JP6405803B2 - Air cleaner - Google Patents

Description

  The present invention relates to an air cleaner provided with a deodorizing unit that can regenerate the deodorizing ability by heating.

  Conventionally, as an air purifier, the air sucked into the main body casing by driving the blower provided in the main body casing is passed through the deodorizing filter to adsorb the odor components contained in the air, and the deodorizing filter is heated to deodorize it. Something to play is proposed. Among such air purifiers, there is an air purifier that is provided with a heating unit that is disposed so as to cover a part of the deodorizing filter without being in contact with the deodorizing filter (for example, , See Patent Document 1).

  The air cleaner described in Patent Document 1 has an air flow path that guides air sucked into the main body housing from the air suction port to the air blowout port, and in order in the direction from the air suction port to the air blowout port, the prefilter The catalyst structure and the blower fan are arranged. The catalyst structure includes a disk-shaped adsorption plate (equivalent to a deodorizing filter) that adsorbs odor components in the air, a motor that rotates the adsorption plate, and a cover that covers a part of the adsorption plate. . The cover covers a part of the front surface and a part of the back surface of the adsorption plate. A catalyst plate for decomposing odor components, an adsorption plate and a catalyst plate are provided on each of the inner wall surfaces on the front side and the back side of the cover. Is provided with a heating element (corresponding to a heating section).

  When the blower fan is driven by this air cleaner, the air sucked into the air flow path from the air suction port is removed from the dust contained in the air by the pre-filter and reaches the suction plate, and is exposed from the cover of the suction plate. Odor components are adsorbed when passing through. The air purified in this way is blown out into the room again from the air outlet. On the other hand, a part of the adsorption plate covered with the cover is heated by the heating element, and the odor component adsorbed on the part is desorbed from the adsorption plate. The detached odor component is decomposed by the catalyst plate heated by the heating element. The suction plate is rotated by a predetermined angle (for example, 90 degrees) by a motor every predetermined time.

  In the above-described air purifier, a part of the adsorption plate covered with the cover is heated by a heating element to regenerate the deodorization ability, and the deodorization ability of the adsorption plate exposed from the cover can be removed. Less power is consumed than when the entire suction plate is heated at once with a heating element corresponding to the shape. In addition, since only a part of the adsorption plate is covered with the cover, the air resistance of the deodorizing filter is smaller than when a heating element formed corresponding to the shape of the adsorption plate is provided.

Japanese Patent Laid-Open No. 10-277365

  In the air cleaner described in Patent Document 1, as described above, the suction plate is rotated by a predetermined angle every predetermined time by a motor. However, in order to check whether the motor is rotating, a motor is used. A separate detection circuit for detecting rotation by using an electric current is necessary, and the configuration of the air cleaner is complicated.

  An object of the present invention is to solve the above-described problems and to provide an air cleaner that can detect whether or not a deodorizing filter is rotating with a simple configuration.

The present invention solves the above-mentioned problems, and an air cleaner according to the present invention includes an air suction port for taking air into the housing, an air outlet for discharging air from the housing to the outside, and an air suction port. And an air outlet that communicates with the air outlet, and a blower and a deodorizing unit that deodorizes the air taken into the ventilation passage by driving the blower are disposed in the ventilation passage. The deodorizing unit includes a deodorizing filter having a catalyst layer that adsorbs and decomposes odorous components contained in air, a heating unit that heats a part of the deodorizing filter, a drive unit that rotates the deodorizing filter, and a rotation of the deodorizing filter. And a rotation detecting means for detecting the rotation of the deodorizing filter. The rotation detection unit includes a sensor unit including a light emitting unit and a light receiving unit, and a light shielding unit that blocks light emitted from the light emitting unit between the light emitting unit and the light receiving unit. A first gear is provided on the outer peripheral portion of the deodorizing filter, and a second gear having a tooth portion meshing with the first gear and rotating in conjunction with the rotation of the deodorizing filter is provided. The light-shielding part rotates in conjunction with the rotation of the second gear by being fixed to the second gear. The rotation detecting means detects the rotation of the deodorizing filter by detecting whether the sensor unit receives light from the light receiving unit.

  Since the air purifier of the present invention includes rotation detection means for detecting the rotation of the deodorizing filter in conjunction with the rotation of the deodorizing filter, it has a simple configuration compared to a detection circuit that detects rotation using a motor current. Whether the deodorizing filter is rotating can be detected.

It is an appearance perspective view of an air cleaner in an embodiment of the present invention. It is a top view of an air cleaner in an embodiment of the present invention. It is XX sectional drawing in FIG. It is YY sectional drawing in FIG. It is a principal part perspective view in embodiment of this invention, and is arrangement | positioning explanatory drawing of a deodorizing unit. It is an exploded view of the deodorizing unit in the embodiment of the present invention. It is an exploded view of a heating part in an embodiment of the present invention. It is explanatory drawing of the member which comprises the rotation detection means of this invention, (A) is an external appearance perspective view of a 2nd gearwheel, (B) is an external appearance perspective view of a rotation detection part, (C) is a 2nd gearwheel and rotation detection. It is an external appearance perspective view in the state which combined the part. It is a principal part external appearance perspective view of the deodorizing unit of this invention, and is drawing explaining arrangement | positioning of a rotation detection means.

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

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

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

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

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

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

  As shown in FIG. 3, the dust collection unit 22 includes a first electric dust collector 22a and a second electric dust collector 22b. The first electrostatic precipitator 22a and the second electrostatic precipitator 22b are arranged side by side in the vertical direction on the partition plate 16 that is arranged on the front side of the main body 11 and constitutes a part of the main body 11. The first electrostatic precipitator 22a and the second electrostatic precipitator 22b have a discharge electrode and a dust collection electrode (not shown), and charge fine dust or pollen that could not be collected by the prefilter 21 due to corona discharge by the discharge electrode. Then, charged dust or pollen is collected by the dust collecting electrode. Since the first electrostatic precipitator 22a and the second electrostatic precipitator 22b are mainly formed by the above-described discharge electrode and dust collector, and a housing that holds them, the air resistance of the dust collector 22 is, for example, a non-woven fabric. Is smaller than the air resistance of a dust collection filter formed in a pleated shape.

As shown in FIGS. 3 to 5, the deodorizing unit 23 includes a deodorizing filter 23a, a heating unit 23f that is a heating unit, and a holding unit 23g. As shown in FIG. 5, the deodorizing filter 23a includes, for example, a corrugated structure formed by alternately laminating a flat plate material and a bending material formed by corrugating the flat plate material, or a porous structure base material such as a honeycomb structure. Is formed in a disk shape, and a catalyst layer 23ab for adsorbing and decomposing odorous components is provided on the base material 23aa. As shown in FIG. 5, the heating part 23f is formed in a substantially triangular prism shape that covers only a part of the deodorizing filter 23a. As shown in FIGS. 3 and 4, the heating unit 23f includes a PTC heater 23b as a heating element, a heat radiating plate 23c including a front side heat radiating plate 23ca and a back side heat radiating plate 23cb, and two heat insulating materials 23d. The case 23e is composed of a front case 23ea and a back case 23eb. The holding part 23g holds the deodorizing filter 23a and the heating part 23f, and is fixed to the back side of the dust collection unit 22 in the ventilation path 10. Thus, the deodorizing filter 23a has a porous structure, and since the heating unit 23f has a structure that covers only a part of the deodorizing filter 23a, the air resistance of the deodorizing filter 23a is small.
The structure of the deodorizing unit 23 will be described in detail later with reference to FIGS.

  As shown in FIGS. 3 to 5, the humidification unit 24 includes a humidification filter 24a and a water storage tank 24b for storing water. The humidifying filter 24a is formed in a disk shape, and a part of the humidifying filter 24a is rotatably supported by a rotating shaft in a state where the humidifying filter 24a is immersed in water stored in the water storage tank 24b, and is rotated by a motor (not shown). Yes. The humidifying unit 24 is not limited to the above, and may be a humidifying filter that sucks moisture by capillary action instead of the humidifying filter 24a that sucks moisture by rotation. Further, in FIG. 5, drawing of the members constituting the main body 11 other than the front panel 13 and the bottom 11d, the dust collecting unit 22 and the like is appropriately omitted so that the deodorizing unit 23 and the humidifying unit 24 can be easily seen. doing.

  As shown in FIGS. 3 and 4, the blower 25 includes a turbo fan 25a and a fan motor 25b. The turbo fan 25a is made of a synthetic resin material and is connected to the output shaft of the fan motor 25b. The fan motor 25b has a variable number of rotations, and the fan motor 25b rotates, so that the turbo fan 25a also rotates. By the rotation of the turbo fan 25a, air flows into the air purifier 1 or air flows from the air purifier 1 into the air. leak.

  Next, the detailed structure of the deodorizing unit 23 in this embodiment is demonstrated using FIG. 6 thru | or FIG. As shown in FIG. 6, in addition to the deodorizing filter 23a, the heating unit 23f, and the holding unit 23g, the deodorizing unit 23 rotates in conjunction with the rotation of the driving unit 23h, the driving gear 23j, and the deodorizing filter 23a. Two gears 23k, two rollers 23m among five rollers 23m provided in the deodorizing unit 23 in total, four pressing members 23n, and a sensor portion 23r. Further, as shown in FIG. 7, in addition to the PTC heater 23b and the two heat insulating materials 23d, the heating unit 23f includes a front side heat radiating plate 23ca and a second heat radiating plate 23ca that are the first heat radiating plates constituting the heat radiating plate 23c. It has a back side heat radiating plate 23cb which is a heat radiating plate, a front side case 23ea and a back side case 23eb constituting the case 23e, a heater case 23p, and the remaining three rollers 23m. In addition to the base material 23aa and the catalyst layer 23ab, the deodorizing filter 23a covers the first gear 23ac provided in the outer peripheral portion and the central hole 23ad and the central hole 23ad that are through holes provided in the central portion. And a cover portion 23ae. The deodorizing filter 23a is attached with a heating unit 23f so as to cover a part thereof.

  First, the member which comprises the heating part 23f, and the assembly method of the heating part 23f are demonstrated using FIG. The front-side heat radiating plate 23ca is formed using an aluminum material or an aluminum alloy material having good thermal conductivity. The front-side heat radiating plate 23ca is disposed on the front side of the deodorizing filter 23a and goes from the through hole 23ad of the deodorizing filter 23a toward the outer peripheral side. It is formed in a substantially triangular shape so that the width dimension in the left-right direction (circumferential direction of the deodorizing filter 23a) increases. Also, one surface of the front side heat radiating plate 23ca is a filter facing surface 23caa that faces the deodorizing filter 23a, and the other surface is a heater placement surface 23cab on which a PTC heater 23b and a heater case 23p described later are placed. .

  The rear side heat radiating plate 23cb is formed using an aluminum material or an aluminum alloy material having good thermal conductivity, and is disposed on the rear side of the deodorizing filter 23a in the same manner as the front side heat radiating plate 23ca, and is a through hole of the deodorizing filter 23a. The width dimension in the left-right direction (circumferential direction of the deodorizing filter 23a) increases from 23ad toward the outer peripheral side. The rear side heat radiating plate 23cb is in contact with the main body portion 23cc and the first joint portion 23cd and the second joint portion that are in contact with the front side heat radiating plate 23ca and transmit heat generated in the PTC heater 23b to the front side heat radiating plate 23ca to the main body portion 23cc. 23ce. The main body portion 23cc is formed in a substantially triangular shape, and one surface is a filter facing surface 23cca facing the deodorizing filter 23a, and the other surface is a heat insulating material disposing surface 23ccb on which the heat insulating material 23d is disposed. The first joint portion 23cd is formed by bending an outer peripheral side edge portion of the deodorizing filter 23a of the main body portion 23cc into a substantially L shape, and a surface joined to the front side heat radiating plate 23ca is a first joint surface 23cda. Yes. The second joint portion 23ce is formed by bending an inner peripheral side edge of the deodorizing filter 23a of the main body portion 23cc into a substantially L shape, and a surface joined to the front side heat radiating plate 23ca is a first joint surface 23cda. ing. The height dimension H between the filter facing surface 23cca of the main body 23cc and the first joint surface 23cda of the first joint portion 23cd and the second joint surface 23cea of the second joint portion 23ce is the thickness of the deodorizing filter 23a. The dimension is larger than the dimension T.

  The two heat insulating materials 23d are formed in a substantially triangular shape according to the shape of the front side heat radiating plate 23ca and the shape of the rear side heat radiating plate 23cb using a urethane foam material. The heater case 23p is formed in a bottomed rectangular parallelepiped shape using sheet metal. The heater case 23p is configured to accommodate the PTC heater 23b, and can be fixed to the filter facing surface 23caa, which is the surface facing the deodorizing filter 23a of the front side heat radiating plate 23ca.

  The three rollers 23m are formed using a synthetic resin material, and have a cylindrical portion 23mb, an upper flange 23mc, and a lower flange 23md. The cylinder portion 23mb is formed in a cylindrical shape, and is provided with a hole 23ma corresponding to the shape of the third shaft 23q provided in the front side case 23ea described later. The upper flange 23mc and the lower flange 23md are provided at both ends of the cylindrical portion 23mb, and are each formed in a disk shape having a larger diameter than the cylindrical portion 23mb. A dimension S between the upper flange 23mc and the lower flange 23md is larger than the thickness dimension T of the deodorizing filter 23a.

  The front side case 23ea is formed in a substantially triangular shape that is slightly larger than the front side heat radiating plate 23ca and the heat insulating material 23d using a synthetic resin material. The front side case 23ea includes a heat sink housing portion 23ec, a front side cover portion 23s, a pair of front side first flanges 23t, and a pair of front side second flanges 23u. The heat sink housing portion 23ec forms a box with a substantially triangular bottom surface 23eca, a first side surface 23ecb, a second side surface 23ecc, a third side surface 23ecd, and a fourth side surface 23ece that are erected from the outer periphery of the bottom surface 23eca. The front side heat radiating plate 23ca and the heat insulating material 23d are formed in a shape that can be accommodated. Here, the first side surface 23ecb is erected from the outer peripheral portion of the inner peripheral side of the deodorizing filter 23a in the outer peripheral portion of the bottom surface 23eca, and the fourth side surface 23ece is the outer periphery of the bottom surface 23eca of the deodorizing filter 23a. The second side surface 23ecc and the third side surface 23ecd are erected from the outer peripheral portion of the bottom surface 23eca other than the above. The front side cover portion 23s is formed by extending the side end portion of the first side surface 23ecb toward the outside of the heat sink housing portion 23ec, and is formed in a disk shape that is the same size as or slightly larger than the through hole 23ad. ing. The pair of front side first flanges 23t and the pair of front side second flanges 23u are formed by extending the side end portions of the second side surface 23ecc and the third side surface 23ecd toward the outside of the heat radiating plate housing portion 23ec. Each has a predetermined width dimension (for example, 20 mm). The third shaft 23q is provided on the front side cover portion 23s and the pair of front side second flanges 23u. The hole 23ma of the roller 23m is inserted into the third shaft 23q to hold the roller 23m rotatably. On the front side cover portion 23s and the pair of front side second flanges 23u, a wind shielding plate 23y is further erected toward the deodorizing filter 23a, and when the front side case 23ea and the rear side case 23eb are joined. In addition, the wind shielding plate 23y partitions the space formed by the front side case 23ea and the back side case 23eb from the external space, thereby preventing air from flowing into the heating unit 23f.

  Similarly, the back side case 23eb is formed in a substantially triangular shape that is slightly larger than the back side heat radiating plate 23cb and the heat insulating material 23d using a synthetic resin material. The back side case 23eb includes a heat sink housing portion 23ed, a back side cover portion 23v, a pair of back side first flanges 23w, and a pair of back side second flanges 23x. The heat sink housing portion 23ed forms a box with a substantially triangular bottom surface 23eda, and a first side surface 23edb, a second side surface 23edc, a third side surface 23edd, and a fourth side surface 23ede standing from the outer periphery of the bottom surface 23eda. The back side heat radiating plate 23cb and the heat insulating material 23d are formed in a shape that can be accommodated. Here, the first side surface 23edb is erected from the outer peripheral portion on the inner peripheral side of the deodorizing filter 23a in the outer peripheral portion of the bottom surface 23eda, and the fourth side surface 23ede is in the outer peripheral portion of the bottom surface 23eda. The second side surface 23edc and the third side surface 23edd are erected from the outer peripheral portion of the bottom surface 23eda other than the above. The back side cover portion 23v is formed by extending the side end portion of the first side surface 23edb toward the outside of the heat sink housing portion 23ed, and is formed in a disk shape that is the same size as or slightly larger than the through hole 23ad. ing. The pair of front side first flanges 23w and the pair of front side second flanges 23x are formed by extending side end portions of the second side surface 23edc and the third side surface 23edd toward the outside of the heat radiating plate housing portion 23ed. Each has a predetermined width dimension (for example, 20 mm).

  The assembly of the heating unit 23f having the members described above is performed as follows. First, the PTC heater 23b is accommodated in the heater case 23p, and the heater case 23p is fixed to the heater arrangement surface 23cab of the front side heat radiating plate 23ca with screws or the like. Next, after the second joint portion 23ce of the backside heat radiating plate 23cb is disposed in the center hole 23ad of the deodorizing filter 23a, the second facing surface 23cda of the backside heat radiating plate 23cb and the filter facing surface 23caa of the front side heat radiating plate 23ca The 2nd joint surface 23cea is joined, and the front side heat sink 23ca and the back side heat sink 23cb are joined.

  Next, the heat insulating material 23d is accommodated in the heat sink housing portion 23ec of the front case 23ea, and the holes 23ma of the rollers 23m are fitted to the respective third shafts 23q so that the three rollers 23m are attached to the front case 23ea. Installing. Next, the front-side heat radiating plate 23ca, the rear-side heat radiating plate 23cb, and the deodorizing filter 23a that are already assembled are mounted on the front-side case 23ea. At this time, the front side heat radiating plate 23ca is housed in the heat radiating plate housing portion 23ec of the front side case 23ea. Next, the outer peripheral portion (first gear 23ac) of the deodorizing filter 23a between the upper flange 23mc and the lower flange 23md of the two rollers 23m disposed on the two front side second flanges 23u of the front side case 23ea. Deodorizing so that the cover 23ae of the deodorizing filter 23a fits between the upper flange 23mc and the lower flange 23md of the roller 23m disposed on the front cover 23s of the front case 23ea. A filter 23a is attached. As described above, the height dimension H between the filter facing surface 23cca of the main body 23cc, the first joint surface 23cda, and the second joint surface 23cea is larger than the thickness dimension T of the deodorizing filter 23a. Therefore, the deodorizing filter 23a supported by the three rollers 23m is disposed at a predetermined distance from the front side heat radiating plate 23ca and the rear side heat radiating plate 23cb. Therefore, the deodorizing filter 23a can be stably rotated by the driving unit 23h described later without contacting the front side heat radiating plate 23ca and the rear side heat radiating plate 23cb.

  Finally, the heat insulating material 23d is disposed on the heat insulating material disposing surface 23ccb of the back surface side heat radiating plate 23cb, and the back surface heat radiating plate 23cb and the heat insulating material 23d are stored in the heat radiating plate housing portion 23ed of the back side case 23eb. The side case 23eb is covered, and the front side case 23ea and the rear side case 23eb are joined with screws or the like, and the assembly of the heating unit 23f is completed.

  Next, with reference to FIG. 6, a description will be given of members and mounting methods required when mounting the assembled heating unit 23f and deodorizing filter 23a on the holding unit 23g. The holding portion 23g is formed in a substantially square shape using a synthetic resin material, and an opening portion 23gd corresponding to the shape of the deodorizing filter 23a is provided in the central portion, and above the opening portion 23gd (the holding portion 23g). A heating portion fixing portion 23ge having a concave shape according to the shape of the heating portion 23f is provided at a location on the upper side when arranged in the ventilation path 10. Hereinafter, the upper portion is described. The two first shafts 23ga are arranged at both corners below the holding portion 23g (lower portions when the holding portion 23g is arranged in the air passage 10; hereinafter referred to as “lower”). A 23 m hole 23 ma is inserted to hold the roller 23 m rotatably. The second shaft 23gb is disposed on the left side of the heating unit fixing unit 23ge (left side when the deodorizing filter 23a is viewed from the front side), and is inserted into the light shielding unit 23kb of the second gear 23k described later to be inserted into the second gear. In addition to being formed in a cylindrical shape that can rotatably hold 23k, a cutout portion 23gbc is provided in a part of the cylindrical shape to form a C-shaped cross section. The cutout portion 23gbc is sized so that a main body portion 23ra of a sensor portion 23r described later can be inserted. The driving unit fixing unit 23gc is disposed on the right side of the heating unit fixing unit 23ge (the right side when the deodorizing filter 23a is viewed from the front side) and holds the driving unit 23h.

  The drive unit 23h is, for example, a stepping motor, and a drive gear 23j formed of a synthetic resin material is attached to the output shaft thereof. The drive gear 23j is a gear that meshes with the first gear 23ac of the deodorizing filter 23a.

  As shown in FIG. 8A, the second gear 23k is formed of a synthetic resin material, and includes a tooth portion 23ka, a light shielding portion 23kb, and a slit 23kb provided in the light shielding portion 23kb. The tooth portion 23ka is a gear that meshes with the first gear 23ac of the deodorizing filter 23a in the same manner as the drive gear 23j. The light shielding portion 23kb is formed in a cylindrical shape corresponding to the shape of the second shaft 23gb, and one end thereof is joined to the tooth portion 23ka. The slit 23kc is formed by cutting out a part of the light shielding portion 23kb.

  The sensor unit 23r is a photo interrupter (a sensor that has a light emitting unit and a light receiving unit that oppose each other, and detects the presence or position of an object by detecting that the object blocks light from the light emitting unit). Yes, as shown in FIG. 8B, it has a main body portion 23ra, a light emitting portion 23rc, a light receiving portion 23rb, a connector portion 23re, and a fixing portion 23rd. The main body portion 23ra is made of a synthetic resin material and has a substantially rectangular parallelepiped shape. The light emitting unit 23rc is disposed at an end of one surface of the main body 23ra, and is configured by a light emitting diode. The light receiving unit 23rb is disposed at a position facing the light emitting unit 23rc with a predetermined interval (for example, 5 mm) on the surface of the main body 23ra on which the light emitting unit 23rc is disposed, and is configured by a light receiving diode. . The connector part 23re is formed by extending a part of the main body part 23ra, and includes a power supply terminal (not shown) for supplying power to the light emitting part 23rc, and an output terminal (not shown) for outputting the detection value of the light receiving part 23rb. And a ground terminal (not shown). The fixing portion 23rd is formed by extending a part of the main body portion 23ra from the surface of the main body portion 23ra opposite to the surface where the light emitting portion 23rc and the light receiving portion 23rb are arranged, and the sensor portion 23r is held by the holding portion 23g. It is for fixing to.

The four pressing members 23n are formed into a substantially pentagonal plate material using a synthetic resin material, and have a shape that can be fitted into the holding portion 23g. The pressing member 23n is configured to hold the roller 23m, the drive gear 23j, and the second gear 23k on the holding portion 23g and then press them so as not to be detached from the holding portion 23g.
The two rollers 23m are the same as those described with reference to FIG. Moreover, the rotation detection means of this invention which detects rotation of the deodorizing filter 23a is comprised by the light-shielding part 23kb and sensor part 23r of the 2nd gearwheel 23k mentioned above.

  The mounting of the heating unit 23f and the deodorizing filter 23a to the holding unit 23g using the members described above is performed as follows. First, the hole 23ma of the roller 23m is fitted to each of the two first shafts 23ga of the holding portion 23g, and the two rollers 23m are attached to the holding portion 23g. Next, the sensor portion 23r and the second gear 23k are mounted in this order on the second shaft 23gb of the holding portion 23g. More specifically, the sensor unit 23r is inserted into the notch 23gbc provided in the second shaft 23gb. At this time, the light emitting unit 23rc of the sensor unit 23r is arranged inside the second shaft 23gb. In addition, as shown in FIG. 9, the light receiving portion 23rb of the sensor portion 23r is inserted so as to be disposed outside the second shaft 23gb. Then, after the sensor portion 23r is inserted into the second shaft 23gb, the second shaft 23gb is inserted into the light shielding portion 23kb of the second gear 23k, and the second gear 23k is assembled to the second shaft 23gb. Therefore, the second gear 23k is rotatably supported by the second shaft 23gb, and as shown in FIG. 8C, the light shielding portion 23kb of the second gear 23k is connected to the light emitting portion 23rc of the sensor portion 23r. The light-shielding part 23kb is arranged between the light-receiving part 23rb and the light-shielding part 23kb crosses between the light-emitting part 23rc and the light-receiving part 23rb in conjunction with the rotation of the second gear 23k. Next, the drive gear 23j is attached to the output shaft of the drive unit 23h, and the drive unit 23h is fixed to the drive unit fixing unit 23gc of the holding unit 23g.

  Next, the heating part 23f and the deodorizing filter 23a are attached to the holding part 23g. Specifically, the heating unit 23f is inserted and fixed to the heating unit fixing unit 23ge of the holding unit 23g, and the first gear 23ac is fitted between the upper flange 23mc and the lower flange 23md of the two rollers 23m. Similarly, the deodorizing filter 23a is mounted so that the drive gear 23j and the second gear 23k mesh with the first gear 23ac of the deodorizing filter 23a. Thereby, by rotating the drive gear 23 by the drive unit 23h, the deodorizing filter 23a guided by the second gear 23k and the two rollers 23m rotates stably, and the second gear 23k becomes the deodorizing filter 23a. It rotates in conjunction.

  Finally, the four pressing members 23n are fitted over the two rollers 23m, the driving gear 23j, and the second gear 23k, respectively, and the assembly of the deodorizing unit 23 is completed. The assembled deodorizing unit 23 is arranged in the ventilation path 10 of the air purifier 1 by fixing the holding portion 23g to the back side of the dust collecting unit 22 in the partition plate 16 as described above.

  Next, the rotation detection of the deodorizing filter 23a by the rotation detecting means in the deodorizing unit 23 assembled as described above will be described. As described above, when the sensor portion 23r and the second gear 23k are attached to the second shaft 23gb of the holding portion 23g in this order, the light shielding portion 23kb of the second gear 23k covers the light emitting portion 23rc of the sensor portion 23r, and the light shielding portion 23kb. Is arranged so as to cross between the light emitting part 23rc and the light receiving part 23rb.

  For this reason, when the light shielding part 23kb of the second gear 23k rotates in conjunction with the rotation of the deodorizing filter 23a, the slit 23kc provided in the light shielding part 23kb is located between the light emitting part 23rc and the light receiving part 23rb. is there. Only when the slit 23kc is positioned between the light emitting unit 23rc and the light receiving unit 23rb, the light emitted from the light emitting unit 23rc is received by the light receiving unit 23rb through the slit 23kc. In other cases, the light emitting unit The light emitted from 23rc is blocked by the light shielding portion 23kb and is not received by the light receiving portion 23rb. That is, as time passes, the slit 23kc is positioned between the light emitting unit 23rc and the light receiving unit 23rb, and the light emitted from the light emitting unit 23rc is received by the light receiving unit 23rb, and the light emitting unit 23rc and the light receiving unit. By detecting that the light-receiving unit 23rb may not receive the light emitted from the light-emitting unit 23rc due to the light-shielding unit 23kb being positioned between the light-receiving unit 23rb and the light-receiving unit 23rb. It can be detected that the second gear 23k is rotating.

  FIG. 9 is a main part perspective view showing a state in which the sensor part 23r and the second gear 23k are assembled to the deodorizing filter 23a and the holding part 23g. As shown in FIG. 9, when the sensor part 23r and the second gear 23k are assembled to the deodorizing filter 23a and the holding part 23g, the tooth part 23ka of the second gear 23k and the first gear 23ac of the deodorizing filter 23a mesh with each other. ing. Accordingly, when the deodorizing filter 23a is rotated by driving the driving unit 23h, the second gear 23k is also rotated in conjunction with the rotation. Therefore, the rotation of the second gear 23k is detected by the sensor unit 23r, thereby detecting the rotation of the deodorizing filter 23a. be able to.

  As described above, since the rotation of the deodorizing filter 23a is detected using the second gear 23k and the sensor unit 23r, the rotation of the deodorizing filter 23a can be detected with a simple configuration. Further, since the tooth portion 23ka of the second gear 23k and the first gear 23ac of the deodorizing filter 23a are meshed with each other, when the deodorizing filter 23a is rotated, the second gear 23k is also reliably rotated. Therefore, the rotation of the deodorizing filter 23a can be reliably detected. Furthermore, if the gear ratio of the tooth portion 23ka of the second gear 23k and the first gear 23ac of the deodorizing filter 23a is appropriately adjusted, the deodorizing filter 23a is rotated by a predetermined angle (for example, 30 degrees in 2 hours) for a fixed time. And the like can be accurately performed.

  In the present embodiment, the light shielding portion 23kb constituting the rotation detecting means is provided in the second gear 23k. However, the present invention is not limited to this, and the light shielding portions include the light emitting portion 23rc and the light receiving portion 23rb. What is necessary is just to generate | occur | produce the presence or absence of light reception in light-receiving part 23rb in response to rotation of the deodorizing filter 23a. For example, the sensor unit 23r is arranged in parallel with the rotation axis of the deodorizing filter 23a so that the tooth portion 23ka of the second gear 23k is arranged between the light emitting unit 23rc and the light receiving unit 23rb, and interlocked with the deodorizing filter 23a. Then, when the second gear 23k rotates, the light emitted from the light emitting portion 23rc may be intermittently shielded by the tooth portion 23ka. In this case, the tooth portion 23ka serves as a light-shielding portion, and the space between the tooth portion 23ka and the tooth portion 23ka serves as a location through which light passes. Further, the sensor unit 23r is disposed in parallel with the rotation axis of the deodorizing filter 23a so that the first gear 23ac of the deodorizing filter 23a is disposed between the light emitting unit 23rc and the light receiving unit 23rb, and the deodorizing filter 23a that rotates. The light emitted from the light emitting unit 23rc may be intermittently shielded by the tooth portion. In this case, the tooth part of the deodorizing filter 23a becomes a light-shielding part, and the space between the tooth part and the tooth part becomes a part through which light passes. Further, the light shielding portion is a plate-like member that is moved in and out by a piston motion in a space between the light receiving portion 23rb and the light emitting portion 23rc in conjunction with the rotation of the deodorizing filter 23a, and light emitted from the light emitting portion 23rc. May be intermittently shielded from light.

  The deodorizing unit 23 assembled as described above is arranged in the ventilation path 10, and when the air flowing into the ventilation path 10 from each air suction port passes through the deodorization filter 23a, the deodorization unit provided in the central part of the holding part 23g. Air that is about to flow to locations other than the opening 23gd corresponding to the shape of the filter 23a is blocked by the holding portion 23g and is on the ventilation surface of the deodorizing filter 23a (the portion not covered by the heating portion 23f of the deodorizing filter 23a). Led. Further, as shown in FIGS. 5 and 6, the center hole 23ad of the deodorizing filter 23a is also covered with the front side cover part 23s of the front side case 23ea and the rear side cover part 23v of the rear side case 23eb. The air flowing through the central hole 23ad of the 23a is blocked and guided to the ventilation surface of the deodorizing filter 23a. That is, in the deodorizing unit 23 having the above-described configuration, the air that flows into the ventilation path 10 and passes through the deodorizing unit 23 is efficiently guided to the deodorizing filter 23a, so that the air can be deodorized more effectively.

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

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

  As described above, when air passes through the ventilation path 10 inside the air purifier 1, dust and pollen are removed by the pre-filter 21 and the energized dust collection unit 22. And when air passes through the ventilation surface (surface exposed to the ventilation path 10 from the heating part 23f of the deodorizing unit 23) of the deodorizing filter 23a through the opening 23gd of the holding part 23g, the odor component is removed. When the air passes through the humidifying unit 24, it is humidified. As described above, since the dust collection unit 22 is disposed on the air inlet side of the deodorizing unit 23, the air flowing into the deodorizing unit 23 is free from dust, pollen, dust, pollen, etc. Therefore, the deodorizing filter 23a of the deodorizing unit 23 is not clogged.

  When the air purifier 1 is in operation, the PTC heater 23b is continuously energized, and the drive unit 23h is driven to operate the deodorizing filter 23a for a predetermined time (to regenerate the deodorizing ability of the deodorizing filter 23a). The deodorizing ability of the portion covered with the heating unit 23f in the deodorizing filter 23a is regenerated by rotating it at a predetermined angle (for example, 30 degrees) every necessary time, for example, 2 hours. That is, during the operation of the air purifier 1, air is deodorized at other locations while regenerating the deodorizing ability of the place covered with the heating unit 23 f of the deodorizing filter 23 a.

  As described above, the PTC heater 23b is attached to the front side heat radiating plate 23ca, but the first joint surface 23cda of the first joint portion 23cd of the rear side heat radiating plate 23cb and the second joint surface 23cea of the second joint portion 23ce. Is in contact with the filter-facing surface 23caa of the front side heat radiating plate 23ca, the heat generated by the PTC heater 23b is transmitted from both ends of the front side heat radiating plate 23ca to the back side through the first joint portion 23cd and the second joint portion 23ce. Conducts efficiently to the heat sink 23cb. Thereby, in the heating part 23f, both the front side and the back side of the deodorizing filter 23a can be heated by the PTC heater 23b as a heating element to regenerate the deodorizing ability of both sides of the deodorizing filter 23a.

  In addition, since the heat insulating material 23d is disposed between the front-side heat radiating plate 23ca and the front-side case 23ea and between the back-side heat radiating plate 23cb and the back-side case 23eb, it is heated by the PTC heater 23b. Further, it is difficult for heat to escape from the front side heat radiating plate 23ca and the rear side heat radiating plate 23cb to the outside of the heating unit 23f, and heat generated by the PTC heater 23b can be efficiently added to the deodorizing filter 23a.

  Moreover, since the heating part 23f has a structure which covers only a part of the deodorizing filter 23a, the air resistance of the deodorizing filter 23a is small. Further, as described above, the dust collection unit 22 also has a low air resistance. As a result, when the static pressure is lower than that of the sirocco fan, that is, when the air resistance is the same, the air volume is smaller than that of the sirocco fan, but the turbo fan 25a is more efficient and lower in noise than the sirocco fan. Therefore, it is possible to realize the air cleaner 1 that suppresses noise while ensuring the necessary dust collection ability and deodorizing ability.

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

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

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

  As described above, the air cleaner of the present invention includes the rotation detection means for detecting the rotation of the deodorization filter in conjunction with the rotation of the deodorization filter, so that it is compared with the detection circuit for detecting the rotation using the motor current. It is possible to detect whether or not the deodorizing filter is rotating with a simple configuration.

  In the above-described embodiment, the case where the front side heat radiating plate 23ca and the rear side heat radiating plate 23cb are formed in a substantially triangular shape has been described. However, the present invention is not limited to this. Any shape that can cover a part of 23a may be used.

DESCRIPTION OF SYMBOLS 1 Air cleaner 10 Ventilation path 11 Main body part 12 Front panel 13 Front panel 14 Rear panel 15 Operation part 22 Dust collection unit 23 Deodorizing unit 23a Deodorizing filter 23aa Base material 23ab Catalyst layer 23ac 1st gearwheel 23ad Center hole 23ae Cover part 23b PTC heater 23c Heat sink 23ca Front side heat sink 23ca Filter facing surface 23cab Heater placement surface 23cb Back side heat sink 23cc Main body portion 23cca Filter facing surface 23ccb Heat insulation material placement surface 23cd First joint portion 23cda Second joint surface 23ce Second joint portion 23cea 2 joint surface 23e case 23ea front side case 23eb back side case 23ec heat sink housing part 23eca bottom surface 23ecb first side face 23ecc second side face 23ecd third side face 23ece fourth side face 23ed Heat sink housing portion 23eda Bottom surface 23edb First side surface 23edc Second side surface 23edd Third side surface 23ede Fourth side surface 23f Heating portion 23g Holding portion 23ga First shaft 23gb Second shaft 23gbc Notch portion 23gc Drive portion fixing portion 23gd Opening portion 23gd Heating portion fixing portion 23h Driving portion 23j Driving gear 23k Second gear 23ka Tooth portion 23kb Light shielding portion 23kc Slit 23m Roller 23ma Hole 23mb Tube portion 23mc Upper flange 23md Lower flange 23n Holding member 23p Heater case 23q Third shaft 23r Sensor portion Part 23rc light emitting part 23s front side cover part 23t front side first flange 23u front side second flange 23v back side cover part 24 humidification unit 25 blower

Claims (3)

An air suction port that takes air into the housing, an air outlet that discharges air from inside the housing to the outside, and a ventilation path that communicates the air suction port and the air outlet,
An air cleaner in which a blower and a deodorizing unit for deodorizing air taken into the ventilation passage by driving the blower are disposed in the ventilation passage,
The deodorizing unit includes a deodorizing filter having a catalyst layer that adsorbs and decomposes an odor component contained in air, a heating unit that heats a part of the deodorizing filter, a driving unit that rotates the deodorizing filter, in conjunction with the rotation of the deodorizing filter have a rotation detecting means for detecting the rotation of the deodorizing filter,
The rotation detection unit includes a sensor unit including a light emitting unit and a light receiving unit, and a light shielding unit that blocks light emitted from the light emitting unit between the light emitting unit and the light receiving unit,
A first gear is provided on the outer periphery of the deodorizing filter,
A second gear having a tooth portion meshing with the first gear and rotating in conjunction with rotation of the deodorizing filter is provided;
The light-shielding part rotates in conjunction with the rotation of the second gear by being fixed to the second gear,
The rotation detection means detects the rotation of the deodorizing filter by detecting whether the sensor unit receives light at the light receiving unit,
An air purifier characterized by that. The light blocking portion is formed in a cylindrical shape Rutotomoni, provided in the tooth portion coaxially of said second gear,
A slit is formed by cutting out a part of the light shielding part, the light emitting part or the light receiving part is arranged inside the light shielding part, and the light receiving part or the light emitting part is arranged outside the light shielding part. The
The air cleaner according to claim 1 . A dust collection filter for removing dust contained in the air flowing through the ventilation path on the air inlet side of the deodorizing unit in the ventilation path;
The rotation detection means is disposed closer to the air outlet than the dust collection filter.
Air purifier according to any one of claims 1 or claim 2, characterized in that.

Images