CN2036728U

CN2036728U - Time delay automatic turn-off device for electric lamps

Info

Publication number: CN2036728U
Application number: CN 88207988
Authority: CN
Inventors: 博战捷
Original assignee: SCIENTIFIC RESEARCH DEPT NEIMONGGOL NORMAL UNIV
Current assignee: SCIENTIFIC RESEARCH DEPT NEIMONGGOL NORMAL UNIV
Priority date: 1988-07-02
Filing date: 1988-07-02
Publication date: 1989-04-26

Abstract

The utility model discloses a time delay automatic turn-off device for electric lamps, which is suitable for the automatic turn-off control in all places needing short time lighting. The decompression of the circuit adopts a capacitance, an integrated circuit NE555 or the homogeneous circuit is served as the control center, and the execution part adopts a bidirectional controlled silicon. The utility model is characterized in that when the utility model is used in a great amount of old circuits, the main wiring mode of the prime lighting circuit is not needed to be changed, and any device on the prime lighting circuit is not needed to be changed. Arranging the time delay automatic turn-off device for electric lamps near the lamp socket, the purpose of time delay turn-off is achieved. The utility model has the advantages of simple structure, convenient installation and obvious energy-saving effect. The installation is not limited by the type and the position of the mechanical switch in the prime lighting circuit.

Description

Time delay automatic turn-off device for electric lamps

The utility model belongs to electronic technology field, is that lamp control device is closed near a kind of time-delay that can be positioned on the lamp socket automatically.

The existing Electronic Control time-delay device of turning off the light is automatically all paid attention in the transformation of switch performance structure, and this wiring to new building is feasible, but also there is certain difficulty in the repacking of the old circuit that a large amount of nothing time-delay control is turned off the light automatically.For example, need to change former a large amount of operating switchs or pulling switch into button or contact witch, if former switch is the pulling switch that is contained in eminence, when making button or soft-touch control into, the position of the switch need be moved down, this must change former line layout.In addition, the delay switch of many designs is wanted operate as normal, must be aided with zero line, but the former position of the switch often has only a live wire, and zero line also needs adjunction separately, and former switch also will remove.Also have, the delay switch of some design can only decide the time of turning off the light by control circuit, and in the time was turned off the light in its time-delay, people can not turn off lamp at any time.

Main purpose of the present utility model provides a kind of switch and the wire laying mode that needn't change former illuminating line road, can be directly installed near the time-delay lamp socket device of turning off the light automatically.

Control circuit power supply of the present utility model is made up of decompression capacitor, current-limiting resistance, rectification diode and filter capacitor, and time-delay control core devices adopts time-base circuit NE555 or homogeneous circuit, and operating part adopts bidirectional triode thyristor.Control circuit partly is contained in the housing that is formed by the compacting of plastics or bakelite, draws three leads in housing.Carry out ingenious the connection by drawing lead with the mechanical switch illuminating line, make it reach the purpose that time-delay is turned off the light automatically these three.Main feature of the present utility model is: on a large amount of old circuits, needn't change main wire laying mode, also needn't move or change any device on the former circuit, as long as set up this device on old circuit, just can reach the purpose that time-delay is turned off the light.And this Unit Installation position is not subjected to the constraint of former line switching type and position.For the new clothes circuit, this device is suitable for too.In a single day in addition, the illuminating line of setting up this device also has following characteristics: in the time was turned off the light in time-delay, people can turn off lamp at any time, and turned off the light, overrun control also cuts off the power supply, no longer consumed power.

Physical circuit of the present utility model and method of attachment are born by following examples and accompanying drawing.

Fig. 1 is electronic control circuit figure of the present utility model.

Fig. 2 is the attached view of the utility model housing outward appearance.

Fig. 3 is the method for attachment schematic diagram of the utility model on illuminating line.

Below in conjunction with Fig. 1 circuit structure of the present utility model and operation principle are described: voltage～220V is through capacitor C ₁Step-down, R ₁Current limliting is by D ₁, D ₂Rectification, C ₂Direct voltage of output after the filtering; R ₁Effect be to reduce in K switch closed moment, the big electric current of capacitive load is to make and break contact and D ₁, D ₂Impact.Time-delay after turning on light is turned off the light the time by R ₂, C ₂Decision can be used formula t=R ₂C ₃L _n3 calculate this time; Delay time generally changed R when changing in several seconds to a few minutes ₂Value just can.R ₃, R ₄Play metering function, choosing of their value be more or less the same, in the time of can avoiding this device to work in different conditions like this, and the fluctuating widely of direct current supply voltage.The core devices of this circuit control section is time-base circuit NE555(or homogeneous circuit).This circuit has more accurately that voltage ratio triggers turn over function, gets final product so need not to adjust when installing.Operating part is finished by bidirectional triode thyristor BCR.

The operation principle of Fig. 1 circuit is: when mechanical switch K is closed, and control circuit energising, C ₂Both end voltage begins to rise by zero, and this moment, its 3 pin was output as high level by the decision of time-base circuit NE555 self character, controllable silicon BCR conducting, and lamp L is bright; C ₂Powering on to press is raised to a certain degree, and the characteristic of NE555 determines its 3 pin output will become low level, and at this moment lamp L extinguishes, and has reached time-delay and has turned off the light.It can also be seen that from Fig. 1 circuit when K switch was opened, lamp and control circuit all cut off the power supply, so, also can turn off the light not power consumption of overrun control this moment at any time even the time-delay time of turning off the light is less than by the people.

The method of attachment of the utility model on illuminating line illustrates in conjunction with Fig. 3:

1, automatic control time-delay is turned off the light device is fixed near the illuminating lamp holder;

The left side lead 1 that 2, will install is connected on the live wire of lamp socket (or lamp socket is outer);

3, the former zero line that connects illuminating lamp holder is pulled down, and zero line and time-delay mechanism lower end lead 3 are joined;

4, this device right side lead 2 is connected on the former connecting to neutral line of illuminating lamp holder place.

Below again in conjunction with Fig. 3 to using method of the present utility model further instruction in addition:

If 1 end user needs the situation of observing in short-term in the time that time-delay is turned off the light, as long as master cock K can turn on light and turn off the light, when turning off the light, lamp all cuts off the power supply with device.

If leave away after 2 end users turn on light, lamp can be turned off the light after bright a period of time automatically; At this moment lamp outage, but control device does not have outage.

When 3, messenger turns on light again, switch is pulled twice continuously, lamp is promptly bright.Principle is: pull K switch for the first time, make last closed switch opens, the device outage is pulled switch for the second time, K closure, trigger control procedure again again.Because electronic installation state exchange this moment is rapid, therefore, the end user can achieve the goal by normal fast operating switch.

4, daytime is as long as use K switch to turn off the light, and just can make this control device no longer consumed power that cuts off the power supply.

Operating voltage range of the present utility model is～180-～240V that time-delay self-con-tained unit power consumption is only below 0.2W.The present invention can be contained in indoor or outdoors and cover the rain place, should prevent solar exposure.

Claims

1, a kind ofly constitutes by control circuit and housing, be installed near the time-delay lamp socket electronic auto-control device of turning off the light automatically, it is characterized in that: the control circuit power supply is made up of decompression capacitor, current-limiting resistance, rectification diode and filter capacitor, time-delay control core devices adopts time-base circuit NE555 or homogeneous circuit, and operating part is finished by bidirectional triode thyristor.

2, the time-delay automatic control according to claim 1 device of turning off the light is characterized in that: this circuit is installed in the housing by plastics or bakelite compacting, and three exits 1,2,3 of circuit are respectively by drawing in the housing.

3, according to claim 1 and the described time-delay automatic control of claim 2 device of turning off the light, it is characterized in that: it can directly be fixed near the lamp socket, and its three exits 1,2,3 join with live wire end, the lamp socket former connecting to neutral line place of lamp socket (or lamp socket is outer) and the zero line of former circuit respectively.

4, the time-delay automatic control according to claim 1 device of turning off the light, it is characterized in that: its installation site on the line is not subjected to the switchtype of former circuit and the constraint of position.