WO2021009946A1 - 空調機 - Google Patents

空調機 Download PDF

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Publication number
WO2021009946A1
WO2021009946A1 PCT/JP2020/002282 JP2020002282W WO2021009946A1 WO 2021009946 A1 WO2021009946 A1 WO 2021009946A1 JP 2020002282 W JP2020002282 W JP 2020002282W WO 2021009946 A1 WO2021009946 A1 WO 2021009946A1
Authority
WO
WIPO (PCT)
Prior art keywords
air
flow path
heat exchanger
suction
heat
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/JP2020/002282
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
雄治 坂野
吉田　茂樹
昌志 市橋
直勝 大澤
学 白井
飯島　竜太
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Brother Industries Ltd
Original Assignee
Brother Industries Ltd
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 Brother Industries Ltd filed Critical Brother Industries Ltd
Priority to ES20839809T priority Critical patent/ES3053160T3/es
Priority to EP20839809.9A priority patent/EP3988853B1/en
Priority to CN202080051195.6A priority patent/CN114127482B/zh
Publication of WO2021009946A1 publication Critical patent/WO2021009946A1/ja
Priority to US17/573,463 priority patent/US12408302B2/en
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/2039—Modifications to facilitate cooling, ventilating, or heating characterised by the heat transfer by conduction from the heat generating element to a dissipating body
    • 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
    • F24F1/0087—Indoor units, e.g. fan coil units with humidification means
    • 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
    • F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • F24F1/20—Electric components for separate outdoor units
    • F24F1/24—Cooling of electric components
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
    • F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
    • F24F5/0035—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning using evaporation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F6/00—Air-humidification, e.g. cooling by humidification
    • F24F6/02—Air-humidification, e.g. cooling by humidification by evaporation of water in the air
    • F24F6/04—Air-humidification, e.g. cooling by humidification by evaporation of water in the air using stationary unheated wet elements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60H—ARRANGEMENTS OF HEATING, COOLING, VENTILATING OR OTHER AIR-TREATING DEVICES SPECIALLY ADAPTED FOR PASSENGER OR GOODS SPACES OF VEHICLES
    • B60H1/00—Heating, cooling or ventilating devices
    • B60H1/00507—Details, e.g. mounting arrangements, desaeration devices
    • B60H2001/00614—Cooling of electronic units in air stream
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F6/00—Air-humidification, e.g. cooling by humidification
    • F24F6/02—Air-humidification, e.g. cooling by humidification by evaporation of water in the air
    • F24F6/04—Air-humidification, e.g. cooling by humidification by evaporation of water in the air using stationary unheated wet elements
    • F24F2006/046—Air-humidification, e.g. cooling by humidification by evaporation of water in the air using stationary unheated wet elements with a water pump
    • 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]
    • Y02B30/54—Free-cooling systems

Definitions

  • the present invention relates to an air conditioner.
  • Patent Document 1 There is known a vaporization-cooled air conditioner that sucks in indoor air and uses the heat of vaporization of water to lower the atmospheric temperature and blows out the cooled air into the room (for example, Patent Document 1).
  • the air conditioner (cold air fan) of Patent Document 1 communicates the air blowing means arranged in the casing with the suction port and the first air outlet, and guides the air flow generated by the air blowing means to the first air outlet. It is arranged in the second flow path and the second flow path that communicate the flow path, the suction port and the second air outlet, and guide the air flow generated by the air blowing means to the second air outlet, and is the second by the heat of vaporization of water.
  • a heat exchanger includes a vaporizing means for cooling the air flowing through the two flow paths and exchanges heat between the air flow cooled by the vaporizing means of the second flow path and the air flow flowing through the first flow path.
  • a vaporizing means for cooling the air flowing through the two flow paths and exchanges heat between the air flow cooled by the vaporizing means of the second flow path and the air flow flowing through the first flow path.
  • Air with increased absolute humidity flows.
  • the air with increased humidity is blown out as exhaust from the second outlet, which is the outlet of the second flow path.
  • the air flow flowing through the first flow path cooled through the heat exchanger is blown out from the first outlet to the air-conditioned space as air supply.
  • the present invention has been made in view of such circumstances, and an object of the present invention is to provide an air conditioner that is mounted on a self-machine and can efficiently cool an electric device that generates heat due to power consumption.
  • the air conditioner according to one aspect of the present disclosure includes a suction flow path through which air sucked from a suction port flows, a spraying portion for spraying vaporized water, and the like. Heat exchange is performed between the first flow path through which the first air cooled by the heat of vaporization of the water sprayed by the spraying portion flows, the first air, and the air flowing through the suction flow path, and the suction flow path is used.
  • a heat exchanger that cools the air flowing through Equipped with an electric device that generates heat as the power is consumed by the own machine
  • the electric device is thermally connected to a wall body constituting the first flow path on the downstream side of the heat exchanger in the flow direction of the first air.
  • the first air is cooled by the heat of vaporization of the water sprayed by the spraying portion, and then exchanges heat with the air sucked from the suction port in the heat exchanger.
  • the wall body forming the first flow path located on the downstream side of the heat exchanger and the electric device are thermally connected. Since the first air is lower than the room temperature of the air-conditioned space where the air conditioner is installed even after heat exchange with the air sucked from the suction port, the first air efficiently makes the electric device. Can be cooled. The temperature of the first air rises due to the heat generated by the electric device, and the saturated water vapor pressure and the saturated water vapor amount of the first air rise.
  • the absolute humidity of the first air increases as the water sprayed by the spraying part evaporates, but the saturated water vapor pressure rises due to the heat generated by the electrical device, so it is located downstream of the heat exchanger. It is possible to suppress the occurrence of dew condensation in the first flow path.
  • At least a part of the first flow path on the downstream side of the heat exchanger in the flow direction of the first air is between the heat exchanger and the electric device. Is formed in.
  • the first air flowing through the first flow path is heat. It functions as a heat insulating material that is interposed between the exchanger and the electric device. Therefore, the influence of heat generated by the electric device on the heat exchanger can be reduced.
  • the air conditioner according to one aspect of the present disclosure suppresses heat transfer between the first flow path on the downstream side of the heat exchanger in the flow direction of the first air and the heat exchanger.
  • a heat transfer suppressing member is provided.
  • the heat exchanger since a heat transfer suppressing member for suppressing heat transfer is provided between the first flow path located on the downstream side of the heat exchanger and the heat exchanger, the heat exchanger is defined. The influence of heat generation of the electric device can be further reduced.
  • the wall body of the air conditioner according to one aspect of the present disclosure includes a heat transfer promoting member that promotes heat transfer.
  • the first flow path is provided.
  • the flowing first air can cool the electrical device more efficiently.
  • the first flow path on the downstream side of the heat exchanger includes a turning point that turns back from the bottom to the top.
  • the electric device is thermally connected to the wall body constituting the first flow path on the downstream side of the turning point in the flow direction of the first air.
  • the first flow path located on the downstream side of the heat exchanger includes a turning point that turns back from the bottom to the top, unevaporated water flows into the first flow path beyond the turning point. This can be suppressed and the influence of the unevaporated water on the electric device can be prevented.
  • the air conditioner according to one aspect of the present disclosure is provided with a drain pan for collecting water dripping from the heat exchanger at the turning point.
  • the drain pan that collects the water dripping from the heat exchanger is provided at the turning point, the mist that collects the dripping water and flows together with the first air that folds back at the turning point.
  • the water can be centrifuged and collected in a drain pan.
  • the electric device includes a storage battery for supplying electric power to the own unit.
  • the electric device since the electric device includes a storage battery for supplying electric power to the own unit, the storage battery can be cooled by the first air through the wall body constituting the first flow path.
  • the electric device includes an electric component that generates less heat than the storage battery.
  • the storage battery and the electric component are provided along the first flow path on the downstream side of the heat exchanger.
  • the storage battery is located downstream of the electric component in the flow direction of the first air.
  • the storage battery and the electric component are provided along the first flow path located on the downstream side of the heat exchanger, that is, arranged side by side adjacent to the wall body constituting the first flow path.
  • the storage battery is located downstream of the electric component in the flow direction of the first air.
  • the storage battery Since the storage battery is located downstream of the electrical component, the first air passes through the portion of the wall closest to the electrical component and then through the portion of the wall closest to the storage battery. Therefore, first, the electric component having a small calorific value is cooled by the first air, and then the storage battery having a calorific value higher than that of the electric component is cooled, so that the electric device including the storage battery and the electric component can be efficiently cooled. it can.
  • FIG. It is a schematic side sectional view which shows one structural example of the air conditioner which concerns on Embodiment 1.
  • FIG. It is a perspective view which shows the appearance of an air conditioner. It is explanatory drawing about the 1st flow path downstream of a sensible heat exchanger and an electric device. It is explanatory drawing about the 1st flow path and electric apparatus which concerns on Embodiment 2. FIG. It is explanatory drawing about the 1st flow path and an electric device which concerns on Embodiment 3.
  • FIG. 1 is a schematic side sectional view showing a configuration example of the air conditioner 1 according to the first embodiment.
  • FIG. 2 is a perspective view showing the appearance of the air conditioner 1.
  • the air conditioner 1 is provided with a box-shaped housing 15, and is placed on the floor surface of an air-conditioned space such as a factory by means of casters 151 provided at the bottom of the housing 15.
  • the mounted state of the air conditioner 1 shown in FIG. 1 is shown vertically and horizontally as a normal usage mode of the air conditioner 1.
  • FIG. 1 is a schematic view of a cross section taken along the line AA in FIG. 2 from the left side on FIG.
  • the air conditioner 1 includes a heat exchanger 2 and a spraying unit 16, and uses the heat of vaporization of the sprayed water sprayed from the spraying unit 16 to lower the atmospheric temperature and cool the air-conditioned space. For example, indirect vaporization. It is a cooling type air conditioner 1.
  • the housing 15 of the air conditioner 1 is provided via a suction port 51 for sucking air in the air-conditioned space, a first outlet 31 for blowing out air directly cooled by the heat of vaporization of the sprayed water, and a heat exchanger 2.
  • a second outlet 41 is provided, which is cooled by exchanging heat with the first air and blows out air for cooling the air-conditioned space into the air-conditioned space.
  • the first air is synonymous with exhaust, and the second air is synonymous with supply air.
  • the first outlet 31 corresponds to an exhaust outlet, and the second outlet 41 corresponds to an air supply / suction outlet.
  • the air conditioner 1 has a first flow path 3 through which first air that is directly cooled by the heat of vaporization of the spray water sprayed from the spray unit 16 flows, and a first flow channel 3 that is sucked from the suction port 51 and cooled.
  • a suction flow path 5 through which air cooled by exchanging heat with air flows is provided.
  • the air conditioner 1 includes a branching mechanism 6 that branches the suction flow path 5 into a first flow path 3 and a second flow path 4.
  • the branching mechanism 6 includes a first fan 61 and a second fan 62 that function as a blower, and causes the suction air flowing through the suction flow path 5 to the first air flowing through the first flow path 3 and the second flow path 4. Divides into the flowing second air. Details of the branching mechanism 6 will be described later.
  • the suction flow path 5 is a flow path provided between the suction port 51 and the branch mechanism 6, and includes the suction path 22 of the sensible heat exchanger 2, which will be described later.
  • a filter 52 formed of, for example, polyester or olefin fibers is provided in the suction flow path 5 in the vicinity of the suction port 51. The filter 52 collects dust in the air sucked from the suction port 51, and prevents the dust from entering the suction path 22 of the sensible heat exchanger 2.
  • the first flow path 3 is a flow path provided between the branch mechanism 6 and the first outlet 31, and includes the first path 21 of the sensible heat exchanger 2, which will be described later.
  • the second flow path 4 is a flow path provided between the branch mechanism 6 and the second outlet 41.
  • the sensible heat exchanger 2 includes a suction path 22 that forms at least a part of the suction flow path 5, and a first path 21 that forms at least a part of the first flow path 3.
  • the sensible heat exchanger 2 is provided with a box-shaped case made of metal or resin such as aluminum, and by providing a heat insulating member on the outer peripheral surface of the case, the first air flowing inside the sensible heat exchanger 2 is provided. Alternatively, the heat exchange between the suction air and the ambient air of the sensible heat exchanger 2 may be restricted.
  • the first path 21 and the suction flow path 5 formed in the sensible heat exchanger 2 are configured by, for example, providing a plurality of metal plates having a hollow structure through which the first air or the suction air flows in parallel.
  • the metal plate having the hollow structure may be, for example, one composed of a plurality of fins or a flat tube.
  • the efficiency of heat exchange can be improved by forming the plate with aluminum, copper, or the like, which are metals having good heat transfer properties, or an alloy containing these as main components.
  • a plurality of the first path 21 and the suction path 22 are formed side by side by each of the plurality of metal plates having a hollow structure.
  • the suction path 22 of the sensible heat exchanger 2 is formed in a crank shape that communicates from the lower left inlet to the upper right outlet.
  • the suction path 22 is formed in an inverted Z shape.
  • the inlet of the first path 21 of the sensible heat exchanger 2 is provided above the sensible heat exchanger 2, and the outlet of the first path 21 of the sensible heat exchanger 2 is exposed. It is provided below the heat exchanger 2. Therefore, the first path 21 of the sensible heat exchanger 2 is formed in a straight line from the upper side to the lower side.
  • the first air flowing through the first path 21 flows from above to below, and the suction air flowing through the suction path 22 flows from below to above, so that the first air and the suction air The flows form countercurrents that are opposite to each other.
  • a spraying section 16 is provided above the inlet of the first path 21 of the heat exchanger 2, and the first path 21 is generated by the heat of vaporization when the mist-like water sprayed from the spraying section 16 is vaporized.
  • the first air flowing through the air is cooled.
  • the sensible heat exchanger 2 exchanges heat between the suction air flowing through the suction path 22 and the first air flowing through the first path 21, and the suction air is cooled by the first air. Since the flows of the first air and the suction air form a countercurrent, the heat exchange rate in the sensible heat exchanger 2 can be improved.
  • the suction air sucked from the air conditioning space through the suction port 51 passes through the filter 52 and then flows into the suction path 22 of the sensible heat exchanger 2.
  • the suction air that has flowed into the suction path 22 of the sensible heat exchanger 2 is cooled by exchanging heat with the first air via the sensible heat exchanger 2.
  • the sucked air that has been cooled and has passed through the suction path 22 of the sensible heat exchanger 2 flows into the branch chamber 63 of the branch mechanism 6 located on the downstream side of the suction path 22.
  • the suction air flowing into the branching mechanism 6 is divided into the first air flowing through the first flow path 3 and the second air flowing through the second flow path 4.
  • the second air flowing through the second flow path 4 is blown out from the second air outlet 41 (air supply air outlet) into the air-conditioned space to cool the air-conditioned space.
  • the first air flowing through the first flow path 3 flows into the first path 21 of the sensible heat exchanger 2.
  • the first air flowing into the first path 21 is further cooled by the heat of vaporization of the sprayed water sprayed from the spraying portion 16 as described above.
  • the first air flowing through the first path 21 exchanges heat with the suction air flowing through the suction path 22 via the sensible heat exchanger 2, so that the suction air is cooled.
  • the first air can be substantially cooled in two stages, and the temperature of the first air can be efficiently lowered. That is, by cooling the first air in two stages, the suction air can be cooled to a lower temperature than in the case where the suction air is only directly cooled by the heat of vaporization.
  • the second air blown out into the air-conditioned space is a divergence of the suction air, and the suction air is cooled by the first air via the sensible heat exchanger 2.
  • the suction air cooled by the first air is efficiently cooled, and the suction air cooled in this way is separated. 2 Air can be blown into the air-conditioned space to supply air.
  • the first air that has passed through the first path 21 of the sensible heat exchanger 2 is exhausted by being blown out from the first air outlet 31 to the air-conditioned space or the outside after passing through the drain pan 13 described later.
  • the branch mechanism 6 includes a blower unit, a first fan 61 that functions as the blower unit, and a branch chamber 63 that houses the second fan 62.
  • the first fan 61 and the second fan 62 are described so as to be on the left and right, but they may be arranged back and forth in the depth direction of FIG.
  • the branching mechanism 6 branches the suction flow path 5 located on the downstream side of the suction path 22 into the first flow path 3 and the second flow path 4, so that the suction passage 6 has passed through the suction path 22 of the sensible heat exchanger 2.
  • the air is divided into the first air flowing through the first flow path 3 and the second air flowing through the second flow path 4. Therefore, the suction flow path 5 communicates with the first flow path 3 and the second flow path 4 via the branch chamber 63.
  • the first fan 61 and the second fan 62 are centrifugal fans such as a turbo fan, and have a suction portion 611 and 621 located at the center and a blowout portion 612 and 622 extending in one direction.
  • the suction portion 611, 621 and the blowout portion 612, 622 are provided on the shell member forming the outer shell of the turbofan.
  • the first fan 61 and the second fan 62 are provided in the branch chamber 63 so that a part thereof overlaps with each other.
  • the first fan 61 is provided with the blowout portion 612 facing the first flow path 3.
  • a spraying portion 16 is provided in the first flow path 3, and the blowing portion 612 of the first fan 61 is directed to the spraying portion 16.
  • the first fan 61 blows a part of the suction air that has flowed into the branching mechanism 6 into the first flow path 3 as the first air.
  • the first air blown out from the first fan 61 is guided to the spraying portion 16 by the guide wall 32 provided in the first flow path 3.
  • the second fan 62 is provided with the blowout portion 622 facing the second flow path 4.
  • the second flow path 4 communicates with the second outlet 41, and the outlet portion 622 of the second fan 62 faces the second outlet 41.
  • the second fan 62 blows out a part of the suction air that has flowed into the branching mechanism 6 into the second flow path 4 as the second air.
  • the second air blown out from the second fan 62 is supplied to the air-conditioned space from the second air outlet 41.
  • the blowout portions 612 and 622 of the turbofan have a shape extending in one direction, and the air blown out from the blowout portions 612 and 622 of the turbofan has directivity toward the extension direction of the blowout portions 612 and 622. Therefore, the first fan 61 can efficiently blow out the suction air sucked from the suction section 611 from the blowout section 612 toward the spray section 16. Further, the second fan 62 can efficiently blow out the suction air sucked from the suction portion 621 from the outlet portion 622 toward the second outlet 41.
  • the first path 21 and the second path branched by the branching mechanism 6 are extended in different directions so as to be opposite to each other.
  • the blowout portion 612 of the first fan 61 and the blowout portion 622 of the second fan 62 are oriented in different directions so as to be opposite to each other. Therefore, when the first air and the second air separated by the first fan 61 and the second fan 62 are blown out from the first path 21 and the second path, interference by the first air and the second air is suppressed and ventilation is performed. It is possible to reduce the generation of resistance.
  • the branching mechanism 6 is provided above the sensible heat exchanger 2.
  • the suction path 22 is provided from the lower side to the upper side in the flow direction of the suction air. Since the suction path 22 forms a part of the suction flow path 5, the suction flow path 5 is provided from the lower side to the upper side in the flow direction of the suction air.
  • the first path 21 is provided from the upper side to the lower side in the flow direction of the first air. Since the first path 21 forms a part of the first flow path 3, the first flow path 3 is provided from the upper side to the lower side in the flow direction of the first air.
  • the branch mechanism 6 is provided at a turning point by a suction flow path 5 provided from the lower side to the upper side and a first flow path 3 provided from the upper side to the lower side.
  • a portion where the flow path is folded back by about 270 degrees in the vicinity of the branching mechanism 6 is a turning point.
  • the U-shaped flow path is formed by the suction flow path 5 provided from the lower side to the upper side and the first flow path 3 provided from the upper side to the lower side
  • the U-shaped flow path is formed.
  • the branching mechanism 6 is provided at the turning point above the heat exchanger 2
  • it can contribute to the alleviation of pressure loss.
  • the suction portion 611 and the suction portion 621 may be adjacent to the outlet of the suction path 22 in FIG. In that case, the deformation can be easily performed by providing a wall surface or the like that defines the directions and flow paths of the blowout portions 612 and 622 of each fan in the direction of the first path 21 or the direction of the second outlet 41.
  • the air conditioner 1 includes a drain pan 13 provided below the heat exchanger 2, a tank 14 for storing the sprayed water sprayed from the spraying section 16, and a pump 11 for supplying the water in the tank 14 to the spraying section 16. ..
  • the drain pan 13 is, for example, a dish-shaped container having an opening on the upper surface.
  • a communication passage for communicating with the tank 14 is provided on the bottom surface of the drain pan 13.
  • the water that has not vaporized or the water that has condensed after vaporizing is dropped downward along the inner wall surface of the first path 21 of the heat exchanger 2 and is dropped onto the drain pan 13. Is retained.
  • the water in the drain pan 13 flows into the tank 14 through the continuous passage.
  • the tank 14 is provided with a water supply port (not shown), and tap water is replenished into the tank 14 through the water supply port.
  • the tank 14 and the pump 11 communicate with each other by a pipe, and the water in the tank 14 is supplied to the spraying portion 16 by driving the pump 11.
  • the pump 11 is controlled to be driven or stopped by a control signal output from the controller 12.
  • the controller 12 is composed of a microcomputer or the like including a control unit and a storage unit, and drives or stops the pump 11 and the first fan 61 and the second fan 62 which are the blower units based on the operation of the operator of the air conditioner 1. Take control.
  • the spraying unit 16 includes a spraying nozzle for spraying mist-like water, and the spraying nozzle communicates with the tank 14 via a pipe and a pump 11. As described above, the water in the tank 14 is supplied to the spraying portion 16 by the pump 11, and is sprayed from the spraying nozzle toward the inlet of the first path 21 of the sensible heat exchanger 2.
  • the air conditioner 1 includes an electric device 17 including an electric component 171 and a storage battery 172.
  • the electric device 17 is provided adjacent to the first path 21 of the heat exchanger 2 and the first flow path 3 after passing through the drain pan 13. In other words, the electric device 17 is provided adjacent to the first flow path 3 between the downstream side of the drain pan 13 and the first outlet 31 in the flow direction of the first air. Details regarding the arrangement relationship between the first flow path 3 and the electric device 17 will be described later.
  • the electrical component 171 is, for example, a resistor, a coil, a capacitor, a semiconductor element, or the like, which generates heat when a voltage is applied and a current flows.
  • the electric component 171 includes a circuit board such as a control board or a power supply board on which these components are mounted.
  • the electrical component 171 may be housed in a box such as an electrical component box.
  • the electrical component 171 may include a controller 12.
  • the storage battery 172 is, for example, a lithium ion battery, and when the air conditioner 1 is not connected to a commercial power source, it supplies electric power to an electric load such as a blower and a pump 11.
  • the storage battery 172 generates heat due to internal resistance or the like by supplying electric power to an electric load.
  • the heat generation amount per unit time by the storage battery 172 may be larger than the heat generation amount per unit time by the electric component 171.
  • FIG. 3 is an explanatory view of the first flow path 3 downstream of the heat exchanger 2 and the electric device 17.
  • FIG. 3 is a schematic cross-sectional view seen from the upper surface of the air conditioner 1, and is provided adjacent to the first flow path 3 and the first flow path 3 on the downstream side of the heat exchanger 2. It shows the arrangement relationship with the electric device 17.
  • FIG. 3 is a schematic view of a cross section taken along the line BB'in FIG. 2 from above in FIG.
  • the sensible heat exchanger 2 is provided with the first path 21 which constitutes a part of the first flow path 3.
  • the first path 21 is configured by providing, for example, a plurality of metal plates or flat tubes having a hollow structure side by side. The first air that has passed through the first path 21 of the heat exchanger 2 is blown out from the first outlet 31 provided above the drain pan 13 after passing through the drain pan 13.
  • the first flow path 3 located on the downstream side of the sensible heat exchanger 2 in the first air flow direction communicates with the drain pan 13 and the first outlet 31 in this order.
  • the first outlet 31 is provided above the drain pan 13.
  • the first path 21 is formed linearly from the upper side to the lower side in the flow direction of the first air. Therefore, the first flow path 3 includes a turning point where the drain pan 13 is provided as the lowest point and is folded up and down. That is, the drain pan 13 is provided at a turning point in the first flow path 3.
  • the drain pan 13 By providing the drain pan 13 at the turning point, the mist-like water flowing together with the first air flowing out of the first path 21 can be centrifuged and collected in the drain pan 13. As a result, it is possible to prevent the unevaporated water from flowing into the first flow path 3 beyond the turning point, and to prevent the unevaporated water from affecting the electric device 17.
  • the first flow path 3 from the turning point to the first outlet 31 is provided so as to extend in the depth direction in FIG. 1, that is, in the left-right direction in FIG.
  • an electric device 17 is provided adjacent to the first flow path 3 from the turning point to the first outlet 31.
  • the electric device 17 includes a storage battery 172 and an electric component 171.
  • Each of the storage battery 172 and the electric component 171 is provided adjacent to the first flow path 3, and a wall forming the first flow path 3 is provided. It is thermally connected to the body 33.
  • Thermal connection means, for example, that the connection is provided in a heat exchangeable state. At this time, it is sensible heat that is exchanged.
  • the wall body 33 constituting the first flow path 3 is a wall body 33 forming the inner surface of the first flow path 3, and is, for example, a plate-shaped structure or a strength member for maintaining the rigidity of the air conditioner 1. It may be.
  • the first flow path 3 is composed of a cylinder such as a pipe or a duct, the cylinder corresponds to the wall body 33, and the inner peripheral surface of the cylinder corresponds to the inner surface of the first flow path 3. .
  • the electric device 17, that is, the storage battery 172 and the electric component 171 are provided adjacent to the wall body 33 forming the inner surface of the first flow path 3 from the turning point to the first air outlet 31, and the wall body 33 It is thermally connected.
  • the storage battery 172 and the electric component 171 and the wall body 33 are thermally connected, the first air flowing through the first flow path 3 formed by the wall body 33, the storage battery 172 and the electric component 171 Heat is exchanged between.
  • the operating temperature range of the storage battery 172 and the electric component 171 is set to, for example, 60 ° C. or lower, whereas the temperature of the first air flowing through the first flow path 3 formed by the wall 33 is sufficiently low. , The storage battery 172 and the electric component 171 can be efficiently cooled by the first air. Since the temperature of the first air flowing through the first flow path 3 formed by the wall body 33 is cooled by the heat of vaporization, it is lower than the ambient air of the air conditioner 1, that is, the room temperature of the air-conditioned space. Therefore, the storage battery 172 and the electric component 171 can be cooled more efficiently by the first air.
  • the temperature of the first air rises due to the heat generated by the storage battery 172 and the electric component 171, and the saturated water vapor pressure and the saturated water vapor amount of the first air rise.
  • the absolute humidity of the first air increases as the water sprayed by the spraying unit 16 evaporates, but the saturated water vapor pressure rises and the relative humidity drops due to the heat generated by the storage battery 172 and the electrical components 171. It is possible to suppress the occurrence of dew condensation in the first flow path 3 located on the downstream side of the sensible heat exchanger 2.
  • the first air that has passed through the sensible heat exchanger 2 is blown out from the first air outlet 31 and exhausted to the air-conditioned space or the outside, but the storage battery 172 and the electric component 171 pass through the wall body 33.
  • the storage battery 172 and the electric component 171 can be efficiently cooled by utilizing the cold heat of the first air. That is, by utilizing the cold heat of the exhausted first air, a dedicated cold heat source for cooling the storage battery 172 and the electric component 171 is not required, and the electric device 17 such as the storage battery 172 and the electric component 171 is cooled. Deterioration can be alleviated by the heat generated by the electric device 17.
  • the storage battery 172 and the electric component 171 are in direct contact with the surface of the wall body 33 facing the storage battery 172 and the electric component 171. It is not limited to the mode of being thermally connected.
  • Another structural component is interposed between the storage battery 172 and the electric component 171 and the surface of the wall body 33 facing the storage battery 172 and the electric component 171.
  • the storage battery 172 and the electric component are interposed via the structural component.
  • the 171 and the wall body 33 may be thermally connected.
  • the first flow path 3 from the turning point to the first outlet 31 is provided between the sensible heat exchanger 2, the storage battery 172, and the electric component 171.
  • the first flow path 3 located on the downstream side of the turning point in the first air flow direction is formed between the sensible heat exchanger 2, the storage battery 172, and the electrical component 171.
  • the first air flowing through the flow path 3 exerts a function as a heat insulating material interposed between the sensible heat exchanger 2 and the electric device 17. Therefore, it is possible to reduce the influence of heat generated by the storage battery 172 and the electric component 171 on the sensible heat exchanger 2.
  • the storage battery 172 and the electric component 171 are provided along the first flow path 3. That is, the storage battery 172 and the electric component 171 face the wall body 33 constituting the first flow path 3, and are provided side by side along the flow direction of the first air flowing through the first flow path 3. In the first air flow direction, the storage battery 172 is provided on the downstream side of the electrical component 171.
  • the heat generation amount per unit time by the storage battery 172 is larger than the heat generation amount per unit time by the electric component 171.
  • the heat transfer resistance is the distance between the storage battery 172 and the electric component 171 which are heat generation sources and the wall body 33. That is, it increases according to the heat transfer distance. Therefore, due to the heat generated from the storage battery 172, the temperature of the portion of the wall body 33 closest to the storage battery 172 rises most. Similarly, the heat generated from the electric component 171 causes the temperature of the portion of the wall body 33 closest to the electric component 171 to rise the most.
  • the storage battery 172 Since the storage battery 172 is located downstream of the electric component 171 in the flow direction of the first air, the first air passes through the portion of the wall body 33 closest to the electric component 171 and then the storage battery 172. It passes through the portion of the wall body 33 closest to the. Therefore, first, the electric component 171 having a small calorific value is cooled by the first air, and then the storage battery 172 having a calorific value higher than that of the electric component 171 is cooled to improve the efficiency of the electric device 17 including the storage battery 172 and the electric component 171. Can be cooled. Since the amount of heat generated by the electric component 171 is small, the degree of influence on the cooling of the electric component 171 is small.
  • both the electric component 171 and the storage battery 172 can be combined with the first air. A large temperature difference can be taken, and efficient cooling can be performed.
  • the storage battery 172 is a consumable component that needs to be replaced according to the period of use, whereas the electrical component 171 is mounted on the air conditioner 1 as a so-called permanent component. Therefore, by setting the electric component 171 on the upstream side of the storage battery 172, the electric component 171 can be cooled preferentially over the consumable component storage battery 172, and deterioration can be suppressed by the heat of the electric component 171. ..
  • the electric component 171 having a small calorific value is arranged on the upstream side in the flow direction of the first air with respect to the storage battery 172 having a large calorific value, and is cooled by the first air, but the present invention is not limited to this. ..
  • the electric component 171 having a small calorific value may be arranged on the downstream side in the flow direction of the first air with respect to the storage battery 172 having a large calorific value.
  • the storage battery 172 having a large calorific value By arranging the storage battery 172 having a large calorific value on the upstream side of the electric component 171 having a small calorific value, it is possible to preferentially cool the storage battery 172 having a large calorific value and suppress the deterioration of the storage battery 172 due to heat. it can.
  • FIG. 4 is an explanatory diagram of the first flow path 3 and the electric device 17 according to the second embodiment.
  • FIG. 4 is an explanatory view of the heat transfer suppressing member 71 on the heat exchanger 2 side in particular.
  • a heat transfer suppressing member 71 that suppresses heat transfer is provided between the first flow path 3 located downstream of the sensible heat exchanger 2 and the sensible heat exchanger 2. It differs from the air conditioner 1 of the first embodiment in that it is provided.
  • a heat transfer suppressing member 71 is provided between the first flow path 3 located on the downstream side of the turning point and the sensible heat exchanger 2. That is, in the wall body 33 constituting the first flow path 3, the heat transfer suppressing member 71 is interposed between the portion of the wall body 33 on the sensible heat exchanger 2 side and the sensible heat exchanger 2.
  • the heat transfer suppressing member 71 is, for example, a heat insulating material such as foamed plastic. Alternatively, it may be a heat transfer suppressing structure by a structure or the like provided with an air layer partitioned inside.
  • the heat transfer suppressing member 71 By providing the heat transfer suppressing member 71 between the first flow path 3 located on the downstream side of the sensible heat exchanger 2 and the sensible heat exchanger 2, the heat generated by the electric device 17 with respect to the sensible heat exchanger 2 is generated. The impact can be reduced. In other words, it is possible to reduce that the heat generated by the electric device 17 affects the temperature of the second air supplied to the air-conditioned space.
  • FIG. 5 is an explanatory diagram of the first flow path 3 and the electric device 17 according to the third embodiment.
  • FIG. 5 is an explanatory view of the heat transfer promoting member 72 on the electric device 17 side in particular.
  • a heat transfer promoting member 72 for promoting heat transfer is provided between the first flow path 3 located on the downstream side of the heat exchanger 2 and the electric device 17. This is different from the air conditioner 1 of the first embodiment.
  • a heat transfer promoting member 72 for promoting heat transfer is provided between the first flow path 3 located on the downstream side of the turning point and the storage battery 172 and the electric component 171. That is, in the wall body 33 constituting the first flow path 3, the heat transfer promoting member 72 is interposed between the portion of the wall body 33 on the side of the storage battery 172 and the electric component 171 and the storage battery 172 and the electric component 171. doing.
  • the heat transfer promoting member 72 is a metallic heat sink having good heat transfer properties, such as aluminum, copper, or an alloy containing these as a main component. Further, the heat transfer promoting member 72 may have a shape that projects from the wall body 33 to the first flow path 3 or has irregularities on the surface so that a wide area where heat exchange is possible is secured.
  • the wall body 33 and the heat transfer promoting member 72 may be integrated. That is, various materials and structures for increasing the heat exchange efficiency can be adopted for the heat transfer promoting member 72, and the heat transfer promoting member 72 may be considered to be a part of the wall body 33. ..
  • the heat transfer promoting member 72 between the first flow path 3 located downstream of the sensible heat exchanger 2 and the storage battery 172 and the electric component 171 so that the first air flowing through the first flow path 3 can be used.
  • the storage battery 172 and the electric component 171 can be efficiently cooled.
  • Air conditioner 11 Pump 12 Controller 13 Drain pan 14 Tank 15 Housing 151 Caster 16 Spraying part 17 Electrical device 171 Electrical parts 172 Storage battery 2 Microheat exchanger 21 1st path 22 Suction path 3 1st channel 31 1st outlet ( Exhaust outlet) 32 Guide wall 33 Wall body 4 Second flow path 41 Second outlet (supply air outlet) 5 Suction flow path 51 Suction port 52 Filter 6 Branching mechanism 61 1st fan (blower, centrifugal fan) 62 Second fan (blower, centrifugal fan) 63 Branch chamber 71 Heat transfer suppression member (insulation material) 72 Heat transfer promotion member (heat sink)

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Devices For Blowing Cold Air, Devices For Blowing Warm Air, And Means For Preventing Water Condensation In Air Conditioning Units (AREA)
  • Air Conditioning Control Device (AREA)
PCT/JP2020/002282 2019-07-18 2020-01-23 空調機 Ceased WO2021009946A1 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
ES20839809T ES3053160T3 (en) 2019-07-18 2020-01-23 Air conditioning apparatus
EP20839809.9A EP3988853B1 (en) 2019-07-18 2020-01-23 Air conditioning apparatus
CN202080051195.6A CN114127482B (zh) 2019-07-18 2020-01-23 空调机
US17/573,463 US12408302B2 (en) 2019-07-18 2022-01-11 Air conditioner

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JP2019-133142 2019-07-18
JP2019133142A JP6935810B2 (ja) 2019-07-18 2019-07-18 空調機

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US17/573,463 Continuation US12408302B2 (en) 2019-07-18 2022-01-11 Air conditioner

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WO2021009946A1 true WO2021009946A1 (ja) 2021-01-21

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EP (1) EP3988853B1 (https=)
JP (2) JP6935810B2 (https=)
CN (1) CN114127482B (https=)
ES (1) ES3053160T3 (https=)
WO (1) WO2021009946A1 (https=)

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JP2023030647A (ja) * 2021-08-23 2023-03-08 ブラザー工業株式会社 空調機
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JP6935810B2 (ja) 2021-09-15
JP7388413B2 (ja) 2023-11-29
EP3988853C0 (en) 2025-10-01
EP3988853A1 (en) 2022-04-27
EP3988853B1 (en) 2025-10-01
US20220132699A1 (en) 2022-04-28
EP3988853A4 (en) 2023-07-05
CN114127482B (zh) 2023-06-23
JP2021181882A (ja) 2021-11-25
US12408302B2 (en) 2025-09-02
ES3053160T3 (en) 2026-01-19
CN114127482A (zh) 2022-03-01
JP2021018014A (ja) 2021-02-15

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