Outdoor oil-immersed transformer

Abstract

The utility model relates to the technical field of transformers, and discloses an oil-immersed transformer placed outdoors, which comprises a box body, an oil-immersed transformer, an oil-immersed transformer core, an oil-immersed transformer core and an oil-immersed transformer core, wherein a sealing plate is arranged at the top end of the box body; a first spring is elastically connected to the top end of the interior of the box body, and a limiting rod is fixedly installed at the bottom end of the box body. And a scraping plate located on the surface of the limiting rod is fixedly mounted at the bottom end of the first spring. In the rotating process of a pushing rod, the pushing rod can push a hinge block to move on the surface of a fixing rod, then the pushing rod can push a scraper to descend, a first spring can be stretched in the descending process of the scraper, then the surface of the scraper makes contact with the inner wall of the box body, and therefore when the scraper moves, oil attached to the inner wall of the box body can be scraped away; by pushing the scraping plate to move, oil attached to the inner wall of the box body can be scraped off, the situation that the heat dissipation effect of the device is affected by residual oil is avoided, the quality of new oil injection is improved, and the performance of the transformer is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of transformers, and more specifically, to an oil-immersed transformer placed outdoors. Background Art

[0002] Oil-immersed transformers are widely used in power systems. However, some problems may occur after long-term operation. Since the oil inside the existing transformer is in a static state for a long time, oil deposition or changes in oil density may occur after a long period of operation. This change may cause the heat dissipation effect of the transformer to deteriorate, because the deposited oil may hinder the transfer of heat, making it difficult for the heat to dissipate. Therefore, the oil needs to be replaced. When changing the oil of the oil-immersed transformer, due to the certain adhesion of the oil, a large amount of old oil may adhere to the inside of the transformer. These old oils may not only hinder the injection of new oil, but also affect the quality of the new oil. Because the mixture of new and old oils may further affect the density and heat dissipation performance of the oil, thereby affecting the performance of the transformer. Utility Model Content

[0003] In order to overcome the deficiencies of the prior art, the utility model provides an oil-immersed transformer placed outdoors, which has the advantages of improving the quality of new oil injection, thereby ensuring the performance of the transformer.

[0004] To achieve the above purpose, the utility model provides the following technical solution: an outdoor oil-immersed transformer, comprising:

[0005] A box body, wherein a sealing plate is provided on the top of the box body;

[0006] The top end of the box body is elastically connected to a spring 1, and a limiting rod is fixedly installed on the bottom end of the box body; a scraper located on the surface of the limiting rod is fixedly installed on the bottom end of the spring 1; a fixing rod is fixedly installed inside the scraper, and a hinge block is slidably connected to the surface of the fixing rod, and the front end of the box body is rotatably connected to a rotating rod, one end of the rotating rod extends to the inside of the box body and is fixedly installed with a pushing rod, and one end of the pushing rod is hinged to the hinge block.

[0007] As a preferred technical solution of the utility model, the limit rod is designed to be symmetrical about the center of the box body, and the surface of the limit rod is smooth.

[0008] As a preferred technical solution of the utility model, an oil drain pipe is fixedly installed at the bottom end of the box body, and an oil valve is arranged on the surface of the oil drain pipe.

[0009] As a preferred technical solution of the utility model, heat sink 1 is fixedly installed at both the front and rear ends of the box body, and heat sink 2 is fixedly installed at both the left and right ends of the box body.

[0010] As a preferred technical solution of the utility model, a sealing groove is provided at the top of the box body, and a sealing ring located inside the sealing groove is fixedly mounted at the bottom end of the sealing plate.

[0011] As a preferred technical solution of the utility model, slots are provided at the tops of the box body and the sealing plate, a plug plate is slidably connected inside the slot, a limiting hole is provided on the surface of the plug plate, a square shell is fixedly installed at both the front and rear ends of the box body, a spring 2 is elastically connected inside the square shell, an plug block is fixedly installed on the opposite side of the spring 2, and a connecting rod is fixedly installed on the opposite side of the plug block.

[0012] As a preferred technical solution of the utility model, a mounting plate is fixedly mounted on the bottom end of the box body, and the mounting plate is symmetrically designed with respect to the center of the box body.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] 1. The utility model opens the oil valve, and then the oil in the box body is discharged from the inside of the oil drain pipe. When the oil is discharged, the rotating rod can be rotated. When the rotating rod rotates, it will drive the push rod to rotate. During the rotation of the push rod, the push rod will push the hinge block to move on the surface of the fixed rod, and then the push rod will push the scraper to descend. During the descent of the scraper, the spring 1 will be stretched, and then the surface of the scraper will contact the inner wall of the box body, so that when the scraper moves, the oil attached to the inner wall of the box body will be scraped off. By pushing the scraper to move, the oil attached to the inner wall of the box body can be scraped off, so as to avoid the residual oil affecting the heat dissipation effect of the device, thereby improving the quality of new oil injection, and ensuring the performance of the transformer.

[0015] 2. The utility model places the sealing plate on the top of the box body, and then aligns the sealing plate with the slot on the top of the box body, then the plug plate can be reinserted into the slot, then the bottom end of the slot will contact the surface of the plug block, then the plug block will be pushed to move, when the plug block moves, it will squeeze the spring 2, when the limiting hole is aligned with the plug block, the compressed spring 2 will push the plug block into the limiting hole, so that the plug plate can be fixed, then the plug plate will fix the sealing plate, and finally by fixing the plug plate, the sealing plate can be fixed without using fixing bolts, thereby facilitating the operator to disassemble and install the sealing plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a schematic diagram showing the structural sealing ring of the utility model;

[0018] Figure 3 This is a schematic diagram of a cross-sectional box body of the utility model;

[0019] Figure 4 This is a schematic diagram showing the interior of the structural box of the utility model;

[0020] Figure 5 For this utility model Figure 3 A in the figure is an enlarged structural diagram.

[0021] In the figure: 1. box body; 2. sealing plate; 3. spring 1; 4. scraper; 5. limit rod; 6. fixing rod; 7. hinge block; 8. push rod; 9. rotating rod; 10. oil drain pipe; 11. oil valve; 12. heat sink 1; 13. heat sink 2; 14. slot; 15. plug-in plate; 16. limit hole; 17. sealing groove; 18. sealing ring; 19. square shell; 20. spring 2; 21. plug-in block; 22. connecting rod; 23. mounting plate. DETAILED DESCRIPTION

[0022] 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.

[0023] like Figures 1 to 5 As shown, the utility model provides an outdoor oil-immersed transformer, comprising:

[0024] A box body 1, a sealing plate 2 is provided at the top of the box body 1;

[0025] A spring 3 is elastically connected to the top of the box body 1, and a limiting rod 5 is fixedly installed at the bottom end of the box body 1; a scraper 4 located on the surface of the limiting rod 5 is fixedly installed at the bottom end of the spring 3; a fixing rod 6 is fixedly installed inside the scraper 4, and a hinge block 7 is slidably connected to the surface of the fixing rod 6. The front end of the box body 1 is rotatably connected to a rotating rod 9, one end of the rotating rod 9 extends to the inside of the box body 1 and is fixedly installed with a push rod 8, one end of which is hinged to the hinge block 7.

[0026] During the oil discharge process, the operator can rotate the rotating rod 9 to rotate the pushing rod 8, and then the pushing rod 8 pushes the hinge block 7 to move on the surface of the fixed rod 6, and then the pushing rod 8 will push the scraper 4 to move. When the scraper 4 moves, the spring 3 will be stretched. Then, during the movement of the scraper 4, the oil remaining on the inner wall of the box body 1 will be scraped off. When the rotating rod 9 is released, the stretched spring 3 will pull the scraper 4 to reset.

[0027] The limiting rod 5 is designed to be symmetrical with respect to the center of the box body 1 , and the surface of the limiting rod 5 is smooth.

[0028] Through the design of the limiting rod 5 , when the scraper 4 moves, it will move on the surface of the limiting rod 5 , and then the limiting rod 5 will limit the scraper 4 .

[0029] An oil drain pipe 10 is fixedly installed at the bottom end of the box body 1 , and an oil valve 11 is arranged on the surface of the oil drain pipe 10 .

[0030] Through the design of the oil drain pipe 10 and the oil valve 11 , when the oil in the housing 1 needs to be drained, the oil valve 11 can be opened, and then the oil inside the housing 1 can be drained from the inside of the oil drain pipe 10 .

[0031] Among them, heat sink 1 12 is fixedly installed at both the front and rear ends of the box body 1, and heat sink 2 13 is fixedly installed at both the left and right ends of the box body 1.

[0032] Through the design of the heat sink 12 and the heat sink 2 13 , when the device is working, the heat sink 12 and the heat sink 2 13 can dissipate heat for the device.

[0033] A sealing groove 17 is formed at the top of the box body 1 , and a sealing ring 18 located inside the sealing groove 17 is fixedly mounted at the bottom of the sealing plate 2 .

[0034] Through the design of the sealing groove 17 and the sealing ring 18 , when the sealing plate 2 is placed on the bottom end of the box body 1 , the sealing ring 18 will enter the interior of the sealing groove 17 , thereby increasing the sealing effect of the box body 1 .

[0035] Among them, the top of the box body 1 and the sealing plate 2 are both provided with a slot 14, the inside of the slot 14 is slidably connected with a plug plate 15, and the surface of the plug plate 15 is provided with a limiting hole 16. The front and rear ends of the box body 1 are fixedly installed with a square shell 19, and the inside of the square shell 19 is elastically connected with a spring 20. An insert block 21 is fixedly installed on the side opposite to the spring 20, and a connecting rod 22 is fixedly installed on the side opposite to the insert block 21.

[0036] Through the design of the slot 14 and the plug board 15, after the device maintenance is completed, the plug board 15 can be reinserted into the slot 14, and then the bottom end of the plug board 15 will contact the surface of the plug block 21, and then the plug block 21 will move, and then the plug block 21 will squeeze the spring 20. When the limiting hole 16 is aligned with the plug block 21, the compressed spring 20 will push the plug block 21 into the inside of the limiting hole 16, and then fix the plug board 15. When disassembly is required, just push the connecting rod 22, and then the connecting rod 22 will drive the plug block 21 to move, and then move the plug block 21 out of the inside of the limiting hole 16.

[0037] A mounting plate 23 is fixedly mounted on the bottom end of the box body 1 , and the mounting plate 23 is designed to be symmetrical with respect to the center of the box body 1 .

[0038] Through the design of the mounting plate 23, the mounting plate 23 can be placed on the supporting bracket, and then the device can be fixed on the bracket using fixing bolts.

[0039] The working principle and use process of this utility model:

[0040] First, the operator can fix the mounting plate 23 on the supporting bracket, and then the device can be driven. When the oil inside the box body 1 needs to be replaced during long-term work, the oil valve 11 needs to be opened, and then the oil inside the box body 1 will be discharged from the inside of the oil drain pipe 10. When the oil is discharged, the rotating rod 9 can be rotated. When the rotating rod 9 rotates, it will drive the pushing rod 8 to rotate. During the rotation of the pushing rod 8, the pushing rod 8 will push the hinge block 7 to move on the surface of the fixed rod 6, and then the pushing rod 8 will push the scraper 4 to descend. During the descent of the scraper 4, the spring 3 will be stretched, and then the surface of the scraper 4 will contact the inner wall of the box body 1, so that when the scraper 4 moves, the oil attached to the inner wall of the box body 1 will be scraped off. After the oil is discharged, the connecting rod 22 can be pushed to move, and then the connecting rod 22 will drive the plug block 21 to move. When the plug block 21 moves, the spring 20 will be compressed, and then the plug block 21 will move. The plug-in plate 15 can be inserted into the slot 14 again after the sealing plate 2 is placed on the top of the box 1, and then the sealing plate 2 is aligned with the slot 14 at the top of the box 1. The plug-in plate 15 can then be inserted into the slot 14 again. The bottom end of the slot 14 will contact the surface of the plug-in block 21, and then the plug-in block 21 will be pushed to move. When the plug-in block 21 moves, the spring 20 will be squeezed. When the limiting hole 16 is aligned with the plug-in block 21, the compressed spring 20 will push the plug-in block 21 into the limiting hole 16, so that the plug-in plate 15 can be fixed. Then the plug-in plate 15 will fix the sealing plate 2, and then the device can continue to work.

[0041] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An oil-immersed transformer placed outdoors, characterized in that: Included are: A box body (1), wherein a sealing plate (2) is provided at the top end of the box body (1); The top end of the box body (1) is elastically connected to a spring 1 (3), and the bottom end of the box body (1) is fixedly installed with a limit rod (5); the bottom end of the spring 1 (3) is fixedly installed with a scraper (4) located on the surface of the limit rod (5); the scraper (4) is fixedly installed with a fixing rod (6), and the surface of the fixing rod (6) is slidably connected with a hinge block (7); the front end of the box body (1) is rotatably connected with a rotating rod (9), one end of the rotating rod (9) extends to the inside of the box body (1) and is fixedly installed with a push rod (8), and one end of the push rod (8) is hinged to the hinge block (7).

2. The oil-immersed transformer placed outdoors according to claim 1, characterized in that: The limiting rod (5) is designed to be symmetrical with respect to the center of the box body (1), and the surface of the limiting rod (5) is smooth.

3. The outdoor oil-immersed transformer according to claim 1, characterized in that: An oil drain pipe (10) is fixedly mounted on the bottom end of the box body (1), and an oil valve (11) is arranged on the surface of the oil drain pipe (10).

4. The oil-immersed transformer placed outdoors according to claim 1, characterized in that: The front and rear ends of the box body (1) are both fixedly mounted with heat sink 1 (12), and the left and right ends of the box body (1) are both fixedly mounted with heat sink 2 (13).

5. The oil-immersed transformer placed outdoors according to claim 1, characterized in that: The top end of the box body (1) is provided with a sealing groove (17), and the bottom end of the sealing plate (2) is fixedly mounted with a sealing ring (18) located inside the sealing groove (17).

6. The oil-immersed transformer placed outdoors according to claim 1, characterized in that: The top ends of the box body (1) and the sealing plate (2) are both provided with a slot (14), the interior of the slot (14) is slidably connected with an insert plate (15), the surface of the insert plate (15) is provided with a limiting hole (16), the front and rear ends of the box body (1) are both fixedly installed with a square shell (19), the interior of the square shell (19) is elastically connected with a second spring (20), an insert block (21) is fixedly installed on the side opposite to the second spring (20), and a connecting rod (22) is fixedly installed on the side opposite to the insert block (21).

7. The oil-immersed transformer placed outdoors according to claim 1, characterized in that: A mounting plate (23) is fixedly mounted on the bottom end of the box body (1), and the mounting plate (23) is designed to be symmetrical with respect to the center of the box body (1).

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