CN104218736A - Self-ventilation asynchronous motor with large induced draught fan - Google Patents

Self-ventilation asynchronous motor with large induced draught fan Download PDF

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Publication number
CN104218736A
CN104218736A CN201410528980.2A CN201410528980A CN104218736A CN 104218736 A CN104218736 A CN 104218736A CN 201410528980 A CN201410528980 A CN 201410528980A CN 104218736 A CN104218736 A CN 104218736A
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CN
China
Prior art keywords
rotor
ventilation
self
stator
air
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201410528980.2A
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Chinese (zh)
Inventor
吕杰
尚前博
李宏
马红军
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CRRC Yongji Electric Co Ltd
Original Assignee
Yongji Xinshisu Electric Equipment Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Yongji Xinshisu Electric Equipment Co Ltd filed Critical Yongji Xinshisu Electric Equipment Co Ltd
Priority to CN201410528980.2A priority Critical patent/CN104218736A/en
Publication of CN104218736A publication Critical patent/CN104218736A/en
Pending legal-status Critical Current

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Abstract

The invention relates to a self-ventilation motor, in particular to a self-ventilation asynchronous motor with a large induced draught fan, and solves the technical problems that an existing self-ventilation motor is small in air volume and foreign matters such as rain, snow and gravel easily enter the existing self-ventilation motor. The self-ventilation asynchronous motor with the large induced draught fan comprises a stator belt base and a rotor, the rotor is arranged in the middle of a stator core of the stator belt base through a horizontal rotating shaft, an end cover is arranged in the rear of the stator belt base, a plurality of vent holes are formed between the tooth portion of the rotor and the horizontal rotating shaft, a centrifugal fan coaxial with the rotor is mounted behind the rotor, an air inlet is formed in a stator belt base top plate on the front upper portion of the rotor, a dust filtering device is mounted at the air inlet, a plurality of air outlets directly facing fan blades of the centrifugal fan are formed in the end cover, and a dust cover is arranged on the air outlets. The self-ventilation asynchronous motor is simple in structure, easy to assemble and maintain, large in air volume and fine in cooling effect, and the fan blades of the fan are large in sectional area.

Description

A kind of self-ventilation asynchronous machine of big fan air-draft-type
Technical field
The present invention relates to self-ventilated machine, be specially a kind of self-ventilated machine of big fan air-draft-type.
Background technology
At present, thus the advantage that self-ventilation asynchronous machine is simple and easy to safeguard with its making is subject to motor user's favor has obtained generally application.
Existing self-ventilated machine mostly is centrifugal fan from motor shaft to outside air draught, by electric fan, cooling air is blown into motor internal, by ventilation hole and air gap, heat is taken out of from support air outlet.During use, because air inlet is arranged on motor axial end portion border, nearer apart from ground, the foreign matters such as sleet and sandstone are easily inhaled into motor, easily cause the faults such as the aging and ground connection of electrical machine insulation; In addition, electric fan is subject to electric machine structure spatial limitation, and sectional area is less, causes cooling air quantity less, and cooling effect is slightly poor.
Existing self-ventilated machine generally comprises the stator band support that an inside is cavity structure, and stator is positioned at base inner incorporating mill seat and is made of one, and rotor runs through rotating shaft before and after stator band support by level and is located in the middle of stator core; The rear portion of stator band support, for the opening of generally making easy to assembly, is fixed with detachable end on opening, can carry out like this Installation and Debugging of stator band base inner equipment; Between stator core and rotor core, be provided with air gap and ventilation slot for ventilating.
Summary of the invention
The present invention is little for solving existing self-ventilated machine air quantity, and the technical problem that easily enters the foreign matters such as sleet and sandstone provides a kind of self-ventilated machine of big fan air-draft-type.
The present invention realizes by the following technical solutions: a kind of self-ventilation asynchronous machine of big fan air-draft-type, comprises a stator band support, by horizontal rotating shaft, is located at the rotor in the middle of the stator core of stator band support; The rear portion of stator band support is provided with end cap: the position of rotor between its tooth portion and horizontal rotating shaft is provided with some ventilation holes, and the centrifugal fan with rotor coaxial has been installed at the rear of rotor; On the stator band seat top plate on top, rotor the place ahead, have air inlet, at air inlet, place is provided with dust filtration device; The flabellum that end cap is provided with a plurality of and centrifugal fan over against air outlet, air outlet is provided with protective cover.
Centrifugal fan is fixedly mounted on rotor, when motor is connected three-phase alternating current, fan is along with rotor rotates together, in stator band base inner, form local decompression, air is entered by the air inlet that is positioned at top, support the place ahead, through the ventilation hole in rotor core and along the central shaft of flabellum to entering flabellum, and radially flowing out and flowing out whole support by the air outlet of opening end cap from flabellum, form cooling air duct, effectively realized the ventilation of motor internal.Ventilation hole is convenient to the cooling-air circulation entering from motor air inlet.Dust filtration device on air inlet is the small impurities in filtered air effectively, and dust filtration device can be used existing device, as dust cover and other dust filtration equipment.
Self-ventilation asynchronous machine of the present invention is simple in structure, easy I& M, and electric fan sectional area is larger, and air quantity is larger, and cooling effect is better; Its air inlet can be arranged on overhead position far away of motor, and protective is good; Solve existing self-ventilated machine air quantity little, the problem that easily enters the foreign matters such as sleet and sandstone, can be widely used in self-ventilated machine structure.
Accompanying drawing explanation
Fig. 1 structural representation of the present invention.
1-stator band support, 2-rotor, 3-centrifugal fan, 4-dust filtration device, 5-end cap, 6-protective cover, 7-horizontal rotating shaft.
Embodiment
A self-ventilation asynchronous machine for big fan air-draft-type, comprises a stator band support 1, by horizontal rotating shaft 7, is located at the rotor 2 in the middle of the stator core of stator band support 1; The rear portion of stator band support 1 is provided with end cap 5; The position of rotor 2 between its tooth portion and horizontal rotating shaft 7 is provided with some ventilation holes, and the centrifugal fan 3 coaxial with rotor 2 installed at the rear of rotor 2; On stator band support 1 top board on rotor 2 tops, the place ahead, have air inlet, at air inlet place, dust filtration device 4 is installed; The flabellum that end cap 5 is provided with a plurality of and centrifugal fan 3 over against air outlet, air outlet is provided with protective cover 6.
Between stator core in stator band support 1 and rotor core, have air gap, the ventilation grooved arranging on stator and rotor iron core is recoil pit; Recoil pit can increase the flow area of cooling air.
In Fig. 1, the right side is front, Zuo Weihou.Air inlet is positioned at the top in rotor the place ahead, wind after dust filtration device filters is introduced into the front cavity of support like this, through the ventilation slot on ventilation hole, rotor and stator in rotor core and the air gap between rotor and stator, through rotor and stator, arrive the rear cavity of support again, and under the effect of centrifugal fan along fan blade radially the air outlet on end cap flow out support, realize the ventilation of base inner rotor and stator.Centrifugal fan diameter is almost the same large with whole stator band support intracavity diameter, and intake can reach with very large; Because fan does not need to be arranged on air inlet place, so the position of air inlet can arrange relatively flexibly; In figure, air inlet is located at the top of support, has avoided to greatest extent entering of the impurity such as sand.On dust filtration device 4, be provided with mounting flange, by installing hole on flange, use bolt that dust filtration device is arranged on stator.

Claims (2)

1. a self-ventilation asynchronous machine for big fan air-draft-type, comprises a stator band support (1), by horizontal rotating shaft (7), is located at the rotor (2) in the middle of the stator core of stator band support (1); The rear portion of stator band support (1) is provided with end cap (5); It is characterized in that: the position of rotor (2) between its tooth portion and horizontal rotating shaft (7) is provided with some ventilation holes, and the centrifugal fan (3) coaxial with rotor (2) installed at the rear of rotor (2); On stator band support (1) top board on rotor (2) top, the place ahead, have air inlet, dust filtration device (4) is installed at air inlet place; The flabellum that end cap (5) is provided with a plurality of and centrifugal fan (3) over against air outlet, air outlet is provided with protective cover (6).
2. the self-ventilation asynchronous machine of a kind of big fan air-draft-type as claimed in claim 1, is characterized in that, between the stator core in stator band support (1) and rotor core, has air gap, and the ventilation grooved arranging on stator and rotor iron core is recoil pit.
CN201410528980.2A 2014-10-10 2014-10-10 Self-ventilation asynchronous motor with large induced draught fan Pending CN104218736A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410528980.2A CN104218736A (en) 2014-10-10 2014-10-10 Self-ventilation asynchronous motor with large induced draught fan

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410528980.2A CN104218736A (en) 2014-10-10 2014-10-10 Self-ventilation asynchronous motor with large induced draught fan

Publications (1)

Publication Number Publication Date
CN104218736A true CN104218736A (en) 2014-12-17

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Family Applications (1)

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CN201410528980.2A Pending CN104218736A (en) 2014-10-10 2014-10-10 Self-ventilation asynchronous motor with large induced draught fan

Country Status (1)

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CN (1) CN104218736A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105553181A (en) * 2015-12-19 2016-05-04 江西泰豪军工集团有限公司 Non-impact outlet angle air-outlet structure on front end cover of electric generator
CN105703539A (en) * 2016-04-18 2016-06-22 中车永济电机有限公司 Self-ventilation traction motor
CN106385136A (en) * 2016-10-08 2017-02-08 上海川也电机有限公司 Suction fan cooled open motor
CN108155757A (en) * 2018-02-07 2018-06-12 河南宝天机电科技有限公司 A kind of ventilated type motor
CN109038922A (en) * 2018-08-17 2018-12-18 中车株洲电机有限公司 A kind of self-ventilation motor and its motor casing

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07115742A (en) * 1993-10-14 1995-05-02 Matsushita Electric Ind Co Ltd Induction machine, manufacture of induction-machine rotor and cooling method of induction-machine rotor
CN1290420A (en) * 1998-02-13 2001-04-04 株式会社日立制作所 Open type electric motor for driving vehicle
JP2003274609A (en) * 2002-03-13 2003-09-26 Toshiba Corp Vehicle driving motor
CN201250801Y (en) * 2008-09-18 2009-06-03 中国北车集团大同电力机车有限责任公司 Centrifugal ventilator for engines
CN103166340A (en) * 2011-12-15 2013-06-19 株式会社日立制作所 Rotating electric machine, rail vehicle and electric vehicle equipped therewith
CN103490548A (en) * 2013-09-18 2014-01-01 南车株洲电力机车研究所有限公司 Traction motor
CN204089479U (en) * 2014-10-10 2015-01-07 永济新时速电机电器有限责任公司 A kind of self-ventilation asynchronous machine of big fan air-draft-type

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07115742A (en) * 1993-10-14 1995-05-02 Matsushita Electric Ind Co Ltd Induction machine, manufacture of induction-machine rotor and cooling method of induction-machine rotor
CN1290420A (en) * 1998-02-13 2001-04-04 株式会社日立制作所 Open type electric motor for driving vehicle
JP2003274609A (en) * 2002-03-13 2003-09-26 Toshiba Corp Vehicle driving motor
CN201250801Y (en) * 2008-09-18 2009-06-03 中国北车集团大同电力机车有限责任公司 Centrifugal ventilator for engines
CN103166340A (en) * 2011-12-15 2013-06-19 株式会社日立制作所 Rotating electric machine, rail vehicle and electric vehicle equipped therewith
CN103490548A (en) * 2013-09-18 2014-01-01 南车株洲电力机车研究所有限公司 Traction motor
CN204089479U (en) * 2014-10-10 2015-01-07 永济新时速电机电器有限责任公司 A kind of self-ventilation asynchronous machine of big fan air-draft-type

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105553181A (en) * 2015-12-19 2016-05-04 江西泰豪军工集团有限公司 Non-impact outlet angle air-outlet structure on front end cover of electric generator
CN105703539A (en) * 2016-04-18 2016-06-22 中车永济电机有限公司 Self-ventilation traction motor
CN106385136A (en) * 2016-10-08 2017-02-08 上海川也电机有限公司 Suction fan cooled open motor
CN108155757A (en) * 2018-02-07 2018-06-12 河南宝天机电科技有限公司 A kind of ventilated type motor
CN109038922A (en) * 2018-08-17 2018-12-18 中车株洲电机有限公司 A kind of self-ventilation motor and its motor casing
WO2020034254A1 (en) * 2018-08-17 2020-02-20 中车株洲电机有限公司 Self-ventilating motor and motor case thereof

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Application publication date: 20141217

RJ01 Rejection of invention patent application after publication