CN202309442U - Three-phase alternative-current asynchronous motor - Google Patents
Three-phase alternative-current asynchronous motor Download PDFInfo
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- CN202309442U CN202309442U CN2011204014202U CN201120401420U CN202309442U CN 202309442 U CN202309442 U CN 202309442U CN 2011204014202 U CN2011204014202 U CN 2011204014202U CN 201120401420 U CN201120401420 U CN 201120401420U CN 202309442 U CN202309442 U CN 202309442U
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Abstract
The utility model relates to a three-phase alternative-current asynchronous motor, comprising a shell. A stator and a rotor are arranged in an inner cavity of the shell; the rotor is formed by overlapping a plurality of rotor sheets, and a stator is formed by overlapping a plurality of stator sheets; a stator centre hole is arranged at the centre of each stator sheet; a plurality of radially distributed stator linear grooves are uniformly arranged on the stator sheets; the stator linear grooves are radially and uniformly distributed at the outer edges of the stator center holes; and one ends of the stator linear grooves are aligned to the centers of the stator sheets and are in an opening shape, and the other ends of the stator linear grooves are arc-shaped. The three-phase alternative-current asynchronous motor is characterized in that: four edge groove bodies are uniformly arranged at the outer edges of the stator sheets; a rotator centre hole is arranged at the center of each rotor sheet; inclined grooves and straight grooves are arranged at the edges of the rotor centre holes; and the inclined grooves and the straight grooves are respectively located at the both ends of the rotor centre holes with the same diameter. According to the utility model, the efficiency of a 0.75-kW three-phase alternative-current asynchronous motor is improved by 1-2%.
Description
Technical field
The utility model relates to a kind of three-phase AC asynchronous motor, the phase asynchronous Y2 series motor of especially a kind of 0.75kW.
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, and a kind of three-phase AC asynchronous motor is provided, and can reach energy savings effectively, improves the promising result of motor performance demand.
The technical scheme that provides according to the utility model; Said 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; Center at said rotor punching is provided with rotor bore; Be provided with skewed slot and straight trough at the edge of said rotor bore, said skewed slot and straight trough lay respectively at the two ends of a diameter of rotor bore.
The number of said rotor punching groove is 16,28 or 34.
The aperture of said rotor bore is 26mm, 30mm or 85mm.
Gas length between said stator and the rotor is 0.3mm, 0.9mm or 1.3mm.
Said winding is turned to by lead, and said lead is the setting of individual layer chain type, and the line of said lead directly is 1～3mm, and the number of turn of lead is 19,72,92.
The width of said rotor punching groove upper shed is 1mm, 1.1mm or 1.5mm.
The length ratio of the dual-side of said rotor center bore edges skewed slot is 3: 2 or 4: 3.
The number of said stator slot is 36,42 or 72.
Said edge cell body is a step trough.
The degree of depth of straight trough is 2.5mm or 4mm on the said rotor bore, and width is 4mm or 8mm.
The described 0.75kW three-phase AC asynchronous motor of the utility model 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: the 0.75kW three-phase AC asynchronous motor comprises 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, straight trough 13 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 0.3mm, 0.9mm or 1.3mm; 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 groove 7 in some roads at the edge of said rotor punching, the number of said rotor punching groove 7 is 16,28 or 34, and 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 36,42 or 72, 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; Be provided with rotor bore 8 at the center of said rotor punching; Be provided with skewed slot 11 and straight trough 13 at the edge of said rotor bore 8; Said skewed slot 11 and straight trough 13 lay respectively at the two ends of 8 one diameters of rotor bore; The degree of depth of straight trough 13 is 2.5mm or 4mm on the said rotor bore 8, and width is 4mm or 8mm;
The aperture of said rotor bore 8 is 26mm, 30mm or 85mm, and the width of said rotor punching groove 7 upper sheds is 1mm, 1.1mm or 1.5mm;
Said winding 6 is turned to by lead, and said lead is the setting of individual layer chain type, and the line of said lead directly is 1～3mm, and the number of turn of lead is 19,72,92;
The length ratio of the dual-side of said rotor bore 8 edge skewed slots 11 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. 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); Be provided with rotor bore (8) at the center of said rotor punching; Be provided with skewed slot (11) and straight trough (13) at the edge of said rotor bore (8), said skewed slot (11) and straight trough (13) lay respectively at the two ends of (8) diameters of rotor bore.
2. three-phase AC asynchronous motor as claimed in claim 1 is characterized in that: the number of said rotor punching groove (7) is 16,28 or 34.
3. three-phase AC asynchronous motor as claimed in claim 1 is characterized in that: the aperture of said rotor bore (8) is 26mm, 30mm or 85mm.
4. three-phase AC asynchronous motor as claimed in claim 1 is characterized in that: the gas length between said stator (4) and the rotor (5) is 0.3mm, 0.9mm or 1.3mm.
5. three-phase AC asynchronous motor as claimed in claim 1 is characterized in that: said winding (6) is turned to by lead, and said lead is the setting of individual layer chain type, and the line of said lead directly is 1 ~ 3mm, and the number of turn of lead is 19,72,92.
6. three-phase AC asynchronous motor as claimed in claim 1 is characterized in that: the width of said rotor punching groove (7) upper shed is 1mm, 1.1mm or 1.5mm.
7. three-phase AC asynchronous motor as claimed in claim 1 is characterized in that: the length of the dual-side of said rotor bore (8) edge skewed slot (11) is than being 3:2 or 4:3.
8. three-phase AC asynchronous motor as claimed in claim 1 is characterized in that: the number of said stator slot (10) is 36,42 or 72.
9. three-phase AC asynchronous motor as claimed in claim 1 is characterized in that: said edge cell body (12) is a step trough.
10. three-phase AC asynchronous motor as claimed in claim 1 is characterized in that: the degree of depth that said rotor bore (8) is gone up straight trough (13) is 2.5mm or 4mm, and width is 4mm or 8mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204014202U CN202309442U (en) | 2011-10-20 | 2011-10-20 | Three-phase alternative-current asynchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204014202U CN202309442U (en) | 2011-10-20 | 2011-10-20 | Three-phase alternative-current asynchronous motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202309442U true CN202309442U (en) | 2012-07-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204014202U Expired - Fee Related CN202309442U (en) | 2011-10-20 | 2011-10-20 | Three-phase alternative-current asynchronous motor |
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| CN (1) | CN202309442U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102780345A (en) * | 2012-07-06 | 2012-11-14 | 重庆市乐尔佳机械有限公司 | Ultra-energy-saving 18500W four-pole three-phase asynchronous electric motor |
| CN102780347A (en) * | 2012-07-06 | 2012-11-14 | 重庆市乐尔佳机械有限公司 | Super energy-saving 30kw4 pole three-phase asynchronous motor |
| CN110571997A (en) * | 2019-09-18 | 2019-12-13 | 江苏富丽华通用设备股份有限公司 | Three-phase asynchronous motor stator winding turn number distribution method for fan |
| CN110829663A (en) * | 2019-11-15 | 2020-02-21 | 浙江安美德汽车配件有限公司 | Seventy-two-slot six-phase low-noise stator winding |
-
2011
- 2011-10-20 CN CN2011204014202U patent/CN202309442U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102780345A (en) * | 2012-07-06 | 2012-11-14 | 重庆市乐尔佳机械有限公司 | Ultra-energy-saving 18500W four-pole three-phase asynchronous electric motor |
| CN102780347A (en) * | 2012-07-06 | 2012-11-14 | 重庆市乐尔佳机械有限公司 | Super energy-saving 30kw4 pole three-phase asynchronous motor |
| CN110571997A (en) * | 2019-09-18 | 2019-12-13 | 江苏富丽华通用设备股份有限公司 | Three-phase asynchronous motor stator winding turn number distribution method for fan |
| CN110829663A (en) * | 2019-11-15 | 2020-02-21 | 浙江安美德汽车配件有限公司 | Seventy-two-slot six-phase low-noise stator winding |
| CN110829663B (en) * | 2019-11-15 | 2021-05-14 | 浙江安美德汽车配件有限公司 | Seventy-two-slot six-phase low-noise stator winding |
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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: 20120704 Termination date: 20131020 |