CN109088483B

CN109088483B - Loop coil reinforcing coupling device

Info

Publication number: CN109088483B
Application number: CN201810829586.0A
Authority: CN
Inventors: 张献; 倪雪晶; 杨庆新; 王杰; 白雪宁; 高妍; 王朝晖; 金耀; 李阳; 祝丽花; 薛明; 金亮
Original assignee: Tianjin Polytechnic University
Current assignee: Tianjin Polytechnic University
Priority date: 2018-07-25
Filing date: 2018-07-25
Publication date: 2023-09-29
Anticipated expiration: 2038-07-25
Also published as: CN109088483A

Abstract

The invention provides a loop coil reinforced coupling device, which is characterized in that: the high-voltage power supply comprises a substrate, a side wall, an inner peripheral edge, an outer inductance coil, an inner inductance coil and a neutral gear, wherein the side wall extends upwards from the side edge of the substrate; the invention has reasonable structure and good coupling effect, adopts a 'back' -shaped multi-layer composite structure and two sections of independent coils, and the improved coupler shell forms a step through the inner peripheral edge to seal a gap in the horizontal direction, so that the cavity of the coupler can completely prevent signal leakage.

Description

Loop coil reinforcing coupling device

Technical Field

The invention belongs to the field of electromagnetic equipment, and particularly relates to a loop coil reinforced coupling device

Background

Wireless power transmission is a technique for performing spaced power transmission by utilizing electromagnetic induction phenomenon. That is, the alternating current can generate an alternating magnetic field and an alternating electric field, the electromagnetic field can propagate in the air, and the alternating current can be generated for the conductor in the alternating electromagnetic field. One can use the alternating current generated in the conductor to drive electrical equipment such as cell phones, light bulbs, water heaters, televisions, etc.

As shown in fig. 1, most electromagnetic coupling emission assemblies currently use single-layer coils, and the single-layer coils are wound on a paper cylinder or a bakelite framework by turns through insulated wires. In fact, only one coil is wound round by round in the horizontal direction, and then the coil is placed in the assembly; however, the use of such coils may result in partial magnetic field leakage, which may result in a lower overall technical parameter of the overall coupler.

Disclosure of Invention

Therefore, the invention aims to provide the loop coil reinforced coupling device which has reasonable structure and improves the times of the alternating current of the electric-magnetic field.

In order to achieve the above purpose, the technical scheme of the invention is realized as follows:

the utility model provides a return coil reinforcing coupling device, includes base plate, lateral wall, interior surrounding edge, outer inductance coil, interior inductance coil and neutral gear, the base plate side upwards extend the lateral wall, the inboard external inductance coil of close connection of lateral wall, outer inductance coil and interior inductance coil's interval have the neutral gear, interior inductance coil and interior surrounding edge closely encircle.

Furthermore, the inner sides of the side wall and the inner peripheral edge are provided with magnetic shielding layers.

Furthermore, a split capacitor is arranged on one side of the substrate, and the capacitor is respectively connected with the outer inductance coil and the inner inductance coil in a circuit manner.

Further, the number of turns of the outer inductance coil is not less than 4 turns, and the number of turns of the inner inductance coil is not less than 6 turns.

Compared with the prior art, the loop coil reinforced coupling device provided by the invention has the following advantages:

the invention has reasonable structure and good coupling effect, adopts a 'back' multi-layer composite structure and two sections of independent coils, and the improved coupler shell forms a step through the inner peripheral edge to seal a gap in the horizontal direction, so that the cavity of the coupler can completely prevent signal leakage.

Drawings

The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and do not constitute an undue limitation on the invention. In the drawings:

FIG. 1 is a diagram of the magnetic field effect of a conventional coil according to an embodiment of the present invention;

FIG. 2 is a schematic view of a structure according to an embodiment of the present invention;

FIG. 3 is a graph of the magnetic field center enhancement effect according to an embodiment of the present invention;

fig. 4 is a coil wiring diagram according to an embodiment of the present invention.

Reference numerals illustrate:

1-side walls; 2-an external inductance coil; 3-an inner inductor; 4-an inner peripheral edge; 5-neutral; 7-capacitance.

Detailed Description

It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other.

In the description of the invention, it should be understood that the terms "center," "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships that are based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the invention and simplify the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be configured and operate in a particular orientation, and therefore should not be construed as limiting the invention. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the invention, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the creation of the present invention can be understood by those of ordinary skill in the art in a specific case.

The invention will be described in detail below with reference to the drawings in connection with embodiments.

As shown in FIG. 2, the coil-back enhanced coupling device comprises a substrate, a side wall 1, an inner peripheral edge 4, an outer inductance coil 2, an inner inductance coil 3 and a neutral gear 5, wherein the side wall 1 extends upwards from the side wall side edge of the substrate, the inner side of the side wall 1 is tightly connected with the outer inductance coil 2, the neutral gear 5 is arranged between the outer inductance coil 2 and the inner inductance coil 3, and the inner inductance coil 3 and the inner peripheral edge 4 are tightly surrounded.

The inner sides of the side wall 1 and the inner peripheral edge 4 are provided with magnetic shielding layers.

As shown in fig. 4, a split capacitor 7 is disposed on one side of the substrate, and the capacitor 7 is respectively connected with the outer inductance coil 2 and the inner inductance coil 3 in a line manner.

The number of turns of the outer inductance coil is not less than 4, and the number of turns of the inner inductance coil is not less than 6.

As shown in figures 2 and 3, the invention has good coupling effect, adopts a 'back' multi-layer composite structure and two sections of independent coils, and the improved coupler shell forms a step through the inner peripheral edge to seal a gap in the horizontal direction, so that the cavity of the coupler can completely prevent signal leakage, and in addition, the neutral gear 5 enhances the effect of a central magnetic field, so that the best resonance effect is exerted, the loss of signals is greatly reduced, the stability of products is greatly improved, and the performance of the products is integrally improved.

The above embodiments are merely preferred embodiments of the present invention and are not intended to limit the present invention, and any modifications, equivalent substitutions, improvements, etc. within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A loop coil reinforcing coupling device, characterized in that: the high-voltage power supply comprises a substrate, a side wall, an inner peripheral edge, an outer inductance coil, an inner inductance coil and a neutral gear, wherein the side wall extends upwards from the side edge of the substrate;

the inner sides of the side walls and the inner peripheral edges are provided with magnetic shielding layers;

further, a split capacitor is arranged on one side of the substrate, and the capacitor is respectively connected with the outer inductance coil and the inner inductance coil in a circuit manner;

the number of turns of the outer inductance coil is not less than 4 turns, and the number of turns of the inner inductance coil is not less than 6 turns;

adopting a loop-shaped multilayer composite structure, and designing two sections of independent coils; the coupler shell forms a step with the side wall through the inner peripheral edge to seal a gap in the horizontal direction.