Inductor and electric device

By designing a special structure for the toroidal magnetic core and the wiring section, the problem of the large axial dimension of the inductor was solved, enabling a more compact arrangement and installation of the inductor in electrical equipment.

CN224318271UActive Publication Date: 2026-06-02SHENZHEN BUSBAR SCI TECH DEV

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHENZHEN BUSBAR SCI TECH DEV
Filing Date
2025-07-15
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

The axial dimension of the magnetic core of existing inductors is large, which occupies a lot of space and affects the installation and connection of inductors.

Method used

An inductor with a ring-shaped magnetic core and a ring-shaped body is designed. The wiring portion extends along the axial and radial directions of the magnetic core, reducing the length of the wiring portion in the axial direction of the magnetic core. The power supply is connected through an insulating tube and an external connector, simplifying the arrangement and installation of the inductor.

Benefits of technology

The overall axial dimension of the inductor is reduced, which reduces the space occupied in the electrical equipment and facilitates the arrangement and installation of the inductor.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of inductor, especially to a kind of inductor and electrical equipment, inductor includes magnetic core and coil, coil includes main part and two wiring parts, main part is around the outer periphery of magnetic core, main part has the first end and the second end spaced apart along its circumferential direction, one wiring part is connected to the first end of main part, the other wiring part is connected to the second end of main part, wiring part includes first section and second section, first section extends along the axial direction of magnetic core, second section extends along the radial direction of magnetic core, the first section of one wiring part is connected between its second section and the first end of main part, the first section of the other wiring part is connected between its second section and the second end of main part, the end of second end away from the end of first section is external terminal, the external terminal of one wiring part is used to connect the positive pole of power supply, and the external terminal of the other wiring part is used to connect the negative pole of power supply. Reduce the space occupied by inductor, facilitate arrangement and installation.
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Description

Technical Field

[0001] This utility model relates to the field of inductor technology, and in particular to an inductor and electrical equipment. Background Technology

[0002] An inductor is an electronic component that works on the principle of electromagnetic induction. Its core function is to impede changes in current and to store and release energy through a magnetic field.

[0003] An existing inductor includes a magnetic core, a frame, and a coil. The frame has a cylindrical structure with mounting holes inside. The magnetic core is inserted into the mounting holes, and the coil is wound on the outer circumference of the frame. The two ends of the coil are terminals. One terminal is connected to the positive terminal of the power supply, and the other terminal is connected to the negative terminal of the power supply to form the main circuit for energy conversion. By suppressing current harmonics and smoothing the current waveform, the power factor of the power system is improved, thereby reducing reactive power loss and grid interference.

[0004] However, existing inductors have a large axial dimension along the magnetic core, occupying a lot of space and affecting the installation and connection of the inductors. Summary of the Invention

[0005] This utility model provides an inductor and electrical equipment, aiming to solve the problem that existing inductors have a large axial dimension along the magnetic core, occupy a large space, and affect the installation of the inductor.

[0006] To solve the above problems, this utility model provides an inductor including a magnetic core and a coil. The magnetic core is ring-shaped, and the coil includes a main body and two connecting parts. The main body is wound around the outer periphery of the magnetic core. The main body has a first end and a second end that are spaced apart along its circumference. One of the connecting parts is connected to the first end of the main body, and the other connecting part is connected to the second end of the main body.

[0007] The wiring portion includes a first segment and a second segment. The first segment extends along the axial direction of the magnetic core, and the second segment extends along the radial direction of the magnetic core. The first segment of one wiring portion is connected between its second segment and the first end of the main body portion, and the first segment of the other wiring portion is connected between its second segment and the second end of the main body portion.

[0008] The end of the second terminal furthest from the first segment is an external terminal. One of the external terminals of the wiring section is used to connect to the positive terminal of the power supply, and the other external terminal of the wiring section is used to connect to the negative terminal of the power supply.

[0009] Optionally, the length of the second segment is greater than the length of the first segment.

[0010] Optionally, the first segment protrudes along the axial direction of the magnetic core from one end face of the main body.

[0011] Optionally, the inductor further includes a first insulating tube, which is sleeved on the first segment.

[0012] Optionally, the first insulating tube is a heat shrink tubing.

[0013] Optionally, the inductor further includes a second insulating tube, which is sleeved on the second segment.

[0014] Optionally, the inductor further includes an external connector, which is soldered to the external terminal for connecting to a power source.

[0015] Optionally, the external connector is plate-shaped and has a connection hole for connecting the external connector to the positive terminal of the power supply via a bolt.

[0016] Optionally, the coil has a circular cross-section.

[0017] According to the inductor provided in this embodiment of the present invention, the first section extends along the axial direction of the magnetic core and the second section extends along the radial direction of the magnetic core, thereby reducing the length of the wiring part along the axial direction of the magnetic core, and thus reducing the overall size of the inductor along the axial direction of the magnetic core, reducing the space occupied by the inductor in the electrical equipment, and facilitating its arrangement and installation.

[0018] This utility model embodiment also provides an electrical device, including a power supply, a positive terminal connector, a negative terminal connector, and the aforementioned inductor. The positive terminal connector is electrically connected to the positive terminal of the power supply, and the negative terminal connector is electrically connected to the negative terminal of the power supply. The external terminal of one of the wiring portions is electrically connected to the positive terminal connector, and the external terminal of the other wiring portion is electrically connected to the negative terminal connector. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the structure of an inductor provided in an embodiment of the present invention;

[0021] The following are the reference numerals in the instruction manual's accompanying drawings: 1. Magnetic core; 2. Coil; 3. Main body; 4. First end; 5. Second end; 6. Wiring part; 7. First section; 8. First insulating tube; 9. Second section; 10. Second insulating tube; 11. External component; 12. Connecting hole. Detailed Implementation

[0022] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0024] like Figure 1 As shown, an embodiment of the present invention provides an inductor, including a magnetic core 1 and a coil 2. The magnetic core 1 is ring-shaped, and the coil 2 includes a main body 3 and two connecting parts 6. The main body 3 is wound around the outer periphery of the magnetic core 1 and is ring-shaped. The main body 3 has a first end 4 and a second end 5 that are spaced apart along its circumference. One connecting part 6 is connected to the first end 4 of the main body 3, and the other connecting part 6 is connected to the second end 5 of the main body 3.

[0025] The wiring part 6 includes a first segment 7 and a second segment 9. The first segment 7 extends along the axial direction of the magnetic core 1, and the second segment 9 extends along the radial direction of the magnetic core 1. The first segment 7 of one wiring part 6 is connected between its second segment 9 and the first end 4 of the main body part 3, and the first segment 7 of the other wiring part 6 is connected between its second segment 9 and the second end 5 of the main body part 3.

[0026] The end of the second terminal 5 furthest from the first segment 7 is the external terminal. One of the external terminals of the wiring part 6 is used to connect to the positive terminal of the power supply, and the other external terminal of the wiring part 6 is used to connect to the negative terminal of the power supply.

[0027] In this embodiment, the first segment 7 extends along the axial direction of the magnetic core 1, and the second segment 9 extends along the radial direction of the magnetic core 1, thereby reducing the length of the wiring portion 6 in the axial direction of the magnetic core 1, and thus reducing the overall size of the inductor along the axial direction of the magnetic core 1, reducing the space occupied by the inductor in the electrical equipment, and facilitating its arrangement and installation.

[0028] In this embodiment, the two wiring portions 6 are extensions of the main body 3, and the two wiring portions 6 are integrally formed with the main body 3.

[0029] In this embodiment, coil 2 is enameled wire.

[0030] In this embodiment, the metal wire inside the coil 2 is relatively rigid, which can maintain the shape of the wiring portion 6.

[0031] In one embodiment, the length of the second segment 9 is greater than the length of the first segment 7.

[0032] In this embodiment, the length of the second segment 9 along the axial direction of the magnetic core 1 is greater than the length of the first segment 7 perpendicular to the axial direction of the magnetic core 1.

[0033] In one embodiment, the first segment 7 protrudes along the axial direction of the magnetic core 1 from one end face of the main body 3.

[0034] In this embodiment, the upper end of the first segment 7 is connected to the first end 4, and the lower end of the first segment 7 extends downward beyond the main body 3.

[0035] In this embodiment, the upper end of another first segment 7 is connected to the second end 5, and the lower end of the first segment 7 extends downward beyond the main body 3. This facilitates manufacturing.

[0036] In one embodiment, the inductor further includes a first insulating tube 8, which is sleeved on the first segment 7.

[0037] In this embodiment, the first insulating tube 8 can increase the insulation performance of the first segment 7.

[0038] In one embodiment, the first insulating tube 8 is a heat shrink tube.

[0039] In this embodiment, during installation, the first insulating tube 8 is first sleeved on the first segment 7, and then the first insulating tube 8 is heated so that the first insulating tube 8 covers the first segment 7.

[0040] In one embodiment, the inductor further includes a second insulating tube 10, which is sleeved on the second segment 9.

[0041] In this embodiment, the second insulating tube 10 can increase the insulation performance of the second segment 9.

[0042] In one embodiment, the second insulating tube 10 is a heat shrink tubing.

[0043] In this embodiment, during installation, the second insulating tube 10 is first fitted onto the second segment 9, and then the second insulating tube 10 is heated so that the second insulating tube 10 covers the first segment 7.

[0044] In one embodiment, the inductor further includes an external connector 11, which is soldered to an external terminal for connecting to a power source.

[0045] In this embodiment, the external connector 11 is welded and fixed to the external end of the second segment 9. The external connector 11 is plate-shaped and has a connection hole 12 for connecting the external connector 11 to the power supply bolt.

[0046] In one embodiment, the coil 2 has a circular cross-section.

[0047] In this embodiment, the cross-section of coil 2 is perpendicular to the axis of magnetic core 1, and the cross-section of coil 2 is circular, which facilitates design and manufacturing.

[0048] The technical features of the above embodiments can be combined in any way. For the sake of brevity, 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.

[0049] According to the inductor provided in this embodiment of the present invention, the first segment 7 extends along the axial direction of the magnetic core 1 and the second segment 9 extends along the radial direction of the magnetic core 1, thereby reducing the length of the wiring portion 6 in the axial direction of the magnetic core 1, and thus reducing the overall size of the inductor along the axial direction of the magnetic core 1, reducing the space occupied by the inductor in the electrical equipment, and facilitating its arrangement and installation.

[0050] In addition, one embodiment of the present invention provides an electrical device, including a power supply, a positive terminal connector, a negative terminal connector, and the aforementioned inductor. The positive terminal connector is electrically connected to the positive terminal of the power supply, and the negative terminal connector is electrically connected to the negative terminal of the power supply. One of the external terminals of the wiring portion 6 is electrically connected to the positive terminal connector, and the other external terminal of the wiring portion 6 is electrically connected to the negative terminal connector.

[0051] In this embodiment, both the positive and negative terminals are electrically connected to the power supply via cables. Both the positive and negative terminals are plate-shaped and have mounting holes. On the two wiring portions 6, one external component 11 is bolted to the positive terminal and the other external component 11 is bolted to the negative terminal, facilitating disassembly.

[0052] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model, and should all be included within the protection scope of this utility model.

Claims

1. An inductor, characterized in that, The device includes a magnetic core (1) and a coil (2). The magnetic core (1) is ring-shaped. The coil (2) includes a main body (3) and two connecting parts (6). The main body (3) is wound around the outer periphery of the magnetic core (1). The main body (3) is ring-shaped and has a first end (4) and a second end (5) spaced apart along its circumference. One of the connecting parts (6) is connected to the first end (4) of the main body (3), and the other connecting part (6) is connected to the second end (5) of the main body (3). The wiring portion (6) includes a first segment (7) and a second segment (9). The first segment (7) extends along the axial direction of the magnetic core (1), and the second segment (9) extends along the radial direction of the magnetic core (1). The first segment (7) of one wiring portion (6) is connected between its second segment (9) and the first end (4) of the main body portion (3), and the first segment (7) of the other wiring portion (6) is connected between its second segment (9) and the second end (5) of the main body portion (3). The end of the second end (5) away from the first segment (7) is an external terminal. One of the external terminals of the wiring part (6) is used to connect to the positive terminal of the power supply, and the other external terminal of the wiring part (6) is used to connect to the negative terminal of the power supply.

2. The inductor according to claim 1, characterized in that, The length of the second segment (9) is greater than the length of the first segment (7).

3. The inductor according to claim 1, characterized in that, The first segment (7) protrudes along the axial direction of the magnetic core (1) from one end face of the main body (3).

4. The inductor according to claim 1, characterized in that, The inductor also includes a first insulating tube (8), which is sleeved on the first segment (7).

5. The inductor according to claim 4, characterized in that, The first insulating tube (8) is a heat shrink tube.

6. The inductor according to claim 1, characterized in that, The inductor also includes a second insulating tube (10), which is sleeved on the second segment (9).

7. The inductor according to claim 1, characterized in that, The inductor also includes an external connector (11), which is welded to the external terminal for connecting to a power source.

8. The inductor according to claim 7, characterized in that, The external connector (11) is plate-shaped and has a connection hole (12) for connecting the external connector (11) to the positive terminal of the power supply.

9. The inductor according to claim 1, characterized in that, The coil (2) has a circular cross-section.

10. An electrical appliance, characterized in that, Includes a power supply, a positive terminal connector, a negative terminal connector, and an inductor as described in any one of claims 1 to 9, wherein the positive terminal connector is electrically connected to the positive terminal of the power supply, the negative terminal connector is electrically connected to the negative terminal of the power supply, and the external terminal of one of the wiring portions (6) is electrically connected to the positive terminal connector, and the external terminal of the other wiring portion (6) is electrically connected to the negative terminal connector.