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Water-cooled wireless charging system of electric vehicle

A technology for electric vehicles and wireless charging, which is applied in the direction of electric vehicles, electromagnetic wave systems, battery circuit devices, etc., can solve the problems of line parameter changes, affect the wireless charging efficiency of electric vehicles, and the low utilization rate of wire cross-sections, and achieve the effect of improving efficiency

Active Publication Date: 2014-07-30
STATE GRID CORP OF CHINA +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Wireless charging technology transmits power through high-frequency electromagnetic fields. The current in the transmitter coil and receiver coil is often very large, requiring the use of thicker diameter wires, and the skin effect of the current in a high-frequency environment is more obvious. The use of wire cross-section low rate
At the same time, the line parameters change due to temperature rise, which seriously affects the efficiency of wireless charging of electric vehicles

Method used

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  • Water-cooled wireless charging system of electric vehicle

Examples

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Embodiment 1

[0032] Embodiment 1 provided by the present invention is an embodiment of a water-cooled electric vehicle wireless charging system. When copper pipes are laid around the charging transmitters for water-cooling cooling, each charging transmitter is also equipped with a first temperature sensor. A temperature sensor communicates with the detection and controller to measure the temperature of the corresponding charging transmitter in real time. When the detection and controller detects the charging signal and the temperature measured by the first temperature sensor is higher than the set temperature, it controls the water-cooled cable Connect the copper pipe around the charging transmitter. The set temperature is artificially set according to the corresponding relationship between the operating efficiency of the charging transmitter and the temperature, so as to ensure that the charging transmitter operates within a suitable temperature range.

[0033] The capacity of the closed ...

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PUM

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Abstract

The invention provides a water-cooled wireless charging system of an electric vehicle. The water-cooled wireless charging system comprises a power cabinet, a capacitor cabinet, charging emitters, a detection and control device, a closed cooling box, a water-cooled cable and red copper pipes. The closed cooling box is used for storing cooling water, one end of the water-cooled cable is connected with the closed cooling box, and the other end of the water-cooled cable is respectively connected to the red copper pipes on the peripheries of the charging emitters. When charging signals of the charging emitters are detected through the detection and control device, the water-cooled cable is controlled to be communicated with the red copper pipes on the peripheries of the charging emitters, and the charging emitters are cooled through the circulating cooling water. According to the water-cooled wireless charging system of the electric vehicle, the charging emitters are cooled through a cooling water circulating system, and the wireless charging efficiency of the electric vehicle is improved.

Description

technical field [0001] The invention relates to the technical field of electric vehicle charging, in particular to a water-cooled wireless charging system for electric vehicles. Background technique [0002] The development of electric vehicles is the need of energy saving, environmental protection and low-carbon economy. The charging system of electric vehicles is equivalent to the filling station of automobile fuel. At present, the main charging methods of electric vehicles include ordinary charging charging piles, fast charging charging stations and replaceable Battery swap station. [0003] In the technology of wireless energy transmission, there is no direct connection between power supply and electricity, avoiding exposed conductors and contact sparks, and has the advantages of safety and convenience. It has attracted the attention and attention of the majority of researchers. Its application field Very broad, especially in special and harsh environments with broad ap...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J7/00H02J17/00H05K7/20H02J50/00
Inventor 李武峰严辉李晓强李凯旋李索宇杨磊柳宇航郭晋伟
Owner STATE GRID CORP OF CHINA
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