Light power battery pack
A technology for power battery packs and battery packs, applied to battery pack components, batteries, secondary batteries, etc., can solve problems such as low charging and discharging efficiency, heat dissipation problems, and affecting normal operation, so as to avoid local high temperature and reduce heat Dissipated effect
Active Publication Date: 2021-05-18
广西华政新能源科技有限公司
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- Description
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Problems solved by technology
When the light power battery pack is at low temperature, it will seriously affect its normal operation, the charge and discharge efficiency is low, and more seriously, it will cause irreversible attenuation of the battery capacity. Therefore, it is very important to ensure that the light power battery pack operates at a suitable temperature
Another problem, although not as serious as the low temperature hazard, is also a problem that continues to occur and exists during the operation of the battery pack, that is, the heat dissipation problem is contradictory to the low temperature, but it is also a problem that has to be solved
Method used
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[0039] The present invention will be further described in detail below in conjunction with the accompanying drawings, so that those skilled in the art can implement it with reference to the description.
[0040] It should be noted that, in the description of the present invention, the orientation or positional relationship indicated by the term is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply Any device or element must have a specific orientation, be constructed and operate in a specific orientation and therefore should not be construed as limiting the invention.
[0041] Such as Figure 1~3 As shown, the present invention provides a light-duty power battery pack, including a battery pack 1 composed of a plurality of batteries, including:
[0042] Housing 2, which is provided with a first heat shield 23 to separate ...
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The invention discloses a light-duty power battery pack, which comprises: a shell, which is provided with a first heat insulation plate to separate the shell into a battery chamber and a control chamber, and the battery pack is arranged in the battery chamber; a first heat insulation layer, which is laid on On the bottom of the battery cavity and on the side walls except for the first heat insulation board; multiple heating plates are arranged at intervals around the outer circumference of the battery pack, and exhaust fans are arranged between two adjacent heating plates; multiple exhaust fans are arranged at intervals On the side walls other than the first heat insulation board, heat dissipation fins are provided on the side walls between two adjacent exhaust fans; multiple heat preservation units are respectively covered on multiple exhaust fans; ambient temperature sensors; The battery temperature sensor; the control chip, which controls the heating plate, the exhaust fan, the exhaust fan, and the motor to start and stop according to the detected temperature according to the preset program; the auxiliary power supply. The invention has the beneficial effects of uniformly heating the battery pack at low temperature, timely and rapidly cooling the battery pack at high temperature, and making the battery pack run within a suitable temperature range.
Description
technical field [0001] The invention relates to the field of battery application. More specifically, the present invention relates to a lightweight power battery pack. Background technique [0002] Light-duty power battery packs are mainly used for two-wheel and three-wheel electric vehicles, and their rated voltage is usually 36V, 48V, 72V, etc. The driving speed is much lower than that of cars, and the battery life is also much shorter. At present, in urban traffic, it plays an important transfer role. When the light-duty power battery pack is at low temperature, it will seriously affect its normal operation, the charging and discharging efficiency is low, and more seriously, it will cause irreversible attenuation of the battery capacity. Therefore, it is very important to ensure that the light-duty power battery pack operates at a suitable temperature . And another problem, although not as serious as low temperature, is also a problem that continues to occur and exists...
Claims
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IPC IPC(8): H01M10/613H01M10/615H01M10/617H01M10/625H01M10/635H01M10/6554H01M10/6563H01M10/6565H01M10/658H01M50/258H01M50/249H01M50/244H01M50/204
CPCH01M2220/20H01M10/613H01M10/615H01M10/617H01M10/625H01M10/635H01M10/6554H01M10/6563H01M10/6565H01M10/658Y02E60/10
Inventor 陆何萍
Owner 广西华政新能源科技有限公司