CN202363992U - Magnetic ring with multiple magnetic poles - Google Patents
Magnetic ring with multiple magnetic poles Download PDFInfo
- Publication number
- CN202363992U CN202363992U CN2011204790186U CN201120479018U CN202363992U CN 202363992 U CN202363992 U CN 202363992U CN 2011204790186 U CN2011204790186 U CN 2011204790186U CN 201120479018 U CN201120479018 U CN 201120479018U CN 202363992 U CN202363992 U CN 202363992U
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- Prior art keywords
- magnetic
- ring body
- magnetic ring
- face
- pairs
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- 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 with multiple magnetic poles, which comprises a magnetic ring body and at least two pairs of arc-shaped magnetic sections, wherein the magnetic ring body is of an integrated structure formed by magnetic materials in an injection molding mode. The magnetic sections are embedded in the magnetic ring body and are evenly arranged in the magnetic ring body according to mutually reverse polarities, one side of the upper surface of the magnetic ring body facing to an inner wall of the magnetic ring body is connected with a first end face, five circumferentially equally-divided internal teeth are arranged on the inner wall of the magnetic ring body, one side of the bottom surface of the magnetic ring body facing to the inner wall of the magnetic ring body is connected with a second end face, and the whole surface where the bottom surface is connected with the second end face is provided with small cylinders. The magnetic ring is formed by the magnetic materials in one time, concentricity and uniformity of quality of the magnetic ring are guaranteed, and the at least two pairs of arc-shaped magnetic sections are embedded while the magnetic ring is formed so that the made magnetic ring is provided with a multipole magnetic field.
Description
Technical field
The utility model relates to the electrical micro-machine technical field, especially a kind of magnet ring of many magnetic poles.
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 many magnetic poles 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 many magnetic poles; 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; The magnetic ring body inwall is provided with five internal tooths of circumference five equilibrium, and the bottom surface of described magnetic ring body is connected with second end face towards magnetic ring body inwall one side, is provided with small column on be connected with second end face in the bottom surface whole.
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. internal tooth, 4. cylinder.
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 many magnetic poles shown in Fig. 1～2; 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 towards magnetic ring body 1 inwall one side; Magnetic ring body 1 inwall is provided with five internal tooths 3 of circumference five equilibrium, and the bottom surface of magnetic ring body 1 is connected with second end face towards magnetic ring body 1 inwall one side, is provided with small column 4 on be connected with second end face in the bottom surface whole.
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. the magnet ring of magnetic pole more than a kind; 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 towards magnetic ring body (1) inwall one side; Magnetic ring body (1) inwall is provided with five internal tooths (3) of circumference five equilibrium, and the bottom surface of described magnetic ring body (1) is connected with second end face towards magnetic ring body (1) inwall one side, is provided with small column (4) on be connected with second end face in the bottom surface whole.
2. the magnet ring of a kind of many magnetic poles according to claim 1, it is characterized in that: described magnetic section (2) is four pairs.
3. the magnet ring of a kind of many magnetic poles 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 |
|---|---|---|---|
| CN2011204790186U CN202363992U (en) | 2011-11-27 | 2011-11-27 | Magnetic ring with multiple magnetic poles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204790186U CN202363992U (en) | 2011-11-27 | 2011-11-27 | Magnetic ring with multiple magnetic poles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202363992U true CN202363992U (en) | 2012-08-01 |
Family
ID=46575148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204790186U Expired - Fee Related CN202363992U (en) | 2011-11-27 | 2011-11-27 | Magnetic ring with multiple magnetic poles |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202363992U (en) |
-
2011
- 2011-11-27 CN CN2011204790186U patent/CN202363992U/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 |