CN204559252U - The punching of high efficiency motor rotor - Google Patents
The punching of high efficiency motor rotor Download PDFInfo
- Publication number
- CN204559252U CN204559252U CN201520163850.3U CN201520163850U CN204559252U CN 204559252 U CN204559252 U CN 204559252U CN 201520163850 U CN201520163850 U CN 201520163850U CN 204559252 U CN204559252 U CN 204559252U
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- rotor
- punching body
- stator
- stator slot
- punching
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Abstract
The utility model relates to the punching of a kind of high efficiency motor rotor, and comprise the stator punching body and rotor punching body that cooperatively interact, the internal diameter of described stator punching body is equal with the external diameter of rotor punching body; Described stator punching body along stator slot inside diameter hoop direction offering multiple even arrangement; Described rotor punching body circumferentially offers the rotor of multiple even arrangement, and described rotor quantity is less than the quantity of stator slot, reduces diameter of stator bore, increases the area of stator slot and rotor, eliminates the ventilation hole on rotor punching body; The utility model is simple and reasonable, fully improves the consumption of the utilance, particularly copper product of effective material in original motor space, and electric efficiency promotes obviously; The mould of other constitutional details is still suitable for, and significantly reduces die sinking cost; Do not change the original assembling mode of motor, motor profile is constant, does not affect the installation of client's auxiliary facility.
Description
Technical field
The utility model relates to motor stator&rotor blanking piece field, and especially a kind of is the motor stator&rotor blanking piece structure of 315mm for center height.
Background technology
At present, electromechanics trade is just towards little type, high-effect future development, so actively research and development IE3 efficiency motor becomes the top priority of perceived social support.In order to reduce the loss of electric machine, using more effectively material, lifting motor efficiency under certain installation dimension condition, is only very difficult by lengthening unshakable in one's determination raising the efficiency, so the general way of a lot of Motor Corporation in home and abroad is amplification stator punching external diameter; Thus, the size of electric machine structure part also can be amplified thereupon, and the case members such as support, end cap, fan housing again must be adjusted and design and formulate, and whole motor size becomes greatly also can transform erection unit supporting with it, take time and effort, add production cost.
Utility model content
The applicant is for the shortcoming in above-mentioned existing production technology, a kind of high efficiency motor rotor punching rational in infrastructure is provided, thus under the prerequisite not changing other constitutional details original in motor, change punching inside channel, eliminate the ventilation hole in rotor punching, improve the utilance of copper, save production cost.
The technical scheme that the utility model adopts is as follows:
The punching of a kind of high efficiency motor rotor, comprise the stator punching body and rotor punching body that cooperatively interact, the internal diameter D1 of described stator punching body is equal with the outer diameter D 2 of rotor punching body; Described stator punching body along stator slot inside diameter hoop direction offering multiple even arrangement; Described rotor punching body circumferentially offers the rotor of multiple even arrangement, and described rotor quantity is less than the quantity of stator slot.
Further improvement as technique scheme:
Described stator slot upper end has the semicircle that radius R 1 is 5mm-8mm, and each stator slot groove depth H1 is 48mm-52mm, and each stator slot bottom is symmetrically arranged with interior to bending, described interior to bending part angle of inclination a be 20 °-30 °.
Described stator slot upper end has the semicircle that radius R 1 is 7.5mm, and each stator slot groove depth H1 is 49mm, and each stator slot bottom is symmetrically arranged with interior to bending, described interior to bending part angle of inclination a be 20 °.
Described stator slot upper end has the semicircle that radius R 1 is 5.5mm, and each stator slot groove depth H1 is 52mm, and each stator slot bottom is symmetrically arranged with interior to bending, described interior to bending part angle of inclination a be 30 °.
The stepped structure of described rotor, each rotor upper end is 1-1.5mm apart from the distance H3 on the external edge of rotor punching, and each rotor upper end width B1 is 1mm-2mm, and step place width B 2 is 7mm-10mm, lower end width B3 is 3mm-4mm, and each rotor groove depth H2 is 58mm-60mm.
The stepped structure of described rotor, each rotor upper end is 1.5mm apart from the distance H3 on the external edge of rotor punching, and each rotor upper end width B1 is 1.5mm, and step place width B 2 is 9.5mm, lower end width B3 is 3.3mm, and each rotor groove depth H2 is 58.5mm.
The stepped structure of described rotor, each rotor upper end is 1.2mm apart from the distance H3 on the external edge of rotor punching, and each rotor upper end width B1 is 1.5mm, and step place width B 2 is 7.8mm, and lower end width B3 is 3mm, and each rotor groove depth H2 is 60mm.
Described stator slot quantity is 48, and rotor quantity is 40.
Described stator slot quantity is 72, and rotor quantity is 56.
Described stator punching body and rotor punching body all adopt silicon steel sheet.
The beneficial effects of the utility model are as follows:
The utility model is by changing stator and rotor punching flute profile, do not change stator punching external diameter, the consumption fully improving the utilance, particularly copper product of effective material in original motor space obtains more useful spaces, improved efficiency is obvious, and electric efficiency is promoted to IE3; The utility model is simple and reasonable, and only newly need open punch die, other constitutional detail moulds are still suitable for, and significantly reduce die sinking cost; Do not change the original assembling mode of motor, motor profile is constant, does not affect the installation of client's auxiliary facility.
Accompanying drawing explanation
Fig. 1 is the structural representation of stator punching body of the present utility model.
Fig. 2 is the partial enlarged drawing in A portion in Fig. 1.
Fig. 3 is the structural representation of rotor punching body of the present utility model.
Fig. 4 is the partial enlarged drawing in B portion in Fig. 3.
Wherein: 1, stator punching body; 2, stator slot; 3, stator labeled slots; 4, rotor punching body; 5, rotor; 6, rotor labeled slots.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described.
As shown in Figure 1, Figure 3, the punching of a kind of high efficiency motor rotor, comprise the stator punching body 1 and rotor punching body 4 that cooperatively interact, the internal diameter D1 of stator punching body 1 is equal with the outer diameter D 2 of rotor punching body 4; Stator punching body 1 along the stator slot 2 inside diameter hoop direction offering multiple even arrangement; Rotor punching body 4 circumferentially offers the rotor 5 of multiple even arrangement, and rotor 5 quantity is less than the quantity of stator slot 2.
As shown in Figure 2, stator slot 2 upper end has the semicircle that radius R 1 is 5mm-8mm, and each stator slot 2 groove depth H1 is 48mm-52mm, and each stator slot 2 bottom is symmetrically arranged with interior to bending, interior to bending part angle of inclination a be 20 °-30 °.
As shown in Figure 4, the stepped structure of rotor 5, each rotor 5 upper end is 1-1.5mm apart from the distance H3 of rotor punching body 4 outer, each rotor 5 upper end width B1 is 1mm-2mm, step place width B 2 is 7mm-10mm, lower end width B3 is 3mm-4mm, and each rotor 5 groove depth H2 is 58mm-60mm.
Preferably, stator punching body 1 and rotor punching body 4 all adopt silicon steel sheet.
In order to improve the consumption of copper product, eliminate the ventilation hole on rotor punching body 4, thus increase the flute profile of rotor 5 further.
Concrete manufacture process is as follows: change stator and rotor diel, silicon steel sheet is placed in mould, go out stator punching body 1 as shown in Figure 1, on stator punching body 1, punching goes out several stator slot 2 successively, it is R1 semicircle that stator slot 2 upper end has radius, controls each stator slot 2 groove depth H1 and reaches and meet the requirements; Then in stator punching body 1 outer, place's punching goes out stator labeled slots 3; The like process rotor punching body 4.
In actual use, stator punching body 1 and rotor punching body 4 with the use of, wherein rotor punching body 4 is at inner ring, and stator punching body 1 is in outer ring.
Embodiment one
The punching of a kind of high efficiency motor rotor, comprise the stator punching body 1 and rotor punching body 4 that cooperatively interact, the internal diameter D1 of stator punching body 1 and the outer diameter D 2 of rotor punching body 4 are 280mm; Stator punching body 1 along the stator slots 2 inside diameter hoop direction offering 48 even arrangements; Rotor punching body 4 circumferentially offers 40 rotor 5 of evenly arranging.
Stator slot 2 upper end has the semicircle that radius R 1 is 7.5mm, and each stator slot 2 groove depth H1 is 49mm, and each stator slot 2 bottom is symmetrically arranged with interior to bending, interior to bending part angle of inclination a be 20 °.
The stepped structure of rotor 5, each rotor 5 upper end is 1.5mm apart from the distance H3 of rotor punching body 4 outer, and each rotor 5 upper end width B1 is 1.5mm, and step place width B 2 is 9.5mm, lower end width B3 is 3.3mm, and each rotor 5 groove depth H2 is 58.5mm.
The present embodiment is applied to H315-2-200kW motor, maintains long 440mm unshakable in one's determination constant, stator outside diameter φ 520mm is constant, and after testing, the consumption of the effective material copper of motor and aluminium significantly improves; Because copper and aluminium consumption improve, the loss also corresponding reduction of copper, iron, aluminium, through experiment calculation, wherein the loss value of copper is 1300W, and the loss value of aluminium is 1254W, and the loss value of iron is 2034W, and than original flute profile, each spillage of material on average reduces nearly 25%.
For the low-loss silicon steel sheet of rotor punching structural reform in the present embodiment, silicon steel sheet is a kind of silicon-iron soft magnetic alloy low containing carbon electrode, and general silicon content is 0.5 ~ 4.5%.Add resistivity and maximum permeability that silicon can improve iron, reduce coercive force, core loss (iron loss) and magnetic aging.
Low-loss silicon steel sheet magnetic property is good, and magnetic strength is high, little with plate difference, greatly can reduce exciting curent, can obviously reduce iron loss and stator copper loss.
Meanwhile, use low harmonic winding instead, improvement fan form, can be upgraded to IE3 by motor from IE2 efficiency smoothly.Can find out that electric efficiency is promoted 1 percentage point by the improvement of the present embodiment, more than IE3 efficiency standard from the experimental result of following table.
| Project | Original flute profile | The utility model flute profile |
| Efficiency (%) | 94.81% | 95.81% |
| Temperature rise (K) | 73 | 65 |
| Stator copper loss (W) | 1718 | 1300 |
| Rotor aluminum consumption (W) | 1525 | 1254 |
| Stray loss (W) | 2600 | 2200 |
| Core loss (W) | 2519 | 2034 |
| Mechanical loss (W) | 2000 | 1600 |
Embodiment two
The punching of a kind of high efficiency motor rotor, comprise the stator punching body 1 and rotor punching body 4 that cooperatively interact, the internal diameter D1 of stator punching body 1 and the outer diameter D 2 of rotor punching body 4 are 325mm; Stator punching body 1 along the stator slots 2 inside diameter hoop direction offering 72 even arrangements; Rotor punching body 4 circumferentially offers 56 rotor 5 of evenly arranging.
Stator slot 2 upper end has the semicircle that radius R 1 is 5.5mm, and each stator slot 2 groove depth H1 is 52mm, and each stator slot 2 bottom is symmetrically arranged with interior to bending, interior to bending part angle of inclination a be 30 °.
The stepped structure of rotor 5, each rotor 5 upper end is 1.2mm apart from the distance H3 of rotor punching body 4 outer, and each rotor 5 upper end width B1 is 1.5mm, and step place width B 2 is 7.8mm, and lower end width B3 is 3mm, and each rotor 5 groove depth H2 is 60mm.
The present embodiment is applied to H315-4-200kW motor, maintains long 480mm unshakable in one's determination constant, stator outside diameter φ 520mm is constant, and after testing, the consumption of the effective material copper of motor and aluminium significantly improves; Because copper and aluminium consumption improve, the loss also corresponding reduction of copper, iron, aluminium, through experiment calculation, wherein the loss value of copper is 1501W, and the loss value of aluminium is 1485W, and the loss value of iron is 2010W, and than original flute profile, each spillage of material on average reduces nearly 34%.
For the low-loss silicon steel sheet of rotor punching structural reform in the present embodiment, silicon steel sheet is a kind of silicon-iron soft magnetic alloy low containing carbon electrode, and general silicon content is 0.5 ~ 4.5%.Add resistivity and maximum permeability that silicon can improve iron, reduce coercive force, core loss (iron loss) and magnetic aging.
Low-loss silicon steel sheet magnetic property is good, and magnetic strength is high, little with plate difference, greatly can reduce exciting curent, can obviously reduce iron loss and stator copper loss.
Meanwhile, use low harmonic winding instead, improvement fan form, can be upgraded to IE3 by motor from IE2 efficiency smoothly.Can find out that electric efficiency is promoted 1 percentage point by the improvement of the present embodiment, more than IE3 efficiency standard from the experimental result of following table.
| Project | IE2 flute profile | This IE3 flute profile |
| Efficiency (%) | 94.97% | 96.01% |
| Temperature rise (K) | 78 | 67 |
| Stator copper loss (W) | 2277 | 1559 |
| Rotor aluminum consumption (W) | 1880 | 1530 |
| Stray loss (W) | 2400 | 1850 |
| Core loss (W) | 2543 | 2198 |
| Mechanical loss (W) | 960 | 850 |
The present embodiment is by changing stator and rotor punching flute profile, do not change stator punching external diameter, the consumption fully improving the utilance, particularly copper product of effective material in original motor space obtains more useful spaces, improved efficiency is obvious, and electric efficiency is promoted to IE3.
The utility model is simple and reasonable, and only newly need open punch die, the mould of other position parts is still suitable for, and significantly reduces die sinking cost; And owing to not changing the original assembling mode of motor, motor profile is constant, does not affect the installation of client's auxiliary facility, and this makes client cost reduce.
More than describing is to explanation of the present utility model, and be not the restriction to utility model, the utility model limited range, see claim, within protection range of the present utility model, can do any type of amendment.
Claims (10)
1. a high efficiency motor rotor punching, is characterized in that: comprise the stator punching body (1) and rotor punching body (4) that cooperatively interact, the internal diameter (D1) of described stator punching body (1) is equal with the external diameter (D2) of rotor punching body (4); Described stator punching body (1) along the stator slot (2) inside diameter hoop direction offering multiple even arrangement; Described rotor punching body (4) circumferentially offers the rotor (5) of multiple even arrangement, and described rotor (5) quantity is less than the quantity of stator slot (2).
2. high efficiency motor rotor punching as claimed in claim 1, it is characterized in that: described stator slot (2) upper end has the semicircle that radius (R1) is 5mm-8mm, each stator slot (2) groove depth (H1) is 48mm-52mm, each stator slot (2) bottom is symmetrically arranged with interior to bending, described interior to bending part angle of inclination (a) be 20 °-30 °.
3. high efficiency motor rotor punching as claimed in claim 2, it is characterized in that: described stator slot (2) upper end has the semicircle that radius (R1) is 7.5mm, each stator slot (2) groove depth (H1) is 49mm, each stator slot (2) bottom is symmetrically arranged with interior to bending, described interior to bending part angle of inclination (a) be 20 °.
4. high efficiency motor rotor punching as claimed in claim 2, it is characterized in that: described stator slot (2) upper end has the semicircle that radius (R1) is 5.5mm, each stator slot (2) groove depth (H1) is 52mm, each stator slot (2) bottom is symmetrically arranged with interior to bending, described interior to bending part angle of inclination (a) be 30 °.
5. high efficiency motor rotor punching as claimed in claim 1, it is characterized in that: described rotor (5) stepped structure, each rotor (5) upper end is 1-1.5mm apart from the distance (H3) of rotor punching body (4) outer, each rotor (5) upper end width (B1) is 1mm-2mm, step place width (B2) is 7mm-10mm, lower end width (B3) is 3mm-4mm, and each rotor (5) groove depth (H2) is 58mm-60mm.
6. high efficiency motor rotor punching as claimed in claim 5, it is characterized in that: described rotor (5) stepped structure, each rotor (5) upper end is 1.5mm apart from the distance (H3) of rotor punching body (4) outer, each rotor (5) upper end width (B1) is 1.5mm, step place width (B2) is 9.5mm, lower end width (B3) is 3.3mm, and each rotor (5) groove depth (H2) is 58.5mm.
7. high efficiency motor rotor punching as claimed in claim 5, it is characterized in that: described rotor (5) stepped structure, each rotor (5) upper end is 1.2mm apart from the distance (H3) of rotor punching body (4) outer, each rotor (5) upper end width (B1) is 1.5mm, step place width (B2) is 7.8mm, lower end width (B3) is 3mm, and each rotor (5) groove depth (H2) is 60mm.
8. high efficiency motor rotor punching as claimed in claim 1, it is characterized in that: described stator slot (2) quantity is 48, rotor (5) quantity is 40.
9. high efficiency motor rotor punching as claimed in claim 1, it is characterized in that: described stator slot (2) quantity is 72, rotor (5) quantity is 56.
10. high efficiency motor rotor punching as claimed in claim 1, is characterized in that: described stator punching body (1) and rotor punching body (4) all adopt silicon steel sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520163850.3U CN204559252U (en) | 2015-03-23 | 2015-03-23 | The punching of high efficiency motor rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520163850.3U CN204559252U (en) | 2015-03-23 | 2015-03-23 | The punching of high efficiency motor rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204559252U true CN204559252U (en) | 2015-08-12 |
Family
ID=53834323
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520163850.3U Expired - Fee Related CN204559252U (en) | 2015-03-23 | 2015-03-23 | The punching of high efficiency motor rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204559252U (en) |
-
2015
- 2015-03-23 CN CN201520163850.3U patent/CN204559252U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150812 Termination date: 20210323 |