A differential mode inductor core fixing structure
By setting a fixing slot and a moving plate in the differential mode inductor core fixing structure, the problems of unstable core fixing and lack of versatility are solved, and the core is stably clamped and adaptively adjusted, thereby improving the stability and electrical performance of the winding.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XINGNING YUANCHENGLONG ELECTRONICS CO LTD
- Filing Date
- 2025-07-18
- Publication Date
- 2026-06-30
AI Technical Summary
In the winding process of existing differential mode inductors, the magnetic core is not firmly fixed and is prone to displacement and deviation. Furthermore, the fixing structure lacks versatility and flexibility, which affects the winding quality and electrical performance.
A differential mode inductor core fixing structure was designed. By setting a fixing groove on the rotating rod, and using the cooperation of the moving plate and the spring, the pressure plate and the sleeve are tightly fitted and the position is adjusted, clamping the upper and lower ends of the magnetic core, adapting to magnetic cores of different heights and preventing shaking.
It effectively fixes the magnetic core, reduces shaking, improves the stability and adaptability of the winding, and ensures the winding quality and electrical performance of inductors of different specifications.
Smart Images

Figure CN224437399U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of differential mode inductor manufacturing technology, and in particular to a differential mode inductor core fixing structure. Background Technology
[0002] In the manufacturing process of differential mode inductors, the winding process is one of the most critical steps. The quality of the winding directly affects the electrical performance and stability of the inductor. Furthermore, the fixation of the magnetic core during winding significantly impacts the smooth progress of the winding process and the quality of the final product. Existing methods for fixing differential mode inductors during winding often fail to provide sufficiently stable support. During the winding process, the operation of the winding equipment can cause the magnetic core to become unstable, resulting in displacement and shifting. Moreover, when winding differential mode inductors of different specifications or models, the fixing structure may lack sufficient versatility and flexibility, requiring frequent replacement or adjustment of the fixing device. Utility Model Content
[0003] The purpose of this invention is to address the shortcomings of existing technologies, such as the instability of the magnetic core during the operation of winding equipment, resulting in displacement and shifting, and the lack of sufficient versatility and flexibility in the fixing structure. This invention provides a differential mode inductor magnetic core fixing structure.
[0004] To achieve the above objectives, the present invention adopts the following technical solution: a differential mode inductor core fixing structure, comprising a worktable, a support platform fixedly connected to the outer surface of the worktable, a rotating rod provided on one side of the support platform, a support rod rotatably connected to the outer surface of the rotating rod, a limiting seat fixedly connected to the outer surface of the rotating rod, a slot provided on the outer surface of the limiting seat, a locking block engaged with the inner wall of the slot, a rotating hoop fixedly connected to the outer surface of the locking block, a pressure plate attached to the top of the rotating hoop, a sleeve fixedly connected to the outer surface of the pressure plate, a sliding opening provided at the top of the sleeve, a sliding block slidably connected to the top of the sleeve, an insert rod attached to one side of the sliding block, a bonding plate fixedly connected to the bottom of the sliding block, a connecting plate provided on one side of the bonding plate, a first moving plate slidably connected to the outer surface of the bonding plate through a through hole, a spring fixedly connected to the outer surface of the first moving plate, and a second moving plate slidably connected to the outer surface of the connecting plate through a through hole.
[0005] In a preferred embodiment, a limiting plate is fixedly connected to one side of the sliding port, a moving groove is provided on one side of the sliding block, a sliding opening is provided on the outer surface of the connecting plate, and a slider is slidably connected to the inner wall of the sliding opening.
[0006] In a preferred embodiment, the inner wall of the movable groove is slidably connected to the outer surface of the limiting plate, and one side of the slider is fixedly connected to the outer surface of the insertion rod.
[0007] In a preferred embodiment, the sleeve is fitted onto the outer surface of the rotating rod, and a fixing groove is provided at the top of the rotating rod.
[0008] In a preferred embodiment, the top of the connecting plate is fixedly connected to the bottom of the sliding block.
[0009] In a preferred embodiment, both the bonding plate and the connecting plate are disposed inside the fixing groove.
[0010] In a preferred embodiment, the two ends of the spring are fixedly connected to the outer surfaces of the first movable plate and the second movable plate, respectively.
[0011] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0012] This invention features a fixed groove at the top of the rotating rod, which facilitates the tight fit of the first moving plate and restricts the position of the pressure plate and sleeve. The pressure plate and the limiting seat are used to clamp the upper and lower ends of the magnetic core. When the rotating hoop rotates, it can reduce the shaking of the magnetic core when winding the coil. The pressure plate can be adjusted up and down to accommodate magnetic cores of different heights. By setting a sleeve connected to the pressure plate, the height of the sleeve can be controlled to adjust the pressure plate. After the height of the sleeve is adjusted, its position needs to be limited to prevent it from moving during operation. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of a differential mode inductor core fixing structure provided by this utility model.
[0014] Figure 2 This utility model provides a differential mode inductor core fixing structure. Figure 1 Enlarged schematic diagram of the structure at point A in the middle.
[0015] Figure 3 This is a cross-sectional view of the pressure plate and sleeve portion of a differential mode inductor core fixing structure provided by this utility model.
[0016] Figure 4 A schematic diagram of the bottom structure of the sliding block of a differential mode inductor core fixing structure provided by this utility model.
[0017] Legend:
[0018] 1. Workbench; 2. Support platform; 3. Rotating rod; 4. Support rod; 5. Limiting seat; 6. Rotating hoop; 7. Pressure plate; 8. Sleeve; 9. Sliding port; 10. Limiting plate; 11. Sliding block; 12. Insert rod; 13. Adhesive plate; 14. Connecting plate; 15. First moving plate; 16. Spring; 17. Second moving plate; 18. Sliding port; 19. Slider. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0020] Example 1
[0021] like Figures 1-4 As shown, this utility model provides a technical solution: a differential mode inductor core fixing structure, including a workbench 1, a support platform 2 fixedly connected to the outer surface of the workbench 1, a rotating rod 3 provided on one side of the support platform 2, a support rod 4 rotatably connected to the outer surface of the rotating rod 3, a limiting seat 5 fixedly connected to the outer surface of the rotating rod 3, a slot provided on the outer surface of the limiting seat 5, a locking block engaged with the inner wall of the slot, a rotating hoop 6 fixedly connected to the outer surface of the locking block, a pressure plate 7 abutting the top of the rotating hoop 6, a sleeve 8 fixedly connected to the outer surface of the pressure plate 7, the sleeve 8 sleeved on the outer surface of the rotating rod 3, a fixing groove opened at the top of the rotating rod 3, a sliding opening 9 opened at the top of the sleeve 8, and a sliding block 11 slidably connected to the top of the sleeve 8. A plug rod 12 is attached to one side, and a bonding plate 13 is fixedly connected to the bottom of the sliding block 11. A connecting plate 14 is provided on one side of the bonding plate 13. Both the bonding plate 13 and the connecting plate 14 are located inside the fixing groove. The top of the connecting plate 14 is fixedly connected to the bottom of the sliding block 11. A first moving plate 15 is slidably connected to the outer surface of the bonding plate 13 through a through hole. A spring 16 is fixedly connected to the outer surface of the first moving plate 15. The two ends of the spring 16 are fixedly connected to the outer surfaces of the first moving plate 15 and the second moving plate 17, respectively. The second moving plate 17 is slidably connected to the outer surface of the connecting plate 14 through a through hole. The worktable 1, support table 2, rotating rod 3, and support rod 4 are existing technologies and can be adjusted left and right or rotated. They will not be described in detail.
[0022] In this embodiment, a fixing groove is provided at the top of the rotating rod 3 to facilitate the tight fit of the first moving plate 15, thereby limiting the position of the pressure plate 7 and the sleeve 8. The pressure plate 7 and the limiting seat 5 are used to clamp the upper and lower ends of the magnetic core. When the rotating hoop 6 rotates, it can reduce the shaking of the magnetic core when winding the coil. The pressure plate 7 can be adjusted up and down to accommodate magnetic cores of different heights. By setting the sleeve 8 to connect to the pressure plate 7, the height of the sleeve 8 can be controlled to adjust the pressure plate 7. After the height of the sleeve 8 is adjusted, its position needs to be limited to prevent movement during operation. Specifically, the first moving plate 15 is inserted into the fixing groove through the through hole on the surface of the fitting plate 13. One side of the first moving plate 15 is squeezed by the spring 16. Pressed against the inner wall of the fixed groove, a second moving plate 17 is provided to allow the first moving plate 15 to move away from the fixed groove. It moves in the through hole on the surface of the connecting plate 14. When the pressure on the second moving plate 17 is released, the presence of the spring 16 allows the second moving plate 17 to be pushed backward by the spring 16, and the pressure on the first moving plate 15 will decrease, which can pull the sleeve 8 and the pressure plate 7. In addition, the elastic force of the spring 16 will not cause the second moving plate 17 to disengage from the through hole of the connecting plate 14. The rear side of the second moving plate 17 is pressed by the insert rod 12, which applies pressure to one side of the second moving plate 17. Then, the spring 16 holds the first moving plate 15 in place in the fixed groove, and the insert rod 12 is inserted between the two connecting plates 14 from the middle of the two sliding blocks 11.
[0023] Example 2
[0024] like Figure 3 and Figure 4 As shown, a limiting plate 10 is fixedly connected to one side of the sliding port 9, a moving groove is provided on one side of the sliding block 11, a sliding port 18 is provided on the outer surface of the connecting plate 14, a slider 19 is slidably connected to the inner wall of the sliding port 18, the inner wall of the moving groove is slidably connected to the outer surface of the limiting plate 10, and one side of the slider 19 is fixedly connected to the outer surface of the insertion rod 12.
[0025] In this embodiment, by setting a moving groove and a limiting plate 10, the sliding block 11 is prevented from moving up and down. By setting a slider 19 and a sliding opening 18, the insertion rod 12 is always located between the connecting plates 14 on both sides. The height of the sliding opening 18 allows the insertion rod 12 to move up and down away from the second moving plate 17 and to press the second moving plate 17. In addition, the bottom end of the insertion rod 12 is provided with sliding surfaces on both sides to prevent the second moving plate 17 from being unable to be pressed towards the side of the spring 16.
[0026] Working principle:
[0027] like Figures 1-4As shown, in actual operation, the magnetic core is first placed between the limiting seats 5 on both sides to ensure that its position is centered and stable. Then, the height of the sleeve 8 is adjusted to make the pressure plate 7 fit tightly with the upper end of the magnetic core, while the limiting seat 5 fixes the lower end of the magnetic core, thereby achieving effective clamping of the magnetic core. During this process, after the height of the sleeve 8 is adjusted to a suitable position, the insertion rod 12 moves downward and the slider 19 moves in the sliding mouth 18, continuously moving downward and applying pressure to the second moving plate 17. Due to the elastic force of the spring 16, the first moving plate 15 is tightly pressed against the inner wall of the fixing groove, thereby completing the position locking of the sleeve 8 and the pressure plate 7. In addition, when adjustment or disassembly is required, simply pull the insertion rod 12 upward to move it away from the area of the second moving plate 17. The rebound force of the spring 16 will automatically push the first moving plate 15 to loosen the fixing groove, thereby allowing the sleeve 8 and the pressure plate 7 to move freely.
[0028] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. A differential mode inductance magnetic core fixing structure comprising a worktable (1), characterized in that: A support platform (2) is fixedly connected to the outer surface of the workbench (1). A rotating rod (3) is provided on one side of the support platform (2). A support rod (4) is rotatably connected to the outer surface of the rotating rod (3). A limiting seat (5) is fixedly connected to the outer surface of the rotating rod (3). A slot is provided on the outer surface of the limiting seat (5). A locking block is engaged with the inner wall of the slot. A rotating hoop (6) is fixedly connected to the outer surface of the locking block. A pressure plate (7) is attached to the top of the rotating hoop (6). A sleeve (8) is fixedly connected to the outer surface of the pressure plate (7). The top of the sleeve (8) The sleeve (8) has a sliding opening (9), and a sliding block (11) is slidably connected to the top of the sleeve (8). A plug rod (12) is attached to one side of the sliding block (11). A bonding plate (13) is fixedly connected to the bottom of the sliding block (11). A connecting plate (14) is provided on one side of the bonding plate (13). A first moving plate (15) is slidably connected to the outer surface of the bonding plate (13) through a through hole. A spring (16) is fixedly connected to the outer surface of the first moving plate (15). A second moving plate (17) is slidably connected to the outer surface of the connecting plate (14) through a through hole.
2. The differential mode inductor core fixation structure of claim 1, wherein: A limiting plate (10) is fixedly connected to one side of the sliding port (9), a moving groove is provided on one side of the sliding block (11), a sliding opening (18) is provided on the outer surface of the connecting plate (14), and a slider (19) is slidably connected to the inner wall of the sliding opening (18).
3. The differential mode inductor core fixation structure of claim 2, wherein: The inner wall of the moving groove is slidably connected to the outer surface of the limiting plate (10), and one side of the slider (19) is fixedly connected to the outer surface of the plug rod (12).
4. The differential mode inductor core fixation structure of claim 1, wherein: The sleeve (8) is fitted onto the outer surface of the rotating rod (3), and a fixing groove is provided on the top of the rotating rod (3).
5. The differential mode inductor core fixation structure of claim 1, wherein: The top of the connecting plate (14) is fixedly connected to the bottom of the sliding block (11).
6. The differential mode inductor core fixing structure according to claim 1, characterized in that: Both the bonding plate (13) and the connecting plate (14) are disposed inside the fixing groove.
7. The differential mode inductor core fixing structure according to claim 1, characterized in that: The two ends of the spring (16) are fixedly connected to the outer surfaces of the first moving plate (15) and the second moving plate (17), respectively.