JP2010040176A - Heating cooking appliance - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a heating cooking appliance capable of recognizing not only an occurrence or otherwise of an assembly fault of a base board but also pinpointing the kind of a wrong baseboard, if and in case assembly fault on a manufacturing process or the like occurs to a first baseboard and a second baseboard installed in the heating cooking appliance. <P>SOLUTION: The induction heating cooking appliance is equipped with an EEPROM 31 with each individual piece of information installed in its memory beforehand on a plurality of base boards including an operation display base board 13 and a heating control base board 17, as well as combined information for a set of base boards corresponding to each of different models of the induction heating cooking appliance. A microcomputer for corrigenda detection 22 detects each piece of the information contained in the operation display base board 13 and the heating control base board 17, and also decides if these detected pieces of information are combination faults different from the pieces of combination information installed or otherwise. In case of the combination fault, it displays on an emission display portion 15 each individual piece of information of the operation display base board 13 and the heating control base board 17. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a cooking device provided with a first substrate and a second substrate.

Conventionally, many types of cooking devices have been developed and put into the market in order to meet the diversifying market needs. In such a development situation, in order to suppress an increase in development costs, the parts that can be shared by hardware and software are shared as much as possible, and only different parts for each model are newly designed. Yes.

  However, if the size of the product or part is the same in a plurality of models, there is a high possibility that an assembly error will occur at the manufacturing stage. Specifically, the heating cooker includes a plurality of substrates such as a main control substrate and an operation / display control substrate, and there is a possibility that a substrate different from the original model may be assembled. When this assembly mistake occurs, not only the operation different from the original product specification is executed when the operation key is operated, but it is also assumed that the substrate is broken depending on the output (model) of the cooking device.

Therefore, Patent Document 1 discloses the following cooking device in order to easily recognize the occurrence of an error when an assembly error occurs at the manufacturing stage or the like. That is, in this cooking device (microwave oven), an operation panel unit is arranged below the door that opens and closes the opening on the front surface of the main body, and the operation microcomputer on the operation control board arranged inside the door has model information. The model information set by the setting means is transmitted to the heating microcomputer of the heating control board on the main body side. The heating microcomputer is configured to determine whether or not the transmitted model information matches the model information set in advance, and if both are different, a notification to that effect is given by a buzzer or a display. ing.
JP 2006-349290 A

  However, in the heating cooker of Patent Document 1, when the mismatch of the model information is notified by the indicator or buzzer, the operator can only recognize that an assembly error has occurred. It is necessary to check the model.

  The model information of the operating microcomputer is determined based on the model information of the heating microcomputer, and it is assumed that a regular heating microcomputer board is assembled. That is, in a cooking device having a plurality of substrates, any substrate may cause an assembly error that does not correspond to the model of the cooking device. In the conventional configuration, each of the assembled components is assembled. Actually, it is impossible to specify which board is wrong as well as the type of the board. It should be noted that the above assembly error is not limited to the manufacturing stage, and may occur even when a serviceman repairs a product once shipped, for example.

  The present invention has been made in view of the above circumstances, and the purpose of the present invention is that when an assembly error occurs in the manufacturing stage or the like for the first substrate and the second substrate disposed in the heating cooker. An object of the present invention is to provide a cooking device that can recognize not only the occurrence of an error but also the wrong substrate type.

  In order to achieve the above object, the present invention provides a cooking device provided with a first substrate and a second substrate, each of the information on a plurality of substrates including the first substrate and the second substrate, And the storage means which memorize | stored beforehand the combination information of a set of board | substrate corresponding to the model of the said heating cooker, and each information of the said 1st board | substrate and the said 2nd board | substrate are detected, These detection information is Display for displaying information on each of the first substrate and the second substrate when the combination abnormality is determined by the correctness / incorrectness determination means for determining whether or not the combination information is different from the combination information. Means.

  According to the heating cooker of the present invention, even if there is a mistake in assembling the substrate at the time of manufacturing, repairing after shipment, etc., even if there is a mistake in assembling the substrate, an operator or a service person can Each information can be clearly informed, and each board can be identified quickly. In addition, unlike the case of determining the assembly error of the other substrate on one substrate side, the present invention detects information on both substrates, so that any assembly error of any substrate can be detected accurately, and the assembly can be performed. It is possible to reliably prevent the cooking device from operating unexpectedly or shipping the product while making a mistake.

<First embodiment>
Hereinafter, a first embodiment in which the present invention is applied to an induction cooking device will be described with reference to FIGS. FIG. 1 is an external perspective view of the state where the induction heating cooker 1 is incorporated in the top plate 2 of the system kitchen (so-called built-in type), and FIG. 2 is a longitudinal side view thereof.

  The induction heating cooker 1 has a substantially rectangular box-shaped cooker body 3 (see FIG. 2) having a built-in heating means, air cooling means, etc., which will be described later, and an open top surface, and a top plate 4 mounted on the top surface. Configured. The induction heating cooker 1 has an opening peripheral portion of the top plate 2 on the back side of the top plate 4 by dropping the cooker body 3 portion into an opening (not shown) formed on the top plate 2 of the kitchen. It is supported by.

  As shown in FIG. 1, an operation panel 5 is provided on the right side of the front surface of the cooker body 3, and a dial for operating a condition setting for cooking is provided on the operation panel 5. A kangaroo type operation unit 5b provided with a liquid crystal display unit 5a is disposed. Also, on the left side of the cooker body 3, a roaster means 6 having a sheathed heater (not shown) is provided, and a door 6a that can be taken in and out is provided on the front surface thereof. (Not shown) are linked.

  On the other hand, the top plate 4 constituting the upper surface of the induction heating cooker 1 is made of, for example, transparent heat-resistant tempered glass and is formed in a flat rectangular plate shape. On the upper surface, for example, heating parts 8, 9, and 10 are printed and displayed at three places indicated by a circular frame line, for example, indicating a placement part suitable for heating a cooking utensil such as a pan 7. Among them, the heating parts 8 and 9 at two places on the left and right of the front side can heat the pan 7 as a cooking utensil by an induction heating coil 12 (see FIG. 2) provided in the cooker body 3. Moreover, the heating part 10 located in the back center can heat a to-be-heated cooking appliance via the top plate 4, for example with a radiant heater (not shown), and forms what is called a three-necked stove. The sheath heater, induction heating coil 12, and radiant heater of the roaster means 6 correspond to the heating means. The induction heating cooker 1 may include heating means other than those exemplified above.

  In the top plate 4, output display units 8 a and 9 a for displaying the output state of the induction heating coil 12 are provided on the front side of the heating units 8 and 9, respectively. Each of these output display portions 8a and 9a includes a plurality of light emitting diodes 11 group (see FIG. 3). On the upper surface of the top plate 4, the output of the induction heating coil 12 is output to a portion corresponding to the light emitting diodes 11 group. A number indicating the size is printed. An operation display board 13 (see FIGS. 2 and 3) on which the group of light emitting diodes 11 is mounted is provided in the cooker body 3 and is located below the top plate 4.

  In addition, a pair of number display portions 14a and 14b for displaying the heating time and the like are provided at a substantially central portion of the front portion of the top plate 4. Each of these numeric display portions 14a and 14b is a light emitting device comprising a transparent portion (not shown) provided on the top plate 4 and a liquid crystal display disposed on the back surface portion of the transparent portion and mounted on the operation display substrate 13. It is comprised from the display part 15 (refer FIG. 3, FIG. 6). The light-emitting display unit 15 serving as the display means may be changed as appropriate, such as a seven-segment light-emitting diode (numeric display) for displaying numbers, a plurality of light-emitting diode groups, and a fluorescent display tube. An operation unit 16 including a touch input unit for turning on / off the power, a touch input unit for setting cooking conditions, and the like is provided on the front edge of the top surface of the top plate 4.

  As schematically shown in FIG. 2, in addition to the operation display board 13 as the first board, the heating control board 17 and the error detection board 18 as the second board are disposed in the cooker body 3. Has been. An operation display microcomputer 20 shown in FIG. 3 (hereinafter, the microcomputer is abbreviated as a microcomputer) is mounted on the operation display board 13, and a heating control microcomputer 21 is installed on the heating control board 17. Are equipped with correctness / incorrectness detection microcomputers 22 respectively.

  The operation display microcomputer 20 and the heating control microcomputer 21 are electrically connected by a communication line 19a. The operation display microcomputer 20 and the correctness / incorrectness detection microcomputer 22 are electrically connected by a communication line 19b, and the heating control microcomputer 21 and the correctness / incorrectness detection microcomputer 22 are electrically connected by a communication line 19c. The communication lines 19a, 19b are connected between the operation display microcomputer 20, the heating control microcomputer 21, and the error detection microcomputer 22 by a serial interface such as UART (Universal Asynchronous Receiver / Transmitter) or SIO (Serial Input / Output). , 19c to communicate with each other. In addition, in the cooker main body 3, a blower fan device 23 is provided as an air cooling means for cooling the electrical components including the substrates 13, 17, 18 and the induction heating coil 12, and the heating units 8, 10. A thermistor 24 serving as a temperature detection unit is disposed on the lower surface of the top plate 4 that is directly below the center.

  Next, the electrical configuration of the induction heating cooker 1 of this embodiment will be described with reference to FIG. In this embodiment, two induction heating coils 12 are provided, but FIG. 3 shows an electrical configuration of one induction heating coil 12, and illustration of the blower fan device 23 and the like is also omitted.

  The operation display microcomputer (operation display unit control circuit) 20 receives an operation signal from the operation unit 16 and a voltage from a resistance element circuit 25 described later. Further, the operation display microcomputer 20 controls the display of the light emitting display unit 15 and the liquid crystal display unit 5a and the turning on / off of the light emitting diode 11 group.

  The AD port P1 to P3 of the operation display microcomputer 20 is supplied with a high level or a low level from the resistance element circuit 25, thereby giving model information of a board to be described later. The resistive element circuit 25 is composed of resistive elements 25a to 25c (each 22 kΩ) as pull-up resistors, for example, so that a high level is input to any of the AD ports P1 to P3. 4-bit information (1, 1, 1) is added as model information corresponding to (4). The plurality of resistance elements 25 a to 25 c are all mounted on the operation display substrate 13.

  The operation display microcomputer 20 incorporates the serial interface (I / F) 26 described above, and performs serial communication between the heating control microcomputer 21 and the correctness / incorrectness detection microcomputer 22, and the operation state from the operation unit 16. The data related to the heating control microcomputer 21 is transmitted to the microcomputer 21 for heating control, or the model information of the substrate of the model code A is transmitted to the microcomputer 22 for error detection. On the other hand, when receiving the display control data transmitted from the heating control microcomputer 21, the operation display microcomputer 20 performs display control of the light emitting display unit 15, the light emitting diode 11 group, and the like according to the data. ing.

  An inverter 27 is connected to the heating control microcomputer (heating control circuit) 21, and a detection signal from the thermistor 24 and a voltage from a resistance element circuit 28 described later are input. When the heating control microcomputer 21 receives the operation data and the like transmitted from the operation display microcomputer 20 via the serial interface 29, the heating control microcomputer 21 controls the inverter 27 according to the operation data and the like. A high frequency current is supplied to the coil 12 to control heating. The heating control microcomputer 21 controls the heating temperature to a predetermined value with reference to the detection signal of the thermistor 24 at the time of control, and the initial value of the detection signal of the thermistor 24 is appropriate before the cooking is started. Disconnection or short circuit is detected by judging whether it is within the proper range.

  The resistive element circuit 28 includes, for example, resistive elements 28a as pull-up resistors so that a high level is input to the AD ports P1 ′ and P2 ′ of the heating control microcomputer 21 and a low level is input to the AD port P3 ′. 28b (each 22 kΩ) and a resistance element 28c (22 kΩ) as a pull-down resistor. As a result, the resistance element circuit 28 gives, for example, 3-bit bit information (1, 1, 0) as the model information of the board corresponding to the model code B in FIG. The plurality of resistance elements 28a to 28c are all mounted on the heating control board 17, and the heating control microcomputer 21 transmits the model information and the like of the board of the model code B to the correct / error detection microcomputer 22 side.

  Although detailed illustration and description are omitted, the product specifications such as the maximum output of the induction heating cooker differ depending on the models S to V (see FIG. 4). For this reason, the substrate used in the induction heating cooker is determined for each type of substrate (corresponding to the operation display substrate and the heating control substrate) according to the models S to V of the induction heating cooker. Model information (corresponding to substrate information of the present invention) is given to identify the type of substrate. Specifically, as shown in FIG. 4, model codes A to H are assigned for each type of board, and the above-described boards 13 and 17 of the model codes A and B are used in the induction heating cooker of this embodiment. It corresponds to one model S. In addition, a resistance element circuit (not shown) that gives model information of the board is mounted on each of the boards of the model codes C to H corresponding to the models T to V of the induction heating cooker. Therefore, in the boards 13 and 17 described above, the resistance element circuit 25 provides the model information of the board to the operation display microcomputer 20 (the resistance element circuit 28 to the heating control microcomputer 21). The resistance value and the number of resistance elements may be appropriately changed according to the type of the substrate.

  The correctness / incorrectness detection microcomputer (correction / incorrectness determination means) 22 receives model information of each substrate from the operation display microcomputer 20 and the heating control microcomputer 21 via the serial interface 30. This correct / incorrect detection microcomputer 22 is provided with, for example, an EEPROM 31 as a non-volatile storage means, and the EEPROM 31 stores all the model information of the plurality of substrates as shown in FIG. Further, in the EEPROM 31, as a combination information of a set of substrates corresponding to the model of the induction heating cooker, in this embodiment, the combination of the substrate of the model code A and the model code B corresponding to the model S of the induction heating cooker 1 is used. Is stored. Then, as will be described in detail in the following description of the operation, the correctness / incorrectness detection microcomputer 22 is based on the combination information, and the operation display board 13 and the heating control board 17 assembled in the cooker body 3 are subjected to induction heating cooking. It is configured to determine whether or not the board is a regular board corresponding to the model S of the device 1.

  The operation display microcomputer 20, the heating control microcomputer 21, and the correctness / incorrectness detection microcomputer 22 perform detection of the operation state of the operation unit 16, detection of disconnection of the thermistor 24, and information detection of the substrates 13 and 17, respectively. All correspond to detection means for detecting information related to the state of the induction heating cooker 1.

  Next, the operation of this embodiment will be described with reference to FIG. FIG. 5 is a flowchart showing the contents of control for the part according to the gist of the present invention. When the power is turned on, the correctness / incorrectness detection microcomputer 22 first detects the model information of the operation display board 13 and the model information of the heating control board 17 a plurality of times in step S1.

  Specifically, the operation display microcomputer 20 transmits the model information of the model code A given from the resistance element circuit 25 to the correct / error detection microcomputer 22 side a plurality of times (for example, 50 times) at a predetermined transmission timing. Similarly, the heating control microcomputer 21 transmits the model information of the model code B given from the resistance element circuit 28 to the correct / error detection microcomputer 22 side a plurality of times (for example, 50 times) at a predetermined transmission timing.

  Here, the correctness / incorrectness detection microcomputer 22 determines whether or not all the model information received from the operation display microcomputer 20 (or the model information received from the heating control microcomputer 21) matches (step S2). Except for the case of coincidence, it is determined that the board is illegal or a communication error (step S3). In this case, it may be configured to display on the display unit such as the light emitting display unit 15 that an illegal board or communication error has occurred, or a buzzer for notifying that an illegal board or communication error has occurred. May be provided in the cooker body 3.

  On the other hand, in the correctness / incorrectness detection microcomputer 22, the model information that matches all from the operation display microcomputer 20 (that is, the model information of the model code A (referred to as detection information RD <b> 1)) and the model that matches all from the heating control microcomputer 21. When information (that is, model information of model code B (referred to as detection information RD2)) is received (YES in step S2), no communication error has occurred and reception has been performed normally. Become. Therefore, it is determined whether or not the detection information RD1 and RD2 match the combination information stored in the EEPROM 31 (step S4).

  In step S4, when the detection information RD1, RD2 and the combination information match (YES), the operation display board 13 and the heating control board 17 assembled to the cooker body 3 are both the induction heating cooker 1. This is a regular board corresponding to the model S. Accordingly, after this, initialization processing such as initialization of the RAMs of the microcomputers 20, 21, 22 and detection of disconnection or short-circuiting of the thermistor 24 in the heating control microcomputer 21 are performed (step S5). And by step S6, the induction heating cooking appliance 1 will be in the operation waiting state (heatable state) which waits for the operation part 16 to be operated.

  On the other hand, if it is determined in step S4 that the combination information does not match the detection information RD1, RD2 (NO), the operation display microcomputer 20 transmits information regarding the combination abnormality to the operation display microcomputer 20 side. (Step S7). In this case, the display of the light-emitting display unit 15 (step S8) is divided into a case where an assembly error occurs in only one of the operation display substrate and the heating control substrate and a case where an assembly error occurs in both substrates. This will be described with reference to FIG.

  When the operation display board of the model code A and the heating control board of the model code D are assembled to the induction heating cooker 1 of the model S, it is different from the combination of the board of the model codes A and B which are regular boards. (NO in step S4). Therefore, the operation display microcomputer 20 is based on the data received in step S7, as shown in FIG. 6A, an error code (for example, “H53”) indicating a combination abnormality, and a model code corresponding to the detection information RD1 and RD2. “AD” is displayed alternately on the light emitting display 15 every few seconds.

  When the operation display board of model code C and the heating control board of model code B are assembled to the induction heating cooker of model U (see FIG. 4), the combination of the board of model codes E and F which are regular boards (NO in step S4). Therefore, the operation display microcomputer 20 based on the data received in step S7, as shown in FIG. 6B, an error code (for example, “H53”) indicating a combination abnormality and a model code corresponding to the detection information RD1 and RD2. “C—B” is displayed alternately on the light emitting display 15 every few seconds. Note that the display of the light emitting display unit 15 may be switched between an error code and a model code by operating the operation unit 16. In addition, as a model code, a symbol, a number, or the like may be assigned instead of one alpha bed character (A to H), and this may be displayed on the light emitting display unit 15.

According to the above-described embodiment, the following effects can be obtained.
The induction heating cooker 1 detects each information of the operation display board 13 and the heating control board 17 arranged in the cooker main body 3, and the detection information RD 1 and RD 2 are combined by the correct / error detection microcomputer 22. When it is determined that there is an abnormality, the information on the operation display board 13 and the heating control board 17 is displayed on the light emitting display unit 15. Therefore, even if there is a mistake in assembling the boards 13 and 17 at the time of manufacturing, repairing after shipment, etc., the operator or the service person can set each of the assembled boards 13 and 17 to each other. Information can be clearly informed, and the respective substrates 13 and 17 can be quickly identified.

  In addition, unlike the case where only the information on one substrate is detected (that is, when the assembly error of one substrate is judged on the other substrate side), in this embodiment, the information on both substrates 13 and 17 is detected. Assembling mistakes of any of the boards 13 and 17 can be accurately detected, and it is reliably avoided that the induction heating cooker 1 is operated unexpectedly or the product is shipped while the assembling is wrong. it can.

  Substrates (including the substrates 13 and 17) of the model codes A to H corresponding to the models S to V of the induction heating cooker 1 have different resistance element circuits for each type of the substrate. Information based on the voltage applied from the resistance element circuit is stored as information. According to this, it is possible to specify the model of the board without performing other settings with a relatively simple configuration in which the resistive element circuit is arranged on the board.

  Each of the above-described microcomputers 20, 21, and 22 is configured as a detection unit that detects information related to the state of the induction heating cooker 1, and the correctness / incorrectness detection microcomputer 22 is assembled before determining whether the combination is abnormal. In addition, the information on each of the substrates 13 and 17 is detected a plurality of times. According to this, it is possible to prevent erroneous detection due to an illegal substrate or a communication error when the information on the substrates 13 and 17 does not match with each other by the correctness / incorrectness detection microcomputer 22, and to accurately specify the type of the substrate. it can.

  In the case of a combination abnormality in which a regular substrate is not assembled, an operation different from the original product specification is executed, and there is a possibility that the substrate may be broken depending on the type (output) of the cooking device. On the other hand, in this embodiment, when it is determined that the combination abnormality is detected by the correctness / incorrectness detection microcomputer 22, the microcomputers 20, 21, and 22 serving as detection means detect information on the state of the induction heating cooker 1 after the determination. It is configured not to do. Therefore, by detecting the combination abnormality prior to the detection of these information, it is possible to prevent the malfunction / recognition of the microcomputer in the combination abnormality and to prevent the above-mentioned board failure.

  Moreover, as a display part of an induction heating cooking appliance, there are generally restrictions on the display contents and the number of display digits, such as a 3-digit 7-segment number display. Therefore, the induction heating cooker 1 of the present embodiment is configured to alternately display an error code indicating substrate combination abnormality and information on these substrates on the light emitting display unit 15 as a display unit. According to this, even if the light emission display unit 15 has a limitation in display contents like a numeric display, it is possible to grasp the details of the error. Therefore, the display means can be made relatively inexpensive by using an existing display unit.

  The correctness / incorrectness detection microcomputer 22 is mounted on an independent correctness / incorrectness detection board 18 separate from the operation display board 13 and the heating control board 17. According to this, the correctness / incorrectness detection board 18 can be made to correspond to each model S to V of the induction heating cooker only by rewriting the combination information of the memory (EEPROM31), and the components (correction / incorrectness detection microcomputer 22 and EEPROM31) Manufacturing costs can be reduced by using a common error detection substrate 18).

<Second embodiment>
FIG. 7 is a view corresponding to FIG. 3 showing the second embodiment of the present invention. The same parts as those in the first embodiment are denoted by the same reference numerals, description thereof is omitted, and different points will be described.
The operation display board 40 of the present embodiment is different from the operation display board 13 of the first embodiment in the following points. In other words, the operation display board 40 is provided with the correctness / incorrectness detection microcomputer 22 and the EEPROM 31, and the correctness / incorrectness detection board 18 is omitted. The operation display board 40 is mounted with an EEPROM 41 as a nonvolatile memory in place of the resistance element circuit 25. The EEPROM 41 stores the model information of the board corresponding to the model code A, and the operation display microcomputer 20 transmits the model information of the board to the correct / error detection microcomputer 22 side.

  On the other hand, an EEPROM 42 which is a non-volatile memory is mounted on the heating control board 17 in place of the resistance element circuit 28. The EEPROM 42 stores the model information of the substrate corresponding to the model code B, and the heating control microcomputer 21 is configured to transmit the model information of the substrate to the correctness detection microcomputer 22 side.

Also with the above configuration, the board combination abnormality can be detected by the correctness / incorrectness detection microcomputer 22 as in the first embodiment. Further, since the EEPROM on which the unique information corresponding to the type is written is mounted on the board such as the operation display board 40 and the heating control board 17, the model information of the board is set after the board is manufactured. In this case, since it is sufficient to change the software without changing the hardware (port assignment, etc.), it becomes possible to flexibly cope with the addition of a future model.
In addition, since the correctness / incorrectness detection microcomputer 22 is provided on the operation display board 13 having the display means, the board for the correctness / incorrectness detection microcomputer 22 can be omitted and the number of parts can be reduced. can do.

  The present invention can be applied not only to the induction heating cooker provided with the induction heating coil 12 but also to all cooking cookers provided with electric heating means. Of the operation display board and the heating control board assembled in the cooker body 3, the resistance element circuit may be provided only on one of the boards. That is, in this case, by providing a model information providing unit that provides model information of the board, such as a memory, on the other board, the combination error can be detected by the correct / incorrect detection microcomputer 22.

  Further, in the operation display microcomputer 20 and the heating control microcomputer 21, a resistance element (for example, a voltage dividing resistor) that gives model information of the board may be attached to one analog signal input port. Here, for example, when A / D conversion of the divided potential in the voltage dividing resistor is performed by 8 bits (0 to 255), the A / D conversion value set according to the model information is stored in the EEPROM 31. By doing so, the type of the substrate is identified. According to this, a lot of model information can be set by one analog signal input port.

  In addition, the present invention may be modified as appropriate, such as providing display means on the lateral side of the front edge of the top plate 4 or using the liquid crystal display 5a on the front surface of the cooker body 3 as display means. Can be implemented.

The 1st Example of this invention is shown, and the external appearance perspective view of the kitchen incorporation state of the induction heating cooking appliance Longitudinal side view showing schematic configuration of induction heating cooker Block diagram showing electrical configuration of induction heating cooker Diagram showing board model information The flowchart which shows the control content about the part which concerns on the summary of this invention (A) And (b) is a figure which shows an example of the display in a light emission display part. FIG. 3 equivalent view showing a second embodiment of the present invention.

Explanation of symbols

  In the drawings, 1 is an induction heating cooker (heating cooker), 13 is an operation display board (first board), 15 is a light emitting display (display means), 17 is a heating control board (second board), 20 Is a microcomputer for operation display (detection means), 21 is a microcomputer for heating control (detection means), 22 is a microcomputer for correctness detection (correction determination means, detection means), 25 and 28 are resistance element circuits, and 31 is an EEPROM (storage means) , 41 and 42 indicate EEPROMs (memory).

Claims (6)

A cooking device provided with a first substrate and a second substrate,
Storage means for storing in advance information on each of a plurality of substrates including the first substrate and the second substrate, and combination information on a set of substrates corresponding to the model of the heating cooker;
Correct / incorrect determination means for detecting information on each of the first substrate and the second substrate and determining whether the detected information is a combination abnormality different from the combination information;
A cooking device, comprising: display means for displaying information on each of the first substrate and the second substrate when the right / wrong judgment means judges that the combination is abnormal. Each of the plurality of substrates has a different resistance element or resistance element circuit for each type of the substrate,
The cooking device according to claim 1, wherein the storage means stores information based on the resistance element or resistance element circuit as information on the substrate.   The cooking device according to claim 1, wherein each of the plurality of substrates includes a memory in which unique information corresponding to the type of the substrate is written. Having detection means for detecting information on the state of the cooking device;
The detection means is configured to detect each information of the first substrate and the second substrate a plurality of times before the correctness determination means determines whether or not the combination is abnormal. The cooking device according to any one of claims 1 to 3.   The said detection means is comprised so that the detection of the information regarding the state of the said cooking-by-heating machine may not be performed after the said determination, when the said combination error is judged by the said right / wrong judgment means. The cooking device described. When it is determined that the combination is abnormal by the correctness determination means,
The error code indicating the combination abnormality and the information on each of the first substrate and the second substrate are alternately displayed on the display means. Cooking cooker.

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