WO2022029913A1 - 室外機 - Google Patents

室外機 Download PDF

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Publication number
WO2022029913A1
WO2022029913A1 PCT/JP2020/029950 JP2020029950W WO2022029913A1 WO 2022029913 A1 WO2022029913 A1 WO 2022029913A1 JP 2020029950 W JP2020029950 W JP 2020029950W WO 2022029913 A1 WO2022029913 A1 WO 2022029913A1
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WO
WIPO (PCT)
Prior art keywords
drain
socket
bottom plate
outdoor unit
base
Prior art date
Application number
PCT/JP2020/029950
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
隼人 栗野
寛之 陣内
Original Assignee
三菱電機株式会社
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 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to JP2022541397A priority Critical patent/JPWO2022029913A1/ja
Priority to CN202080101166.6A priority patent/CN117280161A/zh
Priority to PCT/JP2020/029950 priority patent/WO2022029913A1/ja
Publication of WO2022029913A1 publication Critical patent/WO2022029913A1/ja

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Classifications

    • 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
    • F24F1/36—Drip trays for outdoor units

Definitions

  • This disclosure relates to the connection configuration between the outdoor unit and the drain hose.
  • a socket for connecting a drain hose outside the machine is attached to a drain hole formed in the bottom plate.
  • the drain water generated inside the outdoor unit or the rainwater that has entered the blower room of the outdoor unit is drained through the drain hose.
  • the outdoor unit has a structure in which water is drained from the bottom plate to the lower part of the bottom plate as in Patent Document 1, a space for attaching a socket is required under the bottom plate.
  • the environment in which the outdoor unit is installed is an environment in which a distance cannot be provided below the bottom plate, the arrangement of the socket that requires a space for mounting below the bottom plate as in Patent Document 1 is not suitable.
  • a technology has also been proposed in which a drain hose is connected to a drain hole on the side of the housing, such as the back of the outdoor unit, instead of the bottom plate of the outdoor unit, to drain water.
  • a drain hose is connected to a drain hole on the side of the housing, such as the back of the outdoor unit, instead of the bottom plate of the outdoor unit, to drain water.
  • the present disclosure has been made in order to solve the above-mentioned problems, and an object of the present invention is to provide an outdoor unit having an improved degree of freedom in the direction of handling the drain hose in drainage from the side of the housing.
  • the outdoor unit covers a housing having a bottom plate in which a heat exchanger is housed and a first drain hole for draining water is formed, and the first drain hole of the bottom plate from below, and the first drain hole is covered.
  • a drain base having a surface and a drain hose rotatably connected to the rising surface of the drain base, and the second drain hole of the drain base and a drain hose for draining water flowing from the second drain hole are connected. It is equipped with a socket that is installed.
  • the socket to which the drain hose is connected is rotatably connected to the second drain hole formed at the rising portion of the drain base along the side of the housing.
  • the degree of freedom in the direction of handling the drain hose can be improved.
  • FIG. 5 is an external perspective view of the outdoor unit according to the first embodiment as viewed from the front right.
  • FIG. 5 is an external perspective view of the outdoor unit according to the first embodiment as viewed from the rear right.
  • It is the schematic perspective view which looked at the inside of the outdoor unit which concerns on Embodiment 1 from the right front.
  • It is the schematic perspective view which looked at the bottom plate which concerns on Embodiment 1 from the right front.
  • It is an enlarged perspective view of the bottom plate which concerns on Embodiment 1.
  • FIG. It is a perspective view explaining the connection structure of the drain hose which concerns on Embodiment 1.
  • FIG. is a schematic perspective view of the drain base which concerns on Embodiment 1.
  • FIG. 5 is a schematic view of the socket according to the second embodiment as viewed from one end side of the socket in the axial direction of the first connection portion.
  • FIG. It is the schematic of the socket which concerns on Embodiment 2.
  • FIG. It is a perspective view which shows the state which attached the socket which concerns on Embodiment 2 to a drain base.
  • FIG. It is a schematic diagram which shows the arrangement when a socket is attached to the drain base which concerns on Embodiment 2.
  • FIG. It is a three-view view of the socket which concerns on Embodiment 3.
  • FIG. It is a top view which shows the state which attached the socket which concerns on Embodiment 3 to an outdoor unit.
  • Embodiment 1 the outdoor unit 100 according to the first embodiment will be described.
  • the size relationship of each component may differ from the actual one.
  • those having the same reference numerals are the same or equivalent thereof, and this shall be common to the entire text of the specification.
  • the forms of the components represented in the full text of the specification are merely examples, and are not limited to these descriptions.
  • the X direction indicates the left-right direction of the outdoor unit 100, and the arrow indicates the right-to-left direction.
  • the Y direction indicates the front-rear direction of the outdoor unit 100, and the arrow indicates the front-to-back direction.
  • the Z direction indicates the vertical direction of the outdoor unit 100, and the arrow indicates the upward direction from the bottom.
  • FIG. 1 is an external perspective view of the outdoor unit 100 according to the first embodiment as viewed from the front right.
  • FIG. 2 is an external perspective view of the outdoor unit 100 according to the first embodiment as viewed from the rear right.
  • the outdoor unit 100 according to the first embodiment is composed of a rectangular parallelepiped housing 100A having a bottom plate 1, a front panel 102, a side panel 103, a back panel 104, and a top panel 105.
  • the outer shell is composed.
  • the bottom plate 1 is a sheet metal constituting the lower surface of the housing 100A.
  • the bottom plate 1 is provided on the upper part of the leg portion 10.
  • the legs 10 are provided on the ground on which the outdoor unit 100 is installed and support the bottom plate 1.
  • a drain base 7 is attached to the back surface side of the bottom plate 1.
  • a drain hose 9 is connected to the drain base 7 via the socket 8. The drain base 7, the socket 8, and the drain hose 9 will be described later with reference to FIG.
  • the front panel 102 is arranged so as to extend upward from the front edge and the right edge of the bottom plate 1, and constitutes the front surface of the housing 100A.
  • the front panel 102 is an L-shaped sheet metal in a plan view.
  • An opening 102a through which air is blown out is formed in a portion of the front panel 102 that constitutes the front surface of the housing 100A.
  • a fan guard 106 is attached to the opening 102a.
  • the fan guard 106 is a grid-like member that covers the opening 102a, and suppresses foreign matter from entering the inside of the outdoor unit 100.
  • the side panel 103 is arranged so as to extend upward from the left edge of the bottom plate 1.
  • the side panel 103 is a sheet metal constituting the left side surface of the housing 100A.
  • the back panel 104 is arranged so as to extend upward from the edges of the back side and the right side surface of the bottom plate 1.
  • the back panel 104 is a sheet metal that constitutes a part of the right side surface and the back surface of the housing 100A. The other part of the back surface of the housing 100A is not covered, and the outdoor heat exchanger 108 is exposed.
  • the top panel 105 is a sheet metal that is placed on the upper ends of the front panel 102, the side panel 103, and the back panel 104 and constitutes the upper surface of the housing 100A.
  • FIG. 3 is a schematic perspective view of the inside of the outdoor unit 100 according to the first embodiment as viewed from the front right.
  • the outdoor unit 100 includes a compressor 107, an outdoor heat exchanger 108, an outdoor blower 109, a partition plate 110, and a control box 112.
  • the compressor 107 is mounted on the bottom plate 1.
  • the compressor 107 compresses the sucked refrigerant into a high-temperature and high-pressure gas refrigerant and discharges it.
  • the compressor 107 may be a rotary type or a scroll type compressor.
  • the outdoor heat exchanger 108 is mounted on the bottom plate 1.
  • the outdoor heat exchanger 108 is formed, for example, in an L shape in a plan view.
  • the outdoor heat exchanger 108 constitutes a part of the back surface of the housing 100A.
  • the outdoor heat exchanger 108 is one of the elements constituting the refrigeration cycle, exchanges heat between the refrigerant flowing inside and the outside air, functions as an evaporator during the heating operation, and is a condenser during the cooling operation. Functions as.
  • the outdoor heat exchanger 108 can be configured as, for example, a fin-and-tube heat exchanger. Refrigerant is circulating inside the outdoor heat exchanger 108. The refrigerant exchanges heat with the air outside the outdoor heat exchanger 108.
  • the outdoor blower 109 is provided between the front panel 102 and the outdoor heat exchanger 108.
  • the outdoor blower 109 is rotationally driven by a motor (not shown) to generate an air flow inside the housing 100A.
  • the outdoor blower 109 sucks air from the back side of the outdoor unit 100 by rotationally driving it, and sends the sucked air to the outdoor heat exchanger 108.
  • the partition plate 110 is a sheet metal extending in the front-rear direction of the housing 100A and arranged on the upper part of the bottom plate 1.
  • the partition plate 110 divides the housing 100A into a blower room 200 and a machine room 300.
  • the blower room 200 is provided with an outdoor heat exchanger 108 and an outdoor blower 109
  • the machine room 300 is provided with a compressor 107 and a control box 112.
  • the control box 112 controls the operation of the outdoor unit 100.
  • the compressor 107 and the outdoor heat exchanger 108 form a refrigeration cycle together with the indoor unit connected to the outdoor unit 100 by an extension pipe.
  • the extension piping and the indoor unit are not shown.
  • the gas refrigerant compressed by the compressor 107 to a high temperature and high pressure exchanges heat with the air passing through the outside in the outdoor heat exchanger 108 to become a high-pressure liquid refrigerant from the outdoor heat exchanger 108. leak.
  • the high-pressure liquid refrigerant flowing out of the outdoor heat exchanger 108 is decompressed by the expansion valve, flows out from the outdoor unit 100 through the extension pipe, exchanges heat with the indoor air in the indoor unit, and then flows into the outdoor unit 100 again. Is sucked into the compressor 107.
  • the gas refrigerant compressed by the compressor 107 to have a high temperature and high pressure flows into the indoor unit from the outdoor unit 100 through an extension pipe and exchanges heat with the indoor air to become a high-pressure liquid refrigerant.
  • the high-pressure liquid refrigerant flows from the indoor unit through the extension pipe to the outdoor unit 100 again, and is decompressed to become a low-pressure gas-liquid two-phase refrigerant.
  • the low-pressure gas-liquid two-phase refrigerant exchanges heat with the outdoor air in the outdoor heat exchanger 108, becomes a low-temperature and low-pressure gas refrigerant, and is sucked into the compressor 107 again.
  • FIG. 4 is a schematic perspective view of the bottom plate 1 according to the first embodiment as viewed from the front right.
  • FIG. 5 is an enlarged perspective view of the bottom plate 1 according to the first embodiment.
  • the bottom plate 1 has a bottom surface 12 and a wall surface 14 extending upward from the peripheral edge of the bottom surface 12.
  • a first drain hole 11 is formed on the bottom surface 12 of the bottom plate 1.
  • the bottom surface 12 of the bottom plate 1 has a height difference in the vertical direction, and a portion recessed downward is a drain groove 12a.
  • the first drain hole 11 is a hole through which drain water or rainwater is discharged.
  • the drain water is generated by the outdoor heat exchanger 108 placed on the upper part of the bottom plate 1. Rainwater invades the blower room 200 of the outdoor unit 100.
  • the first drainage hole 11 is formed from the bottom surface 12 to the wall surface 14. Specifically, as shown in FIG. 5, the first drainage hole 11 is a hole composed of a bottom surface opening 11a formed on the bottom surface 12 and a wall surface opening 11b formed on the wall surface 14.
  • the bottom opening 11a of the first drain hole 11 is formed in the drain groove 12a of the bottom 12.
  • the wall surface opening 11b of the first drainage hole 11 has a shape extending upward from the portion where the bottom surface 12 and the wall surface 14 are connected.
  • the drain groove 12a collects the drain water or rainwater dropped on the bottom surface 12 and guides it to the first drain hole 11.
  • the position where the bottom opening 11a of the first drainage hole 11 is formed is the position where the height in the horizontal direction is the lowest in the bottom plate 1. Since the first drain hole 11 is located at the lowest height portion of the bottom plate 1, all the water is drained.
  • the full position of the water stored in the bottom plate 1 can be determined as compared with the case where the drainage hole 11 is formed only on the wall surface 14. It becomes low and it is difficult for water to stay on the bottom plate 1. This makes it possible to improve the drainage performance of water from the bottom plate 1, prevent corrosion due to the accumulation of water in the bottom plate 1 more effectively, and improve the freezing resistance in the heating operation at low outside air temperature.
  • the first drainage hole 11 is formed, for example, in the center in the left-right direction of the wall surface 14 on the back surface side.
  • a plurality of engaging holes 1a are formed in the bottom plate 1.
  • the plurality of engaging holes 1a are holes for attaching the drain base 7 to the bottom plate 1.
  • the drain base 7 will be described later.
  • two engaging holes 1a are formed on the bottom surface 12 and two on the wall surface 14.
  • the plurality of engaging holes 1a are formed at positions adjacent to the first drainage hole 11.
  • FIG. 6 is a perspective view illustrating a connection configuration of the drain hose 9 according to the first embodiment. As shown in FIG. 6, a drain hose 9 is connected to the bottom plate 1 via a drain base 7 and a socket 8.
  • the drain base 7 is attached to the back side of the outdoor unit 100.
  • the socket 8 connects the drain base 7 and the drain hose 9.
  • the water stored in the bottom plate 1 is guided to the drain base 7 and discharged from the socket 8 to the outside of the machine, and is treated by the drain hose 9 attached to the socket 8.
  • the installation work of the outdoor unit 100 is limited to the case where the installation work of the outdoor unit 100 is performed from the back side of the outdoor unit 100. If the drain base 7 to which the socket 8 is connected is provided on the back side of the outdoor unit 100, the drain hose 9 can be easily attached even in such a special installation environment. be able to.
  • FIG. 7 is a schematic perspective view of the drain base 7 according to the first embodiment.
  • FIG. 8 is a schematic perspective view showing a state in which the drain base 7 according to the first embodiment is attached to the bottom plate 1.
  • the drain base 7 has a guide surface 71 extending in the horizontal direction and a rising surface 72 extending upward, and is an L-shaped member in a side view.
  • the drain base 7 is arranged so that the guide surface 71 is arranged along the bottom surface 12 of the bottom plate 1 and the rising surface 72 is arranged along the side surface of the housing 100A in a state of being fixed to the bottom plate 1.
  • the rising surface 72 is configured along the side surface of the housing 100A, and the rising surface 72 is illustrated along the wall surface 14 of the bottom plate 1.
  • the drain base 7 closes the first drain hole 11 of the bottom plate 1 from below the bottom plate 1.
  • the drain base 7 is resin-molded.
  • the guide surface 71 is a surface that covers the first drainage hole 11 of the bottom plate 1 from below the bottom plate 1 and receives the water flowing out from the first drainage hole 11 of the bottom plate 1.
  • the guide surface 71 extends from below the position where the bottom opening 11a of the first drain hole 11 is formed to the edge on the back surface side of the bottom surface 12 in a state where the drain base 7 is fixed to the bottom plate 1. ..
  • the guide surface 71 covers the first drainage hole 11 that opens in the bottom surface 12, and has a larger area than the area thereof.
  • the guide surface 71 has a dish shape. Therefore, the structure is such that the water flowing from the bottom opening 11a of the first drain hole 11 of the bottom plate 1 does not leak from between the drain base 7 and the bottom plate 1.
  • the guide surface 71 may be in close contact with the bottom surface 12 at the edge portion.
  • the guide surface 71 is connected to the rising surface 72 at the end extending below the wall surface 14.
  • the rising surface 72 is a surface extending upward from the end of the guide surface 71 along the wall surface 14 of the bottom plate 1 in a state where the drain base 7 is fixed to the bottom plate 1.
  • a circular second drainage hole 72a is formed on the rising surface 72.
  • a cylindrical fitting portion 73 protrudes from the peripheral edge of the second drain hole 72a.
  • the fitting portion 73 protrudes from the rising surface 72 in a state where the drain base 7 is fixed to the bottom plate 1.
  • the fitting portion 73 projects in a direction away from the rising surface 72.
  • the fitting portion 73 is a portion to which the socket 8 is attached.
  • the water dropped from the first drainage hole 11 of the bottom plate 1 is guided by the guide surface 71 of the drain base 7 and moves toward the second drainage hole 72a of the rising surface 72.
  • the portion of the second drainage hole 72a having the lowest height position is flush with the guide surface 71. Therefore, the water does not stay on the guide surface 71 and is discharged from the second drain hole 72a to the fitting portion 73.
  • a rubber O-ring 73a is attached to the outer periphery of the tip of the fitting portion 73. As a result, the socket 8 attached to the drain base 7 comes into close contact with the fitting portion 73. Therefore, it is possible to prevent the socket 8 from moving unintentionally.
  • a plurality of engaging protrusions 7a are formed on the drain base 7.
  • the plurality of engaging protrusions 7a are engaged with the plurality of engaging holes 1a formed in the bottom plate 1 when the drain base 7 is fixed to the bottom plate 1.
  • two engaging protrusions 7a are formed on the guide surface 71 and two on the rising surface 72.
  • the tips of the plurality of engaging protrusions 7a are formed in a hook shape, for example.
  • FIG. 9 is a schematic perspective view of the socket 8 according to the first embodiment.
  • FIG. 10 is a plan view of the socket 8 according to the first embodiment.
  • the socket 8 has a cylindrical first connection portion 81 and a cylindrical second connection portion 82, and is L-shaped by the first connection portion 81 and the second connection portion 82. It has become.
  • the socket 8 is for connecting the drain hose 9 to the drain base 7.
  • One end 81a on the short side of the socket 8 is attached to a fitting portion 73 provided on the rising surface 72 of the drain base 7, and the drain hose 9 is attached to the other end 82a on the long side of the socket 8.
  • the axial direction A1 of the first connecting portion 81 projects in a direction intersecting the rising surface 72 of the drain base 7, and the axial direction A2 of the second connecting portion 82 drains. It extends in the direction along the rising surface 72 of the base 7.
  • the angle between the axial direction A1 of the first connecting portion 81 and the axial direction A2 of the second connecting portion 82 is, for example, 90 degrees.
  • the inside of the first connection portion 81 and the inside of the second connection portion 82 are in communication with each other, and the water discharged from the drain base 7 flows in from the first connection portion 81 and is discharged from the second connection portion 82.
  • One end 81a of the socket 8 is open to the first connection portion 81.
  • One end 81a of the socket 8 is arranged coaxially with the fitting portion 73 of the drain base 7, and is attached to the drain base 7.
  • the socket 8 communicates with the second drain hole 72a by covering the fitting portion 73 of the drain base 7 with one end 81a in a state of being attached to the fitting portion 73 of the drain base 7.
  • the socket 8 is rotatably connected to the drain base 7 in a state of being attached to the fitting portion 73 of the drain base 7.
  • a ridge portion 84 protruding from the outer peripheral surface may be formed on the outer peripheral surface of the first connection portion 81 of the socket 8. The ridge portion 84 will be described later.
  • a rubber O-ring 73a is attached to the fitting portion 73 of the drain base 7. Therefore, when the first connection portion 81 of the socket 8 is attached to the fitting portion 73 of the drain base 7, there is no gap between the first connection portion 81 and the fitting portion 73 of the drain base 7. Therefore, the water flowing from the drain base 7 to the socket 8 is prevented from leaking from the gap between the fitting portion 73 of the drain base 7 and the first connection portion 81 of the socket 8.
  • the other end 82a of the socket 8 is open to the second connection portion 82.
  • a drain hose 9 is fitted and attached to the other end 82a of the socket 8.
  • the inside of the socket 8 communicates with the inside of the drain hose 9 in a state where the drain hose 9 is attached to the other end 82a.
  • the other end 82a of the socket 8 is covered with the end portion of the drain hose 9 in a state where the drain hose 9 is attached.
  • the outer diameter of the second connecting portion 82 is larger than the inner diameter of the drain hose 9. This prevents the drain hose 9 from easily falling off from the second connecting portion 82.
  • the second connecting portion 82 has a plurality of grooves 82b extending in the circumferential direction on the outer peripheral surface.
  • the drain hose 9 made of a soft material bites into the plurality of grooves 82b, and the drain hose 9 easily falls off from the second connecting portion 82. Is prevented.
  • FIG. 11 is a diagram showing a state in which the socket 8 is attached to the drain base 7 according to the first embodiment. As shown in FIG. 11, the socket 8 has a configuration in which the second connecting portion 82 rotates about the first connecting portion 81 along the arrow ⁇ .
  • the socket 8 Since one end 81a of the socket 8 is coaxially attached to the cylindrical fitting portion 73 of the drain base 7, the socket 8 is rotatable with respect to the drain base 7. As a result, in the drainage path, the drain hose 9 can be routed in either the lower right or lower right direction of the outdoor unit 100 according to the installation environment, and the degree of freedom in the routing direction of the drain hose 9 is improved.
  • the fitting portion 73 of the drain base 7 and the first connection portion 81 of the socket 8 are fitted and connected, so that the water flowing out from the fitting portion 73 of the drain base 7 is second-connected. It can flow to the drain hose 9 via the portion 82.
  • FIG. 12 is a cross-sectional view illustrating the positional relationship between the guide surface 71 of the drain base 7 and the socket 8 according to the first embodiment.
  • FIG. 12 shows a cross section along line AA of FIG.
  • the guide surface 71 and the lowest position of the second drainage hole 72a are flush with each other.
  • the lowest position of the first connection portion 81 of the socket 8 is lower than the lowest position of the second drain hole 72a or the same height as the lowest position of the second drain hole 72a. Therefore, the water guided by the guide surface 71 can reach the first connection portion 81 without stagnation.
  • the socket 8 has an L-shape formed by the first connection portion 81 and the second connection portion 82. Therefore, with the drain hose 9 connected to the outdoor unit 100, the drain hose 9 does not protrude in the direction away from the outdoor unit 100 and extends along the back surface of the outdoor unit 100. As a result, the depth size of the entire outdoor unit 100 when the drain hose 9 is connected to the outdoor unit 100 is limited, and the installation space of the outdoor unit 100 is improved.
  • the water is discharged from the second connection portion 82 toward the drain hose 9 attached to the second connection portion 82.
  • any side of the housing 100A of the outdoor unit 100 such as a configuration in which the drain base 7 is attached to the front surface or the side surface of the outdoor unit 100, is described. It can be applied even if it is mounted on the side.
  • the first drainage hole 11 formed by the bottom surface opening 11a and the wall surface opening 11b is covered with the drain base 7 is described.
  • the first drainage hole 11 may be formed only on the bottom surface 12, and in this case, the drain base 7 may be configured to cover the first drainage hole 11 provided only on the bottom surface 12.
  • the configuration in which one end 81a of the socket 8 covers the fitting portion 73 of the drain base 7 is described, but the one end 81a of the socket 8 is covered by the fitting portion 73 of the drain base 7. There may be.
  • the configuration in which the other end 82a of the socket 8 is covered with the end portion of the drain hose 9 is described.
  • the other end 82a of the socket 8 is not limited to this configuration as long as the drain hose 9 can be prevented from falling off, and may be configured to cover the end portion of the drain hose 9.
  • the second drain hole 72a formed on the rising surface 72 of the drain base 7 extending along the back surface of the housing 100A and the drain hose 9 are sockets 8. Is connected by.
  • the socket 8 is rotatably attached to the drain base 7. Therefore, in a configuration in which the water stored in the bottom plate 1 is discharged from the back surface side of the outdoor unit 100, the degree of freedom in the handling direction of the drain hose 9 can be improved. As a result, even in a special installation environment where the installation work of the outdoor unit 100 is limited to the rear side of the outdoor unit 100, such as when the outdoor unit 100 is installed close to the window, the drain hose The installation work of 9 becomes easy.
  • the drain base 7 is configured to engage with the engaging hole 1a of the bottom plate 1 from the outside of the housing 100A. Therefore, it can be assembled as needed at the site where the outdoor unit 100 is installed, and it is not necessary to assemble it in advance to the outdoor unit 100, so that the packing volume for accommodating the outdoor unit 100 can be reduced. ..
  • the first drainage hole 11 is formed at a position where the height in the horizontal direction is the lowest in the bottom plate 1, the water stored in the bottom plate 1 easily collects in the first drainage hole 11, and the water is easily collected from the bottom plate 1. Drainage can be improved.
  • the first drainage hole 11 is composed of the bottom surface opening 11a and the wall surface opening 11b and is formed so as to extend from the bottom surface 12 to the wall surface 14, it becomes difficult for water to be held by the bottom plate 1.
  • the hole for drainage is formed only on the wall surface 14, the full position of the water stored in the bottom plate 1 rises, and the water generated on the surface of the outdoor heat exchanger 108 during the heating operation is outdoors. It may accumulate inside the machine 100 and corrode the bottom plate 1 which is a sheet metal part.
  • the first drainage hole 11 With the bottom surface opening 11a and the wall surface opening 11b, the drainage performance of the bottom plate 1 is improved, corrosion due to the accumulation of water in the bottom plate 1 is more effectively prevented, and the temperature is low. It is possible to improve the freezing resistance in the heating operation of.
  • Embodiment 2 In the second embodiment, the configurations of the drain base 7 and the socket 8 are different from those in the first embodiment. Since other configurations are the same as those in the first embodiment, the description thereof is omitted, and the same or corresponding parts are designated by the same reference numerals.
  • FIGS. 13 (a) to 13 (c) are three views showing the drain base 7 according to the second embodiment.
  • the drain base 7 has a protrusion 74.
  • the protrusion 74 is formed on the rising surface 72 of the drain base 7.
  • the protrusion 74 is provided above the fitting portion 73.
  • the protrusion 74 protrudes from the same surface as the surface on which the fitting portion 73 is provided.
  • a hook 75 may be formed at the tip of the protrusion 74.
  • FIG. 14 is a schematic view of the socket 8 according to the second embodiment as viewed from one end 81a side of the socket 8 in the axial direction A1 of the first connection portion 81.
  • FIG. 15 is a schematic view of the socket 8 according to the second embodiment.
  • FIG. 15 is a view of the socket 8 of FIG. 14 as viewed from the bottom to the top of the paper.
  • the socket 8 has a pair of steps 83 arranged at positions 180 ° apart from each other on the circumference of one end 81a.
  • the pair of steps 83 is composed of an upper step 83a and a lower step 83b.
  • the step 83 is formed by the difference between the dimension on the short side of the socket 8 in the upper stage 83a and the dimension on the short side of the socket 8 in the lower stage 83b.
  • the upper 83a is a portion where one end 81a of the socket 8 protrudes from the lower 83b.
  • the pair of steps 83 are arranged at positions 180 ° apart from each other, for example, on the circumference of one end 81a of the socket 8.
  • the upper stage 83a and the lower stage 83b have an arc shape when the first connection portion 81 of the socket 8 is viewed in the axial direction A1.
  • the upper stage 83a is provided in a range of 0 ° or more and less than 180 ° on the circumference of one end 81a of the socket 8.
  • the range of 180 ° or more and less than 360 ° on the circumference of one end 81a of the socket 8 is the lower stage 83b.
  • a ridge portion 84 protruding from the outer peripheral surface may be formed on the outer peripheral surface of the first connection portion 81 of the socket 8.
  • the ridge portion 84 is formed in the circumferential direction of the first connection portion 81.
  • the ridge portion 84 of the socket 8 is a portion where the hook 75 of the drain base 7 engages when the socket 8 is attached to the drain base 7.
  • FIG. 16 is a perspective view showing a state in which the socket 8 according to the second embodiment is attached to the drain base 7.
  • FIG. 17 is a schematic view showing a movable range of the socket 8 according to the second embodiment.
  • the socket 8 has a configuration in which the second connecting portion 82 rotates about the first connecting portion 81 attached to the drain base 7. As shown in FIGS. 16 and 17, when the second connecting portion 82 was rotated in the + ⁇ direction, one of the pair of steps 83 formed in the first connecting portion 81 was formed in the drain base 7. It abuts on the protrusion 74. When the second connecting portion 82 is rotated in the ⁇ direction, the other of the pair of steps 83 formed on the first connecting portion 81 abuts on the protrusion 74 formed on the drain base 7. When any one of the pair of steps 83 abuts on the protrusion 74, the socket 8 is restricted from rotating the second connecting portion 82 and cannot rotate any more. In this way, the rotation of the second connecting portion 82 is restricted to a certain angle.
  • the axial direction A2 of the second connecting portion 82 is inclined downward from the position where it is connected to the first connecting portion 81.
  • the other end 82a of the socket 8 is located below one end 81a of the socket 8 in the horizontal direction at a certain angle at which the rotation of the second connecting portion 82 is restricted.
  • a pair of steps 83 arranged 180 ° apart from each other on the circumference of one end 81a of the socket 8 becomes a stopper for the socket 8 when one of them abuts on the protrusion 74 of the drain base 7. , The rotation angle of the socket 8 is restricted.
  • the socket 8 can rotate 360 °, so that the drain hose 9 may be tilted in the opposite direction to the direction in which water is discharged from the socket 8. There is. If the drain hose 9 is tilted in the opposite direction, water will collect inside the drain hose 9 or in the bottom plate 1 of the outdoor unit 100. This can lead to water leaking from unintended locations, resulting in customer complaints.
  • the rotation angle of the socket 8 is restricted by the pair of steps 83 of the socket 8 and the protrusion 74 of the socket 8, so that the other end 82a of the socket 8 is located below the one end 81a of the socket 8 in the horizontal direction. It becomes. As a result, it is possible to prevent the water flowing from one end 81a of the socket 8 from flowing toward the other end 82a of the socket 8 and the water from flowing back from the drain hose 9 connected to the second connection portion 82 of the socket 8. can.
  • FIG. 18 is a schematic diagram showing an arrangement when the socket 8 is attached to the drain base 7 according to the second embodiment.
  • the first connection portion 81 of the socket 8 is arranged coaxially with the fitting portion 73 of the drain base 7. Then, the first connection portion 81 of the socket 8 is fitted to the fitting portion 73 of the drain base 7, and the socket 8 is attached to the drain base 7. Further, in this state, the hook 75 of the drain base 7 is caught and engaged with the protrusion 84 of the socket 8.
  • the socket 8 does not come off from the drain base 7 even if a slight force is applied to the socket 8, and the positional relationship between the protrusion 74 of the drain base 7 and the step 83 of the drain base 7 can be maintained.
  • the position and range of providing the protrusion 74 of the drain base 7 and the step 83 of the socket 8 are such that the rotation angle of the socket 8 is such that the other end 82a of the socket 8 is located below the one end 81a of the socket 8 in the horizontal direction. It suffices if it is set so that it can be regulated to.
  • the drain base 7 may be provided with the protrusion 74 and the socket 8 is provided with the step 83 .
  • the drain base 7 may be provided with the step and the socket 8 may be provided with the protrusion.
  • the rotation angle of the socket 8 is limited by the pair of steps 83 formed at one end 81a abuting on the protrusions 74 formed on the drain base 7. To. By limiting the rotation angle of the socket 8, the drain hose 9 is not located above the socket 8, and the reverse inclination of the drain hose 9 can be prevented.
  • Embodiment 3 the configuration of the socket 8 is different from that of the first embodiment. Since other configurations are the same as those in the first embodiment, the description thereof is omitted, and the same or corresponding parts are designated by the same reference numerals.
  • the socket 80 has an L shape in which the angle ⁇ between the axial direction A1 of the first connecting portion 81 and the axial direction A2 of the second connecting portion 82 is larger than 90 degrees. It is in the shape.
  • the angle ⁇ between the axial direction A1 of the first connecting portion 81 and the axial direction A2 of the second connecting portion 82 is an obtuse angle.
  • a ridge portion 84 protruding from the outer peripheral surface may be formed on the outer peripheral surface of the first connection portion 81 of the socket 8.
  • FIG. 20 is a top view showing a state in which the socket 80 according to the third embodiment is attached to the outdoor unit 100.
  • the first connection portion 81 is attached to the back surface of the housing 100A, and the drain hose 9 is connected to the second connection portion 82.
  • the housing 100A of the outdoor unit 100 is fixed to the ground on which the outdoor unit 100 is installed by the legs 10 protruding outward from the front surface and the back surface.
  • the first connection portion 81 projects in a direction orthogonal to the back surface of the housing 100A, and the second connection portion 82 extends in a bent direction so as to have an obtuse angle with the first connection portion 81.
  • the second connection portion 82 extends in a direction away from the back surface of the housing 100A as the distance from the first connection portion 81 increases, and the drain hose 9 is connected to the second connection portion 82.
  • the second connection portion 82 of the socket 80 is bent at a right angle to the first connection portion 81.
  • the drain hose 9 extends along the front surface or the back surface of the housing 100A.
  • the drain hose 9 since the leg portion 10 is on the path of the drain hose 9, the drain hose 9 needs to avoid the leg portion 10. Therefore, the drain hose 9 must pass over the leg portion 10. Then, the drain hose 9 may be lifted upward and inclined in the direction opposite to the flow direction of the water flowing through the drain hose 9, and the water is not discharged from the drain hose 9 and stays in the bottom plate 1.
  • the drain hose 9 connected to the second connecting portion 82 of the socket 80 is the outdoor unit 100. It extends away from the back. As a result, the direction in which the drain hose 9 extends is restricted to follow the path extending in the direction avoiding the leg portion 10, so that the backflow and retention of water are prevented while limiting the dimension in the depth direction of the housing 100A. be able to.
  • the angle ⁇ between the first connection portion 81 of the socket 8 and the second connection portion 82 is an obtuse angle, and the socket 8 is connected to the second connection portion 82.
  • the drain hose 9 extends in a direction away from the outdoor unit 100. Therefore, it is possible to prevent the drain hose 9 from tilting backward while preventing the drain hose 9 from coming into contact with the leg portion 10 protruding from the outdoor unit 100.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Devices For Blowing Cold Air, Devices For Blowing Warm Air, And Means For Preventing Water Condensation In Air Conditioning Units (AREA)
  • Other Air-Conditioning Systems (AREA)
PCT/JP2020/029950 2020-08-05 2020-08-05 室外機 WO2022029913A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2022541397A JPWO2022029913A1 (enrdf_load_stackoverflow) 2020-08-05 2020-08-05
CN202080101166.6A CN117280161A (zh) 2020-08-05 2020-08-05 室外机
PCT/JP2020/029950 WO2022029913A1 (ja) 2020-08-05 2020-08-05 室外機

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2020/029950 WO2022029913A1 (ja) 2020-08-05 2020-08-05 室外機

Publications (1)

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WO2022029913A1 true WO2022029913A1 (ja) 2022-02-10

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JP (1) JPWO2022029913A1 (enrdf_load_stackoverflow)
CN (1) CN117280161A (enrdf_load_stackoverflow)
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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS515788Y1 (enrdf_load_stackoverflow) * 1967-11-17 1976-02-18
JP3209047U (ja) * 2016-12-09 2017-03-02 フソー化成株式会社 ドレンコレクト
CN206449762U (zh) * 2016-12-15 2017-08-29 珠海格力电器股份有限公司 空调装置及其空调室外机底盘排水结构
WO2018025356A1 (ja) * 2016-08-03 2018-02-08 三菱電機株式会社 ドレンパンおよび冷凍サイクル装置

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06331179A (ja) * 1993-05-24 1994-11-29 Mitsubishi Heavy Ind Ltd 空気調和機の室外ユニット
JP4761894B2 (ja) * 2005-08-29 2011-08-31 三菱電機株式会社 ヒートポンプ式給湯機用熱交換ユニットのドレン排水装置
JP2015169388A (ja) * 2014-03-07 2015-09-28 三菱重工業株式会社 一体型空気調和機

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS515788Y1 (enrdf_load_stackoverflow) * 1967-11-17 1976-02-18
WO2018025356A1 (ja) * 2016-08-03 2018-02-08 三菱電機株式会社 ドレンパンおよび冷凍サイクル装置
JP3209047U (ja) * 2016-12-09 2017-03-02 フソー化成株式会社 ドレンコレクト
CN206449762U (zh) * 2016-12-15 2017-08-29 珠海格力电器股份有限公司 空调装置及其空调室外机底盘排水结构

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CN117280161A (zh) 2023-12-22

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