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EP0111282A1 - Allume-cigares pour véhicules - Google Patents

Allume-cigares pour véhicules Download PDF

Info

Publication number
EP0111282A1
EP0111282A1 EP83112188A EP83112188A EP0111282A1 EP 0111282 A1 EP0111282 A1 EP 0111282A1 EP 83112188 A EP83112188 A EP 83112188A EP 83112188 A EP83112188 A EP 83112188A EP 0111282 A1 EP0111282 A1 EP 0111282A1
Authority
EP
European Patent Office
Prior art keywords
contact
socket
metal
cap
contact element
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP83112188A
Other languages
German (de)
English (en)
Other versions
EP0111282B1 (fr
Inventor
Andrea Mova
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siette Impianti Elettrici Telefonici Telegrafici & Costruzioni Edili SpA Soc
Original Assignee
Siette Impianti Elettrici Telefonici Telegrafici & Costruzioni Edili SpA Soc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siette Impianti Elettrici Telefonici Telegrafici & Costruzioni Edili SpA Soc filed Critical Siette Impianti Elettrici Telefonici Telegrafici & Costruzioni Edili SpA Soc
Publication of EP0111282A1 publication Critical patent/EP0111282A1/fr
Application granted granted Critical
Publication of EP0111282B1 publication Critical patent/EP0111282B1/fr
Expired legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23Q—IGNITION; EXTINGUISHING-DEVICES
    • F23Q7/00—Incandescent ignition; Igniters using electrically-produced heat, e.g. lighters for cigarettes; Electrically-heated glowing plugs

Definitions

  • the invention relates to an electric cigar lighter for motor vehicles, with a metal socket which can be fastened to the dashboard or to a similar supporting part of the vehicle, with an ignition assembly which essentially consists of a metal sleeve and an insertable part which can be moved into the sleeve and can be displaced against spring force, and which at its front end, which is arranged inside the metal bushing, has a heating disk with a resistance element arranged in a metal contact cap, which, when the ignition module is inserted into the sleeve, is oriented towards the bottom of this bushing, and with a bimetal which is insulated from the bushing -Contact element which is provided with an outer electrical connection part and with which an electrical connection to the resistance element can be established via the contact cap when the ignition module is inserted into the socket against the spring force.
  • the bimetal contact element is designed as a pincer-type contact clamp.
  • the firing assembly is inserted into the metal socket and then the user presses the control button, the firing assembly is against spring force moved forward and thereby the outer edge of the contact cap is gripped by the contact clamp, which holds the entire displaceable part of the ignition assembly until the pincer-like contact clamp opens as a result of heating by the resistance element.
  • the displaceable part springs back into a predetermined position; the ignition assembly can now be pulled out to light a cigarette.
  • a relatively long period of time of approximately 12-18 seconds elapses between the time at which the user of the cigar lighter presses the control button and the time at which the control button springs back and indicates that the lighter has heated up. If the user of the cigar lighter is at the same time the driver of the vehicle, then during this waiting time he must not only pay attention to driving but also to the cigar lighter in order to catch the moment of jumping out and then immediately pull out the lighter. If he waits for a certain time, even if it is only a few seconds, the cooling of the resistance is so great that it is no longer possible to light a cigarette.
  • the invention is therefore based on the object of proposing a simple and functionally designed cigar lighter in which, after the ignition insert or the ignition module has been pressed into the metal socket fastened to the vehicle, the heating disk resistor very quickly reaches the temperature required for lighting a cigarette is heated up without the user having to release the control button for a period of time. It is less dangerous for a driver to hold the steering wheel with one hand and press the control button with the other hand for two or three seconds than to be mentally distracted for a longer period of time and the control button with one hand twice of the cigar lighter to operate, the first M al for pressing of the operating knob and the second time for taking out the Zündstedes.
  • a cigar lighter of the type mentioned at the outset which consists in the bimetal contact element being arranged and designed in such a way that it deforms when heated and from which Contact cap lifts off, and that between the contact cap and the bimetallic contact element there is an insulated elastic element in the socket, which comes into contact with the contact cap when the ignition module is inserted into the socket, is elastically deformable through the contact cap, and finally with the bimetal -Contact element engages, wherein the heat generated by the electrical resistance element and by the current flow through the bimetal contact element, as soon as a predetermined temperature is exceeded, causes a deformation of the bimetal contact element, which cancels its contact with the elastic element and the current flow for electr interrupts the resistance element.
  • the ohmic resistance of the heating disc resistance must be quite low. This leads to a higher current consumption (in the order of 25 to 30 amperes) compared to conventional cigar lighters, but this takes place only for a relatively short period of time.
  • the bimetal contact element only has the task of protecting the cigar lighter from overheating, which would inevitably lead to the destruction of the heating disc resistance within a few seconds if the user depressed the control button too long.
  • the elastic, arranged between the bimetallic element and the contact cap element of the cigar lighter according to the invention prevents damage or destruction of the contact cap by the electric arc, which inevitably arises when the current of the cigar lighter according to the invention is high when the contacts are opened.
  • the energy consumption of the igniter according to the invention is low compared to known devices of this type.
  • the current consumption of 25 to 30 amperes is limited to a duration of approximately two seconds, so that the energy requirement for each ignition process is approximately 50 to 60 ampere seconds is, while in a conventional lighter with a bimetallic contact terminal for each a nzündvorgang a Ener - g i e office required in the order of 120 amperes seconds.
  • the cigar lighter in the embodiment of the invention shown here has a metal bushing 10 with a substantially cylindrical side wall 12 and a bottom wall 14.
  • the metal bushing 10 can be (in a known manner (not shown)) on a dashboard or on a fasten another support part of a vehicle
  • a circumferential flange 16 serves as a stop at the installation site.
  • a pull-out ignition insert or an ignition assembly 18 is inserted into the metal bushing 10.
  • This assembly 18 consists of a metal sleeve 20 which is slidably inserted into the socket 10.
  • a small metal cup 22 with a bottom wall 24 is slidably inserted in the sleeve 20.
  • a small metal spindle 26 which has a shaft 28 which extends through a central bore 30 in the bottom wall 24.
  • a metal contact cap 34 is attached to this shaft 28 and has a converging outer edge 36 toward the inside.
  • a heat-insulating washer 32 is inserted between the contact cap 34 and the bottom wall 24 of the cup 22.
  • An electrical resistance element 38 which is formed in a known manner from a flat wire bent into a spiral, is held in the contact cap 34 in an electrically insulated manner.
  • the middle end of the resistance element 38 is electrically connected to the shaft 28, which fixes this element in a slot 40 inserted into the shaft, while the outer end of the resistance element 38 is electrically connected to the contact cap 34.
  • the edge 36 of the contact cap 34 projects forward relative to the resistance element 38.
  • the metal spindle 26 has an A b-section provided with a thread 42, onto which a hub 44 of an operating button 46 made of insulating plastic is screwed.
  • the B-e dienungsknopf 46 has an outer shell 48 which forms together with the hub 44 an annular throat.
  • the metal sleeve 20 has a part 50 with an enlarged diameter, which is surrounded by the jacket 48. Between the part of the sleeve 20 inserted into the socket 10 and the widened part 50, a radial wall part 52 is formed which serves as an intercepting shoulder for one end of a helical spring 54, the other end of which rests against the bottom of the ring groove of the operating button 46.
  • the displaceable part which essentially consists of the spindle 26, the contact cap 34 with the inserted resistance element 38 and the operating button 46, is pressed back into the rest position shown in FIG. 1 by the spring 54, in which when the metal sleeve 20 is inserted into the socket 10, the contact cap 34 assumes a retracted position in the sleeve, see FIG. 1.
  • the plate 56 has a bore 60 into which a tubular extension 62, also machined out of the bottom wall 14, engages for centering.
  • attachment 64 is a body 68 made of the same material, e.g. made of steatite.
  • a contact lug or a contact plate 66 for the electrical connection to the outside and one end of a strip or plate-shaped bimetallic contact element 70 are fastened between the attachment 64 and the body 68.
  • an elastic element 72 here an elastic metal strip or metal plate, lies against that surface of the body 68 which lies opposite the surface directed towards the extension 64.
  • the package consisting of the shoulder 64, the body 68, the contact element 70, the contact plate 66 and the elastic element 72 is held together by a hollow rivet 74.
  • the two elements 70 and 72 lie transversely or diametrically and one behind the other in a bottom part of the metal bushing 10, which is provided with opposite ventilation openings 76 and 78.
  • the two elements 70 and 72 on the metal bushing 10 on their located at the bottom ends in relation to the accompanying Ab - formations, for example, fixed by clamping.
  • the bimetal contact element 70 is electrically connected to the connection plate 66.
  • the elastic element 72 is electrically connected to the rivet 74, but is insulated both from the socket 10 and, in the rest position, from the bimetal contact element 70.
  • the two strip-shaped or plate-shaped elements 70 and 72 have corresponding, mutually facing contact pieces 80 and 82 at their free ends in the opening 76.
  • the bimetallic contact element 70 is deformable under the action of heat and then leads to a bend to the bottom wall 14 hon or to the right in FIGS. 1 and 3 off.
  • the movable member comprising the contact cap 34 is in a retracted position with respect to the elastic member 72 by the action of the spring 54.
  • the operating button 46 is pressed, whereby the movable part and the contact cap 34 move forward against the force of the spring 54, that is shown in FIGS. 1 and 3 to the right, be moved.
  • the contact cap 34 thereby occurs from the M etallmuffe 20 out.
  • the protruding outer edge 36 of the contact cap 34 comes into contact with the elastic element 72 and bends it to the right - in relation to the Figg. 1 and 3 - until the contact piece 82 of this element comes into contact with the contact piece 80 of the bimetal contact element 70, as is shown by the solid lines in FIG. 3.
  • the elastic element 72 takes over the function of an electrical interconnection element between the bimetallic contact element 70 and the outer edge of the electrical resistance element 38.
  • the center of the resistance element 38 is via the spindle 26 of the cigar lighter, via the cup 22, the metal sleeve 20 and the metal socket 10, which in turn is provided with a contact tongue 84, is electrically connected to ground.
  • the resistance element 38 begins to heat up. Its ohmic value is chosen so that the resistance glows within one to two seconds.
  • a resistance value of, for example, 0.6 ohms can be selected, so that there is occasionally a current consumption of over 25 A. Such a current is permissible if it flows only for the period of time required to make the resistance element 38 glow while the control button 46 is depressed. If, on the other hand, the user holds the control button pressed in longer than necessary, this would contradict Stand element 38 is damaged after five to ten seconds.
  • the heat of the resistance element 38 is transferred to the bimetal contact element 70, both by A b radiation, by heat conduction and by convection as a result of the air flow occurring through the openings 76 and 78.
  • the electrical current that flows through this element also contributes to the heating of the bimetal contact element 70. If the element 70 reaches a predetermined target temperature or, in other words, a predetermined connection time of the resistance element 38, which does not exceed two seconds, is reached, then the electrical connection between the two elements 70 and 72 or, as a result of the deformation of the bimetal contact element 70, interrupted between the contact pieces 80 and 82, thereby opening the circuit.
  • the shape of the bimetallic contact element 70 in the deformed state is shown in broken lines in FIG. 3 and is designated 70a.
  • the user can pull the igniter out of the metal socket 10 and put the cigarette on in the usual way ignite by holding the resistance element 38, which remains glowing for a few seconds, to the cigarette. As soon as the heat source formed by the resistance element 38 is eliminated, the bimetal contact element 70 returns to its shape and position shown in FIG. 1.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Passenger Equipment (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
EP83112188A 1982-12-14 1983-12-03 Allume-cigares pour véhicules Expired EP0111282B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI1982U23697U IT8223697U1 (it) 1982-12-14 1982-12-14 Accendisigari elettrico rapido per autoveicoli
IT2369782U 1982-12-14

Publications (2)

Publication Number Publication Date
EP0111282A1 true EP0111282A1 (fr) 1984-06-20
EP0111282B1 EP0111282B1 (fr) 1986-07-09

Family

ID=11209230

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83112188A Expired EP0111282B1 (fr) 1982-12-14 1983-12-03 Allume-cigares pour véhicules

Country Status (3)

Country Link
EP (1) EP0111282B1 (fr)
DE (2) DE3343832A1 (fr)
IT (1) IT8223697U1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999043511A1 (fr) * 1998-02-27 1999-09-02 Valeo Vision Allume-cigares a languette de securite, notamment pour vehicule automobile

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2790061A (en) * 1954-09-21 1957-04-23 Automatic Devices Corp Electric cigar lighter
FR1255462A (fr) * 1960-01-27 1961-03-10 Allume-cigarettes
FR1477588A (fr) * 1966-03-01 1967-04-21 Allume-cigarette électrique
FR1533064A (fr) * 1967-08-01 1968-07-12 American Mach & Foundry Allume-cigare électrique
FR1552250A (fr) * 1967-11-24 1969-01-03
FR2076977A5 (fr) * 1970-11-13 1971-10-15 Pramaggiore Luigi
FR2371641A1 (fr) * 1976-11-20 1978-06-16 Schoeller & Co Elektrotech Allume-cigare electrique avec interrupteur bilame constitue par un disque a declic
FR2444587A1 (fr) * 1978-12-19 1980-07-18 Pramaggiore Luigi Perfectionnements aux allume-cigarettes, particulierement pour les vehicules a moteur
FR2487271A1 (fr) * 1980-07-23 1982-01-29 Iao Industrie Riunite Spa Allume-cigare electrique, notamment pour vehicules automobiles
FR2502078A1 (fr) * 1981-03-18 1982-09-24 Seima Allume-cigare

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2126710A (en) * 1934-10-08 1938-08-16 Philip E Ashton Cigar lighter
US2207601A (en) * 1936-11-06 1940-07-09 Shakespeare Products Co Igniter
US2262484A (en) * 1937-04-01 1941-11-11 Automatic Devices Corp Cigar lighter
US2248409A (en) * 1937-12-28 1941-07-08 Automatic Devices Corp Cigar lighter
US2773164A (en) * 1954-06-11 1956-12-04 Lawrence W Busbin Cigar and cigarette lighter
US2948800A (en) * 1957-10-11 1960-08-09 Lawrence E Fenn Cigar lighter
US3381109A (en) * 1966-01-03 1968-04-30 Joseph Youhouse Electric cigar lighter

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2790061A (en) * 1954-09-21 1957-04-23 Automatic Devices Corp Electric cigar lighter
FR1255462A (fr) * 1960-01-27 1961-03-10 Allume-cigarettes
FR1477588A (fr) * 1966-03-01 1967-04-21 Allume-cigarette électrique
FR1533064A (fr) * 1967-08-01 1968-07-12 American Mach & Foundry Allume-cigare électrique
FR1552250A (fr) * 1967-11-24 1969-01-03
FR2076977A5 (fr) * 1970-11-13 1971-10-15 Pramaggiore Luigi
FR2371641A1 (fr) * 1976-11-20 1978-06-16 Schoeller & Co Elektrotech Allume-cigare electrique avec interrupteur bilame constitue par un disque a declic
FR2444587A1 (fr) * 1978-12-19 1980-07-18 Pramaggiore Luigi Perfectionnements aux allume-cigarettes, particulierement pour les vehicules a moteur
FR2487271A1 (fr) * 1980-07-23 1982-01-29 Iao Industrie Riunite Spa Allume-cigare electrique, notamment pour vehicules automobiles
FR2502078A1 (fr) * 1981-03-18 1982-09-24 Seima Allume-cigare

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999043511A1 (fr) * 1998-02-27 1999-09-02 Valeo Vision Allume-cigares a languette de securite, notamment pour vehicule automobile
FR2775451A1 (fr) * 1998-02-27 1999-09-03 Valeo Vision Allume-cigares a languette de securite, notamment pour vehicule automobile
US6130409A (en) * 1998-02-27 2000-10-10 Valeo Vision Cigar lighter with a safety blade terminal, in particular for motor vehicle

Also Published As

Publication number Publication date
IT8223697V0 (it) 1982-12-14
IT8223697U1 (it) 1984-06-14
DE3343832A1 (de) 1984-06-14
DE3364445D1 (en) 1986-08-14
EP0111282B1 (fr) 1986-07-09

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