CN204559275U - For rotor winding and use its rotor and motor - Google Patents
For rotor winding and use its rotor and motor Download PDFInfo
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- CN204559275U CN204559275U CN201520158735.7U CN201520158735U CN204559275U CN 204559275 U CN204559275 U CN 204559275U CN 201520158735 U CN201520158735 U CN 201520158735U CN 204559275 U CN204559275 U CN 204559275U
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Abstract
The utility model provides a kind of winding for rotor, it is characterized in that, described winding is the structure of the shaping winding of a kind of individual layer, and the front projection of described winding is roughly in trapezoidal.The utility model additionally provides a kind of rotor using this winding, described rotor comprises rotor core and multiple winding, the periphery of wherein said rotor core is provided with multiple groove extended along rotor axial, described winding embeds in described groove, and described winding draws in towards rotor axis in the end of described rotor.In addition, the utility model additionally provides a kind of motor using this rotor.By said structure, the cooling effect of motor can be significantly improved, improve copper factor, thus higher power can be reached in equal volume situation.
Description
Technical field
The utility model relates to a kind of winding for rotor and uses rotor and the motor of this winding, especially, relates to a kind of winding for double-fed generator amature and uses rotor and the generator of this winding.
Background technology
In the wind-driven generator application that output is larger, because its market price is lower, in order to ensure generation trade benefit, how to improve the quality of products and efficiency control simultaneously and reduce that product cost just becomes very important.
At present, waveform winding is a kind of common winding method for double-fed generator amature, and stacked winding is the common winding method for generator unit stator.From material and manufacture angle, rotor windings is very different from stator winding, this means can not use identical machinery and tools in rotor and stator winding.The skill of same required operative employee is also different.From quality and production angle, rotor windings and stator winding are also very different, and such as production rotor operation work must grasp certain skill just can guarantee high-quality brazing.
Although existing structure also can work well, for the requirement to quality, efficiency and cost etc., still need to improve existing rotor winding structure.
Utility model content
The purpose of this utility model is the defect overcoming prior art, provides a kind of winding for rotor and uses rotor and the motor of this winding.
For achieving the above object, the utility model provides following technical scheme:
For a winding for rotor, it is characterized in that, described winding is the structure of the shaping winding of a kind of individual layer, and the front projection of described winding is in roughly trapezoidal.
In one embodiment, described trapezoidal be isosceles trapezoid.
In one embodiment, described trapezoidal lower base angle is in the scope of about 30 degree to 75 degree.
In one embodiment, the upper base of described winding is substantially vertical with the plane at place, bottom.
In one embodiment, described winding is formed by the electromagnetic wire lap wound of square-section.
The invention also discloses a kind of rotor, it is characterized in that, described rotor comprises rotor core and multiple above-mentioned winding, the periphery of wherein said rotor core is provided with multiple groove extended along rotor axial, described winding embeds in described groove, and described winding draws in towards rotor axis in the end of described rotor.
In one embodiment, described winding comprises base and bottom, the upper base of described winding embeds in described groove every a described groove successively, the bottom of described winding embeds in described groove successively every a described groove, and the upper base of same trapezoidal winding and bottom are embedded into respectively and are separated by two grooves of several grooves.
In one embodiment, described rotor is the rotor for double-fed generator.
The invention also discloses a kind of motor, it is characterized in that, comprise rotor as above.
In one embodiment, described motor is double-fed generator.
By said structure disclosed in the utility model, the cooling effect of motor can be significantly improved, improve copper factor, thus higher power can be reached in equal volume situation, thus reduce the use amount of copper.In addition, trapezoidal winding allows to use parallel conductor and continuous conductor.This makes electrical design have more freely can select suitable winding factor.
Accompanying drawing explanation
Fig. 1 shows the stereogram of the winding according to a kind of execution mode;
Fig. 2 shows the front view of winding shown in Fig. 1;
Fig. 3 shows the left view of winding shown in Fig. 2;
Fig. 4 and Fig. 5 shows the process stacking winding in process winding being inserted rotor core groove gradually;
Fig. 6 illustrates the schematic diagram of inserting the winding rotor core groove from the viewing of rotor one end, and;
Fig. 7 illustrates the right-hand end partial enlarged drawing of the rotor assembled.
Embodiment
Below with reference to accompanying drawing, give the specific descriptions of Alternate embodiments of the present utility model.
As shown in Figures 1 to 3, a kind of execution mode of the present utility model provides a kind of trapezoidal winding for generator amature, and it is a kind of shaping winding of individual layer formed by the electromagnetic wire lap wound of such as square-section, and winding overhang is bent the direction towards armature spindle.After winding is arranged on rotor core, this structure also can be equivalent to a fan with the inner wind path circulation of amplification generator, below will have more detailed description.
As shown in Figure 2, the front projection of the winding that the application proposes, roughly in trapezium structure, is preferably the form of isosceles trapezoid.Conveniently understand, in the application, shorter base 10 is referred to as upper base, longer base 20 is referred to as bottom.
In the preferred implementation that the application proposes, lower base angle is preferably between 30 to 75 degree.Upper base 10 is as shown in Figure 2 in the layout substantially vertical with paper, and bottom 20 is in the layout almost parallel with paper, and namely the upper base 10 of winding is substantially vertical with the plane at place, bottom 20, and two sides of winding then play the effect of transition in centre.Should be appreciated that Fig. 2 is only schematic object, the structure of the application is not limited thereto.Depend on the concrete fit structure of trapezoidal winding and rotor core, such as bottom can have a certain degree with paper and non-parallel.
Distance between the upper base 10 of winding and bottom 20 depends on the pitch of rotor, is therefore no longer described in detail herein.The concrete structure of rotor is also depended on upper base 10, position relationship between bottom 20 and two sides 30, and those skilled in the art can adjust according to concrete demand, therefore also no longer describe herein.
When mounted, multiple trapezoidal winding is embedded in the groove of rotor core periphery successively, as shown in Figs. 4-6.The upper base 10 of trapezoidal winding embeds in the groove of rotor core successively every a groove.The bottom 20 of trapezoidal winding embeds in the groove of rotor core successively every a groove.The upper base of same trapezoidal winding and bottom are embedded into respectively to be separated by two grooves of several grooves.Upper base or the bottom of a winding is only embedded in a groove.After trapezoidal winding is embedded rotor core completely, shaping rotor end-face view as shown in Figure 6.
As shown in Figure 7, by the trapezoidal winding adopting the application to propose, after winding is embedded rotor core, the winding of two ends of rotor is towards rotor axis inward collapsible, and rotor winding end structure as a fan, thus along with rotor rotation, can significantly improve cooling effect.
In addition, in traditional waveform winding, copper factor is roughly 70%.What embed in a groove due to waveform winding is upper and lower two-layer coil, and layer insulation is essential.And use the copper factor of the rotor of trapezoidal winding to be significantly improved, because only embed one deck coil in a groove, in a kind of scheme, such as show it reaches 76%, thus loss is reduced, thus can reach higher power in equal volume situation.
When reaching Same Efficieney, trapezoidal winding obviously reduces relative to waveform winding overhang length, and this can reduce the use amount of copper.Equally, the use amount of insulating material also can reduce.The manufacturing process of copper and the different of waveform winding in trapezoidal winding, therefore the expense of per kilogram copper will be more cheap.By using the electromagnetic wire lap wound of such as square-section to form rotor windings, material, machine and the instrument identical with manufacturing stator winding can be adopted, thus effectively reduce costs.
In addition, trapezoidal winding allows to use parallel conductor and continuous conductor.This makes electrical design have more freely can select suitable winding factor.
Although illustrate and describe the utility model with reference to some preferred embodiment of the present utility model, but it will be appreciated by those skilled in the art that, when not deviating from spirit and scope of the present utility model as defined in appended claims, can make a variety of changes it in the form and details.
Claims (10)
1. for a winding for rotor, it is characterized in that, described winding is the structure of the shaping winding of a kind of individual layer, and the front projection of described winding is roughly in trapezoidal.
2. winding according to claim 1, is characterized in that, described trapezoidal be isosceles trapezoid.
3. winding according to claim 2, is characterized in that, described trapezoidal lower base angle is in the scope of about 30 degree to 75 degree.
4. winding according to claim 3, is characterized in that, the upper base of described winding is substantially vertical with the plane at place, bottom.
5. winding according to any one of claim 1 to 4, is characterized in that, described winding is formed by the electromagnetic wire lap wound of square-section.
6. a rotor, it is characterized in that, described rotor comprises rotor core and multiple winding according to any one of Claims 1-4, the periphery of wherein said rotor core is provided with multiple groove extended along rotor axial, described winding embeds in described groove, and described winding draws in towards rotor axis in the end of described rotor.
7. rotor according to claim 6, it is characterized in that, described winding comprises base and bottom, the upper base of described winding embeds in described groove every a described groove successively, the bottom of described winding embeds in described groove successively every a described groove, and the upper base of same trapezoidal winding and bottom are embedded into respectively and are separated by two grooves of several grooves.
8. the rotor according to claim 6 or 7, is characterized in that, described rotor is the rotor for double-fed generator.
9. a motor, is characterized in that, comprises rotor as claimed in claims 6 or 7.
10. motor according to claim 9, is characterized in that, described motor is double-fed generator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520158735.7U CN204559275U (en) | 2015-03-19 | 2015-03-19 | For rotor winding and use its rotor and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520158735.7U CN204559275U (en) | 2015-03-19 | 2015-03-19 | For rotor winding and use its rotor and motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204559275U true CN204559275U (en) | 2015-08-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520158735.7U Active CN204559275U (en) | 2015-03-19 | 2015-03-19 | For rotor winding and use its rotor and motor |
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| CN (1) | CN204559275U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104716764A (en) * | 2015-03-19 | 2015-06-17 | Abb技术有限公司 | Winding for motor rotor, rotor using the same and motor |
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2015
- 2015-03-19 CN CN201520158735.7U patent/CN204559275U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104716764A (en) * | 2015-03-19 | 2015-06-17 | Abb技术有限公司 | Winding for motor rotor, rotor using the same and motor |
| CN104716764B (en) * | 2015-03-19 | 2018-03-27 | Abb技术有限公司 | For rotor winding and use its rotor and motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180528 Address after: Baden, Switzerland Patentee after: ABB TECHNOLOGY LTD. Address before: Zurich Patentee before: ABB T & D Technology Ltd. |