Device for fixing coil wire and coil processing tool

Abstract

The application relates to a device for fixing coil wire and a coil processing tool, which comprises a base, a coil placing assembly fixed on the base, the coil placing assembly being provided with a avoiding part, a coil positioning assembly installed on the base and penetrating through the avoiding part, and a coil wire limiting assembly comprising a pressing structure, a connecting structure and a limiting cover plate, wherein the pressing structure comprises a pressing part, the pressing structure is movably arranged on the base, the limiting cover plate is connected with the pressing structure through the connecting structure, the limiting cover plate drives the pressing part to press the root of the coil inner wire through the connecting structure, and the coil is located between the coil placing assembly and the limiting cover plate. The technical scheme of the application effectively solves the problem that the coil wire position and direction are difficult to control when the coil is processed in the prior art.

Description

Technical Field

[0001] This application relates to the technical field of coil processing equipment, and more specifically, to a device for fixing coil leads and a coil processing fixture. Background Technology

[0002] Wireless charging devices must contain components that can convert alternating current into alternating magnetic field, and these components are usually wound coils or FPC coils.

[0003] With technological advancements, the requirements for coil winding are becoming increasingly stringent, demanding thinner coils and stricter dimensional control. Achieving extremely small coil dimensions necessitates the use of small-diameter, single-strand planar winding. While this method allows for thinner and smaller coils, the inner lead wire is quite flexible, making it difficult to control its position and direction. Summary of the Invention

[0004] This application provides a device for fixing the coil lead and a coil processing fixture to solve the problem that the lead position and direction of the inner lead of the coil are difficult to control during the processing of the coil in the prior art.

[0005] A device for fixing a coil lead according to this application includes: a base; a coil placement assembly fixed on the base, the coil placement assembly having a clearance portion; a coil positioning assembly mounted on the base and extending through the clearance portion; and a coil lead limiting assembly, the coil lead limiting assembly including a pressing structure, a connecting structure, and a limiting cover plate, the pressing structure including a pressing part, the pressing structure being movably disposed on the base, the limiting cover plate being connected to the pressing structure through the connecting structure, the limiting cover plate driving the pressing part to press against the root of the coil lead, and the coil being located between the coil placement assembly and the limiting cover plate.

[0006] Furthermore, the pressing structure includes a translation plate, a driving part, and a pressing arm. The pressing arm and the driving part are both located on the translation plate. The driving part cooperates with the connecting structure. The first end of the pressing arm is connected to the translation plate, and the second end of the pressing arm extends out of the clearance part. The pressing part is located at the second end of the pressing arm.

[0007] Furthermore, the pressing part is a pressing groove.

[0008] Furthermore, the width of the pressure groove is greater than the thickness of a single wire but less than the thickness of two wires.

[0009] Furthermore, the driving unit includes a driving block, the side of the driving block opposite to the base has a driving groove, the connecting structure includes a connecting rod, the connecting rod is rotatably disposed in the driving groove, the cross-section of the axis perpendicular to the connecting rod is a non-circular surface, and the two ends of the connecting rod are respectively fixedly connected to the limiting cover plate.

[0010] Furthermore, the cross-section of the connecting rod includes a straight line and an arc, with the two ends of the straight line connected to the two ends of the arc to form a closed plane.

[0011] Furthermore, the base has a bottom plate and a vertical plate, the vertical plate being fixedly disposed on the side of the bottom plate away from the pressing part, and the pressing structure also includes a first elastic member, which elastically presses against the vertical plate and the pressing structure.

[0012] Furthermore, the device for fixing the coil lead also includes a lead fixing assembly, which includes a pivot frame and a wire clamp structure. The wire clamp structure is mounted on the pivot frame, and the pivot frame is rotatably mounted on the coil placement assembly. The pivot frame has a wire clamping position and a storage position.

[0013] Furthermore, the pivot frame includes two side rods and a connecting block. The first ends of the two side rods are rotatably connected to the two sides of the coil placement assembly, and the two ends of the connecting block are connected to the second ends of the two side rods, respectively. The connecting block has a receiving groove, and a wire clamp structure is set in the receiving groove. The pivot frame is in the wire clamping position and the opening of the receiving groove is opposite to the base.

[0014] Furthermore, a pressure plate is provided in the middle of the receiving groove, and the wire clamp structure includes two pressure blocks and two second elastic members. Each second elastic member elastically presses against the pressure block and the end arm of the receiving groove, and the two pressure blocks press against the two sides of the pressure plate respectively.

[0015] Furthermore, there are multiple clearance parts, coil positioning components, pressing structures, and wire clamp structures. Multiple clearance parts are arranged in a one-to-one correspondence with multiple coil positioning components, multiple clearance parts are arranged in a one-to-one correspondence with multiple pressing structures, and multiple clearance parts are arranged in a one-to-one correspondence with multiple wire clamp structures.

[0016] According to another aspect of this application, a coil processing fixture is also provided, which includes a fixture body and a device for fixing the coil lead-out, wherein the device for fixing the coil lead-out is the aforementioned device for fixing the coil lead-out.

[0017] By applying the technical solution of this application, the coil positioning assembly can achieve the positioning of the coil winding shape. The coil is located on the coil placement assembly, and the root of the inner lead of the coil can be effectively restricted by the pressing structure. That is, the appearance direction and position of the inner lead of the coil are effectively controlled. The limiting cover plate and the coil placement assembly cooperate to limit the coil. The limiting cover plate drives the pressing structure through the connecting structure, thus effectively realizing the linkage between limiting the coil and limiting the inner lead of the coil. The technical solution of this application effectively solves the problem in the prior art that it is difficult to control the appearance position and direction of the inner lead of the coil during processing. Attached Figure Description

[0018] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 A three-dimensional structural diagram of an embodiment of the device for fixing the coil lead of this application in a pressed state is shown;

[0021] Figure 2 It shows Figure 1 A top view of the device for fixing the coil output wire;

[0022] Figure 3 It shows Figure 1 A three-dimensional structural diagram of the wire fixing component of the device for fixing the coil wire when it is open;

[0023] Figure 4 It shows Figure 3 A top view of the device for fixing the coil output wire;

[0024] Figure 5 It shows Figure 1 A schematic diagram of the internal three-dimensional structure of the device for fixing the coil output wire;

[0025] Figure 6 It shows Figure 5 A top view of the device for fixing the coil output wire;

[0026] Figure 7 It shows Figure 1 A partial cross-sectional view of the device for fixing the coil output wire;

[0027] Figure 8 It shows Figure 7 A top view of the device for fixing the coil output wire;

[0028] Figure 9 It shows Figure 1 A three-dimensional structural diagram of the pressure structure of the device for fixing the coil output wire;

[0029] Figure 10 It shows Figure 9 A front view schematic diagram of the pressure-resistant structure.

[0030] The above figures include the following reference numerals:

[0031] 10. Base; 11. Base plate; 12. Vertical plate; 20. Coil placement assembly; 21. Clearance part; 30. Coil positioning assembly; 40. Coil lead-out limiting assembly; 41. Pressing structure; 411. Translation plate; 412. Drive part; 413. Pressing arm; 414. Pressing groove; 42. Connecting structure; 43. Limiting cover plate; 50. Lead-out fixing assembly; 51. Pivot frame; 511. Receiving groove; 52. Wire clamp structure; 521. Pressing block; 522. Second elastic element; 53. Pressing plate; 100. Coil. Detailed Implementation

[0032] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0033] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0034] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways, rotated 90 degrees, or in other orientations, and the spatial relative descriptions used herein will be interpreted accordingly.

[0035] like Figures 1 to 10As shown, the device for fixing the coil lead in this embodiment includes: a base 10, a coil placement assembly 20, a coil positioning assembly 30, and a coil lead limiting assembly 40. The coil placement assembly 20 is fixed on the base 10 and has a clearance portion 21. The coil positioning assembly 30 is mounted on the base 10 and extends through the clearance portion 21. The coil lead limiting assembly 40 includes a pressing structure 41, a connecting structure 42, and a limiting cover plate 43. The pressing structure 41 includes a pressing portion and is movably disposed on the base 10. The limiting cover plate 43 is connected to the pressing structure through the connecting structure 42. The limiting cover plate 43 drives the pressing portion through the connecting structure 42 to press against the root of the coil lead, and the coil is located between the coil placement assembly 20 and the limiting cover plate 43.

[0036] By applying the technical solution of this embodiment, the coil positioning component 30 can achieve the positioning of the coil winding shape. The coil 100 is located on the coil placement component 20. The pressing structure 41 can effectively limit the root of the inner wire of the coil 100, that is, the appearance direction and position of the inner wire of the coil 100 are effectively controlled. The limiting cover plate 43 and the coil placement component 20 cooperate to limit the coil 100. The limiting cover plate 43 drives the pressing structure 41 through the connecting structure 42, thus effectively realizing the linkage between limiting the coil 100 and limiting the inner wire of the coil 100. The technical solution of this embodiment effectively solves the problem in the prior art that it is difficult to control the appearance position and direction of the inner wire of the coil 100 during processing.

[0037] like Figure 3 , Figure 5 and Figure 6 As shown, in this embodiment, the pressing structure 41 includes a translational plate 411, a driving part 412, and a pressing arm 413. Both the pressing arm 413 and the driving part 412 are located on the translational plate 411. The driving part 412 cooperates with the connecting structure 42. The first end of the pressing arm 413 is connected to the translational plate 411, and the second end of the pressing arm 413 extends out of the clearance part 21. The pressing part is located at the second end of the pressing arm 413. The above structure is compact and easy to operate. It should be noted that there are two translational plates 411, each with a driving part 412 and a pressing arm 413. Each translational plate 411 corresponds to one clearance part 21, and there are two clearance parts 21.

[0038] like Figure 9 and Figure 10 As shown, in this embodiment, the pressing part is a pressing groove 414. The above structure has low processing cost and is easy to operate.

[0039] It should be noted that, as Figures 8 to 10As shown, the width of the pressing groove 414 is greater than the thickness of a single wire but less than the thickness of two wires. This avoids problems such as bending at the root of the coil 100 and failure to control the wire exit position if two wires are simultaneously accommodated in the pressing groove 414. The thickness of the wire here is the minimum side of the cross-section perpendicular to the extension direction of the wire; if the cross-section of the wire is circular, the thickness here is the diameter. The opening of the pressing groove 414 faces the side of the nearest coil 100, and the opening of the pressing groove 414 has a guide arc surface.

[0040] like Figure 5 and Figure 6 As shown, in this embodiment, the driving unit 412 includes a driving block. The driving block has a driving groove on the side opposite to the base 10. The connecting structure 42 includes a connecting rod, which is rotatably disposed within the driving groove. The cross-section perpendicular to the axis of the connecting rod is a non-circular surface. Both ends of the connecting rod are fixedly connected to the limiting cover plate 43. This allows adjustment of the pressure on the inner wire of the coil 100 by changing the distance between the inner wall of the driving groove and the connecting rod. It should be noted that the aforementioned non-circular surface can be elliptical, semi-circular, or a plane formed by a parabola. In this embodiment, one side is a straight line and the other side is an arc, with the ends of the arc connected to the ends of the straight line to form a closed cross-section. The non-circular surface in this embodiment is a semi-circular surface. This structure is easy to process, has strong operational regularity, and is easy to control.

[0041] It should be noted that the limiting cover plate 43 has a mounting hole that matches the cross-section of the connecting rod, i.e., the mounting hole is semi-circular. This effectively ensures that there is no relative displacement between the limiting cover plate 43 and the connecting rod. The limiting cover plate 43 has a pressing position and a storage position. The cross-section of the connecting rod is semi-circular, and the coil placement assembly 20 has a circular through hole. The above-mentioned structure of the connecting rod ensures a good tightness in its fit with the circular through hole.

[0042] like Figure 5 and Figure 6As shown, in the technical solution of this embodiment, the cross-section of the connecting rod includes a straight line and an arc, with the two ends of the straight line connected to the two ends of the arc to form a closed plane. The above structure is easy to process and has strong operational regularity. When the coil 100 is not pressed, the arc surface of the connecting rod is in contact, and at this time the force of the connecting rod on the pressing structure 41 is greater than the elastic force of the first elastic member on the pressing structure 41. When the pressing structure 41 presses against the coil 100, the plane of the connecting rod is in contact with the inner wall of the pressing groove. At this time, the first elastic member applies an elastic force to the pressing structure 41, pushing the pressing structure 41 to stay close to the outer wall of the connecting rod, and the distance between the connecting rod and the upright plate 12 decreases, so the pressing structure 41 moves forward to press against the coil 100. The above structure, through the linkage between the limiting cover plate 43, the connecting rod and the pressing structure 41, effectively realizes the overall limiting of the coil 100 by the limiting cover plate 43 and the pressing arm 413 pressing against the inner wire of the coil 100.

[0043] It should be noted that the limiting cover plate 43 has positioning holes, and the coil placement assembly 20 is provided with positioning posts. The end of the positioning post away from the base 10 is tapered. When the positioning post and the positioning hole are engaged, not only can positioning on the plane be achieved, but also positioning of the distance between the limiting cover plate 43 and the coil placement assembly 20 can be achieved. The above structure can avoid the limiting cover plate 43 exerting too much force on the coil 100, which could damage the coil 100, and can effectively prevent problems such as coil wire misalignment and loosening.

[0044] like Figure 1 As shown, in this embodiment, the base 10 has a base plate 11 and a vertical plate 12. The vertical plate 12 is fixedly disposed on the side of the base plate 11 away from the pressing part. The pressing structure 41 also includes a first elastic member, which elastically presses against the vertical plate 12 and the pressing structure 41. The above structure is compact and easy to operate. It should be noted that the first elastic member is a spring. The base plate 11 and the vertical plate 12 can be an integral structure, or they can be connected together by fasteners, or glued together, etc.

[0045] like Figures 1 to 8 As shown, in this embodiment, the device for fixing the coil lead-out further includes a lead-out fixing component 50. The lead-out fixing component 50 includes a pivot frame 51 and a wire clamp structure 52. The wire clamp structure 52 is mounted on the pivot frame 51, which is rotatably mounted on the coil placement assembly 20. The pivot frame 51 has a wire clamping position and a storage position. The lead-out fixing component 50 further strengthens the restriction on the lead-out of the coil 100. The pivot frame 51 helps protect the wire clamp structure 52 and saves space in the device for fixing the coil lead-out.

[0046] like Figure 1 and Figure 5As shown, in this embodiment, the pivot frame 51 includes two side rods and a connecting block. The first ends of the two side rods are rotatably connected to both sides of the coil placement assembly 20, and the two ends of the connecting block are connected to the second ends of the two side rods. The connecting block has a receiving groove 511, and a wire clamp structure 52 is disposed within the receiving groove 511. The pivot frame 51 is in the wire clamping position, and the opening of the receiving groove 511 is opposite to the base 10. The above structure is compact, avoids interference, and makes the overall device lighter. The connecting block can be a rod-shaped structure, and the connecting block is provided with two receiving grooves 511, which correspond to two clearance portions 21 respectively.

[0047] It should be noted that when the pivot frame 51 is in the clamping position, the opening of the receiving groove 511 faces upward; when the pivot frame 51 is in the retracted position, the opening of the receiving groove 511 faces downward. This effectively protects the wire clamp structure 52, facilitates transportation, and makes the structure compact. The side wall of the receiving groove 511 has a receiving gap through which the wire can pass to engage with the wire clamp structure 52. The other side of the receiving groove 511 has no side wall, which effectively avoids the presence of the coil 100. The width of the receiving gap is adapted to the thickness of a single coil.

[0048] like Figure 1 and Figure 5 As shown in the technical solution of this embodiment, a pressing plate 53 is provided in the middle of the receiving groove 511. The wire clamp structure 52 includes two pressing blocks 521 and two second elastic members 522. Each second elastic member 522 elastically presses against the pressing block 521 and the end arm of the receiving groove 511. The two pressing blocks 521 press against the two sides of the pressing plate 53 respectively. The above-mentioned wire clamp structure 52 is easy to operate. When it is necessary to clamp the wire, the pressing block 521 is pushed by external force. There is a gap between the pressing block 521 and the pressing plate 53. The wire of the coil 100 is placed between the pressing block 521 and the pressing plate 53. The pressing block 521 and the pressing plate 53 cooperate to press the wire of the coil 100.

[0049] It should be noted that when the pivot frame 51 is in the retracted position, the pivot frame 51 and the base 10 are magnetically fixed. This fixing can also be achieved by installing a fixing block on the base 10, with magnetic material on the fixing block. This fixing between the pivot frame 51 and the base 10 avoids problems such as wire vibration during transport when the device fixing the coil output is in motion. The magnetic fixing method between the pivot frame 51 and the base 10 offers high operational efficiency and a simple structure. Figure 1 Magnets are installed on both the central rotating frame 51 and the base 10, as shown in the figure at the positions marked N and S.

[0050] like Figures 1 to 4As shown, in this embodiment, there are multiple clearance parts 21, coil positioning components 30, pressing structures 41, and wire clamp structures. Each clearance part 21 corresponds to one of the multiple coil positioning components 30, one of the multiple clearance parts 21 corresponds to one of the multiple pressing structures 41, and one of the multiple clearance parts 21 corresponds to one of the multiple wire clamp structures. This structure offers high operational efficiency, eliminating the need for a separate device for each coil and reducing processing costs.

[0051] It should be noted that the coil placement assembly 20 includes a coil placement platform, and the pivot frame 51 is rotatably mounted on both sides of the coil placement platform. The upper surface of the coil placement platform is flat. A fixing clip is provided between the coil placement assembly 20 and the base 10, and the fixing clip can be pried open by external force.

[0052] This application also provides a coil processing fixture. The coil processing fixture includes a fixture body and a device for fixing the coil lead, wherein the device for fixing the coil lead is the aforementioned device for fixing the coil lead.

[0053] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0054] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0055] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A device for fixing the coil output, characterized in that, include: Base (10); A coil placement assembly (20) is fixed on the base (10) and has a clearance portion (21). A coil positioning assembly (30) is mounted on the base (10) and extends through the clearance part (21). The coil lead-out limiting assembly (40) includes a pressing structure (41), a connecting structure (42), and a limiting cover plate (43). The pressing structure (41) includes a pressing part. The pressing structure (41) is movably disposed on the base (10). The limiting cover plate (43) is fixedly connected to the pressing structure through the connecting structure (42). The limiting cover plate (43) drives the pressing part to press the root of the inner lead of the coil. The coil is located between the coil placement assembly (20) and the limiting cover plate (43). The pressing structure (41) includes a translation plate (411), a driving part (412), and a pressing arm (413). The pressing arm (413) and the driving part (412) are both located on the translation plate (411). The driving part (412) cooperates with the connecting structure (42). The first end of the pressing arm (413) is connected to the translation plate (411), and the second end of the pressing arm (413) extends out of the avoidance part (21). The pressing part is located at the second end of the pressing arm (413).

2. The device for fixing the coil output according to claim 1, characterized in that, The pressing part is a pressing groove (414).

3. The device for fixing the coil output according to claim 2, characterized in that, The width of the pressing groove (414) is greater than the thickness of a single wire but less than the thickness of two wires.

4. The device for fixing the coil output according to claim 1, characterized in that, The driving part (412) includes a driving block, and the driving block has a driving groove on the side opposite to the base (10). The connecting structure (42) includes a connecting rod, which is rotatably disposed in the driving groove. The cross section perpendicular to the axis of the connecting rod is a non-circular surface. The two ends of the connecting rod are respectively fixedly connected to the limiting cover plate (43).

5. The device for fixing the coil output according to claim 4, characterized in that, The cross-section of the connecting rod includes a straight line and an arc, and the two ends of the straight line are respectively connected to the two ends of the arc to form a closed plane.

6. The device for fixing the coil output according to claim 4, characterized in that, The base (10) has a bottom plate (11) and a vertical plate (12). The vertical plate (12) is fixedly disposed on the side of the bottom plate (11) away from the pressing part. The pressing structure (41) further includes a first elastic member, which elastically presses against the vertical plate (12) and the pressing structure (41).

7. The device for fixing the coil output according to any one of claims 1 to 6, characterized in that, The device for fixing the coil outlet also includes an outlet fixing component (50), which includes a pivot frame (51) and a wire clamp structure (52). The wire clamp structure (52) is mounted on the pivot frame (51), and the pivot frame (51) is rotatably mounted on the coil placement component (20). The pivot frame (51) has a wire clamping position and a storage position.

8. The device for fixing the coil output according to claim 7, characterized in that, The pivot frame (51) includes two side rods and a connecting block. The first ends of the two side rods are rotatably connected to the two sides of the coil placement assembly (20). The two ends of the connecting block are connected to the second ends of the two side rods. The connecting block has a receiving groove (511). The wire clamp structure (52) is disposed in the receiving groove (511). The pivot frame (51) is in the wire clamping position and the opening of the receiving groove (511) is opposite to the base (10).

9. The device for fixing the coil output according to claim 8, characterized in that, A pressure plate (53) is provided in the middle of the receiving groove (511). The wire clamp structure (52) includes two pressure blocks (521) and two second elastic members (522). Each second elastic member (522) elastically presses against the pressure block (521) and the end arm of the receiving groove (511). The two pressure blocks (521) press against the two sides of the pressure plate (53) respectively.

10. The device for fixing the coil output according to claim 7, characterized in that, There are multiple clearance parts (21), multiple coil positioning components (30), multiple pressing structures (41) and multiple wire clamp structures. The multiple clearance parts (21) are arranged one-to-one with the multiple coil positioning components (30), the multiple clearance parts (21) are arranged one-to-one with the multiple pressing structures (41), and the multiple clearance parts (21) are arranged one-to-one with the multiple wire clamp structures.

11. A coil processing fixture, characterized in that, The coil processing fixture includes a fixture body and a device for fixing the coil lead-out, wherein the device for fixing the coil lead-out is the device for fixing the coil lead-out as described in any one of claims 1 to 10.

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