Invention Grant
- Patent Title: Battery pack
- Patent Title (中): 电池组
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Application No.: US11866355Application Date: 2007-10-02
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Publication No.: US08173286B2Publication Date: 2012-05-08
- Inventor: Shuhei Marukawa , Naoki Fukusako , Masahiro Misu , Syogo Yoneda , Toyohiko Eto
- Applicant: Shuhei Marukawa , Naoki Fukusako , Masahiro Misu , Syogo Yoneda , Toyohiko Eto
- Applicant Address: JP Kosai-shi
- Assignee: Panasonic EV Energy Co., Ltd.
- Current Assignee: Panasonic EV Energy Co., Ltd.
- Current Assignee Address: JP Kosai-shi
- Agency: Christensen O'Connor Johnson Kindness PLLC
- Priority: JP2006-274808 20061006; JP2007-154342 20070611
- Main IPC: H01M2/36
- IPC: H01M2/36 ; H01M2/10 ; H01M2/12

Abstract:
In a battery pack where a fan is housed within a case housing a battery stack, the noise generated from turbulence of a medium that is supplied and exhausted between a fan opening of the fan and the battery stack is reduced. The battery pack has a battery stack, a cooling fan installed adjacent to the battery stack and having a fan opening formed in a top surface for taking in cooling air after cooling the battery stack, an upper case for covering the upper part of the battery stack and the cooling fan, and a junction duct for guiding the cooling air after cooling the battery stack to the fan opening. The junction duct is formed from the duct lower unit having an opening formed at a location facing the fan opening and one wall of the upper case in contact with a lower end and periphery of the duct lower unit.
Public/Granted literature
- US20080213653A1 BATTERY PACK Public/Granted day:2008-09-04
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