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A normal-line multi-coil magnetic gathering wireless charging device for electric vehicles

An electric vehicle, wireless charging technology, applied in electric vehicle charging technology, electric vehicles, charging stations, etc., can solve the problem of magnetic leakage of induction coils

Inactive Publication Date: 2020-04-14
NANJING AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem of ground system induction coil magnetic flux leakage in the prior art, and propose a normal multi-coil magnetic gathering electric vehicle wireless charging device and method

Method used

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  • A normal-line multi-coil magnetic gathering wireless charging device for electric vehicles
  • A normal-line multi-coil magnetic gathering wireless charging device for electric vehicles
  • A normal-line multi-coil magnetic gathering wireless charging device for electric vehicles

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Embodiment Construction

[0016] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention.

[0017] refer to figure 1 , a normal multi-coil magnetic gathering electric vehicle wireless charging device, including an inverter 1, a ground system induction coil 2, a vehicle chassis secondary coil 3, a vehicle battery device 4, a magnetic force detection sensor 5, and a parking target tracking device6. The input is a power frequency 220V AC power supply, and the load is an electric vehicle battery. Adopt full-bridge uncontrolled rectification filter circuit, inverter 1, ground system induction coil 2, and the secondary side also adopts full-bridge rectifier filter circuit, and charge the battery through diodes and filter inductors. The primary side constitutes ...

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Abstract

The invention discloses a normal form multi-coil magnetic gathering type wireless charging device for electric automobiles. The wireless charging device comprises an inverter, a ground system induction coil, an automobile chassis secondary coil, vehicular battery equipment, a magnetism detection sensor and a parking target tracking device. The wireless charging device is characterized in that the ground system induction coil controls the parking target tracking device according to the magnetism detection sensor to adjust a parking position in order to realize coincidence of a line between a small coil and the automobile chassis secondary coil with the normal line, induction electromotive force is acquired close to a primary winding space through inductive coupling of high-frequency alternating flux, flux leakage is reduced, wireless transmission efficiency is improved, and electric energy is provided for a vehicular battery.

Description

technical field [0001] The invention relates to the technical field of wireless power transmission, in particular to a normal-line multi-coil magnetic gathering and follow-up wireless charging device for electric vehicles. Background technique [0002] The function of the electric vehicle wireless power transmission device is to transmit electric energy through the electromagnetic coupling between the coil buried on the ground and the secondary coil fixed on the vehicle chassis, and charge the power battery. It has a series of advantages such as safety, environmental protection, full automation, and maintenance-free. . The input end of the charging device is connected to the AC grid 220V, and the output end is connected to the secondary coil of the car chassis for charging the load battery. [0003] Although wireless charging technology has the characteristics of flexible and convenient use, from the perspective of relatively low power conversion efficiency and large energy...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60L53/12B60L53/66B60L53/38
CPCB60L53/12B60L53/36B60L53/38B60L53/60Y02T10/70Y02T10/7072Y02T10/72Y02T90/12Y02T90/14Y02T90/16
Inventor 徐进俞普德卢胜利
Owner NANJING AGRICULTURAL UNIVERSITY
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