WO2021079452A1 - 空気調和機の室内機 - Google Patents

空気調和機の室内機 Download PDF

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Publication number
WO2021079452A1
WO2021079452A1 PCT/JP2019/041650 JP2019041650W WO2021079452A1 WO 2021079452 A1 WO2021079452 A1 WO 2021079452A1 JP 2019041650 W JP2019041650 W JP 2019041650W WO 2021079452 A1 WO2021079452 A1 WO 2021079452A1
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WIPO (PCT)
Prior art keywords
pipe
indoor unit
auxiliary pipe
auxiliary
piping structure
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/JP2019/041650
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English (en)
French (fr)
Japanese (ja)
Inventor
隆弘 小松
尚也 松永
川村　武志
悠太 相羽
勝也 石神
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.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to PCT/JP2019/041650 priority Critical patent/WO2021079452A1/ja
Priority to DE112019007837.2T priority patent/DE112019007837T5/de
Priority to JP2021553222A priority patent/JPWO2021079452A1/ja
Publication of WO2021079452A1 publication Critical patent/WO2021079452A1/ja
Anticipated expiration legal-status Critical
Ceased 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
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0068—Indoor units, e.g. fan coil units characterised by the arrangement of refrigerant piping outside the heat exchanger within the unit casing
    • 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
    • F24F1/26—Refrigerant piping
    • F24F1/32—Refrigerant piping for connecting the separate outdoor units to indoor units

Definitions

  • the present invention relates to an indoor unit of an air conditioner provided with a piping structure connected to a heat exchanger.
  • the indoor unit of an air conditioner constitutes, for example, an air conditioner together with an outdoor unit installed outdoors, and is attached to an indoor wall or the like to air-condition the room.
  • the indoor unit of the air conditioner is provided with an indoor heat exchanger and a piping structure portion connected to the indoor heat exchanger inside a casing forming an outer shell.
  • the piping structure portion is provided to connect the indoor heat exchanger and the connecting pipe connected to the outdoor unit. The position of the pipe structure is appropriately adjusted according to the installation location of the connecting pipe.
  • the air conditioner disclosed in Patent Document 1 has an inlet pipe and an outlet pipe extending in the vertical direction in which one end side is connected to a heat exchanger and one end side on the other end side of the inlet pipe and the outlet pipe as a piping structure portion. It is provided with a pair of connected L-shaped auxiliary pipes.
  • a connection pipe connected to the outdoor unit is connected to the other end side of the auxiliary pipe.
  • Union fittings are attached to the ends of the inlet and outlet pipes.
  • the auxiliary pipe is equipped with a flare nut facing the union joint attached to the inlet pipe and the outlet pipe on one end side. By loosening the tightened state of the flare nut, the auxiliary pipe can be rotated around the axis of the inlet pipe and the outlet pipe in the vertical direction, and the positions of the connecting pipes can be adjusted.
  • the indoor unit of the air conditioner may connect the connection pipe and the heat exchanger using an existing wall hole located below the indoor unit.
  • the auxiliary pipe can be rotated only around the axes of the inlet pipe and the outlet pipe arranged in the vertical direction. That is, the auxiliary pipe can be oriented only on the left side surface side, the right side surface side, and the back surface side of the indoor unit to be connected to the connection pipe. Therefore, in this air conditioner, when connecting the connection pipe and the heat exchanger using the existing wall hole located below the indoor unit, the auxiliary pipe is forcibly bent with a tool or the like. However, the workability of the pipe connection work is poor, and the heat exchange performance is deteriorated depending on the degree of twisting of the pipe, which may deteriorate the quality.
  • the present invention has been made to solve the above-mentioned problems, and is an air conditioner provided with a piping structure that can improve the workability of piping connection work and suppress deterioration of quality.
  • the purpose is to provide an indoor unit.
  • the indoor unit of the air conditioner according to the present invention has a casing forming an outer shell, a heat exchanger provided inside the casing, and a piping structure portion connected to the heat exchanger.
  • the piping structure is detachably connected to the indoor unit piping provided inside the casing and having one end connected to the heat exchanger, and one end to the other end of the indoor unit piping, and can be removed as necessary.
  • one end side is detachably connected to the other end side of the first auxiliary pipe or the other end side of the indoor unit pipe to the L-shaped first auxiliary pipe whose position can be freely adjusted by rotating.
  • the indoor unit pipe is provided with a linear second auxiliary pipe whose position can be freely adjusted by rotating the first auxiliary pipe while being removed or connected to the first auxiliary pipe as needed.
  • the first auxiliary pipe is connected to the first auxiliary pipe
  • the second auxiliary pipe is connected to the first auxiliary pipe, or the second auxiliary pipe is connected to the indoor unit pipe. , It is configured to be freely deformable.
  • the piping structure portion can be freely transformed into the first piping structure or the second piping structure, any of the ones arranged on the left side surface side, the right side surface side, the back surface side, and the lower surface side of the casing. It can be easily adapted to connecting piping. Therefore, the workability of the pipe connection work can be improved. Further, since it is not necessary to bend the pipe using a tool or the like and the pipe is not twisted, deterioration of heat exchange performance can be suppressed and the quality is excellent.
  • FIG. 1 It is a perspective view which showed the indoor unit of the air conditioner which concerns on embodiment from the front side. It is a perspective view which showed the internal structure of the indoor unit of the air conditioner which concerns on embodiment from the back side. It is a rear view which showed the internal structure of the indoor unit of the air conditioner which concerns on embodiment. It is a rear view which is the internal structure of the indoor unit of the air conditioner which concerns on embodiment, and shows the state which connected the outdoor unit and the connection pipe in the piping structure part. It is an exploded perspective view which showed the piping structure part of the indoor unit of the air conditioner which concerns on embodiment.
  • FIG. 1 It is a perspective view which showed the indoor unit of the air conditioner which concerns on embodiment from the front side. It is a perspective view which showed the internal structure of the indoor unit of the air conditioner which concerns on embodiment from the back side. It is a rear view which showed the internal structure of the indoor unit of the air conditioner which concerns on embodiment. It is a rear view which is the internal structure of the indoor unit of the air conditioner which concerns on embodiment
  • FIG. 5 is an exploded perspective view showing a state in which a heat insulating material is attached to each pipe constituting the pipe structure portion of the indoor unit of the air conditioner according to the embodiment. It is an exploded perspective view which showed the piping structure part of the indoor unit of the air conditioner which concerns on embodiment. It is a rear view which showed one form of the 1st piping structure in the piping structure part of the indoor unit of the air conditioner which concerns on embodiment. It is a rear view which showed one form of the 1st piping structure in the piping structure part of the indoor unit of the air conditioner which concerns on embodiment. It is a rear view which showed the 2nd piping structure in the piping structure part of the indoor unit of the air conditioner which concerns on embodiment.
  • FIG. 1 is a perspective view showing the indoor unit of the air conditioner according to the embodiment from the front side.
  • FIG. 2 is a perspective view showing the internal structure of the indoor unit of the air conditioner according to the embodiment from the rear side.
  • FIG. 3 is a rear view showing the internal structure of the indoor unit of the air conditioner according to the embodiment.
  • FIG. 4 is a rear view showing the internal structure of the indoor unit of the air conditioner according to the embodiment, showing a state in which the outdoor unit and the connecting pipe are connected by the piping structure portion.
  • the indoor unit 100 of the air conditioner according to the present embodiment constitutes, for example, an air conditioner together with an outdoor unit (not shown) installed outdoors, and is attached to an indoor wall or the like to air-condition the room. is there.
  • the indoor unit 100 and the outdoor unit are connected by a connecting pipe through which a heat medium such as a refrigerant or water passes to form a refrigeration cycle circuit.
  • the indoor unit 100 includes a casing 1, a heat exchanger 2, and a piping structure portion 3.
  • the heat exchanger 2 is shown in FIG.
  • the casing 1 has a configuration in which a rear case 10 and a front case 11 are combined to form a horizontally long substantially rectangular parallelepiped box shape.
  • a heat exchanger 2 Inside the casing 1, a heat exchanger 2, a blower (not shown), an electric component box (not shown), a drain pan (not shown), a piping structure 3, and the like are housed.
  • the back case 10 constitutes the back side of the casing 1.
  • the outer surface side of the back case 10 is attached to the installation plate 101 fixed to the wall surface of the room.
  • a heat exchanger 2, a blower, an electric component box, a drain pan, and the like are attached to the inner surface side of the back case 10.
  • the back case 10 has a shape in which the lower portion is recessed inward of the casing 1.
  • the recessed portion of the back case 10 serves as the pipe storage portion 12 for accommodating the pipe structure portion 3.
  • the front case 11 constitutes the front side of the casing 1.
  • the front case 11 is attached to the back case 10 by a joining member such as a screw.
  • a suction port 11a for taking in indoor air is formed on the upper surface of the front case 11.
  • the suction port 11a is covered with a filter that collects dust in the air-conditioned space.
  • an air outlet 11b extending in the left-right direction is formed in the lower portion of the front case 11.
  • the air outlet 11b is provided with a wind direction adjusting plate for adjusting the vertical wind direction of the blown air.
  • the heat exchanger 2 exchanges heat between the indoor air sucked by the blower and the refrigerant, and supplies the air after the heat exchange to the room.
  • the heat exchanger 2 functions as an evaporator to cool the air during the cooling operation, and functions as a condenser (radiator) to heat the air during the heating operation.
  • the heat exchanger 2 is, for example, a plate fin and tube type heat exchanger capable of exchanging heat between the refrigerant flowing through the refrigerant pipe and the air passing through the fins.
  • the blower sucks indoor air from the suction port 11a and blows out conditioned air from the air outlet 11b.
  • the blower is mounted on the rear case 10, is an air passage from the suction port 11a to the air outlet 11b, and is provided on the downstream side of the heat exchanger 2.
  • the blower may be composed of, for example, a cross flow fan.
  • the electrical component box contains a control device or the like that controls the indoor unit 100, and is mounted on the rear case 10.
  • the control device is composed of, for example, a microprocessor unit or the like.
  • the drain pan is arranged below the heat exchanger 2 and is provided to receive the drain water generated during the operation of the indoor unit 100.
  • the pipe structure portion 3 is arranged between the heat exchanger 2 and the connecting pipe 7 connected to the outdoor unit, and is provided to connect the heat exchanger 2 and the connecting pipe 7.
  • the pipe structure portion 3 includes an indoor unit pipe 4, a first auxiliary pipe 5, and a second auxiliary pipe 6.
  • the pipe structure portion 3 is composed of a pair of liquid pipes.
  • the pipe structure portion 3 is composed of a gas pipe and a liquid pipe when the heat medium is a refrigerant.
  • FIG. 5 is an exploded perspective view showing a piping structure portion of the indoor unit of the air conditioner according to the embodiment.
  • FIG. 6 is an exploded perspective view showing a state in which a heat insulating material is attached to each pipe constituting the pipe structure portion of the indoor unit of the air conditioner according to the embodiment.
  • the indoor unit pipe 4 is a linear pipe and is provided inside the casing 1.
  • the indoor unit piping 4 is composed of a pair.
  • the pair of indoor unit pipes 4 are both composed of liquid pipes, and when the heat medium is a refrigerant, they are composed of a gas pipe and a liquid pipe.
  • One end of the indoor unit pipe 4 is connected to the heat exchanger 2, and the other end is connected to the first auxiliary pipe 5.
  • the indoor unit pipe 4 is provided substantially vertically downward from the heat exchanger 2.
  • the indoor unit pipe 4 is usually covered with a heat insulating material 40 made of, for example, expanded styrene.
  • the first auxiliary pipe 5 is an L-shaped pipe as shown in FIGS. 2 to 5.
  • the first auxiliary pipe 5 is composed of a pair.
  • the pair of first auxiliary pipes 5 are both composed of a liquid pipe when the heat medium is water, and are composed of a gas pipe and a liquid pipe when the heat medium is a refrigerant, for example.
  • the liquid pipes corresponding to the case where the heat medium is water are connected to the first auxiliary pipe 5 and the indoor unit pipe 4.
  • the gas pipes are connected to each other and the liquid pipes are connected to each other.
  • the outer peripheral surface of the first auxiliary pipe 5 is usually covered with a heat insulating material 50 made of, for example, expanded styrene.
  • the piping structure portion 3 has a first flare connecting portion 30 that connects the indoor unit piping 4 and the first auxiliary piping 5.
  • the first flare connection portion 30 is, for example, a flare joint union 30a fixed to the connection portion of the indoor unit pipe 4, and a trumpet-shaped flare portion (shown) at the connection portion of the first auxiliary pipe 5. (Omitted) is formed, and the flare nut 30b is attached so as to surround the flare portion.
  • the indoor unit pipe 4 and the first auxiliary pipe 5 are connected by screw-bonding the union 30a and the flare nut 30b of the flare joint.
  • the second auxiliary pipe 6 is a linear pipe as shown in FIGS. 2 to 5.
  • the second auxiliary pipe 6 is composed of a pair.
  • the pair of second auxiliary pipes 6 are both composed of a liquid pipe when the heat medium is water, and are composed of a gas pipe and a liquid pipe when the heat medium is a refrigerant, for example.
  • the liquid pipes corresponding to the case where the heat medium is water are connected to each other.
  • the gas pipes are connected to each other and the liquid pipes are connected to each other.
  • the second auxiliary pipe 6 is usually covered with a heat insulating material 60 made of, for example, expanded styrene.
  • the pipe structure portion 3 has a second flare connecting portion 31 that connects the first auxiliary pipe 5 and the second auxiliary pipe 6.
  • the second flare connection portion 31 is, for example, a flare joint union 31a fixed to the connection portion of the first auxiliary pipe 5, and a trumpet-shaped flare portion (to the connection portion of the second auxiliary pipe 6). (Not shown) is formed, and the flare nut 31b is attached so as to surround the flare portion.
  • the first auxiliary pipe 5 and the second auxiliary pipe 6 are connected by screw-bonding the union 31a and the flare nut 31b of the flare joint.
  • FIG. 7 is an exploded perspective view showing the piping structure portion of the indoor unit of the air conditioner according to the embodiment.
  • the second auxiliary pipe 6 can be detachably connected to the other end side of the indoor unit pipe 4 on one end side.
  • the liquid pipes corresponding to the case where the heat medium is water are connected to the second auxiliary pipe 6 and the indoor unit pipe 4.
  • the gas pipes are connected to each other and the liquid pipes are connected to each other.
  • the piping structure portion 3 has a third flare connecting portion 32 that connects the indoor unit piping 4 and the second auxiliary piping 6.
  • a flare joint union 30a is fixed to the connection portion of the indoor unit pipe 4, and a trumpet-shaped flare portion (not shown) is formed at the connection portion of the second auxiliary pipe 6, and flare is formed.
  • the flare nut 31b is attached so as to surround the periphery of the portion.
  • the indoor unit pipe 4 and the second auxiliary pipe 6 are connected by screw-bonding the union 30a of the flare joint and the flare nut 31b.
  • the pipe structure portion 3 has a fourth flare connecting portion 33 that connects the second auxiliary pipe 6 and the connecting pipe 7.
  • a flare joint union 33a is fixed to the connection portion of the second auxiliary pipe 6, a trumpet-shaped flare portion (not shown) is formed at the connection portion of the connection pipe 7, and the flare portion is formed.
  • the flare nut 33b is attached so as to surround the periphery of the.
  • the second auxiliary pipe 6 and the connecting pipe 7 are connected by screw-bonding the union 33a of the flare joint and the flare nut 33b.
  • the connection between 6 and the connection pipe 7 is not limited to the flare connection by the flare structure portion described above.
  • the connection of the pipes may be, for example, a one-touch type joint structure or the like, or may be another joint structure. In short, any form may be used as long as the pipes can be connected to each other.
  • the unions (30a, 31a, 33a) and flare nuts (30b, 31b, 33b) constituting the flare structure (30, 31, 32, 33) have the same shape when the heat medium is water. Therefore, they can all have the same shape and size.
  • the union (30a, 31a, 33a) and the flare nut (30b, 31b, 33b) constituting the flare structure (30, 31, 32, 33) have a gas pipe and a liquid pipe. Will use different sizes.
  • the first auxiliary pipe 5 is connected to the indoor unit pipe 4, and the second auxiliary pipe 6 is connected to the first auxiliary pipe 5.
  • This configuration is used as the first piping structure.
  • a configuration in which the second auxiliary pipe 6 is connected to the indoor unit pipe 4 has a second pipe structure.
  • the indoor unit 100 of the air conditioner according to the present embodiment is configured so that the first piping structure and the second piping structure can be freely deformed.
  • 8 and 9 are rear views showing one form of the first piping structure in the piping structure portion of the indoor unit of the air conditioner according to the embodiment.
  • the first piping structure of the piping structure portion 3 has three forms shown in FIGS. 4, 8 and 9.
  • the first form of the first piping structure shown in FIG. 4 is a configuration in which the connecting pipe 7 and the piping structure portion 3 are connected by using an existing wall hole located on the left side surface side of the casing 1.
  • the front case 11 is formed with a pipe passage port for passing the connection pipe 7 into the inside of the casing 1.
  • the piping passage is formed by, for example, cutting the lower left corner of the front case 11 with a cutting tool such as nippers.
  • the first auxiliary piping 5 and the second auxiliary piping 6 are housed in a pipe storage portion 12 formed inside the casing 1.
  • the first auxiliary pipe 5 and the second auxiliary pipe 6 are shipped in a state of being stored in the pipe storage portion 12 of the casing 1, for example, in the manufacturing process in a factory, and then transported to the installation location. At this time, for example, in the manufacturing process, the first auxiliary pipe 5 is connected to the indoor unit pipe 4, the second auxiliary pipe 6 is connected to the first auxiliary pipe 5, and the first auxiliary pipe 5 and the second auxiliary pipe 6 are connected. It is preferable to ship the product in a state of being stored in the pipe storage unit 12. Since the connection work is completed only by flaring the second auxiliary pipe 6 and the connection pipe 7 at the transported installation location, the labor of the installation work can be saved and the workability can be improved.
  • the indoor unit pipe 4, the first auxiliary pipe 5, and the second auxiliary pipe 6 are not connected to each other, and the first auxiliary pipe 5 and the second auxiliary pipe 6 are independently connected to the pipe storage portion of the casing 1.
  • the indoor unit pipe 4 and the first auxiliary pipe 5 are flared connected, and the first auxiliary pipe 5 and the second auxiliary pipe 6 are flared connected after being transported to the installation location. ..
  • the second auxiliary pipe 6 and the connecting pipe 7 are flared connected.
  • the first auxiliary pipe 5 and the second auxiliary pipe 6 may not be stored in the pipe storage portion 12 of the casing 1 at the time of shipment, but may be transported to the installation location as separate members.
  • the indoor unit pipe 4 and the first auxiliary pipe 5 are flared connected, and the first auxiliary pipe 5 and the second auxiliary pipe 6 are flared connected at the installation location.
  • the second form of the first piping structure shown in FIG. 8 is a configuration in which the connecting pipe 7 and the piping structure portion 3 are connected by using an existing wall hole located on the right side surface side of the casing 1. ..
  • the front case 11 is formed with a pipe passage port for passing the first auxiliary pipe 5 to the outside of the casing 1.
  • the piping passage is formed by, for example, cutting the lower right corner of the front case 11 with a cutting tool such as nippers.
  • One end of the first auxiliary pipe 5 is connected to the indoor unit pipe 4, and the other end is arranged outside the casing 1.
  • the second auxiliary pipe 6 is arranged outside the casing 1, one end thereof is connected to the first auxiliary pipe 5, and the other end is connected to the connection pipe 7.
  • the first auxiliary pipe 5 is connected to the indoor unit pipe 4, the second auxiliary pipe 6 is connected to the first auxiliary pipe 5, and the first auxiliary pipe 5 and the second auxiliary pipe 6 are connected to each other. It may be shipped in a state of being stored in the storage unit 12 and then transported to the installation location. In this case, loosen the flare nut 30b of the first flare connecting portion 30, rotate the first auxiliary pipe 5 together with the second auxiliary pipe 6 by about 180 degrees, and connect the first auxiliary pipe 5 and the second auxiliary pipe 6. It is arranged on the right side of the casing 1. Then, after rotating the first auxiliary pipe 5 and the second auxiliary pipe 6, the loosened flare nut 30b is fastened again. Finally, the second auxiliary pipe 6 and the connecting pipe 7 are flared connected.
  • the indoor unit pipe 4, the first auxiliary pipe 5, and the second auxiliary pipe 6 are not connected to each other, and the first auxiliary pipe 5 and the second auxiliary pipe 6 are independently connected to the pipe storage portion of the casing 1.
  • the indoor unit pipe 4 and the first auxiliary pipe 5 are flared connected, and the first auxiliary pipe 5 and the second auxiliary pipe 6 are flared connected after being transported to the installation location. .. Then, the second auxiliary pipe 6 and the connecting pipe 7 are flared connected.
  • first auxiliary pipe 5 and the second auxiliary pipe 6 are connected outside the casing 1, they may be connected inside the casing 1.
  • the configuration in which the second auxiliary pipe 6 and the connecting pipe 7 are connected outside the casing 1 is shown, they may be connected inside the casing 1.
  • the third form of the first piping structure shown in FIG. 9 is a configuration in which the connecting pipe 7 and the piping structure portion 3 are connected by using an existing wall hole located on the back side of the casing 1.
  • One end of the first auxiliary pipe 5 is connected to the indoor unit pipe 4, and the other end is arranged outside the casing 1.
  • the second auxiliary pipe 6 is arranged outside the casing 1, one end thereof is connected to the first auxiliary pipe 5, and the other end is connected to the connection pipe 7.
  • the first auxiliary pipe 5 is connected to the indoor unit pipe 4, the second auxiliary pipe 6 is connected to the first auxiliary pipe 5, and the first auxiliary pipe 5 and the second auxiliary pipe 6 are connected to each other. It may be shipped in a state of being stored in the storage unit 12 and then transported to the installation location. In this case, loosen the flare nut 30b of the first flare connecting portion 30, rotate the first auxiliary pipe 5 together with the second auxiliary pipe 6 by about 90 degrees, and connect the first auxiliary pipe 5 and the second auxiliary pipe 6. It is arranged on the back side of the casing 1. Then, after rotating the first auxiliary pipe 5 and the second auxiliary pipe 6, the loosened flare nut 30b is fastened again. Finally, the second auxiliary pipe 6 and the connecting pipe 7 are flared connected.
  • the indoor unit pipe 4, the first auxiliary pipe 5, and the second auxiliary pipe 6 are not connected to each other, and the first auxiliary pipe 5 and the second auxiliary pipe 6 are independently connected to the pipe storage portion of the casing 1.
  • the indoor unit pipe 4 and the first auxiliary pipe 5 are flared connected, and the first auxiliary pipe 5 and the second auxiliary pipe 6 are flared connected after being transported to the installation location. .. Then, the second auxiliary pipe 6 and the connecting pipe 7 are flared connected.
  • FIG. 10 is a rear view showing a second piping structure in the piping structure portion of the indoor unit of the air conditioner according to the embodiment.
  • the second pipe structure of the pipe structure portion 3 shown in FIG. 10 has a configuration in which the connection pipe 7 and the heat exchanger 2 are connected by using an existing wall hole located on the lower surface side of the casing 1.
  • the front case 11 is formed with a pipe passage port for passing the second auxiliary pipe 6 to the outside of the casing 1.
  • the piping passage is formed by, for example, cutting the lower surface of the front case 11 with a cutting tool such as nippers.
  • One end of the second auxiliary pipe 6 is flared-connected to the indoor unit pipe 4, and the other end is arranged outside the casing 1 and flared-connected to the connecting pipe 7.
  • the first auxiliary pipe 5 is connected to the indoor unit pipe 4, the second auxiliary pipe 6 is connected to the first auxiliary pipe 5, and the first auxiliary pipe 5 and the second auxiliary pipe 6 are connected to each other. It may be shipped in a state of being stored in the storage unit 12 and then transported to the installation location. In this case, the connection state of the first flare connection portion 30 is released, the first auxiliary pipe 5 is removed from the indoor unit pipe 4, the connection state of the second flare connection portion 31 is released, and the first auxiliary pipe 5 is released. Remove the second auxiliary pipe 6. Then, one end of the second auxiliary pipe 6 is flared-connected to the indoor unit pipe 4, and the other end is flared-connected to the connecting pipe 7.
  • the indoor unit pipe 4, the first auxiliary pipe 5, and the second auxiliary pipe 6 are not connected to each other, and the first auxiliary pipe 5 and the second auxiliary pipe 6 are independently connected to the pipe storage portion of the casing 1.
  • the indoor unit pipe 4 and the second auxiliary pipe 6 are flared connected, and the second auxiliary pipe 6 and the connecting pipe 7 are flared connected after being transported to the installation location.
  • the indoor unit 100 of the air conditioner according to the present embodiment is connected to the casing 1 forming the outer shell, the heat exchanger 2 provided inside the casing 1, and the heat exchanger 2. It has a piping structure portion 3.
  • the piping structure 3 is detachably connected to the indoor unit piping 4 provided inside the casing 1 and having one end connected to the heat exchanger 2 and one end to the other end of the indoor unit piping 4, if necessary.
  • One end side can be detachably attached to the other end side of the L-shaped first auxiliary pipe 5 and the first auxiliary pipe 5 or the other end side of the indoor unit pipe 4 whose position can be freely adjusted by removing or rotating the pipe.
  • a linear second auxiliary pipe 6 whose position can be freely adjusted by rotating the first auxiliary pipe 5 while being connected and removed or connected to the first auxiliary pipe 5 as necessary is provided.
  • the first auxiliary pipe 5 is connected to the indoor unit pipe 4
  • the second auxiliary pipe 6 is connected to the first auxiliary pipe 5, or the second auxiliary pipe is connected to the indoor unit pipe 4.
  • the second piping structure to which 6 is connected is freely deformable.
  • the piping structure portion 3 can be freely transformed into the first piping structure or the second piping structure, so that the left side surface side and the right side surface of the casing 1 can be freely transformed.
  • Any of the connecting pipes 7 arranged on the side, the back side, and the lower surface side can be easily adapted. Therefore, the workability of the pipe connection work can be improved. Further, since it is not necessary to bend the pipe using a tool or the like and the pipe is not twisted, deterioration of heat exchange performance can be suppressed and the quality is excellent.
  • a pipe storage portion 12 for accommodating the pipe structure portion 3 is provided on the back side of the casing 1.
  • the first auxiliary pipe 5 and the second auxiliary pipe 6 are provided in the pipe storage portion 12 so as to be retractable. Therefore, when the first auxiliary pipe 5 and the second auxiliary pipe 6 can be stored in the pipe storage portion 12 when the first auxiliary pipe 5 and the second auxiliary pipe 6 are installed on a wall or the like in the room, the first auxiliary pipe 5 and the second auxiliary pipe 6 are indoor units. It does not interfere with the installation of 100, and the appearance of the installed state is also improved.
  • the piping structure portion 3 is a first flare connecting portion 30 that connects the indoor unit piping 4 and the first auxiliary piping 5, and a second flare connecting portion that connects the first auxiliary piping 5 and the second auxiliary piping 6. It has a 31 and a third flare connecting portion 32 that connects the indoor unit pipe 4 and the second auxiliary pipe 6. Therefore, in the indoor unit 100 of the air conditioner according to the present embodiment, the position of the first auxiliary pipe 5 or the second auxiliary pipe 6 can be freely adjusted only by loosening the flare nut constituting the flare connection portion. It is possible to improve the workability of the pipe connection work.
  • the indoor unit 100 of the air conditioner has been described above based on the embodiment, the indoor unit 100 of the air conditioner is not limited to the configuration of the above-described embodiment.
  • the indoor unit 100 of the air conditioner is not limited to the above-mentioned contents, and may include other components.
  • the indoor unit 100 of an air conditioner includes a range of design changes and application variations normally performed by those skilled in the art within a range that does not deviate from the technical idea thereof.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)
PCT/JP2019/041650 2019-10-24 2019-10-24 空気調和機の室内機 Ceased WO2021079452A1 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
PCT/JP2019/041650 WO2021079452A1 (ja) 2019-10-24 2019-10-24 空気調和機の室内機
DE112019007837.2T DE112019007837T5 (de) 2019-10-24 2019-10-24 Inneneinheit einer Klimaanlage
JP2021553222A JPWO2021079452A1 (https=) 2019-10-24 2019-10-24

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Application Number Priority Date Filing Date Title
PCT/JP2019/041650 WO2021079452A1 (ja) 2019-10-24 2019-10-24 空気調和機の室内機

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WO2023053553A1 (ja) * 2021-09-30 2023-04-06 ダイキン工業株式会社 室内機および空気調和機
JP2023051210A (ja) * 2021-09-30 2023-04-11 ダイキン工業株式会社 室内機および空気調和機
JP2023171844A (ja) * 2021-09-30 2023-12-05 ダイキン工業株式会社 室内機および空気調和機
JP7410418B2 (ja) 2021-09-30 2024-01-10 ダイキン工業株式会社 室内機および空気調和機
JP7453596B2 (ja) 2021-09-30 2024-03-21 ダイキン工業株式会社 室内機および空気調和機

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