An insulation voltage withstanding testing device

Abstract

The utility model relates to lithium battery technical field especially an insulation withstand voltage testing device, including test board, elevating seat and a plurality of detection module, the passageway is formed with on the test board, the width of passageway is adapted to the width of the shell of placing fixture, elevating seat is liftably configured on the passageway top, the detection module is configured on the elevating seat, the number of detection module is same with the number of a whole row of shell in the width direction of fixture, and detection module and corresponding shell position are opposite, the detection module includes a pair of elastic PIN needle of vertical configuration and different height, and when detecting, the needle point of one of the elastic PIN needle is pressed and fits in the positive pole of the convex part on the shell top end surface, and the needle point of the other elastic PIN needle is pressed and fits in the non-convex part on the shell top end surface as the negative pole. The technical problem of low insulation withstand voltage test efficiency and abnormal product granularity in the prior art is solved.

Description

Technical Field

[0001] This utility model relates to the field of lithium battery technology, and in particular to an insulation withstand voltage testing device. Background Technology

[0002] After the lithium battery casing is manufactured, it needs to undergo insulation withstand voltage testing. Currently, the efficiency of insulation withstand voltage testing is low, and it is basically done manually, with a production capacity of about 4,500 pieces per person per shift. During testing, the casing needs to be taken out of the blister box and placed on a fixed fixture for testing. After the test, the casing is put back into the blister box. However, the process of putting the casing back into the blister box can cause the casing opening to come into contact with the blister box and scratch, which can easily generate non-metallic foreign matter contamination and cause abnormal particle size in the product. Therefore, it is urgent to improve production efficiency, reduce the risk of abnormal particle size, and improve the product yield. Summary of the Invention

[0003] To address the technical problem of low efficiency in insulation withstand voltage testing in existing technologies, which leads to abnormal product particle size, this application proposes an insulation withstand voltage testing device that solves the aforementioned technical problem.

[0004] The technical solution adopted by this utility model to solve its technical problem is:

[0005] This utility model provides an insulation withstand voltage testing device, comprising: a test platform with a passageway formed on the test platform, the width of the passageway being adapted to the width of the fixture for placing the housing; a lifting seat, the lifting seat being movably disposed above the passageway; and multiple detection modules, the detection modules being disposed on the lifting seat, the number of the detection modules being the same as the number of housings in a row along the width direction of the fixture, and the detection modules being positioned opposite to the corresponding housings. Each detection module includes a pair of vertically arranged elastic pins of different heights. During testing, the tip of one of the elastic pins presses against the protruding positive electrode on the top surface of the housing, and the tip of the other elastic pin presses against the non-protruding portion of the top surface of the housing, which serves as the negative electrode.

[0006] Furthermore, the test bench includes a platform and positioning frames disposed on both sides of the platform surface, with the space between the two positioning frames forming the passageway.

[0007] Furthermore, a U-shaped frame is provided on the platform, and two columns of the U-shaped frame are fixed outside the passageway. A lifting cylinder is provided on the crossbeam of the U-shaped frame, and the cylinder body of the lifting cylinder is vertically fixed on the crossbeam. The piston rod of the lifting cylinder passes through the crossbeam and is fixedly connected to the lifting seat.

[0008] Furthermore, it also includes two sets of guide components, which are distributed on both sides of the lifting cylinder. Each guide component includes a guide sleeve and a guide rod. The guide sleeve is fixed on the crossbeam, and the rod body of the guide rod is slidably fitted inside the guide sleeve. The bottom end of the guide rod is fixedly connected to the lifting seat.

[0009] Furthermore, the bottom surface of the platform is provided with pads.

[0010] Furthermore, it also includes a movable shelf on which the control box of the detection module is placed.

[0011] Based on the above technical solution, the technical effects that this utility model can achieve are as follows:

[0012] This invention relates to an insulation withstand voltage testing device that changes the traditional testing mode. The entire fixture is placed on the aisle of the testing platform, which is equivalent to vertical positioning. The aisle also restricts the fixture's positioning in the width direction, equivalent to horizontal positioning. The fixture is then pushed below the lifting platform, aligning a row of housings on the fixture with multiple detection modules on the lifting platform. After alignment, a pair of elastic pins on the detection modules press against the housings as the lifting platform descends, performing the test. After testing one row, the fixture is pushed forward horizontally to the next row of housings, aligning them with the detection modules for the next round of testing. This continues until all housings on the fixture have been tested. This insulation withstand voltage testing device eliminates the need to remove the housings from the fixture during the entire testing process, thus avoiding the problem of abnormal product particle size caused by the housing openings scraping against the fixture during return. Furthermore, the ability to test the entire row without removing the housings significantly improves testing efficiency. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of the insulation withstand voltage testing device of this utility model;

[0014] Figure 2 This is a schematic diagram from another perspective of the insulation withstand voltage testing device of this utility model;

[0015] Figure 3 This is a partial schematic diagram of the insulation withstand voltage testing device of this utility model;

[0016] Figure 4 This is a top view of the lifting seat of this utility model and a comparison view of the elastic PIN needle after it has been cut open.

[0017] Where: a-shell, a1-positive electrode;

[0018] b-jigs;

[0019] 1-Test stand, 11-Aisle, 12-Tablet, 121-Foot pad, 13-Positioning frame;

[0020] 2-Lifting seat, 21-U-shaped frame, 211-Column, 212-Crossbeam, 22-Lifting cylinder, 23-Guide sleeve, 24-Guide rod;

[0021] 3-Detection module, 31-Flexible pin, 32-Control chassis, 33-Fixing block;

[0022] 4-Shelf. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0024] like Figure 1-4 As shown, this utility model provides an insulation withstand voltage testing device, including a test platform 1, a lifting seat 2, and multiple detection modules 3. A passageway 11 is formed on the test platform 1, and the width of the passageway 11 is adapted to the width of the fixture b on which the housing a is placed. In this embodiment, the fixture b is a blister box. The lifting seat 2 is movably arranged above the passageway 11. The detection modules 3 are arranged on the lifting seat 2. The number of detection modules 3 is the same as the number of housings a in a row along the width direction of the blister box, and the detection modules 3 are positioned opposite to the corresponding housings a. The detection module 3 includes a pair of vertically arranged elastic pins 31 with different heights. The pair of elastic pins 31 are connected to the lifting seat 2 by a fixing block 33. During testing, the tip of one elastic pin 31 presses against the protruding positive electrode a1 on the top surface of the housing a, and the tip of the other elastic pin 31 presses against the non-protruding part of the top surface of the housing a, which serves as the negative electrode, thereby performing the test. Note: The protruding part on the top surface of shell a is the positive electrode a1, and the rest of the shell is the negative electrode. In this insulation withstand voltage test device, both the positive electrode a1 and the negative electrode test points are placed on the top of shell a. The height difference of the two elastic PIN pins 31 is adapted to the protrusion distance of the positive electrode a1 on the end surface of shell a.

[0025] In one specific embodiment of the present invention, the test platform 1 includes a platform 12 and positioning frames 13 disposed on both sides of the platform 12, and the space between the two positioning frames 13 forms a passageway 11.

[0026] Specifically, a U-shaped frame 21 is configured on the platform 12. The two uprights 211 of the U-shaped frame 21 are fixed outside the passageway 11. A lifting cylinder 22 is configured on the crossbeam 212 of the U-shaped frame 21. The cylinder body of the lifting cylinder 22 is vertically fixed on the crossbeam 212. The piston rod of the lifting cylinder 22 passes through the crossbeam 212 and is fixedly connected to the lifting seat 2 to control the lifting of the lifting seat 2.

[0027] Furthermore, it also includes two sets of guide components, which are distributed on both sides of the lifting cylinder 22. The guide components include a guide sleeve 23 and a guide rod 24. The guide sleeve 23 is fixed on the crossbeam 212, and the rod body of the guide rod 24 is slidably fitted inside the guide sleeve 23. The bottom end of the guide rod 24 is fixedly connected to the lifting seat 2 to guide the lifting action of the lifting seat 2.

[0028] In one specific embodiment of this utility model, the bottom surface of the test platform 12 is provided with pads 121, so that the test platform 12 can be better placed on the table of other equipment for operation.

[0029] In one specific embodiment of this utility model, a movable shelf 4 is also included. The shelf 4 is equipped with casters at its bottom, and the control box 32 of the detection module 3 is placed on the shelf 4. The shelf 4 and the test platform 1 are separate, and the control box 32 is electrically connected to a pair of elastic pins 31 via wires.

[0030] It should be understood that the specific embodiments described above are only for explaining the present invention and are not intended to limit the present invention. Obvious variations or modifications derived from the spirit of the present invention are still within the protection scope of the present invention.

Claims

1. An insulation withstand voltage testing device, characterized in that, include: A test bench (1) has a passageway (11) formed on it, the width of which is adapted to the width of the fixture (b) on which the housing (a) is placed; A lifting seat (2) is movably disposed above the passageway (11); Multiple detection modules (3) are arranged on the lifting seat (2). The number of detection modules (3) is the same as the number of housings (a) in a row in the width direction of the fixture (b). The detection modules (3) are positioned opposite to the corresponding housings (a). Each detection module (3) includes a pair of vertically arranged elastic pins (31) with different heights. During detection, the tip of one of the elastic pins (31) is pressed against the positive electrode (a1) protruding from the top surface of the housing (a), and the tip of the other elastic pin (31) is pressed against the non-protruding part of the top surface of the housing (a) which serves as the negative electrode.

2. The insulation withstand voltage testing device according to claim 1, characterized in that, The test bench (1) includes a tabletop (12) and positioning frames (13) disposed on both sides of the tabletop (12), and the space between the two positioning frames (13) forms the passageway (11).

3. The insulation withstand voltage testing device according to claim 2, characterized in that, A U-shaped frame (21) is arranged on the platform (12). Two columns (211) of the U-shaped frame (21) are fixed outside the passage (11). A lifting cylinder (22) is arranged on the crossbeam (212) of the U-shaped frame (21). The cylinder body of the lifting cylinder (22) is vertically fixed on the crossbeam (212). The piston rod of the lifting cylinder (22) passes through the crossbeam (212) and is fixedly connected to the lifting seat (2).

4. The insulation withstand voltage testing device according to claim 3, characterized in that, It also includes two sets of guide components, which are distributed on both sides of the lifting cylinder (22). The guide components include a guide sleeve (23) and a guide rod (24). The guide sleeve (23) is fixed on the crossbeam (212), and the rod body of the guide rod (24) is slidably fitted inside the guide sleeve (23). The bottom end of the guide rod (24) is fixedly connected to the lifting seat (2).

5. The insulation withstand voltage testing device according to claim 2, characterized in that, The bottom surface of the platform (12) is provided with pads (121).

6. The insulation withstand voltage testing device according to claim 1, characterized in that, It also includes a movable shelf (4) on which the control box (32) of the detection module (3) is placed.

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