A test control method of a compressor

Abstract

The application discloses a kind of test control methods of compressor, comprising: the detection order of each detector is set in control unit by human-computer interaction interface, compressor is installed;The compressor is not welded assembly compressor;The control unit selects corresponding detector, and by the opening and closing of control selection circuit, so that compressor is connected to corresponding detector and detected;The control unit stores detection data, and compressor output.The test control method of compressor provided in the application can detect the performance of compressor before the compressor is not welded assembly, and improve the efficiency of detection and assembly.

Description

Technical Field

[0001] This invention relates to the field of compressor testing, and more particularly to a method for testing and controlling a compressor. Background Technology

[0002] In the existing technology, the compressor needs to go through welding, leak detection, electrophoretic painting, cooling and other processes in sequence. The above processes take about 6 hours. Performance testing can only be carried out after it has been completely cooled. When an abnormality is found during the test, the compressor needs to be reworked and disassembled. If a batch of compressors are abnormal, it will lead to increased rework costs and time.

[0003] The existing performance testing process requires placing the compressor in different testing stations for different performance tests in sequence; that is, the testing station needs to be changed frequently in the testing process, which leads to low testing efficiency. Summary of the Invention

[0004] This invention aims to at least partially address one of the problems in related technologies. Therefore, the object of this invention is to provide a test control method for compressors, enabling compressor performance testing before welding and assembly, thereby improving the efficiency of testing and assembly.

[0005] To achieve the above objectives, this application adopts the following technical solution: a test control method for a compressor, comprising:

[0006] The detection sequence of each detector is set in the control unit through a human-computer interaction interface, and the compressor is installed; the compressor is an un-welded and assembled compressor.

[0007] The control unit selects the corresponding detector and controls the opening and closing of the selection circuit to connect the compressor to the corresponding detector for detection.

[0008] The control unit stores the detection data, and the compressor outputs the data.

[0009] Furthermore, the control unit storing the detection data specifically includes: the control unit feeding back the detection data to the data center and displaying it on the human-computer interaction interface.

[0010] Furthermore, the detectors include a start-up operation detector, an electromagnetic sound detector, an inter-turn detector, a magnetic flux detector, and an insulation withstand voltage detector.

[0011] Furthermore, the selection circuit includes a start-up switch circuit, an electromagnetic sound switch circuit, an inter-turn test switch circuit, a magnetic flux switch circuit, and an insulation withstand voltage switch circuit.

[0012] Furthermore, the insulation withstand voltage switch circuit includes a withstand voltage switch KM9, and the common terminal, operating terminal and starting terminal of the compressor are respectively connected to the insulation withstand voltage detector through the withstand voltage switch KM9; when the compressor is connected to the insulation withstand voltage detector for detection, the withstand voltage switch KM9 is closed.

[0013] Furthermore, the inter-turn test switch circuit includes an inter-turn switch KM7, and the common terminal, operating terminal and starting terminal of the compressor are respectively connected to the inter-turn detector through the inter-turn switch KM7; when the compressor is connected to the inter-turn detector for testing, the inter-turn switch KM7 is closed.

[0014] Furthermore, the electromagnetic sound switch circuit includes an electromagnetic sound switch KM6, and the common terminal and the operating terminal of the compressor are respectively connected to the electromagnetic sound detector through the electromagnetic sound switch KM6; when the compressor is connected to the electromagnetic sound detector for detection, the electromagnetic sound switch KM6 is closed.

[0015] Furthermore, it also includes: setting the compressor type in the control unit via a human-machine interface, and when the compressor is connected to a start-up detector for detection,

[0016] If the compressor is a single-phase fixed-frequency compressor, then the common terminal and the running terminal of the single-phase fixed-frequency compressor are connected to the single-phase fixed-frequency start-up and operation detector in sequence through start switch KM4 and single-phase fixed-frequency switch KM3. The start terminal of the single-phase fixed-frequency compressor is connected to node A in sequence through start switch KM4 and single-phase fixed-frequency switch KM3. Node A is simultaneously connected to one end of the first capacitor C1, the second capacitor C2, the third capacitor C3, and the fourth capacitor C4. The other end of the first capacitor C1 is connected to the single-phase fixed-frequency start-up and operation detector through the first capacitor switch KA1; the other end of the second capacitor C2 is connected to the single-phase fixed-frequency start-up and operation detector through the second capacitor switch KA2; the other end of the third capacitor C3 is connected to the single-phase fixed-frequency start-up and operation detector through the third capacitor switch KA3; and the other end of the fourth capacitor C4 is connected to the single-phase fixed-frequency start-up and operation detector through the fourth capacitor switch KA4.

[0017] If the compressor is a three-phase fixed-frequency compressor, the common terminal, running terminal and starting terminal of the three-phase fixed-frequency compressor are connected to the three-phase fixed-frequency start-up and operation detector in sequence through the starting switch KM4 and the three-phase fixed-frequency switch KM8.

[0018] If the compressor is a variable frequency compressor, the common end, running end and starting end of the variable frequency compressor are connected to one end of the variable frequency controller in sequence through the starting switch KM4 and the first variable frequency switch KM5. The other end of the variable frequency controller is connected to the variable frequency start-up detector through the second variable frequency switch KM5'. The first variable frequency switch KM5 and the second variable frequency switch KM5' are kept open and closed at the same time. The variable frequency controller includes a variable frequency control switch KA5.

[0019] Furthermore, a current acquisition module is provided between the start switch KM4 and the single-phase fixed-frequency switch KM3, the three-phase fixed-frequency switch KM8, or the first variable-frequency switch KM5. The current acquisition module is wrapped around one of the lines connected to the compressor's common terminal, operating terminal, and start terminal.

[0020] Furthermore, the magnetic flux switching circuit includes a magnetic flux switch KM7. The common terminal and the start terminal of the variable frequency compressor are both connected to one end of the acquisition circuit board via the magnetic flux switch KM7, and the other end of the acquisition circuit board is connected to the magnetic flux detector.

[0021] Compared with the prior art, the technical solution provided in this application has the following advantages: This application tests the compressor before it is welded and assembled. The control unit is simultaneously connected to the human-machine interface and each detector. The compressor to be tested is connected to each detector via a control selection circuit. This connection refers to the connection of the compressor's external port, and does not require the compressor to be welded and assembled. The human-machine interface can set the detection order of each detector, and the control unit controls the opening and closing of the switches in the selection circuit according to the detection order, so that the compressor is connected to the corresponding detector sequentially for testing. This application can complete the performance testing of the compressor before welding and assembly, avoiding the problem of disassembly due to abnormalities after assembly, and improving the efficiency of compressor testing and assembly. Attached Figure Description

[0022] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0023] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] In the attached image:

[0025] Figure 1 This is a schematic diagram of the framework of the test control method for the compressor in this application;

[0026] Figure 2 This is a flowchart of the test control method in Example 2;

[0027] Figure 3 This is a schematic diagram of the circuit selected in Example 3; Detailed Implementation

[0028] To provide a clearer understanding of the technical features, objectives, and effects of this invention, specific embodiments are now described in detail with reference to the accompanying drawings. In the following description, it should be understood that the orientations or positional relationships indicated by terms such as "front," "rear," "upper," "lower," "left," "right," "longitudinal," "horizontal," "vertical," "horizontal," "top," "bottom," "inner," "outer," "head," and "tail" are based on the orientations or positional relationships shown in the accompanying drawings, and are constructed and operated in a specific orientation. They are only for the convenience of describing this technical solution and do not indicate that the referred mechanism or element must have a specific orientation; therefore, they should not be construed as limitations on this invention.

[0029] It should also be noted that, unless otherwise explicitly specified and limited, terms such as "installation," "connection," "linking," "fixing," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. When an component is referred to as being "on" or "below" another component, the component can be located "directly" or "indirectly" on the other component, or there may be one or more intermediary components. The terms "first," "second," "third," etc., are only for the convenience of describing this technical solution and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first," "second," "third," etc., may explicitly or implicitly include one or more of that feature. For those skilled in the art, the specific meaning of the above terms in this invention can be understood according to the specific circumstances.

[0030] In the following description, specific details such as particular system structures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of the invention. However, those skilled in the art will understand that the invention can be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, mechanisms, circuits, and methods are omitted so as not to obscure the description of the invention with unnecessary detail.

[0031] Example 1

[0032] Please see Figures 1-3 This application provides a test control method for a compressor, comprising:

[0033] S1: Set the detection sequence of each detector in the control unit through the human-machine interface, and install the compressor; the compressor is an un-welded and assembled compressor;

[0034] S2: The control unit selects the corresponding detector and connects the compressor to the corresponding detector for testing by controlling the opening and closing of the selection circuit. Note: This step must be performed according to the detection sequence set above. After the previous detection is completed, the control unit controls the selection circuit to switch and connect to the next detector. The specific order of connection to the detectors should follow the set detection sequence. The selection circuit includes switching circuits connected to each detector.

[0035] S3: The control unit stores the detection data, and the compressor outputs it.

[0036] This application tests the compressor before it is welded and assembled. The control unit is connected to both the human-machine interface and each detector. The compressor to be tested is connected to each detector through a control selection circuit. This connection refers to the connection of the compressor's external port and does not require the compressor to be welded and assembled. The human-machine interface can set the detection order of each detector. The control unit controls the opening and closing of the selection circuit according to the detection order, so that the compressor is connected to the corresponding detector in sequence for testing.

[0037] In the prior art, after the compressor welding process, it needs to go through leak detection, electrophoretic coating and other processes in sequence, and finally wait for cooling before performance testing can be carried out. This process takes about 6 hours. This application can complete the performance test of the compressor before welding and assembly, avoiding the problem of disassembly due to abnormalities after assembly, and improving the efficiency of compressor testing and assembly.

[0038] Example 2

[0039] This application provides a test control method for a compressor, comprising:

[0040] S1: Input the compressor type in the control unit through the human-machine interface, set the detection order of each detector, and install the compressor; the compressor is an unassembled compressor; the compressor types include single-phase fixed-frequency compressor, three-phase fixed-frequency compressor and variable-frequency compressor.

[0041] In this application, the human-machine interface can be configured with mechanical buttons for inputting the compressor type. Before compressor installation, the compressor type can be obtained and input into the control unit. The human-machine interface can also be configured with mechanical buttons for inputting the compressor type and detection sequence. In addition, additional mechanical buttons can be connected to the control unit, such as... Figure 1 As shown, other functions of the control unit are used to control or detect the control unit.

[0042] S2: The control unit selects the corresponding detector and connects the compressor to the corresponding detector for testing by controlling the opening and closing of the selection circuit. The detectors include a start-up detector, an electromagnetic sound detector, an inter-turn detector, a magnetic flux detector, and an insulation withstand voltage detector. Correspondingly, the selection circuit includes a start-up switch circuit, an electromagnetic sound switch circuit, an inter-turn test switch circuit, a magnetic flux switch circuit, and an insulation withstand voltage switch circuit. Specifically, when the start-up switch circuit is closed, the compressor is connected to the start-up detector; when the electromagnetic sound switch circuit is closed, the compressor is connected to the electromagnetic sound detector; when the inter-turn test switch circuit is closed, the compressor is connected to the inter-turn detector; when the magnetic flux switch circuit is closed, the compressor is connected to the magnetic flux detector; and when the insulation withstand voltage switch circuit is closed, the compressor is connected to the insulation withstand voltage detector.

[0043] In this embodiment, multiple test stations can be tested simultaneously. These test stations can be connected to different detection units, meaning one control unit can be configured with a corresponding detector, or the same detector can be connected to one or more control units, with the detector's usage time staggered between two control units. For example... Figure 2 As shown, two control units are simultaneously connected to the same electromagnetic noise detector, inter-turn detector, and insulation withstand voltage detector. The test sequence selected in one control unit is electromagnetic noise detection, insulation withstand voltage detection, inter-turn detection, start-up operation detection, and magnetic flux detection; the test sequence selected in the other control unit is inter-turn detection, electromagnetic noise detection, insulation withstand voltage detection, start-up operation detection, and magnetic flux detection. In the early detection process, the electromagnetic noise detector, inter-turn detector, and insulation withstand voltage detector can be fully utilized to improve the detection efficiency of the compressor.

[0044] Figure 2 This is just one example; the specific detection sequence and the control units connected to each detector can be designed according to actual conditions. It is only necessary to ensure that the same control unit can only control one detector and its corresponding selection circuit at a time, and that the same detector can only be connected to one compressor for detection at a time.

[0045] S3: The control unit stores the detection data in the data center and displays it in the human-machine interface. The compressor detection is complete, and the output is processed; preparation is made for the next compressor test.

[0046] Example 3

[0047] This application provides a test control method for a compressor, comprising:

[0048] S1: Input the compressor type in the control unit through the human-machine interface, set the detection order of each detector, and install the compressor; the compressor is an unassembled compressor; the compressor types include single-phase fixed-frequency compressor, three-phase fixed-frequency compressor, and variable-frequency compressor;

[0049] S2: The control unit selects the corresponding detector and controls the opening and closing of the selection circuit to connect the compressor to the corresponding detector for detection.

[0050] The detectors in this application include a start-up operation detector, an electromagnetic sound detector, an inter-turn detector, a magnetic flux detector, and an insulation withstand voltage detector. Correspondingly, the selection circuits include a start-up operation switch circuit, an electromagnetic sound switch circuit, an inter-turn test switch circuit, a magnetic flux switch circuit, and an insulation withstand voltage switch circuit. Specifically, when the start-up operation switch circuit is closed, the compressor is connected to the start-up operation detector; when the electromagnetic sound switch circuit is closed, the compressor is connected to the electromagnetic sound detector; when the inter-turn test switch circuit is closed, the compressor is connected to the inter-turn detector; when the magnetic flux switch circuit is closed, the compressor is connected to the magnetic flux detector; and when the insulation withstand voltage switch circuit is closed, the compressor is connected to the insulation withstand voltage detector.

[0051] like Figure 3 As shown, the insulation withstand voltage switch circuit includes a withstand voltage switch KM9. The common terminal C1, the running terminal R1, and the starting terminal S1 of the compressor are connected to the insulation withstand voltage detector through the withstand voltage switch KM9. When the compressor is connected to the insulation withstand voltage detector for testing, the withstand voltage switch KM9 is closed.

[0052] The inter-turn test switch circuit includes an inter-turn switch KM7. The compressor's common terminal C1, running terminal R1, and starting terminal S1 are connected to the inter-turn detector through the inter-turn switch KM7. When the compressor is connected to the inter-turn detector for testing, the inter-turn switch KM7 is closed.

[0053] The electromagnetic noise switch circuit includes an electromagnetic noise switch KM6. The compressor's common terminal C1 and operating terminal R1 are both connected to the electromagnetic noise detector via the electromagnetic noise switch KM6. When the compressor is connected to the electromagnetic noise detector for testing, the electromagnetic noise switch KM6 closes. The electromagnetic noise test can be performed only on single-phase or three-phase fixed-frequency compressors; variable-frequency compressors do not require electromagnetic noise testing.

[0054] If the compressor is a single-phase fixed-frequency compressor, during the start-up and operation detection, the control unit controls the single-phase fixed-frequency compressor to connect to the single-phase fixed-frequency start-up and operation detector. Specifically, the common terminal and the operating terminal of the single-phase fixed-frequency compressor are connected to the single-phase fixed-frequency start-up and operation detector in sequence through start switch KM4 and single-phase fixed-frequency switch KM3. The start-up terminal of the single-phase fixed-frequency compressor is connected to node A in sequence through start switch KM4 and single-phase fixed-frequency switch KM3. Node A is simultaneously connected to one end of the first capacitor C1, the second capacitor C2, the third capacitor C3, and the fourth capacitor C4. The other end of the first capacitor C1 is connected to the single-phase fixed-frequency start-up and operation detector through the first capacitor switch KA1; the other end of the second capacitor C2 is connected to the single-phase fixed-frequency start-up and operation detector through the second capacitor switch KA2; the other end of the third capacitor C3 is connected to the single-phase fixed-frequency start-up and operation detector through the third capacitor switch KA3; and the other end of the fourth capacitor C4 is connected to the single-phase fixed-frequency start-up and operation detector through the fourth capacitor switch KA4.

[0055] If the compressor is a three-phase fixed-frequency compressor, during the start-up and operation test, the control unit controls the three-phase fixed-frequency compressor to connect to the three-phase fixed-frequency start-up and operation detector. Specifically, the common terminal C1, the operating terminal R1, and the start terminal S1 of the three-phase fixed-frequency compressor are connected to the three-phase fixed-frequency start-up and operation detector in sequence through the start switch KM4 and the three-phase fixed-frequency switch KM8.

[0056] If the compressor is a variable frequency compressor, during the start-up and operation test, the control unit controls the variable frequency compressor to connect to the variable frequency start-up and operation detector. Specifically, the common terminal C1, the operating terminal R1, and the start terminal S1 of the variable frequency compressor are all connected to one end of the variable frequency controller in sequence through the start switch KM4 and the first variable frequency switch KM5. The other end of the variable frequency controller is connected to the variable frequency start-up and operation detector through the second variable frequency switch KM5'. The first variable frequency switch KM5 and the second variable frequency switch KM5' are kept open and closed at the same time. The variable frequency controller includes the variable frequency control switch KA5.

[0057] When testing the compressor's start-up and operation capability, the current acquisition module TA1 can be used to measure the test current. Specifically, a current acquisition module is installed between the start switch KM4 and the single-phase fixed-frequency switch KM3, the three-phase fixed-frequency switch KM8, or the first variable-frequency switch KM5. The current acquisition module is wrapped around one of the lines connected to the compressor's common terminal, operating terminal, and start terminal, and is used to measure the current generated during the start-up and operation capability test to achieve the start-up and operation test.

[0058] The magnetic flux switching circuit includes a magnetic flux switch KM7. The common terminal and start-up terminal of the variable frequency compressor are sequentially connected to one end of the acquisition circuit board via a first variable frequency switch KM5 and the magnetic flux switch KM7. The other end of the acquisition circuit board is connected to a magnetic flux detector. The magnetic flux detector is equipped with a switch KA6. Magnetic flux detection is only required when the compressor type is a variable frequency compressor. When the compressor is a single-phase or three-phase fixed-frequency compressor, magnetic flux detection is not required. Therefore, the magnetic flux switching circuit of this application includes a first variable frequency switch KM5. After the variable frequency compressor completes its start-up and operation detection, the variable frequency control switch KA5 is opened, and the switch KA6 is closed to perform the magnetic flux test of the variable frequency compressor.

[0059] When the control unit is set to detect the following sequence: insulation withstand voltage test, inter-turn test, start-up operation test, magnetic flux test, and electromagnetic noise test, the control method of the above selection circuit is as follows:

[0060] S21: Perform insulation withstand voltage test. The control unit controls the withstand voltage switch KM9 to close and other switches to open, so that the compressor is connected to the insulation withstand voltage detector through the insulation withstand voltage switch circuit.

[0061] S22: Perform inter-turn detection. The control unit controls the inter-turn switch KM7 to close and other switches to open, so that the compressor is connected to the inter-turn detector through the inter-turn switch circuit.

[0062] S23: Perform start-up and operation detection, i.e., perform stator coil direction test and pump body compressor capacity test. When the compressor selected in the human-machine interface is a single-phase fixed-frequency compressor, the control unit controls the start switch KM4 and the single-phase fixed-frequency switch KM3 to close, and one of the first capacitor switch KA1, the second capacitor switch KA2, the third capacitor switch KA3 and the fourth capacitor switch KA4 to close, while the other switches are open, so that the single-phase fixed-frequency compressor is connected to the single-phase fixed-frequency start-up and operation detector through the start-up and operation switch circuit. The specific capacitance values ​​of the first capacitor C1, the second capacitor C2, the third capacitor C3 and the fourth capacitor C4 are different. The appropriate capacitor is selected according to the start-up situation of the single-phase fixed-frequency compressor.

[0063] When the compressor selected in the human-machine interface is a three-phase fixed-frequency compressor, the control unit controls the start switch KM4 and the three-phase fixed-frequency switch KM8 to close, and other switches to open; so that the three-phase fixed-frequency compressor is connected to the three-phase fixed-frequency start-up and operation detector through the start-up and operation switch circuit.

[0064] When the compressor selected in the human-machine interface is a variable frequency compressor, the control unit controls the start switch KM4, the first variable frequency switch KM5, the second variable frequency switch KM5' and the variable frequency control switch KA5 to close, and the other switches to open; so that the variable frequency compressor is connected to the variable frequency start-up detector through the start-up operation switch circuit.

[0065] It should be noted that in this application, a current acquisition module is provided between the start switch KM4 and the single-phase fixed frequency switch KM3 or the three-phase fixed frequency switch KM8 or the first frequency converter KM5. The current acquisition module is surrounded in the line connected to the common terminal of the compressor and is used to measure the current value during the start-up and operation detection process.

[0066] S24: Perform magnetic flux detection. Note: Magnetic flux detection only needs to be performed on the variable frequency compressor. If the compressor is a fixed frequency compressor, ignore this step. The control unit controls the first variable frequency switch KM5, magnetic flux switch KM7, and switch KA6 to close, while other switches are open; this connects the variable frequency compressor to the magnetic flux detector through the magnetic flux switch circuit.

[0067] S25: Perform electromagnetic noise detection. Note: Magnetic flux detection only needs to be performed on fixed-frequency compressors. If the compressor is a variable-frequency compressor, ignore this step. The control unit controls the electromagnetic noise switch KM6 to close and other switches to open, so that the compressor is connected to the electromagnetic noise detector through the electromagnetic noise switch circuit.

[0068] S3: The control unit feeds back the detection data to the data center and displays it on the human-machine interface. The compressor detection is complete and output is performed; preparation is made for the next compressor test.

[0069] This application tests the compressor before it is welded and assembled. The control unit is connected to both the human-machine interface and each detector. The compressor under test is connected to each detector via a control selection circuit. This connection refers to the connection to the compressor's external port; welding and assembly of the compressor are not required. The human-machine interface can set the testing order for each detector. The control unit controls the opening and closing of the selection circuit according to the testing order, allowing the compressor to be connected to the corresponding detector sequentially for testing. This application enables performance testing of the compressor before welding and assembly, avoiding the problem of disassembly due to abnormalities after assembly, and improving the efficiency of compressor testing and assembly.

[0070] It is understood that the above embodiments only illustrate preferred embodiments of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can freely combine the above technical features without departing from the concept of the present invention, and can also make several modifications and improvements, all of which fall within the protection scope of the present invention. Therefore, all equivalent transformations and modifications made with respect to the scope of the claims of the present invention should fall within the scope of the claims of the present invention.

Claims

1. A test control method for a compressor, characterized in that, include: The detection sequence of each detector is set in the control unit through a human-computer interaction interface, and the compressor is installed; the compressor is an un-welded and assembled compressor. The control unit selects the corresponding detector and controls the opening and closing of the selection circuit to connect the compressor to the corresponding detector for testing; multiple test stations are connected to different control units respectively, the same detector is connected to multiple control units at the same time, and the usage time of the same detector in two control units is staggered. The detector includes a start-up and operation detector, and the selection circuit includes a start-up and operation switch circuit. The compressor type is set in the control unit via a human-machine interface. When the compressor is connected to the start-up and operation detector for detection, if the compressor is a single-phase fixed-frequency compressor, both the common terminal and the operating terminal of the single-phase fixed-frequency compressor are connected to the single-phase fixed-frequency start-up and operation detector sequentially through start-up switch KM4 and single-phase fixed-frequency switch KM3. The start-up terminal of the single-phase fixed-frequency compressor is connected to node A sequentially through start-up switch KM4 and single-phase fixed-frequency switch KM3. Node A is simultaneously connected to one end of the first capacitor C1, the second capacitor C2, the third capacitor C3, and the fourth capacitor C4. The other end of the first capacitor C1 is connected to the single-phase fixed-frequency start-up and operation detector through the first capacitor switch KA1; the other end of the second capacitor C2 is connected to the single-phase fixed-frequency start-up and operation detector through the second capacitor switch KA2. The other end of the third capacitor C3 is connected to the single-phase fixed-frequency start-up and operation detector through the third capacitor switch KA3; the other end of the fourth capacitor C4 is connected to the single-phase fixed-frequency start-up and operation detector through the fourth capacitor switch KA4; when the compressor is a three-phase fixed-frequency compressor, the common end, running end, and start end of the three-phase fixed-frequency compressor are connected to the three-phase fixed-frequency start-up and operation detector in sequence through the start switch KM4 and the three-phase fixed-frequency switch KM8; when the compressor is a variable-frequency compressor, the common end, running end, and start end of the variable-frequency compressor are connected to one end of the variable-frequency controller in sequence through the start switch KM4 and the first variable-frequency switch KM5, and the other end of the variable-frequency controller is connected to the variable-frequency start-up and operation detector through the second variable-frequency switch KM5', wherein the first variable-frequency switch KM5 and the second variable-frequency switch KM5' are kept open and closed at the same time, and the variable-frequency controller includes a variable-frequency control switch KA5; The control unit stores the detection data, and the compressor outputs the data.

2. The test control method for a compressor according to claim 1, characterized in that, The control unit stores the detection data, specifically by storing the detection data in the data center and displaying it on the human-computer interaction interface.

3. The test control method for a compressor according to claim 1, characterized in that, The detectors also include electromagnetic sound detectors, inter-turn detectors, magnetic flux detectors, and insulation withstand voltage detectors.

4. The test control method for a compressor according to claim 3, characterized in that, The selection circuit also includes an electromagnetic tone switch circuit, an inter-turn test switch circuit, a magnetic flux switch circuit, and an insulation withstand voltage switch circuit.

5. The test control method for a compressor according to claim 4, characterized in that, The insulation withstand voltage switch circuit includes a withstand voltage switch KM9. The common terminal, operating terminal and starting terminal of the compressor are respectively connected to the insulation withstand voltage detector through the withstand voltage switch KM9. When the compressor is connected to the insulation withstand voltage detector for testing, the withstand voltage switch KM9 is closed.

6. The test control method for a compressor according to claim 4, characterized in that, The inter-turn test switch circuit includes an inter-turn switch KM7. The common terminal, operating terminal, and starting terminal of the compressor are respectively connected to the inter-turn detector through the inter-turn switch KM7. When the compressor is connected to the inter-turn detector for testing, the inter-turn switch KM7 is closed.

7. The test control method for a compressor according to claim 4, characterized in that, The electromagnetic sound switch circuit includes an electromagnetic sound switch KM6. The common terminal and the operating terminal of the compressor are both connected to the electromagnetic sound detector through the electromagnetic sound switch KM6. When the compressor is connected to the electromagnetic sound detector for detection, the electromagnetic sound switch KM6 is closed.

8. The test control method for a compressor according to claim 4, characterized in that, A current acquisition module is provided between the start switch KM4 and the single-phase fixed frequency switch KM3, the three-phase fixed frequency switch KM8, or the first variable frequency switch KM5. The current acquisition module is wrapped around one of the lines connected to the compressor's common terminal, operating terminal, and start terminal.

9. The test control method for a compressor according to claim 4, characterized in that, The magnetic flux switching circuit includes a magnetic flux switch KM7. The common terminal and the start terminal of the variable frequency compressor are connected to one end of the acquisition circuit board in sequence through the magnetic flux switch KM7, and the other end of the acquisition circuit board is connected to the magnetic flux detector.

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