JP2014028078A - Deodorization machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a deodorization machine in which whole of a large catalyst filter can be efficiently heated by a small size heater without mounting a rolling mechanism, and that has inexpensive price and few failures.SOLUTION: A deodorization machine includes: a catalyst filter 33; and a heating part that heats the same, and the heating part includes: a PTC heater 352 that performs heat evolution by electric power from a lead wire 352c; and a part to be contacted which the PTC heater 352 contacts, and includes: a heat radiation plate 351 that performs face counter to the catalyst filter 33 and performs heat radiation to heat transferred from the PTC heater 352 through the part to be contacted; and a heater holding part 353 that holds the PTC heater 352 in a state contacting the part to be contacted, the heater holding part 353 includes: a contact face 352a of the PTC heater 352; a lead wire drawer face; a cover part 353a that at least covers whole of a heater side face excluding an opposite surface of the same; and a heat transmission part that performs heat transmission to heat from a PTC heater 352 side face through the cover part 353a to the heat radiation plate 351.

Description

  The present invention relates to a deodorizer that deodorizes air using a heat regeneration type catalyst filter.

  2. Description of the Related Art Conventionally, deodorizers that deodorize and purify air in a closed space such as a room through a deodorizing filter have been used. In particular, in recent years, a heat regeneration type catalyst filter is used for this deodorization filter, and there is one in which the odor adsorption function can be regenerated by decomposing the adsorbed odor component by heating the catalyst filter with a heater. Moreover, when using a small heater compared with the area of the catalyst filter to be used, the deodorizer provided with the filter rotation mechanism which heats the whole catalyst filter by rotating the catalyst filter which contact | connects a heater is used.

  In this type of device equipped with a deodorizing function, the adsorption rotor that adsorbs odorous components and harmful components in the air and releases the odorous components and harmful components by heating to regenerate the adsorption capacity is rotated, There has been an air deodorization apparatus that sequentially heats each circumferential portion with a heating element as the adsorption rotor rotates. The adsorption rotor of this air deodorizing device is inclined, and an electric heater is arranged on the lower surface side and a catalyst is arranged on the upper surface side, respectively, and the odor component separated from the adsorption rotor by the rising air flow that naturally occurs around the electric heater. And harmful components are transported to the catalyst (see, for example, Patent Document 1).

  In addition, the conventional air cleaning device rotates a honeycomb-shaped deodorizing rotor carrying a photocatalyst and a deodorizing agent, blows air to be deodorized through the deodorizing rotor, and emits light to the deodorizing rotor. There has been an optical regeneration unit that irradiates, and the optical regeneration unit further includes a heating device (see, for example, Patent Document 2).

JP 2001-299882 A JP 2002-306579 A

  However, in the devices shown in Patent Documents 1 and 2, both of the heaters that heat the catalyst filter to decompose and regenerate the odor component are smaller than the catalyst filter. It was necessary to have a rotating mechanism for rotating the. For this reason, the conventional deodorizer using the heat regeneration type catalyst filter increases the number of parts due to the adoption of the rotating mechanism, and the structure becomes complicated, so that the manufacturing cost is increased and the frequency of failure is increased. There was a problem.

  The present invention has been made in view of the above, and is capable of efficiently heating an entire large catalyst filter with a small heater without mounting a rotating mechanism for rotating the catalyst filter. The purpose is to provide a few deodorizers.

  In order to solve the above-described problems and achieve the object, a deodorizer according to the present invention includes a catalyst filter that adsorbs and decomposes odor components, and a heating unit that heats the catalyst filter and promotes decomposition of odor components. The heating unit includes a heater that generates heat by electric power supplied from a lead wire, and a contacted part that contacts the heater, and faces the catalyst filter from the heater. A heat radiating plate that radiates heat transmitted through the contacted portion; and a heater holding portion that holds the heater in a state of being in contact with the contacted portion. Of these, the contact surface that contacts the heat radiating plate, the lead wire lead surface from which the lead wire is drawn, a cover that covers at least the entire heater side surface except the side surface opposite to the lead wire lead surface, and the heater side surface are discharged. Heat Characterized in that it comprises a transfer heat heat transfer section parts to the heat radiating plate via.

  Further, in the deodorizer configured as described above, the catalyst filter has a catalyst layer formed on the surface of a metallic base material, the heat dissipation plate includes a recess portion in which the heater is accommodated, and A part of the cover is brought into contact with the catalyst filter, whereby heat of the heater is transferred from the cover to the catalyst filter.

  In the deodorizer configured as described above, the heater is a PTC heater.

  In the deodorizer configured as described above, the covering portion further covers a side surface opposite to the lead wire drawing surface.

  Further, in the deodorizer configured as described above, the covering portion further covers the lead wire drawing surface.

  According to the deodorizer of the present invention, the heating unit that heats the catalyst filter includes a heat radiating plate, a heater, and a heater holding unit, and the heater holding unit has a contact surface that contacts the heat radiating plate among the heater side surfaces; The cover part which covers a heater side surface except the lead wire extraction surface where a lead wire is pulled out, and the heat-transfer part which transfers the heat | fever emitted from a heater side surface to a heat sink via a cover part are provided. As a result, the heat from the heater can be effectively transmitted to the heat radiating plate, so there is no need to mount a rotating mechanism for rotating the catalyst filter, and the entire catalyst filter can be efficiently heated even with a small heater, which is inexpensive. The failure can be reduced.

  Further, the catalyst filter is configured by applying a catalyst to the surface of a metallic base material, and the heat radiating plate includes a recessed portion in which the heater is accommodated, and a part of the cover portion is brought into contact with the catalyst filter, Heat of the heater is further transferred to the catalyst filter. Thereby, since the heat from the heater can be effectively transmitted to the heat radiating plate, the entire catalyst filter can be more efficiently heated even with a small heater.

  Further, by using a PTC heater as the heater, the ambient temperature can be self-determined and temperature control can be performed, so that a temperature detecting means such as a thermistor is not necessary, and the cost can be reduced.

  In addition, the cover part further covers the side opposite to the lead wire lead-out surface so that the heat from the heater can be effectively transferred to the heat sink or the catalyst filter. Can be heated.

  Moreover, since the cover part further covers the lead wire drawing surface, the heat from the heater can be more effectively transmitted to the heat radiating plate or the catalyst filter, so that the entire catalyst filter can be efficiently heated even with a small heater. it can.

FIG. 1 is a perspective view of a deodorizer showing an embodiment of the present invention as viewed obliquely from the front. FIG. 2 is a cross-sectional view taken along the line XX longitudinally cut from the central portion of the deodorizer shown in FIG. FIG. 3 is an exploded perspective view of a deodorizing unit including a catalyst filter of the deodorizer shown in FIG. FIG. 4 is an exploded perspective view of a heating unit that heats the catalyst filter of the deodorizing unit shown in FIG. 3. FIG. 5 is an exploded perspective view of each part from the pre-filter to the humidification unit in the deodorizer shown in FIG. 6 is an enlarged cross-sectional view of a main part of the deodorizing unit of the deodorizer shown in FIG.

  Hereinafter, an embodiment of a deodorizer according to the present invention will be described with reference to the drawings. In addition, this invention is not limited by this embodiment. In the present embodiment, the deodorizer with a humidifying function is described as an example, but the humidifying function is not always necessary, and any deodorizing function can be used.

  First, FIG. 1 to FIG. 6 show an embodiment of a deodorizer 1 according to the present invention. FIG. 1 is a perspective view of a deodorizer showing an embodiment of the present invention as viewed obliquely from the front. As shown in FIG. 1, the deodorizer 1 has a rectangular parallelepiped casing formed of a synthetic resin panel, and air introduced from an air suction port 11 provided on the front panel 17 of the casing on the upper surface. During the discharge from the air outlet 12 provided, the deodorizing process and the humidifying process of the air are performed. A rotatable louver 13 is disposed above the air outlet 12, and the air blowing direction can be appropriately adjusted by changing the opening / closing angle of the louver 13. Although the louver 13 shown in FIG. 1 and FIG. 2 is in a closed position, air can be blown upward because the air outlet 12 is open even in this state. When an angle is desired in the blowing direction, air can be blown out along the lower surface of the louver 13 by pulling up the louver 13 to a desired angle.

  In addition, an operation panel 19 for operating the deodorizer 1 is provided on the upper surface of the housing of the deodorizer 1 so as to be located on the side of the air outlet 12. Furthermore, the side surface side of the housing of the deodorizer 1 is covered with a side panel 18 that contacts the front panel 17 at the side.

  FIG. 2 is a cross-sectional view taken along the line XX longitudinally cut from the central portion of the deodorizer shown in FIG. As shown in FIG. 2, an air passage 10 that guides air introduced from the air suction port 11 to the air outlet 12 is formed inside the housing of the deodorizer 1. A blower 50 is provided for circulating the air in 10 from the air inlet 11 toward the air outlet 12. The blower 50 includes a fan motor 50a and a sirocco fan 50b. Of course, it is preferable to use the sirocco fan 50b for the blower 50, but the blower 50 is not limited to this, and any fan having a function of circulating air may be used. For example, a radial fan, an axial fan, or other fans may be used.

  A pre-filter 20, a dust collection filter 21, a deodorizing unit 30, a unit guide 39, and a humidifying unit 40 are disposed in the air passage 10 between the air suction port 11 and the blower 50. Furthermore, an ozonizer 60 that generates ozone and sterilizes and deodorizes air is disposed in the air passage 10 between the blower 50 and the air outlet 12.

  The characteristic structure of the deodorizer 1 in this embodiment is the structure of the deodorizing unit 30 shown in FIG. The configuration of the deodorizing unit 30 will be described in detail with reference to FIGS. 3 to 6 to be described later, and the catalyst filter 33 and the heating unit 35 for heating the catalyst filter 33 and the heating unit 35 are insulated by sandwiching them from the leeward side and the leeward side. Plate-shaped heat insulating materials 32 and 36 having air permeability are disposed, and an annular heat insulating material 34 that performs heat insulation by encircling the outer peripheral surface is disposed.

  FIG. 3 is an exploded perspective view of the deodorizing unit including the catalyst filter of the deodorizer shown in FIG. 2, and the deodorizing unit 30 shown in FIG. 2 is configured by a combination of each part as shown in FIG. As shown in FIG. 3, the deodorizing unit 30 includes a catalyst filter 33 that adsorbs and decomposes odor components, a heating unit 35 that heats the catalyst filter 33 and promotes decomposition of the adsorbed odor components, and these catalyst filters. 33 and a pair of breathable plate-like heat insulating materials 32 and 36 disposed on both sides so as to sandwich the heating portion 35 and the outer periphery of the catalyst filter 33, the heating portion 35 and the plate-like heat insulating materials 32 and 36. It is comprised by the cyclic | annular heat insulating material 34 arrange | positioned, and a pair of heat insulation board 31 arrange | positioned covering the plate-shaped heat insulating materials 32 and 36 and the ventilation direction both sides of the cyclic | annular heat insulating material 34. As shown in FIG. The heat shield plate 31 is formed of a metal punching plate whose air permeability is ensured by a large number of through holes.

  The catalyst filter 33 is a honeycomb core board having air permeability that is formed in a plate shape by incorporating a honeycomb (honeycomb) structure in a core material portion, and is made of an aluminum alloy, and has a metal oxide such as manganese oxide on the surface thereof. A catalyst of a precious metal such as platinum or platinum is formed to a predetermined thickness (catalyst layer). In addition, as an adsorbent, it is preferable to add activated carbon, various ceramic powders, etc. further. Furthermore, it is also preferable to add an antibacterial agent or a fungicide. And the catalyst filter 33 should just be a structure (heating regeneration type) which can accelerate | stimulate decomposition | disassembly of the adsorbed odor component by heating fundamentally, and may be a catalyst filter which has another heating regeneration structure.

  As described above, the deodorizing unit 30 has the catalyst filter 33 and the heating unit 35 surrounded by the plate-like heat shielding materials 32 and 36 and the annular heat insulating material 34, and the outside thereof is air permeable by a large number of through holes. Since it is covered with the secured heat shield plate 31, it is possible to prevent the heat generated by the heating unit 35 from affecting other members as much as possible, and to efficiently heat the entire catalyst filter 33. Thus, the heat regeneration time can be shortened.

  FIG. 4 is an exploded perspective view of a heating unit that heats the catalyst filter of the deodorizing unit shown in FIG. 3. As shown in FIG. 4, the heating unit 35 of the deodorizing unit 30 includes a heat radiating plate 351, a PTC heater 352 as a heater, and a heater holding unit 353. The heat radiating plate 351 is formed of a metal punching plate in which air permeability is ensured by a large number of through holes as in the case of the heat shield plate 31. The heat radiating plate 351 uses a steel plate so that the heat from the PTC heater 352 is easily transmitted to the whole when the catalytic filter 33 is heated to promote decomposition of the odor component adsorbed by the catalytic filter 33. However, besides this, you may comprise with metals, such as copper and aluminum with high heat conductivity. A central portion of the heat radiating plate 351 is provided with a recessed portion 351a that accommodates the PTC heater 352. With the recessed portion 351a as a contacted portion, one side surface (contacting surface 352a) of the PTC heater 352 is contacted. Fix it. A heater holding portion 353 is used for fixing the PTC heater 352. As shown in FIG. 4, the heater holding portion 353 is a cover portion 353 a that covers the side surfaces of the PTC heater 352 excluding the lead wire lead-out surface 352 b that pulls out the lead wire 352 c from the PTC heater 352 and the opposite surface 352 d that is the opposite side surface. And a heat transfer part 353b for transferring heat released from the side surface of the PTC heater 352 to the heat radiating plate 351 through the cover part 353a. The PTC heater 352 held by the heater holding portion 353 is screwed and fixed with a screw (not shown) in a state in which the PTC heater 352 is in contact with the recessed portion 351a of the heat radiating plate 351 using a screw hole 353b1 provided in the heat transfer portion 353b. As shown in FIGS. 4 and 6, the lead wire 352 c of the PTC heater 352 is pulled out from a lead wire extraction hole 351 b provided in the upper portion of the recessed portion 351 a of the heat radiating plate 351 and connected to a main body control unit (not shown). ing.

  As described above, the heating unit 35 of the deodorizer 1 according to the present embodiment heats the entire catalyst filter 33 using the small PTC heater 352. Therefore, the PTC heater is provided with the recess 351a at the center of the heat radiating plate 351. The 352 is brought into direct contact, and heat is transmitted from the contact surface 352a of the PTC heater 352 to the heat radiating plate 351 from the center toward the periphery. Further, the cover portion 353a of the heater holding portion 353 that covers the side surface of the PTC heater 352 excluding the lead wire drawing surface 352b of the PTC heater 352 and the opposite surface 352d that is the opposite side surface is other than the contact surface 352a of the PTC heater 352. Since the heat from the side surface is transmitted to the heat radiating plate 351 through the heat transfer portion 353b, the heat of the PTC heater 352 can be transmitted to the heat radiating plate 351 more efficiently. Furthermore, since the catalyst filter 33 that is in direct contact with the cover portion 353a of the heater holding portion 353 can be heated by the heat from the cover portion 353a in addition to the heat from the heat radiating plate 351, the entire catalyst filter can be more efficiently processed. Can be heated.

  A PTC heater (Positive Temperature Coefficient) 352 used in the present embodiment is an element that controls its own temperature by utilizing the characteristic that the electrical resistance value increases as the temperature rises. For this reason, the PTC heater 352 eliminates the need for the thermistor that has previously detected the heater temperature, thereby reducing the cost.

  FIG. 5 is an exploded perspective view of each part from the pre-filter to the humidification unit in the deodorizer shown in FIG. The deodorizing unit 30 configured as described above is disposed between the dust collection filter 21 and the unit guide 39 as shown in FIG. For this reason, the air flowing in from the air inlets 11 provided on the top, bottom, left, and right of the front panel 17 of the deodorizer (see arrow A in FIG. 2) passes through the prefilter 20 and is removed by the dust collecting filter 21. (Refer to arrow B in FIG. 2) After the deodorizing treatment is performed by the catalyst filter of the deodorizing unit 30 to remove odorous components such as ammonia and methyl mercaptan and harmful components such as formaldehyde, the humidifying unit passes through the unit guide 39. 40. In the humidification unit 40, water is vaporized while air passes through the humidified humidifying filter, whereby the air is humidified.

  The humidified air from which the odor components and harmful components have been removed is sent to the upper air passage 10 by the sirocco fan 50b of the blower 50 (see arrow C), as shown in FIG. The ozonizer 60 provided in the middle of the air passage 10 has a function of generating ozone in the air after the deodorization process and the humidification process are performed, and can perform the sterilization and deodorization process of the air. In this way, the air that has been subjected to the deodorizing process, the humidifying process, and the ozone generating process is discharged into the room from the air outlet 12.

6 is an enlarged cross-sectional view of a main part of the deodorizing unit of the deodorizer shown in FIG. The deodorizer with a humidifying function in the present embodiment performs the deodorizing process and the humidifying process of air in the order as described above, and periodically decomposes the odor component adsorbed by the catalyst filter 33 by the heating unit 35. The catalyst filter 33 can be regenerated by heating. As shown in FIG. 6, the heating unit 35 in the present embodiment is formed such that the depth d ₁ of the recess 351 a of the heat radiating plate 351 is smaller than the height n _{1 obtained} by adding the PTC heater 352 and the heater holding unit 353. Has been. Thus, when the catalyst filter 33 is disposed on the heat dissipation plate 351, one side (covering portion 353a) of the heater holding portion 353 that is held in contact with the PTC heater 352 is in direct contact with the catalyst filter 33 and the other side. The contact surface 352a is configured to be in direct contact with the bottom surface of the recessed portion 351a of the heat radiating plate 351, that is, the heat radiating plate 351. A gap δ corresponding to the difference between the depth d ₁ of the recess 351 a and the height n ₁ including the PTC heater 352 and the heater holding portion 353 is provided between the heat radiating plate 351 and the catalyst filter 33. It has been.

  Thus, the air permeability of the catalyst filter 33 is further enhanced by providing the gap δ between the heat radiating plate 351 and the catalyst filter 33. That is, although the heat radiating plate 351 is formed of a punching plate, there is a closed surface between the perforations of the punching plate, and when the gap δ is not provided, the closed surface is the catalyst filter 33. If it is in direct contact with the catalyst, the air permeability of the catalyst filter is lowered.

  Further, in this way, one side of the PTC heater 352 (actually contacting is the cover portion 353a of the heater holding portion 353) is in direct contact with the catalyst filter 33, and the other side of the PTC heater 352 (the contact surface 352a). ) Is directly brought into contact with the contacted portion of the heat radiating plate 351 (the bottom surface of the recessed portion 351a), whereby heat is directly transferred to the catalyst filter 33 from the PTC heater 352 through the heater holding portion 353, and the heat is dissipated. Heat is also transferred indirectly from the plate 351 via the gap δ (radiant heat).

  As described above, according to the deodorizer of this embodiment, even when a heating regeneration catalyst filter is heated using a small heater such as a PTC heater 352, the heater is directly connected via the heater holding portion 353. The entire catalyst filter 33 can be efficiently heated through contact or indirectly through the heat dissipation plate 351. Therefore, there is no need to mount a conventional rotating mechanism for rotating the catalyst filter, and even a small heater such as a PTC heater can efficiently heat the entire large catalyst filter. A deodorizer with few failures can be provided.

  As shown in FIGS. 4 and 6, the heater holding portion 353 of the deodorizing unit 35 according to the present embodiment includes a lead wire drawing surface cover 353 d that covers the lead wire drawing surface 352 b that draws the lead wire 352 c from the PTC heater 352. The opposite surface covering 353c that covers the opposite surface 352d that is the opposite side surface may be configured to cover at least one of the opposite surface covering 353c. This makes it possible to transfer heat to the catalyst filter 33 or the heat radiating plate 351 without wasting heat generated from the PTC heater 352, so that the entire catalyst filter can be heated more efficiently. Further, since the lead wire lead-out surface cover 353d is disposed so as to face the opposite surface 352d, it can also have a function of preventing the PTC heater 352 from popping out when the lead wire 352c is pulled. .

  In addition, although the deodorizer of this invention was demonstrated taking the above-mentioned one embodiment as an example, it can change variously in the range which does not deviate from the summary of this invention, without being restricted to these embodiments. For example, the present invention can be applied to a deodorizer in which a humidification unit is deleted from a deodorizer with a humidification function or an ionizer that generates negative ions in addition to the ozonizer 60 employed in the present embodiment. .

DESCRIPTION OF SYMBOLS 1 Deodorizer 10 Air passage 11 Air inlet 12 Air outlet 13 Louver 17 Front panel 18 Side panel 19 Operation panel 20 Prefilter 21 Dust collection filter 30 Deodorizing unit 31 Heat shield plate 32 Plate-shaped heat insulating material 33 Catalytic filter 34 Annular heat insulation Material 35 Heating part 351 Heat sink 351a Recessed part (contacted part)
351b Lead wire extraction hole 352 PTC heater 352a Contact surface 352b Lead wire extraction surface 352c Lead wire 352d Opposing surface 353 Heater holding portion 353a Covering portion 353b Heat transfer portion 353c Opposing surface covering 353d Lead wire drawing surface covering material 36 Plate material Unit guide 40 Humidification unit 50 Blower 50a Blower fan 50b Sirocco fan 60 Ozonizer

Claims (5)

A deodorizer comprising a catalyst filter that adsorbs and decomposes odor components, and a heating unit that heats the catalyst filters and promotes decomposition of the odor components,
The heating unit includes a heater that generates heat by electric power supplied from a lead wire, and a contacted part that contacts the heater, and faces the catalyst filter from the heater through the contacted part. A heat radiating plate that radiates the transmitted heat, and a heater holding portion that holds the heater in a state of being in contact with the contacted portion,
The heater holding portion covers at least the entire heater side surface except for the contact surface of the heater that contacts the heat radiating plate, the lead wire drawing surface from which the lead wire is drawn, and the side surface opposite to the lead wire drawing surface. A deodorizer comprising: a cover part; and a heat transfer part that transfers heat released from a heater side surface to the heat radiating plate through the cover part. The catalyst filter has a catalyst layer formed on the surface of a metallic substrate,
The heat radiating plate includes a recessed portion in which the heater is accommodated, and a part of the cover portion is brought into contact with the catalyst filter to transfer heat of the heater from the cover portion to the catalyst filter. The deodorizer according to claim 1.   The deodorizer according to claim 1 or 2, wherein the heater is a PTC heater.   The deodorizer according to any one of claims 1 to 3, wherein the covering portion further covers a side surface opposite to the lead wire drawing surface. The deodorizer according to any one of claims 1 to 4, wherein the covering portion further covers the lead wire drawing surface.

Images