DE2343648A1 - Midget DC or stepping motor - determines rotational speed and/or angular position of motor shaft - Google Patents
Midget DC or stepping motor - determines rotational speed and/or angular position of motor shaftInfo
- Publication number
- DE2343648A1 DE2343648A1 DE19732343648 DE2343648A DE2343648A1 DE 2343648 A1 DE2343648 A1 DE 2343648A1 DE 19732343648 DE19732343648 DE 19732343648 DE 2343648 A DE2343648 A DE 2343648A DE 2343648 A1 DE2343648 A1 DE 2343648A1
- Authority
- DE
- Germany
- Prior art keywords
- rotor
- fields
- motor
- angular position
- electric motor
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/26—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors consisting of printed conductors
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
- G01P3/42—Devices characterised by the use of electric or magnetic means
- G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
- G01P3/48—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage
- G01P3/481—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals
- G01P3/486—Devices characterised by the use of electric or magnetic means for measuring angular speed by measuring frequency of generated current or voltage of pulse signals delivered by photo-electric detectors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
- H02K11/21—Devices for sensing speed or position, or actuated thereby
- H02K11/22—Optical devices
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Brushless Motors (AREA)
Abstract
Description
DR. RUDOLF BAUER
Dipl. Ing. HELMUT HUBBUCHDR. RUDOLF BAUER
Dipl. Ing. HELMUT HUBBUCH
755 PFORZHEIM
Weslliche 31 - Leopoldpl. - Tel. (07Ä31) 1O2Ä00 755 PFORZHEIM
Weslliche 31 - Leopoldpl. - Tel. (07Ä31) 1O2Ä00
Portescap La Chaux-de-Fonds (Schweiz)Portescap La Chaux-de-Fonds (Switzerland)
ELEKTRISCHER KLEINSTMOTORSMALL ELECTRIC MOTOR
Die vorliegende Erfindung betrifft einen elektrischen Kleinstmotor/ beispielsweise einen Gleichstrom-oder Schrittschaltmotor .The present invention relates to a miniature electric motor / for example a direct current or stepping motor .
Zur Bestimmung der Drehzahl und/oder der Winkelstellung der Welle von Motoren ist es bekannt, beispielsweise eine Scheibe, die Aussparungen besitzt/ auf der Welle zu befestigen und einen Lichtstrahl damit zu unterbrechen. In dieser Form werden auch eigene Codiergeräte gebaut, deren Welle dann mit der Motorwelle gekoppelt wird.To determine the speed and / or the angular position of the shaft of motors, it is known, for example a Disk that has recesses / to be attached to the shaft and to interrupt a light beam with it. In Coding devices are also built in this form, the shaft of which is then coupled to the motor shaft.
Diese bekannten Anordnungen sind mit dem Nachteil behaftet, dass sie Platz auf der Welle oder, im Fall einer Ankoppelung, sogar neben dem Motor, beanspruchen, was sich gerade in den Anwendungsgebieten von Kleinstmotoren sehr störend auswirkt, und dass ferner eine Vergrösserung des Trägheitsmoments der Motorwelle erfolgt, die eine Beschränkung der Drehzahl ergibt.These known arrangements have the disadvantage that they take up space on the shaft or, in the case of a coupling, even next to the engine, which has a very disruptive effect, especially in the areas of application of miniature engines, and that also an increase in the moment of inertia the motor shaft takes place, which results in a limitation of the speed.
Aufgabe der Erfindung ist es, einen elektrischen Kleinstmotor zu schaffen, der mit einer Vorrichtung zur BestimmungThe object of the invention is to create a miniature electric motor with a device for determining
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der Drehzahl und/oder der Winkelstellung der Motorwelle versehen ist, mit welcher die erwähnten Nachteile vermieden werden.the speed and / or the angular position of the motor shaft is provided with which the disadvantages mentioned are avoided.
Der erfindungsgemässe Kleinstmotor ist dadurch gekennzeichnet, dass sein Rotor mindestens eine koaxiale, ringförmige Anordnung von in Umfangsrichtung des Rotors abwechselnden Feldern unterschiedlichen Reflexionsvermögens aufweist und eine optische, auf das Reflexionsvermögen dieser Felder ansprechende Abtastvorrichtung feststehend angeordnet ist.The miniature motor according to the invention is characterized by that its rotor has at least one coaxial, annular arrangement of alternating in the circumferential direction of the rotor Fields of different reflectivity and an optical, on the reflectivity This field responsive scanning device is fixedly arranged.
Bei einer solchen Anordnung dient der Rotor selbst als Codierorgan und es wird eine zusätzliche Belastung der Welle oder eine merkliche Vergrösserung der Masse der Welle vermieden.In such an arrangement, the rotor itself serves as a coding element and there is an additional burden on the Wave or a noticeable increase in the mass of the wave avoided.
Ferner wird der Platzbedarf bei einer solchen Anordnung und bei Verwendung einer auf das Reflexionsvermögen ansprechenden Abtastvorrichtung auf einMinimum reduziert. Insbesondere kann der Motor samt Abtastvorrichtung als Baueinheit von kleinsten Abmessungen ausgeführt werden.Furthermore, the space requirement with such an arrangement and when using one which is responsive to the reflectivity becomes Scanner reduced to a minimum. In particular, the motor including the scanning device as a structural unit of the smallest dimensions.
Die beiliegende Zeichnung zeigt in den Figuren 1 bis 3 schematisch drei Beispiele von Rotorausführungen für den erfindungsgemässen Motor.The accompanying drawing shows in Figures 1 to 3 schematically three examples of rotor designs for the engine according to the invention.
In Fig. 1 ist ein im wesentlichen zylindrischer Rotor an seiner Stirnseite mit einer kreisringförmigen Anordnung von hellen und dunklen Feldern versehen, die einander in Umfangsrichtung abwechseln. Die Felder können insbesondere aufgemalt oder auf einer aufgeklebten Folie angeordnet sein.In Fig. 1, a substantially cylindrical rotor is on its end face with an annular arrangement provided with light and dark fields that alternate in the circumferential direction. The fields can in particular painted on or arranged on a glued-on film.
Die Abtastung erfolgt nach dem Reflexionsprinzip mit Hilfe einer feststehenden, beispielsweise im Stator oder im Gehäuse des Motors untergebrachten, einen Lichtsender 3 undThe scanning takes place according to the reflection principle with the help of a stationary one, for example in the stator or in the housing the motor housed, a light transmitter 3 and
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einen Lichtempfänger 4 enthaltenden Abtastvorrichtung. Die im Empfänger 4 entstehenden Abtast-Impulse werden dann in bekannter Weise weiterverarbeitet.a scanning device containing a light receiver 4. The scanning pulses produced in the receiver 4 are then transferred to further processed in a known manner.
Fig. 2 zeigt einen als Glockenanker ausgebildeten Rotor 5, der auf seiner zylindrischen Mantelfläche, d.h. seitlich am Umfang, eine kreiszylindrisch-ringförmige Anordnung 6 von hellen und dunklen Abtastfeldern aufweist, welche von der Seite her mit Hilfe analoger Abtastorgane 3, 4 wie in Fig. 1 abgetastet werden.Fig. 2 shows a rotor 5 designed as a bell armature, on its cylindrical outer surface, i.e. laterally on the circumference, a circular cylindrical-ring-shaped arrangement 6 of has light and dark scanning fields, which from the side with the help of analog scanning elements 3, 4 as in Fig. 1 are scanned.
In Fig. 3 ist schematisch ein scheibenförmiger Rotor 7 dargestellt, der eine nicht gezeichnete gedruckte Wicklung aufweist und auf einer der Oberflächen zusätzlich mit einer kreisringförmigen Abtastzone 8 versehen ist. Diese Abtastzone kann ebenfalls in der Technik der gedruckten Schaltungen ausgeführt sein oder auch, wie in Fig. 1,beispielsweise durch Aufkleben oder Aufmalen hergestellt sein. Die Abtastorgane 3, 4 sind nach dem selben Prinzip wie in Fig. 1 gestaltet.In Fig. 3, a disk-shaped rotor 7 is shown schematically, which has a printed winding, not shown and is additionally provided with an annular scanning zone 8 on one of the surfaces. This scanning zone can also be made in the art of printed circuits or, as in Fig. 1, for example be made by sticking or painting on. The scanning elements 3, 4 are based on the same principle as in FIG. 1 designed.
Der Einfachheit halber wurde in den verschiedenen Ausführungsbeispielen nur ein einziger Ring zeichnerisch dargestellt, während in der Praxis oft zwei oder mehr konzentrische bzw. koaxiale, nebeneinanderliegende Ringe.verwendet werden.For the sake of simplicity, in the various exemplary embodiments only a single ring shown in the drawing, while in practice often two or more concentric ones or coaxial, adjacent rings. used will.
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Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19732343648 DE2343648A1 (en) | 1973-08-30 | 1973-08-30 | Midget DC or stepping motor - determines rotational speed and/or angular position of motor shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19732343648 DE2343648A1 (en) | 1973-08-30 | 1973-08-30 | Midget DC or stepping motor - determines rotational speed and/or angular position of motor shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE2343648A1 true DE2343648A1 (en) | 1975-03-13 |
Family
ID=5891066
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE19732343648 Pending DE2343648A1 (en) | 1973-08-30 | 1973-08-30 | Midget DC or stepping motor - determines rotational speed and/or angular position of motor shaft |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE2343648A1 (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2552738A1 (en) * | 1975-11-25 | 1977-05-26 | Bosch Gmbh Robert | Contactless optical revolution rate measurement - uses foil body markings reflecting light in direction of incidence with photocell clear of dirt |
| DE2936894A1 (en) * | 1979-09-12 | 1981-04-02 | Siemens AG, 1000 Berlin und 8000 München | Opto-electronic rotation regulator for electric motor - has feedback loop with actual rotation detected optically and converted into pulse signal |
| FR2468910A1 (en) * | 1979-11-03 | 1981-05-08 | Lucas Industries Ltd | Rotation and axial displacement transducer - has single sensor and tapered cylindrical member attached to component being measured |
| DE3420807A1 (en) * | 1984-06-04 | 1985-12-05 | Siemens AG, 1000 Berlin und 8000 München | Device for detecting the rotational speed of an electric machine |
| DE3641538A1 (en) * | 1986-12-05 | 1988-06-09 | Heidelberger Druckmasch Ag | DEVICE FOR DETECTING THE SPEED OF A BRUSHLESS DC MOTOR |
| DE3809454A1 (en) * | 1987-03-30 | 1988-10-20 | Kollmorgen Corp | OPTICAL LIGHT GUIDE SENSOR DEVICE FOR AN ELECTRIC MOTOR |
| DE3918152A1 (en) * | 1989-06-03 | 1990-12-06 | Vdo Schindling | Eddy current measurement mechanism for vehicle engine speed - has body moved by eddy current induction, plastic magnetic body holder with optical zones forming light barrier |
| DE3935450C1 (en) * | 1989-10-25 | 1991-05-23 | Heidelberger Druckmaschinen Ag, 6900 Heidelberg, De | |
| WO1999060412A1 (en) * | 1998-05-20 | 1999-11-25 | Westwind Air Bearings Ltd. | Rotary shaft speed control |
| CN104716785A (en) * | 2015-03-26 | 2015-06-17 | 广州日滨科技发展有限公司 | Motor and motor rotor position detection method |
| CN105871164A (en) * | 2016-04-18 | 2016-08-17 | 江苏华源防爆电机有限公司 | Servo motor for robot |
| CN109764952A (en) * | 2019-01-24 | 2019-05-17 | 甘特科技(北京)有限公司 | A kind of detection of dither axis, rotating speed measurement method and device |
| CN110768596A (en) * | 2019-11-08 | 2020-02-07 | 北京北方华创微电子装备有限公司 | Position calibration device of stepping motor, radio frequency matcher and semiconductor equipment |
-
1973
- 1973-08-30 DE DE19732343648 patent/DE2343648A1/en active Pending
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2552738A1 (en) * | 1975-11-25 | 1977-05-26 | Bosch Gmbh Robert | Contactless optical revolution rate measurement - uses foil body markings reflecting light in direction of incidence with photocell clear of dirt |
| DE2936894A1 (en) * | 1979-09-12 | 1981-04-02 | Siemens AG, 1000 Berlin und 8000 München | Opto-electronic rotation regulator for electric motor - has feedback loop with actual rotation detected optically and converted into pulse signal |
| FR2468910A1 (en) * | 1979-11-03 | 1981-05-08 | Lucas Industries Ltd | Rotation and axial displacement transducer - has single sensor and tapered cylindrical member attached to component being measured |
| DE3420807A1 (en) * | 1984-06-04 | 1985-12-05 | Siemens AG, 1000 Berlin und 8000 München | Device for detecting the rotational speed of an electric machine |
| DE3641538A1 (en) * | 1986-12-05 | 1988-06-09 | Heidelberger Druckmasch Ag | DEVICE FOR DETECTING THE SPEED OF A BRUSHLESS DC MOTOR |
| FR2607932A1 (en) * | 1986-12-05 | 1988-06-10 | Heidelberger Druckmasch Ag | DEVICE FOR DETECTING THE ROTATION SPEED OF A BRUSHLESS DC MOTOR IN PARTICULAR |
| DE3809454A1 (en) * | 1987-03-30 | 1988-10-20 | Kollmorgen Corp | OPTICAL LIGHT GUIDE SENSOR DEVICE FOR AN ELECTRIC MOTOR |
| DE3918152A1 (en) * | 1989-06-03 | 1990-12-06 | Vdo Schindling | Eddy current measurement mechanism for vehicle engine speed - has body moved by eddy current induction, plastic magnetic body holder with optical zones forming light barrier |
| DE3935450C1 (en) * | 1989-10-25 | 1991-05-23 | Heidelberger Druckmaschinen Ag, 6900 Heidelberg, De | |
| US5109969A (en) * | 1989-10-25 | 1992-05-05 | Heidelberger Druckmaschinen Ag | Jaw clutch |
| WO1999060412A1 (en) * | 1998-05-20 | 1999-11-25 | Westwind Air Bearings Ltd. | Rotary shaft speed control |
| CN104716785A (en) * | 2015-03-26 | 2015-06-17 | 广州日滨科技发展有限公司 | Motor and motor rotor position detection method |
| CN104716785B (en) * | 2015-03-26 | 2017-05-10 | 广州日滨科技发展有限公司 | Motor and motor rotor position detection method |
| CN105871164A (en) * | 2016-04-18 | 2016-08-17 | 江苏华源防爆电机有限公司 | Servo motor for robot |
| CN109764952A (en) * | 2019-01-24 | 2019-05-17 | 甘特科技(北京)有限公司 | A kind of detection of dither axis, rotating speed measurement method and device |
| CN110768596A (en) * | 2019-11-08 | 2020-02-07 | 北京北方华创微电子装备有限公司 | Position calibration device of stepping motor, radio frequency matcher and semiconductor equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OHA | Expiration of time for request for examination |