JP2016180585A - Air cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an air cleaner that enables noise to be suppressed without deteriorating dust collection capacity and deodorization capacity.SOLUTION: An air cleaner 1 includes: a dust collection unit 22 comprising two electric dust collector with small air resistance; a deodorization unit 23 of which air resistance is reduced by making two heat radiation plates 23c cover only part of a deodorization filter 23a; and an air blower 25 having a turbo-fan 25a with reduced noise. Within a body 11, the dust collection unit 22, the deodorization unit 23 and the air blower 25 are provided in this order in the direction from an upper surface suction port 13a, a right surface suction port 13b and a left surface suction port 13c to an upper surface blowout port 14a, a right surface blowout port 14b and a left surface blowout port 14c. Preferably, the dust collection unit 22 and the air blower 25 are disposed so that a central height of a fan motor 25b is aligned with a height of a space between the first electric dust collector 22a and the second electric dust collector 22b of the dust collection unit 22.SELECTED DRAWING: Figure 3

Description

  The present invention relates to an air cleaner provided with a dust collection unit and a deodorization unit.

  2. Description of the Related Art Conventionally, as an air cleaner, there is one that sequentially passes air sucked into a main body casing by driving a blower provided in the main body casing through a dust collection filter, a humidifying unit, and a deodorizing unit (for example, Patent Document 1). reference).

  The air cleaner described in Patent Document 1 has a ventilation path that guides air sucked into the main body housing from the air suction port to the air blowout port, and in order in the direction from the air suction port to the air blowout port, the prefilter, A dust collection filter, a deodorizing unit, a humidifying unit, and a blower are arranged.

  The prefilter is formed in a mesh structure by weaving, for example, a thread-like PET material. The dust collection filter is formed, for example, by forming a nonwoven fabric into a pleated shape. A humidification unit is comprised with the humidification filter which has a pleat shape, and the water storage tank which supplies water to a humidification filter. The deodorizing unit includes a catalyst filter that adsorbs and decomposes odor components and a heating unit that covers the entire catalyst filter. The heating unit heats the catalyst filter to regenerate the deodorizing ability of the catalyst filter. The blower includes a fan motor having a variable rotation speed and a sirocco fan connected to the output shaft of the fan motor.

  The air sucked into the air passage from the air suction port by driving the blower removes dust contained in the air when passing through the pre-filter and dust collecting filter, and is humidified when passing through the humidifying unit. Odor components contained in the air are removed when passing. The air purified in this way is blown into the room from the air outlet by driving the blower.

JP 2014-52084 A

  Since the air cleaner described in Patent Document 1 employs a sirocco fan having a high static pressure, it is possible to secure an air volume necessary for air purification even if a dust collection filter or a deodorizing unit having a large air resistance is used. However, as described above, since the sirocco fan has a high static pressure, there is a limit in increasing the silence of the air cleaner. On the other hand, with a fan having a low static pressure, the air volume required for air purification cannot be ensured due to the air resistance of the dust collection filter and the deodorization unit, and the necessary dust collection capacity and deodorization capacity may not be obtained.

  An object of the present invention is to solve the above-described problems, and to provide an air purifier capable of obtaining necessary dust collecting ability and deodorizing ability and suppressing noise.

  The present invention solves the above-mentioned problem, and an air cleaner according to the present invention includes an air suction port that sucks air into the housing, an air blowout port that blows air out of the housing, and an air suction port. A main body provided with an air passage that communicates with the air outlet. The main body includes a prefilter, a dust collecting unit that further removes the air that has passed through the prefilter, a deodorizing unit that deodorizes the taken-in air, and a blower. The pre-filter is formed in an arch shape that is convex toward the front side of the main body, the dust collecting unit is configured by an electric dust collector, and the deodorizing unit applies an odor component to the substrate having a porous structure. It has a deodorizing filter provided with a deodorizing layer that decomposes and / or adsorbs, and is arranged so that the deodorizing filter is exposed in the main body, and the blower is a turbo fan that does not have a scroll housing and a fan that rotates the turbo fan And a motor.

  The air cleaner of the present invention includes a dust collection unit including an electric dust collector having a low air resistance, a deodorizing unit having a porous structure and a low air resistance, and a blower having a turbo fan. For this reason, even if a turbo fan with a lower static pressure than a sirocco fan, that is, with the same air resistance, has a lower air volume than a sirocco fan, a sufficient air flow rate can be secured inside the air purifier, so the necessary collection Dust ability and deodorizing ability can be obtained. Moreover, by using a turbo fan, noise can be suppressed as compared with the case of using a sirocco fan, and the quietness of the air cleaner can be improved.

It is an appearance perspective view of an air cleaner in an embodiment of the present invention. It is a top view of an air cleaner in an embodiment of the present invention. It is XX sectional drawing in FIG. It is YY sectional drawing in FIG. It is a principal part perspective view in embodiment of this invention, and is arrangement | positioning explanatory drawing of a dust collection unit. It is a principal part perspective view in embodiment of this invention, and is arrangement | positioning explanatory drawing of a deodorizing unit and a humidification unit. It is a principal part perspective view in embodiment of this invention, and is arrangement | positioning explanatory drawing of an air blower.

  Embodiments of the present invention will be described below in detail with reference to the accompanying drawings. The present invention is not limited to the following embodiments, and can be variously modified without departing from the gist of the present invention.

  As shown in FIGS. 1 and 2, an air cleaner 1 according to an embodiment of the present invention includes a top panel 11a, a right side panel 11b, a left side panel 11c, and a bottom part 11d, each molded with a synthetic resin material. A front panel 12 formed of a synthetic resin material is disposed on one surface of the main body portion 11 and a rear panel 14 formed of a synthetic resin material is disposed on the other surface. Is arranged. In the following description, the front panel 12 arrangement side of the main body 11 is referred to as the main body front side, and the rear panel 14 arrangement side of the main body 11 is referred to as the main body rear side as necessary.

A front panel 13 formed of a synthetic resin material is disposed in front of the front panel 12, and an upper surface suction port 13a that is an air suction port of the present invention, a right side surface is provided between the front panel 13 and the front panel 12. A suction port 13b and a left side suction port 13c are formed. Moreover, between the main-body part 11 and the rear panel 14, the upper surface outlet 14a which is the air outlet of this invention, the right side outlet 14b, and the left side outlet 14c are formed. In the air cleaner 1, the air sucked into the main body 11 from the upper surface inlet 13 a, the right side inlet 13 b, and the left side inlet 13 c is the upper surface outlet 14 a, right side outlet 14 b, and left side outlet 14 c. The air is dedusted / humidified and deodorized while being blown into the room.
As shown in FIGS. 3 and 4, the upper surface inlet 13a, the right side inlet 13b, and the left side inlet 13c, and the upper surface outlet 14a, the right side outlet 14b, and the left side outlet 14c are provided. The space inside the main body 11 that communicates becomes the ventilation path 10 in the air cleaner 1 of the present invention.

  An operation unit 15 is provided on the upper surface portion of the air cleaner 1 so as to cover a part of the upper surface suction port 13a. The operation unit 15 is provided with buttons for operating the air purifier 1 such as a power button and an operation mode switching button, and displays the operation state of the air purifier 1 and detection results in a detector such as a dust sensor (not shown). A display unit is arranged.

  As shown in FIG. 3, the air passage 10 inside the main body portion 11 of the air cleaner 1 has an upper surface outlet 14 a and a right side outlet from the upper surface inlet 13 a, the right side inlet 13 b, and the left side inlet 13 c. The prefilter 21, the dust collection unit 22, the deodorizing unit 23, the humidification unit 24, and the air blower 25 are arrange | positioned in order toward 14b and the left side surface outlet 14c.

  The prefilter 21 has a mesh structure formed by weaving, for example, a thread-like PET material, and collects dust contained in the air sucked into the main body 11. As shown in FIG. 4, the prefilter 21 is formed in an arch shape that is convex toward the front side of the main body, and therefore the upper surface suction port compared to the case where the prefilter 21 is flat. 13a, the area through which the air sucked into the main body 11 from the right side suction port 13b and the left side suction port 13c passes through the prefilter 21 is increased, so that more dust can be collected.

  As shown in FIGS. 3 and 5, the dust collecting unit 22 includes a first electric dust collector 22a and a second electric dust collector 22b, and the first electric dust collector 22a and the second electric dust collector 22b are vertically arranged. They are arranged side by side. The first electrostatic precipitator 22a and the second electrostatic precipitator 22b have a discharge electrode and a dust collection electrode (not shown), and charge fine dust or pollen that could not be collected by the prefilter 21 due to corona discharge by the discharge electrode. Then, charged dust or pollen is collected by the dust collecting electrode. Since the first electrostatic precipitator 22a and the second electrostatic precipitator 22b are mainly formed of the discharge electrode and the precipitating electrode described above and a housing for holding them, the dust collecting unit 22 has been described in the background art. The air resistance is small compared to a dust collection filter in which a nonwoven fabric is formed in a pleated shape. In FIG. 5, the drawing of the front panel 13 is omitted so that the dust collection unit 22 (the first electric dust collector 22a and the second electric dust collector 22b) can be easily seen.

As shown in FIGS. 3, 4 and 6, the deodorizing unit 23 includes a deodorizing filter 23 a and a heating unit 23 f which is a heating unit. As shown in FIG. 6, the deodorizing filter 23a has a disk-shaped porous structure such as a corrugated structure or a honeycomb structure formed by alternately laminating flat materials and bent materials continuously bent into a corrugated shape. The catalyst layer 23ab which is formed and adsorbs and decomposes the odor component on the base material 23aa is provided. As shown in FIGS. 3 and 4, the heating unit 23f includes a PTC heater 23b, two heat radiating plates 23c, two heat insulating materials 23d, and two cases 23e. The PTC heater 23b is attached to the heat radiating plate 23c disposed on the front side of the main body portion of the two heat radiating plates 23c, and heats the two heat radiating plates 23c. The two heat radiating plates 23c are each a metal plate formed in a substantially triangular shape, and are disposed so as to cover a part of the deodorizing filter 23a, as shown in FIGS. Since the two heat radiating plates 23c are configured so as to be in contact with the portion located at the center of the deodorizing filter 23a or the outer diameter side of the deodorizing filter 23a, the heat radiating plate disposed on the front side of the main body by the PTC heater 23b Not only 23c but also the heat sink 23c on the back side of the main body is heated. The heat insulating material 23d is disposed so as to cover the PTC heater 23b and the heat radiating plate 23c, and suppresses heat from the PTC heater 23b and the heat radiating plate 23c from escaping to the outside. The case 23e is formed in a shape that can hold the PTC heater 23b, the heat radiating plate 23c, and the heat insulating material 23d.
Thus, the deodorizing filter 23a has a porous structure, and since the heating unit 23f has a structure that covers only a part of the deodorizing filter 23a, the air resistance of the deodorizing filter 23a is small.

  When regenerating the deodorizing ability of the deodorizing filter 23a, the two heat sinks 23c are heated by the PTC heater 23b, and a part of the deodorizing filter 23a covered by the two heat sinks 23c is heated. By heating the deodorizing filter 23a while rotating the deodorizing filter 23a by a motor (not shown), decomposition of odor components adsorbed on the catalyst layer 23ab of the deodorizing filter 23a is promoted, and the deodorizing ability of the deodorizing filter 23a is regenerated. . Note that the deodorizing filter 23a may be heated not by rotating but by moving the heat radiating plate 23c. The deodorizing unit 23 is not limited to the above, and does not include any heating means (PTC heater 23b and heat radiating plate 23c). A unit may be configured and replaced with a new deodorizing filter if the adsorption capacity decreases.

  As shown in FIGS. 3, 4 and 6, the humidification unit 24 has a humidification filter 24a and a water storage tank 24b for storing water. The humidifying filter 24a is formed in a disk shape, and a part of the humidifying filter 24a is rotatably supported by a rotating shaft in a state where the humidifying filter 24a is immersed in water stored in the water storage tank 24b, and is rotated by a motor (not shown). Yes. The humidifying unit 24 is not limited to the above, and may be a humidifying filter that sucks moisture by capillary action instead of the humidifying filter 24a that sucks moisture by rotation. In FIG. 6, drawing of the members constituting the main body 11 other than the front panel 13 and the bottom 11d, the dust collection unit 22 and the like is appropriately omitted so that the deodorizing unit 23 and the humidifying unit 24 can be easily seen. doing.

  As shown in FIGS. 3, 4 and 7, the blower 25 has a turbo fan 25a and a fan motor 25b. The turbo fan 25a is made of a synthetic resin material and is connected to the output shaft of the fan motor 25b. The fan motor 25b has a variable number of rotations, and the fan motor 25b rotates, so that the turbo fan 25a also rotates. By the rotation of the turbo fan 25a, air flows into the air purifier 1 or air flows from the air purifier 1 into the air. leak. In FIG. 7, in order to make the blower 25 easy to see, members constituting the main body 11 other than the front panel 13 and the bottom 11d, a dust collection unit 22, a deodorizer collection unit 23, a humidification unit 24, etc. The drawing is omitted as appropriate.

  In the air cleaner 1 having the above-described configuration, when the user operates the operation unit 15 to start the operation of the air cleaner 1, the blower 25 is driven, and the first electric dust collector 22a of the dust collection unit 22 and Energization of the second electric dust collector 22b is started, and the humidifying filter 24a of the humidifying unit 24 starts rotating. When the blower 25 is driven, air is sucked into the main body 11 from the upper surface suction port 13a, the right side suction port 13b, and the left side suction port 13c.

  The air sucked into the inside of the main body 11 is: 1) In a place where the lower part of the deodorizing unit 23 and the upper part of the humidifying unit 24 are arranged in the front-rear direction in the ventilation path 10, the prefilter 21 → the dust collecting unit 22 → In the order of deodorizing unit 23 → humidifying unit 24, 2) in the place where the lower part of deodorizing unit 23 and the upper part of humidifying unit 24 in ventilation path 10 are not overlapped in the front-rear direction, prefilter 21 → dust collecting unit 22 → The air purifier 1 flows in the order of the deodorizing unit 23 or in the order of the prefilter 21 → the dust collecting unit 22 → the humidifying unit 24, and the air cleaner 1 passes through the upper surface outlet 14a, the right side outlet 14b, and the left side outlet 14c. It is blown out into the installed room.

  As described above, when air passes through the ventilation path 10 inside the air purifier 1, dust and pollen are removed by the pre-filter 21 and the energized dust collection unit 22. Further, the odor component is removed by the deodorizing unit 23 and is humidified by the humidifying unit 24. As described above, since the dust collection unit 22 is disposed on the air inlet side of the deodorizing unit 23, the air flowing into the deodorizing unit 23 is free from dust, pollen, dust, pollen, etc. Therefore, the deodorizing filter 23a of the deodorizing unit 23 is not clogged.

  As described above, the air purifier 1 according to the present embodiment has a deodorizing unit configured such that the dust collecting unit 22 including two electric dust collectors and the two heat radiating plates 23c cover only a part of the deodorizing filter 23a. It has the unit 23 and the air blower 25 which has the turbo fan 25a. As described above, the dust collection unit 22 has a lower air resistance than the dust collection filter in which the nonwoven fabric described in the background art is formed in a pleated shape, and the deodorization unit 23 also has the catalyst filter described in the background art. The air resistance is smaller than that of a deodorizing unit having a plate-shaped heating portion formed so as to have substantially the same area. As a result, when the static pressure is lower than that of the sirocco fan, that is, when the air resistance is the same, the air volume is smaller than that of the sirocco fan, but the turbo fan 25a is more efficient and less noise than the sirocco fan. Therefore, it is possible to realize the air cleaner 1 that suppresses noise while ensuring the necessary dust collection ability and deodorizing ability. The turbo fan 25a can be made smaller and thinner than the sirocco fan because the scroll housing provided in the sirocco fan is unnecessary. For this reason, it can prevent that the housing | casing dimension of the air cleaner 1 becomes large more than necessary, ensuring the distance L mentioned above.

  Further, since the air resistance of the dust collecting unit 22 and the deodorizing unit 23 is small, as shown in FIGS. 3 to 7, the upper surface outlet 14a is connected to the upper surface inlet 13a, the right side inlet 13b, and the left side inlet 13c. The air resistance does not increase so much even if the dust collecting unit 22, the deodorizing unit 23, the humidifying unit 24, and the blower 25 are arranged in this order toward the right side blower outlet 14b and the left side blower outlet 14c. The amount of air flowing through the ventilation path 10 inside the main body 11 is not reduced by driving. Then, by arranging the components side by side as described above, the main body portion 11 has a longer dimension in the front-rear (depth) direction, and each air suction port is disposed on the front side of the main body portion 11 to Since the air outlets are arranged on the back side, the distance L between each air inlet and each air outlet shown in FIG. 4 can be increased. As a result, the occurrence of a short circuit between the air inlet and the air outlet, in which the air blown into the room from each air outlet is immediately sucked into the air cleaner 1 from each air inlet, is suppressed. The

  Since the distance L in which the short circuit described above is difficult to occur can be realized, the upper surface suction port 13a for sucking air into the air cleaner 1 from the three directions of the upper end, the right end, and the left end in front of the main body 11, A right side suction port 13b and a left side suction port 13c can be provided, and an upper surface outlet 14a for blowing air in three directions from the upper end, the right end, and the left end behind the main body 11, and the right side A surface outlet 14b and a left side outlet 14c can be provided. Accordingly, the area of the air inlet and the air outlet can be increased, the air intake amount and the air discharge amount can be sufficiently secured, and the air cleaner 1 is installed by performing air intake and air discharge from three directions. The air can be sucked evenly to collect, humidify, and deodorize the air, and the purified air can be blown out and distributed throughout the room.

  3, the center height of the fan motor 25b is adjusted to the height of the space between the first electric dust collector 22a and the second electric dust collector 22b of the dust collection unit 22. In addition, it is desirable to arrange the dust collection unit 22 and the blower 25. In the vicinity of the center of the fan motor 25b, there is little air flow due to the rotation of the turbo fan 25a, so there is little air flow in the space near the center of the fan motor 25b inside the main body 11. Therefore, the height of the space between the first electric dust collector 22a and the second electric dust collector 22b, which has no dust collecting ability even when air passes, is adjusted to the height of the center of the fan motor 25b. As a result, the first electric dust collector 22a and the second electric dust collector 22b are arranged in a space where the blades of the turbo fan 25a where there is a large amount of air flow exist, so that the dust collection unit 22 can perform dust removal efficiently. .

  As described above, the air cleaner of the present invention exposes the dust collection unit composed of an electric dust collector having a low air resistance and the deodorizing filter 23a in which a catalyst layer is provided on a porous substrate to the air passage. A deodorizing unit with reduced resistance and a blower having a turbo fan are provided. For this reason, even if a turbo fan with a lower static pressure than a sirocco fan, that is, with the same air resistance, has a lower air volume than a sirocco fan, a sufficient air flow rate can be secured inside the air purifier, so the necessary collection Dust ability and deodorizing ability can be obtained. Moreover, by using a turbo fan, noise can be suppressed as compared with the case of using a sirocco fan, and the quietness of the air cleaner can be improved.

DESCRIPTION OF SYMBOLS 1 Air cleaner 10 Ventilation path 11 Main body part 12 Front panel 13 Front panel 13a Top surface inlet 13b Right side inlet 13c Left side inlet 14 Rear panel 14a Upper side outlet 14b Right side outlet 14c Left side outlet 15 Operation part 21 Prefilter 22 Dust collection unit 22a First electric dust collector 22b Second electric dust collector 23 Deodorization unit 23a Deodorization filter 23aa Base material 23ab Catalyst layer 23b PTC heater 23c Heat sink 23f Heating unit 24 Humidification unit 24a Humidification filter 24b Water storage tank 25 Blower 25 Fan 25b Fan motor

Claims (6)

An air inlet that sucks air into the housing, an air outlet that blows air out of the housing to the outside, and a main body portion that includes a ventilation path that communicates the air inlet and the air outlet.
In the main body part, an air purifier comprising a prefilter for removing the taken-in air, a dust collecting unit for further removing the air that has passed through the prefilter, a deodorizing unit for deodorizing the taken-in air, and a blower There,
The pre-filter is formed in an arch shape that is convex toward the front side of the main body,
The dust collection unit is composed of an electric dust collector,
The deodorizing unit has a deodorizing filter in which a deodorizing layer for decomposing and / or adsorbing an odor component is provided on a base material having a porous structure, and the deodorizing filter is disposed so as to be exposed in the main body.
The blower includes a turbo fan that does not include a scroll housing and a fan motor that rotates the turbo fan.
An air purifier characterized by that.   The said main body part is arrange | positioned in order of the said pre filter, the said dust collection unit, the said deodorizing unit, and the said air blower in the direction which goes to the said air blower outlet from the said air suction inlet. Air purifier. The deodorizing layer is a catalyst layer in which decomposition of odor components is accelerated by heating,
The deodorizing unit includes a heating unit that is formed so as to cover a part of the deodorizing filter and heats the deodorizing filter.
The air cleaner according to claim 1 or 2, wherein The deodorizing filter is formed in a disc shape and is rotatably supported in the main body.
The air cleaner according to any one of claims 1 to 3, wherein The air suction port is composed of an upper surface suction port, a right side suction port, and a left side suction port arranged on the front side of the main body,
The air outlet is composed of an upper surface outlet, a right side outlet, and a left side outlet that are disposed on the back side of the main body.
The air cleaner according to any one of claims 1 to 4, wherein At least the right side suction port and the left side suction port are inclined toward the front center side of the main body,
The air purifier according to claim 5.

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