CN210606931U - Amorphous alloy transformer and insulating cylinder thereof - Google Patents
Amorphous alloy transformer and insulating cylinder thereof Download PDFInfo
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- CN210606931U CN210606931U CN201921911963.1U CN201921911963U CN210606931U CN 210606931 U CN210606931 U CN 210606931U CN 201921911963 U CN201921911963 U CN 201921911963U CN 210606931 U CN210606931 U CN 210606931U
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- voltage coil
- cambered surface
- support plate
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- 229910000808 amorphous metal alloy Inorganic materials 0.000 title claims abstract description 18
- 230000007704 transition Effects 0.000 claims abstract description 37
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 10
- 229910052802 copper Inorganic materials 0.000 claims abstract description 10
- 239000010949 copper Substances 0.000 claims abstract description 10
- 238000009413 insulation Methods 0.000 claims description 17
- 238000005452 bending Methods 0.000 claims description 7
- 239000002023 wood Substances 0.000 claims description 7
- 230000006978 adaptation Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims 2
- 238000004804 winding Methods 0.000 abstract description 11
- 230000009471 action Effects 0.000 abstract description 4
- 238000006073 displacement reaction Methods 0.000 abstract description 4
- 239000005300 metallic glass Substances 0.000 abstract description 4
- 239000012212 insulator Substances 0.000 abstract 2
- 238000009434 installation Methods 0.000 abstract 1
- 230000009286 beneficial effect Effects 0.000 description 10
- 239000004593 Epoxy Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
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Abstract
The utility model relates to an metallic glass transformer and insulator thereof, this insulator includes: the cylinder is of a rectangular structure and comprises two long side walls and two short side walls; the insulating supporting plate is provided with two, sets firmly respectively on corresponding short lateral wall, and one side that each insulating supporting plate deviates from the barrel is the cambered surface, and the cambered surface extends along the crooked extension of circumference of barrel, and the both ends of cambered surface extend to corresponding long lateral wall or extend to corresponding long lateral wall, short lateral wall's transition fillet position department respectively, are equipped with the mounting groove on the cambered surface of one of them in two insulating supporting plates, and this mounting groove link up the extension along the axial of barrel to installation low voltage coil's the copper bar of being qualified for the next round of competitions. The tightness of winding of the coil can be improved, and after the coil is pressed, a gap formed between the low-voltage coil and the insulating cylinder is small; under the action of a short-circuit force, the inward shrinkage displacement of the low-voltage coil is small, the gap between the low-voltage coil and the high-voltage coil is not changed greatly, and the short-circuit resistance of the amorphous alloy transformer can be effectively improved.
Description
Technical Field
The utility model relates to an metallic glass transformer and insulating cylinder thereof.
Background
The application publication number of the Chinese invention patent application is CN106783086A, and discloses an amorphous transformer coil built-in epoxy cylinder, which comprises an epoxy cylinder body, a low-voltage coil layer and a high-voltage coil layer, wherein the low-voltage coil layer is wound on the epoxy cylinder body, the high-voltage coil layer is wound on the low-voltage coil layer, and a low-voltage outlet copper bar is arranged between the low-voltage coil layer and the epoxy cylinder body.
In the prior art, as shown in fig. 1, since the insulating cylinder 1 is a rectangular structure, the low-voltage coil 2 is wound on the insulating cylinder 1, the insulating layer 3 is wound on the low-voltage coil 2, and the high-voltage coil 4 is wound on the insulating layer 3, the tightness of the coil is poor, so that the long side of the coil needs to be pressed by a hydraulic device, so as to improve the tightness of the coil, and in the pressing process, the short side of the coil expands outwards, and a large gap 5 is formed between the short side wall of the insulating cylinder 1 and the long side wall of the coil.
When carrying out the short-circuit test, under the interact of the leakage magnetic field between short-circuit current and high, low-voltage coil 2 can receive inward short-circuit force, because there is great clearance 5 between low-voltage coil 2 and the short lateral wall of insulating cylinder 1, consequently low-voltage coil 2 can inwards shrink, causes the clearance change grow of insulating layer 3 department, makes the reactance change of transformer super poor, can't pass anti short-circuit test.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide an amorphous alloy transformer to solve the technical problems that the coil in the prior art is poor in tightness after being wound on an insulating cylinder and a larger gap is generated between the coil and the short side wall of the insulating cylinder in the press fitting process; an object of the utility model is to provide an insulating cylinder still to the coil winding that solves among the prior art is inseparable relatively poor on the insulating cylinder after, can produce the technical problem in great clearance between the short lateral wall of pressure equipment in-process coil and insulating cylinder.
In order to achieve the above object, the utility model discloses the technical scheme of insulating cylinder is:
the insulating cylinder includes: the cylinder is of a rectangular structure and comprises two long side walls and two short side walls; the insulating supporting plate is provided with two, correspond with the outer wall adaptation of two short lateral walls of barrel sets firmly on corresponding short lateral wall, and one side that each insulating supporting plate deviates from the barrel is the cambered surface, and the cambered surface extends along the circumference bending of barrel, and the both ends of cambered surface extend to corresponding long lateral wall respectively or extend to corresponding long lateral wall, short lateral wall's transition fillet position department, are equipped with the mounting groove on the cambered surface of one of them in two insulating supporting plates to be used for installing low voltage coil's the copper bar of being qualified for the next round of competitions.
The beneficial effects are that: the insulation support plates are fixedly arranged on the two short side walls of the cylinder body respectively, and the two ends of the cambered surfaces of the insulation support plates extend to the corresponding long side walls or transition round corners of the corresponding long side walls and the corresponding short side walls respectively, so that the cross section of the insulation cylinder is in an oblong shape, and the winding tightness of the low-voltage coil, the insulation layer and the high-voltage coil can be improved; after the low-voltage coil, the insulating layer and the high-voltage coil are completely wound, and the low-voltage coil is pressed, the deformation of the low-voltage coil is small, so that a gap formed between the low-voltage coil and the insulating cylinder is small. During a short-circuit test, because the gap between the low-voltage coil and the insulating cylinder is small, the inward shrinkage displacement of the low-voltage coil is small under the action of a short-circuit force, the gap between the low-voltage coil and the high-voltage coil is ensured to be not changed greatly, and the short-circuit resistance of the amorphous alloy transformer can be effectively improved.
Furthermore, the both ends of cambered surface extend to corresponding long sidewall, the transition fillet position department of short lateral wall respectively, and with the smooth transitional coupling of transition fillet.
The beneficial effects are that: the two ends of the cambered surface are in smooth transition connection with the transition fillets of the corresponding long side wall and the short side wall, so that the winding quality of the low-voltage coil can be guaranteed, and the low-voltage coil is prevented from generating creases.
Furthermore, each insulating support plate is bonded to the corresponding short sidewall to achieve fixation to the corresponding short sidewall.
The beneficial effects are that: by means of bonding, the insulating support plates are conveniently fixed on the corresponding short side walls.
Further, the mounting groove is located in the middle of the corresponding cambered surface.
The beneficial effects are that: the middle position of the insulating support plate is relatively thick, and the strength of the insulating support plate can still be ensured after the groove is formed in the middle position.
Further, the insulating support plate is made of laminated wood.
The beneficial effects are that: the laminated wood has good insulation performance, certain structural strength and relatively low cost.
In order to achieve the above object, the technical solution of the amorphous alloy transformer of the present invention is:
the amorphous alloy transformer includes: an insulating cylinder; the low-voltage coil is wound on the insulating cylinder; the insulating layer is wound on the low voltage coil; the high-voltage coil is wound on the insulating layer; the insulating cylinder comprises a cylinder body and an insulating support plate, wherein the cylinder body is of a rectangular structure and comprises two long side walls and two short side walls; the insulating support plate is provided with two, correspond with the outer wall adaptation of two short lateral walls of barrel sets firmly on corresponding short lateral wall, and one side that each insulating support plate deviates from the barrel is the cambered surface, and the cambered surface extends along the circumference bending of barrel, and the both ends of cambered surface extend respectively to corresponding long lateral wall or extend to corresponding long lateral wall, short lateral wall's transition fillet position department, are equipped with the mounting groove on the cambered surface of the insulating support plate that corresponds low-voltage coil and be qualified for the next round of competitions the copper bar in two insulating support plates.
The beneficial effects are that: the insulation support plates are fixedly arranged on the two short side walls of the cylinder body respectively, and the two ends of the cambered surfaces of the insulation support plates extend to the corresponding long side walls or transition round corners of the corresponding long side walls and the corresponding short side walls respectively, so that the cross section of the insulation cylinder is in an oblong shape, and the winding tightness of the low-voltage coil, the insulation layer and the high-voltage coil can be improved; after the low-voltage coil, the insulating layer and the high-voltage coil are completely wound, and the low-voltage coil is pressed, the deformation of the low-voltage coil is small, so that a gap formed between the low-voltage coil and the insulating cylinder is small. During a short-circuit test, because the gap between the low-voltage coil and the insulating cylinder is small, the inward shrinkage displacement of the low-voltage coil is small under the action of a short-circuit force, the gap between the low-voltage coil and the high-voltage coil is ensured to be not changed greatly, and the short-circuit resistance of the amorphous alloy transformer can be effectively improved.
Furthermore, the both ends of cambered surface extend to corresponding long sidewall, the transition fillet position department of short lateral wall respectively, and with the smooth transitional coupling of transition fillet.
The beneficial effects are that: the two ends of the cambered surface are in smooth transition connection with the transition fillets of the corresponding long side wall and the short side wall, so that the winding quality of the low-voltage coil can be guaranteed, and the low-voltage coil is prevented from generating creases.
Furthermore, each insulating support plate is bonded to the corresponding short sidewall to achieve fixation to the corresponding short sidewall.
The beneficial effects are that: by means of bonding, the insulating support plates are conveniently fixed on the corresponding short side walls.
Further, the mounting groove is located in the middle of the corresponding cambered surface.
The beneficial effects are that: the middle position of the insulating support plate is relatively thick, and the strength of the insulating support plate can still be ensured after the groove is formed in the middle position.
Further, the insulating support plate is made of laminated wood.
The beneficial effects are that: the laminated wood has good insulation performance, certain structural strength and relatively low cost.
Drawings
FIG. 1 is a schematic structural diagram of a prior art amorphous alloy transformer with a coil wound on an insulating cylinder;
fig. 2 is a schematic structural view of the amorphous alloy transformer according to the present invention, in which the coil is wound on the insulating cylinder;
FIG. 3 is a schematic structural view of the left insulating support plate in FIG. 2;
FIG. 4 is a top view of FIG. 3;
in fig. 1: 1-an insulating cylinder; 2-a low voltage coil; 3-an insulating layer; 4-a high voltage coil; 5-clearance;
in fig. 2 to 4: 11-a barrel body; 12-a low voltage coil; 13-an insulating layer; 14-a high voltage coil; 15-left insulating support plate; 16-right insulating support plate; 17-mounting grooves; 18-outlet copper bar.
Detailed Description
The following describes embodiments of the present invention with reference to the accompanying drawings.
The utility model discloses a concrete embodiment of metallic glass transformer:
as shown in fig. 2, the amorphous alloy transformer includes an insulating cylinder, a low voltage coil 12 wound on the insulating cylinder, an insulating layer 13 wound on the low voltage coil 12, and a high voltage coil 14 wound on the insulating layer 13. Wherein, the insulating layer is formed by winding insulating paper.
In this embodiment, the insulating cylinder includes for the barrel 11 that extends along the fore-and-aft direction, and the both ends of barrel 11 are open structure, and barrel 11 is the rectangle structure, including two long side walls and two short side walls. Two short side walls are defined and arranged along the left-right direction, a left insulating support plate 15 is fixedly arranged on the left short side wall, a right insulating support plate 16 is fixedly arranged on the right short side wall, the structures of the left insulating support plate 15 and the right insulating support plate 16 are substantially the same, and the difference is that a mounting groove 17 is formed in the left insulating support plate 15 and used for mounting an outlet copper bar 18 of the low-voltage coil 12. In other embodiments, the mounting groove may be provided on the right insulation support plate instead of the left insulation support plate according to the mounting position of the outlet copper bar of the low-voltage coil.
As shown in fig. 3 and 4, the left side of the left insulating support plate 15 is a left arc surface, the left arc surface extends along the circumferential direction of the barrel 11 in a bending manner, the upper end of the left arc surface extends to the transition fillet position of the upper long side wall and the left short side wall, and the lower end of the left arc surface extends to the transition fillet position of the lower long side wall and the left short side wall; the right side of right side insulation support plate 15 is the right cambered surface, and the crooked extension of circumference of barrel 11 is followed to the right cambered surface, and the upper end of right cambered surface extends to the transition fillet position department of last long sidewall and the short sidewall in the right side, and the lower extreme of right cambered surface extends to the transition fillet position department of long sidewall and the short sidewall in the right side down. The left insulating support plate 15, the right insulating support plate 16 and the two long side walls make the cross section of the insulating cylinder be an oblong structure, and then the low-voltage coil 12 can be tightly wound on the left insulating support plate 15, the right insulating support plate 16 and the two long side walls. In other embodiments, the left arc surface extends along the circumferential direction of the barrel in a bending way, the upper end of the left arc surface extends to the upper long side wall, and the lower end of the left arc surface extends to the lower long side wall; the right cambered surface extends along the circumferential bending of the barrel, the upper end of the right cambered surface extends to the upper long side wall, the lower end of the right cambered surface extends to the lower long side wall, the cross section of the insulating barrel is of an oblong structure due to the left insulating support plate, the right insulating support plate and the two long side walls, and then the low-voltage coil can be tightly wound on the left insulating support plate, the right insulating support plate and the two long side walls.
In the embodiment, the upper end of the left cambered surface is in smooth transition connection with the transition fillets of the upper long side wall and the left short side wall, and the lower end of the left cambered surface is in smooth transition connection with the transition fillets of the lower long side wall and the left short side wall; the upper end of the right arc surface is in smooth transition connection with the transition round angle of the upper long side wall and the right short side wall, the lower end of the right arc surface is in smooth transition connection with the transition round angle of the lower long side wall and the right short side wall, and therefore the lower end of the right arc surface can be completely attached to the transition connection position when the low-voltage coil is wound, and the winding quality of the low-voltage coil is guaranteed. In other embodiments, the upper end and the lower end of the arc surface can not be in smooth transition connection with the transition fillet, the low-voltage coil cannot be completely attached to the transition connection position during winding, and a large deformation amount can be generated at the position to influence the short-circuit resistance test.
The left insulating support plate 15 is provided with a mounting groove 17, and the mounting groove 17 runs through and extends along the axial direction of the barrel 11. As shown in fig. 3, the mounting groove 17 is located in the middle of the arc surface of the left insulating support plate 15, the middle of the left insulating support plate 15 is relatively thick, and after the mounting groove 17 is formed in the middle, the strength of the left insulating support plate 15 can still be ensured. In other embodiments, the mounting groove can be arranged on the upper portion or the lower portion of the left insulating support plate, and at the moment, the left insulating support plate needs to be designed to be thicker so as to meet the strength of the left insulating support plate and the mounting requirement of the outgoing line copper bar.
In this embodiment, the left insulating support plate 15 is bonded on the left short sidewall, and the right insulating support plate 16 is bonded on the right short sidewall, so as to realize that the two insulating support plates are fixedly arranged on the barrel 11. In other embodiments, taking the left insulating support plate as an example, a tapered through hole may be formed in the left insulating support plate, a blind hole may be formed in the left short sidewall, and the left insulating support plate may be fixed to the left short sidewall by interference fit with the blind hole through a non-metallic fastener inserted into the tapered through hole.
In this embodiment, the right side surface of the left insulating support plate 15 is a right straight surface, the right straight surface and the left arc surface of the left insulating support plate 15 form an arc structure, the left side surface of the right insulating support plate 16 is a left straight surface, and the left straight surface and the right arc surface of the right insulating support plate 16 form an arc structure. Taking the left insulating support plate 15 as an example, the right straight surface of the left insulating support plate 15 can increase the contact area between the left insulating support plate 15 and the left short sidewall, thereby ensuring the strength of the left insulating support plate 15. In other embodiments, the right side of the left insulating support plate comprises a cambered surface, an upper straight surface above the cambered surface, and a lower straight surface below the cambered surface, and the left insulating support plate is in a roughly arc-shaped plate structure, and is in contact with the left short side wall through the upper straight surface and the lower straight surface.
In this embodiment, the left insulating support plate 15 and the right insulating support plate 16 are made of laminated wood, which has good insulating property, certain structural strength, and relatively low cost. In other embodiments, the left and right insulating support plates may be made of insulating materials such as insulating resin, glass fiber reinforced plastic, etc., but this is costly.
During manufacturing, the left insulating support plate 15 and the right insulating support plate 16 are respectively bonded on the two short side walls of the barrel body 11, so that the cross section of the insulating barrel is in an oblong shape, and when the low-voltage coil 12 is wound on the two long side walls of the barrel body and the two insulating support plates, the low-voltage coil 12 can be wound more tightly, so that the tightness of the low-voltage coil 12 is improved; then winding an insulating layer 13 on the low-voltage coil 12, and winding a high-voltage coil 14 on the insulating layer 13; after the low voltage coil 12, the insulating layer 13 and the high voltage coil 14 are completely wound, the coils are pressed to further improve the tightness of the coils. Because the low-voltage coil 12 is wound tightly, the low-voltage coil 12 after being pressed is small in deformation, and a gap formed between the low-voltage coil 12 and the insulating cylinder is small. It should be noted that, because the current of the high-voltage coil is small, the deformation of the high-voltage coil is small, and the deformation of the high-voltage coil does not affect the short-circuit resistance of the amorphous alloy transformer. It should be noted that the insulating layer 13 forms the main gallery oil passage.
During a short-circuit test, because the gap between the low-voltage coil 12 and the insulating cylinder is small, the inward shrinkage displacement of the low-voltage coil 12 is small under the action of a short-circuit force, so that the gap between the low-voltage coil 12 and the high-voltage coil 14 is not changed greatly, and the short-circuit resistance of the amorphous alloy transformer can be effectively improved.
The utility model discloses a specific embodiment of an insulating cylinder, the insulating cylinder in this embodiment with the specific embodiment of above-mentioned metallic glass transformer the structure of an insulating cylinder in the same, no longer describe herein.
Claims (10)
1. An insulating cylinder, characterized by comprising:
the cylinder is of a rectangular structure and comprises two long side walls and two short side walls;
the insulating supporting plate is provided with two, correspond with the outer wall adaptation of two short lateral walls of barrel sets firmly on corresponding short lateral wall, and one side that each insulating supporting plate deviates from the barrel is the cambered surface, and the cambered surface extends along the circumference bending of barrel, and the both ends of cambered surface extend to corresponding long lateral wall respectively or extend to corresponding long lateral wall, short lateral wall's transition fillet position department, are equipped with the mounting groove on the cambered surface of one of them in two insulating supporting plates to be used for installing low voltage coil's the copper bar of being qualified for the next round of competitions.
2. The insulation cylinder according to claim 1, wherein two ends of the arc surface respectively extend to the transition fillets of the corresponding long side wall and the short side wall and are in smooth transition connection with the transition fillets.
3. An insulating cylinder according to claim 1 or 2, characterized in that each insulating support plate is glued to a respective short side wall to effect fastening to the respective short side wall.
4. An insulating cylinder according to claim 1 or 2, characterized in that the mounting groove is located in the middle of the respective cambered surface.
5. An insulation cylinder according to claim 1 or 2, characterized in that the insulation support plate is made of laminated wood.
6. An amorphous alloy transformer comprising:
an insulating cylinder;
the low-voltage coil is wound on the insulating cylinder;
the insulating layer is wound on the low voltage coil;
the high-voltage coil is wound on the insulating layer;
the insulating cylinder is characterized by comprising a cylinder body and an insulating support plate, wherein the cylinder body is of a rectangular structure and comprises two long side walls and two short side walls;
the insulating support plate is provided with two, correspond with the outer wall adaptation of two short lateral walls of barrel sets firmly on corresponding short lateral wall, and one side that each insulating support plate deviates from the barrel is the cambered surface, and the cambered surface extends along the circumference bending of barrel, and the both ends of cambered surface extend respectively to corresponding long lateral wall or extend to corresponding long lateral wall, short lateral wall's transition fillet position department, are equipped with the mounting groove on the cambered surface of the insulating support plate that corresponds low-voltage coil and be qualified for the next round of competitions the copper bar in two insulating support plates.
7. The amorphous alloy transformer of claim 6, wherein two ends of the arc surface respectively extend to the transition fillets of the corresponding long side wall and the short side wall and are in smooth transition connection with the transition fillets.
8. An amorphous alloy transformer as claimed in claim 6 or 7, characterised in that each insulating support plate is bonded to a respective short sidewall to effect a fixing to the respective short sidewall.
9. The amorphous alloy transformer of claim 6 or 7, wherein the mounting groove is located at a middle position of the corresponding cambered surface.
10. The amorphous alloy transformer according to claim 6 or 7, wherein the insulation support plate is made of laminated wood.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921911963.1U CN210606931U (en) | 2019-11-07 | 2019-11-07 | Amorphous alloy transformer and insulating cylinder thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921911963.1U CN210606931U (en) | 2019-11-07 | 2019-11-07 | Amorphous alloy transformer and insulating cylinder thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210606931U true CN210606931U (en) | 2020-05-22 |
Family
ID=70698440
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921911963.1U Active CN210606931U (en) | 2019-11-07 | 2019-11-07 | Amorphous alloy transformer and insulating cylinder thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210606931U (en) |
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2019
- 2019-11-07 CN CN201921911963.1U patent/CN210606931U/en active Active
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