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Nickel-hydrogen battery pack heat management system

A technology for heat management and battery packs, which is applied to secondary batteries, circuits, electrical components, etc., can solve the problems of nickel-hydrogen battery pack heat that has not yet formed a system, simple management, etc., to improve service life and safety performance, guarantee The effect of service life and good temperature uniformity

Inactive Publication Date: 2012-09-26
SHANGHAI YAOYU INDAL +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, the existing nickel-hydrogen battery pack heat management system mainly focuses on the establishment and improvement of the heat dissipation system, and has not yet formed a systematic and simple management of the heat of the overall nickel-hydrogen battery pack;

Method used

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  • Nickel-hydrogen battery pack heat management system
  • Nickel-hydrogen battery pack heat management system

Examples

Experimental program
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Effect test

Embodiment 1

[0024] The heat management system of the nickel-metal hydride battery pack of the present embodiment is as follows: figure 1 As shown, the Ni-MH battery pack 3 is formed by connecting upper and lower electric stacks in series, and the upper and lower electric stacks are formed by connecting several single cells in parallel. The heat management system of the Ni-MH battery pack includes sequentially connected fans 1. Air intake pipe 2, nickel-metal hydride battery pack 3 and air outlet pipe 4; a heater 5 is arranged on the end of the air intake pipe 2 close to the fan 1, between the heater 5 and the nickel-hydrogen battery pack 3 A first temperature sensor 6 is arranged on the air inlet pipe 2 between them, and a second temperature sensor 8 is arranged near the end of the Ni-MH battery pack 3 on the outlet pipe 4; the fan 1, the heater 5, the first The temperature sensor 6 and the second temperature sensor 8 are connected to the controller 10 respectively.

[0025] In this embo...

Embodiment 2

[0029] The heat management system of the nickel-metal hydride battery pack of the present embodiment is as follows: figure 2 As shown, the difference from Example 1 is that the angle between the upper and lower stacks and the horizontal direction is 2.5° (it can be any value between 2° and 3°, and it will never affect the actual value within this range. Use effect); this arrangement makes the heat dissipation effect between the parallel-connected single cells on the upper and lower stacks more consistent, and makes the battery cells have better temperature consistency, thereby better improving the nickel metal hydride Battery life and safety performance.

[0030] To sum up, since the consistency of temperature between battery modules is one of the important factors affecting the performance of the battery pack, even if the consistency of the battery is good when it is first assembled, the consistency will become more and more serious as the use progresses. It's getting worse...

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Abstract

The invention discloses a nickel-hydrogen battery pack heat management system. The heat management system comprises a blower fan, an air inlet pipeline, a nickel-hydrogen battery pack, and an air outlet pipeline connected consecutively. A heater is provided at the end portion close to the blower fan in the air inlet pipeline . The air inlet pipeline between the heater and the nickel-hydrogen battery pack is further provided with a first temperature sensor. The air outlet pipeline close to the end portion of the nickel-hydrogen battery pack is provided with a second temperature sensor. The blower fan, the heater, the first temperature sensor, and the second temperature sensor are separately connected to a controller. A preferable scheme comprises: a first and a second air supply channels respectively supplying air for the upper and lower galvanic piles of the nickel-hydrogen battery pack in an independent and parallel way are arranged in the nickel-hydrogen battery pack; both the air inlet end of the first air supply channel and the air inlet end of the second air supply channel are communicated with the air inlet pipeline, and both the air outlet end of the first air supply channel and the air outlet end of the second air supply channel are communicated with the air outlet pipeline. The heat management system of the invention can make the operating temperature of the battery pack within a reasonable scope, and guarantee good temperature consistency among battery monomers, thereby guaranteeing the service life and the safety performance of the nickel-hydrogen battery pack.

Description

technical field [0001] The invention relates to a nickel-hydrogen power battery, in particular to a heat management system for a nickel-hydrogen battery pack. Background technique [0002] A hybrid electric vehicle (HEV) is equipped with an electric drive system and an auxiliary power unit at the same time. At present, the prime movers used in HEV are generally gasoline engines, diesel engines, gas turbines and matching electric motors. Compared with pure electric vehicles and fuel cell electric vehicles, HEVs have obvious advantages in terms of power performance, mileage, and convenience. Huge commercial value and broad market prospects. [0003] As the main energy storage element of HEV, the power battery is a key component of HEV, and its performance directly affects the performance of HEV. With the development of HEV, the speed of research and development of power batteries has also been unprecedentedly improved. Ni-MH battery is a new generation of high-energy second...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/50H01M10/617H01M10/625H01M10/637H01M10/6563H01M10/6566
CPCY02E60/12Y02E60/10
Inventor 不公告发明人
Owner SHANGHAI YAOYU INDAL
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