Coil and wireless charging equipment

Abstract

The embodiment of the utility model relates to the technical field of wireless charging, and discloses a coil and wireless charging equipment, the wireless charging equipment comprises a circuit board and a supporting assembly, the circuit board comprises a coil part and a wire outlet part, the supporting assembly is arranged on the surface of the wire outlet part, and the supporting assembly is fixedly connected with the surface of the wire outlet part. The supporting assembly is used for supporting and fixing the wire outlet end, and the length and the width of the supporting assembly are matched with those of the wire outlet part. By means of the mode, the coil can still keep the preset shape in the bending state, and therefore the qualified rate of products in the dimension inspection link is ensured.

Description

TECHNICAL FIELD

[0001] The embodiment of the present application relates to the technical field of wireless charging, in particular to a coil and a wireless charging device. BACKGROUND

[0002] In the technical field of wireless charging, a flexible printed circuit board (FPC) coil is a key component, and the FPC coil has advantages such as thinness, softness, and conductivity in the wireless charging industry. The FPC coil is thin, soft, easy to bend and fold, and convenient to install and fix.

[0003] In the implementation process of the embodiment of the present application, the inventor finds that because the FPC material itself has high flexibility, especially in the case of a long outgoing line end, when bending operation is performed, warping and deformation are easily caused. This structural instability directly affects the quality inspection process of the product, resulting in defective products during incoming inspection, thereby causing problems such as low production efficiency and project delay. CONTENT OF THE UTILITY MODEL

[0004] The technical problem solved by the embodiment of the present application is to provide a coil which can maintain its predetermined shape in a bent state, thereby ensuring the pass rate of the product in the dimension inspection link.

[0005] To solve the above technical problem, one technical scheme adopted by the embodiment of the present application is to provide a coil, comprising a circuit board and a support assembly, the circuit board comprising a coil part and an outgoing line part, the support assembly being arranged on the surface of the outgoing line part, the support assembly being fixedly connected with the surface of the outgoing line part, the support assembly being used for supporting and fixing the outgoing line end, wherein the length and width of the support assembly are matched with the outgoing line part.

[0006] Optionally, the support assembly comprises a first support layer and a second support layer, the first support layer being arranged on a first surface of the outgoing line part, the second support layer being arranged on a second surface of the outgoing line part, and the first support layer and the second support layer being connected on both sides of the outgoing line part.

[0007] Optionally, the support assembly further comprises a main body part and an extension part, the main body part being attached to a first surface of the outgoing line part, and the extension part being folded along a side edge of the outgoing line part and attached to a lower surface of the outgoing line part.

[0008] Optionally, the outgoing line part comprises a first wire segment and a second wire segment, the first wire segment and the second wire segment being respectively led out from different positions of the coil part.

[0009] Optionally, the support assembly is further provided with an arc-shaped transition part, and the coil part is arranged adjacent to the arc-shaped transition part.

[0010] Optionally, the support assembly comprises a frame body and a plurality of reinforcing ribs, the plurality of reinforcing ribs are arranged inside the frame body.

[0011] Optionally, the plurality of reinforcing ribs comprise longitudinal reinforcing ribs and transverse reinforcing ribs, the longitudinal reinforcing ribs and the transverse reinforcing ribs are arranged alternately to form a grid structure.

[0012] Optionally, the support assembly is provided with a positioning hole, and the wire outlet portion is provided with a positioning protrusion corresponding to the positioning hole.

[0013] Optionally, the support assembly comprises a plurality of support strips, and the plurality of support strips are arranged at intervals.

[0014] To solve the above technical problems, another technical solution adopted by the embodiment of the present application is to provide a wireless charging device comprising the coil described in any of the above.

[0015] The coil provided by the embodiment of the present application comprises a circuit board and a support assembly, the circuit board comprises a coil portion and a wire outlet portion, the support assembly is arranged on the surface of the wire outlet portion, the support assembly is fixedly connected with the surface of the wire outlet portion, and the support assembly is used for supporting and fixing the wire outlet end, wherein the length and the width of the support assembly match the wire outlet portion. By arranging the support assembly matching the size of the wire outlet portion on the surface of the wire outlet portion and fixedly connecting the support assembly with the wire outlet portion, the technical problem that the wire outlet portion is prone to warping deformation during the bending operation is effectively solved. The support assembly provides stable physical support for the wire outlet portion, so that the wire outlet portion can still maintain its predetermined shape in the bent state. The production efficiency of the product is improved, the manual rework cost is reduced, and the project cycle is effectively shortened. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the specific embodiments or the prior art, the drawings needed to be used in the description of the specific embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn according to the actual proportions.

[0017] Figure 1 is a schematic diagram of the coil of the embodiment of the present application;

[0018] Figure 2 is another schematic diagram of the coil of the embodiment of the present application;

[0019] Figure 3 is a schematic diagram of different embodiments of the coil of the embodiment of the present application. DETAILED DESCRIPTION

[0020] For the purpose of understanding the present application, the present application will be described in further detail below with reference to the drawings and specific embodiments. It needs to be noted that when an element is described as being "fixed to" another element, it can be directly on the other element or one or more intervening elements can be present therebetween. When an element is described as being "connected to" another element, it can be directly connected to the other element or one or more intervening elements can be present therebetween. The terms "upper", "lower", "inner", "outer", "vertical", "horizontal", and the like as used in the present specification indicate the orientation or positional relationship as shown in the drawings and are for the purpose of facilitating the description of the present application and simplifying the description, and therefore cannot be construed as indicating or implying that the device or element indicated thereby must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be construed as limiting the present application. In addition, the terms "first", "second", and the like are used only for the purpose of description and cannot be construed as indicating or implying relative importance.

[0021] Unless otherwise defined, all technical and scientific terms used in the present specification are intended to have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terms used in the specification of the present application are only for the purpose of describing specific embodiments and are not intended to limit the present application. The term "and / or" used in the present specification includes any and all combinations of one or more of the associated listed items.

[0022] In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as there is no conflict.

[0023] Please refer to Figure 1 and Figure 2The coil 100 comprises the circuit board 10 and the support assembly 20. The circuit board 10 comprises the coil part 101 and the wire leading part 102. The coil part 101 is arranged in a ring structure, and is used to form an induced magnetic field. The wire leading part 102 is led out from the coil part 101, and is used to electrically connect an external circuit. The wire leading part 102 comprises the first surface and the second surface. The first surface is located above the wire leading part 102, and the second surface is located below the wire leading part 102. The support assembly 20 is arranged on the first surface and the second surface of the wire leading part 102. Specifically, the support assembly 20 comprises the first support layer 201 and the second support layer (not shown in the figure). The first support layer 201 is arranged on the first surface of the wire leading part 102, and is fixedly connected with the first surface of the wire leading part 102. The second support layer (not shown in the figure) is arranged on the second surface of the wire leading part 102, and is fixedly connected with the second surface of the wire leading part 102, thereby forming all-around covering and protection of the wire leading part 102.

[0024] Please continue to read Figure 2 The wire leading part 102 comprises the first wire segment 121 and the second wire segment 122. One end of the first wire segment 121 is connected with the outer periphery of the coil part 101, and the first wire segment 121 is led out from a first position of the coil part 101. One end of the second wire segment 122 is connected with the outer periphery of the coil part 101, and the second wire segment 122 is led out from a second position of the coil part 101. The first position and the second position are respectively located on two sides of the outer periphery of the coil part 101. The first wire segment 121 and the second wire segment 122 are arranged in parallel, and the lengths of the first wire segment 121 and the second wire segment 122 are equal. The support assembly 20 covers the surfaces of the first wire segment 121 and the second wire segment 122. The first wire segment 121 and the second wire segment 122 are fixedly connected through the support assembly 20, and the support assembly 20 prevents the first wire segment 121 and the second wire segment 122 from relatively displacing.

[0025] Through the above design, the wire leading structure of the coil is more complete. The two wire segments are fixedly connected through the support assembly 20, the stability of the overall structure is improved, and the reliability of electrical connection is ensured.

[0026] The first support layer 201 and the second support layer (not shown in the figure) are respectively arranged on both sides of the outgoing line part 102, and the edge of the first support layer 201 is connected with the edge of the second support layer (not shown in the figure). The first support layer 201 and the second support layer (not shown in the figure) cover the entire surface of the outgoing line part 102.

[0027] In the embodiment of the present application, the length and width of the support assembly 20 match the outgoing line part 102, and the length of the support assembly 20 is equal to the length of the outgoing line part 102, and the width of the support assembly 20 is equal to the width of the outgoing line part 102. The support assembly 20 prevents the outgoing line part 102 from being warped and deformed through the fixed connection.

[0028] Please refer to Figure 3 , the support assembly 20 adopts a folding integrated structure, and the support assembly 20 includes the main body part 203, the extension part (not shown in the figure) and the arc-shaped transition part 205.

[0029] The main body part 203 is attached to the first surface of the outgoing line part 102, and the main body part 203 is fixedly connected with the first surface of the outgoing line part 102. The extension part (not shown in the figure) is connected with the two side edges of the main body part 203, and the extension part (not shown in the figure) is folded downward along the side edge of the outgoing line part 102 and attached to the second surface of the outgoing line part 102. The extension part (not shown in the figure) is fixedly connected with the second surface of the outgoing line part 102. The width of the extension part (not shown in the figure) is equal to the thickness of the outgoing line part 102. The arc-shaped transition part 205 is arranged at one end of the support assembly 20 close to the coil part 101, and the arc-shaped transition part 205 is adjacent to the coil part 101. The shape of the arc-shaped transition part 205 is adapted to the outer peripheral contour of the coil part 101. The arc-shaped transition part 205 smoothly connects the main body part 203 and the coil part 101, and prevents stress concentration of the outgoing line part 102 at the connection of the coil part 101. In the embodiment of the present application, the folding integrated structure of the support assembly 20 forms a protective covering for the outgoing line part 102 through the main body part 203 and the extension part (not shown in the figure), and provides a stress transition through the arc-shaped transition part 205, effectively preventing the outgoing line part 102 from being warped and deformed.

[0030] Please continue to refer to Figure 3The support assembly 20 adopts a grid reinforcing structure, and the support assembly 20 comprises the frame body 206 and the plurality of reinforcing ribs 207. The frame body 206 has a rectangular structure, and in the embodiment, the length and width of the frame body 206 are adapted to the outer contour of the outlet portion 102. The frame body 206 is arranged on the first surface of the outlet portion 102, and the frame body 206 is fixedly connected with the first surface of the outlet portion 102. The four edges of the frame body 206 form a closed ring structure.

[0031] In some preferred embodiments, the plurality of reinforcing ribs 207 are arranged inside the frame body 206. The plurality of reinforcing ribs 207 comprise the longitudinal reinforcing ribs 207 and the transverse reinforcing ribs 207. The longitudinal reinforcing ribs 207 are arranged along the length direction of the frame body 206, and the two ends of each longitudinal reinforcing rib 207 are connected with the opposite edges of the frame body 206, respectively. The transverse reinforcing ribs 207 are arranged along the width direction of the frame body 206, and the two ends of each transverse reinforcing rib 207 are connected with the opposite edges of the frame body 206, respectively. The longitudinal reinforcing ribs 207 and the transverse reinforcing ribs 207 are arranged perpendicularly and crossly connected with each other, forming the grid structure. The grid structure divides the internal area of the frame body 206 into a plurality of grid units.

[0032] According to the above embodiment, the support assembly 20 with the grid reinforcing structure increases the structural strength of the support assembly 20 by the cooperation of the frame body 206 and the plurality of reinforcing ribs 207, and improves the support and fixing effect on the outlet portion 102.

[0033] In some preferred embodiments, the support assembly 20 adopts a positioning and heat dissipation structure, and the support assembly 20 further comprises a plurality of support bars (not shown in the figure). The plurality of support bars are arranged at intervals along the length direction of the outlet portion 102. The length direction of each support bar is parallel to the length direction of the outlet portion 102. The two ends of each support bar are fixedly connected with the ends of the support assembly 20, respectively. The upper surface of each support bar is fixedly connected with the first surface of the outlet portion 102. The ventilation and heat dissipation space is formed between two adjacent support bars, and the ventilation and heat dissipation space penetrates through the two ends of the support assembly 20.

[0034] In some preferred embodiments, the support assembly 20 is provided with positioning holes (not shown) at both ends thereof. The positioning holes are through holes penetrating through the thickness direction of the support assembly 20. The wire outlet portion 102 is provided with positioning protrusions corresponding to the positions of the positioning holes. The positioning protrusions protrude from the surface of the wire outlet portion 102 and are inserted into the positioning holes.

[0035] The support assembly 20 supports and fixes the wire outlet portion 102 through the plurality of support strips, and the ventilation and heat dissipation space between the plurality of support strips facilitates heat dissipation of the wire outlet portion 102. The cooperation between the positioning protrusions and the positioning holes ensures the accuracy of the installation position of the support assembly 20 and the wire outlet portion 102.

[0036] The embodiments of the present application provide a coil 100, which comprises a circuit board 10 and a support assembly 20. The circuit board 10 comprises a coil portion 101 and a wire outlet portion 102. The support assembly 20 is arranged on the surface of the wire outlet portion 102 and is fixedly connected to the surface of the wire outlet portion 102. The support assembly 20 is used for supporting and fixing the wire outlet portion 102. The length and width of the support assembly 20 are matched with those of the wire outlet portion 102. The support assembly 20 matched with the size of the wire outlet portion 102 is arranged on the surface of the wire outlet portion 102, and the support assembly 20 and the wire outlet portion 102 are firmly combined through fixed connection. Thus, the technical problem that the wire outlet portion 102 is prone to warping deformation during the bending operation is effectively solved. The support assembly 20 provides stable physical support for the wire outlet portion 102, so that the wire outlet portion 102 can maintain the predetermined shape in the bent state. The production efficiency of the product is improved, the manual rework cost is reduced, and the project cycle is effectively shortened.

[0037] The present application further provides a wireless charging device, which comprises the coil 100 described above. The specific structure and functions of the wireless charging device can be referred to the above embodiments, which will not be described here.

[0038] The above only describes the embodiments of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation based on the content of the specification and drawings, or direct or indirect application in other related technical fields, is also included in the patent protection scope of the present application.

Claims

1. A coil, characterized by, The coil comprises: a circuit board comprising a coil part and a wire outlet part; a support assembly arranged on a surface of the wire outlet part, the support assembly being fixedly connected to the surface of the wire outlet part, and the support assembly being used for supporting and fixing the wire outlet part, wherein the length and width of the support assembly match those of the wire outlet part.

2. The coil according to claim 1, wherein the support assembly comprises a first support layer arranged on a first surface of the wire outlet part and a second support layer arranged on a second surface of the wire outlet part, and the first support layer and the second support layer are connected on both sides of the wire outlet part.

3. The coil according to claim 1, wherein the support assembly further comprises a main body part attached to the first surface of the wire outlet part and an extension part folded along a side edge of the wire outlet part and attached to a lower surface of the wire outlet part.

4. The coil according to claim 1, wherein the wire outlet part comprises a first wire segment and a second wire segment, and the first wire segment and the second wire segment are respectively led out from different positions of the coil part.

5. The coil according to claim 1, wherein the support assembly further comprises an arc-shaped transition part, and the coil part is arranged adjacent to the arc-shaped transition part.

6. The coil according to claim 1, wherein the support assembly further comprises a frame body and a plurality of reinforcing ribs arranged inside the frame body.

7. The coil according to claim 6, wherein the plurality of reinforcing ribs comprise longitudinal reinforcing ribs and transverse reinforcing ribs, and the longitudinal reinforcing ribs and the transverse reinforcing ribs are arranged alternately to form a grid structure.

8. The coil according to claim 1, wherein the support assembly is provided with a positioning hole, and the wire outlet part is provided with a positioning protrusion corresponding to the positioning hole.

9. The coil according to claim 1, wherein the support assembly comprises a plurality of support strips, and the plurality of support strips are arranged at intervals.

10. A wireless charging device, comprising: The coil according to any one of claims 1-9.

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