> provided in the door <NUM> is appropriately provided to perform various types of wired or wireless communication functions.

Accordingly, a plurality of communication units <NUM> may be provided, and each communication unit <NUM> may be provided as a device corresponding to a different communication method.

For example, the communication unit <NUM> may be provided as a wireless communication device, and each communication unit <NUM> may be provided as any one of a ZigBee communication device, a Wi-Fi communication device, a jet wave communication device, and a Bluetooth communication device. However, the communication method of the communication unit <NUM> is not limited thereto, and the communication unit <NUM> may also be provided as a wired communication device.

Meanwhile, the control board <NUM> for controlling the cooking appliance may be mounted on the outer panel <NUM>. A control unit configured to control the cooking appliance may be implemented on the control board <NUM>.

The outer panel <NUM> may be provided with a holder 120a, an opening hole 120b, a first through hole 120c, a second through hole 120d, a mounting guide 120e, and a fitting projection 120f.

The holder 120a may be provided to support the speaker <NUM>. The holder 120a may be formed to protrude from an inner wall of the outer panel <NUM>, a part of which may have an arc shape to correspond to a circular shape of the speaker <NUM>.

The speaker <NUM> may be mounted on the holder 120a and provided on the outer panel <NUM>. Since a pair of speakers <NUM> are provided, a pair of holders 120a may also be provided and formed at a location corresponding to each of the pair of speakers <NUM>.

The opening hole 120b may be formed to pass through the bottom of the outer panel <NUM>. The first camera <NUM> may be disposed at a location adjacent to the opening hole 120b to be able to view the lower side of the outer panel <NUM> through the opening hole 120b.

The first through hole 120c may be formed in the side of the outer panel <NUM>. The first through hole 120c may be provided adjacent to a location where the speaker <NUM> is disposed. The first through hole 120c may allow the speaker <NUM> to communicate with the outside and at the same time, may be formed in a mesh shape in order to suppress the speaker <NUM> from being exposed to the outside.

The speaker <NUM> may communicate with the outside of the outer panel <NUM> through the first through hole 120c to effectively transmit an alarm and other voices to the user. Since a pair of speakers <NUM> are provided, a pair of first through holes 120c may also be provided and formed at a location corresponding to each of the pair of speakers <NUM>.

The second through hole 120d may be formed in a lower portion of one side of the outer panel <NUM> to pass through the outer panel <NUM>. A part of the button device <NUM> mounted inside the outer panel <NUM> through the second through hole 120d may be exposed to the outside of the outer panel <NUM>. The user may manipulate the button device <NUM> by contacting the exposed portion of the outer panel <NUM>.

The mounting guide 120e may be formed on the inner wall of the outer panel <NUM> to support the plurality of communication units <NUM>. Accordingly, the mounting guide 120e may be provided in the same number as the plurality of communication units <NUM>. The mounting guide 120e may guide the communication unit <NUM> to be mounted on the outer panel <NUM>.

For example, the mounting guide 120e may be provided so that a projection having a shape corresponding to the edge of the communication unit <NUM> is formed on the inner wall of the outer panel <NUM>. Each of the plurality of mounting guides 120e may be provided to have a shape and size corresponding to the shape and size of each of the plurality of communication units <NUM>.

The fitting projection 120f may be formed to protrude from the inner wall of the outer panel <NUM>. A plurality of fitting projections 120f may be provided and disposed to be spaced apart from each other. The control board <NUM> may be fitted into the fitting projections 120f. For example, the fitting projection 120f may be disposed at a location adjacent to the edge of the plate-shaped control board <NUM>.

Accordingly, the control board <NUM> may have corners fitted into the fitting projections 120f and may be mounted on the outer panel <NUM>. A shape fitting structure corresponding to the shape of the control board <NUM> may be formed on the fitting projection 120f so that the corner of the control board <NUM> is fitted.

As shown in <FIG>, the first outlet <NUM> may be disposed on the upper portion of the outer panel <NUM>, and the second outlet <NUM> may be disposed on the lower portion of the outer panel <NUM>.

The first outlet <NUM> may be disposed on the upper portion of the outer panel <NUM>, and the air flowing by the blowing device <NUM> may be discharged to the outside. The second outlet <NUM> may be disposed on the lower portion of the outer panel <NUM>, and the air flowing by the blowing device <NUM> may be discharged to the outside.

Meanwhile, referring to <FIG>, when the door <NUM> is assembled, the first outlet <NUM> and the second outlet <NUM> may be partially blocked by the baffle <NUM> and the front cover <NUM>. At this time, holes for discharging air may be formed at locations corresponding to the first outlet <NUM> and the second outlet <NUM> in the baffle <NUM>.

The first outlet <NUM> may be provided at a location adjacent to an upper end of the display unit <NUM>, and the second outlet <NUM> may be provided at a location adjacent to a lower end of the display unit <NUM>. Accordingly, the air forcibly flowing inside the door <NUM> by the blowing device <NUM> may be discharged to the outside at locations adjacent to the upper and lower ends of the display unit <NUM> through the first outlet <NUM> and the second outlet <NUM>.

The air discharged through the first outlet <NUM> may form the air curtain on the upper portion of the door <NUM>. In addition, the air discharged through the second outlet <NUM> may form the air curtain on the lower portion of the door <NUM>.

The air curtain means a means for blocking the permeation of an external airflow into the door <NUM>. In the embodiment, a boundary surface or a boundary zone in which the flow of air discharged from the inside of the door <NUM> through the first outlet <NUM> and the second outlet <NUM> forms a boundary against the flow of the external air may be referred to as an air curtain.

The air curtain formed by the air discharged from the inside of the door <NUM> through the first outlet <NUM> and the second outlet <NUM> may suppress the permeation of external air into the door <NUM>.

Since the heating cooking device is disposed below the cooking appliance, the heat generated when the heating cooking device is used and the oil mist generated from the food being cooked may rise and permeate into the cooking appliance.

The heat transmitted from the heating cooking device to the cooking appliance may damage parts of the door <NUM> provided in the cooking appliance. In particular, parts in which the display unit <NUM> and circuits, elements, etc. related to its operation are embedded may be vulnerable to heat.

In addition, the oil mist transmitted from the food being cooked may be attached to the door <NUM> provided in the cooking appliance. The oil mist may be attached to the surface of the display unit <NUM> to lower the image quality of the display unit <NUM>, and attached to the surfaces of other parts mounted on the door <NUM> to damage these parts.

In the embodiment, the airflow discharged to the outside of the door <NUM> through the first outlet <NUM> and the second outlet <NUM> provided in the door <NUM> forms the air curtain, so that the heat and oil mist rising from the heating cooking device disposed below the cooking appliance can be effectively blocked by the air curtain.

Accordingly, it is possible to effectively suppress various electronic parts including the display unit <NUM> provided in the door <NUM> from being damaged or degraded by the heat and the oil mist.

Referring to <FIG>, the air guide <NUM> may include an inlet <NUM> and a mounting hole <NUM>. The inlet <NUM> may be disposed on an upper portion of the air guide <NUM>, external air may be introduced through the inlet <NUM>, and at least one inlet <NUM> may be provided.

The inlet <NUM> may be disposed at a location corresponding to the first aperture <NUM> provided on the upper portion of the outer panel <NUM>. Accordingly, the external air may pass through the first aperture <NUM> of the outer panel <NUM> to flow into the door <NUM> through the inlet <NUM>.

The mounting hole <NUM> may be formed in a lower portion of the inlet <NUM> in the air guide <NUM>, and the blowing device <NUM> may be mounted therein. The mounting hole <NUM> may be formed to pass through the air guide <NUM> in the front-rear direction of the door <NUM>.

Accordingly, air may flow from the upper portion to the lower portion of the air guide <NUM> through the inlet <NUM>, and its direction may be changed, so that the air may flow from the rear to the front of the air guide <NUM> through the mounting hole <NUM>.

The blowing device <NUM> may include a casing <NUM> and the blowing fan <NUM>. The casing <NUM> may be disposed in the mounting hole <NUM> and formed with a hollow, and the blowing fan <NUM> may be mounted in the hollow.

The blowing fan <NUM> may be rotatably mounted in the casing <NUM>, and may flow air from the rear to the front of the air guide <NUM>. The blowing fan <NUM> may receive electricity and rotate to flow air inside the door <NUM>.

By the rotation of the blowing fan <NUM>, external air may flow into the door <NUM> through the inlet <NUM>, and may be discharged to the outside of the door <NUM> through the first outlet <NUM> and the second outlet <NUM>. The mounting hole <NUM> of the air guide <NUM> may be formed in the middle of the casing <NUM> and formed to correspond to the location, area, and shape of the hollow in which the blowing fan <NUM> is disposed.

Hereinafter, the airflow inside the door <NUM> will be described in detail with reference to <FIG>. In <FIG>, the airflow is indicated by arrows.

As the blowing fan <NUM> rotates, external air may flow into the door <NUM> through the inlet <NUM> of the air guide <NUM>, and flow to be discharged to the outside of the door <NUM> through the first outlet <NUM> and the second outlet <NUM>.

The air forcibly flowing by the blowing fan <NUM> may specifically have the following flow path of the airflow.

The air may flow into the door <NUM> from the first aperture <NUM> of the outer panel <NUM> and the inlet <NUM> provided at a location corresponding thereto. The air flowing into the door <NUM> may flow downward from the door <NUM> to flow into the blowing fan <NUM>.

The air may pass through the blowing fan <NUM> in the front-rear direction of the door <NUM>. At this time, the air may pass through the mounting hole <NUM> of the air guide <NUM> while passing through the blowing fan <NUM>. The flow direction of the air in the blowing fan <NUM> may be changed from the up-down direction of the door <NUM> to the front-rear direction thereof.

Since the front of the mounting hole <NUM> is blocked by the display unit <NUM>, the air passing through the mounting hole <NUM> may be branched in the up-down direction in front of the air guide <NUM>.

A part of the branched air may flow upward from the door <NUM> and may be discharged through the first outlet <NUM>. The other part of the branched air may flow downward from the door <NUM> and may be discharged through the second outlet <NUM>.

The air branched from the first outlet <NUM> and the second outlet <NUM> may surround the entire door <NUM>. In particular, the branched air may surround the front surface of the door <NUM>. This structure can allow the air discharged from the first outlet <NUM> and the second outlet <NUM> to form the air curtain on the door <NUM>, thereby effectively suppressing the heat and oil mist generated from the heating cooking device disposed below the cooking appliance from permeating into the door <NUM>.

Meanwhile, at least a part of the air discharged from the first outlet <NUM> may come into contact with the front surface of the display unit <NUM> while moving downward by gravity to cool the display unit <NUM>.

In addition, the above-described airflow structure inside the door <NUM> may allow the air flowing into the door <NUM> to flow through the entire inside of the door <NUM>. For example, the air may flow in the entire space formed by the rear surface of the display unit <NUM> and the outer panel <NUM>.

Accordingly, the air flowing inside the door <NUM> may cool the entire rear surface of the display unit <NUM>, and effectively cool the outer panel <NUM> and other parts mounted on other portions of the door <NUM>.

In particular, the outer panel <NUM> may be provided with parts that generate heat, such as the speaker <NUM>, the microphone <NUM>, the communication unit <NUM>, and the control board <NUM>. These heat-generating parts may be disposed over the entire outer panel <NUM>. Accordingly, the air may flow through the entire inside of the outer panel <NUM>, thereby effectively cooling these heat-generating parts.

As shown in <FIG>, the first aperture <NUM> and the inlet <NUM> into which air flows may communicate with each other. As the blowing fan <NUM> rotates, the external air may flow into the air guide <NUM> through the first aperture <NUM> and the inlet <NUM> to flow toward the blowing device <NUM> through the space formed by the inner panel <NUM> and the air guide <NUM>.

The air may flow toward the blowing fan <NUM> of the blowing device <NUM> in the space formed by the plate <NUM>. The air may pass through the blowing fan <NUM> and collide with the rear surface of the display unit <NUM> disposed to face the blowing fan <NUM> to cool the display unit <NUM>.

After the air passing through the blowing fan <NUM> collides with the rear surface of the display unit <NUM>, the flow may be branched in the upward and downward direction of the display unit <NUM>. The air directed to the upper side of the display unit <NUM> may be discharged to the outside of the door <NUM> through the first outlet <NUM> provided on the upper portion of the outer panel <NUM>. The air flowing downward from the display unit <NUM> may be discharged to the outside of the door <NUM> through the second outlet <NUM> provided on the lower portion of the outer panel <NUM>.

In the embodiment, the air flowing inside the door <NUM> can cool the entire front surface of the display unit <NUM> while being discharged through the first outlet <NUM>. In addition, the air flowing inside the door <NUM> can effectively cool the heat-generating parts mounted on the rear surface of the display unit <NUM> and inside the door <NUM>.

<FIG> is an exploded perspective view of <FIG>. <FIG> is a view of <FIG> from another direction. <FIG> is an exploded perspective view of the plate <NUM> and the choke member <NUM> according to one embodiment. <FIG> is a view of <FIG> from another direction.

Referring to <FIG>, the mounting hole <NUM> may be formed in the middle of the air guide <NUM>. The casing <NUM> has a hollow having a location, size, and shape corresponding to the mounting hole <NUM>, and the blowing fan <NUM> may be disposed in the hollow. The casing <NUM> may be disposed at a location corresponding to the hollow and the mounting hole <NUM> of the air guide <NUM> and mounted on one surface of the air guide <NUM>.

A hollow 130a may be formed in the inner panel <NUM>. Since the hollow 130a of the inner panel <NUM> is blocked by the plate <NUM>, the air introduced through the inlet <NUM> may not leak into the hollow 130a of the inner panel <NUM>. Accordingly, the inner panel <NUM> and the plate <NUM> together may form a flow path of the air through which the air cooling the inside of the door <NUM> flows.

The air guide <NUM> may include an upper portion 140a in which the inlet <NUM> is formed and a lower portion 140b in which the blowing device <NUM> is disposed. When the air guide <NUM> and the inner panel <NUM> are coupled, the lower portion 140b may be generally disposed at a location corresponding to the hollow 130a of the inner panel <NUM>.

When looking down at the air guide <NUM> from the upper portion of the door <NUM>, a cross-sectional area of the upper portion 140a of the air guide <NUM> may be formed to be greater than a cross-sectional area of the lower portion 140b. As the cross-sectional area of the upper portion 140a is expanded, the cross-sectional area of the inlet <NUM> may also be expanded. Accordingly, in the air guide <NUM>, as the inlet <NUM> through which air is introduced is expanded, external air may be easily introduced into the air guide <NUM>.

Meanwhile, the lower portion 140b of the air guide <NUM> has a smaller cross-sectional area than that of the upper portion 140a, but since the lower portion 140b of the air guide <NUM> corresponds to the hollow 130a of the inner panel <NUM>, the airflow space in the portion corresponding to the lower portion 140b may be expanded toward the plate <NUM> by the hollow 130a of the inner panel <NUM>. As a result, the lower portion 140b of the air guide <NUM> may also have a shape in which the airflow space is expanded by the hollow 130a of the inner panel <NUM>.

In other words, the lower portion 140b of the air guide <NUM> corresponding to the hollow 130a of the inner panel <NUM> is formed to have a smaller cross-sectional area than that of the upper portion 140a of the air guide <NUM>, but the flow space of the lower portion 140b of the air guide <NUM> may be expanded to the plate <NUM> by the hollow 130a of the inner panel <NUM>.

Accordingly, the upper portion 140a and the lower portion 140b of the air guide <NUM> may have the shape of an expanded cross-sectional area due to the above-described structure. Accordingly, the airflow space formed by coupling the air guide <NUM> and the inner panel <NUM> in the structure in which the air guide <NUM> and the inner panel <NUM> are coupled may be sufficiently wide, and the air may be smoothly introduced from the outside and may also smoothly pass through the blowing device <NUM> mounted on the lower portion 140b of the inner panel <NUM>.

In addition, due to the decrease in the cross-sectional area of the lower portion 140b of the air guide <NUM>, conversely, the space in which the air passing through the blowing device <NUM> is discharged from the lower portion 140b of the air guide <NUM> may be expanded. At this time, the air passing through the blowing device <NUM> may pass through the hollow <NUM> of the outer panel <NUM> and come into contact with the display unit <NUM> to cool the display unit <NUM>.

The above-described structure can allow the door <NUM> to have a slim overall structure and increase the flow rate of air flowing therein, thereby improving the cooling efficiency of the door <NUM>.

<FIG> is an enlarged view of a portion A of <FIG>. <FIG> is a view of <FIG> from another direction. <FIG> is a cross-sectional perspective view taken along a portion L of <FIG>.

<FIG> is an exploded view showing a state in which the microphone <NUM> is disassembled from the door <NUM>.

The outer panel <NUM> includes an upper plate <NUM> and a support member <NUM>. The upper plate <NUM> has the microphone <NUM> disposed on a lower side, and block the microphone <NUM> from being exposed to the outside. The microphone <NUM> is mounted on the lower side of the upper plate <NUM> of the outer panel <NUM> and protected by the upper plate <NUM>.

The support member <NUM> supports the microphone <NUM> to maintain the state of being in contact with a lower surface of the upper plate <NUM>. The support member <NUM> and the upper plate <NUM> are spaced apart from each other in the up-down direction of the door <NUM>, and the plate-shaped microphone <NUM> may be stably mounted in a space formed thereby.

The support member <NUM> may include a first support portion <NUM> and a second support portion <NUM>. A pair of first support portions <NUM> may be provided to support both ends of the microphone <NUM>. The second support portion <NUM> may be disposed between the pair of first support portions <NUM>, and disposed to be spaced apart from the first support portions <NUM>. A plurality of second support portions <NUM> may be provided, and disposed to be spaced apart from each other.

The first support portion <NUM> and the second support portion <NUM> may be spaced apart from each other in both side directions of the outer panel <NUM> and disposed in a line. Accordingly, the microphone <NUM> may be stably mounted on the outer panel <NUM> by the first support portion <NUM> and the second support portion <NUM>.

The first support portion <NUM> may be integrally formed with the outer panel <NUM>, and may include a first connection portion 1261a and a first guide rail 1261b. The first connection portion 1261a may be formed to protrude from the lower surface of the upper plate <NUM> and an inner wall of the outer panel <NUM>.

The first guide rail 1261b may protrude from the first connection portion 1261a, and have an upper surface disposed to be spaced apart from the lower surface of the upper plate <NUM> to form a space in which the microphone <NUM> is fitted.

The second support portion <NUM> may be integrally formed with the outer panel <NUM>, and may include a second connection portion 1262a and a second guide rail 1262b. The second connection portion 1262a may be formed to protrude from the lower surface of the upper plate <NUM> and the inner wall of the outer panel <NUM>.

The second guide rail 1262b may protrude from the second connection portion 1262a, and have an upper surface formed to have a stepped portion with the second connection portion 1262a to form a space in which the microphone <NUM> is fitted between the upper surface and the lower surface of the upper plate <NUM>.

Due to this structure, the plate-shaped microphone <NUM> may be mounted in a space formed by the first support portion <NUM> and the second support portion <NUM> to be stably supported by the first support portion <NUM> and the second support portion <NUM>.

<FIG> is a perspective view showing the microphone <NUM> according to one embodiment. <FIG> is a view of <FIG> from another direction. The microphone <NUM> may be formed to include a thin circuit board unit <NUM>.

The microphone <NUM> may include the circuit board unit <NUM>, a first buffering portion <NUM>, and a second buffering portion <NUM>. A circuit and various active and passive elements may be provided in the circuit board unit <NUM>. A socket <NUM> in which a cable is detachably mounted for power connection and communication may be formed on a lower surface of the circuit board unit <NUM>. In addition, a circuit element <NUM> having a volume may be mounted on the lower surface of the circuit board unit <NUM>.

The first buffering portion <NUM> and the second buffering portion <NUM> may be made of, for example, a rubber material to buffer an external shock applied to the microphone <NUM>.

The first buffering portion <NUM> may be attached to one surface of the circuit board unit <NUM>, and may be in contact with the lower surface of the upper plate <NUM> when the microphone <NUM> is mounted on the outer panel <NUM>. Accordingly, when an external shock is applied to the microphone <NUM> and the upper plate <NUM> of the outer panel <NUM> and the microphone <NUM> collide, the shock may be buffered by the first buffering portion <NUM>.

The second buffering portion <NUM> may be attached to the other surface of the circuit board unit <NUM>, and may be in contact with the upper surface of the first guide rail 1261b when the microphone <NUM> is mounted on the outer panel <NUM>. Accordingly, when an external shock is applied and the microphone <NUM> and the first guide rail 1261b collide, the shock may be buffered by the first buffering portion <NUM>.

The circuit element <NUM> having a volume mounted on the circuit board unit <NUM> may be disposed at a location avoiding a location where the second buffering portion <NUM> and the first guide rail 1261b are in contact with each other.

The first buffering portion <NUM> may be provided to be distributed over the entire one surface of the circuit board unit <NUM>, and the second buffering portion <NUM> may be disposed at a location corresponding to the first guide rail 1261b.

Since the microphone <NUM> faces the upper plate <NUM> of the outer panel <NUM> as a whole, the microphone <NUM> and the upper plate <NUM> may be in full contact with each other when they collide due to an external shock. Accordingly, it is reasonable that the first buffering portion <NUM> is distributed over the entire one surface of the circuit board unit <NUM> for buffering.

Since the lower surface of the microphone <NUM> faces the first guide rail 1261b, the second buffering portion <NUM> may be disposed at a location corresponding to the first guide rail 1261b for buffering when the microphone <NUM> and the first guide rail 1261b collide due to an external shock.

Since the second buffering portion <NUM> is formed to have a predetermined thickness, the lower surface of the microphone <NUM> and an upper surface of the second guide rail 1262b of the second support portion <NUM> may be spaced apart from each other when the microphone <NUM> is mounted on the outer panel <NUM>. Accordingly, a collision between the microphone <NUM> and the second guide rail 1262b may be suppressed.

The circuit board unit <NUM> may have second apertures <NUM> formed at both ends, and the second buffering portion <NUM> may be provided in a shape that surrounds the edge of the second aperture <NUM> and corresponds to the second aperture <NUM>.

The second aperture <NUM> may serve as, for example, a via hole in which a conductive wire electrically connecting both surfaces of the circuit board unit <NUM> is formed. Meanwhile, the first buffering portion <NUM> may be formed with an escape groove <NUM> in a portion corresponding to the second aperture <NUM> so that the second aperture <NUM> is not blocked.

The first buffering portion <NUM> and the second buffering portion <NUM> may be attached to the circuit board unit <NUM> using an adhesive or the like in order to firmly couple the first buffering portion <NUM> and the second buffering portion <NUM> to the circuit board unit <NUM>.

The first buffering portion <NUM> may be provided with a through portion <NUM> formed to pass through the first buffering portion <NUM>, and the circuit board unit <NUM> may be provided with an insertion protrusion <NUM> formed to protrude from one surface, and inserted into the through portion <NUM>. A plurality of through portions <NUM> and a plurality of insertion protrusions <NUM> may be provided, and provided in a number corresponding to each other.

The insertion protrusion <NUM> of the circuit board unit <NUM> may be fitted into the through portion <NUM> of the first buffering portion <NUM>, thereby suppressing the first buffering portion <NUM> and the second buffering portion <NUM> from being separated from the circuit board unit <NUM> as the first buffering portion <NUM> is pushed in the lateral direction of the circuit board unit <NUM>. Accordingly, the first buffering portion <NUM> and the second buffering portion <NUM> may be more stably coupled to the circuit board unit <NUM> to protect the circuit board unit <NUM> from an external shock.

<FIG> is a view showing a state in which the microphone <NUM> is mounted on the door <NUM> in <FIG>. <FIG> is a view showing a state in which the outer panel <NUM> and the inner panel <NUM> are coupled in <FIG>.

The inner panel <NUM> includes a fixing member <NUM> formed to protrude from the end of the inner panel <NUM>, and is in contact with a part of the microphone <NUM> to fix the location of the microphone <NUM> when the inner panel <NUM> and the outer panel <NUM> are coupled. A plurality of fixing members <NUM> may be provided to be disposed at locations spaced apart from each other.

When the microphone <NUM> is mounted on the outer panel <NUM> and then the inner panel <NUM> is coupled to the outer panel <NUM>, the fixing member <NUM> of the inner panel <NUM> may come into contact with a side of the microphone <NUM>, and accordingly, the microphone <NUM> may be stably mounted on the door <NUM>.

The fixing member <NUM> may prevent the microphone <NUM> from being separated from the mounting location of the outer panel <NUM>. Accordingly, the microphone <NUM> may be stably mounted on the door <NUM> without using a separate fastening tool such as a bolt.

The fixing member <NUM> may include a first piece <NUM> and a second piece <NUM>. The first piece <NUM> may protrude from the inner panel <NUM>, and a part thereof may support the side surface of the microphone <NUM>. The second piece <NUM> may protrude from the first piece <NUM>, and a part thereof may support the lower surface of the microphone <NUM>.

Referring to <FIG>, the fixing member <NUM> may be formed so that a width of the second piece <NUM> is smaller than a width of the first piece <NUM> to form a stepped surface <NUM> at a boundary between the first piece <NUM> and the second piece <NUM>, and the stepped surface <NUM> may be provided to support the side and lower surfaces of the microphone <NUM>.

When the inner panel <NUM> is coupled to the outer panel <NUM>, the side of the microphone <NUM> may be fitted into the space formed by the stepped surface <NUM>, and accordingly, the microphone <NUM> may be supported by the first piece <NUM> and the second piece <NUM>.

Claim 1:
A cooking appliance comprising a main body (<NUM>) formed with a cavity (<NUM>), and a door (<NUM>) for opening and closing the cavity (<NUM>), wherein the door (<NUM>) includes:
an outer panel (<NUM>) forming an outer shape of the door (<NUM>);
an inner panel (<NUM>) disposed behind the outer panel (<NUM>) and mounted on the outer panel (<NUM>); and
a microphone (<NUM>) mounted on or at a top portion of the door (<NUM>), and
wherein the microphone (<NUM>) is disposed between the outer panel (<NUM>) and the inner panel (<NUM>),
wherein the outer panel (<NUM>) includes a support member (<NUM>) configured to support the microphone (<NUM>),
characterized in that
the inner panel (<NUM>) includes a fixing member (<NUM>) that protrudes from an end of the inner panel (<NUM>) and contacts a part of the microphone (<NUM>) to fix a location of the microphone (<NUM>) when the inner panel (<NUM>) and the outer panel (<NUM>) are coupled,
wherein the outer panel (<NUM>) includes an upper plate (<NUM>) having the microphone (<NUM>) disposed on a lower side of the upper plate (<NUM>), and
wherein the support member (<NUM>) is configured to support the microphone (<NUM>) to maintain a contact with a lower surface of the upper plate (<NUM>).