CN2755832Y

CN2755832Y - Safety switch on wall

Info

Publication number: CN2755832Y
Application number: CN 200420076583
Authority: CN
Inventors: 陈炜明
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-09-14
Filing date: 2004-09-14
Publication date: 2006-02-01
Anticipated expiration: 2014-09-14

Abstract

The utility model relates to a safety switch on a wall. A connecting box and a control box are connected through a control conducting wire to form the utility model, wherein the connecting box is positioned at a high position of a wall. Commercial power is communicated from A and B points, and C and D points are connected with a lamp fitting which is controlled. The control box is arranged at a proper position which can be touched by hand at the lower part of a wall. A control signal is outputted from G and H points to be connected with E and F points of the connecting box through a conducting wire. A bistable electronic switch in the connecting box is isolated and controlled. The usage is safe. An accident of electric shock can not happen. A plurality of control boxes are connected in parallel, and one lamp can be easily controlled from a plurality of positions. The utility model has the advantages of simple and convenient installation, wires saving and safety.

Description

Safety switch on wall

Affiliated technical field

The utility model relates to a kind of switch on wall that light fixture is carried out switch control, especially has to avoid getting an electric shock the switch on wall of handling safety.

Background technology

At present, known switch on wall all is directly to be series in the power supply circuits of light fixture (as shown in Figure 1), and a, b are the mains electricity input end, and K is a switch, and L is a light fixture, and the break-make control light fixture L by K switch lighting and extinguishes.But often having following problem in the application of reality takes place:

1. because switch is directly to be series among the civil power loop, and switch is charged,, very easily cause electric shock accidents in case the switch breakage exposes, peels off or meet with humidity from wall.

2. switch often uses easily and damages, because switch is charged, must cuts off general supply by the professional after the damage and repair or replace, and influences work, life.

3. when the finishing wiring, because power line and light fixture are aloft, switch is at lower, and electric wire must make a circulation to switch, not only lays inconvenience, more causes expending of wire rod.All the more so when a lamp is carried out the point control of many ground, such as about the stair, inside and outside the passageway, the most basic two places control just need be selected two double control switches for use, (as shown in Figure 2), the wiring trouble, if distance is far away, wire rod expends bigger.

Summary of the invention

In order to overcome existing switch on wall deficiency in actual applications, the utility model provides a kind of Safety switch on wall, and use will not cause electric shock accidents, and simple installation, saves wire rod.

The technical scheme that its technical problem that solves the utility model adopts is: switch is divided into terminal box and control box two parts, and terminal box directly inserts civil power, and control box then is operated in the power utilization environment of relative and people's safety.(as shown in Figure 3) the bi-stable electronic switch is arranged in the terminal box, its input contact A, B, output contact C, D and control line contact E, F.Shift knob only is set, its output contact G, H on the control box.Terminal box inserts civil power in the wall eminence, and light fixture L inserts nearby, and control box then is installed on the appropriate location that staff touches under the wall.Control is light fixture the time, and the control signal that control box sends is transferred to E, the F end of terminal box by contact G, H by lead, enters the bi-stable electronic switch, lighting and extinguish by bi-stable electronic controlling switch lamp tool.Bi-stable electronic switch in the terminal box is if power with the extremely low capacitor step-down rectifier circuit of idle power consumption, then adopt photoelectrical coupler to isolate, (as shown in Figure 5) control signal of E, F end input enters photoelectrical coupler IC1, photoelectrical coupler IC1 promptly exports a low pulse, and the bi-stable electronic switch just overturns once, relay J 1 adhesive, light fixture is lighted, by once just overturning once, relay J 1 discharges again again, and light fixture extinguishes.Bi-stable electronic switch in the terminal box is if use transformer-supplied, then control end with mains isolation, can adopt any flip-flop circuit commonly used, the direct access control box of control end gets final product.For the ease of installing and maintenance, each input and output contact on the terminal box can all be fixed on the pedestal of terminal box, and the bi-stable electronic switching circuit in the terminal box is plugged in the box on the pedestal as a whole.In order to adapt to the needs of different occasions, the bi-stable electronic switching circuit can be provided with one or more groups, and separate existence is independent of each other.

The beneficial effects of the utility model are: use to be perfectly safe, easy to maintenance, the finishing wiring is quick, and material-saving saves time.Even if shift knob exposes in the use, damage, but still hot line job, replacing can not got an electric shock.Circuit damages in the terminal box, one group of integral body damaging can be taken down, and does not influence other controlled light fixture.The used electric current of switch control is very little, so terminal box and control box can connect with little lead during installation wiring, can save wire rod, because lead is little, the access contact is handled easily also.When how controlling a light fixture, only need arbitrarily and connect a plurality of control boxes (dotted portion as shown in Figure 3) and just can reach instructions for use at the control contact of terminal box.Shift knob on the control box can use and touch button, operates comfortable.

Description of drawings

Fig. 1: known switch on wall practical application schematic diagram.

Fig. 2: a lamp wiring schematic diagram is controlled in known wall double control switch two places.

Fig. 3: the utility model practical application schematic diagram.How dotted line is during as light fixture of point control and the control box and the control line that connect.

Fig. 4: the utility model control section circuit theory diagrams.

Fig. 5: bi-stable electronic switching circuit schematic diagram.

Embodiment

The utility model is described in further detail referring to Fig. 4 Fig. 5.In Fig. 5, A, B end is civil power input contact, and C, D end inserts contact for light fixture, and E, F end inserts contact for pilot.Capacitor C 1, resistance R 1, rectifier diode D1-4 form capacitor step-down rectifier circuit, make idle power consumption extremely low, use for after voltage stabilizing didoe D5 voltage stabilizing and capacitor C 2 filtering whole bistable circuit.Resistance R 2, R3, R4, R5, R6, capacitor C 4, C5, diode D6, D7, D8, triode BG1, BG2,1 group of structure bistable circuit of relay J, break-make by relay J 1, reach the purpose of lighting and extinguishing light fixture, it is that switch working state is indicated that resistance R 7 connects LED, LED extinguished when the bi-stable electronic switch disconnected, and LED is lighted when closed.The base stage of capacitor C 3 one end ground connection one termination triode BG1 guarantees that the bi-stable electronic switch is in off-state when initial power-up.IC1 is a photoelectrical coupler, plays the transmission of control signal and isolates civil power.R9, R10 are the high resistance measurement that is not less than 1 megaohm, are electrically connected with faint electric current with the city and charge to C6 by rectifier diode D9, because resistance is high, can guarantee the safe in utilization of control box.The D10 limiting capacitance C6 amplitude of charging.Control section of the present utility model (as Fig. 4) is actual to be exactly a shift knob, and its contact G, H connect with contact E, F by lead.When light fixture is carried out switching manipulation, press button, the accumulate of capacitor C 6 the insides enters photoelectrical coupler IC1 by current-limiting resistance R11 and discharges, photoelectrical coupler IC1 promptly exports a low pulse, and the bi-stable electronic switch just overturns once, relay J 1 adhesive, light fixture is lighted, by once just overturning once, relay J 1 discharges again again, and light fixture extinguishes.

Claims

1. Safety switch on wall, cooperate control box to form by terminal box, it is characterized in that: the bi-stable electronic switch is housed in the terminal box, civil power input contact is set, light fixture inserts contact, and pilot inserts contact, and shift knob is housed on the control box, the control output contact is set, and the output contact of control box links to each other with pilot access contact on the terminal box by lead.

2. Safety switch on wall according to claim 1, it is characterized in that: the pilot of bi-stable electronic switch inserts contact (F) and is connected in turn with input, resistance R 11, capacitor C 6, the access contact (E) of optical coupler IC1, the negative pole of voltage stabilizing didoe D10 links to each other with the positive pole of capacitor C 6, the negative pole of rectifier diode D9, the positive pole of voltage stabilizing didoe D10 links to each other with negative pole, the resistance R 9 of capacitor C 6, the positive pole of rectifier diode D9 links to each other with resistance R 10, and the other end of resistance R 9, R10 and civil power input contact (A, B) also connect.