EP1237059A1 - Utilisation de pistes amagnétiques pour un module électronique destiné à une pièce d'horlogerie - Google Patents
Utilisation de pistes amagnétiques pour un module électronique destiné à une pièce d'horlogerie Download PDFInfo
- 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
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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)
- Measuring Magnetic Variables (AREA)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Indexing, Searching, Synchronizing, And The Amount Of Synchronization Travel Of Record Carriers (AREA)
Abstract
Description
Claims (10)
- Pièce d'horlogerie comportant notamment une unité fonctionnelle (1) comprenant des masses aimantées (5), un module électronique (6) comprenant un support avec des pistes conductrices (9) reliées à au moins un circuit intégré (7), caractérisée en ce qu'au moins les pistes conductrices (9) situées à proximité de ladite unité fonctionnelle (1) présentent des propriétés essentiellement non magnétiques.
- Pièce d'horlogerie selon la revendication 1, caractérisée en ce que lesdites pistes conductrices (9) comprennent une couche de protection formée d'un matériau non magnétique.
- Pièce d'horlogerie selon la revendication 2, caractérisée en ce que ladite couche de protection est réalisée en un alliage à base de nickel.
- Pièce d'horlogerie selon l'une des revendications précédentes, caractérisée en ce que ledit module électronique (6) comprend en outre au moins un élément électronique discret (13), notamment un condensateur, et en ce que ledit élément électronique discret est constitué exclusivement de matériaux présentant des propriétés essentiellement non magnétiques.
- Pièce d'horlogerie selon l'une des revendications précédentes, caractérisée en ce que lesdites pistes conductrices (9) comprennent une sous-couche d'adhérence formée d'un matériau non magnétique.
- Pièce d'horlogerie selon la revendication 5, caractérisée en ce que ladite sous-couche d'adhérence est réalisée en un alliage à base de nickel.
- Pièce d'horlogerie selon l'une des revendications précédentes, caractérisée en ce que ladite unité fonctionnelle (1) est une microgénératrice.
- Pièce d'horlogerie selon la revendication 7, caractérisée en ce que ladite microgénératrice (1) comporte un rotor (2) comprenant deux flasques (3) ayant chacune sensiblement la forme d'un disque et portant chacune, sur sa face en regard de l'autre flasque, un nombre pair de masses aimantées (5), ledit module électronique (6) comportant au moins une bobine statorique (4) fixée audit support et partiellement insérée entre les deux flasques (3), les pistes conductrices (9) dudit support reliant ladite au moins une bobine (4) audit circuit intégré (7) présentant des propriétés essentiellement non magnétiques.
- Pièce d'horlogerie selon l'une des revendications 1 à 6, caractérisée en ce que ladite unité fonctionnelle permet de détecter la présence d'un champ magnétique externe.
- Pièce d'horlogerie selon la revendication 9, caractérisée en ce que ladite unité fonctionnelle (1) assure la fonction d'une boussole.
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 (fr) | 2001-02-28 | 2001-02-28 | Utilisation de pistes amagnétiques pour un module électronique destiné à une pièce d'horlogerie |
| 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 (fr) | 2001-02-28 | 2001-02-28 | Utilisation de pistes amagnétiques pour un module électronique destiné à une pièce d'horlogerie |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP1237059A1 true EP1237059A1 (fr) | 2002-09-04 |
| EP1237059B1 EP1237059B1 (fr) | 2010-04-14 |
Family
ID=8179954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP01200754A Expired - Lifetime EP1237059B1 (fr) | 2001-02-28 | 2001-02-28 | Utilisation de pistes amagnétiques pour un module électronique destiné à une pièce d'horlogerie |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1237059B1 (fr) |
| AT (1) | ATE464591T1 (fr) |
| DE (1) | DE60141808D1 (fr) |
Cited By (1)
| 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)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0425691A1 (fr) * | 1989-05-01 | 1991-05-08 | Sumitomo Electric Industries, Ltd. | Cadre de montage pour dispositifs a semi-conducteur |
| US5569545A (en) * | 1993-12-28 | 1996-10-29 | Nippon Denkai Ltd. | Copper clad laminate, multilayer printed circuit board and their processing method |
-
2001
- 2001-02-28 DE DE60141808T patent/DE60141808D1/de not_active Expired - Lifetime
- 2001-02-28 EP EP01200754A patent/EP1237059B1/fr not_active Expired - Lifetime
- 2001-02-28 AT AT01200754T patent/ATE464591T1/de not_active IP Right Cessation
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0425691A1 (fr) * | 1989-05-01 | 1991-05-08 | Sumitomo Electric Industries, Ltd. | Cadre de montage pour dispositifs a semi-conducteur |
| 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)
| 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 |
|---|---|
| ATE464591T1 (de) | 2010-04-15 |
| EP1237059B1 (fr) | 2010-04-14 |
| DE60141808D1 (de) | 2010-05-27 |
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