JPH1114067A - Cooking system - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To uniformly thaw-cook a food, and shorten the time required for thaw-cooking. A freezer (2) and a microwave oven (3) are connected by an air supply duct (4) and a return duct (5). Switching dampers 18 and 19 that are opened when the thawing mode with cool air is executed in the microwave oven 3 are provided at the upper connection port 6a and the lower connection port 6b of the freezer 2. A mixer 37 for mixing the cool air sent from the freezer 2 and the outside air at an arbitrary mixing ratio by adjusting the opening degree of the outside air intake damper 39 is provided in the middle of the air supply duct 4. According to the cooking item designated by the thawing cooking key of the operation panel 31, the thawing mode with cold air is executed in which the microwave is radiated at a low output while introducing the cold air into the cooking chamber, and the room temperature sensor 29 and the room temperature sensor 29 at that time are executed. The opening degree of the outside air intake damper 39 is controlled based on the temperature detected by the cold air temperature sensor 44.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heating and cooking system capable of improving the finished state of thawing cooking for thawing frozen food.

[0002]

For example, a microwave oven is provided with a function of thawing (raw thawing) for thawing a frozen food (food) by microwave irradiation. Such cooking using microwaves can originally achieve uniform heating of the food, but in thawing cooking, if simple microwave irradiation is performed, A uniform finished state may not always be obtained. This is considered to be due to the following circumstances.

[0003] That is, the atmosphere temperature in the heating cooking chamber at the time of thawing cooking may be relatively high, and for example, the frozen state of the food at the start of thawing cooking is uneven, and for example, the center of the food is hard. In some cases, the periphery of the food is already thawing despite being frozen. Furthermore, there are circumstances where microwaves are concentrated in the first water. For this reason, the end (peripheral part) of the food
May be thawed first, resulting in uneven thawing in which the central portion remains frozen, and in severe cases, boiling may occur at the end of the food.

Therefore, conventionally, in order to prevent the above-described uneven thawing cooking as much as possible, microwaves are intermittently applied to the frozen food and the thawing is slowly performed over a long period of time. I was In this way, the time for heat conduction inside the food is ensured, and uniform thawing cooking is attempted.

[0005] However, the method of irradiating microwaves at a low output and slowly thawing as described above has a problem that thawing cooking requires a longer time than necessary. In addition, among the foods to be thawed, for example, meat and shrimp used for stir-fry are cooked separately after that, so there may be some thawing unevenness. It is not desirable for such sashimi to be eaten with meat or sliced meat for shabu-shabu that such thawing unevenness occurs.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has as its object to provide a heating cooking system capable of performing uniform thawing cooking on a food and shortening the time required for thawing cooking. To be.

[0007]

The present inventor has conducted various tests and studies to prevent uneven thawing of food in thawing cooking using microwaves. As a result, the cooking room is kept in a low-temperature atmosphere, and in this state, the cooking is irradiated with microwaves to perform the thawing cooking in a completely new mode, whereby the periphery of the cooking is thawed first. It was confirmed that the whole food could be thawed uniformly and well. In this case, it is not preferable that the temperature of the atmosphere is too low even if it is low. It is effective to set the temperature in an appropriate temperature range.

[0008] The heating cooking system according to claim 1 of the present invention comprises:
A cooking chamber in which food is stored, microwave irradiation means for irradiating microwaves into the cooking chamber, a cool air generator for generating cool air, and introducing cool air from the cool air generator into the cooking chamber. And a mixer provided in the middle of the cool air introduction path for mixing the cool air from the cool air generator and the outside air.

According to this, at the time of thawing cooking, by supplying cool air from the cool air generator through the cool air introduction passage into the cooking chamber, the cooking room accommodated in the cooking chamber is kept at a low temperature atmosphere. An object can be irradiated with microwaves. In this state, the food in the heating cooking chamber is heated and cooked by the microwave in a state where the food is cooled from the surroundings by the cool air, so that the uniform thawing is performed without the ends being thawed first. Become like In this case, unlike the method of intermittently irradiating microwaves and heating slowly, thawing cooking does not take an unnecessarily long time.

Since a mixer for mixing the cool air from the cool air generator and the outside air is provided in the middle of the cool air introduction passage, for example, when the temperature of the cool air from the cool air generator is too low. In addition, the cold air and the outside air can be mixed and adjusted to an appropriate temperature, and then supplied into the cooking chamber. In addition, it is needless to say that normal heating cooking can be performed by irradiating the heating cooking chamber with microwaves.
It is also possible to perform thawing cooking without supplying cold air.

In this case, it is possible to provide a mixing ratio adjusting means for freely adjusting the mixing ratio between the cool air and the outside air in the mixer (the invention of claim 2). According to this, the mixing ratio can be automatically adjusted by the mixing ratio adjusting means as occasion demands. At this time, the mixing ratio adjusting means may be configured to adjust the mixing ratio in the mixer according to the item to be cooked (the invention of claim 3). It can be made appropriate according to.

Further, at this time, there are provided a cool air temperature detecting means for detecting the temperature of the cool air and an outside air temperature detecting means for detecting the temperature of the outside air, and the mixing ratio adjusting means is provided with a mixing ratio in the mixer based on the detected temperatures. Or an air-fuel mixture temperature detecting means for detecting the temperature of the air-fuel mixture mixed by the mixer, and mixing the mixture ratio adjusting means based on the detected temperature. The mixing ratio in the vessel can be adjusted (the invention of claim 5). According to these, the mixing ratio can be adjusted more precisely, and the ambient temperature in the cooking chamber can always be made appropriate.

Further, as a more specific method of adjusting the mixing ratio in the mixer, the opening degree of the damper for taking in outside air is adjusted (the invention of claim 6), and the opening / closing time of the damper for taking in outside air is adjusted. It can be performed by control (the invention of claim 7). In any case, the mixing ratio can be adjusted with a relatively simple configuration.

Further, the supply of cool air from the cool air generator into the heating cooking chamber may be configured to continue even after the cooking is completed until the food is taken out (the invention of claim 8). . According to this, even if the thawing cooking is completed, the food is kept at a low temperature until the food is taken out,
After the thawing cooking is completed, it is possible to prevent the thawing state from being excessively advanced due to the ambient temperature before taking out the food.

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the present invention is applied to a so-called built-in type cooking system incorporated in a system kitchen, for example, will be described below.
4, 6 and 8) will be described with reference to FIGS.

FIG. 1 schematically shows the entire configuration of a heating and cooking system 1 according to the present embodiment. Here, the heating and cooking system 1 includes a freezer 2 having a cool air generator as described later, and a microwave oven 3 having a heating chamber and a microwave supply means also described later. The connection is made by a duct 4 and a return duct 5. Although not shown in detail, the heating and cooking system 1 is incorporated in a cooking table of a system kitchen, and the freezer 2 and the microwave oven 3 can be used as independent devices, respectively. ing.

The freezer 2 includes a freezing storage room 7 in which a frozen storage (not shown) is accommodated in a main body 6 formed of an insulated box, and generates cold air of, for example, about -20.degree. Inside the freezing storage room 7 (or the air supply duct 4 side)
And a cold air generator 8 for supplying the cold air to the apparatus. An upper connection port 6a and a lower connection port 6b are formed vertically on the left wall of the main body 6 in the drawing. Further, the frozen storage room 7 is provided on the upper surface of the main body 6.
An opening / closing lid 9 for opening and closing is provided.

Although not shown in detail, the cool air generator 8 is mainly composed of a refrigerating cycle in which a compressor 10, a condenser, an evaporator 11, and the like are connected in a closed loop by a refrigerant pipe. Reference numeral 11 is provided in an evaporator chamber 12 formed on the right inner wall of the main body 6 in the drawing.
A cool air return port 13 is provided below the evaporator 11 at a wall portion on the front side (the freezer storage chamber 7 side) of the evaporator chamber 12 and is located above the evaporator 11. A cool air outlet 14 is provided. Further, the evaporator chamber 1
Inside 2, a fan device 15 for circulating cool air is provided.

Thus, by driving the fan device 15,
Air in the freezer storage room 7 is sucked from the cool air return port 13,
After being cooled through the evaporator 11, the cool air is circulated such that the cool air is blown out from the cool air outlet 14 into the frozen storage room 7. The cool air outlet 14 and the upper connection port 6a are connected by an upper connection pipe 16, and the cool air return port 13 and the lower connection port 6b are connected by a lower connection pipe 17. The base end of the air supply duct 4 is connected to the outer surface of the upper connection port 6a, and the return duct 5 is connected to the outer surface of the lower connection port 6b.
Are connected to each other.

Further, switching dampers 18 and 19 are provided at the upper connection port 6a and the lower connection port 6b, respectively. Thus, as described later, the microwave oven 3
When the thawing mode with cool air is executed in the above, the switching dampers 18 and 19 are opened, and the cool air generated by the cool air generator 8 is partially supplied into the freezing storage room 7 while the ducts 4 and 5 are being cooled. And is circulated to the microwave oven 3 side. When the thawing mode with cold air is not being executed, the switching dampers 18 and
19 is closed so that the cool air generated by the cool air generator 8 circulates in the freezer storage room 7.

Next, regarding the structure of the microwave oven 3,
This will be described with reference to FIGS. This microwave oven 3
As shown in FIG. 4 and the like, an oven box 21 is disposed in a main body 20 having a rectangular box shape.
The inside of 1 is a cooking chamber 22 in which a food (food) F is stored. In this case, a rotary plate 23 on which the food F is placed and which is driven to rotate by a motor (not shown) is provided at the inner bottom of the cooking chamber 22. In addition, a weight sensor 25 for detecting the load acting on the rotating shaft 24 of the rotating plate 23 and thus the weight of the food F is provided in the main body 20.

On the other hand, a machine room 26 is provided on the right side of the oven box 21. In the machine room 26, a magnetron 27 and a drive circuit (not shown) for the magnetron 27 are provided.
The microwave oscillated from the magnetron 27 is radiated to the cooking chamber 22 through the waveguide 28, thereby constituting a microwave irradiating means. Further, inside the main body 20, a room temperature sensor 29 as an outside air temperature detecting means for detecting a room temperature (temperature of outside air) is provided. As shown in FIGS. 1 and 5, a door 30 for opening and closing the front of the cooking chamber 22 is provided on the front of the main body 20, and the door 30 is located on the right of the door 30 and operates as described later. A panel 31 is provided.

The main body 20 is provided with an air supply side connection portion 32 for connecting the front end portion of the air supply duct 4 as shown in FIG. I have. As shown in FIG. 5, the air supply side connection portion 32 has a large number of punched holes 32a formed in a circular area on the back surface of the main body 20, and a thin cylindrical connection cylinder 37b surrounding the area. It is provided and configured. The distal end of the air supply duct 4 is fitted and connected to the connection cylinder 32b.

As shown in FIG. 5, on the left side of the main body 20, an exhaust-side connecting portion 33 for connecting the base end of the return duct 5 is provided. The exhaust side connection portion 33 is also provided with a large number of punched holes 3 in the circular area of the main body 20.
3a, and a thin cylindrical connecting cylinder 33b is provided so as to surround the area, so that the base end of the return duct 5 is fitted and connected to the connecting cylinder 33b. Has become.

On the other hand, as shown in FIG. 4, on the back wall of the oven box 21, an air supply port 34 composed of a number of punching holes is provided at a position corresponding to the air supply side connection portion 32. The air supply port 29 and the air supply side connection portion 32 are formed and connected by an air supply pipe (not shown). The left side wall of the oven chamber 21 has an exhaust port 35 formed of a number of punched holes at a position corresponding to the exhaust side connection portion 33.
Are formed, and the exhaust port 35 and the exhaust side connection portion 33 are connected by an exhaust pipe 36.

Thus, the switching damper 18 of the freezer 2
1 and 19 are opened, the cool air generation device 8 (refrigeration cycle and fan device 15) is driven, so that the cool air generated through the evaporator 11 is blown by the cool air as indicated by an arrow a in FIG. It is sent from the outlet 14 into the air supply duct 4 through the upper connection port 6a, and is supplied to the air supply side connection portion 3 of the microwave oven 3.
The air is supplied from the air supply port 34 into the cooking chamber 18 through the heating chamber 2. The air in the cooking chamber 18 is exhausted from the exhaust port 35, passes through the return pipe 5 via the exhaust pipe 36 and the exhaust-side connection portion 33, and returns from the lower connection port 6 b of the freezer 2 to the cool air return port 13. It is a cycle of being returned to.

As shown in FIG. 1, a mixer 37 for mixing the cool air sent from the freezer 2 and the outside air is provided in the middle of the air supply duct 4. As shown in FIG. 2, the mixer 37 has a rectangular box-shaped case 38.
The upstream side of the air supply duct 4 is connected to the right side wall of the case 38 in the figure, and the air supply duct 4 is
Is connected downstream. A rectangular outside air intake 38a is formed on the upper surface of the case 38, and a rectangular outside air intake damper 39 for opening and closing the outside air intake 38a is provided.

The outside air intake damper 39 is rotatably supported by the case 38 at the left side in the figure, and a damper driving device 40 as shown in FIG. 3 (not shown in FIG. 2). It is opened and closed by. In this case, the damper driving device 40 is provided with a gear portion 39a having a semicircular shape around the pivot at the end of the outside air intake damper 39, and a motor 42 is mounted on the case 38 via a mounting table 41. A gear 43 attached to a rotating shaft 42a of the motor 42 is configured to mesh with the gear portion 39a.

Thus, by driving the motor 42,
The outside air intake damper 39 rotates to open and close the outside air intake 38a. At this time, in the present embodiment, by controlling the rotation amount of the motor 42, the outside air intake 3
The opening degree of the opening 8a is adjusted, whereby the mixing ratio of cold air to outside air can be adjusted freely. In this case, when the opening is 0 degrees, the outside air intake 38a is closed and only the cool air is sent to the downstream side. When the opening is 90 degrees, the outside air intake 38a is fully opened and the air supply is performed. The upstream side of the duct 4 is substantially closed, so that cool air is not sent to the downstream side.

In this embodiment, as shown in FIG.
A cold air temperature sensor 44 is disposed in the air supply duct 4 on the upstream side of the mixer 37 and is a cool air temperature detecting means for detecting the temperature of the cool air. As will be described later in detail, a control device 45 composed of a microcomputer
When the thawing cooking is performed, the opening degree of the outside air intake damper 39 is adjusted by the control of the damper driving device 40 based on the cooking items and the detection temperatures of the room temperature sensor 29 and the cold temperature sensor 44. In addition, the mixing ratio between the cold air and the outside air is freely adjusted, and thus the mixing ratio adjusting means is configured.

On the other hand, as shown in FIG. 7, an operation panel 31 provided on the front of the microwave oven 3 has a range cooking key 46 for designating a range cooking (warm cooking) and a heating output at that time. An output adjustment key 47, a start key 48 and the like for switching are provided, and a thawing cooking key 49 for designating thawing cooking is provided. At this time, in the present embodiment, the thawing cooking key 49 is configured to specify a cooking item of the food to be thawed. In this case, it is ice cream (A), sashimi (B), shrimp or meat, and is made of teacup steamed. (C), and shrimp and meat (D) used for boiled and stir-fried foods. The operation panel 31 includes:
A display unit 50 for displaying time and the like is also provided.

As shown in FIG. 8, signals from various keys 46 to 49 of the operation panel 31 are input to a control device 45 disposed on the back side of the operation panel 31. I have. The control device 45 controls the magnetron 27 and the like based on a key input signal from the operation panel 31, a detection signal of the weight sensor 25, and the like, and heats food to a high temperature and cooks in a frozen state. Thaw cooking for thawing the object F is executed.
At this time, the heating cooking time is automatically set based on the weight detected by the weight sensor 25, for example. The control device 45 also controls the display on the display unit 50 of the operation panel 31.

The controller 45 receives temperature detection signals from the room temperature sensor 29 and the cold air temperature sensor 44. The control device 45 controls the motor 42 of the damper driving device 40 to adjust the opening degree of the outside air intake damper 39 of the mixer 37 as described above. Further, the control device 45 controls opening and closing of the switching dampers 18 and 19 of the freezer 2.

At this time, in this embodiment, the control device 45
When executing the thawing cooking for thawing the frozen food F, when the cooking items (A), (B) and (C) are selected, the switching dampers 18 and 19 of the freezer 2 are selected.
Is opened to execute a thawing mode with cool air in which microwaves are irradiated at a low output while introducing cool air into the cooking chamber 22. When the cooking item (D) is selected, the switching dampers 18 and 19 are closed to execute a normal temperature thawing mode in which the microwave is irradiated at a low output while the inside of the heating cooking chamber 18 is at a normal temperature. Needless to say, the switching dampers 18 and 19 are closed during normal heating cooking (during range cooking).

In the present embodiment, as will be described in the following description of the operation, the control device 39 transmits the cold air into the heating cooking chamber 22 during the execution of the thawing mode with the cold air, and the cooking item (the above-described item) is used. (A), (B), or (C)), the mixing ratio between the outside air and the cool air in the mixer 37 is adjusted so that the food F is at an appropriate temperature at the end of the thawing cooking. It is designed to adjust. At this time, based on the detected temperatures of the room temperature sensor 29 and the cold air temperature sensor 44, the damper driving device 40 is controlled so that the cool air introduced into the heating cooking chamber 22 becomes the target temperature, and the outside air intake is performed. The opening degree of the damper 39 is adjusted.

Further, in this embodiment, the supply of cold air from the freezer 2 into the cooking chamber 22 is continued until the food F is taken out of the cooking chamber 22 even after the thawing is completed. It is configured. Whether the food F is taken out of the cooking chamber 22 is determined based on, for example, detection of opening and closing of the door 30 and detection of a change in weight by the weight sensor 25.

Next, the operation of the above configuration will be described with reference to FIGS. When the user executes the thawing cooking of the food F, the food F in the frozen state (for example, −20 ° C.) is placed in the cooking chamber 22 of the microwave oven 3 as described above.
The start key 48 is turned on after the thawing cooking key 49 of the operation panel 31 is operated. in this case,
In operating the thawing cooking key 49, one of the four cooking items (A to D) is selected.

Here, when the thawing cooking is performed in the microwave oven 3 in a normal temperature (or high temperature) atmosphere in the heating cooking chamber 22, the end (peripheral portion) of the food F is thawed first, and the center portion of the food F is thawed. There is a possibility that thawing unevenness may occur due to the frost remaining. In this case, it is required that, among the cooked food F, raw sashimi be eaten without such thawing unevenness. In addition, after thawing, cooked or stir-fried meat or shrimp is used for meat or shrimp. If so, there may be some thawing irregularities.

The present inventor has conducted various tests and studies to prevent uneven thawing of the food F in thawing cooking using microwaves. As a result, the inside of the heating cooking chamber 22 is kept in a low-temperature atmosphere, and in that state, the thawing cooking mode with cool air of irradiating the microwaves to the food F is executed, so that the periphery of the food F is moved first. Thawing was prevented beforehand, and it was confirmed that the whole food F was thawed uniformly and well. In this case, it is not preferable that the temperature of the atmosphere is too low even if it is low. It is effective to set the temperature in an appropriate temperature range.

FIG. 9 shows four types of cooking items (A) to (D).
And the appropriate temperature after thawing cooking. That is, when the item to be cooked is ice cream (A), it is desirable that the temperature after the thawing cooking is about 0 ° C., whereby a soft and delicious state can be obtained to some extent. When sashimi (B), the temperature after thawing cooking is about 5 ° C
Is desirable, and thereby a delicious state can be obtained. Further, in the case of shrimp or meat (C) which is used as a bowl for steaming, it is desirable to finish the product at about room temperature without boiling at the ends. For shrimp or meat (D) used for boiled or stir-fried foods, there may be some uneven thawing.

The control device 45 comprises (A), (B) and (C)
When any one of the cooking items is selected, the switching dampers 18 and 19 of the freezer 2 are opened and the cooling air is introduced into the heating cooking chamber 22 while irradiating the microwave with a low output while thawing mode with cold air. Execute At this time, if the cool air in the freezer 2 is directly introduced into the cooking chamber 22, the temperature may be too low (for example, −20 ° C.). Therefore, in the present embodiment, the appropriate temperature as described above is obtained by mixing the cool air and the outside air in the mixer 37 provided in the middle of the air supply duct 4.

In this case, the mixing ratio between the cool air and the outside air can be adjusted by the mixer 37. Specifically, the opening degree of the outside air intake damper 39 controlled by the damper driving device 40 (motor 42) is controlled. Although the mixing ratio is adjusted by the adjustment, the opening degree is the smallest in the case of ice cream (A),
In the case of shrimp and meat (C) used as a bowl for steaming, etc., the opening is the largest, and in the case of sashimi (B), the opening is intermediate.

Further, in this embodiment, the control device 45
The opening degree of the outside air intake damper 39 is controlled based on the detected temperatures of the room temperature sensor 29 and the cold air temperature sensor 44. FIG. 10 shows a specific example of the opening degree of the outside air intake damper 39, which is representative of the case of the ice cream (A) (the target finish temperature is 0 ° C.). For example, if the detection temperature of the room temperature sensor 29 is medium temperature (0 to 30 ° C.) and the detection temperature of the cold air temperature sensor 44 is high temperature (0 ° C. or higher), the opening degree of the outside air intake damper 39 is set to 20 degrees. Thus, the opening degree of the outside air intake damper 39 is set in nine stages. If the detected temperature fluctuates during cooking,
Of course, the degree of opening is also changed according to the fluctuation.

Thus, the food F in the heating cooking chamber 22 is
In this method, heating is performed by microwaves in a state of being cooled from the surroundings by cold air, so that uniform thawing is performed without the edges being thawed first. Then, the ambient temperature at this time is set to an appropriate temperature according to the cooking item. In addition, unlike the method in which microwaves are applied intermittently to heat slowly, the thawing cooking does not take an unnecessarily long time.

As described above, even after the thawing cooking is completed, the supply of cool air from the freezer 2 into the cooking chamber 22 is continued until the food F is taken out of the cooking chamber 22. You. As a result, even if the thawing cooking is completed, the inside of the heating cooking chamber 22 is kept at a relatively low temperature until the food F is taken out. Can be prevented from proceeding excessively.

As described above, according to the present embodiment, in the case of performing the thawing cooking, if the thawing requires uniform thawing,
It is possible to execute the thawing cooking mode with cold air in which the microwave is applied to the food F while keeping the inside of the heating cooking chamber 22 at a low temperature atmosphere by the cool air from the freezer 2, thereby performing the thawing cooking in a good finished state. it can. in this case,
Unlike the method in which the microwaves are intermittently irradiated and heated slowly, the thawing cooking does not take an unnecessarily long time, and the time required for the thawing cooking can be shortened.

Since the mixer 37 for mixing the cool air and the outside air is provided in the middle of the air supply duct 4, if the temperature of the cool air from the freezer 2 is too low, the cool air and the outside air are mixed. After mixing to an appropriate temperature, the cooking chamber 2
2 can be supplied. At this time, in the present embodiment, the mixing ratio in the mixer 37 is adjusted according to the item to be cooked of the food F, so that the inside of the heating cooking chamber 22 is set to an appropriate temperature atmosphere according to the item to be cooked. Can,
Moreover, in the present embodiment, the mixing ratio in the mixer 37 is adjusted based on the detection of the room temperature sensor 29 and the cold air temperature sensor 44, so that the mixing ratio can be adjusted more precisely. The ambient temperature in the cooking chamber 22 can always be made appropriate.

Further, in this embodiment, as a more specific method of adjusting the mixing ratio in the mixer 37, the opening degree of the outside air intake damper 39 is adjusted by the control of the damper driving device 40. The mixing ratio can be adjusted with a relatively simple configuration. Further, even if the thawing cooking is completed, the inside of the heating cooking chamber 22 is maintained at a low temperature until the food F is taken out, so that the thawing state proceeds excessively in the time until the food F is taken out. It is possible to obtain the merit that it can be prevented beforehand.

FIG. 11 shows another embodiment of the present invention.
). This embodiment is different from the above-described embodiment in that the mixing ratio of the cool air and the outside air in the mixer 37 is adjusted not by adjusting the opening degree of the outside air intake damper 39 but by controlling the opening and closing time. There. Therefore, although not shown, the damper driving device that opens and closes the outside air intake damper 39 only needs to switch between the open state and the closed state, and has a simpler configuration using a solenoid or the like as a drive source instead of a motor or the like. Can be done.

FIG. 11 shows the time of the open state (how many seconds open during 30 seconds) when the opening and closing of the outside air intake damper 39 is controlled with, for example, 30 seconds as one cycle. (The target finish temperature is 0 ° C.). For example, if the detection temperature of the room temperature sensor 29 is medium temperature (0 to 30 ° C.) and the detection temperature of the cold air temperature sensor 44 is medium temperature (−20 to 0 ° C.), the opening time of the outside air intake damper 39 is 15 seconds ( Therefore, the opening time of the outside air intake damper 39 is set in nine steps such that the closing time is also 15 seconds. In such a configuration, the same operation and effect as in the above embodiment can be obtained.
In addition, the effect that the configuration of the damper driving device is further simplified can be obtained.

In the above embodiment, the room temperature sensor 29 and the cold air temperature sensor 44 are provided to control the opening degree and opening / closing time of the outside air intake damper 39 based on the detected temperatures. Instead of the room temperature sensor 29 and the cold air temperature sensor 44, for example, a temperature sensor for detecting the temperature of the air-fuel mixture is provided in the cooking chamber 22, and the opening degree of the outside air intake damper 39 is determined based on the temperature detected by the temperature sensor. Or the opening and closing time may be controlled (feedback control) (the invention of claim 5). According to this, in addition to the same effects as in the above embodiment, more precise adjustment of the mixing ratio can be performed, and the number of sensors can be reduced.

In addition, the present invention is not limited to the above embodiments. For example, the opening degree of the outside air intake damper 39 may be set only for the cooking item without performing the temperature detection. Also, regarding the configuration of the mixer (the configuration for adjusting the mixing ratio), various modifications can be considered.
The present invention can be appropriately changed and implemented without departing from the gist.

[0053]

As is apparent from the above description, according to the heating cooking system of the present invention, when performing thawing cooking, microwaves are irradiated while introducing cool air from a cool air generator into the heating cooking chamber. Since it is possible to execute the thawing cooking mode with cold air, it is possible to perform uniform thawing cooking on the food and shorten the time required for the thawing cooking, and furthermore, the cold air is introduced in the middle of the cold air introduction path. A mixer for mixing the outside air is provided, so that it is possible to mix the cold air and the outside air to an appropriate temperature, and then supply the mixture to the cooking chamber, which has an excellent practical effect. It is.

[Brief description of the drawings]

FIG. 1 shows an embodiment of the present invention, and is a diagram showing an entire configuration of a heating cooking system.

FIG. 2 is a perspective view of a mixer part.

FIG. 3 is a perspective view showing the damper driving device in an upside down state.

FIG. 4 is a longitudinal front view of a microwave oven.

FIG. 5 is a perspective view of the microwave oven from the left front.

FIG. 6 is a perspective view of the microwave oven from the right rear.

FIG. 7 is an enlarged front view of the operation panel.

FIG. 8 is a block diagram showing an electric configuration centering on a control device of a microwave oven.

FIG. 9 is a diagram showing a relationship between a cooking item and an appropriate temperature after thawing cooking.

FIG. 10 is a diagram illustrating a relationship between a detected temperature and an opening degree of a damper in thawing cooking of ice cream.

FIG. 11 shows another embodiment of the present invention, and is a diagram showing the relationship between the detected temperature and the opening / closing time of a damper in thawing cooking of ice cream.

[Explanation of symbols]

In the drawing, 1 is a heating and cooking system, 2 is a freezer, 3 is a microwave oven, 4 is an air supply duct (a cool air introduction path), 5 is a return duct, an 8-teeth cold air generator, 15 is a fan device, and 18 and 19.
Is a switching damper, 20 is a main body, 22 is a cooking chamber, 27 is a magnetron (microwave irradiation means), 29 is a room temperature sensor (outside air temperature detecting means), 31 is an operation panel, 37 is a mixer, and 39 is outside air intake Reference numeral 40 denotes a damper driving device, 44 denotes a cold air temperature sensor (cool air temperature detecting means), 45 denotes a control device, and 49 denotes a thawing cooking key.

Claims (8)

[Claims] 1. A cooking chamber in which food is stored, microwave irradiation means for irradiating microwaves into the cooking chamber, a cool air generator for generating cool air, and cooling air from the cool air generator. A heating / cooking system comprising: a cool air introduction passage for introducing into a heating cooking chamber; and a mixer provided at an intermediate portion of the cool air introduction passage for mixing cool air from the cool air generator and outside air. 2. The heating and cooking system according to claim 1, further comprising a mixing ratio adjusting means for freely adjusting the mixing ratio between the cool air and the outside air in the mixer. 3. The heating and cooking system according to claim 2, wherein the mixing ratio adjusting means adjusts a mixing ratio in the mixer according to a cooking item. 4. An air conditioner comprising: a cool air temperature detecting means for detecting a temperature of cold air; and an outside air temperature detecting means for detecting a temperature of outside air.
4. The cooking system according to claim 2, wherein the mixing ratio adjusting means adjusts the mixing ratio in the mixer based on the detected temperatures. 5. An air-fuel mixture temperature detecting means for detecting a temperature of the air-fuel mixture mixed by the mixer, wherein the mixing ratio adjusting means adjusts a mixing ratio in the mixer based on the detected temperature. The cooking system according to claim 2 or 3, wherein 6. The heating cooking system according to claim 2, wherein adjustment of the mixing ratio in the mixer is performed by adjusting an opening degree of a damper for taking in outside air. 7. The heating cooking system according to claim 2, wherein the adjustment of the mixing ratio in the mixer is performed by controlling the opening / closing time of a damper for taking in outside air. 8. The method according to claim 1, wherein the supply of cool air from the cool air generator to the cooking chamber is continued after the cooking is completed until the food is taken out. Cooking system.