CN201388094Y - Self-start permanent magnet synchronous motor rotor - Google Patents
Self-start permanent magnet synchronous motor rotor Download PDFInfo
- Publication number
- CN201388094Y CN201388094Y CN200920106658U CN200920106658U CN201388094Y CN 201388094 Y CN201388094 Y CN 201388094Y CN 200920106658 U CN200920106658 U CN 200920106658U CN 200920106658 U CN200920106658 U CN 200920106658U CN 201388094 Y CN201388094 Y CN 201388094Y
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- rotor core
- rotor
- permanent magnet
- synchronous motor
- permanent
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- Expired - Fee Related
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- Permanent Magnet Type Synchronous Machine (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
A self-start permanent magnet synchronous motor rotor comprises a rotor shaft, a rotor core, a squirrel cage and permanent magnets. In the rotor core, a plurality of permanent magnets are evenly distributed along the circumference; the magnetic poles of the permanent magnets face toward the tangential direction of the rotor circumference and the magnetic poles with same polarity are arranged oppositely; and part of permanent magnets also can be arranged at intervals, with polarity arranged radically. The rotor is provided with a self-start squirrel cage. In the rotor core, permanent magnets are evenly distributed along the circumference; the magnetic poles of the permanent magnets face toward the tangential direction of the rotor core circumference; and the magnetic poles with same polarity are arranged oppositely, thus leading the magnetic field of the permanent magnets of the rotor to have optimal magnetic force and guaranteeing that the self-start permanent magnet synchronous motor rotor has highest running efficiency. The self-start permanent magnet synchronous motor rotor has large mechanical strength and high magnetic strength, in addition, the permanent magnets do not generate looseness or displacement, have self-start function and are energy-saving and environment-protecting, thus being beneficial to the popularization and application of permanent magnet synchronous motors.
Description
Technical field
The utility model relates to a kind of motor rotor, particularly a kind of self-starting permanent-magnet synchronous motor rotor.
Background technology
Permanent magnet synchronous motor is owing to used permanent magnet to replace utilizing electromagnetic induction to produce the electromagnet in magnetic field in rotor, therefore electromagnetic consumable is little, the efficient height, obtain application more and more widely in the Electric Traction field, but, the method defectiveness of electromagnet is installed on the rotor of permanent magnet synchronous motor usually, permanent magnet is loosening after causing motor to turn round for a long time, displacement, make permanent magnet synchronous motor normally not use, and this class permanent magnet synchronous motor is not activated moment, can't start operation voluntarily, therefore influence the promotion and application of permanent magnet synchronous motor.
The utility model content
For the permanent magnet that solves on the existing permanent-magnet synchronous motor rotor is installed insecure, loosening easily, displacement, and there is not starting torque, can't start the problem of operation voluntarily, the utility model proposes a kind of self-starting permanent-magnet synchronous motor rotor, the technical scheme that is adopted is: the self-starting permanent-magnet synchronous motor rotor, comprise: armature spindle, rotor core, mouse cage and permanent magnet, between armature spindle and rotor core, be provided with the magnetic separator, in rotor core, the polylith permanent magnet along the circumferential direction evenly is set, the magnetic pole of permanent magnet is towards the tangential direction of rotor core circumference, the magnetic pole of identical polar is oppositely arranged, and is provided with between permanent magnet and rotor core to fixedly connected mechanism.
The quantity of permanent magnet is even number, and wherein the magnetic pole of the permanent magnet of half is along the radially setting of rotor core, and the permanent magnet that magnetic pole radial is provided with is towards the pole polarity of rotor core circumferential surface, and the pole polarity relative with two blocks of adjacent permanent magnets is identical.
Mouse cage is by a plurality of squirrel-cage bars that axially are provided with along the rotor core near surface and be located at the rotor core two ends respectively and two short circuit conducting rings being electrically connected with each squirrel-cage bar are formed.
A short circuit conducting ring of mouse cage, with each squirrel-cage bar be conjoined structure; Another short circuit conducting ring of mouse cage, with each squirrel-cage bar for dividing a body structure, and is electrically connected with each squirrel-cage bar, the short circuit conducting ring and the squirrel-cage bar of conjoined structure, and the short circuit conducting ring of branch body structure are fixedlyed connected mechanism with being equipped with between rotor core.
The quantity of permanent magnet is identical with the number of magnetic poles of the motor stator of institute adapted.
The structure of rotor core is that the periphery that the multi-disc laminar rotor core sheet identical with its cross section passes the magnetic separator stacks composition.
The structure of rotor core is an overall structure.
Between armature spindle and magnetic separator, all be provided with circumferential jockey between described magnetic separator and rotor core.
The technique effect that self-starting permanent-magnet synchronous motor rotor of the present utility model adopts technique scheme to obtain is: be provided with the magnetic separator between armature spindle and rotor core, the magnetic field that can prevent each piece permanent magnet interferes with each other, and guarantees the operate as normal of permanent-magnet electric machine rotor.In rotor core, the polylith permanent magnet along the circumferential direction evenly is set, the magnetic pole of permanent magnet is towards the tangential direction of rotor core circumference, the magnetic pole of identical polar is oppositely arranged, can make the magnetic field of rotor permanent magnet have best magnetic force property, guarantee that self-starting permanent-magnet synchronous motor rotor of the present utility model has the highest running efficiency.
The quantity of permanent magnet is even number, wherein the magnetic pole of the permanent magnet of half is along the radially setting of rotor, the permanent magnet that magnetic pole radial is provided with is towards the pole polarity on rotor circumference surface, the pole polarity relative with two blocks of adjacent permanent magnets is identical, can make rotor form the stronger magnetic line of force radially, have bigger torque when making rotor synchronous operation.
The short-circuited coil that mouse cage constitutes, the rotating magnetic field that can utilize stator coils of motor to produce when starting produces the induction short circuit current, forms asynchronous starting moment, makes permanent magnet synchronous motor realize self-starting.After permanent magnet synchronous motor enters the run-in synchronism state, no longer produce the induction short circuit current in the short-circuited coil of mouse cage, can not influence the normal operation of synchronous motor.
The disjunctor short circuit conducting ring of mouse cage and split short circuit conducting ring are located at the two ends of rotor core respectively, and fixedly connected with rotor core, mouse cage and rotor core were connected as a single entity, can utilize disjunctor short circuit conducting ring and split short circuit conducting ring respectively two axial ends of permanent magnet to be compressed again, it is fixing reliably that permanent magnet is obtained, and long-time running can not become flexible yet, is shifted.
The quantity of the permanent magnet that is provided with along the tangential direction of rotor core circumference is identical with the number of magnetic poles of the motor stator of institute adapted.Can make the synchronous motor that adopts self-starting permanent-magnet synchronous motor rotor of the present utility model have best service performance and efficient.
The periphery that rotor core is passed the magnetic separator by the multi-disc laminar rotor core sheet identical with its cross section stacks forms the made rotor core of high permeability easy to use.
The structure of rotor core is an overall structure, can simplify the manufacturing process of rotor core, reduce cost, and the reliability of raising rotor core, because motor only is in asynchronous running of short duration the startup stage, after entering normal run-in synchronism,, can not cause eddy current loss even the resistivity of integral rotor iron core is not high yet.
Between armature spindle and magnetic separator, all be provided with circumferential jockey between magnetic separator and rotor core, can guarantee that the each several part of rotor is connected firmly, and transmit the desired torque of design.
Self-starting permanent-magnet synchronous motor rotor of the present utility model, the dimensional accuracy height, mechanical strength is big, process easy, the magnetic field intensity height, permanent magnet can not become flexible, be shifted, and has self-starting function, energy-conserving and environment-protective, efficient height, easy to use, help promoting the promotion and application of permanent magnet synchronous motor.
Description of drawings
Accompanying drawing 1 is the structural representation front view of the utility model self-starting permanent-magnet synchronous motor rotor.
Accompanying drawing 2 is the utility model self-starting permanent-magnet synchronous motor rotor permanent magnet tangentially is provided with magnetic pole along circumference structural representation sectional drawings.
To be the utility model self-starting permanent-magnet synchronous motor rotor permanent magnets along circumference tangential and spaced radial is provided with the structural representation sectional drawing of magnetic pole for accompanying drawing 3.
Sign implication in the accompanying drawing is as follows:
1-magnetic separator, 2-armature spindle, 3-rotor core, the tangential magnetic pole permanent magnet of 4-circumference, 41-magnet radial poles permanent magnet, 5-squirrel-cage bar, 6-bolt mechanism, 7-split short circuit conducting ring, 8-disjunctor short circuit conducting ring.
Embodiment
Self-starting permanent-magnet synchronous motor rotor of the present utility model comprises armature spindle 2, rotor core 3, and mouse cage and permanent magnet are provided with magnetic separator 1 between armature spindle 2 and rotor core 3.Accompanying drawing 2 is the utility model self-starting permanent-magnet synchronous motor rotor permanent magnet tangentially is provided with magnetic pole along circumference structural representation sectional drawings, in rotor core 3, polylith permanent magnet 4 along the circumferential direction evenly is set, the magnetic pole of permanent magnet 4 is towards the tangential direction of rotor core 3 circumference, and the magnetic pole of identical polar is oppositely arranged.To be the utility model self-starting permanent-magnet synchronous motor rotor permanent magnets along circumference tangential and spaced radial is provided with the structural representation sectional drawing of magnetic pole for accompanying drawing 3, the quantity of permanent magnet is even number, wherein the permanent magnet 4 of half is provided with magnetic pole along the tangent to periphery direction of rotor core, the magnetic pole of second half permanent magnet 41 is along the radially setting of rotor core, permanent magnet 41 is towards the pole polarity on rotor circumference surface, and the pole polarity relative with adjacent two blocks of permanent magnets 4 is identical.Permanent magnet 4,41 should at first be selected the permanent magnet with high-coercive force kind for use, as: class permanent magnets such as neodymium iron boron, SmCo, aluminium nickel cobalt.Mouse cage is by forming along near a plurality of squirrel-cage bars 5 that axially are provided with rotor core 3 outer round surface and the short circuit conducting ring of being located at the rotor core two ends respectively, the split short circuit conducting ring 7 of rotor core 3 one ends is electrically connected with an end of each squirrel-cage bar 5, rotor core 3 other ends are provided with disjunctor short circuit conducting ring 8, disjunctor short circuit conducting ring 8 is a conjoined structure with each squirrel-cage bar 5, be electrically connected with the other end of each squirrel-cage bar 5, and fixedly connected with rotor core.Split short circuit conducting ring 7 can use gluing, riveted joint, fixedly method such as inlay fixedlys connected with rotor core 3, is to use bolt mechanism 6 that split short circuit conducting ring 7 and rotor core 3 are linked together in the accompanying drawing.3 of split short circuit conducting ring 7 and rotor cores are provided with a plurality of fastening bolt mechanism 6, in the gap of fastening bolt mechanism 6 between the relative magnetic pole of each permanent magnet 4, and run through split short circuit conducting ring 7 and rotor core 3 vertically, split short circuit conducting ring 7 is fixedlyed connected with rotor core 3.Permanent magnet 4,41 can use gluing, riveted joint, fixedly method such as inlay fixedlys connected with rotor core 3, also can be as shown in Figure 1, utilize split short circuit conducting ring 7 and disjunctor short circuit conducting ring 8 to push down the axial end of permanent magnet 4,41, it is fixing reliably that permanent magnet 4,41 and rotor core 3 are obtained.
The quantity of permanent magnet 4 in the accompanying drawing 2 can be identical with the number of magnetic poles of the motor stator of institute adapted.The quantity of permanent magnet 41 in the accompanying drawing 3 can be identical with the number of magnetic poles of the motor stator of institute adapted.Rotor core 3 can be stacked by the periphery that the multi-disc laminar rotor core sheet identical with its cross section passes magnetic separator 1 to be formed, and by fastening bolt mechanism 6 each rotor core sheet is connected as one, reserve the cavity that squirrel-cage bar 5 and permanent magnet 4,41 are set in the rotor core 3.The material of rotor core sheet can be selected the silicon steel sheet of high permeability for use, also can select low-carbon (LC) steel disc or electrician's soft iron sheet for use, and the surface of rotor core sheet can be provided with electric insulation layer, the electromagnetic consumable of rotor core 3 when reducing motor start-up.Rotor core 3 also can be made overall structure.1 of armature spindle 2 and magnetic separator, magnetic separator 1 and 3 of rotor cores all are provided with circumferential bindiny mechanism, and circumferentially bindiny mechanism can adopt forms such as key, spline or annular knurl, and can cooperate technology such as casting to connect.
Make, assemble self-starting permanent-magnet synchronous motor rotor of the present utility model, have the kinds of processes method available, now lift an example.During manufacturing, with armature spindle 2, after rotor core 3 location positioning on request, permanent magnet 4 is being set, place and permanent magnet 4 in 41 the cavity, 41 shape, the permanent magnet that measure-alike exotic material is made substitutes body, to guarantee to make the concentricity of back rotor core 3 and armature spindle 2, use non-magnetic conductor material disposable with magnetic separator 1, squirrel-cage bar 5 and disjunctor short circuit conducting ring 8 cast out, the first-selected aluminium of non-magnetic conductor material, copper or magnesium, the cooling back is taken out permanent magnet and is substituted body, behind the finishing size and dimension, Bearing Installation face with armature spindle 2 is a positioning reference, the outer round surface of processing rotor iron core 3 can guarantee the size and the form and position tolerance of rotor core 3 cylindricals.At last each permanent magnet 4,41 is put into and be its set cavity, split short circuit conducting ring 7 is pushed down each piece permanent magnet 4,41, and after making split short circuit conducting ring 7 and each squirrel-cage bar 5 being electrically connected, use fastening bolt mechanism 6 to fasten as one with split short circuit conducting ring 7, each piece permanent magnet 4,41 with by the rotor core 3 that rotor core sheet is formed.After as required the self-starting permanent-magnet synchronous motor rotor being carried out quiet, dynamic balance calibration, self-starting permanent-magnet synchronous motor rotor of the present utility model has just been finished the course of processing.
Self-starting permanent-magnet synchronous motor rotor of the present utility model is not subjected to the restriction of above-mentioned execution mode, everyly utilizes basic structure of the present utility model, and the technical scheme that the method by conversion or replacement obtains is all in protection range of the present utility model.
Claims (8)
1, self-starting permanent-magnet synchronous motor rotor, comprise: armature spindle, rotor core, mouse cage and permanent magnet, it is characterized in that: between armature spindle and rotor core, be provided with the magnetic separator, in rotor core, the polylith permanent magnet along the circumferential direction evenly is set, the magnetic pole of described permanent magnet is towards the tangential direction of rotor core circumference, and the magnetic pole of identical polar is oppositely arranged, and is provided with between described permanent magnet and rotor core to fixedly connected mechanism.
2, the described self-starting permanent-magnet synchronous motor rotor of claim 1, it is characterized in that: the quantity of described permanent magnet is even number, wherein the magnetic pole of the permanent magnet of half is along the radially setting of rotor core, the permanent magnet that described magnetic pole radial is provided with is towards the pole polarity of rotor core circumferential surface, and the pole polarity relative with two blocks of adjacent permanent magnets is identical.
3, the described self-starting permanent-magnet synchronous motor rotor of claim 1 is characterized in that: described mouse cage is by a plurality of squirrel-cage bars that axially are provided with along the rotor core near surface and be located at the rotor core two ends respectively and two short circuit conducting rings being electrically connected with each squirrel-cage bar are formed.
4, the described self-starting permanent-magnet synchronous motor rotor of claim 3 is characterized in that: a short circuit conducting ring of described mouse cage, with each squirrel-cage bar be conjoined structure; Another short circuit conducting ring of described mouse cage, with each squirrel-cage bar for dividing a body structure, and is electrically connected with each squirrel-cage bar, the short circuit conducting ring and the squirrel-cage bar of described conjoined structure, and the short circuit conducting ring of branch body structure are fixedlyed connected mechanism with being equipped with between rotor core.
5, the described self-starting permanent-magnet synchronous motor rotor of claim 1 is characterized in that: the quantity of described permanent magnet is identical with the number of magnetic poles of the motor stator of institute adapted.
6, the described self-starting permanent-magnet synchronous motor rotor of claim 1 is characterized in that: the structure of described rotor core is that the periphery that the multi-disc laminar rotor core sheet identical with its cross section passes the magnetic separator stacks composition.
7, the described self-starting permanent-magnet synchronous motor rotor of claim 1, it is characterized in that: the structure of described rotor core is an overall structure.
8, the described self-starting permanent-magnet synchronous motor rotor of claim 1 is characterized in that: between described armature spindle and magnetic separator, all be provided with circumferential jockey between described magnetic separator and rotor core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920106658U CN201388094Y (en) | 2009-04-01 | 2009-04-01 | Self-start permanent magnet synchronous motor rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920106658U CN201388094Y (en) | 2009-04-01 | 2009-04-01 | Self-start permanent magnet synchronous motor rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201388094Y true CN201388094Y (en) | 2010-01-20 |
Family
ID=41580638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920106658U Expired - Fee Related CN201388094Y (en) | 2009-04-01 | 2009-04-01 | Self-start permanent magnet synchronous motor rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201388094Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102420483A (en) * | 2011-12-21 | 2012-04-18 | 铜陵浩岩节能科技有限公司 | Rotor of low-speed high-power motor |
| CN102437665A (en) * | 2011-12-16 | 2012-05-02 | 铜陵浩岩节能科技有限公司 | Rotor for permanent magnet motor |
| CN102593986A (en) * | 2012-03-15 | 2012-07-18 | 岳群生 | Rotor of line-start permanent magnetic synchronous motor |
| CN106712423A (en) * | 2015-08-03 | 2017-05-24 | 江苏华源防爆电机有限公司 | Rotor-surface-mounted type flameproof permanent-magnet synchronous motor |
| CN106712341A (en) * | 2015-08-03 | 2017-05-24 | 江苏华源防爆电机有限公司 | Flameproof self-starting permanent magnet synchronous motor |
-
2009
- 2009-04-01 CN CN200920106658U patent/CN201388094Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102437665A (en) * | 2011-12-16 | 2012-05-02 | 铜陵浩岩节能科技有限公司 | Rotor for permanent magnet motor |
| CN102420483A (en) * | 2011-12-21 | 2012-04-18 | 铜陵浩岩节能科技有限公司 | Rotor of low-speed high-power motor |
| CN102593986A (en) * | 2012-03-15 | 2012-07-18 | 岳群生 | Rotor of line-start permanent magnetic synchronous motor |
| CN106712423A (en) * | 2015-08-03 | 2017-05-24 | 江苏华源防爆电机有限公司 | Rotor-surface-mounted type flameproof permanent-magnet synchronous motor |
| CN106712341A (en) * | 2015-08-03 | 2017-05-24 | 江苏华源防爆电机有限公司 | Flameproof self-starting permanent magnet synchronous motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20100120 Termination date: 20120401 |