a battery pack

A battery pack, battery technology, applied in secondary batteries, battery pack components, circuits, etc., can solve the problems of uneven battery temperature, different battery cooling power, large air flow, etc., to improve life and improve service life , the effect of uniform temperature field

Active Publication Date: 2016-01-20
湖南科霸汽车动力电池有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the mounting bracket used by the battery pack is composed of two shells. Except for the ventilation holes opened on the shell for air circulation, the rest are all non-ventilated structures. This kind of battery pack has the problem of large temperature difference between the batteries. The main reason is that the speed of air in the battery pack is not uniform, resulting in large or small local air flow, which leads to different heat dissipation power at different parts of the battery surface, and then produces uneven temperature between batteries or different parts of the battery

Method used

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Examples

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Effect test

Embodiment 1

[0017] A battery pack, such as figure 1 As shown, it includes a casing 1, eight battery packs 2, a battery pack mounting bracket 3, and a fan 4. The battery pack 2 is composed of six single batteries connected in series, and the positive and negative ends of the eight battery packs 2 are connected in series using connecting pieces 8 Connected and fixed on the housing 1 by bolts 9; figure 2 As shown, the battery pack mounting bracket 3 has eight channels 5 and the channels 5 are arranged in two rows parallel and symmetrically. The casing 1 has an air inlet 6 at the end close to the fan 4, and the casing 1 has an end away from the fan 4. There is an air outlet 7; image 3 As shown, a set of battery packs 2 are placed in each channel 5, and the positive and negative ends of the battery pack 2 are left at the channel opening. The battery holder 3 is made of porous metal material.

[0018] When the battery pack of the present invention is used, because the battery pack mounting brack...

Embodiment 2

[0020] A battery pack whose structure is similar to the battery pack of Embodiment 1, except that the number of battery packs is ten groups, and the battery pack mounting bracket has ten channels and the channels are arranged in two rows parallel and offset. The battery holder is made of porous polymer material.

[0021] During the use of the battery pack, the actual measured temperature difference of the battery pack is 38% lower than that of the existing battery pack.

Embodiment 3

[0023] A battery pack whose structure is similar to the battery pack of embodiment 1, except that it includes twelve battery packs 2 and three battery pack mounting brackets 3. Each battery pack mounting bracket 3 has ten There are two channels 5 and the channels are distributed in parallel and symmetrically in three rows up and down, and the positions of the channels on each battery pack mounting bracket are exactly the same. Such as Figure 4 As shown, the battery pack mounting brackets 3 are arranged in parallel along the longitudinal direction of the battery pack 2 and each channel 5 that maintains the same position on each battery pack mounting bracket corresponds to a channel row 10 one by one, and a group of battery packs is placed in each row of channel row 10 2. The battery holder is made of porous polymer material.

[0024] During the use of the battery pack, the actual measured temperature difference of the battery pack is 32% lower than that of the existing battery ...

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PUM

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Abstract

The invention provides a battery pack, which includes a casing, several sets of battery packs, a battery pack placement bracket, and an airflow feeding device. An air inlet is opened on the side of the casing close to the airflow feeding device, and the casing is far away from the airflow feeding device. There is an air outlet at one end of the inlet device; the battery packs are connected and fixed in series; there are several channels on the battery pack placement bracket, and the number of channels is the same as the number of battery packs; a set of battery packs is placed in each channel The battery pack, at least the positive and negative terminals of the battery pack are left at the channel opening; the battery pack placement bracket is made of porous metal material or porous polymer material. The battery pack in the present invention adopts the through hole of the battery pack mounting bracket to facilitate battery placement and removal; the battery pack mounting bracket is made of porous material, which can form air flow channels around the battery pack, which is beneficial to reduce the temperature difference of the battery.

Description

Technical field [0001] The invention relates to a battery pack. Background technique [0002] At present, the mounting bracket used by the battery pack is composed of two shells. Except for the ventilation holes opened on the shell for air circulation, the rest are all non-ventilated structures. This kind of battery pack has the problem of large temperature difference between the batteries. The main reason is that the air flow in the battery pack has uneven speed, causing local air flow to be larger or smaller, resulting in different heat dissipation power at different parts of the battery surface, and thus uneven temperature between batteries or different parts of the battery. Summary of the invention [0003] The present invention aims to provide a battery pack which is favorable for air circulation and has low battery temperature difference. The present invention is realized through the following schemes: [0004] A battery pack includes a casing, a plurality of battery packs, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M2/10H01M10/613H01M10/6561H01M50/24H01M50/242H01M50/244
CPCH01M50/20Y02E60/10
Inventor 刘丹张洪涛石建珍
Owner 湖南科霸汽车动力电池有限责任公司
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