CN215451138U

CN215451138U - Transformer coil end insulation structure

Info

Publication number: CN215451138U
Application number: CN202121804992.5U
Authority: CN
Inventors: 陈维大
Original assignee: Shandong Qingda Electronic Technology Co ltd
Current assignee: Shandong Qingda Electronic Technology Co ltd
Priority date: 2021-08-04
Filing date: 2021-08-04
Publication date: 2022-01-07
Anticipated expiration: 2031-08-04

Abstract

The utility model discloses an insulation structure of a transformer coil end, belonging to the field of transformers, comprising a transformer body, wherein a coil is arranged in the transformer body, the lower end of the transformer body is provided with an end part, the surface of the end part is provided with an insulation structure, the insulation structure of the transformer coil end is provided with an inner insulation layer and an outer insulation layer inside the insulation structure, the inner insulation layer is provided with a plurality of bulges, the arrangement of the plurality of bulges can reduce the contact area and the friction force between the end part and the insulating structure, thereby reducing the generation of heat, simultaneously ensuring the insulation effect and preventing the electric leakage and electric shock phenomena due to the double insulation characteristics of the inner and outer insulation layers, meanwhile, the heat dissipation layer and the heat dissipation groove are further arranged inside the insulation structure, and the insulation structure has a good heat dissipation effect compared with other insulation structures, can prevent the transformer from being damaged due to overheating, and has the effect of prolonging the service life of the transformer.

Description

Transformer coil end insulation structure

Technical Field

The utility model relates to the field of transformers, in particular to an insulation structure for a coil end of a transformer.

Background

The transformer is a device for changing alternating voltage by utilizing the principle of electromagnetic induction, and the main components are a primary coil, a secondary coil and an iron core (magnetic core), and the main functions of the transformer are voltage conversion, current conversion, impedance conversion, isolation, voltage stabilization (magnetic saturation transformer) and the like.

At present, some transformer coil tip insulation system that exist on the market directly wrap up in the outer end of tip, when transformer during operation, because insulation system wraps up tightly, and insulation system is thick, the heat that leads to transformer work to produce is difficult to the effluvium, and simultaneously, the whole inner wall of insulation system tightly attaches the tip, lead to tip and insulation system still to produce heat, long-time the use, the phenomenon of the thermal damage can take place, the life of transformer has seriously been reduced, current insulation system only is provided with the one deck insulating layer again, its insulating effect probably has the leak, when using, take place electric leakage electric shock phenomenon easily, be unfavorable for the use.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an insulating structure for the coil end of a transformer, which is characterized in that an inner insulating layer and an outer insulating layer are arranged in the insulating structure, the inner insulating layer is provided with a plurality of bulges, the effect of reducing the contact area and the friction force between the end part and the insulating structure is achieved through the arrangement of the bulges, so that the heat generation is reduced, meanwhile, the double insulating characteristics of the inner insulating layer and the outer insulating layer ensure the insulating effect and prevent the electric leakage and electric shock.

In order to solve the above problems, the present invention adopts the following technical solutions.

An insulation structure of a transformer coil end comprises a transformer body, wherein a coil is arranged in the transformer body, an end part is arranged at the lower end of the transformer body, an insulation structure is arranged on the surface of the end part, an upper insulation sealing layer is arranged at the upper end of the insulation structure, a lower insulation sealing layer is arranged at the lower end of the insulation structure, an inner insulation layer is arranged in the insulation structure, an outer insulation layer is arranged outside the insulation structure, a heat dissipation layer is arranged between the inner insulation layer and the outer insulation layer, bulges are arranged on the inner surface of the inner insulation layer, an inner insulation layer and an outer insulation layer are arranged in the insulation structure of the transformer coil end, the inner insulation layer is provided with a plurality of bulges, the contact area and the friction force between the end part and the insulation structure are reduced through the arrangement of the bulges, and therefore the heat generation is reduced, the double insulation characteristic of while internal and external insulation layer has the effect of guaranteeing insulating effect, prevents to take place the effect of electric leakage electric shock phenomenon, and insulating structure's inside still is provided with heat dissipation layer and radiating groove simultaneously, and other insulating structure relatively has good radiating effect, can prevent that the transformer from because of overheated damage, has extension transformer life's effect.

Furthermore, the upper end of the inner insulating layer is connected with the upper insulating sealing layer, the lower end of the inner insulating layer is connected with the lower insulating sealing layer, and the upper end and the lower end of the inner insulating layer are connected with the upper insulating sealing layer and the lower insulating sealing layer, so that the sealing performance of the insulating structure is guaranteed.

Furthermore, the upper end of the outer insulating layer is connected with the upper insulating sealing layer, the lower end of the outer insulating layer is connected with the lower insulating sealing layer, and the upper end and the lower end of the outer insulating layer are connected with the upper insulating sealing layer and the lower insulating sealing layer, so that the sealing performance of the insulating structure is guaranteed.

Furthermore, the inner insulating layer is arranged inside the outer insulating layer, and the insulating resistance of the insulating structure is strong through the arrangement of the inner insulating layer and the outer insulating layer, so that the electric leakage and electric shock phenomena cannot occur easily.

Furthermore, a heat dissipation groove is arranged between the heat dissipation layers and has a heat dissipation effect, and heat generated when the transformer body is used can be dissipated.

Compared with the prior art, the utility model has the advantages that:

(1) this scheme is provided with inner insulating layer and outer insulating layer in insulation system's inside, and the inner insulating layer is provided with a plurality of archs, through a plurality of bellied settings, it is effective to have the effect that reduces tip and insulation system contact area and friction power, thereby reduce thermal production, the double insulation characteristic of inner and outer insulating layer simultaneously, it guarantees insulating effect to have, the effect of the electric shock phenomenon of preventing to take place to leak electricity, insulation system's inside still is provided with heat dissipation layer and radiating groove simultaneously, other insulation system relatively, good radiating effect has, can prevent that the transformer from damaging because of overheating, the effect that has extension transformer life.

(2) The upper end of the inner insulating layer is connected with the upper insulating sealing layer, the lower end of the inner insulating layer is connected with the lower insulating sealing layer, and the upper end and the lower end of the inner insulating layer are connected with the upper insulating sealing layer and the lower insulating sealing layer, so that the sealing effect of the insulating structure is guaranteed.

(3) The upper end of the outer insulating layer is connected with the upper insulating sealing layer, the lower end of the outer insulating layer is connected with the lower insulating sealing layer, and the upper end and the lower end of the outer insulating layer are connected with the upper insulating sealing layer and the lower insulating sealing layer, so that the sealing performance of the insulating structure is guaranteed.

(4) The inner insulating layer is arranged inside the outer insulating layer, and the inner insulating layer and the outer insulating layer are arranged, so that the insulating resistance of the insulating structure is high, and the electric leakage and electric shock phenomena cannot occur easily.

(5) The heat dissipation grooves are arranged between the heat dissipation layers and have a heat dissipation effect, and heat generated when the transformer body is used can be dissipated.

Drawings

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

FIG. 2 is a schematic view of the structure of the joint edge of the present invention;

fig. 3 is an enlarged view of fig. 2 at a.

The reference numbers in the figures illustrate:

1 transformer body, 2 coils, 3 ends, 4 insulation structures, 5 upper insulation sealing layers, 6 lower insulation sealing layers, 7 inner insulation layers, 8 outer insulation layers, 9 heat dissipation layers, 10 heat dissipation grooves and 11 bulges.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention; it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention.

Referring to fig. 1-3, an insulation structure for a transformer coil end includes a transformer body 1, referring to fig. 1-3, a coil 2 is disposed inside the transformer body 1, an end 3 is disposed at a lower end of the transformer body 1, an insulation structure 4 is disposed on a surface of the end 3, the insulation structure 4 has good insulation characteristics and has an effect of preventing leakage and electric shock, an upper insulation sealing layer 5 is disposed at an upper end of the insulation structure 4, the upper insulation sealing layer 5 and the lower insulation sealing layer 6 have an effect of sealing the insulation structure 4, a lower insulation sealing layer 6 is disposed at a lower end of the insulation structure 4, an inner insulation layer 7 is disposed inside the insulation structure 4, an outer insulation layer 8 is disposed outside the insulation structure 4, a heat dissipation layer 9 is disposed between the inner insulation layer 7 and the outer insulation layer 8, the heat dissipation layer 9 is made of PC sheet, and the PC sheet has a heat dissipation effect, still have certain insulating effect, the internal surface of inner insulating layer 7 is provided with arch 11, and the material that arch 11 adopted is insulating rubber, through the setting of a plurality of archs 11, not only has the effect that reduces tip 3 and insulation system 4 area of contact, still has the effect that reduces both frictions and produce heat.

Referring to fig. 2 and 3, the upper end of the inner insulating layer 7 is connected to the upper insulating sealing layer 5, the lower end is connected to the lower insulating sealing layer 6, the upper and lower ends of the inner insulating layer 7 are connected to the upper and lower insulating sealing layers, so that the sealing performance of the insulating structure 4 is ensured, the upper end of the outer insulating layer 8 is connected to the upper insulating sealing layer 5, the lower end is connected to the lower insulating sealing layer 6, and the upper and lower ends of the outer insulating layer 8 are connected to the upper insulating sealing layer 5 and the lower insulating sealing layer 6, so that the sealing performance of the insulating structure is ensured.

Referring to fig. 3, the inner insulating layer 7 is disposed inside the outer insulating layer 8, and the insulating structure 4 has a strong insulating resistance and is not prone to electric leakage or electric shock due to the arrangement of the inner and outer insulating layers, and the heat dissipation grooves 10 are disposed between the heat dissipation layers 9 and have a heat dissipation function, so that heat generated by the transformer body 1 during use can be dissipated.

When the transformer coil end insulation structure is arranged on the outer surface of the end part 3, the upper end and the lower end of the insulation structure 4 are provided with the upper insulation sealing layer 5 and the lower insulation sealing layer 6, the upper end and the lower end of the insulation structure 4 can be fixed with the end part 3, so that the sealing performance of the insulation structure 4 is ensured, the insulation structure 3 is provided with the inner insulation layer 7 and the outer insulation layer 8, the inner insulation layer 7 is internally provided with a plurality of bulges 11, the bulges 11 are made of insulation rubber, the arrangement of the bulges 11 not only has the function of reducing the contact area between the end part 3 and the insulation structure 4, but also has the function of reducing heat generated by friction between the two, and as the inner insulation layer 7 and the outer insulation layer 8 are arranged, the insulation resistance of the insulation structure 4 is stronger, the electric shock phenomenon of electric leakage cannot easily occur, and the heat dissipation layer 9 and the heat dissipation groove 10 are arranged in the insulation structure 4, the heat dissipation groove 10 has the effect of reducing the thickness of the inner wall of the insulating structure 4, has the heat dissipation effect at the same time, and has the effect of dissipating heat generated during the operation of the transformer body 1 through the arrangement of the heat dissipation layer 9 and the heat dissipation groove 10, so that the transformer body 1 is prevented from being damaged due to overheating, and the effect of prolonging the service life of the transformer body 1 is achieved.

The foregoing is only a preferred embodiment of the present invention; the scope of the utility model is not limited thereto. Any person skilled in the art should be able to cover the technical scope of the present invention by equivalent or modified solutions and modifications within the technical scope of the present invention.

Claims

1. The utility model provides a transformer coil tip insulation system, includes transformer body (1), its characterized in that: the transformer comprises a transformer body (1), wherein a coil (2) is arranged inside the transformer body (1), the lower end of the transformer body (1) is provided with an end part (3), the surface of the end part (3) is provided with an insulation structure (4), the upper end of the insulation structure (4) is provided with an upper insulation sealing layer (5), the lower end of the insulation structure (4) is provided with a lower insulation sealing layer (6), an inner insulation layer (7) is arranged inside the insulation structure (4), an outer insulation layer (8) is arranged outside the insulation structure (4), a heat dissipation layer (9) is arranged between the inner insulation layer (7) and the outer insulation layer (8), and a bulge (11) is arranged on the inner surface of the inner insulation layer (7).

2. A transformer coil end insulation structure according to claim 1, wherein: the upper end of the inner insulating layer (7) is connected with the upper insulating sealing layer (5), and the lower end of the inner insulating layer is connected with the lower insulating sealing layer (6).

3. A transformer coil end insulation structure according to claim 1, wherein: the upper end of the outer insulating layer (8) is connected with the upper insulating sealing layer (5), and the lower end of the outer insulating layer is connected with the lower insulating sealing layer (6).

4. A transformer coil end insulation structure according to claim 1, wherein: the inner insulating layer (7) is arranged inside the outer insulating layer (8).

5. A transformer coil end insulation structure according to claim 1, wherein: and heat dissipation grooves (10) are arranged between the heat dissipation layers (9).