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EP0665478A1 - Electronic clock - Google Patents

Electronic clock Download PDF

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Publication number
EP0665478A1
EP0665478A1 EP94810658A EP94810658A EP0665478A1 EP 0665478 A1 EP0665478 A1 EP 0665478A1 EP 94810658 A EP94810658 A EP 94810658A EP 94810658 A EP94810658 A EP 94810658A EP 0665478 A1 EP0665478 A1 EP 0665478A1
Authority
EP
European Patent Office
Prior art keywords
stator
watch
rotors
generator
plate
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.)
Granted
Application number
EP94810658A
Other languages
German (de)
French (fr)
Other versions
EP0665478B1 (en
Inventor
Roberto Zafferri
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.)
Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0665478A1 publication Critical patent/EP0665478A1/en
Application granted granted Critical
Publication of EP0665478B1 publication Critical patent/EP0665478B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C10/00—Arrangements of electric power supplies in time pieces

Definitions

  • the present invention relates to an electronic watch according to the preamble of claim 1.
  • Watches of this kind are known for example from CH-B-671 669 or from WO 92/04 662.
  • the generators of these known watches comprise a single rotor and stator, which requires a considerable multiplication of the rotation of the oscillating mass to obtain a suitable speed, respectively a yield and a suitable power of the generator.
  • the generator requires enough space in the movement of the watch, and in any case, it is a special movement, comprising the oscillating weight, the gear train and the generator itself.
  • the present invention provides a watch according to claim 1.
  • the fact of providing several magnetized rotors makes it possible to obtain sufficient efficiency and power by means of a relatively small multiplication, with a single toothed wheel engaging the rotor gears. A multiplication in the order of 40 to 45 may suffice.
  • the magnetized rotors act on a common stator, for example an annular stator at the periphery of the movement. It is thus possible to produce a generator outside of a usual movement, and the generator comprising the oscillating mass, the rotors and the stator can be produced in the form of a module capable of being assembled with a watch movement. .
  • the present invention also relates to such a generator according to claim 6.
  • This generator can be characterized by a plate, which has a housing for the watch movement. It is thus possible to manufacture generators whose said housing is sized to receive watch movements of different calibers.
  • the generator part or generator module comprises a plate 1 on which is mounted using a ball bearing 2, an oscillating mass 3. This oscillating mass is integral with a toothed wheel 4, which is engaged with the pinions 5 of four magnetized rotors 6. These are bipolar rotors with diametrical magnetization.
  • the rotors with the pinions 5 are mounted on pivots in the plate 1 and a bridge 8.
  • Each rotor 5 is located between two polar expansions 7 of a stator section 9, mounted on the plate.
  • Each section 9 of the stator is made up of a coil 10. In fact, it is the polar expansions which are fixed on projecting parts of the plate 1, while the sections 9 and coils 10 are located outside the plate in cutouts 11 of these.
  • the plate 1 has a housing 12 capable of receiving a watch movement 13 of an appropriate caliber. The dimensions of the housing 12 can be chosen to receive an electronic watch movement of an existing caliber.
  • the four rotors 6 are driven in synchronism by the toothed wheel 4 and the pinions 5.
  • the rotors 6 are arranged between the stator sections 7, 9 so that the magnetic flux is added in the annular stator formed by the four stator sections.
  • the coils 10 can be connected in series or in parallel, depending on the degree charging capacity. The alternating current induced in the coils 10 can be rectified to charge the accumulator of the watch.
  • the invention allows a simple and thin construction, since the polar expansions 7 are directly mounted on the plate and the sections 9 and coils 10 are mounted in cutouts of the plate.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromechanical Clocks (AREA)
  • Permanent Magnet Type Synchronous Machine (AREA)

Abstract

The watch has a mass (3) which oscillates in ball-bearings (2) on a plate (1) and is fixed to a toothed wheel (4) in mesh with four pinions (5) on diametrically magnetised rotors (6) at 90 deg. spacing around the rim of the plate. Each rotor (6) lies between two pole pieces of a section (9) of an annular stator wound with a coil (10). The movement (13) of an existing watch can be fitted into a suitably sized recess (13) in the underside of the plate.

Description

La présente invention concerne une montre électronique selon le préambule de la revendication 1. Des montres de ce genres sont connues par exemple de CH-B-671 669 ou de WO 92/04 662. Les générateurs de ces montres connues comportent un seul rotor et stator, ce qui nécessite une multiplication considérable de la rotation de la masse oscillante pour obtenir une vitesse convenable, respectivement un rendement et une puissance convenables du générateur. En plus, le générateur nécessite assez de place dans le mouvement de la montre, et de toute façon, il s'agit d'un mouvement spécial, comprenant la masse oscillante, le train d'engrenages et le générateur proprement dit.The present invention relates to an electronic watch according to the preamble of claim 1. Watches of this kind are known for example from CH-B-671 669 or from WO 92/04 662. The generators of these known watches comprise a single rotor and stator, which requires a considerable multiplication of the rotation of the oscillating mass to obtain a suitable speed, respectively a yield and a suitable power of the generator. In addition, the generator requires enough space in the movement of the watch, and in any case, it is a special movement, comprising the oscillating weight, the gear train and the generator itself.

Pour éviter les désavantages susmentionnés, la présente invention propose une montre selon la revendication 1. Le fait de prévoir plusieurs rotors aimantés permet d'obtenir un rendement et une puissance suffisante à l'aide d'une multiplication relativement faible, avec une seule roue dentée en prise avec les pignons des rotors. Une multiplication dans l'ordre de 40 à 45 peut suffir. De préférence, les rotors aimantés agissent sur un stator commun, par exemple un stator annulaire à la périphérie du mouvement. Il est ainsi possible de réaliser un générateur à l'extérieur d'un mouvement habituel, et le générateur comprenant la masse oscillante, les rotors et le stator peuvent être réalisés sous forme d'un module susceptible d'être assemblé avec un mouvement de montre.To avoid the aforementioned disadvantages, the present invention provides a watch according to claim 1. The fact of providing several magnetized rotors makes it possible to obtain sufficient efficiency and power by means of a relatively small multiplication, with a single toothed wheel engaging the rotor gears. A multiplication in the order of 40 to 45 may suffice. Preferably, the magnetized rotors act on a common stator, for example an annular stator at the periphery of the movement. It is thus possible to produce a generator outside of a usual movement, and the generator comprising the oscillating mass, the rotors and the stator can be produced in the form of a module capable of being assembled with a watch movement. .

Par conséquent, la présente invention concerne également un tel générateur selon la revendication 6. Ce générateur peut être caractérisé par une platine, qui comporte un logement pour le mouvement de montre. Il est ainsi possible de fabriquer des générateurs dont ledit logement est dimensionné de façon à recevoir des mouvements de montre de calibres différents.Consequently, the present invention also relates to such a generator according to claim 6. This generator can be characterized by a plate, which has a housing for the watch movement. It is thus possible to manufacture generators whose said housing is sized to receive watch movements of different calibers.

L'invention sera expliquée plus en détail à l'aide d'un exemple d'exécution représenté dans le dessin.

  • La fig. 1 est une vue de dessus, sans masse oscillante et
  • la fig. 2 est une coupe suivant la ligne II-II.
The invention will be explained in more detail using an example embodiment shown in the drawing.
  • Fig. 1 is a top view, without oscillating weight and
  • fig. 2 is a section along line II-II.

La partie générateur ou module générateur comporte une platine 1 sur laquelle est montée à l'aide d un roulement à billes 2, une masse oscillante 3. Cette masse oscillante est solidaire avec une roue dentée 4, qui est en prise avec les pignons 5 de quatre rotors aimantés 6. Il s'agit de rotors bipolaires à aimantation diamétrale. Les rotors avec les pignons 5 sont montés sur pivots dans la platine 1 et un pont 8. Chaque rotor 5 se trouve entre deux expansions polaires 7 d'une section de stator 9, montée sur la platine. Chaque section 9 du stator est pouvue d'une bobine 10. En effet, se sont les expansions polaires qui sont fixées sur des parties saillantes de la platine 1, tandis que les sections 9 et bobines 10 se trouvent à l'extérieur de la platine dans des découpures 11 de celles-ci. La platine 1 présente un logement 12 susceptible de recevoir un mouvement de montre 13 d'un calibre approprié. Les dimensions du logement 12 peuvent être choisies pour recevoir un mouvement de montre électronique d'un calibre existant.The generator part or generator module comprises a plate 1 on which is mounted using a ball bearing 2, an oscillating mass 3. This oscillating mass is integral with a toothed wheel 4, which is engaged with the pinions 5 of four magnetized rotors 6. These are bipolar rotors with diametrical magnetization. The rotors with the pinions 5 are mounted on pivots in the plate 1 and a bridge 8. Each rotor 5 is located between two polar expansions 7 of a stator section 9, mounted on the plate. Each section 9 of the stator is made up of a coil 10. In fact, it is the polar expansions which are fixed on projecting parts of the plate 1, while the sections 9 and coils 10 are located outside the plate in cutouts 11 of these. The plate 1 has a housing 12 capable of receiving a watch movement 13 of an appropriate caliber. The dimensions of the housing 12 can be chosen to receive an electronic watch movement of an existing caliber.

Lors de chaque rotation de la masse oscillante 3, les quatre rotors 6 sont entraînés en synchronisme par la roue dentée 4 et les pignons 5. Les rotors 6 sont disposés entre les sections de stator 7, 9 de façon que le flux magnétique s'additionne dans le stator annulaire constitué par les quatre sections de stator. On obtient ainsi une variation de flux intense et par conséquent, un rendement et une puissance élevés du générateur malgré la multiplication relativement faible entre le mouvement de la masse oscillante et la rotation des rotors 6. Les bobines 10 peuvent être branchées en série ou en parallèle, en fonction du degré de charge de l'accumulateur. Le courant alternatif induit dans les bobines 10 peut être redressé pour charger l'accumulateur de la montre.During each rotation of the oscillating mass 3, the four rotors 6 are driven in synchronism by the toothed wheel 4 and the pinions 5. The rotors 6 are arranged between the stator sections 7, 9 so that the magnetic flux is added in the annular stator formed by the four stator sections. We thus obtain a variation intense flow and therefore a high efficiency and power of the generator despite the relatively small multiplication between the movement of the oscillating mass and the rotation of the rotors 6. The coils 10 can be connected in series or in parallel, depending on the degree charging capacity. The alternating current induced in the coils 10 can be rectified to charge the accumulator of the watch.

Au lieu de quatre rotors 6, on peut en prévoir plus ou moins, mais au moins deux. Quel que soit le nombre de rotors et de sections du stator, l'invention permet une construction simple et de faible épaisseur, étant donné que les expansions polaires 7 sont directement montées sur la platine et que les sections 9 et bobines 10 sont montées dans des découpures de la platine.Instead of four rotors 6, one can provide more or less, but at least two. Whatever the number of rotors and sections of the stator, the invention allows a simple and thin construction, since the polar expansions 7 are directly mounted on the plate and the sections 9 and coils 10 are mounted in cutouts of the plate.

Claims (8)

Montre électronique comprenant une masse oscillante (3) accouplée au rotor (6) d'un générateur (6, 9, 10) par un train d'engrenages (4, 5), caractérisée en ce que la masse oscillante (3) est solidaire avec une roue dentée (4) en prise avec plusieurs pignons (5), chaque pignon étant monté sur l'axe d'un rotor (6) aimanté agissant sur un stator (9, 10).Electronic watch comprising an oscillating mass (3) coupled to the rotor (6) of a generator (6, 9, 10) by a gear train (4, 5), characterized in that the oscillating mass (3) is integral with a toothed wheel (4) engaged with several pinions (5), each pinion being mounted on the axis of a magnetized rotor (6) acting on a stator (9, 10). Montre selon la revendication 1, caractérisée en ce que les rotors (6) aimantés agissent sur un stator (9, 10) commun.Watch according to claim 1, characterized in that the magnetized rotors (6) act on a common stator (9, 10). Montre selon la revendication 2, caractérisée en ce que les rotors (6) sont disposés en serie entre des sections (9, 10) du stator.Watch according to claim 2, characterized in that the rotors (6) are arranged in series between sections (9, 10) of the stator. Montre selon une des revendications 1 - 3, caractérisée en ce que le stator comporte plusieurs bobines (10) branchées en série ou en parallèle.Watch according to one of claims 1 - 3, characterized in that the stator comprises several coils (10) connected in series or in parallel. Montre selon une des revendications 1 - 4, caractérisée en ce que le stator comprend des sections (7, 9) en une pièce portant une bobine (10) entre des expansions polaires (7).Watch according to one of claims 1 - 4, characterized in that the stator comprises sections (7, 9) in one piece carrying a coil (10) between polar expansions (7). Générateur dans une montre selon une des revendications 1 - 5, caractérisée en ce qu'il constitue un module susceptible d'être assemblé avec un mouvement de montre (13).Generator in a watch according to one of claims 1 - 5, characterized in that it constitutes a module capable of being assembled with a watch movement (13). Générateur selon la revendication 6, caractérisée par une platine (1) portant la masse oscillante (3), les rotors (6) et le stator (9, 10), et comportant un logement (12) pour le mouvement (13) de montre.Generator according to claim 6, characterized by a plate (1) carrying the oscillating mass (3), the rotors (6) and the stator (9, 10), and comprising a housing (12) for the watch movement (13) . Générateur selon la revendication 6 ou 7, caractérisée par un stator annulaire périphérique.Generator according to claim 6 or 7, characterized by a peripheral annular stator.
EP94810658A 1994-01-26 1994-11-21 Electronic clock Expired - Lifetime EP0665478B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH00237/94A CH687287B5 (en) 1994-01-26 1994-01-26 Device for production of energy required to walk an electronic watch and watch comprising such a device.
CH237/94 1994-01-26

Publications (2)

Publication Number Publication Date
EP0665478A1 true EP0665478A1 (en) 1995-08-02
EP0665478B1 EP0665478B1 (en) 1997-08-20

Family

ID=4182415

Family Applications (1)

Application Number Title Priority Date Filing Date
EP94810658A Expired - Lifetime EP0665478B1 (en) 1994-01-26 1994-11-21 Electronic clock

Country Status (7)

Country Link
US (1) US5614779A (en)
EP (1) EP0665478B1 (en)
JP (1) JPH07218657A (en)
CN (1) CN1051382C (en)
CH (1) CH687287B5 (en)
DE (1) DE69405085T2 (en)
HK (1) HK1001103A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0751445A1 (en) 1995-06-27 1997-01-02 Asulab S.A. Electric power generator for timepiece
US6041022A (en) * 1996-12-18 2000-03-21 Patek Philippe S.A. Mechanical-electric energy converter and watch part comprising this energy converter

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0851322B1 (en) * 1996-12-23 2000-05-17 Ronda Ag Micro-generator, module and time piece, containing such a micro-generator
TW452776B (en) * 1999-10-14 2001-09-01 Leadtek Research Inc Power generating apparatus for electronic recording tape
CH705910B1 (en) * 2011-12-16 2024-07-15 Ali&Co Geneve Sa Mysterious reversible watch.
EP4303667A1 (en) * 2022-07-06 2024-01-10 The Swatch Group Research and Development Ltd Device for generating electrical energy for a timepiece

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1058942B (en) * 1957-05-24 1959-06-04 Kieninger & Obergfell Portable electric clock
DE1811389U (en) * 1959-09-15 1960-05-12 Junghans Geb Ag PENDULUM GENERATOR FOR CHARGING POWER SOURCES IN SMALL ELECTRIC CLOCKS.
EP0483065A1 (en) * 1990-10-22 1992-04-29 Charles Gigandet S.A. Wristwatch

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3168665A (en) * 1962-01-02 1965-02-02 Molon Motor & Coil Corp Multiple rotor induction motor unit
US3518506A (en) * 1967-12-06 1970-06-30 Ibm Semiconductor device with contact metallurgy thereon,and method for making same
US4167848A (en) * 1975-05-14 1979-09-18 Seiko Koki Kabushiki Kaisha Driving device for an electric timepiece
NL8402113A (en) * 1984-07-03 1986-02-03 Kinetron Bv SYSTEM FOR ELECTRICAL SUPPLY OF PORTABLE MINIATURE ENERGY CONSUMERS.
NL9001976A (en) * 1990-09-07 1992-04-01 Kinetron Bv GENERATOR.
US5534737A (en) * 1994-12-21 1996-07-09 Nishimura; Masayuki Composite motor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1058942B (en) * 1957-05-24 1959-06-04 Kieninger & Obergfell Portable electric clock
DE1811389U (en) * 1959-09-15 1960-05-12 Junghans Geb Ag PENDULUM GENERATOR FOR CHARGING POWER SOURCES IN SMALL ELECTRIC CLOCKS.
EP0483065A1 (en) * 1990-10-22 1992-04-29 Charles Gigandet S.A. Wristwatch

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0751445A1 (en) 1995-06-27 1997-01-02 Asulab S.A. Electric power generator for timepiece
US6041022A (en) * 1996-12-18 2000-03-21 Patek Philippe S.A. Mechanical-electric energy converter and watch part comprising this energy converter

Also Published As

Publication number Publication date
EP0665478B1 (en) 1997-08-20
US5614779A (en) 1997-03-25
CN1111767A (en) 1995-11-15
DE69405085T2 (en) 1998-03-05
CH687287GA3 (en) 1996-11-15
HK1001103A1 (en) 1998-05-22
JPH07218657A (en) 1995-08-18
CH687287B5 (en) 1997-05-15
DE69405085D1 (en) 1997-09-25
CN1051382C (en) 2000-04-12

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