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WO2013118583A1 - Outdoor unit for refrigeration device - Google Patents

Outdoor unit for refrigeration device Download PDF

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Publication number
WO2013118583A1
WO2013118583A1 PCT/JP2013/051394 JP2013051394W WO2013118583A1 WO 2013118583 A1 WO2013118583 A1 WO 2013118583A1 JP 2013051394 W JP2013051394 W JP 2013051394W WO 2013118583 A1 WO2013118583 A1 WO 2013118583A1
Authority
WO
WIPO (PCT)
Prior art keywords
cap
outdoor unit
heat exchanger
header collecting
collecting pipe
Prior art date
Application number
PCT/JP2013/051394
Other languages
French (fr)
Japanese (ja)
Inventor
貴司 小野
啓太郎 星加
友洋 升井
拓也 上総
順一 下田
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 AU2013218945A priority Critical patent/AU2013218945B2/en
Priority to KR1020147024748A priority patent/KR101656163B1/en
Priority to CN201380007067.1A priority patent/CN104081129B/en
Priority to US14/376,109 priority patent/US20140374062A1/en
Priority to EP13746777.5A priority patent/EP2813770B1/en
Publication of WO2013118583A1 publication Critical patent/WO2013118583A1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • 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
    • 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
    • F24F1/36—Drip trays for outdoor units
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
    • F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
    • F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
    • F28D1/053—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
    • F28D1/0535—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight the conduits having a non-circular cross-section
    • F28D1/05366—Assemblies of conduits connected to common headers, e.g. core type radiators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F17/00—Removing ice or water from heat-exchange apparatus
    • F28F17/005—Means for draining condensates from heat exchangers, e.g. from evaporators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
    • F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
    • F28F21/081—Heat exchange elements made from metals or metal alloys
    • F28F21/084—Heat exchange elements made from metals or metal alloys from aluminium or aluminium alloys
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/0202—Header boxes having their inner space divided by partitions
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/0068—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for refrigerant cycles
    • F28D2021/007—Condensers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2265/00—Safety or protection arrangements; Arrangements for preventing malfunction
    • F28F2265/06—Safety or protection arrangements; Arrangements for preventing malfunction by using means for draining heat exchange media from heat exchangers

Definitions

  • the present invention relates to an outdoor unit of a refrigeration apparatus.
  • Patent Document 1 Japanese Patent Application Laid-Open No. 2011-145029
  • a configuration in which a polypropylene cap or a bowl-shaped electric corrosion prevention body is provided at the lower end of a header collecting pipe has been reported.
  • An object of the present invention is to provide an outdoor unit of a refrigeration apparatus that is less susceptible to metal corrosion in an outdoor unit of a refrigeration apparatus that uses a heat exchanger made of aluminum or aluminum alloy.
  • the outdoor unit of the refrigeration apparatus includes a heat exchanger, a bottom frame, and a cap.
  • the heat exchanger is made of aluminum or aluminum alloy.
  • the heat exchanger has a plurality of flat tubes arranged so that the side surfaces face each other, a header collecting tube to which each flat tube is connected, and a plurality of fins joined to the flat tubes.
  • the fluid flowing inside the flat tube exchanges heat with the air flowing outside the flat tube.
  • the bottom frame mounts a heat exchanger.
  • the cap covers the lower end of the header collecting pipe from below.
  • the cap has a first drainage structure that discharges water that has entered through a gap between the header collecting pipe and the cap to the outside.
  • a cap is put on the lower end of the header collecting pipe, and by providing an opening for water discharge on the cap, the condensed water of the heat exchanger that has entered from the gap between the header collecting pipe and the cap can be discharged to the outside. Corrosion of heat exchanger and refrigerant leakage can be prevented.
  • Examples of the drainage structure include openings, notches, grooves, and the like. Condensed water, rainwater, etc. are contained in the dew condensation water of the heat exchanger.
  • rubber rubber
  • the header collecting pipe can be stably placed and has water resistance and vibration resistance. Natural rubber, chloroprene rubber, nitrile rubber, butyl rubber, ethylene propylene rubber, styrene -Butadiene rubber, silicone rubber, fluorine rubber, aflas, hydrogenated nitrile rubber, urethane rubber, etc. can be used.
  • the rubber is preferably a hard rubber having a hardness of about 50.
  • the cap in the outdoor unit of the refrigeration apparatus according to the second aspect of the present invention, in the outdoor unit of the refrigeration apparatus according to the first aspect, the cap includes a bottom surface portion and a side surface portion, and the first drainage structure is provided on the side surface portion.
  • the drainage structure since the drainage structure is provided on the side of the cap, it can be a large drainage structure, and the dew condensation water from the heat exchanger that has entered through the gap between the header collecting pipe and the cap can be discharged more effectively. Further, corrosion of the heat exchanger and leakage of the refrigerant can be prevented.
  • the first drainage structure is an opening.
  • the bottom surface of the opening is provided below the lower end of the header collecting pipe. Furthermore, the bottom surface of the opening is inclined downward from the inside toward the outside.
  • an opening is provided on the side of the cap, the bottom of the opening is lower than the lower end of the header collecting pipe, and the bottom of the opening is inclined. It can be led to the frame, and corrosion of the heat exchanger and refrigerant leakage can be further prevented.
  • a convex portion is provided on a surface of the bottom surface portion facing the bottom frame.
  • the header collecting pipe since the lower end of the header collecting pipe is raised by the cap, it is possible to prevent the header collecting pipe from being immersed in water even when condensed water accumulates in the bottom frame, and to further prevent corrosion of the heat exchanger and refrigerant leakage. . Further, it is possible to prevent the condensed water accumulated in the bottom frame from flowing into the cap and coming into contact with the header collecting pipe.
  • the second drainage structure is provided on the convex portion.
  • the dew condensation water that has entered the cap can be guided from the drainage structure at the bottom of the cap to the bottom frame, so that corrosion of the heat exchanger and refrigerant leakage can be prevented.
  • the drainage structure include openings, notches, grooves, and the like.
  • the outdoor unit of the refrigeration apparatus according to the sixth aspect of the present invention is the outdoor unit of the refrigeration apparatus according to any of the first to fifth aspects, and the cap has no gap for water to enter between the header collecting pipe. Designed to be Here, even if condensed water accumulates in the bottom frame, the lower end of the header collecting pipe does not come into contact with water, so that corrosion of the heat exchanger and refrigerant leakage can be further prevented.
  • the cap is put on the lower end of the header collecting pipe, and an opening for water discharge is provided in the cap, so that it enters from the gap between the header collecting pipe and the cap.
  • Condensed water from the heat exchanger can be discharged to the outside, preventing corrosion of the heat exchanger and refrigerant leakage.
  • the drainage structure is provided on the side of the cap, it can be a large drainage structure, and the heat exchanger enters from the gap between the header collecting pipe and the cap. The condensed water can be discharged to the outside more effectively, and corrosion of the heat exchanger and refrigerant leakage can be further prevented.
  • an opening is provided on the side surface of the cap, the bottom surface of the opening is lower than the lower end of the header collecting pipe, and the bottom surface of the opening is inclined, so Can be taken out of the cap more effectively and guided to the bottom frame, and corrosion of the heat exchanger and refrigerant leakage can be further prevented.
  • the header collecting pipe can be prevented from being immersed in water, Corrosion of the heat exchanger and refrigerant leakage can be further prevented. Further, it is possible to prevent the condensed water accumulated in the bottom frame from flowing into the cap and coming into contact with the header collecting pipe.
  • the dew condensation water that has entered the cap can be guided from the drainage structure at the bottom of the cap to the bottom frame. Can be prevented.
  • the lower end of the header collecting pipe does not come into contact with water, so that corrosion of the heat exchanger and refrigerant leakage can be further prevented.
  • FIG. 6 is a sectional view taken along line VI-VI in FIG. 4.
  • FIG. 7 is a sectional view taken along line VII-VII in a state where a header collecting pipe is placed on the cap of FIG.
  • It is a front view of the cap of the modification B.
  • It is a top view of the cap of the modification C.
  • It is a front view of the cap of the modification C.
  • FIG. 1 shows an outdoor unit of an air conditioner according to an embodiment of the present invention.
  • FIG. 1 is a perspective view showing an outdoor unit 20 of the air conditioner.
  • the outdoor unit 20 is installed outside an air-conditioning target space (indoor) that performs air conditioning, and the inside of the substantially rectangular parallelepiped box-shaped casing 50 is separated by a partition plate (not shown) extending vertically to a fan room and a machine room. It is divided into and.
  • the outdoor unit 20 is connected to an indoor unit (not shown) arranged in the air-conditioning target space via a refrigerant communication pipe (not shown).
  • the outdoor unit 20 mainly includes a substantially box-shaped casing 50, an outdoor fan (not shown), a heat exchanger, a compressor, a valve, a pipe, and the like, and refrigerant circuit components (not shown) constituting a refrigerant circuit. And an electrical component unit (not shown) for performing operation control.
  • the casing 50 is formed with air outlets located at the center and the left of the front surface 51, and the air sent out by the outdoor fan is blown forward from the air outlet.
  • the casing 50 includes a left side plate 54 and a bottom frame 8 in addition to the top plate 57, the right rear plate 56, and the right front plate 55.
  • Reference numeral 60 denotes a fan grill attached to the outside of the casing 50.
  • FIG. 2 is a schematic perspective view of the outdoor unit of the refrigeration apparatus according to the embodiment of the present invention with the top plate, left side plate, right front plate, and right rear plate removed.
  • the heat exchanger 25 is mounted, and the outdoor fan 35 is arrange
  • the outdoor heat exchanger 25 condenses or evaporates the refrigerant flowing inside through heat exchange with outdoor air. All of the outdoor heat exchangers 25 are made of aluminum or aluminum alloy.
  • the outdoor heat exchanger 25 has an appropriate space between the casing 50 and the resin member or the like between the casing 50 and the outdoor heat exchanger 25 so as not to directly contact the casing 50 (see FIG. 1). Installed in the casing 50. As shown in FIG. 2, the outdoor heat exchanger 25 extends to the left from the vicinity of the end of the partition plate 58 along the back surface of the casing 50, and changes its direction in the vicinity of the left rear corner of the casing 50. 54 (see FIG. 1) extends forward.
  • FIG. 3 is a schematic perspective view of the outdoor heat exchanger 25. As shown in FIG.
  • the outdoor heat exchanger 25 includes a flat tube 2, fins 4, and header collecting tubes 61 and 62.
  • the fins 4 are omitted.
  • a part of the reference numerals of the flat tube 2 is omitted.
  • the header collecting pipes 61 and 62 are connected to both ends of the flat tubes 2 arranged in a plurality of stages in the vertical direction.
  • the header collecting pipes 61 and 62 have a function of supporting the flat pipe 2, a function of guiding the refrigerant to the internal flow path (not shown) of the flat pipe 2, and a function of collecting the refrigerant that has come out of the internal flow path. is doing.
  • Lower end portions 6a and 6a of the header collecting pipes 61 and 62 are respectively covered from below with a cap 14 described later (see FIG. 7).
  • FIGS. 4 to 6 show a front view, a plan view, and a cross-sectional view of the cap 14.
  • FIG. 7 shows a cross section in a state where the header collecting pipe 6 is placed on the cap 14.
  • the cap 14 is a rubber member and has a bottom surface portion 15 and a side surface portion 16.
  • the bottom surface portion 15 has a cylindrical shape.
  • the column-shaped side surface portion 16 rises in the vertical direction from the circumferential edge portion of the circle of the bottom surface portion 15 when viewed from above, and thereby a hole 19 for inserting the lower end portion 6a of the header collecting pipe 6 is formed. .
  • the lower end 6 b of the header collecting pipe 6 is inserted so as to be in contact with the upper surface 15 b of the bottom surface portion 15, and the heat exchanger 25 is placed on the cap 14.
  • the cap 14 is formed of a hard rubber having a hardness of about 50 so that the heat exchanger 25 placed thereon does not come off even if it vibrates.
  • the cap 14 has a drain opening 17 in the side surface portion 16. Condensed water in the heat exchanger 25 that has entered the gap between the header collecting pipe 6 and the cap 14 is discharged to the outside through the drain opening 17. A bottom surface 17 a of the drainage opening 17 is provided below the upper surface 15 b of the bottom surface portion 15. For this reason, the dew condensation water of the heat exchanger 25 that has entered the gap with the cap 14 through the header collecting pipe 6 can be drained more effectively. Furthermore, the bottom surface 17a is inclined downward from the inside toward the outside, and drainage of condensed water is further promoted. A convex portion 15 a is provided on the surface of the bottom surface portion 15 that faces the bottom frame 8.
  • the outdoor unit 20 of the air conditioner 1 includes a heat exchanger 25, a bottom frame 8, and a cap 14.
  • the heat exchanger 25 is made of aluminum or aluminum alloy.
  • the heat exchanger 25 includes a plurality of flat tubes 2 arranged so that the side surfaces face each other, a header collecting tube 6 to which each flat tube 2 is connected, and a plurality of fins 4 joined to the flat tubes 2. .
  • the fluid flowing inside the flat tube 2 exchanges heat with the air flowing outside the flat tube 2.
  • the bottom frame 8 mounts the heat exchanger 25 thereon.
  • the cap 14 covers the lower end portion 6a of the header collecting pipe 6 from below.
  • the cap 14 has a drain opening 17 for discharging water that has entered from the gap between the header collecting pipe 6 and the cap 14 to the outside.
  • the cap 14 includes a bottom surface portion 15 and a side surface portion 16, and a drain opening 17 is provided in the side surface portion 16.
  • the drain opening is provided on the side of the cap, it can be made a large drain opening, and the dew condensation water of the heat exchanger that has entered through the gap between the header collecting pipe and the cap can be discharged more effectively to the outside.
  • the bottom surface 17a of the drain opening 17 is provided below the header collecting pipe lower end 6b. Furthermore, the bottom surface 17a is inclined downward from the inside toward the outside.
  • an opening is provided on the side of the cap, the bottom of the opening is lower than the lower end of the header collecting pipe, and the bottom of the opening is inclined. It can be led to the frame, and corrosion of the heat exchanger and refrigerant leakage can be further prevented.
  • a convex portion 15 a is provided on the surface of the bottom surface portion 15 that faces the bottom frame 8.
  • the lower end of the header collecting pipe is raised by the cap, it is possible to prevent the header collecting pipe from being immersed in water even when condensed water accumulates in the bottom frame, and to further prevent corrosion of the heat exchanger and refrigerant leakage. . Further, it is possible to prevent the condensed water accumulated in the bottom frame from flowing into the cap and coming into contact with the header collecting pipe.
  • the cap 14 is designed so that there is almost no gap for water to enter between the header collecting pipe 6 and the cap 14.
  • the lower end of the header collecting pipe does not come into contact with water, so that corrosion of the heat exchanger and refrigerant leakage can be further prevented.
  • Modifications Modifications of the present embodiment are shown below. A plurality of modified examples may be appropriately combined.
  • (4-1) Modification A Although the outdoor unit 20 shown by said embodiment is used for the air conditioning apparatus 1, it is not limited to it, You may be used for another refrigeration apparatus.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Geometry (AREA)
  • Other Air-Conditioning Systems (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

An outdoor unit (20) for an air conditioning device (1), the outdoor unit (20) being in accordance with an embodiment, is provided with a heat exchanger (25), a bottom frame (8), and a cap (14). The heat exchanger (25) consists of aluminum or an aluminum alloy. The heat exchanger (25) has flat tubes (2) which are arranged so that the side surfaces thereof face each other, a header collecting tube (6) to which the flat tubes (2) are connected, and fins (4) which are joined to the flat tubes (2). In the heat exchanger (25), fluid flowing through the inside of the flat tubes (2) exchanges heat with air flowing the outside of the flat tubes (2). The heat exchanger (25) is mounted on the bottom frame (8). The cap (14) covers the lower end (6a) of the header collecting tube (6) from below. The cap (14) has a water discharge opening (17) for discharging, to the outside, water entering from the gap between the header collecting tube (6) and the cap (14).

Description

冷凍装置の室外ユニットRefrigeration unit outdoor unit
　本発明は、冷凍装置の室外ユニットに関する。 The present invention relates to an outdoor unit of a refrigeration apparatus.
　冷凍装置の室外ユニットにおいては、例えば特許文献１（特開２０１１－１４５０２９）のように、ヘッダ集合管下端にポリプロピレン製のキャップまたは籠形状の電食防止体を設ける構成が報告されている。 In an outdoor unit of a refrigeration apparatus, for example, as disclosed in Patent Document 1 (Japanese Patent Application Laid-Open No. 2011-145029), a configuration in which a polypropylene cap or a bowl-shaped electric corrosion prevention body is provided at the lower end of a header collecting pipe has been reported.
　しかしながら、この構成では、ヘッダ集合管をつたってきた水がキャップに入り込んだり、底フレーム（ドレンパン）に水が溜まってきた場合、籠の網目状部分から水が浸入し、ヘッダ集合管に水が接触し、ヘッダ集合管の電食が発生する恐れがあった。
　本発明の課題は、アルミニウム製又はアルミニウム合金製の熱交換器を用いる冷凍装置の室外ユニットにおいて、金属腐食の影響を受けにくい冷凍装置の室外ユニットを提供することにある。 However, in this configuration, when the water that has reached the header collecting pipe enters the cap or the water accumulates in the bottom frame (drain pan), the water infiltrates from the mesh portion of the ridge, and the water collects in the header collecting pipe. There was a risk of electric corrosion of the header collecting pipe coming into contact.
An object of the present invention is to provide an outdoor unit of a refrigeration apparatus that is less susceptible to metal corrosion in an outdoor unit of a refrigeration apparatus that uses a heat exchanger made of aluminum or aluminum alloy.
　本発明の第１観点に係る冷凍装置の室外ユニットは、熱交換器と底フレームとキャップとを備える。熱交換器は、アルミニウム製又はアルミニウム合金製である。熱交換器は、側面が対向するように配列された複数の扁平管と、各扁平管が接続されたヘッダ集合管と、扁平管に接合された複数のフィンとを有する。熱交換器では、扁平管の内部を流れる流体が扁平管の外部を流れる空気と熱交換する。底フレームは、熱交換器を載置する。キャップは、ヘッダ集合管の下端部を下から覆う。キャップは、ヘッダ集合管とキャップとの隙間から入った水を外部に排出する第１排水構造を有している。
　ここでは、ヘッダ集合管の下端にキャップを被せると共に、キャップに水排出用の開口部を設けることにより、ヘッダ集合管とキャップとの隙間から入った熱交換器の結露水を外部に排出でき、熱交換器の腐食、冷媒漏れを防止できる。 The outdoor unit of the refrigeration apparatus according to the first aspect of the present invention includes a heat exchanger, a bottom frame, and a cap. The heat exchanger is made of aluminum or aluminum alloy. The heat exchanger has a plurality of flat tubes arranged so that the side surfaces face each other, a header collecting tube to which each flat tube is connected, and a plurality of fins joined to the flat tubes. In the heat exchanger, the fluid flowing inside the flat tube exchanges heat with the air flowing outside the flat tube. The bottom frame mounts a heat exchanger. The cap covers the lower end of the header collecting pipe from below. The cap has a first drainage structure that discharges water that has entered through a gap between the header collecting pipe and the cap to the outside.
Here, a cap is put on the lower end of the header collecting pipe, and by providing an opening for water discharge on the cap, the condensed water of the heat exchanger that has entered from the gap between the header collecting pipe and the cap can be discharged to the outside. Corrosion of heat exchanger and refrigerant leakage can be prevented.
　上記排水構造としては、開口、切り欠き、溝等が挙げられる。
　熱交換器の結露水には、凝集水、雨水などが含まれる。
　キャップの素材としては、ヘッダ集合管を安定に載置でき、耐水性、防振性を有する観点から、ゴム（ラバー）が好ましく、天然ゴム、クロロプレンゴム、ニトリルゴム、ブチルゴム、エチレンプロピレンゴム、スチレン・ブタジエンゴム、シリコーンゴム、フッ素ゴム、アフラス、水素化ニトリルゴム、ウレタンゴム等が使用できる。ゴムは、硬度５０程度の硬めのゴムが好ましい。 Examples of the drainage structure include openings, notches, grooves, and the like.
Condensed water, rainwater, etc. are contained in the dew condensation water of the heat exchanger.
As the material of the cap, rubber (rubber) is preferable from the viewpoint that the header collecting pipe can be stably placed and has water resistance and vibration resistance. Natural rubber, chloroprene rubber, nitrile rubber, butyl rubber, ethylene propylene rubber, styrene -Butadiene rubber, silicone rubber, fluorine rubber, aflas, hydrogenated nitrile rubber, urethane rubber, etc. can be used. The rubber is preferably a hard rubber having a hardness of about 50.
　本発明の第２観点に係る冷凍装置の室外ユニットでは、第１観点に係る冷凍装置の室外ユニットにおいて、キャップは底面部と側面部から構成され、第１排水構造が側面部に設けられている。
　ここでは、排水構造がキャップ側面に設けられているため、大きな排水構造とすることができ、ヘッダ集合管とキャップとの隙間から入った熱交換器の結露水をより効果的に外部に排出でき、熱交換器の腐食、冷媒漏れをより防止できる。 In the outdoor unit of the refrigeration apparatus according to the second aspect of the present invention, in the outdoor unit of the refrigeration apparatus according to the first aspect, the cap includes a bottom surface portion and a side surface portion, and the first drainage structure is provided on the side surface portion. .
Here, since the drainage structure is provided on the side of the cap, it can be a large drainage structure, and the dew condensation water from the heat exchanger that has entered through the gap between the header collecting pipe and the cap can be discharged more effectively. Further, corrosion of the heat exchanger and leakage of the refrigerant can be prevented.
　本発明の第３観点に係る冷凍装置の室外ユニットでは、第１観点または第２観点に係る冷凍装置の室外ユニットにおいて、第１排水構造は開口である。その開口の底面は、ヘッダ集合管下端より下に設けられている。さらに、開口の底面は、内側から外側に向かって下方に傾斜している。
　ここでは、キャップの側面に開口を設け、開口の底面がヘッダ集合管下端より低く、開口の底面に傾斜があるため、キャップ内に入った結露水をより効果的にキャップの外に出し、底フレームへ導くことができ、熱交換器の腐食、冷媒漏れをより防止できる。 In the outdoor unit of the refrigeration apparatus according to the third aspect of the present invention, in the outdoor unit of the refrigeration apparatus according to the first aspect or the second aspect, the first drainage structure is an opening. The bottom surface of the opening is provided below the lower end of the header collecting pipe. Furthermore, the bottom surface of the opening is inclined downward from the inside toward the outside.
Here, an opening is provided on the side of the cap, the bottom of the opening is lower than the lower end of the header collecting pipe, and the bottom of the opening is inclined. It can be led to the frame, and corrosion of the heat exchanger and refrigerant leakage can be further prevented.
　本発明の第４観点に係る冷凍装置の室外ユニットでは、第２観点または第３観点に係る冷凍装置の室外ユニットにおいて、底面部の底フレームと対向する面に、凸部が設けられている。
　ここでは、キャップによりヘッダ集合管下端がかさ上げされているため、底フレームに結露水が溜まってもヘッダ集合管が水に浸ることを防止でき、熱交換器の腐食、冷媒漏れをより防止できる。また、底フレームに溜まった結露水が、キャップ内に流入してヘッダ集合管に接触することを防止できる。 In the outdoor unit of the refrigeration apparatus according to the fourth aspect of the present invention, in the outdoor unit of the refrigeration apparatus according to the second aspect or the third aspect, a convex portion is provided on a surface of the bottom surface portion facing the bottom frame.
Here, since the lower end of the header collecting pipe is raised by the cap, it is possible to prevent the header collecting pipe from being immersed in water even when condensed water accumulates in the bottom frame, and to further prevent corrosion of the heat exchanger and refrigerant leakage. . Further, it is possible to prevent the condensed water accumulated in the bottom frame from flowing into the cap and coming into contact with the header collecting pipe.
　本発明の第５観点に係る冷凍装置の室外ユニットでは、第４観点の冷凍装置の室外ユニットにおいて、凸部に第２排水構造が設けられている。
　ここでは、キャップ内に入った結露水を、キャップの下部の排水構造から、底フレームへと導くことができるため、熱交換器の腐食、冷媒漏れを防止できる。
　上記排水構造としては、開口、切り欠き、溝等が挙げられる。 In the outdoor unit of the refrigeration apparatus according to the fifth aspect of the present invention, in the outdoor unit of the refrigeration apparatus according to the fourth aspect, the second drainage structure is provided on the convex portion.
Here, the dew condensation water that has entered the cap can be guided from the drainage structure at the bottom of the cap to the bottom frame, so that corrosion of the heat exchanger and refrigerant leakage can be prevented.
Examples of the drainage structure include openings, notches, grooves, and the like.
　本発明の第６観点に係る冷凍装置の室外ユニットは、第１観点から第５観点の何れかに係る冷凍装置の室外ユニットにおいて、キャップは、ヘッダ集合管との間に水の入る隙間がないように設計されている。
　ここでは、底フレームに結露水が溜まってもヘッダ集合管の下端が水と接触しないため、熱交換器の腐食、冷媒漏れをより防止できる。 The outdoor unit of the refrigeration apparatus according to the sixth aspect of the present invention is the outdoor unit of the refrigeration apparatus according to any of the first to fifth aspects, and the cap has no gap for water to enter between the header collecting pipe. Designed to be
Here, even if condensed water accumulates in the bottom frame, the lower end of the header collecting pipe does not come into contact with water, so that corrosion of the heat exchanger and refrigerant leakage can be further prevented.
　本発明の第１観点に係る冷凍装置の室外ユニットでは、ヘッダ集合管の下端にキャップを被せると共に、キャップに水排出用の開口部を設けることにより、ヘッダ集合管とキャップとの隙間から入った熱交換器の結露水を外部に排出でき、熱交換器の腐食、冷媒漏れを防止できる。
　本発明の第２観点に係る冷凍装置の室外ユニットでは、排水構造がキャップ側面に設けられているため、大きな排水構造とすることができ、ヘッダ集合管とキャップとの隙間から入った熱交換器の結露水をより効果的に外部に排出でき、熱交換器の腐食、冷媒漏れをより防止できる。
　本発明の第３観点に係る冷凍装置の室外ユニットでは、キャップの側面に開口を設け、開口の底面がヘッダ集合管下端より低く、開口の底面に傾斜があるため、キャップ内に入った結露水をより効果的にキャップの外に出し、底フレームへ導くことができ、熱交換器の腐食、冷媒漏れをより防止できる。 In the outdoor unit of the refrigeration apparatus according to the first aspect of the present invention, the cap is put on the lower end of the header collecting pipe, and an opening for water discharge is provided in the cap, so that it enters from the gap between the header collecting pipe and the cap. Condensed water from the heat exchanger can be discharged to the outside, preventing corrosion of the heat exchanger and refrigerant leakage.
In the outdoor unit of the refrigeration apparatus according to the second aspect of the present invention, since the drainage structure is provided on the side of the cap, it can be a large drainage structure, and the heat exchanger enters from the gap between the header collecting pipe and the cap. The condensed water can be discharged to the outside more effectively, and corrosion of the heat exchanger and refrigerant leakage can be further prevented.
In the outdoor unit of the refrigeration apparatus according to the third aspect of the present invention, an opening is provided on the side surface of the cap, the bottom surface of the opening is lower than the lower end of the header collecting pipe, and the bottom surface of the opening is inclined, so Can be taken out of the cap more effectively and guided to the bottom frame, and corrosion of the heat exchanger and refrigerant leakage can be further prevented.
　本発明の第４観点に係る冷凍装置の室外ユニットでは、キャップによりヘッダ集合管下端がかさ上げされているため、底フレームに結露水が溜まってもヘッダ集合管が水に浸ることを防止でき、熱交換器の腐食、冷媒漏れをより防止できる。また、底フレームに溜まった結露水が、キャップ内に流入してヘッダ集合管に接触することを防止できる。
　本発明の第５観点に係る冷凍装置の室外ユニットでは、キャップ内に入った結露水を、キャップの下部の排水構造から、底フレームへと導くことができるため、熱交換器の腐食、冷媒漏れを防止できる。
　本発明の第６観点に係る冷凍装置の室外ユニットでは、底フレームに結露水が溜まってもヘッダ集合管の下端が水と接触しないため、熱交換器の腐食、冷媒漏れをより防止できる。 In the outdoor unit of the refrigeration apparatus according to the fourth aspect of the present invention, since the lower end of the header collecting pipe is raised by the cap, even if condensed water accumulates in the bottom frame, the header collecting pipe can be prevented from being immersed in water, Corrosion of the heat exchanger and refrigerant leakage can be further prevented. Further, it is possible to prevent the condensed water accumulated in the bottom frame from flowing into the cap and coming into contact with the header collecting pipe.
In the outdoor unit of the refrigeration apparatus according to the fifth aspect of the present invention, the dew condensation water that has entered the cap can be guided from the drainage structure at the bottom of the cap to the bottom frame. Can be prevented.
In the outdoor unit of the refrigeration apparatus according to the sixth aspect of the present invention, even if condensed water accumulates in the bottom frame, the lower end of the header collecting pipe does not come into contact with water, so that corrosion of the heat exchanger and refrigerant leakage can be further prevented.
本発明の一実施形態に係る冷凍装置の室外ユニットの概略斜視図である。It is a schematic perspective view of the outdoor unit of the freezing apparatus which concerns on one Embodiment of this invention. 本発明の一実施形態に係る冷凍装置の室外ユニットの、天板、左側板、右前板及び右後板を取り除いた状態の概略斜視図である。It is a schematic perspective view of the outdoor unit of the refrigeration apparatus according to one embodiment of the present invention with the top plate, left side plate, right front plate and right rear plate removed. 室外熱交換器の概略斜視図である。It is a schematic perspective view of an outdoor heat exchanger. 本発明の一実施形態に係るキャップの正面図である。It is a front view of the cap concerning one embodiment of the present invention. 本発明の一実施形態に係るキャップの平面図である。It is a top view of the cap concerning one embodiment of the present invention. 図４のVI－VI断面図である。FIG. 6 is a sectional view taken along line VI-VI in FIG. 4. 図５のキャップにヘッダ集合管を載置した状態のVII－VII断面図である。FIG. 7 is a sectional view taken along line VII-VII in a state where a header collecting pipe is placed on the cap of FIG. 変形例Ｂのキャップの正面図である。It is a front view of the cap of the modification B. 変形例Ｃのキャップの平面図である。It is a top view of the cap of the modification C. 変形例Ｃのキャップの正面図である。It is a front view of the cap of the modification C.
　以下、図面を参照しながら、本発明の実施形態について説明する。
　本実施形態の冷凍装置の室外ユニットは、空気調和装置の室外ユニットとして利用される。
　（１）室外ユニットの概略構成
　本発明の一実施形態に係る空気調和装置の室外ユニットを、図１に示す。図１は、空気調和装置の室外ユニット２０を示す斜視図である。室外ユニット２０は、空気調和を行う空調対象空間（室内）の外部に設置されており、略直方体箱状のケーシング５０の内部が、鉛直に延びる仕切り板（図示せず）によって送風機室と機械室とに分割されている。この室外ユニット２０は、空調対象空間に配置される室内ユニット（図示せず）に冷媒連絡配管（図示せず）を介して接続されている。 Hereinafter, embodiments of the present invention will be described with reference to the drawings.
The outdoor unit of the refrigeration apparatus of this embodiment is used as an outdoor unit of an air conditioner.
(1) Schematic configuration of outdoor unit FIG. 1 shows an outdoor unit of an air conditioner according to an embodiment of the present invention. FIG. 1 is a perspective view showing an outdoor unit 20 of the air conditioner. The outdoor unit 20 is installed outside an air-conditioning target space (indoor) that performs air conditioning, and the inside of the substantially rectangular parallelepiped box-shaped casing 50 is separated by a partition plate (not shown) extending vertically to a fan room and a machine room. It is divided into and. The outdoor unit 20 is connected to an indoor unit (not shown) arranged in the air-conditioning target space via a refrigerant communication pipe (not shown).
　室外ユニット２０は、主に、略箱状のケーシング５０と、室外ファン（図示せず）と、熱交換器、圧縮機、弁、配管などを含み冷媒回路を構成する冷媒回路構成部品（図示せず）と、運転制御を行う電装品ユニット（図示せず）とを備えている。
　ケーシング５０には、前面５１の中央部および左部に位置する吹出口が形成されており、室外ファンにより送り出された空気が、吹出口から前方に吹き出される。
　ケーシング５０は、天板５７、右後板５６、右前板５５に加えて、左側板５４、底フレーム８を有している。６０は、ケーシング５０の外側に取り付けられたファングリルである。
　図２は、本発明の一実施形態に係る冷凍装置の室外ユニットの、天板、左側板、右前板及び右後板を取り除いた状態の概略斜視図である。底フレーム８上に、熱交換器２５が載置され、その前に室外ファン３５が配置されている。そして、仕切り板５８で区切られ、向かって左側が送風機室、右側が機械室である。 The outdoor unit 20 mainly includes a substantially box-shaped casing 50, an outdoor fan (not shown), a heat exchanger, a compressor, a valve, a pipe, and the like, and refrigerant circuit components (not shown) constituting a refrigerant circuit. And an electrical component unit (not shown) for performing operation control.
The casing 50 is formed with air outlets located at the center and the left of the front surface 51, and the air sent out by the outdoor fan is blown forward from the air outlet.
The casing 50 includes a left side plate 54 and a bottom frame 8 in addition to the top plate 57, the right rear plate 56, and the right front plate 55. Reference numeral 60 denotes a fan grill attached to the outside of the casing 50.
FIG. 2 is a schematic perspective view of the outdoor unit of the refrigeration apparatus according to the embodiment of the present invention with the top plate, left side plate, right front plate, and right rear plate removed. On the bottom frame 8, the heat exchanger 25 is mounted, and the outdoor fan 35 is arrange | positioned in front of it. And it is divided | segmented by the partition plate 58, the left side is a fan room, and the right side is a machine room.
　室外熱交換器２５は、室外空気との熱交換によって内部を流れる冷媒を凝縮又は蒸発させる。室外熱交換器２５は、全てがアルミニウム製又はアルミニウム合金製である。室外熱交換器２５は、ケーシング５０（図１参照）と直接接触することがないよう、ケーシング５０と適切なスペースを空けて、又は、樹脂部材等をケーシング５０と室外熱交換器２５との間に設置して、ケーシング５０内に配置される。
　室外熱交換器２５は、図２のように、ケーシング５０の背面に沿って、仕切り板５８の端部付近から左方に延び、ケーシング５０の左後方角部付近でその方向を変え、左側板５４（図１参照）に沿って前方に延びる。
　図３は、室外熱交換器２５の概略斜視図である。図３に示すように、室外熱交換器２５は、扁平管２、フィン４およびヘッダ集合管６１，６２を有する。なお、図３では、フィン４は省略して図示している。また、扁平管２の参照符号は一部を省略している。ヘッダ集合管６１，６２は、上下方向に複数段配列された扁平管２の両端に連結される。ヘッダ集合管６１，６２は、扁平管２を支持する機能と、冷媒を扁平管２の内部流路（不図示）に導く機能と、内部流路から出てきた冷媒を集合させる機能とを有している。ヘッダ集合管６１，６２の下端部６ａ，６ａは、それぞれ、後述のキャップ１４で下から覆われている（図７参照）。 The outdoor heat exchanger 25 condenses or evaporates the refrigerant flowing inside through heat exchange with outdoor air. All of the outdoor heat exchangers 25 are made of aluminum or aluminum alloy. The outdoor heat exchanger 25 has an appropriate space between the casing 50 and the resin member or the like between the casing 50 and the outdoor heat exchanger 25 so as not to directly contact the casing 50 (see FIG. 1). Installed in the casing 50.
As shown in FIG. 2, the outdoor heat exchanger 25 extends to the left from the vicinity of the end of the partition plate 58 along the back surface of the casing 50, and changes its direction in the vicinity of the left rear corner of the casing 50. 54 (see FIG. 1) extends forward.
FIG. 3 is a schematic perspective view of the outdoor heat exchanger 25. As shown in FIG. 3, the outdoor heat exchanger 25 includes a flat tube 2, fins 4, and header collecting tubes 61 and 62. In FIG. 3, the fins 4 are omitted. Further, a part of the reference numerals of the flat tube 2 is omitted. The header collecting pipes 61 and 62 are connected to both ends of the flat tubes 2 arranged in a plurality of stages in the vertical direction. The header collecting pipes 61 and 62 have a function of supporting the flat pipe 2, a function of guiding the refrigerant to the internal flow path (not shown) of the flat pipe 2, and a function of collecting the refrigerant that has come out of the internal flow path. is doing. Lower end portions 6a and 6a of the header collecting pipes 61 and 62 are respectively covered from below with a cap 14 described later (see FIG. 7).
　（２）キャップ
　図４～６に、キャップ１４の正面図、平面図ならびに断面図を示す。また、図７に、キャップ１４にヘッダ集合管６を載置した状態の断面を示す。
　キャップ１４はゴム部材であり、底面部１５と側面部１６とを有している。底面部１５は、円柱形である。円柱状の側面部１６は、底面部１５の上面視の円の円周の縁部分から鉛直方向に立ち上がり、これにより、ヘッダ集合管６の下端部６ａを差し込むための穴１９が形成されている。そして、ヘッダ集合管６の下端６ｂを、底面部１５の上面１５ｂに接するように挿入して、熱交換器２５をキャップ１４上に載置する。キャップ１４は、上に載置した熱交換器２５が振動しても外れないように、硬度５０程の硬めのゴムで形成されている。 (2) Cap FIGS. 4 to 6 show a front view, a plan view, and a cross-sectional view of the cap 14. FIG. 7 shows a cross section in a state where the header collecting pipe 6 is placed on the cap 14.
The cap 14 is a rubber member and has a bottom surface portion 15 and a side surface portion 16. The bottom surface portion 15 has a cylindrical shape. The column-shaped side surface portion 16 rises in the vertical direction from the circumferential edge portion of the circle of the bottom surface portion 15 when viewed from above, and thereby a hole 19 for inserting the lower end portion 6a of the header collecting pipe 6 is formed. . Then, the lower end 6 b of the header collecting pipe 6 is inserted so as to be in contact with the upper surface 15 b of the bottom surface portion 15, and the heat exchanger 25 is placed on the cap 14. The cap 14 is formed of a hard rubber having a hardness of about 50 so that the heat exchanger 25 placed thereon does not come off even if it vibrates.
　キャップ１４は、側面部１６に排水開口１７を有している。上記ヘッダ集合管６をつたってキャップ１４との隙間に入った熱交換器２５の結露水は、排水開口１７から外部に排出される。排水開口１７の底面１７ａは、底面部１５の上面１５ｂより下に設けられている。このため、ヘッダ集合管６をつたってキャップ１４との隙間に入った熱交換器２５の結露水をより効果的に排水できる。さらに、底面１７ａは、内側から外側に向かって下方に傾斜しており、結露水の排水がさらに促進される。
　底面部１５の底フレーム８と対向する面には、凸部１５ａが設けられている。このため、底フレーム８に水が溜まっても、水がヘッダ集合管６の下端部６ａが水に浸かる可能性が小さい。
　（３）室外ユニットの特徴
　（３－１）
　本実施形態に係る空気調和装置１の室外ユニット２０は、熱交換器２５と底フレーム８とキャップ１４とを備える。熱交換器２５は、アルミニウム製又はアルミニウム合金製である。熱交換器２５は、側面が対向するように配列された複数の扁平管２と、各扁平管２が接続されたヘッダ集合管６と、扁平管２に接合された複数のフィン４とを有する。熱交換器２５では、扁平管２の内部を流れる流体が扁平管２の外部を流れる空気と熱交換する。底フレーム８は、熱交換器２５を載置する。キャップ１４は、ヘッダ集合管６の下端部６ａを下から覆う。キャップ１４は、ヘッダ集合管６とキャップ１４との隙間から入った水を外部に排出する排水開口１７を有している。 The cap 14 has a drain opening 17 in the side surface portion 16. Condensed water in the heat exchanger 25 that has entered the gap between the header collecting pipe 6 and the cap 14 is discharged to the outside through the drain opening 17. A bottom surface 17 a of the drainage opening 17 is provided below the upper surface 15 b of the bottom surface portion 15. For this reason, the dew condensation water of the heat exchanger 25 that has entered the gap with the cap 14 through the header collecting pipe 6 can be drained more effectively. Furthermore, the bottom surface 17a is inclined downward from the inside toward the outside, and drainage of condensed water is further promoted.
A convex portion 15 a is provided on the surface of the bottom surface portion 15 that faces the bottom frame 8. For this reason, even if water accumulates in the bottom frame 8, there is little possibility that the lower end portion 6a of the header collecting pipe 6 is immersed in water.
(3) Features of outdoor unit (3-1)
The outdoor unit 20 of the air conditioner 1 according to this embodiment includes a heat exchanger 25, a bottom frame 8, and a cap 14. The heat exchanger 25 is made of aluminum or aluminum alloy. The heat exchanger 25 includes a plurality of flat tubes 2 arranged so that the side surfaces face each other, a header collecting tube 6 to which each flat tube 2 is connected, and a plurality of fins 4 joined to the flat tubes 2. . In the heat exchanger 25, the fluid flowing inside the flat tube 2 exchanges heat with the air flowing outside the flat tube 2. The bottom frame 8 mounts the heat exchanger 25 thereon. The cap 14 covers the lower end portion 6a of the header collecting pipe 6 from below. The cap 14 has a drain opening 17 for discharging water that has entered from the gap between the header collecting pipe 6 and the cap 14 to the outside.
　ここでは、ヘッダ集合管の下端にキャップを被せると共に、キャップに水排出用の開口部を設けることにより、ヘッダ集合管とキャップとの隙間から入った熱交換器の結露水を外部に排出でき、熱交換器の腐食、冷媒漏れを防止できる。
　（３－２）
　本実施形態に係る空気調和装置１の室外ユニット２０では、キャップ１４は底面部１５と側面部１６から構成され、排水開口１７が側面部１６に設けられている。
　ここでは、排水開口がキャップ側面に設けられているため、大きな排水開口とすることができ、ヘッダ集合管とキャップとの隙間から入った熱交換器の結露水をより効果的に外部に排出でき、熱交換器の腐食、冷媒漏れをより防止できる。
　（３－３）
　本実施形態に係る空気調和装置１の室外ユニット２０では、排水開口１７の底面１７ａは、ヘッダ集合管下端６ｂより下に設けられている。さらに、底面１７ａは、内側から外側に向かって下方に傾斜している。 Here, a cap is put on the lower end of the header collecting pipe, and by providing an opening for water discharge on the cap, the condensed water of the heat exchanger that has entered from the gap between the header collecting pipe and the cap can be discharged to the outside. Corrosion of heat exchanger and refrigerant leakage can be prevented.
(3-2)
In the outdoor unit 20 of the air conditioner 1 according to the present embodiment, the cap 14 includes a bottom surface portion 15 and a side surface portion 16, and a drain opening 17 is provided in the side surface portion 16.
Here, since the drain opening is provided on the side of the cap, it can be made a large drain opening, and the dew condensation water of the heat exchanger that has entered through the gap between the header collecting pipe and the cap can be discharged more effectively to the outside. Further, corrosion of the heat exchanger and leakage of the refrigerant can be prevented.
(3-3)
In the outdoor unit 20 of the air conditioner 1 according to the present embodiment, the bottom surface 17a of the drain opening 17 is provided below the header collecting pipe lower end 6b. Furthermore, the bottom surface 17a is inclined downward from the inside toward the outside.
　ここでは、キャップの側面に開口を設け、開口の底面がヘッダ集合管下端より低く、開口の底面に傾斜があるため、キャップ内に入った結露水をより効果的にキャップの外に出し、底フレームへ導くことができ、熱交換器の腐食、冷媒漏れをより防止できる。
　（３－４）
　本実施形態に係る空気調和装置１の室外ユニット２０では、底面部１５の底フレーム８と対向する面に、凸部１５ａが設けられている。
　ここでは、キャップによりヘッダ集合管下端がかさ上げされているため、底フレームに結露水が溜まってもヘッダ集合管が水に浸ることを防止でき、熱交換器の腐食、冷媒漏れをより防止できる。また、底フレームに溜まった結露水が、キャップ内に流入してヘッダ集合管に接触することを防止できる。 Here, an opening is provided on the side of the cap, the bottom of the opening is lower than the lower end of the header collecting pipe, and the bottom of the opening is inclined. It can be led to the frame, and corrosion of the heat exchanger and refrigerant leakage can be further prevented.
(3-4)
In the outdoor unit 20 of the air conditioner 1 according to the present embodiment, a convex portion 15 a is provided on the surface of the bottom surface portion 15 that faces the bottom frame 8.
Here, since the lower end of the header collecting pipe is raised by the cap, it is possible to prevent the header collecting pipe from being immersed in water even when condensed water accumulates in the bottom frame, and to further prevent corrosion of the heat exchanger and refrigerant leakage. . Further, it is possible to prevent the condensed water accumulated in the bottom frame from flowing into the cap and coming into contact with the header collecting pipe.
　（３－５）
　本実施形態に係る空気調和装置１の室外ユニット２０は、キャップ１４は、ヘッダ集合管６との間に水の入る隙間がほとんどないように設計されている。
　ここでは、底フレームに結露水が溜まってもヘッダ集合管の下端が水と接触しないため、熱交換器の腐食、冷媒漏れをより防止できる。
　（４）変形例
　以下に本実施形態の変形例を示す。なお、複数の変形例を適宜組み合わせてもよい。
　（４－１）変形例Ａ
　上記の実施形態に示された室外ユニット２０は、空気調和装置１に使用されるものであるが、それに限定されるものではなく、その他の冷凍装置に使用されるものであってもよい。 (3-5)
In the outdoor unit 20 of the air conditioner 1 according to this embodiment, the cap 14 is designed so that there is almost no gap for water to enter between the header collecting pipe 6 and the cap 14.
Here, even if condensed water accumulates in the bottom frame, the lower end of the header collecting pipe does not come into contact with water, so that corrosion of the heat exchanger and refrigerant leakage can be further prevented.
(4) Modifications Modifications of the present embodiment are shown below. A plurality of modified examples may be appropriately combined.
(4-1) Modification A
Although the outdoor unit 20 shown by said embodiment is used for the air conditioning apparatus 1, it is not limited to it, You may be used for another refrigeration apparatus.
　（４－２）変形例Ｂ
　上記の実施形態に示された室外ユニット２０では、凸部１５ａに排水開口１８（図８参照）が設けられていてもよい。
　（４－３）変形例Ｃ
　上記の実施形態に示された室外ユニット２０のキャップ１４１では、底面部１５に排水開口１８（図９、図１０参照）が設けられていてもよい。図１０において、７１は粘着剤、７２は離形紙である。これらにより、下部から排水されやすい構造となっている。 (4-2) Modification B
In the outdoor unit 20 shown in the above embodiment, the drainage opening 18 (see FIG. 8) may be provided in the convex portion 15a.
(4-3) Modification C
In the cap 141 of the outdoor unit 20 shown in the above embodiment, a drain opening 18 (see FIGS. 9 and 10) may be provided in the bottom surface portion 15. In FIG. 10, 71 is an adhesive and 72 is a release paper. As a result, it is easy to drain from the bottom.
　以上のように、本発明によれば金属腐食の影響を受けることが抑制されるので、冷凍装置の室外ユニットに有用である。 As described above, according to the present invention, since the influence of metal corrosion is suppressed, it is useful for an outdoor unit of a refrigeration apparatus.
２　　　扁平管
４　　　フィン
６，６１，６２　ヘッダ集合管
８　　　底フレーム
１４　　キャップ
１７　　排水開口
２０　　室外ユニット
２５　　室外熱交換器（熱交換器）
３５　　室外ファン
５０　　ケーシング
５１　　前板
５４　　左側板
５５　　右前板
５６　　右後板
５７　　天板
５８　　仕切り板
６０　　ファングリル 2 Flat tube 4 Fin 6, 61, 62 Header collecting tube 8 Bottom frame 14 Cap 17 Drainage opening 20 Outdoor unit 25 Outdoor heat exchanger (heat exchanger)
35 Outdoor fan 50 Casing 51 Front plate 54 Left plate 55 Right front plate 56 Right rear plate 57 Top plate 58 Partition plate 60 Fan grill
特開２０１１－１４５０２９JP2011-145029

Claims (6)

  1. 　アルミニウム製又はアルミニウム合金製の熱交換器（２５）であって、側面が対向するように配列された複数の扁平管（２）と、前記各扁平管が接続されたヘッダ集合管（６）と、前記扁平管に接合された複数のフィン（４）とを有し、前記扁平管の内部を流れる流体が前記扁平管の外部を流れる空気と熱交換する熱交換器（２５）と、
    　前記熱交換器を載置する底フレーム（８）と、
    　前記ヘッダ集合管の下端部（６ａ）を下から覆うキャップ（１４）と、
    を備え、
    　前記キャップが、前記ヘッダ集合管と前記キャップとの隙間から入った水を外部に排出する第１排水構造（１７）を有している、
    冷凍装置の室外ユニット。     A heat exchanger (25) made of aluminum or aluminum alloy, and a plurality of flat tubes (2) arranged so that side surfaces thereof are opposed to each other, and a header collecting tube (6) to which the flat tubes are connected A heat exchanger (25) having a plurality of fins (4) joined to the flat tube, wherein the fluid flowing inside the flat tube exchanges heat with air flowing outside the flat tube,
    A bottom frame (8) for mounting the heat exchanger;
    A cap (14) covering the lower end (6a) of the header collecting pipe from below;
    With
    The cap has a first drainage structure (17) for discharging water that has entered from a gap between the header collecting pipe and the cap to the outside.
    Outdoor unit of refrigeration equipment.
  2. 　前記キャップは底面部（１５）と側面部（１６）から構成され、前記第１排水構造は前記側面部に設けられている、
    請求項１記載の室外ユニット。     The cap is composed of a bottom surface portion (15) and a side surface portion (16), and the first drainage structure is provided on the side surface portion,
    The outdoor unit according to claim 1.
  3. 　前記第１排水構造は開口であり、その開口の底面（１７ａ）は、前記ヘッダ集合管下端（６ｂ）より下に設けられており、かつ、前記底面は、内側から外側に向かって下方に傾斜している、
    請求項１又は２に記載の室外ユニット。     The first drainage structure is an opening, and the bottom surface (17a) of the opening is provided below the lower end (6b) of the header collecting pipe, and the bottom surface is inclined downward from the inside to the outside. is doing,
    The outdoor unit according to claim 1 or 2.
  4. 　前記底面部の前記底フレームと対向する面に、凸部（１５ａ）が設けられている、
    請求項２又は３に記載の室外ユニット。     A convex portion (15a) is provided on a surface of the bottom surface portion facing the bottom frame.
    The outdoor unit according to claim 2 or 3.
  5. 　前記凸部に第２排水構造（１８）が設けられている、
    請求項４記載の室外ユニット。     A second drainage structure (18) is provided on the convex portion;
    The outdoor unit according to claim 4.
  6. 　前記キャップは、前記ヘッダ集合管との間に水の入る隙間がないように設計されている、
    請求項１～５の何れか１項に記載の室外ユニット。     The cap is designed so that there is no gap for water to enter between the header collecting pipe,
    The outdoor unit according to any one of claims 1 to 5.
PCT/JP2013/051394 2012-02-06 2013-01-24 Outdoor unit for refrigeration device WO2013118583A1 (en)

Priority Applications (5)

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AU2013218945A AU2013218945B2 (en) 2012-02-06 2013-01-24 Outdoor unit of refrigeration apparatus
KR1020147024748A KR101656163B1 (en) 2012-02-06 2013-01-24 Outdoor unit for refrigeration device
CN201380007067.1A CN104081129B (en) 2012-02-06 2013-01-24 The outdoor unit of refrigerating plant
US14/376,109 US20140374062A1 (en) 2012-02-06 2013-01-24 Outdoor unit of refrigeration apparatus
EP13746777.5A EP2813770B1 (en) 2012-02-06 2013-01-24 Outdoor unit for refrigeration device

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JP2012022708A JP6024111B2 (en) 2012-02-06 2012-02-06 Refrigeration unit outdoor unit

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EP2813770B1 (en) 2016-12-07
US20140374062A1 (en) 2014-12-25
EP2813770A1 (en) 2014-12-17
AU2013218945B2 (en) 2015-11-26
JP6024111B2 (en) 2016-11-09
EP2813770A4 (en) 2015-01-07
CN104081129B (en) 2017-05-31
CN104081129A (en) 2014-10-01

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