CN104779725B - Surface-mounted permanent magnet motor rotor and motor - Google Patents
Surface-mounted permanent magnet motor rotor and motor Download PDFInfo
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- CN104779725B CN104779725B CN201510209045.4A CN201510209045A CN104779725B CN 104779725 B CN104779725 B CN 104779725B CN 201510209045 A CN201510209045 A CN 201510209045A CN 104779725 B CN104779725 B CN 104779725B
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- permanent magnet
- radial direction
- direction inserts
- iron core
- articulamentum
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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 and radial inserts, wherein the permanent magnets include two or more permanent magnets I and at least one permanent magnet II; tapered wedge tapers formed on the two lateral faces of each permanent magnet II are small tapers which are outward in the radial direction; the radial inserts are arranged between the permanent magnets and an iron core; one ends of the radial inserts are fixed to the permanent magnets; the other ends of the radial inserts are in a step shape with the big ends facing inwards. As the rotor is provided with the permanent magnets II, the tapered wedges formed on the two lateral faces of each permanent magnet II are the small tapers which are outward in the radial direction, and the radial inserts are arranged between the permanent magnets and the iron core, when the rotor rotates at a high speed, the permanent magnets II moves outwards in the radial direction under action of centrifugal force to fill the gaps between the adjacent permanent magnets I and to be locked by themselves, a sheath can achieve interference assembly at normal temperature, the radial inserts ensure effective transmission of torque of a motor, and the operation performance of the motor is stable. The invention further relates to the motor comprising the 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, 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 adopt 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, due to the thermal coefficient of expansion of non-metallic material it is smaller, it is impossible to elastic conjunction is carried out 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 permanent magnet, and the permanent magnet includes
Permanent magnet I and permanent magnet II, the permanent magnet includes two or more than two permanent magnet I and at least one piece permanent magnet II, institute
State permanent magnet II two sides formed wedge taper be conelet radially outward, the two piece permanent magnets adjacent with permanent magnet II
I wedge matches in both sides wedge with permanent magnet II respectively, and also including radial direction inserts, the radial direction inserts is arranged on forever
Between magnet and iron core, one end and the permanent magnet of radial direction inserts are fixed together, and the other end of radial direction inserts is big end inwardly
Stepped, the position matched in iron core is provided with the step type slot matched with radial direction inserts, the other end activity of radial direction inserts
It is placed in step type slot.
Preferably, the quantity of the permanent magnet II is symmetrical arranged for two pieces.
Preferably, the permanent magnet I and permanent magnet II are alternately arranged setting.
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, the top of the radial direction inserts is the flank of tooth for matching with the contact surface of monolithic permanent magnet.
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 to hold L-type shape inwardly greatly, top and the side of permanent magnet II of the radial direction inserts
Between contact surface be the flank of tooth for matching.
Preferably, be provided with monodentate face tooth bar between radial direction inserts and permanent magnet I, monodentate face tooth bar and the side of permanent magnet I it
Between contact surface be the flank of tooth for matching.
Preferably, the radial direction inserts is to hold L-type shape inwardly greatly, top and the side of permanent magnet I of the radial direction inserts
Between contact surface be the flank of tooth for matching.
Preferably, monodentate face tooth bar, monodentate face tooth bar and the side of permanent magnet II are provided between radial direction inserts and permanent magnet II
Between contact surface be the flank of tooth for matching.
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
For surface-mounted permanent magnet machine rotor described above.
The method have the benefit that：Permanent magnet II is provided with rotor, the two sides formation of permanent magnet II
Wedge be conelet radially outward, and radial direction inserts is provided between permanent magnet and iron core, when rotor rotates at a high speed, permanent magnet II exists
Occur to be moved outwards the space filling and self-locking by between adjacent permanent magnet I under centrifugal action, sheath can be made in room temperature
Elastic conjunction can be just reached down, and radial direction inserts ensure that effective transmission of motor torque, and form is steady when making rotor operate
It is fixed, motor operation smooth performance, high working efficiency.
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；
Fig. 4 is the structural representation of embodiment of the present invention 4.
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 includes sheath 1, permanent magnet, iron core 5 and even
Layer 6 is connect, the permanent magnet is located at the outside of iron core 5, and sheath 1 is located at permanent magnet outside, and the permanent magnet includes that permanent magnet is included forever
The quantity of magnet I 3 and permanent magnet II 2, the permanent magnet I 3 and permanent magnet II 2 it is equal and be arranged alternately in iron core 4 it is cylindrical on, institute
State permanent magnet II 2 two sides formed wedge taper be conelet radially outward, the two block permanent magnetism adjacent with permanent magnet II 2
The wedge of body I 3 matches in both sides wedge with permanent magnet II 2 respectively, and the articulamentum 6 is arranged on permanent magnet and iron core 5
Between gap in, the articulamentum 6 be tack coat, also including radial direction inserts 4, the radial direction inserts 4 be arranged on permanent magnet with
Between iron core 5, the radial direction inserts 4 is I-shaped shape, and described one end of radial direction inserts 4 is placed in monolithic permanent magnet middle part, and the other end is put
In the iron core slot of the iron core 5 for matching.
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 monolithic permanent magnet middle part, and the small end of radial direction inserts 4 is equal with the contact surface of monolithic permanent magnet
For consistent with embodiment 1 outside the flank of tooth that matches.
Embodiment 3：Referring to the drawings 3, a kind of surface-mounted permanent magnet machine rotor, except L-type of the radial direction inserts 4 for big end inwardly
Shape, the contact surface between the top and the side of permanent magnet II 2 of the radial direction inserts 4 is the flank of tooth for matching, radial direction inserts 4 with
Monodentate face tooth bar 7 is provided between permanent magnet I 3, the contact surface between monodentate face tooth bar 7 and the side of permanent magnet I 3 is what is matched
It is consistent with embodiment 1 outside the flank of tooth.
Embodiment 4：Referring to the drawings 4, a kind of surface-mounted permanent magnet machine rotor, except L-type of the radial direction inserts 4 for big end inwardly
Shape, the contact surface between the top and the side of permanent magnet I 3 of the radial direction inserts 4 is the flank of tooth for matching, radial direction inserts 4 with
Monodentate face tooth bar 7 is provided between permanent magnet II 2, the contact surface between monodentate face tooth bar 7 and the side of permanent magnet II 2 is and matches
The flank of tooth outside it is consistent with embodiment 1.
Embodiment 5：A kind of surface-mounted permanent magnet machine rotor, it is consistent with embodiment 1 in addition to articulamentum 6 is weld layer.
Present invention also offers a kind of motor, it includes surface-mount type rotor, and the surface-mount type rotor is above-mentioned
Described surface-mount type rotor.Because above-mentioned surface-mount type rotor has above-mentioned technique effect, with the surface-mount type motor
The motor of rotor should also have above-mentioned technique effect, and here is no longer discussed in detail.
Claims (16)
1. a kind of surface-mounted permanent magnet machine rotor, it includes permanent magnet, and the permanent magnet includes permanent magnet I and permanent magnet II, institute
State permanent magnet I and at least one piece permanent magnet II of the permanent magnet including two or more than two, the two sides shape of the permanent magnet II
Into wedge taper be conelet radially outward, the wedge side of the two piece permanent magnets I adjacent with permanent magnet II respectively with permanent magnetism
The both sides wedge side of body II matches, it is characterised in that also including radial direction inserts and sheath, and the radial direction inserts is arranged on permanent magnetism
Between body and iron core, one end and the permanent magnet of radial direction inserts are fixed together, and the other end of radial direction inserts is big end rank inwardly
Scalariform, the position matched in iron core is provided with the step type slot matched with radial direction inserts, and the other end activity of radial direction inserts is put
In step type slot, the sheath is located at permanent magnet outside.
2. a kind of surface-mounted permanent magnet machine rotor according to claim 1, it is characterised in that the quantity of the permanent magnet II
It is symmetrical arranged for two pieces.
3. a kind of surface-mounted permanent magnet machine rotor according to claim 1, it is characterised in that the permanent magnet I and permanent magnetism
Body II is alternately arranged setting.
4. a kind of surface-mounted permanent magnet machine rotor according to claim 1 or claim 2 or claim 3, its feature
It is 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, the footpath
The contact surface on top and monolithic permanent magnet to inserts is the flank of tooth for matching.
5. a kind of surface-mounted permanent magnet machine rotor according to claim 1 or claim 2 or claim 3, its feature
It is 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 and matches
Iron core slot in.
6. a kind of surface-mounted permanent magnet machine rotor according to claim 1 or claim 2 or claim 3, its feature
It is that the radial direction inserts is to hold L-type shape inwardly, the contact between the top and the side of permanent magnet II of the radial direction inserts greatly
Face is the flank of tooth for matching.
7. a kind of surface-mounted permanent magnet machine rotor according to claim 6, it is characterised in that also including monodentate face tooth bar,
Monodentate face tooth bar is arranged between radial direction inserts and permanent magnet I, the contact surface between monodentate face tooth bar and the side of permanent magnet I
For the flank of tooth for matching.
8. a kind of surface-mounted permanent magnet machine rotor according to claim 1 or claim 2 or claim 3, its feature
It is that the radial direction inserts is to hold L-type shape inwardly, the contact between the top and the side of permanent magnet I of the radial direction inserts greatly
Face is the flank of tooth for matching.
9. a kind of surface-mounted permanent magnet machine rotor according to claim 8, it is characterised in that also including monodentate face tooth bar,
Monodentate face tooth bar is arranged between radial direction inserts and permanent magnet II, the contact between monodentate face tooth bar and the side of permanent magnet II
Face is the flank of tooth for matching.
10. a kind of surface-mounted permanent magnet machine rotor according to claim 1 or claim 2 or claim 3, its feature
It is that, also including articulamentum, the articulamentum is fixed in the gap between permanent magnet and iron core.
11. a kind of surface-mounted permanent magnet machine rotors according to claim 4, it is characterised in that described also including articulamentum
Articulamentum is fixed in the gap between permanent magnet and iron core.
12. a kind of surface-mounted permanent magnet machine rotors according to claim 5, it is characterised in that described also including articulamentum
Articulamentum is fixed in the gap between permanent magnet and iron core.
13. a kind of surface-mounted permanent magnet machine rotors according to claim 6, it is characterised in that described also including articulamentum
Articulamentum is fixed in the gap between permanent magnet and iron core.
14. a kind of surface-mounted permanent magnet machine rotors according to claim 7, it is characterised in that described also including articulamentum
Articulamentum is fixed in the gap between permanent magnet and iron core.
15. a kind of surface-mounted permanent magnet machine rotors according to claim 9, it is characterised in that described also including articulamentum
Articulamentum is fixed in the gap between permanent magnet and iron core.
A kind of 16. motors, it includes surface-mounted permanent magnet machine rotor, it is characterised in that the surface-mounted permanent magnet machine rotor is
Surface-mounted permanent magnet machine rotor of the claims 1 to claim 13 described in any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510209045.4A CN104779725B (en) | 2015-04-29 | 2015-04-29 | Surface-mounted permanent magnet motor rotor and motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510209045.4A CN104779725B (en) | 2015-04-29 | 2015-04-29 | Surface-mounted permanent magnet motor rotor and motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104779725A CN104779725A (en) | 2015-07-15 |
| CN104779725B true CN104779725B (en) | 2017-05-17 |
Family
ID=53621018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510209045.4A Active CN104779725B (en) | 2015-04-29 | 2015-04-29 | Surface-mounted permanent magnet motor rotor and motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104779725B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113629966A (en) * | 2021-08-11 | 2021-11-09 | 东南大学 | Axial flux permanent magnet motor integrated with magnetorheological fluid braking structure |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4302693A (en) * | 1978-12-26 | 1981-11-24 | The Garrett Corporation | Wedge shaped permanent magnet rotor assembly with magnet cushions |
| JPH0919091A (en) * | 1995-06-30 | 1997-01-17 | Fanuc Ltd | Rotor for synchronous motor |
| 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 |
| CN204168098U (en) * | 2014-11-12 | 2015-02-18 | 广州市昊志机电股份有限公司 | Permanent-magnetic synchronous motor rotor |
| CN204517532U (en) * | 2015-04-29 | 2015-07-29 | 湘潭电机股份有限公司 | A kind of surface-mounted permanent magnet machine rotor and motor |
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2015
- 2015-04-29 CN CN201510209045.4A patent/CN104779725B/en active Active
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| Publication number | Publication date |
|---|---|
| CN104779725A (en) | 2015-07-15 |
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