CN104779727A - Surface-mounted permanent magnet motor rotor and motor - Google Patents
Surface-mounted permanent magnet motor rotor and motor Download PDFInfo
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- CN104779727A CN104779727A CN201510209051.XA CN201510209051A CN104779727A CN 104779727 A CN104779727 A CN 104779727A CN 201510209051 A CN201510209051 A CN 201510209051A CN 104779727 A CN104779727 A CN 104779727A
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- permanent magnet
- wedge
- radial inserts
- iron core
- inserts
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Abstract
The invention relates to a surface-mounted permanent magnet motor rotor. The surface-mounted permanent magnet motor rotor comprises permanent magnets, an iron core, tapered wedges and radial inserts, wherein the inner circle of the permanent magnets is provided with one or more axially through tapered wedge groove II matched with grooves I in the radial direction; the tapered wedges are arranged in the grooves I and the tapered wedge grooves II; the big ends of the tapered wedges are arranged in the grooves I; the sections, making contact with the tapered wedge grooves II, of the tapered wedges are tapered wedge sections; the length of the tapered wedge sections is greater than or equal to the radial length of the tapered wedge grooves II; the radial inserts are arranged between the permanent magnets and the iron core; one ends of the radial inserts are in a step shape with the big ends inwards. The surface-mounted permanent magnet motor rotor enables a sheath to achieve interference assembly at normal temperature; meanwhile, the radial inserts are arranged between the permanent magnets and the iron core, so that the permanent magnets are restrained to generate too large radial displacement when rotating at a high speed, the tapered wedges and the radial inserts also can prevent the permanent magnets from shifting on the circumference of the iron core when a motor rotates at a high speed, and effective transmission of torque of the motor is ensured. The invention further relates to the motor comprising the surface-mounted permanent magnet motor 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 prior art, comprise in epitrochanterian position difference according to the rotor permanent magnet poles of magneto: the various forms such as surface-mount type, embedded and Lundell.Wherein the manufacturing process of surface-mounted rotor structure is simple, cost is low, be widely used, for high-speed permanent magnet motor, some rotors adopt surface-mount type rotor, its rotor generally comprises sheath, permanent magnet, iron core, rotating shaft, end plate, iron core sleeve is in rotating shaft, permanent magnet is positioned at outside iron core, sheath is positioned at permanent magnet radial outside, encase permanent magnet, end plate is positioned at the axial both sides of permanent magnet, in order to reduce the intensity of eddy current loss and raising sheath, sheath is generally nonmetal, because the thermal coefficient of expansion of non-metallic material is smaller, elastic conjunction cannot be carried out by hot jacket method, when magneto rotating speed height, permanent magnet can be separated with non metallic sheath, cause rotor cisco unity malfunction.
Summary of the invention
The object of the invention is to overcome above defect and the stable performance of a kind of guarantee rotor structure is provided, simple surface-mounted permanent magnet machine rotor and motor are installed.
Technical scheme of the present invention is, a kind of surface-mounted permanent magnet machine rotor, it comprises sheath, permanent magnet, iron core, end plate, two or more than two monolithic permanent magnet equally distributed is formed after set of permanent magnets and is positioned at outside iron core, sheath is positioned at permanent magnet radial outside and encases permanent magnet, end plate is positioned at the axial both sides of permanent magnet, also comprise wedge and radial inserts, described wedge is magnetic conductor, described iron core cylindrical is radially provided with the through groove of one or more axis I, the through wedge groove II matched with groove I of one or more axis is radially provided with in the inner circle of permanent magnet, described wedge is placed in groove I and wedge groove II, the large end of described wedge is placed in groove I, described wedge and wedge groove II contact-segment are wedge section, the length of wedge section is more than or equal to the radical length of wedge groove II, described radial inserts is arranged between permanent magnet and iron core, one end and the permanent magnet of radial inserts are fixed together, the other end of radial inserts is large end inwardly stepped, the step type slot matched with radial inserts is provided with in the position that iron core matches, the other end of radial inserts is movably placed in step type slot.
Preferably, described radial inserts is large end T-shaped shape inwardly, and described radial inserts small end is placed in the middle part of monolithic permanent magnet, and the top of described radial inserts and the contact of monolithic permanent magnet are zigzag.
Preferably, described radial inserts is I-shaped shape, and described radial inserts one end is placed in the middle part of monolithic permanent magnet, and the other end is placed in the iron core slot that matches.
Preferably, described radial inserts is large end L-type shape inwardly, and described radial inserts small end is placed in the both sides of wedge, and the top of described radial inserts and the contact of permanent magnet side are zigzag.
In order to alleviate the pressure of sheath, also comprise articulamentum, described articulamentum is arranged in the gap between permanent magnet and iron core.
Preferably, described articulamentum is weld layer.
Preferably, described articulamentum is tack coat.
The invention still further relates to a kind of motor, it comprises surface-mounted permanent magnet machine rotor, and described surface-mounted permanent magnet machine rotor is surface-mounted permanent magnet machine rotor described above.
Advantageous Effects of the present invention is, owing to wedge to be placed in groove I and wedge groove II, when rotor high-speed rotates, permanent magnet occurs to move outside radial direction under centrifugal action, thus cause wedge groove II width to increase, wedge also outwards moves and is filled and self-locking by wedge groove II simultaneously, sheath can be made just can to reach elastic conjunction at normal temperatures, between permanent magnet and iron core, be provided with radial inserts simultaneously, thus constraint permanent magnet can not produce excessive radial displacement when High Rotation Speed, wedge and radial inserts also have permanent magnet when preventing motor from running up and are circumferentially subjected to displacement at iron core, ensure that effective transmission of motor torque, and form stable when rotor is operated, motor runnability is steady, operating efficiency is high.
Accompanying drawing explanation
Fig. 1 is the invention process example 1 structural representation;
Fig. 2 is the invention process example 2 structural representation;
Fig. 3 is the invention process example 3 structural representation.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention will be further described.
Embodiment 1: with reference to accompanying drawing 1, a kind of surface-mounted permanent magnet machine rotor, it comprises sheath 1, permanent magnet 2, iron core 5, end plate, be positioned at outside iron core 5 after two or more than two monolithic permanent magnet 2 equally distributed forms set of permanent magnets, sheath 1 is positioned at permanent magnet 2 radial outside and encases permanent magnet 2, end plate is positioned at the axial both sides of permanent magnet 2, also comprise wedge 3 and radial inserts 4, described wedge 3 is magnetic conductor, described iron core 5 cylindrical is radially provided with the through groove of one or more axis I, the through wedge groove II matched with groove I of one or more axis is radially provided with in the inner circle of permanent magnet 2, described wedge 3 is placed in groove I and wedge groove II, the large end of described wedge 3 is placed in groove I, described wedge 3 is wedge section with wedge groove II contact-segment, the length of wedge section is more than or equal to the radical length of wedge groove II, described radial inserts 4 is arranged between permanent magnet 2 and iron core 5, described radial inserts 4 is I-shaped shape, radial inserts 4 one end is placed in the middle part of monolithic permanent magnet 2, the T-slot matched with radial inserts 4 other end is provided with in the position that iron core 5 matches, the other end of radial inserts is movably placed in T-slot, in order to alleviate the pressure of sheath 1, also comprise articulamentum 6, described articulamentum 6 is arranged in the gap between permanent magnet 2 and iron core 5, described articulamentum 6 is weld layer.
Embodiment 2: with reference to accompanying drawing 2, a kind of surface-mounted permanent magnet machine rotor, except radial inserts 4 is large end T-shaped shape inwardly, described radial inserts 4 small end is placed in the middle part of monolithic permanent magnet 2, and the small end of radial inserts 4 and the contact of monolithic permanent magnet 2 are that zigzag is outer all consistent with embodiment 1.
Embodiment 3: with reference to accompanying drawing 3, a kind of surface-mounted permanent magnet machine rotor, except radial inserts 4 is large end L-type shape inwardly, described radial inserts 4 small end is placed in the both sides of wedge 3, and top and the contact of permanent magnet 2 side of described radial inserts 4 are that zigzag is outer all consistent with embodiment 1.
Embodiment 4: a kind of surface-mounted permanent magnet machine rotor, except articulamentum 6 is all consistent with embodiment 1 except tack coat.
The invention still further relates to a kind of motor, it comprises surface-mounted permanent magnet machine rotor, and described surface-mounted permanent magnet machine rotor is surface-mounted permanent magnet machine rotor described above.
Claims (8)
1. a surface-mounted permanent magnet machine rotor, it comprises sheath, permanent magnet, iron core, end plate, two or more than two monolithic permanent magnet equally distributed is formed after set of permanent magnets and is positioned at outside iron core, sheath is positioned at permanent magnet radial outside and encases permanent magnet, end plate is positioned at the axial both sides of permanent magnet, it is characterized in that, also comprise wedge and radial inserts, described wedge is magnetic conductor, described iron core cylindrical is radially provided with the through groove of one or more axis I, the through wedge groove II matched with groove I of one or more axis is radially provided with in the inner circle of permanent magnet, described wedge is placed in groove I and wedge groove II, the large end of described wedge is placed in groove I, described wedge and wedge groove II contact-segment are wedge section, the length of wedge section is more than or equal to the radical length of wedge groove II, described radial inserts is arranged between permanent magnet and iron core, one end and the permanent magnet of radial inserts are fixed together, the other end of radial inserts is large end inwardly stepped, the step type slot matched with radial inserts is provided with in the position that iron core matches, the other end of radial inserts is movably placed in step type slot.
2. a kind of surface-mounted permanent magnet machine rotor according to claim 1, it is characterized in that, described radial inserts is large end T-shaped shape inwardly, and described radial inserts small end is placed in the middle part of monolithic permanent magnet, and the top of described radial inserts and the contact of monolithic permanent magnet are zigzag.
3. a kind of surface-mounted permanent magnet machine rotor according to claim 1, is characterized in that, described radial inserts is I-shaped shape, and described radial inserts one end is placed in the middle part of monolithic permanent magnet, and the other end is placed in the iron core slot that matches.
4. a kind of surface-mounted permanent magnet machine rotor according to claim 1, it is characterized in that, described radial inserts is large end L-type shape inwardly, and described radial inserts small end is placed in the both sides of wedge, and the top of described radial inserts and the contact of permanent magnet side are zigzag.
5., according to claim 1 or claim 2 or claim 3 or a kind of surface-mounted permanent magnet machine rotor according to claim 4, it is characterized in that, also comprise articulamentum, described 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, is characterized in that, described articulamentum is weld layer.
7. a kind of surface-mounted permanent magnet machine rotor according to claim 5, is characterized in that, described articulamentum is tack coat.
8. a motor, it comprises surface-mounted permanent magnet machine rotor, it is characterized in that, described surface-mounted permanent magnet machine rotor is the surface-mounted permanent magnet machine rotor of the claims 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 true CN104779727A (en) | 2015-07-15 |
| CN104779727B 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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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106300832A (en) * | 2016-09-30 | 2017-01-04 | 湘潭电机股份有限公司 | The surface permanent magnetic rotor assembly tooling of a kind of wedge expanding structure and assembly method |
| 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 |
| CN109391057A (en) * | 2018-09-27 | 2019-02-26 | 湖南湘电动力有限公司 | A kind of magnet 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 (6)
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| JPH0919091A (en) * | 1995-06-30 | 1997-01-17 | Fanuc Ltd | Rotor for synchronous motor |
| 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 |
-
2015
- 2015-04-29 CN CN201510209051.XA patent/CN104779727B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0919091A (en) * | 1995-06-30 | 1997-01-17 | Fanuc Ltd | Rotor for synchronous motor |
| 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 |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106300832A (en) * | 2016-09-30 | 2017-01-04 | 湘潭电机股份有限公司 | The surface permanent magnetic rotor assembly tooling of a kind of wedge expanding structure and assembly method |
| 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 |
| CN109391057A (en) * | 2018-09-27 | 2019-02-26 | 湖南湘电动力有限公司 | A kind of magnet 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104779727B (en) | 2017-06-06 |
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