WO2016013469A1 - Purificateur d'air - Google Patents

Purificateur d'air Download PDF

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Publication number
WO2016013469A1
WO2016013469A1 PCT/JP2015/070304 JP2015070304W WO2016013469A1 WO 2016013469 A1 WO2016013469 A1 WO 2016013469A1 JP 2015070304 W JP2015070304 W JP 2015070304W WO 2016013469 A1 WO2016013469 A1 WO 2016013469A1
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WO
WIPO (PCT)
Prior art keywords
air
dust sensor
suction port
casing
fan
Prior art date
Application number
PCT/JP2015/070304
Other languages
English (en)
Japanese (ja)
Inventor
佳那子 廣野
良 小西
誠司 岡
Original Assignee
ダイキン工業株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by ダイキン工業株式会社 filed Critical ダイキン工業株式会社
Publication of WO2016013469A1 publication Critical patent/WO2016013469A1/fr

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Classifications

    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/89—Arrangement or mounting of control or safety devices

Definitions

  • the present invention relates to an air cleaner.
  • Patent Document 1 Japanese Patent Application Laid-Open No. 2001-87613
  • a dust sensor that detects the amount of dust contained in the air taken into the interior. is there.
  • the dust sensor described in Patent Document 1 is configured to take air into the dust sensor from a slit provided in the casing separately from the suction port. And this slit is arrange
  • an object of the present invention is to provide an air purifier that can reduce the possibility that the amount of dust is erroneously detected.
  • the air cleaner according to the first aspect of the present invention includes a casing, a dust sensor, a filter, and a fan.
  • the casing is formed with a suction port for sucking air and a blower outlet for blowing out air sucked from the suction port.
  • the dust sensor is disposed in the casing.
  • the dust sensor detects dust contained in the air.
  • the filter cleans the air sucked from the suction port.
  • the fan generates an air flow so that air sucked from the suction port passes through the filter.
  • the dust sensor is arrange
  • the dust sensor is provided in the vicinity of the suction port. For this reason, for example, it is possible to prevent the amount of air passing through the dust sensor from becoming smaller than when the dust sensor is provided at a position away from the suction port. Therefore, the amount of air necessary for the dust sensor to detect dust can be ensured.
  • the air cleaner according to the second aspect of the present invention is the air cleaner according to the first aspect, wherein the dust sensor is arranged so that the air that has passed through the dust sensor passes through the filter. For this reason, in this air cleaner, the air which passed the dust sensor can be purified rather than blowing out from a blower outlet, without passing through a filter.
  • the air cleaner according to the third aspect of the present invention is the air cleaner according to the first aspect or the second aspect, wherein the suction ports are formed on both side surfaces of the casing.
  • the dust sensor is disposed in the vicinity of one side surface of the casing.
  • a dust sensor is disposed in the vicinity of the suction port formed on one side surface of the casing.
  • the air cleaner according to a fourth aspect of the present invention is the air cleaner according to the first aspect to the third aspect, wherein the casing has a hollow portion that is recessed inward from the outer surface. Moreover, the suction inlet is arrange
  • the air cleaner according to the fifth aspect of the present invention includes a determination unit in the air cleaner according to the first to fourth aspects.
  • a determination part correct amends the detection value of a dust sensor, and determines the cleanliness degree of air.
  • the fan has a variable air volume.
  • the determination unit corrects the detection value of the dust sensor based on the air volume of the fan.
  • the detection value of the dust sensor is corrected based on the air volume of the fan, and the degree of air cleaning is determined from the corrected detection value, so that the detection value of the dust sensor changes depending on the air volume of the fan. Even so, it is possible to reduce the possibility that the degree of cleanliness of the air is erroneously determined.
  • An air cleaner according to a sixth aspect of the present invention is the air cleaner according to the fifth aspect, and includes a storage unit.
  • the storage unit stores in advance a correction amount corresponding to the air volume of the fan as a predetermined table or a predetermined expression.
  • the determination unit corrects the detection value of the dust sensor using a predetermined table or a predetermined expression.
  • the detection value of the dust sensor is corrected using a predetermined table or a predetermined formula stored in advance in the storage unit.
  • the air that has passed through the dust sensor can be purified rather than being blown out from the outlet without passing through the filter.
  • a dust sensor is disposed in the vicinity of the suction port formed on one side surface of the casing.
  • the air cleaner according to the fifth aspect of the present invention even when the detection value of the dust sensor changes depending on the air volume of the fan, it is possible to reduce the possibility that the air cleanliness level is erroneously determined.
  • the detection value of the dust sensor is corrected using a predetermined table or a predetermined formula stored in advance in the storage unit.
  • the perspective view of the air cleaner concerning one embodiment of the present invention The elements on larger scale of the air cleaner around the left inlet.
  • the conceptual diagram of a dust sensor The figure for demonstrating the flow of the air around a dust sensor.
  • an air cleaner 10 according to an embodiment of the present invention will be described with reference to the drawings.
  • the air cleaner 10 is only an example of the air cleaner 10 according to the present invention, and can be appropriately changed without departing from the gist of the present invention.
  • FIG. 1 is a schematic external perspective view of an air cleaner 10 according to an embodiment of the present invention.
  • FIG. 2 is a partially enlarged view of the air cleaner 10 around the left suction port 12b.
  • FIG. 3 is a diagram showing a main configuration related to the air purifying function and the humidifying function of the air purifier 10 housed in the air purifier 10.
  • the air cleaner 10 is a floor-standing device as shown in FIG.
  • the air cleaner 10 is installed in an air cleaning target space.
  • the air purifier 10 has an air purifying function for removing dust in the air from the air taken inside.
  • the air cleaner 10 has a humidification function which humidifies the air after removing dust.
  • the air cleaner 10 mainly includes a casing 11, an air cleaning unit 20, a humidifying unit 30, a fan 40, a control unit 50 (see FIG. 7), and a dust sensor 60 (see FIG. 4). Prepare.
  • the casing 11 accommodates the components such as the air cleaning unit 20, the humidifying unit 30, the fan 40, the control unit 50, and the dust sensor 60 inside.
  • the casing 11 mainly has a bottom surface portion 11a, a back surface portion, a left side surface portion 11b, a right side surface portion, a top surface portion 11c, and a front panel 11d.
  • the bottom surface portion 11 a has a substantially rectangular shape that is long in the left-right direction in plan view, and constitutes a bottom surface portion of the air cleaner 10.
  • the back surface portion constitutes the back surface portion of the air cleaner 10.
  • the left side surface portion 11 b constitutes the left side surface portion of the air cleaner 10.
  • the right side surface portion constitutes the right side surface portion of the air cleaner 10.
  • the top surface portion 11 c constitutes a ceiling portion of the air cleaner 10.
  • an operation unit 51 for a user to input an instruction is disposed on the top surface portion 11c. Further, the top surface portion 11c is formed with an air outlet 13 for blowing out the air after the dust is removed from the casing 11 (further humidified during the humidifying operation) into the room.
  • the front panel 11 d constitutes a front portion of the air cleaner 10.
  • the side surface portion of the casing 11 is provided with a recessed portion 14 that is recessed inward from the outer surface of the casing 11. Further, a step is provided on the inner surface of the recessed portion 14 so that the downstream side of the air flow has a smaller diameter than the upstream side (see FIG. 6). And in this hollow part 14, the suction inlet 12 for inhaling air from the air-cleaning object space is arrange
  • the suction port 12 includes a right suction port 12a and a left suction port 12b.
  • the right inlet 12a is located between the right side and the right side of the front panel 11d.
  • the left suction port 12b is located between the left side portion and the left side surface portion 11b of the front panel 11d. For this reason, it can be said that the suction inlet 12 is formed on both side surfaces of the casing 11.
  • the right suction port 12 a and the left suction port 12 b are formed so as to extend in the vertical direction of the casing 11.
  • Air cleaning unit 20 is a unit for removing dust in the air sucked from the suction port 12 and adsorbing and decomposing odor components and the like in the air.
  • the air cleaning unit 20 mainly includes a pre-filter 21, a HEPA filter 22, and a deodorizing element 23.
  • the prefilter 21, the HEPA filter 22, and the deodorizing element 23 are arranged in this order in the casing 11 from the front side to the back side.
  • the air taken in from the inlet 12 of the casing 11 is first sent to the air cleaning unit 20, and passes through the air cleaning unit 20 in the order of the pre-filter 21, the HEPA filter 22, and the deodorizing element 23.
  • the pre-filter 21 is a filter for capturing relatively large dust in the air.
  • the HEPA (High Efficiency Particulate Air) filter 22 is an example of an air cleaning filter.
  • the HEPA filter 22 captures fine dust in the air that has passed through the pre-filter 21. Dust in the air is mainly removed by the prefilter 21 and the HEPA filter 22.
  • the deodorizing element 23 contains activated carbon or the like, and adsorbs and decomposes odors and harmful gases in the air that have passed through the pre-filter 21 and the HEPA filter 22.
  • the humidification unit 30 is a unit for supplying water to the air passing through the humidification unit 30 and humidifying it.
  • the humidification unit 30 is disposed in the casing 11 on the back side of the air cleaning unit 20.
  • the humidifying unit 30 is disposed on the downstream side of the air cleaning unit 20 in the flow direction of the air generated by driving the fan 40.
  • the humidification unit 30 mainly includes a water tray 31 and a humidification rotor 32 (see FIG. 3).
  • the water tray 31 is a storage container that stores water (water for humidification) to be supplied to the air that has passed through the air cleaning unit 20.
  • a water tank (not shown) for supplying water to the water tray 31 is provided.
  • the humidification rotor 32 is configured to be rotatable by a motor 32a (see FIG. 7).
  • the humidification rotor 32 mainly includes a water pumping unit (not shown) that pumps up the water in the water tray 31 and a humidification filter (not shown) that adsorbs the water pumped up by the water pumping unit.
  • the function of the humidification rotor 32 will be briefly described.
  • the motor 32a see FIG. 7
  • the water pumping unit of the humidification rotor 32 rotates and pumps the water in the water tray 31.
  • the water pumped up by the water pumping unit is supplied to the humidifying filter of the humidifying rotor 32 that is also rotating.
  • the humidification filter to which water is supplied by the pumping unit is in a state of adsorbing moisture.
  • the air that has passed through the air cleaning unit 20 passes through the rotating humidifying filter.
  • the air passing through the humidifying filter that has adsorbed moisture is humidified by supplying water from the humidifying filter.
  • the humidification rotor 32 humidifies the air that has passed through the air cleaning unit 20.
  • the fan 40 is attached to the back side of the casing 11.
  • the fan 40 is arrange
  • the fan 40 has a function of taking air in a target space to be cleaned into the casing 11 through the suction port 12 and allowing the air cleaning unit 20 and the humidification unit 30 to pass through.
  • the fan 40 has an air flow so that the air in the vicinity of the suction port 12 sucked from the suction port 12 passes through the air cleaning unit 20 including the prefilter 21 as the air cleaning filter and the humidification unit 30. Is generated.
  • the fan 40 has a function of discharging the air after passing through the air cleaning unit 20 and the humidifying unit 30 to the outside of the casing 11 through the air outlet 13.
  • the fan 40 is a sirocco fan.
  • the impeller 41 (see FIG. 3) of the fan 40 is rotated by the fan motor 40a (see FIG. 7)
  • the air that has passed through the air cleaning unit 20 and the humidifying unit 30 is sucked into the fan 40 from the front side.
  • the traveling direction is changed upward (see FIG. 3), and the air is blown upward from the air outlet 13 provided in the upper part of the casing 11.
  • the fan 40 has a variable rotation speed.
  • the fan motor 40a has a variable rotation speed.
  • the number of rotations of the fan motor 40a is controlled by the control unit 50 (see FIG. 7).
  • FIG. 4 is a conceptual diagram of the dust sensor 60.
  • FIG. 5A is a schematic cross-sectional view of the left suction port 12b of the air cleaner 10 and shows a state in which the upper part of the left side surface portion 11b is cut in the vertical direction in order to explain the air flow around the dust sensor 60.
  • FIG. 5B is a partial cross-sectional view in the vicinity of the left inlet 12b of the air cleaner 10, and is a view of the air cleaner 10 cut in the direction of the arrow in FIG.
  • the dust sensor 60 is disposed in the casing 11.
  • the dust sensor 60 is a sensor that detects dust contained in the air, specifically, dust contained in the air sucked into the casing 11 from the suction port 12.
  • the dust sensor 60 of the present embodiment takes air from the air cleaning target space of the air purifier 10 into the internal space 62 and detects dust passing through the internal space 62 together with the air.
  • the dust sensor 60 is disposed in the vicinity of the inlet 12 so that the amount of air passing through the internal space 62 does not decrease.
  • the dust sensor 60 of the present embodiment is provided in the vicinity of the left suction port 12b provided on one side surface of the casing 11 (left side in front view in the present embodiment).
  • the dust sensor 60 is housed in an enclosure member 70 attached to the inside of the casing 11 with respect to the opening edge of the left suction port 12b.
  • air is taken into the internal space 62 of the dust sensor 60 through the air outlets 71 a and 71 b formed in the cover 71 included in the enclosure member 70 and the air inlets and outlets 61 and 63 provided in the dust sensor 60.
  • the air in which the air is taken into the internal space 62 is exhausted out of the dust sensor 60 through the air inlets 61 and 63 (see FIGS. 4 and 5A).
  • the dust sensor 60 is a sensor that detects dust as described below and transmits a signal indicating that dust has been detected to the control unit 50.
  • the dust sensor 60 has a light emitting element and a light receiving element (not shown).
  • the light emitting element projects light into the internal space 62 through which air to be detected passes.
  • the light receiving element is disposed at a position where it does not directly receive the light emitted from the light emitting element. However, the light receiving element is disposed at a position where it can receive light scattered by hitting dust when the air passing through the internal space 62 contains dust.
  • the dust sensor 60 outputs a high level signal when the light receiving element is not receiving light, and outputs a low level signal (Lo signal) when the light receiving element is receiving light.
  • Li signal low level signal
  • the dust sensor 60 suppresses a change in the speed of the air passing through the internal space 62 as follows.
  • the dust sensor 60 has a heater 64 as a heat source for generating air convection so that the air taken into the internal space 62 flows in a certain direction. Since the flow of air flowing through the internal space 62 of the dust sensor 60 is mainly generated by the convection of air generated by the heater 64, the air can easily flow through the internal space 62 at a constant speed by controlling the heater 64 to the same temperature. .
  • the dust sensor 60 is formed with a maintenance hole (not shown) for inserting a cleaning tool for removing dirt on the lens of the light emitting element and the light receiving element.
  • a maintenance hole (not shown) for inserting a cleaning tool for removing dirt on the lens of the light emitting element and the light receiving element.
  • the cover 71 of the enclosing member 70 can be removed from the casing 11 and a cleaning tool can be inserted so as to pass through the maintenance hole to remove dirt on the light emitting element and the lens of the light receiving element.
  • the surrounding member 70 is a member that forms a flow path of air flowing through the dust sensor 60.
  • the enclosing member 70 has a main body 72 and a cover 71.
  • the main body 72 is disposed inside the casing 11.
  • the main body 72 is a box-like member having an opening 72a provided on one surface thereof, and is disposed on the upper side of the left suction port 12b so that the opening 72a faces the left suction port 12b.
  • a dust sensor 60 is disposed inside the main body 72.
  • the cover 71 is a plate-like member for covering the opening 72 a of the main body 72.
  • the cover 71 is attached to the left side surface portion 11b so as to cover a part of the upper portion of the left suction port 12b. More specifically, the cover 71 is attached to the inside of the casing 11 slightly from the opening edge of the upper part of the left suction port 12b so that the surface thereof faces the left suction port 12b. For this reason, in the left suction port 12b, air is sucked into the casing 11 from a portion located below the cover 71 in the left suction port 12b (hereinafter referred to as the left suction portion 120).
  • the cover 71 is configured to be detachable from the casing 11 so that the cover 71 can be removed when cleaning the light emitting element and the light receiving element of the dust sensor 60.
  • air outlets 71 a and 71 b are formed in the cover 71 so that air flows through the main body 72 with the opening 72 a of the main body 72 covered with the cover 71.
  • a plurality of air outflow inlets 71a and 71b are formed, and the air outflow inlet 71b is formed below the air outflow inlet 71a.
  • FIG. 7 is a control block diagram of the control unit 50 included in the air purifier 10.
  • the control unit 50 is a unit for controlling operations of various devices included in the air purifier 10. As shown in FIG. 7, the control unit 50 is mainly electrically connected to the dust sensor 60, the fan motor 40 a, the motor 32 a, and the operation unit 51.
  • the operation unit 51 functions as an input unit that receives various commands from the user (for example, an operation / stop command for the air purifier 10, a command for executing / stopping the humidification operation, a command for switching the operation mode, etc.).
  • the operation unit 51 functions as a display unit that displays an operation state of the air purifier 10 by an LED (Light Emitting Diode) or the like.
  • the control unit 50 executes the program stored in the storage unit (not shown), so that based on various commands input to the operation unit 51, detection results of the dust sensor 60, and the like, the operation unit 51 and the fan The operation of each part of the air cleaner 10 such as the motor 40a and the motor 32a is controlled.
  • control unit 50 drives the fan motor 40a when the operation unit 51 receives an operation command for the air purifier 10.
  • control unit 50 drives the motor 32a when the operation unit 51 receives an instruction to perform a humidifying operation.
  • control unit 50 calculates the cleanliness of the air based on the detection result of the dust sensor 60.
  • cleaning of air refers to a value (Lo signal ratio) represented by a ratio of time when a low level signal is received from the dust sensor 60 within a predetermined time.
  • the control unit 50 compares the calculated air cleanliness with a predetermined threshold value, thereby determining the air cleanliness level as the air cleanliness level in five stages including “clean” and “messy”. Functions as a determination unit.
  • the speed of the air passing through the internal space 62 tends to change due to the influence of the speed of the air flowing in the vicinity of the dust sensor 60, that is, the rotational speed of the fan 40.
  • the speed of the air passing through the internal space 62 tends to be easily influenced by the rotational speed of the fan 40.
  • the Lo signal ratio decreases as the rotational speed of the fan 40, that is, the air volume increases. For this reason, when the rotation speed of the fan 40 changes, that is, when the air volume changes, the air cleanliness calculated based on the detection result of the dust sensor 60 changes, so that the air clean level is erroneously determined.
  • the rotation speed of the fan motor 40a is set according to each air volume. Further, the rotation speed of the fan motor 40a is set to be larger when the air volume is “turbo” than when the air volume is "Shizuka”.
  • the control unit 50 corrects the detection result of the dust sensor 60 based on the air volume of the fan 40, and calculates the cleanliness of the air based on the corrected value.
  • the control unit 50 includes a storage unit (not shown), and a correction amount corresponding to the air volume of the fan 40 is stored in advance as a predetermined table or a predetermined expression in the storage unit.
  • the control unit 50 corrects the Lo signal ratio using a predetermined table or a predetermined formula stored in the storage unit. Then, the control unit 50 calculates the cleanliness of the air based on the corrected Lo signal ratio. As an example of correction, the control unit 50 performs output conversion of the dust sensor 60 when the air volume is large.
  • the control unit 50 determines that the Lo signal ratio calculated from the detection result of the dust sensor 60 is equal to the Lo signal ratio when the air volume is “Shizuka”. Correction is performed using a table or a predetermined formula.
  • control unit 50 has an automatic mode as an operation mode.
  • the control unit 50 changes the rotational speed of the fan 40, that is, the rotational speed of the fan motor 40a, based on the determined air cleanliness level.
  • the control unit 50 performs the following process in order to change the rotational speed of the fan motor 40a based on the air clean level.
  • a different value is stored as the rotation speed of the fan motor 40a for each air clean level.
  • the rotational speed of the fan motor 40a stored in the storage unit is determined to be larger as the air clean level is lower.
  • the control unit 50 controls the fan motor 40a so that the fan motor 40a rotates at a rotation speed corresponding to the determined air clean level.
  • control unit 50 changes the display on the display unit based on the determined air cleanliness level. For example, the LED is lit red or orange when the air clean level is low, and the LED is green when the air clean level is high.
  • the control unit 50 determines the rotation speed of the fan 40 (that is, the rotation speed of the fan motor 40a) based on the detection result of the dust sensor 60. Control is performed according to the air cleanliness level determined. The control unit 50 controls the fan motor 40a so that the rotational speed of the fan motor 40a increases as the air cleaning level decreases.
  • the air in the air-cleaning target space flows into the casing 11 through the suction port 12 of the casing 11.
  • the suction port 12 the air in the vicinity of the left suction port 12 b is sucked into the casing 11 through the left suction unit 120.
  • the air in the vicinity of the cover 71 among the air in the vicinity of the left suction port 12 b passes through the dust sensor 60 before being sucked into the casing 11 through the left suction portion 120.
  • the air in the vicinity of the cover 71 out of the air in the vicinity of the left suction port 12 b flows into the space 73 inside the enclosure member 70 from the air outflow inlets 71 a and 71 b of the cover 71 and passes through the dust sensor 60.
  • the air that has passed through the dust sensor 60 flows out of the enclosure member 70 from the air outflow inlets 71a and 71b, and is sucked into the casing 11 via the left suction portion 120.
  • the air sucked into the casing 11 through the left suction portion 120 of the left suction port 12b in the suction port 12 includes not only the air not passing through the space 73 formed by the enclosure member 70 but also the enclosure member. Air passing through the space 73 formed by 70 is also included.
  • dust, odors and the like are removed from the air.
  • the air cleaner 10 performs the humidifying operation, the air after passing through the air cleaning unit 20 is supplied with moisture when passing through the humidifying unit 30 and is humidified.
  • the air that has passed through the air cleaning unit 20 and the humidification unit 30 flows into the fan 40 from the front side.
  • the traveling direction of the air flowing into the fan 40 is changed upward by the fan 40.
  • the air traveling upward from the fan 40 is guided to the air outlet 13, blown out of the casing 11, and returns to the target space for air purification.
  • the dust sensor 60 is disposed in the vicinity of the left suction port 12b. For this reason, for example, it is possible to prevent the amount of air passing through the internal space 62 of the dust sensor 60 from becoming smaller than when the dust sensor 60 is disposed at a position away from the left suction port 12b. Therefore, the amount of air necessary for the dust sensor 60 to detect dust can be ensured.
  • the air that has passed through the dust sensor 60 is sucked into the casing 11 from the left suction portion 120 and reaches the air cleaning unit 20. That is, the dust sensor 60 is arranged so that the air that has passed through the internal space 62 of the dust sensor 60 passes through the air cleaning unit 20. For this reason, the air which passed the dust sensor 60 can be purified rather than being blown out from the blower outlet 13 without passing through the air cleaning unit 20. In addition, since the air that has passed through the dust sensor 60 passes through the air cleaning unit 20, the influence on other sensors can be eliminated.
  • the dust sensor 60 is formed in the vicinity of one left suction port 12b of the suction ports 12 formed on both side surfaces of the casing 11.
  • the suction port 12 is formed in the recess 14. For this reason, air is easily drawn from the outer surface of the casing 11 toward the suction port 12.
  • the Lo signal ratio decreases as the air volume increases. For this reason, when the detection result of the dust sensor 60 is adopted as it is and the clean level of the air is determined, when the rotation speed of the fan 40 changes, that is, when the air volume changes, based on the detection result of the dust sensor 60. If the calculated cleanness of the air changes, the air cleanliness level may be erroneously determined. For example, when the operation mode is set to the automatic mode and the air volume is operated with “turbo”, the air clean level is determined to be “clean” and the air volume is changed from “turbo” to “ When the mode is switched to “SHIZUKA”, the Lo signal ratio increases, so the air clean level is determined to be “messy”.
  • the air cleanliness calculated from the detection result of the dust sensor 60 is corrected based on the air volume of the fan 40, and the air cleanliness level is determined based on the corrected value. For this reason, even if the detection result of the dust sensor 60 changes depending on the air volume of the fan 40, it is possible to reduce the possibility that the air clean level is erroneously determined.
  • the detection result of the dust sensor 60 is corrected using a predetermined table or a predetermined formula stored in advance in the storage unit.
  • the threshold value for determining the degree of air purification may be different for each stage of air volume.
  • the present invention can reduce the possibility that the amount of dust is erroneously detected, and is effectively applied to an air cleaner equipped with a dust sensor.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

La présente invention concerne un purificateur d'air (10) équipé d'un boîtier (11), d'un préfiltre (21), d'un capteur de poussière (60), et d'un ventilateur (40). Un orifice d'aspiration sur le côté gauche (12b) pour aspirer de l'air, et un orifice de décharge pour évacuer l'air aspiré depuis l'orifice d'aspiration sur le côté gauche (12b) sont formés dans le boîtier (11). Le préfiltre (21) purifie l'air aspiré depuis l'orifice d'aspiration sur le côté gauche (12b). Le capteur de poussière (60) détecte la poussière contenue dans l'air aspiré depuis l'orifice d'aspiration sur le côté gauche (12b). Le ventilateur (40) génère un flux d'air de sorte que l'air aspiré depuis orifice d'aspiration sur le côté gauche (12b) traverse le préfiltre (21). En outre, le capteur de poussière (60) est disposé dans le voisinage de l'orifice d'aspiration sur le côté gauche (12b), de sorte que la quantité d'air traversant le capteur de poussière (60) ne soit pas réduite.
PCT/JP2015/070304 2014-07-22 2015-07-15 Purificateur d'air WO2016013469A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2014148535A JP6177734B2 (ja) 2014-07-22 2014-07-22 空気清浄機
JP2014-148535 2014-07-22

Publications (1)

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WO2016013469A1 true WO2016013469A1 (fr) 2016-01-28

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3572786A4 (fr) * 2017-01-18 2020-01-29 Denso Corporation Dispositif de détection de poussière
EP3895780A1 (fr) * 2020-04-13 2021-10-20 Carrier Corporation Système de filtration d'air négatif
ES2946482A1 (es) * 2022-01-18 2023-07-19 Cecotec Res And Development S L Aparato purificador de aire y su metodo

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101926104B1 (ko) * 2016-05-09 2018-12-06 엘지전자 주식회사 천장형 공기 조화기
KR101936209B1 (ko) * 2016-05-27 2019-01-08 엘지전자 주식회사 공기 조화기의 실내기

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