CN208316436U - A kind of Rare-earth PMSM Rotor Structure - Google Patents
A kind of Rare-earth PMSM Rotor Structure Download PDFInfo
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- CN208316436U CN208316436U CN201820412527.9U CN201820412527U CN208316436U CN 208316436 U CN208316436 U CN 208316436U CN 201820412527 U CN201820412527 U CN 201820412527U CN 208316436 U CN208316436 U CN 208316436U
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- magnet steel
- hole
- rare
- punching
- steel hole
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- Iron Core Of Rotating Electric Machines (AREA)
Abstract
The utility model discloses a kind of Rare-earth PMSM Rotor Structures, it includes laminating the iron core formed by multiple punchings and being used to encapsulate the band of the iron core with the iron core both ends are set to, it is offered in the punching at its center with the matched shaft hole of the shaft and the multiple magnet steel holes uniformly distributed around the shaft hole, it is formed between two adjacent magnet steel holes at its center with the matched shaft hole of shaft, around the uniformly distributed multiple main magnet steel holes of the shaft hole and be set to the secondary magnet steel holes of main magnet steel hole two sides every being offered on magnetic magnetic bridge, punching.Using the rare earth permanent-magnet synchronization motor of rotor provided by the utility model, electric energy is saved compared with other permanent magnet synchronous motors of Same Efficieney, same type up to 20%；In addition, Rare-earth PMSM Rotor Structure structure provided by the utility model is simple, rotor leakage reactance is small, the space that rotor occupies motor is small, is conducive to the structure optimization of motor, and long service life.
Description
Technical field
The utility model relates to a kind of rare earth permanent-magnet synchronization motor more particularly to a kind of Rare-earth PMSM Rotor Structure,
Belong to motor field.
Background technique
Currently, motor power consumption in China's accounts for 60% or more of national power consumption according to statistics, wherein small three-phase asynchronous electric
Machine power consumption accounts for about 35%, is power consumption rich and influential family.Due to the rapid development of industrial and agricultural production and the raising of living standards of the people, to electric energy
Demand it is more and more, but the resources such as the coal of the main energy sources as electric energy, petroleum are fewer and fewer, thus research and develop high
Effect motor is the important measures for improving energy utilization rate, and one of the trend of motor development both at home and abroad.
Compared with electro-magnetic motor, rare-earth permanent magnet motor structure is simple, small in size, reliable for operation.Especially it is solved
The problem of starting difficulty of electro-magnetic motor is a kind of energy-saving efficient motor of asynchronous starting synchronous operation.It is contemplated that with
Rare-earth permanent magnet motor design continuous mature and society to the gradually understanding of this motor superior function, rare earth permanent magnet is electronic
The application of machine can be more and more wider.
Common Rare-earth PMSM Rotor Structure at present, the squirrel-cage bar in rotor structure are mainly used for starting, rotor
Middle built-in permanent magnet magnet steel.For middle-size and small-size motor band severe duty, rotor cage item would generally select skin effect stronger
Deep trouth cage modle and double cage modles, make motor at the start, due to skin effect, rotor resistance is automatically increased, to increase starting
Torque reduces starting current；When operating normally, rotor resistance is automatically reduced to normal value, makes it have higher efficiency.This
The Rare-earth PMSM Rotor Structure motor of structure design, structure is complicated, rotor leakage reactance is big, and deep trouth cage modle and double cage modles occupy
The a large amount of space of rotor, is unfavorable for the structure optimization and production and processing of motor, and motor faces very big technological problems, increases life
Cost is produced, in terms of motor section material, performance optimization and working characteristics, still has defect.
Utility model content
In order to solve the above technical problems, the utility model aim is to provide a kind of Rare-earth PMSM Rotor Structure, with
Overcome the deficiencies in the prior art.
In order to achieve the above objectives, the technical solution of the utility model is as follows:
The utility model embodiment provides a kind of Rare-earth PMSM Rotor Structure comprising laminates shape by multiple punchings
At iron core and with the iron core both ends are set to be used to encapsulate the band of the iron core, offer and be located therein in the punching
The shaft hole of the heart around the uniformly distributed multiple main magnet steel holes of the shaft hole and is set to the secondary magnet steel of the main magnet steel hole two sides
Hole is formed between the adjacent main magnet steel hole and the secondary magnet steel hole every corresponding on magnetic magnetic bridge, multiple punchings
Magnet steel hole overlaps the total magnet steel hole to be formed for placing permanent magnet magnet steel, the south poles phase of the permanent magnet magnet steel of adjacent two
Instead.
One of as a preferred embodiment of the present invention, open up that there are six the main magnet steel hole of V-type and six in the punching
The secondary magnet steel hole of "-" type, the tip in the main magnet steel hole of the V-type is towards the center of the punching, six main magnet steel
Hole split forms Magen David structure, line of the secondary magnet steel hole perpendicular to the tip in two adjacent main magnet steel holes.
One of as a preferred embodiment of the present invention, the main magnet steel hole and eight of eight "-" types is offered in the punching
The secondary magnet steel hole of a "-" type, eight main magnet steel hole splits form eight-sided formation, and the pair magnet steel hole is perpendicular to phase
The line in two adjacent main magnet steel holes.
One of as a preferred embodiment of the present invention, the marginal position of the punching is offered along the more of its circle distribution
A axially extending bore has been cast in aluminum strip in the axially extending bore, so that multiple punchings and band encapsulation are integral.
One of as a preferred embodiment of the present invention, the punching is silicon steel sheet.
Compared with prior art, the advantages of the utility model at least that:
1) Rare-earth PMSM Rotor Structure provided by the utility model relies on the permanent magnet magnet steel in rotor and stator rotation
The interaction for turning magnetic field is kept from the synchronous rotational speed of asynchronous operation of pulling in, the revolving speed and stator rotating excitation field that make rotor
Unanimously, without rotational speed difference, the copper and iron loss on rotor is eliminated；Further, since rare-earth permanent magnet motor rotor be by magnet steel Lai
Excitation reduces the exciting current of stator winding, and no-load loss is reduced.
2) reasonable, compact-sized using the rare earth permanent-magnet synchronization motor design of rotor provided by the utility model, and it is same
Other permanent magnet synchronous motors of constant power, same type, which are compared, saves electric energy up to 20%.
3) structure of Rare-earth PMSM Rotor Structure provided by the utility model is simple, rotor leakage reactance is small, and rotor occupies
The space of motor is small, is conducive to the structure optimization of motor, and long service life.
4) using the rare earth permanent-magnet synchronization motor of rotor provided by the utility model, in the feelings for the coiling group for changing stator
The power of motor can be changed under condition, no replacement is required frequency converter, thus the scope of application is wider.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
In description or attached drawing needed in the prior art is briefly described.
Fig. 1 is a kind of schematic front view of rare earth permanent-magnet synchronization motor disclosed in one preferred embodiment 1 of the utility model；
Fig. 2 is a kind of left side view signal of rare earth permanent-magnet synchronization motor disclosed in one preferred embodiment 1 of the utility model
Figure；
Fig. 3 is the structure of the punching of Rare-earth PMSM Rotor Structure disclosed in one preferred embodiment 1 of the utility model
Schematic diagram；
Fig. 4 is the structure of the punching of Rare-earth PMSM Rotor Structure disclosed in one preferred embodiment 2 of the utility model
Schematic diagram.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe.
The utility model embodiment provides a kind of Rare-earth PMSM Rotor Structure comprising laminates shape by multiple punchings
At iron core and with the iron core both ends are set to be used to encapsulate the band of the iron core, offer and be located therein in the punching
The shaft hole of the heart around the uniformly distributed multiple main magnet steel holes of the shaft hole and is set to the secondary magnet steel of the main magnet steel hole two sides
Hole is formed between the adjacent main magnet steel hole and the secondary magnet steel hole every corresponding on magnetic magnetic bridge, multiple punchings
Magnet steel hole overlaps the total magnet steel hole to be formed for placing permanent magnet magnet steel, the south poles phase of the permanent magnet magnet steel of adjacent two
Instead.
One of as a preferred embodiment of the present invention, open up that there are six the main magnet steel hole of V-type and six in the punching
The secondary magnet steel hole of "-" type, the tip in the main magnet steel hole of the V-type is towards the center of the punching, six main magnet steel
Hole split forms Magen David structure, line of the secondary magnet steel hole perpendicular to the tip in two adjacent main magnet steel holes.
One of as a preferred embodiment of the present invention, the main magnet steel hole and eight of eight "-" types is offered in the punching
The secondary magnet steel hole of a "-" type, eight main magnet steel hole splits form eight-sided formation, and the pair magnet steel hole is perpendicular to phase
The line in two adjacent main magnet steel holes.
One of as a preferred embodiment of the present invention, the marginal position of the punching is offered along the more of its circle distribution
A axially extending bore has been cast in aluminum strip in the axially extending bore, so that multiple punchings and band encapsulation are integral.
One of as a preferred embodiment of the present invention, the punching is silicon steel sheet.
By above technical scheme, Rare-earth PMSM Rotor Structure provided by the utility model is by the permanent magnetism in rotor
The interaction of body magnet steel and stator rotating excitation field makes the revolving speed and stator rotating excitation field of rotor from asynchronous operation of pulling in
Synchronous rotational speed be consistent, without rotational speed difference, eliminate on rotor copper and iron loss；Further, since rare-earth permanent magnet motor
Rotor is to reduce the exciting current of stator winding by magnet steel come excitation, and no-load loss is reduced；It is provided using the utility model
Rotor rare earth permanent-magnet synchronization motor design it is reasonable, compact-sized, with other permanent magnet synchronous electrics of Same Efficieney, same type
Machine, which is compared, saves electric energy up to 20%.The structure of Rare-earth PMSM Rotor Structure provided by the utility model is simple, rotor leakage reactance
Small, the space that rotor occupies motor is small, is conducive to the structure optimization of motor, and long service life.Using the utility model institute
The rare earth permanent-magnet synchronization motor of the rotor of offer can change the power of motor in the case where changing the coiling group of stator,
No replacement is required frequency converter, thus the scope of application is wider.
The technical solution of the utility model is further described below in conjunction with attached drawing 1-4 and specific embodiment 1-2.
Embodiment 1:
As shown in figure 1 to 3, the present embodiment 1 provides a kind of Rare-earth PMSM Rotor Structure and using the dilute of the rotor ginseng
A kind of native permanent magnet synchronous motor, wherein rare earth permanent-magnet synchronization motor provided by the present embodiment 1 comprising stator case 1, it is fixed
The front-end and back-end of sub- shell 1 are respectively fixed with drive end bearing bracket 2 and rear end cap 3, and are equipped with and are turned by bearing 4 in stator case 1
Axis 5 is provided with rotor 6 in shaft 5, and respective rotor 6 has gas between stator 7 and rotor 6 in being provided with stator 7 in stator case 1
Gap, rotor 6 include laminating the iron core formed by multiple silicon steel sheets 61 and being used to encapsulate the band of iron core with iron core both ends are set to,
It is offered on silicon steel sheet 61 at its center and with 5 611,12 magnet steel holes of matched shaft hole of shaft and along its circumference
Uniformly 613,12 magnet steel holes of multiple axially extending bores include the main magnet steel for surrounding six V-types that shaft hole 611 is distributed at edge
The secondary magnet steel hole 6122 in "-" type in hole 6121 and six two sides positioned at main magnet steel hole 6121, the tip in main magnet steel hole 6121
Towards the center of punching, six main magnet steel hole splits form Magen David structure, and secondary magnet steel hole is perpendicular to two adjacent main magnet steel
The line at the tip in hole, and the line at the tip without departing from two adjacent main magnet steel holes.It is corresponding on multiple silicon steel sheets 61
Magnet steel hole overlap to be formed it is multiple for placing total magnet steel holes of permanent magnet magnet steel 8, the north and south of two adjacent permanent magnet magnet steel 8
Pole is on the contrary, effect of magnetic influence between can offsetting.Specifically, being cast in the axially extending bore 613 at the edge of silicon steel sheet 61
Aluminum strip 91, so that multiple silicon steel sheets 61 and the encapsulation of the band of aluminum are integral.The stator 7 includes winding yoke 71 and inlays
In the winding coil 72 in winding yoke 71, the winding yoke 71 is laminated by multi-disc punching to be formed, and the edge of punching is provided with out
The groove put, winding yoke 71 are encapsulated by the aluminum strip 92 that is set in punching groove and positioned at the aluminium strip ring at 71 both ends of winding yoke
It is integrated.
Embodiment 2:
The present embodiment 2 provides a kind of Rare-earth PMSM Rotor Structure and the rare-earth permanent-magnetic synchronous electricity using the rotor
Machine, the structure of the rare earth permanent-magnet synchronization motor in embodiment 2 and the structural portion split-phase of the rare earth permanent-magnet synchronization motor in embodiment 1
Together, difference is only in that Rare-earth PMSM Rotor Structure 6, only the structure of rotor is described herein, other structures are no longer
It repeats.
Shown in Figure 4, rotor 6 includes laminating the iron core formed by multiple silicon steel sheets 61 and using with iron core both ends are set to
Offered in the band of encapsulation iron core, on silicon steel sheet 61 it is at its center and with 5 matched shaft hole 611,16 of shaft
Magnet steel hole and along its circumferential edges uniformly 613,16 magnet steel holes of multiple axially extending bores include around shaft hole 611 be distributed
Eight "-" types main magnet steel hole 6121 ' and eight be located at main magnet steel hole 6121 ' two sides the secondary magnet steel hole in "-" type
6122 ', eight main 6121 ' splits of magnet steel hole form eight-sided formation, and eight secondary magnet steel holes 6122 ' are perpendicular to two adjacent institutes
State the line in main magnet steel hole.Corresponding magnet steel hole on multiple silicon steel sheets 61 overlap to be formed it is multiple for placing permanent magnet magnet steel 8
Total magnet steel hole, the south poles of two adjacent permanent magnet magnet steel 8 are on the contrary, effect of magnetic influence between can offsetting.Specifically
, it is cast in aluminum strip 91 in the axially extending bore 613 at the edge of silicon steel sheet 61, so that the band ring seal of multiple silicon steel sheets 61 and aluminum
Dress up one.
The foregoing description of the disclosed embodiments can be realized professional and technical personnel in the field or using originally practical new
Type.Various modifications to these embodiments will be readily apparent to those skilled in the art, and determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause
This, the present invention will not be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The widest scope consistent with features of novelty.
Claims (5)
1. a kind of Rare-earth PMSM Rotor Structure, it is characterised in that: including by multiple punchings laminate the iron core formed and with
It is used to encapsulate the band of the iron core set on the iron core both ends, offers shaft hole at its center in the punching, encloses
Around the uniformly distributed multiple main magnet steel holes of the shaft hole and it is set to the secondary magnet steel holes of the main magnet steel hole two sides, adjacent is described
It is formed between main magnet steel hole and the secondary magnet steel hole and overlaps to be formed every the corresponding magnet steel hole on magnetic magnetic bridge, multiple punchings
For placing total magnet steel hole of permanent magnet magnet steel, the south poles of the permanent magnet magnet steel of adjacent two are opposite.
2. a kind of Rare-earth PMSM Rotor Structure according to claim 1, it is characterised in that: offered in the punching
The main magnet steel hole of six V-types and the secondary magnet steel hole of six "-" types, the tip in the main magnet steel hole of the V-type is towards the punching
Center, six main magnet steel hole splits form Magen David structure, and the secondary magnet steel hole is perpendicular to two adjacent institutes
State the line at the tip in main magnet steel hole.
3. a kind of Rare-earth PMSM Rotor Structure according to claim 1, it is characterised in that: offered in the punching
The main magnet steel hole of eight "-" types and the secondary magnet steel hole of eight "-" types, eight main magnet steel hole splits form octagon knot
Structure, line of the pair magnet steel hole perpendicular to two adjacent main magnet steel holes.
4. a kind of Rare-earth PMSM Rotor Structure according to claim 1, it is characterised in that: the margin location of the punching
The multiple axially extending bores offered along its circle distribution are set, have been cast in aluminum strip in the axially extending bore, so that described is multiple
Punching and band encapsulation are integral.
5. a kind of Rare-earth PMSM Rotor Structure according to claim 1, it is characterised in that: the punching is silicon steel
Piece.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820412527.9U CN208316436U (en) | 2018-03-26 | 2018-03-26 | A kind of Rare-earth PMSM Rotor Structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820412527.9U CN208316436U (en) | 2018-03-26 | 2018-03-26 | A kind of Rare-earth PMSM Rotor Structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208316436U true CN208316436U (en) | 2019-01-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820412527.9U Expired - Fee Related CN208316436U (en) | 2018-03-26 | 2018-03-26 | A kind of Rare-earth PMSM Rotor Structure |
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| CN (1) | CN208316436U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114362466A (en) * | 2021-12-06 | 2022-04-15 | 中车永济电机有限公司 | Rotor structure of asynchronous starting permanent magnet synchronous motor |
-
2018
- 2018-03-26 CN CN201820412527.9U patent/CN208316436U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114362466A (en) * | 2021-12-06 | 2022-04-15 | 中车永济电机有限公司 | Rotor structure of asynchronous starting permanent magnet synchronous motor |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190101 Termination date: 20210326 |