WO2021210115A1 - 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
WO2021210115A1
WO2021210115A1 PCT/JP2020/016645 JP2020016645W WO2021210115A1 WO 2021210115 A1 WO2021210115 A1 WO 2021210115A1 JP 2020016645 W JP2020016645 W JP 2020016645W WO 2021210115 A1 WO2021210115 A1 WO 2021210115A1
Authority
WO
WIPO (PCT)
Prior art keywords
casing
drain
air conditioner
drain pan
indoor unit
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/JP2020/016645
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
貴之 瀬戸
田澤　哲也
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 JP2022514938A priority Critical patent/JPWO2021210115A1/ja
Priority to PCT/JP2020/016645 priority patent/WO2021210115A1/ja
Publication of WO2021210115A1 publication Critical patent/WO2021210115A1/ja
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
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/22—Means for preventing condensation or evacuating condensate

Definitions

  • the present disclosure relates to an indoor unit of an air conditioner provided with a drain pipe for draining drain water stored in a drain pan to the outside.
  • an indoor unit of an air conditioner is arranged below a casing forming an outer shell, an installation plate for attaching the casing to a wall in the room, a heat exchanger provided inside the casing, and a heat exchanger.
  • the drain pan is provided with a drain pan and a drain pipe for draining the drain water stored in the drain pan to the outside.
  • a concave pipe retainer for supporting a drain pipe is provided on the installation plate.
  • Two pipe retainers are provided at the lower end edge of the installation plate at a horizontal interval along the left-right direction.
  • the installation device of the air conditioner disclosed in Patent Document 1 has a configuration in which the drain pipe is horizontally supported by the pipe retainer, the flow of the drain water flowing out from the drain pan may stop in the middle of the drain pipe. If the drainage property of the drainage pipe is poor, drainage water may collect inside the drainage pipe and an offensive odor may be generated from the drainage pipe. In addition, dust may accumulate together with the drain water and clog the drain pipe, causing the drain water to overflow from the drain pan.
  • the present disclosure has been made to solve the above-mentioned problems, and provides an indoor unit of an air conditioner capable of improving the drainage property of a drain pipe for draining drain water flowing out of a drain pan. With the goal.
  • the indoor unit of the air exchanger is provided on the casing forming the outer shell, the installation plate provided on the back side of the casing, and the mounting plate for attaching the casing to the attached portion, and the inside of the casing. It has a heat exchanger, a drain pan arranged below the heat exchanger, and a drain pipe connected to the drain pan and draining the drain water stored in the drain pan to the outside. One end side is connected to the drain pan, and the other end side extended toward the installation plate is turned from the other end side of the first extension portion in contact with the inner surface of the installation plate, and the lower surface of the casing is changed. It has a second stretching portion that is inclined and stretched toward the surface.
  • the drain water flowing out of the drain pan is smoothly drained to the outside by the second extension portion inclined toward the lower surface of the casing without stopping in the middle of the drain pipe. Therefore, the drainage property of the drain pipe can be improved.
  • FIG. 2 is a cross-sectional view taken along the line IV-IV shown in FIG. It is an indoor unit of the air conditioner which concerns on this embodiment, and is explanatory drawing which showed schematic
  • FIG. 1 is a perspective view showing the indoor unit of the air conditioner according to the present embodiment from the front side.
  • FIG. 2 is a rear view of the indoor unit of the air conditioner according to the present embodiment, in which a part of the installation plate is cut out.
  • FIG. 3 is a rear view showing the internal structure of the indoor unit of the air conditioner according to the present embodiment.
  • FIG. 4 is a cross-sectional view taken along the line IV-IV shown in FIG.
  • FIG. 5 is an explanatory diagram schematically showing the positional relationship between the drain pan and the installation plate in the indoor unit of the air conditioner according to the present embodiment.
  • FIG. 6 is an explanatory diagram schematically showing the positional relationship between the drain pan and the installation plate in the indoor unit of the air conditioner according to the present embodiment.
  • the indoor unit 100 of the air conditioner 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. be.
  • the indoor unit 100 and the outdoor unit are connected by a pipe through which a heat medium such as a refrigerant passes to form a refrigeration cycle circuit.
  • the indoor unit 100 includes a casing 1, an installation plate 2, a heat exchanger 3, a blower 4, a drain pan 5, a drain pipe 6, and a refrigerant pipe (not shown). It has.
  • the heat exchanger 3 and the blower 4 are shown in FIG.
  • the casing 1 has a configuration in which a rear case 10 and a front case 11 attached to the rear case 10 are combined to form a horizontally long substantially rectangular parallelepiped box shape.
  • the heat exchanger 3, the blower 4, the drain pan 5, the drain pipe 6, the refrigerant pipe, and the like are housed inside the casing 1.
  • the back case 10 constitutes the back side of the casing 1. As shown in FIGS. 2 and 4, the rear case 10 has an outer surface side attached to an installation plate 2 fixed to a wall surface in the room. A heat exchanger 3, a blower 4, a drain pan 5, and the like are attached to the inner surface side of the back case 10. Further, the back case 10 has a shape in which the lower portion is recessed inward of the casing 1. In the recessed portion of the back case 10, a drain pipe 6 and a storage portion 12 for a refrigerant pipe or the like are provided.
  • 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 for taking in indoor air is formed on the upper surface of the front case 11.
  • the suction port is covered with a filter that collects dust in the air-conditioned space.
  • an air outlet 11a extending in the left-right direction is formed in the lower portion of the front case 11.
  • the air outlet 11a is provided with a wind direction adjusting plate for adjusting the vertical wind direction of the blown air.
  • the installation plate 2 is provided on the back side of the casing 1 and is for attaching the casing 1 to a mounted portion such as a wall surface in a room.
  • the installation plate 2 is made of a substantially rectangular metal plate, and is fixed to a mounted portion in the room with a fixing member such as a screw, a bolt, or a nail.
  • the heat exchanger 3 exchanges heat between the indoor air sucked by the blower 4 and the refrigerant, and supplies the air after the heat exchange to the room.
  • the heat exchanger 3 functions as an evaporator to cool the air during the cooling operation. Further, the heat exchanger 3 functions as a condenser (radiator) to heat the air during the heating operation.
  • the heat exchanger 3 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 4 sucks indoor air from the suction port and blows out conditioned air from the air outlet 11a.
  • the blower 4 is mounted on the rear case 10, is an air passage from the suction port to the air outlet 11a, and is provided on the downstream side of the heat exchanger 3.
  • the blower 4 may be composed of, for example, a cross flow fan.
  • the drain pan 5 is arranged below the heat exchanger 3 and stores drain water generated during heat exchange.
  • the drain pan 5 is a groove-shaped container having an opening on the upper surface.
  • the drain pan 5 is arranged so that the opening on the upper surface faces the lower end of the heat exchanger 3, and receives the drain water dropped from the heat exchanger 3 from the opening on the upper surface.
  • the drain pan 5 is provided with a drain pipe connecting portion 50 for connecting the drain pipe 6.
  • the drainage pipe connecting portion 50 is provided so as to protrude toward the installation plate 2.
  • the drain water collected by the drain pan 5 is drained to the outside by a drain pipe 6 connected to the drain pan 5.
  • the drainage pipe connecting portion 50 is provided so as to be inclined at an angle ⁇ 1 toward the lower surface 13 of the casing 1. This is because the drain pipe 6 is inclined toward the lower surface 13 of the casing 1.
  • the angle ⁇ 1 is preferably an angle close to 0 °, but the position A of the installation plate 2 on a straight line in the direction in which the drain pipe connecting portion 50 protrudes may be in a range above the lower surface 13 of the casing 1.
  • the drainage pipe connecting portion 50 may be provided so as to project horizontally toward the installation plate 2.
  • the drain pipe 6 is connected to the drain pan 5 and drains the drain water stored in the drain pan 5 to the outside.
  • the drain pipe 6 is composed of, for example, a flexible hose.
  • the flexible hose is made of, for example, metal, plastic, rubber, or the like, and can be used by freely changing the direction in which drain water is drained, the installation location, and the like.
  • the material and shape of the flexible hose may be any configuration as long as the direction in which the drain water is drained and the installation location can be freely changed.
  • the drainage pipe 6 has a first extension portion 60 and a second extension portion 61.
  • the first stretched portion 60 has a configuration in which one end side is connected to the drain pipe connecting portion 50 of the drain pan 5 and the other end side stretched toward the installation plate 2 comes into contact at a position A on the inner surface of the installation plate 2.
  • the second stretched portion 61 has a configuration in which the direction is changed from the other end of the first stretched portion 60 and the second stretched portion 61 is inclined and stretched toward the lower surface 13 of the casing 1.
  • the first extending portion 60 extends linearly toward the installation plate 2. Since the first extending portion 60 is connected to the inclined drain pipe connecting portion 50, the first extending portion 60 is inclined downward at an angle ⁇ 1. By providing the first stretched portion 60 with an inclination, the drainage property of the drain water flowing from the drain pan 5 can be improved.
  • the angle ⁇ 1 may be such that drain water flows.
  • the first stretched portion 60 does not necessarily have to be inclined and may be horizontal. This is because the length of the first stretched portion 60 is short, so that the drain water may smoothly flow to the second stretched portion 61 due to the force of the flow from the drain pan 5.
  • first stretched portion 60 is in contact with the inner surface of the installation plate 2 at a position above the lower surface 13 of the casing 1.
  • second extending portion 61 can be inclined toward the lower surface 13 of the casing 1, and the drain pipe 6 can be positioned.
  • the second extending portion 61 is provided so as to be inclined at an angle ⁇ 2 along the left-right direction of the installation plate 2.
  • the angle ⁇ 2 may be an angle such that drain water flows.
  • the tip of the second extending portion 61 is connected to a drainage portion (not shown) leading to the outside. That is, the second stretching portion 61 is provided to smoothly guide the drain water flowing from the first stretching portion 60 toward the drainage portion. Since the drain pipe 6 is composed of a flexible hose, the connection position with the drain portion leading to the outside can be freely changed in the range B in the left-right direction of the installation plate 2.
  • the storage unit 12 is provided with a refrigerant pipe together with the drain pipe 6.
  • the refrigerant pipe is composed of a gas pipe and a liquid pipe, and connects the heat exchanger 3 and the connection pipe connected to the outdoor unit.
  • the indoor unit 100 of the air conditioner according to the present embodiment is provided on the casing 1 forming the outer shell and the back side of the casing 1, and the installation plate 2 for attaching the casing 1 to the mounted portion.
  • a drain pipe connected to the heat exchanger 3 provided inside the casing 1, the drain pan 5 arranged below the heat exchanger 3, and the drain pan 5 to drain the drain water stored in the drain pan 5 to the outside. 6 and.
  • One end side of the drain pipe 6 is connected to the drain pan 5, and the other end side extending toward the installation plate 2 faces the first extension portion 60 in contact with the inner surface of the installation plate 2 and the other end side of the first extension portion 60.
  • the second stretched portion 61 is formed so as to be inclined toward the lower surface 13 of the casing 1 and stretched.
  • the drain water flowing out from the drain pan 5 is stopped in the middle of the drain pipe 6 by the second extending portion 61 inclined toward the lower surface 13 of the casing 1. Since the drainage is smoothly directed to the outside, the drainage property of the drainage pipe 6 can be improved.
  • the indoor unit 100 of the air conditioner according to the present embodiment can smoothly flow the drain water flowing from the drain pan 5 to the first stretched portion 60 toward the second stretched portion 61, thus improving the drainage property. Can be improved.
  • the drainage pipe 6 is composed of a flexible hose. Therefore, the indoor unit 100 of the air conditioner according to the present embodiment is excellent in usability because it can be used by freely changing the direction of draining drain water, the installation location, and the like.
  • 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 components, 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)
  • Devices For Blowing Cold Air, Devices For Blowing Warm Air, And Means For Preventing Water Condensation In Air Conditioning Units (AREA)
PCT/JP2020/016645 2020-04-16 2020-04-16 空気調和機の室内機 Ceased WO2021210115A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2022514938A JPWO2021210115A1 (https=) 2020-04-16 2020-04-16
PCT/JP2020/016645 WO2021210115A1 (ja) 2020-04-16 2020-04-16 空気調和機の室内機

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2020/016645 WO2021210115A1 (ja) 2020-04-16 2020-04-16 空気調和機の室内機

Publications (1)

Publication Number Publication Date
WO2021210115A1 true WO2021210115A1 (ja) 2021-10-21

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PCT/JP2020/016645 Ceased WO2021210115A1 (ja) 2020-04-16 2020-04-16 空気調和機の室内機

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WO (1) WO2021210115A1 (https=)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005024217A (ja) * 2003-07-04 2005-01-27 Daikin Ind Ltd 空気調和装置の室内機
JP2005069572A (ja) * 2003-08-25 2005-03-17 Daikin Ind Ltd 空気調和機の室内機
JP2020051641A (ja) * 2018-09-25 2020-04-02 日立ジョンソンコントロールズ空調株式会社 空気調和機の室内機

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH046329A (ja) * 1990-04-24 1992-01-10 Sanyo Electric Co Ltd 空気調和機
JP2519378Y2 (ja) * 1990-08-27 1996-12-04 三洋電機株式会社 空気調和機
JP2000046367A (ja) * 1998-07-27 2000-02-18 Mitsubishi Heavy Ind Ltd 室内ユニット及び空気調和機

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005024217A (ja) * 2003-07-04 2005-01-27 Daikin Ind Ltd 空気調和装置の室内機
JP2005069572A (ja) * 2003-08-25 2005-03-17 Daikin Ind Ltd 空気調和機の室内機
JP2020051641A (ja) * 2018-09-25 2020-04-02 日立ジョンソンコントロールズ空調株式会社 空気調和機の室内機

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