Power battery thermal management device and thermal management method
A power battery and heat management technology, applied in the direction of battery, secondary battery, secondary battery repair/maintenance, etc., can solve problems such as smoke, fire and explosion, thermal runaway of battery modules, poor safety, etc., to prolong the service life , improve performance, improve the effect of security
Active Publication Date: 2018-10-09
CHAOWEI POWER CO LTD
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Problems solved by technology
[0003] The purpose of the present invention is to overcome the shortcomings of current power batteries that are prone to thermal runaway due to the inconsistency of battery modules, and accidents such as smoke, fire, and explosion in severe cases, and poor safety when used for a long time. A power battery thermal management device and thermal management method capable of controlling the temperature of the battery module and having better safety
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[0015] The present invention will be further described below with reference to the drawings.
[0016] As attached figure 1 Shown: a power battery thermal management device, including: a battery box 1, a power battery 2 composed of six battery modules 21 installed in the battery box 1, a temperature sensor 3 arranged outside the battery module 21, and a magnetic material ring 4. Magnetic material ring rotating device 5, electromagnet 6 and cooling device 7, controller 8 arranged outside the battery box 1; a through hole 11 is provided on one side of the battery box 1; the magnetic material ring 4 is located in the battery box 1 and is magnetic One side of the material ring 4 extends out of the battery box 1 through the through hole 11; the upper end of the electromagnet 6 is opposite to the side of the magnetic material ring 4 that extends out of the battery box 1.
[0017] The magnetic material ring 4 includes an outer ring 41, a magnetic material 43 composed of bead-shaped magnet...
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The invention relates to the field of power batteries and aims to provide a power battery heat management device and a heat management method. The power battery heat management device comprises a battery box, a power battery mounted in the battery box and formed by a plurality of battery modules, a temperature sensor, a magnetic material ring, a magnetic material ring rotating device, an electromagnet, a cooling device and a controller, the temperature sensor, the magnetic material ring and the magnetic material ring rotating device are arranged on the outer sides of the battery modules, and the electromagnet, the cooling device and the controller are arranged outside the battery box; a through hole is formed in one side of the battery box, the magnetic material ring is positioned in the battery box, one side of the magnetic material ring penetrates the through hole to extend outside the battery box, the electromagnet is opposite to one side, extending outside the battery box, of the magnetic material ring, and the both the temperature sensor and the electromagnet are electrically connected with the controller. The power battery heat management device can control temperature of the battery modules and is high in safety.
Description
Technical field [0001] The invention relates to the field of power batteries, in particular to a power battery thermal management device and thermal management method. Background technique [0002] The battery is a key component of an electric vehicle, and its performance directly determines the performance of the vehicle. At present, the voltage and capacity of electric vehicles are relatively high. The power battery is composed of multiple battery modules in series and parallel. The battery modules generate a lot of heat during charging and discharging. The heat continues to accumulate and superimpose, which makes the temperature rise sharply. The uneven heat release of the battery leads to a temperature difference in the battery. If the battery module is used for a long time, the inconsistency of the battery module will cause thermal runaway. In severe cases, there will be problems such as smoke, fire and explosion. Therefore, a design that can control the battery module Ther...
Claims
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IPC IPC(8): H01M10/42H01M10/48H01M10/613H01M10/625H01M10/653
CPCH01M10/42H01M10/486H01M10/613H01M10/625H01M10/653H01M2220/20Y02E60/10
Inventor 余涛柯克潘耀强马桔华章文俊
Owner CHAOWEI POWER CO LTD