Coil oil channel for oil-immersed power transformer

Abstract

The utility model discloses a coil oil channel for an oil-immersed power transformer, and relates to the technical field of transformers. The utility model comprises a transformer main body, the transformer main body comprises a coil main body, a shell is arranged inside the transformer main body and on one side of the coil main body, an oil pipe is inserted and fixedly connected to the side wall of the shell, the oil pipe extends to the coil main body at one end away from the shell, a convex cavity is fixedly connected to the side of the shell facing away from the coil main body, a heat sink is inserted and arranged on the side wall of the convex cavity, a frame is arranged on the side of the convex cavity facing away from the shell, the frame comprises a recess, a heat dissipation fan is arranged inside the recess, and a frame is detachably arranged on the side of the frame facing away from the convex cavity. The utility model can cool the oil pipe well to avoid affecting the cooling effect of oil circulation, and a guardrail is arranged, the heat dissipation fan can be protected by the guardrail to avoid loss caused by accidentally touching the heat dissipation fan, and the guardrail is easy to replace.

Description

Technical Field

[0001] The utility model relates to the technical field of transformers, in particular to a coil oil channel for an oil-immersed power transformer. Background Art

[0002] Oil-immersed transformers are also called oil-immersed test transformers. Oil-immersed transformers have the characteristics of good heat dissipation, low loss, large capacity, and low price. At present, most of the power transformers running on the power grid are oil-immersed transformers, of which more than 80% adopt natural oil circulation cooling. The existing coil oil channel for oil-immersed power transformers cannot cool the oil pipe well when in use, which will affect the cooling effect of the oil circulation. Therefore, the inventor proposes a coil oil channel for oil-immersed power transformers to solve the above problems. Utility Model Content

[0003] In order to solve the problem that the existing coil oil channel for oil-immersed power transformer cannot cool the oil pipe well during use, the utility model aims to provide a coil oil channel for oil-immersed power transformer.

[0004] In order to solve the above technical problems, the utility model adopts the following technical solutions: a coil oil channel for an oil-immersed power transformer, comprising a transformer body, the transformer body comprising a coil body, a shell is arranged inside the transformer body and on one side of the coil body, an oil pipe is inserted and fixedly connected to the side wall of the shell, the oil pipe extends to the coil body at one end away from the shell, a convex cavity is fixedly connected to the side of the shell facing away from the coil body, a heat sink is inserted and arranged on the side wall of the convex cavity, a frame is arranged on the side of the convex cavity facing away from the shell, the frame comprises a recess, a heat dissipation fan is arranged inside the recess, a frame is detachably arranged on the side of the frame facing away from the convex cavity, and a guardrail is fixedly connected to the inner wall of the frame.

[0005] Preferably, hooks are fixedly connected to the four corners of the top surface of the transformer body, a base is fixedly connected to the bottom surface of the transformer body, a connecting pipe is inserted and fixedly connected to the top surface of the shell, the pipe mouth of the connecting pipe is connected to the oil pipe and fixed, the base is used to support the transformer body, and the transformer body can be lifted by the hooks, and convex rods are fixedly connected to the four corners of the side wall of the frame, one end of the convex rod facing away from the frame is fixedly connected to the side wall of the convex cavity, the frame is fixed to the convex cavity by the convex rod, and the end surface of the convex cavity is flush with the end surface of the transformer body.

[0006] Preferably, the side wall of the cooling fan is provided with a base, the base is fixed to the inner wall of the recess, one end of the heat sink extends into the shell, and the heat sink is in contact with the oil pipe, the cooling fan corresponds to the heat sink, and the cooling fan is installed through the base. The provided heat sink can increase the heat dissipation surface to dissipate heat and cool the oil pipe. The air flow rate can be accelerated by the cooling fan, and the cooling fan corresponds to the heat sink to improve the heat dissipation effect.

[0007] Preferably, the outer side wall of the frame is fixedly connected with a block, and the side wall of the frame is provided with a bayonet, the block corresponds to and cooperates with the bayonet, the side wall of the frame is rotatably connected with a damping turntable on one side of the bayonet, the side wall of the damping turntable is fixedly connected with a limit plate, and the limit plate corresponds to and cooperates with the block. When the frame needs to be replaced, the damping turntable is rotated to misalign the limit plate and the block. Then, the frame is pulled away from the frame so that the block is disengaged from the bayonet, and the frame can be removed to clean or replace the guardrail. The installation operation can be carried out by performing the reverse operation.

[0008] Compared with the prior art, the beneficial effects of the utility model are:

[0009] 1. The utility model can cool the oil pipe well to avoid affecting the cooling effect of oil circulation. A heat sink and a heat dissipation fan are arranged on one side of the oil pipe. The heat sink can increase the heat dissipation surface to dissipate heat and cool the oil pipe, and the air flow rate can be accelerated by starting the heat dissipation fan to improve the heat dissipation effect.

[0010] 2. The utility model is provided with a guardrail, through which the cooling fan can be protected to avoid damage caused by accidentally touching the cooling fan, and the guardrail is easy to replace. By rotating the damping turntable to dislocate the limit plate and the card block, the frame can be removed to clean or replace the guardrail. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0012] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0013] Figure 2 This is a schematic diagram of the internal structure of the transformer body of the utility model.

[0014] Figure 3This is a schematic diagram of the cooperation between the heat sink and the heat dissipation fan of the utility model.

[0015] Figure 4 It is an enlarged view of point A of the present utility model.

[0016] In the figure: 1. transformer body; 2. hook; 3. base; 4. coil body; 5. shell; 6. oil pipe; 7. connecting pipe; 8. convex cavity; 9. heat sink; 10. frame; 11. convex rod; 12. notch; 13. cooling fan; 14. bayonet; 15. damping turntable; 16. limit plate; 17. frame; 18. guardrail; 19. block. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] Example: Figure 1-4 As shown, the utility model provides a coil oil channel for an oil-immersed power transformer, including a transformer body 1, the transformer body 1 including a coil body 4, a shell 5 is arranged inside the transformer body 1 and on one side of the coil body 4, an oil pipe 6 is inserted and fixedly connected to the side wall of the shell 5, and the oil pipe 6 extends to the coil body 4 at one end away from the shell 5, a convex cavity 8 is fixedly connected to the side of the shell 5 facing away from the coil body 4, a heat sink 9 is inserted and arranged on the side wall of the convex cavity 8, a frame 10 is arranged on the side of the convex cavity 8 facing away from the shell 5, the frame 10 includes a recess 12, a heat dissipation fan 13 is arranged inside the recess 12, a frame 17 is detachably arranged on the side of the frame 10 facing away from the convex cavity 8, and a guardrail 18 is fixedly connected to the inner wall of the frame 17.

[0019] The four corners of the top surface of the transformer body 1 are fixedly connected with hooks 2, the bottom surface of the transformer body 1 is fixedly connected with a base 3, and the top surface of the shell 5 is inserted and fixedly connected with a connecting pipe 7, and the pipe mouth of the connecting pipe 7 is connected to the oil pipe 6 and is fixed.

[0020] By adopting the above technical solution, the base 3 is used to support the transformer body 1, and the transformer body 1 can be lifted by the hook 2.

[0021] The four corners of the side wall of the frame body 10 are fixedly connected with convex rods 11 , and one end of the convex rod 11 facing away from the frame body 10 is fixedly connected to the side wall of the convex cavity 8 .

[0022] By adopting the above technical solution, the frame 10 is fixed to the convex cavity 8 through the convex rod 11 , and the end surface of the convex cavity 8 is flush with the end surface of the transformer body 1 .

[0023] The side wall of the cooling fan 13 is provided with a base, which is fixed to the inner wall of the recess 12 . One end of the cooling fin 9 extends into the housing 5 , and the cooling fin 9 contacts the oil pipe 6 . The cooling fan 13 corresponds to the cooling fin 9 .

[0024] By adopting the above technical solution, the cooling fan 13 is installed through the base, and the heat sink 9 can increase the heat dissipation surface to dissipate heat and cool the oil pipe 6. The cooling fan 13 can accelerate the air flow rate, and the cooling fan 13 corresponds to the heat sink 9 to improve the heat dissipation effect.

[0025] The outer wall of the frame 17 is fixedly connected with a block 19, and the side wall of the frame 10 is provided with a bayonet 14, the block 19 corresponds to and cooperates with the bayonet 14, and the side wall of the frame 10 is rotatably connected with a damping turntable 15 on one side of the bayonet 14, and the side wall of the damping turntable 15 is fixedly connected with a limit plate 16, and the limit plate 16 corresponds to and cooperates with the block 19.

[0026] By adopting the above technical solution, when the frame 17 needs to be replaced, the damping turntable 15 is rotated to make the limit plate 16 and the block 19 misaligned, and then the frame 17 is pulled away from the frame 10 to make the block 19 disengage from the bayonet 14. The frame 17 can be removed to clean or replace the guardrail 18, and the installation operation can be carried out by performing the operation in reverse.

[0027] When the utility model is in use, the heat sink 9 can increase the heat dissipation surface to dissipate heat and cool the oil pipe 6. The air flow rate can be accelerated by starting the heat dissipation fan 13, and the heat dissipation fan 13 corresponds to the heat dissipation fin 9, so as to improve the heat dissipation effect. The heat dissipation fan 13 can be protected by the guardrail 18 to avoid damage caused by accidentally touching the heat dissipation fan 13.

[0028] When the guardrail 18 needs to be replaced, the damping turntable 15 is rotated to dislocate the limit plate 16 and the block 19. Then, the frame 17 is pulled away from the frame 10 to disengage the block 19 from the bayonet 14. The frame 17 can be removed to clean or replace the guardrail 18. When the guardrail 18 needs to be installed, the operation can be performed in reverse.

[0029] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

Claims

1. A coil oil channel for an oil-immersed power transformer, comprising a transformer body (1), characterized in that: The transformer body (1) comprises a coil body (4), a shell (5) is arranged inside the transformer body (1) and on one side of the coil body (4), an oil pipe (6) is inserted and fixedly connected to the side wall of the shell (5), and the oil pipe (6) extends to the coil body (4) at one end away from the shell (5), a convex cavity (8) is fixedly connected to the side of the shell (5) facing away from the coil body (4), a heat sink (9) is inserted and arranged on the side wall of the convex cavity (8), a frame (10) is arranged on the side of the convex cavity (8) facing away from the shell (5), the frame (10) comprises a recess (12), a heat sink fan (13) is arranged inside the recess (12), a frame (17) is detachably arranged on the side of the frame (10) facing away from the convex cavity (8), and a guardrail (18) is fixedly connected to the inner wall of the frame (17).

2. The coil oil passage for an oil-immersed power transformer according to claim 1, characterized in that: The four corners of the top surface of the transformer main body (1) are fixedly connected with hooks (2), and the bottom surface of the transformer main body (1) is fixedly connected with a base (3).

3. The coil oil passage for an oil-immersed power transformer according to claim 1, characterized in that: A connecting pipe (7) is inserted and fixedly connected to the top surface of the shell (5), and the pipe mouth of the connecting pipe (7) is connected to the oil pipe (6) and is fixed to the oil pipe (6).

4. The coil oil passage for an oil-immersed power transformer according to claim 1, characterized in that: The four corners of the side wall of the frame body (10) are all fixedly connected with convex rods (11), and one end of the convex rod (11) facing away from the frame body (10) is fixedly connected to the side wall of the convex cavity (8).

5. The coil oil passage for an oil-immersed power transformer according to claim 1, characterized in that: The side wall of the heat dissipation fan (13) is provided with a base, and the base is fixed to the inner wall of the recess (12).

6. The coil oil passage for an oil-immersed power transformer according to claim 1, characterized in that: The outer side wall of the frame body (17) is fixedly connected with a clamping block (19), the side wall of the frame body (10) is provided with a clamping opening (14), and the clamping block (19) corresponds to and cooperates with the clamping opening (14).

7. The coil oil passage for an oil-immersed power transformer according to claim 6, characterized in that: A damping turntable (15) is rotatably connected to the side wall of the frame (10) and on one side of the bayonet (14); a limiting plate (16) is fixedly connected to the side wall of the damping turntable (15); and the limiting plate (16) corresponds to and cooperates with the clamping block (19).

8. The coil oil passage for an oil-immersed power transformer according to claim 1, characterized in that: One end of the heat sink (9) extends into the housing (5), and the heat sink (9) is in contact with the oil pipe (6), and the heat dissipation fan (13) corresponds to the heat sink (9).

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