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Power battery protection plate and power battery protection system

A power battery and protection board technology, applied in battery circuit devices, safety/protection circuits, emergency protection circuit devices, etc., can solve problems such as high cost and complex hardware structure

Pending Publication Date: 2021-04-30
河南省鹏辉电源有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a power battery protection board and a power battery protection system, so as to alleviate the technical problems of complex hardware structure and high cost in the power battery system in the prior art

Method used

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  • Power battery protection plate and power battery protection system
  • Power battery protection plate and power battery protection system
  • Power battery protection plate and power battery protection system

Examples

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Embodiment 1

[0028] figure 1 A schematic structural diagram of a power battery protection board provided for an embodiment of the present invention, as shown in figure 1 As shown, the power battery protection board includes: a central processing unit 10 , a battery protection chip 20 , a discharge switch tube 30 and a charge switch tube 40 .

[0029] The central processing unit 10 is connected with the battery protection chip 20; the battery protection chip 20 is also respectively connected with the state detection terminal of the battery module 50, the first end of the discharge switch tube 30 and the first end of the charge switch tube 40; the discharge switch The second end of the tube 30 is connected to the negative pole of the battery module 50, the third end of the discharge switch tube 30 is connected to the second end of the charge switch tube 40, and the third end of the charge switch tube 40 is connected to the first end of the load 60. The positive terminal of the battery modul...

Embodiment 2

[0090] The embodiment of the present invention also provides a power battery protection system. The power battery protection system includes any power battery protection board in the first embodiment above, and further includes: a battery module 50 and a vehicle low-voltage power supply module 100 .

[0091] The power battery protection board is respectively connected with the battery module 50 and the vehicle low-voltage power supply module 100 .

[0092] The vehicle low-voltage power supply module 100 is used to step down the voltage output by the power battery protection board to provide low-voltage working power for the vehicle.

[0093] It should be noted that like numerals and letters denote similar items in the following figures, therefore, once an item is defined in one figure, it does not require further definition and explanation in subsequent figures.

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PUM

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Abstract

The invention provides a power battery protection plate and a power battery protection system, and relates to the technical field of power batteries, the power battery protection plate comprises a central processing unit, a battery protection chip, a discharge switch tube and a charge switch tube; according to the power battery protection plate provided by the invention, on the basis of the battery state information acquired by the battery protection chip, the central processing unit can flexibly control the on-off of the charging switch tube and / or the discharging switch tube by sending the control instruction so as to protect the battery module. The charging switch tube and the discharging switch tube are connected in series on the same line, so that the power battery protection board not only realizes that charging and discharging share the same interface and simplifies the hardware structure of the power battery protection board, but also saves the hardware cost by replacing the function of a relay in a traditional power battery system with the switch tubes, The technical problems that a power battery system in the prior art is complex in hardware structure and high in cost are effectively solved.

Description

technical field [0001] The invention relates to the technical field of power batteries, in particular to a power battery protection board and a power battery protection system. Background technique [0002] With the country's emphasis on environmental protection and support for new energy policies, the manufacturing technology of power batteries is becoming more and more mature, and electric vehicles have the strength to compete with traditional fuel vehicles. More and more electric passenger vehicles, electric logistics vehicles, electric buses, and electric low-speed vehicles appear in our lives. With the development of power battery PACK technology, the cost requirements for the power battery system are getting higher and higher. In the existing power battery system, relays are used to control the on-off of the power battery charging and discharging circuit, and the charging and discharging interfaces are different. The structure is complicated and the cost is high. Co...

Claims

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Application Information

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IPC IPC(8): B60L3/00B60L3/04H01M10/42H02H7/18H02J7/00H02J9/06
CPCB60L3/0046B60L3/04H01M10/42H01M10/4285H02H7/18H02J7/0029H02J7/0068H02J9/068H02J2207/30Y02E60/10
Inventor 黄森朱聪黎文温海龙丁永华郭军
Owner 河南省鹏辉电源有限公司
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