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WO2012160749A1 - Unité extérieure pour dispositif de réfrigération - Google Patents

Unité extérieure pour dispositif de réfrigération Download PDF

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Publication number
WO2012160749A1
WO2012160749A1 PCT/JP2012/002587 JP2012002587W WO2012160749A1 WO 2012160749 A1 WO2012160749 A1 WO 2012160749A1 JP 2012002587 W JP2012002587 W JP 2012002587W WO 2012160749 A1 WO2012160749 A1 WO 2012160749A1
Authority
WO
WIPO (PCT)
Prior art keywords
heat exchanger
casing
compressor
outdoor
outdoor heat
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.)
Ceased
Application number
PCT/JP2012/002587
Other languages
English (en)
Japanese (ja)
Inventor
竿尾　忠
幹夫 賀川
史朗 小池
中川　裕介
知久 竹内
克敏 櫻井
成毅 神谷
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Daikin Industries Ltd
Original Assignee
Daikin Industries Ltd
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 Daikin Industries Ltd filed Critical Daikin Industries Ltd
Priority to CN201290000441.6U priority Critical patent/CN203595201U/zh
Publication of WO2012160749A1 publication Critical patent/WO2012160749A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • F24F1/08—Compressors specially adapted for separate outdoor units
    • F24F1/10—Arrangement or mounting thereof
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • F24F1/46—Component arrangements in separate outdoor units
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • F24F1/46—Component arrangements in separate outdoor units
    • F24F1/48—Component arrangements in separate outdoor units characterised by air airflow, e.g. inlet or outlet airflow
    • F24F1/50—Component arrangements in separate outdoor units characterised by air airflow, e.g. inlet or outlet airflow with outlet air in upward direction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • 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 an outdoor unit of a refrigeration apparatus, and particularly to an arrangement structure of an outdoor heat exchanger and a compressor in a casing of the outdoor unit.
  • a so-called indoor multi-type air conditioner is known as a refrigeration apparatus having a configuration in which an outdoor unit installed outdoors and an indoor unit installed indoors are connected by a refrigerant pipe (for example, Patent Document 1). reference).
  • a plurality of indoor units are connected to one outdoor unit, and a plurality of rooms such as a building can be air-conditioned.
  • refrigerant circuit devices such as a compressor and an outdoor heat exchanger, refrigerant piping connecting them, an outdoor fan for blowing air to the outdoor heat exchanger, and the compression Electrical components that control the machine and outdoor fans are provided.
  • the outdoor heat exchanger is fixed in a state where the lower end surface is placed on the upper surface of the bottom frame of the casing, and is installed so that the heat exchange surface is along the side surface of the casing.
  • the outdoor heat exchanger is formed in a rectangular tube shape so that the heat exchange surface is arranged along all of the plurality of side surfaces of the casing. (See, for example, Patent Document 2).
  • the casing has a quadrangular shape, and the heat exchanger is formed in a cross-section “B” shape.
  • JP 2007-218534 A Japanese Utility Model Publication No. 60-18767
  • the compressor and other refrigerant circuit components are arranged in the casing, for example, when the compressor is removed for maintenance, the compressor is installed in the casing. It is necessary to perform the work of taking out from above.
  • the outdoor fan is arranged above the casing. Therefore, it is necessary to remove the fan at the time of the above maintenance, and the work is extremely complicated. turn into.
  • the present invention has been made in view of such problems, and an object of the present invention is to provide a compressor or the like in an outdoor unit of a refrigeration apparatus having a configuration in which an outdoor heat exchanger is disposed along a plurality of side surfaces of a casing. Is to allow easy maintenance.
  • a shut-off valve (55) provided with a compressor (50), an outdoor heat exchanger (30), and an outdoor fan (40) in a casing (20), and to which a communication pipe to an indoor unit is attached.
  • the outdoor heat exchanger (30) extends along all of the plurality of side surfaces of the casing (20). It is assumed that the outdoor unit of the refrigeration apparatus is configured by a cylindrical heat exchanger that is fixed to the bottom frame (22) of the casing (20) with the heat exchange surface arranged and one end surface at the lower end. It is said.
  • an openable service surface is provided on one side surface of the casing (20), and each of the outdoor heat exchangers (30) is provided in the casing (20).
  • the compressor (50) is disposed at a position surrounded by the heat exchange surface, the closing valve (55, 56) and the mounting member (57) are disposed at one end of the service surface, and the service surface
  • An end portion of the outdoor heat exchanger (30) extending from the end side is disposed near the center in the width direction of the service surface, and one end of the outdoor heat exchanger (30) on the service surface and the closing valve (55, 56).
  • the compressor (50) in the outdoor unit in which the compressor (50) is arranged inside the outdoor heat exchanger (30) formed along the plurality of side surfaces of the casing (20), the compressor (50) It can be removed from the service access opening (3b).
  • the service access opening (3b) is usually covered with the side panel of the casing (20).
  • the side The panel should also be removed from the casing (20).
  • an electrical component unit (60) including a compressor (50), an outdoor heat exchanger (30), and an outdoor fan (40) in a casing (20), and storing electrical components.
  • the outdoor heat exchanger (30) has a heat exchange surface disposed along all of the plurality of side surfaces of the casing (20), and the bottom of the casing (20) with one end surface at the lower end. It is assumed that the outdoor unit of the refrigeration apparatus is constituted by a cylindrical heat exchanger fixed to the frame (22).
  • an openable service surface is provided on one side surface of the casing (20), and the outdoor heat exchanger (30) is provided in the casing (20).
  • the compressor (50) is disposed at a position surrounded by each heat exchange surface
  • the electrical component unit (60) is disposed on one end side of the service surface
  • the outdoor unit extends from the other end side of the service surface.
  • An end portion of the heat exchanger (30) is disposed near the center in the width direction of the service surface, and a compressor service is provided between the one end of the outdoor heat exchanger (30) on the service surface and the electrical component unit (60).
  • the access opening (3c) for use is formed.
  • the compressor (50) in the outdoor unit in which the compressor (50) is disposed inside the outdoor heat exchanger (30) formed along the plurality of side surfaces of the casing (20), the compressor (50) It can be taken out from the service access opening (3c) between the outdoor heat exchanger (30) and the electrical component unit (60).
  • the third invention is characterized in that, in the first or second invention, a plurality of the compressors (50) are installed in the casing (20).
  • each compressor (50 ) Can be removed from the service access opening (3b).
  • the casing (20) is provided with a compressor cover (70) for covering the compressor (50), and
  • the compressor cover (70) is configured to be disassembled and assembled using a fastening member, and the opening size of the service access opening (3b) is adjusted to the fastening member by a fastening tool for operating the fastening member. It is characterized in that it is configured to have a size that allows access and removal of a part obtained by disassembling the compressor cover (70).
  • the opening (3b) is dimensioned so that the fastening member of the compressor cover (70) can be operated from the service access opening (3b) with a fastening tool. Therefore, the compressor cover (70) can be disassembled from the outside of the casing (20) through the opening (3a), and then the disassembled cover parts and the compressor (50) can be taken out. Alternatively, the compressor cover (70) can be assembled from the outside of the casing (20) after the compressor (50) is assembled into the casing (20) through the service access opening (3b).
  • the first fastening member (77) is located within a range where the fastening member of the compressor cover (70) is opened by the service access opening (3b);
  • a second fastening member (76) positioned deeper in the outdoor heat exchange surface (30) than the service access opening (3b), and the fastening direction of the second fastening member (76) It is characterized in that it is inclined toward the service access opening (3b) with respect to the direction perpendicular to the plane of the machine cover (70).
  • the fastening direction of the fastening member of the compressor cover (70) provided at the back of the end of the service access opening (3b) is the direction perpendicular to the plane of the compressor cover (70). Therefore, the compressor cover (70) can be disassembled and assembled without increasing the width of the outdoor heat exchanger (30) more than necessary.
  • the compressor (50) in the outdoor unit in which the compressor (50) is arranged inside the outdoor heat exchanger (30) formed along the plurality of side surfaces of the casing (20), the compressor (50) is provided with the above service. Can be removed from the access opening (3b).
  • positioning an outdoor heat exchanger (30) along the several side surface of a casing (20) although an outdoor fan (40) is arrange
  • the compressor (50) is taken out from the service access opening (3c) between the outdoor heat exchanger (30) and the electrical component unit (60). Maintenance work can be easily performed.
  • the inside of the outdoor heat exchanger (30) in the configuration in which the outdoor heat exchanger (30) is arranged so that the plurality of heat exchange surfaces are along the side surfaces of the compressor (50), the inside of the outdoor heat exchanger (30) A plurality of compressors (50) arranged in the can be taken out from the opening (3b). Therefore, even in an outdoor unit including a plurality of compressors (50), maintenance work for the compressor (50) can be easily performed.
  • the maintenance work for the compressor (50) can be easily performed.
  • the fastening direction of the fastening member of the compressor cover (70) provided at the back of the end of the service access opening (3b) is set to the surface of the compressor cover (70).
  • the compressor cover (70) can be disassembled and assembled without increasing the width of the outdoor heat exchanger (30) more than necessary. A sufficient heat exchange area can be secured to prevent a decrease in the capacity of the heat exchanger.
  • FIG. 1 is a perspective view showing an external shape of an outdoor unit of an air-conditioning apparatus according to Embodiment 1 of the present invention.
  • FIG. 2 is a first perspective view showing the internal structure of the outdoor unit shown in FIG.
  • FIG. 3 is a second perspective view showing the internal structure of the outdoor unit shown in FIG.
  • FIG. 4 is a plan view showing the internal structure of the lower half of the outdoor unit of FIG.
  • FIG. 5 is an exploded perspective view of the compressor cover according to the first embodiment.
  • FIG. 6 is a cross-sectional view illustrating an exploded state of the compressor cover according to the first embodiment.
  • FIG. 7 is a perspective view illustrating an external shape of an outdoor unit of the air-conditioning apparatus according to Embodiment 2.
  • FIG. 2 is a first perspective view showing the internal structure of the outdoor unit shown in FIG.
  • FIG. 3 is a second perspective view showing the internal structure of the outdoor unit shown in FIG.
  • FIG. 4 is a plan view showing the internal structure of the lower half of
  • FIG. 8 is a first perspective view showing the internal structure of the outdoor unit shown in FIG.
  • FIG. 9 is a second perspective view showing the internal structure of the outdoor unit shown in FIG.
  • FIG. 10 is a plan view showing the internal structure of the lower half of the outdoor unit shown in FIG.
  • FIG. 11 is a side view of the outdoor unit according to the third embodiment.
  • the outdoor unit (10) of the first embodiment is used for an air conditioner that is a refrigeration apparatus.
  • the indoor unit is connected to a vapor compression type. It constitutes the refrigeration cycle.
  • the outdoor unit (10) is installed, for example, on the roof of a building, and includes a casing (20), an outdoor heat exchanger (30), an outdoor fan (40), and a compression mechanism (50).
  • the casing (20) is formed in a rectangular shape in plan view, and includes four columns (21), a bottom frame (22), a side panel (23), and a top plate (24).
  • the four struts (21) are provided at the four corners, and the bottom frame (22) is fixed to the lower part.
  • a foundation leg (27) is connected to the lower ends of the left and right support columns (21, 21) on the front side, and a foundation leg (27) is also connected to the lower ends of the left and right support columns (21) on the rear side.
  • the side panel (23) includes an upper side panel (23a) that forms four upper half portions of the casing (20), and a front side panel that forms the front surface and the left half of the lower half portion of the casing (20). (23b) and a lateral side panel (23c) that forms the left lateral surface in the lower half of the casing (20) and forms the front half.
  • the side surface of the casing (20) includes a right half of the front surface in the lower half, a right lateral surface in the lower half, a back surface in the lower half, and a rear half of the left lateral surface in the lower half.
  • the suction port (25) is formed in.
  • the top plate (24) is fixed to the upper end of the support (21) to form an air outlet (26) and is provided with a grill (24a) covering the air outlet (26).
  • the outdoor heat exchanger (30) is a fin-and-tube heat exchanger and is configured to exchange heat between outdoor air and the refrigerant. And the said outdoor heat exchanger (30) is provided in the state stood up and down, and a heat exchange surface spans all the side surfaces of the said casing (20) (it follows all the some side surfaces which a casing (20) has). It is comprised by the bending heat exchanger (rectangular tube type heat exchanger). Further, a predetermined opening (3a) is formed between both side ends of the outdoor heat exchanger (30) with a left corner portion on the front side of the casing (20) interposed therebetween.
  • Tube plates (31) used to fix the outdoor heat exchanger (30) to the casing (20) are provided at both ends of the outdoor heat exchanger (30) forming the opening (3a).
  • the casing (20) is provided with the front side panel (23b) and the lateral side panel (23c) corresponding to the opening (3a) of the outdoor heat exchanger (30).
  • the front side of the casing (20) in which the opening (3a) of the outdoor heat exchanger (30) is provided is a service surface, and the part from which the front side panel (23b) is removed becomes an open surface.
  • a shut-off valve (55, 5) for attaching a communication pipe connecting the outdoor unit (10) and the indoor unit (not shown).
  • 56) and a mounting member (57) for fixing the closing valve (55, 56) to the casing (20).
  • the edge part of the outdoor heat exchanger (30) extended from the other end side of a service surface is located in the approximate center (near the center of the width direction of a casing (20)) of a service surface.
  • a service access opening (3b) is formed between the end of the outdoor heat exchanger (30) and the closing valve (55, 56) or the mounting member (57).
  • the service access opening (3b) can be said to be a compressor outlet opening.
  • the compression mechanism (50) is arranged in a position surrounded by each heat exchange surface of the outdoor heat exchanger (30) in the casing (20). Specifically, in plan view, most of the compressor is located inside a virtual cylinder formed by the outdoor heat exchanger (30) and a line connecting both ends of the outdoor heat exchanger (30). It is supposed to be.
  • the bottom frame (22) is provided with the compression mechanism (50), an oil separator (51), and an accumulator (52).
  • the compression mechanism (50) includes two compressors (5a, 5b). It consists of
  • the casing (20) is positioned between the lower space (2a) in which the outdoor heat exchanger (30) is accommodated and the upper space (2b) in which the outdoor fan (40) is accommodated.
  • Stays (20a, 20b, 20c, 20d) extending in the direction are attached to the four surfaces.
  • Two outdoor fans (40) are provided, which include a fan body (41), a fan motor (not shown), and a bell mouth (43), and are attached to the stays (20a, 20c).
  • an electrical component unit (60) that houses electrical components for controlling the compression mechanism (50) and the like is attached to the casing (20).
  • the electrical component unit (60) is disposed above the front surface of the outdoor heat exchanger (30) and in the vicinity of the upper end of the outdoor heat exchanger (30), and the bell of the upper side panel (23a) and the outdoor fan (40). It is provided between the mouse (43).
  • the outdoor heat exchanger (30) is fixed to the casing (20) in a state where it is placed on the bottom frame (22) with one end face at the lower end.
  • the outdoor heat exchanger (30) is formed by fastening tube plates (31) provided at both ends of the outdoor heat exchanger (30) to a casing (20) including a bottom frame (22). Is fixed to the casing (20).
  • the outdoor heat exchanger (30) is provided with a plurality of tube plates as necessary in addition to the tube plates (31) shown at both ends of the outdoor heat exchanger (30). Tube sheets may also be used to secure the outdoor heat exchanger (30) to the casing (20).
  • the compressor cover (70) that covers the compression mechanism (50) is attached to the bottom frame (22).
  • the compressor cover (70) is provided as a soundproof box for reducing noise caused by vibration of the compression mechanism (50).
  • the compressor cover (70) includes a front wall plate (71), left and right side wall plates (72, 73), a rear wall plate (74), and an upper wall plate (75). And are fixed to each other with a fastening member such as a screw to form a vertically long rectangular box whose upper end is closed.
  • the front wall (71), the left and right side wall plates (72, 73), the rear wall plate (74), and the upper wall plate (75) are each a sheet metal member formed by bending a metal plate.
  • a soundproof material may be attached to the inner surface of the member constituting the compressor cover (70).
  • the front wall plate (71) is composed of an upper front plate (71a) and a lower front plate (71b) which are separate members.
  • the height of the upper front plate (71a) and the lower front plate (71b) The total dimension of the height dimensions of the left and right side wall plates (72, 73) and the rear wall plate (74) substantially coincides with each other.
  • the upper front plate (71a) is disposed above the lower front plate (71b) with no gap.
  • the right side wall plate (72) is a member in which the right side plate (72a) and the right front plate (72b) are integrally formed, and is a member having an “L” shape in plan view.
  • the mounting piece (70a) is used to fix the right side wall plate to the bottom frame (22) using a fastening member such as a screw.
  • the left wall plate (73) is a bent part in which the left horizontal plate (73a) and the lower front plate (71b) are integrated.
  • the left side plate (73a) of the left side wall plate (73) and the lower front plate (71b) are provided with mounting pieces (outside the compressor cover (70)), like the right side wall plate (72). 70a) is provided.
  • the lower front plate (71b) is formed with a plurality of wiring holes (70b) through which a wire harness for electrical parts such as the compression mechanism (50) is passed.
  • the rear wall plate (74) is a member formed by bending a back plate (74a), a right rear plate (74b), and a left rear plate (74c) from a single metal plate.
  • a mounting piece (70a) projecting outside the compressor cover (70). Yes.
  • a notch (74d) through which a suction pipe and a discharge pipe connected to each of the two compressors (5a, 5b) are inserted. Is formed.
  • the suction pipe and the discharge pipe are attached to the back plate (74a) via an attachment member having a damping member such as a rubber hose.
  • the right side plate (72a) of the right side wall plate (72) and the right rear plate (74b) of the rear wall plate (74) are integrated using a hook (70e).
  • flange plates (72c, 74e) are provided at the joints of the right lateral plate (72a) and the right rear plate (74b), respectively, and hooks (70e) are attached to the flange plate (72c) of the right lateral plate (72a).
  • a hole (70f) for engaging the hook (70e) is formed in the flange plate (74e) of the right rear plate (74b).
  • the left lateral plate (73a) of the left wall plate (73) and the left rear plate (74c) of the rear wall plate (74) are also integrated using a hook (70e). Therefore, the flange plate (73c, 74f) is provided at the joint of the left horizontal plate (73a) and the left rear plate (74c), respectively, and the flange plate (73c) of the left horizontal plate (73a) While the hook (70e) is formed, the flange plate (74f) of the left rear plate (74c) is formed with a hole (70f) for engaging the hook (70e).
  • the upper wall plate (75) is configured to be screwed to the upper ends of the right wall plate (72), the left wall plate (73) and the rear wall plate (74).
  • screw holes are formed at a predetermined pitch in the peripheral portion of the upper wall plate (75), while the upper end portions of the right wall plate (72), left wall plate (73) and rear wall plate (74) are
  • An upper plate fixing piece (70c) having a screw hole is formed by being folded inside the compressor cover (70).
  • the structure of attaching the upper front plate (71a) and the lower front plate (71b), which are the front wall plates (71), to the right wall plate (72) is shown in the sectional view of FIG.
  • the right end portion of the upper front plate (71a) and the lower front plate (71b) and the left end portion of the right front plate (72b) are overlapped with each other with screws (second fastening members)
  • Flange plates (70d, 70d) for fixing in (76) are formed.
  • These flange plates (70d, 70d) are formed so that the screw fastening direction is inclined toward the opening (3a) with respect to the direction perpendicular to the surface of the front wall plate (71).
  • the left end of the upper front plate (71a) in FIG. 5 is fixed to the flange plate (73b) formed at the front end of the left wall plate (73) with a screw (second fastening member) (77).
  • the screwing direction is a direction perpendicular to the plane of the upper front plate (71a
  • the compressor cover (70) having the above-described configuration is constructed such that the compression mechanism (50) is first fixed to the bottom frame (22), and then the rear wall plate (74) is attached to perform piping work, and then the left and right side walls After attaching the plates (72, 73) to the bottom frame (22), the attachment work is performed in the order of fixing the front wall plate (71) to the right wall plate (72).
  • the lower front plate (71b) may be attached to the bottom frame (22) either before or after the lower front plate (71b) is attached to the right wall plate (72).
  • the compression mechanism (50) is disposed at a position surrounded by each heat exchange surface of the outdoor heat exchanger (30), and the outdoor heat exchanger
  • the heat exchange surface with the opening (3a) of (30) has a service access opening (3b) formed from the end of the outdoor heat exchanger (30) to the closing valve (55, 56) or the mounting member (57). )have.
  • the opening size of the service access opening (3b) is set to a required removal size of the compression mechanism (50) (compressor) (5a, 5b).
  • the opening size of the above service access opening (3b) where the required removal size is set is the minimum removal width size of each compressor (5a, 5b) (can be considered as the outer diameter size of the compressor). It is set larger, but it is not set larger than necessary.
  • the casing (20) is provided with the compressor cover (70) for covering the compression mechanism (50), and the compressor cover (70) is a fastening member such as a screw. It can be disassembled and assembled using
  • the opening dimension of the service access opening (3b) (the width dimension between the shut-off valve (54) and the tube plate (31) in the opening (3a) shown in FIG. 4) is the second fastening. The dimension is set so that the fastening tool for operating the screw (76) as a member does not interfere with the tube sheet (31).
  • the end plate (31) is set to a position where the fastening tool does not interfere, and the opening size of the service access opening (3b) is determined by the fastening tool to operate the fastening member.
  • the screw (76) can be accessed from the opening (3a), and the dimensions are set such that the parts obtained by disassembling the compressor cover (70) can be taken out.
  • the upper front plate (71a) is removed from the compressor cover (70) during maintenance of the compressors (5a, 5b).
  • a fastening member of the compressor cover (70) a range opened by the service access opening (3b) with respect to the heat exchange surface on the front side having the opening (3a)
  • the first fastening member (77) located inside and the second fastening member (76) located deeper in the heat exchange surface than the opening (3b) are used as the second fastening member.
  • the fastening direction of (76) is inclined toward the opening side with respect to the direction perpendicular to the plane of the front wall plate (71) of the compressor cover (70).
  • the outdoor air passing through the outdoor heat exchanger (30) exchanges heat with the refrigerant flowing in the outdoor heat exchanger (30), and the refrigerant is generated in the outdoor heat exchanger (30) that serves as an evaporator during heating operation. Heat is taken away from the refrigerant and cooled, and during the cooling operation, the outdoor heat exchanger (30), which is a condenser, takes heat from the refrigerant and is overheated. Then, the outdoor air further passes through the outdoor fan (40) and turns upward, and is blown out from the air outlet (26).
  • the service access opening (3b) provided on the front side of the casing (20) is formed so as to satisfy the required removal size of the compression mechanism (50).
  • the compression mechanism (50) (compressor (5a, 5b)) is It can be removed from the service access opening (3b).
  • the service access opening (3b) is covered with the front panel (23b) of the casing.
  • the compression mechanism (50) is removed from the casing (50).
  • the front side panel (23b) is also removed from the casing (20).
  • the opening width is dimensioned so that the screw (76) of the compressor cover (70) can be operated from the service access opening (3b) with a fastening tool. Therefore, the compressor cover (70) can be disassembled from the outside of the casing (20) through the opening (3a), and then the compressors (5a, 5b) can be taken out. After the compressor (5a, 5b) is installed in the casing (20) through the service access opening (3b), the upper front plate (71a) of the compressor cover (70) is removed from the outside of the casing (20). It can also be assembled.
  • the fastening direction of the screw (76) of the compressor cover (70) provided at the back of the opening (3a) of the outdoor heat exchanger (30) is determined by the compressor cover. Since it is inclined to lie on the opening (3a) side with respect to the direction perpendicular to the plane of (70), the compressor cover (70) can be installed without widening the outdoor heat exchanger (30) more than necessary. Disassembly and assembly can be performed.
  • the outdoor fan (40) is generally disposed above the casing (20) as in this embodiment.
  • the service access opening (3b) is set to the required removal size of each compressor (5a, 5b)
  • a plurality of compressors (inside the outdoor heat exchanger (30)) ( 5a, 5b) can be reliably removed from the opening (3b). Therefore, the maintenance work of the compressors (5a, 5b) can be performed particularly easily also by this.
  • the fastening direction of the screw (76) of the compressor cover (70) provided at the back of the end of the opening (3a) of the outdoor heat exchanger (30) is
  • the upper front plate of the compressor cover (70) can be tilted with respect to the direction perpendicular to the plane of the machine cover (70) without increasing the width of the opening (3a) of the outdoor heat exchanger (30) more than necessary. Since (71a) can be disassembled and assembled, coupled with an appropriate setting of the width of the opening (3a), a sufficient heat exchange area can be secured to prevent a decrease in heat exchange capacity.
  • Embodiment 2 of the Invention A second embodiment of the present invention will be described.
  • the outdoor unit (10) of the second embodiment is configured smaller than that of the first embodiment.
  • the casing (20) is formed in a rectangular shape in plan view, and includes four columns (21), a bottom frame (22), a side panel (23), and a top plate (24).
  • the four struts (21) are provided at the four corners, and the bottom frame (22) is fixed to the lower part.
  • a foundation leg (27) is connected to the lower ends of the left and right support columns (21, 21) on the front side, and a foundation leg (27) is also connected to the lower ends of the left and right support columns (21) on the rear side.
  • the side panel (23) includes an upper side panel (23a) that forms four upper half portions of the casing (20), and a front side panel that forms the front surface and the left half of the lower half portion of the casing (20). (23b) and a lateral side panel (23c) that forms the left lateral surface in the lower half of the casing (20) and forms the front half.
  • the side surface of the casing (20) includes a right half of the front surface in the lower half, a right lateral surface in the lower half, a back surface in the lower half, and a rear half of the left lateral surface in the lower half.
  • the suction port (25) is formed in.
  • the top plate (24) is fixed to the upper end of the support (21) to form an air outlet (26) and is provided with a grill (24a) covering the air outlet (26).
  • the outdoor heat exchanger (30) is a fin-and-tube heat exchanger and is configured to exchange heat between outdoor air and the refrigerant. As shown in FIG.8 and FIG.9, the said outdoor heat exchanger (30) is provided in the state stood up and down, and is comprised by the bending heat exchanger over all the side surfaces of the said casing (20). Further, a predetermined opening (3a) is formed between both side ends of the outdoor heat exchanger (30) with a left corner portion on the front side of the casing (20) interposed therebetween. Tube plates (31) used to fix the outdoor heat exchanger (30) to the casing (20) are provided at both ends of the outdoor heat exchanger (30) forming the opening (3a). That is, the casing (20) is provided with the front side panel (23b) and the lateral side panel (23c) corresponding to the opening (3a) of the outdoor heat exchanger (30).
  • the front side of the casing (20) in which the opening (3a) of the outdoor heat exchanger (30) is provided is a service surface, and the part from which the front side panel (23b) is removed becomes an open surface.
  • a shut-off valve (55, 5) for attaching a communication pipe connecting the outdoor unit (10) and the indoor unit (not shown).
  • 56) and a mounting member (57) for fixing the closing valve (55, 56) to the casing (20).
  • the edge part of the outdoor heat exchanger (30) extended from the other end side of a service surface is located in the approximate center (near the center of the width direction of a casing (20)) of a service surface.
  • a service access opening (3b) is formed between the end of the outdoor heat exchanger (30) and the closing valve (55, 56) or the mounting member (57).
  • a compression mechanism (50), an oil separator (51), and an accumulator (52) are attached to the bottom frame (22), and the compression mechanism (50) includes one unit. It consists of a compressor (5a).
  • the casing (20) is positioned between the lower space (2a) in which the outdoor heat exchanger (30) is accommodated and the upper space (2b) in which the outdoor fan (40) is accommodated.
  • Stays (20a, 20b, 20c, 20d) extending in the direction are attached to the four surfaces.
  • the outdoor fan (40) includes a fan body (41), a fan motor (not shown), and a bell mouth (43), and is attached to the stay (20a, 20c).
  • an electrical component unit (60) that houses electrical components for controlling the compression mechanism (50) and the like is attached to the casing (20).
  • the electrical component unit (60) is disposed on a stay (20d) positioned on the left side when the casing (20) is viewed from the front, and is disposed in the immediate vicinity of the upper end of the outdoor heat exchanger (30). ) Between the upper side panel (23a) located on the left side when viewed from the front and the bell mouth (43) of the outdoor fan (40).
  • the outdoor heat exchanger (30) is fixed to the casing (20) in a state where it is placed on the bottom frame (22) with one end face at the lower end.
  • the outdoor heat exchanger (30) is formed by fastening tube plates (31) provided at both ends of the outdoor heat exchanger (30) to a casing (20) including a bottom frame (22). Is fixed to the casing (20).
  • the outdoor heat exchanger (30) is provided with a plurality of tube plates as necessary in addition to the tube plates (31) shown at both ends of the outdoor heat exchanger (30). Tube sheets may also be used to secure the outdoor heat exchanger (30) to the casing (20).
  • the outdoor unit (10) of the second embodiment is configured in substantially the same manner as that of the first embodiment except that the compression mechanism (50) is configured by one compressor (5a).
  • the configuration of the compressor cover (70) is the same as that of the first embodiment except that the size setting is different from that of the first embodiment because the number of the compressors (5a) is different. Therefore, an exploded perspective view of the compressor cover (70) of Embodiment 2 and a description of a specific configuration are omitted in this embodiment.
  • the screw (76) fastening direction should be set diagonally based on the disassembly and assembly structure of the compressor cover (70) and the positional relationship between the upper front plate (71a) and the service access opening (3b). It is the same as in the first embodiment.
  • the outdoor fan (40) is generally disposed above the casing (20) as in this embodiment.
  • the service access opening (3b) is set to a required size for taking out each compressor (5a), a plurality of compressors (5a) disposed inside the outdoor heat exchanger (30). Can be reliably removed from the opening (3b). Therefore, the maintenance work of the compressor can be performed particularly easily.
  • the fastening direction of the screw (76) of the compressor cover (70) provided at the back of the end of the opening (3a) of the outdoor heat exchanger (30) is
  • the upper front plate of the compressor cover (70) can be tilted with respect to the direction perpendicular to the plane of the machine cover (70) without increasing the width of the opening (3a) of the outdoor heat exchanger (30) more than necessary. Since (71a) can be disassembled and assembled, coupled with an appropriate setting of the width of the opening (3a), a sufficient heat exchange area can be secured to prevent a decrease in heat exchange capacity.
  • Embodiment 3 of the Invention >> Embodiment 3 of the present invention will be described.
  • FIG. 11 is a side view of a surface in which the opening (3a) of the heat exchanger is formed in the outdoor unit (10) of the third embodiment.
  • an outdoor heat exchanger (30), an outdoor fan (40), and a compression mechanism (50) are provided in the casing (20) of the outdoor unit (10).
  • the outdoor heat exchanger (30) is provided on the bottom surface of the casing (20) in an upright state, and the heat exchange surface extends over all side surfaces of the casing (20) (casing (20)
  • a bent heat exchanger (along with a plurality of side surfaces) square tube heat exchanger).
  • a tube sheet (31) is provided on the left end face of the outdoor heat exchanger (30) in the figure.
  • the outdoor fan (40) is provided above the outdoor heat exchanger (30) as in the above embodiments.
  • a closing valve (55, 56) for attaching a connecting pipe for connecting an indoor unit (not shown), and a closing valve (55, An attachment member (57) for fixing 56) to the casing (20) is provided.
  • the electrical component unit (60) is provided in the closing valve (55, 56) in the left end surface of the casing (20).
  • the service access opening (3b) which is the opening for taking out the compressor, includes the end of the outdoor heat exchanger (30), the closing valve (55, 56) or the mounting member (57). Is formed between.
  • the opening size of the service access opening (3b) is set to the required removal size of the compression mechanism (50). Note that the opening size of the service access opening (3b), where the required removal size is set, is set larger than the minimum removal width size of the compressor (50) (which can be considered as the outer diameter of the compressor). However, the size is not set larger than necessary.
  • the first service access opening (3b) It will have a smaller opening dimension than the second service access opening (3c).
  • the compressor (50) can be accessed even from the first service access opening (3b) having a small width dimension, the first service access opening (3b) is used for substantial service. It can be thought of as an access opening.
  • the right end of the electric component unit (60) in the figure is closer to the left side of the figure of the outdoor heat exchanger (30) than the right end of the figure in the closing valve (55, 56) or the mounting member (57).
  • the second service access opening (3c) has a smaller opening dimension than the first service access opening (3b).
  • the compressor (50) can be accessed even from the second service access opening (3c) having a small width dimension, the second service access opening (3c) is used for substantial service. It can be thought of as an access opening.
  • the compressor cover (70) is not shown, but is provided in the same manner as in the above embodiments, and is configured in the same manner as in the above embodiments, including the screw fastening direction. .
  • the outdoor unit which has arrange
  • the compressor (50) can be removed from the service access opening (3b, 3c), and it is not necessary to remove the outdoor fan (40) during maintenance. Can be easily performed.
  • the fastening direction of the screw (76) of the compressor cover (70) is set in the same manner as in the first and second embodiments, the workability can be improved and a sufficient heat exchange area is secured. Thus, a decrease in heat exchange capacity can be suppressed.
  • the first service access opening (3b) and the second service access opening (3c) are provided. However, depending on the arrangement of the devices in the casing (20), the second service access opening (3b) is provided. Only the service access opening (3c) may be provided.
  • the compressor (50) may be a plurality of compressors (5a, 5b) as in the first embodiment.
  • the fastening direction of the screws on the upper front plate may be perpendicular to the plane of the upper front plate on both the left and right sides.
  • the present invention is applicable to any type of outdoor unit in which the outdoor heat exchanger is fixed to the casing with the lower end placed on the bottom frame, and the compressor can be taken out from the opening of the outdoor heat exchanger.
  • the outdoor heat exchanger is fixed to the casing with the lower end placed on the bottom frame, and the compressor can be taken out from the opening of the outdoor heat exchanger.
  • other specific shapes may be changed as appropriate.
  • the arrangement of the refrigerant circuit device in the above embodiment is merely an example, and can be appropriately changed.
  • the present invention is useful for the arrangement structure of the outdoor heat exchanger and the compressor in the casing of the outdoor unit of the refrigeration apparatus.
  • Outdoor unit 20 Casing 22 Bottom frame 30 Outdoor heat exchanger 3a Opening 40 Outdoor fan 50 Compressor 70 Compressor cover 76 Screw (fastening member) 77 Screw (fastening member)

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

Abstract

Selon l'invention, un compresseur (50) est disposé en une position entourée par les surfaces d'échange de chaleur d'un échangeur de chaleur extérieur (30). Une ouverture (3a) s'étendant à partir d'une section intermédiaire d'une surface d'échange de chaleur jusqu'à une section d'extrémité de celle-ci est formée dans l'échangeur de chaleur extérieur (30), et des vannes de fermeture (55, 56) sont disposées dans l'ouverture (3a). Les dimensions d'une ouverture d'accès de service (3b) formée entre la surface d'extrémité d'ouverture de l'échangeur de chaleur extérieur (30) et les vannes de fermeture (55, 56) sont établies aux dimensions requises pour retirer le compresseur (50). Par conséquent, une maintenance peut être effectuée facilement sur le compresseur, et analogue, dans cette unité extérieure pour un dispositif de réfrigération ayant une configuration dans laquelle l'échangeur de chaleur extérieur (30) est disposé le long d'une pluralité de surfaces latérales d'une enceinte.
PCT/JP2012/002587 2011-05-20 2012-04-13 Unité extérieure pour dispositif de réfrigération Ceased WO2012160749A1 (fr)

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JP2011262769A JP5104993B1 (ja) 2011-05-20 2011-11-30 冷凍装置の室外ユニット
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JP2021156493A (ja) * 2020-03-27 2021-10-07 株式会社富士通ゼネラル 空気調和機の室外機
CN113983564A (zh) * 2021-11-09 2022-01-28 四川长虹空调有限公司 一种空调室外机机壳及其空调器
WO2025150180A1 (fr) * 2024-01-12 2025-07-17 三菱電機株式会社 Unité extérieure et dispositif à cycle de réfrigération

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ES2877120T3 (es) * 2019-03-08 2021-11-16 Daikin Ind Ltd Unidad de fuente de calor para bomba de calor
JP7402029B2 (ja) * 2019-12-06 2023-12-20 東芝キヤリア株式会社 熱源機

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JPS6018767Y2 (ja) * 1981-08-06 1985-06-06 ダイキン工業株式会社 空気調和機の室外機
JPH02213624A (ja) * 1988-12-05 1990-08-24 Carrier Corp 空調装置の熱交換ユニット
JPH09229422A (ja) * 1996-02-23 1997-09-05 Sanyo Electric Co Ltd 空気調和機の室外ユニット
JP2008292068A (ja) * 2007-05-25 2008-12-04 Fujitsu General Ltd 空気調和機の室外機

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JPS5573786U (fr) * 1978-11-16 1980-05-21
JPS6018767Y2 (ja) * 1981-08-06 1985-06-06 ダイキン工業株式会社 空気調和機の室外機
JPS58133771U (ja) * 1982-03-04 1983-09-08 三菱電機株式会社 空気調和機の室外ユニツト
JPH02213624A (ja) * 1988-12-05 1990-08-24 Carrier Corp 空調装置の熱交換ユニット
JPH09229422A (ja) * 1996-02-23 1997-09-05 Sanyo Electric Co Ltd 空気調和機の室外ユニット
JP2008292068A (ja) * 2007-05-25 2008-12-04 Fujitsu General Ltd 空気調和機の室外機

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Publication number Priority date Publication date Assignee Title
JP2021156493A (ja) * 2020-03-27 2021-10-07 株式会社富士通ゼネラル 空気調和機の室外機
CN113983564A (zh) * 2021-11-09 2022-01-28 四川长虹空调有限公司 一种空调室外机机壳及其空调器
WO2025150180A1 (fr) * 2024-01-12 2025-07-17 三菱電機株式会社 Unité extérieure et dispositif à cycle de réfrigération

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