CN202334213U - Ultra-efficient low power three-phase AC asynchronous motor - Google Patents
Ultra-efficient low power three-phase AC asynchronous motor Download PDFInfo
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- CN202334213U CN202334213U CN2011203796429U CN201120379642U CN202334213U CN 202334213 U CN202334213 U CN 202334213U CN 2011203796429 U CN2011203796429 U CN 2011203796429U CN 201120379642 U CN201120379642 U CN 201120379642U CN 202334213 U CN202334213 U CN 202334213U
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Abstract
The utility model relates to an ultra-efficient low power three-phase AC asynchronous motor, which comprises an enclosure, wherein a stator and a rotor arranged in the stator are arranged in the inner cavity of the enclosure, a winding is wound on the stator, the rotor is composed of a plurality of laminated rotor punched slices, and the stator is composed of a plurality of laminated stator punched slices; a plurality of rotor punched slice grooves uniformly distributed along the radial direction are arranged on the edges of the rotor punched slices, stator center holes are arranged at the centers of the stator punched slices, a plurality of stator slots distributed along the radial direction are uniformly arranged on the stator punched slices, the stator slots are uniformly distributed on the outer edges of the stator center holes in a radial shape, one of the ends of the stator slots is appointed to the centers of the stator punched slices and is in an opening shape, and the other ends of the stator slots are arched, the ultra-efficient low power three-phase AC asynchronous motor is characterized in that four edge grooves are uniformly arranged on the outer edges of the stator punched slices. The efficiency of the ultra-efficient low power three-phase AC asynchronous motor provided in the utility model is greatly improved by 1-2%.
Description
Technical field
The utility model relates to a kind of extra-high-speed and imitates the small-power three-phase AC asynchronous motor, the phase asynchronous Y2 series motor that especially a kind of 0.55/0.75kW is general.
Background technology
The middle low power alternating current motor that has a large capacity and a wide range; The electric energy that it consumed accounts for 60～70% of national generating capacity; Be maximum big power consumer, so the energy-conservation of middle low power motor being the severe problem that electromechanics trade faces, also is the new opportunity and the new challenge of electromechanics trade development.If on average improve one percentage point to the efficient of middle-size and small-size motor, 1 year more than 20 hundred million kWh that can economize on electricity.This shows that the energy-saving potential of motor is huge, the energy efficiency that improves middle-size and small-size motor is an energy-conservation importance of industrial terminal equipment.The about 400GW of China's electric motor total capacity, wherein nearly 80% is middle-size and small-size, year power consumption 660TWh.Middle-size and small-size motor average efficiency 87%, international most advanced level are 92%, and Chinese middle-size and small-size motor electricity saving potentiality are about 12TWh.From energy savings, protection environment, high-efficiency electric motor is present international trend, and relevant rules have been issued in the U.S., Canada, Europe in succession.Europe is according to the running time of motor, and the CEMEP standard of formulation is divided into eff1 (the highest), eff2, eff3 (minimum) Three Estate with efficient, in the period of 2003-2006, implements step by step.The IEC 60034-30 standard of up-to-date appearance is divided into IE1 (corresponding eff2), IE2 (corresponding eff1), IE3, four grades of IE4 (the highest) with electric efficiency.China promises to undertake from July 1st, 2011 execution IE2 and above standard.Along with China joined WTO, the great competition pressure and the challenge of the international community that China's electromechanics trade is faced increasingly sharpen.From international and domestic development trend; Promoting Chinese high-efficiency electric motor is necessary; This also is the requirement of production development, makes China's motor product catch up with the International Development trend, also helps advancing simultaneously the needs of technical progress of industry and products export.Originally used three-phase y series motor is through improve several times, and efficient has had certain raising, but compares with world level; Still have certain gap; Through adopting novel motor optimized Algorithm, the punching of appropriate design motor stator and rotor, motor coil and the air gap size is optimized; The threephase motor of designing can reach energy savings, improves the promising result of motor performance.
Summary of the invention
The purpose of the utility model is to overcome the deficiency that exists in the prior art, provides a kind of extra-high-speed to imitate the small-power three-phase AC asynchronous motor, can reach energy savings effectively, improves the promising result of motor performance demand.
The technical scheme that provides according to the utility model; Said extra-high-speed is imitated the small-power three-phase AC asynchronous motor; Comprise casing and be located at front end housing and the rear end cap on the casing front and back end, in the inner chamber of said casing, be provided with stator and be arranged on the rotor that is complementary with stator in the stator, be wound with winding on the stator; Rotor is cascaded by the multi-disc rotor punching, and stator is cascaded by the multi-disc stator punching; Be provided with the radially equally distributed rotor punching groove in some roads at the edge of said rotor punching, an end of said rotor punching groove points to the center of rotor punching, and the other end is opening-like; Be provided with the stator center hole at the center of said stator punching; On said stator punching, evenly be provided with some radially-arranged stator slots; Said stator slot is distributed in the outer rim in stator center hole radially equably; One end of said stator slot points to the center of stator punching, and opening-like, and the other end of stator slot is an arc; It is characterized in that: the outer rim at said stator punching evenly is provided with four edge cell bodies.
The number of said rotor punching groove is 16,22 or 28.
Center at said rotor punching is provided with rotor bore, and the aperture of said rotor bore is 17mm, 24mm or 26mm.
Gas length between said stator and the rotor is 0.25mm, 0.3mm or 0.4mm.
Said winding is turned to by lead, and said lead is that individual layer is arranged in a crossed manner, and the line of said lead directly is 0.5～1mm, and the number of turn of lead is 90,99 or 118.
The width of said rotor punching groove upper shed is 0.8mm, 1mm or 1.1mm.
Edge at said rotor bore is provided with skewed slot, and the length ratio of said skewed slot dual-side is 3: 2 or 4: 3.
The number of said stator slot is 18,24 or 36.
Said edge cell body is a step trough.
Said winding is arranged in the stator slot.
The described extra-high-speed of the utility model is imitated small-power three-phase AC asynchronous motor efficient has had improvement, has improved 1～2%; Power factor has improved slightly about 0.1～0.2; Starting torque, breakdown torque are improved.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Fig. 2 is the structural representation of the rotor punching of the utility model.
Fig. 3 is the structural representation of the stator punching of the utility model.
Fig. 4 is the structural representation of the winding of the utility model.
Embodiment
Below in conjunction with concrete accompanying drawing the utility model is described further.
Like Fig. 1～shown in Figure 4: extra-high-speed is imitated the small-power three-phase AC asynchronous motor and is comprised casing 1, front end housing 2, rear end cap 3, stator 4, rotor 5, winding 6, rotor punching groove 7, rotor bore 8, stator center hole 9, stator slot 10, skewed slot 11, edge cell body 12 etc.
The utility model comprises casing 1 and the front end housing 2 and rear end cap 3 be located on casing 1 front and back end; In the inner chamber of said casing 1, be provided with stator 4 and be arranged on the rotor 5 that is complementary with stator 4 in the stator 4; Gas length between said stator 4 and the rotor 5 is 0.25mm, 0.3mm or 0.4mm, is wound with winding 6 on the stator 4, and said winding 6 is arranged in the stator slot 1; Rotor 5 is cascaded by the multi-disc rotor punching, and stator 4 is cascaded by the multi-disc stator punching; Be provided with the radially equally distributed rotor punching groove 7 in some roads at the edge of said rotor punching, an end of said rotor punching groove 7 points to the center of rotor punching, and the other end is opening-like; Be provided with stator center hole 9 at the center of said stator punching; On said stator punching, evenly be provided with some radially-arranged stator slots 10; The number of said stator slot 10 is 18,24 or 36, and said stator slot 10 is distributed in the outer rim in stator center hole 9 radially equably, and an end of said stator slot 10 points to the center of stator punching; And opening-like, the other end of stator slot 10 is an arc; Outer rim at said stator punching evenly is provided with four edge cell bodies 12, and said edge cell body 12 is a step trough, and the degree of depth of step trough ground floor ladder is 2.5mm, and width is 14mm, and the degree of depth of second layer ladder is 2mm, and width is 2.5mm;
The number of said rotor punching groove 7 is 16,22 or 28, is provided with rotor bore 8 at the center of said rotor punching, and the aperture of said rotor bore 8 is 17mm, 24mm or 26mm, and the width of said rotor punching groove 7 upper sheds is 0.8mm, 1mm or 1.1mm;
Said winding 6 is turned to by lead, and said lead is that individual layer is arranged in a crossed manner, and the line of said lead directly is 0.5～1mm, and the number of turn of lead is 90,99 or 118.
Be provided with skewed slot 11 at the edge of said rotor bore 8, the length ratio of said skewed slot 11 dual-sides is 3: 2 or 4: 3.
The performance parameter contrast of the motor in the middle of described three-phase AC asynchronous motor of the utility model and the prior art is as shown in table 1.
Table 1
Can find out from the result of table 1: this practical efficient has had improvement, has improved 1～2%; Power factor has improved slightly about 0.1～0.2; Starting torque, breakdown torque are improved.
What the rotor material aspect of prior art all adopted is DR510-50 type hot-rolled steel, and the utility model adopts cold-rolled steel DW465-50.Hot-rolled steel is through development century-old on the electrical sheet industry, and its manufacture level and magnetic property improve a lot, but the energy of consumption when producing except it, outside the pollution of generation, its performance quality significantly is worse than cold rolling electric.Cold-rolled steel is being much better than hot-rolled steel aspect dimensional accuracy, the surface quality.Aspect magnetic property, even under the situation of same iron loss, the magnetic strength of cold-rolled steel still exceeds 0.14～0.15T than hot-rolled steel; This makes the required magnetic field intensity of work in unity point obviously descend; Be able to reduce coil turn, reduce copper loss, under same iron loss situation; The exciting curent of cold-rolled steel magnetic strength is little, and it is high that efficient is also wanted accordingly.In addition, the production technology of cold-rolled steel also is better than hot-rolled steel.The same plate of hot-rolled steel is poor≤50 μ m stacking factor>=95%, and the same plate of cold-rolled steel poor≤15 μ m, stacking factor>=98%.
Claims (10)
1. an extra-high-speed is imitated the small-power three-phase AC asynchronous motor; Comprise casing (1) and be located at front end housing (2) and the rear end cap (3) on casing (1) front and back end; In the inner chamber of said casing (1), be provided with stator (4) and be arranged on the rotor (5) that is complementary with stator (4) in the stator (4); Be wound with winding (6) on the stator (4), rotor (5) is cascaded by the multi-disc rotor punching, and stator (4) is cascaded by the multi-disc stator punching; Be provided with the radially equally distributed rotor punching grooves in some roads (7) at the edge of said rotor punching, an end of said rotor punching groove (7) points to the center of rotor punching, and the other end is opening-like; Be provided with stator center hole (9) at the center of said stator punching; On said stator punching, evenly be provided with some radially-arranged stator slots (10); Said stator slot (10) is distributed in the outer rim of stator center hole (9) radially equably; One end of said stator slot (10) points to the center of stator punching, and opening-like, and the other end of stator slot (10) is an arc; It is characterized in that: the outer rim at said stator punching evenly is provided with four edge cell bodies (12).
2. extra-high-speed as claimed in claim 1 is imitated the small-power three-phase AC asynchronous motor, and it is characterized in that: the number of said rotor punching groove (7) is 16,22 or 28.
3. extra-high-speed as claimed in claim 1 is imitated the small-power three-phase AC asynchronous motor, and it is characterized in that: be provided with rotor bore (8) at the center of said rotor punching, the aperture of said rotor bore (8) is 17mm, 24mm or 26mm.
4. extra-high-speed as claimed in claim 1 is imitated the small-power three-phase AC asynchronous motor, and it is characterized in that: the gas length between said stator (4) and the rotor (5) is 0.25mm, 0.3mm or 0.4mm.
5. extra-high-speed as claimed in claim 1 is imitated the small-power three-phase AC asynchronous motor; It is characterized in that: said winding (6) is turned to by lead; Said lead is that individual layer is arranged in a crossed manner, and the line of said lead directly is 0.5 ~ 1mm, and the number of turn of lead is 90,99 or 118.
6. extra-high-speed as claimed in claim 1 is imitated the small-power three-phase AC asynchronous motor, and it is characterized in that: the width of said rotor punching groove (7) upper shed is 0.8mm, 1mm or 1.1mm.
7. extra-high-speed as claimed in claim 3 is imitated the small-power three-phase AC asynchronous motor, it is characterized in that: be provided with skewed slot (11) at the edge of said rotor bore (8), the length of said skewed slot (11) dual-side is than being 3:2 or 4:3.
8. extra-high-speed as claimed in claim 1 is imitated the small-power three-phase AC asynchronous motor, and it is characterized in that: the number of said stator slot (10) is 18,24 or 36.
9. extra-high-speed as claimed in claim 1 is imitated the small-power three-phase AC asynchronous motor, and it is characterized in that: said edge cell body (12) is a step trough.
10. extra-high-speed as claimed in claim 1 is imitated the small-power three-phase AC asynchronous motor, and it is characterized in that: said winding (6) is arranged in the stator slot (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203796429U CN202334213U (en) | 2011-09-28 | 2011-09-28 | Ultra-efficient low power three-phase AC asynchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203796429U CN202334213U (en) | 2011-09-28 | 2011-09-28 | Ultra-efficient low power three-phase AC asynchronous motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202334213U true CN202334213U (en) | 2012-07-11 |
Family
ID=46446178
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203796429U Expired - Fee Related CN202334213U (en) | 2011-09-28 | 2011-09-28 | Ultra-efficient low power three-phase AC asynchronous motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202334213U (en) |
-
2011
- 2011-09-28 CN CN2011203796429U patent/CN202334213U/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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20120928 |