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Battery charging method and device

A charging method and a technology of a charging device, which are applied to secondary battery charging/discharging, secondary battery, battery temperature control, etc., can solve problems such as battery capacity decline and unsatisfactory charging effect, and achieve the effect of increasing charging capacity

Active Publication Date: 2012-05-16
SHENZHEN BAK POWER BATTERY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the power battery system of electric vehicles is in a low-temperature environment, the battery capacity decreases and the charging effect is not ideal. Therefore, how to efficiently charge the battery system in cold weather and give full play to the best performance of the battery has become a problem that needs to be solved.

Method used

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Embodiment Construction

[0015] Such as figure 1 The charging device for a power battery shown includes a vehicle charger 10, a power battery pack composed of a plurality of batteries 20 electrically connected to the charger 10, and a heating device, wherein the heating device includes a battery in contact with the vehicle charger. The first radiator 31, the controller 40 electrically connected to the charger, the temperature sensor connected to the controller, the heating element 50 electrically connected to the controller, the second radiator 32 in contact with the heating element 50, and the controller A plurality of electrically connected fans 61 to 66 . Wherein, the heating element 50 adopts a power resistor, the fans 61 - 62 are located near the vehicle charger 10 and the heating element 50 , and the fans 62 - 66 are located near the battery pack.

[0016] The first radiator 31 and the second radiator 32 are used to conduct the heat emitted by the charger 10 and the heating element 50 . The te...

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PUM

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Abstract

The invention discloses a battery charging method and device. The device comprises an on-board charger, battery packs and a heating device, wherein the heating device comprises a controller connected with the charger, a temperature sensor connected with the controller and a heating element connected with the controller; the temperature sensor is used to sense the temperature of the battery packs, and the heating element is used to heat the battery packs; and the heating device also comprises a fan connected with the controller; air flow passages are formed between the battery packs; and the fan blows the heat of the heating element and the heat of the charger through the air flow passages. The battery charging device uses the heating device to heat batteries before charging; in the charging process, the heat which is generated by the charger in the output process is utilized to heat the batteries and keep the temperature, thus the charging capacity of the batteries can be increased; and the battery charging device is suitable for new energy on-board energy systems.

Description

technical field [0001] The invention relates to a charging method and device for a power battery. Background technique [0002] At present, the new energy vehicle industry is booming, and electric vehicles driven by power batteries meet the requirements of environmental protection and low carbon. Since the power battery system of an electric vehicle is in a low-temperature environment, the battery capacity decreases and the charging effect is not ideal. Therefore, how to efficiently charge the battery system in cold weather and give full play to the best performance of the battery has become a problem that needs to be solved. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a battery charging method and device, which is suitable for vehicle-mounted energy systems with unsatisfactory charging effects in low temperature environments, improves the charging efficiency of power batteries, and solves the problem of elec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/44H01M10/50H01M10/615H01M10/625H01M10/63
CPCY02E60/12Y02E60/10
Inventor 王潘
Owner SHENZHEN BAK POWER BATTERY CO LTD