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Battery pack structure of electric automobile and charging and discharging method of battery pack

A technology for electric vehicles and battery packs, applied in electric vehicle charging technology, secondary battery charging/discharging, electric vehicles, etc. Discharge problems, saving layout space, and reducing safety risks

Inactive Publication Date: 2015-01-28
DONGFENG ELECTRIC VEHICLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It quickly charges the battery pack units of the battery pack at the same time to solve the problem of long charging time for electric vehicles. Several battery pack units jointly provide electric energy, which reduces the requirement for the power of a single battery pack unit and solves safety risks. At the same time, the battery pack unit The charging and discharging process of the battery is independent of each other, avoiding the "short board effect", and reducing the mass production cost required by the high internal consistency requirements of the battery pack

Method used

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  • Battery pack structure of electric automobile and charging and discharging method of battery pack
  • Battery pack structure of electric automobile and charging and discharging method of battery pack
  • Battery pack structure of electric automobile and charging and discharging method of battery pack

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Embodiment Construction

[0019] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.

[0020] The battery pack unit of the present invention can be used in multiple sets as required, and the number is not limited. This embodiment adopts three sets of battery pack units for illustration. Such as figure 1 As shown, the present embodiment includes three parallel output battery pack units 2, which are respectively the first battery pack unit 5, the second battery pack unit 6 and the third battery pack unit 7, wh...

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Abstract

The invention relates to the field of electric automobile, and in particular relates to a battery pack structure of electric automobile and charging and discharging method of battery pack. The electric automobile is provided with at least one low speed charging interface and fast charging interface being corresponding to the number of the battery pack unit, a fast charging switch controlling the battery pack unit for fast charging is formed between each fast charging interface and each battery pack unit, many battery pack units can be charged at the same time and the charging time is shortened. The low speed charging / discharging total switch and low speed charging / discharging switch are formed between the battery pack unit and the low speed charging interface, the low speed charging / discharging total switch and low speed charging / discharging switch control the discharging and low speed charging operation of each battery pack unit, the charging / discharging process of the battery pack units is independent to each other for avoiding cask effect and reducing cost of production needed by higher consistency requirement on the battery pack unit in the battery pack.

Description

technical field [0001] The invention relates to the field of electric vehicles, in particular to a structure of a battery pack of an electric vehicle and a method for charging and discharging the battery pack. Background technique [0002] The advantages of electric vehicles in terms of economy and environmental protection make them become the direction of future development of automobiles, and pure electric vehicles are the ultimate goal of automobile development, but the current pure electric vehicle technology is restricted by the development of battery technology, and there are still many shortcomings . From a technical point of view, these shortcomings can be summarized into two points: one is that the driving range is not long, that is, the specific energy of the battery is not high; the other is that the charging time is long, that is, the high-power charging performance of the energy-type battery is not good. These two shortcomings limit the development of pure elec...

Claims

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Application Information

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IPC IPC(8): H02J7/00H01M10/44
CPCB60L50/64B60L50/66B60L53/11B60L53/16B60L53/60B60L58/19B60L58/21Y02T10/70Y02T10/7072Y02T90/12Y02T90/14
Inventor 黄兆勤夏洋陈银烛刘晓康吴道明刘晓俊龙曦莫维
Owner DONGFENG ELECTRIC VEHICLE
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