CN216119842U

CN216119842U - Dry-type transformer

Info

Publication number: CN216119842U
Application number: CN202122791149.4U
Authority: CN
Inventors: 郭文静; 赵学良; 杨文博; 岳兴; 胥文斌; 毕钰; 杨永正
Original assignee: Laiwu Luneng Kaiyuan Group Electrical Appliance Co ltd
Current assignee: Laiwu Luneng Kaiyuan Group Electrical Appliance Co ltd
Priority date: 2021-11-15
Filing date: 2021-11-15
Publication date: 2022-03-22
Anticipated expiration: 2031-11-15

Abstract

The utility model discloses a dry-type transformer which comprises a transformer main body, wherein heat dissipation windows are respectively arranged at the top and the bottom of the side wall of the transformer main body, heat dissipation assemblies are fixedly connected to the middle parts of the four outer side walls, each heat dissipation assembly comprises a heat conduction plate, one side of each heat conduction plate, which is far away from the transformer main body, is fixedly connected with a heat conduction sheet, the heat conduction sheet is sleeved with a heat dissipation shell, and a through hole is formed in the heat dissipation shell. According to the utility model, through mutual matching among the heat conducting fins, the heat conducting plate and the heat radiating shell, compared with the existing transformer, the heat conducting plate made of graphene is adopted for conducting out heat inside the transformer firstly, compared with the traditional aluminum alloy material, the graphene material has a better heat conducting and radiating effect, and through further heat radiation of the heat conducting fins and the heat radiating shell, the transformer can be better cooled.

Description

Dry-type transformer

Technical Field

The utility model relates to the technical field of transformer equipment, in particular to a dry-type transformer.

Background

The dry type transformer mainly comprises an iron core formed by silicon steel sheets and coils poured by epoxy resin, an insulating cylinder is arranged between the high-voltage coils and the low-voltage coils to increase electrical insulation, the coils are supported and restrained by cushion blocks, and fasteners lapped by parts of the coils all have certain anti-loosening performance. In short, a dry transformer refers to a transformer in which an iron core and a winding are not immersed in insulating oil, and is widely used in places such as local lighting, high-rise buildings, airports, wharf CNC machines and the like.

When the dry type transformer is used, certain heat can be generated in the working process, aluminum alloy radiating fins are mostly adopted outside the existing dry type transformer for radiating, the radiating effect is general, the internal environment of the transformer is kept at a high temperature for a long time, the loss of electronic elements in the transformer is increased, and the service life of the transformer is shortened.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is as follows: the conventional dry-type transformer mostly adopts aluminum alloy radiating fins for radiating, has a common radiating effect, causes the internal environment of the transformer to be at a higher temperature for a long time, increases the loss of electronic elements in the transformer, and reduces the service life of the transformer.

In order to solve the technical problems, the utility model adopts a technical scheme that: the dry-type transformer comprises a transformer main body, wherein heat dissipation windows are formed in the top and the bottom of the side wall of the transformer main body, and heat dissipation assemblies are fixedly connected to the middle parts of the four outer side walls;

the heat dissipation assembly comprises a heat conduction plate, one side, far away from the transformer main body, of the heat conduction plate is fixedly connected with a heat conduction sheet, the heat conduction sheet is sleeved with a heat dissipation shell, and a through hole is formed in the heat dissipation shell.

Preferably, the dustproof net is fixedly connected to the inside of the heat dissipation window in an embedded mode, and dust in the external environment is reduced from accumulating inside the transformer, so that the heat dissipation efficiency of the transformer is improved.

Preferably, a plurality of mounting holes are formed in the heat conducting plate, the heat conducting plate is fixed with the inner side wall of the transformer main body through bolts, so that the heat conducting plate can be in close contact with the transformer shell, and heat conduction is facilitated.

Preferably, the heat-conducting plate is graphene materials, and compared with the traditional aluminum alloy radiating fin, the heat-conducting plate has a better heat-conducting effect and lower cost, and can conduct the heat inside the transformer better.

Preferably, the heat dissipation shell is internally provided with a cavity, the heat conducting fins are fixedly connected with the inner wall of the cavity, and the heat dissipation shell is sleeved outside the heat conducting fins, so that heat of the heat conducting fins can be conducted out, the heat conducting fins are protected, and the structural strength of the ultrathin heat conducting fins is improved.

Preferably, the heat dissipation shell is made of aluminum alloy, so that the heat conducting fins inside the heat dissipation shell are protected conveniently.

Preferably, the through-holes are nine and arranged in a rectangular array, so that the heat dissipation of the heat-conducting plate is facilitated.

The utility model has the following beneficial effects:

1. according to the utility model, through mutual matching among the heat conducting fins, the heat conducting plate and the heat radiating shell, compared with the existing transformer, the heat conducting plate made of graphene is adopted for conducting out heat inside the transformer firstly, compared with the traditional aluminum alloy material, the graphene material has a better heat conducting and radiating effect, and through further heat radiation of the heat conducting fins and the heat radiating shell, the transformer can be better cooled.

2. Compared with the traditional aluminum alloy radiating fin of the transformer, the aluminum alloy radiating fin of the transformer is provided with the heat conducting plate, the device adopts a mode of combining the graphene material and the aluminum alloy, and is lighter in overall mass, lower in production cost and convenient to use better.

Drawings

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a schematic structural diagram of a heat dissipation assembly according to the present invention;

fig. 3 is a schematic view of the structure of the heat-conducting sheet of the present invention.

In the figure: 1. a transformer body; 2. a heat dissipating component; 3. a heat dissipation window; 4. a heat conducting plate; 5. mounting holes; 6. a heat conductive sheet; 7. a heat dissipation housing; 8. and a through hole.

Detailed Description

The following detailed description of the preferred embodiments of the present invention, taken in conjunction with the accompanying drawings, will make the advantages and features of the utility model easier to understand by those skilled in the art, and thus will clearly and clearly define the scope of the utility model.

Referring to fig. 1, a dry type transformer includes a transformer body 1, heat dissipation windows 3 are formed in the top and bottom of the side wall of the transformer body 1, and a dust screen is fixedly connected to the heat dissipation windows 3 in an embedded manner, so that the accumulation of dust in the external environment inside the transformer is reduced, and the heat dissipation efficiency of the transformer is improved.

As shown in fig. 2, the equal fixedly connected with radiator unit 2 in four lateral wall middle parts, wherein radiator unit 2 includes heat-conducting plate 4, and a plurality of mounting holes 5 have been seted up to heat-conducting plate 4 inside, and heat-conducting plate 4 passes through the bolt fastening with 1 inside wall of transformer main part, makes heat-conducting plate 4 can with transformer housing in close contact with, be convenient for conduct the heat.

The heat conducting plate 4 is made of graphene, so that compared with the traditional aluminum alloy radiating fin, the heat conducting effect is better, the cost is lower, and the heat inside the transformer can be better conducted out. One side of the heat conducting plate 4 far away from the transformer body 1 is fixedly connected with a heat conducting fin 6.

As shown in fig. 3, the heat-conducting fin 6 is sleeved with the heat-dissipating shell 7, and the heat-dissipating shell 7 is made of an aluminum alloy material, so that the heat-conducting fin 6 inside is protected conveniently, and the structural strength of the heat-conducting fin is improved. The cavity has been seted up to heat dissipation shell 7 inside, and conducting strip 6 and cavity inner wall fixed connection through cup jointing heat dissipation shell 7 in the 6 outsides of conducting strip, not only can come out the heat conduction of conducting strip 6, play the guard action to conducting strip 6 moreover, improve ultra-thin conducting strip 6's structural strength. Through-hole 8 has been seted up to heat dissipation shell 7 inside, and through-hole 8 is provided with nine, and nine through-holes 8 are the rectangular array setting, are convenient for dispel the heat to heat-conducting plate 4.

When the heat-conducting plate is used, heat in the transformer is conducted to the external heat-conducting fins 6 through the heat-conducting plate 4 made of graphene, the heat-conducting fins 6 transmit part of heat to the external heat-radiating shell 7, and the heat is conveniently and rapidly radiated through the heat-conducting fins 6 and the heat-radiating shell 7 positioned outside the transformer.

Meanwhile, the top end and the bottom of the transformer are respectively provided with the heat dissipation window 3, so that dust in the environment can be reduced to enter the transformer for accumulation, the air flowing speed in the transformer is increased, and better heat dissipation is facilitated.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes performed by the present specification and drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A dry-type transformer comprising a transformer body (1), characterized in that: the top and the bottom of the side wall of the transformer main body (1) are both provided with heat dissipation windows (3), and the middle parts of the four outer side walls are fixedly connected with heat dissipation assemblies (2);

the radiating component (2) comprises a heat conducting plate (4), one side of the heat conducting plate (4), which is far away from the transformer main body (1), is fixedly connected with a heat conducting fin (6), the heat conducting fin (6) is sleeved with a radiating shell (7), and a through hole (8) is formed in the radiating shell (7).

2. A dry-type transformer as claimed in claim 1, wherein: the dustproof net is fixedly connected with the interior of the heat dissipation window (3) in an embedded mode.

3. A dry-type transformer as claimed in claim 1, wherein: a plurality of mounting holes (5) are formed in the heat conducting plate (4), and the heat conducting plate (4) is fixed with the inner side wall of the transformer main body (1) through bolts.

4. A dry-type transformer as claimed in claim 1, wherein: the heat conducting plate (4) is made of graphene.

5. A dry-type transformer as claimed in claim 1, wherein: the heat dissipation shell (7) is internally provided with a cavity, and the heat conducting fins (6) are fixedly connected with the inner wall of the cavity.

6. A dry-type transformer as claimed in claim 1, wherein: the heat dissipation shell (7) is made of aluminum alloy.

7. A dry-type transformer as claimed in claim 1, wherein: nine through holes (8) are arranged, and nine through holes (8) are arranged in a rectangular array.