Air-cooled energy-saving distribution transformer

Abstract

The application provides a forced-air energy-saving distribution transformer, and belongs to the technical field of transformers, which comprises a transformer body, a gas supply assembly and a telescopic exhaust assembly, a plurality of heat dissipation fins are fixedly arranged on the side wall of the transformer body at intervals, a heat dissipation channel is formed between two adjacent groups of heat dissipation fins, the telescopic exhaust assembly is provided with a plurality of groups, the number of the telescopic exhaust assemblies is the same as that of the heat dissipation channels, and the telescopic exhaust assemblies are arranged one by one on the outer sides of the heat dissipation channels. Compared with the prior art, when the heat dissipation fins are cooled by air, the air flow can smoothly enter the heat dissipation fins and uniformly and fully act on the side walls of the heat dissipation fins, so that the flow time of the air flow between the heat dissipation fins is prolonged, the heat dissipation effect of the heat dissipation fins is improved, and uniform heat dissipation of the heat dissipation fins is realized.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of transformers, and particularly relates to a wind-cooled energy-saving distribution transformer. BACKGROUND

[0002] At present, when a transformer is working, a large amount of heat is generated by the iron core and winding of the transformer, the heat is transferred to a plurality of heat dissipation fins outside the transformer body through transformer oil, and then the heat is dissipated to the external environment by the plurality of heat dissipation fins.

[0003] When the external environment temperature is high, the heat on the plurality of heat dissipation fins is difficult to be quickly dissipated, at this time, auxiliary heat dissipation needs to be performed by using a fan, specifically, the fan drives external air to enter between the plurality of heat dissipation fins from one end of the plurality of heat dissipation fins, and then the external air is discharged from the other end of the plurality of heat dissipation fins to take away the heat on the heat dissipation fins, however, on the one hand, when the air flow flows between the heat dissipation fins, the time of the air flow acting on the heat dissipation fins is relatively short, which leads to low heat absorption efficiency of the air flow, and the heat dissipation effect of the heat dissipation fins is not ideal, on the other hand, when the air flow flows between the heat dissipation fins, the heat dissipation fin part first contacted by the air flow has a good heat dissipation effect, and with the flow of the air flow, the subsequent part of the heat dissipation fins contacted by the air flow has a poor heat dissipation effect due to the small temperature difference between the air flow and the subsequent part of the heat dissipation fins, so that the heat dissipation fins cannot be uniformly cooled. SUMMARY

[0004] In view of the above problems of the prior art, the technical problem to be solved by the embodiments of the present application is to provide a wind-cooled energy-saving distribution transformer.

[0005] To solve the above technical problem, the present application provides the following technical scheme:

[0006] A wind-cooled energy-saving distribution transformer, comprising a transformer body, a gas supply assembly and a telescopic exhaust assembly,

[0007] A plurality of heat dissipation fins are fixedly arranged on the side wall of the transformer body in a spaced manner, and a heat dissipation channel is formed between two adjacent groups of heat dissipation fins,

[0008] The telescopic exhaust assembly is provided in a plurality of groups, the number of the telescopic exhaust assemblies is the same as that of the heat dissipation channels, and the telescopic exhaust assemblies are arranged one by one on the outer side of the heat dissipation channels,

[0009] The gas supply assembly is installed on the outer wall of the transformer body, and is used for supplying air to the telescopic exhaust assemblies to drive the telescopic exhaust assemblies to enter the corresponding heat dissipation channels, so that the air acts on the side wall of the heat dissipation fins.

[0010] As a further improvement of the present application, the air supply assembly comprises a fan, a first air pipe and a second air pipe,

[0011] The fan and the second air pipe are fixedly installed on the outer wall of the transformer body, the second air pipe is horizontally distributed on the outer wall of the transformer body, one end of the first air pipe is connected with the air outlet end of the fan, and the other end is communicated with the second air pipe,

[0012] The plurality of telescopic exhaust assemblies are structurally identical, each comprising a telescopic hose and a sliding plate,

[0013] The sliding plate is slidingly installed on the outer wall of the transformer body, one end of the telescopic hose is communicated with the second air pipe, and the other end is connected with the sliding plate, and a plurality of exhaust holes are formed in the side wall of the telescopic hose along the length direction.

[0014] As a further improvement of the present application, the outer wall of the transformer body is fixedly provided with a plurality of guide rails corresponding to the heat dissipation channels, a plurality of guide rails are respectively located inside a plurality of heat dissipation channels and are distributed along the length direction of the heat dissipation channels, and the corresponding sliding plates of a plurality of telescopic exhaust assemblies are slidingly matched with a plurality of guide rails.

[0015] As a further improvement of the present application, the outer wall of the transformer body is further provided with an elastic reset assembly, after the heat dissipation fins finish heat dissipation, the reset assembly is used to drive the sliding plate to slide reversely along the guide rail, so as to realize the reset of the sliding plate.

[0016] As a further improvement of the present application, the reset assembly comprises a support and an elastic reset member,

[0017] The support is fixedly arranged on the outer wall of the transformer body, one end of the elastic reset member is connected with the support, and the other end is connected with the sliding plate, so as to provide elastic tension to the sliding plate.

[0018] As a further improvement of the present application, the elastic reset member is a spring or a metal spring.

[0019] As a further improvement of the present application, one end of the guide rail is fixedly provided with a first stroke limiting block, and the other end is fixedly provided with a second stroke limiting block.

[0020] As a further improvement of the present application, a plurality of annular convex portions are arranged on the telescopic hose along the length direction, annular concave portions are formed between adjacent two groups of annular convex portions, and a plurality of exhaust holes are formed in a plurality of annular concave portions.

[0021] As a further improvement of the present application, a flexible scraping strip is arranged on the side wall of the sliding plate.

[0022] As a further improvement of the present application: the flexible scraping strip is a rubber scraping strip or a silica gel scraping strip.

[0023] Compared with the prior art, the present application has the following beneficial effects:

[0024] In the embodiment of the present application, initially, the plurality of telescopic exhaust assemblies are located outside the plurality of heat dissipation channels formed by the plurality of heat dissipation fins. When it is necessary to perform heat dissipation treatment on the heat dissipation fins, the air supply assembly can supply air to the plurality of telescopic exhaust assemblies. When the plurality of telescopic exhaust assemblies receive the air, they are elongated and enter the corresponding heat dissipation channel interiors. After the plurality of telescopic exhaust assemblies enter the heat dissipation channel interiors, they uniformly deliver the air to the heat dissipation fin side walls, thereby realizing air-cooled heat dissipation of the heat dissipation fins. Compared with the prior art, when air-cooled heat dissipation is performed on the heat dissipation fins, the air flow can smoothly enter between the heat dissipation fins and uniformly and fully act on the heat dissipation fin side walls. On the one hand, the air flow time in the heat dissipation fins can be prolonged to improve the heat dissipation effect of the heat dissipation fins. On the other hand, uniform heat dissipation of the heat dissipation fins can be realized. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 It is a structure diagram of an air-cooled energy-saving power distribution transformer Figure 1 ;

[0026] Figure 2 It is a structure diagram of an air-cooled energy-saving power distribution transformer Figure 2 ;

[0027] Figure 3 It is a structure diagram of a telescopic hose in an air-cooled energy-saving power distribution transformer

[0028] Figure 4 It is an enlarged diagram of area A in Figure 1

[0029] It is an enlarged diagram of area B in Figure 5 Figure 2

[0030] In the figure: 10 - transformer body, 101 - heat dissipation fin, 102 - guide rail, 103 - first stroke limiting block, 104 - second stroke limiting block, 20 - air supply assembly, 201 - fan, 202 - first air delivery pipe, 203 - second air delivery pipe, 30 - telescopic exhaust assembly, 301 - telescopic hose, 3011 - annular outer convex part, 3012 - annular inner recessed part, 3013 - exhaust hole, 302 - sliding plate, 303 - flexible scraping strip, 40 - reset assembly, 401 - support, 402 - elastic reset member. DETAILED DESCRIPTION

[0031] ​​The technical solutions of the present application will be further described in detail below in conjunction with specific embodiments.

[0032] Embodiments of the present application are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present application, and cannot be understood as a limitation of the present application.

[0033] Please refer to Figure 1 and Figure 2 , the embodiment provides a forced air cooling energy-saving power distribution transformer, comprising a transformer body 10, a gas supply assembly 20 and a telescopic exhaust assembly 30, a plurality of spaced apart heat dissipation fins 101 are fixedly arranged on the side wall of the transformer body 10, and a heat dissipation channel is formed between the adjacent two groups of heat dissipation fins 101, the telescopic exhaust assembly 30 is provided with a plurality of groups, the number of the telescopic exhaust assembly 30 is the same as that of the heat dissipation channel, and the telescopic exhaust assembly 30 is arranged outside the heat dissipation channel one by one, the gas supply assembly 20 is installed on the outer wall of the transformer body 10, and is used for supplying air to the telescopic exhaust assembly 30, so as to drive the telescopic exhaust assembly 30 to enter the inside of the corresponding heat dissipation channel, so that the air acts on the side wall of the heat dissipation fin 101.

[0034] Initially, the telescopic exhaust assembly 30 is located outside the heat dissipation channel formed by the heat dissipation fin 101, when the heat dissipation fin 101 needs to be cooled, the gas supply assembly 20 can supply air to the telescopic exhaust assembly 30, the telescopic exhaust assembly 30 is elongated and enters the inside of the corresponding heat dissipation channel when receiving the air, and the telescopic exhaust assembly 30 uniformly delivers the air to the side wall of the heat dissipation fin 101 after entering the inside of the heat dissipation channel, so as to realize the forced air cooling of the heat dissipation fin 101.

[0035] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4In one embodiment, the air supply assembly 20 comprises a fan 201, a first air pipe 202 and a second air pipe 203, the fan 201 and the second air pipe 203 are fixedly installed on the outer wall of the transformer body 10, the second air pipe 203 is horizontally distributed on the outer wall of the transformer body 10, one end of the first air pipe 202 is connected with the air outlet end of the fan 201, and the other end is communicated with the second air pipe 203, a plurality of the telescopic exhaust assemblies 30 are the same in structure and each comprises a telescopic hose 301 and a sliding plate 302, the sliding plate 302 is slidingly installed on the outer wall of the transformer body 10, one end of the telescopic hose 301 is communicated with the second air pipe 203, and the other end is connected with the sliding plate 302, a plurality of exhaust holes 3013 are formed in the side wall of the telescopic hose 301 along the length direction.

[0036] Initially, the telescopic hose 301 is in a shortened state, and the sliding plate 302 is located at the position outside the heat dissipation channel, when it is necessary to dissipate heat for the heat dissipation fins 101, the fan 201 is started, the fan 201 drives external air to enter the inside of the second air pipe 203 from the first air pipe 202, and then enters the inside of the telescopic hose 301 from the second air pipe 203, when the external air enters the inside of the telescopic hose 301, the sliding plate 302 can be pushed to slide along the outer wall of the transformer body 10, the sliding plate 302 slides into the inside of the heat dissipation channel between two adjacent groups of heat dissipation fins 101, and simultaneously the sliding plate 302 drags the telescopic hose 301 to be elongated, the elongated telescopic hose 301 is synchronously inserted into the inside of the heat dissipation channel and arranged along the length direction of the heat dissipation channel, then the external air is output from the plurality of exhaust holes 3013 in the side wall of the elongated telescopic hose 301, so as to comprehensively act on the side wall of the heat dissipation fins 101, and uniform heat dissipation of the heat dissipation fins 101 is realized.

[0037] Please refer to Figure 4 In one embodiment, a plurality of guide rails 102 corresponding to the heat dissipation channels are fixedly arranged on the side wall of the transformer body 10, the plurality of guide rails 102 are respectively located in the plurality of heat dissipation channels and distributed along the length direction of the heat dissipation channels, and the corresponding sliding plate 302 of the plurality of telescopic exhaust assemblies 30 is slidingly matched with the plurality of guide rails 102.

[0038] When the fan 201 drives the external air to enter the inside of the telescopic hose 301 from the first air pipe 202 and the second air pipe 203, the external air pushes the sliding plate 302 to slide along the guide rail 102, the sliding plate 302 can stably enter the inside of the corresponding heat dissipation channel, and simultaneously the telescopic hose 301 is dragged into the inside of the corresponding heat dissipation channel and distributed along the length direction of the heat dissipation channel.

[0039] Please refer to Figure 4In one embodiment, the transformer body 10 is further provided with an elastic reset component 40 on the outer wall of the transformer body 10. After the heat dissipation fins 101 finish heat dissipation, the reset component 40 is used to drive the sliding plate 302 to slide reversely along the guide rail 102, so as to reset the sliding plate 302. When the sliding plate 302 slides reversely, the elastic hose 301 is shortened, so as to reset the elastic hose 301.

[0040] Please continue to refer to Figure 4 In one embodiment, the reset component 40 comprises a support 401 and an elastic reset member 402. The support 401 is fixedly arranged on the outer wall of the transformer body 10. One end of the elastic reset member 402 is connected with the support 401, and the other end is connected with the sliding plate 302, so as to provide elastic tension to the sliding plate 302.

[0041] When the external air enters the inside of the elastic hose 301 and pushes the sliding plate 302 to enter the inside of the heat dissipation channel, the elastic reset member 402 is stretched. When the heat dissipation fins 101 finish heat dissipation, the fan 201 stops working. At this time, the sliding plate 302 is no longer pushed by the air, and the elastic reset member 402 pulls the sliding plate 302 to slide reversely along the guide rail 102, so that the sliding plate 302 moves to the outside of the heat dissipation channel again, and the sliding plate 302 is reset.

[0042] In one embodiment, the elastic reset member 402 can be a spring or a metal spring piece, which is not limited here.

[0043] Please refer to Figure 4 and Figure 5 In one embodiment, one end of the guide rail 102 is fixedly provided with a first stroke limiting block 103, and the other end is fixedly provided with a second stroke limiting block 104. When the external air pushes the sliding plate 302 to slide along the guide rail 102, the sliding plate 302 can act on the second stroke limiting block 104. At this time, the length of the stretched elastic hose 301 can cover the entire heat dissipation channel, so that the air output through the air outlet holes 3013 can comprehensively act on the side wall of the heat dissipation fins 101, thereby improving the heat dissipation effect of the heat dissipation fins 101. When the fan 201 stops working, the elastic reset member 402 pulls the sliding plate 302 to slide reversely along the guide rail 102, and the sliding plate 302 can act on the first stroke limiting block 103, so as to limit the sliding plate 302 to the initial position by the first stroke limiting block 103.

[0044] Please refer to Figure 3 In one embodiment, the elastic hose 301 is provided with a plurality of annular convex portions 3011 which are spaced apart and arranged along the length direction. The annular concave portions 3012 are formed between adjacent two groups of annular convex portions 3011. A plurality of air outlet holes 3013 are arranged on the annular concave portions 3012.

[0045] When the external air pushes the sliding plate 302 to slide along the guide rail 102, the telescopic hose 301 is elongated, the plurality of annular convex portions 3011 are away from each other, and the plurality of air outlet holes 3013 are leaked to enable the external air to be output from the plurality of air outlet holes 3013 and act on the side wall of the heat dissipation fin 101, so as to achieve heat dissipation of the heat dissipation fin 101; when the fan 201 stops working, the elastic reset member 402 pulls the sliding plate 302 to slide reversely along the guide rail 102 and reset, the telescopic hose 301 is retracted, the plurality of annular convex portions 3011 are close to each other, and the plurality of annular concave portions 3012 are extruded and folded, so as to shield the plurality of air outlet holes 3013, thereby avoiding dust and foreign matters from entering the inside of the telescopic hose 301 through the air outlet holes 3013, preventing the telescopic hose 301 from being blocked, and ensuring the subsequent output effect of the external air.

[0046] Please refer to Figure 4 In an embodiment, the side wall of the sliding plate 302 is provided with a flexible scraping strip 303, when the external air enters the inside of the telescopic hose 301 and pushes the sliding plate 302 to move along the inside of the heat dissipation channel, the flexible scraping strip 303 on the side wall of the sliding plate 302 can act on the side wall of the heat dissipation fin 101, thereby scraping off the dust and sundries attached to the heat dissipation fin 101, achieving cleaning of the heat dissipation fin 101, so as to prevent the dust and sundries from adhering to the side wall of the heat dissipation fin 101, avoiding affecting the heat dissipation effect of the heat dissipation fin 101.

[0047] In an embodiment, the flexible scraping strip 303 can be a rubber scraping strip or a silica gel scraping strip, which is not limited here.

[0048] In the embodiment of the application, initially, the plurality of telescopic air exhaust assemblies 30 are located outside the plurality of heat dissipation channels formed by the plurality of heat dissipation fins 101, when the heat dissipation fins 101 need to be heat dissipated, the air supply assembly 20 can supply air to the plurality of telescopic air exhaust assemblies 30, the plurality of telescopic air exhaust assemblies 30 are elongated and enter the inside of the corresponding heat dissipation channels when receiving the air, and the plurality of telescopic air exhaust assemblies 30 uniformly deliver the air to the side wall of the heat dissipation fin 101 after entering the inside of the heat dissipation channel, thereby achieving air-cooled heat dissipation of the heat dissipation fin 101. Compared with the prior art, when the heat dissipation fin 101 is air-cooled and heat dissipated, the air flow can smoothly enter between the heat dissipation fins 101 and uniformly and fully act on the side wall of the heat dissipation fin 101, which can on the one hand prolong the flow time of the air flow between the heat dissipation fins 101, so as to improve the heat dissipation effect of the heat dissipation fin 101, and on the other hand, can achieve uniform heat dissipation of the heat dissipation fin 101.

[0049] The preferred embodiments of the present application have been described in detail, but the present application is not limited to the above-described embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present application.

Claims

1. A wind-cooled, energy-saving distribution transformer, characterized in that, It includes the transformer body (10), the gas supply assembly (20), and the telescopic exhaust assembly (30). A number of spaced heat dissipation fins (101) are fixedly arranged on the side wall of the transformer body (10), and a heat dissipation channel is formed between two adjacent sets of heat dissipation fins (101). The telescopic exhaust assembly (30) is provided in several groups, and the number of the telescopic exhaust assemblies (30) is the same as the number of heat dissipation channels. The telescopic exhaust assemblies (30) are arranged one-to-one with the heat dissipation channels on the outside. The air supply assembly (20) is installed on the outer wall of the transformer body (10) and is used to supply air to the plurality of telescopic exhaust assemblies (30) to drive the plurality of telescopic exhaust assemblies (30) into the interior of the corresponding heat dissipation channel, so that the air acts on the side wall of the heat dissipation fins (101). The gas supply assembly (20) includes a fan (201), a first gas supply pipe (202), and a second gas supply pipe (203). The fan (201) and the second air supply pipe (203) are both fixedly installed on the outer wall of the transformer body (10). The second air supply pipe (203) is horizontally distributed on the outer wall of the transformer body (10). One end of the first air supply pipe (202) is connected to the air outlet of the fan (201), and the other end is connected to the second air supply pipe (203). Several of the telescopic exhaust assemblies (30) have the same structure, each including a telescopic hose (301) and a sliding plate (302). The slide plate (302) is slidably installed on the outer wall of the transformer body (10). One end of the telescopic hose (301) is connected to the second gas pipe (203), and the other end is connected to the slide plate (302). Several exhaust holes (3013) are opened on the side wall of the telescopic hose (301) along the length direction. The transformer body (10) has several guide rails (102) fixedly installed on its side wall, each corresponding to one of the heat dissipation channels. An elastic reset assembly (40) is also provided on the outer wall of the transformer body (10). After the heat dissipation fins (101) have finished dissipating heat, the reset assembly (40) is used to drive the slide plate (302) to slide in the opposite direction along the guide rail (102) to realize the reset of the slide plate (302). The reset assembly (40) includes a support (401) and an elastic reset member (402). The support (401) is fixedly installed on the outer wall of the transformer body (10). One end of the elastic reset member (402) is connected to the support (401), and the other end is connected to the slide plate (302) to provide elastic tension to the slide plate (302).

2. The air-cooled energy-saving distribution transformer according to claim 1, characterized in that, The guide rails (102) are located inside the heat dissipation channels and distributed along the length of the heat dissipation channels. The slide plates (302) corresponding to the telescopic exhaust components (30) slide in cooperation with the guide rails (102).

3. The air-cooled energy-saving distribution transformer according to claim 1, characterized in that, The elastic reset element (402) is a spring or a metal spring sheet.

4. The air-cooled energy-saving distribution transformer according to claim 1, characterized in that, The guide rail (102) has a first travel limit block (103) fixedly installed at one end and a second travel limit block (104) fixedly installed at the other end.

5. The air-cooled energy-saving distribution transformer according to claim 1, characterized in that, The telescopic hose (301) has a number of annular protrusions (3011) spaced apart along its length. Annular concave portions (3012) are formed between two adjacent sets of annular protrusions (3011). A number of vent holes (3013) are correspondingly opened on the number of annular concave portions (3012).

6. The air-cooled energy-saving distribution transformer according to claim 1, characterized in that, The sidewall of the slide plate (302) is provided with a flexible scraper (303).

7. A wind-cooled energy-saving distribution transformer according to claim 6, characterized in that, The flexible scraper (303) is a rubber scraper or a silicone scraper.

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