CN202364012U - Rotor for micro-motor - Google Patents
Rotor for micro-motor Download PDFInfo
- Publication number
- CN202364012U CN202364012U CN2011204803383U CN201120480338U CN202364012U CN 202364012 U CN202364012 U CN 202364012U CN 2011204803383 U CN2011204803383 U CN 2011204803383U CN 201120480338 U CN201120480338 U CN 201120480338U CN 202364012 U CN202364012 U CN 202364012U
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- CN
- China
- Prior art keywords
- rotor
- magnetic
- magnet ring
- magnetic ring
- ring
- 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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Abstract
The utility model relates to the technical field of motors, in particular to a rotor for a micro-motor, which comprises a plastic magnetic ring and a rotary shaft embedded into the magnetic ring, wherein the plastic magnetic ring is formed by means of integral injection molding. The magnetic ring is made of magnetic materials by means of integral injection molding, a plurality of magnetic poles are injected on the surface of the magnetic ring and uniformly arrayed in a magnetic ring body according to converse polarities, an end face is connected into the magnetic ring and provided with two opposite circular holes, and projecting blocks are arranged on the inner wall of the magnetic ring. The rotor is made of the magnetic materials by means of one-time forming, and the rotary shaft also serves as an insert in one-time forming, so that concentricity of the rotor and uniformity of the quality are guaranteed. Besides, the magnetic poles are injected while the rotor is formed, so that the manufactured magnetic rotor has a multi-pole magnetic field.
Description
Technical field
The utility model relates to technical field of motors, especially a kind of rotor that is used for electrical micro-machine.
Background technology
Electrical micro-machine has been widely used in fields such as automation, electromechanics now.In fields such as electrical micro-machine and stepping motor, be widely used multi-pole magnet-ring as rotor, add outside in the coil through behind the pulse current, rotor just turns over a fixing angle.
Traditional multi-pole magnet rotor is to use that the polylith magnet is bonding to form, but when the manufacturing small-sized electrical micro-machine, is difficult to processing, owing to be many magnetic patch splicings, is difficult to the magnetic pole angle is done accurately simultaneously.Be difficult to accomplish that whole rotor quality is even during simultaneously owing to splicing, make that the dynamic balancing of rotor is poor, increased the vibration and the noise of motor, influence motor performance.
The utility model content
The technical problem that the utility model will solve is: based on the problems referred to above, provide angle between a kind of distance between two poles and magnetic pole of simple in structure, multi-pole magnet to be used for the rotor of electrical micro-machine accurately.
The utility model solves the technical scheme that its technical problem adopted: a kind of rotor that is used for electrical micro-machine; Comprise integrated injection molding plastics magnet ring and be embedded in the rotating shaft in the magnet ring; Described magnet ring is the injection molded integrative-structure of magnetic material; The surface injection of magnet ring has a plurality of magnetic poles, and described magnetic pole is evenly arranged in the magnetic ring body by the polarity of putting upside down each other, is connected with an end face in the described magnet ring; Offer two circular holes that are oppositely arranged on the end face, described magnet ring inwall is provided with projection.
Described magnet ring is columnar structured.
Described projection is three of circumference five equilibrium.
The beneficial effect of the utility model is: the utility model is the one-time formed rotor of magnetic material; Rotating shaft is also as the inserts in the one-shot forming; The concentricity of rotor and the uniformity of quality have been guaranteed; Simultaneously injected a plurality of magnetic poles simultaneously, made the magnet rotor of processing have multipole magnetic field in moulding.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
Fig. 1 is the sectional structure sketch map of the utility model.
Fig. 2 is the plan structure sketch map of the utility model.
Among the figure: 1. magnet ring, 2. rotating shaft, 3. end face, 4. circular hole, 5. projection.
Embodiment
Combine accompanying drawing that the utility model is done further detailed explanation now.These accompanying drawings are the sketch map of simplification, the basic structure of the utility model only is described in a schematic way, so it only show the formation relevant with the utility model.
A kind of rotor that is used for electrical micro-machine shown in Fig. 1～2; Comprise integrated injection molding plastics magnet ring 1 and be embedded in the rotating shaft 2 in the magnet ring, magnet ring 1 is the injection molded integrative-structure of magnetic material, and the surface injection of magnet ring 1 has a plurality of magnetic poles; Magnetic pole is evenly arranged in magnet ring 1 body by the polarity of putting upside down each other; Be connected with an end face 3 in the magnet ring 1, offer two circular holes that are oppositely arranged 4 on the end face 3, magnet ring 1 inwall is provided with projection 5.
Magnet ring 1 is columnar structured.
With above-mentioned desirable embodiment according to the utility model is enlightenment, and through above-mentioned description, the related work personnel can carry out various change and modification fully in the scope that does not depart from this utility model technological thought.The technical scope of this utility model is not limited to the content on the specification, must confirm its technical scope according to the claim scope.
Claims (3)
1. rotor that is used for electrical micro-machine; It is characterized in that: comprise integrated injection molding plastics magnet ring (1) and be embedded in the rotating shaft (2) in the magnet ring (1); Described magnet ring (1) is the injection molded integrative-structure of magnetic material; The surface injection of magnet ring (1) has a plurality of magnetic poles, and described magnetic pole is evenly arranged in magnet ring (1) body by the polarity of putting upside down each other, is connected with an end face (3) in the described magnet ring (1); Offer two circular holes that are oppositely arranged (4) on the end face (3), described magnet ring (1) inwall is provided with projection (5).
2. a kind of rotor that is used for electrical micro-machine according to claim 1 is characterized in that: described magnet ring (1) is for columnar structured.
3. a kind of rotor that is used for electrical micro-machine according to claim 1 is characterized in that: described projection (5) is three of the circumference five equilibrium.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204803383U CN202364012U (en) | 2011-11-27 | 2011-11-27 | Rotor for micro-motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204803383U CN202364012U (en) | 2011-11-27 | 2011-11-27 | Rotor for micro-motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202364012U true CN202364012U (en) | 2012-08-01 |
Family
ID=46575168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204803383U Expired - Fee Related CN202364012U (en) | 2011-11-27 | 2011-11-27 | Rotor for micro-motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202364012U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103855828A (en) * | 2014-03-03 | 2014-06-11 | 常州奥立思特电子有限公司 | Permanent-magnet direct-current brushless motor rotor structure |
-
2011
- 2011-11-27 CN CN2011204803383U patent/CN202364012U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103855828A (en) * | 2014-03-03 | 2014-06-11 | 常州奥立思特电子有限公司 | Permanent-magnet direct-current brushless motor rotor structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120801 Termination date: 20121127 |