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:
Jan. 01, 2019
Filed:
Jun. 14, 2017
Nobuhito Tanaka, Tokyo, JP;
Yoshihiro Satake, Tokyo, JP;
Norihito Kawaguchi, Tokyo, JP;
Koji Koshimizu, Tokyo, JP;
Kaoru Usui, Tokyo, JP;
Yusuke Ohba, Tokyo, JP;
Nobuhito Tanaka, Tokyo, JP;
Yoshihiro Satake, Tokyo, JP;
Norihito Kawaguchi, Tokyo, JP;
Koji Koshimizu, Tokyo, JP;
Kaoru Usui, Tokyo, JP;
Yusuke Ohba, Tokyo, JP;
MITSUMI ELECTRIC CO., LTD., Tokyo, JP;
Abstract
A battery protecting apparatus includes: a charging/discharging control chip including a charging control FET and a discharging control FET connected to a secondary battery; a protecting chip configured to control, based on a voltage between both ends of the secondary battery, the FETs to prevent overcharging, over discharging, and an overcurrent; and a lead frame having a connection surface for a plurality of external terminals and another surface in conduction with the connection surface. Said another surface is electrically connected, via a conductive material, to terminals of the FETs formed on a front surface of the charging/discharging control chip. A back surface of the protecting chip faces a back surface of the charging/discharging control chip via an insulative member. Terminals of the protecting chip are electrically connected to said another surface through bonding wires. The charging/discharging control chip and the protecting chip are covered by a resin.