High-power high-frequency inductor with auxiliary heat dissipation function

Abstract

According to the high-power high-frequency inductor with the auxiliary heat dissipation function, a base is fixedly connected to the lower surface of a heat dissipation aluminum shell, a first magnetic core is fixedly connected to the upper surface of the base, a mounting hole is formed in the first magnetic core, a magnetic core middle column is fixedly connected into the mounting hole, and a flat coil is fixedly connected to the outer surface of the magnetic core middle column; one end of the flat coil is fixedly connected with soldering tin, the other end of the magnetic core middle column is fixedly connected with a second magnetic core, heat conduction silica gel is arranged in the heat dissipation aluminum shell, and heat generated when the inductor body works can be conducted out to the external environment through cooperation of the heat dissipation aluminum shell and the heat conduction silica gel. The cable has excellent moisture-proof, shock-proof, corona-resistant, electric leakage-resistant and chemical medium-resistant properties, and can prolong the service life and improve the performance of equipment.

Description

Technical Field

[0001] The utility model relates to the technical field of high-frequency inductors, and particularly relates to a high-power high-frequency inductor with auxiliary heat dissipation. Background Art

[0002] A high-frequency inductor refers to an inductor component used in high-frequency circuits, generally with an operating frequency above 100 kHz. High-frequency inductors are widely used in high-frequency circuits such as switching power supplies, wireless charging, and radio frequency transceiver circuits for functions such as filtering, matching, and isolation. However, the existing devices have poor heat dissipation effects and are greatly affected by the external environment. For example, "High-frequency Inductor" was disclosed in China, with the application number: "CN201020669610.8". It seals the coaxial cable coil with epoxy resin to form a seamless whole, improving the mechanical strength. However, it cannot increase the effective cross-sectional area of the wire, make full use of the limited assembly space of the magnetic core, achieve the lowest DCR under the same volume, and cannot conduct the heat generated during the operation of the inductor body to the external environment. It does not have moisture-proof, earthquake-resistant, corona-resistant, anti-electric leakage, and chemical medium-resistant properties. Content of the Utility Model

[0003] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art, and provide a high-power high-frequency inductor with auxiliary heat dissipation. Through the cooperation of a flat coil, a middle column of the magnetic core, a first magnetic core, and a second magnetic core, the solid flat wire inductor coil is wound, and the turns are closely and flatly arranged, increasing the effective cross-sectional area of the wire and making full use of the limited assembly space of the magnetic core, achieving the lowest DCR under the same volume, greatly reducing the copper loss of the product, increasing the temperature rise current of the product, with a simple product structure, stable performance, and small temperature difference inside the coil. Therefore, better heat dissipation performance and magnetic field efficiency can be obtained; through the cooperation of a heat dissipation aluminum shell and thermal conductive silicone, the heat generated during the operation of the inductor body can be conducted to the external environment, and it has excellent moisture-proof, earthquake-resistant, corona-resistant, anti-electric leakage, and chemical medium-resistant properties, which can extend the service life and performance of the equipment.

[0004] The present utility model also provides a high-power high-frequency inductor with the above-mentioned auxiliary heat dissipation, including: a heat dissipation aluminum shell, a base is fixedly connected to the lower surface of the heat dissipation aluminum shell, a first magnetic core is fixedly connected to the upper surface of the base, an installation hole is provided on the first magnetic core, a magnetic core middle column is fixedly connected in the installation hole, a flat coil is fixedly connected to the outer surface of the magnetic core middle column, one end of the flat coil is fixedly connected with a solder joint, a second magnetic core is fixedly connected to the other end of the magnetic core middle column, heat-conducting silica gel is arranged in the heat dissipation aluminum shell. Through the cooperation of the flat coil, the magnetic core middle column, the first magnetic core and the second magnetic core, the solid flat wire inductor coil is wound, and the turns are closely and smoothly arranged, increasing the effective cross-sectional area of the wire and making full use of the limited assembly space of the magnetic core, achieving the lowest DCR under the same volume, greatly reducing the copper loss of the product, increasing the temperature rise current of the product, the product structure is simple, the performance is stable, and the temperature difference inside the coil is small. Therefore, better heat dissipation performance and magnetic field efficiency can be obtained. Through the cooperation of the heat dissipation aluminum shell and the heat-conducting silica gel, the heat generated when the inductor body works can be conducted to the external environment, and it has excellent moisture-proof, earthquake-proof, corona-resistant, anti-electric leakage performance and chemical medium resistance, and can extend the service life and performance of the equipment.

[0005] For a high-power high-frequency inductor with auxiliary heat dissipation according to the present utility model, the magnetic core middle column is fixedly connected to the first magnetic core, which can improve the connection stability between devices.

[0006] For a high-power high-frequency inductor with auxiliary heat dissipation according to the present utility model, the flat coil is fixedly connected to the second magnetic core, and the flat coil is fixedly connected to the first magnetic core, which can conduct better.

[0007] For a high-power high-frequency inductor with auxiliary heat dissipation according to the present utility model, an opening is provided on the base, and the material of the base is insulating glass fiber reinforced plastic, which can reduce the influence of the external environment.

[0008] For a high-power high-frequency inductor with auxiliary heat dissipation according to the present utility model, the solder joint is fixedly connected to the first magnetic core, and the solder joint is fixedly connected to the opening, which can make the device more stable and durable.

[0009] For a high-power high-frequency inductor with auxiliary heat dissipation according to the present utility model, the magnetic core middle column and the flat coil are fixed to the first magnetic core through epoxy glue, and the magnetic core middle column and the flat coil are fixed to the second magnetic core through epoxy glue, which can improve the stability of the device.

[0010] For a high-power high-frequency inductor with auxiliary heat dissipation according to the present utility model, the flat coil is connected to another flat coil.

[0011] A high-power high-frequency inductor with auxiliary heat dissipation according to the present utility model, wherein the thermal conductive silicone is encapsulated in a heat dissipation aluminum shell, and the flat coil is made of flat imide-coated modified polyester enameled copper wire, which has excellent heat resistance, moisture resistance and chemical resistance.

[0012] Beneficial effects

[0013] 1. Compared with the prior art, this new type of high-power high-frequency inductor with auxiliary heat dissipation, through the cooperation of the flat coil, the middle column of the magnetic core, the first magnetic core and the second magnetic core, the solid flat wire inductor coil is wound, and the turns are tightly and flatly arranged, increasing the effective cross-sectional area of the wire and making full use of the limited assembly space of the magnetic core, achieving the lowest DCR under the same volume, greatly reducing the copper loss of the product, increasing the temperature rise current of the product, with a simple product structure, stable performance and small temperature difference inside the coil, so better heat dissipation performance and magnetic field efficiency can be obtained.

[0014] 2. Compared with the prior art, this new type of high-power high-frequency inductor with auxiliary heat dissipation, through the cooperation of the heat dissipation aluminum shell and the thermal conductive silicone, can conduct the heat generated during the operation of the inductor body to the external environment, and has excellent moisture-proof, shock-proof, corona-resistant, anti-electric leakage performance and chemical medium resistance, which can extend the service life and performance of the equipment. Description of the drawings

[0015] The following further illustrates the present utility model in conjunction with the drawings and embodiments;

[0016] Figure 1 It is a three-dimensional structure diagram of the high-power high-frequency inductor with auxiliary heat dissipation of the present utility model;

[0017] Figure 2 It is an exploded view of the structure of the high-power high-frequency inductor with auxiliary heat dissipation of the present utility model;

[0018] Figure 3 It is an exploded view of the internal structure of the heat dissipation aluminum shell of the high-power high-frequency inductor with auxiliary heat dissipation of the present utility model;

[0019] Figure 4 It is a schematic diagram of the connection structure of the flat coil of the high-power high-frequency inductor with auxiliary heat dissipation of the present utility model.

[0020] Legend description:

[0021] 1. Heat dissipation aluminum shell; 2. Base; 3. First magnetic core; 4. Mounting hole; 5. Middle column of magnetic core; 6. Flat coil; 7. Solder; 8. Opening; 9. Second magnetic core; 10. Thermal conductive silicone. Detailed implementation manners

[0022] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The function of the accompanying drawings is to supplement the description in the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present utility model. However, it should not be construed as a limitation on the protection scope of the present utility model.

[0023] Referring to Figures 1-4 , in an embodiment of the present utility model, a high-power high-frequency inductor with auxiliary heat dissipation includes: a heat dissipation aluminum shell 1 for heat dissipation and supporting the entire device. A base 2 is fixedly connected to the lower surface of the heat dissipation aluminum shell 1 for fixedly supporting other structures. A first magnetic core 3 is fixedly connected to the upper surface of the base 2. An installation hole 4 is provided on the first magnetic core 3 for installing a magnetic core middle column 5. The magnetic core middle column 5 is fixedly connected inside the installation hole 4 for winding a flat coil 6. The flat coil 6 is fixedly connected to the outer surface of the magnetic core middle column 5. One end of the flat coil 6 is fixedly connected to a solder 7 for leading out the coil. The other end of the magnetic core middle column 5 is fixedly connected to a second magnetic core 9. A thermal conductive silica gel 10 is arranged inside the heat dissipation aluminum shell 1 for dust prevention, waterproofing, moisture-proofing, and heat dissipation.

[0024] The magnetic core middle column 5 is fixedly connected to the first magnetic core 3 for fixing the magnetic core middle column 5. The flat coil 6 is fixedly connected to the second magnetic core 9, and the flat coil 6 is fixedly connected to the first magnetic core 3 for fixing the flat coil. An opening 8 is provided on the base 2 for leading out the solder 7. The material of the base 2 is insulating glass fiber reinforced plastic for insulation. The solder 7 is fixedly connected to the first magnetic core 3 and the solder 7 is fixedly connected to the opening 8 for fixing the solder 7. The magnetic core middle column 5 and the flat coil 6 are fixed to the first magnetic core 3 through epoxy glue, and the magnetic core middle column 5 and the flat coil 6 are fixed to the second magnetic core 9 through epoxy glue for fixing the magnetic core middle column 5, the flat coil 6, the first magnetic core 3, and the second magnetic core 9. The flat coil 6 is connected to another flat coil 6 for connecting two flat coils 9. The materials of the magnetic core middle column 5, the first magnetic core 3, and the second magnetic core 9 are a mixed material made of iron powder core and ferrite material. The thermal conductive silica gel 10 is potted inside the heat dissipation aluminum shell 1. The material of the flat coil 6 is flat imide outer covering modified polyester enameled copper wire.

[0025] Working principle: During production, the flat coil 6 is assembled on the magnetic core middle column 5. The lead wire of the flat coil 6 is de-lacquered and soldered with the solder 7. Then, the flat coil 6 and the magnetic core middle column 5 are installed between the first magnetic core 3 and the second magnetic core 9. The magnetic core middle column 5 is located in the installation hole 4 on the first magnetic core 3. Then it is installed inside the heat dissipation aluminum shell 1, the base 2 is installed, the solder 7 passes through the first magnetic core 3 on the base 2, and then the thermal conductive silica gel 10 is poured inside the heat dissipation aluminum shell 1.

[0026] The embodiments of the present utility model have been described in detail above in conjunction with the accompanying drawings. However, the present utility model is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present utility model within the scope of knowledge possessed by those of ordinary skill in the relevant art.

Claims

1. A high-power high-frequency inductor with auxiliary heat dissipation, characterized in that: include: A heat dissipation aluminum shell (1), wherein the lower surface of the heat dissipation aluminum shell (1) is fixedly connected to a base (2), the upper surface of the base (2) is fixedly connected to a first magnetic core (3), a mounting hole (4) is provided on the first magnetic core (3), a magnetic core center column (5) is fixedly connected in the mounting hole (4), a flat coil (6) is fixedly connected to the outer surface of the magnetic core center column (5), one end of the flat coil (6) is fixedly connected to solder (7), and the other end of the magnetic core center column (5) is fixedly connected to a second magnetic core (9), and thermal conductive silica gel (10) is provided in the heat dissipation aluminum shell (1).

2. A high-power high-frequency inductor with auxiliary heat dissipation according to claim 1, characterized in that: The magnetic core center column (5) is fixedly connected to the first magnetic core (3).

3. The high-power high-frequency inductor with auxiliary heat dissipation according to claim 1 is characterized in that: The flat coil (6) is fixedly connected to the second magnetic core (9), and the flat coil (6) is fixedly connected to the first magnetic core (3).

4. The high-power high-frequency inductor with auxiliary heat dissipation according to claim 1 is characterized in that: An opening (8) is provided on the base (2), and the base (2) is made of insulating glass fiber reinforced plastic.

5. The high-power high-frequency inductor with auxiliary heat dissipation according to claim 1, characterized in that: The solder (7) is fixedly connected to the first magnetic core (3), and the solder (7) is fixedly connected to the opening (8).

6. The high-power high-frequency inductor with auxiliary heat dissipation according to claim 1, characterized in that: The magnetic core center column (5) and the flat coil (6) are fixed to the first magnetic core (3) via epoxy glue, and the magnetic core center column (5) and the flat coil (6) are fixed to the second magnetic core (9) via epoxy glue.

7. The high-power high-frequency inductor with auxiliary heat dissipation according to claim 1, characterized in that: The flat coil (6) is connected to another flat coil (6).

8. The high-power high-frequency inductor with auxiliary heat dissipation according to claim 1, characterized in that: The thermally conductive silica gel (10) is encapsulated in the heat dissipation aluminum shell (1), and the material of the flat coil (6) is a flat imide coated modified polyester enameled copper wire.

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