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Boosting type wireless electric energy transmission coil and winding method of coil

A wireless energy transmission and step-up technology, applied in the direction of transformer/inductor coil/winding/connection, transformer/inductor parts, inductor/transformer/magnet manufacturing, etc., can solve the problems of wireless energy transmission limitations, etc., to achieve Strong anti-offset ability, enhanced magnetic field strength, and improved power density

Pending Publication Date: 2020-10-30
GUANGDONG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The disadvantages of the existing magnetically coupled resonant wireless power transmission coils represented by the above patents are: most of the existing magnetically coupled resonant wireless power transmission transmitter coils and receiver coil combinations are step-down or equal pressure, that is, wireless power transmission The combination of coils makes the output voltage less than or equal to the input voltage, which leads to the limitation of wireless power transmission applications in some occasions that require the output voltage to be higher than the input voltage

Method used

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  • Boosting type wireless electric energy transmission coil and winding method of coil
  • Boosting type wireless electric energy transmission coil and winding method of coil
  • Boosting type wireless electric energy transmission coil and winding method of coil

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specific Embodiment 1

[0038] Specific embodiment 1: the coil winding method of the present invention, as figure 2shown. The transmitting coil is a single-layer coil, specifically, the single-layer coil includes a first lead head a1, a coil layer a2, and a first lead tail a3; the outermost coil of the coil layer a2 and the first lead end a1 is connected; the innermost circle of the coil layer a2 is connected to the first lead tail a3. The winding method is as follows: take a piece of wire, bend one end of the wire to form the first lead head a1, and then wind the wire behind the first lead head a1 on the same central axis plane; after winding enough turns, The coil layer a2 is formed; after enough turns are wound, the other end of the wire is bent in the innermost turn to form the first lead tail a3.

[0039] The coil at the receiving end is a double-layer coil, specifically, the double-layer coil includes a second lead head b1, a first coil layer b2, a cross-layer line segment b3, a second coil ...

specific Embodiment 2

[0048] Specific embodiment 2, a boost type wireless power transmission coil according to the present invention is a planar spiral coil, such as Figure 5 Shown: including transmitter coil A1, receiver coil A2, lower magnetic isolation sheet A3 and upper magnetic isolation sheet A4. A cross-sectional view of a planar helical coil is shown in figure 2 As shown, its single-layer structural equation is:

[0049]

[0050] Determine the outer diameter D of the coil according to the working space and site of the coil o ;Determine the inner diameter D of the coil according to the required magnetic field formed by the coil i , and D i =D o -2N(w+p); Determine the total length l of the wire used in the coil according to the outer diameter, inner diameter and number of turns of the coil, and the width c of the coil portion, and the distance a from the middle of the coil width to the central axis, and Among them, p is the distance between each turn of the coil, w is the diam...

specific Embodiment 3

[0052] Specific embodiment 3, a boost type wireless power transmission coil according to the present invention is a planar rounded rectangular coil, such as Figure 6 Shown: including transmitter coil B1, receiver coil B2, lower magnetic isolation piece B3 and upper magnetic isolation piece B4. The cross-sectional view of the plane rounded rectangular coil is as follows image 3 As shown, the outer length L of the coil is determined according to the working space and site of the coil o and the outer width of the coil W o ; Determine the inner length L of the coil according to the required magnetic field formed by the coil i and the inner width of the coil W i , and L i = L o -2N(w+p),W i =W o -2N(w+p); determine the total length l of the wire used by the coil according to the outer length, outer width and number of turns of the coil, and l=2N(L o +W o )-4N(N-1)(w+p); Among them, p is the distance between the coils of each turn, w is the diameter of the wire, and N is ...

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Abstract

The invention provides a boosting type wireless electric energy transmission coil and a coil winding method. The boosting type wireless electric energy transmission coil comprises a transmitting end coil and a receiving end coil, the number of layers of the receiving end coil is larger than that of the transmitting end coil, and the boosting type wireless electric energy transmission coil can playa role in boosting at a receiving end during wireless electric energy transmission. Magnetism isolating sheets are attached to one side of the receiving end coil and one side of the transmitting endcoil, so that the transmission coil has the advantages of being long in transmission distance, wide in range, high in deviation resistance and high in transmission efficiency.

Description

technical field [0001] The invention relates to the field of wireless power transmission, in particular to a step-up wireless power transmission coil and a coil winding method. Background technique [0002] Since the invention of electricity in the 1870s, the invention and application of electricity set off a wave of the second industrial revolution. With the rapid development of economy and technology, the world's demand for electricity is increasing, and the dependence on electricity is also increasing. Electric energy has become an indispensable energy source in modern society. For a long time, power transmission has always used power lines such as cables and wires as the transmission medium. With the continuous enrichment of people's material wealth, the number of electronic products and electrical equipment around everyone is increasing, and people begin to pay more attention to the safety of electricity use. This makes the disadvantages of traditional wired power sup...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J50/00H02J50/12H01F27/28H01F27/29H01F38/14H01F41/061H01F41/071H01F41/076
CPCH02J50/005H02J50/12H01F27/2871H01F27/29H01F38/14H01F41/061H01F41/071H01F41/076H01F2027/2809
Inventor 李志忠梁培伟张俊李优新梁嘉潮
Owner GUANGDONG UNIV OF TECH
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