Test method of heat pump air conditioner

Abstract

The invention discloses a test method of a heat pump air conditioner. A compressor simulation driving device is adopted to send fault parameters to a main control board of an outdoor unit of the heat pump air conditioner so as to carry out fault test on the main control board of the outdoor unit of the heat pump air conditioner. The compressor simulation driving device is adopted to simulate the operation of the compressor, and the compressor simulation driving device sends the operation parameters of the compressor under the fault to the heat pump air conditioner outdoor unit main control board to complete the test of the heat pump air conditioner outdoor unit main control board, so that the test time is saved, the development cost is greatly reduced, and the development period is shortened; and the risk of electric shock of testers and other potential safety hazards are completely eradicated.

Description

Technical Field

[0001] The invention relates to a testing method for a heat pump air conditioner. Background Art

[0002] When testing the operation logic function of the heat pump inverter air conditioner, it is necessary to connect the compressor drive module. According to the control of the main control program, the control command will be sent to control the compressor drive module, and then the various states and fault alarms fed back by the compressor will be combined with the logic function to determine whether the control purpose has been achieved. In the actual testing process, it is often necessary to run for a long time in order to test a fault or one of the operating states. This not only wastes the tester's time, but also consumes a lot of electricity, thereby increasing the company's development costs, and there are safety hazards in testing some faults. Summary of the invention

[0003] In view of the above problems, the present invention provides a test method for a heat pump air conditioner, which effectively solves the problems pointed out in the background technology.

[0004] The technical solution adopted by the present invention is:

[0005] A method for testing a heat pump air conditioner, using a compressor simulation driving device to test a main control board of an outdoor unit of the heat pump air conditioner, wherein the compressor simulation driving device can send the actual operating parameters of the compressor to the main control board of the outdoor unit of the heat pump air conditioner, comprising the following steps:

[0006] Step 1) summarize all the faults that need to be tested for the heat pump air conditioner and the parameters corresponding to each fault of the heat pump air conditioner outdoor unit main control board, and store them in the heat pump air conditioner outdoor unit main control board;

[0007] Step 2), from all the faults stored in the main control board of the heat pump air conditioner outdoor unit, select one fault to be tested, and the specific testing method is: send the corresponding fault parameters to the main control board of the heat pump air conditioner outdoor unit n times according to the period T, if the main control board of the heat pump air conditioner outdoor unit triggers the fault n times, then lock the fault, indicating that the main control board of the heat pump air conditioner outdoor unit passes the test of the fault, and store the test result in the compressor simulation drive device;

[0008] Step 3) Repeat step 2) until all faults stored in the main control board of the heat pump air conditioner outdoor unit have been tested.

[0009] Preferably, the compressor simulation drive device is connected to the main control board of the heat pump air conditioner outdoor unit via 485 communication.

[0010] Preferably, the compressor simulation drive device comprises an MCU main control module, a key input module, a display module and a communication module.

[0011] The present invention adopts a compressor simulation driving device to simulate the operation of the compressor. The compressor simulation driving device sends the operating parameters of the compressor under fault to the main control board of the outdoor unit of the heat pump air conditioner to complete the test of the outdoor unit main control board of the heat pump air conditioner. This not only saves testing time, greatly reduces development costs, shortens the development cycle, but also completely eliminates the risk of electric shock to testers and other safety hazards. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural diagram of the compressor simulation driving device of the present invention. DETAILED DESCRIPTION

[0013] It should be noted that the following detailed descriptions are illustrative and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present application belongs.

[0014] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0015] In addition, in the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0016] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "plurality" means two or more, unless otherwise clearly specified.

[0017] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0018] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0019] The present invention is further described in detail below through specific embodiments in conjunction with the accompanying drawings.

[0020] Example 1

[0021] A method for testing a heat pump air conditioner, using a compressor simulation driving device to test a main control board of an outdoor unit of the heat pump air conditioner, wherein the compressor simulation driving device can send real operating parameters of the compressor to the main control board of the outdoor unit of the heat pump air conditioner, and the compressor simulation driving device includes an MCU main control module, a key input module, a display module and a communication module, and the communication module is connected to the main control board of the outdoor unit of the heat pump air conditioner through 485 communication, and includes the following steps:

[0022] Step 1) summarize all the faults that need to be tested for the heat pump air conditioner and the parameters corresponding to each fault of the heat pump air conditioner outdoor unit main control board, and store them in the heat pump air conditioner outdoor unit main control board;

[0023] Step 2), from all the faults stored in the main control board of the heat pump air conditioner outdoor unit, select one fault to be tested, and the specific testing method is: send the corresponding fault parameters to the main control board of the heat pump air conditioner outdoor unit n times according to the period T, if the main control board of the heat pump air conditioner outdoor unit triggers the fault n times, then lock the fault, indicating that the main control board of the heat pump air conditioner outdoor unit passes the test of the fault, and store the test result in the compressor simulation drive device;

[0024] Step 3) Repeat step 2) until all faults stored in the main control board of the heat pump air conditioner outdoor unit have been tested.

[0025] Wherein T and n can be adjusted according to the test needs, and n can usually be taken as 6 times. Through the above steps, the present invention can perform a fault test on the main control board of the outdoor unit of the heat pump air conditioner. If all faults can be locked during the test, it means that the main control board of the outdoor unit of the heat pump air conditioner has passed the fault test.

[0026] For example, when testing the compressor operating frequency: Step 2) will send the operating frequency parameters to the heat pump air conditioner outdoor unit main control board according to the period T. The heat pump air conditioner outdoor unit main control board tests the entire operating logic according to the operating frequency, and can quickly test whether the main control operating logic meets the actual functional requirements.

[0027] For example, when testing the input voltage sampling fault, the fault parameters are sent to the main control board of the heat pump air conditioner outdoor unit through the compressor simulation drive device to complete the input voltage sampling fault test. After experimental testing, it only takes 4 seconds to complete a test. If 6 tests are performed to lock the fault, it only takes 24 seconds, which greatly improves the test efficiency.

[0028] For example, when testing the operating frequency of a 3-horsepower heat pump air-conditioning compressor, the function of the compressor is about 4 kWh. According to the logic test, the compressor operation executes the start-six and stop-three requirements: the shortest running time is 6 minutes, and it must stop for at least 3 minutes before restarting after shutdown. Continuous testing 10 times consumes 4 kWh of electricity, while the power of the compressor simulation drive device is about 2.5 watts. The entire logic function test is completed, and only 0.0025 kWh is consumed. It can be seen that testing through the compressor simulation drive device can greatly save the electricity consumed during the test.

[0029] Example 2

[0030] At the same time, when the present invention tests the heat pump air conditioner, step 2) may also include the following content: from all the faults stored in the main control board of the outdoor unit of the heat pump air conditioner, multiple faults are selected and tested simultaneously. The specific testing method is: the corresponding fault parameters are sent to the main control board of the outdoor unit of the heat pump air conditioner n times according to the period T. If all the selected faults trigger n faults on the main control board of the outdoor unit of the heat pump air conditioner, the selected faults are locked, indicating that the main control board of the outdoor unit of the heat pump air conditioner has passed the tests of these faults, and the test results are stored in the compressor simulation drive device.

[0031] When selecting multiple faults for simultaneous testing, you can proceed in the following two ways:

[0032] 1. Select related faults to test at the same time, which can optimize the test logic and improve the accuracy of the test results of the main control board of the heat pump air conditioner outdoor unit;

[0033] 2. Select completely unrelated faults to test simultaneously, which can improve test efficiency and greatly shorten the test cycle.

[0034] At the same time, when the compressor fails during air conditioning maintenance, the present invention can temporarily replace the compressor to check whether other components are normal, and has the advantage of being easy to carry.

[0035] Finally, it should be noted that the above examples are only specific embodiments of the present invention. Obviously, the present invention is not limited to the above embodiments, and there are many variations. All variations that can be directly derived or associated with the content disclosed by a person skilled in the art should be considered as the protection scope of the present invention.

Claims

1. A method for testing a heat pump air conditioner, characterized in that: The compressor simulation driving device is used to test the main control board of the heat pump air conditioner outdoor unit. The compressor simulation driving device can send the real operating parameters of the compressor to the main control board of the heat pump air conditioner outdoor unit, including the following steps: Step 1) summarize all the faults that need to be tested for the heat pump air conditioner and the parameters corresponding to each fault of the heat pump air conditioner outdoor unit main control board, and store them in the heat pump air conditioner outdoor unit main control board; Step 2), from all the faults stored in the main control board of the heat pump air conditioner outdoor unit, select one fault to be tested. The specific testing method is: send the corresponding fault parameters to the main control board of the heat pump air conditioner outdoor unit n times according to the cycle T. If the main control board of the heat pump air conditioner outdoor unit triggers the fault n times, the fault is locked; Step 3) Repeat step 2) until all faults stored in the main control board of the heat pump air conditioner outdoor unit have been tested.

2. A method for testing a heat pump air conditioner according to claim 1, characterized in that: The compressor simulation drive device is connected to the main control board of the heat pump air conditioner outdoor unit through 485 communication.

3. A method for testing a heat pump air conditioner according to claim 1, characterized in that: The compressor simulation driving device comprises an MCU main control module, a key input module, a display module and a communication module.

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