Wireless charging device based on two-way energy flow
A two-way flow, wireless charging technology, applied in circuit devices, battery circuit devices, current collectors, etc., can solve problems such as failure to achieve energy efficiency, energy cannot be returned to the power grid, increase the volume of the power receiving part, etc. The volume, the structure is simple and compact, and the effect of avoiding interference
Inactive Publication Date: 2016-01-20
BEIJING INST OF AEROSPACE CONTROL DEVICES
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Problems solved by technology
This method not only increases the volume of the power receiving part, but also is susceptible to electromagnetic interference from the loosely coupled transformer that transmits energy and sends wrong information, resulting in unstable or even inoperable operation of the entire system
The one-way transmission characteristics of the existing wireless power transmission device lacks an energy feedback channel, and the energy cannot be returned to the grid, which fails to improve energy efficiency more effectively
Method used
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[0029] The present invention will be described in detail below in conjunction with the accompanying drawings.
[0030] like image 3 As shown, this embodiment includes: a power transmitting end module connected in sequence, a power transmitting end coil and a power receiving end coil of a loosely coupled transformer, a power receiving end module and a charging device 14, wherein: the power transmitting end and the power receiving end coil are respectively The power transmitting end module is connected with the power receiving end module, and the power receiving end module is connected with the charging device 14. When charging or discharging, the electric energy can realize bidirectional flow according to the working state of the device.
[0031] The loosely coupled transformer is specifically composed of two litz coils with 15 turns and a diameter of 50 mm.
[0032] Specifically, when the charging device 14 is short of power, the system enters the power transmission mode, an...
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The invention discloses a wireless charging device based on two-way energy flow, comprising a sending end module, a receiving end module, a loose coupling transformer, and charging equipment. The loose coupling transformer includes a sending end coil and a receiving end coil. The sending end module includes a sending end power conversion unit, a sending end strong-current power supply unit, a sending end weak-current power supply unit, a sending end controller, a sending end signal conditioning and protection unit, and a sending end sensor unit. The receiving end module includes a receiving end power conversion unit, a receiving end weak-current power supply unit, a receiving end controller, a receiving end signal conditioning and protection unit, a receiving end sensor unit, and a power conditioning unit connected with the charging equipment. The wireless power transmission technology of the invention is an electromagnetic induction type wireless power transmission technology. The sending module and the receiving module are connected without any wire, and the sending module and the receiving module have a symmetrical topology structure, which provides a channel for two-way power transmission.
Description
technical field [0001] The invention relates to a wireless charging device with bidirectional energy flow, belonging to the technical field of wireless charging. Background technique [0002] Wireless power transfer technology is a new power supply mode, which enables electrical equipment to obtain power from a static power system in a wireless manner. This power supply mode has good safety, high reliability, and low maintenance cost, which eliminates the unreliability of multi-point contact, the safety of power consumption of equipment in abnormal environments, the limitation of electrical equipment movement, and the sliding wear of the sliding power-taking method. , exposure to sparks, carbon deposits and unsafe exposed conductors, etc., especially suitable for harsh environments such as dust, humidity, underwater, flammable, and explosive, as well as mobile electrical equipment that requires flexible access to electrical energy. The maturity and wide application of this ...
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IPC IPC(8): H02J50/12H02J7/02
Inventor 白亮宇李新宇李文江郝永勤肖跃华贾利斌张微微周凤娄晓芳刘慧敏郭锡涛
Owner BEIJING INST OF AEROSPACE CONTROL DEVICES