High-heat-dissipation double-iron-core inductor

By introducing heat sinks, exhaust fans, and copper heat sinks into the dual-core inductor, combined with ventilation holes and mounting holes, the problem of performance degradation and inconvenient disassembly caused by heat concentration in the inductor is solved, achieving efficient heat dissipation and convenient installation.

CN224067512UActive Publication Date: 2026-03-31CHANGXING CHAONENG ELECTRONICS
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-20
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

Existing dual-core inductors suffer from excessively high temperatures due to concentrated heat, which affects performance and lifespan. Furthermore, they are inconvenient to install and disassemble and are prone to damage.

Method used

It adopts a three-stage heat dissipation method consisting of heat dissipation fins, an exhaust fan, and copper heat dissipation plates. Combined with the design of ventilation holes and mounting holes, it enhances the heat dissipation effect and uses an exhaust fan for forced heat dissipation, simplifying the installation process.

Benefits of technology

It effectively prevents inductor overheating, extends service life, facilitates installation and disassembly, and improves heat dissipation and reliability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a high heat dissipation double iron core inductor, including shell, insulating base, two iron core, said shell inner bottom wall top is provided with insulating base, the insulating base in the shell left and right is provided with two iron core with same structure, the first iron core is wound with a first coil, the second iron core is wound with a second coil, the first coil is wound with a second coil, and the second coil is wound with a third coil. A first coil is wound outside the first iron core, a second coil is wound outside the second iron core, a plurality of heat dissipation fins are arranged on the front wall, the rear wall, the left wall, the right wall and the top wall of the outer side of the shell, air holes are formed in the top wall of the shell, an exhaust fan is fixed to the outer side of the shell, and an exhaust opening of the exhaust fan is connected with the air holes through a pipeline. The beneficial effects of the utility model are that through three heat dissipation modes of the heat dissipation fins, the exhaust fan and the heat dissipation copper sheet, the inductor can be effectively prevented from continuously running in an overheat state, so that the phenomenon of burn-in caused by overhigh temperature can be effectively prevented, and the heat dissipation performance of the inductor is improved; and meanwhile, through the mounting holes, mounting and dismounting are facilitated.
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Description

Technical Field

[0001] This invention belongs to the field of electronic components technology, and is particularly suitable for a high heat dissipation dual-core inductor. Background Technology

[0002] Inductors are commonly used electronic components in circuits, primarily serving functions such as filtering, oscillation, delay, and notch filtering. Currently used dual-core inductors suffer from overheating due to concentrated heat between the core and coil, affecting performance and lifespan; installation and removal are also inconvenient, sometimes leading to inductor damage. Utility Model Content

[0003] The purpose of this invention is to provide a high-heat-dissipation dual-core inductor, which has excellent heat dissipation performance, extended service life, and is easy to install and disassemble, making it particularly suitable for use in transformers.

[0004] The technical solution of this utility model is: a high heat dissipation dual-core inductor, including a shell, an insulating base, and two iron cores. The insulating base is provided above the bottom wall of the inner shell. Two identical first iron cores and second iron cores are provided on the left and right sides of the insulating base inside the shell. A first coil is wound around the first iron core, and a second coil is wound around the second iron core. A first pin and a second pin are respectively led out from the left and right ends of the first coil, and a third pin and a fourth pin are respectively led out from the left and right ends of the second coil. Each pin passes through a corresponding circular hole on the insulating base, and the second pin located below the insulating base is connected to the third pin. The first pin and the fourth pin pass through the corresponding circular holes on the bottom wall of the shell and are located on the outer side of the shell. Multiple heat dissipation fins are provided on the front wall, rear wall, left wall, right wall, and top wall of the outer side of the shell. A left plate and a right plate are symmetrically provided on the lower left and right sides of the shell. Multiple mounting holes are provided on the left and right plates. A vent hole is provided on the top wall of the shell. An exhaust fan is fixed on the outer side of the shell, and the exhaust port of the exhaust fan is connected to the vent hole through a pipe.

[0005] Preferably, both the first coil and the second coil are flat copper wires.

[0006] Preferably, multiple heat dissipation copper fins are provided between the first iron core and the first coil, and between the second iron core and the second coil.

[0007] Preferably, the lower ends of the first iron core and the second iron core are respectively mounted on an insulating base via multiple first rods and multiple second rods.

[0008] Preferably, the top wall of the outer shell is provided with a guide hopper, which is connected to a vent hole.

[0009] Preferably, the exhaust fan is fixed to the outer casing by a connecting frame.

[0010] The advantages and positive effects of this utility model are as follows: by adopting the above technical solution, through the three heat dissipation methods of heat dissipation fins, exhaust fan and heat dissipation copper plate, the inductor can be effectively prevented from operating in an overheated state, so as to prevent the inductor from burning out due to excessive temperature, thus improving its heat dissipation performance; at the same time, the mounting holes facilitate its installation and disassembly. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model.

[0012] Figure 2 This is a side view of the iron core of this utility model.

[0013] In the picture:

[0014] 1. Outer shell 2. Insulating base 3. First iron core

[0015] 4. Second iron core; 5. First coil; 6. Second coil

[0016] 7. Pin 1; 8. Pin 2; 9. Pin 3

[0017] 10. Fourth pin; 11. Heat sink fins; 12. Left plate

[0018] 13. Right panel 14. Exhaust fan 15. Pipeline

[0019] 16. Copper heat sink Detailed Implementation

[0020] like Figure 1 , 2 As shown, the technical solution of this utility model is a high heat dissipation dual-core inductor, including a shell 1, an insulating base 2, and two iron cores. The insulating base 2 is located on the upper part of the inner bottom wall of the shell 1. Two identical first iron cores 3 and second iron cores 4 are located on the left and right sides of the insulating base 2 inside the shell 1. A first coil 5 is wound around the outside of the first iron core 3, and a second coil 6 is wound around the outside of the second iron core 4. A first pin 7 and a second pin 8 are respectively led out from the left and right ends of the first coil 5, and a third pin 9 and a fourth pin 10 are respectively led out from the left and right ends of the second coil 6. Each pin passes through a corresponding circular hole on the insulating base 2, and the second pin 8 located below the insulating base 2 is connected to the third pin 9. The first pin 7 and the fourth pin 10 both pass through corresponding circular holes on the bottom wall of the shell 1 and are located on the outside of the shell 1.

[0021] Multiple heat dissipation fins 11 are provided on the front wall, rear wall, left wall, right wall and top wall of the outer shell 1. A left plate 12 and a right plate 13 are symmetrically provided on the lower left and right sides of the outer shell 1. Multiple mounting holes are provided on the left plate 12 and the right plate 13 respectively, so that the whole shell can be installed and disassembled through the mounting holes. A vent hole is provided on the top wall of the outer shell 1. An exhaust fan 14 is fixed on the outer side of the outer shell 1, and the exhaust port of the exhaust fan 14 is connected to the vent hole through a pipe 15. When heat dissipation is required, the exhaust fan 14 can be used to extract air for heat dissipation.

[0022] In this embodiment, both the first coil 5 and the second coil 6 are flat copper wires.

[0023] In this embodiment, multiple heat dissipation copper sheets 16 are provided between the first iron core 3 and the first coil 5, and between the second iron core 4 and the second coil 6. A 0.5mm thick heat dissipation copper sheet is inserted between the iron core and the coil to increase the heat conduction path (the heat dissipation copper sheet is not shown in the figure).

[0024] In this embodiment, the lower ends of the first iron core 3 and the second iron core 4 are respectively mounted on the insulating base 2 via multiple first rods and multiple second rods.

[0025] In this embodiment, a guide bucket is provided on the top wall of the outer shell 1, and the guide bucket is connected to the vent hole.

[0026] In this embodiment, the exhaust fan 14 is fixed to the outer casing 1 by a connecting bracket.

[0027] The working process and principle of this example: When in use, fix it inside the transformer through the mounting hole, connect the exhaust fan 14 to the power supply, and it can be used. When further heat dissipation is needed from the exhaust fan 14, simply connect the exhaust fan 14 to the power supply.

[0028] The above description provides a detailed account of one embodiment of the present invention. However, this description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the patent coverage of the present invention.

Claims

1. A high-thermal-dissipation dual-core inductor, characterized in that: The utility model relates to a kind of induction coil, including shell, insulating base, two cores, the insulating base is equipped on the inside bottom wall of shell, the insulating base in the shell is equipped with two first cores, second cores of same structure left and right, the first core is wound outside first coil, second core is wound outside second coil, and the left end of first coil is respectively led out first pin, second pin, the left end of second coil is respectively led out third pin, fourth pin, each pin is passed the round hole on the insulating base, and the second pin and third pin are connected in the insulating base below, and the first pin and fourth pin are passed the round hole on the bottom wall of shell, and be located in the outside of shell, the front wall, rear wall, left wall, right wall and top wall on the outside of shell are equipped with multiple heat dissipation fins, left plate and right plate are symmetrically equipped on the outside of shell left and right lower end, and the left plate and right plate are equipped with multiple mounting holes, and air hole is equipped on the top wall of shell, and suction fan is fixed on the outside of shell, and the suction port of suction fan is connected with air hole by pipeline.

2. The high-heat-dissipation dual-core inductor of claim 1, wherein: The first coil and the second coil are both flat copper wires.

3. The high-heat-dissipation dual-core inductor of claim 1, wherein A plurality of heat-dissipating copper sheets are arranged between the first core and the first coil and between the second core and the second coil.

4. The high-heat-dissipation dual-core inductor of claim 1, wherein: The lower ends of the first core and the second core are arranged on the insulating base by a plurality of first rods and a plurality of second rods, respectively.

5. The high-heat-dissipation dual-core inductor of claim 1, wherein: The top wall of the shell is provided with a guide hopper, and the guide hopper is in communication with the air hole.

6. The high-heat-dissipation dual-core inductor of claim 1, wherein: The suction fan is fixed on the shell by a connecting frame.