Anti-parameter offset type wireless power transmission system experiment tool and use method thereof

Abstract

The invention discloses an anti-parameter offset type wireless power transmission system experiment tool and a use method thereof, and belongs to the field of wireless power transmission. The tool comprises a plurality of layers of annular coil molds which are coaxially sleeved with one another, the two ends of each layer of coil mold are each provided with a groove, and the grooves in the same ends of the plurality of layers of coil molds directly face one another and can form a continuous groove; the outer side face of each layer of coil mold is provided with a spirally-wound wire groove, the two ends of each wire groove are communicated with the grooves in the two ends of the corresponding coil mold respectively, and wires can be wound in the wire grooves. The tool can resist parameter deviation, and can eliminate the problem of deviation of system parameters caused by human factors, so as to realize the research of keeping the parameters of the coils of the wireless power system consistent. And the coil matching capacitor is more convenient to manufacture, capacitors with different parameters do not need to be matched according to different coils, and the capacitor manufacturing time is shortened. And time is saved for the process of troubleshooting system problems when faults occur.

Description

Technical Field

[0001] The invention belongs to the field of wireless power transmission, and particularly relates to an experimental tooling for an anti-parameter-offset wireless power transmission system and a using method thereof. Background Art

[0002] In the research of magnetic-coupled wireless power transmission systems, electromagnetic induction between coils is used to achieve energy transmission. Therefore, the winding of coils is an essential step. In existing research, for the step of winding spiral coils, Litz wire is often wound on the surface of the coil, and the wire is fixed by using insulating tape, double-sided tape, customized external wire grooves, etc. Multilayer coils are fixed by customizing a fixing device externally or using other physical connection methods. For the above methods, when winding multiple coils, the parameters of each coil will have different degrees of deviation, which will result in different capacitances and resistances for each coil. In wireless power transmission experiments, if the system fails, due to the different parameters of each coil, it will increase the difficulty of troubleshooting.

[0003] Therefore, an experimental tooling for an anti-parameter-offset wireless power transmission system and a using method thereof are proposed. Summary of the Invention

[0004] Aiming at the deficiencies of the prior art, the purpose of the present invention is to provide an experimental tooling for an anti-parameter-offset wireless power transmission system and a using method thereof, which solves the problems in the prior art.

[0005] The purpose of the present invention can be achieved by the following technical solutions:

[0006] An experimental tooling for an anti-parameter-offset wireless power transmission system includes a plurality of coil molds in the shape of a circular ring and coaxially sleeved with each other. A groove is respectively opened at both ends of each layer of coil mold, and the grooves at the same end of the plurality of coil molds are aligned and can form a continuous groove; a spiral wire groove is opened on the outer side surface of each layer of coil mold, and both ends of the wire groove are respectively communicated with the grooves at both ends of the coil mold, and a wire can be wound in the wire groove.

[0007] Further, the number of the coil molds is three or more.

[0008] Further, the outer diameter of the inner-layer coil mold and the inner diameter of the adjacent outer-layer coil mold are in clearance fit.

[0009] Further, the side grooves of adjacent two layers of coil molds are in the same radial direction. After the wire passes through the groove, relative fixation is achieved.

[0010] Further, the material of the coil mold is polylactic acid.

[0011] Further, the thicknesses of all the coil molds are equal.

[0012] Further, the outer diameter of the innermost coil mold is 81 cm, and the thickness of all the coil molds is 9 cm.

[0013] Further, the cross-section of the groove is square and its size is the same as the wire diameter.

[0014] The usage method of the above experimental tooling for the anti-parameter-offset wireless power transmission system includes the following steps:

[0015] S1. Insert the wire into the groove at one end of the first-layer coil mold and wind and fix it in the wire groove. Then, lead out the excess wire from the groove at the other end of the first-layer coil mold.

[0016] S2. Sleeve the second-layer coil mold outside the first-layer coil mold, and introduce the excess wire into the wire groove of the second-layer coil mold from the groove at one end of the second-layer coil mold. After winding, lead it out from the groove at the other end of the second-layer coil mold.

[0017] S3. Repeat the operation of S2, and wind the wire around the wire grooves of multiple-layer coil molds from the inside to the outside in sequence.

[0018] The application of the above usage method of the experimental tooling for the anti-parameter-offset wireless power transmission system in wireless power transmission experiments.

[0019] Advantages of the present invention:

[0020] The experimental tooling of the present invention has the advantage of anti-parameter offset, which can eliminate the problem of system parameter deviation caused by human factors, so as to realize the research on keeping the parameters of each coil in the wireless power system consistent. It also becomes more convenient to manufacture the coil matching capacitors, without the need to match different parameter capacitors according to different coils, shortening the time for manufacturing capacitors. It saves time for troubleshooting system problems during failures. Description of the Drawings

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to these drawings.

[0022] Figure 1 is a schematic structural diagram of the experimental tooling of the present invention;

[0023] Figure 2 is a schematic side structural diagram of the coil mold of the present invention;

[0024] Figure 3 It is a schematic front view of the coil mold of the present invention;

[0025] Figure 4 It is a winding process diagram of the experimental tooling of the present invention;

[0026] In the figure: 1 - coil mold, 2 - groove, 3 - wire groove. Specific implementation manners

[0027] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.

[0028] Embodiment 1

[0029] As Figures 1 to 3 shown, the experimental tooling of the anti-parameter-offset wireless power transmission system includes multiple layers of coil molds 1 arranged in a circular ring shape and coaxially sleeved with each other. At both ends of each layer of coil mold 1, a groove 2 is respectively opened. The grooves 2 at the same end of multiple layers of coil molds 1 are aligned and can form a continuous groove; a spiral-wound wire groove 3 is opened on the outer side surface of each layer of coil mold 1, and both ends of the wire groove 3 are respectively communicated with the grooves 2 at both ends of the coil mold 1;

[0030] Among them, the cross-section of the groove 2 is square and is consistent with the wire diameter of the wire.

[0031] In this embodiment, the experimental tooling includes three layers of coil molds 1 coaxially sleeved. In other embodiments, the number of coil molds 1 can also be more than three;

[0032] There is a clearance fit between adjacent layers of coil molds 1; relative fixation between adjacent layers of coil molds 1 is achieved by passing a wire through the side groove 2;

[0033] In this embodiment, the material of the coil mold 1 is polylactic acid.

[0034] In this embodiment, the outer diameter of the innermost layer of coil mold 1 is 81 cm, and the thicknesses of all coil molds 1 are equal, all being 9 cm.

[0035] Embodiment 2

[0036] In this embodiment, the usage method (winding method) of the experimental tooling of the anti-parameter-offset wireless power transmission system in Embodiment 1 is introduced. As Figure 4 shown, it includes the following steps:

[0037] S1. Insert the wire into the groove 2 at one end of the first-layer (innermost layer) coil mold 1 and wind and fix it in the wire groove 3. Then, lead out the extra wire from the groove 2 at the other end of the first-layer coil mold 1 (to prevent the extra wire from being located outside the coil mold 1, which may hinder the sleeving of the second-layer coil mold).

[0038] S2. Sleeve the second-layer (middle layer) coil mold 1 outside the first-layer coil mold 1, and lead the above-mentioned extra wire into the wire groove 3 of the second-layer coil mold 1 from the groove 2 at one end of the second-layer coil mold 1. After winding and fixing, lead it out from the groove 2 at the other end of the second-layer coil mold 1.

[0039] S3. Repeat the operation of S2 to continue winding the wire in the wire groove 3 of the third-layer (outermost layer) coil mold 1.

[0040] For other embodiments, when the number of layers of the coil mold of the experimental tooling is greater than three, the wire can be wound from the inside to the outside in the wire grooves of multiple layers of coil molds by repeating the operation of S2 multiple times.

[0041] Embodiment 3

[0042] In this embodiment, it is used to verify the anti-parameter deviation ability of the experimental tooling described in Embodiment 1; and wind the wire according to the method of Embodiment 2. In this embodiment, the number of layers of the coil mold in the experimental tooling is 3; the analysis process is as follows:

[0043] The calculation formula for the self-inductance L of the 3-layer coil is:

[0044]

[0045] Among them, L' is the self-inductance value of each layer of coil, and M' ij is the mutual inductance value between the i-th layer coil and the j-th layer coil.

[0046] The cross-section of the wire groove adopted in the present invention is square, and the size of its side is consistent with the inner diameter size of the wire, so that the wire can be fixed to prevent the wire from deforming, thereby causing unnecessary deviation of the self-inductance value of each layer of coil. When the self-inductance of the 3-layer coil is fixed, the mutual inductance value between the i-th layer coil and the j-th layer coil will also be fixed. Therefore, the self-inductance value of the coil will not change either.

[0047] In the description of this specification, the descriptions referring to the terms "one embodiment", "example", "specific example", etc. mean that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0048] The foregoing has shown and described the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments, and the above embodiments and the descriptions in the specification are only used to illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements fall within the scope of the present invention claimed.

Claims

1. Experimental tooling for an anti-parameter-offset wireless power transmission system, characterized in that It includes multiple coil molds that are circular and coaxially sleeved with each other. At both ends of each layer of coil mold, a groove is respectively opened, and the grooves at the same end of multiple layers of coil molds are aligned and can form a continuous groove; a spiral winding wire groove is opened on the outer side of each layer of coil mold, and both ends of the wire groove are respectively communicated with the grooves at both ends of the coil mold, and a wire can be wound in the wire groove.

2. The experimental tooling for the anti-parameter-offset wireless power transmission system according to claim 1, characterized in that The number of the coil molds is three or more.

3. The experimental tooling for the anti-parameter-offset wireless power transmission system according to claim 1, wherein The outer diameter of the inner layer of coil mold and the inner diameter of the adjacent outer coil mold are in clearance fit.

4. The experimental tooling for the anti-parameter-offset wireless power transmission system according to claim 1, characterized in that The side grooves of adjacent two layers of coil molds are in the same radial direction. After the wire passes through the groove, relative fixation is achieved.

5. The experimental tooling of the anti-parameter-offset wireless power transmission system according to claim 1, characterized in that The material of the coil mold is polylactic acid.

6. The experimental tooling for the anti-parameter-offset wireless power transmission system according to claim 1, characterized in that The thicknesses of all coil molds are equal.

7. The experimental tooling for the anti-parameter-offset wireless power transmission system according to claim 1 or 6, characterized in that, The outer diameter of the innermost layer of coil mold is 81 cm, and the thicknesses of all coil molds are 9 cm.

8. The experimental tooling of the anti-parameter-offset wireless power transmission system according to claim 1, characterized in that, The cross-section of the groove is square and the size is the same as the wire diameter of the wire.

9. A method for using the experimental tooling of the anti-parameter-offset wireless power transmission system according to any one of claims 1-8, characterized in that It includes the following steps: S1. Insert the wire into the groove at one end of the first layer of coil mold and wind and fix it in the wire groove, and then lead out the extra wire from the groove at the other end of the first layer of coil mold; S2. Sleeve the second layer of coil mold on the outside of the first layer of coil mold, and insert the extra wire into the wire groove of the second layer of coil mold from the groove at one end of the second layer of coil mold. After winding is completed, lead it out from the groove at the other end of the second layer of coil mold; S3. Repeat the operation of S2, and wind the wire on the wire grooves of multiple layers of coil molds from the inside to the outside in turn.

10. Application of the usage method of the experimental tooling of the anti-parameter-offset wireless power transmission system described in claim 9 in wireless power transmission experiments.

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