CN2148392Y

CN2148392Y - High-power touch electromagnetic switch

Info

Publication number: CN2148392Y
Application number: CN 92221323
Authority: CN
Inventors: 蒋任奇
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-09-17
Filing date: 1992-09-17
Publication date: 1993-12-01
Anticipated expiration: 2002-09-17

Abstract

The utility model discloses an industrial or civil electromagnetic high-power touch switch, which belongs to the technical field of electric switches. The switch is characterized in that an electromagnetic mechanical self-locking device is designed. The action of an electromagnet is controlled by an electronic circuit, and the electromagnet starts the mechanical self-locking device to carry out the action of switching on and switching off. The electronic circuit is controlled by a sensing signal generated by the touching of one piece of sheet metal by hand. Every time the contactor of the mechanical self-locking device is apically pressed, the control switch acts once. So, every time the sheet metal on the switch panel is touched by hand, the switch acts once, without the need to switch key or press button by hand. The utility model can be used in occasions with high-power and multi-channel switches.

Description

High-power touch electromagnetic switch

A kind of industry or civilian high-power touch electromagnetic switch of being used for belongs to the appliance switch technical field.

Present industry and civil electric appliance switch, pileup type and button two classes are generally arranged, its structure mainly is made of contact, spring, push-key or knob, implement switch motion, by manually finishing, owing to the key of staff console switch, turn round dangerously, the key of control switch is turned round and is exposed neither attractive in appearancely, also takes up room.

The purpose of this utility model provides a kind of power frequency component by the induction of staff soft-touch control extexine and controls high-power touching electronic switch.

Be described in detail content of the present utility model below in conjunction with accompanying drawing:

The utility model is by electronic circuit, the electromagnetic mechanical self-locking device, the touch panel of the bakelite box of electromagnetic type self-locking device and electronic circuit being installed and being covered on box constitutes, accompanying drawing 5 is electromagnetic mechanical self-locking device installation diagrams, there is coil 10 on the right side among the figure, parallel with coil 10 upper ends have an iron plate 11, iron plate 11 is supported and fixed on the printed circuit board (PCB) 14 by support 12, iron plate 11 keeps one section space by stage clip 13 location maintenance levels and with coil 10 upper ends and does not contact, the left distal end of iron plate 11 is corresponding with the contact 17 of mechanical self-latching device 16 upper ends, the left side in the drawings, with mechanical self-latching device 16 is connected as a single entity a contact 15 arranged, it is corresponding with the contact 18 on being contained in circuit board and constitute and open or close.When coil 10 produces magnetic force during by electric current, iron plate 11 is attracted to down, and behind the removal electric current, iron plate 11 is pulled to by stage clip 13 to reset; Two contacts are connected with the controlled switch circuit, when iron plate 11 when pressing down, contact 17 on the iron plate top roof pressure self-locking device 16, the internal mechanism of self-locking device 16 makes and moves on its lower contact 15 and contact 18 closures, the controlled switch circuit is connected, after iron plate 11 is removed, the self-locking device self-locking, contact 15 is still closed with contact 18, when iron plate 11 once more during roof pressure contact 17, contact 15 and 18 disconnects, and switching circuit is obstructed, and the electromagnetic mechanical self-locking device is installed on the printed circuit board 14, the anode that coil 10 is connected on the unidirectional controllable silicon S CR in the electronic circuit as shown in Figure 6, touch sheet metal 2 among the figure and be embedded on the panel 1 of bakelite box 6, after hand touched it, the human-induced signal passed through BG ₁Amplify, through D ₆Trigger unidirectional controllable silicon S CR conducting, its anode current starts iron plate 11 actions by coil 10, burns BG for a long time by electric current for avoiding coil ₁Signal after the amplification is simultaneously through D ₇To C ₃Charging, BG ₂Conducting is saturated, makes BG ₁Collector voltage drops to 0.7 volt, and SCR is ended, cutout in the coil 10, C ₃Last electric charge is through R ₄After having put, BG ₂End again, system restoration is normal, waits for that staff touches sheet metal 2 once more, and 12 is mechanical self-latching device switches among the figure, R ₂Be the external circuit load, the 3rd, neon lamp, when the self-locking device switch closure, neon lamp 3 extinguishes, and neon lamp 3 is bright during disconnection, the position of indication soft-touch control at night, D _1～D4, WD ₁, C ₄Be regulator rectifier circuit, R ₃It is safe isolation resistance, touch device is by touch panel 1, the bakelite box 6 that electromagnetic mechanical self-locking device and electronic circuit are installed constitutes, shown in accompanying drawing 1～4, panel 1 is oval, the centre is embedded with a circular metal plate 2, open a small sircle hole in the middle of the sheet metal 2, be injected with the card base 4 of 4 symmetries around the inboard of panel 1, it sticks into the lug 5 of 4 protrusions on the box body 6, cover bakelite box 6, neon lamp 3 of welding on the printed circuit board (PCB) 14 in the box 6, it just in time withstands in the small sircle hole of panel 1, and the lug 9 that the port both sides of box 6 are injected with two symmetries has by dress hole 8 above it, and there is binding post a in the outside of box 6, b, c, d, wherein two connect to input power supply, two switches that connect to controlled circuit.

The utility model has the advantages that and to control high-power and switch arbitrary load, ability impulse current, and may command variable connector, the state that opens or closes has the low-light indication, because switching device is in closed state, so help moistureproof and dustproof, handsome in appearance, switch is convenient.

Accompanying drawing 1 is the end view of touch panel 1;

Accompanying drawing 2 is front views of touch panel 1;

Accompanying drawing 3 is front views of bakelite box 6;

Accompanying drawing 4 is end views of bakelite box 6;

Accompanying drawing 5 is installation diagrams of electromagnetic and mechanical self-locking device;

Accompanying drawing 6 is electronic circuit schematic diagrams.

Touch panel 1 of the present utility model, bakelite box 6 are all used the plastics single injection-molded, electronic circuit and electromagnetic mechanical self-locking device all are installed on the printed circuit board 14, they all are placed in the small-sized bakelite box 6, make according to aforementioned figures, are easy to implement the utility model.

Claims

1, a kind of high-power touch electromagnetic switch, it is characterized in that bakelite box 6 internal fixation have a printed circuit board 14, electronic circuit is arranged on printed circuit board (PCB) 14 and be fixed with mechanical self-latching device 16, coil 10, parallel with coil 10 upper ends have an iron plate 11, iron plate 11 is supported and fixed on the printed circuit board (PCB) 14 by support 12, iron plate 11 keeps one section space by stage clip 13 location maintenance levels and with coil 10 upper ends and does not contact, the left distal end of iron plate 11 is corresponding with the contact 17 of mechanical self-latching device 16 upper ends, with mechanical self-latching device 16 is connected as a single entity a contact 15 arranged, it is corresponding with the contact 18 on being contained in circuit board and constitute switch, 1 capping of box 6 usefulness panels, sheet metal 2 of the middle-end setting-in of panel 1, it connects the input to electronic circuit.

2, by the described touch electromagnetic switch of claim 1, there is the lug 5 of 4 symmetries in the port outside that it is characterized in that bakelite 6, outside one side of cassette holder has binding post a, b, c, d, there are 2 lugs 9 of symmetry the both sides of box port, installing hole 8 is arranged respectively on the lug 9, the panel 1 of capping bakelite box 6 is elliptical shapes, be injected with the card base 4 of 4 symmetries around it is inboard, circular metal plate 2 of middle part setting-in, have a small sircle hole in the middle of it, small sircle hole is aimed at the neon lamp 3 on box 6 internal printed circuit board 14.

3, by the described touch electromagnetic switch of claim 1, it is characterized in that controlling the electronic circuit of electromagnetic switch by sheet metal 2, touch signal amplifier BG ₁, unidirectional controllable silicon S CR, coil 10, coil 10 protective circuit D ₇, C ₃, R ₄, BG ₂And regulator rectifier circuit D ₁～D ₄, WD ₁, C ₄Constitute, sheet metal 2 connects to electronic circuit BG ₁Input, coil 10 is connected on the anode of controllable silicon SCR.