Wireless high-voltage motor insulation on-line detection device

Abstract

The utility model discloses a wireless high-voltage motor insulation on-line detection device comprising a control module which is provided with a first chip; the high-voltage monitoring module is provided with a wireless control unit, a switch monitoring unit, a signal processing unit, a high-voltage direct-current injection unit and a high-voltage isolation module, the signal sending device is connected with the second chip and the first chip, the second chip is electrically connected with the first chip, and the second chip is electrically connected with the second chip. The switch monitoring unit is electrically connected with the first chip, the signal processing unit is electrically connected with the control module and the high-voltage direct-current injection unit, and the high-voltage direct-current injection unit is electrically connected with the high-voltage isolation module; and the acquisition unit is respectively connected with the tested high-voltage motor and the high-voltage monitoring module. The high-voltage module obtains an insulation resistance value of a high-voltage motor and directly sends the insulation resistance value to the control module, and a cable does not need to be laid between the control module and the high-voltage monitoring module as a signal transmission channel.

Description

Technical Field

[0001] The utility model relates to the technical field of high-voltage motor insulation detection, in particular to a wireless high-voltage motor insulation online detection device. Background Art

[0002] At present, high-voltage motor insulation detection devices use RS485 as a means of data transmission. During on-site construction, a cable must be laid from the high-voltage primary circuit for data collection to the secondary circuit of the host as a signal transmission channel. The high-voltage motor insulation detection equipment cannot obtain accurate information on the insulation resistance of the high-voltage motor being tested, resulting in maintenance personnel being unable to obtain accurate insulation fault information about the motor. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a wireless high-voltage motor insulation online detection device, which can obtain accurate insulation resistance information of the tested high-voltage motor without laying cables.

[0004] On the one hand, according to an embodiment of the present invention, a wireless high-voltage motor insulation online detection device includes:

[0005] A control module, wherein the control module is provided with a first chip;

[0006] A high-voltage monitoring module, wherein the high-voltage monitoring module is connected to the first chip of the control module, the high-voltage monitoring module is provided with a wireless control unit, a switch monitoring unit, a signal processing unit, a high-voltage direct current injection unit and a collection unit, the wireless control unit is provided with a second chip and a signal sending device, the signal sending device is respectively connected to the second chip and the first chip, the signal sending device is used to wirelessly connect the control module and the high-voltage monitoring module, the second chip is electrically connected to the first chip, the second chip is electrically connected to the first chip of the control module, the switch monitoring unit is electrically connected to the first chip of the control module, the signal processing unit is respectively electrically connected to the control module and the high-voltage direct current injection unit, and the high-voltage direct current injection unit is electrically connected to the collection unit;

[0007] A high-voltage isolation module is connected to the high-voltage motor under test and the high-voltage monitoring module respectively, wherein the acquisition unit is connected to any one of the high-voltage motors under test through the high-voltage isolation module.

[0008] According to some embodiments of the utility model, the wireless control unit is provided with a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a ninth resistor, a tenth resistor, an eleventh resistor, a twelfth resistor, a thirteenth resistor, a fourteenth resistor, a first diode and a second diode, one end of the first resistor and the second resistor are both connected to the second pin of the second chip, the other end of the first resistor is grounded, the other end of the second resistor is connected to the eighteenth pin of the first chip, one end of the third resistor and the fourth resistor are both connected to the third pin of the second chip, the other end of the third resistor is grounded, the other end of the fourth resistor is connected to the seventeenth pin of the second chip, one end of the fifth resistor and the sixth resistor are both connected to the fourth pin of the second chip, the other end of the fifth resistor is grounded, and the other end of the sixth resistor is connected to The sixteenth pin of the first chip is connected, one end of the seventh resistor and the eighth resistor are both connected to the fifth pin of the second chip, the other end of the seventh resistor is grounded, the other end of the eighth resistor is connected to the fifteenth pin of the first chip, one end of the ninth resistor and the tenth resistor are both connected to the sixth pin of the second chip, the other end of the ninth resistor is grounded, the other end of the tenth resistor is connected to the fourteenth pin of the first chip, one end of the eleventh resistor and the twelfth resistor are both connected to the sixteenth pin of the second chip, the other end of the eleventh resistor is grounded, the other end of the twelfth resistor is connected to the nineteenth pin of the first chip, one end of the thirteenth resistor and the fourteenth resistor are both connected to the fifteenth pin of the second chip, the other end of the thirteenth resistor is grounded, and the other end of the fourteenth resistor is connected to the twentieth pin of the first chip.

[0009] 2. According to some embodiments of the present utility model, the switch monitoring unit is provided with a first signal access socket, a second signal access socket, a fifteenth resistor, a sixteenth resistor, a seventeenth resistor, an eighteenth resistor, a nineteenth resistor, a twentieth resistor, a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, a fifth capacitor, a sixth capacitor, a first optical coupler relay, a second optical coupler relay and a third optical coupler relay, one end of the fifteenth resistor is connected to the first pin of the first signal access socket, the other end of the fifteenth resistor and one end of the first capacitor are both connected to the first end of the first optical coupler relay, the other end of the first capacitor is connected to the second end of the first optical coupler relay, the third end of the first optical coupler relay is respectively connected to the sixteenth resistor and one end of the second capacitor, the other end of the sixteenth resistor is connected to the forty-sixth pin of the first chip, one end of the second capacitor is also connected to the third pin of the first signal access socket, the other end of the second capacitor is connected to the forty-eighth pin of the first chip, and one end of the seventeenth resistor is connected to the second pin of the first signal access socket. The other end of the seventeenth resistor and one end of the third capacitor are both connected to the first end of the second optocoupler relay, the other end of the third capacitor is connected to the second end of the second optocoupler relay, one end of the eighteenth resistor and one end of the fourth capacitor are both connected to the third end of the second optocoupler relay, the other end of the eighteenth resistor is connected to the forty-sixth pin of the first chip, one end of the fourth capacitor is also connected to the thirty-fifth pin of the first chip, the other end of the fourth capacitor is connected to the forty-seventh pin of the first chip, one end of the nineteenth resistor is connected to one end of the first signal access socket, one end of the fifth capacitor is connected to the first end of the third optocoupler relay, the other end of the nineteenth resistor and the other end of the fifth capacitor are both connected to the second end of the third optocoupler relay, the third end of the third optocoupler relay is respectively connected to the twenty resistors and one end of the sixth capacitor, one end of the sixth capacitor is also connected to the sixteenth pin of the second signal access socket, and the other end of the sixth capacitor and the fourth end of the third optocoupler relay are both grounded.

[0010] According to some embodiments of the utility model, the signal processing unit includes a twenty-first resistor, a twenty-second resistor, a twenty-third resistor, a twenty-fourth resistor, a twenty-fifth resistor, a twenty-sixth resistor, a twenty-seventh resistor, a twenty-eighth resistor, a twenty-ninth resistor, a thirtieth resistor, a thirty-first resistor, a thirty-second resistor, a thirty-third resistor, a thirty-fourth resistor, a thirty-fifth resistor, a thirty-sixth resistor, a thirty-seventh resistor, a seventh capacitor, an eighth capacitor, a ninth capacitor, a tenth capacitor, a first operational amplifier, a second operational amplifier, a third operational amplifier, a fourth operational amplifier and a third chip, one end of the twenty-first resistor is connected to the high-voltage isolation module, and the other end of the twenty-first resistor is connected to the first end of the first operational amplifier The second end and the third end of the first operational amplifier are connected to one end of the twenty-second resistor, the other end of the twenty-second resistor, one end of the twenty-third resistor, and one end of the seventh capacitor are all connected to one end of the twenty-fourth resistor, the other end of the twenty-third resistor and the other end of the seventh capacitor are both connected to the twelfth pin of the third chip, the other end of the twenty-fourth resistor and one end of the twenty-fifth resistor are both connected to the first end of the second operational amplifier, the second end of the second operational amplifier is connected to the twelfth pin of the third chip, the other end of the twenty-fifth resistor and the third end of the second operational amplifier are both connected to one end of the twenty-sixth resistor, and the other end of the twenty-sixth resistor One end of the twenty-seventh resistor and one end of the eighth capacitor are connected to the fifth pin of the third chip, the other end of the twenty-seventh resistor and the other end of the eighth capacitor are connected to the twelfth pin of the third chip, one end of the twenty-eighth resistor is connected to the high-voltage isolation module, the other end of the twenty-eighth resistor is connected to the first end of the third operational amplifier, one end of the twenty-ninth resistor is connected to the ninth pin of the third chip, the other end of the twenty-ninth resistor is connected to the thirtieth resistor, the other end of the thirtieth resistor, the second end of the third operational amplifier and the third end of the third operational amplifier are connected to one end of the thirty-first resistor, and the thirty-first The other end of the resistor, one end of the thirty-second resistor and one end of the ninth capacitor are all connected to one end of the thirty-third resistor, the other end of the thirty-second resistor and the other end of the ninth capacitor are all connected to the ninth pin of the third chip, the other end of the thirty-third resistor and one end of the thirty-fourth resistor are all connected to the first end of the fourth operational amplifier, the second end of the fourth operational amplifier is connected to the ninth pin of the third chip, the other end of the thirty-fourth resistor and the third end of the fourth operational amplifier are all connected to one end of the thirty-fifth resistor, the other end of the thirty-fifth resistor, one end of the thirty-sixth resistor and one end of the tenth capacitor are all connected to the seventh pin of the third chip,The other end of the thirty-sixth resistor and the other end of the tenth capacitor are both connected to the ninth pin of the third chip.

[0011] According to some embodiments of the utility model, the high-voltage isolation module is provided with a thirty-seventh resistor, a thirty-eighth resistor, a thirty-ninth resistor, a forty-first resistor, a forty-second resistor, a forty-third resistor, a forty-fourth resistor, a forty-fifth resistor, a forty-sixth resistor, a forty-seventh resistor, a forty-eighth resistor, a forty-ninth resistor, an eleventh capacitor, a twelfth capacitor, a thirteenth capacitor and a fourteenth capacitor, one end of the thirty-seventh resistor is connected to the high-voltage direct current injection unit, the other end of the thirty-seventh resistor is connected to one end of the thirty-eighth resistor, the other end of the thirty-eighth resistor, one end of the thirty-ninth resistor, and one end of the eleventh capacitor are all connected to one end of the fortieth resistor, the other end of the fortieth resistor and one end of the twelfth capacitor are both connected to the signal processing unit, and the other end of the thirty-nine resistor, the other end of the eleventh capacitor and the other end of the twelfth capacitor are connected to the signal processing unit. The forty-first resistor is connected to one end of the forty-second resistor, the other end of the forty-second resistor is connected to one end of the forty-third resistor, the other end of the forty-third resistor is connected to one end of the forty-fourth resistor, the other end of the forty-fourth resistor is connected to one end of the forty-fifth resistor, the other end of the forty-fifth resistor is connected to one end of the forty-sixth resistor, the other end of the forty-sixth resistor is connected to one end of the forty-seventh resistor, the other end of the forty-seventh resistor is respectively connected to the forty-eighth resistor, the forty-ninth resistor and one end of the thirteenth capacitor, the other end of the forty-eighth resistor, the other end of the thirteenth capacitor and one end of the fourteenth capacitor are all connected to the forty-seventh pin of the first chip, and the other ends of the forty-ninth resistor and the fourteenth capacitor are connected to the signal processing unit.

[0012] According to some embodiments of the utility model, the high-voltage direct current injection unit is provided with a fourth chip, a fiftieth resistor, a fifty-first resistor, a fifty-second resistor, a fifty-third resistor and a fifteenth capacitor, one end of the fiftieth resistor is connected to the sixth pin of the fourth chip, the other end of the fiftieth resistor and one end of the fifty-first resistor are both connected to the fifth pin of the fourth chip, the other end of the fifty-first resistor is connected to the second pin and the third pin of the fourth chip, one end of the fifty-second resistor is connected to the seventh pin of the fourth chip, the other end of the fifty-second resistor is connected to one end of the fifty-third resistor, the other end of the fifty-third resistor and one end of the fifteenth capacitor are connected to the high-voltage isolation module, and the other end of the fifteenth capacitor is connected to the eighth pin of the fourth chip.

[0013] According to some embodiments of the utility model, the acquisition unit is provided with a fifty-third resistor, a fifty-fourth resistor, a fifty-fifth resistor, a fifty-sixth resistor, a fifty-seventh resistor, a fifty-eighth resistor, a fourth relay, a fifth relay, a first acquisition device and a second acquisition device, one end of the fifty-third resistor is connected to the high-voltage motor under test, the other end of the fifty-third resistor is connected to one end of the fourth relay, the other end of the fourth relay and one end of the fifty-fourth resistor are both connected to one end of the fifty-fifth resistor, the other end of the fifty-fourth resistor and one end of the fifty-sixth resistor are both connected to the first acquisition device, the other end of the fifty-sixth resistor is grounded, the other end of the fifty-fifth resistor is connected to one end of the fifth relay, the other end of the fifth relay and one end of the fifty-seventh resistor are both connected to the high-voltage monitoring module, the other end of the fifty-seventh resistor and one end of the fifty-eighth resistor are both connected to the second acquisition device, and the other end of the fifty-eighth resistor is grounded.

[0014] According to some embodiments of the present invention, the control module further includes a display unit, a key control unit and a communication unit.

[0015] The wireless high-voltage motor insulation online detection device according to the embodiment of the utility model has at least the following beneficial effects:

[0016] A control module, wherein the control module is provided with a first chip; a high-voltage monitoring module, wherein the high-voltage monitoring module is connected to the first chip of the control module, wherein the high-voltage monitoring module is provided with a wireless control unit, a switch monitoring unit, a signal processing unit, a high-voltage direct current injection unit and an acquisition unit, wherein the wireless control unit is provided with a second chip and a signal sending device, wherein the signal sending device is respectively connected to the second chip and the first chip, wherein the signal sending device is used to wirelessly connect the control module and the high-voltage monitoring module, wherein the second chip is electrically connected to the first chip of the control module, wherein the switch monitoring unit is electrically connected to the first chip of the control module, wherein the signal processing unit is respectively electrically connected to the control module and the high-voltage direct current injection unit, wherein the high-voltage direct current injection unit is electrically connected to the acquisition unit; and a high-voltage isolation module, wherein the high-voltage isolation module is respectively connected to the high-voltage motor to be tested and the high-voltage monitoring module. According to the embodiment of the utility model, the control module is connected to the high-voltage monitoring module, and the high-voltage DC injection unit directly injects high voltage into the high-voltage motor, obtains the insulation resistance value of the high-voltage motor and sends it directly to the control module through the wireless control unit, so that there is no need to lay cables as signal transmission channels between the control module and the high-voltage detection module, and the status of the high-voltage motor is monitored in real time through the switch monitoring unit, the signal processing unit and the acquisition unit, thereby ensuring that maintenance personnel can obtain accurate insulation fault information of the high-voltage motor in real time and ensure the accuracy of the high-voltage motor insulation monitoring device.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 This is a principle structure diagram of a wireless high-voltage motor insulation monitoring device according to an embodiment of the utility model;

[0020] Figure 2 This is a circuit schematic diagram of the first chip of an embodiment of the utility model;

[0021] Figure 3 This is a circuit diagram of the second chip of the wireless control unit of an embodiment of the utility model;

[0022] Figure 4 This is a circuit diagram of a switch monitoring unit according to an embodiment of the present utility model;

[0023] Figure 5 A circuit schematic diagram of a signal processing unit according to an embodiment of the present utility model;

[0024] Figure 6 This is a circuit schematic diagram of the third chip of the signal processing unit of an embodiment of the utility model;

[0025] Figure 7 This is a circuit schematic diagram of a high voltage isolation module according to an embodiment of the present utility model;

[0026] Figure 8 This is a circuit schematic diagram of the fourth chip of the high voltage direct current injection unit of an embodiment of the utility model;

[0027] Fig. 9 The schematic diagram of the circuit of the acquisition unit of the embodiment of the utility model is shown in FIG.

[0028] Reference numerals:

[0029] Control module 100 , high voltage monitoring module 200 , wireless control unit 210 , switch monitoring unit 220 , signal processing unit 230 , high voltage DC injection unit 240 , acquisition unit 250 , high voltage isolation module 300 and high voltage motor 400 . DETAILED DESCRIPTION

[0030] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0031] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0032] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0033] Reference Figures 1 to 9The utility model embodiment provides a wireless high-voltage motor insulation monitoring device, including a control module 100, the control module 100 is provided with a first chip U1; a high-voltage monitoring module 200, the high-voltage monitoring module 200 is electrically connected to the first chip U1 of the control module 100, the high-voltage monitoring module 200 is provided with a wireless control unit 210, a switch monitoring unit 220, a signal processing unit 230, a high-voltage direct current injection unit 240 and a collection unit 250, the wireless control unit 210 is provided with a second chip U2 and a signal sending device, the signal sending device is respectively connected to the second chip U2 and the first chip U1 The signal sending device is used to wirelessly connect the control module and the high-voltage monitoring module, the second chip U2 is electrically connected to the first chip U1, the second chip U2 is electrically connected to the first chip U1 of the control module 100, the switch monitoring unit 210 is electrically connected to the first chip U1 of the control module 100, the signal processing unit 230 is electrically connected to the control module 100 and the high-voltage direct current injection unit 240 respectively, and the high-voltage direct current injection unit 240 is electrically connected to the acquisition unit 250; the high-voltage isolation module 300, the high-voltage isolation module 300 is respectively connected to the high-voltage motor 400 under test and the high-voltage monitoring module 200. According to an embodiment of the utility model, the control module 100 is connected to the high-voltage monitoring module 200, and the high-voltage direct current injection unit 240 directly injects high voltage into the high-voltage motor 400, obtains the insulation resistance value of the high-voltage motor 400 and sends it directly to the control module 100 through the wireless control unit 210, so that there is no need to lay cables as a signal transmission channel between the control module 100 and the high-voltage monitoring module 200, and the status of the high-voltage motor 400 is monitored in real time through the switch monitoring unit 220, the signal processing unit 230 and the acquisition unit 250, thereby ensuring that maintenance personnel can obtain accurate insulation fault information of the high-voltage motor in real time and ensure the accuracy of the high-voltage motor insulation monitoring device.

[0034] It should be noted that the first chip U1 of the control module of this embodiment adopts the HT6019 chip, which is mainly used for the control module to receive and decode the signal sent from the wireless control unit, and send the decoded signal to the host computer for further processing. In addition, the HT6019 chip can operate within a higher voltage range and has strong anti-interference ability. It can effectively filter external noise and interference signals, and improve the monitoring reliability of the wireless high-voltage motor insulation monitoring device.

[0035] Reference Figure 2The wireless control unit is provided with a first resistor R1, a second resistor R2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, a seventh resistor R7, an eighth resistor R8, a ninth resistor R9, a tenth resistor R10, an eleventh resistor R11, a twelfth resistor R12, a thirteenth resistor R13, a fourteenth resistor R14, a first diode D1, a second diode D2 and a wireless communication device ANT, one end of the first resistor R1 and the second resistor R2 are both connected to the second pin of the second chip U2, and the other end of the first resistor R1 is grounded, The other end of the second resistor R2 is connected to the eighteenth pin of the first chip U1, one end of the third resistor R3 and the fourth resistor R4 are both connected to the third pin of the second chip U2, the other end of the third resistor R3 is grounded, the other end of the fourth resistor R4 is connected to the seventeenth pin of the second chip U2, one end of the fifth resistor R5 and the sixth resistor R6 are both connected to the fourth pin of the second chip U2, the other end of the fifth resistor R5 is grounded, the other end of the sixth resistor R6 is connected to the sixteenth pin of the first chip U1, one end of the seventh resistor R7 and the eighth resistor R8 are both connected to the first pin of the The fifth pin of the second chip U2 is connected to the fifth pin of the second chip U2, the other end of the seventh resistor R7 is grounded, the other end of the eighth resistor R8 is connected to the fifteenth pin of the first chip U1, one end of the ninth resistor R9 and the tenth resistor R10 are both connected to the sixth pin of the second chip U2, the other end of the ninth resistor R9 is grounded, the other end of the tenth resistor R10 is connected to the fourteenth pin of the first chip U1, one end of the eleventh resistor R11 and the twelfth resistor R12 are both connected to the sixteenth pin of the second chip U2, the other end of the eleventh resistor R11 is grounded, and the other end of the twelfth resistor R12 is connected to the sixteenth pin of the second chip U2. One end is connected to the nineteenth pin of the first chip U1, one end of the thirteenth resistor R13 and the fourteenth resistor R14 are both connected to the fifteenth pin of the second chip U2, the other end of the thirteenth resistor R13 is grounded, the other end of the fourteenth resistor R14 is connected to the twentieth pin of the first chip U1, the cathode of the first diode D1 and the wireless communication device ANT are both connected to the ninth pin of the second chip U2, the anode of the first diode D1 is connected to the anode of the second diode D2, and the cathode of the second diode D2 is connected to the forty-seventh pin of the first chip U1.

[0036] It should be noted that the second chip U2 adopts the SX1268 chip, which has good sensitivity and anti-interference ability, and has low power consumption and is capable of high-speed and long-distance wireless signal transmission. The thirteenth resistor R13, the fourteenth resistor R14, the first diode, the second diode, the wireless communication device and the second chip U2 work together to achieve wireless signal transmission between the first chip U1 and the second chip U2, so that the control module can remotely receive the relevant information parameters of the high-voltage motor under test sent by the high-voltage monitoring module and the acquisition unit. Specifically, the first diode and the second diode are ESD tubes, which are used to suppress the electrostatic high-voltage pulses generated during the operation of the high-voltage motor from causing damage to the internal circuit of the wireless control unit; the wireless communication device ANT is externally connected to an antenna.

[0037] The switch monitoring unit is provided with a first signal access socket, a second signal access socket, a fifteenth resistor R15, a sixteenth resistor R16, a seventeenth resistor R17, an eighteenth resistor R18, a nineteenth resistor R19, a twentieth resistor R20, a first capacitor C1, a second capacitor C2, a third capacitor C3, a fourth capacitor C4, a fifth capacitor C5, a sixth capacitor C6, a first optical coupler relay KA1, a second optical coupler relay KA2 and a third optical coupler relay KA3, one end of the fifteenth resistor R15 is connected to the first pin of the first signal access socket, and the other end of the fifteenth resistor R15 is connected to the first pin of the first signal access socket. One end of the capacitor C1 is connected to the first end of the first relay KA1, the other end of the first capacitor C1 is connected to the second end of the first relay KA1, the third end of the first optical coupler relay KA1 is respectively connected to the sixteenth resistor R16 and one end of the second capacitor C2, the other end of the sixteenth resistor R16 is connected to the forty-sixth pin of the first chip U1, one end of the second capacitor C2 is also connected to the third pin of the first signal access socket, the other end of the second capacitor C2 is connected to the forty-eighth pin of the first chip U1, one end of the seventeenth resistor R17 is connected to the first signal access socket The other end of the seventeenth resistor R17 and one end of the third capacitor C3 are both connected to the first end of the second optocoupler relay KA2, the other end of the third capacitor C3 is connected to the second end of the second optocoupler relay KA2, one end of the eighteenth resistor R18 and one end of the fourth capacitor C4 are both connected to the third end of the second optocoupler relay KA2, the other end of the eighteenth resistor R18 is connected to the forty-sixth pin of the first chip U1, one end of the fourth capacitor C4 is also connected to the thirty-fifth pin of the first chip U1, and the other end of the fourth capacitor C4 is connected to the fourth Seventeen pins are connected, one end of the nineteenth resistor R19 is connected to one end of the first signal access socket, one end of the fifth capacitor C5 is connected to the first end of the third optocoupler relay KA3, the other end of the nineteenth resistor R19 and the other end of the fifth capacitor C5 are both connected to the second end of the third optocoupler relay KA3, the third end of the third optocoupler relay KA3 is respectively connected to the twenty resistors and one end of the sixth capacitor C6, one end of the sixth capacitor C6 is also connected to the sixteenth pin of the second signal access socket, and the other end of the sixth capacitor C6 and the fourth end of the third optocoupler relay KA3 are both grounded.It should be noted that the switch monitoring unit is used to monitor the switch state of the high-voltage motor under test to ensure power safety and stable operation. By collecting real-time status information of the first optocoupler relay KA1, the second optocoupler relay KA2 and the third optocoupler relay KA3, when the switch state of the optocoupler relay changes, a corresponding judgment is made, and the collected optocoupler relay signal is filtered through the first capacitor C1, the second capacitor C2, the third capacitor C3, the fourth capacitor C4, the fifth capacitor C5, and the sixth capacitor C6, so that the high-voltage monitoring module can accurately and reliably identify the switch state of the optocoupler relay, and send the acquired information to the control module through the wireless control unit, so as to realize the monitoring of multiple switches in the wireless high-voltage motor insulation monitoring device and ensure the connection status with the high-voltage motor under test.

[0038] The signal processing unit includes a twenty-first resistor R21, a twenty-second resistor R22, a twenty-third resistor R23, a twenty-fourth resistor R24, a twenty-fifth resistor R25, a twenty-sixth resistor R26, a twenty-seventh resistor R27, a twenty-eighth resistor R28, a twenty-ninth resistor R29, a thirtieth resistor R30, a thirty-first resistor R31, a thirty-second resistor R32, a thirty-third resistor R33, a thirty-fourth resistor R34, a thirty-fifth resistor R35, a thirty-sixth resistor R36, a thirty-seventh resistor R37, a seventh capacitor C7, an eighth capacitor C8, a ninth capacitor C9, a tenth capacitor C10, a first operational amplifier, a second operational amplifier, a third operational amplifier, a fourth operational amplifier and a third chip U3, the twenty-first One end of the resistor R21 is connected to the high-voltage isolation module, the other end of the twenty-first resistor R21 is connected to the first end of the first operational amplifier, the second end and the third end of the first operational amplifier are connected to one end of the twenty-second resistor R22, the other end of the twenty-second resistor R22, one end of the twenty-third resistor R23, and one end of the seventh capacitor C7 are all connected to one end of the twenty-fourth resistor R24, the other end of the twenty-third resistor R23 and the seventh capacitor C7 are both connected to the twelfth pin of the third chip U3, the other end of the twenty-fourth resistor R24 ​​and one end of the twenty-fifth resistor R25 are both connected to the first end of the second operational amplifier, the second end of the second operational amplifier is connected to the twelfth pin of the third chip U3, and the twenty-fifth resistor R24 ​​is connected to the first end of the second operational amplifier. The other end of R25 and the third end of the second operational amplifier are connected to one end of the twenty-sixth resistor R26, the other end of the twenty-sixth resistor R26, one end of the twenty-seventh resistor R27 and one end of the eighth capacitor C8 are connected to the fifth pin of the third chip U3, the other end of the twenty-seventh resistor R27 and the other end of the eighth capacitor C8 are connected to the twelfth pin of the third chip U3, one end of the twenty-eighth resistor R28 is connected to the high-voltage isolation module, the other end of the twenty-eighth resistor R28 is connected to the first end of the third operational amplifier, one end of the twenty-ninth resistor R29 is connected to the ninth pin of the third chip U3, the other end of the twenty-ninth resistor R29 is connected to the thirtieth resistor R30, and the other end of the thirtieth resistor R30 is connected to the The first end of the fourth operational amplifier is connected to the ninth pin of the third chip U3, the second end of the fourth operational amplifier is connected to the ninth pin of the third chip U3, the other end of the thirty-fourth resistor R34 and the third end of the fourth operational amplifier are connected to one end of the thirty-fifth resistor R35, the second end of the fourth operational amplifier is connected to the ninth pin of the third chip U3, the other end of the thirty-fourth resistor R34 and the third end of the fourth operational amplifier are connected to one end of the thirty-fifth resistor R35,The other end of the thirty-fifth resistor R35, one end of the thirty-sixth resistor R36 and one end of the tenth capacitor C10 are all connected to the seventh pin of the third chip U3, and the other end of the thirty-sixth resistor R36 and the other end of the tenth capacitor C10 are all connected to the ninth pin of the third chip U3. It should be noted that the third chip U3 is an MS5193T chip, which is a high-precision AD conversion chip used to collect line measurement and internal collection voltages. The signal is transmitted to the switch signal processing unit, and the switch signal processing unit transmits the detected switch status signal to the control module through the wireless control unit. Converting the switch status information into a digital signal or a specific data format enables the monitoring device to realize remote data transmission, which is convenient for the monitoring and management of the insulation monitoring device. ,

[0039] The high-voltage isolation module is provided with a thirty-seventh resistor R37, a thirty-eighth resistor R38, a thirty-ninth resistor R39, a fortieth resistor R40, a forty-first resistor R41, a forty-second resistor R42, a forty-third resistor R43, a forty-fourth resistor R44, a forty-fifth resistor R45, a forty-sixth resistor R46, a forty-seventh resistor R47, a forty-eighth resistor R48, a forty-ninth resistor R49, an eleventh capacitor C11, a twelfth capacitor C12, a thirteenth capacitor C13 and a fourteenth capacitor C14, one end of the thirty-seventh resistor R37 is connected to the high-voltage direct current injection unit, the other end of the thirty-seventh resistor R37 is connected to one end of the thirty-eighth resistor R38, the other end of the thirty-eighth resistor R38, one end of the thirty-ninth resistor R39, and one end of the eleventh capacitor C11 are all connected to one end of the fortieth resistor R40, the other end of the fortieth resistor R40 and one end of the twelfth capacitor C12 are all connected to the signal processing unit, the other end of the thirty-ninth resistor, the other end of the eleventh capacitor C11 and the The other ends of the twelve capacitors C12 are connected to the forty-seventh pin of the first chip U1, the forty-first resistor R41 is connected to one end of the forty-second resistor R42, the other end of the forty-second resistor R42 is connected to one end of the forty-third resistor R43, the other end of the forty-third resistor R43 is connected to one end of the forty-fourth resistor R44, the other end of the forty-fourth resistor R44 is connected to one end of the forty-fifth resistor R45, the other end of the forty-fifth resistor R45 is connected to one end of the forty-sixth resistor R46, the other end of the forty-sixth resistor R46 is connected to one end of the forty-seventh resistor R47, the other end of the forty-seventh resistor R47 is respectively connected to the forty-eighth resistor R48, the forty-ninth resistor R49 and one end of the thirteenth capacitor C13, the other end of the forty-eighth resistor R48, the other end of the thirteenth capacitor C13 and one end of the fourteenth capacitor C14 are all connected to the forty-seventh pin of the first chip U1, and the forty-ninth resistor R49 and the other ends of the fourteenth capacitors are connected to the signal processing unit. It should be noted that the high-voltage isolation module is used to isolate high-voltage signals, stabilize signal transmission, and protect the signal processing unit. Specifically, the thirty-seventh resistor R37 is used to isolate the high-voltage DC injection unit. The thirty-seventh resistor R37 is connected to the thirty-eighth resistor R38 to transmit the signal to the thirty-eighth resistor R38. The thirty-eighth resistor R38, the thirty-ninth resistor R39, and one end of the eleventh capacitor C11 are connected to one end of the fortieth resistor R40 to form a filtering circuit for stabilizing the signal and transmitting the signal to the fortieth resistor R40. The fortieth resistor R40 transmits the filtered signal to the signal processing unit for processing and analysis. The other end of the thirty-ninth resistor R39, the eleventh capacitor C11, and the twelfth capacitor C12 is connected to the forty-seventh pin of the first chip U1 for data transmission or input and output of control signals.The forty-first resistor R41 is connected to the forty-second resistor R42, and the forty-second resistor R42 is connected to the forty-third resistor R43, thereby forming a series connection of resistors. The forty-seventh resistor R47 is connected to the forty-fifth resistor R45 and the forty-fourth resistor R44 through the forty-sixth resistor R46, forming a parallel connection of resistors. The other end of the forty-seventh resistor R47 is respectively connected to the forty-eighth resistor R48, the forty-ninth resistor R49 and one end of the thirteenth capacitor C13 to play a filtering, stabilizing and isolating role. One end of the forty-eighth resistor R48, the thirteenth capacitor C13 and the fourteenth capacitor C14 is connected to the forty-seventh pin of the first chip U1 for data transmission or input and output of control signals.

[0040] The high-voltage direct current injection unit is provided with a fourth chip HV1, a fiftieth resistor R50, a fifty-first resistor R51, a fifty-second resistor R52, a fifty-third resistor R53 and a fifteenth capacitor C15, one end of the fiftieth resistor R50 is connected to the sixth pin of the fourth chip HV1, the other end of the fiftieth resistor R50 and one end of the fifty-first resistor R51 are both connected to the fifth pin of the fourth chip HV1, the other end of the fifty-first resistor R51 is connected to the second pin and the third pin of the fourth chip HV1, one end of the fifty-second resistor R52 is connected to the seventh pin of the fourth chip HV1, the other end of the fifty-second resistor R52 is connected to one end of the fifty-third resistor R53, the other end of the fifty-third resistor R53 and one end of the fifteenth capacitor C15 are connected to the high-voltage isolation module, and the other end of the fifteenth capacitor C15 is connected to the eighth pin of the fourth chip HV1. It should be noted that the high-voltage DC injection unit adjusts the reference input voltage of the high-voltage DC injection unit through the fourth chip HV1, the 50th resistor R50, the 51st resistor R51, the 52nd resistor R52, and the 53rd resistor R53, so that the high-voltage DC injection unit can output a stable high-voltage DC2500V voltage and achieve isolation of high-voltage signals under the action of the high-voltage isolation module, thereby protecting the reliability of the fourth chip HV1 and the peripheral circuits of the fourth chip HV1.

[0041] The acquisition unit is provided with a fifty-third resistor R53, a fifty-fourth resistor R54, a fifty-fifth resistor R55, a fifty-sixth resistor R56, a fifty-seventh resistor R57, a fifty-eighth resistor R58, a fourth relay KA4, a fifth relay KA5, a first acquisition device and a second acquisition device. One end of the fifty-third resistor R53 is connected to the high-voltage motor under test, the other end of the fifty-third resistor R53 is connected to one end of the fourth relay KA4, the other end of the fourth relay KA4 and one end of the fifty-fourth resistor R54 are both connected to one end of the fifty-fifth resistor R55, the other end of the fifty-fourth resistor R54 and one end of the fifty-sixth resistor are both connected to the first acquisition device S1, the other end of the fifty-sixth resistor R56 is grounded, the other end of the fifty-fifth resistor R55 is connected to one end of the fifth relay KA5, the other end of the fifth relay KA5 and one end of the fifty-seventh resistor R57 are both connected to the high-voltage monitoring module, the other end of the fifty-seventh resistor R57 and one end of the fifty-eighth resistor R58 are both connected to the second acquisition device S2, and the other end of the fifty-eighth resistor R58 is grounded. It should be noted that the acquisition unit is connected to any phase of the motor winding under test, and the fifty-third resistor R53 is a 10M resistor, which limits the current and voltage input to the high-voltage motor under test. The current and voltage after the fifty-third resistor R53 limits the current and voltage have little effect on the high-voltage detection module. The high voltage of the high-voltage motor under test is excluded through the fifty-fourth resistor R54, the fifty-fifth resistor R55, the fifty-sixth resistor R56, the fifty-seventh resistor R57, and the fifty-eighth resistor R58. The fourth relay KA4 and the fifth relay KA5 are 15KV withstand voltage relays. The fourth relay KA4 is turned on when measuring the circuit withstand voltage and the high-voltage motor insulation test, and the fifth relay KA5 is turned on when performing the insulation withstand voltage test. When the acquisition unit detects the high-voltage motor shutdown signal and performs an insulation test on the high-voltage motor, at this time, the fourth relay KA4 and the fifth relay KA5 are turned on, the voltage on the line side is collected by the first acquisition device, and the output voltage of the high-voltage injection module is collected by the second acquisition device, and finally the insulation resistance value of the insulated motor is obtained.

[0042] The control module also includes a display unit, a key control unit and a communication unit. The display unit can display real-time data of the insulation detection device, such as voltage, current and insulation resistance value, so that the operator can understand the status of the high-voltage motor in time; the key control unit can perform corresponding operations on the insulation monitoring device, such as starting, stopping and parameter adjustment, etc., to improve the operability of the insulation monitoring equipment; the communication unit can exchange data with other devices or monitoring systems to realize data transmission and sharing of the high-voltage motor under test.

[0043] In the description of this specification, the description with reference to the terms "one embodiment", "further embodiments", "some specific embodiments" or "some examples" etc. means that the specific features, structures or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0044] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A wireless high-voltage motor insulation online detection device, characterized in that: include: A control module, wherein the control module is provided with a first chip; A high-voltage monitoring module, wherein the high-voltage monitoring module is connected to the first chip of the control module, the high-voltage monitoring module is provided with a wireless control unit, a switch monitoring unit, a signal processing unit, a high-voltage direct current injection unit and a collection unit, the wireless control unit is provided with a second chip and a signal sending device, the signal sending device is respectively connected to the second chip and the first chip, the signal sending device is used to wirelessly connect the control module and the high-voltage monitoring module, the second chip is electrically connected to the first chip, the second chip is electrically connected to the first chip of the control module, the switch monitoring unit is electrically connected to the first chip of the control module, the signal processing unit is respectively electrically connected to the control module and the high-voltage direct current injection unit, and the high-voltage direct current injection unit is electrically connected to the collection unit; A high-voltage isolation module is connected to the high-voltage motor under test and the high-voltage monitoring module respectively, wherein the acquisition unit is connected to any one of the high-voltage motors under test through the high-voltage isolation module.

2. The wireless high-voltage motor insulation online detection device according to claim 1 is characterized in that: The wireless control unit is provided with a first resistor, a second resistor, a third resistor, a fourth resistor, a fifth resistor, a sixth resistor, a seventh resistor, an eighth resistor, a ninth resistor, a tenth resistor, an eleventh resistor, a twelfth resistor, a thirteenth resistor, a fourteenth resistor, a first diode and a second diode, one end of the first resistor and the second resistor are both connected to the second pin of the second chip, the other end of the first resistor is grounded, the other end of the second resistor is connected to the eighteenth pin of the first chip, one end of the third resistor and the fourth resistor are both connected to the third pin of the second chip, the other end of the third resistor is grounded, the other end of the fourth resistor is connected to the seventeenth pin of the second chip, one end of the fifth resistor and the sixth resistor are both connected to the fourth pin of the second chip, the other end of the fifth resistor is grounded, the other end of the sixth resistor is connected to the The first chip is connected to the sixteenth pin of the first chip, one end of the seventh resistor and the eighth resistor are both connected to the fifth pin of the second chip, the other end of the seventh resistor is grounded, the other end of the eighth resistor is connected to the fifteenth pin of the first chip, one end of the ninth resistor and the tenth resistor are both connected to the sixth pin of the second chip, the other end of the ninth resistor is grounded, the other end of the tenth resistor is connected to the fourteenth pin of the first chip, one end of the eleventh resistor and the twelfth resistor are both connected to the sixteenth pin of the second chip, the other end of the eleventh resistor is grounded, the other end of the twelfth resistor is connected to the nineteenth pin of the first chip, one end of the thirteenth resistor and the fourteenth resistor are both connected to the fifteenth pin of the second chip, the other end of the thirteenth resistor is grounded, and the other end of the fourteenth resistor is connected to the twentieth pin of the first chip.

3. The wireless high-voltage motor insulation online detection device according to claim 1 is characterized in that: The switch monitoring unit is provided with a first signal access socket, a second signal access socket, a fifteenth resistor, a sixteenth resistor, a seventeenth resistor, an eighteenth resistor, a nineteenth resistor, a twentieth resistor, a first capacitor, a second capacitor, a third capacitor, a fourth capacitor, a fifth capacitor, a sixth capacitor, a first optical coupler relay, a second optical coupler relay and a third optical coupler relay, one end of the fifteenth resistor is connected to the first pin of the first signal access socket, the other end of the fifteenth resistor and one end of the first capacitor are both connected to the first end of the first optical coupler relay, the other end of the first capacitor is connected to the second end of the first optical coupler relay, the third end of the first optical coupler relay is respectively connected to the sixteenth resistor and one end of the second capacitor, the other end of the sixteenth resistor is connected to the forty-sixth pin of the first chip, one end of the second capacitor is also connected to the third pin of the first signal access socket, the other end of the second capacitor is connected to the forty-eighth pin of the first chip, one end of the seventeenth resistor is connected to the second pin of the first signal access socket, and the The other end and one end of the third capacitor are both connected to the first end of the second optical coupler relay, the other end of the third capacitor is connected to the second end of the second optical coupler relay, one end of the eighteenth resistor and one end of the fourth capacitor are both connected to the third end of the second optical coupler relay, the other end of the eighteenth resistor is connected to the forty-sixth pin of the first chip, one end of the fourth capacitor is also connected to the thirty-fifth pin of the first chip, the other end of the fourth capacitor is connected to the forty-seventh pin of the first chip, one end of the nineteenth resistor is connected to one end of the first signal access socket, one end of the fifth capacitor is connected to the first end of the third optical coupler relay, the other end of the nineteenth resistor and the other end of the fifth capacitor are both connected to the second end of the third optical coupler relay, the third end of the third optical coupler relay is respectively connected to the twenty resistors and one end of the sixth capacitor, one end of the sixth capacitor is also connected to the sixteenth pin of the second signal access socket, and the other end of the sixth capacitor and the fourth end of the third optical coupler relay are both grounded.

4. The wireless high-voltage motor insulation online detection device according to claim 1 is characterized in that: The signal processing unit includes a twenty-first resistor, a twenty-second resistor, a twenty-third resistor, a twenty-fourth resistor, a twenty-fifth resistor, a twenty-sixth resistor, a twenty-seventh resistor, a twenty-eighth resistor, a twenty-ninth resistor, a thirtieth resistor, a thirty-first resistor, a thirty-second resistor, a thirty-third resistor, a thirty-fourth resistor, a thirty-fifth resistor, a thirty-sixth resistor, a thirty-seventh resistor, a seventh capacitor, an eighth capacitor, a ninth capacitor, a tenth capacitor, a first operational amplifier, a second operational amplifier, a third operational amplifier, a fourth operational amplifier and a third chip, one end of the twenty-first resistor is connected to the high-voltage isolation module, the other end of the twenty-first resistor is connected to the first end of the first operational amplifier, and the first operational amplifier The second end and the third end of the amplifier are connected to one end of the twenty-second resistor, the other end of the twenty-second resistor, one end of the twenty-third resistor, and one end of the seventh capacitor are all connected to one end of the twenty-fourth resistor, the other end of the twenty-third resistor and the other end of the seventh capacitor are both connected to the twelfth pin of the third chip, the other end of the twenty-fourth resistor and one end of the twenty-fifth resistor are both connected to the first end of the second operational amplifier, the second end of the second operational amplifier is connected to the twelfth pin of the third chip, the other end of the twenty-fifth resistor and the third end of the second operational amplifier are both connected to one end of the twenty-sixth resistor, the other end of the twenty-sixth resistor, the second One end of the seventeenth resistor and one end of the eighth capacitor are connected to the fifth pin of the third chip, the other end of the twenty-seventh resistor and the other end of the eighth capacitor are connected to the twelfth pin of the third chip, one end of the twenty-eighth resistor is connected to the high-voltage isolation module, the other end of the twenty-eighth resistor is connected to the first end of the third operational amplifier, one end of the twenty-ninth resistor is connected to the ninth pin of the third chip, the other end of the twenty-ninth resistor is connected to the thirtieth resistor, the other end of the thirtieth resistor, the second end of the third operational amplifier and the third end of the third operational amplifier are all connected to one end of the thirty-first resistor, and the other end of the thirty-first resistor is connected to the ninth pin of the third chip. One end of the thirty-second resistor and one end of the ninth capacitor are connected to one end of the thirty-third resistor, the other end of the thirty-second resistor and the other end of the ninth capacitor are connected to the ninth pin of the third chip, the other end of the thirty-third resistor and one end of the thirty-fourth resistor are connected to the first end of the fourth operational amplifier, the second end of the fourth operational amplifier is connected to the ninth pin of the third chip, the other end of the thirty-fourth resistor and the third end of the fourth operational amplifier are connected to one end of the thirty-fifth resistor, the other end of the thirty-fifth resistor, one end of the thirty-sixth resistor and one end of the tenth capacitor are connected to the seventh pin of the third chip,The other end of the thirty-sixth resistor and the other end of the tenth capacitor are both connected to the ninth pin of the third chip.

5. The wireless high-voltage motor insulation online detection device according to claim 1 is characterized in that: The high-voltage isolation module is provided with a thirty-seventh resistor, a thirty-eighth resistor, a thirty-ninth resistor, a forty-first resistor, a forty-second resistor, a forty-third resistor, a forty-fourth resistor, a forty-fifth resistor, a forty-sixth resistor, a forty-seventh resistor, a forty-eighth resistor, a forty-ninth resistor, an eleventh capacitor, a twelfth capacitor, a thirteenth capacitor and a fourteenth capacitor, one end of the thirty-seventh resistor is connected to the high-voltage direct current injection unit, the other end of the thirty-seventh resistor is connected to one end of the thirty-eighth resistor, the other end of the thirty-eighth resistor, one end of the thirty-ninth resistor, and one end of the eleventh capacitor are all connected to one end of the fortieth resistor, the other end of the fortieth resistor and one end of the twelfth capacitor are all connected to the signal processing unit, and the other end of the thirty-nineth resistor, the other end of the eleventh capacitor and the other end of the twelfth capacitor are all connected to the first The forty-seventh pin of the chip is connected, the forty-first resistor is connected to one end of the forty-second resistor, the other end of the forty-second resistor is connected to one end of the forty-third resistor, the other end of the forty-third resistor is connected to one end of the forty-fourth resistor, the other end of the forty-fourth resistor is connected to one end of the forty-fifth resistor, the other end of the forty-fifth resistor is connected to one end of the forty-sixth resistor, the other end of the forty-sixth resistor is connected to one end of the forty-seventh resistor, the other end of the forty-seventh resistor is respectively connected to the forty-eighth resistor, the forty-ninth resistor and one end of the thirteenth capacitor, the other end of the forty-eighth resistor, the other end of the thirteenth capacitor and one end of the fourteenth capacitor are all connected to the forty-seventh pin of the first chip, and the other ends of the forty-ninth resistor and the fourteenth capacitor are connected to the signal processing unit.

6. The wireless high-voltage motor insulation online detection device according to claim 1 is characterized in that: The high-voltage direct current injection unit is provided with a fourth chip, a fiftieth resistor, a fifty-first resistor, a fifty-second resistor, a fifty-third resistor and a fifteenth capacitor, one end of the fiftieth resistor is connected to the sixth pin of the fourth chip, the other end of the fiftieth resistor and one end of the fifty-first resistor are both connected to the fifth pin of the fourth chip, the other end of the fifty-first resistor is connected to the second pin and the third pin of the fourth chip, one end of the fifty-second resistor is connected to the seventh pin of the fourth chip, the other end of the fifty-second resistor is connected to one end of the fifty-third resistor, the other end of the fifty-third resistor and one end of the fifteenth capacitor are connected to the high-voltage isolation module, and the other end of the fifteenth capacitor is connected to the eighth pin of the fourth chip.

7. The wireless high-voltage motor insulation online detection device according to claim 1 is characterized in that: The acquisition unit is provided with a fifty-third resistor, a fifty-fourth resistor, a fifty-fifth resistor, a fifty-sixth resistor, a fifty-seventh resistor, a fifty-eighth resistor, a fourth relay, a fifth relay, a first acquisition device and a second acquisition device. One end of the fifty-third resistor is connected to the high-voltage motor under test, the other end of the fifty-third resistor is connected to one end of the fourth relay, the other end of the fourth relay and one end of the fifty-fourth resistor are both connected to one end of the fifty-fifth resistor, the other end of the fifty-fourth resistor and one end of the fifty-sixth resistor are both connected to the first acquisition device, the other end of the fifty-sixth resistor is grounded, the other end of the fifty-fifth resistor is connected to one end of the fifth relay, the other end of the fifth relay and one end of the fifty-seventh resistor are both connected to the high-voltage monitoring module, the other end of the fifty-seventh resistor and one end of the fifty-eighth resistor are both connected to the second acquisition device, and the other end of the fifty-eighth resistor is grounded.

8. The wireless high-voltage motor insulation online detection device according to claim 1 is characterized in that: The control module also includes a display unit, a key control unit and a communication unit.

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