A protective oil-immersed transformer
By designing a foldable protective cloth and support rod structure on the oil-immersed transformer, the problem of dust adhesion during storage or transportation of voltage bushings is solved, achieving all-round protection for voltage bushings and ensuring cleanliness and service life.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG JINPAN TRANSFORMER CO LTD
- Filing Date
- 2025-05-26
- Publication Date
- 2026-05-26
Smart Images
Figure CN224287915U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of transformer technology, specifically to a protective oil-immersed transformer. Background Technology
[0002] Transformers are one of the important pieces of equipment in the power supply and distribution systems of industrial and mining enterprises and civil buildings. They reduce the 10(6)kV or 35kV network voltage to the 230 / 400V bus voltage used by users. These products are suitable for AC 50(60)Hz, with a maximum three-phase rated capacity of 2500kVA (maximum single-phase rated capacity of 833kVA, single-phase transformers are generally not recommended). They can be used indoors or outdoors. When the capacity is 315kVA and below, they can be installed on poles. The ambient temperature should not be higher than 40℃ and lower than -25℃, with a maximum daily average temperature of 30℃ and a maximum annual average temperature of 20℃. The relative humidity should not exceed 90% (at an ambient temperature of 25℃), and the altitude should not exceed 1000m. Oil-immersed transformers are a type of transformer. The transformer body (windings and core) of an oil-immersed transformer is installed in an oil tank filled with transformer oil. The oil tank is welded from steel plates.
[0003] Existing oil-immersed transformers have multiple voltage bushings (including high-voltage bushings and low-voltage bushings) installed on top. However, these bushings are constantly exposed to the external environment. Therefore, during storage or transportation, dust floating in the environment will adhere to the surface of the voltage bushings, affecting their cleanliness. This means that the surface of the voltage bushings must be cleaned before use, making them unusable directly. Furthermore, the dust may cause corrosion and other damage to the voltage bushings, affecting their lifespan.
[0004] Therefore, the applicant has made beneficial designs and found a way to solve the above problems. The technical solution to be introduced below is generated in this context. Utility Model Content
[0005] The present invention provides a protective oil-immersed transformer to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution:
[0007] A protective oil-immersed transformer includes a transformer body. The top of the transformer body is provided with several voltage bushings. Support rods are provided at the four corners of the top of the transformer body. Protective covers are provided on the tops of the four support rods. Sliding sliders are slidably mounted on the four support rods. A surrounding plate is provided around the top of the transformer body to protect the voltage bushings. A folded protective cloth is provided around the top of the surrounding plate to protect the voltage bushings. A crossbar is provided between the sliding sliders. The top of the folded protective cloth is connected to the crossbar. An insertion rod is provided on the top of each sliding slider. A limiting hole is provided on the top of each insertion rod. Insertion holes are provided at the four corners of the bottom of the protective covers to cooperate with the insertion rods. Sliding holes are provided on the sidewalls of the insertion holes. Limiting rods that cooperate with the limiting holes are slidably mounted in the sliding holes. Springs are provided in the sliding holes.
[0008] Preferably, each of the limiting rods is provided with a push rod, the push rods penetrate the surface of the protective cover, and the push rods are all movable.
[0009] Preferably, the two ends of the spring abut against the sliding hole and the limiting rod, respectively.
[0010] Beneficial effects
[0011] The above-mentioned technical solutions of one or more of the protective oil-immersed transformers provided in this utility model embodiment have at least one of the following technical effects:
[0012] This utility model, through the above-described technical solution, allows for the upward movement of a slider during the storage or transportation of an oil-immersed transformer. This enables the insertion rod to be inserted into the insertion hole, and the limiting rod to be inserted into the limiting hole. At this point, the folded protective cloth can be unfolded upward to surround and protect several voltage bushings. Furthermore, the protective cover can be used to cover and protect the top of several voltage bushings. This provides comprehensive protection for the voltage bushings, preventing dust from the environment from adhering to the surface of the voltage bushings and causing corrosion or other damage during the storage or transportation of the oil-immersed transformer. This ensures the cleanliness of the voltage bushing surface and extends the service life of the oil-immersed transformer during storage or transportation. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0014] Figure 2 This is a cross-sectional structural diagram of the present invention;
[0015] Figure 3 This is a schematic diagram of the unfolded structure of the folded protective fabric of this utility model;
[0016] Figure 4 for Figure 2 A magnified structural diagram at point A.
[0017] The correspondence between the labels and component names in the attached figures is as follows:
[0018] 1. Transformer body; 2. Voltage bushing; 3. Support rod; 4. Protective cover; 5. Sliding block; 6. Enclosure; 7. Folded protective cloth; 8. Crossbar; 9. Insert rod; 10. Limiting hole; 11. Insertion hole; 12. Sliding hole; 13. Limiting rod; 14. Spring; 15. Push rod. Detailed Implementation
[0019] The technical solution of this utility model will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0020] In the description of this utility model, it should be understood that the terms "upper", "lower", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0021] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0022] To avoid excessive and unnecessary details, well-known structures or functions will not be described in detail in the following embodiments.
[0023] like Figure 1-4 The diagram shown is a structural schematic of a protective oil-immersed transformer according to a preferred embodiment of the present invention.
[0024] In this embodiment, a transformer body 1 is included. A plurality of voltage bushings 2 are provided on the top of the transformer body 1. Support rods 3 are provided at the four corners of the top of the transformer body 1, and all four support rods 3 are perpendicular to the top wall of the transformer body 1. Protective covers 4 are provided on the top of each support rod 3, covering and protecting the tops of the voltage bushings 2. Sliding sliders 5 are provided on each support rod 3. A surrounding plate 6 is provided around the top of the transformer body 1, and a folded protective cloth 7 is provided around the top of the surrounding plate 6 to protect the voltage bushings 2. The folded protective cloth 7 can be unfolded upwards or... The slide block 5 is folded downwards for storage. A crossbar 8 is provided between the slide blocks 5. The top of the folded protective cloth 7 is connected to the crossbar 8. The crossbar 8 is used to support the top of the folded protective cloth 7. Each slide block 5 has an insertion rod 9 at its top, which is perpendicular to the top wall of the slide block 5. Each insertion rod 9 has a limiting hole 10 at its top. Each of the four corners of the bottom of the protective cover 4 has an insertion hole 11 that matches the insertion rod 9. Each insertion hole 11 has a sliding hole 12 on its side wall, which is perpendicular to the insertion hole 11. Each sliding hole 12 has a limiting rod 13 that matches the limiting hole 10 that slides within it. Each sliding hole 12 has a spring 14 inside it. When storing or transporting an oil-immersed transformer, move the slider 5 upward so that the insertion rod 9 is inserted into the insertion hole 11, and insert the limiting rod 13 into the limiting hole 10. At this time, the folded protective cloth 7 can be unfolded upward to surround and protect the several voltage bushings 2. Then, the protective cover 4 is used to cover and protect the top of the several voltage bushings 2, thereby achieving all-round protection for the voltage bushings 2. When using the oil-immersed transformer, by pulling the limiting rod 13 out of the limiting hole 10, the limiting of the insertion rod 9 is removed, and the slider 5 is moved downward so that the folded protective cloth 7 is folded downward to be stored, thereby exposing the several voltage bushings 2 for wiring operations.
[0025] In this embodiment, each of the limiting rods 13 is provided with a push rod 15, which penetrates the surface of the protective cover 4 and can be moved. By pushing the push rod 15, the limiting rod 13 can be pulled out from the limiting hole 10, thereby pulling the insertion rod 9 out from the insertion hole 11 and folding the protective cloth 7 downward to expose the voltage sleeve 2.
[0026] In this embodiment, the two ends of the spring 14 abut against the sliding hole 12 and the limiting rod 13 respectively. The spring 14 provides power to the limiting rod 13. When the insertion rod 9 is inserted into the insertion hole 11, the spring 14 pushes the limiting rod 13 into the limiting hole 10.
[0027] The protective oil-immersed transformer of this utility model can be installed, connected or set in a common mechanical manner, and can be implemented as long as it can achieve its beneficial effect.
[0028] All technologies not described in detail in this utility model are known technologies. Those skilled in the art can easily implement this utility model based on their understanding of this specification, and the contents shown in the accompanying drawings are part of this specification.
[0029] The above description, in conjunction with specific embodiments, provides a further detailed explanation of the present utility model. It should not be construed that the specific implementation of the present utility model is limited to these descriptions. For those skilled in the art, several simple deductions or substitutions can be made without departing from the concept of the present utility model, and all such deductions or substitutions should be considered to fall within the scope of protection defined by the claims submitted by the present utility model.
Claims
1. A transformer of the oil-immersed type of the shielded type, comprising a transformer body (1), characterized in that: The transformer body (1) top is equipped with several voltage bushings (2), the transformer body (1) top four corners are equipped with support rods (3), the support rod (3) top is equipped with protective cover (4), the support rod (3) are all equipped with sliding block (5), the transformer body (1) top is equipped with around several voltage bushings (2) with fence (6), the fence (6) top along a week is equipped with the folding protective cloth (7) for the protection of voltage bushings (2), the sliding block (5) between be equipped with cross bar (8), the folding protective cloth (7) top with the cross bar (8) is connected, the sliding block (5) top are all equipped with plug rod (9), the plug rod (9) top are all equipped with limiting hole (10), the protective cover (4) bottom four corners are all equipped with the insertion hole (11) with the plug rod (9), the insertion hole (11) side wall all are equipped with slide hole (12), the slide hole (12) are all equipped with the limiting rod (13) with the cooperation limiting hole (10), the slide hole (12) are all equipped with spring (14).
2. A shielded oil immersed transformer as claimed in claim 1, wherein: The limiting rod (13) surface is equipped with push rod (15), the push rod (15) all penetrate the protective cover (4) surface, and the push rod (15) can be moved.
3. A shielded oil immersed transformer as claimed in claim 1, wherein: The spring (14) both ends are respectively with slide hole (12), limiting rod (13) abut.