JPH04150813A - Ignition exothermic mechanism - Google Patents

Abstract

PURPOSE:To prevent ignition resulting from a mis-operation, by providing an electric circuit preventing mis-operation in an igniter. CONSTITUTION:An igniter is composed of a piezoelectric element 7 generating electricity by a pressure like a strike and an electric circuit to stabilize electric pulses fed to a thermal transmitter and reduce unnecessary electric pulses by mutually connecting a sensor and the transmitter. And on the other hand, when a vessel with a heating ability is charged with water, a fluid chiefly made of water, and materials to be heated made of the mixture of the above and a solid, electric current is conducted through the liquid contents 2 existing between sensitive 11 electrodes. And further, sparks are discharged between electrodes of bulbs by the electric potential fed to the ignition bulb 9 in the thermal transmitter and the ignition agent 9e, an insulating material applied on the electrodes or a high resistance, is ignited. Subsequently, a fine metal wire 9c charged in the bulb is ignited and heated and it is effectively transferred to the thermal energy.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an ignition device for igniting a heating element.

The present invention also relates to a container with a heating function incorporating the igniter, and particularly to a container with a heating function that includes an electric circuit to prevent ignition due to malfunction.

Furthermore, the present invention relates to a heat conversion device that substantially converts the electrical energy used in the ignition device and the container with a heating function into thermal energy and generates heat at a high temperature.

(Prior Art and Problems to be Solved by the Invention) Conventionally, as a heating container that utilizes heat generated by a self-combustion reaction of a heat generating agent consisting of a mixture of an oxygen supply side and a combustible agent, for example, No. and Utsukai Showa 63-4
There are issues such as No. 2089. In these heating containers, the exothermic agent is ignited using a fuse or filament type electric heater connected to the exothermic agent.

However, in these heating containers, upon ignition,
In order to ignite the fuse, a separate igniter such as a match, a lighter, or a battery to operate a filament-type electric heater is required, which is very inconvenient to use.
In particular, with a configuration in which the fuse is ignited, there are problems such as difficulty in using the heating container outdoors in rainy weather or strong winds.

The present inventors have already proposed a method in which a heating element is placed in contact with a heating agent and the heating agent in order to solve the above-mentioned problems with the prior art and to improve ignition performance, caloric efficiency, and heating rate. We have proposed a heating container that is composed of an ignition agent that is easier to ignite than a heat-generating agent, and an igniter disposed near the ignition agent.

For example, in Japanese Patent Application No. 2-132332 by the present inventors,
A piezoelectric element that generates electricity due to pressure such as impact, a hammer member that applies impact to this piezoelectric element, and a container that senses that it is filled with water or a fluid whose main component is water. We proposed a container with a heating function, which is equipped with a sensing electrode, an ignition discharge electrode for discharging electricity, and an avoidance discharge electrode.

However, in the case of this container with a heating function, the high voltage generated from the piezoelectric element causes unnecessary electrical noise caused by electrostatic induction, electric M1 induction, current leakage, radiation, etc., and the distance between the sensing electrodes increases. A voltage is applied between the ignition discharge electrodes even though they are not electrically connected. If this voltage becomes extremely large, even if the container is not filled with a substance to be heated such as water, the ignition operation will cause sparks to be discharged between the ignition discharge electrodes and ignite the heating element, resulting in a so-called malfunction. It was undesirable.

The inventors of the present invention have conducted extensive research in light of these circumstances, and have found that if the amount of electricity generated by a piezoelectric element is small (i.e., only a relatively small voltage is generated for a piezoelectric element), it is possible to use a piezoelectric element without an avoidance discharge electrode. It was discovered that the generated electricity is absorbed within the piezoelectric element or in the air, and does not discharge between the sensing electrodes or destroy the insulation part of the electric circuit. When a low-voltage piezoelectric element is used, there is no need to provide an avoidance discharge electrode, and the voltage generated by the piezoelectric element is low, so it is within the permissible range of withstand voltage strength of electronic components. This invention has invented a container with a heating function that is equipped with an electric circuit that stabilizes pulses and reduces unnecessary electrical pulses to prevent ignition due to malfunction.

On the other hand, when using a piezoelectric element like this, which generates only a low voltage, it is difficult to discharge with a conventional ignition discharge electrode, so as a result of intensive research as an alternative ignition device, we decided to use a thin metal wire with oxygen. sealed in a container with
By using a valve consisting of a pair of spaced apart electrodes whose surfaces are coated with an igniter, which is an insulator or high-resistance material, even low voltages generated by piezoelectric elements can be used. The inventors have discovered that energy can be substantially converted into thermal energy and generates heat at high temperatures, and have invented the heat conversion device of the present invention.

Furthermore, by using this heat conversion device, the present inventors have provided an ignition device that can substantially convert electrical energy into thermal energy, generate heat at a high temperature, and effectively ignite a heating element. They discovered that this could be done, and invented the ignition device of the present invention.

(Means for Solving the Problems) The present invention has been made in view of the above-mentioned problems and objects.

(1) First, the ignition device of the present invention is an ignition device for igniting a heating element, and the ignition device includes: a piezoelectric element that generates electricity by pressure such as a striking force; and a piezoelectric element that applies pressure to the piezoelectric element. a sensing device that senses whether or not a predetermined amount of the substance to be heated, which is heated by the heating element, is filled inside a container to be housed; a heat conversion device that substantially converts electrical energy generated by the piezoelectric element into heat energy and generates heat at a high temperature when it senses that a heating substance is filled; the piezoelectric element, the sensing device, and the heat conversion device; and an electric circuit that interconnects the heat exchanger and the heat exchanger, stabilizes the electric pulses supplied to the heat conversion device, and reduces unnecessary electric pulses.

(2) The container with a heating function of the present invention also includes a heating element for heating a substance to be heated, which is made of water, a fluid mainly composed of water, or a mixture of these and a solid, and which is housed in the container. and a heating function container comprising an ignition mechanism for causing the heating element to generate heat, the ignition mechanism comprising: a piezoelectric element that generates electricity by pressure such as a striking force; and a pressure application that applies pressure to the piezoelectric element. an apparatus, a sensing device for sensing whether a predetermined amount of the substance to be heated is filled inside the container, and a case where the sensing device senses that the predetermined amount of the substance to be heated is filled inside the container; To,
The piezoelectric element substantially converts electrical energy generated by the piezoelectric element into thermal energy and generates heat at a high temperature.The piezoelectric element, the sensing device, and the thermal converting device are interconnected and the The converter is characterized by comprising an electric circuit that stabilizes the electric pulses supplied to the converter and reduces unnecessary electric pulses to prevent ignition due to malfunction.

(3) Furthermore, the heat conversion device of the present invention is a heat conversion device that substantially converts electrical energy into thermal energy and generates heat at a high temperature, and the heat conversion device converts a thin metal wire into a container together with oxygen. The bulb is characterized by being comprised of a pair of spaced apart electrodes which are enclosed and whose surfaces are coated with an igniter that is an insulator or a high-resistance material.

(4) Furthermore, the ignition device of the present invention is an ignition device for igniting a heating element, and the ignition device includes: a piezoelectric element that generates electricity by pressure such as a striking force; The piezoelectric element is characterized by comprising: the heat conversion device according to the above (3) which converts into thermal energy and generates heat at high temperature; and an electric circuit connecting the piezoelectric element and the heat conversion device.

(Function) (1) The ignition device of the present invention generates a voltage of several thousand volts by striking the piezoelectric element, and generates electrostatic induction, electromagnetic induction, current leakage, etc. through a malfunction prevention electric circuit. Unnecessary electrical noise caused by this is reduced, and the potential and electrical pulses are stabilized.

Therefore, if there is no heated substance between the sensing electrodes, the voltage of several thousand volts generated by the piezoelectric element will be insulated by the sensing electrodes and will not be transmitted to the heat conversion device. Since the voltage is suppressed to a low voltage of about several tens to several volts, spark discharge does not occur between the electrodes of the heat conversion device, and ignition and heat generation in the heat conversion device is prevented.

On the other hand, when a substance to be heated is present between the sensing electrodes, electricity generated by the piezoelectric element is supplied to the heat conversion device via the sensing electrodes, spark discharge occurs between the electrodes of the heat conversion device, and heat is generated. When the conversion device ignites and generates heat, electrical energy is converted into thermal energy, which can heat the heating element and ignite it.

(2) In the heating function container of the present invention incorporating such an ignition device, when the heating function container is not filled with contents, several thousand volts generated by impacting the piezoelectric element can be used. The voltage is not transmitted to the heat conversion device because the gap between the sensing electrodes is large and spark discharge is not possible, and moreover, the voltage is not transmitted to the heat conversion device due to the large gap between the sensing electrodes, and moreover, the voltage is not transmitted to the heat conversion device through the malfunction prevention electric circuit. Electrical noise is reduced, the electrical pulse is stabilized, and only a stable, low voltage of several tens to several volts is applied to the electrodes of the thermal conversion device, so spark discharge between the electrodes of the thermal conversion device does not occur. (Ignition and heat generation in the heat conversion device are reliably prevented, and ignition of the heating element is avoided.

On the other hand, when a container with a heating function is filled with a material to be heated, which is made of water, a fluid mainly composed of water, or a mixture of these and a solid, and has a sufficiently inferior insulating property compared to air, the gap between the sensing electrodes Electricity conducts through the liquid contents present in the heat converter and is supplied to the heat converter, so a spark discharges between the electrodes of the heat converter and the heat converter ignites and generates heat, which generates electrical energy. is converted into thermal energy,
The heating element can be heated and ignited.

Therefore, in the present invention, if the container with a heating function is not filled with contents, does not have a predetermined amount of contents, or is filled only with dry materials, it is possible to prevent the container from igniting inadvertently. Even when the operation is performed, the heating element does not generate heat, and is configured so that heating is performed only when a predetermined amount of an appropriate amount of contents is filled.

(3) Furthermore, in the heat conversion device of the present invention, the voltage supplied to the ignition bulb causes spark discharge between the electrodes of the bulb, and the ignition agent, which is an insulator or a high-resistance material applied to the electrodes, ignites. Subsequently, the thin metal wire enclosed within the bulb ignites and generates heat, thereby effectively converting electrical energy into substantially thermal energy.

(Example) Hereinafter, the heating function container of the present invention will be described in more detail based on an example of the accompanying drawings.

As shown in FIGS. 1 and 5, a heating element container 3 also made of metal is provided at the bottom of a substantially cylindrical container body 1 made of metal, preferably steel. 5 is accommodated. A heat insulating body 4 is attached below the heating element 5, a recess 4a for accommodating the ignition valve 9 is fitted in the upper central part of the heat insulating body 4, and a support member 9a for supporting the ignition valve 9 is fitted in the central part. Through holes 4b are formed respectively.

Furthermore, a power generation board 14 is disposed below this heat insulator 4, and a through hole 1 formed in the center of this power generation board 14 is provided.
A support member 9a that supports the ignition valve 9 is inserted and fitted through the through hole 4b of the heat insulator 4 and the ignition valve 9 is housed in the recess 4a of the heat insulator 4.

In addition, as shown in FIGS. 1 and 2, the power generation board 14
A piezoelectric element 7 is supported above via a support member 7a so as to be parallel to a line passing through the center thereof.

Furthermore, in order to strike the one end 7b of the piezoelectric element 7, the hammer member 8 is inserted into the supporting member 1 via the plate spring 13.
3a, it is fixed on the power generation board 14 so as to be perpendicular to the line passing through the center.

On the other hand, on the power generation board 14, two sensing electrodes 11 are provided near both outer ends on a line passing through the center thereof, as will be described later.

Then, the ignition bulb 9, piezoelectric element 7, and sensing electrode 11 are interconnected via the conductive wire 15 so as to constitute an electric circuit as shown in FIG. Specifically, loss resistance R1, leakage resistance R2, R3, bypass capacitor C
The third
Connect to form the electrical circuit shown in the diagram. It is preferable to use the piezoelectric element 7 that generates a voltage of about several hundred to several thousand volts, which is relatively low for a piezoelectric element.

In this case, R1 reduces the voltage applied to the ignition valve as follows: V2=V, xR2/(R1+R2), and R2 causes the current to leak, thereby stabilizing the potential in ■2, and R3 increases the current. By leaking, the potential of ■ is stabilized, and furthermore, C1,
C2 allows unnecessary signals to be bypassed.

Therefore, a voltage of approximately several thousand volts generated by the piezoelectric element 7 is transmitted through this malfunction prevention circuit to cause water, a fluid mainly composed of water, or a mixture of these and a solid to be generated between the sensing electrodes 11. When there is an object to be heated, a voltage of about several hundred volts is stably supplied to the ignition valve 9. On the other hand, when there is no object to be heated between the sensing electrodes 11, unnecessary electrical noise generated by electrostatic induction, electromagnetic induction, current leakage, radiation, etc. is reduced to about several volts, and the ignition valve 9 The voltage applied is extremely low (
Therefore, no discharge occurs between the electrodes of the ignition bulb 9, and ignition is avoided.

Even if such a malfunction prevention circuit is not provided, when a heated object is present between the sensing electrodes, the voltage of several thousand volts generated by the piezoelectric element will cause the electrical resistance of the heated object between the sensing electrodes to cause the ignition valve to between the electrodes, it drops to a few hundred volts. Moreover, in this case, even when there is no object to be heated, a voltage of about 100 to 300 μ is loaded between the electrodes of the ignition valve due to unnecessary electrical noise, and the environment such as temperature and humidity and the ignition operation Due to the difference in voltage, including the variations between each sensing electrode, it becomes difficult to clearly determine whether there is a heated object between the sensing electrodes, and as a result, even if there is no heated object between the sensing electrodes, ignition often occurs. This can lead to malfunctions.

Therefore, it is important to provide the malfunction prevention circuit of the present invention as described above.

Note that the electric circuit shown in FIG. 3 merely shows one embodiment, and as long as the electric circuit functions as described above, a simpler circuit such as that shown in FIG. 8 may be used. ,
Alternatively, as shown in Figures 10 to 12, a more effective circuit such as a temperature sensor or thermostat that prevents the heated substance from operating below a predetermined temperature may be used. Of course it is possible.

In addition, as shown in Figure 6, the ignition valve is made of metal,
A cylindrical valve container 9, preferably made of aluminum or the like
A thin metal wire 9c made of an easily combustible metal such as tungsten, iron foil, or aluminum is enclosed in the tube 9b together with oxygen, and discharge electrodes 9d are spaced apart from each other. Further, the discharge electrode 9d is provided with an ignition agent 9e made of an insulator or a high resistance material such as a zirconium ignition agent.
is coated. As a result, the discharge electrodes 9d, 9
d is insulated with the igniter 9e to prevent short-circuiting due to the thin metal wire inside the bulb, so that when igniting, no discharge occurs between the discharge electrodes 9d and 9d or between the discharge electrode 9d and the thin metal wire 9c. , the ignition agent 9C ignites, and the thin metal wire 9c
ignites and burns, in the valve container 9b,
The structure is such that electrical energy is substantially converted into thermal energy, and the thin metal wire 9c instantly generates heat at a high temperature (1000° C. or higher), thereby igniting the heating element 5.

It goes without saying that the shape of this bulb can be selected as appropriate depending on the shape of the heating element 5 and the like.

On the other hand, as shown in FIGS. 1 and 5, the container body 1
A bottom cover 16 is rotatably attached to the bottom of the
A ratchet gear 2I having teeth 21a formed in one direction on its inner periphery is fixed to the bottom cover 16 by a fixing member 21b at the center thereof. A ratchet claw 20 is mounted inside this ratchet gear 21 so as to be rotatable about the center of the bottom cover 16 about an axis 16a. The ratchet pawl 20 has a plurality of pawl portions 20a protruding from the ratchet pawl 20.
are adapted to mesh with teeth 21a formed on the inner periphery of the ratchet gear 21 (see FIG. 4).

Further, a trigger member 12 is fixed to the upper center portion of the ratchet pawl 20. This trigger member 12 has a plurality of protrusions 12a formed radially, and when the trigger member 12 rotates, the protrusions 12a touch one end 13b of the leaf spring 13 of the hammer member 8. (See FIG. 2). Note that these members are molded from an insulating material such as synthetic resin so that electricity from the piezoelectric element 7 is not conducted.

With this configuration, when igniting, the
When the bottom cover 16 is rotated counterclockwise as shown by arrow E in the figure, the ratchet gear 21 rotates in the E direction together with the bottom cover 16, and the teeth 21a formed on the inner periphery of the ratchet gear 21 rotate. engages with a plurality of pawl portions 20a protruding from the ratchet pawl 20 (see FIG. 4). As a result, the ratchet pawl 20 also rotates in the E direction, and the trigger member 12 fixed to the ratchet pawl 20 also rotates in the same direction.

Further, as the trigger member 12 rotates, one of the protruding portions 12a of the trigger member 12 engages with one end 13b of the leaf spring 13 to which the hammer member 8 is attached.
The leaf spring 13 is bent in a direction separating it from the piezoelectric element 7. When the bottom cover 16 is further rotated, the engagement between the protrusion 12a of the trigger member 12 and one end 13b of the leaf spring 13 is released, and the elastic force of the leaf spring 13 causes the hammer member 8 to move toward the piezoelectric element 7. It is configured so that a striking force is applied to one end 7b and a voltage is generated at both ends of the piezoelectric element 7 (see Fig. 2).
. Therefore, when igniting, it is possible to easily ignite by simply turning the bottom cover lightly.

On the other hand, when the bottom 116 is rotated in the opposite direction to the arrow E in FIG. 2, that is, clockwise in FIG. 13b
, and urges the hammer member 8 in the direction of the piezoelectric element 7, but since the piezoelectric element 7 is fixed to the power generation board 14,
The trigger member 12 cannot be rotated any further. Therefore, due to the force of further rotating the bottom cover 16 in the clockwise direction, the claw portion 2 of the ratchet claw 20 is
Teeth 21 of the ratchet gear 21 that 0a is bent and engaged
It is configured so that the engagement with a is released and the rotation idles, and the rotation of the bottom 1116 is not transmitted to the trigger member 12 (see Fig. 4). Therefore, if the bottom 1116 is accidentally rotated in the opposite direction, Also, a trigger member 12, a hammer member 8,
The piezoelectric element 7 and its attachment do not apply excessive force to the parts, thereby avoiding ignition due to vibrations during transportation of the container, etc., and preventing damage due to misuse.

In addition, the two sensing electrodes 11 are covered with a high insulation strength coating, preferably an insulation coating 22 made of synthetic resin, and are inserted between the power generation board 14 and the container body 1 near the inner side of the container body 1. It is erected approximately vertically up to the vicinity of a predetermined water level line 18. The tip of the sensing electrode 11, that is, the exposed portion 17 of the sensing electrode is formed to be shorter than the insulating coating 22, and the concave portion of the tip formed thereby is filled with a hydrophilic member 19 having a capillary action such as hydrophilic felt. is filled.

Therefore, even if the tip of the sensing electrode 11 contacts the inner wall surface of the container body 1, the exposed portion 17 of the sensing electrode 11 and the container body 1 are insulated by the insulating coating 22, and the exposed portion 17 is insulated from the container body 1. , that is, the distance from the exposed portion 17 to the container body 1 via the hydrophilic member 19 is configured to be sufficiently large.

Therefore, if the content 2 is not filled inside the container body 1, or if a predetermined amount of the content 2 does not exist (i.e., if the content 2 is not filled up to the water level line 18)
, or when the ignition operation is performed when only dry material is filled, the electric circuit shown in Figure 3 generates a voltage (i.e., electrostatic induction, electromagnetic induction, current leakage). , unnecessary electrical noise generated by radiation, etc.) is at a low voltage, so heat generation at the ignition valve 9 is avoided, and the heating element 5 will not be ignited.

On the other hand, inside the container body 1, a content 2 made of a material whose insulating properties are sufficiently inferior to that of air, such as water, a fluid mainly composed of water, or a mixture of these and solids, is placed at a water level line 18. When the sensing electrode 11 is filled up to 100%, the contents 2 are absorbed by capillary action through the hydrophilic member 19 plugged at the tip of the sensing electrode 11.
A portion of the water penetrates into the exposed portion 17. As a result, the exposed portions 17 of the two sensing electrodes 11 are short-circuited via the contents 2, and when the ignition operation is performed, discharge sparks are generated in the gap between the discharge electrodes 9d of the ignition bulb. . As a result, the ignition valve 9 instantly generates heat at a high temperature.
The heating element 5 is ignited and starts generating heat.

Further, it is of course possible to use a conductor wire 15 provided on the power generation board 14 as a conductor wire coated with polyvinyl chloride, polyethylene, polypropylene, polyamide, fluororesin, etc., as in the past, but carbon or aluminum It is possible to construct the structure more cheaply and easily by directly applying a conductive material such as a mixture with an adhesive to the power generating board 14, or by attaching a conductive material such as a metal foil directly to the power generating board 14. It is possible.

Furthermore, JP-A-2-7918 and JP-A-1-288
As disclosed in No. 218, the heating element 5 includes an oxidizing agent made of a metal oxide such as iron oxide, copper oxide, or lead oxide;
If the oxidizing agent is appropriately selected and prepared from a combustible agent consisting of a metal such as titanium or iron, or a semimetal such as silicon, which has a higher oxidation heat than the metal forming the oxidizing agent, it will improve ignition performance, caloric efficiency,
It is possible to improve the heating rate.

Furthermore, the heat insulator 4 may be any heat insulating material that has excellent adsorption properties for odors, gases, etc. that are slightly generated during ignition and heat generation, and suitable examples include zeolite and perlite.

What is shown in FIG. 7 is an embodiment of the ignition device 30 of the present invention, which basically consists of only the parts corresponding to the components of the heating mechanism of the container with a heating function shown in FIG. The same parts are given the same reference numbers. The features of this ignition device are basically the same as the components of the heating mechanism of the container with heating function shown in FIG. 1, but the difference from the components of the heating mechanism shown in FIG. 11. The heating element 5 is not provided, and the device is configured to function as an ignition device for any heating element. Note that, as for this circuit configuration, it goes without saying that the piezoelectric element 7 and the ignition valve 9 may be directly connected.

Moreover, what is shown in FIG. 9 is another embodiment of the ignition device 30 of the present invention, which basically has the same configuration as the heating mechanism of the container with a heating function shown in FIG. as well as the electrical circuit configuration.

In this ignition device 30, the sensing electrode 11' is connected to the insulator 22.
The difference is that the support member 2 is disposed so as to pass through a part of the heat insulating body 4 and exposed to the outside of the ignition device 30, and is sealed with a seal gasket 23'. Therefore, this ignition device can provide a convenient ignition device that can heat the substance as needed by storing a liquid substance to be heated, such as stew, and making it detachable from another container.

The above-mentioned embodiment merely describes a preferred embodiment of the present invention, and since changes and modifications can be easily made by those skilled in the art, unnecessary limitations should not be attached to the present invention. The scope should be limited only by the following claims.

(Effects) (1) The ignition device of the present invention generates a voltage of several thousand volts by striking the piezoelectric element, and generates a voltage of several thousand volts through electrostatic induction and an electric M! Unwanted electrical noise caused by induction, current leakage, etc. is reduced, and the potential and electrical pulses are stabilized.

Therefore, if there is no heated substance between the sensing electrodes, the voltage of several thousand volts generated by the piezoelectric element will be insulated by the sensing electrodes and will not be transmitted to the heat conversion device. Since the voltage is suppressed to a low voltage of several tens to several volts, spark discharge between the electrodes of the heat conversion device is prevented (and ignition and heat generation in the heat conversion device is prevented).

On the other hand, when a substance to be heated is present between the sensing electrodes, electricity generated by the piezoelectric element is supplied to the heat conversion device via the sensing electrodes, spark discharge occurs between the electrodes of the heat conversion device, and heat is generated. When the conversion device ignites and generates heat, electrical energy is converted into thermal energy, which can heat the heating element and ignite it.

(2) In the heating function container of the present invention incorporating such an ignition device, when the heating function container is not filled with contents, several thousand volts generated by impacting the piezoelectric element can be used. The voltage is not transmitted to the heat conversion device because the gap between the sensing electrodes is large and spark discharge is not possible, and moreover, the voltage is not transmitted to the heat conversion device due to the large gap between the sensing electrodes, and moreover, the voltage is not transmitted to the heat conversion device through the malfunction prevention electric circuit. Electrical noise is reduced, the electrical pulse is stabilized, and only a stable, low voltage of several tens to several volts is applied to the electrodes of the thermal conversion device, so spark discharge between the electrodes of the thermal conversion device does not occur. This does not occur, and ignition and heat generation in the heat conversion device are reliably prevented, and ignition of the heat generating element is avoided.

On the other hand, when a container with a heating function is filled with a material to be heated, which is made of water, a fluid mainly composed of water, or a mixture of these and a solid, and has a sufficiently inferior insulating property compared to air, the gap between the sensing electrodes Electricity conducts through the liquid contents present in the heat converter and is supplied to the heat converter, so a spark discharges between the electrodes of the heat converter and the heat converter ignites and generates heat, which generates electrical energy. is converted into thermal energy,
The heating element can be heated and ignited.

Therefore, in the present invention, if the container with a heating function is not filled with contents, does not have a predetermined amount of contents, or is filled only with dry materials, it is possible to prevent the container from igniting inadvertently. Even when the operation is performed, the heating element does not generate heat (it is configured so that heating is performed only when a predetermined amount of an appropriate amount of contents is filled.

Further, unlike conventional methods, there is no need to provide the heating element with an ignition part made of an ignition agent that is easier to ignite than the heating element, such as boron, so it is possible to reduce odor during the ignition operation, and
Another advantage is that the heating element can be filled in powder form.

Furthermore, like conventional technology, it is possible to reliably ignite and generate heat with a simple operation, and it will not ignite due to misuse or vibration during transportation. can be provided.

(3) Furthermore, in the heat conversion device of the present invention, the voltage supplied to the ignition bulb causes spark discharge between the electrodes of the bulb, and the ignition agent, which is an insulator or a high-resistance material applied to the electrodes, ignites. Then, the thin metal wire sealed inside the bulb ignites and generates heat, effectively converting the electric energy into thermal energy, that is, the thin metal wire instantly generates heat at a high temperature, A heat conversion device capable of igniting an object to be ignited can be provided.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal cross-sectional view of an embodiment of the heating function container of the present invention, FIG. 2 is a cross-sectional view taken along line A-A in FIG. 1, and FIG. An electrical circuit diagram of one embodiment of the container, FIG. 4 is a sectional view taken along line B-Bm in FIG. 1, and FIG.
6 is an enlarged sectional view of an embodiment of the ignition valve of the present invention; FIG. 7 is a longitudinal sectional view of an embodiment of the ignition device of the present invention; FIG. 8 is an electric circuit diagram showing another embodiment of the electric circuit of the container with a heating function of the present invention, FIG. 9 is a sectional view of another embodiment of the ignition device of the present invention, and FIGS. FIG. 12 is an electric circuit diagram showing another embodiment of the electric circuit of the heating function container of the present invention. DESCRIPTION OF SYMBOLS 1... Container body, 2... Contents, 3... Heating element container, 4... Heat insulator, 5... Heating element, 7... Piezoelectric element, 8... Hammer member , 9... Ignition valve, 9a
...Supporting member, 9b...Bulb container, 9C...Thin metal wire, 9d...Discharge electrode, 9e...Ignition agent, 11
...Sensing electrode, 12...Trigger member, 13...
Leaf spring, 14... Power generation board, 15... Conductor, 16.
...Bottom cover, 17...Exposed part, 18...Water level line, 1
9... Hydrophilic member, 20... Ratchet pawl, 21...
...Ratchet gear, 22...Insulation coating, 30...
Ignition device. C Electric base right side Fig. 2 Sensing electrode ＼ Fig. 7 Sensing electrode / Fig. 8 Fig. 9

Claims (4)

[Claims] (1) An ignition device for igniting a heating element, the ignition device comprising: a piezoelectric element that generates electricity by pressure such as a striking force; a pressure application device that applies pressure to the piezoelectric element; and a heating element. a sensing device that senses whether a predetermined amount of a substance to be heated is filled inside a container to be housed; and a sensing device that detects whether a predetermined amount of the substance to be heated is filled inside the container. A heat conversion device that substantially converts electrical energy generated by the piezoelectric element into heat energy and generates heat at a high temperature when sensing; and a heat conversion device that interconnects the piezoelectric element, the sensing device, and the heat conversion device, and An ignition device comprising an electric circuit that stabilizes electric pulses supplied to a converter and reduces unnecessary electric pulses. (2) A heating element for heating a heated substance made of water, a fluid mainly composed of water, or a mixture of these and a solid housed in a container, and an ignition mechanism for causing the heating element to generate heat. A container with a heating function, wherein the ignition mechanism includes a piezoelectric element that generates electricity by pressure such as a striking force, a pressure applying device that applies pressure to the piezoelectric element, and a predetermined amount of the above-mentioned gas inside the container. a sensing device that senses whether a heating substance is filled, and when the sensing device senses that a predetermined amount of the heating substance is filled inside the container;
The piezoelectric element substantially converts electrical energy generated by the piezoelectric element into thermal energy and generates heat at a high temperature.The piezoelectric element, the sensing device, and the thermal converting device are interconnected and the A container with a heating function, comprising an electric circuit that stabilizes electric pulses supplied to a converter and reduces unnecessary electric pulses to prevent ignition due to malfunction. (3) A heat conversion device that substantially converts electrical energy into thermal energy and generates heat at a high temperature, the heat conversion device comprising:
It is characterized by a valve consisting of a thin metal wire enclosed in a container together with oxygen, and a pair of spaced apart electrodes whose surfaces are coated with an igniter that is an insulator or a high-resistance material. heat conversion equipment. (4) An ignition device for igniting a heating element, the ignition device comprising a piezoelectric element that generates electricity by pressure such as a striking force, and a piezoelectric element that substantially converts electrical energy into thermal energy and generates heat at high temperature. An ignition device comprising: the heat conversion device according to claim 3; and an electric circuit connecting the piezoelectric element and the heat conversion device.