CN222258963U

CN222258963U - A dynamic force testing tool for battery cover

Info

Publication number: CN222258963U
Application number: CN202322887235.4U
Authority: CN
Inventors: 李源; 贺文文; 李林阳; 吴长军; 曹勇; 凌生斌; 何帆
Original assignee: Gotion High Tech Co Ltd
Current assignee: Gotion High Tech Co Ltd
Priority date: 2023-10-26
Filing date: 2023-10-26
Publication date: 2024-12-27
Anticipated expiration: 2033-10-26

Abstract

The utility model proposes a dynamic force testing tool for a battery cover, which relates to the technical field of force testing tooling, and comprises a workbench, a fixture substrate for placing a battery cover, a fixing fixture and a load transmission mechanism, wherein the fixture substrate and the load transmission mechanism are both mounted on the workbench, the fixing fixture is mounted on the fixture substrate and cooperates with the fixture substrate to clamp the battery cover, the load transmission mechanism is connected to the battery cover and applies forces in horizontal and vertical directions for testing; the utility model can test forces in different directions on battery covers of different sizes, estimate the maximum stress state of the battery cover, know in advance the pressure that the internal battery can withstand, and prevent the risk of the battery being squeezed.

Description

Dynamic force testing tool for battery cell cover plate

Technical Field

The utility model relates to the technical field of force testing tools, in particular to a dynamic force testing tool for a battery cell cover plate.

Background

The lithium battery has the characteristics of high energy density, no memory effect, long single cycle period, high efficiency, cleaning, no pollution and the like, so that the lithium battery is widely applied. In recent years, lithium batteries are continuously developed, products are continuously iterated, and particularly square shell batteries are favored in all fields due to the characteristics of good mechanical strength, simple lamination and assembly processes, high energy density and the like.

In the module or the battery pack, the single battery cell is connected in series or in parallel between the battery cells through welding the aluminum or copper connecting sheet and the battery cell cover plate terminal, and the connection strength of the cover plate terminal and the connecting sheet is important. The test of terminal stress under the current simulation actual working condition is mostly completed at the battery core end, the independent dynamic force test of the cover plate is not laid out in advance, the force bearing strength of the cover plate terminal is the premise of ensuring the battery core end test to pass, and if the test can be estimated in advance, the risk can be effectively prevented.

In order to solve the problems, the invention provides a dynamic force testing tool for a battery cell cover plate, which can effectively fix battery cell cover plates with different sizes and realize different dynamic force testing requirement cover plate terminals in xyz directions.

Disclosure of utility model

The utility model aims to provide a dynamic force testing tool for a battery cell cover plate, which is used for testing battery cell cover plates with different sizes in directions.

Based on the technical problems in the background technology, the utility model provides a dynamic force testing tool for a battery cell cover plate, which comprises a workbench, a clamp substrate for placing the battery cell cover plate, a fixed clamp and a load conducting mechanism, wherein the clamp substrate and the load conducting mechanism are both arranged on the workbench, the fixed clamp is arranged on the clamp substrate and clamps the battery cell cover plate by matching with the clamp substrate, and the load conducting mechanism is connected with the battery cell cover plate and applies force in the horizontal direction and the vertical direction for testing.

Further, the slide grooves are formed in two adjacent surrounding edges of the clamp substrate, slide bars are slidably mounted on the slide grooves of the two adjacent surrounding edges, and the two slide bars and the two surrounding edges can clamp the length and the width of the battery cell cover plate in the horizontal direction.

Further, the rod length of the two sliding rods is smaller than the side length of the clamp base plate, and the two sliding rods are not in interference.

Further, the battery cell cover plate clamping device further comprises a pressing mechanism which is slidably mounted on the clamp base plate and clamps the battery cell cover plate in the vertical direction with the clamp base plate.

Further, the pushing mechanism comprises two triangular plates, the two triangular plates are vertically and slidably arranged on opposite angles above the clamp base plate respectively, and right angles of the triangular plates are arranged corresponding to right angles of corners of the clamp base plate.

Further, the pressing mechanism further comprises an adjusting mechanism, and the adjusting mechanism is arranged on the clamp base plate and can vertically adjust the position of the triangular plate.

Further, a mounting groove is formed in the battery cell cover plate, a connecting plate is inserted into the mounting groove, and the load conducting mechanism is connected with the battery cell cover plate through the connecting plate.

Compared with the prior art, the dynamic force testing tool for the battery cell cover plate provided by the utility model adopts the technical scheme, and achieves the following technical effects:

The utility model can test the forces in different directions on the cell cover plates with different sizes, estimate the maximum stress state of the cell cover plates, know the bearable pressure of the internal cell in advance, and prevent the risk degree of the cell from being extruded.

Drawings

FIG. 1 is a first perspective view of the present utility model;

FIG. 2 is a second perspective view of the present utility model;

Fig. 3 is a left-hand cross-sectional structural view of the present utility model.

The electric core cover plate is 5, the fixture base plate is 6, the fixture is 1, the chute is 61, the slide bar is 7, the pushing mechanism is 8, the triangle is 81, the mounting groove is 51, and the connecting piece is 2.

Detailed Description

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed, mechanically connected, electrically connected, or communicable with each other, directly connected, indirectly connected through an intervening medium, or in communication between two elements or in an interactive relationship between two elements, unless otherwise explicitly specified. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

Examples

Referring to fig. 1-3, the utility model provides a dynamic force testing tool for a battery cell cover plate 5, which comprises a workbench, a clamp substrate 6 for placing the battery cell cover plate 5, a fixing clamp 1 and a load conducting mechanism, wherein the clamp substrate 6 and the load conducting mechanism are both arranged on the workbench, the fixing clamp 1 is arranged on the clamp substrate 6 and clamps the battery cell cover plate 5 by matching with the clamp substrate 6, and the load conducting mechanism is connected with the battery cell cover plate 5 and applies force in horizontal and vertical directions for testing. The fixture base plate 6 can provide a place for the battery cell cover plate 5, the fixture base plate 6 can be clamped under the action of the fixing fixture 1, the battery cell cover plate 5 with various sizes is fixed, the fixing fixture 1 can fix the battery cell cover plate 5 in the transverse and vertical directions, and then the load transmission mechanism moves the battery cell cover plate 5 to perform the test in the transverse and vertical directions.

In a specific embodiment, referring to fig. 1-2, two adjacent surrounding edges of the fixture substrate 6 are provided with sliding grooves 61, sliding rods 7 are slidably mounted on the sliding grooves 61 of the two adjacent surrounding edges, and the two sliding rods 7 and the two surrounding edges can clamp the length and the width of the cell cover plate 5 in the horizontal direction. Two slide bars 7 are adjacent and are L-shaped, and when sliding, the slide bars are matched with two adjacent coamings of the clamp base plate 6 to clamp the battery cell cover plate 5.

In a specific embodiment, referring to fig. 1, the rod length of the two slide rods 7 is smaller than the side length of the fixture base plate 6, and the two slide rods 7 do not collide. The two sliding rods 7 need to avoid mutual influence after sliding, so that the movable space is reduced, and the use range is reduced.

In a specific embodiment, referring to fig. 1-2, the battery cell cover plate 5 further comprises a pressing mechanism 8, wherein the pressing mechanism 8 is slidably mounted on the fixture base plate 6 and clamps the battery cell cover plate 5 in the vertical direction with the fixture base plate 6. The pressing mechanism 8 can clamp the battery cell cover plate 5 in the vertical direction, so that the battery cell cover plate 5 is prevented from being unstable in fixation.

In a specific embodiment, referring to fig. 1-2, the pushing mechanism 8 includes two triangular plates 81, the two triangular plates 81 are vertically slidably mounted on opposite corners above the jig base plate 6, respectively, and right angles of the triangular plates 81 are mounted corresponding to right angles of corners of the jig base plate 6. The upper part of the battery cell cover plate 5 needs to be free for connecting the load transmission mechanism, so that two triangular plates 81 are adopted to vertically limit two non-adjacent corners of the battery cell cover plate 5, and falling is avoided.

In a specific embodiment, referring to fig. 1-2, the pushing mechanism 8 further includes an adjusting mechanism that is mounted on the clamp base plate 6 and can vertically adjust the position of the triangle 81. The adjusting mechanism can adjust the vertical position of the triangular plate 81, so that the device is suitable for mounting the battery cell cover plates 5 with different thicknesses.

In a specific embodiment, referring to fig. 1-2, a mounting groove 51 is provided on the cell cover 5, a connecting piece 2 is inserted into the mounting groove 51, and the load conducting mechanism is connected with the cell cover 5 through the connecting piece 2 and applies pressure or thrust to perform test work.

The present utility model is not limited to the above-mentioned embodiments, and any person skilled in the art, based on the technical solution of the present utility model and the inventive concept thereof, can be replaced or changed within the scope of the present utility model.

Claims

1. The utility model provides a electricity core apron dynamic force test fixture, its characterized in that, including workstation, place anchor clamps base plate (6) of electricity core apron (5), mounting fixture (1) and load conduction mechanism, anchor clamps base plate (6) and load conduction mechanism all install on the workstation, mounting fixture (1) are installed on anchor clamps base plate (6) and are cooperated anchor clamps base plate (6) to carry out the centre gripping to electricity core apron (5), load conduction mechanism is connected and is applyed the power of horizontal and vertical direction with electricity core apron (5) and test.

2. The dynamic force testing tool for the battery cell cover plate according to claim 1, wherein the two adjacent surrounding edges of the clamp base plate (6) are provided with sliding grooves (61), sliding rods (7) are slidably arranged on the sliding grooves (61) of the two adjacent surrounding edges, and the two sliding rods (7) and the two surrounding edges can clamp the length and the width of the battery cell cover plate (5) in the horizontal direction.

3. The dynamic force testing tool for the cell cover plate according to claim 2, wherein the rod length of the two slide rods (7) is smaller than the side length of the clamp base plate (6), and the two slide rods (7) are not in interference.

4. The dynamic force test fixture for the battery cell cover plate according to claim 1, further comprising a pressing mechanism (8), wherein the pressing mechanism (8) is slidably mounted on the fixture base plate (6) and clamps the battery cell cover plate (5) in the vertical direction with the fixture base plate (6).

5. The dynamic force test fixture of a cell cover plate according to claim 4, wherein the pressing mechanism (8) comprises two triangular plates (81), the two triangular plates (81) are vertically and slidably mounted on opposite angles above the fixture base plate (6), and right angles of the triangular plates (81) are mounted corresponding to right angles of corners of the fixture base plate (6).

6. The dynamic force test fixture of a cell cover plate according to claim 4, wherein the pressing mechanism (8) further comprises an adjusting mechanism, and the adjusting mechanism is mounted on the fixture base plate (6) and can vertically adjust the position of the triangular plate (81).

7. The dynamic force testing tool for a cell cover plate according to claim 1, wherein the tool comprises

The battery cell cover plate (5) is provided with a mounting groove (51), a connecting piece (2) is inserted into the mounting groove (51),

The load conducting mechanism is connected with the battery cell cover plate (5) through the connecting piece (2).