CN105276615A

CN105276615A - Automatic hand-touch-type delay cigarette lighter

Info

Publication number: CN105276615A
Application number: CN201510869685.8A
Authority: CN
Inventors: 周云侠
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-11-29
Filing date: 2015-11-29
Publication date: 2016-01-27

Abstract

The invention provides an automatic hand-touch-type delay cigarette lighter. The automatic hand-touch-type delayed cigarette lighter is characterized by comprising a 12-V direct-current power supply, a touch electrode CM, an astable trigger and delay circuit and an electric heating wire drive circuit; the selected type of a two-input-end four-nand-gate circuit ICI in the astable trigger circuit is CD4011. The cigarette lighter is mainly used at places such as a chemical plant, a station, an airport and a hotel guest room where an open flame is inconveniently used and a cigarette need to be lit, and therefore the cigarette lighting process can be achieved with the electric cigarette lighter. According to the automatic hand-touch-type delay cigarette lighter, for avoiding the safety hazard existing in an infrared pair tube cigarette lighter, common components are used, the problems such as contact burn of a heating circuit are completely eradicated, the requirements that the circuit structure is simple, the working performance is stable, the cost is low, and use is safe are met, and the automatic hand-touch-type delay cigarette lighter can be widely applied to public places such as a hotel, an office building, a public toilet, a hospital and an airport.

Description

Hand touch time delay utensil for automatically lighting cigarette

Technical field

The invention belongs to electron controls technology application, is about a kind of hand touch time delay utensil for automatically lighting cigarette.

Background technology

Cigar lighter is mainly used in the place that inconvenience uses naked light, such as: chemical plant, station, airport and hotel guest-room etc. need the place lit a cigarette, so use electronic cigarette lighter can realize cigarette lighter process.In common electronic smoke ignition circuit, generally use infrared mutual-tube, that is: infrared emission tube and infrared receiver tube and power switch circuit and peripheral cell form power switch, control electric heating circuit heating or flame-out by DC relay.Use the cigar lighter that infrared mutual-tube makes, its lighter hole is easily subject to mischief or stub does not take out in time, makes heater circuit be in heated condition for a long time and cause fire alarm.

In order to solve the defect that above-mentioned infrared mutual-tube cigar lighter exists, hand touch time delay utensil for automatically lighting cigarette of the present invention, use common components and parts, the problems such as the pitting of contact of heater circuit are stopped, achieve that circuit structure is succinct, the requirement such as stable work in work, cheap, use safety, the public places such as hotel, office building, public lavatory, hospital, airport can be widely used in.

Below describe that hand touch time delay utensil for automatically lighting cigarette of the present invention is involved necessary in implementation process, guardian technique content in detail.

Summary of the invention

Goal of the invention and beneficial effect: cigar lighter is mainly used in the place that inconvenience uses naked light, such as: chemical plant, station, airport and hotel guest-room etc. need the place lit a cigarette, so use electronic cigarette lighter can realize cigarette lighter process.In order to solve the potential safety hazard that above-mentioned infrared mutual-tube cigar lighter exists, hand touch time delay utensil for automatically lighting cigarette of the present invention, use common components and parts, the problems such as the pitting of contact of heater circuit are stopped, achieve that circuit structure is succinct, the requirement such as stable work in work, cheap, use safety, the public places such as hotel, office building, public lavatory, hospital, airport can be widely used in.

Circuit working principle: as finger touch touch electrode CM, be equivalent to access an equivalent resistance between two sheet metals of touch electrode CM, its resistance is generally less than 0.6M Ω, and astable multibrator circuit is just started working.

The model of two input four NAND gate circuit IC1 is CD4011, and circuit is connected into the trigger without steady state function, the 14th pin connection circuit positive pole VCC of two input four NAND gate circuit IC1; The 7th pin connection circuit ground GND of two input four NAND gate circuit IC1; When touching two sheet metals of touch electrode CM with finger simultaneously, 1st pin of two input four NAND gate circuit IC1 is high level, 4th pin of two input four NAND gate circuit IC1 changes low level into, through the 5th pin of two input four NAND gate circuit IC1 and the 6th pin anti-phase after, the 3rd pin of two input four NAND gate circuit IC1 is made to export high level, this high level can Direct driver enhancement mode N channel field-effect pipe VT1 conducting, makes the electrical heating wire RL lit a cigarette must establish heating of beginning by cable.Electrical heating wire RL two ends in circuit the silicon rectifier diode D1 connect, it is established for the inverse electromotive force absorbing electrical heating wire RL instant cut-off and produce.

Output the 3rd pin of two input four NAND gate collector IC1 becomes high level and can maintain 4 ~ 8 seconds, the capacity of the electrochemical capacitor C1 in adjustment astable multibrator circuit, can change the output width of high level, that is: the 3rd pin changing two input four NAND gate circuit IC1 exports the time delay of high level.

Technical scheme: hand touch time delay utensil for automatically lighting cigarette, it comprises 12V dc source, touch electrode CM, astable multibrator and delay circuit, electrical heating wire drive circuit, it is characterized in that:

Astable multibrator circuit: it is by two input four NAND gate circuit IC1, touch electrode CM, resistance R1, electrochemical capacitor C1, resistance R2 and resistance R3 forms, the model that two input four NAND gate circuit IC1 select is CD4011, one end of the 1st pin connecting resistance R2 of two input four NAND gate circuit IC1 and one end of resistance R3, 14th pin of two input four NAND gate circuit IC1 and the other end connection circuit positive pole VCC of resistance R3, the other end of resistance R2 connects one end of touch electrode CM, the other end connection circuit ground GND of touch electrode CM, 5th pin of two input four NAND gate circuit IC1 and the 6th pin are by resistance R1 connection circuit ground GND, 4th pin of two input four NAND gate circuit IC1 connects the 2nd pin of two input four NAND gate circuit IC1, 5th pin of two input four NAND gate circuit IC1 is connected with the negative pole of electrochemical capacitor C1 with the 6th pin, 3rd pin of two input four NAND gate circuit IC1 connects the positive pole of electrochemical capacitor C1,

Electrical heating wire drive circuit: it is made up of resistance R4, enhancement mode N channel field-effect pipe VT1, electrical heating wire RL and silicon rectifier diode D1,3rd pin of two input four NAND gate circuit IC1 connects the grid of enhancement mode N channel field-effect pipe VT1 by resistance R4, the drain electrode of enhancement mode N channel field-effect pipe VT1 connects one end of electrical heating wire RL and the positive pole of silicon rectifier diode D1, the source electrode connection circuit ground GND of the other end of electrical heating wire RL and the negative pole connection circuit positive pole VCC of silicon rectifier diode D1, enhancement mode N channel field-effect pipe VT1;

The positive pole of 12V dc source is connected with circuit anode VCC, and the negative pole of 12V dc source is connected with circuit ground GND.

Accompanying drawing explanation

Accompanying drawing 1 is the embodiment circuit working schematic diagram that the invention provides a hand touch time delay utensil for automatically lighting cigarette.

Detailed description of the invention

According to the hand touch time delay utensil for automatically lighting cigarette circuit working schematic diagram shown in accompanying drawing 1 and accompanying drawing explanation, and according to annexation between components and parts in each several part circuit described in summary of the invention, and components and parts technical parameter described in embodiment requires and circuit production main points are carried out enforcement and can be realized the present invention, is further described correlation technique of the present invention below in conjunction with embodiment.

The technical parameter of components and parts and selection requirement

IC1 is two input four NAND gate circuits, and the model selected is CD4011, only employs wherein two NAND gate circuits in the embodiment of the present invention;

Resistance all selects power to be 1/8W metalfilmresistor, and the resistance of resistance R1 ~ R2 is 120K Ω; The resistance of resistance R3 is 68 Ω; The resistance of resistance R4 is 100K Ω;

C1 is electrochemical capacitor, and its range of capacity is: 68 ~ 100 μ F/25V;

VT1 is enhancement mode N channel field-effect pipe, and the model selected is IRFZ30;

Touch electrode CM can use the sheet metal of size 10mm × 8mm to make;

Heat tape RL is heating element heater, selects the electric furnace heating wire of one section of 1.5KW, requires that resistance is 6 ~ 7 Ω;

The operating voltage of dc source is 12V, the electric current >=2800mA needed for dc source work.

Circuit production main points, circuit debugging and using method

Because the circuit structure of hand touch time delay utensil for automatically lighting cigarette is fairly simple, as long as the electronic devices and components performance generally selected is intact, and the components and parts annexation to specifications in accompanying drawing 1 is welded, physical connection line and welding quality are through carefully checking correctly, and circuit of the present invention only needs to carry out simple debugging and can normally work;

For ensure hand touch time delay utensil for automatically lighting cigarette can near heavy current installation reliably working, overcome electromagnetic interference, the lead-in wire of touch electrode CM should be as far as possible short, and require as far as possible away from other pin of two input four NAND gate circuit IC1;

Damage to prevent two input four NAND gate circuit IC1 in welding process from suffering electrostatic, therefore, weld time two input four NAND gate circuit IC1 pin time, human body and circuit board must be kept to have reliable ground to protect; Advise that two input four NAND gate circuit IC1 use an IC socket;

The pin that two input four NAND gate circuit IC1 do not use must whole ground connection!

The capacity of adjustment electrochemical capacitor C1 can change the width of output level, that is: the 3rd pin changing two input four NAND gate circuit IC1 exports holding time of high level;

Require the present invention use metal shell, and metal shell will with circuit ground GND be connected firm.

Circuit structure design of the present invention, components' placement; and its face shaping design and size etc. thereof are not all key technologies of the present invention; neither application claims protection guardian technique content; because not affecting the realization of specific implementation process of the present invention and goal of the invention, therefore do not illustrate one by one in the description.

Claims

1. a hand touch time delay utensil for automatically lighting cigarette, it comprises 12V dc source, touch electrode CM, astable multibrator and delay circuit, electrical heating wire drive circuit, it is characterized in that:

Described astable multibrator circuit is by two input four NAND gate circuit IC1, touch electrode CM, resistance R1, electrochemical capacitor C1, resistance R2 and resistance R3 forms, the model that two input four NAND gate circuit IC1 select is CD4011, one end of the 1st pin connecting resistance R2 of two input four NAND gate circuit IC1 and one end of resistance R3, 14th pin of two input four NAND gate circuit IC1 and the other end connection circuit positive pole VCC of resistance R3, the other end of resistance R2 connects one end of touch electrode CM, the other end connection circuit ground GND of touch electrode CM, 5th pin of two input four NAND gate circuit IC1 and the 6th pin are by resistance R1 connection circuit ground GND, 4th pin of two input four NAND gate circuit IC1 connects the 2nd pin of two input four NAND gate circuit IC1, 5th pin of two input four NAND gate circuit IC1 is connected with the negative pole of electrochemical capacitor C1 with the 6th pin, 3rd pin of two input four NAND gate circuit IC1 connects the positive pole of electrochemical capacitor C1,

Described electrical heating wire drive circuit is made up of resistance R4, enhancement mode N channel field-effect pipe VT1, electrical heating wire RL and silicon rectifier diode D1,3rd pin of two input four NAND gate circuit IC1 connects the grid of enhancement mode N channel field-effect pipe VT1 by resistance R4, the drain electrode of enhancement mode N channel field-effect pipe VT1 connects one end of electrical heating wire RL and the positive pole of silicon rectifier diode D1, the source electrode connection circuit ground GND of the other end of electrical heating wire RL and the negative pole connection circuit positive pole VCC of silicon rectifier diode D1, enhancement mode N channel field-effect pipe VT1;

The positive pole of described 12V dc source is connected with circuit anode VCC, and the negative pole of 12V dc source is connected with circuit ground GND.