CN2909668Y - Stator lamination of electric machine - Google Patents
Stator lamination of electric machine Download PDFInfo
- Publication number
- CN2909668Y CN2909668Y CN 200620083705 CN200620083705U CN2909668Y CN 2909668 Y CN2909668 Y CN 2909668Y CN 200620083705 CN200620083705 CN 200620083705 CN 200620083705 U CN200620083705 U CN 200620083705U CN 2909668 Y CN2909668 Y CN 2909668Y
- Authority
- CN
- China
- Prior art keywords
- line embedding
- inserted wiring
- groove
- stator sheet
- winding
- 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
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- Iron Core Of Rotating Electric Machines (AREA)
Abstract
A stator 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. 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 is central symmetric. The height H and the roof width h of four inserted wiring troughs at each of the four corners of the stator sheet are greater than that of other inserted wiring troughs. The 16 inserted wiring troughs at four corners are of the same shape and size. The distance abetween an exterior arc of the two middle inserted wiring troughs at each corner and an interior arc of a clamping orifice or a semi-orifice is the same as width of the four yokes. The total of inserted wiring troughs is 24. The principal and secondary windings can realize the inserted winding of non-quadrature winding and distribution of quadrature winding, thereby enhancing the direction-fixed starting torque and the minimum torque of the electric motor. On the premise of meeting the performance requirements, lacquered wires of the principal and secondary windings can be saved and so is the capacitance, thereby reducing the cost. 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 improvement of the stator punching of motor.
Background technology
The line embedding groove that the stator punching of motor comprises yoke, is positioned at the endoporus of yoke central authorities and is distributed on the endoporus 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 punching of motor is provided.Its main winding and auxiliary winding can realize that nonopiate winding rule and positive chorded winding distribute.The whole magnetic circuit of its stator 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 directional starting torque of motor and the raising of pull up torque.
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 the endoporus periphery respectively.The groove top of line embedding groove is a semi-closed port for circular, notch.Whole punching is symmetry with the center.High H of groove of its each four line embedding grooves of four jiaos and top width h are respectively greater than the groove height and the top width of all the other line embedding grooves, and the shape and size of 16 line embedding grooves altogether of four jiaos are identical.The external arc of two line embedding grooves in centre at each angle is identical with the width b apart from a and four limit yoke portions of fixing interior circular arc with hole or half hole.
The sum of line embedding groove can be 24.
High H of groove of each four line embedding groove that stator punching is four jiaos and top width h are greater than the groove height and the top width of remaining line embedding groove, and the external arc of two line embedding grooves in centre at each angle is identical with the width b apart from a and four limit yoke portions of fixing interior circular arc with hole or half hole, 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.
This shape of line embedding groove 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 utility model main winding and auxiliary winding can realize that nonopiate winding rule and positive chorded winding distribute, and can improve the directional starting torque and the pull up torque of motor.Reaching under the prerequisite of performance requirement, can save the enamelled wire of main winding and auxiliary winding, save capacitance, reduce motor cost.The whole magnetic circuit of its stator 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.Can be widely used in the various motor.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
Embodiment 1.A kind of stator punching of motor, as shown in Figure 1.It comprises yoke 1, is positioned at the endoporus 2 of yoke 1 central authorities and the line embedding groove that is distributed on endoporus 2 peripheries respectively.The groove top 3 of line embedding groove is that circle, notch 4 are semi-closed port.Whole punching is symmetry with the center.High H of groove of its each four line embedding grooves of four jiaos and top width h are respectively greater than the groove height and the top width of all the other line embedding grooves, and the shape and size of 16 line embedding grooves 5 altogether of four jiaos are identical.The external arc of two line embedding grooves 5 in centre at each angle is identical with the width b apart from a and four limit yoke portions of fixing interior circular arc with hole or half hole 6.
Line embedding groove add up to 24.That is all the other less line embedding grooves 7 are 8.
Claims (2)
1. the stator punching of a motor, comprise yoke, the line embedding groove that is positioned at the endoporus of yoke central authorities and is distributed on the endoporus periphery respectively, the groove top of line embedding groove is for circular, notch is a semi-closed port, whole punching is symmetry with the center, it is characterized in that the groove height (H) of its each four line embedding grooves of four jiaos and top width (h) are respectively greater than the groove height and the top width of all the other line embedding grooves, the shape and size of 16 line embedding grooves altogether of four jiaos are identical, and the external arc of two line embedding grooves in centre at each angle is identical with the width (b) of four limit yoke portions with the distance (a) of fixing interior circular arc with hole or half hole.
2. according to the stator punching of the described motor of claim 1, it is characterized in that add up to 24 of said line embedding groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620083705 CN2909668Y (en) | 2006-04-25 | 2006-04-25 | Stator lamination of electric machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620083705 CN2909668Y (en) | 2006-04-25 | 2006-04-25 | Stator lamination of electric machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2909668Y true CN2909668Y (en) | 2007-06-06 |
Family
ID=38128878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620083705 Expired - Fee Related CN2909668Y (en) | 2006-04-25 | 2006-04-25 | Stator lamination of electric machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2909668Y (en) |
-
2006
- 2006-04-25 CN CN 200620083705 patent/CN2909668Y/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 |