EP0483065A1 - Montre-bracelet - Google Patents

Montre-bracelet Download PDF

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Publication number
EP0483065A1
EP0483065A1 EP91810805A EP91810805A EP0483065A1 EP 0483065 A1 EP0483065 A1 EP 0483065A1 EP 91810805 A EP91810805 A EP 91810805A EP 91810805 A EP91810805 A EP 91810805A EP 0483065 A1 EP0483065 A1 EP 0483065A1
Authority
EP
European Patent Office
Prior art keywords
rotor
coils
capacitor
annular space
permanent magnets
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
EP91810805A
Other languages
German (de)
English (en)
Other versions
EP0483065B1 (fr
Inventor
Walter Affolter
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.)
Charles Gigandet Sa
Original Assignee
Charles Gigandet 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
Application filed by Charles Gigandet Sa filed Critical Charles Gigandet Sa
Publication of EP0483065A1 publication Critical patent/EP0483065A1/fr
Application granted granted Critical
Publication of EP0483065B1 publication Critical patent/EP0483065B1/fr
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 invention relates to a wristwatch according to the preamble of claim 1.
  • this rotor In previously known wristwatches of this type, which, like self-winding watches, have a rotor that is pivoted back and forth by the movement of the hand of the person wearing the watch, this rotor consists of a metal segment that forms the flywheel and its circumference with a toothing is provided. During the movement of the rotor, this toothing comes into engagement with a pinion which carries a permanent magnet which is moved back and forth in front of a coil in order to generate current surges for charging the capacitor by the induction effect.
  • the present invention has for its object to improve a wristwatch of this type in such a way that a greater relative speed between the permanent magnet and the coil and thus stronger induced currents are achieved during the movement of the rotor and that such a watch is also readily available with prefabricated movements of different calibers and Types can be provided.
  • This configuration ensures that the rotor can have the maximum possible diameter in a housing of a given size and, consequently, the part of the induction system, coil or permanent magnet attached to its circumference, can be moved at a correspondingly high speed, a gear transmission advantageously being omitted.
  • the entire central area of the watch is available for accommodating the watch mechanism, since the induction system is only arranged in the peripheral area of the housing.
  • the arrangement is preferably such that in the housing there is a base plate with a pot-shaped depression provided in the central region thereof, which is open on one side and in which the clockwork is seated, and with a plate provided in the peripheral region of this base plate after the other Side open circular recess is mounted, which forms the annular space mentioned.
  • the base plate advantageously serves both as a magnetic yoke in the induction system and as a movement holder.
  • the central cup-shaped depression of the base plate allows clockworks of any caliber and of any type to be inserted into the housing in a simple manner and, if necessary, exchanged; if a movement with a caliber smaller than that of the size of the cup-shaped depression is used, an additional, adapted movement retaining ring can be provided, for example.
  • four coils are fastened at the same angular distance from one another on the circumference of the disk-shaped rotor, which has an unbalance on its half, expediently in the form of a greater material thickness, which co-operate with four magnet pairs likewise fastened at the same angular distance from one another in the annular space , wherein preferably a coil is provided with a soft iron core.
  • the wristwatch has a housing consisting of a central part 1 with band connections 1a and a bottom 2, a base plate 3 inserted into the central part 1, a clockwork 4, a dial 5 resting on a support 5a and a watch glass 6.
  • the base plate 3 made of soft iron is stepped and has in the central area 3a an upwardly open cup-shaped depression for receiving the clockwork 4 and on its circumferential area 3b an annular depression open to the other side, i.e. towards the bottom 2, which one Annulus 9 for receiving the induction system forms.
  • a downwardly open recess for receiving a capacitor 7 is provided.
  • a disk-shaped rotor 8 which can be freely rotated about a central pin 23 and which is practical extends over the entire inner diameter of the housing.
  • This rotor 8 forms an unbalance 8a or a flywheel mass in that, in the example under consideration, the material thickness of this rotor half is more than twice as large as the other half 8b of the rotor.
  • the peripheral zone 8c of the rotor 8 is angled inwards so that it projects into the annular space 9 and, in the example under consideration, carries four coils 10 at the same angular distance of 90 ° each.
  • the coil axes are parallel to the housing axis.
  • Four permanent magnet pairs are fastened in the annular space 9, likewise at the same angular distance of 90 ° each, of which one permanent magnet 11 of each pair on the upper wall of the peripheral region 3b of the base plate 3 and the other magnet 11a of each pair on an annular plate 12 made of soft iron is attached, which almost covers the annular space 9 formed by the annular depression at the bottom, ie on the side facing the floor.
  • This ring plate 12 is attached to the outer edge of the base plate 3.
  • the two permanent magnets 11, 11a of each pair are at a distance from one another and are oriented with their magnetic axes parallel to the axis of the housing, opposite magnetic poles lying opposite each other and the poles alternating from permanent magnets in the circumferential direction.
  • the distance between the two permanent magnets 11, 11a of each pair is dimensioned such that the peripheral zone 8c of the rotor 8 with the coils 10 attached to it can freely swing through the space between the respective permanent magnets.
  • the capacitor 7 is accessible through a corresponding recess in the base plate 3 and, like a battery, can be inserted or removed in a simple manner when the base 2 and the rotor 8 have been removed.
  • FIG. 6 schematically shows the developed arrangement of the four permanent magnet pairs 11, 11a with the position of their poles and the four coils 10 movable between the permanent magnets of each pair, voltages being induced in the opposite direction from coil to coil when the magnets pass. as indicated by arrows. All four coils 10 are connected in parallel on the rotor 8, which consists, for example, of brass, by means of corresponding lines, as shown in FIG.
  • a soft iron core 10a is preferably arranged in the interior of one of the coils 10, as a result of which preferred rest positions of the rotor 8 are defined, since this coil tends to come to rest precisely between these permanent magnets due to the magnetic attraction of its core by the two permanent magnets of a magnet pair.
  • the rotor 8 receives a small movement impulse, it leaves this rest position and is preferably moved into the following rest position, in which the coil with the core comes to rest between the two permanent magnets of another pair of magnets. This favors the creation of relatively rapid rotor movements. A too strong magnetic attraction force on the rotor which is in a rest position is avoided in that only one of the coils is provided with a core.
  • the printed circuit board 13 carries two contact springs 14 and 15, a rectifier 18, two conductor tracks 19 and 20, which connect the contact springs 14 and 15 to the AC inputs of the rectifier 18, and two further wide conductor tracks 21 and 22, which are connected to the direct current outputs of the rectifier 18 and whose ends are connected to the electrode connections of the capacitor 7 as correspondingly bent contact tabs.
  • the flexible conductor tracks 21 and 22 belong to a printed circuit on which the rectifier and the contact springs are soldered.
  • the conductor track 22 is placed around the capacitor 7 and touches the negative contact of the housing and the negative pole of the capacitor at the bottom.
  • the small tongue-shaped conductor track 21 is in contact with the positive contact of the clockwork and the positive pole of the capacitor.
  • FIG. 4 shows the contact tabs of the conductor tracks 21 and 22 in the straight state before they are bent over.
  • the two contact springs 14 and 15 rest as sliding contacts on two annular, concentric contact tracks 16 and 17, which are arranged on the underside of the rotor 18 and are connected to the two lines connecting the coils 10 in parallel, as schematically shown in FIG. 7 indicated.
  • the coils 10 crossing the magnetic fields of the permanent magnet pairs 11, 11a generate currents of different directions, which are rectified in the rectifier 18 and charge the capacitor 7 is in turn connected to the clockwork 4 as a power source.
  • the clockwork 4 can in the usual way have an electronic time base with a quartz-controlled oscillator with a frequency divider that controls a stepper motor as a drive device for the pointer mechanism. Such commercially available electronic movements have a current consumption of approximately 2 A.
  • An electrolytic capacitor of 0.2 F is preferably used as the capacitor 7. This offers a power reserve of around 36 hours.
  • Samarium-cobalt magnets can preferably be used as permanent magnets, the magnets 11 in the example considered having a diameter of 3.2 mm and an axial height of 1.2 mm and the magnets 11a having a diameter of 3.0 mm and an axial height of 0.6 mm, while the coils can have a diameter of 3.2 mm and a height of 1.5 mm.
  • the generally required current stabilization circuit can also be accommodated on the printed circuit board 13.
  • the diameter of the clockwork is approximately 24 mm
  • the outer diameter of the base plate 3 is approximately 32 mm
  • the outer diameter of the housing, that is the total diameter of the clock is approximately 33 to 34 mm.
  • the base plate 3 serves not only as a magnetic yoke, but also as a movement holder, the clockwork rim resting on an annular shoulder of the central pot-shaped depression. However, it is also possible to use movements of a different caliber with one and the same base plate if an additional adapted movement retaining ring is provided.
  • the invention is not limited to the exemplary embodiment described, but rather allows for numerous variants, in particular with regard to the shape of the base plate and the rotor, the number and distribution of the coils and the permanent magnets.
  • the coils can also be arranged permanently in the annular space 9 and the permanent magnets on the peripheral zone 8c of the rotor 8. It is essential that in the case of several coils and permanent magnets, the moving parts always pass the fixed parts of the induction system simultaneously, that is to say the angular spacings of the fixed parts correspond to those of the moving parts in order to obtain the maximum possible charging of the capacitor.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Permanent Magnet Type Synchronous Machine (AREA)
  • Electric Clocks (AREA)
EP91810805A 1990-10-22 1991-10-18 Montre-bracelet Expired - Lifetime EP0483065B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH3356/90 1990-10-22
CH335690 1990-10-22

Publications (2)

Publication Number Publication Date
EP0483065A1 true EP0483065A1 (fr) 1992-04-29
EP0483065B1 EP0483065B1 (fr) 1995-12-20

Family

ID=4254211

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91810805A Expired - Lifetime EP0483065B1 (fr) 1990-10-22 1991-10-18 Montre-bracelet

Country Status (3)

Country Link
US (1) US5278806A (fr)
EP (1) EP0483065B1 (fr)
DE (1) DE59107118D1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9216083U1 (de) * 1992-11-26 1993-12-23 Uhrenfabrik Senden GmbH & Co. KG, 89250 Senden Elektronische Ladeschaltung für einen Speicher mit geringer Eigenstromaufnahme
EP0665478A1 (fr) * 1994-01-26 1995-08-02 Roberto Zafferri Montre électronique
EP0683442A1 (fr) * 1994-05-20 1995-11-22 Mondaine Watch Ltd Petite montre électronique
EP0805380A1 (fr) * 1995-11-21 1997-11-05 Seiko Epson Corporation Article d'horlogerie electronique
EP0851322A1 (fr) * 1996-12-23 1998-07-01 Ronda Ag Micro-générateur, module et pièce d'horlogerie, contenant un tel micro-générateur
CN103797426A (zh) * 2011-06-09 2014-05-14 卡迪亚创造工作室股份公司 防止由重力作用于摆轮游丝调节装置上而导致速率变化的机构以及结合该改进的钟表
CH713599A1 (de) * 2017-03-21 2018-09-28 Sequent Ltd Energieerzeugungseinheit mit Schwungmasse.

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH686474B5 (fr) * 1994-05-04 1996-10-15 Ebauchesfabrik Eta Ag Dispositif de couplage entre une source d'énergie mécanique et une génératrice électrique dans une pièce d'horlogerie.
JP3174245B2 (ja) * 1994-08-03 2001-06-11 セイコーインスツルメンツ株式会社 電子制御時計
US5540729A (en) * 1994-12-19 1996-07-30 Medtronic, Inc. Movement powered medical pulse generator having a full-wave rectifier with dynamic bias
US5684761A (en) * 1996-02-02 1997-11-04 Industrial Technology Research Institute Swinging type power generator
US6617963B1 (en) 1999-02-26 2003-09-09 Sri International Event-recording devices with identification codes
US6806808B1 (en) 1999-02-26 2004-10-19 Sri International Wireless event-recording device with identification codes
US7034660B2 (en) * 1999-02-26 2006-04-25 Sri International Sensor devices for structural health monitoring
GB2354646A (en) * 1999-09-22 2001-03-28 John Fagbola Battery housed kinetic generator
CH713523B1 (fr) * 2001-11-26 2018-09-14 Ebauchesfabrik Eta Ag Objet électronique portatif tel qu'une pièce d'horlogerie susceptible d'être porté au poignet.
EP1521141B1 (fr) * 2003-10-01 2007-05-30 Asulab S.A. Pièce d'horlogerie ayant un mouvement mécanique associé à un régulateur électronique
US8405235B2 (en) * 2009-05-13 2013-03-26 Ienergy Harvesting, Inc. Energy harvesting device
IT1403105B1 (it) * 2010-12-15 2013-10-04 Corvino Struttura di orologio da polso.
US9836027B2 (en) * 2013-04-10 2017-12-05 The Swatch Group Research And Development Ltd Winding device for self-winding automatic watch
EP3163381B1 (fr) * 2015-10-26 2019-06-26 The Swatch Group Research and Development Ltd. Remontage automatique d'une montre
US20170364038A1 (en) * 2016-06-15 2017-12-21 Yehuda Fulda Kinetic Powered Smartwatch
EP3299908B1 (fr) * 2016-09-27 2019-08-14 The Swatch Group Research and Development Ltd. Montre à remontage automatique

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1058942B (de) * 1957-05-24 1959-06-04 Kieninger & Obergfell Tragbare elektrische Uhr
DE1811389A1 (de) * 1967-12-06 1969-07-03 Ibm Flaechenhaftes Halbleiterelement
US4008566A (en) * 1975-11-10 1977-02-22 Mcclintock Richard D Electronic watch generator
DE2751797A1 (de) * 1977-11-19 1979-05-23 Quarz Zeit Ag Elektrische uhr, insbesondere armbanduhr

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3803433A (en) * 1972-02-17 1974-04-09 Gen Time Corp Permanent magnet rotor synchronous motor
NL8402113A (nl) * 1984-07-03 1986-02-03 Kinetron Bv Stelsel voor elektrische voeding van draagbare miniatuur-energieverbruikers.
CH671669B5 (fr) * 1988-03-21 1990-03-30 Phare Jean D Eve Sa Le

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1058942B (de) * 1957-05-24 1959-06-04 Kieninger & Obergfell Tragbare elektrische Uhr
DE1811389A1 (de) * 1967-12-06 1969-07-03 Ibm Flaechenhaftes Halbleiterelement
US4008566A (en) * 1975-11-10 1977-02-22 Mcclintock Richard D Electronic watch generator
DE2751797A1 (de) * 1977-11-19 1979-05-23 Quarz Zeit Ag Elektrische uhr, insbesondere armbanduhr

Cited By (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE9216083U1 (de) * 1992-11-26 1993-12-23 Uhrenfabrik Senden GmbH & Co. KG, 89250 Senden Elektronische Ladeschaltung für einen Speicher mit geringer Eigenstromaufnahme
EP0665478A1 (fr) * 1994-01-26 1995-08-02 Roberto Zafferri Montre électronique
CH687287GA3 (fr) * 1994-01-26 1996-11-15 Roberto Zafferri Dispositif de production de l'énergie nécessaire à la marche d'une montre électronique et montre comprenant un tel dispositif.
US5614779A (en) * 1994-01-26 1997-03-25 Zafferri; Roberto Electronic watch
EP0683442A1 (fr) * 1994-05-20 1995-11-22 Mondaine Watch Ltd Petite montre électronique
EP0908797A3 (fr) * 1995-11-21 2000-12-13 Seiko Epson Corporation Montre électronique
EP0805380A1 (fr) * 1995-11-21 1997-11-05 Seiko Epson Corporation Article d'horlogerie electronique
EP0805380A4 (fr) * 1995-11-21 1998-09-23 Seiko Epson Corp Article d'horlogerie electronique
EP0908797A2 (fr) * 1995-11-21 1999-04-14 Seiko Epson Corporation Montre électronique
EP0851322A1 (fr) * 1996-12-23 1998-07-01 Ronda Ag Micro-générateur, module et pièce d'horlogerie, contenant un tel micro-générateur
US6124649A (en) * 1996-12-23 2000-09-26 Ronda Ag Micro-generator module and clockwork movement containing such a micro-generator
CN103797426A (zh) * 2011-06-09 2014-05-14 卡迪亚创造工作室股份公司 防止由重力作用于摆轮游丝调节装置上而导致速率变化的机构以及结合该改进的钟表
CN103797426B (zh) * 2011-06-09 2016-10-05 卡地亚国际有限公司 防止由重力作用于摆轮游丝调节装置上而导致速率变化的机构以及结合该改进的钟表
CH713599A1 (de) * 2017-03-21 2018-09-28 Sequent Ltd Energieerzeugungseinheit mit Schwungmasse.

Also Published As

Publication number Publication date
US5278806A (en) 1994-01-11
EP0483065B1 (fr) 1995-12-20
DE59107118D1 (de) 1996-02-01

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