CN2407508Y - Multiple linkage and control switch - Google Patents

Abstract

The utility model discloses a multiple and multi-control switch. In the utility model, a power supply line is used as a signal line; the output end of a multichannel key encoder is connected to an originating carrier wave conversion circuit of which the output end receives a terminating carrier wave conversion circuit by the signal line; the output end of the terminating carrier wave conversion circuit is connected with the input end of a multichannel decoder; the back part of each output channel of the multichannel decoder is orderly connected with a bistable memory circuit, a display device and a load driving circuit. The utility model has the advantage of simple line structure, can be mutually changed and compatible with traditional switches, can realize the homoenergetic control of controllers at any places and can display the switching conditions of load on controllers at a plurality of places.

Description

Multi-joint many control electrical switchgears

The utility model relates to a kind of switching device, can carry out joint control (multichannel control) to a plurality of power devices in a plurality of places.

Along with science and technology development, no matter in family or in places such as office, factories, the electrical equipment of use is more and more.Like this, the open and close operation to electrical equipment just seems very loaded down with trivial details.In most cases, different appliance switches, wants to check and controlling electric device such as being in respectively in the different rooms not at same position like this, and is just more inconvenient.If all switches are concentrated on same place, trouble then is installed, and does not have the local uncontrollable electrical equipment of switch at other.If a plurality of control switchs are set simultaneously in a plurality of places, the people can be controlled all electrical equipment in each place, then required wiring is very complicated.

The purpose of this utility model is exactly in order to overcome the above problems, a kind of multi-joint many control electrical switchgears are provided, line construction is simple, can realize the equal load that can control on a plurality of ground square controller of controller of any old place, and any one controller all can show the on off operating mode of a plurality of ground square controller.Construction need not to increase holding wire, can exchange with conventional switch, compatibility.

The utility model realizes that the scheme of above-mentioned purpose is: a kind of multi-joint many control electrical switchgears, comprise multichannel key encoder, multichannel decoder, a plurality of load driving circuits and holding wire, the input of each load driving circuits links to each other with the different output channels of multichannel decoder respectively; It is characterized in that: described holding wire is a power line, the output of described multichannel key encoder is connected to the carrier transformation circuit of making a start, the output of the described carrier transformation circuit of making a start is received receiving end carrier transformation circuit by holding wire, receiving end carrier transformation circuit ' output link to each other with the input of multichannel decoder; All be connected to bistable state memory circuit, display unit, load driving circuits after each output channel of described multichannel decoder successively.

Adopt the beneficial effect of above scheme: by increasing the receiving end and the carrier transformation circuit of making a start, control signal is become carrier signal, thereby can be loaded on the power line, can adopt power line to do holding wire like this, wiring is just very simple like this, does not need to increase in addition holding wire during construction.Because wherein key encoder and decoder all are multichannel, so just can be implemented in the on off operating mode that a plurality of electrical equipment were controlled and shown in a place simultaneously.

Fig. 1 is the multi-joint many control electrical switchgear circuit diagrams of the utility model.

Fig. 2 is the multi-joint many control electrical switchgear application example schematic diagrames of the utility model.

Also in conjunction with the accompanying drawings the utility model is described in further detail below by specific embodiment.

Embodiment one: see Fig. 1, shown in multi-joint many control electrical switchgears comprise multichannel key encoder 2, multichannel decoder 3, a plurality of load driving circuits 5 and holding wire, the input of each load driving circuits 5 links to each other with the different output channels of multichannel decoder 3 respectively.Described holding wire is to utilize power line to substitute, the output of described multichannel key encoder 2 is connected to the carrier transformation circuit 1 of making a start, the output of the described carrier transformation circuit 1 of making a start by holding wire receive receiving end carrier transformation circuit 1 ', receiving end carrier transformation circuit 1 ' output link to each other with the input of multichannel decoder 3; All be connected to bistable state memory circuit 6, display unit 4, load driving circuits 5 after each output channel of described multichannel decoder 3 successively.

By among the figure obviously as seen, wherein encoder 2 and decoder 3 usefulness hardware circuits realization.

The described carrier transformation circuit 1 of making a start comprises keyed oscillator 11, power amplification circuit 12, the intermediate frequency transformer T1 that links to each other successively, and wherein keyed oscillator 11 is imported the output of termination key encoders 2, the output terminated signal lines of intermediate frequency transformer T1; Described receiving end carrier transformation circuit 1 comprises the second intermediate frequency transformer T2, pre-amplification circuit 13, filter circuit 14, the shaping circuit 15 that links to each other successively, the input terminated signal lines of the second intermediate frequency transformer T2 wherein, the output termination multichannel decoder 3 of shaping circuit 15.

Described display unit 4 can be with light-emitting diode or liquid crystal etc.; Described load driving circuits 5 comprises relay J, and a plurality of button K (corresponding each passage has) are arranged on the key encoder 2.

Wherein multichannel key encoder 2 can adopt ready-made integrated circuit (IC1 among the figure), as LC2190.By pressing its button K, the VT pin of IC1 output respective coding signal, the carrier transformation circuit of forming via keyed oscillator 11, power amplifier 12 and transformer T1 1 of making a start is added to signal on the power line.Each controller (comprising this controller that transmits control signal) that is connected on the same power line is all received this code signal from power line, delivering to multichannel decoder 3 via the receiver signal carrier transformation circuit 1 ' of the second intermediate frequency transformer T2, pre-amplification circuit 13, filter circuit 14, shaping circuit 15 compositions (mainly is made up of IC2, model is LC2200) decipher, respective channel is exported a pulse, make the state " upset " of bistable state memory circuit 6, and luminous by bistable circuit 6 driven for emitting lights diodes (being display unit 4).This process all takes place simultaneously to each controller in the consolidated network, be that each controller respective channel light-emitting diode is all shinny, show that this passage is in opening state, the load driving circuits 5 that links to each other with this passage then drives the relay J adhesive, thereby makes electrical appliance L (L1 among the figure or the L2 that connects thereon ... L5 etc.) energized.When wanting power cutoff, press original coding key K again, signal can make the state of the bistable state memory circuit 6 of controlled switch overturn once more through same path, make relay discharge electrical appliance L power cutoff.Like this, can on any one controller, carry out open and close control to any one electrical equipment.That is: press the coding key K of any one controller in the network, its corresponding passage will turn on and off the power supply of the electrical appliance L that is controlled.Simultaneously the respective channel indicator light is bright or go out on each controller.Therefore, can realize the equal load L that can control a plurality of ground square controller of controller of any old place, any one controller all can show the load L on off operating mode of a plurality of ground square controller.

As mentioned above, encoder 2 and decoder 3 usefulness hardware circuits are realized in the last example.Obviously, encoder 2 and decoder 3 can realize that also such as the coding, the decoder ic that replace going up with a single-chip microcomputer in the example, the suitable software that only needs to pack into can be realized same function with software in single-chip microcomputer.

This device need not to set up in addition holding wire, just can realize multiple function, and function expansion, engineering construction, maintenance all be very easy to, and antijamming capability is strong, but large tracts of land is promoted the use of.

Claims (3)

1. multi-joint many control electrical switchgears, comprise multichannel key encoder (2), multichannel decoder (3), a plurality of load driving circuits (5) and holding wire, the input of each load driving circuits (5) links to each other with the different output channels of multichannel decoder (3) respectively; It is characterized in that: described holding wire is a power line, the output of described multichannel key encoder (2) is connected to the carrier transformation circuit (1) of making a start, described output of making a start carrier transformation circuit (1) is received receiving end carrier transformation circuit (1 ') by holding wire, and the output of receiving end carrier transformation circuit (1 ') links to each other with the input of multichannel decoder (3); All be connected to bistable state memory circuit (6), display unit (4), load driving circuits (5) after each output channel of described multichannel decoder (3) successively.

2. multi-joint many control electrical switchgears as claimed in claim 1, it is characterized in that: the described carrier transformation circuit (1) of making a start comprises keyed oscillator (11), power amplification circuit (12), the intermediate frequency transformer T1 that links to each other successively, wherein keyed oscillator (11) is imported the output of termination key encoder (2), the output terminated signal lines of intermediate frequency transformer T1; Described receiving end carrier transformation circuit (1) comprises the second intermediate frequency transformer T2, pre-amplification circuit (13), filter circuit (14), the shaping circuit (15) that links to each other successively, the input terminated signal lines of the second intermediate frequency transformer T2 wherein, the output termination multichannel decoder (3) of shaping circuit (15).

3. multi-joint many control electrical switchgears as claimed in claim 1 or 2, it is characterized in that: described display unit (4) is a light-emitting diode; Described load driving circuits (5) comprises relay J, and a plurality of button K are arranged on the key encoder (2).