CN217847657U

CN217847657U - Transformer

Info

Publication number: CN217847657U
Application number: CN202222224574.XU
Authority: CN
Inventors: 唐大忠; 屠佳云; 胡周南; 汪列挺; 俞盈银; 杨林军; 俞伟锋; 陈龙
Original assignee: Ningbo Rendong Electric Co ltd
Current assignee: Zhejiang Henglang Electrical Co ltd
Priority date: 2022-08-23
Filing date: 2022-08-23
Publication date: 2022-11-18
Anticipated expiration: 2032-08-23

Abstract

The utility model relates to a transformer belongs to electrical equipment's technical field, its include the box, set up in a plurality of windings of box inside are provided with the insulation board between two adjacent windings, be provided with on the insulation board be used for with the packing backing plate of the outside looks butt of winding. This application has the difficult effect of scattering of winding that makes insulating tape and iron core outside.

Description

Transformer

Technical Field

The application relates to the technical field of electrical equipment, in particular to a transformer.

Background

At present, a transformer is an electrical device which performs voltage boosting or voltage reducing operation by using an electromagnetic mutual inductance effect, and the transformer mainly comprises a transformer body, transformer oil, an oil tank and a cooling device. The body is a main body part of the transformer, the body mainly comprises an iron core, a winding lead wire and the like, the winding is a circuit part of the transformer, and an insulated flat wire or an enameled wire is usually wound on the circumferential outer side of the iron core.

In the related art, the winding and the core are usually placed inside the case, and in order to enable the winding to be wound on the core better, an insulating tape is usually fixedly wound on the outside of the winding, so that the wire wound on the outside of the winding is not easily scattered.

In view of the above-mentioned related art, the inventor believes that in the above-mentioned technical solution, since the internal space of the box is fixed, the insulating tape outside the winding cannot be adhered to the inner wall of the box, so that the insulating tape is easily loosened, and further, the wires outside the core are easily loosened.

SUMMERY OF THE UTILITY MODEL

In order to make the difficult scatter of wire in insulating tape and the iron core outside, this application provides a transformer.

The application provides a transformer adopts following technical scheme:

the transformer comprises a box body and a plurality of windings arranged in the box body, wherein an insulating plate is arranged between every two adjacent windings, and a filling base plate used for being abutted to the outer sides of the windings is arranged on the insulating plate.

Through adopting above-mentioned technical scheme, fill the backing plate through setting up, when certain clearance appears between insulation board and the winding, fill the clearance between backing plate compensation winding and the insulation board to make and fill the insulating tape that the backing plate can compress tightly the winding outside better, the insulating tape in the winding outside is difficult for scattering, and then makes the winding be difficult for scattering, even the wire in the iron core outside is difficult for scattering, makes the winding more stable.

Optionally, the box body comprises an upper clamping piece, a lower clamping piece and two side plates, wherein a plurality of fixing screws are arranged on the side plates, and the fixing screws are in threaded connection with the upper clamping piece and/or the lower clamping piece.

Through adopting above-mentioned technical scheme, through set screw, realize that the curb plate is connected with dismantling of last folder, lower folder, when installing the transformer, can install the winding inside the box earlier, the insulating tape in the rethread curb plate compresses tightly the winding outside to make the insulating tape in the winding outside be difficult for scattering.

Optionally, a side backing plate for abutting against the outer side wall of the winding is arranged on the side plate.

Through adopting above-mentioned technical scheme, through setting up the side backing plate, further compensate the winding that is close to the curb plate and the clearance between the curb plate to compress tightly the insulating tape in the winding outside better, protect the winding simultaneously, reduce the extrusion wearing and tearing to the winding.

Optionally, a first tie bolt is arranged between the upper clamp piece and the lower clamp piece, and the upper clamp piece is used for pressing the winding on the lower clamp piece.

Through adopting above-mentioned technical scheme, through setting up first split bolt, realize going up the adjustable of interval between folder and the lower folder to make and go up folder and lower folder and can press from both sides tight winding.

Optionally, an upper padding plate is arranged at the bottom of the upper clamping piece, a lower padding plate is arranged at the top of the lower clamping piece, the bottom of the upper padding plate is abutted to the top of the winding, and the top of the lower padding plate is abutted to the bottom of the winding.

Through adopting above-mentioned technical scheme, through setting up upper padding plate and lower bolster, reduce the extrusion wearing and tearing to upper padding plate and lower bolster to the winding.

Optionally, an upper fixing plate is arranged at the bottom of the upper clamp, an upper limiting groove is formed in the upper fixing plate, and the top of the insulating plate is embedded into the upper limiting groove; the top of the lower clamping piece is provided with a lower fixing plate, and the lower fixing plate is provided with a lower limiting groove for embedding the bottom of the insulating plate.

Through adopting above-mentioned technical scheme, set up spacing groove on through last fixed plate, set up spacing groove down on the lower plate, fix a position the insulation board, make the position of insulation board in the box more fixed.

Optionally, a second split bolt is arranged between the upper clamping piece and the lower clamping piece, and the second split bolt sequentially penetrates through the upper clamping piece, the upper fixing plate, the lower fixing plate and the lower clamping piece from top to bottom.

Through adopting above-mentioned technical scheme, realize fixing a position upper fixed plate and bottom plate through setting up the second counter-pull bolt.

Optionally, a through hole is formed in the filling backing plate, a tightening wire is arranged on the filling backing plate, and the tightening wire penetrates through the through hole and is wound on the second split bolt.

Through adopting above-mentioned technical scheme, wear to locate the through-hole and twine at the screw rod part of second counter stay bolt through hooping the silk, fix a position the packing backing plate to the position that makes the packing backing plate in the box is more stable.

Optionally, the upper clamping piece comprises a first ejector rod and a second ejector rod, and a top split bolt is arranged between the first ejector rod and the second ejector rod.

Through adopting above-mentioned technical scheme, through set up the top between first ejector pin and second ejector pin and to the stay bolt, realize going up the adjustable of folder width to the folder can be fixed to the winding of equidimension not in messenger.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the gap between the insulating plate and the insulating tape of the winding is compensated by arranging the filling base plate, so that the insulating tape and the wires in the winding are not easy to scatter;

2. the side plate is detachably connected to the upper clamping piece and the lower clamping piece through the fixing screws, so that the side plate can better abut against the winding;

3. through setting up the side backing plate, when filling the compensation to the clearance between winding and the curb plate, make the curb plate be difficult for crushing the winding.

Drawings

Fig. 1 is a schematic diagram of an overall structure of a transformer according to an embodiment of the present application.

Fig. 2 is a schematic overall structure diagram of a transformer body according to an embodiment of the present application.

Fig. 3 is an exploded view of the side plate and the upper and lower clips according to the embodiment of the present application.

Fig. 4 is an exploded view of a winding according to an embodiment of the present application.

Fig. 5 is an exploded schematic view of a transformer body according to an embodiment of the present application.

Fig. 6 is an enlarged view of a portion a in fig. 5.

Description of reference numerals: 1. a box body; 2. a winding; 21. a drum; 22. an upper cover ring; 23. winding the column; 24. a lower cover ring; 25. a magnetic via; 26. an insulating tape; 3. an upper clamp; 31. a first ejector rod; 32. a second ejector rod; 33. a first connection block; 34. a second connecting block; 35. a top split bolt; 36. a base plate is arranged; 37. an upper fixing plate; 4. a lower clamp; 41. a first bottom bar; 42. a second bottom bar; 43. a third connecting block; 44. a fourth connecting block; 45. a lower base plate; 46. a lower fixing plate; 461. a lower limiting groove; 47. a bottom split bolt; 5. a side plate; 51. a set screw; 52. a side bolster plate; 6. a first split bolt; 7. an insulating plate; 71. filling a base plate; 711. perforating holes; 72. tightening the wire; 8. and a second pair of tie bolts.

Detailed Description

The present application is described in further detail below with reference to figures 1-6.

The embodiment of the application discloses a transformer.

Referring to fig. 1 and 2, the transformer includes a box 1 and a plurality of windings 2 arranged inside the box 1, the box 1 includes an upper clamp 3, a lower clamp 4 and two side plates 5, and the upper clamp 3 and the lower clamp 4 are both in a plate shape. The upper clamping piece 3, the lower clamping piece 4 and the two side plates 5 enclose a mounting cavity for placing the winding 2. In this embodiment, three windings 2 are provided, and the three windings 2 are arranged in a row at intervals.

Referring to fig. 2, the upper clamp 3 includes a first lift bar 31 and a second lift bar 32, and the first lift bar 31 and the second lift bar 32 are spaced apart from each other. A first connecting block 33 is fixedly welded on one side of the first top rod 31 close to the second top rod 32, and a second connecting block 34 is fixedly welded on one side of the second top rod 32 close to the first top rod 31. A top split bolt 35 is arranged between the first top rod 31 and the top rod, and a screw part of the top split bolt 35 sequentially penetrates through the first top rod 31, the first connecting block 33, the second connecting block 34 and the second top rod 32. The adjustment of the spacing distance between the first jack 31 and the second jack 32 is achieved by providing a top cross bolt 35. Wherein, first connecting block 33 and second connecting block 34 all are provided with two, first connecting block 33 and second connecting block 34 one-to-one, and two first connecting blocks 33 are located the both ends of first ejector pin 31 respectively, and two second connecting blocks 34 are located the both ends of second ejector pin 32 respectively.

Referring to fig. 2 and 3, the lower clamping piece 4 has the same structure as the upper clamping piece 3, the lower clamping piece 4 includes a first bottom rod 41 and a second bottom rod 42, a third connecting block 43 is welded and fixed on the first bottom rod 41, a fourth connecting block 44 is welded and fixed on the second bottom rod 42, a bottom counter-pull bolt 47 is arranged on the lower clamping piece 4, and the bottom counter-pull bolt 47 sequentially penetrates through the first bottom rod 41, the third connecting block 43, the fourth connecting block 44 and the second bottom rod 42.

Referring to fig. 2 and 3, the side plates 5 are provided with fixing screws 51, in this embodiment, the number of the fixing screws 51 on each side plate 5 is preferably four, the four fixing screws 51 are respectively in threaded connection with the first connecting block 33, the second connecting block 34, the third connecting block 43 and the fourth connecting block 44, and the fixing screws 51 are used to detachably connect the side plates 5 with the upper clamping piece 3 and the lower clamping piece 4.

Referring to fig. 2, a first pair of draw bolts 6 is disposed between the upper clamping piece 3 and the lower clamping piece 4, in this embodiment, four first pair of draw bolts 6 are disposed, four first pair of draw bolts 6 are respectively located at four corners of the upper clamping piece 3, two first pair of draw bolts 6 penetrate through the first top rod 31 and the first bottom rod 41, and the other two first pair of draw bolts 6 penetrate through the second top rod 32 and the second bottom rod 42. The distance between the upper clamping piece 3 and the lower clamping piece 4 can be adjusted by arranging the first split bolt 6, so that the upper clamping piece 3 is pressed on the winding 2.

Referring to fig. 1 and 2, the upper clip member 3 is provided at the bottom thereof with an upper pad 36, and the lower clip member 4 is provided at the top thereof with a lower pad 45 corresponding to the upper pad 36. In this embodiment, two upper backing plates 36 and two lower backing plates 45 are provided, the two upper backing plates 36 are respectively abutted against the tops of the windings 2 located on both sides, and the two lower backing plates 45 are respectively abutted against the bottoms of the windings 2 located on both sides. In this embodiment, the upper pad 36 and the lower pad 45 are made of a material capable of generating a certain deformation, such as wood, plastic material or rubber, so as to reduce the extrusion wear of the upper clamping member 3 and the lower clamping member 4 on the winding 2 during the process.

Referring to fig. 4, the winding 2 includes a drum 21 and a wire (not shown), the drum 21 includes an upper cover ring 22, a lower cover ring 24, and a winding post 23, the winding post 23 is located between the upper cover ring 22 and the lower cover ring 24 and integrally connected with the upper cover ring 22 and the lower cover ring 24, and the wire is wound on the winding post 23. The upper cover ring 22 abuts the upper backing plate 36, and the lower cover ring 24 abuts the lower backing plate 45.

Referring to fig. 4, the winding post 23, the upper cover ring 22 and the lower cover ring 24 are collectively provided with a flux hole 25 through which the iron core passes, and a worker can increase the magnetic flux of the winding 2 by placing the iron core in the flux hole 25.

Referring to fig. 4, in order to make the wire on the winding post 23 less likely to be unraveled, an insulating tape 26 is wound around the outside of the winding 2, and the insulating tape 26 is wound around the outside of the wire so as to wrap the wire on the winding post 23. In which the insulating tape 26 has a certain viscosity so that the insulating tape 26 positioned at the outermost layer can be adhered to the insulating tape 26 positioned at the next outermost layer after the insulating tape 26 is repeatedly wound in multiple layers, thereby making the insulating tape 26 less likely to be scattered.

Referring to fig. 1 and 5, an insulating plate 7 is disposed between two adjacent windings 2, and a filling pad 71 is disposed between the windings 2 and the insulating plate 7 to compensate for a gap between the insulating tape 26 and the insulating plate 7, and the filling pad 71 is pressed against the insulating tape 26, so that the insulating tape 26 is not easily scattered. The insulating tape 26 can be pressed tightly by changing the thickness of the filling pad 71, or the gap between the insulating plate 7 and the insulating tape 26 can be compensated better by increasing the number of the filling pads 71.

Referring to fig. 3, a side pad 52 is further disposed between the side plate 5 and the insulating tape 26, and the side plate 5 is used to press the side pad 52 against the insulating tape 26, thereby further making the insulating tape 26 less prone to unraveling. In this embodiment, the material of the side pad 52 is preferably epoxy resin.

Referring to fig. 2 and 6, the bottom of the upper clip 3 is provided with an upper fixing plate 37 abutting against the top of the winding 2, and the top of the lower clip 4 is provided with a lower fixing plate 46 abutting against the bottom of the winding 2. The upper fixing plate 37 has an upper limiting groove (not shown) at the bottom for the top sidewall of the insulating plate 7 to be inserted into, and the lower fixing plate 46 has a lower limiting groove 461 for the bottom sidewall of the insulating plate 7 to be inserted into.

Referring to fig. 1 and 2, in the present embodiment, the lower fixing plates 46 correspond to the upper fixing plates 37 one to one, two upper fixing plates 37 and two lower fixing plates 46 are provided, the bottom of each upper fixing plate 37 abuts against the tops of two adjacent windings 2, and the top of each lower fixing plate 46 abuts against the bottoms of two adjacent windings 2.

Referring to fig. 2, a second pair of tie bolts 8 is disposed between the upper clamping piece 3 and the lower clamping piece 4, in this embodiment, four second pair of tie bolts 8 are disposed, the first push rod 31 corresponds to two second pair of tie bolts 8, and the second push rod 32 corresponds to the other two second pair of tie bolts 8. The second counter bolts 8 corresponding to the first top rod 31 penetrate through the first top rod 31, the upper fixing plate 37, the lower fixing plate 46 and the first bottom rod 41 from top to bottom in sequence; similarly, the second tie bolt 8 corresponding to the second top rod 32 is sequentially inserted through the second top rod 32, the upper fixing plate 37, the lower fixing plate 46 and the second bottom rod 42. The first push rod 31 and the second push rod 32 are fixed by the second tie bolt 8, and the upper fixing plate 37 and the lower fixing plate 46 are positioned.

Referring to fig. 6, a through hole 711 is formed in the packing plate 71, a tightening wire 72 is disposed on the packing plate 71, and the tightening wire 72 is inserted into the through hole 711 and wound around the second pair of tie bolts 8, thereby fixing the position of the packing plate 71. The tightening wire 72 can be a steel wire or a rope, and the tightening wire 72 performs limit fixing on the filling mat 71 by twisting.

The implementation principle of the transformer in the embodiment of the application is as follows: the gap between the insulating plate 7 and the insulating tape 26 outside the winding 2 is compensated by providing the filler pad 71, so that the insulating tape 26 and the wire wrapped by the insulating tape 26 are less likely to scatter. The side pads 52 are provided to compress the insulating tape 26, making the tape 26 less likely to unravel. Through set up first split bolt 6 between upper clamp piece 3 and lower clamp piece 4, realize that the interval is adjustable between upper clamp piece 3 and the lower clamp piece 4 to make upper clamp piece 3 and lower clamp piece 4 can press from both sides tight winding 2 better.

The above are preferred embodiments of the present application, and the scope of protection of the present application is not limited thereto, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A transformer, characterized by: the winding box comprises a box body (1) and a plurality of windings (2) arranged in the box body (1), wherein an insulating plate (7) is arranged between every two adjacent windings (2), and a filling base plate (71) which is used for being abutted to the outer sides of the windings (2) is arranged on the insulating plate (7).

2. A transformer according to claim 1, characterised in that: the box body (1) comprises an upper clamping piece (3), a lower clamping piece (4) and two side plates (5), wherein a plurality of fixing screws (51) are arranged on the side plates (5), and the fixing screws (51) are in threaded connection with the upper clamping piece (3) and/or the lower clamping piece (4).

3. A transformer according to claim 2, characterised in that: and the side plate (5) is provided with a side backing plate (52) which is used for being abutted against the outer side wall of the winding (2).

4. A transformer according to claim 2, characterised in that: a first split bolt (6) is arranged between the upper clamping piece (3) and the lower clamping piece (4), and the upper clamping piece (3) is used for pressing the winding (2) on the lower clamping piece (4).

5. A transformer according to claim 4, characterised in that: the bottom of the upper clamping piece (3) is provided with an upper padding plate (36), the top of the lower clamping piece (4) is provided with a lower padding plate (45), the bottom of the upper padding plate (36) is abutted to the top of the winding (2), and the top of the lower padding plate (45) is abutted to the bottom of the winding (2).

6. A transformer according to claim 4, characterised in that: an upper fixing plate (37) is arranged at the bottom of the upper clamping piece (3), an upper limiting groove is formed in the upper fixing plate (37), and the top of the insulating plate (7) is embedded into the upper limiting groove; the top of the lower clamping piece (4) is provided with a lower fixing plate (46), and the lower fixing plate (46) is provided with a lower limiting groove (461) for embedding the bottom of the insulating plate (7).

7. A transformer according to claim 6, characterised in that: a second split bolt (8) is arranged between the upper clamping piece (3) and the lower clamping piece (4), and the second split bolt (8) sequentially penetrates through the upper clamping piece (3), the upper fixing plate (37), the lower fixing plate (46) and the lower clamping piece (4) from top to bottom.

8. A transformer according to claim 7, characterised in that: the packing plate (71) is provided with a through hole (711), the packing plate (71) is provided with a tightening wire (72), and the tightening wire (72) penetrates through the through hole (711) and is wound on the second split bolt (8).

9. A transformer according to claim 2, characterised in that: the upper clamping piece (3) comprises a first ejector rod (31) and a second ejector rod (32), and a top split bolt (35) is arranged between the first ejector rod (31) and the second ejector rod (32).