EP2703910B1 - Gepaarter Unruh-Spiralfeder-Resonator - Google Patents

Gepaarter Unruh-Spiralfeder-Resonator Download PDF

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Publication number
EP2703910B1
EP2703910B1 EP13179958.7A EP13179958A EP2703910B1 EP 2703910 B1 EP2703910 B1 EP 2703910B1 EP 13179958 A EP13179958 A EP 13179958A EP 2703910 B1 EP2703910 B1 EP 2703910B1
Authority
EP
European Patent Office
Prior art keywords
balance
axis
resonator
spiral
ppm
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
EP13179958.7A
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English (en)
French (fr)
Other versions
EP2703910A2 (de
EP2703910A3 (de
Inventor
Thierry Hessler
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.)
Swatch Group Research and Development SA
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Swatch Group Research and Development SA
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Publication date
Application filed by Swatch Group Research and Development SA filed Critical Swatch Group Research and Development SA
Priority to EP13179958.7A priority Critical patent/EP2703910B1/de
Publication of EP2703910A2 publication Critical patent/EP2703910A2/de
Publication of EP2703910A3 publication Critical patent/EP2703910A3/de
Application granted granted Critical
Publication of EP2703910B1 publication Critical patent/EP2703910B1/de
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Classifications

    • 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
    • G04B17/20—Compensation of mechanisms for stabilising frequency
    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C3/00—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means
    • G04C3/04—Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means wherein movement is regulated by a balance
    • 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
    • G04B17/04—Oscillators acting by spring tension
    • G04B17/06—Oscillators with hairsprings, e.g. balance
    • G04B17/063—Balance construction
    • 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
    • G04B17/04—Oscillators acting by spring tension
    • G04B17/06—Oscillators with hairsprings, e.g. balance
    • G04B17/066—Manufacture of the spiral spring
    • 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
    • G04B17/20—Compensation of mechanisms for stabilising frequency
    • G04B17/22—Compensation of mechanisms for stabilising frequency for the effect of variations of temperature

Definitions

  • the invention relates to a paired balance spring - spiral resonator and more specifically a spiral formed from monocrystalline quartz.
  • the documents EP 1 519 250 and EP 1 605 182 describe the manufacture of a monocrystalline quartz spiral.
  • the document US 2010/0034057 describes a pendulum whose expansion coefficient is less than +9 ppm. ° C -1 , preferably less than +6 ppm. ° C -1 .
  • a spiral quartz monocrystalline is not easy to match in practice.
  • the object of the present invention is to overcome all or part of the disadvantages mentioned above by proposing an improved pairing of a quartz spiral with its balance.
  • the invention relates to a resonator comprising a spiral formed in a monocrystalline quartz crystal of x, y, z crystallographic axes, the x axis being the electric axis and the y axis the axis. mechanical, and cooperating with a balance characterized in that the coefficient of expansion of the balance is between +6 ppm. ° C -1 and +9.9 ppm. ° C -1 for a cutting angle of the spiral relative to the z axis of said monocrystalline quartz crystal between -5 ° and + 5 ° so that the resonator is less sensitive to temperature variations.
  • the invention relates to a resonator 1 of the balance 3-spiral type 5.
  • the balance 3 and the spiral 5 are preferably mounted on the same axis 7.
  • the thermal dependence also includes a possible contribution of the maintenance system such as, for example, a Swiss lever escapement (not shown) cooperating with the ankle 9 of the plate 11 also mounted on the axis 7.
  • a Swiss lever escapement (not shown) cooperating with the ankle 9 of the plate 11 also mounted on the axis 7.
  • the invention more particularly relates to a resonator 1 in which the hairspring 5 is formed from a quartz monocrystal of crystallographic axes x, y, z, the x axis being the electric axis and the y axis. the mechanical axis.
  • the height h of the turns has substantially the same orientation as the crystallographic axis z. More precisely, the height h forms, with the axis z, an angle ⁇ which can be positive or negative. Changing this angle ⁇ allows to vary the characteristics of the spiral 5 without having to change the geometry.
  • a coefficient of expansion ⁇ b of the balance 3 should be substantially equal to +9 ppm. ° C -1 to obtain a substantially equal thermal coefficient at +0.06 sj -1 . ° C -1 which is well below the COSC conditions equal to ⁇ 0.6 sj -1 . ° C -1 .
  • the coefficient of expansion ⁇ b of the balance 3 is between +6 ppm. ° C -1 and +9.9 ppm. ° C -1 .
  • the balance 3 may notably comprise titanium and / or durimphy (symbol AFNOR: Z2NKD 18-09-05) and / or platinum.
  • the expansion coefficients ⁇ b of titanium and platinum are substantially equal to respectively +9 ppm. ° C -1 and durimphy substantially equal to +9.9 ppm. ° C -1 .
  • durimphy may be slightly sensitive to magnetic fields depending on its temperature of return.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
  • Crystals, And After-Treatments Of Crystals (AREA)
  • Micromachines (AREA)

Claims (5)

  1. Resonator (1), umfassend eine Spiralfeder (5), die aus einem monokristallinen Quarzkristall mit kristallographischen Achsen x, y, z gebildet ist, wobei die Achse x die elektrische Achse ist und die Achse y die mechanische Achse ist, wobei diese Spiralfeder mit einer Unruh (3) zusammenwirkt,
    dadurch gekennzeichnet, dass der Ausdehnungskoeffizient (αb) der Unruh (3) im Wesentlichen gleich 9 ppm.°C-1 ist und dass der Schnittwinkel (Θ) der Spiralfeder (5) in Bezug auf die z-Achse des einkristallinen Quarzsignals im Wesentlichen gleich +2° ist, damit der Resonator (1) gegenüber Temperaturschwankungen weniger empfindlich ist.
  2. Resonator (1) nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass mindestens ein Teil der Unruh (3) aus Titan hergestellt ist.
  3. Resonator (1) nach Anspruch 1, dadurch gekennzeichnet, dass mindestens ein Teil der Unruh (3) aus Platin hergestellt ist.
  4. Resonator (1), umfassend eine Spiralfeder (5), die aus einem einkristallinen Quarzkristall mit kristallographischen Achsen x, y, z gebildet ist, wobei die Achse x die elektrische Achse ist und die Achse y die mechanische Achse ist, wobei diese Spiralfeder mit einer Unruh (3) zusammenwirkt,
    dadurch gekennzeichnet, dass der Ausdehnungskoeffizient (αb) der Unruh (3) im Wesentlichen gleich +9,9 ppm.°C-1 ist und dass der Schnittwinkel (Θ) der Spiralfeder (5) in Bezug auf die Achse z des einkristallinen Quarzkristalls im Wesentlichen gleich +5° ist, damit der Resonator (1) gegenüber Temperaturschwankungen weniger empfindlich ist.
  5. Resonator (1) nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass mindestens ein Teil der Unruh (3) aus Durimphy hergestellt ist.
EP13179958.7A 2012-09-04 2013-08-09 Gepaarter Unruh-Spiralfeder-Resonator Active EP2703910B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP13179958.7A EP2703910B1 (de) 2012-09-04 2013-08-09 Gepaarter Unruh-Spiralfeder-Resonator

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP12182973.3A EP2703909A1 (de) 2012-09-04 2012-09-04 Gepaarter Spiralunruh-Schwinger
EP13179958.7A EP2703910B1 (de) 2012-09-04 2013-08-09 Gepaarter Unruh-Spiralfeder-Resonator

Publications (3)

Publication Number Publication Date
EP2703910A2 EP2703910A2 (de) 2014-03-05
EP2703910A3 EP2703910A3 (de) 2014-05-14
EP2703910B1 true EP2703910B1 (de) 2019-05-08

Family

ID=46758665

Family Applications (2)

Application Number Title Priority Date Filing Date
EP12182973.3A Withdrawn EP2703909A1 (de) 2012-09-04 2012-09-04 Gepaarter Spiralunruh-Schwinger
EP13179958.7A Active EP2703910B1 (de) 2012-09-04 2013-08-09 Gepaarter Unruh-Spiralfeder-Resonator

Family Applications Before (1)

Application Number Title Priority Date Filing Date
EP12182973.3A Withdrawn EP2703909A1 (de) 2012-09-04 2012-09-04 Gepaarter Spiralunruh-Schwinger

Country Status (5)

Country Link
US (1) US9030920B2 (de)
EP (2) EP2703909A1 (de)
JP (1) JP6328392B2 (de)
CN (1) CN103676600B (de)
RU (1) RU2643195C2 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3032810B1 (fr) * 2015-02-13 2017-02-24 Tronic's Microsystems Oscillateur mecanique et procede de realisation associe
EP3502786A1 (de) * 2017-12-22 2019-06-26 The Swatch Group Research and Development Ltd Unruh für uhr, und herstellungsverfahren einer solchen unruh
EP3796102B1 (de) 2017-12-22 2022-04-20 The Swatch Group Research and Development Ltd Verfahren zur herstellung einer unruh für uhren

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100034057A1 (en) * 2006-09-08 2010-02-11 Gideon Levingston Thermally compensating balance wheel

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1475005A (fr) * 1966-02-18 1967-03-31 Procédé de fabrication de fils métalliques et fils métalliques obtenus selon ce procédé
ES2171872T3 (es) * 1997-06-20 2002-09-16 Rolex Montres Espiral autocompensadora para oscilador mecanico de balancin-espiral para dispositivo de movimiento de relojeria y procedimiento de fabricacion de la espiral.
FR2842313B1 (fr) * 2002-07-12 2004-10-22 Gideon Levingston Oscilliateur mecanique (systeme balancier et ressort spiral) en materiaux permettant d'atteindre un niveau superieur de precision, applique a un mouvement d'horlogerie ou autre instrument de precision
DE60333191D1 (de) 2003-09-26 2010-08-12 Asulab Sa Spiralfeder-Unruh-Resonator mit Thermokompensation
EP1562087B1 (de) * 2004-02-05 2008-05-21 Montres Breguet S.A. Unruh für Uhrwerk
EP1596260A1 (de) * 2004-05-11 2005-11-16 Watch-U-License AG Herstellungsverfahren zu einem Zahnrad
EP1605182B8 (de) 2004-06-08 2010-07-14 CSEM Centre Suisse d'Electronique et de Microtechnique S.A. - Recherche et Développement Unruh-Spiralfeder-Oszillator mit Temperaturkompensation
DE602006007101D1 (de) * 2006-03-24 2009-07-16 Nivarox Sa Unruh für Uhrwerk
JP2010513886A (ja) * 2006-12-21 2010-04-30 コンプリタイム エスアー 時計用メカニカル振動子
CN101589347A (zh) * 2006-12-21 2009-11-25 康普利计时股份有限公司 用于钟表的机械振荡器
DE602007013123D1 (de) * 2007-11-28 2011-04-21 Manuf Et Fabrique De Montres Et De Chronometres Ulysse Nardin Le Locle S A Mechanischer oszillator mit einem optimierten thermoelastischen koeffizienten
EP2395661A1 (de) 2010-06-10 2011-12-14 The Swatch Group Research and Development Ltd. Temperaturkompensierter Resonator mit reduzierten Temperaturkoeffizienten erster und zweiter Ordnung

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100034057A1 (en) * 2006-09-08 2010-02-11 Gideon Levingston Thermally compensating balance wheel

Also Published As

Publication number Publication date
EP2703910A2 (de) 2014-03-05
EP2703910A3 (de) 2014-05-14
RU2013140777A (ru) 2015-03-10
CN103676600B (zh) 2016-09-07
EP2703909A1 (de) 2014-03-05
JP6328392B2 (ja) 2018-05-23
CN103676600A (zh) 2014-03-26
RU2643195C2 (ru) 2018-01-31
US9030920B2 (en) 2015-05-12
US20140064044A1 (en) 2014-03-06
JP2014052374A (ja) 2014-03-20

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