WO2004091078A1 - ロータリーアクチュエータ - Google Patents
ロータリーアクチュエータ Download PDFInfo
- Publication number
- WO2004091078A1 WO2004091078A1 PCT/JP2004/004866 JP2004004866W WO2004091078A1 WO 2004091078 A1 WO2004091078 A1 WO 2004091078A1 JP 2004004866 W JP2004004866 W JP 2004004866W WO 2004091078 A1 WO2004091078 A1 WO 2004091078A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- rotor
- stator
- rotor core
- spring
- torque
- Prior art date
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K26/00—Machines adapted to function as torque motors, i.e. to exert a torque when stalled
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
Definitions
- the present invention includes a stator having two permanent magnets, a rotor having two rotor poles, and a rotor having a rotor coil wound around the rotor core.
- the intake air amount of an engine has been adjusted by opening and closing a valve attached to a throttle pod with a DC motor.
- a DC motor When a DC motor is used, the output torque of the motor is amplified 11 times by a two-stage reduction mechanism using spur gears, then the butterfly valve of the throttle body is driven, and the opening angle of the valve is reduced by a thin film resistor and a metal brush.
- a potentio angle detector Is detected by a potentio angle detector consisting of
- backlash due to the spa gear is inevitable, making it difficult to control the valve opening angle accurately.
- the potentiometer for detecting the valve opening angle the thin film resistor and the metal brush slide, which inevitably has an adverse effect on durability, life and accuracy.
- a rotary actuator that does not need to use a gear that causes backlash for the rotation control as described above.
- a stator coil is wound around a stator iron core having a pair of magnetic poles, and a cylindrical rotor is provided around the stator.
- a rotatable actuator that fixes a pair of permanent magnets is provided inside the rotor so as to face the stator core.
- the thickness at both ends is set to be 90% or less of the thickness at the center. In this way, by controlling the thickness of the permanent magnet, no reversing torque is generated in the non-energized torque, and the rotor can always be rotated and moved only to the two target positions. It has become so.
- the rotor stops at a position of 0 ° when no power is supplied, and when the power is supplied, the rotor rotates to a certain angle. ° Return to position. For this reason, the rotor cannot be stopped at any angular position. Therefore, it is impossible for the conventional rotary actuator to control the opening degree of the valve for adjusting the intake air amount of the engine as described above.
- the present invention has been made in view of the above circumstances, and has a simple structure and provides a low-power reactor that can be displaced to an arbitrary rotational angle position in accordance with the magnitude of the exciting current and the direction of conduction. It is intended to be.
- a rotary actuator comprises a stator having a plurality of permanent magnets, a rotor having a rotor core having a plurality of salient poles, and a rotor coil wound around the rotor core.
- the rotor coil When the rotor coil is energized, the relative angular position between the rotor and the stator is changed, and a magnetic torque is generated between the rotor and the stator, which generates a magnetic torque that is almost proportional to the energized current.
- an elastic member that deforms by an amount substantially proportional to the relative angle variation between the rotor and the stator and generates a torque directed in a direction opposite to the magnetic torque.
- the rotary actuator of the above configuration when an exciting current is supplied to the rotor, a magnetic torque that is substantially proportional to the current is generated between the rotor and the stator, and the torque between the rotor and the stator is increased. Varying the relative rotation angle position. As a result, the elastic member is deformed, and stops at an angular position where the generated magnetic torque matches the repulsive force (opposite torque) of the elastic member. Therefore, the rotor or the stator rotates relative to the angle almost in proportion to the magnitude of the supplied exciting current, so that the magnitude of the exciting current and the direction of current flow can be simple with no mechanical structure in various mechanical structures.
- the rotation angle can be controlled arbitrarily according to.
- the terms “rotor” and “stator” are used. However, in the application of the present invention, either the rotor or the stator is fixed or rotated. It is optional.
- the first elastic member to which the magnetic torque directed in one direction of the rotor or the stator is applied, and the magnetic torque directed in the opposite direction of the rotor or the stator are applied. It is preferable to include a second elastic member. Further, if the elastic coefficients of the first and second elastic members are set to be different from each other, the relative rotation angle positions of the rotor and the stator are different even when the current is supplied at the same current value, so that the application range is further expanded.
- first spring driving means to which one end of the coil spring is attached and which rotates together with the rotor when the rotor rotates in one direction to deform the coil spring; and to which the other end of the coil spring is attached and rotates.
- Second spring driving means for rotating together with the rotor when the child rotates in the opposite direction to deform the coil spring.
- the rotor can rotate in any direction to deform (eg, tighten) the coil spring.
- the elastic member is pre-deformed by applying a pre-load, the gap between the parts caused by manufacturing errors and assembly errors of the parts is eliminated, and there is an advantage that there is no play when the rotor starts to rotate. is there.
- the magnetic torque generating section includes a stator having two permanent magnets, a rotor core having two salient poles, and a thickness of a magnetic pole boundary portion of the permanent magnet being 90 to 90% of a thickness of a central portion. 95%, and the distance from the center of the salient pole to the center of rotation of the rotor core should be no more than 99% of the distance from the boundary of the salient pole to the center of rotation of the rotor core. It is desirable that the angle between the connecting line with the rotation center of the rotor core be 100 ° or more.
- the magnetic torque generating section becomes constant in a rotation angle range of 90 ° or more of the rotor core with respect to a constant excitation current to the rotor coil, and is proportional to the excitation current. It becomes big. Also, when the exciting current is applied in the reverse direction, the magnetic torque is in the opposite direction, so that it is possible to displace to an arbitrary rotation angle position with a simple structure according to the magnitude of the exciting current and the direction of conduction.
- the thickness of the magnetic pole boundary of the permanent magnet is made smaller than the thickness of the center, and the distance from the center of the salient pole to the center of rotation of the rotor core is calculated from the boundary of the salient pole to the center of rotation of the rotor core.
- the angle between the connecting lines between the salient pole boundary and the rotation center of the rotor core may be obtuse.
- the opposing surfaces of the rotor core and the permanent magnet may be formed from arc surfaces having different center positions, the opposing surface of the permanent magnet opposing the rotor core may be formed in an elliptical shape, The opposing surface facing the rotor core at the magnetic pole boundary may be formed to have a flat shape.
- the opposing surface of the rotor core opposing the permanent magnet can be formed from arcuate surfaces having different center positions, and a non-magnetized region can be formed at the magnetic pole boundary of the permanent magnet.
- FIG. 1 is a longitudinal sectional view showing a structure of a rotary actuator according to a first embodiment of the present invention.
- FIG. 2 is a view taken along line A—A in FIG.
- FIG. 3 is an axial cross-sectional view showing the structure of the mouth and the actuator according to the first embodiment.
- FIG. 4 is an axial cross-sectional view showing a state in which an exciting current is applied to the rotor coil from the state shown in FIG. 3 and the rotor core rotates 90 °.
- FIG. 5A is a plan view showing the structure of the rotor core
- FIG. 5B is a plan view showing the structure of the permanent magnet.
- FIG. 6 is a graph showing an example of the relationship between the rotational angle position of the rotor and the magnetic torque when the magnitude of the exciting current is changed.
- FIG. 7 is an axial sectional view showing how the rotor core rotates.
- FIG. 8 is a view showing a spring wheel.
- FIG. 8A is a rear view
- FIG. 8B is a longitudinal sectional view
- FIG. 8A is a rear view
- FIG. 8B is a longitudinal sectional view
- FIG. 8A is a rear view
- FIG. 8B is a longitudinal sectional view
- FIG. 8A is a rear view
- FIG. 8B is a longitudinal sectional view
- FIG. 8A is a rear view
- FIG. 8B is a longitudinal sectional view
- FIG. 9 is a view showing a spring drive wheel
- FIG. 9A is a longitudinal sectional view
- FIG. 9B is a plan view
- FIG. 10 is a view showing the rotational angle position of the rotor when the magnitude of the exciting current is changed.
- 5 is a graph showing a relationship between a magnetic torque and an opposite torque by a coil spring.
- FIG. 11 is a longitudinal sectional view showing the structure of a rotary actuator according to a second embodiment of the present invention.
- FIG. 12 is a view taken along line AA of FIG.
- FIG. 13 is a graph showing the relationship between the rotational angle position of the rotor and the magnetic torque and the opposite torque by the coil spring when the magnitude and direction of the exciting current are changed in the second embodiment.
- FIG. 14 is a longitudinal sectional view showing a structure of a rotary actuator according to a third embodiment of the present invention.
- FIG. 15 is a view taken along line AA of FIG.
- FIG. 16 is a view showing the outer peripheral spring ring
- FIG. 16A is a rear view
- FIG. 16B is a longitudinal sectional view
- FIG. 16C is a plan view.
- FIG. 17 is a view showing the inner peripheral spring ring
- FIG. 17A is a longitudinal sectional view
- FIG. 17B is a plan view.
- FIG. 18 is a view showing a spring drive wheel.
- FIG. 18A is a plan view
- FIG. 18B is a vertical sectional view
- FIG. 18C is a rear view.
- FIG. 19 is a graph showing the relationship between the rotation angle of the rotor, the magnetic torque, and the opposite torque generated by the coil spring when the magnitude and direction of the exciting current are changed in the third embodiment.
- FIG. 1 is a longitudinal sectional view showing a structure of a rotary actuator according to a first embodiment of the present invention.
- the magnetic torque generator A and the opposite torque generator B It is roughly constituted from.
- the configuration of the magnetic torque generator will be described.
- 1a and 1b are a pair of permanent magnets, which are fixed to the inner wall surface of a yoke 2 as a stator.
- the permanent magnet la has an N pole on the inside and an S pole on the outside (yoke side), and the permanent magnet lb has an S pole on the inside and an N pole on the outside (yoke side).
- the rotor core 3 has salient poles 3a, 3a, and a rotor coil 5 is wound between the salient poles 3a, 3a.
- a rotating shaft 4 is provided at the center of the rotor core 3.
- FIG. 4 shows a state in which an exciting current is applied to the rotor coil 5 and the rotor core 3 is rotated by 90 °.
- FIGS. 5A and 5B are a plan view showing the structure of the rotor core and a plan view showing the structure of the permanent magnet.
- salient poles 3a, 3a formed on rotor core 3 have a central arc 3b of radius R3 and a boundary arc 3 3 of radius R4. That is, the facing surfaces of the salient poles 3a, 3a facing the permanent magnets la, 1b are formed by arcs having different radii at the center 3b, 3b and the boundary 3f, 3f.
- the centers of the radii R 3 and R 4 of the respective arcs are shifted by a distance G.
- the distance from the center of the salient poles 3a, 3a to the rotation center of the rotor core 3, and the distance from the boundary between the salient poles 3a, 3a to the rotation center of the rotor core 3, To 99% or less.
- the permanent magnets la and lb have a rotor-facing surface arc of radius R1 and an opposite surface arc of radius R2. That is, the wall thickness B at the pole boundary of each of the permanent magnets 1a and 1b is set to be approximately 90 to 95% of the wall thickness A at the center of the magnetic pole. In addition, the center of the arc of the rotor facing surface of the permanent magnets la and 1b and the center of the arc of the opposite surface are shifted by the distance E.
- a cylindrical spring housing 39 is attached to the surface of the holder 6 by a port 20.
- a spring fixing plate 38 is held between the inner peripheral portion of the spring housing 39 and the surface of the holder 6 in a state where relative rotation is prevented.
- a spring wheel 31 is rotatably supported by the rotating shaft 4 on the inner peripheral portion of the spring housing 39.
- convex portions 31a spaced apart from each other by 180 °, and one of the convex portions 31a penetrates the front and back surfaces.
- a hole 31b is formed on the surface of the spring wheel 31.
- the spring wheel 31 is arranged at a distance from the spring fixing plate 38, and a coil spring (elastic member) 36 is attached between the spring wheel 31 and the spring fixing plate 38.
- a coil spring (elastic member) 36 is attached between the spring wheel 31 and the spring fixing plate 38.
- One end of the coil spring 36 is inserted into a hole 31 b of the spring wheel 31, and the other end is inserted into a hole (not shown) formed in the spring fixing plate 38.
- a pair of stoppers 30 a and 30 b adjacent to the spring wheel 31 are arranged 180 ° apart from each other on the inner peripheral portion of the spring housing 39.
- the stoppers 30 a and 30 b are fitted in an array groove 39 a formed in the inner peripheral portion of the spring housing 39.
- the spring wheel 31 is rotatable until its convex portion 31a separates from the stopper 30a and contacts the other stopper 30b. With the rotation, the spring wheel 31 tightens the coil spring 36.
- a spring drive wheel 35 is attached to the rotating shaft 4 adjacent to the spring wheel 3'1.
- reference numeral 34 denotes a key for preventing relative rotation between the rotating shaft 4 and the spring drive wheel 35.
- a pair of convex portions 35 a protruding in the radial direction is provided on the outer peripheral portion of the spring drive wheel 35.
- the spring drive wheel 35 can rotate without being restricted by the stoppers 30a, 30b.
- the rotation locus of the protrusion 35 a overlaps with the protrusion 31 a of the spring wheel 31, when the rotation shaft 4 is rotated to rotate the spring drive wheel 35, the spring drive is performed.
- the protrusion 35 a of the ring 35 comes into contact with the protrusion 31 a of the spring ring 31. As a result, the spring wheel 31 is rotated, and the coil spring 36 is tightened.
- reference numeral 32 denotes a cover, and the cover 32 is attached to the spring housing 39 by a port 33 screwed to the rotating shaft 4.
- This cover 3 denotes a cover, and the cover 32 is attached to the spring housing 39 by a port 33 screwed to the rotating shaft 4.
- Reference numeral 2 denotes stoppers for the stoppers 30a and 30b.
- FIG. 6 is a conceptual diagram showing an example of the relationship between the rotation angle of the rotor and the magnetic torque when the exciting current is changed. As shown in the figure, for a constant exciting current, the rotor core 3
- the magnetic torque is constant over a rotation angle range of 90 ° or more, and the magnetic torque is It can be seen that it increases in proportion to the current (hereinafter, the rotation angle range is called “proportional range”). It can also be seen that when the exciting current is applied in the opposite direction, the magnetic torque is in the opposite direction.
- the thickness of the permanent magnet la, lb at the magnetic pole boundary is 90 to 95% of the thickness at the center, and the salient poles 3a, 3a
- the distance from the center to the center of rotation of rotor core 3 should be less than 99% of the distance from the boundary between salient poles 3a and 3a to the center of rotation of rotor core 3, and salient pole 3a , 3a and the rotation line between the rotor 3 and the center of rotation of the rotor core 3 are set to 100 ° or more, so that when the excitation current is supplied to the rotor coil 5,
- the magnitude and direction of the magnetic torque are proportional to the magnitude and direction of the exciting current in the proportional range of 90 ° or more of the rotor core 3. If no current is supplied, the torque generated by the permanent magnets 1a and 1b is It becomes zero in this proportional range of the rotor core 3.
- Fig. 7 shows that by supplying the excitation current, the rotor core 3 in the rotation angle range of 0 ° to 180 ° in the non-energized Is shown rotating.
- the magnetic torque of the rotor core 3 is proportional to the magnitude of the exciting current in a proportional range of 90 ° or more. Therefore, by applying an opposite torque to the rotor core 3 from the opposite torque generating section B, the excitation current is appropriately selected and applied, so that the rotor core 3 can be rotated at an arbitrary speed within a proportional range of 90 ° or more.
- the excitation current is stopped, the rotor core 3 can be returned to the original position by the opposite torque from the opposite torque generator B.
- the rotor core 3 has a constant exciting current with a constant magnitude in the range of 90 ° from 40 ° to ⁇ 130 ° J.
- the magnetic torque is almost constant. Therefore, the position of 130 ° in FIG. 10 is set as the origin of the rotor core 3.
- the state in which the protrusion 31 a of the spring wheel 31 abuts against the stoppers 30 a and 30 b is the origin position, and when the exciting current is supplied to the coil 5, the rotor core 3 Rotates counterclockwise from the state shown in FIG.
- a preload is applied to the coil spring 36 in the state of the origin position.
- the opposite torque applied to the rotor core 3 from the coil spring 36 by this preload substantially matches the torque generated when an exciting current of 0.15 A is supplied to the coil 5. I have.
- the rotor rotates because the magnetic torque generated between the rotor and the stator increases. However, the rotation of the rotor is transmitted to the spring wheel 31 via the rotation shaft 4 and the spring drive wheel 35, and the spring wheel 31 tightens the coil spring 36. As a result, the opposite torque generated by the coil spring 36 increases, and the rotor stops at an angular position balanced with the torque generated by the rotor.
- the opposite torque of the coil spring 36 with respect to the rotation angle (stroke) of the rotor is shown by a straight line, and the straight line and the exciting current are 0.30 A, 0.45 A, 0.
- the intersection with the rotor's magnetic torque curve at 6 OA indicates the rotation angle (stroke). For example, when the excitation current is 0.6 O A, the rotor rotates 90 ° (130 ° —40 °).
- valve opening angle is proportional to the magnitude of the exciting current, there is no need to use a detection mechanism for detecting the valve opening angle, which has problems in durability, life, and accuracy.
- spur gear deceleration function is not required, costs can be reduced and reliability can be improved.
- high magnetic torque can be obtained with low excitation current, and long-time operation with high magnetic torque is possible.
- inexpensive magnetic materials such as ferrite magnets can be used for permanent magnets, leading to cost reduction.
- FIGS. 8A to 8C and FIGS. 9A and 9B A second embodiment of the present invention will be described with reference to FIGS.
- the mouth of the second embodiment—the evening of the activator is shown in FIGS. 8A to 8C and FIGS. 9A and 9B.
- two spring drive wheels 35 are used to control the rotation of the rotor in two directions. Therefore, since the components of the second embodiment are the same as those of the first embodiment, the description of the individual components will be omitted and only the assembled state will be described.
- stoppers 30a and 30b are arranged at the place where the spring fixing plate 38 of the first embodiment was arranged, and the inner circumferences of the stoppers 30a and 30b are arranged.
- a spring drive wheel 35 is attached to the rotating shaft 4 by a key 34.
- the spring wheel 31 is rotatably supported by the rotating shaft 4 such that the rotation trajectory of the projection 31a overlaps the stoppers 30a, 30b.
- the spring wheel 31 and the spring drive wheel 35 are arranged in the same manner as in the first embodiment with an interval from the spring wheel 31. Both ends of the spring wheel 31 are located between the spring wheels 31.
- a coil spring 36 inserted in each of the holes 31b is interposed.
- the protrusion 31 a of the spring ring 31 on the distal end side is disposed adjacent to the stoppers 30 a, 30 b in a counterclockwise direction, and the inner spring ring
- the 31 convex portion 31a is disposed adjacent to the stoppers 30a and 30b in the clockwise direction.
- the origin position of the rotor is set at 105 °, and the rotor rotates in the direction of 40 ° from the position of 105 °.
- the stroke characteristics when a preload is applied to the coil spring 36 are indicated by a solid line, and the stroke characteristics when no preload is applied are indicated by a broken line.
- the above rotation direction of the rotor is a direction in which the coil spring 36 is rotated counterclockwise as viewed from the distal end side and tightened.
- a third embodiment of the present invention will be described with reference to FIGS.
- the mouth of the third embodiment is different from that of the first embodiment in that two coil springs having different spring constants are used.
- a spring fixing plate 38 is held between the inner peripheral portion of the spring housing 39 and the surface of the holder 6 in a state where relative rotation is prevented.
- An inner peripheral spring wheel 12 is rotatably supported by a rotating shaft 4 on the inner peripheral portion of the spring housing 39.
- convex portions 12 a are formed 180 ° apart from each other, and one convex portion 12 a A hole 12b penetrating through the front and back surfaces is formed.
- the inner peripheral spring ring 1 2 is arranged at an interval from the spring fixing plate 38, and an inner peripheral coil spring (positive member) 11 is provided between the inner peripheral spring ring 12 and the spring fixing plate 38. Installed. One end of the inner peripheral coil spring 11 is inserted into a hole 12 of the inner peripheral spring ring 12, and the other end is inserted into a hole (not shown) formed in the spring fixing plate 38.
- An outer peripheral spring wheel 18 is rotatably supported on the outer periphery of the inner peripheral spring wheel 12. As shown in FIGS. 16A to 16C, on the surface of the outer peripheral spring ring 18 are formed convex portions 18a spaced apart from each other by 180 °, and one convex portion 18a has A hole 18b penetrating through the back surface is formed.
- An outer coil spring (elastic member) 10 having a larger spring constant than the inner coil spring is attached between the outer spring ring 18 and the spring fixing plate 38. One end of the outer peripheral coil spring 10 is inserted into a hole 18 b of the outer peripheral spring ring 18, and the other end is inserted into a hole (not shown) formed in a spring fixing plate 38.
- the inner peripheral portion of the spring housing 39 has an inner peripheral spring wheel 12 and an outer peripheral spring wheel 18. And a pair of adjacent towels 17a and 17b are arranged 180 ° apart from each other.
- the stoppers 17 a and 17 b are fitted in an array groove 39 a formed in the inner peripheral portion of the spring housing 39.
- the convex portion 12 a of the inner peripheral spring ring 12 is disposed adjacent to the stoppers 17 a and 17 b in the counterclockwise direction, and the outer peripheral spring ring 18
- the projection 18a is arranged adjacent to the stoppers 17a and 17b in the clockwise direction.
- the projections 12a and 18a protrude from the stoppers 17a and 17b toward the distal end.
- a spring drive wheel 13 is attached to the tip of the rotating shaft 4. As shown in FIGS. 18A to 18C, a pair of inner circumferential projections 13 a protruding in the axial direction are formed 180 ° apart from each other on one end surface of the spring drive wheel 13. A pair of radially projecting outer circumferential projections 18b are formed 180 ° apart from each other on the outer circumferential portion of the spring drive wheel 13.
- the spring drive wheel 13 is attached to the rotating shaft 4 by a key 34 with the inner peripheral projection 13 a facing inward. Then, in the mounting state shown in FIG. 15 which is a view taken along the line A—A in FIG.
- the inner peripheral convex portion 13 a is adjacent to the convex portion 12 a of the inner peripheral spring ring 12 clockwise
- the outer peripheral projection 13 b is adjacent to the projection 18 a of the outer peripheral spring ring 18 in a counterclockwise direction.
- the origin position of the rotor is set to 120 °, and the rotor rotates in the direction of 45 ° from the position of 120 °.
- the stroke characteristics when a preload is applied to the inner coil spring 11 and the outer coil spring 10 are indicated by solid lines, and the stroke characteristics when no preload is applied are indicated by broken lines.
- the rotation direction of the rotor is a direction in which the inner peripheral coil spring 11 is rotated counterclockwise when viewed from the distal end side and tightened.
- the permanent magnets 1 a and 1 b facing the rotor core 3 are formed.
- the opposing surface and the fixed surface fixed to the yoke 2 are formed from arc surfaces having different center positions.
- the opposing surface of the permanent magnets 1 a and lb opposing the rotor core 3 is an elliptical surface.
- the distance from the center of the salient poles 3a, 3a to the rotation center of the rotor core 3 is defined as the distance from the boundary between the salient poles 3a, 3a to the rotation center of the rotor core 3.
- the opposing surface of the rotor core 3 opposing the permanent magnets 1 a and 1 b is formed from an arc surface with a different center position, but opposes the permanent magnets 1 a and lb
- the opposing surface of the rotor core 3 is formed in an elliptical shape, or the opposing surface of the rotor core 3 facing the permanent magnets 1 a and 1 b at the salient pole boundary is cut into a flat shape. It may be formed.
- the rotor has been described as rotating with respect to the stator.
- the present invention provides a configuration in which the stator rotates with respect to the fixed rotor, and a configuration in which both rotate relatively. Can also be applied.
- the rotary actuary of the present invention Not only valves such as torque valves, pressure regulating valves, proportional bypass valves, etc., but also peripheral devices such as driving drives for convenience stores, automatic cash dispensers, control of laser polarizers, satellite dish antennas and solar power generators It can be applied to various fields such as control of camera direction and control of automatic tracking device of camera.
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
- Permanent Field Magnets Of Synchronous Machinery (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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US10/551,535 US7436094B2 (en) | 2003-04-03 | 2004-04-02 | Rotary actuator |
EP04725491A EP1615320A4 (en) | 2003-04-03 | 2004-04-02 | Rotary actuator |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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JP2003-100862 | 2003-04-03 | ||
JP2003100862A JP3887343B2 (ja) | 2003-04-03 | 2003-04-03 | ロータリーアクチュエータ |
Publications (1)
Publication Number | Publication Date |
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WO2004091078A1 true WO2004091078A1 (ja) | 2004-10-21 |
Family
ID=33156740
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2004/004866 WO2004091078A1 (ja) | 2003-04-03 | 2004-04-02 | ロータリーアクチュエータ |
Country Status (4)
Country | Link |
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US (1) | US7436094B2 (ja) |
EP (1) | EP1615320A4 (ja) |
JP (1) | JP3887343B2 (ja) |
WO (1) | WO2004091078A1 (ja) |
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US7973445B2 (en) * | 2007-08-30 | 2011-07-05 | Woodward Controls Inc. | Laminated rotary actuator with three-dimensional flux path |
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US10815908B2 (en) * | 2015-10-06 | 2020-10-27 | Kohler Co. | Throttle drive actuator for an engine |
JP1553398S (ja) * | 2015-10-09 | 2016-07-11 | ||
JP1552957S (ja) * | 2015-10-09 | 2016-07-04 | ||
JP1553316S (ja) * | 2015-10-09 | 2016-07-04 | ||
US10199912B2 (en) * | 2016-01-26 | 2019-02-05 | Woodward Hrt, Inc. | Torque motor with mechanical flexures establishing armature-to-field gaps |
FR3076119B1 (fr) | 2017-12-21 | 2023-02-10 | Mmt ag | Actionneur a entrainement direct commande en boucle ouverte |
US11199248B2 (en) | 2019-04-30 | 2021-12-14 | Woodward, Inc. | Compact linear to rotary actuator |
KR102052998B1 (ko) * | 2019-06-20 | 2019-12-09 | 디와이오토 주식회사 | 회전 운동을 왕복 각운동으로 변환하는 장치 및 그 장치를 포함한 와이퍼 시스템 |
CN110429782A (zh) * | 2019-07-20 | 2019-11-08 | 中国船舶重工集团公司第七二四研究所 | 可耐受舰载恶劣环境的大负载直驱转台 |
WO2021207482A1 (en) | 2020-04-08 | 2021-10-14 | Woodward, Inc. | Rotary piston type actuator with a central actuation assembly |
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JP2000041372A (ja) * | 1998-05-18 | 2000-02-08 | Aisan Ind Co Ltd | 直流トルクモ―タ、およびこれを用いた駆動制御装置、スロットル弁制御装置 |
JP2001045719A (ja) * | 1999-08-03 | 2001-02-16 | Nippon Mini Motor Kk | 回動アクチュエータ |
JP2002209369A (ja) * | 2000-12-27 | 2002-07-26 | Lg Electronics Inc | 往復揺動式モーター及び該往復揺動式モーターを利用したガス圧縮装置 |
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CH591113A (ja) * | 1975-05-02 | 1977-09-15 | ||
JPS56150963A (en) * | 1980-04-24 | 1981-11-21 | Nippon Soken Inc | Rotary driving device |
GB8811650D0 (en) * | 1988-05-17 | 1988-06-22 | Econocruise Ltd | Improvements in & relating to electromagnetic actuators |
US5038064A (en) * | 1990-08-31 | 1991-08-06 | Briggs & Stratton Corporation | Limited angle rotary actuator |
US5184893A (en) * | 1991-03-25 | 1993-02-09 | Kerr Manufacturing Company | Automatic capsule mixing device |
US5337030A (en) | 1992-10-08 | 1994-08-09 | Lucas Industries, Inc. | Permanent magnet brushless torque actuator |
JP3372068B2 (ja) | 1992-11-10 | 2003-01-27 | 株式会社東芝 | 回転電機 |
JPH0746813A (ja) | 1993-08-05 | 1995-02-14 | Kokusai Gijutsu Kaihatsu Kk | 有極ロータリアクチュエータ |
JPH09163708A (ja) | 1995-12-06 | 1997-06-20 | Toshiba Corp | 永久磁石形回転アクチュエータ |
DE19603592C1 (de) * | 1996-02-01 | 1997-05-15 | Daimler Benz Ag | Ventilsteuerung für eine Brennkraftmaschine |
JP3408096B2 (ja) | 1996-02-23 | 2003-05-19 | 株式会社日立ユニシアオートモティブ | エンジン用弁装置 |
JPH10288051A (ja) | 1997-04-14 | 1998-10-27 | Mikuni Corp | アクチュエータ |
JP2002218724A (ja) | 2001-01-16 | 2002-08-02 | Matsushita Electric Ind Co Ltd | モータ |
KR100529946B1 (ko) * | 2004-01-29 | 2005-11-22 | 엘지전자 주식회사 | 회전공진형 모터 |
-
2003
- 2003-04-03 JP JP2003100862A patent/JP3887343B2/ja not_active Expired - Fee Related
-
2004
- 2004-04-02 WO PCT/JP2004/004866 patent/WO2004091078A1/ja active Application Filing
- 2004-04-02 US US10/551,535 patent/US7436094B2/en not_active Expired - Fee Related
- 2004-04-02 EP EP04725491A patent/EP1615320A4/en not_active Withdrawn
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JPS63249456A (ja) * | 1987-03-31 | 1988-10-17 | Aisin Seiki Co Ltd | 回動角度制御用ロ−タリ−アクチユエ−タ |
JP2000041372A (ja) * | 1998-05-18 | 2000-02-08 | Aisan Ind Co Ltd | 直流トルクモ―タ、およびこれを用いた駆動制御装置、スロットル弁制御装置 |
JP2001045719A (ja) * | 1999-08-03 | 2001-02-16 | Nippon Mini Motor Kk | 回動アクチュエータ |
JP2002209369A (ja) * | 2000-12-27 | 2002-07-26 | Lg Electronics Inc | 往復揺動式モーター及び該往復揺動式モーターを利用したガス圧縮装置 |
Non-Patent Citations (1)
Title |
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See also references of EP1615320A4 * |
Also Published As
Publication number | Publication date |
---|---|
EP1615320A1 (en) | 2006-01-11 |
JP2004312829A (ja) | 2004-11-04 |
US7436094B2 (en) | 2008-10-14 |
JP3887343B2 (ja) | 2007-02-28 |
EP1615320A4 (en) | 2008-07-16 |
US20060181171A1 (en) | 2006-08-17 |
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