Flat wire inductor

Abstract

The invention discloses a flat wire inductor, and particularly relates to the technical field of inductors, the flat wire inductor comprises a base, a magnetic core and a wire coil, the flat wire inductor is characterized in that a sliding groove is formed in the base, the magnetic core is connected in the sliding groove in a sliding mode, the wire coil is wound on the outer side of the magnetic core, and the flat wire inductor further comprises a shockproof assembly and a clamping assembly. Through the arrangement of the shockproof assembly, when the wire coil is electrified, the magnetic force generated in the magnetic core is the same as the magnetic force generated in the first permanent magnet and the second permanent magnet, according to the principle that like poles repel, the magnetic core is suspended between the first permanent magnet and the second permanent magnet, and the buffer effect can be achieved when the inductor vibrates; when the outside vibrates for a long time, vibration force enables the magnetic core to drive the wire coil to move together, the two pins of the wire coil slide in the conductive sleeve, and the conductive rod is fixed, so that the risk that the welding position of the conductive rod is deformed or a welding spot is broken due to external vibration is avoided, and the service life of the inductor is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of inductors, and more particularly, to a flat wire inductor. Background Art

[0002] An inductor is a passive electronic component that works based on the principle of electromagnetic induction. It is mainly used to store magnetic field energy, filter, and regulate current changes. Flat wire inductors are widely used in high-frequency power supplies, automotive electronics, industrial equipment and other fields due to their low DC resistance, high current carrying capacity and good heat dissipation characteristics.

[0003] During use, flat wire inductors, despite their compact structure, may experience the risk of solder joint deformation or breakage due to prolonged mechanical vibration and shock (such as in automotive electronics). This can lead to performance degradation or even open circuits. Furthermore, flat wire inductors typically use multi-layer thin-film conductors with low rigidity, making them more susceptible to noise generated by electromagnetic forces during vibration. This can affect the normal operation of the circuit and may also cause interference with other electronic components.

[0004] The present invention provides a flat wire inductor, which aims to solve the problems of vibration and noise generated by the inductor, affecting the normal operation of the circuit, and deformation or breakage of the welding points due to vibration, which reduces the service life of the inductor. Summary of the Invention

[0005] The present invention aims to provide a flat wire inductor to solve the problems mentioned in the background art above, such as the inductor generating vibration and noise, affecting the normal operation of the circuit, and causing deformation or breakage of the solder joints due to vibration, thereby reducing the service life of the inductor.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a flat wire inductor comprising a base, a magnetic core, and a conductive coil, wherein a sliding groove is defined in the base, the magnetic core is slidably connected in the sliding groove, and the conductive coil is wound around the outside of the magnetic core, and further comprising: an anti-vibration assembly disposed inside the base and comprising a first permanent magnet and a second permanent magnet. When the conductive coil is energized, the magnetic core generates a magnetic force. The first permanent magnet and the second permanent magnet have the same magnetic properties as the end of the magnetic core, repelling each other to suspend the magnetic core. When the magnetic core vibrates, the conductive coil moves with the magnetic core; The clamping assembly is arranged on both sides of the conductive coil and includes a first clamping plate and a second clamping plate, which are used to cooperate with the shockproof assembly to drive the conductive coil to move and can limit the position of the conductive coil.

[0007] Preferably, the first permanent magnet and the second permanent magnet are both slidably connected in the sliding groove and arranged at both ends of the magnetic core, and elastic parts are connected between the first permanent magnet and the second permanent magnet and the ends of the sliding groove. The outer wall of the first permanent magnet is fixedly connected to a first connecting rod that is symmetrically arranged, and the outer wall of the second permanent magnet is fixedly connected to a second connecting rod that is symmetrically arranged.

[0008] Preferably, connecting grooves are symmetrically provided on both sides of the sliding groove, and the first connecting rod and the second connecting rod extend into the connecting grooves respectively and are linked with the clamping assembly.

[0009] Preferably, two communication grooves are provided in the base, a conductive sleeve is fixedly connected to each of the communication grooves, and two pins of the conductive coil slide in the conductive sleeve.

[0010] Preferably, the outer wall of the base is provided with fixing grooves the same in number and corresponding in position to the communicating grooves, and conductive rods are fixedly connected in the fixing grooves, with one end of the conductive rods contacting the outer wall of the conductive sleeve.

[0011] Preferably, the first clamping plate and the second clamping plate are both slidably connected to the outer wall of the magnetic core, the outer wall of the first clamping plate is fixedly connected with a symmetrically arranged first fixing rod, and the first fixing rod is fixedly connected to the second connecting rod.

[0012] Preferably, each of the first fixing rods is provided with a connecting port, and the outer wall of the second clamping plate is fixedly connected with a symmetrically arranged second fixing rod, the second fixing rod passes through the connecting port and is fixedly connected to the first connecting rod, and the first fixing rod and the second fixing rod are both slidably connected in the connecting groove.

[0013] Preferably, the elastic member is a coil spring or a silicone elastic gasket, the elastic coefficient of which matches the magnetic repulsion force to ensure the suspension balance of the magnetic core.

[0014] Preferably, the base is made of insulating material, and the first clamping plate and the second clamping plate are both made of heat-conducting material, for conducting the heat of the conductive coil to the base.

[0015] Preferably, the clamping surfaces of the first clamping plate and the second clamping plate are provided with a flexible heat-conducting layer for buffering vibration and enhancing heat conduction.

[0016] Technical effects and advantages of the present invention: 1. Through the setting of the shockproof component, when the conductive coil is energized, a magnetic force is generated in the magnetic core. The first and second permanent magnets are provided at both ends of the magnetic core. The magnetic force generated by them is the same as that of the first and second permanent magnets. According to the principle of like charges repel, the magnetic core is suspended between the first and second permanent magnets, which can provide a buffering effect when the inductor vibrates. The conductive coil is fixed to the magnetic core. When the external vibration lasts for a long time, the vibration force will cause the magnetic core to move with the conductive coil. The two pins of the conductive coil slide in the conductive sleeve, and the conductive rod is fixed. This avoids the risk of deformation or fracture of the conductive rod welding due to external vibration, thereby improving the service life of the inductor. 2. Through the setting of the clamping assembly, the conductive coil is clamped by the first clamping plate and the second clamping plate. When the magnetic core moves upward with the conductive coil, the conductive coil will move against the second clamping plate. There is a repulsive force between the magnetic core and the second permanent magnet, which will push the second permanent magnet upward. When the second permanent magnet moves, it will pull the first clamping plate through the first fixed rod to move together. When the magnetic core moves downward with the conductive coil, similarly, the conductive coil will always be clamped, thereby avoiding the noise generated by the conductive coil due to the vibration of the inductor and improving the performance and service life of the inductor. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is an exploded schematic diagram of the overall structure of the present invention; Figure 3 This is a cross-sectional view of the shockproof assembly structure of the present invention; Figure 4 This is a cross-sectional view of the clamping assembly structure of the present invention; Figure 5 For the present invention Figure 3 A magnified view of the structure of part A.

[0018] The figures are marked as follows: 1. base; 11. sliding groove; 12. magnetic core; 13. conductor coil; 2. shockproof assembly; 21. first permanent magnet; 22. second permanent magnet; 23. first connecting rod; 24. second connecting rod; 25. connecting groove; 26. connecting groove; 27. conductive sleeve; 28. fixed groove; 29. conductive rod; 3. clamping assembly; 31. first clamping plate; 32. second clamping plate; 33. first fixed rod; 34. connecting port; 35. second fixed rod. DETAILED DESCRIPTION

[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example 1

[0020] During use, due to the compact structure of flat wire inductors, multi-layer stacking or flat coils may cause the solder joints to deform or break under long-term mechanical vibration and impact environments (such as automotive electronics), resulting in the risk of performance degradation or open circuit.

[0021] refer to Figure 1 and Figure 2 A flat wire inductor according to an embodiment of the present invention includes a base 1, a magnetic core 12, and a conductive coil 13. The base 1 is provided with a sliding groove 11, the magnetic core 12 is slidably connected in the sliding groove 11, and the conductive coil 13 is wound around the outside of the magnetic core 12.

[0022] refer to Figures 1 to 3 , also includes a shock-proof component 2, which is arranged on the inner side of the base 1, and includes a first permanent magnet 21 and a second permanent magnet 22. When the conductive coil 13 is energized, the magnetic core 12 will generate magnetic force. The first permanent magnet 21 and the second permanent magnet 22 have the same magnetic properties as the ends of the magnetic core 12, and will repel each other to make the magnetic core 12 suspended, and when vibrating, the magnetic core 12 will drive the conductive coil 13 to move together.

[0023] A suspension buffer structure is formed by the same-sex magnetic repulsion between the magnetic core 12 and the first permanent magnet 21 and the second permanent magnet 22 at both ends. The magnetic repulsion can dynamically adjust the repulsion distance during vibration to achieve contactless shock absorption.

[0024] refer to Figure 2 and Figure 4 The first permanent magnet 21 and the second permanent magnet 22 are both slidably connected in the sliding groove 11 and are arranged at both ends of the magnetic core 12. Elastic parts are connected between the first permanent magnet 21 and the second permanent magnet 22 and the ends of the sliding groove 11. The elastic parts are coil springs or silicone elastic gaskets. Their elastic coefficients match the magnetic repulsion force to ensure the suspension balance of the magnetic core 12. The outer wall of the first permanent magnet 21 is fixedly connected to a symmetrically arranged first connecting rod 23, and the outer wall of the second permanent magnet 22 is fixedly connected to a symmetrically arranged second connecting rod 24. Connecting grooves 25 are symmetrically opened on both sides of the sliding groove 11. The first connecting rod 23 and the second connecting rod 24 extend into the connecting groove 25 respectively and are linked with the clamping assembly 3.

[0025] refer to Figure 2 and Figure 5Two connecting grooves 26 are provided in the base 1, and a conductive sleeve 27 is fixedly connected to each connecting groove 26. The two pins of the conductor coil 13 slide in the conductive sleeve 27. The outer wall of the base 1 is provided with fixed grooves 28 with the same number and corresponding positions as the connecting grooves 26. A conductive rod 29 is fixedly connected to the fixed groove 28, and one end of the conductive rod 29 is in contact with the outer wall of the conductive sleeve 27.

[0026] The suspension of the magnetic core 12 decouples the rigid connection between the conductive coil 13 and the base 1 , and the vibration energy is dispersed through the magnetic field to avoid being directly transmitted to the solder joint, thereby significantly reducing the risk of solder joint breakage.

[0027] The base 1 is made of insulating material, such as ceramic material, and its purpose is to have excellent insulation, high temperature resistance, and high thermal conductivity, which helps to effectively and quickly dissipate the heat generated by the wire coil 13.

[0028] Through the setting of the shockproof component 2, when the conductive coil 13 is energized, a magnetic force will be generated in the magnetic core 12, and a first permanent magnet 21 and a second permanent magnet 22 are provided at both ends of the magnetic core 12. The magnetic force generated by them is the same as the magnetic force of the first permanent magnet 21 and the second permanent magnet 22. According to the principle of like charges repel each other, the magnetic core 12 will be suspended between the first permanent magnet 21 and the second permanent magnet 22, which can play a buffering effect when the inductor vibrates. The conductive coil 13 is fixed on the magnetic core 12. When the external vibration lasts for a long time, the vibration force will cause the magnetic core 12 to drive the conductive coil 13 to move together. The two pins of the conductive coil 13 slide in the conductive sleeve 27, and its conductive rod 29 is fixed, avoiding the risk of deformation or breakage of the welding point of the conductive rod 29 due to external vibration, thereby improving the service life of the inductor. Example 2

[0029] Flat wire inductors typically use multi-layer thin-sheet conductors, which have low rigidity and are more likely to generate noise due to electromagnetic forces when vibrating. This affects the normal operation of the circuit and may also cause interference with other electronic components. Therefore, this embodiment improves the device described in the above embodiment.

[0030] refer to Figures 2 to 4 The clamping assembly 3 is arranged on both sides of the conductive coil 13, and includes a first clamping plate 31 and a second clamping plate 32, which is used to cooperate with the shockproof assembly 2 to drive the conductive coil 13 to move, and can limit the clamping of the conductive coil 13.

[0031] refer to Figure 3 and Figure 4 The first clamping plate 31 and the second clamping plate 32 are both slidably connected to the outer wall of the magnetic core 12. The outer wall of the first clamping plate 31 is fixedly connected with a symmetrically arranged first fixing rod 33, and the first fixing rod 33 is fixedly connected to the second connecting rod 24.

[0032] refer to Figure 3 and Figure 4 Each first fixing rod 33 is provided with a connecting port 34, and the outer wall of the second clamping plate 32 is fixedly connected with a symmetrically arranged second fixing rod 35. The second fixing rod 35 passes through the connecting port 34 and is fixedly connected to the first connecting rod 23. The first fixing rod 33 and the second fixing rod 35 are both slidably connected in the connecting groove 25.

[0033] The clamping force of the first clamping plate 31 and the second clamping plate 32 is adjusted in real time with the vibration, effectively suppressing the micro-displacement of the conductive coil 13 caused by electromagnetic force or mechanical vibration, reducing the friction or resonance noise between the conductive coil 13 and the magnetic core 12, and avoiding the deformation of the multi-layer conductive coil 13 caused by insufficient rigidity.

[0034] The first clamping plate 31 and the second clamping plate 32 are both made of heat-conducting materials for transferring heat from the conductive coil 13 to the base 1 . The clamping surfaces of the first clamping plate 31 and the second clamping plate 32 are provided with flexible heat-conducting layers for buffering vibration and enhancing heat conduction.

[0035] By setting the clamping assembly 3, the conductive coil 13 is clamped by the first clamping plate 31 and the second clamping plate 32. When the magnetic core 12 moves upward with the conductive coil 13, the conductive coil 13 will move against the second clamping plate 32. There is a repulsive force between the magnetic core 12 and the second permanent magnet 22, which will push the second permanent magnet 22 to move upward. When the second permanent magnet 22 moves, it will pull the first clamping plate 31 to move together through the first fixing rod 33. When the magnetic core 12 moves downward with the conductive coil 13, similarly, the conductive coil 13 will always be clamped, thereby avoiding the noise generated by the conductive coil 13 due to the vibration of the inductor, thereby improving the performance and service life of the inductor.

[0036] Finally: The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A flat wire inductor comprising a base, a magnetic core, and a conductive coil, characterized in that: A sliding groove is provided in the base, the magnetic core is slidably connected in the sliding groove, the conductive coil is wound around the outside of the magnetic core, and further comprises: an anti-vibration assembly disposed inside the base and comprising a first permanent magnet and a second permanent magnet. When the conductive coil is energized, the magnetic core generates a magnetic force. The first permanent magnet and the second permanent magnet have the same magnetic properties as the end of the magnetic core, repelling each other to suspend the magnetic core. When the magnetic core vibrates, the conductive coil moves with the magnetic core; The clamping assembly is arranged on both sides of the conductive coil and includes a first clamping plate and a second clamping plate, which are used to cooperate with the shockproof assembly to drive the conductive coil to move and can limit the position of the conductive coil.

2. The flat wire inductor according to claim 1, wherein: The first permanent magnet and the second permanent magnet are both slidably connected in the sliding groove and arranged at both ends of the magnetic core. Elastic parts are connected between the first permanent magnet and the second permanent magnet and the ends of the sliding groove. The outer wall of the first permanent magnet is fixedly connected to a first connecting rod that is symmetrically arranged, and the outer wall of the second permanent magnet is fixedly connected to a second connecting rod that is symmetrically arranged.

3. The flat wire inductor according to claim 1, wherein: Connecting grooves are symmetrically provided on both sides of the sliding groove, and the first connecting rod and the second connecting rod extend into the connecting grooves respectively and are linked with the clamping assembly.

4. The flat wire inductor according to claim 1, wherein: Two communication grooves are provided in the base, and a conductive sleeve is fixedly connected in each of the communication grooves. Both pins of the conductive coil slide in the conductive sleeve.

5. The flat wire inductor according to claim 1, wherein: The outer wall of the base is provided with fixing grooves having the same number and corresponding positions as the communicating grooves, and conductive rods are fixedly connected in the fixing grooves, and one end of the conductive rods contacts the outer wall of the conductive sleeve.

6. The flat wire inductor according to claim 1, wherein: The first clamping plate and the second clamping plate are both slidably connected to the outer wall of the magnetic core. The outer wall of the first clamping plate is fixedly connected with a symmetrically arranged first fixing rod, and the first fixing rod is fixedly connected to the second connecting rod.

7. The flat wire inductor according to claim 1, wherein: A connecting port is provided on each of the first fixing rods, and a symmetrically arranged second fixing rod is fixedly connected to the outer wall of the second clamping plate. The second fixing rod passes through the connecting port and is fixedly connected to the first connecting rod. The first fixing rod and the second fixing rod are both slidably connected in the connecting groove.

8. The flat wire inductor according to claim 1, wherein: The elastic member is a coil spring or a silicone elastic gasket, and its elastic coefficient matches the magnetic repulsion force to ensure the suspension balance of the magnetic core.

9. The flat wire inductor according to claim 1, wherein: The base is made of insulating material, and the first clamping plate and the second clamping plate are both made of heat-conducting material, for conducting the heat of the conductive coil to the base.

10. The flat wire inductor according to claim 1, wherein: The clamping surfaces of the first clamping plate and the second clamping plate are provided with flexible heat-conducting layers for buffering vibration and enhancing heat conduction.

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