CN216212799U

CN216212799U - Transformer with iron yoke insulating belt forming press block

Info

Publication number: CN216212799U
Application number: CN202122543764.3U
Authority: CN
Inventors: 许凯旋; 梁庆宁; 周登灵; 张淑菁; 关辉淋; 周利波; 罗景桃; 梁毅雄; 李楚泳
Original assignee: Haihong Electric Co Ltd
Current assignee: Haihong Electric Co Ltd
Priority date: 2021-10-20
Filing date: 2021-10-20
Publication date: 2022-04-05
Anticipated expiration: 2031-10-20

Abstract

The utility model discloses a transformer with an iron yoke insulating tape forming press block, which comprises an iron core, wherein a coil is sleeved on a core column of the iron core, the upper surface and the lower surface of the coil are respectively provided with an upper clamping piece and a lower clamping piece, iron yoke insulating pieces are respectively arranged between the upper clamping piece and the coil and between the lower clamping piece and the coil, each iron yoke insulating piece comprises an insulating press block and an insulating ring, the insulating press block is formed by casting an insulating material, and the insulating rings are arranged between the insulating press block and the upper clamping piece and between the insulating press block and the lower clamping piece; the iron yoke insulating part comprises insulating briquetting and insulating collar in this product, and the bonding process does not have during the installation, convenient assembling, in addition, insulating briquetting is by the direct casting moulding of insulating material, need not cutting and bonding process in the production process, can avoid the incident because of the cutting process appears in the production process, and produces and can not produce the waste material almost, can improve production efficiency, practices thrift cost of labor and material saving cost.

Description

Transformer with iron yoke insulating belt forming press block

Technical Field

The utility model relates to the field of transformers, in particular to a transformer with an iron yoke insulation belt forming press block.

Background

As power systems develop, safety and reliability of power equipment are concerned, and how reliable a transformer is as a main equipment for converting electric energy in a power system will directly affect the quality of electricity used by users.

In the transformer structure, the yoke insulator is usually located between the coil and the clamping piece, and plays the role of insulating, supporting, compressing and fixing the coil, and the current yoke insulator is usually made of wood or cardboard, but the following problems exist when the yoke insulator is made of wood or cardboard:

1. the traditional iron yoke insulating pressing block is cut, and due to the fact that the danger degree of the process is high, workers can be injured in the process;

2. the cutting and bonding of the iron yoke insulating pressing block need to consume a large amount of labor, and simultaneously generate a large amount of waste materials, so that the production cost is invisibly increased;

3. the contact part of the traditional iron yoke insulating pressing block and the coil usually plugs an axial oil passage of the coil, and the heat dissipation of the transformer coil is influenced.

Therefore, a new insulation structure of the iron yoke for the transformer is required to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the utility model provides a transformer with an iron yoke insulation belt molding press block.

The utility model discloses a transformer with an iron yoke insulating tape forming press block, which comprises an iron core, wherein a coil is sleeved on a core column of the iron core, an upper clamping piece and a lower clamping piece are respectively arranged on the upper surface and the lower surface of the coil, iron yoke insulating pieces are respectively arranged between the upper clamping piece and the coil and between the lower clamping piece and the coil, each iron yoke insulating piece comprises an insulating press block and an insulating ring, the insulating press block is formed by pouring an insulating material, and the insulating rings are arranged between the insulating press block and the upper clamping piece and between the insulating press block and the lower clamping piece.

The transformer with the iron yoke insulating tape forming press block provided by the embodiment of the utility model at least has the following beneficial effects: the iron yoke insulating part comprises insulating briquetting and insulating collar in this product, and the bonding process does not have during the installation, convenient assembling, in addition, insulating briquetting is by the direct casting moulding of insulating material, need not cutting and bonding process in the production process, can avoid the incident because of the cutting process appears in the production process, and produces and can not produce the waste material almost, can improve production efficiency, practices thrift cost of labor and material saving cost.

According to some embodiments of the utility model, the insulating compact is made of nylon or resin insulating material.

According to some embodiments of the utility model, the insulating compact is rectangular, trapezoidal or fan-shaped in its entirety.

According to some embodiments of the utility model, the insulating ring is provided with a limiting hole.

According to some embodiments of the utility model, the insulation pressing block is fixedly installed on the upper and lower clamping pieces by a positioning structure passing through a limiting hole.

According to some embodiments of the utility model, the positioning structure is a boss, slot structure.

According to some embodiments of the utility model, some or all of the insulating compacts are provided with heat dissipation channels, and the directions of the heat dissipation channels are perpendicular to or parallel to the upper/lower surfaces of the coil.

According to some embodiments of the utility model, the insulating ring is generally annular or scalloped.

According to some embodiments of the utility model, the insulating compacts are located at both ends and in the middle of the insulating ring.

According to some embodiments of the utility model, an insulator is disposed between each of the upper and lower clips and the coil.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The utility model is further described with reference to the following figures and examples, in which:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the construction of the iron yoke insulator of the present invention;

FIG. 3 is a schematic diagram of the structure of an insulating compact of the present invention;

FIG. 4 is a schematic view of a second embodiment of the insulating compact of the present invention;

FIG. 5 is a schematic view of a third embodiment of the insulating compact of the present invention;

FIG. 6 is a schematic view of a fourth embodiment of an insulating compact according to the present invention;

FIG. 7 is a schematic view of a fifth embodiment of an insulating compact according to the present invention;

FIG. 8 is a sixth construction of the insulating compact of the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to, for example, the upper, lower, etc., is indicated based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

In the description of the present invention, a plurality means two or more. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.

Referring to fig. 1 and 2, a transformer with a pressed block formed by an iron yoke insulating tape includes an iron core 1, a coil 2 is sleeved on a core column of the iron core 1, upper and

lower clamping pieces

31 and 32 are respectively disposed on upper and lower surfaces of the coil 2, an iron yoke insulating member 4 is respectively disposed between the upper and

lower clamping pieces

31 and 32 and the coil 2, the iron yoke insulating member 4 includes an insulating pressed block 41 and an insulating ring 42, the insulating pressed block 41 is molded by casting of an insulating material, the insulating pressed block 4 is generally made of an insulating material such as nylon or resin in order to ensure that the insulating pressed block 41 does not chemically react with transformer oil, and the insulating ring 42 is disposed between the insulating pressed block 41 and the upper and

lower clamping pieces

31 and 32.

Referring to fig. 3, in the present embodiment, the insulation compact 41 has a rectangular, trapezoidal or fan shape as a whole, the insulation ring 42 has a circular or fan-shaped ring shape as a whole, the insulation compact 41 is located at two ends and a middle position of the insulation ring 42, and in addition, the insulation members 5 are respectively disposed between the upper and

lower clamping members

31 and 32 and the coil 2, so that the insulation compact 41 and the insulation members 5 are disposed around the core leg of the transformer core 1.

In this embodiment, the insulating ring 42 is provided with a limiting hole 44, and the insulating pressing block 41 is fixed to the upper and

lower clamping pieces

31 and 32 by passing through the limiting hole 44 by a positioning structure, which may be a boss or slot structure. For example, referring to fig. 3, 4 and 5, the insulating pressing block 41 is provided with a boss 45, the upper and

lower clamping pieces

31 and 32 are provided with positioning grooves or through holes, and the boss 45 penetrates through the limiting hole 44 on the insulating ring 42 and is directly inserted into the positioning grooves or through holes during installation. Of course, as required, referring to fig. 6, 7 and 8, the insulation pressing block 41 is provided with a positioning groove or through hole 46, and the upper and

lower clamping members

31 and 32 are provided with bosses matching with the positioning groove or through hole, so as to achieve the same assembling effect.

Some or all of the insulating compacts 41 are provided with heat dissipation passages 43, and the directions of the heat dissipation passages 43 are perpendicular or parallel to the upper/lower surfaces of the coil 2. The arrangement of the heat dissipation channel 43 can maximally avoid blocking the coil, and the heat dissipation performance of the coil is improved. The heat dissipation channel 43 may be disposed in a direction perpendicular to the upper/lower surfaces of the coil 2, as shown in fig. 4 and 7; or parallel to the upper/lower surfaces of the coil 2, as shown in fig. 3 and 6; or heat dissipation channels 43 perpendicular and parallel to the upper/lower surfaces of the coil 2 may be provided on the insulating compact 41 at the same time, as shown in fig. 5 and 8.

Iron yoke insulating part 4 comprises insulating briquetting 41 and insulating collar 42 in this product, and the bonding process does not have during the installation, convenient assembling, in addition, insulating briquetting 41 is by the direct casting moulding of insulating material, need not cutting and bonding process in the production process, can avoid the incident because of the cutting process appears in the production process, and production can not produce the waste material almost, can improve production efficiency, practices thrift cost of labor and material saving cost.

The foregoing detailed description of the preferred embodiments of the utility model has been presented. It should be understood that numerous modifications and variations could be devised by those skilled in the art in light of the present teachings without departing from the inventive concepts. Therefore, the technical solutions available to those skilled in the art through logic analysis, reasoning and limited experiments based on the prior art according to the concept of the present invention should be within the scope of protection defined by the claims.

Claims

1. The utility model provides a transformer of yoke insulating tape shaping briquetting which characterized in that: the iron core comprises an iron core (1), wherein a coil (2) is sleeved on a core column of the iron core (1), an upper clamping piece and a lower clamping piece (31 and 32) are respectively arranged on the upper surface and the lower surface of the coil (2), an iron yoke insulating piece (4) is respectively arranged between the upper clamping piece and the coil (2), the iron yoke insulating piece (4) comprises an insulating pressing block (41) and an insulating ring (42), the insulating pressing block (41) is formed by casting insulating materials, and the insulating ring (42) is arranged between the insulating pressing block (41) and the upper clamping piece and the lower clamping piece (31 and 32).

2. The transformer of claim 1, wherein the iron yoke insulating tape molding press block comprises: the insulation pressing block (41) is made of nylon or resin insulation materials.

3. The transformer of claim 1, wherein the iron yoke insulating tape molding press block comprises: the insulating pressing block (41) is integrally rectangular, trapezoidal or fan-shaped.

4. The transformer of claim 1, wherein the iron yoke insulating tape molding press block comprises: and a limiting hole (44) is formed in the insulating ring (42).

5. The transformer of claim 4, wherein the iron yoke insulating tape molding press block comprises: the insulation pressing block (41) penetrates through a limiting hole (44) by adopting a positioning structure to be fixedly installed with the upper clamping piece (31) and the lower clamping piece (32).

6. The transformer of claim 5, wherein the iron yoke insulating tape molding press block comprises: the positioning structure is a boss and slot structure.

7. The transformer of claim 1, wherein the iron yoke insulating tape molding press block comprises: and a heat dissipation channel (43) is arranged on part or all of the insulation pressing blocks (41), and the direction of the heat dissipation channel (43) is perpendicular to or parallel to the upper/lower surfaces of the coil (2).

8. The transformer of claim 1, wherein the iron yoke insulating tape molding press block comprises: the whole insulating ring (42) is in a circular ring shape or a sector ring shape.

9. The transformer of claim 6, wherein the iron yoke insulating tape molding press block comprises: the insulation pressing blocks (41) are positioned at two ends and the middle position of the insulation ring (42).

10. The transformer of claim 1, wherein the iron yoke insulating tape molding press block comprises: and an insulating part (5) is respectively arranged between the upper clamping piece (31) and the coil (2), and between the lower clamping piece (32) and the coil (2).