CN219610182U

CN219610182U - Three-phase shell type air-core reactor

Info

Publication number: CN219610182U
Application number: CN202320952309.5U
Authority: CN
Inventors: 肖任泉
Original assignee: Leader Electronics Inc
Current assignee: Leader Electronics Inc
Priority date: 2023-04-25
Filing date: 2023-04-25
Publication date: 2023-08-29
Anticipated expiration: 2033-04-25

Abstract

The utility model discloses a three-phase shell type air-core reactor, which relates to the technical field of reactors and comprises an iron core assembly, a coil assembly and a mounting assembly; the iron core assembly comprises iron yokes, longitudinal iron core columns and transverse iron core columns, wherein two longitudinal iron core columns are arranged and are correspondingly arranged left and right, the upper ends and the lower ends of the two longitudinal iron core columns are respectively connected through the two iron yokes, and two transverse iron core columns are arranged between the two longitudinal iron core columns; the coil component is arranged between the gaps of the 'mu' -shaped structure; the installation component includes iron core support and external connection group, and the iron core support is installed respectively to the front and back side of every vertical iron core post, installs external connection group between two iron core support tops of front side. According to the three-phase shell type air core reactor, the coil is not wound with the iron core, the iron core with the shell type structure at the periphery of the coil belongs to the iron core reactor in the common sense, and therefore the three-phase shell type air core reactor has the advantages of both the air core reactor and the iron core reactor.

Description

Three-phase shell type air-core reactor

Technical Field

The utility model relates to the technical field of reactors, in particular to a three-phase shell type air-core reactor.

Background

The structure of a common three-phase iron core reactor on the market is shown as a coil A in fig. 4, a coil B and a coil C are nested into a three-phase iron core column to form the three-phase reactor, the iron core column is divided into a plurality of sections of iron core cakes 51 for reducing noise and loss, a plurality of sections of air gaps 50 are additionally arranged between the iron core cakes to form the three-phase iron core reactor, and an iron core cake bracket 52 is externally arranged to change the magnetic permeability to control the inductance of the reactor.

Disclosure of Invention

The utility model aims to overcome the existing defects, provides the three-phase shell type air-core reactor, skillfully utilizes an air gap between heart columns as a part of an inductance magnetic circuit, achieves the aim of adjusting inductance, is more compact in structure, adopts a continuous winding method, namely a positive segment and a negative segment to wind into a cake-shaped structure, has no interlayer and external insulation, is exposed in the air, is more beneficial to heat dissipation of a lead, has small additional loss caused by leakage magnetic flux, is not easy to generate noise after long-term operation, and can effectively solve the problems in the background art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a three-phase shell type air-core reactor comprises an iron core assembly, a coil assembly and a mounting assembly;

the iron core assembly comprises two iron yokes, longitudinal iron core columns and transverse iron core columns, wherein the two longitudinal iron core columns are arranged in a left-right corresponding mode, the upper ends and the lower ends of the two longitudinal iron core columns are respectively connected through the two iron yokes, two transverse iron core columns are arranged between the two longitudinal iron core columns, and the iron yokes, the longitudinal iron core columns and the transverse iron core columns are combined to form a 'mesh' -shaped structure;

the coil component is arranged between the gaps of the 'mu' -shaped structure;

the installation component includes iron core support and external connection group, and the iron core support is installed respectively to the front and back side of every vertical iron core post, installs external connection group between two iron core support tops of front side.

The air gap between the core columns is used as a part of the inductance magnetic circuit, so that the purpose of adjusting inductance is achieved, and the structure is more compact.

Further, the coil assembly comprises a coil A, a coil B and a coil C, wherein the coil A, the coil B and the coil C are sequentially installed among three gaps of the 'mu' -shaped structure from top to bottom, the coil A is arranged at the top, the coil B is arranged in the middle, and the coil C is arranged at the bottom.

Furthermore, the coil A, the coil B and the coil C are all wound into a cake-shaped structure by adopting a continuous winding method, namely a positive section and a negative section, no interlayer or external insulation is adopted, bare leakage is realized in the air, heat dissipation of a wire is facilitated, the additional loss generated by leakage magnetic flux is small, and noise is not easy to generate after long-term operation.

Furthermore, the coil assembly further comprises insulating plates, the upper sides of the coil A, the coil B and the coil C are respectively provided with an insulating plate, and the insulating plates distributed up and down enable the coil A, the coil B and the coil C to isolate the iron core, so that insulation is ensured.

Further, the external wiring group comprises a wiring terminal insulating plate, the wiring terminal insulating plate is arranged between the tops of the two iron core brackets, and two ends of the wiring terminal insulating plate are fixedly connected with the corresponding tops of the front sides of the iron core brackets through screws respectively. The terminal insulating plate is used for installing the wiring component.

Further, the external wiring group further comprises wiring posts and wiring terminals, six wiring posts are fixedly connected to the front side of the wiring post insulating plate at equal intervals, the wiring terminals are connected to each wiring post respectively, and the wiring posts and the wiring terminals are used for wiring.

Compared with the prior art, the utility model has the beneficial effects that: this three-phase shell type air-core reactor has following benefit:

1. the air gap between the heart posts is skillfully utilized as a part of the inductance magnetic circuit, the purpose of adjusting the inductance is achieved, and the structure is more compact;

2. the coil is wound into a cake-shaped structure by adopting a continuous winding method, namely a positive section and a reverse section, no interlayer or external insulation is adopted, bare leakage is in the air, heat dissipation of a wire is facilitated, additional loss generated by leakage magnetic flux is small, and noise is not easy to generate after long-term operation.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of a core assembly according to the present utility model;

FIG. 3 is a schematic diagram of a coil A according to the present utility model;

fig. 4 is a schematic diagram of a prior art structure of the present utility model.

In the figure: the coil A, the coil B, the coil C, the coil insulating plate 13, the coil fixing bolt 14, the iron yoke 20, the longitudinal iron leg 21, the transverse iron leg 22, the binding post 30, the binding post 31, the iron leg 40, the binding post insulating plate 41 and the fixing insulating pad sleeve 42, the air gap 50, the iron leg 51 and the iron leg 52.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-4, the present utility model provides a technical solution: a three-phase shell type air-core reactor comprises an iron core assembly, a coil assembly and a mounting assembly;

the iron core assembly comprises iron yokes 20, longitudinal iron core columns 21 and transverse iron core columns 22, wherein the two longitudinal iron core columns 21 are arranged in a left-right corresponding mode, the upper ends and the lower ends of the two longitudinal iron core columns 21 are respectively connected through the two iron yokes 20, the two transverse iron core columns 22 are arranged between the two longitudinal iron core columns 21, and the iron yokes 20, the longitudinal iron core columns 21 and the transverse iron core columns 22 are combined to form a 'mesh' -shaped structure;

the coil component is arranged between the gaps of the 'mu' -shaped structure;

the coil assembly comprises a coil A10, a coil B11 and a coil C12, wherein the coil A10, the coil B11 and the coil C12 are sequentially arranged among three gaps of the 'mu' -shaped structure from top to bottom, the coil A10 is arranged at the top, the coil B11 is arranged in the middle, and the coil C12 is arranged at the bottom.

Coil A10, coil B11 and coil C12 all adopt continuous winding method to divide positive section and reverse section to wind into cake formula structure, do not have the interlaminar and outsourcing insulation, and naked hourglass is in the air, more is favorable to the wire heat dissipation, and the additional loss that the magnetic flux produced is little, also is difficult to produce the noise after long-term operation.

The coil assembly further comprises an insulating plate 13, insulating plates 13 are arranged on the upper sides of the coil A10, the coil B11 and the coil C12, and the insulating plates 13 distributed up and down enable the coil A10, the coil B11 and the coil C12 to isolate iron cores, so that insulation is ensured.

The middle parts of the iron yoke 20 and the transverse iron core column 22 are respectively sleeved with a fixed insulating pad sleeve 42 which is used for sleeved with the iron yoke 20 and the transverse iron core column 22, and meanwhile, the insulating plate 13 is pressed by the pad, so that the insulating plate 13 is stably installed;

the installation component includes iron core support 40 and external wiring group, and iron core support 40 is installed respectively to the front and back side of every vertical iron core post 21, installs external wiring group between two iron core support 40 tops of front side, and the upper and lower end of iron core support 40 is through the tip of fixed bolt 14 fixed connection corresponding iron yoke 20 respectively, and the bottom outside bending type of iron core support 40 sets up, and the mounting hole has been seted up to the junction.

In a second embodiment, referring to fig. 1-4, the present utility model provides a technical solution: a three-phase shell type air-core reactor, this embodiment is further explained for the first embodiment;

the external wiring group comprises a wiring insulating plate 41, the wiring insulating plate 41 is arranged between the tops of the two iron core brackets 40, and two ends of the wiring insulating plate 41 are respectively fixedly connected with the tops of the front sides of the corresponding iron core brackets 40 through screws. The post insulating plate 41 is used for mounting the wiring member.

The external wiring group further comprises wiring posts 30 and wiring terminals 31, six wiring posts 30 are fixedly connected to the front side of the wiring post insulating plate 41 at equal distance, the wiring terminals 31 are connected to each wiring post 30 respectively, and the wiring posts 30 and the wiring terminals 31 are used for wiring.

The three-phase shell type air-core reactor is mainly characterized in that: the coil is not wound with the iron core and belongs to the air core reactor in the common sense, and the iron core with the shell type structure at the periphery of the coil belongs to the iron core reactor in the common sense, so that the air core reactor and the iron core reactor have the advantages.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The three-phase shell type air-core reactor is characterized by comprising an iron core assembly, a coil assembly and an installation assembly;

the iron core assembly comprises iron yokes (20), longitudinal iron core columns (21) and transverse iron core columns (22), wherein the two longitudinal iron core columns (21) are arranged in a left-right corresponding mode, the upper ends and the lower ends of the two longitudinal iron core columns (21) are respectively connected through the two iron yokes (20), the two transverse iron core columns (22) are arranged between the two longitudinal iron core columns (21), and the iron yokes (20), the longitudinal iron core columns (21) and the transverse iron core columns (22) are combined to form a 'mesh' -shaped structure;

the coil component is arranged between the gaps of the 'mu' -shaped structure;

the installation component includes iron core support (40) and external connection group, and iron core support (40) are installed respectively to the front and back side of every vertical iron core post (21), installs external connection group between two iron core support (40) tops of front side.

2. A three-phase shell air-core reactor according to claim 1, characterized in that: the coil assembly comprises a coil A (10), a coil B (11) and a coil C (12), wherein the coil A (10), the coil B (11) and the coil C (12) are sequentially arranged among three gaps of the 'mesh' -shaped structure from top to bottom.

3. A three-phase shell air-core reactor according to claim 2, characterized in that: the coil A (10), the coil B (11) and the coil C (12) are all wound into a pancake type structure by adopting a continuous winding method, namely a positive section and a reverse section.

4. A three-phase shell air-core reactor according to claim 2, characterized in that: the coil assembly further comprises an insulating plate (13), and insulating plates (13) are arranged on the upper sides of the coil A (10), the coil B (11) and the coil C (12).

5. A three-phase shell air-core reactor according to claim 1, characterized in that: the external wiring group comprises wiring insulating plates (41), the wiring insulating plates (41) are arranged between the tops of the two iron core brackets (40), and two ends of the wiring insulating plates (41) are fixedly connected with the tops of the front sides of the corresponding iron core brackets (40) through screws respectively.

6. A three-phase shell air-core reactor according to claim 5, wherein: the external wiring group further comprises wiring posts (30) and wiring terminals (31), six wiring posts (30) are fixedly connected to the front side of the wiring post insulating plate (41) at equal intervals, and the wiring terminals (31) are connected to each wiring post (30) respectively.