WO2020250265A1 - 集塵装置 - Google Patents

集塵装置 Download PDF

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Publication number
WO2020250265A1
WO2020250265A1 PCT/JP2019/022862 JP2019022862W WO2020250265A1 WO 2020250265 A1 WO2020250265 A1 WO 2020250265A1 JP 2019022862 W JP2019022862 W JP 2019022862W WO 2020250265 A1 WO2020250265 A1 WO 2020250265A1
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WO
WIPO (PCT)
Prior art keywords
dust
cleaning unit
unit
cleaning
brush
Prior art date
Application number
PCT/JP2019/022862
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
草太 小前
保博 中村
彰則 清水
政郎 弓削
文彦 曽根
Original Assignee
三菱電機株式会社
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 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to PCT/JP2019/022862 priority Critical patent/WO2020250265A1/ja
Priority to TW108129603A priority patent/TWI721537B/zh
Publication of WO2020250265A1 publication Critical patent/WO2020250265A1/ja

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
    • B03C3/34—Constructional details or accessories or operation thereof
    • B03C3/74—Cleaning the electrodes
    • 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
    • F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
    • F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
    • F24F7/08—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit with separate ducts for supplied and exhausted air with provisions for reversal of the input and output systems

Definitions

  • the present invention relates to a dust collector.
  • the rotary cleaning body is arranged along the suction opening on the bottom surface of the suction port body, and the suction port body for an electric vacuum cleaner equipped with a drive motor for rotating the rotary cleaning body is a rotary cleaning body.
  • a dust scraping member capable of scraping dust adhering to the rotary cleaning body when the rotary cleaner is rotated in the reverse direction is provided on the upper wall of the suction chamber (see, for example, Patent Document 1).
  • the present invention has been made to solve such a problem.
  • the purpose is to provide a dust collector capable of suppressing deterioration of dust collection performance without performing artificial maintenance work.
  • the dust collecting device is provided so as to be in contact with a cleaning target, and rotates a first cleaning portion for adhering and removing dust from the cleaning target and the first cleaning portion in a first direction.
  • a second cleaning unit provided in contact with the rotation driving unit and the first cleaning unit rotating in the first direction to remove dust adhering to the first cleaning unit, and the first cleaning unit.
  • a cleaning unit and a dust collecting unit that collects dust that has fallen off from the second cleaning unit are provided, and the rotary drive unit is in a state where the first cleaning unit and the second cleaning unit are in contact with each other.
  • the first cleaning unit is rotated in a second direction opposite to the first direction to perform a reversing operation for removing dust adhering to the second cleaning unit.
  • the dust collector according to the present invention there is an effect that deterioration of the dust collection performance can be suppressed without performing artificial maintenance work.
  • FIG. 1 is a schematic cross-sectional view of an air conditioner equipped with a dust collector.
  • FIG. 2 is a perspective view of the dust collector.
  • FIG. 3 is a perspective view of a brush included in the dust collector.
  • FIG. 4 is a block diagram showing a configuration of a control system of the dust collector.
  • FIG. 5 is a flow chart showing an example of the operation of the dust collector. The white arrows shown in FIGS. 1 and 2 indicate the flow of air.
  • the air conditioner equipped with the dust collector according to this embodiment is housed in the descending ceiling 20 in the room of the house.
  • the falling ceiling 20 refers to a region where a part of the ceiling is lowered as shown in FIG. From the viewpoint of indoor aesthetics, there are many houses where the air conditioner and other air conditioners are collectively stored in the lowered ceiling 20 as shown in FIG.
  • the lowered ceiling 20 is used as the installation space, a large installation space can be secured as compared with the case where the ceiling 20 is generally installed indoors.
  • An outdoor air supply port 21 and an outdoor exhaust port 22 are formed on the outdoor wall surface of the house where the air conditioner is installed. Further, an indoor air supply port 24 and an indoor exhaust port 23 are formed on the descending ceiling 20 of the room. An air supply air passage 30 and an exhaust air passage 40 are formed in the descending ceiling 20.
  • the air supply air passage 30 is an air passage that lowers the outdoor air from the outdoor air supply port 21, takes it into the ceiling 20, and blows it indoors from the indoor air supply port 24.
  • the exhaust air passage 40 is an air passage that lowers the indoor air from the indoor exhaust port 23, takes it into the ceiling 20, and exhausts it to the outside from the outdoor exhaust port 22.
  • the air conditioner of this embodiment includes a dust collector main body 1 and a heat exchange ventilation device 10.
  • the dust collector main body 1 and the heat exchange ventilation device 10 are arranged in this order from the upstream side of the air supply air passage 30.
  • a heat exchange ventilation device 10 is arranged in the exhaust air passage 40.
  • the outdoor air supply port 21 and the indoor air supply port 24 are connected by an air supply duct 31 via a dust collector main body 1 and a heat exchange ventilation device 10.
  • the indoor exhaust port 23 and the outdoor exhaust port 22 are connected by an exhaust duct 41 via a heat exchange ventilation device 10.
  • the heat exchange ventilation device 10 is a ventilation device having a ventilation function and an air conditioning auxiliary function.
  • the ventilation function is a function of supplying outdoor air to the room and exhausting the indoor air to the outside.
  • the heat exchange ventilation device 10 includes a fan (not shown) that blows air from the outside to the inside of the air supply air passage 30 and an exhaust air passage 40 from the inside to the outside. It has a fan (not shown) that blows air.
  • the air conditioning assist function is a function that assists the air conditioning operation of equipment that adjusts the room temperature, such as an air conditioner, by recovering heat from the exhausted indoor air and giving the recovered heat to the air to be supplied.
  • the air conditioning auxiliary function can be said to be an energy saving function because it is a function that reduces the energy burden on the equipment.
  • the heat exchange ventilation device 10 includes a heat exchanger (not shown) that exchanges heat between the air passing through the exhaust air passage 40 and the air passing through the air supply air passage 30. ing.
  • the dust collector main body 1 is a device that collects dust in the outdoor air that has fallen from the outdoor air supply port 21 and has flowed into the ceiling 20. The details of the dust collector main body 1 will be described again.
  • a first particle sensor 11a and a second particle sensor 11b for detecting the dust concentration of air are provided on the upstream side and the downstream side of the dust collector main body 1, respectively.
  • the first particle sensor 11a on the upstream side detects the dust concentration in the outdoor air.
  • the second particle sensor 11b on the downstream side detects the dust concentration in the air after removing the dust.
  • the detection signals of the first particle sensor 11a and the second particle sensor 11b are output to the cooperation control unit 25 described later.
  • the air conditioner further includes a coordinated control unit 25 that links the operation of the dust collector main body 1 and the heat exchange ventilator 10.
  • the cooperative control unit 25 is electrically connected to each of the dust collector main body 1 and the heat exchange ventilation device 10. Further, the cooperative control unit 25 controls the operation of the dust collector main body 1 and the heat exchange ventilation device 10 based on the detection signals from the first particle sensor 11a and the second particle sensor 11b.
  • the cooperative control unit 25 can be configured by hardware such as a circuit device that realizes the function, or can be configured by a computing device such as a microcomputer or a CPU and software executed on the arithmetic unit. ..
  • the dust collector main body 1 includes a housing 15. Inside the housing 15, a plurality of collection plates 2 that are rotationally driven, a plurality of brushes 3, and a dust box 4 are housed.
  • the housing 15 is formed with a suction port 13 and a discharge port 14.
  • An air passage 16 is formed in the housing 15 in which the air sucked from the suction port 13 is exhausted from the discharge port 14.
  • the dust collector main body 1 is provided in the air supply air passage 30 as shown in FIG. Therefore, the outdoor air flowing in from the outdoor air supply port 21 passes through the air passage 16 of the dust collector main body 1.
  • the collection plate 2 is a PP (Poly Propene) plastic plate having a negative triboelectric tendency.
  • the collection plate 2 has, for example, a circular shape having a thickness of 1 mm and a diameter of 300 mm.
  • the plurality of collection plates 2 are arranged at intervals of, for example, 3 mm in a direction intersecting the passage direction of the outdoor air in the housing 15.
  • the plurality of collection plates 2 are connected by a first shaft 8 penetrating the central portion of each collection plate 2, and the whole is integrated.
  • the brush 3 rubs the surface of the collection plate 2 to charge the surface of the collection plate 2 with static electricity, and at the same time, removes the dust collected by the collection plate 2.
  • the brush 3 has a structure in which the non-woven fabric 3b is attached to the support plate 3a.
  • the support plate 3a is, for example, a member made of aluminum having a rectangular shape with a thickness of 1 mm.
  • the non-woven fabric 3b is made of, for example, PA6 (Polyamide 6) fibers having a positive triboelectric tendency.
  • Each support plate 3a has two mounting holes 3c.
  • a second shaft 9 is inserted into each of the mounting holes 3c to connect the plurality of brushes 3. Further, the plurality of combined brushes 3 are fixed to the housing 15 by the second shaft 9. Then, each brush 3 is inserted into a gap between the collection plates 2 so that the non-woven fabric 3b comes into contact with the surface of each collection plate 2.
  • Each brush 3 is all grounded.
  • the brush 3 is arranged on the downstream side of the collection plate 2. Further, the brush 3 is arranged between the collection plates 2 in a posture along the passing direction of the outdoor air. In this example, the brush 3 is arranged in a horizontal position. By arranging the brush 3 in this way, it is possible to reduce the ventilation resistance to the outdoor air passing through the housing 15.
  • the dust box 4 is arranged vertically below the brush 3.
  • the dust box 4 is a container for collecting the agglomerates 17.
  • the agglomerate 17 is a mass of dust or the like that adheres to the collection plate 2 and is removed by the brush 3.
  • a first baffle material 18 and a second baffle material 19 are further provided in the housing 15.
  • the first baffle material 18 and the second baffle material 19 are arranged so as to face each other with the collection plate 2 interposed therebetween.
  • the first baffle material 18 and the second baffle material 19 rectify the outdoor air that has flowed into the housing 15 so that it passes through the collection plate 2.
  • the first baffle material 18 is arranged on the inner surface side of the upper surface 15a of the housing 15.
  • the first baffle material 18 has a surface shape along the outer peripheral surface of the collecting plate 2.
  • the second baffle material 19 is arranged on the inner surface side of the lower surface 15b of the housing 15.
  • the second baffle material 19 has a flat surface shape. Further, the second baffle material 19 suppresses noise generated by collision of air with the dust box 4. Further, the second baffle material 19 suppresses the dust collected in the dust box 4 from flying up due to the inflow of air into the dust box 4. Therefore, it is desirable that the second baffle material 19 is arranged at a height equal to or higher than the tip portion 4a of the dust box 4.
  • the dust collector main body 1 further includes a motor 6 and a drive control unit 7.
  • the motor 6 and the drive control unit 7 are provided outside the housing 15.
  • the motor 6 is connected to the first shaft 8 via a gear (not shown).
  • the rotation of the motor 6 causes the first shaft 8 to rotate.
  • the drive control unit 7 controls the rotation drive of the collection plate 2 by controlling the rotation of the motor 6.
  • the dust collector main body 1 configured as described above.
  • a triboelectric charging operation is performed to charge the surface of the dust collector plate 2 with static electricity. That is, the drive control unit 7 of the dust collector main body 1 rotates the collection plate 2 by operating the motor 6.
  • the collecting plate 2 is rotated forward (rotated in the direction of the arrow 12 in FIG. 2) at a speed of 1 rpm for 20 seconds.
  • negative static electricity is generated on the surface of the collection plate 2.
  • the collection plate 2 may be rotated so that static electricity is generated.
  • the rotation speed, rotation time, and the like shown here are examples, and may be appropriately set according to actual usage conditions and the like.
  • the outdoor air When the outdoor air is taken into the dust collector main body 1 after the triboelectric charging operation, the outdoor air is rectified by the first baffle material 18 and the second baffle material 19 and passes through the central portion between the collection plates 2. To do.
  • the dust 5 in the outdoor air is collected on the surface of the collection plate 2 by the static electricity generated on the surface of the collection plate 2.
  • the brush 3 is arranged between the collection plates 2 in a posture along the air passing direction, for example, in a posture parallel to the air passing direction. Therefore, the flow of outdoor air passing between the collection plates 2 is not significantly obstructed, and the ventilation resistance is small. Therefore, high dust collection performance can be obtained.
  • cleaning and charging operation there are automatic surface cleaning and automatic recharging operation of the collecting plate 2 (hereinafter referred to as cleaning and charging operation).
  • cleaning and charging operation first, as in the initial triboelectric charging operation described above, the collection plate 2 is positively charged at a speed of 1 rpm for 20 seconds by a command from the drive control unit 7 of the dust collector main body 1 to the motor 6. Rotate. When the collection plate 2 rotates and the surface of the collection plate 2 rubs against the brush 3, the dust adhering to the surface of the collection plate 2 is wiped off by the brush 3, and the collection plate 2 is triboelectrically charged.
  • the rotation of the collection plate 2 causes both the dust adhering to be removed and the triboelectric charge of the collection plate 2 to be performed.
  • a part of the dust adheres to the lower part of the brush 3 as an agglomerate 17.
  • the agglomerates 17 adhering to the lower part of the brush 3 have a certain size or more, they fall by gravity and are collected in the dust box 4.
  • the cooperation control unit 25 outputs a command signal to the drive control unit 7 with the fan of the heat exchange ventilation device 10 stopped, and is described above.
  • the initial triboelectric charging operation is performed.
  • the cooperative control unit 25 operates the fan of the heat exchange ventilation device 10.
  • the outdoor air taken in from the outside passes through the dust collector main body 1 and the dust in the outdoor air is removed.
  • the air from which the dust has been removed is supplied to the heat exchange ventilation device 10.
  • the outdoor air supplied to the heat exchange ventilation device 10 exchanges heat with the indoor air flowing into the heat exchange ventilation device 10 through the indoor exhaust port 23 to recover heat, and is supplied to the room from the indoor air supply port 24. ..
  • the cooperative control unit 25 reduces the dust collection performance of the dust collector main body 1 based on the detection signals from each of the first particle sensor 11a and the second particle sensor 11b arranged in the dust collector main body 1. I'm checking.
  • the cooperative control unit 25 detects a decrease in the dust collection performance of the dust collector main body 1 based on each detection signal, the cooperative control unit 25 stops the fan of the heat exchange ventilation device 10. Then, the cooperation control unit 25 causes the dust collector main body 1 to perform the above-mentioned cleaning and charging operation in a state where the air flow is stopped.
  • the dust collecting performance of the collecting plate 2 is restored by the cleaning and charging operation, the dust collecting plate 2 collects the dust again.
  • the deterioration of the dust collection performance of the dust collector main body 1 based on the detection signals from the first particle sensor 11a and the second particle sensor 11b may be detected as follows, for example. That is, when the difference in dust concentration before and after passing through the dust collector main body 1 is equal to or less than a preset concentration, it may be determined that the dust collection performance of the dust collector main body 1 is deteriorated.
  • the fiber of the collecting plate 2 may be PA6, or PTFE having a strong negative charging tendency may be used as the material of the friction body of the collecting plate 2, so that the collecting plate 2 may be positively charged.
  • the brush 3 may be made of a material that is easily positively charged.
  • the collecting plate 2 is positively charged, the brush 3 may be made of a material that is easily negatively charged.
  • the fiber of the brush 3 is a PA6 fiber
  • a PAN (Polyacrylonitrile) fiber or the like may be used as the fiber of the brush 3.
  • the friction body has high conductivity, and the conductivity may be imparted by using a material in which carbon is imparted to the fibers of the brush 3.
  • the brush 3 may have a brush shape, a sponge shape, a plate shape, or the like.
  • the brush 3 is inserted at the interval of the collection plate 2 from the downstream side to the upstream side of the collection plate 2.
  • the brush 3 may be inserted at intervals of the collection plate 2 from the upstream side to the downstream side of the collection plate 2.
  • the dust box 4 may be similarly arranged vertically below the brush 3.
  • the collecting plate 2 of this embodiment is a first cleaning unit 101.
  • the collection plate 2, which is the first cleaning unit 101 is provided so as to be in contact with the outdoor air to be cleaned. Then, the collecting plate 2 which is the first cleaning unit 101 attaches dust to the collecting plate 2 itself and removes the dust from the outdoor air to be cleaned.
  • the motor 6 and the drive control unit 7 of this embodiment are the rotary drive unit 102.
  • the first direction is the direction of forward rotation described above. That is, the direction indicated by the arrow 12 in FIG. 1 is the first direction.
  • the brush 3 of this embodiment is the second cleaning unit 106.
  • the brush 3, which is the second cleaning unit 106 is provided in contact with the first cleaning unit 101 (collecting plate 2) that rotates in the first direction described above. Then, the brush 3 which is the second cleaning unit 106 removes the dust adhering to the collection plate 2 which is the first cleaning unit 101. That is, with the second cleaning unit 106 connected to the first cleaning unit 101, the rotation driving unit 102 rotates the first cleaning unit 101 in the first direction to remove dust to be cleaned. At the same time as adhering to the cleaning unit 101, the dust adhering to the first cleaning unit 101 is removed by the second cleaning unit 106. At this time, a part of the dust adhering to the first cleaning unit 101 is removed by the second cleaning unit 106 and falls off. Further, the other part of the dust adhering to the first cleaning unit 101 adheres to the second cleaning unit 106.
  • the reversing operation is a state in which the first cleaning unit 101 and the second cleaning unit 106 are in contact with each other, and the first cleaning unit 101 is rotated in the second direction to remove dust adhering to the second cleaning unit 106. It is an action to drop off.
  • the second direction is the direction opposite to the first direction. That is, in the reversing operation, the rotation driving unit 102 rotates the first cleaning unit 101 in the opposite direction to the forward rotation described above.
  • the rotation driving unit 102 rotates the first cleaning unit 101 in the first direction. Then, when a preset operation time elapses from the start of the dust collecting operation, the dust collecting device main body 1 ends the dust collecting operation.
  • the rotation driving unit 102 causes the first cleaning unit 101 to perform a reversing operation of rotating the first cleaning unit 101 in the second direction before the dust collecting operation is completed.
  • the dust to be cleaned is attached to the first cleaning unit 101. Dust adhering to the first cleaning unit 101 while being removed from the cleaning target is removed from the first cleaning unit 101 by the second cleaning unit 106. Therefore, the dust to be cleaned can be removed by the first cleaning unit 101 for a long time. On the other hand, a part of the dust removed from the first cleaning unit 101 by the second cleaning unit 106 adheres to the second cleaning unit 106. Therefore, if the time for rotating the first cleaning unit 101 in the first direction becomes longer, the dust adhering to the second cleaning unit 106 accumulates.
  • the dust adhering to the second cleaning unit 106 can be removed by friction with the first cleaning unit 101 by performing the above-mentioned reversing operation. Therefore, it is possible to suppress the accumulation of dust not only in the first cleaning unit 101 but also in the second cleaning unit 106 without performing artificial maintenance work, and it is possible to suppress the deterioration of the dust collection performance and collect the dust. It is possible to lengthen the period.
  • the dust box 4 of this embodiment is a dust collecting unit.
  • the dust box 4, which is a dust collecting unit collects dust that has fallen off from the collecting plate 2 which is the first cleaning unit and the brush 3 which is the second cleaning unit 106. That is, when the first cleaning unit 101 is rotating in the first direction, the dust that has been wiped off from the first cleaning unit 101 by the second cleaning unit 106 is mainly collected by the dust collecting unit. To. Then, during the above-mentioned reversing operation, the dust that has fallen off from the second cleaning unit 106 is collected by the dust collecting unit.
  • the cleaning target in this embodiment is outdoor air as described above. That is, the cleaning target is a fluid flowing around the collecting plate 2 which is the first cleaning unit 101.
  • the fan of the heat exchange ventilation device 10 in this embodiment is the flow generator 104.
  • the fan of the heat exchange ventilator 10 which is the flow generator 104 generates a flow of the fluid to be cleaned.
  • the flow generator 104 changes the flow speed of the fluid to be cleaned according to the operating status of the first cleaning unit 101 by the rotation drive unit 102. Specifically, in this embodiment, the flow generator 104 stops the generation of the flow of the fluid to be cleaned during the above-mentioned reversing operation. Alternatively, the flow generator 104 makes the flow speed of the fluid to be cleaned slower than before the reversing operation during the reversing operation described above.
  • the dust box 4 which is a dust collecting part is arranged vertically downward with respect to the brush 3 which is the second cleaning part 106. Therefore, during the above-mentioned reversal operation, the rotation of the fan of the heat exchange ventilation device 10 is stopped or the rotation speed is reduced to eliminate or weaken the air flow around the brush 3. By doing so, the dust that has fallen off from the brush 3 (second cleaning portion 106) during the above-mentioned reversing operation can easily enter the dust box 4 (dust collecting portion).
  • the dust collector of this embodiment further includes a dust removal performance deterioration determination unit 103 and a notification unit 105.
  • the dust removal performance deterioration determination unit 103 determines the deterioration of the dust removal performance of the dust adhering to the first cleaning unit 101 by the second cleaning unit 106.
  • the dust removal performance deterioration determination unit 103 determines the deterioration of the dust removal performance of the first cleaning unit 101 by the second cleaning unit 106.
  • the first cleaning unit by the second cleaning unit 106 determines that the dust removal performance of the dust adhering to the 101 has deteriorated.
  • the dust adhering to the second cleaning unit 106 accumulates, the performance of removing the dust adhering to the first cleaning unit 101 by the second cleaning unit 106 deteriorates. Therefore, the amount of dust adhering to the second cleaning unit 106 is detected, and when the amount of dust adhering to the second cleaning unit 106 exceeds a certain level, the first cleaning unit 106 first detects the amount of dust. It is determined that the dust removing performance of the dust adhering to the cleaning unit 101 has deteriorated.
  • the dust removal performance deterioration determination unit 103 includes a dust sensor that detects the amount of dust adhering to the brush 3, which is the second cleaning unit 106.
  • the dust sensor for example, irradiates the brush 3 which is the second cleaning unit 106 with infrared rays or the like, and measures the amount of dust from the reflectance.
  • the dust removal performance deterioration determination unit 103 also utilizes, for example, a change in the characteristics of the friction portion generated by frictional heat when the second cleaning unit 106 is rubbed, to collect dust adhering to the second cleaning unit 106. You may ask for the amount.
  • the dust removal performance deterioration determination unit 103 determines the decrease.
  • the dust adhering to the second cleaning unit 106 accumulates and the performance of removing the dust adhering to the first cleaning unit 101 by the second cleaning unit 106 deteriorates, the dust adhering to the second cleaning unit 106 deteriorates.
  • the dust removal performance deterioration determination unit 103 includes a torque sensor that detects the torque of the rotation drive unit 102.
  • the dust removal performance deteriorates when the removal performance of the dust adhering to the first cleaning unit 101 by the second cleaning unit 106 deteriorates.
  • the determination unit 103 determines.
  • the dust removal performance deterioration determination unit 103 determines that the dust removal performance of the second cleaning unit 106 has deteriorated in the dust removal performance of the first cleaning unit 101 based on the operating time of the flow generator 104. It is a thing. When the operation time of the flow generator 104 becomes long, the dust adhering to the second cleaning unit 106 accumulates, and the ability of the second cleaning unit 106 to remove the dust adhering to the first cleaning unit 101 deteriorates. ..
  • the relationship between the operating time of the flow generator 104 in the installation environment of the dust collector main body 1 and the amount of dust adhering to the brush 3 which is the second cleaning unit 106 is specified in advance by experiments, simulations, and the like.
  • the operating time of the flow generator 104 which is considered to have deteriorated in the performance of removing dust adhering to the first cleaning unit 101 by the second cleaning unit 106, is set as a reference time.
  • the dust removal performance of the dust adhering to the first cleaning unit 101 by the second cleaning unit 106 is deteriorated.
  • the removal performance deterioration determination unit 103 determines.
  • the second cleaning unit 103 determines the deterioration of the dust removal performance of the dust adhering to the first cleaning unit 101 by 106.
  • the dust removal performance deterioration determination unit 103 is connected so as to be able to communicate with the outside via, for example, the Internet.
  • the dust removal performance deterioration determination unit 103 acquires, for example, pollen information, PM2.5 information, and the like as external information.
  • the dust removal performance deterioration determination unit 103 estimates the amount of dust adhering to the brush 3, which is the second cleaning unit 106, by using the acquired external information and the flow rate of the flow generator 104.
  • the dust removal performance deterioration determination unit 103 uses the second cleaning unit 106 to perform the first cleaning unit 101. It is determined that the performance of removing dust adhering to the surface has deteriorated.
  • the dust removal performance deterioration determination unit 103 determines that the dust removal performance of the second cleaning unit 106 deteriorates in the dust removal performance of the first cleaning unit 101 based on the amount of dust accumulated in the dust box 4. It is a judgment.
  • the dust collecting performance of the dust collector main body 1 is deteriorated, it is highly possible that the dust collecting performance of the second cleaning unit 106 also deteriorates in removing the dust adhering to the first cleaning unit 101.
  • a deterioration in the dust collection performance of the dust collector main body 1 is checked based on the amount of dust accumulated in the dust box 4 within a certain period of time, and when the dust collection performance of the dust collector main body 1 deteriorates, a second It is presumed that the performance of removing dust adhering to the first cleaning unit 101 by the cleaning unit 106 is also deteriorated.
  • the dust removal performance deterioration determination unit 103 includes a sensor that detects the amount of dust accumulated in the dust box 4.
  • the dust removal performance deterioration determination unit 103 uses the detection result of the sensor to increase the amount of dust accumulated in the dust box 4 for each operation of the dust collector main body 1 or for each preset fixed time. Ask for minutes. Then, when the increase in the amount of dust accumulated in the dust box 4 decreases by a certain amount or more from the past, the removal performance of the dust adhering to the first cleaning unit 101 by the second cleaning unit 106 deteriorates.
  • the dust removal performance deterioration determination unit 103 determines.
  • the first cleaning unit by the second cleaning unit 106 is based on the detection signals from each of the first particle sensor 11a and the second particle sensor 11b provided in the dust collector main body 1.
  • the dust removal performance deterioration determination unit 103 determines the deterioration of the dust removal performance of the dust adhering to the 101.
  • the cooperation control unit 25 checks the deterioration of the dust collection performance of the dust collector main body 1 based on the detection signals from each of the first particle sensor 11a and the second particle sensor 11b. .. When the dust collecting performance of the dust collector main body 1 is deteriorated, it is highly possible that the dust collecting performance of the second cleaning unit 106 also deteriorates in removing the dust adhering to the first cleaning unit 101.
  • the cooperation control unit 25 detects it. In addition, it is determined that the removal performance of the dust adhering to the first cleaning unit 101 by the second cleaning unit 106 has deteriorated.
  • the deterioration of the dust removing performance of the second cleaning unit 106 adhering to the first cleaning unit 101 is removed based on the air volume or the wind speed passing through the housing 15 of the dust collector main body 1.
  • the performance deterioration determination unit 103 determines.
  • the first cleaning unit 101 collects the dust.
  • the dust accumulated on the plate 2 obstructs the flow of air passing through the housing 15.
  • the dust removal performance deterioration determination unit 103 includes, for example, an air volume sensor that detects the air volume at the discharge port 14 of the housing 15 or a wind speed sensor that detects the wind speed. Then, when the air volume or the wind speed at the discharge port 14 of the housing 15 exceeds a preset reference value, the removal performance of the dust adhering to the first cleaning unit 101 by the second cleaning unit 106 is deteriorated. The dust removal performance deterioration determination unit 103 determines.
  • the deterioration of the dust removing performance of the dust adhering to the first cleaning unit 101 by the second cleaning unit 106 is reduced based on the amount of charge on the surface of the collecting plate 2 after the triboelectric charging operation described above.
  • the removal performance deterioration determination unit 103 determines. When dust adhering to the brush 3 which is the second cleaning portion 106 accumulates, the brush 3 cannot sufficiently rub the surface of the collection plate 2. Therefore, the amount of charge on the surface of the collecting plate 2 after the above-mentioned triboelectric charging operation is lower than in the normal state.
  • the dust removal performance deterioration determination unit 103 includes, for example, a surface potential sensor that detects the potential on the surface of the collection plate 2.
  • the air volume sensor for detecting the air volume at the discharge port 14 of the housing 15 or the wind speed sensor for detecting the wind speed is provided. Then, when the potential on the surface of the collecting plate 2 after the triboelectric charging operation, that is, the amount of charge becomes equal to or less than a preset reference value, the second cleaning unit for dust adhering to the first cleaning unit 101 The dust removal performance deterioration determination unit 103 determines that the removal performance by 106 has deteriorated.
  • the rotation drive unit 102 causes the above-mentioned reversal operation. ..
  • the above-mentioned reversing operation is performed to perform the dust adhering to the second cleaning unit 106. Can be removed, and the performance of removing dust adhering to the first cleaning unit 101 by the second cleaning unit 106 can be restored.
  • the notification unit 105 notifies the user, maintenance worker, manager, etc. of the dust collector of the status of the dust collector.
  • the notification unit 105 has a reduced performance of removing dust adhering to the first cleaning unit 101 by the second cleaning unit 106 even after the rotation driving unit 102 performs the above-mentioned reversing operation.
  • the dust removal performance deterioration determination unit 103 determines that this has been done, it notifies the user. By doing so, it is notified that the dust removal performance could not be recovered because the dust adhering to the second cleaning unit 106 could not be completely removed even by the reversing operation, and the second cleaning unit 106 was cleaned, replaced, etc. Maintenance can be promoted.
  • the notification unit 105 includes at least one of a lamp such as an LED, a speaker, and a liquid crystal screen. Then, the notification unit 105 performs notification by, for example, turning on / blinking a lamp such as an LED, making a sound from a speaker, or displaying on a liquid crystal screen.
  • the notification unit 105 may be configured by a dedicated application installed in a terminal device such as a smartphone or a PC owned by a user or the like, or a Web application executed by a browser of the terminal device.
  • the rotation drive unit 102 may rotate the first cleaning unit 101 in the above-mentioned reversing operation faster than before the reversing operation. By doing so, the above-mentioned reversing operation can be performed in a shorter time to remove the dust adhering to the second cleaning unit 106.
  • the brush 3 which is the second cleaning unit 106 is grounded.
  • This grounding works as a static elimination unit that removes the charge of the brush 3 which is the second cleaning unit 106, particularly in the above-mentioned reversal operation.
  • the brush 3 comes into contact with the rotating collecting plate 2, the brush 3 is charged by friction.
  • the dust adhering to the brush 3 becomes difficult to separate from the brush 3 due to the electrostatic force. Therefore, by providing the static elimination unit, the brush 3 which is the second cleaning unit 106 can be statically eliminated, and the dust adhering to the brush 3 can be easily removed in the above-mentioned reversing operation.
  • the collection plate 2 may be grounded via the first shaft 8. At this time, in order to prevent the collection plate 2 from being unintentionally discharged, it is preferable to provide a switch for switching whether or not the collection plate 2 is grounded.
  • the brush 3 may be provided with a switch for switching whether or not the brush 3 is grounded.
  • step S11 when the dust collection operation of the dust collector main body 1 is started, the motor 6 and the drive control unit 7 which are the rotation drive units 102 rotate the collection plate 2 which is the first cleaning unit 101 in the forward direction. That is, it is rotated in the first direction.
  • step S12 whether the amount of dust adhering to the second cleaning unit 106 (brush 3) detected by the dust removal performance deterioration determination unit 103 is equal to or greater than the above-mentioned reference amount. Check if it is not. If the amount of dust is equal to or greater than the reference amount, the process proceeds to step S13.
  • step S13 the rotation drive unit 102 causes the above-mentioned reversing operation to be performed. That is, the rotation drive unit 102 reversely rotates the collection plate 2, which is the first cleaning unit 101, that is, rotates in the second direction.
  • step S14 the rotation driving unit 102 ends the above-mentioned reversing operation, and returns the first cleaning unit 101 to forward rotation, that is, rotation in the first direction. After step S14, the process returns to step S12.
  • step S15 the rotation drive unit 102 confirms whether or not the elapsed time from the start of the dust collecting operation in step S11 has reached the operation end time. If the operation end time has not elapsed since the start of the dust collection operation, the process of step S15 is repeated until the operation end time elapses. Then, when the elapsed time reaches the operation end time, the process proceeds to step S16.
  • step S16 the rotation drive unit 102 causes the above-mentioned reversing operation to be performed. That is, the rotation drive unit 102 rotates the first cleaning unit 101 in the reverse direction, that is, rotates it in the second direction. Then, the process proceeds to step S17, and the rotation driving unit 102 stops the rotation of the first cleaning unit 101 to end the dust collecting operation. When the process of step S17 is completed, the series of operations ends.
  • the rotation driving unit 102 may reverse the rotation direction of the first cleaning unit 101 a plurality of times. That is, the rotation drive unit 102 may alternately repeat the rotation of the first cleaning unit 101 in the first direction and the rotation in the second direction. By doing so, it is possible to more effectively remove the dust adhering to the first cleaning unit 101 and the second cleaning unit 106.
  • FIG. 6 is a diagram schematically showing the overall configuration of a vacuum cleaner which is a dust collector.
  • 7 and 8 are cross-sectional views schematically showing the configuration of a main part of the vacuum cleaner which is a dust collector.
  • the dust collector is mounted on the air conditioner.
  • the dust collector is applied to the vacuum cleaner.
  • the dust collector according to the second embodiment will be described focusing on the differences from the first embodiment.
  • the configuration in which the description is omitted is basically the same as that in the first embodiment.
  • the electric vacuum cleaner 51 to which the dust collector according to this embodiment is applied includes a vacuum cleaner main body 60, an extension pipe 70, and a suction port 80.
  • the vacuum cleaner main body 60 is for separating dust from air containing dust (dust-containing air) and discharging the air from which the dust has been removed (clear stream air) (for example, returning it to the room).
  • a dust collecting case 61 and an electric blower 62 are provided inside the vacuum cleaner main body 60.
  • the dust collecting case 61 is for catching and collecting dust (dust) in the dust-containing air that has flowed into the vacuum cleaner main body 60.
  • the electric blower 62 is for creating an air flow for sucking dust-containing air into the dust collecting case 61 of the vacuum cleaner main body 60.
  • the hose 52 is connected to the front end of the vacuum cleaner body 60.
  • the hose 52 is made of a hollow tubular member having flexibility due to a bellows or the like.
  • One end of the extension pipe 70 is connected to the other end of the hose 52.
  • the extension tube 70 is made of a hollow tubular member.
  • the extension tube 70 exhibits, for example, a straight hollow cylinder.
  • a suction port body 80 is detachably connected to the other end of the extension pipe 70.
  • a handle 53 is attached to the extension pipe 70.
  • the handle 53 is intended to be held and operated by the user of the vacuum cleaner 51.
  • the handle 53 is provided with an operation switch (not shown) or the like for controlling the operation of the vacuum cleaner 51.
  • a suction port 81 is formed on the bottom surface of the suction port body 80.
  • the suction port 81 is for sucking air (dust-containing air) containing dust, dust, etc. on the surface to be cleaned such as the floor surface.
  • the suction port 81 of the suction port body 80 to the dust collecting case 61 of the vacuum cleaner main body 60 are communicated with each other via the extension pipe 70 and the hose 52.
  • the suction port body 80, the extension pipe 70, and the hose 52 form a suction path for allowing dust-containing air to flow from the outside to the inside of the vacuum cleaner main body 60.
  • the suction port body 80 includes a rotating brush 82, a brush cleaning body 84, a static elimination unit 85, and a brush motor 86.
  • the rotary brush 82 is for scraping dust on the surface to be cleaned.
  • the rotating brush 82 also removes dust from the dust-containing air sucked into the suction port body 80.
  • the rotary brush 82 is arranged inside the suction port body 80 so as to face the suction port 81.
  • the rotary brush 82 is rotatably supported in both directions around the brush rotation shaft 83. The rotation of the rotary brush 82 is driven by the brush motor 86 housed in the suction port body 80.
  • the brush cleaning body 84 is arranged inside the suction port body 80 in contact with the rotating brush 82.
  • the brush cleaning body 84 is, for example, a member having a non-woven fabric shape, a brush shape, a sponge shape, a plate shape, or the like.
  • the static elimination unit 85 is for removing the charge of the brush cleaning body 84.
  • the static elimination unit 85 is made of a conductive material.
  • the static elimination unit 85 is arranged in contact with the brush cleaning body 84.
  • the rotary brush 82 of this embodiment is a first cleaning unit 101.
  • the rotary brush 82 which is the first cleaning unit 101, is provided so as to be in contact with the surface to be cleaned and the dust-containing air to be cleaned. Then, the rotating brush 82, which is the first cleaning unit 101, attaches dust to the rotating brush 82 itself and removes the dust from the surface to be cleaned and the dust-containing air to be cleaned.
  • the brush motor 86 of this embodiment is a rotary drive unit 102.
  • the brush motor 86 which is the rotation drive unit 102, rotates the rotation brush 82, which is the first cleaning unit 101, in the first direction.
  • the first direction is the direction indicated by the arrow in FIG. This first direction is the rotation direction of the rotating brush 82 when the suction port body 80 is advanced on the surface to be cleaned.
  • the brush cleaning body 84 of this embodiment is a second cleaning unit 106.
  • the brush cleaning body 84 which is the second cleaning unit 106, is provided in contact with the first cleaning unit 101 (rotating brush 82) that rotates in the first direction described above. Then, the brush cleaning body 84, which is the second cleaning unit 106, removes the dust adhering to the rotating brush 82, which is the first cleaning unit 101.
  • the rotation driving unit 102 rotates the first cleaning unit 101 in the first direction to remove dust to be cleaned.
  • the dust adhering to the first cleaning unit 101 is removed by the second cleaning unit 106.
  • a part of the dust adhering to the first cleaning unit 101 is removed by the second cleaning unit 106 and falls off. Further, the other part of the dust adhering to the first cleaning unit 101 adheres to the second cleaning unit 106.
  • the brush motor 86 which is the rotation drive unit 102, causes the vacuum cleaner 51 to perform a reversing operation.
  • the reversing operation is a state in which the first cleaning unit 101 and the second cleaning unit 106 are in contact with each other, and the first cleaning unit 101 is rotated in the second direction to remove dust adhering to the second cleaning unit 106. It is an action to drop off.
  • the second direction is the direction indicated by the arrow in FIG. That is, the second direction is the direction opposite to the first direction.
  • the rotary drive unit 102 rotates the first cleaning unit 101 in the first direction.
  • This first direction is the rotation direction in which the suction port body 80 is advanced by the rotating brush 82 that rotates on the surface to be cleaned as described above. Therefore, by rotating the rotary brush 82 in the first direction, the user can easily advance the suction port body 80 on the surface to be cleaned.
  • the suction port body 80 is provided with a switch (not shown) for detecting that the surface to be cleaned and the suction port body 80 are no longer in contact with each other.
  • the rotation drive unit 102 performs a reversing operation of rotating the first cleaning unit 101 in the second direction. Let it (Fig. 8).
  • the dust collecting case 61 of this embodiment is a dust collecting unit.
  • the dust collecting case 61 which is a dust collecting unit, collects dust that has fallen off from the rotating brush 82, which is the first cleaning unit, and the brush cleaning body 84, which is the second cleaning unit 106.
  • the rotating brush 82 which is the first cleaning unit 101
  • the brush cleaning body 84 which is the second cleaning unit 106.
  • the cleaning target in this embodiment includes dust-containing air as described above. That is, the cleaning target is a fluid flowing around the rotating brush 82, which is the first cleaning unit 101.
  • the electric blower 62 in this embodiment is a flow generator 104.
  • the electric blower 62 which is a flow generator 104, generates a flow of a fluid to be cleaned.
  • the electric blower 62 which is the flow generator 104, makes the flow speed of the fluid to be cleaned faster than before the reversing operation during the reversing operation described above.
  • the dust collecting case 61 which is a dust collecting unit, has a flow of the fluid to be cleaned, that is, the flow of dust-containing air, with respect to the brush cleaning body 84, which is the second cleaning unit 106. It is located on the downstream side.
  • the rotation speed of the electric blower 62 is increased to strengthen the air flow around the brush cleaning body 84.
  • the dust that has fallen off from the brush cleaning body 84 (second cleaning unit 106) during the above-mentioned reversing operation is quickly sucked into the vacuum cleaner main body 60, and the dust collecting case 61 (dust collecting unit). Can be easily collected with.
  • the static elimination unit 85 removes the charge of the brush cleaning body 84, which is the second cleaning unit 106, particularly in the above-mentioned reversing operation.
  • the brush cleaning body 84 may be charged with static electricity due to friction.
  • dust adhering to the brush cleaning body 84 becomes difficult to separate from the brush cleaning body 84 due to electrostatic force. Therefore, by providing the static elimination unit 85, the brush cleaning body 84, which is the second cleaning unit 106, can be statically eliminated, and dust adhering to the brush cleaning body 84 can be easily removed in the above-described reversing operation.
  • the vacuum cleaner 51 to which the dust collector of this embodiment is applied also includes a dust removal performance deterioration determination unit 103 and a notification unit 105, similarly to the dust collector of the first embodiment.
  • the vacuum cleaner 51 which is the dust collector configured as described above, can also achieve the same effect as that of the first embodiment.
  • the present invention can be used as a dust collector that removes dust from a cleaning target.
  • Dust collector body 1 Dust collector body 2 Dust collector body 2 Brush 3a Support plate 3b Non-woven fabric 3c Mounting hole 4 Dust box 4a Tip part 5 Dust 6 Motor 7 Drive control unit 8 1st shaft 9 2nd shaft 10 Heat exchange ventilator 11a 1st Particle sensor 11b Second particle sensor 12 Arrow 13 Suction port 14 Discharge port 15 Housing 15a Upper surface 15b Lower surface 16 Air passage 17 Aggregate 18 First baffle material 19 Second baffle material 20 Ceiling 21 Outdoor air supply port 22 Outdoor exhaust port 23 Indoor exhaust port 24 Indoor air supply port 25 Cooperative control unit 30 Air supply air passage 31 Air supply duct 40 Exhaust air passage 41 Exhaust duct 51 Electric vacuum cleaner 52 Hose 53 Handle 60 Vacuum cleaner body 61 Dust collection case 62 Electric blower 70 Extension tube 80 Suction port body 81 Suction port 82 Rotating brush 83 Brush rotating shaft 84 Brush cleaning body 85 Static elimination unit 86 Brush motor 101 First cleaning unit 102 Rotating drive unit 103 Dust removal performance deterioration judgment unit 104 Flow generator 105 Notification Part 106 Second cleaning part

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  • Electrostatic Separation (AREA)
PCT/JP2019/022862 2019-06-10 2019-06-10 集塵装置 WO2020250265A1 (ja)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58128644U (ja) * 1982-02-24 1983-08-31 トヨタ自動車株式会社 電気集塵装置
JPS61227860A (ja) * 1985-03-29 1986-10-09 Matsushita Seiko Co Ltd 空気清浄機における集塵装置
JP2006334084A (ja) * 2005-06-01 2006-12-14 Toshiba Tec Corp 電気掃除機用吸込口体
JP2017060917A (ja) * 2015-09-24 2017-03-30 アマノ株式会社 電気集塵機

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN207056789U (zh) * 2017-06-07 2018-03-02 国统电器科技（惠州）有限公司 一种涡卷式静电集尘结构

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58128644U (ja) * 1982-02-24 1983-08-31 トヨタ自動車株式会社 電気集塵装置
JPS61227860A (ja) * 1985-03-29 1986-10-09 Matsushita Seiko Co Ltd 空気清浄機における集塵装置
JP2006334084A (ja) * 2005-06-01 2006-12-14 Toshiba Tec Corp 電気掃除機用吸込口体
JP2017060917A (ja) * 2015-09-24 2017-03-30 アマノ株式会社 電気集塵機

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