Power battery pack assembly suitable for new energy electric vehicle

Abstract

The invention discloses a power battery pack assembly suitable for a new energy electric vehicle, and relates to the technical field of new energy automobiles, the power battery pack assembly comprises a box body, a partition plate and a box cover, a storage battery pack composed of a plurality of storage batteries is arranged in the box body, and the partition plate is detachably installed in the box body; the partition plate divides an inner cavity of the box body into a first containing space and a second containing space, the storage batteries are arranged in the first containing space and the second containing space respectively, a conveying air duct communicated with the outside is formed in the inner cavity of the partition plate, and a plurality of air holes communicated with the inner cavity of the partition plate are machined in the side walls of the two sides of the partition plate. The box cover is detachably installed on the box body. The partition plate is adopted to be matched with the inner cavity of the air inducing table to serve as a conveying air duct to guarantee that cold air can be conveyed into the whole box body; internal cooling is conducted, the relatively uniform heat dissipation effect of the whole storage battery pack is achieved, and the structure is not high in implementation cost, easy to control and produce and small in occupied space.

Description

technical field [0001] The present invention relates to the technical field of new energy vehicles, in particular to the field of new energy power batteries, and specifically relates to a power battery pack assembly suitable for new energy electric vehicles. Background technique [0002] As a key component of an electric vehicle, the power battery has a major impact on the power, economy and safety of the vehicle. However, the current performance and life of the power battery of an electric vehicle are far from meeting the requirements of electric vehicle operation. The reasons mainly include several aspects: for example, the cost of high-performance power batteries is very high, and it is difficult to industrialize; another example is that the battery has been incorrectly operated during use; Multiple batteries are connected in series to provide energy for the car. Due to the non-uniformity of the internal environment of the battery pack, the inconsistency between the singl...

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Problems solved by technology

[0003] Among them, the internal environment of the battery pack mainly refers to the inner cavity of the power battery pack, that is, provided by the power battery pack. Its heat dissipation performance and sealing performance directly determine the service performance and life of the battery. In the prior art, air cooling and water cooling are mainly used. For example, the Chinese invention patent application number 200820045044.6 discloses an integral quick-detachable air-cooled electric vehicle battery pack and the Chinese invention patent application number 201811309033.9 discloses a power battery box and power battery box. The control method of the liquid cooling cycle. Both documents research the heat dissipation performance of the power battery pack, but the heat dissipation performance of the former is not enough. Although the way of opening holes on the edge can achieve the purpose of air heat exchange, because the cold air is not in the case If it is oriented or guided, the heat dissipation effect of the battery in the middle and the battery at the edge will be too different, and local overheating will occur, especially for the case where the battery is densely arranged, it is not an ideal solution; and then Although the heat dissipation effect is uniform and effective, the cost is too high and the installation space of the battery is occupied too much, which is not an ideal way to realize it.

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