High-power alpha coil framework for wireless power supply

Abstract

The utility model relates to a high-power alpha coil framework for wireless power supply, which comprises a framework plate, an annular groove is arranged on the surface of the framework plate, the annular groove comprises a first arc-shaped groove group, an inclined groove group and a second arc-shaped groove group, the first arc-shaped groove group and the second arc-shaped groove group are arranged in a U shape and are oppositely bent, and the inclined groove group and the second arc-shaped groove group are 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. 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] This utility model relates to a coil frame structure, specifically a high-power alpha coil frame for wireless power supply. Background Technology

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

[0003] However, the size of the Litz wire being wound is also strictly limited. Litz wire with an excessively large diameter cannot be wound accurately and efficiently using traditional winding processes. 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. This hinders its widespread application and in-depth development in fields such as high-power industrial equipment and fast charging of electric vehicles. An innovative winding technology is urgently needed to break these constraints and open a new chapter in wireless charging technology.

[0004] In the pursuit of high-power and high-insulation alpha coil manufacturing, the current technological status quo presents an unavoidable choice—manual winding. However, while this method satisfies the requirements for high insulation and high power to a certain extent, it falls into an insurmountable dilemma: the consistency of the wound coil parameters cannot be guaranteed.

[0005] During manual winding, due to the unavoidable subjectivity and instability of human operation, key parameters such as the tightness of each turn, the uniformity of the winding, the spacing between layers, and the accuracy of the start and end positions are difficult to precisely control within a uniform standard range. This results in significant differences in key performance indicators such as inductance, internal resistance, and coupling coefficient even among alpha coils of the same batch and design, severely reducing work efficiency. In view of this objective technical problem, we hereby apply for this invention. Utility Model Content

[0006] To address the aforementioned problems in the prior art, this invention provides a high-power alpha coil frame for wireless power supply, which can improve upon the above deficiencies.

[0007] This utility model relates to a high-power alpha coil frame for wireless power supply, comprising a frame plate, the surface of which has an circumferential groove, the circumferential groove comprising a first arc-shaped groove group, an inclined groove group, and a second arc-shaped groove group. The first and second arc-shaped groove groups are both U-shaped and relatively curved. The first arc-shaped groove group has one more groove than the second arc-shaped groove group. The two ends of the first and second arc-shaped groove groups are connected by an inclined groove group. The path of the single groove formed by the connection of the first arc-shaped groove group, the inclined groove group, and the second arc-shaped groove group is spiral.

[0008] Furthermore, a rectangular hole is provided in the middle of the skeleton plate, and the single groove path formed by the connection of the first arc-shaped groove group, the inclined groove group and the second arc-shaped groove group is spiral around the outer periphery of the rectangular hole. The inclined groove group includes left and right sides, each side having multiple single grooves.

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

[0010] Furthermore, at their respective bending and turning ends, the outermost single groove on the left side of the second arc-shaped groove group and its adjacent single grooves are respectively horizontally aligned with the outermost single groove on the left side of the first arc-shaped groove group and its adjacent single grooves (meaning they are on the same straight line). The innermost single groove on the left side of the second arc-shaped groove group is horizontally aligned with the innermost single groove on the left side of the first arc-shaped groove group. Similarly, the innermost single groove on the right side of the second arc-shaped groove group and its adjacent single grooves are respectively horizontally aligned with the innermost single groove on the right side of the first arc-shaped groove group and its adjacent single grooves. The outermost single groove on the right side of the second arc-shaped groove group is horizontally aligned with the outermost single groove on the right side of the first arc-shaped groove group.

[0011] Furthermore, the inclined groove group has a concave misalignment notch. Specifically, on the edge of a single groove of the inclined groove group, the upper half of the edge is empty, and the lower half of the edge forms a half groove with the bottom surface of the single groove.

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

[0013] Furthermore, the depth of the circumferential groove is greater than twice the diameter of the coil it accommodates.

[0014] Furthermore, connecting ears are provided at the edge of the skeleton plate.

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

[0016] This invention designs a unique alpha coil frame with circumferential grooves on the surface of the frame plate. The circumferential grooves include a first arc-shaped groove group, an inclined groove group, and a second arc-shaped groove group. This design allows for rapid winding of the alpha coil. Because it forms a model, it has the same standardized meaning, which can improve work efficiency compared with traditional manual winding. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model.

[0018] Figure 2 This is a top view of the present invention.

[0019] Figure 3 for Figure 2 Sectional view of A-A'.

[0020] Figure 4 This is a schematic diagram of the error notch structure on a single slot.

[0021] Figure 5 This is a diagram illustrating the effect of using this utility model.

[0022] Figure 6 This is a structural diagram of the alpha coil formed for the utility model.

[0023] Illustration: 10 skeleton plate, 1 first arc-shaped groove group, 2 inclined groove group, 20 edge, 21 inclined connecting groove, 201 half groove, 3 second arc-shaped groove group, 4 entry port, 5 misaligned notch, 6 rectangular hole, 7 connecting ear, 8 inclined section. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the scope of the present utility model.

[0025] like Figure 1-4This utility model relates to a high-power alpha coil frame for wireless power supply, comprising a frame plate 10. The surface of the frame plate has circumferential grooves, which include a first arc-shaped groove group 1, an inclined groove group 2, and a second arc-shaped groove group 3. Both the first and second arc-shaped groove groups are U-shaped and relatively curved. The first arc-shaped groove group has one more groove than the second arc-shaped groove group. The first arc-shaped groove group has eight grooves, labeled from the outside in as groove a2, groove a3, groove a4, groove a5, groove a6, groove a7, groove a8, and groove a9. The second arc-shaped groove group has nine grooves, labeled from the outside in as... The single slots are arranged in sequence as follows: b1, b2, b3, b4, b5, b6, b7, b8, and b9. The two ends of the first arc-shaped slot group and the second arc-shaped slot group are connected by an inclined slot group. The inclined slot group has 8 single slots, which are marked from the outside to the inside as c2, c3, c4, c5, c6, c7, c8, c9, d2, d3, d4, d5, d6, d7, d8, and d9. The single slot path formed by the connection of the first arc-shaped slot group, the inclined slot group, and the second arc-shaped slot group is a spiral winding shape.

[0026] As a technical improvement, a rectangular hole 6 is provided in the middle of the skeleton. The single groove path formed by the connection of the first arc-shaped groove group, the inclined groove group and the second arc-shaped groove group is spiral and surrounds the outer periphery of the rectangular hole. The inclined groove group includes left and right sides, each side having multiple single grooves.

[0027] As a technical improvement, in the skeleton located to the left of the rectangular hole, the innermost single groove on the left side of the second arc-shaped groove group (denoted as single groove b9) is connected to the innermost single groove on the left side of the first arc-shaped groove group (denoted as single groove a9) through the innermost single groove on the left side of the inclined groove group (denoted as single groove c9). The adjacent single groove on the left side of the second arc-shaped groove group (denoted as single groove b2) is connected to the outermost single groove on the left side of the first arc-shaped groove group (denoted as single groove a9) through the outermost single groove on the left side of the inclined groove group (denoted as single groove c2). Slot a2) is connected. Following the pattern that the first arc-shaped slot group is connected to the second arc-shaped slot group via the inclined slot group, the other sequentially adjacent single slots b3, b4, b5, b6, b7, and b8 of the second arc-shaped slot group are respectively connected to the other sequentially adjacent single slots a2, a3, a4, a5, a6, and a7 of the first arc-shaped slot group via the other sequentially adjacent single slots c3, c4, c5, c6, c7, and c8 of the left inclined slot group. Single groove a8 is connected; in the skeleton located to the right of the rectangular hole, the innermost single groove (denoted as single groove a8) on the right side of the second arc-shaped groove group is connected to the innermost single groove (denoted as single groove a9) on the right side of the first arc-shaped groove group through the innermost single groove (denoted as single groove d9) on the right side of the inclined groove group. The outermost single groove (denoted as single groove a2) on the right side of the first arc-shaped groove group is connected to the outermost single groove (denoted as single groove b1) on the right side of the second arc-shaped groove group through the outermost single groove (denoted as single groove d2) on the right side of the inclined groove group. The first arc-shaped groove group is connected to the second arc-shaped groove group through the inclined groove group. The other sequentially adjacent single grooves b7, b6, b5, b4, b3 and b2 of the second arc-shaped groove group are connected to the other sequentially adjacent single grooves a8, a7, a6, a5, a4 and a3 of the first arc-shaped groove group through the other sequentially adjacent single grooves d8, d7, d6, 5d, d4 ​​and 3d of the right inclined groove group.

[0028] As a technical improvement, at the curved ends of the first and second arc-shaped groove groups, the outermost single groove on the left side of the second arc-shaped groove group (denoted as groove b1) and its adjacent single grooves (denoted as groove b2 to groove b8) are respectively horizontally aligned with the outermost single groove on the left side of the first arc-shaped groove group (denoted as groove a2) and its adjacent single grooves (denoted as groove a3 to groove a9). Since the number of second arc-shaped single grooves is one more than the number of first arc-shaped single grooves, the innermost single groove on the left side of the second arc-shaped groove group (denoted as groove b8) is horizontally aligned with the innermost single groove on the left side of the first arc-shaped groove group (denoted as groove a9). Correspondingly, the innermost single groove on the right side of the second arc-shaped groove group (denoted as groove b9) and its adjacent single grooves (denoted as groove b8 to groove b9) are horizontally aligned. 2) 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 it in sequence (marked as single groove a8 to single groove a2) are kept horizontally opposite to each other. Since the number of second arc-shaped single grooves is one more than the number of first arc-shaped single grooves, the single groove adjacent to the outermost single groove 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).

[0029] like Figure 4 As shown, as a technical improvement, the inclined groove group has a concave misalignment notch 5, wherein on the edge 21 of a single groove of the inclined groove group, the upper half of the edge is empty, and the lower half of the edge forms a half groove 201 with the bottom surface of the single groove. The empty position can be used as the area through which the upper winding wire passes, and the half groove serves as the channel through which the lower winding wire passes.

[0030] As a technical improvement, the middle port of the outermost single slot in the middle of the second slot group forms two outward inlets 4.

[0031] As a technical improvement, the depth of the circumferential groove is greater than twice the diameter of the coil.

[0032] As a technical improvement, a connecting ear 7 is provided at the edge of the skeleton plate.

[0033] As a technical improvement, the innermost single groove in the middle of the second groove group has an inclined section 10.

[0034] like Figure 5 As described above, this solution uses a method where the wire is wound from two inlets along a single-groove path. Due to the unique structure of the skeleton plate, an upper winding wire B and a lower winding wire A can be formed, creating an alpha coil. Figure 6 As shown, this skeleton board can quickly achieve the winding of alpha coils. Because it forms a model, it has the same standardized meaning, which can improve work efficiency compared with traditional manual winding.

Claims

1. A high-power alpha coil frame for wireless power supply, characterized in that: The system includes a frame plate, the surface of which has an circumferential groove. The circumferential groove includes a first arc-shaped groove group, an inclined groove group, and a second arc-shaped groove group. Both the first and second arc-shaped groove groups are U-shaped and curved relative to each other. The first arc-shaped groove group has one more groove than the second arc-shaped groove group. The two ends of the first and second arc-shaped groove groups are connected by an inclined groove group. The path of the single groove formed by the connection of the first arc-shaped groove group, the inclined groove group, and the second arc-shaped groove group is spiral.

2. The high-power alpha coil frame for wireless power supply according to claim 1, characterized in that: The skeleton plate has a rectangular hole in the middle, and the inclined groove group includes left and right sides, each side having multiple single grooves.

3. The high-power alpha coil frame for wireless power supply according to claim 2, characterized in that: When the skeleton is located to the left of the rectangular hole, the innermost single groove on the left side of the second arc-shaped groove group is connected to the innermost single groove on the left side of the first arc-shaped groove group through the innermost single groove on the left side of the inclined groove group. The outermost single groove on the left side of the second arc-shaped groove group is connected to the outermost single groove on the left side of the first arc-shaped groove group through the outermost single groove on the left side of the inclined groove group. When the skeleton is located to the right of the rectangular hole, the innermost single groove on the right side of the second arc-shaped groove group and the innermost single groove on the right side of the inclined groove group are connected to the innermost single groove on the right side of the first arc-shaped groove group. The outermost single groove on the right side of the first arc-shaped groove group is connected to the outermost single groove on the right side of the second arc-shaped groove group through the outermost single groove on the right side of the inclined groove group.

4. The high-power alpha coil frame for wireless power supply according to claim 3, characterized in that: At their respective bending and turning ends, the outermost single groove on the left side of the second arc-shaped groove group and the other single grooves sequentially adjacent to it are respectively horizontally aligned with the outermost single groove on the left side of the first arc-shaped groove group and the other single grooves sequentially adjacent to it. The single groove adjacent to the innermost single groove on the left side of the second arc-shaped groove group is horizontally aligned with the innermost single groove on the left side of the first arc-shaped groove group. Similarly, the innermost single groove on the right side of the second arc-shaped groove group and the other single grooves sequentially adjacent to it are respectively horizontally aligned with the innermost single groove on the right side of the first arc-shaped groove group and the other single grooves sequentially adjacent to it. The outermost single groove on the right side of the second arc-shaped groove group is horizontally aligned with the outermost single groove on the right side of the first arc-shaped groove group.

5. The high-power alpha coil frame for wireless power supply according to claim 4, characterized in that: The inclined groove group has a concave misalignment notch. Specifically, on the edge of a single groove of the inclined groove group, the upper half of the edge is empty, and the lower half of the edge forms a half groove with the bottom surface of the single groove.

6. The high-power alpha coil frame for wireless power supply according to claim 2, characterized in that: The outermost single-slot port in the middle of the second slot group forms two outward-facing... Turning The entrance.

7. The high-power alpha coil frame for wireless power supply according to claim 1, characterized in that: The depth of the circumferential groove is greater than twice the diameter of the coil it accommodates.

8. The high-power alpha coil frame for wireless power supply according to claim 1, characterized in that: Connecting ears are provided at the edge of the skeleton plate.

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

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