CN211125253U

CN211125253U - Heat dissipation shell for transformer

Info

Publication number: CN211125253U
Application number: CN202020130020.1U
Authority: CN
Inventors: 李先明
Original assignee: Sichuan Zhongxin General Electric Power Co ltd
Current assignee: Sichuan Zhongxin General Electric Power Co ltd
Priority date: 2020-01-20
Filing date: 2020-01-20
Publication date: 2020-07-28
Anticipated expiration: 2030-01-20

Abstract

The utility model discloses a heat dissipation shell for transformer, including shell body, interior casing, upper connecting block and lower connecting block, because there is the clearance between interior casing and the shell body, and upper and lower not complete sealing connection, form the air convection and advance and evacuate the heat, the circulating pump jumps out the coolant liquid from the storage water tank and flows along the circulation of circulating cooling tube, because the circulation cooling tube contacts with the heat dissipation ring, and then can accelerate the heat evacuation of heat dissipation ring, further improve the radiating effect of shell body, when the heat dissipation structure goes wrong, only need to unscrew the mounting screw and demolish the upper connecting block, can take off the shell body and overhaul heat dissipation ring or circulation cooling tube cooling zone, convenient and fast; meanwhile, the transformer shell can be installed in a layered and step-by-step mode when being installed by adopting a mode that the outer shell and the inner shell are connected through the upper connecting block which can be detachably connected and the lower connecting block which is clamped, so that the transformer shell is convenient to disassemble and assemble.

Description

Heat dissipation shell for transformer

Technical Field

The utility model relates to a transformer housing especially relates to a heat dissipation casing for transformer.

Background

A Transformer (Transformer) is a device that changes an alternating-current voltage by using the principle of electromagnetic induction, and main components are a primary coil, a secondary coil, and an iron core (magnetic core). The main functions are as follows: voltage transformation, current transformation, impedance transformation, isolation, voltage stabilization (magnetic saturation transformer), and the like. According to the application, the method can be divided into: power transformers and special transformers (furnace transformers, rectification transformers, power frequency test transformers, voltage regulators, mining transformers, audio transformers, intermediate frequency transformers, high frequency transformers, impact transformers, instrument transformers, electronic transformers, reactors, mutual inductors, etc.). The circuit symbols are usually T as the beginning of the numbering, e.g., T01, T201, etc.

The existing transformer shell is unreasonable in structural design, poor in heat dissipation effect, troublesome in dismounting and mounting of the transformer shell and not beneficial to overhaul of workers.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a transformer is with heat dissipation casing to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a heat dissipation casing for transformer, includes shell body, interior casing, goes up connecting block and lower connecting block, there is the clearance between shell body outside and shell body and the interior casing including the shell body sets up, and shell body and interior casing top can dismantle the connection through a plurality of connecting blocks of going up, and shell body and interior casing bottom are through a plurality of connecting block joints down, a plurality of cooling rings are installed along interior casing the central axis in the interior casing outside, and are a plurality of the cooling ring edge interlude has the circulative cooling pipe, shell body outside is provided with circulating pump and storage water tank, circulative cooling pipe, circulating pump and storage water tank pass through.

And the upper connecting blocks and the lower connecting blocks are distributed in an array along the central axis of the inner shell.

Go up connecting block both ends and lead to there being first screw hole, shell body and interior casing top all lead to a plurality of second screw holes that match with first screw hole.

The connecting structure is characterized in that a plurality of outer lugs are arranged at the bottom of the outer shell, a plurality of inner lugs are arranged at the bottom of the inner shell, an outer groove and an inner groove are communicated on the lower connecting block, the outer lugs and the outer groove are matched, and the inner lugs and the inner grooves are matched.

The radiating ring comprises a radiating outer ring and radiating fins, the radiating outer ring is arranged in a gap between the inner shell and the outer shell, a plurality of radiating fins are arranged on the inner side of the radiating outer ring, and the tail ends of the radiating fins are connected with the inner shell.

The edge of the heat dissipation outer ring is provided with a plurality of pipe winding holes, and the pipe winding holes are matched with the circulating cooling pipe.

The utility model has the advantages that:

1. because there is the clearance between interior casing and the shell body, and not complete sealing connection from top to bottom, form the air convection and advance and evacuate the heat, the circulating pump jumps out the coolant liquid from the storage water tank and flows along circulation cooling tube circulation, because circulation cooling tube and heat dissipation ring contact, and then can accelerate heat evacuation of heat dissipation ring, further improve the radiating effect of casing.

2. When the heat dissipation structure has a problem, the outer shell can be taken down to overhaul the cooling section of the heat dissipation ring or the circulating cooling pipe only by unscrewing the mounting screw and removing the upper connecting block, so that the heat dissipation structure is convenient and quick;

meanwhile, the transformer shell can be installed in a layered and step-by-step mode when being installed by adopting a mode that the outer shell and the inner shell are connected through the upper connecting block which can be detachably connected and the lower connecting block which is clamped, so that the transformer shell is convenient to disassemble and assemble.

Drawings

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

FIG. 2 is a schematic top view of the connection state of the inner housing and the outer housing of the present invention;

FIG. 3 is an enlarged view of a portion of the structure of FIG. 1;

fig. 4 is a schematic structural view of the middle and lower connecting block of the present invention;

fig. 5 is a schematic structural view of the middle heat dissipating ring of the present invention.

In the figure, an outer shell 1, an outer convex block 11, an inner shell 2, an inner convex block 21, an upper connecting block 3, a mounting screw 31, a lower connecting block 4, an outer groove 41, an inner groove 42, a radiating ring 5, a radiating outer ring 51, a radiating fin 52, a pipe winding hole 511, a water inlet section 6-1, a cooling section 6-2, a water outlet section 6-3, a circulating pump 7 and a water storage tank 8.

Detailed Description

The technical solution of the present invention is described in further detail below with reference to the accompanying drawings, but the scope of the present invention is not limited to the following description.

Referring to fig. 1 to 5, an embodiment of the present invention provides a heat dissipation housing for a transformer, including an outer housing 1, an inner housing 2, an upper connection block 3 and a lower connection block 4, where the outer housing 1 is disposed outside the inner housing 2 and a gap (a passage for air convection) exists between the outer housing 1 and the inner housing 2, tops of the outer housing 1 and the inner housing 2 are detachably connected by a plurality of upper connection blocks 3 distributed in an array along a central axis of the inner housing 2 (two ends of the upper connection blocks 3 are communicated with first threaded holes, tops of the outer housing 1 and the inner housing 2 are both communicated with a plurality of second threaded holes matching with the first threaded holes, referring to fig. 2, tops of the outer housing 1 and the inner housing 2 are fastened by;

outer casing 1 and interior casing 2 bottom are the 4 joints of lower connecting block that the array distributes through a plurality of interior casing 2 central axes of following, outer casing 1 bottom is provided with a plurality of outer lugs 11, and interior casing 2 bottom is provided with a plurality of interior lugs 21, it has outer recess 41 and inner groovy 42 to lead to on the connecting block 4 down, outer lug 11 matches the setting with outer recess 41, and interior lug 21 matches the setting with inner groovy 42 (refer to fig. 3).

The outer shell body 1 and the inner shell body 2 are integrally arranged on a support frame S of the transformer, the support frame S is I-shaped (refer to the dotted line part in figure 1), the support frame S is formed by splicing three sections, the middle part of the support frame S is an iron core installation part (namely, the inner side of the inner shell body 2), the bottom of the lower connecting block 4 is fixedly connected with the support frame S, and the top of the upper connecting block 3 and the support frame S have a gap in the vertical direction.

A plurality of radiating rings 5 (integrated into one piece) are installed along interior 2 the central axis in the casing 2 outside in, radiating ring 5 is including heat dissipation outer loop 51 and fin 52, in the clearance between casing 2 and shell body 1 including heat dissipation outer loop 51 sets up, heat dissipation outer loop 51 inboard is provided with a plurality of fins 52, fin 52 end and interior casing 2 be connected (can adopt the welded mode to make fin and interior casing 2 outer wall fixed), refer to fig. 5.

The edge of the heat dissipation outer ring 51 is provided with a plurality of pipe winding holes 511, the pipe winding holes 511 are matched with a circulating cooling pipe, referring to fig. 5 and fig. 1 (the pipe insertion in fig. 1 is only schematic), the circulating cooling pipe is divided into a water inlet section 6-1, a cooling section 6-2 and a water outlet section 6-3, the water inlet section 6-1 penetrates through the outer shell 1, the cooling section 6-2 penetrates through the plurality of pipe winding holes 511 which are coaxial from top to bottom, then penetrates out from the plurality of pipe winding holes 511 which are coaxial and adjacent in the anticlockwise direction from bottom to top, and then penetrates through all the pipe winding holes 511 (the insertion of the circulating cooling pipe refers to the dotted part in fig. 5) finally the water outlet section 6-3 penetrates out.

The top of the support frame S is provided with a circulating pump 7 and a water storage tank 8, the water storage tank 8 is internally provided with cooling liquid, and the circulating cooling pipe, the circulating pump 7 and the water storage tank 8 are communicated through a pipeline to form a circulating loop, referring to figure 1.

The cooling principle is as follows:

the heat that transformer core and coil produced is derived to circumference through fin 52 on the interior casing 2 to because there is the clearance between interior casing 2 and the shell body 1, and not complete sealing connection from top to bottom, form the air convection and advance and sparse heat, circulating pump 7 jumps out the coolant liquid along the circulation cooling tube circulation flow in from storage water tank 8, because circulation cooling tube and the contact of cooling ring 5, and then can accelerate the heat evacuation of cooling ring 5, further improve the radiating effect of casing.

When the heat dissipation structure has problems, the outer shell 1 can be taken down to overhaul the heat dissipation ring 5 or the cooling section 6-2 of the circulating cooling pipe only by unscrewing the mounting screws 31 and removing the upper connecting blocks 3, and the heat dissipation structure is convenient and quick.

Meanwhile, the transformer shell can be installed in a layered and step-by-step mode when being installed by adopting a mode that the outer shell 1 and the inner shell 2 are connected through the upper connecting block 3 which is detachably connected and the lower connecting block 4 which is clamped, so that the transformer shell is convenient to disassemble and assemble.

The installation principle is as follows: firstly, positioning an iron core and a coil, placing a lower connecting block around the iron core and the coil according to a drawing, clamping an inner shell 2 (a radiating ring 5), inserting a circulating cooling pipe into an outer shell 1, completing insertion and clamping with a pipe winding hole 511, fastening an upper connecting block 3, fixing the upper part of a support frame S, and communicating a circulating loop.

The foregoing is illustrative of the preferred embodiments of the present invention, and it is to be understood that the invention is not limited to the precise forms disclosed herein, and that various other combinations, modifications, and environments may be resorted to, falling within the scope of the invention as defined by the appended claims. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.

Claims

1. A heat dissipation shell for a transformer is characterized by comprising an outer shell (1), an inner shell (2), an upper connecting block (3) and a lower connecting block (4), the outer shell (1) is arranged on the outer side of the inner shell (2), a gap is formed between the outer shell (1) and the inner shell (2), the tops of the outer shell (1) and the inner shell (2) are detachably connected through a plurality of upper connecting blocks (3), the bottoms of the outer shell (1) and the inner shell (2) are clamped through a plurality of lower connecting blocks (4), a plurality of heat dissipation rings (5) are arranged on the outer side of the inner shell (2) along the central axis of the inner shell (2), a circulating cooling pipe is inserted into the edges of the heat dissipation rings (5), a circulating pump (7) and a water storage tank (8) are arranged outside the outer shell (1), the circulating cooling pipe, the circulating pump (7) and the water storage tank (8) are communicated through pipelines to form a circulating loop.

2. The heat dissipation shell for the transformer according to claim 1, wherein a plurality of the upper connection blocks (3) and a plurality of the lower connection blocks (4) are distributed in an array along the central axis of the inner shell (2).

3. The heat dissipation shell for the transformer as recited in claim 1, wherein first threaded holes are formed at two ends of the upper connecting block (3), and a plurality of second threaded holes matched with the first threaded holes are formed at the top of each of the outer shell (1) and the inner shell (2).

4. The heat dissipation shell for the transformer according to claim 1, wherein a plurality of outer protrusions (11) are arranged at the bottom of the outer shell (1), a plurality of inner protrusions (21) are arranged at the bottom of the inner shell (2), an outer groove (41) and an inner groove (42) are formed in the lower connecting block (4), the outer protrusions (11) and the outer groove (41) are arranged in a matching manner, and the inner protrusions (21) and the inner grooves (42) are arranged in a matching manner.

5. The heat dissipation shell for the transformer according to claim 1, wherein the heat dissipation ring (5) comprises a heat dissipation outer ring (51) and heat dissipation fins (52), the heat dissipation outer ring (51) is arranged in a gap between the inner shell (2) and the outer shell (1), a plurality of heat dissipation fins (52) are arranged on the inner side of the heat dissipation outer ring (51), and the tail ends of the heat dissipation fins (52) are connected with the inner shell (2).

6. The heat dissipation shell for the transformer according to claim 5, wherein the heat dissipation outer ring (51) is provided with a plurality of pipe winding holes (511) at the edge, and the pipe winding holes (511) are matched with the circulating cooling pipes.