EP1237059A1 - Benutzung von nichtmagnetischen Leiterbahnen in einem elektronischen Modul, der für eine Zeitmessvorrichtung bestimmt ist - Google Patents

Benutzung von nichtmagnetischen Leiterbahnen in einem elektronischen Modul, der für eine Zeitmessvorrichtung bestimmt ist Download PDF

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Publication number
EP1237059A1
EP1237059A1 EP01200754A EP01200754A EP1237059A1 EP 1237059 A1 EP1237059 A1 EP 1237059A1 EP 01200754 A EP01200754 A EP 01200754A EP 01200754 A EP01200754 A EP 01200754A EP 1237059 A1 EP1237059 A1 EP 1237059A1
Authority
EP
European Patent Office
Prior art keywords
magnetic
timepiece according
timepiece
electronic module
functional unit
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
EP01200754A
Other languages
English (en)
French (fr)
Other versions
EP1237059B1 (de
Inventor
Frédéric Leuba
Denis Burdet
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.)
ETA SA Manufacture Horlogere Suisse
Original Assignee
ETA SA Manufacture Horlogere Suisse
Ebauchesfabrik ETA AG
Eta SA Fabriques dEbauches
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 ETA SA Manufacture Horlogere Suisse, Ebauchesfabrik ETA AG, Eta SA Fabriques dEbauches filed Critical ETA SA Manufacture Horlogere Suisse
Priority to AT01200754T priority Critical patent/ATE464591T1/de
Priority to EP01200754A priority patent/EP1237059B1/de
Priority to DE60141808T priority patent/DE60141808D1/de
Publication of EP1237059A1 publication Critical patent/EP1237059A1/de
Application granted granted Critical
Publication of EP1237059B1 publication Critical patent/EP1237059B1/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

Definitions

  • the present invention relates to a timepiece comprising in particular a functional unit comprising magnetic masses, an electronic module comprising a support with conductive tracks connected to at least one circuit integrated.
  • the subject of this application concerns a timepiece of which said functional unit is a laterally unshielded microgenerator.
  • non-magnetic material or “non-magnetic” material that is not ferromagnetic, that is not or that very weakly paramagnetic, and which will eventually show diamagnetism low.
  • near the microgenerator is meant the entire region microgenerator device in which the magnetic flux of the masses magnetized has significant value.
  • the Applicant has found the existence of sources of magnetic disturbances at inside the watch movement. Indeed, the interest of such a timepiece increases when its energy consumption decreases, that is to say when by for example, the efficiency of the generator increases. Based on this observation, the Applicant has highlighted that ferromagnetic masses located at proximity of the generator exert on it a parasitic magnetic force, making thus decrease its yield.
  • the present invention therefore aims to improve the type of parts above-mentioned watchmaking making it possible to avoid the drawbacks described above, in particular thanks to a simple and inexpensive manufacturing improvement.
  • the invention relates to a timepiece of the type indicated more filter characterized in that at least the conductive tracks located near said functional unit have non-magnetic properties.
  • said conductive tracks include a layer of a good electrically conductive material deposited on the substrate of the printed circuit and surmounted by a protective layer.
  • This layer of protection is also made of a non-magnetic material, in accordance with the present invention, preferably in a non-magnetic alloy based on nickel.
  • the conduction tracks further include an undercoat intended to improve the adhesion of the layer material that is a good electrical conductor on the substrate of the printed circuit.
  • This underlay is preferably made of a non-magnetic alloy based on nickel.
  • FIG. 1 represents a view of the generator 1 comprising a rotor 2 having two flanges 3, only one of which is shown, arranged on either side of three flat coils 4 forming the stator and offset substantially by 120 degrees one relative to the other relative to the axis of the rotor 2, in the same plane orthogonal to this one.
  • a printed circuit 6 serves in particular as a support for the coils 4, for an integrated circuit 7, for a quartz 8 and for tracks of electrical conduction 9.
  • the power supply of the integrated circuit 7, with low energy consumption, is provided by the electric generator 1 - consisting of the shaft assembly 10 of the rotor 2, flanges 3, magnets 5 and coils 4 - driven via a kinematic link 11 by a barrel device 12.
  • the mechanical energy stored in the barrel 12 therefore entails the rotor 2.
  • the passage of the magnets 5 near the coils 4 generates a voltage induced substantially sinusoidal across these coils.
  • said electrical conduction tracks 9 are typically carried out in two stages.
  • the first step is to file a layer of a very good electrically conductive material, such as an alloy based on copper or gold.
  • the second step is then to deposit a thin layer of protection, on the conduction layer, made of a nickel-based alloy having good resistance to oxidation.
  • This underlay usually made of a nickel-based alloy, improves the adhesion of the conduction layer to the substrate. Note that the underlay based on nickel also serves as a barrier against the diffusion of the metal from the layer of conduction towards the support.
  • the alloy with nickel base usually used to make the protective layer present ferromagnetic properties.
  • the conventional alloy with nickel base can partially absorb the flux under the action of a magnetic field magnetic magnets 5 in rotation, which brakes the generator.
  • the solution to the above problem then consists in using only materials that do not presenting no ferromagnetic properties for the realization of the tracks of electrical conduction, in particular for producing the protective layer.
  • nickel-based alloy and comprising phosphorus, since for certain values of its composition the alloy obtained does not have magnetic properties.
  • all of the tracks 9 can be produced by one or more materials not having magnetic properties, this resulting in a simplification of the manufacturing process of the electronic module 6.
  • the electronic module 6 also supports discrete electronic elements, such as a capacitor 13, that said discrete electronic elements are exclusively made of materials with essentially non-magnetic properties.
  • the invention can be implemented in a room watchmaking whose functional unit is a compass, or in any other type of timepiece using means interacting with a field external magnetic, especially for its detection.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Clocks (AREA)
  • Signal Processing For Digital Recording And Reproducing (AREA)
  • Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)
  • Measuring Magnetic Variables (AREA)
EP01200754A 2001-02-28 2001-02-28 Benutzung von nichtmagnetischen Leiterbahnen in einem elektronischen Modul, der für eine Zeitmessvorrichtung bestimmt ist Expired - Lifetime EP1237059B1 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AT01200754T ATE464591T1 (de) 2001-02-28 2001-02-28 Benutzung von nichtmagnetischen leiterbahnen in einem elektronischen modul, der für eine zeitmessvorrichtung bestimmt ist
EP01200754A EP1237059B1 (de) 2001-02-28 2001-02-28 Benutzung von nichtmagnetischen Leiterbahnen in einem elektronischen Modul, der für eine Zeitmessvorrichtung bestimmt ist
DE60141808T DE60141808D1 (de) 2001-02-28 2001-02-28 Benutzung von nichtmagnetischen Leiterbahnen in einem elektronischen Modul, der für eine Zeitmessvorrichtung bestimmt ist

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP01200754A EP1237059B1 (de) 2001-02-28 2001-02-28 Benutzung von nichtmagnetischen Leiterbahnen in einem elektronischen Modul, der für eine Zeitmessvorrichtung bestimmt ist

Publications (2)

Publication Number Publication Date
EP1237059A1 true EP1237059A1 (de) 2002-09-04
EP1237059B1 EP1237059B1 (de) 2010-04-14

Family

ID=8179954

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01200754A Expired - Lifetime EP1237059B1 (de) 2001-02-28 2001-02-28 Benutzung von nichtmagnetischen Leiterbahnen in einem elektronischen Modul, der für eine Zeitmessvorrichtung bestimmt ist

Country Status (3)

Country Link
EP (1) EP1237059B1 (de)
AT (1) ATE464591T1 (de)
DE (1) DE60141808D1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014154467A1 (fr) * 2013-03-25 2014-10-02 Richemont International Sa Organe régulateur pour montre bracelet et procédé d'assemblage d'un organe régulateur pour montre bracelet

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0425691A1 (de) * 1989-05-01 1991-05-08 Sumitomo Electric Industries, Ltd. Montagerahmen für halbleiteranordnungen
US5569545A (en) * 1993-12-28 1996-10-29 Nippon Denkai Ltd. Copper clad laminate, multilayer printed circuit board and their processing method

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0425691A1 (de) * 1989-05-01 1991-05-08 Sumitomo Electric Industries, Ltd. Montagerahmen für halbleiteranordnungen
US5569545A (en) * 1993-12-28 1996-10-29 Nippon Denkai Ltd. Copper clad laminate, multilayer printed circuit board and their processing method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014154467A1 (fr) * 2013-03-25 2014-10-02 Richemont International Sa Organe régulateur pour montre bracelet et procédé d'assemblage d'un organe régulateur pour montre bracelet

Also Published As

Publication number Publication date
EP1237059B1 (de) 2010-04-14
DE60141808D1 (de) 2010-05-27
ATE464591T1 (de) 2010-04-15

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