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Wireless charging coil and wireless charging system

A wireless charging and electromagnetic coil technology, which is applied in battery circuit devices, current collectors, electric vehicles, etc., can solve the problems that the charging coil is not easy to charge the edge and side of the equipment, and cannot meet the system performance requirements, so as to solve the electromagnetic field leakage and increase the structure intensity effect

Inactive Publication Date: 2018-08-28
SHANGHAI AMPHENOL AIRWAVE COMM ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The first purpose of the present invention is to provide a wireless charging coil to solve the problem that the existing charging coil is not easy to be arranged on the edge or side of the charging device
[0004] The second purpose of the present invention is to provide a wireless charging system to solve the problem that the existing wireless charging method cannot meet the system performance requirements when it is applied to wireless charging on a narrow contact surface

Method used

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  • Wireless charging coil and wireless charging system
  • Wireless charging coil and wireless charging system
  • Wireless charging coil and wireless charging system

Examples

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Embodiment 1

[0034] see figure 1 ,

[0035] A wireless charging coil, comprising: a magnetic rod 1 with slots in the middle, used for winding on the surface, and at the same time, the slotted position is the position with the strongest magnetic field, and the coil formed after winding has the strongest energy transfer capability; an electromagnetic coil 2, Electromagnetic coil 2 is three-dimensionally wound at the slotted position in the middle of magnetic rod 1, the side of electromagnetic coil 2 is flush with the side of magnetic rod 1; The upper part, the lower part, and the back of the slot in the middle are used to solve the problem of electromagnetic field leakage caused by the non-planar facing mode; and at the same time, an electromagnetic wave coupling opening is formed at the front of the slot in the middle of the magnetic rod 1 (it should be noted that The opening mentioned here can be understood as an opening that can pass through electromagnetic waves. As long as electromagne...

Embodiment 2

[0040] A wireless charging system, comprising: a wireless charging power transmitting device for providing electric energy, and a wireless charging power receiving device for receiving electric energy; wherein, the wireless charging power transmitting device includes the wireless charging coil in Embodiment 1 as a power transmitting device The coil is used to provide electromagnetic waves; the wireless charging power receiving device includes the wireless charging coil in Embodiment 1 as a power receiving coil for receiving electromagnetic waves provided by the power transmitting coil.

[0041] By using the wireless charging coil in the present invention as the power transmitting coil and the power receiving coil, the problem that the existing planar coil cannot meet the system performance requirements when it is applied to wireless charging with a narrow contact surface is solved.

[0042] Preferably, see Figure 5 (wherein the power transmission coil is connected to the PCB ...

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PUM

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Abstract

The invention discloses a wireless charging coil, which comprises a magnetic rod provided with a groove in the middle; a magnetic rod which is used for surface winding; an electromagnetic coil which is winded in the middle slotting position of the magnetic rod in a three-dimensional manner; a magnetic shielding sheet material, which is attached to the upper part, the lower portion and the back portion of the middle slotting position so as to solve the problem of electromagnetic field leakage caused by the non-planar positive-to-right mode. An electromagnetic wave coupling opening is formed inthe front part of the groove in the middle of the magnetic rod; the charging coil is easily arranged at the edge of the charging device, and the side surface. The invention further provides a wirelesscharging system. The wireless charging system comprises a wireless charging power transmission device for providing electric energy, and the wireless charging power receiving device is used for receiving electric energy. The wireless charging power transmission device comprises the wireless charging coil in the wireless charging power receiving device, and is used as a wire feeding coil for providing electromagnetic waves. The wireless charging power receiving device comprises a wireless charging coil, which is used as a power receiving coil for receiving electromagnetic waves provided by thepower transmission coil.

Description

technical field [0001] The invention belongs to the field of wireless charging devices, and in particular relates to a wireless charging coil and a wireless charging system applied to a narrow contact surface. Background technique [0002] As wireless charging, a new type of energy transmission method, is gradually accepted by the market, more and more electronic products have begun to introduce this charging technology. The traditional wireless charging method mostly uses planar coils to achieve charging. This charging method means Only a large contact area can ensure sufficient coil Q value and system charging efficiency. For some applications that require edge and side charging, such a narrow contact area does not have sufficient wiring area. Planar coils are Unable to meet system performance requirements. Contents of the invention [0003] The first object of the present invention is to provide a wireless charging coil to solve the problem that the existing charging c...

Claims

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Application Information

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IPC IPC(8): H02J50/10H02J50/20H02J50/70H02J7/00
CPCH02J7/025H02J50/10H02J50/20H02J50/70
Inventor 何大伟蒋希山唐磊
Owner SHANGHAI AMPHENOL AIRWAVE COMM ELECTRONICS CO LTD