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Movements and Watches

A technology of movement and supporting components, applied to clocks, electric mechanical clocks, instruments, etc., to achieve the effect of preventing short circuit, simple structure, and suppressing the deterioration of durability

Active Publication Date: 2020-03-10
SEIKO INSTR INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In addition, generally speaking, IC chips and circuit boards are easily affected by noise such as static electricity and electromagnetic intrusion from the outside of electronic clocks.

Method used

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  • Movements and Watches
  • Movements and Watches
  • Movements and Watches

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0037] (clock)

[0038] Embodiments of the present invention will be described below. In this embodiment, an analog quartz timepiece will be described as an example.

[0039] Generally speaking, the mechanical body including the driving part of a timepiece is called a "movement". The finished state of attaching the dial and hands to the movement and placing it in the watch case is called the "complete" of the watch. Among the two sides of the bottom plate constituting the watch base plate, the side with glass, that is, the side with the dial of the watch case is referred to as the "back side" or "glass side" or "dial side" of the movement. Among the two sides of the bottom plate, the side with the back cover of the watch case, that is, the side opposite to the dial is called the "surface side" or "back cover side" of the movement.

[0040] figure 1 It is an external view showing the timepiece 1 according to the embodiment of the present invention.

[0041] Such as figure...

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PUM

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Abstract

The invention provides a movement and a timepiece capable of improving noise resistance in a case where the noise is not large. The movement (10) includes a second support (110) formed of a conductive material and supporting a second wheel (44), a fourth wheel (42), a time wheel (45), a stepping motor (35) (32) for controlling the operation of the stepping motor (35), and a battery (21) for supplying power to the stepping motor (35), and electrically driving the stepping motor (35) (22) of the stator (31), the second support (110) and the crystal unit (22) of the stepping motor (35) formed on the material are arranged on the side of the electronic component (26) and electrically connected to the positive electrode (21p) of the battery .

Description

technical field [0001] The invention relates to movements and timepieces. Background technique [0002] An analog electronic timepiece includes a stepping motor as a hand driving source, an IC chip for controlling a driving signal of the stepping motor, and a circuit board on which the IC chip is mounted (for example, refer to Patent Document 1). [0003] The circuit board has a reference signal generating circuit. The reference signal generation circuit includes an oscillation circuit for generating an oscillation signal (for example, 32kHz) and a frequency dividing circuit. The frequency division circuit divides the frequency of the oscillating signal, for example, generates a 1Hz reference signal and a 4Hz (low rate) or 1kHz (high rate) frequency division signal. The reference signal is used to count (count) the count value indicating the time (current time) at that point in time. The frequency-divided signal is used to sample the received signal. [0004] In addition...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G04C3/14
CPCG04C3/14
Inventor 河田正幸佐藤贤藤原俊行小棚木进
Owner SEIKO INSTR INC