CN2215471Y

CN2215471Y - Electronic mail box

Info

Publication number: CN2215471Y
Application number: CN 94220692
Authority: CN
Inventors: 夏定远
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-09-07
Filing date: 1994-09-07
Publication date: 1995-12-20
Anticipated expiration: 2004-09-07

Abstract

The utility model relates to an electronic mail box. The electronic mail box comprises a box body, a signal sending part and a signal receiving part. The signal sending part is installed in the box body, and the signal receiving part is installed in a room. When letters are put into the electronic mail box, a switch is turned on to make a signal lamp in the room shine and a buzzer sound, and then householders know that the electronic mail box is filled with letters. The buzzer is controlled by controllable silicon to sound. If a telegram or an emergent paging comes, a paging button of the electronic mail box can be pressed to make the buzzer sound to notice the householders. The button of the signal receiving part is installed outside doors, so the button can also be used as a door bell. The electronic mail box is especially suitable for high layer house buildings.

Description

Electronic mail box

The utility model belongs to a kind of signaling device, as input or busy need enabling during the call householder such as mails.

Because the dwelling house high buildingization, the mail carrier can not give the householder by the family with mails such as letter, newspapers, be arranged in the mailbox of ground floor but drop into, but the householder does not know whether letter is arranged today, or go every day to see once, or mailbox has letter not know and the delay time.Meet urgent documents or dispatchs such as telegram, the mail carrier often calls out at ground floor, if upstairs resident family does not hear and must run toward high building, wastes time and energy.For the dormitory building that is provided with the reception room, the reception room personnel will also be like this with resident family's contact.

The purpose of this utility model provides a kind of such electronic mail, and when input mails such as letter, newspaper click switch, just can allow the householder know has letter, and perhaps busy call also can click button and notify from a phone call the householder, and can make doorbell and use.

The utility model is made up of casing (1), signal transmission unit branch (2) and signal receive section (3), sees accompanying drawing, it is characterized in that the 220V alternating current is through diode D ₁Divide three loops after the half wave rectification: one is controllable silicon SCR and button N ₂Parallel control buzzer phone F circuit; Article one, be K switch and button N ₁Back in parallel and LED ₁Series connection is by two wires and signal lamp L and LED ₂Series connection; Article one, be resistance R ₂With after capacitor C is in parallel and resistance R ₁, diode D ₂The SCR control polar circuit that is in series.Signal transmission unit branch (2) is contained in the casing (1), and casing (1) is installed in the common aisle of bottom of residential building usually, and signal receive section (3) is contained in the box and is placed in the householder room, wherein button N ₂Be contained in outdoors, as the button of doorbell, when pressing the button N ₂The time, buzzer phone F sounding.

Below in conjunction with the description of drawings principle of work: when connecting K switch, circuit is connected, and the 220V alternating current is by diode D ₁Be rectified into the half-wave pulsating direct current, through L, LED ₁, K, LED ₂Become the loop, 2 of A, O produce about 1.6V voltages, cond C is charged, the alternating current electric current from the A point through C, R ₁, D ₂Trigger the control utmost point of controllable silicon SCR, because the added voltage of controllable silicon SCR is the half-wave pulsating direct current, so controllable silicon SCR is interrupted conducting, buzzer phone F sounding.Along with the minimizing of charging current, when less than silicon control minimum trigger current, stop to trigger.When exchanging negative half period, the direct current no-output, controllable silicon SCR is turn-offed.Buzzer phone voiced process about 2 seconds.After K disconnected, charge circuit turn-offed, and the charging valtage of cond C is through resistance R ₂Discharge, get ready for trigger next time.As the very brief N that presses the button ₁The time, cond C charging duration reduces, and discharge time, lengthening occurred so do not have the situation that stops automatically triggering, and to press the time identical with button basically for the phonation time of buzzer phone F.If but button is pressed overlong time, buzzer phone F sounding also can stop certainly, so button N ₁Pressing should be very brief.Signal lamp L reminds the householder that letter is arranged in mailbox as a kind of signal aspect and indication, after letter is removed K switch is opened, and signal lamp just goes out.

The utility model has the advantages that input mails such as mails, just can allow resident family know that mailbox has mail etc. as long as connect K switch; Press and notify from a phone call button N ₁Resident family just knows that the someone notifies from a phone call; Press the button N ₂, know that the someone looks for outdoors.

The electrical schematic diagram of embodiment and component parameter are as shown in drawings.

Claims

1, a kind of electronic mail, by casing (1), signal transmission unit branch (2) and signal receive section (3) are formed, and it is characterized in that the 220V alternating current is through diode D ₁Divide three loops after the half wave rectification: one is controllable silicon SCR and button N ₂Parallel control buzzer phone F circuit; Article one, be K switch and button N ₁Back in parallel and LED ₁Series connection is by two wires and signal lamp L and LED ₂Series connection; Article one, be through resistance R by the A point ₂With after capacitor C is in parallel and resistance R ₁, diode D ₂The SCR control polar circuit that is in series.