CN102055288A - Rotor of high-efficiency and ultrahigh-efficiency three-phase asynchronous motor - Google Patents
Rotor of high-efficiency and ultrahigh-efficiency three-phase asynchronous motor Download PDFInfo
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- CN102055288A CN102055288A CN2009102115441A CN200910211544A CN102055288A CN 102055288 A CN102055288 A CN 102055288A CN 2009102115441 A CN2009102115441 A CN 2009102115441A CN 200910211544 A CN200910211544 A CN 200910211544A CN 102055288 A CN102055288 A CN 102055288A
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- cast aluminium
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- end ring
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Abstract
The invention relates to a rotor of a high-efficiency and ultrahigh-efficiency three-phase asynchronous motor, which comprises a rotor iron core, two cast-aluminum end rings and a plurality of fan blades, wherein the two cast-aluminum end rings are positioned at the end part of the rotor iron core, and the fan blades are positioned on the outer end surfaces of the two cast-aluminum end rings; and the rotor has the characteristics that the fan blades are uniformly distributed on the outer end surfaces at both ends of the two cast-aluminum end rings, and each fan blade is respectively in the shape of a spiral arc. After the technical scheme is adopted, the wind power and the wind quantity generated by the fan blades when the rotor rotates are improved compared with those of traditional motor fan blades, and the flow direction of cooling wind becomes more reasonable; and under the condition of no increase of the volume and the cost, the quantity of the wind flowing in the axial direction and the radial direction of the rotor is increased, and the cooling effect of the three-phase asynchronous motor is effectively improved, so that the temperature rise of the high-efficiency and ultrahigh-efficiency three-phase asynchronous motor can be decreased by more than 3 percent, the electric performance of the high-efficiency and ultrahigh-efficiency three-phase asynchronous motor is improved, and the service life of the motor is prolonged.
Description
Technical field
The present invention relates to the motor technology field, be specifically related to a kind of rotor of efficient, ultra high efficiency threephase asynchronous.
Background technology
The use of motor is quite general in daily life, and people are also constantly improving and improving the manufacturing process of motor performance and motor according to the difference of use occasion simultaneously.
In the rotor manufacturing process of original traditional threephase asynchronous, what adopt is to be provided with radially fan blade on the both ends of the surface of casting aluminum rotor end ring, and radially fan blade is generally linear, utilizes the rotor rotation of motor, produce the footpath aweather, reach the effect that makes the motor cooling.
Because radially the air quantity of fan blade generation is very little, cooling airflow is to not being quite reasonable, and is lower to the effect of motor cooling, and the power output that influences motor improves, and is unfavorable to the insulating material in the motor, thereby shortens the useful life of motor.
How improving this defective, improve the useful life of motor, is that motor manufacturing technical staff will constantly make great efforts the direction studied.
Summary of the invention
In order to overcome the deficiencies in the prior art, the rotor that the purpose of this invention is to provide a kind of efficient, ultra high efficiency threephase asynchronous, improve the cooling effect of threephase asynchronous effectively, thereby improved its electric property, reach the useful life that prolongs motor.
A kind of technical scheme that realizes above-mentioned purpose is: a kind of rotor of efficient, ultra high efficiency threephase asynchronous, comprise that rotor core, two are in the cast aluminium end ring at rotor core two ends, some fan blades that is in two cast aluminium end ring outer faces, described some fan blades are evenly distributed on the outer face at described cast aluminium end ring two ends, and the equal arcuation in the shape of a spiral of described each fan blade shape.
Described fan blade and cast aluminium end ring form for the cast aluminium casting with one.
Described fan blade also can be the parts that are fixed on the described cast aluminium end ring outer face.
Described rotor core has central shaft hole, to the formed annulus of internal diameter circumferential edge of described cast aluminium end ring, is uniform-distribution with several along the axial wind-guiding cooling through hole of rotor core in the circumferential edge of described axis hole.
After having adopted above-mentioned technical scheme, fan blade produces when making the rotor rotation wind-force and air quantity have had raising than the conventional electric machine blade, it is more reasonable that the flow direction of cooling air becomes, do not increasing under volume and the condition of cost, increased the air quantity of rotor axial and Radial Flow, effectively raise the cooling effect of this threephase asynchronous, make temperature rise efficient, the ultra high efficiency threephase asynchronous can descend more than 3%, thereby improved its electric property, reached the useful life that prolongs motor.
Description of drawings
Fig. 1 is a partial structurtes schematic diagram of the present invention;
Fig. 2 is the partial schematic diagram of overlooking of Fig. 1;
Fig. 3 looks partial schematic diagram for the right side of Fig. 1.
Embodiment
In order to understand technical scheme of the present invention better, below by specific embodiment and Fig. 1, Fig. 2, Fig. 3 in conjunction with the accompanying drawings be described in detail.
See also Fig. 1, Fig. 2 and Fig. 3, the rotor of a kind of efficient, ultra high efficiency threephase asynchronous of the present invention, comprise that rotor core 3, two are in the cast aluminium end ring 2 at rotor core two ends, some fan blades 1 that is in two cast aluminium end ring outer faces, some fan blades 1 are evenly distributed on the outer face at described cast aluminium end ring 2 two ends, and the equal arcuation in the shape of a spiral of described each fan blade shape.
Rotor core have a central shaft hole 5, in the circumferential edge of described axis hole 5 to the formed annulus of internal diameter circumferential edge of described cast aluminium end ring 2, be uniform-distribution with several and cool off through hole 4 along rotor core 3 axial wind-guidings, the axial cooling wind energy that makes fan blade 1 produce is cooled off by 4 pairs of rotor cores 3 of wind-guiding cooling through hole.
Those of ordinary skill in the art will be appreciated that, above embodiment is used for illustrating the present invention, and be not to be used as limitation of the invention, as long as in connotation scope of the present invention, all will drop in claims scope of the present invention variation, the modification of the above embodiment.
Claims (4)
1. the rotor of efficient, a ultra high efficiency threephase asynchronous, comprise that rotor core, two are in the cast aluminium end ring of rotor core end, some fan blades that is in two cast aluminium end ring outer faces, it is characterized in that: described some fan blades are evenly distributed on the outer face at described cast aluminium end ring two ends, and the equal arcuation in the shape of a spiral of described each fan blade shape.
2. the rotor of a kind of efficient, ultra high efficiency threephase asynchronous according to claim 1, it is characterized in that: described fan blade and cast aluminium end ring form for casting with the cast aluminium of one.
3. the rotor of a kind of efficient, ultra high efficiency threephase asynchronous according to claim 1, it is characterized in that: described fan blade also can be the parts that are fixed on the described cast aluminium end ring outer face.
4. the rotor of a kind of efficient, ultra high efficiency threephase asynchronous according to claim 1, it is characterized in that: described rotor core has central shaft hole, to the formed annulus of internal diameter circumferential edge of described cast aluminium end ring, be uniform-distribution with several in the circumferential edge of described axis hole along the axial wind-guiding cooling through hole of rotor core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102115441A CN102055288A (en) | 2009-10-30 | 2009-10-30 | Rotor of high-efficiency and ultrahigh-efficiency three-phase asynchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009102115441A CN102055288A (en) | 2009-10-30 | 2009-10-30 | Rotor of high-efficiency and ultrahigh-efficiency three-phase asynchronous motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102055288A true CN102055288A (en) | 2011-05-11 |
Family
ID=43959340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009102115441A Pending CN102055288A (en) | 2009-10-30 | 2009-10-30 | Rotor of high-efficiency and ultrahigh-efficiency three-phase asynchronous motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102055288A (en) |
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2009
- 2009-10-30 CN CN2009102115441A patent/CN102055288A/en active Pending
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Application publication date: 20110511 |