• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a timepiece comprising a middle part closed by an ice, and the following elements positioned in the caseband: a dial (CD) a rigid hook plate (PA) extending under the dial (CD) a module comprising an electric motor, said motor module (MD) a printed circuit of which at least a first portion (P1) is interposed between the hook plate (PA) and the motor module (MD) the motor module (MD) means assembly (VS) of the motor module (MD) to the hook plate (PA) through the first portion (P1) of printed circuit.
    公开号:CH714413A2
    申请号:CH01494/17
    申请日:2017-12-08
    公开日:2019-06-14
    发明作者:Balmer Raphaël；Lagorgette Pascal
    申请人:Eta Sa Mft Horlogere Suisse；
    IPC主号:
    专利说明:

    Description
    Field of the Invention [0001] The invention relates to the field of quartz watches and analog display. This type of watch has as regulator member a vibrating quartz oscillator under the effect of the electric power supplied by a battery and which, associated with an electronic circuit, actuates a stepper motor rotating display needles .
    BACKGROUND OF THE INVENTION [0002] Patent application EP 1 760 557 A1, describing a quartz watch and an analogue display, is known. The timepiece comprises a housing including needles, a semiconductor material dial extending below the needles, a printed circuit board disposed under the dial, and a drive device mounted on the underside of the watch. printed circuit board. The drive device comprises a clockwork electric motor and transmission means for obtaining the gear ratio required for the driving of each needle. The printed circuit board is rigid rests on the edges of the housing. In addition, a printed circuit element is etched in the dial, this printed circuit element comprising connection pads electrically connected to conductive tracks of the printed circuit board.
    This device has several disadvantages. A first disadvantage is that the printed circuit board must be rigid, but flexible printed circuits have many advantages over rigid printed circuits: space and weight gain, ease of integration, better resistance to harsh conditions and vibrations . A second drawback is that the dial is electrically connected to the printed circuit board, which complicates the manufacture and assembly of the timepiece. A third drawback is that the number of electronic components that can be mounted on the printed circuit board (for example antennas, sensors, integrated circuits, etc.) is small: they can only be mounted on the board. bottom surface of the printed circuit board. SUMMARY OF THE INVENTION [0004] The object of the present invention is to overcome at least one of the disadvantages mentioned above.
    For this purpose, the invention relates to a timepiece comprising a middle part closed by an ice, and the following elements positioned in the middle part: - a dial - a rigid hung plate extending under the dial - a module comprising an electric motor, said engine module - a printed circuit of which at least a first portion is interposed between the hook plate and the motor module, the motor module - means for assembling the motor module to the plate hooked through the first printed circuit portion.
    In one embodiment, the dial is intended to be positioned under an ice of the timepiece so as to be visible by a user. In another embodiment, this dial is covered with at least one other layer, for example an assembly comprising a solar cell, the assembly being held on the dial by means of a double-sided adhesive. The dial would thus not be, or only partially, visible through the ice. The upper layer, the one visible through the ice, could then carry the indexes.
    According to the invention, the engine module is not directly attached to the dial as in the document of the prior art, the dial does not need to be formed of a type of material. particular, to have a particular structure or to be connected to electrical connection pads.
    According to a non-limiting embodiment, the printed circuit comprises a second portion disposed against the motor module, such that the motor module is interposed between the first portion and the second portion, the printed circuit further comprising a lateral tab connecting the first portion and the second portion.
    Thus, it is possible to mount a large number of electronic components on the printed circuit board, since components can be attached to the first portion and the second portion, on one or the other of their faces. according to what is technically possible.
    According to a non-limiting embodiment, the printed circuit is flexible. Alternatively, the printed circuit is rigid over most of its surface, and comprises at least one flexible portion (forming the tongue) for folding at least one of its parts on the lower part of the motor module to form the second part.
    The use of a flexible printed circuit is possible because the motor module is supported via the rigid hook plate. It is noted that flexible printed circuits have many advantages, already mentioned, compared to their rigid equivalents.
    According to one embodiment, the timepiece comprises a spacer part of which is disposed laterally on either side of the motor module and sandwiched between the first portion and the second portion of the printed circuit.
    Thus, the surfaces of the first portion and the second printed circuit portion may be larger than the upper surface and the lower surface of the motor module, the portions of the printed circuit that are not in contact with the motor module. then resting on the spacer.
    Advantageously, for cost saving reasons, the spacer is made of plastic. Advantageously, the spacer is formed in one piece.
    According to one embodiment, the timepiece comprises an electric battery installed in a housing of another part of the plastic spacer.
    BRIEF DESCRIPTION OF THE DRAWINGS [0016] Other particularities and advantages will become clear from the description which is given hereinafter, by way of indication and in no way limitative, with reference to the appended drawings, in which FIGS. 1 and 2 show different views of a part of a timepiece according to the invention.
    DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS [0017] Referring to FIGS. 1 and 2, a timepiece according to the invention comprises, inter alia: - A CD dial, an upper surface has a peripheral zone having indexes (not shown). The CD dial is intended to be positioned under an ice of the timepiece so as to be visible by a user. In another embodiment, this dial CD could be covered with at least one other layer, for example an assembly comprising a solar cell or a digital display, the assembly being able to be held on the dial by means of a double-sided adhesive. The CD dial would thus not be, or only partially, visible through the ice. The upper layer (that is to say the one on the side of the watch ice, the lower term referring to the contrary to the back side of the case of the watch) could then carry the indexes. - A rigid PA hook plate, located under the CD dial. In the non-limiting embodiment shown, the dimensions of the hooked plate PA are substantially identical to the dimensions of the dial CD, so that these two layers are almost perfectly superimposed. The hung plate is for example metallic. - A module comprising an electric motor, said engine module MD. Said motor is intended, among other things, to rotate the display needles (not shown) of the timepiece around an axis AX. - A printed circuit board Cl (in English "printed circuit board", abbreviated by PCB). In the non-limiting embodiment described, the printed circuit C1 is at least partially flexible and comprises three portions: A first portion P1 interposed between the hook plate PA and the motor module MD. An upper surface of the motor module MD is disposed against the first portion P1, and an upper surface of the first portion P1 is disposed against the hook plate PA. In addition, the motor module MD, the first portion P1 printed circuit board and the hooked plate PA are fixedly assembled. A second portion P2 disposed against the motor module MD, such that the motor module MD is interposed between and held against the first portion P1 and the second portion P2. • A side LG tongue connecting the first portion P1 and the second portion P2. A plurality of electronic components CE fixed on the lower face of the first printed circuit portion P1 C1, and on the upper face and the lower face of the second printed circuit portion P2 Cl. The components CE are, for example, antennas, sensors, integrated circuits, etc. It is noted that using a folded circuit board Cl provides a large area to place the electronic components CE. - An EP spacer, made of one-piece plastic in the non-limiting embodiment described, a first portion EP1 is located laterally on either side of the motor module MD, and sandwiched between the first portion P1 and the second portion P2 of the printed circuit Cl. A second part EP2 of the spacer EP comprises a housing for housing an electric battery or an accumulator. An electronic battery PE (or an accumulator) housed in the housing of the second part EP2 of the spacer EP, and making it possible to supply the electric motor MD and the plurality of electronic components CE.
    It is noted that the axis AX orthogonally crosses the first portion P1 printed circuit Cl, the hooked plate PA, and the dial CD. The display needles of the timepiece are intended to rotate above the CD dial and around the axis AX.
    Furthermore, as mentioned above, the motor module MD, the first portion P1 printed circuit board and the hooked plate PA are assembled via fastening means, which comprise for example VS screws.
    Of course, the present invention is not limited to the example shown but is susceptible to various variations and modifications that will occur to those skilled in the art.
    权利要求:
    Claims (6)
    [1]
    claims
    1. Timepiece comprising a middle part closed by an ice, and the following elements positioned in the caseband: - a dial (CD) - a rigid hooked plate (PA) extending under the dial (CD) - a module comprising an electric motor, said motor module (MD) - a printed circuit (Cl) of which at least a first portion (P1) is interposed between the hook plate (PA) and the motor module (MD), the motor module (MD) - assembly means (VS) of the motor module (MD) to the hook plate (PA) through the first portion (P1) of printed circuit (Cl).
    [2]
    2. Timepiece according to the preceding claim, the printed circuit (Cl) comprising a second portion (P2) disposed against the motor module (MD), such that the motor module (MD) is interposed between the first portion (P1). and the second portion (P2), the printed circuit (C1) further comprising a lateral tongue (LG) connecting the first portion (P1) and the second portion (P2).
    [3]
    3. Timepiece according to one of the preceding claims, the printed circuit (Cl) being flexible.
    [4]
    4. Timepiece according to one of claims 2 or 3, comprising a spacer (EP), a first portion (EP1) is disposed laterally on either side of the motor module (MD) and sandwiched between the first portion (5) and the second portion (P2) of the printed circuit (Cl).
    [5]
    5. Timepiece according to claim 4, the spacer (EP) being plastic.
    [6]
    6. Timepiece according to claim 4 or claim 5, comprising an electric battery (PE) installed in a housing of a second portion (EP2) of the spacer (EP).
    类似技术:
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    同族专利:
    公开号 | 公开日
    CH714413B1|2021-05-31|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    CH01494/17A|CH714413B1|2017-12-08|2017-12-08|Timepiece comprising an electric motor fixed to a fastening plate.|CH01494/17A| CH714413B1|2017-12-08|2017-12-08|Timepiece comprising an electric motor fixed to a fastening plate.|
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