EP2891929B1 - Magnetischer oder elektrostatischer Resonator - Google Patents

Magnetischer oder elektrostatischer Resonator Download PDF

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Publication number
EP2891929B1
EP2891929B1 EP14186652.5A EP14186652A EP2891929B1 EP 2891929 B1 EP2891929 B1 EP 2891929B1 EP 14186652 A EP14186652 A EP 14186652A EP 2891929 B1 EP2891929 B1 EP 2891929B1
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EP
European Patent Office
Prior art keywords
mobile component
timepiece
resonator
mobile
drive member
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.)
Active
Application number
EP14186652.5A
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English (en)
French (fr)
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EP2891929A2 (de
EP2891929A3 (de
Inventor
Marc Stranczl
Gianni Di Domenico
Pascal Winkler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nivarox Far SA
Original Assignee
Nivarox Far SA
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from EP13199427.9A external-priority patent/EP2887157B1/de
Priority claimed from EP14184158.5A external-priority patent/EP2889701B1/de
Priority claimed from EP14185638.5A external-priority patent/EP2998801A1/de
Priority to EP14186652.5A priority Critical patent/EP2891929B1/de
Application filed by Nivarox Far SA filed Critical Nivarox Far SA
Priority to PCT/EP2014/076991 priority patent/WO2015096976A2/fr
Priority to RU2016130281A priority patent/RU2624713C1/ru
Priority to US15/102,389 priority patent/US9651920B2/en
Priority to CN201480070592.2A priority patent/CN105849653B/zh
Priority to JP2016541686A priority patent/JP6166847B2/ja
Publication of EP2891929A2 publication Critical patent/EP2891929A2/de
Publication of EP2891929A3 publication Critical patent/EP2891929A3/de
Publication of EP2891929B1 publication Critical patent/EP2891929B1/de
Application granted granted Critical
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Anticipated expiration legal-status Critical

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Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C5/00—Electric or magnetic means for converting oscillatory to rotary motion in time-pieces, i.e. electric or magnetic escapements
    • G04C5/005—Magnetic or electromagnetic means
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B17/00—Mechanisms for stabilising frequency
    • G04B17/32—Component parts or constructional details, e.g. collet, stud, virole or piton

Definitions

  • the invention relates to a clock resonator comprising a mobile ring around an axis and arranged able to oscillate, and a trainer subjected to a torque in a watch movement.
  • the invention also relates to a watchmaking movement comprising, fixed on a plate, energy storage means arranged to deliver said torque to an actuating train of a mechanism comprising such an annular resonator, with a said fixed mobile by flexible blades to said platen, and a said trainer driven by said train, said trainer controlling means for displaying said movement.
  • the invention also relates to a timepiece comprising such a movement.
  • the invention relates to the field of the regulation of mechanical timepieces, in particular mechanical watches.
  • the document FR2132162 in the name of HORSTMANN MAGNETICS describes magnetic drive and exhaust mechanisms for rotor, in which the coupling existing between a mechanically oscillating member and a rotor is purely magnetic and without mechanical interaction.
  • the rotor comprises a disc made of ferromagnetic material and having on its entire periphery an even number of spokes or arms regularly distributed, and shaped so that the outer ends of each pair of arms or neighboring radii circumferentially are offset in an axial direction relative to the plane of symmetry perpendicular to the axis of rotation of the rotor.
  • the mechanism comprises an oscillating member, such a rotor whose axis of rotation is parallel to the oscillation direction of the oscillating member, and an annular magnetic member carried by the oscillating member and at least partially surrounding the periphery of the rotor , this rotor being magnetically coupled with the poles of the magnetic member so that the rotational driving moments oriented in the same direction as the rotation are exerted on the rotor at a large number of positions around the periphery of the rotor when oscillation of the oscillating organ.
  • an oscillating member such a rotor whose axis of rotation is parallel to the oscillation direction of the oscillating member
  • an annular magnetic member carried by the oscillating member and at least partially surrounding the periphery of the rotor , this rotor being magnetically coupled with the poles of the magnetic member so that the rotational driving moments oriented in the same direction as the rotation are exerted on the rotor at a large number of positions around the periphery of
  • the document BE530509A in the name of PHILIPS describes a device for stabilizing the speed of a motor, where this motor is loaded at least by a mechanical resonance system operating in the vicinity of its resonant frequency, the system of which the resisting torque, strongly increasing at the resonance, has a stabilizing effect on the rotational speed of the motor.
  • the invention proposes to create mechanisms that have a higher efficiency than conventional resonators.
  • the invention relates to a clock resonator according to claim 1.
  • the invention also relates to a watchmaking movement comprising, fixed on a plate, energy storage means arranged to deliver said torque to an actuating train of a mechanism comprising such an annular resonator, with a said fixed mobile by flexible blades to said platen, and a said trainer driven by said train, said trainer controlling means for displaying said movement.
  • the invention also relates to a timepiece comprising such a movement, characterized in that this piece is a watch.
  • the invention can be implemented with magnetic or electrostatic fields and is more particularly illustrated in a magnetic variant.
  • the invention relates to a clock resonator 6, comprising a mobile 7 arranged able to oscillate about an axis A, and a driver 8 subjected to a torque in a watch movement 10.
  • this resonator is a substantially annular magnetic or electrostatic resonator 6, the mobile 7 of which is excited periodically under the action induced by the movement of the driver 8, which driver 8 is arranged to exert an effort without contact on the mobile 7.
  • the mobile 7 is flexible and deformable at least in a plane perpendicular to the axis A, and mobile 7 comprises a first magnetic zone or electrified in a first step, and the driver 8 has a second magnetized zone or electrified according to a second no different from said first step, arranged to cooperate in attraction or repulsion with this first zone, so that the mobile 7 and the driver 8 together constitute a gear reduction mechanism or multiplier.
  • the interaction can be between a magnetic element, respectively electrified, and a conductive track, or dielectric respectively.
  • the mobile 7 comprises a first quantity of first magnetic or electrically polar masses 76 in a first step
  • the driver 8 comprises a second quantity of second magnetized polar masses 86 or electrified according to a second step different from the first step.
  • These second polar masses 86 are arranged to cooperate in attraction or repulsion with the first polar masses 76, so that the mobile 7 and the driver 8 together constitute a gear reduction mechanism or multiplier.
  • the first amount differs from the second amount.
  • the first quantity differs from the second quantity by one unit.
  • the speed of the driver 8 defines a speed of propagation of a wave of deformation in the material of the mobile 7 all around thereof.
  • the speed of the driver 8 defines a stationary oscillation wave of the mobile 7 between repetitive forms corresponding to stationary modes.
  • the movement of the driver 8 comprises at least one pivoting movement.
  • the movement of the driver 8 is a pivoting movement about the axis A.
  • the mobile 7 is fixed to a plate 5 that includes the watch movement 10 by a plurality of flexible blades 9.
  • these flexible blades 9 are more flexible than the mobile 7, arranged to hold the mobile 7 substantially centered on the axis A, and to restrict the oscillatory movements of the mobile 7 in the same plane P perpendicular to said axis A with limited displacements of the center of inertia of the mobile 7 lower than one tenth of the smallest outer dimension of the mobile 7 in the plane P.
  • these flexible blades 9 are more rigid than the mobile 7, arranged to maintain the mobile 7 substantially centered on the axis A, and to restrict the movements of the mobile 7 in a plane P perpendicular to said axis A with displacements limited to the center of inertia of the mobile 7 less than one-tenth of the smallest outer dimension of the mobile 7 in the plane P.
  • the mobile 7 is weighted on its periphery, continuously or periodically.
  • the mobile 7 is ballasted by a plurality of weights.
  • the mobile 7 has sections and / or variable thickness along its periphery.
  • the mobile 7 is made of micro-machinable material or silicon and has a rectangular section in any plane passing through the axis A.
  • the mobile 7 is monobloc with a plurality of flexible blades 9 connecting with a plate 5 that includes the watch movement 10.
  • the mobile 7 is in one piece with the plurality of flexible blades 9 and with the plate 5.
  • the mobile 7 has, in an unconstrained free state, a polygonal or multi-lobed shape in a plane P orthogonal to the axis A.
  • the mobile 7 is a ring coaxial with the coach 8.
  • the mobile 7 is a solid at least partially deformable in the direction of the axis A
  • the invention also relates to a clockwork movement 10 comprising, fixed on a plate 5, energy storage means 3, in particular a cylinder, arranged to deliver torque to an actuating gear 2 of a mechanism 1 comprising such an annular resonator 6, with such a mobile 7 fixed by flexible blades 9 to the plate 5, and such a driver 8, including an escape wheel, driven by the gear 2, the driver 8 preferably controlling means display 4 of the movement 10.
  • the invention also relates to a timepiece 100 comprising a movement 10.
  • this timepiece 100 is a watch.
  • the mobile 7 comprises first polar masses 76, and the driver 8 comprises second polar masses 86.
  • the number of polar masses on each structure is chosen so that, for a given angle of the driver 8, the masses polar at 12h and 6h of the mobile 7 and coach 8 are opposite each other and the polar masses at 3am and 9am are not opposite each other. For a low angular rotation e of the driver 8, the alignments are reversed.
  • the first polar masses 76 and the second polar masses 86 are aligned.
  • the first polar masses 76 and the second polar masses 86 are not aligned.
  • the alignments are reversed.
  • the polar masses are made with magnets:
  • the driver 8 is polarized radially outwardly and the mobile 7 is polarized radially towards the axis A.
  • the polar masses are aligned, they repel each other.
  • the polar masses are misaligned, they attract each other.
  • FIGS 9 to 11 similar to Figures 6 to 8 , show that by removing polar masses on the mobile 7, we can choose where we want to locate the interaction forces between the two elements.
  • the Figures 12 to 14 go further by keeping only four pairs of first polar masses 76 on the mobile 7, at 90 ° from each other.
  • FIGS 15 and 16 illustrate a first variant of the invention, which consists in using the principle described above to excite a mobile 7 in the form of a partial ring so that it resonates in so-called wineglass mode: the driver 8 synchronizes with the oscillations of the mobile 7 There is no mechanical interaction between the trainer 8 and the mobile 7.
  • the figure 15 is a diagram of the mechanism, where the ring-shaped mobile 7 is only excited at 12h, 3h, 6h and 9h.
  • the figure 16 illustrates its resonance mode in ellipses of variable eccentricity with permutation of the axes.
  • the figure 15A is a variant of the realization of the figure 15 , comprising anti-stall limiting means in the form of mechanical stops.
  • a toothed wheel 40 is secured to the driver 8, and the mobile 7 comprises stops in the form of pins 41.
  • these pins 41 oscillate with the mobile 7, without touching the toothed wheel 40.
  • the drive disc 8 tends to race and turn faster, but then the pins 41 collide with the toothed wheel 40, which avoid runaway.
  • FIGs 17 and 18 illustrate a second variant, which consists in using the principle described above with a mobile 7 in the form of a complete ring, for an excitation mode said hula-hop.
  • the figure 17 is a diagram of the mechanism, where the ring-shaped mobile 7 is excited over its entire circumference, the figure 18 illustrates its particular mode of resonance.
  • a third variant illustrated in figure 19 consists in stacking the driver 8 and the mobile 7, in order to oscillate the mobile 7 in three-dimensional, at least partially in the direction of the axis A, in height, according to the same principle as the first variant.
  • the disc thus takes a form of chips, as visible in figure 20 .
  • a fourth variant (not shown) is the off-plan version of the second variant very close to the third variant.
  • Another variant not illustrated, comprises a driver 8 which, instead of point magnets, has a track that interacts with magnets on the vibrating mobile 7, in the same way as with a magnet-magnets cooperation.
  • the invention makes it possible to eliminate the contacts in the regulating organ, makes it possible to obtain a better quality factor, and increases the efficiency.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromechanical Clocks (AREA)

Claims (20)

  1. Uhrenresonator (6), umfassend ein ringförmiges Drehteil (7) um eine Achse (A), das fähig ist, um diese Achse (A) zu schwingen, und einen Mitnehmer (8), der in einem Uhrwerk (10) einem Drehmoment unterliegt, dadurch gekennzeichnet, dass der Resonator ein im Wesentlichen ringförmiger, magnetischer oder elektrostatischer Resonator (6) ist, dessen Drehteil (7) unter der durch die Bewegung des Mitnehmers (8) hervorgerufenen Einwirkung periodisch angeregt wird, wobei der Mitnehmer (8) dafür ausgelegt ist, auf das Drehteil (7) kontaktlos eine Kraft auszuüben, wobei das Drehteil (7) biegsam und zumindest in einer Ebene (P), die zu der Achse (A) senkrecht ist und in der das Drehteil (7) schwingt, verformbar ist, und das Drehteil (7) gemäß einer ersten Teilung einen ersten magnetischen oder elektrisch geladenen Bereich aufweist und wobei der Mitnehmer (8) gemäß einer von der ersten Teilung verschiedenen zweiten Teilung einen zweiten magnetisierten oder elektrisch geladenen Bereich aufweist, der dafür ausgelegt ist, mit dem ersten Bereich anziehend oder abstoßend zusammenzuwirken, derart, dass das Drehteil (7) und der Mitnehmer (8) zusammen ein Drehzahluntersetzungs- oder Drehzahlübersetzungsgetriebe bilden, und dadurch gekennzeichnet, dass die Drehzahl des Mitnehmers (8) eine Ausbreitungsgeschwindigkeit einer Verformungswelle in dem Material des Drehteils (7) vollständig um es herum definiert und eine stationäre Welle der Schwingungen des Drehteils (7) zwischen sich wiederholenden Formen, die stationären Moden entsprechen, definiert.
  2. Uhrenresonator (6) nach Anspruch 1, dadurch gekennzeichnet, dass das Drehteil (7) gemäß einer ersten Teilung eine erste Menge erster magnetischer oder elektrisch geladener polarer Massen (76) umfasst und dass der Mitnehmer (8) gemäß einer von der ersten Teilung verschiedenen zweiten Teilung eine zweite Menge zweiter magnetischer oder elektrisch geladener polarer Massen (86) umfasst, die dafür ausgelegt sind, mit den ersten polaren Massen (76) anziehend oder abstoßend zusammenzuwirken, derart, dass das Drehteil (7) und der Mitnehmer (8) zusammen ein Drehzahluntersetzungs- oder Drehzahlübersetzungsgetriebe bilden.
  3. Uhrenresonator (6) nach Anspruch 2, dadurch gekennzeichnet, dass sich die erste Menge von der zweiten Menge unterscheidet.
  4. Uhrenresonator (6) nach Anspruch 3, dadurch gekennzeichnet, dass sich die erste Menge von der zweiten Menge um eine Einheit unterscheidet.
  5. Uhrenresonator (6) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Bewegung des Mitnehmers (8) mindestens eine Drehbewegung umfasst.
  6. Uhrenresonator (6) nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass die Bewegung des Mitnehmers (8) eine Drehbewegung um die Achse (A) ist.
  7. Uhrenresonator (6) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Drehteil (7) an einer Platine (5), die das Uhrwerk (10) aufweist, durch eine Mehrzahl von biegsamen Plättchen (9) befestigt ist, die nachgiebiger als das Drehteil (7) sind und dafür ausgelegt sind, das Drehteil (7) im Wesentlichen zentriert auf die Achse (A) zu halten und die Bewegungen des Drehteils (7) in derselben Ebene (P) senkrecht zu der Achse (A) mit begrenzten Verlagerungen des Trägheitszentrums des Drehteils (7), die kleiner als ein Zehntel der kleinsten äußeren Abmessungen des Drehteils (7) in der Ebene (P) sind, zu beschränken.
  8. Uhrenresonator (6) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Drehteil (7) an einer Platine (5), die das Uhrwerk (10) aufweist, durch eine Mehrzahl von biegsamen Plättchen (9) befestigt ist, die starrer als das Drehteil (7) sind und dafür ausgelegt sind, dass Drehteil (7) im Wesentlichen zentriert auf die Achse (A) zu halten und die Bewegungen des Drehteils (7) in derselben Ebene (P) senkrecht zu der Achse (A) mit begrenzten Verlagerungen des Trägheitszentrums des Drehteils (7), die kleiner als ein Zehntel der kleinsten äußeren Abmessungen des Drehteils (7) in der Ebene (P) sind, zu beschränken.
  9. Uhrenresonator (6) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Drehteil (7) an seinem Umfang durchgehend oder periodisch beschwert ist.
  10. Uhrenresonator (6) nach den vorhergehenden Anspruch, dadurch gekennzeichnet, dass das Drehteil (7) durch eine Mehrzahl von Gewichtchen beschwert ist.
  11. Uhrenresonator (6) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Drehteil (7) längs seines Umfangs unterschiedliche Querschnitte und/oder Dicken aufweist.
  12. Uhrenresonator (6) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Drehteil (7) aus einem mikrobearbeitbaren Material oder aus Silicium besteht und in jeder Ebene, die durch die Achse (A) verläuft, einen rechtwinkligen Querschnitt besitzt.
  13. Uhrenresonator (6) nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass das Drehteil (7) mit einer Mehrzahl von biegsamen Plättchen (9) für die Verbindung mit einer Platine (5), die das Uhrwerk (10) aufweist, einteilig ausgebildet ist.
  14. Uhrenresonator (6) nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass das Drehteil (7) mit mehreren flexiblen Plättchen (9) und mit der Platine (5) einteilig ausgebildet ist.
  15. Uhrenresonator (6) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Drehteil (7) in einem unbelasteten freien Zustand in einer Ebene (P) senkrecht zu der Achse (A) eine polygone oder mehrlappige Form hat.
  16. Uhrenresonator (6) nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Mitnehmer (8) auf einem zweiten Niveau parallel zu jenem der zweiten polaren Massen (86) ein mit dem Mitnehmer (8) fest verbundenes gezahntes Rad (40) aufweist und dass das Drehteil (7) Anschläge in Form von Stiften (41) aufweist, die im Normalbetrieb mit dem Drehteil (7) schwingen, ohne das gezahnte Rad (40) zu berühren, und im Fall einer Abweichung in das gezahnte Rad (40) einhaken, um jegliches Durchdrehen zu verhindern.
  17. Uhrenresonator (6) nach einem der Ansprüche 1 bis 16, dadurch gekennzeichnet, dass das Drehteil (7) ein zu dem Mitnehmer (8) koaxialer Ring ist.
  18. Uhrenresonator (6) nach einem der Ansprüche 1 bis 17, dadurch gekennzeichnet, dass das Drehteil (7) ein Festkörper ist, der in Richtung der Achse (A) zumindest teilweise verformbar ist.
  19. Uhrwerk (10), umfassend ein an einer Platine (5) befestigtes Energiespeichermittel (3), das dafür ausgelegt ist, das Drehmoment an ein Räderwerk (2) für die Betätigung eines Uhrenresonators (6) zu liefern, der einen ringförmigen Resonator (6) nach einem der vorhergehenden Ansprüche mit einem Drehteil (7), das durch biegsame Plättchen (9) an der Platine (5) befestigt ist, und einen Mitnehmer (8), der durch das Räderwerk (2) angetrieben wird, umfasst, wobei der Mitnehmer (8) Anzeigemittel (4) des Werks (10) steuert.
  20. Zeitmessgerät (100), umfassend ein Werk (10) nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass es eine Uhr ist.
EP14186652.5A 2013-12-23 2014-09-26 Magnetischer oder elektrostatischer Resonator Active EP2891929B1 (de)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP14186652.5A EP2891929B1 (de) 2013-12-23 2014-09-26 Magnetischer oder elektrostatischer Resonator
JP2016541686A JP6166847B2 (ja) 2013-12-23 2014-12-09 磁気的及び／又は静電気的な共振器
PCT/EP2014/076991 WO2015096976A2 (fr) 2013-12-23 2014-12-09 Resonateur magnetique ou electrostatique
CN201480070592.2A CN105849653B (zh) 2013-12-23 2014-12-09 磁性和/或静电谐振器
RU2016130281A RU2624713C1 (ru) 2013-12-23 2014-12-09 Магнитный и/или электростатический резонатор
US15/102,389 US9651920B2 (en) 2013-12-23 2014-12-09 Magnetic and/or electrostatic resonator

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
EP13199427.9A EP2887157B1 (de) 2013-12-23 2013-12-23 Optimierte uhrhemmung
EP14184158.5A EP2889701B1 (de) 2013-12-23 2014-09-09 Synchronisierungsmechanismus für Uhrwerk
EP14185638.5A EP2998801A1 (de) 2014-09-19 2014-09-19 Magnetische Ankerhemmung, und Gangeinstellvorrichtung eines Uhrwerks
EP14186652.5A EP2891929B1 (de) 2013-12-23 2014-09-26 Magnetischer oder elektrostatischer Resonator

Publications (3)

Publication Number Publication Date
EP2891929A2 EP2891929A2 (de) 2015-07-08
EP2891929A3 EP2891929A3 (de) 2016-07-06
EP2891929B1 true EP2891929B1 (de) 2017-11-22

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EP14186652.5A Active EP2891929B1 (de) 2013-12-23 2014-09-26 Magnetischer oder elektrostatischer Resonator

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3627242B1 (de) 2018-09-19 2021-07-21 The Swatch Group Research and Development Ltd Optimierter magnetomechanischer uhrhemmungsmechanismus

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE530509A (de) *
GB1361672A (en) * 1971-03-30 1974-07-30 Horstmann Magnetics Ltd Magnetic rotor drives

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* Cited by examiner, † Cited by third party
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EP2891929A2 (de) 2015-07-08
EP2891929A3 (de) 2016-07-06

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