Vehicle-mounted wireless charger with low electromagnetic interference

A vehicle-mounted wireless and low-electromagnetic technology, which is applied in current collectors, electric vehicles, battery circuit devices, etc., can solve the problems of unsatisfactory EMC effect of vehicle-mounted wireless chargers, unable to guarantee the reliability and stability of wireless chargers, and other problems. Achieve the effect of reducing electromagnetic radiation interference, weakening electromagnetic interference, and increasing inductance

Inactive Publication Date: 2018-01-05
HUIZHOU SPEED WIRELESS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The EMC effect of the current car wireless chargers on the market is not ideal. The electromagnetic interference radiated by the charging coil is likely to affect other components, and the reliability and stability of the wireless charger cannot be guaranteed.

Method used

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  • Vehicle-mounted wireless charger with low electromagnetic interference
  • Vehicle-mounted wireless charger with low electromagnetic interference

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Embodiment Construction

[0019] In order to enable those skilled in the art to better understand the technical solution of the present invention, the technical solution of the present invention will be further described below in conjunction with the accompanying drawings.

[0020] like figure 1 , 2 As shown, a vehicle wireless charger with low electromagnetic interference includes a charging coil, a thermistor, a metal cover, a PCB main board, a ferrite plate and a metal bracket. The order from top to bottom is that the charging coil is set below There is a ferrite board, a metal cover is set under the ferrite plate, a metal bracket is set under the metal cover, a PCB main board is set under the metal support, and all electronic components that realize the vehicle wireless charging and transmitting function are fixed on the PCB main board , the thermistor is arranged at the center of the charging coil, connected to the PCB main board through wires, and used to detect the temperature of the charging c...

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Abstract

The invention relate to the technical field of vehicle-mounted wireless charging, in particular to a vehicle-mounted wireless charger with low electromagnetic interference. The vehicle-mounted wireless charger comprises a charging coil, a metal cover and a printed circuit board (PCB) mainboard, wherein the metal cover is arranged below the charging coil, the PCB mainboard is arranged below the metal cover, the charging coil is connected with the PCB mainboard, a ferrite plate is further arranged between the charging coil and the metal cover, and a metal support is further arranged between themetal cover and the PCB mainboard. By arranging the metal cover and the ferrite plate, the inductance of the coil can be improved by the ferrite plate and is more stable, an electromagnetic field alsocan be shielded, the magnetic field is prevented from radiating the metal cover, the electromagnetic interference can be shielded and absorbed by the metal cover, the electromagnetic interference radiated from the charging coil can be reduced under the condition of no influence on normal charging, and the vehicle-mounted wireless charger has a relatively good effect of improving electro magneticcompatibility (EMC) of charging equipment.

Description

technical field [0001] The invention relates to the technical field of vehicle wireless charging, in particular to a vehicle wireless charger with low electromagnetic interference. Background technique [0002] With the continuous improvement of science and technology and living standards, wireless charging technology is becoming more and more mature. When wireless charging technology enters the automotive field, EMC electromagnetic compatibility is particularly important. [0003] EMC (Electro Magnetic Compatibility) refers to the ability of a device or system to operate in compliance with the requirements in its electromagnetic environment without causing unbearable electromagnetic interference to any equipment in its environment. Therefore, EMC includes two requirements: on the one hand, it means that the electromagnetic interference generated by the equipment during normal operation cannot exceed a certain limit; on the other hand, it means that the equipment has a certa...

Claims

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Application Information

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IPC IPC(8): H02J50/10H02J50/40H02J50/70H02J7/00
Inventor 曾运强甘子权屈清华
Owner HUIZHOU SPEED WIRELESS TECH CO LTD
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