WO2023163194A1 - Dispositif à cycle de pompe à chaleur - Google Patents

Dispositif à cycle de pompe à chaleur Download PDF

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Publication number
WO2023163194A1
WO2023163194A1 PCT/JP2023/007186 JP2023007186W WO2023163194A1 WO 2023163194 A1 WO2023163194 A1 WO 2023163194A1 JP 2023007186 W JP2023007186 W JP 2023007186W WO 2023163194 A1 WO2023163194 A1 WO 2023163194A1
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WO
WIPO (PCT)
Prior art keywords
panel
housing
outdoor unit
heat exchanger
refrigerant
Prior art date
Application number
PCT/JP2023/007186
Other languages
English (en)
Japanese (ja)
Inventor
翔太 佐藤
Original Assignee
株式会社富士通ゼネラル
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 株式会社富士通ゼネラル filed Critical 株式会社富士通ゼネラル
Publication of WO2023163194A1 publication Critical patent/WO2023163194A1/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
    • F24F1/56—Casing or covers of separate outdoor units, e.g. fan guards

Definitions

  • the present invention relates to a heat pump cycle device having an outdoor unit with a housing provided with a handle for transportation and installation.
  • an outdoor unit used in a heat pump cycle device is equipped with a compressor that compresses the refrigerant, a heat exchanger that exchanges heat between the refrigerant and air, and a fan that sends air to the heat exchanger.
  • a compressor that compresses the refrigerant
  • a heat exchanger that exchanges heat between the refrigerant and air
  • a fan that sends air to the heat exchanger.
  • the outdoor unit itself tends to be large and heavy.
  • a plurality of handles for holding the outdoor unit are provided around the housing of the outdoor unit, and the outdoor unit, which is large and heavy, is transported and installed by a plurality of workers (for example, two people). is disclosed (see, for example, Patent Document 1).
  • Patent Document 1 for example, if the side on which an air outlet for blowing air to the outside of the housing is formed is the front of the housing, a plurality of carrying handles are formed on the front and back of the housing, respectively. ing.
  • the disclosed technology has been made in view of the above, and aims to provide a heat pump cycle device that can be easily transported without impairing its design.
  • One aspect of the heat pump cycle device disclosed in the present application includes an outdoor unit having a housing that internally stores a heat exchanger and a fan that blows air to the heat exchanger, and the housing heats heat by rotation of the fan.
  • the front panel has an outlet for blowing out the air that has exchanged heat with the refrigerant in the exchanger, the top panel is placed above the front panel, and the front panel is arranged to cover the outlet.
  • the front panel is arranged behind the front end of the top panel when the direction in which air is blown out from the air outlet is defined as the front, and the fan guard is the fan guard. It is placed on the front panel with a predetermined gap between the upper end and the top panel, and the housing is formed between the upper end of the fan guard and the top panel for transportation.
  • a hand-holding portion is provided, into which a finger can be inserted to hold the housing.
  • the heat pump cycle device disclosed in the present application it can be easily transported without impairing its design.
  • FIG. 1 is a circuit configuration diagram showing an example of a refrigerant circuit and a water circuit of a heat pump cycle device according to this embodiment.
  • FIG. 2 is an external perspective view of the outdoor unit viewed from the front side.
  • FIG. 3 is an external perspective view of the outdoor unit as seen from the rear side.
  • FIG. 4 is a perspective view showing the internal structure of the outdoor unit.
  • FIG. 5 is a partial cross-sectional view of the handle portion of the outdoor unit when the cross section indicated by line VV in FIG. 2 is viewed from the X direction.
  • FIG. 6 is a top view of the outdoor unit showing the relationship between the positions of the hook and handle portions formed on the housing and the position of the center of gravity of the outdoor unit.
  • FIG. 1 is a circuit configuration diagram showing an example of a refrigerant circuit and a water circuit of a heat pump cycle device according to this embodiment.
  • FIG. 2 is an external perspective view of the outdoor unit viewed from the front side.
  • FIG. 3 is an external perspective
  • FIG. 7 is a front view of the outdoor unit showing the relationship between the position of the handle formed on the housing and the position of the center of gravity of the outdoor unit.
  • FIG. 8 is a schematic view of the outdoor unit viewed from the front, showing the relationship between the height positions of the handle when the outdoor unit is lifted.
  • FIG. 9 is a schematic diagram showing an operation of lifting a load by bending and straightening the knees of a worker.
  • FIG. 10 is a top view showing the position of a handle provided on the outdoor unit.
  • FIG. 11 is a diagram showing a state in which three workers are carrying the outdoor unit.
  • FIG. 12 is a partially enlarged front view of the outdoor unit according to the modification as viewed from the front.
  • FIG. 1 is a circuit configuration diagram showing an example of a refrigerant circuit and a water circuit of a heat pump cycle device according to this embodiment.
  • the heat pump cycle device 1 includes an outdoor unit 2 and an indoor unit 3 , and the outdoor unit 2 and the indoor unit 3 are connected by water pipes to form a water circuit 4 .
  • the heat pump cycle device 1 cools or heats a room (space) in which the indoor unit 3 is arranged by circulating cold water or hot water in the water circuit 4 of the outdoor unit 2 and the indoor unit 3 .
  • the heat pump cycle device 1 includes one indoor unit 3 as an example, but may include a plurality of indoor units 3 connected in parallel to the outdoor unit 2 .
  • the outdoor unit 2 includes a compressor 11, a four-way valve 12, an outdoor heat exchanger (heat exchanger) 13, an outdoor expansion valve 14, a water-refrigerant heat exchanger 15, and an accumulator 16. and an outdoor fan (fan) 17 .
  • These compressor 11 , four-way valve 12 , outdoor heat exchanger 13 , outdoor expansion valve 14 , water-refrigerant heat exchanger 15 and accumulator 16 are connected by refrigerant pipes 18 to form a refrigerant circuit 10 .
  • the refrigerant circuit 10 is completed inside the outdoor unit 2 to form a refrigeration cycle.
  • a water pipe 19 is connected to the water-refrigerant heat exchanger 15 separately from the refrigerant pipe 18 .
  • the water pipe 19 extends outside the outdoor unit 2 and is connected to an indoor unit 23 (described later) of the indoor unit 3 to form a water circuit 4 .
  • the compressor 11 is, for example, a high-pressure container-type variable capacity compressor whose operating capacity can be changed, compresses the sucked low-pressure gas refrigerant, and discharges high-pressure gas refrigerant.
  • a four-way valve 12 is connected to the refrigerant discharge side of the compressor 11, and an accumulator 16 is connected to the refrigerant suction side.
  • the four-way valve 12 is a valve for switching the direction of refrigerant flow in the refrigerant circuit 10, and includes a first port 12A to a fourth port 12D.
  • the first port 12A is connected to the refrigerant discharge side of the compressor 11 .
  • the second port 12B is connected to one refrigerant inlet/outlet port 13A of the outdoor heat exchanger 13 .
  • the third port 12C is connected to the refrigerant inflow side of the accumulator 16 .
  • the fourth port 12 ⁇ /b>D is connected to one refrigerant inlet/outlet port 15 ⁇ /b>A of the water-refrigerant heat exchanger 15 .
  • the outdoor heat exchanger 13 for example, a fin-tube heat exchanger is used.
  • the outdoor heat exchanger 13 exchanges heat between the refrigerant and the outside air taken into the outdoor unit 2 by the rotation of the outdoor fan 17 .
  • the other refrigerant inlet/outlet 13B of the outdoor heat exchanger 13 is connected to the other refrigerant inlet/outlet 15B of the water-refrigerant heat exchanger 15 via the outdoor expansion valve 14 .
  • the outdoor heat exchanger 13 functions as a condenser to condense (liquefy) the gas refrigerant when the heat pump cycle device 1 performs cooling operation. Further, the outdoor heat exchanger 13 functions as an evaporator to evaporate (vaporize) the liquid refrigerant when the heat pump cycle device 1 performs heating operation.
  • the outdoor expansion valve 14 is provided between the other refrigerant inlet/outlet 13B of the outdoor heat exchanger 13 and the other refrigerant inlet/outlet 15B of the water-refrigerant heat exchanger 15 .
  • the outdoor expansion valve 14 is, for example, an electronic expansion valve, and reduces (expands) the liquid refrigerant passing through the outdoor expansion valve 14 by adjusting the valve opening degree.
  • a plate heat exchanger for example, is used as the water-refrigerant heat exchanger 15 .
  • the water-refrigerant heat exchanger 15 exchanges heat between the refrigerant circulating in the refrigerant circuit 10 and the water circulating in the water circuit 4 .
  • the water-refrigerant heat exchanger 15 functions as an evaporator to evaporate (vaporize) the liquid refrigerant when the heat pump cycle device 1 performs cooling operation or defrosting operation. Further, the water-refrigerant heat exchanger 15 functions as a condenser to condense (liquefy) the gas refrigerant when the heat pump cycle device 1 performs heating operation.
  • the water-refrigerant heat exchanger 15 has a water inlet 15C and a water outlet 15D, and a water pipe 19 is connected to each of the water inlet 15C and the water outlet 15D to form part of the water circuit 4 . Further, for example, a circulation pump 21 for circulating water in the water circuit 4 is provided on the water inlet 15C side, and an air vent valve 22 for removing air entering the water circuit 4 is provided on the water outlet 15D side. be done.
  • the refrigerant inflow side of the accumulator 16 is connected to the third port 12C of the four-way valve 12, and the refrigerant outflow side is connected to the refrigerant inflow side of the compressor 11.
  • the accumulator 16 is formed as a hollow high-pressure container, separates the refrigerant that has flowed inside into gas refrigerant and liquid refrigerant, and allows the compressor 11 to suck only the gas refrigerant.
  • the outdoor fan 17 is arranged near the outdoor heat exchanger 13 and sends air toward the outdoor heat exchanger 13 . Specifically, the outdoor fan 17 takes in outside air into the interior of the outdoor unit 2 from a later-described suction port 44 of the outdoor unit 2, and heat-exchanges the outside air with the refrigerant in the outdoor heat exchanger 13 from the below-described blowout port 41. It is discharged to the outside of the outdoor unit 2 .
  • the indoor unit 3 has an indoor unit 23.
  • a floor heating system or a radiator is used for the indoor unit 23.
  • One refrigerant inlet/outlet 23A of the indoor unit 23 is connected to the water outlet 15D of the water-refrigerant heat exchanger 15 .
  • the other refrigerant inlet/outlet 23B of the indoor unit 23 is connected to the water inlet 15C of the water-refrigerant heat exchanger 15 via the circulation pump 21 .
  • the indoor unit 23 is connected to the water-refrigerant heat exchanger 15 via the water pipe 19 to form the water circuit 4, and the water circulating in the water circuit 4 releases heat or absorbs heat in the indoor unit 23,
  • the air-conditioned space in which the indoor unit 3 is installed is heated or cooled.
  • the four-way valve 12 is switched so that the first port 12A and the fourth port 12D are communicated and the second port 12B and the third port 12C are communicated. be done.
  • the refrigerant circuit 10 becomes a heating cycle in which the water-refrigerant heat exchanger 15 functions as a condenser and the outdoor heat exchanger 13 functions as an evaporator.
  • the refrigerant discharged from the compressor 11 flows into the four-way valve 12 and flows from the four-way valve 12 into the water-refrigerant heat exchanger 15 .
  • the high-temperature gas refrigerant that has flowed into the water-refrigerant heat exchanger 15 is condensed by exchanging heat with water circulating in the water circuit 4 of the water-refrigerant heat exchanger 15 by the operation of the circulation pump 21 .
  • the water circulating in the water circuit 4 is heated by the refrigerant in the water-refrigerant heat exchanger 15 to become hot water.
  • This hot water flows into the indoor unit 23 of the indoor unit 3 through the water pipe 19 of the water circuit 4 .
  • the hot water radiates heat in the indoor unit 23, thereby heating the room in which the indoor unit 3 is installed.
  • the refrigerant that has flowed into the outdoor heat exchanger 13 exchanges heat with the outside air that has flowed into the outdoor unit 2 due to the rotation of the outdoor fan 17, and evaporates.
  • the gaseous refrigerant evaporated in the outdoor heat exchanger 13 passes through the four-way valve 12 and the accumulator 16 in that order, is sucked into the compressor 11, and is compressed again.
  • the four-way valve 12 communicates between the first port 12A and the second port 12B, and communicates between the third port 12C and the fourth port 12D. are switched to communicate with each other.
  • the refrigerant circuit 10 becomes a cooling cycle in which the water-refrigerant heat exchanger 15 functions as an evaporator and the outdoor heat exchanger 13 functions as a condenser.
  • the compressor 11 When the compressor 11 is driven with the refrigerant circuit 10 in the above state, the refrigerant discharged from the compressor 11 flows into the four-way valve 12 and flows into the outdoor heat exchanger 13 from the four-way valve 12 .
  • the high-temperature gas refrigerant that has flowed into the outdoor heat exchanger 13 is condensed by exchanging heat with the outdoor air taken into the outdoor unit 2 by the rotation of the outdoor fan 17 . Note that when the defrosting operation is performed, the frost generated in the outdoor heat exchanger 13 is melted by the heat of the refrigerant flowing into the outdoor heat exchanger 13 .
  • the liquid refrigerant condensed in the outdoor heat exchanger 13 flows into the water-refrigerant heat exchanger 15 after passing through the outdoor expansion valve 14 and being decompressed.
  • the liquid refrigerant that has flowed into the water-refrigerant heat exchanger 15 evaporates by exchanging heat with water circulating in the water circuit 4 of the water-refrigerant heat exchanger 15 by the operation of the circulation pump 21 .
  • the water circulating in the water circuit 4 is cooled by the refrigerant in the water-refrigerant heat exchanger 15 to become cold water. This cold water flows into the indoor unit 23 of the indoor unit 3 through the water pipe 19 of the water circuit 4 .
  • the cold water absorbs heat from the indoor air in the indoor unit 23, so that the room in which the indoor unit 3 is installed is cooled.
  • the circulation pump 21 is stopped to stop the circulation of water in the water circuit 4 in order to suppress the decrease in the indoor temperature.
  • the gas refrigerant evaporated in the water-refrigerant heat exchanger 15 passes through the four-way valve 12 and the accumulator 16 in that order, is sucked into the compressor 11, and is compressed again.
  • FIG. 2 is an external perspective view of the outdoor unit viewed from the front side
  • FIG. 3 is an external perspective view of the outdoor unit viewed from the rear side
  • FIG. 4 is a perspective view showing the internal structure of the outdoor unit. Note that the directions such as front and back, up and down, and left and right described below refer to the direction in which the air is blown out from the outlet 41 described later with the outdoor unit 2 installed, and the direction when the outdoor unit 2 is viewed from the front side. showing direction.
  • the outdoor unit 2 includes a rectangular parallelepiped box-shaped housing 30 whose dimension in the left-right direction (width direction) is greater than its dimension in the front-back direction (depth direction).
  • the housing 30 includes a bottom plate (bottom panel) 31 arranged so as to face the installation surface, a top panel 32 arranged above the bottom plate 31 in the height direction, the bottom plate 31 and the top panel 32 , and a side panel portion 33 that separates the inside and outside of the housing 30 .
  • the interior of the housing 30 is partitioned into a heat exchange room RA and a machine room RB by a partition plate 34 erected on the bottom plate 31 .
  • an outdoor heat exchanger 13 is arranged on the rear side of the heat exchange room RA, and an outdoor fan 17 is arranged on the front side thereof.
  • the outdoor heat exchanger 13 is bent into an L shape when viewed from the top (top panel 32 side), and is supported by the bottom plate 31 along the left side from the back side of the heat exchange chamber RA. ing.
  • the outdoor fan 17 is attached to a pair of supporting members 35, 35 erected on the bottom plate 31.
  • the outdoor fan 17 is a so-called axial fan, and is driven to rotate by a fan motor (not shown). ) and a suction opening 46 (described later) formed on the left side surface of the heat exchange chamber RA. Then, the air after heat-exchanging with the refrigerant in the outdoor heat exchanger 13 is blown forward from a blow-out port 41 (described later) formed on the front side of the heat exchange room RA.
  • the outdoor unit 2 is a front blowing type outdoor unit that blows out air after heat exchange from the front side.
  • Circuit components such as a compressor 11, an accumulator 16, a four-way valve 12 (FIG. 1), and an outdoor expansion valve 14 (FIG. 1), which form part of the refrigerant circuit 10, are arranged in the lower space of the machine room RB. Each circuit component is connected by a refrigerant pipe 18 . Compressor 11 and accumulator 16 are fixed to bottom plate 31 . In the lower space of the machine room RB, circuit components such as a water-refrigerant heat exchanger 15, an air vent valve 22, and a circulation pump 21, which constitute a part of the water circuit 4, are arranged. They are connected by piping 19 . In this embodiment, the water-refrigerant heat exchanger 15 is arranged near the corner between the back side and the right side in the lower space of the machine room RB (housing 30). A connection port 47 is provided.
  • An electrical unit 25 having electrical components for controlling the operation of the outdoor unit 2 is arranged in the upper space of the machine room RB.
  • the electrical unit 25 includes a control board 27 and a terminal portion 26 to which wires such as power lines and control lines are connected, and is fixed to the partition plate 34 .
  • the terminal portion 26 is arranged near the right side in the upper space of the machine room RB, facing the right side.
  • the side panel portion 33 of the housing 30 is formed by combining a plurality of panel members.
  • the side panel section 33 includes a front panel 36, a rear panel 37, a right side panel 38, a left side panel 39, and a service panel 40, as shown in FIGS.
  • the front panel 36, rear panel 37, right side panel 38, and left side panel 39 are formed by two adjacent surfaces of the housing 30 and the corner sandwiched between these two surfaces when the housing 30 is viewed from above. Each is formed in an L-shape including a part.
  • the front panel 36 integrally includes a first front surface portion 36A forming part of the front surface of the housing 30 and a first left side surface portion 36B forming part of the left side surface of the housing 30.
  • the rear panel 37 integrally includes a first rear portion 37A forming part of the rear surface of the housing 30 and a first right side portion 37B forming part of the right side surface of the housing 30 .
  • the right side panel 38 integrally includes a second right side portion 38A that forms a portion of the right side surface of the housing 30 and a second front portion 38B that forms a portion of the front surface of the housing 30 .
  • the left side panel 39 integrally includes a second left side portion 39A forming part of the left side surface of the housing 30 and a second rear portion 39B forming part of the rear surface of the housing 30 .
  • the first front part 36A of the front panel 36 is arranged on the front side of the heat exchange room RA, and the second front part 38B of the right side panel 38 is arranged on the front side of the machine room RB.
  • the first front surface portion 36A and the second front surface portion 38B are arranged side by side to form the front surface of the housing 30 .
  • the first front face portion 36A is formed with a blowout port 41 through which the air heat-exchanged inside the heat exchange chamber RA blows out.
  • the outlet 41 has, for example, a circular bell mouth 41A, and a part of the outdoor fan 17 is arranged inside the bell mouth 41A.
  • a net-like fan guard 42 that covers the outlet 41 is provided in front of the front panel 36 .
  • the fan guard 42 is L-shaped when viewed from above, and is arranged from the first front surface portion 36A to the first left side surface portion 36B of the front panel 36. As shown in FIG. The fan guard 42 is fixed to the front panel 36 with a predetermined gap between the upper end (upper end) 42A of the fan guard 42 and the top panel 32 . A water shielding plate 43 extending in the left-right (width) direction is provided above the outlet 41 in the first front surface portion 36A.
  • a first rear surface portion 37A of the rear panel 37 and a second rear surface portion 39B of the left side panel 39 are arranged side by side with a space therebetween to form the rear surface of the housing 30.
  • the outdoor heat exchanger 13 is arranged to be exposed between the first rear surface portion 37A and the second rear surface portion 39B, and the exposed area serves as the suction port 44.
  • a net-like fingered 45 is provided behind the suction port 44 .
  • the first rear portion 37A is arranged on the rear side of the machine room RB, and a pair of connection ports 47 for connecting to the water pipes 19 of the water circuit 4 are provided at the lower portion of the first rear portion 37A. , 47 are provided.
  • the second right side portion 38A of the right side panel 38 and the first right side portion 37B of the rear panel 37 are arranged side by side with a space therebetween to form the right side surface of the housing 30 .
  • the service panel 40 is detachably arranged between the second right side portion 38A and the first right side portion 37B. By removing this service panel 40, the inside of the machine room RB can be accessed, and maintenance of the electrical unit 25 and various circuit components can be easily performed.
  • the second left side portion 39A of the left side panel 39 and the first left side portion 36B of the front panel 36 are arranged side by side in the front-rear direction to form the left side of the housing 30.
  • the second left side surface 39A faces a portion of the outdoor heat exchanger 13, and a plurality of suction openings 46 are formed in the second left side surface 39A.
  • the side panel portion 33 of the housing 30 is provided with a plurality of handle portions 51, 52, 53 for carrying the outdoor unit 2. These handles 51 to 53 are arranged near the corners of the housing 30, respectively.
  • the front panel 36 of the housing 30 is provided with a handle portion 50 that functions as a handle portion with an inconspicuous appearance.
  • FIG. 5 is a partial cross-sectional view of the handle portion of the outdoor unit when the cross section indicated by line VV in FIG. 2 is viewed from the X direction.
  • the handle portion 50 is formed between the upper end portion 42A of the fan guard 42 arranged on the front panel 36 and the top panel 32, and is used when the outdoor unit 2 is transported or relocated (installed). This is a part into which a worker's fingers are sometimes inserted to hold the outdoor unit 2 .
  • the first front surface portion 36A of the front panel 36 is arranged behind the front end portion 32A of the top surface panel 32, and the handle portion 50 is formed by bending the upper end of the first front surface portion 36A forward and forming a bent portion 36A1. It is formed by connecting the front end portion 32A of the top panel 32 .
  • the top panel 32 has a front end portion 32A (end portion on the front side) that is bent downward, and the bent portion 36A1 includes a first bent portion 36A11 that is bent forward and a tip of the first bent portion 36A11 that is further bent upward. and a second bent portion 36A12 that is bent inward. Then, by fixing the second bent portion 36A12 of the first front surface portion 36A and the front end portion 32A of the top panel 32 with screws, the handle portion 50 is formed such that the front portion of the top surface of the housing 30 is eaves-like. It is formed as an extended structure.
  • the first bent portion 36A11 may be provided with a concave portion facing upward to make it easier for the operator to grip.
  • the outdoor unit 2 can be held during transportation by placing a finger on the handle portion 50 .
  • the handle portion 50 is formed as part of the structural body of the housing 30 between the upper end portion 42A of the fan guard 42 and the top panel 32 . Therefore, even when the outdoor unit 2 is viewed from the front side in particular, the handle portion 50 is hardly visible as a so-called handle portion, so that the design of the outdoor unit 2 can be prevented from being spoiled.
  • the handle portion 50 is formed along the width direction (horizontal direction) of the first front surface portion 36A of the front panel 36. As shown in FIG. Therefore, the operator can arbitrarily select a position for holding the handle portion 50, and workability during transportation and installation can be improved.
  • FIG. 6 is a top view of the outdoor unit showing the relationship between the positions of the hook and handle portions formed on the housing and the position of the center of gravity of the outdoor unit.
  • FIG. 7 is a front view of the outdoor unit showing the relationship between the position of the handle formed on the housing and the position of the center of gravity of the outdoor unit. In FIGS. 6 and 7, parts included in the outdoor unit are appropriately omitted to show the position of the handle.
  • FIG. 8 is a schematic view of the outdoor unit viewed from the front, showing the relationship of the height position of the handle portion when the outdoor unit is lifted.
  • FIG. 9 is a schematic diagram showing an operation of lifting a load by bending and straightening the knees of a worker.
  • the outdoor unit 2 includes three (plural) second handle portions 51, a third handle portion 52, and a fourth handle in addition to the handle portion 50 functioning as the first handle portion.
  • a portion 53 is provided.
  • the second handle portion 51 to the fourth handle portion 53 are provided on the side panel portion 33 of the housing 30, respectively, and are recesses projecting inward of the housing 30.
  • the outdoor unit 2 has a different weight balance (center of gravity position) depending on the arrangement of circuit components such as the compressor 11 and the outdoor heat exchanger 13 that are housed inside the housing 30 . Therefore, in order to facilitate the work of carrying and installing the outdoor unit 2 by a plurality of workers holding the handle, the arrangement position of the handle is important.
  • the handle portion (first handle portion) 50 and the three second to fourth handle portions 51 to 53 are, as shown in FIG. , are arranged to surround the position of the center of gravity G of the outdoor unit 2 . That is, when the housing 30 is viewed from above, the first virtual area VA is formed by connecting the adjacent first handle portion (handle portion) 50 to the fourth handle portion 53 with the first virtual line VL.
  • the second handle portion 51 to the fourth handle portion 53 and the handle portion 50 are arranged so that the center of gravity G of the outdoor unit 2 exists at .
  • the center of gravity G of the outdoor unit 2 refers to the point of action of the resultant force of gravity acting on the mass of each component constituting the outdoor unit 2.
  • the center of gravity G of the outdoor unit 2 can be regarded as an aggregate of each component of the outdoor unit 2, and can be calculated from the weight and center of gravity of each component using a known formula.
  • the center of gravity G of the outdoor unit 2 can also be obtained from the design drawing of the outdoor unit 2 using CAD (computer-aided design) software.
  • the second handle portion 51 to the fourth handle portion 53 are provided at positions higher than the position of the center of gravity G when the housing 30 is viewed from the front (side). That is, the second to fourth handle portions 51 to 53 adjacent to each other are connected by a second virtual line VL1, and when the housing 30 is viewed from the front surface (side surface), the second handle portion 51 to the fourth handle portion 53 are located below the second virtual line VL1.
  • the second handle portion 51 to the fourth handle portion 53 are arranged so that the center of gravity G of the outdoor unit 2 exists within the second virtual area VA1.
  • the outdoor unit 2 can be lifted and held at a position higher than the position of the center of gravity G, the force that tends to rotate the outdoor unit 2 when the outdoor unit 2 is lifted can be suppressed. can. Therefore, the heavy outdoor unit 2 can be stably transported and installed.
  • the second handle portion 51 to the fourth handle portion 53 are provided near the corners of the side panel portion 33, respectively, as shown in FIGS.
  • the second handle portion 51 is provided on the right side of the rear surface of the housing 30 , that is, on the first rear surface portion 37 ⁇ /b>A of the rear panel 37 .
  • the third handle portion 52 is provided on the front side of the right side surface of the housing 30 , that is, on the second right side portion 38 ⁇ /b>A of the right side panel 38 .
  • the third handle portion 52 is provided at a corner portion of the left side panel 39 on the rear side of the left side, that is, across the second left side portion 39A to the second rear portion 39B of the left side panel 39 .
  • the second handle portion 51 to the fourth handle portion 53 are provided near the corners of the side panel portion 33, respectively, so that the second handle portion 51 to the fourth handle portion 53 are arranged apart from each other. can do.
  • the outdoor unit 2 can be transported by a plurality of people, and the workability of transportation and installation can be improved.
  • the second handle portion 51 arranged on the first rear portion 37A of the rear panel 37 and the second right side portion 38A of the right side panel 38 are arranged on the side where the center of gravity G is biased.
  • the arranged third handle portion 52 is provided at the same height H ⁇ b>1 from the bottom plate 31 . According to this configuration, when one or two workers put their hands on the second handle portion 51 and the third handle portion 52 to lift the outdoor unit 2, the workers receive a difference in force. can be suppressed. Therefore, it is possible to prevent the outdoor unit 2 from falling down in the front-rear direction due to the difference in force, so that the outdoor unit 2 can be stably transported.
  • the fourth handle portion 53 arranged on the left side panel 39 on the opposite side is provided at a height H2 from the bottom plate 31 .
  • the height H1 of the second handle portion 51 and the third handle portion 52 from the bottom plate 31 is set higher than the height H2 of the fourth handle portion 53 from the bottom plate 31 .
  • the height H1 of the second handle portion 51 and the third handle portion 52 closer to the center of gravity G is set higher than the height H2 of the fourth handle portion 53 farther from the center G of gravity. For this reason, as shown in FIG.
  • the height for lifting the second handle portion 51 and the third handle portion 52 on the side with a large (so-called heavy) weight load is adjusted to the height at which the weight load is small. It is possible to keep the fourth handle portion 53 on the (so-called light) side lower than the height at which it is lifted. As a result, while holding the second handle portion 51 and the third handle portion 52 side to reduce the burden on the worker who carries the outdoor unit 2, as shown in FIG.
  • the height of the second handle portion 51 and the third handle portion 52 from the bottom plate 31 is the same as the height of the fourth handle portion from the bottom plate 31, so that the outdoor unit 2 can be stably transported.
  • the height H1 of the second handle portion 51 and the third handle portion 52 closer to the center of gravity G from the bottom plate 31 is set to 450 (mm) or more and 500 (mm) or less.
  • the height H2 from the bottom plate 31 of the fourth handle portion 53 on the far side from the center of gravity G is set to 410 (mm) or more and 460 (mm) or less.
  • the outdoor unit 2 can be transported safely and efficiently. Furthermore, by setting the heights H1 and H2 within the ranges described above, the operator can adjust the height between the bottom plate 31 of the outdoor unit 2 and the installation surface to the height of the skit for transportation or the height of the legs for installation. It can be lifted higher than its size. Therefore, the outdoor unit 2 can be safely installed at the installation location.
  • the second handle portion 51 provided on the back panel 37 is arranged near the corner of the housing 30 on the side of the machine room RB.
  • heavy circuit components such as the compressor 11 and the water-refrigerant heat exchanger 15 are arranged.
  • the second handle portion 51 to the fourth handle portion 53 are provided on the side panel portion 33 avoiding the service panel 40, that is, the rear panel 37, the right side panel 38 and the left side panel 39, respectively.
  • the second The outdoor unit 2 can be easily moved using the handle portion 51 to the fourth handle portion 53 .
  • FIG. 10 is a top view showing the position of a handle provided on the outdoor unit 2
  • FIG. 11 is a diagram showing a state in which three workers are carrying the outdoor unit 2.
  • the housing 30 of the outdoor unit 2 is provided with the handle portion 50 functioning as the first handle portion and the second handle portion 51 to the fourth handle portion 53 .
  • the handle portion 50 is provided on the first front portion 36A of the front panel 36
  • the second handle portion 51 is provided on the first rear portion 37A of the rear panel 37.
  • FIG. 10 is a top view showing the position of a handle provided on the outdoor unit 2
  • FIG. 11 is a diagram showing a state in which three workers are carrying the outdoor unit 2.
  • the housing 30 of the outdoor unit 2 is provided with the handle portion 50 functioning as the first handle portion and the second handle portion 51 to the fourth handle portion 53 .
  • the handle portion 50 is provided on the first front portion 36A of the front panel 36
  • the second handle portion 51 is provided on the first rear portion 37A of the rear panel 37.
  • the third handle portion 52 is provided on the second right side portion 38A of the right side panel 38, and the fourth handle portion 53 is provided on the corner between the second left side portion 39A of the left side panel 39 and the second rear portion 39B. is provided in Therefore, in the present embodiment, the distance between the first handle portion (handle portion) 50 to the fourth handle portion 53 can be separated from each other. The direction in which an operator's hand enters the first handle portion (handhold portion) 50 to the fourth handle portion 53 does not overlap.
  • the first worker M1 lifts the relatively light heat exchange chamber RA (FIG. 6) side by himself, and the second worker M2 and the third worker M3 lift the relatively heavy weight.
  • the right hand of the first worker M1 is placed on the first handle portion (handhold portion) 50 and the left hand is placed on the fourth handle portion 53 .
  • the right hand of the second worker M2 is placed on the second handle portion 51, and the right side of the housing 30 is held with the left hand.
  • the right hand of the third worker M3 is hung on the third handle portion 52 and the left hand is hung on the first handle portion (handhold portion) 50 .
  • the outdoor unit 2 can be stably transported.
  • the outdoor unit 2 of the heat pump cycle device 1 has the housing 30 that houses therein the outdoor heat exchanger 13 and the outdoor fan 17 that blows air to the outdoor heat exchanger 13 .
  • the housing 30 has a front panel 36 provided with a blowout port 41 for blowing out the air heat-exchanged with the refrigerant in the outdoor heat exchanger 13 by the rotation of the outdoor fan 17, and above the front panel 36. It has a top panel 32 arranged and a fan guard 42 arranged on a front panel 36 so as to cover an air outlet 41.
  • the front panel 36 is arranged behind the front end portion 32A of the top panel 32 when the direction in which the air is blown out from the blowout port 41 is defined as the front side, and the fan guard 42 is provided with an upper end portion 42A of the fan guard and the top panel. 32, is arranged on the front panel 36 with a predetermined gap therebetween.
  • the housing 30 is formed between the upper end portion 42A of the fan guard 42 and the top panel 32, and includes a handhold portion 50 into which fingers can be inserted to hold the outdoor unit 2 when the outdoor unit 2 is carried. . According to this configuration, since the handle portion 50 looks like the design of the housing 30 and the fan guard 42, it is possible to prevent the design of the outdoor unit 2 from being spoiled. Furthermore, since the handle part 50 is a structure provided in a part of the housing 30, it has sufficient strength for holding and the outdoor unit 2 can be easily transported.
  • the handle portion 50 is formed along the width direction of the front panel 36, so that the operator can arbitrarily select the portion to be held. It is possible to improve workability during transportation and installation.
  • the front panel 36 has a bent portion 36A1 extending forward from the upper end portion at its upper end portion, and the handle portion 50 includes the bent portion 36A1 and the ceiling. It is formed by connecting the front end portion 32 ⁇ /b>A of the surface panel 32 .
  • the handle portion 50 can be formed as a structure of the housing 30 having sufficient strength, the outdoor unit 2 can be easily transported. Furthermore, for example, the outdoor unit 2 can be manufactured at a lower cost than in the case where all the panels of the housing are provided with handles.
  • the housing 30 has a side panel portion 33 that partitions the inside and outside of the housing 30 together with the front panel 36.
  • the side panel portion 33 A second handle portion 51 to a fourth handle portion 53 for carrying the outdoor unit 2 are provided at the end. According to this configuration, the worker can safely carry out the work without losing balance by holding the handle portion 50 and the second handle portion 51 to the fourth handle portion 53 during transportation and installation work. It is possible to improve the workability of transportation and installation work.
  • the side panel portion 33 is arranged on the opposite side of the front panel 36 with the outdoor heat exchanger 13 interposed therebetween, and partially covers the rear surface of the housing 30.
  • a rear panel 37 forming a right side panel 38 forming part of the right side of the housing 30;
  • a left side panel 39 forming part of the left side of the housing 30;
  • One of the portion 51 to the fourth handle portion 53 is provided on each of the rear panel 37 , the right side panel 38 and the left side panel 39 . According to this configuration, workability is improved when three or more workers carry out and install the outdoor unit 2 .
  • the outdoor unit 2 of the heat pump cycle device 1 has a compressor 11 and a water-refrigerant heat exchanger 15 that exchanges heat between a refrigerant and water.
  • 51 is arranged on the machine room RB side. According to this configuration, by providing the second handle portion 51 on the side of the machine room RB, which is heavier than the heat exchange room RA, the workability of carrying and installing the outdoor unit 2 is further improved. be able to.
  • the housing 30 has a service panel 40 that covers a part of the machine room RB and is detachable from the housing 30.
  • the fourth handle portion 53 is provided on each of the rear panel 37 , the right side panel 38 and the left side panel 39 avoiding the service panel 40 . According to this configuration, when the service panel 40 is removed and the equipment in the machine room RB is being worked on, for example, even if a situation occurs in which the wiring does not reach the terminal portion 26 at the time of wiring, the second The outdoor unit 2 can be easily moved using the handle portion 51 to the fourth handle portion 53 .
  • FIG. 12 is a partially enlarged front view of the outdoor unit according to the modification as viewed from the front.
  • the handle portion 50 is formed along the width direction of the first front portion 36A of the front panel 36, but the configuration is not limited to this.
  • the housing 30A of the outdoor unit 2A is provided with a fan guard 142, and the fan guard 142 has an upper end (upper side end) 142A whose width direction central portion is the top panel 32. extends to.
  • the handle portions 50 may be formed only on both sides in the width direction of the first front surface portion 36A of the front panel 36. Also in this configuration, the operator inserts his fingers into the handle portions 50. As a result, the outdoor unit 2A can be easily transported without impairing the design.
  • the casing 30 is provided with three handle portions, ie, the second handle portion 51 to the fourth handle portion 53, but four or more handle portions may be provided.
  • the rear panel 37, the right side panel 38 and the left side panel 39 are each provided with one handle portion, each panel may be provided with two or more handle portions.
  • one fourth handle 53 is provided on the left side (left side panel 39) of the housing 30 far from the center of gravity G.
  • a section may be provided. In this case, the height from the bottom plate 31 to each handle is preferably the same.
  • the heat pump cycle device is described as one that performs air conditioning operation by circulating water between the outdoor unit 2 and the indoor unit 3.
  • the air conditioner may be an air conditioner that supplies refrigerant to the indoor heat exchanger and causes the refrigerant to radiate heat or absorb heat in the indoor heat exchanger to perform air conditioning operation.

Landscapes

  • 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

Boîtier (30) comprenant : un panneau avant (36) pourvu d'un orifice de soufflage (41) pour souffler de l'air échangé thermiquement avec un fluide frigorigène dans un échangeur thermique extérieur par la rotation d'un ventilateur extérieur (17) vers l'extérieur du boîtier (30) ; un panneau supérieur (32) agencé au-dessus du panneau avant (36) ; et une protection de ventilateur (42) agencée sur le panneau avant (36) de façon à recouvrir l'orifice de soufflage (41). Lorsque la direction dans laquelle l'air est soufflé à partir de l'orifice de soufflage (41) est vers l'avant, le panneau avant (36) est agencé derrière une extrémité avant (32A) du panneau supérieur (32) et la protection de ventilateur (42) est agencée sur le panneau avant (36) avec un espace prédéterminé entre une extrémité supérieure (42A) de la protection de ventilateur (42) et le panneau supérieur (32). Le boîtier (30) est pourvu d'une poignée (50) qui est formée entre l'extrémité supérieure (42A) de la protection de ventilateur (42) et le panneau supérieur (32) et dans laquelle des doigts peuvent être insérés pour maintenir le boîtier (30) pendant le transport.
PCT/JP2023/007186 2022-02-28 2023-02-28 Dispositif à cycle de pompe à chaleur WO2023163194A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2022029273A JP2023125273A (ja) 2022-02-28 2022-02-28 ヒートポンプサイクル装置
JP2022-029273 2022-02-28

Publications (1)

Publication Number Publication Date
WO2023163194A1 true WO2023163194A1 (fr) 2023-08-31

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PCT/JP2023/007186 WO2023163194A1 (fr) 2022-02-28 2023-02-28 Dispositif à cycle de pompe à chaleur

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JP (1) JP2023125273A (fr)
WO (1) WO2023163194A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09189436A (ja) * 1996-01-08 1997-07-22 Sanyo Electric Co Ltd 空気調和機
JP2013124822A (ja) * 2011-12-15 2013-06-24 Mitsubishi Electric Corp 空気調和機の室外機
JP2014114983A (ja) * 2012-12-07 2014-06-26 Panasonic Corp ヒートポンプ装置
WO2018025325A1 (fr) * 2016-08-02 2018-02-08 三菱電機株式会社 Unité extérieure, dispositif de climatisation et procédé de fabrication de poignée d'unité extérieure

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09189436A (ja) * 1996-01-08 1997-07-22 Sanyo Electric Co Ltd 空気調和機
JP2013124822A (ja) * 2011-12-15 2013-06-24 Mitsubishi Electric Corp 空気調和機の室外機
JP2014114983A (ja) * 2012-12-07 2014-06-26 Panasonic Corp ヒートポンプ装置
WO2018025325A1 (fr) * 2016-08-02 2018-02-08 三菱電機株式会社 Unité extérieure, dispositif de climatisation et procédé de fabrication de poignée d'unité extérieure

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