Wireless charging device of electronic automobile

A technology for wireless charging and electric vehicles, applied in electric vehicles, battery circuit devices, circuit devices, etc., can solve problems such as small transmission power, small transmission distance, and difficult design, to meet charging needs, large transmission power, flexible and effective The effect of control

Active Publication Date: 2013-03-13
INST OF ELECTRICAL ENG CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the deficiencies of the prior art, and propose a wireless charging device for electric vehicles with large output power, high efficiency and long transmission distance,

Method used

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  • Wireless charging device of electronic automobile
  • Wireless charging device of electronic automobile
  • Wireless charging device of electronic automobile

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Embodiment Construction

[0038] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0039] The electric vehicle wireless charging device of the present invention comprises a transmitting end connected with a commercial frequency power supply and a receiving end connected with the battery system of the electric vehicle.

[0040] The transmitting end is composed of a power frequency rectification unit, a power factor correction unit, an inverter unit, an impedance transformation unit, a transmitting coil unit, a first communication unit and a first control unit. The power frequency rectification unit, power factor correction unit, inverter unit, impedance transformation unit and transmitting coil unit are connected in series in this order, the first communication unit and the first control unit are connected in series, and the first control unit controls the inverter unit Output.

[0041] The receiving end is composed of a rece...

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PUM

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Abstract

The invention provides a wireless charging device of an electronic automobile. The wireless charging device comprises a transmitting end connected with a power frequency power source and a receiving end connected with an electronic automobile battery system; the transmitting end consists of a power frequency rectifying unit, a power factor correction unit, an inversing unit, an impedance conversion unit, a transmitting coil unit, a first communication unit and a first control unit; and the receiving end consists of a receiving coil unit, a load compensation unit, a high-frequency rectifying and filtering unit, a DC (Direct-Current)-DC conversion unit, a second communication unit and a second control unit. The transmitting coil unit and the receiving coil unit are mutually coupled to carry out wireless energy transmission; and the first communication unit and the second communication unit are communicated in a wireless manner.

Description

technical field [0001] The invention relates to the field of wireless charging for electric vehicles, in particular to a wireless charging device for electric vehicles with high power and high efficiency. Background technique [0002] The development of wireless charging technology for electric vehicles is of great significance. It can completely solve the shortcomings of traditional contact charging, such as easy wear and tear, easy to get an electric shock, and unreliable power transmission after repeated plugging and unplugging. However, the wireless charging of electric vehicles requires at least several KW of output power, and the transmission distance is also relatively long, which poses a great challenge to the wireless charging technology of electric vehicles. [0003] Existing wireless charging products generally use electromagnetic induction for power transmission. This type of product has the characteristics of low power, low efficiency, and short transmission dis...

Claims

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Application Information

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IPC IPC(8): H02J7/02H02J17/00H02J50/10
Inventor 廖承林王丽芳邓凯李均锋
Owner INST OF ELECTRICAL ENG CHINESE ACAD OF SCI
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