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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.:

US 8970172 B1

PDFFull Text
Date of Patent:
Mar. 03, 2015

Filed:

Jul. 21, 2011

Battery heating circuits and methods with resonance components in series using voltage inversion and freewheeling circuit components

Applicants:

Yaochuan Han, Shenzhen, CN;

Wenhui Xu, Shenzhen, CN;

Wei Feng, Shenzhen, CN;

Qinyao Yang, Shenzhen, CN;

Wenjin Xia, Shenzhen, CN;

Xianyin LI, Shenzhen, CN;

Inventors:

Yaochuan Han, Shenzhen, CN;

Wenhui Xu, Shenzhen, CN;

Wei Feng, Shenzhen, CN;

Qinyao Yang, Shenzhen, CN;

Wenjin Xia, Shenzhen, CN;

Xianyin Li, Shenzhen, CN;

Assignee:

BYD Company Limited, Shenzhen, CN;

Attorney:

Jones Day

Primary Examiner:

Samuel Berhanu

Assistant Examiner:

Jerry D Robbins

Int. Cl.
CPC ...
H01M 10/46 (2006.01); H02J 7/00 (2006.01); H01L 23/34 (2006.01); H01M 10/615 (2014.01); H01M 10/625 (2014.01); H01M 10/657 (2014.01); H01M 10/6571 (2014.01); H02M 3/158 (2006.01);
U.S. Cl.
CPC ...
H01L 23/345 (2013.01); H01M 10/5006 (2013.01); H01M 10/5016 (2013.01); H01M 10/5081 (2013.01); H01M 10/5083 (2013.01); H02J 7/0054 (2013.01); H02J 7/0014 (2013.01); H02M 3/158 (2013.01); Y02T 10/7055 (2013.01); H02J 7/0075 (2013.01); H02J 7/0091 (2013.01); H02J 7/0093 (2013.01); Y02E 60/12 (2013.01);
Abstract

Circuit and method for heating a battery. The circuit includes the battery with damping component, a switch unit, a switching control module, an energy storage circuit, a freewheeling circuit, and an energy superposition unit. The energy storage circuit connects with the battery to form a loop, and includes current and charge storage components. The damping component, switch unit, current storage component, and charge storage component connect in series. The switching control module turns on the switch unit such that current flows between the battery and energy storage circuit. The energy superposition unit superposes the energy in the energy storage circuit with the energy in the battery after the switch unit switches on and then off. The freewheeling circuit forms a serial loop with the battery and the current storage component to sustain current flow in the battery after the switch unit switches on and then off.

Find Patent Forward Citations

Han, Yaochuan. (2015). Battery heating circuits and methods with resonance components in series using voltage inversion and freewheeling circuit components (U.S. Patent No. 8970172). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8970172

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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