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Electricity loss prevention device and electricity loss prevention method of low-voltage storage battery

A low-voltage storage battery and electric device technology, which is applied in electric traction, electric vehicles, transportation and packaging, etc., can solve the problems that the whole vehicle cannot be started normally, and achieve good practicability and economy, convenient operation and simple structure

Active Publication Date: 2014-09-17
BEIJING ELECTRIC VEHICLE
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In view of this, the present invention provides a device and method for preventing power loss of low-voltage batteries, which effectively solves the problem that the whole vehicle cannot be started normally due to power loss of low-voltage batteries after the electric vehicle has been placed on hold for a long time

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  • Electricity loss prevention device and electricity loss prevention method of low-voltage storage battery

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Embodiment Construction

[0030] The technical solutions of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0031] Such as figure 1 The anti-loss device for a low-voltage battery includes a low-voltage battery module mounted on the vehicle. The low-voltage battery module is connected to a protection board. The protection board includes an acquisition unit and a control unit. The acquisition unit includes voltage, current and temperature The control unit includes over / undervoltage protection, overcurrent protection, temperature protection, relay control and clock timing units; the low-voltage battery module is equipped with a shelf that can connect and disconnect the low-voltage battery from the external circuit of the vehicle. The disconnect switch and the emergency start switch, wherein the shelving disconnect switch and the emergency start switch adopt a push-button structure, and the functions of the two switches can al...

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Abstract

The invention provides an electricity loss prevention device and an electricity loss prevention method of a low-voltage storage battery. The electricity loss prevention device comprises a low-voltage storage battery module, a guard plate connected with the low-voltage storage battery module, and an acquisition unit and a control unit of the guard plate, wherein the low-voltage storage battery module is also provided with a suspension disconnecting switch and an emergency start switch. In the suspension process of a whole car, the suspension disconnecting switch is pressed by a car owner, the storage battery is disconnected with an external circuit of the whole car, and the storage battery is in a self-discharge state; if the car owner does not press the suspension disconnecting switch, the storage battery is disconnected with the external circuit of the whole car by the guard plate. In the starting process of the whole car, if being pressed, the suspension disconnecting switch is pressed again so as to be reset, and the car can be normally started; if the suspension disconnecting switch is not pressed, the emergency start switch is pressed, and the car can be normally started by the under-voltage delay protection time of the guard plate. The electricity loss prevention device is simple in structure and convenient to operate, and the electricity loss risk of the storage battery which is suspended for a long time can be reduced.

Description

technical field [0001] The invention relates to the field of electric vehicles, in particular to a device for preventing power loss of a low-voltage storage battery and a method thereof. Background technique [0002] Electric vehicles include high-voltage and low-voltage on-board power systems. The high-voltage power system is mainly used to provide the driving power of the vehicle, while the low-voltage power system is mainly used to provide power output for the low-voltage electrical appliances of the vehicle. At present, the voltage level of low-voltage power supply system is usually 12 or 24V, and the most commonly used low-voltage power supply system is lead-acid battery (the use of lithium-ion battery is in a state of development). [0003] During the normal running of the vehicle, the on-board power conversion module (DC-DC) usually starts to output low voltage. The output low voltage supplies power to the low-voltage system of the vehicle on the one hand, and charges...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B60R16/033B60L11/18
CPCY02T10/7005Y02T10/70
Inventor 向晋俞会根盛军丑丽丽王恒李宁
Owner BEIJING ELECTRIC VEHICLE
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