CN2172929Y

CN2172929Y - Automatic switch

Info

Publication number: CN2172929Y
Application number: CN 93239254
Authority: CN
Inventors: 樊成华; 何泽超
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-09-10
Filing date: 1993-09-10
Publication date: 1994-07-27
Anticipated expiration: 2003-09-10

Abstract

The utility model discloses an automatic switch, comprising a casing, an antenna, a binding post, circuits, etc. The utility model has the advantages that a lamp can be turned on when a person comes; the lamp can not be turned off as long as the person is in the control range of the automatic switch; the lamp can be turned off when the person leaves; only one wire goes through the switch; the luminance of the lamp can be increased gradually. The utility model can be used in places which are not managed by people or need frequent lamp switching, such as a corridor, a toilet, etc.

Description

Automatic switch

The utility model relates to a kind of automatic switch.

In the family, often the lamp in open and close kitchen, lavatory, hallway in an old Chinese house is a pretty troublesome thing, has also shortened the useful life of bulb, has increased many worries that change the bulb, sometimes also can be because of forgetting the electricity wasting of turning off the light.In corridor, corridor, public lavatory or other public arenas, find altar lamp or pitch-dark phenomenon through regular meeting.The altar lamp electricity wasting shortens bulb life; Pitch-dark is that nobody changes because of lamp is spoilt, and makes troubles to life, also causes opportunity to the thief.

The purpose of this utility model is to propose a kind of economize on electricity, can prolongs bulb service life, and is easy for installation, and have the people to lamp from bright, the people does not put out at lamp, the people walks lamp from the automatic switch that goes out, to solve the problem that exists in the present lamp switch.

The utility model is by housing, formations such as antenna, binding post, printed circuit board (PCB), circuit, it is characterized in that: (1) housing is by injection molded, and antenna and binding post are solidificated on the housing when injection moulding, design has two installing holes on housing, and its pitch-row is 60 millimeters; (2) antenna links to each other with binding post, and printed circuit board (PCB) is fixed on the housing by binding post, and antenna and circuit are connected; (3) circuit is contained on the printed circuit board (PCB), it includes formations such as microwave generation circuit, operational amplification circuit, testing circuit, delay circuit, control circuit, power circuit, light measuring circuit, it is characterized in that: A. resistance R 1 is with in parallel with controllable silicon SCR again after capacitor C 1 is connected; B. the output pin of integrated circuit (IC) 5 links by the base stage of resistance R 25, R27 and triode BG3, and the emitter of triode BG3 and the control end of controllable silicon SCR link, and capacitor C 12 positive poles are connected between R25 and the R27; C. the positive pole of a termination capacitor C12 of resistance R 26, the base stage of another termination triode BG2, the collector electrode of triode BG2 and resistance R 21, diode D4 link.

Housing can be circular with case design by plastic injection-moulded shaping.Antenna and binding post are metal material, earlier antenna are fixed on the binding post, it are bumped in the custom-designed housing injection mold then.When the housing injection molded, antenna and binding post just have been solidificated on the housing.Two installing holes, its effect are arranged is that housing is installed on the wall in design on housing, and the pitch-row of these two installing holes is 60 millimeters, and is corresponding with the pitch-row of general pre-buried power switch box on the wall.

The use in printed circuit board screw is installed on the housing by binding post, and the contact portion of printed circuit board (PCB) and binding post is a Copper Foil, this Copper Foil and circuit are connected, so just with the antenna place in circuit.

Form microwave generation circuit with triode BG1 and peripheral cell (capacitor C 6, resistance R 5, R6), the microwave that is produced is launched by antenna BT.Owing to produce Doppler signal when microwave is met mobile object, this signal carries out the signal amplification through the inductance L induction after capacitor C 7 corners are bonded to operational amplification circuit.

Element constituted around operational amplification circuit was reached by integrated circuit (IC) 1 and IC2, and the Doppler signal after being closed by capacitor C 7 corners is sent into testing circuit after amplifying.

Testing circuit is made of peripheral cells such as IC4 and triode BG2.In the current collection of triode BG2 low level and when induction has Doppler signal very, the IC4 output low level, on the contrary then export high level.Signal is after testing sent into delay circuit.

Element (resistance R 22, R23, diode D5, capacitor C 11 etc.) constituted around delay circuit was reached by integrated circuit (IC) 5.When IC4 is output as low level, capacitor C 11 is by diode D5 and resistance R 22 repid discharges, when C11 powers on when forcing down certain value, then the 3rd pin of IC5 is exported high level, and when IC4 is output as high level, then slowly voltage is risen to capacitor C 11 chargings by R22 and R23, after voltage is raised to certain value, the 3rd pin output low level of IC5, the output connection control circuit of delay circuit.

Control circuit is by resistance R 25, R26, R27, capacitor C 12, formations such as triode BG2, BG3.After R25, C12 time-delay, deliver to the base stage of triode BG2 and BG3 respectively through resistance R 26 and R27 by the high level of delay circuit output, the break-make of control BG2 and the emitter current of BG3, thereby make infull conducting of controllable silicon SCR and full conducting, lamp changes from weak to strong, when IC5 is output as low level, not conducting of BG3, controllable silicon SCR does not trigger, and lamp goes out.

Power circuit is made of controllable silicon SCR, resistance R 1, R2, capacitor C 1, C2, C3, C4, diode D2, voltage-stabiliser tube D1, D3 etc.The 220V civil power when the controllable silicon SCR conducting, through electric light DX current limliting, voltage-stabiliser tube D1 pressure limiting, diode D2 rectification; When not conducting of controllable silicon, then through electric light DX, resistance R 1, capacitor C 1 step-down after D1, D2 rectification.Because voltage mainly falls on C1, thereby consumption active power is very little.Voltage after the rectification obtains direct voltage and as the working power of BG3 after C2, C3 filtering, in addition through the R2 current limliting, and voltage-stabiliser tube D3 voltage stabilizing, capacitor C 4 filtered stable dc power supplies are made the work power supply for each several parts.

Light measuring circuit can be photo resistance, photodiode or phototriode by integrated circuit (IC) 3, light-sensitive element GR() and the peripheral cell formation.IC3 output high level when light is strong, when C12 is high level, the BG2 shorted to earth, diode D4 no current passes through, and does not influence IC4 and detects and rein in signal more.When C12 was low level, BG2 disconnected, and then the high level of IC3 output is via resistance R 21, and diode D4 is added to the input anode of IC4, makes IC4 can not detect Doppler signal, and IC4 is output as high level.

Description of drawings of the present utility model.

Accompanying drawing 1, structure chart of the present utility model.

Accompanying drawing 2, it is the vertical view of Fig. 1.

Accompanying drawing 3, the utility model user mode figure.

Accompanying drawing 4, circuit diagram of the present utility model.

In accompanying drawing 1 and accompanying drawing 2, accompanying drawing 2 is the attached views after accompanying drawing 1 is pulled down cover plate (9), circuit (8), printed circuit board (PCB) (6).

Housing (1) and antenna (2) can be designed to garden shape or other shapes, but are good with circle.Antenna (2) and binding post (3) are solidificated on the housing (1), and the distance between two installing holes (4) is 60 ^{± 2}Millimeter.(5) be the installing hole of light-sensitive element, this hole is a blind hole, and the thickness δ with surface of shell at the bottom of the hole is designed to 0.1～0.8MM, so that printing opacity.Printed circuit board (PCB) (6) is fixed on the binding post (3) with screw (7), and circuit (8) is contained on the printed circuit board (PCB) (6).(9) be cover plate.

In accompanying drawing (3), (10) are embedded in the body of wall (11) during the house by construction for this switch enclosure of power switch box that is embedded in body of wall in.When the utility model is installed, two lead-out wires (A in accompanying drawing 4, B 2 points) and two switching lines (13) that are embedded in the body of wall (11) are connected, used screw (12) this automatic switch to be fixed on the body of wall then and get final product by installing hole (4).

In accompanying drawing 4, R1～R28 is a resistance, and C1～C12 is an electric capacity, and BG1～BG3 is a triode, and IC1～IC5 is an integrated circuit, and D1, D3 are voltage stabilizing didoes, and D2, D4, D5 are diodes, and SCR is a controllable silicon, and BT is that antenna (2) L is an inductance, and DX is a bulb.2 of A, B are pigtail splice.

The utility model has the following advantages compared with the prior art:

1. easy for installation: the utility model only has two lead-in wires, and is the same with regular tap, do not need rewiring.

2. when the people moved in control range, bulb can not extinguish.

3. bulb is gradually bright, and the moment impact electric current of having avoided turning on light damages the possibility of bulb.

4. the people is bright to lamp, turns off the light when you leave, and need not draw, and need not press, and uses very convenient.

5. the concealment of antenna is good, good looking appearance.

Claims

1, a kind of automatic switch, it includes housing, antenna, binding post, printed circuit board (PCB), circuit, it is characterized in that:

(1) housing is by injection molded, and antenna and binding post are solidificated on the housing when injection-moulded housing;

(2). antenna links to each other with binding post, and printed circuit board (PCB) is fixed on the housing by binding post, and antenna and circuit are connected;

(3) circuit includes microwave generation circuit, operational amplification circuit, testing circuit, delay circuit, control circuit, power circuit, light measuring circuit, and is in parallel with controllable silicon SCR after resistance R 1 is connected with capacitor C 1; The output pin of integrated circuit (IC) 5 (the 3rd pin) links by the base stage of resistance R 25, R27 and triode BG3, and the emitter of triode BG3 and the control end of controllable silicon SCR link, and the positive pole of capacitor C 12 is connected between resistance R 25 and the R27; The positive pole of one termination capacitor C12 of resistance R 26, the base stage of another termination triode BG2, the collector electrode of triode BG2 and resistance R 21 and diode D4 link.

2, a kind of automatic switch as claimed in claim 1 is characterized in that design has a blind hole that light-sensitive element is installed on the housing, and the thickness with surface of shell at the bottom of the hole is 0.1～0.8MM; Design has two installing holes on housing, and its pitch-row is 60 ± 2 millimeters.

3, a kind of automatic switch as claimed in claim 1 is characterized in that housing and Antenna Design are circular.