WO2015115127A1 - 空気調和機の室内ユニット - Google Patents

空気調和機の室内ユニット Download PDF

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Publication number
WO2015115127A1
WO2015115127A1 PCT/JP2015/050130 JP2015050130W WO2015115127A1 WO 2015115127 A1 WO2015115127 A1 WO 2015115127A1 JP 2015050130 W JP2015050130 W JP 2015050130W WO 2015115127 A1 WO2015115127 A1 WO 2015115127A1
Authority
WO
WIPO (PCT)
Prior art keywords
refrigerant pipe
liquid
gas
refrigerant
flare union
Prior art date
Application number
PCT/JP2015/050130
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
透 安東
Original Assignee
ダイキン工業株式会社
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 ダイキン工業株式会社 filed Critical ダイキン工業株式会社
Priority to EP15743820.1A priority Critical patent/EP3101353B1/de
Priority to CN201580004692.XA priority patent/CN105917173B/zh
Priority to AU2015212207A priority patent/AU2015212207B2/en
Priority to ES15743820.1T priority patent/ES2678749T3/es
Publication of WO2015115127A1 publication Critical patent/WO2015115127A1/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
    • F24F1/32—Refrigerant piping for connecting the separate outdoor units to indoor units
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/0007—Indoor units, e.g. fan coil units
    • F24F1/0071—Indoor units, e.g. fan coil units with means for purifying supplied air
    • 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
    • F24F1/0043—Indoor units, e.g. fan coil units characterised by mounting arrangements
    • F24F1/0057—Indoor units, e.g. fan coil units characterised by mounting arrangements mounted in or on a wall

Definitions

  • This invention relates to an indoor unit of an air conditioner.
  • an indoor heat exchanger 101 as shown in FIG. 5 is arranged in a casing (see, for example, JP-A-2013-155892 (Patent Document 1)).
  • One end of the connection pipe 102 is connected to the indoor heat exchanger 101, and the refrigerant is guided to the indoor heat exchanger 101 or the outdoor heat exchanger (not shown) through the connection pipe 102.
  • connection pipe 102 extends downward from the upper part of the indoor heat exchanger 101, is bent, and extends in the horizontal direction.
  • the connection pipe 102 includes a first refrigerant pipe 103 arranged on the indoor heat exchanger 101 side and a second refrigerant pipe 104 arranged on the opposite side to the indoor heat exchanger 101 side.
  • the first refrigerant pipe 103 is made of aluminum or an aluminum alloy.
  • the second refrigerant pipe 104 is made of copper or a copper alloy.
  • the other end of the first refrigerant pipe 103 (the end opposite to the indoor heat exchanger 101 side) is connected to one end of the second refrigerant pipe 104 (the end on the indoor heat exchanger 101 side).
  • the connection portion 106 between the first refrigerant pipe 103 and the second refrigerant pipe 104 is disposed in a portion extending in the vertical direction in the connection pipe 102.
  • a flare union 105 is brazed to the other end of the second refrigerant pipe 104 (the end opposite to the indoor heat exchanger 101 side).
  • the connecting pipe 102 When the indoor unit is installed on the indoor wall, an operator must bend the connecting pipe 102 depending on the installation location of the indoor unit. In this case, the worker moves a portion extending in the horizontal direction in the connection pipe 102 in the vertical direction or rotates the first refrigerant pipe 103 as a center. As a result, torsional or bending stress is generated in the connecting portion 106 between the first refrigerant pipe 103 and the second refrigerant pipe 104. Since the connecting portion 106 is formed of different metals, it is weak against torsional or bending stress.
  • an object of the present invention is to provide an indoor unit of an air conditioner that can reduce the risk of breakage of the connecting portion between the first refrigerant pipe and the second refrigerant pipe.
  • an indoor unit of an air conditioner of the present invention is A casing, An indoor heat exchanger disposed in the casing; A first refrigerant pipe formed of aluminum or an aluminum alloy with one end connected to the indoor heat exchanger; A second refrigerant pipe formed of copper or a copper alloy with one end connected to the other end of the first refrigerant pipe; A joint connected to the other end of the second refrigerant pipe,
  • the first refrigerant pipe has an extending portion that extends along the side portion of the casing, and a bent portion that is bent toward the joint portion side and is connected to an end of the extending portion on the joint portion side.
  • the connecting portion between the other end portion of the first refrigerant pipe and the one end portion of the second refrigerant pipe is between the end of the bent portion on the joint portion side and the end of the second refrigerant pipe on the joint portion side. It is characterized by that.
  • coolant piping is the edge of the joint part side of a bending part, and the edge of the joint part side of 2nd refrigerant
  • the connecting portion between the other end portion of the first refrigerant pipe and the one end portion of the second refrigerant pipe is an intermediate between the end of the bent portion on the joint portion side and the end of the second refrigerant pipe on the joint portion side. More on the joint side.
  • coolant piping is the end by the side of the joint part of a bending part, and the end by the side of the joint part of 2nd refrigerant
  • An air conditioner includes a casing, an indoor heat exchanger disposed in the casing, a first refrigerant pipe made of aluminum or an aluminum alloy, and having one end connected to the indoor heat exchanger. And a first refrigerant pipe connected to the other end of the first refrigerant pipe, a second refrigerant pipe formed of copper or a copper alloy, and a joint connected to the other end of the second refrigerant pipe.
  • the first refrigerant pipe has an extending part extending along the side part of the casing, and a bent part that is bent to the joint part side and is connected to an end of the extending part on the joint part side, Since the connecting portion between the other end portion of the first refrigerant pipe and the one end portion of the second refrigerant pipe is between the end of the bent portion on the joint portion side and the end of the second refrigerant pipe on the joint portion side, For example, even if the second refrigerant pipe is moved with respect to the extended part of the refrigerant pipe, It can be reduced under the stress. Therefore, the risk that the connecting portion breaks can be reduced.
  • FIG. 1 is a schematic perspective view of an indoor unit of an air conditioner according to an embodiment of the present invention.
  • FIG. 2 is another schematic perspective view of the indoor unit.
  • FIG. 3 is a rear view of the indoor heat exchanger of the indoor unit and its peripheral part.
  • FIG. 4 is another schematic perspective view of the indoor unit.
  • FIG. 5 is a schematic diagram for explaining the configuration of an indoor unit of a conventional air conditioner.
  • FIG. 1 is a schematic perspective view of an indoor unit of an air conditioner according to an embodiment of the present invention as viewed obliquely from the front side.
  • FIG. 2 is a schematic perspective view of the indoor unit as viewed obliquely from the rear side.
  • the indoor unit includes a casing 1 and an indoor heat exchanger 2 (shown in FIG. 3) disposed in the casing 1.
  • the upper portion of the casing 1 is provided with a suction port 1a for sucking room air.
  • an air outlet 1 b that blows out indoor air that has passed through the indoor heat exchanger 2.
  • wing 12 is attached to the blower outlet 1b.
  • a cross flow fan (not shown) is disposed on the downstream side of the indoor heat exchanger 2 and on the upstream side of the air outlet 1b.
  • a compressor of an outdoor unit not shown, a four-way valve, an outdoor heat exchanger and an expansion means (for example, an expansion valve), and the indoor heat exchanger 2 are connected in a ring shape to form a refrigerant circuit.
  • an expansion means for example, an expansion valve
  • FIG. 3 is a rear view of the indoor heat exchanger 2 and its peripheral part.
  • the indoor heat exchanger 2 includes a heat exchanging unit 3 and a plurality of heat transfer tubes 4, 4, and the like penetrating the heat exchanging unit 3.
  • the heat exchange unit 3 and each heat transfer tube 4 are each formed of aluminum or an aluminum alloy.
  • the indoor unit includes a liquid first refrigerant pipe 5, a liquid second refrigerant pipe 6 communicating with the liquid first refrigerant pipe 5, a gas first refrigerant pipe 7, and the gas first refrigerant pipe 5.
  • a gas second refrigerant pipe 8 communicating with the refrigerant pipe 7, a liquid flare union 9, and a gas flare union 10 are provided.
  • the liquid first refrigerant pipe 5 and the gas first refrigerant pipe 7 are each formed of aluminum or an aluminum alloy.
  • the liquid second refrigerant pipe 6 and the gas second refrigerant pipe 8 are each formed of copper or a copper alloy.
  • the liquid first refrigerant pipe 5 and the gas first refrigerant pipe 7 are examples of the first refrigerant pipe.
  • the liquid second refrigerant pipe 6 and the gas second refrigerant pipe 8 are examples of the second refrigerant pipe.
  • the liquid flare union 9 and the gas flare union 10 are examples of joint portions.
  • the first liquid refrigerant pipe 5 is connected to one end of the heat transfer pipe 4 via a branching / merging device 11.
  • the liquid first refrigerant pipe 5 is connected to the side linear portion 5a extending along the side of the casing 1 and the liquid flare union 9 side end of the side linear portion 5a. It has a bent portion 5b bent to the flare union 9 side, and a lower straight portion 5c extending along the lower portion of the casing 1 connected to the end of the bent portion 5b on the liquid flare union 9 side.
  • the side part side straight part 5a is an example of an extension part.
  • one end of the liquid second refrigerant pipe 6 (the end on the lower straight part 5c side) is the other end of the liquid first refrigerant pipe 5 (the end on the liquid second refrigerant pipe 6 side). It is connected to the. More specifically, the end of the lower-side straight portion 5c on the liquid second refrigerant pipe 6 side has a larger diameter than the other part of the lower-side straight portion 5c, and one end of the liquid-use second refrigerant pipe 6 Is inserted.
  • the connecting portion between the other end of the first liquid refrigerant pipe 5 and one end of the second liquid refrigerant pipe 6 is connected to the end of the bent portion 5b on the liquid flare union 9 side and the second liquid refrigerant pipe. 6 and the liquid flare union 9 side end.
  • the connecting portion has a liquid flare union 9 that is intermediate between the end of the bent portion 5b on the liquid flare union 9 side and the end of the liquid second refrigerant pipe 6 on the liquid flare union 9 side. Arranged on the side.
  • the gas first refrigerant pipe 7 is connected to one end of another heat transfer pipe 4 via a branching / merging device (not shown).
  • the gas first refrigerant pipe 7 is connected to the side-side straight portion 7a extending along the side portion of the casing 1 and the end of the side-side straight portion 7a on the gas flare union 10 side.
  • the side part side linear part 7a is an example of an extension part.
  • one end of the gas second refrigerant pipe 8 (the end on the lower straight part 7c side) is the other end of the gas first refrigerant pipe 7 (the end on the gas second refrigerant pipe 8 side). It is connected to the. More specifically, the end portion of the lower straight portion 7c on the gas second refrigerant pipe 8 side has a larger diameter than the other portion of the lower straight portion 7c, and one end portion of the gas second refrigerant pipe 8 Is inserted. The end of the lower straight portion 7c on the gas second refrigerant pipe 8 side is connected to one end of the gas second refrigerant pipe 8 by a brazing material between the gas second refrigerant pipe 8 and one end thereof. Fixed.
  • a gas flare union 10 is connected to the other end of the second gas refrigerant pipe 8.
  • the connecting portion between the other end portion of the first gas refrigerant pipe 7 and one end portion of the second gas refrigerant pipe 8 is the end of the bent portion 7b on the gas flare union 10 side and the second gas refrigerant pipe. 8 and the gas flare union 10 side end. More precisely, the connecting portion is configured so that the gas flare union 10 is more intermediate than the end of the bent portion 7b on the gas flare union 10 side and the end of the gas second refrigerant pipe 8 on the gas flare union 10 side. Arranged on the side.
  • the refrigerant pipe 5 when installed, the lower straight portion 5c of the liquid first refrigerant pipe 5 and the liquid second refrigerant pipe 6 are connected to the liquid first refrigerant pipe 5 as shown in FIG.
  • the refrigerant pipe 5 may be brought closer to the side straight portion 5a.
  • stress of twisting or bending occurs in the side portion side straight portion 5a, since the connecting portions formed of different metals are not arranged in the side portion straight portion 5a, the side portion straight portion 5a The risk of breakage is low.
  • the torsional or bending stress generated in the portion between the end of the bent portion 5b on the liquid flare union 9 side and the end of the liquid second refrigerant pipe 6 on the liquid flare union 9 side is It is smaller than the torsional or bending stress produced in the side part side straight part 5a of the first refrigerant pipe 5. Accordingly, the connecting portion between the other end of the liquid first refrigerant pipe 5 and one end of the liquid second refrigerant pipe 6 is the end of the bent portion 5b on the liquid flare union 9 side and the liquid second refrigerant pipe 6. Since it is disposed between the liquid flare union 9 and the end on the liquid flare union 9 side, the risk of breakage of the connecting portion can be reduced.
  • the connecting portion between the other end of the first liquid refrigerant pipe 5 and one end of the second liquid refrigerant pipe 6 is connected to the end of the bent portion 5b on the liquid flare union 9 side and the second liquid refrigerant pipe. 6 is arranged closer to the liquid flare union 9 side than the middle of the liquid flare union 9 side. Thereby, the possibility that a large torsional or bending stress is generated in the connecting portion can be reliably reduced.
  • the heat exchanging section 3 and the heat transfer tubes 4 are each formed of aluminum or an aluminum alloy, the manufacturing cost can be reduced.
  • connection portion between the other end of the liquid first refrigerant pipe 5 and the one end of the liquid second refrigerant pipe 6 is the end of the bent portion 5b on the liquid flare union 9 side and the liquid second.
  • the refrigerant pipe 6 is disposed on the liquid flare union 9 side rather than the middle of the liquid flare union 9 side end, but the liquid flare union 9 side end of the bent part 5b and the liquid second refrigerant pipe 6 are disposed. You may make it arrange
  • the connecting portion between the other end of the gas first refrigerant pipe 7 and the one end of the gas second refrigerant pipe 8 is the end of the bent portion 7b on the gas flare union 10 side and the gas second refrigerant pipe.
  • the gas flare union 10 side of the gas flare union 10 side of the gas flare union 10 side of the gas, and the gas flare union 10 side end of the bent portion 7b and the gas in the gas second refrigerant pipe 8 You may make it arrange
  • liquid first refrigerant pipe 5, the liquid second refrigerant pipe 6, the gas first refrigerant pipe 7 and the gas second refrigerant pipe 8 may be covered with a heat insulating material and integrated.

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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)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
PCT/JP2015/050130 2014-01-30 2015-01-06 空気調和機の室内ユニット WO2015115127A1 (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP15743820.1A EP3101353B1 (de) 2014-01-30 2015-01-06 Klimaanlageninnenraumeinheit
CN201580004692.XA CN105917173B (zh) 2014-01-30 2015-01-06 空调机的室内单元
AU2015212207A AU2015212207B2 (en) 2014-01-30 2015-01-06 Air conditioner indoor unit
ES15743820.1T ES2678749T3 (es) 2014-01-30 2015-01-06 Unidad interior de acondicionador de aire

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2014015377A JP5861723B2 (ja) 2014-01-30 2014-01-30 空気調和機の室内ユニット
JP2014-015377 2014-01-30

Publications (1)

Publication Number Publication Date
WO2015115127A1 true WO2015115127A1 (ja) 2015-08-06

Family

ID=53756705

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2015/050130 WO2015115127A1 (ja) 2014-01-30 2015-01-06 空気調和機の室内ユニット

Country Status (6)

Country Link
EP (1) EP3101353B1 (de)
JP (1) JP5861723B2 (de)
CN (1) CN105917173B (de)
AU (1) AU2015212207B2 (de)
ES (1) ES2678749T3 (de)
WO (1) WO2015115127A1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180283703A1 (en) * 2017-03-31 2018-10-04 Lg Electronics Inc. Indoor unit for air conditioner
US20210231343A1 (en) * 2017-12-05 2021-07-29 Daikin Industries, Ltd. Air conditioner

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6719394B2 (ja) * 2017-01-16 2020-07-08 日立ジョンソンコントロールズ空調株式会社 熱交換器の接続配管構造、及び、空気調和機
WO2018137418A1 (zh) * 2017-01-25 2018-08-02 珠海格力电器股份有限公司 蒸发器和空调器
WO2021079452A1 (ja) * 2019-10-24 2021-04-29 三菱電機株式会社 空気調和機の室内機
JP7227512B2 (ja) 2021-04-28 2023-02-22 ダイキン工業株式会社 配管連結構造及び冷凍サイクル装置
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
JP2023051346A (ja) 2021-09-30 2023-04-11 ダイキン工業株式会社 空気調和装置の室内ユニットおよび空気調和装置
JP7323819B2 (ja) * 2021-09-30 2023-08-09 ダイキン工業株式会社 室内熱交換器の製造方法
JP7545059B2 (ja) * 2021-09-30 2024-09-04 ダイキン工業株式会社 空調室内機
JP7518052B2 (ja) * 2021-09-30 2024-07-17 ダイキン工業株式会社 室内機および空気調和機
JP7133076B1 (ja) * 2021-09-30 2022-09-07 ダイキン工業株式会社 熱交換ユニットおよび空気調和機

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JP2000055452A (ja) * 1998-08-05 2000-02-25 Hitachi Ltd 空気調和機
JP2002156134A (ja) * 2001-10-15 2002-05-31 Hitachi Ltd ルームエアコン
JP2012042169A (ja) * 2010-08-23 2012-03-01 Mitsubishi Electric Corp 熱交換器及びこの熱交換器が搭載された空気調和機
JP2013155892A (ja) 2012-01-27 2013-08-15 Mitsubishi Electric Corp 熱交換器及びこれを備えた空気調和機

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JP2005055081A (ja) * 2003-08-05 2005-03-03 Matsushita Electric Ind Co Ltd 熱交換器及び熱交換器を備えた自動販売機
CZ21751U1 (cs) * 2010-10-08 2011-02-14 Lloyd Coils Europe, S.R.O. Pevný spoj medené a hliníkové trubky chladicího okruhu
CN202204212U (zh) * 2011-07-26 2012-04-25 广东美的电器股份有限公司 带铜铝接头的空调用换热器
WO2013084433A1 (ja) * 2011-12-09 2013-06-13 パナソニック株式会社 空気調和機の熱交換器

Patent Citations (4)

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Publication number Priority date Publication date Assignee Title
JP2000055452A (ja) * 1998-08-05 2000-02-25 Hitachi Ltd 空気調和機
JP2002156134A (ja) * 2001-10-15 2002-05-31 Hitachi Ltd ルームエアコン
JP2012042169A (ja) * 2010-08-23 2012-03-01 Mitsubishi Electric Corp 熱交換器及びこの熱交換器が搭載された空気調和機
JP2013155892A (ja) 2012-01-27 2013-08-15 Mitsubishi Electric Corp 熱交換器及びこれを備えた空気調和機

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20180283703A1 (en) * 2017-03-31 2018-10-04 Lg Electronics Inc. Indoor unit for air conditioner
US20210231343A1 (en) * 2017-12-05 2021-07-29 Daikin Industries, Ltd. Air conditioner

Also Published As

Publication number Publication date
EP3101353A1 (de) 2016-12-07
EP3101353A4 (de) 2017-05-17
JP2015140998A (ja) 2015-08-03
AU2015212207B2 (en) 2016-09-22
JP5861723B2 (ja) 2016-02-16
ES2678749T3 (es) 2018-08-17
EP3101353B1 (de) 2018-07-11
AU2015212207A1 (en) 2016-08-11
CN105917173B (zh) 2017-06-30
CN105917173A (zh) 2016-08-31

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