Battery clamp

Abstract

The utility model relates to the technical field of tool clamps for battery detection, and provides a battery clamp, which comprises a fastener, a plurality of clamping pieces and a plurality of clamping pieces, the two end plates are used for clamping a battery; wherein the edge of each end plate is respectively provided with at least three mounting holes, and the fasteners penetrate through the mounting holes, so that a battery clamping parallel slide is formed between the clamping surfaces of the two end plates; according to the utility model, the battery clamping parallel slide is formed by the two end plates, and the fasteners penetrate through the mounting holes to connect the two end plates, so that the battery is stably clamped between the two end plates and is parallel to the plate surfaces of the end plates, the problem of stable mounting of a battery cell is solved through a simple structure, the operation difficulty of manual operation is reduced, and the working efficiency is improved. And the use convenience degree of the clamp is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tooling fixtures for battery detection, in particular to a battery fixture. Background Art

[0002] For lithium-ion batteries, the length of cycle life is a major criterion for judging the performance of lithium-ion batteries. Under specific working conditions, the longer the cycle life, the better the battery quality. Battery deformation is a common phenomenon in the process of battery charge and discharge cycles. The main factors causing deformation are the following two points:

[0003] 1. The pole piece inside the battery will expand during the charging and discharging process, causing the thickness of the bare battery inside the battery to increase, which in turn causes the battery to deform;

[0004] 2. During the battery cycle, side reactions will occur, accompanied by the generation of gas, which will increase the internal gas pressure of the battery, and then cause the battery shell to deform. Battery deformation is a major factor in the deterioration of battery cycle performance. At the same time, battery deformation also poses a safety hazard. During the charge and discharge cycle test of lithium-ion batteries, it is usually necessary to apply a clamp force to the battery cell to avoid battery deformation and obtain better cycle performance. However, the application of the clamp is usually manual, and it is difficult to ensure the parallelism of the battery cell or it takes a lot of installation time to ensure the parallelism of the battery cell installation, which is very inconvenient.

[0005] Therefore, how to ensure the parallelism of battery cells in a simple manner during the test process is a technical problem that needs to be solved urgently in this field. Utility Model Content

[0006] The utility model provides a battery clamp to solve the above problem.

[0007] In order to achieve the above-mentioned purpose, an embodiment of the utility model provides a battery clamp, comprising: a fastener; and two end plates for clamping a battery; wherein the edge of each end plate is respectively provided with at least three mounting holes, and the fastener passes through the mounting holes to form a battery clamping parallel position between the clamping surfaces of the two end plates; the end plate is triangular or rectangular, and has three mounting holes to form a triangular layout; the end plate is rectangular, and has four mounting holes, respectively corresponding to each end corner of the rectangle; the clamping surface of any end plate is provided with a positioning recess adapted to the battery contour, and the clamping surface of the other end plate is provided with a temperature detection portion.

[0008] Furthermore, the depth of the positioning recess is not less than 0.5 mm.

[0009] Furthermore, the temperature detection portion is arranged in a groove shape to cooperate with the battery surface to form a temperature detection hole.

[0010] Furthermore, the temperature detection portion extends from the edge of the end plate toward the center and extends into the battery clamping area.

[0011] Furthermore, the groove-shaped cross-section of the temperature detection portion is semicircular, rectangular or trapezoidal.

[0012] Furthermore, the end plate is made of stainless steel, aluminum or heat-resistant resin.

[0013] Compared with the prior art, the embodiments of the utility model have the following beneficial effects: a parallel position for battery clamping is formed by two end plates, and then a fastener is passed through the mounting hole to connect the two end plates, so that the battery can be stably clamped between the two end plates parallel to the end plate surface, and the problem of stable installation of the battery cell is solved through a simple structure, the difficulty of manual operation is reduced, and the convenience of using the clamp is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0015] Figure 1 An exploded view of a preferred embodiment of a battery clamp in the prior art;

[0016] Figure 2 A three-dimensional diagram of the optimal embodiment of the temperature detection part of the utility model;

[0017] Figure 3 It is a stereoscopic diagram of the optimal embodiment of the positioning recess of the utility model.

[0018] Among them, 1. end plate; 11. positioning recess; 12. clamping surface; 13. temperature detection part; 2. battery clamping parallel position; 3. mounting hole; 4. fastener; 5. battery. DETAILED DESCRIPTION

[0019] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0020] See also Figure 1 Combined with Figure 3 The utility model provides a battery clamp, comprising: a fastener 4; and two end plates 1 for clamping a battery 5; the end plates 1 are made of stainless steel, aluminum or heat-resistant resin. At least three mounting holes 3 are respectively arranged on the edge of each end plate 1, and the fastener 4 passes through the mounting holes 3, so that a battery clamping parallel position 2 is formed between the clamping surfaces 12 of the two end plates 1.

[0021] The end plate 1 is triangular or rectangular, and there are three mounting holes 3 to form a triangular layout. The end plate 1 is rectangular, and there are four mounting holes 3, corresponding to each end corner of the rectangle. The clamping surface 12 of any end plate 1 is provided with a positioning recess 11 adapted to the battery contour. Since the lithium-ion battery usually needs to monitor the temperature of the large surface of the battery during the charge and discharge cycle test, however, due to the application of the clamp, the large surface of the battery cell is covered by the battery clamp, which increases the difficulty of temperature monitoring there. Therefore, a temperature detection portion 13 is provided on one end plate 1, and a temperature detection portion 13 is provided on the clamping surface 12 of the other end plate 1. The length of the temperature detection hole is 1 / 3-2 / 3 of the width of the right end plate 2. The temperature detection portion 13 is a groove-shaped setting to cooperate with the battery surface to form a temperature detection hole. The temperature detection portion 13 extends from the edge of the end plate 1 to the center and extends into the battery clamping area. The groove-shaped cross-section of the temperature detection portion 13 is semicircular, rectangular or trapezoidal.

[0022] During the installation process, the battery 5 can be fixed and positioned in advance by the positioning recess 11, which reduces the time for manual proofreading, improves the parallelism of the battery cell installation, and can effectively avoid the positional displacement of the battery 5 that may occur during subsequent charge and discharge cycles. The depth of the positioning recess 11 is not less than 0.5 mm.

[0023] In summary, the beneficial effects of the utility model are as follows: by setting the positioning recess 11, when the battery 5 is clamped and installed, the battery 5 can be fixed on the end plate 1 in advance through the positioning recess, and then the clamping force is applied, which effectively improves the convenience of the clamp installation and avoids the problems of easy sliding of the battery cell and difficulty in adjusting the parallelism of the battery cell during the installation of the battery cell clamp. A temperature probe hole 31 is set on the side of the end plate 2 of the battery 5 clamp and extends to the center of the end plate. During the battery cell cycle test, a temperature sensing wire can be placed at the position of the temperature probe hole to conveniently obtain the changes in the large surface of the battery cell during the test. At the same time, the position of the temperature probe hole 31 belongs to a semi-enclosed space, which can effectively reduce the influence of the external environment on the temperature test during the temperature test.

[0024] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A battery clamp, characterized in that: include: Fastener (4); and Two end plates (1) for clamping a battery (5); in At least three mounting holes (3) are respectively arranged on the edge of each end plate (1), and the fasteners (4) pass through the mounting holes (3) so that a battery clamping parallel position (2) is formed between the clamping surfaces (12) of the two end plates (1); The end plate (1) is triangular or rectangular, and has three mounting holes (3) to form a triangular layout; The end plate (1) is rectangular, and has four mounting holes (3), corresponding to the corners of the rectangle respectively; The clamping surface (12) of any one end plate (1) is provided with a positioning recess (11) adapted to the battery contour, and the clamping surface (12) of the other end plate (1) is provided with a temperature detection portion (13).

2. The battery clamp according to claim 1, characterized in that: The depth of the positioning recess (11) is not less than 0.5 mm.

3. The battery clamp according to claim 2, characterized in that: The temperature detection portion (13) is arranged in a groove shape to cooperate with the battery surface to form a temperature detection hole.

4. The battery clamp according to claim 3, characterized in that: The temperature detection portion (13) extends from the edge of the end plate (1) toward the center, and extends into the battery clamping area.

5. The battery clamp according to claim 4, characterized in that: The groove-shaped cross section of the temperature detection portion (13) is semicircular, rectangular or trapezoidal.

6. The battery clamp according to claim 5, characterized in that: The material of the end plate (1) is stainless steel, aluminum or heat-resistant resin.

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