A packaging device for a filter common-mode inductor
By designing the linkage between the operation panel, clamping block, and glue spraying mechanism, the problems of positional displacement and frame damage during the packaging process of common mode filter inductors were solved, achieving stable clamping and rapid bonding, and improving packaging efficiency and reliability.
Patent Information
- Application Number
- CN202522099411.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-29
- Publication Date
- 2026-08-25
- Estimated Expiration
- 2035-09-29
AI Technical Summary
Existing common-mode filter inductors are prone to problems such as positional misalignment, insecure clamping, and damage to the frame due to excessive force during the packaging process, which affects packaging quality and consistency.
A packaging device including an operation panel, clamping blocks, a limiting mechanism, and a glue spraying mechanism was designed. The device utilizes a servo motor to drive the linkage between the threaded sleeve block and the rotating block to achieve multi-point elastic clamping and automatic positioning, and the glue spraying mechanism enables rapid bonding to ensure packaging stability.
It achieves stable clamping and rapid bonding of the packaging skeleton, improving packaging efficiency and reliability, avoiding skeleton damage, and ensuring consistent packaging quality.
Smart Images

Figure CN224682931U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of packaging devices for common-mode filter inductors, specifically a packaging device for a common-mode filter inductor. Background Technology
[0002] Common-mode filtering inductors are a common passive device used in electromagnetic compatibility (EMC) circuits. They typically consist of a ferrite core and two sets of coils symmetrically wound on the core. Their working principle is to utilize the two sets of windings to generate a large impedance to common-mode signals, thereby suppressing electromagnetic interference noise.
[0003] In the packaging process of existing common-mode filter inductors, the wound inductor windings are usually inserted into the frame and then fixed and insulated by the shell or colloid. During this process, the frame often needs to be aligned and kept stable. However, problems such as positional deviation, unreliable clamping, and excessive force can easily occur during operation, resulting in damage to the frame, which affects the packaging quality and consistency.
[0004] Therefore, it is necessary to design a package device for a common-mode filter inductor to solve the above problems. Utility Model Content
[0005] The purpose of this invention is to provide a packaging device for a common-mode filter inductor to solve the technical problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a packaging device for a common-mode filter inductor, comprising an operating plate, a groove on the top of the operating plate, a square opening on the outer surface of the groove, a fixing block fixedly connected inside the square opening, two symmetrical sliding push blocks slidably disposed on the top of the groove, each sliding push block having a sliding opening at both ends, a clamping block slidably inserted inside each of the two sliding openings, a threaded sleeve fixedly connected to one end of each clamping block, a first spring sleeved on the outer surface of each threaded sleeve, and limit openings on both sides of the operating plate, with one end of each threaded sleeve slidably inserted into the sliding opening and the limit opening. Inside, one end of the threaded sleeve block is fixedly connected to a limiting piece, one side of each of the two sliding push blocks is fixedly connected to a square sleeve block, one side of the inner cavity of each of the two square sleeve blocks is fixedly connected to multiple second springs, one end of each of the multiple operating plates on the same side is fixedly connected to an insert block, the top of the insert block has a U-shaped block, the inside of the U-shaped block is rotatably connected to a rotating block, the top of the fixed block is fixedly connected to a column tube, the top of the column tube is fixedly connected to a circular top plate, two symmetrical glue spraying mechanisms are mated on the circular top plate, the top of the circular top plate is provided with a driving mechanism, the driving mechanism is threadedly sleeved with a threaded sleeve block, and the other ends of the two rotating blocks are respectively rotatably connected to the two sides of the threaded sleeve block.
[0007] Preferably, there are four clamping blocks and four sliding openings. One end of each of the four clamping blocks is fixedly connected to a second limiting block. One side of each of the four second limiting blocks is in contact with one side of each of the two sliding push blocks. A connecting block is fixedly connected to the top of each of the four clamping blocks. A square opening is provided at the top of each of the four sliding openings. The four connecting blocks are slidably disposed inside the square openings. A first limiting block is fixedly connected to the top of each of the four connecting blocks. The four first limiting blocks are in contact with the top of each of the two sliding push blocks.
[0008] Preferably, the glue spraying mechanism includes a glue delivery pipe, which is fixedly inserted into the interior of the circular top plate, and a telescopic tube is fixedly connected to the bottom end of the glue delivery pipe. A glue spraying head is fixedly connected to the bottom end of the telescopic tube, and the two glue spraying heads are respectively located on both sides of the column tube.
[0009] Preferably, the driving mechanism includes a servo motor, which is fixed to the top of the circular top plate. The output shaft of the servo motor is fixed to a screw. The outer surface of the column tube has two sliding openings, and the center of the threaded sleeve block is slidably inserted into the two sliding openings. The center of the threaded sleeve block is threadedly sleeved on the outer surface of the screw.
[0010] Preferably, one end of each of the two inserts is slidably inserted into the interior of the two square sleeves, and the outer surface of the insert is in contact with the inner wall of the square sleeve, and a gap is provided between the U-shaped block and one side of the corresponding square sleeve.
[0011] Preferably, both ends of the threaded sleeve block are provided with notches, and one end of each of the two rotating blocks is rotatably connected to the inside of the two notches.
[0012] The technical solution provided by this utility model has the following advantages compared with the prior art:
[0013] This invention achieves multi-point elastic clamping and automatic positioning of the encapsulation skeleton by setting up an operation panel, clamping blocks, limiting mechanisms, and a glue spraying mechanism, ensuring the stability of skeletons of different sizes during assembly. The linkage between the threaded sleeve block and the rotating block driven by the servo motor provides a buffering effect during the clamping and pushing process, effectively preventing damage to the skeleton. At the same time, the glue spraying mechanism enables rapid bonding of the inductor and the skeleton, ensuring stable pin encapsulation, thereby improving encapsulation efficiency and reliability. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model;
[0015] Figure 2 This is an exploded view of the sliding pusher structure of this utility model;
[0016] Figure 3This is an enlarged schematic diagram of the structure at point A in the figure;
[0017] In the diagram: 1. Control panel; 2. Sliding push block; 3. First limit block; 4. Second limit block; 5. Limiting piece; 6. Limiting opening; 7. Clamping block; 8. Inserting block; 9. Square sleeve block; 10. U-shaped block; 11. Rotating block; 12. Fixing block; 13. Column tube; 14. Servo motor; 15. Glue delivery tube; 16. Telescopic tube; 17. Glue spray head; 18. Threaded sleeve block; 19. First spring; 20. Connecting block; 21. Second spring; 22. Screw; 24. Circular top plate. Detailed Implementation
[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.
[0019] Obviously, many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.
[0020] Please see Figure 1-3This utility model provides a packaging device for a common-mode filter inductor, including an operation plate 1. The top of the operation plate 1 has a groove, and the outer surface of the groove has a square opening. A fixing block 12 is fixedly connected inside the square opening. Two symmetrical sliding push blocks 2 are slidably arranged on the top of the groove. Each end of the two sliding push blocks 2 has a sliding opening, and a clamping block 7 is slidably inserted into each of the two sliding openings. A threaded sleeve block 18 is fixedly connected to one end of each clamping block 7. A first spring 19 is sleeved on the outer surface of the threaded sleeve block 18. The operation plate 1... Limit openings 6 are provided on both sides. One end of the threaded sleeve 18 is slidably inserted into the sliding opening and the limit opening 6, and a limit piece 5 is fixedly connected to one end of the threaded sleeve 18. A square sleeve 9 is fixedly connected to one side of each of the two sliding push blocks 2. Multiple second springs 21 are fixedly connected to one side of the inner cavity of each of the two square sleeves 9. An insert block 8 is fixedly connected to one end of multiple operating plates 1 on the same side. A U-shaped block 10 is provided on the top of the insert block 8. A rotating block 11 is rotatably connected inside the U-shaped block 10. A column tube 13 is fixedly connected to the top of the fixed block 12. A circular top plate 24 is fixed to the top of the 3. Two symmetrical glue spraying mechanisms are connected to the circular top plate 24. A driving mechanism is provided on the top of the circular top plate 24. A threaded sleeve block 18 is threaded onto the driving mechanism. The other ends of the two rotating blocks 11 are respectively rotatably connected to the two sides of the threaded sleeve block 18. By moving the four second limit blocks 4, the distance between the two clamping blocks 7 on both sides is adjusted, so that the elastic sliding of the four clamping blocks 7 is used to clamp two packaging skeletons of the same size. By opening the servo motor 14, the threaded sleeve block 18 is driven to move on the column tube 13. The outer surface of the plate descends, thereby using the rotation of the two rotating blocks 11 to push the two sliding push blocks 2 towards the sides of the groove of the operating plate 1 through the insertion block 8 and the clamping block 7 respectively. This pushes the two encapsulation frames to fit against the sides of the groove. The elasticity of the multiple second springs 21 provides a buffer distance for the push, preventing excessive pressure from damaging the encapsulation frames. Once the two encapsulation frames are fully positioned, the glue spraying mechanism can be used to encapsulate and connect the filter common mode inductor to the encapsulation frame, making the pin encapsulation stable. The efficiency of the encapsulation is improved by using stable encapsulation positioning.
[0021] To improve the sliding stability of the four clamping blocks 7 at the four sliding openings, thereby clamping packaging skeletons of different sizes and facilitating subsequent packaging, there are four clamping blocks 7 and four sliding openings. One end of each of the four clamping blocks 7 is fixedly connected to a second limiting block 4. One side of each of the four second limiting blocks 4 is respectively attached to one side of each of the two sliding push blocks 2. The top of each of the four clamping blocks 7 is fixedly connected to a connecting block 20. The top of each of the four sliding openings is provided with a square opening. The four connecting blocks 20 are respectively slidably disposed inside the square opening. The top of each of the four connecting blocks 20 is fixedly connected to a first limiting block 3. The four first limiting blocks 3 are respectively attached to the top of each of the two sliding push blocks 2.
[0022] By extending and retracting two telescopic tubes 16 and connecting two glue delivery tubes 15 to the glue spraying tube, glue spraying is performed by two glue spraying heads 17 respectively. The glue spraying mechanism includes a glue delivery tube 15, which is fixedly inserted into the interior of the circular top plate 24. The bottom end of the glue delivery tube 15 is fixedly connected to a telescopic tube 16, and the bottom end of the telescopic tube 16 is fixedly connected to a glue spraying head 17. The two glue spraying heads 17 are located on both sides of the column tube 13 respectively.
[0023] Furthermore, to facilitate the adjustment and stability of the sliding adjustment of the threaded sleeve 18 on the column tube 13, the drive mechanism includes a servo motor 14, which is fixed to the top of the circular top plate 24. The output shaft of the servo motor 14 is fixed to a screw 22. Two sliding ports are opened on the outer surface of the column tube 13, and the center of the threaded sleeve 18 is slidably inserted into the interior of the two sliding ports. The center of the threaded sleeve 18 is threadedly sleeved on the outer surface of the screw 22.
[0024] Furthermore, in order to buffer the clamping force of the clamping and packaging skeleton, one end of each of the two inserts 8 is slidably inserted into the interior of the two square sleeves 9, and the outer surface of the insert 8 is in contact with the inner wall of the square sleeve 9, and a gap is provided between the U-shaped block 10 and one side of the corresponding square sleeve 9.
[0025] To facilitate the rotation of the two rotating blocks 11, which in turn pushes the two insert blocks 8 and the two square sleeve blocks 9 to drive the two sliding push blocks 2 to slide, both ends of the threaded sleeve block 18 are provided with notches, and one end of the two rotating blocks 11 is rotatably connected to the inside of the two notches.
[0026] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.
[0027] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable way without contradiction. In order to avoid unnecessary repetition, this utility model will not describe the various possible combinations separately.
[0028] Furthermore, various different embodiments of this utility model can be combined in any way, as long as they do not violate the spirit of this utility model, they should also be regarded as the content disclosed by this utility model.
Claims
1. A packaging device for a common-mode filter inductor, comprising an operation board (1), characterized in that: The top of the operating plate (1) has a groove, and the outer surface of the groove has a square opening. A fixing block (12) is fixedly connected inside the square opening. Two symmetrical sliding push blocks (2) are slidably arranged on the top of the groove. Both ends of the two sliding push blocks (2) have sliding openings. A clamping block (7) is slidably inserted into the interior of each of the two sliding openings. A threaded sleeve block (18) is fixedly connected to one end of the clamping block (7). A first spring (19) is sleeved on the outer surface of the threaded sleeve block (18). Limit openings (6) are opened on both sides of the operating plate (1). One end of the threaded sleeve block (18) is slidably inserted into the interior of the sliding opening and the limit opening (6). A limit piece (5) is fixedly connected to one end of the threaded sleeve block (18). The two sliding push blocks (2) Square sleeves (9) are fixed to one side of each of the two square sleeves (9). Multiple second springs (21) are fixed to one side of the inner cavity of each of the two square sleeves (9). Inserts (8) are fixed to one end of multiple operating plates (1) on the same side. A U-shaped block (10) is on the top of the insert (8). A rotating block (11) is rotatably connected inside the U-shaped block (10). A column tube (13) is fixed to the top of the fixed block (12). A circular top plate (24) is fixed to the top of the column tube (13). Two symmetrical glue spraying mechanisms are connected to the circular top plate (24). A driving mechanism is provided on the top of the circular top plate (24). A threaded sleeve (18) is threaded onto the driving mechanism. The other ends of the two rotating blocks (11) are rotatably connected to the two sides of the threaded sleeve (18).
2. The packaging device for a common-mode filter inductor according to claim 1, characterized in that: The number of clamping blocks (7) and sliding openings are four in total. One end of each of the four clamping blocks (7) is fixedly connected to a second limiting block (4). One side of each of the four second limiting blocks (4) is in contact with one side of each of the two sliding push blocks (2). A connecting block (20) is fixedly connected to the top of each of the four clamping blocks (7). A square opening is provided at the top of each of the four sliding openings. Each of the four connecting blocks (20) is slidably disposed inside the square opening. A first limiting block (3) is fixedly connected to the top of each of the four connecting blocks (20). The four first limiting blocks (3) are in contact with the top of each of the two sliding push blocks (2).
3. The packaging device for a common-mode filter inductor according to claim 1, characterized in that: The glue spraying mechanism includes a glue delivery pipe (15), which is fixedly inserted into the interior of the circular top plate (24). A telescopic pipe (16) is fixedly connected to the bottom end of the glue delivery pipe (15), and a glue spraying head (17) is fixedly connected to the bottom end of the telescopic pipe (16). The two glue spraying heads (17) are located on both sides of the column tube (13).
4. The packaging device for a common-mode filter inductor according to claim 1, characterized in that: The drive mechanism includes a servo motor (14), which is fixed to the top of the circular top plate (24). The output shaft of the servo motor (14) is fixed to a screw (22). The outer surface of the column tube (13) has two sliding openings, and the center of the threaded sleeve (18) is slidably inserted into the interior of the two sliding openings. The center of the threaded sleeve (18) is threaded onto the outer surface of the screw (22).
5. The packaging device for a common-mode filter inductor according to claim 1, characterized in that: One end of each of the two inserts (8) is slidably inserted into the interior of the two square sleeves (9), and the outer surface of the insert (8) is in contact with the inner wall of the square sleeve (9), and a gap is provided between the U-shaped block (10) and one side of the corresponding square sleeve (9).
6. The packaging device for a common-mode filter inductor according to claim 1, characterized in that: Both ends of the threaded sleeve (18) are provided with notches, and one end of each of the two rotating blocks (11) is rotatably connected to the inside of the two notches.