CN101634829A

CN101634829A - Timer

Info

Publication number: CN101634829A
Application number: CN200810132147A
Authority: CN
Inventors: 卜鑫友
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-07-21
Filing date: 2008-07-21
Publication date: 2010-01-27

Abstract

The invention relates to a timer, in particular to the structure improvement of the timer. The invention provides a timer capable of shortening the time interval of time hands returning to the zero position and can improve the oscillation starting property while keeping low power consumption. The timer is characterized by comprising a handle, a starting button, a reset button, and a control device, wherein a starting button is used for starting and stopping the measurement of the time interval; a reset button is used for returning the timer hands to the zero position; and a control device is used for converting a function of resetting the starting button and the reset button for resetting the timer hands into a plurality of reset modes having different functions of resetting the starting button and the reset button.

Description

A kind of timer

Technical field:

The present invention relates to the improvement of timer structure.

Background technology:

Timer has the timer pointer that is used to indicate the hour hands of current time and is used to indicate the measured time interval mostly traditionally.This timer is provided with reset function, is used for turning back to zero position finishing the timer pointer to be reset to after measure waiting.But, exist a problem: root when the timer pointer stops in the process that the timer pointer is resetted the position and the timer pointer got back to the sense of rotation of zero position, prolonged the time interval that the timer pointer is turned back to zero position especially.

Also have a kind of output signal according to oscillatory circuit to carry out the electronic timer of timing operation demonstration time in the market, oscillatory circuit is operated so that realize the low-power consumption structure by the predetermined constant voltage that constant voltage circuit provided that is used to carry out the sampling operation.Yet this low-power consumption structure can reduce the starting of oscillation characteristic of oscillatory circuit, and can cause the problem of further reduction starting of oscillation characteristic.

Summary of the invention:

The present invention is exactly at the problems referred to above, provides a kind of and shortens the time interval that the timer pointer turns back to zero position, and can improve the timer of starting of oscillation characteristic when keeping low-power consumption.

For achieving the above object, the present invention adopts following technical scheme, the present invention includes: button, start button are used for beginning and stop measuring intervals of TIME; And reset button, be used for the timer pointer is turned back to zero position; And control device, its be used for according to operation during button reset button whether operates, the start button and being used to of will resetting is converted to the function of the reset button that the timer pointer resets to have and is used to reset a plurality of reset modes of difference in functionality of start button and reset button.

Described control device comprises oscillation device, and this oscillation device has be used to prevent the capacitor that leaks within the oscillatory circuit loop of the signal that is used to export preset frequency; Frequency divider, be used for by the output signal of oscillation device carry out frequency division export constituted timing operation reference the time output time meter signal come output drive signal; Display device is used for showing the current time by the driving of drive unit; The driving power feedway is used for providing driving power to oscillation device at least; And control device, be used for the driving voltage that the driving power feedway is exported is controlled, wherein oscillation device comprises switchgear, and control device is controlled so that capacitor short-circuit and predetermined time cycle are inserted into capacitor within the oscillatory circuit loop after passing switchgear.

Beneficial effect of the present invention:

The present invention can shorten the time interval that the timer pointer turns back to zero position, and can improve the timer of starting of oscillation characteristic when keeping low-power consumption.

Description of drawings:

Fig. 1 is a structural representation of the present invention;

Fig. 2 is a block scheme of the present invention;

Fig. 3 is a partial circuit schematic diagram of the present invention.

Embodiment:

The present invention includes: button 1, start button 2 are used for beginning and stop measuring intervals of TIME; With reset button 3, be used for the timer pointer is turned back to zero position; And control device, its be used for according to operation during button 1 reset button 3 whether operates, the start button and being used to of will resetting is converted to the function of the reset button 3 that the timer pointer resets to have and is used to reset a plurality of reset modes of difference in functionality of start button and reset button 3.

Described control device comprises oscillation device, and this oscillation device has be used to prevent the capacitor that leaks within oscillatory circuit 4 loops of the signal that is used to export preset frequency; Frequency dividing circuit 5, be used for by the output signal of oscillation device carry out frequency division export constituted timing operation reference the time output time meter signal come output drive signal; Driving circuit 6 is used for providing driving power to oscillation device at least; And control device, be used for the driving voltage that the driving power feedway is exported is controlled, wherein oscillation device comprises switchgear, and 7 pairs of switchgears of control circuit are controlled so that capacitor short-circuit and predetermined time cycle are inserted into capacitor within oscillatory circuit 4 loops after passing.

Oscillatory circuit 4 comprises vibrational stabilization circuit 8, even this vibrational stabilization circuit 8 also can continue oscillating operation when having caused leakage in the oscillatory circuit 4.Vibrational stabilization circuit 8 comprise be used to prevent the capacitor that leaks and be positioned at described subsequently oscillatory circuit 4 loops within capacitor opened/closed switch in parallel.

Oscillatory circuit 4 comprises crystal oscillator 9, capacitor 10,11, phase inverter 12, resistance 13 and vibrational stabilization circuit 8.Crystal oscillator 9, capacitor 10,11, phase inverter 12 and resistance 13 have constituted oscillatory circuit 4 loops.

Claims

1, a kind of timer is characterized in that, comprising: button (1), start button (2) are used for beginning and stop measuring intervals of TIME; And reset button (3), be used for the timer pointer is turned back to zero position; And control device, its be used for according to the operation button when (1) reset button (3) whether operates, will reset start button and the function of the reset button (3) that is used to the timer pointer is resetted is converted to a plurality of reset modes of the difference in functionality be used to reset start button and reset button (3).

2, a kind of timer according to claim 1 is characterized in that, described control device comprises oscillation device, and this oscillation device has be used to prevent the capacitor that leaks within oscillatory circuit (4) loop of the signal that is used to export preset frequency; Frequency dividing circuit (5), be used for by the output signal of oscillation device carry out frequency division export constituted timing operation reference the time output time meter signal come output drive signal; Driving circuit (6) is used for providing driving power to oscillation device; And control device, be used for the driving voltage that the driving power feedway is exported is controlled, wherein oscillation device comprises switchgear, and control circuit (7) is controlled so that capacitor short-circuit and predetermined time cycle are inserted into capacitor within oscillatory circuit (4) loop after passing switchgear.