CN201478967U - Efficient and energy-saving rare earth permanent magnet synchronous motor - Google Patents

Efficient and energy-saving rare earth permanent magnet synchronous motor Download PDF

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Publication number
CN201478967U
CN201478967U CN2009201858955U CN200920185895U CN201478967U CN 201478967 U CN201478967 U CN 201478967U CN 2009201858955 U CN2009201858955 U CN 2009201858955U CN 200920185895 U CN200920185895 U CN 200920185895U CN 201478967 U CN201478967 U CN 201478967U
Authority
CN
China
Prior art keywords
permanent magnet
rare earth
rotor
synchronous motor
main shaft
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
CN2009201858955U
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Chinese (zh)
Inventor
黄毅
李德红
张拓平
周友初
吕清兰
谢懋兵
刘家伟
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.)
GANZHOU POWER EQUIPMENT CO Ltd
Original Assignee
GANZHOU POWER 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 GANZHOU POWER EQUIPMENT CO Ltd filed Critical GANZHOU POWER EQUIPMENT CO Ltd
Priority to CN2009201858955U priority Critical patent/CN201478967U/en
Application granted granted Critical
Publication of CN201478967U publication Critical patent/CN201478967U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model relates to the motor technology, in particular to an efficient and energy-saving rare earth permanent magnet synchronous motor. The rotor core of the prior rare earth permanent magnet synchronous motor is formed by laminating rotor sheets. The efficient and energy-saving rare earth permanent magnet synchronous motor adopted by the utility model comprises a stator and a rotor; the rotor comprises a main shaft, a permanent magnet, a cast-steel rotor core, an end plate, a slot wedge, a cushion block and a cushion strip; a magnetic shield is connected between the main shaft and the permanent magnet; the permanent magnet is placed in a permanent magnet groove of the cast-steel rotor core and fixed by the slot wedge and the end plate; and the main shaft and the cast-steel rotor core adopt the technical scheme of shrink fits. The utility model has the advantages that the starting torque is large; the overload capacity is strong; and compared with an induction motor with same specifications, the overall efficiency is improved by about 5 percent, the power factor in improved by more than 10 percent, and the average electricity consumption is reduced by 15 percent to 30 percent.

Description

High efficiency energy-saving rare earth permanent-magnet synchronous motor
Technical field
The utility model relates to motor technology, particularly a kind of high efficiency energy-saving rare earth permanent-magnet synchronous motor.
Background technology
The rare-earth permanent-magnet synchronous motor rotor core generally adopts rotor punching to be overrided to form at present.Because adopt the motor of laminated rotor iron core, starting current is bigger, the impact to electrical network during starting is bigger, even can't start, and is also higher to the capacity requirement of power supply unit, and motor overall efficiency, power factor, power savings are still not ideal enough.
The utility model content
The utility model purpose provides that a kind of starting torque is big, overload capacity is strong, compare its overall efficiency with the induction motor of same size improves about 5%, power factor improves more than 10%, average economize on electricity can reach 15%-30%, efficient is height when nominal load not only, and still keeps the high efficiency energy-saving rare earth permanent-magnet synchronous motor of high value when underloading.
Technical solutions of the utility model: a kind of high efficiency energy-saving rare earth permanent-magnet synchronous motor, comprise stator, rotor, rotor comprises main shaft, permanent magnet, cast steel rotor core, end plate, slot wedge, cushion block and filler strip, between main shaft and permanent magnet, be connected every the magnetic lining, permanent magnet is placed in the cast steel rotor core permanent magnet trough, fixed by slot wedge and end plate, main shaft adopts hot jacket to cooperate with the cast steel rotor core;
Rotor magnetic circuit structural adopts built-in tangential formula structure, and the magnetic flux under a pole span is provided by adjacent two magnetic pole parallel connections;
Stator core adopts lamination, and coil adopts the double-deck short distance winding of star connection.
The utility model is the substitute products of Y series motor, and the Y series motor mounting of structure installation dimension and same specification is measure-alike, and it is very convenient to substitute; Can be in order to substitute asynchronous motor than 2 power grades of its big 1 ∽ (or big seat No.); Have efficient height, power factor height, starting torque is big, overload capacity is strong; Compare its overall efficiency with the induction motor of same size and improve about 5%, power factor improves more than 10%, and average economize on electricity can reach 15%-30%; Efficient is height when nominal load not only, and still keeps high value when underloading; Can reduce line loss, save compensation condenser and its renewal and maintenance cost, simultaneously, will there be the electrical network latent capacity about half to excavate out, and be equivalent to the mains supply ability and be doubled, this part electric energy can be used to enlarged reproduction, for the grassroot project power supply, saved the newly-built expense of sending transformation facility, greatly improved the utilance of electrical network, reduced the electrical network expense of increasing capacity, its economic benefit and social benefit are very remarkable.
Description of drawings
Fig. 1 is the utility model rotor portion structural representation.
Fig. 2 is Fig. 1 left view (A-A cuts open and shows).
Fig. 3 is the utility model cast steel rotor core structure schematic diagram.
1 cushion block among the figure, 2 slot wedges, 3 permanent magnets, 4 filler strips, 5 cast steel rotor cores, 6 main shafts, 7 end plates, 8 every the magnetic lining, 9 cast steel pieces, the S permanent magnet South Pole, the N permanent magnet arctic.
Embodiment
The rotor core of the utility model cast steel forms by the cast steel piece with every magnetic lining assembly welding, makes motor under the prerequisite that guarantees bigger starting torque, reaches the purpose that reduces starting current, thereby improves the starting performance of motor.Rotor magnetic circuit structural adopts built-in tangential formula structure, its advantage is that a magnetic flux under the pole span is provided by adjacent two magnetic pole parallel connections, can obtain bigger every utmost point magnetic flux and help improving power of electric motor density and the output-constant operation scope of expansion motor.Rotor constitutes (see figure 1) by main shaft, permanent magnet, rotor core, end plate, slot wedge, cushion block and filler strip etc., main shaft adopts hot jacket to cooperate with rotor core, in order not make in the motor magnetic leakage factor of permanent magnet excessive and cause the permanent magnetic material utilance low excessively, between main shaft and magnetic pole, adopt and reduce leakage field every the magnetic lining, permanent magnet is placed in the rotor core permanent magnet trough, is fixed by slot wedge and end plate.
Stator and conventional induction motor are basic identical, constitute by support, iron core and winding, and the iron loss when stator core adopts lamination to move to reduce motor, coil adopts the double-deck short distance winding of star connection.
The utility model is to replace the traditional electrical excitation and the energy-saving efficient motor made with rare earth permanent magnet, have reliable, volume is little, in light weight, the distinguishing features such as loss is little, efficient and power factor height.

Claims (3)

1. high efficiency energy-saving rare earth permanent-magnet synchronous motor, comprise stator, rotor, it is characterized in that: rotor comprises main shaft, permanent magnet, cast steel rotor core, end plate, slot wedge, cushion block and filler strip, between main shaft and permanent magnet, be connected every the magnetic lining, permanent magnet is placed in the cast steel rotor core permanent magnet trough, fixed by slot wedge and end plate, main shaft adopts hot jacket to cooperate with the cast steel rotor core.
2. according to the described a kind of high efficiency energy-saving rare earth permanent-magnet synchronous motor of claim 1, it is characterized in that: rotor magnetic circuit structural adopts built-in tangential formula structure, and the magnetic flux under a pole span is provided by adjacent two magnetic pole parallel connections.
3. according to claim 1 or 2 described a kind of high efficiency energy-saving rare earth permanent-magnet synchronous motors, it is characterized in that: stator core adopts lamination, and coil adopts the double-deck short distance winding of star connection.
CN2009201858955U 2009-07-18 2009-07-18 Efficient and energy-saving rare earth permanent magnet synchronous motor Expired - Fee Related CN201478967U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009201858955U CN201478967U (en) 2009-07-18 2009-07-18 Efficient and energy-saving rare earth permanent magnet synchronous motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009201858955U CN201478967U (en) 2009-07-18 2009-07-18 Efficient and energy-saving rare earth permanent magnet synchronous motor

Publications (1)

Publication Number Publication Date
CN201478967U true CN201478967U (en) 2010-05-19

Family

ID=42415221

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2009201858955U Expired - Fee Related CN201478967U (en) 2009-07-18 2009-07-18 Efficient and energy-saving rare earth permanent magnet synchronous motor

Country Status (1)

Country Link
CN (1) CN201478967U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102340206A (en) * 2011-09-28 2012-02-01 王子齐 AC (Alternating Current) and DC (Direct Current) integrated permanent-magnet super-energy power motor integrating functions of dragging, frequency converting and speed regulating for vehicles and ships

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102340206A (en) * 2011-09-28 2012-02-01 王子齐 AC (Alternating Current) and DC (Direct Current) integrated permanent-magnet super-energy power motor integrating functions of dragging, frequency converting and speed regulating for vehicles and ships
CN102340206B (en) * 2011-09-28 2013-10-16 王子齐 AC (Alternating Current) and DC (Direct Current) integrated permanent-magnet super-energy power motor integrating functions of dragging, frequency converting and speed regulating for vehicles and ships

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C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20100519

Termination date: 20120718