Inductor structure

Abstract

The utility model relates to the technical field of inductors, and discloses an inductor structure which comprises an inductor coil which is of a prefabricated spiral structure. The framework is supported in the inductance coil, a groove structure used for containing each turn of inductance coil is arranged in the circumferential direction of the framework, and the groove structure extends to at least one end of the framework. According to the inductor structure provided by the utility model, the prefabricated spiral inductance coil can be accurately manufactured in advance according to the standard, the problems of irregularity and turn number deviation of traditional winding are avoided, the production efficiency and the product consistency are improved, quality inspection and screening in advance are facilitated, and the product quality is guaranteed. And the circumferential groove structure of the framework can accurately position and support each turn of coil, so that the coils are arranged in order, magnetic field distortion is avoided, and the working stability is enhanced. The groove structure extends to at least one end of the framework, so that the coil can slide in from the end part along the groove during installation, and the installation difficulty and the time cost are reduced; and the coil can be conveniently taken out during maintenance, so that the maintainability is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to inductance technical field, concretely relates to an inductance structure. BACKGROUND

[0002] As an important electronic component, inductance has a wide range of applications in the field of electronic circuits, such as power supply circuit, filter circuit, oscillation circuit, etc. With the rapid development of electronic technology, electronic products are moving towards miniaturization, high performance, high integration, which puts forward higher requirements on the performance and production efficiency of inductance.

[0003] In the development process of inductance manufacturing technology, the traditional inductance coil manufacturing is mostly in the form of direct winding on the wire slot of the coil framework. For example, the inductance structure of the prior art CN202534480U adopts this traditional winding scheme, and the inductance coil is formed by winding the wire on the framework wire slot.

[0004] This existing winding technology has obvious defects in specific application. From the production efficiency point of view, the winding process needs to be wound by hand or with the help of equipment, the operation steps are complicated, and the winding speed is limited, which is difficult to realize rapid production and cannot meet the demand of large-scale production of electronic products for inductance supply speed. From the performance point of view, due to the inconsistency of human operation and the limitation of equipment precision in the winding process, it is difficult to ensure that the inductance coil is standard circular. In actual production, the coil shape may be irregular, such as square. The irregular shape of the inductance coil will lead to uneven magnetic field distribution of the inductance, which will affect the inductance value precision and stability of the inductance, and reduce the overall performance of the inductance in the electronic circuit. UTILITY MODEL CONTENTS

[0005] Therefore, the utility model provides an inductance structure to solve the problem of low production efficiency and unstable quality in the prior art.

[0006] The utility model provides an inductance structure, which comprises: an inductance coil, which is a prefabricated spiral structure; a framework, which is supported inside the inductance coil, the framework has a groove structure for accommodating each turn of the inductance coil in the circumferential direction, and the groove structure extends to at least one end of the framework.

[0007] Through the above arrangement, the prefabricated spiral inductor coil can be accurately made in advance according to the standard, avoiding the irregularity and turn deviation problems of traditional winding, improving the production efficiency and product consistency, and facilitating pre-qualification screening to ensure product quality. The groove structure around the skeleton can accurately position and support each turn of the coil, making it arranged neatly, avoiding magnetic field distortion, improving the inductance value precision and quality factor of the inductance, and enhancing the working stability. The groove structure extends to at least one end of the skeleton, so that the coil can be slid into the groove from the end during installation, reducing the installation difficulty and time cost; it is also convenient to remove the coil during maintenance, improving the maintainability. The problems of low production efficiency, difficult control of coil arrangement and inconvenient installation and maintenance of the existing inductors in the background art are effectively solved.

[0008] Optionally, the cross section of the skeleton is cross-shaped, and the four outer edges of the skeleton in the circumferential direction are each provided with a round corner, and the radius of the round corner is adapted to the radius of the spiral structure of the inductor coil.

[0009] Through the above arrangement, the cross section of the skeleton is designed as a cross shape, which optimizes the mechanical structure of the skeleton, so that it can more evenly disperse the stress when supporting the inductor coil, enhances the stability and carrying capacity of the whole skeleton, reduces the structural deformation caused by external force, and further ensures the stability of the inductance performance. The four outer edges of the skeleton in the circumferential direction are each provided with a round corner, and the radius of the round corner is adapted to the radius of the spiral structure of the inductor coil, so that the inductor coil can be more smoothly embedded into the groove structure along the round corner when installed on the skeleton, ensuring the close fit between the inductor coil and the skeleton and enhancing the connection stability between them.

[0010] Optionally, the groove structure extends to both ends of the skeleton.

[0011] Through the above arrangement, when installing the inductor coil, the coil can be smoothly embedded along the groove extending to both ends from any one end of the skeleton, the operation process is more smooth and efficient, and the installation difficulty and jamming caused by the non-through groove are avoided, thereby effectively improving the production efficiency. From the stability of electrical performance, the through groove structure extending to both ends of the skeleton helps the uniform distribution and fixation of the coil on the skeleton.

[0012] Optionally, the inductor coil includes two strands of spaced parallel wound wires.

[0013] Through the above arrangement, it is helpful to optimize the magnetic field distribution of the inductor, the magnetic fields generated by the two wires are superimposed and coupled with each other, which can enhance the magnetic field strength inside the inductor, improve the inductance value of the inductor, make the inductor better play the role of storing and releasing magnetic energy in the circuit, and improve the effect of its filtering, energy storage and other functions. From the anti-interference ability, the structure of interval parallel winding can reduce the capacitive coupling effect between the wires. In high-frequency circuits, the capacitive coupling between the wires is easy to cause signal interference and energy leakage, and the interval arrangement can effectively reduce this influence and improve the anti-interference performance of the inductor, so that the inductor can work more stably in a complex electromagnetic environment, and the normal operation of the electronic equipment is ensured.

[0014] Optionally, the distance between adjacent two grooves in the groove structure is the same.

[0015] Through the above arrangement, the equal-interval grooves provide accurate positioning reference for the winding and embedding of the inductor coil, ensuring that the spacing between each turn of the coil is uniform and consistent, avoiding the coil arrangement disorder caused by inconsistent spacing, thereby significantly improving the installation efficiency and installation quality. The uniform groove spacing helps to make the magnetic field generated by the inductor coil more regular and stable. Since the distance between each turn of the coil is equal, the interaction of the magnetic fields they generate is more uniform, reducing the distortion and fluctuation of the magnetic field, and thereby improving the inductance value accuracy and stability of the inductor.

[0016] Optionally, the cross section of the groove structure is a reverse triangle, and the width of the groove structure gradually decreases inward in the radial direction.

[0017] Through the above arrangement, the reverse triangular and gradually decreasing width groove design makes the inductor coil more convenient to embed. And increases the contact area of the coil and the air, which is conducive to heat dissipation. Compared with the traditional groove structure, it can more effectively reduce the heat generated by the inductor during operation, avoid affecting the performance and service life of the inductor due to high temperature, and improve the reliability and stability of the inductor.

[0018] Optionally, the opening width of the groove structure is greater than the wire diameter of the inductor coil, and the groove width of the groove structure in the radial direction exists in some areas which is less than the wire diameter of the inductor coil.

[0019] Through the above arrangement, the larger opening width makes the inductor coil easier to be put into the groove structure, greatly improves the assembly efficiency of the inductor coil and the skeleton, reduces the installation difficulty and labor cost, avoids unnecessary damage to the inductor coil during installation, and ensures the integrity of the coil. The width of the radial direction exists in some areas which is less than the wire diameter of the inductor coil, so that the inductor coil put in can be firmly clamped in the groove, effectively preventing displacement or loosening due to factors such as vibration and external impact in the subsequent use process, ensuring the stability of the inductor structure and improving the reliability and accuracy of the inductor working in the circuit.

[0020] Optionally, the skeleton is made of insulating material.

[0021] Through the above arrangement, the current leakage and short circuit phenomenon between the inductor coils and between the inductor coils and the external conductors can be effectively prevented. The skeleton made of insulating material isolates the turns of the inductor coils from each other, avoids the electrical connection between the adjacent coils due to contact, ensures the independent electrical performance of each inductor coil, and enables the electric energy to accurately realize electromagnetic conversion and energy storage function according to the design requirements.

[0022] Optionally, the inductor coil is a copper wire coil.

[0023] Through the above arrangement, the resistance of the inductor coil is significantly reduced, the energy loss of the current in the transmission process is reduced, the electric energy conversion efficiency of the inductor is improved, the inductor can more efficiently convert electric energy into magnetic energy and store it when working, thereby enhancing the performance of the inductor.

[0024] Optionally, the skeleton is provided with mounting holes at the centers of the end faces at both ends in the axial direction.

[0025] Through the above arrangement, during the installation of the inductor structure, the mounting holes provide accurate positioning and fixing points. By using bolts, pins and other connecting members to pass through the mounting holes, the inductor structure can be firmly installed at the specified position of the electronic device, ensuring that it will not be displaced or shaken during the operation of the device, ensuring the stability of the relative position between the inductor and other circuit elements, thereby maintaining the electrical connection stability and performance consistency of the entire circuit system. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or the prior art description. Obviously, the drawings described below are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0027] Figure 1 A perspective view of one specific embodiment of the inductor structure provided by the embodiments of the present application;

[0028] Figure 2 A perspective view of the skeleton in the inductor structure provided by the embodiments of the present application;

[0029] Figure 3 A perspective view of the skeleton in the inductor structure provided by the embodiments of the present application; Figure 2 A local enlarged view of A in the inductor structure provided by the embodiments of the present application;

[0030] Figure 4A perspective view of an inductor coil in an inductor structure provided by the embodiment of the present application.

[0031] Mark explanation:

[0032] 1, inductor coil; 2, skeleton; 3, groove structure; 4, mounting hole. Specific implementation

[0033] In order to make the purpose, technical scheme and advantages of the embodiment of the present application more clear, the technical scheme in the embodiment of the present application will be described clearly and completely below in combination with the drawings in the embodiment of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the present application.

[0034] The embodiments of the present application will be described below in combination with Figures 1 to 4 .

[0035] As shown in Figure 1 , a specific embodiment of an inductor structure provided by the present embodiment comprises: an inductor coil 1 and a skeleton 2.

[0036] Specifically, the inductor coil 1 is a prefabricated spiral structure; the skeleton 2 is supported inside the inductor coil 1, and the skeleton 2 has a groove structure 3 for accommodating each turn of the inductor coil 1 in the circumferential direction, and the groove structure 3 extends to at least one end of the skeleton 2.

[0037] In the present embodiment, the prefabricated spiral inductor coil 1 can avoid on-site winding errors, ensure that the number of turns, shape and size strictly comply with the design, realize consistent electrical performance, and facilitate large-scale standardized production. The groove structure 3 of the skeleton 2 in the circumferential direction can accurately position and support the inductor coil 1, so that it is arranged in order, so that the magnetic field distribution is more uniform and stable when the inductor works, reduces distortion and loss, improves inductance precision and quality factor, enhances filtering, energy storage and other functions. The groove extends to at least one end of the skeleton 2, which facilitates the cooperation of the spiral structure of the coil with the groove, and through the rotation of the coil, it is sleeved outside the skeleton 2, which simplifies the coil mounting and dismounting process, improves production efficiency and maintainability, reduces cost and prolongs service life. In addition, the constraint of the groove on the coil also enhances the mechanical stability of the inductor structure, prevents it from shifting or loosening when subjected to external force, and ensures reliable work in complex environments.

[0038] As shown in Figure 2 , Figure 3As shown, this is a specific implementation of the inductor structure provided in this embodiment. The cross-section of the frame 2 is cross-shaped, and the four outer edges of the frame 2 are provided with rounded corners. The radius of the rounded corners is adapted to the radius of the spiral structure of the inductor coil 1.

[0039] Specifically, the cross-section of the frame 2 is designed in a cross shape. While ensuring sufficient structural strength to support the inductor coil 1, it significantly reduces its own weight compared to the traditional solid structure, reducing material usage and production costs, thus aligning with the modern trend of lightweight and low-cost electronic devices. The rounded corners on the four outer edges of the frame 2, with radii matching the helical structure radius of the inductor coil 1, allow the inductor coil 1 to smoothly embed into the groove structure 3 along the rounded corners during installation. This ensures a tight fit between the inductor coil 1 and the frame 2, enhancing the stability of their connection, optimizing the magnetic field distribution of the inductor, and further improving its electrical performance.

[0040] In other embodiments, the frame 2 can also be of other irregular shapes such as polygons. These specially shaped frames 2 can be customized according to specific electromagnetic performance requirements. By changing the shape of the frame 2, the magnetic field distribution inside the inductor can be adjusted, thereby meeting some application scenarios with special requirements for inductor performance.

[0041] like Figure 2 As shown, this is a specific implementation of the inductor structure provided in this embodiment, wherein the groove structure 3 extends to both ends of the skeleton 2.

[0042] Specifically, during production and assembly, operators or automated equipment can smoothly slide the inductor coil 1 into the groove from either end, avoiding alignment difficulties and jamming, reducing installation time, and improving product qualification rate. In terms of electrical performance, it ensures neat and consistent coil installation, resulting in a more uniform and stable magnetic field distribution, improving inductance accuracy and quality factor, and enhancing circuit filtering, energy storage functions, and stability. During maintenance and repair, the coil can be easily removed from both ends without complex disassembly, shortening maintenance time, reducing costs, minimizing component damage, extending inductor life, and improving equipment maintainability and reliability.

[0043] like Figure 4 As shown, this is a specific implementation of the inductor structure provided in this embodiment. The inductor coil 1 includes two parallel wires wound at intervals.

[0044] Specifically, parallel winding enables current to be shunted on two strands of wire, equivalent to increasing the cross-sectional area of the conductor, effectively reducing the inductance resistance, reducing the loss of electric energy transmission, and improving the efficiency of the inductor. At the same time, the magnetic fields generated by the two strands of wire superimpose and couple with each other, enhancing the internal magnetic field strength of the inductor and improving the inductance, so that the inductor performs better in filtering, energy storage and other functions. In terms of anti-interference, the interval arrangement can reduce the capacitive coupling effect between the wires, reduce signal interference and energy leakage in high-frequency circuits, and improve the stability of the inductor in complex electromagnetic environments.

[0045] As shown in Figure 2 , a specific embodiment of the inductor structure provided in the present embodiment, the distance between the two adjacent grooves in the groove structure 3 is the same.

[0046] Specifically, the equidistant grooves provide precise positioning for winding and embedding operations, whether manual operation or automated equipment operation, can more efficiently and accurately place the coils into the grooves one by one, avoiding disordered arrangement, and improving installation efficiency and quality. In terms of electrical performance, the uniform spacing makes the magnetic fields generated by each turn of the coil interact more uniformly, reducing magnetic field distortion and fluctuations, improving inductor precision and stability, and enabling the inductor to more accurately achieve filtering, energy storage and other functions in the circuit.

[0047] As shown in Figure 3 , a specific embodiment of the inductor structure provided in the present embodiment, the cross section of the groove structure 3 is a reverse triangle, and the width of the groove structure 3 gradually decreases in the radial direction.

[0048] Specifically, the design of the reverse triangular and gradually decreasing width grooves makes the inductor coil 1 more convenient to embed. And it increases the contact area between the coil and the air, which is conducive to heat dissipation, compared with the traditional groove structure 3, it can more effectively reduce the heat generated by the inductor during operation, avoid affecting the performance and life of the inductor due to high temperature, and improve the reliability and stability of the inductor.

[0049] As shown in Figure 3 , a specific embodiment of the inductor structure provided in the present embodiment, the opening width of the groove structure 3 is greater than the wire diameter of the inductor coil 1, and the groove width of the groove structure 3 in the radial direction is less than the wire diameter of the inductor coil 1 in some areas.

[0050] Specifically, the opening width of the groove structure 3 is greater than the wire diameter of the inductor coil 1, which makes it easier for the coil to align and smoothly enter the groove during installation, reducing the installation difficulty and improving the assembly efficiency. And the width of the groove in the radial direction is less than the wire diameter of the inductor coil 1 in some areas, when the coil is embedded in this area, it will be tightly clamped, effectively preventing the coil from moving axially or radially due to factors such as vibration and external force in subsequent use, ensuring the stability of the inductor structure.

[0051] As Figure 2 shown, a specific embodiment of the inductance structure provided by the present embodiment, the skeleton 2 is an insulating material.

[0052] Specifically, the skeleton 2 can be selected from any one of polystyrene, alumina ceramic or silicone rubber and other insulating materials. The insulating skeleton 2 can effectively isolate each turn of the inductor coil 1, prevent current leakage and short circuit phenomenon between adjacent coils, ensure that each coil works independently, so that the electric energy can accurately realize electromagnetic conversion and energy storage function. Avoid the inductance and the surrounding conductive components form a conductive path, reduce electromagnetic interference, and ensure the stable operation of the entire circuit system.

[0053] It should be noted that the present embodiment does not limit the material used by the skeleton 2, and provides flexibility and wide possibility for inductance structure design and application. For example, ordinary household low-power appliances and other cost-sensitive and environmentally stable scenarios can select polystyrene and other low-cost and easy-to-process plastic skeleton 2. For electric vehicle charging modules and other occasions with high requirements for heat dissipation and temperature stability, ceramic materials such as alumina ceramic with good heat conduction and high hardness are more suitable.

[0054] As Figure 4 shown, a specific embodiment of the inductance structure provided by the present embodiment, the inductor coil 1 is a copper wire coil.

[0055] Specifically, copper has high conductivity, which can reduce resistance, reduce power loss, and improve energy conversion efficiency, and is suitable for devices with high requirements for electrical energy utilization. In addition, copper has good ductility and good flexibility, and can be easily processed into different specifications and shapes of conductors, which are not easy to break during winding, ensuring production stability and yield.

[0056] In addition, in other embodiments, the inductor coil 1 can be selected from alloy wire, for example, copper-nickel alloy has good corrosion resistance and high resistivity, which can be used for inductors that require high resistance values or work in harsh corrosive environments. Iron-nickel alloy has unique magnetic properties and can enhance the magnetism of the inductor to some extent, which is suitable for applications with special requirements for magnetic field strength.

[0057] As Figure 1 shown, a specific embodiment of the inductance structure provided by the present embodiment, the skeleton 2 is provided with a mounting hole 4 at the center of the end face of the axial direction.

[0058] Specifically, during installation, the mounting hole 4 provides accurate positioning, and the symmetrical design makes installation simple and efficient, which can avoid electrical connection problems caused by deviation. In use, the connecting piece passes through the mounting hole 4 to fix the inductor, which is stable, ensures that the inductor and other elements do not change position, avoids performance fluctuations and electromagnetic interference, and improves circuit reliability.

[0059] Working principle:

[0060] The pre-prepared spiral inductor coil 1 avoids the error caused by on-site winding, ensures that the number of turns, shape and size strictly meet the design requirements, guarantees the consistency of inductance electrical performance from the source, and is beneficial to large-scale standardized production. The special groove structure 3 is arranged on the circumference of the framework 2, the distance between the two adjacent grooves is the same, the cross section is inverted triangular, the opening width is greater than the wire diameter of the inductor coil 1, there is a part of the area in the radial direction whose width is less than the wire diameter, and the groove extends to both ends of the framework 2. The inductor coil 1 is extremely convenient to install, can be smoothly and accurately positioned from any end, improves the production and assembly efficiency, firmly clamps the coil to prevent displacement, ensures the stability of the inductance structure and the neatness of the coil arrangement, and further makes the magnetic field distribution more uniform and stable during inductance work, reduces distortion and loss, improves the inductance value precision and quality factor, and guarantees the product quality. The installation hole 4 in the center of the end face of the axial two ends of the framework 2 is designed, which facilitates the accurate and stable installation of the inductor on the equipment, and improves the overall reliability.

[0061] Although the embodiments of the present application are described in conjunction with the drawings, various modifications and changes can be made by those skilled in the art without departing from the spirit and scope of the present application, and such modifications and changes fall within the scope of the present application.

Claims

1. An inductor structure, characterized in that, include: The inductor coil (1) is a prefabricated spiral structure; A frame (2) is supported inside the inductor coil (1), the frame (2) having a groove structure (3) in the circumferential direction for accommodating each turn of the inductor coil (1), the groove structure (3) extending to at least one end of the frame (2).

2. The inductor structure according to claim 1, characterized in that, The cross-section of the skeleton (2) is cross-shaped, and the four outer edges of the skeleton (2) are rounded. The radius of the rounded corners is adapted to the radius of the spiral structure of the inductor coil (1).

3. The inductor structure according to claim 1, characterized in that, The groove structure (3) extends to both ends of the skeleton (2).

4. The inductor structure according to claim 1, characterized in that, The inductor coil (1) comprises two parallel strands of wire wound at a distance from each other.

5. The inductor structure according to claim 1, characterized in that, In the groove structure (3), the distance between two adjacent grooves is the same.

6. The inductor structure according to claim 1, characterized in that, The cross-section of the groove structure (3) is an inverted triangle, and the width of the groove structure (3) gradually decreases inward in the radial direction.

7. The inductor structure according to claim 6, characterized in that, The opening width of the groove structure (3) is greater than the wire diameter of the inductor coil (1), and the groove width of a portion of the groove structure (3) in the radial direction is smaller than the wire diameter of the inductor coil (1).

8. The inductor structure according to any one of claims 1-7, characterized in that, The frame (2) is made of insulating material.

9. The inductor structure according to any one of claims 1-7, characterized in that, The inductor (1) is a copper wire coil.

10. The inductor structure according to any one of claims 1-7, characterized in that, The frame (2) has mounting holes (4) at the center of both ends of its axial direction.

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