Inductor structure

Abstract

The utility model relates to the technical field of electronic equipment, and discloses an inductor structure which comprises a first plate body and a second plate body. The circumferential side surface of the first winding piece is suitable for winding a first layer of coil; and the second winding piece is arranged around the first winding piece. According to the inductor structure, the first plate body and the second plate body are oppositely arranged, the two ends of the first winding piece abut against the first plate body and the second plate body respectively, the first layer of coil is wound on the circumferential side surface, the second winding pieces are arranged around the first winding piece at intervals, and the second layer of coil is wound on the outer side faces of the second winding pieces. A gap is formed between the first layer of coil and the second layer of coil through the arrangement of the second winding piece, so that heat is easier to dissipate, the heat dissipation capability of the inductor structure is enhanced, and the requirements for miniaturization and high performance of electronic communication equipment are met; and the winding uniformity is ensured while the winding amount is increased.

Description

TECHNICAL FIELD

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

[0002] With the rapid development of electronic communication equipment, electromagnetic interference problem highlights increasingly. Many countries for improving electromagnetic environment, strengthen electromagnetic interference management unceasingly, this promotes the development demand of removing electromagnetic interference element to grow sharply. Among these elements, inductance is often used as the filter of removing high frequency noise in personal computer, telephone and other communication equipment.

[0003] The performance of electronic communication equipment is improved, and also is miniaturized fast, this requires that the components and devices in the equipment not only miniaturization, also need to enhance the heat dissipation capacity. At present, the existing inductance has obvious deficiency when meeting these demands, especially the poor heat dissipation effect. Under the miniaturization requirement, the heat generated by the existing inductance when working is difficult to dissipate effectively, this not only influences the performance stability of inductance itself, also can cause thermal interference to the surrounding electronic components, and then influence the normal operation of the whole electronic communication equipment. SUMMARY

[0004] Therefore, the utility model provides an inductance structure to solve the problem of poor heat dissipation of inductance structure in prior art.

[0005] The utility model provides an inductance structure, comprising:

[0006] The first plate body and the second plate body, the plate surface of the first plate body and the second plate body is opposite and interval arrangement;

[0007] The first winding part, the axial direction both ends of the first winding part are respectively abutted on the opposite two plate surfaces of the first plate body and the second plate body, and the circumferential side surface of the first winding part is suitable for winding the first layer coil;

[0008] The second winding part, the second winding part is arranged around the first winding part, and the first layer coil winding space is reserved between the second winding part and the first winding part, and the outer side surface of the second winding part away from the first winding part forms the winding surface suitable for winding the second layer coil.

[0009] Optionally, a plurality of first positioning holes are arranged on the plate surface of the first plate body, a plurality of second positioning holes are arranged on the plate surface of the second plate body, a plurality of the first positioning holes and a plurality of the second positioning holes are arranged opposite to each other, the second winding part comprises a plurality of winding columns arranged at intervals, and the two ends of the winding column are detachably arranged in the first positioning hole and the second positioning hole.

[0010] Optionally, the winding post is provided with a first clamping structure at both ends, the first positioning hole and the second positioning hole are respectively provided with a second clamping structure, and the first clamping structure is adapted to be clamped in the second clamping structure to achieve detachable connection of the winding post.

[0011] Optionally, the first clamping structure is a clamping groove provided at the end of the winding post, the inner hole surface of the first positioning hole and the second positioning hole is provided with a clamping piece protruding outward from the surface, and the clamping piece is adapted to be clamped in the clamping groove.

[0012] Optionally, the first positioning hole is a semi-closed hole, the second positioning hole is a closed hole, and the thickness of the clamping piece is less than the hole depth of the first positioning hole and the second positioning hole.

[0013] Optionally, the winding post is a quadrangular prism.

[0014] Optionally, the edge of the winding post away from the first winding piece is chamfered to form a circular arc angle.

[0015] Optionally, the number of the winding posts is six, and the winding posts are arranged at equal intervals around the first winding piece.

[0016] Optionally, the first winding piece is provided with a plurality of heat dissipation holes and is in a cylindrical shape.

[0017] Optionally, the second plate body is provided with a mounting hole adapted to mount the inductance structure.

[0018] Beneficial effects

[0019] The inductance structure comprises a first plate body and a second plate body, the plate surfaces of the first plate body and the second plate body are oppositely arranged; a first winding piece, the axial direction of the first winding piece is adapted to abut against the opposite two plate surfaces of the first plate body and the second plate body, and the side surface of the first winding piece is adapted to wind a first layer of coils; a plurality of second winding pieces, the plurality of second winding posts are arranged at intervals around the first winding piece, and the outer side surface of the plurality of second winding pieces away from the first winding piece forms a winding surface adapted to wind coils, and the winding surface is adapted to wind a second layer of coils. The first plate body and the second plate body of the inductance structure are oppositely arranged, the two ends of the first winding piece abut against the two plate bodies respectively, the side surface winds the first layer of coils, the second winding pieces are arranged around the first winding piece, and the outer side surface of the second winding pieces winds the second layer of coils. The arrangement of the second winding pieces forms a space between the first layer of coils and the second layer of coils, so that heat is more easily dissipated, the heat dissipation capacity of the inductance structure is enhanced, the demand for miniaturization and high performance of electronic communication equipment is met, and the uniformity of winding is ensured while the winding amount is increased. BRIEF DESCRIPTION OF DRAWINGS

[0020] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Fig. 1 This is a schematic diagram of an inductor structure according to an embodiment of the present invention;

[0022] Fig. 2 This is a schematic diagram of the inductor structure of this utility model without the second winding component;

[0023] Fig. 3 This is a schematic diagram of the structure of the second winding member according to an embodiment of the present utility model;

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. First plate; 11. First positioning hole; 2. Second plate; 21. Second positioning hole; 22. Mounting hole; 3. First winding component; 31. Heat dissipation hole; 4. Winding post. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0027] The following is combined with Figs. 1 to 3 The following describes embodiments of the present invention.

[0028] According to an embodiment of the present invention, an inductor structure is provided, comprising:

[0029] The first plate 1 and the second plate 2 are arranged with their surfaces facing each other and spaced apart.

[0030] The first winding member 3 has its two ends in the axial direction abutting against the opposite two plates of the first plate 1 and the second plate 2, respectively. The circumferential side surface of the first winding member 3 is suitable for winding the first layer of coil.

[0031] The second winding part is arranged at intervals around the first winding part 3 and has a reserved winding space for the first layer of coils between the first winding part 3, and an outer side of the second winding part away from the first winding part 3 forms a winding surface suitable for winding the second layer of coils.

[0032] Need to be explained, double-layer coil can be wound by a lead, this winding method not only simplifies the manufacturing process, but also ensures that the electrical continuity between the coils is better. At the same time, since it is the same lead, the resistance difference caused by the connection of different leads is reduced during current transmission, thereby helping to improve the overall performance of the inductor.

[0033] Need to be explained, the winding direction of the first layer of coils can be the same as or different from the winding direction of the second layer of coils. When the winding directions of the first layer of coils and the second layer of coils are the same, the magnetic field directions generated by the two layers of coils are consistent, and according to the principle of magnetic field superposition, the overall magnetic field intensity is enhanced. This makes the self-inductance of the inductor increase, which can more effectively hinder the change of current in the circuit, especially suitable for scenarios with high requirements for current stability, such as providing stable DC power supply for precision electronic components, which can better suppress current fluctuations. When the winding directions are different, the magnetic field directions generated by the two layers of coils are opposite, and mutual inductance occurs. This mutual inductance characteristic allows the inductor to produce stronger impedance to signals of specific frequencies when processing alternating current, thereby playing a more precise filtering role. For example, in communication equipment, different frequency band interference signals can be effectively filtered to improve signal purity and communication quality.

[0034] Need to be explained, the shapes of the first plate body 1 and the second plate body 2 can be the same or different. In the embodiment, the first plate body 1 is circular, and the second plate body 2 is rectangular, and the effective area of the second plate body 2 is greater than that of the first plate body 1, to ensure the stability of the entire device.

[0035] The first plate body 1 and the second plate body 2 of the inductor structure are oppositely arranged, the first winding part 3 abuts the two plate bodies at both ends, the circumferential side surface is wound with the first layer of coils, the second winding part is arranged at intervals around the first winding part 3, and the outer side of the second winding part is wound with the second layer of coils. The arrangement of the second winding part forms a space between the first layer of coils and the second layer of coils, which facilitates heat dissipation and enhances the heat dissipation capacity of the inductor structure, meeting the requirements of miniaturization and high performance of electronic communication equipment.

[0036] Further, a plurality of first positioning holes 11 are arranged on the surface of the first plate body 1, a plurality of second positioning holes 21 are arranged on the surface of the second plate body 2, the plurality of first positioning holes 11 and the plurality of second positioning holes 21 are oppositely arranged one by one, and the second winding part includes a plurality of winding columns 4 arranged at intervals, and the two ends of the winding column 4 are respectively detachably arranged in the first positioning hole 11 and the second positioning hole 21.

[0037] In an optional embodiment, the second winding member can also be a cylindrical structure integrally formed, in which case the second winding member needs to be fixed to one end of the first plate body 1 before installation, and then the second plate body 2 is installed and fixed. At this time, in order to facilitate the insertion of the lead wire, a through hole needs to be formed on the surface of the cylindrical second winding member. Of course, in order to improve the heat dissipation effect, a heat dissipation hole can also be formed on the circumferential side surface of the second winding member.

[0038] Need to be explained, the detachable setting of the winding column 4 is convenient for assembly and maintenance, reduces the production difficulty, improves the efficiency, and can be individually disassembled for inspection and replacement during maintenance, reduces the cost and time. Secondly, the structural stability is enhanced, the winding column 4 is stably connected at both ends in the positioning hole, can effectively resist electromagnetic force and external vibration, and ensures that the inductance performance is not affected. In addition, weight reduction holes can also be provided on the first plate body 1 and the second plate body 2, and the weight reduction holes are uniformly distributed between adjacent two first positioning holes 11 or second positioning holes 21.

[0039] Further, the two ends of the winding column 4 are provided with the first clamping structure, the first positioning hole 11 and the second positioning hole 21 are respectively provided with the second clamping structure, and the first clamping structure is suitable for clamping in the second clamping structure to realize the detachable connection of the winding column 4.

[0040] Further, the first clamping structure is a clamping groove provided at the end of the winding column 4, and the inner hole surface of the first positioning hole 11 and the second positioning hole 21 is provided with a clamping piece protruding outward from the surface, and the clamping piece is suitable for clamping in the clamping groove.

[0041] Specifically, during assembly, the two ends of the winding column 4 are aligned with the first positioning hole 11 and the second positioning hole 21, and the clamping groove is tightly buckled with the clamping buckle at the edge of the positioning hole by pressing. When disassembling, the operator can manually operate the clamping piece to separate from the clamping groove. This way of connection is firm, which can effectively prevent the winding column 4 from loosening during use, and the clamping type connection structure is relatively simple, easy to manufacture and maintain.

[0042] In an optional embodiment, internal threads can also be machined in the first positioning hole 11 of the first plate body 1 or the second positioning hole 21 of the second plate body 2, and external threads are machined on one end of the winding column 4. During assembly, the winding column 4 is screwed into the positioning hole by rotating the threads. This connection method has strong fastening, can withstand large external force and vibration, and ensures that the inductance still maintains stable structure in harsh environment. However, the installation and disassembly of the threaded connection is relatively time-consuming, which is suitable for special application scenarios such as inductance elements in aerospace equipment which have high requirements for inductance structural stability and are not sensitive to assembly time.

[0043] Further, the first positioning hole 11 is a semi-closed hole, the second positioning hole 21 is a closed hole, and the thickness of the clamping piece is less than the hole depth of the first positioning hole 11 and the second positioning hole 21.

[0044] Specifically, the first positioning hole 11 is a U-shaped hole with one end open, and the second positioning hole 21 is a waist-shaped hole to facilitate disassembly. Of course, the first positioning hole 11 can also be a semicircular hole, and the second positioning hole 21 is a circular hole. The reason why the first positioning hole 11 is a semi-closed hole is to facilitate the disassembly of the winding post 4 from the open end. Here, the shape of the first positioning hole 11 and the second positioning hole 21 is not specifically limited. The reason why the thickness of the clamping piece is less than the hole depth of the first positioning hole 11 and the second positioning hole 21 is to ensure that the winding post 4 is flush with the first plate body 1 and the second plate body 2 after installation.

[0045] Further, the winding post 4 is a quadrangular prism.

[0046] Specifically, from the perspective of structural stability, the right-angle design of the four sides of the quadrangular prism enables it to form a more stable support structure when connected to the first plate body 1 and the second plate body 2. Compared to other shapes, the quadrangular prism is less likely to displace or sway when subjected to external shocks or electromagnetic forces, ensuring the reliability of the overall inductance structure. In terms of winding, the planar sides of the quadrangular prism provide a regular surface for coil winding, facilitating uniform winding and improving the winding accuracy of the coil, thereby enhancing the consistency of inductance performance. Moreover, the shape of the quadrangular prism is easy to process and manufacture, effectively reducing production costs, improving production efficiency, and meeting the needs of mass production.

[0047] In an optional embodiment, the winding post 4 can be designed as a cylinder. The smooth surface of the cylinder has less friction during winding, enabling the coil to be wound more tightly and smoothly, reducing damage during the winding process, and improving the quality of the coil. At the same time, the isotropic characteristics of the cylinder make it perform more uniformly in terms of electromagnetic properties, which can better meet the needs of some high electromagnetic property requirement applications, such as inductance elements in high-precision sensors.

[0048] Further, the edges of the winding post 4 away from the first winding piece 3 are chamfered to form a circular arc angle.

[0049] As can be easily understood, in the winding operation, the circular arc angle avoids direct contact between the coil and the sharp edges, effectively reducing the risk of the coil being scratched or worn during the winding process, thereby improving the integrity and reliability of the coil and prolonging the service life of the inductance.

[0050] Further, the number of winding posts 4 is six, and they are arranged at equal intervals around the first winding piece 3.

[0051] In the embodiment, the number of winding posts 4 is set to six according to actual production needs, and of course in other embodiments, the number of winding posts 4 can also be set to three, four or more, and the number of winding posts 4 is not limited here.

[0052] Further, the first winding part 3 is provided with a plurality of heat dissipation holes 31, and is in a cylindrical shape.

[0053] It is easy to understand that the plurality of heat dissipation holes 31 provided on the first winding part 3 can improve the heat dissipation capacity of the inductor. When the inductor is working, the current passing through the coil will generate heat, and the heat dissipation holes 31 provide additional heat transfer channels to accelerate the heat dissipation to the surrounding environment, effectively reducing the internal temperature of the inductor. This not only avoids problems such as increased coil resistance and decreased inductor performance caused by high temperature, but also prolongs the service life of the inductor.

[0054] In the embodiment, the heat dissipation holes 31 are a plurality of waist-shaped holes parallel to the axial direction arranged along the axial direction of the first winding part. The elongated design of the waist-shaped holes increases the heat dissipation area, so that heat can be more efficiently exchanged with the outside through these holes. The parallel arrangement to the axial direction conforms to the direction of natural air convection. When the inductor generates heat during operation, hot air can flow more smoothly upward along the waist-shaped holes, and cold air is supplemented from below, forming a good convection heat dissipation channel and improving the heat dissipation efficiency.

[0055] Of course, in some optional embodiments, other shapes of heat dissipation holes 31 can be arranged according to the specific circumstances of the first winding part. For example, circular heat dissipation holes 31 or square heat dissipation holes 31. The circular heat dissipation holes 31 have simple machining process and good fluid mechanics performance, which is conducive to natural air convection heat dissipation; the square heat dissipation holes 31 have more advantages in space utilization, and can be closely arranged according to the structure of the first winding part 3.

[0056] Further, the second plate body 2 is provided with mounting holes 22, and the mounting holes 22 are suitable for mounting the inductor structure.

[0057] Specifically, the mounting holes 22 are provided at the edge of the second plate body 2, and the number of mounting holes 22 is four.

[0058] It is easy to understand that in the embodiment, the second plate body 2 is rectangular, and the four mounting holes 22 are arranged at the four corners of the second plate body 2. The arrangement of the mounting holes 22 can fix the inductor structure from multiple directions. When the inductor is working, no matter which direction the vibration or external force comes from, the force can be evenly dispersed through the mounting holes 22 distributed at the edge, so as to ensure that the inductor structure is stably mounted on the second plate body, and avoid performance degradation or failure caused by looseness.

[0059] In other embodiments, the number of mounting holes 22 can be adjusted according to the size and weight of the inductor structure and the stability requirement of the actual application scenario. For example, for small, thin and light inductor structures with less stability requirement, the number of mounting holes 22 can be reduced to 2, which can meet the basic installation requirements and save processing cost and board space. On the contrary, for large, heavy inductor structures with complex working environment and large vibration, the number of mounting holes 22 can be increased to 6 or 8 to further enhance the stability of the installation. Of course, other numbers of mounting holes 22 can also be provided to ensure the stability of the inductor structure.

[0060] Specifically, the inductor structure can be firmly fixed on the equipment by screws and nuts. During installation, attention should be paid to the appropriate length of the screw to avoid long screws penetrating the board and damaging other components, while ensuring that the screw is tightened to an appropriate degree. Too loose will cause the inductor structure to loosen, and too tight will damage the board or the inductor structure. Of course, in an optional embodiment, a threaded hole can also be provided on the installation, and the screw is passed through the mounting hole 22 to stably fix the inductor structure on the equipment. Here, the fixing method of the inductor structure is not limited. As long as it is stably fixed, it is acceptable.

[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 defined by the appended claims.

Claims

1. An inductive structure, characterized by The application relates to an inductor structure. The inductor structure comprises a first plate body (1) and a second plate body (2), the plate faces of the first plate body (1) and the second plate body (2) are opposite and spaced apart; a first winding part (3) is arranged on the opposite two plate faces of the first plate body (1) and the second plate body (2) respectively, and the circumferential side surface of the first winding part (3) is suitable for winding a first layer of coils; a second winding part is arranged around the first winding part (3) and has a winding space reserved between the first winding part (3) and the second winding part, and the outer side surface of the second winding part away from the first winding part (3) forms a winding surface suitable for winding a second layer of coils. A plurality of first positioning holes (11) are arranged on the plate face of the first plate body (1), a plurality of second positioning holes (21) are arranged on the plate face of the second plate body (2), the plurality of first positioning holes (11) and the plurality of second positioning holes (21) are arranged opposite to each other one by one, and the second winding part comprises a plurality of winding columns (4) arranged at intervals, and the two ends of the winding column (4) are detachably arranged in the first positioning hole (11) and the second positioning hole (21) respectively. The two ends of the winding column (4) are provided with first clamping structures, the first positioning hole (11) and the second positioning hole (21) are respectively provided with second clamping structures, the first clamping structure is suitable for being clamped in the second clamping structure, and the detachable connection of the winding column (4) is realized.

2. The inductive structure of claim 1, wherein, The first clamping structure is a clamping groove arranged at the end of the winding column (4), the inner hole face of the first positioning hole (11) and the second positioning hole (21) is provided with a clamping piece protruding outward from the surface, and the clamping piece is suitable for being clamped in the clamping groove.

3. The inductive structure of claim 2, wherein, The first positioning hole (11) is a semi-closed hole, the second positioning hole (21) is a closed hole, and the thickness of the clamping piece is smaller than the hole depth of the first positioning hole (11) and the second positioning hole (21).

4. The inductive structure of claim 3, wherein, The winding column (4) is a quadrangular prism.

5. The inductive structure of claim 4, wherein, The edge of the winding column (4) away from the first winding part (3) is chamfered to form a circular arc corner.

6. The inductive structure of any of claims 2-5, wherein, The number of the winding column (4) is six, and the winding column (4) is arranged at equal intervals around the first winding part (3).

7. The inductive structure of claim 6, wherein, A plurality of heat dissipation holes (31) are arranged on the first winding part (3), and the first winding part (3) is in a cylindrical shape.

8. The inductive structure of any of claims 2-5, wherein, An installation hole (22) is arranged on the second plate body (2), and the installation hole (22) is suitable for installing the inductor structure.

9. The inductive structure of any one of claims 1-4, wherein, ​ 10. The inductive structure of any one of claims 1-4, wherein, ​

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