Multifunctional test fixture and test device

Abstract

The utility model relates to a multifunctional test fixture and a test device, comprising a test box body with an upper end opening and a test cover body, the upper end opening of the test box body is provided with a plurality of placing cavities used for placing single cylindrical batteries at intervals, and each placing cavity is internally provided with a fixture assembly. The clamp assembly comprises a fixed clamping plate which is fixedly arranged and an elastic clamping plate assembly which is slidably arranged, the cylindrical battery is horizontally placed between the fixed clamping plate and the elastic clamping plate assembly, and the cylindrical battery can be clamped through the movement of the elastic clamping plate assembly; when the cylindrical battery is clamped and tested, the cylindrical battery can be directly placed in the placing cavity, the elastic clamping plate assembly does not need to be pulled open by hands, after placing is completed, the testing cover body is covered, and finally the elastic clamping plate assembly is driven by the driving piece to automatically move towards the fixed clamping plate. Therefore, the cylindrical battery is clamped through the elastic clamping plate assembly and the fixed clamping plate, the overall operation is simple and convenient, and the test efficiency is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of battery testing, in particular to a multifunctional testing fixture and a testing device. Background Art

[0002] Currently, most electric vehicles on the market use cylindrical battery packs, so it is necessary to conduct life tests on cylindrical batteries before the battery packs are assembled.

[0003] For example, a Chinese patent for a cylindrical battery cycle life test tool (publication number CN220568905U) sets at least two accommodating chambers in the test box, each of which is independent of each other. A fixing fixture is set in the accommodating chamber, so that a cylindrical battery can be clamped in each accommodating chamber by the fixing fixture. During the simultaneous charge and discharge test of multiple cylindrical batteries, they are in independent test spaces and do not interfere with each other. While improving the efficiency of cylindrical battery testing, the safety and reliability of cylindrical battery testing are guaranteed. However, the structure still has the following shortcomings: the cover plate 3 is set on one side of the test box 1, and when placing the battery, each clamping plate 221 in the accommodating chamber needs to be manually pulled open before the battery is placed, which makes the operation more troublesome and reduces the efficiency of the test. Utility Model Content

[0004] The utility model aims to solve one of the problems existing in the existing related technologies to at least a certain extent. To this end, the utility model provides a multifunctional test fixture and a test device.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A multifunctional test fixture comprises a test box body with an upper opening and a test cover body, wherein the upper opening of the test box body is provided with a plurality of placement cavities for placing a single cylindrical battery at intervals, and a fixture assembly is arranged in each placement cavity, wherein the fixture assembly comprises a fixed clamping plate which is fixedly arranged and an elastic clamping plate assembly which is slidably arranged, and the cylindrical battery is placed flat between the fixed clamping plate and the elastic clamping plate assembly, and the cylindrical battery can be clamped by moving the elastic clamping plate assembly, and a driving member is arranged on the test cover body, and when the test cover body is closed on the test box body, the elastic clamping plate assembly can be driven by the driving member to move toward the fixed clamping plate.

[0007] In some embodiments, the elastic clamp assembly includes a mobile base slidably arranged in the placement cavity, a baffle and a mobile clamp are arranged on the upper side of the mobile base, the baffle is fixedly arranged, the mobile clamp is slidably arranged, and the sliding direction is consistent with the sliding direction of the mobile base, and a spring is arranged between the baffle and the mobile clamp.

[0008] In some embodiments, a guide column is provided on a side of the movable clamping plate close to the baffle plate, the guide column is movably inserted into the baffle plate, and the spring is sleeved on the guide column.

[0009] In some embodiments, the lower end of the movable clamping plate is slidably disposed on the movable base via a slide seat, and the upper end is tilted forward.

[0010] In some embodiments, a guide seat is provided on the back side of the fixed splint, and sliding rods are provided on both sides of the guide seat for sliding left and right. A limiting rod is provided at the outer end of the sliding rod, and the limiting rod extends toward the elastic splint assembly, and the cylindrical battery is arranged between the two limiting rods.

[0011] In some embodiments, a tension spring is connected between the baffle and the side wall of the placement cavity, and the tension spring is located on a side away from the fixed clamp.

[0012] In some embodiments, an inclined guide plate is provided at the upper end of the baffle, and the upper end of the inclined guide plate extends upward at an angle toward the fixed clamping plate. The driving member is an extension plate extending downward. When the test cover body is closed on the test box body, the lower end of the extension plate abuts against the inclined guide plate, thereby driving the movable base to move toward the fixed clamping plate.

[0013] In some embodiments, when the test cover is covered on the test box, the two are fixed by a lock.

[0014] In some embodiments, threading holes and side heat dissipation holes are provided on both the left and right sides of the placement cavity, and top heat dissipation holes are provided on the test cover.

[0015] A testing device uses the multifunctional testing fixture.

[0016] Compared with the prior art, the beneficial effect of the utility model is that when testing the clamping of a cylindrical battery, the cylindrical battery can be directly placed in the placement cavity without manually pulling open the elastic clamp assembly. After the placement is completed, the test cover is closed, and finally the elastic clamp assembly is driven by the driving member to automatically move toward the fixed clamp, so that the cylindrical battery is clamped by the elastic clamp assembly and the fixed clamp. The overall operation is simple and convenient, thereby improving the efficiency of the test. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic diagram of the test cover of the utility model when it is covered on the test box;

[0018] Figure 2 It is a top view schematic diagram of the test cover of the utility model when it is covered on the test box;

[0019] Figure 3 For this utility model Figure 2 AA section view and partial enlarged schematic diagram;

[0020] Figure 4 It is a top view schematic diagram of the test box of the utility model. DETAILED DESCRIPTION

[0021] The following specific implementation contents provide a variety of different embodiments or examples for implementing the utility model. Of course, these are only embodiments or examples and are not intended to be limiting. In addition, repeated reference numerals may be used in different embodiments, such as repeated numbers and / or letters. These repetitions are for the purpose of simply and clearly describing the utility model and do not represent a specific relationship between the different embodiments and / or structures discussed.

[0022] like Figure 1-Figure 4 A multifunctional test fixture is shown, comprising a test box 1 with an upper opening and a test cover 2, wherein the upper opening of the test box 1 is provided with a plurality of placement cavities 3 for placing a single cylindrical battery 10 arranged at intervals, and a fixture assembly is arranged in each placement cavity 3, so that multiple cylindrical batteries 10 can be in an independent test space during the simultaneous charge and discharge test without interfering with each other, thereby improving the test efficiency of the cylindrical battery 10 and ensuring the safety and reliability of the test of the cylindrical battery 10.

[0023] Furthermore, the clamp assembly includes a fixed clamp plate 4 and a slidably arranged elastic clamp plate assembly 5, the cylindrical battery 10 is placed flat between the fixed clamp plate 4 and the elastic clamp plate assembly 5, and the cylindrical battery 10 can be clamped by moving the elastic clamp plate assembly 5, and a driving member is arranged on the test cover body 2, and when the test cover body 2 is closed on the test box body 1, the elastic clamp plate assembly 5 can be driven by the driving member to move toward the fixed clamp plate 4.

[0024] When the cylindrical battery 10 is clamped and tested, the cylindrical battery 10 can be directly placed in the placement cavity 3 without manually pulling open the elastic clamp assembly 5. After the placement is completed, the test cover 2 is covered, and finally the elastic clamp assembly 5 is driven by the driving member to automatically move toward the fixed clamp 4, so that the cylindrical battery 10 is clamped by the elastic clamp assembly 5 and the fixed clamp 4. The overall operation is simple and convenient, thereby improving the efficiency of the test.

[0025] See also Figure 3 , Figure 4As shown, the elastic clamping plate assembly 5 includes a movable base 21 slidably arranged in the placement cavity 3, and a baffle 22 and a movable clamping plate 23 are arranged on the upper side of the movable base 21. The baffle 22 is fixedly arranged, and the movable clamping plate 23 is slidably arranged, and the sliding direction is consistent with the sliding direction of the movable base 21. A spring 24 is arranged between the baffle 22 and the movable clamping plate 23; during clamping, the movable base 21 moves toward the fixed clamping plate 4, and then the cylindrical battery 10 is clamped between the movable clamping plate 23 and the fixed clamping plate 4 by the movable clamping plate 23 under the action of the spring 24.

[0026] Furthermore, a guide column 31 is provided on one side of the movable clamping plate 23 close to the baffle 22 , and the guide column 31 is movably inserted into the baffle 22 . The spring 24 is sleeved on the guide column 31 , so that the movable clamping plate 23 can be compressed and moved smoothly, and the cylindrical battery 10 can be stably clamped.

[0027] See also Figure 3 As shown, the lower end of the movable clamping plate 23 is slidably arranged on the movable base 21 through the slide seat 41, and the upper end is tilted forward; thus, the fixed clamping plate 4, the movable clamping plate 23 and the bottom wall of the placement cavity 3 can form a three-point clamping on the outer periphery of the cylindrical battery 10 to ensure that the cylindrical battery 10 cannot move along its radial direction.

[0028] See also Figure 4 As shown, a guide seat 51 is provided on the back side of the fixed splint 4, and sliding rods 52 are provided on both sides of the guide seat 51 for sliding movement left and right. A limiting rod 53 is provided at the outer end of the sliding rod 52, and the limiting rod 53 extends toward the elastic splint assembly 5, and the cylindrical battery 10 is provided between the two limiting rods 53, so that the two limiting rods 53 can pre-limit the movement of the cylindrical battery 10 in the axial direction.

[0029] In the utility model, a tension spring 61 is connected between the baffle 22 and the side wall of the placement cavity 3, and the tension spring 61 is located on the side away from the fixed clamping plate 4; so that when the test cover is not covered on the test box 1, the movable base 21 can be kept moving toward one side of the placement cavity 3 through the action of the tension spring 61, so that the distance between the movable clamping plate 23 and the fixed clamping plate 4 can be increased, and the cylindrical battery 10 can be directly placed.

[0030] See also Figure 3As shown, an oblique guide plate 71 is provided at the upper end of the baffle 22, and the upper end of the oblique guide plate 71 extends obliquely upward toward the fixed clamping plate 4, and the driving member is an extension plate 72 extending downward. When the test cover body 2 is covered on the test box body 1, the lower end of the extension plate 72 abuts against the oblique guide plate 71, thereby driving the movable base 21 to move toward the fixed clamping plate 4; when the test cover body 2 is covered on the test box body 1 from top to bottom, the extension plate 72 will abut against the oblique guide plate 71, and the extension plate 72 continues to move downward. At this time, under the guiding action of the oblique guide plate 71, the movable base 21 and the baffle 22 move toward the fixed clamping plate 4, and finally the cylindrical battery 10 is clamped by the movable clamping plate 23 and the spring 24 on the movable base 21.

[0031] See also Figure 1 As shown, threading holes 91 and side heat dissipation holes 92 are provided on both sides of the placement cavity 3, and top heat dissipation holes 93 are provided on the test cover 2, so that the cylindrical battery 10 under test can be cooled.

[0032] In the present invention, when the test cover 2 is covered on the test box 1 , the two are fixed together by a lock 81 .

[0033] The utility model also provides a testing device, which is used for testing the cycle life of a battery and applies the multifunctional testing fixture mentioned above.

[0034] Combined with the drawings and the above display and description of the basic principles and main features of the utility model and the advantages of the utility model, the technical personnel in the industry should understand that the utility model is not limited to the above embodiments, and the above embodiments and descriptions are only to illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, and these changes and improvements fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A multifunctional test fixture, comprising a test box (1) with an upper opening and a test cover (2), characterized in that: The upper opening of the test box (1) is provided with a plurality of placement cavities (3) for placing a single cylindrical battery (10) arranged at intervals, and a clamp assembly is provided in each placement cavity (3), the clamp assembly comprising a fixed clamp plate (4) and a slidably arranged elastic clamp plate assembly (5), the cylindrical battery (10) is placed flat between the fixed clamp plate (4) and the elastic clamp plate assembly (5), and the cylindrical battery (10) can be clamped by moving the elastic clamp plate assembly (5), and a driving member is provided on the test cover (2), and when the test cover (2) is covered on the test box (1), the elastic clamp plate assembly (5) can be driven by the driving member to move in the direction of the fixed clamp plate (4).

2. A multifunctional test fixture according to claim 1, characterized in that: The elastic clamping plate assembly (5) comprises a movable base (21) slidably arranged in the placement cavity (3); a baffle (22) and a movable clamping plate (23) are arranged on the upper side of the movable base (21); the baffle (22) is fixedly arranged; the movable clamping plate (23) is slidably arranged, and the sliding direction is consistent with the sliding direction of the movable base (21); and a spring (24) is arranged between the baffle (22) and the movable clamping plate (23).

3. A multifunctional test fixture according to claim 2, characterized in that: A guide column (31) is arranged on one side of the movable clamping plate (23) close to the baffle plate (22); the guide column (31) is movably inserted into the baffle plate (22); and the spring (24) is sleeved on the guide column (31).

4. A multifunctional test fixture according to claim 2, characterized in that: The lower end of the movable clamping plate (23) is slidably disposed on the movable base (21) via a sliding seat (41), and the upper end is tilted forward.

5. The multifunctional test fixture according to claim 1, characterized in that: A guide seat (51) is arranged on the back side of the fixed clamping plate (4), and sliding rods (52) are arranged on both sides of the guide seat (51) to slide left and right, and a limiting rod (53) is arranged at the outer end of the sliding rod (52), and the limiting rod (53) extends in the direction of the elastic clamping plate assembly (5), and the cylindrical battery (10) is arranged between the two limiting rods (53).

6. A multifunctional test fixture according to claim 2, characterized in that: A tension spring (61) is connected between the baffle plate (22) and the side wall of the placement cavity (3), and the tension spring (61) is located on a side away from the fixed clamping plate (4).

7. A multifunctional test fixture according to claim 6, characterized in that: An oblique guide plate (71) is arranged at the upper end of the baffle (22), and the upper end of the oblique guide plate (71) extends obliquely upward in the direction of the fixed clamping plate (4). The driving member is an extension plate (72) extending downward. When the test cover (2) is covered on the test box (1), the lower end of the extension plate (72) abuts against the oblique guide plate (71), thereby driving the movable base (21) to move in the direction of the fixed clamping plate (4).

8. The multifunctional test fixture according to claim 1, characterized in that: When the test cover (2) is covered on the test box (1), the two are fixed by a lock (81).

9. The multifunctional test fixture according to claim 1, characterized in that: Threading holes (91) and side heat dissipation holes (92) are provided on both the left and right sides of the placement cavity (3), and a top heat dissipation hole (93) is provided on the test cover (2).

10. A testing device, characterized in that: The testing device uses the multifunctional testing fixture of any one of claims 1 to 9.

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