JP3081736B2 - Cooking device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heating cooker comprising a heater for heating food in a cooking chamber and a fan device for cooling various components in a machine room.

[0002]

2. Description of the Related Art For example, an oven grill range, which is a heating cooker of this type, is provided with a heater for heating the food contained in a cooking chamber and a magnetron for heating the food at high frequency. I have. In the case of this configuration, the magnetron is provided in a machine room provided adjacent to one side wall of the cooking chamber. In the machine room, various components such as a transformer and a control device are arranged in addition to the magnetron, and a fan device for cooling various components such as the magnetron is arranged. On the other hand, a sensor chamber is provided adjacent to the other side wall of the cooking chamber, and in the sensor chamber,
For example, an optical sensor is disposed as a sensor for determining the height and shape of the food.

[0003]

In the above-mentioned conventional configuration, when high-frequency heating cooking is performed by driving the magnetron, the fan device is operated at the rated rotation speed to cool the magnetron and the drive circuit of the magnetron by strong wind. ing. On the other hand, when the heater is driven to perform the oven heating cooking, when the fan device is operated at the rated rotation, the strong wind hits the outer peripheral surface of the cooking chamber, so that the internal temperature of the cooking chamber does not rise to the target temperature. Sometimes.

[0004] In such a case, if the fan device is stopped, the cooking chamber is not cooled, so that the internal temperature of the cooking chamber rises sufficiently to the target temperature. However, when the fan device is stopped, heat is transmitted from the cooking chamber side to the machine room side, and the components are densely arranged in the machine room, and the ventilation property is poor and the natural cooling function is weak, so the components in the machine room are not. Temperature rises. In this case, for example, an optical sensor among the above components has a relatively high upper limit temperature (heat-resistant temperature), and thus has a problem that the upper limit temperature is exceeded.

On the other hand, a configuration in which the fan device is operated at a low speed is considered. With this configuration, the components such as the optical sensor can be cooled by the weak wind generated by the fan device, and the components such as the optical sensor do not exceed the upper limit temperature. In addition, since the weak wind only hits the outer peripheral surface of the cooking chamber, it is possible to sufficiently raise the internal temperature of the cooking chamber to the target temperature.

On the other hand, in the oven grill range having such a configuration, a sensor chamber is provided adjacent to the other side wall of the cooking chamber, and for example, an optical sensor is disposed inside the sensor chamber. In this case, an opening is provided on the outer wall of the sensor chamber above the sensor,
The warm air around the optical sensor in the sensor chamber is discharged to the outside through the opening, so that the optical sensor is naturally cooled and does not exceed the upper limit temperature.

However, in the case of the above configuration, when the fan device is rotated at a low speed as described above, the weak wind generated by the fan device hits the outer peripheral surface of the cooking chamber and is heated, and then flows into the sensor chamber. As a result, since the optical sensor is heated, a problem that the temperature of the optical sensor exceeds the upper limit temperature occurs. For this reason, there is a strong demand for solving the above problems.

[0008] Therefore, an object of the present invention is to allow the temperature inside the cooking chamber to be sufficiently raised during heating cooking by the heater, to allow the components inside the machine room to be sufficiently cooled, and to allow the inside of the sensor room to be cooled. An object of the present invention is to provide a cooking device capable of sufficiently cooling a sensor.

[0009]

Means for Solving the Problems A cooking device according to the present invention comprises:
A heating cooker comprising: a heater for heating food in a cooking chamber; and a fan device provided adjacent to one side wall of the cooking chamber for cooling various components in a machine room. A sensor chamber is provided adjacent to the other side wall of the cooking chamber and includes a sensor chamber in which a sensor is disposed, and an opening provided on the outer wall of the sensor chamber above the sensor is provided. An operation control unit that includes a partition member that blocks air blown out of the machine room from entering the sensor room when the fan device is operated, and that operates the fan device at a low speed during heating and cooking by the heater. It is characterized by having.
In this case, it is also preferable that the operation control means be configured to intermittently operate the fan device on and off at a low speed.

[0010] A heating cooker according to another aspect of the present invention comprises:
A heater for heating the food cooking chamber, to cool the various components of the machine room provided adjacent to one side wall portion of the cooking chamber fan unit and the other side wall portion of the front Symbol cooking chamber to provided adjacent a sensor chamber in which the sensor is disposed within an opening provided in a position above the sensor in the outer wall of the sensor chamber, the fan device operation control turning on and off intermittently operated formed and means
Wherein when the fan device is operated,
Ventilation sent from the machine room side enters the sensor room.
This is provided with a partition member for blocking the above.

Further, it is conceivable to configure the sensor from the optical sensor. Furthermore, it is further preferable that a weight sensor is provided at an outer bottom portion of the cooking chamber, and a vent is provided at a part of the partition member of the partition member which is arranged below the sensor chamber.

[0012]

According to the above means, the fan device is operated at a low speed during heating and cooking by the heater.
The internal temperature of the cooking chamber can be sufficiently raised, and the components in the machine room can be sufficiently cooled. And since the structure which provided the partition member which shuts off the ventilation blown out from the machine room side when operating a fan apparatus into a sensor room is provided, the warm air which hit the outer peripheral surface of the cooking chamber and was warmed Never enter. For this reason, the sensor arranged in the sensor room is sufficiently cooled by natural cooling. In this case, if the operation of the fan device is controlled so as to perform the on-off intermittent operation at a low speed, the temperature in the cooking chamber can be more sufficiently increased, and the components in the machine room can be more sufficiently cooled. Even if the configuration of the heating cooker becomes complicated, even if the partition member cannot completely prevent the flow of air from the machine room into the sensor room, the fan device Since the sensor in the sensor room is naturally cooled when is turned off, the sensor in the sensor room can be more sufficiently cooled.

[0013] On the other hand, since the operation is controlled so that the fan device is intermittently operated on and off, the internal temperature of the cooking chamber can be sufficiently raised by appropriately setting the on / off ratio of the intermittent operation of the fan device. Can be. Then, the components in the machine room can be sufficiently cooled by the air generated when the fan device is turned on. Further, when the fan device is off, the sensor in the sensor chamber can be sufficiently cooled by natural cooling.

In the case of this configuration, if a configuration is provided in which a partition member is provided to block the air blown from the machine room into the sensor room when the fan device is operated, even when the fan device is on, Since the warm air heated on the outer peripheral surface of the heating cooking chamber does not substantially enter the sensor room, the sensors in the sensor room can be more sufficiently cooled by natural cooling.

Further, if a weight sensor is provided on the outer bottom of the cooking chamber and a vent is provided in a part of the partition member of the partition member disposed below the sensor chamber, the surrounding area of the weight sensor becomes warm. Since the air enters the sensor chamber through the ventilation port and is discharged to the outside through the upper opening of the outer wall of the sensor chamber, the weight sensor can be sufficiently cooled by natural cooling. it can.

[0016]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is applied to an oven grill range will be described below with reference to the drawings. First, in FIGS. 1 and 2 showing the entire configuration of the oven grill range, the range main body 1 is configured by disposing an inner box 3 inside an outer box 2, and the inside of the inner box 3 is heated by a cooking chamber. 4
And A machine room 5 is provided adjacent to a right side wall portion 4a which is one side wall portion of the cooking chamber 4, and a sensor is provided adjacent to a left side wall portion 4b which is the other side wall portion of the cooking chamber 4. A chamber 6 is provided. The front opening of the cooking chamber 4 is configured to be opened and closed by a door 7. An operation panel 8 is provided at the right end of the front surface of the range body 1 (on the front side of the machine room 5).

A heater, for example, a hot air generator 9 is provided on the back of the cooking chamber 4. The hot air generator 9 includes a casing 10 and a hot air heater 11.
, A hot air fan 12 and a hot air fan motor 13 for rotating the hot air fan 12. The hot air generated by the hot air generation device 9 is circulated and supplied into the cooking chamber 4 so that the food contained in the cooking chamber 4 is oven-heat-cooked. A large number of ventilation holes for circulating and supplying hot air are formed in the rear wall of the cooking chamber 4.

Further, on the upper surface side of the upper wall portion 4c of the cooking chamber 4, a flat heater 14 for grill cooking is arranged, and as shown in FIG. An interior light 15 for illumination is provided. A turntable motor 16 (see FIG. 10) is provided on the lower surface side of the lower wall portion 4d of the cooking chamber 4, and a turntable (not shown) is rotationally driven by the turntable motor 16. Has become. Then, as shown in FIG. 1, the weight sensor 17 for detecting the weight of the food placed on the turntable is connected to the lower wall portion 4 of the cooking chamber 4.
d is disposed on the lower surface side.

On the other hand, various parts are arranged in the machine room 5 as shown in FIG. Specifically, the magnetron 18 is disposed at a substantially central portion on the outer surface side of the right side wall portion 4 a of the heating cooking chamber 4, and electrical components such as the high-frequency transformer 19 are disposed on the bottom side, and include the magnetron 18. A fan device 20 for cooling various components is provided on the rear side. The magnetron 18 supplies high-frequency waves (microwaves) to the inside of the cooking chamber 4 to cook the food in the cooking chamber 4 by high-frequency heating. The fan device 20 includes a cooling fan 21 and a cooling fan motor 22 for driving the cooling fan 21 to rotate.

Further, in the machine room 5, as shown in FIG. 3, the first optical sensor substrate 23 and the first optical sensor substrate 23 are provided on the outer side of the right side wall 4a of the cooking chamber 4 on the rear side of the magnetron 18. Two optical sensor boards 24 are provided, and a ventilation duct 25 is provided in front of the magnetron 18. As shown in FIG. 5, four light emitting elements 26 and three light emitting elements 26 are provided on the two light sensor boards 23 and 24, respectively. Then, in order to sufficiently cool these light emitting elements 26, as shown in FIGS. 3 and 5, the two light sensor substrates 23 and 24 are used.
A wind direction plate 27 is disposed at the rear. In this case, the blast generated by the fan device 20 is
The light guide elements 7 guide the light-emitting elements 26 of the respective optical sensor substrates 23 and 24 efficiently.

Further, a blower fan device is built in the blower duct 25. The blower fan motor 28 (see FIG. 10) of this blower fan device
Is driven to conduct electricity during high-frequency heating cooking by means of, so that outside air is blown into the cooking chamber 4 during the cooking.

On the other hand, in the sensor chamber 6, as shown in FIG. 4, a third optical sensor board 29 is disposed on the front upper portion on the outer surface side of the left side wall 4b of the cooking chamber 4, and A fourth optical sensor substrate 30 is provided at a substantially central portion on the outer surface side of the portion 4b, and a fifth optical sensor substrate 31 is provided at a lower rear portion on the outer surface side of the left side wall portion 4b. Four light receiving elements 32 are provided on the third optical sensor substrate 29, and four light receiving elements 32 and four light emitting elements 26 of the first optical sensor substrate 23 are connected to each other. A pair of transmissive optical sensors are configured. Further, three light receiving elements 32 are provided on the fifth optical sensor substrate 31, and the three light receiving elements 32 and the three light emitting elements 26 of the second optical sensor substrate 23 are provided. , Three pairs of transmissive optical sensors are configured. A height sensor 33 for determining the height of the food from the seven pairs of translucent optical sensors is configured.

The fourth optical sensor substrate 30 includes:
A light emitting element 34 and a light receiving element 35 are provided, and the light emitting element 34 and the light receiving element 35 constitute a reflection type optical sensor. A shape sensor 36 for determining the shape of food from the reflection type optical sensor is configured. Note that an exhaust duct 37 is provided in the upper part of the sensor chamber 6.
The air in the cooking chamber 4 is discharged from the rear side of the outer box 2 through the exhaust duct 37. In the exhaust duct 37, a gas sensor 38 for detecting gas such as water vapor generated from food, and an alcohol sensor 39 for detecting alcohol gas generated from food are provided. Also, as shown in FIG. 2, an oven temperature sensor 40 for detecting the temperature in the oven at the time of oven heating and cooking, and a food at the time of grill heating and cooking are provided at the inner front side of the left side wall 4b of the cooking chamber 4. A grill temperature sensor 41 that detects the temperature of the grill is provided.

As shown in FIGS. 1, 2, 4 and 6, the upper left end of the upper wall 4c of the cooking chamber 4 has
An upper partition plate 42 is provided as a partition member so as to partition a space between the outer box 2 and the inner box 3. In addition, a lower partition plate 43 as a partition member is disposed on the lower left end portion of the lower wall portion 4 d of the cooking chamber 4 so as to partition the space between the outer box 2 and the inner box 3. In this case, as indicated by arrows in FIG. 6, the air blown out from the machine room 5 side when the fan device 20 is operated can enter the sensor room 6 by the upper partition plate 42 and the lower partition plate 43. It is configured to be shut off.

Here, as a structure for cooling the optical sensor, that is, each element in the sensor chamber 6, as shown in FIG. 6, the left wall of the sensor chamber 6 (the left wall 2a of the outer box 2) An exhaust port 44 having a large number of through holes is formed as an opening, and an intake port 45 having a large number of through holes is formed in a lower wall portion of the sensor chamber 6 (a lower wall portion 2b of the outer box 2). ing. Specifically, the exhaust port 44 is formed almost entirely on the left side wall 2a of the outer box 2 as shown in FIG. The intake port 45 is specifically formed at the left end portion of the lower surface wall 2b of the outer box 2 as shown in FIG.

A vent 46 having a large number of through holes is also formed in a portion corresponding to the cooking chamber 4 and a portion corresponding to the machine room 5 in the lower wall portion 2b of the outer box 2. These vents 46 serve as exhaust ports when the fan device 20 is operated, and serve as intake ports when the fan device 20 is not operated. Further, as shown in FIG. 9, a large number of through holes are formed in the rear wall portion 2c of the outer box 2. When the fan device 20 is operated, the through hole at a portion corresponding to the machine room 5 among the many through holes serves as the intake port 47. The central part of the through holes corresponding to the heating cooking chamber 4 serves as an air inlet 48 for introducing outside air for cooling the hot air generator 9, while
The remaining peripheral through-holes serve as common exhaust ports 49.

By the way, as shown in FIG. 4, a vent 43a is provided in a part of the lower partition plate 43, for example, in the latter half. In this case, the warmed air around the weight sensor 17 enters the sensor chamber 6 through the ventilation port 43a, and is further discharged to the outside through the exhaust port 44 in the left side wall of the sensor chamber 6. Is configured.

In FIG. 10 showing the electrical configuration,
The control circuit 50, which is operation control means, includes a microcomputer, and stores a control program for controlling the operation of the entire oven grill range in an internal memory. The control circuit 50 includes an operation panel 8
Switch signals from various switches 51 provided in the sensor, weight sensor 17, gas sensor 38, alcohol sensor 39, oven temperature sensor 40, grill temperature sensor 4
1. It is configured to receive each detection signal from a room temperature sensor 52 which is provided in the range main body 1 and measures the room temperature of the room where the range main body 1 is arranged. Then, the control circuit 50 supplies a drive control signal for driving each light emitting element to an optical sensor circuit 53 having each element of the height sensor 33 and the shape sensor 34, and controls each light reception of the optical sensor circuit 53. Each light receiving signal is received from the element.

The control circuit 50 includes various indicators 54 provided on the operation panel 8, a turntable motor 16, a cooling fan motor 22, a magnetron 18, a heater for hot air, based on the control program and the various signals described above. 1
1. The configuration is such that the hot air fan motor 13, the flat heater 14, the interior light 15, and the blower fan motor 28 are each driven and controlled via a drive circuit 55.

Next, the operation of the above configuration will be described with reference to FIGS.
4 will also be described. First, when the oven heating cooking is performed by the hot air generator 9, the heater 11 for hot air and the fan 12 for hot air are energized and driven to circulate and supply the hot air into the cooking chamber 4, and the inside temperature of the cooking chamber 4 is reduced. To rise.
Then, after the internal temperature rises to the set temperature, the hot air heater 11 and the hot air fan 12 are controlled to cut off the power so that the internal temperature is maintained substantially equal to the set temperature. I have. During the above-mentioned oven heating cooking, the fan device 20 is configured to operate at a low speed rotation. Specifically, as shown in FIG.
The cooling fan motor 22 of the fan device 20 is set to, for example, 110
At the rotation speed of 0 rpm, it is controlled so that the on / off intermittent operation is performed. In this case, the on / off intermittent operation is to repeatedly perform an intermittent operation that is turned on for a time t0 and turned off for a time (T-t0). In this case, the time t0 is set to, for example, 20 seconds, and the time T is set. For example, it is set to 30 seconds.

Since the fan device 20 is operated intermittently on and off at a low speed as described above, the temperature in the cooking chamber 4 can be sufficiently increased during the cooking by the oven, and the machine room 5 can be heated. The components inside can be cooled sufficiently. Specifically, as shown by a curve P1 in FIG. 12, the internal temperature of the cooking chamber 4 sufficiently rises to the rated temperature of 280 ° C. Further, as shown by a curve Q1 in FIG. 14, the temperature of each light emitting element of the optical sensor (height sensor 33), which is a component in the machine room 5, is maintained at a temperature lower than the upper limit temperature 125 ° C. Accordingly, each light emitting element can be sufficiently cooled.

Further, in the case of the present embodiment, an upper partition plate 42 and a lower partition plate 43 are provided above and below the sensor chamber 6, and the upper partition plate 42 and the lower partition plate 43 are used by the machine room 5.
Since the air blown out from the side is blocked from entering the sensor chamber 6, warm air that has hit the outer periphery of the cooking chamber 4 and is warmed does not enter the sensor chamber 6. Therefore, the light emitting elements of the optical sensors (the height sensor 33 and the shape sensor 34) disposed in the sensor chamber 6 are sufficiently cooled by natural cooling as shown in FIG. Specifically, as shown by a curve R1 in FIG. 13, the temperature of the light receiving element and the light emitting element of the optical sensor (the height sensor 33 and the shape sensor 34) in the sensor chamber 5 is lower than the upper limit temperature 90 ° C. As a result, the light receiving element and the light emitting element can be sufficiently cooled.

In the above embodiment, the weight sensor 17 is provided at the outer bottom of the cooking chamber 4 and the lower partition plate 43 is provided.
The air vent 43a is provided in a part (the latter half) of the sensor chamber 6, so that warm air around the weight sensor 17 enters the sensor chamber 6 through the air vent 43a, and further, the outer wall of the sensor chamber 6 Is discharged to the outside through an exhaust port 44 which is an opening at the upper part of the device. Therefore, the fan device 2
The weight sensor 17 can be sufficiently cooled by natural cooling without operating the zero sensor.

On the other hand, when high-frequency heating cooking is performed by the magnetron 18, the fan device 20 is configured to perform a rated rotation operation. Specifically, as shown in FIG. 11, the cooling fan motor 22 of the fan device 20 is controlled so as to continuously operate at a rated rotation speed of, for example, 2500 rpm. By operating the fan device 20 at the rated rotation in this manner, the magnetron 17 and the like can be cooled by strong wind.

By the way, an experiment was conducted in which the fan device 20 was operated at the rated rotation when the oven heating cooking was performed by the hot air generator 9. According to this experiment, the internal temperature of the cooking chamber 4 rises only up to about 250 ° C. as shown by the curve P2 in FIG.
It can be seen that the temperature does not rise to 0 ° C. As shown by a curve Q2 in FIG. 14, the temperature of each light emitting element of the optical sensor (height sensor 33) in the machine room 5 is maintained at a temperature lower than the upper limit temperature of 125 ° C. Further, as indicated by a curve R2 in FIG. 13, the temperatures of the light receiving element and the light emitting element of the optical sensor (the height sensor 33 and the shape sensor 34) in the sensor chamber 5 are maintained at a temperature lower than the upper limit temperature 90 ° C. You.

In the above-described embodiment, the operation is controlled so that the fan device 20 is intermittently operated at a low speed during the oven heating cooking. Instead, the fan device 20 is merely operated at a low speed. It is good also as composition. With this configuration as well, the internal temperature of the cooking chamber 4 sufficiently rises to the rated temperature of 280 ° C. as shown by the curve P3 in FIG. Further, as shown by a curve Q3 in FIG. 14, the temperature of each light emitting element of the optical sensor (height sensor 33) in the machine room 5 is maintained at a temperature lower than the upper limit temperature of 125 ° C. The element can be sufficiently cooled. Further, in FIG.
As shown by 3, the temperature of the light receiving elements and light emitting elements of the optical sensors (the height sensor 33 and the shape sensor 34) in the sensor chamber 5 is maintained at a temperature lower than the upper limit temperature 90 ° C. Further, it can be seen that the light emitting element can be sufficiently cooled. The low-speed rotation speed in this case is appropriately determined by experiments so as to obtain the above-mentioned temperature curves.

On the other hand, in the above embodiment, the upper partition plate 42 and the lower partition plate 43 are provided at the upper and lower portions of the sensor chamber 6, but the upper partition plate 42 and the lower partition plate 43 are not provided (ie, the conventional configuration). Assuming that the fan device 20 is rotated at a low speed during oven heating cooking, the temperatures of the light receiving element and the light emitting element of the optical sensor (the height sensor 33 and the shape sensor 34) in the sensor chamber 5 are indicated by a curve R4 in FIG. Thus, the temperature rises to a temperature higher than the upper limit temperature of 90 ° C., which indicates that the light receiving element and the light emitting element cannot be sufficiently cooled.

In addition, the fan device 2 is used for cooking by heating in an oven.
In the case where the experiment for stopping 0 is performed, as shown by the curve P4 in FIG. 12, the internal temperature of the cooking chamber 4 rises sufficiently to the rated temperature of 280 ° C. However, as shown by a curve Q4 in FIG. 14, the temperature of each light-emitting element of the optical sensor (height sensor 33) in the machine room 5 has an upper limit temperature of 125 ° C.
The temperature rises to a higher temperature than that, and it can be seen that natural cooling cannot sufficiently cool each light emitting element. And
As shown by a curve R3 in FIG. 13, the temperature of the light receiving element and the light emitting element of the optical sensor (the height sensor 33 and the shape sensor 34) in the sensor chamber 5 is maintained at a temperature lower than the upper limit temperature 90 ° C. This shows that the light receiving element and the light emitting element can be sufficiently cooled by natural cooling.

On the other hand, in the above embodiment, the operation is controlled so that the fan device 20 is intermittently operated at a low speed during the oven heating cooking. Instead, the fan device 20 is intermittently operated at a rated speed. It is good also as a structure to make it. With this configuration, the internal temperature of the cooking chamber 4 can be sufficiently increased to the rated temperature of 280 ° C. Also, an optical sensor (height sensor 33) in the machine room 5
Can be maintained at a temperature lower than the upper limit temperature of 125 ° C., and each light emitting element can be sufficiently cooled. Further, the temperature of the light receiving element and the light emitting element of the optical sensor (the height sensor 33 and the shape sensor 34) in the sensor chamber 5 can be maintained at a temperature lower than the upper limit temperature 90 ° C. Can be cooled. In this case, the ratio between the on-time and the off-time of the on-off intermittent operation is appropriately determined by an experiment so as to obtain the above-mentioned temperature change. Further, in the case of this configuration, the fan device 20 is configured to perform the on-off intermittent operation at the rated rotation, but may be configured to perform the on-off intermittent operation at the rotation speed lower than the rated rotation.

In each of the above embodiments, the sensor chamber 6
Although the upper partition plate 42 and the lower partition plate 43 are provided in the upper and lower portions, the upper partition plate 42 and the lower partition plate 43 are not provided. good. According to this configuration, the internal temperature of the heating cooking chamber 4 can be sufficiently increased by appropriately setting the ratio between the on-time and the off-time of the intermittent operation of the fan device 20 and the rotation speed of the fan device 20. Then, the components (in particular, the optical sensor) in the machine room 5 can be sufficiently cooled by the air generated when the fan device 20 is turned on. In addition, fan device 2
When 0 is off, the optical sensor in the sensor chamber 6 can be sufficiently cooled by natural cooling.

In each of the above embodiments, the sensor chamber 6
Although the present invention has been applied to a configuration in which an optical sensor is provided as a sensor therein, it may be applied to a configuration in which an ultrasonic sensor capable of determining the height and shape of food is provided instead.

[0042]

As is apparent from the above description, the present invention provides a sensor chamber adjacent to the other side wall of the cooking chamber, and an opening located above the sensor on the outer wall of the sensor chamber. Section is provided, a partition member is provided to block air blown from the machine room side into the sensor chamber when the fan device is operated, and the fan device is configured to be operated at low speed rotation during heating cooking by the heater. Therefore, at the time of heating cooking by the heater, it is possible to sufficiently raise the temperature in the cooking chamber of the heating chamber, sufficiently cool the components in the machine room, and sufficiently cool the sensors in the sensor room. It has excellent effects. In the case of this configuration, when the operation of the fan device is controlled so as to be intermittently operated on and off at a low speed, the internal temperature of the cooking chamber can be more sufficiently increased, and the components in the machine room can be more sufficiently cooled. In addition, even if the structure of the heating cooker becomes complicated, even if the partition member cannot completely prevent the flow of air from the machine room into the sensor room, the fan When the device is turned off, the sensors in the sensor room are naturally cooled, so that the sensors in the sensor room can be more sufficiently cooled.

In addition, a heater for heating food in the cooking chamber
Provided adjacent to one side wall of the cooking chamber.
Equipped with a fan device to cool various parts in the
In addition, it is provided adjacent to the other side wall of the cooking chamber,
A sensor chamber in which a sensor is disposed,
Located above the sensor on the outer wall of the
Opening, the intermittent operation of the fan device on and off
Operating control means for controlling
When the equipment is operated, the
A partition member for blocking wind from entering the sensor chamber;
Heating configuration when heating with a heater.
The inside temperature of the room can be raised sufficiently,
Parts in the machine room can be cooled sufficiently, and the sensor
The indoor sensors can be sufficiently cooled by natural cooling.
You.

On the other hand, a weight sensor is provided at the outer bottom of the cooking chamber, and a vent is provided at a part of the partition member of the partition member which is arranged below the sensor chamber. Since the warmed air enters the sensor chamber through the ventilation port and is further discharged to the outside through the upper opening of the outer wall of the sensor chamber, the weight sensor is sufficiently cooled by natural cooling. Can be.

[Brief description of the drawings]

FIG. 1 is a front view of an oven grill range showing one embodiment of the present invention.

FIG. 2 is a cutaway top view of an oven grill range.

FIG. 3 is a cutaway right side view of the oven grill range.

FIG. 4 is a broken left side view of the oven grill range.

FIG. 5 is a perspective view of an optical sensor substrate and a wind direction plate.

FIG. 6 is a longitudinal sectional side view around the sensor chamber.

FIG. 7 is a left side view of the outer box.

FIG. 8 is a bottom view of the outer box.

FIG. 9 is a rear view of the outer box.

FIG. 10 is a block diagram.

FIG. 11 is a time chart showing the rotation speed of the cooling fan motor and the cut-off power control.

FIG. 12 is a graph showing a change in the internal temperature of the cooking chamber;

FIG. 13 is a graph showing a change in temperature of an optical sensor in a sensor room.

FIG. 14 is a graph showing a change in temperature of an optical sensor in a machine room.

[Explanation of symbols]

1 is a range body, 2 is an outer box, 4 is a cooking chamber, 5 is a machine room, 6 is a sensor room, 9 is a hot air generator (heater), 11
Is a hot air heater, 12 is a hot air fan, 13 is a hot air fan motor, 14 is a flat heater, 17 is a weight sensor, 1
8 is a magnetron, 19 is a high-frequency transformer, 20 is a fan device, 21 is a cooling fan, 22 is a cooling fan motor,
23 is a first optical sensor substrate, 24 is a second optical sensor substrate, 26 is a light emitting element, 27 is a wind direction board, 29 is a third optical sensor substrate, 30 is a fourth optical sensor substrate, and 31 is a fifth optical sensor substrate. Optical sensor substrate, 32 is a light receiving element, 33 is a height sensor, 34
Is a light emitting element, 35 is a light receiving element, 36 is a shape sensor, 42
Is an upper partition plate (partition member), 43 is a lower partition plate (partition member), 44 is an exhaust port (opening), 45 is an intake port, 46 is a vent, 47 is an intake, 48 is an intake, and 49 is an intake. exhaust port,
Reference numeral 50 denotes a control circuit (operation control means).

Claims (5)

(57) [Claims] 1. A heater for heating food in a cooking chamber; a fan device for cooling various components in a machine room provided adjacent to one side wall of the cooking chamber; A sensor chamber provided adjacent to the other side wall and having a sensor disposed therein, an opening provided on the outer wall of the sensor chamber above the sensor, and the fan device was operated. A partition member for blocking air blown from the machine room side from entering the sensor room, and operation control means for causing the fan device to rotate at a low speed during heating and cooking by the heater. Heating cooker. 2. The cooking device according to claim 1, wherein the operation control means causes the fan device to perform an on-off intermittent operation at a low speed. 3. A heater for heating food in a cooking chamber.
Provided adjacent to one side wall of the cooking chamber
A fan device for cooling various components in the machine room,
Provided adjacent to the other side wall of the cooking chamber,
The sensor room where the sensor is located, and the outer wall of the sensor room
Opening provided above the sensor at
Operation control for intermittently operating the fan device on and off
Means, the fan unit is sent out from the machine room side when the fan device is operated.
Partition for blocking the blown air from entering the sensor chamber
A heating cooker comprising a member. 4. A sensor according to claim 1, wherein said sensor is an optical sensor.
4. Cooking according to any one of claims 1 to 3, characterized in that
vessel. 5. A weight provided at an outer bottom of the cooking chamber.
An amount sensor and a lower part of the sensor chamber of the partition member
And a vent provided in a part of the partition member.
The heating control according to any one of claims 1 to 4, wherein
Master.