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CN-224232449-U - Oil tank and transformer

CN224232449UCN 224232449 UCN224232449 UCN 224232449UCN-224232449-U

Abstract

The embodiment of the application discloses an oil tank and a transformer, which relate to the technical field of electrical engineering, wherein the oil tank comprises a tank body, a cover plate and a sealing gasket, the top of the tank body is provided with an opening, the cover plate is arranged on the opening, the sealing gasket is arranged on the upper edge of the opening and is abutted against the cover plate, the tank body is provided with an upper end face close to the cover plate, the upper end face is provided with a limit groove, and the sealing gasket is accommodated in the limit groove.

Inventors

  • WANG PEI
  • RAO SHENGBO
  • KONG FANWU

Assignees

  • 合肥阳光电气设备有限公司

Dates

Publication Date
20260512
Application Date
20250512

Claims (9)

  1. 1. An oil tank, comprising: the top of the box body (1) is provided with an opening (1 a); A cover plate (2) provided to cover the opening (1 a), and A gasket (3) provided on the upper edge of the opening (1 a) and abutting against the cover plate (2); The box body (1) is provided with an upper end face (11) close to the cover plate (2), the upper end face (11) is provided with a limit groove, and the sealing gasket (3) is accommodated in the limit groove (13); The upper end face (11) faces the cover plate (2) and is provided with two limiting protrusions (111), the two limiting protrusions (111) encircle the opening (1 a), and the two limiting protrusions (111) and the upper end face (11) enclose to form the limiting groove (13).
  2. 2. The tank according to claim 1, characterized in that the limit groove (13) comprises a first limit groove (131) and a second limit groove (132), the tank (1) being provided with an extension (121) towards the cover plate (2); The extension part (121), one of the limit protrusions (111) and the upper end face (11) enclose to form a first limit groove (131), and the other of the limit protrusions (111) and the upper end face (11) enclose to form a second limit groove (132).
  3. 3. The oil tank according to claim 2, wherein the gasket (3) comprises a first gasket (31) and a second gasket (32), the first gasket (31) and the second gasket (32) being provided in the first limit groove (131) and the second limit groove (132), respectively.
  4. 4. A tank according to claim 3, wherein the second gasket (32) has a perimeter greater than the perimeter of the first gasket (31), the second gasket (32) being provided on a side of the first gasket (31) remote from the extension (121).
  5. 5. The oil tank according to claim 1, characterized in that the limit projection (111) is of an integral structure with the tank body (1).
  6. 6. -Tank according to any one of claims 1 to 5, characterised in that it further comprises a stop structure (5), which stop structure (5) is provided between the upper end face (11) and the cover plate (2) and is in abutment with the tank body (1) and the cover plate (2), respectively.
  7. 7. The fuel tank according to claim 6, wherein the upper end surface (11) surrounds and protrudes from the opening (1 a), and the stopper structure (5) includes a plurality of stoppers (51) provided on the upper end surface (11) and arranged at uniform intervals in the circumferential direction of the opening (1 a).
  8. 8. The fuel tank according to any one of claims 1 to 5, further comprising a fastener (4), wherein the fastener (4) comprises a bolt (41) and a nut (42), a first through hole is provided at one end of the tank body (1) close to the cover plate (2), a second through hole is provided at the cover plate (2), the bolt (41) is inserted through the first through hole and the second through hole, and the nut (42) abuts against one of the tank body (1) and the cover plate (2).
  9. 9. A transformer comprising a tank according to any one of claims 1 to 8.

Description

Oil tank and transformer Technical Field The embodiment of the application relates to the technical field of electrical engineering, in particular to an oil tank and a transformer. Background An oil-immersed transformer is an electrical device widely used in power systems. In order to facilitate the installation, maintenance and overhaul of the transformer, the oil tank comprises a tank body and a cover plate, and the cover plate is arranged at the opening of the tank body. At normal use period, the box and the cover plate need to ensure good sealing performance, so that external moisture, dust and impurities are prevented from entering the oil tank, insulating oil and electrical components in the transformer are protected, and the service life of the transformer is prolonged. In traditional oil-immersed transformer design, can set up sealed pad in the lid department of apron and box, and because long-time sunshine shines and air contact, leads to its material to take place ageing, probably can cause sealed inefficacy. Disclosure of utility model The application provides an oil tank, which aims to further ensure the sealing performance of the oil tank and prolong the service stability of the oil tank. An embodiment of the present application provides an oil tank, including: The top of the box body is provided with an opening; a cover plate covering the opening, and The sealing gaskets are arranged on the upper edge of the opening and are all in butt joint with the cover plate; The box is close to the cover plate and is provided with an upper end face, the upper end face is provided with a limit groove, and the sealing gasket is accommodated in the limit groove. In an embodiment, the upper end face is provided with two limiting protrusions facing the cover plate, the two limiting protrusions are arranged around the opening, and the two limiting protrusions and the upper end face enclose to form the limiting groove. In one embodiment, the limit groove comprises a first limit groove and a second limit groove, and the box body is provided with an extension part towards the cover plate; The extension part, one of the limit protrusions and the upper end face enclose to form the first limit groove, and the two limit protrusions and the upper end face enclose to form the second limit groove. In an embodiment, the sealing gasket comprises a first sealing gasket and a second sealing gasket, and the first sealing gasket and the second sealing gasket are respectively arranged in the first limit groove and the second limit groove. In one embodiment, the perimeter of the second gasket is greater than the perimeter of the first gasket, and the second gasket is disposed on a side of the first gasket remote from the extension. In an embodiment, the fuel tank further comprises a stop structure, and the stop structure is arranged between the upper end face and the cover plate and is respectively abutted to the tank body and the cover plate. In an embodiment, the upper end surface surrounds and extends out of the opening, and the stop structure comprises a plurality of stop parts, wherein the stop parts are arranged on the upper end surface and are uniformly arranged at intervals along the circumferential direction of the opening. In an embodiment, the oil tank further comprises a fastener, the fastener comprises a bolt and a nut, a first through hole is formed in one end, close to the cover plate, of the tank body, a second through hole is formed in the cover plate, the bolt penetrates through the first through hole and the second through hole, and the nut is in butt joint with one of the tank body and the cover plate. The application also proposes a transformer comprising a tank as described above. According to the embodiments provided by the application, the limiting groove is formed in the upper end face, so that the limiting groove can be used for accommodating the sealing gasket, and the irradiation of sunlight and the contact with air are avoided, and further, the sealing gasket positioned on the inner side can be prevented from aging and sealing failure caused by long-time irradiation of ultraviolet rays, and the sealing performance of the oil tank in long-term use is ensured. Specifically, the limit groove is arranged on the upper end face of the box body and can be formed by grooving the upper end face, and also can be formed by enclosing the limit structure on the upper end face, so that the limit groove is not limited in this aspect, the limit groove can not only play a role in mounting and limiting the sealing gasket, but also can accommodate the sealing gasket, and the ageing of the sealing gasket caused by the irradiation of sunlight and the contact with air is avoided, the sealing performance of the oil tank is further ensured, and the use stability of the sealing gasket is prolonged. Drawings In order to more clearly illustrate the embodiments of the present application or the technical solutions of the prior