CN217719225U - Tank assembly for a transformer and transformer - Google Patents
Tank assembly for a transformer and transformer Download PDFInfo
- Publication number
- CN217719225U CN217719225U CN202221972561.4U CN202221972561U CN217719225U CN 217719225 U CN217719225 U CN 217719225U CN 202221972561 U CN202221972561 U CN 202221972561U CN 217719225 U CN217719225 U CN 217719225U
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- transformer
- tank
- case
- tank assembly
- lid
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Abstract
The present application relates to a tank assembly for a transformer and a transformer, the tank assembly comprising: a case having an opening; a case cover closing the opening; and a fixing member, which is an integral member having a first fixing portion and a second fixing portion. The first fixing portion is welded to an outer side surface of the case cover, and the second fixing portion is welded to an outer side surface of the case body. According to the tank assembly of the transformer and the transformer including the same, metal particles generated in the welding and cutting processes can be prevented from entering the interior of the transformer tank.
Description
Technical Field
The utility model relates to a case subassembly and including the transformer of this case subassembly, this transformer is the large-scale transformer especially for the transformer.
Background
In the art, the encapsulation of the transformer is achieved by welding the tank lid of the transformer to the tank. Fig. 1 shows a schematic partial cross-sectional view of a prior art tank assembly for a transformer. As shown in fig. 1, the lower surface of the lid 22 is welded to the upper surface of the rim 16 of the housing 12, typically by an intermittent welding technique, to close the opening 14 of the housing 12. That is, the weld (i.e., weld line) of cover 22 and rim 16 is between the lower surface of cover 22 and the upper surface of rim 16. At this time, there is a technical drawback that the solder may enter the tank filled with the transformer oil under a high pressure at the time of soldering, so that explosion may occur.
After the transformer is assembled and certain technical conditions are met, an integrity assembly test is carried out. In some cases, after testing, the box cover needs to be opened to perform a core check on the transformer. At this point, the weld line needs to be cut to separate the lid and the box.
When the weld line is cut to separate the case lid and the case body, metal particles easily fall into the inside of the case body. In addition, metal particles may be adsorbed on the cover, and then may be shaken to fall into the case when the cover is lifted off the case of the transformer. Both of these conditions will seriously affect the quality of the transformer.
And case lid and border welded position, easy deformation in the gouging cut process, the poor problem of sealing appears easily after the welding once more.
In addition, high-temperature particles generated in the high-temperature gouging cutting process also easily enter the box body filled with insulating oil, and then the risk of deflagration can be generated.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a transformer that is used for tank subassembly of transformer and includes this tank subassembly can prevent that the metal particle that produces in welding and cutting process from entering into inside the transformer box.
According to an aspect of the present invention, there is provided a tank assembly for a transformer, comprising: a case having an opening; a case cover closing the opening; and a fixing member, which is an integral member having a first fixing portion and a second fixing portion. The first fixing portion is welded to an outer side surface of the case cover, and the second fixing portion is welded to an outer side surface of the case body.
Further, a rim is arranged around the opening of the box body, and the box cover covers the rim to close the opening. The outer side surface of the lid includes a lid top surface and a lid peripheral surface. The outer side surface of the case includes a rim peripheral surface and a rim bottom surface. The first fixing portion of the fixing member is welded to the cover top surface and/or the cover peripheral surface of the cover, and the second fixing portion of the fixing member is welded to the rim peripheral surface and/or the rim bottom surface of the case.
Further, the peripheral edge of the cover extends radially to at least partially overlap the rim of the case.
Further, the rim of the box extends radially beyond the periphery of the box cover.
Further, the fixing member is L-shaped. The horizontal portion of the L-shaped fixing member as the first fixing portion is fixed to the lid top surface of the lid, and the vertical portion of the fixing member as the second fixing portion is fixed to the rim peripheral surface of the case.
Further, the box subassembly still includes the locating piece, and this locating piece sets up on the lower surface of case lid. When the box cover closes the opening, the positioning block is matched with the inner wall of the box body, so that the box cover is positioned relative to the box body.
Further, the tank assembly includes a plurality of fixing members and a plurality of positioning blocks.
Further, the tank assembly is integrally cylindrical, and the plurality of fixing members and the plurality of positioning blocks are circumferentially arranged.
Further, the box assembly is overall in a rectangular parallelepiped shape, and includes four sides, each of which is provided with at least two fixing members and at least two positioning blocks.
According to another aspect of the present invention, there is provided a transformer comprising the aforementioned tank assembly for a transformer.
According to the utility model discloses a metal particle or solder that produce when having avoided welding and cutting enter into inside the box that is used for the case subassembly of transformer and the transformer including this case subassembly, through the fixed component, welds in the outside of case lid and box, makes the welding position shift to the upper portion of case lid and the lateral part at the border of box by the contact site of box and case lid.
In addition, according to the case subassembly and the transformer of this application, the lower surface of case lid has the locating piece, and the locating piece can help the case lid installation location in the exact position.
Because the positioning block positioned inside and the fixing component positioned outside exist, when the transformer is installed and used, inward or outward stress can be resisted, so that the transformer is not easy to deform and is more stable.
Drawings
The above and other features and advantages of the present invention will become more apparent to those of ordinary skill in the art by describing in detail preferred embodiments thereof with reference to the attached drawings, in which:
fig. 1 is a partial cross-sectional schematic view of a prior art case cover and case body combined together.
Fig. 2 is a schematic partial cross-sectional view of a tank assembly according to the present application.
FIG. 3 is a schematic partial cross-sectional view of a cover, a securing member, and a spacer joined together according to the present application.
Fig. 4 is a perspective view of a transformer according to the present application.
Fig. 5 is an enlarged view of detail a of fig. 4.
Wherein the reference numbers are as follows:
| reference numerals | Means of |
| 1 | |
| 12 | |
| 14 | Opening of the |
| 16 | |
| 161 | Rim |
| 162 | |
| 2 | |
| 22 | |
| 221 | Top surface of |
| 222 | Peripheral surface of |
| 24 | |
| 241 | |
| 242 | |
| 26 | Locating block |
Detailed Description
In order to make the purpose, technical solution and advantages of the present invention clearer, the following embodiments are used to illustrate the present invention in further detail.
Fig. 2 to 5 show a tank assembly for a transformer and a transformer comprising the tank assembly according to a preferred embodiment of the present invention. The tank assembly 2 includes a tank body 12, a tank cover 22, and a fixing member 24. The tank has an opening 14 through which components inside the transformer, such as the transformer core, can be mounted and removed. The opening 14 opens upward. The cover 22 is used to close the transformer 1 by covering the opening 14. The fixing member 24 has a first fixing portion 241 and a second fixing portion 242. The first fixing portion 241 is welded to an outer side surface of the case cover 22, and the second fixing portion 242 is welded to an outer side surface of the case body 12.
As shown in FIG. 2, a rim 16 is provided around the opening 14 of the housing 12. A cover 22 covers the rim 16 to close the opening 14.
The outer side surface of the case cover 22 and the outer side surface of the case 12 refer to surfaces exposed to the outside of the transformer 1, excluding surfaces where the case cover 22 contacts the case 12. The outer side surface of the cover 22 includes a cover top surface 221 and a cover peripheral surface 222. The outer side surface of the case 12 includes a rim peripheral surface 161 and a rim bottom surface 162.
The first fixing portion 241 of the fixing member 24 is welded to the cover top surface 221 and/or the cover circumferential surface 222 of the cover 22. The second fixing portion 242 of the fixing member 24 is welded to the rim peripheral surface 161 and/or the rim bottom surface 162 of the case 12.
The peripheral edge of the cover 22 extends in a radial direction to at least partially overlap the rim 16 of the case 12, the rim 16 at least partially supporting the cover 22.
As can be seen from fig. 2, the rim 16 of the case body 12 extends beyond the peripheral edge of the case cover 22 in the radial direction, so that the fixing member 24 can be easily welded to the rim peripheral surface 161 of the rim 16 and the case cover top surface 221.
The securing member 24 may be L-shaped. A horizontal portion of the L-shaped fixing member 24 as a first fixing portion 241 is fixed to the cover top surface 221 of the cover 22, and a vertical portion of the fixing member 24 as a second fixing portion 242 is fixed to the rim circumferential surface 161 of the case 12.
According to the utility model discloses an L shape fixed component connects and fixes case lid 22 and border 16 at the outside of transformer 1, makes the welding position shift to the upper portion of case lid 22 and the lateral part at border 16 from the contact site of case lid 22 and border 16. If the weld is at the contact between the lid 22 and the rim 16, solder may enter the tank under high pressure during welding due to the gap between the lid 22 and the rim 16, and metal particles may fall into the tank or be adsorbed under the lid during cutting with a gas planer, which may cause serious quality problems. The present application, however, shifts the welding position to the outside of the transformer 1, avoiding the quality problems described above.
Furthermore, as shown in fig. 2 and 3, the tank assembly 2 further comprises a positioning block 26. A positioning block 26 is provided on a lower surface of the cover 22, and when the cover 22 closes the opening 14, the positioning block 26 engages with an inner wall of the case 12, thereby positioning the cover 22 relative to the case 12.
Inside the transformer 1, positioning blocks 26 cooperate with the inner walls of the tank 12, and outside the transformer 1, fixing members 24 weld the tank cover 22 and the rim 16, so that the tank 12 and the tank cover 22 can be supported and fixed in both the inner and outer dimensions, and therefore can resist the stresses to which they are subjected during installation and use, so that the transformer 1 can remain solid.
According to an embodiment of the present invention, as shown in fig. 4 and 5, wherein fig. 5 is an enlarged view of detail a in fig. 4, tank assembly 2 comprises a plurality of fixing members 24 and a plurality of positioning blocks 26. The sizes and the numbers of the fixing members 24 and the positioning blocks 26 are selected according to the types and the sizes of steel materials used for the box body 12 and the box cover 22 of the transformer 1 and the requirements of the transformer 1 on positive pressure and negative pressure.
For example, the tank assembly 2 may be entirely cylindrical, with a plurality of fixing members 24 and a plurality of positioning blocks 26 arranged circumferentially.
Furthermore, as shown in fig. 4, the tank assembly 2 may also be of a rectangular parallelepiped shape as a whole, including four sides. In one embodiment, each side is provided with at least two securing members 24 and at least two locating blocks 26.
It should be noted that after placing the lid 22 into the opening 14 of the case 12, the lid 22 and the case 12 may be temporarily secured using a clamp, holding the lid 22 from moving, prior to welding the lid 22 and the case 12. The clamp may be an F-clamp that clamps the cover 22 and the housing 12 externally.
According to another embodiment of the present invention, a transformer 1 is provided, the transformer 1 comprising the aforementioned tank assembly 2.
According to the utility model discloses a case subassembly and transformer have inside locating piece and outside fixed component. The inner positioning block can help the box cover to be installed and positioned at the correct position, and the box cover can be kept from moving after the box cover is installed. The external fixing component not only transfers the welding position of the box cover and the box body to the upper part of the box cover and the side part of the edge of the box body, avoids metal particles or welding fluxes generated in welding and cutting from entering the inside of the box body, but also can provide external support for the box body and the box cover, resists possible pressure in the installation and use processes, and avoids deformation of the transformer.
In addition, the box assembly and the transformer of the application are simple in structure and convenient to implement.
The above description is only for the preferred embodiment of the present invention and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. Tank assembly (2) for a transformer (1), characterized in that the tank assembly (2) comprises:
a case (12) having an opening (14);
a cover (22), the cover (22) closing the opening (14); and
a fixing member (24) that is an integral member having a first fixing portion (241) and a second fixing portion (242), the first fixing portion (241) being welded to an outer side surface of the case cover (22), the second fixing portion (242) being welded to an outer side surface of the case body (12).
2. Tank assembly (2) for a transformer (1) according to claim 1, characterized in that a rim (16) is provided around the opening (14) of the tank (12), the tank cover (22) covering the rim (16) to close the opening (14),
the outer side surface of the case lid (22) includes a case lid top surface (221) and a case lid peripheral surface (222), the outer side surface of the case body (12) includes a rim peripheral surface (161) and a rim bottom surface (162),
the first fixing portion (241) of the fixing member (24) is welded to a lid top surface (221) and/or a lid circumferential surface (222) of the lid (22), and the second fixing portion (242) of the fixing member (24) is welded to the rim circumferential surface (161) and/or the rim bottom surface (162) of the case (12).
3. Tank assembly (2) for a transformer (1) according to claim 2, characterised in that the periphery of the tank lid (22) extends radially at least partially overlapping the rim (16) of the tank body (12).
4. Tank assembly (2) for a transformer (1) according to claim 2, characterized in that said rim (16) of said tank (12) extends radially beyond the periphery of said tank lid (22).
5. Tank assembly (2) for a transformer (1) according to claim 2, characterized in that said fixing member (24) is L-shaped, the horizontal part of the L-shaped fixing member (24) being said first fixing portion (241), being fixed to the tank cover top surface (221) of the tank cover (22), the vertical part of the fixing member (24) being said second fixing portion (242), being fixed to the rim peripheral surface (161) of the tank (12).
6. Tank assembly (2) for a transformer (1) according to claim 1, characterized in that the tank assembly (2) further comprises a positioning block (26), the positioning block (26) being provided on a lower surface of the tank lid (22), the positioning block (26) cooperating with an inner wall of the tank body (12) when the tank lid (22) closes the opening (14), thereby positioning the tank lid (22) relative to the tank body (12).
7. Tank assembly (2) for a transformer (1) according to claim 6, characterized in that the tank assembly (2) comprises a plurality of said fixing members (24) and a plurality of said positioning blocks (26).
8. Tank assembly (2) for a transformer (1) according to claim 7, characterized in that the tank assembly (2) is entirely cylindrical, a plurality of fixing members (24) and a plurality of positioning blocks (26) being circumferentially arranged.
9. Tank assembly (2) for a transformer (1) according to claim 7, characterized in that said tank assembly (2) is overall rectangular parallelepiped-shaped, comprising four sides, each provided with at least two said fixing members (24) and at least two said positioning blocks (26).
10. A transformer (1), characterized in that it comprises:
tank assembly (2) for a transformer (1) according to any of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221972561.4U CN217719225U (en) | 2022-07-28 | 2022-07-28 | Tank assembly for a transformer and transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221972561.4U CN217719225U (en) | 2022-07-28 | 2022-07-28 | Tank assembly for a transformer and transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217719225U true CN217719225U (en) | 2022-11-01 |
Family
ID=83781468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221972561.4U Active CN217719225U (en) | 2022-07-28 | 2022-07-28 | Tank assembly for a transformer and transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217719225U (en) |
-
2022
- 2022-07-28 CN CN202221972561.4U patent/CN217719225U/en active Active
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
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| CP01 | Change in the name or title of a patent holder |
Address after: No.10, Weihua West Road, Shizhong District, Jinan City, Shandong Province, 250022 Patentee after: Jinan Siemens Energy Transformer Co.,Ltd. Address before: No.10, Weihua West Road, Shizhong District, Jinan City, Shandong Province, 250022 Patentee before: SIEMENS TRANSFORMER (JINAN) CO.,LTD. |