Plugboard structure for elastic dispensing-free fixation of inductor
By adding elastic elements to both sides of the inductor plug-in structure for self-locking, the complexity and reliability issues of traditional inductor plug-in adhesive fixing are solved, achieving the effects of simplified process, improved reliability and environmental protection.
Patent Information
- Application Number
- CN202520456675.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-17
- Publication Date
- 2026-03-06
- Estimated Expiration
- 2035-03-17
AI Technical Summary
Traditional inductor plugs are fixed by dispensing adhesive, which has problems such as complex process, insufficient reliability and difficult maintenance. In addition, the adhesive is prone to aging and cracking, which can lead to loosening.
An improved insert structure is adopted, with elastic elements added to both sides. The elastic elements are used to lock the inductor slots for self-locking, achieving glue-free fixation.
It simplifies the process, improves reliability, shortens the production cycle, and enhances environmental friendliness.
Smart Images

Figure CN223977788U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of inductor technology, specifically to a plug-in structure for elastic fixation of inductors without adhesive application. Background Technology
[0002] Traditional inductor inserts are fixed using adhesive dispensing, but this method suffers from problems such as complex processes, insufficient reliability, and difficult maintenance. The dispensing process increases the production cycle, and the adhesive is prone to aging and cracking, leading to loosening of the insert. To address these issues, engineers have made improvements, such as the flat wire vertically wound inductor coil disclosed in Chinese patent announcement CN218730337U, which features a locking component on the outside of the separator plate. However, this solution has a complex locking mechanism, requiring a return spring, insert rod, and slide rod to work together, resulting in cumbersome manufacturing processes, poor reliability, and high costs. Therefore, a simpler, more reliable, and economical fixing solution is still needed. Utility Model Content
[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a plug structure for inductive elastic fixation without glue application.
[0004] The technical solution adopted in this utility model is as follows:
[0005] A plug-in structure for elastic adhesive-free fixing of inductors includes a plug-in body and elastic members arranged along both sides of the plug-in body. The ends of the elastic members have outward protrusions with steps, and the elastic members drive the steps to elastically expand outward and form a bidirectional self-locking with the inductor.
[0006] This technical solution improves the shape of the plug-in board structure by adding elastic elements on both sides. The elastic elements are used to lock the plug-in board to the inductor slot, thus eliminating the need for glue application in the connection process. This simplifies the process, improves reliability, shortens the production cycle, and enhances environmental friendliness.
[0007] In addition, the insert structure for adhesive-free fixing of inductive elasticity proposed in this utility model may also have the following additional technical features:
[0008] According to one embodiment of the present invention, the insert plate body and the elastic element are integrally injection molded structures.
[0009] This technical solution, through injection molding, ensures a tight and consistent connection between the insert plate body and the elastic component, thereby improving the overall strength of the insert plate structure.
[0010] According to one embodiment of the present invention, there is a gap between the insert plate body and the elastic element, and the elastic element is subjected to force, compression, contraction and deformation within the gap space.
[0011] In this technical solution, the gap is such that the elastic element deforms under stress without affecting the structural integrity of the insert plate body.
[0012] According to one embodiment of the present invention, the shape of the insert body is rectangular or irregular.
[0013] In this technical solution, the plug-in board body can adapt to inductor slots of different shapes and sizes, enhancing the versatility and flexibility of the plug-in board body.
[0014] According to one embodiment of the present invention, the insert plate body is inserted along the axial direction of the inductor slot, and the elastic element is squeezed inward by the inner wall of the inductor slot.
[0015] In this technical solution, during the insertion of the insert plate body, the elastic element is in a state of compression deformation, that is, at this time the distance between the anti-slip grooves is less than the distance between the elastic elements on both sides.
[0016] According to one embodiment of the present invention, after the insert body is fully inserted into the inductor slot, the elastic element recovers its deformation and springs outward, forming an interference fit with the inner wall of the inductor slot.
[0017] In this technical solution, after the insert plate body is inserted, the elastic element is in a state of recovery deformation, that is, at this time the spacing of the anti-slip groove is equal to or less than the spacing of the elastic elements on both sides.
[0018] According to one embodiment of the present invention, the elastic element is a slender elastic piece symmetrically distributed on both sides of the insert plate body.
[0019] In this technical solution, the material of the elastic element enables it to form a slender elastic piece and maintain a certain elasticity with the plug body.
[0020] According to one embodiment of the present invention, the elastic element enters the anti-slip groove on the surface of the protective shell, and the step abuts against the bottom of the anti-slip groove, thereby engaging the elastic element with the protective shell.
[0021] In this technical solution, the insertion end of the step has an inclined guide surface that facilitates entry into the anti-slip groove, and the end of the step has a limiting surface that prevents it from coming out. The limiting surface engages with the inductor's protective casing to prevent over-insertion.
[0022] According to one embodiment of the present invention, the cross-sectional shape of the step is an inverted triangle, a wedge, a tooth, or an irregular shape.
[0023] In this technical solution, the diversity of the cross-sectional shape of the steps allows the elastic element to adapt to anti-slip grooves of different shapes and depths, thus enhancing the versatility of the structure.
[0024] According to one embodiment of the present invention, the anti-slip groove is a groove arranged axially along the inductor groove, and the depth of the anti-slip groove meets the requirement of the end step engagement of the elastic element; the distance between the two grooves symmetrically arranged along the center of the protective shell meets the deformation requirements of the elastic elements on both sides.
[0025] In this technical solution, the anti-slip groove is the contact part between the insert plate body and the outer surface of the protective shell. The anti-slip groove is used to prevent the insert plate body from wobbling left and right after insertion.
[0026] Compared with the prior art, this utility model has the following advantages:
[0027] By improving the shape of the plug-in board structure and adding elastic elements on both sides, the plug-in board can be self-locked in the inductor slot by engaging with the elastic elements. This eliminates the need for glue application when connecting the plug-in board to the inductor, simplifying the process, improving reliability, shortening the production cycle, and enhancing environmental friendliness. It is suitable for plugging and fixing products such as high-frequency inductors and power inductors. Attached Figure Description
[0028] Figure 1 This is an assembly drawing of this utility model.
[0029] Figure 2 This is a perspective view of the present invention.
[0030] Figure 3 This is a top view of the present invention.
[0031] Figure 4 This is the front view of the insert structure.
[0032] In the diagram: 1. Insert plate body; 2. Elastic element; 3. Inductor slot; 4. Anti-slip slot. Detailed Implementation
[0033] 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, not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.
[0034] Example 1
[0035] like Figures 1 to 4 As shown, this embodiment provides a plug-in structure for elastic adhesive-free fixing of inductors, including a plug-in body 1 and elastic members 2 arranged along both sides of the plug-in body 1. The end of the elastic member 2 has a step protruding outward. The elastic member 2 drives the step to elastically expand outward and form a bidirectional self-locking with the inductor.
[0036] This technical solution improves the shape of the plug-in structure by adding elastic elements 2 on both sides. The elastic elements 2 are used to lock onto the inductor slot 3 to achieve a glue-free process for connecting the plug-in and the inductor, which simplifies the process, improves reliability, shortens the production cycle, and enhances environmental friendliness.
[0037] In addition, the insert structure for adhesive-free fixing of inductive elasticity proposed in this utility model may also have the following additional technical features:
[0038] According to one embodiment of the present invention, the insert plate body 1 and the elastic element 2 are integrally injection molded structures.
[0039] This technical solution, through injection molding, ensures the consistency of the tight connection between the insert plate body 1 and the elastic element 2, and improves the overall strength of the insert plate structure.
[0040] According to one embodiment of the present invention, there is a gap between the insert plate body 1 and the elastic member 2, and the elastic member 2 is subjected to force, compression and deformation within the gap space.
[0041] In this technical solution, the gap is such that the elastic element 2 deforms under stress without affecting the structural integrity of the insert plate body 1.
[0042] According to one embodiment of the present invention, the shape of the insert body 1 is rectangular or irregular.
[0043] In this technical solution, the plug-in body 1 can adapt to inductor slots 3 of different shapes and sizes, thereby enhancing the versatility and flexibility of the plug-in body 1.
[0044] According to one embodiment of the present invention, the insert plate body 1 is inserted along the axial direction of the inductor slot 3, and the elastic member 2 is squeezed inward by the inner wall of the inductor slot 3.
[0045] In this technical solution, during the insertion process of the insert plate body 1, the elastic element 2 is in a state of compression deformation, that is, at this time the distance between the anti-slip grooves 4 is less than the distance between the elastic elements 2 on both sides.
[0046] According to one embodiment of the present invention, after the insert plate body 1 is fully inserted into the inductor slot 3, the elastic member 2 recovers its deformation and springs outward, forming an interference fit with the inner wall of the inductor slot 3.
[0047] In this technical solution, after the insert plate body 1 is inserted, the elastic element 2 is in a state of recovery deformation, that is, at this time the spacing of the anti-slip groove 4 is equal to or less than the spacing of the elastic elements 2 on both sides.
[0048] According to one embodiment of the present invention, the elastic element 2 is a slender elastic piece symmetrically distributed on both sides of the insert body 1.
[0049] In this technical solution, the material of the elastic element 2 enables it to form a slender elastic piece and maintain a certain elasticity with the plug body.
[0050] According to one embodiment of the present invention, the elastic member 2 enters the anti-slip groove 4 on the surface of the protective shell, and the step abuts against the bottom of the anti-slip groove 4, so that the elastic member 2 and the protective shell are engaged with each other.
[0051] In this technical solution, the insertion end of the step has an inclined guide surface that facilitates entry into the anti-slip groove 4, and the end of the step has a limiting surface that prevents it from coming out. The limiting surface engages with the inductor's protective casing to prevent over-insertion.
[0052] According to one embodiment of the present invention, the cross-sectional shape of the step is an inverted triangle, a wedge, a tooth, or an irregular shape.
[0053] In this technical solution, the diversity of the cross-sectional shape of the steps allows the elastic element 2 to adapt to anti-slip grooves 4 of different shapes and depths, thereby enhancing the versatility of the structure.
[0054] According to one embodiment of the present invention, the anti-slip groove 4 is a groove arranged axially along the inductor groove 3, and the depth of the anti-slip groove 4 meets the requirement of the end step engagement of the elastic member 2; the distance between the two grooves symmetrically arranged along the center of the protective shell meets the deformation requirements of the elastic members 2 on both sides.
[0055] In this technical solution, the anti-slip groove 4 is the contact part between the insert plate body 1 and the outer surface of the protective shell. The anti-slip groove 4 is used to prevent the insert plate body 1 from wobbling left and right after insertion.
[0056] The usage process of the above embodiments is as follows: Figures 1 to 4 As shown, pinch the elastic members 2 on both sides of the plug body 1 with your hands to compress it; then move the elastic members 2 above the inductor slot 3, align the step at the bottom of the elastic members 2 with the anti-slip slot 4 of the inductor slot 3, and insert it vertically.
[0057] During insertion, the elastic elements 2 on both sides are squeezed inward by the inner wall of the groove and contract. The inclined guide surface of the step facilitates the entry of the elastic elements 2 into the anti-slip groove 4 of the protective shell. As the insert plate body 1 goes deeper, the elastic elements 2 deform in the gap space to keep the structure of the insert plate body 1 intact.
[0058] After full insertion, the elastic element 2 springs back outward, forming an interference fit with the inner wall of the inductor slot 3. Simultaneously, the limiting surface of the step engages with the protective shell, preventing over-insertion and lateral movement. This structure, through the deformation and recovery of the elastic element 2, achieves glue-free fixing of the insertion plate and the inductor, simplifying the process, improving reliability, and enhancing environmental protection.
[0059] It should be noted that the insert plate body of this utility model is not only applicable to... Figures 1 to 4The circular toroidal inductor shown can also be widely used in inductors of other shapes, such as square and rectangular inductors.
Claims
1. A board structure for inductive elastic glue-free fixing, characterized in that, The utility model relates to an inductance plug-in board, comprising a plug-in board body (1) and elastic members (2) arranged on both sides of the plug-in board body (1), wherein the ends of the elastic members (2) are outwardly provided with steps, the elastic members (2) are elastically expanded outwardly with the steps, and the elastic members (2) form bidirectional self-locking with the inductance.
2. The board structure for inductive elastic adhesive-free fixing according to claim 1, characterized in that, The plug-in board body (1) and the elastic members (2) are integrally formed by injection molding.
3. The board structure for inductive elastic point-free adhesive fixing according to claim 1 or 2, characterized in that, There is a gap between the plug-in board body (1) and the elastic members (2), and the elastic members (2) are forced to be extruded and contractively deformed in the gap.
4. The board structure for inductive elastic point-free adhesive fixing according to claim 3, wherein, The plug-in board body (1) is in the shape of a rectangle or a special shape.
5. The board structure for inductive elastic point-free adhesive fixing according to claim 4, wherein, The plug-in board body (1) is inserted along the axial direction of the inductance slot (3), and the elastic members (2) are extruded inwardly by the inner wall of the inductance slot (3) and contractively deformed.
6. The board structure for inductive elastic point-free adhesive fixing according to claim 5, wherein, After the plug-in board body (1) is completely inserted into the inductance slot (3), the elastic members (2) are elastically expanded outwardly and restored to be deformed, and the elastic members (2) form an interference fit with the inner wall of the inductance slot (3).
7. The board structure for inductive elastic adhesive-free fixing according to claim 3, wherein, The elastic members (2) are symmetrical and in the shape of elongated elastic sheets arranged on both sides of the plug-in board body (1).
8. The board structure for inductive elastic adhesive-free fixing according to claim 1 or 7, wherein, The elastic members (2) are arranged in the anti-skid clamping grooves (4) on the surface of the protective shell, and the steps are in contact with the bottoms of the anti-skid clamping grooves (4), so that the elastic members (2) and the protective shell are clamped with each other.
9. The board structure for inductive elastic point-free adhesive fixing according to claim 8, wherein, The cross-sectional shape of the steps is in the shape of an inverted triangle, a wedge, a tooth, or a special shape.
10. The board structure for inductive elastic adhesive-free fixing according to claim 9, wherein, The anti-skid clamping grooves (4) are grooves arranged along the axial direction of the inductance slot (3), the depth of the anti-skid clamping grooves (4) meets the clamping requirement of the steps at the ends of the elastic members (2), and the distance between the two grooves arranged symmetrically along the center of the protective shell meets the deformation requirement of the elastic members (2) on both sides.
Citation Information
Patent Citations
Inductance coil with vertically wound flat wire
CN218730337U