WO2020204208A1 - Dispositif pompe à chaleur - Google Patents

Dispositif pompe à chaleur Download PDF

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Publication number
WO2020204208A1
WO2020204208A1 PCT/JP2020/015512 JP2020015512W WO2020204208A1 WO 2020204208 A1 WO2020204208 A1 WO 2020204208A1 JP 2020015512 W JP2020015512 W JP 2020015512W WO 2020204208 A1 WO2020204208 A1 WO 2020204208A1
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WO
WIPO (PCT)
Prior art keywords
side wall
fan
heat exchange
air
housing
Prior art date
Application number
PCT/JP2020/015512
Other languages
English (en)
Japanese (ja)
Inventor
奎志朗 田村
高幹 山本
貴司 小野
貴士 柏原
波留奈 赤木
佐藤　健
Original Assignee
ダイキン工業株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP2019072995A external-priority patent/JP2020169788A/ja
Priority claimed from JP2020066037A external-priority patent/JP2020173090A/ja
Application filed by ダイキン工業株式会社 filed Critical ダイキン工業株式会社
Publication of WO2020204208A1 publication Critical patent/WO2020204208A1/fr

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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
    • F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • F24F1/14—Heat exchangers specially adapted for separate outdoor units
    • F24F1/16—Arrangement or mounting thereof
    • 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
    • F24F1/14—Heat exchangers specially adapted for separate outdoor units
    • F24F1/18—Heat exchangers specially adapted for separate outdoor units characterised by their shape
    • 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
    • F24F1/38—Fan details of outdoor units, e.g. bell-mouth shaped inlets or fan mountings
    • 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
    • F24F1/46—Component arrangements in separate outdoor units
    • 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
    • F24F1/46—Component arrangements in separate outdoor units
    • F24F1/48—Component arrangements in separate outdoor units characterised by air airflow, e.g. inlet or outlet airflow
    • 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
    • F24F1/46—Component arrangements in separate outdoor units
    • F24F1/48—Component arrangements in separate outdoor units characterised by air airflow, e.g. inlet or outlet airflow
    • F24F1/50—Component arrangements in separate outdoor units characterised by air airflow, e.g. inlet or outlet airflow with outlet air in upward direction
    • 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
    • F24F13/20—Casings or covers
    • 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
    • F24F13/30—Arrangement or mounting of heat-exchangers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/047—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/02—Tubular elements of cross-section which is non-circular
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
    • F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal

Definitions

  • This disclosure relates to a heat pump device.
  • the outdoor unit of this air conditioner includes a housing and a heat exchanger and a fan arranged inside the housing.
  • the housing is formed in a rectangular shape in a plan view
  • the heat exchanger is formed in an L shape in a plan view along two adjacent side walls of the housing.
  • the fan is configured to take in air from the two side walls of the housing, pass it through the heat exchanger, and blow out the air from the upper wall of the housing.
  • Patent Document 1 The outdoor unit described in Patent Document 1 is often applied to small and medium-sized equipment, and is formed to be smaller than the outdoor unit applied to a large building or the like, so that the transportation and installation work is relatively easy. It's easy. By increasing the heat exchange capacity of such an outdoor unit, it is desired that it can be applied to smaller but larger-scale equipment.
  • the object of the present disclosure is to provide a heat pump device having an enhanced heat exchange capacity.
  • the heat pump device of the present disclosure is A housing having a first side wall and a second side wall facing each other, and an upper wall, A heat exchanger and a fan housed in the housing are provided.
  • a first air intake and a second air intake are provided on the first side wall and the second side wall, respectively.
  • a first air outlet is provided on the upper wall.
  • the heat exchange device includes a first heat exchange unit arranged along the first side wall and a second heat exchange unit arranged along the second side wall.
  • the fan is arranged so as to be sandwiched between the first heat exchange portion and the second heat exchange portion, has a rotation axis in a direction intersecting the first side wall and the second side wall, and has the second side wall. 1 Air is taken in from the air intake and the second air intake and discharged to the first air outlet.
  • the first heat exchange section and the second heat exchange section are separated.
  • the housing has a third side wall that connects adjacent ends of the first side wall and the second side wall.
  • a second air outlet is formed on the third side wall. According to this configuration, air can be blown not only from the first air outlet but also from the second air outlet, the air blowing resistance can be reduced, and the air volume can be increased.
  • a fan housing for accommodating the fan is provided in the housing.
  • the fan housing has a first discharge port facing the first air outlet and a second discharge port facing the second air outlet.
  • the housing has a third side wall that connects the adjacent ends of the first side wall and the second side wall.
  • a third air intake is provided on the third side wall.
  • the heat exchange device includes a third heat exchange unit arranged along the third side wall. With such a configuration, the heat exchange device has the heat exchange portions arranged along the three side walls of the first, second, and third side walls of the housing, and the heat exchange capacity is further improved. be able to.
  • the first heat exchange section, the second heat exchange section, and the third heat exchange section are integrally formed.
  • the structure of the heat exchange device can be simplified and downsized as compared with the case where the first, second, and third heat exchange units are each composed of separate heat exchangers. ..
  • a fan housing for accommodating the fan is provided in the housing.
  • the fan housing has a first outlet facing the first air outlet.
  • a machine room is formed on one side of the housing in the horizontal direction along the first side wall and the second side wall, and the first discharge port is viewed from above in the vertical direction. Overlaps the machine room. With such a configuration, the first discharge port can be expanded in the horizontal direction along the first side wall and the second side wall, and the air volume of the fan can be increased.
  • the heat exchange device has a heat transfer tube made of a flat multi-hole tube made of aluminum or an aluminum alloy. With such a configuration, the heat exchange capacity of the heat exchange apparatus can be improved.
  • the fan has a first wing portion that takes in air from the first air intake, a second wing portion that takes in air from the second air intake, and first and second wing portions. It is equipped with one motor to rotate. With such a configuration, both the first wing portion and the second wing portion can be driven by one motor, and air can be taken in from both the first air intake and the second air intake.
  • the heat pump device has a support base that cantileverably supports the fan on one side in the direction of the rotation axis of the fan. According to this configuration, the size of the housing can be reduced by cantilevering the fan with a support base.
  • the fan is a mixed flow fan.
  • the mixed flow fan can expand the effective suction area as compared with a centrifugal fan such as a turbo fan, and can efficiently exchange heat in the first heat exchange section and the second heat exchange section. ..
  • the bottom area of the housing is 0.6 m 2 or less.
  • the weight of the heat pump device is preferably 110 kg or less. With such a configuration, the heat pump device can be transported by two people.
  • FIG. 1 is a perspective view of the heat pump device according to the first embodiment.
  • FIG. 2 is a schematic horizontal sectional view of the heat pump device.
  • FIG. 3 is a schematic vertical sectional view of the heat pump device.
  • the heat pump device 10 of the present embodiment is used as an outdoor unit such as an air conditioner or a hot water supply device.
  • the right side of FIG. 2 will be referred to as “front”, the left side as “rear”, the lower side as “left”, and the upper side as “right”.
  • these directions are defined for the convenience of explanation, and the left and right or front and back may be interchanged and read, or the left and right and front and back may be interchanged and read.
  • the outdoor unit 10 includes a housing 11.
  • the housing 11 is a box formed in a rectangular parallelepiped and having a hollow inside.
  • the housing 11 has an upper wall 12, a lower wall 13, and side walls 14 to 17.
  • the upper wall 12 and the lower wall 13 are formed in a rectangular shape in a plan view.
  • the side walls 14 to 17 connect the four sides corresponding to the upper and lower sides of the upper wall 12 and the lower wall 13.
  • the side walls 14 to 17 are the left side wall (first side wall) 14 and the right side wall (second side wall) 15 connecting the long sides of the upper wall 12 and the lower wall 13, and the short sides of the upper wall 12 and the lower wall 13.
  • the front side wall (third side wall) 16 and the rear side wall (fourth side wall) 17 are included.
  • the left side wall 14 and the right side wall 15 face each other in the direction along the short sides of the upper wall 12 and the lower wall 13.
  • the front side wall 16 and the rear side wall 17 face each other in a direction along the long sides of the upper wall 12 and the lower wall 13.
  • the weight of the outdoor unit 10 is, for example, 110 kg or less.
  • the left side wall 14 is formed with a left side air intake (first air intake) 19 for taking in air into the housing 11.
  • the right side wall 15 is formed with a right air intake (second air intake) 20 for taking in air into the housing 11.
  • the front side wall 16 is formed with a front air intake (third air intake) 21 for taking in air into the housing 11.
  • air outlets 22 and 23 for blowing air from the inside of the housing 11 are formed on the upper wall 12.
  • a rear air outlet (first air outlet) 22 and a front air outlet (third air outlet) 23 are formed on the upper wall 12 of the present embodiment, and these are arranged side by side in the front-rear direction. There is.
  • the rear air outlet 22 and the front air outlet 23 are covered with a protective net 24.
  • the outdoor unit 10 includes a heat exchange device 25 and a fan device 26.
  • the heat exchange device 25 and the fan device 26 are housed inside the housing 11.
  • the housing 11 has a heat exchange chamber S1 and a machine room S2 inside.
  • the heat exchange chamber S1 is arranged on the front side in the housing 11, and houses the heat exchange device 25 and the fan device 26.
  • the machine room S2 is arranged on the rear side in the housing 11, and houses a compressor (not shown), a four-way switching valve, an expansion valve, an electrical component unit, and the like.
  • the heat exchange device 25 is bent in a U shape along the left side wall 14, the front side wall 16, and the right side wall 15 in a plan view (top view).
  • the portion of the heat exchange apparatus 25 arranged along the left side wall 14 is referred to as the left side heat exchange unit (first heat exchange unit) 33.
  • the portion of the heat exchange device 25 arranged along the right side wall 15 is referred to as the right side heat exchange unit (second heat exchange unit) 34.
  • a portion of the heat exchange apparatus 25 arranged along the front side wall 16 is referred to as a front heat exchange unit (third heat exchange unit) 35.
  • the heat exchange device 25 has a left side heat exchange unit 33, a right side heat exchange unit 34, and a front side heat exchange unit 35, which are integrally formed.
  • the heat transfer tube 28, which will be described later, is connected to the left side heat exchange unit 33, the right side heat exchange unit 34, and the front side heat exchange unit 35.
  • the heat exchange device 25 has a plurality of heat transfer tubes 28 through which the refrigerant flows.
  • Each heat transfer tube 28 is arranged horizontally.
  • the plurality of heat transfer tubes 28 are arranged side by side in the vertical direction.
  • the longitudinal ends of the plurality of heat transfer tubes 28 are connected to headers 29 and 30 arranged along the vertical direction as shown in FIG.
  • the heat transfer tube 28 of the present embodiment is composed of a flat multi-hole tube as shown in FIG.
  • the heat transfer tube 28 has a cross-sectional shape in which the length (width) in the horizontal direction is larger than the length (thickness) in the vertical direction.
  • a plurality of refrigerant flow paths 28a are arranged side by side in the horizontal direction.
  • Fins 31 are provided between the heat transfer tubes 28 adjacent to the top and bottom.
  • a large number of fins 31 are provided side by side in the longitudinal direction of the heat transfer tube 28.
  • the plurality of heat transfer tubes 28 and the fins 31 are integrally assembled.
  • the heat transfer tubes 28, the headers 29 and 30, and the fins 31 are made of aluminum or an aluminum alloy.
  • the fan device 26 includes a main fan (first fan) 37 and a sub fan (second fan) 38.
  • the main fan 37 is arranged so as to be sandwiched between the left heat exchange unit 33 and the right heat exchange unit 34.
  • the main fan 37 is a centrifugal fan such as a turbo fan.
  • the main fan 37 has a rotation axis 40 that is orthogonal (intersects) to the left side wall 14 and the right side wall 15 and is arranged along the horizontal direction (left-right direction).
  • the rotation shaft 40 of the main fan 37 may not be arranged exactly along the horizontal direction, and may have a slight inclination.
  • the axis C1 of the rotating shaft 40 is also simply referred to as “rotating axis C1”.
  • the direction along the axis C1 is also referred to as the "rotational axis direction”.
  • the main fan 37 has a left wing portion (first wing portion) 41 and a right wing portion (second wing portion) 42.
  • the left wing portion 41 and the right wing portion 42 are provided adjacent to each other in the direction of the axis of rotation.
  • the left wing portion 41 and the right wing portion 42 can rotate integrally.
  • the left wing portion 41 and the right wing portion 42 are individually rotatably connected to each other.
  • the left wing portion 41 and the right wing portion 42 are integrally formed from the beginning.
  • the main fan 37 includes one motor 43.
  • the drive shaft of the motor 43 is connected to the rotating shaft 40.
  • the motor 43 rotates the left and right wing portions 41 and 42 via the rotation shaft 40.
  • the motor 43 is supported by a support base 44 provided in the housing 11.
  • the support base 44 is arranged on one side of the main fan 37 in the left-right direction.
  • the support base 44 supports the main fan 37 in a cantilevered manner.
  • the left wing portion 41 of the main fan 37 rotates in the direction of the rotation axis from the left air intake (first air intake) 19 formed mainly on the left wall 14 (first side wall) 14 of the housing 11. Inhale the air.
  • the left wing portion 41 discharges the sucked air in the direction along the plane intersecting the rotation axis C1, specifically, in the present embodiment, in the direction along the plane orthogonal to the rotation axis C1.
  • the right wing portion 42 sucks air mainly from the right air intake port (second air intake port) 20 formed on the right side wall 15 (second side wall) of the housing 11 in the direction of the rotation axis by rotating.
  • the right wing portion 42 discharges the sucked air in the direction along the plane intersecting the rotation axis C1, specifically, in the present embodiment, in the direction along the plane orthogonal to the rotation axis C1.
  • the main fan 37 is rotated by the motor 43 in the direction of arrow a in FIG. 3 and discharges air in the direction of arrow b.
  • the left wing portion 41 and the right wing portion 42 can also draw in and suck air from the front air intake (third air intake) 21 formed on the front side wall (third side wall) 16 by rotating.
  • the amount of air taken in by the left wing portion 41 and the right wing portion 42 from the front air intake 21 is smaller than the amount of air taken in by the sub fan 38 described later from the front air intake 21.
  • the fan housing 46 includes a left wall portion (first wall portion) 47, a right wall portion (second wall portion) 48, a front wall portion (third wall portion) 49, and a rear wall portion (rear wall portion). It has a fourth wall portion) 50 and a bottom wall portion 51.
  • the left wall portion 47 and the right wall portion 48 face each other in the direction of the rotation axis of the main fan 37.
  • the front wall portion 49 and the rear wall portion 50 face each other in the horizontal direction orthogonal to the rotation axis C1 of the main fan 37.
  • a left suction port (first suction port) 47a is formed on the left wall portion 47.
  • a right suction port (second suction port) 48a is formed on the right wall portion 48.
  • a first discharge port 52 is formed on the upper portion of the fan housing 46.
  • the left suction port 47a and the right suction port 48a are circular openings centered on the rotation axis C1 of the main fan 37.
  • the air taken in from the left air intake 19 and the right air intake 20 passes through the left heat exchange section 33 and the right heat exchange section 34 and from the left suction port 47a and the right suction port 48a. It is sucked into the fan housing 46.
  • the first discharge port 52 of the fan housing 46 is an opening formed by being surrounded by the upper end edges of the left and right wall portions 47, 48 and the front and rear wall portions 49, 50.
  • the upper side of the front wall portion 49 of the fan housing 46 is inclined rearward and diagonally upward.
  • the upper side of the rear wall portion 50 of the fan housing 46 is also inclined rearward and diagonally upward. Therefore, the first discharge port 52 is arranged at a position biased toward the rear side of the fan housing 46.
  • the first discharge port 52 is arranged on the rear side of the rotation shaft 40 of the main fan 37.
  • the first discharge port 52 enters the region on the upper side of the machine room S2. Therefore, when the first discharge port 52 is viewed from above in the vertical direction, the first discharge port 52 overlaps the machine room S2.
  • the inclination of the front wall portion 49 of the fan housing 46 on the upper side has a function of guiding the flow of air discharged from the main fan 37 to the rear.
  • the lower portion of the front wall portion 49 of the fan housing 46 is inclined rearward and diagonally downward, and the lower end is connected to the front end of the bottom wall portion 51.
  • the lower portion of the rear wall portion 50 of the fan housing 46 is inclined diagonally forward and downward, and the lower end is connected to the rear end of the bottom wall portion 51.
  • a rear air outlet 22 formed on the upper wall 12 of the housing 11 is arranged above the first discharge port 52 of the fan housing 46.
  • the air sucked into the fan housing 46 by driving the main fan 37 is blown upward from the rear air outlet 22 through the first discharge port 52.
  • a front air outlet (third air outlet) 23 is arranged on the front side of the rear air outlet 22 on the upper wall 12 of the housing 11.
  • a sub fan 38 is arranged at the front air outlet 23.
  • the sub fan 38 is an axial fan that generates an air flow along the rotation axis C2.
  • the sub-fan 38 of the present embodiment is a propeller fan.
  • the sub fan 38 has a rotating shaft 54 arranged along the vertical direction and a motor 53 for driving the rotating shaft 54.
  • the diameter (diameter) of the sub fan 38 is smaller than the diameter (diameter) of the main fan 37.
  • the outer circumference of the sub fan 38 is surrounded by the bell mouth 55.
  • the bell mouth 55 substantially forms the front air outlet 23.
  • the rotation axis C2 of the sub fan 38 is arranged on the front side wall 16 side of the rotation axis C1 of the main fan 37.
  • the sub fan 38 is arranged at a position overlapping the main fan 37 in a plan view.
  • the sub portion is between the front wall portion 49 of the fan housing 46 and the front side wall portion 16 of the housing 11.
  • a space A that expands back and forth toward the upper side is formed below the fan 38.
  • a wide air flow path between the sub fan 38 and the front air intake 21 is formed by this space A, and the air volume of the air passing through the front heat exchange portion 35 can be secured.
  • air is also taken in from the left air intake 19 and the right air intake 20 of the housing 11 by driving the sub fan 38, and the air that has passed through the left heat exchange 33 and the right heat exchange 34 is on the front side. It is blown out from the air outlet 23.
  • the amount of air taken in from the left air intake 19 and the right air intake 20 by the sub fan 38 is smaller than the amount of air taken in from the left air intake 19 and the right air intake 20 by the main fan 37.
  • the fan housing 46 functions as a partition member that separates the air flow generation region by the main fan 37 from the air flow generation region by the sub fan 38.
  • the sub fan 38 is arranged at a position overlapping the main fan 37 in the plan view, but the front wall portion 49 of the fan housing 46 has its upper side inclined rearward and diagonally upward. It functions to rectify the air (guide function) for the air flow generated by the main fan 37, and functions to secure the air volume for the air flow generated by the sub fan 38.
  • the operation of the motor 43 in the main fan 37 and the motor 53 in the sub fan 38 are controlled by the controller 57.
  • the controller 57 is provided in an electrical component unit housed in the machine room S2.
  • the controller 57 controls in a form of driving both the main fan 37 and the sub fan 38, or in a form of driving either one, depending on the air conditioning load.
  • the motors 43 and 53 of both or either one may be inverter motors. In this case, the controller 57 can control the operating frequencies of the motors 43 and 53 according to the air conditioning load.
  • the heat exchange device 25 can be deformed as shown in FIG.
  • the heat exchange device 25 is arranged along the left side wall (first side wall) 14 of the housing 11 with the left side heat exchange part (first heat exchange part) 33 and the right side. It is provided with a right heat exchange section (second heat exchange section) 34 arranged along the wall (second side wall) 15.
  • the left heat exchange unit 33 and the right heat exchange unit 34 are separated and independent of each other.
  • By driving the main fan 37 air is taken into the housing 11 from both the left air intake (first air intake) 19 and the right air intake (second air intake) 20, and the left heat exchange unit 33 and It passes through the right heat exchange unit 34 and is blown upward.
  • the front heat exchange section does not exist, the front air intake and the sub fan can be omitted.
  • the sub-fan can be omitted even in a configuration in which the heat exchange device 25 has a front heat exchange unit 35.
  • the heat exchange device 25 includes the assembly of the heat transfer tube 28 and the fin 31 (see FIG. 4) arranged in two rows in the air flow direction.
  • the heat transfer tubes 28 in each row are communicated with each other by a connecting header 58 at one end in the longitudinal direction.
  • a liquid side header 29 through which the liquid refrigerant flows is connected to the other end of the heat transfer tube 28 in one row, and a gas side header 30 through which the gas refrigerant flows is connected to the other end of the heat transfer tube 28 in the other row.
  • FIG. 7 is a perspective view of the heat pump device according to the second embodiment.
  • FIG. 8 is a schematic horizontal sectional view of the heat pump device.
  • FIG. 9 is a schematic vertical sectional view of the heat pump device.
  • FIG. 10 is a perspective view showing a fan and a fan housing.
  • the heat pump device 10 of the present embodiment is an outdoor unit as in the first embodiment.
  • the outdoor unit 10 includes a housing 11, a heat exchange device 25, and a fan device 26.
  • the housing 11 is formed in a rectangular parallelepiped as in the first embodiment.
  • the housing 11 has an upper wall 12, a lower wall 13, a left side wall 14, a right side wall 15, a front side wall 16, and a rear side wall 17.
  • a left air intake 19 and a right air intake 20 are formed on the left side wall 14 and the right wall 15, respectively.
  • One upper air outlet (first air outlet) 61 is formed on the upper wall 12 of the housing 11.
  • One lower air outlet (second air outlet) 62 is formed on the front side wall 16 of the housing 11.
  • Protective nets 24 and 74 are provided at the upper air outlet 61 and the lower air outlet 62.
  • the heat exchange apparatus 25 has a left heat exchange unit 33 and a right heat exchange unit 34 that exchange heat between air and the refrigerant.
  • the left heat exchange unit 33 and the right heat exchange unit 34 are separated from each other in the left-right direction and are independent of each other.
  • the left side heat exchange unit 33 and the right side heat exchange unit 34 are connected by a refrigerant pipe (not shown) and are continuous as a path through which the refrigerant flows.
  • the fan device 26 does not include the sub fan (second fan) 38 (see FIG. 3) in the first embodiment, but includes only the fan 65 corresponding to the main fan (first fan) 37.
  • the fan 65 has a left wing portion 71, a right wing portion 72, a motor 43, a support base 44, and the like, similarly to the main fan 37 of the first embodiment.
  • the fan 65 of the present embodiment is composed of a mixed flow fan.
  • the left wing portion 71 and the right wing portion 72 each include a plurality of blades at intervals in the circumferential direction.
  • the blades of the left wing portion 71 and the blades of the right wing portion 72 are arranged so as to be out of phase in the circumferential direction.
  • the fan 65 may be a centrifugal fan.
  • the left wing portion 71 and the right wing portion 72 of the fan 65 are housed in the fan housing 46. Similar to the first embodiment, the fan housing 46 has a left wall portion (first wall portion) 47, a right wall portion (second wall portion) 48, a front wall portion (third wall portion) 49, and a rear wall portion. It has a (fourth wall portion) 50 and a bottom wall portion 51.
  • a left suction port (first suction port) 47a is formed on the left wall portion 47 of the fan housing 46.
  • a right suction port (second suction port) 48a is formed on the right wall portion 48 of the fan housing 46.
  • An upper discharge port (first discharge port) 63 that opens upward is formed at the upper end of the fan housing 46.
  • the front wall portion 49 of the fan housing 46 of the present embodiment does not have its upper side inclined diagonally upward and rearward, but extends linearly along the vertical direction. .. Therefore, the upper discharge port 63 is formed in a wider range in the front-rear direction than the first discharge port 52 of the first embodiment. Specifically, the upper discharge port 63 is formed in a range extending over the lengths of the left and right heat exchange portions 33, 34 in the front-rear direction, and more specifically, in a range wider than the lengths of the left and right heat exchange portions 33, 34. Has been done.
  • the upper discharge port 63 faces the upper air outlet 61 formed on the upper wall 12 of the housing 11, and is formed to have substantially the same size as the upper air outlet 61.
  • the upper air outlet 61 is also formed within a range extending in the front-rear direction of the left and right heat exchange portions 33 and 34.
  • a lower discharge port (second discharge port) 64 is formed on the front wall portion 49 of the fan housing.
  • the lower discharge port 64 opens toward the front and is arranged so as to face the lower air outlet 62 formed on the front side wall 16 of the housing 11.
  • the lower discharge port 64 is formed to have substantially the same size as the lower air outlet 62.
  • the lower discharge port 64 may be formed so as to be smaller than the lower air outlet 62 and arranged within the range of the lower air outlet 62 when viewed from the front side.
  • the upper ends of the lower discharge port 64 and the lower air outlet 62 are located at the position where the distance T between the fan 65 and the front wall portion 49 is the narrowest, that is, the position on the horizontal line L1 passing through the axis C1 of the fan 37 or the position thereof. It is located in the vicinity of.
  • the vertical center position L2 of the lower discharge port 64 and the lower air outlet 62 is arranged below the position of the axial center C1.
  • the left wing portion 71 and the right wing portion 72 of the fan 65 suck air into the fan housing 46 from the left and right air intake ports 19 and 20 by rotating, and discharge air from the upper discharge port 63 and the lower discharge port 64.
  • the air discharged from the upper discharge port 63 is blown out from the upper air outlet 61 to the upper side of the housing 11 as shown by an arrow in FIG.
  • the air discharged from the lower discharge port 64 is blown out from the lower air outlet 62 to the front of the housing 11 as shown by an arrow in FIG.
  • the fan device 26 of the present embodiment does not include the sub-fan 38 as in the first embodiment. Therefore, the wind speed of the air passing near the outer edge portions of the left side heat exchange unit 33 and the right side heat exchange unit 34 may decrease.
  • a mixed flow fan is used as the left and right blade portions 71 and 72, and this mixed flow fan has a larger effective suction area than the centrifugal fan. Therefore, even if the sub-fan 38 as in the first embodiment is not provided, the wind velocity of the air passing through the left side heat exchange unit 33 and the right side heat exchange unit 34 can be increased in a wide range, and the left side heat exchange unit 33 can be increased. And the heat exchange efficiency in the right heat exchange unit 34 can be improved.
  • the air flowing forward on the lower side of the fan 65 passes through the lower discharge port 64 and is blown out from the lower air outlet 62 to the outside of the housing 11.
  • the ventilation resistance in the fan housing 46 can be reduced, the air volume of the fan 65 can be increased, and the noise can be reduced.
  • the upper discharge port 63 and the upper air outlet 61 are formed over a wide range over the lengths of the left and right heat exchange portions 33 and 34 in the front-rear direction, the resistance of the flow of air discharged upward is also reduced, and the fan The air volume of 65 can be increased.
  • the front wall portion 49 of the fan housing 46 and the front side wall portion 16 of the housing 11 may be used.
  • the front wall portion 49 of the fan housing 46 may be omitted, and the front ends of the left and right wall portions 47, 48 of the fan housing 46 may be directly connected to the front side wall 16 of the housing 11.
  • the bottom wall portion 51 of the fan housing 46 and the lower wall 13 of the housing 11 may also be used.
  • the bottom wall portion 51 of the fan housing 46 may be omitted, and the lower ends of the left and right wall portions 47, 48 and the front and rear wall portions 49, 50 of the fan housing 46 may be directly connected to the lower wall 13 of the housing 11.
  • the outdoor units 10 of the first and second embodiments described above include a housing 11 having a left side wall 14, a right side wall 15, and an upper wall 12 facing each other, and a heat exchange device 25 housed in the housing 11. And fans 37, 65.
  • the left side wall 14 and the right wall 15 are provided with a left air inlet 19 and a right air inlet 20, respectively, and the upper wall 12 is provided with a first air outlet (rear air outlet 22 or upper air outlet 61). ) Is provided.
  • the heat exchange device 25 includes a left side heat exchange unit 33 and a right side heat exchange unit 34 arranged along the left side wall 14 and the right side wall 15.
  • the fans 37 and 65 are arranged so as to be sandwiched between the left heat exchange unit 33 and the right heat exchange unit 34.
  • the fans 37 and 65 have a rotation axis C1 in a direction intersecting the left side wall 14 and the right side wall 15.
  • the fans 37 and 65 take in air from the left air intake 19 and the right air intake 20 and discharge the air to the first air outlets 22 and 61.
  • the main fan 37 of the first embodiment is a centrifugal fan, the static pressure is higher than that of the axial fan. More specifically, the decrease in air volume with respect to the static pressure outside the machine is smaller than that of an axial fan. Therefore, the air volume can be secured even if there are obstacles in the surroundings or the small housing 11.
  • the main fan 37 may be a mixed flow fan.
  • the housing 11 is a rectangular parallelepiped, and the left and right heat exchange portions 33 and 34 are arranged along the left side wall 14 and the right side wall 15 having a larger area among the four side walls, and are formed on the left and right side walls 14 and 15. Since air is taken in from both the left air intake 19 and the right air intake 20 to exchange heat, the heat exchange capacity can be further improved.
  • the left side heat exchange unit 33 and the right side heat exchange unit 34 are separated.
  • the housing 11 has a front side wall 16 that connects adjacent ends of the left side wall 14 and the right side wall 15, and a lower air outlet 62 is formed on the front side wall 16. Therefore, air can be blown not only from the upper air outlet 61 but also from the lower air outlet 62, the ventilation resistance in the housing 11 can be reduced, and the air volume of the fan 65 can be increased.
  • the outdoor unit 10 of the second embodiment includes a fan housing 46 for accommodating the fan 65 in the housing 11, and the fan housing 46 has an upper discharge port 63 facing the upper air outlet 61 and a lower portion. It has a lower discharge port 64 facing the side air outlet 62. Even when the fan housing 46 is provided in this way, air is blown out from the upper air outlet 61 and the lower air outlet 62 through the upper discharge port 63 and the lower discharge port 64 to increase the air volume of the fan 65. can do.
  • the housing 11 of the first embodiment has a front side wall 16 that connects adjacent ends of the left side wall 14 and the right side wall 15, and the front side wall 16 is provided with a front side air intake 21.
  • the heat exchange device 25 includes a front heat exchange unit 35 arranged along the front side wall 16. Therefore, the heat exchange device 25 has heat exchange portions 33, 34, 35 arranged along the left and right side walls 14, 15 and the front side wall 16 of the housing 11. Thereby, the heat exchange capacity can be further improved.
  • the rotation axis C1 of the fans 37 and 65 is arranged in a direction intersecting the left side wall 14 and the right side wall 15, and the fans 37 and 65 are the left side heat exchange portions 33. Since it is arranged so as to be sandwiched between the right side heat exchange unit 34 and the right side heat exchange unit 34, the size of the outdoor unit 10 can be reduced.
  • the left side air intake 19 (or right side air intake 19) and the front side wall 16 are respectively arranged adjacent to each other on the left side wall 14 (or right side wall 15). 20) and a front air intake 21 are provided, and a rear air outlet 22 is provided on the upper wall 12.
  • the heat exchange device 25 includes a left side heat exchange unit 33 (or a right side heat exchange unit 34) and a front side heat exchange unit 35 arranged along the left side wall 14 (or the right side wall 15) and the front side wall 16.
  • the fan device 26 has a rotation axis C1 in a direction intersecting the left side wall 14 (or right side wall 15), and takes in air from the left side air intake 19 (or right side air intake 20) to take in air from the rear side air outlet. It includes a main fan 37 that discharges air to 22 and a sub fan 38 that takes in air from the front air intake 21.
  • the main fan 37 and the sub fan 38 are driven, so that the left air intake 19 (or the left air intake 19) formed on the left side wall 14 (or right side wall 15) and the front side wall 16 adjacent to each other of the housing 11 Alternatively, air is sucked from the right air intake 20) and the front air intake 21, respectively, and air is efficiently supplied to the left heat exchange unit 33 (or the right heat exchange unit 34) and the front heat exchange unit 35. , The heat exchange capacity of the heat exchange device 25 can be improved.
  • the diameter of the sub fan 38 is smaller than the diameter of the main fan 37. Therefore, the air volumes of the main fan 37 and the sub fan 38 can be optimized according to the sizes of the left heat exchange unit 33, the right heat exchange unit 34, and the front heat exchange unit 35.
  • the heat exchange device 25 includes the left side heat exchange unit 33, the right side heat exchange unit 34, and the front side heat arranged along the left and right side walls 14, 15 and the front side wall 16 of the housing 11.
  • the exchange unit 35 is provided. These can also be configured by separate heat exchangers.
  • the left side heat exchange unit 33, the right side heat exchange unit 34, and the front side heat exchange unit 35 are integrally formed, so that these are configured by separate heat exchangers.
  • the structure of the heat exchange device 25 can be simplified and downsized as compared with the above.
  • the outdoor unit 10 is arranged between the main fan 37 and the sub fan 38, and has a fan housing 46 (partition member) for partitioning an air flow generation region of each fan 37, 38. I have. Therefore, it is possible to suppress the air flows generated by the main fan 37 and the sub fan 38 from interfering with each other.
  • the upper wall 12 of the housing 11 is provided with a front air outlet 23 for blowing out the air flow generated by the sub fan 38. Therefore, the sub-fan 38 can take in air from the front air intake 21 of the front side wall 16 and smoothly blow out the air from the upper wall 12.
  • the sub-fan 38 is a propeller fan having a rotation axis in a direction intersecting the upper wall 12. Therefore, an air flow in the vertical direction is generated by the sub fan 38, the air taken in from the front air intake port 21 is passed through the front heat exchange unit 35, and then the air can be blown upward from the front air outlet 23.
  • the sub fan 38 is arranged above the upper end of the main fan 37. Therefore, the sub-fan 38 makes it easier to generate an upward air flow. As a result, the heat exchange capacity of the front heat exchange unit 35 can be further improved.
  • the sub fan 38 is arranged at a position overlapping the main fan 37 in a plan view. Therefore, the housing 11 can be miniaturized.
  • the sub fan 38 is not limited to the propeller fan, and may be a centrifugal fan such as a sirocco fan. In this case as well, similar effects can be expected.
  • the front air outlet 23 is arranged on the side of the upper wall 12 closer to the front side wall 16, and the rear air outlet 22 is arranged on the side away from the front side wall 16. Has been done. Therefore, the air flow generated by the sub fan 38 and the main fan 37 can be blown out from the upper wall 12 without interfering with each other.
  • the outdoor unit 10 includes a controller 57 that individually controls the operation of the main fan 37 and the sub fan 38. Therefore, the operation of the main fan 37 and the sub fan 38 can be individually controlled according to the heat exchange capacity required during operation.
  • the upper air outlet 61 is the length of the left side heat exchange part 33 and the right side heat exchange part 34 in the horizontal direction (front-back direction) along the left side wall 14 and the right side wall 15. It is formed in the range of. Therefore, the upper air outlet 61 can be expanded in the front-rear direction to increase the air volume of the fan 65.
  • the machine room S2 is formed on one side of the housing 11 in the horizontal direction (front-back direction) along the left side wall 14 and the right side wall 15, and the first discharge port is formed.
  • the first discharge ports 52 and 63 overlap the machine room S2. Therefore, the first discharge ports 52 and 63 can be expanded in the front-rear direction to increase the air volume of the fan.
  • the fan 65 is a mixed flow fan. Therefore, the effective suction area can be expanded as compared with a centrifugal fan such as a turbo fan, and heat can be efficiently exchanged between the left heat exchange unit 33 and the right heat exchange unit 34.
  • the heat transfer tube 28 of the heat exchange device 25 is made of a flat multi-hole tube made of aluminum or an aluminum alloy. Therefore, the heat exchange capacity can be enhanced as compared with the case where a circular tube is used as the heat transfer tube 28. By using the heat transfer tube 28 made of aluminum or aluminum alloy, it is possible to reduce the weight and cost of the heat exchange device 25.
  • the outdoor unit 10 supports the fans 37, 65 in a cantilevered manner on one side of the fans 37, 65 in the direction of the rotation axis. Have.
  • the housing 11 can be downsized by cantilevering the fans 37 and 65 with the support base 44. Since the support base 44 has to be arranged on the air passages of the fans 37 and 65, the air resistance due to the support base 44 is provided by providing the support base 44 only on one side of the fans 37 and 65 in the direction of the rotation axis. Can be suppressed.
  • the bottom area of the housing 11 is 0.6 m 2 or less.
  • an elevator with a minimum maximum capacity (6 seats) has an indoor area of 1.17 m 2 or more. Therefore, when the bottom area of the housing 11 is 0.6 m 2 or less, the outdoor unit 10 can be loaded on the elevator and transported. Therefore, an elevator can be used when the outdoor unit 10 is installed on the rooftop of a building, and heavy machinery such as a crane is not required, so that the cost, time, personnel, etc. related to the installation of the air conditioning equipment can be reduced. ..
  • the weight of the outdoor unit 10 is 110 kg or less. Therefore, the outdoor unit 10 can be transported by two people.
  • the heat exchange device 25 is not limited to the above embodiment.
  • the case where the heat pump device is the outdoor unit 10 has been described, but it can also be applied to the indoor unit of the air conditioner.
  • the left side wall 14 of the housing 11 is used as the first side wall and the right side wall 15 is used as the second side wall.
  • the left side wall 14 is used as the second side wall and the right side wall 15 is used as the first side wall. May be good.
  • the left air intake 19 may be the second air intake and the right air intake 20 may be the first air intake.
  • the left side heat exchange unit 33 of the heat exchange device 25 may be the second heat exchange unit, and the right side heat exchange unit 34 may be the first heat exchange unit.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Geometry (AREA)
  • Other Air-Conditioning Systems (AREA)

Abstract

L'invention concerne un dispositif pompe à chaleur (10) comprenant : une enveloppe (11) comportant une première paroi latérale (14) et une seconde paroi latérale (15) orientées l'une vers l'autre, et une paroi supérieure (12) ; et un échangeur de chaleur (25) et des ventilateurs (37, 65) logés dans l'enveloppe (11). La première paroi latérale (14) est munie d'une première admission d'air (19), et la seconde paroi latérale (15) est munie d'une seconde admission d'air (20), respectivement ; la paroi supérieure (12) est munie d'une première sortie d'air (22) ; l'échangeur de chaleur (25) comprend une première unité d'échange de chaleur (33) agencée le long de la première paroi latérale (14), et une seconde unité d'échange de chaleur (34) agencée le long de la seconde paroi latérale (15) ; et les ventilateurs (37, 65) sont conçus pour être intercalés entre la première unité d'échange de chaleur (33) et la seconde unité d'échange de chaleur (34), pour avoir un axe de rotation (40) dans la direction croisant la première paroi latérale (14) et la seconde paroi latérale (15), pour admettre de l'air à partir de la première admission d'air (19) et de la seconde admission d'air (20), et pour évacuer de l'air à travers la première sortie d'air (22).
PCT/JP2020/015512 2019-04-05 2020-04-06 Dispositif pompe à chaleur WO2020204208A1 (fr)

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
JP2019072995A JP2020169788A (ja) 2019-04-05 2019-04-05 ヒートポンプ装置
JP2019-072995 2019-04-05
JP2019073040 2019-04-05
JP2019-073040 2019-04-05
JP2020-066037 2020-04-01
JP2020066037A JP2020173090A (ja) 2019-04-05 2020-04-01 ヒートポンプ装置

Publications (1)

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WO2020204208A1 true WO2020204208A1 (fr) 2020-10-08

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Application Number Title Priority Date Filing Date
PCT/JP2020/015512 WO2020204208A1 (fr) 2019-04-05 2020-04-06 Dispositif pompe à chaleur

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024214284A1 (fr) * 2023-04-14 2024-10-17 三菱電機株式会社 Dispositif à cycle de réfrigération

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4617390Y1 (fr) * 1968-05-24 1971-06-17
JPS553546A (en) * 1978-06-20 1980-01-11 Sanyo Electric Co Airrcooled condenser
JPS55140068A (en) * 1979-04-17 1980-11-01 Hitachi Ltd Outdoor unit for separateetype room air conditioner
JPS57190372U (fr) * 1981-05-28 1982-12-02
JPH11218345A (ja) * 1998-02-03 1999-08-10 Daikin Ind Ltd 空気調和装置の室外機

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4617390Y1 (fr) * 1968-05-24 1971-06-17
JPS553546A (en) * 1978-06-20 1980-01-11 Sanyo Electric Co Airrcooled condenser
JPS55140068A (en) * 1979-04-17 1980-11-01 Hitachi Ltd Outdoor unit for separateetype room air conditioner
JPS57190372U (fr) * 1981-05-28 1982-12-02
JPH11218345A (ja) * 1998-02-03 1999-08-10 Daikin Ind Ltd 空気調和装置の室外機

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024214284A1 (fr) * 2023-04-14 2024-10-17 三菱電機株式会社 Dispositif à cycle de réfrigération

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