Control board, refrigerator, manufacturing method for refrigerator

Abstract

To provide a control board which can be easily managed and prevent installation errors in appliances.SOLUTION: A control board 1 mounted on appliances comprises: connectors 14, 16, 18, 20, each of which is connectable to operating units of a plurality of types of appliances; a memory 12 in which an inspection program P1 for the control board is stored, and into which an operation program P2 corresponding to a type of appliances can be written after the control board is mounted on the appliances; and a processor 11. The processor is configured to execute the inspection program to output an inspection operation signal via the connectors, and execute the operation program that is written into the memory after the control board is mounted on the appliances to perform operation control of the operating units connected to the connectors.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present disclosure relates to a control board, a refrigerator, and a method for manufacturing a refrigerator.

Background Art

[0002] For each model, there are devices with different components and operations depending on the size and specifications. For example, when the device is a refrigerator, the capacity and specifications may vary depending on the model. Therefore, the control board mounted on the device may have different electronic components and operation programs depending on the model.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

[0004] When the mounted electronic components and operation programs vary depending on the model, the types of control boards increase. Therefore, the management of the control boards becomes complicated. For example, a storage location may be required to store the control boards separately for each corresponding model. Also, for example, the management of the number of control boards may be required to be distinguished for each corresponding model. Further, when the types of control boards are different for each model of the device, the problem of incorrect installation of the control board on the device arises. One of the objectives of the present disclosure is to provide a control board that is easy to manage and can prevent incorrect installation on the device, a refrigerator equipped with the control board, and a method for manufacturing a refrigerator.

[0005] According to an embodiment, a control board is a control board mounted on a device, and includes a connector that can be respectively connected to operation parts of devices of a plurality of models, a memory that stores an inspection program for the control board and can write an operation program corresponding to the model of the device after the control board is mounted on the device, and a processor. The processor is configured to output an inspection operation signal via the connector by executing the inspection program, and perform operation control of the operation part connected to the connector by executing the operation program written in the memory after the control board is mounted on the device.

[0006] Further details will be described as embodiments below.

Brief Description of the Drawings

[0007]

Figure 1

Figure 2

Figure 3

Figure 4

Embodiments for Carrying Out the Invention

[0008] <1. Overview of the Control Board, Refrigerator, and Refrigerator Manufacturing Method> (1) The control board according to the embodiment is a control board mounted on a device, and includes a connector that can be respectively connected to operation units of devices of a plurality of models, a memory that stores a test program for the control board and can write an operation program corresponding to the model of the device after the control board is mounted on the device, and a processor. The processor is configured to output a test operation signal via the connector by executing the test program, and perform operation control of the operation unit connected to the connector by executing the operation program written in the memory after the control board is mounted on the device.

[0009] By providing the control board according to the embodiment with a connector that can be respectively connected to operation units of devices of a plurality of models and configuring it to write an operation program corresponding to the model of the device after the control board is mounted on the device, a common control board for devices of a plurality of models can be used. As a result, it is not necessary to manage the control board for each model, which facilitates the management of the control board. In addition, by using a common control board for devices of a plurality of models, attachment errors to the devices can be prevented.

[0010] (2) The control board according to (1), preferably, further includes a writing connector to which a program writing device can be connected in a state where the control board is mounted on the device, and a writing connector to which a device for writing an operation program can be connected. Thereby, after the control board is mounted on the device, the writing device can be connected to write the operation program.

[0011] (3) The control board according to (1) or (2), preferably, the processor is configured to receive an input of an external signal and output an operation signal according to the test program when the external signal is a predefined instruction signal. Thereby, when the instruction signal is not input, the operation signal according to the test program is not output by the processor. Therefore, it is possible to appropriately confirm whether the operation program is written correctly depending on whether the device operates.

[0012] (4) The control board described in (3), preferably further comprising an input unit for an instruction signal. Thereby, it is possible to instruct the execution of the inspection.

[0013] (5) The control board described in (3), preferably, when there is no input of an instruction signal within a specified time after power is supplied and an operation program is stored in the memory, the processor is configured to perform operation control specified within a specified time after power is supplied by the operation program. Thereby, it is possible to appropriately confirm whether the operation program has been written correctly depending on whether the device operates within the specified time.

[0014] (6) The control board described in (5), preferably, when there is no input of an instruction signal within a specified time after power is supplied and no operation program is stored in the memory, the processor is configured to output an error. Thereby, it is possible to prevent omission of inspection before incorporating the control board into the device.

[0015] (7) The control board described in (1) to (6), preferably, the processor is configured to perform operation control specified when power is supplied by the operation program. Thereby, it is possible to appropriately confirm whether the operation program has been written correctly depending on whether the device operates when power is supplied.

[0016] (8) The control board described in (1) to (7), preferably, the device is a refrigerator. Thereby, it is possible to eliminate the need for model - specific management of the control boards mounted on refrigerators. As a result, the management of the control boards mounted on refrigerators becomes easy. Also, by using a common control board for multiple models of devices, it is possible to prevent incorrect installation on refrigerators.

[0017] (9) The refrigerator according to the embodiment includes the control board described in (1) to (8). This makes it possible to facilitate the management of the control board used in the manufacture of the refrigerator. Also, it is possible to prevent incorrect attachment of the control board and manufacture efficiently.

[0018] (10) The method for manufacturing a refrigerator according to the embodiment is a method for manufacturing a refrigerator on which a control board is mounted. The refrigerator has an operating part. The control board has connectors that can be respectively connected to the operating parts of refrigerators of multiple models. The method for manufacturing a refrigerator includes performing an inspection of the control board using an inspection program stored in the memory of the control board, incorporating the inspected control board into the refrigerator, connecting the operating part to the connector of the control board, and writing an operating program corresponding to the model of the refrigerator into the memory of the control board. This makes it possible to manufacture a refrigerator using a control board that is easy to manage. Also, it is possible to prevent incorrect attachment of the control board in the manufacture of the refrigerator.

[0019] <2. Examples of Control Board, Refrigerator, and Refrigerator Manufacturing Method>

[0020] FIG. 1 is a block diagram showing a functional schematic configuration of a refrigerator 100 according to the present embodiment. The refrigerator 100 includes a control board 1. The refrigerator 100 includes a compressor 2 which is an operating part, a heater 3 for defrosting, and a fan 4. The refrigerator 100 may further include an in - chamber light 5 and an in - chamber air purifier 9 as an example of the operating part. The refrigerator 100 further includes, as an example, a door switch 7 for sensing the opening and closing of a door (not shown). The refrigerator 100 further includes, as an example, a temperature sensor 6 which is a sensor for sensing the in - chamber temperature. Note that the components shown in FIG. 1 are examples, and not all of them are essential. Also, any other optional components may be provided.

[0021] Figure 2 is a schematic configuration diagram of the control board 1 according to the present embodiment. The control board 1 has a plurality of connectors to which the operating parts of the refrigerator 100 can be connected. The plurality of connectors include a compressor connector 14 for connecting the compressor 2, a heater connector 16 for connecting the heater 3, and a fan connector 18 for connecting the fan 4. The plurality of connectors further include an in-compartment cleaner connector 20 for connecting the in-compartment cleaner 9 and an in-compartment light connector 22 for connecting the in-compartment light 5. The plurality of connectors further include a temperature sensor connector 23 for connecting the temperature sensor 6 and a door switch connector 24 for connecting the door switch 7.

[0022] The control board 1 includes a controller 10. The controller 10 has a processor 11 and a memory 12. The processor 11 is, for example, a CPU (Central Processing Unit). The memory 12 includes, for example, a ROM (Read Only Memory), a RAM (Random Access Memory), and the like.

[0023] The memory 12 has a first storage unit 121 which is a storage area for storing the inspection program P1 of the control board 1 and a second storage unit 122 which is a storage area for storing the operation program P2. By the processor 11 executing the inspection program P1 or the operation program P2, the controller 10 outputs an operation signal for operating and controlling each operating part via the connector. The operation signal is, as an example, a drive voltage supplied for operating each operating part. The operation signal may include a control signal to the operating part in addition to the drive voltage.

[0024] The controller 10 controls the supply or stop of the drive voltage to each operating unit by turning on or off the switching element (transistor or relay) according to the inspection program P1 or the operation program P2. Specifically, the controller 10 controls the supply or stop of the drive voltage from the compressor connector 14 to the compressor 2 by turning on or off the compressor relay 13. Further, the controller 10 controls the supply or stop of the drive voltage from the heater connector 16 to the heater 3 by turning on or off the heater relay 15. Also, the controller 10 controls the supply or stop of the drive voltage from the fan connector 18 to the fan 4 by turning on or off the transistor 17. Further, the controller 10 controls the supply or stop of the drive voltage from the in - store air cleaner connector 20 to the in - store air cleaner 9 by turning on or off the transistor 19. Also, the controller 10 controls the supply or stop of the drive voltage from the in - store light connector 22 to the in - store light 5 by turning on or off the transistor 21.

[0025] The controller 10 is connected to the temperature sensor 6 via the temperature sensor connector 23 and receives the input of the sensor signal SG1 indicating the sensing result of the in - store temperature. Also, the controller 10 is connected to the door switch 7 via the door switch connector 24 and receives the input of the sensor signal SG2 indicating the sensing result of the opening and closing of the door. The processor 11 may use these sensor signals SG1, SG2 when executing the inspection program P1 or the operation program P2.

[0026] The control board 1 has a power connector 26 for connecting an external power source. Electric power is supplied to the control board 1 from a commercial AC power source (not shown) connected to the power connector 26. The commercial AC voltage is supplied as a drive voltage to the compressor 2 when the compressor relay 13 is turned on. Also, the commercial AC voltage is supplied as a drive voltage to the heater 3 when the heater relay 15 is turned on.

[0027] The commercial alternating voltage is supplied to the AC / DC conversion circuit 28 via the filter circuit 27 and converted into a first DC voltage. The first DC voltage is supplied to the DC / DC conversion circuit 29 and converted into a second DC voltage. The first DC voltage is, for example, 12V, and the second DC voltage is, for example, 5V. The first DC voltage is supplied to the compressor relay 13 and the heater relay 15. Also, when the transistor 17 is turned on, the first DC voltage is supplied as a driving voltage to the fan 4. Also, when the transistor 19 is turned on, the first DC voltage is supplied as a driving voltage to the in-warehouse air cleaner 9. Also, when the transistor 21 is turned on, the first DC voltage is supplied as a driving voltage to the in-warehouse lamp 5. The second DC voltage is supplied to the controller 10. Also, the second DC voltage is supplied to the temperature sensor 6 connected to the temperature sensor connector 23. Also, the second DC voltage is supplied to the door switch 7 connected to the door switch connector 24.

[0028] The memory 12 stores the test program P1 before the control board 1 is incorporated into the refrigerator 100. The operation program P2 is not stored in the memory 12 before the control board 1 is incorporated into the refrigerator 100. The operation program P2 is written into the memory 12 after the control board 1 is mounted on the refrigerator 100. The second storage unit 122 of the memory 12 is a storage area in which the operation program P2 corresponding to the model of the refrigerator 100 can be written after the control board 1 is mounted on the refrigerator 100.

[0029] By executing the test program P1, the processor 11 drives the necessary operation parts via the connectors and performs a predetermined operation for testing. For example, the test program P1 includes instructions to turn on or off the compressor 2 via the compressor connector 14, turn on or off the heater 3 via the heater connector 16, and so on. By connecting a tester (not shown) to each connector and checking the presence or absence of an operation signal (driving voltage), etc., the control board 1 can be tested.

[0030] In the memory 12 of the control board 1 mounted on the refrigerator 100, an operation program P2 corresponding to the model of the refrigerator 100 is written. The refrigerator 100 has different operation parts and operations depending on the size and specifications for each model. Therefore, the operation parts to be controlled and the temperature settings etc. differ depending on the model. For this reason, the operation program P2 is prepared for each model of the refrigerator 100. The processor 11 performs the operation control of each operation part connected to the connector by executing the operation program P2 written in the memory 12 after the control board 1 is mounted on the refrigerator 100.

[0031] The control board 1 has a second program writing connector 25 for connecting the writing device 200 (see FIG. 3) of the operation program P2. The second program writing connector 25 is arranged on the control board 1 at a position where the writing device 200 can be connected in a state where the control board 1 is mounted on the refrigerator 100. The fact that it is arranged at a position where the writing device 200 can be connected in a state where the control board 1 is mounted on the refrigerator 100 means that it is attached in a state where it can be easily accessed from the outside in a state where the control board 1 is mounted on the refrigerator 100. As an example, the second program writing connector 25 is arranged on the surface facing the outside when the control board 1 is attached to the refrigerator 100.

[0032] The connector arranged on the control board 1 is not limited to that shown in FIG. 2. For example, the control board 1 may further have a connector for connecting a damper. The damper is provided between the refrigerating compartments of a blower duct (not shown) that blows cold air from the compressor 2. The controller 10 controls the supply or stop of the driving voltage from the connector to the damper by turning on or off a switching element (transistor or relay) according to the inspection program P1 or the operation program P2.

[0033] The plurality of connectors arranged on the control board 1 includes connectors that can be connected to the operating parts with the same function of refrigerators 100 of different models. As an example, the control board 1 may be provided with a plurality of connectors that correspond to the operating parts with the same function but correspond to different models. In this case, the relays and transistors may be common to the plurality of connectors corresponding to different models. Or, a plurality of relays and transistors may be provided corresponding to the plurality of connectors corresponding to different models.

[0034] As another example, the control board 1 may be provided with a common connector for the operating parts with the same function of multiple models. For example, the shape of the compressor connector 14 may be such that it can be connected to both the refrigerator 100A of the first model and the refrigerator 100B of the second model.

[0035] As another example, the control board 1 may be provided with connectors for the operating parts that exist only in some models. For example, even if the second model refrigerator 100B does not have the in - cabinet air purifier 9, the control board 1 may be provided with the in - cabinet air purifier connector 20.

[0036] The control board 1 has an inspection switch 30. The inspection switch 30 is a switch for instructing the processor 11 to output an operating signal for inspection. The inspection switch 30 is, as an example, a physical switch. In that case, the inspection switch 30 inputs an instruction signal to the processor 11 by receiving a user operation such as pressing by the user. The inspection switch 30 is, as another example, a module that communicates with another device. In that case, the inspection switch 30 receives the input of the instruction signal from the other device and inputs it to the processor 11.

[0037] Preferably, the inspection switch 30 is operable before the control board 1 is mounted on the refrigerator 100 and is disposed at a position where it is inoperable after the control board 1 is mounted on the refrigerator 100. As an example, the inspection switch 30 is disposed on a surface that cannot be accessed from the outside and is only in contact with the inside when the control board 1 is attached to the refrigerator 100. As another example, the inspection switch 30 refers to a configuration in which an instruction signal is input via a connector connected in an inspection process. For example, a tester connected in an inspection process may output an operation signal for inspection.

[0038] FIG. 3 is a schematic diagram of an example of a manufacturing method of the refrigerator 100 according to the present embodiment. In the example of FIG. 3, the inspection switch 30 is disposed on the back surface of the control board 1. The back surface of the control board 1 is a surface that cannot be accessed after the control board 1 is mounted on the refrigerator 100. Therefore, the control board 1 is inspected before being mounted on the refrigerator 100 (Step #1: Inspection Step).

[0039] In the inspection step, the control board 1 for which it has been confirmed that an operation signal (drive voltage) defined by the inspection program P1 is output is incorporated into the refrigerator 100. The control board 1 is a control board common to a plurality of models of refrigerators 100A, 100B, and 100C. In the example of FIG. 3, the control board 1 has a connector CA for the first model of refrigerator 100A, a connector CB for the second model of refrigerator 100B, and a connector CC for the third model of refrigerator 100C. Therefore, the control board 1 is also incorporated into the first model of refrigerator 100A (Step #2A: Incorporation Step), the second model of refrigerator 100B (Step #2B: Incorporation Step), and the third model of refrigerator 100C (Step #2C: Incorporation Step). The incorporation steps #2A, #2B, and #2C include connecting the operation parts of the refrigerator 100 to the respective connectors of the incorporated control board 1.

[0040] In the example of FIG. 3, connectors CA, CB, CC, and the second program writing connector 25 are arranged on the surface of the control board 1, and the inspection switch 30 is arranged on the back surface. In steps #2A, #2B, and #2C, in each case, after mounting the control board 1 on the refrigerators 100A, 100B, and 100C, the control board 1 is incorporated into the refrigerators 100A, 100B, and 100C so that the surface faces in an accessible direction and the back surface faces in an inaccessible direction.

[0041] An operation program P2 corresponding to the model is installed on the control board 1 mounted on each model of the refrigerators 100A, 100B, and 100C. That is, on the control board 1 mounted on the first model of the refrigerator 100A, a writing device 200 is connected to the second program writing connector 25, and the operation program P2A for the first model is installed (step #3A: writing step). Also, on the control board 1 mounted on the second model of the refrigerator 100B, a writing device 200 is connected to the second program writing connector 25, and the operation program P2B for the second model is installed (step #3B: writing step). Also, on the control board 1 mounted on the third model of the refrigerator 100C, a writing device 200 is connected to the second program writing connector 25, and the operation program P2C for the third model is installed (step #3C: writing step).

[0042] Since the control board 1 according to the present embodiment is a control board common to multiple models of the refrigerators 100A, 100B, and 100C, it is not necessary to consider the model of the refrigerator 100 in the management of the control board 1. As a result, it becomes unnecessary to store the control board 1 for each model, for example, or to manage the quantity for each model. Therefore, the control board 1 according to the present embodiment is easy to manage. Also, when incorporating the control board 1 into the refrigerator 100, it is not necessary to distinguish the model of the refrigerator 100. Therefore, the control board 1 according to the present embodiment can prevent incorrect installation into the refrigerator.

[0043] On the control board 1 according to this embodiment, electronic components common to a plurality of models of refrigerators 100A, 100B, and 100C are mounted. Therefore, the inspection program P1 can also be made common to a plurality of models of refrigerators 100A, 100B, and 100C. As a result, the inspection program P1 can be stored in advance in the memory 12 of the control board 1 common to a plurality of models of refrigerators 100A, 100B, and 100C. Therefore, the control board 1 can be inspected before being mounted on the refrigerator 100. In the above example, different connectors (CA, CB, CC) for each model of the refrigerator are mounted on the control board 1, but the control board 1 may be mounted with the same connector corresponding to a plurality of models.

[0044] Figure 4 is a flowchart showing an example of the operation flow on the control board 1 according to this embodiment. When power is connected to the power connector 26 and power is supplied to the control board 1 (YES in step S101), the processor 11 automatically executes the inspection program P1. When an instruction signal is received from the inspection switch 30 within a specified time from the power supply (YES in step S103), the processor 11 outputs a specified operation signal (drive voltage) according to the inspection program P1 (step S105). Thereby, the control board 1 is inspected.

[0045] If no instruction to execute the inspection is given by the inspection switch 30 within a specified time from the power supply and an appropriate operation program P2 is not stored in the memory 12 (NO in step S103 and NO in step S107), the processor 11 outputs an error (step S109) and ends the operation according to the inspection program P1. The error output in step S109 includes causing the buzzer, light, etc. provided on the control board 1 to perform a pre-specified output when they are provided. The error output in step S109 may be, as another example, the output of a pre-specified operation signal.

[0046] The appropriate operation program P2 includes the case where the operation program P2 itself is not stored and the case where an operation program P2 that does not correspond to the model is stored. Whether it is the appropriate operation program P2 can be determined by, for example, whether the connectors (CA, CB, CC) for each model are normally connected by input and output of signals from the processor 11.

[0047] When no instruction to execute the inspection by the inspection switch 30 is given within a specified time from the power supply and an appropriate operation program P2 is stored in the memory 12 (NO in step S103 and YES in step S107), the processor 11 executes the operation program P2 (step S111). Thereby, an operation signal is output according to the operation program P2, and the operation of the refrigerator 100 is controlled.

[0048] The execution of the operation program P2 by the processor 11 continues, as an example, until the power supply to the control board 1 stops (NO in step S113). When the power supply to the control board 1 stops (YES in step S113), the processor 11 ends the operation according to the operation program P2. Thereby, until the connection with the power supply is disconnected from the refrigerator 100, the operation of the refrigerator 100 is controlled by the controller 10. As another example, a user operation instructing the end of the operation may be performed on an operation unit (not shown). In this case, by receiving the input of the instruction signal from the operation unit, the processor 11 ends the operation according to the operation program P2.

[0049] In the control board 1 according to the present embodiment, an error is output if no instruction to execute the inspection is given within a specified time after the power is connected to the control board 1. In the control board 1 according to the present embodiment, preferably, the inspection switch 30 is arranged at a position where it cannot be accessed after the control board 1 is incorporated into the refrigerator 100. Therefore, the inspection switch 30 is operated before the control board 1 is incorporated into the refrigerator 100. Thereby, forgetting to inspect before incorporating the control board 1 into the refrigerator 100 is prevented.

[0050] In the control board 1 according to the present embodiment, the operation according to the inspection program P1 is not performed unless an instruction to execute the inspection by the inspection switch 30 is given. Therefore, after a specified time from when it is connected to the power supply, the refrigerator 100 does not operate according to the inspection program P1. On the other hand, in the control board 1 according to the present embodiment, after a specified time from when power is supplied to the control board 1, an operation signal according to the operation program P2 is automatically output. Therefore, in the refrigerator 100 according to the present embodiment, after a specified time from when it is connected to the power supply, for example, the compressor 2 operates or the fan 4 operates.

[0051] As a result, when the refrigerator 100 operates after a specified time from when the power supply of the refrigerator 100 is connected, it is confirmed that the operation program P2 has been installed on the control board 1 and that the operation program P2 suitable for the model has been installed. Also, when the refrigerator 100 does not operate after a specified time from when the power supply of the refrigerator 100 is connected, it is confirmed that the operation program P2 has been forgotten to be installed or that an operation program P2 for a different model has been installed. That is, by using the control board 1 according to the present embodiment, it is possible to appropriately check whether or not the operation program P2 has been installed depending on whether or not the refrigerator 100 automatically operates after a specified time from when the power supply of the refrigerator 100 is connected.

[0052] In the control board 1 according to the present embodiment, preferably, the inspection switch 30 is disposed at a position where it cannot be accessed after the control board 1 is incorporated into the refrigerator 100. As a result, after the control board 1 is incorporated into the refrigerator 100, an instruction to execute the inspection by the inspection switch 30 is not given. Therefore, after the control board 1 is incorporated into the refrigerator 100, the refrigerator 100 does not operate according to the inspection program P1. Thereby, it is possible to appropriately check whether or not the operation program P2 has been installed depending on whether or not the refrigerator 100 automatically operates after a specified time from when the power supply of the refrigerator 100 is connected.

[0053] [Modification Example 1] The first storage unit 121 and the second storage unit 122 of the memory 12 do not have to be different storage areas. In this case, the operation program P2 may overwrite the inspection program P1 stored in the memory 12. That is, after the installation of the operation program P2, the inspection program P1 does not have to be stored in the memory 12. In this case, the processor 11 skips the operations in steps S103 to S109 in FIG. 4, and outputs an operation signal according to the operation program P2 when power is supplied to the control board 1.

[0054] [Modification Example 2] The installation of the operation program P2 is not limited to the method of connecting the writing device 200 to the second program writing connector 25, and other methods may be used. For example, when the writing device 200 has a wireless communication function, the control board 1 has a receiver instead of the second program writing connector 25, and the operation program P2 wirelessly transmitted from the writing device 200 may be received by the receiver. The wireless communication may be directly performed between the writing device 200 and the receiver, may be performed via a line such as the Internet, or may be performed via another device such as a smartphone.

[0055] [Modification Example 3] In the above examples, the control board 1 according to the present embodiment is incorporated into the refrigerator 100. However, the device into which the control board 1 is incorporated may be a device other than the refrigerator 100 as long as the operation of the device is controlled by the control board 1.

[0056] <3. Supplementary Note> The present invention is not limited to the above embodiment, and various modifications are possible.

Explanation of Reference Numerals

[0057] 1: Control board, 10: Controller, 12: Memory, 14: Compressor connector, 16: Heater connector, 18: Fan connector, 20: Connector for in - storage air cleaner, 22: Connector for in - storage light, 23: Temperature sensor connector, 24: Door switch connector, 25: Connector for writing the second program, 30: Inspection switch, 100, 100A, 100B, 100C: Refrigerators, P1: Inspection program, P2, P2A, P2B, P2C: Operating programs

Claims

1. A control board mounted on a machine, a connector capable of being respectively connected to operation parts of the machines of a plurality of models, a memory storing an inspection program for the control board and capable of writing an operation program corresponding to the model of the machine after the control board is mounted on the machine, and a processor, wherein the processor outputs an inspection operation signal through the connector by executing the inspection program, and performs operation control of the operation part connected to the connector by executing the operation program written in the memory after the control board is mounted on the machine. The control board.

2. A writing connector connectable to a program writing device in a state where the control board is mounted on the machine, and further comprising a writing connector connectable to the writing device of the operation program. The control board according to claim 1.

3. The processor is configured to receive an input of an external signal and output the operation signal according to the inspection program when the external signal is a predefined instruction signal. The control board according to claim 1.

4. Further comprising an input part of the instruction signal. The control board according to claim 3.

5. When there is no input of the instruction signal within a specified time after power is supplied and the operation program is stored in the memory, the processor performs operation control defined within the specified time after power is supplied by the operation program. The control board according to claim 3.

6. The processor is configured to output an error when there is no input of the instruction signal within the specified time after power is supplied and the operation program is not stored in the memory. The control board according to claim 5.

7. The processor is configured to perform operation control defined when power is supplied by the operation program. The control board according to claim 1.

8. The device is a refrigerator. The control board according to claim 1.

9. Comprising the control board according to any one of claims 1 to 8 A refrigerator.

10. A method for manufacturing a refrigerator on which a control board is mounted, The refrigerator has an operating part, The control board has connectors that can be respectively connected to the operating parts of refrigerators of multiple models, Using the inspection program stored in the memory of the control board, inspect the control board, Incorporate the control board after the inspection into the refrigerator, Connect the operating part to the connector of the control board, Writing an operation program corresponding to the model of the refrigerator into the memory of the control board, which comprises A method for manufacturing a refrigerator.

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