A type of bead inductor that prevents terminal misalignment

Abstract

This utility model discloses a magnetic bead inductor for preventing terminal misalignment, comprising an inductor body, magnetic material, coil, and terminal body. The coil is located at the center of the inductor body, and the interior of the inductor body is uniformly filled with magnetic material. Terminal bodies are located at the bottom of both sides of the inductor body. Pre-reserved slots are provided on both sides of the terminal body via brackets, and pull rods pass through the interior of each pre-reserved slot. A limit block is provided at the end of each pull rod near the terminal body, and a limit groove is formed on the side of each terminal body near the limit block. This utility model, by installing the inductor body, magnetic material, coil, terminal body, bracket, pull rod, pre-reserved slot, return spring, movable plate, limit groove, and limit block, and by adding a mechanical limiting structure, makes the inductor body less prone to misalignment due to thermal stress or mechanical vibration during the welding process.

Description

Technical Field

[0001] This utility model relates to the field of inductor technology, specifically to a magnetic bead inductor that prevents terminal misalignment. Background Technology

[0002] A ferrite bead inductor is a passive electronic component that combines the characteristics of inductance and resistance. Its core function is to suppress high-frequency noise and electromagnetic interference while allowing DC or low-frequency signals to pass through. It is made of magnetic material (ferrite) and has a coil wound inside.

[0003] The external terminals of an inductor, also known as electrodes, are key conductive components that connect the internal coil of the inductor to the external circuit. Generally, the inductor terminals are fixed to the inductor body by welding. During manual welding, improper control of welding parameters (temperature, time, pressure) by the operator can lead to unstable welding quality. Under vibration or impact conditions, the connection between the terminals and the pads may loosen or break. Terminal misalignment may cause the position of the inductor coil to change, thereby affecting the inductance value and quality factor. Utility Model Content

[0004] The purpose of this invention is to provide a magnetic bead inductor that prevents terminal misalignment, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a magnetic bead inductor for preventing terminal misalignment, comprising an inductor body, magnetic material, a coil, and a terminal body. A coil is disposed at the center of the inductor body, and the interior of the inductor body is uniformly filled with magnetic material. Terminal bodies are disposed at the bottom ends of both sides of the inductor body. The two ends of the coil are connected to the terminal bodies via pins. Pre-reserved slots are provided on both sides of the inductor body via brackets, and pull rods pass through the interiors of these pre-reserved slots. A limit block is provided at the end of the pull rod near the terminal body, and a limit groove is formed on the side of the terminal body near the limit block.

[0006] Preferably, the cross-section of the terminal body is L-shaped, and the bottom surface of the terminal body is uniformly provided with heat dissipation grooves.

[0007] Preferably, the cross-section of the heat dissipation groove is trapezoidal, and the inner wall of the heat dissipation groove is uniformly coated with a graphene-copper composite coating.

[0008] Preferably, the interior of the reserved slot is uniformly provided with movable plates via reset springs, and one end of each movable plate is connected to a pull rod.

[0009] Preferably, each of the pull rods is provided with a handle at one end, and the handle extends to the side of the bracket away from the terminal body.

[0010] Preferably, the movable plate is provided with a guide block on the side away from the pull rod, and the reserved groove is provided with guide grooves on both sides that match the guide block.

[0011] Preferably, a high-temperature superconducting tape is disposed at the central position inside the coil, and the outer side of the high-temperature superconducting tape is wrapped with a copper cladding layer, and a graphene layer is disposed on the outer side of the copper cladding layer.

[0012] Preferably, the magnetic material is ferrite powder, and the inductor body is die-cast from the magnetic material in a mold.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: The anti-terminal misalignment magnetic bead inductor is equipped with an inductor body, magnetic material, coil, terminal body, bracket, pull rod, reserved slot, return spring, movable plate, limiting slot, and limiting block. By pulling the pull rod, the movable plate squeezes the return spring in the reserved slot, and the limiting block is stored in the reserved slot. Then, the inductor body and the terminal body are connected in a conventional way. After releasing the pull rod, the limiting block is locked into the limiting slot under the elastic action of the return spring, thereby fixing the terminal body and the inductor body. By adding a mechanical limiting structure, the inductor body is not easily misaligned due to thermal stress or mechanical vibration during the welding process, which can effectively resist thermal cycling and mechanical fatigue, keep the position of the coil constant, and avoid fluctuations in inductance value caused by misalignment. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a front view cross-sectional structural diagram of the present invention;

[0016] Figure 2 This is a side view of the structure of this utility model;

[0017] Figure 3 This is a bottom view of the structure of this utility model;

[0018] Figure 4 For the present utility model Figure 1 Enlarged cross-sectional structural diagram at point A in the middle;

[0019] Figure 5 This is a schematic diagram of the coil cross-sectional structure of this utility model.

[0020] In the diagram: 1. Inductor body; 2. Magnetic material; 3. Coil; 4. Terminal body; 5. Heat sink; 6. Bracket; 7. Handle; 8. Pull rod; 9. Reserved slot; 10. Movable plate; 11. Guide block; 12. Limiting slot; 13. Limiting block; 14. Reset spring; 15. High-temperature superconducting tape; 16. Copper cladding layer; 17. Graphene layer; 18. Pin. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0022] Please see Figure 1-5 The present invention provides an embodiment of a magnetic bead inductor for preventing terminal misalignment, comprising an inductor body 1, a magnetic material 2, a coil 3, and a terminal body 4. The coil 3 is disposed at the central position inside the inductor body 1, and the interior of the inductor body 1 is uniformly filled with the magnetic material 2, which is ferrite powder. The inductor body 1 is die-cast from the magnetic material 2 in a mold, and the integrated molding structure makes the shielding performance of the inductor body 1 better.

[0023] Terminal bodies 4 are provided at the bottom of both sides of the inductor body 1, and the two ends of the coil 3 are connected to the terminal bodies 4 through pins 18 respectively;

[0024] Both sides of the inductor body 1 on the terminal body 4 are provided with reserved slots 9 by brackets 6, and pull rods 8 pass through the interior of the reserved slots 9. A limit block 13 is provided at the end of the pull rod 8 near the terminal body 4, and a limit slot 12 is provided on the side of the terminal body 4 near the limit block 13.

[0025] Each end of the pull rod 8 is provided with a handle 7, and the handle 7 extends to the side of the bracket 6 away from the terminal body 4;

[0026] By pulling the handle 7, the pull rod 8 is moved to one side. The interior of the reserved groove 9 is evenly provided with movable plates 10 through the return spring 14, and one end of each movable plate 10 is connected to the pull rod 8, so that the movable plate 10 squeezes the return spring 14 in the reserved groove 9. At this time, the limit block 13 is stored in the reserved groove 9.

[0027] Then, the inductor body 1 and the terminal body 4 are connected in a conventional way, such as by welding. After that, the pull rod 8 is released, and the limiting block 13 is inserted into the limiting groove 12 under the elastic action of the return spring 14, thereby fixing the terminal body 4 and the inductor body 1.

[0028] By adding a mechanical limiting structure, the inductor body 1 will not shift due to thermal stress or mechanical vibration during the welding process, which can effectively resist thermal cycling and mechanical fatigue, keep the position of the coil 3 constant, and avoid fluctuations in inductance value caused by shift.

[0029] Guide blocks 11 are provided on the side of the movable plate 10 away from the tie rod 8. Guide grooves matching the guide blocks 11 are opened on both sides of the reserved groove 9 to guide and limit the movement of the movable plate 10.

[0030] The cross-section of the terminal body 4 is L-shaped, and the bottom surface of the terminal body 4 is evenly provided with heat dissipation grooves 5 to achieve heat dissipation.

[0031] The cross-section of the heat dissipation slots 5 is trapezoidal. Compared with the rectangular cross-section, the design of the inclined side of the trapezoidal cross-section increases the side wall area of ​​the heat dissipation slots 5, which can provide a larger heat dissipation contact surface under the same volume and accelerate heat transfer.

[0032] Moreover, the trapezoidal cross-section with its hypotenuse can form a triangular support structure, which is more resistant to deformation by external forces than a rectangle, and maintains stability, especially in high-temperature or vibration environments. In addition, the inner wall of the heat sink 5 is uniformly coated with a graphene-copper composite coating, which increases the heat dissipation effect.

[0033] A high-temperature superconducting tape 15 is provided at the center of the inside of coil 3. The high-temperature superconducting material achieves zero resistance below the critical temperature, which significantly reduces the resistance loss of coil 3 and improves the energy transmission efficiency.

[0034] The high-temperature superconducting tape 15 is wrapped with a copper cladding layer 16 to provide a low-impedance current path and prevent local overheating. A graphene layer 17 is provided on the outside of the copper cladding layer 16. The flexibility and high strength of graphene can improve the fatigue resistance of the coil 3 and extend its service life.

[0035] Working Principle: In this embodiment, the inductor body 1 is die-cast from magnetic material 2 in a specific mold. The coil 3 is wrapped in magnetic material 2, and both ends of the coil 3 are connected to the terminal body 4 via pins 18. By pulling the handle 7, the pull rod 8 is moved to one side, causing the movable plate 10 to press the return spring 14 in the reserved groove 9. At this time, the limiting block 13 is housed in the reserved groove 9. Then, the inductor body 1 and the terminal body 4 are connected in a conventional manner. After releasing the pull rod 8, the limiting block 13 is inserted into the limiting groove 12 under the elastic action of the return spring 14, thereby fixing the terminal body 4 and the inductor body 1. The addition of a mechanical limiting structure prevents the inductor body 1 from shifting due to thermal stress or mechanical vibration during the welding process, effectively resisting thermal cycling and mechanical fatigue. This keeps the position of the coil 3 constant, avoiding fluctuations in inductance value caused by shifting. Heat dissipation grooves 5 are evenly distributed at the bottom of the terminal body 4. The cross-section of the heat dissipation groove 5 is trapezoidal. Compared with a rectangle, the design of the inclined side of the trapezoidal cross-section increases the side wall area of ​​the heat dissipation groove 5, providing a larger heat dissipation contact surface in the same volume, accelerating heat transfer. Moreover, the design of the inclined side of the trapezoidal cross-section can form a triangular support structure, which is more resistant to external deformation than a rectangle, especially maintaining stability in high temperature or vibration environments.

[0036] Obviously, the embodiments described above are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0037] 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.

[0038] It should be noted that the terms "first," "second," etc., used 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 in sequences other than those illustrated or described herein.

[0039] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A magnetic bead inductor against terminal offset, characterized in that, The inductor includes an inductor body (1), a magnetic material (2), a coil (3), and a terminal body (4). The coil (3) is located in the center of the inductor body (1), and the inductor body (1) is filled with a magnetic material (2). Terminal bodies (4) are located at the bottom of both sides of the inductor body (1). The two ends of the coil (3) are connected to the terminal body (4) via pins (18). The inductor body (1) on both sides of the terminal body (4) has a reserved slot (9) provided by a bracket (6). A pull rod (8) passes through the reserved slot (9). A limit block (13) is provided at the end of the pull rod (8) near the terminal body (4). A limit groove (12) is opened on the side of the terminal body (4) near the limit block (13).

2. The magnetic bead inductor of claim 1, wherein: The cross-section of the terminal body (4) is L-shaped, and the bottom surface of the terminal body (4) is uniformly provided with heat dissipation grooves (5).

3. The magnetic bead inductor of claim 2, wherein: The cross-section of each heat sink (5) is trapezoidal, and the inner wall of each heat sink (5) is uniformly coated with a graphene-copper composite coating.

4. The magnetic bead inductor of claim 1, wherein: The interior of the reserved slot (9) is uniformly provided with movable plates (10) through reset springs (14), and one end of each movable plate (10) is connected to a pull rod (8).

5. A magnetic bead inductor for preventing terminal misalignment according to claim 1, characterized in that: Each of the pull rods (8) is provided with a handle (7) at one end, and the handle (7) extends to the side of the bracket (6) away from the terminal body (4).

6. A magnetic bead inductor for preventing terminal misalignment according to claim 4, characterized in that: The movable plate (10) is provided with guide blocks (11) on the side away from the pull rod (8), and the reserved groove (9) is provided with guide grooves matching the guide blocks (11) on both sides.

7. A magnetic bead inductor for preventing terminal misalignment according to claim 1, characterized in that: A high-temperature superconducting tape (15) is provided at the center of the coil (3), and a copper cladding layer (16) is wrapped around the outside of the high-temperature superconducting tape (15), and a graphene layer (17) is provided on the outside of the copper cladding layer (16).

8. A magnetic bead inductor for preventing terminal misalignment according to claim 1, characterized in that: The magnetic material (2) is ferrite powder, and the inductor body (1) is die-cast from the magnetic material (2) in a mold.

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