CN202364004U - Magnet ring for micro machine rotor - Google Patents
Magnet ring for micro machine rotor Download PDFInfo
- Publication number
- CN202364004U CN202364004U CN2011204803400U CN201120480340U CN202364004U CN 202364004 U CN202364004 U CN 202364004U CN 2011204803400 U CN2011204803400 U CN 2011204803400U CN 201120480340 U CN201120480340 U CN 201120480340U CN 202364004 U CN202364004 U CN 202364004U
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- China
- Prior art keywords
- magnet ring
- ring body
- magnetic
- 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 a motor field, especially to a magnet ring for a micro machine rotor. The magnet ring for the micro machine rotor comprises a magnet ring body and at least two pairs of arc-shaped magnetic segments, wherein the magnet ring body is one body structure which is obtained by magnetic material injection, the magnetic segments with polarities reversing each other are inlaid inside the magnet ring body and arranged uniformly in the magnet ring body, and an end face with two grooves each of which are equally divided in circumference is connected to an upper surface of the magnet ring body towards an inwall side of the magnet ring body. The magnet ring in the utility model is one-step molding multipolar magnet ring using magnetic material, which guarantees the concentricity of the magnet ring and the uniformity of the quality and prepares the magnet ring having multipolar magnetic field by inlaying at least two pairs of magnetic segments while molding the magnet ring.
Description
Technical field
The utility model relates to electromechanics trade, and especially a kind of micro-motor rotor is used magnet ring.
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, provide between a kind of distance between two poles and magnetic pole of simple in structure, polylith magnetic section angle accurately micro-motor rotor use magnet ring.
The utility model solves the technical scheme that its technical problem adopted: a kind of micro-motor rotor is used magnet ring; Comprise magnetic ring body and at least two pairs of circular arc magnetic sections; 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 two grooves of circumference five equilibrium.
Described magnetic Duan Weisi 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 multi-pole 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. groove.
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 micro-motor rotor shown in Fig. 1～2 is used magnet ring; Comprise magnetic ring body 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 two grooves 4 of circumference five equilibrium.
Magnetic section 2 is four pairs.
Magnetic ring body 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. a micro-motor rotor is used magnet ring; It is characterized in that: comprise magnetic ring body (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, and described 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 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 two grooves (4) of circumference five equilibrium.
2. a kind of micro-motor rotor according to claim 1 is used magnet ring, it is characterized in that: described magnetic section (2) is four pairs.
3. a kind of micro-motor rotor according to claim 1 is used magnet ring, it is characterized in that: described magnetic ring body (1) is for columnar structured.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204803400U CN202364004U (en) | 2011-11-27 | 2011-11-27 | Magnet ring for micro machine rotor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204803400U CN202364004U (en) | 2011-11-27 | 2011-11-27 | Magnet ring for micro machine rotor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202364004U true CN202364004U (en) | 2012-08-01 |
Family
ID=46575160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204803400U Expired - Fee Related CN202364004U (en) | 2011-11-27 | 2011-11-27 | Magnet ring for micro machine rotor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202364004U (en) |
-
2011
- 2011-11-27 CN CN2011204803400U patent/CN202364004U/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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120801 Termination date: 20121127 |