JP2002267271A - Heater - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent high-voltage discharges at ignition from having adverse effects on the control section by employing a structure for electrically insulating a high-voltage discharger for ignition and the radiating section. SOLUTION: A heat exchanger 27 is fixed tightly to a combustor 21 provided with a high voltage discharger 24 for ignition, a heating medium contained in the heat exchanger 27 is circulated by a circulator 29, and a radiation tube 33 for circulating the heating medium is provided in the radiating section 31, where the radiating section 31 and the high voltage discharger 24 are disposed, while being insulated electrically.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heating apparatus which is highly portable and has a function of collecting heat using combustion heat.

[0002]

2. Description of the Related Art In general, various types of heating devices can be seen. For example, a heating device disclosed in Japanese Patent Application Laid-Open No. 2000-291950 has a heating unit 1 as shown in FIG.
A combustion unit 3 that generates heat by oxidizing a mixed gas of fuel gas and air sent from the control unit 2 to generate heat;
A temperature detection unit 4 for detecting the temperature of the combustion unit 3 and an ignition unit 5 for igniting the fuel gas sent from the control unit 2
have. The high voltage of 10 to 15 KV generated by the ignition section 5 causes arc discharge at the discharge electrode 6, ignites the fuel gas and generates a flame. The flame is heated so as to heat the catalyst section 7 and shift to catalytic combustion. The temperature detection section 4 detects the temperature of the combustion section 3 and controls the temperature to a predetermined temperature. Any part of the human body can be heated using heat.

[0003]

However, in the conventional apparatus as described above, when igniting the fuel gas, the ignition section 5 discharges a high voltage of 10 to 15 KV, and generally, the combustion section 5 The part 3 is formed of a metal such as copper or aluminum. However, such a material having good heat conductivity is also a good conductor electrically, and further, a heating member used to heat the human body by attaching the combustion part 3 is also made of a material having good heat conductivity, such as metal. Since the foil or the metal mesh is used, the combustion unit 3 and the heating member are electrically connected, and a part of the high voltage at the time of ignition flows to the heating member and the like, and the control unit may malfunction. Had the problem that

The present invention has been made to solve the above-mentioned problems, and has a structure in which a high-pressure discharge device for ignition and a heat radiating portion are electrically insulated.
An object of the present invention is to obtain a highly reliable heating device that does not adversely affect the control unit.

[0005]

In order to achieve the above object, the present invention comprises a combustion device provided with a high-pressure discharge device for ignition, and a radiating tube for circulating a heat medium heated by the combustion device. It has a heat radiating portion, and the heat radiating portion and the high-voltage discharge device are electrically insulated and arranged.

Thus, the high-pressure discharge device for ignition and the heat radiating section are electrically insulated from each other, so that a highly reliable heating apparatus which does not affect the control section can be provided.

[0007]

DETAILED DESCRIPTION OF THE INVENTION The invention according to claim 1 of the present invention is directed to a combustion device provided with a high-pressure discharge device for ignition, a heat exchanger closely attached to the combustion device, and the heat exchange device. A heat medium housed in a vessel, a circulating device for circulating the heat medium, and a heat radiating portion provided with a heat radiating tube for circulating the heat medium heated by the combustion device, wherein the heat radiating portion and the high pressure The discharge device is electrically insulated and arranged. Even if a high voltage of 10 to 15 KV is generated at the time of ignition, the heat radiating portion is insulated. And a highly reliable heating device that does not have an influence on the heating device.

According to a second aspect of the present invention, in the first aspect of the present invention, since the heat exchanger is made of an electrically insulating material, the heat radiating portion is similarly insulated. Is not applied, and the heating device has excellent reliability without affecting the control unit.

According to a third aspect of the present invention, the heat radiating portion is similarly insulated by disposing an electrically insulating material between the heat exchanger and the combustion device in the second aspect of the present invention. A voltage can be prevented from being applied to the heat radiating portion, and a highly reliable heating device without affecting the control portion can be provided.

According to a fourth aspect of the present invention, in the third aspect of the present invention, the electrically insulating material is a thermoelectric generator for generating electric power by utilizing a temperature difference between the combustion device and the heat exchanger. Similarly, since the heat radiating section is insulated, no voltage is applied to the heat radiating section, and a highly reliable heating device that does not affect the control section can be obtained. The obtained voltage can be used as a power source for the control unit and the like, and a heating device excellent in economy can be obtained.

According to a fifth aspect of the present invention, in the first aspect of the present invention, since the heat medium passage is made of an electrically insulating material, the heat radiating portion is similarly insulated. Is not applied, and the heating device has excellent reliability without affecting the control unit.

According to a sixth aspect of the present invention, in the first aspect of the present invention, since the heat radiating portion is made of an electrically insulating material, the heat radiating portion is similarly insulated. A heating device which is not applied and has no influence on the control unit and has excellent reliability can be provided.

[0013]

Embodiments of the present invention will be described below with reference to the drawings.

(Embodiment 1) As shown in FIGS. 1 and 2, reference numeral 20 denotes a detachable fuel tank for storing a fuel gas composed of liquefied petroleum gas such as butane gas, and reference numeral 21 denotes a fuel tank via a supply pipe 22 from the fuel tank 20. A combustion unit having a combustion unit 23 for oxidizing air and generating heat by oxidizing air with the supplied fuel gas. A discharge unit 24 a of a high-pressure discharge device 24 for igniting the fuel gas supplied from the fuel tank 20. have. Reference numeral 25 denotes a temperature control unit that detects heat generated in the combustion unit 23 by a temperature detection unit 26 such as a thermistor and controls the combustion device 21 to an arbitrary temperature.

A heat exchanger 27 for heating the heat medium with the heat generated by the combustion device 21 is mounted in close contact with the combustion device 21. The heat exchanger 27 communicates with a circulation device 29 constituted by a pump or the like in a heat medium passage 28 to circulate the heat medium.

Reference numeral 30 denotes a storage container, and the fuel tank 20,
It contains a combustion device 21, a temperature control unit 25, a circulation device 29, a heat exchanger 27, and the like.

Numeral 31 denotes a heat radiating portion for heating, which is a connecting portion 32 connected from one side surface of the storage container 30 to communicate with the heat medium passage 28.
Is connected to the heat radiating tube 33 made of rubber or the like provided in the heat radiating portion 31. The heat radiating portion 31 has cushioning and flexibility such as a blanket or a mat, and is heated over a wide range. Like that.

Next, the operation of the above configuration will be described.
First, when the apparatus is started and set to an arbitrary temperature, the fuel gas stored in the fuel tank 20 is supplied to the combustion unit 23 through the supply pipe 22 and the discharge gas is discharged from the discharge unit 24a to 10K.
The high pressure of V or more is discharged to the combustion unit 23 to ignite the fuel gas. At this time, since the discharge part 24a and the heat radiating part 31 are electrically insulated and arranged, a part of the high voltage does not leak to the part other than the combustion part 23, and the temperature control part 25 composed of an electronic circuit malfunctions. Nothing.

Then, the fuel gas and the air are oxidized to generate heat in the combustion device 21. The temperature control unit 25 detects the temperature of the combustion unit 23 and controls the temperature to a predetermined temperature. The heat released from the combustion device 21 is supplied to the heat exchange unit 27.
To heat the internal heating medium. The heated heat medium is
The heat is radiated by the heat radiating tube 33 provided in the heat radiating portion 31 from the heat medium passage 28 through the connecting portion 32 by the circulation device 29 via the connecting portion 32, and the heat radiating portion 31 is heated. The heat medium whose temperature has decreased is sent to the heat exchange unit 27 by the circulation device 29 and is heated.

(Embodiment 2) As shown in FIG. 2, the heat exchanger 27 is formed of ceramic or the like having excellent heat conductivity and high electrical insulation. Other configurations are the same as those of the first embodiment.
Is the same as

According to the above configuration, the heat exchanger 27 is attached in close contact with the combustion section 23, but since it is a material having excellent electrical insulation, a high voltage does not flow from the heat exchanger 27. In addition, there is no possibility that a part of the high voltage leaks and the temperature control unit 25 malfunctions.

(Embodiment 3) As shown in FIG. 2, an electrically insulating material 34 such as silicon grease between the heat exchanger 27 and the combustion section 23, which has excellent thermal conductivity and electrical insulation. Is arranged. Other configurations are the same as those in the first embodiment.

According to the above configuration, the heat exchanger 27 is attached in close contact with the combustion section 23. However, since the heat exchanger 27 is attached to the combustion section 23 via the electrically insulating material 34, heat exchange is performed. High voltage does not flow from the container 27,
There is no possibility that a part of the high voltage leaks and causes the temperature control unit 25 to malfunction.

(Embodiment 4) As shown in FIGS. 3 and 4, an electrically insulating material is constituted by a thermoelectric generator 35 which generates electric power by utilizing a temperature difference between the combustion section 23 and the heat exchanger 27. is there. Other configurations are the same as those in the first embodiment.

According to the above configuration, the thermoelectric generator 35 is, for example, generally called a Peltier element, and uses a ceramic plate 35a having insulating surfaces on both sides and an element 35b provided therebetween. Since the thermoelectric generator 35 is also excellent in electrical insulation, a high voltage does not flow from the heat exchanger 27, and a part of the high voltage does not leak and the temperature controller 25 does not malfunction.

Further, an electromotive force is generated in the thermoelectric generator 35 due to the temperature difference between the high temperature side combustion section 23 and the low temperature side heat exchange section 27. The voltage obtained by this thermoelectric generation is used as the temperature control unit 2
5 can be used as a power source, and a heating device excellent in economy can be obtained.

(Embodiment 5) As shown in FIG. 1, the heat medium passage 28 is made of a material having excellent electrical insulation such as rubber. Other configurations are the same as those in the first embodiment.

According to the above configuration, since the heat medium passage 28 is made of a material having excellent electric insulation, a high voltage does not flow from the heat exchanger 27, and a part of the high voltage leaks to control the temperature. The unit 25 does not malfunction.

(Embodiment 6) As shown in FIG.
1 is made of a cushion material or the like having excellent electrical insulation properties. Other configurations are the same as those in the first embodiment.

According to the above configuration, since the heat radiating section 31 is made of a material having excellent electrical insulation properties, a high voltage does not flow from the heat exchanger 27, and a part of the high voltage leaks and the temperature control section 31 25 does not malfunction.

[0031]

As described above, according to the first to sixth aspects of the present invention, an adverse effect on the control unit due to the high-voltage discharge at the time of ignition can be reliably prevented, and the reliability is excellent. A heating device can be realized.

[Brief description of the drawings]

FIG. 1 is a top view of a heating device according to a first embodiment of the present invention.

FIG. 2 is a sectional view of a main part of the heating device.

FIG. 3 is a sectional view of a main part of a heating apparatus according to a fourth embodiment of the present invention.

FIG. 4 is a perspective view of a thermoelectric generator of the heating device.

FIG. 5 is a block diagram of a conventional heating device.

[Explanation of symbols]

 Reference Signs List 21 Combustion device 24 High-pressure discharge device 27 Heat exchanger 29 Circulation device 31 Radiator

Continuation of the front page (51) Int.Cl. ⁷ Identification symbol FI Theme coat II (Reference) F24D 19/00 F24D 19/00 C F28D 7/00 F28D 7/00 Z (72) Inventor Kenjiro Tomita Kadoma-shi, Osaka Pref. 1006, Kadoma Matsushita Electric Industrial Co., Ltd. F term (reference) 3L036 AA01 AA41 AA46 AC18 AE03 3L070 BB03 BB18 BC02 BC11 BC13 BC30 DD02 3L071 BB01 BC01 BD01 BE01 3L073 BB02 BB03 BB05 3L103 AA00 AA33 BB42 CC01 DD61 DD81

Claims (6)

[Claims] 1. A combustion device provided with a high-pressure discharge device for ignition, a heat exchanger closely attached to the combustion device, a heat medium housed in the heat exchanger, and a heat medium. A heating device comprising: a circulating device for circulating; and a radiating portion provided with a radiating tube for circulating the heat medium heated by the combustion device, wherein the radiating portion and the high-pressure discharge device are electrically insulated. 2. The heating device according to claim 1, wherein the heat exchanger is made of an electrically insulating material. 3. The heating device according to claim 2, wherein an electrically insulating material is disposed between the heat exchanger and the combustion device. 4. The heating device according to claim 3, wherein the electrically insulating material is a thermoelectric generator for generating electric power by utilizing a temperature difference between the combustion device and the heat exchanger. 5. The heating device according to claim 1, wherein the heat medium passage is formed of an electrically insulating material. 6. The heating device according to claim 1, wherein the heat radiating portion is made of an electrically insulating material.