EP0683442A1 - Petite montre électronique - Google Patents

Petite montre électronique Download PDF

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Publication number
EP0683442A1
EP0683442A1 EP95810316A EP95810316A EP0683442A1 EP 0683442 A1 EP0683442 A1 EP 0683442A1 EP 95810316 A EP95810316 A EP 95810316A EP 95810316 A EP95810316 A EP 95810316A EP 0683442 A1 EP0683442 A1 EP 0683442A1
Authority
EP
European Patent Office
Prior art keywords
housing
module
generator
clockwork
flywheel
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
EP95810316A
Other languages
German (de)
English (en)
Other versions
EP0683442B1 (fr
Inventor
Erwin Bernheim
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.)
MONDAINE WATCH Ltd
Original Assignee
MONDAINE WATCH Ltd
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 MONDAINE WATCH Ltd filed Critical MONDAINE WATCH Ltd
Publication of EP0683442A1 publication Critical patent/EP0683442A1/fr
Application granted granted Critical
Publication of EP0683442B1 publication Critical patent/EP0683442B1/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 small electronic watch with a clock mechanism arranged in a housing, with a rechargeable current source feeding the clock mechanism and a generator charging this current source, the rotor of which can be driven by a flywheel.
  • Such a small watch in the form of a wristwatch is known from DE-A-2751 797 and has a small accumulator and a generator as a power source, the movable part of which is coupled as a flywheel with an inertia rotor which can be actuated by the movement of the watch.
  • This flywheel is mounted in a central point of a circuit board, which also carries the power source, and is provided with a permanent magnet glued to its edge area. This permanent magnet interacts with fixedly installed coils that lie on the movement circle of the permanent magnet.
  • the current pulses induced in this way are rectified by a rectifier circuit and used to charge the small accumulator.
  • PCT publication WO 92/04662 also discloses a flywheel-driven generator for installation in an electronic watch, the generator and flywheel being accommodated in a special, essentially closed housing with a rectangular cross-section. This publication does not say anything about the installation of this generator housing and the clockwork in a clock housing.
  • the present invention has for its object to provide a small electronic watch of the type described above so that the component consisting of generator and flywheel can be quickly and easily assembled in the watch case without interfering with the movement, without the electronic pressure sensitive Clockwork is mechanically stressed when assembling the clock by the mentioned component;
  • the component consisting of a generator and a flywheel should be usable for housings and clockworks of different types without any design changes, provided that these clock housings are standard housings with the same opening diameter.
  • the prefabricated module is simply inserted into the open housing, similar to the prefabricated watch movements available on the market, and is fixed by clamping when the housing is closed.
  • the necessary electrical contact between the generator terminals and the poles of the power source takes place automatically by the corresponding metallic parts being in contact with one another Be brought into contact without having to install special electrical line elements between the generator and the power source.
  • the module is provided on its periphery with an annular flange which is inserted into a corresponding recess of the middle part of the housing or, if the watch has a movement holder ring, into a corresponding recess of the movement holder ring and is clamped through the floor when the housing is closed.
  • the bottom of the watch case forms part of the module itself and carries the central pin for the bearing of the flywheel and the generator rotor.
  • the module 1 has a mounting plate 2 which carries the generator 3 on the top and the flywheel 4 on the bottom.
  • the rotor 5 of the generator and the flywheel 4 are attached to a central pivot 6, which is rotatably mounted in a ball bearing 7 of the mounting plate 2.
  • the rotor 5, which is provided with permanent magnets or is correspondingly magnetized, is surrounded by the stator 8, which has an annular coil.
  • the two output terminals of the generator are formed by two spring contacts 9, which point obliquely outwards in the unloaded state.
  • the mounting plate 2 is provided with an annular flange 10 intended for clamping the module in the watch housing.
  • FIGs 2 and 3 show a first embodiment of a wristwatch with a module 1 according to Figure 1.
  • the housing of this watch consists of a middle part 11, which is closed at the top by a watch glass 13, and a bottom 12.
  • a clockwork 14 is from the middle part 11 and carries a dial 15.
  • the module 1 arranged, which has on its upper side the generator 3 with rotor 5 and stator 8 and on its lower side the flywheel 4, which is fastened with a screw 4a at the lower end of the pivot 6 ( Figure 1).
  • the module 1 with its ring flange 10 is inserted in a recess 11a of the middle part 11 and is automatically clamped when the housing is closed by pressing the bottom 12 into the middle part 11.
  • the fastening of the clockwork 14 and the arrangement of the recess 11a are selected such that there is a free space between the clockwork 14 and the module 1, so that the clockwork 14 is in no way mechanically loaded by the module 1.
  • the underside of the module with the flywheel 4 is at a distance from the floor 12.
  • the necessary electrical contact is made automatically between the generator terminals and a rechargeable power source, preferably a rechargeable battery 16, which is arranged in a conventional manner in a recess of the clockwork 14.
  • a rechargeable power source preferably a rechargeable battery 16
  • One of the contact springs 9 touches the ground pole of the battery, usually the outer positive pole, and the other contact spring 9 touches an accessible contact on the underside of the movement 14, which is in conductive connection with the other pole of the battery.
  • the flywheel 4 of the module When the clock moves, the flywheel 4 of the module, and thus the rotor 3 of the generator, is rotated so that the magnets located along the circumference of the rotor are moved in front of the toroidal coil of the stator 8, as a result of which current pulses are generated in a known manner serve to charge the battery 16 after rectification.
  • the required Electronics or the required electronic components are accommodated in module 1, preferably on a printed circuit board and / or an integrated circuit, but can also be accommodated in a movement holder ring or housing ring which is in the Example shown in Figures 6 and 7 may be installed.
  • FIGS. 4 and 5 show a base 12, which belongs to a second example of a small clock, which is not otherwise shown in detail, and which has a recess 12a on its upward edge, in which the module 1 with its ring flange 10 is inserted.
  • the ring flange 10 of the module is pressed against the underside of the middle part of the case and clamped in place.
  • the arrangement is such that the top of module 1, where rotor 5, stator 8 and spring contacts 9 are located, is at a certain distance from the clockwork.
  • the underside of the module 1, where the flywheel 4 is located is at a certain distance from the floor 12.
  • the watch case not shown
  • the movement holder ring 17 has a recess 17a on the underside in which the module 1 with its ring flange 10 is inserted.
  • the base presses against the ring flange 10 with an upwardly directed edge, as in the example according to FIG. 2, and thus clamps the module 1 in place.
  • the top of module 1 with rotor 5, stator 8 and contact springs 9 is at a distance from the clockwork, and the The bottom of the module 1 with the flywheel 4 is at a distance from the ground.
  • the module 1 consists of the housing base 18, which at the same time forms the mounting plate, the generator 3 with rotor 5 and stator 8 and the flywheel 4 arranged above the generator.
  • a pin 19 is formed or fastened , around which the moving parts of the module 1, namely the rotor 5 and the flywheel 4 are rotatably mounted by means of a ball bearing 20.
  • the contact springs 9 connected to the terminals of the ring coil of the stator 8 are bent in such a way that they project laterally past the flywheel 4 at an angle upwards.
  • This module 1 with the base 18 can be pressed directly into a middle part of the housing, as shown in FIG. 9 using the example of a wristwatch.
  • This watch has a middle section 11 with a lower recess 11a for module 1, a movement holder ring 21 or case ring that holds the clockwork 14, a dial 15 and a glass 13. Again, the top of the module 1 with the flywheel 4 is at a distance from Clockwork 14.
  • the rechargeable battery which is arranged as in the clock of Figure 2, is not shown.
  • module 1 can be combined directly with clockworks and housings of different designs, provided that the housings and clockworks are standardized and have a prescribed diameter.
  • the floor can also be made of glass. Instead of a floor that can be assembled by pressing, a floor with a screw fastening can also be provided.
  • the current source can also be a capacitor.
  • FIG. 10 shows a small watch with a one-piece housing shell 22, into which the module 1 with its ring flange 10 is inserted into a recess 22a and which is closed at the top by a glass 13.
  • the distance to the overlying movement 14 is ensured by a movement holder ring or housing ring 23 holding the movement, which at the same time clamps the ring flange 10 of the module 1.
  • the dial 13 is held on the edge by a height ring 24.
  • the flywheel 4 of the module 1, which in turn is provided with spring contacts 9, is located below.
  • the battery in the clockwork is not shown
  • the spacer element can also be a spacer ring, which consists of metal or plastic, in particular elastically flexible plastic.
  • the housings described can also have a pressed-on ring of glass.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
EP19950810316 1994-05-20 1995-05-11 Petite montre électronique Expired - Lifetime EP0683442B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH157894 1994-05-20
CH1578/94 1994-05-20

Publications (2)

Publication Number Publication Date
EP0683442A1 true EP0683442A1 (fr) 1995-11-22
EP0683442B1 EP0683442B1 (fr) 1998-04-15

Family

ID=4213697

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19950810316 Expired - Lifetime EP0683442B1 (fr) 1994-05-20 1995-05-11 Petite montre électronique

Country Status (3)

Country Link
EP (1) EP0683442B1 (fr)
DE (1) DE59501881D1 (fr)
HK (1) HK1008151A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1821163A3 (fr) * 2006-02-13 2012-06-13 Ventura Watch SA Montre avec génératarice

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH356412A (fr) * 1959-08-08 1961-08-15 Piquerez Sa Ervin Boîte de montre contenant une source d'électricité disposée dans un évidement intérieur du fond
US4008566A (en) * 1975-11-10 1977-02-22 Mcclintock Richard D Electronic watch generator
FR2349868A1 (fr) * 1976-04-29 1977-11-25 Horlogerie Cie Europ Procede de fabrication d'une montre a pile, et montre resultant de l'execution de ce procede
GB2072897A (en) * 1980-03-31 1981-10-07 Ebauchesfabrik Eta Ag Arrangement for securing and electrically contracting a battery in a watch
WO1984001041A1 (fr) * 1982-09-03 1984-03-15 Petrus Matheus Josephus Knapen Mini-generateur a courant alternatif/accumulateur a courant continu portatif pour une mini-capacite de puissance
EP0483065A1 (fr) * 1990-10-22 1992-04-29 Charles Gigandet S.A. Montre-bracelet

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH356412A (fr) * 1959-08-08 1961-08-15 Piquerez Sa Ervin Boîte de montre contenant une source d'électricité disposée dans un évidement intérieur du fond
US4008566A (en) * 1975-11-10 1977-02-22 Mcclintock Richard D Electronic watch generator
FR2349868A1 (fr) * 1976-04-29 1977-11-25 Horlogerie Cie Europ Procede de fabrication d'une montre a pile, et montre resultant de l'execution de ce procede
GB2072897A (en) * 1980-03-31 1981-10-07 Ebauchesfabrik Eta Ag Arrangement for securing and electrically contracting a battery in a watch
WO1984001041A1 (fr) * 1982-09-03 1984-03-15 Petrus Matheus Josephus Knapen Mini-generateur a courant alternatif/accumulateur a courant continu portatif pour une mini-capacite de puissance
EP0483065A1 (fr) * 1990-10-22 1992-04-29 Charles Gigandet S.A. Montre-bracelet

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1821163A3 (fr) * 2006-02-13 2012-06-13 Ventura Watch SA Montre avec génératarice

Also Published As

Publication number Publication date
HK1008151A1 (en) 1999-04-30
DE59501881D1 (de) 1998-05-20
EP0683442B1 (fr) 1998-04-15

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