CN103023248A - Alternating-current asynchronous motor structure - Google Patents
Alternating-current asynchronous motor structure Download PDFInfo
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- CN103023248A CN103023248A CN201210587125XA CN201210587125A CN103023248A CN 103023248 A CN103023248 A CN 103023248A CN 201210587125X A CN201210587125X A CN 201210587125XA CN 201210587125 A CN201210587125 A CN 201210587125A CN 103023248 A CN103023248 A CN 103023248A
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Abstract
The invention discloses an alternating-current asynchronous motor structure, and aims to provide a novel rotor and stator structure. A stator comprises 72 stator slots, a rotor comprises 56 or 58 rotor slots, wherein each of the stator slots and the rotor slots has 6 or 8 poles, each stator slot is 5-10mm in slot bottom width, 7-13mm of slot top width, 22-38mm in depth, 2-4mm in slot opening width and 0.8-1.5mm in slot opening depth, each rotor slot is 5.5-10.5mm in slot bottom width, 3-7mm in slot top width b2, 20-40mm in depth, 0.8-1.5mm in slot opening width and 0.8-1.5mm in slot opening depth, slot opening angles of the stator and the rotors range from 20 to 30 degrees, the outer diameter of the stator ranges from 400 to 520mm, the inner diameter of the stator ranges from 285 to 375mm, the inner diameter of the rotor ranges from 85 to 230mm, and the outer diameter of the rotor ranges from 283 to 374mm. The rotor is connected with a rotating shaft via an aluminum bracket. By the aid of the alternating-current asynchronous motor structure, efficiency of a motor is improved, and size and weight of the motor are greatly reduced.
Description
Technical field
The present invention relates to the electric machine structure field, particularly a kind of AC induction motor structure of optimizing motor grooved, structure and size.
Background technology
Traditional AC induction motor, its trench structure is usually designed to narrow and dark bathtub construction, to increase the groove leakage reactance of rotor, reduces starting current, improves startability.Rotor will have the slot slope of one or more stator tooth distances usually, with the harmonic reduction torque, reduces the adverse effect of harmonic torque to starting.The requirement of electric motor starting performance under the power frequency operating mode has been satisfied in above-mentioned design well.Yet the cast-aluminum rotor skewed slot can produce the skewed slot leakage reactance, and narrow and dark bathtub construction has larger groove leakage reactance usually, has virtually just increased the value of total leakage reactance.And larger leakage reactance can reduce the torque performance of motor under high speed, and pure electric automobile and hybrid vehicle can require motor to have certain torque usually under high speed, its rotor is connected direct connection with rotating shaft, because the making material of rotor is generally silicon steel sheet, density is large, so that the weight of motor is heavier; And conventional motors is because will satisfy powerful performance requirement, and motor volume is large, and body is heavy.Thereby traditional asynchronous machine rotor flute profile is necessary to redesign.
Summary of the invention
The objective of the invention is in order to overcome the deficiencies in the prior art, reduce the groove leakage reactance of motor by the trench structure of the rotor optimized and stator, increase the motor breakdown torque; Axial and the radial dimension of rotor and stator reduces motor size; And by optimizing the connected mode of rotor and rotating shaft, when satisfying power of motor, reduce motor weight.
The present invention takes following technical scheme to realize:
The groove number of the stator slot of stator is 72 grooves, and the groove number of rotor is 56 grooves or 58 grooves; The number of poles of rotor and stator slot is identical, is 6 utmost points or 8 utmost points; The width a1 of the bottom land of stator slot is 5mm-10mm, the width a2 on the groove top of stator slot is 7mm-13mm, the degree of depth a3 of stator slot is 22mm-38mm, the width of the notch of stator slot is that a4 is 2mm-4mm, the degree of depth of the notch of stator slot is that a5 is 0.8mm-1.5mm, and the notch angle θ 1 of stator slot is 20 °-30 °; The width b1 of the bottom land of rotor is 5.5mm-10.5mm, the width b2 on the groove top of rotor is 3mm-7mm, the degree of depth b3 of rotor is 20mm-40mm, the width b4 of the notch of rotor is 0.8mm-1.5mm, the degree of depth b5 of the notch of rotor is 0.8mm-1.5mm, and the notch angle θ 2 of rotor is 20 °-30 °.
Gas length δ between stator and the rotor is 0.5mm-1.0mm.
The outer diameter D 1 of stator is 400mm-520mm, and inside diameter D 2 is 285mm-375mm; The outer diameter D 3 of rotor is 283mm-374mm, and the inside diameter D 4 of rotor is 85mm-230mm.
AC induction motor is in the situation of 1000rpm in rated speed, and rated power is 30kW-132kW.
Rotor and stator are the straight channel type structure.
Rotor is connected with motor shaft and is passed through the cast aluminium support and connect and support.
The present invention compared with prior art has significant advantage and beneficial effect, and imbody is as follows:
1, in the situation that torque-speed characteristic remains unchanged, adopt new electromagnetic scheme structure, but the efficient of Effective Raise motor, the efficient added value is about 4%;
2, the external diameter of rotor core increases about 75mm, but axial length reduces 105mm, consider the decrease of end, the axial length of stator can reduce 135mm, greatly saved the space at axial direction, reduced the cumulative volume of motor, larger space is reserved in the installation that can be other drive disk assemblies such as gearbox of drive system;
3, Cao Yong cast aluminium supporting structure supports and links between motor shaft and the rotor, realize with under the power with respect to the conventional AC asynchronous machine, weight reduces greatly.
Description of drawings
Fig. 1 is the trench structure schematic diagram of stator slot of the present invention and rotor;
Fig. 2 is rotor structure schematic diagram of the present invention;
Fig. 3 is stator structure schematic diagram of the present invention;
Fig. 4 is internal structure of motor schematic diagram of the present invention.
Embodiment
Below in conjunction with accompanying drawing the embodiment of the invention is further described; below just exemplary about the description of embodiments of the present invention; the claimed theme that is not meant to limit the present invention; other variations in the claim protection range for embodiment described in the invention also exists all belong to the theme that will protect required for the present invention.
To Fig. 4, wherein, 1 is rotor such as accompanying drawing 1,2 is stator, 3 is the cast aluminium support, and 4 is motor shaft, and 5 is stator slot, 6 is rotor, D1 is stator outer diameter, and D2 is diameter of stator bore, and D3 is rotor diameter, D4 is the rotor internal diameter, a1 is the width of the bottom land of stator slot, and a2 is the fixed width of the groove of stator slot, and a3 is the degree of depth of stator slot, a4 is the width of the notch of stator slot, a5 is the degree of depth of the notch of stator slot, and b1 is the width of the bottom land of rotor, and b2 is the width on the groove top of rotor, b3 is the degree of depth of rotor, b4 is the width of the notch of rotor, and b5 is the degree of depth of the notch of rotor, the gas length between δ stator and the rotor, θ 1 is the notch angle of stator slot, the notch angle of θ 2 rotor.
As shown in Figure 1, the width a1 of the bottom land of stator slot is 5mm-10mm, the width a2 on the groove top of stator slot is 7mm-13mm, the degree of depth a3 of stator slot is 22mm-38mm, the width of the notch of stator slot is that a4 is 2mm-4mm, the degree of depth of the notch of stator slot is that a5 is 0.8mm-1.5mm, and the notch angle θ 1 of stator slot is 20 °-30 °; The width b1 of the bottom land of rotor is 5.5mm-10.5mm, the width b2 on the groove top of rotor is 3mm-7mm, the degree of depth b3 of rotor is 20mm-40mm, the width b4 of the notch of rotor is 0.8mm-1.5mm, the degree of depth b5 of the notch of rotor is 0.8mm-1.5mm, and the notch angle θ 2 of rotor is 20 °-30 °.Gas length δ between stator and the rotor is 0.5mm-1.0mm.
As shown in Figures 2 and 3, the groove number of the stator slot 5 of stator 1 is 72 grooves, and the groove number of the rotor 6 of rotor 2 is 56 grooves or 58 grooves; The outer diameter D 1 of stator 1 is 400mm-520mm, and inside diameter D 2 is 285mm-375mm; The outer diameter D 3 of rotor 2 is 283mm-374mm, and the inside diameter D 4 of rotor 2 is 85mm-230mm.
As shown in Figure 4, rotor 2 is connected with motor shaft passes through cast aluminium support 3 and connects and support.
This AC induction motor is in the situation of 1000rpm in rated speed, and rated power is 30kW-132kW.
For being example embodiment of the present invention; should be understood to is wherein a certain demonstrative example in the protection range of claims of the present invention; have the directiveness effect that those skilled in the art is realized corresponding technical scheme, but not limitation of the invention.
Claims (6)
1. AC induction motor structure, it is characterized in that: the groove number of the stator slot of stator is 72 grooves, the groove number of rotor is 56 grooves or 58 grooves; The number of poles of rotor and stator slot is identical, is 6 utmost points or 8 utmost points; The width a1 of the bottom land of stator slot is 5mm-10mm, the width a2 on the groove top of stator slot is 7mm-13mm, the degree of depth a3 of stator slot is 22mm-38mm, the width of the notch of stator slot is that a4 is 2mm-4mm, the degree of depth of the notch of stator slot is that a5 is 0.8mm-1.5mm, and the notch angle θ 1 of stator slot is 20 °-30 °; The width b1 of the bottom land of rotor is 5.5mm-10.5mm, the width b2 on the groove top of rotor is 3mm-7mm, the degree of depth b3 of rotor is 20mm-40mm, the width b4 of the notch of rotor is 0.8mm-1.5mm, the degree of depth b5 of the notch of rotor is 0.8mm-1.5mm, and the notch angle θ 2 of rotor is 20 °-30 °.
2. AC induction motor structure according to claim 1, it is characterized in that: the gas length δ between stator and the rotor is 0.5mm-1.0mm.
3. AC induction motor structure according to claim 1 is characterized in that: the outer diameter D 1 of described stator is 400mm-520mm, and inside diameter D 2 is 285mm-375mm; The outer diameter D 3 of rotor is 283mm-374mm, and the inside diameter D 4 of rotor is 85mm-230mm.
4. AC induction motor structure according to claim 1, it is characterized in that: described AC induction motor is in the situation of 1000rpm in rated speed, and rated power is 30kW-132kW.
5. AC induction motor structure according to claim 1, it is characterized in that: described rotor and stator are the straight channel type structure.
6. AC induction motor structure according to claim 1 is characterized in that, described rotor is connected with motor shaft and is passed through the cast aluminium support and connect and support.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210587125.XA CN103023248B (en) | 2012-12-28 | 2012-12-28 | A kind of AC induction motor structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210587125.XA CN103023248B (en) | 2012-12-28 | 2012-12-28 | A kind of AC induction motor structure |
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| Publication Number | Publication Date |
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| CN103023248A true CN103023248A (en) | 2013-04-03 |
| CN103023248B CN103023248B (en) | 2017-11-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210587125.XA Expired - Fee Related CN103023248B (en) | 2012-12-28 | 2012-12-28 | A kind of AC induction motor structure |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104037960A (en) * | 2014-06-20 | 2014-09-10 | 合肥恒大江海泵业股份有限公司 | Water-filled submersible motor high in material utilization rate |
| CN106208575A (en) * | 2016-07-26 | 2016-12-07 | 太仓富华特种电机有限公司 | A kind of high efficiency electric for screw compressor |
| CN106685169A (en) * | 2017-02-22 | 2017-05-17 | 上海起阁动力科技有限公司 | Rotor used for asynchronous motor and asynchronous motor |
| CN110460177A (en) * | 2019-09-17 | 2019-11-15 | 镇江中船现代发电设备有限公司 | High starting performance generator unit stator |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201378778Y (en) * | 2009-03-27 | 2010-01-06 | 无锡天宝电机有限公司 | Three-phase asynchronous motor |
| CN201656716U (en) * | 2010-04-21 | 2010-11-24 | 浙江创新电机有限公司 | 14-Pole three-phase asynchronous motor |
| CN102684431A (en) * | 2012-06-08 | 2012-09-19 | 重庆市乐尔佳机械有限公司 | Ultra power efficient 3,000w bipolar three-phase asynchronous motor |
| CN102710076A (en) * | 2012-06-08 | 2012-10-03 | 重庆市乐尔佳机械有限公司 | Super energy-saving 1100W six-pole three-phase asynchronous motor |
| CN203104236U (en) * | 2012-12-28 | 2013-07-31 | 天津市松正电动汽车技术股份有限公司 | An AC asynchronous motor structure |
-
2012
- 2012-12-28 CN CN201210587125.XA patent/CN103023248B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201378778Y (en) * | 2009-03-27 | 2010-01-06 | 无锡天宝电机有限公司 | Three-phase asynchronous motor |
| CN201656716U (en) * | 2010-04-21 | 2010-11-24 | 浙江创新电机有限公司 | 14-Pole three-phase asynchronous motor |
| CN102684431A (en) * | 2012-06-08 | 2012-09-19 | 重庆市乐尔佳机械有限公司 | Ultra power efficient 3,000w bipolar three-phase asynchronous motor |
| CN102710076A (en) * | 2012-06-08 | 2012-10-03 | 重庆市乐尔佳机械有限公司 | Super energy-saving 1100W six-pole three-phase asynchronous motor |
| CN203104236U (en) * | 2012-12-28 | 2013-07-31 | 天津市松正电动汽车技术股份有限公司 | An AC asynchronous motor structure |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104037960A (en) * | 2014-06-20 | 2014-09-10 | 合肥恒大江海泵业股份有限公司 | Water-filled submersible motor high in material utilization rate |
| CN106208575A (en) * | 2016-07-26 | 2016-12-07 | 太仓富华特种电机有限公司 | A kind of high efficiency electric for screw compressor |
| CN106208575B (en) * | 2016-07-26 | 2018-10-26 | 太仓富华特种电机有限公司 | A kind of high efficiency electric for screw compressor |
| CN106685169A (en) * | 2017-02-22 | 2017-05-17 | 上海起阁动力科技有限公司 | Rotor used for asynchronous motor and asynchronous motor |
| CN110460177A (en) * | 2019-09-17 | 2019-11-15 | 镇江中船现代发电设备有限公司 | High starting performance generator unit stator |
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| Publication number | Publication date |
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| CN103023248B (en) | 2017-11-28 |
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Granted publication date: 20171128 Termination date: 20181228 |