WO2023084919A1 - Outdoor unit for air-conditioner - Google Patents

Outdoor unit for air-conditioner Download PDF

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Publication number
WO2023084919A1
WO2023084919A1 PCT/JP2022/034906 JP2022034906W WO2023084919A1 WO 2023084919 A1 WO2023084919 A1 WO 2023084919A1 JP 2022034906 W JP2022034906 W JP 2022034906W WO 2023084919 A1 WO2023084919 A1 WO 2023084919A1
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WO
WIPO (PCT)
Prior art keywords
air supply
air
outdoor
fan
air conditioner
Prior art date
Application number
PCT/JP2022/034906
Other languages
French (fr)
Japanese (ja)
Inventor
将 牧角
寛之 多田
智哉 村上
彩咲子 高垣
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
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
Priority to CN202280072664.1A priority Critical patent/CN118176389A/en
Publication of WO2023084919A1 publication Critical patent/WO2023084919A1/en

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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
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0035—Indoor units, e.g. fan coil units characterised by introduction of outside air to the room
    • 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
    • F24F1/56—Casing or covers of separate outdoor units, e.g. fan guards
    • 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
    • F24F1/56—Casing or covers of separate outdoor units, e.g. fan guards
    • F24F1/58—Separate protective covers for outdoor units, e.g. solar guards, snow shields or camouflage

Definitions

  • the present disclosure relates to outdoor units of air conditioners.
  • Patent Document 1 Japanese Patent Application Laid-Open No. 2014-70814
  • the outdoor unit has a fan that draws in outdoor air and blows it toward the indoor unit.
  • the air blown out from the fan is guided to the indoor unit by an air supply hose after leaving the outdoor unit.
  • One end of the air supply hose is connected to a connection port provided on the side of the outdoor unit.
  • the other end of the air supply hose is arranged inside the indoor unit.
  • the duct has a horizontal duct section and an inclined duct section. This horizontal duct section allows the air from the fan to flow horizontally.
  • the air that has flowed into the horizontal duct portion flows obliquely downward and reaches the connection port on the side surface of the outdoor unit.
  • the duct is formed in such a complicated structure, the airflow between the fan and the connection port on the side of the outdoor unit has many bends, and the air flows smoothly from the fan to the connection port on the side of the outdoor unit. It becomes difficult to flow into
  • the outdoor unit of the conventional air conditioner described above still has room for improvement in terms of the ventilation resistance of the air sent to the indoor unit.
  • An object of the present disclosure is to provide an outdoor unit of an air conditioner that can reduce the ventilation resistance of air supplied to the indoor unit.
  • An outdoor unit of an air conditioner includes: an outdoor air conditioner connected to an indoor unit via a refrigerant pipe and having a control unit; An air supply device connected to the indoor unit via an air supply duct and arranged on the outdoor air conditioner, The air supply device a first casing having a suction port for sucking air, a connection port to which the air supply duct is connected, and an air supply path for guiding air from the suction port to the connection port; a fan provided in the air supply path for blowing air sucked from the suction port to the connection port; a heater provided in the air supply path for heating the air sucked from the suction port; The connection port is arranged on the side surface of the first casing, The fan and the heater are controlled by the controller.
  • connection port on the side surface of the first casing, air can flow smoothly from the fan to the connection port. Therefore, the ventilation resistance of the air supplied to the indoor unit can be reduced.
  • the fan is arranged downstream of the heater in the air supply path.
  • the suction port is provided on a side surface of the first casing.
  • the air supply device a wall provided upstream of the heater in the air supply path so as to block part of the air supply path and extend upward from the bottom of the air supply path; and a net member provided in the remaining portion of the air supply path, which is not blocked by the wall, on the upstream side of the heater.
  • the walls and the mesh member can suppress the intrusion of foreign matter.
  • An outdoor unit of an air conditioner includes A cover attached to the outdoor air conditioner and the air supply device,
  • the outdoor air conditioner has a second casing and a closing valve arranged on a side surface of the second casing and connected to the refrigerant pipe,
  • the cover covers the suction port and the closing valve, and has an opening positioned below the suction port.
  • the opening of the cover is located below the intake port of the first casing, it is possible to prevent dust, water, etc., which have flowed in through the opening of the cover, from entering the second casing through the intake port.
  • FIG. 1 is an external view of an air conditioner according to a first embodiment of the present disclosure
  • FIG. It is a circuit diagram of the air conditioner.
  • Fig. 3 is a control block diagram of the outdoor unit of the air conditioner;
  • Fig. 3 is a control block diagram of the indoor unit of the air conditioner;
  • It is an external appearance perspective view of the said outdoor unit.
  • Fig. 3 is an exploded perspective view of the outdoor unit;
  • Fig. 3 is an exploded perspective view of the air supply device of the outdoor unit; It is a top view of the said air supply apparatus.
  • It is a figure explaining the air supply route of the said air supply apparatus.
  • It is a figure explaining the flow of the air of the suction port vicinity of the air supply path
  • FIG. 7 is an external perspective view of an outdoor unit of an air conditioner according to a second embodiment of the present disclosure; It is a right view of the said outdoor unit.
  • Fig. 3 is an enlarged view of a handle portion and its peripheral portion of the valve cover of the outdoor unit;
  • FIG. 1 is an external view of an air conditioner according to the first embodiment of the present disclosure.
  • the above air conditioner is a pair type air conditioner comprising an indoor unit 1 and an outdoor unit 2.
  • the outdoor unit 2 has an outdoor air conditioner 3 connected to the indoor unit 1 via refrigerant pipes L4 and L5, and an air supply device 4 connected to the indoor unit 1 via an air supply duct 5.
  • FIG. 2 is a circuit diagram of the refrigerant circuit RC provided in the air conditioner. 2, illustration of a joint 409, a socket 410, etc., which will be described later, is omitted.
  • the indoor unit 1 of the air conditioner is, for example, a wall-mounted indoor unit attached to an indoor wall surface.
  • the indoor unit 1 includes an indoor heat exchanger 11 and an indoor fan 12 for sending air to the indoor heat exchanger 11.
  • the indoor unit 1 also includes an indoor controller 100 that controls the indoor fan 12, the electromagnetic valve 13, and the like.
  • the indoor heat exchanger 11 is located upstream of the indoor fan 12 with respect to the air flow by the indoor fan 12 .
  • the indoor heat exchanger 11 has a main body heat exchange portion 11a, an auxiliary heat exchange portion 11b, and an electromagnetic valve 13 to exchange heat between the air from the indoor fan 12 and the refrigerant.
  • a closing valve 36 is connected to one end of the auxiliary heat exchange section 11b via a refrigerant pipe L4.
  • a closing valve 37 is connected to one end of the main body heat exchange portion 11a via a refrigerant pipe L5.
  • the other end of the auxiliary heat exchange portion 11b is connected to the other end of the main body heat exchange portion 11a via the refrigerant pipe L11, the solenoid valve 13, and the refrigerant pipe L12.
  • a cross-flow fan for example, is adopted as the indoor fan 12 .
  • This cross-flow fan blows out the air, the temperature of which has been adjusted by the indoor heat exchanger 11, toward the room.
  • the outdoor air conditioner 3 of the air conditioner includes a compressor 31, a four-way switching valve 32, an outdoor heat exchanger 33, an electric expansion valve 34 as an example of an expansion mechanism, an accumulator 35, a closing valve 36, 37 , an outdoor fan 30 that sends air to the outdoor heat exchanger 33 , and an outdoor controller 300 .
  • the outdoor control unit 300 is an example of a control unit.
  • the outdoor heat exchanger 33 is located upstream of the outdoor fan 30 with respect to the air flow by the outdoor fan 30 .
  • the refrigerant flowing inside the outdoor heat exchanger 33 exchanges heat with the air from the outdoor fan 30 .
  • the air supply device 4 includes a heater 41 , an air supply fan 42 , a flexible hose 43 and a damper 44 .
  • This air supply device 4 does not include a controller such as the outdoor controller 300 .
  • the air supply fan 42 is an example of a fan that blows out the air sucked from the suction port 40 from the connection port 45 .
  • An air supply path P1 is provided inside the air supply device 4 .
  • the air supply path P1 guides the air sucked from the suction port 40 to the connection port 45 through the heater 41, the air supply fan 42, the flexible hose 43, and the damper 44 when the air supply fan 42 is driven. At this time, the air is appropriately heated by the heater 41 and supplied to the indoor unit 1 via the connection port 45 and the air supply duct 5 .
  • the air supply fan 42 is arranged immediately downstream of the heater 41 in the air supply path P1. As a result, the air supply fan 42 can suck in the air immediately after being heated by the heater 41 .
  • the refrigerant circuit RC of the air conditioner consists of an indoor heat exchanger 11, a compressor 31, a four-way switching valve 32, an outdoor heat exchanger 33, an electric expansion valve 34, an accumulator 35 and refrigerant pipes L1 to L7. More specifically, the indoor heat exchanger 11, the compressor 31, the four-way switching valve 32, the outdoor heat exchanger 33, the electric expansion valve 34 and the accumulator 35 are fluidly connected by refrigerant pipes L1 to L7. Thereby, an annular refrigerant circuit RC is configured. When the compressor 31 is driven, refrigerant circulates through the refrigerant circuit RC.
  • FIG. 3 is a control block diagram of the outdoor air conditioner 3 and the air supply device 4.
  • the outdoor air conditioner 3 includes an outdoor heat exchanger temperature sensor T1 that detects the temperature of the outdoor heat exchanger 33, an outdoor air temperature sensor T2 that detects the outside air temperature, and an evaporating temperature sensor T3 that detects the evaporating temperature of the electric expansion valve 34. and
  • the outdoor control unit 300 operates the compressor 31, the four-way switching valve 32, the electric expansion valve 34, and the outdoor fan 30 based on signals from the outdoor heat exchanger temperature sensor T1, the outdoor air temperature sensor T2, the evaporation temperature sensor T3, and the like. Control.
  • the outdoor controller 300 also controls the heater 41 , the air supply fan 42 and the damper 44 .
  • the outdoor control unit 300 includes a fan driving unit that drives the air supply fan 42 and a damper driving unit that drives the damper 44 .
  • FIG. 4 is a control block diagram of the indoor unit 1.
  • the indoor unit 1 includes an indoor heat exchanger temperature sensor T4 that detects the temperature of the indoor heat exchanger 11, an indoor temperature sensor T5 that detects the temperature in the room where the indoor unit 1 is installed, and the indoor unit 1. and a humidity sensor H for detecting the indoor humidity.
  • the indoor control unit 100 and the outdoor control unit 300 each include a CPU (Central Processing Unit) that performs calculations, etc., a ROM (Read Only Memory), a RAM (Random Access Memory). ⁇ Memory) etc. are provided.
  • the ROM and RAM of the indoor controller 100 store programs, data, and the like necessary for controlling the indoor unit 1 .
  • the ROM and RAM of the outdoor control unit 300 store programs, data, and the like necessary for controlling the outdoor air conditioner 3 and the air supply device 4 .
  • the outdoor controller 300 of the outdoor air conditioner 3 and the indoor controller 100 of the indoor unit 1 communicate with each other via a communication line (not shown).
  • the air conditioner is equipped with a remote controller (hereinafter referred to as "remote controller").
  • remote controller By operating this remote controller, automatic operation, cooling operation, heating operation, dehumidifying operation, air supply operation, etc. can be started or stopped.
  • the air supply operation refers to an operation in which outdoor air is supplied to the indoor unit 1 via the air supply duct 5 in order to ventilate the room.
  • the air supply operation may be performed simultaneously with the automatic operation, the cooling operation, the heating operation, the dehumidifying operation, or the like, or may be performed independently.
  • FIG. 5 is an external perspective view of the outdoor unit 2 including the outdoor air conditioner 3 and the air supply device 4.
  • FIG. 5 is an external perspective view of the outdoor unit 2 including the outdoor air conditioner 3 and the air supply device 4.
  • the air supply device 4 is arranged on the outdoor air conditioner 3 . Further, the air supply device 4 is fixed to the outdoor air conditioner 3 with screws, for example.
  • FIG. 6 is an exploded perspective view of the outdoor unit 2.
  • FIG. 7 is an exploded perspective view of the air supply device 4.
  • FIG. 6 and 7, 420 is a rectangular mesh member.
  • the outdoor air conditioner 3 of the outdoor unit 2 includes, as shown in FIG. ing.
  • the front panel 302, right side plate 304 and left side plate 306 constitute an example of a second casing.
  • An outdoor heat exchanger 33 having an L-shape in plan view is attached to the bottom plate 301 .
  • a right side plate 304 is attached to the right end of the bottom plate 301 .
  • Close valves 36 , 37 (shown in FIG. 2 ) are positioned externally to right side plate 304 and covered by valve cover 305 .
  • a left side plate 306 is attached to the left end of the bottom plate 301 .
  • a space between the partition plate 307 and the right side plate 304 serves as a machine room.
  • a compressor 31 (shown in FIG. 2), an outdoor controller 300, and the like are arranged in this machine room.
  • the shielding plate 308 on the machine room is attached to the upper end of the right side plate 304 to cover the outdoor control section 300 .
  • the front panel 302 is attached to the front edge of each of the bottom plate 301 , the right side plate 304 and the left side plate 306 .
  • a circular hole 302a is provided in the center of the front panel 302 .
  • the grille 303 is attached to the periphery of the circular hole 302a so as to block the circular hole 302a, and faces the outdoor fan 30.
  • the air supply device 4 of the outdoor unit 2 includes a bottom frame 401 with an open top and a top panel 415 that closes the opening of the bottom frame 401 .
  • the bottom frame 401 and the top panel 415 constitute an example of the first casing.
  • a connection port 45 is provided on the right side of the bottom frame 401 . More specifically, the bottom frame 401 has a rectangular bottom portion 401a and side walls 401b provided on the outer peripheral edge of the bottom portion 401a. The connection port 45 is provided on the right side of the side wall 401b.
  • a bell mouth 402 is attached to the left portion of the bottom portion 401a (the portion opposite to the connection port 45 with respect to the center of the bottom portion 401a in the longitudinal direction).
  • a fan housing 403 is attached to the bell mouth 402 so as to cover the bell mouth 402 .
  • a portion of the recess 401d is provided in a portion of the bottom portion 401a located below the bell mouth 402. As shown in FIG. Other portions of the recess 401 d are located below the heater 41 . The air that has passed through the heater 41 is guided to the air supply fan 42 by the recess 401d.
  • the air supply fan 42 is arranged in the space between the bell mouth 402 and the fan housing 403 .
  • a fan motor 404 for rotating the air supply fan 42 is attached to the upper surface of the fan housing 403 .
  • a heater 41 is attached to the rear portion of the bottom portion 401a in the center in the longitudinal direction. On the right side of the heater 41 (connection port 45 side), a guide wall 401c extends upward from the bottom portion 401a. Also, the heater 41 is covered with an insulating sheet 414 .
  • a blowout port 403a is provided on the right side of the fan housing 403.
  • One end of a flexible hose 43 is connected to the outlet 403a.
  • a damper 44 is arranged on the right portion of the bottom portion 401a (the portion on the connection port 45 side with respect to the center of the bottom portion 401a in the longitudinal direction).
  • the damper 44 has an inlet on its upper surface that serves as an air inlet, and an outlet that serves as an air outlet on its lower surface.
  • the inlet of this damper 44 is connected to the other end of the flexible hose 43 via a joint 406 .
  • One end of a connecting portion 408 is connected to the outlet of the damper 44 via a joint 407 .
  • the connecting part 408 is fixed to the bottom frame 401 .
  • the connecting portion 408 is inserted through the connection port 45 provided in the side wall 401b, and the other end is positioned outside the side wall 401b.
  • the other end of this connecting portion 408 is connected to socket 410 via joint 409 .
  • One end of the air supply duct 5 (shown in FIGS. 1 and 2) is connected to the socket 410 .
  • Joint 409 and socket 410 are covered with cover 412 .
  • Cover 412 is fixed to side wall 401b.
  • a shielding plate 413 is attached to the lower surface of the bottom portion 401 a so as to be positioned below the heater 41 .
  • the top panel 415 is attached to the upper part of the side wall 401b so as to cover the parts arranged on the bottom part 401a.
  • FIG. 8 is a top view of the air supply device 4 with the upper panel 415 removed, and FIG.
  • the heater 41, the air supply fan 42 and the damper 44 are arranged on the bottom portion 401a of the bottom frame 401 so as not to overlap each other in plan view. In other words, one of heater 41, supply fan 42 and damper 44 is not stacked with any of the others.
  • the air sucked from the outside of the air supply device 4 through the suction port 40 is formed by the heater 41, the bell mouth 402, the fan housing 403, the flexible hose 43, the damper 44 and the bottom frame 401.
  • the air After passing through the supplied air supply path P1 (the path indicated by the arrow in FIG. 9), the air is blown out from the connection port 45 .
  • the air supply fan 42 is arranged on the left side of the heater 41 .
  • the upstream end of the flexible hose 43 is arranged in front of the heater 41 .
  • the flexible hose 43 is an example of a path member forming a part of the air supply path P1.
  • a suction port 40 is provided on the rear surface of the side wall 401b of the bottom frame 401 (see FIG. 10).
  • the suction port 40 is composed of a plurality of slits provided in the side wall 401b.
  • a wall portion 430 faces the suction port 40 .
  • the wall portion 430 is provided on the bottom portion 401a of the bottom frame 401 with a gap from the suction port 40 and extends upward from the bottom portion 401a.
  • the wall portion 430 is provided on the upstream side of the heater 41 in the air supply path P1 so as to block part of the air supply path P1 and extend upward from the bottom of the air supply path P1.
  • a net member 420 is provided in the remaining portion of the air supply path P1 that is not blocked by the wall portion 430 .
  • the mesh member 420 is, for example, a 16-mesh (1.1 mm ⁇ 1.1 mm) plain-woven wire mesh made of stainless steel wire with a wire diameter of 0.55 mm (JIS standard G3555). Such a plain-woven wire mesh can suppress deposition of dust on the heater 41, and can improve reliability.
  • FIG. 10 is a diagram for explaining the flow of air near the suction port 40 of the air supply path P1 of the air supply device 4. As shown in FIG. FIG. 10 is a cross section seen from line XX of FIG.
  • the air sucked from the suction port 40 by the air supply fan 42 collides with the wall 430 , passes through the upper mesh member 420 , climbs over the wall 430 , and reaches the heater 41 . go downwards.
  • FIG. 11A and 11B are diagrams for explaining the inclination of the flexible hose 43 of the air supply device 4.
  • FIG. 11 As shown in FIG. 11, one end of the flexible hose 43 connected to the bell mouth 402 and the outlet 403a of the fan housing 403 is positioned lower than the other end of the flexible hose 43 (on the side of the damper 44).
  • the outdoor control unit 300 controls the air supply operation. More specifically, while the air supply operation is stopped, the heater 41 is turned off (de-energized), the air supply fan 42 is stopped, and the damper 44 is closed. Then, for example, when the air supply operation is selected by indoor remote control operation, the indoor control unit 100 transmits a command signal for the air supply operation to the outdoor control unit 300 .
  • the outdoor controller 300 opens the damper 44 and drives the air supply fan 42 in response to a command signal from the indoor controller 100 . As a result, outdoor air is sucked into the air supply path P ⁇ b>1 from the suction port 40 and supplied to the indoor unit 1 via the connection port 45 and the air supply duct 5 .
  • the heater 41 can supply dry air to the indoor unit 1 via the air supply duct 5 by turning on (energizing) the heater 41 when a specific condition is satisfied during the air supply operation.
  • the specific condition is a condition (outside air temperature, etc.) that causes dew condensation in the air supply duct 5 .
  • the outdoor controller 300 adjusts the electric power of the heater 41 within a range of 120 W to 350 W based on predetermined conditions.
  • connection port 45 is provided on the right side surface of the bottom frame 401, the bending of the air flow between the supply fan 42 and the connection port 45 is reduced. Therefore, the air blown out by the air supply fan 42 can smoothly flow to the connection port 45 . Therefore, the ventilation resistance of the air supplied to the indoor unit 1 can be reduced.
  • the air supply device 4 does not have a control unit like the outdoor control unit 300, the empty space inside the air supply device 4 can be increased. As a result, the degree of freedom in arranging parts such as the heater 41 and the air supply fan 42 can be increased.
  • the air supply fan 42 immediately downstream of the heater 41 , the humidity of the air sucked by the air supply fan 42 can be lowered by the heater 41 . Therefore, it is possible to suppress the occurrence of dew condensation on the air supply fan 42 .
  • suction port 40 is provided on the rear side surface of the bottom frame 401, complicated bending of the air supply path P1 can be suppressed.
  • the air sucked from the suction port 40 collides with the wall portion 430 and then flows through the net member 420 toward the heater 41 side.
  • the mesh member 420 can trap foreign matter.
  • the heater 41, the air supply fan 42 and the damper 44 are arranged so as not to overlap each other in a plan view, the functional parts such as the heater 41, the air supply fan 42 and the damper 44 can be arranged in a space-saving manner while the casing (401) , 415) can be kept low.
  • the flexible hose 43 is a route member forming part of the air supply route P1
  • the elastically deformable flexible hose 43 attenuates vibrations from the air supply fan 42, thereby reducing noise.
  • the use of the flexible hose 43 increases the degree of freedom in designing the layout.
  • the upstream end of the flexible hose 43 is closer to the heater 41 and has a higher temperature than the downstream end, the upstream end of the flexible hose 43 is warmer than the downstream end of the flexible hose 43 .
  • drying can be performed at the upstream end where the condensed water in the flexible hose 43 collects.
  • the heater 41 is arranged upstream of the air supply fan 42 in the first embodiment, it may be arranged downstream of the air supply fan 42 .
  • connection port 45 is provided on the right side surface of the bottom frame 401 in the first embodiment, it may be provided on the front side surface, the rear side surface, or the left side surface of the bottom frame 401 .
  • the air supply fan 42 is arranged on the left side of the heater 41 in the first embodiment, the air supply fan 42 may be arranged on the right side of the heater 41 .
  • the heater 41 and the air supply fan 42 were arranged so that the heater 41 was closer to the connection port 45 than the air supply fan 42, but the air supply fan 42 was closer to the connection port than the heater 41. It may be closer to 45.
  • suction port 40 is provided on the rear side surface of the bottom frame 401 in the first embodiment, it may be provided on the front surface, rear surface, or left side surface of the bottom frame 401 .
  • the flexible hose 43 is used as the route member forming part of the air supply route P1, but the route member is not limited to this, and may be a resin-molded duct or the like.
  • FIG. 12 is an external perspective view of an outdoor unit 202 of an air conditioner according to the second embodiment of the present disclosure.
  • the configuration other than the outdoor unit 202 is the same as the configuration of the above first embodiment.
  • the outdoor unit 202 includes an air supply device 24 that is different from the air supply device 4 of the first embodiment.
  • a plurality of intake ports are provided on the right side surface of the bottom frame 2401 of the air supply device 24 . More specifically, the bottom frame 2401 has a rectangular bottom portion 2401a and side walls 2401b provided on the outer peripheral edge of the bottom portion 2401a. A plurality of intake ports are provided on the right side of side wall 2401b.
  • an air supply path similar to the air supply path P1 of the first embodiment is formed in the bottom frame 2401. As a result, the air sucked from the outside of the air supply device 24 through the plurality of suction ports reaches the connection port 45 after passing through the air supply path.
  • the outdoor unit 202 also includes a valve cover 2305 attached to the outdoor air conditioner 3 and the air supply device 24 .
  • the valve cover 2305 is an example of a cover.
  • the valve cover 2305 covers the plurality of suction ports 240, the closing valves 36, 37 (shown in FIG. 2), the joint 409, and the socket 410.
  • FIG. 13 is a right side view of the outdoor unit 202.
  • FIG. FIG. 14 is an enlarged view of the handle portion 2305b of the valve cover 2305 and its peripheral portion.
  • the valve cover 2305 is provided with an opening 2305a positioned below the intake port 240 when attached to the outdoor air conditioner 3 and the air supply device 24 .
  • the opening 2305 a of the valve cover 2305 By locating the opening 2305 a of the valve cover 2305 below the intake port 240 , it is possible to prevent dust, water, and the like that have flowed in through the opening 2305 a of the valve cover 2305 from entering the outdoor unit 202 through the intake port 240 .
  • a handle portion 2305b is provided on the upper portion of the valve cover 2305. As shown in FIGS. The handle portion 2305b has a concave shape that serves as a handle when the user carries the outdoor unit 202. As shown in FIG.
  • the handle portion 2305b may have an opening in the hollow portion so as to communicate with the inside of the valve cover 2305.
  • the opening of the handle portion 2305b faces part of the plurality of suction ports 240, for example.
  • the inner peripheral surface of the opening of the handle portion 2305b is a tapered surface that tapers from the outside toward the inside.
  • the upper portion of the inner peripheral surface of the opening of the handle portion 2305b is substantially parallel to the horizontal direction.
  • the lower portion of the inner peripheral surface of the opening of the handle portion 2305b is inclined with respect to the horizontal direction so that the inner edge is higher than the outer edge.
  • the opening of the handle portion 2305b faces part of the plurality of suction ports 240, air can flow smoothly from the opening of the handle portion 2305b to the suction port 240.
  • the lower portion of the inner peripheral surface of the opening of the handle portion 2305b is inclined with respect to the horizontal direction so that the inner edge is higher than the outer edge, for example, rainwater may flow into the opening of the handle portion 2305b. can be prevented from passing through
  • a plurality of suction ports 240 are provided on the right side surface of the bottom frame 2401, but one suction port may be provided.

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

Abstract

An air supply device of this outdoor unit (2) for an air-conditioner has: a first casing (401, 415) having a suction port for suctioning air, a connection port (45) to which an air supply duct is connected, and an air supply passage for guiding air from the suction port to the connection port (45); a fan (42) which is provided in the air supply passage and blows the air suctioned from the suction port into the connection port (45); and a heater (41) which is provided in the air supply passage and heats the air suctioned from the suction port (40). The connection port (45) is disposed on a side surface of the first casing (401, 415). The fan (42) and the heater (41) are controlled by a control unit (300).

Description

空気調和機の室外機outdoor unit of air conditioner
　本開示は、空気調和機の室外機に関する。 The present disclosure relates to outdoor units of air conditioners.
　従来、空気調和機としては、特開２０１４－７０８１４号公報（特許文献１）に開示されているように、室内機および室外機を備えたものがある。 Conventionally, some air conditioners have an indoor unit and an outdoor unit, as disclosed in Japanese Patent Application Laid-Open No. 2014-70814 (Patent Document 1).
　上記室外機は、室外の空気を吸い込んで室内機に向けて吹き出すファンを有している。このファンから吹き出された空気は、室外機を出た後、給気ホースによって室内機へ案内される。 The outdoor unit has a fan that draws in outdoor air and blows it toward the indoor unit. The air blown out from the fan is guided to the indoor unit by an air supply hose after leaving the outdoor unit.
　上記給気ホースの一端は、室外機の側面に設けられた接続口に接続されている。一方、給気ホースの他端は室内機内に配置される。 One end of the air supply hose is connected to a connection port provided on the side of the outdoor unit. On the other hand, the other end of the air supply hose is arranged inside the indoor unit.
特開２０１４－７０８１４号公報JP 2014-70814 A
　上記従来の空気調和機の室外機では、ファンから吹き出された空気は、ダクトを介して、給気ホースへ案内される。このダクトは、水平ダクト部と傾斜ダクト部とを有している。この水平ダクト部は、ファンからの空気を水平方向に流す。一方、上記傾斜ダクト部は、水平ダクト部に流入した空気を斜め下方に流れて室外機の側面の接続口に到達する。 In the outdoor unit of the conventional air conditioner described above, the air blown out from the fan is guided to the air supply hose via the duct. The duct has a horizontal duct section and an inclined duct section. This horizontal duct section allows the air from the fan to flow horizontally. On the other hand, in the inclined duct portion, the air that has flowed into the horizontal duct portion flows obliquely downward and reaches the connection port on the side surface of the outdoor unit.
　このような複雑な構造にダクトを形成しているため、ファンと室外機の側面の接続口との間における空気流の屈曲が多くなって、ファンから室外機の側面の接続口へ空気がスムーズに流れにくくなっている。 Because the duct is formed in such a complicated structure, the airflow between the fan and the connection port on the side of the outdoor unit has many bends, and the air flows smoothly from the fan to the connection port on the side of the outdoor unit. It becomes difficult to flow into
　したがって、上記従来の空気調和機の室外機には、室内機へ送る空気の通風抵抗について改善の余地が残されている。 Therefore, the outdoor unit of the conventional air conditioner described above still has room for improvement in terms of the ventilation resistance of the air sent to the indoor unit.
　本開示の課題は、室内機へ供給する空気の通風抵抗を低減できる空気調和機の室外機を提供することにある。 An object of the present disclosure is to provide an outdoor unit of an air conditioner that can reduce the ventilation resistance of air supplied to the indoor unit.
　本開示の一態様に係る空気調和機の室外機は、
　室内機に冷媒配管を介して接続され、制御部を有する室外空調装置と、
　上記室内機に給気ダクトを介して接続されると共に、上記室外空調装置上に配置された給気装置と
を備え、
　上記給気装置は、
　空気を吸い込む吸込口と、上記給気ダクトが接続される接続口と、上記吸込口から上記接続口まで空気を案内する給気経路とを有する第１ケーシングと、
　上記給気経路に設けられ、上記吸込口から吸い込まれた空気を上記接続口へ吹き出すファンと、
　上記給気経路に設けられ、上記吸込口から吸い込まれた空気を加熱するヒータと
を有し、
　上記接続口は上記第１ケーシングの側面に配置され、
　上記ファンと上記ヒータとは上記制御部によって制御される。 An outdoor unit of an air conditioner according to one aspect of the present disclosure includes:
an outdoor air conditioner connected to an indoor unit via a refrigerant pipe and having a control unit;
An air supply device connected to the indoor unit via an air supply duct and arranged on the outdoor air conditioner,
The air supply device
a first casing having a suction port for sucking air, a connection port to which the air supply duct is connected, and an air supply path for guiding air from the suction port to the connection port;
a fan provided in the air supply path for blowing air sucked from the suction port to the connection port;
a heater provided in the air supply path for heating the air sucked from the suction port;
The connection port is arranged on the side surface of the first casing,
The fan and the heater are controlled by the controller.
　上記構成によれば、上記第１ケーシングの側面に接続口を配置することにより、ファンから接続口に空気をスムーズに流せる。したがって、上記室内機へ供給する空気の通風抵抗を低減することができる。 According to the above configuration, by arranging the connection port on the side surface of the first casing, air can flow smoothly from the fan to the connection port. Therefore, the ventilation resistance of the air supplied to the indoor unit can be reduced.
　本開示の一態様の空気調和機の室外機では、
　上記ファンは上記給気経路における上記ヒータの下流側に配置されている。 In the outdoor unit of an air conditioner according to one aspect of the present disclosure,
The fan is arranged downstream of the heater in the air supply path.
　上記態様によれば、上記給気経路におけるヒータの下流側にファンを配置することにより、ファンでの結露を抑制することができる。 According to the above aspect, by arranging the fan on the downstream side of the heater in the air supply path, condensation on the fan can be suppressed.
　本開示の一態様の空気調和機の室外機では、
　上記吸込口は上記第１ケーシングの側面に設けられている。 In the outdoor unit of an air conditioner according to one aspect of the present disclosure,
The suction port is provided on a side surface of the first casing.
　上記態様によれば、上記第１ケーシングの側面に吸込口を設けることにより、給気経路が複雑に折れ曲がるのを抑制できる。 According to the above aspect, by providing the suction port on the side surface of the first casing, it is possible to prevent the air supply path from being complicatedly bent.
　本開示の一態様の空気調和機の室外機では、
　上記給気装置は、
　上記給気経路の上記ヒータの上流側に、上記給気経路の一部を遮るようにかつ上記給気経路の底部から上方に向かって延びるように設けられた壁部と、
　上記給気経路の上記ヒータの上流側において上記壁部で遮られていない残り部分に設けられた網部材と
を有する。 In the outdoor unit of an air conditioner according to one aspect of the present disclosure,
The air supply device
a wall provided upstream of the heater in the air supply path so as to block part of the air supply path and extend upward from the bottom of the air supply path;
and a net member provided in the remaining portion of the air supply path, which is not blocked by the wall, on the upstream side of the heater.
　上記態様によれば、上記壁部および網部材により、異物などの侵入を抑制することができる。 According to the above aspect, the walls and the mesh member can suppress the intrusion of foreign matter.
　本開示の一態様の空気調和機の室外機は、
　上記室外空調装置および給気装置に取り付けられたカバーを備え、
　上記室外空調装置は、第２ケーシングと、上記第２ケーシングの側面に配置されると共に、上記冷媒配管が接続される閉鎖弁とを有し、
　上記カバーは、上記吸込口および上記閉鎖弁を覆うと共に、上記吸込口の下方に位置する開口を有する。 An outdoor unit of an air conditioner according to one aspect of the present disclosure includes
A cover attached to the outdoor air conditioner and the air supply device,
The outdoor air conditioner has a second casing and a closing valve arranged on a side surface of the second casing and connected to the refrigerant pipe,
The cover covers the suction port and the closing valve, and has an opening positioned below the suction port.
　上記態様によれば、上記カバーの開口が第１ケーシングの吸気口の下方に位置するので、カバーの開口から流入した塵埃や水等が吸気口から第２ケーシング内へ侵入することを抑制できる。 According to the above aspect, since the opening of the cover is located below the intake port of the first casing, it is possible to prevent dust, water, etc., which have flowed in through the opening of the cover, from entering the second casing through the intake port.
本開示の第１実施形態の空気調和機の外観図である。1 is an external view of an air conditioner according to a first embodiment of the present disclosure; FIG. 上記空気調和機の回路図である。It is a circuit diagram of the air conditioner. 上記空気調和機の室外機の制御ブロック図である。Fig. 3 is a control block diagram of the outdoor unit of the air conditioner; 上記空気調和機の室内機の制御ブロック図である。Fig. 3 is a control block diagram of the indoor unit of the air conditioner; 上記室外機の外観斜視図である。It is an external appearance perspective view of the said outdoor unit. 上記室外機の分解斜視図である。Fig. 3 is an exploded perspective view of the outdoor unit; 上記室外機の給気装置の分解斜視図である。Fig. 3 is an exploded perspective view of the air supply device of the outdoor unit; 上記給気装置の上面図である。It is a top view of the said air supply apparatus. 上記給気装置の給気経路を説明する図である。It is a figure explaining the air supply route of the said air supply apparatus. 上記給気装置の給気経路の吸込口近傍の空気の流れを説明する図である。It is a figure explaining the flow of the air of the suction port vicinity of the air supply path|route of the said air supply apparatus. 上記給気装置のフレキシブルホースの傾斜を説明する図である。It is a figure explaining the inclination of the flexible hose of the said air supply apparatus. 本開示の第２実施形態の空気調和機の室外機の外観斜視図である。FIG. 7 is an external perspective view of an outdoor unit of an air conditioner according to a second embodiment of the present disclosure; 上記室外機の右側面図である。It is a right view of the said outdoor unit. 上記室外機のバルブカバーの持ち手部およびその周辺部の拡大図である。Fig. 3 is an enlarged view of a handle portion and its peripheral portion of the valve cover of the outdoor unit;
　以下、実施形態を説明する。なお、図面において、同一の参照番号は、同一部分または相当部分を表わすものである。また、長さ、幅、厚さ、深さ等の図面上の寸法は、図面の明瞭化と簡略化のために実際の尺度から適宜変更されており、実際の相対寸法を表してはいない。 The embodiment will be described below. In the drawings, the same reference numbers denote the same or corresponding parts. Also, dimensions such as length, width, thickness, and depth on the drawings are appropriately changed from actual scales for clarity and simplification of the drawings, and do not represent actual relative dimensions.
　〔第１実施形態〕
　図１は、本開示の第１実施形態の空気調和機の外観図である。 [First Embodiment]
FIG. 1 is an external view of an air conditioner according to the first embodiment of the present disclosure.
　上記空気調和機は、室内機１と室外機２とを備えたペア型の空気調和機である。この室外機２は、室内機１に冷媒配管Ｌ４,Ｌ５を介して接続された室外空調装置３と、室内機１に給気ダクト５を介して接続された給気装置４とを有している。 The above air conditioner is a pair type air conditioner comprising an indoor unit 1 and an outdoor unit 2. The outdoor unit 2 has an outdoor air conditioner 3 connected to the indoor unit 1 via refrigerant pipes L4 and L5, and an air supply device 4 connected to the indoor unit 1 via an air supply duct 5. there is
　図２は、上記空気調和機が備える冷媒回路ＲＣの回路図である。なお、図２では、後述するジョイント４０９、ソケット４１０などの図示を省略している。 FIG. 2 is a circuit diagram of the refrigerant circuit RC provided in the air conditioner. 2, illustration of a joint 409, a socket 410, etc., which will be described later, is omitted.
　＜室内機１の構成＞
　上記空気調和機の室内機１は、例えば、室内の壁面に取り付けられる壁掛け式の室内ユニットである。この室内機１は、室内熱交換器１１と、この室内熱交換器１１に空気を送る室内ファン１２とを備えている。また、室内機１は、室内ファン１２、電磁弁１３などを制御する室内制御部１００を備えている。 <Configuration of indoor unit 1>
The indoor unit 1 of the air conditioner is, for example, a wall-mounted indoor unit attached to an indoor wall surface. The indoor unit 1 includes an indoor heat exchanger 11 and an indoor fan 12 for sending air to the indoor heat exchanger 11. - 特許庁The indoor unit 1 also includes an indoor controller 100 that controls the indoor fan 12, the electromagnetic valve 13, and the like.
　室内熱交換器１１は、室内ファン１２による空気流に関して、室内ファン１２よりも上流側に位置している。この室内熱交換器１１は、室内ファン１２からの空気と冷媒との熱交換を行うために、本体熱交換部１１ａと、補助熱交換部１１ｂと、電磁弁１３とを有する。 The indoor heat exchanger 11 is located upstream of the indoor fan 12 with respect to the air flow by the indoor fan 12 . The indoor heat exchanger 11 has a main body heat exchange portion 11a, an auxiliary heat exchange portion 11b, and an electromagnetic valve 13 to exchange heat between the air from the indoor fan 12 and the refrigerant.
　補助熱交換部１１ｂの一端には、冷媒配管Ｌ４を介して、閉鎖弁３６が接続されている。また、本体熱交換部１１ａの一端には、冷媒配管Ｌ５を介して、閉鎖弁３７が接続されている。補助熱交換部１１ｂの他端は、冷媒配管Ｌ１１と電磁弁１３と冷媒配管Ｌ１２とを介して、本体熱交換部１１ａの他端に接続されている。これにより、室外機２の電動膨張弁３４からの冷媒は、冷媒配管Ｌ４と補助熱交換部１１ｂとを介して、本体熱交換部１１ａに流入可能となっている。 A closing valve 36 is connected to one end of the auxiliary heat exchange section 11b via a refrigerant pipe L4. A closing valve 37 is connected to one end of the main body heat exchange portion 11a via a refrigerant pipe L5. The other end of the auxiliary heat exchange portion 11b is connected to the other end of the main body heat exchange portion 11a via the refrigerant pipe L11, the solenoid valve 13, and the refrigerant pipe L12. As a result, the refrigerant from the electric expansion valve 34 of the outdoor unit 2 can flow into the main body heat exchange section 11a via the refrigerant pipe L4 and the auxiliary heat exchange section 11b.
　室内ファン１２としては、例えば、クロスフローファンが採用される。このクロスフローファンは、室内熱交換器１１で温度などが調整された空気を室内に向けて吹き出す。 A cross-flow fan, for example, is adopted as the indoor fan 12 . This cross-flow fan blows out the air, the temperature of which has been adjusted by the indoor heat exchanger 11, toward the room.
　＜室外空調装置３の構成＞
　上記空気調和機の室外空調装置３は、圧縮機３１と、四路切換弁３２と、室外熱交換器３３と、膨張機構の一例としての電動膨張弁３４と、アキュムレータ３５と、閉鎖弁３６,３７と、室外熱交換器３３に空気を送る室外ファン３０と、室外制御部３００とを備えている。なお、室外制御部３００は、制御部の一例である。 <Configuration of outdoor air conditioner 3>
The outdoor air conditioner 3 of the air conditioner includes a compressor 31, a four-way switching valve 32, an outdoor heat exchanger 33, an electric expansion valve 34 as an example of an expansion mechanism, an accumulator 35, a closing valve 36, 37 , an outdoor fan 30 that sends air to the outdoor heat exchanger 33 , and an outdoor controller 300 . Note that the outdoor control unit 300 is an example of a control unit.
　室外熱交換器３３は、室外ファン３０による空気流に関して、室外ファン３０よりも上流側に位置している。室外熱交換器３３内を流れる冷媒は、室外ファン３０からの空気と熱交換する。 The outdoor heat exchanger 33 is located upstream of the outdoor fan 30 with respect to the air flow by the outdoor fan 30 . The refrigerant flowing inside the outdoor heat exchanger 33 exchanges heat with the air from the outdoor fan 30 .
　＜給気装置４の構成＞
　給気装置４は、ヒータ４１、給気ファン４２、フレキシブルホース４３およびダンパ４４を備えている。この給気装置４は、室外制御部３００のような制御部を備えていない。なお、給気ファン４２は、吸込口４０から吸い込んだ空気を接続口４５から吹き出すファンの一例である。 <Configuration of air supply device 4>
The air supply device 4 includes a heater 41 , an air supply fan 42 , a flexible hose 43 and a damper 44 . This air supply device 4 does not include a controller such as the outdoor controller 300 . The air supply fan 42 is an example of a fan that blows out the air sucked from the suction port 40 from the connection port 45 .
　給気装置４の内部には、給気経路Ｐ１が設けられている。この給気経路Ｐ１は、給気ファン４２の駆動時、吸込口４０から吸い込んだ空気を、ヒータ４１と給気ファン４２とフレキシブルホース４３とダンパ４４とを介して、接続口４５へ案内する。このとき、上記空気は、ヒータ４１で適宜加熱されて、接続口４５および給気ダクト５を介して室内機１に供給される。 An air supply path P1 is provided inside the air supply device 4 . The air supply path P1 guides the air sucked from the suction port 40 to the connection port 45 through the heater 41, the air supply fan 42, the flexible hose 43, and the damper 44 when the air supply fan 42 is driven. At this time, the air is appropriately heated by the heater 41 and supplied to the indoor unit 1 via the connection port 45 and the air supply duct 5 .
　給気ファン４２は給気経路Ｐ１におけるヒータ４１の下流側の直後に配置されている。これにより、給気ファン４２は、ヒータ４１による加熱直後の空気を吸い込めるようになっている。 The air supply fan 42 is arranged immediately downstream of the heater 41 in the air supply path P1. As a result, the air supply fan 42 can suck in the air immediately after being heated by the heater 41 .
　＜冷媒回路ＲＣの構成＞
　上記空気調和機の冷媒回路ＲＣは、室内熱交換器１１、圧縮機３１、四路切換弁３２、室外熱交換器３３、電動膨張弁３４、アキュムレータ３５および冷媒配管Ｌ１～Ｌ７から成っている。より詳しくは、室内熱交換器１１、圧縮機３１、四路切換弁３２、室外熱交換器３３、電動膨張弁３４およびアキュムレータ３５が、冷媒配管Ｌ１～Ｌ７によって流体的に接続される。これにより、環状の冷媒回路ＲＣが構成されている。圧縮機３１の駆動時、冷媒が冷媒回路ＲＣを循環する。 <Configuration of Refrigerant Circuit RC>
The refrigerant circuit RC of the air conditioner consists of an indoor heat exchanger 11, a compressor 31, a four-way switching valve 32, an outdoor heat exchanger 33, an electric expansion valve 34, an accumulator 35 and refrigerant pipes L1 to L7. More specifically, the indoor heat exchanger 11, the compressor 31, the four-way switching valve 32, the outdoor heat exchanger 33, the electric expansion valve 34 and the accumulator 35 are fluidly connected by refrigerant pipes L1 to L7. Thereby, an annular refrigerant circuit RC is configured. When the compressor 31 is driven, refrigerant circulates through the refrigerant circuit RC.
　図３は、室外空調装置３および給気装置４の制御ブロック図である。 FIG. 3 is a control block diagram of the outdoor air conditioner 3 and the air supply device 4.
　室外空調装置３は、室外熱交換器３３の温度を検出する室外熱交換器温度センサＴ１と、外気温度を検出する外気温度センサＴ２と、電動膨張弁３４の蒸発温度を検出する蒸発温度センサＴ３とを備えている。 The outdoor air conditioner 3 includes an outdoor heat exchanger temperature sensor T1 that detects the temperature of the outdoor heat exchanger 33, an outdoor air temperature sensor T2 that detects the outside air temperature, and an evaporating temperature sensor T3 that detects the evaporating temperature of the electric expansion valve 34. and
　室外制御部３００は、室外熱交換器温度センサＴ１、外気温度センサＴ２、蒸発温度センサＴ３などからの信号に基づいて、圧縮機３１、四路切換弁３２、電動膨張弁３４および室外ファン３０を制御する。また、室外制御部３００は、ヒータ４１、給気ファン４２およびダンパ４４も制御する。換言すると、室外制御部３００は、給気ファン４２を駆動するファン駆動部と、ダンパ４４を駆動するダンパ駆動部とを含む。 The outdoor control unit 300 operates the compressor 31, the four-way switching valve 32, the electric expansion valve 34, and the outdoor fan 30 based on signals from the outdoor heat exchanger temperature sensor T1, the outdoor air temperature sensor T2, the evaporation temperature sensor T3, and the like. Control. The outdoor controller 300 also controls the heater 41 , the air supply fan 42 and the damper 44 . In other words, the outdoor control unit 300 includes a fan driving unit that drives the air supply fan 42 and a damper driving unit that drives the damper 44 .
　図４は、室内機１の制御ブロック図である。 4 is a control block diagram of the indoor unit 1. FIG.
　室内機１は、室内熱交換器１１の温度を検出する室内熱交換器温度センサＴ４と、室内機１が設置されている室内の温度を検出する室内温度センサＴ５と、室内機１が設置されている室内の湿度を検出する湿度センサＨとを備えている。 The indoor unit 1 includes an indoor heat exchanger temperature sensor T4 that detects the temperature of the indoor heat exchanger 11, an indoor temperature sensor T5 that detects the temperature in the room where the indoor unit 1 is installed, and the indoor unit 1. and a humidity sensor H for detecting the indoor humidity.
　室内制御部１００および室外制御部３００は、それぞれ、演算などを行うＣＰＵ(Central Processing Unit：中央処理装置）、ＲＯＭ(Read Only Memory：リード・オンリー・メモリー）、ＲＡＭ(Random Access Memory：ランダム・アクセス・メモリー）などが設けられている。この室内制御部１００のＲＯＭおよびＲＡＭは、室内機１の制御に必要なプログラム、データなどを記憶する。また、室外制御部３００のＲＯＭおよびＲＡＭは、室外空調装置３および給気装置４の制御に必要なプログラム、データなどを記憶する。 The indoor control unit 100 and the outdoor control unit 300 each include a CPU (Central Processing Unit) that performs calculations, etc., a ROM (Read Only Memory), a RAM (Random Access Memory).・Memory) etc. are provided. The ROM and RAM of the indoor controller 100 store programs, data, and the like necessary for controlling the indoor unit 1 . Also, the ROM and RAM of the outdoor control unit 300 store programs, data, and the like necessary for controlling the outdoor air conditioner 3 and the air supply device 4 .
　上記空気調和機の空調動作時、室外空調装置３の室外制御部３００と室内機１の室内制御部１００とが、通信線(図示せず）を介して互いに通信を行う。 During the air conditioning operation of the air conditioner, the outdoor controller 300 of the outdoor air conditioner 3 and the indoor controller 100 of the indoor unit 1 communicate with each other via a communication line (not shown).
　また、上記空気調和機は、図示しないが、リモートコントローラ(以下「リモコン」という。）を備えている。このリモコンの操作によって、自動運転、冷房運転、暖房運転、除湿運転、給気運転などを開始させたり、停止させたりするが可能である。ここで、上記給気運転は、室内を換気するために室外の空気を給気ダクト５を介して室内機１に供給する運転を指す。なお、上記給気運転は、自動運転、冷房運転、暖房運転、除湿運転などと同時に行ったり、単独で行ったりしてもよい。 In addition, although not shown, the air conditioner is equipped with a remote controller (hereinafter referred to as "remote controller"). By operating this remote controller, automatic operation, cooling operation, heating operation, dehumidifying operation, air supply operation, etc. can be started or stopped. Here, the air supply operation refers to an operation in which outdoor air is supplied to the indoor unit 1 via the air supply duct 5 in order to ventilate the room. The air supply operation may be performed simultaneously with the automatic operation, the cooling operation, the heating operation, the dehumidifying operation, or the like, or may be performed independently.
　図５は、室外空調装置３と給気装置４とを備えた室外機２の外観斜視図である。 FIG. 5 is an external perspective view of the outdoor unit 2 including the outdoor air conditioner 3 and the air supply device 4. FIG.
　給気装置４は、室外空調装置３上に配置されている。また、給気装置４は、室外空調装置３に例えばネジで固定されている。 The air supply device 4 is arranged on the outdoor air conditioner 3 . Further, the air supply device 4 is fixed to the outdoor air conditioner 3 with screws, for example.
　図６は、室外機２の分解斜視図である。また、図７は、給気装置４の分解斜視図である。図６,図７において、４２０は長方形状の網部材である。 6 is an exploded perspective view of the outdoor unit 2. FIG. 7 is an exploded perspective view of the air supply device 4. FIG. 6 and 7, 420 is a rectangular mesh member.
　室外機２の室外空調装置３は、図６に示すように、底板３０１と、フロントパネル３０２と、円板形状のグリル３０３と、右側板３０４と、バルブカバー３０５と、左側板３０６とを備えている。なお、フロントパネル３０２、右側板３０４および左側板３０６が、第２ケーシングの一例を構成している。 The outdoor air conditioner 3 of the outdoor unit 2 includes, as shown in FIG. ing. The front panel 302, right side plate 304 and left side plate 306 constitute an example of a second casing.
　底板３０１には、平面視においてＬ字形状を呈する室外熱交換器３３が取り付けられている。この底板３０１の右端には右側板３０４が取り付けられている。閉鎖弁３６,３７(図２に示す）は、右側板３０４に対して外部側に位置して、バルブカバー３０５で覆われる。一方、底板３０１の左端には左側板３０６が取り付けられている。 An outdoor heat exchanger 33 having an L-shape in plan view is attached to the bottom plate 301 . A right side plate 304 is attached to the right end of the bottom plate 301 . Close valves 36 , 37 (shown in FIG. 2 ) are positioned externally to right side plate 304 and covered by valve cover 305 . On the other hand, a left side plate 306 is attached to the left end of the bottom plate 301 .
　また、底板３０１には、底板３０１の右側板３０４と室外熱交換器３３との間に位置する仕切板３０７も取り付けられている。この仕切板３０７と右側板３０４との間の空間が機械室となる。この機械室には、圧縮機３１（図２に示す）、室外制御部３００などが配置される。また、上記機械室上の遮蔽板３０８は、右側板３０４の上端に取り付けられて、室外制御部３００を覆う。 A partition plate 307 positioned between the right side plate 304 of the bottom plate 301 and the outdoor heat exchanger 33 is also attached to the bottom plate 301 . A space between the partition plate 307 and the right side plate 304 serves as a machine room. A compressor 31 (shown in FIG. 2), an outdoor controller 300, and the like are arranged in this machine room. In addition, the shielding plate 308 on the machine room is attached to the upper end of the right side plate 304 to cover the outdoor control section 300 .
　フロントパネル３０２は、底板３０１、右側板３０４および左側板３０６のそれぞれの前縁に取り付けられている。このフロントパネル３０２の中央には丸穴３０２ａが設けられている。 The front panel 302 is attached to the front edge of each of the bottom plate 301 , the right side plate 304 and the left side plate 306 . A circular hole 302a is provided in the center of the front panel 302 .
　グリル３０３は、丸穴３０２ａを塞ぐように、丸穴３０２ａの周縁部に取り付けられて、室外ファン３０と対向する。 The grille 303 is attached to the periphery of the circular hole 302a so as to block the circular hole 302a, and faces the outdoor fan 30.
　室外機２の給気装置４は、図６,図７に示すように、上部が開口された底フレーム４０１と、この底フレーム４０１の開口を塞ぐ上面パネル４１５とを備えている。なお、底フレーム４０１および上面パネル４１５が、第１ケーシングの一例を構成している。 As shown in FIGS. 6 and 7, the air supply device 4 of the outdoor unit 2 includes a bottom frame 401 with an open top and a top panel 415 that closes the opening of the bottom frame 401 . Note that the bottom frame 401 and the top panel 415 constitute an example of the first casing.
　底フレーム４０１の右側面には、接続口４５が設けられている。より詳しくは、底フレーム４０１は、長方形状の底部４０１ａと、この底部４０１ａの外周縁部に設けられた側壁４０１ｂとを有する。接続口４５は側壁４０１ｂの右側部に設けられている。 A connection port 45 is provided on the right side of the bottom frame 401 . More specifically, the bottom frame 401 has a rectangular bottom portion 401a and side walls 401b provided on the outer peripheral edge of the bottom portion 401a. The connection port 45 is provided on the right side of the side wall 401b.
　底部４０１ａの左部分（底部４０１ａの長手方向の中央に対して接続口４５とは反対側の部分）には、ベルマウス４０２が取り付けられている。このベルマウス４０２を覆うように、ファンハウジング４０３がベルマウス４０２に取り付けられている。また、底部４０１ａにおいてベルマウス４０２の下方に位置する部分には、凹部４０１ｄの一部が設けられている。この凹部４０１ｄの他の部分は、ヒータ４１の下方に位置する。このような凹部４０１ｄにより、ヒータ４１を経由した空気は給気ファン４２に案内される。 A bell mouth 402 is attached to the left portion of the bottom portion 401a (the portion opposite to the connection port 45 with respect to the center of the bottom portion 401a in the longitudinal direction). A fan housing 403 is attached to the bell mouth 402 so as to cover the bell mouth 402 . A portion of the recess 401d is provided in a portion of the bottom portion 401a located below the bell mouth 402. As shown in FIG. Other portions of the recess 401 d are located below the heater 41 . The air that has passed through the heater 41 is guided to the air supply fan 42 by the recess 401d.
　給気ファン４２は、ベルマウス４０２とファンハウジング４０３との間の空間に配置される。この給気ファン４２を回転駆動するファンモータ４０４は、ファンハウジング４０３の上面に取り付けられている。 The air supply fan 42 is arranged in the space between the bell mouth 402 and the fan housing 403 . A fan motor 404 for rotating the air supply fan 42 is attached to the upper surface of the fan housing 403 .
　また、底部４０１ａの長手方向の中央部における後部には、ヒータ４１が取り付けられている。このヒータ４１よりも右側（接続口４５側）では、案内壁４０１ｃが底部４０１ａから上方に延びている。また、ヒータ４１は、絶縁シート４１４により覆われている。 A heater 41 is attached to the rear portion of the bottom portion 401a in the center in the longitudinal direction. On the right side of the heater 41 (connection port 45 side), a guide wall 401c extends upward from the bottom portion 401a. Also, the heater 41 is covered with an insulating sheet 414 .
　ファンハウジング４０３の右側の部分には吹出口４０３ａが設けられている。この吹出口４０３ａにはフレキシブルホース４３の一端が接続されている。 A blowout port 403a is provided on the right side of the fan housing 403. One end of a flexible hose 43 is connected to the outlet 403a.
　また、底部４０１ａの右部分（底部４０１ａの長手方向の中央に対して接続口４５側の部分）上には、ダンパ４４が配置されている。このダンパ４４は、空気の流入口となる入口を上面に有すると共に、空気の流出口となる出口を下面に有する。このダンパ４４の入口には、ジョイント４０６を介してフレキシブルホース４３の他端が接続される。また、ダンパ４４の出口には、ジョイント４０７を介して連結部４０８の一端が接続される。 A damper 44 is arranged on the right portion of the bottom portion 401a (the portion on the connection port 45 side with respect to the center of the bottom portion 401a in the longitudinal direction). The damper 44 has an inlet on its upper surface that serves as an air inlet, and an outlet that serves as an air outlet on its lower surface. The inlet of this damper 44 is connected to the other end of the flexible hose 43 via a joint 406 . One end of a connecting portion 408 is connected to the outlet of the damper 44 via a joint 407 .
　連結部４０８は、底フレーム４０１に固定される。このとき、連結部４０８は、側壁４０１ｂに設けられた接続口４５に挿し通され、他端が側壁４０１ｂの外側に位置する。この連結部４０８の他端は、ジョイント４０９を介してソケット４１０に接続される。ソケット４１０には給気ダクト５(図１,図２に示す)の一端が接続される。また、ジョイント４０９およびソケット４１０は、カバー４１２により覆われている。カバー４１２は、側壁４０１ｂに固定される。 The connecting part 408 is fixed to the bottom frame 401 . At this time, the connecting portion 408 is inserted through the connection port 45 provided in the side wall 401b, and the other end is positioned outside the side wall 401b. The other end of this connecting portion 408 is connected to socket 410 via joint 409 . One end of the air supply duct 5 (shown in FIGS. 1 and 2) is connected to the socket 410 . Joint 409 and socket 410 are covered with cover 412 . Cover 412 is fixed to side wall 401b.
　また、底部４０１ａの下面には、ヒータ４１の下方に位置するように遮蔽板４１３が取り付けられている。 A shielding plate 413 is attached to the lower surface of the bottom portion 401 a so as to be positioned below the heater 41 .
　上面パネル４１５は、底部４０１ａ上に配置された部品を覆うように、側壁４０１ｂの上部に取り付けられる。 The top panel 415 is attached to the upper part of the side wall 401b so as to cover the parts arranged on the bottom part 401a.
　＜給気装置４の給気経路Ｐ１＞
　図８は、上面パネル４１５を取り外した状態の給気装置４の上面図であり、図９は、給気装置４の給気経路Ｐ１を説明する図である。 <Air supply path P1 of air supply device 4>
FIG. 8 is a top view of the air supply device 4 with the upper panel 415 removed, and FIG.
　図８に示すように、ヒータ４１、給気ファン４２およびダンパ４４は、平面視において重なり合わないように、底フレーム４０１の底部４０１ａ上に配置されている。言い方を換えると、ヒータ４１、給気ファン４２およびダンパ４４のうちの一つは、残りの何れにも積み重ねられていない。 As shown in FIG. 8, the heater 41, the air supply fan 42 and the damper 44 are arranged on the bottom portion 401a of the bottom frame 401 so as not to overlap each other in plan view. In other words, one of heater 41, supply fan 42 and damper 44 is not stacked with any of the others.
　図９に示すように、給気装置４の外部から吸込口４０を介して吸い込まれた空気は、ヒータ４１、ベルマウス４０２、ファンハウジング４０３、フレキシブルホース４３、ダンパ４４および底フレーム４０１とで形成された給気経路Ｐ１(図９の矢印で示す経路）を通った後、接続口４５から吹き出す。 As shown in FIG. 9, the air sucked from the outside of the air supply device 4 through the suction port 40 is formed by the heater 41, the bell mouth 402, the fan housing 403, the flexible hose 43, the damper 44 and the bottom frame 401. After passing through the supplied air supply path P1 (the path indicated by the arrow in FIG. 9), the air is blown out from the connection port 45 .
　図８,図９に示すように、給気ファン４２は、ヒータ４１の左側に配置されている。また、フレキシブルホース４３の上流側の端部は、ヒータ４１の前側に配置されている。なお、フレキシブルホース４３は、給気経路Ｐ１の一部をなす経路部材の一例である。 As shown in FIGS. 8 and 9, the air supply fan 42 is arranged on the left side of the heater 41 . The upstream end of the flexible hose 43 is arranged in front of the heater 41 . In addition, the flexible hose 43 is an example of a path member forming a part of the air supply path P1.
　底フレーム４０１の側壁４０１ｂの後面に吸込口４０が設けられている(図１０参照）。吸込口４０は、側壁４０１ｂに設けられた複数のスリットで構成されている。また、吸込口４０には壁部４３０が対向している。この壁部４３０は、吸込口４０に対して間隔をあけて底フレーム４０１の底部４０１ａに設けられ、底部４０１ａから上方に延びている。換言すると、給気経路Ｐ１のヒータ４１の上流側に、給気経路Ｐ１の一部を遮るようにかつ給気経路Ｐ１の底部から上方に向かって延びるように壁部４３０が設けられている。また、給気経路Ｐ１の壁部４３０で遮られていない残り部分に設けられた網部材４２０が設けられている。 A suction port 40 is provided on the rear surface of the side wall 401b of the bottom frame 401 (see FIG. 10). The suction port 40 is composed of a plurality of slits provided in the side wall 401b. A wall portion 430 faces the suction port 40 . The wall portion 430 is provided on the bottom portion 401a of the bottom frame 401 with a gap from the suction port 40 and extends upward from the bottom portion 401a. In other words, the wall portion 430 is provided on the upstream side of the heater 41 in the air supply path P1 so as to block part of the air supply path P1 and extend upward from the bottom of the air supply path P1. Moreover, a net member 420 is provided in the remaining portion of the air supply path P1 that is not blocked by the wall portion 430 .
　網部材４２０は、例えば、線径０．５５ｍｍのステンレス鋼線製の１６メッシュ(１．１ｍｍ×１．１ｍｍ)の平織金網である(ＪＩＳ規格Ｇ３５５５)。このような平織金網は、ヒータ４１への埃の堆積を抑制でき、信頼性の向上が可能である。 The mesh member 420 is, for example, a 16-mesh (1.1 mm×1.1 mm) plain-woven wire mesh made of stainless steel wire with a wire diameter of 0.55 mm (JIS standard G3555). Such a plain-woven wire mesh can suppress deposition of dust on the heater 41, and can improve reliability.
　図１０は、給気装置４の給気経路Ｐ１の吸込口４０近傍の空気の流れを説明する図である。図１０は図８のＸ－Ｘ線から見た断面である。 FIG. 10 is a diagram for explaining the flow of air near the suction port 40 of the air supply path P1 of the air supply device 4. As shown in FIG. FIG. 10 is a cross section seen from line XX of FIG.
　図１０の矢印に示すように、給気ファン４２により吸込口４０から吸い込まれた空気は、壁部４３０に衝突した後、上方の網部材４２０を通って壁部４３０を乗り越えて、ヒータ４１の下方に進む。 As shown by arrows in FIG. 10 , the air sucked from the suction port 40 by the air supply fan 42 collides with the wall 430 , passes through the upper mesh member 420 , climbs over the wall 430 , and reaches the heater 41 . go downwards.
　図１１は、給気装置４のフレキシブルホース４３の傾斜を説明する図である。図１１に示すように、ベルマウス４０２とファンハウジング４０３の吹出口４０３ａに接続されたフレキシブルホース４３の一端は、フレキシブルホース４３の他端(ダンパ４４側)よりも低い位置に配置されている。 11A and 11B are diagrams for explaining the inclination of the flexible hose 43 of the air supply device 4. FIG. As shown in FIG. 11, one end of the flexible hose 43 connected to the bell mouth 402 and the outlet 403a of the fan housing 403 is positioned lower than the other end of the flexible hose 43 (on the side of the damper 44).
　室外制御部３００（図２，図３，図６に示す）は給気運転の制御を行う。より詳しくは、給気運転の停止中は、ヒータ４１をオフ(非通電)とし、給気ファン４２を停止すると共に、ダンパ４４を閉状態にしている。そして、例えば、室内のリモコン操作により給気運転が選択されると、室内制御部１００は、室外制御部３００に給気運転の指令信号を送信する。室外制御部３００は、室内制御部１００からの指令信号に応じて、ダンパ４４を開状態にして給気ファン４２を駆動させる。これにより、室外空気は吸込口４０から給気経路Ｐ１に吸い込まれて、接続口４５と給気ダクト５を介して室内機１に供給される。 The outdoor control unit 300 (shown in FIGS. 2, 3, and 6) controls the air supply operation. More specifically, while the air supply operation is stopped, the heater 41 is turned off (de-energized), the air supply fan 42 is stopped, and the damper 44 is closed. Then, for example, when the air supply operation is selected by indoor remote control operation, the indoor control unit 100 transmits a command signal for the air supply operation to the outdoor control unit 300 . The outdoor controller 300 opens the damper 44 and drives the air supply fan 42 in response to a command signal from the indoor controller 100 . As a result, outdoor air is sucked into the air supply path P<b>1 from the suction port 40 and supplied to the indoor unit 1 via the connection port 45 and the air supply duct 5 .
　なお、ヒータ４１は、給気運転時において特定の条件を満たすときにオン(通電）することで、乾燥空気を給気ダクト５を介して室内機１に供給できる。ここで、特定の条件としては、給気ダクト５内に結露が生じるような条件(外気温度など）である。この第１実施形態では、室外制御部３００によって、ヒータ４１の電力を所定の条件に基づいて１２０Ｗ～３５０Ｗの範囲で調整する。 It should be noted that the heater 41 can supply dry air to the indoor unit 1 via the air supply duct 5 by turning on (energizing) the heater 41 when a specific condition is satisfied during the air supply operation. Here, the specific condition is a condition (outside air temperature, etc.) that causes dew condensation in the air supply duct 5 . In the first embodiment, the outdoor controller 300 adjusts the electric power of the heater 41 within a range of 120 W to 350 W based on predetermined conditions.
　上記構成の空気調和機の室外機２によれば、接続口４５が底フレーム４０１の右側面に設けられていることによって、給気ファン４２と接続口４５との間における空気流の屈曲が少なくなるので、給気ファン４２によって吹き出された空気を接続口４５にスムーズに流すことができる。したがって、室内機１へ供給する空気の通風抵抗を低減することができる。 According to the outdoor unit 2 of the air conditioner configured as described above, since the connection port 45 is provided on the right side surface of the bottom frame 401, the bending of the air flow between the supply fan 42 and the connection port 45 is reduced. Therefore, the air blown out by the air supply fan 42 can smoothly flow to the connection port 45 . Therefore, the ventilation resistance of the air supplied to the indoor unit 1 can be reduced.
　給気装置４は室外制御部３００のような制御部を備えていないので、給気装置４内の空きスペースを広げることができる。その結果、ヒータ４１、給気ファン４２などの部品の配置の自由度を高めることができる。 Since the air supply device 4 does not have a control unit like the outdoor control unit 300, the empty space inside the air supply device 4 can be increased. As a result, the degree of freedom in arranging parts such as the heater 41 and the air supply fan 42 can be increased.
　また、ヒータ４１の下流側の直後に給気ファン４２を配置することにより、給気ファン４２が吸い込む空気の湿度をヒータ４１で下げることができる。したがって、給気ファン４２で結露が生じるのを抑制することができる。 Also, by arranging the air supply fan 42 immediately downstream of the heater 41 , the humidity of the air sucked by the air supply fan 42 can be lowered by the heater 41 . Therefore, it is possible to suppress the occurrence of dew condensation on the air supply fan 42 .
　また、吸込口４０が底フレーム４０１の後側面に設けられているので、給気経路Ｐ１が複雑に折れ曲がるのを抑制することができる。 In addition, since the suction port 40 is provided on the rear side surface of the bottom frame 401, complicated bending of the air supply path P1 can be suppressed.
　また、給気経路Ｐ１のヒータ４１の上流側において、吸込口４０から吸い込まれた空気が壁部４３０に衝突した後、網部材４２０を通ってヒータ４１側に流れるので、壁部４３０で外部からの水滴の侵入を抑えることができると共に、網部材４２０で異物を捕捉することができる。 Further, on the upstream side of the heater 41 in the air supply path P1, the air sucked from the suction port 40 collides with the wall portion 430 and then flows through the net member 420 toward the heater 41 side. In addition, the mesh member 420 can trap foreign matter.
　また、ヒータ４１、給気ファン４２およびダンパ４４を、平面視において重なり合わないように配置するので、ヒータ４１、給気ファン４２およびダンパ４４などの機能部品を省スペースで配置しつつケーシング(４０１,４１５)の高さを低く抑えることができる。 In addition, since the heater 41, the air supply fan 42 and the damper 44 are arranged so as not to overlap each other in a plan view, the functional parts such as the heater 41, the air supply fan 42 and the damper 44 can be arranged in a space-saving manner while the casing (401) , 415) can be kept low.
　また、給気経路Ｐ１の一部をなす経路部材がフレキシブルホース４３であるので、弾性変形するフレキシブルホース４３により給気ファン４２からの振動が減衰され、騒音を低減できる。また、フレキシブルホース４３を用いることで、レイアウトについて設計の自由度が高くなる。 In addition, since the flexible hose 43 is a route member forming part of the air supply route P1, the elastically deformable flexible hose 43 attenuates vibrations from the air supply fan 42, thereby reducing noise. In addition, the use of the flexible hose 43 increases the degree of freedom in designing the layout.
　また、ヒータ４１の加熱によって湿度を下げて空気をフレキシブルホース４３および給気ダクト５に流せるので、フレキシブルホース４３内および給気ダクト５内における結露の発生を抑制することができる。 In addition, since the humidity is lowered by heating the heater 41 and the air can flow through the flexible hose 43 and the air supply duct 5, dew condensation in the flexible hose 43 and the air supply duct 5 can be suppressed.
　また、フレキシブルホース４３内の上流側の端部は、ヒータ４１側に近くて下流よりも温度が高くなるので、フレキシブルホース４３の上流側の端部がフレキシブルホース４３の下流側の端部よりも低い位置にして傾斜を設けることにより、フレキシブルホース４３内の結露水が集まる上流側の端部で乾燥させることができる。 Also, since the upstream end of the flexible hose 43 is closer to the heater 41 and has a higher temperature than the downstream end, the upstream end of the flexible hose 43 is warmer than the downstream end of the flexible hose 43 . By providing a low position and a slope, drying can be performed at the upstream end where the condensed water in the flexible hose 43 collects.
　また、給気装置４と室内機１とを接続する給気ダクト５内における結露の発生の抑制により、給気ダクト５に溜まった結露水が原因で異音や異臭が発生するのを抑制することができる。 In addition, by suppressing the occurrence of dew condensation in the air supply duct 5 connecting the air supply device 4 and the indoor unit 1, the occurrence of abnormal sounds and odors caused by the condensed water accumulated in the air supply duct 5 is suppressed. be able to.
　上記第１実施形態では、ヒータ４１は給気ファン４２の上流側に配置されていたが、給気ファン４２の下流側に配置されるようにしてもよい。 Although the heater 41 is arranged upstream of the air supply fan 42 in the first embodiment, it may be arranged downstream of the air supply fan 42 .
　上記第１実施形態では、接続口４５は、底フレーム４０１の右側面に設けられていたが、底フレーム４０１の前側面、後側面または左側面に設けられてもよい。 Although the connection port 45 is provided on the right side surface of the bottom frame 401 in the first embodiment, it may be provided on the front side surface, the rear side surface, or the left side surface of the bottom frame 401 .
　上記第１実施形形態では、ヒータ４１に対して給気ファン４２が左側に配置されていたが、ヒータ４１に対して給気ファン４２が右側に配置されるようにしてもよい。換言すると、ヒータ４１および給気ファン４２の配置は、給気ファン４２よりもヒータ４１の方が接続口４５に近くなるようにしていたが、ヒータ４１よりも給気ファン４２の方が接続口４５に近くなるようにしてもよい。 Although the air supply fan 42 is arranged on the left side of the heater 41 in the first embodiment, the air supply fan 42 may be arranged on the right side of the heater 41 . In other words, the heater 41 and the air supply fan 42 were arranged so that the heater 41 was closer to the connection port 45 than the air supply fan 42, but the air supply fan 42 was closer to the connection port than the heater 41. It may be closer to 45.
　上記第１実施形態では、吸込口４０は、底フレーム４０１の後側面に設けられていたが、底フレーム４０１の前面、後面または左側面に設けられてもよい。 Although the suction port 40 is provided on the rear side surface of the bottom frame 401 in the first embodiment, it may be provided on the front surface, rear surface, or left side surface of the bottom frame 401 .
　上記第１実施形態では、給気経路Ｐ１の一部をなす経路部材にフレキシブルホース４３を用いたが、経路部材はこれに限らず、樹脂成形されたダクトなどであってもよい。 In the above-described first embodiment, the flexible hose 43 is used as the route member forming part of the air supply route P1, but the route member is not limited to this, and may be a resin-molded duct or the like.
　〔第２実施形態〕
　図１２は、本開示の第２実施形態の空気調和機の室外機２０２の外観斜視図である。 [Second embodiment]
FIG. 12 is an external perspective view of an outdoor unit 202 of an air conditioner according to the second embodiment of the present disclosure.
　上記空気調和機において、室外機２０２以外の構成は上記第１実施形態の構成と同様になっている。 In the above air conditioner, the configuration other than the outdoor unit 202 is the same as the configuration of the above first embodiment.
　室外機２０２は、上記第１実施形態の給気装置４とは異なる給気装置２４を備えている。この給気装置２４の底フレーム２４０１の右側面には、複数の吸気口が設けられている。より詳しくは、底フレーム２４０１は、長方形状の底部２４０１ａと、この底部２４０１ａの外周縁部に設けられた側壁２４０１ｂとを有する。複数の吸気口は側壁２４０１ｂの右側部に設けられている。 The outdoor unit 202 includes an air supply device 24 that is different from the air supply device 4 of the first embodiment. A plurality of intake ports are provided on the right side surface of the bottom frame 2401 of the air supply device 24 . More specifically, the bottom frame 2401 has a rectangular bottom portion 2401a and side walls 2401b provided on the outer peripheral edge of the bottom portion 2401a. A plurality of intake ports are provided on the right side of side wall 2401b.
　また、図示しないが、上記第１実施形態の給気経路Ｐ１と同様の給気経路が、底フレーム２４０１内に形成されている。これにより、給気装置２４の外部から複数の吸込口を介して吸い込まれた空気は、上記給気経路を通った後、接続口４５に到達するようになっている。 Although not shown, an air supply path similar to the air supply path P1 of the first embodiment is formed in the bottom frame 2401. As a result, the air sucked from the outside of the air supply device 24 through the plurality of suction ports reaches the connection port 45 after passing through the air supply path.
　また、室外機２０２は、室外空調装置３および給気装置２４に取り付けられたバルブカバー２３０５を備えている。なお、バルブカバー２３０５は、カバーの一例である。 The outdoor unit 202 also includes a valve cover 2305 attached to the outdoor air conditioner 3 and the air supply device 24 . Note that the valve cover 2305 is an example of a cover.
　バルブカバー２３０５は、複数の吸込口２４０と、閉鎖弁３６，３７（図２示す）と、ジョイント４０９と、ソケット４１０とを覆う。 The valve cover 2305 covers the plurality of suction ports 240, the closing valves 36, 37 (shown in FIG. 2), the joint 409, and the socket 410.
　図１３は、室外機２０２の右側面図である。また、図１４は、バルブカバー２３０５の持ち手部２３０５ｂおよびその周辺部の拡大図である。 13 is a right side view of the outdoor unit 202. FIG. FIG. 14 is an enlarged view of the handle portion 2305b of the valve cover 2305 and its peripheral portion.
　図１３に示すように、バルブカバー２３０５には、室外空調装置３および給気装置２４に取り付けられた状態において、吸気口２４０の下方に位置する開口部２３０５ａが設けられている。バルブカバー２３０５の開口２３０５ａが吸気口２４０の下方に位置することで、バルブカバー２３０５の開口２３０５ａから流入した塵埃や水等が吸気口２４０から室外機２０２の内部へ侵入することを抑制できる。 As shown in FIG. 13, the valve cover 2305 is provided with an opening 2305a positioned below the intake port 240 when attached to the outdoor air conditioner 3 and the air supply device 24 . By locating the opening 2305 a of the valve cover 2305 below the intake port 240 , it is possible to prevent dust, water, and the like that have flowed in through the opening 2305 a of the valve cover 2305 from entering the outdoor unit 202 through the intake port 240 .
　また、図１３，図１４に示すように、バルブカバー２３０５の上部には持ち手部２３０５ｂが設けられている。持ち手部２３０５ｂは、ユーザが室外機２０２を持ち運ぶ際の取っ手となる窪み形状を有する。 Also, as shown in FIGS. 13 and 14, a handle portion 2305b is provided on the upper portion of the valve cover 2305. As shown in FIGS. The handle portion 2305b has a concave shape that serves as a handle when the user carries the outdoor unit 202. As shown in FIG.
　さらに、持ち手部２３０５ｂには、バルブカバー２３０５の内側と連通するように窪み部分に開口が設けられていてもよい。この場合、持ち手部２３０５ｂの開口は、例えば、複数の吸込口２４０の一部と対向する。より詳しくは、持ち手部２３０５ｂの開口の内周面は、外側から内側に向かって先細りのテーパ面となっている。また、持ち手部２３０５ｂの開口の内周面の上部は、水平方向に略平行になっている。一方、持ち手部２３０５ｂの開口の内周面の下部は、内側の端が外側の端よりも高くなるように、水平方向に対して傾斜している。 Further, the handle portion 2305b may have an opening in the hollow portion so as to communicate with the inside of the valve cover 2305. In this case, the opening of the handle portion 2305b faces part of the plurality of suction ports 240, for example. More specifically, the inner peripheral surface of the opening of the handle portion 2305b is a tapered surface that tapers from the outside toward the inside. Also, the upper portion of the inner peripheral surface of the opening of the handle portion 2305b is substantially parallel to the horizontal direction. On the other hand, the lower portion of the inner peripheral surface of the opening of the handle portion 2305b is inclined with respect to the horizontal direction so that the inner edge is higher than the outer edge.
　上記構成の空気調和機の室外機２０２によれば、持ち手部２３０５ｂの開口が複数の吸込口２４０の一部と対向するので、持ち手部２３０５ｂの開口から吸込口２４０へ空気をスムーズに流せる。また、持ち手部２３０５ｂの開口の内周面の下部は、内側の端が外側の端よりも高くなるように、水平方向に対して傾斜しているので、例えば雨水が持ち手部２３０５ｂの開口を通過するのを抑制することができる。 According to the outdoor unit 202 of the air conditioner configured as described above, since the opening of the handle portion 2305b faces part of the plurality of suction ports 240, air can flow smoothly from the opening of the handle portion 2305b to the suction port 240. . In addition, since the lower portion of the inner peripheral surface of the opening of the handle portion 2305b is inclined with respect to the horizontal direction so that the inner edge is higher than the outer edge, for example, rainwater may flow into the opening of the handle portion 2305b. can be prevented from passing through
　上記第２実施形態では、底フレーム２４０１の右側面に、複数の吸込口２４０を設けていたが、１つの吸気口を設けるようにしてもよい。 In the second embodiment, a plurality of suction ports 240 are provided on the right side surface of the bottom frame 2401, but one suction port may be provided.
　本開示の具体的な実施の形態について説明したが、本開示は上記実施形態およびその変形例に限定されるものではなく、本開示の範囲内で種々変更して実施することができる。例えば、上記実施形態で記載した内容の一部を削除または置換したものを、本開示の一実施形態としてもよい。 Although specific embodiments of the present disclosure have been described, the present disclosure is not limited to the above embodiments and modifications thereof, and can be implemented with various modifications within the scope of the present disclosure. For example, one embodiment of the present disclosure may be obtained by deleting or replacing part of the content described in the above embodiment.
　１　室内機
　２，２０２　室外機
　３　室外空調装置
　４　給気装置
　５　給気ダクト
　１１　室内熱交換器
　１１ａ　本体熱交換部
　１１ｂ　補助熱交換部
　１２　室内ファン
　１３　電磁弁
　３０　室外ファン
　３１　圧縮機
　３２　四路切換弁
　３３　室外熱交換器
　３４　電動膨張弁
　３５　アキュムレータ
　３６,３７　閉鎖弁
　４０，２４０　吸込口
　４１　ヒータ
　４２　給気ファン(ファン)
　４３　フレキシブルホース(経路部材）
　４４　ダンパ
　４５　接続口
　１００　室内制御部
　３００　室外制御部
　３０１　底板
　３０２　フロントパネル
　３０３　グリル
　３０４　右側板
　３０５，２３０５　バルブカバー
　３０６　左側板
　３０７　仕切板
　３０８　遮蔽板
　４０１，２４０１　底フレーム
　４０１ａ，２４０１ａ　底部
　４０１ｂ，２４０１ｂ　側壁
　４０１ｃ　案内壁
　４０１ｄ　凹部
　４０２　ベルマウス
　４０３　ファンハウジング
　４０３ａ　吹出口
　４０４　ファンモータ
　４０５　絶縁シート
　４０６　ジョイント
　４０７　ジョイント
　４０８　連結部
　４０９　ジョイント
　４１０，４３０　ソケット
　４１２　カバー
　４１３　遮蔽板
　４１５　上面パネル
　４２０　網部材
　４３０　壁部
　２３０５ａ　開口部
　２３０５ｂ　持ち手部
　Ｐ１　給気経路
　ＲＣ　冷媒回路 1 indoor unit 2,202 outdoor unit 3 outdoor air conditioner 4 air supply device 5 air supply duct 11 indoor heat exchanger 11a body heat exchange unit 11b auxiliary heat exchange unit 12 indoor fan 13 solenoid valve 30 outdoor fan 31 compressor 32 four-way Switching valve 33 Outdoor heat exchanger 34 Electric expansion valve 35 Accumulator 36, 37 Shut-off valve 40, 240 Suction port 41 Heater 42 Air supply fan (fan)
43 flexible hose (route member)
44 damper 45 connection port 100 indoor controller 300 outdoor controller 301 bottom plate 302 front panel 303 grille 304 right side plate 305, 2305 valve cover 306 left side plate 307 partition plate 308 shield plate 401, 2401 bottom frame 401a, 2401a bottom portion 401b, 2 401b side wall 401c guide wall 401d recessed portion 402 bell mouth 403 fan housing 403a outlet 404 fan motor 405 insulating sheet 406 joint 407 joint 408 connecting portion 409 joint 410, 430 socket 412 cover 413 shielding plate 415 top panel 420 net member 430 wall portion 2 305a opening 2305b Handle P1 Air supply path RC Refrigerant circuit

Claims (5)

  1. 　室内機（１）に冷媒配管を介して接続され、制御部（３００）を有する室外空調装置（３）と、
    　上記室内機（１）に給気ダクト（５）を介して接続されると共に、上記室外空調装置（３）上に配置された給気装置（４，２４）と
    を備え、
    　上記給気装置（４，２４）は、
    　空気を吸い込む吸込口（４０，２４０）と、上記給気ダクト（５）が接続される接続口（４５）と、上記吸込口（４０，２４０）から上記接続口（４５）まで空気を案内する給気経路（Ｐ１）とを有する第１ケーシング（４０１，４１５）と、
    　上記給気経路（Ｐ１）に設けられ、上記吸込口（４０，２４０）から吸い込まれた空気を上記接続口（４５）へ吹き出すファン（４２）と、
    　上記給気経路（Ｐ１）に設けられ、上記吸込口（４０，２４０）から吸い込まれた空気を加熱するヒータ（４１）と
    を有し、
    　上記接続口（４５）は上記第１ケーシング（４０１，４１５）の側面に配置され、
    　上記ファン（４２）と上記ヒータ（４１）とは上記制御部（３００）によって制御される、空気調和機の室外機（２，２０２）。     an outdoor air conditioner (3) connected to the indoor unit (1) via a refrigerant pipe and having a controller (300);
    An air supply device (4, 24) connected to the indoor unit (1) through an air supply duct (5) and arranged on the outdoor air conditioner (3),
    The air supply device (4, 24) is
    A suction port (40, 240) for sucking air, a connection port (45) to which the air supply duct (5) is connected, and guiding air from the suction port (40, 240) to the connection port (45). a first casing (401, 415) having an air supply path (P1);
    a fan (42) provided in the air supply path (P1) for blowing air sucked from the suction port (40, 240) to the connection port (45);
    a heater (41) provided in the air supply path (P1) for heating the air sucked from the suction port (40, 240);
    The connection port (45) is arranged on the side surface of the first casing (401, 415),
    An outdoor unit (2, 202) of an air conditioner, wherein the fan (42) and the heater (41) are controlled by the controller (300).
  2. 　請求項１に記載の空気調和機の室外機（２，２０２）において、
    　上記ファン（４２）は上記給気経路（Ｐ）における上記ヒータ（４１）の下流側に配置されている、空気調和機の室外機（２，２０２）。     In the air conditioner outdoor unit (2, 202) according to claim 1,
    An outdoor unit (2, 202) of an air conditioner, wherein the fan (42) is arranged downstream of the heater (41) in the air supply path (P).
  3. 　請求項１または２に記載の空気調和機の室外機（２，２０２）において、
    　上記吸込口（４０，２４０）は上記第１ケーシング（４０１，４１５）の側面に設けられている、空気調和機の室外機（２，２０２）。     In the air conditioner outdoor unit (2, 202) according to claim 1 or 2,
    An outdoor unit (2, 202) of an air conditioner, wherein the suction port (40, 240) is provided on a side surface of the first casing (401, 415).
  4. 　請求項１から３までのいずれか一項に記載の空気調和機の室外機（２，２０２）において、
    　上記給気装置（４，２４）は、
    　上記給気経路（Ｐ１）の上記ヒータ（４１）の上流側に、上記給気経路（Ｐ１）の一部を遮るようにかつ上記給気経路（Ｐ１）の底部から上方に向かって延びるように設けられた壁部（４３０）と、
    　上記給気経路（Ｐ１）の上記ヒータ（４１）の上流側において上記壁部（４３０）で遮られていない残り部分に設けられた網部材（４２０）と
    を有する、空気調和機の室外機（２，２０２）。     In the air conditioner outdoor unit (2, 202) according to any one of claims 1 to 3,
    The air supply device (4, 24) is
    The air supply path (P1) is provided on the upstream side of the heater (41) so as to block part of the air supply path (P1) and extend upward from the bottom of the air supply path (P1). a wall (430) provided;
    an outdoor unit of an air conditioner ( 2,202).
  5. 　請求項１から４までのいずれか一項に記載の空気調和機の室外機（２０２）において、
    　上記室外空調装置（３）および給気装置（２４）に取り付けられたカバー（２３０５）を備え、
    　上記室外空調装置（３）は、第２ケーシング（３０２，３０４，３０６）と、上記第２ケーシング（３０２，３０４，３０６）の側面に配置されると共に、上記冷媒配管（Ｌ４，Ｌ５）が接続される閉鎖弁（３６，３７）とを有し、
    　上記カバーは、上記吸込口（２４０）および上記閉鎖弁（３６，３７）を覆うと共に、上記吸込口（２４０）の下方に位置する開口（２３０５ａ）を有する、空気調和機の室外機（２０２）。     In the air conditioner outdoor unit (202) according to any one of claims 1 to 4,
    A cover (2305) attached to the outdoor air conditioner (3) and the air supply device (24),
    The outdoor air conditioner (3) is arranged on a side surface of the second casing (302, 304, 306) and the second casing (302, 304, 306), and is connected to the refrigerant pipes (L4, L5). and a closing valve (36, 37) that is
    The cover covers the suction port (240) and the closing valves (36, 37), and has an opening (2305a) located below the suction port (240). .
PCT/JP2022/034906 2021-11-09 2022-09-20 Outdoor unit for air-conditioner WO2023084919A1 (en)

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JP2021182660A JP2023070461A (en) 2021-11-09 2021-11-09 Outdoor unit for air conditioner

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004225945A (en) * 2003-01-20 2004-08-12 Daikin Ind Ltd Air conditioner and control method of air conditioner
JP2004353898A (en) * 2003-05-27 2004-12-16 Mitsubishi Electric Corp Air conditioner and its operating method
JP2008190813A (en) * 2007-02-07 2008-08-21 Hitachi Appliances Inc Air conditioner with electrostatic atomizer
JP2009236481A (en) * 2008-02-27 2009-10-15 Daikin Ind Ltd Air conditioner
JP2016118374A (en) * 2014-12-18 2016-06-30 ダイキン工業株式会社 Outdoor unit of air conditioner

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004225945A (en) * 2003-01-20 2004-08-12 Daikin Ind Ltd Air conditioner and control method of air conditioner
JP2004353898A (en) * 2003-05-27 2004-12-16 Mitsubishi Electric Corp Air conditioner and its operating method
JP2008190813A (en) * 2007-02-07 2008-08-21 Hitachi Appliances Inc Air conditioner with electrostatic atomizer
JP2009236481A (en) * 2008-02-27 2009-10-15 Daikin Ind Ltd Air conditioner
JP2016118374A (en) * 2014-12-18 2016-06-30 ダイキン工業株式会社 Outdoor unit of air conditioner

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