Heat dissipation tool for testing cylindrical battery

Abstract

The utility model discloses a heat dissipation tool for testing a cylindrical battery, which comprises a clamping mechanism used for carrying out a clamping test on the cylindrical battery, a heat dissipation mechanism used for carrying out heat dissipation on the cylindrical battery and a locking mechanism used for realizing locking and unlocking of the clamping mechanism, and is characterized in that the clamping mechanism is assembled at the side part of the cylindrical battery; the battery testing device has the advantages that the structure is simple, the manufacturing cost is low, the clamping mechanism is arranged, a single battery can be clamped and tested, it is avoided that a plurality of batteries interfere with one another to affect the testing result, the batteries are prevented from being damaged or scrapped, and the testing efficiency is improved. The battery clamping and testing device is provided with the heat dissipation mechanism, the battery can be effectively cooled in the testing process through the symmetrically-arranged heat dissipation plate set structure so as to guarantee the testing result of the battery, the clamping mechanism can be rapidly locked and unlocked through the locking mechanism, the battery clamping and testing efficiency can be improved, and the battery testing period can be effectively shortened.

Description

Technical Field

[0001] The utility model relates to the technical field of battery testing tooling, in particular to a heat dissipation tooling for cylindrical battery testing. Background Art

[0002] In the existing technology, with the rapid and rapid development of energy storage and electric vehicle industries, the safety of batteries has attracted more and more attention. The safety risk of batteries generally refers to the risk of thermal runaway. The excessive internal temperature of the battery triggers a violent exothermic reaction of the battery, which is the cause of thermal runaway. By analyzing the process characteristics and features of battery abuse to runaway, we can study the thermal runaway warning technology based on process feature identification and monitoring. The safety problem of power batteries is mainly caused by thermal runaway caused by excessive battery temperature. Therefore, the research on the thermal characteristics of power batteries has attracted widespread attention from researchers in the emerging new energy industry. During the operation of power batteries, due to their large current, , large heat generation. At the same time, since the cylindrical batteries are in a relatively closed environment after being assembled into a battery pack, the temperature in the battery pack will rise sharply, which will cause the entire power battery to generate large heat. When testing lithium-ion cylindrical batteries in the prior art, multiple batteries are generally placed in a temperature control box for simultaneous testing, and multiple layers are set in the temperature control box for placing batteries, and each layer is also provided with multiple batteries arranged at intervals. During the actual electrical performance test, there are no measures to prevent thermal runaway between adjacent batteries. Once thermal runaway occurs in one of the batteries, the normal battery to be tested will be damaged or scrapped, and the other batteries need to be retested, which not only affects the test cycle but also increases the battery scrap rate.

[0003] The Chinese utility model patent with application number: 201921431651.0 discloses an auxiliary installation and testing fixture for cylindrical batteries, including a lower base plate, an upper pressure plate and a fixing plate for fixing cylindrical batteries; the upper surface of the lower base plate is provided with a special-shaped groove with one side open, the upper pressure plate is located directly above the cylindrical battery, the fixing plate is arranged close to the edge of the special-shaped groove and surrounds the outside of the cylindrical battery placed in the fixing hole group; the special-shaped groove is also provided with a heat dissipation mechanism located between the cylindrical batteries. However, the structure of this auxiliary installation and testing fixture for cylindrical batteries is relatively complex, and its manufacturing cost is relatively high. Although multiple batteries can be tested at the same time, if one of the batteries has thermal runaway, it will cause the normal battery to be tested to be damaged or scrapped, and the other batteries need to be retested, which not only affects the test cycle but also increases the battery scrap rate. Utility Model Content

[0004] The utility model aims to provide a heat dissipation tool for cylindrical battery testing.

[0005] In order to achieve the above purpose, the technical solution proposed by the utility model is:

[0006] A heat dissipation tool for testing cylindrical batteries, comprising a clamping mechanism for clamping and testing cylindrical batteries, a heat dissipation mechanism for dissipating heat from cylindrical batteries, and a locking mechanism for locking and unlocking the clamping mechanism. The clamping mechanism is assembled on the side of the cylindrical battery, the heat dissipation mechanism is arranged on the side of the clamping mechanism, and the locking mechanism is arranged in the middle of the clamping mechanism.

[0007] The clamping mechanism includes a clamping base block and a clamping groove. The clamping base block is provided with two groups, and the two groups of clamping base blocks are symmetrically arranged. The clamping groove is provided with two groups, and the two groups of clamping grooves are respectively arranged on the opposite side of the two groups of clamping base blocks and penetrate the clamping base blocks.

[0008] The clamping groove is a semicircular through groove structure, and two groups of the clamping grooves are relatively assembled to form a cylindrical clamping groove corresponding to the cylindrical battery, and the end of the clamping groove is provided with an inwardly concave chamfered structure.

[0009] The heat dissipation mechanism includes a heat dissipation substrate and a heat dissipation block. The heat dissipation substrate is arranged on a side of the clamping base away from the clamping groove and is fixedly connected to the clamping base by bolts. The heat dissipation substrate is arranged in close contact with the clamping base. The heat dissipation blocks are provided with several groups, and the several groups of heat dissipation block arrays are arranged on a side of the heat dissipation substrate away from the clamping base.

[0010] There are two groups of heat dissipation mechanisms, which are symmetrically assembled on the sides of the two groups of clamping base blocks that are away from each other.

[0011] The locking mechanism includes a locking base, a locking wrench, a locking buckle and a locking hook, wherein the locking base is arranged on one side of one group of the clamping base blocks and is fixedly connected to the clamping base block by a screw, the locking wrench is arranged on a side of the locking base away from the clamping base block and is rotatably connected to the locking base through a rotating shaft, the locking buckle is arranged on one side of the other group of the clamping base blocks corresponding to the locking base and is fixedly connected to the clamping base block by a screw, the locking hook is arranged in the middle part of the locking wrench and is rotatably connected to the locking wrench through a rotating shaft, and the locking hook is hung with the locking buckle at one end away from the locking wrench.

[0012] A hanging groove is provided on a side of the locking buckle away from the locking base corresponding to the locking hook, and the locking hook is hung with the locking buckle through the hanging groove.

[0013] There are two groups of locking mechanisms, which are symmetrically arranged on both sides of the two groups of clamping base blocks and located at the connection between the two groups of clamping base blocks.

[0014] It also includes a limiting component, which includes a limiting base block and a limiting screw. The limiting base block is arranged on one side of one group of the clamping base blocks and is fixedly connected to the clamping base block. One side of the limiting base block is arranged in close contact with the clamping base block. There are two groups of limiting screws. The two groups of limiting screws are arranged side by side at the connection between the limiting base block and the clamping base block and penetrate the limiting base block and are threadedly connected to the clamping base block. The limiting base block is fixedly connected to the clamping base block via the limiting screw.

[0015] It also includes an avoidance groove, which is arranged on the side of one group of the clamping base blocks corresponding to the limiting base block and passes through the clamping base block, and the limiting base block is located at the avoidance groove.

[0016] The beneficial effects of the utility model are:

[0017] The structure is simple and the manufacturing cost is low. A clamping mechanism is provided to perform clamping test on a single battery to avoid interference between multiple batteries and affect the test results, avoid battery damage or scrapping, and reduce the battery scrap rate. A heat dissipation mechanism is provided to effectively dissipate the heat of the battery during the test through a symmetrically arranged heat dissipation plate group structure to ensure the test results of the battery. A locking mechanism is provided to realize rapid locking and unlocking of the clamping mechanism, thereby improving the battery clamping test efficiency and effectively shortening the battery test cycle. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a side view of the clamping mechanism of the utility model;

[0020] Figure 3 It is a schematic diagram of the cooperation between the limit assembly and the clamping base block of the utility model.

[0021] In the figure: 1. clamping base block; 2. clamping groove; 3. heat dissipation substrate; 4. heat dissipation block; 5. locking base; 6. locking wrench; 7. locking buckle; 8. locking hook; 9. limiting base block; 10. limiting screw. DETAILED DESCRIPTION

[0022] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0023] A heat dissipation tool for cylindrical battery testing, comprising a clamping mechanism for clamping and testing cylindrical batteries, a heat dissipation mechanism for dissipating heat from cylindrical batteries, and a locking mechanism for locking and unlocking the clamping mechanism. The clamping mechanism is assembled on the side of the cylindrical battery, the heat dissipation mechanism is arranged on the side of the clamping mechanism, and the locking mechanism is arranged in the middle of the clamping mechanism. The overall structural schematic diagram of the utility model is as shown in FIG. Figure 1shown.

[0024] The clamping mechanism includes a clamping base block 1 and a clamping groove 2. The clamping base block 1 is provided with two groups, and the two groups of clamping base blocks 1 are arranged symmetrically. The clamping groove 2 is provided with two groups, and the two groups of clamping grooves 2 are respectively arranged on the opposite side of the two groups of clamping base blocks 1 and penetrate the clamping base block 1. The clamping groove 2 is a semicircular through groove structure. The two groups of clamping grooves 2 are relatively assembled to form a cylindrical clamping groove corresponding to the cylindrical battery. The end of the clamping groove 2 is provided with an inwardly concave chamfered structure. The clamping mechanism cooperates with the clamping base block 1 and the clamping groove 2 to perform a clamping test on the cylindrical battery, wherein the clamping base block 1 is used as the main body of the clamping structure, and the clamping groove 2 is used as the accommodating groove structure on the clamping base block 1, so as to meet the clamping needs of the cylindrical battery. The side view of the clamping mechanism of the utility model is shown as follows Figure 2 shown.

[0025] The heat dissipation mechanism includes a heat dissipation substrate 3 and a heat dissipation block 4. The heat dissipation substrate 3 is arranged on a side of the clamping base 1 away from the clamping groove 2 and is fixedly connected to the clamping base 1 by bolts. The heat dissipation substrate 3 is arranged in close contact with the clamping base 1. The heat dissipation block 4 is provided with a plurality of groups. The plurality of groups of heat dissipation blocks 4 are arranged in an array on a side of the heat dissipation substrate 3 away from the clamping base 1. The heat dissipation mechanism is provided with two groups. The two groups of heat dissipation mechanisms are symmetrically assembled on the sides of the two groups of clamping bases 1 away from each other. The heat dissipation mechanism cooperates with the heat dissipation substrate 3 and the heat dissipation block 4 to form a heat dissipation structure on the side of the clamping mechanism, wherein the heat dissipation substrate 3 is used to provide installation support for the heat dissipation block 4 and install the heat dissipation block 4 on the side of the clamping mechanism, and the heat dissipation block 4 is used to form a heat dissipation structure on the side of the clamping mechanism together with the heat dissipation substrate 3.

[0026] The locking mechanism includes a locking base 5, a locking wrench 6, a locking buckle 7 and a locking hook 8. The locking base 5 is arranged on one side of one group of clamping base blocks 1 and is fixedly connected to the clamping base block 1 by screws. The locking wrench 6 is arranged on the side of the locking base 5 away from the clamping base block 1 and is rotatably connected to the locking base 5 by a rotating shaft. The locking buckle 7 is arranged on the side of the other group of clamping base blocks 1 corresponding to the locking base 5 and is fixedly connected to the clamping base block 1 by screws. The locking hook 8 It is arranged in the middle of the locking wrench 6 and is rotatably connected with the locking wrench 6 through a rotating shaft. The end of the locking hook 8 away from the locking wrench 6 is hung with the locking buckle 7. The locking buckle 7 is away from the locking base 5. The side corresponding to the locking hook 8 is provided with a hanging groove. The locking hook 8 is hung with the locking buckle 7 through the hanging groove. The locking mechanism is provided with two groups. The two groups of locking mechanisms are symmetrically arranged on both sides of the two groups of clamping base blocks 1 and are located at the connection of the two groups of clamping base blocks 1. The locking mechanism is connected through the locking base. 5, the locking wrench 6, the locking buckle 7 and the locking hook 8 cooperate to form a locking structure between the two groups of clamping base blocks 1, wherein the locking base 5 is used to provide installation support for the locking wrench 6, the locking wrench 6 is used to provide installation support for the locking hook 8, the locking buckle 7 is used to provide overlapping support for the locking hook 8, and the locking hook 8 is used to cooperate with the locking buckle 7 to realize the locking and unlocking between the two groups of clamping base blocks 1. When the two groups of clamping base blocks 1 need to be locked, The locking lever 6 is pulled to drive the locking hook 8 to move toward the locking buckle 7, so that the end of the locking hook 8 away from the locking lever 6 is hooked with the locking buckle 7. Then, the locking lever 6 is pressed to engage the locking hook 8 with the locking buckle 7, so that the two groups of clamping base blocks 1 can be locked. When the two groups of clamping base blocks 1 need to be unlocked, the locking lever 6 is pulled to drive the locking hook 8 to disengage the locking buckle 7, so that the two groups of clamping base blocks 1 can be unlocked.

[0027] It also includes a limiting component, which includes a limiting base block 9 and a limiting screw 10. The limiting base block 9 is arranged on one side of one group of clamping base blocks 1 and is fixedly connected to the clamping base block 1. One side of the limiting base block 9 is arranged in close contact with the clamping base block 1. There are two groups of limiting screws 10. The two groups of limiting screws 10 are arranged side by side at intervals at the connection between the limiting base block 9 and the clamping base block 1 and penetrate the limiting base block 9 and are threadedly connected to the clamping base block 1. The limiting base block 9 is fixedly connected to the clamping base block 1 through the limiting screw 10. It also includes an avoidance groove, which is arranged therein corresponding to the limiting base block 9 A group of clamping base blocks 1 are provided on the side and penetrate the clamping base block 1. The limiting base block 9 is located at the avoidance groove. The limiting assembly cooperates with the limiting base block 9 and the limiting screw 10 to form an adjustable limiting structure on the side of the clamping base block 1. The limiting base block 9 is used as an adjustable limiting structure on the side of the clamping base block 1. The limiting screw 10 is used to realize the installation connection between the limiting base block 9 and the clamping base block 1. The position of the limiting base block 9 on the inner side of the avoidance groove can be adjusted according to actual conditions to adjust the position of the limiting structure. The schematic diagram of the cooperation between the limiting assembly of the utility model and the clamping base block 1 is shown in Figure 3 shown.

[0028] Working principle:

[0029] When it is necessary to perform a clamping test on the cylindrical battery, the cylindrical battery is placed in the clamping groove 2 of the two groups of clamping base blocks 1 and the two groups of clamping base blocks 1 are assembled together. Then, the locking wrench 6 is pulled to drive the locking hook 8 to move toward the locking buckle 7, so that the end of the locking hook 8 away from the locking wrench 6 is hooked with the locking buckle 7. Then, the locking wrench 6 is pressed to make the locking hook 8 engage with the locking buckle 7, and the cylindrical battery can be clamped and tested. During the test, the heat dissipation mechanism dissipates heat from the battery to meet its heat dissipation needs. After the test is completed, the locking wrench 6 is pulled to drive the locking hook 8 to disengage the locking buckle 7, and the cylindrical battery can be taken out from between the two groups of clamping base blocks 1.

[0030] The beneficial effects of the utility model are simple structure and low manufacturing cost. It is provided with a clamping mechanism, which can perform clamping test on a single battery, thus avoiding mutual interference of multiple batteries and affecting the test results, avoiding damage or scrapping of the battery, and reducing the battery scrap rate. It is provided with a heat dissipation mechanism, which can effectively dissipate the heat of the battery during the test process through the symmetrically arranged heat dissipation plate group structure to ensure the test results of the battery. It is provided with a locking mechanism, which can realize the rapid locking and unlocking of the clamping mechanism, improve the battery clamping test efficiency, and effectively shorten the battery test cycle.

[0031] The above is a detailed description of an embodiment of the utility model, but the content is only a preferred embodiment of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. A heat dissipation tool for cylindrical battery testing, characterized in that: It includes a clamping mechanism for clamping and testing cylindrical batteries, a heat dissipation mechanism for dissipating heat from cylindrical batteries, and a locking mechanism for locking and unlocking the clamping mechanism. The clamping mechanism is assembled on the side of the cylindrical battery, the heat dissipation mechanism is arranged on the side of the clamping mechanism, and the locking mechanism is arranged in the middle of the clamping mechanism.

2. A heat dissipation tool for cylindrical battery testing as claimed in claim 1, characterized in that: The clamping mechanism comprises a clamping base block (1) and a clamping groove (2), wherein the clamping base block (1) is provided with two groups, and the two groups of the clamping base blocks (1) are symmetrically arranged; and the clamping groove (2) is provided with two groups, and the two groups of the clamping grooves (2) are respectively arranged on opposite sides of the two groups of the clamping base blocks (1) and penetrate the clamping base blocks (1).

3. A heat dissipation tool for cylindrical battery testing as claimed in claim 2, characterized in that: The clamping groove (2) is a semicircular through groove structure, and two groups of the clamping grooves (2) are relatively assembled to form a cylindrical clamping groove corresponding to the cylindrical battery, and the end of the clamping groove (2) is provided with an inwardly concave chamfered structure.

4. A heat dissipation tool for cylindrical battery testing as claimed in claim 3, characterized in that: The heat dissipation mechanism comprises a heat dissipation substrate (3) and a heat dissipation block (4); the heat dissipation substrate (3) is arranged on a side of the clamping base block (1) away from the clamping groove (2) and is fixedly connected to the clamping base block (1) by bolts; the heat dissipation substrate (3) and the clamping base block (1) are arranged in close contact with each other; the heat dissipation blocks (4) are provided in a plurality of groups; and the plurality of groups of heat dissipation blocks (4) are arranged in an array on a side of the heat dissipation substrate (3) away from the clamping base block (1).

5. A heat dissipation tool for cylindrical battery testing as claimed in claim 4, characterized in that: Two groups of heat dissipation mechanisms are provided, and the two groups of heat dissipation mechanisms are symmetrically assembled on the sides of the two groups of clamping base blocks (1) that are away from each other.

6. A heat dissipation tool for cylindrical battery testing as claimed in claim 5, characterized in that: The locking mechanism comprises a locking base (5), a locking wrench (6), a locking buckle (7) and a locking hook (8); the locking base (5) is arranged on one side of one group of the clamping base blocks (1) and is fixedly connected to the clamping base blocks (1) by screws; the locking wrench (6) is arranged on a side of the locking base (5) away from the clamping base blocks (1) and is rotatably connected to the locking base (5) by a rotating shaft; the locking buckle (7) is arranged on one side of the other group of the clamping base blocks (1) corresponding to the locking base (5) and is fixedly connected to the clamping base blocks (1) by screws; the locking hook (8) is arranged in the middle of the locking wrench (6) and is rotatably connected to the locking wrench (6) by a rotating shaft; and the end of the locking hook (8) away from the locking wrench (6) is hooked to the locking buckle (7).

7. A heat dissipation tool for cylindrical battery testing as claimed in claim 6, characterized in that: A side of the locking buckle (7) away from the locking base (5) is provided with a hanging groove corresponding to the locking hook (8), and the locking hook (8) is hung with the locking buckle (7) through the hanging groove.

8. A heat dissipation tool for cylindrical battery testing as claimed in claim 7, characterized in that: Two groups of locking mechanisms are provided, and the two groups of locking mechanisms are symmetrically arranged on both sides of the two groups of clamping base blocks (1) and located at the connection between the two groups of clamping base blocks (1).

9. A heat dissipation tool for cylindrical battery testing as claimed in claim 8, characterized in that: The invention also comprises a limiting component, which comprises a limiting base block (9) and a limiting screw (10). The limiting base block (9) is arranged on one side of one group of the clamping base blocks (1) and is fixedly connected to the clamping base block (1). One side of the limiting base block (9) is arranged in close contact with the clamping base block (1). Two groups of the limiting screws (10) are arranged side by side at intervals at the connection between the limiting base block (9) and the clamping base block (1) and penetrate the limiting base block (9) and are threadedly connected to the clamping base block (1). The limiting base block (9) is fixedly connected to the clamping base block (1) via the limiting screw (10).

10. A heat dissipation tool for cylindrical battery testing as claimed in claim 9, characterized in that: It also comprises an avoidance groove, which is arranged on the side of one group of the clamping base blocks (1) corresponding to the limiting base block (9) and passes through the clamping base block (1), and the limiting base block (9) is located at the avoidance groove.

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