CN207817900U - The anti-harassment doorbell of power saving - Google Patents

Abstract

The utility model discloses a kind of doorbells that power saving is anti-harassment, including doorbell ontology, the doorbell ontology is built-in with sound control circuit, and the sound control circuit includes resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, potentiometer RP1, potentiometer RP2, potentiometer RP3, potentiometer RP4, capacitance C1, capacitance C2, capacitance C3, capacitance C4, capacitance C5, capacitance C6, triode BG1, triode BG2,555 timers, HT2811 integrated circuits, bell button S1, loudspeaker LS1, battery E.The doorbell of the utility model can all enter temporary dormant state after being pressed aloud every time, and during suspend mode, pressing bell button will not make a sound, until dormancy time terminates, the harassing and wrecking brought of disorderly ringing a doorbell are prevented, and compare power saving, can at least be powered 1 year or so with two No. five alkaline batteries.

Description

Power-saving anti-harassment doorbell

Technical Field

The utility model belongs to the technical field of automatic control, a doorbell is related to, concretely relates to harassment's doorbell is prevented to power saving.

Background

The doorbell is generally installed in a city resident home and can give out sound to remind a host of visiting guests. But the daily life is also easily disturbed by the fact that people press the doorbell disorderly, and the normal life of residents is seriously influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a doorbell of harassment is prevented in power saving can prevent the harassment of indiscriminate pressing the doorbell.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a power-saving anti-harassment doorbell comprises a doorbell body, wherein a sound control circuit is arranged in the doorbell body, and the sound control circuit comprises a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R5, a potentiometer RP1, a potentiometer RP2, a potentiometer RP3, a potentiometer RP4, a capacitor C1, a capacitor C2, a capacitor C3, a capacitor C4, a capacitor C5, a capacitor C6, a triode BG1, a triode BG2, a 555 timer, an HT2811 integrated circuit, a doorbell button S1, a loudspeaker LS1 and a battery E; wherein,

a resistor R1 is connected between the positive pole of the battery E and the 2 pin of the 555 timer, a resistor R2 and a potentiometer RP1 are connected in series and then connected between the positive pole of the battery E and the positive pole of a capacitor C2, a resistor R3 and a potentiometer RP2 are connected in series and then connected between the 6 pin of the HT2811 integrated circuit and the 7 pin of the HT2811 integrated circuit, a resistor R4 and a potentiometer RP3 are connected in series and then connected between the 3 pin of the HT2811 integrated circuit and the ground, a resistor R5 and a potentiometer RP4 are connected in series and then connected between the 2 pin of the HT2811 integrated circuit and the ground, a button S1 is connected in parallel and then connected between the 2 pin of the 555 timer and the ground, a positive pole of a capacitor C2 is connected between the 6 pin of the timer and the 7 pin of the 555 timer, a negative pole of the capacitor C2 is connected to the ground, a capacitor C3 is connected between the 3 pin of the 555 timer and the 1 pin of the HT2811 integrated circuit, a capacitor C4 is connected between the pin of the HT2811 integrated circuit and the ground, a doorbell 3928138, the positive pole of the capacitor C6 is connected with the positive pole of the battery E, the negative pole of the capacitor C6 is connected with the negative pole of the battery E, the base electrode of the triode BG1 is connected with the pin 5 of the HT2811 integrated circuit, the collector electrode of the triode BG1 is connected with the base electrode of the triode BG2, the emitter electrode of the triode BG1 is connected with the collector electrode of the triode BG2, the emitter electrode of the triode BG2 is connected with one end of the loudspeaker LS1, the other end of the loudspeaker LS1 is connected with the positive pole of the battery E, the pin 1 of the 555 timer is grounded, the pin 4 and the pin 8 of the 555 timer are connected with the positive pole of the battery E, the pin 4 of the HT2811 integrated circuit is grounded.

Preferably, the triode BG1 is an NPN tube type with the model of ZTX 300.

Preferably, the triode BG2 is a PNP pipe type with model number ZTX 500.

The utility model discloses a doorbell all can get into temporary dormancy state after being pressed to sound at every turn, and during the dormancy, no matter how press the doorbell button, the doorbell can not sound, and up to the end of dormancy time, could press the doorbell once more, people can not be disturbed by indiscriminate doorbell of pressing, and the power saving of comparison, can supply power about a year at least with two number five alkaline batteries.

Drawings

Fig. 1 is a schematic circuit diagram of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1, a power-saving anti-harassment doorbell comprises a doorbell body, wherein a voice control circuit is arranged in the doorbell body, and the voice control circuit comprises a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R5, a potentiometer RP1, a potentiometer RP2, a potentiometer RP3, a potentiometer RP4, a capacitor C1, a capacitor C2, a capacitor C3, a capacitor C4, a capacitor C5, a capacitor C6, a triode BG1, a triode BG2, a 555 timer, an HT2811 integrated circuit, a doorbell button S1, a horn LS1 and a battery E; wherein,

a resistor R1 is connected between the positive pole of the battery E and the 2 pin of the 555 timer, a resistor R2 and a potentiometer RP1 are connected in series and then connected between the positive pole of the battery E and the positive pole of a capacitor C2, a resistor R3 and a potentiometer RP2 are connected in series and then connected between the 6 pin of the HT2811 integrated circuit and the 7 pin of the HT2811 integrated circuit, a resistor R4 and a potentiometer RP3 are connected in series and then connected between the 3 pin of the HT2811 integrated circuit and the ground, a resistor R5 and a potentiometer RP4 are connected in series and then connected between the 2 pin of the HT2811 integrated circuit and the ground, a button S1 is connected in parallel and then connected between the 2 pin of the 555 timer and the ground, a positive pole of a capacitor C2 is connected between the 6 pin of the timer and the 7 pin of the 555 timer, a negative pole of the capacitor C2 is connected to the ground, a capacitor C3 is connected between the 3 pin of the 555 timer and the 1 pin of the HT2811 integrated circuit, a capacitor C4 is connected between the pin of the HT2811 integrated circuit and the ground, a doorbell 3928138, the positive pole of the capacitor C6 is connected with the positive pole of the battery E, the negative pole of the capacitor C6 is connected with the negative pole of the battery E, the base electrode of the triode BG1 is connected with the pin 5 of the HT2811 integrated circuit, the collector electrode of the triode BG1 is connected with the base electrode of the triode BG2, the emitter electrode of the triode BG1 is connected with the collector electrode of the triode BG2, the emitter electrode of the triode BG2 is connected with one end of the loudspeaker LS1, the other end of the loudspeaker LS1 is connected with the positive pole of the battery E, the pin 1 of the 555 timer is grounded, the pin 4 and the pin 8 of the 555 timer are connected with the positive pole of the battery E, the pin 4 of the HT2811 integrated circuit is grounded.

Preferably, the triode BG1 is an NPN tube type with the model of ZTX 300.

Preferably, the triode BG2 is a PNP pipe type with model number ZTX 500.

The working principle of the utility model is as follows: the 555 timer, a resistor R1 and a capacitor C1 form a monostable trigger, when a doorbell button S1 is pressed, a low-level trigger signal is added to a pin 2 of the 555 timer, a pin 3 outputs a high-level pulse signal, and the duration of the pulse signal is determined by a time constant formed by the resistor R2, a potentiometer RP1 and the capacitor C2. The pulse is applied to pin 1 of the HT2811 integrated circuit through the capacitor C3, and when the pin 1 potential of the HT2811 integrated circuit becomes high instantaneously, pin 5 of the HT2811 integrated circuit outputs two audio signals with very short "ding-dong" sound. The signal is amplified by a high-gain amplifier consisting of a triode BG1 and a triode BG2, and then drives a loudspeaker LS1 to make a ding-dong sound. Due to the dc blocking effect of the capacitor C3, during the monostable period, the HT2811 integrated circuit will not trigger any more, and no matter how the doorbell button S1 is pressed, the 3 pin of the 555 timer continuously outputs high level, i.e. the doorbell is in the sleep period. After the monostable time is over, the 3 pin of the 555 timer is changed into low level, after the capacitor C3 and the 3 pin of the 555 timer and the 1 pin of the HT2811 integrated circuit discharge, the sleep period of the doorbell is over, and the circuit is ready to respond to the next button trigger.

Claims (3)

1. The utility model provides a doorbell of harassment is prevented in power saving, includes the doorbell body, doorbell body embeds there is the acoustic control circuit, its characterized in that: the voice control circuit comprises a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R5, a potentiometer RP1, a potentiometer RP2, a potentiometer RP3, a potentiometer RP4, a capacitor C1, a capacitor C2, a capacitor C3, a capacitor C4, a capacitor C5, a capacitor C6, a triode BG1, a triode BG2, a 555 timer, an HT2811 integrated circuit, a doorbell button S1, a horn LS1 and a battery E; wherein,

a resistor R1 is connected between the positive pole of the battery E and the 2 pin of the 555 timer, a resistor R2 and a potentiometer RP1 are connected in series and then connected between the positive pole of the battery E and the positive pole of a capacitor C2, a resistor R3 and a potentiometer RP2 are connected in series and then connected between the 6 pin of the HT2811 integrated circuit and the 7 pin of the HT2811 integrated circuit, a resistor R4 and a potentiometer RP3 are connected in series and then connected between the 3 pin of the HT2811 integrated circuit and the ground, a resistor R5 and a potentiometer RP4 are connected in series and then connected between the 2 pin of the HT2811 integrated circuit and the ground, a button S1 is connected in parallel and then connected between the 2 pin of the 555 timer and the ground, a positive pole of a capacitor C2 is connected between the 6 pin of the timer and the 7 pin of the 555 timer, a negative pole of the capacitor C2 is connected to the ground, a capacitor C3 is connected between the 3 pin of the 555 timer and the 1 pin of the HT2811 integrated circuit, a capacitor C4 is connected between the pin of the HT2811 integrated circuit and the ground, a doorbell 3928138, the positive pole of the capacitor C6 is connected with the positive pole of the battery E, the negative pole of the capacitor C6 is connected with the negative pole of the battery E, the base electrode of the triode BG1 is connected with the pin 5 of the HT2811 integrated circuit, the collector electrode of the triode BG1 is connected with the base electrode of the triode BG2, the emitter electrode of the triode BG1 is connected with the collector electrode of the triode BG2, the emitter electrode of the triode BG2 is connected with one end of the loudspeaker LS1, the other end of the loudspeaker LS1 is connected with the positive pole of the battery E, the pin 1 of the 555 timer is grounded, the pin 4 and the pin 8 of the 555 timer are connected with the positive pole of the battery E, the pin 4 of the HT2811 integrated circuit is grounded.

2. The power-saving anti-harassment doorbell of claim 1, characterized in that: the triode BG1 is an NPN tube type, and the model is ZTX 300.

3. A power saving anti-harassment doorbell according to claim 1 or 2, characterized in that: the triode BG2 is a PNP pipe type with the model of ZTX 500.