WO2016185735A1 - Air purifier - Google Patents
Air purifier Download PDFInfo
- Publication number
- WO2016185735A1 WO2016185735A1 PCT/JP2016/053230 JP2016053230W WO2016185735A1 WO 2016185735 A1 WO2016185735 A1 WO 2016185735A1 JP 2016053230 W JP2016053230 W JP 2016053230W WO 2016185735 A1 WO2016185735 A1 WO 2016185735A1
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- WIPO (PCT)
- Prior art keywords
- air
- dust
- sensitivity mode
- illuminance
- mode
- Prior art date
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F7/00—Ventilation
- F24F7/003—Ventilation in combination with air cleaning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/42—Auxiliary equipment or operation thereof
Definitions
- the present invention relates to an air cleaner provided with a dust collecting unit that collects dust in the air.
- Patent Document 1 discloses a conventional air cleaner.
- a suction port and a blower outlet are opened in a housing that is installed on the floor surface of the room, and a ventilation passage that connects the suction port and the blower outlet is provided in the housing.
- the suction port is opened at the front surface of the housing, and the air outlet is opened from the left end portion to the right end portion of the rear upper surface of the housing.
- a blower is disposed in the blower passage, and a prefilter (dust collector) that collects dust in the air is erected on the upstream side of the blower in the blower passage.
- the blower when the operation is started, the blower is driven and air is sucked from the suction port.
- the air sucked from the suction port is sent into the room through the air outlet after dust is collected by the prefilter. Thereby, indoor air can be cleaned.
- An object of the present invention is to provide an air cleaner capable of purifying a wide indoor air while suppressing an increase in size.
- the present invention provides: A chassis installed on the floor; A suction port opening in the lower peripheral surface of the housing; A first air outlet and a second air outlet that open on both sides of the upper portion of the housing, and A first branch passage that extends vertically on one side of the housing and communicates the suction port and the first outlet; and a suction passage that extends vertically on the other side of the housing.
- a ventilation passage having a second branch passage communicating the mouth and the second outlet;
- a dust collecting portion arranged in the air passage and collecting dust in the air; It is characterized by having.
- air flows into the air passage from the suction port at the lower part of the housing, and dust in the air is collected by the dust collecting part.
- the air in which the dust is collected flows through the first branch path and the second branch path and is sent out from the first outlet and the second outlet, respectively.
- the first air outlet and the second air outlet are opened vertically.
- this invention is an air cleaner of the said structure, It is provided with the 1st air blower which distribute
- the said dust collection part is the said A prefilter that faces the suction port and collects dust, and a first dust collection filter that stands between the suction port and the first blower in the housing and collects dust that is smaller than the prefilter.
- a second dust collection filter that stands between the suction port in the housing and the second blower and collects dust smaller than the pre-filter, and is a first branch outside the blow passage. It is preferable to provide a dust removing portion that is disposed in a space between the road and the second branch path and removes the dust from the prefilter.
- the dust removing unit is disposed above the first dust collecting filter and the second dust collecting filter, and dust is removed by moving the prefilter upward.
- the dust removing unit is disposed above the first dust collecting filter and the second dust collecting filter, and moves along the air intake surface of the prefilter to perform dust removal. preferable.
- the air intake surfaces of the first dust collection filter and the second dust collection filter are inclined to face each other as they approach the suction port.
- the present invention includes an illuminance sensor that detects the illuminance in the room and a human body sensor that detects the human body in the room, and the illuminance in the room is greater than a predetermined start illuminance and no human body is detected. It is preferable to have a first cleaning mode in which the dust removing unit is sometimes driven and a second cleaning mode in which the dust removing unit is driven when a human body is not detected and the human body is not detected.
- the present invention includes a dirt sensor that detects the concentration of odor components or dust in the air, an illuminance sensor that detects indoor illuminance, and a human body sensor that detects a human body in the room.
- the ranks are classified into a plurality of dirt levels, and when the dirt level is large, the rotational speeds of the first blower and the second fan are made larger than when the dirt level is small, and the dirt level is set to a predetermined level.
- a first sensitivity mode that ranks according to a boundary value; and a second sensitivity mode that determines the degree of contamination at a higher sensitivity than the first sensitivity mode and ranks the degree of contamination equal to or greater than the first sensitivity mode.
- the dust removing unit is driven when the integrated value of the degree of contamination determined every predetermined time exceeds a predetermined value.
- the first branch path that extends vertically on one side of the housing and communicates the suction port and the first air outlet, and extends vertically on the other side of the housing. It has the 2nd branch way which connects a suction inlet and a 2nd blower outlet.
- FIG.1 and FIG.2 has each shown the front view and the rear view of the air cleaner of 1st Embodiment.
- the white arrow in FIG. 1 indicates the flow of air.
- the air cleaner 1 has a housing 2 that opens on the floor surface of the room and the like by opening the suction port 4 and the air outlets 51 and 52 (first air outlet and second air outlet).
- a blower 11 first blower
- a blower 12 second blower
- a prefilter 8 a dust collection filter 91 (first dust collection filter), and a dust collection filter 92 (second dust collection filter) described later are provided.
- a dust removing unit 20 are provided.
- the pre-filter 8 and the dust collection filters 91 and 92 constitute a dust collection unit.
- the suction port 4 opens at the lower part of the back surface of the housing 2, and the air outlets 51 and 52 open at the left side and right side of the upper part of the front surface of the housing 2, respectively.
- the air outlets 51 and 52 are each opened vertically.
- a cover member (not shown) provided with a grid-like grille is detachably attached to the housing 2 at the suction port 4.
- Lattice-like grilles 51a and 52a are provided at the air outlets 51 and 52, respectively.
- a human body sensor 14 is provided at the center of the upper end of the front surface of the housing 2.
- the human body sensor 14 is composed of an infrared sensor, for example, and detects a human body in the room.
- FIG. 3 shows a top sectional view of the air cleaner 1.
- white arrows indicate the flow of air.
- a blower passage 7 is provided in the housing 2 to allow the suction port 4 and the blowout ports 51 and 52 to communicate with each other.
- a pre-filter 8 is disposed in the air passage 7 so as to face the suction port 4, and the air passage 7 is formed downstream of the pre-filter 8 so that the left side and the right side of the housing 2 extend in the vertical direction.
- Branch path 71 first branch path
- branch path 72 second branch path.
- the branch paths 71 and 72 communicate with the air outlets 51 and 52, respectively.
- a dust collection filter 91, a blower 11, and an ion generator 17 are sequentially arranged from the suction port 4 toward the blowout port 51 (from the upstream side to the downstream side of the airflow).
- a dust collection filter 92, the blower 12, and the ion generator 17 are sequentially arranged from the suction port 4 toward the blowout port 52.
- blowers 11 and 12 are respectively arranged on the left side and the right side of the housing 2.
- the blowers 11 and 12 are formed by sirocco fans driven by motors 11a and 12a, respectively, and intake air in the axial direction and exhaust air in the circumferential direction. Air is sucked from the suction port 4 by driving the blowers 11 and 12, and airflow flows through the branch paths 71 and 72, respectively.
- the prefilter 8 is erected facing the suction port 4.
- the pre-filter 8 is formed by welding a polypropylene mesh 8b (see FIG. 2) to a rectangular frame 8a (see FIG. 2) having a plurality of rows and rows of windows made of synthetic resin such as ABS. A large amount of dust in the air can be collected by the prefilter 8.
- the dust collection filters 91 and 92 are HEPA filters, and frame members 91c and 92c are welded by hot melt so as to cover the filter media 91b and 92b, respectively.
- the filter media 91b and 92b are preferably each pleated. Thereby, the filtration area of the filter media 91b and 92b can be enlarged.
- the dust collection filters 91 and 92 can collect fine dust containing PM2.5 (microparticulate matter) that is smaller than the dust collected by the pre-filter 8.
- the dust collection filters 91 and 92 are arranged at the center in the left-right direction of the housing 2 so as to be sandwiched between the blowers 11 and 12. Further, the suction surfaces 91 a and 92 a of the dust collection filters 91 and 92 are inclined and opposed so as to be separated from each other as they approach the suction port 4.
- a deodorizing filter (not shown) having an adsorbent such as activated carbon is disposed between the pre-filter 8 and the dust collection filters 91 and 92. Thereby, the odor component in air can be adsorbed and air can be deodorized.
- the ion generator 17 (refer FIG. 1) is each arrange
- a voltage having an AC waveform or an impulse waveform is applied to the electrodes.
- the applied voltage of the electrode is a positive voltage
- m and n are integers.
- active species [ ⁇ OH] hydroxyl radical
- H 2 O 2 hydrogen peroxide
- m ′ and n ′ are integers. Therefore, the air purifier 1 can perform sterilization and odor removal in the room by generating positive ions and negative ions and sending them out from the outlets 51 and 52.
- the odor sensor 18 includes a circuit having, for example, a metal oxide semiconductor, and detects the odor concentration based on a change in the resistance value of the metal oxide semiconductor when an odor component is adsorbed.
- FIG. 4 shows a side sectional view of the air purifier 1.
- White arrows indicate the air flow.
- a dust removing unit 20 that removes the pre-filter 8 is disposed in a space S between the branch path 71 and the branch path 72 above the dust collection filters 91 and 92 outside the air passage 7.
- the dust removing unit 20 includes a rotating brush 21, a dust box 22, a guide frame 23, and a pinion 24.
- the pinion 24 meshes with racks (not shown) provided on both side ends of the pre-filter 8 and is connected to the filter motor 27 (see FIG. 6).
- the pre-filter 8 reciprocates between a collection position A facing the suction port 4 and a retreat position B retracted from the collection position A.
- the prefilter 8 is guided by the guide frame 23 arranged in the space S.
- the dust box 22 is disposed along the guide frame 23 and is detachable from the housing 2.
- the dust box 22 can be attached to and detached from the housing 2 through the opening 29 (see FIG. 2) on the back surface of the housing 2.
- the rotary brush 21 is disposed in the dust box 22 and is driven to rotate by a brush motor 28 (see FIG. 6).
- the rotating brush 21 has a rotating shaft portion 21a extending in the left-right direction of the housing 2 and nylon brush hairs (not shown).
- the brush bristles stand upright on the outer periphery of the rotary shaft 21a and are mounted in a plurality of rows.
- Gears are provided at both ends of the rotating shaft portion 21a, and the rotating brush 21 is detachable from a brush motor 28 connected via the gears.
- the brush motor 28 rotates the rotating brush 21 counterclockwise in FIG. 4 via a gear. As will be described later, the dust on the prefilter 8 removed by the rotating brush 21 is accumulated in the dust box 22.
- FIG. 5 shows a top view of the air purifier 1.
- White arrows indicate the air flow.
- An operation unit 6 is provided on the front upper surface of the housing 2.
- the operation unit 6 includes a plurality of buttons 6a, and the operation setting of the air cleaner 1 is performed by operating each button 6a.
- the on / off of the blower 1 is changed, the air volume of the blowers 11 and 12 is changed, the ion generator 17 is turned on / off, each sensitivity mode to be described later is set, and the normal cleaning mode and the office cleaning mode are switched. Can be instructed.
- an illuminance sensor 15 for detecting the illuminance in the room is provided on the upper surface of the housing 2, and a notification unit 30 made of, for example, an LED is provided.
- FIG. 6 is a block diagram showing the configuration of the air purifier 1.
- the air cleaner 1 has a control unit 100 that controls each unit.
- the control unit 100 is connected to the operation unit 6, the fans 11 and 12, the ion generator 17, the illuminance sensor 15, the notification unit 30, the human body sensor 14, the odor sensor 18, the storage unit 19, the filter motor 27, and the brush motor 28.
- the storage unit 19 stores a control program for the air purifier 1 and also stores a calculation result by the control unit 100 and a detection result of the odor sensor 18 and the like.
- the air cleaner 1 has a low sensitivity mode (first sensitivity mode), a standard sensitivity mode (first sensitivity mode), and a high sensitivity mode (second sensitivity mode).
- first sensitivity mode low sensitivity mode
- second sensitivity mode high sensitivity mode
- the low sensitivity mode, the standard sensitivity mode, and the high sensitivity mode may be collectively referred to as “sensitivity mode”.
- the user can set each sensitivity mode by operating the operation unit 6.
- Table 1 shows the degree of dirt ranked according to the odor concentration and the air volume of the fans 11 and 12.
- the odor concentration detected by the odor sensor 18 is normalized, and the lowest odor concentration within the detection range is 1 and the highest is 0.
- the degree of contamination is classified into four ranks of 0 to 3 according to the odor concentration. The larger the degree of contamination, the higher the air volume (rotation speed) of the blowers 11 and 12 is set.
- the corresponding odor concentration varies depending on the sensitivity mode. That is, the normalized odor concentration boundary value with respect to the rank of the degree of dirt is larger in the standard sensitivity mode than in the low sensitivity mode, and larger in the high sensitivity mode than in the standard sensitivity mode. Thereby, it is determined that the high sensitivity mode has higher sensitivity and a higher degree of contamination than the standard sensitivity mode, and the standard sensitivity mode is determined to have higher sensitivity and a higher degree of contamination than the low sensitivity mode.
- the blowers 11 and 12 are variable to a plurality of blowing levels of “fine”, “weak”, “medium” and “strong” based on the degree of dirt.
- the rotation speeds of the blowers 11 and 12 increase in the order of “fine”, “weak”, “medium”, and “strong”.
- the blowers 11 and 12 are driven at a blower level with a higher rotational speed than when the dirt level is high and when the dirt level is high.
- the rotational speed of the blowers 11 and 12 is reduced, so that an increase in noise and power consumption can be prevented.
- the stain levels are determined as “0”, “1”, and “2”, respectively.
- the blowers 11 and 12 are driven at a blowing level of “fine”, “weak”, and “medium”.
- the air cleaner 1 has a normal cleaning mode (first cleaning mode) and an office cleaning mode (second cleaning mode) for removing dust from the prefilter 8.
- the normal cleaning mode and the office cleaning mode are switched by operating the operation unit 6.
- the normal cleaning mode is selected when the air cleaner 1 is installed in a place where there are many people at night, such as a general home.
- the office cleaning mode is selected when the air cleaner 1 is installed in a place where there are many people at night such as an office. Details of the normal cleaning mode and the office cleaning mode will be described later.
- FIG. 7 is a flowchart showing the operation of the air purifier 1.
- the human body sensor 14, the illuminance sensor 15, and the odor sensor 18 are driven in step # 11.
- the fans 11 and 12 are driven.
- the air blowing operation of the air cleaner 1 is executed, and the indoor air is sucked from the suction port 4 and flows through the branch paths 71 and 72.
- large dust in the air is collected by the prefilter 8, and fine dust in the air is collected by the dust collection filters 91 and 92.
- step # 13 the ion generator 17 is driven. Thereby, ion is contained in the air which distribute
- FIG. Air containing ions is sent into the room from the air outlets 51 and 52. Thereby, indoor air can be cleaned.
- the airflow sent from the blowout ports 51 and 52 entrains the air between the blowout port 51 and the blowout port 52 in the vicinity of the front surface of the housing 2, so that the amount of air sent forward increases. To do. Thereby, even if a room becomes large, indoor air can fully be stirred and the air away from the air cleaner 1 flows in in the housing
- step # 14 it is determined whether or not the high sensitivity mode is set. If the high sensitivity mode is set, the process proceeds to step # 18. If not set, the process proceeds to step # 15.
- Step # 15 it is determined whether or not the room illuminance I is higher than a predetermined mode switching illuminance It.
- the mode switching illuminance It is set to, for example, the illuminance when the room lighting device (not shown) in the room is turned off at night. If the illuminance I in the room is higher than the mode switching illuminance It, the process proceeds to step # 16, and if not, the process proceeds to step # 17.
- step # 16 the presence or absence of a human body in the room is detected. If there is a person, the process proceeds to step # 17, and if there is no person, the process proceeds to step # 18.
- step # 18 the high sensitivity mode is executed. Since the high sensitivity mode determines that the sensitivity is higher and the degree of contamination is higher than the standard sensitivity mode and the low sensitivity mode, the rotation speed of the blowers 11 and 12 is higher in the high sensitivity mode than in the standard sensitivity mode and the low sensitivity mode. Probability is high. For this reason, indoor air can be cleaned more rapidly in the high sensitivity mode than in the standard sensitivity mode or the low sensitivity mode.
- the mode is switched to the high sensitivity mode when there is no person in the room, it is possible to reduce unpleasant sensation due to noise of the blowers 11 and 12 and air blowing from the air outlets 51 and 52. Further, since the mode changes to the high sensitivity mode when the illuminance I is higher than the mode switching illuminance It, for example, the noise of the blowers 11 and 12 and the air blown from the outlets 51 and 52 for the user who is sleeping at night. Pleasure can be reduced.
- step # 17 it is determined whether or not the standard sensitivity mode is set. If the standard sensitivity mode is set, the process proceeds to step # 19. If the standard sensitivity mode is not set (when the low sensitivity mode is set), the process proceeds to step # 20.
- step # 19 the standard sensitivity mode is executed. Since it is determined that the standard sensitivity mode has a lower sensitivity and a higher degree of contamination than the high sensitivity mode, the standard sensitivity mode is more likely to have a smaller number of rotations of the fans 11 and 12 than in the high sensitivity mode. Thereby, even when there is a person in the room, it is possible to reduce the discomfort caused by the noise of the blowers 11 and 12 and the blowing from the outlets 51 and 52. In addition, since the standard sensitivity mode is executed when the illuminance I in the room is not higher than the mode switching illuminance It, for example, the noise of the blowers 11 and 12 and the air outlets 51 and 52 for a user sleeping at night The discomfort caused by the airflow can be reduced.
- step # 20 the low sensitivity mode is executed. Since it is determined that the low sensitivity mode has a lower sensitivity and a higher degree of contamination than the standard sensitivity mode, the low sensitivity mode is more likely to have a lower rotation speed of the fans 11 and 12 than in the standard sensitivity mode. Thereby, even when there is a person in the room, it is possible to further reduce the discomfort caused by the noise of the blowers 11 and 12 and the blowing from the outlets 51 and 52. Further, since the low sensitivity mode is executed when the illuminance I in the room is not higher than the mode switching illuminance It, for example, from the noise of the blowers 11 and 12 and the air outlets 51 and 52 for a user sleeping at night. The discomfort caused by blowing air can be further reduced.
- step # 21 it is determined whether or not there is an instruction to end the air blowing operation of the air cleaner 1. If there is an end instruction, the process proceeds to step # 22. If there is no end instruction, the process returns to step # 14, and steps # 14 to # 21 are repeated.
- step # 22 the fans 11 and 12 are stopped.
- step # 23 the ion generator 17 is stopped.
- step # 24 it is determined whether or not the accumulated value D of the degree of contamination determined every predetermined time (for example, 1 hour) exceeds the predetermined upper limit Du (for example, “20”) when the blowers 11 and 12 are driven. Is done.
- the process proceeds to step # 25.
- the integrated value D does not exceed the upper limit value Du, the human body sensor 14, the illuminance sensor 15, and the odor sensor 18 are stopped at step # 26. The operation of the air cleaner 1 ends.
- the dirt level is judged with higher sensitivity than the standard sensitivity mode, and the dirt level is ranked to the same or larger than the standard sensitivity mode. For this reason, the integrated value D tends to be larger in the high sensitivity mode than in the standard sensitivity mode.
- the number of rotations of the blowers 11 and 12 is often higher than that in the standard sensitivity mode, and therefore there is a high possibility that dust on the prefilter 8 is increased. Therefore, when the integrated value D is large, there is a high possibility that there is a lot of dust on the prefilter 8.
- FIG. 8 is a flowchart showing the dust removal operation in step # 25 of FIG.
- step # 31 it is determined whether or not there is an instruction to start the blowing operation. If there is an instruction to start the blowing operation, the process proceeds to step # 12 of FIG. 7, and if there is no instruction, the process proceeds to step # 32.
- step # 32 it is determined whether or not a predetermined time (for example, 5 minutes) has elapsed. If the predetermined time has not elapsed, the process proceeds to step # 33. If the predetermined time has elapsed, the process proceeds to step # 26 in FIG. 7 and the operation of the air purifier 1 is completed.
- a predetermined time for example, 5 minutes
- step # 33 it is determined whether there is a person in the room. If there is no person in the room, the process proceeds to step # 34, and if there is a person, the process returns to step # 31.
- step # 34 it is determined whether or not the room illuminance I is lower than a predetermined start illuminance Iu.
- the starting illuminance Iu is set to, for example, the illuminance when the room lighting device (not shown) in the room is turned off at night, and may be the same value as or different from the mode switching illuminance It (see FIG. 7). If the illuminance I is lower than the starting illuminance Iu, the process proceeds to step # 35, and if not, the process proceeds to step # 36.
- step # 35 it is determined whether or not the normal cleaning mode is set.
- the process proceeds to step # 37, and when the normal cleaning mode is set, the process returns to step # 31. That is, when the room illuminance I is lower than the start illuminance Iu and the office cleaning mode is set, step # 37 and subsequent steps are performed.
- step # 36 it is determined whether or not the normal cleaning mode is set. If the normal cleaning mode is set, the process proceeds to step # 37. If the normal cleaning mode is not set, the process returns to step # 31. That is, when the room illuminance I is higher than the start illuminance Iu and the normal cleaning mode is set, step # 37 and subsequent steps are performed.
- step # 37 the brush motor 28 is driven, and the rotating brush 21 rotates counterclockwise in FIG.
- step # 38 the filter motor 27 is driven, and the pinion 24 that meshes with the rack of the pre-filter 8 rotates. Thereby, the dust removal part 20 is driven and the pre-filter 8 slides upward from the collection position A (refer FIG. 4) which collects dust.
- step # 39 When the arrival of the pre-filter 8 at the retracted position B (see FIG. 4) is detected by a sensor (not shown), the process proceeds to step # 39 and the brush motor 28 is stopped.
- step # 40 the filter motor 27 rotates reversely, and the prefilter 8 returns from the retracted position B to the collecting position A.
- the filter motor 27 is stopped. Thereby, the drive of the dust removal part 20 is stopped.
- the prefilter 8 makes one round trip between the collection position A and the retreat position B, and the required time is about 5 minutes. For this reason, the filter motor 27 may be reversed or stopped after a predetermined time has elapsed without the sensor. Further, when the prefilter 8 returns from the retracted position B to the collecting position A, the brush motor 28 may be rotated in reverse. Thereby, the dust on the pre-filter 8 can be removed more reliably.
- step # 41 the integrated value D is reset.
- step # 42 it is determined whether or not the number of driving times N (the number of cleanings) of the brush motor 28 exceeds a predetermined upper limit number Nc. When the driving number N exceeds the upper limit number Nc, the process proceeds to step # 43. When the driving number N does not exceed the upper limit number Nc, the process returns to step # 26 in FIG.
- step # 43 the notification unit 30 notifies the user. Thereby, the user can easily recognize the disposal time of the dust in the dust box 22. After step # 43, the process returns to step # 26 in FIG. 7, and the operation of the air purifier 1 ends.
- the dust removing unit 20 is driven to remove the prefilter 8.
- the integrated value D exceeds the upper limit Du (that satisfies the cleaning start condition) and the room is bright.
- the dust removing unit 20 is driven. Therefore, the discomfort due to the noise of the dust removing unit 20 for the user who is sleeping at night can be reduced.
- the pre-filter 8 is removed by driving the dust removing unit 20.
- the air cleaner 1 when the air cleaner 1 is installed in an office where there is a low possibility that there are people at night and the user switches to the office cleaning mode, the cleaning start condition is satisfied and the room is dark and no human body is detected.
- the dust removing unit 20 is driven. Therefore, it is possible to reduce discomfort due to noise of the dust removing unit 20 for a user who is working in an office or the like in the daytime.
- a branch path 71 (first branch path) that extends vertically on one side of the housing 2 and communicates the suction port 4 and the outlet 51 and the other side of the housing 2.
- a branch path 72 (second branch path) that extends vertically and communicates the suction port 4 and the outlet 52.
- the air outlets 51 and 52 are respectively formed in a vertically long shape, the distance between the air outlet 51 and the air outlet 52 can be increased on the front surface of the housing 2. As a result, the airflow sent from the air outlets 51 and 52 can entrain more air near the front surface of the housing 2.
- the air blower 11 (1st air blower) and the air blower 12 (2nd air blower) which distribute
- a dust collection filter 91 first dust collection filter
- a dust collection filter 92 second dust collection filter
- the dust removing unit 20 is disposed in the space S between the branch path 71 and the branch path 72 above the dust collection filters 91 and 92. Thereby, the fall of the air volume by the clogging of the prefilter 8 can be prevented. Moreover, since the dust removal part 20 is not arrange
- the suction surfaces 91a and 92a of the dust collection filters 91 and 92 are inclined and face each other so as to be separated from each other as they approach the suction port 4. Thereby, the air which flowed in from the suction inlet 4 can be smoothly guide
- the standard sensitivity mode or low sensitivity mode switches to the high sensitivity mode (second sensitivity mode) regardless of the sensitivity mode setting.
- the normal cleaning mode in which the dust removing unit 20 is driven when the illuminance I in the room is larger than the predetermined start illuminance Iu and no human body is detected, and the illuminance I in the room is smaller than the start illuminance Iu.
- Office cleaning mode in which the dust removing unit 20 is driven when no dust is detected.
- the air cleaner 1 when the air cleaner 1 is installed in an office or the like where there is a low possibility that there are people at night and the user switches to the office cleaning mode, the cleaning start condition is satisfied and the room is dark and no human body is detected.
- the dust removing unit 20 is driven. Thereby, the discomfort by the noise of the dust removal part 20 with respect to the user who is working in an office etc. in the daytime can be reduced.
- the dust removal unit In the conventional configuration in which the dust removal unit is driven when the accumulated time of the operation time of the air purifier 1 reaches a predetermined time, the dust removal unit may be driven even when the amount of dust attached to the prefilter is small. . For this reason, useless driving of a dust removal part is caused, and there exists a possibility that abrasion of a dust removal part and a pre filter may increase.
- the dust removing unit 20 is driven when the accumulated value D of the degree of contamination determined every predetermined time exceeds the upper limit Du. Thereby, useless driving of the dust removing unit 20 can be suppressed. Therefore, the wear of the dust removing unit 20 and the prefilter 8 can be suppressed, and the life of the air cleaner 1 can be extended.
- FIG.9 and FIG.10 has each shown the front view and side sectional drawing of the air cleaner of this embodiment.
- the same reference numerals are assigned to the same parts as those in the first embodiment shown in FIGS.
- the configuration of the dust removing unit 20 is different from that of the first embodiment.
- step # 38 and step # 40 in FIG. 8 are different from the first embodiment.
- Other parts are the same as those in the first embodiment.
- the dust removing unit 20 is disposed in the space S outside the air passage 7 and includes a rotating brush 21, a dust box 22, and a moving motor (not shown).
- the moving motor is installed in the dust box 22 and connected to a gear (not shown) that meshes with a rack (not shown) provided in the housing 2.
- the brush motor 28 is installed in the dust box 22.
- step # 38 of FIG. 8 the moving motor is driven, and the gear meshing with the rack of the housing 2 is rotated. As a result, the dust removing unit 20 is driven, and the dust box 22 moves downward along the intake surface of the prefilter 8 from the storage position C (see FIG. 10) retracted from the prefilter 8.
- the dust on the prefilter 8 is removed by the brush bristles of the rotating brush 21.
- the dust removed from the prefilter 8 is stored in the dust box 22.
- step # 39 When the arrival of the dust box 22 at the lower end position of the pre-filter 8 is detected by a sensor (not shown), the process proceeds to step # 39.
- step # 40 the moving motor rotates reversely, and the dust box 22 returns from the lower end position of the pre-filter 8 to the storage position C.
- the moving motor is stopped. Thereby, the drive of the dust removal part 20 is stopped.
- the dust box 22 makes one round trip between the storage position C and the lower end position of the prefilter 8, and the required time is about 5 minutes. For this reason, the moving motor may be reversed or stopped after a predetermined time has elapsed without the sensor. Further, when the dust box 22 returns from the lower end position of the prefilter to the storage position C, the brush motor 28 may be reversely rotated. Thereby, the dust on the pre-filter 8 can be removed more reliably.
- the same effect as in the first embodiment can be obtained. Further, since the prefilter 8 is not moved, the wear of the prefilter 8 can be reduced.
- a dust sensor (not shown) is provided in the vicinity of the suction port 4.
- the dust sensor is composed of an optical sensor having a light emitting element and a light receiving element, and detects the concentration of dust in the air (dust concentration) based on the output pulse width output from the light receiving element.
- the dust concentration detected by the dust sensor is normalized, with 1 being the lowest in the detection range and 0 being the highest.
- the degree of contamination is classified into four ranks of 0 to 3 according to the dust concentration. The larger the degree of contamination, the higher the air volume (rotation speed) of the fans 11 and 12 is set.
- the corresponding dust concentration varies depending on the sensitivity mode. That is, the normalized dust concentration boundary value with respect to the dirt rank is larger in the standard sensitivity mode than in the low sensitivity mode, and larger in the high sensitivity mode than in the standard sensitivity mode. Thereby, it is determined that the high sensitivity mode has higher sensitivity and a higher degree of contamination than the standard sensitivity mode, and the standard sensitivity mode is determined to have higher sensitivity and a higher degree of contamination than the low sensitivity mode.
- the integrated value D is more likely to exceed the upper limit value Du than in the standard sensitivity mode or the low sensitivity mode. That is, as the number of high sensitivity modes increases, the number of dust removal operations of the air cleaner 1 increases. However, in the high sensitivity mode, the rotation speeds of the blowers 11 and 12 are likely to be larger than in the standard sensitivity mode and the low sensitivity mode, and the amount of dust on the prefilter 8 is likely to be increased.
- the amount of dust on the prefilter 8 is smaller than in the conventional configuration in which the dust removal operation is performed when the accumulated time of the operation time of the air purifier reaches a predetermined time.
- the driving of the dust removing unit 20 can be suppressed.
- the integrated value D is less likely to exceed the upper limit Du than in the high sensitivity mode. That is, in the standard sensitivity mode and the low sensitivity mode, even when the amount of dust on the prefilter 8 is large, the number of dust removal operations of the air cleaner 1 is less than that in the high sensitivity mode. For this reason, when the air blowing operation is stopped in the standard sensitivity mode or the low sensitivity mode and the answer is YES in Step # 24 in FIG. 7, the dust removal operation is further executed once after the dust removal operation in Step # 25 in FIG. . Thereby, the dust on the pre-filter 8 can be more reliably removed.
- the ranks are classified into a plurality of dirt levels according to the dust concentration in the air, and the rotation speeds of the blowers 11 and 12 are increased when the dirt levels are large than when they are small.
- the rotation speed of the blowers 11 and 12 can be reduced to prevent an increase in noise and power consumption, and when the dust concentration is high, the rotation speed of the blowers 11 and 12 can be increased to increase speed.
- dust can be removed from the air.
- the odor sensor 18 similar to 1st Embodiment may be provided, and it may rank according to several odor levels according to the odor density
- step # 17 of FIG. 7 it is not determined whether or not the standard sensitivity mode is set, but it is determined whether or not, for example, it is a midnight / early morning time zone from 11:00 pm to 5:00 am. Is done. If it is the midnight early morning time zone, the process proceeds to step # 20, and if it is not the late night early morning time period, the process proceeds to step # 19.
- the number of discharges of the ion generator 17 is 50 times / second, 70 times / second, and Set to 100 times / second.
- the ion generation amount in the standard sensitivity mode of step # 19 and the ion generation amount in the low sensitivity mode of step # 20 can be made larger than the ion generation amount in the high sensitivity mode of step # 18. Therefore, when there is a person in the room or at night or the like, the room air can be quickly cleaned while suppressing noise and air blowing to the user.
- the ion generation amount in the low sensitivity mode may be the same as the ion generation amount in the standard sensitivity mode.
- a wind speed sensor for detecting the wind speed is provided in the air passage 7 in the vicinity of the suction port 4. In the case of NO at step # 24 in FIG. 7, it is determined by the wind speed sensor whether or not the wind speed in the vicinity of the suction port 4 is lower than a predetermined lower limit speed. When the wind speed is lower than the lower limit speed, the process proceeds to step # 25. When the wind speed is not low, the process proceeds to step # 26 and the operation of the air purifier 1 is finished.
- a wind speed sensor is provided in the air passage 7 in the vicinity of the suction port 4, and the dust removing unit 20 is driven when the wind speed in the vicinity of the suction port 4 is lower than a predetermined lower limit speed. Thereby, the dust on the pre-filter 8 can be removed reliably.
- the process proceeds to step # 20 in FIG. 7 when it is a midnight early morning time zone, and the process proceeds to step # 19 in FIG. 7 when it is not a midnight early morning time zone. May be.
- the ion generation amount in the high sensitivity mode in step # 18 in FIG. 7 is larger than that in the standard sensitivity mode in step # 19 in FIG. 7 or step # 20 in FIG. The amount of generated ions in the low sensitivity mode may be increased.
- a dust sensor may be provided instead of the odor sensor 18 as in the third embodiment, or both the odor sensor 18 and the dust sensor may be provided. Good.
- the dust removing unit 20 similar to the second embodiment may be used instead of the dust removing unit 20 of the first embodiment.
- the present invention can be used for an air purifier provided with a dust collecting part for collecting dust in the air.
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Abstract
Description
床面上に設置される筐体と、
前記筐体の下部の周面に開口する吸込口と、
前記筐体の上部の両側部にそれぞれ開口する第1吹出口及び第2吹出口と、
前記筐体の一側部に上下に延びて配されて前記吸込口と第1吹出口とを連通する第1分岐路と、前記筐体の他側部に上下に延びて配されて前記吸込口と第2吹出口とを連通する第2分岐路とを有した送風通路と、
前記送風通路に配されて空気中の塵埃を捕集する集塵部と、
を備えたことを特徴としている。 In order to achieve the above object, the present invention provides:
A chassis installed on the floor;
A suction port opening in the lower peripheral surface of the housing;
A first air outlet and a second air outlet that open on both sides of the upper portion of the housing, and
A first branch passage that extends vertically on one side of the housing and communicates the suction port and the first outlet; and a suction passage that extends vertically on the other side of the housing. A ventilation passage having a second branch passage communicating the mouth and the second outlet;
A dust collecting portion arranged in the air passage and collecting dust in the air;
It is characterized by having.
以下に本発明の実施形態を図面を参照して説明する。図1及び図2は第1実施形態の空気清浄機のそれぞれ正面図及び背面図を示している。図1の白抜き矢印は空気の流れを示している。空気清浄機1は吸込口4及び吹出口51、52(第1吹出口、第2吹出口)を開口して室内の床面等に設置される筐体2を有する。筐体2内には後述する送風機11(第1送風機)、送風機12(第2送風機)、プレフィルタ8、集塵フィルタ91(第1集塵フィルタ)、集塵フィルタ92(第2集塵フィルタ)及び除塵部20が設けられる。プレフィルタ8、集塵フィルタ91、92により集塵部が構成される。 <First Embodiment>
Embodiments of the present invention will be described below with reference to the drawings. FIG.1 and FIG.2 has each shown the front view and the rear view of the air cleaner of 1st Embodiment. The white arrow in FIG. 1 indicates the flow of air. The
H+(H2O)m+H+(H2O)m’+O2 -(H2O)n+O2 -(H2O)n’
→ 2・OH+O2+(m+m'+n+n')H2O ・・・(2)
H+(H2O)m+H+(H2O)m’+O2 -(H2O)n+O2 -(H2O)n’
→ H2O2+O2+(m+m'+n+n')H2O ・・・(3) H + (H 2 O) m + O 2 − (H 2 O) n → OH + 1/2 O 2 + (m + n) H 2 O (1)
H + (H 2 O) m + H + (H 2 O) m '+ O 2 - (H 2 O) n + O 2 - (H 2 O) n'
→ 2 · OH + O 2 + (m + m ′ + n + n ′) H 2 O (2)
H + (H 2 O) m + H + (H 2 O) m '+ O 2 - (H 2 O) n + O 2 - (H 2 O) n'
→ H 2 O 2 + O 2 + (m + m ′ + n + n ′) H 2 O (3)
次に、本発明の第2実施形態について説明する。図9及び図10は本実施形態の空気清浄機のそれぞれ正面図及び側面断面図を示している。説明の便宜上、前述の図1~図8に示した第1実施形態と同様の部分には同一の符号を付している。本実施形態では、除塵部20の構成が第1実施形態とは異なっている。また、図8のステップ#38及びステップ#40が第1実施形態とは異なっている。その他の部分は第1実施形態と同様である。 Second Embodiment
Next, a second embodiment of the present invention will be described. FIG.9 and FIG.10 has each shown the front view and side sectional drawing of the air cleaner of this embodiment. For convenience of explanation, the same reference numerals are assigned to the same parts as those in the first embodiment shown in FIGS. In the present embodiment, the configuration of the
次に、本発明の第3実施形態について説明する。本実施形態では、ニオイセンサ18に替えて塵埃センサ(汚れセンサ)を設けている点で第1実施形態とは異なっている。その他の部分は第1実施形態と同様である。 <Third Embodiment>
Next, a third embodiment of the present invention will be described. This embodiment is different from the first embodiment in that a dust sensor (dirt sensor) is provided in place of the
次に、本発明の第4実施形態について説明する。本実施形態では低感度モードへの移行の判断が第1実施形態とは異なっている。また、各感度モードでのイオン発生量が異なっている。その他の部分は第1実施形態と同様である。 <Fourth embodiment>
Next, a fourth embodiment of the present invention will be described. In the present embodiment, the judgment on the transition to the low sensitivity mode is different from that in the first embodiment. Further, the amount of ion generation in each sensitivity mode is different. Other parts are the same as those in the first embodiment.
次に、本発明の第5実施形態について説明する。本実施形態では風速センサを設けている点で第1実施形態とは異なる。その他の部分は第1実施形態と同様である。 <Fifth Embodiment>
Next, a fifth embodiment of the present invention will be described. This embodiment is different from the first embodiment in that a wind speed sensor is provided. Other parts are the same as those in the first embodiment.
2 筐体
4 吸込口
6 操作部
7 送風通路
11 送風機(第1送風機)
12 送風機(第2送風機)
14 人体センサ
15 照度センサ
17 イオン発生装置
18 ニオイセンサ(汚れセンサ)
19 記憶部
20 除塵部
21 回転ブラシ
22 ダストボックス
23 ガイドフレーム
24 ピニオン
30 報知部
51 吹出口(第1吹出口)
52 吹出口(第2吹出口)
71 分岐路(第1分岐路)
72 分岐路(第2分岐路)
91 集塵フィルタ(第1集塵フィルタ)
92 集塵フィルタ(第2集塵フィルタ) DESCRIPTION OF
12 Blower (second blower)
14
DESCRIPTION OF
52 Air outlet (second air outlet)
71 branch road (first branch road)
72 branch road (second branch road)
91 Dust collection filter (first dust collection filter)
92 Dust collection filter (second dust collection filter)
Claims (6)
- 床面上に設置される筐体と、
前記筐体の下部の周面に開口する吸込口と、
前記筐体の上部の両側部にそれぞれ開口する第1吹出口及び第2吹出口と、
前記筐体の一側部に上下に延びて配されて前記吸込口と第1吹出口とを連通する第1分岐路と、前記筐体の他側部に上下に延びて配されて前記吸込口と第2吹出口とを連通する第2分岐路とを有した送風通路と、
前記送風通路に配されて空気中の塵埃を捕集する集塵部と、
を備えたことを特徴とする空気清浄機。 A chassis installed on the floor;
A suction port opening in the lower peripheral surface of the housing;
A first air outlet and a second air outlet that open on both sides of the upper portion of the housing, and
A first branch passage that extends vertically on one side of the housing and communicates the suction port and the first outlet; and a suction passage that extends vertically on the other side of the housing. A ventilation passage having a second branch passage communicating the mouth and the second outlet;
A dust collecting portion arranged in the air passage and collecting dust in the air;
An air purifier characterized by comprising: - 第1分岐路に気流を流通させる第1送風機と、
第2分岐路に気流を流通させる第2送風機と、
を備え、前記集塵部は前記吸込口に面して塵埃を捕集するプレフィルタと、前記筐体内の前記吸込口と第1送風機との間に立設して前記プレフィルタよりも小さい塵埃を捕集する第1集塵フィルタと、前記筐体内の前記吸込口と第2送風機との間に立設して前記プレフィルタよりも小さい塵埃を捕集する第2集塵フィルタとから成り、
前記送風通路の外側の第1分岐路と第2分岐路との間の空間に配置されて前記プレフィルタの除塵を行う除塵部を設けたことを特徴とする請求項1に記載の空気清浄機。 A first blower for circulating an air flow in the first branch path;
A second blower for circulating an air flow in the second branch,
The dust collecting portion faces the suction port and collects dust, and the dust collection unit is standing between the suction port and the first blower in the housing and is smaller than the prefilter. A first dust collecting filter that collects dust, and a second dust collecting filter that stands between the suction port in the housing and the second blower and collects dust smaller than the pre-filter,
2. The air cleaner according to claim 1, further comprising a dust removing unit that is disposed in a space between the first branch path and the second branch path outside the air passage to remove dust from the prefilter. . - 第1集塵フィルタ及び第2集塵フィルタの吸気面が前記吸込口に近づくほど互いに離れるように傾斜して対向することを特徴とする請求項2に記載の空気清浄機。 The air cleaner according to claim 2, wherein the air cleaners of the first dust collecting filter and the second dust collecting filter are opposed to each other so as to be separated from each other as they approach the suction port.
- 室内の照度を検知する照度センサと、室内の人体を検知する人体センサとを備え、
室内の照度が所定の開始照度よりも大きく人体が検知されないときに前記除塵部を駆動させる第1清掃モードと、室内の照度が前記開始照度よりも小さく人体が検知されないときに前記除塵部を駆動させる第2清掃モードとを有することを特徴とする請求項2または請求項3に記載の空気清浄機。 An illuminance sensor that detects the illuminance in the room and a human body sensor that detects the human body in the room,
A first cleaning mode for driving the dust removing unit when the illuminance in the room is larger than a predetermined start illuminance and no human body is detected, and the dust removing unit is driven when the illuminance in the room is smaller than the start illuminance and no human body is detected. The air cleaner according to claim 2 or 3, further comprising a second cleaning mode. - 空気中の臭気成分又は塵埃の濃度を検知する汚れセンサと、室内の照度を検知する照度センサと、室内の人体を検知する人体センサとを備え、臭気成分又は塵埃の濃度に応じて複数の汚れ度にランク分けし、前記汚れ度の大きい時に小さい時よりも第1送風機及び第2送風機の回転数を大きくするとともに、前記汚れ度を所定の境界値でランク分けする第1感度モードと、前記汚れ度を第1感度モードよりも高感度で判定して第1感度モードに対して同じ又は大きい前記汚れ度にランク分けする第2感度モードとを設定可能にし、第1感度モードの際に室内の照度が所定のモード切替照度よりも大きく人体が検知されないときに第1感度モードの設定に拘わらず第2感度モードに切り換えることを特徴とする請求項2または請求項3に記載の空気清浄機。 Provided with a dirt sensor for detecting the concentration of odorous components or dust in the air, an illuminance sensor for detecting indoor illuminance, and a human body sensor for detecting the indoor human body, and a plurality of stains according to the concentration of odorous components or dust First sensitivity mode that ranks the degree of contamination with a predetermined boundary value, and increases the rotational speed of the first blower and the second blower than when it is small when the degree of contamination is large, It is possible to set the second sensitivity mode in which the degree of contamination is determined with higher sensitivity than the first sensitivity mode, and the first sensitivity mode is ranked to the same or larger degree of contamination, and the room is set in the first sensitivity mode. 4. The second sensitivity mode is switched to the second sensitivity mode regardless of the setting of the first sensitivity mode when the human body is not detected with a illuminance greater than a predetermined mode switching illuminance. Air cleaner.
- 所定時間毎に判定された前記汚れ度の積算値が所定値を超えたときに前記除塵部を駆動させることを特徴とする請求項5に記載の空気清浄機。 6. The air cleaner according to claim 5, wherein the dust removing unit is driven when an integrated value of the degree of contamination determined every predetermined time exceeds a predetermined value.
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MYPI2017001226A MY197659A (en) | 2015-05-20 | 2016-02-03 | Air purifier |
PH12017501464A PH12017501464A1 (en) | 2015-05-20 | 2017-08-14 | Air purifier |
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JP2017101853A (en) * | 2015-11-30 | 2017-06-08 | 株式会社コーワ | Filter cleaning mechanism and air conditioner |
JP2020038035A (en) * | 2018-09-04 | 2020-03-12 | 株式会社日立製作所 | Mobile air cleaner |
CN111772543A (en) * | 2019-07-22 | 2020-10-16 | 安克创新科技股份有限公司 | Dust box, dust box assembly and cleaning device |
JP7421945B2 (en) * | 2020-02-17 | 2024-01-25 | シャープ株式会社 | Air blower |
JP6930645B1 (en) * | 2020-10-02 | 2021-09-01 | ブラザー工業株式会社 | Air cleaner |
JP7226483B2 (en) * | 2020-10-02 | 2023-02-21 | ブラザー工業株式会社 | Air cleaner |
CN113339902A (en) * | 2021-06-10 | 2021-09-03 | 安徽爱尔威仕净化科技有限公司 | Electrostatic air sterilizer for central air conditioner |
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JP2016215117A (en) | 2016-12-22 |
MY197659A (en) | 2023-06-30 |
CN107624078A (en) | 2018-01-23 |
JP6725213B2 (en) | 2020-07-15 |
CN107624078B (en) | 2021-11-23 |
PH12017501464A1 (en) | 2018-01-29 |
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