CN202363987U - Magnetic ring for micro motor - Google Patents
Magnetic ring for micro motor Download PDFInfo
- Publication number
- CN202363987U CN202363987U CN2011204789757U CN201120478975U CN202363987U CN 202363987 U CN202363987 U CN 202363987U CN 2011204789757 U CN2011204789757 U CN 2011204789757U CN 201120478975 U CN201120478975 U CN 201120478975U CN 202363987 U CN202363987 U CN 202363987U
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- China
- Prior art keywords
- magnetic ring
- magnetic
- ring body
- face
- pairs
- 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 relates to the technical field of micro motors, in particular to a magnetic ring for a micro motor. The magnetic ring for the micro motor comprises a magnetic ring body and at least two pairs of cambered magnetic sections, wherein the magnetic ring body has an integral structure formed by the injection molding of a magnetic material; the magnetic sections are embedded into the magnetic ring body, and are uniformly arranged in the magnetic ring body in a way that polarities are inverted; one side of the upper surface of the magnetic ring body faces the inner wall of the magnetic ring body, and is connected with a first end face on which four circumferentially equally bumps are arranged; the bumps are 1mm shorter than the first end face; and one side of the bottom surface of the magnetic ring body faces the inner wall of the magnetic ring body, and a second end face is arranged on the side. The magnetic ring is molded at a time from the magnetic material, so that the concentricity of the magnetic ring and the uniformity of mass are ensured; and in addition, at least two pairs of magnetic sections are embedded in molding, so that the obtained magnetic ring has a multi-pole magnetic field.
Description
Technical field
The utility model relates to the electrical micro-machine technical field, and especially a kind of electrical micro-machine is used magnet ring.
Background technology
Electrical micro-machine has been widely used in fields such as automation, electromechanics now.The 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 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 electrical micro-machine use magnet ring.
The utility model solves the technical scheme that its technical problem adopted: a kind of electrical micro-machine 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 first end face towards magnetic ring body inwall one side; First end face is provided with four convexities of circumference five equilibrium, and protruding length is less than the first end face length 1mm, and the bottom surface of described magnetic ring body is provided with second end face towards magnetic ring body inwall one side.
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 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. first end face, 4. convexity, 5. second end face.
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 electrical micro-machine 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 first end face 3 towards magnetic ring body 1 inwall one side; First end face 3 is provided with four convexities 4 of circumference five equilibrium, and protruding 4 length is less than first end face, 3 length 1mm, and the bottom surface of magnetic ring body 1 is provided with second end face 5 towards magnetic ring body 1 inwall one side.
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. an electrical micro-machine 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 first end face (3) towards magnetic ring body (1) inwall one side; First end face (3) is provided with four convexities (4) of circumference five equilibrium, and the length of protruding (4) is less than the first end face length 1mm, and the bottom surface of described magnetic ring body (1) is provided with second end face (5) towards magnetic ring body (1) inwall one side.
2. a kind of electrical micro-machine according to claim 1 is used magnet ring, it is characterized in that: described magnetic section (2) is four pairs.
3. a kind of electrical micro-machine 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 |
|---|---|---|---|
| CN2011204789757U CN202363987U (en) | 2011-11-27 | 2011-11-27 | Magnetic ring for micro motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204789757U CN202363987U (en) | 2011-11-27 | 2011-11-27 | Magnetic ring for micro motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202363987U true CN202363987U (en) | 2012-08-01 |
Family
ID=46575143
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204789757U Expired - Fee Related CN202363987U (en) | 2011-11-27 | 2011-11-27 | Magnetic ring for micro motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202363987U (en) |
-
2011
- 2011-11-27 CN CN2011204789757U patent/CN202363987U/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 |