The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 16, 2004
Filed:
Mar. 23, 2004
Shinya Kimoto, Toyohashi, JP;
Panasonic EV Energy Co., Ltd., Kosai, JP;
Abstract
A battery pack apparatus including: a plurality of battery packs each having a plurality of rechargeable batteries arranged in parallel, with a cooling medium passage interposed therebetween; a plurality of cooling medium feeding devices provided, one for each of the battery packs for feeding a cooling medium through the cooling medium passage of the battery pack; a temperature detector for detecting temperature of the rechargeable batteries in the respective battery packs; and a controller for controlling the cooling medium feeding devices based on detected temperatures, wherein the controller controls the cooling medium feeding devices such that the maximum or minimum temperatures detected for the respective battery packs substantially match with each other, to thereby inhibit the temperature variation among the rechargeable batteries.