CN212676046U

CN212676046U - Dry-type transformer with forced air cooling

Info

Publication number: CN212676046U
Application number: CN202021598573.6U
Authority: CN
Inventors: 刘军; 霍正琴
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-08-04
Filing date: 2020-08-04
Publication date: 2021-03-09
Anticipated expiration: 2030-08-04

Abstract

The utility model discloses a dry-type transformer of forced air cooling in area relates to transformer cooling technical field, including support, transformer main part and air cooling device, the transformer main part is installed between the support, the air cooling device sets up under the bottom of transformer main part, this transformer main part can slow down the rising speed of transformer during operation temperature through the cooling layer of big specific heat capacity material preparation, maintains the transformer at reasonable operating temperature for a long time, and the wind-guiding groove that the fin formed also does benefit to the thermal emission of transformer in addition, realizes the rapid cooling of transformer, and the air cooling device utilizes the design of guide duct can be better concentrates the transformer with the wind that the fan blew off, increases effectual heat dissipation wind-force under the condition that does not change fan power, better more quick to the transformer cooling.

Description

Dry-type transformer with forced air cooling

Technical Field

The utility model relates to a transformer cooling technical field specifically is a dry-type transformer of forced air cooling in area.

Background

The transformer can generate a large amount of heat during operation to cause the temperature to rise rapidly, and the overhigh temperature not only can influence the working effect of the transformer, but also can cause certain potential safety hazard, so that the temperature of the transformer needs to be controlled during operation, and the transformer is always kept at a proper working temperature.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a take forced air cooling's dry-type transformer possesses the advantage that reduces transformer operating temperature, has solved the too high problem of transformer during operation temperature.

The utility model discloses a solve above-mentioned technical problem, provide following technical scheme: a dry-type transformer with forced air cooling comprises supports, a transformer main body and an air cooling device, wherein the transformer main body is arranged between the supports, and the air cooling device is arranged right below the bottom of the transformer main body; the support comprises a top connecting rod, a bottom fixing rod, a guide rail and a fixing groove, the top connecting rod is arranged right above the transformer main body and is used for connecting each transformer, the upper surface of the bottom fixing rod is fixedly connected with the lower surface of the transformer main body, the lower surface of the bottom fixing rod is connected with the guide rail, a buckle is arranged on the bottom fixing rod, and the bottom fixing rod and the guide rail are fixed through the matching effect of the buckle and the fixing groove; the transformer main body comprises a shell, an upper cover plate, a lower cover plate, a transformer coil, a cooling layer, a heat dissipation blade, an air guide groove, a vent and a vent hole, wherein the upper cover plate is arranged at the top of the shell, the lower cover plate is arranged at the bottom of the shell, the transformer coil is arranged in the shell, a circle of the cooling layer is wrapped on the periphery of the side face of the transformer coil, a plurality of heat dissipation blades are vertically arranged on the outer side of the cooling layer, the air guide groove is formed between every two heat dissipation blades, the vent hole is formed between the inner surface of the shell and the outer surface of the cooling layer, and the vent hole is formed in the upper cover plate and the lower cover plate; the air cooling device comprises an outer enclosure, an air duct, a cross support, a driving machine, a fan shaft, cooling blades and a connecting rod, wherein two ends of the connecting rod are respectively connected with the outer enclosure and the bottom fixing rod, the air duct is formed inside the outer enclosure, the cross support is arranged at the bottom of the inner surface of the outer enclosure, the driving machine is arranged in the middle of the cross support, the driving machine drives the fan shaft to rotate, and the outer surface of the fan shaft is provided with the cooling blades.

Furthermore, the number of the bottom fixing rods is two, and the bottom fixing rods are arranged in parallel.

Furthermore, the number of the guide rails is two, the guide rails are arranged in parallel, and the two guide rails are arranged at two ends of the bottom fixing rod respectively.

Further, the fixing grooves are arranged at equal intervals along the longitudinal direction of the guide rail.

Furthermore, the cooling layer is made of a material with high specific heat capacity.

Further, the radiating blades are arranged on the side surface of the cooling layer in a circle and are arranged at equal intervals.

Further, the cooling blades are helical blades.

Compared with the prior art, the dry-type transformer with forced air cooling has the following beneficial effects:

1. the utility model discloses a shell, upper cover plate, lower apron, transformer coil, cooling layer, the transformer main part that radiator vane, wind-guiding groove, vent and ventilation hole constitute at first can slow down the rising speed of transformer during operation temperature through the cooling layer of big specific heat capacity material preparation, maintains the transformer at reasonable operating temperature for a long time, and the wind-guiding groove that the fin formed also does benefit to the thermal emission of transformer in addition, realizes the rapid cooling of transformer.

2. The utility model discloses an air cooling device that outer wall, guide duct, cross support, driving machine, fan shaft, cooling blade and connecting rod constitute utilizes the design of guide duct can be better concentrates vertical transformer with the wind that the fan blew off, increases effectual heat dissipation wind-force under the condition that does not change fan power, better more quick to the transformer cooling.

Drawings

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

fig. 2 is a side view of the present invention;

FIG. 3 is a schematic view of the internal structure of the transformer body of the present invention;

fig. 4 is a schematic view of the internal structure of the air cooling device of the present invention.

In the figure: 1-bracket, 101-top connecting rod, 102-bottom fixing rod, 103-guide rail, 104-fixing groove, 2-transformer main body, 201-shell, 202-upper cover plate, 203-lower cover plate, 204-transformer coil, 205-cooling layer, 206-radiating blade, 207-air guiding groove, 208-air vent, 209-air vent, 3-air cooling device, 301-external enclosure, 302-air guiding cylinder, 303-cross support, 304-driving machine, 305-fan shaft and 306-cooling blade.

Detailed Description

Referring to fig. 1-4, the present invention provides a technical solution: a dry-type transformer with forced air cooling comprises supports 1, a transformer main body 2 and an air cooling device 3, wherein the transformer main body 2 is arranged between the supports 1, and the air cooling device 3 is arranged right below the bottom of the transformer main body 2; the bracket 1 comprises a top connecting rod 101, a bottom fixing rod 102, a guide rail 103 and a fixing groove 104, wherein the top connecting rod 101 is arranged right above the transformer main body 2 and is used for connecting each transformer, the upper surface of the bottom fixing rod 102 is fixedly connected with the lower surface of the transformer main body 2, the lower surface of the bottom fixing rod 102 is connected with the guide rail 103, a buckle is arranged on the bottom fixing rod 102, and the bottom fixing rod 102 and the guide rail 103 are fixed through the matching effect of the buckle and the fixing groove 104; the transformer main body 2 comprises a shell 201, an upper cover plate 202, a lower cover plate 203, a transformer coil 204, a cooling layer 205, radiating blades 206, an air guide groove 207, a vent 208 and vent holes 209, wherein the upper cover plate 202 is installed at the top of the shell 201, the lower cover plate 203 is installed at the bottom of the shell 201, the transformer coil 204 is arranged in the shell 201, a circle of cooling layer 205 is wrapped on the periphery of the side surface of the transformer coil 204, a plurality of radiating blades 206 are vertically arranged on the outer side of the cooling layer 205, the air guide groove 207 is formed between each radiating blade 206, the vent 208 is formed between the inner surface of the shell 201 and the outer surface of the cooling layer 205, and the vent holes 209 are formed in the upper cover plate 202 and; the air cooling device 3 comprises an outer enclosure 301, an air duct 302, a cross support 303, a driving machine 304, a fan shaft 305, cooling blades 306 and a connecting rod 307, wherein two ends of the connecting rod 307 are respectively connected with the outer enclosure 301 and the bottom fixing rod 102, the air duct 302 is formed inside the outer enclosure 301, the cross support 303 is installed at the bottom of the inner surface of the outer enclosure 301, the driving machine 304 is arranged in the middle of the cross support 303, the driving machine 304 drives the fan shaft 305 to rotate, and the cooling blades 306 are installed on the outer surface of the fan shaft 305. The number of the bottom fixing rods 102 is two, and the bottom fixing rods are arranged in parallel. The number of the guide rails 103 is two, and the two guide rails 103 are arranged in parallel, and the two guide rails 103 are respectively arranged at two ends of the bottom fixing rod 102. The fixing grooves 104 are arranged at equal intervals in the longitudinal direction of the guide rail 103. The cooling layer 205 is made of a material with high specific heat capacity. The cooling fins 206 are arranged on the side surface of the cooling layer 205 at a circle and are arranged at equal intervals. The cooling blades 306 are helical blades. The transformer main body 2 composed of the shell 201, the upper cover plate 202, the lower cover plate 203, the transformer coil 204, the cooling layer 205, the radiating blades 206, the air guide grooves 207, the ventilation openings 208 and the ventilation holes 209 can slow down the temperature rise speed of the transformer during working through the cooling layer 205 made of a material with large specific heat capacity, the transformer is maintained at a reasonable working temperature for a long time, in addition, the air guide grooves 207 formed by the radiating fins 206 are also beneficial to the heat emission of the transformer, and the rapid cooling of the transformer is realized. The air cooling device 3 formed by the outer enclosure 301, the air duct 302, the cross support 303, the driving machine 304, the fan shaft 305, the cooling blades 306 and the connecting rod 307 can better concentrate the air blown out by the fan to be vertical to the transformer by utilizing the design of the air duct 302, increase effective heat dissipation wind power under the condition of not changing the power of the fan, and better and more quickly cool the transformer.

The transformer of the present invention is a device for changing ac voltage by using the principle of electromagnetic induction, and the 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.).

During the use, the air cooling intensity of certain gear is predetermine according to the behavior of transformer earlier to the staff, then opens air cooling unit 3, utilizes the fan to cool down to transformer main part 2, through the design of air duct 302 of air cooling unit 3, can effectively concentrate the wind that the fan blew off, blows to transformer main part 2 with more powerful heat dissipation wind, cools down to the transformer main part.

To sum up, the transformer main body 2 composed of the housing 201, the upper cover plate 202, the lower cover plate 203, the transformer coil 204, the cooling layer 205, the heat dissipation blades 206, the air guide grooves 207, the ventilation openings 208 and the ventilation holes 209 can slow down the temperature rise speed of the transformer during operation through the cooling layer 205 made of a material with large specific heat capacity, the transformer is maintained at a reasonable working temperature for a long time, and in addition, the air guide grooves 207 formed by the heat dissipation fins 206 are also beneficial to the heat emission of the transformer, so that the rapid cooling of the transformer is realized. The air cooling device 3 formed by the outer enclosure 301, the air duct 302, the cross support 303, the driving machine 304, the fan shaft 305, the cooling blades 306 and the connecting rod 307 can better concentrate the air blown out by the fan to be vertical to the transformer by utilizing the design of the air duct 302, increase effective heat dissipation wind power under the condition of not changing the power of the fan, and better and more quickly cool the transformer.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a dry-type transformer of forced air cooling in area, includes support (1), transformer main part (2) and air cooling device (3), its characterized in that: the transformer main body (2) is arranged between the brackets (1), and the air cooling device (3) is arranged right below the bottom of the transformer main body (2); the support (1) comprises a top connecting rod (101), a bottom fixing rod (102), a guide rail (103) and fixing grooves (104), the top connecting rod (101) is arranged right above the transformer main body (2) and is used for connecting each transformer, the upper surface of the bottom fixing rod (102) is fixedly connected with the lower surface of the transformer main body (2), the lower surface of the bottom fixing rod (102) is connected with the guide rail (103), a buckle is arranged on the bottom fixing rod (102), and the bottom fixing rod (102) and the guide rail (103) are fixed through the matching effect of the buckle and the fixing grooves (104); the transformer main body (2) comprises a shell (201), an upper cover plate (202), a lower cover plate (203), a transformer coil (204), a cooling layer (205), radiating blades (206), an air guide groove (207), a ventilation opening (208) and a ventilation hole (209), the upper cover plate (202) is installed on the top of the shell (201), the lower cover plate (203) is installed on the bottom of the shell (201), the transformer coil (204) is arranged in the shell (201), a circle of cooling layer (205) is wrapped on the periphery of the side surface of the transformer coil (204), a plurality of radiating blades (206) are vertically arranged on the outer side of the cooling layer (205), an air guide groove (207) is formed between each radiating blade (206), the ventilation opening (208) is formed between the inner surface of the shell (201) and the outer surface of the temperature reduction layer (205), the upper cover plate (202) and the lower cover plate (203) are provided with the vent holes (209); the air cooling device (3) comprises an outer enclosure (301), an air duct (302), a cross support (303), a driving machine (304), a fan shaft (305), cooling blades (306) and a connecting rod (307), wherein two ends of the connecting rod (307) are respectively connected with the outer enclosure (301) and the bottom fixing rod (102), the air duct (302) is formed inside the outer enclosure (301), the cross support (303) is installed at the bottom position of the inner surface of the outer enclosure (301), the driving machine (304) is arranged in the middle of the cross support (303), the driving machine (304) drives the fan shaft (305) to rotate, and the outer surface of the fan shaft (305) is provided with the cooling blades (306).

2. A dry-type transformer with forced air cooling as set forth in claim 1, wherein: the number of the bottom fixing rods (102) is two, and the bottom fixing rods are arranged in parallel.

3. A dry-type transformer with forced air cooling as set forth in claim 2, wherein: the number of the guide rails (103) is two, the guide rails are arranged in parallel, and the two guide rails (103) are respectively arranged at two ends of the bottom fixing rod (102).

4. A dry-type transformer with forced air cooling as set forth in claim 3, wherein: the fixing grooves (104) are arranged at equal intervals along the longitudinal direction of the guide rail (103).

5. A dry-type transformer with forced air cooling as set forth in claim 4, wherein: the cooling layer (205) is made of a material with high specific heat capacity.

6. A dry-type transformer with forced air cooling as set forth in claim 5, wherein: the cooling fins (206) are arranged on the side surface of the cooling layer (205) in a circle and are arranged at equal intervals.

7. A dry-type transformer with forced air cooling as set forth in claim 6, wherein: the cooling blades (306) are helical blades.