Copper bar protective cap, battery module and automobile thereof

Abstract

The copper bar protective cap comprises a cap cover, a protective cavity with an opening facing the outer side is formed in one face of the cap cover, a cap hoop part is arranged at the bottom of the cap cover, a hoop groove communicated with the protective cavity is formed in the face, close to the protective cavity, of the cap hoop part, and a copper bar is arranged in the hoop groove. A hoop strip is arranged at the position, located at the bottom of the hoop groove, of the cap hoop part, and a hoop opening is formed between the hoop strip and the hoop groove; the cap hoop part is inserted into the copper bar connecting part through the hoop opening, the copper bar connecting part is slowly inserted into the hoop groove box protection cavity until the copper bar connecting part abuts against the top of the protection cavity, at the moment, the hoop strip surrounds the bottom of the copper bar connecting part, the cap cover is stably installed on the copper bar connecting part, and displacement of the copper bar is limited through the protection cavity. The problem of loosening and friction at the joint of the copper bars is avoided, and the joint of the copper bars and the joint of the adjacent copper bars can be electrically isolated through the caps, so that the insulation effect of the battery module is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of protective caps, and particularly relates to a copper bar protective cap, a battery module and an automobile thereof. Background Art

[0002] At present, the battery modules of new energy vehicles are mainly connected in series by flexible copper bars. However, during the assembly process of the battery module, when the connection of the copper bars becomes loose, the contact resistance between the copper bars will increase. The increase in resistance will inevitably lead to an increase in the heat generation of the copper bars under the conditions of the same time and the same current, and in severe cases, it may cause the copper bars to melt.

[0003] It can be seen that the existing technology still needs to be improved. Summary of the Utility Model

[0004] In view of the deficiencies of the above-mentioned existing technology, the purpose of the present utility model is to provide a copper bar protective cap, which can be sleeved on the connection part at the end of the copper bar to prevent the problem of looseness between the copper bars.

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

[0006] A copper bar protective cap includes a cap. One side of the cap is provided with a protective cavity opening outward, the bottom of the cap is provided with a cap hoop part, one side of the cap hoop part close to the protective cavity is provided with a hoop groove communicating with the protective cavity, and a hoop strip is arranged at the bottom of the cap hoop part in the hoop groove. A hoop opening is formed between the hoop strip and the hoop groove.

[0007] In the copper bar protective cap, a first convex part is arranged on the side of the cap away from the protective cavity, and a first exhaust groove is formed between the first convex part and the protective cavity.

[0008] In the copper bar protective cap, a second convex part is arranged on the side of the cap hoop part away from the protective cavity, a second exhaust groove is formed between the second convex part and the hoop groove, and the first exhaust groove communicates with the second exhaust groove.

[0009] In the copper bar protective cap, the top of the cap is arc-shaped.

[0010] In the copper bar protective cap, the thickness of the hoop strip and the bottom of the cap hoop part is greater than the thickness of the cap.

[0011] In the copper bar protective cap, the protective cavity and the hoop groove are connected by a supporting wall.

[0012] The present utility model also provides a battery module, which includes the copper bar protective cap as described above.

[0013] The present utility model also provides an automobile, which includes the copper busbar protective cap as described above.

[0014] Beneficial effects:

[0015] The present utility model provides a copper busbar protective cap. Through the opening of the hoop, the hoop part is inserted into the connection part of the copper busbar. The connection part of the copper busbar is slowly inserted into the protective cavity of the hoop groove box until the connection part of the copper busbar abuts against the top of the protective cavity. At this time, the hoop strip will surround the bottom of the connection part of the copper busbar, so that the cap is stably installed on the connection part of the copper busbar. The protective cavity is used to limit the displacement of the copper busbar, avoiding the problem of loosening and friction at the connection part of the copper busbar. And through the cap, the connection part of the copper busbar can be electrically isolated from the adjacent connection parts of the copper busbar, effectively improving the insulation effect of the battery module. Description of the drawings

[0016] Figure 1 is a schematic diagram of the overall structure of the copper busbar protective cap provided by the present utility model Figure One ;

[0017] Figure 2 is a schematic diagram of the overall structure of the copper busbar protective cap provided by the present utility model Figure Two ;

[0018] Figure 3 is a schematic diagram of the overall structure of the copper busbar protective cap provided by the present utility model Figure Three ;

[0019] Figure 4 is a schematic diagram of the overall structure of the copper busbar protective cap provided by the present utility model Figure Four 。

[0020] Main element symbol description: 1 - cap, 2 - protective cavity, 3 - hoop part, 4 - hoop groove, 5 - hoop strip, 6 - hoop opening, 7 - first protrusion, 8 - second protrusion, 9 - supporting wall. Specific embodiments

[0021] The present utility model provides a copper busbar protective cap, a battery module and an automobile thereof. To make the purpose, technical solution and effects of the present utility model clearer and more definite, the following further describes the present utility model in detail with reference to the accompanying drawings and by way of examples. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0022] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "middle part", "inner side", "outer side", etc. is the orientation or positional relationship of the present utility model based on the drawings, which is only for the convenience of describing the present utility model and simplifying the description. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features.

[0023] Please refer to Figures 1 to 4 Figures 1 to 4 , the utility model provides a copper bar protective cap, including a cap 1. One side of the cap 1 is provided with a protective cavity 2 opening outward. The bottom of the cap 1 is provided with a cap hoop part 3. One side of the cap hoop part 3 close to the protective cavity 2 is provided with a hoop groove 4 communicating with the protective cavity 2. The cap hoop part 3 is provided with a hoop strip 5 at the bottom of the hoop groove 4. A hoop opening 6 is formed between the hoop strip 5 and the hoop groove 4.

[0024] During actual use, through the hoop opening 6, the cap hoop part 3 is inserted into the copper bar connection. The copper bar connection is slowly inserted into the hoop groove 4 and the protective cavity 2 until the copper bar connection abuts against the top of the protective cavity 2. At this time, the hoop strip 5 will surround the bottom of the copper bar connection, so that the cap 1 is firmly installed on the copper bar connection. The protective cavity 2 is used to limit the displacement of the copper bar, avoiding the problem of loosening and friction at the copper bar connection. And through the cap 1, the copper bar connection can be electrically isolated from adjacent copper bar connections, effectively improving the insulation effect of the battery module.

[0025] It should be noted that the cap 1, the cap hoop part 3 and the hoop strip 5 can be made of existing insulating materials such as polyvinyl chloride, silica gel, rubber, etc.

[0026] As Figures 1 to 4 shown, further, a first convex part 7 is provided on the side of the cap 1 away from the protective cavity 2. A first exhaust groove (not shown in the figure) is formed between the first convex part 7 and the protective cavity 2; by providing the first convex part 7, it is convenient for the copper bar connection to exhaust air, and the heat of the copper bar connection is discharged through the first exhaust groove, avoiding the problem of overheating at the copper bar connection.

[0027] As Figures 1 to 4 shown, further, a second convex part 8 is provided on the side of the cap hoop part 3 away from the protective cavity 2. A second exhaust groove (not shown in the figure) is formed between the second convex part 8 and the hoop groove 4, and the first exhaust groove is communicated with the second exhaust groove; by providing the second convex part 8, it is convenient for the copper bar connection to exhaust air. A heat dissipation and exhaust channel is formed between the second exhaust groove and the first exhaust groove, so that the heat of the copper bar connection can be released along the path of the heat dissipation and exhaust channel, avoiding the problem of overheating at the copper bar connection.

[0028] As Figures 1 to 4 shown, further, the top of the cap 1 is arc-shaped; by setting the top of the cap 1 to be arc-shaped, the protective cavity 2 can be more closely attached to the top of the copper bar connection, improving the firmness of the cap 1 during installation.

[0029] As Figures 1 to 4As shown, further, the thickness of the hoop strip 5 and the bottom of the cap hoop portion 3 is greater than the thickness of the cap 1; by increasing the thickness of the hoop strip 5 and the bottom of the cap hoop portion 3, the installation strength and firmness at the connection between the cap hoop portion 3 and the copper busbar can be improved, effectively avoiding the problem of looseness at the connection of the copper busbar.

[0030] During production, the whole cap is formed by split pre-embedded dip molding. Among them, the cap hoop portion and the hoop strip are formed by secondary dip molding, thereby increasing the overall thickness of the cap hoop portion and the hoop strip, effectively improving the overall strength and installation firmness of the two, and avoiding the problem of looseness between the connection with the copper busbar during installation.

[0031] As Figures 1 to 4 As shown, further, the protection cavity 2 and the hoop groove 4 are connected by a supporting wall 9; by providing the supporting wall 9, a certain supporting effect can be exerted on the connection of the copper busbar, and it can be fitted with the connector on the connection of the copper busbar, effectively improving the installation firmness of the cap 1.

[0032] The present invention also provides a battery module, which includes the copper busbar protection cap as described above.

[0033] The present invention also provides a vehicle, which includes the copper busbar protection cap as described above.

[0034] In summary, through the hoop opening 6, the cap hoop portion 3 is inserted into the connection of the copper busbar. The connection of the copper busbar is slowly inserted into the hoop groove 4 and the protection cavity 2 until the connection of the copper busbar abuts against the top of the protection cavity 2. At this time, the hoop strip 5 will surround the bottom of the connection of the copper busbar, so that the cap 1 is stably installed on the connection of the copper busbar. The protection cavity 2 is used to limit the displacement of the copper busbar, avoiding the problem of loose friction at the connection of the copper busbar, and through the cap 1, the connection of the copper busbar can be electrically isolated from the adjacent connection of the copper busbar, effectively improving the insulation effect of the battery module.

[0035] It can be understood that for those of ordinary skill in the art, equivalent substitutions or changes can be made according to the technical solutions and the inventive concept of the present invention, and all such changes or substitutions should fall within the protection scope of the appended claims of the present invention.

Claims

1. A copper busbar protective cap, characterized in that: It includes a cap, one side of which is provided with a protective cavity opening toward the outside, the bottom of which is provided with a cap hoop portion, a side of which close to the protective cavity is provided with a clamping groove communicating with the protective cavity, the cap hoop portion is provided with a clamping bar at the bottom of the clamping groove, and a clamping opening is formed between the clamping bar and the clamping groove.

2. A copper busbar protective cap according to claim 1, characterized in that: A first protrusion is disposed on a side of the cap away from the protective cavity, and a first exhaust groove is formed between the first protrusion and the protective cavity.

3. A copper busbar protective cap according to claim 2, characterized in that: A second protrusion is provided on one side of the cap hoop away from the protective cavity, a second exhaust groove is formed between the second protrusion and the clamp groove, and the first exhaust groove is connected to the second exhaust groove.

4. The copper busbar protective cap according to claim 1, characterized in that: The top of the cap is in an arc shape.

5. The copper busbar protective cap according to claim 1, characterized in that: The thickness of the hoop bar and the bottom of the cap hoop portion is greater than the thickness of the cap.

6. The copper busbar protective cap according to claim 1, characterized in that: The protection cavity and the clamp groove are connected via a supporting wall.

7. A battery module, characterized in that: It comprises a copper busbar protective cap as described in any one of claims 1 to 6.

8. A car, characterized in that: It comprises a copper busbar protective cap as described in any one of claims 1 to 6.

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