Invention Grant
- Patent Title: Heating circuits and methods based on battery discharging and charging using resonance components in series and freewheeling circuit components
- Patent Title (中): 基于电池放电和充电的加热电路和方法，使用串联谐振元件和续流电路元件
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Application No.: US13184906Application Date: 2011-07-18
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Publication No.: US08941357B2Publication Date: 2015-01-27
- 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; CN201010603719 20101223
- Main IPC: H01M10/46
- IPC: H01M10/46 ; H02J7/00 ; H01L23/34 ; H01M10/615 ; H01M10/625 ; H01M10/657 ; H01M10/6571 ; H02M3/158
Abstract:
A circuit for heating a battery includes a switch unit, switching control module, damping component, energy storage circuit, and freewheeling circuit. The energy storage circuit is connected with the battery, and includes a current storage component and charge storage component. The damping component, switch unit, current storage component, and charge storage component are connected in series. The switching control module is connected with the switch unit, and is configured to control switching on and off of the switch unit so that current can flow back-and-forth between the battery and energy storage circuit when the switch unit switches on, and amplitude of the current flowing from the energy storage circuit to the battery can be controlled. The freewheeling circuit is configured to sustain the current flowing to the battery when there is current flowing from the energy storage circuit to the battery and after the switch unit switches off.
Public/Granted literature
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