WO2013058071A1 - Dispositif ventilateur - Google Patents

Dispositif ventilateur Download PDF

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Publication number
WO2013058071A1
WO2013058071A1 PCT/JP2012/074619 JP2012074619W WO2013058071A1 WO 2013058071 A1 WO2013058071 A1 WO 2013058071A1 JP 2012074619 W JP2012074619 W JP 2012074619W WO 2013058071 A1 WO2013058071 A1 WO 2013058071A1
Authority
WO
WIPO (PCT)
Prior art keywords
air
rotational speed
blower
set rotational
air passage
Prior art date
Application number
PCT/JP2012/074619
Other languages
English (en)
Japanese (ja)
Inventor
勝司 藤井
Original Assignee
シャープ株式会社
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 シャープ株式会社 filed Critical シャープ株式会社
Publication of WO2013058071A1 publication Critical patent/WO2013058071A1/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
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0071—Indoor units, e.g. fan coil units with means for purifying supplied air
    • F24F1/0073—Indoor units, e.g. fan coil units with means for purifying supplied air characterised by the mounting or arrangement of filters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
    • F04D27/004—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids by varying driving speed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0071—Indoor units, e.g. fan coil units with means for purifying supplied air
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0071—Indoor units, e.g. fan coil units with means for purifying supplied air
    • F24F1/0076—Indoor units, e.g. fan coil units with means for purifying supplied air by electric means, e.g. ionisers or electrostatic separators
    • 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
    • F24F7/007—Ventilation with forced flow
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
    • F24F8/117—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using wet filtering
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
    • F24F8/117—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using wet filtering
    • F24F8/125—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using wet filtering using wet filter elements
    • 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
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/32—Responding to malfunctions or emergencies
    • F24F11/39—Monitoring filter performance
    • 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
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
    • F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
    • F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
    • Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating

Definitions

  • the present invention relates to a blower device including a blower fan that is PWM-controlled.
  • Patent Document 1 A conventional blower is disclosed in Patent Document 1.
  • This blower device includes an air conditioner and includes a housing that opens a suction port and a blower port. An air passage that communicates the suction port and the air outlet is provided in the housing.
  • a blower fan and a heat exchanger are arranged in the air passage.
  • the blower fan has a fan motor that is PWM controlled, and rotates while maintaining a predetermined set rotational speed.
  • a dust collection filter that collects dust is disposed between the blower fan and the suction port.
  • the blower fan When the operation of the blower starts, the blower fan is driven. Thereby, indoor air flows in into an air path from a suction inlet by ventilation of a ventilation fan. At this time, the duty ratio of the drive voltage is varied so that the fan motor of the blower fan is maintained at the set rotation speed by PWM control.
  • the air that has flowed into the air passage is collected by a dust collecting filter, and heat-exchanged with a heat exchanger to adjust the temperature. And the temperature-controlled air is sent out from a blower outlet, and indoor air conditioning is performed.
  • the present invention includes an air passage and a blower fan that is disposed in the air passage and that maintains a predetermined set rotational speed by varying a duty ratio of a drive voltage by PWM control.
  • An air blower that blows air through the air passage and distributes the air flow in the air passage when the set rotational speed is reached, based on the duty ratio that differs according to the flow resistance of the air passage. The number is changed, and the rotation speed of the blower fan is maintained at the set rotation speed after the change.
  • the blower fan is driven to blow air into the air passage, and the airflow circulates through the air passage.
  • the duty ratio of the drive voltage is varied so that the blower fan is maintained at the set rotation speed by PWM control.
  • the set rotational speed is changed when the duty ratio of the driving voltage of the blower fan is larger or smaller than the predetermined value. Then, the blower fan is PWM controlled so as to maintain the set rotational speed after the change.
  • the present invention is characterized in that, in the blower configured as described above, when the duty ratio when reaching the set rotational speed is smaller than a predetermined value, the changed set rotational speed is made larger than before the change. Yes.
  • the duty ratio of the driving voltage of the blower fan becomes small when the blower fan reaches the set rotational speed. At this time, if the duty ratio is smaller than a predetermined value, the set rotational speed is changed and increased.
  • the present invention is characterized in that, in the blower configured as described above, when the duty ratio when reaching the set rotational speed is larger than a predetermined value, the changed set rotational speed is made smaller than before the change. Yes.
  • the duty ratio of the driving voltage of the blower fan increases when the blower fan reaches the set rotational speed. At this time, if the duty ratio is larger than a predetermined value, the set rotational speed is changed to be smaller.
  • the present invention in the air blower configured as described above, includes a housing that opens a suction port and a blower port that communicate with each other through the air passage, and a lid that is attached to the housing and opens and closes the suction port.
  • the blower fan When the blower fan is driven, the air sucked from the suction port is sent out from the blower outlet, and when the lid is opened, the casing is erected on the table by the support of the lid, and the lid
  • the valve When the valve is closed, the air is sucked from the suction port through a gap between the lid and the casing, and the set rotation is detected by detecting a change in the flow resistance of the air passage due to opening and closing of the lid by the duty ratio. It is characterized by changing the number.
  • the casing when the lid is opened and placed on the table, the casing is erected on the table by the support of the lid.
  • the blower fan When the blower fan is driven, ambient air flows from the suction port into the air passage and is sent out from the blowout port toward the user's head and the like. Further, the suction port is closed by the lid when carrying the blower. At this time, the flow resistance of the air passage is greater than when the lid is opened.
  • the blower fan is driven, the surrounding air is guided to the suction port through the gap between the lid and the housing, and the air flowing through the air passage is sent from the outlet toward the user's head and the like.
  • the present invention provides a portable air blower configured as described above, wherein a housing having an inlet and an air outlet that communicate with each other through the air passage, and an air passage and a water absorbing property are disposed in the air passage.
  • the set rotational speed is changed.
  • the humidifying filter is immersed in a water tray when it is installed and absorbs water.
  • the blower fan When the blower fan is driven, ambient air flows from the suction port into the air passage. The air flowing into the air passage is dedusted by the dust collecting filter and is humidified when passing through the humidifying filter. The humidified air is sent out from the outlet.
  • the humidifying filter When the humidifying filter is removed and the blower fan is driven, the surrounding air flows into the air passage from the suction port, is removed by the dust collecting filter, and is sent out from the outlet. At this time, the flow resistance of the air passage is smaller than when the humidifying filter is attached.
  • the present invention is characterized in that, in the air blower configured as described above, an ion generator for emitting ions is provided in the air passage. According to this structure, the air containing an ion is sent by the drive of a ventilation fan and an ion generator. Thereby, sterilization etc. of a user's circumference and a room
  • the set rotational speed is changed based on the duty ratio of the drive voltage, and the rotational speed of the blower fan is maintained at the changed set rotational speed. ing.
  • the set rotational speed can be increased to prevent a reduction in the air volume.
  • the flow resistance of the air passage becomes smaller than the flow resistance corresponding to the initial set rotational speed, it is possible to reduce the set rotational speed to reduce the power consumption of the blower fan and to prevent overcurrent.
  • Cross section of the right side of the air blower of the first embodiment of the present invention Left side sectional view of the air blower according to the first embodiment of the present invention.
  • BB sectional view of FIG. CC sectional view of FIG. The perspective view which shows the air blower of 2nd Embodiment of this invention.
  • FIG. 1 is a perspective view of the air blower according to the first embodiment as viewed from the front.
  • the blower device 1 is configured to be portable, and includes a thin box-shaped housing 2 having a substantially rectangular shape in plan view and formed in a portable size.
  • a display unit 4 is provided on the front surface 2 a orthogonal to the thickness direction of the housing 2.
  • the display unit 4 is formed by a liquid crystal display panel or the like, and displays an operation state or the like of the blower device 1.
  • the back surface 2b facing the front surface 2a is orthogonal to the thickness direction of the housing 2 and is covered with a rotatable lid 3.
  • a power switch 5 is provided on one side surface 2c forming the peripheral surface of the housing 2 adjacent to the front surface 2a and the back surface 2b.
  • a blower outlet 7 is opened in the upper surface 2 d that forms the peripheral surface of the housing 2.
  • the blower outlet 7 is provided with a grid-like grill 7a.
  • FIG. 2 is a perspective view of the air blower 1 as seen from the back, showing a state in which the lid 3 is opened.
  • the lid 3 is pivotally supported by the housing 2 at the lower end away from the air outlet 7, and a suction port 6 made up of a plurality of small holes opens on the back surface 2 b of the housing 2.
  • a suction port 6 made up of a plurality of small holes opens on the back surface 2 b of the housing 2.
  • the suction port 6 is exposed, and when the lid 3 is closed, the suction port 6 and the periphery of the suction port 6 are covered.
  • the cover part 3 when the cover part 3 is opened, the housing 2 can be erected on the table by the support of the cover part 3 to install the blower 1.
  • the housing 2 has a back panel 2f that forms a back surface 2b.
  • the rear panel 2f has an opening at the front and a cross-section of the upper surface formed in a U-shaped cross section.
  • the opening on the front surface of the rear panel 2 f is covered with the partition panel 22.
  • the partition panel 22 is attached to the back panel 2f by screws (not shown) that are screwed into the screw holes 22a.
  • a front panel 2e having a U-shaped cross section on the upper surface forming the front surface 2a of the housing 2 is engaged with the front surface of the partition panel 22.
  • a cap-shaped upper cover 2g is fitted over the front panel 2e and the back panel 2f.
  • the side surface of the housing 2 is formed by a front panel 2e and a back panel 2f having a U-shaped cross section.
  • An attachment hole 2h for attaching a neck strap is provided in the upper part of the back panel 2f, and the blower 1 can be suspended from the user's neck and carried.
  • the lid 3 is pivotally supported on the housing 2 by a hinge mechanism 10.
  • the hinge mechanism 10 includes a first shaft 11, a second shaft 12, a gear 13, and a tension spring 14.
  • the first shaft 11 is provided integrally with the lid 3 and is rotatably supported by the back panel 2f.
  • the first shaft 11 forms a rotation axis of the lid portion 3.
  • the second shaft 12 is supported by the back panel 2f and is arranged to be movable in the radial direction of the first shaft 11.
  • the gear 13 is provided integrally with the first shaft 11, and a plurality of teeth 13a are formed in a range where the central angle is narrower than 90 °.
  • the second shaft 12 is disposed between adjacent teeth 13 a of the gear 13.
  • the tension spring 14 constitutes an urging means for urging the first shaft 11 and the second shaft 12 at both ends and urging the second shaft 12 in a direction of pressing the gear 13 against the gear 13.
  • the first shaft 11 and the gear 13 are integrally rotated by the rotation of the lid 3, and the second shaft 12 is moved in the direction of the tooth tip of the gear 13 against the urging force of the tension spring 14. And the 2nd shaft 12 moves relatively between the teeth 13a in the circumferential direction, and can arrange
  • a gap 23 is formed between the lid portion 3 and the rear panel 2f.
  • the gap 23 is provided between both end surfaces of the lid 3, and outside air can flow into the suction port 6 through the gap 23 with the lid 3 closed.
  • a concave portion 3 a is provided on the inner surface of the lid portion 3 at a portion facing the suction port 6.
  • the thickness of the lid 3 is reduced by the recess 3a, the enlargement of the blower 1 can be suppressed, and the strength of the lid 3 can be secured by the thickness of the portion facing the periphery of the suction port 6.
  • the strength of the lid 3 may be improved by projecting the back side of the recess 3a of the lid 3 to increase the thickness. Since the part which the cover part 3 protruded is a part which opposed the suction inlet 6 at this time, the enlargement of the air blower 1 can be suppressed.
  • an air passage 8 that covers the front surface with a partition panel 22 and connects the suction port 6 and the air outlet 7 is formed.
  • a blower fan 17 including a centrifugal fan is disposed in the air passage 8.
  • the blower fan 17 includes a fan motor and an impeller (both not shown) that are PWM-controlled. With the PWM control, the duty ratio of the drive voltage is varied so that the fan motor of the blower fan 17 is maintained at the set rotational speed.
  • the intake port (not shown) of the blower fan 17 is arranged facing the suction port 6, and the exhaust port (not shown) is arranged toward the blowout port 7.
  • the blower fan 17 is disposed at a predetermined distance in the axial direction with respect to the rear panel 2f, and the suction port 6 is provided with a dust collection filter 16 that is fixed to the inner surface side of the rear panel 2f and collects dust. .
  • the partitioning panel 22 forms an isolation chamber 22b in the upper part on the front side of the housing 2, and an isolation chamber 22c in the lower part on the front side.
  • a control board 15 on which the control circuit of the blower 1 is mounted is attached to the back side of the partition panel 22. Terminal portions 15a facing the isolation chambers 22b and 22c are connected to the control board 15.
  • the ion generator 18 and the battery 19 housed in the isolation chambers 22b and 22c are connected to the control circuit via the terminal portion 15a.
  • the ion generator 18 has a plurality of electrodes (not shown) facing the air passage 8.
  • a voltage having an AC waveform or an impulse waveform is applied to the electrodes.
  • a positive voltage is applied to one electrode, and hydrogen ions generated by ionization combine with moisture in the air to form positive cluster ions mainly composed of H + (H 2 O) m.
  • a negative voltage is applied to the other electrode, and oxygen ions generated by ionization combine with moisture in the air to form negatively-charged cluster ions mainly composed of O 2 ⁇ (H 2 O) n.
  • m and n are arbitrary natural numbers.
  • H + (H 2 O) m and O 2 ⁇ (H 2 O) n aggregate around the surface of airborne bacteria and odorous components and surround them. Then, as shown in the formulas (1) to (3), the active species [.OH] (hydroxyl radical) or H 2 O 2 (hydrogen peroxide) is allowed to collide on the surface of floating bacteria, odorous components, etc. Aggregate to break them.
  • m ′ and n ′ are arbitrary natural numbers.
  • the air blower 1 In the air blower 1 configured as described above, the air blower 1 is carried with the lid 3 closed. When the lid 3 is opened at a desired angle and placed on the table, the housing 2 is erected on the table by the support of the lid 3. When the power switch 5 is turned on, the blower fan 17 and the ion generator 18 are driven. As the blower fan 17 is driven, outside air flows into the air passage 8 through the suction port 6 as shown by an arrow A1 (see FIG. 4).
  • the driving voltage of the fan motor of the blower fan 17 is driven at, for example, 25 kHz (period 40 ⁇ s), and the duty ratio is varied by PMW control.
  • the ventilation fan 17 is maintained by the predetermined setting rotation speed (for example, 1000 rpm).
  • the duty ratio of the drive voltage of the fan motor of the blower fan 17 is, for example, 65%.
  • the set rotational speed is set in advance so that a desired air volume is obtained with the lid 3 opened.
  • the air that has flowed into the air passage 8 is collected and removed by the dust collection filter 16.
  • the air flowing through the air passage 8 includes ions generated by the ion generator 18.
  • the air flow containing a positive ion and a negative ion is sent toward the upper user's head etc. from the blower outlet 7.
  • FIG. Thereby, while being able to obtain coolness easily outdoors or indoors, disinfection around a user and odor removal can be performed.
  • the flow resistance of the air passage 8 becomes larger than when the lid 3 is opened. Thereby, the amount of air sucked from the suction port 6 is reduced, the load of the blower fan 17 is reduced, and the duty ratio of the drive voltage of the blower fan 17 is lowered. That is, as shown in the above example, if the initial set rotational speed is 1000 rpm, the duty ratio when reaching 1000 rpm with the lid 3 closed is lower than 65%.
  • the blower fan 17 is PMW-controlled so as to be maintained at the set rotational speed (for example, 1300 rpm) after the change.
  • the duty ratio of the drive voltage of the fan motor of the blower fan 17 is, for example, 55%.
  • the decrease in the duty ratio may be determined by detecting the pulse width of the driving voltage of the blower fan 17.
  • the flow path area of the portion facing the suction port 6 is larger than the portion facing the periphery of the suction port 6 due to the concave portion 3 a provided in the lid portion 3. Therefore, a decrease in the flow rate can be suppressed, and the set rotational speed after the change can be reduced to save power.
  • the air stream containing ions is sent upward from the air outlet 7 arranged on the upper surface 2d.
  • coolness can be obtained even when the blower 1 is carried, and sterilization and odor removal around the user can be performed.
  • the set rotational speed is changed based on the duty ratio of the drive voltage, and the rotational speed of the blower fan 17 is changed.
  • the set rotational speed can be greatly changed to prevent a decrease in the air volume.
  • the change in the flow resistance of the air passage 8 can be easily detected by the duty ratio of the drive voltage of the blower fan 17 when the set rotational speed is reached.
  • the lid 3 when the lid 3 is opened, the casing 2 is erected on the table by the support of the lid 3 so that the blower 1 can be installed. Can be reduced. Further, when the lid 3 is closed, a gap 23 is provided between the lid 3 and the housing 2, and the outside air is guided to the suction port 6 through the gap 23 by driving the blower fan 17. Coolness can be obtained even when one is carried. At this time, when the lid 3 is closed and the flow resistance of the air passage 8 is increased, the set rotational speed is increased by detecting the duty ratio, and a desired air volume is obtained.
  • the ion generator 18 for releasing ions is provided in the air passage 8, it is possible to perform sterilization and odor removal around the user.
  • an initial set rotational speed (for example, 1300 rpm) of the blower fan 17 may be set so that a desired air volume is delivered when the lid 3 is closed.
  • the set rotational speed is changed and reduced.
  • the ventilation fan 17 is maintained by the setting rotation speed (for example, 1000 rpm) after a change by PWM control. Therefore, power saving of the blower fan 17 can be achieved when the lid portion 3 is opened, and an overcurrent exceeding the rated current of the fan motor can be prevented.
  • FIG. 7 shows a perspective view of the blower of the second embodiment.
  • the blower 31 constitutes a humidifier, and includes a casing 32 having a plurality of casters 33 on the bottom surface and installed on the floor surface or the like.
  • An air outlet 7 is opened on the upper surface of the housing 32, and a suction port 6 (see FIG. 8) is opened on the rear surface.
  • An operation unit 34 is provided on the upper surface of the housing 32.
  • FIG. 8 shows a side sectional view of the blower 31.
  • An air passage 40 that connects the suction port 6 and the air outlet 7 is provided inside the housing 32.
  • the upper portion of the air passage 40 is divided in the front-rear direction by a partition wall 40 a extending downward from the upper end of the housing 32.
  • a blower fan 17 including a centrifugal fan is disposed in the lower part of the air passage 40.
  • an intake passage 41 is formed behind the partition wall 40a on the upstream side of the blower fan 17, and an exhaust passage 42 extending upward is formed in front of the partition wall 40a on the downstream side.
  • the blower fan 17 has a fan motor 17a that is PWM-controlled and an impeller 17b that is rotated by the fan motor 17a. With the PWM control, the duty ratio of the driving voltage is varied so that the blower fan 17 is maintained at the set rotational speed.
  • a deodorizing filter 35 and a dust collection filter 36 are stacked so as to face the suction port 6.
  • the deodorizing filter 35 is formed, for example, by dispersing and holding activated carbon on a nonwoven fabric, and adsorbs and removes odorous components in the air.
  • the dust collection filter 36 is formed by, for example, a HEPA filter, and collects fine dust in the air. Therefore, the blower 31 also functions as an air cleaner that takes in indoor air and removes dust and odor components.
  • a humidification filter 50 is disposed between the blower fan 17 and the dust collection filter 36.
  • the humidifying filter 50 is formed by holding a disc-shaped water absorbing material 50a by a holding frame 50b, and a shaft portion 50c is provided at the center of the holding frame 50b.
  • a water receiving tray 53 is disposed below the humidifying filter 50, and the humidifying filter 50 is rotatably supported by the water receiving tray 53 by a shaft portion 50c.
  • the water receiving tray 53 is formed so as to be slidable laterally with respect to the housing 32 and is supplied with water from a detachable water supply tank (not shown). Thereby, the lower part of the humidification filter 50 is immersed in the water receiving tray 53. Further, the humidifying filter 50 is detachably provided to the water tray 53.
  • the water absorbing material 50a of the humidifying filter 50 is formed of a non-woven fabric having air permeability and water absorption. As a result, the water absorbing material 50 a absorbs water from the water receiving tray 53 and humidifies the air passing through the intake passage 41 and passing through the humidifying filter 50.
  • a gear portion 50 d is formed on the peripheral surface of the holding frame 50 b of the humidifying filter 50. The gear portion 50 d meshes with a plurality of transmission gears 52 that transmit rotation by a drive motor 51 supported by the housing 32. Thereby, the humidification filter 50 rotates and the air which distribute
  • an ion generator 18 similar to that of the first embodiment is arranged facing the exhaust passage 42 of the air passage 40.
  • ions are released into the air passage 40.
  • the surface of the housing 32 is provided with a dust sensor and an odor sensor (both not shown) for detecting the amount of dust and odor components in the indoor air.
  • the blower device 31 has a plurality of operation modes, and switches between the weak, medium, and strong operation modes in which the set rotational speed of the blower fan 17 is different as shown in Table 1 by detection of the dust sensor and the odor sensor.
  • the operation mode is set to be weak. At this time, the rotation speed of the blower fan 17 is set to a low setting rotation speed (430 rpm). When the amount of dust or odor component in the indoor air is greater than the first threshold, the operation mode is set to inside. At this time, the rotational speed of the blower fan 17 is set to the medium speed setting rotational speed (960 rpm).
  • the operation mode is set to be strong.
  • the rotation speed of the blower fan 17 is set to a high setting rotation speed (1420 rpm). Further, the operation mode can be manually switched by operating the operation unit 34.
  • the blower fan 17 As the blower fan 17 is driven, outside air flows into the air passage 40 through the suction port 6 as shown by an arrow B1 (see FIG. 8). At this time, the drive voltage of the fan motor 17a of the blower fan 17 is driven at, for example, 25 kHz (period 40 ⁇ s), and the duty ratio is varied by PMW control. And the ventilation fan 17 is maintained by the setting rotation speed according to the operation mode, and a desired air volume is obtained.
  • the power consumption of the blower fan 17 is, for example, 2.80 W and the air volume is, for example, 0.83 CMM (m 3 / min) when the set rotational speed is reached.
  • the power consumption of the blower fan 17 is, for example, 12.72 W and the air volume is, for example, 2.81 CMM (m 3 / min) when the set rotational speed is reached.
  • the power consumption of the blower fan 17 is, for example, 42.07 W when the set rotational speed is reached, and the air volume is, for example, 4.63 CMM (m 3 / min).
  • the duty ratio of the driving voltage of the fan motor 17a of the blower fan 17 is, for example, 65%.
  • the odor component of the air flowing into the air passage 40 is removed by the deodorizing filter 35, and the dust is collected by the dust collecting filter 36 and removed.
  • the air from which dust and odor components have been removed passes through the humidifying filter 50 and is humidified.
  • the humidified air flows through the exhaust passage 42 as indicated by an arrow B2 (see FIG. 8), and includes ions generated by the ion generator 18.
  • arrow B3 (refer FIG. 8)
  • the airflow containing a positive ion and a negative ion is sent out indoors from the blower outlet 7.
  • FIG. As a result, it is possible to perform humidification and air purification in the room and perform sterilization and odor removal.
  • the indoor air can be cleaned by the dust collecting filter 36 and the deodorizing filter 35.
  • the flow resistance of the air passage 40 becomes smaller than when the humidifying filter 50 is attached.
  • the amount of air sucked from the suction port 6 increases, the load on the blower fan 17 increases, and the duty ratio of the drive voltage of the blower fan 17 increases. That is, assuming that the initial set rotational speed is 1420 rpm (when the operation mode is strong), the duty ratio when reaching 1420 rpm with the humidifying filter 50 detached is higher than 65%.
  • blower fan 17 is maintained at the initial set rotational speed, power consumption increases and there is a danger that overcurrent flows through the fan motor 17a and exceeds the rated current. For this reason, when it is detected that the duty ratio is higher than a predetermined value, the set rotational speed is changed to be small. Then, the blower fan 17 is PMW controlled so as to be maintained at the set rotational speed after the change (for example, 1350 rpm).
  • the set rotational speed is changed from 430 rpm to 360 rpm when the operation mode is weak.
  • the power consumption of the blower fan 17 is 2.40 W, for example, and the air volume is 0.83 CMM (m 3 / min), which is the same as when the humidifying filter 50 is mounted, for example.
  • the set rotational speed is changed from 960 rpm to 890 rpm.
  • the power consumption of the blower fan 17 is 10.2 W, for example, and the air volume is 2.81 CMM (m 3 / min), which is the same as when the humidifying filter 50 is mounted, for example.
  • the set rotational speed is changed from 1420 rpm to 1350 rpm.
  • the power consumption of the blower fan 17 is 37.9 W, for example, and the air volume is 4.63 CMM (m 3 / min), which is the same as when the humidifying filter 50 is mounted, for example.
  • the duty ratio of the driving voltage of the fan motor 17a of the blower fan 17 is, for example, 75%.
  • the increase in the duty ratio may be determined by detecting the pulse width of the driving voltage of the blower fan 17.
  • the set rotational speed is changed based on the duty ratio of the drive voltage, and the rotational speed of the blower fan 17 is changed. Maintained.
  • the set rotational speed can be reduced to save power and to prevent overcurrent. it can.
  • the change in the flow resistance of the air passage 40 can be easily detected by the duty ratio of the driving voltage of the blower fan 17 when the set rotational speed is reached.
  • the humidifying filter 50 can be removed to clean the room air.
  • the set rotational speed is changed and made small by detecting the duty ratio of the blower fan 17. Thereby, the power saving of the air blower 31 can be achieved.
  • the ion generator 18 that discharges ions in the air passage 40 is provided, it is possible to perform sterilization and odor removal around the room.
  • an initial set rotational speed of the blower fan 17 (for example, 1350 rpm when the operation mode is strong) may be set so that a desired air volume is delivered when the humidifying filter 50 is detached.
  • the set rotational speed is changed and increased.
  • the ventilation fan 17 is maintained by the setting rotation speed (for example, 1420 rpm) after a change by PWM control. Accordingly, it is possible to prevent a decrease in the air volume of the blower fan 17 when the humidifying filter 50 is attached.
  • the present invention can be used for a blower provided with a blower fan controlled by PMW.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Disinfection, Sterilisation Or Deodorisation Of Air (AREA)
  • Control Of Electric Motors In General (AREA)
  • Control Of Positive-Displacement Air Blowers (AREA)
  • Air Humidification (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)

Abstract

L'invention porte sur un dispositif ventilateur (1) comprenant un trajet d'air (8) et un ventilateur soufflant (17) qui est placé dans le trajet d'air (8) et qui est maintenu à un nombre de tours/minute défini prescrit en faisant varier le coefficient d'utilisation de la tension d'entraînement par une commande PWM, de sorte que le flux d'air est soufflé par le ventilateur soufflant (17) et mis en circulation dans le trajet d'air (8). Le nombre de tours/minute défini est modifié sur la base du coefficient d'utilisation, lequel varie en fonction de la résistance à l'écoulement de l'air dans le trajet d'air (8) lorsque le nombre de tours/minute défini est atteint, et le nombre de tours/minute du ventilateur soufflant (17) est maintenu au nombre de tours/minute défini après la modification.
PCT/JP2012/074619 2011-10-20 2012-09-26 Dispositif ventilateur WO2013058071A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2011-230372 2011-10-20
JP2011230372A JP2013087715A (ja) 2011-10-20 2011-10-20 送風装置

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WO2013058071A1 true WO2013058071A1 (fr) 2013-04-25

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PCT/JP2012/074619 WO2013058071A1 (fr) 2011-10-20 2012-09-26 Dispositif ventilateur

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WO (1) WO2013058071A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015205224A (ja) * 2014-04-17 2015-11-19 日立アプライアンス株式会社 空気清浄機
WO2019189298A1 (fr) * 2018-03-28 2019-10-03 日本電産株式会社 Dispositif de commande et dispositif de distribution de fluide
WO2020149285A1 (fr) 2019-01-18 2020-07-23 パナソニックＩｐマネジメント株式会社 Système de conditionnement de l'air ambiant par écoulement d'air
JP2021078725A (ja) * 2019-11-19 2021-05-27 パナソニックＩｐマネジメント株式会社 電気脱臭機

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002165477A (ja) * 2000-11-21 2002-06-07 Mitsubishi Electric Corp インバータ装置および送風装置
JP2006043005A (ja) * 2004-08-02 2006-02-16 Sharp Corp 空気調節装置及び臭い除去方法
JP2009017655A (ja) * 2007-07-03 2009-01-22 Sanyo Electric Co Ltd ファンモータ速度制御回路、ファン装置、電子機器
JP2009066466A (ja) * 2007-09-10 2009-04-02 Sharp Corp 空気清浄機
JP4625877B1 (ja) * 2010-04-19 2011-02-02 シャープ株式会社 携帯型送風装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002165477A (ja) * 2000-11-21 2002-06-07 Mitsubishi Electric Corp インバータ装置および送風装置
JP2006043005A (ja) * 2004-08-02 2006-02-16 Sharp Corp 空気調節装置及び臭い除去方法
JP2009017655A (ja) * 2007-07-03 2009-01-22 Sanyo Electric Co Ltd ファンモータ速度制御回路、ファン装置、電子機器
JP2009066466A (ja) * 2007-09-10 2009-04-02 Sharp Corp 空気清浄機
JP4625877B1 (ja) * 2010-04-19 2011-02-02 シャープ株式会社 携帯型送風装置

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