CN103066979B - Solid explosion-proof switch - Google Patents
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- CN103066979B CN103066979B CN201310010771.4A CN201310010771A CN103066979B CN 103066979 B CN103066979 B CN 103066979B CN 201310010771 A CN201310010771 A CN 201310010771A CN 103066979 B CN103066979 B CN 103066979B
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Abstract
The invention provides a solid explosion-proof switch, and relates to an electronic explosion-proof switch. The solid explosion-proof switch is mainly formed by a light-operated module, a button and a circuit board. An infrared transmitting hole, an infrared receiving hole and a square hole slide groove are formed in the light-operated module, and the square hole slide groove perpendicularly penetrates between the infrared transmitting hole and the infrared receiving hole. An infrared transmitting tube is mounted in the infrared transmitting hole, and an infrared receiving tube is mounted in the infrared receiving hole. The button and a slide rod are connected integrally. The slide rod stretches into the square hole slide groove of the light-operated module, and a light pervious hole is formed in the front portion of the slide rod. The light pervious hole, the infrared transmitting hole and the infrared receiving hole are arranged in a staggered mode. Through the light-operated module, the button and the slide rod, a light-operated signal can be operated to trigger turn-on and turn-off of the switch, and non-contact turn-on or turn-off can all be achieved in a control loop and a load loop. Due to the fact that the switch is packaged by epoxy resin, the switch can have explosion-proof and water proof multiple functions. The solid explosion-proof switch is safe, reliable, long in service life, and is suitable for being used in special environments such as a fireproof environment, an explosion-proof environment and a waterproof environment.
Description
Technical field
The present invention relates to electronic switch, be related specifically to a kind of electronic explosion-proof switch.
Background technology
Current, electronic switch is used widely, and greatly facilitates work and the life of people.The main feature of electronic non-contact switch does not have movable contact component, and do not occur electric arc or spark during turn-on and turn-off, be swift in motion, the life-span is long, and reliability is high, is applicable to particular surroundings uses such as preventing fires, explosion-proof, moistureproof.
Chinese patent notification number 2107736U discloses one " Contactless explosion-proof switch ", be connected between the control pole G of ac thyristor and anode A by tongue tube by current-limiting resistance, permanent magnet is driven to shift one's position by knob by wearing rod, in order to control being contacting and separating of tongue tube, reach the conducting or cut-off that control bidirectional triode thyristor, make switching circuitry connect or open, switch deciliter time no-spark produce.The feature that technique is simple although this utility model has, cost is low, but the tongue tube of its application is contact switch, the glass shell of tongue tube easily breaks, when the glass shell of tongue tube breaks, switching damage will be made maybe can not to make flame-proof switch use, and also there is the shortcoming of poor reliability in tongue tube.
Chinese patent Authorization Notice No. CN 2565202Y discloses the utility model patent of one " Zero voltage contactless explosion-proof switch ", be made up of semiconductor device pressure sensor, amplitude limiter circuit, voltage follower, comparator, trigger, coupler, zero cross detection circuit and power electronic element, a voltage signal is exported by making it by piezoelectric ceramic, be used within its signal voltage is limited to 0.7V by amplitude limiter circuit trigger switch open and close, achieve control loop and load circuit system without deaerator.This utility model adopts pressure signal to trigger, solve the drawback still having mechanical contact in control circuit, but the shortcoming existed is that circuit easily produces false triggering, because piezoelectric ceramic has highstrung characteristic, can sound wave and faint mechanical oscillation be converted to the signal of telecommunication, the signal amplitude that thunder, vehicle noise and ground vibration produce will make the comparator of circuit hard to distinguish between the true and false, and therefore, this switch is easily interfered and causes to open by mistake and open or cut out by mistake.
Summary of the invention
The present invention be to provide a kind of safe and reliable, not fragile, the Contactless explosion-proof switch opening by mistake and open or close by mistake can not be produced, be applicable to the particular surroundingss such as fire prevention, explosion-proof, waterproof and use.
A kind of solid explosion-proof switch of the present invention, form primarily of switch panel (11), light-operated assembly (12), button (15), slide bar (17), helical spring (14), wiring board (1), electronic component and back cover (10), wherein, light-operated assembly (12) and electronic component are arranged on wiring board (1), wiring board (1) is arranged in back cover (10), and back cover (10) is arranged on switch panel (11), there is circular hole at the center of switch panel (11), and there is the screw for installing back cover (10) inner side of switch panel (11), light-operated assembly (12) is in rectangular structure, light-operated assembly (12) there is infrared emitting hole (6), infrared receiving aperture (8) and square hole chute (7), infrared emitting hole (6) and infrared receiving aperture (8) are linearly corresponding to be arranged, square hole chute (7) passes perpendicularly through between infrared emitting hole (6) and infrared receiving aperture (8), installation infrared line transmitting tube (VD4) in infrared emitting hole (6), infrared emission tube (VD4) points to infrared receiving aperture (8), installation infrared line receiving tube (VD5) in infrared receiving aperture (8), infrared receiver tube (VD5) is towards infrared emitting hole (6), button (15) and slide bar (17) are connected as a single entity, button (15) is circle structure, button (15) stretches out from the center hole of switch panel (11), slide bar (17) is cube structure, slide bar (17) extend in the square hole chute (7) of light-operated assembly (12), the front portion of slide bar (17) is made to be inserted between infrared emitting hole (6) and infrared receiving aperture (8), there is loophole (13) front portion of slide bar (17), loophole (13) and shifting to install between infrared emitting hole (6) and infrared receiving aperture (8), when pressing the button (15), loophole (13) and infrared emitting hole (6) and infrared receiving aperture (8) linearly coordination, light is passed through, when button (15) sets back, the light tight body of rod of slide bar (17) is interposed between outside line launch hole (6) and infrared receiving aperture (8), stop that light passes through, the back-moving spring that helical spring (14) is button (15), helical spring (14) is arranged on the rear portion of slide bar (17), the compression travel of helical spring (14) slide bar (17) tail end to light-operated assembly (12) end face between,
The electronic component being arranged on wiring board (1) comprises: rectifier diode a(VD1), rectifier diode b(VD2), voltage-stabiliser tube (VD3), dropping resistor (R1), current-limiting resistance (R2), release resistance (R3), be close to road resistance a(R4), be close to road resistance b(R5), drive resistance (R6), decompression capacitor (C1), filtering capacitor (C2), pulse capacitor (C3), anti-interference condenser (C4), d type flip flop (IC), triode (VT) and bidirectional triode thyristor (VS), the pin leads of infrared emission tube (VD4) and infrared receiver tube (VD5) is connected on wiring board (1), the connected mode of circuit is:
rectifier diode a(VD1) anode hold with being connected to, rectifier diode a(VD1) negative electrode be connected to rectifier diode b(VD2) anode, rectifier diode b(VD2) negative electrode be connected respectively to the positive pole of the vdd terminal of d type flip flop (IC), the positive pole of anti-interference condenser (C4), the collector electrode of triode (VT), the negative electrode of infrared receiver tube (VD5), the anode of infrared emission tube (VD4), the negative electrode of voltage-stabiliser tube (VD3) and filtering capacitor (C2); The negative pole of filtering capacitor (C2) and the anode of voltage-stabiliser tube (VD3) are held with being connected to; The negative electrode of infrared emission tube (VD4) is connected to one end of current-limiting resistance (R2), and the other end of current-limiting resistance (R2) is held with being connected to; The anode of infrared receiver tube (VD5) is connected respectively to one end of release resistance (R3) and one end of pulse capacitor (C3), the other end of release resistance (R3) is held with being connected to, the other end of pulse capacitor (C3) is connected respectively to the base stage of triode (VT) and is close to road resistance a(R4) one end, be close to road resistance a(R4) the other end hold with being connected to; The emitter of triode (VT) is connected respectively to the negative pole of anti-interference condenser (C4), the CP Duan Hebang road resistance b(R5 of d type flip flop (IC)) one end, be close to road resistance b(R5) the other end hold with being connected to; The S end of d type flip flop (IC), R end and VSS end hold with being connected to, and the D of d type flip flop (IC) end is connected to d type flip flop (IC)
end; The Q end of d type flip flop (IC) is connected to the one end driving resistance (R6), and drive the other end of resistance (R6) to be connected to the control pole of bidirectional triode thyristor (VS), the negative electrode of bidirectional triode thyristor (VS) is held with being connected to; Circuit is by terminal stud a(L1), terminal stud b(L2) and terminal stud c(N1) be connected on outer circuit, the anode of bidirectional triode thyristor (VS) is connected to terminal stud b(L2) on; Rectifier diode a(VD1) negative electrode and rectifier diode b(VD2) anode be connected to one end of dropping resistor (R1), the other end of dropping resistor (R1) is connected to one end of decompression capacitor (C1), and the other end of decompression capacitor (C1) is connected to terminal stud c(N1) on; Ground end is connected to terminal stud a(L1) on.
In the present invention, button (15) has bulge loop (16), bulge loop (16) makes button (15) spacing on switch panel; The width of slide bar (17) is greater than the diameter of infrared emitting hole (6) and infrared receiving aperture (8).
In the present invention, adopt epoxy resin wiring board (1) and electronic package in back cover (10), can ensure, when contingency switch itself damages, electronic component can not be made to smolder, burst, thus combustible and explosive area breaking out of fire and explosion accident can not be caused.
In foregoing circuit, dropping resistor (R1) and decompression capacitor (C1) form reduction voltage circuit, rectifier diode a(VD1) and rectifier diode b(VD2) form Half bridge rectifier circuit, filtering capacitor (C2) and voltage-stabiliser tube (VD3) form filter circuit of pressure-stabilizing, ~ 220V power supply is after step-down, rectification and voltage regulation filtering, the circuit be supplied in switch as working power uses, in circuit, dropping resistor (R1) and decompression capacitor (C1) carry out series connection and use, and decompression capacitor (C1) can be avoided to be subject to rush of current and to damage, infrared emission tube (VD4) and infrared receiver tube (VD5) is used to realize light control operations, pulse capacitor (C3) is set in circuit, light control operations signal is made to become pulse signal, simultaneously, pulse capacitor (C3) also has stabilization effect, because after pulse capacitor (C3) produces a pulse, capacitor (C3) must be discharged electric charge by release resistance (R3) just can produce pulse again, at this moment, any shake time action button (15) all can not make pulse capacitor (C3) produce pulse, d type flip flop (IC) connects into bistable trigger mode, when there being rising edge pulse to be input to the CP end of d type flip flop (IC), the Q output level of d type flip flop (IC) will be made to overturn, control bidirectional triode thyristor (VS) conducting or cut-off, at the CP input of d type flip flop (IC), anti-interference condenser (C4) is set, the CP input of d type flip flop (IC) is made to be low level to after capacitor (C4) charging, only have after the CP input of d type flip flop (IC) becomes low level, rising edge pulse just can make the Q output level of d type flip flop (IC) overturn, the Q output level of d type flip flop (IC) all can not be made to overturn in any interference signal of capacitor (C4) in the charging interval, stable being operated in of switch is opened or closed condition.Between the switch operating period, as switch is in off state, when need open switch, click button (15), the loophole (13) making slide bar (17) anterior and infrared emitting hole (6) and infrared receiving aperture (8) linearly coordination, the infrared light emission of infrared emission tube (VD4) is on infrared receiver tube (VD5), make infrared receiver tube (VD5) reverse-conducting, pulse capacitor (C3) is made to produce the base stage that pulse signal is input to triode (VT), make triode (VT) conducting, anti-interference condenser (C4) is by triode (VT) repid discharge, the CP input of d type flip flop (IC) is made to obtain rising edge triggering signal, the Q output output driving current of d type flip flop (IC), by the control pole driving resistance (R6) to be input to bidirectional triode thyristor (VS), make bidirectional triode thyristor (VS) conducting, load switches on power, after release button (15), switch still keeps opening state, during as needed closing switch, again clicking button (15), the CP input of d type flip flop (IC) can be made again to obtain rising edge triggering signal and the Q output level of d type flip flop (IC) is overturn, bidirectional triode thyristor (VS) is turned off, load deenergization.
In above-mentioned invention, described load is illuminating lamp and low power electric appliance; Described external power is the mains supply of alternating current 220V.
The invention has the beneficial effects as follows: utilize light-operated assembly (12) and button slide bar (17) operation optically-controlled signal to carry out trigger switch turn-on and turn-off, structure is simple, reliable operation, switch generation can not be made to open by mistake and open or miss shutoff operation; Use bidirectional triode thyristor (VS) element, all realize contactless being switched on or switched off at control loop and load circuit, switch internal circuit does not have actuating mechanism, makes switch not fragile; Adopt epoxy encapsulation, make switch have explosion-proof waterproof multi-functional.Compared with prior art, solid explosion-proof switch safety and reliability of the present invention, longer service life, is more suitable for using in particular surroundingss such as fire prevention, explosion-proof, waterproof.
Accompanying drawing explanation
Fig. 1 is a kind of solid explosion-proof switch structure chart of the present invention.
Fig. 2 is a kind of electronic type flame-proof switch circuit diagram of the present invention.
In figure: 1. wiring board, 6. infrared emitting hole, 7. square hole chute, 8. infrared receiving aperture, 10. back cover, 11. switch panels, 12. light-operated assemblies, 13. loopholes, 14. helical springs, 15. buttons, the bulge loop of 16. buttons, 17. slide bars, 18. epoxy encapsulation layers, VD1. rectifier diode a, VD2. rectifier diode b, VD3. voltage-stabiliser tube, VD4. infrared emission tube, VD5. infrared receiver tube, R1. dropping resistor, R2. current-limiting resistance, R3. resistance is discharged, R4. road resistance a is close to, R5. road resistance b is close to, R6. resistance is driven, C1. decompression capacitor, C2. filtering capacitor, C3. pulse capacitor, C4. anti-interference condenser, IC.D trigger, VT. triode, VS. bidirectional triode thyristor, H. illuminating lamp, L1. terminal stud a, L2. terminal stud b, N1. terminal stud c.
Embodiment
In execution mode shown in Fig. 1 and Fig. 2, solid explosion-proof switch forms primarily of switch panel (11), light-operated assembly (12), button (15), slide bar (17), helical spring (14), wiring board (1), electronic component and back cover (10), wherein, light-operated assembly (12) and electronic component are arranged on wiring board (1), wiring board (1) is arranged in back cover (10), adopt epoxy resin wiring board (1) and electronic package in back cover (10), back cover (10) is arranged on switch panel (11), there is circular hole at the center of switch panel (11), and there is the screw for installing back cover (10) inner side of switch panel (11), light-operated assembly (12) is in rectangular structure, light-operated assembly (12) there is infrared emitting hole (6), infrared receiving aperture (8) and square hole chute (7), infrared emitting hole (6) and infrared receiving aperture (8) are linearly corresponding to be arranged, square hole chute (7) passes perpendicularly through between infrared emitting hole (6) and infrared receiving aperture (8), installation infrared line transmitting tube (VD4) in infrared emitting hole (6), infrared emission tube (VD4) points to infrared receiving aperture (8), installation infrared line receiving tube (VD5) in infrared receiving aperture (8), infrared receiver tube (VD5) is towards infrared emitting hole (6), the pin leads of infrared emission tube (VD4) and infrared receiver tube (VD5) is connected on wiring board (1), button (15) and slide bar (17) are connected as a single entity, button (15) is circle structure, button (15) stretches out from the center hole of switch panel (11), button (15) there is bulge loop (16), bulge loop (16) makes button (15) spacing on switch panel, slide bar (17) is cube structure, slide bar (17) extend in the square hole chute (7) of light-operated assembly (12), the front portion of slide bar (17) is made to be inserted between infrared emitting hole (6) and infrared receiving aperture (8), the width of slide bar (17) is greater than the diameter of infrared emitting hole (6) and infrared receiving aperture (8), there is loophole (13) front portion of slide bar (17), loophole (13) and shifting to install between infrared emitting hole (6) and infrared receiving aperture (8), when pressing the button (15), loophole (13) and infrared emitting hole (6) and infrared receiving aperture (8) linearly coordination, light is passed through, when button (15) sets back, the light tight body of rod of slide bar (17) is interposed between outside line launch hole (6) and infrared receiving aperture (8), stop that light passes through, the back-moving spring that helical spring (14) is button (15), helical spring (14) is arranged on the rear portion of slide bar (17), the compression travel of helical spring (14) slide bar (17) tail end to light-operated assembly (12) end face between.
The electronic component used in the present embodiment comprises: rectifier diode a(VD1), rectifier diode b(VD2), voltage-stabiliser tube (VD3), infrared emission tube (VD4), infrared receiver tube (VD5), dropping resistor (R1), current-limiting resistance (R2), release resistance (R3), be close to road resistance a(R4), be close to road resistance b(R5), drive resistance (R6), decompression capacitor (C1), filtering capacitor (C2), pulse capacitor (C3), anti-interference condenser (C4), d type flip flop (IC), triode (VT) and bidirectional triode thyristor (VS), wherein, rectifier diode a(VD1) and rectifier diode b(VD2) select the silicon rectifier diode of 1N4007, voltage-stabiliser tube (VD3) selects the silicon voltage regulator diode of 12V/0.25-0.5W, infrared emission tube (VD4) and infrared receiver tube (VD5) select the silicone tube of diameter 3mm, dropping resistor (R1) selects the carbon resistance film of 47 Ω/1W, current-limiting resistance (R2) selects the metalfilmresistor of 2K Ω/0.5W, the carbon resistance film of 47 K Ω/0.25W is selected in release resistance (R3), be close to road resistance a(R4) and be close to road resistance b(R5) select the carbon resistance film of 4.7K Ω/0.25W, resistance (R6) is driven to select the carbon resistance film of 1K Ω/1W, decompression capacitor (C1) selects the polypropylene film capacitor of 0.22uF/630V, the electrolytic capacitor of 100uF/25V selected by filtering capacitor (C2), the ceramic disc capacitor of 2000P/25V selected by pulse capacitor (C3), the ceramic disc capacitor of 0.022uF/25V selected by anti-interference condenser (C4), d type flip flop (IC) selects the two rising edge d type flip flop of the CD4013 of CMOS, the S9013 silicon triode of NPN type selected by triode (VT), the bidirectional triode thyristor of 1A/600V selected by bidirectional triode thyristor (VS).
The circuit connecting mode of the present embodiment is:
rectifier diode a(VD1) anode hold with being connected to, rectifier diode a(VD1) negative electrode be connected to rectifier diode b(VD2) anode, rectifier diode b(VD2) negative electrode be connected respectively to the positive pole of the vdd terminal of d type flip flop (IC), the positive pole of anti-interference condenser (C4), the collector electrode of triode (VT), the negative electrode of infrared receiver tube (VD5), the anode of infrared emission tube (VD4), the negative electrode of voltage-stabiliser tube (VD3) and filtering capacitor (C2); The negative pole of filtering capacitor (C2) and the anode of voltage-stabiliser tube (VD3) are held with being connected to; The negative electrode of infrared emission tube (VD4) is connected to one end of current-limiting resistance (R2), and the other end of current-limiting resistance (R2) is held with being connected to; The anode of infrared receiver tube (VD5) is connected respectively to one end of release resistance (R3) and one end of pulse capacitor (C3), the other end of release resistance (R3) is held with being connected to, the other end of pulse capacitor (C3) is connected respectively to the base stage of triode (VT) and is close to road resistance a(R4) one end, be close to road resistance a(R4) the other end hold with being connected to; The emitter of triode (VT) is connected respectively to the negative pole of anti-interference condenser (C4), the CP Duan Hebang road resistance b(R5 of d type flip flop (IC)) one end, be close to road resistance b(R5) the other end hold with being connected to; The S end of d type flip flop (IC), R end and VSS end hold with being connected to, and the D of d type flip flop (IC) end is connected to d type flip flop (IC)
end; The Q end of d type flip flop (IC) is connected to the one end driving resistance (R6), the other end of resistance (R6) is driven to be connected to the control pole of bidirectional triode thyristor (VS), the negative electrode of bidirectional triode thyristor (VS) is held with being connected to, and the anode of bidirectional triode thyristor (VS) is connected to terminal stud b(L2) on; Rectifier diode a(VD1) negative electrode and rectifier diode b(VD2) anode be connected to one end of dropping resistor (R1), the other end of dropping resistor (R1) is connected to one end of decompression capacitor (C1), and the other end of decompression capacitor (C1) is connected to terminal stud c(N1) on; Ground end is connected to terminal stud a(L1) on; Switch is by terminal stud a(L1), terminal stud b(L2) and terminal stud c(N1) be connected on outer circuit, terminal stud b(L2) be connected to one end of load, the other end of load is connected to ~ neutral line (N) of 220V power supply on; Terminal stud c(N1) be connected to ~ neutral line (N) of 220V power supply on; Terminal stud a(L1) be connected to ~ phase line (L) of 220V power supply on.
Claims (4)
1. a solid explosion-proof switch, it is characterized in that switch forms primarily of switch panel (11), light-operated assembly (12), button (15), slide bar (17), helical spring (14), wiring board (1), electronic component and back cover (10), wherein, light-operated assembly (12) and electronic component are arranged on wiring board (1), wiring board (1) is arranged in back cover (10), and back cover (10) is arranged on switch panel (11), there is circular hole at the center of switch panel (11), and there is the screw for installing back cover (10) inner side of switch panel (11), light-operated assembly (12) is in rectangular structure, light-operated assembly (12) there is infrared emitting hole (6), infrared receiving aperture (8) and square hole chute (7), infrared emitting hole (6) and infrared receiving aperture (8) are linearly corresponding to be arranged, square hole chute (7) passes perpendicularly through between infrared emitting hole (6) and infrared receiving aperture (8), installation infrared line transmitting tube (VD4) in infrared emitting hole (6), infrared emission tube (VD4) points to infrared receiving aperture (8), installation infrared line receiving tube (VD5) in infrared receiving aperture (8), infrared receiver tube (VD5) is towards infrared emitting hole (6), button (15) and slide bar (17) are connected as a single entity, button (15) is circle structure, button (15) stretches out from the center hole of switch panel (11), slide bar (17) is cube structure, slide bar (17) extend in the square hole chute (7) of light-operated assembly (12), the front portion of slide bar (17) is made to be inserted between infrared emitting hole (6) and infrared receiving aperture (8), there is loophole (13) front portion of slide bar (17), loophole (13) and shifting to install between infrared emitting hole (6) and infrared receiving aperture (8), when pressing the button (15), loophole (13) and infrared emitting hole (6) and infrared receiving aperture (8) linearly coordination, light is passed through, when button (15) sets back, the light tight body of rod of slide bar (17) is interposed between outside line launch hole (6) and infrared receiving aperture (8), stop that light passes through, the back-moving spring that helical spring (14) is button (15), helical spring (14) is arranged on the rear portion of slide bar (17), the compression travel of helical spring (14) slide bar (17) tail end to light-operated assembly (12) end face between,
The electronic component being arranged on wiring board (1) comprises: rectifier diode a(VD1), rectifier diode b(VD2), voltage-stabiliser tube (VD3), dropping resistor (R1), current-limiting resistance (R2), release resistance (R3), be close to road resistance a(R4), be close to road resistance b(R5), drive resistance (R6), decompression capacitor (C1), filtering capacitor (C2), pulse capacitor (C3), anti-interference condenser (C4), d type flip flop (IC), triode (VT) and bidirectional triode thyristor (VS), the pin leads of infrared emission tube (VD4) and infrared receiver tube (VD5) is connected on wiring board (1), the connected mode of circuit is:
Rectifier diode a(VD1) anode hold with being connected to, rectifier diode a(VD1) negative electrode be connected to rectifier diode b(VD2) anode, rectifier diode b(VD2) negative electrode be connected respectively to the positive pole of the vdd terminal of d type flip flop (IC), the positive pole of anti-interference condenser (C4), the collector electrode of triode (VT), the negative electrode of infrared receiver tube (VD5), the anode of infrared emission tube (VD4), the negative electrode of voltage-stabiliser tube (VD3) and filtering capacitor (C2); The negative pole of filtering capacitor (C2) and the anode of voltage-stabiliser tube (VD3) are held with being connected to; The negative electrode of infrared emission tube (VD4) is connected to one end of current-limiting resistance (R2), and the other end of current-limiting resistance (R2) is held with being connected to; The anode of infrared receiver tube (VD5) is connected respectively to one end of release resistance (R3) and one end of pulse capacitor (C3), the other end of release resistance (R3) is held with being connected to, the other end of pulse capacitor (C3) is connected respectively to the base stage of triode (VT) and is close to road resistance a(R4) one end, be close to road resistance a(R4) the other end hold with being connected to; The emitter of triode (VT) is connected respectively to the negative pole of anti-interference condenser (C4), the CP Duan Hebang road resistance b(R5 of d type flip flop (IC)) one end, be close to road resistance b(R5) the other end hold with being connected to; The S end of d type flip flop (IC), R end and VSS end hold with being connected to, and the D of d type flip flop (IC) end is connected to d type flip flop (IC)
end; The Q end of d type flip flop (IC) is connected to the one end driving resistance (R6), and drive the other end of resistance (R6) to be connected to the control pole of bidirectional triode thyristor (VS), the negative electrode of bidirectional triode thyristor (VS) is held with being connected to; Circuit is by terminal stud a(L1), terminal stud b(L2) and terminal stud c(N1) be connected on outer circuit, the anode of bidirectional triode thyristor (VS) is connected to terminal stud b(L2) on; Rectifier diode a(VD1) negative electrode and rectifier diode b(VD2) anode be connected to one end of dropping resistor (R1), the other end of dropping resistor (R1) is connected to one end of decompression capacitor (C1), and the other end of decompression capacitor (C1) is connected to terminal stud c(N1) on; Ground end is connected to terminal stud a(L1) on.
2. a kind of solid explosion-proof switch according to claim 1, is characterized in that button (15) has bulge loop (16), and bulge loop (16) makes button (15) spacing on switch panel.
3. a kind of solid explosion-proof switch according to claim 1, is characterized in that the width of slide bar (17) is greater than the diameter of infrared emitting hole (6) and infrared receiving aperture (8).
4. a kind of solid explosion-proof switch according to claim 1, is characterized in that adopting epoxy resin wiring board (1) and electronic package in back cover (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310010771.4A CN103066979B (en) | 2013-01-13 | 2013-01-13 | Solid explosion-proof switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310010771.4A CN103066979B (en) | 2013-01-13 | 2013-01-13 | Solid explosion-proof switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103066979A CN103066979A (en) | 2013-04-24 |
| CN103066979B true CN103066979B (en) | 2015-02-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310010771.4A Active CN103066979B (en) | 2013-01-13 | 2013-01-13 | Solid explosion-proof switch |
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| Country | Link |
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| CN (1) | CN103066979B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105846805A (en) * | 2015-01-16 | 2016-08-10 | 海洋王照明科技股份有限公司 | Explosion-proof switch interface circuit |
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| CN202978872U (en) * | 2013-01-13 | 2013-06-05 | 衢州昀睿工业设计有限公司 | Solid state explosion-proof switch |
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2013
- 2013-01-13 CN CN201310010771.4A patent/CN103066979B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2107736U (en) * | 1991-08-23 | 1992-06-17 | 沈阳航空工业学院 | Contactless explosion-proof switch |
| CN2150678Y (en) * | 1992-12-19 | 1993-12-22 | 王徐涛 | Infra-red anti-exploding switch |
| CN2177302Y (en) * | 1993-09-10 | 1994-09-14 | 海门县星通电器厂 | Photo control solid electronic switch |
| US6201905B1 (en) * | 1999-02-05 | 2001-03-13 | Telemotive Industrial Controls | Optical switch with controlled voltage output |
| CN2565202Y (en) * | 2002-06-27 | 2003-08-06 | 郑州博汇电子技术有限公司 | Zero voltage contactless explosion-proof switch |
| CN202978872U (en) * | 2013-01-13 | 2013-06-05 | 衢州昀睿工业设计有限公司 | Solid state explosion-proof switch |
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| Publication number | Publication date |
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| CN103066979A (en) | 2013-04-24 |
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Effective date of registration: 20170904 Address after: 28 building 10, No. 004, Yuhua Road, B District, Tianzhu district airport economic development zone, Beijing, Shunyi District, Beijing 100000 Patentee after: Rittal electrical (Beijing) Co. Ltd. Address before: Zhejiang province Quzhou City Kecheng District 324000 Kaixuan Road No. 6 (WITHUB industrial design Industrial Park Building 2, room 2-302) Patentee before: Quzhou Yunrui Industry Design Co., Ltd. |
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