CN202353348U - Rotor for permanent magnet synchronous motor - Google Patents
Rotor for permanent magnet synchronous motor Download PDFInfo
- Publication number
- CN202353348U CN202353348U CN2011204355315U CN201120435531U CN202353348U CN 202353348 U CN202353348 U CN 202353348U CN 2011204355315 U CN2011204355315 U CN 2011204355315U CN 201120435531 U CN201120435531 U CN 201120435531U CN 202353348 U CN202353348 U CN 202353348U
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- CN
- China
- Prior art keywords
- rotor
- motor shaft
- plastics
- circular cavity
- permagnetic synchronous
- 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.)
- Expired - Fee Related
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- Structures Of Non-Positive Displacement Pumps (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
The utility model provides a rotor for a permanent magnet synchronous motor. The rotor comprises a permanent magnet rotor, a motor shaft and a coupler fixedly connected with the motor shaft, wherein the permanent magnet rotor is formed by the permanent magnet rotor and plastic in a plastic coating manner, one end of the plastic is provided with a round cavity, the outer wall of the round cavity is provided with an end cover, an elastomer is arranged in the round cavity, a supporting face for the motor shaft is arranged between the other end of the plastic and the motor shaft, and a hollow cavity is arranged between the plastic and the motor shaft. According to the utility model, since the supporting face for the motor shaft is arranged at the other end of the permanent magnet rotor and the hollow cavity is arranged between the permanent magnet rotor and the motor shaft, the inner bore surface of the permanent magnet rotor is effectively prevented from colliding with the surface of a rotor shaft in a large area to cause machine noise, and the hollow cavity is also can be used for storing lubricating grease. The rotor is simple in structure, good in lubricating effect and low in noise.
Description
Technical field
The utility model relates to a kind of permagnetic synchronous motor and uses rotor, is mainly used in the permagnetic synchronous motor in the household electrical appliance such as washing machine and dishwasher.
Background technology
The existing permagnetic synchronous motor that is used on the household electrical appliance such as washing machine or dishwasher is used rotor, comprises motor shaft, rubber cylinder and p-m rotor, and this p-m rotor endoporus and outside injection moulding processing coat one deck plastics; The plastics that coat extend to end face and form the unthreaded hole that a diameter of bore equates; The armature spindle diameter also equates, forms an optical axis, and whole armature spindle surface contacts with the p-m rotor inner hole surface; Make the p-m rotor inner hole surface all form supporting surface; When the p-m rotor high speed rotating, p-m rotor inner hole surface large tracts of land bump armature spindle surface produces very large noise; The user is not in use felt well, satisfied not the industry requirement of bringing in constant renewal in.
Summary of the invention
The purpose of the utility model aim to provide a kind of simple and reasonable, noise is low, high lubricating effect, permagnetic synchronous motor easy for installation is used rotor, to overcome weak point of the prior art.
According to an aspect of the utility model, a kind of permagnetic synchronous motor that is provided is used rotor, comprises p-m rotor; Motor shaft and the shaft coupling that is fixedly connected with motor shaft, p-m rotor is by magnet ring and plastics are plastic forms, and an end of plastics is provided with a circular cavity; The circular cavity outer wall is provided with end cap; The flexible body of circular cavity set inside is characterized in that being provided with the motor shaft supporting surface between the plastics other end and the motor shaft, is provided with a hollow cavity between plastics and the motor shaft.
Said circular cavity inwall one side is raised with the starting muscle, and this starts muscle cross section semicircular in shape or fan-shaped.
The axial length L of said motor shaft supporting surface is 0.2～10mm, and the circumference radial clearance δ of said hollow cavity is 0.05～2mm.
Said shaft coupling is packed in the circular cavity, and the cross section of shaft coupling is by an annulus and trapezoidal the composition, or by an annulus and fan-shaped the composition.
Said elastomer is cylindric, is provided with two, and places starting muscle both sides respectively.
Another aspect according to the utility model; A kind of permagnetic synchronous motor that is provided is used rotor, comprises that permanent magnetism changes in, motor shaft and the shaft coupling that is fixedly connected with motor shaft; P-m rotor is by magnet ring and plastics are plastic forms; One end of plastics is provided with a circular cavity, and the circular cavity outer wall is provided with end cap, it is characterized in that being provided with between the plastics other end and the motor shaft motor shaft supporting surface; Be provided with a hollow cavity between plastics and the motor shaft, said circular cavity set inside has an elastomer.
Said circular cavity inwall one side is raised with a groove, and said end cap inwall one side is raised with another groove.
Said elastomer one end places in the said groove; The other end places in said another groove; Said elastomeric mid portion is in the outside of a said groove and said another groove, and the axial length of mid portion greater than the axial length L of said shaft coupling '.
The axial length L of said motor shaft supporting surface is 0.2～10mm, and the circumference radial clearance δ of said hollow cavity is 0.05～2mm.
Said shaft coupling is packed in the circular cavity, and the cross section of shaft coupling is by an annulus and trapezoidal the composition, or by an annulus and fan-shaped the composition.
The utility model is owing to be provided with the motor shaft supporting surface between the plastics other end of p-m rotor and motor shaft; Between the plastics of p-m rotor and motor shaft, be provided with a hollow cavity; Effectively prevented the inner hole surface large tracts of land bump armature spindle surface of p-m rotor; Thereby the mechanicalness noise that has reduced mutual bump effectively and brought also can contain lubricant grease in described hollow cavity, and it is simple and reasonable, high lubricating effect, noise are low.
Description of drawings
Fig. 1 is the utility model one example structure sketch map.
Fig. 2 is the A-A sectional structure sketch map of Fig. 1.
Fig. 3 is the B-B sectional structure sketch map of Fig. 1.
Fig. 4 is another example structure sketch map of the utility model.
Fig. 5 is the A-A sectional structure sketch map of Fig. 4.
Fig. 6 is the B-B sectional structure sketch map of Fig. 4.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further described.
Referring to Fig. 1, Fig. 2 and Fig. 3; This permagnetic synchronous motor is with an embodiment of rotor; Comprise p-m rotor (1), motor shaft (2) and the shaft coupling (3) that is fixedly connected with motor shaft (2), p-m rotor (1) is that an end of plastics (5) is provided with a circular cavity (6) by magnetic bad (4) and plastic the forming of plastics (5); Circular cavity (6) outer wall is provided with end cap (7); The flexible body of circular cavity (6) set inside (8) is characterized in that being provided with motor shaft supporting surface (9) between plastics (5) other end and the motor shaft (2), is provided with a hollow cavity (10) between plastics (5) and the motor shaft (2).
Circular cavity (6) inwall one side is raised with starting muscle (11), this starting muscle (11) cross section semicircular in shape or fan-shaped; The axial length L of motor shaft supporting surface (9) is 0.2～10mm, and the circumference radial clearance δ of hollow cavity (10) is 0.05～2mm.
Shaft coupling (3) is packed in the circular cavity (6), and the cross section of shaft coupling (3) is by an annulus and trapezoidal the composition, or by an annulus and fan-shaped the composition; Elastomer (8) is cylindric, is provided with two, and places starting muscle (11) both sides respectively.
Referring to Fig. 4, Fig. 5 and Fig. 6; This permagnetic synchronous motor is with another embodiment of rotor; Comprise p-m rotor (1), motor shaft (2) and the shaft coupling (3) that is fixedly connected with motor shaft (2), p-m rotor (1) is that an end of plastics (5) is provided with a circular cavity (6) by magnet ring (4) and plastic the forming of plastics (5); Circular cavity (6) outer wall is provided with end cap (7); It is characterized in that being provided with motor shaft supporting surface (9) between plastics (5) other end and the motor shaft (2), be provided with a hollow cavity (10) between plastics (5) and the motor shaft (2), said circular cavity (6) set inside has an elastomer (8).
Circular cavity (6) inwall one side is raised with a groove (12), and said end cap (7) inwall one side is raised with another groove (13); Elastomer (8) one ends place in the said groove (12); The other end places in said another groove (13); The mid portion (14) of said elastomer (8) is in the outside of a said groove (12) and said another groove (13), and the axial length of mid portion (14) greater than the axial length L of said shaft coupling (3) '.
The axial length L of motor shaft supporting surface (9) is 0.2～10mm, and the circumference radial clearance δ of hollow cavity (10) is 0.05～2mm; Shaft coupling (3) is packed in the circular cavity (6), and the cross section of shaft coupling (3) is by an annulus and trapezoidal the composition, or by an annulus and fan-shaped the composition.
Claims (10)
1. a permagnetic synchronous motor is used rotor; Comprise p-m rotor (1), motor shaft (2) and the shaft coupling (3) that is fixedly connected with motor shaft (2); P-m rotor (1) is by magnet ring (4) and plastic the forming of plastics (5); One end of plastics (5) is provided with a circular cavity (6), and circular cavity (6) outer wall is provided with end cap (7), the flexible body of circular cavity (6) set inside (8); It is characterized in that being provided with motor shaft supporting surface (9) between plastics (5) other end and the motor shaft (2), be provided with a hollow cavity (10) between plastics (5) and the motor shaft (2).
2. permagnetic synchronous motor according to claim 1 is used rotor, it is characterized in that said circular cavity (6) inwall one side is raised with starting muscle (11), this starting muscle (11) cross section semicircular in shape or fan-shaped.
3. permagnetic synchronous motor according to claim 2 is used rotor, and the axial length L that it is characterized in that said motor shaft supporting surface (9) is 0.2～10mm, and the circumference radial clearance δ of said hollow cavity (10) is 0.05～2mm.
4. permagnetic synchronous motor according to claim 3 is used rotor, it is characterized in that said shaft coupling (3) packs in the circular cavity (6), and the cross section of shaft coupling (3) is by an annulus and trapezoidal the composition, or by an annulus and fan-shaped the composition.
5. use rotor according to claim 2 or 4 described permagnetic synchronous motors, it is characterized in that said elastomer (8) is cylindric, be provided with two, and place starting muscle (11) both sides respectively.
6. a permagnetic synchronous motor is used rotor; Comprise p-m rotor (1), motor shaft (2) and the shaft coupling (3) that is fixedly connected with motor shaft (2); P-m rotor (1) is by magnet ring (4) and plastic the forming of plastics (5); One end of plastics (5) is provided with a circular cavity (6), and circular cavity (6) outer wall is provided with end cap (7), it is characterized in that being provided with motor shaft supporting surface (9) between plastics (5) other end and the motor shaft (2); Be provided with a hollow cavity (10) between plastics (5) and the motor shaft (2), said circular cavity (6) set inside has an elastomer (8).
7. use rotor according to claim 6 described permagnetic synchronous motors, it is characterized in that said circular cavity (6) inwall one side is raised with a groove (12), said end cap (7) inwall one side is raised with another groove (13).
8. permagnetic synchronous motor according to claim 7 is used rotor; It is characterized in that said elastomer (8) one ends place in the said groove (12); The other end places in said another groove (13); The mid portion (14) of said elastomer (8) is in the outside of a said groove (12) and said another groove (13), and the axial length of mid portion (14) greater than the axial length L of said shaft coupling (3) '.
9. permagnetic synchronous motor according to claim 8 is used rotor, and the axial length L that it is characterized in that said motor shaft supporting surface (9) is 0.2～10mm, and the circumference radial clearance δ of said hollow cavity (10) is 0.05～2mm.
10. permagnetic synchronous motor according to claim 9 is used rotor, it is characterized in that said shaft coupling (3) packs in the circular cavity (6), and the cross section of shaft coupling (3) is by an annulus and trapezoidal the composition, or by an annulus and fan-shaped the composition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204355315U CN202353348U (en) | 2011-11-07 | 2011-11-07 | Rotor for permanent magnet synchronous motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204355315U CN202353348U (en) | 2011-11-07 | 2011-11-07 | Rotor for permanent magnet synchronous motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202353348U true CN202353348U (en) | 2012-07-25 |
Family
ID=46542312
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204355315U Expired - Fee Related CN202353348U (en) | 2011-11-07 | 2011-11-07 | Rotor for permanent magnet synchronous motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202353348U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104975849A (en) * | 2014-04-08 | 2015-10-14 | 中国石油化工股份有限公司 | Underground information interaction short section, underground information interaction system and work method of underground information interaction system |
-
2011
- 2011-11-07 CN CN2011204355315U patent/CN202353348U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104975849A (en) * | 2014-04-08 | 2015-10-14 | 中国石油化工股份有限公司 | Underground information interaction short section, underground information interaction system and work method of underground information interaction system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Wu Lihua Document name: Notification to Pay the Fees |
|
| DD01 | Delivery of document by public notice |
Addressee: Wu Lihua Document name: Notification of Termination of Patent Right |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120725 Termination date: 20151107 |