CN202276212U - Permanent magnet rotor - Google Patents
Permanent magnet rotor Download PDFInfo
- Publication number
- CN202276212U CN202276212U CN201120424998XU CN201120424998U CN202276212U CN 202276212 U CN202276212 U CN 202276212U CN 201120424998X U CN201120424998X U CN 201120424998XU CN 201120424998 U CN201120424998 U CN 201120424998U CN 202276212 U CN202276212 U CN 202276212U
- Authority
- CN
- China
- Prior art keywords
- permanent magnets
- conductive core
- magnetic conductive
- protective sleeve
- permanent magnet
- 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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- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
The utility model discloses a permanent magnet rotor which comprises a rotating shaft (4), a magnetoconductive core (1), a plurality of permanent magnets (2) and a protective sleeve (3), wherein the permanent magnets (2) are attached to the outer edge of the magnetoconductive core (1); the polarities of the permanent magnets (2) are alternate; the magnetoconductive core (1), the protective sleeve (3) and the permanent magnets (2) are fixedly connected with each other; the contact surface of each permanent magnet (2) with the magnetoconductive core (1) is a plane; and the contact surface of the magnetoconductive core (1) with each permanent magnet (2) is a plane. Since the cubic permanent magnet is easier to process and can be obtained only by cutting, the whole permanent magnet rotor is simpler to manufacture.
Description
Technical field
The utility model relates to a kind of p-m rotor.
Background technology
At present, the p-m rotor that utilizes permanent magnetic material to process is widely used in the middle of the various motors.Mostly the magnetic conductive core of existing p-m rotor is cylindrical, therefore is fixed on the outer permanent magnets of magnetic conductive core and also need be processed into the tile shape that matches with it.But the problem that exists is that the permanent magnets processing of tile shape is trouble comparatively.
The utility model content
The utility model technical problem to be solved is: provide a kind of manufacturing simple p-m rotor.
The utility model addresses the above problem the technical scheme that is adopted: a kind of p-m rotor; Comprise rotating shaft, magnetic conductive core, a plurality of permanent magnets and protective sleeve that is bonded on the magnetic conductive core outer rim; The alternating polarity of a plurality of permanent magnets is alternate; Be fixedly connected between magnetic conductive core, protective sleeve and the permanent magnets, the contact-making surface of described a plurality of permanent magnets and magnetic conductive core is the plane, and the contact-making surface of described magnetic conductive core and a plurality of permanent magnets is the plane.
As preferably, said permanent magnets is a cuboid, and quantity is 8; The cross section of said magnetic conductive core is octagon.
As preferably, be fixedly connected between said magnetic conductive core, protective sleeve and the permanent magnets and be meant that the employing seccotine is bonding between magnetic conductive core, protective sleeve and the permanent magnets.
Compared with prior art, the advantage of the utility model is: because the permanent magnets ratio of box-shaped is easier to processing, only need cutting just can obtain, make the manufacturing of whole p-m rotor simpler.
Description of drawings
Fig. 1 is the structural representation of the utility model p-m rotor.
Among the figure: 1, magnetic conductive core, 2, permanent magnets, 3, protective sleeve, 4, rotating shaft.
Embodiment
Embodiment to the utility model further describes below in conjunction with accompanying drawing.
As shown in the figure, the utility model p-m rotor, comprise rotating shaft 4, magnetic conductive core 1, eight be bonded in permanent magnets 2 and the protective sleeve 3 on magnetic conductive core 1 outer rim; Permanent magnets 2 is a box-shaped, and the alternating polarity of eight permanent magnets 2 is alternate, and the N utmost point, the S utmost point of promptly adjacent permanent magnets 2 are interspersed; Be fixedly connected between magnetic conductive core 1, protective sleeve 3 and the permanent magnets 2, described eight permanent magnets 2 are the plane with the contact-making surface of magnetic conductive core 1, and the contact-making surface of described magnetic conductive core 1 and eight permanent magnets 2 is the plane.
The cross section of said magnetic conductive core 1 is octagon.
Be fixedly connected between said magnetic conductive core, protective sleeve and the permanent magnets and be meant that the employing seccotine is bonding between magnetic conductive core, protective sleeve and the permanent magnets.
The inwall of magnetic conductive core 1 is provided with helicitic texture, and rotating shaft 4 and magnetic conductive core 1 are connected through screw thread.
In the present embodiment, magnetic conductive core 1 is overrided to form by punching silicon-steel, and protective sleeve 3 is a copper sheathing, and bonding used seccotine glue is epoxy resin.For the selection of the permanent magnetic material of permanent magnets 2, select NdFeB material generally speaking for use; If be applied to high temperature or adverse circumstances, then select samarium-cobalt permanent-magnetic material for use.Because samarium-cobalt permanent-magnetic material still can guarantee high magnetic energy product and temperature stability and chemical stability under higher working temperature, its maximum operating temperature can reach 350 degree even higher, and samarium-cobalt permanent-magnetic material has very strong corrosion resistance and non-oxidizability.In addition, the HCJ of samarium-cobalt permanent-magnetic material is very high, and anti-demagnetization capability is strong, and can reach more than 10 years useful life.
Claims (3)
1. p-m rotor; Comprise rotating shaft (4), magnetic conductive core (1), a plurality of permanent magnets (2) and protective sleeve (3) that is bonded on magnetic conductive core (1) outer rim; The alternating polarity of a plurality of permanent magnets (2) is alternate; Be fixedly connected between magnetic conductive core (1), protective sleeve (3) and the permanent magnets (2); It is characterized in that: described a plurality of permanent magnets (2) are the plane with the contact-making surface of magnetic conductive core (1), and described magnetic conductive core (1) is the plane with the contact-making surface of a plurality of permanent magnets (2).
2. p-m rotor according to claim 1 is characterized in that: said permanent magnets (2) is a cuboid, and quantity is 8; The cross section of said magnetic conductive core (1) is octagon.
3. p-m rotor according to claim 1 is characterized in that: be fixedly connected between said magnetic conductive core (1), protective sleeve (3) and the permanent magnets (2) and be meant that the employing seccotine is bonding between magnetic conductive core (1), protective sleeve (3) and the permanent magnets (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120424998XU CN202276212U (en) | 2011-11-01 | 2011-11-01 | Permanent magnet rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120424998XU CN202276212U (en) | 2011-11-01 | 2011-11-01 | Permanent magnet rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202276212U true CN202276212U (en) | 2012-06-13 |
Family
ID=46196549
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120424998XU Expired - Fee Related CN202276212U (en) | 2011-11-01 | 2011-11-01 | Permanent magnet rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202276212U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106100183A (en) * | 2016-08-13 | 2016-11-09 | 中车永济电机有限公司 | A kind of high temperature, high rotating speed rotor structure for permanent magnet motor |
-
2011
- 2011-11-01 CN CN201120424998XU patent/CN202276212U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106100183A (en) * | 2016-08-13 | 2016-11-09 | 中车永济电机有限公司 | A kind of high temperature, high rotating speed rotor structure for permanent magnet motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120613 Termination date: 20141101 |
|
| EXPY | Termination of patent right or utility model |