Timepiece comprising an electric motor fixed to a mounting plate

Patent metadata

Field	Value
Publication number	US-11119447-B2
Application number	US-201816162928-A
Country	US
Kind code	B2
Filing date	Oct 17, 2018
Priority date	Dec 8, 2017
Publication date	Sep 14, 2021
Grant date	Sep 14, 2021

Abstract

A timepiece including a case middle closed by a glass and the following elements positioned in the case middle: a dial, a rigid mounting plate extending under the dial, a module including an electric motor, referred to as the motor module, a printed circuit board, of which at least a first portion is interposed between the mounting plate and the motor module, means for the assembly of the motor module on the mounting plate through the first portion of the printed circuit board.

First claim

The invention claimed is:

1. A timepiece, comprising:
a case middle closed by a glass, the case middle including:
a dial,
a rigid mounting plate extending under the dial,
a motor module comprising an electric motor,
a printed circuit board, wherein at least a first portion of the printed circuit board is interposed between the mounting plate and the motor module, and
means for securing the first portion of the printed circuit board and the motor module onto the mounting plate through a hole in the first portion of the printed circuit board.

2. The timepiece according to claim 1 , wherein the printed circuit board comprises a second portion disposed against the motor module, such that the motor module is interposed between the first portion and the second portion of the printed circuit board, the printed circuit board further comprising a lateral tab connecting the first portion and the second portion.

3. The timepiece according to claim 2 , further comprising a spacer, wherein a first part of the spacer is disposed laterally to either side of the motor module and is sandwiched between the first portion and the second portion of the printed circuit board.

4. The timepiece according to claim 3 , wherein the spacer is made of plastic.

5. The timepiece according to claim 3 , further comprising an electric battery installed in a housing of a second part of the spacer.

6. The timepiece according to claim 1 , wherein the printed circuit board is flexible.

7. The timepiece of claim 1 , wherein the means for securing is a screw that passes through the mounting plate and passes through the first portion of the printed circuit board.

8. The timepiece of claim 1 , wherein the means for securing directly contacts the first portion of the printed circuit board, the mourning plate, and the motor module.

Assignees

• Eta Sa Mft Horlogere Suisse

Inventors

• Balmer Raphael
• Lagorgette Pascal

Classifications

• G04C3/14 Primary

  incorporating a stepping motor (G04C3/02 - G04C3/12 take precedence {; generating commutating pulses in primary clocks G04C13/0463}) · CPC title

• G04C10/00

  Arrangements of electric power supplies in time-pieces {(Mounting, assembling of components G04C3/008)} · CPC title

• G04C10/02

  the power supply being a radioactive {or photovoltaic} source · CPC title

• G04C3/008 Primary

  Mounting, assembling of components · CPC title