CN2131143Y

CN2131143Y - Multipurpose doorbell structure device

Info

Publication number: CN2131143Y
Application number: CN 92230818
Authority: CN
Inventors: 李肇云
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-08-17
Filing date: 1992-08-17
Publication date: 1993-04-28
Anticipated expiration: 2002-08-17

Abstract

The utility model provides a multifunctional doorbell structure device, particularly a device which can enable a direct current power supply to input a signal from the PRT foot of an IC by pressing the switch of a doorbell. The MO foot of the IC outputs the signal which not only triggers a transistor for conducting to enable a trumpet to generate sound and but also is amplified by a tandem amplifying circuit and charges the capacitor of a timing circuit. A three-end and double-direction switch element of controlled silicon is conducted and a lamp is lightened. Meanwhile, a camera connected with a socket also simultaneously identifies the visiting guest. Besides the synchronous action of the lamp and the camera, the action time of the lamp and the camera is about one minute by the control of the timing circuit. Thus the multifunctional doorbell structure device is obtained.

Description

Multipurpose doorbell structure device

The relevant a kind of multi-usage doorbell constructional device of the utility model system refers to a kind ofly can make loudspeaker produce the sound by the pushing of doorbell especially, and lamp and video camera do about one minute illumination synchronously, and identification visitor identity.

General doorbell on the market, all push merely, make people within doors know the arrival that the visitor is arranged, the shortcoming of this kind mode is that within doors people can't know visitor's identity, tends to allow stranger or salesperson etc. enter having no to open door under the situation of defence, cause some unnecessary puzzlements, especially and very person, some unprincipled fellows also can swarm into through this kind mode, cause the harm of people's life property and safety within doors, moreover because doorbell does not in the past all have the illumination function, practicality is also not good.

Given this, the purpose of this utility model provides a kind of doorbell constructional device that the identification visitor has functions such as illumination concurrently that has, this device can ring doorbell by the control of integrated circuit (IC), and lamp is bright, video camera is taken the visitor, with identification visitor identity, and the time of time set control lamp, video camera action, the mat said method forms a kind ofly to have antitheft, identification, illumination and is fit to purposes doorbell constructional device more than the various times uses.

Now the conjunction with figs. assistant is to describe doorbell constructional device of the present utility model in detail:

Fig. 1 is the configuration stereo appearance figure of the utility model;

Fig. 2 is the circuit diagram of the utility model;

Fig. 3 is the circuit process flow diagram of the utility model;

Fig. 4 is the stereo appearance figure of the utility model;

Fig. 5 is the enforcement illustration of the utility model.

Purposes doorbell constructional device more than the utility model consists predominantly of a circuit arrangement 1; Wherein, this circuit arrangement 1 is a mat transformer 11 through commutated current 12 with AC power through step-down, rectification and export a direct current power supply, and this direct supply one is terminated at the VDD pin of IC13, and the other end then mat one doorbell switch (SW) 14 is connected on the PRT pin of IC13.When doorbell switch (SW) 14 pressurizeds make direct supply when the PRT of IC pin is conducted, IC is about to a signal and is exported by the MO pin, the signal of output directly triggers transistor Tr 2 conductings on the one hand, and make loudspeaker 15 that the sound is exported by doorbell 3, signal is then amplified via transistor Tr 3 and tandem amplifying circuit 16 on the other hand, and to timing circuit 17 chargings, to trigger TRIAC 18 conductings, and make lamp 19 bright, the bright while of lamp then is plugged in the identification that video camera 2 on the socket 10 is also done the visitor synchronously, on the mat to form the utility model of a doorbell constructional device.

17 pairs of lamps 19 of the timing circuit of the utility model and socket 10 external video cameras 2 are done about one minute timing control, when lamp 10 and video camera 2 do illuminations and visitor's identification is promptly extinguished after about one minute automatically.

The socket 10 of the utility model is except that connecting video camera 2, and its connection that also can make other external units is on demand used.

The circuit design Nover practical of the utility model belongs to the novel creation of a tool patentability in fact, so apply for it in accordance with the law.

Claims

1, a kind of multi-usage doorbell constructional device is characterized in that consisting predominantly of a circuit arrangement; Wherein, This circuit arrangement is the mat transformer through rectification circuit with AC power through step-down, rectification and export a direct current power supply, and this direct supply one is terminated at the VDD pin of IC, and the other end then mat one doorbell switch (SW) is connected on the PRT pin of IC.When doorbell switch (SW) pressurized makes direct supply through the conducting of the PRT of IC pin, IC is about to a signal and is exported by the MO pin, the signal of output directly triggers transistor Tr 2 conductings on the one hand, and make loudspeaker that the sound is exported by doorbell, signal is then amplified via transistor Tr 3 and tandem amplifying circuit on the other hand, and timing circuit charged, to trigger the TRIAC conducting, and making lamp bright, the bright while of lamp then is plugged in the identification that video camera on the socket is also done the visitor synchronously.