Novel three-phase inductor structure

Abstract

The utility model discloses a novel three-phase inductor structure, which relates to the technical field of three-phase inductors and comprises a magnetic ring, three groups of coils are wound on the magnetic ring, and two connecting pins are led out from each group of coils; the magnetic ring is of a triangular structure, three sections of linear paths are formed on the magnetic ring of the triangular structure, the three sets of coils are wound on the three sections of linear paths respectively, and the magnetic ring of the triangular structure serves as a carrier for winding the three sets of coils, so that the magnetic ring is provided with three sections of separated linear paths. The coil is wound more conveniently and quickly by utilizing a linear path, the production efficiency is improved, the consistency of the coil during winding is improved, the problem that the coil is inconvenient to wind in a traditional scheme is solved, and the quality of a three-phase inductor is ensured; and meanwhile, in automatic production, the linear path of the magnetic ring is utilized, so that the winding of the coil is more suitable for automatic coil vertical winding, the requirement of manual intervention is reduced, and the production efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of three-phase inductance, in particular to a novel three-phase inductance structure. Background Art

[0002] Three-phase inductors are commonly used in power electronics, primarily in three-phase AC power systems. They smooth current flow and reduce current fluctuations by storing magnetic field energy, and they also act as a filter to suppress electromagnetic interference (EMI). Three-phase inductors typically consist of three independent but interconnected inductor units, one for each phase, to efficiently process three-phase AC power.

[0003] At present, the structure of the three-phase inductor is as shown in the Chinese utility model "A split three-phase common-mode inductor" with the announcement number CN220984311U, which includes the split three-phase common-mode inductor including an inductor body and a base, the inductor body is connected to the base, the inductor body includes a magnetic core, a magnetic core protective shell wrapping the magnetic core, and an isolation bracket, the magnetic core protective shell is provided with a first through hole, the base is provided with a first limiting portion, the first limiting portion is provided with a limiting slot, the isolation bracket is provided with a second limiting portion, the isolation bracket is inserted into the magnetic core protective shell through the first through hole and is clamped with the first limiting portion, and the second limiting portion is placed in the limiting slot.

[0004] The above-mentioned patent uses a toroidal magnetic core to wind three sets of independent coils. Although this design has a certain degree of stability, there are some challenges in actual operation. For example, due to the geometric shape of the toroidal magnetic core, precise manual operation is often required when winding the three sets of coils, resulting in low production efficiency. This not only increases manufacturing costs, but also makes it difficult to ensure the consistency of the coils during winding.

[0005] Therefore, it is necessary to propose a new technical solution to solve the above problems. Utility Model Content

[0006] In order to overcome the above-mentioned shortcomings, the present invention aims to provide a technical solution that can solve the inconvenience of coil winding caused by the existing structure.

[0007] To achieve the above object, the present invention provides the following technical solutions: a novel three-phase inductor structure, comprising a magnetic ring, three groups of coils wound on the magnetic ring, each group of coils having two connecting pins;

[0008] The magnetic ring is arranged in a triangular structure, three straight paths are formed on the triangular magnetic ring, and the three groups of coils are respectively wound on the three straight paths.

[0009] As a further solution of the present invention: a casing is provided at each triangular portion of the magnetic ring, an inner plate is provided at one end of the casing facing the inner side of the magnetic ring, a Y-shaped partition is provided on the inner side of the magnetic ring, and the three ends of the Y-shaped partition are respectively connected to the inner plates of the three casings, dividing the inner space of the magnetic ring into three parts.

[0010] As a further solution of the present invention: the coil is wound in a single-layer vertical winding manner using a winding wire with a flat structure.

[0011] As a further solution of the present invention: the connecting leg outer shell is provided with an insulating outer shell.

[0012] As a further solution of the present invention: two sleeve rods are respectively provided at both ends of the sleeve, and the sleeve is sleeved on the corners of the magnetic ring through the two sleeve rods at both ends;

[0013] The sleeve rods are elastic sleeve rods with elastic bending characteristics. A clamping block is formed on one side of the lower end of the two sleeve rods. When the sleeve rods are sleeved, the clamping block abuts and cooperates with the bottom side of the magnetic ring.

[0014] As a further solution of the present invention: the lower end of the clamping block has a guiding inclined surface facing one side of the magnetic ring.

[0015] Compared with the existing technology, the beneficial effects of this technical solution are:

[0016] 1. By using a triangular magnetic ring as the carrier for winding three sets of coils, the magnetic ring forms three separated straight paths. The straight paths make coil winding more convenient and faster, improve production efficiency, enhance the consistency of coils during winding, solve the problem of coil winding inconvenience in traditional solutions, and ensure the quality of three-phase inductance;

[0017] At the same time, in automated production, the linear path of the magnetic ring is used to make the coil winding more suitable for automated vertical coil winding, reducing the need for manual intervention and greatly improving production efficiency.

[0018] 2. After the coil and magnetic ring are manufactured, three shells are put on the three corners of the magnetic ring so that the Y-shaped partition between the three shells divides the inner space of the magnetic ring into three independent spaces, thereby forming a partition between the three groups of coils, reducing the magnetic flux interference between the three groups of coils, and ensuring electrical isolation between the three phases;

[0019] At the same time, when the shell is put on the edge of the magnetic ring, the magnetic ring pushes the clamping block to make the two elastic sleeve rods with elastic bending characteristics expand outward toward the side away from the magnetic ring, and when the clamping block moves down to the bottom side of the shell, the sleeve rods elastically recover, so that the top side of the clamping block abuts against the bottom side of the magnetic ring to limit the sleeve rod and the shell from falling out upward, and fix the Y-shaped partition between the shells on the inner side of the magnetic ring.

[0020] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0022] Figure 1 It is a structural diagram of the utility model;

[0023] Figure 2 This is a schematic diagram of the structure of the utility model when viewed from above;

[0024] Figure 3 It is a schematic diagram of the explosion structure of the utility model;

[0025] Figure 4 yes Figure 2 A magnified schematic diagram of the local structure at center A;

[0026] The corresponding reference numerals in the accompanying drawings are described as follows:

[0027] 1. Magnetic ring; 11. Straight path; 2. Coil; 21. Connecting pin; 3. Insulating jacket; 4. Housing; 41. Inner plate; 42. Rod; 43. Block; 44. Guide ramp; 5. Y-type partition. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0029] See also Figure 1-4 A novel three-phase inductor structure includes a magnetic ring 1 with three sets of coils 2 wound around it. Each set of coils 2 has two connecting pins 21. When mounting the three-phase inductor, the connecting pins 21 of the coils 2 are connected to the corresponding sockets on the circuit board, and then the connecting pins 21 are soldered to complete the mounting of the three-phase inductor.

[0030] The magnetic ring 1 is arranged in a triangular structure. Three straight paths 11 are formed on the triangular magnetic ring 1 , and the three groups of coils 2 are respectively wound on the three straight paths 11 .

[0031] Specifically, the present invention uses a triangular-shaped magnetic ring 1 as a carrier for winding three groups of coils 2, so that the magnetic ring 1 forms three separated straight paths 11. The straight paths 11 make winding the coils 2 more convenient and faster, improve production efficiency, and enhance the consistency of the coils 2 during winding. This solves the problem of inconvenient winding of the coils 2 in traditional solutions and ensures the quality of the three-phase inductance.

[0032] At the same time, in automated production, the linear path 11 of the magnetic ring 1 is utilized to make the winding of the coil 2 more suitable for automated vertical coil winding, thereby reducing the need for manual intervention and greatly improving production efficiency.

[0033] Preferably, the coil 2 is wound in a single-layer vertical winding manner using a flat winding wire, wherein the winding wire is copper wire.

[0034] Specifically, in the present invention, the winding wire with a flat structure has a larger surface area, so that the heat dissipation performance of the coil 2 is better, thereby reducing the temperature rise of the three-phase inductor and extending its service life.

[0035] Preferably, the connecting pin 21 is covered with an insulating jacket 3 , which can be made of epoxy resin.

[0036] Specifically, the insulating jacket 3 can provide insulation protection for the connecting pin 21 and provide mechanical protection for the connecting pin 21 to prevent the connecting pin 21 from bending.

[0037] In some embodiments, a casing 4 is provided at each triangular portion of the magnetic ring 1, an inner plate 41 is provided at one end of the casing 4 facing the inner side of the magnetic ring 1, a Y-shaped partition 5 is provided inside the magnetic ring 1, and the three ends of the Y-shaped partition 5 are respectively connected to the inner plates 41 of the three casings 4, dividing the inner space of the magnetic ring 1 into three parts;

[0038] Two sleeve rods 42 are respectively provided at both ends of the sleeve 4, and the sleeve 4 is sleeved on the corners of the magnetic ring 1 through the two sleeve rods 42 at both ends;

[0039] The sleeve rod 42 is an elastic sleeve rod 42 with elastic bending characteristics. A clamping block 43 is formed on the opposite side of the lower end of the two sleeve rods 42. When sleeved, the clamping block 43 abuts against the bottom side of the magnetic ring 1. The lower end of the clamping block 43 has a guiding inclined surface 44 facing the side of the magnetic ring 1.

[0040] Specifically, after the coils 2 and the magnetic ring 1 are wound, three housings 4 are placed on the three corners of the magnetic ring 1, so that the Y-shaped partitions 5 between the three housings 4 divide the inner space of the magnetic ring 1 into three independent spaces, thereby forming partitions between the three groups of coils 2, reducing magnetic flux interference between the three groups of coils 2, and ensuring electrical isolation between the three phases;

[0041] When the housing 4 is put on the corner of the magnetic ring 1, the guiding inclined surface 44 of the block 43 abuts against the top side of the magnetic ring 1, and in the process of continuous downward movement, the magnetic ring 1 pushes the block 43 to make the sleeve rod 42 elastically bend, so that the two sleeve rods 42 expand outward toward the side away from the magnetic ring 1, so that the block 43 can move down to the bottom side of the housing 4, and when the block 43 moves down to the bottom side of the housing 4, the sleeve rod 42 elastically recovers, so that the top side of the block 43 abuts against the bottom side of the magnetic ring 1, so as to limit the sleeve rod 42 and the housing 4 from falling out upward, so that the Y-shaped partition 5 between the housings 4 is stably located inside the magnetic ring 1.

[0042] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A new three-phase inductor structure, characterized in that: It comprises a magnetic ring (1), three groups of coils (2) are wound around the magnetic ring (1), and each group of coils (2) has two connecting pins (21); The magnetic ring (1) is arranged in a triangular structure, three straight paths (11) are formed on the triangular magnetic ring (1), and the three groups of coils (2) are respectively wound on the three straight paths (11).

2. The novel three-phase inductor structure according to claim 1 is characterized in that: The triangular parts of the magnetic ring (1) are all provided with a casing (4), and an inner plate (41) is provided at one end of the casing (4) facing the inner side of the magnetic ring (1). A Y-shaped partition (5) is provided inside the magnetic ring (1), and the three ends of the Y-shaped partition (5) are respectively connected to the inner plates (41) of the three casings (4), thereby dividing the inner space of the magnetic ring (1) into three parts.

3. The novel three-phase inductor structure according to claim 1 is characterized in that: The coil (2) is wound in a single-layer vertical winding manner using a winding wire with a flat structure.

4. The novel three-phase inductor structure according to claim 1 is characterized in that: The outer cover of the connecting foot (21) is provided with an insulating outer cover (3).

5. The novel three-phase inductor structure according to claim 2 is characterized in that: Two sleeve rods (42) are respectively provided at both ends of the sleeve shell (4), and the sleeve shell (4) is sleeved on the corners of the magnetic ring (1) through the two sleeve rods (42) at both ends; The sleeve rods (42) are elastic sleeve rods (42) with elastic bending characteristics. A clamping block (43) is formed on one side of the lower ends of the two sleeve rods (42) opposite to each other. When sleeved, the clamping block (43) abuts against the bottom side of the magnetic ring (1).

6. The novel three-phase inductor structure according to claim 5, characterized in that: The lower end of the clamping block (43) has a guiding inclined surface (44) facing one side of the magnetic ring (1).

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