CN217690721U - Heat dissipation shell of fully-closed dry-type transformer - Google Patents
Heat dissipation shell of fully-closed dry-type transformer Download PDFInfo
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- CN217690721U CN217690721U CN202221873576.5U CN202221873576U CN217690721U CN 217690721 U CN217690721 U CN 217690721U CN 202221873576 U CN202221873576 U CN 202221873576U CN 217690721 U CN217690721 U CN 217690721U
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Abstract
The utility model belongs to the field of transformer heat dissipation, and provides a heat dissipation shell of a fully-enclosed dry-type transformer, which comprises a transformer shell and an installation bottom plate, wherein the installation bottom plate is connected with the lower part of the transformer shell, and the transformer shell is used for protecting a transformer iron core and a transformer coil; inside several heat dissipation pipes that are equipped with of transformer housing, the heat dissipation pipe gets into inside then wears out from transformer housing upper end to transformer housing from transformer housing length direction terminal surface, be used for conducting the inside heat of transformer housing to transformer housing outside along the heat dissipation pipe, because this equipment is equipped with several heat dissipation pipes, the inside heat of transformer housing is conducted to the air in the heat dissipation pipe through heat dissipation pipe arm, then the hot-air in the heat dissipation pipe forms the heat transfer based on chimney effect with outside cold air in the heat dissipation pipe, thereby reduce the inside temperature of transformer housing, reach the purpose that improves the radiating effect.
Description
Technical Field
The utility model belongs to transformer heat dissipation field especially relates to a totally enclosed dry-type transformer's heat dissipation casing.
Background
The totally-enclosed dry-type transformer is a voltage conversion device which works in the severe environment of coal mines, mines and the like and takes air or inert gas as a core heat dissipation medium, and the shell of the transformer needs to have a protection grade above IP54 so as to prevent water, dust and corrosive gas from entering the box body. The transformer is a heat dissipation scheme that inert gas or air is adopted in the shell, air is adopted outside the shell as a heat dissipation medium, and natural heat transfer is taken as a path, so that the heat dissipation efficiency of the transformer is closely related to the design of the shell. The existing shell design mainly adopts a scheme of side sawtooth or wave design and top arch dome, the design mainly uses heat conduction as a main heat dissipation principle, and the heat dissipation efficiency is maximized by enlarging the heat dissipation area as much as possible.
The design of the side increase area of contact is mainly adopted in the prior art to utilize heat conduction's mode to dispel the heat, but this kind of mode effect on the promotion of radiating efficiency is very little, leads to the radiating efficiency not enough.
SUMMERY OF THE UTILITY MODEL
The utility model provides a totally enclosed dry-type transformer's heat dissipation casing aims at solving the main adoption of prior art who proposes in the background art at side increase area of contact's design to utilize heat-conductive mode to dispel the heat, but the effect of this kind of mode on radiating efficiency's promotion is very little, leads to the not enough problem of radiating efficiency.
In a first aspect, the present application provides a heat dissipation housing for a fully-enclosed dry-type transformer, comprising:
the transformer comprises a transformer shell and a mounting bottom plate, wherein the mounting bottom plate is connected with the lower part of the transformer shell, and the transformer shell is used for protecting a transformer core and a transformer coil;
the transformer shell is internally provided with a plurality of heat dissipation guide pipes, the heat dissipation guide pipes enter the transformer shell from the end faces of the length direction of the transformer shell and then penetrate out of the upper end of the transformer shell, and heat inside the transformer shell is conducted to the outside of the transformer shell along the heat dissipation guide pipes.
Optionally, the heat dissipation conduit has a thin-walled structure, and a conduit through hole is arranged in the heat dissipation conduit in a through manner.
Optionally, the side wall of the transformer housing in the width direction is provided with a mounting through hole for mounting a transformer wire.
Optionally, a plurality of first heat dissipation grooves are respectively arranged above and below the installation through hole, and a second heat dissipation groove is arranged on the side wall of the transformer shell in the length direction and used for increasing the heat dissipation area of the transformer shell.
Optionally, a sealing rubber ring is arranged on the inner side wall of the installation through hole, the outer layer of the sealing rubber ring is tightly attached to the inner wall of the installation through hole, and the inner layer of the sealing rubber ring is tightly attached to the sealing pipeline and used for sealing the transformer.
Optionally, the end parts of the two ends of the heat dissipation conduit are detachably provided with air accelerating assemblies;
the air accelerating assembly comprises an accelerating fan positioned at the bottom port of the heat dissipation pipe and a protective cover positioned at the top port of the heat dissipation pipe.
Optionally, the accelerating fan includes a fan main body for accelerating the circulation speed of air in the heat dissipation pipe, and a heat dissipation pipe sleeve is arranged at the tail end of the fan main body and connected with a port at the bottom of the heat dissipation pipe.
Optionally, the heat dissipation pipe is connected with the acceleration fan by bolts.
Optionally, the protective cover includes: the safety cover body is located inside safety cover centre bore, space bar and the overhead gage of safety cover body, the safety cover body deviates from the one end of heat dissipation pipe is equipped with several the space bar, the space bar deviates from the one end of safety cover centre bore is equipped with the overhead gage.
In a second aspect, the present application provides a totally enclosed dry-type transformer including the heat dissipating housing of the enclosed dry-type transformer of the first aspect
About implementing the utility model discloses a beneficial technological effect does: because the equipment is provided with a plurality of heat dissipation pipes, the heat inside the transformer shell is conducted to the air in the heat dissipation pipes through the heat dissipation pipe arms, and then the hot air in the heat dissipation pipes and the external cold air form heat transfer based on chimney effect in the heat dissipation pipes, so that the temperature inside the transformer shell is reduced, and the purpose of improving the heat dissipation effect is achieved.
Drawings
FIG. 1 is a schematic view of the installation of the present invention;
fig. 2 is a schematic diagram of the transformer housing and the heat dissipation pipe according to the present invention;
fig. 3 is a sectional view of the transformer case with the heat dissipating pipe according to the present invention;
FIG. 4 is a schematic view of an accelerating fan according to the present invention;
fig. 5 is a schematic view of the protective cover of the present invention.
In the figure: 1. a transformer housing; 101. mounting through holes; 102. a second heat sink; 103. a first heat sink; 2. mounting a bottom plate; 3. a heat dissipation conduit; 301. a conduit through hole; 4. accelerating the fan; 401. a fan main body; 402. a heat-dissipating conduit sleeve; 5. a protective cover; 501. a central bore of the protective cover; 502. a partition plate; 503. a top baffle.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
A first aspect of an embodiment of the present application provides a heat dissipation housing of a fully-enclosed dry-type transformer, including:
the transformer comprises a transformer shell 1 and an installation bottom plate 2, wherein the installation bottom plate 2 is connected with the lower part of the transformer shell 1, and the transformer shell 1 is used for protecting a transformer iron core and a transformer coil;
inside several heat dissipation pipes 3 that are equipped with of transformer housing 1, heat dissipation pipe 3 enters into transformer housing 1 inside then wears out from transformer housing 1 upper end from 1 length direction terminal surface of transformer housing for conduct 1 outside to transformer housing 1 along heat dissipation pipe 3 with the inside heat of transformer housing 1.
The chimney effect is an excellent heat dissipation mode in the aspect of improving the heat dissipation efficiency, natural circulation of air is achieved by utilizing the air density difference between high temperature and low temperature in a vertical space, the air density with high temperature is low and rises, the air density with low temperature is high and is filled below, so that the heat transfer efficiency of heat convection is improved, and the heat dissipation conduit 3 in the equipment serves as a chimney of the transformer shell 1 and is used for achieving the heat dissipation mode based on the chimney effect.
According to the embodiment of the present application, the number of heat dissipation pipes 3, preferably, symmetrically arranged in the length direction of the transformer housing 1, may be 2, 4, 6, etc.
Preferably, the material of the transformer housing 1 is selected from iron, stainless steel or their combination, any material that can realize heat dissipation and includes the inside of the housing, and preferably alloy material can be used in the present application.
In some embodiments, the heat dissipation pipe 3 is a thin-walled structure, and the pipe through hole 301 is formed through the inside.
Because the heat dissipation pipe 3 needs to discharge the heat inside the transformer housing 1 along the extending direction thereof, the heat dissipation pipe 3 adopts a thin-wall structure, which is beneficial for the heat inside the transformer housing 1 to enter the heat dissipation pipe 3.
In some embodiments, the side walls of the transformer housing 1 in the width direction are provided with mounting through holes 101 for mounting transformer wires.
Preferably, the two mounting through holes 101 may be circular or hexagonal, and any shape that facilitates mounting of the transformer wires and the sealing may be used in the present embodiment.
In some embodiments, a plurality of first heat dissipation grooves 103 are respectively disposed above and below the mounting through hole 101, and second heat dissipation grooves 102 are disposed on the side wall of the transformer housing 1 in the length direction for increasing the heat dissipation area of the transformer housing 1
The second heat dissipation groove 102 and the first heat dissipation groove 103 may be disposed in a vertical direction, may also be disposed in a horizontal direction, or may be disposed in an oblique direction, and preferably, the second heat dissipation groove 102 and the first heat dissipation groove 103 are disposed in the vertical direction.
In some embodiments, the inner side wall of the installation through hole 101 is provided with a sealing rubber ring, the outer layer of the sealing rubber ring is tightly attached to the inner wall of the installation through hole 101, and the inner layer of the sealing rubber ring is tightly attached to the sealing pipeline for sealing the transformer.
And a sealing rubber ring is arranged on the inner side of the installation through hole 101, the outer layer of the sealing rubber ring is tightly attached to the inner wall of the installation through hole 101, and the inner layer of the sealing rubber ring is tightly attached to a sealing pipeline and used for sealing the inside of the transformer shell 1.
In some embodiments, the end parts of the two ends of the heat dissipation conduit 3 are detachably provided with air accelerating components; the air accelerating assembly comprises an accelerating fan 4 at the bottom port of the heat dissipating duct 3 and a protecting cover 5 at the top port of the heat dissipating duct 3.
The fan 4 can accelerate the circulation of air in the heat dissipation pipe 3, and in time bring out heat in the heat dissipation pipe 3, improves the heat dissipation of the heat dissipation pipe 3, and the fan 4 can operate continuously or intermittently, preferably intermittently, so as to fully exert the cooling effect of the chimney effect.
The protective cover 5 can prevent external foreign substances from falling into the heat dissipation duct 3, causing the heat dissipation duct 3 to be clogged, thereby affecting the heat dissipation performance of the heat dissipation duct 3.
In some embodiments, the accelerating fan 4 includes a fan main body 401 for accelerating the circulation speed of the air in the heat dissipation duct 3, and a heat dissipation duct sleeve 402 is disposed at the end of the fan main body 401 for connecting with the bottom port of the heat dissipation duct 3.
In some embodiments, the heat dissipation duct 3 is connected to the acceleration fan 4 by bolts.
The heat dissipation pipe 3 and the accelerating fan 4 are connected through bolts, the bolt connection stability is high, and the disassembly is convenient, so that the later-stage use is facilitated to detect and maintain.
In some embodiments, the protective cover 5 comprises: the heat dissipation pipe 3 comprises a protection cover body, a protection cover central hole 501, partition plates 502 and a top baffle 503, wherein the protection cover central hole, the partition plates 502 and the top baffle 503 are arranged inside the protection cover body, a plurality of partition plates 502 are arranged at one end, deviating from the heat dissipation pipe 3, of the protection cover body, and the top baffle 503 is arranged at one end, deviating from the protection cover central hole 501, of the partition plates 502.
Preferably, the cooperation mode of heat dissipation pipe 3 and safety cover 5 is interference fit, and interference fit stability is high, prevents to think the reason because of transport etc. and leads to safety cover 5 to drop, influences the protection to heat dissipation pipe 3.
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
Embodiments of a second aspect of the present application provide a fully-enclosed dry-type transformer, comprising a heat-dissipating housing of the enclosed dry-type transformer of the first aspect
Example one
As shown in fig. 1-3, the present apparatus provides a solution.
The utility model provides a totally enclosed dry-type transformer's heat dissipation casing which characterized in that includes:
the transformer comprises a transformer shell 1 and an installation bottom plate 2, wherein the installation bottom plate 2 is positioned below the transformer shell 1, the installation bottom plate 2 is used for installing a transformer, and the transformer shell 1 is used for protecting the transformer;
the transformer casing 1 is internally provided with a plurality of heat dissipation pipes 3, and the heat dissipation pipes 3 extend to the inside of the transformer casing 1 from the end surface of the transformer casing 1 in the length direction and penetrate out from the upper end of the transformer casing 1, so that the heat inside the transformer casing 1 is conducted to the outside of the transformer casing 1 along the heat dissipation pipes 3.
The heat dissipation pipe 3 is of a thin-wall structure, and a pipe through hole 301 is formed in the heat dissipation pipe.
The lateral wall of the width direction of the transformer shell 1 is provided with a mounting through hole 101 for mounting a transformer wire, a first heat dissipation groove 103 is arranged above and below the mounting through hole 101 for increasing the heat dissipation area of the lateral wall of the transformer shell 1, and a second heat dissipation groove 102 is arranged on the end face of the length direction of the transformer shell 1 for increasing the heat dissipation area of the end face of the transformer shell 1.
And a sealing rubber ring is arranged on the inner side wall of the installation through hole 101, the outer layer of the sealing rubber ring is tightly attached to the inner wall of the installation through hole 101, and the inner layer of the sealing rubber ring is tightly attached to a sealing pipeline for sealing the transformer.
Before the transformer mounting device is used, firstly, a transformer to be used is mounted on the upper end face of a mounting base plate 2, then a transformer shell 1 provided with a plurality of heat dissipation pipes 3 is placed above the mounting base plate 2 in advance, then wires of the transformer penetrate out of a mounting through hole 101, then the mounting through hole 101 is sealed by a sealing pipeline to isolate air inside and outside the transformer shell 1, then the mounting base plate 2 and the transformer shell 1 are connected by bolts, and finally, an external power supply is connected with the transformer to be used.
During the use, switch on external power source makes the transformer begin work, along with the work of transformer, 1 inside heat that begins to produce of transformer casing, the wall pipe that the heat was through heat dissipation pipe 3 this moment is in heat transfer mode transmission to heat dissipation pipe 3 inside air, heat dissipation pipe 3 inside air is heated the inflation and along heat dissipation pipe 3 upward movement, then contact with the cold air of heat dissipation pipe 3 top, produce the heat transfer effect, thereby reduce the temperature, then through the cooling after original hot air become the cold air and fall back to heat dissipation pipe 3 again, thereby guarantee that heat dissipation pipe 3 cavity temperature is lower, thereby improve transformer casing 1's radiating effect.
Example two
As shown in fig. 4 to 5, the present apparatus is provided with a plurality of heat dissipation pipes 3 inside the transformer housing 1 based on the chimney effect, and discharges the heat inside the transformer housing 1 through the heat dissipation pipes 3, but since the apparatus is often used in harsh environments such as coal mines and mines, the air circulation is poor, and it is difficult to provide sufficient air circulation for the heat dissipation pipes 3, the second embodiment is proposed based on the first embodiment.
Before the transformer is used, firstly, a transformer to be used is installed on the upper end face of an installation bottom plate 2, then a transformer shell 1 provided with a plurality of heat dissipation guide pipes 3 is placed above the installation bottom plate 2 in advance, then wires of the transformer penetrate out of an installation through hole 101, then the installation through hole 101 is sealed by a sealing pipeline to isolate air inside and outside the transformer shell 1, then the installation bottom plate 2 and the transformer shell 1 are connected well by bolts, then an accelerating fan 4 is installed at the bottom port of the heat dissipation guide pipes 3, then a protective cover 5 is installed at the top port of the heat dissipation guide pipes 3, and finally, an external power supply and an external control device are connected with the accelerating fan 4, a transformer iron core and a transformer coil, so that the transformer can be used.
During the use, switch on external power makes the transformer begin work, along with the work of transformer, transformer housing 1 is inside to begin to produce the heat, the heat transmits to the inside air of heat dissipation pipe 3 with the heat transfer mode through the wall pipe of heat dissipation pipe 3 this moment, turn on fan 4 with higher speed afterwards, the inside air of heat dissipation pipe 3 is heated the inflation and moves up along heat dissipation pipe 3 under the action of gravity and fan 4 with higher speed, contact with the cold air of heat dissipation pipe 3 top, produce the heat transfer effect, thereby reduce the temperature, because fan 4 with higher speed is intermittent type formula operation, after the cooling, original hot air becomes in the cold air after the cooling back fall back again to heat dissipation pipe 3 under the action of gravity, thereby guarantee that heat dissipation pipe 3 hollow air temperature is lower, thereby improve transformer housing 1's radiating effect.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The utility model provides a totally enclosed dry-type transformer's heat dissipation casing which characterized in that includes:
the transformer comprises a transformer shell (1) and a mounting bottom plate (2), wherein the mounting bottom plate (2) is connected with the lower part of the transformer shell (1), and the transformer shell (1) is used for protecting a transformer core and a transformer coil;
the transformer casing (1) is inside to be equipped with several heat dissipation pipe (3), follow heat dissipation pipe (3) transformer casing (1) length direction terminal surface enters into to inside then follow of transformer casing (1) upper end is worn out, be used for with transformer casing (1) inside heat is followed heat dissipation pipe (3) conduction extremely transformer casing (1) outside.
2. The heat dissipating housing of a totally enclosed dry transformer as claimed in claim 1, wherein the heat dissipating pipe (3) is of thin-walled structure with a pipe through hole (301) formed therethrough.
3. The heat dissipation casing of the totally enclosed dry-type transformer as claimed in claim 1, wherein the transformer casing (1) has mounting through holes (101) on its side wall in the width direction for mounting transformer wires.
4. The heat dissipation casing of the totally enclosed dry-type transformer according to claim 3, wherein a plurality of first heat dissipation grooves (103) are respectively formed above and below the installation through hole (101), and a second heat dissipation groove (102) is formed on a side wall of the transformer casing (1) in a length direction for increasing a heat dissipation area of the transformer casing (1).
5. The heat dissipation casing of the totally enclosed dry-type transformer as claimed in claim 3, wherein the inner side wall of the installation through hole (101) is provided with a sealing rubber ring, the outer layer of the sealing rubber ring is tightly attached to the inner wall of the installation through hole (101), and the inner layer of the sealing rubber ring is tightly attached to the sealing pipeline for sealing the transformer.
6. The heat dissipation casing of a totally enclosed dry-type transformer as claimed in claim 1, wherein the heat dissipation duct (3) is detachably provided with air accelerating components at both ends;
the air acceleration assembly comprises an acceleration fan (4) positioned at the bottom port of the heat dissipation guide pipe (3) and a protection cover (5) positioned at the top port of the heat dissipation guide pipe (3).
7. The heat dissipation casing of the totally enclosed dry-type transformer as claimed in claim 6, wherein said accelerating fan (4) comprises a fan body (401) for accelerating the circulation speed of air in said heat dissipation duct (3), and a heat dissipation duct sleeve (402) is provided at the end of said fan body (401) for connecting with the bottom port of said heat dissipation duct (3).
8. The heat dissipation casing of the totally enclosed dry-type transformer as claimed in claim 7, wherein the heat dissipation duct (3) is connected to the accelerating fan (4) by bolts.
9. -the heat-dissipating casing of a totally enclosed dry transformer according to claim 6, characterized in that the protective cover (5) comprises: the safety cover comprises a safety cover body, wherein a safety cover central hole (501), a spacing plate (502) and a top baffle plate (503) are arranged inside the safety cover body, the safety cover body deviates from one end of the heat dissipation pipe (3) and is provided with a plurality of spacing plates (502), the spacing plate (502) deviates from one end of the safety cover central hole (501) is provided with the top baffle plate (503).
10. A fully encapsulated dry transformer, characterized in that it comprises a heat dissipating housing of a hermetically encapsulated dry transformer according to any of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221873576.5U CN217690721U (en) | 2022-07-19 | 2022-07-19 | Heat dissipation shell of fully-closed dry-type transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221873576.5U CN217690721U (en) | 2022-07-19 | 2022-07-19 | Heat dissipation shell of fully-closed dry-type transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217690721U true CN217690721U (en) | 2022-10-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221873576.5U Active CN217690721U (en) | 2022-07-19 | 2022-07-19 | Heat dissipation shell of fully-closed dry-type transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217690721U (en) |
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2022
- 2022-07-19 CN CN202221873576.5U patent/CN217690721U/en active Active
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