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Battery cooling structure

A technology of cooling structure and battery, which is applied to the arrangement of cooling combination of power plant, secondary battery, and battery temperature control, etc., can solve the problems such as the decrease of cooling effect of the third battery module, and achieve improved cooling effect and large heat transfer area. Effect

Inactive Publication Date: 2014-08-27
HONDA MOTOR CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At this time, if the newly added second air intake passage is arranged adjacent to the first exhaust passage or the second exhaust passage, the heat-exchanged air flowing in the first exhaust passage or the second exhaust passage and the Heat exchange is performed between the pre-heat-exchange air flowing in the second intake passage, so that the temperature of the air flowing in the second intake passage rises and the cooling effect of the third battery module may decrease

Method used

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Embodiment Construction

[0038] Below, based on Figure 1 to Figure 13 , to describe the embodiment of the present invention.

[0039] Such as Figure 1 ~ Figure 3 As shown, a battery unit for supplying electric power to a motor generator serving as a driving power source of an electric vehicle includes a flat disk 11 and a plurality of battery modules 12 . . . placed on the surface of the disk 11 . The shape of each battery module 12 is a rectangular parallelepiped, and a plurality of battery cells 13 electrically connected in series are accommodated therein (refer to figure 2 ). Two brackets 12 a , 12 a for fixing the battery module 12 to the tray 11 protrude from both ends in the longitudinal direction of the battery module 12 .

[0040] The mounting bracket 14 provided at the front of the panel 11 is combined with the cross member 15 of the vehicle body, and the two mounting brackets 16L, 17L provided at the left rear of the panel 11 are combined with the left side frame 18L. Two mounting bra...

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Abstract

The invention provides a cooling structure for a storage battery. It can uniformly cool the first to third storage battery packs arranged in three rows. Since the fourth passage (D4) through which the refrigerant before heat exchange flows and the fifth passage (D5) through which the refrigerant after heat exchange flows are adjacent to each other, the refrigerant after heat exchange passing through the fifth passage (D5) The refrigerant before heat exchange in the fourth passage (D4) is heated to reduce the cooling effect of the second battery pack (B2), but part of the refrigerant after heat exchange in the fifth passage (D5) passes through the bypass passage (Db) is discharged to the second channel (D2), and the time for the refrigerant after heat exchange to stay in the fifth channel (D5) is shortened, and the refrigerant before heat exchange in the fourth channel (D4) is difficult to be heated, The cooling effect of the second battery pack (B2) is thereby ensured. Thereby, the temperature of the first to third battery packs ( B1 to B3 ) can be equalized to improve durability.

Description

technical field [0001] The present invention relates to a battery cooling structure for cooling a battery mounted on an electric vehicle or a hybrid vehicle. Background technique [0002] The following Patent Document 1 describes as a second embodiment a structure in which first and second exhaust passages are provided on the left and right sides of an air intake passage (first air intake passage) provided in the center, and The first battery module is arranged between the air intake duct and the first exhaust duct, and the second battery module is arranged between the air intake duct and the second exhaust duct, so that the air supplied from the air intake duct is branched to the left and right to the first battery module. 1. The second battery module is cooled, and the air whose temperature has been raised due to heat exchange is discharged from the first and second exhaust passages. [0003] [Patent Document 1] Japanese Patent Laid-Open No. 2010-15931 [0004] However, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01M10/613H01M10/625H01M10/6566H01M10/6554B60K11/00B60K1/04B60K11/06H01M10/60H01M10/617H01M10/6563
CPCH01M10/6557H01M10/5057B60K1/04B60K2001/005H01M10/5059H01M10/5004H01M10/5016H01M10/613H01M10/625H01M10/6554H01M10/6556H01M10/5053Y02E60/10
Inventor 片山吾一山本康一木村有寿
Owner HONDA MOTOR CO LTD