Invention Grant
- Patent Title: Battery heating circuits and methods using resonance components in series based on current limiting and voltage inversion with bi-directionality and common inductance
- Patent Title (中): 基于电流限制和电压反转的双向和公共电感的电池加热电路和使用共振元件串联的方法
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Application No.: US13170044Application Date: 2011-06-27
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Publication No.: US08836277B2Publication Date: 2014-09-16
- Inventor: Wenhui Xu , Yaochuan Han , Wei Feng , Qinyao Yang , Wenjin Xia , Shibin Ma
- Applicant: Wenhui Xu , Yaochuan Han , Wei Feng , Qinyao Yang , Wenjin Xia , Shibin Ma
- Applicant Address: CN Shenzhen
- Assignee: BYD Company Limited
- Current Assignee: BYD Company Limited
- Current Assignee Address: CN Shenzhen
- Agency: Jones Day
- Priority: CN201010245288 20100730; CN201010274785 20100830; CN201110080853 20110331
- Main IPC: H01M10/46
- IPC: H01M10/46 ; H02J7/00 ; H01M10/6571 ; H01M10/615 ; H01M10/625 ; H01M10/657 ; H02M3/158
Abstract:
Circuit and method for heating a battery. The circuit includes the battery including parasitic damping and current storage components. A first switch unit and first charge storage component are parts of a battery discharging circuit. A second current storage component is in series with the first charge storage component and a one-way semiconductor component. The one-way semiconductor component and second current storage component are in parallel with the first switch unit. The first charge storage component, second current storage component, and the one-way semiconductor component are parts of a battery charging circuit. A second switch unit is in parallel to the first charge storage component and the second current storage component. The second switch unit and the second current storage component are parts of a voltage regulation and polarity inversion circuit for the first charge storage component. The circuit heats the battery by discharging and charging the battery.
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