CN201063467Y - High-power high-voltage solid rotor permanent-magnet motor rotor shaft radial ventilation system - Google Patents

High-power high-voltage solid rotor permanent-magnet motor rotor shaft radial ventilation system Download PDF

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Publication number
CN201063467Y
CN201063467Y CNU200720116304XU CN200720116304U CN201063467Y CN 201063467 Y CN201063467 Y CN 201063467Y CN U200720116304X U CNU200720116304X U CN U200720116304XU CN 200720116304 U CN200720116304 U CN 200720116304U CN 201063467 Y CN201063467 Y CN 201063467Y
Authority
CN
China
Prior art keywords
rotor
ventilation
motor
solid rotor
solid
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.)
Expired - Fee Related
Application number
CNU200720116304XU
Other languages
Chinese (zh)
Inventor
李伟力
陈文彪
金卫东
罗应立
沈稼丰
张晓晨
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.)
Harbin University of Science and Technology
Original Assignee
Harbin University of Science and Technology
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 Harbin University of Science and Technology filed Critical Harbin University of Science and Technology
Priority to CNU200720116304XU priority Critical patent/CN201063467Y/en
Application granted granted Critical
Publication of CN201063467Y publication Critical patent/CN201063467Y/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a rotor shaft radial ventilation system for a high-power high voltage solid rotor permanent magnetic electromotor rotor and relates to a ventilation system of a permanent magnetic motor rotor to solve the problems that the poor ventilation effect of a solid rotor of the prior high voltage permanent magnet motor easily causes that the temperature rise of a solid rotor is too high, and the rotor side permanent magnet can generate irreversible high temperature and excitation-loss. A plurality of ventilation channels are arranged on the inner circle surface of a solid rotor of the utility model; a plurality of rotor ventilation through holes are arranged between the bottom of the ventilation channels and the excircle surface of the solid rotor; a plurality of stator ventilation through holes are arranged between the inner circle surface and the excircle surface of the stator; and centrifugal fans are arranged on a motor axis. Cooling wind produced by the motor rotor ventilation system of the utility model is capable of taking away mass heat generated by the motor, thereby reducing the temperature rise of the motor rotor, prolonging the working life of the permanent magnets or the whole motor, and improving the over load capacity of the motor.

Description

Axial radial ventilation system for high-power high voltage solid rotor permanent magnetic electromotor rotor
Technical field
The utility model relates to a kind of ventilating system of permanent-magnet electric machine rotor.
Background technology
The high-power high voltage induction motor is widely used in occasions such as blower fan, water pump, and is along with the enforcement of national energy policy, more and more higher to this industrial circle requirements of saving energy.The application of normal lamination formula rotor high-tension magneto can improve electric energy, but the starting performance of motor own is relatively poor, and starting current is bigger, and starting torque is less; On the other hand, the rigidity of rotor is relatively poor, and processing technology is more complicated also.Compare with above-mentioned motor, solid rotor high voltage permanent motor not only has good energy-saving effect, and starting performance be improved significantly, but the effect of the ventilating system of existing solid rotor structure is relatively poor, the easy temperature rise of motor is too high, and when the work of motor periodicity nominal load, the temperature rise meeting of rotor body temperature is higher, make the rotor-side permanent magnet produce the non-reversible high-temperature loss of excitation easily, cause motor to damage.
The utility model content
The utility model is relatively poor for the solid rotor ventilation effect that solves existing high-tension magneto, cause the solid rotor temperature rise too high easily, make the rotor-side permanent magnet produce the problem of non-reversible high-temperature loss of excitation, and a kind of axial radial ventilation system for high-power high voltage solid rotor permanent magnetic electromotor rotor is provided.The utility model is by stator 1, solid rotor 2, centrifugal fan 6, motor shaft 7 and form every magnetic spare 8, be socketed on the motor shaft 7 every magnetic spare 8, solid rotor 2 is socketed on magnetic spare 8, air gap 9 is arranged between the outer round surface of the internal circular surfaces of stator 1 and solid rotor 2, on the internal circular surfaces of solid rotor 2, have many ventilation conduits 5, between the outer round surface of the bottom face of ventilation conduit 5 and solid rotor 2, have a plurality of rotor ventilation through holes 3, have a plurality of stator ventilation through holes 4 between the internal circular surfaces of stator 1 and outer round surface, centrifugal fan 6 is arranged on the motor shaft 7.
Operation principle: under the effect of centrifugal fan 6, cooling air enters the inside of solid rotor 2 from many air duct grooves 5, cooling air enters a plurality of rotor ventilation through holes 3 under the centrifugal action that solid rotor 2 rotations produce, enter and also enter a plurality of stator ventilation through holes 4 after the cooling air of rotor ventilation through hole 3 and the cooling air in the air gap 9 converge, thereby reach the effect of cooling solid rotor by action of centrifugal force.
The beneficial effects of the utility model are: the cooling air that the ventilating system of being made up of rotor ventilation hole, stator ventilation hole, air gap and centrifugal fan produces can be taken away the heat that motor produces in a large number, can effectively reduce the temperature rise of motor rotor, prolong the working life of permanent magnet and whole motor, and can strengthen the overload capability of motor.
Description of drawings
Fig. 1 is an overall structure schematic diagram of the present utility model, and Fig. 2 is the A-A cutaway view of Fig. 1.
Embodiment
Embodiment one: referring to Fig. 1, Fig. 2, present embodiment is by stator 1, solid rotor 2, centrifugal fan 6, motor shaft 7 and form every magnetic spare 8, be socketed on the motor shaft 7 every magnetic spare 8, solid rotor 2 is socketed on magnetic spare 8, air gap 9 is arranged between the outer round surface of the internal circular surfaces of stator 1 and solid rotor 2, on the internal circular surfaces of solid rotor 2, have many ventilation conduits 5, between the outer round surface of the bottom face of ventilation conduit 5 and solid rotor 2, have a plurality of rotor ventilation through holes 3, have a plurality of stator ventilation through holes 4 between the internal circular surfaces of stator 1 and outer round surface, centrifugal fan 6 is arranged on the motor shaft 7.Under the effect of centrifugal fan 6, in the ventilation conduit 5 of solid rotor 2, produce cooling air, cooling air in the ventilation conduit 5 passes rotor ventilation through hole 3 under the effect of rotor rotary centrifugal force, enter stator ventilation through hole 4 after converging with cooling air in the air gap 9, thereby reach the effect of cooling solid rotor 2.

Claims (1)

1. axial radial ventilation system for high-power high voltage solid rotor permanent magnetic electromotor rotor, it is by stator (1), solid rotor (2), centrifugal fan (6), motor shaft (7) and form every magnetic spare (8), be socketed on the motor shaft (7) every magnetic spare (8), solid rotor (2) is socketed on magnetic spare (8), air gap (9) is arranged between the outer round surface of the internal circular surfaces of stator (1) and solid rotor (2), it is characterized in that on the internal circular surfaces of solid rotor (2), having many ventilation conduits (5), between the outer round surface of the bottom face of ventilation conduit (5) and solid rotor (2), have a plurality of rotor ventilation through holes (3), have a plurality of stator ventilation through holes (4) between the internal circular surfaces of stator (1) and outer round surface, centrifugal fan (6) is arranged on the motor shaft (7).
CNU200720116304XU 2007-05-30 2007-05-30 High-power high-voltage solid rotor permanent-magnet motor rotor shaft radial ventilation system Expired - Fee Related CN201063467Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU200720116304XU CN201063467Y (en) 2007-05-30 2007-05-30 High-power high-voltage solid rotor permanent-magnet motor rotor shaft radial ventilation system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU200720116304XU CN201063467Y (en) 2007-05-30 2007-05-30 High-power high-voltage solid rotor permanent-magnet motor rotor shaft radial ventilation system

Publications (1)

Publication Number Publication Date
CN201063467Y true CN201063467Y (en) 2008-05-21

Family

ID=39451854

Family Applications (1)

Application Number Title Priority Date Filing Date
CNU200720116304XU Expired - Fee Related CN201063467Y (en) 2007-05-30 2007-05-30 High-power high-voltage solid rotor permanent-magnet motor rotor shaft radial ventilation system

Country Status (1)

Country Link
CN (1) CN201063467Y (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102005839A (en) * 2010-11-30 2011-04-06 东方电气集团东方电机有限公司 Megawatt-grade permanent magnet generator
CN103607088A (en) * 2013-10-30 2014-02-26 六安泰力电机有限责任公司 Three-phase asynchronous motor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102005839A (en) * 2010-11-30 2011-04-06 东方电气集团东方电机有限公司 Megawatt-grade permanent magnet generator
CN102005839B (en) * 2010-11-30 2013-01-23 东方电气集团东方电机有限公司 Megawatt-grade permanent magnet generator
CN103607088A (en) * 2013-10-30 2014-02-26 六安泰力电机有限责任公司 Three-phase asynchronous motor

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
EE01 Entry into force of recordation of patent licensing contract

Assignee: The wind power generation equipment (Daqing) Co., Ltd.

Assignor: Harbin University of Science and Technology

Contract fulfillment period: 2009.4.15 to 2014.4.15

Contract record no.: 2009230000044

Denomination of utility model: Axial radial ventilation system for high-power high voltage solid rotor permanent magnetic electromotor rotor

Granted publication date: 20080521

License type: Exclusive license

Record date: 20091116

LIC Patent licence contract for exploitation submitted for record

Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.4.15 TO 2014.4.15; CHANGE OF CONTRACT

Name of requester: HANWEI WIND POWER EQUIPMENT (DAQING) CO., LTD.

Effective date: 20091116

C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20080521

Termination date: 20120530