CN207039321U - Rotor and motor - Google Patents
Rotor and motor Download PDFInfo
- Publication number
- CN207039321U CN207039321U CN201720958827.2U CN201720958827U CN207039321U CN 207039321 U CN207039321 U CN 207039321U CN 201720958827 U CN201720958827 U CN 201720958827U CN 207039321 U CN207039321 U CN 207039321U
- Authority
- CN
- China
- Prior art keywords
- magnet steel
- rotor
- rotor core
- magnetic
- steel
- 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.)
- Active
Links
Landscapes
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The utility model provides a kind of rotor and motor.The rotor includes rotor core and is embedded the magnetic steel component in rotor core, magnetic steel component includes multiple magnet steel groups, magnet steel group includes two pieces of cross sections and is symmetricly set on the both sides of big magnet steel in the curved big magnet steel of the small magnet steel of in-line and one piece of cross section, two blocks of small magnet steel.Because the magnetic steel component in the utility model is made up of symmetrically arranged two pieces of cross sections in the curved big magnet steel of small magnet steel and one piece of cross section of in-line, for rotor of the prior art, when the high rotating speed operation of rotor, the punching for forming rotor core is subjected to centrifugal force reduction caused by high rotating speed, reduce maximum stress of the punching for forming rotor core caused by high speed rotates, the structural strength of such rotor is further increased, adds the reliability of rotor high-speed cruising.
Description
Technical field
Technical field of driving is the utility model is related to, in particular to a kind of rotor and motor.
Background technology
Patent document 201110427613.X discloses a kind of built-in rotor structure of permanent-magnet motor, built-in type permanent-magnet electricity
Machine rotor is per pole using the yi word pattern magnet steel of segmentation, and rotor structure is simple, by the way that same pole magnet steel is divided into three sections and three sections of phases
Deng, a kind of structural strength (magnet steel segmentation improve magnet steel intensity be conventional method) of rotor is improved to a certain extent, but
It is for high-power interior permanent magnet machines, when further improving rotating speed, for example rotor speed is more than after 10000r/min,
The silicon steel sheet of this kind of structure be also difficult to bear high rotating speed caused by centrifugal force, ultimately result in rotor fails.
Patent document 201110073137.6 discloses the built-in rotor structure of permanent-magnet motor of another kind, and this is built-in forever
Magneto rotor also uses the word magnet steel of segmented one per pole, and compared with patent document 201110427613.X, it is per pole magnet steel point
The yi word pattern magnet steel width of section differs in size, and it is to improve the waveform of air-gap field to be divided into the purpose that width does not wait magnet steel, makes it just
String, secondly magnet steel segmentation, improves the intensity of magnet steel to a certain extent, with patent document 201110427613.X, still
This kind of structure magnet steel width size is modulated by sineization, and generally more per the segmentation of pole magnet steel, leakage field is serious, magnetic steel material utilization rate
Low, rotor craft type is poor, simultaneously because complex rotor structure, is reducing the reliability of total to a certain degree again.
In addition, also there are a kind of simple built-in rotor structure of permanent-magnet motor of structure, the built-in permanent magnet motor rotor
The word magnet steel of segmented one is also used per pole, and rotor strength is higher.Compared with patent document 201110427613.X, it is per pole magnetic
The yi word pattern magnet steel width of steel segmentation differs in size, broad in the middle, small in ends；Compared with patent document 201110073137.6, often
Pole does not pursue the sineization of air gap flux density, rotor structure is effectively simplified only with three sections of yi word pattern magnet steel, rotor work
Skill greatly improves.
Utility model content
Main purpose of the present utility model is to provide a kind of rotor and motor, to solve motor of the prior art
The low problem of reliability of rotor.
To achieve these goals, according to one side of the present utility model, there is provided a kind of rotor, including rotor
Iron core and the magnetic steel component in rotor core is embedded, magnetic steel component includes multiple magnet steel groups, and magnet steel group includes two pieces of cross sections
In the curved big magnet steel of the small magnet steel of in-line and one piece of cross section, two blocks of small magnet steel are symmetricly set on the two of big magnet steel
Side.
Further, the cross section of big magnet steel is in circular arc.
Further, multiple magnet steel grooves are provided with rotor core, big magnet steel and small magnet steel are arranged on magnetic correspondingly
In steel tank.
Further, big magnet steel is 1.1~1.5 times of small magnet steel along the width in the circumference of rotor core.
Further, thickness radially of the big magnet steel along rotor core is 1.0~1.1 times of small magnet steel.
Further, the thickness between the outward flange of big magnet steel and the outward flange of rotor core is 8mm~12mm.
Further, it is provided with magnetic conduction bridge between two neighboring magnet steel groove, magnetic conduction bridge is along the width in the circumference of rotor core
Spend for 0.5mm~3mm.
Further, it is provided with magnetic bridge between magnet steel groove and the outward flange of rotor core, magnetic bridge is along rotor core
Width radially is 1mm~2mm.
Further, when rotor core axis and plane-parallel, small magnet steel and between the straight line of horizontal plane
Angle is 60 °~70 °.
Further, rotor core is formed using silicon steel sheet compacting.
Further, between the outward flange of big magnet steel and magnet steel groove, it is respectively provided between the outward flange of small magnet steel and magnet steel groove
Width is 0.03mm~0.1mm gap, and nonmetallic materials are filled with gap.
Further, nonmetallic materials are epoxy pouring sealant or magnet steel glue or rubber.
Further, big magnet steel and small magnet steel are made using neodymium iron boron or Ferrite Material.
Further, small magnet steel is made using Ferrite Material, and big magnet steel is made using neodymium iron boron.
Further, rotor also includes rotating shaft, and rotor core is set in rotating shaft, and rotating shaft is magnetic conductive axis or non-led
Magnetic axis.
Further, the center of circle of the arc-shaped cross-section of big magnet steel and the axis coinciding of rotor core or misaligned.
According to another aspect of the present utility model, there is provided a kind of motor, including rotor, rotor are above-mentioned
Rotor.
Using the technical solution of the utility model, because the magnetic steel component in the utility model is by symmetrically arranged two pieces
Cross section is in the curved big magnet steel composition of the small magnet steel of in-line and one piece of cross section, relative to motor of the prior art
For rotor, when the high rotating speed operation of rotor, the punching for forming rotor core is subjected to centrifugal force caused by high rotating speed
Reduce, reduce maximum stress of the punching for forming rotor core caused by high speed rotates, further increase such motor
The structural strength of rotor, add the reliability of rotor high-speed cruising.
Brief description of the drawings
The Figure of description for forming the part of the application is used for providing further understanding to of the present utility model, this practicality
New schematic description and description is used to explain the utility model, does not form to improper restriction of the present utility model.
In the accompanying drawings：
Fig. 1 diagrammatically illustrates 1/4 front view of the rotor of first embodiment of the present utility model；And
Fig. 2 diagrammatically illustrates 1/4 front view of the rotor of second embodiment of the present utility model.
Wherein, above-mentioned accompanying drawing marks including the following drawings：
10th, rotor core；11st, magnet steel groove；20th, rotating shaft；30th, big magnet steel；40th, small magnet steel；50th, magnetic conduction bridge；60th, every magnetic
Bridge；70th, gap.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the application can phase
Mutually combination.Describe the utility model in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
It should be noted that term used herein above is merely to describe embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singulative
It is also intended to include plural form, additionally, it should be understood that, when in this manual using term "comprising" and/or " bag
Include " when, it indicates existing characteristics, step, operation, device, component and/or combinations thereof.
It should be noted that term " first " in the description and claims of this application and above-mentioned accompanying drawing, "
Two " etc. be for distinguishing similar object, without for describing specific order or precedence.It should be appreciated that so use
Data can exchange in the appropriate case, so that presently filed embodiment described herein for example can be with except herein
Order beyond those of diagram or description is implemented.In addition, term " comprising " and " having " and their any deformation, it is intended that
Be to cover it is non-exclusive include, for example, containing the process of series of steps or unit, method, system, product or equipment not
Be necessarily limited to those steps or the unit clearly listed, but may include not list clearly or for these processes, side
The intrinsic other steps of method, product or equipment or unit.
For the ease of description, space relative terms can be used herein, as " ... on ", " ... top ",
" ... upper surface ", " above " etc., for describing such as a device shown in the figure or feature and other devices or spy
The spatial relation of sign.It should be appreciated that space relative terms are intended to comprising the orientation except device described in figure
Outside different azimuth in use or operation.For example, if the device in accompanying drawing is squeezed, it is described as " in other devices
It will be positioned as " under other devices or construction after the device of part or construction top " or " on other devices or construction "
Side " or " under other devices or construction ".Thus, exemplary term " ... top " can include " ... top " and
" in ... lower section " two kinds of orientation.The device can also other different modes positioning (being rotated by 90 ° or in other orientation), and
And respective explanations are made to the relative description in space used herein above.
It is shown in Figure 1, according to first embodiment of the present utility model, there is provided a kind of rotor, in the present embodiment
Rotor include rotor core 10 and the magnetic steel component that is embedded in rotor core 10, the magnetic steel component includes multiple magnet steel
Group, magnet steel group include two pieces of cross sections in the curved big magnet steel 30 of the small magnet steel 40 of in-line and one piece of cross section, two pieces
Small magnet steel 40 is symmetricly set on the both sides of big magnet steel 30.
Due to the magnetic steel component in the present embodiment be by symmetrically arranged two pieces of cross sections in in-line small magnet steel 40 with
And the curved big magnet steel 30 in one piece of cross section forms, for rotor of the prior art, when rotor height
When rotating speed is run, the punching for forming rotor core is subjected to centrifugal force reduction caused by high rotating speed, reduces and forms rotor core
Maximum stress of 10 punching caused by high speed rotates, further increase the structural strength of such rotor, increase
The reliability of rotor high-speed cruising.
Found by design experiment, using the rotor punching of the rotor of the present embodiment, the maximum suffered by punching can be made
Equivalent stress reduces by 30~50MPa, substantially increases the operational reliability of rotor.
It should be noted that the big magnet steel 30 and small magnet steel 40 in the present embodiment are two structures comparatively, volume
It is big for big magnet steel 30, small volume for small magnet steel 40.
Preferably, the cross section of the big magnet steel 30 in the present embodiment is in circular arc, simple in construction, is easy to implement.
For the ease of mounting magnetic steel component, multiple magnet steel grooves 11, big magnetic are provided with the rotor core 10 in the present embodiment
Steel 30 and small magnet steel 40 are arranged in magnet steel groove 11 correspondingly.Magnetic steel component in the present embodiment is four, four magnet steel
Component is sequentially arranged along the circumference of rotor core 10 respectively.
The width Wm in circumference of the big magnet steel 30 along rotor core 10 in the present embodiment is small magnet steel 40 along rotor core
1.1~1.5 times of width Hm in 10 circumference, such as 1.2 times.
Big thickness Ws radially of the magnet steel 30 along rotor core 10 be small magnet steel 40 along rotor core 10 radially
1.0~1.1 times of thickness Hs.Wherein, big magnet steel 30 along rotor core thickness Ws radially for internal diameter Ri and external diameter Ro it
Difference.
The thickness of the big outward flange of magnet steel 30 to the outside of rotor core 10 is 8mm~12mm, i.e. R-Ro span is
8~12mm.Such as 10mm.
Between the outward flange of big magnet steel 30 and magnet steel groove 11, width is respectively provided between the outward flange of small magnet steel 40 and magnet steel groove 11
The gap 70 for 0.03mm~0.1mm is spent, nonmetallic materials is filled with gap 70, is easy to big magnet steel 30 and small magnet steel 40
It is fixed in magnet steel groove 11.Preferably, nonmetallic materials are epoxy pouring sealant or magnet steel glue or rubber in the present embodiment.
It is provided with magnetic conduction bridge 50 between two neighboring magnet steel groove 11, the width in circumference of the magnetic conduction bridge 50 along rotor core 10
For 0.5mm~3mm, such as 1mm, 2mm etc..
It is provided with magnetic bridge 60 between the outward flange of magnet steel groove 11 and rotor core 10, magnetic bridge 60 is along rotor core 10
Width radially is 1mm~2mm, such as 1.5mm.
Referring again to shown in Fig. 1, when the axis of rotor core 10 is with plane-parallel, small magnet steel 40 with perpendicular to horizontal plane
Included angle A between straight line is 60 °~70 °, such as 65 °.
Preferably, the rotor core 10 in the present embodiment is formed using silicon steel sheet compacting.
In a kind of embodiment of the present utility model, big magnet steel 30 and small magnet steel 40 use neodymium iron boron or Ferrite Material
It is made.
In another embodiment of the present utility model, small magnet steel 40 is made using Ferrite Material, big magnet steel 30
It is made using neodymium iron boron.
Preferably, the rotor in the present embodiment also includes rotating shaft 20, and rotor core 10 is set in rotating shaft 20, rotating shaft
20 be magnetic conductive axis or non-magnetic axle.
As shown in figure 1, the center of circle of circular section of the big magnet steel 30 in the present embodiment weighs with the axle center of rotor core 10
Close.
During design, the position of magnet steel 30 broad in the middle is arranged first, its own is symmetrical on quadrant symmetrical center line,
Its external diameter Ro is 8~12mm apart from the external diameter R of rotor core 10 distances, i.e., R-Ro span is 8~12mm, its width Wm
Span is that (1.1~1.5) Hm, Ws thickness (Ro-Ri) span is (1.0~1.1) Hs；
Then set both sides small magnet steel 40, this two pieces small size of magnet steel 40 is the same, and on quadrant it is symmetrical in
Heart line is symmetrical, and the angle of itself and vertical curve is designated as A, and A spans are 60 °~70 °.
The width of magnetic bridge 60 typically may be configured as 0.5~3mm, the typically settable 1~2mm of the width of magnetic conduction bridge 50, ensure
It is appropriate to increase magnetic bridge 60 and the width of magnetic conduction bridge 50 in the case of magnetism isolating effect, rotor strength can be increased, improve rotor operation
Maximum speed.
For the motor of high-power higher rotation speed, silicon steel material is generally appropriate from high strength silicon steel sheet；For small
The motor of power higher rotation speed generally can meet service requirement from the silicon steel sheet of regular tenacity.
Rotating shaft 20 can be magnetic conductive axis, or non-magnetic axle；
Big magnet steel 30 and small magnet steel 40 can be neodymium iron boron or Ferrite Material；Or big magnet steel 30 is NdFeB material,
And narrowing toward each end magnet steel 40 is Ferrite Material.
Above-mentioned small magnet steel 40 and big magnet steel 30 are fully enclosed in magnet steel groove 11, magnet steel and magnet steel groove 11 be unilateral 0.03~
0.1mm fit-up gap 70, can be by epoxy pouring sealant or magnet steel glue or rubber between magnet steel and silicon steel sheet in assembling process
Gap carry out embedding, solidify magnet steel, magnet steel loosens when preventing high-speed cruising, influences rotor dynamic balancing etc..In addition, magnet steel
It can be solidified by rotor dipping lacquer.
After the magnet steel groove 11 of the both sides of rotor core 10 loads magnet steel, still there is part not to be full of by magnet steel, the part is claimed
Be air groove, or air magnet isolation tank is mainly used to reduce magnet steel leakage field, improves magnet steel utilization rate.The slowspeed machine air groove
Material can be typically not filled with, but for high-speed electric expreess locomotive, it usually needs non magnetic light material, such as epoxy glue, rubber etc. are inserted,
For fixing magnet steel.
As shown in Fig. 2 according to second embodiment of the present utility model, there is provided a kind of rotor, in the present embodiment
Rotor and first embodiment it is basically identical, except that, the big magnet steel 30 in the present embodiment is eccentric magnet steel, big magnetic
The center of circle of the circular section of steel 30 and the axle center of rotor core 10 are misaligned, are exactly the utility model as offset=0
In optimal embodiment, i.e. first embodiment.
According to another aspect of the present utility model, there is provided a kind of motor, the motor refer in particular to built-in high-speed permanent magnetic
Motor, the motor include rotor, and rotor is the rotor in above-described embodiment.
Preferred embodiment of the present utility model is the foregoing is only, is not limited to the utility model, for this
For the technical staff in field, the utility model can have various modifications and variations.It is all in the spirit and principles of the utility model
Within, any modification, equivalent substitution and improvements made etc., it should be included within the scope of protection of the utility model.
Claims (17)
1. a kind of rotor, it is characterised in that including rotor core (10) and the magnetic being embedded in the rotor core (10)
Steel component, the magnetic steel component include multiple magnet steel groups, and the magnet steel group includes the small magnet steel that two pieces of cross sections are in in-line
(40) and the curved big magnet steel (30) in one piece of cross section, two pieces of small magnet steel (40) are symmetricly set on the big magnet steel
(30) both sides.
2. rotor according to claim 1, it is characterised in that the cross section of the big magnet steel (30) is in circular arc.
3. rotor according to claim 1, it is characterised in that be provided with multiple magnet steel on the rotor core (10)
Groove (11), the big magnet steel (30) and the small magnet steel (40) are arranged in the magnet steel groove (11) correspondingly.
4. rotor according to claim 1, it is characterised in that the big magnet steel (30) is along the rotor core (10)
Circumference on width be 1.1~1.5 times of the small magnet steel (40).
5. rotor according to claim 1, it is characterised in that the big magnet steel (30) is along the rotor core (10)
Thickness radially be 1.0~1.1 times of the small magnet steel (40).
6. rotor according to claim 1, it is characterised in that the outward flange of the big magnet steel (30) and the rotor
Thickness between the outward flange of iron core (10) is 8mm~12mm.
7. rotor according to claim 3, it is characterised in that be provided between the two neighboring magnet steel groove (11)
Magnetic conduction bridge (50), the width in circumference of the magnetic conduction bridge (50) along the rotor core (10) is 0.5mm~3mm.
8. rotor according to claim 3, it is characterised in that the magnet steel groove (11) and the rotor core (10)
Outward flange between be provided with magnetic bridge (60), width radially of the magnetic bridge (60) along the rotor core (10) is
1mm~2mm.
9. rotor according to claim 1, it is characterised in that rotor core (10) axis and plane-parallel
When, the small magnet steel (40) and the angle between the straight line of horizontal plane are 60 °~70 °.
10. rotor according to claim 1, it is characterised in that the rotor core (10) is suppressed using silicon steel sheet
Form.
11. rotor according to claim 3, it is characterised in that the outward flange of the big magnet steel (30) and the magnetic
Between steel tank (11), be respectively provided between the outward flange of the small magnet steel (40) and the magnet steel groove (11) width for 0.03mm~
0.1mm gap (70), the gap (70) is interior to be filled with nonmetallic materials.
12. rotor according to claim 11, it is characterised in that the nonmetallic materials are epoxy pouring sealant or magnetic
Steel glue or rubber.
13. rotor according to claim 1, it is characterised in that the big magnet steel (30) and the small magnet steel (40)
It is made using neodymium iron boron or Ferrite Material.
14. rotor according to claim 1, it is characterised in that the small magnet steel (40) uses Ferrite Material system
Form, the big magnet steel (30) is made using neodymium iron boron.
15. rotor according to claim 1, it is characterised in that the rotor also includes rotating shaft (20), described
Rotor core (10) is set in the rotating shaft (20), and the rotating shaft (20) is magnetic conductive axis or non-magnetic axle.
16. the rotor according to any one of claim 1 to 15, it is characterised in that the arc of the big magnet steel (30)
The center of circle of shape cross section and the axis coinciding or misaligned of the rotor core (10).
17. a kind of motor, including rotor, it is characterised in that the rotor is any one of claim 1 to 16 institute
The rotor stated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720958827.2U CN207039321U (en) | 2017-08-01 | 2017-08-01 | Rotor and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720958827.2U CN207039321U (en) | 2017-08-01 | 2017-08-01 | Rotor and motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207039321U true CN207039321U (en) | 2018-02-23 |
Family
ID=61474116
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720958827.2U Active CN207039321U (en) | 2017-08-01 | 2017-08-01 | Rotor and motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207039321U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107394920A (en) * | 2017-08-01 | 2017-11-24 | 珠海格力节能环保制冷技术研究中心有限公司 | Rotor and motor |
-
2017
- 2017-08-01 CN CN201720958827.2U patent/CN207039321U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107394920A (en) * | 2017-08-01 | 2017-11-24 | 珠海格力节能环保制冷技术研究中心有限公司 | Rotor and motor |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107394920A (en) | Rotor and motor | |
| CN202424345U (en) | Permanent magnet motor with mixed magnetic poles | |
| CN203911704U (en) | Motor and compressor having motor | |
| CN102570647A (en) | Hybrid excitation flux reversal motor | |
| CN109167502B (en) | Permanent magnet auxiliary cage barrier rotor synchronous motor | |
| CN102969812B (en) | Modulation ring rotor based on magnetic shielding principle | |
| CN106787565A (en) | Anti- salient pole permanent magnet reluctance motor | |
| CN204271774U (en) | A kind of high-speed permanent magnetic electro spindle inner electric machine rotor punching structure | |
| CN104659940A (en) | Rotor of rotating motor | |
| CN113300515B (en) | Disc type axial magnetic field permanent magnet brushless motor structure containing tangential magnet structure and method thereof | |
| CN109245468B (en) | Birotor synchronous motor adopting permanent magnet auxiliary cage barrier rotor | |
| CN102593974A (en) | Hybrid excitation switched flux motor | |
| CN207039321U (en) | Rotor and motor | |
| CN204465184U (en) | A kind of rotary motor rotor | |
| CN103368292A (en) | Novel structure of rotor punching sheet of permanent magnet motor | |
| US11695305B2 (en) | Rotor structure, permanent magnet auxiliary synchronous reluctance motor, and electric vehicle | |
| CN208767862U (en) | A kind of few permanent magnet high-performance permanent magnet reluctance-synchronous machine | |
| CN206481197U (en) | Anti- salient pole permanent magnet reluctance motor | |
| CN202565054U (en) | Alternating current permanent magnet generator rotor | |
| CN206948063U (en) | Low torque fluctuates built-in permanent magnet motor rotor | |
| CN115940455A (en) | Novel built-in high-speed permanent magnet motor rotor structure | |
| CN202524195U (en) | Same-polarity type rotor of rotary motor | |
| CN201490788U (en) | Rotor of permanent magnet motor | |
| CN214314991U (en) | Topological structure of embedded composite permanent magnet type double-stator brushless motor | |
| CN210350986U (en) | Birotor permanent magnet synchronous reluctance motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |