CN2413435Y

CN2413435Y - Electronic multiple switch

Info

Publication number: CN2413435Y
Application number: CN 00219815
Authority: CN
Inventors: 孙明海
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-03-28
Filing date: 2000-03-28
Publication date: 2001-01-03
Anticipated expiration: 2010-03-28

Abstract

The utility model relates to an electronic multiple switch which comprises a shell body and a voltage reduction circuit, a rectifying filter circuit, a relay switching control circuit and a relay circuit which are arranged in the shell body and are orderly connected, and a normally opened contact KA-1 of the relay KA is connected in series to a load loop. The utility model can realize multiple control to the same load and has the advantages of simple line structure, simple and convenient installation, separated main line and control switch and complete installation and operation.

Description

Electronic multi-link switch

The utility model relates to a kind of electronic switch, especially a kind of electronic multi-link switch.

In people's daily life, two places control is carried out in same load all adopted mechanical ganged switch, if will realize how controlling, be difficult to realize with ganged switch and usual circuit, must realize by increasing wiring, this not only brings great inconvenience to the wiring operation, and easy wrong, for example notification number is CN2355419Y, name is called the Chinese patent of " multi-joint tandem electric switch ", it discloses a kind of multigang switch that mainly is made of double-point double-throw switch, utilize this multigang switch, need realize controlling of load by increasing external connection, and this switch directly is connected in the load circuit manyly, therefore not only make troubles, and have accident potential to installation.

The purpose of this utility model is: providing a kind of can realize how controlling to same load, and line construction is simple, simple installation, and main line separates the electronic multi-link switch that installation and operation are all relatively safer with control switch.

The realization the technical solution of the utility model is: a kind of electronic multi-link switch, include housing, be arranged on the reduction voltage circuit, current rectifying and wave filtering circuit, relay on-off control circuit and the relay circuit that connect successively in the housing, the normally opened contact KA-1 of relay K A is serially connected in the load circuit, wherein: the relay on-off control circuit is made of button SB1, relay normally open contact KA-2, resistance R 1, R2, R3, diode D1, D2, D3 and controllable silicon SCR; After joining, the end of SB1 and the end of KA-2 connect an output of current rectifying and wave filtering circuit, the other end first via of SB1 is joined by the control utmost point of D2 and SCR, the second tunnel negative electrode by D1 and SCR joins, Third Road joins by resistance R 2 another output with current rectifying and wave filtering circuit, also be connected to resistance R 2 between the control utmost point of SCR and negative electrode, the negative electrode of SCR is by being joined by the branch road of R3, D3 parallel connection and the other end of KA-2; The two ends of button SB1 1 above button in parallel.

The utlity model has good effect: before 1, pressing the button SB1 or other button, supply voltage provides a trigger voltage for thyristor SCR, make SCR be in accurate conducting state, when pressing the button, relay K A gets electric, KA-1, KA-2 closures, load gets electric work, behind the release button, SCR is conducting also, and the terminal voltage of KA obtains by resistance R 3; When pressing the button for the second time, SCR is conducting still, and R3 is by the D3 short circuit, the KA dead electricity, KA-1, KA-2 disconnects, and the load dead electricity is not worked, circuit is got back to initial condition again behind the release button, therefore by button wiring that is arranged on many places and the method that connects, can realize controlling of same load manyly.When 2, installing, only need the button of all control loads is connected together, and the major loop of load remains unchanged, simple installation.3, circuit structure is simple, and cost is lower.4, load and control load work whether button be not in same loop, and the button both end voltage is very low, and therefore, installation is as safe as a house with operation, has eliminated accident potential.

Below in conjunction with drawings and Examples the utility model is described in further detail.

Fig. 1 is a circuit structure block diagram of the present utility model.

Fig. 2 is the circuit theory diagrams of embodiment 1 of the present utility model.

Fig. 3 is the circuit theory diagrams of embodiment 2 of the present utility model.

Fig. 4 is an installation winding diagram of the present utility model.

As shown in Figure 1: the utility model comprises housing and is arranged on the housing interior reduction voltage circuit 1, current rectifying and wave filtering circuit 2, relay on-off control circuit 3 and the relay circuit 4 that connect successively that the normally opened contact KA-1 of relay K A is serially connected in the load circuit 5.

As shown in Figure 2: the reduction voltage circuit 1 among the utility model embodiment 1 adopts transformer B step-down, for subsequent conditioning circuit provides low alternating voltage, through rectification, filtering and the voltage stabilizing of the voltage after the transformer step-down through current rectifying and wave filtering circuit 2, become stable low-voltage dc signal, for relay on-off control circuit 3 and relay circuit 4 provide reliably working voltage.Relay on-off control circuit 3 is made of button SB1, relay normally open contact KA-2, resistance R 1, R2, R3, diode D1, D2, D3 and controllable silicon SCR; After joining, the end of SB1 and the end of KA-2 connect the minus commun of current rectifying and wave filtering circuit 2, the other end first via of SB1 is joined by the control utmost point of D2 and SCR, the second tunnel negative electrode by D1 and SCR joins, Third Road joins by the output of resistance R 2 with current rectifying and wave filtering circuit 2, also be connected to resistance R 2 between the control utmost point of SCR and negative electrode, the negative electrode of SCR is by being joined by the branch road of R3, D3 parallel connection and the other end of KA-2.The current/voltage of the trigger voltage of SCR after by rectifying and wave-filtering obtains through resistance R 2, D2, resistance R 4, D3, D1, button SB1 and relay circuit 4, promptly the relay K A with fly-wheel diode constitutes the KA loop, promptly when button SB1 pressed, current signal passed through KA, D3, D1, SB1 to minus commun.The two ends of button SB1 also are parallel with 1 above button, control the operating state of SCR and relay K A by a plurality of buttons, thereby realize controlling of load manyly.

The concrete course of work of the utility model is as follows: the button of all control colleague loads is arranged on many ground as required, before hand touches the button, supply voltage is by step-down, after rectification, filtering, the voltage stabilizing, the control end that makes SCR is a high level, and the positive cathode circuit of SCR is obstructed, so SCR is in accurate conducting state; When pressing for the first time arbitrary button, direct current signal forms the loop by KA, D3, D1, SR1, and KA is in parallel with R2, and KA gets electric, and KA-1, KA-2 is all closed, and load gets electric work, and behind the release button, SCR is conducting also, and this moment, the voltage of KA passed through resistance R 3 acquisitions; When pressing for the second time arbitrary button, SCR is conducting still, the SCR major loop by D1, being touched the button constitutes, R3 is by short circuit, the KA dead electricity, KA-1, KA-2 disconnects, thus load is disconnected, and does not work, this moment, circuit was got back to initial condition again, so repeatedly.Thereby the purpose of reached the same load of a plurality of button controls, promptly how same load realization being controlled.

The reduction voltage circuit 1 of the utility model embodiment 2 adopts electric capacity to reduce circuit, sees Fig. 3, and concrete operation principle is with embodiment 1.

By Fig. 2, Fig. 3 as can be known, the button of load of the present utility model and control load is not in same loop, and the button both end voltage is very low direct voltage, so the equal safety relatively of the installation of button and operation, eliminated accident potential.Entire circuit of the present utility model can be arranged in the housing of button SB1, as shown in Figure 4, housing has the power supply exit, load wiring end ab, the terminals cd of other button, when the button that is connected on many ground connects, only need join with two lines and two wiring of SB1 (c, d), thus reach to same load carry out how controlling, the easy-to-install purpose.Circuit structure of the present utility model is simple, and is reliable and economical and practical.

Claims

1, a kind of electronic multi-link switch, include housing, it is characterized in that: have the reduction voltage circuit (1), current rectifying and wave filtering circuit (2), relay on-off control circuit (3) and the relay circuit (4) that connect successively that are arranged in the housing, the normally opened contact KA-1 of relay K A is serially connected in the load circuit (5), wherein:

A, relay on-off control circuit (3) are made of button SB1, relay normally open contact KA-2, resistance R 1, R2, R3, diode D1, D2, D3 and controllable silicon SCR; After joining, the end of SB1 and the end of KA-2 connect an output of current rectifying and wave filtering circuit (2), the other end first via of SB1 is joined by the control utmost point of D2 and SCR, the second tunnel negative electrode by D1 and SCR joins, Third Road joins by resistance R 2 another output with current rectifying and wave filtering circuit (2), also be connected to resistance R 2 between the control utmost point of SCR and negative electrode, the negative electrode of SCR is by being joined by the branch road of R3, D3 parallel connection and the other end of KA-2;

The two ends of b, button SB1 1 above button in parallel.

2, electronic multi-link switch according to claim 1 is characterized in that: housing is button SB ₁Housing.

3, electronic multi-link switch according to claim 1 and 2 is characterized in that: reduction voltage circuit (1) can be transformer reduction voltage circuit (11), also can be capacity voltage dropping circuit (12).