WO2017090086A1 - 放電デバイス及びこれを備えた空気調和装置 - Google Patents
放電デバイス及びこれを備えた空気調和装置 Download PDFInfo
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- WO2017090086A1 WO2017090086A1 PCT/JP2015/082901 JP2015082901W WO2017090086A1 WO 2017090086 A1 WO2017090086 A1 WO 2017090086A1 JP 2015082901 W JP2015082901 W JP 2015082901W WO 2017090086 A1 WO2017090086 A1 WO 2017090086A1
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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
- B03C3/40—Electrode constructions
- B03C3/41—Ionising-electrodes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L9/00—Disinfection, sterilisation or deodorisation of air
- A61L9/16—Disinfection, sterilisation or deodorisation of air using physical phenomena
- A61L9/22—Ionisation
-
- 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
- B03C3/017—Combinations of electrostatic separation with other processes, not otherwise provided for
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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
- B03C3/40—Electrode constructions
- B03C3/60—Use of special materials other than liquids
- B03C3/64—Use of special materials other than liquids synthetic resins
-
- 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
- B03C3/66—Applications of electricity supply techniques
- B03C3/68—Control systems therefor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/28—Arrangement or mounting of filters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- 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
- F24F8/192—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 by electrical means, e.g. by applying electrostatic fields or high voltages
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2209/00—Aspects relating to disinfection, sterilisation or deodorisation of air
- A61L2209/10—Apparatus features
- A61L2209/11—Apparatus for controlling air treatment
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2209/00—Aspects relating to disinfection, sterilisation or deodorisation of air
- A61L2209/10—Apparatus features
- A61L2209/14—Filtering means
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- 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
Definitions
- the present invention relates to a discharge device that discharges to clean air, and an air conditioner including the discharge device.
- the electric discharge type air cleaning device of the prior art includes a charging unit that applies a charge to particles such as dust, and a dust collection unit that collects the particles to which the charge is applied.
- the charging unit includes a high voltage electrode and a ground electrode that face each other. The high voltage electrode discharges when a high voltage is applied, and the ground electrode is grounded.
- the dust collecting part similarly includes a high voltage electrode and a ground electrode.
- the entire device is reduced in weight by forming each electrode using a conductive resin.
- the actual voltage may not follow the voltage control due to the resistance value.
- the electric field strength between the high voltage electrode and the ground electrode is insufficient and the dust collection performance is deteriorated.
- the present invention has been made to solve the above-described problems, and a discharge device capable of removing charges accumulated in an electrode and resetting a voltage necessary for discharge, and an air conditioner including the discharge device The purpose is to provide.
- a discharge device includes a discharge electrode for generating discharge, a counter electrode that is disposed to face the discharge electrode, and is formed of a conductive resin having a volume resistivity of 10 7 ⁇ ⁇ cm or less, A high-voltage power supply that applies an output voltage between the discharge electrode and the counter electrode, and a function that controls the output voltage of the high-voltage power supply, and a discharge is generated between the discharge electrode and the counter electrode by the high-voltage power supply. And a control means for executing a discharge mode and a voltage reduction mode for temporarily reducing the output voltage of the high-voltage power supply to a voltage that does not cause a discharge between the discharge electrode and the counter electrode.
- Embodiment 1 of this invention It is sectional drawing which shows the indoor unit of the air conditioning apparatus by Embodiment 1 of this invention. It is a disassembled perspective view which shows the discharge device by Embodiment 1 of this invention. It is a schematic diagram which shows the structural example of a discharge device. It is a block diagram of the control part by Embodiment 1 of this invention. In Embodiment 1 of this invention, it is a characteristic diagram which shows an example of mode switching control.
- Embodiment 1 FIG.
- common elements are denoted by the same reference numerals, and redundant description is omitted.
- the present invention is not limited to the following embodiments, and can be variously modified without departing from the gist of the present invention.
- FIG. 1 is a cross-sectional view showing an indoor unit of an air-conditioning apparatus according to Embodiment 1 of the present invention.
- the air conditioner includes an indoor unit 1 that is disposed indoors and performs air conditioning, and an outdoor unit (not shown) that is disposed outdoors and performs heat exchange with the indoor unit 1.
- FIG. 1 is a cross-sectional view showing a state in which the indoor unit 1 is broken along a plane perpendicular to the rotation axis of the blower fan 5.
- the indoor unit 1 includes an air inlet port 2, an air outlet port 3, a heat exchanger 4, a blower fan 5, a left and right wind direction plate 6, a vertical wind direction plate 7, a front panel 8, a discharge device 9 and the like. I have.
- the heat exchanger 4, the blower fan 5, and the discharge device 9 are accommodated in a housing 1 ⁇ / b> A that constitutes the outline of the indoor unit 1.
- the air suction port 2 is an opening for sucking indoor air into the housing 1A, and is disposed, for example, on the upper side of the housing 1A.
- the air outlet 3 is an opening for blowing air from the housing 1A into the room, and is disposed, for example, on the lower side of the housing 1A.
- the heat exchanger 4 cools and heats the air sucked from the air suction port 2.
- the blower fan 5 sucks air from the air inlet 2 and blows air that has passed through the heat exchanger 4 toward the air outlet 3.
- the left and right wind direction plates 6 are disposed at the air outlet 3 and adjust the direction of the air blown from the air outlet 3 (blow angle) to the left and right direction of the indoor unit 1.
- the vertical wind direction plate 7 adjusts the air blowing angle in the vertical direction of the indoor unit 1.
- the left-right direction of the indoor unit 1 is a direction perpendicular to the paper surface of FIG. 1, and the up-down direction of the indoor unit 1 is the up-down direction of FIG.
- the up-and-down wind direction board 7 is arrange
- the front panel 8 constitutes the front portion of the housing 1A.
- the discharge device 9 collects particles such as dust contained in the air by electrostatic force, and cleans the air.
- the discharge device 9 is disposed on the upstream side (windward side) of the heat exchanger 4 in the flow of air flowing from the air inlet 2 toward the air outlet 3.
- the discharge device of the present invention is not necessarily limited to an apparatus that collects particles such as dust, but includes various discharge-type air cleaning devices that discharge into the air in order to clean the air.
- the discharge device decomposes and inactivates contaminants such as particles floating in the air, smoke, pollen, viruses, molds, fungi, allergens, odorous substances, ions, radicals, etc. by discharge. It may be a device.
- FIG. 2 is an exploded perspective view showing the discharge device according to the first embodiment of the present invention.
- the X-axis direction corresponds to the left-right direction of the indoor unit 1
- the Y-axis direction corresponds to the front-rear direction of the indoor unit 1 (left-right direction in FIG. 1).
- the upper side in the Z-axis direction corresponds to the upwind direction of the air flowing inside the indoor unit 1.
- FIG. 3 is a schematic diagram illustrating a configuration example of the discharge device. This figure is intended to schematically show the arrangement and connection of the electrodes of the discharge device 9. Therefore, in FIG. 3, illustration of some components is abbreviate
- the discharge device 9 includes an upper frame 10, a lower frame 11, a discharge electrode 12, a spring 13, a power supply unit 14, electrode support units 15 and 16, a counter electrode 17, a dust collection unit 18, A control unit 30, a high voltage power supply 40, and the like are provided.
- the upper frame 10 constitutes a portion of the discharge device 9 that is disposed on the most windward side.
- the lower frame 11 constitutes a portion of the discharge device 9 that is disposed on the most leeward side.
- These frames 10 and 11 are, for example, entirely formed of a resin material, and extend parallel to the X-axis direction while facing each other in the Z-axis direction.
- the upper frame 10 is formed with a plurality of openings for taking outside air into the discharge device 9. Each opening is separated in a grid pattern so that a human finger or the like does not enter the discharge device 9 from the opening.
- a plurality of openings are arranged side by side on the upper surface of the upper frame 10, for example, in the X-axis direction (width direction) and the Y-axis direction (front-rear direction).
- the lower frame 11 is formed with a plurality of openings arranged in a lattice pattern.
- the discharge electrode 12 is formed, for example, by folding an intermediate portion of a long metal plate about 1 to 4 times, and extends in the X-axis direction.
- FIG. 2 illustrates the U-shaped discharge electrode 12 formed by turning the metal plate once. Ring-shaped terminals are respectively attached to both ends of the discharge electrode 12.
- a metal material such as tungsten, copper, nickel, stainless steel, zinc, iron, molybdenum, or an alloy containing these metal materials as a main component.
- the discharge electrode 12 may be formed by plating a noble metal such as silver, gold, or platinum on the surface of the metal material, or generating a carbon (graphite) layer, an oxide film, or the like.
- the cross-sectional shape of the discharge electrode 12 is formed, for example, in a flat rectangular shape having a long side and a short side.
- the length of the long side in this cross-sectional shape is, for example, about 0.1 to 1.0 mm, and the length of the short side is, for example, about 0.01 to 0.1 mm.
- the spring 13 is a member for applying tension to the discharge electrode 12 and is formed of a metal material.
- the spring 13 is connected to terminals on both sides of the discharge electrode 12.
- the discharge electrode 12 is attached to the power supply unit 14 while being pulled in the longitudinal direction by the spring 13, and is electrically connected to the power supply unit 14.
- the power feeding unit 14 is a member for applying a voltage output from the high voltage power supply 40 to the discharge electrode 12 and the high voltage electrode 19 and is made of a conductive material such as metal.
- the discharge electrode 12 and the high voltage electrode 19 may be connected to different power supply members, and the voltage applied to the discharge electrode 12 and the high voltage electrode 19 may be individually controlled.
- the electrode support portions 15 and 16 support the discharge electrode 12 inside the discharge device 9, and are entirely formed of a resin material, for example.
- the electrode support portion 15 is attached to one end side in the length direction (X-axis direction) of the lower frame 11.
- the electrode support part 16 is attached to the other end side of the length direction of the upper frame 10, for example. In this state, the electrode support portions 15 and 16 are configured to support both end sides of the discharge electrode 12.
- the electrode support portions 15 and 16 include a member for supporting the discharge electrode 12 in a folded state, a member for holding the discharge electrode 12 in an appropriate position, and the like.
- the counter electrode 17 is an electrode that makes a pair with the discharge electrode 12, and is formed in a long and thin flat plate shape with a conductive resin, for example.
- the counter electrode 17 includes, for example, three electrode plates as shown in FIG. These electrode plates extend in the X-axis direction and are spaced from each other in the Y-axis direction.
- the discharge electrode 12 is disposed with a gap between the electrode plates of the counter electrode 17.
- the discharge electrode 12 and the counter electrode 17 are configured to face each other in the Y-axis direction.
- the counter electrode 17 is integrally formed with a ground electrode 20 described later using a conductive resin having a volume resistivity of 10 7 ⁇ ⁇ cm or less, for example.
- the conductive resin is generally defined as a resin having a volume resistivity of 10 7 ⁇ ⁇ cm or less.
- Such a conductive resin is formed, for example, by blending a base material with a conductive material such as carbon black, carbon fiber, conductive whisker, or metal fiber. Further, the counter electrode 17 and the ground electrode 20 are grounded via the grounding power supply unit 21.
- the dust collecting unit 18 collects dust or the like charged (charged) by passing between the discharge electrode 12 and the counter electrode 17, and includes a high voltage electrode 19 and a ground electrode 20. ing. An output voltage of the high voltage power supply 40 is applied between the high voltage electrode 19 and the ground electrode 20.
- the high voltage electrode 19 includes, for example, a plurality of electrode pieces arranged at regular intervals in the X-axis direction. Each electrode piece constituting the high-voltage electrode 19 protrudes toward the counter electrode 17 in the Z-axis direction, for example, and extends parallel to the Y-axis direction.
- the high voltage electrode 19 is formed using a semiconductive resin having a volume resistance value lower than that of the counter electrode 17 and the ground electrode 20, for example. As an example, this semiconductive resin has a volume resistance value of about 10 8 to 10 13 ⁇ ⁇ cm.
- the high voltage electrode 19 is electrically connected to the power feeding unit 14.
- the ground electrode 20 is an electrode paired with the high voltage electrode 19 and is integrally formed with the counter electrode 17 using the conductive resin described above.
- the ground electrode 20 includes, for example, a plurality of electrode pieces arranged at regular intervals in the X-axis direction. Each electrode piece constituting the ground electrode 20 extends in parallel to the Y-axis direction while projecting toward the high-voltage electrode 19 in the Z-axis direction, for example.
- the discharge device 9 is assembled, as shown in FIG. 3, the high voltage electrodes 19 and the ground electrodes 20 are alternately arranged so that the electrode pieces are engaged with each other, and held in a state facing each other in the X-axis direction. Is done.
- the counter electrode 17, the high voltage electrode 19, and the ground electrode 20 from a resin material, the weight reduction of the entire discharge device 9 is promoted, and the processing of the electrodes 17, 19, 20 is simplified. Can do. Further, in the case of a metal electrode, since pressing and bending are required, the degree of freedom of the electrode shape is low, whereas according to the present embodiment, the electrode shape of each of the electrodes 17, 19, and 20 The degree of freedom can be improved. Moreover, since the counter electrode 17 and the ground electrode 20 are integrally formed, the structure of the entire electrode can be simplified, and further reduction in size and weight of the discharge device 9 can be promoted. In addition, since the resin electrode has a higher charge holding power than the metal electrode, the distance between the electrodes can be narrowed. Thereby, the electric field strength between electrodes can be strengthened and dust collection ability can be improved.
- the control unit 30 as a control unit that controls the operation of the high voltage power supply 40 will be described.
- the control unit 30 includes a microcomputer or the like, and includes a processor 30A and a memory 30B as shown in FIG.
- the function of the control unit 30 is achieved by the processor 30A executing a program stored in the memory 30B.
- the control unit 30 may also be used as a control device that controls the operation of the air conditioner, or may be a dedicated control device that controls the operation of only the high-voltage power supply 40.
- the control unit 30 may be configured by a separate component from the high voltage power supply 40 or may be an integrated control circuit built in the high voltage power supply 40.
- FIG. 4 is a block diagram of a control unit according to Embodiment 1 of the present invention.
- the control unit 30 is communicably connected to the high voltage power supply 40, and includes a voltage control unit 31, a voltage determination unit 32, a mode switching unit 33, and the like.
- the voltage control unit 31 controls the output voltage of the high voltage power supply 40 so that the discharge current generated between the discharge electrode 12 and the counter electrode 17 has a constant current value.
- the voltage determination unit 32 compares the output voltage of the high voltage power supply 40 (that is, the voltage applied to the discharge electrode 12 and the high voltage electrode 19) with a preset trigger voltage A described later, and the comparison result is obtained. This is output to the mode switching unit 33.
- the mode switching unit 33 switches the operation mode of the discharge device 9 between a discharge mode and a voltage drop mode, which will be described later, based on the determination result of the voltage determination unit 32 and the like.
- discharge mode Next, the operation of the discharge device 9 will be described with reference to FIG. First, in the initial state, it is assumed that the discharge device 9 is in the discharge mode. In the discharge mode, the output voltage of the high voltage power supply 40 is applied to the discharge electrode 12 and the high voltage electrode 19. Thereby, a discharge current is generated between the discharge electrode 12 and the counter electrode 17 in accordance with the output voltage, and an electric field having a prescribed strength is generated.
- the voltage control unit 31 holds the discharge current between the electrodes 12 and 17 at a constant current value by controlling the output voltage of the high voltage power supply 40.
- the air passing through the discharge device 9 first passes between the discharge electrode 12 and the counter electrode 17.
- particulate matter such as dust, bacteria, mold, virus, pollen, and allergen substance floating in the air is charged by the discharge between the electrodes 12 and 17 and the electric field.
- the charged particulate matter passes between the high voltage electrode 19 and the ground electrode 20 of the dust collecting unit 18 together with air. Since the output voltage of the high-voltage power supply 40 is applied to the high-voltage electrode 19 similarly to the discharge electrode 12, an electric field having a prescribed strength is generated between the high-voltage electrode 19 and the ground electrode 20. Has been. As a result, the particulate matter in a charged state is attached to the ground electrode 20 by receiving a large Coulomb force when passing between the high voltage electrode 19 and the ground electrode 20. Therefore, the particulate matter is collected by the dust collecting unit 18 and removed from the air.
- the voltage controller 31 can maintain the specified discharge current by increasing the output voltage of the high voltage power supply 40.
- the high voltage power supply 40 generally has an upper limit value of the output voltage. When the output voltage reaches the upper limit value, the output of the voltage is forcibly stopped by the safety device, and the recovery mode may be entered. In this case, there is a problem that the performance of the discharge device 9 cannot be obtained during the recovery mode.
- the dust collecting section 18 since the high voltage electrode 19 has a high volume resistance value, even if the output voltage of the high voltage power supply 40 is raised, the followability of the voltage with respect to the output voltage is not good. As a result, between the high voltage electrode 19 and the ground electrode 20, the voltage between the electrodes 19 and 20 cannot sufficiently follow the output voltage of the high voltage power supply 40, so that the electric field strength is reduced and dust collection is performed. Performance may be degraded.
- FIG. 5 is a characteristic diagram showing an example of mode switching control in the first embodiment of the present invention.
- the thick line in this figure indicates the output voltage of the high voltage power supply 40 controlled by the voltage control unit 31, and the dotted line indicates the dust collection efficiency of the particulate matter by the dust collection unit 18.
- the dust collection efficiency can be calculated based on, for example, the difference in the number of particulate substances measured on the upstream side and the downstream side of the discharge device 9, for example.
- the mode switching control first, when the output voltage of the high-voltage power supply 40 is less than a specified voltage (trigger voltage A), the above-described discharge mode is executed.
- a specified voltage Trigger voltage A
- the above-described discharge mode is executed.
- the discharge mode electric charges accumulate in the counter electrode 17 due to discharge, and the electric field and discharge current between the discharge electrode 12 and the counter electrode 17 decrease. For this reason, for example, as shown on the left side of FIG. 5, the voltage control unit 31 increases the output voltage of the high-voltage power supply 40 to supplement the discharge current as the duration of the discharge mode becomes longer.
- the voltage determination unit 32 determines whether or not the output voltage of the high voltage power supply 40 has reached the trigger voltage A during the discharge mode. If the determination is established, the determination result is output to the mode switching unit 33. Thereby, the mode switching unit 33 outputs a signal corresponding to the voltage reduction mode to the voltage control unit 31, and switches the operation mode of the discharge device 9 from the discharge mode to the voltage reduction mode.
- the voltage control unit 31 stops outputting the voltage from the high voltage power supply 40, and the discharge device 9 shifts to the voltage reduction mode.
- the high voltage power supply 40 has a preset output upper limit value, and is configured to stop voltage output when the output voltage reaches the output upper limit value.
- the trigger voltage A is a voltage value lower than the output upper limit value, and is set to a voltage value at which charges are easily accumulated in the counter electrode 17. Thereby, in a situation where electric charges are accumulated in the counter electrode 17, the voltage drop mode can be surely executed.
- the output voltage of the high voltage power supply 40 is temporarily reduced, and the output voltage is held at a voltage value lower than the lowest discharge voltage B shown in FIG.
- the minimum discharge voltage B is the minimum voltage value at which discharge occurs between the discharge electrode 12 and the counter electrode 17. That is, the output voltage realized by the voltage drop mode is set equal to or lower than the maximum value of the voltage at which no discharge occurs between the electrodes 12 and 17. Therefore, during the voltage drop mode, the discharge between the electrodes 12 and 17 is stopped. Thus, in the voltage drop mode, the discharge can be stopped, so that it is possible to avoid supplying new charges to the counter electrode 17 and the ground electrode 20 due to the discharge.
- produced in the electrodes 17 and 20 can be eliminated, and the accumulated electric charge can be removed. That is, the electric field strength between the ground electrode 20 integrally formed with the counter electrode 17 and the high voltage electrode 19 can be initialized, and the dust collection performance of the dust collection unit 18 can be recovered.
- the mode switching unit 33 outputs a signal corresponding to the discharge mode to the voltage control unit 31 when, for example, the elapsed time after shifting to the voltage decrease mode reaches a specified voltage decrease time, and the discharge device 9 The operation mode is switched from the voltage drop mode to the discharge mode.
- the voltage control unit 31 permits the voltage output by the high voltage power supply 40, and the discharge device 9 returns to the discharge mode.
- the voltage drop time which is the time during which the voltage drop mode is continued, is set in advance according to, for example, the resistance value or charge relaxation time of the conductive resin forming the counter electrode 17 and the ground electrode 20. Is preferred.
- the voltage drop time can be appropriately set in accordance with the minimum time required for removing the potential and charge from the counter electrode 17 and the ground electrode 20. Therefore, the duration of the voltage drop mode, that is, the stop time of the discharge device 9 can be shortened as much as possible, and the dust collection performance can be recovered early while stably removing the potential of the counter electrode 17. .
- the present invention is not limited to this, and in the voltage drop mode, for example, the output potential (polarity) of the high voltage power supply 40 may be reversed with respect to the discharge mode. Also with this configuration, the same effect as in the first embodiment can be obtained.
- the charges accumulated in the counter electrode 17 and the ground electrode 20 can be smoothly removed by the voltage drop mode. Thereby, the voltage required for discharge can be reset. Therefore, as described above, it is possible to avoid that the output voltage of the high voltage power supply 40 reaches the upper limit value and the output of the voltage is forcibly stopped, and the discharge device 9 can be stably operated. That is, in the present embodiment, the voltage can be lowered by the voltage drop mode before entering the recovery mode by forcibly stopping the high voltage power supply 40. As a result, the time during which the discharge is stopped in the recovery mode (that is, the performance stop time of the discharge device 9) can be shortened.
- the dust collection performance of the dust collection part 18 is recoverable by resetting the voltage required for discharge.
- the dust collection performance of the discharge device 9 and the air conditioner can be improved.
- the discharge device 9 comprised in this way, and an air conditioning apparatus provided with the same are mounted in apparatuses, such as various air conditioning apparatuses, an air cleaner, an air blower, etc. installed in a living room, an office, a store, etc., for example. Or by providing a fan in an elevator, a duct or the like.
- the discharge device 9 including the dust collection unit 18 has been described as an example.
- the present invention is not limited to this, and can also be applied to a discharge device that does not include the dust collection unit 18. Even in this case, it can be avoided that the output voltage of the high voltage power supply reaches the upper limit value and the output of the voltage is forcibly stopped, so that the above-described effects can be obtained.
- 1 indoor unit 1A housing, 2 air inlet, 3 air outlet, 4 heat exchanger, 5 blower fan, 6 left and right wind direction plate, 7 vertical air direction plate, 8 front panel, 9 discharge device, 10 upper frame, 11 lower Frame, 12 discharge electrode, 13 spring, 14 power supply unit, 15, 16 electrode support unit, 17 counter electrode, 18 dust collection unit, 19 high voltage electrode, 20 ground electrode, 21 grounding power supply unit, 30 control unit (control means ), 30A processor, 30B memory, 31 voltage control unit, 32 voltage determination unit, 33 mode switching unit, 40 high voltage power supply
Abstract
Description
以下、図1から図5を参照して、本発明の実施の形態1について説明する。なお、本明細書で使用する各図においては、共通する要素に同一の符号を付し、重複する説明を省略するものとする。また、本発明は、以下の実施の形態に限定されるものではなく、本発明の主旨を逸脱しない範囲で種々に変形することが可能である。
次に、図1を参照して、空気調和装置の動作について説明する。まず、空気調和装置の作動時には、熱交換器4、送風ファン5及び放電デバイス9が駆動される。送風ファン5が作動すると、室内の空気が空気吸込口2から吸込まれ、室内機1の内部に空気流が生成される。この結果、吸込まれた空気は、放電デバイス9を通過することにより清浄化された後に、熱交換器4を通過することにより冷却または加熱される。熱交換器4を通過した空気は、送風ファン5、左右風向板6及び上下風向板7の位置を順次通過し、空気吹出口3から室内に送風される。これにより、室内の空調を行うことができる。
次に、図3を参照して、放電デバイス9の動作について説明する。まず、最初の状態では、放電デバイス9が放電モードであるものとする。放電モードでは、高電圧電源40の出力電圧が放電電極12及び高電圧電極19に印加される。これにより、放電電極12と対向電極17との間には、出力電圧に応じて放電電流が発生し、規定の強度を有する電界が生成される。
電圧判定部32は、放電モード中において、高電圧電源40の出力電圧がトリガー電圧Aに到達したか否かを判定する。そして、当該判定が成立した場合には、判定結果をモード切換部33に出力する。これにより、モード切換部33は、電圧低下モードに対応する信号を電圧制御部31に出力し、放電デバイス9の動作モードを放電モードから電圧低下モードに切換える。
Claims (6)
- 放電を発生させるための放電電極と、
前記放電電極と対向して配置され、107Ω・cm以下の体積抵抗率を有する導電性樹脂により形成された対向電極と、
前記放電電極と前記対向電極との間に出力電圧を印加する高電圧電源と、
前記高電圧電源の出力電圧を制御する機能を有し、前記高電圧電源により前記放電電極と前記対向電極との間に放電を発生させる放電モードと、前記高電圧電源の出力電圧を前記放電電極と前記対向電極との間に放電が発生しない電圧以下まで一時的に低下させる電圧低下モードとを実行する制御手段と、
を備えた放電デバイス。 - 前記放電電極と前記対向電極との間を通過することで荷電された塵埃を捕集するための集塵部を備え、
前記集塵部は、
高電圧電極と、
前記導電性樹脂により前記対向電極と一体成形され、前記高電圧電極と対向して配置された接地電極と、を備え、
前記高電圧電源の出力電圧を前記高電圧電極と前記接地電極との間に印加する構成とした請求項1に記載の放電デバイス。 - 前記制御手段は、前記高電圧電源の出力電圧が規定の電圧まで上昇したときに、前記電圧低下モードに移行する請求項1または2に記載の放電デバイス。
- 前記制御手段は、前記電圧低下モードを規定の時間継続した後に、放電モードに復帰する構成とし、前記電圧低下モードが継続される時間は、前記導電性樹脂の抵抗値に応じて設定する請求項1から3のうち何れか1項に記載の放電デバイス。
- 前記放電電極の断面形状は、互いに長さが異なる長辺と短辺とを有する扁平な形状に形成した請求項1から4のうち何れか1項に記載の放電デバイス。
- 請求項1から5のうち何れか1項に記載の放電デバイスを備えた空気調和装置。
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JP2017552559A JP6508356B2 (ja) | 2015-11-24 | 2015-11-24 | 放電デバイス及びこれを備えた空気調和装置 |
DE112015007142.3T DE112015007142B4 (de) | 2015-11-24 | 2015-11-24 | Entladevorrichtung und mit dieser ausgestattetes Klimagerät |
SE1850554A SE542942C2 (en) | 2015-11-24 | 2015-11-24 | Discharge device and air-conditioning device equipped with same |
PCT/JP2015/082901 WO2017090086A1 (ja) | 2015-11-24 | 2015-11-24 | 放電デバイス及びこれを備えた空気調和装置 |
RU2018122080A RU2686883C1 (ru) | 2015-11-24 | 2015-11-24 | Разрядное устройство и оснащенное им устройство кондиционирования воздуха |
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Cited By (1)
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CN109579145A (zh) * | 2018-11-28 | 2019-04-05 | 云森威尔智能环境(深圳)有限公司 | 一种新型鲜风空调室内机 |
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- 2015-11-24 SE SE1850554A patent/SE542942C2/en unknown
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- 2015-11-24 RU RU2018122080A patent/RU2686883C1/ru active
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CN109579145A (zh) * | 2018-11-28 | 2019-04-05 | 云森威尔智能环境(深圳)有限公司 | 一种新型鲜风空调室内机 |
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JP6508356B2 (ja) | 2019-05-08 |
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SE1850554A1 (en) | 2018-05-14 |
DE112015007142T5 (de) | 2018-08-02 |
SE542942C2 (en) | 2020-09-15 |
RU2686883C1 (ru) | 2019-05-06 |
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