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Battery-pack temperature regulating device

A temperature regulating device, battery pack technology, applied in secondary batteries, transportation and packaging, battery pack components, etc., can solve the problem that the battery pack cannot fully meet the use requirements, the battery pack electrical performance consistency is poor, and the air inlet and outlet temperature difference Large and other problems, to achieve the effect of simple temperature adjustment measures, compact structure, and easy temperature adjustment

Inactive Publication Date: 2018-12-25
JIANGSU FRONT NEW ENERGY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these temperature adjustment methods have some shortcomings in use. For example, the air cooling method has a large temperature difference between the air inlet and the air outlet, which may easily cause the problem of poor consistency of the battery pack’s electrical performance.
The disadvantage of the water cooling method is that it takes up a lot of space and the production cost is high
The obvious disadvantage of the conventional natural cooling method is that the cooling efficiency is low
In general, the cooling methods of the existing technology cannot fully meet the battery pack requirements for electric vehicles

Method used

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Examples

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Embodiment 1

[0020] The product made by the present invention is matched with an electric vehicle. When used in a high-temperature season, on the one hand, due to the high ambient temperature and on the other hand, due to the existence of internal resistance, a certain amount of heat is generated during the charging and discharging phase, which easily causes the battery pack 5 to overheat. In order to improve the operating conditions of the battery pack 5, necessary cooling measures should be taken. In this embodiment, the crushed ice cubes with particle size less than 30mm are stuffed into the casing 3. After a period of heat exchange, the crushed ice cubes become water. At that time, the valve 2 can be unscrewed, and the water leaks through the discharge pipe 1. After the water is exhausted, retighten the valve 2, uncover the cover 4, refill the crushed ice cubes, and create cooling conditions again. Through the above-mentioned temperature adjustment, the working environment of the batte...

Embodiment 2

[0022] The product made by the present invention is also matched with electric vehicles. When used in cold seasons, the low temperature environment is also unfavorable for charging and discharging the battery pack 5 . In order to reduce the negative impact of low temperature, the countermeasure adopted is to fill the box body 3 with thermal insulation material. The thermal insulation material used in this embodiment is thermal insulation cotton with a thermal conductivity of 0.14W / (m·k). This technical measure is easy to implement, low in application cost, and most importantly, has a good heat preservation effect, which can completely avoid the low-temperature operation of the battery pack 5 and ensure the safe use of the battery pack 5 in a normal environment.

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Abstract

The invention discloses a battery-pack temperature regulating device, which comprises a drain pipe, a valve, a box body, a cover and a matching battery pack. The box body is a thin-walled container with an elongated open end facing upward, and a discharge pipe is arranged at one end, and the discharge pipe is controlled by a valve. Two cabinets filled with crushed ice or thermal insulation materials are respectively connected with the two sides of the battery pack into one body, and the cabinets are provided with sealing covers. The invention selects the stuffing in the box body according to the working environment temperature of the battery pack, the stuffing in the box body is filled with crushed ice cubes in order to lower the temperature in the high temperature season, and the insulation cotton is stuffed in the box body in the severe cold period to form the heat preservation structure. Through the technical measures, the temperature of the battery pack is effectively adjusted, thebattery charging and discharging power is not reduced, the charging time is not prolonged, and the use safety of the battery pack is improved.

Description

technical field [0001] The invention belongs to the technical field of temperature adjustment, in particular, the invention relates to a temperature adjustment device, especially a battery pack temperature adjustment device. Background technique [0002] With the rapid development of electric vehicles, the market demand for lithium-ion power batteries matching them has increased significantly. Compared with lead-acid batteries, the biggest technical feature of lithium-ion power batteries is their high energy density, and the power of battery packs composed of lithium-ion batteries will also increase accordingly. Of course, lithium-ion power batteries also have the same internal resistance problem as lead-acid batteries, which means that the battery pack composed of lithium-ion batteries will generate heat during charging and discharging. If the heat of the battery pack cannot be dissipated in time, the working conditions will inevitably deteriorate. It is well known in the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M2/10H01M10/613H01M10/625H01M10/6567B60L11/18H01M50/249
CPCH01M10/613H01M10/625H01M10/6567H01M50/20Y02E60/10
Inventor 缪书坤吴飞佘沛亮黄杨吴宏亮徐斌
Owner JIANGSU FRONT NEW ENERGY
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