Power battery pack
A power battery pack and battery technology, applied to battery pack components, power devices, secondary batteries, etc., can solve problems such as inability to charge, low temperature, poor heat dissipation of power batteries, etc., and achieve good performance
Active Publication Date: 2018-10-02
兰州广通新能源汽车有限公司 +1
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- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] In view of the above-mentioned current state of the art, the technical problem to be solved by the present invention is to provide a power battery pack to solve the problems caused by poor heat dissipation or low temperature of the power batteries used in electric vehicles, electric buses and electric buses. Charging and discharging problems, and convenient battery packs
Method used
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[0032] The present invention will be described in detail below with reference to the accompanying drawings and examples. It should be noted that, in the case of no conflict, the following embodiments and features in the embodiments can be combined with each other.
[0033] Such as Figure 1-3 As shown, the power battery pack (20) in one of the embodiments of the present invention includes several battery modules 10, a front panel 21, a back panel 22, a top panel 23, forced ventilation heat dissipation and a battery pack heating device, a total positive metal plate 27 and The total negative metal plate 28 and several battery modules 10 are stacked together and fixed by three metal binding strips 30 .
[0034] Such as Figure 4-9 As shown, the battery module 10 is mainly composed of a casing assembly 11, a soft-pack lithium-ion battery 12 and two heat exchange systems 16, wherein the casing assembly 11 is fastened together by a first casing 111 and a second casing 112, and pas...
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The invention discloses a power battery pack, comprising: several battery modules stacked together, the battery module includes a shell assembly, a soft-packed lithium-ion battery and a heat exchange system, the shell assembly has a battery accommodation chamber and an air duct unit, several The air duct units of the battery module are connected to each other to form an air duct; the soft-packed lithium-ion battery is installed in the battery chamber; the heat exchange system includes heat collecting plates, heat pipes and fins, the heat collecting plates are installed in the battery housing chamber of the shell assembly, and the heat pipes Fixed on the heat collecting plate, and the heat pipe has a first section extending beyond the heat collecting plate, and the fins are installed on the first section; the fan, the fan is used to make the air flow in the air duct; and the heating device, used for the heating device for the air in the heating duct. The battery module of the power battery pack of the present invention solves the problem that the current power batteries used in electric vehicles, electric buses and electric buses cannot be charged or discharged due to poor heat dissipation or low temperature.
Description
technical field [0001] The invention relates to the technical field of batteries, in particular to a power battery pack. Background technique [0002] The battery packs of existing power batteries basically use single cells to be directly connected, or add a protective shell. The heat dissipation rate depends on the heat conduction rate of the battery's protective material. If a pure plastic battery shell is used, it will be difficult for the heat to dissipate from the battery body At the same time, the temperature of the tabs of the battery rises sharply due to the increase of the charge and discharge rate, causing the adhesive plastic between the tabs of the battery and the aluminum-plastic film of the battery to melt, causing the battery to leak, and the risk of battery failure or fire. Using modular batteries with metal casings, the weight of the battery box will be very heavy, which does not have the advantages of practical use, and the metal casing will easily cause a ...
Claims
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IPC IPC(8): H01M10/613H01M10/615H01M10/625H01M10/6551H01M10/6552H01M10/6554H01M10/6557H01M10/6563H01M2/10H01M50/204H01M50/24H01M50/244
CPCB60K2001/005H01M50/20Y02E60/10
Inventor 徐德雷蔡惠群李海军詹世英魏银仓
Owner 兰州广通新能源汽车有限公司