A compact multi-electrode inductor

Abstract

This utility model discloses a compact multi-electrode inductor, relating to the field of multi-electrode inductor technology. It includes an inductor core with stranded wire wound around its outer wall. The stranded wire is a bundle of several insulated flat wires twisted together. Two end electrode platforms are respectively provided at both ends of the inductor core, and U-shaped slots are formed on the upper ends of the two end electrode platforms corresponding to the multiple insulated flat wires. Electrode pressure plates are fixedly connected to the upper sides of both ends of the end electrode platforms, and electrode terminals are fixedly connected to the electrode pressure plates corresponding to the multiple U-shaped slots. By using the inductor core and the stranded wire wound around its outer wall (the stranded wire being a bundle of several insulated flat wires twisted together), the gaps between wires are significantly reduced or even eliminated. Multiple electrodes are added without changing the volume, meeting the market requirements for miniaturization and precision, effectively improving the volume utilization rate of inductor components, and reducing the overall volume.

Description

Technical Field

[0001] This utility model relates to the field of multi-electrode inductor technology, and specifically to a compact multi-electrode inductor. Background Technology

[0002] With the development of technology and the progress of society, various electronic devices are moving towards miniaturization and higher efficiency, which places higher demands on inductor components. To meet these needs, multi-electrode inductors have emerged in existing technologies.

[0003] Existing multi-electrode inductors consist of multiple electrodes and corresponding coil windings. After the circular wires are twisted together, gaps (triangular / trapezoidal) exist between the wires, resulting in low overall volume utilization and limiting the number of conductors (electrodes) that can be accommodated within a single volume. This leads to a relatively large overall size, a characteristic that makes them particularly problematic in applications where modern electronic devices increasingly demand refined design and compact layouts. Whether in portable devices, embedded systems, or other fields requiring efficient space utilization, these large inductors struggle to meet the growing demands for refinement and efficient space utilization, limiting their widespread adoption and promotion in high-end applications. Therefore, we propose a compact multi-electrode inductor. Utility Model Content

[0004] The purpose of this invention is to address the problem that existing multi-electrode inductors, which consist of multiple electrodes and corresponding coil windings, have gaps (triangular / trapezoidal) between the stranded wires, resulting in low overall volume utilization and limiting the number of conductors (electrodes) that can be accommodated within a single volume. This leads to a relatively large overall size, a characteristic that makes them particularly problematic in applications where electronic devices increasingly demand refined design and compact layouts. Whether in portable devices, embedded systems, or other fields requiring efficient space utilization, such large-volume inductors struggle to meet the growing demands for refinement and efficient space utilization, hindering their widespread adoption and promotion in high-end applications. This invention provides a compact multi-electrode inductor.

[0005] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0006] A compact multi-electrode inductor includes an inductor core. The outer wall of the inductor core is wound with stranded wire, which is a stranded bundle formed by twisting several insulated flat wires. Two end electrode platforms are respectively provided at both ends of the inductor core, and U-shaped slots are opened at the upper ends of the two end electrode platforms corresponding to the multiple insulated flat wires. Electrode pressure plates are fixedly connected to the upper sides of both ends of the end electrode platforms, and electrode terminals are fixedly connected to the electrode pressure plates corresponding to the multiple U-shaped slots. After the insulation layer of the multiple insulated flat wires of the stranded winding is removed, they are inserted into the U-shaped slots one by one, and the electrode terminals are fixedly connected to the ends of the insulated flat wires in the U-shaped slots.

[0007] Furthermore, the number of insulated flat wires twisted together in the stranded winding includes, but is not limited to, two, three, four, five, and six wires.

[0008] Furthermore, a polyimide insulating film is placed between the insulated flat wires within the stranded winding.

[0009] Furthermore, the outer wall of the inductor core is uniformly provided with multiple turns of insulating slots corresponding to the stranded winding.

[0010] Furthermore, an isolation groove is provided between adjacent U-shaped slots, and an isolation plate is inserted and fixed in the isolation groove. The isolation plate is a copper-coated electromagnetic shielding aluminum sheet.

[0011] Furthermore, a voltage contact piece is fixedly connected to the inward end of the electrode terminal, and the voltage contact piece is embedded in the bottom of the electrode pressure plate. The voltage contact piece is in close contact with the exposed end of the insulated flat wire. Multiple snap-fit ​​triangular protrusions are evenly distributed at intervals on the bottom of the voltage contact piece and the inner wall of the U-shaped slot, and the upper and lower sets of snap-fit ​​triangular protrusions are staggered.

[0012] Furthermore, a ceramic substrate is fixedly connected to the bottom of the end electrode platforms on both sides.

[0013] The beneficial effects of this utility model are as follows:

[0014] 1. This utility model, through the design of an inductor core and the stranded winding wound around its outer wall, significantly reduces or even eliminates the gaps between the wires by using a stranded wire bundle formed by several insulated flat wires twisted together. This increases the number of electrodes while maintaining the same volume, meeting the market demands for miniaturization and precision. It effectively improves the volume utilization rate of inductor components, reduces the overall size, and makes them more suitable for the increasingly sophisticated design and compact layout of current electronic devices. The two end electrode platforms, along with the U-shaped slots, allow the insulation layers to be removed from the ends of the multiple insulated flat wires of the stranded winding. The U-shaped slot secures the connection between the two ends of the stranded wire and the end electrode platform, improving the ease of assembly. This avoids the complexities and potential damage to the inductor coil caused by soldering the ends to the electrode plate, a common practice in traditional inductors. The electrode pressure plate, with its ultrasonically welded electrode terminals, aligns perfectly with the insulated flat wire ends within the U-shaped slot, allowing for easy connection to an external power source and enhancing usability.

[0015] 2. In this utility model, an isolation plate with a copper-clad electromagnetic shielding aluminum sheet is inserted and fixed in the isolation groove opened between adjacent U-shaped slots, which effectively shields electromagnetic interference and improves the anti-interference ability of the inductor.

[0016] 3. The voltage contact piece, with its electrode terminals fixedly connected to the inward end, makes tight contact with the exposed end of the insulated flat wire, ensuring a good electrical connection. Multiple locking triangular protrusions are evenly spaced on the bottom of the voltage contact piece and the inner wall of the U-shaped slot, with the upper and lower sets of locking triangular protrusions staggered. This structural design enhances the connection stability between the voltage contact piece, the U-shaped slot, and the insulated flat wire, improving the structural strength of the inductor. Attached Figure Description

[0017] Figure 1 This is a perspective view of the present invention;

[0018] Figure 2 This is a partial front sectional view of the U-shaped slot of this utility model;

[0019] Figure 3 This is a side sectional view of the end of this utility model.

[0020] Reference numerals in the attached figures: 1. Inductor core; 2. Stranded winding; 3. End electrode platform; 4. U-shaped slot; 5. Electrode pressure plate; 6. Electrode terminal; 7. Voltage connector; 8. Snap-fit ​​triangular tooth; 9. Ceramic substrate; 10. Isolation plate. Detailed Implementation

[0021] 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.

[0022] Please see Figures 1-3 This utility model provides a compact multi-electrode inductor, including an inductor core 1. The outer wall of the inductor core 1 is wound with stranded wire 2, and the stranded wire 2 is a stranded bundle formed by twisting several insulated flat wires. Two end electrode platforms 3 are respectively provided at both ends of the inductor core 1, and U-shaped slots 4 are opened at the upper ends of the two end electrode platforms 3 corresponding to the multiple insulated flat wires. Electrode pressure plates 5 are fixedly connected to the upper sides of both ends of the end electrode platforms 3, and electrode terminals 6 are fixedly connected to the electrode pressure plates 5 corresponding to the multiple U-shaped slots 4. After removing the insulation layer, the ends of the multiple insulated flat wires of the stranded wire 2 are inserted into the U-shaped slots 4 one by one, and the electrode terminals 6 are fixedly corresponding to the ends of the insulated flat wires in the U-shaped slots 4.

[0023] The working principle and usage process of this utility model are as follows: In use, the inductor core 1, along with the stranded winding 2 wound around its outer wall, significantly reduces or even eliminates gaps between wires. This increases the number of electrodes while maintaining the same volume, meeting the market demands for miniaturization and precision. It effectively improves the volume utilization rate of the inductor components, reduces the overall size, and makes it more suitable for the increasingly sophisticated design and compact layout of current electronic devices. The two end electrode platforms 3, along with the U-shaped slots 4, connect the two ends of the multiple insulated flat wires of the stranded winding 2. After removing the insulation layer, the wire is inserted into the U-shaped slot 4, making the connection between the two ends of the stranded winding 2 and the end electrode platform 3 more secure. This also improves the ease of assembly of the inductor, avoiding the need for welding the two ends of the traditional inductor coil to the electrode plate, which is not only complicated to operate but also prone to damaging the inductor coil during welding, affecting its normal use. Through the set electrode pressure plate 5, and the electrode terminals 6 ultrasonically welded and fixed on the electrode pressure plate 5, the electrode terminals 6 are correspondingly fixed to the ends of the insulated flat wire in the U-shaped slot 4, making it easy for the inductor to be connected to an external power source through the electrode terminals 6 during use, thus improving the convenience of the inductor during use.

[0024] In this embodiment, preferably, the number of insulated flat wires twisted in the twisted winding 2 includes, but is not limited to, two, three, four, five, and six wires; the twisted winding 2 formed by twisting various numbers of insulated flat wires can be flexibly selected according to actual needs, further improving the practicality and applicability of this utility model.

[0025] In this embodiment, preferably, a polyimide insulating film is placed between the insulating flat wires in the stranded winding 2; the polyimide insulating film placed between the insulating flat wires in the stranded winding 2 effectively enhances the insulation performance and ensures the safety of the inductor during use.

[0026] In this embodiment, preferably, multiple insulating grooves are evenly formed on the outer wall of the inductor core 1 corresponding to the stranded winding 2. The evenly formed insulating grooves on the outer wall of the inductor core 1 corresponding to the stranded winding 2 further improve the insulation effect and heat dissipation performance of the inductor, which is beneficial to the long-term stable operation of the inductor.

[0027] In this embodiment, preferably, an isolation groove is provided between adjacent U-shaped slots 4, and an isolation plate 10 is inserted and fixed in the isolation groove. The isolation plate 10 is a copper-plated electromagnetic shielding aluminum sheet. The isolation plate 10 with a copper-plated electromagnetic shielding aluminum sheet is inserted and fixed in the isolation groove between adjacent U-shaped slots 4, which effectively shields electromagnetic interference and improves the anti-interference ability of the inductor.

[0028] In this embodiment, preferably, a voltage contact piece 7 is fixedly connected to the inward end of the electrode terminal 6, and the voltage contact piece 7 is embedded in the bottom of the electrode pressure plate 5. The voltage contact piece 7 is in close contact with the exposed end of the insulated flat wire. Multiple locking triangular protrusions 8 are evenly spaced on the bottom of the voltage contact piece 7 and the inner wall of the U-shaped slot 4, with the upper and lower sets of locking triangular protrusions 8 staggered. The voltage contact piece 7, fixedly connected to the inward end of the electrode terminal 6, is in close contact with the exposed end of the insulated flat wire, ensuring a good electrical connection. The multiple locking triangular protrusions 8 evenly spaced on the bottom of the voltage contact piece 7 and the inner wall of the U-shaped slot 4, with the upper and lower sets of locking triangular protrusions 8 staggered, enhance the connection stability between the voltage contact piece 7, the U-shaped slot 4, and the insulated flat wire, improving the structural strength of the inductor.

[0029] In this embodiment, preferably, a ceramic substrate 9 is fixedly connected to the bottom of the end electrode platforms 3 on both sides; the ceramic substrate 9 fixedly connected to the bottom of the end electrode platforms 3 on both sides has good heat resistance and insulation, which further improves the performance and safety of the inductor.

[0030] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A compact multi-electrode inductor, characterized by: The inductor core (1) has a stranded wire (2) wound around its outer wall. The stranded wire (2) is a stranded bundle formed by stranding several insulated flat wires. Two end electrode platforms (3) are provided at both ends of the inductor core (1). U-shaped slots (4) are opened at the upper ends of the two end electrode platforms (3) corresponding to multiple insulated flat wires. Electrode pressure plates (5) are fixedly connected to the upper sides of both ends of the end electrode platforms (3). Electrode terminals (6) are fixedly connected to the electrode pressure plates (5) corresponding to multiple U-shaped slots (4). After removing the insulation layer, the ends of the multiple insulated flat wires of the stranded wire (2) are inserted into the U-shaped slots (4) one by one. The electrode terminals (6) are fixedly connected to the ends of the insulated flat wires in the U-shaped slots (4).

2. The compact multi-electrode inductor according to claim 1, characterized in that: The number of insulated flat wires twisted in the stranded winding (2) includes, but is not limited to, two, three, four, five, and six wires.

3. A compact multi-electrode inductor according to claim 2, characterized in that: A polyimide insulating film is placed between the insulated flat wires in the stranded winding (2).

4. A compact multi-electrode inductor according to claim 1, characterized in that: The outer wall of the inductor core (1) has multiple insulating grooves evenly formed on the stranded winding (2).

5. A compact multi-electrode inductor according to claim 1, characterized in that: An isolation groove is provided between adjacent U-shaped slots (4), and an isolation plate (10) is inserted and fixed in the isolation groove. The isolation plate (10) is a copper-coated electromagnetic shielding aluminum sheet.

6. A compact multi-electrode inductor according to claim 1, characterized in that: The electrode terminal (6) is fixedly connected to a voltage contact piece (7) at one end facing inward, and the voltage contact piece (7) is fitted into the bottom of the electrode pressure plate (5). The voltage contact piece (7) is in close contact with the exposed end of the insulated flat wire. The bottom of the voltage contact piece (7) and the inner wall of the U-shaped slot (4) are equally spaced with multiple snap-fit ​​triangular protrusions (8), and the upper and lower sets of snap-fit ​​triangular protrusions (8) are staggered.

7. A compact multi-electrode inductor according to claim 1, characterized in that: A ceramic substrate (9) is fixedly connected to the bottom of the end electrode platforms (3) on both sides.

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