EP1674952B1 - Pièce d'horlogerie radio-controlée avec un cadran métallique - Google Patents

Pièce d'horlogerie radio-controlée avec un cadran métallique Download PDF

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Publication number
EP1674952B1
EP1674952B1 EP05021129A EP05021129A EP1674952B1 EP 1674952 B1 EP1674952 B1 EP 1674952B1 EP 05021129 A EP05021129 A EP 05021129A EP 05021129 A EP05021129 A EP 05021129A EP 1674952 B1 EP1674952 B1 EP 1674952B1
Authority
EP
European Patent Office
Prior art keywords
radio
aerial
antenna
metallic
controlled wristwatch
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.)
Not-in-force
Application number
EP05021129A
Other languages
German (de)
English (en)
Other versions
EP1674952A2 (fr
EP1674952A3 (fr
Inventor
Roger Gunnarsson
Günter Megner
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.)
Junghans Uhren GmbH
Original Assignee
Junghans Uhren GmbH
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 Junghans Uhren GmbH filed Critical Junghans Uhren GmbH
Publication of EP1674952A2 publication Critical patent/EP1674952A2/fr
Publication of EP1674952A3 publication Critical patent/EP1674952A3/fr
Application granted granted Critical
Publication of EP1674952B1 publication Critical patent/EP1674952B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/27—Adaptation for use in or on movable bodies
    • H01Q1/273—Adaptation for carrying or wearing by persons or animals
    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G21/00—Input or output devices integrated in time-pieces
    • G04G21/04—Input or output devices integrated in time-pieces using radio waves
    • G—PHYSICS
    • G04—HOROLOGY
    • G04R—RADIO-CONTROLLED TIME-PIECES
    • G04R60/00—Constructional details
    • G04R60/06—Antennas attached to or integrated in clock or watch bodies
    • G04R60/10—Antennas attached to or integrated in clock or watch bodies inside cases
    • G04R60/12—Antennas attached to or integrated in clock or watch bodies inside cases inside metal cases
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop

Definitions

  • the invention relates to a radio wristwatch with the features of the preamble of claim 1.
  • Such a radio-controlled watch is eg in WO 2004/025782 A1 described.
  • Radio wristwatches are known in the art in a variety of variations. They are suitable for receiving and decoding the time signal signals emitted by a long-wave time signal transmitter and for displaying the corresponding time on a display and / or by means of a pointer. Most radio-controlled wristwatches automatically switch to reception at least twice a day to receive the time signals sent by the corresponding time-sign transmitter and to set the time according to this specification. During the rest of the day, it will be continued with an internal quartz movement.
  • Long wave time signal transmitters generally emit frequencies between 20 and 100 kHz. For example, there are in Japan, two time signal transmitters with a transmission frequency of 40 and 60 kHz. The so far only German time signal transmitter DCF77 transmits on a frequency of 77.5 kHz.
  • the long-wave antenna was arranged in the first radio wristwatches outside the metal watch case. So it is for example from the DE 35 08 366 A1 or the DE 88 15 967 U1 known to incorporate the antenna in the watch band. Such an arrangement has the disadvantage that the antenna is easily broken due to their exposed position. In addition, there is a risk that the electrical connection between the antenna and clockwork is interrupted by mechanical stress.
  • the mechanical and electrical connection between the movement and the antenna is then less sensitive to external influences.
  • the watch case of this wireless wristwatch consists of a metal middle section and a base of non-conductive material.
  • the antenna core of the long-wave antenna is offset from the metal housing middle part radially to the center of the housing, but it is located in the axial region of the metal middle part.
  • a plastic spacer spacer ring is inserted into the middle part of the housing.
  • the invention is based on the object, such a radio clock of the generic type and further develop, so that further components of a conventional wristwatch can be used with quartz movement or purely mechanical movement.
  • the radio wristwatch according to the invention differs from the prior art in that instead of a non-conductive, especially non-metallic, dial, it has a dial made of a metallic material.
  • the antenna for receiving timing signals is still in the watch case. However, it is located more than about 0.5 millimeters from the metallic dial. It has been shown that, contrary to the prevailing prevailing opinion, according to which no metallic dial can be used in a radio-controlled watch due to their small dimensions, without disturbing the reception of a time signal such that a meaningful evaluation is no longer possible, already this distance sufficient is to ensure adequate reception.
  • this distance of more than about 0.5 mm is sufficient, it is favorable for reasons of tolerable manufacturing tolerances, when the magnetic long-wave antenna is placed at a distance of 1 to 4 millimeters to the metallic dial.
  • such a distance can be set comparatively reliably during assembly, on the other hand, the tuning of the antenna resonant circuit is simpler, since the electromagnetic interaction between the antenna and the metallic dial is comparatively low.
  • the invention provides between the dial and the antenna a dial spacer of electrically non-conductive material which maintains the antenna at a predetermined (axial) distance from the dial.
  • the antenna is arranged at a distance of 2 to 3 millimeters to the metal dial, which limits the axial space requirement to the hitherto usual level for radio wristwatches with non-metallic dials.
  • dials of different metallic materials or materials with metallic coatings
  • the dial is made entirely of brass. Brass dials are commonly used in quartz wristwatches or mechanical wristwatches for ease of processing. In addition, this material provides the ideal foundation for most of the design variations of a watch designer.
  • linear, rod-shaped ferrite antennas such as in the DE 93 18 224 U1 or the DE 299 23 446 U1 described arcuately curved antennas with a core of flexible soft iron lamellae, such as in the EP 0 896 262 A1 described, short coil antennas, such as in the EP 0 382 130 B2 described, or even long-wave antennas with or without core in different configuration, such as in the DE 296 07 866 U1 described, are used.
  • the antenna is arranged asymmetrically to a (possibly imaginary) pointer axis.
  • the movement can then be conveniently arranged in the same plane as the antenna and adjacent to it.
  • the metallic dial can be used in combination with a non-metallic housing.
  • a non-metallic housing as stated above, is not widely accepted by customers, the metallic dial according to the invention finds application in a preferred embodiment in connection with a housing with a metallic middle part, as in the US Pat DE 299 23 446 U1 described.
  • Suitable materials for the metallic middle part are in particular considered: (for example, produced by injection molding) plastics or ceramics with metallic coating, stainless steel or titanium.
  • the invention provides that the antenna in the watch case with respect to the dial and possibly the metallic middle part is immovably fixed. Immobile fixation is understood to mean that the position of the antenna relative to the adjacent metallic part does not change under normal operating conditions when the user wears the watch on his arm.
  • the invention provides between the metallic middle part and the antenna a middle part spacer, in particular a spacer, made of an electrically non-conductive material which covers the antenna at a predetermined (radial) distance from the metallic middle part holds.
  • the dial spacers and the middle part spacers plastics (eg as an injection molded part) or ceramics are considered. Both spacers can be made independently and possibly made of different materials consist. However, it is also possible to make the dial spacers and the middle part spacers in the same material and / or in one piece.
  • the dial spacer is designed as a clockwork and / or the antenna-holding work plate. Accordingly, the worksheet not only fulfills the function holding the work; but also the antenna spacing functionality.
  • the work plate may also have a (possibly integral with the work plate) holding device for the antenna. The functionality of the fixation of the antenna with respect to the dial and preferably also with respect to the (possibly metallic) central part is then also taken from the worksheet.
  • the invention provides that the dial spacers, in particular the work plate, is connected in the manner of a plug connection with the dial.
  • the invention therefore provides for manufacturing reasons, a bottom of an electrically non-conductive material, in particular of plastic or glass before.
  • FIG. 1 Of the FIG. 1 are the essential components of a first embodiment of a radio watch according to the invention refer to. Not shown are the housing with a watch glass, a central part of electrically conductive material, namely stainless steel, and a bottom of glass enclosed by a metallic hoop.
  • a brass dial 1 is used in the housing, not shown.
  • the brass dial 1 is the same as a quartz watch commonly used dial. It has a thickness d z of about 0.5 to 1 mm.
  • the work plate 2 is placed on the brass dial 1 .
  • the work plate 2 is also formed in a conventional manner. It is made of plastic and was produced by injection molding.
  • the work plate 2 is used to hold a movement 3, a magnetic long-wave antenna in the form of a lamellar antenna 4 for receiving timing signals, a radio reception and the clockwork controlling and regulating electronics 5 and a battery 6.
  • the thickness d w of the work plate 2 is in general 0.5 to 1 mm.
  • a movement holder 7 which surrounds the movement 3, the electronics 5 and the battery 6 on the outer peripheral side.
  • the movement retaining ring 7 is recessed in the present embodiment. However, it can also be formed circumferentially, such as in the DE 299 23 446 U1 described.
  • the axial extension of the Werkhalterings 7 is given in this case by the position of the electronic components receiving board 8, which is supported against the Werkhaltering 7. On the Maschinenhaltering 7 could However, also be waived or he could, for example, extend to the bottom of the watch case.
  • the work plate 2 is rigidly connected to the brass dial 1 in the present embodiment. This rigid connection is made by means of a plug connection device.
  • the connector device comprises according to the Figures 1b ) and 1c ) Several integrally formed on the brass dial 1 pin 9, which engage substantially in shape and function complementary in corresponding recesses, preferably holes 10, in the work plate 2.
  • the movement 3 in the present exemplary embodiment is a pointer movement.
  • the (not shown here) pointer driving waves 11 enforce the work plate 2 and the brass dial 1 centrally.
  • the fin antenna 4 is similar to that in the document EP 0 896 262 A1 formed magnetic long-wave antenna is formed. It comprises a laminated core 12 made of a stack of flexible strips of soft magnetic material (eg amorphous lamella material) of high permeability, which carries an antenna coil 13. The inductance of the antenna coil is greater than or equal to one millihenry (1mH).
  • a laminated core 12 made of a stack of flexible strips of soft magnetic material (eg amorphous lamella material) of high permeability, which carries an antenna coil 13.
  • the inductance of the antenna coil is greater than or equal to one millihenry (1mH).
  • the lamellar antenna 4 is arranged asymmetrically to the pointer axis ax and in the same axial position as the annular metallic middle part of the housing.
  • the distance a axA from the pointer axis ax to the antenna axis 15 is 10 mm in the present exemplary embodiment.
  • the lamellar antenna 4 is inserted into a receiving sleeve 14, which the antenna coil 13 and the arcuately curved and the antenna coil 13 almost completely receives and encloses on both sides projecting ends of the antenna core 12.
  • the receiving sleeve 14 is made of an electrically non-conductive material, preferably made of plastic. It is executed in the present embodiment as a separate seated on the work plate 2 component and preferably rigidly connected thereto. However, the receiving sleeve 14 may also be embodied in one piece and / or with the same material as the work plate 2.
  • the receiving sleeve 14 is used together with the work plate 2 for holding and Zwischdistanzierung the antenna 4 to the brass dial 1 and the surrounding metallic middle part of the housing.
  • the distance a ZA between dial 1 and antenna 4 is selected in the present embodiment to 1.4 mm.
  • the distance a GS between the middle part of the housing and the antenna coil 13 is 8 mm.
  • the distance a GK between the middle part of the housing and the antenna core 12 is 10 mm.
  • receiving sleeve 14 may also have a likewise force-distancing spacer acting in the DE 299 23 446 U1 be provided described type. Of course, this may be formed of the same material and possibly in one piece with the work plate 2.
  • FIG. 2 Of the FIG. 2 are the essential components of a second embodiment of a radio watch according to the invention can be seen.
  • This radio-controlled watch agrees in essential details with the embodiment of the FIG. 1 match.
  • Identical or functionally identical components are therefore in the FIG. 2 provided with the same reference numerals.
  • a radio wristwatch the housing with a watch glass, a central part of electrically conductive material, namely titanium, and a bottom of a titan rim edged glass.
  • a brass dial 1 is used in the housing, not shown.
  • the brass dial 1 is identical to that according to the FIG. 1 educated. It has a thickness d z of about 0.5 to 1 mm.
  • a work plate 2 of the type described above is also placed here and immovably connected with this about engaging in corresponding holes 10 pin 9.
  • the work plate 2 is used to hold a movement 3, a long-wave magnetic antenna in the form of a ferrite antenna 16 for receiving timing signals, a radio receiving and the movement 3 controlling and regulating electronics 5 and a battery 6.
  • the thickness d w of the work plate 2 amounts also here about 0.5 to 1 mm.
  • An integral part of the work plate 2 is also in the present embodiment, a movement retaining ring 7, which surrounds the movement 3 circumferentially.
  • the ferrite antenna 16 is similar to that in the document DE 299 23 446 U1 formed magnetic long-wave antenna is formed. It comprises an elongated prismatic antenna ferrite core 17 carrying an antenna coil 18. The inductance of the antenna coil used is greater than or equal to one millihenry (1mH).
  • the ferrite antenna 16 is arranged asymmetrically to the pointer axis ax and in the same axial position as the annular metallic middle part of the housing.
  • the distance a axA of the pointer axis ax to the antenna axis 19 is 8 mm in the present embodiment.
  • the ferrite antenna 16 is presently placed directly on the work plate 2. It is held by two parallel arranged and placed on the work plate 2 collar 20, 21. A sleeve-shaped enclosure of the ferrite antenna 16 is not provided.
  • the work plate 2 is used solely for the forced distance of the antenna 16 to the brass dial 1.
  • the distance a ZA between dial 1 and antenna 16 is therefore identical in the present embodiment with the thickness d w of the work plate and is about 0.5 to 1 mm.
  • the distance a GS between the middle part of the housing and the antenna coil 18 is 0.5 mm.
  • the distance a GK between the middle part of the housing and the antenna core 17 is 1.3 mm.
  • FIGS. 3 and 4 two antenna circuits can be taken as an example.
  • the FIG. 3 shows an antenna resonant circuit with so-called “single-ended input”, of the FIG. 4 If you take an antenna resonant circuit with so-called “differential input”.
  • the "single-ended input" antenna circuit 22 comprises a parallel connection of an antenna inductance L ANT given by the antenna 4, 16 (amorphous, ferrite) used and an antenna capacitance C ANT , whose one terminal is connected to a reference potential is.
  • the RFI connector is connected to the unbalanced antenna input of the receiver IC.
  • the differential input antenna resonant circuit 23 comprises a parallel circuit comprising an antenna inductance L ANT and an antenna capacitance C ANT , one terminal of which is connected to a reference potential.
  • the RFIP connector is connected to the positive balanced antenna input of the receiver IC.
  • the RFIM connector is connected to the negative balanced antenna connector of the receiver IC.
  • the resonance frequency of the respective antenna resonant circuit is adjusted to the maximum voltage gain at the receiving frequency, depending on the dial and housing material.
  • the antenna resonant circuit coupling takes place symmetrically or asymmetrically.

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)
  • Electromechanical Clocks (AREA)
  • Support Of Aerials (AREA)

Claims (12)

  1. Montre-bracelet radio-pilotée comprenant un boîtier muni d'un cadran métallique (1) et une antenne (4, 16) logée dans le boîtier comportant, une bobine (13, 18) montée sur un noyau (12, 17) pour permettre la réception de signaux chronologiques, ainsi qu'une plaque usinée (2),
    caractérisée en ce que
    l'antenne (4, 16) est située à une distance (aZA) de plus d'environ 0,5 millimètre, de préférence à une distance (aZA) de 1 à 4 millimètres, de façon plus préférentielle à une distance (aZA) de 1 à 3 millimètres du cadran (1) et, entre le cadran (1) et l'antenne (4, 16) est prévue la plaque (2) qui constitue un élément d'écartement du cadran (2, 14) et est réalisée en un matériau non électriquement conducteur, l'antenne (4, 16) étant maintenue avec sa bobine (13, 18) dans un manchon de réception (14) situé sur la plaque (2) ou entre des rebords (20, 21) situés sur la plaque (2).
  2. Montre-bracelet radio-pilotée conforme à la revendication 1,
    caractérisée en ce que
    le cadran (1) est en laiton.
  3. Montre-bracelet radio-pilotée conforme à la revendication 1 ou 2,
    caractérisée en ce que
    le cadran (1) présente une épaisseur (dz) de 0,5 à 1 millimètre.
  4. Montre-bracelet radio-pilotée conforme à l'une des revendications précédentes,
    caractérisée en ce que
    l'antenne (4, 16) est disposée de façon non symétrique par rapport à l'axe de l'aiguille (ax).
  5. Montre-bracelet radio-pilotée conforme à l'une des revendications précédentes,
    caractérisée en ce que
    le boîtier comporte une partie médiane de boîtier métallique.
  6. Montre-bracelet radio-pilotée conforme à l'une des revendications précédentes,
    caractérisée en ce que
    l'antenne (4, 16) est montée axialement dans la zone de la partie médiane du boîtier métallique.
  7. Montre-bracelet radio-pilotée conforme à l'une des revendications précédentes et en particulier à la revendication 6,
    caractérisée en ce que
    l'antenne (4, 16) est montée fixe dans le boîtier par rapport au cadran (1) et, le cas échéant, par rapport à la partie médiane du boîtier métallique.
  8. Montre-bracelet radio-pilotée conforme à l'une quelconque des revendications 6 ou 7,
    caractérisée en ce que
    entre la partie médiane du boîtier métallique et l'antenne (4, 16) est monté un élément d'écartement de la partie médiane du boîtier, en particulier un anneau d'écartement en un matériau non électriquement conducteur qui maintient l'antenne (4, 16) et en particulier le noyau de l'antenne (12, 17) à une distance prédéfinie (aGK) de la partie médiane du boîtier métallique.
  9. Montre-bracelet radio-pilotée conforme à la revendication7,
    caractérisée en ce que
    la plaque (2) est reliée au cadran (1) par une liaison de type liaison par enfichage (9, 10).
  10. Montre-bracelet radio-pilotée conforme à l'une des revendications précédentes,
    caractérisée en ce que
    l'antenne (4, 16) comporte une bobine d'antenne (13, 18) ayant une inductance (LANT) dépassant la valeur de 1 millihenry (mH).
  11. Montre-bracelet radio-pilotée conforme à l'une des revendications précédentes,
    caractérisée en ce que
    le boîtier comporte un fond en un matériau non électriquement conducteur en particulier en matériau synthétique en céramique ou en verre.
  12. Montre-bracelet radio-pilotée conforme à l'une des revendications précédentes,
    caractérisée en ce que
    la fréquence de résonance du circuit oscillant de l'antenne est réglé sur le gain de tension maximum de la fréquence d'émission du signal de temps.
EP05021129A 2004-12-22 2005-09-28 Pièce d'horlogerie radio-controlée avec un cadran métallique Not-in-force EP1674952B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102004063121A DE102004063121A1 (de) 2004-12-22 2004-12-22 Funkarmbanduhr mit Metallzifferblatt

Publications (3)

Publication Number Publication Date
EP1674952A2 EP1674952A2 (fr) 2006-06-28
EP1674952A3 EP1674952A3 (fr) 2007-12-05
EP1674952B1 true EP1674952B1 (fr) 2013-01-23

Family

ID=36129955

Family Applications (1)

Application Number Title Priority Date Filing Date
EP05021129A Not-in-force EP1674952B1 (fr) 2004-12-22 2005-09-28 Pièce d'horlogerie radio-controlée avec un cadran métallique

Country Status (5)

Country Link
US (1) US20060164921A1 (fr)
EP (1) EP1674952B1 (fr)
JP (1) JP2006189437A (fr)
CN (1) CN1794114B (fr)
DE (1) DE102004063121A1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101490630B (zh) * 2006-07-13 2011-10-26 西铁城控股株式会社 带无线功能的钟表
JP5609310B2 (ja) 2009-09-01 2014-10-22 セイコーエプソン株式会社 アンテナ内蔵式時計
DE102012021783A1 (de) 2012-11-06 2014-05-08 EMES Intellectual Property Limited Funkarmbanduhr
DE102012021780A1 (de) 2012-11-06 2014-05-08 EMES Intellectual Property Limited Funkarmbanduhr
JP6132162B2 (ja) * 2014-03-24 2017-05-24 カシオ計算機株式会社 計時装置および腕時計
CN104200183A (zh) * 2014-08-29 2014-12-10 杭州中芯微电子有限公司 腕带及腕带式管理终端系统
JP6424634B2 (ja) * 2015-01-08 2018-11-21 セイコーエプソン株式会社 時計用ムーブメントおよび時計
CH714069A1 (fr) 2017-08-17 2019-02-28 Soprod Sa Module horloger électromécanique comportant une antenne.
CN111029721B (zh) * 2019-11-29 2021-05-25 北京搜狗科技发展有限公司 一种终端设备

Citations (1)

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Publication number Priority date Publication date Assignee Title
DE29714185U1 (de) * 1997-08-08 1998-12-03 Gebrüder Junghans GmbH, 78713 Schramberg Funkarmbanduhr

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CH622661B (fr) * 1978-11-30 Ebauches Bettlach Sa Dispositif de fixation d'un cadran d'horlogerie sur la platine d'un mouvement de montre.
US5966344A (en) * 1994-03-31 1999-10-12 Citizen Watch Co., Ltd. Watch containing light transmitting metallic dial
US6172582B1 (en) * 1996-02-20 2001-01-09 Cts Corporation Saw resonator and ladder filter with specified number of reflector electrode fingers
DE19926271C2 (de) * 1999-06-09 2002-09-26 Junghans Uhren Gmbh Funkarmbanduhr
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US7126880B2 (en) * 2001-06-29 2006-10-24 Trigger Co. Ltd. Radio wristwatch
CN1226672C (zh) * 2001-11-30 2005-11-09 珠海精准电子有限公司 低功耗精确计时装置及校正其精确度的设备和方法
DE20211848U1 (de) * 2002-08-01 2002-10-31 Creativ Product Elektro Und Fe Gehäuse für Funkarmbanduhr
EP1548875B1 (fr) * 2002-09-11 2010-01-13 Citizen Holdings Co., Ltd. Structure d'antenne et horloge de correction radio
JP3594034B1 (ja) * 2003-03-04 2004-11-24 セイコーエプソン株式会社 電波修正時計
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Also Published As

Publication number Publication date
US20060164921A1 (en) 2006-07-27
DE102004063121A1 (de) 2006-07-13
CN1794114B (zh) 2011-01-19
CN1794114A (zh) 2006-06-28
JP2006189437A (ja) 2006-07-20
EP1674952A2 (fr) 2006-06-28
EP1674952A3 (fr) 2007-12-05

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