JPH09286267A - Cigarette lighter for automobile - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make a firing action of a cigarette simple enough as well as to improve the durability in a light-up part. SOLUTION: An induction heating coil 11 is rolled on an outer boundary around the tip part of a cigarette holder 3, and a high-frequency current is fed to this induction heating coil 11 from an induction heating controller 14 via a distribution cable. This cigarette holder 3 is provided with two fixed contacts 15 and 16 to be electrically connected to a moving contact 6 at a time when it is moved by dint of pressing force in the longitudinal direction of a cigarette, while one end of this fixed contact 15 is connected to a battery 17, and likewise one end of the fixed contact 16 is connected to an induction heating controller 14. In brief, if the moving contact 6 is made to contact with these fixed contacts 15 and 16, electric power is fed to this induction heating controller 14 from the battery 14, and further a high-frequency current is generated by an inverter circuit or the like in this controller 14, therefore this current is made so as to be fed to the induction heating coil 11 in consequence.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automobile cigarette lighter, and more particularly to an automobile cigarette lighter characterized by an ignition portion.

[0002]

2. Description of the Related Art Conventionally, various types of accessories are mounted on automobiles.

For example, a cigarette lighter, a radio, an air conditioner, etc., and in recent years, a CD (compact disc player), a portable TV, a navigation system, etc. are also mounted to realize a comfortable vehicle interior space.

By the way, in the above cigarette lighter,
It is composed of a writer socket containing a bimetal, and a writer plug having a heater part attached to the writer socket.

Then, as shown in FIG. 3, the writer plug 51 is mounted in a cylindrical writer socket 52. Then, by pushing the lighter plug 51 from the mounting position in the direction of the arrow in the figure by a predetermined amount, the nichrome wire 53 constituting the heater portion provided at the tip of the lighter plug 51 is energized, and the nichrome wire 53 is heated to a red hot state. Then, the writer plug 51 is returned to the mounting position by a not-shown bimetal provided in the writer socket 52.

That is, when the user lights a cigarette, the user usually pushes in the writer plug 51 mounted on the writer socket 52, the heater 53 is heated to the red heat state, and the writer plug 51 returns to the mounting position. When the writer plug 51 returns to the mounting position, the writer plug 51 is pulled out from the writer socket 52, the cigarette is ignited by the red-hot nichrome wire 53, and the writer plug 51 is returned to the mounting position of the writer socket 52.

[0007]

However, in the conventional cigarette lighter, as described above, since the nichrome wire 53 is repeatedly heated by energization, the nichrome wire 53 is deteriorated and broken, or the nichrome wire 53 is broken. There is a problem that it jumps out from the tip.

Further, the repeated heating by energization may cause a contact failure between the nichrome wire 53 and the energizing contact.

Further, as described above, in order to ignite a cigarette, (1) the pushing operation of the writer plug 51, (2) the extracting operation of the writer plug 51, (3) the ignition operation of the cigarette, 4) Since it is necessary to re-attach the writer plug 51 to the writer socket 52, there is also a problem that the ignition operation becomes complicated.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a cigarette lighter for an automobile, which has a simple ignition operation and can improve the durability of the ignition portion.

[0011]

A cigarette lighter for an automobile according to the present invention is a cigarette lighter for an automobile, which is provided in a vehicle interior and is powered by an on-vehicle power source to ignite a cigarette. A high-frequency magnetic field generating means for generating a high-frequency magnetic field is provided in the tip portion of the means, and an ignition means having a magnetic member provided in the tip portion of the housing means and having induction heating by the high-frequency magnetic field.

In the automobile cigarette lighter according to the present invention, the cigarette is brought into contact with the magnetic member of the ignition portion, the high-frequency magnetic field is generated in the tip portion of the accommodating means, and the magnetic member is induction-heated to induce induction. The cigarette is ignited by the heated magnetic member.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a configuration diagram showing a configuration of a cigarette lighter according to a first embodiment of the present invention.

(Structure) As shown in FIG. 1, a cigarette lighter 1 of the present embodiment has a substantially cylindrical cigarette holder 3 on which a cigarette 2 is mounted, and, for example, stainless steel provided at the tip of the cigarette holder 3. And an ignition part 4 made of a magnetic material made of steel (SUS). The contact portion of the ignition part 4 with the cigarette 2 has a diameter that is ½ or less of the diameter of the cigarette 2.

The ignition part 4 is supported by a support rod 5 communicating with the outside of the cigarette holder 3 through a hole 3b provided in the bottom 3a of the cigarette holder 3, and the movable contact 6 is provided at the other end of the support rod 5. Is provided. The support rod 5 is biased so as to be movable in the longitudinal direction of the cigarette 2 by a spring 7 having both ends fixed to the upper end surface of the movable contact 6 and the outer surface of the bottom portion 3a of the cigarette holder 3. It has become.

An induction heating coil 11 is wound around the outer periphery of the tip of the cigarette holder 3, and the induction heating coil 11 is covered with a substantially cylindrical exterior member 12 for insulation. A high frequency current is supplied to the induction heating coil 11 from the induction heating control device 14.

On the other hand, there are provided fixed contacts 15 and 16 which are electrically connected to the movable contact 6 when the cigarette 2 is moved by pressing in the longitudinal direction, and one end of the fixed contact 15 is connected to the battery 17. One end of the fixed contact 16 is connected to the induction heating control device 14. That is, when the movable contact 6 contacts the fixed contacts 15 and 16, the battery 17
The induction heating control device 14 is supplied with electric power from the induction heating control device 14, and the induction heating control device 14 generates a high frequency current by an inverter circuit or the like (not shown) and supplies it to the induction heating coil 11.

The induction heating controller 14 has a control circuit (not shown) for controlling the supply of high frequency current. Further, the position of the ignition part 4 moved to supply the high frequency current to the induction heating coil 11 is arranged substantially in the center of the induction heating coil 11.

(Operation) Next, with reference to FIG. 1, the operation of the present embodiment having such a configuration will be described. When the cigarette 2 is inserted into the cigarette holder 3 and the cigarette 2 is slightly pushed, the support rod 5 moves to the fixed contacts 15 and 16 side, and the ignition part 4 is positioned substantially in the center in the longitudinal direction of the induction heating coil 11. Along with this movement, the movable contact 6 and the fixed contact 1
5, 5 and 16 contact each other, and the electric power is supplied from the battery 17 to the induction heating control device 14.

The induction heating controller 14 supplies a high frequency current to the induction heating coil 11. When a high-frequency current flows through the induction heating coil 11, a magnetic force acts on the ignition part 4, and even if the pressing by the cigarette 2 is stopped, the ignition part 4 overcomes the biasing force of the spring 7 by the magnetic force, and the induction heating coil is centered. Retained.

On the other hand, the high-frequency magnetic field generated by the high-frequency current flowing through the induction heating coil 11 generates an induced current on the surface of the ignition part 4, and is converted into Joule heat by the resistance of the ignition part 4 itself, and the surface of the ignition part 4 is converted. Only the vicinity is heated rapidly.

Even when the energy is continuously applied to the ignition part 4 as described above, when the Curie temperature of the material of the ignition part 4 is exceeded, the magnetic permeability extremely decreases and becomes close to the magnetic permeability of air. Since the supply of energy is automatically reduced, the ignition part 4 does not melt down.

Since there is a correlation between the temperature of the ignition part 4 and the magnetic permeability, the induction heating control device 14 calculates the temperature of the ignition part 4 by detecting the resonance frequency. Then, the induction heating control device 14 stops the supply of the high frequency current after the elapse of a predetermined temperature and time.

Since the resonance frequency of the high frequency magnetic field for heating is determined by the equivalent inductance due to magnetic coupling, it can be removed from the audible frequency range by optimizing the structure and matching.

When the supply of the high frequency current is stopped, the holding force at the central portion in the longitudinal direction of the induction current coil 11 of the ignition part 4 due to the magnetic force disappears, and the support rod 5 is moved to the initial position by the biasing force of the spring 7. Return. As a result, the movable contact 6 is separated from the fixed contacts 15 and 16, and the supply of electric power to the induction heating control device 14 is automatically stopped.

(Effect) As described above, in this embodiment, since the ignition part 4 is made of metal such as SUS having excellent heat resistance and corrosion resistance, excellent durability can be realized without deterioration due to repeated heating. .

Further, the cigarette ignition operation can be performed by two operations such as insertion and removal of the cigarette into and from the cigarette lighter, and the conventional complicated operation can be simplified.
Also, since the ignition part is less than 1/2 of the diameter of the cigarette,
It can be easily insulated, and the degree of freedom of installation location can be improved much more than before.

FIG. 2 is a configuration diagram showing the configuration of a cigarette lighter according to the second embodiment of the present invention.

Since the second embodiment is almost the same as the first embodiment, only different points will be described, the same components will be denoted by the same reference numerals, and description thereof will be omitted.

As shown in FIG. 2, the cigarette lighter according to the present embodiment has a configuration in which the battery 17 of the cigarette lighter according to the first embodiment is replaced by an electric double layer capacitor 18 via an induction heating control device 14. Induction heating coil 12
Is supplying power to. Other configurations and operations are the same as those in the first embodiment.

The electric double layer capacitor 18 is used for the battery 1
The power density is 10 times or more higher than that of the battery No. 7, and the internal resistance is small, and thus the charging efficiency is high, so that rapid charging is possible and the power consumed in a short time can be efficiently charged.

Therefore, the electric double layer capacitor 18 is used as a power source for heating in a short time such as ignition of a cigarette.
Can be said to be suitable.

The other effects are the same as those of the first embodiment.

[0034]

As described above, according to the cigarette lighter for an automobile of the present invention, the magnetic member of the ignition part is brought into contact with the cigarette, a high frequency magnetic field is generated in the tip of the storing means, and the magnetic member is induction-heated. Then, since the cigarette is ignited by the induction-heated magnetic member, the ignition operation is simple and the durability of the ignition portion can be improved.

[Brief description of drawings]

FIG. 1 is a configuration diagram showing a configuration of a cigarette lighter according to a first embodiment of the present invention.

FIG. 2 is a configuration diagram showing a configuration of a cigarette lighter according to a second embodiment of the present invention.

FIG. 3 is a configuration diagram showing a configuration of a conventional cigarette lighter.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Cigar lighter 2 ... Tobacco 3 ... Tobacco holder 4 ... Ignition part 5 ... Support rod 6 ... Movable contact 7 ... Spring 11 ... Induction heating coil 12 ... Exterior member 14 ... Induction heating control device 15, 16 ... Fixed contact 17 ... Battery 18 … Electric double layer capacitors

Claims (4)

[Claims] 1. A cigarette lighter for an automobile, which is provided in a vehicle compartment and is supplied with electric power from a vehicle-mounted power source to ignite a cigarette. A storing means for storing the cigarette, and a high-frequency magnetic field for generating a high-frequency magnetic field in a tip portion of the storing means. A cigarette lighter for an automobile, comprising: a magnetic field generating means; and an igniting means having a magnetic member that is provided in a tip portion of the housing means and is induction-heated by the high-frequency magnetic field. 2. The ignition means comprises a support member for supporting the magnetic member at the tip, and a power supply control means for controlling the power supplied to the high frequency current supply means at the other end of the support member, The high-frequency magnetic field generating means includes a high-frequency current supplying means for supplying a high-frequency current and a coil for supplying the high-frequency current to generate the high-frequency magnetic field, and at least the high-frequency magnetic field determined by the coil and the magnetic member. The cigarette lighter for an automobile according to claim 1, wherein the magnetic member is induction-heated by a resonance frequency, the temperature of the magnetic member is detected based on the resonance frequency, and the supply of the high-frequency current is controlled. 3. The cigarette lighter for an automobile according to claim 2, wherein the resonance frequency is a frequency band other than the audible frequency range. 4. The on-vehicle power source is a battery or an electric double layer capacitor.
Or the cigarette lighter for an automobile according to any one of 3.