CN102780351A - Superefficient 11kW six-pole three-phase asynchronous electric motor - Google Patents
Superefficient 11kW six-pole three-phase asynchronous electric motor Download PDFInfo
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- CN102780351A CN102780351A CN2012102350053A CN201210235005A CN102780351A CN 102780351 A CN102780351 A CN 102780351A CN 2012102350053 A CN2012102350053 A CN 2012102350053A CN 201210235005 A CN201210235005 A CN 201210235005A CN 102780351 A CN102780351 A CN 102780351A
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Abstract
The invention relates to a superefficient 11kW six-pole three-phase asynchronous electric motor, which comprises a stator and a rotor. The inner diameter and the iron core length of the stator, the groove shape and the size of a stator punching sheet groove, the inner diameter, the outer diameter and the iron core length of the rotor, and the groove shape and the size of a rotor punching sheet groove are reasonably designed, so the stator winding loss, the rotor winding loss and the iron core loss are greatly reduced, when the output power is identically 11kW, the existing domestic similar product needs the input power being 12.385kW, the power loss quantity is 1385W, the superefficient 11kW six-pole three-phase asynchronous electric motor only needs the input power being11.936kW, the power loss quantity is only 936W, the power loss quantity is lowered by 32.42 percent, the energy source conversion efficiency is 3.4 percent higher than that of the domestic similar product and is 1.9 percent higher than the highest degrade standard of the international motor energy efficiency. The center line of a stator buckle sheet groove penetrates through a position between two grooves of the stator punching sheet groove, the radial electromagnetic force wave in an air gap is weakened, the electromagnetic vibration is reduced, and the electromagnetic noise is lowered.
Description
Technical field
The present invention relates to a kind of motor, particularly a kind of ultra high efficiency 11kW6 pole three phase asynchronous motor.
Background technology
Motor has had nearly two one-hundred-year histories so far from coming out; Threephase asynchronous also has more than 100 year history; Be widely used in all trades and professions such as each worker, farming, woods, animal husbandry at present, and various fields in life, the essential equipment in commercial production and the people's lives become; But also become the maximum electric equipment of power consumption in production and the life simultaneously, so how to make the energy saving motor environmental protection just become people's important topic in front.China is Asia first power consumption state; Also be the present in the world the most serious developing country of short of electricity, from the annual energy output and the power consumption Jun Ju second place of the world of China in 1992, the energy shortage of China is because of energy waste mostly and utilizes improper institute to cause; China's industrial energy consumption accounts for 70% of total energy consumption at present; Wherein energy consumption of electrical machinery accounts for 60% ~ 70% of industrial total energy consumption, and therefore, the raising of motor energy efficiency level is for China's energy conservation, environmental protection and promote economic development significant; According to investigation, China IE1
(international motor efficiency classification standard)The motor use amount of grade still accounts for more than 90% of total use amount, and the above high-efficiency energy-saving motor usage ratio of IE2 only accounts for 8% of total use amount, can reach the use phoenix feathers and unicorn horns especially of the ultra high efficiency energy-saving motor of IE3 grade; This situation has produced great waste to entire society's resource, is the serious resistance of development low-carbon economy, so the research and development high-efficiency electric motor is one of important measures that improve energy utilization rate, meets the needs of China and development of world economy.
At present general on the China market is Y2 series threephase asynchronous; This motor comprises stator and rotor two large divisions; Its stator core is to be overrided to form by the stator punching that silicon steel sheet is made, and some grooves are arranged in the punching, inlays stator winding in the groove; Be set with the rotor magnetic pole made from silicon steel sheet that is overrided to form by rotor punching in the rotating shaft of rotor, the closed-loop path that has the rotor winding to form on the rotor magnetic pole; After stator fed electric current, the magnetic line of force of generation was through rotor, and produced induced current therein, and the electric current in the short-circuited conducting sleeve hinders the variation of magnetic flux, and the magnetic flux that causes short-circuited conducting sleeve part and short-circuited conducting sleeve not partly to produce has had phase difference, thereby forms rotating magnetic field; After energising starts, the rotor winding because of and magnetic field between exist relative motion induced electromotive force and electric current, there are relative rotation speed in rotating magnetic field and rotor, and produce electromagnetic torque with magnetic field interaction, rotor are rotated, the conversion of realization electric energy and mechanical energy; Under the full load working condition, the efficient of motor is generally higher, usually about 80%; Yet; In case load descends, efficiency of motor just significantly descends thereupon, because be by maximum possible load and the required power of the worst operating mode and fixed during motor selection; Most motors in the load factor of most of running time all 50%～60%, so the efficient during actual motion is all lower.
The 11kW6 pole three phase asynchronous motor overwhelming majority of using in the market is the IE1 grade; Its energy conversion efficiency is 86.4%; A small amount of IE2 grade is also arranged, and its energy conversion efficiency has risen to 88.7%, but its energy-saving effect still can't satisfy the needs of current development low-carbon economy.
Summary of the invention
Technical problem to be solved by this invention provides the method that a kind of stator to the 11kW6 pole three phase asynchronous motor, rotor and iron core, flute profile and size are carried out efficient design; Through comprehensive reduction stator winding, rotor winding and running wastage unshakable in one's determination, reach the purpose that produces the power output of 11kW with input power still less.
For solving the problems of the technologies described above, the technical scheme that the present invention adopted is a kind of ultra high efficiency 11kW6 pole three phase asynchronous motor, comprises stator and rotor, and stator comprises stator core, stator punching groove and stator cramp groove; Rotor comprises rotor core and rotor punching groove, it is characterized in that described diameter of stator bore is 17.7cm, and the length of stator core is 21.5cm, and the flute profile of described stator punching groove is tiltedly to take on round bottomed vessel; Wherein bottom radius is 3.65mm, and groove top is 18.15mm deeply, and groove shoulder height degree is 0.40mm; Groove shoulder breadth degree is 5.198mm, and width of rebate is 3.00mm, and the notch height is 0.80mm; Described stator cramp groove center line passes in the middle of two grooves of stator punching groove, and described rotor diameter is 17.62cm, and the rotor internal diameter is 5.0cm; The length of rotor core is 21.5cm, and the flute profile of described rotor punching groove is the two cage grooves of dome round bottom, and wherein the notch height is 0.70mm; Last groove radius is 3.05mm, and following slot opening is 1.30mm, and following notch height is 3.00mm; Following groove top radius is 2.44mm, and following slot part is 13.00mm deeply, and following bottom radius is 1.69mm.
The invention has the beneficial effects as follows that because the flute profile and the size of internal diameter, external diameter, core length and the rotor punching groove of the flute profile of internal diameter, core length and the stator punching groove of stator and size and rotor have been carried out appropriate design make the stator winding loss have only 411.2W, the rotor winding loss has only 303.0W; Core loss has only 11.1W, comprises stray loss 165.0W, mechanical loss 45.7W; Its power total losses amount is 936.0W, and the loss of existing 11kW6 pole three phase asynchronous motor stator winding has 530.7W, and the rotor winding loss has 347.5W; Core loss has 296.1W; Comprise stray loss 165.0W, mechanical loss 45.7W, its power total losses amount is 1385.1W; The amount of power dissipation of wanting required for the present invention has reduced 32.42%, has practiced thrift the energy greatly; Under the same conditions; Existing like product needs the input power of 12.385kW could produce the power output of 11kW; Energy conversion efficiency is 88.8%, and the present invention only needs the input power of 11.936kW just can produce the power output of 11kW, and energy conversion efficiency has reached 92.2%; Improved 3.4%; Improved energy conversion efficiency greatly, with the highest ranking IE3 of international motor efficiency classification standard the efficiency standard requirement 90.3% of 11kW6 pole three phase asynchronous motor has been compared, energy conversion efficiency of the present invention has surpassed international highest ranking standard 1.9%. Simultaneously, the stator phase current has also dropped to 12.67A from 13.70A, and rotating speed has also been brought up to 973r/min from 970r/min; In addition,, weakened the radial electromagnetic force ripple in the air gap, reduced electric and magnetic oscillation, reduced electromagnetic noise because stator cramp groove center line is designed in the middle of two grooves of stator punching groove, pass.
Description of drawings
Fig. 1 is the sectional structure sketch map of ultra high efficiency 11kW6 pole three phase asynchronous motor of the present invention.
Fig. 2 is a stator laminating structure sketch map of the present invention.
Fig. 3 is a stator punching groove structural representation of the present invention.
Fig. 4 is a rotor punching structural representation of the present invention.
Fig. 5 is a rotor punching groove structural representation of the present invention.
Among the figure: 1. stator, 2. rotor, 3. stator cramp groove, 4. stator core, 5. rotor core, 6. stator punching groove; 7. rotor punching groove, 8. diameter of stator bore, 9. stator cramp groove center line, 10. rotor diameter, 11. rotor internal diameters, 61. bottom radius; 62. groove top is dark, 63. groove shoulder height degree, 64. groove shoulder breadth degree, 65. width of rebate, 66. notch height, 71. notch height; 72. last groove radius, 73. times slot openings, 74. times notch height, 75. times groove top radiuses, 76. times slot part is dark, 77. times bottom radius.
Embodiment
Below in conjunction with embodiment the present invention is described further.
As shown in Figure 1, the present invention includes stator 1 and 2 two major parts of rotor, stock, structure and manufacture method are identical with common 11kW6 pole three phase asynchronous motor; Different places is that diameter of stator bore 8 is made 17.7cm, and the flute profile of stator punching groove 6 is made oblique shoulder round bottomed vessel, and wherein bottom radius 61 is made 3.65mm; 18.15mm is made on groove top dark 62, and groove shoulder height degree 63 is made 0.40mm, and groove shoulder breadth degree 64 is made 5.198mm; Width of rebate 65 is made 3.00mm, and notch height 66 is made 0.80mm, and stator cramp groove center line 9 is passed in the middle of two grooves of stator punching groove 6; Be assembled into stator core 4 then, the length of stator core 4 is made 21.5cm; Again rotor diameter 10 is made 17.62cm, rotor internal diameter 11 is made 5.0cm, the flute profile of rotor punching groove 7 is made the two cage grooves of dome round bottom; Wherein notch height 71 is made 0.70mm, and last groove radius 72 is made 3.05mm, and following slot opening 73 is made 1.30mm; Following notch high 74 is made 3.00mm, and following groove top radius 75 is made 2.44mm, and following slot part dark 76 is made 13.00mm; Following bottom radius 77 is made 1.69mm, then the length of rotor core 5 is made 21.5cm; Other part is made the 11kW6 pole three phase asynchronous motor according to commonsense method, promptly accomplishes the making of ultra high efficiency 11kW6 pole three phase asynchronous motor.
Through check, the present invention compares with existing general Y2-160L type 11kW6 pole three phase asynchronous motor, draws contrast difference such as following table.
The architectural difference comparison sheet of the present invention and traditional 11kW6 pole three phase asynchronous motor.
The performance difference comparison sheet of the present invention and traditional 11kW6 pole three phase asynchronous motor.
From showing and finding out; The present invention compares with existing general Y2-160L type 11kW6 pole three phase asynchronous motor, and the input power of wanting required for the present invention has dropped to 11.936kW from 12.385kW, and power total losses amount has dropped to 936.0W from 1385.1W; Reduced 32.42%, practiced thrift the energy greatly.
The present invention makes the energy conversion efficiency of 11kW6 pole three phase asynchronous motor bring up to 92.2% from 88.8%; Improved 3.4%; Improved energy conversion efficiency greatly; With the highest ranking IE3 of international motor efficiency classification standard the efficiency standard requirement 90.3% of 11kW6 pole three phase asynchronous motor is compared, energy conversion efficiency has exceeded standard 1.9%.
Claims (1)
1. ultra high efficiency 11kW6 pole three phase asynchronous motor; Comprise stator (1) and rotor (2); Stator (1) comprises stator core (4), stator punching groove (6) and stator cramp groove (3), and rotor (2) comprises rotor core (5) and rotor punching groove (7), it is characterized in that:
Described diameter of stator bore (8) is 17.7cm, and the length of stator core (4) is 21.5cm;
The flute profile of described stator punching groove (6) is tiltedly to take on round bottomed vessel; Wherein bottom radius (61) is 3.65mm; Groove top dark (62) is 18.15mm, and groove shoulder height degree (63) is 0.40mm, and groove shoulder breadth degree (64) is 5.198mm; Width of rebate (65) is 3.00mm, and notch height (66) is 0.80mm;
Described stator cramp groove center line (9) passes in the middle of two grooves of stator punching groove (6);
Described rotor diameter (10) is 17.62cm, and rotor internal diameter (11) is 5.0cm, and the length of rotor core (5) is 21.5cm;
The flute profile of described rotor punching groove (7) is the two cage grooves of dome round bottom; Wherein notch height (71) is 0.70mm, and last groove radius (72) is 3.05mm, and following slot opening (73) is 1.30mm; Following notch high (74) is 3.00mm; Following groove top radius (75) is 2.44mm, and following slot part dark (76) is 13.00mm, and following bottom radius (77) is 1.69mm.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102350053A CN102780351A (en) | 2012-07-09 | 2012-07-09 | Superefficient 11kW six-pole three-phase asynchronous electric motor |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012102350053A CN102780351A (en) | 2012-07-09 | 2012-07-09 | Superefficient 11kW six-pole three-phase asynchronous electric motor |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1153418A (en) * | 1995-12-26 | 1997-07-02 | 周曼金 | Multispeed asynchronous motor for light high-efficiency fan pump |
| CN2650378Y (en) * | 2003-09-23 | 2004-10-20 | 戴仁浩 | Efficient two-section single-phase capacitive asynchronous motor |
| CN1556577A (en) * | 2004-01-07 | 2004-12-22 | 杨芳春 | High actuating torque low operating power three phase capacitane type bisquirrel motor |
| CN201541189U (en) * | 2009-09-29 | 2010-08-04 | 泉州泉风电机有限公司 | Single-phase capacitor operation asynchronous motor |
-
2012
- 2012-07-09 CN CN2012102350053A patent/CN102780351A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1153418A (en) * | 1995-12-26 | 1997-07-02 | 周曼金 | Multispeed asynchronous motor for light high-efficiency fan pump |
| CN2650378Y (en) * | 2003-09-23 | 2004-10-20 | 戴仁浩 | Efficient two-section single-phase capacitive asynchronous motor |
| CN1556577A (en) * | 2004-01-07 | 2004-12-22 | 杨芳春 | High actuating torque low operating power three phase capacitane type bisquirrel motor |
| CN201541189U (en) * | 2009-09-29 | 2010-08-04 | 泉州泉风电机有限公司 | Single-phase capacitor operation asynchronous motor |
Non-Patent Citations (2)
| Title |
|---|
| 唐孝镐: "《异步电动机设计手册》", 31 December 2001 * |
| 陈世坤: "《电机设计 下册》", 30 November 1982, 机械工业出版社 * |
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Application publication date: 20121114 |