EP2716982A2 - Unité extérieure de climatiseur - Google Patents

Unité extérieure de climatiseur Download PDF

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Publication number
EP2716982A2
EP2716982A2 EP13186989.3A EP13186989A EP2716982A2 EP 2716982 A2 EP2716982 A2 EP 2716982A2 EP 13186989 A EP13186989 A EP 13186989A EP 2716982 A2 EP2716982 A2 EP 2716982A2
Authority
EP
European Patent Office
Prior art keywords
operating
flange portion
valve bracket
dish
valve
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.)
Withdrawn
Application number
EP13186989.3A
Other languages
German (de)
English (en)
Other versions
EP2716982A3 (fr
Inventor
Tomomitsu Yamaguchi
Yasuhiro Naito
Hironori Mori
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 Heavy Industries Thermal Systems Ltd
Original Assignee
Mitsubishi Heavy Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Publication of EP2716982A2 publication Critical patent/EP2716982A2/fr
Publication of EP2716982A3 publication Critical patent/EP2716982A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • F24F1/26—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
    • F24F1/06—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
    • 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
    • F24F1/42—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger characterised by the use of the condensate, e.g. for enhanced cooling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • F24F1/56—Casing or covers of separate outdoor units, e.g. fan guards
    • 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
    • F24F13/222—Means for preventing condensation or evacuating condensate for evacuating condensate

Definitions

  • the present invention relates to an air conditioner outdoor unit in which an operating-valve bracket is installed on a baseplate of the outdoor unit.
  • an operating-valve bracket that is provided with operating valves to which refrigerant pipes are connected is installed inside a machine chamber in the outdoor unit so as to be exposed to the outside from a side panel.
  • this operating-valve bracket is fixed to a flange portion that is provided on the periphery of a baseplate of the outdoor unit so as to extend vertically upward.
  • the operating-valve bracket is installed such that the operating valves are exposed to the outside from the side panel.
  • two valves are vertically arranged in a slanted direction, and a gas-side refrigerant pipe and a liquid-side refrigerant pipe that are connected to an indoor unit can be connected to these operating valves.
  • the operating valves and the outer surface of the operating-valve bracket are covered with a service cover (also referred to as side cover) that is detachably attached to a side panel of the outdoor unit.
  • the gas-side operating valve and the liquid-side operating valve are provided on the operating-valve bracket.
  • the operating-valve bracket When a low-pressure refrigerant is circulated through the operating valves, the operating-valve bracket is cooled together with the operating valves, and dew condensation water is produced on the surfaces thereof.
  • the dew condensation water flows downward along the surface of the operating-valve bracket and, in some cases, splashes or leaks out from a portion where the operating-valve bracket is installed to the outside of the baseplate beyond the flange portion provided at the periphery of the base plate, whereas the dew condensation water flowing downward should normally be recovered in the baseplate with the flange portion which extends upward at the periphery thereof.
  • the present invention has been made in view of such circumstances, and an object thereof is to provide an air conditioner outdoor unit capable of reliably recovering, in the baseplate, dew condensation water that is produced through dew condensation on the surfaces of the operating-valve bracket and on the operating valves and that flows downward on the surfaces.
  • the air conditioner outdoor unit of the present invention employs the following solutions.
  • the present invention provides an air conditioner outdoor unit in which a flange portion is provided on a periphery of a baseplate so as to extend vertically upward from the periphery, and an operating-valve bracket is fixedly attached to the flange portion, the air conditioner outdoor unit comprising a pair of dish-shaped projection portions provided on one of a side surface of the operating-valve bracket at fastening sites which are fixed to the flange portion and a side surface of the flange portion at fastening sites which are fixed to the operating-valve bracket so that the dish-shaped projection portions project toward the side surface of the other by a certain dimension, the pair of dish-shaped projection portions having a predetermined distance therebetween, wherein the operating-valve bracket is fixed to the flange portion such that a space is formed between the side surface of the operating-valve bracket and the side surface of the flange
  • the pair of dish-shaped projection portions having the predetermined space therebetween, are provided on one of the side surface of the operating-valve bracket at fastening sites which are to be fixed to the flange portion and the side surface of the flange portion at fastening sites which are to be fixed to the operating-valve bracket, so as to project toward the side surface of the other by a fixed dimension, and the operating-valve bracket is fixed to the flange portion such that the certain space is formed between the side surface of the operating-valve bracket and the side surface of the flange portion by the dish-shaped projection portions.
  • the operating-valve bracket can be fixed to the flange portion on the periphery of the baseplate, such that a space corresponding to the projection dimension of the dish-shaped projection portions is formed between the side surface of the flange portion on the periphery of the baseplate and the side surface of the operating-valve bracket, which is fixed to the flange portion. Then, dew condensation water that is produced through dew condensation occurring on the surface of the operating-valve bracket when the operating-valve bracket is cooled by the operating valves and that drips down can be recovered in the baseplate via that space.
  • the dew condensation water produced through dew condensation on the surface of the operating-valve bracket can be reliably recovered in the baseplate and discharged, thus making it possible to prevent a situation in which the dew condensation water splashes or leaks out to the outside from the side surface on which the operating valves are provided.
  • the pair of dish-shaped projection portions are provided at lower portions on an outer surface of the operating-valve bracket so as to have the predetermined distance therebetween.
  • the pair of dish-shaped projection portions having a predetermined distance therebetween, are provided at lower portions on the outer surface of the operating-valve bracket.
  • dew condensation water produced through dew condensation on the surface of the operating-valve bracket can be recovered in the baseplate via the space, thus making it possible to reliably prevent the dew condensation water from splashing or leaking out to the outside from the side surface on which the operating valves are provided.
  • a portion of the flange portion between the pair of fastening sites at which the operating-valve bracket is fastened bulges outward by a certain dimension.
  • a portion of the flange portion between the pair of fastening sites at which the operating-valve bracket is fastened bulges outward by the certain dimension.
  • the space formed between the side surface of the flange portion and the side surface of the operating-valve bracket can be made to correspond to the sum of the projection dimension of the dish-shaped projection portions and the outward-bulging dimension of the flange portion. Therefore, the space for guiding dew condensation water produced through dew condensation on the surface of the operating-valve bracket to the inside of the baseplate can be made even larger, thus facilitating the recovery of the dew condensation water in the baseplate.
  • the pair of dish-shaped projection portions are provided on an inner surface of the flange portion so as to have the predetermined distance therebetween.
  • the pair of dish-shaped projection portions having the predetermined distance therebetween, are provided on the inner surface of the flange portion.
  • the pair of dish-shaped projection portions are provided at the fastening sites on the flange portion so as to project from the inner surface thereof toward the operating-valve bracket by the certain dimension, and the operating-valve bracket is fixed to the flange portion via the dish-shaped projection portions, thereby making it possible to form a space corresponding to the projection dimension of the dish-shaped projection portions, between the side surfaces of the flange portion and the operating-valve bracket.
  • dew condensation water produced through dew condensation on the surface of the operating-valve bracket can be recovered in the baseplate via the space, and the dew condensation water can be reliably prevented from splashing or leaking out to the outside of the side surface on which the operating valves are provided.
  • the present invention it is possible to fix the operating-valve bracket to the flange portion on the periphery of the baseplate, forming a space corresponding to the projection dimension of the dish-shaped projection portions, between the side surface of the flange portion on the periphery of the baseplate and the side surface of the operating-valve bracket fixed to the flange portion. Furthermore, dew condensation water that is produced through dew condensation occurring on the surface of the operating-valve bracket when the operating-valve bracket is cooled by operating valves and that drips down can be recovered in the baseplate via the space.
  • the dew condensation water produced through dew condensation on the surface of the operating-valve bracket can be reliably recovered in the baseplate and discharged, thus making it possible to prevent a situation in which the dew condensation water splashes or leaks out to the outside from the side surface on which the operating valves are provided.
  • FIG. 1 is a perspective view showing an air conditioner outdoor unit with a service panel removed from the outdoor unit according to the embodiment of the present invention.
  • Fig. 2 is a perspective view showing a state in which an operating-valve bracket has been installed on a baseplate.
  • Fig. 3 is a perspective view of the operating-valve bracket.
  • Fig. 4 is a longitudinal sectional view of an installation portion where the operating-valve bracket is installed.
  • An air conditioner outdoor unit 1 has a chassis 2 comprising a baseplate 3 that is provided with a plurality of mounting legs 4 on a bottom surface thereof, a front panel 5 that is provided with an outlet grille 6 and that is installed on the baseplate 3, right and left side panels 7, 8, and a top panel 9.
  • the rear side of the chassis 2 is almost wholly open, and a plate-fin-tube outdoor heat exchanger is installed in alignment with the opening.
  • the inside of the chassis 2 is separated into a heat exchanger chamber and a machine chamber by a partition plate.
  • the heat exchanger chamber includes the above-described outdoor heat exchanger and an air-blowing fan that makes outside air circulate through the outdoor heat exchanger and that blows it out to the front outside from the outlet grille 6.
  • the machine chamber includes a compressor, a four-way switching valve, a control box, an operating-valve bracket 10, and a terminal block 11 to which a power line and a communication line are connected.
  • the operating-valve bracket 10 and the terminal block 11 are installed so as to be exposed to the outside from the side panel 7, and the outer surface side thereof is covered with a service cover (also referred to as side cover) (not shown) that is detachably attached to the side panel 7 of the outdoor unit 1.
  • a service cover also referred to as side cover
  • the baseplate 3 of the chassis 2 is a horizontally elongated rectangular steel plate, portions for installing the outdoor heat exchanger, the air-blowing fan, and the compressor are formed thereon, and a flange portion 3A that extends vertically upward and has a predetermined height is formed on the periphery thereof.
  • the operating-valve bracket 10 is fixed to a portion of the flange portion 3A located at the right side of the baseplate 3, via fastening means, such as screws.
  • the operating-valve bracket 10 is a vertically elongated rectangular steel part.
  • the valves are fixed to the operating-valve bracket 10 by means of screws 14 so that the operating valves 12 and 13 are vertically arranged in a slanted direction.
  • the gas-side operating valve 12 and the liquid-side operating valve 13 are provided with refrigerant connection pipes 16 and 15 to be connected to components of the outdoor unit 1.
  • a pair of dish-shaped projection portions 17 that are provided with a predetermined distance therebetween and that project toward the flange portion 3A by a certain dimension are formed integrally with the operating-valve bracket 10, and the projection portions are provided at fastening sites to be fixed to the flange portion 3A, which are located at right and left lower portions on the outer surface of the operating-valve bracket 10.
  • the pair of dish-shaped projection portions 17 have fastening holes 18 for fastening screws.
  • dew condensation water that is produced through dew condensation occurring on the surfaces of the operating-valve bracket 10, the gas-side operating valve 12, and the liquid-side operating valve 13 and that flows downward along the surface of the operating-valve bracket 10 can be recovered in the baseplate 3 via the space S.
  • the outdoor unit 1 is usually located outside, even if drainage water produced in the outdoor unit 1 is directly discharged to the outside, this causes little problem.
  • a discharge hole is generally provided at a specified location on the baseplate 3, and drainage water is discharged therefrom.
  • the space S corresponding to the projection dimension of the dish-shaped projection portions 17, which are provided on the operating-valve bracket 10, can be formed between the side surface of the flange portion 3A on the periphery of the baseplate 3 and the side surface of the operating-valve bracket 10 to be fixed to the flange portion 3A, and the operating-valve bracket 10 can be fixed to the flange portion 3A on the periphery of the baseplate 3.
  • dew condensation water that is produced through dew condensation occurring on the surface of the operating-valve bracket 10 when the operating-valve bracket 10 is cooled by the gas-side operating valve 12 and the liquid-side operating valve 13 and that drips down can be recovered in the baseplate 3 via the space S.
  • dew condensation water produced through dew condensation on the surface of the operating-valve bracket 10 can be reliably recovered in the baseplate 3, thus making it possible to prevent a situation in which the dew condensation water splashes or leaks out to the outside from the side surface on which the operating valves 12, 13 are provided.
  • the pair of the dish-shaped projection portions 17, having a predetermined distance therebetween, are provided at lower portions on the outer surface of the operating-valve bracket 10.
  • dew condensation water produced through dew condensation on the surface of the operating-valve bracket 10 can be recovered in the baseplate 3 via the space S, and the dew condensation water can be reliably prevented from splashing or leaking out to the outside from the side surface on which the operating valves 12, 13 are provided.
  • the space S corresponding to the projection dimension of the dish-shaped projection portions can be formed between the side surfaces of the flange portion 3A and the operating-valve bracket 10. Therefore, dew condensation water produced through dew condensation on the surface of the operating-valve bracket 10 can be recovered in the baseplate 3 via the space S, and the dew condensation water can be prevented from splashing or leaking out to the outside from the side surface on which the operating valves 12, 13 are provided.
  • the space S formed between the side surface of the flange portion 3A and the side surface of the operating-valve bracket 10 can be made to correspond to the sum of the projection dimension of the dish-shaped projection portions 17 and the outward-bulging dimension of the flange portion 3A.
  • the space S for guiding dew condensation water produced through dew condensation on the surface of the operating-valve bracket 10 to the inside of the baseplate 3 can be made even larger, thus facilitating the recovery of the dew condensation water in the baseplate 3.
  • the present invention is not limited to the inventions according to the above-described embodiments and can be appropriately modified without departing from the scope of the present invention.
  • the operating-valve bracket 10 is fixed to the flange portion 3A with screws, screws are not necessarily used for fixing the bracket, and, another means, for example, welding, can be used.
  • the shape of the operating-valve bracket 10 and the specific structure of the gas-side operating valve 12 and the liquid-side operating valve 13 are not limited to those of the above-described embodiments, and various modifications can be adopted.

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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)
EP13186989.3A 2012-10-04 2013-10-02 Unité extérieure de climatiseur Withdrawn EP2716982A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2012222319A JP6099925B2 (ja) 2012-10-04 2012-10-04 空気調和機の室外ユニット

Publications (2)

Publication Number Publication Date
EP2716982A2 true EP2716982A2 (fr) 2014-04-09
EP2716982A3 EP2716982A3 (fr) 2018-03-28

Family

ID=49303788

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13186989.3A Withdrawn EP2716982A3 (fr) 2012-10-04 2013-10-02 Unité extérieure de climatiseur

Country Status (2)

Country Link
EP (1) EP2716982A3 (fr)
JP (1) JP6099925B2 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106468460A (zh) * 2015-08-13 2017-03-01 Lg电子株式会社 空气调节器的室内机
EP3136008A1 (fr) * 2015-08-25 2017-03-01 Lg Electronics Inc. Unité d'extérieur pour climatiseur
CN107076433A (zh) * 2014-12-26 2017-08-18 三菱电机株式会社 室外机
EP3399249A4 (fr) * 2016-04-04 2019-02-27 Mitsubishi Heavy Industries Thermal Systems, Ltd. Unité extérieure de système de climatisation
CN111174340A (zh) * 2020-01-03 2020-05-19 珠海格力电器股份有限公司 阀门安装装置、室外机及空调器
CN113853501A (zh) * 2019-05-31 2021-12-28 三菱电机株式会社 空调装置

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106524333B (zh) * 2016-11-17 2022-02-01 珠海格力电器股份有限公司 一种阀门支架的安装结构及空调室外机
JPWO2020157826A1 (ja) * 2019-01-29 2021-09-09 三菱電機株式会社 空気調和装置の室外機
JP7300313B2 (ja) * 2019-05-23 2023-06-29 高砂熱学工業株式会社 配管の接続構造、配管の接続方法
CN115151761B (zh) * 2020-02-28 2024-01-02 三菱电机株式会社 室外机

Citations (1)

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Publication number Priority date Publication date Assignee Title
JPH10259932A (ja) 1997-03-19 1998-09-29 Fujitsu General Ltd 空気調和機の室外機

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JPS63108139A (ja) * 1986-10-27 1988-05-13 Sanyo Electric Co Ltd 熱交換ユニツト
JPH05133565A (ja) * 1991-11-15 1993-05-28 Matsushita Electric Ind Co Ltd 空気調和機の室外ユニツト
JPH06341680A (ja) * 1993-05-31 1994-12-13 Sharp Corp 分離型空気調和機
JP3565148B2 (ja) * 2000-08-09 2004-09-15 ダイキン工業株式会社 空気調和機の室外機
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JP2010281461A (ja) * 2009-06-02 2010-12-16 Sharp Corp 空気調和機の室外機

Patent Citations (1)

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Publication number Priority date Publication date Assignee Title
JPH10259932A (ja) 1997-03-19 1998-09-29 Fujitsu General Ltd 空気調和機の室外機

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107076433A (zh) * 2014-12-26 2017-08-18 三菱电机株式会社 室外机
CN107076433B (zh) * 2014-12-26 2019-08-27 三菱电机株式会社 室外机
CN106468460A (zh) * 2015-08-13 2017-03-01 Lg电子株式会社 空气调节器的室内机
CN106468460B (zh) * 2015-08-13 2019-05-14 Lg电子株式会社 空气调节器的室内机
US10302314B2 (en) 2015-08-13 2019-05-28 Lg Electronics Inc. Indoor unit of air conditioner
EP3136008A1 (fr) * 2015-08-25 2017-03-01 Lg Electronics Inc. Unité d'extérieur pour climatiseur
US10465922B2 (en) 2015-08-25 2019-11-05 Lg Electronics Inc. Outdoor unit for air conditioner
EP3399249A4 (fr) * 2016-04-04 2019-02-27 Mitsubishi Heavy Industries Thermal Systems, Ltd. Unité extérieure de système de climatisation
CN113853501A (zh) * 2019-05-31 2021-12-28 三菱电机株式会社 空调装置
EP3978822A4 (fr) * 2019-05-31 2022-06-08 Mitsubishi Electric Corporation Dispositif de climatisation
US11971202B2 (en) 2019-05-31 2024-04-30 Mitsubishi Electric Corporation Air-conditioning apparatus
CN111174340A (zh) * 2020-01-03 2020-05-19 珠海格力电器股份有限公司 阀门安装装置、室外机及空调器

Also Published As

Publication number Publication date
EP2716982A3 (fr) 2018-03-28
JP2014074543A (ja) 2014-04-24
JP6099925B2 (ja) 2017-03-22

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