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Battery pack

A technology of battery packs and batteries, which is applied in the direction of batteries, battery pack parts, secondary batteries, etc., to achieve the effects of suppressing the reduction of discharge characteristics and charging characteristics, improving the effect, and suppressing excessive temperature drop

Pending Publication Date: 2022-05-20
SUBARU CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the output from the battery is sometimes limited depending on the temperature of the battery

Method used

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Examples

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Embodiment Construction

[0036] Hereinafter, the battery pack 14 according to the embodiment of the present invention will be described in detail based on the drawings. In the following description, the respective directions of front, rear, up, down, left and right are used, but left and right are left and right when the vehicle 10 is viewed from the rear. In addition, in the following description, in principle, the same reference numerals are assigned to the same components, and overlapping descriptions are omitted.

[0037] figure 1 It is a side view showing the vehicle 10 including the battery pack 14 . A battery pack 14 for supplying electric power to a motor and various electrical components is mounted on a vehicle 10 such as an automobile or an electric train. The vehicle 10 is, for example, an EV (Electrical Vehicle, electric vehicle), HEV (Hybrid Electrical Vehicle, hybrid electric vehicle), or PHEV (Plug-in Hybrid Electrical Vehicle, plug-in hybrid electric vehicle), or the like.

[0038] ...

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Abstract

The invention relates to a battery pack. Provided is a battery pack in which battery modules can be effectively cooled and insulated by a simple structure. A battery pack (14) is provided with a battery module (15), a cooler (17), a battery temperature detection unit (18), a storage tank (19), a fluid pump (20), and a calculation control unit (22). On the basis of the temperature of the battery module (15) detected by the battery temperature detection unit (18), the calculation control unit (22) circulates the cooling fluid (16) by operating the fluid pump (20) when the battery module (15) is cooled, thereby causing the cooling fluid (16) circulating in the cooler (17) to exchange heat with the battery module (15), and causes the cooling fluid (16) to circulate in the cooler (17) when the battery module (15) is kept warm. At least a part of the cooling fluid (16) is stored in the storage tank (19), thereby reducing the cooling fluid (16) inside the cooler (17).

Description

technical field [0001] The present invention relates to battery packs, and more particularly to battery packs using a cooling fluid for temperature regulation of the battery cells. Background technique [0002] A battery that stores electric power for running is mounted on an electric vehicle. The storage battery is temperature-controlled, and its temperature is adjusted so that it falls within a constant temperature range. That is, the temperature is raised so that the temperature of the battery does not become lower than the lower limit temperature, and the temperature of the battery is cooled so that the temperature of the battery does not become higher than the upper limit temperature. In addition, the output from the battery may be limited depending on the temperature condition of the battery. [0003] Patent Document 1 discloses a battery pack cooling device that cools a battery mounted on a vehicle by cooling the battery by passing refrigerant into and out of the st...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01M10/613H01M10/63H01M10/633H01M10/625H01M10/6566H01M10/6568H01M10/6563
CPCH01M10/613H01M10/63H01M10/633H01M10/625H01M10/6566H01M10/6568H01M10/6563B60L58/26H01M10/486H01M2220/20B60L2240/545H01M10/635H01M10/6561H01M10/659B60L50/60H01M50/204H01M10/656H01M50/249
Inventor 成毛俊昭上田逸央石川达也
Owner SUBARU CORP
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