Patent Description:
A heating cooker may include a sensor configured to detect information such as a position, a state, and a temperature of an object to be heated that is placed in a cooking chamber. The heating cooker is provided in such a way that a detection surface of the sensor faces the inside of the cooking chamber through an opening, which is formed on a wall of the cooking chamber, upon detecting information on the inside of the cooking chamber.

However, as for the heating cooker, the sensor has a risk of damage because the sensor is exposed to hot air convection in the inside of the cooking chamber. In addition, when the opening, which exposes the sensor, is open, the detection performance of the sensor may be deteriorated because the detection surface of the sensor is easily contaminated by steam or food residue of the inside of the cooking chamber. Therefore, it is required to take measures to protect the sensor from heat and contaminants.

<CIT> discloses a heating cooker configured to protect a sensor from heat in a cooking chamber and prevent contamination of the sensor.

The disclosed heating cooker includes a sensor installed in such a way that a detection surface faces the inside of the cooking chamber through an opening on a wall surface of the cooking chamber, a ventilation path installed along the wall surface of the cooking chamber in which the sensor is located, and a cooling fan configured to suck outside air and blow the air into the ventilation path. The air blown into the ventilation path by the cooling fan may cool the sensor while passing through the detection surface of the sensor, and the air may flow to the inside of the cooking chamber through the opening so as to prevent steam or food residue of the inside of the cooking chamber from moving to the sensor.

The heating cooker includes a movable cylinder portion formed in a semi-cylindrical shape and configured to support the sensor, and a motor configured to rotate the movable cylinder portion. As the movable cylinder portion is rotated by an operation of the motor, the sensor may be rotated to allow the detection surface to face the opening or to face a direction opposite to the opening. The opening may be closed by the movable cylinder portion in a state in which the detection surface of the sensor is rotated to face the opposite side of the opening. Therefore, the heating cooker may prevent the detection surface of the sensor, which is not in use, from being contaminated by the steam or food residue of the inside of the cooking chamber.

However, as for the heating cooker, the movable cylinder portion that covers the opening is exposed to the heat of the cooking chamber in a state in which the detection surface of the sensor is rotated to face the opposite side of the opening. Therefore, the sensor may be deteriorated or damaged by the heat transferred to the sensor side through the movable cylinder portion.

It is an aspect of the disclosure to provide a heating cooker capable of preventing a sensor configured to detect information on a cooking chamber from being deteriorated or damaged caused by a temperature rise.

In accordance with the present invention, there is provided a heating cooker according to claim <NUM>.

The one or more sensors may be spaced apart from an inner surface of the ventilation path, and the shutter may be provided in such a way that a part which opens and closes the detection hole is spaced apart from the detector.

The heating cooker may further include an air guide member provided in the ventilation path and configured to guide air blown by the cooling fan to the detector and the shutter.

The detector may include a driver configured to rotate the sensor unit so as to displace the sensor unit to a first position, in which a detection surface of the sensor faces the detection hole, and to a second position, in which the detection surface of the sensor faces a direction different from the detection hole.

The shutter may be mounted on the sensor unit to be rotated together with the sensor unit, and when the detection surface of the sensor faces the first position, the shutter may open the detection hole and when the detection surface of the sensor faces the second position, the shutter may close the detection hole.

The opening and closing portion of the shutter may be spaced apart from an outer surface of the sensor unit so as to allow cooling air to flow between the outer surface of the sensor unit and an inner surface of the sensor unit.

The wall surface of the cooking chamber, on which the detection hole is located, may include a sensor receiving portion formed to have a cross section in a circular arc shape and provided to protrude toward the inside of the cooking chamber, and the opening and closing portion of the shutter may be bent in a shape corresponding to an inner surface of the sensor receiving portion.

The sensor unit may include a sensor housing formed of a material having a lower heat transfer property than the shutter.

The detection hole may include a first detection hole and a second detection hole that are spaced apart from each other, and the sensor may include a first sensor provided at a position corresponding to the first detection hole and a second sensor provided at a position corresponding to the second detection hole, and the first detection hole may be covered by a window member having light transmission properties, and the second detection hole may be opened when the second sensor is used, and the second detection hole may be closed by the shutter when the second sensor is not used.

The case may include an inner case forming the wall surface of the cooking chamber, and an outer case provided on the outside of the inner case, and the ventilation path may be arranged between the inner case and the outer case.

The ventilation path may include an upper flow path provided to extend from an intake port formed on an upper front surface of the case to the rear side of the case, the upper flow path limited by a duct coupled to an outer surface of the inner case, the upper flow path in which the detector and the shutter are received, a rear flow path formed between the inner case and the outer case at the rear of the case, and connected to the upper flow path, and a lower flow path formed between the inner case and the outer case at the lower side of the case, and configured to guide the air of the rear flow path to a discharge port formed on a lower front surface of the case.

The door may include an inner panel forming the wall surface of the cooking chamber, and an outer panel provided on the outside of the inner panel, and the ventilation path may be arranged between the inner panel and the outer panel.

The ventilation path may be provided to extend in a horizontal direction in the inside of the upper side of the door, and may include an intake port and a discharge port formed at opposite side ends of the door.

The intake port and the discharge port may be opened in a direction intersecting an opening and closing direction of the door.

Embodiments of the invention are set out in the dependent claims.

In the following embodiments that do not fall within the scope of the claims relate to exemplary embodiments of the disclosure that are not covered by the claimed invention.

The heating cooker may prevent the sensor configured to detect information on the cooking chamber from being deteriorated or damaged caused by a temperature rise.

<FIG>, discussed below, and the various embodiments used to describe the principles of the present disclosure in this patent document are by way of illustration only and should not be construed in any way to limit the scope of the disclosure as defined by the appended claims.

Hereinafter a heating cooker according to embodiments of the disclosure will be described with reference to the drawings. In the drawing, "up" represents an upper side, "down" represents a lower side, "front" represents a door side, "rear" represents an opposite side of the door side, and "left" represents a left side and "right" represents a right side when viewed from a front surface of the door side.

<FIG> illustrates a perspective view of a heating cooker according to a first embodiment of the disclosure, <FIG> illustrates a front view of the heating cooker according to the first embodiment of the disclosure, illustrating a state in which a door is opened, <FIG> illustrates a cross-sectional view taken along line III-III of <FIG>, <FIG> illustrates a perspective view of a main portion of the heating cooker according to the first embodiment of the disclosure when viewed from the inside of a cooking chamber, <FIG> illustrates a perspective view of the main portion of the heating cooker according to the first embodiment of the disclosure when viewed from the outside of the cooking chamber, and <FIG> illustrates a cross-sectional view taken along line IV-IV of <FIG>.

A heating cooker <NUM> refers to a convection oven. As shown in <FIG> and <FIG>, the heating cooker <NUM> includes a case <NUM> in which a cooking chamber <NUM> configured to receive an object to be heated is formed, a door <NUM> configured to open and close an opening <NUM> configured to allow an object to be heated to be put into or taken out of the cooking chamber of the case <NUM>, a heater <NUM> configured to heat an object to be heated and received in the cooking chamber <NUM>, a display <NUM> on which information related to heating cooking is displayed, an operator <NUM> for operation of the heating cooker <NUM>, a detector <NUM> configured to detect information on the inside of the cooking chamber <NUM>, and a controller <NUM> configured to control overall operation of the heating cooker <NUM>.

The case <NUM> may have a rectangular parallelepiped, and may include the opening <NUM> on a front surface thereof. The case <NUM> includes an inner case <NUM> forming a wall surface of the cooking chamber <NUM> and an outer case <NUM> installed on the outside of the inner case <NUM> and forming an external shape of the heating cooker <NUM>. The heater <NUM> and the controller <NUM> may be provided in a space between the outer case <NUM> and the inner case <NUM>.

Referring to <FIG>, the cooking chamber <NUM> accommodates food materials such as meat, fish, and vegetables. A shelf <NUM> for loading food materials may be installed in the cooking chamber <NUM>, and a plurality of shelf supports <NUM> for supporting and adjusting a height of the shelves <NUM> may be provided on the left and rear wall surfaces of the inner case <NUM>. The plurality of shelf supports <NUM> may extend in the front and rear direction in a state of protruding toward the inner surface of the cooking chamber <NUM>. Opposite ends of the shelf <NUM> may be selectively supported by the plurality of shelf supports <NUM> and thus the height of the shelf <NUM> may be adjusted in the cooking chamber <NUM>.

As illustrated in <FIG>, a lighting device <NUM> configured to emit light toward the inside of the cooking chamber <NUM> so as allow a state of food material to be identified during cooking may be installed on a rear wall of the cooking chamber <NUM>. The lighting device <NUM> may include an incandescent lamp, a fluorescent lamp, or a light emitting diode (LED).

As illustrated in <FIG> and <FIG>, the door <NUM> may be connected to the case <NUM> in such a way that opposite sides of a lower portion of the door <NUM> are rotatably connected to opposite sides of a lower portion of the case <NUM> through a rotating shaft. Therefore, the door <NUM> may be rotated downward to open the opening <NUM> of the cooking chamber <NUM>, and rotated upward to close the opening <NUM> of the cooking chamber <NUM>.

The door <NUM> may include a handle <NUM> for opening and closing, and a see-through window <NUM> configured to allow a user to check a state of the food material in the cooking chamber <NUM> from the outside. The handle <NUM> may be in the form of a bar installed to extend in the left and right directions on the upper portion of the door <NUM>. The see-through window <NUM> may be installed in a central portion of the door <NUM>, and may be formed of a heat-resistant glass or a glass coated with a heat-reflecting material.

Referring to <FIG>, the heater <NUM> may heat air inside the cooking chamber <NUM>. The heater <NUM> may include a first heater <NUM>, a second heater <NUM>, and a third heater <NUM>. Output of the first heater <NUM>, the second heater <NUM>, and the third heater <NUM> may be adjusted independently of each other.

The first heater <NUM> may be installed below the cooking chamber <NUM> in the inside of the case <NUM>. The second heater <NUM> may be installed on a wall (ceiling) of the inner case <NUM> above the cooking chamber <NUM>. The first heater <NUM> and the second heater <NUM> each may be a heating element configured to generate heat or an infrared heater configured to emit infrared rays into the cooking chamber. Alternatively, the first heater <NUM> and the second heater <NUM> each may be configured by a combination of a heating element and an infrared heater.

The third heater <NUM> may be installed on an upper side and a lower side of the rear wall of the cooking chamber <NUM>, respectively. The third heater <NUM> may include a heating portion <NUM> configured to heat air and a circulation fan <NUM> configured to circulate air inside the cooking chamber <NUM> to allow the inside air of the cooking chamber to be heated by the heating portion <NUM>. The circulation fan <NUM> may installed on the rear side of a blowing port <NUM> formed on the rear wall of the cooking chamber <NUM>, and the heating portion <NUM> may be provided in such a way that a heating element, which generates heat by the application of the electric current, is installed in an annular shape around the circulation fan <NUM>. Therefore, the air of the inside of the cooking chamber <NUM> may be heated by the heating portion <NUM> while being circulated by the operation of the circulation fan <NUM>.

The display <NUM> and the operator <NUM> may correspond to an integrated control panel <NUM> provided above the opening <NUM> of the cooking chamber <NUM>. The control panel <NUM> may include a display device configured to display information and a touch panel for touch manipulation. The display device may include a liquid crystal display (LCD), an organic light emitting diode (OLED) display, and the touch panel may include a capacitive touch screen.

The control panel <NUM> may display information regarding heating cooking. The information related to the heating cooking may include an output level of the heater <NUM>, a time used for the heating cooking, an operation mode such as a manual cooking operation or an automatic cooking operation, or a piece of information indicating an execution of cleaning of the cooking chamber. The control panel <NUM> may receive information for cooking through a user's touch operation, or may command the start and stop of heating cooking and cleaning of the cooking chamber. The information manipulated through the control panel <NUM> is transmitted to the controller <NUM>.

Referring to <FIG>, a ventilation path <NUM> extending along the wall surface of the cooking chamber <NUM> is provided between the inner case <NUM> and outer case <NUM>. In addition, a cooling fan <NUM> configured to suck outside air and blow the outside air into the ventilation path <NUM> is installed in the ventilation path <NUM>. The cooling fan <NUM> may include a propeller fan. The cooling fan <NUM> may be driven when the heating cooker <NUM> is operated, and may blow cooling air to a direction of an arrow C, as shown in <FIG> and <FIG>.

As illustrated in <FIG>, the ventilation path <NUM> may include an upper flow path limited to a duct <NUM> extending from an intake port <NUM> formed on the upper front surface of the case <NUM> to the rear side of the case <NUM>, a rear flow path formed by a space between the inner case <NUM> and the outer case <NUM> at the rear of the case <NUM>, and connected to the upper flow path, and a lower flow path formed by a space between the inner case <NUM> and the outer case <NUM> at the lower side of the case <NUM>, and configured to guide the air of the rear flow path to a discharge port formed on the lower front surface of the case <NUM>.

The ventilation path <NUM> is illustrated as extending in the front and rear direction in the upper left portion of the case <NUM> according to the first embodiment, but is not limited thereto. Alternatively, the ventilation path <NUM> may be installed on the central portion or the upper right portion of the case <NUM>.

Referring to <FIG> and <FIG>, a sensor receiving portion <NUM> may be formed in such a way that a part of the ventilation path <NUM> extends to allow the detector <NUM> to be received therein, and the sensor receiving portion <NUM> may be installed in an upper corner of the inner case <NUM> (an upper left portion of the cooking chamber). The sensor receiving portion <NUM> may be formed to have a cross section in a circular arc shape, and the sensor receiving portion <NUM> may extend in the front and rear direction while protruding toward the inside of the cooking chamber <NUM>. The sensor receiving portion <NUM> may secure a space for receiving the detector <NUM> therein by forming the ventilation path <NUM> that extends together with the duct <NUM>.

As illustrated in <FIG>, the detector <NUM> includes a sensor unit <NUM> rotatably installed in the ventilation path <NUM> and configured to detect information on the inside of the cooking chamber <NUM>, and a driver <NUM> configured to rotate the sensor unit <NUM>. The driver <NUM> may be a motor configured to rotate the sensor unit <NUM> in the forward or reverse direction.

The sensor unit <NUM> may include a sensor housing <NUM> rotatably installed on a base member <NUM> fixed in the ventilation path <NUM>, and a plurality of sensors installed on the sensor housing <NUM> and configured to detect information on the inside of the cooking chamber <NUM>, and a light irradiator <NUM> installed in the sensor housing <NUM> and configured to emit visible light to the inside of the cooking chamber <NUM>. The plurality of sensors may include a camera <NUM> corresponding to a first sensor and a temperature sensor <NUM> corresponding to a second sensor.

The sensor housing <NUM> may be formed of a resin material having low heat transfer properties. As illustrated in <FIG>, the sensor housing <NUM> may be elongated in a longitudinal direction of the ventilation path, and a rotating shaft provided at opposite ends of the sensor housing is rotatably supported by the base member <NUM>. Therefore, the sensor housing <NUM> may be rotated with respect a rotation axis A extending in the front and rear direction. An outer surface of the sensor housing <NUM> may be evenly cooled by cooling air flowing through the ventilation path <NUM> because the sensor housing <NUM> is spaced apart from the inner surface of the ventilation path <NUM>. Further, it is possible to prevent the heat of the sensor receiving portion <NUM> from being transferred to the sensor housing <NUM> because the sensor housing <NUM> is spaced apart from the sensor receiving portion <NUM>.

As illustrated in <FIG>, the base member <NUM> may have a substantially semi-cylindrical shape, and an open portion may be disposed to face the inner surface of the duct <NUM>. Opposite ends of the base member <NUM> may be fixed to the inner case <NUM> by a plurality of fastening members <NUM>. The base member <NUM> is provided with a support plate <NUM> respectively provided on opposite sides of the base member <NUM> to rotatably support the sensor housing <NUM>. The base member <NUM> may rotatably support the sensor housing <NUM> while separating the sensor housing <NUM> from the inner surface of the ventilation path <NUM>. Further, the base member <NUM> may guide the cooling air to allow the cooling air to flow along the outside of the sensor unit <NUM>, thereby improving the cooling efficiency of the sensor unit <NUM>.

Referring to <FIG> and <FIG>, the sensor receiving portion <NUM> includes a first detection hole <NUM>, a second detection hole <NUM>, and a third detection hole <NUM> which pass through the ventilation path <NUM> and the cooking chamber <NUM>. The first detection hole <NUM>, the second detection hole <NUM>, and the third detection hole <NUM> may be formed at intervals in the front and rear direction, and may be elongated in a direction along a curved surface of the sensor receiving portion <NUM>. A distance between the first detection hole <NUM> and the second detection hole <NUM> may be less than a distance between the second detection hole <NUM> and the third detection hole <NUM>.

The first detection hole <NUM> is formed at a position corresponding to an imaging surface <NUM> of the camera <NUM> (a detection surface of the first sensor), and the second detection hole <NUM> is formed at a position corresponding to a detection surface <NUM> of the temperature sensor <NUM> (a detection surface of the second sensor). The third detection hole <NUM> is formed at a position corresponding to a light emitting surface <NUM> of the light irradiator <NUM>. Therefore, the camera <NUM> may obtain image information on food materials placed in the cooking chamber <NUM> through the first detection hole <NUM>, and the temperature sensor <NUM> may measure a temperature of an object to be heated in the cooking chamber <NUM> through the second detection hole <NUM>. The light irradiator <NUM> may emit light into the cooking chamber <NUM> through the third detection hole <NUM>.

The camera <NUM> may include a charge-coupled device (CCD) camera, or a complementary metal-oxide semiconductor (CMOS) camera. A focal length or an angle of view of the camera <NUM> may be set to image the entire front and rear direction of the food material placed on the shelf <NUM> of the cooking chamber <NUM>. The image information obtained by the camera <NUM> is transmitted to the controller <NUM>.

In order to automatically identify the type of food material, the camera <NUM> may image an entire of the food material in the cooking chamber <NUM> and transmit the image information to the controller <NUM>. In addition, the camera <NUM> may also obtain three dimensional information of food materials placed in the cooking chamber <NUM> in cooperation with the light irradiator <NUM>. The three-dimensional information of the food material includes a three-dimensional shape represented by three-dimensional coordinates of the food material. The camera <NUM> and the light irradiator <NUM> may constitute a three-dimensional measuring device configured to measure the three-dimensional shape of the food material.

The light irradiator <NUM> may include a semiconductor laser, and through the third detection hole <NUM>, the light irradiator <NUM> may emit visible light having a predetermined wavelength to the food material placed in the cooking chamber <NUM>. The light irradiator <NUM> may change the wavelength of the irradiated light. To this end, the light irradiator <NUM> may include a plurality of semiconductor lasers configured to emit light rays of different colors, or a mechanism configured to change the wavelength.

The light irradiator <NUM> may change visible light emitted by the semiconductor laser into a predetermined pattern and output the visible light in the predetermined pattern. The light irradiator <NUM> emits visible light, which spreads radially, toward the food material in the cooking chamber <NUM>, and the camera <NUM> images the visible light emitted by the light irradiator <NUM>. The three-dimensional measuring device may measure a three-dimensional shape of the food material using the principle of triangulation based on the visible light obtained by the camera <NUM>.

The first detection hole <NUM> and the third detection hole <NUM> are covered by a window member <NUM> having light transmission properties. The window member <NUM> may be a heat-resistant glass capable of withstanding a temperature of the heated cooking chamber <NUM> and having excellent light transmittance. The first detection hole <NUM> and the third detection hole <NUM> are maintained in a state of being covered by the window member <NUM>. Therefore, the imaging surface <NUM> of the camera <NUM> and the light emitting surface <NUM> of the light irradiator <NUM> are not contaminated by steam or food residue of the inside of the cooking chamber <NUM>.

The temperature sensor <NUM> may measure heat distribution of the food materials placed in the cooking chamber <NUM> through the second detection hole <NUM> and detect a surface temperature of the food materials in a non-contact manner. The temperature sensor <NUM> may be an infrared sensor configured to detect infrared rays emitted to a detection target region. Temperature information detected by the temperature sensor <NUM> is transmitted to the controller <NUM>.

When the temperature sensor <NUM> is covered by the window member such as a heat-resistant glass, electromagnetic waves may be attenuated in the process of passing through the window member, and thus the surface temperature of the food material may not be accurately detected. Therefore, the window member is not installed in the second detection hole <NUM>.

However, when the second detection hole <NUM> is kept open even when the camera <NUM> and the temperature sensor <NUM> are not used, steam or food residue in the cooking chamber <NUM> may be moved to the sensor unit <NUM> side through the second detection hole <NUM> and thus the steam or food residue may contaminate the detection surface <NUM> of the temperature sensor <NUM> and the imaging surface <NUM> of the camera <NUM>. Therefore, the heating cooker <NUM> according to the first embodiment includes a shutter <NUM> configured to close the second detection hole <NUM> when the camera <NUM> and the temperature sensor <NUM> are not used.

The shutter <NUM> may be mounted on the sensor unit <NUM> to be rotated together with the sensor unit <NUM> upon the rotation of the sensor unit <NUM>, as illustrated in <FIG>. As illustrated in <FIG>, the shutter <NUM> may open the second detection hole <NUM> when the detection surface <NUM> of the temperature sensor <NUM> is rotated to a first position in which the detection surface <NUM> of the temperature sensor <NUM> faces the second detection hole <NUM>. As illustrated in <FIG>, the shutter <NUM> may close the second detection hole <NUM> when the detection surface <NUM> of the temperature sensor <NUM> is rotated to a second position in which the detection surface <NUM> of the temperature sensor <NUM> does not face the second detection hole <NUM>.

The shutter <NUM> includes a fixer 87a fastened to a bracket <NUM> formed on the outer surface of the sensor housing <NUM>, and an opening and closing portion 87b extending from the fixer 87a to open and close the second detection hole <NUM>.

In a state in which an insulating member <NUM> is interposed therebetween, the fixer 87a is fixed to the bracket <NUM> by fastening a fixing screw <NUM>. The opening and closing portion 87b extends from the fixer 87a to cover the outside of the sensor housing <NUM>, and the opening and closing portion 87b is bent in a shape corresponding to the inner surface of the sensor receiving portion <NUM> in which the second detection hole <NUM> is placed.

The fixer 87a and the opening and closing portion 87b of the shutter <NUM> may be integrally provided by bending a flat material having excellent heat resistance such as enamel. The sensor housing <NUM> may be formed of a resin material having a lower heat transfer property than the shutter <NUM>. The insulating member <NUM> interposed between the fixer 87a and the bracket <NUM> may be a mica plate having excellent heat insulating property. The insulating member <NUM> prevents heat being transferred from the shutter <NUM> to the sensor housing <NUM>. Therefore, as shown in <FIG>, the heating cooker <NUM> can prevent the heat from being transferred to the sensor unit <NUM> side even when the opening and closing portion 87b of the shutter <NUM>, which closes the second detection hole <NUM>, is heated by the heat of the cooking chamber <NUM>.

The opening and closing portion 87b of the shutter <NUM> is spaced from the outer surface of the sensor housing <NUM> so as to form a space <NUM>, through which the cooling air passes is formed, between the outer surface and the inner surface of the sensor unit <NUM>. Therefore, the sensor unit <NUM> and the shutter <NUM> are sufficiently cooled by the cooling air flowing through the ventilation path <NUM> in the state of <FIG> in which the shutter <NUM> closes the second detection hole <NUM> as well as in the state of <FIG>.

As shown in <FIG>, the driver <NUM> is installed at one end side of the sensor unit <NUM>. By rotating the sensor unit <NUM> within a predetermined angle range, the driver <NUM> may displace the imaging surface <NUM> of the camera <NUM>, the detection surface <NUM> of the temperature sensor <NUM>, and the light emitting surface <NUM> of the light irradiator <NUM> to a use position (a first position) as illustrated in <FIG> or to a non-use position (a second position) as illustrated in <FIG>.

The use position of the sensor unit <NUM> is a position in which the imaging surface <NUM> of the camera <NUM> faces the first detection hole <NUM>, the detection surface <NUM> of the temperature sensor <NUM> faces the second detection hole <NUM>, and the light emitting surface <NUM> of the light irradiator <NUM> faces the third detection hole <NUM>. The non-use position of the sensor unit <NUM> is a position in which the imaging surface <NUM> of the camera <NUM> faces a direction different from the first detection hole <NUM>, the detection surface <NUM> of the temperature sensor <NUM> faces a direction different from the second detection hole <NUM>, and the light emitting surface <NUM> of the light irradiator <NUM> faces a direction different from the third detection hole <NUM>. When the sensor unit <NUM> is in the non-use position, the second detection hole <NUM> is closed by the shutter <NUM> as shown in <FIG>.

The controller <NUM> is electrically connected to communicate with the heater <NUM>, the display <NUM>, the operator <NUM>, and the detector <NUM> of the heating cooker <NUM>. The controller <NUM> may be a conventional microcomputer. The controller <NUM> includes a Central Processing Unit (CPU) for executing a program, and a memory for storing various programs and data executed in the CPU. By executing a program stored in the memory, the controller <NUM> may perform heating cooking or cleaning of the cooking chamber based on information set through the control panel <NUM> and information on the inside of the cooking chamber <NUM> detected by the detector <NUM>.

The controller <NUM> may drive the driver <NUM> so as to switch the position of the imaging surface <NUM> of the camera <NUM>, the detection surface <NUM> of the temperature sensor <NUM>, and the light emitting surface <NUM> of the light irradiator <NUM> to the non-use position. That is, during a manual cooking operation that does not detect information on the inside of the cooking chamber <NUM> by the camera <NUM>, the temperature sensor <NUM> or the three-dimensional measuring device, and a period of time, which is except a time for detecting information on the inside of the cooking chamber <NUM>, during an automatic cooking operation that detects information on the inside of the cooking chamber <NUM>, the controller <NUM> may switch the position of the sensor unit <NUM> to the non-use position Accordingly, by allowing the sensor unit <NUM> to switch to the non-use position, the controller <NUM> may protect the camera <NUM>, the temperature sensor <NUM>, and the light irradiator <NUM> from heat of the inside of the cooking chamber <NUM> and by closing the second detection hole <NUM> with the shutter <NUM>, the controller <NUM> may prevent the imaging surface <NUM> of the camera <NUM>, the detection surface <NUM> of the temperature sensor <NUM>, and the light emitting surface <NUM> of the light irradiator <NUM> from being contaminated.

The heating cooker <NUM> may perform a cleaning function called pyrolytic cleaning. Pyrolytic cleaning heats the inside of the cooking chamber <NUM> to <NUM> or higher to clean up contamination such as grease by pyrolysis. Therefore, the camera <NUM>, the temperature sensor <NUM>, and the light irradiator <NUM> of the sensor unit <NUM> may be deteriorated or damaged by heat of the inside of the cooking chamber <NUM> when performing the pyrolytic cleaning.

Upon the pyrolytic cleaning as described above, the controller <NUM> may drive the driver <NUM> so as to switch the position of the imaging surface <NUM> of the camera <NUM>, the detection surface <NUM> of the temperature sensor <NUM>, and the light emitting surface <NUM> of the light irradiator <NUM> into the non-use position, thereby protecting the camera <NUM>, the temperature sensor <NUM>, and the light irradiator <NUM> from the heat of the cooking chamber <NUM>. At the same time, by closing the second detection hole <NUM> with the shutter <NUM>, the controller <NUM> may prevent the imaging surface <NUM> of the camera <NUM>, the detection surface <NUM> of the temperature sensor <NUM>, and the light emitting surface <NUM> of the light irradiator <NUM> from being contaminated.

The controller <NUM> drives the cooling fan <NUM> when the operation of the heating cooker <NUM> (heating cooking or cleaning of the cooking chamber) is started. The sensor unit <NUM> and the shutter <NUM> are cooled together by the cooling air distributed in the ventilation path <NUM> by the driving of the cooling fan <NUM>. The cooling air flowing through the ventilation path <NUM> cools the camera <NUM>, the temperature sensor <NUM>, the light irradiator <NUM>, and each window member <NUM> by passing between the imaging surface <NUM> of the camera <NUM> and the window member <NUM> installed in the first detection hole <NUM>, between the detection surface <NUM> of the temperature sensor <NUM> and the second detection hole <NUM>, and between the light emitting surface <NUM> of the light irradiator <NUM> and the window member <NUM> installed in the third detection hole <NUM>. In order to protect the sensor unit <NUM> from the heat of the cooking chamber <NUM>, the heating cooker <NUM> distributes the cooling air to the sensor unit <NUM> and the vicinity of the sensor unit <NUM>, thereby cooling the sensor unit <NUM>.

As for the heating cooker <NUM> according to the first embodiment, the shutter <NUM> opens and closes the second detection hole <NUM> according to whether the sensor unit <NUM> is used. Accordingly, when the sensor unit <NUM> is not used, the camera <NUM>, the temperature sensor <NUM>, and the light irradiator <NUM> may be protected from heat of the cooking chamber <NUM>, and at the same time, the imaging surface <NUM> of the camera <NUM>, the detection surface <NUM> of the temperature sensor <NUM> and the light emitting surface <NUM> of the light irradiator <NUM> may be prevented from being contaminated.

The heating cooker <NUM> according to the first embodiment cools the shutter <NUM> and the sensor unit <NUM> together by distributing the cooling air through the ventilation path <NUM>. Therefore, even when the shutter <NUM> is exposed to hot air convection in the inside of the cooking chamber <NUM> in a state in which the sensor unit <NUM> is not used, it is possible to easily cool the sensor unit <NUM> and the shutter <NUM> and it is possible to minimize the heat that is transferred from the shutter <NUM> to the sensor unit <NUM>. Accordingly, it is possible to prevent the camera <NUM>, the temperature sensor <NUM>, and the light irradiator <NUM> from being deteriorated or damaged caused by the temperature rise.

Because the heating cooker <NUM> according to the first embodiment distributes the cooling air between the camera <NUM> and the window member <NUM> installed in the first detection hole <NUM>, the temperature rise in the space between the camera <NUM> and the window member <NUM> may be prevented while the camera <NUM> is brought close to the window member <NUM>. Therefore, it is possible to prevent the camera <NUM> from being over heated by the heat of the inside of the cooking chamber <NUM>. Further, because the camera <NUM> is brought close to the window member <NUM>, it is possible to secure a wide range for detecting information on the inside of the cooking chamber <NUM> while reducing a size of the first detection hole <NUM>.

Because the heating cooker <NUM> according to the first embodiment distributes the cooling air between the light irradiator <NUM> and the window member <NUM> installed in the third detection hole <NUM>, the temperature rise in the space between the light irradiator <NUM> and the window member <NUM> may be prevented while light irradiator <NUM> is brought close to the window member <NUM>. Therefore, it is possible to prevent the light irradiator <NUM> from being over heated by the heat of the inside of the cooking chamber <NUM>. Further, because the light irradiator <NUM> is brought close to the window member <NUM>, it is possible to secure a wide range for emitting visible light in the inside of the cooking chamber <NUM> while reducing a size of third detection hole <NUM>.

The heating cooker <NUM> according to the first embodiment may prevent the imaging surface <NUM> of the camera <NUM>, the detection surface <NUM> of the temperature sensor <NUM>, and the light emitting surface <NUM> of the light irradiator <NUM> from facing the first detection hole <NUM>, the second detection hole <NUM> and the third detection hole <NUM>, respectively when the sensor unit <NUM> is not used. Accordingly, it is possible to protect the imaging surface <NUM> of the camera <NUM>, the detection surface <NUM> of the temperature sensor <NUM>, and the light emitting surface <NUM> of the light irradiator <NUM> from the heat of the inside of the cooking chamber <NUM>.

As for the heating cooker <NUM> according to the first embodiment, the shutter <NUM> is installed in the sensor unit <NUM>. Therefore, by using the single driver <NUM>, the heating cooker <NUM> may perform switching of the position of the imaging surface <NUM> of the camera <NUM>, the detection surface <NUM> of the temperature sensor <NUM>, and the light emitting surface <NUM> of the light irradiator <NUM> and perform opening and closing of the second detection hole <NUM> by the shutter <NUM>. Therefore, it is possible to reduce the number of components so as to make the heating cooker <NUM> compact.

As for the heating cooker <NUM> according to the first embodiment, the wall surface of the cooking chamber <NUM>, on which the sensor unit <NUM> is installed, includes the sensor receiving portion <NUM> having the circular arc shape that is along the rotational trajectory of the sensor unit <NUM>. Therefore, although the first to third detection holes <NUM>, <NUM>, and <NUM> are relatively small, the heating cooker <NUM> according to the first embodiment may secure a wide range, in which the camera <NUM>, the temperature sensor <NUM>, and the three-dimensional measuring device detect the information on the inside of the cooking chamber <NUM>, and reduce the effect of the heat of the inside of the cooking chamber <NUM> applied to the camera <NUM>, the temperature sensor <NUM> and the light irradiator <NUM>, regardless of the change in the direction of the imaging surface <NUM> of the camera <NUM>, the detection surface <NUM> of the temperature sensor <NUM>, and the light emitting surface <NUM> of the light irradiator <NUM> according to the rotation of the sensor unit <NUM>.

The heating cooker <NUM> according to the first embodiment may prevent the heat of the shutter <NUM>, which is exposed to the high temperature air, from being transferred to the sensor unit <NUM> because the insulating member <NUM> is installed at the connection portion between the sensor unit <NUM> and the shutter <NUM>. Therefore, the heating cooker <NUM> may prevent the camera <NUM>, the temperature sensor <NUM>, and the light irradiator <NUM> from being damaged caused by the temperature rise, and may improve the durability of the sensor unit <NUM>.

In a heating cooker <NUM> according to a second embodiment, an installation position of a detector <NUM> configured to detect information on the inside of a cooking chamber <NUM> is different from the installation position of the detector <NUM> according to the first embodiment. In the second embodiment, except for the heater and components related to the heater, components are substantially the same as the first embodiment, and thus the heater and the components related to the heater will be mainly described. A description of other component will refer to the description of the first embodiment based on <FIG>.

<FIG> illustrates a perspective view of a heating cooker according to a second embodiment of the disclosure, <FIG> illustrates a perspective view of a rear surface of a door of the heating cooker according to the second embodiment of the disclosure, <FIG> illustrates a cross-sectional view taken along line XI-XI of <FIG>, <FIG> illustrates a cross-sectional view taken along line XII-XII of <FIG>, <FIG> illustrates a cross-sectional view taken along line XIII-XIII of <FIG>, illustrating a state in which a sensor unit is rotated to be a state in which a sensor is used, and <FIG> illustrates a cross-sectional view taken along line XIII-XIIIof <FIG>, illustrating a state in which the sensor unit is rotated to be a state in which the sensor is not used.

According to the second embodiment, the heating cooker <NUM> includes a ventilation path <NUM> provided on an upper side of a door <NUM> so as to extend in the left and right direction along a wall surface of the cooking chamber <NUM>, and a detector <NUM> installed in the inside of the ventilation path <NUM> and provided with a sensor unit <NUM>, as shown in <FIG>.

The door <NUM> includes an inner panel <NUM> forming the wall surface of the cooking chamber <NUM>, an outer panel <NUM> provided on the outside of the inner panel <NUM> so as to form a part forming the front surface thereof, and a main duct member <NUM> and a discharge duct member <NUM> that are arranged between the inner panel <NUM> and the outer panel <NUM>. The ventilation path <NUM> is provided between the outer panel <NUM> and the inner panel <NUM>. A part of the ventilation path <NUM> is formed by the main duct member <NUM> and the discharge duct member <NUM>.

The main duct member <NUM> includes an inlet <NUM> on a front side of a left end, and an outlet <NUM> on the front side of a right end. The discharge duct member <NUM> is installed to cover the outlet <NUM> of the main duct member <NUM>, and forms a downstream side part of the ventilation path <NUM>. A part of the ventilation path <NUM>, which is positioned in an upstream than the main duct member <NUM>, is formed by a space between the outer panel <NUM> and the inner panel <NUM>.

Referring to <FIG> and <FIG>, a hollow passage member <NUM> in communication with the ventilation path <NUM> is installed below opposite ends of the handle <NUM>, respectively. An intake port <NUM> through which the outside air flows into the ventilation path <NUM> is formed on a left surface of the passage member <NUM> located below the left portion of the handle <NUM>, and a discharge port <NUM> through which the air of the inside of the ventilation path <NUM> is discharged is formed on a right surface of the passage member <NUM> located below the right portion of the handle <NUM>. The intake port <NUM> and the discharge port <NUM> include a plurality of openings formed in a circular shape, respectively. The intake port <NUM> and the discharge port <NUM> are open in a direction intersecting an opening direction of the door <NUM>.

The ventilation path <NUM> is formed in a shape in which the intake port <NUM>, the passage member <NUM> on the left side, the inlet <NUM> of the main duct member <NUM>, an inner space of the main duct member <NUM>, the outlet <NUM> of the main duct member <NUM>, an inner space of the discharge duct member <NUM>, the passage member <NUM> on the right side, and the discharge port <NUM> communicate with each other.

Referring to <FIG>, the inner panel <NUM> of the door <NUM> includes a sensor receiving portion <NUM> provided on an upper portion of the inner panel <NUM> to form the ventilation path <NUM> together with the main duct member <NUM>. The sensor receiving portion <NUM> includes a cross section formed in a circular arc shape. The sensor receiving portion <NUM> protrudes toward the inside of the cooking chamber <NUM> and extends in the left and right directions. The sensor receiving portion <NUM> may secure a space for the installation of the detector <NUM> therein by forming the ventilation path <NUM> extending together with the main duct member <NUM>. The sensor receiving portion <NUM> forms the inner wall surface of the cooking chamber <NUM> at the position in which the sensor unit <NUM> of the detector <NUM> is installed, and the inner surface of the sensor receiving portion <NUM> is provided in a circular arc shape corresponding to a rotational trajectory of the sensor unit <NUM>.

The sensor receiving portion <NUM> includes a first detection hole <NUM>, a second detection hole <NUM>, and a third detection hole <NUM> which penetrate the inner panel <NUM>. In the same manner as the first embodiment, the first detection hole <NUM>, the second detection hole <NUM>, and the third detection hole <NUM> may be formed at intervals in the left and right directions and may be elongated along the curved surface of the sensor receiving portion <NUM>. A window member <NUM> formed of heat-resistant glass having light transmission property is installed in the first detection hole <NUM> and the third detection hole <NUM>, but the window member <NUM> is not installed in the second detection hole <NUM>.

The detector <NUM> configured to detect information on the inside of the cooking chamber <NUM>, a cooling fan <NUM> configured to suck outside air and blow the outside air to the ventilation path <NUM>, a partition plate <NUM> configured to reduce an area of a cross section of a flow path of the ventilation path <NUM>, and an air guide member <NUM> configured to guide the cooling air, which is blown by the cooling fan <NUM>, to the sensor unit <NUM> and the shutter <NUM> of the detector <NUM> are installed in the ventilation path <NUM>.

The cooling fan <NUM> is arranged on the upstream side of the ventilation path <NUM>. The cooling fan <NUM> is driven when the heating cooker <NUM> is operated, and the cooling fan <NUM> blows cooling air to a direction of an arrow C as illustrated in <FIG> and <FIG>.

In the same manner as the first embodiment, the detector <NUM> includes the sensor unit <NUM> rotatably installed in the ventilation path <NUM> and a driver <NUM> configured to rotate the sensor unit <NUM>. The driver <NUM> may be a motor configured to rotate the sensor unit <NUM> in the forward or reverse direction.

The sensor unit <NUM> includes a camera <NUM>, a temperature sensor <NUM>, and a light irradiator <NUM>, and a sensor housing <NUM> configured to receive and support the camera <NUM>, the temperature sensor <NUM>, and the light irradiator <NUM>. The sensor housing <NUM> is rotatably supported by a bracket <NUM> fixed to the inner panel <NUM>. Therefore, the sensor unit <NUM> may be rotated with respect an axis A extending in the left and right directions. An outer surface of the sensor housing <NUM> may be evenly cooled by cooling air flowing through the ventilation path <NUM> because the sensor housing <NUM> is spaced apart from the inner surface of the ventilation path <NUM>. Further, it is possible to prevent the heat of the sensor receiving portion <NUM> from being transferred to the sensor housing <NUM> because the sensor housing <NUM> is spaced apart from the sensor receiving portion <NUM>.

The sensor unit <NUM> is provided with a shutter <NUM> configured to be rotated together with the sensor unit <NUM> to close the second detection hole <NUM> when the camera <NUM> and the temperature sensor <NUM> are not used. The shutter <NUM> includes a fixer 87a fastened to the outer surface of the sensor housing <NUM> and an opening and closing portion 87b extending from the fixer 87a to open and close the second detection hole <NUM>.

The fixer 87a is fixed to the sensor housing <NUM> by fastening a fixing screw <NUM> in a state in which an insulating member <NUM> such as a mica plate is interposed. The opening and closing portion 87b extends from the fixer 87a and is bent in a shape corresponding to the inner surface of the sensor receiving portion <NUM> in which the second detection hole <NUM> is placed. As illustrated in <FIG>, the main duct member <NUM> includes a receiving portion <NUM> configured to receive a front end of the opening and closing portion 87b of the shutter <NUM> when the sensor unit <NUM> is in a use position.

As shown in <FIG>, the driver <NUM> is installed at one end side of the sensor unit <NUM>. By rotating the sensor unit <NUM> within a predetermined angle range, the driver <NUM> may displace the imaging surface <NUM> of the camera <NUM>, the detection surface <NUM> of the temperature sensor <NUM>, and the light emitting surface <NUM> of the light irradiator <NUM> to the use position (a first position) as illustrated in <FIG> or to a non-use position (a second position) as illustrated in <FIG>.

The use position of the sensor unit <NUM> is a position in which the imaging surface <NUM> of the camera <NUM> faces the first detection hole <NUM>, the detection surface <NUM> of the temperature sensor <NUM> faces the second detection hole <NUM>, and the light emitting surface <NUM> of the light irradiator <NUM> faces the third detection hole <NUM>. The non-use position of the sensor unit <NUM> is a position in which the imaging surface <NUM> of the camera <NUM> faces a direction different from the first detection hole <NUM>, the detection surface <NUM> of the temperature sensor <NUM> faces a direction different from the second detection hole <NUM>, and the light emitting surface <NUM> of the light irradiator <NUM> faces a direction different from the third detection hole <NUM>. When the sensor unit <NUM> is in the non-use position, the second detection hole <NUM> is closed by the shutter <NUM>.

The partition plate <NUM> is arranged between the cooling fan <NUM> and the sensor unit <NUM>, and is arranged on an upstream of a position in which the first detection hole <NUM> is formed. The partition plate <NUM> partitions the ventilation path <NUM> to limit a flow space of the air blown by the cooling fan <NUM>. The air guide member <NUM> is disposed at a position facing the partition plate <NUM>. The air guide member <NUM> is installed to be gradually inclined to approach the partition plate <NUM> as the guide member <NUM> approaches to a downstream of the ventilation path <NUM> from an upstream of the ventilation path <NUM>. An upstream side open end between the partition plate <NUM> and the air guide member <NUM> faces the cooling fan <NUM>, and a downstream side open end between the partition plate <NUM> and the air guide member <NUM> faces the shutter <NUM>. The partition plate <NUM> and the air guide member <NUM> may be formed of an insulating material such as a mica plate.

The air, which is blown by the cooling fan <NUM>, flows toward the sensor unit <NUM> and the shutter <NUM> while a flow rate of the air increases in the process of passing between the partition plate <NUM> and the air guide member <NUM>. The sensor unit <NUM> and the shutter <NUM> are cooled together by the cooling air. At this time, the cooling air flowing through the ventilation path <NUM> flows between the imaging surface <NUM> of the camera <NUM> and the window member <NUM> installed in the first detection hole <NUM>, between the detection surface <NUM> of the temperature sensor <NUM> and the second detection hole <NUM>, and between the light emitting surface <NUM> of the light irradiator <NUM> and the window member <NUM> installed in the third detection hole <NUM>. Therefore, the camera <NUM>, the temperature sensor <NUM>, the light irradiator <NUM>, and each window member <NUM> are cooled by the cooling air.

In the heating cooker <NUM> according to the second embodiment, the shutter <NUM> opens and closes the second detection hole <NUM> according to whether the sensor unit <NUM> is used, and the shutter <NUM> and the sensor unit <NUM> are cooled by the cooling air. Accordingly, it is possible to prevent the heat from being transferred from the shutter <NUM> to the sensor unit <NUM>, which is the same manner as the first embodiment. Therefore, it is possible to prevent the camera <NUM>, the temperature sensor <NUM>, and the light irradiator <NUM> from being deteriorated or damaged caused by the temperature rise.

When the door <NUM> is opened, a large amount of the inside air of the cooking chamber <NUM> flows, and thus oil droplets and water droplets may be moved toward the sensor unit <NUM> through the second detection hole <NUM>. When the food material is taken out, droplet falling from the food material or a part of the food material may be moved to the sensor unit <NUM> side through the second detection hole <NUM> because the sensor receiving portion <NUM> configured to receive the sensor unit <NUM> is located below the food material. However, in the heating cooker <NUM> according to the second embodiment, when the door is opened, the second detection hole <NUM> may be closed by the shutter <NUM>. Therefore, oil droplets, water droplets and food materials may be prevented from being moved to the sensor unit <NUM> side. Accordingly, it is possible to secure the reliability of the sensor unit <NUM>.

The heating cooker <NUM> according to the second embodiment may improve the cooling efficiency of the sensor unit <NUM> and the shutter <NUM> because the air guide member <NUM> sufficiently guides the cooling air of the inside of the ventilation path <NUM> to the sensor unit <NUM> and the shutter <NUM> side. Therefore, it is possible to prevent the camera <NUM>, the temperature sensor <NUM>, and the light irradiator <NUM> from being deteriorated or damaged caused by the temperature rise.

The heating cooker <NUM> according to the second embodiment may easily detect the information on the inside of the cooking chamber <NUM> because the sensor unit <NUM> is installed in the inside of the door <NUM> and the imaging surface <NUM> of the camera <NUM>, the detection surface <NUM> of the temperature sensor <NUM> and the light emitting surface <NUM> of the light irradiator <NUM> face the inside of the cooking chamber <NUM> through the first detection hole <NUM>, the second detection hole <NUM>, and the third detection hole <NUM>, respectively. Further, even when foreign material is attached to the window member <NUM> installed in the first detection hole <NUM> and the third detection hole <NUM>, it is possible to easily perform maintenance such as wiping the window member <NUM>.

In the heating cooker <NUM> according to the second embodiment, it is possible to prevent the heat, which moves to the outside of the cooking chamber <NUM> upon the opening of the door <NUM>, from moving to the inside of the ventilation path <NUM> through the intake port <NUM> because the intake port <NUM> is opened in a direction intersecting an opening and closing direction of the door <NUM>. Therefore, it is possible to secure the cooling function of the sensor unit <NUM> and the shutter <NUM> by driving the cooling fan <NUM>.

Meanwhile, the first and second embodiments described above may be variously modified as described below.

The heating cooker is illustrated that a single driver <NUM> operates the sensor unit <NUM> and the shutter <NUM> together in the heating cooker, but is not limited thereto. Alternatively, the sensor unit <NUM> and the shutter <NUM> may be provided with a separate driver, respectively.

The sensor unit <NUM> is illustrated to include the camera <NUM>, the temperature sensor <NUM>, and the light irradiator <NUM>, but is not limited thereto. Alternatively, the sensor unit <NUM> may include the camera <NUM> and the temperature sensor <NUM>, or may include the camera <NUM> and the light irradiator <NUM>. The sensor unit <NUM> may include other sensors in addition to the camera <NUM> and the temperature sensor <NUM>. Instead of the sensor unit <NUM> including the plurality of sensors, a detector including the camera <NUM>, or a detector including the temperature sensor <NUM> , or a detector including other sensor may be installed in the heating cooker.

The heating cooker <NUM> may include a steam generator, and may include a steam cooking function for supplying steam into the cooking chamber <NUM>. Although the heating cooker <NUM> is illustrated to have a pyrolytic cleaning function, the heating cooker <NUM> may have other cleaning functions or exclude the cleaning function.

The detector <NUM> may include a moving mechanism configured to move the sensor unit <NUM> in a sliding manner. In this case, according to the sliding movement of the sensor unit <NUM>, the imaging surface <NUM> of the camera <NUM>, the detection surface <NUM> of the temperature sensor <NUM>, and the light emitting surface <NUM> of the light irradiator <NUM> may be displaced to a use position in which the imaging surface <NUM>, the detection surface <NUM>, and the light emitting surface <NUM> face the detection hole <NUM>, the second detection hole <NUM>, and the third detection hole <NUM>, respectively, and to a non-use position in which the imaging surface <NUM>, the detection surface <NUM>, and the light emitting surface <NUM> face a direction different from the detection hole <NUM>, the second detection hole <NUM>, and the third detection hole <NUM>, respectively.

The display <NUM> and the operator <NUM> are illustrated as the integral control panel <NUM>, but the display <NUM> and the operator <NUM> may be separately installed. Further, the operator <NUM> may include a button type switch or a dial.

The third heater <NUM> is illustrated to be installed on the upper and lower sides of the rear wall of the cooking chamber <NUM>, respectively. Alternatively, the third heater <NUM> may be installed on one of the upper and lower sides of the rear wall of the cooking chamber <NUM> or installed on the center of the rear wall of the cooking chamber <NUM>.

The mica plate is illustrated as the insulating member <NUM> interposed in the connection portion between the sensor unit <NUM> and the shutter <NUM>, but is not limited thereto. Therefore, any insulating member capable of withstanding the heat of the inside of the cooking chamber <NUM> may be employed.

Claim 1:
A heating cooker comprising:
a case (<NUM>) comprising a cooking chamber (<NUM>) configured to receive an object to be heated;
a door (<NUM>) configured to open and close the cooking chamber (<NUM>) of the case (<NUM>);
a ventilation path (<NUM>) provided to extend along a wall surface of the cooking chamber (<NUM>) in a state of being partitioned from the cooking chamber (<NUM>);
a detector (<NUM>) installed in the inside of the ventilation path (<NUM>) and comprising: one or more sensors (<NUM>, <NUM>, <NUM>) configured to detect information on the inside of the cooking chamber (<NUM>) through one or more detection holes (<NUM>, <NUM>, <NUM>) formed on the wall surface of the cooking chamber (<NUM>), and a sensor unit (<NUM>) rotatably installed to be spaced apart from an inner surface of the ventilation path (<NUM>), and to which the one or more sensors (<NUM>, <NUM>, <NUM>) is coupled;
a shutter (<NUM>) installed in the inside of the ventilation path (<NUM>) and configured to open and close the one or more detection holes (<NUM>, <NUM>, <NUM>); and
a cooling fan (<NUM>) configured to suck outside air and blow the outside air into the ventilation path (<NUM>) to cool the detector (<NUM>) and the shutter (<NUM>) together,
characterized in that the shutter (<NUM>) comprises:
a fixer (87a) fixed to the sensor unit (<NUM>) through an insulating member (<NUM>); and
an opening and closing portion (87b) provided to extend from the fixer (87a) and configured to open and close the one or more detection holes (<NUM>, <NUM>, <NUM>).