CN104779727B - A kind of surface-mounted permanent magnet machine rotor and motor - Google Patents
A kind of surface-mounted permanent magnet machine rotor and motor Download PDFInfo
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- CN104779727B CN104779727B CN201510209051.XA CN201510209051A CN104779727B CN 104779727 B CN104779727 B CN 104779727B CN 201510209051 A CN201510209051 A CN 201510209051A CN 104779727 B CN104779727 B CN 104779727B
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- permanent magnet
- wedge
- radial direction
- direction inserts
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Abstract
The present invention relates to a kind of surface-mounted permanent magnet machine rotor, it includes permanent magnet, iron core, wedge and radial direction inserts, the inner circle of permanent magnet be radially provided with it is one or more axially through the wedge groove II matched with groove I, wedge is placed in groove I and wedge groove II, the big end of wedge is placed in groove I, the wedge is wedge section with the contact-segment of wedge groove II, the radical length of the length more than or equal to wedge groove II of wedge section, radial direction inserts is arranged between permanent magnet and iron core, and one end of radial direction inserts is big end inwardly stepped.The present invention can make the sheath can just reach elastic conjunction at normal temperatures, radial direction inserts is provided between permanent magnet and iron core simultaneously, so as to constrain permanent magnet excessive radial displacement will not be produced when high speed rotates, also there is permanent magnet when preventing motor from running at high speed to be subjected to displacement on iron core circumference for wedge and radial direction inserts, it is ensured that effective transmission of motor torque.The invention further relates to a kind of motor comprising above-mentioned surface-mounted rotor.
Description
Technical field
The present invention relates to machine field, especially a kind of surface-mounted permanent magnet machine rotor and motor.
Background technology
In the prior art, the position difference according to the rotor permanent magnet poles of magneto on rotor includes：Surface-mount type,
The various forms such as embedded and Lundell.The manufacturing process of wherein surface-mounted rotor structure is simple, and low cost is widely used, right
In high-speed permanent magnet motor, some rotors use surface-mount type rotor, its rotor generally comprise sheath, permanent magnet,
Iron core, rotating shaft, end plate, in rotating shaft, permanent magnet is located at iron core outside to iron core sleeve, and sheath is located at permanent magnet radial outside, encases
Permanent magnet, end plate is located at permanent magnet axial direction both sides, and in order to reduce eddy-current loss and improve the intensity of sheath, sheath is generally non-gold
Category, because the thermal coefficient of expansion of non-metallic material is smaller, it is impossible to carry out elastic conjunction with hot jacket method, when magneto rotating speed
Gao Shi, permanent magnet and non metallic sheath can be separated, and cause rotor cisco unity malfunction.
The content of the invention
It is an object of the invention to overcome disadvantages described above to provide a kind of guarantee rotor structure stable performance, simple table is installed
Mounted permanent magnet machine rotor and motor.
The technical scheme is that, a kind of surface-mounted permanent magnet machine rotor, it includes sheath, permanent magnet, iron core, end
Plate, equally distributed two or more than two monolithic permanent magnet is located at iron core outside after forming set of permanent magnets, and sheath is located at forever
Magnet radial outside encases permanent magnet, and end plate is located at permanent magnet axial direction both sides, and also including wedge and radial direction inserts, the wedge is
Magnetic conductor, the iron core is cylindrical be radially provided with it is one or more axially through groove I, permanent magnet inner circle along footpath
To be provided with it is one or more axially through the wedge groove II matched with groove I, the wedge is placed in groove I and wedge groove
In II, the big end of the wedge is placed in groove I, and the wedge is wedge section with the contact-segment of wedge groove II, and the length of wedge section is big
In or equal to wedge groove II radical length, the radial direction inserts is arranged between permanent magnet and iron core, one end of radial direction inserts
It is fixed together with permanent magnet, the other end of radial direction inserts is big end inwardly stepped, and the position matched in iron core is provided with
The step type slot matched with radial direction inserts, the other end of radial direction inserts is movably placed in step type slot.
Preferably, the radial direction inserts is big end T-shaped shape inwardly, and the radial direction inserts small end is placed in monolithic permanent magnet
Portion, top contact with monolithic permanent magnet of the radial direction inserts is zigzag.
Preferably, the radial direction inserts is I-shaped shape, and described radial direction inserts one end is placed in monolithic permanent magnet middle part, the other end
It is placed in the iron core slot for matching.
Preferably, the radial direction inserts is big end L-type shape inwardly, and the radial direction inserts small end is placed in the both sides of wedge,
Top contact with permanent magnetism body side surface of the radial direction inserts is zigzag.
In order to alleviate the pressure of sheath, also including articulamentum, between the articulamentum is arranged between permanent magnet and iron core
In gap.
Preferably, the articulamentum is weld layer.
Preferably, the articulamentum is tack coat.
The invention further relates to a kind of motor, it includes surface-mounted permanent magnet machine rotor, the surface-mounted permanent magnet machine rotor
It is surface-mounted permanent magnet machine rotor described above.
The method have the benefit that, due to wedge is placed in groove I and wedge groove II, when rotor rotates at a high speed,
Permanent magnet is moved outwards under the action of the centrifugal force, so as to cause the width of wedge groove II increase, while wedge be also moved out by
The filling of wedge groove II and self-locking, can make sheath just to reach elastic conjunction at normal temperatures, at the same permanent magnet and iron core it
Between be provided with radial direction inserts so that constraining permanent magnet will not produce excessive radial displacement when high speed rotates, wedge and radially embedding
Also there is part permanent magnet when preventing motor from running at high speed to be subjected to displacement on iron core circumference, it is ensured that effective biography of motor torque
Form stable when passing, and operating rotor, motor operation smooth performance, high working efficiency.
Brief description of the drawings
Fig. 1 is the structural representation of embodiment of the present invention 1；
Fig. 2 is the structural representation of embodiment of the present invention 2；
Fig. 3 is the structural representation of embodiment of the present invention 3.
Specific embodiment
Below in conjunction with the drawings and specific embodiments, the present invention will be further described.
Embodiment 1：Referring to the drawings 1, a kind of surface-mounted permanent magnet machine rotor, it include sheath 1, permanent magnet 2, iron core 5, end
Plate, equally distributed two or more than two monolithic permanent magnet 2 is located at the outside of iron core 5 after forming set of permanent magnets, and sheath 1 is located at
The radial outside of permanent magnet 2 encases permanent magnet 2, and end plate is located at the axial both sides of permanent magnet 2, also including wedge 3 and radial direction inserts 4, institute
Wedge 3 is stated for magnetic conductor, the iron core 5 is cylindrical be radially provided with it is one or more axially through groove I, in permanent magnet
2 inner circle be radially provided with it is one or more axially through the wedge groove II matched with groove I, the wedge 3 puts
In in groove I and wedge groove II, the big end of the wedge 3 is placed in groove I, and the wedge 3 is wedge section with the contact-segment of wedge groove II,
The radical length of the length more than or equal to wedge groove II of wedge section, the radial direction inserts 4 be arranged on permanent magnet 2 and iron core 5 it
Between, the radial direction inserts 4 is I-shaped shape, and the one end of radial direction inserts 4 is placed in the middle part of monolithic permanent magnet 2, in the position that iron core 5 matches
The T-slot matched with the other end of radial direction inserts 4 is provided with, the other end of radial direction inserts is movably placed in T-slot, in order to alleviate shield
The pressure of set 1, also including articulamentum 6, the articulamentum 6 is arranged in the gap between permanent magnet 2 and iron core 5, the connection
Layer 6 is weld layer.
Embodiment 2：Referring to the drawings 2, a kind of surface-mounted permanent magnet machine rotor, except radial direction inserts 4 is big end inwardly T-shaped
Shape, the small end of radial direction inserts 4 is placed in the middle part of monolithic permanent magnet 2, and the small end of radial direction inserts 4 is with the contact of monolithic permanent magnet 2
It is consistent with embodiment 1 outside zigzag.
Embodiment 3：Referring to the drawings 3, a kind of surface-mounted permanent magnet machine rotor, the L-type except radial direction inserts 4 for big end inwardly
Shape, the small end of radial direction inserts 4 is placed in the both sides of wedge 3, and the top of the radial direction inserts 4 is with the contact of the side of permanent magnet 2
It is consistent with embodiment 1 outside zigzag.
Embodiment 4：A kind of surface-mounted permanent magnet machine rotor, it is consistent with embodiment 1 in addition to articulamentum 6 is tack coat.
The invention further relates to a kind of motor, it includes surface-mounted permanent magnet machine rotor, the surface-mounted permanent magnet machine rotor
It is surface-mounted permanent magnet machine rotor described above.
Claims (8)
1. a kind of surface-mounted permanent magnet machine rotor, it includes sheath, permanent magnet, iron core, end plate, equally distributed two pieces or two pieces
Monolithic permanent magnet above is located at iron core outside after forming set of permanent magnets, and sheath encases permanent magnet positioned at permanent magnet radial outside,
End plate is located at permanent magnet axial direction both sides, it is characterised in that also including wedge and radial direction inserts, and the wedge is magnetic conductor, described
Iron core is cylindrical be radially provided with it is one or more axially through groove I, be radially provided with one in the inner circle of permanent magnet
Or it is more than one axially through the wedge groove II matched with groove I, the wedge is placed in groove I and wedge groove II, described
The big end of wedge is placed in groove I, and the wedge is wedge section with the contact-segment of wedge groove II, and the length of wedge section is more than or equal to oblique
The radical length of wedge groove II, the radial direction inserts is arranged between permanent magnet and iron core, and one end and the permanent magnet of radial direction inserts are consolidated
It is scheduled on together, the other end of radial direction inserts is big end inwardly stepped, and the position matched in iron core is provided with and radial direction inserts
The step type slot for matching, the other end of radial direction inserts is movably placed in step type slot.
2. a kind of surface-mounted permanent magnet machine rotor according to claim 1, it is characterised in that the radial direction inserts is big end
T-shaped shape inwardly, the radial direction inserts small end is placed in monolithic permanent magnet middle part, top and the monolithic permanent magnet of the radial direction inserts
Contact be zigzag.
3. a kind of surface-mounted permanent magnet machine rotor according to claim 1, it is characterised in that the radial direction inserts is I-shaped
Shape, described radial direction inserts one end is placed in monolithic permanent magnet middle part, and the other end is placed in the iron core slot for matching.
4. a kind of surface-mounted permanent magnet machine rotor according to claim 1, it is characterised in that the radial direction inserts is big end
L-type shape inwardly, the radial direction inserts small end is placed in the both sides of wedge, the top of the radial direction inserts and connecing for permanent magnetism body side surface
It is zigzag to touch.
5. a kind of surface-mounted permanent magnet machine according to claim 1 or claim 2 or claim 3 or claim 4
Rotor, it is characterised in that also including articulamentum, the articulamentum is arranged in the gap between permanent magnet and iron core.
6. a kind of surface-mounted permanent magnet machine rotor according to claim 5, it is characterised in that the articulamentum is welding
Layer.
7. a kind of surface-mounted permanent magnet machine rotor according to claim 5, it is characterised in that the articulamentum is to bond
Layer.
8. a kind of motor, it includes surface-mounted permanent magnet machine rotor, it is characterised in that the surface-mounted permanent magnet machine rotor is upper
State surface-mounted permanent magnet machine rotor of the claim 1 to claim 7 described in any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510209051.XA CN104779727B (en) | 2015-04-29 | 2015-04-29 | A kind of surface-mounted permanent magnet machine rotor and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510209051.XA CN104779727B (en) | 2015-04-29 | 2015-04-29 | A kind of surface-mounted permanent magnet machine rotor and motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104779727A CN104779727A (en) | 2015-07-15 |
| CN104779727B true CN104779727B (en) | 2017-06-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510209051.XA Active CN104779727B (en) | 2015-04-29 | 2015-04-29 | A kind of surface-mounted permanent magnet machine rotor and motor |
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| CN (1) | CN104779727B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106300832B (en) * | 2016-09-30 | 2018-12-28 | 湘潭电机股份有限公司 | A kind of assembly tooling of surface permanent magnetic rotor and assembly method of inclined wedge expanding structure |
| CN107579615A (en) * | 2017-10-30 | 2018-01-12 | 南京磁谷科技有限公司 | A kind of interpolar filling block arrangement of durface mounted permanent magnet rotor |
| CN109391057B (en) * | 2018-09-27 | 2021-05-28 | 湖南湘电动力有限公司 | Magnetic ring modular rotor and motor |
| CN113854756A (en) * | 2021-11-04 | 2021-12-31 | 管保顺 | Connector capable of preventing solid wood jointed board from bending deformation |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006008964A1 (en) * | 2004-07-16 | 2006-01-26 | Mitsuba Corporation | Magnet fixing structure for electric rotating machine |
| CN101361248A (en) * | 2005-08-25 | 2009-02-04 | 电源组国际公司 | A device and method to clamp and lock permanent magnets and improve cooling within a rotating electrical machine |
| CN103259362A (en) * | 2013-06-05 | 2013-08-21 | 湘潭电机股份有限公司 | Motor base and motor with same |
| CN203278435U (en) * | 2013-04-10 | 2013-11-06 | 江西特种电机股份有限公司 | Novel magnetic steel surface mounted permanent magnet motor rotor |
| CN104518589A (en) * | 2013-09-27 | 2015-04-15 | 安徽明腾永磁机电设备有限公司 | Middle-large size high speed rare-earth permanent magnet motor magnetic steel locking structure |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0919091A (en) * | 1995-06-30 | 1997-01-17 | Fanuc Ltd | Rotor for synchronous motor |
-
2015
- 2015-04-29 CN CN201510209051.XA patent/CN104779727B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006008964A1 (en) * | 2004-07-16 | 2006-01-26 | Mitsuba Corporation | Magnet fixing structure for electric rotating machine |
| CN101361248A (en) * | 2005-08-25 | 2009-02-04 | 电源组国际公司 | A device and method to clamp and lock permanent magnets and improve cooling within a rotating electrical machine |
| CN203278435U (en) * | 2013-04-10 | 2013-11-06 | 江西特种电机股份有限公司 | Novel magnetic steel surface mounted permanent magnet motor rotor |
| CN103259362A (en) * | 2013-06-05 | 2013-08-21 | 湘潭电机股份有限公司 | Motor base and motor with same |
| CN104518589A (en) * | 2013-09-27 | 2015-04-15 | 安徽明腾永磁机电设备有限公司 | Middle-large size high speed rare-earth permanent magnet motor magnetic steel locking structure |
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| Publication number | Publication date |
|---|---|
| CN104779727A (en) | 2015-07-15 |
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