Withstand voltage insulation test device for electric connector

Abstract

The utility model discloses a withstand voltage insulation testing device for an electric connector, which comprises a base, and an electric connector fixing mechanism, a PCB (printed circuit board) mechanism, a wire changing seat and a control electrical box are transversely and sequentially arranged on the base. An electric connector is clamped and fixed on the electric connector fixing mechanism, and a jack of the electric connector faces the PCB mechanism; the electric connector fixing mechanism is connected with the transverse push-pull device; the PCB mechanism is opposite to and adjacent to the electric connector fixing mechanism, and a socket detection end of a PCB on the PCB mechanism faces a socket; one end, far away from the socket detection end, of the PCB is a test line connection end connected with a test line; the transverse push-pull device drives the electric connector fixing mechanism to be close to / far away from the PCB mechanism, so that the socket is inserted into or separated from the socket detection end; the wire changing seat is detachably connected with the test wire; the control electrical box is electrically connected with the electric connector fixing mechanism, the wire changing seat and the transverse push-pull device. The device has the advantages of high detection efficiency and high reliability.

Description

Technical Field

[0001] This utility model relates to the field of electrical connector testing technology, specifically to an electrical connector withstand voltage insulation testing device. Background Technology

[0002] There are many types of electrical connectors available, some of which have a large number of pins. For example... Figure 1 As shown, the electrical connector 1 includes a rectangular housing 11 and pins 13; the pins 13 include a first pin 131 and a second pin 132. One end of the first pin 131 and the second pin 132 are disposed on the upper and lower sides inside the housing 11 to form the socket 12 of the electrical connector 1, and the other end is disposed outside the housing 11.

[0003] When conducting withstand voltage insulation tests on electrical connectors, it is common to manually test the connection between the two pins of the product using two test probes of a tester. However, for electrical connectors with dozens or even hundreds of pins, manual testing cannot quickly and accurately complete the electrical performance evaluation. Furthermore, testing each pin one by one is difficult for electrical connectors with a high pin density and small hole spacing, which may result in missed detections, misjudgments, and poor reliability. Summary of the Invention

[0004] The purpose of this invention is to provide a high-efficiency, reliable electrical connector withstand voltage insulation testing device that avoids missed detections and misjudgments, addressing the shortcomings of existing technologies.

[0005] The technical objective of this utility model is achieved through the following technical solution:

[0006] An electrical connector withstand voltage insulation testing device includes a base, on which an electrical connector fixing mechanism, a PCB board mechanism, a cable changer, and a control electrical box are arranged. The electrical connector fixing mechanism clamps and fixes an electrical connector, with the connector's socket facing the PCB board mechanism. The electrical connector fixing mechanism is connected to a lateral push-pull device. The PCB board mechanism is opposite to and adjacent to the electrical connector fixing mechanism, with the socket detection end of the PCB board facing the socket. The end away from the socket detection end is a test lead connection end connected to a test lead. The lateral push-pull device moves the electrical connector fixing mechanism closer to / away from the PCB board mechanism, causing the socket to engage or disengage from the socket detection end. The cable changer is detachably connected to the test lead. The control electrical box is electrically connected to the electrical connector fixing mechanism, the cable changer, and the lateral push-pull device.

[0007] Preferably, the electrical connector fixing mechanism includes an electrical connector mounting base disposed on the base plate and a clamping mechanism for clamping and fixing the electrical connector; the upper end of the electrical connector mounting base is provided with a placement groove for placing the electrical connector, the placement groove corresponding to the housing and pin of the electrical connector, respectively, is a housing groove and a pin groove; the housing groove is disposed on the upper end of the side of the electrical connector mounting base facing the PCB board mechanism; the clamping mechanism includes a clamping cylinder, the clamping cylinder is disposed on the upper side of the electrical connector mounting base through a bracket disposed on the base plate; the lower end of the output shaft of the clamping cylinder is provided with a clamping plate that cooperates with the upper side of the housing; the clamping cylinder is electrically connected to the control electrical box; the base plate is fixedly connected to the transverse push-pull device, and there is a clearance fit between the lower side of the base plate and the upper side of the base.

[0008] Preferably, the electrical connector mounting base is further provided with an electrical connector positioning plate, which is detachably and fixedly connected to the base plate; the electrical connector positioning plate is provided with a first positioning pin hole; the electrical connector mounting base is provided with a second positioning pin hole that matches the first positioning pin hole; the electrical connector positioning plate and the electrical connector mounting base are positioned by the first positioning pin hole and the second positioning pin hole; the electrical connector mounting base and the electrical connector positioning plate are bolted together.

[0009] Preferably, the electrical connector mounting base extends toward the PCB board mechanism at one end near the PCB board.

[0010] Preferably, a flexible pressure block is also connected below the pressure plate.

[0011] Preferably, the PCB board mechanism further includes a PCB board mounting base and a pressure plate; the upper side of the PCB board mounting base near the electrical connector fixing mechanism is provided with a PCB placement slot; the width and height of the PCB placement slot are equal to the width and height of the test line connection end of the PCB board; the PCB board and the PCB placement slot are detachably connected; a test line slot is provided in the middle of the upper side of the PCB board mounting base away from the electrical connector fixing mechanism; the opening width of the test line slot is smaller than the length of the test line connection end of the PCB board; the pressure plate is detachably connected to the PCB board mounting base.

[0012] Preferably, the PCB board mounting base is further provided with a PCB board mounting base positioning plate, which is detachably and fixedly connected to the base; the PCB board mounting base positioning plate is provided with a third positioning pin hole, and the PCB board mounting base and the pressure plate are respectively provided with a fourth positioning pin hole and a fifth positioning pin hole that match the third positioning pin hole; the PCB board mounting base positioning plate is positioned with the PCB board mounting base and the pressure plate through the third positioning pin hole, the fourth positioning pin hole and the fifth positioning pin hole, and the PCB board mounting base positioning plate is detachably connected with the PCB board mounting base and the pressure plate.

[0013] Preferably, the lateral push-pull device is arranged laterally on the lower side of the base; the lower side of the base plate is provided with a support leg, the height of which is greater than the height of the lateral push-pull device; the lower side of the base corresponding to the electrical connector fixing mechanism is provided with a through hole opened laterally; the upper end of the connecting section of the lateral push-pull device passes through the through hole and connects to the base plate of the electrical connector fixing mechanism.

[0014] Preferably, the transverse push-pull device further includes a push-pull cylinder and a slide plate connected to the output shaft; the longitudinal sides of the through hole under the base are provided with slide rails, and the slide plate is provided with a slide groove that cooperates with the slide rails; the push-pull cylinder is arranged transversely on one side of the middle of the through hole under the base; the lower end of the connecting section is connected to the upper end of the slide plate, and its upper end is connected to the lower end of the base plate.

[0015] Preferably, the lower side of the base is provided with limiting structures on both sides of the through hole to restrict excessive movement of the slide plate; the limiting structure includes a limiting seat and a fixed limiting part and an adjustable elastic limiting part disposed on the limiting seat.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. This utility model uses a lateral push-pull device to move the electrical connector fixing mechanism closer to / away from the PCB board, causing the electrical connector to move closer to / away from the PCB board. This allows the PCB board's connector detection end to insert into or separate from the connector's connector, controlling the electrical box to automatically control the connection and disconnection of the terminal block, thus completing rapid testing. This technology offers advantages such as high testing efficiency, low testing difficulty, prevention of missed detections, avoidance of false positives, and high reliability, especially for electrical connectors with a large number of pins.

[0018] 2. The electrical connector mounting base of this utility model is further provided with an electrical connector positioning plate. By setting the electrical connector positioning plate, the positioning of the electrical connector mounting base can be completed quickly, improving work efficiency.

[0019] 3. The PCB board mounting base of this utility model is further provided with a PCB board mounting base positioning plate. By setting the PCB board mounting base positioning plate, the positioning of the PCB board mounting base can be completed quickly, thereby improving work efficiency. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the electrical connector.

[0021] Figure 2 This is a schematic diagram of the structure of this utility model;

[0022] Figure 3 yes Figure 2A bottom view;

[0023] Figure 4 yes Figure 2 A cross-sectional view of the electrical connector fixing mechanism and the PCB board mechanism;

[0024] Figure 5 yes Figure 2 A schematic diagram of the electrical connector fixing mechanism in the diagram;

[0025] Figure 6 yes Figure 5 Schematic diagram of the connector mounting base and connector positioning plate of China Electronics Technology Group Corporation (CETC).

[0026] Figure 7 yes Figure 2 Schematic diagram of the PCB board structure;

[0027] Figure 8 yes Figure 3 A schematic diagram of the transverse push-pull device and slide rail;

[0028] Figure 9 yes Figure 8 Schematic diagram of the middle slide groove and slide rail;

[0029] Reference numerals: 1—Electrical connector; 11—Housing; 12—Socket; 13—PIN; 131—First PIN; 132—Second PIN;

[0030] 2—Base; 21—Support leg; 22—Through hole; 23—Slide rail;

[0031] 3—Electrical connector fixing mechanism; 31—Base plate; 32—Electrical connector mounting base; 321—Housing groove; 322—PIN groove; 323—Second positioning pin hole; 33—Clamping mechanism; 331—Clamping cylinder; 332—Clamping plate; 333—Flexible clamping block; 34—Bracket; 35—Electrical connector positioning plate; 351—First positioning pin hole;

[0032] 4—PCB board mechanism; 41—PCB board mounting base; 411—PCB placement slot; 412—Test wire slot; 413—Fourth positioning pin hole; 42—PCB board; 421—Socket detection end; 422—Test wire connection end; 423—Test wire; 4231—Test wire plug; 43—Pressure plate; 431—Fifth positioning pin hole; 44—PCB board mounting base positioning plate; 441—Third positioning pin hole;

[0033] 5—Cable changer; 6—Control electrical box;

[0034] 7—Horizontal push-pull device; 71—Push-pull cylinder; 711—Slide plate connecting block; 72—Slide plate; 721—Slide groove; 73—Connecting section;

[0035] 8—Limiting structure; 81—Limiting seat; 82—Fixed limiting part; 83—Elastic limiting part. Detailed Implementation

[0036] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0037] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0038] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0039] like Figure 1 — Figure 9As shown, an electrical connector withstand voltage insulation testing device includes a base 2, on which an electrical connector fixing mechanism 3, a PCB board mechanism 4, a cable changing socket 5, and a control electrical box 6 are arranged. The electrical connector fixing mechanism 3 clamps and fixes an electrical connector 1, with the connector 1's socket 12 facing the PCB board mechanism 4. The electrical connector fixing mechanism 3 is connected to a lateral push-pull device 7. The PCB board mechanism 4 is opposite to and adjacent to the electrical connector fixing mechanism 3, with the socket detection end 421 of the PCB board 42 on the PCB board mechanism 4 facing the socket 12. One end of the PCB board 42 away from the socket detection end 421 is a test wire connection end 422 connected to a test wire 423. The lateral push-pull device 7 moves the electrical connector fixing mechanism 3 closer to / away from the PCB board mechanism 4, causing the socket 12 to engage or disengage from the socket detection end 421. The cable changing socket 5 is detachably connected to the test wire 423. The control electrical box 6 is electrically connected to the electrical connector fixing mechanism 3, the cable changing socket 5, and the lateral push-pull device 7. In practical use, the PCB board 42 used for testing has test solder points that match the number of pins 13 of the electrical connector 1 to be tested. Test lines 423 are soldered onto each test solder point on the PCB board 42; these test lines 423 are generally power lines. Then, the electrical connector 1 and PCB board 42 are fixed to the electrical connector fixing mechanism 3 and the PCB board mechanism 4 respectively, so that the socket 12 of the electrical connector 1 corresponds to the socket detection end 421 of the PCB board 42; the size of the socket detection end 421 matches the size of the socket 12. The lateral push-pull device 7 moves the electrical connector fixing mechanism 3 closer to / away from the PCB board mechanism 4, causing the electrical connector 1 to move closer to / away from the PCB board 42, so that the socket detection end 421 is inserted into or separated from the socket 12. The control box 6 automatically controls the on / off state of the terminal block 5, thereby completing the rapid testing. This technical measure has the advantages of high detection efficiency, low testing difficulty, avoiding missed detections, avoiding misjudgments, and high reliability when targeting electrical connectors 1 with a large number of pins 13.

[0040] like Figure 2 , Figure 3 As shown, the base 2 is a square plate structure. From right to left, the base 2 is arranged horizontally with an electrical connector fixing mechanism 3, a PCB board mechanism 4, a cable changing base 5, and a control electrical box 6.

[0041] like Figure 2 , Figure 4 , Figure 5 , Figure 6As shown, the electrical connector fixing mechanism 3 includes an electrical connector mounting base 32 disposed on the base plate 31 and a clamping mechanism 33 for clamping and fixing the electrical connector 1; the upper end of the electrical connector mounting base 32 is provided with a placement groove for placing the electrical connector 1, and the placement groove corresponds to the housing 11 and PIN pin 13 of the electrical connector 1, respectively, housing groove 321 and PIN pin groove 322; the housing groove 321 is disposed on the upper end of the side of the electrical connector mounting base 32 facing the PCB board mechanism 4; the clamping mechanism 33 includes a clamping cylinder 331, which is spaced on the upper side of the electrical connector mounting base 32 by a bracket 34 disposed on the base plate 31; the lower end of the output shaft of the clamping cylinder 331 is provided with a clamping plate 332 that cooperates with the upper side of the housing 11; the clamping cylinder 331 is electrically connected to the control electrical box 6; the base plate 31 is fixedly connected to the transverse push-pull device 7, and the lower side of the base plate 31 is clearance-fitted with the upper side of the base 2. In actual use, a flexible pressure block 333 is also connected below the pressure plate 332. The flexible pressure block 333 can be made of polyurethane.

[0042] In practical implementation, after the base plate 31 is fixedly connected to the transverse push-pull device 7, the transverse push-pull device 7 can move the base plate 31 closer to or away from the PCB board mechanism 4. The overall width and length of the electrical connector mounting base 32 are greater than the length and width of the electrical connector 1. The housing groove 321 is located at the upper end of the side of the electrical connector mounting base 32 facing the PCB board mechanism 4. The PIN groove 322 is located close to the housing groove 321. On the side of the PIN groove 322 away from the housing groove 321, there is a relief groove with a depth greater than the depth of the housing groove 321. The overall outline of the housing groove 321 is greater than the outer outline of the housing 11. There is a clearance fit between the housing 11 and the housing groove 321. The length, width, and height of the PIN groove 322 are greater than the length, width, and height of the PIN 13 exposed outside the housing 11. When the electrical connector 1 is placed on the placement groove, the housing 11 is pressed by the clamping mechanism 33, thereby fixing the electrical connector 1 on the electrical connector mounting base 32. The length of the base plate 31 is greater than the length of the electrical connector mounting base 32. The bracket 34 is n-shaped, and the height of the bracket 34 is greater than the height of the electrical connector mounting base 32. The bracket 34 is arranged longitudinally along the base 2, and the two ends of the lower end of the bracket 34 are detachably connected to the base plate 31. When the clamping cylinder 331 is installed on the bracket 34, the clamping cylinder 331 is spaced apart on the upper side of the electrical connector mounting base 32. The lower end of the output shaft of the clamping cylinder 331 is provided with a clamping plate 332 that cooperates with the upper side of the housing 11. The clamping plate 332 moves up and down under the drive of the output shaft of the clamping cylinder 331, thereby pressing against or releasing the housing 11. The clamping cylinder 331 of the clamping mechanism 33 is electrically connected to the control electrical box 6, thereby controlling the press mechanism through the control electrical box 6.

[0043] like Figure 4 , Figure 5As shown, the electrical connector mounting base 32 extends towards the PCB board mechanism 4 from the end near the PCB board 42. In actual use, it is necessary to consider replacing different electrical connectors 1 and PCB boards 42. Therefore, the adjacent distance between the electrical connector fixing mechanism 3 and the PCB board mechanism 4 needs to be maintained at a certain width. The structure of the electrical connector mounting base 32 extending towards the PCB board mechanism 4 from the end near the PCB board 42 can be moved away from the PCB board mechanism 4 or different electrical connector mounting bases 32 can be replaced as needed, thereby increasing the adjacent distance between the electrical connector fixing mechanism 3 and the PCB board mechanism 4.

[0044] like Figure 4 , Figure 5 , Figure 6 As shown, an electrical connector positioning plate 35 is also provided under the electrical connector mounting base 32. The electrical connector positioning plate 35 is detachably and fixedly connected to the base plate 31. The electrical connector positioning plate 35 is provided with first positioning pin holes 351 at lateral intervals along the base 2. The electrical connector mounting base 32 is provided with second positioning pin holes 323 that match the first positioning pin holes 351. The electrical connector positioning plate 35 and the electrical connector mounting base 32 are positioned by the first positioning pin holes 351 and the second positioning pin holes 323. The electrical connector positioning plate 35 is provided with a first screw hole, and the electrical connector mounting base 32 is provided with a second screw hole that matches the first screw hole. Specifically, the electrical connector positioning plate 35 is a plate-shaped structure with a width and length greater than or equal to the width and length of the electrical connector mounting base 32. It has one or more sets of first positioning pin holes 351 spaced laterally along the base 2, each set consisting of two first positioning pin holes 351 symmetrically arranged longitudinally. Correspondingly, the electrical connector mounting base 32 has one or more sets of second positioning pin holes 323 that match the first positioning pin holes 351. First connecting screw holes are also provided on both sides of the second positioning pin holes 323 on the electrical connector mounting base 32, and the electrical connector mounting base 32 and the electrical connector positioning plate 35 are bolted together. Since the size of the electrical connector 1 is not fixed, different electrical connector mounting bases 32 need to be replaced when changing different electrical connectors 1. By setting the electrical connector positioning plate 35, positioning can be completed quickly, improving work efficiency.

[0045] like Figure 2 , Figure 4 , Figure 7As shown, the PCB board mechanism 4 also includes a PCB board mounting base 41 and a pressure plate 43; the upper side of the PCB board mounting base 41 near the electrical connector fixing mechanism 3 is provided with a PCB placement groove 411; the width and height of the PCB placement groove 411 are equal to the width and height of the test line connection end 422 of the PCB board 42; the PCB board 42 and the PCB placement groove 411 are detachably connected; the middle of the upper side of the PCB board mounting base 41 away from the electrical connector fixing mechanism 3 is provided with a test line groove 412; the opening width of the test line groove 412 is less than the length of the test line connection end 422 of the PCB board 42; the pressure plate 43 is detachably connected to the PCB board mounting base 41. In actual use, the PCB mounting base 41 is square. Its upper side, near the end of the electrical connector fixing mechanism 3, has a PCB placement slot 411 with a width and height equal to the test lead connection end 422. The test lead connection end 422 has connection holes on both longitudinal sides. The PCB placement slot 411 has PCB connection holes corresponding to the connection holes. The PCB board 42 is bolted to the PCB placement slot 411. The socket detection end 421 of the PCB board 42 extends towards the socket 12 of the electrical connector 1 on the electrical connector mounting base 32. The pressure plate 43 and the PCB mounting base 41 each have screw holes, and are bolted together.

[0046] like Figure 2 , Figure 4 , Figure 7 As shown, a PCB mounting base positioning plate 44 is also provided under the PCB mounting base 41. The PCB mounting base positioning plate 44 is detachably and fixedly connected to the base 2. The PCB mounting base positioning plate 44 is provided with a third positioning pin hole 441, and the PCB mounting base 41 is provided with a fourth positioning pin hole 413 that matches the third positioning pin hole 441. The PCB mounting base 41 and the pressure plate 43 are respectively provided with a fourth positioning pin hole 413 and a fifth positioning pin hole 431 that match the third positioning pin hole 441. The PCB mounting base positioning plate 44 is positioned relative to the PCB mounting base 41 and the pressure plate 43 through the third positioning pin hole 441, the fourth positioning pin hole 413, and the fifth positioning pin hole 431. The PCB mounting base positioning plate 44 is detachably connected to the PCB mounting base 41 and the pressure plate 43.

[0047] In practical use, the width and length of the PCB mounting base positioning plate 44 are greater than or equal to the width and length of the PCB mounting base 41 and the pressure plate 43. The PCB mounting base positioning plate 44 has two third positioning pin holes 441 symmetrically arranged longitudinally; the two third positioning pin holes 441 form a group. Corresponding to the third positioning pin holes 441, the PCB mounting base 41 and the pressure plate 43 have matching fourth positioning pin holes 413 and fifth positioning pin holes 431. The PCB mounting base positioning plate 44, the PCB mounting base 41, and the pressure plate 43 are each provided with screw holes, and the PCB mounting base positioning plate 44 is connected to the PCB mounting base 41 and the pressure plate 43 by bolts. Since the size of the electrical connector 1 is not fixed, when replacing different electrical connectors 1, it may be necessary to replace different PCB boards 42 and the PCB mounting base 41 used to mount the PCB board 42. By setting the PCB mounting base positioning plate 44, positioning can be completed quickly, improving work efficiency.

[0048] like Figure 2 , Figure 3 , Figure 4 , Figure 8 , Figure 9 As shown, the horizontal push-pull device 7 is arranged horizontally on the lower side of the base 2; the lower side of the base plate 31 is provided with a support leg 21, the height of which is greater than the height of the horizontal push-pull device 7; the lower side of the base 2 corresponding to the electrical connector fixing mechanism 3 is provided with a through hole 22 opened horizontally; the upper end of the connecting section 73 of the horizontal push-pull device 7 passes through the through hole 22 and connects to the base plate 31 of the electrical connector fixing mechanism 3.

[0049] In specific implementation, the transverse push-pull device 7 also includes a push-pull cylinder 71 and a slide plate 72 connected to the output shaft; slide rails 23 are provided on both longitudinal sides of the through hole 22 of the base 2, and the slide plate 72 is provided with a groove 721 corresponding to the slide rail 23 to cooperate with the slide rail 23; the push-pull cylinder 71 is arranged transversely on one side of the middle of the through hole 22 on the lower side of the base 2; the lower end of the connecting section 73 is connected to the upper end of the slide plate 72, and its upper end is connected to the lower end of the base plate 31. Among them, the groove 721 has a through groove with an upper opening and a transverse opening, and the inner wall of the through groove is provided with symmetrically symmetrically positioned sliding protrusions; the slide rail 23 cooperates with the through groove, and the slide rail 23 is provided with a sliding groove corresponding to the sliding protrusion.

[0050] In practical use, the base 2 has limiting structures 8 on both sides of the through hole 22 on its lower side to restrict excessive movement of the slide plate 72. The limiting structure 8 includes a limiting seat 81, a fixed limiting part 82 and an adjustable elastic limiting part 83 disposed on the limiting seat 81. The elastic limiting housing of the adjustable elastic limiting part 83 is threadedly connected to the limiting seat 81, and a spring and a pushing part cooperating with the spring are provided inside the elastic limiting housing. By setting the adjustable elastic limiting part 83, the impact sound can be eliminated by using the spring.

[0051] The technical solutions provided by the embodiments of this utility model have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the embodiments of this utility model. The description of the above embodiments is only for helping to understand the principles of the embodiments of this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the embodiments of this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A withstand voltage insulation testing device for electrical connectors, characterized in that, include - A base, on which an electrical connector fixing mechanism, a PCB board mechanism, a cable exchange socket and a control electrical box are arranged; - The electrical connector fixing mechanism clamps and fixes the electrical connector, with the connector's socket facing the PCB board mechanism; the electrical connector fixing mechanism is connected to the lateral push-pull device; - The PCB board mechanism is opposite to and adjacent to the electrical connector fixing mechanism. The socket detection end of the PCB board on the PCB board mechanism faces the socket. The end away from the socket detection end is the test wire connection end connected to the test wire. -The lateral push-pull device drives the electrical connector fixing mechanism to move closer to / away from the PCB board mechanism, so that the socket and the socket detection end are engaged or disengaged; -The connector is detachably connected to the test lead; The control electrical box is electrically connected to the electrical connector fixing mechanism, the wire changing socket, and the lateral push-pull device.

2. The electrical connector withstand voltage insulation testing device according to claim 1, characterized in that, The electrical connector fixing mechanism includes an electrical connector mounting base disposed on the base plate and a clamping mechanism for clamping and fixing the electrical connector. The upper end of the electrical connector mounting base is provided with a placement groove for placing the electrical connector. The placement groove corresponds to the housing and pin of the electrical connector, respectively, and is a housing groove and a pin groove. The housing groove is located on the upper end of the side of the electrical connector mounting base facing the PCB board mechanism. The clamping mechanism includes a clamping cylinder, which is spaced on the upper side of the electrical connector mounting base via a bracket set on the base plate; the lower end of the output shaft of the clamping cylinder is provided with a clamping plate that mates with the upper side of the housing; The clamping cylinder is electrically connected to the control electrical box; The base plate is fixedly connected to the horizontal push-pull device, and there is a clearance fit between the lower side of the base plate and the upper side of the base.

3. The electrical connector withstand voltage insulation testing device according to claim 2, characterized in that, The electrical connector mounting base is also provided with an electrical connector positioning plate, which is detachably and fixedly connected to the base plate. The electrical connector positioning plate is provided with a first positioning pin hole; the electrical connector mounting base is provided with a second positioning pin hole that matches the first positioning pin hole; the electrical connector positioning plate and the electrical connector mounting base are positioned by the first positioning pin hole and the second positioning pin hole; the electrical connector mounting base and the electrical connector positioning plate are bolted together.

4. The electrical connector withstand voltage insulation testing device according to claim 2, characterized in that, The electrical connector mounting base extends toward the PCB board mechanism from the end closest to the PCB board.

5. The electrical connector withstand voltage insulation testing device according to claim 2, characterized in that, A flexible pressure block is also connected below the pressure plate.

6. The electrical connector withstand voltage insulation testing device according to claim 1, characterized in that, The PCB board mechanism also includes a PCB board mounting base and a pressure plate; The PCB mounting base has a PCB placement slot on its upper side near the electrical connector fixing mechanism; the width and height of the PCB placement slot are equal to the width and height of the test line connection end of the PCB. The PCB board and the PCB placement slot are detachably connected; The PCB mounting base has a test line groove on the upper middle part of the end away from the electrical connector fixing mechanism; the opening width of the test line groove is smaller than the length of the test line connection end of the PCB board. The pressure plate is detachably connected to the PCB board mounting base.

7. The electrical connector withstand voltage insulation testing device according to claim 6, characterized in that, The PCB board mounting base is further provided with a PCB board mounting base positioning plate, which is detachably and fixedly connected to the base. The PCB board mounting base positioning plate is provided with a third positioning pin hole, and the PCB board mounting base and the pressure plate are respectively provided with a fourth positioning pin hole and a fifth positioning pin hole that match the third positioning pin hole; the PCB board mounting base positioning plate is positioned with the PCB board mounting base and the pressure plate through the third positioning pin hole, the fourth positioning pin hole and the fifth positioning pin hole, and the PCB board mounting base positioning plate is detachably connected with the PCB board mounting base and the pressure plate.

8. The electrical connector withstand voltage insulation testing device according to claim 2, characterized in that, The lateral push-pull device is arranged laterally on the lower side of the base; The bottom plate is provided with a support leg, and the height of the support leg is greater than the height of the lateral push-pull device. The base has a through hole on the lower side of the corresponding electrical connector fixing mechanism, which is opened horizontally. The upper end of the connecting section of the lateral push-pull device passes through the bottom plate of the electrical connector fixing mechanism via a through hole.

9. The electrical connector withstand voltage insulation testing device according to claim 8, characterized in that, The transverse push-pull device also includes a push-pull cylinder and a slide plate connected to the output shaft; the longitudinal sides of the lower through hole of the base are provided with slide rails, and the slide plate is provided with a slide groove that cooperates with the slide rails; The push-pull cylinder is arranged laterally on one side of the middle of the through hole on the lower side of the base; The lower end of the connecting section is connected to the upper end of the slide plate, and its upper end is connected to the lower end of the base plate.

10. The electrical connector withstand voltage insulation testing device according to claim 9, characterized in that, The base has limiting structures on both sides of the through hole on its lower side to restrict excessive movement of the sliding plate; The limiting structure includes a limiting seat, a fixed limiting part and an adjustable elastic limiting part disposed on the limiting seat.

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