CN211293182U - Battery test fixture and battery test device - Google Patents

Abstract

The utility model provides a battery test fixture and a battery test device, which relate to the technical field of lithium batteries. The battery test fixture includes two clamps and two adapter assemblies. The two clamps are independently arranged apart from each other, and the clamp heads of the clamps are connected to the battery to be tested; the two adapter assemblies are respectively mounted on the two clamps, one end of the adapter assembly is detachably connected to the clamp, and the other end is connected to the battery test device. The battery test fixture provided by the utility model can match different wires on the battery test device, thereby reducing the number of test fixtures, reducing the test cost, and at the same time reducing the time for the tester to find a matching test fixture, which is convenient for the tester to perform a short circuit safety test on the battery.

Description

A battery test fixture and battery test device

technical field

The utility model relates to the technical field of lithium batteries, in particular to a battery testing fixture and a battery testing device.

Background technique

As an emerging energy source, lithium-ion batteries are gradually occupying the consumer product and power vehicle markets with their advantages of high energy density, high voltage, cleanness and environmental protection. However, while pursuing high electrochemical performance, its safety performance must also be considered, so the battery needs to undergo a series of safety tests to verify its safety performance. Among them, the external short circuit of lithium battery is one of the main safety tests, which is of great significance to ensure the safety of the battery.

The existing lithium battery short-circuit test device mainly includes an explosion-proof box and a lead wire, and a set of positive and negative electrode clamps are drawn from both ends of a lead wire, wherein the clamp is directly connected to the positive and negative electrodes of the lithium battery to realize the external short circuit of the lithium battery. The existing positive and negative clamps are directly connected and fixed to the lead wires at both ends of the wire by soldering. When fire or liquid leakage occurs during the test, the generated high temperature or electrolyte is easy to oxidize or damage the clamp, so the clamp needs to be replaced in time. . However, the clamp fixed by soldering needs high temperature to melt tin to remove the clamp, so it is very cumbersome to replace. Generally speaking, a battery testing device is equipped with multiple wires, and the built-in fixtures are not only large and easy to occupy space, but also a set of fixtures can only be applied to one wire. Increased costs.

Utility model content

The purpose of the utility model is to provide a battery test fixture, which is convenient for testers to perform short-circuit test on lithium batteries and improves the test efficiency.

For this purpose, the utility model adopts the following technical solutions:

The utility model provides a battery test fixture, comprising:

Two clips, the two clips are independently set apart from each other, and the clips of the clips are connected to the battery to be tested;

Two adapter assemblies are respectively installed on the two clips, one end of the adapter assembly is detachably connected to the clips, and the other end is connected to the battery testing device.

Preferably, the adapter assembly includes:

an adapter cable, one end of which is connected to the wire of the battery testing device;

A connection terminal, the transfer wire is detachably connected with the clip through the connection terminal.

Preferably, it further includes a first connection assembly, and the connection terminal and the clip are detachably connected through the first connection assembly.

Preferably, the first connection assembly includes:

a first bolt, penetrating the clip and the connection terminal;

The first nut is arranged on the part of the first bolt that protrudes from the clip and the connection terminal and is threadedly connected with the first bolt.

Preferably, a first through hole is formed on the handle of the clip, a second through hole corresponding to the first through hole is formed at one end of the connection terminal, and the first bolt can pass through the first through hole. A through hole and a second through hole pass through.

Preferably, one end of the transfer wire is provided with a wire connecting portion, and the wire is connected to the transfer wire through the wire connecting portion.

Preferably, the surface of the handle of the clip is covered with an insulating layer.

Preferably, a distance adjustment mechanism is also included, and the clips can be installed at different positions of the distance adjustment mechanism.

Preferably, the distance adjustment mechanism includes:

slide rail;

Two clamps are configured to be able to slide along the slide rail and be fixed at different positions on the slide rail, and the two clamps are respectively mounted on the two clamps.

Preferably, it also includes a second connecting assembly, and the clip is detachably connected to the clamping member through the second connecting assembly.

The utility model provides a battery testing device, which comprises the above-mentioned battery testing fixture.

The beneficial effects of the present utility model are:

The battery test fixture provided by the utility model comprises two clips and two transfer components respectively arranged on the two clips, and the clips and the transfer components are detachably connected. When short-circuiting the battery, the clips of the two clips are respectively connected to the positive and negative poles of the battery, and the adapter assembly is connected to the wires of the battery testing device. By arranging a detachable connection between the clip and the adapter assembly, the clip can be adapted to different wires on the battery test device, so as to solve the problem of using multiple sets of test fixtures to be adapted and connected to different wires in the prior art. It takes more time to find the problem of the corresponding test fixture during testing, thereby reducing the test time. In addition, when the fixture is damaged by high temperature or flame, the detachable fixture is easier to disassemble and replace than the welding fixture. Replacing multiple sets of test fixtures with a single set of test fixtures can reduce the number of test fixtures, thereby reducing testing costs.

Description of drawings

1 is a top view of a battery test fixture provided by a specific embodiment of the present invention;

2 is a schematic structural diagram of a battery test fixture provided by a specific embodiment of the present invention including a distance adjustment mechanism.

In the picture:

1. Clip; 11. Handle; 12. Chuck;

2. Adapter components; 21. Terminals; 22. Adapter cables; 23. Wire connection parts;

3. The first connecting component; 31. The first bolt; 32. The first nut;

4. The second connecting assembly; 41, the second bolt; 42, the second nut;

5. Distance adjustment mechanism; 51. Slide rail; 52. Clamping piece;

6. Conductor.

Detailed ways

In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved more clearly, the technical solutions of the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings. Obviously, the described embodiments are only Some embodiments of the present invention, but not all embodiments.

Please refer to FIG. 1 and FIG. 2 , the present invention provides a battery test fixture, which includes two oppositely arranged clips 1 and two adapter assemblies 2 . The poles are connected, and the two adapter assemblies 2 are respectively installed on the two clips 1 . One end of the adapter assembly 2 is detachably connected to the clip 1 , and the other end is connected to the wire 6 of the battery testing device. By setting the clip 1 to be detachably connected to the wire 6, the clip 1 can be connected to different wires 6, solving the problem that the existing test fixture can only correspond to a specific wire 6, so that the test fixture can match different wires 6, thereby reducing the number of test fixtures, reducing test costs, and reducing the time for testers to find matching test fixtures, which is convenient for testers to perform short-circuit safety tests on batteries.

Specifically, the adapter assembly 2 includes an adapter wire 22 and a connection terminal 21 . One end of the transfer wire 22 is connected to the wire 6 of the battery testing device; the transfer wire 22 is detachably connected to the clip 1 through the terminal 21 . Further, the connection terminal 21 can be selected as a copper nose connection terminal.

Preferably, the test fixture further includes a first connecting component 3 , and the terminal 21 and the clip 1 are detachably connected through the first connecting component 3 .

Specifically, the first connection assembly 3 includes a first bolt 31 and a first nut 32 . The first bolt 31 penetrates the clip 1 and the connection terminal 21 ; the first nut 32 is disposed on the part of the first bolt 31 protruding from the clip 1 and the connection terminal 21 and is threadedly connected with the first bolt 31 . By arranging the first bolt 31 and the first nut 32, the clip 1 and the connecting terminal 32 can be fixed together, and the clip 1 and the connecting terminal 21 can be detachably connected to each other by removing the first nut 32 and the first bolt 31. , when the short-circuit test of the battery fails and the test fixture is damaged by flame or electrolyte, it is not necessary to disconnect the connection between the clamp 1 and the wire 6 by melting solder, just unscrew the first nut 32. The connection terminal 21 is detached from the clip 1 , which is more convenient and will not damage the clip 1 or the transfer wire 22 during the detachment process.

Specifically, the handle 11 of the clip 1 is provided with a first through hole, one end of the terminal 21 is provided with a second through hole corresponding to the first through hole, and the first bolt 31 can pass through the first through hole and the second through hole. Pass through the through hole, so that the clip 1 can be screwed with the terminal 21 through the mutual cooperation between the first bolt 31 and the first nut 32 .

Preferably, one end of the transfer wire 22 is provided with a wire connection portion 23 , and the wire 6 is connected to the transfer wire 22 through the wire connection portion 23 .

Preferably, the surface of the handle 11 of the clip 1 is covered with an insulating layer, and the insulating layer can prevent the tester from directly contacting the conductive clip 1 and improve the safety of the test fixture.

Since different batteries to be tested have different center-to-center distances between the tabs, in order to prevent the clips 12 of the two clips 1 from directly contacting when testing batteries with smaller center-to-center distances between the tabs, preferably, in this embodiment, the test fixture It also includes a distance adjustment mechanism 5. The clips 1 can be installed in different positions of the distance adjustment mechanism 5 according to the actual specifications of the battery to be tested, so as to avoid direct contact between the clips 12 of the two clips 1 connected to the positive and negative poles of the battery, so that the The role of safety protection.

Preferably, the distance adjustment mechanism 5 includes a sliding rail 51 and two clamping members 52 . The two clamps 52 are detachably connected to the slide rail 51 , and the two clamps 1 are respectively mounted on the two clamps 52 . The clamping member 52 can slide along the length direction of the slide rail 51 and is fixed on different positions of the slide rail 51 through the clamping grooves provided at different positions on the slide rail 51 .

Preferably, the test fixture further includes a second connecting component 4 , and the clip 1 is detachably connected to the clamping member 52 through the second connecting component 4 .

Specifically, the second connecting assembly 4 includes a second bolt 41 and a second nut 42 , and the clip 1 is fixed on the clamping member 52 through the screw fitting connection of the second bolt 41 and the second nut 42 .

The utility model provides a battery testing device, which comprises the above-mentioned battery testing fixture.

The technical principle of the present invention has been described above with reference to the specific embodiments. These descriptions are only for explaining the principle of the present invention, and should not be construed as limiting the protection scope of the present invention in any way. Based on the explanations herein, those skilled in the art can think of other specific embodiments of the present invention without creative efforts, and these methods will all fall within the protection scope of the present invention.

Claims (10)

1. A battery test fixture, comprising:

the two clamps (1) are separately arranged, and a chuck (12) of each clamp (1) is connected with a battery to be tested;

the battery testing device comprises two switching components (2), wherein the two switching components (2) are respectively arranged on the two clamps (1), one end of each switching component (2) is detachably connected with the corresponding clamp (1), and the other end of each switching component is connected with a battery testing device.

2. The battery test fixture of claim 1, wherein the adapter assembly (2) comprises:

a patch cord (22) having one end connected to a lead (6) of the battery test device;

the connecting terminal (21), the patch cord (22) pass through connecting terminal (21) with clip (1) detachable connection.

3. The battery test fixture of claim 2, further comprising a first connection assembly (3), wherein the terminal (21) is removably connected to the clip (1) via the first connection assembly (3).

4. The battery test fixture according to claim 3, wherein the first connection assembly (3) comprises:

a first bolt (31) penetrating the clip (1) and the terminal (21);

and a first nut (32) that is provided on a portion of the first bolt (31) that protrudes from the clip (1) and the connection terminal (21), and that is screwed to the first bolt (31).

5. The battery test fixture according to claim 4, wherein the handle (11) of the clip (1) is provided with a first through hole, one end of the terminal (21) is provided with a second through hole corresponding to the first through hole, and the first bolt (31) can pass through the first through hole and the second through hole.

6. The battery test fixture according to claim 2, wherein one end of the adapter wire (22) is provided with a wire connection portion (23), and the wire (6) is connected with the adapter wire (22) through the wire connection portion (23).

7. The battery test fixture of claim 1, wherein the surface of the handle (11) of the clamp (1) is coated with an insulating layer.

8. The battery test fixture according to any one of claims 1-7, further comprising a distance adjustment mechanism (5), wherein the clamp (1) can be mounted at different positions of the distance adjustment mechanism (5).

9. The battery test fixture of claim 8, wherein the distance adjustment mechanism (5) comprises:

a slide rail (51);

the two clamping pieces (52) are configured to be capable of sliding along the sliding rail (51) and being fixed at different positions on the sliding rail (51), and the two clamps (1) are respectively arranged on the two clamping pieces (52).

10. A battery testing device comprising the battery testing jig of any one of claims 1 to 9.

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