EP1544692A1 - Elektromechanischer Uhr, der mit einem Gangreserveanzeiger ausgerüstet ist - Google Patents

Elektromechanischer Uhr, der mit einem Gangreserveanzeiger ausgerüstet ist Download PDF

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Publication number
EP1544692A1
EP1544692A1 EP03104738A EP03104738A EP1544692A1 EP 1544692 A1 EP1544692 A1 EP 1544692A1 EP 03104738 A EP03104738 A EP 03104738A EP 03104738 A EP03104738 A EP 03104738A EP 1544692 A1 EP1544692 A1 EP 1544692A1
Authority
EP
European Patent Office
Prior art keywords
generator
power reserve
timepiece
display
display means
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
EP03104738A
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English (en)
French (fr)
Other versions
EP1544692B1 (de
Inventor
François Gueissaz
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.)
Asulab AG
Original Assignee
Asulab AG
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 Asulab AG filed Critical Asulab AG
Priority to DE60312536T priority Critical patent/DE60312536T2/de
Priority to EP03104738A priority patent/EP1544692B1/de
Priority to TW093137792A priority patent/TWI354191B/zh
Priority to SG200407717A priority patent/SG113021A1/en
Priority to CN200410101220.XA priority patent/CN1629754B/zh
Priority to US11/011,552 priority patent/US7274624B2/en
Priority to JP2004364126A priority patent/JP4537190B2/ja
Publication of EP1544692A1 publication Critical patent/EP1544692A1/de
Priority to HK05110086.9A priority patent/HK1078141A1/xx
Application granted granted Critical
Publication of EP1544692B1 publication Critical patent/EP1544692B1/de
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
    • G04C10/04—Arrangements of electric power supplies in time pieces with means for indicating the condition of the power supply
    • G—PHYSICS
    • G04—HOROLOGY
    • G04C—ELECTROMECHANICAL CLOCKS OR WATCHES
    • G04C10/00—Arrangements of electric power supplies in time pieces

Definitions

  • the present invention relates, in general, to a timepiece with micro-generator with indicator of the power reserve.
  • the invention relates more particularly the means for providing this reserve indication of walk. It also relates to the method used to indicate the reserve Steps.
  • a timepiece represented in FIG. comprising a source of mechanical energy formed by a cylinder 1 in which is housed a spring 1a, manual or automatic winding, the winding device not being represented here.
  • the barrel 1 is mechanically coupled to the magnetized rotor 2a of a generator 2.
  • the generator 2 comprises at least one coil 2b of which is generated an alternating voltage Ug, when the rotor 2a magnet is rotated, generating a magnetic field symbolized at by means of an arrow and with which is coupled said at least one coil 2b.
  • the terminals of the coil 2b are connected to a rectifier 4 outputting a rectified voltage Ua for supplying the circuit regulator 6, which will be discussed below.
  • the speed of rotation of the needles 5 is maintained at a constant average value thanks to the regulator circuit 6, which is to slave the frequency of the generator to a reference frequency, so that the speed of the hands corresponds to the speed required to obtain a correct indication of the time.
  • This regulator circuit 6 comprises an oscillator 6a stabilized by a quartz crystal watchmaker type and a frequency divider 6b reducing the frequency of this oscillator 6a at a frequency usable by a logic circuit which controls 6c, by means of a control signal, a switching element 7, for example a transistor, for braking generator 2 in order to regulate its frequency at a frequency preferably corresponding to a correct indication of the time by the display devices of the time indication 5.
  • the timepiece also comprises a device power reserve indicator 9.
  • This device includes a counter 9a counting the successive braking signals 8 during a period of time determined by means of an additional frequency divider 9b.
  • a memory 9c is connected at the output of the counter 9b so as to store the recorded data during the specified period of time, at the exit of which is connected a decoder 9d transforming the stored data into a control signal of display means 9e of the power reserve comprising successive lines which illuminate or appear to the point corresponding to the value of the quantity measured or calculated, by means of either a colored band or a liquid crystal cell.
  • a timepiece to generator whose autonomy is higher.
  • Such a timepiece represented in Figure 2, furthermore includes common elements, bearing the same references digital and already described in connection with Figure 1, a storage device 10 intended to store and restore electrical energy constituted by a part of the electrical energy of the generator 2.
  • This storage device 10 connected to the terminals of the rectifier 4, comprises a conventional accumulator 10a.
  • the voltage Ug is obviously zero. If in addition, the accumulator 10a of the storage device 10 is discharged, the voltage Ua is also void, or in any case insufficient for the timepiece to work. If the barrel spring 1 a is then reassembled, there comes a time when the rotor 2a begins to turn, and where the Ug and Ua voltages start to increase.
  • the accumulator 10a is completely, or at least almost completely, unloaded when the timepiece is stopped.
  • this accumulator 10a begins to charge by absorbing some of the electrical energy provided by the generator 2.
  • This additional electricity is of course provided by the mainspring of barrel 1 a and comes from the conversion by the generator 2 of at least a part of the mechanical energy of the spring.
  • the accumulator 10a is then at least partially charged, so that the storage device 10 maintains the voltage Ua to a value such that the components of the regulator circuit 6 operate correctly.
  • the electrical energy necessary for this operation is then provided, at least partially, by the accumulator 10a.
  • this timepiece which includes a device for storage 10 capable of storing, in the form of electrical energy, a portion of the mechanical energy contained in its mainspring is increased by means of means that make it possible to use this electrical energy to operate the room after the barrel spring is no longer sufficiently armed.
  • the idea according to the invention is to provide a reliable indication of the power reserve at the request of the user, without disrupt the normal operation of the timepiece, i.e. while ensuring a correct indication of the time.
  • the electromagnetic braking device the generator allows, full reserve of march, that is to say with the spring of the fully armed barrel, to clear a relatively high average power.
  • the idea is to modify the device for recovering and electrically storing the dissipated energy during the braking periods, within a reasonable amount of time in order to be able to momentarily display additional information, such as power reserve.
  • means for storing electrical energy for storing the energy dissipated during generator braking periods as well as actuating means for activating, on request, means for indicating the power reserve of the timepiece thanks to the stored electrical energy previously.
  • the subject of the present invention is a timepiece in generator whose characteristics are set forth in claim 1.
  • the subject of the present invention is also the method of indicating the power reserve for such a timepiece.
  • the invention proceeds, as already mentioned, from the general idea of accumulate the electrical energy dissipated during braking periods of the generator in order to have sufficient energy to indicate, on request, the reserve of a timepiece.
  • the energy dissipated during the braking periods of the generator represents a average instantaneous power of about one microwatt (a microamp of average current under about one volt), insufficient to continuously supply an indicator power reserve.
  • the idea is to be able to accumulate, within a period of time reasonable, for example a few minutes, sufficient energy to display momentarily the power reserve.
  • a quantity of energy between 40 and 80 microjoules proves to be ample. This energy must also be able to be released in a short time, i.e. we must be able to have a power much higher instantaneous (up to a thousand times more) than average power brake dissipation, depending on the type of power reserve indicator used.
  • FIG. 3 represents a simplified diagram a timepiece according to a preferred embodiment of the invention.
  • FIG. 3 represents a simplified diagram a timepiece according to a preferred embodiment of the invention.
  • a timepiece provided with a source of energy mechanical formed by a barrel 1 in which is housed a barrel spring 1a.
  • the barrel is mechanically coupled, on the one hand, to the generator 2 whose voltage Ug alternative output generated is rectified through an active rectifier 4 and, on the other hand, means for displaying a time indication 5, conventionally needles, through the cogs 3 of the watch movement.
  • the speed of rotation of the hands is maintained at a constant average value through the circuit 6, or regulator circuit, for controlling the frequency of the generator 2 at a reference frequency, so that the speed of the hands corresponds to the speed required to obtain a correct indication of the time.
  • the timepiece further comprises means for accumulating energy 11 arranged so as to accumulate the dissipated electrical energy during braking periods of generator 2, - i.e. during applied short circuits to the generator via the switching means 7.
  • the means of switching 7 are activated by the regulator circuit 6 when the frequency of the generator is greater than the reference frequency, i.e. when the speed of rotation of the rotor 2a is greater than the needle speed corresponding to a correct indication of the time.
  • the switching means 7 can occupy two positions, one first position 7a, in which the generator 2 is connected to the means 11 for optimum impedance matching with the generator in order to get the maximum power instantly from the latter, which has the effect of braking it and a second position 7b, in which the generator 2 is connected to the regulator circuit 6 to control the frequency of the generator with respect to a reference frequency corresponding to an indication correct time.
  • the accumulation means 11 are preferably formed by an elevator of voltage 11a and an accumulation element 11b.
  • the voltage booster 11a can be for example, a Dickson type charge pump consisting of a plurality of stages arranged in cascade. Each stage of the pump includes a device active, for example a diode or a transistor connected diode, which conducts the current in one direction and storage capacity. It will of course be noted that other types of charge pumps may be used.
  • the accumulation element 11b can to be a simple storage capacitor whose load increases a little more to each braking.
  • the storage element 11b preferably a storage capacitor having a capacity of about 10 microfarads at 3 or 4 volts, can accumulate after a few minutes of braking, an energy of the order of 40 to 80 microjoules.
  • the timepiece comprises an indicator, not shown here, arranged on the dial to indicate when the element 11b is sufficiently charged to supply an indication device of the power reserve 12.
  • This device for indicating the power reserve 12 comprises means for displaying the power reserve 12a and a system for control 12b of these display means.
  • the control system 12b has been here represented independently of the control circuit 6, however, it will be noted that it could be integrated in the control circuit 6 as well.
  • the control system of the power reserve display is operated (signal P) by actuating means 13 of the timepiece accessible externally, such as a push button called "request".
  • This The role of the control system is to provide an accurate indication of the reserve of run (signal R) based on a measurement (signal C) of the power reserve transmitted by the control circuit 6.
  • the energy required to display the reserve of run is provided by the accumulation means (signal A).
  • One method is to provide the control system 12b with means for counting the successive brakings over successive periods of time predetermined duration and to develop a display signal of the reserve of starts from the number of braking occurred during these periods of time successive.
  • a second method is to provide the control system 12b with means to count the number of times the generator is braked, means to measure the time between each braking and to develop a signal display of the power reserve according to the result of the measurement of duration.
  • a third method is to provide the control system 12b with means for transmitting by electrical coupling between the generator 2 and means electromechanical actuation, a measurement of the average current dissipated during braking periods providing an indication of the power reserve to the means display.
  • FIG. 4a-4c Various examples of devices for indicating the power reserve are shown in Figures 4a-4c.
  • the system of command 12b has been integrated in the control circuit 6.
  • FIG. 4a represents a first example using display means digital power reserve.
  • Said display means are constituted by a display 15a of LCD type (Liquid Crystal Display) arranged on the dial of the timepiece.
  • the indication of the power reserve is displayed preferably in percentage in relation to the maximum power reserve, corresponding to the spring fully armed, or in the remaining power reserve hours.
  • These means display can be used with one of the first two methods exposed above.
  • FIG. 4b represents a second example using display means optical power reserve.
  • Said display means are constituted by a light-emitting diode 15b with high efficiency visible through an opening practiced on the dial of the timepiece.
  • the control circuit 14 preferably delivers current pulses Ir, each of these pulses representing a percentage of the total power reserve, for example 20%. So, 5 pulses represent a 100% power reserve, a reserve of maximum walk.
  • These display means can be used with one of the two first methods described above.
  • FIG. 4c represents a third example using display means electromechanical power reserve.
  • Said display means are constituted by an analogue display element, for example a needle 15c, moving relative to representative graduations of the power reserve, disposed in a window arranged on the dial of the timepiece.
  • This body analog display 15c is driven a stepping motor 16, for example of the type Bi-directional lavet, the latter being controlled by electrical coupling with the generator during periods of braking, according to the third method described above.
  • a first variant embodiment of this third example consists in provide an indication of the reserve by means of a bidirectional Lavet motor (16) which allows to automatically adjust the position of the analog display unit (15c) when necessary (signal C) by means of a pulse (signal R), that is to say a step in one direction or another depending on the power reserve decreases or increases, using the accumulated energy (signal A) by the means accumulation. It is important to note that according to this first variant of realization, no intervention of the user of the watch is necessary for obtain an indication of the power reserve whenever the reserve of market varies by a predetermined amount, corresponding, for example, to a step of engine.
  • a second variant embodiment of this third example consists in provide a reset of the analog display member 15c during the actuation of the request push button.
  • the signal P received by the circuit of control 14 command at first, the resetting of the organ display then, in a second step, the indication of the power reserve.
  • the display member then remains fixed in the indication position of the reserve of walk to the next request by the user.
  • a third variant of this third example consists of simply adjust the position of the display member with each request made by the user without prior reset.
  • An intermediate step 1a (between steps 1 and 2) can be provided. This step 1a is to indicate when the accumulated energy level is sufficient to provide an indication of the power reserve.
  • actuating means it is possible to use alternatively, a shock detector at the ice of the timepiece, or still a stem-crown.
EP03104738A 2003-12-16 2003-12-16 Elektromechanische Uhr, die mit einer Gangreserveanzeige ausgerüstet ist Expired - Lifetime EP1544692B1 (de)

Priority Applications (8)

Application Number Priority Date Filing Date Title
DE60312536T DE60312536T2 (de) 2003-12-16 2003-12-16 Elektromechanische Uhr, die mit einer Gangreserveanzeige ausgerüstet ist
EP03104738A EP1544692B1 (de) 2003-12-16 2003-12-16 Elektromechanische Uhr, die mit einer Gangreserveanzeige ausgerüstet ist
TW093137792A TWI354191B (en) 2003-12-16 2004-12-07 Timepiece with power-reserve indication
SG200407717A SG113021A1 (en) 2003-12-16 2004-12-14 Timepiece with power-reserve indication
CN200410101220.XA CN1629754B (zh) 2003-12-16 2004-12-15 具备动力储存指示的时钟
US11/011,552 US7274624B2 (en) 2003-12-16 2004-12-15 Timepiece with power-reserve indication
JP2004364126A JP4537190B2 (ja) 2003-12-16 2004-12-16 パワーリザーブ指示付時計
HK05110086.9A HK1078141A1 (en) 2003-12-16 2005-11-11 Timepiece with power-reserve indication

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP03104738A EP1544692B1 (de) 2003-12-16 2003-12-16 Elektromechanische Uhr, die mit einer Gangreserveanzeige ausgerüstet ist

Publications (2)

Publication Number Publication Date
EP1544692A1 true EP1544692A1 (de) 2005-06-22
EP1544692B1 EP1544692B1 (de) 2007-03-14

Family

ID=34486391

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03104738A Expired - Lifetime EP1544692B1 (de) 2003-12-16 2003-12-16 Elektromechanische Uhr, die mit einer Gangreserveanzeige ausgerüstet ist

Country Status (8)

Country Link
US (1) US7274624B2 (de)
EP (1) EP1544692B1 (de)
JP (1) JP4537190B2 (de)
CN (1) CN1629754B (de)
DE (1) DE60312536T2 (de)
HK (1) HK1078141A1 (de)
SG (1) SG113021A1 (de)
TW (1) TWI354191B (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3432089A1 (de) 2017-07-17 2019-01-23 The Swatch Group Research and Development Ltd Elektromechanische uhr

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20080084792A1 (en) * 2006-10-10 2008-04-10 Seiko Epson Corporation Timepiece
JP5087071B2 (ja) * 2007-02-22 2012-11-28 シチズンホールディングス株式会社 電波修正時計
CH705252B1 (fr) * 2011-07-07 2015-11-30 Blancpain Sa Mouvement d'horlogerie comportant des moyens pour l'affichage d'une grandeur physique.
TWI609259B (zh) * 2014-01-08 2017-12-21 宏碁股份有限公司 充電指示裝置及其方法
EP3502798B1 (de) * 2017-12-20 2020-06-24 The Swatch Group Research and Development Ltd Uhrwerksanordnung, die einen mechanischen oszillator umfasst, der mit einer einstellvorrichtung verbunden ist
EP3502796B1 (de) * 2017-12-20 2020-05-20 The Swatch Group Research and Development Ltd Uhrwerksanordnung, die einen mechanischen oszillator umfasst, der mit einer einstellvorrichtung verbunden ist
EP3591476B1 (de) 2018-07-02 2021-04-21 The Swatch Group Research and Development Ltd Thermoelektrische armbanduhr, die von ihrem träger getestet werden kann

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3937001A (en) * 1972-11-21 1976-02-10 Berney Jean Claude Watch movement driven by a spring and regulated by an electronic circuit
CH686332GA3 (fr) * 1994-04-25 1996-03-15 Asulab Sa Pièce d'horlogerie mue par une source d'énergie mécanique et régulée par un circuit électronique.
EP0762243A1 (de) * 1995-08-10 1997-03-12 Asulab S.A. Uhr mit Gangreserveanzeige
US5751666A (en) * 1996-08-01 1998-05-12 Asulab S.A. Electronic timepiece comprising a generator driven by a spring barrel
EP0848306A1 (de) * 1996-12-10 1998-06-17 Asulab S.A. Zeitmessgerät mit einem Generator zur Erzeugung elektrischer Energie
EP0875807A1 (de) * 1997-04-28 1998-11-04 Asulab S.A. Elektronisches Uhrwerk gespeist von einem Generator, der durch eine mechanische Energiequelle angetrieben wird
EP1239350A2 (de) * 2001-03-06 2002-09-11 Seiko Epson Corporation Elektronisches Gerät, elektronisch gesteuertes mechanisches Uhrwerk, Verfahren zu deren Steuerung, Programm zur Steuerung eines elektronischen Gerätes und Speichermedium
US20020136151A1 (en) * 2001-03-20 2002-09-26 Eta Sa Fabriques D' Ebauches Timepiece including a generator

Family Cites Families (5)

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Publication number Priority date Publication date Assignee Title
DK0848842T3 (da) * 1996-06-26 1999-11-08 Konrad Schafroth Urværk
TW351782B (en) * 1997-04-28 1999-02-01 Asulab Sa Electronic timepiece supplied by a generator driven by a mechanical power source
JP3601297B2 (ja) * 1998-05-29 2004-12-15 セイコーエプソン株式会社 電子制御式機械時計
FR2815729B1 (fr) * 2000-10-24 2003-03-28 Isa France Sa Dispositif d'indication de l'etat de piles, destine a equiper une montre
US6826124B2 (en) * 2002-12-04 2004-11-30 Asulab S.A. Timepiece with power reserve indication

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3937001A (en) * 1972-11-21 1976-02-10 Berney Jean Claude Watch movement driven by a spring and regulated by an electronic circuit
CH686332GA3 (fr) * 1994-04-25 1996-03-15 Asulab Sa Pièce d'horlogerie mue par une source d'énergie mécanique et régulée par un circuit électronique.
EP0762243A1 (de) * 1995-08-10 1997-03-12 Asulab S.A. Uhr mit Gangreserveanzeige
US5751666A (en) * 1996-08-01 1998-05-12 Asulab S.A. Electronic timepiece comprising a generator driven by a spring barrel
EP0848306A1 (de) * 1996-12-10 1998-06-17 Asulab S.A. Zeitmessgerät mit einem Generator zur Erzeugung elektrischer Energie
EP0875807A1 (de) * 1997-04-28 1998-11-04 Asulab S.A. Elektronisches Uhrwerk gespeist von einem Generator, der durch eine mechanische Energiequelle angetrieben wird
EP1239350A2 (de) * 2001-03-06 2002-09-11 Seiko Epson Corporation Elektronisches Gerät, elektronisch gesteuertes mechanisches Uhrwerk, Verfahren zu deren Steuerung, Programm zur Steuerung eines elektronischen Gerätes und Speichermedium
US20020136151A1 (en) * 2001-03-20 2002-09-26 Eta Sa Fabriques D' Ebauches Timepiece including a generator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3432089A1 (de) 2017-07-17 2019-01-23 The Swatch Group Research and Development Ltd Elektromechanische uhr
EP3432088A1 (de) 2017-07-17 2019-01-23 The Swatch Group Research and Development Ltd Elektromechanische uhr

Also Published As

Publication number Publication date
US20050128881A1 (en) 2005-06-16
JP4537190B2 (ja) 2010-09-01
HK1078141A1 (en) 2006-03-03
JP2005181322A (ja) 2005-07-07
US7274624B2 (en) 2007-09-25
SG113021A1 (en) 2005-07-28
TW200525318A (en) 2005-08-01
DE60312536D1 (de) 2007-04-26
DE60312536T2 (de) 2007-11-22
CN1629754A (zh) 2005-06-22
CN1629754B (zh) 2010-06-16
EP1544692B1 (de) 2007-03-14
TWI354191B (en) 2011-12-11

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