WO2017033273A1 - Unité extérieure de climatiseur - Google Patents

Unité extérieure de climatiseur Download PDF

Info

Publication number
WO2017033273A1
WO2017033273A1 PCT/JP2015/073799 JP2015073799W WO2017033273A1 WO 2017033273 A1 WO2017033273 A1 WO 2017033273A1 JP 2015073799 W JP2015073799 W JP 2015073799W WO 2017033273 A1 WO2017033273 A1 WO 2017033273A1
Authority
WO
WIPO (PCT)
Prior art keywords
outdoor unit
heat exchanger
air conditioner
bottom plate
discharge hole
Prior art date
Application number
PCT/JP2015/073799
Other languages
English (en)
Japanese (ja)
Inventor
彰彦 竹内
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 PCT/JP2015/073799 priority Critical patent/WO2017033273A1/fr
Priority to JP2017536105A priority patent/JP6486476B2/ja
Priority to CN201590001162.5U priority patent/CN206905148U/zh
Publication of WO2017033273A1 publication Critical patent/WO2017033273A1/fr

Links

Images

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
    • F24F1/14—Heat exchangers specially adapted for separate outdoor units
    • F24F1/16—Arrangement or mounting thereof

Definitions

  • the present invention relates to an outdoor unit of an air conditioner, and particularly to a bottom plate of a casing of the outdoor unit.
  • Some conventional air conditioners are equipped with heat exchangers that use aluminum for fins and piping.
  • the material of the bottom plate is electrically more precious than aluminum. That is, if the metal has a low ionization tendency, pitting corrosion of the aluminum piping occurs.
  • a metal or resin supporting part that is electrically base on aluminum is interposed between the heat exchanger and the bottom plate.
  • moisture such as rain water and drain water may accumulate in the support component, and the lower end portion of the heat exchanger may cause electrolytic corrosion due to metal components and acidic components contained in the accumulated moisture.
  • Patent Document 1 describes a structure in which a drainage hole is provided in the support component, and water in the support component is drained from the drainage hole, thereby preventing a puddle from being generated in the support component. .
  • the substance discharged from the drain hole of the support part stays and accumulates in the nearby bottom plate, and the accumulated solid matter can contact the bottom plate and the lower end of the heat exchanger through the drain hole provided in the support part. There is sex.
  • the solid matter contains moisture in this state, there is a problem in that the bottom plate and the lower end portion of the heat exchanger are in electrical communication, and electrolytic corrosion occurs.
  • solids such as dust and corrosives from surrounding metal parts may accumulate around the support parts of the bottom plate. In this case as well, heat exchange with the bottom plate is caused by the accumulated solids through the drain holes. There was a problem that the lower end of the vessel was in electrical communication and electrolytic corrosion occurred.
  • the present invention has been made against the background of the above-described problems. Even when a drainage hole is provided in the support component, a highly reliable outdoor unit of an air conditioner that can suppress electrolytic corrosion at the lower end of the heat exchanger. The purpose is to obtain.
  • An outdoor unit of an air conditioner according to the present invention includes a casing, a heat exchanger disposed in the casing, and a component that covers and supports the lower end portion of the heat exchanger from below, and the water that enters the interior
  • a support component having a drainage hole for draining water to the outside, and an insulating sheet interposed between the support component and the bottom plate of the casing and covering the bottom surface of the support component.
  • the present invention it is possible to obtain a highly reliable outdoor unit of an air conditioner that can suppress electrolytic corrosion at the lower end of the heat exchanger due to the presence of the insulating sheet even when the drainage hole is provided in the support component.
  • FIG. 7 is a main part schematic enlarged view of the AA cross section of FIG. 6.
  • FIG. 9 is a schematic enlarged view of a main part of the AA cross section of FIG. 6 as in FIG. 7, and shows a state where a deposit 500 is deposited around the support component 201.
  • FIG. 10 is a main part schematic enlarged view of the BB cross section of FIG. 9.
  • FIG. 1 is a perspective view of an outdoor unit 100 for an air-conditioning apparatus according to Embodiment 1 of the present invention.
  • FIG. 2 is an exploded perspective view of the outdoor unit 100 for an air-conditioning apparatus according to Embodiment 1 of the present invention.
  • the casing 100 a of the outdoor unit 100 includes a top plate 101, a front plate 102, a side plate 103, and a bottom plate 300, and further includes a fan grill 104, a connection terminal protective cover 105, and the like.
  • the refrigerant pipe protective cover 106 is provided.
  • a heat exchanger 200, a compressor 110, a partition plate 111, a fan motor 112, a fan motor support member 113, a propeller fan 114, and the like are mainly arranged inside the casing 100a of the outdoor unit 100. ing.
  • the inside of the casing 100a is divided into a machine room 150a and a blower room 150b by a partition plate 111, and a compressor 110 and the like are arranged in the machine room 150a.
  • a member 113, a propeller fan 114, and the like are disposed.
  • the bottom plate 300 has a box shape with an upper surface opened, and constitutes the bottom of the outdoor unit 100. Parts such as the heat exchanger 200 accommodated in the outdoor unit 100 are installed on the bottom plate 300.
  • the heat exchanger 200 is formed in a substantially L shape in plan view across the left side surface and the back surface of the blower chamber 150b, and heat exchanger support parts 201 described later are provided at two upper and lower ends on the left front side. (201a, 201b) are provided. Next, the configuration of the heat exchanger 200 will be described in detail with reference to FIG.
  • FIG. 3 is a schematic diagram of the heat exchanger 200 installed in the outdoor unit 100 of the air conditioner according to Embodiment 1 of the present invention.
  • FIG. 3 shows a state before the heat exchanger 200 is bent into an L shape.
  • the heat exchanger 200 is arranged in parallel with the header pipes 250 and 251 extending in the vertical direction spaced apart from each other and the header pipes 250 and 251 spaced apart in the vertical direction.
  • a plurality of corrugated radiating fins 253 disposed between the adjacent flat tubes 252.
  • the flat tube 252 is a heat transfer tube in which a flow path for circulating a refrigerant is provided, and is arranged extending in the horizontal direction. Both ends of the flat tube 252 are joined to the header pipes 250 and 251 by, for example, a brazing material so that the inside of the header pipe communicates with each flow path of each flat tube 252.
  • a header pipe partition plate 257 is provided in the header pipe 250 so that efficient heat exchange is performed inside the heat exchanger 200.
  • the header pipe partition plate 257 moves the header pipe 250 up and down. It is partitioned.
  • the connection pipe 254 is connected to the upper side, and the connection pipe 255 is connected to the lower room.
  • the connection pipes 254 and 255 are connected to a refrigerant channel pipe (not shown).
  • the structure of the heat exchanger 200 is not limited to this structure.
  • a flat plate-like fin may be used instead of the corrugated fin.
  • the structure which provided the header pipe partition plate 257 in the header pipe 250 was shown, it is good also as a structure where the header pipe partition plate 257 is not provided, or a structure provided with two or more header pipe partition plates 257. Good.
  • the header pipes 250 and 251, the flat tubes 252, the radiation fins 253, the connection pipes 254 and 255, the side plates 256 and the header pipe partition plate 257 are all made of aluminum. Note that aluminum includes aluminum alloy.
  • the lower end 251a and the upper end 251b of the header pipe 251 are covered with heat exchanger support parts 201a and 201b as shown in FIG.
  • the support component 201 is made of a base metal or resin that is lower than aluminum, and serves to avoid contact between the header pipe 250 and the bottom plate 300, in other words, contact between the lower end portion of the heat exchanger and the bottom plate 300.
  • FIG. 2 shows an example in which two support components 201 are installed above and below one end side (left end side) of the heat exchanger 200 in the left-right direction, but they are also installed on the other end side (right end side). Also good.
  • the support component 201 supports the heat exchanger 200 and avoids contact between the heat exchanger 200 and the bottom plate 300, and the number and position are not particularly limited.
  • FIG. 4 is a schematic perspective view of support component 201 of outdoor unit 100 for the air conditioner according to Embodiment 1 of the present invention.
  • FIG. 5 is a plan view of support component 201 of outdoor unit 100 for the air conditioner according to Embodiment 1 of the present invention.
  • the support component 201 includes a bottom surface portion 202a and a side surface portion 202b provided on the outer periphery of the bottom surface portion 202a, and has a bottomed cylindrical shape with one end closed.
  • a drainage hole 210 is formed in the side surface portion 202b of the support component 201 for discharging unnecessary substances such as moisture flowing into the support component 201 to the outside. By providing the drain hole 210, corrosion of the header pipe 250 and refrigerant leakage due to moisture or the like flowing in through the gap between the support components 201 can be suppressed.
  • FIG. 6 is a schematic plan view in which the bottom plate 300, the support component 201, and their related members of the outdoor unit 100 for an air conditioner according to Embodiment 1 of the present invention are extracted.
  • the support component 201 and the heat exchanger 200 are indicated by broken lines.
  • the bottom plate 300 is formed with a main discharge hole 301 that is a first discharge hole for discharging unnecessary substances such as rainwater flowing into the bottom plate 300.
  • the main discharge hole 301 is provided below the heat exchanger 200.
  • An insulating sheet 310 is disposed on the bottom plate 300. The insulating sheet 310 will be described with reference to FIGS.
  • FIG. 7 is a schematic enlarged view of the main part of the AA cross section of FIG.
  • the insulating sheet 310 is interposed between the support component 201 and the bottom plate 300 and is provided so as to cover the bottom surface of the support component 201.
  • the insulating sheet 310 is configured in a plate shape having a size larger than the bottom surface of the support component 201 and is installed so as to be in contact with the entire bottom surface of the support component 201.
  • the insulating sheet 310 is provided to prevent the lower end portion 251 a of the header pipe 250 and the bottom plate 300 of the casing 100 a from conducting through the drain hole 210.
  • the material of the insulating sheet 310 is an electrical insulator such as butyl rubber or polyester. Moreover, in order for the insulating sheet 310 to fix the position with respect to the baseplate 300, it is preferable to comprise the grounding surface with the baseplate 300 with an adhesive.
  • FIG. 8 is a schematic enlarged view of the main part of the AA cross section of FIG. 6 as in FIG. 7, and shows a state in which the deposit 500 is deposited around the support component 201.
  • the deposit 500 is a solid in which dust or sand containing moisture in the air is deposited, or a fluid such as rain water is accumulated.
  • the deposit 500 is integrally deposited on the inner side and the outer side of the side surface portion 202 b of the support component 201 through the drainage hole 210.
  • the deposit 500 is not in the initial stage of use, it can be accumulated and flown in with the use of an air conditioner and the passage of years.
  • the deposit 500 becomes a conduction path, and the bottom plate 300 and the header pipe 251, which are different metals, are conducted through the drain hole 210, and electric corrosion occurs.
  • the deposit 500 is generated due to the installation of the insulating sheet 310, if the deposit 500 is smaller than the size of the insulating sheet 310, conduction between the bottom plate 300 and the header pipe 251 can be prevented. Corrosion can be suppressed.
  • the installation of the insulating sheet 310 can increase the spatial distance between the bottom plate 300 and the lower end portion 251a of the header pipe 251 and increase the insulation distance between them.
  • the outdoor unit 100 for an air conditioner that is highly reliable over a long period of time can be provided.
  • FIG. FIG. 9 is a schematic plan view of the bottom plate 300 of the outdoor unit 100 for an air conditioner according to Embodiment 2 of the present invention.
  • FIG. 10 is a schematic enlarged view of the main part of the BB cross section of FIG.
  • the second embodiment is characterized in that the bottom plate 300 of the first embodiment shown in FIG. 6 further includes a sub discharge hole 350 that is a second discharge hole configured by a through hole. That is, the bottom plate 300 is provided with a main discharge hole 301 and a sub discharge hole 350, and the sub discharge hole 350 is disposed in the vicinity of the insulating sheet 310, in other words, below the periphery of the insulating sheet 310. And In the second embodiment, the sub discharge hole 350 is provided to further enhance the effect of suppressing the generation of the deposit 500.
  • the effect of suppressing the occurrence of the deposit 500 is affected by the position of the sub discharge hole 350. Specifically, when the horizontal distance ⁇ from the end of the insulating sheet 310 on the sub discharge hole 350 side to the end of the sub discharge hole 350 on the insulating sheet 310 side is “0”, that is, the end of the insulating sheet 310 and the sub discharge hole 350 side. When the end of the discharge hole 350 overlaps, the effect of suppressing the generation of the deposit 500 is the highest.
  • the distance ⁇ is negative, that is, when the insulating sheet 310 is covered on the sub discharge hole 350, the drainage capacity of the sub discharge hole 350 is reduced, and the effect of suppressing the generation of the deposit 500 is reduced. For this reason, the arrangement in which the distance ⁇ is negative is inappropriate.
  • the insulating sheet 310 is often bonded to the bottom plate 300 with an adhesive substance in order to fix the installation position of the insulating sheet 310. However, when the distance ⁇ is negative, the adhesive bonding is peeled off.
  • the distance ⁇ is preferably set to about 0 mm to 3 mm.
  • the same effects as those of the first embodiment can be obtained, and the following effects can be obtained by further providing the sub discharge hole 350 in the bottom plate 300. That is, it is possible to promote the discharge of unnecessary materials (rain water and foreign matter) in the vicinity of the support component 201 and further suppress the generation of the deposit 500.
  • the horizontal distance ⁇ between the sub discharge hole 350 and the insulating sheet 310 is set in the range of 0 mm to 3 mm, the drainage ability of the sub discharge hole 350 and the effect of suppressing the generation of the deposit 500 can be obtained. it can.
  • 100 outdoor unit 100a casing, 101 top plate, 102 front plate, 103 side plate, 104 fan grill, 105 connection terminal protection cover, 106 refrigerant pipe protection cover, 110 compressor, 111 partition plate, 112 fan motor, 113 fan motor Support member, 114 propeller fan, 150a machine room, 150b blower room, 200 heat exchanger, 201 heat exchanger support part, 201a heat exchanger support part, 201b heat exchanger support part, 202a bottom part, 202b side part, 210 Drain hole, 250 header pipe, 251 header pipe, 251a lower end, 251b upper end, 252 flat tube, 253 heat radiation fin, 254 connection piping, 255 connection piping, 256 side plate, 257 header pipe partition Plate, 300 a bottom plate, 301 main discharge hole, 310 insulation sheet, 350 sub-discharge hole, 500 deposits.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Other Air-Conditioning Systems (AREA)

Abstract

L'invention concerne une unité extérieure de climatiseur qui est pourvue : d'un boîtier ; d'un échangeur de chaleur qui est disposé dans le boîtier ; d'un élément de support qui porte une partie d'extrémité inférieure de l'échangeur de chaleur en recouvrant la partie d'extrémité inférieure depuis le côté inférieur, et qui possède un trou de drainage pour drainer l'eau vers l'extérieur, ladite eau étant entrée à l'intérieur ; d'une feuille isolante qui est disposée entre l'élément de support et une plaque inférieure du boîtier, et qui recouvre la surface inférieure de l'élément de support.
PCT/JP2015/073799 2015-08-25 2015-08-25 Unité extérieure de climatiseur WO2017033273A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
PCT/JP2015/073799 WO2017033273A1 (fr) 2015-08-25 2015-08-25 Unité extérieure de climatiseur
JP2017536105A JP6486476B2 (ja) 2015-08-25 2015-08-25 空気調和機の室外機
CN201590001162.5U CN206905148U (zh) 2015-08-25 2015-08-25 空调机的室外机

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2015/073799 WO2017033273A1 (fr) 2015-08-25 2015-08-25 Unité extérieure de climatiseur

Publications (1)

Publication Number Publication Date
WO2017033273A1 true WO2017033273A1 (fr) 2017-03-02

Family

ID=58099688

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2015/073799 WO2017033273A1 (fr) 2015-08-25 2015-08-25 Unité extérieure de climatiseur

Country Status (3)

Country Link
JP (1) JP6486476B2 (fr)
CN (1) CN206905148U (fr)
WO (1) WO2017033273A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0432698A (ja) * 1990-05-28 1992-02-04 Showa Alum Corp 熱交換器の製造方法
JPH06129791A (ja) * 1992-10-15 1994-05-13 Sanden Corp 熱交換器とそのブラケットの固定方法
JP2012225563A (ja) * 2011-04-19 2012-11-15 Mitsubishi Electric Corp ヒートポンプ装置の熱源機、空気調和機の室外機
JP2013139919A (ja) * 2011-12-28 2013-07-18 Daikin Industries Ltd 冷凍装置の室外ユニット

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5401685B2 (ja) * 2008-12-25 2014-01-29 三菱電機株式会社 空気調和機の室外機
JP2010164263A (ja) * 2009-01-16 2010-07-29 Mitsubishi Electric Corp 空気調和機の室外ユニットおよび空気調和機
JP6024111B2 (ja) * 2012-02-06 2016-11-09 ダイキン工業株式会社 冷凍装置の室外ユニット

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0432698A (ja) * 1990-05-28 1992-02-04 Showa Alum Corp 熱交換器の製造方法
JPH06129791A (ja) * 1992-10-15 1994-05-13 Sanden Corp 熱交換器とそのブラケットの固定方法
JP2012225563A (ja) * 2011-04-19 2012-11-15 Mitsubishi Electric Corp ヒートポンプ装置の熱源機、空気調和機の室外機
JP2013139919A (ja) * 2011-12-28 2013-07-18 Daikin Industries Ltd 冷凍装置の室外ユニット

Also Published As

Publication number Publication date
JPWO2017033273A1 (ja) 2018-03-29
JP6486476B2 (ja) 2019-03-20
CN206905148U (zh) 2018-01-19

Similar Documents

Publication Publication Date Title
EP2827691B1 (fr) Armoire pour appareil électronique de puissance
JP2011145029A (ja) 空気調和機
JP6785877B2 (ja) 空気調和機の室外機およびそれを備えた空気調和機
KR20180096080A (ko) 제습기
JP6024111B2 (ja) 冷凍装置の室外ユニット
CN113885274B (zh) 一种影视灯
JP4479207B2 (ja) 空気調和機の室外ユニット
US10704844B2 (en) Heat exchanger
JP2010190513A (ja) 空気調和機の室外機
JP7453596B2 (ja) 室内機および空気調和機
JP6486476B2 (ja) 空気調和機の室外機
JP5772590B2 (ja) 冷凍装置の室外ユニット
JP6618624B2 (ja) 空気調和機の室外機
JP5931043B2 (ja) 空気調和機の室外機
US20210003293A1 (en) Compressor cover, outdoor unit of air-conditioning apparatus, and air-conditioning apparatus
JP7170895B2 (ja) 空気調和機の室外ユニット
JP6967483B2 (ja) 空気調和機及び室内機
CN210894546U (zh) 一种电气自动化的电子仪器检测箱
EP3730851B1 (fr) Unité extérieure pour climatiseur
KR20090126810A (ko) 에어컨용 실외기
JP6790221B2 (ja) 空気調和機の室外機
JP2002162060A (ja) 空気調和機
JP6785842B2 (ja) 空気調和装置
JP2024031697A (ja) 室内機および空気調和機
JP5232667B2 (ja) 天井埋込型空気調和装置

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 15902243

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2017536105

Country of ref document: JP

Kind code of ref document: A

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 15902243

Country of ref document: EP

Kind code of ref document: A1