CN2179608Y

CN2179608Y - Automatic intercommunication door bell

Info

Publication number: CN2179608Y
Application number: CN 93241875
Authority: CN
Inventors: 杜有为; 杜严
Original assignee: Individual
Current assignee: Du Youwei
Priority date: 1993-10-16
Filing date: 1993-10-16
Publication date: 1994-10-12
Anticipated expiration: 2003-10-16

Abstract

The utility model discloses an automatic talk-back doorbell capable of leaving messages, which is mainly composed of a duplex wired talk-back circuit, a rectifier filter, a push-button switch, a delay relay, a leaving message switch, a voice circuit and a controlled recorder power socket. The automatic talk-back doorbell capable of leaving messages has the advantages of common talk-back doorbells and also has the unique characteristic that people can talk back with outdoor visitors in any indoor position. The utility model can automatically record the messages left by the visitors when owners are not at home.

Description

Automatic intercommunication door bell

The utility model belongs to household electrical appliance, and specifically, but it relates to a kind of structure of automatic intercommunication message leaving door bell.

The electronic door bell of introducing on that sell in the market and the interrelated data is varied, wherein the entryphone that volume is bigger mostly is single worker's intercommunication, and duplexing intercommunication all is telephone-type, these two kinds of entryphones all need just can reach the purpose of conversation by hand, and do not possess automatic message-leaving function.

But task of the present utility model provides a kind of technical scheme of automatic intercommunication message leaving door bell.It can realize the auto-duplex intercommunication, and can leave a message.

In order to solve above-mentioned task, scheme of the present utility model is: the utility model is that 92222312,2 duplex wired talkback circuit 4, rectifier filer 2, pushbutton switch 1, timing relay 3, voice mail switch 5, sound circuit 6 and controlled recorder power socket 7 constitute by the patent No..Above-mentioned pushbutton switch, the one group is often opened the input end that node N1 is series at rectifier filer, and another group is often opened ring loop C, the C ' of part outdoors that node N2 connects duplex wired talkback circuit, and its 3rd group often to open node N3 in parallel with node N1.Above-mentioned timing relay, its two controlled end connects two output terminals of rectification filter respectively, and node N3 is often opened in its control end J1 control, the conducting of connection and time-delay node N3.Above-mentioned voice mail switch is serially connected with an output terminal of rectifier filer.Above-mentioned sound circuit, its two power inputs, one end connects an output terminal of rectifier filer by voice mail switch, another output terminal of another termination rectifier filer, the inner audio input end of door of the duplex wired talkback circuit of its output termination.Above-mentioned controlled recorder power socket, the controlled end of the power supply switching of two control sound-track engraving apparatus 8 and two power input V of sound circuit ₊, V _-Parallel connection is to control a job that is in the sound-track engraving apparatus of recording state.

Principle of work of the present utility model is: when button was pressed, node N1 connected AC power, and node N3 is by the timing relay self-locking simultaneously, and its another node N2 is responsible for connecting ring.Between the self-locking time delay, duplex wired talkback circuit work realizes indoor and outdoor converse automatically (function of duplex wired talkback circuit itself); Self-locking finishes, dump.When owner goes out, voice mail switch can close, and the sound of pressing sound-track engraving apparatus is recorded key, when the people is visiting, press the button 1, sound circuit work of the present utility model, send information, controlled recorder power socket is connected recorder power, the message that duplex wired talkback circuit transmitted under sound-track engraving apparatus was recorded automatically.

Owing to adopted technique scheme, major advantage of the present utility model is: can be in indoor any position and the free intercommunication of outdoor visitor; When owner not the time, can write down visitor's message automatically.

The drawing of the utility model accompanying drawing is described as follows:

Fig. 1 is a structural drawing of the present utility model;

Fig. 2 is the circuit diagram of timing relay of the present utility model;

Fig. 3 is the circuit diagram of sound circuit of the present utility model;

Fig. 4 is the circuit diagram of controlled recorder power socket of the present utility model.

The utility model is described in further detail below in conjunction with drawings and Examples.

In an embodiment, the circuit of timing relay as shown in Figure 2, IC selects time-base integrated circuit 555 for use, its pin one is as the negative controlled end of timing relay, its pin 8 is as just controlled end.Pin two is taken over pin 1 by diode connected in parallel D1 and resistance R 1, takes over pin 8 by capacitor C 1, and with pin 6 short circuits.Pin 3 is taken over pin 8 by relay J 1 in parallel and diode D2.Pin 4 is taken over pin 8.Pin 5 is taken over pin 1 by capacitor C 2.

In an embodiment, sound circuit has a language integrated package Y, wherein is solidified with language such as " you are good, and owner stays out, busy please the message ".The positive input terminal series resistor R2 of the power supply of integrated package Y is as a power input V of sound circuit ₊, the power-input end of integrated package Y is as another power input V of sound circuit _-, a capacitor C 4 is connected between the positive input terminal and negative input end of integrated package power supply.Behind the output terminal resistance in series R3 and capacitor C 3 of integrated package,, connect the audio input end of duplex wired talkback circuit indoor section as the output terminal P of sound circuit.

In an embodiment, controlled recorder power socket is made of ac power plug W, AC Power supply socket Z and K switch series connection.K switch is connected with the control end of a relay J 2, and two controlled ends of relay J 2 meet V respectively as the controlled end of controlled recorder power socket ₊, V _-

Claims

But 1, a kind of automatic intercommunication message leaving door bell, it has duplex wired talkback circuit and rectifier filer, two input termination AC power of rectifier filer, two power inputs of the duplex wired talkback circuit of two output terminations; It is characterized in that: a pushbutton switch is arranged, and the one group is often opened node N ₁Be series at the input end of rectifier filer, another group is often opened node N ₂Meet ring loop C, the C ' of part outdoors of duplex wired talkback circuit, often open node N for its 3rd group ₃With node N ₁In parallel; A timing relay, its two controlled end connects two output terminals of rectifier filer respectively, and node N is often opened in its control end control ₃, connect and time-delay node N ₃Conducting; A voice mail switch is serially connected with an output terminal of rectifier filer; A sound circuit, its two power inputs, one end connects an output terminal of rectifier filer by voice mail switch, another output terminal of another termination rectifier filer, the audio input end of part in the door of the duplex wired talkback circuit of its output termination; A controlled recorder power socket, the controlled end of two control recorder power break-make is in parallel with two power inputs of sound circuit.
2, but according to the described automatic intercommunication message leaving door bell of claim 1, it is characterized in that: the structure of above-mentioned timing relay is: a time-base integrated circuit IC, its pin one are as the negative controlled end of this timing relay, and its pin 8 is as just controlled end; Pin two is taken over pin 1 by diode connected in parallel D1 and resistance R 1, by capacitor C 1 take over pin 8 and with pin 6 short circuits; Pin 3 is taken over pin 8 by relay J 1 in parallel and diode D2; Pin 4 is taken over pin 8; Pin 5 is taken over pin 1 by capacitor C 2.
But 3, according to claim 1 or 2 described automatic intercommunication message leaving door bells, it is characterized in that: sound circuit has a language integrated package, the positive input terminal series resistor R2 of its power supply is as a power input of sound circuit, the negative input end of its power supply is as another power input of sound circuit, and a capacitor C 4 is connected between the positive input terminal and negative input end of integrated package power supply; The output terminal resistance in series R3 of language integrated package and capacitor C 3 backs are as the output terminal of sound circuit.
But 4, according to the described automatic intercommunication message leaving door bell of claim 3, it is characterized in that: controlled recorder power socket is by ac power plug, AC Power supply socket and K switch series connection constitute, K switch is connected with the control end of relay J 2, and two controlled ends of relay J 2 are as the controlled end of controlled recorder power socket.