Oil-immersed transformer

Abstract

The utility model relates to the technical field of transformers, and discloses an oil-immersed transformer which comprises a base, a side plate is fixedly connected to the upper portion of the base, a fixing seat is slidably connected to the upper portion of the base, a box body is fixedly connected to the upper portion of the fixing seat, a gear is rotatably connected to the interior of the base, and a rack is slidably connected to the interior of the base. The end, away from the gear, of the rack is fixedly connected with a clamping plate, the clamping plate is slidably connected to the interior of the fixing seat and the interior of the base, the lower portion of the gear is fixedly connected with a worm wheel, the interior of the base is rotationally connected with a worm, and the worm is meshed with the worm wheel. According to the detachable transformer, the base, the gear, the rack, the clamping plate, the worm gear, the worm and the positioning assembly are matched, so that the transformer is convenient to detach, the cooling fins, the cooling fan, the dustproof plate and the detaching assembly are matched, heat dissipation of the transformer is achieved, and the dustproof plate and the cooling fan are convenient to replace and maintain.

Description

Technical Field

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

[0002] In modern society, the importance of power equipment is self-evident, and they play a vital role in various fields. With the rapid development of social economy, the demand for power equipment is also growing continuously. Among these power equipment, oil-immersed transformer is undoubtedly a key and important equipment. Its performance and reliability have become the focus of extensive attention and research. The working principle of oil-immersed transformer is to use the principle of electromagnetic induction to convert the input AC voltage into output voltage.

[0003] After searching, Chinese patent announcement number: CN219677009U discloses an oil-immersed transformer, including an oil tank, a cavity is provided inside the oil tank, oil is filled inside the cavity, a transformer assembly is installed inside the cavity, and it is characterized in that one side of the oil tank is connected to an oil pump body and a cooling box in sequence through a pipeline, the cooling box includes a circular cooling cavity, an oil outlet pipe is installed on the top of the cooling box, and the other end of the oil outlet pipe is connected to the cavity, and a plurality of external fins and internal fins are provided on the cooling box. Compared with the traditional transformer heat dissipation method, the transformer increases the heat dissipation surface area and can achieve efficient heat dissipation. At the same time, the split design of the transformer body and the cooling box will not occupy the internal installation space of the oil tank and will not reduce the internal capacity of the transformer.

[0004] In the above utility model, the transformer body and the supporting device are fixed together, and the structure is fixed. When replacement or maintenance is required, the transformer needs to be disassembled together with the supporting device, which is inconvenient. Therefore, an oil-immersed transformer is proposed to solve the above problem. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides an oil-immersed transformer, which aims to improve the problem in the prior art that the transformer body and the supporting device are fixed together and the structure is fixed. When replacement or maintenance is required, the transformer needs to be disassembled together with the supporting device, which is inconvenient to disassemble.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an oil-immersed transformer comprises a base, the upper part of the base is fixedly connected to a side plate, the upper part of the base is slidably connected to a fixed seat, the upper part of the fixed seat is fixedly connected to a box, a gear is rotatably connected inside the base, a rack is slidably connected inside the base, the rack is fixedly connected to a clamping plate at one end away from the gear, the clamping plate is slidably connected to the inside of the fixed seat, the clamping plate is slidably connected to the inside of the base, a worm wheel is fixedly connected to the lower part of the gear, a worm is rotatably connected to the inside of the base, the worm and the worm wheel are meshed, a hand wheel is fixedly connected to one side of the worm, and a positioning assembly is arranged inside the base.

[0007] Furthermore, the positioning assembly includes an upper cover plate, which is fixedly connected to the upper part of the box body, a limiting groove is opened on the upper part of the side plate, the upper cover plate is slidably connected inside the limiting groove, a positioning groove is opened inside the base, and the fixed seat is slidably connected inside the positioning groove.

[0008] Furthermore, the box body is fixedly connected with cooling fins around, the middle of the side panel is fixedly connected with a dustproof plate 1, one side of the dustproof plate 1 is abutted with a cooling fan, the outer side of the cooling fan is abutted with a dustproof plate 2, and disassembly components are provided on both sides of the dustproof plate 2.

[0009] Furthermore, the disassembly assembly includes a fixed block, which is fixedly connected to one side of the second dustproof plate, a limiting rod is fixedly connected inside the fixed block, two clamping blocks are slidably connected to the outer periphery of the limiting rod, a compression spring is fixedly connected between the two clamping blocks, a sliding block is fixedly connected to the outer side of the clamping block, and the clamping block is slidably connected to the inside of the side plate.

[0010] Furthermore, a positioning column is fixedly connected to one side of the dustproof plate 2 close to the heat dissipation fan, and positioning holes are provided inside the dustproof plate 1 and the heat dissipation fan, and the positioning column is slidably connected inside the positioning hole.

[0011] Furthermore, the compression spring is sleeved on the outer periphery of the limiting rod, a clamping groove is opened inside the side plate, and the clamping block is slidably connected inside the clamping groove.

[0012] Furthermore, the worm is inserted into the interior of the base, and the gear is rotationally connected to the interior of the base.

[0013] Furthermore, a slide groove is provided on the upper portion of the base, and the fixing seat is slidably connected inside the slide groove.

[0014] The utility model has the following beneficial effects:

[0015] 1. In the utility model, through the cooperation of the base, gear, rack, card plate, worm wheel, worm, hand wheel, fixed seat and positioning assembly, the fixed seat is slid into the positioning groove, and the hand wheel is rotated to make the worm drive the worm wheel to rotate, so that the worm wheel drives the gear to rotate, and the rack drives the card plate to fix the fixed seat inside the base, so as to realize the easy disassembly of the transformer and the fixation of the transformer.

[0016] 2. In the utility model, through the cooperation of the heat dissipation fins, the heat dissipation fan, the dustproof plate 1, the dustproof plate 2 and the disassembly assembly, the heat dissipation fan accelerates the heat dissipation of the transformer, the dustproof plate protects the heat dissipation fan to prevent accidental damage caused by exposed fan blades, and prevents excessive dust from adhering to the fan blades and affecting the heat dissipation, the sliding block is slid to make the card block fall off the card slot, and then the dustproof plate 1 is taken out, and then the heat dissipation fan is removed, thereby realizing the heat dissipation of the transformer and facilitating the replacement and maintenance of the dustproof plate and the heat dissipation fan. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional schematic diagram of an oil-immersed transformer proposed by the utility model;

[0018] Figure 2 This is a structural schematic diagram of a positioning slot of an oil-immersed transformer proposed by the utility model;

[0019] Figure 3 This is a schematic diagram of the structure of a worm gear of an oil-immersed transformer proposed by the utility model:

[0020] Figure 4 This is a schematic structural diagram of a cooling fan of an oil-immersed transformer proposed by the utility model;

[0021] Figure 5 for Figure 4 Enlarged view of point A in the middle.

[0022] Legend:

[0023] 1. Base; 2. Side panel; 3. Box; 4. Cooling fins; 5. Upper cover; 6. Fixed seat; 7. Worm; 8. Worm wheel; 9. Gear; 10. Rack; 11. Card plate; 12. Hand wheel; 13. Slide; 14. Positioning slot; 15. Dustproof plate 1; 16. Cooling fan; 17. Dustproof plate 2; 18. Positioning column; 19. Positioning hole; 20. Fixed block; 21. Slider; 22. Card block; 23. Limit rod; 24. Compression spring; 25. Limit slot. DETAILED DESCRIPTION

[0024] 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.

[0025] Reference Figure 1-3 The utility model provides an embodiment: an oil-immersed transformer, including a base 1, a side plate 2 is fixedly connected to the upper part of the base 1, a fixed seat 6 is slidably connected to the upper part of the base 1, a box 3 is fixedly connected to the upper part of the fixed seat 6, a gear 9 is rotatably connected to the inside of the base 1, a rack 10 is slidably connected to the inside of the base 1, a clamping plate 11 is fixedly connected to the end of the rack 10 away from the gear 9, the clamping plate 11 is slidably connected to the inside of the fixed seat 6, the clamping plate 11 is slidably connected to the inside of the base 1, a worm wheel 8 is fixedly connected to the lower part of the gear 9, a worm 7 is rotatably connected to the inside of the base 1, the worm 7 and the worm wheel 8 are meshed, a hand wheel 12 is fixedly connected to one side of the worm 7, and a positioning assembly is arranged inside the base 1. The positioning assembly includes an upper cover plate 5, the upper cover plate 5 is fixedly connected to the upper part of the box 3, a limiting groove 25 is provided on the upper part of the side plate 2, the upper cover plate 5 is slidably connected to the inside of the limiting groove 25, a positioning groove 14 is provided inside the base 1, and the fixed seat 6 is slidably connected to the inside of the positioning groove 14.

[0026] Specifically, the base 1 provides overall support and stability, and the side panels 2 improve the strength of the overall structure. The fixed seat 6 is the lower part of the transformer, which is used to support the transformer, and the box body 3 is the main body of the transformer. The gear 9 is used to drive the rack 10 to move, and the movement of the rack 10 drives the card plate 11 to move. The card plate 11 is used to fix the fixed seat 6 inside the base 1. The worm wheel 8 and the worm 7 are used to drive the gear 9 to rotate. Since the worm wheel 8 and the worm 7 are self-locking, the card plate 11 can only be moved by rotating the hand wheel 12. The hand wheel 12 is used to facilitate the rotation of the worm 7. The upper cover plate 5 cooperates with the limit groove 25, and the positioning groove 14 cooperates with the fixed seat 6 to facilitate the positioning and installation of the transformer.

[0027] Reference Figure 1 , Figure 4 and Figure 5The box body 3 is fixedly connected with heat dissipation fins 4 around, a dustproof plate 15 is fixedly connected to the middle of the side plate 2, a heat dissipation fan 16 is abutted on one side of the dustproof plate 15, a dustproof plate 2 17 is abutted on the outside of the heat dissipation fan 16, and a disassembly component is arranged on both sides of the dustproof plate 2 17. The disassembly component includes a fixed block 20, the fixed block 20 is fixedly connected to one side of the dustproof plate 2 17, a limit rod 23 is fixedly connected inside the fixed block 20, two clamping blocks 22 are slidably connected to the outer periphery of the limit rod 23, a compression spring 24 is fixedly connected between the two clamping blocks 22, a slider 21 is fixedly connected to the outer side of the clamping block 22, and the clamping block 22 is slidably connected inside the side plate 2. The compression spring 24 is sleeved on the outer periphery of the limit rod 23, a clamping slot is opened inside the side plate 2, and the clamping block 22 is slidably connected inside the clamping slot.

[0028] Specifically, the heat dissipation fins 4 are used to increase the contact area between the transformer and the air, thereby increasing the heat dissipation area. The dustproof plate 15 and the dustproof plate 2 17 are used to prevent dust from entering the heat dissipation fan 16, and to protect the heat dissipation fan 16 from accidental contact with the fan blades and causing accidental injury. The fixing block 20 is used to store and disassemble the components, the limit rod 23 is used to limit the movement trajectory of the card block 22, the compression spring 24 is used to squeeze the card block 22 so that the card block 22 is stuck in the card slot, thereby fixing the dustproof plate 2 17 on the side plate 2, and the slider 21 is used to facilitate the movement of the card block 22.

[0029] Reference Figure 1 , Figure 3 and Figure 4 The dustproof plate 17 is fixedly connected with a positioning column 18 on one side close to the heat dissipation fan 16. The dustproof plate 15 and the heat dissipation fan 16 are provided with positioning holes 19 inside, and the positioning column 18 is slidably connected inside the positioning hole 19. The worm 7 is inserted into the base 1, and the gear 9 is rotatably connected inside the base 1. A slide groove 13 is provided on the upper part of the base 1, and the fixed seat 6 is slidably connected inside the slide groove 13.

[0030] Specifically, the positioning column 18 cooperates with the positioning hole 19 to fix the heat dissipation fan 16 when installing the dustproof plate 17, and can also be removed together when disassembling. The slide groove 13 is used to limit the fixing seat 6.

[0031] Working principle: When installing the transformer box 3, slide the fixing seat 6 into the positioning groove 14 along the slide groove 13, and also let the upper cover plate 5 slide into the limit groove 25, then rotate the hand wheel 12 to drive the worm 7 to rotate, and the rotation of the worm 7 drives the worm wheel 8 to rotate, so that the gear 9 drives the rack 10 to transmit, and the rack 10 moves to drive the card plate 11 to move, so that the card plate 11 slides into the fixing seat 6 and the base 1, and fixes the fixing seat 6 inside the base 1. The box 3 is cooled by the heat dissipation fins 4 and the heat dissipation fan 16. When the heat dissipation fan 16 and the dustproof plate 17 need to be replaced or maintained, slide the slider 21 to make the card block 22 disengage from the card slot, and then remove the dustproof plate 17, and also remove the heat dissipation fan 16 from the periphery of the positioning column 18.

[0032] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An oil-immersed transformer, comprising a base (1), characterized in that: The upper part of the base (1) is fixedly connected to a side plate (2), the upper part of the base (1) is slidably connected to a fixed seat (6), the upper part of the fixed seat (6) is fixedly connected to a box body (3), the base (1) is rotatably connected to a gear (9), the base (1) is slidably connected to a rack (10), the rack (10) is fixedly connected to one end away from the gear (9) with a clamping plate (11), the clamping plate (11) is slidably connected to the inside of the fixed seat (6), the clamping plate (11) is slidably connected to the inside of the base (1), the gear (9) is fixedly connected to a worm wheel (8) at the lower part, the base (1) is rotatably connected to a worm (7), the worm (7) and the worm wheel (8) are meshed, one side of the worm (7) is fixedly connected to a hand wheel (12), and a positioning component is provided inside the base (1).

2. The oil-immersed transformer according to claim 1, characterized in that: The positioning assembly comprises an upper cover plate (5), the upper cover plate (5) is fixedly connected to the upper part of the box body (3), a limiting groove (25) is provided on the upper part of the side plate (2), the upper cover plate (5) is slidably connected inside the limiting groove (25), a positioning groove (14) is provided inside the base (1), and the fixed seat (6) is slidably connected inside the positioning groove (14).

3. The oil-immersed transformer according to claim 2, characterized in that: The box body (3) is fixedly connected with heat dissipation fins (4) on all sides, the middle of the side plate (2) is fixedly connected with a dustproof plate (15), one side of the dustproof plate (15) is abutted with a heat dissipation fan (16), the outer side of the heat dissipation fan (16) is abutted with a dustproof plate (17), and both sides of the dustproof plate (17) are provided with disassembly components.

4. The oil-immersed transformer according to claim 3, characterized in that: The disassembly assembly comprises a fixed block (20), the fixed block (20) is fixedly connected to one side of the second dustproof plate (17), a limiting rod (23) is fixedly connected inside the fixed block (20), two clamping blocks (22) are slidably connected to the outer periphery of the limiting rod (23), a compression spring (24) is fixedly connected between the two clamping blocks (22), a sliding block (21) is fixedly connected to the outer side of the clamping block (22), and the clamping block (22) is slidably connected to the inside of the side plate (2).

5. The oil-immersed transformer according to claim 4, characterized in that: The second dustproof plate (17) is fixedly connected with a positioning column (18) on one side close to the heat dissipation fan (16), and positioning holes (19) are provided inside the first dustproof plate (15) and the heat dissipation fan (16), and the positioning column (18) is slidably connected inside the positioning hole (19).

6. The oil-immersed transformer according to claim 4, characterized in that: The compression spring (24) is sleeved on the outer circumference of the limiting rod (23); a clamping groove is provided inside the side plate (2); and the clamping block (22) is slidably connected inside the clamping groove.

7. The oil-immersed transformer according to claim 2, characterized in that: The worm (7) is inserted into the interior of the base (1), and the gear (9) is rotatably connected to the interior of the base (1).

8. The oil-immersed transformer according to claim 1, characterized in that: A sliding groove (13) is provided on the upper portion of the base (1), and the fixing seat (6) is slidably connected inside the sliding groove (13).

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