High-power alpha coil framework, alpha coil and framework using method

Abstract

The invention relates to a high-power alpha coil framework which comprises a framework plate, an annular groove is formed in the surface of the framework plate, the annular groove comprises a first arc-shaped groove set, an inclined groove set and a second arc-shaped groove set, and the first arc-shaped groove set and the second arc-shaped groove set are both arranged in a U shape and oppositely bent. The number of single grooves of the first arc-shaped groove set is one more than that of single grooves of the second arc-shaped groove set, the two ends of the first arc-shaped groove set are connected with the second arc-shaped groove set through inclined groove sets, and the paths of the single grooves formed by connecting the first arc-shaped groove set, the inclined groove sets and the second arc-shaped groove set are spiral. The invention further relates to an alpha coil formed by the framework and a using method of the framework. According to the unique alpha coil framework, the annular groove is formed in the surface of the framework plate, the annular groove comprises the first arc-shaped groove set, the inclined groove set and the second arc-shaped groove set, winding of an alpha coil can be rapidly achieved, and compared with traditional manual winding, the working efficiency can be improved.

Description

Technical Field

[0001] The present invention relates to a coil frame structure, in particular to a high-power alpha coil frame, an alpha coil and a method for using the frame. Background Art

[0002] In the development history of wireless charging technology, the traditional double-layer alpha coil winding method has many bottlenecks that are difficult to break through, especially under the conventional method of winding by a winding machine, the limitations are particularly prominent.

[0003] However, the size of the wound Litz wire is also strictly limited. Litz wire with a wire diameter that is too large cannot be accurately and efficiently wound using the traditional winding process. This not only affects the current carrying capacity and electromagnetic performance optimization of the coil, but also makes it difficult for the entire wireless charging device to achieve a qualitative leap in energy transmission efficiency and stability, hindering its widespread application and in-depth development in fields such as high-power industrial equipment and electric vehicle fast charging. An innovative winding technology is urgently needed to break these constraints and open a new chapter in wireless charging technology.

[0004] In the process of preparing alpha coils with high power and high insulation, the current technical status presents a helpless choice - manual winding. However, although this method meets the needs of high insulation and high power to a certain extent, it falls into an insurmountable dilemma, that is, it cannot guarantee the consistency of the winding coil parameters.

[0005] In the manual winding process, due to the inevitable subjectivity and instability of human operation, key parameters such as the tightness of each winding, the uniformity of the wiring, the spacing between layers, and the accuracy of the starting and ending positions are difficult to accurately control within a unified standard range. This results in obvious differences in key performance indicators such as inductance, internal resistance, and coupling coefficient even for alpha coils of the same batch and design, which seriously reduces work efficiency. In view of this objective technical problem, we specially apply for this invention. Summary of the invention

[0006] In order to solve the above-mentioned problems in the prior art, the present invention provides a high-power alpha coil skeleton, which can improve the above-mentioned deficiencies.

[0007] The present invention relates to a high-power alpha coil skeleton, comprising a skeleton plate, the surface of the skeleton plate is provided with annular grooves, the annular grooves include a first arc groove group, an inclined groove group and a second arc groove group, the first arc groove group and the second arc groove group are both arranged in a U shape and are relatively bent, the single groove of the first arc groove group is one more than the single groove of the second arc groove group, the two ends of the first arc groove group and the two ends of the second arc groove group are connected by the inclined groove group, and the single groove path formed by connecting the first arc groove group, the inclined groove group and the second arc groove group is spiral.

[0008] Furthermore, a rectangular hole is set in the middle of the skeleton plate, and the single groove path formed by connecting the first arc groove group, the inclined groove group and the second arc groove group is spirally surrounded by the outer circumference of the rectangular hole, and the inclined groove group includes left and right sides, and each side has multiple single grooves.

[0009] Furthermore, when the skeleton is located on the left side of the rectangular hole, the innermost single groove on the left side of the second arc groove group is connected to the innermost single groove on the left side of the first arc groove group through the innermost single groove on the left side of the inclined groove group, and the single groove adjacent to the outermost side on the left side of the second arc groove group is connected to the outermost single groove on the left side of the first arc groove group through the outermost single groove on the left side of the inclined groove group; when the skeleton is located on the right side of the rectangular hole, the single groove adjacent to the innermost side on the right side of the second arc groove group and the innermost single groove on the right side of the first arc groove group are connected, and the outermost single groove on the right side of the first arc groove is connected to the outermost single groove on the right side of the second arc groove group through the outermost single groove on the right side of the inclined groove group.

[0010] Furthermore, when the first arc groove group and the second arc groove group are at their respective bending and turning end positions, the outermost single groove on the left side of the second arc groove group and other single grooves adjacent to the single groove are respectively kept horizontally opposite to the outermost single groove on the left side of the first arc groove group and the single grooves adjacent to the single groove (horizontally opposite here means being located on the same straight line), wherein the innermost single groove on the left side of the second arc groove group is kept horizontally opposite to the innermost single groove on the left side of the first arc groove group; the innermost single groove on the right side of the second arc groove group and other single grooves adjacent to the single groove are respectively kept horizontally opposite to the innermost single groove on the right side of the first arc groove group and other single grooves adjacent to the single groove, wherein the single groove adjacent to the outermost on the right side of the second arc groove group is kept horizontally opposite to the outermost single groove on the right side of the first arc groove group.

[0011] Furthermore, there are concave dislocation gaps on the inclined groove group. Specifically, on the edge of a single groove of the inclined groove group, the upper half of the edge is vacant, and the lower half of the edge forms a half groove with the bottom surface of the single groove.

[0012] Furthermore, the outermost single slot middle port in the middle of the second slot group forms two outward entrances.

[0013] Furthermore, the depth of the annular groove is greater than twice the diameter of the accommodated coil.

[0014] Furthermore, connecting ears are arranged at the edge of the frame plate.

[0015] Furthermore, the innermost single groove in the middle of the second groove group has an inclined section.

[0016] The present scheme also provides an alpha coil scheme, which includes an overlapping upper winding wire and a lower winding wire, wherein the upper winding wire and the lower winding wire are both wound in a spiral form, and a hollow area is formed in the middle of the overlapping upper winding wire and the lower winding wire, and the upper winding wire and the lower winding wire are both divided into an upper area, a middle area and a lower area, and the upper area and the lower area are relatively arranged in a U shape, wherein the wire weights of the upper area of ​​the upper winding wire and the upper area of ​​the lower winding wire overlap, and the wire weights of the lower area of ​​the upper winding wire and the lower area of ​​the lower winding wire overlap, and there is a skewed structure in the middle area of ​​the upper winding wire; the left area of ​​the skewed structure is skewed from the outer circle layer to the adjacent inner circle layer at equal intervals, and the right area of ​​the skewed structure is skewed from the inner circle layer to the adjacent outer circle layer at equal intervals.

[0017] The upper layer winding wire and the lower layer winding wire are connected into a whole at the innermost circle of the lower area, and an inclined section is provided at the connection point.

[0018] In addition, the present scheme also provides a method for using the high-power alpha coil skeleton. Specifically, the method is to first start the wire from an entrance of the annular groove on the skeleton plate, starting from the outermost circle of the second arc groove group, and gradually laying it counterclockwise from the outside to the inside, passing through the right side of the second arc groove group, the right side of the inclined groove group, the first arc groove group, the left side of the inclined groove group, and then entering the inner side of the second arc groove group, laying it according to this rule, passing through the inclined section on the inner side of the rectangular hole close to the direction of the second arc groove group, and then gradually laying it counterclockwise from the inside to the outside, and finally coming out of the annular groove on the skeleton plate.

[0019] The present invention designs a unique alpha coil skeleton, which has annular grooves on the surface of the skeleton plate, and the annular grooves include a first arc groove group, an inclined groove group and a second arc groove group. The winding of the alpha coil can be quickly realized. Since the model is formed, it has the same standardized meaning. Compared with the traditional manual winding, the work efficiency can be improved. The alpha coil structure provided by this scheme is unique, and the alpha coil skeleton designed for the present invention has a unique winding method, which can quickly form the alpha coil. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the present invention.

[0021] Figure 2 It is a top view of the present invention.

[0022] Figure 3 for Figure 2 A-A' section view.

[0023] Figure 4 Schematic diagram of the error notch structure on a single slot.

[0024] Figure 5 This is an effect diagram of the present invention.

[0025] Figure 6 Diagram of the Alpha Coil structure formed for the invention.

[0026] Figure 7 Schematic diagram of the path of the upper winding disk and the lower winding disk combination.

[0027] Figure 8 Schematic diagram of the lower winding disk route.

[0028] Fig. 9 Schematic diagram of the upper winding disk route.

[0029] Illustration: 10 skeleton plate, 1 first arc groove group, 2 inclined groove group, 20 edges, 21 inclined connecting grooves, 3 second arc groove group, 4 entry ports, 5 offset notches, 6 rectangular holes, 7 connecting ears, 8 inclined sections, A lower winding disk, B upper winding disk, C skew structure. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0031] like Figure 1-4 ,like Figure 1-4As shown, the present invention relates to a high-power alpha coil skeleton, including a skeleton plate 10, the surface of the skeleton plate has an annular groove, the annular groove includes a first arc groove group 1, an inclined groove group 2 and a second arc groove group 3, the first arc groove group and the second arc groove group are both U-shaped and relatively bent, the first arc groove group has one more single groove than the second arc groove group, the first arc groove group has 8 single grooves, and the marks from the outside to the inside are single groove a2, single groove a3, single groove a4, single groove a5, single groove a6, single groove a7, single groove a8 and single groove a9, the second arc groove group has 9 single grooves, and the marks from the outside to the inside are Single groove b1, single groove b2, single groove b3, single groove b4, single groove b5, single groove b6, single groove b7, single groove b8 and single groove b9, the two ends of the first arc groove group are connected to the second arc groove group through an inclined groove group, the inclined groove group has 8 single grooves, and the marks from outside to inside are single groove c2, single groove c3, single groove c4, single groove c5, single groove c6, single groove c7, single groove c8 and single groove c9 and single groove d2, single groove d3, single groove d4, single groove d5, single groove d6, single groove d7, single groove d8 and single groove d9, the single groove path formed by connecting the first arc groove group, the inclined groove group and the second arc groove group is spirally winding.

[0032] As a technical improvement, a rectangular hole 6 is set in the middle of the skeleton. The single groove path formed by connecting the first arc groove group, the inclined groove group and the second arc groove group is spirally surrounded by the outer circumference of the rectangular hole. The inclined groove group includes left and right sides, and each side has multiple single grooves.

[0033] As a technical improvement, in the skeleton located on the left side of the rectangular hole, the innermost single groove on the left side of the second arc groove group (marked as single groove b9) is connected to the innermost single groove on the left side of the first arc groove group (marked as single groove a9) through the innermost single groove on the left side of the inclined groove group (marked as single groove c9), and the outermost single groove on the left side of the second arc groove group (marked as single groove b2) is connected to the outermost single groove on the left side of the first arc groove group (marked as single groove c2) through the outermost single groove on the left side of the inclined groove group. The first arc groove group is connected to the second arc groove group through the inclined groove group. According to the rule that the first arc groove group is connected to the second arc groove group through the inclined groove group, the other sequentially adjacent single grooves b3, b4, b5, b6, b7 and b8 of the second arc groove group are connected to the other sequentially adjacent single grooves a2, a3, a4, a5, a6, a7 and b8 of the first arc groove group through the other sequentially adjacent single grooves c3, c4, c5, c6, c7 and c8 of the left inclined groove group. The single groove a8 is connected; when the skeleton is located on the right side of the rectangular hole, the single groove adjacent to the innermost side on the right side of the second arc groove group (marked as single groove a8) is connected to the innermost single groove on the right side of the first arc groove group (marked as single groove a9) through the innermost single groove of the right inclined groove group (marked as single groove d9), and the outermost single groove on the right side of the first arc groove (marked as single groove a2) is connected to the outermost single groove on the right side of the second arc groove group (marked as single groove b1) through the outermost single groove of the right inclined groove group ), according to the rule that the first arc groove group is connected with the second arc groove group through the inclined groove group, the other sequentially adjacent single grooves b7, b6, b5, b4, b3 and b2 of the second arc groove group are respectively connected with the other sequentially adjacent single grooves a8, a7, a6, a5, a4 and a3 of the first arc groove group through the other sequentially adjacent single grooves d8, d7, d6, 5d, d4 ​​and 3d of the right inclined groove group.

[0034] As a technical improvement, at the bending end positions of the first arc-shaped slot group and the second arc-shaped slot group, the outermost single slot on the left side of the second arc-shaped slot group (marked as single slot b1) and the other single slots (marked as single slots b2 to single slot b8) adjacent to the single slot are respectively kept horizontally opposite to the outermost single slot on the left side of the first arc-shaped slot group (marked as single slot a2) and the single slots (marked as single slots a3 to single slot a9) adjacent to the single slot. Since the number of the second arc-shaped single slots is one more than the number of the first arc-shaped single slots, the single slot adjacent to the innermost on the left side of the second arc-shaped slot group (marked as single slot b8) and the innermost on the left side of the first arc-shaped slot group (marked as single slot a9) are kept horizontally opposite; accordingly, the innermost single slot on the right side of the second arc-shaped slot group (marked as single slot b9) and the other single slots (marked as single slots b8 to single slots b9) adjacent to the single slot are kept horizontally opposite to each other. 2) They are respectively kept horizontally opposite to the innermost single groove on the right side of the first arc-shaped groove group (marked as single groove a9) and the other single grooves adjacent to the single groove in sequence (marked as single groove a8 to single groove a2). Since the number of the second arc-shaped single groove is one more than the number of the first arc-shaped single groove, the single groove adjacent to the outermost on the right side of the second arc-shaped groove group (marked as single groove b2) is kept horizontally opposite to the outermost single groove on the right side of the first arc-shaped groove group (single groove a2).

[0035] like Figure 4 As shown, as a technical improvement, there is a concave offset notch 5 on the inclined groove group, wherein on the edge 21 of the single groove of the inclined groove group, the upper half of the edge is vacant, and the lower half of the edge and the bottom surface of the single groove form a half groove 201, the vacant position can be used as an area for the upper layer of winding wire to pass through, and the half groove is used as a channel for the lower layer of winding wire to pass through.

[0036] As a technical improvement, the outermost single slot middle port in the middle of the second slot group forms two outward inlet ports 4 .

[0037] As a technical improvement, the depth of the annular groove is greater than twice the diameter of the coil.

[0038] As a technical improvement, connecting ears 7 are provided at the edge of the frame plate.

[0039] As a technical improvement, the innermost single groove in the middle of the second groove group has an inclined section 10.

[0040] like Figure 5 As described above, this scheme uses, wherein the wire body is wound along the single groove from two entrances respectively, and due to the unique structure of the skeleton plate, an upper winding wire B and a lower winding wire A can be formed to form an alpha coil such as Figure 6 shown.

[0041] like Figure 6-9As shown, the present scheme also provides an alpha wire structure, which includes an overlapping upper winding wire and a lower winding wire, the upper winding wire and the lower winding wire are both wound in a spiral form, and the upper winding wire B and the lower winding wire A overlap to form a hollow area in the middle, and the upper winding wire and the lower winding wire are both divided into an upper area, a middle area and a lower area, and the upper area and the lower area are relatively arranged in a U shape, wherein the wire bodies of the upper area of ​​the upper winding wire and the upper area of ​​the lower winding wire overlap, and the wire bodies of the lower area of ​​the upper winding wire and the lower area of ​​the lower winding wire overlap, wherein a skew structure C exists in the middle area of ​​the upper winding area; the left area of ​​the skew structure is skewed from the outer circle layer to the adjacent inner circle layer at equal intervals, and the right area of ​​the skew structure is skewed from the inner circle layer to the adjacent outer circle layer at equal intervals.

[0042] In addition, the present scheme also provides a method for using the high-power alpha coil skeleton. Specifically, the method is to first start the wire from an entrance of the annular groove on the skeleton plate, starting from the outermost circle of the second arc groove group, and gradually laying it counterclockwise from the outside to the inside, passing through the right side of the second arc groove group, the right side of the inclined groove group, the first arc groove group, the left side of the inclined groove group, and then entering the inner side of the second arc groove group, laying it according to this rule, passing through the inclined section on the inner side of the rectangular hole close to the direction of the second arc groove group, and then gradually laying it counterclockwise from the inside to the outside, and finally coming out of the annular groove on the skeleton plate.

Claims

1. A high-power Alpha coil skeleton, characterized in that: It includes a skeleton plate, the surface of which has an annular groove, the annular groove includes a first arc groove group, an inclined groove group and a second arc groove group, the first arc groove group and the second arc groove group are both U-shaped and relatively bent, the first arc groove group has one more single groove than the second arc groove group, the two ends of the first arc groove group and the two ends of the second arc groove group are connected by the inclined groove group, and the single groove path formed by the first arc groove group, the inclined groove group and the second arc groove group is spiral.

2. A high-power Alpha coil skeleton according to claim 1, characterized in that: A rectangular hole is arranged in the middle of the frame plate, and the inclined groove group includes left and right sides, each side having a plurality of single grooves.

3. A high-power Alpha coil skeleton according to claim 2, characterized in that: When the skeleton is located on the left side of the rectangular hole, the innermost single groove on the left side of the second arc groove group is connected to the innermost single groove on the left side of the first arc groove group through the innermost single groove on the left side of the inclined groove group, and the single groove adjacent to the outermost side on the left side of the second arc groove group is connected to the outermost single groove on the left side of the first arc groove group through the outermost single groove on the left side of the inclined groove group; when the skeleton is located on the right side of the rectangular hole, the single groove adjacent to the innermost side on the right side of the second arc groove group is connected to the innermost single groove on the right side of the first arc groove group, and the outermost single groove on the right side of the first arc groove is connected to the outermost single groove on the right side of the second arc groove group through the outermost single groove of the (right) inclined groove group.

4. A high-power Alpha coil skeleton according to claim 3, characterized in that: When the first arc groove group and the second arc groove group are at their respective bending and turning end positions, the outermost single groove on the left side of the second arc groove group and the other single grooves adjacent to the single groove are respectively kept horizontally opposite to the outermost single groove on the left side of the first arc groove group and the single grooves adjacent to the single groove, wherein the innermost single groove of the second arc groove group is kept horizontally opposite to the innermost single groove of the left side of the first arc groove group; the innermost single groove on the right side of the second arc groove group and the other single grooves adjacent to the single groove are respectively kept horizontally opposite to the innermost single groove on the right side of the first arc groove group and the other single grooves adjacent to the single groove, wherein the single groove adjacent to the outermost on the right side of the second arc groove group is kept horizontally opposite to the outermost single groove on the right side of the first arc groove group.

5. A high-power Alpha coil skeleton according to claim 4, characterized in that: There are concave dislocation gaps on the inclined groove group. Specifically, on the edge of a single groove of the inclined groove group, the upper half of the edge is vacant, and the lower half of the edge forms a half groove with the bottom surface of the single groove.

6. A high-power Alpha coil skeleton according to claim 2, characterized in that: The outermost single slot middle port in the middle of the second slot group forms two outward Steering The entrance.

7. A high-power Alpha coil skeleton according to claim 1, characterized in that: The depth of the annular groove is greater than twice the diameter of the accommodated coil.

8. The high-power Alpha coil skeleton according to claim 1, characterized in that: The edge of the frame plate is provided with a connection ear.

9. A high-power Alpha coil skeleton according to claim 1, characterized in that: The innermost single groove in the middle of the second groove group has an inclined section.

10. An alpha coil, characterized in that: It comprises an overlapping upper winding wire and a lower winding wire, both of which are wound in a spiral form, and a hollow area is formed in the middle of the overlapping upper winding wire and the lower winding wire, and both of the upper winding wire and the lower winding wire are divided into an upper area, a middle area and a lower area, and the upper area and the lower area are relatively arranged in a U shape, wherein the wire bodies of the upper area of ​​the upper winding wire and the upper area of ​​the lower winding wire overlap, and the wire bodies of the lower area of ​​the upper winding wire and the lower area of ​​the lower winding wire overlap, and a skewed structure exists in the middle area of ​​the upper winding wire; the left area of ​​the skewed structure is skewed from the outer circle layer to the adjacent inner circle layer at equal intervals, and the right area of ​​the skewed structure is skewed from the inner circle layer to the adjacent outer circle layer at equal intervals.

11. An alpha coil according to claim 10, characterized in that: The upper layer winding wire and the lower layer winding wire are connected into a whole at the innermost circle of the lower area, and an inclined section is provided at the connection point.

12. A method for using a skeleton, for the high-power alpha coil skeleton for wireless power supply according to any one of claims 1 to 9, characterized in that: The method is to first start the wire from an entrance of the annular groove on the skeleton plate, starting from the outermost circle of the second arc groove group, and gradually laying it counterclockwise from the outside to the inside, passing through the right side of the second arc groove group, the right side of the inclined groove group, the first arc groove group, the left side of the inclined groove group, and then entering the inner side of the second arc groove group. Laying it according to this rule, it passes through the inclined section on the inner side of the rectangular hole close to the direction of the second arc groove group, and then gradually laying it counterclockwise from the inside to the outside, and finally coming out of the annular groove on the skeleton plate.

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