CN2705814Y - Multigang switch - Google Patents

Abstract

The utility model relates to a kind of electronic switch, particularly multigang switch, comprises two or more trigger switches at least, it is characterized in that: comprise that also a relay switch, relay switch are connected in the main circuit, the conducting and the disconnection of control main circuit; And a control module, the input end of trigger switch Access Control module in parallel, the output terminal of control module is connected with the coil of relay switch through signal amplification circuit; Control module receives the pulse signal of trigger switch, produces corresponding energizing signal and maintenance automatically, with the switching state of pilot relay switch.The utility model is applicable to rooms such as the office that needs a plurality of switches to control same electrical appliance, bedroom, warehouse, also can be used to control the stair light of tier building etc.

Description

Multigang switch

Technical field:

The utility model relates to a kind of electronic switch, particularly multigang switch.

Technical background:

Electronic switch is one of opertaing device commonly used of daily life electrical appliance, in some occasion, need to use a plurality of switches control same electrical appliance equipment, as the electric light in the corridor etc.Can realize with the duplex combined switch, but the duplex combined switch can not be formed the gauge tap that realizes more than three in the past.When if some occasion need use the switch more than three to control same electrical appliance, can only replace with two duplex combined switches, perhaps select special three-way switch for use, but, the common drawback of these switches is exactly: attachable gauge tap number is certain, cannot increase and decrease according to actual needs.This gives installation, maintenance and uses and bring a lot of inconvenience and trouble.

Summary of the invention:

Gauge tap number at existing duplex, three-way switch is certain, the defective of control underaction, and the multigang switch that the utility model provides not only can increase and decrease number of switches according to actual needs, and simple in structure, easy for installation.

The technical scheme that the utility model adopted:

Multigang switch comprises two or more trigger switches at least, it is characterized in that: also comprise,

One relay switch, relay switch are connected in the main circuit, the conducting and the disconnection of control main circuit;

And a control module, the input end of trigger switch Access Control module in parallel, the output terminal of control module is connected with the coil of relay switch through signal amplification circuit; Control module receives the pulse signal of trigger switch, produces corresponding energizing signal and maintenance automatically, with the switching state of pilot relay switch.

When multigang switch is worked, the trigger pip that any one trigger switch sends, the output state flip that can make control module once, promptly by original conducting become by or by original by becoming conducting.The control effect of each trigger switch all is identical, realizes that jointly a plurality of switches control the purpose of same electrical appliance.

The beneficial effects of the utility model: control module and trigger switch are relatively independent, the flip-flop circuit that control module adopts the Digital Logic integrated chip to form, and circuit structure is simple, reliable operation; Therefore simultaneously, simplified the structure of trigger switch, can arbitrarily increase and decrease number of switches, and installation, maintenance and use are all very convenient.Be applicable to rooms such as the office that needs a plurality of switches to control same electrical appliance, bedroom, warehouse, also can be used to control the stair light of tier building etc.

Description of drawings:

Fig. 1 is the circuit structure block diagram of multigang switch;

Fig. 2 is the circuit theory diagrams of the control module of multigang switch;

Embodiment:

As shown in Figure 1, 2, multigang switch is made up of trigger switch 1, control module 2 and relay J 1.Trigger switch 1 is connected with the input end of control module 2, and relay J 1 is connected in the main circuit, and control module 2 is by Digital Logic integrated chip 74ALS00A (comprising Sheffer stroke gate U1A, U2B, U3C, U4D), amplifying circuit, and some resistance and electric capacity are formed.

When trigger switch K1～K3 was not subjected to triggering, the output signal of U2B and U3C was constant, and relay J 1 keeps original state; When among trigger switch K1～K3 any one was subjected to triggering, the positive pulse of generation was through R5, C4, by U1A and U4D input, open the NAND Logic door, the output state of U2B and U3C is changed, after positive pulse disappears, logic gate is closed, and the output state of U2B and U3C remains unchanged.C1 and C2 carry out charge or discharge (electric capacity charging during by high level step-down level, otherwise then discharge) at short notice, opposite input state before the input end 12 that this moment, C2 and C1 were respectively the input end 1 of U1A and U4D provides and positive pulse arrives.When next positive pulse arrives, the output state of U2B and U3C is changed once more, the state of the input end 1 of U1A and the input end 12 of U4D is also along with change, i.e. and the every triggering of trigger switch once all can make the output state of U2B and U3C change once and maintenance automatically.Get of the amplification of the output signal of U3C, drive the break-make of relay J 1 control load switch, realize electric connection or disconnection through triode 9013.

Claims (2)

1. multigang switch comprises two or more trigger switches at least, it is characterized in that: also comprise,

One relay switch, relay switch are connected in the main circuit, the conducting and the disconnection of control main circuit;

And a control module, the input end of trigger switch Access Control module in parallel, the output terminal of control module is connected with the coil of relay switch through signal amplification circuit; Control module receives the pulse signal of trigger switch, produces corresponding energizing signal and maintenance automatically, with the switching state of pilot relay switch.

2. multigang switch according to claim 1 is characterized in that: trigger and automatic holding circuit that control module is made up of digital Sheffer stroke gate U1A, U2B, U3C and U4D.