CN201430521Y - Miniature electromagnetic driver - Google Patents
Miniature electromagnetic driver Download PDFInfo
- Publication number
- CN201430521Y CN201430521Y CN2009200149167U CN200920014916U CN201430521Y CN 201430521 Y CN201430521 Y CN 201430521Y CN 2009200149167 U CN2009200149167 U CN 2009200149167U CN 200920014916 U CN200920014916 U CN 200920014916U CN 201430521 Y CN201430521 Y CN 201430521Y
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- China
- Prior art keywords
- magnetic conductor
- magnetic
- electromagnetic actuator
- bracket
- support
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Abstract
The utility model relates to a miniature electromagnetic driver, which belongs to the technical field of electromagnetic drive and comprises a magnetic conductor, a bracket, a coil and two magnetic rings. The magnetic conductor is a cylinder body two end surfaces of which are provided with holes, two magnetic rings are arranged at two ends in the magnetic conductor in a monopolar opposite mode, anair gap is formed between the two magnetic rings and used as a working area, one end of the bracket extends out of the magnetic conductor, the other end of the bracket is arranged between the two magnetic rings and the coil is wound on the circumferential surface of the bracket between the two magnetic rings. The electromagnetic driver adopts a hollow structure, thus the weight of the driver is reduced. The bracket is formed by arranging a wheel hub on a hollow column or arranging a wheel disc on a strut, thus the output of the driver is linear stroke, a motion conversion mechanism is omittedin the practical application, the structure is simplified and the reliability and the efficiency are improved. A certain gap is reserved between outer annular surfaces of the two magnetic rings and the magnetic conductor so as to reduce magnetic leakage and improve the utilization rate of magnetic energy. The miniature electromagnetic driver has small outer diameter, low required drive voltage, simple control and suitability for miniature robots.
Description
Technical field
The utility model belongs to the Electromagnetic Drive Technology field, particularly relates to a kind of micro electromagnetic actuator.
Background technology
Miniature flying robot (MAV) has characteristics such as volume is little, in light weight, cost is low, flight is flexible, and is huge in national defence and civil area application potential.Wherein flapping wing MAV has bionical flying method, can littleization degree height, good concealment, flight maneuver height, its sized flap wings system integrates lifting, hovers and propulsion functions, can carry out the flight of longer distance with littler energy, be highly suitable under the additional and remote relatively condition of long-time energy free and execute the task, being considered to the most promising minute vehicle, is the focus and the advanced subject of current MAV research.Wherein the design of MAV driver is one of principal element of its miniaturization development of restriction, so far, adopt the driver of artificial-muscle design, be difficult to reach the required vibration frequency of flapping wings type MAV flight, and piezoelectric ceramic actuator needs too high driving voltage and output displacement little again.
The utility model content
At the technical problem of above-mentioned existence, the utility model provides a kind of micro electromagnetic actuator, and it is little, in light weight that this driver has a volume, the characteristics that thrust-weight ratio is high.
The technical solution of the utility model is as follows:
A kind of micro electromagnetic actuator, comprise magnetic conductor, support, coil and two magnet rings, described magnetic conductor is the cylindrical shell that both ends of the surface have the hole, two magnet ring homopolarities are opposite to two ends in the magnetic conductor mutually, between two magnet rings, form air gap as the service area, support one end stretches out outside the magnetic conductor, and an end places between two magnet rings, is wound with coil on the support periphery that places between two magnet rings.
Described support is wheel hub to be installed constitute on open tubular column, and during installation, its hollow styletable stretches out outside the magnetic conductor.Perhaps described support is wheel disc to be installed constitute on pillar, and during installation, its post ends is stretched out outside the magnetic conductor.
The outer ring surface of described two magnet rings and the distance between magnetic conductor are 0.2-2mm.Described two magnet ring internal diameters are identical with the aperture at magnetic conductor two ends.The outer diameter D of described magnetic conductor is 3-10mm.The axial movement travel of described support is 0.2-3mm.
The beneficial effects of the utility model are:
1. electromagnetic driver of the present utility model adopts the open-core type structure: magnetic conductor is the cylindrical shell that both ends of the surface have perforate, and support is wheel hub to be installed constitute on open tubular column; Alleviated the weight of driver.
2. support of the present utility model adopts to be installed wheel hub or the wheel disc formation is being installed on pillar on the open tubular column, make the utility model driver be output as rectilinear path, remove movement conversion mechanism in actual applications from, made structure be simplified, improved reliability and efficient.
3. the utility model leaves certain space between the outer ring surface of two magnet rings and magnetic conductor, reducing leakage field, and increases the utilance of magnetic energy.
4. the utility model outside dimension is little, and the driving voltage of demand is low, and control is simple, is applicable to microrobot.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the perspective view of Fig. 1 middle magnetic ring.
Fig. 3 is the perspective view of magnetic conductor among Fig. 1.
Fig. 4 is the cross-sectional schematic of Fig. 3.
Fig. 5 is the structural representation of support.
Fig. 6 is the cross-sectional schematic of Fig. 5.
Embodiment
Describe the utility model in detail below in conjunction with embodiment and accompanying drawing.
Embodiment 1: orthoscopic electromagnetic driver of the present utility model comprises magnetic conductor 1, support 4, coil 2 and two magnet rings 3, described magnetic conductor 1 has the cylindrical shell in hole 6 for both ends of the surface 5, two magnet rings, 3 homopolarities are opposite to two ends in the magnetic conductor 1 mutually, form air gap 7 as the service area 3 of two magnet rings, this routine described support 4 is wheel hub 9 to be installed constitute on open tubular column 8, during installation, its open tubular column 8 ends stretch out outside the magnetic conductor 1, wheel hub 9 ends place between two magnet rings 3, be wound with coil 2 on the periphery of wheel hub 9, coil 2 is connected with external power source.The open tubular column 8 of this routine support is the annulus post, also can adopt other versions as required.
The external diameter of this routine magnetic conductor 1 is less than 10mm, and stroke requires to adjust according to output, is generally less than 3mm, and the outer diameter D of this routine magnetic conductor 1 is 6mm.During installation, two magnet ring homopolarities are staggered relatively, magnetic conductor 1 equates and concentric installation with the internal orifice dimension of magnet ring 3, the upper and lower surface of two magnet rings 3 overlaps with the inside upper and lower surface of magnetic conductor 1 respectively, magnet ring 3 external diameters to reduce leakage field, increase the utilance of magnetic energy less than magnetic conductor 1 inner barrel dliameter, the distance that the outer ring surface of this example two magnet rings 3 and magnetic conductor are 1 is 0.2-2mm, and this example is selected 1mm.Coil 2 is wrapped in coaxial being placed in the working gas gap 7 in back on the support 4, and can move freely vertically in air gap 7, and open tubular column 8 ends of support 4 are the utility model output end of driver, are connected with load.After aliving in the coil 2, under the effect of electromagnetic force, coil 2 drives support 4 motions, produces the output displacement, to move and power is delivered to load by support 4, and the size of power output, direction and output frequency are controlled by size, direction and the frequency of drive current; These routine support 4 axial motion strokes are 2mm.Its middle magnetic ring 3 and magnetic conductor 1 are as stator, and coil 2 and support 4 are as mover.Characteristic as load can not guarantee that support 4 and coil 2 with respect to the position of stator, need to increase guiding mechanism, to guarantee the normal operation of driver.
Embodiment 2: this routine overall structure is identical with embodiment 1, and different is: described support 4 constitutes for wheel disc is installed on pillar, and during installation, its post ends is stretched out outside the magnetic conductor 1, is connected with the load of outside, is wound with coil 2 on the wheel disc periphery.The distance that the outer ring surface of described two magnet rings 3 and magnetic conductor are 1 is 0.2mm.The outer diameter D of magnetic conductor 1 is 3mm.Described support 4 axial motion strokes are 0.2mm.
Embodiment 3: this routine overall structure is identical with embodiment 2, and different is: the distance that the outer ring surface of described two magnet rings 3 and magnetic conductor are 1 is 2mm.The outer diameter D of magnetic conductor 1 is 10mm.Described support 4 axial motion strokes are 3mm.
Embodiment 4: this routine overall structure is identical with embodiment 1, and different is: the distance that the outer ring surface of described two magnet rings 3 and magnetic conductor are 1 is 0.8mm.The outer diameter D of magnetic conductor 1 is 5mm.Described support 4 axial motion strokes are 1mm.
Embodiment 5: this routine overall structure is identical with embodiment 1, and different is: the distance that the outer ring surface of described two magnet rings 3 and magnetic conductor are 1 is 1.5mm.The outer diameter D of magnetic conductor 1 is 7mm.Described support 4 axial motion strokes are 1.2mm.
Embodiment 6: this routine overall structure is identical with embodiment 1, and different is: the distance that the outer ring surface of described two magnet rings 3 and magnetic conductor are 1 is 1.8mm.The outer diameter D of magnetic conductor 1 is 8mm.Described support 4 axial motion strokes are 2.5mm.
Embodiment 7: this routine overall structure is identical with embodiment 1, and different is: the distance that the outer ring surface of described two magnet rings 3 and magnetic conductor are 1 is 0.5mm.The outer diameter D of magnetic conductor 1 is 4mm.Described support 4 axial motion strokes are 0.8mm.
Claims (7)
1, a kind of micro electromagnetic actuator, it is characterized in that: comprise magnetic conductor, support, coil and two magnet rings, described magnetic conductor is the cylindrical shell that both ends of the surface have the hole, two magnet ring homopolarities are opposite to two ends in the magnetic conductor mutually, between two magnet rings, form air gap as the service area, support one end stretches out outside the magnetic conductor, and an end places between two magnet rings, is wound with coil on the support periphery that places between two magnet rings.
2, micro electromagnetic actuator according to claim 1 is characterized in that: described support constitutes for wheel hub is installed on open tubular column, and during installation, its hollow styletable stretches out outside the magnetic conductor.
3, micro electromagnetic actuator according to claim 1 is characterized in that: described support constitutes for wheel disc is installed on pillar, and during installation, its post ends is stretched out outside the magnetic conductor.
4, micro electromagnetic actuator according to claim 1 is characterized in that: the outer ring surface of described two magnet rings and the distance between magnetic conductor are 0.2-2mm.
5, micro electromagnetic actuator according to claim 1 is characterized in that: described two magnet ring internal diameters are identical with the aperture at magnetic conductor two ends.
6, micro electromagnetic actuator according to claim 1 is characterized in that: the outer diameter D of described magnetic conductor is 3-10mm.
7, micro electromagnetic actuator according to claim 1 is characterized in that: the axial movement travel of described support is 0.2-3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200149167U CN201430521Y (en) | 2009-06-26 | 2009-06-26 | Miniature electromagnetic driver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200149167U CN201430521Y (en) | 2009-06-26 | 2009-06-26 | Miniature electromagnetic driver |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201430521Y true CN201430521Y (en) | 2010-03-24 |
Family
ID=42034260
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200149167U Expired - Fee Related CN201430521Y (en) | 2009-06-26 | 2009-06-26 | Miniature electromagnetic driver |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201430521Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102756297A (en) * | 2012-06-25 | 2012-10-31 | 天津大学 | Electromagnetic driver for carrying out step control by using bidirectional current |
| CN107332425A (en) * | 2017-08-18 | 2017-11-07 | 郑州润华智能设备有限公司 | A kind of magneto reciprocating sliding direct driving device and the motor using the direct driving device |
| CN116609332A (en) * | 2023-07-20 | 2023-08-18 | 佳木斯大学 | Novel tissue embryo pathological section panorama scanning system |
-
2009
- 2009-06-26 CN CN2009200149167U patent/CN201430521Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102756297A (en) * | 2012-06-25 | 2012-10-31 | 天津大学 | Electromagnetic driver for carrying out step control by using bidirectional current |
| CN107332425A (en) * | 2017-08-18 | 2017-11-07 | 郑州润华智能设备有限公司 | A kind of magneto reciprocating sliding direct driving device and the motor using the direct driving device |
| CN107332425B (en) * | 2017-08-18 | 2023-08-22 | 郑州润华智能设备有限公司 | Permanent magnet type reciprocating push-pull direct drive device and motor using same |
| CN116609332A (en) * | 2023-07-20 | 2023-08-18 | 佳木斯大学 | Novel tissue embryo pathological section panorama scanning system |
| CN116609332B (en) * | 2023-07-20 | 2023-10-13 | 佳木斯大学 | Novel tissue embryo pathological section panorama scanning system |
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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: 20100324 Termination date: 20140626 |
|
| EXPY | Termination of patent right or utility model |