CN102780345A - Ultra-energy-saving 18500W four-pole three-phase asynchronous electric motor - Google Patents
Ultra-energy-saving 18500W four-pole three-phase asynchronous electric motor Download PDFInfo
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- CN102780345A CN102780345A CN2012102332572A CN201210233257A CN102780345A CN 102780345 A CN102780345 A CN 102780345A CN 2012102332572 A CN2012102332572 A CN 2012102332572A CN 201210233257 A CN201210233257 A CN 201210233257A CN 102780345 A CN102780345 A CN 102780345A
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Abstract
The invention relates to an ultra-energy-saving 18500W four-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 optimized and reasonably designed, so the stator winding loss, the rotor winding loss and the iron core loss are greatly reduced, on the premise that the output power is identically 18.5kW, the total loss quantity of the existing similar product is 2126.7W, the total loss quantity of the ultra-energy-saving 18500W four-pole three-phase asynchronous electric motor is only 1402.1W and is reduced by 34.07 percent, and energy sources are greatly saved. Compared with the energy source conversion efficiency of the existing similar product being 89.7 percent, the energy source conversion efficiency of the ultra-energy-saving 18500W four-pole three-phase asynchronous electric motor is 93.0 percent and is improved by 3.3 percent. Meanwhile, because the center line of a stator buckle sheet groove is designed to penetrate through the 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 energy-conservation 18500 watt of 4 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.
18500 watt of 4 pole three phase asynchronous motor overwhelming majority using in the market is the IE1 grade; Its energy conversion efficiency is 89.3%; A small amount of IE2 grade is also arranged, and its energy conversion efficiency has risen to 91.2%, 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 18500 watt of 4 pole three phase asynchronous motor, rotor and iron core, flute profile and size are optimized design; Through its running wastage of comprehensive reduction; Reach and guaranteeing that power output is under the prerequisite of 18.5kW, reduces the input power purpose to a greater extent.
For solving the problems of the technologies described above, the technical scheme that the present invention adopted is a kind of ultra energy-conservation 18500 watt of 4 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 19.2cm, and the length of stator core is 22.0cm, and the flute profile of described stator punching groove is tiltedly to take on round bottomed vessel; Wherein bottom radius is 4.90mm, and groove top is 20.20mm deeply, and groove shoulder height degree is 0.65mm, and groove shoulder breadth degree is 6.50mm; Width of rebate is 3.60mm, and the notch height is 0.80mm, and described stator cramp groove center line passes in the middle of two grooves of stator punching groove, and described rotor diameter is 19.1cm; The rotor internal diameter is 6.0cm, and the length of rotor core is 22.0cm, and the flute profile of described rotor punching groove is a convex slot; Wherein width of rebate is 1.00mm, and the notch height is 0.55mm, and groove shoulder breadth degree is 1.50mm; Groove shoulder height degree is 0.54mm, and the groove top degree of depth is 9.00mm, and last bottom land width is 1.50mm; Following groove shoulder breadth degree is 5.4mm, and following bottom land width is 2.50mm, and following groove depth is 27.50mm.
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 the optimization appropriate design make the stator winding loss have only 388.7W, the rotor winding loss has only 273.5W; Core loss has only 187.7W, comprises stray loss 370.0W, mechanical loss 182.3W; Its energy total losses amount is 1402.1W, and the loss of existing 18500 watt of 4 pole three phase asynchronous motor stator winding has 731.9W, and the rotor winding loss has 474.9W; Core loss has 390.8W; Comprise stray loss 370.0W, mechanical loss 159.1W, its energy total losses amount is 2126.7W; The energy loss amount of wanting required for the present invention has reduced 34.07%, has practiced thrift the energy greatly; Be all in power output under the prerequisite of 18.5kW, the input power that existing like product needs is 20.627kW, and energy conversion efficiency is 89.7%; And input power required for the present invention is merely 19.902kW; Energy conversion efficiency is 93.0%, has improved 3.3%, has improved energy conversion efficiency greatly; Simultaneously,, 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 energy-conservation 18500 watt of 4 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 tops are dark, 63. groove shoulder height degree, 64. groove shoulder breadth degree, 65. width of rebate; 66. the notch height, 71. width of rebate, 72. notch height, 73. groove shoulder breadth degree, 74. groove shoulder height degree; 75. the groove top degree of depth, bottom land width on 76., 77. times groove shoulder breadth degree, 78. times bottom land width, 79. times groove depth.
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 18.5kW4 pole three phase asynchronous motor; Different places is that diameter of stator bore 8 is made 19.2cm, and the flute profile of stator punching groove 6 is made oblique shoulder round bottomed vessel, and wherein bottom radius 61 is made 4.90mm; 20.20mm is made on groove top dark 62, and groove shoulder height degree 63 is made 0.65mm, and groove shoulder breadth degree 64 is made 6.50mm; Width of rebate 65 is made 3.60mm, 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; Be assembled into stator core 4 then, the length of stator core 4 is made 22.0cm; Again rotor diameter 10 is made 19.1cm, rotor internal diameter 11 is made 6.0cm, the flute profile of rotor punching groove 7 is made convex slot; Wherein width of rebate 71 is made 1.00mm, and notch height 72 is made 0.55mm, and groove shoulder breadth degree 73 is made 1.50mm; Groove shoulder height degree 74 is made 0.54mm, and the groove top degree of depth 75 is made 9.00mm, and last bottom land width 76 is made 1.50mm; Following groove shoulder breadth degree 77 is made 5.4mm, and following bottom land width 78 is made 2.50mm, and following groove depth 79 is made 27.50mm; Then the length of rotor core 5 is made 22.0cm; Other part is made the 18.5kW4 pole three phase asynchronous motor according to commonsense method, promptly accomplishes the making of ultra energy-conservation 18500 watt of 4 pole three phase asynchronous motor.
Through check, the present invention compares with existing general Y2-180M type 18.5kW4 pole three phase asynchronous motor, draws contrast difference such as following table.
The architectural difference comparison sheet of the present invention and traditional 18.5kW2 pole three phase asynchronous motor.
The performance difference comparison sheet of the present invention and traditional 18.5kW4 pole three phase asynchronous motor.
From showing and finding out; The present invention compares with existing general Y2-180M type 18.5kW4 pole three phase asynchronous motor; Energy conversion efficiency has brought up to 93.0% from 89.7%; With the highest ranking IE3 of international motor efficiency classification standard the efficiency standard requirement 92.6% of 18.5kW4 pole three phase asynchronous motor is compared, energy conversion efficiency has improved 0.4%.
The input power of wanting required for the present invention has dropped to 19.902kW from existing 21.627kW, and energy total losses amount has dropped to 1402.1W from 2126.7W, has reduced 34.07%, has practiced thrift the energy greatly.
Claims (1)
1. ultra energy-conservation 18500 watt of 4 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 19.2cm, and the length of stator core (4) is 22.0cm;
The flute profile of described stator punching groove (6) is tiltedly to take on round bottomed vessel; Wherein bottom radius (61) is 4.90mm; Groove top dark (62) is 20.20mm, and groove shoulder height degree (63) is 0.65mm, and groove shoulder breadth degree (64) is 6.50mm; Width of rebate (65) is 3.60mm, 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 19.1cm, and rotor internal diameter (11) is 6.0cm, and the length of rotor core (5) is 22.0cm;
The flute profile of described rotor punching groove (7) is a convex slot, and wherein width of rebate (71) is 1.00mm, and notch height (72) is 0.55mm; Groove shoulder breadth degree (73) is 1.50mm, and groove shoulder height degree (74) is 0.54mm, and the groove top degree of depth (75) is 9.00mm; Last bottom land width (76) is 1.50mm; Following groove shoulder breadth degree (77) is 5.4mm, and following bottom land width (78) is 2.50mm, and following groove depth (79) is 27.50mm.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012102332572A CN102780345A (en) | 2012-07-06 | 2012-07-06 | Ultra-energy-saving 18500W four-pole three-phase asynchronous electric motor |
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| CN2012102332572A CN102780345A (en) | 2012-07-06 | 2012-07-06 | Ultra-energy-saving 18500W four-pole three-phase asynchronous electric motor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103595209A (en) * | 2013-12-05 | 2014-02-19 | 重庆市乐尔佳机械有限公司 | Superhigh-energy-efficiency 18500-W four-pole three-phase asynchronous motor |
| CN107359711A (en) * | 2017-08-01 | 2017-11-17 | 江苏唯得电机科技有限公司 | A kind of improved motor rotor punching and stator punching |
Citations (5)
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| CN2400959Y (en) * | 1999-12-07 | 2000-10-11 | 王海远 | Material-saving single-phase AC asynchronous motor |
| CN2433770Y (en) * | 2000-07-21 | 2001-06-06 | 广州电机厂 | YCP2 series three-phase asynchronous motor |
| CN2572649Y (en) * | 2002-10-08 | 2003-09-10 | 青岛天一集团有限公司 | Motor with high starting moment |
| CN101951042A (en) * | 2010-10-20 | 2011-01-19 | 上海特波电机有限公司 | Method for lowering stray loss of motor |
| CN202309442U (en) * | 2011-10-20 | 2012-07-04 | 浙江工业大学 | Three-phase alternative-current asynchronous motor |
-
2012
- 2012-07-06 CN CN2012102332572A patent/CN102780345A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2400959Y (en) * | 1999-12-07 | 2000-10-11 | 王海远 | Material-saving single-phase AC asynchronous motor |
| CN2433770Y (en) * | 2000-07-21 | 2001-06-06 | 广州电机厂 | YCP2 series three-phase asynchronous motor |
| CN2572649Y (en) * | 2002-10-08 | 2003-09-10 | 青岛天一集团有限公司 | Motor with high starting moment |
| CN101951042A (en) * | 2010-10-20 | 2011-01-19 | 上海特波电机有限公司 | Method for lowering stray loss of motor |
| CN202309442U (en) * | 2011-10-20 | 2012-07-04 | 浙江工业大学 | Three-phase alternative-current asynchronous motor |
Non-Patent Citations (1)
| Title |
|---|
| 唐孝镐: "《异步电动机设计手册》", 31 January 2002, 机械工业出版社 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103595209A (en) * | 2013-12-05 | 2014-02-19 | 重庆市乐尔佳机械有限公司 | Superhigh-energy-efficiency 18500-W four-pole three-phase asynchronous motor |
| CN107359711A (en) * | 2017-08-01 | 2017-11-17 | 江苏唯得电机科技有限公司 | A kind of improved motor rotor punching and stator punching |
| WO2019024171A1 (en) * | 2017-08-01 | 2019-02-07 | 江苏唯得电机科技有限公司 | Improved motor rotor lamination and stator lamination |
| CN107359711B (en) * | 2017-08-01 | 2020-06-26 | 江苏恒通发电机制造有限公司 | Improved motor punching sheet |
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Application publication date: 20121114 |