CN202363990U - Magnetic ring of micromotor - Google Patents
Magnetic ring of micromotor Download PDFInfo
- Publication number
- CN202363990U CN202363990U CN2011204804121U CN201120480412U CN202363990U CN 202363990 U CN202363990 U CN 202363990U CN 2011204804121 U CN2011204804121 U CN 2011204804121U CN 201120480412 U CN201120480412 U CN 201120480412U CN 202363990 U CN202363990 U CN 202363990U
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- CN
- China
- Prior art keywords
- magnetic ring
- magnetic
- ring body
- utility
- model
- 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 micromotors, in particular to a magnetic ring of a micromotor. The magnetic ring of the micromotor comprises an upper magnetic ring body, a lower magnetic ring body and at least two pairs of circular-arc shaped magnetic sections, wherein the upper magnetic ring body and the lower magnetic ring body are same in structure and are respectively of an integrated structure formed through injection moulding of magnetic materials, the magnetic sections are embedded in the magnetic ring bodies and are uniformly arrayed in the magnetic ring bodies in a manner that the polarities are different mutually, one side, facing the inner wall of each magnetic ring body, of the upper surface of each magnetic ring body is connected with an end face, and each end face is provided with four protrusions which divide a circumference into equal parts. The magnetic ring disclosed by the utility model is formed by subjecting the magnetic materials to one-step forming, so that the concentricity of the magnetic ring and the quality uniformity are guaranteed, and meanwhile, at least two pairs of magnetic sections are embedded during molding, so that the manufactured magnetic ring is provided with multistage magnetic fields.
Description
Technical field
The utility model relates to the electrical micro-machine technical field, especially a kind of magnet ring of electrical micro-machine.
Background technology
Electrical micro-machine has been widely used in fields such as automation, electromechanics now.The multi-pole magnet-ring that in fields such as electrical micro-machine and stepping motor, is widely used uses and is rotor, add outside pass through a pulse current in the coil after, rotor just turns over a fixing angle.
Traditional multi-pole magnet-ring is to use bonding the forming of polylith magnetic section; But when the manufacturing small-sized electrical micro-machine, be difficult to processing, owing to be the splicing of polylith magnetic section, be difficult to the magnetic pole angle is done accurately simultaneously; Be difficult to accomplish that whole magnet ring quality is even during simultaneously owing to splicing; Make that the dynamic balancing of magnet ring 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, the angle magnet ring of electrical micro-machine accurately is provided between a kind of distance between two poles and magnetic pole of simple in structure, polylith magnetic section.
The utility model solves the technical scheme that its technical problem adopted: a kind of magnet ring of electrical micro-machine; Comprise magnetic ring body and at least two pairs of circular arc magnetic sections that upper and lower structure is identical; Described magnetic ring body is the injection molded integrative-structure of magnetic material, and described magnetic section is embedded in the magnetic ring body, and the magnetic section is evenly arranged in the magnetic ring body by the polarity of putting upside down each other; The upper surface of described magnetic ring body is connected with an end face towards magnetic ring body inwall one side, and end face is provided with four convexities of circumference five equilibrium.
Described magnetic Duan Yousi is right.
Described magnetic ring body is columnar structured.
The beneficial effect of the utility model is: the utility model is the one-time formed magnet ring of magnetic material, has guaranteed the concentricity of magnet ring and the uniformity of quality, is inlaid with at least two pairs of magnetic sections simultaneously in moulding simultaneously, makes the magnet ring of processing have multipole magnetic field.
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. magnetic ring body, 2. magnetic section, 3. end face, 4. convexity.
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.
The magnet ring of a kind of electrical micro-machine shown in Fig. 1～2; Comprise the identical magnetic ring body of upper and lower structure 1 and at least two pairs of circular arc magnetic sections 2; Magnetic ring body 1 is the injection molded integrative-structure of magnetic material, and magnetic section 2 is embedded in the magnetic ring body 1, and magnetic section 2 is evenly arranged in the magnetic ring body 1 by the polarity of putting upside down each other; The upper surface of magnetic ring body 1 is connected with an end face 3 towards magnetic ring body 1 inwall one side, and end face 3 is provided with four convexities 4 of circumference five equilibrium.
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. the magnet ring of an electrical micro-machine; It is characterized in that: comprise the identical magnetic ring body of upper and lower structure (1) and at least two pairs of circular arc magnetic sections (2); Described magnetic ring body (1) is the injection molded integrative-structure of magnetic material; Described magnetic section (2) is embedded in the magnetic ring body (1); Magnetic section (2) is evenly arranged in the magnetic ring body (1) by the polarity of putting upside down each other, and the upper surface of described magnetic ring body (1) is connected with an end face (3) towards magnetic ring body (1) inwall one side, and end face (3) is provided with four convexities (4) of circumference five equilibrium.
2. the magnet ring of a kind of electrical micro-machine according to claim 1, it is characterized in that: described magnetic section (2) has four pairs.
3. the magnet ring of a kind of electrical micro-machine according to claim 1 is characterized in that: described magnetic ring body (1) is for columnar structured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204804121U CN202363990U (en) | 2011-11-27 | 2011-11-27 | Magnetic ring of micromotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204804121U CN202363990U (en) | 2011-11-27 | 2011-11-27 | Magnetic ring of micromotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202363990U true CN202363990U (en) | 2012-08-01 |
Family
ID=46575146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204804121U Expired - Fee Related CN202363990U (en) | 2011-11-27 | 2011-11-27 | Magnetic ring of micromotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202363990U (en) |
-
2011
- 2011-11-27 CN CN2011204804121U patent/CN202363990U/en not_active Expired - Fee Related
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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: 20120801 Termination date: 20141127 |
|
| EXPY | Termination of patent right or utility model |