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System and method for preheating power battery box

A power battery and preheating technology, applied in secondary batteries, circuits, electrical components, etc., can solve the problems of long charging time, poor low temperature characteristics of power batteries, low discharge efficiency, etc., and achieve the effect of improving charging capacity and discharging capacity.

Inactive Publication Date: 2014-05-07
JIANGSU JIAYU NEW POWER TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In order to solve the technical problems in the above-mentioned background technology, the present invention aims to provide a system for preheating the power battery box and its heating method, so as to solve the problem of low discharge efficiency and long charging time caused by the poor low temperature characteristics of the power battery The problem

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Embodiment Construction

[0016] The technical solutions of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0017] like figure 1 The schematic diagram of the system structure of the present invention is a system for preheating the power battery box, including a vehicle charger and a power battery box. The inside of the vehicle charger contains a control system, and the power battery box is equipped with a power battery . The power battery box also contains heating resistance wire, temperature acquisition module and main contactor. The main contactor includes an input terminal, a normally open contact output terminal and a normally closed contact output terminal, the on-board charger includes a first charging terminal and a second charging terminal, and the positive pole of the power battery is connected to the normally open contact of the main contactor. Point output terminal, the negative pole of the power battery is connected to the first cha...

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Abstract

The invention discloses a system and method for preheating a power battery box. The anode of a power battery is connected with a normally opened contact output end of a main contactor; the cathode of the power battery is connected with a first charging end of a vehicle-mounted charger; one end of a heating resistance wire is connected with a normally closed contact output end of the main contactor and the other end of the heating resistance wire is connected with the first charging end of the vehicle-mounted charger; a second charging end of the vehicle-mounted charger is connected with the input end of the main contactor; a normally opened contact of the main contactor is connected with the normally opened contact output end of the main contactor, and a normally closed contact of the main contactor is connected with the normally closed contact output end of the main contactor; a control system inside the vehicle-mounted charger controls a temperature acquisition module and the main contactor to work. According to the system and method disclosed by the invention, the problems of low discharge efficiency and long charging time caused by poor low temperature characteristic of the power battery are solved.

Description

technical field [0001] The invention belongs to the technical field of batteries, and in particular relates to a system for preheating a power battery case and a heating method thereof. Background technique [0002] With the approaching global energy crisis, energy-saving and environmentally friendly new energy electric vehicles have gradually entered people's lives and become a trend in future life. However, the current characteristics of power batteries restrict the large-scale promotion of electric vehicles. The low-temperature characteristics of power batteries are poor, the discharge efficiency is low, and the charging time is long, all of which restrict the use and development of electric vehicles. Contents of the invention [0003] In order to solve the technical problems in the above-mentioned background technology, the present invention aims to provide a system for preheating the power battery box and its heating method, so as to solve the problem of low discharge...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/615H01M10/635
CPCY02E60/10
Inventor 茅园
Owner JIANGSU JIAYU NEW POWER TECH
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