A combined double-coil inductance component

By designing a combined dual-coil inductor assembly, using flat wire dual coils and compression springs, the inductor assembly can be quickly installed and removed, solving the problems of high cost and low efficiency of traditional inductor assemblies, and improving the production efficiency and electromagnetic performance of circuit boards.

CN224582109UActive Publication Date: 2026-07-31CHONGQING HUANMEI ELECTRONIC TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHONGQING HUANMEI ELECTRONIC TECH CO LTD
Filing Date
2025-07-02
Publication Date
2026-07-31

AI Technical Summary

Technical Problem

In existing electronic products, the layout cost of inductor components is high, the processing efficiency is low, and it is not convenient to quickly disassemble and assemble. The traditional dual-wire parallel winding and same-direction through-hole insertion technology has the problem of high impedance.

Method used

It employs a combined dual-coil inductor assembly, including an I-shaped ferrite core and an E-shaped ferrite core, using flat wire dual coils, and achieving quick installation and removal through compression springs and fixing components, while utilizing surface mount technology to optimize the electronic circuit design.

Benefits of technology

It reduces the production cost of circuit boards, improves processing efficiency, reduces mutual interference between circuits, simplifies the installation and disassembly process, and enhances the electromagnetic performance and operational stability of inductor components.

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Abstract

This utility model provides a combined dual-coil inductor assembly, relating to the field of inductor assembly technology. It includes an I-shaped ferrite core and an E-shaped ferrite core, with a flat-wire dual coil positioned between the I-shaped and E-shaped ferrite cores. A mounting plate is provided on the side of the I-shaped ferrite core. The use of a flat-wire dual coil, compared to traditional dual-wire parallel winding with co-directional through-hole insertion technology, reduces the cost of circuit board production. Furthermore, surface mount technology is faster and more convenient in electronic circuit design, reduces mutual interference during circuit operation, and greatly improves circuit performance. During installation, the moving block is aligned with the moving slot and inserted, causing the compression spring to contract and the moving block to smoothly enter the moving slot. Simultaneously, the fixing plate is inserted into the fixing slot, completing the quick installation through the fixing assembly. During disassembly, pushing the movable rod causes the moving block to pop out of the moving slot under the reaction force of the compression spring, achieving convenient disassembly and improving production efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of inductor component technology, and in particular to a combined dual-coil inductor component. Background Technology

[0002] According to Chinese Patent No. CN212161516U, an inductor assembly includes first and second magnetic cores and a conductive component between the first and second magnetic cores. The first magnetic core includes a first gap, an intermediate member, a surrounding member connecting the intermediate member, a space formed between the intermediate member and the surrounding member, and two through holes. The two sides of the U-shaped body of the conductive component are inserted into the two through holes to accommodate the conductive component in the space. The two ends of the two sides extending from the bottom surface of the first magnetic core are bent to form two connecting portions. The second magnetic core covers the top surface of the first magnetic core so that the bottom of the U-shaped body is sandwiched between the intermediate member and the second magnetic core. Therefore, the first gap can control the inductance and saturation current of the inductor assembly of this invention, and the inductor assembly of this invention has a three-dimensional magnetic flux path.

[0003] The above-mentioned documents and existing technologies have the following technical problems: Current electronic products require many electronic components to be laid out on the circuit board. The traditional method is to insert electronic components onto the circuit board using a double-wire parallel winding through-hole insertion technology. However, this method is costly, has low processing efficiency, and may have problems such as high impedance. Furthermore, inductor components are not easy to quickly install and remove. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a combined dual-coil inductor assembly.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a combined dual-coil inductor assembly, comprising an I-shaped ferrite core and an E-shaped ferrite core, wherein a flat wire dual coil is provided between the I-shaped ferrite core and the E-shaped ferrite core, a mounting plate is provided on the side of the I-shaped ferrite core, and a mounting block is provided on the side of the E-shaped ferrite core, a movable groove is provided on the surface of the mounting plate, a movable rod is provided inside the movable groove, a compression spring is provided on the surface of the movable rod, a movable block is provided on the bottom surface of the mounting block, a fixing plate is provided on the bottom surface of the mounting block, a movable groove is provided inside the mounting plate, and a fixing component is provided inside the movable groove.

[0006] Preferably, the fixing assembly includes a buffer spring, a connecting plate, a guide rod, a fixed rod, and a movable rod. The end of the buffer spring is provided with a connecting plate, the surface of the connecting plate is connected through the guide rod, the surface of the connecting plate is provided with a fixed rod, and the side of the connecting plate is provided with a movable rod.

[0007] Preferably, the E-shaped ferrite core is disposed on the surface of the I-shaped ferrite core, and the shape and position of the flat wire double coil are adapted to the I-shaped ferrite core and the E-shaped ferrite core, respectively.

[0008] Preferably, the shape of the mounting plate matches the shape of the mounting block, and the side of the mounting block has a groove.

[0009] Preferably, the shape and position of the movable block correspond to the movable groove, and the movable block is disposed on the top surface of the movable rod.

[0010] Preferably, the surface of the mounting block is provided with a fixing groove, and the shape and position of the fixing plate correspond to the fixing groove.

[0011] Preferably, the shape of the fixing plate is adapted to the fixing rod, and the end of the fixing rod is inserted into the surface of the fixing plate.

[0012] Beneficial effects

[0013] This invention employs a flat wire double coil, a compression spring, and a fixing component. Compared to traditional double-wire parallel winding with unidirectional through-hole insertion technology, the flat wire double coil results in a smaller component size, reduced area, and lower circuit board production costs. Furthermore, surface mount technology offers faster and more convenient electronic circuit design, reduces mutual interference during circuit operation, significantly improves circuit performance, increases processing efficiency, and reduces impedance issues. During installation, the moving block is aligned with the moving slot and inserted. The moving block presses against the moving rod, causing the compression spring to contract, allowing the moving block to smoothly enter the moving slot. Simultaneously, the fixing plate is inserted into the fixing slot, and a buffer spring pushes the connecting plate, inserting the fixing rod into the fixing plate for quick installation. During disassembly, pushing the movable rod disengages the fixing rod from the fixing plate, and the moving block pops out of the moving slot under the reaction force of the compression spring, enabling convenient disassembly. This greatly simplifies the installation and disassembly process of the inductor component and improves production efficiency. Attached Figure Description

[0014] Figure 1 This is an axonometric view of the present invention;

[0015] Figure 2 This is a split view of the I-shaped ferrite core and the E-shaped ferrite core of this utility model.

[0016] Figure 3 This is a front cross-sectional view of the mounting plate and mounting block of this utility model;

[0017] Figure 4 This is a top sectional view of the mounting plate and mounting block of this utility model.

[0018] Legend:

[0019] 1. I-shaped ferrite core; 2. E-shaped ferrite core; 3. Flat wire double coil; 4. Mounting plate; 5. Mounting block; 6. Fixing slot; 7. Moving block; 8. Moving slot; 9. Moving rod; 10. Compression spring; 11. Fixing plate; 12. Groove; 13. Movable slot; 14. Fixing assembly; 1401. Buffer spring; 1402. Connecting plate; 1403. Guide rod; 1404. Fixing rod; 1405. Movable rod. Detailed Implementation

[0020] To make the technical means, creative features, and achieved objectives and effects of this utility model easier to understand, the present utility model is further described below with reference to specific embodiments and accompanying drawings. However, the following embodiments are merely preferred embodiments of this utility model and not all of them. Other embodiments obtained by those skilled in the art based on the embodiments described in the implementation plan without creative effort are all within the protection scope of this utility model.

[0021] The specific embodiments of this utility model are described below with reference to the accompanying drawings. Specific Implementation Example 1:

[0023] Reference Figure 1-4 A combined dual-coil inductor assembly includes an I-shaped ferrite core 1 and an E-shaped ferrite core 2. A flat-wire dual coil 3 is disposed between the I-shaped ferrite core 1 and the E-shaped ferrite core 2. The E-shaped ferrite core 2 is disposed on the surface of the I-shaped ferrite core 1. The shape and position of the flat-wire dual coil 3 are adapted to the I-shaped ferrite core 1 and the E-shaped ferrite core 2, respectively. The I-shaped ferrite core 1, as an important component of the inductor assembly, provides support and magnetic circuit for the flat-wire dual coil 3. It works together with the E-shaped ferrite core 2 to affect the electromagnetic performance of the inductor assembly. A mounting plate 4 is provided on its side for mounting the E-shaped ferrite core 2. The mounting block 5 of core 2 cooperates to connect and fix the two iron cores. The E-shaped ferrite core 2 and the I-shaped ferrite core 1 are set opposite each other and work together with the flat wire double coil 3 to enhance the inductance of the inductor component and optimize the electromagnetic performance. Compared with the traditional double wire parallel winding and same direction and same outlet through hole insertion technology, the flat wire double coil 3 has a smaller size and occupies less area, which reduces the cost of producing circuit boards. In electronic circuit design, the surface adhesive technology is used to make circuit design quick and convenient, reduce mutual interference during circuit operation, improve circuit operation performance, increase processing efficiency, and reduce impedance problems. It is the core component to realize the inductor function.

[0024] The side of the I-shaped ferrite core 1 is provided with a mounting plate 4, and the side of the E-shaped ferrite core 2 is provided with a mounting block 5. The shape of the mounting plate 4 matches the shape of the mounting block 5. The surface of the mounting plate 4 is provided with a moving groove 8, which provides movement space for the moving block 7 and the moving rod 9. During installation and disassembly, the moving block 7 is guided to move, making the connection and separation of the mounting block 5 and the mounting plate 4 smoother. The moving rod 9 is provided inside the moving groove 8, and the surface of the moving rod 9 is provided with a compression spring 10. The bottom surface of the mounting block 5 is provided with a moving block 7, the shape and position of which correspond to the moving groove 8. The moving block 7 is set on the top surface of the moving rod 9. During installation, it is squeezed by the moving block 7. When compressed, the compression spring 10 contracts, providing a buffer for the insertion of the movable block 7. During disassembly, under the elastic force of the compression spring 10, the movable block 7 is pushed out of the movable slot 8, realizing the separation of the mounting block 5 from the mounting plate 4. The bottom surface of the mounting block 5 is provided with a fixing plate 11, and the surface of the mounting block 5 is provided with a fixing slot 6. The shape and position of the fixing plate 11 correspond to the fixing slot 6. One side of the fixing plate 11 is provided with an inclined surface, and the end of the fixing rod 1404 is also provided with an inclined surface, so that when the mounting block 5 is installed downwards, the fixing plate 11 can squeeze the fixing rod 1404, thereby compressing the buffer spring 1401 and allowing the fixing plate 11 to be smoothly inserted into the fixing slot 6. The interior of the mounting plate 4 is provided with A movable groove 13 is provided for mounting the fixing component 14, providing space for its movement. The fixing component 14 is housed inside the movable groove 13. The fixing component 14 includes a buffer spring 1401, a connecting plate 1402, a guide rod 1403, a fixing rod 1404, and a movable rod 1405. The end of the buffer spring 1401 is provided with the connecting plate 1402. The guide rod 1403 is connected through the surface of the connecting plate 1402. The fixing rod 1404 is provided on the surface of the connecting plate 1402. The movable rod 1405 is provided on the side of the connecting plate 1402. The buffer spring 1401 provides a reaction force to push the connecting plate 1402, causing the fixing rod 1404 to insert into the fixing plate. 11. To fix the mounting block 5 and the mounting plate 4, the guide rod 1403 ensures the stability of the movement direction of the connecting plate 1402. The movable rod 1405 is used to push the connecting plate 1402 during disassembly, so that the fixed rod 1404 is separated from the fixed plate 11, thereby separating the mounting block 5 from the mounting plate 4. The mounting block 5 has a groove 12 on its side, which provides operating space for the movable rod 1405, making it convenient for the operator to apply force to push the movable rod 1405 during disassembly, so that the fixed rod 1404 is separated from the fixed plate 11, thereby separating the mounting block 5 from the mounting plate 4. The shape of the fixed plate 11 is adapted to the fixed rod 1404, and the end of the fixed rod 1404 is inserted into the surface of the fixed plate 11.

[0025] When installing this combined dual-coil inductor assembly, first prepare the I-shaped ferrite core 1 and the E-shaped ferrite core 2, and place the flat wire dual coil 3 between them, ensuring that its shape and position are compatible with the two cores. Next, align the movable block 7 on the bottom surface of the mounting block 5 with the movable slot 8 on the surface of the mounting plate 4 and insert it. The movable block 7 presses against the movable rod 9, causing the compression spring 10 to contract under force, allowing the movable block 7 to smoothly enter the movable slot 8. During the insertion process, due to the inclined surface design of the side of the fixing plate 11 and the end of the fixing rod 1404, the fixing plate 11 will compress when inserted into the fixing slot 6. The fixing rod 1404 compresses the buffer spring 1401, and then the fixing plate 11 is smoothly inserted into the fixing groove 6 on the surface of the mounting block 5. At the same time, the buffer spring 1401 pushes the connecting plate 1402, so that the fixing rod 1404 is inserted into the fixing plate 11, completing the quick installation. When disassembling, the operator applies force through the side groove 12 of the mounting block 5 to push the movable rod 1405. The movable rod 1405 drives the connecting plate 1402 to move, so that the fixing rod 1404 is disengaged from the fixing plate 11. At this time, under the reaction force of the compression spring 10, the movable block 7 pops out of the movable groove 8, realizing the convenient disassembly of the inductor assembly. Specific Implementation Example 2:

[0027] A combined dual-coil inductor assembly, based on the basic structure in Specific Embodiment 1, further discloses the following: In this combined dual-coil inductor assembly, the I-shaped ferrite core 1 and the E-shaped ferrite core 2 are closely integrated with the flat wire dual coil 3 to jointly realize the inductance function. When current flows into the flat wire dual coil 3, according to the law of electromagnetic induction, a magnetic field is generated around the coil. At this time, the I-shaped ferrite core 1 and the E-shaped ferrite core 2, with their high permeability characteristics, guide and concentrate the magnetic field, significantly enhancing the magnetic flux, thereby greatly increasing the inductance and meeting the specific inductance requirements of different circuits. From a circuit perspective, this assembly plays a key role in circuits such as power conversion. Taking a DC-DC converter as an example, when the current in the circuit changes, the inductor will impede the change in current. During the current increase phase, the inductor stores energy to suppress the rapid rise of current; when the current decreases, the inductor releases the stored energy to maintain current stability, thereby effectively smoothing current fluctuations and ensuring stable output of current and voltage in the circuit. The surface mount technology used in the flat wire dual coil 3 not only optimizes the component layout in terms of physical structure, reduces volume and area, and lowers cost, but also reduces electromagnetic interference between lines in terms of electrical performance, improving the overall operating performance of the circuit, so that the entire inductor component can work efficiently and stably in complex environments such as high-frequency circuits.

[0028] In summary:

[0029] 1. The circuit employs a flat wire double coil 3, a compression spring 10, and a fixing component 14. Compared to the traditional double-wire parallel winding and same-direction through-hole insertion technology, the flat wire double coil 3 results in a smaller component size and a reduced area, lowering the cost of circuit board production. Furthermore, surface mount technology is faster and more convenient in electronic circuit design, reduces mutual interference during circuit operation, significantly improves circuit performance, increases processing efficiency, and reduces impedance issues. Additionally, during installation, the moving block 7 is aligned with the moving slot 8 using the compression spring 10 and fixing component 14. When the movable block 7 is inserted, it presses against the movable rod 9, causing the compression spring 10 to contract under force. The movable block 7 smoothly enters the movable slot 8, and at the same time, the fixing plate 11 is inserted into the fixing slot 6. The buffer spring 1401 pushes the connecting plate 1402, causing the fixing rod 1404 to be inserted into the fixing plate 11, completing the quick installation. When disassembling, the movable rod 1405 is pushed, causing the fixing rod 1404 to disengage from the fixing plate 11. Under the reaction force of the compression spring 10, the movable block 7 pops out of the movable slot 8, realizing convenient disassembly. This greatly simplifies the installation and disassembly process of the inductor assembly and improves production efficiency.

[0030] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A combined dual-coil inductor assembly, comprising an I-shaped ferrite core (1) and an E-shaped ferrite core (2), characterized in that: A flat wire double coil (3) is provided between the I-shaped ferrite core (1) and the E-shaped ferrite core (2). The side of the I-shaped ferrite core (1) is provided with a mounting plate (4), and the side of the E-shaped ferrite core (2) is provided with a mounting block (5). The surface of the mounting plate (4) is provided with a moving groove (8), the inside of the moving groove (8) is provided with a moving rod (9), the surface of the moving rod (9) is provided with a compression spring (10), the bottom surface of the mounting block (5) is provided with a moving block (7), the bottom surface of the mounting block (5) is provided with a fixing plate (11), the inside of the mounting plate (4) is provided with a movable groove (13), and the inside of the movable groove (13) is provided with a fixing component (14).

2. The combined dual-coil inductor assembly according to claim 1, characterized in that: The fixing component (14) includes a buffer spring (1401), a connecting plate (1402), a guide rod (1403), a fixing rod (1404), and a movable rod (1405). The buffer spring (1401) has a connecting plate (1402) at its end. The guide rod (1403) is connected through the surface of the connecting plate (1402). The fixing rod (1404) is provided on the surface of the connecting plate (1402). The movable rod (1405) is provided on the side of the connecting plate (1402).

3. The combined dual-coil inductor assembly according to claim 1, characterized in that: The E-shaped ferrite core (2) is disposed on the surface of the I-shaped ferrite core (1), and the shape and position of the flat wire double coil (3) are adapted to the I-shaped ferrite core (1) and the E-shaped ferrite core (2) respectively.

4. The combined dual-coil inductor assembly according to claim 1, characterized in that: The shape of the mounting plate (4) is adapted to the shape of the mounting block (5), and the side of the mounting block (5) is provided with a groove (12).

5. A combined dual-coil inductor assembly according to claim 1, characterized in that: The shape and position of the movable block (7) correspond to the movable groove (8), and the movable block (7) is disposed on the top surface of the movable rod (9).

6. A combined dual-coil inductor assembly according to claim 1, characterized in that: The surface of the mounting block (5) is provided with a fixing groove (6), and the shape and position of the fixing plate (11) correspond to the fixing groove (6).

7. A combined dual-coil inductor assembly according to claim 2, characterized in that: The shape of the fixing plate (11) is adapted to the fixing rod (1404), and the end of the fixing rod (1404) is inserted into the surface of the fixing plate (11).