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Power battery charging protection device

A charging protection, power battery technology, applied in battery circuit devices, circuit devices, current collectors, etc., can solve problems such as charging sockets with high voltage and charging

Active Publication Date: 2013-09-11
WEICHAI POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] The technical problem to be solved by the present invention is to provide a power battery charging protection device to solve the problem of live start when the power battery is charging and the charging socket is charged with high voltage after the power is cut off.

Method used

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Embodiment Construction

[0029] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0030] refer to image 3 , showing a schematic diagram of an embodiment of a power battery charging device of the present invention, including a pre-charging control relay 101, a main motor control relay 102, a charging control relay 103 and a charging protection relay 104, a pre-charging control relay 101 and a main motor control relay 102 is connected to the normal fire power supply 105, the charging control relay 103 and the charging protection relay 104 are connected to the low-voltage storage battery charging power supply 106, and the charging protection relay 104 is used to control the coils of the pre-charging control relay 101 and the main motor control relay 102 in the charging state. power off state. Wherein, the normal...

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Abstract

The invention provides a power battery charging protection device comprising a pre-charging control relay, a main motor control relay, a charging control relay and a charging protection relay. The pre-charging control relay and the main motor control relay are connected to a normalizing power supply. The charging control relay and the charging protection relay are connected to a low-voltage storage battery charging power supply. The charging protection relay is used for control coils of the pre-charging control relay and the main motor control relay to be in outage in a charging state. By the aid of the power battery charging protection device, the problems that a hybrid electric vehicle is started with electricity during charging and a charging socket carries high-voltage in outage can be solved.

Description

technical field [0001] The invention relates to a battery charging protection device, in particular to a power battery charging protection device in a hybrid vehicle. Background technique [0002] The automobile industry is a pillar industry of a country. The needs of the environment and energy urgently require the automobile industry to reduce its dependence on and use of fossil energy. Currently, the types of vehicles using alternative energy include pure electric vehicles, hybrid vehicles and fuel cell vehicles. Among them, hybrid vehicles make comprehensive use of the technical advantages of traditional fuel vehicles and pure electric vehicles. On the one hand, they can save more fuel than traditional fuel vehicles, and on the other hand, they can travel much longer than pure electric vehicles. [0003] There are two types of batteries used in hybrid vehicles, one is a high-voltage battery, that is, a power battery, which provides power for the vehicle, such as a drive m...

Claims

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Application Information

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IPC IPC(8): B60L11/18H02J7/00
CPCY02T10/70
Inventor 韩尔樑潘凤文银铭强孙磊刘焕东
Owner WEICHAI POWER CO LTD
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