I-type inductor with anti-detachment magnetic core pins

Abstract

This utility model relates to the field of electronic component technology, specifically to an I-shaped inductor with anti-detachment magnetic core pins. It includes an I-shaped inductor body mounted on a circuit board, with a pair of pins at the bottom. A side groove is formed on the bottom outer surface of each pin, with a hanging rod at the bottom of the groove. A clamping assembly is fitted around the pins, comprising a stop plate and a spring. This I-shaped inductor with anti-detachment magnetic core pins, through the hanging rod on the bottom outer surface of the pins, allows the pins to pass through the circuit board and be hooked onto the board, forming an effective mechanical connection that prevents the pins from detaching. The clamping assembly, with its stop plate pressed against the top surface of the circuit board by the spring force, provides continuous clamping force to the pins, preventing tilting and slippage and ensuring the stability of the soldering installation.

Description

Technical Field

[0001] This utility model relates to the field of electronic components technology, specifically to an I-shaped inductor with anti-detachment magnetic core pins. Background Technology

[0002] The magnetic core pins of an I-type inductor are crucial for circuit connections. One end connects to the magnetic core and coil, while the other end interfaces with the circuit board, playing a vital role in current transmission. In electronic devices, a stable connection is essential for the inductor's normal operation and affects the overall circuit system's performance; it serves as a vital bridge between the I-type inductor and external circuits.

[0003] Utility model patent CN212587299U discloses an insulated, open-circuit-proof inductor. This inductor includes an inductor body, which comprises a frame. A magnetic core is installed inside the frame, and a copper core coil is wound around the outer wall of the magnetic core. A shell is installed on the outer side of the frame, and a second adhesive is fixedly connected to the lower end of the shell. Two pins are fixedly connected to the lower end of the frame, with their lower ends penetrating the second adhesive and extending below it. Both pins are connected to the copper core coil via lead wires. The second adhesive is applied mechanically or manually to the lower end of the shell and the upper ends of the two pins to further secure the connection between the pins and the lower end of the shell. This improves the tensile strength of the inductor body and prevents open circuits caused by pin breakage during installation.

[0004] This insulated, open-circuit-proof I-type inductor has its pins fixed to the lower end of the casing only through a second adhesive layer. When the I-type inductor is inserted into the circuit board, it lacks an effective mechanical connection structure, making it difficult to stably restrict the pin position. Sometimes, the inductor pins may come off the circuit board. At the same time, after the pins are inserted into the circuit board, there is no continuous clamping force to maintain their vertical state and position, which may cause them to tilt or slide down, affecting the soldering and installation of the I-type inductor. In view of this, we propose an I-type inductor with anti-detachment core pins. Utility Model Content

[0005] The purpose of this invention is to provide an I-shaped inductor with anti-detachment magnetic core pins to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: An I-shaped inductor with anti-detachment magnetic core pins includes an I-shaped inductor body mounted on a circuit board. The bottom end of the I-shaped inductor body has a pair of pins. A side groove is formed on the bottom outer surface of each pin. A hanging rod is provided at the bottom of the side groove. The hanging rod is integrally formed with the pins. The pins pass through the circuit board and are hung on the circuit board via the hanging rod. A clamping assembly is fitted around the pins. The clamping assembly includes a stop plate fitted around the pins and a spring located above the stop plate. The spring is fitted around the outside of the pins. Under the elastic force of the spring, the stop plate presses downward against the top surface of the circuit board.

[0007] Preferably, the side groove is formed on the pin by cutting, and the hanging rod has an inclined structure with its top end away from the pin; In this setup, the side grooves are precisely sized to accommodate the movement of the hanging rods. The inclined structure of the hanging rods facilitates deformation during insertion and allows for repositioning after passing through the holes.

[0008] Preferably, the hanging rod can be accommodated in the side groove through elastic deformation. By aligning the bottom end of the pin with the hole on the circuit board for inserting the pin and inserting the pin downward, the hanging rod can be elastically deformed and pass through the hole. In this configuration, the hanging rod can retract into the side groove to reduce insertion resistance, and after passing through the hole, it returns to its original shape to achieve hooking, enhancing connection stability.

[0009] Preferably, the abutment has a cylindrical structure, and a sleeve hole is provided in the middle of the abutment, through which the needle passes; In this configuration, the cylindrical abutment plate experiences uniform force, and the sleeve hole ensures that the abutment plate slides smoothly along the pins, stably pressing against the circuit board.

[0010] Preferably, the top surface of the abutment plate is provided with a convex ring in a coaxial shape, and an abutment groove is formed at the top surface of the abutment plate located inside the convex ring. The bottom end of the spring is sleeved in the abutment groove and abuts against the bottom of the groove. In this configuration, the convex ring provides mounting positioning for the rubber sleeve, and the abutment groove limits the bottom end of the spring to prevent it from shifting.

[0011] Preferably, a flexible rubber sleeve is also provided on the outside of the pin. The rubber sleeve has a corrugated tubular structure and is fitted on the outside of the spring. The rubber sleeve is adapted to the extension and retraction of the spring. In this design, the corrugated tubular rubber sleeve can stretch and deform with the spring, providing dust and moisture protection for the spring.

[0012] Preferably, an annular groove is formed at the bottom edge of the outer peripheral surface of the convex ring, a sleeve edge is provided at the bottom end of the rubber sleeve, a retaining ring is provided at the bottom edge of the inner wall of the sleeve edge, the sleeve edge is sleeved on the outside of the convex ring, and the retaining ring extends into the annular groove; In this configuration, the retaining ring and the groove work together to achieve a secure connection between the rubber sleeve and the abutment.

[0013] Preferably, a rigid fastening sleeve is tightly bonded to the outer side of the sleeve edge, and the fastening sleeve has a hollow cylindrical structure, and the fastening sleeve tightly fits the sleeve edge to the outside of the convex ring; In this setting, the fastening sleeve tightens the sleeve edge, enhancing its tightness of connection with the convex ring and preventing the rubber sleeve from falling off.

[0014] Compared with the prior art, the beneficial effects of this utility model are: 1. The I-shaped inductor with anti-detachment magnetic core pins uses a hanging rod on the outer surface of the pin bottom to hang the pin on the circuit board after it passes through the circuit board, forming an effective mechanical connection that prevents the pin from falling off the circuit board. 2. The I-shaped inductor with anti-detachment magnetic core pins uses a clamping component around the pins. The clamping plate in the clamping component presses against the top surface of the circuit board under the action of a spring, providing a continuous clamping force to the pins. This prevents the pins from tilting or slipping, ensuring the stability of the soldering installation. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a cross-sectional view of the overall structure of this utility model; Figure 3 This is a schematic diagram of the installation of the I-shaped inductor body of this utility model; Figure 4 This is a schematic diagram of the structure of the main body of the medium-sized inductor of this utility model; Figure 5 This is an exploded view of the clamping component in this utility model; Figure 6 This is a partial structural cross-sectional view of the backing plate in this utility model; Figure 7 This is a partial structural cross-sectional view of the rubber sleeve in this utility model; The meanings of the labels in the diagram are as follows: 100. I-shaped inductor body; 110. Pin; 111. Side slot; 112. Hanging rod; 200, clamping assembly; 210, abutment plate; 211, sleeve hole; 212, protruding ring; 2121, abutment groove; 2122, annular groove; 220, spring; 230, fastening sleeve; 240, rubber sleeve; 241, sleeve edge; 242, retaining ring; 300. Circuit board. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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. Example 1

[0017] Please see Figures 1-4 The I-shaped inductor with anti-detachment magnetic core pins includes an I-shaped inductor body 100, which is mounted on a circuit board 300. The bottom of the I-shaped inductor body 100 has a pair of pins 110, made of copper, which has good conductivity and a certain degree of elasticity to meet the requirements of current transmission and subsequent elastic deformation. A side groove 111 is formed on the bottom outer surface of the pin 110, providing space for the hanging rod 112 to be inserted into the hole of the circuit board 300. The hanging rod 112 is located at the bottom of the side groove 111, and is integrally formed with the pin 110 using the same copper material, ensuring the integrity of the structure and the connection strength. It can achieve the hanging function through its own elastic deformation. The hanging rod 112 and the pin 110 are integrally formed. After the pin 110 passes through the circuit board 300, it is hung on the circuit board 300 by the hanging rod 112. The hanging rod 112 can effectively prevent the pin 110 from coming off the circuit board 300, thus enhancing the stability of the connection between the inductor and the circuit board 300.

[0018] In this invention, the side groove 111 is formed on the pin 110 by cutting. The side groove 111, formed by cutting, has precise dimensions and can better accommodate and move the hanging rod 112. The hanging rod 112 has an inclined structure with its top point away from the pin 110. This inclined structure facilitates the elastic deformation of the hanging rod 112 when it is inserted into the hole of the circuit board 300, and it can smoothly return to its original position after passing through the hole to achieve hooking. The hanging rod 112 can be accommodated in the side groove 111 through elastic deformation. This characteristic allows the hanging rod 112 to retract into the side groove 111 when the pin 110 is inserted into the hole of the circuit board 300, reducing insertion resistance. By aligning the bottom end of pin 110 with the hole on circuit board 300 for inserting pin 110 and inserting pin 110 downwards, the hanging rod 112 can be elastically deformed and pass through the hole. After the hanging rod 112 passes through the hole, it can return to its original shape by its own elasticity, thereby hanging on circuit board 300 and achieving a stable connection between pin 110 and circuit board 300.

[0019] In this embodiment, the I-shaped inductor with anti-detachment magnetic core pins is used as follows: First, align the bottom end of pin 110 with the corresponding hole on the circuit board 300; then, insert pin 110 downwards. At this time, the hanging rod 112 undergoes elastic deformation due to the pressure of the inner wall of the hole and is received into the side groove 111; next, continue to push pin 110 so that the hanging rod 112 passes through the hole in the circuit board 300; finally, the hanging rod 112 returns to its original shape under its own elasticity, thereby hanging on the bottom surface of the circuit board 300, completing the initial fixation of the I-shaped inductor to the circuit board 300. Example 2

[0020] To ensure that the I-shaped inductor body 100 remains vertical on the circuit board 300 during installation and to prevent it from sliding down, such as... Figures 1-3 and Figures 5-7 As shown, a clamping component 200 is fitted around the pin 110. The clamping component 200 provides a continuous clamping force to the pin 110, preventing it from tilting or sliding. The clamping component 200 includes a clamping plate 210 fitted around the pin 110 and a spring 220 located above the clamping plate 210. The clamping plate 210 is made of plastic and has a certain degree of hardness and wear resistance, allowing it to stably clamp the circuit board 300. The spring 220 is a metal helical spring with good elasticity and toughness, providing continuous elastic force. The spring 220 is fitted around the outside of the pin 110, and the clamping plate 210 presses downward against the top surface of the circuit board 300 under the elastic force of the spring 220. The clamping of the top surface of the circuit board 300 by the clamping plate 210 maintains the vertical position of the pin 110, ensuring the accuracy of subsequent soldering and installation.

[0021] like Figure 5 and Figure 6 As shown, in this embodiment, the abutment plate 210 has a cylindrical structure. The cylindrical abutment plate 210 is subjected to uniform force and can more stably press against the circuit board 300. A sleeve hole 211 is provided in the middle of the abutment plate 210. The size of the sleeve hole 211 is adapted to the pin 110 to ensure that the abutment plate 210 can slide smoothly along the pin 110. The pin 110 passes through the sleeve hole 211. A convex ring 212 is provided coaxially on the top surface of the abutment plate 210. The convex ring 212 is integrally formed with the abutment plate 210 and can provide an installation positioning structure for the sleeve edge 241 of the rubber sleeve 240. An abutment groove 2121 is formed at the top surface of the abutment plate 210 located inside the convex ring 212. The abutment groove 2121 can limit the bottom end of the spring 220 and prevent the spring 220 from shifting under the action of elastic force. The bottom end of the spring 220 is fitted inside the groove 2121 and abuts against the bottom of the groove 2121.

[0022] like Figures 5-7As shown, specifically, a flexible rubber sleeve 240 is also fitted on the outside of the pin 110. The rubber sleeve 240 is made of silicone material and has good flexibility and aging resistance. The rubber sleeve 240 has a corrugated tubular structure, which allows the rubber sleeve 240 to deform synchronously with the extension and contraction of the spring 220, ensuring effective protection for the spring 220. The rubber sleeve 240 is fitted on the outside of the spring 220, which can protect the spring 220 from dust and moisture. The rubber sleeve 240 is adapted to the extension and contraction of the spring 220. An annular groove 2122 is opened at the bottom edge of the outer peripheral surface of the convex ring 212. The annular groove 2122 cooperates with the retaining ring 242 on the inner wall of the sleeve edge 241 to achieve a stable connection between the rubber sleeve 240 and the abutment plate 210. The bottom end of the rubber sleeve 240 is provided with a sleeve edge 241. The inner diameter of the sleeve edge 241 is adapted to the outer diameter of the convex ring 212, which is convenient for fitting on the outside of the convex ring 212. A retaining ring 242 is provided at the bottom edge of the inner wall of the sleeve 241. The retaining ring 242 is integrally formed with the sleeve 241, and is made of the same material as the rubber sleeve 240. It has a certain degree of elasticity and can be tightly locked into the annular groove 2122. The sleeve 241 is fitted on the outside of the convex ring 212, and the retaining ring 242 extends into the annular groove 2122.

[0023] like Figure 2 , Figure 3 and Figure 5 As shown, furthermore, a rigid fastening sleeve 230 is tightly bonded to the outer side of the sleeve 241. The fastening sleeve 230 is made of rigid plastic and can tighten the sleeve 241. The fastening sleeve 230 has a hollow cylindrical structure. The fastening sleeve 230 tightly fits the sleeve 241 onto the outer side of the convex ring 212. Through the tightening action of the fastening sleeve 230, the connection between the sleeve 241 and the convex ring 212 is enhanced, preventing the sleeve 240 from falling off.

[0024] In this embodiment, when the I-shaped inductor with anti-detachment magnetic core pins is installed on the circuit board 300, the elastic force of the spring 220 pushes the abutment plate 210 downward to press against the top surface of the circuit board 300. At the same time, the rubber sleeve 240 is sleeved on the outside of the spring 220, and is fixed by the engagement of the retaining ring 242 of the sleeve edge 241 with the annular groove 2122 of the convex ring 212. The fastening sleeve 230 further strengthens the connection between the sleeve edge 241 and the convex ring 212. Under the action of the abutment component 200, the pin 110 remains in a vertical state, avoiding tilting or slipping, and ensuring the stability of the soldering installation.

[0025] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A magnetic core pin anti-falling E-core inductor, comprising an E-core inductor main body (100), the E-core inductor main body (100) is installed on a circuit board (300), characterized in that: The bottom end of the I-shaped inductor body (100) is provided with a pair of pins (110). A side groove (111) is opened on the bottom outer surface of the pin (110). A hanging rod (112) is provided at the bottom of the side groove (111). The hanging rod (112) is integrally formed with the pin (110). The pin (110) passes through the circuit board (300) and is hung on the circuit board (300) by the hanging rod (112). A clamping component (200) is sleeved on the outer side of the pin (110). The clamping component (200) includes a stop plate (210) sleeved on the outside of the pin (110) and a spring (220) located above the stop plate (210). The spring (220) is sleeved on the outside of the pin (110). The stop plate (210) presses against the top surface of the circuit board (300) downward under the elastic force of the spring (220).

2. The magnetic core pin anti-falling E-core inductor according to claim 1, wherein: The side groove (111) is formed on the pin (110) by cutting, and the hanging rod (112) has an inclined structure with its top end away from the pin (110).

3. The magnetic core pin anti-falling E-core inductor according to claim 1, wherein: The hanging rod (112) can be accommodated in the side groove (111) through elastic deformation. By aligning the bottom end of the pin (110) with the hole on the circuit board (300) for inserting the pin (110) and inserting the pin (110) downward, the hanging rod (112) can be elastically deformed and pass through the hole.

4. The magnetic core pin anti-falling E-core inductor according to claim 1, wherein: The abutment (210) has a cylindrical structure, and a sleeve hole (211) is provided in the middle of the abutment (210), through which the needle (110) passes.

5. The I-type inductor with anti-detachment magnetic core pins according to claim 1, characterized in that: The top surface of the abutment plate (210) is provided with a convex ring (212) in a coaxial shape. A groove (2121) is formed at the top surface of the abutment plate (210) located inside the convex ring (212). The bottom end of the spring (220) is sleeved in the groove (2121) and abuts against the bottom of the groove (2121).

6. The magnetic core pin anti-falling E-core inductor according to claim 5, wherein: A flexible rubber sleeve (240) is also provided on the outside of the pin (110). The rubber sleeve (240) has a corrugated tubular structure and is fitted on the outside of the spring (220). The rubber sleeve (240) is adapted to the extension and retraction of the spring (220).

7. The magnetic core pin anti-drop I-shaped inductor according to claim 6, characterized in that: A ring groove (2122) is provided at the bottom edge of the outer peripheral surface of the convex ring (212). A sleeve edge (241) is provided at the bottom end of the rubber sleeve (240). A retaining ring (242) is provided at the bottom edge of the inner wall of the sleeve edge (241). The sleeve edge (241) is sleeved on the outside of the convex ring (212), and the retaining ring (242) extends into the ring groove (2122).

8. The magnetic core pin anti-drop I-shaped inductor according to claim 7, characterized in that: The outer side of the sleeve (241) is tightly bonded to a rigid fastening sleeve (230), which has a hollow cylindrical structure. The fastening sleeve (230) tightly fits the sleeve (241) onto the outer side of the convex ring (212).

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