Inductor suitable for high-frequency large current

Abstract

The utility model discloses an inductor suitable for high-frequency large current. An inductor adapting to high frequency and large current comprises a base, an inductor shell and a supporting and fixing assembly, magnetic rings are fixed to the upper end and the lower end of a magnetic ring fixing support in a penetrating mode, a plurality of winding wires are wound around the two arc-shaped sides of each magnetic ring, the magnetic ring fixing support comprises two splice plates capable of being combined in a matched mode, and penetrating holes used for fixing the magnetic rings are formed in the upper ends and the lower ends of the splice plates in a penetrating mode. Inserting pieces and inserting grooves matched with the inserting pieces are fixed to the upper ends and the lower ends of the sides, close to each other, of the left splicing plate and the right splicing plate correspondingly. By changing the materials of the inductor shell and the magnetic core and the winding mode of the winding wire in the inductor, the inductor can better adapt to high-frequency large current in the using process, the inductor is suspended by installing the supporting and fixing assembly below the whole inductor, and meanwhile the magnetic ring can be safely fixed; therefore, the operation safety of the inductor is ensured while the heat dissipation of the inductor is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of inductor equipment, in particular to an inductor suitable for high frequency and large current. Background Art

[0002] With the rapid development of modern electronic technology, various electronic devices have increasingly higher performance requirements for inductors, especially in application scenarios operating under high-frequency and high-current conditions. Traditional inductors have many shortcomings in core saturation, thermal management, and frequency response, making it difficult to meet the demand for high-performance inductors. Therefore, the invention of an inductor that can adapt to both high-configuration environments and high-current environments has important technical significance and market value.

[0003] The prior art publication number CN217640940U provides an inductor, comprising: a coil, comprising a magnetic core and a coil wound on the magnetic core, the magnetic core being arranged in a circular ring shape; a base for accommodating the coil; a card plate, comprising a connecting portion and a limiting portion, the connecting portion and the limiting portion being integrally formed, the connecting portion being snap-linked to the base, the limiting portion being inserted into the inner ring of the coil, the limiting portion being used to fix the coil, and the provided card plate fixing the coil on the base, making it less likely for the coil on the base to produce adverse displacement, ultimately making the entire inductor convenient to install and use. In addition, the card plate is snap-connected to the base, so the card plate is detachable, the detachable card plate can be replaced and adjusted in time, and can be selected according to the specifications of the coil, with good adaptability.

[0004] In the above-mentioned patent, a base is required to fix the entire magnetic core to prevent the core and the winding from being undesirably offset. However, this method of fixing the magnetic core generates a large amount of heat when high current passes through the inductor, and the traditional inductor has insufficient heat dissipation performance, which will cause the operating temperature to be too high, affecting its reliability and service life. In addition, the magnetic core materials of the inductor, such as ferrite and sendust, are easily saturated under high current conditions, resulting in a significant decrease in inductance value, affecting the stability and efficiency of the circuit. The inductor has large losses and unstable inductance value, which makes it difficult to meet the requirements of high-frequency circuits for inductors. Utility Model Content

[0005] To address the above issues, the present invention provides an inductor suitable for high-frequency and high-current applications. By utilizing a nanocrystalline material for the magnetic core, a highly thermally conductive composite material for the inductor housing, and a multilayer winding structure, the inductor achieves stable inductance, rapid heat dissipation, and reduced inductance losses.

[0006] To achieve the above-mentioned object, the present invention is implemented through the following technical solution: an inductor adapted for high-frequency and high-current operation, comprising a base, an inductor housing, and a support and fixing assembly, wherein a magnetic ring fixing bracket is inserted and fixed to the upper portion of the base, a magnetic ring is fixed through the upper and lower ends of the magnetic ring fixing bracket, the magnetic ring is fixed in a circular vertical position by the magnetic ring fixing bracket, a plurality of windings are wrapped around the arc-shaped sides of the magnetic ring, the magnetic ring is made of nanocrystalline material, the magnetic ring fixing bracket includes two adaptable and combined splicing plates, the upper and lower ends of the splicing plates are penetrated by through-holes for fixing the magnetic ring, and the upper and lower ends of the left and right splicing plates are respectively fixed with plugs and corresponding insertion slots for fixing the left and right splicing plates. The magnetic ring is made of nanocrystalline material and has high magnetic permeability and high saturation magnetic flux density, enabling it to withstand higher currents without saturation.

[0007] Furthermore, the winding is a multi-layer winding structure, and copper foil is embedded between each layer of winding, which improves the current carrying capacity of the inductor, reduces the current density of a single-layer winding, and improves the stability of the inductance value and the frequency response characteristics.

[0008] Furthermore, the base includes a base plate, the base plate is provided with a mounting through hole for fixing the magnetic ring fixing bracket, and the base plate is provided with a plurality of penetrating heat dissipation slots for heat dissipation during operation of the inductor.

[0009] Furthermore, the left and right splicing plates are fixed by gluing at the splicing locations and fixed on the mounting through holes, so that the two splicing plates can be better connected and fixed.

[0010] Furthermore, the material of the inductor housing is a graphene composite material, which can better dissipate heat from the magnetic ring in operation inside.

[0011] Furthermore, the material of the inductor shell is carbon fiber composite material, which allows it to better dissipate heat from the magnetic ring running inside.

[0012] Furthermore, a plurality of adsorption stickers are attached to the bottom of the base plate, and support strips are attached to the adsorption stickers, which are used to lift the entire base so that the magnetic ring is suspended in the air, further accelerating the heat dissipation of the magnetic ring.

[0013] Furthermore, a bending tube is fixedly connected to the upper end of the rear side of the support bar, and a stabilizing hook is connected to the side of the bending tube away from the support bar for hooking the magnetic ring. A limiting groove is provided on the side of the stabilizing hook close to the bending tube, and one end of the bending tube close to the stabilizing hook is nested in the limiting groove to prevent the pipe support rack from being pulled out of the stabilizing hook. An electric push rod is fixedly connected to the end of the pipe support rack close to the stabilizing hook, and the other end of the electric push rod is embedded in the stabilizing hook, and the stabilizing hook uses the electric push rod to move away from or close to the pipe support rack. Beneficial effects

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] The utility model changes the inductor housing, the material of the magnetic core, and the winding method of the winding wire in the inductor to enable the inductor to better adapt to high-frequency and large currents during use. By installing a supporting and fixing component under the entire inductor, the inductor can be suspended in the air, and the magnetic ring can be securely fixed, thereby improving the heat dissipation of the inductor while ensuring the safe operation of the inductor. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of an inductor suitable for high frequency and large current according to the utility model;

[0017] Figure 2 This is a front view structural diagram of an inductor adapted to high frequency and large current according to the present invention;

[0018] Figure 3 This is a schematic diagram of the three-dimensional structure of the base of the utility model;

[0019] Figure 4 This is a schematic diagram of the three-dimensional structure of the magnetic ring fixing bracket of the utility model;

[0020] Figure 5 It is a schematic diagram of the three-dimensional structure of the magnetic ring support and fixing assembly of the present invention.

[0021] In the figure: magnetic ring (1), magnetic ring fixing bracket (2), winding (3), base (4), support and fixing component (5), inductor housing (6), heat dissipation groove (41), mounting through hole (42), base plate (43), plug-in (21), perforation (22), splicing plate (23), limit groove (51), support pipe rack (52), adsorption sticker (53), stabilizing hook (54), electric push rod (55), support bar (56). DETAILED DESCRIPTION

[0022] The technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0023] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] Example

[0025] like Figure 1-Figure 5 As shown,

[0026] The utility model provides an inductor adapted to high frequency and large current. An inductor adapted to high frequency and large current includes a base 4, an inductor housing 6, and a supporting and fixing assembly 5. A magnetic ring fixing bracket 2 is inserted and fixed on the upper part of the base 4. A magnetic ring 1 is fixed through the upper and lower ends of the magnetic ring fixing bracket 2. The magnetic ring 1 is fixed in a circular vertical position by the magnetic ring fixing bracket 2. A plurality of windings 3 are surrounded by the arc-shaped sides of the magnetic ring 1. The magnetic ring 1 is made of nanocrystalline material. The magnetic ring fixing bracket 2 includes two adaptable splicing plates 23. The upper and lower ends of the splicing plates 23 are penetrated and provided with through holes 22 for fixing the magnetic ring 1. The upper and lower ends of the left and right splicing plates 23 close to each other are respectively fixed with plug-ins 21 and insertion slots adapted thereto, which are used to fix the left and right splicing plates 23. The windings 3 are a multi-layer winding structure. Copper foil is embedded between each layer of windings to improve the current carrying capacity of the inductor and reduce the current density of the single-layer winding. The base 4 includes a base plate 43. The base plate 43 is provided with a mounting through hole 4 for fixing the magnetic ring fixing bracket 2. 2. The base plate 43 is provided with a plurality of through-hole heat dissipation slots 41 for heat dissipation during operation of the inductor. The left and right splicing plates 23 are fixed by glue at the splicing point and fixed to the mounting holes 42. The material of the inductor housing 6 is a carbon fiber composite material. Several adsorption stickers 53 are attached to the bottom of the base plate 43. The adsorption stickers 53 are attached to the support bars 56 for lifting the entire base 4. The upper end of the rear side of the support bar 56 is fixedly connected to the bent tube 52, which is away from the support bar. One side of 56 is connected to a stabilizing hook 54 for hooking the magnetic ring 1. A limiting groove 51 is provided on the side of the stabilizing hook 54 close to the bending tube 52. One end of the bending tube 52 close to the stabilizing hook 54 is nested in the limiting groove 51 to prevent the support pipe rack 52 from being pulled out of the stabilizing hook 54. One end of the support pipe rack 52 close to the stabilizing hook 54 is fixedly connected to an electric push rod 55. The other end of the electric push rod 55 is embedded in the stabilizing hook 54. The stabilizing hook 54 uses the electric push rod 55 to move away from or close to the support pipe rack 52.

[0027] Among them, the present invention uses nanocrystalline material as the magnetic core, which has high magnetic permeability and high saturation magnetic flux density, and can withstand larger currents without saturation. In the microstructure of the nanocrystalline material, the grain size is at the nanometer level, which greatly improves the magnetic properties of the material. Through material testing, the saturation magnetic flux density of the nanocrystalline material is more than 20% higher than that of traditional ferrite materials, and the decrease in inductance value under high current conditions is significantly reduced.

[0028] The inductor packaging utilizes highly thermally conductive composite materials, such as graphene or carbon fiber composites, to improve heat dissipation efficiency. Heat sinks or heat sinks are incorporated into the inductor housing design to increase the heat dissipation area and optimize thermal management. Thermal simulation and experimental testing have shown that the thermal conductivity of these composite materials is over 30% higher than that of traditional materials, and the housing design improves heat dissipation efficiency by 20%. In actual testing, the inductor's operating temperature has been reduced by 15-20 degrees Celsius.

[0029] Among them, a multi-layer winding structure is adopted for winding 3. By optimizing the geometric parameters and winding method, the stability of the inductance value and the frequency response characteristics are improved, the consistency and accuracy of the winding are ensured, thereby improving the frequency response performance of the inductor. Electromagnetic simulation and actual testing are carried out. The fluctuation amplitude of the inductance value of the multi-layer winding structure under high-frequency conditions is reduced by more than 10%, the loss is reduced by 8%, and the frequency response range is expanded by more than 5%.

[0030] After the two splicing plates 23 are spliced ​​together, the size thereof can just be inserted into the mounting through hole 42 , so that the splicing plates 23 can stand stably on the base plate 43 .

[0031] The support bar 56 is installed away from the heat dissipation slot 41 so that the support bar 56 does not hinder the normal heat dissipation of the heat dissipation slot 41 .

[0032] The stabilizing hook 54 can rotate around one side of the curved tube 52 . When the stabilizing hook 54 flips upward, it can directly rotate outward along the inside of the magnetic ring 1 and away from the magnetic ring 1 .

[0033] The working principle of the present invention is explained as follows: before installing the inductor, the operator needs to wind the winding 3 on the magnetic ring 1 in a multi-layer winding manner with copper foil embedded between each layer of winding. Then the operator puts the magnetic ring 1 into the perforation 22, and picks up the two splicing plates 23 and clamps them inward so that the plug-in 21 of one splicing plate 23 is inserted into the inner groove of the other plug-in 21. The remaining parts are fixed by gluing at the splicing points to complete the splicing of the plug-in 21 and the magnetic ring 1. The spliced ​​splicing plate 23 is directly inserted into the mounting hole 42 in the base plate 43 to complete the fixation of the entire inductor. After that, the operator sticks the supporting fixing component 5 under the base 4 through the adsorption sticker 53, so that the entire inductor is fixed. The inductor 5 is suspended in the air, and the stabilizing hook 54 is swung along the curved tube 52 until it is under the magnetic ring 1. Then the operator starts the electric push rod 55 to move the stabilizing hook 54 backward along the limiting slot 51 until the stabilizing hook 54 is completely stuck under the magnetic ring 1 and stops. In this way, the running magnetic ring 1 will not deviate in any direction relative to the base 4. At the same time, since the inductor housing 6 is made of high thermal conductivity composite material, the magnetic core in the magnetic ring 1 is made of nanocrystalline material, and the winding 3 is in the form of a multi-layer winding structure, the entire inductor can have the ability to quickly dissipate heat, withstand larger currents without saturation, and have low losses and stable inductance values ​​during operation, so that the inductor can adapt to high frequency and large currents.

[0034] The technical features of the above embodiments can be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0035] Therefore, no matter from which point of view, the embodiments should be regarded as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the foregoing description, and it is intended that all changes that fall within the meaning and range of equivalents of the claims be included in the present invention. Any reference sign in the claims should not be construed as limiting the claim involved.

Claims

1. An inductor adapted to high frequency and high current, characterized in that: The invention comprises a base (4), an inductor housing (6), and a supporting and fixing component (5), wherein a magnetic ring fixing bracket (2) is inserted and fixed on the upper part of the base (4), and a magnetic ring (1) is fixed through the upper and lower ends of the magnetic ring fixing bracket (2), and the magnetic ring (1) is fixed in a circular vertical manner by the magnetic ring fixing bracket (2), and a plurality of windings (3) are wrapped around the arc-shaped sides of the magnetic ring (1), and the magnetic ring (1) is made of nanocrystalline material. The magnetic ring fixing bracket (2) comprises two adaptable splicing plates (23), and the upper and lower ends of the splicing plates (23) are penetrated and provided with through holes (22) for fixing the magnetic ring (1), and the upper and lower ends of the left and right splicing plates (23) close to each other are respectively fixed with plug-ins (21) and plug-in slots adapted thereto, for fixedly connecting the left and right splicing plates (23).

2. The inductor adapted to high frequency and high current according to claim 1, characterized in that: The winding (3) is a multi-layer winding structure, with copper foil embedded between each layer of winding, thereby improving the current carrying capacity of the inductor and reducing the current density of a single-layer winding.

3. The inductor adapted to high frequency and high current according to claim 1, characterized in that: The base (4) includes a base plate (43), a mounting through hole (42) for fixing the magnetic ring fixing bracket (2) is provided in the base plate (43), and a plurality of penetrating heat dissipation slots (41) are provided in the base plate (43) for dissipating heat during operation of the inductor.

4. The inductor adapted to high frequency and high current according to claim 1, characterized in that: The two left and right splicing plates (23) are fixed by glue at the splicing locations and fixed on the mounting through holes (42).

5. The inductor adapted to high frequency and high current according to claim 1, characterized in that: The material of the inductor housing (6) is a graphene composite material.

6. The inductor adapted to high frequency and high current according to claim 1, characterized in that: The material of the inductor housing (6) is carbon fiber composite material.

7. The inductor adapted to high frequency and high current according to claim 3 is characterized in that: A plurality of adsorption stickers (53) are attached to the bottom of the base plate (43), and a support bar (56) is attached to the adsorption stickers (53) for lifting the entire base (4).

8. The inductor adapted to high frequency and high current according to claim 7 is characterized in that: The upper end of the rear side of the support bar (56) is fixedly connected to a bending tube (52), and the side of the bending tube (52) away from the support bar (56) is connected to a stabilizing hook (54) for hooking the magnetic ring (1), and a limiting groove (51) is provided on the side of the stabilizing hook (54) close to the bending tube (52), and one end of the bending tube (52) close to the stabilizing hook (54) is embedded in the limiting groove (51) to prevent the support pipe rack (52) from being pulled away from the stabilizing hook (54), and one end of the support pipe rack (52) close to the stabilizing hook (54) is fixedly connected to an electric push rod (55), and the other end of the electric push rod (55) is embedded in the stabilizing hook (54), and the stabilizing hook (54) uses the electric push rod (55) to move away from or close to the support pipe rack (52).

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