Transformer oil tank

Abstract

A transformer oil tank comprises a tank body and a plurality of heat dissipation plates fixedly connected to the outer wall of the tank body, a heat dissipation plate cooling device is arranged on the tank body and comprises a piston driving device, a piston cylinder, a one-way valve assembly, a check valve, a connecting pipe, a distribution pipe and a piston, and the piston cylinder is fixedly installed on the tank body; a one-way valve assembly is arranged on the outer wall of the piston cylinder, the two ends of the check valve are communicated with the piston cylinder and the connecting pipe respectively, the other end of the connecting pipe is communicated with the distribution pipe, the distribution pipe is arranged around the heat dissipation plate, a plurality of exhaust holes are formed in the distribution pipe in the direction towards the heat dissipation plate, and the piston is driven by the piston driving device to horizontally move back and forth in the piston cylinder. According to the transformer oil tank, the heat dissipation performance of the transformer oil tank is improved through the heat dissipation plate cooling device arranged on the tank body; through the arrangement of the piston driving device, the air conveying stability is improved; and the cooling efficiency of the heat dissipation plate is improved through the nozzles mounted at the exhaust holes of the distribution pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of transformers, in particular to a transformer oil tank. Background Art

[0002] A transformer is an electrical device used to change the size of AC voltage. It consists of two or more coils and realizes voltage conversion through the principle of electromagnetic induction. It is mainly used for voltage conversion and power transmission in power transmission systems. It is widely used in power systems, industrial production, household electricity and other fields. The transformer oil tank is a container installed on the transformer. Its main function is to store transformer oil. The transformer oil tank is usually made of metal and is used to protect the insulating oil from external pollution and moisture intrusion. It also plays a role in protecting the insulating oil and dissipating heat. The transformer oil tank plays an important role in protecting and dissipating heat in the transformer, ensuring the normal operation of the transformer and extending the service life of the transformer.

[0003] The transformer oil tank usually dissipates heat by oil cooling. When the transformer is running, the internal windings and core will generate a certain amount of heat. In order to avoid excessive temperature affecting the normal operation of the transformer, the transformer oil tank is usually filled with insulating oil. The heat is dissipated by the thermal conductivity and specific heat capacity of the insulating oil. When heat is generated inside the transformer, the insulating oil absorbs the heat and conducts it to the surface of the oil tank. The oil tank is usually designed with a large area of ​​heat sink to improve the heat dissipation efficiency. However, as the transformer works for a long time or the working environment temperature is high, the temperature of the heat sink outside the oil tank will gradually increase, reducing the heat dissipation effect, thereby affecting the normal operation of the transformer. Therefore, studying a new type of transformer oil tank and solving the above problems are of great significance to improving the heat dissipation performance of the transformer oil tank. Utility Model Content

[0004] In order to solve the above problems, the utility model provides a transformer oil tank. The transformer oil tank cools the heat sink by conveying air to the heat sink through a heat sink cooling device arranged on the box body, thereby improving the heat dissipation performance of the transformer oil tank; through the arranged piston driving device, the air can be effectively compressed and conveyed to the distribution pipe through the reciprocating movement of the piston in the piston cylinder, thereby improving the stability of air conveyance; through the nozzle installed at the exhaust hole of the distribution pipe, the air can be ejected at a high speed, thereby accelerating the circulation of the air and improving the cooling efficiency of the heat sink.

[0005] The technical solution of the utility model is as follows:

[0006] A transformer oil tank, comprising a box body and a plurality of heat sinks fixedly connected to the outer wall of the box body, the box body is provided with a heat sink cooling device, the heat sink cooling device comprises a piston driving device, a piston cylinder, a one-way valve assembly, a check valve, a connecting pipe, a distribution pipe and a piston, the piston cylinder is fixedly installed on the box body, the outer wall of the piston cylinder is provided with a one-way valve assembly that only allows air to flow from outside to inside, the two ends of the check valve are respectively connected to the piston cylinder and the connecting pipe, the other end of the connecting pipe is connected to the distribution pipe, the distribution pipe is arranged around the heat sink, the distribution pipe is provided with a plurality of exhaust holes in the direction of the heat sink, and the piston moves back and forth horizontally in the piston cylinder under the drive of the piston driving device;

[0007] The piston driving device includes a motor reducer, a turntable, a first shaft, a connecting rod, a second shaft and a connecting block. The motor reducer is arranged on a box body. The turntable is rotatably coaxially connected to the output shaft of the motor reducer. The first shaft is eccentrically arranged on the turntable. One end of the connecting rod is hinged to the turntable through the first shaft, and the other end is hinged to the connecting block through the second shaft. The connecting block is fixedly connected to the piston.

[0008] In order to effectively increase the surface area of ​​the heat sink, improve the efficiency of heat conduction, and make the heat dissipation faster and more effective, the shape of the heat sink is a fin shape.

[0009] In order to facilitate maintenance and replacement and increase service life, the one-way valve assembly includes an intake pipe, a retaining ring, an elastomer and a sealing ball. The intake pipe is fixed to the outer wall of the piston cylinder and is connected to the piston cylinder. A tapered hole with a gradually decreasing aperture along the outlet direction is provided at the outlet of the intake pipe. The retaining ring is provided in the intake pipe. The sealing ball is provided between the retaining ring and the tapered hole and can be in sealing contact with the tapered hole. The two ends of the elastomer are respectively fixedly connected to the retaining ring and the sealing ball.

[0010] In order to effectively prevent dust, debris and the like from entering the air intake pipe, a filter screen is provided at the air intake of the air intake pipe.

[0011] In order to improve stability and reliability, the elastic body is a compression spring.

[0012] In order to eject the air at high speed and accelerate the circulation of the air, a nozzle is installed at the exhaust hole of the distribution pipe.

[0013] The exhaust holes formed in the distribution pipe are evenly distributed.

[0014] The distribution pipe is fixedly connected to the upper part of the heat dissipation plate.

[0015] The distribution pipe is fixedly connected to the box body through a support member.

[0016] The support member is a support plate.

[0017] The beneficial effects of the utility model are:

[0018] 1. The utility model discloses a transformer oil tank, which improves the heat dissipation performance of the transformer oil tank by cooling the heat dissipation plate by conveying air to the heat dissipation plate through a heat dissipation plate cooling device arranged on the tank body.

[0019] 2. The transformer oil tank disclosed in the utility model can effectively compress the air and deliver it to the distribution pipe through the reciprocating movement of the piston in the piston cylinder by means of the piston driving device, thereby improving the stability of air delivery.

[0020] 3. The transformer oil tank disclosed by the utility model can spray air at high speed through a nozzle installed at the exhaust hole of the distribution pipe, thereby accelerating the circulation of air and improving the cooling efficiency of the heat sink. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] By reading the detailed description of the preferred embodiment below, the scheme and advantages of the present application will become clear to those skilled in the art. The accompanying drawings are only used to illustrate the preferred embodiment and are not considered to be limiting of the present invention.

[0022] In the attached picture:

[0023] Figure 1 It is a front view of a transformer oil tank according to an embodiment of the utility model;

[0024] Figure 2 A top view of a transformer oil tank according to an embodiment of the utility model;

[0025] Figure 3 for Figure 1 AA section view in;

[0026] Figure 4 for Figure 2 BB section view in;

[0027] Figure 5 for Figure 4 The enlarged schematic diagram of point Ⅰ in FIG.

[0028] The components represented by the reference numerals in the figure are:

[0029] The utility model: 1. a casing; 2. a heat sink; 3. a piston driving device; 3a. a motor reducer; 3b. a turntable; 3c. a first shaft; 3d. a connecting rod; 3e. a second shaft; 3f. a connecting block; 4. a piston cylinder; 5. a one-way valve assembly; 5a. an air inlet pipe; 5a1. a tapered hole; 5b. a retaining ring; 5c. an elastomer; 5d. a sealing ball; 6. a check valve; 7. a connecting pipe; 8. a distribution pipe; 9. a nozzle; 10. a supporting member; 11. a piston. DETAILED DESCRIPTION

[0030] like Figures 1 to 3 As shown, a transformer oil tank comprises a box body 1 and a plurality of heat sinks 2 fixedly connected to the outer wall of the box body 1. Preferably, the heat sink 2 is in the shape of a fin. The design of the fin shape can effectively increase the surface area of ​​the heat sink, improve the efficiency of heat conduction, make the heat dissipation faster and more effective, and increase the contact area between heat and air, thereby improving the speed and efficiency of heat transfer, making the heat dissipation faster and more effective. A heat sink cooling device is provided on the box body 1, and the heat sink cooling device comprises a piston driving device 3, a piston cylinder 4, a one-way valve assembly 5, a check valve 6, a connecting pipe 7, a distribution pipe 8 and a piston 11. The piston cylinder 4 is fixedly installed on the box body 1. The outer wall is provided with a one-way valve assembly 5 that only allows air to flow from the outside to the inside. The two ends of the check valve 6 are respectively connected to the piston cylinder 4 and the connecting pipe 7. The check valve 6 only allows air to flow from the piston cylinder 4 to the connecting pipe 7. The other end of the connecting pipe 7 is connected to the distribution pipe 8. The distribution pipe 8 is arranged around the heat sink 2. Preferably, the distribution pipe 8 is fixedly connected to the upper part of the heat sink 2 to facilitate the fixing of the distribution pipe. The distribution pipe 8 is provided with a plurality of exhaust holes in the direction of the heat sink 2. Preferably, the exhaust holes provided in the distribution pipe 8 are evenly distributed. Preferably, a nozzle 9 is installed at the exhaust hole of the distribution pipe 8. The air nozzle can improve the heat dissipation efficiency of the surface of the target object by spraying air at high speed. By spraying cooling air, the heat on the surface of the target object can be quickly taken away, and the heat dissipation speed can be accelerated. The air nozzle can adjust the spray direction and spray angle to achieve directional heat dissipation of the local area of ​​the target object. In this way, the heat dissipation capacity can be effectively concentrated, thereby improving the heat dissipation effect. The piston 11 moves back and forth horizontally in the piston cylinder 4 under the drive of the piston drive device 3. Figure 1 , Figure 2 and Figure 4 As shown, the piston drive device 3 includes a motor reducer 3a, a turntable 3b, a first shaft 3c, a connecting rod 3d, a second shaft 3e and a connecting block 3f, wherein the motor reducer 3a is arranged on the housing 1, the turntable 3b is rotatably connected to the output shaft of the motor reducer 3a coaxially, the first shaft 3c is eccentrically arranged on the turntable 3b, one end of the connecting rod 3d is hinged to the turntable 3b through the first shaft 3c, and the other end is hinged to the connecting block 3f through the second shaft 3e, and the connecting block 3f is fixedly connected to the piston 11. The transformer oil tank cools the heat sink by conveying air to the heat sink through the heat sink cooling device arranged on the housing, thereby improving the heat dissipation performance of the transformer oil tank; through the piston drive device, the reciprocating movement of the piston in the piston cylinder can effectively compress the air and convey it to the distribution pipe, thereby improving the stability of air conveyance; through the nozzle installed at the exhaust hole of the distribution pipe, the air can be ejected at a high speed, thereby accelerating the circulation of the air and improving the cooling efficiency of the heat sink.

[0031] like Figures 1 to 5 As shown, the one-way valve assembly 5 includes an air intake pipe 5a, a retaining ring 5b, an elastomer 5c and a sealing ball 5d. The air intake pipe 5a is fixed to the outer wall of the piston cylinder 4 and is connected to the piston cylinder 4. A tapered hole 5a1 with a gradually decreasing aperture along the outlet direction is provided at the outlet of the air intake pipe 5a. Preferably, a filter screen is provided at the air inlet of the air intake pipe 5a. The filter screen can effectively block foreign objects such as dust, debris, insects, etc. that enter the air intake pipe, prevent them from entering the piston cylinder and the distribution pipe, and reduce damage and blockage to the piston cylinder and the distribution pipe; the retaining ring 5b is provided in the air intake pipe 5a, and the sealing ball 5d is provided The two ends of the elastomer 5c are respectively fixedly connected to the retaining ring 5b and the sealing ball 5d between the retaining ring 5b and the tapered hole 5a1 and can be in sealing contact with the tapered hole 5a1. Preferably, the elastomer 5c is a compression spring; the compression spring usually has a smaller size and volume, is suitable for occasions with limited space, and can achieve compact design and installation. The compression spring is usually made of high-strength and wear-resistant materials, has a long service life, can stably provide elastic support, and maintain a compressed state for a long time. The compression spring has high stability and reliability, can stably maintain elastic force, and is not easy to deform or damage.

[0032] like Figures 1 to 3 As shown, the distribution pipe 8 is fixedly connected to the housing 1 via a support member 10. Preferably, the support member 10 is a support plate. The fixed connection via the support member can effectively enhance the connection strength between the distribution pipe and the housing, ensuring that the distribution pipe will not loosen or fall off during operation, thereby ensuring the stability of the system.

[0033] like Figures 1 to 5 As shown, when in use, the motor reducer 3a is started, and the motor reducer 3a drives the turntable 3b to rotate, drives the connecting rod 3d to swing, thereby driving the connecting block 3f and the piston 11 to move back and forth in the piston cylinder 4, so that the air sucked from the one-way valve assembly 5 is compressed and enters the distribution pipe 8 through the check valve 6 and the connecting pipe 7, and finally blows the air to the heat sink 2 through the nozzle 9, thereby accelerating the circulation of air and improving the cooling efficiency of the heat sink. The transformer oil tank, through the piston driving device provided, can effectively compress the air and transport it to the distribution pipe through the reciprocating movement of the piston in the piston cylinder, thereby improving the stability of air transportation; through the nozzle installed at the exhaust hole of the distribution pipe, the air can be ejected at a high speed, thereby accelerating the circulation of air and improving the cooling efficiency of the heat sink.

Claims

1. A transformer oil tank, comprising a tank body (1) and a plurality of heat sinks (2) fixedly connected to the outer wall of the tank body (1), characterized in that: The box body (1) is provided with a heat sink cooling device, and the heat sink cooling device comprises a piston driving device (3), a piston cylinder (4), a one-way valve assembly (5), a check valve (6), a connecting pipe (7), a distribution pipe (8) and a piston (11). The piston cylinder (4) is fixedly mounted on the box body (1). The outer wall of the piston cylinder (4) is provided with a one-way valve assembly (5) that only allows air to flow from the outside to the inside. The two ends of the check valve (6) are respectively connected to the piston cylinder (4) and the connecting pipe (7). The other end of the connecting pipe (7) is connected to the distribution pipe (8). The distribution pipe (8) is arranged around the heat sink (2). The distribution pipe (8) is provided with a plurality of exhaust holes in the direction of the heat sink (2). The piston (11) moves back and forth horizontally in the piston cylinder (4) under the drive of the piston driving device (3); The piston drive device (3) comprises a motor reducer (3a), a turntable (3b), a first shaft (3c), a connecting rod (3d), a second shaft (3e) and a connecting block (3f); the motor reducer (3a) is arranged on a housing (1); the turntable (3b) is rotatably coaxially connected to an output shaft of the motor reducer (3a); the first shaft (3c) is eccentrically arranged on the turntable (3b); one end of the connecting rod (3d) is hinged to the turntable (3b) via the first shaft (3c); the other end is hinged to the connecting block (3f) via the second shaft (3e); and the connecting block (3f) is fixedly connected to the piston (11).

2. A transformer oil tank according to claim 1, characterized in that: The heat dissipation plate (2) is in the shape of a fin.

3. A transformer oil tank according to claim 1, characterized in that: The one-way valve assembly (5) comprises an air intake pipe (5a), a retaining ring (5b), an elastic body (5c) and a sealing ball (5d); the air intake pipe (5a) is fixed to the outer wall of the piston cylinder (4) and is in communication with the piston cylinder (4); a tapered hole (5a1) with a gradually decreasing aperture along the outlet direction is provided at the outlet of the air intake pipe (5a); the retaining ring (5b) is provided in the air intake pipe (5a); the sealing ball (5d) is provided between the retaining ring (5b) and the tapered hole (5a1) and can be in sealing contact with the tapered hole (5a1); and the two ends of the elastic body (5c) are respectively fixedly connected to the retaining ring (5b) and the sealing ball (5d).

4. A transformer oil tank according to claim 3, characterized in that: The air inlet of the air inlet pipe (5a) is provided with a filter screen.

5. A transformer oil tank according to claim 3, characterized in that: The elastic body (5c) is a compression spring.

6. A transformer oil tank according to claim 1, characterized in that: A nozzle (9) is installed at the exhaust hole of the distribution pipe (8).

7. A transformer oil tank according to claim 1, characterized in that: The exhaust holes formed in the distribution pipe (8) are evenly distributed.

8. A transformer oil tank according to claim 1, characterized in that: The distribution pipe (8) is fixedly connected to the upper part of the heat dissipation plate (2).

9. A transformer oil tank according to claim 1, characterized in that: The distribution pipe (8) is fixedly connected to the box body (1) via a support member (10).

10. A transformer oil tank according to claim 9, characterized in that: The support member (10) is a support plate.

Images