CN103742942A - Automobile-mounted cigarette lighter with protection device - Google Patents
Automobile-mounted cigarette lighter with protection device Download PDFInfo
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- CN103742942A CN103742942A CN201410009540.6A CN201410009540A CN103742942A CN 103742942 A CN103742942 A CN 103742942A CN 201410009540 A CN201410009540 A CN 201410009540A CN 103742942 A CN103742942 A CN 103742942A
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Abstract
The invention discloses an automobile-mounted cigarette lighter with a protection device. When bimetallic strips of existing cigarette lighters can not be popped, motormeters are burnt out due to too high temperatures. A return spring sleeves a guide positioning pipe which sleeves a connection bar, the tail portion of the connection bar and a draw button are fixed, one end of a resistance wire is embedded into a kerf of the head portion of the connection bar, the other end of the resistance wire is fixed on the inner wall of a resistance seat, a bimetallic strip is embedded into a groove in the top of a porcelain seat, the bottom of the porcelain seat is embedded into the inner wall of the bottom of a casing, the bottom of a conductive spring is snapped into the porcelain seat, the resistance seat is arranged at the top of the bimetallic strip, a box body of a thermal insulation box is arranged at the bottom of the casing, the top of a plastic seat is embedded into a base cover of the thermal insulation box, the top of a lug plate is embedded into the top of the plastic seat, a wire holder is arranged at the bottom of the lug plate, and a clamp nut compresses the wire holder. According to the automobile-mounted cigarette lighter with the protection device, when the bimetallic strip can not pop up the resistance seat, a circuit module forcibly turns off a circuit to guarantee safety of the cigarette lighter and motormeters.
Description
Technical field
The invention belongs to automobile technical field, relate to automobile mounted cigar lighter, be specifically related to a kind of automobile mounted cigar lighter that carries protective device.
Background technology
Cigar lighter is a kind of vapour vehicular equipment, and Main Function is to light cigarette.When cigar lighter is pressed into, heating part embeds in the bimetal leaf of cigarette lighter socket, a loop of inner formation, and circuit turn-on, resistance wire will be heated to the temperature (1050～1100 ℃) that enough makes cigarette burning, and user just can be used to igniting cigarette.Nowadays a lot of cigar lighters have a common fault, and when bimetal leaf cannot eject the heating part of cigar lighter, resistance wire is heated always exactly, just can burn out automobile instrument or other parts during excess Temperature; Although on some cigar lighter, added a wire, power-off while making its excess Temperature, but still there is potential safety hazard.This is the previous insoluble problem of order.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, a kind of automobile mounted cigar lighter that carries protective device is provided, when bimetal leaf can not normal deformation and flicked resistor block, circuit module is forced disconnecting circuit, guarantees the safety of cigar lighter and automobile instrument.
The present invention includes heating component and cigarette lighter socket.
Described heating component comprises positioning seat, dirt-proof boot, spring cup, return spring, guide-localization pipe, connecting rod, pull-button, resistor block and resistance wire; Described positioning seat is the cylindrical shape that open-top, bottom offer through hole, and dirt-proof boot is all open cylindrical shapes of two ends; Described dirt-proof boot is nested with outside positioning seat, and spring cup is arranged on positioning seat top, and is slidably connected with the inwall of positioning seat; Return spring, guide-localization pipe and connecting rod are all arranged on positioning seat inside; Described return spring is nested with on guide-localization pipe; Described guide-localization pipe box is put on connecting rod, and bottom is stretched in the through hole of positioning seat bottom, and is slidably connected with positioning seat; The afterbody of connecting rod stretches out outside spring cup, and fixes with pull-button; Described resistor block and resistance wire are nested with the head at connecting rod successively, and one end of resistance wire embeds in the joint-cutting of connecting rod head, and the other end is fixed on the resistor block inwall of dish type.
Described cigarette lighter socket comprises conductive lever, power spring, bimetal leaf, porcelain seat, housing, circuit board, heat insulation box, plastic seat, lug plate, junction block and clamp nut.Described conductive lever is successively through bottom, plastic seat, lug plate and the junction block of the top of bimetal leaf, porcelain seat, housing, heat insulation box, circuit board, heat insulation box, and afterbody is by the shaft shoulder and bimetal leaf axial location, and head is threaded with clamp nut.
Described housing is the cylindrical shape of open-top, and sidewall symmetry offers two bimetal leafs and stretches out groove; The top of described porcelain seat offers groove, and a sidewall of groove offers power spring draw-in groove, and another sidewall offers power spring auxiliary mounting groove, near power spring draw-in groove place, offers wire through-hole; The bottom of described bimetal leaf embeds in the groove at porcelain seat top, and the sheet metal of two arms stretches out respectively corresponding bimetal leaf and stretches out outside groove; The bottom of described porcelain seat embeds the bottom interior wall of housing.
The spring coil of described power spring bottom is bent to form circlip for hole structure, snaps in the power spring draw-in groove and power spring auxiliary mounting groove of porcelain seat.The dirt-proof boot of described heating component is nested with in housing, and resistor block is arranged on bimetal leaf top.
Described heat insulation box comprises box body and bottom, and the dental inlay of bottom embeds in the dental inlay groove of box body; Described box body is arranged on the bottom of housing; On described bottom, offer plastic seat installing hole, the plastic seat mounting blocks at plastic seat top embeds in the plastic seat installing hole of bottom; Described lug plate is inverted L bracket, and top embeds in the junction block mounting groove of plastic seat bottom; Described junction block is arranged on lug plate bottom; One end that junction block connects wire is connected with lug plate, and the other end is connected with junction block; Clamp nut compresses junction block.
Described circuit board is arranged in the box body of heat insulation box, and the thermistor on circuit board passes bottom, plastic seat and lug plate successively, and is adjacent to clamp nut setting; On circuit board, being welded with earth lead, lug plate connects wire and is connected wire with power spring; Described earth lead through bottom and plastic seat, is connected with car body successively; Described lug plate connects wire successively through bottom and plastic seat, and welds with lug plate; Described power spring connects wire successively through the wire through-hole of box body, housing and porcelain seat, is connected with power spring.
The afterbody of described connecting rod is threaded with embedded nut, and embedded nut embeds in pull-button; The middle part of connecting rod is provided with location shaft part, and the upper shaft shoulder of location shaft part is adjacent to the bottom of guide-localization pipe; Between the lower shaft shoulder of the location shaft part of described resistor block and connecting rod, be equipped with mica sheet between resistor block and resistance wire.
The bottom of described housing is provided with a plurality of heat insulation box positioning convex; The top of described box body offers a plurality of heat insulation box locating holes, and the quantity of heat insulation box locating hole equates with the quantity of heat insulation box positioning convex; Each heat insulation box positioning convex of housing embeds respectively in corresponding heat insulation box locating hole.
Described power spring is tapered coil spring.
Between described junction block and lug plate, be provided with mica sheet.
Described heat insulation box adopts partiting thermal insulation material.
The circuit module of described circuit board comprises power module, processor chips U1, current control module and temperature protection module; Described processor chips U1 adopts PIC12F675 chip.
Described power module comprises diode D1, step-down chip U2, the first capacitor C 1, the second capacitor C 2, the first resistance R 1 and the second resistance R 2; Export+12V voltage of storage battery connects wire by lug plate and lug plate and is connected with the voltage input end E2 of circuit board, the voltage input end E2 of circuit board is connected with the positive pole of diode D1, and the negative pole of diode D1 is connected with the Vin end of step-down chip U2, one end of the first capacitor C 1; The ADJ end of described step-down chip U2 is connected with one end of the first resistance R 1 and one end of the second resistance R 2; The other end of the first resistance R 1 is connected with the other end of the first capacitor C 1 and one end of the second capacitor C 2 and ground connection; The Vout end of step-down chip U2 is connected with the other end of the other end of the second capacitor C 2,1 pin of processor chips U1 and the second resistance R 2, and output+5V voltage; Described step-down chip U2 adopts spx1117 chip.
Described current control module comprises the 3rd resistance R 3, the 4th resistance R 4, the 5th resistance R 5, the 6th resistance R 6, the 7th resistance R 7, the 8th resistance R 8, NMOS pipe Q1 and the 3rd capacitor C 3; 2 pins of described processor chips U1 meet LED, 8 pin ground connection, and 5 pins are unsettled; 3 pins of described processor chips U1 are connected with the g utmost point of NMOS pipe Q1, and the d utmost point of NMOS pipe Q1 connects wire by power spring and is connected with the interface E3 of power spring; The NMOS pipe s utmost point of Q1 and one end of the 7th resistance R 7, one end of the 3rd resistance R 3, one end of one end of the 4th resistance R 4, the 5th resistance R 5 and one end of the 6th resistance R 6 are connected; The other end of described the 7th resistance R 7 is connected with 6 pins of one end of the 3rd capacitor C 3, one end of the 8th resistance R 8 and processor chips U1; The other end of the other end of the other end of the other end of the other end of described the 3rd resistance R 3, the 4th resistance R 4, the 5th resistance R 5, the 6th resistance R 6, the 8th resistance R 8 and the 3rd other end of capacitor C 3 and one end of earth lead are connected, and the other end of earth lead is connected with car body E1 and ground connection.
Described temperature protection module comprises the 4th capacitor C 4, the 9th resistance R 9, the tenth resistance R 10 and thermistor R11; One end of described the 9th resistance R 9 is connected with one end E5 of thermistor R11 and 1 pin of processor chips U1, and the other end is connected with 4 pins of processor chips U1 and one end of the 4th capacitor C 4; One end of described the tenth resistance R 10 is connected with 7 pins of processor chips U1 and the other end E4 of thermistor R11; The equal ground connection of the other end of the other end of the 4th capacitor C 4 and the tenth resistance R 10.
Beneficial effect of the present invention:
1, the present invention is realizing under the prerequisite of cigar lighter basic function, increases circuit module, utilizes the timer of chip internal and AD sampling functions to control protection to cigar lighter; When bimetal leaf can not normal deformation and flicked resistor block, circuit module is forced disconnecting circuit, guarantees the safety of cigar lighter and automobile instrument.
2, heat insulation box of the present invention adopts partiting thermal insulation material, avoids in the cigar lighter course of work, circuit module being caused and damaging and disturb, and increases its operation stability, improves product reliability.
Accompanying drawing explanation
Fig. 1 is the stereogram of each part in the present invention;
Fig. 2 is overall structure cutaway view of the present invention;
Fig. 3 is the stereogram of middle shell of the present invention;
Fig. 4 is the stereogram of porcelain seat in the present invention;
Fig. 5 is the stereogram of power spring in the present invention;
Fig. 6-1 is the stereogram of heat insulation box in the present invention;
Fig. 6-2 are the box body stereogram of heat insulation box in the present invention;
Fig. 7 is the stereogram of plastic seat in the present invention;
Fig. 8 is the stereogram of circuit board in the present invention;
Fig. 9 is that the connection wire of circuit board in the present invention is installed stereogram;
Figure 10 is the circuit diagram of circuit board except temperature protection module in the present invention;
Figure 11 is the temperature protection module circuit diagram of circuit board in the present invention.
The specific embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
As illustrated in fig. 1 and 2, a kind of automobile mounted cigar lighter that carries protective device comprises heating component and cigarette lighter socket.
Heating component comprises positioning seat 1, dirt-proof boot 2, spring cup 3, return spring 4, guide-localization pipe 5, connecting rod 6, pull-button 8, resistor block 9 and resistance wire 10; Positioning seat 1 offers the cylindrical shape of through hole for open-top, bottom, and dirt-proof boot 2 is all open cylindrical shapes of two ends; Dirt-proof boot 2 is nested with outside positioning seat 1, and spring cup 3 is arranged on positioning seat 1 top, and is slidably connected with the inwall of positioning seat 1; Return spring 4, guide-localization pipe 5 and connecting rod 6 are all arranged on positioning seat 1 inside; Return spring 4 is nested with on guide-localization pipe 5; Guide-localization pipe 5 is nested with on connecting rod 6, and bottom is stretched in the through hole of positioning seat 1 bottom, and is slidably connected with positioning seat 1; The afterbody of connecting rod 6 stretches out outside spring cup 3, and is threaded with embedded nut 7, and embedded nut 7 embeds in pull-button 8; The middle part of connecting rod 6 is provided with location shaft part, and the upper shaft shoulder of location shaft part is adjacent to the bottom of guide-localization pipe 5; Resistor block 9 and resistance wire 10 are nested with the head at connecting rod 6 successively, and one end of resistance wire 10 embeds in the joint-cutting of connecting rod 6 heads, and the other end is fixed on resistor block 9 inwalls of dish type.Between the lower shaft shoulder of the location shaft part of resistor block 9 and connecting rod 6, be equipped with mica sheet 11 between resistor block 9 and resistance wire 10.
Cigarette lighter socket comprises conductive lever 12, power spring 13, bimetal leaf 14, porcelain seat 15, housing 16, circuit board 17, heat insulation box 18, plastic seat 19, lug plate 20, junction block 21 and clamp nut 23.Conductive lever 12 is successively through bottom, plastic seat 19, lug plate 20 and the junction block 21 of the top of bimetal leaf 14, porcelain seat 15, housing 16, heat insulation box 18, circuit board 17, heat insulation box 18, afterbody is by the shaft shoulder and bimetal leaf 14 axial location, and head is threaded with clamp nut 23.
As shown in Fig. 2,3 and 4, the cylindrical shape that housing 16 is open-top, bottom is symmetrically arranged with two heat insulation box positioning convex 16-1, and sidewall symmetry offers two bimetal leafs and stretches out groove 16-2; The top of porcelain seat 15 offers groove 15-1, and a sidewall of groove 15-1 offers power spring draw-in groove 15-2, and another sidewall offers power spring auxiliary mounting groove 15-3, near power spring draw-in groove 15-2 place, offers wire through-hole 15-4; The bottom of bimetal leaf 14 embeds in the groove 15-1 at porcelain seat 15 tops, and the sheet metal of two arms stretches out respectively corresponding bimetal leaf and stretches out outside groove 16-2; The bottom of porcelain seat 15 embeds the bottom interior wall of housing 16.
As shown in Fig. 2,4 and 5, power spring 13 is tapered coil spring, and the spring coil of bottom is bent to form circlip for hole structure 13-1, snaps in the power spring draw-in groove 15-2 and power spring auxiliary mounting groove 15-3 of porcelain seat.The dirt-proof boot 2 of heating component is nested with in housing, and resistor block 9 is arranged on bimetal leaf 14 tops.
As shown in Fig. 2,6-1,6-2 and 7, heat insulation box 18 comprises box body 18-1 and bottom 18-2, and the dental inlay 18-3 of bottom embeds in the dental inlay groove 18-5 of box body; The top symmetry of box body 18-1 offers two heat insulation box locating hole 18-6, and two heat insulation box positioning convex 16-1 of housing embed respectively in corresponding heat insulation box locating hole 18-6; On bottom 18-2, offer plastic seat installing hole 18-4, the plastic seat mounting blocks 19-1 at plastic seat 19 tops embeds in the plastic seat installing hole 18-4 of bottom; Lug plate 20 is inverted L bracket, and top embeds in the junction block mounting groove 19-2 of plastic seat 19 bottoms; Junction block 21 is arranged on lug plate 20 bottoms, and is provided with mica sheet 11 between junction block 21 and lug plate 20; One end that junction block connects wire 22 is connected with lug plate 20, and the other end is connected with junction block 21; Clamp nut 23 compresses junction block 20.
As shown in Fig. 2,8 and 9, circuit board 17 is arranged in the box body 18-1 of heat insulation box, and the thermistor R11 on circuit board 17 passes bottom 18-2, plastic seat 19 and lug plate 20 successively, and is adjacent to clamp nut 23 settings; On circuit board 17, being welded with earth lead 17-1, lug plate connects wire 17-2 and is connected wire 17-3 with power spring; Earth lead 17-1 through bottom 18-2 and plastic seat 19, is connected with car body successively; Lug plate connects wire 17-2 successively through bottom 18-2 and plastic seat 19, and welds with lug plate 20; Power spring connects wire 17-3 successively through the wire through-hole 15-4 of box body 18-1, housing 16 and porcelain seat, is connected with power spring 13.The material of heat insulation box 18 is pottery, avoids cigar lighter in the course of the work circuit board 17 to be caused and disturbs and damage, and increases the operation stability of protective device; Mica sheet 11 has heat insulation and insulating effect.
As shown in FIG. 10 and 11, the circuit module of circuit board 17 comprises power module, processor chips U1, current control module and temperature protection module; Processor chips U1 adopts PIC12F675 chip.
Power module comprises diode D1, step-down chip U2, the first capacitor C 1, the second capacitor C 2, the first resistance R 1 and the second resistance R 2; Export+12V voltage of storage battery connects wire 17-2 by lug plate 20 and lug plate and is connected with the voltage input end E2 of circuit board 17, the voltage input end E2 of circuit board 17 is connected with the positive pole of diode D1, and the negative pole of diode D1 is connected with the Vin end of step-down chip U2, one end of the first capacitor C 1; The ADJ end of step-down chip U2 is connected with one end of the first resistance R 1 and one end of the second resistance R 2; The other end of the first resistance R 1 is connected with the other end of the first capacitor C 1 and one end of the second capacitor C 2 and ground connection; The Vout end of step-down chip U2 is connected with the other end of the other end of the second capacitor C 2,1 pin of processor chips U1 and the second resistance R 2, and output+5V voltage; Wherein, step-down chip U2 adopts spx1117 chip.
Current control module comprises the 3rd resistance R 3, the 4th resistance R 4, the 5th resistance R 5, the 6th resistance R 6, the 7th resistance R 7, the 8th resistance R 8, NMOS pipe Q1 and the 3rd capacitor C 3; 2 pins of processor chips U1 meet LED, 8 pin ground connection, and 5 pins are unsettled; 3 pins of processor chips U1 are connected with the g utmost point of NMOS pipe Q1, and the d utmost point of NMOS pipe Q1 connects wire 17-3 by power spring and is connected with the interface E3 of power spring 13; The NMOS pipe s utmost point of Q1 and one end of the 7th resistance R 7, one end of the 3rd resistance R 3, one end of one end of the 4th resistance R 4, the 5th resistance R 5 and one end of the 6th resistance R 6 are connected; The other end of the 7th resistance R 7 is connected with 6 pins of one end of the 3rd capacitor C 3, one end of the 8th resistance R 8 and processor chips U1; The other end of the other end of the other end of the other end of the other end of the other end of the 3rd resistance R 3, the 4th resistance R 4, the 5th resistance R 5, the 6th resistance R 6, the 8th resistance R 8 and the 3rd capacitor C 3 is connected with one end of earth lead 17-1, and the other end of earth lead 17-1 is connected with car body E1 and ground connection.
Temperature protection module comprises the 4th capacitor C 4, the 9th resistance R 9, the tenth resistance R 10 and thermistor R11; One end of the 9th resistance R 9 is connected with one end E5 of thermistor R11 and 1 pin of processor chips U1, and the other end is connected with 4 pins of processor chips U1 and one end of the 4th capacitor C 4; One end of the tenth resistance R 10 is connected with 7 pins of processor chips U1 and the other end E4 of thermistor R11; The equal ground connection of the other end of the other end of the 4th capacitor C 4 and the tenth resistance R 10.
This carries the operation principle of the automobile mounted cigar lighter of protective device:
Pull-button with resistance wire 10 8 is pressed, and resistor block 9 is stuck in bimetal leaf 14, and whole cigar lighter forms electronic loop, and circuit heats resistance wire 10; While being heated to uniform temperature, bimetal leaf 14 distortion, eject resistor block 9, and user can light a cigarette.When bimetal leaf 14 can not normal deformation and flicked resistor block 9, the processor chips U1 of circuit board 17 forces disconnecting circuit, guarantees the safety of cigar lighter.
This carries the circuit module operation principle of the automobile mounted cigar lighter of protective device:
Utilize timer and the AD sampling functions of processor chips U1 inside to control protection to cigar lighter, power-off in the time of can realizing temperature that 18s power-off, electric current be greater than 8.5A power-off and thermistor R11 and reach 87 ℃.The working time of cigar lighter certified products is 11～16s, and maximum duration is no more than 18s, so the circuit module of this cigar lighter makes cigar lighter work 18s power-off; After cigar lighter entrucking, operating voltage is 9～15V, and operating current is about 7A, when electric current is greater than 8.5A, makes cigar lighter power-off; In like manner, when the thermistor R11 temperature detecting reaches 87 ℃, also make cigar lighter power-off.
Claims (7)
1. an automobile mounted cigar lighter that carries protective device, comprise heating component and cigarette lighter socket, it is characterized in that: described heating component comprises positioning seat, dirt-proof boot, spring cup, return spring, guide-localization pipe, connecting rod, pull-button, resistor block and resistance wire; Described positioning seat is the cylindrical shape that open-top, bottom offer through hole, and dirt-proof boot is all open cylindrical shapes of two ends; Described dirt-proof boot is nested with outside positioning seat, and spring cup is arranged on positioning seat top, and is slidably connected with the inwall of positioning seat; Return spring, guide-localization pipe and connecting rod are all arranged on positioning seat inside; Described return spring is nested with on guide-localization pipe; Described guide-localization pipe box is put on connecting rod, and bottom is stretched in the through hole of positioning seat bottom, and is slidably connected with positioning seat; The afterbody of connecting rod stretches out outside spring cup, and fixes with pull-button; Described resistor block and resistance wire are nested with the head at connecting rod successively, and one end of resistance wire embeds in the joint-cutting of connecting rod head, and the other end is fixed on the resistor block inwall of dish type;
Described cigarette lighter socket comprises conductive lever, power spring, bimetal leaf, porcelain seat, housing, circuit board, heat insulation box, plastic seat, lug plate, junction block and clamp nut; Described conductive lever is successively through bottom, plastic seat, lug plate and the junction block of the top of bimetal leaf, porcelain seat, housing, heat insulation box, circuit board, heat insulation box, and afterbody is by the shaft shoulder and bimetal leaf axial location, and head is threaded with clamp nut;
Described housing is the cylindrical shape of open-top, and sidewall symmetry offers two bimetal leafs and stretches out groove; The top of described porcelain seat offers groove, and a sidewall of groove offers power spring draw-in groove, and another sidewall offers power spring auxiliary mounting groove, near power spring draw-in groove place, offers wire through-hole; The bottom of described bimetal leaf embeds in the groove at porcelain seat top, and the sheet metal of two arms stretches out respectively corresponding bimetal leaf and stretches out outside groove; The bottom of described porcelain seat embeds the bottom interior wall of housing;
The spring coil of described power spring bottom is bent to form circlip for hole structure, snaps in the power spring draw-in groove and power spring auxiliary mounting groove of porcelain seat; The dirt-proof boot of described heating component is nested with in housing, and resistor block is arranged on bimetal leaf top;
Described heat insulation box comprises box body and bottom, and the dental inlay of bottom embeds in the dental inlay groove of box body; Described box body is arranged on the bottom of housing; On described bottom, offer plastic seat installing hole, the plastic seat mounting blocks at plastic seat top embeds in the plastic seat installing hole of bottom; Described lug plate is inverted L bracket, and top embeds in the junction block mounting groove of plastic seat bottom; Described junction block is arranged on lug plate bottom; One end that junction block connects wire is connected with lug plate, and the other end is connected with junction block; Clamp nut compresses junction block;
Described circuit board is arranged in the box body of heat insulation box, and the thermistor on circuit board passes bottom, plastic seat and lug plate successively, and is adjacent to clamp nut setting; On circuit board, being welded with earth lead, lug plate connects wire and is connected wire with power spring; Described earth lead through bottom and plastic seat, is connected with car body successively; Described lug plate connects wire successively through bottom and plastic seat, and welds with lug plate; Described power spring connects wire successively through the wire through-hole of box body, housing and porcelain seat, is connected with power spring.
2. a kind of automobile mounted cigar lighter that carries protective device according to claim 1, is characterized in that: the afterbody of described connecting rod is threaded with embedded nut, and embedded nut embeds in pull-button; The middle part of connecting rod is provided with location shaft part, and the upper shaft shoulder of location shaft part is adjacent to the bottom of guide-localization pipe; Between the lower shaft shoulder of the location shaft part of described resistor block and connecting rod, be equipped with mica sheet between resistor block and resistance wire.
3. a kind of automobile mounted cigar lighter that carries protective device according to claim 1, is characterized in that: the bottom of described housing is provided with a plurality of heat insulation box positioning convex; The top of described box body offers a plurality of heat insulation box locating holes, and the quantity of heat insulation box locating hole equates with the quantity of heat insulation box positioning convex; Each heat insulation box positioning convex of housing embeds respectively in corresponding heat insulation box locating hole.
4. a kind of automobile mounted cigar lighter that carries protective device according to claim 1, is characterized in that: described power spring is tapered coil spring.
5. a kind of automobile mounted cigar lighter that carries protective device according to claim 1, is characterized in that: between described junction block and lug plate, be provided with mica sheet.
6. a kind of automobile mounted cigar lighter that carries protective device according to claim 1, is characterized in that: described heat insulation box adopts partiting thermal insulation material.
7. a kind of automobile mounted cigar lighter that carries protective device according to claim 1, is characterized in that: the circuit module of described circuit board comprises power module, processor chips U1, current control module and temperature protection module; Described processor chips U1 adopts PIC12F675 chip;
Described power module comprises diode D1, step-down chip U2, the first capacitor C 1, the second capacitor C 2, the first resistance R 1 and the second resistance R 2; Export+12V voltage of storage battery connects wire by lug plate and lug plate and is connected with the voltage input end E2 of circuit board, the voltage input end E2 of circuit board is connected with the positive pole of diode D1, and the negative pole of diode D1 is connected with the Vin end of step-down chip U2, one end of the first capacitor C 1; The ADJ end of described step-down chip U2 is connected with one end of the first resistance R 1 and one end of the second resistance R 2; The other end of the first resistance R 1 is connected with the other end of the first capacitor C 1 and one end of the second capacitor C 2 and ground connection; The Vout end of step-down chip U2 is connected with the other end of the other end of the second capacitor C 2,1 pin of processor chips U1 and the second resistance R 2, and output+5V voltage; Described step-down chip U2 adopts spx1117 chip;
Described current control module comprises the 3rd resistance R 3, the 4th resistance R 4, the 5th resistance R 5, the 6th resistance R 6, the 7th resistance R 7, the 8th resistance R 8, NMOS pipe Q1 and the 3rd capacitor C 3; 2 pins of described processor chips U1 meet LED, 8 pin ground connection, and 5 pins are unsettled; 3 pins of described processor chips U1 are connected with the g utmost point of NMOS pipe Q1, and the d utmost point of NMOS pipe Q1 connects wire by power spring and is connected with the interface E3 of power spring; The NMOS pipe s utmost point of Q1 and one end of the 7th resistance R 7, one end of the 3rd resistance R 3, one end of one end of the 4th resistance R 4, the 5th resistance R 5 and one end of the 6th resistance R 6 are connected; The other end of described the 7th resistance R 7 is connected with 6 pins of one end of the 3rd capacitor C 3, one end of the 8th resistance R 8 and processor chips U1; The other end of the other end of the other end of the other end of the other end of described the 3rd resistance R 3, the 4th resistance R 4, the 5th resistance R 5, the 6th resistance R 6, the 8th resistance R 8 and the 3rd other end of capacitor C 3 and one end of earth lead are connected, and the other end of earth lead is connected with car body E1 and ground connection;
Described temperature protection module comprises the 4th capacitor C 4, the 9th resistance R 9, the tenth resistance R 10 and thermistor R11; One end of described the 9th resistance R 9 is connected with one end E5 of thermistor R11 and 1 pin of processor chips U1, and the other end is connected with 4 pins of processor chips U1 and one end of the 4th capacitor C 4; One end of described the tenth resistance R 10 is connected with 7 pins of processor chips U1 and the other end E4 of thermistor R11; The equal ground connection of the other end of the other end of the 4th capacitor C 4 and the tenth resistance R 10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410009540.6A CN103742942B (en) | 2014-01-08 | 2014-01-08 | Automobile-mounted cigarette lighter with protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410009540.6A CN103742942B (en) | 2014-01-08 | 2014-01-08 | Automobile-mounted cigarette lighter with protection device |
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| Publication Number | Publication Date |
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| CN103742942A true CN103742942A (en) | 2014-04-23 |
| CN103742942B CN103742942B (en) | 2015-07-22 |
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| CN201410009540.6A Active CN103742942B (en) | 2014-01-08 | 2014-01-08 | Automobile-mounted cigarette lighter with protection device |
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| CN201516818U (en) * | 2009-08-10 | 2010-06-30 | 陈庭贵 | Automobile ignition device |
| CN201587351U (en) * | 2010-02-05 | 2010-09-22 | 温州天球电器有限公司 | Car cigarette lighter |
| CN201890176U (en) * | 2010-09-29 | 2011-07-06 | 钱国钧 | Vehicular cigarette lighter with double protection structures |
| CN203704023U (en) * | 2014-01-08 | 2014-07-09 | 温州天球电器有限公司 | Vehicle-mounted cigarette lighter with protection device |
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2014
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| GB1343835A (en) * | 1970-11-13 | 1974-01-16 | Pramaggiore L | Electrical device for lighting cigars and cigarettes |
| US4500774A (en) * | 1983-11-16 | 1985-02-19 | Niles Parts Company, Limited | Car cigar lighter |
| EP0676310A2 (en) * | 1989-12-18 | 1995-10-11 | Valeo Vision | Cigarette lighter, especially for motor vehicles |
| EP0495719A1 (en) * | 1991-01-17 | 1992-07-22 | Valeo Vision | Cigarette lighter, especially for motor vehicles |
| CN2139071Y (en) * | 1992-10-31 | 1993-07-28 | 郑旭成 | Safety cigarette ignitor of automobile |
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| FR2885330A1 (en) * | 2005-05-09 | 2006-11-10 | Valeo Vision Sa | Cigar lighter for instrument panel of motor vehicle, has hollow lighter body with thermal shield which is prolonged by ring surrounding opening of body and is formed by thermoplastic polymer material |
| CN201516818U (en) * | 2009-08-10 | 2010-06-30 | 陈庭贵 | Automobile ignition device |
| CN201587351U (en) * | 2010-02-05 | 2010-09-22 | 温州天球电器有限公司 | Car cigarette lighter |
| CN201890176U (en) * | 2010-09-29 | 2011-07-06 | 钱国钧 | Vehicular cigarette lighter with double protection structures |
| CN203704023U (en) * | 2014-01-08 | 2014-07-09 | 温州天球电器有限公司 | Vehicle-mounted cigarette lighter with protection device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103742942B (en) | 2015-07-22 |
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