CN213691641U - Novel oil-immersed transformer - Google Patents
Novel oil-immersed transformer Download PDFInfo
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- CN213691641U CN213691641U CN202022779249.0U CN202022779249U CN213691641U CN 213691641 U CN213691641 U CN 213691641U CN 202022779249 U CN202022779249 U CN 202022779249U CN 213691641 U CN213691641 U CN 213691641U
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Abstract
The utility model relates to the technical field of transformers, in particular to a novel oil-immersed transformer, which comprises a transformer shell and a transformer body arranged in the transformer shell, wherein the transformer body comprises an iron core, an upper clamping piece, a lower clamping piece, a pulling plate, a low-voltage coil and a high-voltage coil, an insulating plate is arranged outside the high-voltage coil, the insulating plate is of an annular structure, a plurality of grooves are arranged on the inner wall of the insulating plate, which is in contact with the high-voltage coil, in an annular array at equal intervals, bulges are formed between the adjacent grooves, the cross sections of the bulges are of arc-shaped structures, and the end parts of the bulges are in; and a lifting ring is arranged at the top of the transformer shell. The utility model is convenient for hoisting the transformer and carrying the transformer; it is possible to minimize the transmission of the vibration of the insulating oil to the transformer case, thereby reducing the vibration and noise of the transformer.
Description
Technical Field
The utility model relates to a transformer technical field especially relates to a novel oil-immersed transformer.
Background
The transformer is widely used in local illumination, high-rise buildings, airports, wharf CNC mechanical equipment and other places, and the novel oil-immersed transformer is simply a transformer with an iron core and a winding which are not immersed in insulating oil. Because many types of transformers have larger volume and larger mass, the transformers are very inconvenient to carry, a crane and the like are needed, and the lifting hook is required to have a better acting point; the transformer is often required to be fixedly arranged in the transformer box so as to ensure the safe use of the transformer and prolong the service life of the transformer; however, during installation, installation and fixation are troublesome, and the difficulty of installation is increased due to the fact that the heights of different transformers are different; when current flows through the coil, vibration is generated due to electromagnetic force, and the vibration transmitted to the insulating oil by the coil is continuously and directly transmitted to the transformer shell, so that vibration and noise are generated in the shell.
Based on the above consideration, the utility model designs a novel oil-immersed transformer.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provide a novel oil-immersed transformer which is convenient for hoisting and carrying the transformer; the transmission of vibration of the insulating oil to the transformer case can be minimized, thereby reducing vibration and noise of the transformer; and the transformer is convenient to install in the transformer shell.
In order to realize the utility model discloses a purpose, the utility model discloses a technical scheme do:
the utility model discloses a novel oil-immersed transformer, which comprises a transformer shell and a transformer body arranged in the transformer shell, wherein the transformer body comprises an iron core, an upper clamping piece, a lower clamping piece, a pulling plate, a low-voltage coil and a high-voltage coil, the two upper clamping pieces are clamped at the front side and the rear side of an upper iron yoke of the iron core, and the two upper clamping pieces are fixedly connected through bolts; the two lower clamping pieces are clamped on the front side and the rear side of a lower iron yoke of the iron core and fixedly connected through bolts, the low-voltage coil and the high-voltage wire are sleeved outside the iron core, an insulating plate is arranged outside the high-voltage coil and is of an annular structure, a plurality of grooves are formed in the inner wall, in contact with the high-voltage coil, of the insulating plate in an annular array at equal intervals, bulges are formed between every two adjacent grooves, the cross sections of the bulges are of circular arc structures, and the end parts of the bulges are in contact with the high-voltage coil;
the transformer comprises a transformer body, and is characterized in that a lifting ring is arranged at the top of the transformer shell, the lifting ring comprises a fixed block, a U-shaped connecting ring, a limiting ring and a fixing bolt, the fixed block is of a cylindrical structure, the bottom of the fixed block is fixed at the top of the transformer body, a cylindrical connecting block coaxial with the fixed block is arranged at the top of the fixed block, a sleeve coaxial with the connecting block is arranged at the top of the connecting block, and an internal thread matched with an external thread on the outer wall of the fixing bolt is arranged on; the U-shaped connecting ring is of an inverted U-shaped structure, and two ends of the U-shaped connecting ring are connected with limiting rods towards the inner side; the inner diameter of the limiting ring is equal to the outer diameter of the sleeve, and the bottom of the limiting ring is provided with a clamping groove matched with the limiting rod in shape.
A plurality of second grooves are formed in the outer wall of the insulating plate in an annular array at equal intervals, a second protrusion is formed between every two adjacent second grooves, and the cross section of each second protrusion is of an arc-shaped structure.
A gasket is placed at the top of the limiting ring, the inner diameter of the gasket is equal to the outer diameter of the fixing bolt, and the outer diameter of the gasket is larger than that of the sleeve.
The end part of the limiting rod is provided with a cylindrical limiting block coaxial with the limiting rod, and the outer diameter of the limiting block is larger than that of the limiting rod; the bottom of the limiting ring and the top of the connecting block are provided with grooves for inserting the top and the bottom of the limiting block.
A fixing plate is fixed at the top of the upper clamping piece, the fixing plate is of an inverted concave structure, and two sides of the top of the fixing plate are fixedly connected with the inner wall of the transformer shell through an L-shaped connecting plate; the connecting plate is formed by connecting a longitudinal plate and a transverse plate, a through hole for a second fixing bolt to pass through is formed in the side wall of the longitudinal plate, and the second fixing bolt passes through the through hole and then is fixedly connected with the inner wall of the transformer shell; the surface of the transverse plate is provided with a first mounting hole for a bolt to pass through, and the fixing plate is provided with a second mounting hole matched with the first mounting hole.
The end part of the transverse plate is provided with a bending part integrally formed with the transverse plate, the bending part is approximately in an L-shaped structure, the top end of the bending part is connected with the end part of the transverse plate to approximately form a Z-shaped structure, and the fixing plate is provided with a square hole for inserting the bending part.
A clamping and connecting plate is arranged between the bent part and the first mounting hole, one end of the clamping and connecting plate is connected with the lower surface of the transverse plate, and the other end of the clamping and connecting plate is downwards inclined towards the end part of the transverse plate; the fixing plate is provided with a clamping hole for inserting the clamping plate.
The width of the square hole is the same as that of the bending part; the width of the clamping hole is the same as that of the clamping plate.
The through hole on the longitudinal plate is of a long-strip square structure, and the width of the through hole is equal to the outer diameter of the screw of the second fixing bolt.
The beneficial effects of the utility model reside in that:
1. the utility model is convenient for hoisting the transformer and carrying the transformer; the transmission of vibration of the insulating oil to the transformer case can be minimized, thereby reducing vibration and noise of the transformer; and the transformer is convenient to install in the transformer shell.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a schematic view of the installation of the present invention;
FIG. 3 is a cross-sectional view of the middle insulating plate and the high voltage coil of the present invention;
fig. 4 is a schematic structural view of the hanging ring of the present invention;
fig. 5 is a cross-sectional view of the hanging ring of the present invention;
fig. 6 is an exploded view of the middle hanging ring of the present invention
Fig. 7 is a schematic structural view of the fixing plate and the connecting plate of the present invention;
FIG. 8 is a cross-sectional view of a portion of the structure of FIG. 7;
fig. 9 is a schematic structural diagram of the middle connection plate of the present invention.
Detailed Description
The invention will be further described with reference to the following figures and examples:
see fig. 1-9.
The utility model discloses a novel oil-immersed transformer, which comprises a transformer shell 1 and a transformer body 2 arranged in the transformer shell 1, wherein the transformer body 2 comprises an iron core, an upper clamping piece 3, a lower clamping piece 4, a pulling plate 5, a low-voltage coil and a high-voltage coil 6, the two upper clamping pieces 3 are clamped at the front side and the rear side of an upper iron yoke of the iron core, and the two upper clamping pieces 3 are fixedly connected through bolts; the two lower clamping pieces 4 are clamped at the front side and the rear side of a lower iron yoke of an iron core, the two lower clamping pieces 4 are fixedly connected through bolts, the low-voltage coil and the high-voltage coil 6 are sleeved outside the iron core, an insulating plate 7 is arranged outside the high-voltage coil 6, the insulating plate 7 is of an annular structure, a plurality of grooves 71 are formed in the inner wall, in contact with the high-voltage coil 6, of the insulating plate 7 in an annular array at equal intervals, bulges 72 are formed between every two adjacent grooves 71, the cross sections of the bulges 72 are of circular arc structures, and the end parts of the bulges are in contact with; by the end of the protrusion 72 having the circular arc shape contacting the high voltage coil 6, the contact area of the high voltage coil 6 with the insulating plate 7 is minimized, so that the transmission of vibration to the transformer case through the insulating oil is minimized.
The top of the transformer shell 1 is provided with a lifting ring 8, the lifting ring 8 comprises a fixed block 81, a U-shaped connecting ring 82, a limiting ring 83 and a fixing bolt 84, the fixed block 81 is of a cylindrical structure, the bottom of the fixed block 81 is fixed to the top of the transformer body 2, the top of the fixed block 81 is provided with a cylindrical connecting block 85 which is coaxial with the fixed block, the top of the connecting block 85 is provided with a sleeve 86 which is coaxial with the connecting block, and the inner wall of the sleeve 86 is provided with an internal thread matched with the external thread on the outer wall of the fixing bolt 84; the U-shaped connecting ring 82 is of an inverted U-shaped structure, and two ends of the U-shaped connecting ring are connected with limiting rods 87 towards the inner side; the inner diameter of the limiting ring 83 is equal to the outer diameter of the sleeve 86, a clamping groove 88 matched with the limiting rod 87 in shape is formed in the bottom of the limiting ring 83, during installation, the fixing block 81 is firstly welded or fixed to the top of the transformer through a bolt, then the U-shaped connecting ring 82 is placed on the connecting block 85, the limiting ring 83 is sleeved outside the sleeve 86, the clamping groove 88 in the bottom of the limiting ring is clamped with the limiting rod 87 at the end of the U-shaped connecting ring 82, finally the gasket 89 is placed above the limiting ring 83, the fixing bolt 84 is in threaded connection with the sleeve 86, installation and disassembly are very convenient, the lifting ring 8 can facilitate lifting of the transformer, and the transformer can be conveniently carried.
The outer wall of the insulating plate 7 is provided with a plurality of second grooves 73 in an annular array at equal intervals, a second protrusion 74 is formed between the adjacent second grooves 73, the cross section of the second protrusion 74 is in a circular arc structure, and the second protrusion 74 and the second groove 73 are alternately arranged on the outer wall of the insulating plate 7, so that the vibration transmitted to the insulating oil through the surfaces of the second protrusion 74 and the second groove 73 destructively interferes with each other, the transmission of the vibration transmitted to the transformer housing by the insulating oil is minimized, and the vibration and the noise of the transformer are reduced.
A gasket 89 is placed at the top of the limiting ring 83, the inner diameter of the gasket 89 is equal to the outer diameter of the fixing bolt 84, the outer diameter of the gasket 89 is larger than the outer diameter of the sleeve 86, and the fixing bolt 84 can ensure that the limiting ring 83 is kept in clamping connection with the U-shaped connecting ring 82 in the hoisting process through the gasket 89.
The end part of the limiting rod 87 is provided with a cylindrical limiting block 90 which is coaxial with the limiting rod 87, and the outer diameter of the limiting block 90 is larger than that of the limiting rod 87; the bottom of the limiting ring 83 and the top of the connecting block 85 are provided with grooves 91 for inserting the top and the bottom of the limiting block 90. Through stopper 90 and recess 91 matching block, further ensure that U-shaped go-between 82 can not break away from with spacing ring 83 at the hoist and mount in-process, ensure that the process of hoist and mount transformer goes on smoothly.
A fixing plate 10 is fixed at the top of the upper clamping piece 3, the fixing plate 10 is of an inverted 'concave' structure, and two sides of the top of the fixing plate 10 are fixedly connected with the inner wall of the transformer shell 1 through an 'L' -shaped connecting plate 11; the connecting plate 11 is formed by connecting a longitudinal plate 111 and a transverse plate 112, a through hole 13 for a second fixing bolt 12 to pass through is formed in the side wall of the longitudinal plate 111, and the second fixing bolt 12 is fixedly connected with the inner wall of the transformer shell 1 after passing through the through hole 13; a first mounting hole 14 for a bolt to pass through is formed in the surface of the transverse plate 112, a second mounting hole 15 matched with the first mounting hole 14 is formed in the fixing plate 10, and the transverse plate 112 is connected with the fixing plate 10 through the bolt passing through the first mounting hole and the second mounting hole and matching with a nut; the screw of the second fixing bolt 12 passes through the through hole 13 and then is in threaded connection with the threaded hole on the inner wall of the transformer housing 1 to complete the connection of the longitudinal plate 111 and the inner wall of the transformer housing 1, so that the installation and the fixation of the transformer are completed.
The tip of horizontal board 112 be equipped with one integrated into one piece fashioned portion 16 of bending, the portion 16 of bending roughly is "L" shape structure, its top with the end connection of horizontal board 112 roughly makes up into "Z" shape structure, be equipped with on the fixed plate 10 and be used for the portion 16 male quad slit 17 of bending can play the fixed effect of quick location after 16 of bending inserts quad slit 17 on the fixed plate 10, and after 16 of bending and quad slit 17's inner wall top was tight, first, the coincidence of second mounting hole axis just in time, the bolt of being convenient for passes behind first, the second mounting hole cooperation nut and links to each other horizontal board 112 with fixed plate 10.
A clamping plate 18 is arranged between the bent part 16 and the first mounting hole 14, one end of the clamping plate 18 is connected with the lower surface of the transverse plate 112, and the other end of the clamping plate is inclined downwards towards the end part; the fixing plate 10 is provided with a clamping hole 19 for inserting the clamping plate 18, so that the positioning and fixing effects are further realized.
The width of the square hole 17 is the same as that of the bending part 16; the width in joint hole 19 with joint plate 18 is the same, ensures that the portion of bending 16 inserts during quad slit 17, joint plate 18 insert joint hole 19, and the axis of first mounting hole 14 and second mounting hole 15 just in time coincides, and the bolt of being convenient for passes behind first, the second mounting hole cooperation nut and links to each other horizontal board 112 with fixed plate 10.
Through-hole 13 on the vertical board 111 is rectangular square structure, its width with the screw rod external diameter of second fixing bolt 12 equals, because be used for on the transformer housing 1 inner wall with second fixing bolt 12 threaded connection screw hole rigidity, consequently can adapt to the installation of the transformer of co-altitude not fixed through being rectangular square through-hole 13.
The above mentioned is only the embodiment of the present invention, not the limitation of the patent scope of the present invention, all the equivalent transformations made by the contents of the specification and the drawings or the direct or indirect application in the related technical field are included in the patent protection scope of the present invention.
Claims (9)
1. A novel oil-immersed transformer comprises a transformer shell (1) and a transformer body (2) arranged in the transformer shell (1), wherein the transformer body (2) comprises an iron core, an upper clamping piece (3), a lower clamping piece (4), a pulling plate (5), a low-voltage coil and a high-voltage coil (6), the two upper clamping pieces (3) are clamped on the front side and the rear side of an upper iron yoke of the iron core, and the two upper clamping pieces (3) are fixedly connected through bolts; two lower folder (4) press from both sides around the lower yoke of iron core, and two lower folder (4) pass through bolt fixed connection, low voltage coil and high-voltage coil (6) suit in the iron core is outside, its characterized in that: an insulating plate (7) is arranged outside the high-voltage coil (6), the insulating plate (7) is of an annular structure, a plurality of grooves (71) are formed in the inner wall, which is in contact with the high-voltage coil (6), of the insulating plate at equal intervals in an annular array, a bulge (72) is formed between every two adjacent grooves (71), the cross section of each bulge (72) is of an arc-shaped structure, and the end part of each bulge is in contact with the high-voltage coil (6);
the transformer comprises a transformer body (2) and is characterized in that a lifting ring (8) is arranged at the top of the transformer shell (1), the lifting ring (8) comprises a fixing block (81), a U-shaped connecting ring (82), a limiting ring (83) and a fixing bolt (84), the fixing block (81) is of a cylindrical structure, the bottom of the fixing block is fixed to the top of the transformer body (2), a cylindrical connecting block (85) coaxial with the fixing block is arranged at the top of the fixing block (81), a sleeve (86) coaxial with the connecting block is arranged at the top of the connecting block (85), and an internal thread matched with an external thread on the outer wall of the fixing bolt (84) is arranged on the inner; the U-shaped connecting ring (82) is of an inverted U-shaped structure, and two ends of the U-shaped connecting ring are connected with limiting rods (87) inwards; the inner diameter of the limiting ring (83) is equal to the outer diameter of the sleeve (86), and the bottom of the limiting ring is provided with a clamping groove (88) matched with the limiting rod (87) in shape.
2. The novel oil-filled transformer of claim 1, wherein: a plurality of second grooves (73) are arranged on the outer wall of the insulating plate (7) in an annular array at equal intervals, second protrusions (74) are formed between every two adjacent second grooves (73), and the cross section of each second protrusion (74) is of an arc-shaped structure.
3. The novel oil-filled transformer of claim 2, wherein: a gasket (89) is arranged at the top of the limiting ring (83), the inner diameter of the gasket (89) is equal to the outer diameter of the fixing bolt (84), and the outer diameter of the gasket is larger than that of the sleeve (86).
4. The novel oil-filled transformer of claim 3, wherein: the end part of the limiting rod (87) is provided with a cylindrical limiting block (90) which is coaxial with the limiting rod, and the outer diameter of the limiting block (90) is larger than that of the limiting rod (87); the bottom of the limiting ring (83) and the top of the connecting block (85) are provided with grooves (91) for inserting the top and the bottom of the limiting block (90).
5. The novel oil-filled transformer of claim 4, wherein: a fixing plate (10) is fixed at the top of the upper clamping piece (3), the fixing plate (10) is of an inverted concave structure, and two sides of the top of the fixing plate are fixedly connected with the inner wall of the transformer shell (1) through an L-shaped connecting plate (11); the connecting plate (11) is formed by connecting a longitudinal plate (111) and a transverse plate (112), a through hole (13) for a second fixing bolt (12) to pass through is formed in the side wall of the longitudinal plate (111), and the second fixing bolt (12) is fixedly connected with the inner wall of the transformer shell (1) after passing through the through hole (13); the surface of the transverse plate (112) is provided with a first mounting hole (14) for a bolt to pass through, and the fixing plate (10) is provided with a second mounting hole (15) matched with the first mounting hole (14).
6. The novel oil-filled transformer of claim 5, wherein: the end part of the transverse plate (112) is provided with a bending part (16) integrally formed with the transverse plate, the bending part (16) is approximately in an L-shaped structure, the top end of the bending part is connected with the end part of the transverse plate (112) to approximately form a Z-shaped structure, and the fixing plate (10) is provided with a square hole (17) for inserting the bending part (16).
7. The novel oil-filled transformer of claim 6, wherein: a clamping plate (18) is arranged between the bent part (16) and the first mounting hole (14), one end of the clamping plate (18) is connected with the lower surface of the transverse plate (112), and the other end of the clamping plate is inclined downwards towards the end part of the transverse plate; the fixing plate (10) is provided with a clamping hole (19) for inserting the clamping plate (18).
8. The novel oil-filled transformer of claim 7, wherein: the width of the square hole (17) is the same as that of the bending part (16); the width of the clamping hole (19) is the same as that of the clamping plate (18).
9. The novel oil-filled transformer of claim 8, wherein: through-hole (13) on vertical board (111) are rectangular square structure, its width with the screw rod external diameter of second fixing bolt (12) is equal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022779249.0U CN213691641U (en) | 2020-11-26 | 2020-11-26 | Novel oil-immersed transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022779249.0U CN213691641U (en) | 2020-11-26 | 2020-11-26 | Novel oil-immersed transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213691641U true CN213691641U (en) | 2021-07-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022779249.0U Active CN213691641U (en) | 2020-11-26 | 2020-11-26 | Novel oil-immersed transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213691641U (en) |
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2020
- 2020-11-26 CN CN202022779249.0U patent/CN213691641U/en active Active
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Denomination of utility model: A new type of oil immersed transformer Effective date of registration: 20221121 Granted publication date: 20210713 Pledgee: Bank of Communications Ltd. Jiangxi branch Pledgor: JIANGXI PEOPLE POWER TRANSMISSION AND TRANSFORMATION CO.,LTD. Registration number: Y2022990000823 |