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:
Apr. 21, 2015
Filed:
Jun. 29, 2009
Shin Suzuki, Sagamihara, JP;
Hiroaki Ueno, Sagamihara, JP;
Shin Suzuki, Sagamihara, JP;
Hiroaki Ueno, Sagamihara, JP;
NEC Energy Devices, Ltd., Kanagawa, JP;
Abstract
A secondary battery pack of the present invention includes a secondary battery blockin which a plurality of unit blocksare connected in series; battery adjustment sectionsthat are each provided for each of the unit blocksand have a function of monitoring the voltage of secondary batteries and a function of adjusting the balance; a charge switch; and a discharge switch. The secondary battery pack includes transmission sectionsthat receive information from the corresponding battery adjustment sections. The transmission sections are connected to the preceding or subsequent transmission sections and are so set that at least either information input from the preceding transmission sections or information input from the battery adjustment sectionsis output to the subsequent transmission sections. The transmission sections are equipped with a constant current transmission section that transmits with a constant value of current; and a current detection section that can detect the value of the constant current.