CN2909666Y - Stator and rotor lamination of electric machine - Google Patents
Stator and rotor lamination of electric machine Download PDFInfo
- Publication number
- CN2909666Y CN2909666Y CN 200620083450 CN200620083450U CN2909666Y CN 2909666 Y CN2909666 Y CN 2909666Y CN 200620083450 CN200620083450 CN 200620083450 CN 200620083450 U CN200620083450 U CN 200620083450U CN 2909666 Y CN2909666 Y CN 2909666Y
- Authority
- CN
- China
- Prior art keywords
- stator
- sheet
- line embedding
- inserted wiring
- groove
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
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- Iron Core Of Rotating Electric Machines (AREA)
Abstract
A stator sheet and rotor sheet for electric motors comprises a field yoke, an interior orifice in the center of the field yoke and inserted wiring troughs distributed on the rim the interior orifice or the circumference of an excircle. A roof of the inserted wiring trough of the stator sheet is round, and a notch of the inserted wiring trough of the stator sheet is semi-closed. The stator sheet and rotor sheet are both central symmetric. The height H and the roof width h of the two inserted wiring troughs at each of the four corners of the stator sheet are greater than that of other inserted wiring troughs. The eight inserted wiring troughs at four corners are of the same shape and size. The distance b between an exterior arc of the two inserted wiring troughs at a corner and an interior arc of a clamping orifice or a semi-orifice is the same as width a of the four yokes. The roof of the inserted wiring trough of the rotor sheet is equilaterally triangular, and the bottom of the inserted wiring trough of the rotor sheet is round. The magnetic circuit of the stator sheet and rotor sheet tends to be uniform, decreasing the iron loss and magnetic hysteresis loss, so the efficiency of the electric motor increases, which is favorable for distribution of inserted wires by sinusoidal winding, the formation of magnetomotive sinusoidal wave, and the improvement of the start ability and performance of the electric motor. The the device can widely apply to various kinds of electric motors.
Description
Technical field
The utility model belongs to the motor technology field, more particularly relates to the design improvement of the stator and the rotor punching of motor.
Background technology
The line embedding groove that the stator of motor and rotor punching include yoke, are positioned at the endoporus of yoke central authorities and are distributed on endoporus or circumferential periphery is respectively made by the silicon steel sheet punching press.Be formation stator that some punchings are stacked, four jiaos of stator punching also have fixing with hole or half hole.
The shape and size of all line embedding grooves of traditional stator punching are identical, and its groove top mostly is circular, and notch then is a semi-closed port.Because its four jiaos need punching out fixing with hole or half hole, thereby the yoke portion of broad is arranged.During work, the magnetic flux density of this broad yoke portion that is magnetic flux density also just reduce relatively, cause the inhomogeneous of whole magnetic circuit.And the inhomogeneous iron loss and the magnetic hysteresis loss of can making of magnetic circuit all increases, and finally reduced efficiency of motor.
In addition, identical line embedding groove shape is unfavorable for adopting positive chorded winding distribution rule, also just is unfavorable for the sine-shaped formation of magnetic potential, is unfavorable for the starting performance of motor and the raising of runnability.
Summary of the invention
The purpose of this utility model just is to overcome above-mentioned shortcoming and defect, and a kind of stator and rotor punching of motor is provided.It more becomes evenly the whole magnetic circuit of stator and rotor, and iron loss and magnetic hysteresis loss reduce, and electric efficiency improves.Help adopting positive chorded winding distribution rule, also just help the sine-shaped formation of magnetic potential, help the starting performance of motor and the raising of runnability.
In order to achieve the above object, the utility model line embedding groove of comprising yoke, being positioned at the endoporus of yoke central authorities and being distributed on endoporus or circumferential periphery respectively.The groove top of stator punching line embedding groove is a semi-closed port for circular, notch.Stator and rotor punching all are symmetry with the center.The high H of groove of four jiaos of each middle two line embedding grooves of stator punching and top width h are greater than the groove height and the top width of all the other line embedding grooves.The shape and size of 8 line embedding grooves altogether in the middle of four angles are identical, and the external arc of two line embedding grooves in centre at each angle is identical with the width a that fixes with the distance b of the interior circular arc in hole or half hole and four limit yoke portions.
The high H of groove of four jiaos of each middle two line embedding grooves of stator punching and top width h are greater than remaining line embedding groove, and the width a of the distance b of the external arc of these two line embedding grooves and fixing interior circular arc with hole or half hole and four limit yoke portions is identical, this just makes the whole magnetic circuit of stator and rotor more become even, iron loss and magnetic hysteresis loss reduce, and electric efficiency improves.The groove top of rotor punching line embedding groove is equilateral triangle, and bottom land is circular.
This shape of stator and rotor line embedding groove then all helps adopting positive chorded winding distribution rule, also just helps the sine-shaped formation of magnetic potential, helps the starting performance of motor and the raising of runnability.
Task of the present utility model comes to this and finishes.
The whole magnetic circuit of the utility model stator and rotor more becomes evenly, and iron loss and magnetic hysteresis loss reduce, and electric efficiency improves.Help adopting positive chorded winding distribution rule, also just help the sine-shaped formation of magnetic potential, help the raising of electric motor starting performance and runnability.It can be widely used in the various motor.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the schematic diagram after stator and the rotor punching assembling.
Embodiment
Embodiment 1.A kind of stator of motor and rotor punching are as Fig. 1～shown in Figure 2.The line embedding groove 6 and 11 that it comprises yoke 1, is positioned at the endoporus 5 of yoke 1 central authorities and is distributed on endoporus 5 or circumferential periphery respectively.The groove top 2 of the line embedding groove 6 of stator punching 7 is that circle, notch 9 are semi-closed port.Stator and rotor punching 7 and 8 all are symmetry with the center.High H of groove of 7 four jiaos of each middle two line embedding grooves 4 (being arranged in 3) of stator punching and top width h are greater than the groove height and the top width of all the other line embedding grooves 6.The shape and size of 8 line embedding grooves 4 altogether in the middle of four angles are identical, and the external arc of two line embedding grooves 4 in centre at each angle is identical with the width a that fixes with the distance b of the interior circular arc in hole or half hole 10 and four limit yoke portions.
The groove top 12 of the line embedding groove 11 of rotor punching 8 is an equilateral triangle, and bottom land 13 is circular.
Embodiment 1 more becomes evenly the whole magnetic circuit of stator and rotor, and iron loss and magnetic hysteresis loss reduce, and electric efficiency improves.Help adopting positive chorded winding distribution rule, also just help the sine-shaped formation of magnetic potential, help the raising of electric motor starting performance and runnability.It can be widely used in the various motor.
Claims (2)
1. the stator of a motor and rotor punching, comprise yoke, the line embedding groove that is positioned at the endoporus of yoke central authorities and is distributed on endoporus or circumferential periphery respectively, the groove top of stator punching line embedding groove is for circular, notch is a semi-closed port, stator and rotor punching all are symmetry with the center, it is characterized in that the groove height (H) of each two line embedding groove in the middle of four jiaos of the stator punchings and top width (h) groove height and top width greater than all the other line embedding grooves, the shape and size of 8 line embedding grooves altogether in the middle of four angles are identical, and the distance (b) of the external arc of two line embedding grooves in centre at each angle and fixing interior circular arc with hole or half hole is identical with the width (a) of four limit yoke portions.
2. according to the stator and the rotor punching of the described motor of claim 1, it is characterized in that the groove top of said rotor punching line embedding groove is equilateral triangle, bottom land is circular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620083450 CN2909666Y (en) | 2006-04-21 | 2006-04-21 | Stator and rotor lamination of electric machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620083450 CN2909666Y (en) | 2006-04-21 | 2006-04-21 | Stator and rotor lamination of electric machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2909666Y true CN2909666Y (en) | 2007-06-06 |
Family
ID=38128876
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620083450 Expired - Fee Related CN2909666Y (en) | 2006-04-21 | 2006-04-21 | Stator and rotor lamination of electric machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2909666Y (en) |
-
2006
- 2006-04-21 CN CN 200620083450 patent/CN2909666Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |