CN111033131B

CN111033131B - Air supply device

Info

Publication number: CN111033131B
Application number: CN201880053520.5A
Authority: CN
Inventors: 花井孝广; 佐野弘明; 铃木康昌; 田中宏明; 滨野拓巳
Original assignee: Sharp Corp
Current assignee: Sharp Corp
Priority date: 2017-08-22
Filing date: 2018-01-26
Publication date: 2021-10-12
Anticipated expiration: 2038-01-26
Also published as: CN111033131A; JPWO2019038949A1; WO2019038949A1; JP7001695B2; TWI670420B; TW201912947A

Abstract

And a fan case (54) for accommodating the fan. The front panel and a part of a casing of the device constitute a part of a wall surface of an upstream air passage through which air blown by the fan flows. A wall member and a support member extending toward the front panel are mounted on the fan housing (54). The wall member forms another part of the wall surface of the upstream air passage. And a support member disposed outside the air blowing path. The side sound absorbing material (72) is sandwiched and supported by the front panel and the support member.

Description

Air supply device

Technical Field

The present invention relates to an air blowing device. The present application is the priority claim of japanese patent application No. 2017, 8/22, namely japanese application No. 2017-159373. The entire contents of the disclosure in this japanese patent application are incorporated herein by reference.

Background

As for a conventional blower device, japanese patent laying-open No. 8-261498 (patent document 1) discloses a configuration in which a sound absorbing material is attached to an outer surface of a fan case formed of a plate material having numerous small holes, thereby reducing noise of the blower.

Documents of the prior art

Patent document

Patent document 1: japanese patent laid-open No. 8-261498.

Disclosure of Invention

Technical problem to be solved by the invention

In the blower device described in the above document, an air suction port for sucking air is formed in a suction panel disposed in front of the blower. Since the front of the blower is open, noise caused by the blower is easily transmitted to the outside of the blower. Therefore, the air blower described in the above document is not necessarily sufficient in noise reduction, and there is room for further improvement.

Means for solving the problems

The present disclosure provides an air blowing device capable of reducing noise.

According to the present disclosure, there is provided an air blowing device including a fan, a fan case, a profile member, a wall member, a support member, and a sound absorbing material. And a fan for blowing air. And a fan housing accommodating the fan. The outer frame member constitutes a part of an outer case of the device and a part of a wall surface of an air blowing path for air blown by the fan. The wall member and the support member are mounted on the fan housing and extend toward the outline member. The wall member forms another part of the wall surface of the air blowing path. And a support member disposed outside the air blowing path. The sound absorbing material is sandwiched and supported by the outer member and the support member.

In the above air blower, the sound absorbing material is sandwiched and supported by the outer member and the wall member.

The blower device includes a motor for rotationally driving the fan. An outlet for the gas is formed at the upper part of the air blowing device. The sound absorbing material has a portion disposed above the motor.

The air blower described above includes: a tray which is disposed below the sound absorbing material and stores water; and a circuit component disposed above the sound absorbing material.

In the blower device, the fan housing has an opposing surface that faces the outer shell member. An air inlet to the fan is formed in the opposing surface. The air supply device comprises a plurality of ribs. The plurality of ribs are arranged at intervals along the peripheral edge of the air inlet on the upstream side of the air inlet in the flowing direction of the air towards the air inlet between the facing surface and the outline component.

In the blower device described above, the plurality of ribs are attached to the fan casing and extend toward the outer shell member.

In the air blowing device, the plurality of ribs have a thickness that decreases toward the upstream end in the flow direction of the gas and a thickness that decreases toward the downstream end in the flow direction of the gas.

In the air blowing device, the plurality of ribs includes a plurality of first ribs included in the first rib group and a plurality of second ribs included in the second rib group. The second rib group is arranged in the vicinity of the air inlet relative to the first rib group. The plurality of first ribs are arranged along the periphery of the air inlet at intervals. And a plurality of second ribs arranged along the periphery of the air inlet at intervals. And a second rib disposed between two adjacent first ribs.

In the air blowing device, a side surface of the first rib at a downstream end in the flow direction of the gas and a side surface of the second rib at an upstream end in the flow direction of the gas are opposed to each other.

In the air blowing device, the side surface of the downstream end in the flow direction of the first rib is inclined at an angle of 30 ° or less with respect to the extending direction of the first rib, and the side surface of the upstream end in the flow direction of the second rib is inclined at an angle of 30 ° or less with respect to the extending direction of the second rib.

In the air blowing device, the plurality of first ribs included in the first rib group are arranged so that the extending directions thereof are parallel to each other.

In the air blowing device, the second rib group includes second ribs inclined at an angle smaller than an angle at which the first ribs are inclined with respect to the radial direction of the rotating fan.

Effects of the invention

According to the air supply device disclosed by the invention, the noise can be reduced.

Drawings

Fig. 1 is a front view showing a humidified air cleaner according to a first embodiment.

Fig. 2 is a left side view of the humidified air cleaner shown in fig. 1.

Fig. 3 is a rear view of the humidified air cleaner shown in fig. 1.

Fig. 4 is a plan view of the humidified air cleaner shown in fig. 1.

Fig. 5 is a vertical cross-sectional view showing an internal structure of the humidified air cleaner shown in fig. 1.

Fig. 6 is a perspective view showing an internal structure of the humidified air cleaner shown in fig. 1.

Fig. 7 is a perspective view of the front panel.

Fig. 8 is a view showing the arrangement of the sound absorbing material with respect to the front panel.

Fig. 9 is a view showing the arrangement of the sound absorbing material with respect to the fan casing.

Fig. 10 is a front view showing the details of the structure of the fan casing.

Fig. 11 is an enlarged view of the region XI shown in fig. 10.

Fig. 12 is a diagram showing the arrangement of the sound absorbing material with respect to the front panel according to the second embodiment.

Fig. 13 is a diagram showing the arrangement of the sound absorbing material with respect to the fan casing according to the second embodiment.

Fig. 14 is a perspective view showing a vertical rib according to a third embodiment.

Fig. 15 is a perspective view showing the structure of the high voltage generating unit.

Fig. 16 is a schematic view showing the flow of air in the downstream air passage.

Fig. 17 is a perspective view showing a structure in the downstream air passage according to the fourth embodiment.

Fig. 18 is a perspective view showing a structure in the downstream air passage according to the fourth embodiment.

Fig. 19 is a perspective view showing the details of the structure of the baffle (vane).

Fig. 20 is a side view of the structure in the downstream air passage according to the fifth embodiment.

Detailed Description

The embodiments will be described below with reference to the drawings. The same components and corresponding components are denoted by the same reference numerals, and repetitive description thereof may not be repeated.

In the embodiment, the humidified air cleaner 1 will be described as an example of the air blowing device. The blower is not limited to the humidified air cleaner 1, and may be, for example, an air cleaner, an ion generator, an air conditioner, a ventilator, a dryer, a dehumidifier, a fan heater, or another device having no humidification function. The blower device can be suitably used for air conditioning of rooms in a house, one room in a building, a ward in a hospital, or the like. The air blowing device is used by being placed on the floor at a proper position in the room.

(embodiment I)

Fig. 1 is a front view showing a humidified air cleaner 1 according to a first embodiment. Fig. 2 is a left side view of the humidified air cleaner 1 shown in fig. 1. Fig. 3 is a rear view of the humidified air cleaner 1 shown in fig. 1. Fig. 4 is a plan view of the humidified air cleaner 1 shown in fig. 1. First, the overall configuration of the humidified air cleaner 1 according to the first embodiment will be described.

As shown in FIGS. 1 to 4, a humidified air cleaner 1 includes a case 2 serving as a housing of the apparatus. The case 2 has a front face 2A, a back face 2B opposite to the front face 2A, a right side face 2C connecting the front face 2A and the back face 2B, and a left side face 2D connecting the front face 2A and the back face 2B and opposite to the right side face 2C. The case 2 has an upper face 2E. The case 2 has a substantially rectangular parallelepiped shape as a whole, and has a rectangular parallelepiped shape as if it were vertically erected.

A front blowout port 3 is formed in an upper portion of the front surface 2A of the casing 2. In the above 2E, the after-blow port 4 is formed. The front outlet 3 and the rear outlet 4 are openings through which air is blown out from the humidified air cleaner 1. An outlet for air blown out from the humidified air cleaner 1 is formed in the upper part of the humidified air cleaner 1.

A front louver 7 is disposed in the front air outlet 3. The front louver 7 is provided to be movable manually or automatically. The front louver 7 is provided so that the flow direction of the air blown out from the front air outlet 3 can be changed (adjusted) by changing the position thereof.

A rear louver 8 is disposed at the rear outlet 4. The rear louver 8 is arranged to be movable manually or automatically. The rear louver 8 may be disposed at a position where the rear blowout port 4 is closed. The rear louver 8 may be stopped in a state of being opened at an arbitrary angle from the position where the rear blowout port 4 is closed. The rear louver 8 is provided to open and close the rear blowout port 4, and can change (adjust) the flow direction of the air blown out from the rear blowout port 4. During the stop of the humidified air cleaner 1, the rear louver 8 can be moved so as to close the rear blowout port 4 that opens upward, thereby suppressing the intrusion of dust and foreign matter from the rear blowout port 4 into the interior of the case 2.

An operation unit 5 is provided on the upper surface 2E of the case 2. The operation unit 5 has a plurality of operation buttons. The user of the humidified air cleaner 1 can perform operations such as operation, stop, and air volume switching of the humidified air cleaner 1 by appropriately pressing the operation button of the operation unit 5. The operation unit 5 further includes a notification unit for notifying a user of the operation state of the humidified air cleaner 1. The notification unit includes, for example, a plurality of indicator lamps, and can visually notify the user of the operating state of the humidified air cleaner 1 by turning on and off the indicator lamps.

The front face 2A of the case 2 is constituted by a front panel 10. The front panel 10 constitutes a part of the outer casing of the humidified air cleaner 1. The details of the structure of the front panel 10 will be described later.

An opening is formed in the rear surface 2B of the case 2, and the rear panel 20 is attached so as to close the opening. A plurality of air vents 21 are formed in the rear panel 20. The vent 21 is formed to penetrate through the substantially flat rear panel 20 in the thickness direction. The air vent 21 is a small hole for introducing external air into the interior of the housing 2 of the humidified air cleaner 1. A recess 22 is formed in the rear panel 20. The user of the humidified air cleaner 1 can take out the rear panel 20 from the rear surface 2B of the case 2 by inserting a finger into the recess 22 and pulling the rear panel 20 rearward.

A recess 24 is formed in the right side surface 2C of the case 2. A recess 25 is formed in the left side surface 2D of the case 2. The user of the humidified air cleaner 1 can insert a finger of one hand into the recess 24 and insert a finger of the other hand into the recess 25 to lift the case 2. This allows the humidified air cleaner 1 to be moved to a position away from the floor, and the humidified air cleaner 1 can be easily moved to an appropriate indoor position.

A lid 26 is provided on the left side surface 2D of the case 2. The lid 26 is formed to be removable from the left side surface 2D. In the state where the cover 26 is removed, the high-pressure generating unit 100 described later can be removed from the humidified air cleaner 1 or attached to the humidified air cleaner 1. A water storage tray 30 is disposed below the humidified air cleaner 1. The water storage tray 30 is configured to be removable in the left direction from the left side surface 2D.

Fig. 5 is a vertical cross-sectional view showing an internal structure of the humidified air cleaner 1 shown in fig. 1. Fig. 5 is a cross section of the humidified air cleaner 1 viewed from the side (left).

As shown in fig. 5, a filter 41 is disposed in front of the rear panel 20. The filter 41 is a dust collection/deodorization integrated filter that traps fine dust and adsorbs smelly components in the air. Instead of the integral filter 41, the dust collection filter and the deodorization filter may be separately configured and arranged to overlap each other.

The filter 41 is housed inside the case 2 and is covered at the rear by the rear panel 20. By taking out the rear panel 20, the filter 41 can be easily moved in and out. This facilitates maintenance work such as cleaning and replacement of the filter 41.

A hollow down air passage 150 is formed in front of the filter 41, that is, in the case 2 closer to the filter 41.

A water storage tray 30 has a tray body 31. The tray body 31 has a container-like shape, and stores water therein. A humidification filter 32, an antibacterial agent 33, and a float 34 are disposed inside the tray body 31.

The humidifying filter 32 has water absorbability and air permeability. The lower part of the humidifying filter 32 is immersed in the water stored in the tray body 31. The humidifying filter 32 is disposed in the air with its upper portion protruding upward from the water surface. The humidifying filter 32 has a submerged portion in which water is immersed in the tray body 31 at a lower portion thereof, and a non-submerged portion in which water is not immersed at an upper portion thereof.

The humidifying filter 32 sucks up the water in the tray body 31 by capillary action, and the whole state becomes a state containing water. The non-submerged part of the upper part of the humidifying filter 32 is not immersed in water, and water is sucked up from the submerged part of the lower part, so that water is distributed over the entire humidifying filter 32 including the non-submerged part regardless of the amount of water stored in the tray body 31.

The antibacterial agent 33 is immersed in the water that has been stored in the tray body 31. The antibacterial agent 33 contains an antibacterial component. The antibacterial component is dissolved in the water stored in the tray body 31, thereby exhibiting an antibacterial function of suppressing the generation of bacteria and mold in the water in the tray body 31 and the humidifying filter 32.

The float 34 floats in accordance with the fluctuation of the water level in the tray body 31. The float 34 constitutes a water level sensor that detects the water level in the tray body 31. The float 34 is provided with a magnet, for example. The operation of the humidified air cleaner 1 is controlled based on the water level in the tray body 31 detected by the water level sensor.

A blower 50 is disposed in the casing 2. The water storage tray 30 is disposed below the blower 50. The blower 50 is separated from the filter 41 and is disposed in front of the filter 41. The downdraft passage 150 is formed between the blower 50 and the filter 41 in the front-rear direction.

The blower 50 includes a fan 52 for blowing gas, a fan motor 53 as an electric motor for rotationally driving the fan 52, and a fan case 54 for housing the fan 52 and the fan motor 53. The fan housing 54 has an opposing surface 56 opposing the front panel 10. The facing surface 56 is disposed apart from the front panel 10.

A hollow upstream air passage 160, which is a passage through which air flowing toward the fan 52 flows, is formed between the front panel 10 and the facing surface 56 of the fan casing 54. The upstream air passage 160 forms a part of a passage on the upstream side of the fan 52 in the passage through which the air blown by the fan 52 flows. The front panel 10 forms a part of the wall surface of the upstream air passage 160, which is a blowing passage of air blown by the fan 52.

A plurality of ribs 80 are attached to the facing surface 56 of the fan housing 54. The rib 80 is disposed between the facing surface 56 of the fan casing 54 and the front panel 10. The rib 80 extends forward from the facing surface 56 of the fan housing 54 toward the front panel 10.

A passage through which air flows from fan 52, that is, downstream air passage 170, is formed above fan 52. The downstream air passage 170 forms a part of a passage on the downstream side of the fan 52 in a passage through which the air blown by the fan 52 flows. In the branching portion 180, the passage of the air is branched into two passages of a front air passage 183 connected to the front blowout port 3 and a rear air passage 184 connected to the rear blowout port 4. The front blowout port 3 is provided at the upper end of the front air passage 183. The rear blow-out port 4 is provided at the upper end of the rear air passage 184. The front outlet 3 and the rear outlet 4 are provided at the downstream end of the air flow blown by the fan 52.

The high-pressure generating unit 100 is disposed in the downstream air passage 170. The high pressure generating unit 100 protrudes into the downstream air passage 170 from the wall surface of the downstream air passage 170. The high voltage generating unit 100 generates active species such as ions by discharge. As a result, the air flowing through the high pressure generating unit 100 contains active species.

The air having passed through the filter 41 and flowed into the interior of the housing 2 is blown toward the water storage tray 30 provided below the humidified air cleaner 1 via the downdraft passage 150. The air is humidified by passing the air through the humidifying filter 32 which has absorbed the water. Thereafter, the humidified air is blown to the blower 50. The air is circulated by the rotation of the fan 52. In the downstream air passage 170, active species are contained in the air. The humidified air containing the active species is discharged to the outside (into the room) from the front blowout port 3 and the rear blowout port 4.

Fig. 6 is a perspective view showing an internal structure of the humidified air cleaner 1 shown in fig. 1. The front panel 10 is not configured to be removable from the humidified air cleaner 1, and it is not possible to actually remove only the front panel 10 from the humidified air cleaner 1 in an assembled state, and for convenience of explanation, fig. 6 illustrates a configuration in which the front panel 10 is not attached to the humidified air cleaner 1 obliquely viewed from the left front.

A float position detection substrate 91 is disposed in the center in the left-right direction in front of the water storage tray 30. The float position detecting substrate 91 constitutes a circuit substrate disposed at a position adjacent to the water storage tray 30 in the front-rear direction. The float position detection substrate 91 is configured to have a hall IC, for example. The float position detecting substrate 91 detects the height position of the float 34 in the tray body 31, thereby detecting the water level in the tray body 31. The float position detecting substrate 91 constitutes a water level sensor for detecting the water level in the tray body 31 together with the float 34.

A right rib 92 for reinforcement is disposed on the right side of the float position detecting substrate 91. The right rib 92 is disposed in front of the water storage tray 30, similarly to the float position detecting base plate 91. The float position detecting substrate 91 and the right rib 92 are arranged along the front edge portion of the tray body 31. The right rib 92 is inclined with respect to the up-down direction in such a manner that the position in the up-down direction becomes lower as going to the right, that is, as going away from the float position detecting substrate 91. The right rib 92 is inclined downward to the right.

A reinforcing left rib 93 is disposed on the left side of the float position detecting substrate 91. The left rib 93 is disposed in front of the water storage tray 30, similarly to the float position detecting base plate 91. The float position detecting substrate 91 and the left rib 93 are arranged along the front edge portion of the pallet body 31. The left rib 93 is inclined with respect to the up-down direction in such a manner that the position in the up-down direction becomes lower toward the left, that is, away from the float position detecting substrate 91. The left rib 93 is inclined downward to the left.

Vertical ribs 94 for supporting the right rib 92 and increasing the strength are disposed to extend in the vertical direction. Since the right rib 92 is inclined, the right rib 92 is not orthogonal to the longitudinal rib 94, forming an angle slightly deviating from a right angle. Vertical ribs 94 for supporting the left rib 93 and increasing the strength are disposed to extend in the vertical direction. Since the left rib 93 is inclined, the left rib 93 is not orthogonal to the longitudinal rib 94, and forms an angle slightly deviating from a right angle.

An air inlet 57 to the fan 52 is formed in the facing surface 56 of the fan housing 54. The air inlet 57 has a substantially circular shape when viewed from the front. The plurality of ribs 80 attached to the facing surface 56 of the fan housing 54 are arranged at intervals along the peripheral edge of the air inlet 57. The plurality of ribs 80 are disposed upstream of the inlet 57 in the flow direction of the gas toward the inlet 57.

The plurality of ribs 80 have a first rib group 81 and a second rib group 86. The second rib group 86 is disposed in the vicinity of the inlet 57 with respect to the first rib group 81. The plurality of ribs (first ribs 82 described later) included in the first rib group 81 are arranged at intervals along the peripheral edge of the air inlet 57. The plurality of ribs (second ribs 87 described later) included in the second rib group 86 are arranged at intervals along the peripheral edge of the air inlet 57. In the flow direction of the air toward the air inlet 57, the first rib group 81 is disposed on the upstream side, and the second rib group 86 is disposed on the downstream side.

The passage of the air flowing toward the air inlet 57 (the upstream air passage 160 shown in fig. 5) is defined by the front panel 10, the upper wall member 61, and the

side wall members

62 and 68. The upper wall member 61 and the

side wall members

62 and 68 constitute a part of the wall surface of the upstream air passage 160, which is a blowing passage of the air blown by the fan 52.

The upper wall member 61 is disposed above the air inlet 57. The

side wall members

62, 68 are disposed laterally with respect to the air inlet 57. The side wall member 62 is disposed on the left of the air inlet 57. The side wall member 68 is disposed rightward of the air inlet 57. By disposing the upper wall member 61 and the

side wall members

62 and 68 at positions distant from the air inlet 57, air is taken into the air inlet 57 from the entire periphery of the air inlet 57.

The upper wall member 61 and the

side wall members

62 and 68 are attached to the fan case 54. The upper wall member 61 and the

side wall members

62 and 68 extend forward relative to the facing surface 56 of the fan housing 54. The upper wall member 61 and the

side wall members

62 and 68 extend toward the front panel 10, which is not shown in fig. 6. An air passage defined by front panel 10, upper wall member 61, and

side wall members

62 and 68 is defined in front of fan 52, and air from water storage tray 30 located below is taken in through this air passage.

The fan case 54 is further provided with a support member 63 and a reinforcement 64. The support member 63 and the reinforcement portion 64 extend forward relative to the facing surface 56 of the fan casing 54. The support member 63 and the reinforcement portion 64 extend toward the front panel 10, which is not shown in fig. 6. The reinforcing portion 64 is disposed to intersect with the support member 63. The support member 63 and the reinforcement portion 64 form an integral structure, whereby the strength of the support member 63 is improved.

The support member 63 and the reinforcement portion 64 are disposed on the left side of the side wall member 62 constituting a part of the left wall surface of the upstream air passage 160. The support member 63 and the reinforcement 64 are disposed outside the upstream air passage 160. The support member 63 and the reinforcement 64 do not define a passage (an upstream air passage 160 shown in fig. 5) through which air flows toward the air inlet 57. The support member 63 and the reinforcement 64 are provided separately from the upper wall member 61 and the

side wall members

62 and 68, which are members defining the upstream air passage 160.

Above the fan 52, a power supply substrate 90 and an ion amount detection substrate 120 are disposed. The power supply substrate 90 and the ion amount detection substrate 120 are disposed above the upper wall member 61. The power supply substrate 90 and the ion amount detection substrate 120 constitute circuit components.

Fig. 7 is a perspective view of the front panel 10. As shown in fig. 7, a notch 13 is formed in a portion of the front panel 10 constituting the front surface 2A in a state where the humidified air cleaner 1 is attached. A notch 14 is formed in a portion of the front panel 10 that constitutes the right side surface 2C in a state in which the humidified air cleaner 1 is attached.

Notches

15 and 19 and an opening 16 are formed in a portion of the front panel 10 that constitutes the left side surface 2D in a state where the humidified air cleaner 1 is attached.

The notch 13 forms the front blowout port 3. The notches 14 are formed corresponding to the recesses 24. The notch 15 is formed corresponding to the recess 25. The opening 16 is formed corresponding to the lid 26. The notch 19 is formed in correspondence with the water storage tray 30.

Fig. 8 is a view showing the arrangement of the sound absorbing material 70 with respect to the front panel 10. Fig. 8 illustrates the front panel 10 as viewed from the rear. The sound absorbing material 70 is attached to the rear surface of the front panel 10. The sound absorbing material 70 includes an upper sound absorbing material 71 and a side sound absorbing material 72.

Fig. 9 is a diagram showing the arrangement of the sound absorbing material 70 with respect to the fan casing 54. Fig. 9 shows a configuration in which the front panel 10 is not attached to the humidified air cleaner 1 as viewed from the front for convenience of explanation. The upper sound absorbing material 71 is disposed above the fan motor 53. The power supply substrate 90 and the ion amount detection substrate 120 are disposed above the sound absorbing material 70. Referring also to fig. 6, the water storage tray 30 is disposed below the sound absorbing material 70.

As shown in fig. 6 and 9, the side sound absorbing material 72 is disposed along the support member 63. The front end of the support member 63 abuts against the side sound absorbing material 72. The side sound absorbing material 72 is sandwiched between the front panel 10 and the support member 63. The side sound absorbing material 72 is sandwiched between the front panel 10 and the support member 63 and is supported. The upper sound absorbing material 71 is disposed along the upper wall member 61. The front end of the upper wall member 61 abuts against the upper sound absorbing material 71. The upper sound absorbing material 71 is sandwiched between the front panel 10 and the upper wall member 61. The upper sound absorbing material 71 is sandwiched between the front panel 10 and the upper wall member 61 and is supported.

Fig. 10 is a front view showing the details of the structure of the fan casing 54. As shown in fig. 10, the plurality of ribs 80 include a plurality of first ribs 82 included in the first rib group 81 and a plurality of second ribs 87 included in the second rib group 86. The center C shown in fig. 10 indicates the rotation center of the rotating fan 52 and the fan motor 53. The rotation centers of the rotating fan 52 and the fan motor 53 extend in the vertical direction of the drawing sheet of fig. 10. The radial direction of the rotating body, that is, the fan 52 and the fan motor 53 is the extending direction of a straight line passing through the center C on the paper surface in fig. 10 illustrating a plane orthogonal to the rotation center.

All of the plurality of first ribs 82 extend in parallel in the vertical direction in the drawing. The first ribs 82 are arranged so that the extending directions thereof are parallel to each other.

In the row of the plurality of second ribs 87 arranged along the peripheral edge of the air inlet 57, the second rib 87 near the center extends in the vertical direction in the drawing, like the first rib 82. Of the rows of the plurality of second ribs 87 arranged along the peripheral edge of the air inlet 57, the second rib 87 located at the end extends obliquely with respect to the vertical direction in the drawing. The second ribs 87 at the end portions extend nonparallel to the first ribs 82, and the angle between the extending direction of the second ribs and the radial direction of the fan 52 is smaller than the angle between the extending direction of the first ribs 82 and the radial direction of the fan 52. The second rib 87 is inclined at a smaller angle with respect to the radial direction of the fan 52 than the first rib 82 is inclined at a smaller angle with respect to the radial direction of the fan 52, as compared with the end portion of the rows of the plurality of first ribs 82 and second ribs 87 arranged along the peripheral edge of the air inlet 57.

Fig. 11 is an enlarged view of the region XI shown in fig. 10. As shown in fig. 11, the first ribs 82 are arranged at intervals along the peripheral edge of the air inlet 57. Between adjacent two first ribs 82, a gap 83 is formed. The second ribs 87 are arranged at intervals along the peripheral edge of the air inlet 57. Between adjacent two second ribs 87, a gap 88 is formed.

In the flow direction of the air toward the air inlet 57, the first rib 82 is disposed on the upstream side, and the second rib 87 is disposed on the downstream side. The second ribs 87 are disposed downstream of the gaps 83 between the first ribs 82. The first ribs 82 are disposed on the upstream side of the gaps 88 between the second ribs 87.

The second rib 87 is disposed between two adjacent first ribs 82 among the plurality of first ribs 82 arranged along the peripheral edge of the air inlet 57. The first rib 82 is disposed between two adjacent second ribs 87 of the plurality of second ribs 87 arranged along the peripheral edge of the air inlet 57. The first ribs 82 and the second ribs 87 are arranged alternately in the extending direction of the peripheral edge of the air inlet 57. The first rib 82 and the second rib 87 are arranged at positions shifted from each other in the extending direction of the peripheral edge of the air inlet 57.

The first rib 82 has an upstream end 82A and a downstream end 82B in the air flow direction toward the air inlet 57. The thickness of the first rib 82 becomes smaller as it approaches the upstream end 82A, and becomes smaller as it approaches the downstream end 82B. The first rib 82 has a wing shape disposed in the air flow toward the suction port 57.

The second rib 87 has an upstream end 87A and a downstream end 87B in the air flow direction toward the air inlet 57. The thickness of the second rib 87 decreases as it approaches the upstream end 87A and decreases as it approaches the downstream end 87B. The second rib 87 has a wing shape disposed in the air flow toward the air inlet 57.

The second rib 87 is disposed in the vicinity of the inlet 57 with respect to the first rib 82. In the radial direction of the rotating fan 52, the downstream end 82B of the first rib 82 and the upstream end 87A of the second rib 87 are arranged at substantially the same position. The distance between the downstream end 82B of the first rib 82 and the center C shown in fig. 10 and the distance between the upstream end 87A of the second rib 87 and the center C shown in fig. 10 are set to be substantially equal. The upstream end 87A of the second rib 87 may be disposed in the vicinity of the inlet 57 rather than the downstream end 82B of the first rib 82.

The first rib 82 has a shape protruding from the facing surface 56 of the fan housing 54, and has a side surface 84. The second rib 87 has a shape protruding from the facing surface 56 of the fan housing 54, and has a side surface 89. The side surfaces 84, 89 extend substantially perpendicular to the facing surface 56. The side surfaces 84 and 89 may extend obliquely to a plane perpendicular to the facing surface 56 so that the thickness of the base portion of the first rib 82 and the second rib 87 becomes smaller toward the tip end portion.

The side surface 84 of the downstream end 82B of the first rib 82 and the side surface 89 of the upstream end 87A of the second rib 87 face each other. The side surface 84 of the downstream end 82B of the first rib 82 and the side surface 89 of the upstream end 87A of the second rib 87 are arranged substantially in parallel. A straight line intersecting the facing surface 56 and a side surface 84 of the downstream end 82B of the first rib 82, and a straight line intersecting the facing surface 56 and a side surface 89 of the second rib 87 facing the side surface 84 extend in parallel.

As described above, the first rib 82 becomes thinner as it approaches the downstream end 82B. The side surface 84 of the downstream end 82B of the first rib 82 extends obliquely to the extending direction of the first rib 82. The side surface 84 of the downstream end 82B of the first rib 82 is inclined at an angle of 30 ° or less with respect to the extending direction of the first rib 82. The second rib 87 becomes smaller in thickness as it approaches the upstream end 87A. The side surface 89 of the upstream end 87A of the second rib 87 is inclined with respect to the extending direction of the second rib 87. The side surface 89 of the upstream end 87A of the second rib 87 is inclined at an angle of 30 ° or less with respect to the extending direction of the second rib 87.

(second embodiment)

Fig. 12 is a diagram showing the arrangement of the sound absorbing material 70 according to the second embodiment with respect to the front panel 10. Fig. 13 is a diagram showing the arrangement of the sound absorbing material 70 in the second embodiment with respect to the fan casing 54. The humidified air cleaner 1 according to the second embodiment includes the sound absorbing material 70 having a larger area than that of the first embodiment.

In the first embodiment shown in fig. 7 and 8, the sound absorbing material 70 is provided only above and to the side of the air inlet 57 of the fan casing 54, and the sound absorbing material 70 is not interposed between the fan motor 53 and the front panel 10. In contrast, in the second embodiment, the sound absorbing material 70 is disposed so as to cover the air inlet 57 of the fan casing 54, and the sound absorbing material 70 is interposed between the fan motor 53 and the front panel 10.

The sound absorbing material 70 shown in fig. 13, when viewed from the front, covers the support member 63 and also covers the upper wall member 61. In the second embodiment as well, the sound absorbing material 70 is sandwiched and supported by the front panel 10 and the support member 63, and is sandwiched and supported by the front panel 10 and the upper wall member 61. The sound absorbing material 70 is disposed above the fan motor 53 in the vicinity of the upper edge thereof. The water storage tray 30 is disposed below the sound absorbing material 70, and the power supply substrate 90 and the ion amount detection substrate 120 are disposed above the sound absorbing material 70.

(third embodiment)

Fig. 14 is a perspective view showing a vertical rib 94 according to a third embodiment. As shown in fig. 14, in the vertical rib 94 of the third embodiment, a notch 95 is formed above the right rib 92 at a portion intersecting the right rib 92. Of the intersections of the vertical ribs 94 and the right rib 92 provided for reinforcement, notches 95 are formed above the intersections of the ribs in the vertical direction.

Not shown, the vertical rib 94 intersecting the left rib 93 is similarly notched above the left rib 93 at the portion intersecting the left rib 93.

(fourth embodiment)

On the premise of the description of the humidified air cleaner 1 of the fourth embodiment, a description will be given of a configuration of the high-voltage generating unit 100 applied to the humidified air cleaner 1. Fig. 15 is a perspective view showing the structure of the high voltage generating unit 100.

The high voltage generating unit 100 includes a unit case 101 and

discharge portions

102 and 103. The

discharge portions

102 and 103 are provided to protrude from the substantially rectangular parallelepiped cell case 101. The

discharge portions

102 and 103 extend in a direction in which the

discharge portions

102 and 103 protrude from the unit case 101.

The

discharge portions

102 and 103 have a plurality of linear conductors and a base portion for bundling the conductors. The linear shape includes a filament shape, a fiber shape, and a metal wire shape. The conductor is formed of a conductive material. The conductor may be formed of, for example, metal, carbon fiber, conductive fiber, or conductive resin. The conductor has a base end portion on the side close to the unit case 101 and a tip end portion on the side far from the unit case 101. The distal ends of the plurality of conductors are formed in a brush shape. The

discharge portions

102 and 103 are brush-shaped electrodes whose longitudinal direction is the direction protruding from the unit case 101.

The

discharge portions

102 and 103 are discharged by applying a voltage, and active species such as ions, electrons, radicals, and ozone are generated. The discharge portion 102 is, for example, a discharge electrode for generating positive ions. The discharge portion 103 is, for example, a discharge electrode for generating negative ions. The discharge portion 102 discharges by being applied with a high voltage, and generates positive ions. The discharge portion 103 discharges by being applied with a high voltage, and generates negative ions.

The positive ion is multiple water molecules in hydrogen ion (H)⁺) Of the cluster ion aggregated around with H⁺(H₂O)_m(m is an arbitrary integer of 0 or more). The negative ion is oxygen ion (O) containing multiple water molecules₂ ^-) With O as a cluster ion₂ ^-(H₂O)_n(n is an integer of 0 or more). When positive ions and negative ions are released into the room, the both ions surround the mold or virus floating in the air and are on the surface thereofCausing a chemical reaction with each other. The action of the hydroxyl radical (. OH) of the active species generated at this time removes the floating mold and the like.

The high voltage generation unit 100 includes

electrode protection portions

104, 106 that protect the front ends of the

discharge portions

102, 103. The electrode guard 104 and the electrode guard 106 are disposed at a distance from each other. The

electrode protecting portions

104 and 106 are provided adjacent to the

discharge portions

102 and 103 in order to prevent an external object from directly contacting the

discharge portions

102 and 103. Between the electrode guard 104 and the electrode guard 106, the

discharge portions

102 and 103 are disposed. The electrode guard 104 and the electrode guard 106 sandwich the

discharge portions

102 and 103.

The

electrode protectors

104 and 106 are integrally formed with the unit case 101 and protrude from the unit case 101. The

electrode protectors

104 and 106 protrude from the unit case 101 to a larger extent than the

discharge portions

102 and 103.

The electrode guard 104 includes a beam portion 105A and pillars 105B to 105D. The support columns 105B to 105D protrude perpendicularly from the unit case 101. The extending direction of the support posts 105B to 105D is parallel to the extending direction of the

discharge portions

102 and 103. The beam portion 105A is coupled to the front ends of the support columns 105B to 105D. Pillar 105B is coupled to one end of beam 105A, pillar 105D is coupled to the other end of beam 105A, and pillar 105C is coupled to the center of beam 105A. The support 105B is disposed at a distance from the support 105C, and the support 105C is disposed at a distance from the support 105D.

Electrode guard 106 includes beam 107A and support posts 107B to 107D. The support columns 107B to 107D protrude perpendicularly from the unit case 101. The extending direction of the support posts 107B to 107D is parallel to the extending direction of the

discharge portions

102 and 103. Beam portion 107A is coupled to the front ends of pillars 107B to 107D. Pillar 107B is coupled to one end of beam portion 107A, pillar 107D is coupled to the other end of beam portion 107A, and pillar 107C is coupled to the central portion of beam portion 107A. The support 107B is disposed with a space from the support 107C, and the support 107C is disposed with a space from the support 107D.

The electrode guard 104 is disposed upstream of the

discharge portions

102 and 103 in the flow direction of the air passing through the high-voltage generating unit 100 in a state where the high-voltage generating unit 100 is disposed in the downstream air passage 170 (fig. 5) of the humidified air cleaner 1. The electrode protection part 106 is disposed downstream of the

discharge parts

102 and 103 in the air flow. The support columns 105B to 105D and 107B to 107D are arranged at positions not overlapping the

discharge sections

102 and 103 in the air flow direction. The

beam portions

105A and 107A extend in a direction orthogonal to the air flow direction.

The unit case 101 of the high voltage generating unit 100 is held by the holder 110. The unit case 101 may be mounted on the holder 110. The unit case 101 is configured to be freely attachable to and detachable from the holder 110.

The holder 110 is mounted on the holder receiving portion 130. The holder 110 is configured to be freely attachable to and detachable from the holder receiver 130. The holder receiving portion 130 is attached to the housing 2 (fig. 1 to 5) of the humidified air cleaner 1, and is housed inside the housing 2.

The ion amount detecting substrate 120 shown in fig. 6 and 9 is mounted on the holder receiving portion 130. The ion amount detection substrate 120 detects the magnetic field generated by the

discharge portions

102 and 103, thereby detecting the concentration of active species (ions) generated by the discharge. The ion amount detection substrate 120 is disposed in the vicinity of the

discharge portions

102 and 103 so that the concentration of active species (ions) can be accurately measured.

The holder receiving portion 130 has an insertion hole. The holder 110 is inserted into the holder receiving portion 130 through the insertion hole, and is thereby attached to the holder receiving portion 130. The insertion opening is covered with a lid 26 (fig. 2 and 6). In a state where the cover 26 is attached to the case 2, the holder receiver 130 and the holder 110 are covered by the cover 26 and are not exposed to the outside. The lid 26 is removed from the case 2, and the insertion hole of the holder receiving portion 130 is exposed to the outside, so that the holder 110 and the unit case 101 can be attached to the holder receiving portion 130 or removed from the holder receiving portion 130 through the insertion hole.

As shown in fig. 6 and 9, the direction in which the holder 110 and the unit case 101 are inserted into the holder receiving portion 130 does not coincide with the left-right direction of the humidified air cleaner 1. The holder 110 and the unit case 101 are inclined with respect to the left-right direction of the humidified air cleaner 1 in a direction in which the holder receiver 130 is inserted so as to face forward as the holder 110 and the unit case 101 are inserted into the holder receiver 130. Of the

discharge portions

102 and 103, the discharge portion 103 is inserted deeper into the case 2 from the insertion hole of the holder receiving portion 130.

Therefore, in a state where the holder 110 and the unit case 101 are housed in the case 2, the discharge portion 102 is disposed behind the discharge portion 103, and the discharge portion 103 is disposed in front of the discharge portion 102. Since the cover 26 is provided on the left side surface 2D of the case 2, the discharge portion 102 is disposed on the left side of the discharge portion 103 and the discharge portion 103 is disposed on the right side of the discharge portion 102 in a state where the holder 110 and the unit case 101 are housed in the case 2.

Fig. 16 is a schematic diagram showing the flow of air in the downstream air passage 170. Fig. 16 shows a part of the internal structure of the housing 2 of the humidified air cleaner 1 as seen from the rear. The right direction in the figure is the right direction of the humidified air cleaner 1, and the left direction in the figure is the left direction of the humidified air cleaner 1. Arrows in the drawing indicate the rotation directions of the fan 52 and the fan motor 53.

Fan housing 54 has duct wall surfaces 172 and 174 (see also fig. 10) defining downstream duct 170. The air passage wall surfaces 172 and 174 are inclined with respect to the vertical direction of the humidified air cleaner 1 so as to face upward and rightward. Since the fan 52 rotates clockwise in fig. 16, the air flowing into the downstream air passage 170 from the fan 52 flows more into the vicinity of the air passage wall surface 172, and the flow velocity of the air flowing through the vicinity of the air passage wall surface 172 increases. By disposing the air passage wall surface 172 obliquely with respect to the vertical direction, the imbalance between the flow rate and the flow velocity of the air in the left-right direction of the humidified air cleaner 1 in the downstream air passage 170 is reduced, and the flow rate of the air flowing through the

discharge portions

102, 103 is increased.

Of the

discharge portions

102 and 103, the discharge portion 102 is disposed further rearward, and the discharge portion 103 is disposed further forward. Therefore, positive ions generated in the discharge portion 102 flow rearward in the downstream air passage 170, and negative ions generated in the discharge portion 103 flow forward in the downstream air passage 170. The positive and negative ion concentrations in the downstream air passage 170 cause imbalance in the front-rear direction of the humidified air cleaner 1.

As a result, the air flowing into the front air passage 183 and flowing out of the apparatus from the front outlet 3 contains many negative ions, and the air flowing into the rear air passage 184 and flowing out of the apparatus from the rear outlet 4 contains many positive ions. As described above, in the humidified air cleaner 1, airborne mold, viruses, and the like in the air are removed by the chemical reaction of the positive ions and the negative ions. Therefore, if the concentration imbalance between positive ions and negative ions contained in the air is large, the air cleaning ability to remove planktonic mold, viruses, and the like cannot be sufficiently exhibited.

The humidified air cleaner 1 according to the fourth embodiment is to solve such a situation. Fig. 17 and 18 are perspective views showing the configuration of the downstream air passage 170 according to the fourth embodiment. Fig. 17 illustrates a part of the internal structure of the housing 2 of the humidified air cleaner 1 as viewed obliquely from the rear left, and fig. 18 illustrates a part of the internal structure of the housing 2 of the humidified air cleaner 1 as viewed obliquely from the front left. As shown in fig. 17 and 18, in the humidified air cleaner 1 of the fourth embodiment, a baffle (vane)200 is provided in the air blowing path closer to the front blowout port 3 and the rear blowout port 4 than the

discharge portions

102 and 103. The baffle 200 is disposed in the manifold 180.

Fig. 19 is a perspective view showing the details of the structure of the baffle 200. The baffle 200 extends in the left-right direction of the humidified air cleaner 1 and is fixed to the manifold 180. The baffle 200 has a left edge 201, a front edge 202, and a right edge 203. The length of the left edge 201 is not equal to the length of the right edge 203, and the left edge 201 is longer than the right edge 203. The baffle 200 has different heights on the left and right. The leading edge 202 is inclined with respect to the vertical direction. The left edge 201 protrudes from the branch portion 180 into the downstream air passage 17 to a greater height than the right edge 203.

As shown in fig. 17, the

discharge portions

102 and 103 are disposed in front of the baffle 200. The air containing many positive ions generated in the discharge portion 102 by passing through the vicinity of the discharge portion 102 flows toward the vicinity of the left edge portion 201 of the baffle 200. The air containing many negative ions generated in the discharge portion 103 by passing through the vicinity of the discharge portion 103 flows toward the vicinity of the right edge 203 of the baffle 200.

The air containing ions passing through the

discharge portions

102 and 103 provided on the front side of the inner wall surface of the downstream air passage 170 is prevented from flowing into the downstream air passage 184 by the baffle 200 protruding from the branch portion 180 into the downstream air passage 170. The baffle 200 has a portion near the left edge 201 projecting longer into the downstream air passage 170. Therefore, the air containing a large amount of positive ions generated in the discharge portion 102 is more strongly subjected to the rectifying action of the damper 200 to cause the air to flow into the front air passage 183. On the other hand, the rectifying action of the baffle 200 received by the air containing many negative ions generated in the discharge portion 103 is relatively small. As a result, the flow of positive ions into the forward air passage 183 and the flow of negative ions into the backward air passage 184 are promoted.

In this way, the damper 200 adjusts the flow rate of positive and negative ions flowing into the front air passage 183 and the rear air passage 184. The imbalance in the concentrations of positive ions and negative ions contained in the air flowing into the front air passage 183 and the imbalance in the concentrations of positive ions and negative ions contained in the air flowing into the rear air passage 184 are reduced. Since the concentrations of positive ions and negative ions contained in the air blown out from both the front outlet 3 and the rear outlet 4 can be made uniform, the removal capability of suspended mold, viruses, and the like by the humidified air cleaner 1 can be improved.

(fifth embodiment)

Fig. 20 is a side view of the structure in the downstream air passage 170 according to the fifth embodiment. The humidified air cleaner 1 of the fifth embodiment is different from the fourth embodiment in that the damper 200 has the rotation shaft 210. The fan 200 of the fifth embodiment is provided to be rotatable around a rotation shaft 210. The rotary shaft 210 is disposed at a branch portion 180 that branches from the downstream air passage 170 to the front air passage 183 and the rear air passage 184.

By rotating the flap 200 to change the angle, the flow rate of the air flowing into the front air passage 183 and the rear air passage 184 varies. By adjusting the angle of the damper 200, the flow rate of the air flowing into the front air passage 183 and the rear air passage 184 is adjusted. In the position indicated by the broken line in fig. 20, the flapper 200 is rotated counterclockwise in fig. 20 to move the flapper 200 rearward, and the flow rate of the air sent to the front blowout port 3 is increased. Alternatively, the baffle 200 is rotated clockwise in fig. 20 and moved forward, whereby the flow rate of the air sent to the rear blowout port 4 is increased. In this way, the baffle 200 can adjust the flow rate ratio of the air sent to the front outlet 3 and the rear outlet 4.

Next, the operational effects of the humidified air cleaner 1 of the embodiment will be described. In the humidified air cleaner 1, noise caused by the operation of the fan 52 and the fan motor 53 is easily transmitted in the forward direction of the blower 50. In the humidified air cleaner 1 of the embodiment, as shown in fig. 1 and 5, the front panel 10 constitutes a part of the housing 2, and also constitutes a part of a wall surface of the upstream air passage 160, which is a blowing passage of air blown by the fan 52, and functions as an outer member of the embodiment. The front wall surface of the upstream air passage 160 formed in front of the blower 50 is formed by the front panel 10, which is a part of the casing 2, and therefore noise is easily transmitted to the casing 2 (the front panel 10).

Therefore, in the humidified air cleaner 1 of the embodiment, as shown in fig. 6 and 9, the sound absorbing material 70 is sandwiched and supported by the front panel 10 and the support member 63. The sound generated by the fan 52 and transmitted to the front panel 10 is suppressed from propagating through the sound absorbing material 70. Vibration of the case 2 is also suppressed by the sound absorbing material 70. Therefore, according to the humidified air cleaner 1 of the embodiment, noise can be reduced and vibration of the housing 2 can be reduced.

As shown in fig. 6 and 9, the sound absorbing material 70 is supported by being sandwiched between the front panel 10 and the upper wall member 61. The sound absorbing material 70 is provided between the front panel 10 and the upper wall member 61 in addition to between the front panel 10 and the support member 63, whereby noise and vibration of the case 2 can be reduced more reliably.

As shown in fig. 5, in the humidified air cleaner 1 of the embodiment, a front outlet 3 and a rear outlet 4 through which air is blown out are formed in an upper portion of the housing 2. A downstream air passage 170 through which air flowing out from the blower 50 flows is provided above the blower 50. Noise is also likely to occur at the intersection of the air streams sent from the fan 52 at the inlet of the downstream air passage 170. Therefore, as shown in fig. 9, the sound absorbing material 70 is disposed above the fan motor 53. By disposing sound absorbing material 70 near the root of downstream air passage 170 where noise is generated, noise can be reduced more effectively.

As shown in fig. 5, the water storage tray 30 is disposed at the lower portion of the housing 2. The water is retained in the water holding tray 30. In the case where the humidified air cleaner 1 is turned over, the remaining water in the water storage tray 30 may flow upward of the housing 2. Therefore, in the humidified air cleaner 1 of the embodiment, as shown in fig. 9, the sound absorbing material 70 is disposed above the water storage tray 30 and below the power supply board 90. The sound absorbing material 70 can function as a water absorbing material, and water reaching the sound absorbing material 70 can be absorbed by the sound absorbing material 70. This can suppress water from entering the area above the sound absorbing material 70 due to the sound absorbing material 70, and therefore, the reliability of the power supply board 90 disposed above the sound absorbing material 70 can be improved.

As shown in fig. 6, no grid is provided in the inlet 57 in order to reduce the pressure loss by reducing the air flow resistance against the air flow flowing into the fan 52. By reducing the pressure loss, the efficiency of the fan motor 53 is improved, and the effects of noise reduction and power consumption reduction at the same air volume are obtained. Since the front panel 10 is configured to be not removable, access (access) to the air inlet 57 from the front cannot be performed even if no grid is provided.

On the other hand, the water storage tray 30 is configured to be removable. In a state where the water storage tray 30 is removed, the user of the humidified air cleaner 1 can insert his or her hand into the hollow space below the blower 50. In order to prevent the user of the humidified air cleaner 1 from touching the fan 52, it is necessary to restrict access to the air inlet 57 from below.

Therefore, as shown in fig. 6, the humidified air cleaner 1 of the embodiment includes a plurality of ribs 80 arranged along the periphery of the inlet 57 on the upstream side of the inlet 57, that is, below the inlet 57. By appropriately setting the interval between adjacent ribs 80 and the length of the ribs 80 in the air flow direction, it is possible to realize a configuration in which the user cannot insert a finger above the ribs. This prevents the user's fingers from reaching the fan 52.

In order to dispose the rib 80 below the air inlet 57, a rib may be provided on the rear surface of the front panel 10. However, the front panel 10 is a resin molded product constituting an outer case of the apparatus. When it is intended to form a rib on the back surface of the front panel 10, local depressions are likely to be generated on the front surface side of the positions corresponding to the ribs by shrinkage after molding, and the depressions are not preferable because they affect the appearance. In molding the front panel 10 so as not to generate the dent, the manufacturing process of the front panel 10 is increased, which leads to an increase in manufacturing cost. Alternatively, the ribs may be formed separately from the front panel 10 and the fan casing 54, and in this case, the number of parts increases, which leads to an increase in cost.

Therefore, in the humidified air cleaner 1 of the embodiment, as shown in fig. 6 and 10, the plurality of ribs 80 are attached to the fan casing 54 and extend toward the front panel 10. Since the fan case 54 is a member housed inside the case 2, the ribs do not affect the appearance of the humidified air cleaner 1. Since the rib does not need to be provided as a separate member, the manufacturing cost can be reduced.

As shown in fig. 10 and 11, the rib 80 has a smaller thickness as it approaches the upstream end in the air flow direction toward the air inlet 57, and has a smaller thickness as it approaches the downstream end in the air flow direction. By forming the ribs 80 into a wing-like shape as described above, the pressure loss of the flow of air passing between the ribs 80 can be reduced.

In the case where the ribs 80 are arranged in a row along the peripheral edge of the air inlet 57, the interval between the ribs 80 needs to be narrowed or the thickness of the ribs 80 needs to be increased in order to reliably prevent the intrusion of fingers. In this case, the effect of reducing the pressure loss becomes small. When resin molding is performed on the rib 80 having a large thickness, it is necessary to make the molding time long.

Therefore, in the humidified air cleaner 1 of the embodiment, as shown in fig. 10 and 11, the plurality of ribs 80 include the first rib group 81 and the second rib group 86 disposed in the vicinity of the inlet 57 with respect to the first rib group 81. The second ribs 87 included in the second rib group 86 are disposed between two adjacent first ribs 82 among the first ribs 82 included in the first rib group 81. Accordingly, the interval between the first ribs 82 can be increased to enlarge the cross-sectional area of the air flow path, and thus the pressure loss can be reduced. Even if a finger enters the gap 83 between two adjacent first ribs 82, the second ribs 87 prevent the finger from entering before the first joint of the finger enters, and therefore, even if the interval between the first ribs 82 is increased, the finger can be reliably prevented from entering.

The interval between the first ribs 82 in the direction along the peripheral edge of the air inlet 57 may be 10mm to 15 mm. If the interval between the first ribs 82 is less than 10mm, the pressure loss of the air passing between the first ribs 82 becomes large. If the interval between the first ribs 82 exceeds 15mm, fingers easily enter the gaps 83 between the first ribs 82, and since a force in a direction that widens the gaps 83 may act on the first ribs 82, there is a possibility that the fingers of the user may reach the fan 52.

The offset distance of the second rib group 86 from the vicinity of the air inlet 57 closer to the first rib group 81 is set to correspond to the length from the fingertip to the first joint of the user's finger. For example, the offset distance may be 10mm or more and 30mm or less. The offset distance may be 15mm to 20 mm.

As shown in fig. 11, the side surface 84 of the downstream end 82B of the first rib 82 and the side surface 89 of the upstream end 87A of the second rib 87 face each other. By arranging the side surface 84 of the first rib 82 and the side surface 89 of the second rib 87 substantially in parallel with each other with the side surface 84 of the first rib 82 inclined at an angle equal to the angle at which the side surface 89 of the second rib 87 is inclined with respect to the extending direction of the first rib 82, the pressure loss of the air flowing from the gap 83 between the first ribs 82 to the gap 88 between the second ribs 87 can be reduced.

The distance between the side surface 84 of the first rib 82 and the side surface 89 of the second rib 87 facing each other may be 6mm at the base portion of the rib and 7mm at the tip end of the rib.

As shown in fig. 11, the side surface 84 of the downstream end 82B of the first rib 82 is inclined at an angle of 30 ° or less with respect to the extending direction of the first rib 82, and the side surface 89 of the upstream end 87A of the second rib 87 is inclined at an angle of 30 ° or less with respect to the extending direction of the second rib 87. When the inclination angle of the side surface 84 of the first rib 82 and the side surface 89 of the second rib 87 exceeds 30 °, the air flow flowing through the gap 83 between the first ribs 82 or the gap 88 between the second ribs 87 is peeled off to generate a vortex, and the pressure loss increases. By setting the inclination angle to 30 ° or less, the occurrence of peeling can be suppressed, and the pressure loss can be reduced.

As shown in fig. 11, the plurality of first ribs 82 are arranged so that the extending directions thereof are parallel to each other. By arranging the first ribs 82 as described above, the gaps 83 between the first ribs 82 are formed uniformly, and therefore, the situation in which the user's fingers are inserted through the gaps 83 can be more reliably prevented.

As shown in fig. 12, when the ribs at one end of the row are compared among the plurality of first ribs 82 and second ribs 87 arranged along the peripheral edge of the air inlet 57, the inclination angle of the second ribs 87 with respect to the radial direction of the fan 52 is smaller than the inclination angle of the first ribs 82. As described above, it is desirable that the first ribs 82 be arranged in parallel. In contrast, the second rib 87 may be provided so that a finger entering the gap 83 of the first rib 82 can be prevented at the upstream end 87A, and the extending direction of the second rib 87 may be non-parallel to the extending direction of the first rib 82. By changing the angle between the extending direction of the second ribs 87 and the radial direction of the fan 52 to a small value, the air passing through the gaps 88 between the second ribs 87 can be rectified so as to flow toward the air inlet 57. Therefore, the flow rate of the air introduced into the air inlet 57 can be increased.

As shown in fig. 6, a float position detection substrate 91 for detecting the water level in the water storage tray 30, a right rib 92, and a left rib 93 are disposed adjacent to the water storage tray 30. The right rib 92, the float position detecting substrate 91, and the left rib 93 are arranged in this order. The right rib 92 and the left rib 93 are inclined with respect to the vertical direction so that the vertical position decreases with distance from the float position detecting substrate 91.

The float position detecting board 91 is disposed below the water surface when the water storage tray 30 is full of water, in order to detect a decrease in water in the water storage tray 30 and/or a loss of water in the water storage tray 30. In the event of the humidified air cleaner 1 falling over, the remaining water in the water storage tray 30 may flow toward the float position detection substrate 91. In the humidified air cleaner 1 of the embodiment, the right rib 92 and the left rib 93 are provided in an inclined arrangement, so that the water overflowing from the water storage tray 30 flows along the inclination of the right rib 92 and the left rib 93, and the overflowing water can be prevented from immediately reaching the float position detection substrate 91. Therefore, flooding of the float position detection substrate 91 in a short time until the user of the humidified air cleaner 1 finds the tip-over can be avoided.

As shown in fig. 6, a vertical rib 94 is provided so as to intersect the right rib 92. A longitudinal rib 94 is provided to intersect the left rib 93. By providing the vertical rib 94, the strength of the right rib 92 and the left rib 93 can be increased.

As shown in fig. 14, a notch 95 is formed above the intersection of the vertical rib 94 at the intersection of the right rib 92 and the vertical rib 94. When the water flowing along the inclination of the right rib 92 reaches the longitudinal rib 94, the water further flows along the right rib 92 through the notch 95 by forming the notch 95, thereby being further away from the float position detecting substrate 91. Therefore, since the water can be more suppressed from reaching the float position detection substrate 91, flooding of the float position detection substrate 91 can be more reliably avoided.

As shown in fig. 17 and 18, a baffle 200 is provided at a branching portion 180 where a downstream air passage 170 on which the

discharges

102 and 103 are disposed is branched into a front air passage 183 and a rear air passage 184. As shown in fig. 19, one edge portion and the other edge portion in the extending direction of the baffle 200 are different in length. The left edge 201 is formed longer than the right edge 203.

The air passage of the air from the case 2 toward the outlet port is branched in the front-rear direction, and the concentration of the active species (ions) in the air flowing into the front air passage may be unbalanced with the concentration of the active species (ions) in the air flowing into the rear air passage. In the embodiment shown in fig. 17, the

discharge portions

102 and 103 are arranged in an oblique direction with respect to the left-right direction, and thus a density imbalance occurs. By providing baffles 200 having different left and right heights as shown in fig. 19 at the branching portion of the air passage in which the density imbalance occurs, the density balance can be adjusted.

As shown in fig. 20, in the configuration in which the flap 200 includes the rotary shaft 210, the flap 200 is rotated about the rotary shaft 210, so that the flow rate balance between the air flowing into the front air passage and the air flowing into the rear air passage can be adjusted. Therefore, the ratio of the air flows to the front blowout port 3 and the rear blowout port 4 can be freely adjusted.

As described above with respect to the respective embodiments, the respective embodiments may be appropriately combined. The embodiments disclosed herein are illustrative in all points and should be considered as non-limiting contents. The scope of the present invention is defined by the claims rather than the above description, and is intended to include meanings equivalent to those in the claims and all modifications within the scope.

Description of reference numerals

1 humidifying air cleaner

2 case body

2A front face

2B back side

2C Right flank

2D left side

2E above

3 front blowing outlet

4 rear blowing outlet

5 operating part

7 front shutter

8 back shutter

10 front panel

13-15, 19 notches

16 opening

20 rear panel

21 air vent

22. 24, 25 recess

26 cover body

30 water storage tray

31 tray body

32 humidifying filter

33 antibacterial agent

34 float bowl

41 Filter

50 blower

52 Fan

53 Fan Motor

54 Fan casing

56 opposite side

57 air inlet

61 Upper wall member

62. 68 side wall members

63 support member

64 reinforcing part

70 Sound absorbing Material

80 Ribs

81 first rib group

82 first rib

82A, 87A upstream end

82B, 87B downstream end

83. 88 gap

84. Side surface 89

86 second rib group

87 second rib

90 power supply substrate

91 float position detecting substrate

92 Right rib

93 left rib

94 longitudinal rib

95 gap

100 high voltage generating unit

101 unit box

102. 103 discharge part

104. 106 electrode protection part

105A, 107A Beam section

105B, 105C, 105D, 107B, 107C, 107D support

110 holder

120 ion quantity detecting substrate

130 holder receiving part

150 descending air passage

160 upstream air passage

170 downstream air passage

172. 174 wall surface of air passage

180 bifurcation part

183 front wind path

184 rear air passage

200 baffle

201 left edge part

202 front end edge part

203 right edge part

210 rotating shaft

Claims

1. An air supply device, comprising:

a fan blowing air;

a fan housing accommodating the fan;

a casing member that constitutes a part of an outer case of the apparatus and that constitutes a part of a wall surface of an upstream air passage for air blown by the fan, the upstream air passage being located upstream of the fan in a direction in which the air flows;

wall members that are independently attached to the upper side and the side of the fan casing, extend toward the outer frame member, and constitute another part of the wall surface of the upstream air passage;

a support member that is independently attached to the fan casing, extends toward the outer shell member, and is disposed outside the upstream air passage; and

and sound absorbing materials which are arranged above and at the side of the fan shell and are clamped and supported by the outline component, the wall component and the supporting component.

2. The blowing device according to claim 1, comprising a motor for rotationally driving the fan;

a blow-out port for air is formed at the upper part of the air supply device;

the sound absorbing material has a portion disposed above the motor.

3. The air supply apparatus of claim 1 or 2, comprising:

a tray which is disposed below the sound absorbing material and stores water; and

and a circuit component disposed above the sound absorbing material.

4. The blowing device according to claim 1, wherein the fan casing has an opposing surface that faces the outer shell member, and an air inlet port that is formed in the opposing surface and that faces the fan;

the air intake structure includes a plurality of ribs arranged at intervals along a peripheral edge of the air intake port on an upstream side of the air intake port in a flow direction of the air toward the air intake port between the facing surface and the outer shell member.

5. The air supply arrangement according to claim 4, wherein the plurality of ribs are attached to the fan casing and extend toward the outer shell member.

6. The air supply device according to claim 4, wherein the plurality of ribs have a thickness that decreases as they approach an upstream end in the flow direction and a thickness that decreases as they approach a downstream end in the flow direction.

7. The air supply device according to any of claims 4 to 6, wherein the plurality of ribs include a plurality of first ribs included in a first rib group and a plurality of second ribs included in a second rib group arranged in the vicinity of the air inlet port with respect to the first rib group;

the plurality of first ribs are arranged along the periphery of the air suction port at intervals;

the second ribs are arranged along the periphery of the air suction port at intervals;

the second rib is disposed between two adjacent first ribs.

8. The air supply device according to claim 7, wherein a side surface of a downstream end of the first rib in the flow direction and a side surface of an upstream end of the second rib in the flow direction are opposed to each other.

9. The air supply device according to claim 8, wherein a side surface of a downstream end in the flow direction of the first rib is inclined at an angle of 30 degrees with respect to an extending direction of the first rib^°In the following, the following description is given,

the side surface of the upstream end of the second rib in the flow direction is inclined at an angle of 30 degrees with respect to the extending direction of the second rib^°The following.

10. The blowing device according to claim 9, wherein a plurality of the first ribs included in the first rib group are arranged so that extending directions thereof are parallel to each other.

11. The blower according to claim 10, wherein the second rib group includes the second ribs inclined at a smaller angle with respect to a radial direction of the rotating fan than an angle at which the first ribs are inclined with respect to the radial direction.