CN209767261U - winding, generator and wind generating set - Google Patents
winding, generator and wind generating set Download PDFInfo
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- CN209767261U CN209767261U CN201920499710.1U CN201920499710U CN209767261U CN 209767261 U CN209767261 U CN 209767261U CN 201920499710 U CN201920499710 U CN 201920499710U CN 209767261 U CN209767261 U CN 209767261U
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- 238000004804 winding Methods 0.000 title claims abstract description 73
- 239000010410 layer Substances 0.000 claims abstract description 49
- 229910052751 metal Inorganic materials 0.000 claims abstract description 46
- 239000002184 metal Substances 0.000 claims abstract description 46
- 238000000034 method Methods 0.000 claims abstract description 16
- 239000002356 single layer Substances 0.000 claims abstract description 9
- 239000011347 resin Substances 0.000 claims description 19
- 229920005989 resin Polymers 0.000 claims description 19
- 239000000463 material Substances 0.000 claims description 16
- 229920002492 poly(sulfone) Polymers 0.000 claims description 15
- 239000004696 Poly ether ether ketone Substances 0.000 claims description 11
- 230000015556 catabolic process Effects 0.000 claims description 11
- 229920002530 polyetherether ketone Polymers 0.000 claims description 11
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052802 copper Inorganic materials 0.000 claims description 6
- 239000010949 copper Substances 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 4
- 238000005470 impregnation Methods 0.000 claims description 4
- 230000007547 defect Effects 0.000 abstract description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 6
- 238000007789 sealing Methods 0.000 abstract description 6
- 238000009413 insulation Methods 0.000 description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 10
- 239000010445 mica Substances 0.000 description 7
- 229910052618 mica group Inorganic materials 0.000 description 7
- 238000010521 absorption reaction Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 238000013461 design Methods 0.000 description 4
- 238000000071 blow moulding Methods 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 3
- 229910052736 halogen Inorganic materials 0.000 description 3
- 150000002367 halogens Chemical class 0.000 description 3
- 239000000779 smoke Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000005034 decoration Methods 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 239000011149 active material Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229920003055 poly(ester-imide) Polymers 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Landscapes
- Insulation, Fastening Of Motor, Generator Windings (AREA)
Abstract
The embodiment of the application provides a winding, generator and wind generating set, and the winding includes: an insulating sleeve and a plurality of turns of electromagnetic wire. The electromagnetic wire comprises a metal wire and a metal wire insulating layer integrally formed on the surface of the metal wire; the insulating sheath includes a plurality of stacked insulating films; the multi-turn electromagnetic wires form a wire harness according to a preset arrangement mode, and the insulating sleeve is coated on the outer surface of the wire harness. In the winding provided by the embodiment of the application, the metal wire insulating layer of the single-turn electromagnetic wire is of an integrally formed single-layer integral structure, and the integrally formed structure is simpler and easier to control than an insulating film winding process, so that the quality of the metal wire insulating layer can be ensured; compared with the insulating layer with a multilayer structure, the metal wire insulating layer with the single-layer integral structure type has higher sealing and insulating reliability and is not easy to have defects. The metal wire insulating layers of the multi-turn electromagnetic wire are formed by adopting an integral forming process, so that the manufacturing efficiency of the winding can be greatly improved.
Description
Technical Field
The application relates to the technical field of generators, in particular to a winding, a generator and a wind generating set.
background
The generator is a device for converting mechanical energy into electric energy, and the operating environment of the generator is generally severe. Taking the wind power field as an example, wind power generation is one of clean and renewable energy technologies, and is rapidly developed at home and abroad, the proportion occupied by the wind power generation is higher and higher, and in recent years, with the development and application of generator sets in high altitude, coastal areas, sea areas and humid areas, the generators need to be influenced by various factors such as ultraviolet rays, humidity, salt fog and the like. Because the generator is large in size and weight, high in cost occupation ratio and installed at the height of hundreds of meters, the overhauling and maintenance work is high in difficulty and high in price. Therefore, improving the operational reliability and increasing the service life of the motor become important directions for the development of the generator technology.
The winding is a part with concentrated stress and weak strength in the generator, and is also easily influenced by temperature, an electric field, mechanical stress and environmental factors, so that the insulation performance of the winding is a key factor for ensuring the operation reliability and the service life of the motor in various performances of the generator.
In the prior art, the structure and the manufacturing process of each insulating part in a winding are complex, so that the quality of the insulating part is difficult to ensure, and defects are easy to occur in the running process of a generator.
SUMMERY OF THE UTILITY MODEL
The application provides a winding, a generator and a wind generating set aiming at the defects of the prior art, and is used for solving the technical problems existing in the prior art.
In a first aspect, an embodiment of the present application provides a winding, including: an insulating sleeve and a plurality of turns of electromagnetic wires; the electromagnetic wire comprises a metal wire and a metal wire insulating layer integrally formed on the surface of the metal wire; the insulating sheath includes a plurality of stacked insulating films; the multi-turn electromagnetic wires form a wire harness according to a preset arrangement mode, and the insulating sleeve is coated on the outer surface of the wire harness.
In a second aspect, embodiments of the present application provide a generator including a stator including a winding provided by embodiments of the present application.
In a third aspect, an embodiment of the present application provides a wind turbine generator system, including a generator provided in an embodiment of the present application.
the technical scheme provided by the embodiment of the application has the following beneficial technical effects:
In the winding provided by the embodiment of the application, the process of integral forming can adopt an extrusion method or a blow molding method, the metal wire insulating layer of the single-turn electromagnetic wire is of an integral forming single-layer integral structure, and the integral forming is simpler and easier to control than an insulating film winding process, so that the quality of the metal wire insulating layer can be ensured; compared with the insulating layer with a multilayer structure, the metal wire insulating layer with the single-layer integral structure type has higher sealing and insulating reliability and is not easy to have defects. Because the winding usually includes multiturn magnet wire, the metal wire insulating layer of multiturn magnet wire all adopts integrated into one piece technology to form, can greatly promote the preparation efficiency of winding.
Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.
Drawings
The foregoing and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is a schematic diagram of a magnet wire according to an embodiment of the present disclosure;
Fig. 2 is a schematic structural diagram of a winding provided in an embodiment of the present application;
In the figure:
1-an insulating sleeve; 2-an electromagnetic wire; 21-metal wires of magnet wire 2; 22-metal line insulation of magnet line 2; 3-filling part.
Detailed Description
Reference will now be made in detail to the present application, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar parts or parts having the same or similar functions throughout. In addition, if a detailed description of the known art is not necessary for illustrating the features of the present application, it is omitted. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present application and are not to be construed as limiting the present application.
It will be understood by those within the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
as used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. As used herein, the term "and/or" includes all or any element and all combinations of one or more of the associated listed items.
The following describes the technical solutions of the present application and how to solve the above technical problems with specific embodiments.
In some large generators, a winding typically includes multiple turns of electromagnetic wire. The inventors of the present application have found that in the prior art, the insulating member in the winding is usually made of an insulating film wrapped with mica or polyester imide or the like.
Taking mica tape as an example of an insulating film, a manufacturing process of a winding in the prior art generally comprises the following steps: winding a mica tape on the surface of the copper flat wire to form an electromagnetic wire, wherein the mica tape winding layer on the surface of the copper flat wire is an insulating layer of a single-turn electromagnetic wire and is used for inter-turn insulation of each turn of the electromagnetic wire; a plurality of turns of electromagnetic wires are wound into a wire harness, a mica tape is wound on the surface of the wire harness, and the mica tape winding layer on the surface of the wire turn is a common insulating layer of the plurality of electromagnetic wires and used for coil insulation. It can be seen that in the prior art, the insulating layer of the single-turn electromagnetic wire and the common insulating layer of the multi-turn electromagnetic wire are both multilayer structures wound by insulating films (such as mica tape). The winding process of the insulating film in the insulating layer and the multilayer structure of the insulating layer are complex, the quality of the insulating layer is poor, and the insulating layer of the winding is easy to have defects in the running process of the generator.
For the above reasons, the present embodiment provides a winding, as shown in fig. 1 and 2, including: an insulating sheath 1 and a plurality of turns of magnet wire 2. The magnet wire 2 comprises a metal wire 21 and a metal wire insulating layer 22 integrally formed on the surface of the metal wire 21; the insulating sheath 1 includes a plurality of laminated insulating films; the multi-turn electromagnetic wires 2 form a wire harness according to a preset arrangement mode, and the insulating sleeve 1 is coated on the outer surface of the wire harness.
In the winding provided by the embodiment of the application, the process of integral forming can adopt an extrusion method or a blow molding method, the metal wire insulating layer 22 of the single-turn electromagnetic wire 2 is of an integral forming single-layer integral structure, the integral forming is simpler and easier to control compared with an insulating film winding process, and the quality of the metal wire insulating layer 22 can be ensured; moreover, the metal line insulating layer 22 having a single-layered integral structure has higher sealing and insulating reliability and is less likely to be defective than an insulating layer having a multi-layered structure. Because the winding usually includes multiturn magnet wire 2, and metal wire insulating layer 22 of multiturn magnet wire 2 all adopts integrated into one piece technology to form, can greatly promote the efficiency of manufacturing of winding.
Alternatively, in the winding provided in the embodiment of the present application, as shown in fig. 2, the insulating sheath 1 is formed by a single layer of insulating film wound flatly on the wire harness for a plurality of turns. The thickness of the insulating sheath 1 is determined by the number of turns of the insulating film wound around the wire harness and the actual thickness of the insulating film. For example, the desired thickness of the rim is 0.3 mm, the actual thickness of the insulating film is 0.1 mm, and the insulating film needs to be wound flat at least 3 turns at the same location.
optionally, in the winding provided in the embodiment of the present application, the thickness of the insulating sleeve 1 is 0.3 to 0.4 mm, and the thickness of the insulating film is 0.1 to 0.2 mm. The preferred thickness of the insulating sleeve 1 is 0.3 mm or 0.4 mm. The preferred thickness of the insulating film is 0.1 mm or 0.2 mm.
Alternatively, the material of the insulating film includes polyether ether ketone or polysulfone-based resin. The polyether-ether-ketone and polysulfone resin have the characteristics of high temperature resistance, high temperature water vapor resistance, extremely low water absorption rate, wear resistance, good flexibility, low smoke, zero halogen and high flame retardance, so that a generator applying the winding can adapt to severe operating environments (such as sea, high-altitude areas, damp and hot areas and the like). In addition, the ether-ketone and polysulfone resins have the characteristics of high-temperature water vapor resistance and extremely low water absorption rate, the sealing design requirement of the generator can be reduced, the possibility of adopting a natural air-cooled open structure for the generator is provided, the design and manufacturing cost of the generator is reduced, and the self-power consumption of the generator is reduced.
Optionally, in the winding provided in the embodiment of the present application, a filling portion 3 is formed in a gap between two adjacent turns of the magnet wire 2, and the filling portion 3 includes resin filled by a vacuum pressure impregnation method.
gaps may be formed between two adjacent turns of magnet wires 2 due to the loose fitting, or gaps may be formed between two adjacent turns of magnet wires 2 due to the irregular contour of the magnet wires 2. As shown in fig. 2, since the cross section of the magnet wire 2 perpendicular to the length direction is a rounded rectangle, a gap is formed at the opposite corners of two adjacent turns of the magnet wire 2. The filling part 3 is formed by filling resin in the gap by a vacuum pressure impregnation method, and the filling part 3 can play a role in reducing noise, increasing heat transfer efficiency, improving mechanical performance of the winding and the like.
Optionally, in the winding provided in the embodiment of the present application, the thickness of the metal wire insulation layer 22 is 0.3 to 0.7 mm. The actual thickness of the metal wire insulating layer 22 can be determined according to the actual insulation standard requirements of the generator, the series of standards of NB/T31048 wind power generator winding wires, and the integrated molding process level of polyether ether ketone or polysulfone resin. In the embodiment of the present application, the metal line insulating layer 22 preferably has a thickness of 0.3 mm, 0.4 mm, 0.5 mm, 0.6 mm, or 0.7 mm.
Optionally, the material of the metal line insulating layer 22 includes polyetheretherketone or polysulfone-based resin. The polyether-ether-ketone and polysulfone resin have the characteristics of high temperature resistance, high temperature water vapor resistance, extremely low water absorption rate, wear resistance, good flexibility, low smoke, zero halogen and high flame retardance, so that a generator applying the winding can adapt to severe operating environments (such as sea, high-altitude areas, damp and hot areas and the like).
in addition, under the condition of the same thickness, the metal line insulating layer 22 of the embodiment of the present application has stronger breakdown resistance compared to the insulating layer in the prior art. For example, the electrical strength of the peek or the polysulfone-based resin material is 21 kv/mm, and the thickness of the metal wire insulation layer 22 made of the peek or the polysulfone-based resin is 0.3 mm, so the breakdown voltage of the metal wire insulation layer 22 is 6300V; in the series of standards "NB/T31048 winding wire for wind turbines", an insulating layer having a thickness of 0.3 mm has a breakdown voltage of 2500V. Therefore, on the premise of achieving the same breakdown resistance, the thickness of the wire insulation layer 22 of the magnet wire 2 in the embodiment of the present application is thinner than that of the magnet wire 2 in the prior art, so that the occupation ratio of the active material (for example, the material of the metal wire 21) in the magnet wire 2 can be increased properly, and the efficiency of the generator can be further improved.
Optionally, in the winding provided in the embodiment of the present application, the material of the metal wire 21 includes copper or aluminum. Because the polyether-ether-ketone and the polysulfone resin have the high-temperature resistance, the operating temperature range of the winding can be further improved on the basis of the prior art, so that the consumption of copper materials in the metal wire 21 can be reduced, and the possibility of introducing the aluminum flat wire is provided.
Alternatively, in the winding provided in the embodiment of the present application, as shown in fig. 1 and 2, a cross section of the magnet wire 2 perpendicular to the length direction is a rounded rectangle, and a cross section of the winding perpendicular to the length direction is a substantially rectangle. Because the section of the electromagnetic wire 2 perpendicular to the length direction is in a round corner rectangle, the edges of the electromagnetic wire 2 in the length direction are all smooth chamfer curved surfaces, and the insulation sleeve 1 wrapping the multi-turn electromagnetic wire 2 can be prevented from being cut.
Alternatively, in the winding provided in the embodiment of the present application, the multiple turns of magnet wires 2 are arranged in two parallel rows, and the number of magnet wires 2 in each row is equal.
Taking fig. 2 as an example, the winding provided by the embodiment of the present application includes 12 turns of magnet wires 2, and the 12 turns of magnet wires 2 are arranged in two parallel rows, and each row includes 6 turns of magnet wires 2. The 6 turns of magnet wires 2 in one row are opposite to the 6 turns of magnet wires 2 in the other row one by one.
Optionally, in the winding provided in the embodiment of the present application, both the turn-to-turn breakdown voltage and the breakdown voltage to ground of the winding are not less than 12 kv.
it will be appreciated by those skilled in the art that the turn-to-turn breakdown voltage of the winding is dependent upon the thickness of the wire insulation layer 22 of the magnet wire 2 and the electrical strength of the material of the wire insulation layer 22, and the winding-to-ground breakdown voltage is dependent upon the thickness of the insulating sleeve 1 and the electrical strength of the material of the insulating sleeve 1.
based on the same inventive concept, the embodiment of the application also provides a generator, which comprises a stator, wherein the stator comprises the winding provided by the embodiment of the application.
based on the same inventive concept, the embodiment of the application also provides a wind generating set which comprises the generator provided by the embodiment of the application.
By applying the embodiment of the application, at least the following beneficial effects can be realized:
1. In the winding provided by the embodiment of the application, the process of integral forming can adopt an extrusion method or a blow molding method, the metal wire insulating layer of the single-turn electromagnetic wire is of an integral forming single-layer integral structure, and the integral forming is simpler and easier to control than an insulating film winding process, so that the quality of the metal wire insulating layer can be ensured; compared with the insulating layer with a multilayer structure, the metal wire insulating layer with the single-layer integral structure type has higher sealing and insulating reliability and is not easy to have defects. Because the winding usually includes multiturn magnet wire, the metal wire insulating layer of multiturn magnet wire all adopts integrated into one piece technology to form, can greatly promote the preparation efficiency of winding.
2. In the winding provided by the embodiment of the application, the material of the insulating film comprises polyether-ether-ketone or polysulfone resin. The polyether-ether-ketone and polysulfone resin have the characteristics of high temperature resistance, high temperature water vapor resistance, extremely low water absorption rate, wear resistance, good flexibility, low smoke, zero halogen and high flame retardance, so that a generator applying the winding can adapt to severe operating environments (such as sea, high-altitude areas, damp and hot areas and the like).
in addition, the ether-ketone and polysulfone resins have the characteristics of high-temperature water vapor resistance and extremely low water absorption rate, the sealing design requirement of the generator can be reduced, the possibility of adopting a natural air-cooled open structure for the generator is provided, the design and manufacturing cost of the generator is reduced, and the self-power consumption of the generator is reduced.
3. The winding provided by the embodiment of the application adopts a vacuum pressure impregnation method to fill resin in a gap between two adjacent turns of electromagnetic wires to form a filling part, and the filling part can play a role in reducing noise, increasing heat transfer efficiency, improving mechanical performance of the winding and the like.
4. On the premise of reaching the same breakdown resistance, compared with the electromagnetic wire in the prior art, the thickness of the metal wire insulating layer of the electromagnetic wire in the embodiment of the application is thinner, the occupation ratio of effective materials (such as the materials of the metal wire) can be properly increased in the electromagnetic wire, and the efficiency of the generator is further improved.
5. In the winding provided by the embodiment of the application, as the polyetheretherketone and the polysulfone resin have the high-temperature resistance, the operating temperature range of the winding can be further improved on the existing basis, the consumption of copper materials in the metal wire can be reduced, and the possibility of introducing the aluminum flat wire is provided.
6. in the winding that this application embodiment provided, because the perpendicular length direction's of magnet wire cross-section is fillet rectangle, consequently the length direction's of magnet wire edge is slick and sly chamfer curved surface, and this can avoid cutting the insulating cover of wrapping multiturn magnet wire.
In the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the description herein, particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.
The foregoing is only a partial embodiment of the present application, and it should be noted that, for those skilled in the art, several modifications and decorations can be made without departing from the principle of the present application, and these modifications and decorations should also be regarded as the protection scope of the present application.
Claims (10)
1. A winding, comprising: an insulating sleeve (1) and a plurality of turns of electromagnetic wires (2);
the electromagnetic wire (2) comprises a metal wire (21) and a metal wire insulating layer (22) which is integrally formed on the surface of the metal wire (21); the insulating sheath (1) comprises a plurality of laminated insulating films;
The multi-turn electromagnetic wires (2) form a wire harness according to a preset arrangement mode, and the insulating sleeve (1) is coated on the outer surface of the wire harness.
2. The winding of claim 1, comprising at least one of:
The insulating sleeve (1) is formed by a single-layer insulating film which is wound on the wire harness in a flat mode for multiple turns;
The material of the insulating film comprises polyether-ether-ketone or polysulfone resin.
3. A winding according to claim 1, characterized in that the thickness of the insulating sleeve (1) is 0.3 to 0.4 mm and the thickness of the insulating film is 0.1 to 0.2 mm.
4. Winding according to claim 1,
A filling part (3) is formed in a gap between every two adjacent turns of the electromagnetic wire (2); the filling section (3) includes a resin filled by a vacuum pressure impregnation method.
5. The winding of claim 1, comprising at least one of:
The thickness of the metal wire insulating layer (22) is 0.3 to 0.7 mm;
The material of the metal wire insulating layer (22) comprises polyether-ether-ketone or polysulfone resin;
The material of the metal wire (21) comprises copper or aluminum.
6. A winding according to claim 1, characterized in that the cross-section of the magnet wire (2) perpendicular to its length direction is rounded rectangular; the winding is substantially rectangular in cross section perpendicular to the length direction.
7. A winding according to claim 6, characterized in that the turns of magnet wires (2) are arranged in two juxtaposed rows, and that the number of magnet wires (2) in each row is equal.
8. The winding of claim 1, comprising: the turn-to-turn breakdown voltage and the ground breakdown voltage of the winding are both not less than 12 kilovolts.
9. A generator comprising a stator, characterized in that the stator comprises a winding according to any of claims 1-8.
10. A wind power plant comprising a generator according to claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920499710.1U CN209767261U (en) | 2019-04-12 | 2019-04-12 | winding, generator and wind generating set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920499710.1U CN209767261U (en) | 2019-04-12 | 2019-04-12 | winding, generator and wind generating set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209767261U true CN209767261U (en) | 2019-12-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920499710.1U Active CN209767261U (en) | 2019-04-12 | 2019-04-12 | winding, generator and wind generating set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209767261U (en) |
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2019
- 2019-04-12 CN CN201920499710.1U patent/CN209767261U/en active Active
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