CN2043421U

CN2043421U - Automatic time-delay switch device

Info

Publication number: CN2043421U
Application number: CN 88206319
Authority: CN
Inventors: 邓江工
Original assignee: Individual
Current assignee: Individual
Priority date: 1988-05-28
Filing date: 1988-05-28
Publication date: 1989-08-23

Abstract

The utility model discloses an automatic time-delay switch device which is suitable for a public illumination lamp, in particular to the public stair lamp in a building, and the automatic time-delay switch device is also suitable for the devices which need to be switched on and off according to the time. The automatic time-delay switch device is characterized in that the automatic time-delay switch device adopts a composite transistor composed of two transistors to control the switching of a relay, the automatic time-delay switch device gives full play to the two pairs of the normally closed contacts and the normally open contacts, and the lamp can be turned on and automatically be turned off in fixed time when the current fluctuation of the commercial power is large. The automatic time-delay switch device has the advantages of large voltage dynamic range, adjustable delay, small required devices, low cost, small size, convenient installation, easy debugging, long service life, strong adaptability, safety and outstanding energy-saving effect.

Description

Automatic time-delay switch device

The utility model relates to a kind of electric switch, especially a kind of Auto-delay switch.

At present, the public stair light of the illuminating lamp of some public places, particularly residential building, ubiquity problem kept burning day and night whole night, both wastes energy like this, easily bulb is burnt out again.Though occurred many similarly switches on the market, existed following problem mostly: (1) complex circuit, component number is many, the cost height; (2) volume is big, is difficult for reequiping on original regular tap; (3) dynamic range is little, and voltage fluctuation easily influences the normal use of switch; (4) time-delay is non-adjustable, promptly can only be limited in certain certain hour, and can not freely select delay time according to the length of required lighting hours.

For overcoming the above shortcoming, the utility model is designed a kind of electric light that can make and is extinguished automatically again in the scheduled time after lighting, and the voltage dynamic range is big, and volume is little, and the life-span is long, and it is adjustable to delay time, Auto-delay switch device easy to use.

Here in conjunction with the accompanying drawings a specific embodiment of the present utility model is described in detail.

Accompanying drawing one is the circuit theory diagrams of Auto-delay switch device.

Wherein: D ₁, D ₂, D ₃, D ₄Be the bridge rectifier that four diodes are formed, BG ₁, BG ₂It is the multiple tube that two triodes are formed; J is a relay, J ₁, J ₂Be respectively two pairs of normally-open normally-close contacts of relay; C ₁Be a metalized polypropylene condenser, C ₂Be filter capacitor, C ₃Be charging capacitor; K one often opens automatic reset switch.J ₁Normal battle and K and connect; J when circuit is not worked ₂With resistance R ₂After serial connection, K switch start again with C ₂Serial connection; Multiple tube and relay also connect, and more than form a control delay circuit, C ₁Be connected in series with this circuit.

Moment after K switch is closed is because J ₁, J ₂All be failure to actuate, thereby C ₂Disconnect, civil power is through C ₁Step-down, after the diode rectifier circuit rectification, the electric current overwhelming majority flows into relay J, makes its disposable rapid adhesive again; This moment J ₁Closure, electric light is lighted, J ₂Normally-closed contact disconnects discharge resistance R ₂, the normally opened contact closure, and with filter capacitor C ₂Connect, few part electric current passes through R ₃To C ₃Charging makes C ₃Both end voltage raises gradually; Work as C ₃When voltage surpassed the base stage conducting current potential of multiple tube, multiple tube was saturated immediately, made relay J lose sustaining voltage and discharged; This moment J ₁Recover normally open, J ₂Recover normally off, electric light extinguishes; This moment C ₃On electric charge pass through R ₂Discharge rapidly, until draining, the operate as normal of switch when guaranteeing to turn on light continuously.

Also can according to the length of required lighting hours be connected in series a resistance or a diode between A, the B at 2.When the needs electric light is lighted time-delay less than 30 seconds, can between A, B, be connected in series a resistance; Light time-delay in the time of 30～120 seconds when the needs electric light, can make short circuit between A, B (as accompanying drawing); Light time-delay more than 120 seconds the time when the needs electric light, can make diode of serial connection between A, B.

With the prior art contrast, the utlity model has following characteristics:

(1) given full play in the relay two pairs often open, the effect of normally-closed contact, enlarged the dynamic range of voltage, but made the utility model all one-shot and normal operations in civil power is 160～260V scope.

(2) reference time delay is adjustable, under the situation that does not change other component parameter, controls multiple tube base stage injection current and current potential, can change the length of relay operating time, to satisfy different occasions, the needs of different user.

(3) owing to adopted the multiple tube of two triode compositions to come cut-offfing of control relay, both can reduce cost, and can make debugging simple again, also can prolong the release time of relay.

(4) because multiple tube is in parallel with relay, the moment inductive current loop in the time of both can providing relay to open circuit, and do not need to add in addition the backflow diode, in case can make the multiple tube conducting again, outage immediately after several seconds of only working.

(5) owing to J with relay ₁Normally opened contact and K switch also connect, and therefore, as long as make switch be in normally open all the time, just can allow cut-offfing of relay control lighting and extinguish of electric light.

(6) since volume less than common matchbox, in small size switch enclosure or the lamp cap box of can packing into, therefore, be convenient to the installation in new building, the repacking that is more suitable for aging blocks is changed, utilize original backguy or rocker switch, have the switch of often opening push button function and can use also available bell button place of switches as long as it is repacked into.

(7) little power consumption, not power consumption when not turning on light, self power consumption more than 90%, also can prolong the life-span of bulb than normal bright lamp economize on electricity less than 0.3W during operate as normal.

(8) owing to adopt electric capacity to replace the transformer step-down, therefore volume is dwindled greatly, and supply line is capacitive load, can improve the power factor of circuit.

(9) life-span long, the switch number of times is more than 100,000 times, with every day switch 30 times calculate, available more than 9 years.

(10) of many uses, can be used for the switch of stair light or corridor lamp, also can be used for the regularly unit of break-makes of some needs, as the electric bell of the upper and lower class usefulness of school etc.

Claims

1, a kind of Auto-delay switch device is made up of diode rectifier circuit, control delay circuit etc., it is characterized in that:

In a, the control delay circuit two triode BG are arranged ₁, BG ₂Multiple tube and the relay J formed are connected in parallel;

The pair of contact J of b, relay ₁In normally opened contact in parallel with switch k, another is to contact J ₂In normally-closed contact pass through resistance R ₂With charging capacitor C ₃Parallel connection, switch activated back normally opened contact and filter capacitor C ₂Series connection;

C, decompression capacitor C ₁Connect with the control delay circuit.

2, Auto-delay switch device according to claim 1 is characterized in that the A, B point-to-point transmission of multiple tube base stage can short circuit, also can be connected in series a resistance or a diode.

3, Auto-delay switch device according to claim 1 is characterized in that K switch is to have automatically reset normally open push button switch, also can be pulling switch or rocker switch after the repacking.