Insulation structure for transformer
By designing the scraper mechanism and the rotating rod seal design, the problem of residual insulating oil dirt on the inner wall of the transformer affecting new oil filling is solved, and the safe and stable use of the transformer is achieved.
Patent Information
- Application Number
- CN202422833638.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-20
- Publication Date
- 2025-09-23
- Estimated Expiration
- 2034-11-20
AI Technical Summary
When the insulating oil of a traditional transformer is replaced, the deteriorated insulating oil and dirt remaining on the inner wall affect the use of the new oil, causing the deterioration of the new oil and the dirt to affect the deterioration of the new oil, accelerating the deterioration of the new oil, which is not conducive to long-term use.
An insulating structure including a scraper mechanism is designed. The mounting plate and scraper connected by a slide rail are used to scrape residual insulating oil and dirt on the inner wall of the outer box. Combined with the design of a rotating rod and a sealing gasket, cleaning and sealing are achieved.
Effectively clean residual insulating oil and dirt to prevent contamination of new oil and ensure the safe use and long-term stability of the transformer.
Smart Images
Figure CN223378013U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of transformers, in particular to an insulation structure for a transformer. Background Art
[0002] A transformer is a device that uses the principle of electromagnetic induction to change AC voltage. Its main components include a primary coil, a secondary coil, and an iron core. Transformers generate heat during use, and insulating oil is typically used inside them to transfer heat to the fins on the outside of the transformer, increasing heat dissipation.
[0003] Transformers are critical equipment in power systems, and their performance and safety are directly linked to the stable operation of the power grid. Over time, insulating oil undergoes a series of changes and performance degradation, such as changes in oil quality, increased acidity, and increased moisture content. When insulating oil performance deteriorates or reaches replacement standards, it must be replaced with new oil.
[0004] Traditional transformer insulating oil replacement usually only involves releasing the insulating oil, while a large amount of deteriorated insulating oil still adheres to the inner wall of the transformer, affecting the normal use of the newly added insulating oil, accelerating the deterioration of the newly added insulating oil, and being detrimental to long-term use. Utility Model Content
[0005] The utility model discloses an insulation structure for a transformer, aiming to solve the technical problem that, in conventional transformer insulating oil replacement, the insulating oil is usually only released, and a large amount of deteriorated insulating oil is still adhered to the inner wall of the transformer, which affects the normal use of the newly added insulating oil, accelerates the deterioration of the newly added insulating oil, and is not conducive to long-term use.
[0006] In order to achieve the above purpose, the present invention adopts the following technical solutions:
[0007] An insulation structure for a transformer, comprising an outer box, a winding disposed inside the outer box, and:
[0008] The scraper mechanism includes a slide rail arranged on the inner wall of the outer box, the outer wall of the slide rail is slidably connected to a mounting plate, and the outer walls of the mounting plate are all provided with scrapers, and one side outer wall of the scraper contacts the inner wall of the outer box.
[0009] In this solution, when replacing the insulating oil, the insulating oil is first released, and then the mounting plate is pushed downward. The mounting plate moves downward together with the scraper, and the scraper scrapes off the residual insulating oil and dirt on the inner wall of the outer box to prevent contamination of the newly added insulating oil and protect the safe use of the transformer.
[0010] In a preferred embodiment, the top of the mounting plate is rotatably connected to the first rotating rod, and a sealing gasket is provided near the bottom of the circumferential outer wall of the first rotating rod, the top of the first rotating rod is connected to the second rotating rod, the top of the first rotating rod is provided with a slot, and the bottom of the second rotating rod is provided with an insert plate, the insert plate and the slot are adapted, a second plug hole is provided on one side outer wall of the insert plate, a first plug hole is provided on the outer wall of the first rotating rod, the same plug rod is inserted into the first plug hole and the second plug hole, a cover plate is provided on the top of the outer box, a fixing column is provided on the top of the cover plate, a threaded groove is provided on the inner wall of the fixing column, the first rotating rod is rotatably connected to the inner wall of the fixing column, a circular groove is provided on the bottom of the cover plate, and the sealing gasket fits into the circular groove.
[0011] When the scraper mechanism is used to clean the outer box by adopting the above scheme, the second rotating rod is installed on the top of the first rotating rod, and the second rotating rod is rotated to drive the first rotating rod to rotate, and the first rotating rod and the mounting plate move downward. When the first rotating rod moves out of the fixed column, the second rotating rod can be directly pressed downward to push the mounting plate to move downward, so as to easily scrape off the dirt on the inner wall of the outer box, which is convenient for the staff to use. After the inner wall of the outer box is cleaned, the second rotating rod and the mounting plate are lifted upward, and the first rotating rod is fixed in the fixed column. The sealing gasket is embedded in the circular groove to increase the sealing of the device, and the second rotating rod is taken out to complete the cleaning.
[0012] As can be seen from the above, an insulation structure for a transformer includes an outer box, a winding is arranged inside the outer box, and further includes:
[0013] The scraper mechanism includes a slide rail mounted on the inner wall of the outer box. The outer wall of the slide rail is slidably connected to a mounting plate. Scrapers are provided on all four outer walls of the mounting plate. One outer wall of each scraper contacts the inner wall of the outer box. The utility model provides an insulation structure for a transformer that scrapes residual insulating oil and dirt from the inner wall of the outer box, preventing contamination of newly added insulating oil and ensuring safe operation of the transformer. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a schematic diagram of the overall structure of an insulation structure for a transformer proposed by the utility model.
[0015] Figure 2 This is a schematic diagram of the internal structure of an insulation structure for a transformer proposed by the utility model.
[0016] Figure 3 The utility model is a schematic diagram of a scraper mechanism structure for the insulation structure of a transformer.
[0017] Figure 4 This is a schematic structural diagram of the second rotating rod portion of an insulation structure for a transformer proposed by the present invention.
[0018] In the accompanying drawings: 1. First rotating rod; 2. Fixed column; 3. Outer box; 4. Base; 5. Oil outlet pipe; 6. Second rotating rod; 7. Cover plate; 8. Heat sink; 9. Slide rail; 10. Mounting plate; 11. Winding; 12. Circular groove; 13. Sealing gasket; 14. Scraper; 15. Insert rod; 16. First jack; 17. Insert plate; 18. Slot; 19. Second jack. DETAILED DESCRIPTION
[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.
[0020] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.
[0021] The utility model discloses an insulation structure for a transformer, which is mainly used in a scenario where conventional transformer insulating oil replacement usually only involves draining the insulating oil, and a large amount of deteriorated insulating oil still adheres to the inner wall of the transformer, affecting the normal use of the newly added insulating oil, accelerating the deterioration of the newly added insulating oil, and being detrimental to long-term use.
[0022] Reference Figure 2 and Figure 3 , an insulation structure for a transformer, comprising an outer box 3, a winding 11 being arranged inside the outer box 3, and further comprising:
[0023] The scraper mechanism includes a slide rail 9 arranged on the inner wall of the outer box 3. The outer wall of the slide rail 9 is slidably connected to a mounting plate 10. Scrapers 14 are provided on the outer walls of the mounting plate 10. One side outer wall of the scraper 14 contacts the inner wall of the outer box 3.
[0024] Specifically, when replacing the insulating oil, the insulating oil is first released, and then the mounting plate 10 is pushed downward. The mounting plate 10 moves downward together with the scraper 14, and the scraper 14 scrapes off the residual insulating oil and dirt on the inner wall of the outer box 3 to prevent contamination of the newly added insulating oil and protect the safe use of the transformer.
[0025] Reference Figure 2 、 Figure 3 and Figure 4In a preferred embodiment, the top of the mounting plate 10 is rotatably connected to the first rotating rod 1, and a sealing gasket 13 is provided near the bottom of the circumferential outer wall of the first rotating rod 1. The top of the first rotating rod 1 is connected to the second rotating rod 6, and a slot 18 is opened at the top of the first rotating rod 1, and a plug-in plate 17 is provided at the bottom of the second rotating rod 6. The plug-in plate 17 and the slot 18 are adapted to each other, and a second plug-in hole 19 is opened on the outer wall of one side of the plug-in plate 17. A first plug-in hole 16 is opened on the outer wall of the first rotating rod 1, and the same plug-in rod 15 is inserted into the first plug-in hole 16 and the second plug-in hole 19. A cover plate 7 is provided at the top of the outer box 3, and a fixing column 2 is provided at the top of the cover plate 7. The inner wall of the fixing column 2 is provided with a threaded groove. The first rotating rod 1 is rotatably connected to the inner wall of the fixing column 2, and a circular groove 12 is opened at the bottom of the cover plate 7, and the sealing gasket 13 fits with the circular groove 12.
[0026] Specifically, when using the scraper mechanism to clean the outer box 3, the second rotating rod 6 is installed on the top of the first rotating rod 1, and the second rotating rod 6 is rotated to drive the first rotating rod 1 to rotate, and the first rotating rod 1 and the mounting plate 10 move downward. When the first rotating rod 1 moves out of the fixed column 2, the second rotating rod 6 can be directly pressed downward to push the mounting plate 10 to move downward, easily scraping off the dirt on the inner wall of the outer box 3, which is convenient for the staff to use. After the inner wall of the outer box 3 is cleaned, the second rotating rod 6 and the mounting plate 10 are lifted upward, and the first rotating rod 1 is fixed in the fixed column 2. The sealing gasket 13 is embedded in the circular groove 12 to increase the sealing of the device, and the second rotating rod 6 is taken out to complete the cleaning.
[0027] Reference Figure 1 In a preferred embodiment, a base 4 is provided at the bottom of the outer box 3 , symmetrically distributed heat sinks 8 are provided on the outer wall of the outer box 3 , and an oil outlet pipe 5 is provided on one side of the outer wall of the outer box 3 .
[0028] Specifically, during installation, the base 4 is fixed tightly. There are fixing holes on the base 4, which are fixed firmly with bolts to ensure the stability of the outer box 3, thereby ensuring the safe use of the transformer. The heat sink 8 increases the heat dissipation area of the transformer. The transformer continuously generates heat during use. By quickly transferring the heat in the transformer to the heat sink 8, the heat dissipation effect of the transformer is increased.
[0029] Working principle: When replacing the insulating oil, first release the insulating oil, install the second rotating rod 6 on the top of the first rotating rod 1, rotate the second rotating rod 6 to drive the first rotating rod 1 to rotate, and the first rotating rod 1 and the mounting plate 10 move downward. When the first rotating rod 1 moves out of the fixed column 2, you can directly press the second rotating rod 6 downward to push the mounting plate 10 to move downward. The mounting plate 10 moves downward together with the scraper 14, and the scraper 14 scrapes off the residual insulating oil and dirt on the inner wall of the outer box 3.
[0030] The above description is merely a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. The replacements described may be partial structures, devices, or method steps, or they may be complete technical solutions. Any equivalent replacements or modifications based on the technical solution and the concept of the present invention shall be covered by the scope of protection of the present invention.
Claims
1. An insulation structure for a transformer, comprising an outer box (3), wherein a winding (11) is arranged inside the outer box (3), characterized in that: Also includes: The scraper mechanism comprises a slide rail (9) arranged on the inner wall of the outer box (3); the outer wall of the slide rail (9) is slidably connected to a mounting plate (10); the outer walls of the mounting plate (10) are all provided with scrapers (14); the outer wall of one side of the scraper (14) contacts the inner wall of the outer box (3).
2. The insulation structure for a transformer according to claim 1, characterized in that: The top of the mounting plate (10) is rotatably connected to a first rotating rod (1), and a sealing gasket (13) is provided on the circumferential outer wall of the first rotating rod (1) near the bottom.
3. The insulation structure for a transformer according to claim 2, characterized in that: The top of the first rotating rod (1) is connected to the second rotating rod (6), the top of the first rotating rod (1) is provided with a slot (18), and the bottom of the second rotating rod (6) is provided with an inserting plate (17), and the inserting plate (17) is adapted to the slot (18).
4. The insulation structure for a transformer according to claim 3, characterized in that: A second insertion hole (19) is formed on an outer wall of one side of the insertion plate (17), a first insertion hole (16) is formed on an outer wall of the first rotating rod (1), and the same insertion rod (15) is inserted into the first insertion hole (16) and the second insertion hole (19).
5. The insulation structure for a transformer according to claim 4, characterized in that: A cover plate (7) is provided on the top of the outer box (3), a fixing column (2) is provided on the top of the cover plate (7), a threaded groove is provided on the inner wall of the fixing column (2), the first rotating rod (1) is rotatably connected to the inner wall of the fixing column (2), a circular groove (12) is provided on the bottom of the cover plate (7), and the sealing gasket (13) is fitted with the circular groove (12).
6. The insulation structure for a transformer according to claim 1, characterized in that: The bottom of the outer box (3) is provided with a base (4), and the outer wall of the outer box (3) is provided with symmetrically distributed heat sinks (8).
7. The insulation structure for a transformer according to claim 1, characterized in that: An oil outlet pipe (5) is provided on one outer wall of the outer box (3).