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Battery pack temperature regulation system

A technology for temperature regulation and battery packs, applied in battery temperature control, batteries, secondary batteries, etc., can solve the problems of high cost and heavy power consumption, and achieve the effect of ensuring normal use and preventing battery overheating

Inactive Publication Date: 2015-11-18
HIGER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Patent No. 200810167815.3 provides a temperature adjustment system solution with both cooling and heating functions, but this solution requires a condenser and a ceramic heater, which is expensive and adds a large additional power consumption burden

Method used

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  • Battery pack temperature regulation system

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Embodiment Construction

[0015] The battery pack temperature regulating system disclosed by the invention is used for regulating the temperature of the battery pack of a hybrid electric bus. Such as figure 1 As shown, it includes a pump 2 connected in sequence by a fluid pipeline 1, a battery box 3 and a proportional adjustment three-way valve 4. The proportional adjustment three-way valve 4 includes an inflow port and two outflow ports. The inflow port The battery box 3 is connected through the fluid pipeline, and the two outlets are respectively connected to a cooler 5 and a heat exchanger 6 through the fluid pipeline, and the cooler 5 and the heat exchanger 6 are respectively connected to the pump 2 through the fluid pipeline to form a cycle In the circuit, the fluid pipe is filled with fluid medium. The pump 2 provides the driving force for fluid medium circulation, and the proportional three-way valve 4 adjusts the proportion of the fluid passing through the cooler and the heat exchanger.

[00...

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Abstract

The invention discloses a battery pack temperature regulation system, which is used for regulating battery pack temperature of a hybrid power electric bus. The battery pack temperature regulation system comprises a pump, a battery pack box and a proportional control three-way valve which are sequentially communicated via a fluid pipeline, wherein the two outlets of the proportional control three-way valve are respectively communicated with a cooler and a heat exchanger via the fluid pipeline, the cooler and the heat exchanger are communicated with the pump via the fluid pipeline to form a circulation loop, and the fluid pipeline is filled with a fluid medium. In the battery pack temperature regulation system, the proportional control three-way valve is used for regulating fluid proportions of the cooler and the heat exchanger, a cooling fan of a motor cooling water tank and an engine cooling water circulation system of the hybrid power electric bus are respectively used for cooling and heating the fluid medium, an extra refrigeration device or a heating device is not added, the temperature of the fluid medium back-flowing to the battery pack box is kept in an appropriate range, the battery can be prevented from overheating, and particularly for a cold region, the normal operation of the battery also can be guaranteed.

Description

technical field [0001] The invention relates to a battery pack, in particular to a power battery pack temperature regulating system used on a hybrid electric passenger car. Background technique [0002] As an energy-saving and environment-friendly product, the hybrid electric bus has a very promising application prospect. Since the power battery pack of a hybrid electric bus needs to drive the vehicle alone in some cases, the output power requirement is very high, and the capacity of the battery pack is relatively small compared with that of a pure electric vehicle, and due to the charging and discharging power of the battery during use The difference is not very big, so the charge and discharge rate of the power battery pack is very high. Such a relatively small-capacity power battery pack generates serious heat during high-rate charging and discharging, and the temperature rises rapidly. In order to make the power battery work normally, it is necessary to effectively diss...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/613H01M10/615H01M10/625H01M10/6556H01M10/66H01M10/663
CPCH01M2220/20Y02E60/10
Inventor 张卫林王世强朱乐凯方兰兰李竞克
Owner HIGER
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