Clamp

Abstract

The utility model provides a clamp. The clamp comprises at least two clamping plates, all the clamping plates are arranged at intervals in the thickness direction, and a clamping space is formed between any two adjacent clamping plates. The side, facing the clamping space, of each clamping plate is provided with at least one heat exchange gasket, and the side, facing the clamping space, of each heat exchange gasket is provided with at least one heat exchange groove. The battery clamp solves the problem of poor heat dissipation effect of the battery clamp in the prior art.

Description

Technical Field

[0001] This utility model relates to the field of battery testing equipment, and more specifically, to a clamp. Background Technology

[0002] During cycle testing of square aluminum-cased batteries, a significant amount of heat is generated during charging and discharging. If this heat cannot be dissipated promptly, it can lead to overheating, affecting the battery's cycle performance and safety. Currently, the clamps used for cell cycle testing consist of two thick steel plates, primarily for securing the battery and not adequately addressing heat dissipation. During room-temperature cycling, the heat generated during charging and discharging accumulates on the contact surface between the cell and the clamp, making it difficult to dissipate quickly through the two steel plates.

[0003] Therefore, existing technologies suffer from poor heat dissipation of battery clamps. Utility Model Content

[0004] The main purpose of this utility model is to provide a clamp to solve the problem of poor heat dissipation of battery clamps in related technologies.

[0005] To achieve the above objectives, according to one aspect of the present invention, a clamp is provided, comprising: at least two clamping plates, all clamping plates being spaced apart along the thickness direction, and a clamping space being formed between any two adjacent clamping plates; at least two heat exchange pads, each clamping plate having at least one heat exchange pad on the side facing the clamping space, and the heat exchange pad having at least one heat exchange groove on the side facing the clamping space.

[0006] Furthermore, the two ends of the heat exchange tank are connected to a set of oppositely arranged sides of the heat exchange pads.

[0007] Furthermore, there are multiple heat exchange tanks, which are spaced apart and parallel to each other.

[0008] Furthermore, the heat exchange groove is an arc-shaped groove.

[0009] Furthermore, the heat exchange pads are made of copper.

[0010] Furthermore, the fixture also includes a temperature sensing component, at least a portion of which is disposed within the heat exchange tank.

[0011] Furthermore, the projected area of ​​the clamping plate in the thickness direction is greater than the projected area of ​​the heat exchange pad in the thickness direction.

[0012] Furthermore, in the thickness direction of the clamping plates, the projections of all the clamping plates coincide.

[0013] Furthermore, the clamp also includes a retainer that passes through the heat exchange pad and is detachably connected to the clamp plate.

[0014] Furthermore, the heat exchange pad has mounting holes for the fastener to pass through, and the mounting holes are spaced apart from the heat exchange tank.

[0015] Applying the technical solution of this utility model, the clamp in this application includes: at least two clamping plates and at least two heat exchange pads. All the clamping plates are spaced apart along the thickness direction, and a clamping space is formed between any two adjacent clamping plates; each clamping plate is provided with at least one heat exchange pad on the side facing the clamping space, and the side of the heat exchange pad facing the clamping space has at least one heat exchange groove.

[0016] When using the fixture of this application, two opposing clamping plates form a clamping space for holding the battery under test. Since the clamping plates have heat exchange pads on the side facing the clamping space, direct contact between the heat exchange pads and the battery under test is ensured during clamping. Furthermore, since the heat exchange pads have at least one heat exchange groove on the side facing the clamping space, the opening of the heat exchange groove faces the battery under test, thereby improving the heat exchange effect through airflow within the heat exchange groove. Therefore, this solution significantly enhances the heat dissipation capacity of the battery cell during cycle testing by introducing heat exchange pads into the fixture, effectively controlling the battery cell temperature and avoiding performance degradation and safety risks caused by excessively high temperatures. Thus, the fixture of this application effectively solves the problem of poor heat dissipation in existing battery fixtures. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0018] Figure 1 This diagram illustrates the positional relationship between the fixture and the battery cell under test according to a specific embodiment of this application.

[0019] Figure 2 A schematic diagram of the heat exchange pad structure of a clamp according to a specific embodiment of this application is shown.

[0020] The above figures include the following reference numerals:

[0021] 10. Clamping plate; 20. Heat exchange pad; 21. Heat exchange tank; 30. Fixing component; 31. Mounting hole; 40. Battery cell to be tested. Detailed Implementation

[0022] 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.

[0023] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0024] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0025] To address the problem of poor heat dissipation in battery clamps in related technologies, this application provides a clamp.

[0026] like Figure 1 and Figure 2 As shown, the clamp in this application includes at least two clamping plates 10 and at least two heat exchange pads 20. All the clamping plates 10 are spaced apart along the thickness direction, and a clamping space is formed between any two adjacent clamping plates 10; each clamping plate 10 is provided with at least one heat exchange pad 20 on the side facing the clamping space, and the side of the heat exchange pad 20 facing the clamping space has at least one heat exchange groove 21.

[0027] When using the fixture of this application, a clamping space for holding the battery under test can be formed by two opposing clamping plates 10. Since the side of the clamping plate 10 facing the clamping space has a heat exchange pad 20, the heat exchange pad 20 can be in direct contact with the battery cell 40 under test during the clamping process. Simultaneously, since the side of the heat exchange pad 20 facing the clamping space has at least one heat exchange groove 21, the opening of the heat exchange groove 21 faces the battery cell 40 under test, thereby improving the heat exchange effect of the battery cell 40 under test through airflow within the heat exchange groove 21. Therefore, by introducing the heat exchange pad 20 into the fixture, this solution significantly enhances the heat dissipation capacity of the battery cell during cycle testing, effectively controls the battery cell temperature, and avoids the degradation of cycle performance and safety risks caused by excessively high temperatures. Therefore, the fixture of this application effectively solves the problem of poor heat dissipation in existing battery fixtures.

[0028] Specifically, the two ends of the heat exchange groove 21 are connected to a set of oppositely arranged sides of the heat exchange pad 20. The principle of this design is that the connected ends of the heat exchange groove 21 allow outside air to more easily enter or exit the groove, thereby promoting airflow within the groove and accelerating heat dissipation. The effect is improved heat dissipation efficiency and reduced battery temperature. The application scenario is in battery cycle testing, especially under conditions requiring rapid heat dissipation to maintain stable battery temperature. During the cycle test, the connection between the two ends of the heat exchange groove 21 allows for natural airflow, carrying away the heat generated by the battery. Furthermore, in this application, to further improve the heat exchange effect on the battery cell 40 under test, cold air can be introduced to both ends of the heat exchange groove 21 to control the surface temperature of the battery cell.

[0029] Optionally, there are multiple heat exchange slots 21, which are spaced apart and parallel to each other. The principle of this design is to further improve heat dissipation efficiency by increasing the number and surface area of ​​the heat exchange slots 21. At the same time, this arrangement also ensures a more uniform temperature throughout the heat exchange pads 20.

[0030] Preferably, the heat exchange groove 21 is an arc-shaped groove. The arc-shaped groove structure increases the surface area of ​​the heat exchange groove, thereby improving heat dissipation efficiency. It also allows for more precise temperature control of the battery during cycle testing and better heat dissipation. In one specific embodiment of this application, the heat exchange groove is a semi-circular groove.

[0031] Optionally, the heat exchange pad 20 is made of copper. This configuration ensures that the heat exchange pad 20 has a high heat transfer coefficient, thereby guaranteeing its thermal conductivity. Of course, the material used to manufacture the heat exchange pad 20 can also be adapted in this application.

[0032] Optionally, the fixture also includes a temperature detection component, at least a portion of which is disposed within the heat exchange tank 21. By including the temperature detection component, real-time monitoring of the temperature of the battery cell 40 under test can be achieved.

[0033] Optionally, the projected area of ​​the clamping plate 10 in the thickness direction is larger than the projected area of ​​the heat exchange pad 20 in the thickness direction. More optionally, the projections of all the clamping plates 10 overlap in the thickness direction. The purpose of this arrangement is to ensure the stability of the battery within the clamping space and the effective coverage of the heat exchange pads by making the area of ​​the clamping plate 10 larger than the area of ​​the heat exchange pad 20. This improves the stability and heat dissipation efficiency of the battery during cycle testing.

[0034] Optionally, the clamp also includes a fixing member 30, which passes through the heat exchange pad 20 and is detachably connected to the clamping plate 10. The fixing member 30 ensures the stability between the heat exchange pad 20 and the clamping plate 10.

[0035] Optionally, the heat exchange pad 20 has a mounting hole 31 through which the fixing member 30 passes, and the mounting hole 31 is spaced apart from the heat exchange groove 21. This arrangement can effectively reduce the influence of the fixing member 30 on the air flow in the heat exchange groove 21, thereby further ensuring the heat dissipation effect of the battery cell 40 under test.

[0036] In one specific embodiment of this application, the fixing member 30 is a bolt, and the heat exchange pad 20 and the clamping plate 10 are respectively provided with threaded holes corresponding to the bolts, thereby achieving a detachable connection between the heat exchange pad 20 and the clamping plate 10 through the mutual cooperation of the bolts and threaded holes. In this application, the threaded holes are provided on a set of oppositely arranged sides of the heat exchange pad 20, and multiple spaced threaded holes can be provided on each side of the heat exchange pad 20.

[0037] It should be noted that the clamp in this application can also be applied to actual batteries. In this case, the clamp can be part of the battery casing, and the heat exchange pads are set inside the battery casing. The battery cell can be set between two heat exchange pads to improve the heat dissipation of the battery.

[0038] As can be seen from the above description, the embodiments of this utility model achieve the following technical effects:

[0039] 1. This solution significantly enhances the heat dissipation capacity of the battery cell during cyclic testing by introducing heat exchange pads 20 into the fixture, effectively controlling the battery cell temperature and avoiding performance degradation and safety risks caused by excessive temperature.

[0040] 2. The arc-shaped groove design not only increases the heat dissipation area but also promotes air circulation, allowing cooling air to pass through more effectively, further improving heat dissipation efficiency and ensuring the stability of the temperature of the large surface area of ​​the battery cell.

[0041] 3. The copper heat exchange pad 20, due to its excellent thermal conductivity, can quickly conduct the heat generated by the battery cell, ensuring temperature control of the test environment and improving the accuracy and reliability of the test.

[0042] 4. The integration of temperature detection components enables real-time monitoring of temperature changes across the entire cell surface, providing more accurate data support for cell performance analysis and helping to optimize cell design and improve product quality.

[0043] 5. The design of the detachable fastener 30 not only facilitates the replacement and maintenance of the heat exchange pad 20, but also ensures the stability of the pad during the cyclic test, avoiding the impact on heat dissipation due to displacement or detachment.

[0044] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0045] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0046] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.

[0047] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A clamp characterized in that, The clamp comprises: at least two clamping plates (10), all of the clamping plates (10) are arranged in a thickness direction, and a clamping space is formed between any two adjacent clamping plates (10); at least two heat exchange pads (20), each clamping plate (10) is provided with at least one heat exchange pad (20) on a side facing the clamping space, and the heat exchange pad (20) has at least one heat exchange groove (21) on a side facing the clamping space.

2. The clamp of claim 1, wherein Both ends of the heat exchange groove (21) are in communication with a group of opposite sides of the heat exchange pad (20).

3. The clamp of claim 1, wherein The heat exchange groove (21) is a plurality of heat exchange grooves (21) arranged in a parallel manner.

4. The clamp of claim 1, wherein The heat exchange groove (21) is an arc-shaped groove.

5. The clamp of claim 1, wherein The heat exchange pad (20) is made of copper.

6. The clamp of any one of claims 1 to 5, wherein, The clamp further comprises a temperature detection assembly, at least a part of the temperature detection assembly is arranged in the heat exchange groove (21).

7. The clamp of any one of claims 1 to 5, wherein, The projection area of the clamping plate (10) in the thickness direction is greater than the projection area of the heat exchange pad (20) in the thickness direction.

8. The clamp of any one of claims 1 to 5, wherein, In the thickness direction of the clamping plate (10), the projections of all the clamping plates (10) coincide.

9. The clamp of any one of claims 1 to 5, wherein, The clamp further comprises a fixing member (30), the fixing member (30) passes through the heat exchange pad (20) and is detachably connected with the clamping plate (10).

10. The clamp of claim 9, wherein, The heat exchange pad (20) has a mounting hole (31) for the fixing member (30) to pass through, and the mounting hole (31) is arranged in a spaced manner with the heat exchange groove (21).

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