CN2082922U

CN2082922U - Multipurpose electronic pull-switch

Info

Publication number: CN2082922U
Application number: CN 90218537
Authority: CN
Inventors: 李德恒
Original assignee: Individual
Current assignee: Individual
Priority date: 1990-08-21
Filing date: 1990-08-21
Publication date: 1991-08-14

Abstract

The utility model discloses a multipurpose electronic pull switch, comprising an ordinary pull switch and an electronic control circuit in a casing. The utility model has double duties of normal open closing and self extingushing powerdown, adopting one pull wire to operate, the user can pull the pull wire to select his desired operating state. The switch can be used as a street lamp surrounding housing and a lamp switch in corridors, making the self extingushing function achieve the goal of power save and prolonging the lifetime of the bulb. The utiklity model has simple and reliable circuit, and the mounting position and the wire connection process are identical with an ordinary pull switch.

Description

Multipurpose electronic pull-switch

The utility model relates to a kind of multiduty pulling switch, particularly a kind ofly can continue closure (normal open), again can the closed in short-term electronics pulling switch of outage (putting out certainly) automatically.

Common pulling switch compare with other switch have easy for installation, save lead, safe and reliable advantage, but use inconvenience is arranged still in some place.Street lamp and the corridor lamp around the house for example, personnel come in and go out when frequent in night, should make switch place " normal open " position continued power, come in and go out personnel and should not use " putting out certainly " function for a long time, the purpose that reaches economize on electricity and prolong bulb life.For example many again users will close pulling switch earlier, touch black going to bed, some inconvenience again before sleep.If can move pulling switch to " putting out certainly " position from original " normal open " position, treat that the people goes to bed to turn off the light automatically after a few minutes, just feel more convenient.Yet existing pulling switch can't satisfy above-mentioned requirements, and existing " self-extinguishing switch " has only the single function of putting out certainly mostly, and installation wiring inconvenience, so the scope of application is wideless.

The utility model has remedied the weak point of the said goods, can make switch alternately place " normal open " or " putting out certainly " position when the pulling backguy.Its wiring position and method are consistent with existing pulling switch, and it is very convenient to install.Its static power consumption is zero, and every than other self-extinguishing switch year economize on electricity 3～4 degree.

The purpose of this utility model is to provide a kind of simple, cheap, economize on electricity, easy for installation to the user, has the electronics pulling switch that " normal open " reaches " putting out certainly " function.

Accompanying drawing is a circuit diagram of the present utility model.

The utility model is mainly by common pulling switch, filter circuit of pressure-stabilizing, and control circuit of time limit and action indicating circuit are formed.

Now in conjunction with the accompanying drawings:

In the accompanying drawing, change over switch K adopts common doubly-linked stayguy switch fabric; Filter circuit of pressure-stabilizing is made up of voltage-stabiliser tube DW, diode D and capacitor C 1; Control circuit of time limit is made up of triode BG1, BG2, capacitor C 2, resistance R 1, R2, R3 and relay J; The action indicating circuit is made up of resistance R 4 and LED; KO represents the original pulling switch that uses.The contact a of K switch and relay J often open fixed contact and terminals A links, the moving contact of K and the moving contact of J link; Be connected to a voltage-stabiliser tube DW between the moving contact of change over switch K and terminals O, an end of relay coil and the end of DW link, and the other end of relay coil links with the other end of DW by diode D again; The collection emitter-base bandgap grading of the coil of relay and capacitor C 1 and triode BG1 is in parallel, and BG1 base stage and BG2 collector electrode link, and the positive pole of BG2 emitter and D links; Resistance R 2 is connected with capacitor C 2, and the end of R2 connects with the fixed contact b of K, and the negative pole of C2 connects with the positive pole of D, is connected to resistance R 3 between C2 positive pole and BG2 base stage, and the normally closed fixed contact of J links by the positive pole of R1 and C2; Between the positive pole of the fixed contact b of K and diode D, connected R4 and LED.

This electronics pulling switch need only link and get final product with two line end A, the O of former pulling switch in use, and it is very convenient to install.When K switch was pulled to a point position, the positive half wave electric current flow through load by DW, C1 and J, and negative half-wave current flows through load by DW, and the power supply that makes load obtain continuing has obtained the galvanic current source at the relay J two ends simultaneously, and J is in attracting state.When K switch was pulled to b point position, LED was shinny, and the expression switch has entered from putting out state, and this moment, electric current charged to C2 by R2.After a few minutes, when C2 was charged to a certain current potential, BG2 began conducting, and the collection emitter potential of BG1 is reduced, draw at the pincers of BG1 relay J is discharged, thus the power supply that cuts off load automatically, entire circuit is in zero power consumption state.

Accompanying drawing has constituted the complete embodiment of the utility model one.

Claims

1, a kind of multipurpose electronic pulling switch mainly is made up of common pulling switch and electronic controller, and electronic controller is made of filter circuit of pressure-stabilizing, control circuit of time limit and action indicating circuit, it is characterized in that:

A, function switch K adopt backguy to link, and when the pulling backguy, its moving contact is alternately connected with a, b two fixed contacts respectively, contact a and relay J often open fixed contact and terminals A links, the moving contact of K connects with the moving contact of J;

B, be connected to a voltage-stabiliser tube DW between the moving contact of change over switch K and terminals 0, an end of relay coil and the end of DW link, and the other end of relay coil links with the other end of DWR by diode D again;

The coil of c, relay and capacitor C ₁And triode BG ₁The collection emitter-base bandgap grading be in parallel BG ₁Base stage and BG ₂Collector electrode links, BG ₂The positive pole of emitter and D links.

2, electronics pulling switch as claimed in claim 1 is characterized in that:

A, resistance R 2 are connected with capacitor C 2, and the end of R2 connects with the fixed contact b of K, and the negative pole of C2 connects with the positive pole of D, are connected to resistance R 3 between C2 positive pole and BG2 base stage;

The normally closed fixed contact of b, J links by the positive pole of R1 and C2.

3, electronics pulling switch as claimed in claim 1 is characterized in that connected R4 and LED between the positive pole of the fixed contact b of K and diode D, when change over switch places when putting out the position, LDE obtains power supply and shinny.