JP2005043028A - Hot air type heater with ion generator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a hot air type heater of simple constitution capable of extending a diffusing distance of air containing an ion up to a long distance. <P>SOLUTION: The hot air is diffused from a hot air diffusing port 2 in a front face of an equipment main body 1, through a hot air passage 22 between a combustion part 14 of the equipment main body 1 and a combustion frame 20 in an outside thereof from an air intake port 13 in an backface side of the equipment main body 1, by a convection fan 11. One portion of blow air from the convection fan 11 is fed to a burner 17 to serve as combustion air. The combustion air is leaked a space between constitutive members such as the combustion frame inside the equipment main body to generate a flow, since the combustion air is under a positive pressure condition. An ion diffusing port 25 is formed in a downstream of the leaked air flow and in the upper side vicinity of the hot air diffusing port 2 using the leaked air flow, an ion generator 26 is arranged in this portion, and the ion is diffused to a distant side in a chamber, using negative pressure of the hot air. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

The present invention relates to a hot air heater using electricity, gas, or oil as a heat source.

    Air cleaners and electric fan heaters equipped with ion generators that generate positive and negative ions that remove bacteria floating in the air have already been put into practical use by the present applicant.

  Further, Patent Document 1 discloses a combustion chamber provided in a main body casing, a blower for supplying indoor air to the combustion chamber and blowing the indoor air, and a hot air outlet for blowing indoor air that has become hot air. And an ionization section that is provided in the combustion chamber and ionizes indoor air from the blower by high-voltage discharge, a combustion cylinder in which a burner is disposed, and a high voltage applied to the outer surface of the combustion cylinder for collection. A combustion heating apparatus provided with a dust collecting part for dusting is disclosed.

  In Patent Document 1, when the burner is burned, the blower is driven and the ionization unit and the dust collection unit are driven, the dirt particles in the indoor air flowing into the combustion chamber are ionized in the ionization unit, and then ionized. The dirt particles are sucked and attached to the dust collecting portion, and the dirt particles adhering to the suction are thermally decomposed and removed by the combustion heat from the burner, and clean air is blown out from the hot air outlet.

  Further, in Patent Document 2, a part of air taken in from a room is used as purifying air, and part of the purifying air is converted into ozone through an ozone generator, and then remains. An oil hot air heater configured to be mixed with purification air and further passed through the vicinity of a combustion chamber and then led to a hot air outlet is disclosed. In this configuration, a part of the air taken in from the room is purified by ozone, and the sterilized and purified purification air is decomposed by the high temperature of the combustion chamber when passing through the vicinity of the combustion chamber. It becomes harmless and clean air is blown out from the hot air outlet.

In Patent Document 3, a bypass passage is formed in which a part of the wind of a hot air fan that discharges warm air is divided by a partition plate, and an ozone generator is provided in the bypass passage to sterilize germs and mold in the air. At the same time, a hot air heater that changes carbon monoxide during combustion to carbon dioxide is disclosed.
Japanese Patent Laid-Open No. 11-294864 (see claim 1, paragraph 0010) Japanese Patent Laid-Open No. 2-203155 (see claims) Japanese Utility Model Laid-Open Publication No. 63-155948 (see Claims, <Action> section on pages 2 to 3 of the specification)

  However, in any of the above Patent Documents 1 to 3, it is described that the air taken into the device body is ionized or ozone is generated to sterilize bacteria in the air, and clean air is discharged from the hot air outlet. However, the indoor air where the hot air heater is installed cannot be sterilized actively.

  In Patent Documents 1 and 2, the ionization unit is disposed in the warm air passage, and in Patent Document 3, a bypass path is formed that is divided by a partition plate, and an ozone generator is disposed in the bypass path. Therefore, a new passage is formed as an ionization or ozone generation passage, or an existing hot air passage is used. Therefore, there is a problem that the configuration is complicated and the degree of freedom of arrangement of the ion generator is hindered.

  An object of the present invention is to provide a warm air heater that solves the above-described problems, has a simple configuration, and can extend the discharge distance of air containing ions.

  In order to achieve the above object, the present invention provides a warm air heater having a hot air passage extending from an air inlet to a hot air outlet in a device main body, and a gap between the device main body and a component inside the hot air heater. An ion generator for generating ions is provided downstream of the air flow leaking from the apparatus, and an ion outlet for discharging air containing ions generated by the ion generator out of the apparatus main body is formed in the apparatus main body. It is characterized by that.

  In the said structure, since the air containing ion is discharge | released out of an apparatus main body, indoor air can be effectively disinfected outside an apparatus main body. In addition, since the air containing ions uses an air flow that leaks from the gap between the device main body and the internal components, there is no need to provide a special air passage, and the ion outlet and the ion generator. The degree of freedom of arrangement becomes higher.

  The ion outlet is opened in the vicinity of the hot air outlet, and the air containing the ions is merged with the hot air blown out from the hot air outlet outside the device body, or the hot air blown out from the hot air outlet is provided. Using negative pressure, air containing the ions can be released from the device body into the room.

  In the above configuration, the air containing ions is combined with the warm air blown from the hot air outlet, or the ions generated at the ion outlet are sucked by the hot air, so the hot air blowing force is used. Ions can be blown far into the room.

In this case, the ion outlet may be disposed at any of the upper, lower, left and right positions as long as it is in the vicinity of the hot air outlet, but the ion outlet is preferably disposed in the vicinity of the upper portion of the hot air outlet. According to this configuration, the air blown out from the ion outlet is lower in temperature than the hot air blown out from the hot air outlet, and the hot air that tends to rise and the ion wind that tends to fall due to the relative temperature difference are mixed. It becomes easier, and it is possible to efficiently fly far away by putting ionic wind on warm air.
Further, the positions of the hot air outlet and the ion outlet are not particularly limited. However, if these are arranged on the front surface of the apparatus main body, the indoor heating effect is enhanced and the indoor sterilizing effect is enhanced.

  In addition, the ion generator is not particularly limited as long as it is an air flow passage that leaks from the gap between the device main body and the components inside the device main body, but in the vicinity of the ion outlet in the device main body. It is preferable to arrange in the above. Thereby, the air containing the ion which generate | occur | produced with the ion generator can discharge | release more outside the apparatus main body.

  Also, there is provided air blowing means for taking indoor air from the air intake into the hot air passage and sending air to the hot air outlet, and a part of the air sent to other than the hot air passage by the air blowing means. Can be used to form an air flow to the ion generator. As a result, the air flow leaking from the gap between the device main body and the constituent members inside thereof can surely reach the ion outlet, and more air containing ions can be discharged into the room.

  Moreover, as a structural member in the said apparatus main body, the various members required for the various heat generating parts which face a warm air path, or a heater can be illustrated. An application example of the present invention in a warm air heater provided with a combustion section having a burner for burning fuel will be described as follows.

  That is, a combustion part having a burner for burning fuel in the apparatus main body, a combustion frame that covers the outside of the combustion part, and the combustion frame and the combustion part are formed between the air intake of the apparatus main body and the device. A hot air passage leading to the hot air outlet of the main body, and the indoor air is taken into the hot air passage from the outside of the device main body and the air is forcibly sent out from the hot air outlet with the heat generated in the combustion section. An air flow that leaks from the gap between the device main body and the combustion frame inside thereof, using a part of the air that is sent out to other than the warm air passage, An ion generator for generating ions is provided on the downstream side of the air flow, and an ion outlet for discharging air containing ions generated by the ion generator to the outside of the apparatus main body is provided in the hot air outlet of the apparatus main body. In the vicinity It is a warm-air heating machine, characterized in that it made the.

  In such a warm air heater, a part of the air sent out by the air blowing means forms an air flow passing through the burner portion of the combustion portion, and the ion generator and the downstream of the burner portion of the air flow A configuration in which an ion outlet is arranged can be employed.

  Normally, air from the air intake is supplied to the hot air passage in the combustion frame, part of which is used as primary combustion air to the burner part of the combustion part, and further air for cooling the electrical parts in the burner part. Also used as Therefore, if the air flow supplied from the air intake port to the burner portion of the combustion unit is used as the air flow passage to the ion blow-out port, the air flow to the ion blow-out port can be provided without providing a special passage. Can be generated.

  As described above, according to the present invention, since the ions generated from the ion outlet opening in the vicinity thereof are sucked using the negative pressure of the hot air discharged from the hot air outlet, the hot air is blown out. Ions can be blown far away using force, and indoor air can be effectively sterilized. In addition, at that time, primary air or cooling air supplied to the burner part of the combustion part is used as an air flow passage for sending air to the ion generator, and an ion outlet is provided downstream of these air blowing directions. Since the air can be blown using the air leaking from the gap between the combustion frame and the device main body, the degree of freedom of the mounting position of the ion generator is increased.

  Hereinafter, an embodiment of an oil fan heater equipped with a liquid fuel combustion device as a hot air heater according to the present invention will be described with reference to the drawings. FIG. 1 is a front perspective view of an oil fan heater equipped with a liquid fuel combustion apparatus, FIG. 2 is a side sectional view of the same, and FIG. 3 is a front sectional view showing an internal configuration of an apparatus main body.

  In FIG. 1, 1 is a device main body, 2 is a lower part of a front plate 7 of the device main body, a hot air outlet provided with a louver for guiding hot air, and 3 is an operation disposed on the front side of the upper surface of the main body. The display unit 4 is a louver that blows out warm air in a downward direction, and 5 is a detachable oil supply tank that also has a main body lid. The exterior of the device main body 1 is configured such that a front plate 7 that covers the front surface, an upper surface plate 8 that covers the upper surface, and a back plate 9 that covers the side surfaces and the rear surface are fixed on the mounting table 10. The fuel tank 5 is stored in a tank chamber partitioned by a tank guide in the device main body 1.

  Further, an ion outlet 25 is opened in the vicinity of the front plate 7 above the hot air outlet 2, and an ion generator 26 (see FIG. 2) for generating ions is provided in the vicinity of the ion outlet 25. The ions generated from the ion generator 26 are discharged into the room from the ion outlet 25 using the negative pressure of the hot air blown from the hot air outlet 2. In the ion outlet 25, vertical and horizontal lattices are formed in horizontally long square holes.

  2 and 3, reference numeral 11 denotes a convection fan as a blowing means attached to the air intake on the back side of the apparatus main body, 13 denotes an air intake provided on the back of the apparatus main body 1, and 14 denotes a combustion portion. . The convection fan 11 is disposed so as to face the air intake port 13 located at the upper back of the device main body 1. A combustion unit 14 is disposed at a substantially central position of the device main body 1 at a distance from the convection fan 11.

  The combustion unit 14 includes an upper combustion cylinder 16 through a partition plate 15, and a burner box 18 and a vaporizer 19 that house a burner 17 (see FIG. 3) on the lower side. The combustion cylinder 16 is formed in a substantially box shape, and is disposed so that the upper part thereof is opened and the lower end part surrounds the burner 17 on the lower side. The burner box 18 is fixed to the partition plate 15 with claws and screws, and a burner 17 is disposed therein.

  Liquid fuel is fed from the fuel tank 5 to the vaporizer 19 through the oil feed pump 12 and piping, gasified by the vaporizer heater, ejected from the nozzle, and supplied to the burner 17. The burner 17 is ignited by an ignition device (not shown) and burns in the combustion cylinder 16 above the burner.

  A substantially box-shaped combustion frame 20 with a canopy 20 a is provided in the apparatus main body 1 outside the combustion cylinder 16 so as to surround the combustion cylinder 16. In the combustion frame 20, an opening 20 b facing the convection fan 11 is formed at the back side air intake 13 between the combustion cylinder 16, and the hot air blowing formed on the front plate 7 of the device main body 1 from the opening 20 b. A hot air passage 22 reaching the outlet 2 is formed. The hot air passage 22 passes from the air intake port 13 at the upper back of the device main body 1 through the upper side of the combustion cylinder 16 toward the hot air outlet 2 located slightly below the intermediate height position on the front surface of the device main body 1. In order to form a downwardly inclined passage on the front side of the apparatus body, the front side of the combustion cylinder 16 and the combustion frame 20 is a downwardly inclined surface.

  In a space between the front inclined plate 20c of the combustion frame 20 and the front plate 7 of the apparatus body 1, a board mounting bracket 27 is fixed, and a printed board 29 is mounted on the board mounting bracket 27 almost vertically. Yes. A lower passage 30 that communicates with the ion outlet 25 is formed between the substrate mounting bracket 27 and the front inclined plate 20 c of the combustion frame 20.

  The partition plate 15 that partitions the combustion unit 14 is formed with a slit 21 on the outer peripheral side thereof, so that a part of the air sent from the convection fan 11 can be introduced to the lower burner 17 and the carburetor 19 side through the slit 21. It has become. The introduced air is used for supplying primary air to the burner 17 and cooling the periphery of the vaporizer 19. As shown in FIG. 3, the cooled air passes through a slight gap 24 between the device body 1 and the tank guide 23 and the left and right side walls of the combustion frame 20 from the slits 22 a on the left and right sides of the partition plate 15. From the gap 24a between the canopy 20a of the combustion frame 20 and the upper surface plate 8, the lower gap 30 of the mounting bracket 27 passes through the space between the front inclined plate 20c of the combustion frame 20 and the front plate 7 of the device body 1. To the ion outlet 25.

  That is, the indoor air passage taken in from the convection fan 11 recovers the heat of the combustion cylinder 16 to increase the air temperature and is discharged from the hot air outlet 2 into the room, and from the convection fan 11. Part of the indoor air passes through the burner box 18 on the lower side from the slit 21 of the partition plate 15, and from the rising gap 24 between the tank guide 23 and the left and right side walls of the combustion frame 20, the canopy 20 a and the top plate of the combustion frame 20. 8 and a blower passage 34 extending from the lower gap 30 on the front side of the combustion frame 20 to the ion outlet 25. The ventilation passage 34 is not a new passage dedicated to sending air to the ion generator 26, but air leaking from a gap space formed when the combustion unit 14, the combustion frame 20, etc. are arranged in the device main body 1. As a result, the ion generator 26 can be installed with a simple configuration, and there is no need for special conditions for the arrangement, and the degree of freedom of the mounting position is increased.

  FIG. 4 is a front perspective view of the apparatus main body showing the attachment state of the ion generator. As shown in FIGS. 2 and 4, the ion generator 26 is interposed between the printed board 29 and the front plate 7, and is held by the board mounting bracket 27 by the holding body 31.

  The holding body 31 is made of synthetic resin, and includes a mounting portion 35 of the ion generator 26, an oil amount lamp that displays the remaining amount of the fuel tank, and a window hole 36 that displays a drive display lamp of the ion generator 26. , 37 are formed integrally with a holding portion 38.

The attachment portion 35 of the ion generator 26 is formed in a square cylinder shape having the inside as a ventilation passage, and a square hole 39 is formed on the upper surface thereof so that the discharge surface of the ion generation element 51 of the ion generator 26 faces. A locking hole 41 for releasably locking the holding band 40 that holds the ion generator 26 is formed in the vicinity of the hole. The holding band 40 has a normal band shape, and elastic locking claws 42 to be inserted into the locking holes 41 of the holding body 31 protrude from the right and left at both ends thereof.

  The procedure for attaching the ion generator 26 to the holding body 31 and attaching it to the apparatus main body is as follows. First, the ion generator 26 is inserted into the attachment portion 35 of the holding body 31 in a predetermined direction, the holding band 40 is hung on the ion generator 26 from the upper side of the ion generator 26, and elastic locking of both ends of the holding band 40 is performed. The ion generator 26 is held by inserting and locking the claw 42 into the locking hole 41 of the holding body 31. Next, in a state where the lamps are mounted on the holding body 31, the mounting is completed when screws are fastened to the board mounting bracket 27 and wiring from the printed circuit board 29 mounted on the board mounting bracket 27 is mounted.

  5 is an external perspective view of the ion generating device 26, FIG. 6 is a perspective view of the ion generating element, and FIG. 7 is a sectional view showing an electrode structure of the ion generating element. As shown in the figure, the ion generator 26 is configured by assembling a case 50 in which a booster coil and a circuit board (not shown) are housed, and a lid plate 57 to which the ion generating element 51 is fixed.

  The ion generating element 51 includes a surface electrode 53 provided on the surface of a flat dielectric 52 such as ceramic, a surface electrode contact 54 provided on the surface of the dielectric 52 for supplying power to the surface electrode 53, An internal electrode 55 embedded in the dielectric 52 and provided in parallel with the surface electrode 53 and an internal electrode contact 56 provided on the surface of the dielectric 52 for supplying electric power to the internal electrode 55 are provided. Yes. The dielectric 52 includes an upper dielectric 52a, a lower dielectric 52b, and a surface protective dielectric 52c. The cover plate 57 is a flat plate made of a resin material, and the ion generating element 51 is fixed in the recess, and the cover plate 57 is fixed to the case 50.

  Then, as shown in FIG. 2, the ion generator 26 is held downward so that the ion generating element 51 faces the air passage side in the holding state on the holding body 31, and is in a state in which dust and dust are not easily attached. It has become.

Next, the operation of the ion generator 26 will be described. When an AC voltage is applied between the surface electrode 53 and the internal electrode 55 of the ion generator 26, oxygen or moisture in the air is ionized by receiving energy by ionization, and is H ⁺ (H ₂ O) _m (m Is an arbitrary natural number) and O ₂ ⁻ (H ₂ O) _n (n is an arbitrary natural number) which is a negative ion, and these are released into the space by a fan or the like.

These H ⁺ (H ₂ O) _m and O ₂ ⁻ (H ₂ O) _n adhere to the surface of the floating bacteria and chemically react to generate H ₂ O ₂ or .OH as an active species. Since H ₂ O ₂ or .OH exhibits extremely strong activity, they can surround and inactivate airborne bacteria in the air. Here, .OH is one kind of active species, and represents radical OH.

Positive and negative ions react chemically on the cell surface of airborne bacteria as shown in formulas (1) to (3) to generate hydrogen peroxide (H ₂ O ₂ ) or hydroxyl radical (.OH) as active species. To do. Here, in Formula (1)-Formula (3), m, m ', n, and n' are arbitrary natural numbers. Thereby, floating bacteria are destroyed by the action of decomposing active species. Therefore, airborne bacteria in the air can be inactivated and removed efficiently.

^{_{H + (H 2 O) m}} + O 2 - (H 2 O) n → · OH + 1 / 2O 2 + (m + n) H 2 O ··· (1)
H ⁺ (H ₂ O) _m + H ⁺ (H ₂ O) _{m ′} + O ₂ ⁻ (H ₂ O) _n + O ₂ ⁻ (H ₂ O) _{n ′} → 2 · OH + O ₂ + (m + m ′ + n + n ') H ₂ O (2)
H ⁺ (H ₂ O) _m + H ⁺ (H ₂ O) _{m ′} + O ₂ ⁻ (H ₂ O) _n + O ₂ ⁻ (H ₂ O) _{n ′} → H ₂ O ₂ + O ₂ + (m + m ′ + n + n ′) H ₂ O (3)

  By the above mechanism, the inactivation effect of floating bacteria and the like can be obtained by the release of the positive and negative ions.

In addition, since the above formulas (1) to (3) can produce the same action even on the surface of harmful substances in the air, hydrogen peroxide (H ₂ O ₂ ) or hydroxyl radical (. OH) can oxidize or decompose harmful substances and convert chemical substances such as formaldehyde and ammonia into harmless substances such as carbon dioxide, water, and nitrogen, thereby making them virtually harmless. is there.

  Next, the operation of the oil fan heater will be described. When the operation is started by operating the button of the operation display unit 3, a room temperature thermistor disposed in the vicinity of the air inlet 13 on the back surface or a floor surface temperature sensor 60 disposed below the hot air outlet 2 of the front plate 7. The heating output is controlled by the output of.

  Then, most of the indoor air sucked from the air intake port 13 by the convection fan 11 enters the combustion frame 20, recovers the heat of the combustion cylinder 16, raises the air temperature, and warm air outlet 2 of the front plate 7. Is released into the room.

  In addition, since the combustion air sent from the convection fan 11 to the burner 17 is in a positive pressure state, the air flow leaks from the space between the component members such as the combustion frame 20 in the device main body 1. Arise. By utilizing this leaked air flow, the ion blowout port 25 is formed in the downstream and in the vicinity of the upper portion of the hot air blowout port 2, so that the substrate mounting bracket 27 to which the ion generator 26 is mounted is provided. Nearby air is discharged from the ion outlet 25 of the front plate 7 to the outside of the main body via the lower passage 30 of the board mounting bracket 27.

  That is, a part of the indoor air from the convection fan 11 is burned from the rising gap 24 between the tank guide 23 and the left and right side walls of the combustion frame 20 through the burner box 18 on the lower side from the slit 21 of the partition plate 15. It passes through the gap 24 a between the canopy 20 a of the frame 20 and the upper surface plate 8, and reaches the ion outlet 25 from the lower gap 30 on the front side of the combustion frame 20.

  When an AC impulse voltage is applied to the ion generator 26 at the ion outlet 25, positive ions and negative ions are generated from the surface electrode 53 side of the ion generating element 51 [peak-to-peak 3.5 kV, waveform odor 165 Hz applied. Under conditions, 10 cm in front of the ion outlet, an air ion counter (Model No. 83-1001B) manufactured by Dan Chemical Co., Ltd. is used to detect small ions having a mobility of 1 cm 2 / sec or more. 10,000 / cc or more], positive ions and negative ions can be sent out of the main body. And by the action of these positive ions and negative ions, it is possible to inactivate mold and fungi in the air and suppress their growth.

  In addition, positive ions and negative ions have a function to inactivate viruses such as Coxsackie virus and polio virus, and can prevent contamination due to contamination of these viruses. In addition, it has been confirmed that positive ions and negative ions have a function of decomposing molecules that cause odors, and can be used to deodorize spaces.

  Moreover, since the warm air from the warm air blowing port 2 below the ion blowing port 25 has a large air volume and wind speed, the air containing the ions sent from the ion blowing port 25 is sucked by the negative pressure due to the warm air. Then, it joins with warm air and is carried far away. Therefore, distribution of ions in the room is improved, and bacteria floating in the room can be sterilized.

  In particular, since the ion outlet 25 is disposed in the vicinity of the upper side of the hot air outlet 2, the warm air during the heating operation tends to rise, and the cold air containing ions is supplied from above the hot air outlet 2. It will blow out, and it can fly far away while the air containing ions and warm air merge while suppressing the rise of warm air.

  In addition, this invention is not limited to the said embodiment, Of course, correction and a change can be added within the scope of the present invention. For example, in the above embodiment, the oil fan heater equipped with the liquid fuel combustion apparatus has been described. However, the present invention is not limited to this, and the present invention can of course be applied to a gas fan heater or an electric fan heater.

The front side perspective view of the oil fan heater carrying the liquid fuel combustion apparatus which is one Embodiment of this invention Side sectional view of FIG. Front sectional view showing the internal structure of the equipment body Front side perspective view of the device body showing the mounting state of the ion generator External perspective view of ion generator Perspective view of ion generating element Sectional view showing the electrode structure of the ion generating element

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Apparatus main body 2 Hot air blowing outlet 3 Operation display part 4 Louver 5 Oil supply tank 11 Convection fan 12 Oil pump 13 Air intake 14 Combustion part 15 Partition plate 16 Combustion cylinder 17 Burner 18 Burner box 19 Vaporizer 20 Combustion frame 21 Slit 22 Warm air passage 23 Tank guide 24 Crevice 25 Ion outlet 26 Ion generator 27 Board mounting bracket 29 Printed circuit board 31 Holding body 34 Blower passage 35 Mounting part 39 Square hole 40 Holding band 51 Ion generating element

Claims (9)

In a warm air heater having a hot air passage extending from the air intake to the warm air outlet in the device body, ions are applied to the downstream side of the air flow leaking from the gap between the device body and the internal components. A hot-air heater characterized in that an ion generating device is provided, and an ion outlet for discharging air containing ions generated by the ion generating device to the outside of the device main body is formed in the device main body. The hot air according to claim 1, wherein the ion blowing port is opened in the vicinity of the hot air blowing port, and the air containing the ions is merged with the warm air blown from the hot air blowing port outside the apparatus main body. heater. The ion outlet is opened in the vicinity of the hot air outlet, and the air containing the ions is discharged from the apparatus main body into the room using the negative pressure of the hot air blown from the hot air outlet. The hot air heater according to claim 1. The hot air heater according to any one of claims 1 to 3, wherein the hot air outlet and the ion outlet are disposed on a front surface of the apparatus main body. The hot air heater according to any one of claims 1 to 4, wherein the ion outlet is disposed in the vicinity of the upper side of the hot air outlet. The hot-air heater according to any one of claims 1 to 5, wherein the ion generator is disposed in the vicinity of the ion outlet in an apparatus main body. Blowing means for taking indoor air from the air intake into the hot air passage and sending air to the hot air outlet is provided, and a part of the air sent to other than the hot air passage is used by the air blowing means. The hot air heater according to claim 1, wherein an air flow reaching the ion generator is formed. A combustion part having a burner for burning fuel in the equipment body, a combustion frame covering the outside of the combustion part, and formed between the combustion frame and the combustion part, from the air intake of the equipment body to the equipment body A hot air passage leading to the hot air outlet, and a blowing means for forcing indoor air into the hot air passage from the outside of the device main body and forcibly sending the air from the hot air outlet with the heat generated in the combustion section And
By using a part of the air sent out to the part other than the warm air passage by the blowing means, an air flow leaking from a gap between the device main body and the combustion frame inside thereof is formed, and on the downstream side of the air flow An ion generator for generating ions is provided, and an ion outlet for discharging air containing ions generated by the ion generator to the outside of the device body is formed in the vicinity of the hot air outlet of the device body. Hot air heater characterized by A part of the air sent out by the blowing means forms an air flow passing through the burner part of the combustion part, and the ion generator and the ion outlet are disposed downstream of the burner part of the air flow. The hot air heater according to claim 8, wherein

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