CN104037965A - Rotor structure of permanent magnet synchronous motor - Google Patents

Rotor structure of permanent magnet synchronous motor Download PDF

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Publication number
CN104037965A
CN104037965A CN201410276032.4A CN201410276032A CN104037965A CN 104037965 A CN104037965 A CN 104037965A CN 201410276032 A CN201410276032 A CN 201410276032A CN 104037965 A CN104037965 A CN 104037965A
Authority
CN
China
Prior art keywords
permanent magnet
synchronous motor
groove
rotor structure
magnet synchronous
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
CN201410276032.4A
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Chinese (zh)
Inventor
李骏
候国安
张焱平
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.)
Zhejiang Xichuan Electrical Technology Co Ltd
Original Assignee
Zhejiang Xichuan Electrical Technology 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.)
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Publication date
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Application filed by Zhejiang Xichuan Electrical Technology Co Ltd filed Critical Zhejiang Xichuan Electrical Technology Co Ltd
Priority to CN201410276032.4A priority Critical patent/CN104037965A/en
Publication of CN104037965A publication Critical patent/CN104037965A/en
Pending legal-status Critical Current

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Abstract

The invention relates to a rotor structure of a motor, in particular to a rotor structure of a permanent magnet synchronous motor. The rotor structure of the permanent magnet synchronous motor comprises a rotation shaft, a rotor punching slice and a permanent magnet, wherein a circle of cast aluminum grooves and a circle of permanent magnet grooves are respectively and evenly formed in the radial direction of the rotor punching slice at intervals from outside to inside, one end of each permanent magnet groove, close to each cast aluminum groove, is provided with a first air groove, and the other end of each permanent magnet groove, close to the rotation shaft, is provided with a second air groove. Compared with a normal rotor structure, reasonable magnetism isolation grooves are added in the rotor structure of the permanent magnet synchronous motor, not only can magnetic flux leakage of the permanent magnet synchronous motor be reduced, but also performance of the permanent magnet synchronous motor is improved and intensity of a rotor iron core can be effectively guaranteed, and furthermore the rotor structure of the permanent magnet synchronous motor is simple in structure and provides convenience for mass production of the permanent magnet synchronous motors.

Description

A kind of permanent-magnetic synchronous motor rotor structure
Technical field
The present invention relates to a kind of rotor structure of motor, relate in particular to a kind of permanent-magnetic synchronous motor rotor structure.
Background technology
At present, the rotor of permanent magnet synchronous motor is embedded with permanent magnet, is used for improving efficiency and the power factor of motor.The closure of magnetic circuit is divided into two parts, and a part forms closed magnetic circuit by rotor core, i.e. the magnetic circuit of leakage field, and another part is to form closed magnetic circuit by stator core, more by the magnetic line of force of stator core, just means that the utilance of permanent magnet is higher.The interplane partition that is provided with of groove of conventional permanent-magnet synchronous motor rotor, if but the interplane partition width of groove is wider, leakage field is larger, and wasted permanent magnet material, cause cost to increase, and the width cutting off is narrower, in punching, the mechanical strength at this position is weaker again, when rotor runs up for a long time, when the punching at this position is turned round, the effect of centrifugal force and electromagnetic force can be ruptured, and affects the running of rotor.The rotor structure of current this magneto is guaranteeing, under the prerequisite that leakage field is little, to be difficult to guarantee the intensity of rotor core.
Summary of the invention
In order to solve above-mentioned technical problem, the object of this invention is to provide a kind of simple in structurely, leakage field is few, the permanent-magnetic synchronous motor rotor structure that intensity is high.
In order to realize above-mentioned object, the present invention has adopted following technical scheme:
A kind of permanent-magnetic synchronous motor rotor structure, comprise rotating shaft, rotor punching and permanent magnet, described rotor punching is radially evenly interval with respectively a circle aluminum cast groove and a circle permanent magnet trough from outside to inside, described permanent magnet trough is also provided with the first air groove near one end of aluminum cast groove, and permanent magnet trough is provided with the second air groove near one end of rotating shaft.
As preferred version: described permanent magnet trough becomes even number, and two adjacent permanent magnets groove is one group, and each permanent magnet trough becomes " L " type combination zone with corresponding the second air groove, and two " L " type combination zone openings in every group of permanent magnet trough are relative.
As preferred version: be also provided with the 3rd air groove between two permanent magnet trough of described each group permanent magnet trough, described the 3rd air groove is positioned at the outside of the second air groove.
As preferred version: described the first air groove becomes semicircle, and the 3rd air groove in echelon.
The invention provides a kind of novel permanent-magnetic synchronous motor rotor structure, more conventional rotor structure is compared, increased rational magnet isolation tank, can not only reduce the leakage field of this permagnetic synchronous motor, improve the performance of motor, and can effectively guarantee the intensity of rotor core, the present invention is simple in structure, for producing this motor in enormous quantities, provides convenience.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is made a detailed explanation.
A kind of permanent-magnetic synchronous motor rotor structure as shown in Figure 1, comprise rotating shaft 1, rotor punching 2 and permanent magnet 3, described rotor punching 2 is radially evenly interval with respectively a circle aluminum cast groove 21 and a circle permanent magnet trough 22 from outside to inside, described permanent magnet trough 22 is also provided with the first air groove 23 near one end of aluminum cast groove 21, and permanent magnet trough 22 is provided with the second air groove 24 near one end of rotating shaft 1.22 one-tenth even numbers of described permanent magnet trough, two adjacent permanent magnets groove 22 is one group, and each permanent magnet trough 22 and corresponding the second air groove 24 form " L " type combination zone 25, and two " L " type combination zone 25 openings in every group of permanent magnet trough 22 are relative.
Between two permanent magnet trough 22 of described each group permanent magnet trough 22, be also provided with the 3rd air groove 26, described the 3rd air groove 26 is positioned at the outside of the second air groove 24.23 one-tenth of described the first air grooves are semicircle, and the 3rd air groove 26 in echelon.

Claims (4)

1. a permanent-magnetic synchronous motor rotor structure, it is characterized in that: comprise rotating shaft (1), rotor punching (2) and permanent magnet (3), described rotor punching (2) is radially evenly interval with respectively a circle aluminum cast groove (21) and a circle permanent magnet trough (22) from outside to inside, described permanent magnet trough (22) is also provided with the first air groove (23) near one end of aluminum cast groove (21), and permanent magnet trough (22) is provided with the second air groove (24) near one end of rotating shaft (1).
2. a kind of permanent-magnetic synchronous motor rotor structure according to claim 1, it is characterized in that: described permanent magnet trough (22) becomes even number, two adjacent permanent magnets groove (22) is one group, each permanent magnet trough (22) and corresponding the second air groove (24) form " L " type combination zone (25), and two " L " type combination zones (25) opening in every group of permanent magnet trough (22) is relative.
3. a kind of permanent-magnetic synchronous motor rotor structure according to claim 1 and 2, it is characterized in that: between two permanent magnet trough (22) of described each group permanent magnet trough (22), be also provided with the 3rd air groove (26), described the 3rd air groove (26) is positioned at the outside of the second air groove (24).
4. a kind of permanent-magnetic synchronous motor rotor structure according to claim 3, is characterized in that: described the first air groove (23) becomes semicircle, and the 3rd air groove (26) in echelon.
CN201410276032.4A 2014-06-19 2014-06-19 Rotor structure of permanent magnet synchronous motor Pending CN104037965A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410276032.4A CN104037965A (en) 2014-06-19 2014-06-19 Rotor structure of permanent magnet synchronous motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410276032.4A CN104037965A (en) 2014-06-19 2014-06-19 Rotor structure of permanent magnet synchronous motor

Publications (1)

Publication Number Publication Date
CN104037965A true CN104037965A (en) 2014-09-10

Family

ID=51468616

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410276032.4A Pending CN104037965A (en) 2014-06-19 2014-06-19 Rotor structure of permanent magnet synchronous motor

Country Status (1)

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CN (1) CN104037965A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106230153A (en) * 2016-09-26 2016-12-14 威灵(芜湖)电机制造有限公司 Rotor core, rotor and self-starting permanent magnet synchronous motor
CN107276354A (en) * 2017-08-21 2017-10-20 伊泽瑞尔(大连)科技有限公司 A kind of rotor of tangential permanent magnetic synchronous motor
JP2018196216A (en) * 2017-05-16 2018-12-06 大銀微系統股▲分▼有限公司Hiwin Mikrosystem Corp. Built-in type permanent magnet motor

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201601540U (en) * 2009-07-17 2010-10-06 浙江西子富沃德电机有限公司 Permanent-magnet motor rotor structure
CN102142755A (en) * 2011-03-07 2011-08-03 浙江大学 V-shaped slot rotor of self-starting permanent magnet synchronous motor
CN201985726U (en) * 2011-02-25 2011-09-21 华北电力大学 Self-starting permanent magnet motor with rotor starting guide strips made of composite materials
US20120146336A1 (en) * 2010-12-08 2012-06-14 Masahiro Hori Permanent magnet rotating electrical machine and method for manufacturing a rotor of the same
CN204145120U (en) * 2014-06-19 2015-02-04 浙江西传电气科技有限公司 A kind of permanent-magnetic synchronous motor rotor structure

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201601540U (en) * 2009-07-17 2010-10-06 浙江西子富沃德电机有限公司 Permanent-magnet motor rotor structure
US20120146336A1 (en) * 2010-12-08 2012-06-14 Masahiro Hori Permanent magnet rotating electrical machine and method for manufacturing a rotor of the same
CN201985726U (en) * 2011-02-25 2011-09-21 华北电力大学 Self-starting permanent magnet motor with rotor starting guide strips made of composite materials
CN102142755A (en) * 2011-03-07 2011-08-03 浙江大学 V-shaped slot rotor of self-starting permanent magnet synchronous motor
CN204145120U (en) * 2014-06-19 2015-02-04 浙江西传电气科技有限公司 A kind of permanent-magnetic synchronous motor rotor structure

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106230153A (en) * 2016-09-26 2016-12-14 威灵(芜湖)电机制造有限公司 Rotor core, rotor and self-starting permanent magnet synchronous motor
JP2018196216A (en) * 2017-05-16 2018-12-06 大銀微系統股▲分▼有限公司Hiwin Mikrosystem Corp. Built-in type permanent magnet motor
CN107276354A (en) * 2017-08-21 2017-10-20 伊泽瑞尔(大连)科技有限公司 A kind of rotor of tangential permanent magnetic synchronous motor
CN107276354B (en) * 2017-08-21 2024-02-09 伊泽瑞尔(大连)科技有限公司 Rotor of tangential permanent magnet synchronous motor

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Application publication date: 20140910