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Battery top cover reinforcing structure

A technology to strengthen the structure and top cover, applied in the direction of battery cover/end cover, structural parts, battery pack components, etc., can solve the problems of crushed top cover, damaged cell, exposed cell, etc., to reduce pressure damage risk, facilitate large-scale promotion and use, and enhance the effect of carrying capacity

Pending Publication Date: 2020-06-23
DONGGUAN ALI AUTOMATION CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, according to the failure judgment of the application scenario of the battery cell, since the top cover of the power battery pack is not protected by a module, the top cover will directly bear a certain amount of mechanical pressure from the outside and inside. A bad top cover will expose the battery cells to the external environment, which will easily lead to damage to the battery cells
Limited by the existing top cover design, the existing top cover does not solve the problem of matching the structural strength of the top cover with the complex vehicle environment, which may easily lead to damage of the top cover in daily use and cause safety accidents

Method used

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  • Battery top cover reinforcing structure
  • Battery top cover reinforcing structure
  • Battery top cover reinforcing structure

Examples

Experimental program
Comparison scheme
Effect test

no. 1 example

[0027] see figure 1 and figure 2 As shown, the power battery pack 100 of this embodiment includes a battery body 10, a casing 20 and a battery top cover reinforcement structure, wherein the casing 20 is a hollow structure with an open upper end, and the hollow structure forms a battery for storing the battery body 10. In the warehouse 21, the top cover body 30 is detachably covered on the opening of the housing 20. Preferably, the covering surfaces of the top cover body 30 and the housing 20 respectively form a stepped structure that cooperates with each other, so that the top cover body 30 can The stepped structure is embedded in the cover on the housing 20 , so that the cover is more stable. The specific structure of the battery top cover reinforcement structure of this embodiment will be described in detail below.

[0028] see image 3 and Figure 4 As shown, the battery top cover reinforcement structure of this embodiment includes a top cover body 30, and the top cove...

no. 2 example

[0032] see Figure 5 and Figure 6 As shown, the difference between this embodiment and the first embodiment lies in the reinforcement structure of the battery top cover. The reinforced structure of the battery top cover in this embodiment includes a top cover body 30, the top cover body 30 is provided with an electrode end hole 31, a liquid injection hole 32, an explosion-proof hole 33 and a first rib 34, wherein the first rib 34 protrudes Extending on the front of the top cover body 30, so that the top cover body 30 has a concave-convex structure, thereby having a better bearing capacity, and the distribution position of the first rib 34 avoids the electrode end hole 31, the liquid injection hole 32, and the explosion-proof hole 33 , to prevent the first rib 34 from obstructing the normal use of the electrode port hole 31 , the liquid injection hole 32 , and the explosion-proof hole 33 .

[0033] Specifically, the first reinforcing rib 34 is block-shaped, and covers the fr...

no. 3 example

[0035] see Figure 7 and Figure 8 As shown, the difference between this embodiment and the first embodiment is that the battery top cover reinforcement structure of this embodiment further includes two second reinforcement ribs 35, and the two second reinforcement ribs 35 protrude from the front of the top cover body 30 respectively. Furthermore, the cooperation with the two first ribs 34 enables the top cover body 30 to have a more complex concave-convex structure, thereby having a better bearing capacity. Same as the first reinforcing rib 34, the distribution position of the two second reinforcing ribs 35 avoids the electrode end hole 31, the liquid injection hole 32, the explosion-proof hole 33, and avoids that the second reinforcing rib 35 hinders the electrode terminal hole 31, the liquid injection hole 32, The normal use of explosion-proof hole 33.

[0036] Specifically, the two second reinforcing ribs 35 respectively extend along the short side 37 of the top cover bo...

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Abstract

The invention discloses a battery top cover reinforcing structure, which comprises a top cover body. The top cover body is provided with an explosion-proof hole, a liquid injection hole, an electrodeend hole and first reinforcing ribs, wherein the first reinforcing ribs convexly extend to the front surface of the top cover body, and the distribution position of the first reinforcing ribs avoids the explosion-proof hole, the liquid injection hole and the electrode end hole. According to the battery top cover reinforcing structure, the bearing capacity of the top cover body can be effectively enhanced, and the risk that the top cover body is damaged due to pressure is reduced, so that a battery core is protected from being interfered by an external environment.

Description

technical field [0001] The invention relates to the field of power batteries, in particular to a reinforcement structure for a battery top cover. Background technique [0002] In the prior art, in order to increase the capacity of the single cell of the power battery and reduce the production cost requirements, the power battery pack without modules is usually used, and there are no modules or other separators in the middle, so that it can be implanted in the same space A battery with a larger capacity. However, according to the failure judgment of the application scenario of the battery cell, since the top cover of the power battery pack is not protected by the module, the top cover will directly bear a certain amount of mechanical pressure from the outside and inside. A damaged top cover exposes the battery core to the external environment, which can easily lead to damage to the battery core. Limited by the existing top cover design, the existing top cover does not solve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/04H01M2/36H01M2/12
CPCH01M50/147H01M50/1535H01M50/383H01M50/60Y02E60/10
Inventor 李新宏周春雪曾志春段少伟
Owner DONGGUAN ALI AUTOMATION CO LTD
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