Air-cooled energy-saving distribution transformer

Abstract

The invention provides an air-cooled energy-saving distribution transformer, and belongs to the technical field of transformers, the air-cooled energy-saving distribution transformer comprises a transformer body, an air supply assembly and a telescopic exhaust assembly, a plurality of radiating fins distributed at intervals are fixedly arranged on the side wall of the transformer body, and a radiating channel is formed between every two adjacent groups of radiating fins; the number of the telescopic exhaust assemblies is the same as that of the heat dissipation channels, and the telescopic exhaust assemblies are arranged on the outer sides of the heat dissipation channels in a one-to-one correspondence mode. Compared with the prior art, when air-cooled heat dissipation is carried out on the heat dissipation fins, air flow can smoothly enter the heat dissipation fins and uniformly and fully act on the side walls of the heat dissipation fins, on one hand, the flowing time of the air flow between the heat dissipation fins can be prolonged, so that the heat dissipation effect of the heat dissipation fins is improved, and the heat dissipation efficiency of the heat dissipation fins is improved. On the other hand, uniform heat dissipation of the heat dissipation fins can be achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of transformers, in particular to an air-cooled energy-saving distribution transformer. Background Art

[0002] Currently, when a transformer is working, its core and windings generate a large amount of heat. This heat is transferred to a number of heat dissipation fins outside the transformer body through the transformer oil, and then dissipated to the external environment by the heat dissipation fins.

[0003] When the external ambient temperature is high, the heat on the heat fins is difficult to dissipate quickly. At this time, a fan is needed to assist in heat dissipation. Specifically, the fan draws outside air so that the outside air enters between the heat fins from one end of the heat fins and then is discharged from the other end of the heat fins to take away the heat on the heat fins. However, on the one hand, when the air flow flows between the heat fins, the time for the air flow to act on the heat fins is relatively short, resulting in a relatively low heat absorption efficiency of the air flow, which makes the heat dissipation effect of the heat fins unsatisfactory. On the other hand, when the air flow flows along the heat fins, the heat dissipation effect of the heat fins that first come into contact with the air flow is better. As the air flow flows, the subsequent parts of the heat fins that come into contact with the air flow have a smaller temperature difference with the air flow, resulting in poor heat dissipation effect of the subsequent parts of the heat fins, which makes it impossible to dissipate heat evenly. Summary of the Invention

[0004] In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the embodiments of the present invention is to provide an air-cooled energy-saving distribution transformer.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: An air-cooled energy-saving distribution transformer comprises a transformer body, an air supply assembly and a telescopic exhaust assembly. A plurality of heat dissipation fins are fixedly provided on the side wall of the transformer body, and a heat dissipation channel is formed between two adjacent groups of heat dissipation fins. The telescopic exhaust components are provided in a plurality of groups, the number of the telescopic exhaust components is the same as the number of the heat dissipation channels, and the telescopic exhaust components are arranged on the outside of the heat dissipation channels in a one-to-one correspondence. The air supply assembly is mounted on the outer wall of the transformer body and is used to supply air to the telescopic exhaust assemblies to drive the telescopic exhaust assemblies into the corresponding heat dissipation channels, so that the air acts on the side walls of the heat dissipation fins.

[0006] As a further improvement of the present invention: the air supply assembly includes a blower, a first air supply pipe and a second air supply pipe, The fan and the second air supply pipe are both fixedly mounted on the outer wall of the transformer body. The second air supply pipe is horizontally distributed on the outer wall of the transformer body. One end of the first air supply pipe is connected to the air outlet of the fan, and the other end is connected to the second air supply pipe. Several of the telescopic exhaust assemblies have the same structure, including a telescopic hose and a slide plate. The slide is slidably mounted on the outer wall of the transformer body. One end of the telescopic hose is connected to the second gas pipe, and the other end is connected to the slide. A plurality of exhaust holes are opened on the side wall of the telescopic hose along the length direction.

[0007] As a further improvement of the present invention: a plurality of guide rails corresponding to the heat dissipation channels are fixedly provided on the side wall of the transformer body, and the guide rails are respectively located inside the heat dissipation channels and distributed along the length direction of the heat dissipation channels, and the slides corresponding to the telescopic exhaust assemblies are slidably matched with the guide rails.

[0008] As a further improvement of the present invention: an elastic reset component is further provided on the outer wall of the transformer body. After the heat dissipation of the heat dissipating fins is completed, the reset component is used to drive the slide to slide in the opposite direction along the guide rail to achieve the reset of the slide.

[0009] As a further improvement of the present invention: the reset assembly includes a support and an elastic reset member, The support is fixedly arranged on the outer wall of the transformer body. One end of the elastic reset member is connected to the support, and the other end is connected to the slide, so as to provide elastic tension to the slide.

[0010] As a further improvement of the present invention: the elastic reset member is a spring or a metal spring.

[0011] As a further improvement of the present invention: a first travel limit block is fixedly provided at one end of the guide rail, and a second travel limit block is fixedly provided at the other end.

[0012] As a further improvement of the present invention, the telescopic hose is provided with a plurality of annular outer protrusions spaced apart along the length direction, an annular inner concave portion is formed between two adjacent groups of the annular outer protrusions, and the plurality of exhaust holes are correspondingly opened on the plurality of the annular inner concave portions.

[0013] As a further improvement of the present invention, the side wall of the slide plate is provided with a flexible scraper.

[0014] As a further improvement of the present invention: the flexible scraper is a rubber scraper or a silicone scraper.

[0015] Compared with the prior art, the present invention has the following beneficial effects: In an embodiment of the present invention, initially, a plurality of telescopic exhaust assemblies are located outside a plurality of heat dissipation channels formed by a plurality of heat dissipation fins. When the heat dissipation fins need to be treated, air can be supplied to the plurality of telescopic exhaust assemblies through the air supply assembly. When receiving the air, the plurality of telescopic exhaust assemblies extend and enter the corresponding heat dissipation channels. After entering the heat dissipation channels, the plurality of telescopic exhaust assemblies evenly transport the air to the side walls of the heat dissipation fins, thereby realizing air-cooled heat dissipation of the heat dissipation fins. Compared with the prior art, when the heat dissipation fins are subjected to air-cooled heat dissipation, the air flow can smoothly enter between the heat dissipation fins and evenly and fully act on the side walls of the heat dissipation fins. On the one hand, the flow time of the air flow between the heat dissipation fins can be extended 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 THE DRAWINGS

[0016] Figure 1 A schematic diagram of the structure of an air-cooled energy-saving distribution transformer Figure 1 ; Figure 2 A schematic diagram of the structure of an air-cooled energy-saving distribution transformer Figure 2 ; Figure 3 This is a schematic diagram of the structure of a telescopic hose in an air-cooled energy-saving distribution transformer; Figure 4 for Figure 1 A magnified schematic diagram of area A in the middle; Figure 5 for Figure 2 A magnified schematic diagram of area B in the middle; In the figure: 10-transformer body, 101-heat sink fin, 102-guide rail, 103-first stroke limit block, 104-second stroke limit block, 20-air supply assembly, 201-fan, 202-first air pipe, 203-second air pipe, 30-telescopic exhaust assembly, 301-telescopic hose, 3011-annular outer protrusion, 3012-annular inner concave portion, 3013-exhaust hole, 302-slide plate, 303-flexible scraper, 40-reset assembly, 401-support, 402-elastic reset member. DETAILED DESCRIPTION

[0017] The technical solution of the present invention will be further described in detail below in conjunction with specific implementation methods.

[0018] The following describes embodiments of the present invention in detail. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0019] See also Figure 1 as well as Figure 2 The present embodiment provides an air-cooled energy-saving distribution transformer, including a transformer body 10, an air supply assembly 20, and a telescopic exhaust assembly 30. The side wall of the transformer body 10 is fixedly provided with a plurality of spaced heat dissipation fins 101, and a heat dissipation channel is formed between two adjacent groups of the heat dissipation fins 101. The telescopic exhaust assembly 30 is provided in a plurality of groups, and the number of the telescopic exhaust assemblies 30 is the same as the number of the heat dissipation channels. The telescopic exhaust assemblies 30 are arranged one-to-one on the outside of the heat dissipation channels. The air supply assembly 20 is mounted on the outer wall of the transformer body 10 for supplying air to the telescopic exhaust assemblies 30 to drive the telescopic exhaust assemblies 30 into the corresponding heat dissipation channels, so that the air acts on the side walls of the heat dissipation fins 101.

[0020] Initially, several telescopic exhaust assemblies 30 are located outside several heat dissipation channels formed by several heat dissipation fins 101. When the heat dissipation treatment of the heat dissipation fins 101 is required, air can be supplied to the several telescopic exhaust assemblies 30 through the air supply assembly 20. When receiving the air, the several telescopic exhaust assemblies 30 extend and enter the corresponding heat dissipation channels. After entering the heat dissipation channels, the several telescopic exhaust assemblies 30 evenly transport the air to the side walls of the heat dissipation fins 101, thereby realizing air-cooled heat dissipation of the heat dissipation fins 101.

[0021] See also Figure 1 、 Figure 2 、 Figure 3 as well as Figure 4 In one embodiment, the air supply assembly 20 includes a fan 201, a first air pipe 202 and a second air pipe 203. The fan 201 and the second air pipe 203 are both fixedly mounted 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 to the air outlet end of the fan 201, and the other end is connected to the second air pipe 203. Several telescopic exhaust assemblies 30 have the same structure and include a telescopic hose 301 and a slide 302. The slide 302 is slidably mounted on the outer wall of the transformer body 10. One end of the telescopic hose 301 is connected to the second air pipe 203, and the other end is connected to the slide 302. Several exhaust holes 3013 are opened on the side wall of the telescopic hose 301 along the length direction.

[0022] Initially, the telescopic hose 301 is in a shortened state, and the slide 302 is located outside the heat dissipation channel. When heat dissipation is required for the heat dissipation fins 101, the fan 201 is started, and the fan 201 draws outside air and allows the outside air to enter the second air dissipation pipe 203 from the first air supply pipe 202, and then enter the telescopic hose 301 from the second air supply pipe 203. When the outside air enters the telescopic hose 301, it can push the slide 302 to slide along the outer wall of the transformer body 10, and the slide 302 slides into the heat dissipation channel between two adjacent groups of heat dissipation fins 101. At the same time, the slide 302 pulls the telescopic hose 301 to extend, and the extended telescopic hose 301 is synchronously extended into the heat dissipation channel and arranged along the length direction of the heat dissipation channel. Then, the outside air is discharged from the multiple exhaust holes 3013 on the side wall of the extended telescopic hose 301, thereby fully acting on the side wall of the heat dissipation fins 101 to achieve uniform heat dissipation of the heat dissipation fins 101.

[0023] See also Figure 4 In one embodiment, a plurality of guide rails 102 corresponding to the heat dissipation channels are fixedly provided on the side wall of the transformer body 10. The guide rails 102 are respectively located inside the heat dissipation channels and distributed along the length direction of the heat dissipation channels. The slides 302 corresponding to the telescopic exhaust assemblies 30 are slidably matched with the guide rails 102.

[0024] When the fan 201 draws outside air into the telescopic hose 301 from the first air supply pipe 202 and the second air supply pipe 203, the outside air pushes the slide 302 so that the slide 302 slides along the guide rail 102. The slide 302 can smoothly enter the corresponding heat dissipation channel and at the same time pull the telescopic hose 301 into the corresponding heat dissipation channel so that the telescopic hose 301 is distributed along the length direction of the heat dissipation channel.

[0025] See also Figure 4 In one embodiment, an elastic reset component 40 is further provided on the outer wall of the transformer body 10. After the heat dissipation of the heat dissipating fins 101 is completed, the reset component 40 is used to drive the slide 302 to slide in the opposite direction along the guide rail 102 to reset the slide 302. When the slide 302 slides in the opposite direction, the telescopic hose 301 is shortened to reset the telescopic hose 301.

[0026] Please continue reading Figure 4 In one embodiment, the reset assembly 40 includes 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 to the support 401, and the other end is connected to the slide 302, which is used to provide elastic tension to the slide 302.

[0027] When outside air enters the telescopic hose 301 and pushes the slide 302 so that the slide 302 enters the heat dissipation channel, the elastic reset member 402 is stretched and lengthened; when the heat dissipation fins 101 have completed, the fan 201 stops working. At this time, the slide 302 is no longer subjected to air thrust, and the elastic reset member 402 pulls the slide 302 to slide in the opposite direction along the guide rail 102, so that the slide 302 moves back to the outside of the heat dissipation channel, thereby realizing the reset of the slide 302.

[0028] In one embodiment, the elastic return member 402 may be a spring or a metal spring, which is not limited here.

[0029] See also Figure 4 as well as Figure 5 In one embodiment, a first stroke limit block 103 is fixedly provided at one end of the guide rail 102, and a second stroke limit block 104 is fixedly provided at the other end. When the outside air pushes the slide plate 302 to slide along the guide rail 102, the slide plate 302 can act on the second stroke limit block 104. At this time, the extended telescopic hose 301 has a length that can cover the entire heat dissipation channel, so that the air output through the plurality of exhaust holes 3013 can fully act on the side walls of the heat dissipation fins 101, thereby improving the heat dissipation effect of the heat dissipation fins 101; when the fan 201 stops working and the elastic return member 402 pulls the slide plate 302 to slide in the opposite direction along the guide rail 102, the slide plate 302 can act on the first stroke limit block 103, and the first stroke limit block 103 is used to limit the slide plate 302 to the initial position.

[0030] See also Figure 3 In one embodiment, the telescopic hose 301 is provided with a plurality of annular outer protrusions 3011 spaced apart along the length direction, an annular inner recess 3012 is formed between two adjacent groups of the annular outer protrusions 3011, and a plurality of the exhaust holes 3013 are correspondingly opened on the plurality of the annular inner recesses 3012.

[0031] When the outside air pushes the slide plate 302 to slide along the guide rail 102, the telescopic hose 301 extends, and the several annular outer protrusions 3011 move away from each other to allow the several exhaust holes 3013 to leak out, so that the outside air can be output from the several exhaust holes 3013 and act on the side walls of the heat dissipation fins 101 to achieve heat dissipation of the heat dissipation fins 101; when the fan 201 stops working, the elastic reset member 402 pulls the slide plate 302 to slide in the opposite direction along the guide rail 102 and resets, the telescopic hose 301 retracts, the several annular outer protrusions 3011 move closer to each other, and then squeeze and fold the several annular inner recesses 3012 to cover the several exhaust holes 3013, thereby preventing dust and foreign matter from entering the interior of the telescopic hose 301 through the exhaust holes 3013, preventing the telescopic hose 301 from being blocked, and ensuring the subsequent output effect of the outside air.

[0032] See also Figure 4 In one embodiment, a flexible scraper 303 is provided on the side wall of the slide plate 302. When outside air enters the interior of the telescopic hose 301 and pushes the slide plate 302 so that the slide plate 302 moves along the interior of the heat dissipation channel, the flexible scraper 303 on the side wall of the slide plate 302 can act on the side wall of the heat dissipation fin 101, thereby scraping off dust and debris attached to the heat dissipation fin 101, thereby cleaning the heat dissipation fin 101, thereby preventing dust and debris from adhering to the side wall of the heat dissipation fin 101 and avoiding affecting the heat dissipation effect of the heat dissipation fin 101.

[0033] In one embodiment, the flexible scraper 303 may be a rubber scraper or a silicone scraper, which is not limited here.

[0034] In an embodiment of the present invention, initially, a plurality of telescopic exhaust assemblies 30 are located outside a plurality of heat dissipation channels formed by a plurality of heat dissipation fins 101. When heat dissipation treatment is required for the heat dissipation fins 101, air can be supplied to the plurality of telescopic exhaust assemblies 30 through the air supply assembly 20. When receiving the air, the plurality of telescopic exhaust assemblies 30 extend and enter the corresponding heat dissipation channels. After entering the heat dissipation channels, the plurality of telescopic exhaust assemblies 30 evenly transport the air to the side walls of the heat dissipation fins 101, thereby realizing air-cooled heat dissipation of the heat dissipation fins 101. Compared with the prior art, when air-cooled heat dissipation is performed on the heat dissipation fins 101, the air flow can smoothly enter between the heat dissipation fins 101 and evenly and fully act on the side walls of the heat dissipation fins 101. On the one hand, the flow time of the air flow between the heat dissipation fins 101 can be extended to improve the heat dissipation effect of the heat dissipation fins 101. On the other hand, uniform heat dissipation of the heat dissipation fins 101 can be realized.

[0035] The preferred embodiments of the present invention are described in detail above, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in this field without departing from the purpose of the present invention.

Claims

1. An air-cooled energy-saving distribution transformer, characterized in that: It comprises a transformer body (10), an air supply assembly (20), and a telescopic exhaust assembly (30), A plurality of heat dissipation fins (101) are fixedly provided on the side wall of the transformer body (10) and are distributed at intervals, and a heat dissipation channel is formed between two adjacent groups of the heat dissipation fins (101). The telescopic exhaust components (30) are provided in a plurality of groups, the number of the telescopic exhaust components (30) being the same as the number of the heat dissipation channels, and the telescopic exhaust components (30) being arranged on the outside of the heat dissipation channels in a one-to-one correspondence. The air supply assembly (20) is mounted 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 corresponding heat dissipation channels, so that the air acts on the side walls of the heat dissipation fins (101).

2. The air-cooled energy-saving distribution transformer according to claim 1, characterized in that: The air supply assembly (20) comprises a fan (201), a first air supply pipe (202), and a second air supply pipe (203). The fan (201) and the second air supply pipe (203) are both fixedly mounted 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 end 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, and all include a telescopic hose (301) and a slide plate (302). The slide plate (302) is slidably mounted on the outer wall of the transformer body (10); one end of the telescopic hose (301) is connected to the second gas transmission pipe (203); the other end is connected to the slide plate (302); and a plurality of exhaust holes (3013) are provided on the side wall of the telescopic hose (301) along the length direction.

3. The air-cooled energy-saving distribution transformer according to claim 2, characterized in that: A plurality of guide rails (102) corresponding to the heat dissipation channels are fixedly provided on the side wall of the transformer body (10), the plurality of guide rails (102) are respectively located inside the plurality of heat dissipation channels and distributed along the length direction of the heat dissipation channels, and the slides (302) corresponding to the plurality of telescopic exhaust assemblies (30) are slidably matched with the plurality of guide rails (102).

4. The air-cooled energy-saving distribution transformer according to claim 3, characterized in that: An elastic reset component (40) is also provided on the outer wall of the transformer body (10). After the heat dissipation of the heat dissipation fins (101) is completed, the reset component (40) is used to drive the slide plate (302) to slide in the opposite direction along the guide rail (102), thereby achieving the reset of the slide plate (302).

5. The air-cooled energy-saving distribution transformer according to claim 4, characterized in that: The reset assembly (40) includes 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 to the support (401), and the other end is connected to the slide plate (302), and is used to provide elastic tension to the slide plate (302).

6. The air-cooled energy-saving distribution transformer according to claim 5, characterized in that: The elastic reset member (402) is a spring or a metal spring.

7. The air-cooled energy-saving distribution transformer according to claim 3, characterized in that: A first travel limit block (103) is fixedly provided at one end of the guide rail (102), and a second travel limit block (104) is fixedly provided at the other end.

8. The air-cooled energy-saving distribution transformer according to claim 2, characterized in that: The telescopic hose (301) is provided with a plurality of annular outer protrusions (3011) spaced apart along its length, an annular inner concave portion (3012) is formed between two adjacent groups of the annular outer protrusions (3011), and the plurality of exhaust holes (3013) are correspondingly provided on the plurality of annular inner concave portions (3012).

9. The air-cooled energy-saving distribution transformer according to claim 2, characterized in that: A flexible scraper strip (303) is provided on the side wall of the slide plate (302).

10. The air-cooled energy-saving distribution transformer according to claim 9, characterized in that: The flexible scraper (303) is a rubber scraper or a silicone scraper.

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