HK1188575B - Air purifier - Google Patents

Description

Air purifier

Technical Field

The present invention relates to an air cleaner which deodorizes indoor air by allowing the indoor air sucked into a main body by a blower to pass through a deodorizing section to remove odor components in the air.

Background

There has conventionally been an air cleaner including a main body casing, an air suction port formed in a front surface of the main body casing, an air discharge port formed in a rear portion of an upper surface of the main body casing, a fan provided in the main body casing for sucking air from the air suction port and discharging the air to the air discharge port, a fan motor for driving the fan, and a dust collecting filter provided upstream of the fan for collecting dust in the sucked air, and including a deodorizing unit in a vicinity of the air discharge port, the deodorizing unit being formed by adding a catalyst to a surface of an adsorbing material for adsorbing an odor component, and a heating unit for heating the deodorizing unit to recover a deodorizing function of the deodorizing unit.

Such an air cleaner obtains indoor air from the air inlet into the main body case by driving the fan, removes dust by the dust collecting filter, and adsorbs an odor component in the indoor air flowing down to the deodorizing section to the adsorbing member of the deodorizing section, thereby deodorizing the indoor air.

The adsorbing material of the deodorizing section that adsorbs the odor can remove the odor component by being heated by the heating section, and the deodorizing function can be recovered (for example, patent document 1).

Prior art documents

Patent document

Patent document 1: japanese patent laid-open No. 2001-38126 (FIG. 1)

Disclosure of Invention

Problems to be solved by the invention

However, in the air cleaner described in the prior art document, since the heater as a heating portion for removing the odor adsorbed by the adsorbing material by heating the adsorbing material is fixed to the adsorbing material, a portion where the heater and the adsorbing material are close to each other and a portion where the heater and the adsorbing material are apart from each other are formed.

Accordingly, although the portion of the adsorbing member close to the heater is efficiently heated and the odor can be removed, the portion of the adsorbing member away from the heater may not efficiently transmit the heat from the heater, and the odor may not be reliably removed.

Further, since the heater is simply provided on the adsorbing material, the heat of the heater is easily released to the outside of the adsorbing material.

Therefore, in such a configuration, the odor adsorbing ability of the adsorbing material cannot be sufficiently recovered, and therefore, there is a concern that the deodorizing function of the air cleaner may be lowered.

The present invention has been made to solve the above-described problems, and an object of the present invention is to provide an air cleaner having a function of effectively recovering a function of an adsorbing member that adsorbs an odor, and capable of effectively reducing the odor of indoor air.

Means for solving the problems

In order to solve the above problem, an air cleaner includes: a main body casing having a suction port and a discharge port that are open to the outside, and having a ventilation path that communicates the suction port and the discharge port; a blowing member which is built in the main body casing and guides indoor air into a ventilation path extending from the suction port to the blowing port; a deodorizing element which is arranged in the ventilation path and through which the introduced air can pass; a heating unit that locally heats the deodorizing element; a frame body made of synthetic resin and provided with a deodorizing element and a heating unit; a position changing member for changing the relative position relationship between the heating unit and the deodorizing element; and a control member for controlling the energization of the air blowing member, the heating member and the position changing member, wherein the deodorizing element has a function of recovering the deodorizing function by being heated by the heating unit, and is rotatably attached to the frame, the heating unit is fixedly attached to the frame in a state of facing the deodorizing element, and a cover body for covering the heating unit is provided on the facing side of the heating unit via the deodorizing element.

Effects of the invention

According to the present invention, it is possible to provide an air cleaner capable of obtaining more indoor air, effectively reducing the odor of the indoor air, and effectively and reliably recovering the function of the adsorbing member for adsorbing the odor.

Drawings

Fig. 1 (a) is a front view of an air cleaner a according to embodiment 1, (b) is a plan view of the air cleaner a, and (c) is a side view of the air cleaner a.

Fig. 2 shows the air purifier a shown in fig. 1 with the front panel, pre-filter, and HEPA filter removed, (a) is a front view, (b) is a plan view, and (c) is a side view.

Fig. 3 is an exploded perspective view of the air cleaner a shown in fig. 1.

Fig. 4 is a Y-Y longitudinal sectional view of the air cleaner a shown in fig. 1.

Fig. 5 (a) is a perspective view of the air cleaner a shown in fig. 1 as viewed from the front, and (b) is a perspective view of the air cleaner a shown in fig. 1 as viewed from the rear.

Fig. 6 is a perspective view showing a state where the front panel, the pre-filter, and the HEPA filter of the air cleaner a shown in fig. 5 (a) are removed.

Fig. 7 (a) is a front view of the air cleaner a according to embodiment 1 with the front panel removed, and (b) is a cross-sectional view taken along line Z-Z of (a).

Fig. 8 (a) is a perspective view of the deodorizing section of the air cleaner a according to embodiment 1 as viewed from the front, and (b) is a perspective view of the deodorizing section as viewed from the rear.

Fig. 9 is an exploded perspective view of the deodorization section shown in fig. 8 (b).

Fig. 10 is a perspective view of the deodorizing element according to embodiment 1, viewed from the front side.

Fig. 11 is a plan view showing a positional relationship between the optical sensor and the angle plate in embodiment 1.

FIG. 12 is a schematic view showing the cross section X-X of FIG. 11 (a).

Fig. 13 (a) is a plan view of the back surface of the heating unit of the air cleaner a according to embodiment 1, and (b) is a Z-Z sectional view of the heating unit.

Fig. 14 (a) is a perspective view of the rear surface of the heating unit shown in fig. 10, and (b) is a perspective view of the front surface of the heating unit shown in fig. 10.

Fig. 15 is an air cleaner a according to embodiment 1, where (a) is a front view, and (b) is a plan view of the air cleaner a, and (c) is a side view of the air cleaner a.

Fig. 16 (a) is a perspective view of the air cleaner a shown in fig. 15 viewed from the front, and (b) is a perspective view of the air cleaner a shown in fig. 15 viewed from the rear.

Fig. 17 is a plan view seen from the bottom surface side of the air cleaner shown in fig. 15.

Detailed Description

(embodiment mode 1)

Embodiment 1 of the present invention will be described below with reference to the drawings.

Referring to fig. 1 to 6, the air cleaner a of the present embodiment includes a main body case C having an outer contour, and various functional components such as a deodorizing unit 60 provided in the main body case C.

The main body case C has a box shape formed of resin, and is composed of a plurality of portions such as the front panel 10, the front case 20, and the rear case 40.

The front case 20 is rectangular in front view, and is configured with a frame 21 having a frame shape with a predetermined depth and width as a base. A rectangular front opening 22 is formed in the front face of the frame 21, and the rear opening is covered with a partition plate 23.

A circular rear opening 24 that opens rearward is formed in the partition plate 23. That is, the front case 20 is in a state where the front opening 22 and the rear opening 24 communicate.

The rear opening 24 of the partition plate 23 is circular, and the center of the opening is shifted to the left from the center in the left-right direction when the main body is viewed from the front. The rear opening 24 is opened at a position facing a fan opening 44d of a blower fan 44 described later, and a bell mouth is formed around the fan opening 44 d.

Next, the lower edge of the frame 21 of the front case 20 integrally protrudes forward compared to the left and right sides 2 to form a lower protruding portion 25.

The upper side of the frame 21 is formed with an upper protruding portion 28 protruding forward from the left and right 2 sides, and an operation portion 26 including a plurality of operation buttons, LEDs forming a display portion, and the like is provided on the front side of the upper portion of the upper side.

An operation board (not shown) on which these operation buttons and LEDs are mounted is provided on the upper inner side of the upper side of the frame 21 corresponding to the operation unit 26. The operation board is electrically connected to a control unit 47 described later.

The front panel 10 is rectangular in front view and configured to cover the front opening 22 of the front case 20 from the front.

Further, an air inlet 11 (hereinafter, an inlet 11) communicating in the front-rear direction of the front panel 10 is formed in the front of the front panel 10 by forming a slit extending in the left-right direction. That is, the front panel 10 is secured with air permeability so that air can flow therethrough in the front-rear direction.

Next, the rear case 40 is rectangular in shape when viewed from the front, and has a box-like shape in which a front opening 41 is opened at the front, an opening serving as an air outlet 42 (hereinafter, outlet 42) is formed at the upper surface, and a rear surface 43 is closed. The air outlet 42 is located on the right side when the main body is viewed from the front.

A blower fan 44 as an air blowing member for taking the indoor air into the air cleaner and a scroll-shaped partition plate 45 forming an air passage for guiding the air flowing down from the blower fan 44 to the air outlet 42 are provided on the rear surface 43.

Further, a control unit 47 for controlling each unit of the air cleaner a according to a predetermined program is provided below the partition plate 45 in a space formed by the rear case 40 and the partition plate 45.

Further, a louver 46 that changes the direction of the 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 at the upper portion inside the rear case 40.

In addition, the opening portion of the air outlet 42 is installed in a grid so as not to directly contact the louver 46.

Next, as the air blowing fan 44, a sirocco fan (sirocco fan) using multi-blade blades, in which a plurality of blades having a predetermined width are attached in the rotational direction, is used. That is, the plurality of blades 44a of the blower fan 44 are located at predetermined radial positions from the rotation axis.

The blower fan 44 is mounted on the rear surface 43 of the rear case 40 such that the motor 44b that rotates the driving blade 44a extends the rotation shaft 44c in the horizontal direction toward the front.

Further, the fan opening 44d surrounded by the blades 44a opens forward.

By mounting the blower fan 44 on the rear case 40 in this manner, the blower fan 44 sucks air from the fan opening 44d facing the front in the axial direction of the rotary shaft 44c, and discharges the air in the radial direction of the blower fan 44 including above the blower fan 44.

The rotation center of the blower fan 44 is located on the left side from the center in the left-right direction when the main body is viewed from the front, and the fan opening 44d faces the rear opening 24 in this state. The blower fan 44 is configured to draw air in by rotating leftward when viewed from the front of the main body.

Next, partition plate 45 is erected substantially perpendicularly from rear face 43 of rear case 40 so as to surround the periphery of blower fan 44, and has one end connected to right end 42a, which is an opening edge of air outlet 42, and the other end connected to left end 42b of air outlet 42.

That is, the partition plate 45 surrounds the periphery of the blower fan 44, is formed into a bag shape by connecting both end portions thereof to the opening edge of the air outlet 42, forms an air passage for the air blown out from the blower fan 44, and is disposed in the rear case 40.

The air passage formed by the partition plate 45 and reaching the air outlet 42 is configured such that the air sending fan 44 is disposed on the left side of the left-right center of the main body of the air cleaner a, and the gap between the partition plate 45 and the fan 44 on the right side is wider than the gap on the left side.

By configuring the blower fan 44 and the partition plate 45 in this manner, the air blown out from the blower fan 44 reaches the air outlet 42 along the partition plate 45 while rotating in the left direction in accordance with the rotation of the blower fan 44.

At this time, since the blower fan 44 is disposed offset to the left side when viewed from the front of the main body and a large gap is formed between the right side of the blower fan 44 and the partition plate 45, air can efficiently flow from the blower fan 44 to the air outlet 42 that opens at the upper right side of the main body.

That is, the flow of air reaching the air outlet 42 from the blower fan 44 can be efficiently formed within the limited width of the left and right sides of the main body.

In the present embodiment, the center of the blower fan 44 is shifted to the left side, and the position of the air outlet 42 is shifted to the right side. In this case, the distance between the left side of the blower fan 44 and the partition plate is wider than the distance between the right side of the blower fan 44 and the partition plate, and the blower fan rotates rightward.

Next, the louver 46 is configured by a plurality of plate-like vanes 46a, a link mechanism 46c that moves the vanes 46a by a predetermined angle so as to connect the vanes 46a, respectively, and a driving unit (not shown) such as a motor that moves the link mechanism 46 c.

The louver 46 is arranged such that a plurality of plate-like wind direction plates 46a are respectively arranged in parallel with the opening of the air outlet 42 at predetermined intervals, and the wind direction plates 46a are each supported by the air outlet 42 via shafts 46d formed at both ends of the wind direction plate 46 a.

The drive unit for moving the link mechanism 46c is connected to a control unit 47 described later, and is driven according to a predetermined program in accordance with the state of the air cleaner a, and the orientation of the louver 46 is changed accordingly.

Next, referring to fig. 8 to 9, the deodorizing section 60 is a portion for removing odor from the interior of the air by passing the room air taken into the air cleaner a, and includes a frame 61 serving as a base on which various components are mounted, a deodorizing element 62, a heating unit 63 for locally heating the deodorizing element 62, and a driving member 64 serving as a position changing member for moving the deodorizing element 62 and changing a relative positional relationship between the heating unit 63 and the opposing portion of the deodorizing element.

First, the frame body 61 is a frame-shaped frame formed of synthetic resin, having a rectangular shape in front view and having a predetermined depth width. The outer shape of the frame 61 is sized to fit inside the front opening 22 of the front case 20. In addition, a thermoplastic resin (for example, ABS resin) having a heat resistance temperature of 90 to 110 ℃ is used as the resin material of the frame body 61.

As described above, in the air cleaner a, by partially using the highly heat-resistant components, the cost is lower than when using the highly heat-resistant material for the entire housing 61, and the moldability and the design property can be ensured.

Further, a partition plate 65 is provided inside the housing 61 so as to shield the opening of the housing 61 (so as to partition the opening front and back).

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

Here, referring to fig. 7, the center of the opening 65a, that is, the center support 65b is located on the center (on the center line L) in the left-right direction when the main body is viewed from the front.

Further, an optical sensor 70 is provided near the shaft 65j at a portion where the central support 65b and the beam portion 65c are connected. The optical sensor 70 includes a light emitting portion 71 and a light receiving portion 72. The light emitting section 71 and the light receiving section 72 are arranged in the radial direction of the opening 65a with respect to the shaft 65j, and are disposed to face each other with a predetermined gap.

The photosensor 70 is connected to the control unit 47, and transmits a detection signal to the control unit 47 when the light receiving unit 72 detects light emitted by the light emitting unit 71 (ON state).

Further, a frame 65h for allowing air to flow into the opening 65a is provided on the front side of the opening 65 a. The frame 65h is a member for preventing a user from directly contacting the deodorizing element 62 described later.

Further, an annular guide portion 65e is formed on the rear surface (rear surface) of the partition plate 65 so as to stand rearward and surround the opening 65 a.

A receiving portion 65f that receives the deodorizing element 62 when the deodorizing element 62 to be 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 65 a.

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

A region below the central support 65b of the opening 65a of the partition plate 65, that is, a fan-shaped region formed by a predetermined opening angle that is equally spread out in the left and right directions around the central support 65b, is covered with a plate-shaped and fan-shaped cover 65 d.

The cover 65d is made of stainless steel, and is fixed to the beam portion 65c by screws or the like from the rear surface side (back surface side) of the partition plate 65.

The cover 65d is disposed so as to face the heating unit 63 (described later) with the deodorizing element 62 interposed therebetween. The cover 65d is configured to have a size that can cover the heater unit 63a of the heating unit 63 in a state of facing the heater unit 63 a.

That is, the heating unit 63 and the cover 65d face each other with the deodorizing element 62 interposed therebetween, thereby forming a heating space of the deodorizing element 62 to be described later.

In addition, in order to transmit the heat from the heating unit 63, which has passed through the deodorizing element and reached the cover 65d, to the deodorizing element 62 more strongly, a black heat-resistant paint is applied to the surface of the cover 65d on the side opposite to the heating unit 63.

With such a configuration, when the cover 65d is heated by the heat from the heating unit 63, the heat is radiated from the surface of the black-painted cover 65d toward the deodorizing element 62, and a further temperature increase of the deodorizing element 62 can be obtained. That is, the reason why the cover 65d is painted black is to efficiently generate radiant heat.

Further, the surface of the cover 65d is not only black as described above, but also is a glossy surface, and the heat from the heating unit 63 that has passed through the deodorizing element and reached the cover 65d can be strongly reflected toward the deodorizing element 62.

By forming the cover 65d in a black and glossy surface in this manner, the temperature rise of the catalyst constituting the deodorizing element 62 can be more effectively obtained.

Further, a plate-like protective member 65k is provided on a portion of the front surface side of the partition plate 65 which faces the lid 65 d. The protective member 65k is formed in a fan shape that can cover the lid 65d, and is made of a material having high heat resistance (for example, SPS (syndiotactic polystyrene) resin).

By providing the protective member 65k covering the lid 65d from the front side of the partition plate 65 in this manner, thermal deformation of the housing due to heat generation of the heating unit 63 can be prevented. Accordingly, the influence of thermal deformation of the frame on the rotational operation of the deodorizing element 62 can be eliminated.

Further, a heat insulator 66 is provided between the protective member 65k and the cover 65 d. By providing the heat insulator 66 in this manner, heat conduction to the protective member 65k due to temperature rise of the lid 65d can be suppressed, heat dissipation from the lid 65d can be prevented, heat conduction to the housing can be suppressed, and temperature rise of the housing can be suppressed.

Next, referring to fig. 10, the planar shape of the deodorizing element 62 is a disk-like shape, and the center of a honeycomb formed of ceramic or aluminum and having a plurality of openings, such as the openings of the honeycomb cells, is coated or impregnated with a catalyst via a binder.

In addition, as the catalyst, a catalyst having a property of adsorbing odor (particularly ammonia odor) such as a catalyst using platinum or manganese is used.

An opening 62c is formed in the center of the deodorizing element 62, and an element frame 62a made of stainless steel for holding the deodorizing element 62 is provided on the front surface, which is the surface facing forward when the deodorizing element 62 is set in the frame 61.

A plurality of angle plates 62d are provided on the deodorizing element 62 at positions spaced apart from the center of the deodorizing element 62 (the center of the opening 62 c) by a predetermined distance. The angle plates 62d are arranged vertically with respect to the face of the deodorizing element 62, the face of the respective angle plate 62d facing the center of the deodorizing element 62.

The respective angle plates 62d are located at the same distance from the center of the deodorizing element 62, and are provided at predetermined intervals from the adjacent angle plates 62 d. That is, the plurality of angle plates 62d are arranged in a ring shape surrounding the center of the deodorizing element 62.

In the present embodiment, the respective angle plates 62d are disposed adjacent to each other at an opening angle θ of 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 equal to the distance between the center of the center support 65d (shaft 65 j) and the position where the gap formed by the light emitting section 71 and the light receiving section 72 is located.

Here, as described above, since the deodorizing element 62 is formed by the honeycomb center and the element frame 62a provided on the front surface has a predetermined opening, air can flow through the inside of the deodorizing element 62 in the front-rear direction.

Further, a gear portion 62b is provided around 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 62b is configured to be larger than the diameter of the circular opening 65a formed in the partition plate 65.

Next, referring to fig. 13 to 14, the heating unit 63 is composed of a heater unit 63a as a heating member for heating the deodorizing element 62, and a case 63b having a predetermined internal space for accommodating the heater unit 63a therein.

The heater unit 63a is electrically connected to the control unit 47, and is a member that is controlled by energization according to the state of the air cleaner a.

The heater unit 63a includes a plate-shaped heat generating portion 63f and a heater portion 63g for heating the heat generating portion 63 f. The heating portion 63f has a fan-shaped planar shape, and heat-resistant paint (black) is applied to the surface thereof to increase the emissivity of heat received from the heater portion 63 f.

That is, the heater unit 63a receives heat generated by the heater unit 63g through the plate-shaped heat generating unit 63f, and radiates heat from the entire plate surface, thereby heating the opposing deodorizing elements 62 with reduced unevenness.

The heater unit 63a is set to have a heating capacity capable of raising a portion facing the deodorizing element 62 disposed with a predetermined gap from the heater unit 63a to a predetermined temperature capable of removing odor adsorbed by the deodorizing element 62 when energized for a predetermined time.

The heater 63g is a PTC heater made of a semiconductor ceramic containing barium titanate as a main component.

Since this PTC heater has self temperature controllability, it is not necessary to control the temperature from the outside, and therefore, it is not necessary to control the temperature intermittently as in a thermostat, and therefore, it is possible to stably use the PTC heater without generating sparks or noises.

Next, the case 63b is formed with a recess 63c for holding the heater unit 63a therein and a flange 63d extending from an opening periphery of the recess 63 c.

The recess 63c has a fan shape conforming to the planar shape of the heater unit 63a, and the heater unit 63a is provided inside such that the heater unit 63a faces the opening of the recess 63 c. The flange portion 63d is formed with a screw hole 63e through which a screw passes when the heating unit 63 is attached to a predetermined position.

The planar shape of 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 fig. 8 to 9, the driving means 64 is a position changing means for changing a relative positional relationship between the heating unit 63 and a portion of the deodorizing element 62 facing the heating unit 63 by rotating the deodorizing element 62.

The drive member 64 is constituted by a motor 64a and a bracket 64b that holds the motor 64 a. A gear is attached to a rotating shaft of the motor 64 a. The motor 64a is electrically connected to the control unit 47, and is controlled by energization according to the state of the air cleaner a.

Referring to fig. 4 and 7 to 9, the deodorizing element 62, the heating unit 63, and the driving member 64 are attached to the frame 61 as described below to constitute the deodorizing section 60.

First, the shaft 65j provided on the center support 65b is rotatably fitted from the back surface of the frame 61 into the opening 62c of the deodorizing element 62 as a bearing. That is, the central support body 65b rotatably supports the deodorizing element 62.

Since the deodorizing element 62 is attached to the center support 65b in this manner, the center of rotation of the deodorizing element 62 is positioned at the center in the left-right direction when the main body is viewed from the front.

Further, since the rotation shaft 44c as the rotation center of the blower fan 44 is located at a position shifted to the left side from the center in the left-right direction when the main body is viewed from the front, the rotation center of the blower fan 44 is shifted to the left side from the rotation center of the deodorizing element 62.

Accordingly, the deodorizing element 62 is rotatably disposed in the guide portion 65e formed on the back surface (rear surface) of the frame 61 with respect to the frame 61 in a state where the deodorizing element 62 faces the opening 65a (a state where the deodorizing element faces the opening).

In this state, the receiving portion 65f that receives the deodorizing element 62 at the edge of the guide portion 65e so as to protrude inward of the opening 65a is held by the rear side (back side) of the deodorizing element 62 to such an extent that the movement of the deodorizing element 62 in the rotational direction is not significantly hindered.

By attaching the deodorizing element 62 to the frame body 61 in this way, the deodorizing element 62 is rotatably held in the space surrounded by the rear surface (gap r) of the partition plate 65, the guide portion 65e, and the receiving portion 65f in a state of facing the opening 65a of the partition plate 65.

Further, the shaft 65j provided on the central support 65b and the opening 62a of the deodorizing element 62 may be configured not to be in a shaft-bearing relationship as described above, and the deodorizing element 62 may be held by the guide 65 e.

Referring to fig. 11 to 12, in a state where the deodorizing element 62 is held by the frame 61 in this way, the distance between the center of the deodorizing element 62 and the angle plate 62d is equal to the distance between the center of the central support 65d (the shaft 65 j) and the gap formed by the light emitting section 71 and the light receiving section 72, and therefore, by attaching the deodorizing element 62 to the central support 65d, the angle plate 62d can be positioned in the gap formed by the light emitting section 71 and the light receiving section 72.

Accordingly, the angle plate 62d can shield the light emitting section 71 and the light receiving section 72 from direct opposition.

That is, the deodorizing element 62 is supported by the shaft 65j and rotated, so that the angle plate 62d passes through the gap between the light emitting section 71 and the light receiving section 72. Accordingly, the light emitting section 71 and the light receiving section 72 can be brought into a state of directly facing each other (the state of fig. 11 (b)) or a state of shielding the facing state (the state of fig. 11 (a)), and the light detecting/non-detecting state of the light receiving section 72 can be made based on the rotation angle of the deodorizing element 62.

In this way, the optical sensor 70 including the light emitting section 71 and the light receiving section 72 and the angle plate 62d are aligned in the front-rear direction, thereby constituting an angle detection means for detecting the angle of rotation of the deodorizing filter 62.

In the case of the present embodiment, since the angle plate 62d is positioned at a predetermined interval so as to be spaced apart from the center of the deodorizing element 62 by an opening angle θ of 45 degrees, light reaching the light receiving portion 72 from the light emitting portion 71 is shielded every 45 degrees of rotation of the deodorizing element 62.

That is, the deodorizing element 62 cuts off the detection signal of the light transmitted to the control unit every 45 degrees of rotation.

Accordingly, the control unit can accurately check the rotated angle of the deodorizing member 62. Further, by setting the angle to be smaller, the rotated angle of the deodorizing element 62 can be detected to be smaller.

Next, in a state where the deodorizing element 62 is disposed in the frame 61 as described above, the heating unit 63 is attached to the frame 61 as described below so as to cover a part of the deodorizing element 62.

First, the heating unit 63 is disposed so as not to interfere with the rotation of the deodorizing element 62 across a lower portion from the center of the deodorizing element 62.

In this state, the opening of the recess 63c provided with the heater unit 63a is directed forward so that the heater unit 63a of the heating unit 63 and the deodorizing element 62 are directly adjacent and opposed to each other.

The heating unit 63 is screwed to the mounting positions formed on the center support 65b positioned in the opening 62c of the deodorizing element 62 and the partition plate 65 positioned outside the deodorizing element 62.

In this state, the heating unit 63 and the cover 65d are in a facing positional relationship with each other with the deodorizing element 62 interposed therebetween. The heating unit 63 having a fan shape in a plan view covers a lower region from the rotation center of the deodorizing element 62 so as to have the same area on the left and right sides.

With the above configuration, the heating unit 63 is fixed to the frame 61 without hindering the movement of the deodorizing element 62 in the rotation direction.

Further, since the heating unit 63 and the cover 65d are disposed on the frame 61 so as to face each other, a space for retaining heat of the heater unit 63a is formed in a state where the deodorizing element 62 is interposed between the heating unit 63 and the cover 65 d. Further, since the heat generating portion 63f is coated to increase the heat emission rate, the heat received from the heater portion 63g is more efficiently emitted.

Accordingly, the heating unit 63 is configured to be able to effectively heat the part of the opposing deodorizing element 62 locally.

Next, the driving member 64 fixes the bracket 64b to the partition plate 65 in a state where the motor 64a is held by the bracket 64 b. At this time, the gear mounted on the rotation shaft of the motor 64a is engaged with the gear 62b provided on the deodorizing member 62.

The driving member 64 is disposed at a position on the rear surface of the partition plate 65, that is, a position sandwiched between the opening 65a and the corner 65g of the partition plate 65. The portion where the driving member 64 is provided may be a portion sandwiched between the opening 65a and the corner 65g located above the heating unit 63 out of the 4 corners 65 g.

By providing the driving member 64 in this manner, the motor 64a can be driven by the energization control by the controller 47 to rotate the deodorizing element 62 with respect to the frame 61, and the position of the deodorizing element 62 facing the heating unit 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 driving portion 64 is provided at a position sandwiched between the opening 65a and the corner 65g, a dead space around the opening 65a formed in the rectangular partition plate 65 can be effectively utilized. Further, since the driving member 64 is provided at a position away from the heating unit 63, the driving portion 64 can be configured to be less susceptible to the 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, which are configured as described above, are assembled with other functional components as described below, thereby configuring the air cleaner a.

First, rear case 40 is attached to the rear surface of front case 20 with opening 41 facing forward. At this time, opening 44d of blower fan 44 provided in rear case 40 and rear opening 24 formed in partition plate 23 provided in front case 20 are in a facing positional relationship. The opening center of the rear opening 24 coincides with the axial center of the rotation shaft of the blower fan 44 in the front-rear direction.

Next, the deodorizing unit 60 is attached to the front case 20 by inserting the frame 61 into the front case 20 from the front opening 22 of the front case 20 and holding the outer periphery of the frame 61 in the front case 20.

In the state where the deodorizing section 60 is attached to the front housing 20 in this manner, the rear surface side of the deodorizing section 60 (the side where the heating unit 63 is attached) is arranged to face the rear opening 24 of the front housing 20, and the heating unit 63 is located between the deodorizing element 62 and the rear opening 24.

Here, the deodorizing element 62 faces the partition plate 23 and the rear opening 24 of the front case 20, which are formed in a flared shape around the opening 44D of the blower fan 44, with a predetermined gap D therebetween so as not to obstruct the flow of air from the deodorizing element 62 to the rear opening 24.

In this way, since the distance between the portion of the blower fan 44 that sucks in the air and the pressure loss of the air flow such as the deodorizing element 62 is secured, the efficiency of the blower fan 44 that sucks in the air can be secured, and the deterioration of the aerodynamic performance can be suppressed.

The distance D is about 40mm to 60 mm.

The heating unit 63 is located at the position of the gap D thus formed.

Next, the HEPA filter 12 having the same size as the opening of the frame 61 is provided inside the frame 61 of the deodorization section 60 attached to the front case 20, and the pre-filter 13 is provided so as to cover the front surface of the HEPA filter 12.

The front panel 10 is provided on the front surface side of the pre-filter 13 so as to be sandwiched between the upper protruding portion 28 and the lower protruding portion 25 of the front housing 20, thereby constituting the air cleaner a.

The HEPA filter 12 is a filter for removing fine dust such as pollen, feces of mites, mold spores, and house dust contained in the air.

The pre-filter 13 is a coarse filter for removing large dust contained in the air in advance before the air is filtered by the HEPA filter, and is a filter for maintaining the effect of the HEPA filter for a long period of time.

Next, referring to fig. 4, a ventilation passage R for taking in indoor air, purifying and deodorizing the air, and discharging the air into the room is formed in the air cleaner a configured as described above. The air passage R will be described in terms of the air cleaning operation state of the air cleaner a and the flow of air obtained inside.

First, the user operates the operation unit 26 to input to the control unit 47, and thereby executes a predetermined program for operating the air cleaner a.

When the blower fan 44 is driven after the start of the above operation, a suction force for taking room air from the air inlet 11 into the air cleaner a is generated, and the room air flows into the air inlet 11.

The air taken in from the air inlet 11 flows backward inside the air cleaner a, and after large dust is removed by the pre-filter 13, fine dust is removed by the HEPA filter 12.

Then, the air cleaned with the dust flows further backward, reaches the deodorizing section 60, passes through the opening 65a, and reaches the deodorizing element 62 disposed at a position facing the opening 65 a. The deodorizing member 62 is formed with a plurality of openings in a honeycomb shape extending from the surface to the inside, and the surface is coated with a catalyst for adsorbing odor.

Therefore, when the air containing odor passes from the front side to the rear side of the deodorizing element 62, the air passes through the honeycomb-shaped openings, and the catalyst coated on the deodorizing element 62 adsorbs the odor contained in the air, thereby removing the odor from the air.

Further, "removing odor from the air" includes not only a state in which the odor is completely eliminated from the air, but also a state in which the odor is reduced from a state before the air passes through the deodorizing element 62.

Here, by continuing the operation of the air cleaner a as described above, the adsorbed odor is gradually accumulated in the deodorizing element 62, and the deodorizing ability of the deodorizing element 62 is gradually decreased as the adsorbed odor increases.

Then, 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 flows toward the blower fan 44 that is disposed so as to face the rear opening 24.

The air flowing toward the blower fan 44 flows down from the axial front of the blower fan 44 toward the inside of the fan opening 44d surrounded by the blades 44a, and is discharged to the outside of the blower fan 44 in the radial direction of the blower fan 44 including above the blower fan 44.

The air discharged from the blower fan 44 is guided by the partition plate 45 toward the rear case 40, and when the louver 46 passes, the air direction is adjusted, and the air is blown out as purified air from the inside of the air purifier a toward the upper direction of the air purifier a from the air outlet 42.

In this way, the air passage R is an air passage that extends horizontally from the air inlet 11 to the rear of the air cleaner body, changes its direction upward at the rear, and reaches the air outlet 42.

That is, the ventilation passage R is provided with a dust filter such as the pre-filter 13 or the HEPA filter 12 on the upstream side of the deodorizing element 62 when viewed with respect to the flow of air, and a curved portion is formed on the downstream side of the deodorizing element 62 as a position where the direction of the flow of air is curved upward. A sirocco fan as the blowing fan 44 is located at the bent portion.

Since the sirocco fan takes in air from the direction of the rotation axis of the fan and discharges the taken-in air in the radial direction of the fan, the indoor air flows straight from the front to the rear of the main body casing C, and the direction of the wind can be changed efficiently toward the air outlet 42.

The front surfaces of the deodorizing element 62, the pre-filter 13, the HEPA filter 12, and the opening 44d of the blower fan 44 are arranged in a direction perpendicular to the direction of the air flowing through the air passage R.

Accordingly, the air flows straight to the deodorizing element, and the air vertically collides with each filter surface, so that the air flow is improved.

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 when the main body case C is viewed in front and the area Y when the opening 65a is viewed in front is "Y ≧ 0.6X".

Next, an operation (regeneration operation) for recovering the deodorization performance of the deodorization element 62, which adsorbs a large amount of odor and has a lowered deodorization performance by performing the air cleaning operation (deodorization operation) as described above, will be described.

The control unit 47 performs the deodorization performance recovery operation as described below when a predetermined time, for example, an accumulated operation time from the start of the operation or from the start of the deodorization performance recovery operation of the deodorization element 62 performed last time exceeds a predetermined time.

In a state where the blower fan 44 is stopped, that is, after the air purifier a has finished the air purifying operation or in a state where the air purifying operation is not performed, the control unit 47 energizes the heater unit 63a to cause the heater unit 63a to generate heat, thereby raising the portion of the deodorizing element 62 facing the heater unit 63a to a predetermined temperature and heating the same for a predetermined time.

The heating temperature and the heating time of the deodorizing element 62 are sufficient for removing the odor adsorbed on the deodorizing element 62.

Further, since the heated portion of the deodorizing element 62 is covered with the cover 63d coated with a coating material for increasing the heat emissivity on the front surface side and the heating unit 63 (heater unit 63 a) on the rear surface side, the deodorizing element 62 can be efficiently heated by the heat generated from the heater unit 63a and the heat radiated from the cover 63 d.

Further, since the deodorizing element 62 is located at a position sandwiched between the heater unit 63a and the lid 63d, heat radiated from these components is likely to remain in the vicinity of the deodorizing element 62, and the deodorizing element 62 can be heated more efficiently.

Next, when the deodorizing performance recovering operation of the portion facing the heating unit 63 is completed as described above, the controller 47 operates the driving member 64 of the rotary deodorizing unit 62 to rotate the deodorizing unit 62 by a predetermined angle.

By this operation, the part of the deodorizing element 62 facing the heating unit 63, at which the heating process is completed, is shifted in the rotational direction with respect to the heating unit 63.

In the above-described process, 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 section 71 to the light receiving section 72 is blocked by the angle plate 62d (a state where the previous deodorizing element regeneration process is completed), the driving member 64 is driven to rotate the deodorizing element 62 in a predetermined direction.

Next, when the control unit 47 detects that the angle plate 62d rotating together with the deodorizing element 62 shields light going from the light emitting unit 71 to the light receiving unit 72 next time, the control unit 47 stops the driving member 64 and stops the rotation of the deodorizing element 62.

That is, when the deodorizing element 62 is rotationally driven, the angular plate 62d located next to the angular plate 62d that shields the light going to the light receiving section 72 in the initial state and on the side opposite to the rotational direction of the deodorizing element 62 shields the light going from the light emitting section 71 to the light receiving section 72, and the deodorizing element 62 is rotated by a predetermined angle, and is stopped.

Next, the control unit 47 energizes the heating unit 63 for a predetermined time in a state where the deodorizing element 62 is stopped, thereby heating a portion where the deodorizing element 62 and the heating unit 63 face each other, and thereby recovering the deodorizing ability of the deodorizing element 62.

The control program may include a processing step of stopping the operation of the driving member as the position changing member of the deodorizing element and displaying a predetermined error if the light from the light emitting section is not shielded again by the angle plate even when the driving member is operated for a predetermined time.

As described above, the part of the deodorizing unit 62 having been subjected to the heat treatment is removed from the position sandwiched between the heating unit 63 and the cover 63d, and the part of the deodorizing element 62 having a large amount of newly adsorbed odor is positioned at the position sandwiched between the heating unit 63 and the cover 63d, and is heated to recover the deodorizing ability.

The opening angle θ for rotating the deodorization unit 62 may be the same as or smaller than the opening angle of the heating unit 63f of the fan-shaped heater unit 63 a. That is, the angle formed by the adjacent angle plate and the center of the deodorizing member 62 may be the same as or smaller than the opening angle of the heating section 63f of the fan-shaped heater unit 63 a.

By setting the rotation angle in this manner, any part of the deodorization unit 62 stays before the heating unit 63f during one rotation of the deodorization unit 62, and is subjected to heat treatment.

The timing of activating the deodorization unit 62 may be immediately after the heat treatment, or may be immediately before the next air cleaning operation.

By configuring the respective parts of the air cleaner a as described above, the following effects can be obtained.

By configuring such that the relative positional relationship between the deodorizing element 62 and the heating unit 63 that locally heats the deodorizing element 62 can be changed as in the present embodiment, the heating unit 63 can be downsized.

The advantage of the miniaturization of the heating unit 63 is, for example, that it is not necessary to arrange a large heater facing the entire region of the deodorizing element 62 in order to surely heat the entire region of the deodorizing element 62, and the structure can be simplified and the cost can be reduced.

Further, since the relative positional relationship between the heating unit 63 and the deodorizing element 62 can be changed, when deodorizing the entire region of the deodorizing element 62, it is only necessary to change the opposing portions of the deodorizing element 62 and the heating unit 63, and the heating unit 63 does not need to cover the entire region of the deodorizing element 62.

That is, since the portion of the deodorizing element 62 facing the heating unit 63 can be always completed in a limited portion, it is possible to complete the heating unit 63 with the least interference with the flow of the air flowing through the deodorizing element 62. Accordingly, more air can be made to flow through the deodorizing element 62, and more odor can be removed from the air at a time.

Further, 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 heated so as to face each part of the deodorizing element 62.

Accordingly, uneven heating between the respective portions of the deodorizing element 62 can be reduced, and the deodorizing ability of the deodorizing element 62 can be effectively recovered.

In particular, since the deodorizing element 62 is formed in a disk shape, the center of the deodorizing element 62 is aligned with the center of the air cleaner body in the left-right direction, and the deodorizing element 62 is rotatably provided with respect to the body, the dimension of the body in the left-right direction can be utilized to the maximum extent, the deodorizing element 62 can be made to be large to the maximum extent, and a larger deodorizing area of the deodorizing element can be secured.

The suction port 11 of the air cleaner a is formed in the front surface of the main body, and the discharge port 42 is formed in any one of the side surface, the top surface, and the back surface of the main body.

With such a configuration, the suction port 11 having a large opening is easily opposed to the source of the odor, and therefore, the odor can be sucked more quickly and removed from the indoor air.

Further, since the air outlet 11 is formed on any one of the side surface, the top surface, and the back surface of the main body, the purified air is less likely to flow toward the odor generation source, and the diffusion of the odor can be prevented.

Further, the deodorizing element 62 is rotatably supported by the main body casing C, and the heating unit 63 is fixed to the main body casing C in proximity to the surface of the deodorizing element 62.

Accordingly, since the heating unit 63, which is a portion where the heater unit 63a generates heat, does not move inside the main body casing C, it is not necessary to take measures against extensive heat inside the main body casing C due to the wiring for supplying power for generating heat and the change in position of a high-temperature portion inside the main body casing C into consideration.

Further, since the surface facing the heating unit 63 is changed by rotating the deodorizing element 62, it is possible to eliminate unevenness in facing the entire surface of the deodorizing element 62 to the heating unit 63 by moving the deodorizing element 62 in one direction.

Further, since the optical sensor 70 including the light emitting portion 71 and the light receiving portion is provided on the center support body which is a fixed side in the air cleaner, and the angle plate 62d which shields light from the light emitting portion 71 to the light receiving portion 72 is provided in a ring shape with respect to the center of the deodorizing element rotated by the driving means at a predetermined interval, the control portion can detect the presence or absence of the light detected by the light receiving portion 72, and detect the angle of rotation of the deodorizing element 62.

Accordingly, 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, the heating unit 63 can be appropriately faced to the region to be heat-treated of the deodorizing element 62 according to the timing of the heat treatment for recovering the deodorizing power of the deodorizing element 62.

In particular, if the arrangement interval of the angle plates with respect to the center of the deodorizing element is set to be equal to or smaller than the opening angle of the heating plate, the deodorizing element can be rotationally controlled at a rotation angle equal to or smaller than the opening angle of the heating plate, and thus, the heating plate and the deodorizing element can be prevented from being unevenly opposed. Accordingly, the entire surface of the deodorizing element can be subjected to the heating treatment without interruption.

In the control program used by the control unit 47, first, the drive member 64 is driven to rotate the deodorizing element 62 in a predetermined direction in a state where the light from the light emitting unit 71 to the light receiving unit 72 is blocked by the angle plate 62 d. Next, when the control unit 47 detects that the angle plate 62d rotating together with the deodorizing element 62 shields the light going from the light emitting unit 71 to the light receiving unit 72 next time, the control unit stops the driving member 64 and stops the rotation of the deodorizing element 62.

That is, when the deodorizing element 62 is rotationally driven, the angle plate 62d located beside the side of the angle plate 62d opposite to the rotational direction of the deodorizing element 62, which shields the light going to the light receiving section 72 in the initial state, shields the light going from the light emitting section 71 to the light receiving section 72. Accordingly, the deodorizing element 62 is stopped by rotating by a predetermined angle.

Next, the controller 47 energizes the heating unit 63 for a predetermined time in a state where the deodorizing element 62 is stopped, thereby heating a portion where the deodorizing element 62 and the heating unit 63 face each other, and recovering the deodorizing ability of the deodorizing element 62.

Since the heating control of the deodorizing element 62 is performed in this manner, the part of the deodorizing element 62 to be subjected to the heat treatment can be appropriately opposed to the heating unit, and the heat treatment can be performed without generating a part that is not subjected to the heat treatment.

Further, the control program may include a processing step of stopping the operation of the driving member 64 and displaying a predetermined error if the light from the light emitting unit 71 is not blocked again by the angle plate even if the driving member 64 as the position changing member of the deodorizing element 62 is operated for a predetermined time.

By making such a control program, the control unit 47 can recognize that the deodorizing element 62 is not operated even when the position changing member is operated, and therefore, it is possible to appropriately cope with an error display, an operation stop, and the like.

Next, since the shape of the deodorizing element 62 is a circular disk shape, the area of the rotating region in which the deodorizing element 62 rotates as viewed from the rotating shaft direction with respect to the deodorizing element 62 can be minimized.

That is, the arrangement area of the deodorizing element 62 in the main body case C can be made small.

Further, since the surface of the deodorizing element 62 facing the heating unit 63 is changed by the rotation, if the shape of the deodorizing element 62 is a circular plate shape, the size of the heater unit 63a of the heating unit 63 in the diameter direction of the deodorizing element 62 is at least the same as or smaller than the rotation radius of the deodorizing element 62, and therefore, a large area of the deodorizing element 62 can be heated.

Further, since the deodorizing element 62 has a circular plate shape, it has a structure for achieving the above-described effects, and since the circular shape can form a maximum area with respect to the opening area of the main body casing C having a rectangular opening, a larger deodorizing area can be formed.

Accordingly, since more air can be passed through the deodorizing element 62 and flow, the air volume can be increased while maintaining the deodorizing power.

Next, a catalyst having a function of decomposing ammonia is applied to or impregnated into the surface of the deodorizing element 62. Thus, an air cleaner capable of quickly deodorizing pet odor and nursing odor in hospitals, nursing facilities, nursing sites, and the like can be constructed.

In particular, according to the present embodiment, since odor can be removed from a larger amount of air in a short period of time, the trouble of odor in nursing care and the like in places used by a plurality of persons, such as hospitals and nursing facilities, can be promptly solved.

Next, a blower fan as a blower member is located inside the ventilation passage, the deodorizing element 62 is located on the upstream side of the blower fan 44 in the ventilation passage R, and the heating unit 63 is located between the blower fan 44 and the deodorizing element 62.

With this configuration, the gap provided to reduce the pressure loss (loss of air flow) generated around the deodorizing element 62 and the opening 44d of the blower fan 44 can be used as the position where the heating unit 63 is disposed.

Next, the heating unit 63 includes a case 63b having a predetermined internal space and an opening on a side opposite to the deodorizing element 62, and an electric heater unit 63a positioned in the internal space of the case 63b and radiating heat through the opening, and the heater unit 63a is set to have a heating capacity capable of raising an opposite portion of the deodorizing element 62 to a predetermined temperature when energized for a predetermined time. Accordingly, the odor adsorbed by the deodorizing element 62 can be removed.

The housing 63b has a fan shape. Accordingly, the area covering the deodorizing element 62 can be minimized. The opening angle of the sector is set to a rotation angle of one rotation of the deodorizing element 62.

Next, the control unit 47 incorporates a control program for driving the driving means 64 as the position changing means at a predetermined timing to rotate the deodorizing element 62.

Accordingly, when the deodorizing element 62 is heated, the part of the deodorizing element 62 to be deodorized can be automatically opposed to the heating unit 63 by the controller 47.

The control program includes a processing step of driving the driving means 64 at a predetermined timing, rotating the deodorizing element by a predetermined rotation angle, and stopping the driving means, and in this stopped state, energizing the heating means for a predetermined time.

Accordingly, a series of operations from the rotation to the heating of the deodorizing element 62 can be automatically performed by the control unit 47.

Next, the dust filtration filters 12 and 13 are provided on the upstream side of the deodorizing element 62 in the air passage R, the front panel 10 as a frame body having air permeability is detachably attached to the front surface of the main body case C, and the dust filtration filters can be taken out to the front of the main body case C in a state where the frame body is detached from the main body case C.

With this configuration, the dust-filtering filter can be attached to and detached from the front side of the main body case C, and therefore, the maintainability of the dust-filtering filter, to which large dust is likely to adhere, can be improved.

Next, the ventilation passage R is bent upward on the downstream side of the deodorizing element 62, and the air-sending fan 44 is disposed at the bent portion, and the air-sending fan 44 is a sirocco fan that rotates about a rotation shaft extending in the horizontal direction and sends out the air introduced from the front side of the main body case C upward.

Since such a sirocco fan (sirocco fan) takes in air from the direction of the rotation axis of the fan and discharges the air taken in the radial direction of the fan, it is possible to make a straight flow of indoor air from the front to the rear of the main body casing C and to efficiently change the direction of the wind toward the air outlet 42.

Next, the heating unit 63 is mounted on the main body at a lower side than the rotation center of the deodorizing member 62.

By thus disposing the heating unit having a certain degree of weight, such as the heater unit 63a, at a low position, the center of gravity of the air cleaner a can be lowered. This makes it possible to construct the air cleaner a stably installed on the floor surface.

The position of the opening 65a is located at the center in the vertical direction of the front surface of the main body casing C, and the relationship between the projected area A in the front view of the main body casing C and the area B in the front view of the suction port is "B.gtoreq.0.6A".

This relationship is a relationship in which the opening 65a suction port maximally draws in the room air with respect to the front view area of the main body casing C, and an air cleaner capable of drawing in more room air and circulating the room air to the deodorizing element 62 can be configured.

Next, the air cleaner a configured as described above is configured as shown in fig. 15 to 17 so as to be movable.

As will be described in detail below, the air cleaner a according to the present embodiment includes various functional components such as a main body case C having an outer contour and a deodorizing unit 60 provided in the main body case C.

The main body case C is made of resin, and is composed of a plurality of components such as the front panel 10, the front case 20, and the rear case 40, and the planar shapes of the front surface and the side surfaces are formed in a vertically long rectangular housing shape.

Also, four wheels 90 are provided at the bottom of the main body case C. The four wheels are provided two at the bottom of the front housing 20 and two at the bottom of the rear housing 40, and are respectively arranged on the left and right sides symmetrically with respect to the center of the main housing C when the main housing C is viewed from the front side.

Further, a handle 91 to be gripped by a user when moving the air cleaner a is provided on the rear side of the upper portion of the frame 21 constituting the front case 20.

The handle 91 is disposed such that the center 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 handle 91 is located between the heating unit 63 and the blower fan 44 in the front-rear direction with respect to the main body casing C. The height L of the handle portion 91a from the floor surface is set to be within a range of 700mm or less.

In the state where the respective portions are arranged as described above, the wheel 90 is configured to be rotatable at least in the longitudinal direction of the handle portion 91 a.

As described above, the wheels are rotatably provided in the main body case C in the longitudinal direction of the grip portion 91a of the handgrip 91, so that the air cleaner a can be easily pushed and pulled even if it is a large-sized air cleaner a.

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 position substantially in the middle of a heavy-weight portion. Accordingly, when the air cleaner is pushed and pulled by holding the handle 91, the air cleaner a can be moved about the position where the weight balance is relatively maintained as a fulcrum.

Therefore, the air cleaner a can be easily carried by the user.

The air cleaner a of the present embodiment is configured such that the height L of the grip portion 91a of the handle 91 from the floor surface is 700mm or less.

With this configuration, the average of the heights of the knuckles of the adult of japanese (the vertical distance from the floor surface to the middle-finger node in a state where the adult stands on the floor surface) is about 695mm for male, about 632mm for female, and about 662mm for the whole, and therefore, the height of the handle 91 is set to be a height that can be easily grasped by the user without greatly bending the waist regardless of gender.

The depth S of the air cleaner a of the present embodiment is about 300 mm.

With this configuration, the average shoulder width of an adult of japanese is about 426mm for men, about 394mm for women, and about 409mm for all, and therefore, regardless of gender, the air cleaner a is accommodated within the shoulder width of a person when pushed or pulled from the side.

Accordingly, the air cleaner a can be easily moved even in a narrow passage or place.

Further, since the corridor width of a typical household is about 850mm to 900mm, a gap of about 550mm to 600mm can be secured even when the air cleaner a is placed in the corridor so as to face laterally.

Therefore, even if the air cleaner a is installed in a corridor of a general household, a sufficient gap through which people and things can pass can be ensured.

Further, since the corridor width of the care facility is about 1800mm or more, a gap of about 1500mm can be secured when the air cleaner a is placed in the corridor so as to face laterally.

Therefore, even if the air cleaner a is installed in the corridor of the care facility, a sufficient clearance for people and things to pass through can be ensured.

Since the width of a wheelchair generally used is about 700mm, even if the air cleaner a is installed in a corridor of a care facility, the wheelchairs can pass through each other in a staggered manner.

Description of the reference numerals

A: an air cleaner; c: a main body case; r: an air passage; 10: a front panel; 11: an air intake; 12: a HEPA filter; 13: a pre-filter; 20: a front housing; 21: a frame; 23: a partition plate; 26: an operation section; 40: a rear housing; 42: an air outlet; 44: an air supply fan; 45: a partition plate; 46: a blind window; 46 a: a wind vane; 46 c: a link mechanism; 47: a control unit; 60: a deodorization part; 61: a frame body; 62: a deodorizing element; 63: a heating unit; 64: a drive member; 65: a middle dividing plate; 65 d: a cover body; 66: a thermal insulation member; 67: a cover; 90: a wheel; 91: a handle; 91 a: a handle portion.

Claims (3)

1. An air cleaner is characterized by comprising:

a main body casing having a suction port and a discharge port that are open to the outside, and having a ventilation path that communicates the suction port and the discharge port;

a blowing member that is built in the main body casing and introduces indoor air into the ventilation path extending from the suction port to the discharge port;

a deodorizing element which is provided in the ventilation passage and through which the introduced air can pass;

a heating unit for locally heating the deodorizing element;

a frame body made of synthetic resin and provided with the deodorizing element and the heating unit;

a position changing member for changing a relative positional relationship between the heating unit and the deodorizing element; and

a control means for controlling the energization of the air blowing means, the heating means and the position changing means,

a middle partition board is arranged in the frame body,

the partition plate has a circular opening communicating with the front and rear of the frame,

the deodorizing element has a function of recovering a deodorizing function by being heated by the heating unit, and is rotatably mounted in a guide portion formed in a rear surface of the frame body with respect to the frame body in a state of facing the opening,

the heating unit is fixedly mounted to the frame in a state of facing the deodorizing element,

a cover body made of stainless steel and covering the heating unit is provided on the opposite side of the heating unit with the deodorizing element interposed therebetween,

the portion of the frame body where the lid body is provided with a protective member made of a material having high heat resistance,

a heat insulating material is provided between the cover body and the protective member,

a filter is provided on the side opposite to the cover body with the protective member interposed therebetween,

a front panel detachably mounted on the front surface of the main body casing, the front panel having the suction port formed therein,

the filter removes dust contained in the air, and can be removed forward from the main body housing in a state that the front panel is removed from the main body housing, so as to perform maintenance of removing the attached dust,

a frame is provided in front of the opening, and the frame can allow air to flow in and prevent direct contact with the deodorizing element.

2. The air cleaner of claim 1, wherein the coating that increases the heat emission rate is applied to the cover.

3. The air cleaner according to claim 1 or 2, wherein the synthetic resin material of the frame is a thermoplastic resin having a heat resistance temperature of 90 to 110 ℃.