WO2013046772A1

WO2013046772A1 - Air purifier

Info

Publication number: WO2013046772A1
Application number: PCT/JP2012/059472
Authority: WO
Inventors: 好孝明里; 洋介久下; 柳内　敏行; 佐藤　明久
Original assignee: 三菱電機株式会社; 三菱電機ホーム機器株式会社
Priority date: 2011-09-28
Filing date: 2012-04-06
Publication date: 2013-04-04
Also published as: TW201319482A; JPWO2013046772A1; TWI464351B; JP5673845B2

Abstract

An air purifier (A) comprises: a body having formed therein a suction opening (11) and a discharge opening (42) which are open to the outside, the body also having an air flow path (R) which connects the suction opening (11) and the discharge opening (42); an air blowing means (44) incorporated within the body and introducing indoor air into the air flow path (R) leading from the suction opening (11) to the discharge opening (42); a deodorization element (62) provided in the air flow path (R) and allowing the introduced air to flow therethrough; a heating unit (63) for locally heating the deodorization element (62); a position change means (64) for changing the relative positional relationship between the heating unit (63) and the deodorization element (62); and a control means (47) for controlling the conduction of electricity to the air blowing means (44), the heating unit (63), and the position change means (64). The deodorization element (62) is configured so that the deodorization function thereof is recovered by heating the deodorization element (62) by the heating unit (63). The air purifier (A) is also provided with an angle detection means (71, 72, 62d) for detecting the relative positions of the heating unit (63) and the deodorization element (62).

Description

Air cleaner

The present invention relates to an air cleaner that removes odorous components in the air by passing indoor air sucked into the main body by a blower through a deodorizing unit and deodorizes the indoor air.

Conventionally, a main body case, an air inlet port formed on the front surface of the main body case, an air outlet port formed on the rear surface of the upper surface of the main body case, and provided in the main body case for sucking air from the air inlet port. A fan for blowing out to the air outlet, a fan motor for driving the fan, and a dust collecting filter provided on the upstream side of the fan for collecting dust in the sucked air; There is an air cleaner having a deodorizing part formed by adhering a catalyst to the surface of an adsorbent for adsorbing odorous components and a heating part for heating to recover the deodorizing function of the deodorizing part in the vicinity of the blowout port. .

Such an air purifier takes in indoor air from the air suction port into the main body case by driving a fan, removes dust with a dust collecting filter, and then odors in the indoor air flowing down to the deodorizing part. The room air is deodorized by adsorbing the components to the adsorbent of the deodorizing part.
And the odor component is removed because the adsorption material of the deodorizing part which adsorb | sucked the odor is heated by a heating part. As a result, the deodorizing function of the adsorbent can be recovered (for example, Patent Document 1).

Japanese Unexamined Patent Publication No. 2001-38126 (FIG. 1)

However, since the air cleaner described in Patent Document 1 is provided with a heater that is a heating unit that removes odor adsorbed by the adsorbent by heating the adsorbent, which is fixed to the adsorbent. A portion where the distance between the heater and the adsorbent is close and a portion where the adsorbent is separated are formed.
As a result, the adsorbent part close to the heater can be efficiently heated, so the odor is removed. However, the heat from the heater may not be efficiently transmitted to the adsorbent part away from the heater. Yes, there is a possibility that the odor cannot be completely removed.
Accordingly, with such a configuration, the ability of adsorbing material to adsorb odors cannot be sufficiently recovered, and there is a risk of degrading the deodorizing function of the air cleaner.

The present invention has been made to solve the above-described problems, can efficiently reduce the odor of indoor air, and can restore the function of an adsorbent that adsorbs odor efficiently. An object of the present invention is to provide an air purifier capable of performing the above.

In order to solve the above problems, a suction port and an air outlet that open the air cleaner toward the outside are formed, a main body having ventilation that communicates the suction port and the air outlet, and built in the main body. Blower means for introducing room air into the ventilation path from the inlet to the outlet, a deodorizing element provided in the ventilation path through which the introduced air can pass, a heating unit for locally heating the deodorizing element, A position changing means for changing the relative positional relationship between the heating unit and the deodorizing element, and a control means for controlling energization of the air blowing means, the heating unit and the position changing means, and the deodorizing element is heated by the heating unit. The deodorizing function is restored, and an angle detecting means for detecting the relative position of the heating unit and the deodorizing element is provided.
The angle detecting means has an angle plate disposed on the deodorizing element, an opposing light emitting portion and a light receiving portion, and detects the angle by detecting that the angle plate blocks light from the light emitting portion by the light receiving portion. It consisted of a sensor to do.

ADVANTAGE OF THE INVENTION According to this invention, more indoor air can be taken in, the odor of indoor air can be reduced efficiently, and the function of the adsorbent which adsorb | sucks an odor efficiently and reliably can be recovered | restored. An air purifier can be provided.

(A) Front view of air cleaner A according to Embodiment 1, (b) Top view of air cleaner A, (c) Side view of air cleaner A (A) Front view, (b) Top view, (c) Side view showing a state in which the front panel, prefilter, and HEPA filter of the air purifier A shown in FIG. 1 is an exploded perspective view of the air cleaner A shown in FIG. YY longitudinal sectional view of the air purifier A shown in FIG. (A) The perspective view seen from the front of the air cleaner A shown in FIG. 1, (b) The perspective view seen from the back of the air cleaner A shown in FIG. The perspective view which shows the state from which the front panel of the air cleaner A shown to Fig.5 (a), the pre filter, and the HEPA filter removed. (A) The perspective view which looked at the deodorizing part of the air cleaner A which concerns on Embodiment 1 from the front, (b) The perspective view which looked at the deodorizing part from the back 7 is an exploded perspective view of the deodorization unit shown in FIG. The perspective view which looked at the deodorizing element which concerns on Embodiment 1 from the front side The top view which shows the positional relationship of the optical sensor 70 which concerns on Embodiment 1, and the angle plate 62d. Schematic diagram showing the XX cross section of FIG. (A) Top view of the back surface of the heating unit of the air cleaner A according to Embodiment 1, (b) ZZ cross-sectional view of the heating unit (A) The perspective view of the back surface of the heating unit shown in FIG. 9, (b) The perspective view of the surface of the heating unit shown in FIG. (A) Front view of air cleaner A according to Embodiment 1, (b) Top view of air cleaner A, (c) Side view of air cleaner A (A) The perspective view seen from the front of the air cleaner A shown in FIG. 14, (b) The perspective view seen from the back of the air cleaner A shown in FIG. The top view seen from the bottom face side of the air cleaner shown in FIG.

(Embodiment 1)
Embodiment 1 of the present invention will be described below with reference to the drawings.
Referring to FIGS. 1 to 6, the air purifier A according to the present embodiment includes a main body case C forming an outer shell and various functional parts such as a deodorizing unit 60 provided in the main body case C.
The main body case C has a box shape made of resin, and includes a plurality of parts such as the front panel 10, the front case 20, and the rear case 40.

The front case 20 has a rectangular shape in front view and a frame-like frame 21 having a predetermined depth width as a base. A rectangular front opening 22 is formed on the front surface of the frame 21, and the rear opening is covered with a partition plate 23.
The partition plate 23 is formed with a circular rear opening 24 that opens rearward. That is, the front case 20 is in a state where the front opening 22 and the rear opening 24 communicate with each other.
The rear opening 24 of the partition plate 23 forms a bell mouth around a fan opening 44d of a blower fan 44 described later.

Next, the lower side of the frame 21 of the front case 20 protrudes forward from the left and right sides to form a lower protruding portion 25.
The upper side of the frame 21 protrudes forward from the two left and right sides to form an upper protruding portion 28. On the front side of the upper side of the upper side, a plurality of operation buttons, LEDs for forming a display unit, and the like An operation unit 26 is provided.
Corresponding to the operation unit 26, an operation board (not shown) on which these operation buttons and LEDs are mounted is provided inside the upper side of the upper side of the frame 21. The operation board is electrically connected to a control unit 47 described later.

Next, the front panel 10 has a rectangular shape when viewed from the front and can cover the front opening 22 of the front case 20 from the front.
Further, by forming a slit extending in the left-right direction on the front surface of the front panel 10, an air suction port 11 (hereinafter referred to as a suction port 11) communicating with the front panel 10 in the front-rear direction is formed. That is, the front panel 10 has air permeability so that air can flow through in the front-rear direction.

Next, the rear case 40 has a rectangular shape in a front view, a front opening 41 is opened on the front surface, an opening serving as an air outlet 42 (hereinafter referred to as an outlet 42) is formed on the upper surface, and the rear surface 43 is closed. It has a box shape.
And on the rear surface 43, a blower fan 44 which is a blowing means for taking room air into the air purifier, and a swirl shape that forms an air passage that guides the air flowing down from the blower fan 44 to the blowout port 42. A partition 45 is provided.

In addition, in a space formed by the rear case 40 and the partition 45 below the partition 45, a control unit 47 that controls each part of the air cleaner A based on a predetermined program is provided.
Furthermore, a louver 46 that changes the air direction of air blown out from the air outlet 42 into the room or closes the air outlet 42 is provided in the vicinity of the air outlet 42 in the upper part inside the rear case 40. Yes.
Note that a lattice is attached to the opening of the air outlet 42 so that the louver 46 cannot be directly touched.

Next, the blower fan 44 uses a multi-blade fan (sirocco fan) using multi-blade wings to which a large number of wings having a predetermined width are attached in the rotational direction. That is, the blower fan 44 has a large number of blades 44a at a predetermined radius from the rotation axis.
The blower fan 44 is attached to the rear surface 43 of the rear case 40 such that a motor 44b that rotates the wings 44a rotates in a horizontal direction with the rotation shaft 44c facing forward.

Further, the fan opening 44d surrounded by the wings 44a opens forward.
By attaching the blower fan 44 to the rear case 40 in this manner, the blower fan 44 sucks air from the fan opening 44d located in front of the rotation shaft 44c in the axial direction, and includes the upper part of the blower fan 44. Exhale air radially.

Next, the partition plate 45 is erected substantially vertically from the rear surface 43 of the rear case 40 so as to surround the blower fan 44, with one end of the right end 42 a of the air outlet 42 and the other end of the air outlet 42. It is connected to the left end 42b.
That is, the partition plate 45 is disposed in the rear case 40 so as to surround the blower fan 44 and to have a bag shape so that the end portion is connected to the outlet 42.

The louver 46 includes a plurality of plate-like wind direction plates 46a, a link mechanism 46c that connects the plurality of wind direction plates 46a to move the wind direction plate 46a to a predetermined angle, and a drive unit such as a motor that moves the link mechanism 46c ( (Not shown).
The louver 46 includes a plurality of plate-like wind direction plates 46a arranged in parallel so as to be parallel to each other at a predetermined interval from the opening of the air outlet 42. A shaft 46d formed at both ends of the wind direction plate 46a is pivotally supported by the air outlet 42.

The drive unit that moves the link mechanism 46c is connected to a control unit 47, which will be described later, and is driven by a predetermined program in accordance with the state of the air purifier A. Is changed.

Next, referring to FIG. 7 to FIG. 8, the deodorizing unit 60 is a part that removes odor from the inside of the air by passing the indoor air taken into the air purifier A, and a base on which various parts are provided. The frame 61, the deodorizing element 62, the heating unit 63 for locally heating the deodorizing element 62, and moving the deodorizing element 62 to change the relative positional relationship between the heating unit 63 and the opposing portion of the deodorizing element. Driving means 64 serving as position changing means.

First, the frame body 61 is a frame-like frame having a rectangular shape in front view and a predetermined depth width. The outer shape of the frame 61 is a size that can be fitted into the front opening 22 of the front case 20.
Further, an inner partition plate 65 is provided inside the frame body 61 so as to block the opening of the frame body 61 (so as to partition the opening forward and backward).

In the middle partition plate 65, a circular opening 65a communicating with the front and rear of the frame body 61 is formed. A central support 65b is located at the center of the opening 65a, and a plurality of beam portions 65c that are radially connected to the opening edge of the opening 65a are formed from the central support 65b. The beam portion 65c supports the central support body 65b. Further, the central support 65b is provided with a shaft 65j protruding rearward.

Further, an optical sensor 70 is provided in the vicinity of the shaft 65j where the central support 65b and the beam portion 65c are connected. The optical sensor 70 includes a light emitting unit 71 and a light receiving unit 72. In addition, the light emitting unit 71 and the light receiving unit 72 are arranged to face each other at a predetermined interval along the radial direction of the opening 65a with respect to the axis 65j.
The optical sensor 70 is connected to the control unit 47. When the light receiving unit 72 detects light emitted from the light emitting unit 71 (ON state), a detection signal is sent to the control unit 47.
Further, a frame 65h through which air can flow into the opening 65a is provided on the front side of the opening 65a. The frame 65h is for preventing the user from directly touching the deodorizing element 62 described later.

Further, a ring-shaped guide portion 65e is formed on the back surface (rear surface) of the middle partition plate 65 so as to stand rearward so as to surround the opening 65a.
A receiving portion 65f that receives the deodorizing element 62 when a deodorizing element 62 described later is attached to the guide portion 65e is provided at the edge of the guide portion 65e so as to protrude inward of the opening 65a.

In addition, the guide part 65e is located outside the circular opening edge of the circular opening 65a. That is, a gap r is formed between the edge of the opening 65a and the guide portion 65e. The diameter of the ring formed by the guide portion 65e is large enough to hold the deodorizing element 62 provided with each portion described later.

A sector-shaped region formed by a predetermined opening angle that extends equally to the left and right around the central support 65b is a region below the central support 65b of the opening 65a of the partition plate 65. It is covered with a lid 65d.
The lid body 65d is made of stainless steel, and is fixed to the beam portion 65c with screws or the like from the rear surface side (back surface side) of the intermediate partition plate 65.

Further, the lid 65d is disposed so as to face a heating unit 63 to be described later via the deodorizing element 62, and covers the heater unit 63a in a state facing the heater unit 63a of the heating unit 63. The size is possible. That is, the heating unit 63 and the lid 65d face each other to form a heating space for the deodorizing element 62 described later.
The lid 65d is provided with a black heat-resistant coating for improving the thermal emissivity.

Next, referring to FIG. 9, the deodorizing element 62 has a disk shape in plan view, is formed of ceramic or aluminum, and a catalyst is formed with a binder on a honeycomb core formed with a plurality of openings such as honeycomb openings. Is applied or impregnated.
In addition, this catalyst uses the catalyst which has the property to adsorb | suck an odor (especially ammonia odor), such as what used platinum system and manganese.

In addition, an opening 62c is formed at the center of the deodorizing element 62, and the front surface, which is a surface facing forward when the deodorizing element 62 is provided in the frame body 61, is formed of stainless steel that holds the deodorizing element 62. An element frame 62a is provided.
The deodorizing element 62 is provided with a plurality of angle plates 62d at a predetermined distance from the center of the deodorizing element 62 (the center of the opening 62c). The angle plate 62 d is erected perpendicularly to the surface of the deodorizing element 62, and the surface of each angle plate 62 d faces the center of the deodorizing element 62.

In addition, each angle plate 62d is located at the same distance from the center of the deodorizing element 62, and is provided at a predetermined interval from the adjacent angle plate 62d. That is, the plurality of angle plates 62d are arranged in an annular shape around the center of the deodorizing element 62.
Further, in the present embodiment, the respective angle plates 62d are arranged adjacent to each other so that the opening angles θ are every 45 degrees at the center of the deodorizing element 62.
The distance between the center of the deodorizing element 62 and the angle plate 62d is longer than the distance between the center of the central support 65b (shaft 65j) and the light emitting part 71, and the distance between the center of the central support 65b and the light receiving part 72 is longer. Shorter than distance.
Here, as described above, the deodorizing element 62 is formed of a honeycomb core, and a predetermined opening is formed in the element frame 62a provided on the front surface, so that the inside of the deodorizing element 62 penetrates in the front-rear direction. Air can flow.

Further, a gear portion 62 b is provided on the periphery of the deodorizing element 62 so as to surround the deodorizing element 62.
The diameter of the deodorizing element 62 including the gear portion 62 b is configured to be larger than the diameter of the circular opening 65 a formed in the intermediate partition plate 65.

Next, referring to FIGS. 12 to 13, the heating unit 63 includes a heater unit 63a which is a heating means for heating the deodorizing element 62, and a case 63b having a predetermined internal space for housing the heater unit 63a. It is composed of
The heater unit 63a is electrically connected to the controller 47 and is energized and controlled according to the state of the air purifier A.

The heater unit 63a includes a plate-like heat generating portion 63f and a heater portion 63g that heats the heat generating portion 63f. Furthermore, the planar shape of the heat generating portion 63f is a fan shape, and heat-resistant coating (black) for improving the emissivity of heat received from the heater 63g is applied to the surface.
That is, in the uter unit 63a, the plate-like heat generating portion 63f receives the heat generated by the heater portion 63g and radiates heat from the entire plate surface, thereby heating the opposing deodorizing element 62 with little unevenness.
When the heater unit 63a is energized for a predetermined period of time, a portion facing the deodorizing element 62 disposed with a predetermined gap from the heater unit 63a is removed from the predetermined deodorizing element 62. It is set to a heating capacity that can be raised to a temperature.

The heater 63g is a PTC heater that is a semiconductor ceramic mainly composed of barium titanate.
Since this PTC heater has self-temperature control and does not require external temperature control, it does not perform intermittent control like a thermostat, so it does not generate sparks or noise and should be used stably. Can do.

Next, the case 63b is formed with a concave portion 63c that holds the heater unit 63a inside, and a flange portion 63d that extends from the opening periphery of the concave portion 63c.
The recess 63c has a fan shape that matches the planar shape of the heater unit 63a, and the heater unit 63a is provided with the heater unit 63a facing the opening of the recess 63c. The flange portion 63d is formed with a screw hole 63e for allowing the screw to pass therethrough when the heating unit 63 is attached to a predetermined position.
The heating unit 63 configured as described above is configured in a fan shape in accordance with the shape of the heat generating portion of the heater unit 63a, and the opening of the recess 63c is also configured in a fan shape.

Next, referring to FIGS. 7 to 8, the driving means 64 rotates the deodorizing element 62 to change the relative positional relationship between the heating unit 63 and the opposed portion of the deodorizing element, that is, facing the heating unit 63. It is a position change means which changes the site | part of the deodorizing element 62 to perform.
The driving means 64 includes a motor 64a and a bracket 64b that holds the motor 64a. A gear is attached to the rotation shaft of the motor 64a. The motor 64a is electrically connected to the control unit 47 and is energized and controlled according to the state of the air cleaner A.

Referring to FIGS. 4 and 7 to 8, the deodorizing element 62, the heating unit 63, and the driving means 64 described above constitute the deodorizing unit 60 by being attached to the frame body 61 as follows.
First, from the back surface of the frame body 61, the opening 62c of the deodorizing element 62 is rotatably fitted into a shaft 65j provided on the center support body 65b. That is, the center support body 65b supports the deodorizing element 62 rotatably.

Thereby, the deodorizing element 62 is in the state where the deodorizing element 62 faces the opening 65a (facing the face) inside the guide portion 65e formed on the back surface (rear surface) of the frame body 61. And can be rotated freely.
A receiving portion 65f is formed on the edge of the guide portion 65e so as to protrude inward of the opening 65a. The receiving portion 65f is a receiving portion that receives the deodorizing element 62, and holds the deodorizing element 62 on the guide portion 65e from the rear (back surface) to such an extent that the movement of the deodorizing element 62 in the rotational direction is not significantly inhibited.

As described above, the deodorizing element 62 is attached to the frame body 61, so that the deodorizing element 62 faces the opening 65a of the intermediate partition plate 65, and the back surface (gap r) of the intermediate partition plate 65 and the guide portion 65e. And is rotatably held in a space surrounded by the receiving portion 65f.
The deodorizing element 62 is held by the guide portion 65e even if the shaft 65j provided in the central support 65b and the opening 62a of the deodorizing element 62 are not configured to have a relationship between the shaft and the bearing as described above. It may be a structure.

Referring to FIGS. 10 to 11, in the state where the deodorizing element 62 is held by the frame body 61 in this way, the distance between the center of the deodorizing element 62 and the angle plate 62d is the center of the central support 65b (shaft 65j). Longer than the distance between the light-emitting portion 71 and the light-receiving portion 72. Therefore, the deodorizing element 62 is attached to the central support 65d, so that the angle plate 62d can be positioned in the gap formed by the light emitting unit 71 and the light receiving unit 72.
Thereby, the angle plate 62d can block the state where the light emitting unit 71 and the light receiving unit 72 are directly opposed to each other.

That is, the deodorizing element 62 is supported by the shaft 65j and rotates, so that the angle plate 62d passes through the gap between the light emitting unit 71 and the light receiving unit 72. Thereby, the light emitting unit 71 and the light receiving unit 72 are directly opposed to each other (the state shown in FIG. 10B), or the opposed state is blocked (the state shown in FIG. 10A). Depending on the rotation angle, the light detection / non-detection state of the light receiving unit 72 can be created.
As described above, the optical sensor 70 composed of the light emitting unit 71 and the light receiving unit 72 and the angle plate 62d are combined in the front-rear direction to constitute an angle detecting means for detecting the angle at which the deodorizing filter 62 is rotated.

In the case of the present embodiment, the angle plate 62d is positioned with a predetermined interval from the center of the deodorizing element 62 so that the opening angle θ is every 45 degrees, so every time the deodorizing element 62 rotates 45 degrees. Further, light reaching the light receiving unit 72 from the light emitting unit 71 is blocked.
That is, the light detection signal sent to the control unit is interrupted every time the deodorizing element 62 rotates 45 degrees.
Thereby, the control part can detect correctly the angle which the deodorizing element 62 rotated. In addition, if said angle is set more finely, the rotation angle of the finer deodorizing element 62 can be detected.

Next, in the state where the deodorizing element 62 is arranged on the frame body 61 as described above, the heating unit 63 is attached to the frame body 61 so as to cover a part of the deodorizing element 62 as follows.
First, the heating unit 63 is disposed so as not to hinder the rotation of the deodorizing element 62 across the lower part from the center of the deodorizing element 62.
In this state, the opening of the recess 63c provided with the heater unit 63a faces forward so that the heater unit 63a of the heating unit 63 faces the deodorizing element 62 in direct proximity.

The heating unit 63 is screwed to a mounting position formed on the central support 65 b located in the opening 62 c of the deodorizing element 62 and the intermediate partition plate 65 located outside the deodorizing element 62.
In this state, the heating unit 63 and the lid 65d are in a positional relationship facing each other through the deodorizing element 62.

By configuring as described above, the heating unit 63 is fixed to the frame body 61 without hindering the movement of the deodorizing element 62 in the rotation direction.
In addition, since the heating unit 63 and the lid body 65d face each other and are disposed on the frame body 61, the heat of the heater unit 63a is stopped with the deodorizing element 62 interposed between the heating unit 63 and the lid body 65d. A space is formed. Furthermore, since the heat generating portion 63f is coated to improve the heat emissivity, it efficiently radiates the heat received from the heater 63g.
Thereby, the heating unit 63 is comprised so that the site | part of the deodorizing element 62 which opposes can be heated locally efficiently.

Next, in the driving means 64, the bracket 64 b is fixed to the middle partition plate 65 in a state where the motor 64 a is held by the bracket 64 b. At this time, the gear attached to the rotating shaft of the motor 64 a meshes with the gear 62 b provided on the deodorizing element 62.
Further, the arrangement position of the driving means 64 is the back surface of the middle partition plate 65 and the portion sandwiched between the opening 65 a and the corner 65 g of the middle partition plate 65. Further, the part where the driving means 64 is provided may be a part sandwiched by the opening 65a and the corner 65g located above the heating unit 63 among the four corners 65g.

By providing the driving means 64 in this way, the motor 64a is driven by the energization control by the control unit 47, whereby the deodorizing element 62 can be rotated with respect to the frame body 61, and the heating unit of the deodorizing element 62 is obtained. The part facing 63 can be changed.
That is, the relative positional relationship between the heating unit 63 and the deodorizing element 62 can be changed.
Further, since the drive unit 64 is provided at a position sandwiched between the opening 65a and the corner 65g, the dead space around the opening 65a formed in the rectangular partition plate 65 can be used effectively. Furthermore, since the drive means 64 is provided at a position away from the heating unit 63, the drive unit 64 can be made less susceptible to the influence of heat generated from the heating unit 63.

Next, the front panel 10, the front case 20, the rear case 40, and the deodorizing unit 60, each part of which is configured as described above, are assembled together with other functional parts as follows to configure the air purifier A. To do.
First, the rear case 40 is attached to the rear surface of the front case 20 with the opening 41 facing forward. At this time, the opening 44 d of the blower fan 44 provided in the rear case 40 is in a positional relationship opposite to the rear opening 24 formed in the partition plate 23 provided in the front case 20. Further, the opening center of the rear opening 24 coincides with the axial center of the rotating shaft of the blower fan 44 in the front-rear direction.

Next, the deodorizing unit 60 is configured such that the frame 61 is inserted into the front case 20 from the front opening 22 of the front case 20 and the outer periphery of the frame 61 is held inside the front case 20. 20 is attached.
In this state where the deodorizing part 60 is attached to the front case 20, the rear side of the deodorizing part 60 (position side where the heating unit 63 is attached) is arranged to face the rear opening 24 of the front case 20. The heating unit 63 is positioned between the deodorizing element 62 and the rear opening 24.

Here, the deodorizing element 62 and the partition plate 23 and the rear opening 24 of the front case 20 that form a bell mouth around the opening 44d of the blower fan 44 flow from the deodorizing element 62 to the rear opening 24. In order not to interfere, they are opposed to each other with a predetermined distance D.
The heating unit 63 is located at the part of the interval D formed in this way.

Next, a HEPA filter 12 having the same size as the opening of the frame body 61 is provided inside the frame body 61 of the deodorizing unit 60 attached to the front case 20. A prefilter 13 is provided so as to cover it.
And the air cleaner A is comprised by the front panel 10 being provided in the front side of the pre filter 13 between the upper protrusion part 28 and the lower protrusion part 25 of the front case 20.

The HEPA filter 12 is a filter for removing fine dust such as pollen, mite feces, mold spores and house dust contained in the air.
The pre-filter 13 is a coarse filter that removes a large amount of dust contained in the air in advance before filtering the air with the HEPA filter, and is for maintaining the effect of the HEPA filter for a long period of time.

Next, referring to FIG. 4, an air passage R is formed in the air cleaner A configured as described above, which takes in indoor air, cleans and deodorizes the air, and discharges the air into the room. . The air path R will be described along the air purifying operation state of the air purifier A and the flow of air taken into the inside.
First, a predetermined program for operating the air purifier A is executed when the user operates the operation unit 26 to input to the control unit 47.

After the above operation starts, the blower fan 44 is driven to generate a suction force for taking in room air from the suction port 11 into the air cleaner A, and the room air flows into the suction port 11.
The air taken in from the suction port 11 flows backward in the air cleaner A, removes large dust with the pre-filter 13, and then removes fine dust with the HEPA filter 12.

Next, the air from which the dust has been removed flows further rearward and reaches the deodorizing unit 60, passes through the opening 65a, and reaches the deodorizing element 62 disposed at a position facing the opening 65a. The deodorizing element 62 has a large number of honeycomb-shaped openings extending from the front surface to the back surface, and a catalyst for adsorbing odor is applied to the surface.

Therefore, when the odor-containing air passes from the front side to the back side of the deodorizing element 62, it passes through the honeycomb-shaped opening, and the catalyst applied to the deodorizing element 62 adsorbs the odor contained in the air. Odor is removed from the air.
Note that “the odor is removed from the air” includes not only a state in which the odor is completely removed from the air but also a state in which the odor is reduced from the state before the air passes through the deodorizing element 62.
Here, by continuing to operate the air purifier A as described above, the adsorbed odor is accumulated in the deodorizing element 62, and the deodorizing ability of the deodorizing element 62 increases as the adsorbed odor increases. It goes down.

Next, the air from which the dust and odor have been removed flows further rearward from the deodorizing element 62, passes through the rear opening 24 that opens in the partition plate 23 of the front case 20, and is disposed to face the rear opening 24. It flows to the blower fan 44.
The air flowing to the blower fan 44 flows from the front of the blower fan 44 in the axial direction to the inside of the fan opening 44d surrounded by the wings 44a, and into the radial direction of the blower fan 44 including the upper part of the blower fan 44. The air is discharged outside the blower fan 44.

The air discharged from the blower fan 44 is guided to the rear case 40 by the partition plate 45, the air direction is adjusted when passing through the louver 46, and the air purifier is directed upward from the air outlet 42 toward the air cleaner A. Blow out as clean air from inside machine A.
Thus, the ventilation path R is an air path that connects from the suction port 11 to the rear part of the air cleaner main body in the horizontal direction and changes the direction upward at this rear part to reach the air outlet 42.

That is, in the ventilation path R, a dust filtering filter such as the prefilter 13 and the HEPA filter 12 is disposed on the upstream side of the deodorizing element 62 when viewed with reference to the air flow. A bent portion that is a position where the direction of flow is bent and changed upward is formed. The sirocco fan which is the ventilation fan 44 is located in this bending part.
Since this sirocco fan takes in air from the rotation axis direction of the fan and exhales air taken in the radial direction of the fan, the indoor air creates a linear flow from the front of the main body case C to the rear, The direction of the wind can be efficiently changed toward 42.

Note that the front surfaces of the opening 44d of the deodorizing element 62, the prefilter 13, the HEPA filter 12, and the blower fan 44 are arranged in a direction perpendicular to the direction of the air flowing through the ventilation path R.
Thereby, the flow of air is straight up to the deodorizing element 62, and since the air hits each filter surface perpendicularly, the air flow is good.

Here, the position of the opening 65a is located at the center in the vertical direction of the front surface of the main body case C, and the relationship between the projected area X in the front view of the main body case C and the area Y in the front view of the opening 65a is
Y ≧ 0.6X
It is comprised so that.

Next, an operation (regeneration operation) for recovering the deodorizing performance of the deodorizing element 62 that has adsorbed a lot of odors and reduced the deodorizing performance due to the air cleaning operation (deodorizing operation) as described above will be described. .
When the accumulated operation time from the deodorizing performance recovery operation of the deodorizing element 62 that is started or last performed exceeds a predetermined time, the control unit 47 performs the deodorizing performance recovery operation as follows.

In a state where the blower fan 44 is stopped, that is, after the air purifier A finishes the air cleaning operation or in a state where the air cleaning operation is not performed, the control unit 47 energizes the heater unit 63a. As a result, the heater unit 63a generates heat, the portion of the deodorizing element 62 facing the heater unit 63a is raised to a predetermined temperature, and heated for a predetermined time.
The heating temperature and heating time of the deodorizing element 62 are a temperature and time sufficient to remove the odor adsorbed on the deodorizing element 62.

In addition, as for the site | part to which the deodorizing element 62 is heated, the front side is covered with the cover body 63d to which the coating which improves the emissivity of heat is given, and the rear side is covered with the heating unit 63 (heater unit 63a). Therefore, the deodorizing element 62 can be efficiently heated by the heat generated from the heater unit 63a and the heat radiated from the lid 63d.
Moreover, since the deodorizing element 62 is located between the heater unit 63a and the lid 63d, the heat radiated from these members easily stays in the vicinity of the deodorizing element 62, and the deodorizing element 62 is more efficiently installed. Can be heated.

Next, as described above, when the deodorizing performance recovery operation for the portion facing the heating unit 63 is completed, the control unit 47 operates the driving means 64 that rotates the deodorizing unit 62 to move the deodorizing unit 62 by a predetermined angle. Rotate.
By this operation, the portion where the heat treatment of the deodorizing element 62 facing the heating unit 63 is shifted in the rotation direction with respect to the heating element 63.

In the process as described above, the control unit 47 controls each unit using a control program including the following processing steps.
First, in a state where light from the light emitting unit 71 to the light receiving unit 72 is blocked by the angle plate 62d (a state in which the previous deodorizing element regeneration process has been completed), the driving means 64 is driven to move the deodorizing element 62 in a predetermined direction. Rotate to

Next, when the control unit 47 detects that the angle plate 62d rotating together with the deodorizing element 62 blocks the light from the light emitting unit 71 to the light receiving unit 72, the control unit 47 stops the driving means 64. Then, the rotation of the deodorizing element 62 is stopped.
That is, when the deodorizing element 62 is driven to rotate, the angle plate 62d adjacent to the rotation direction of the deodorizing element 62 of the angle plate 62d that has blocked the light to the light receiving unit 72 in the initial state is By blocking the light from the light emitting unit 71 to the light receiving unit 72, the deodorizing element 62 rotates by a predetermined angle and stops.

Next, in a state where the deodorizing element 62 is stopped, the control unit 47 energizes the heating unit 63 for a predetermined time to heat a portion where the deodorizing element 62 and the heating unit 63 are opposed to each other. Recover the deodorizing ability.
Note that the above control program stops the operation of the driving means if the light from the light emitting portion 71 is not blocked again by the angle plate 62d even if the driving means that is the position changing means of the deodorizing element is operated for a predetermined time. A processing step for displaying a predetermined error may be included.
As described above, the part of the deodorizing unit 62 that has been subjected to the heat treatment is removed from the position sandwiched between the heating unit 63 and the lid 63d, and the part of the deodorizing element 62 that has newly adsorbed a lot of odor is the heating unit 63. And the deodorizing ability is recovered by being heated and located at a portion sandwiched between the lids 63d.

The opening angle θ for rotating the deodorizing unit 62 is preferably the same as or smaller than the opening angle of the heat generating portion 63f of the fan-shaped heater unit 63a. That is, the angle formed by the adjacent angle plate 62d and the center of the deodorizing element 62 is preferably the same as or less than the opening angle of the heat generating portion 63f of the fan-shaped heater unit 63a.
By setting the rotation angle in this way, any part of the deodorizing unit 62 remains in front of the heat generating portion 63f and is subjected to heat treatment while the deodorizing unit 62 rotates once.
Moreover, the timing which moves the deodorizing unit 62 may be performed immediately after a heat processing, and may be performed immediately before the air purifying operation performed next.

By configuring each part of the air purifier A as described above, the following effects can be obtained.
As in the present embodiment, the configuration of the deodorizing element 62 and the heating unit 63 that locally heats the deodorizing element 62 can be changed so that the heating unit 63 can be downsized. it can.
The advantage of downsizing the heating unit 63 is, for example, that there is no need to arrange a large heater that faces the entire area of the deodorizing element 62 so that the entire area of the deodorizing element 62 can be reliably heat-treated. Enables simplification and cost reduction.

In addition, since the relative positional relationship between the heating unit 63 and the deodorizing element 62 can be changed, in order to deodorize the entire area of the deodorizing element 62, the opposing portion of the deodorizing element 62 and the heating unit 63 may be changed. 63 does not need to cover the whole area of the deodorizing element 62.
That is, the part where the deodorizing element 62 always faces the heating unit 63 may be a limited portion, so that the air flow through the heating unit 63 through the deodorizing element 62 is minimized. Thereby, it is possible to flow more air with respect to the deodorizing element 62, and more odor can be removed from the air at once.

Furthermore, since the relative positional relationship between the deodorizing element 62 and the heating unit 63 can be changed, the heating unit 63 can be reliably opposed to each part of the deodorizing element 62 and heated.
Thereby, the heating nonuniformity between each site | part of the deodorizing element 62 can be decreased, and the deodorizing capability of the deodorizing element 62 can be recovered | restored efficiently.

Furthermore, the air inlet 11 of the air cleaner A is formed in the front surface of the main body, and the air outlet 42 is formed in any one of the side surface, the top surface, or the back surface of the main body.
By comprising in this way, since the suction opening 11 which opens largely with respect to the generation source of an odor is easy to oppose, an odor can be suck | inhaled faster and an odor can be removed from indoor air.
Moreover, since the blower outlet 11 is formed in any one of the side surface, the top | upper surface, or the back surface of a main body, the purified air cannot flow easily to the generation | occurrence | production source of an odor, and diffusion of an odor can be prevented.

Further, the deodorizing element 62 is rotatably supported by the main body case C, and the heating unit 63 is fixed to the main body case C in the vicinity of the surface of the deodorizing element 62.
Accordingly, the heating unit 63 that generates heat from the heater unit 63a does not move inside the main body case C. Therefore, the wiring for supplying power to generate heat and the high-temperature portion are positioned inside the main body case C. It is not necessary to consider a wide range of heat countermeasures inside the main body case C by changing.
Further, since the surface facing the heating unit 63 is changed by the rotation of the deodorizing element 62, the entire surface of the deodorizing element 62 is made to face the heating unit 63 without any unevenness by moving the deodorizing element 62 only in one direction. Can do.

Furthermore, a light sensor 70 comprising a light emitting part 71 and a light receiving part 72 is provided on a central support that is on the fixed side inside the air purifier, and the deodorizing element 62 rotated by the driving means 64 is moved from the light emitting part 71 to the light receiving part 72. Since the angle plates 62d that block the light are arranged in a ring shape at predetermined intervals with the center of the deodorizing element 62 as a reference, the control unit detects the presence or absence of light detection of the light receiving unit 72, thereby rotating the deodorizing element 62. The detected angle can be detected.
Thereby, since the rotation of the deodorizing element 62 can be controlled according to the size of the heating unit 63 facing the deodorizing element 62, according to the timing of the heat treatment for recovering the deodorizing power of the deodorizing element 62, The heating unit 63 can be appropriately opposed to the region of the deodorizing element 62 to be heat-treated.
In particular, if the arrangement interval on the basis of the center of the deodorizing element of the angle plate 62d is the same as or smaller than the opening angle of the heat generating portion 63f of the fan-shaped heater unit 63a, the heat generating portion 63f is opened. Since the rotation of the deodorizing element 62 can be controlled at a rotation angle equal to or less than the angle, the heat generating portion 63f and the deodorizing element 62 can be made to face each other evenly. Thereby, the whole surface of the deodorizing element 62 can be heat-processed seamlessly.

Further, the control program used by the control unit first rotates the deodorizing element 62 in a predetermined direction by driving the driving unit 64 in a state where the light from the light emitting unit 71 to the light receiving unit 72 is blocked by the angle plate 62d. .
Next, when the control unit detects that the angle plate 62d that rotates together with the deodorizing element 62 blocks the light from the light emitting unit 71 to the light receiving unit 72, the control unit stops the driving means 64 and deodorizes. The rotation of the element 62 is stopped.
That is, when the deodorizing element 62 is driven to rotate, the angle plate 62d adjacent to the rotation direction of the deodorizing element 62 of the angle plate 62d that has blocked the light to the light receiving unit 72 in the initial state is By blocking the light from the light emitting unit 71 to the light receiving unit 72, the deodorizing element 62 rotates by a predetermined angle and stops.

Next, the controller deenergizes the deodorizing element 62 by energizing the heating unit 63 for a predetermined time in a state where the deodorizing element 62 is stopped, thereby heating the portion where the deodorizing element 62 and the heating unit 63 face each other. Restores ability.
Thus, since the heating control of the deodorizing element 62 and the deodorizing element 62 is performed, the portion that is to be dealt with by the heat treatment of the deodorizing element 62 is appropriately opposed to the heating unit 63 without causing a portion that is not heat-treated. Heat treatment can be performed.

In addition, even if the driving unit 64 that is the position changing unit of the deodorizing element 62 is operated for a predetermined time, the control program operates the driving unit 64 again if the light from the light emitting unit 71 is not blocked by the angle plate 62d. And a processing step of displaying a predetermined error may be included.
By making the control program in this way, the control unit can recognize even if the position changing means is operated or the deodorizing element 62 is not operated. Can respond.

Next, since the shape of the deodorizing element 62 is a disk shape, the rotation area where the deodorizing element 62 rotates can be minimized with respect to the area of the deodorizing element 62 viewed from the rotation axis direction.
That is, the arrangement area of the deodorizing element 62 inside the main body case C can be reduced.

Further, since the deodorizing element 62 rotates to change the surface facing the heating unit 63, if the shape of the deodorizing element 62 is a disk shape, the heater unit 63 a of the heating unit 63 is in the diameter direction of the deodorizing element 62. It is possible to heat many areas of the deodorizing element 62 with a size of at least the same as or smaller than the turning radius of the deodorizing element 62.

Furthermore, since the shape of the deodorizing element 62 is a disc shape, the circular shape has the largest area with respect to the opening area of the main body case C, which is a rectangular opening, while having a configuration that achieves the above effect. Since it can be formed, a region allowing deodorization can be formed larger.
Thereby, since more air can flow through the deodorizing element 62, the air volume can be increased while maintaining the deodorizing power.

Next, the deodorizing element 62 is coated or impregnated with a catalyst capable of decomposing ammonia. This makes it possible to configure an air purifier that can quickly deodorize pet odors and care odors in hospitals, care facilities, and care sites.
Especially in this embodiment, it is possible to remove odor from more air in a short time, so it is possible to quickly deal with odor problems such as nursing care in places where many people use such as hospitals and nursing care facilities. It is possible to solve.

Next, the blower fan, which is a blower, is located inside the ventilation path, and the deodorizing element 62 is located on the upstream side of the blower fan 44 in the ventilation path R, and is heated between the blower fan 44 and the deodorizing element 62. Unit 63 is located.
Since it is configured in this way, the space provided to reduce the pressure loss (loss of air flow) generated around the deodorizing element 62 and the opening 44 d of the blower fan 44 is used as the arrangement position of the heating unit 63. be able to.

Next, the heating unit 63 includes a case 63b that is open on the side facing the deodorizing element 62 and has a predetermined internal space, and an electric heater unit 63a that is located in the internal space of the case 63b and radiates heat through the opening. The heater unit 63a is set to a heating capacity capable of raising the facing portion of the deodorizing element 62 to a predetermined temperature when energized for a predetermined time. Thereby, the odor adsorbed on the deodorizing element 62 can be removed.
Moreover, the shape of the case 63b is a sector shape. Thereby, the area which covers the deodorizing element 62 can be minimized. The fan-shaped opening angle is configured based on a single rotation angle when the deodorizing element 62 is rotated.

Next, the control unit 47 has a built-in control program for driving the driving means 64 as position changing means at a predetermined timing to rotate the deodorizing element 62.
Thereby, when the deodorizing element 62 is heated, the control unit 47 can automatically face the portion of the deodorizing element 62 to be deodorized to the heating unit 63.

The control program includes a processing step of driving the driving means 64 at a predetermined timing to stop the deodorizing element after being rotated by a predetermined rotation angle and energizing the heating unit for a predetermined time in the stopped state.
Accordingly, a series of operations from the rotation of the deodorizing element 62 to the heating can be automatically performed by the control unit 47.

Next, in the ventilation path R,

dust filtration filters

12 and 13 are installed on the upstream side of the deodorizing element 62, and the front panel 10 which is a frame having air permeability can be attached to and detached from the front surface of the main body case C. The dust filtration filter can be taken out to the front of the main body case C with the frame body removed from the main body case C.
With this configuration, the dust filtration filter can be attached and detached from the front side of the main body case C, so that it is possible to improve the maintainability of the dust filtration filter to which large dust tends to adhere.

Next, the ventilation path R is bent upward on the downstream side of the deodorizing element 62, and the blower fan 44 is disposed at the bent portion, and the blower fan 44 rotates around a rotating shaft extending in the horizontal direction. And it is a multi-blade fan which sends out the air introduced from the front side of the main body case C also upwards.
Such a multi-blade fan (sirocco fan) takes in air from the rotation axis direction of the fan and exhales the air taken in the radial direction of the fan. Can be created, and the direction of the wind can be efficiently changed toward the air outlet 42.

Next, the heating unit 63 is attached to the main body so as to be positioned below the rotation center of the deodorizing element 62.
Thus, the center of gravity of the air purifier A can be lowered by disposing the heating unit having a certain amount of weight including the heater unit 63a or the like at a low position. Thereby, the air cleaner A which can be stably installed on the floor surface can be configured.

In addition, the position of the opening 65a is located at the center of the front surface of the main body case C in the vertical direction, and the relationship between the projected area A in the front view of the main body case C and the area B in the front view of the suction port is
“B ≧ 0.6A”
It is comprised so that.
This relationship is such that the opening 65a suction port can take in room air to the maximum with respect to the area of the main body case C in front view, and an air purifier that can take in more room air and flow it to the deodorizing element 62. Can be configured.

Next, the air cleaner A configured as described above is movable by being configured as shown in FIGS.
More specifically, the air purifier A according to the present embodiment is composed of a main body case C and various functional parts such as a deodorizing unit 60 provided in the main body case C.
The main body case C is formed of a resin and is composed of a plurality of parts such as the front panel 10, the front case 20, and the rear case 40, and the planar shape of the front and side surfaces is a vertically rectangular outer shell. Yes.

Further, four wheels 90 are provided at the bottom of the main body case C. Two wheels are provided at the bottom of the front case 20 and two at the bottom of the rear case 40, respectively, and the left and right sides of the main body case C are symmetric with respect to the center of the main body case C when viewed from the front side. One by one.

Further, a handle 91 that is gripped when the user moves the air purifier A is provided on the rear side of the upper part of the upper side of the frame 21 constituting the front case 20.
The handle 91 is installed such that the central axis of the grip portion 91a is at the center of the top surface of the main body case C and faces in the left-right direction. The position of the handle 91 in the front-rear direction with respect to the main body case C is located between the heating unit 63 and the blower fan 44. Moreover, the height L from the floor surface of the grip part 91a is comprised so that it may be located in the range of 700 mm or less.
Thus, in the state where each part is arranged, the wheel 90 is configured to be rotatable at least in the longitudinal direction of the grip part 91a.

As described above, by providing the main body case C so that the wheels can rotate in the longitudinal direction of the grip portion 91a of the handle 91, even a large air cleaner A can be easily pushed and pulled. It becomes.
In particular, since the front-rear position of the main body case C of the handle 91 is located between the heating unit 63 and the blower fan 44, the handle 91 is located at a substantially intermediate position of a portion having a large weight density. As a result, when the air cleaner is pushed and pulled while holding the handle 91, the air cleaner A can be moved using a position where the weight is relatively balanced as a fulcrum.
Therefore, it can be set as the air cleaner A which a user can carry easily.

Moreover, the air cleaner A of this Embodiment is comprised so that the height L from the floor surface of the grip part 91a of the handle 91 may be 700 mm or less.
Because of this structure, the average finger joint height (vertical distance from the floor to the middle finger joint when a person is standing on the floor) is about 695 mm for men and about 695 mm for women. Since it is about 632 mm and the whole is about 662 mm, the height of the handle 91 is easy to grip without being greatly bent by the user regardless of gender.

Furthermore, the depth S of the air cleaner A of the present embodiment is about 300 mm.
Because it is configured in this way, the average shoulder width of Japanese adults is about 426 mm for men, about 394 mm for women, and about 409 mm for the whole. When pushing and pulling more, it fits within the shoulder width of a person.
Thereby, the air cleaner A can move easily even in a narrow passage or place.

Furthermore, since the corridor width of a general household is about 850 mm to 900 mm, a space of about 550 mm to 600 mm can be secured when the air cleaner A is placed sideways in the corridor.
Therefore, even if the air purifier A is installed in a general household corridor, it is possible to secure a space enough for people and objects to pass.

Furthermore, since the corridor width of the care facility is about 1800 mm or more, when the air cleaner A is placed sideways in the hallway, a space of about 1500 mm can be secured.
Therefore, even if the air purifier A is installed in the corridor of the care facility, it is possible to secure a space enough for people and things to pass.
Moreover, since the wheelchair generally used is about 700 mm in width, even if the air purifier A is installed in the corridor of the care facility, the wheelchairs can pass each other.

A air purifier, C body case, R ventilation path, 10 front panel, 11 air inlet, 12 HEPA filter, 13 prefilter, 20 front case, 21 frame, 23 partition plate, 26 operation part, 40 rear case, 42 Air outlet, 44 blower fan, 45 partition plate, 46 louver, 46a wind direction plate, 46c link mechanism, 47 control unit, 60 deodorization unit, 61 frame, 62 deodorization element, 63 heating unit, 64 drive means, 65 partition Plate, 65d lid, 66 insulation, 67 cover, 90 wheels, 91 handle, 91a grip.

Claims

A main body case having a ventilation path that communicates the suction opening and the air outlet;
A blower means built in the main body case for introducing room air into the ventilation path from the suction port to the blowout port;
A disk-shaped deodorizing element that is rotatably supported with respect to the main body case and provided in the ventilation path, and through which the introduced air can pass.
A heating unit for locally heating the deodorizing element;
Position changing means for rotating the deodorizing element to change the relative positional relationship between the heating unit and the deodorizing element;
Control means for controlling energization of the blowing means, the heating unit, and the position changing means;
With
The deodorizing element has a function of recovering a deodorizing function by being heated by the heating unit,
An air cleaner comprising an angle detection means for detecting a rotation angle of the deodorizing element.
The angle detection means comprises an angle plate disposed on the deodorizing element, and an optical sensor provided on a fixed side that rotatably supports the deodorizing element,
The optical sensor includes a light emitting unit and a light receiving unit that receives light from the light emitting unit,
The air cleaner according to claim 1, wherein the angle plate is configured to be able to block light emitted from the light emitting unit to the light receiving unit at a predetermined interval.
The heating unit is arranged in a fan shape,
The angle plate is arranged in an annular shape at intervals of an angle equal to or smaller than the opening angle of the fan shape with reference to the rotation center of the deodorizing element. An air purifier as described in.
The control unit drives the position changing unit to rotate the deodorizing element until the angle plate blocks light directed from the light emitting unit to the light receiving unit, and then stops the heating unit. The air cleaner according to claim 2 or 3, wherein a process of energizing the air for a predetermined time is performed.
If the angle plate does not block the light directed from the light emitting unit to the light receiving unit even when the position changing unit is operated for a predetermined time, the control unit performs a processing step of displaying a predetermined error. The air cleaner according to claim 4, wherein the air cleaner is characterized in that: