Multilayer winding structure for common mode inductor

Abstract

The utility model discloses a multilayer winding structure for a common mode inductor, which relates to the technical field of winding equipment and comprises a workbench, one side of the workbench is rotatably connected with a first rotating rod for mounting a magnetic core, and the bottom of one side of the workbench is rotatably connected with a rotating pipe for connecting a pay-off roller; the surfaces of the first rotating rod and the rotating pipe are connected with synchronous wheels correspondingly, and the surfaces of the synchronous wheels are connected with synchronous belts. According to the utility model, through the arrangement of the synchronous belt, the synchronous wheel and the like, the first rotating rod can drive the pay-off roller on the rotating pipe to rotate when driving the magnetic core to rotate, so that the pulling force of an enameled wire on the pay-off roller is reduced, and the enameled wire is prevented from being pulled and broken when the pay-off roller is heavier; the extrusion block extrudes the extrusion ball, the connecting rod can drive the limiting plate to move to the inner wall of the pay-off roller to limit the pay-off roller, fixing through a plurality of bolts is not needed, follow-up mounting and dismounting are facilitated, and operation is easy.

Description

Technical Field

[0001] The utility model relates to the technical field of winding equipment, in particular to a multi-layer winding structure for a common mode inductor. Background Technique

[0002] The common mode inductor, also known as the common mode choke coil, is often used in the switching power supply of a computer to filter common mode electromagnetic interference signals. In the design of a circuit board, the common mode inductor also plays the role of EMI filtering, which is used to suppress the electromagnetic wave radiated outward generated by high-speed signal lines. The multi-layer winding means that the coils in the inductor are designed in a multi-layer stacked form, and the coil stacking often adopts a spiral winding method, that is, the wire winding of each layer is stacked layer by layer along the same direction (such as clockwise or counterclockwise). This winding method helps to maintain the uniformity and consistency of the wire winding. Currently, the multi-layer winding structure for a common mode inductor usually rotates the magnetic core through a rotating device to wind the enameled wire on the reel onto the surface of the magnetic core. When the enameled wire is wound, it needs to drive the reel to rotate. If the reel is heavy, it is easy to cause the enameled wire to be pulled and damaged or broken, etc., affecting its normal use. At the same time, currently, the reel is generally fixed on a rotatable connecting rod through multiple bolts, and the installation operation of multiple bolts is relatively troublesome. Content of the Utility Model

[0003] The utility model provides a multi-layer winding structure for a common mode inductor, which solves the problems in the background technique.

[0004] In order to achieve the above purpose, the utility model adopts the following technical scheme:

[0005] A multi-layer winding structure for a common mode inductor includes a workbench. One side of the workbench is rotatably connected with a first rotating rod for installing a magnetic core, and one side bottom of the workbench is rotatably connected with a rotating tube for connecting a reel.

[0006] Synchronous wheels are respectively connected to the surfaces of the first rotating rod and the rotating tube, and a synchronous belt is connected to the surface of the synchronous wheel.

[0007] The surface of the rotating tube is annularly and equidistantly provided with limiting plates for fixing the reel. One end of the rotating tube is threadedly connected with a screw rod, one end of the screw rod is connected with a pressing block, the inner wall of the rotating tube is connected with a fixing plate, and the inner wall of the fixing plate is slidably connected with a connecting plate. A spring is arranged between the connecting plate and the fixing plate, and a connecting rod connected to the limiting plate is fixedly connected to the surface of the connecting plate. The other end of the connecting rod is connected with a pressing ball.

[0008] As a further description of the above technical solution:

[0009] The pressing block is conical, and the surface of the pressing block is in contact with the surface of the pressing ball.

[0010] As a further description of the above technical solution:

[0011] An installation seat is provided at the top of the workbench, and a reciprocating lead screw is installed on the surface of the installation seat. A moving block is provided on the surface of the lead screw, and a cross bar is connected to one side of the moving block. One end of the cross bar is connected to a connecting ring for moving the enameled wire. One side of the workbench is rotatably connected to a second rotating rod connected to the lead screw.

[0012] As a further description of the above technical solution:

[0013] Gears are connected to the surfaces of the first rotating rod and the second rotating rod.

[0014] As a further description of the above technical solution:

[0015] A through groove is provided at the top of the workbench, and a sliding groove is provided on one side of the inner wall of the through groove. A slider connected to the moving block is slidably connected inside the sliding groove.

[0016] As a further description of the above technical solution:

[0017] A motor for driving the first rotating rod is installed on one side of the workbench.

[0018] In summary, due to the adoption of the above technical solution, the beneficial effects of the present utility model are as follows:

[0019] In the present utility model, by setting the synchronous belt and synchronous pulley, etc., when the first rotating rod drives the magnetic core to rotate, it can also drive the wire releasing roller on the rotating tube to rotate, so as to reduce the pulling force of the enameled wire on the wire releasing roller and avoid the enameled wire from being pulled and broken when the wire releasing roller is heavy. At the same time, by rotating the screw rod, the extrusion block can be used to extrude the extrusion ball, so that the connecting rod can drive the limiting plate to move to the inner wall of the wire releasing roller to limit it, without the need to fix it with multiple bolts, which is convenient for subsequent installation and disassembly, and the operation is relatively simple;

[0020] In the utility model, when the first rotating rod rotates, it can also drive the second rotating rod and the lead screw to rotate through two gears, so that the moving block on the lead screw drives the cross bar and the connecting ring to move, so that the connecting ring can drive the enameled wire to move, so as to wind the enameled wire around the surface of the magnetic core in a spiral winding method, and it is also convenient for multi-layer winding. Description of the Drawings

[0021] Figure 1 It is a schematic structural diagram of a multi-layer winding structure for a common mode inductor;

[0022] Figure 2 It is a schematic structural diagram of the bottom part of the workbench in the present utility model;

[0023] Figure 3 This is a schematic diagram of the internal part of the rotating tube in the present utility model.

[0024] Legend:

[0025] Workbench; 2. First rotating rod; 3. Magnetic core; 4. Rotating tube; 5. Synchronous pulley; 6. Synchronous belt; 7. Limiting plate; 8. Screw; 9. Extrusion block; 10. Fixed plate; 11. Connecting plate; 12. Spring; 13. Connecting rod; 14. Extrusion ball; 15. Mounting seat; 16. Lead screw; 17. Moving block; 18. Cross bar; 19. Connecting ring; 20. Second rotating rod; 21. Gear; 22. Through groove; 23. Slide groove; 24. Motor. Specific embodiments

[0026] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0027] Referring to Figures 1 - 3 , a multi-layer winding structure for a common mode inductor, including a workbench 1, a first rotating rod 2 for installing a magnetic core 3 is rotatably connected to one side of the workbench 1, and a rotating tube 4 for connecting a wire paying-off roller is rotatably connected to the bottom of one side of the workbench 1; synchronous pulleys 5 are respectively connected to the surfaces of the first rotating rod 2 and the rotating tube 4, and a synchronous belt 6 is connected to the surface of the synchronous pulley 5; limiting plates 7 for fixing the wire paying-off roller are annularly and equidistantly arranged on the surface of the rotating tube 4, and a screw 8 is threadedly connected to one end of the rotating tube 4, an extrusion block 9 is connected to one end of the screw 8, a fixed plate 10 is connected to the inner wall of the rotating tube 4, and a connecting plate 11 is slidably connected to the inner wall of the fixed plate 10. A spring 12 is arranged between the connecting plate 11 and the fixed plate 10, and a connecting rod 13 connected to the limiting plate 7 is fixedly connected to the surface of the connecting plate 11. The other end of the connecting rod 13 is connected to an extrusion ball 14. The wire paying-off roller can be placed on the limiting plate 7 on the surface of the rotating tube 4. By rotating the screw 8, the extrusion block 9 can be driven to move, so that the extrusion block 9 can be moved to the surface of the extrusion ball 14 and extrude it. Thus, the extrusion ball 14 can drive the connecting rod 13 to move, and then the limiting plate 7 on the connecting rod 13 can be moved to the inner wall of the wire paying-off roller to limit it. When the motor 24 drives the first rotating rod 2 to rotate, the rotating tube 4 and the wire paying-off roller can be driven to rotate through the synchronous pulley 5 and the synchronous belt 6, avoiding damage to the enameled wire caused by pulling during the winding of the enameled wire by the magnetic core 3 and affecting the subsequent use of the enameled wire.

[0028] Furthermore, the extrusion block 9 is conical and contacts the surface of the extrusion ball 14, which facilitates the movement of the extrusion ball 14 when the conical extrusion block 9 extrudes the spherical extrusion ball 14.

[0029] Furthermore, a mounting seat 15 is provided at the top of the workbench 1, and a reciprocating lead screw 16 is mounted on the surface of the mounting seat 15. A moving block 17 is provided on the surface of the lead screw 16, and a cross bar 18 is connected to one side of the moving block 17. A connecting ring 19 for moving the enameled wire is connected to one end of the cross bar 18. A second rotating rod 20 connected to the lead screw 16 is rotatably connected to one side of the workbench 1. This facilitates the movement of the moving block 17 on the surface of the lead screw 16 to drive the cross bar 18 and the connecting ring 19 when the lead screw 16 rotates, so as to drive the enameled wire to move through the connecting ring 19. The enameled wire can be wound around the surface of the magnetic core 3 in a spiral winding method and can also be wound in multiple layers. Rubber can be provided on the inner wall of the connecting ring 19 to avoid abrasion of the enameled wire.

[0030] Furthermore, gears 21 are connected to the surfaces of the first rotating rod 2 and the second rotating rod 20, which facilitates the rotation of the gear 21 on the surface of the second rotating rod 20 driven by the gear 21 connected to the surface of the first rotating rod 2 when the first rotating rod 2 rotates.

[0031] Furthermore, a through groove 22 is opened at the top of the workbench 1, and a sliding groove 23 is opened on one side of the inner wall of the through groove 22. A sliding block connected to the moving block 17 is slidably connected inside the sliding groove 23, which facilitates the limited movement of the moving block 17 on the surface of the lead screw 16 through the sliding block and the sliding groove 23 when the lead screw 16 rotates.

[0032] Furthermore, a motor 24 for driving the first rotating rod 2 is installed on one side of the workbench 1, which facilitates the driving of the first rotating rod 2 by the motor 24. The first rotating rod 2 can drive the rotating tube 4 to rotate through the synchronous pulley 5 and the synchronous belt 6, and can also drive the second rotating rod 20 to rotate through the two gears 21.

[0033] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and the inventive concept of the present invention, making equivalent replacements or changes, should be covered by the protection scope of the present invention.

Claims

1. A multi-layer winding structure for a common mode inductor, comprising a workbench (1), characterized in that: One side of the workbench (1) is rotatably connected with a first rotating rod (2) for installing a magnetic core (3), and the bottom of one side of the workbench (1) is rotatably connected with a rotating tube (4) for connecting a wire pay-off reel; Synchronous wheels (5) are respectively connected to the surfaces of the first rotating rod (2) and the rotating tube (4), and a synchronous belt (6) is connected to the surface of the synchronous wheel (5); Limiting plates (7) for fixing the wire pay-off reel are annularly and equidistantly arranged on the surface of the rotating tube (4), and one end of the rotating tube (4) is threadedly connected with a screw rod (8). One end of the screw rod (8) is connected with a pressing block (9). A fixing plate (10) is connected to the inner wall of the rotating tube (4), and a connecting plate (11) is slidably connected to the inner wall of the fixing plate (10). A spring (12) is arranged between the connecting plate (11) and the fixing plate (10), and a connecting rod (13) connected to the limiting plate (7) is fixedly connected to the surface of the connecting plate (11). The other end of the connecting rod (13) is connected with a pressing ball (14).

2. The multi-layer winding structure for a common-mode inductor according to claim 1, wherein: The pressing block (9) is conical, and the surface of the pressing block (9) is in contact with the surface of the pressing ball (14).

3. A multi-layer winding structure for a common-mode inductor according to claim 1, characterized in that: An installation seat (15) is arranged at the top of the workbench (1), and a reciprocating lead screw (16) is installed on the surface of the installation seat (15). A moving block (17) is arranged on the surface of the lead screw (16), and a cross bar (18) is connected to one side of the moving block (17). A connecting ring (19) for moving the enameled wire is connected to one end of the cross bar (18). One side of the workbench (1) is rotatably connected with a second rotating rod (20) connected to the lead screw (16).

4. A multi-layer winding structure for a common-mode inductor according to any one of claims 1-3, characterized in that: Gears (21) are connected to the surfaces of the first rotating rod (2) and the second rotating rod (20).

5. A multi-layer winding structure for a common mode inductor according to claim 1, characterized in that: A through groove (22) is opened at the top of the workbench (1), and a sliding groove (23) is opened on one side of the inner wall of the through groove (22). A sliding block connected to the moving block (17) is slidably connected inside the sliding groove (23).

6. A multi-layer winding structure for a common mode inductor according to claim 1, characterized in that: A motor (24) for driving the first rotating rod (2) is installed on one side of the workbench (1).

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