Contactor detection equipment and detection method

Abstract

The invention discloses a contactor detection device and method, and belongs to the technical field of electrical engineering, and the device comprises a vibration table which is used for generating vibration; the fixing assembly is used for fixing the contactor on the vibration table; the current control unit is used for controlling the current of the contactor main loop; the vibration control unit is used for controlling the vibration of the vibration table; the voltage control unit is used for controlling the control loop voltage of the contactor; according to the contactor detection equipment and the detection method, the contactor can be detected while the contactor is vibrated, when the contactor is not used, the performance of the contactor is detected by simulating the transportation and use scenes of the contactor, the contactor is effectively monitored, and the quality and the safety of the contactor are ensured.

Description

Technical Field

[0001] This invention belongs to the field of electrical engineering technology, and specifically relates to a contactor testing device and testing method. Background Technology

[0002] In the contactor industry, vibrations occur during transportation and use, leading to a decrease in contactor reliability. To verify the reliability of the contactor itself, simulated vibration tests are necessary. During the contactor manufacturing process, certain parameter checks are performed to ensure reliability. Similarly, vibrations occur during user operation. Therefore, to simulate usage scenarios, vibration and other functional tests must be performed to ensure the contactor's reliability during use.

[0003] Existing testing equipment only performs vibration testing or other functional testing, and cannot simultaneously test the function of the contactor itself while it is vibrating. Therefore, it is necessary to develop a new contactor testing equipment and testing method. Summary of the Invention

[0004] The purpose of this invention is to provide a contactor testing device and testing method to solve the problem that other functional tests cannot be performed when the contactor is vibrating.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a contactor testing device, comprising: A vibration table is used to generate vibration. A fixing component for securing the contactor to the vibration table; The current control unit is used to control the current in the main circuit of the contactor; Vibration control unit, used to control the vibration of the vibration table; The voltage control unit is used to control the control circuit voltage of the contactor.

[0006] Preferably, the current control unit and the voltage control unit are connected to the vibration table via output control lines, and the vibration table is connected to the contactor via voltage output lines and current output lines.

[0007] Preferably, the contactor testing device further includes: The control panel is connected to the vibration control unit, voltage control unit, and current control unit. The display unit is connected to the control panel; The console is used to assemble the control panel and display unit.

[0008] Preferably, the display unit includes: The display screen is used to show the test results; Indicator lights are used to display fault alarms.

[0009] Preferably, the fixing component includes: Four threaded rods mounted on the vibration table, four fixing plates sleeved on the four threaded rods, and a pressure plate that abuts against the contactor; The pressure plate is fixed to two symmetrical fixed plates by pressure plate bolts and pressure plate nuts.

[0010] Preferably, each fixing plate is fixed to the threaded rod by two threaded rod nuts.

[0011] Preferably, the control panel is connected to a temperature sensing line, which is mounted on a contactor.

[0012] Preferably, the control panel is connected to a voltage drop tester, the voltage drop tester is connected to a contact voltage drop sensing wire, and the contact voltage drop sensing wire is mounted on the contactor.

[0013] The present invention further provides a detection method for a contactor detection device, comprising: Set the vibration parameters, output voltage, and output current on the control panel; The control panel transmits vibration, voltage, and current parameters to the display unit and the vibration table; The vibration table starts vibrating, the detection circuit is fixed on the contactor being tested, the detection circuit transmits the detected temperature parameter to the control panel, the detection circuit transmits the detected voltage drop parameter to the control panel via the voltage drop detector, the control panel transmits it to the display unit, and the display unit confirms that the control parameters and detection parameters meet the standards.

[0014] Preferably, the vibration parameters include: amplitude, frequency, and time.

[0015] The technical effects and advantages of this invention are as follows: This contactor testing equipment and method can test the contactor while vibrating it. When the contactor is not in use, it can simulate the transportation and use scenarios of the contactor to test its performance, effectively monitor the contactor, and ensure the quality and safety of the contactor. Attached Figure Description

[0016] Figure 1 This is a front view of the device of the present invention; Figure 2 This is a left view of the device of the present invention; Figure 3 For the present invention Figure 2 A cross-sectional view of the AA plane; Figure 4 This is a perspective view of the device of the present invention.

[0017] In the diagram: 101, Control panel; 102, Display unit; 102-1, Display screen; 102-2, Indicator light; 103, Control console; 104, Output control circuit; 105, Detection circuit; 105-1, Temperature sensor wire; 105-2, Contact voltage drop sensor wire; 106, Vibration table; 107, Control circuit; 108, Vibration control unit; 109, Voltage control unit; 110, Current control unit; 111, Fixing plate; 112, Threaded rod; 113, Threaded rod nut; 114, Pressure plate bolt; 115, Pressure plate; 116, Pressure plate nut; 117, Voltage output circuit; 118, Current output circuit; 119, Voltage drop detector. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] This invention provides, for example Figure 1 , Figure 2 , Figure 3 The contactor testing device shown includes: Console 103; Control panel 101 is embedded in console 103; The detection line 105 is connected to the control panel 101; Control line 107 connected to the control panel 101; Display unit 102 connected to the control circuit 107; A vibration control unit 108 connected to the control circuit 107; A voltage control unit 109 connected to the control circuit 107; A current control unit 110 connected to the control circuit 107; The detection circuit 105 includes a temperature sensing line 105-1 and a contact voltage drop sensing line 105-2; The control panel 101 is connected to the display unit 102, the vibration control unit 108, the voltage control unit 109, and the current control unit 110 via control circuit 107. The output control line 104 is connected to the vibration control unit 108; Output control line 104 connected to the voltage control unit 109; Output control line 104 connected to the current control unit 110; A vibration table 106 connected to the output control line 104.

[0020] In this embodiment, the control panel 101 and the display unit 102 are both embedded on the surface of the console 103. The control panel 101 and the display unit 102 are connected inside the console 103 by a control line 107. The control panel 101 is connected to the voltage drop detector 119, and the voltage drop detector 119 is connected to the detection line 105. The control panel 101 is also connected to the vibration control unit 108, the voltage control unit 109, and the current control unit 110 by the control line 107. The vibration control unit 108, the voltage control unit 109, and the current control unit 110 are connected to the vibration table 106 by the output control line 104.

[0021] Vibration table 106; The vibration table 106 is connected to the voltage output line 117; The vibration table 106 is connected to the current output line 118; The vibration table 106 is connected to the threaded rod 112; The threaded rod 112 is connected to the fixed plate 111; The fixing plate 111 is connected to the threaded rod nut 113; The console 103 is connected to the output control line 104; The control console 103 is connected to the temperature sensing line 105-1; The control console 103 is connected to the contact voltage drop sensing line 105-2; like Figure 4 As shown, the voltage output line 117, current output line 118, four threaded rods 112, four fixing plates 111 sleeved on the threaded rods 112, and pressure plate 115 that abuts against the contactor are assembled on the vibration table 106. The pressure plate 115 is fixed to two symmetrical fixing plates 111 by pressure plate bolts 114 and pressure plate nuts 116; Each fixed plate 111 is fixed to the threaded rod 112 by two threaded rod nuts 113; the threaded rod 112 is fixedly connected to the vibration table 106, the fixed plate 111 is fixed to the threaded rod 112, the temperature sensing wire 105-1 is fixed to the vibration table 106, the contact pressure drop sensing wire 105-2 is fixed to the vibration table 106, and the vibration table 106 is connected to the output control line 104.

[0022] The present invention also provides a detection method for a contactor detection device, comprising the following steps: Install the contactor to be tested on the vibration table 106, fix the contactor with the fixing plate 111 and the threaded rod 112, fix the voltage output line 117 and the current output line 118 on the contactor to be tested, and fix the temperature sensing wire 105-1 and the contact voltage drop sensing wire 105-2 on the contactor. Vibration parameters, voltage parameters, and current parameters are set on the control panel 101 and transmitted to the vibration control unit 108, voltage control unit 109, current control unit 110, and display unit 102 via the control line 107. The vibration control unit 108, voltage control unit 109, and current control unit 110 then transmit the data to the vibration table 106 via the output control line 104. The vibration table 106 starts vibrating. The voltage control unit 109 energizes the contactor control circuit through the voltage output line 117 on the vibration table 106 via the output control line 104. The current control unit 110 energizes the main circuit through the voltage output line 117 on the vibration table 106 via the output control line 104. The control panel 101 detects the temperature of the contactor through the temperature sensing line 105-1. The K-type thermocouple is fixed to the main circuit of the contactor by nuts or glued with high-temperature double-sided adhesive. The control panel 101 detects the voltage drop of the contactor through the voltage drop detector 119 and the contact voltage drop sensing line 105-2, and feeds the parameters back to the display screen 102-1 for display. If the parameters are normal, the indicator light 102-2 is always on. If the parameters are abnormal, the indicator light 102-2 is off. The control panel 101 is a Siemens S7-1200 PLC; temperature sensor wire 105-1 is a K-type thermocouple; contact voltage drop sensor wire 105-2 is a high-precision differential voltage acquisition module (NI 9215); vibration control unit 108 is a B&K 2718 power amplifier; voltage control unit 109 is a Keysight E36300 series programmable DC power supply; current control unit 110 is an AMETEK ELGAR series high-current amplifier.

[0023] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A contactor testing device, characterized in that: include: A vibration table (106) is used to generate vibration; A fixing component for fixing the contactor to the vibration table (106). The current control unit (110) is used to control the current in the main circuit of the contactor; Vibration control unit (108) is used to control the vibration of the vibration table (106); Voltage control unit (109) is used to control the control circuit voltage of the contactor.

2. The contactor testing device according to claim 1, characterized in that: The current control unit (110) and voltage control unit (109) are connected to the vibration table (106) via the output control line (104), and the vibration table (106) is connected to the contactor via the voltage output line (117) and the current output line (118).

3. The contactor testing device according to claim 1, characterized in that: The contactor testing equipment also includes: The control panel (101) is connected to the vibration control unit (108), voltage control unit (109), and current control unit (110); The display unit (102) is connected to the control panel (101); The console (103) is used to assemble the control panel (101) and the display unit (102).

4. The contactor testing device according to claim 3, characterized in that: The display unit (102) includes: The display screen (102-1) is used to display the test results; Indicator light (102-2) is used to display fault alarms.

5. The contactor testing device according to claim 1, characterized in that: The fixing component includes: Four threaded rods (112) mounted on the vibration table (106), four fixing plates (111) sleeved on the four threaded rods (112), and a pressure plate (115) that abuts against the contactor. The pressure plate (115) is fixed to two symmetrical fixing plates (111) by pressure plate bolts (114) and pressure plate nuts (116).

6. The contactor testing device according to claim 5, characterized in that: Each fixed plate (111) is secured to the threaded rod (112) by two threaded rod nuts (113).

7. The contactor testing device according to claim 1, characterized in that: The control panel (101) is connected to the temperature sensing line (105-1), which is mounted on the contactor.

8. The contactor testing device according to claim 1, characterized in that: The control panel (101) is connected to the voltage drop tester (119), the voltage drop tester (119) is connected to the contact voltage drop sensing wire (105-2), and the contact voltage drop sensing wire (105-2) is installed on the contactor.

9. A detection method for a contactor testing device according to claims 1-8, characterized in that: include: Set the vibration parameters, output voltage, and output current on the control panel (101); The control panel (101) transmits vibration, voltage and current parameters to the display unit (102) and the vibration table (106). The vibration table (106) starts to vibrate. The detection line (105) is fixed on the contactor being tested. The detection line (105) transmits the detected temperature parameters to the control panel (101). The detection line (105) transmits the detected voltage drop parameters to the control panel (101) via the voltage drop detector (119). The control panel (101) transmits the parameters to the display unit (102). The control parameters and detection parameters are confirmed to meet the standards on the display unit (102).

10. The detection method of a contactor detection device according to claim 9, characterized in that: The vibration parameters include: amplitude, frequency, and time.

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