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:
Dec. 19, 2017
Filed:
Feb. 04, 2016
Makita Corporation, Anjo-shi, JP;
Eiji Kondo, Anjo, JP;
MAKITA CORPORATION, Anjo-Shi, JP;
Abstract
As a cooling draft flows from a rear side to a front side of battery cells () inside a battery pack (), it is divided into two cooling drafts (F, F) in a left-right direction, which is the direction that the battery cells () are disposed in parallel, and those two cooling drafts respectively flow through a plurality of passageways that longitudinally extend along the battery cells (). More particularly, a second battery cell () is cooled by the cooling draft flowing in a second ventilation-path volume (Q) before a first battery cell () and a third battery cell () are cooled by cooling drafts respectively flowing in a first ventilation-path volume (Q) and a third ventilation-path volume (Q), which are longer than the second ventilation-path volume (Q).