WO2021064845A1 - 冷凍サイクル装置 - Google Patents

冷凍サイクル装置 Download PDF

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Publication number
WO2021064845A1
WO2021064845A1 PCT/JP2019/038682 JP2019038682W WO2021064845A1 WO 2021064845 A1 WO2021064845 A1 WO 2021064845A1 JP 2019038682 W JP2019038682 W JP 2019038682W WO 2021064845 A1 WO2021064845 A1 WO 2021064845A1
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WO
WIPO (PCT)
Prior art keywords
refrigerant pipe
cushioning material
outdoor unit
valve
bottom panel
Prior art date
Application number
PCT/JP2019/038682
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English (en)
French (fr)
Japanese (ja)
Inventor
未世 高橋
賢太郎 米原
Original Assignee
三菱電機株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to JP2021550796A priority Critical patent/JPWO2021064845A1/ja
Priority to PCT/JP2019/038682 priority patent/WO2021064845A1/ja
Publication of WO2021064845A1 publication Critical patent/WO2021064845A1/ja

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • F24F1/26—Refrigerant piping
    • F24F1/34—Protection means thereof, e.g. covers for refrigerant pipes

Definitions

  • the present invention relates to a refrigeration cycle device having a valve constituting a refrigerant circuit.
  • Patent Document 1 discloses a refrigeration cycle device provided with a stopper capable of suppressing the movement of the valve due to an external force such as vibration.
  • the movement of the valve is suppressed by the stopper, so that the movement of the refrigerant pipe is suppressed, and the refrigerant pipe is prevented from coming into contact with the bottom surface of the housing and being damaged.
  • the stopper is arranged at a position where it can be directly or indirectly connected to the housing. Be restricted. Therefore, in the refrigeration cycle apparatus of Patent Document 1, the arrangement of valves is also restricted along with the restriction of the arrangement of stoppers, so that there is a problem that the degree of freedom in designing the refrigeration cycle apparatus is reduced.
  • An object of the present invention is to solve the above-mentioned problems, and to provide a refrigeration cycle device capable of suppressing damage to a refrigerant pipe due to valve movement while maintaining the degree of freedom in designing the refrigeration cycle device. To do.
  • the refrigerating cycle device of the present invention includes a housing, a refrigerant pipe housed in the housing, a valve connected to the refrigerant pipe and communicated with the flow path of the refrigerant pipe, and a buffer material covering the refrigerant pipe.
  • the refrigerant pipe is arranged between the valve and the bottom surface of the housing, and the lower end of the cushioning material is located between the lower end of the refrigerant pipe and the bottom surface.
  • the valve moves due to an external force such as vibration, and the refrigerant pipe moves toward the bottom surface. Even in this case, the lower end of the cushioning material comes into contact with the bottom surface before the refrigerant pipe. Therefore, according to the above configuration, it is possible to prevent the refrigerant pipe from coming into contact with the bottom surface, so that damage to the refrigerant pipe can be suppressed. Further, in the above configuration, since it is not necessary to provide the valve with a movement restricting member such as a stopper, the degree of freedom in the arrangement position of the valve can be maintained. Therefore, according to the above configuration, it is possible to provide a refrigeration cycle device capable of suppressing damage to the refrigerant pipe due to the movement of the valve while maintaining the degree of freedom in the arrangement position of the valve.
  • FIG. FIG. 5 is an enlarged view schematically showing a valve and a refrigerant pipe connected to the valve in the outdoor unit of the air conditioner according to the first embodiment. It is a perspective view which showed the cushioning material which covers the refrigerant pipe in the outdoor unit of the air conditioner which concerns on Embodiment 1.
  • FIG. 4 is a schematic view of FIG. 4 as viewed from the AA direction.
  • FIG. It is the schematic which shows an example of the cushioning material used in the outdoor unit of the air conditioner of Embodiment 1.
  • FIG. It is a perspective view which showed the cushioning material which covers the refrigerant pipe in the outdoor unit of the air conditioner which concerns on Embodiment 2.
  • FIG. It is a top view which showed an example of the structure of the bottom panel in the outdoor unit of the air conditioner which concerns on Embodiment 3.
  • FIG. It is an enlarged schematic view of a part of the bottom panel of FIG.
  • FIG. 1 is an exploded perspective view showing an example of the structure of the outdoor unit 100 of the air conditioner according to the first embodiment.
  • the outdoor unit 100 is connected to, for example, an indoor unit or an external unit such as a repeater connected to the indoor unit via an extension pipe such as a local pipe.
  • the outdoor unit 100 is a floor-standing unit in FIG. 1, it may be a wall-mounted unit, a roof-mounted unit, or a ceiling-mounted unit, for example.
  • each component of the outdoor unit 100 may differ from the actual ones. Further, in the following drawings including FIG. 1, the same members or parts or similar members or parts are designated by the same reference numerals or omitted. Further, the positional relationship between the constituent members of the outdoor unit 100, for example, the positional relationship such as up / down, left / right, front / rear, etc., is, in principle, the positional relationship when the outdoor unit 100 of the air conditioner is installed in a usable state. To do.
  • the outdoor unit 100 has a front panel 1, a side panel 2, a top panel 3, and a bottom panel 4.
  • the front panel 1, the side panel 2, the top panel 3, and the bottom panel 4 constitute the housing of the outdoor unit 100.
  • a partition plate 5 is installed inside the housing of the outdoor unit 100.
  • the internal space of the outdoor unit 100 is divided into a blower room 6 and a machine room 7 by a partition plate 5.
  • the front panel 1 is a sheet metal panel having a first side surface portion 1a forming the front surface of the housing of the outdoor unit 100 and a second side surface portion 1b forming the left side surface of the housing of the outdoor unit 100.
  • the front panel 1 is attached to the bottom panel 4 by screwing or the like.
  • the first side surface portion 1a has an exhaust port 1a1 that communicates between the external space on the front side of the outdoor unit 100 and the blower chamber 6. Further, the first side surface portion 1a is arranged on the outer surface of the first side surface portion 1a, and has a grille 1a2 covering the exhaust port 1a1 and a peripheral surface protruding from the peripheral edge portion of the exhaust port 1a1 toward the blower chamber 6 side. It has 1a3 and.
  • the second side surface portion 1b has a plurality of vents 1b1 communicating between the external space on the left side side of the outdoor unit 100 and the blower chamber 6.
  • the side panel 2 has a third side surface portion 2a forming the right side surface of the housing of the outdoor unit 100 and a fourth side surface portion 2b forming the right rear surface of the housing of the outdoor unit 100.
  • the side panel 2 is attached to the front panel 1, for example, by providing a hole 2a1 at the front end of the third side surface portion 2a and fitting it with a claw 1a4 provided at the right end of the first side surface portion 1a of the front panel 1. Further, the side panel 2 is attached to the bottom panel 4 by screwing or the like.
  • the third side surface portion 2a has one or more openings, and for example, a closing valve 27, which will be described later, protrudes from the openings.
  • An extension pipe connected to the indoor unit is connected to the shutoff valve 27.
  • the side panel 2 has a removable protective cover 8 that covers the opening of the third side surface portion 2a.
  • the protective cover 8 is attached to the side panel 2 to prevent dust and water from entering the outdoor unit 100. Further, by removing the protective cover 8 from the side panel 2, it is possible to access the inside of the outdoor unit 100 at the time of maintenance and inspection.
  • the protective cover 8 has one or more openings. For example, a plug connected to an external power source or an extension pipe connected to an indoor unit is connected to the outdoor unit through the opening. It is drawn into the inside of 100.
  • the top panel 3 is a sheet metal panel that constitutes the upper surface of the housing of the outdoor unit 100.
  • the top panel 3 is attached to the front panel 1 and the side panel 2 by screwing or the like.
  • the bottom panel 4 is a base plate that constitutes the bottom surface of the housing of the outdoor unit 100 and supports each component housed inside the outdoor unit 100.
  • the bottom panel 4 has a plurality of legs 9. Each of the plurality of legs 9 has mounting holes 9a for fixing the outdoor unit 100 to the installation location.
  • the outdoor unit 100 is fixed to a concrete block or the like via a mounting hole 9a by, for example, screwing.
  • the partition plate 5 is arranged in parallel with the second side surface portion 1b of the front panel 1 and the third side surface portion 2a of the side panel 2, and blows the internal space between the second side surface portion 1b and the third side surface portion 2a. It is a plate-shaped member that divides the chamber 6 and the machine chamber 7.
  • the partition plate 5 is fixed to the bottom panel 4 by, for example, screwing.
  • the blower room 6 is a space surrounded by a front panel 1, a top panel 3, a bottom panel 4, and a partition plate 5.
  • the blower chamber 6 accommodates the heat exchanger 11, the blower fan 13, the motor 15 that drives the blower fan 13, and the motor mount 17 that supports the motor 15.
  • the air outside the outdoor unit 100 is blown from the outside of the outdoor unit 100 through the heat exchanger 11 or the plurality of vents 1b1 provided on the second side surface portion 1b of the front panel 1. It is taken into the inside of the chamber 6. Further, due to the rotation of the blower fan 13, the air inside the outdoor unit 100 is exhausted to the outside of the outdoor unit 100 via the bell mouth 1a3, the exhaust port 1a1, and the grill 1a2.
  • the heat exchanger 11 is mounted on the bottom panel 4. Further, the heat exchanger 11 is fixed to the left end portion of the fourth side surface portion 2b of the side panel 2 by screwing or the like, and constitutes a part of the outer shell of the outdoor unit 100.
  • the heat exchanger 11 is a heat transfer device that transfers and exchanges heat energy between two fluids having different heat energies. As shown in FIG. 1, the heat exchanger 11 is an air-cooled heat exchanger that exchanges heat between an air flow passing through the heat exchanger 11 and a refrigerant flowing inside the heat exchanger 11.
  • a fin-and-tube type heat exchanger including a plurality of plate-shaped fins arranged in parallel and a plurality of heat transfer tubes penetrating the plurality of plate-shaped fins is used.
  • the heat exchanger 11 is a fin-and-tube type heat exchanger, the heat exchanger 11 is placed on the bottom panel 4 so that a plurality of heat transfer tubes are parallel to the bottom panel 4.
  • the L-shaped heat exchanger 11 is illustrated in FIG. 1 when viewed from the side of the top panel 3, the shape of the heat exchanger 11 is not limited to this, and is from the side of the top panel 3. As you can see, it may be flat or U-shaped.
  • the blower fan 13 is arranged at a position facing the heat exchanger 11 and the exhaust port 1a1, and the rotation axis of the blower fan 13 is arranged so as to face the direction of the exhaust port 1a1.
  • an axial fan such as a propeller fan is used.
  • the motor mounting base 17 has a support portion extending in the vertical direction. Although not shown, the upper end of the support is attached to the upper end of the heat exchanger 11 so as to be spaced from the heat exchanger 11. Further, the lower end portion of the support portion is fixed to the bottom panel 4 by screwing or the like.
  • the motor 15 is supported at the center of the support portion of the motor mounting base 17 in the vertical direction.
  • the axis of the rotation shaft of the motor 15 is arranged so as to face the direction of the exhaust port 1a1, and the rotation shaft of the blower fan 13 is attached to the tip of the rotation shaft of the motor 15.
  • the motor 15 is configured as a three-phase induction motor or a DC brushless motor in which the rotation speed of the blower fan 13 can be controlled by a voltage.
  • the machine room 7 is a space surrounded by a front panel 1, a side panel 2, a top panel 3, a bottom panel 4, and a partition plate 5. As shown in FIG. 1, the machine room 7 accommodates the compressor 19.
  • the compressor 19 is a fluid machine that compresses the sucked low-pressure refrigerant and discharges it as the high-pressure refrigerant.
  • a rotary compressor or a scroll compressor is used as the compressor 19 for example.
  • the compressor 19 is fixed to the bottom panel 4 by screwing or the like.
  • the machine room 7 accommodates, for example, a plurality of refrigerant pipes 21 constituting a refrigeration cycle circuit together with the heat exchanger 11 and the compressor 19.
  • the refrigerant pipe 21 is provided with one or more valves 23 that communicate with the internal flow path of the refrigerant pipe 21 and control the flow of the refrigerant flowing through the refrigerant pipe 21.
  • valve 23 for example, as shown in FIG. 1, automatic valves such as an expansion valve 23a and a four-way valve 23b are used.
  • the valve 23 may include a solenoid valve such as a three-way valve or a two-way valve that opens or closes the refrigerant flow path by energizing the solenoid.
  • the expansion valve 23a is a pressure reducing device that expands and depressurizes the liquid refrigerant.
  • an electric expansion valve such as a linear electronic expansion valve whose opening degree can be adjusted in multiple stages or continuously by energizing a pulse of a stepping motor is used.
  • the four-way valve 23b is an electric flow path switching valve that switches the internal flow path by energizing the solenoid.
  • the suction pipe and discharge pipe of the compressor 19, the heat exchanger 11, and the external unit are connected to the four-way valve 23b via the refrigerant pipe 21.
  • the internal flow path of the four-way valve 23b communicates with the suction pipe of the compressor 19 and the external unit, and communicates with the discharge pipe of the compressor 19 and the heat exchanger 11. The route is controlled.
  • the internal flow of the four-way valve 23b is such that the discharge pipe of the compressor 19 and the external unit communicate with each other, and the suction pipe of the compressor 19 and the heat exchanger 11 communicate with each other.
  • the route is controlled.
  • the operation mode of the outdoor unit 100 in which the high-pressure refrigerant discharged from the compressor 19 flows into the heat exchanger 11 is referred to as “cooling operation”, and the low-pressure refrigerant flowing out from the heat exchanger 11 flows into the compressor 19.
  • the operation mode of the outdoor unit 100 to be sucked is called "heating operation".
  • an electric component box 25 is housed inside the outdoor unit 100.
  • the electric component box 25 is arranged so as to straddle the blower room 6 and the machine room 7, and is attached to the upper part of the partition plate 5 by, for example, screwing.
  • the electrical component box 25 houses, for example, a plurality of electronic circuit boards including an inverter circuit that supplies electric power to the blower fan 13 and the compressor 19.
  • FIG. 2 is an enlarged view schematically showing a valve 23 and a refrigerant pipe 21 connected to the valve 23 in the outdoor unit 100 of the air conditioner according to the first embodiment.
  • the outdoor unit 100 has a pair of closing valves 27 and a pedestal 29 for fixing the closing valves 27 by screwing or the like.
  • the gantry 29 is fixed to the bottom panel 4 by screwing or the like.
  • the shutoff valve 27 is a manual valve provided with a handle 27a for opening or closing the internal flow path.
  • the shutoff valve 27 has a pair of end portions that connect the refrigerant pipe 21 of the outdoor unit 100 and the external pipe of the outdoor unit 100, for example, an extension pipe such as a local pipe.
  • a joint 27b for connecting an external pipe of the outdoor unit 100 is provided at one end of the shutoff valve 27.
  • the terminal member 27c can be attached to the joint 27b.
  • the end member 27c for example, a bag nut as shown in FIG. 2 may be used, or an end cap may be used.
  • the expansion valve 23a has a cylindrical main body 23a1.
  • the main body 23a1 houses a needle valve for adjusting the opening degree of the flow path and a rotor of a motor for driving the needle valve along the cylindrical axis of the main body 23a1.
  • the expansion valve 23a has a stator 23a2 of the motor attached to the side surface of the main body 23a1.
  • the stator 23a2 is formed as, for example, a hollow cylindrical molded coil. Further, although not shown, the stator 23a2 and the electrical component box 25 are electrically connected by wiring.
  • Two refrigerant pipes 21 are connected to the main body 23a1 of the expansion valve 23a.
  • the refrigerant pipe 21 connected to the main body 23a1 of the expansion valve 23a has a portion extending downward from the expansion valve 23a, and the portion is bent below the expansion valve 23a.
  • the lower end 21a of the refrigerant pipe 21 is bent in a U shape.
  • One of the refrigerant pipes 21 penetrates the cylindrical curved surface of the main body 23a1.
  • the other side of the refrigerant pipe 21 penetrates the circular surface below the main body 23a1.
  • one of the refrigerant pipes 21 is connected between one of the pair of shutoff valves 27 and the main body 23a1, and the other of the refrigerant pipes 21 is between the heat exchanger 11 and the main body 23a1. It is connected.
  • the four-way valve 23b has a cylindrical main body 23b1.
  • the main body 23b1 has a slide valve for switching the internal flow path and a piston for sliding the slide valve along the cylindrical axis of the main body 23b1.
  • the four-way valve 23b has a pilot valve 23b2 that drives the piston by the pressure difference of the refrigerant, and an electromagnetic coil 23b3 that drives the pilot valve 23b2 by a magnetic force.
  • the pilot valve 23b2 and the electromagnetic coil 23b3 are provided outside the main body 23b1. Further, although not shown, the electromagnetic coil 23b3 and the electrical component box 25 are electrically connected by wiring.
  • the main body 23b1 of the four-way valve 23b has one connection port arranged at the upper part of the main body 23b1 and three connection ports arranged at the lower part of the main body 23b1.
  • a refrigerant pipe 21 is connected to each connection port.
  • the refrigerant pipe 21 connected to each connection port of the four-way valve 23b has a portion extending below the four-way valve 23b, and the portion is bent below the four-way valve 23b.
  • the lower end 21a of a part of the refrigerant pipes 21 connected to each connection port of the four-way valve 23b is formed in the refrigerant pipe 21 bent in a U shape.
  • the refrigerant pipe 21 connected to the upper connection port of the four-way valve 23b is connected to the discharge pipe of the compressor 19. Further, the three refrigerant pipes 21 connected to the lower connection port of the four-way valve 23b are connected to the suction pipe of the compressor 19 and the heat exchanger 11 at the other of the pair of closing valves 27, respectively. ..
  • the refrigerant pipe 21 connected to the valve 23 such as the expansion valve 23a and the four-way valve 23b and extending below the valve 23 is arranged between the valve 23 and the bottom panel 4 which is the bottom surface of the housing.
  • the lower end 21a of the refrigerant pipe 21 is arranged at a distance from the bottom panel 4.
  • a force due to the weight of the stator 23a2 of the expansion valve 23a or the electromagnetic coil 23b3 of the four-way valve 23b is applied to the refrigerant pipe 21 extending below the valve 23.
  • an impact may be applied to the outdoor unit 100, such as the outdoor unit 100 falling.
  • FIG. 3 is a perspective view showing a cushioning material 30 covering the refrigerant pipe 21 in the outdoor unit 100 of the air conditioner according to the first embodiment.
  • FIG. 4 is a schematic view showing the positional relationship between the cushioning material 30 and the refrigerant pipe 21 covered with the cushioning material 30 in the outdoor unit 100 of the air conditioner according to the first embodiment.
  • FIG. 5 is a schematic view of FIG. 4 as viewed from the direction AA.
  • FIGS. 3 to 5 a configuration in which the refrigerant pipe 21 connected to the expansion valve 23a is covered with the cushioning material 30 is illustrated. Further, in FIGS. 4 and 5, the position of the refrigerant pipe 21 covered with the cushioning material 30 is shown by a dotted line.
  • the refrigerant pipe 21 connected to the expansion valve 23a and arranged between the expansion valve 23a and the bottom panel 4 is covered with the cushioning material 30.
  • the cushioning material 30 is wound so as to surround one or more refrigerant pipes 21 arranged between the expansion valve 23a and the bottom panel 4, and the end portion of the cushioning material 30 is attached to the wound cushioning material 30. It is attached by.
  • the cushioning material 30 may be formed in advance as a tubular or bag-shaped cushioning member, and may be attached to the refrigerant pipe 21 through a gap between the refrigerant pipe 21 and the bottom panel 4.
  • the cushioning material 30 is attached to the refrigerant pipe 21 so that the lower end 30a of the cushioning material 30 is located between the lower end 21a of the refrigerant pipe 21 and the bottom panel 4.
  • the refrigerant pipe 21 connected to the expansion valve 23a is covered with the cushioning material 30, it is not necessary to provide the expansion valve 23a with a movement restricting member such as a stopper as in the conventional case, so that the expansion valve 23a is arranged. The degree of freedom of position can be maintained.
  • the contact position of the refrigerant pipe 21 on the bottom panel 4 due to an external force is predicted.
  • a method of attaching a protective member to the contact position is known.
  • the contact position between the refrigerant pipe 21 and the bottom panel 4 may shift when the application direction of the external force is different from the predicted one.
  • the refrigerant pipe 21 connected to the expansion valve 23a is covered with the cushioning material 30, the refrigerant pipe 21 and the bottom panel 4 can be connected to each other regardless of the contact position between the refrigerant pipe 21 and the bottom panel 4.
  • the cushioning material 30 can be attached to the refrigerant pipe 21 so that the lower end 30a of the cushioning material 30 comes into contact with the bottom panel 4 in advance.
  • the cushioning material 30 is supported by the bottom panel 4. Therefore, as compared with the case where the lower end 30a of the cushioning material 30 is not in contact with the bottom panel 4.
  • the movement of the refrigerant pipe 21 can be restricted. Therefore, by bringing the lower end 30a of the cushioning material 30 into contact with the bottom panel 4, the resistance of the refrigerant pipe 21 to external forces such as vibration can be improved.
  • the cushioning material 30 can be attached to the refrigerant pipe 21 so that the upper end 30b of the cushioning material 30 comes into contact with the expansion valve 23a.
  • the cushioning material 30 can be attached to the refrigerant pipe 21 so as to come into contact with the lower surface 23a3 of the main body 23a1 of the expansion valve 23a.
  • the expansion valve 23a is supported by the cushioning material 30, so that the lower end 30a of the cushioning material 30 is not in contact with the bottom panel 4.
  • the movement range of the expansion valve 23a can be limited. Therefore, by bringing the upper end 30b of the cushioning material 30 into contact with the expansion valve 23a, the movement of the refrigerant pipe 21 can be restricted, so that the resistance of the refrigerant pipe 21 to external forces such as vibration can be further improved.
  • the present invention is not limited to this.
  • the same effect as described above can be obtained by covering the refrigerant pipe 21 connected to the four-way valve 23b with the cushioning material 30 in the same manner as described above.
  • the same effect as described above can be obtained by covering the refrigerant pipe 21 connected to the valve 23 with the cushioning material 30 in the same manner as described above.
  • the lower end 21a of the refrigerant pipe 21 is formed in the refrigerant pipe 21 bent in a U shape, but the refrigerant pipe 21 bent in another shape such as the refrigerant pipe 21 bent at an acute angle. It may be formed in.
  • FIG. 6 is a schematic view showing an example of the cushioning material 30 used in the outdoor unit 100 of the air conditioner of the first embodiment.
  • the cushioning material 30 can be formed as a synthetic resin material having a two-layer structure of the film material 31 and the sealing material 33.
  • the film material 31 for example, a polyethylene film is used. Since the cushioning material 30 has the film material 31, it is possible to prevent the cushioning material 30 from adhering to the members around the refrigerant pipe 21, so that the workability when attaching the cushioning material 30 to the refrigerant pipe 21 can be improved. it can. Further, after the cushioning material 30 is attached to the refrigerant pipe 21, it is possible to prevent the sealing material 33 from adhering to the operator's hand during the maintenance work of the outdoor unit 100, so that the workability of the maintenance work can be improved. Can be done. Further, after the cushioning material 30 is attached to the refrigerant pipe 21, the sealing material 33 is covered with the film material 31, so that the amount of dust or the like adhering to the cushioning material 30 can be suppressed.
  • a resin material having heat resistance and adhesiveness can be used.
  • a resin material having sound insulation can be used.
  • synthetic rubber such as butyl rubber is used.
  • Butyl rubber is a synthetic rubber produced by adding isoprene to the main component isobutylene and copolymerizing it.
  • the sealing material 33 of the cushioning material 30 when a resin material having sound insulation is used as the sealing material 33 of the cushioning material 30, damage to the refrigerant pipe 21 can be suppressed and the noise of the refrigerant flowing through the refrigerant pipe 21 can be suppressed. There is no need to provide it separately. Therefore, since it is possible to suppress an increase in the number of parts in the outdoor unit 100, it is possible to prevent an increase in the manufacturing cost of the outdoor unit 100. Further, by using a resin material having sound insulation as the sealing material 33 of the cushioning material 30, in addition to protecting the refrigerant pipe 21 during transportation of the outdoor unit 100, the refrigerant pipe 21 during operation of the outdoor unit 100 can be used. The cushioning material 30 can also be used to suppress noise. Therefore, by using a resin material having sound insulation as the sealing material 33 of the cushioning material 30, it is possible to improve the cost-effectiveness regarding the use of the cushioning material 30.
  • the cushioning material 30 described above covers only the refrigerant pipe 21, it may cover a part or the whole of the valve 23.
  • the cushioning material 30 By covering a part or the whole of the valve 23 with the cushioning material 30, it is possible to suppress the operating noise of the valve 23 as well as the refrigerant noise of the refrigerant pipe 21. Further, when a resin material having sound insulation is used as the cushioning material 30, the operating noise of the valve 23 can be further suppressed.
  • FIG. 7 is a perspective view showing a cushioning material 30 covering the refrigerant pipe 21 in the outdoor unit 100 of the air conditioner according to the second embodiment.
  • the same contents as those in the above-described first embodiment with respect to the cushioning material 30 and the refrigerant pipe 21 will be omitted.
  • the lower end 30a and the upper end 30b of the cushioning material 30 covering the refrigerant pipe 21 can be sealed.
  • the lower end 30a or the upper end 30b of the cushioning material 30 may be sealed by using the adhesive force of the cushioning material 30 itself, or may be sealed by using a separate sealing material such as an adhesive. ..
  • both the lower end 30a and the upper end 30b of the cushioning material 30 are sealed, but only one of the lower end 30a and the upper end 30b of the cushioning material 30 may be sealed.
  • the cushioning material 30 may be brought into close contact with the refrigerant pipe 21 and sealed so that no gap remains between the cushioning materials 30 surrounding the refrigerant pipe 21.
  • a notch 30c for penetrating the refrigerant pipe 21 can be formed between the upper end 30b and the lower end 30a of the cushioning material 30.
  • the arrangement of the refrigerant pipe 21 may hinder the sealing.
  • the notch 30c is formed in the cushioning material 30, the refrigerant pipe 21 can be passed through the notch 30c of the cushioning material 30 so as not to interfere with the sealing of the cushioning material 30, so that the cushioning material 30 is sealed. The workability of the cushion can be improved.
  • the refrigerant pipe 21 is configured to be able to penetrate through the notch 30c of the cushioning material 30, it is necessary to limit the positions of both ends of the refrigerant pipe 21 covered with the cushioning material 30 to the lower end 30a and the upper end 30b of the cushioning material 30. Therefore, the degree of freedom in the arrangement mode of the refrigerant pipe 21 can be improved.
  • Embodiment 3 The structure of the bottom panel 4 in the outdoor unit 100 of the air conditioner according to the third embodiment will be described with reference to FIGS. 8 and 9.
  • FIG. 8 is a top view showing an example of the structure of the bottom panel 4 in the outdoor unit 100 of the air conditioner according to the third embodiment.
  • FIG. 9 is an enlarged schematic view of a part of the bottom panel 4 of FIG. In the following, the description of the structure of the bottom panel 4 which is the same as that of the first embodiment will be omitted.
  • the bottom panel 4 is provided with a compressor mounting base 41, a heat exchanger mounting base 43, a motor mounting base support portion 45, and a drain pan portion 47.
  • the compressor mounting base 41 fixes the bottom portion of the compressor 19 shown in FIG. 1 by screwing or the like.
  • the heat exchanger mounting table 43 supports the lower portion of the heat exchanger 11 shown in FIG.
  • the motor mount support portion 45 fixes the lower end portion of the motor mount 17 shown in FIG. 1 by screwing or the like.
  • the drain pan portion 47 has a drain hole 47a penetrating the bottom panel 4 and a drain passage 47b formed around the heat exchanger mounting table 43 and inclined in the direction of the drain hole 47a. In the bottom panel 4, the drain water generated in the heat exchanger 11 can be drained from the drain hole 47a to the outside of the outdoor unit 100 via the heat exchanger mounting table 43 and the drainage channel 47b.
  • the bottom panel 4 is mounted on the bottom panel 4 at a position away from the compressor mounting base 41, the heat exchanger mounting base 43, the motor mounting base support portion 45, and the drain pan portion 47.
  • a placement surface 49 can be provided.
  • the mounting surface 49 is provided at a corner of the bottom panel 4.
  • the mounting surface 49 may be formed as a flat surface in a dish-shaped recess provided in the bottom panel 4, or may be formed as a flat surface in a bead-shaped ridge provided on the bottom panel 4. May be good.
  • the mounting surface 49 is formed at a position where the lower end 30a of the cushioning material 30 shown in the above-described first embodiment or second embodiment comes into contact with the bottom panel 4 due to an external force such as vibration. Further, the lower end 30a of the cushioning material 30 can be placed on the mounting surface 49.
  • the bottom panel 4 With a mounting surface 49 on which the lower end 30a of the cushioning material 30 is placed, when the lower end 30a of the cushioning material 30 comes into contact with the bottom panel 4 due to an external force such as vibration, the lower end of the cushioning material 30 is placed. 30a can be brought into contact with the bottom panel 4 perpendicularly.
  • the cushioning material 30 comes into contact with the bottom panel 4 perpendicularly, it is possible to prevent the cushioning material 30 from moving in a direction parallel to the bottom panel 4. Therefore, it is possible to suppress the deformation of the refrigerant pipe 21 by moving the cushioning material 30 in the direction parallel to the bottom panel 4.
  • the outdoor unit 100 of the air conditioner is illustrated as the refrigeration cycle device, but if the refrigeration cycle device has a valve 23 constituting the refrigerant circuit, another refrigeration cycle device can be used.
  • the refrigeration cycle device may be an indoor unit of an air conditioner, or may be a repeater connected between the outdoor unit 100 of the air conditioner and the indoor unit.
  • the refrigeration cycle device may be an integrated air conditioner in which the indoor unit and the outdoor unit 100 are integrated.
  • the refrigerating cycle device is not limited to an air conditioner, and may be a refrigerating cycle device such as a refrigerating device, a dehumidifier, a vending machine, or a showcase.

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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)
PCT/JP2019/038682 2019-10-01 2019-10-01 冷凍サイクル装置 WO2021064845A1 (ja)

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JP2002106885A (ja) * 2000-09-29 2002-04-10 Matsushita Electric Ind Co Ltd 空気調和機室外機の膨張弁保持装置
JP2008145039A (ja) * 2006-12-08 2008-06-26 Daikin Ind Ltd 空気調和装置の断熱配管構造
JP2011174653A (ja) * 2010-02-24 2011-09-08 Fujitsu General Ltd 空気調和機の室外機
JP2012107563A (ja) * 2010-11-17 2012-06-07 Daikin Industries Ltd 圧縮機を搭載するユニット及びその振動低減方法
JP2014070584A (ja) * 2012-09-28 2014-04-21 Panasonic Corp 空気調和装置
JP2016099061A (ja) * 2014-11-21 2016-05-30 三菱電機株式会社 冷凍サイクル装置
WO2018225189A1 (ja) * 2017-06-07 2018-12-13 三菱電機株式会社 筒状断熱部材および冷凍サイクル装置

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JP3041467B2 (ja) * 1993-10-27 2000-05-15 株式会社日立製作所 空気調和機
JPH11323124A (ja) * 1998-05-11 1999-11-26 Mitsubishi Heavy Ind Ltd 発泡ウレタン制振材及び発泡ウレタン制振材の施工方法
KR100598215B1 (ko) * 2004-02-25 2006-07-07 엘지전자 주식회사 에어컨 실외기의 배관 구조
US20200232660A1 (en) * 2017-10-25 2020-07-23 Mitsubishi Electric Corporation Unit for refrigeration cycle device, refrigeration cycle device, and electric apparatus

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002106885A (ja) * 2000-09-29 2002-04-10 Matsushita Electric Ind Co Ltd 空気調和機室外機の膨張弁保持装置
JP2008145039A (ja) * 2006-12-08 2008-06-26 Daikin Ind Ltd 空気調和装置の断熱配管構造
JP2011174653A (ja) * 2010-02-24 2011-09-08 Fujitsu General Ltd 空気調和機の室外機
JP2012107563A (ja) * 2010-11-17 2012-06-07 Daikin Industries Ltd 圧縮機を搭載するユニット及びその振動低減方法
JP2014070584A (ja) * 2012-09-28 2014-04-21 Panasonic Corp 空気調和装置
JP2016099061A (ja) * 2014-11-21 2016-05-30 三菱電機株式会社 冷凍サイクル装置
WO2018225189A1 (ja) * 2017-06-07 2018-12-13 三菱電機株式会社 筒状断熱部材および冷凍サイクル装置

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