US20170314794A1 - Outdoor unit - Google Patents

Outdoor unit Download PDF

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Publication number
US20170314794A1
US20170314794A1 US15/520,664 US201415520664A US2017314794A1 US 20170314794 A1 US20170314794 A1 US 20170314794A1 US 201415520664 A US201415520664 A US 201415520664A US 2017314794 A1 US2017314794 A1 US 2017314794A1
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United States
Prior art keywords
panel
outdoor unit
disposed
side panel
heat exchanger
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US15/520,664
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English (en)
Inventor
Hiroshi IWAZAKI
Toshiyuki KUBONO
Tomoya YANASE
Hiroyuki JINNAI
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Mitsubishi Electric Corp
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Mitsubishi Electric Corp
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Filing date
Publication date
Application filed by Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Assigned to MITSUBISHI ELECTRIC CORPORATION reassignment MITSUBISHI ELECTRIC CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: IWAZAKI, HIROSHI, JINNAI, HIROYUKI, KUBONO, TOSHIYUKI, Yanase, Tomoya
Publication of US20170314794A1 publication Critical patent/US20170314794A1/en
Abandoned legal-status Critical Current

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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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • F24F1/14—Heat exchangers specially adapted for separate outdoor units

Definitions

  • the present invention relates to an outdoor unit of a refrigeration cycle apparatus.
  • an outdoor unit of refrigeration cycle apparatus such as air-conditioning apparatus has a casing that accommodates, for example, a compressor, a heat exchanger, a blower and the like.
  • the outdoor unit of air-conditioning apparatus is connected via a refrigerant pipe to an indoor unit that accommodates a heat exchanger, a blower and the like.
  • the blower When the blower is actuated, outside air is supplied to the heat exchanger so that heat is exchanged between air and refrigerant which flows in the heat exchanger.
  • the capability of the refrigeration cycle apparatus such as heating and cooling depends on the amount of heat exchange between air and refrigerant. That is, the larger the size of heat exchanger is, the larger heating capacity and cooling capacity can be obtained.
  • the outdoor unit has a rectangular shaped bottom panel and the heat exchanger is disposed, for example, to extend in a long side direction of the bottom panel. This allows a large sized heat exchanger to be accommodated in the casing of the outdoor unit.
  • Patent Literature 1 Japanese Unexamined Patent Application Publication No. 5-133571
  • the outdoor unit of air-conditioning apparatus is installed outside the building.
  • the outdoor unit is installed in an apartment building
  • the outdoor unit is installed in a balcony.
  • an installation space in a balcony of an apartment building is relatively small and is often limited. Accordingly, besides the indoor unit which is installed inside the building, the outdoor unit which is installed outside the building is also required to be reduced in size.
  • the present invention has been made to overcome the above problem, and an object of the invention is to provide an outdoor unit capable of housing a larger heat exchanger (outdoor heat exchanger) while preventing increasing in size of the outdoor unit.
  • an outdoor unit accommodating a compressor and connected to a refrigerant pipe used for circulating refrigerant between an indoor unit and the outdoor unit, the outdoor unit comprising: a bottom panel disposed under the compressor to support the compressor; a first side panel disposed on a peripheral edge of the bottom panel; a second side panel disposed at a position facing the first side panel on the peripheral edge of the bottom panel; and an outdoor heat exchanger supported above the bottom panel and extending in a direction from the first side panel toward the second side panel, wherein the outdoor heat exchanger has an end portion facing one of side end portions of the second side panel, and the bottom panel includes a projection formed at a position corresponding to the end portion of the outdoor heat exchanger, the projection protruding in the direction from the first side panel toward the second side panel.
  • a larger heat exchanger (outdoor heat exchanger) can be used while preventing increasing in size of the outdoor unit.
  • FIG. 1 is a schematic view of a refrigeration cycle apparatus having an outdoor unit according to Embodiment of the present invention.
  • FIG. 2 is a schematic view which shows a configuration of the outdoor unit according to Embodiment of the present invention.
  • FIG. 3 is an explanatory view of a casing of the outdoor unit according to Embodiment of the present invention.
  • FIG. 4 is a top view of a bottom panel of the outdoor unit according to Embodiment of the present invention.
  • FIG. 5A is an explanatory view of and around a valve of the outdoor unit according to Embodiment of the present invention.
  • FIG. 5B is an explanatory view which shows a bottom panel, a fixed panel, a valve, a refrigerant pipe and a cover of the outdoor unit according to Embodiment of the present invention.
  • FIG. 5C is an explanatory view of a state in which the cover of FIG. 5B is removed.
  • FIG. 6 is a modified example 1 of the outdoor unit according to Embodiment of the present invention.
  • FIG. 7A is a modified example 2 of the outdoor unit according to Embodiment of the present invention.
  • FIG. 7B is a modified example 3 of the outdoor unit according to Embodiment of the present invention.
  • FIG. 7C is a modified example 4 of the outdoor unit according to Embodiment of the present invention.
  • FIG. 7D is a modified example 5 of the outdoor unit according to Embodiment of the present invention.
  • FIG. 7E is a modified example 6 of the outdoor unit according to Embodiment of the present invention.
  • FIG. 8 is a schematic view of a horizontal cross section of the outdoor unit of a conventional air-conditioning apparatus.
  • FIG. 1 is a schematic view of an air-conditioning apparatus 200 having an outdoor unit 100 according to Embodiment.
  • FIG. 1( a ) is an example of a refrigerant circuit configuration of the air-conditioning apparatus 200
  • FIG. 1( b ) shows that the outdoor unit 100 and an indoor unit 150 are connected via a refrigerant pipe P.
  • the following Embodiment shows an example in which a refrigeration cycle apparatus is the air-conditioning apparatus 200 .
  • the air-conditioning apparatus 200 includes the indoor unit 150 and the outdoor unit 100 which are connected via the refrigerant pipe P.
  • the indoor unit 150 includes an indoor heat exchanger 151 which serves as an evaporator during cooling operation and a condenser during heating operation. Cooling energy or heating energy is generated in the outdoor unit 100 and is delivered to the indoor unit 150 via the refrigerant pipe P.
  • the outdoor unit 100 is disposed, for example, outside of a building, an apartment house or an individual house, and supplies cooling energy or heating energy to the indoor unit 150 via the refrigerant pipe P.
  • the outdoor unit 100 includes a compressor 4 that compresses refrigerant, a four-way valve 8 that switches flow passages, an expansion device 9 that reduces the pressure of refrigerant, an outdoor heat exchanger 2 that exchanges heat between air and refrigerant and a blower 3 that supplies air to the outdoor heat exchanger 2 .
  • the indoor unit 150 is installed at a position suitable for supplying cooling air or heating air into a space to be air-conditioned, for example, in a room, and supplies cooling air or heating air into the air-conditioned space.
  • the indoor unit 150 includes the indoor heat exchanger 151 that exchanges heat between air and refrigerant, and a blower 152 that supplies air to the indoor heat exchanger 151 .
  • the indoor heat exchanger 151 exchanges heat between room air which is suctioned by the blower 152 into the indoor unit 150 and refrigerant so that refrigerant is condensed and liquefied during heating operation and refrigerant is evaporated and gasified during cooling operation.
  • the four-way valve 8 switches a flow of refrigerant during heating operation and a flow of refrigerant during cooling operation and defrost operation. During heating operation, the four-way valve 8 allows a discharge side of the compressor 4 to communicate with the indoor heat exchanger 151 and allows a suction side of the compressor 4 to communicate with the outdoor heat exchanger 2 .
  • the four-way valve 8 allows the discharge side of the compressor 4 to communicate with the outdoor heat exchanger 2 and allows the suction side of the compressor 4 to communicate with the indoor heat exchanger 151 .
  • the expansion device 9 reduces the pressure of refrigerant which flows in the refrigerant circuit and allows the refrigerant to be expanded.
  • the expansion device 9 is connected to the outdoor heat exchanger 2 at one end and to the indoor heat exchanger 151 at the other end.
  • the expansion device 9 may be a device capable of variably controlling an opening degree such as an electronic expansion valve. Other configuration (such as the compressor 4 ) will be described later.
  • FIG. 1( a ) a refrigeration cycle operation of a refrigerant circuit shown in the figure will be described.
  • a flow of refrigerant during heating operation will be described.
  • the four-way valve 8 switches the flow passage as shown in FIG. 1( a ) .
  • Gas refrigerant which is compressed and discharge by the compressor 4 flows into the indoor heat exchanger 151 via the four-way valve 8 .
  • the gas refrigerant which flows into the indoor heat exchanger 151 exchanges heat with the room air supplied by the blower 152 and is condensed, and then flows out from the indoor heat exchanger 151 .
  • the refrigerant which flows out from the indoor heat exchanger 151 flows into the expansion device 9 , and is expanded and decompressed by the expansion device 9 .
  • the decompressed refrigerant flows into the outdoor heat exchanger 2 , and exchanges heat with outside air supplied by the blower 3 and is gasified, and then flows out from the outdoor heat exchanger 2 .
  • the gas refrigerant which flows out from the outdoor heat exchanger 2 is suctioned into the compressor 4 via the four-way valve 8 .
  • FIG. 2 is a schematic view which shows a configuration of an outdoor unit 100 according to Embodiment.
  • FIG. 3 is an explanatory view of a casing of the outdoor unit 100 according to Embodiment of the present invention.
  • FIG. 4 is a top view of a bottom panel 1 E of the outdoor unit 100 according to Embodiment.
  • FIG. 2( a ) is a perspective view of the outdoor unit 100
  • FIG. 2( b ) is a front view of the outdoor unit 100
  • FIG. 2( c ) is a cross sectional view of the outdoor unit.
  • FIG. 2 shows a state in which a cover 1 D is removed.
  • FIG. 3( a ) is a view of the outdoor unit 100 seen from the right side.
  • FIG. 3( b ) is a perspective view of the outdoor unit 100 with various components such as the outdoor heat exchanger 2 and the blower 3 having been removed from the casing.
  • the outdoor unit 100 includes the outdoor heat exchanger 2 which serves as a condenser during cooling operation and as an evaporator during heating operation.
  • the front panel 1 B is defined as a front surface (front side) of the outdoor unit, the side on which a first side panel 1 CC is located with respect to the front side is defined as left side, and the side on which a second side panel 1 C is located with respect to the front side is defined as right side.
  • the casing of the outdoor unit 100 includes a top panel 1 A that forms the top surface of the outdoor unit 100 , a front panel 1 B that forms the front surface of the outdoor unit 100 , a first side panel 1 CC that forms the left side surface of the outdoor unit 100 , a second side panel 1 C that forms the right side surface of the outdoor unit 100 , a fan grille 1 B 2 that is disposed on the front panel 1 B and forms part of the front surface of the outdoor unit 100 , and a bottom panel 1 E that forms the bottom of the outdoor unit 100 .
  • the first side panel 1 CC, the front panel 1 B and the second side panel 1 C correspond to a peripheral panel. That is, the peripheral panel is disposed on a peripheral edge 1 E 1 of the bottom panel 1 E and stands on the bottom panel 1 E.
  • the outdoor unit 100 includes a partition 5 that separates an inner space of the outdoor unit 100 into the right and left spaces, the compressor 4 that compresses and discharges refrigerant, the outdoor heat exchanger 2 that has an L-shaped horizontal cross section, the blower 3 that supplies outside air to the outdoor heat exchanger 2 , and a motor support 3 A that holds the blower 3 .
  • the outdoor unit 100 further includes the four-way valve 8 and an electric component box (not shown in the figure) that accommodates a controller that controls the rotation speed of the compressor 4 and the like.
  • the outdoor unit 100 further includes a fixed panel 1 F that is disposed at a corner C of the bottom panel 1 E so as to be located on the inner side of the peripheral panel and stands upright on the bottom panel 1 E, a roof panel 1 FF that is connected to the fixed panel 1 F, a valve 7 that is fixed to the fixed panel 1 F and is connected to the refrigerant pipe P, and a cover 1 D that is mounted to cover the valve 7 .
  • the top panel 1 A forms the top surface of the outdoor unit 100 .
  • the top panel 1 A is mounted on the upper end portion of the peripheral panel so as to cover the upper part of the outdoor heat exchanger 2 .
  • the top panel 1 A is in contact with the top panel 1 A at the front end portion and the left end portion, respectively, so as to be supported by the front panel 1 B and the first side panel 1 CC, and is in contact with the second side panel 1 C at the right end portion so as to be supported by the second side panel 1 C.
  • the top panel 1 A is formed of, for example, a metal plate.
  • the front panel 1 B forms part of the front surface of the outdoor unit 100 .
  • the first side panel 1 CC is disposed on the left end portion of the front panel 1 B, and the second side panel 1 C is disposed on the right end portion of the front panel 1 B. Further, the cover 1 D is attached on the right end portion of the front panel 1 B.
  • the first side panel 1 CC is integrally formed with the front panel 1 B.
  • the front panel 1 B has a lower end portion disposed on the peripheral edge 1 E 1 of the bottom panel 1 E, and an upper end portion disposed on the top panel 1 A. Further, the right end portion of a front surface-forming portion of the front panel 1 B extends along the front end portion of the second side panel 1 C. Moreover, the front panel 1 B has a circular opening 1 B 1 which serves, for example, as an inlet for outside air. The fan grille 1 B 2 is disposed so as to face a position of the opening 1 B 1 .
  • the front panel 1 B is formed of, for example, a metal plate.
  • the front panel 1 B has a front cutout portion 1 BH formed in the lower part on the end portion adjacent to the second side panel 1 C.
  • the cover 1 D is attached on the front cutout portion 1 BH.
  • the first side panel 1 CC is disposed on the peripheral edge 1 E 1 of the bottom panel 1 E.
  • the first side panel 1 CC is disposed on a portion which corresponds to one of short sides of the bottom panel 1 E.
  • the second side panel 1 C is disposed at a position facing the first side panel 1 CC.
  • the front end portion of the first side panel 1 CC extends along the left end portion of the front panel 1 B.
  • the first side panel 1 CC has a plurality of openings through which air is supplied to the outdoor heat exchanger 2 .
  • the second side panel 1 C forms part of the back surface and the right side surface of the outdoor unit 100 .
  • the second side panel 1 C has a substantially L-shaped horizontal cross section and stands vertically upright on the bottom panel 1 E, and is located on the lateral side and back side of the compressor 4 .
  • the second side panel 1 C has a front end portion which is in contact with the front panel 1 B, an upper end portion which is in contact with the top panel 1 A, and a lower end portion which is in contact with the bottom panel 1 E.
  • the second side panel 1 C is formed of, for example, a metal plate.
  • the second side panel 1 C is formed to extend along the peripheral edge 1 E 1 of the bottom panel 1 E, as described later, and has a tapered shape surface 1 CT. Since the refrigerant pipe P gradually curves when being routed along the tapered shape surface 1 CT, the refrigerant pipe P is prevented from being damaged.
  • the second side panel 1 C has a side cutout portion 1 CH formed in the lower part on the front end portion which is located adjacent to the front panel 1 B.
  • the cover 1 D is attached to the side cutout portion 1 CH.
  • the fan grille 1 B 2 forms part of the front surface of the outdoor unit 100 and is provided for preventing a user from being injured by the blower 3 .
  • the fan grille 1 B 2 is a grating member made up of, for example, vertical and lateral bars.
  • the bottom panel 1 E forms part of the bottom of the outdoor unit 100 .
  • the bottom panel 1 E is a rectangular shaped member that is disposed under the compressor 4 , the outdoor heat exchanger 2 and the like so as to support the compressor 4 and the outdoor heat exchanger 2 .
  • the bottom panel 1 E includes a corner C 2 (which corresponds to the first corner) that corresponds to a position at which a projection J is formed, and a corner C (which corresponds to the second corner) that corresponds to a position at which the valve 7 is disposed.
  • the vertically standing peripheral edge 1 E 1 is formed on the periphery of the bottom panel 1 E. That is, the peripheral edge 1 E 1 is a flange-like portion formed on the peripheral edge of the bottom panel 1 E.
  • the outdoor heat exchanger 2 , the compressor 4 , the partition 5 and the like are disposed on the bottom panel 1 E.
  • the bottom panel 1 E is formed of, for example, a metal plate.
  • the bottom panel 1 E includes a projection J that is formed on the peripheral edge 1 E 1 on which the second side panel 1 C is disposed, and protrudes in the horizontal direction.
  • the projection J is formed at a position corresponding to an end portion of the first heat exchange section 2 A of the outdoor heat exchanger 2 , and protrudes in the horizontal direction.
  • the projection J horizontally protrudes in a direction from the first side panel 1 CC toward the second side panel 1 C with respect to a position at which the valve 7 is located.
  • a tapered shape surface J 1 is formed on the edge of the projection J so as to extend toward a portion of bottom panel 1 E which is located under the valve 7 .
  • the second side panel 1 C is formed to correspond to the shape of the projection J of the bottom panel 1 E. That is, the second side panel 1 C is formed to extend along the edge of the projection J, and has a tapered shape surface parallel to the tapered shape surface J 1 .
  • the partition 5 is disposed to divide a space into an area in which the compressor 4 and the valve 7 are located and an area in which the outdoor heat exchanger 2 and the blower 3 are located. That is, the partition 5 separates a space into a machine chamber R 1 in which the compressor 4 , the valve 7 and the like are located and a blower chamber R 2 in which the outdoor heat exchanger 2 , blower 3 , motor support 3 A and the like are located.
  • the partition 5 is disposed, for example, on the bottom panel 1 E.
  • the front end portion of the partition 5 is disposed on the front panel 1 B and the back end portion is fixed to the end portion of the outdoor heat exchanger 2 .
  • the compressor 4 suctions refrigerant and then compresses the refrigerant into high temperature and high pressure state and discharges it.
  • the compressor 4 is connected via a pipe to the four-way valve 8 that switches cooling operation and heating operation by switching a flow of refrigerant.
  • the partition 5 , the front panel 1 B, the fixed panel 1 F and the like are disposed around the compressor 4 .
  • An electric component box (which is not shown in the figure) used for various controls is disposed above the compressor 4 .
  • the compressor 4 may not be necessarily directly disposed on the bottom panel 1 E, and may be placed on an installation table disposed on the bottom panel 1 E.
  • the outdoor heat exchanger 2 exchanges heat between air suctioned by the blower 3 into the outdoor unit 100 and refrigerant so that refrigerant is condensed and liquefied during cooling operation and refrigerant is evaporated and gasified during heating operation.
  • the outdoor heat exchanger 2 is disposed, for example, on the bottom panel 1 E.
  • the outdoor heat exchanger 2 may not be necessarily directly disposed on the bottom panel 1 E, and may be placed on an installation table disposed on the bottom panel 1 E.
  • the motor support 3 A is hung above the outdoor heat exchanger 2 .
  • the outdoor heat exchanger 2 is formed of, for example, a fin-and-tube heat exchanger that exchanges heat between refrigerant which flows in a heat transfer tube and air which passes through a fin.
  • the outdoor heat exchanger 2 includes a first heat exchange section 2 A that extends straight in a direction from the first side panel 1 CC toward the second side panel 1 C, a curved second heat exchange section 2 B, and a third heat exchange section 2 C that is disposed to face the first side panel 1 CC.
  • the first heat exchange section 2 A and the second heat exchange section 2 B are connected to each other, and the second heat exchange section 2 B and the third heat exchange section 2 C are connected to each other.
  • a refrigerant distribution member 20 such as a header that distributes refrigerant to various pipes and heat transfer tubes is disposed on the end portion of the outdoor heat exchanger 2 adjacent to the second side panel 1 C.
  • the refrigerant distribution member 20 is disposed on the end portion of the first heat exchange section 2 A. Further, a hairpin 2 C 1 which is a heat transfer tube bent in a semi-circular shape is disposed on the third heat exchange section 2 C.
  • the fixed panel 1 F is formed to separate a space into a space (machine chamber R 1 ) in which the compressor 4 is located and a space in which the valve 7 is located.
  • the fixed panel 1 F is a plate member which extends in the up-down direction.
  • the fixed panel 1 F extends from the bottom panel 1 E to a height position of the upper ends of the side cutout portion 1 CH of the front cutout portion 1 BH.
  • One end portion (on the front side) of the fixed panel 1 F is disposed to face the inner surface of the front panel 1 B and the other end portion (on the back side) of the fixed panel 1 F is disposed along the front end portion of the second side panel 1 C.
  • the fixed panel 1 F is disposed to form an acute angle between the fixed panel 1 F and the front panel 1 B.
  • the fixed panel 1 F is connected to the roof panel 1 FF.
  • the roof panel 1 FF is connected to the upper end portion of the fixed panel 1 F, the front cutout portion 1 BH and the side cutout portion 1 CH, and is disposed above the valve 7 . Since the fixed panel 1 F does not extend from the bottom panel 1 E to the top panel 1 A and the upper end portion of the fixed panel 1 F is disposed at the middle between the bottom panel 1 E to the top panel 1 A, the machine chamber R 1 may have a large volume, thereby effectively using a limited space in the outdoor unit 100 .
  • the roof panel 1 FF is formed of, for example, a triangular shaped plate member.
  • the roof panel 1 FF is disposed such that the apex of the corner C of the bottom panel 1 E is located under the apex of the roof panel 1 FF.
  • the apex of the roof panel 1 FF as described herein is an apex located at the corner of the right end portion of the front panel 1 B and the front end portion of the second side panel 1 C.
  • the apex has an angle which is larger than those of the other two angles.
  • the valve 7 is mounted on the fixed panel 1 F.
  • the valve 7 is made up of a valve 7 A and a valve 7 B.
  • the valve 7 is connected to the refrigerant pipe P.
  • the valve 7 is disposed in a closed space formed by the outer surface of the fixed panel 1 F, the upper surface of the bottom panel 1 E and an inner surface of the cover 1 D. Accordingly, even if the refrigerant is burnt and the fire is spread to the refrigerant pipe P, the spread of fire can be prevented at a position of the valve 7 . That is, fire is prevented from burning the compressor 4 , the outdoor heat exchanger 2 and the like.
  • the cover 1 D is disposed on the peripheral edge 1 E 1 of the bottom panel 1 E and is detachably mounted at a position facing the fixed panel 1 F so as to cover the valve 7 .
  • the cover 1 D is attached at a position corresponding to the corner C of the bottom panel 1 E.
  • the cover 1 D forms part of front surface and part of right side surface of the casing of the outdoor unit 100 . That is, the cover 1 D is detachably attached to the front cutout portion 1 BH and the side cutout portion 1 CH.
  • the cover 1 D includes a front surface 1 D 1 which is parallel to the front panel 1 B, a side surface 1 D 2 which is perpendicular to the front surface 1 D 1 , a lead-out section 1 D 3 used for leading out the refrigerant pipe P which is connected to the valve 7 , and a terminal table protecting section 1 D 4 which is formed to cover a mounting portion Q such as a terminal table connected to an electric component box 6 .
  • the cover 1 D is made up of the front surface 1 D 1 , the side surface 1 D 2 , the lead-out section 1 D 3 and the terminal table protecting section 1 D 4 , which are integrally formed.
  • the cover 1 D may be formed of, for example, a resin or a metal plate.
  • the front surface 1 D 1 is a plate shaped member which upwardly extends from the bottom panel 1 E.
  • the left end portion of the front surface 1 D 1 extends along the right end portion of the front panel 1 B. Further, the right end portion of the front surface 1 D 1 is connected to the side surface 1 D 2 .
  • the side surface 1 D 2 is a plate shaped member which extends along the outer surface of the second side panel 1 C.
  • the side surface 1 D 2 has an L-shape in plan view.
  • the lead-out section 1 D 3 is formed on the side surface 1 D 2 at a height position of the valve 7 .
  • the lead-out section 1 D 3 is formed to protrude rightward from the side surface 1 D 2 . Accordingly, the side surface of the cover 1 D has a stepped portion at a position at which the lead-out section 1 D 3 is formed. If the cover 1 D does not have the lead-out section 1 D 3 , although the refrigerant pipe P can be easily led out, rain water leaks into the casing of the outdoor unit 100 . Since the cover 1 D has the lead-out section 1 D 3 which protrudes from the side surface 1 D 2 , leaking of rain water into the casing of the outdoor unit 100 can be prevented while avoiding interference with the refrigerant pipe P.
  • the terminal table protecting section 1 D 4 is formed on the same plane as that of the lead-out section 1 D 3 , and protrudes rightward from the side surface 1 D 2 .
  • the lower end portion of the terminal table protecting section 1 D 4 is connected to the upper end portion of the lead-out section 1 D 3 . Further, the lower end portion of the terminal table protecting section 1 D 4 is connected to the side surface 1 D 2 .
  • the cover 1 D includes the front surface 1 D 1 , the side surface 1 D 2 , the lead-out section 1 D 3 and the terminal table protecting section 1 D 4 which are integrally formed, and can protect the terminal table as well as the valve 7 .
  • FIG. 5A is an explanatory view of and around the valve 7 of the outdoor unit 100 according to Embodiment.
  • FIG. 5B is an explanatory view which shows the bottom panel 1 E, the fixed panel 1 F, the valve 7 , the refrigerant pipe R and the cover 1 D of the outdoor unit 100 according to Embodiment.
  • FIG. 5C is an explanatory view of a state in which the cover 1 D of FIG. 5B is removed.
  • valve 7 B is disposed under the valve 7 A.
  • the valve 7 A and the valve 7 B are connected to the respective refrigerant pipes P.
  • the valve 7 is fixed to the fixed panel 1 F.
  • the cover 1 D is attached at a position corresponding to the corner C of the bottom panel 1 E so as to prevent rainwater from leaking into a closed space SP in which the valve 7 is disposed.
  • the lead-out section 1 D 3 which protrudes from the side surface 1 D 2 is formed on the cover 1 D, the refrigerant pipe P can be easily led out from the outdoor unit 100 .
  • the lead-out section 1 D 3 can prevent rainwater from leaking into the casing. Further, it also prevents the valve 7 from being exposed, thereby improving the design.
  • the bottom panel 1 E includes the projection J.
  • the projection J is formed at a position corresponding to the first heat exchange section 2 A of the outdoor heat exchanger 2 and protrudes in the horizontal direction. This allows a larger outdoor heat exchanger 2 to be accommodated. That is, a width dimension of the first heat exchange section 2 A of the outdoor heat exchanger 2 can be increased by the amount of the area on which the projection J is formed.
  • FIG. 8 is a schematic view of a horizontal cross section of the outdoor unit of a conventional air-conditioning apparatus.
  • the conventional outdoor unit which does not have the projection J as shown in FIG. 8 has a problem that, when housing a larger heat exchanger, the width of the front and back sides of the outdoor unit increases, leading to increase in size of the outdoor unit.
  • the front side of a portion of the peripheral edge 1 E 1 on which the projection J is formed does not protrude. That is, in the bottom panel 1 E, the width dimension on the back side of the outdoor unit 100 is increased due to the projection J being formed, while the width dimension on the front side is relatively short since there is no structure corresponding to the projection J. As a result, the outdoor unit 100 can be prevented from being increased in size.
  • the outdoor unit 100 of Embodiment 1 is capable of housing a larger heat exchanger (outdoor heat exchanger 2 ) while preventing the outdoor unit 100 from increasing in size.
  • FIG. 6 shows a modified example 1 of the outdoor unit 100 according to Embodiment.
  • FIG. 6( a ) is a perspective view of the outdoor unit 100
  • FIG. 6( b ) is a front view of the outdoor unit 100 .
  • a front end of the roof panel 1 FF (apex of a right angle) comes on the front surface, and the apex of the corner C is located under the apex of the largest angle.
  • the apex of the right angle of the roof panel 1 FF is located at a backward position. Accordingly, a folded portion 21 is formed on the front panel 1 B, and a folded portion 22 is formed on the second side panel 1 C.
  • the front panel 1 B and the second side panel 1 C are positioned such that a side end portion of the folded portion 21 and a side end portion of the folded portion 22 are along each other.
  • the fixed panel 1 F, the cover 1 D and the second side panel 1 C are positioned from the bottom panel 1 E to the top panel 1 A extending in the up-down direction.
  • the outdoor unit 100 of modified example 1 has an effect as described below in addition to the same effect as that of the outdoor unit 100 of the above Embodiment. That is, the outdoor unit 100 of modified example 1 can be reduced in size, while reducing a volume of the machine chamber R 1 since the outdoor unit 100 includes the folded portion 21 and the folded portion 22 .
  • FIGS. 7A to 7E show modified examples 2 to 6 of the outdoor unit according to Embodiment of the present invention.
  • the following modified examples 2 to 6 show various variations of the bottom panel 1 E.
  • the second side panel 1 C is formed to extend along the peripheral edge 1 E 1 of the bottom panel 1 E.
  • the fixed panel 1 F is not provided inward of the peripheral edge 1 E 1 of the bottom panel 1 E.
  • valve 7 is mounted on the second side panel 1 C.
  • a cover 10 D in modified examples 2 to 6 is mounted on the second side panel 1 C such that the surface of the cover 1 D protrudes from the second side panel 1 C.
  • FIGS. 7A (a), 7 B(a), 7 D(a), 7 D(a) and 7 E(a) show sectional views of the outdoor unit 100 .
  • FIGS. 7A (b 1 ), 7 B(b 1 ), 7 C(b 1 ), 7 D(b 1 ) and 7 E(b 1 ) show examples which adopts the roof panel 1 FF of Embodiment
  • FIGS. 7A (b 2 ), 7 B(b 2 ), 7 C(b 2 ), 7 D(b 2 ) and 7 E(b 2 ) show examples which adopts the roof panel 1 FF of modified example 1. Accordingly, the fixed panel 1 F shown in FIGS.
  • 7A (b 2 ), 7 B(b 2 ), 7 C(b 2 ), 7 D(b 2 ) and 7 E(b 2 ) has a height dimension larger than the fixed panel 1 F shown in FIGS. 7A (b 1 ), 7 B(b 1 ), 7 C(b 1 ), 7 D(b 1 ) and 7 E(b 1 ).
  • modified example 2 has a difference that the tapered shape surface J 1 described in Embodiment is provided as a vertical surface.
  • Modified example 2 may adopt the roof panel 1 FF of the outdoor unit 100 of Embodiment as shown in FIG. 7A (b 1 ), or may adopt the roof panel 1 FF of the outdoor unit 100 of modified example 1 as shown in FIG. 7A (b 2 ).
  • modified example 3 is the same as the outdoor unit 100 of Embodiment except for the difference described above.
  • Modified example 2 may adopt the roof panel 1 FF of the outdoor unit 100 of Embodiment as shown in FIG. 7B (b 1 ), or may adopt the roof panel 1 FF of the outdoor unit 100 of modified example 1 as shown in FIG. 7B (b 2 ).
  • the bottom panel 1 E has a cutout portion J 2 formed at a position of the corner C (which corresponds to the second corner). That is, in modified example 4, the bottom panel 1 E includes the cutout portion J 2 which is formed by cutting the corner C in a tapered shape to decrease a volume of the machine chamber R 1 .
  • the second side panel 1 C may extend to a position of the cutout portion J 2
  • the front panel 1 B may extend to a position of the cutout portion J 2 .
  • modified example 4 may adopt the roof panel 1 FF of the outdoor unit 100 of Embodiment as shown in FIG. 7C (b 1 ), or may adopt the roof panel 1 FF of the outdoor unit 100 of modified example 1 as shown in FIG. 7C (b 2 ).
  • modified example 5 As shown in FIG. 7D (a), in modified example 5, the bottom panel 1 E is formed such that the tapered shape surface J 1 of the projection J extends to the corner C. Further, modified example 5 may adopt the roof panel 1 FF of the outdoor unit 100 of Embodiment as shown in FIG. 7D (b 1 ), or may adopt the roof panel 1 FF of the outdoor unit 100 of modified example 1 as shown in FIG. 7D (b 2 ).
  • the bottom panel 1 E has the tapered shape surface J 1 which is a vertical surface. Further, the bottom panel 1 E also has the projection J on a side on which the corner C is formed. In addition, another vertical surface is provided at a position facing the vertical surface. That is, in modified example 6, the bottom panel 1 E has a recess J 3 formed of two projections J as seen from the above. The valve 7 is formed on the second side panel 1 C at a position corresponding to the recess J 3 . Further, modified example 6 may adopt the roof panel 1 FF of the outdoor unit 100 of Embodiment as shown in FIG. 7E (b 1 ), or may adopt the roof panel 1 FF of the outdoor unit 100 of modified example 1 as shown in FIG. 7E (b 2 ).
  • the outdoor unit 100 according to modified examples 2 to 6 has the same effect as that of the outdoor unit 100 of the above Embodiment.

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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)
US15/520,664 2014-12-26 2014-12-26 Outdoor unit Abandoned US20170314794A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2014/084490 WO2016103442A1 (ja) 2014-12-26 2014-12-26 室外機

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US20170314794A1 true US20170314794A1 (en) 2017-11-02

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US15/520,664 Abandoned US20170314794A1 (en) 2014-12-26 2014-12-26 Outdoor unit

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US (1) US20170314794A1 (de)
EP (1) EP3059507B1 (de)
JP (1) JP6227167B2 (de)
CN (2) CN107003018B (de)
WO (1) WO2016103442A1 (de)

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US20100294466A1 (en) * 2009-05-20 2010-11-25 Sanyo Electric Co., Ltd. Outdoor unit
US20110314861A1 (en) * 2009-02-26 2011-12-29 Chan Gu Kim Air conditioner and outdoor unit

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JPH05296496A (ja) * 1992-04-22 1993-11-09 Mitsubishi Electric Corp 空気調和機の室外ユニット
KR0132997B1 (ko) * 1994-08-20 1998-04-21 김광호 공기조화기의 실외기
JPH10205829A (ja) * 1997-01-20 1998-08-04 Fujitsu General Ltd 空気調和機の室外機
JP3831697B2 (ja) * 2001-12-27 2006-10-11 三洋電機株式会社 空気調和装置
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Also Published As

Publication number Publication date
CN107003018A (zh) 2017-08-01
CN205245389U (zh) 2016-05-18
EP3059507B1 (de) 2018-03-14
CN107003018B (zh) 2020-06-26
EP3059507A4 (de) 2016-12-28
JPWO2016103442A1 (ja) 2017-05-25
JP6227167B2 (ja) 2017-11-08
WO2016103442A1 (ja) 2016-06-30
EP3059507A1 (de) 2016-08-24

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