CN103248131A - Wireless charging device - Google Patents

Abstract

Translated fromChinese

本发明提供一种无线充电装置，所述无线充电装置包括发射器和接收器，所述发射器包括外壳及置于外壳内多个阵列排布的发射模块，每个所述发射模块包括发射线圈、发射线圈驱动电路和磁屏蔽材料，所述发射线圈驱动电路电连接所述发射线圈以提供驱动信号，所述磁屏蔽材料固定设置在所述发射线圈的下方。本发明的无线充电装置能有效屏蔽电磁感应带来的辐射问题，增强了无线充电装置的安全性能，多个发射线圈阵列排列并分别配有发射线圈驱动电路，使得电子设备在无线充电装置的任意位置均能充电。本发明无线充电装置结构轻薄，使用方便，具有较好的应用开发前景。

The present invention provides a wireless charging device. The wireless charging device includes a transmitter and a receiver. The transmitter includes a housing and a plurality of transmitting modules arranged in an array inside the housing. Each of the transmitting modules includes a transmitting coil. . A transmitting coil driving circuit and a magnetic shielding material, the transmitting coil driving circuit is electrically connected to the transmitting coil to provide a driving signal, and the magnetic shielding material is fixedly arranged below the transmitting coil. The wireless charging device of the present invention can effectively shield the radiation problem caused by electromagnetic induction, and enhance the safety performance of the wireless charging device. Multiple transmitting coil arrays are arranged and respectively equipped with transmitting coil driving circuits, so that the electronic equipment can be operated at any position of the wireless charging device. Any location can be charged. The wireless charging device of the invention has a light and thin structure, is convenient to use, and has good application and development prospects.

Description

A kind of wireless charging device

Technical field

The present invention relates to the wireless charging field, relate to a kind of wireless charging device particularly.

Background technology

Along with development of science and technology, produce increasing mancarried electronic aid, as mobile phone, notebook computer, game machine, walkman etc., these electronic equipments all rely on battery to carry out supply of electric power, in case the electric weight deficiency, and can not find charging device, electronic equipment will quit work, each electronic equipment all must use specific power supply adaptor and complicated electric wire, for life and work bring more inconvenience.Application publication number is the Chinese patent of the CN101938149A structure, the working method that disclose a kind of wireless charging device and has increased a kind of induction installation that can judge the accurate position of electronic equipment, shortcoming is not adopt any measure shielding because the radiation problem that electromagnetic induction brings, Granted publication number provides a kind of wireless charging device for the Chinese utility model patent of CN201904661U, can carry out wireless charging for electronic product effectively, defective is, the radiation that electromagnetic induction is brought does not shield, and can only charge to electronic product at ad-hoc location.

Based on above defective, need a kind of security of operation of exploitation, quality frivolous, be easy to carry and can be to a plurality of electronic equipments wireless charging device of charging simultaneously at an arbitrary position.

Summary of the invention

The technical problem that the present invention solves is, a kind of wireless charging device is provided, can effectively shield the radiation problem that electromagnetic induction brings, strengthened the security performance of wireless charging device, a plurality of transmitting coil arrayed also are furnished with the transmitting coil drive circuit respectively, make this wireless charging device all can charge at an arbitrary position.Wireless charging device structure of the present invention is frivolous, easy to use, has application and development prospect preferably.

The present invention realizes that the technical scheme that goal of the invention adopts is, a kind of wireless charging device, described wireless charging device comprises reflector and receiver, described reflector comprises shell and places the transmitter module of a plurality of array arrangements in the shell, each described transmitter module comprises transmitting coil, transmitting coil drive circuit and magnetic shielding material, described transmitting coil drive circuit is electrically connected described transmitting coil so that the driving signal to be provided, and described magnetic shielding material is fixedly installed on the below of described transmitting coil.

Preferably, be provided with an insulated substrate between described transmitting coil and the described magnetic shielding material.

Preferably, be covered with the transmitting coil supporting bracket on the described insulated substrate.

Preferably, described magnetic shielding material is installed on the transmitting coil drive circuit mounting panel.

Preferably, described transmitting coil supporting bracket and described transmitting coil drive circuit mounting panel are insulation board.

Preferably, described shell comprises loam cake and lower cover.

Preferably, described transmitting coil drive circuit provides alternating current as driving signal for described transmitting coil.

Preferably, described magnetic shielding material is soft magnetic ferrite or magnetic alloy.

Preferably, described transmitting coil by the enamelled wire spiral shell around forming.

Preferably, the thickness of described wireless charging device is 4-6mm.

Beneficial effect of the present invention is, a kind of wireless charging device is provided, all be covered with magnetic shielding material under each transmitting coil, can effectively shield the radiation problem that electromagnetic induction brings, strengthened the security performance of wireless charging device, a plurality of transmitting coil arrayed also are furnished with the transmitting coil drive circuit respectively, make this wireless charging device all can charge at an arbitrary position.Wireless charging device of the present invention is simple in structure, and is easy to use, has application and development prospect preferably.

Description of drawings

Fig. 1 is one embodiment of the present invention wireless charging device structural representation;

Fig. 2 is one embodiment of the present invention transmitting coil, insulated substrate, magnetic shielding material structural representation;

Among the figure, 1 loam cake, 2 transmitting coil supporting brackets, 3 transmitting coils, 4 insulated substrates, 5 magnetic shielding materials, 6 transmitting coil drive circuits, 7 transmitting coil drive circuit mounting panels, 8 lower covers.

Embodiment

The present invention is described in detail below in conjunction with drawings and Examples.

The invention provides a kind of wireless charging device, wireless charging device comprises reflector and receiver, reflector comprises shell and places the transmitter module of a plurality of array arrangements in the shell, each transmitter module comprises transmittingcoil 3, transmittingcoil drive circuit 6 andmagnetic shielding material 5, transmittingcoil drive circuit 6 is electrically connected transmittingcoil 3 so that the driving signal to be provided, andmagnetic shielding material 5 is fixedly installed on the below of transmitting coil 3.Shell comprises loam cake 1 and lower cover 8, played protection, supported the effect of internal structure.Referring to Fig. 1, one embodiment of the present invention wireless charging device structural representation.

Transmittingcoil 3 by the enamelled wire spiral shell around forming, be provided with an insulatedsubstrate 4 between each transmittingcoil 3 and themagnetic shielding material 5, be used for isolating transmittingcoil 3 andmagnetic shielding material 5, be covered with transmitting coil supporting bracket 2 on the insulatedsubstrate 4, transmittingcoil drive circuit 6 provides alternating current for transmittingcoil 3, as driving signal, referring to Fig. 2, one embodiment of the present invention transmitting coil, insulated substrate, the magnetic shielding material structural representation,magnetic shielding material 5 is soft magnetic ferrite or magnetic alloy, and these two kinds of magnetic materials can effectively shield the radiation problem that transmittingcoil 3 produces.Magnetic shielding material 5 is installed in transmitting coil drive circuit mounting panel 7, and transmitting coil drive circuit mounting panel 7 and transmitting coil supporting bracket 2 are insulation board, and the thickness of wireless charging device of the present invention is 4-6mm, and the thickness of one embodiment of the present invention is 5.2mm.

Wireless charging device of the present invention comprises reflector and receiver, receiver generally comprises dc output end, be series at secondary induction coil and rectification reduction voltage circuit between two splicing ears of dc output end, the charging port of electronic equipment and receiver dc output end are to coupling, when needing charging, the electronic equipment charging port can be inserted receiver, both are placed on the reflector, by transmittingcoil 3, electromagnetic induction effect between the secondary induction coil is given receiver with electrical energy transfer, and receiver is through over commutation, the step-down process will receive charges into electronic equipment.

Wireless charging device reflector of the present invention also is furnished with transmittingcoil drive circuit 6 respectively with each transmittingcoil 3 arrayed when design, electronic equipment all can be charged in the optional position of wireless charging device of the present invention.The user who has improved wireless charging device experiences, and has guaranteed the wireless charging device functional integrity.

Inevitably, utilize electromagnetic induction principle to realize the wireless charging device of charge function, can produce radiation problem in the course of the work, each transmittingcoil 3 correspondence of the present invention are equipped withmagnetic shielding material 5, not only shielded electromagnetic radiation, increase the security performance of wireless charging device, also strengthened the mechanical property of wireless charging device.A plurality of transmitting coil arrayed also are furnished with the transmitting coil drive circuit respectively, and this electronic equipment all can be charged in the optional position of wireless charging device, and easy to use, structure is frivolous, has application and development prospect preferably.

Above-described embodiment among the present invention has only been done exemplary description, and those skilled in the art can carry out various modifications to the present invention under the situation that does not break away from the spirit and scope of the present invention after reading present patent application.

Claims (10)

Translated fromChinese

1.一种无线充电装置，所述无线充电装置包括发射器和接收器，其特征在于，所述发射器包括外壳及置于外壳内的多个阵列排布的发射模块，每个所述发射模块包括发射线圈、发射线圈驱动电路和磁屏蔽材料，所述发射线圈驱动电路电连接所述发射线圈以提供驱动信号，所述磁屏蔽材料固定设置在所述发射线圈的下方。1. A wireless charging device, the wireless charging device comprising a transmitter and a receiver, characterized in that the transmitter comprises a casing and a plurality of array-arranged transmitting modules placed in the casing, each of which emits The module includes a transmitting coil, a transmitting coil driving circuit and a magnetic shielding material, the transmitting coil driving circuit is electrically connected to the transmitting coil to provide a driving signal, and the magnetic shielding material is fixedly arranged under the transmitting coil.2.根据权利要求1所述的无线充电装置，其特征在于，所述发射线圈与所述磁屏蔽材料之间设置有一绝缘基板。2. The wireless charging device according to claim 1, wherein an insulating substrate is disposed between the transmitting coil and the magnetic shielding material.3.根据权利要求2所述的无线充电装置，其特征在于，所述绝缘基板上覆有发射线圈支撑板。3 . The wireless charging device according to claim 2 , wherein the insulating substrate is covered with a transmitting coil support plate. 4 .4.根据权利要求1所述的无线充电装置，其特征在于，所述磁屏蔽材料安装在发射线圈驱动电路安装板上。4 . The wireless charging device according to claim 1 , wherein the magnetic shielding material is installed on the transmitting coil driving circuit mounting board.5.根据权利要求3或4所述的无线充电装置，其特征在于，所述发射线圈支撑板和所述发射线圈驱动电路安装板为绝缘板。5. The wireless charging device according to claim 3 or 4, characterized in that, the transmitting coil supporting plate and the transmitting coil driving circuit mounting plate are insulating plates.6.根据权利要求1所述的无线充电装置，其特征在于，所述外壳包括上盖和下盖。6. The wireless charging device according to claim 1, wherein the housing comprises an upper cover and a lower cover.7.根据权利要求1所述的无线充电装置，其特征在于，所述发射线圈驱动电路为所述发射线圈提供交变电流作为驱动信号。7. The wireless charging device according to claim 1, wherein the transmitting coil driving circuit provides an alternating current as a driving signal for the transmitting coil.8.根据权利要求1所述的无线充电装置，其特征在于，所述磁屏蔽材料为软磁铁氧体或磁性合金。8. The wireless charging device according to claim 1, wherein the magnetic shielding material is soft ferrite or magnetic alloy.9.根据权利要求1所述的无线充电装置，其特征在于，所述发射线圈由漆包线螺绕而成。9. The wireless charging device according to claim 1, wherein the transmitting coil is formed by spirally winding enameled wire.10.根据权利要求1所述的无线充电装置，其特征在于，所述无线充电装置的厚度为4-6mm。10. The wireless charging device according to claim 1, characterized in that the thickness of the wireless charging device is 4-6mm.

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