CN219958755U - Insulation structure for transformer coil - Google Patents

Insulation structure for transformer coil Download PDF

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Publication number
CN219958755U
CN219958755U CN202321624041.9U CN202321624041U CN219958755U CN 219958755 U CN219958755 U CN 219958755U CN 202321624041 U CN202321624041 U CN 202321624041U CN 219958755 U CN219958755 U CN 219958755U
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China
Prior art keywords
coil
wall
iron core
core body
insulation structure
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CN202321624041.9U
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Chinese (zh)
Inventor
高志建
俞忠富
徐微微
吕梅蕾
吴飞
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Zhejiang Zhidian Feijing Electric Co ltd
Quzhou University
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Zhejiang Zhidian Feijing Electric Co ltd
Quzhou University
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Abstract

The utility model discloses an insulation structure for a transformer coil, and relates to the technical field of transformers and related accessories thereof. The utility model comprises an iron core body, wherein an inner coil is wound on the outer side of the outer wall of the iron core body, an insulating layer is arranged on the outer side of the outer wall of the inner coil, a fixing part is arranged on one side above the iron core body, a groove is formed in the edge of one side of the front end of the fixing part, a fixing component comprises a warped plate and a pressing plate, the end face of one side of the warped plate is welded with the pressing plate, and clamping teeth are uniformly arranged on the inner side wall of the pressing plate at intervals along the horizontal direction. According to the utility model, the inner layer coil, the insulating layer and the fixing component are used, the strip-shaped insulating tape is wound between the two layers of coils, and the insulating tape with different turns is wound according to different voltage differences of different parts of the coils, so that waste of the insulating tape between layers is avoided, the insulating tape is saved, the volume of the inside of the transformer is reduced, the limit effect of the end part of the coil can be realized or cancelled rapidly, and the working efficiency is high.

Description

Insulation structure for transformer coil
Technical Field
The utility model belongs to the technical field of transformers and related accessories thereof, and particularly relates to an insulation structure for a transformer coil.
Background
Along with development of science and technology and society, equipment in various fields is greatly improved, a transformer is basic equipment for power transmission and distribution, a high-voltage coil of a transformer iron core is formed by winding a plurality of turns of wires, one winding is provided with a plurality of layers, the turns can be greatly changed due to interlayer short circuit, insulating paper is needed between cushion layers between the wires in order to keep the electric insulation strength between the wires, and breakdown short circuit of the wires at the upper layer and the lower layer is avoided, but the transformer iron core has the following defects in actual use:
1. when the existing insulating structure for the transformer coil is used, the thickness of the interlayer insulating paper needs to be consistent with the thickness required by the position of the highest voltage between the layers, so that the manufacturing cost of the interlayer insulating paper is increased, the waste of the insulating paper at the position of the low voltage between the layers is caused, and the using volume of the inside of the transformer is increased by using the interlayer insulating paper with the maximum thickness, so that the whole volume of the transformer is increased;
2. the existing insulating structure for the transformer coil is mostly to directly wind the coil end on the fixing part when in use, and the mode is complicated, time-consuming and labor-consuming, and low in working efficiency.
Disclosure of Invention
The utility model aims to provide an insulating structure for a transformer coil, which is characterized in that a strip-shaped insulating tape is wound between two layers of coils through an inner layer coil, an insulating layer and a fixing assembly, and the insulating tape with different turns is wound according to different voltage differences of different parts of the coils, so that waste of the insulating tape between layers is avoided, the insulating tape is saved, the volume inside the transformer is reduced, the limit effect of the end part of the coil can be realized or cancelled rapidly, and the working efficiency is high.
In order to solve the technical problems, the utility model is realized by the following technical scheme:
the utility model relates to an insulation structure for a transformer coil, which comprises an iron core body, wherein an inner coil is wound on the outer side of the outer wall of the iron core body, an insulation layer is arranged on the outer side of the outer wall of the inner coil, a fixing part is arranged on one side of the upper part of the iron core body, a groove is formed in the edge of one side of the front end of the fixing part, a fixing component is arranged on one side of the inner part of the groove, the fixing component comprises a rocker and a pressing plate, the end face of one side of the rocker is welded with the pressing plate, clamping teeth are uniformly arranged on the inner side wall of the pressing plate at intervals along the horizontal direction, insulation layers are arranged between adjacent coils, the thickness of the insulation layers is changed according to the change of a voltage difference, and the pressing plate and the clamping teeth are arranged on the rocker and move along with the movement of the rocker.
Further, the insulating layer is formed by winding an insulating tape, the other end of the insulating tape is wound on the outer side of the outer wall of the fixing part, a plurality of layers of insulating tapes are wound on the fixing part, the winding thickness is larger than or equal to the actually required insulating thickness of the coil, the width of the insulating tape is larger than the width of the wire, and insulating paint is arranged on the insulating tape.
Further, an outer coil is sleeved outside the outer wall of the insulating layer, and the other end of the outer coil is fixed on the fixing part.
Further, one end welding of fixed part has the mounting panel, and both ends all pass through fixing bolt and adjacent object fixed connection around one side end face of mounting panel, and inside one side of recess is provided with the draw-in groove, carries out fixed mounting to the fixed part through fixing bolt.
Further, the inside wall top and the bottom of wane are all connected with the pivot through the connecting block, and the outer wall outside cover of pivot is equipped with the torsional spring, drives the wane and uses the pivot to rotate as the centre of a circle under the elastic performance effect of torsional spring.
Further, both ends of the rotating shaft are respectively arranged in bearings on the inner walls of the adjacent side plates, and the end faces of the rear ends of the side plates are fixed on the inner walls of the grooves.
The utility model has the following beneficial effects:
1. according to the utility model, the inner layer coil and the insulating layer are arranged, the strip-shaped insulating tape is wound between the two layers of coils, and the insulating tape with different turns is wound according to different voltage differences of different parts of the coils, so that waste of the insulating tape between layers is avoided, the insulating tape is saved, the internal volume of the transformer is reduced, and the problem that the thickness of the interlayer insulating paper needs to be consistent with the thickness required by the highest voltage position between layers when the traditional insulating structure for the transformer coil is used is solved, thus the manufacturing cost of the interlayer insulating paper is increased, waste of the insulating paper at the low voltage position between layers is caused, the use volume of the transformer is increased by using the interlayer insulating paper with the maximum thickness, and the whole volume of the transformer is increased is solved.
2. According to the utility model, the fixing component is arranged, so that the positions of the pressing plate and the clamping teeth can be conveniently and rotationally adjusted under the action of the elastic performance of the torsion spring, the limit effect of the coil end part can be rapidly realized or canceled, the working efficiency is high, and the problems that the existing insulating structure for the transformer coil is complicated in mode, time-consuming and labor-consuming, and low in working efficiency are caused because the coil end part is mostly directly wound on the fixing part when the insulating structure is used are solved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural view of an insulation structure for a transformer coil;
fig. 2 is a disassembled view of the core body;
fig. 3 is a structural view of the fixing portion;
fig. 4 is a structural view of the fixing assembly.
In the drawings, the list of components represented by the various numbers is as follows:
1. an iron core body; 101. an inner layer coil; 102. an insulating layer; 103. an insulating tape; 104. an outer layer coil; 2. a fixing part; 201. a mounting plate; 202. a fixing bolt; 203. a groove; 204. a clamping groove; 3. a fixing assembly; 301. a seesaw; 302. a pressing plate; 303. latch teeth; 304. a rotating shaft; 305. a torsion spring; 306. and a side plate.
Detailed Description
The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.
Referring to fig. 1 to 4, the present utility model is an insulation structure for a transformer coil, comprising an iron core body 1, an inner layer coil 101 is wound on the outer side of the outer wall of the iron core body 1, an insulation layer 102 is provided on the outer side of the outer wall of the inner layer coil 101, a fixing portion 2 is provided on one side above the iron core body 1, a groove 203 is provided at the edge of one side of the front end of the fixing portion 2, a fixing component 3 is provided on one side of the inner side of the groove 203, the fixing component 3 comprises a rocker 301 and a pressing plate 302, one side end surface of the rocker 301 is welded with the pressing plate 302, clamping teeth 303 are uniformly arranged on the inner side wall of the pressing plate 302 at intervals along the horizontal direction, insulation layers 102 are provided between adjacent coils, the thickness of the insulation layer 102 is changed according to the voltage difference change, the pressing plate 302 and the clamping teeth 303 are provided on the rocker 301, and move along with the movement of the rocker 301.
As shown in fig. 1 to 2, the insulating layer 102 is formed by winding an insulating tape 103, the other end of the insulating tape 103 is wound on the outer side of the outer wall of the fixed part 2, a plurality of layers of insulating tapes 103 are wound on the fixed part 2, the winding thickness is larger than or equal to the actually required insulating thickness of the coil, the width of the insulating tape 103 is larger than the width of a wire, insulating paint is arranged on the insulating tape 103, an outer layer coil 104 is sleeved on the outer side of the outer wall of the insulating layer 102, and the other end of the outer layer coil 104 is fixed on the fixed part 2.
As shown in fig. 1 and 3, one end of the fixing portion 2 is welded with a mounting plate 201, front and rear ends of one side end surface of the mounting plate 201 are fixedly connected with adjacent objects through fixing bolts 202, a clamping groove 204 is formed in one side of the inside of the groove 203, and the fixing portion 2 is fixedly mounted through the fixing bolts 202.
As shown in fig. 3 to 4, the top and the bottom of the inner side wall of the rocker 301 are connected with the rotating shaft 304 through connecting blocks, a torsion spring 305 is sleeved on the outer side of the outer wall of the rotating shaft 304, the rocker 301 is driven to rotate by taking the rotating shaft 304 as a circle center under the action of the elastic performance of the torsion spring 305, two ends of the rotating shaft 304 are respectively installed in bearings on the inner walls of the adjacent side plates 306, and the end faces of the rear ends of the side plates 306 are fixed on the inner walls of the grooves 203.
One specific application of this embodiment is: in order to improve the energy efficiency of the transformer and realize the energy saving and loss reduction of the transformer, the material, structure and coil arrangement of the transformer are generally improved, wherein the high-voltage coil of the transformer core is formed by winding a plurality of turns of wires, one winding has a plurality of layers, interlayer short circuit can cause great change of the turns, insulating paper is needed between layers of wires in order to maintain the electric insulation strength between the wires, in the process of padding, a layer of inner coil 101 is wound on the surface of the core body 1, then an insulating tape 103 with uniform width is adopted to wind the inner coil to form an insulating layer 102, then the insulating layer 102 is wound between two layers of coils, wherein the width of the insulating tape 103 is larger than the width of the wires, insulating paint for insulation is arranged on the insulating tape 103, the end part of the wires is fixed on the fixed part 2, and the plurality of layers of insulating tapes 103 are wound on the fixed part 2, the thickness of the insulation layer 102 between two coils with different voltage differences is different by winding the strip-shaped insulation tape 103 between the two coils with different voltage differences according to the different voltage differences of different parts of the coils, the insulation tape 103 with different numbers of turns is wound according to the different voltage differences of different parts of the coils, the waste of the insulation tape 103 between layers is avoided, the insulation tape 103 is saved, the volume of the inside of the transformer is reduced, when the end part of the inner layer coil 101 or the outer layer coils 104 is fixed, one end of the rocker 301 is pressed inwards, one end of the rocker 301 is stressed to rotate around the rotating shaft 304 as the center of a circle and presses the torsion spring 305, at this time, the pressure plate 302 and the latch 303 are driven to rotate under the action of the rocker 301, then the end part of the coil is clamped into the clamping groove 204 and the force is applied to the rocker 301 is stopped, at this time, the rocker 301 is sprung back to its original position by the resilient nature of the torsion spring 305 and the latch 303 on the pressure plate 302 engages the catch 204 to secure the coil end.
The foregoing is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, and any modification, equivalent replacement, and improvement of some of the technical features described in the foregoing embodiments are all within the scope of the present utility model.

Claims (6)

1. Insulation structure for transformer coil, comprising an iron core body (1), characterized in that: the utility model discloses a novel iron core, including iron core body (1), outer wall outside winding of iron core body (1) has inlayer coil (101), the outer wall outside of inlayer coil (101) is provided with insulating layer (102), top one side of iron core body (1) is provided with fixed part (2), front end one side edge of fixed part (2) is provided with recess (203), inside one side of recess (203) is provided with fixed subassembly (3), fixed subassembly (3) include wane (301) and clamp plate (302), one side terminal surface welding of wane (301) has clamp plate (302), the inside wall of clamp plate (302) is provided with latch (303) along the even interval of horizontal direction.
2. An insulation structure for a transformer coil according to claim 1, wherein: the insulating layer (102) is formed by winding an insulating tape (103), and the other end of the insulating tape (103) is wound on the outer side of the outer wall of the fixing part (2).
3. An insulation structure for a transformer coil according to claim 2, wherein: an outer coil (104) is sleeved outside the outer wall of the insulating layer (102), and the other end of the outer coil (104) is fixed on the fixing part (2).
4. An insulation structure for a transformer coil according to claim 1, wherein: one end of the fixing part (2) is welded with a mounting plate (201), the front end and the rear end of one side end surface of the mounting plate (201) are fixedly connected with adjacent objects through fixing bolts (202), and a clamping groove (204) is formed in one side of the inside of the groove (203).
5. An insulation structure for a transformer coil according to claim 1, wherein: the top and the bottom of the inner side wall of the rocker (301) are connected with a rotating shaft (304) through connecting blocks, and a torsion spring (305) is sleeved on the outer side of the outer wall of the rotating shaft (304).
6. An insulation structure for a transformer coil according to claim 5, wherein: both ends of the rotating shaft (304) are respectively arranged in bearings on the inner walls of the adjacent side plates (306), and the rear end faces of the side plates (306) are fixed on the inner walls of the grooves (203).
CN202321624041.9U 2023-06-26 2023-06-26 Insulation structure for transformer coil Active CN219958755U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202321624041.9U CN219958755U (en) 2023-06-26 2023-06-26 Insulation structure for transformer coil

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202321624041.9U CN219958755U (en) 2023-06-26 2023-06-26 Insulation structure for transformer coil

Publications (1)

Publication Number Publication Date
CN219958755U true CN219958755U (en) 2023-11-03

Family

ID=88551801

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202321624041.9U Active CN219958755U (en) 2023-06-26 2023-06-26 Insulation structure for transformer coil

Country Status (1)

Country Link
CN (1) CN219958755U (en)

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