U.S. patent application number 14/368489 was filed with the patent office on 2014-12-25 for outdoor unit of refrigeration apparatus.
The applicant listed for this patent is DAIKIN INDUSTRIES, LTD.. Invention is credited to Hiroki Andou, Keitarou Hoshika, Satoshi Itou, Masashi Kuroishi, Tomohiro Masui, Takashi Ono, Junichi Shimoda.
Application Number | 20140374078 14/368489 |
Document ID | / |
Family ID | 48697381 |
Filed Date | 2014-12-25 |
United States Patent
Application |
20140374078 |
Kind Code |
A1 |
Ono; Takashi ; et
al. |
December 25, 2014 |
OUTDOOR UNIT OF REFRIGERATION APPARATUS
Abstract
An outdoor unit of a refrigeration apparatus includes a heat
exchanger constructed of aluminum or aluminum alloy, a floor frame
supporting the heat exchanger, and a spacer disposed between the
heat exchanger and the floor frame. The heat exchanger has a
plurality of flat pipes, a header manifold connected to the flat
pipes, and a plurality of fins joined to the flat pipes. Heat
exchange occurs between a fluid flowing inside the flat pipes and
air flowing outside the flat pipes. The spacer has an inclined
surface and a horizontal surface. The inclined surface guides
condensation from the heat exchanger to the floor frame. The
horizontal surface contacts the heat exchanger and the heat
exchanger is horizontally mounted on the horizontal surface.
Inventors: |
Ono; Takashi; (Sakai-shi,
JP) ; Masui; Tomohiro; (Sakai-shi, JP) ;
Hoshika; Keitarou; (Sakai-shi, JP) ; Andou;
Hiroki; (Sakai-shi, JP) ; Kuroishi; Masashi;
(Sakai-shi, JP) ; Itou; Satoshi; (Sakai-shi,
JP) ; Shimoda; Junichi; (Sakai-shi, JP) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
DAIKIN INDUSTRIES, LTD. |
Osaka-shi,Osaka |
|
JP |
|
|
Family ID: |
48697381 |
Appl. No.: |
14/368489 |
Filed: |
December 26, 2012 |
PCT Filed: |
December 26, 2012 |
PCT NO: |
PCT/JP2012/083564 |
371 Date: |
June 24, 2014 |
Current U.S.
Class: |
165/173 |
Current CPC
Class: |
F28F 2265/30 20130101;
F24F 13/222 20130101; F28D 1/0471 20130101; F24F 1/16 20130101;
F28F 1/128 20130101; F28D 1/05391 20130101; F28F 17/005 20130101;
F28F 1/10 20130101; F28F 9/002 20130101; F28F 21/067 20130101; F28F
2215/12 20130101; F28F 1/325 20130101; F24F 1/36 20130101; F28F
21/084 20130101; F28D 1/024 20130101; F28D 7/00 20130101 |
Class at
Publication: |
165/173 |
International
Class: |
F28D 7/00 20060101
F28D007/00; F28F 1/10 20060101 F28F001/10 |
Foreign Application Data
Date |
Code |
Application Number |
Dec 28, 2011 |
JP |
2011-290071 |
Claims
1. An outdoor unit of a refrigeration apparatus, the outdoor unit
comprising: a heat exchanger constructed of aluminum or aluminum
alloy, the heat exchanger having a plurality of flat pipes, a
header manifold, each of said flat pipes being connected to said
header manifold, and a plurality of fins joined to said flat pipes,
heat exchange occurring between a fluid flowing inside said flat
pipes and air flowing outside said fiat pipes; a floor frame
supporting said heat exchanger; and a spacer disposed between said
heat exchanger and said floor frame, said spacer having an inclined
surface arranged and configured to guide condensation from said
heat exchanger to said floor frame, and a horizontal surface, said
heat exchanger making contact with said horizontal surface, and
said heat exchanger being horizontally mounted on said horizontal
surface.
2. The outdoor unit according to claim 1, wherein said fin has a
water-guiding part, and said inclined surface is disposed on an
elongated portion of said water-guiding part.
3. The outdoor unit according to claim 1, wherein said spacer
includes a drainage structure disposed on a lower part of said
spacer.
4. The outdoor unit according to claim 1, wherein said spacer is
disposed on a lower end of a bent part of said heat exchanger.
5. The outdoor unit according to claim 1, wherein said spacer
includes an extended part extending diagonally upward from said
horizontal surface on said spacer.
6. The outdoor unit according to claim 2, wherein said spacer
includes a drainage structure disposed on a lower part of said
spacer.
7. The outdoor unit according to claim 6, wherein said spacer is
disposed on a lower end of a bent part of said heat exchanger.
8. The outdoor unit according to claim 7, wherein said spacer
includes an extended part extending diagonally upward from said
horizontal surface on said spacer.
9. The outdoor unit according to claim 2, wherein said spacer is
disposed on a lower end of a bent part of said heat exchanger.
10. The outdoor unit according to claim 2, wherein said spacer
includes an extended part extending diagonally upward from said
horizontal surface on said spacer.
11. The outdoor unit according to claim 3, wherein said spacer is
disposed on a lower end of a bent part of said heat exchanger.
12. The outdoor unit according to claim 3, wherein said spacer
includes an extended part extending diagonally upward from said
horizontal surface on said spacer.
13. The outdoor unit according to claim 4, wherein said spacer
includes an extended part extending diagonally upward from said
horizontal surface on said spacer.
Description
TECHNICAL FIELD
[0001] The present invention relates to an outdoor unit of a
refrigeration apparatus.
BACKGROUND ART
[0002] There is reported a structure of an outdoor unit of a
refrigeration apparatus, for example, as in patent document 1
(Japanese Laid-open Patent Application No. 2010-151387), in which a
lower end of a heat exchanger made of aluminum is formed inclined,
and a spacer member having an inclined surface facing opposite the
lower end of the heat exchanger is disposed to promote drainage
using the inclination of the spacer member.
SUMMARY OF THE INVENTION
Technical Problem
[0003] However, in the abovementioned configuration, a problem is
presented in that the lower end of the heat exchanger had to be
formed inclined and manufacturing was difficult.
[0004] An object of the present invention is to provide an outdoor
unit of a refrigeration apparatus that is not susceptible to the
effect of metal corrosion in an outdoor unit of a refrigeration
apparatus using a heat exchanger made of aluminum or aluminum
alloy.
Solution to Problem
[0005] An outdoor unit of a refrigeration apparatus according to a
first aspect of the present invention comprises a heat exchanger
made of aluminum or aluminum alloy, a floor frame for mounting the
heat exchanger, and a spacer disposed between the heat exchanger
and the floor frame. The heat exchanger has a plurality of flat
pipes, a header manifold to which each of said flat pipes is
connected, and a plurality of fins joined to the flat pipes. The
heat exchanger is arranged so that heat exchange occurs between a
fluid flowing inside the flat pipes and air flowing outside the
flat pipes. The spacer has an inclined surface and a horizontal
surface. The inclined surface guides condensation from the heat
exchanger to the floor frame. The heat exchanger makes contact with
the horizontal surface and is horizontally mounted thereon.
[0006] By virtue of the fact that the surface of the spacer facing
opposite the lower end of the heat exchanger is formed inclined
from midcourse in a short direction of the heat exchanger, water
drops falling from the heat exchanger can be guided to the floor
frame and corrosion of the heat exchanger and leakage of
refrigerant can be prevented. Furthermore, because the heat
exchanger is mounted on the horizontal surface of the spacer, there
is no need for the lower end of the heat exchanger to be formed
inclined and the heat exchanger is easy to manufacture.
[0007] A ratio of a length L1 in a long direction of the inclined
surface and a length L2 in a long direction of the horizontal
surface in plan view is not particularly limited provided that
water can be guided to the floor frame and the heat exchanger can
be mounted horizontally, but the ratio can be set to L1:L2=about
1:2-5.
[0008] The inclination of the inclined surface is not particularly
limited provided that condensation from the heat exchanger can be
guided to the floor frame, but the inclination can be set to
7-20.degree. downward from the horizontal direction. The drainage
function is insufficient if the angle of inclination is smaller
than 7.degree., and water is difficult to convey, particularly in
the case of a water-repellent material, if the inclination is
greater than 20.degree..
[0009] Condensation from the heat exchanger includes condensation
water, rainwater, and the like.
[0010] The material of the spacer is preferably rubber from the
aspects of being able to mount the heat exchanger stably and having
waterproofness and anti-vibration property, and natural rubber,
chloroprene rubber, nitrile rubber, butyl rubber,
ethylene-propylene rubber, styrene-butadiene rubber, silicone
rubber, fluorine rubber, AFLAS, hydrogenated nitrile rubber,
urethane rubber, and the like, can be used.
[0011] An outdoor unit of a refrigeration apparatus according to a
second aspect of the present invention is the outdoor unit of a
refrigeration apparatus according to the first aspect, wherein the
fin has a water-guiding part, and the inclined surface is provided
on an elongated portion of the water-guiding part.
[0012] Here, because the fin has a water-guiding part, condensation
from the heat exchanger can be guided to the spacer. Furthermore,
because the inclined surface is provided on an elongated portion of
the water-guiding part, water guided from the heat exchanger to the
spacer can be guided along the inclined surface to the floor frame,
and therefore corrosion of the heat exchanger and leakage of
refrigerant can be prevented.
[0013] An outdoor unit of a refrigeration apparatus according to a
third aspect of the present invention is the outdoor unit of a
refrigeration apparatus according to the first or second aspect,
wherein a drainage structure is provided on a lower part of the
spacer. Examples of each drainage structure include openings,
cutouts, and gutters.
[0014] Here, because water falling onto the spacer from the heat
exchanger can be guided to the floor frame from the drainage
structure on the lower part of the spacer, corrosion of the heat
exchanger and leakage of refrigerant can be prevented.
[0015] An outdoor unit of a refrigeration apparatus according to a
fourth aspect of the present invention is the outdoor unit of a
refrigeration apparatus according to any of the first to third
aspects, wherein the spacer is disposed on a lower end of a bent
part of the heat exchanger.
[0016] Here, because a place for the spacer can be secured while
making the outdoor unit compact, corrosion of the heat exchanger
and leakage of refrigerant can be prevented.
[0017] An outdoor unit of a refrigeration apparatus according to a
fifth aspect of the present invention is the outdoor unit of a
refrigeration apparatus according to any of the first to fourth
aspects, wherein an extended part extending diagonally upward from
the horizontal surface is provided on the spacer.
[0018] Here, because condensation from the heat exchanger can be
guided to the drainage structure more effectively by the extended
part, corrosion of the heat exchanger and leakage of refrigerant
can be prevented.
Advantageous Effects of Invention
[0019] In the outdoor unit of a refrigeration apparatus according
to the first aspect of the present invention, water drops falling
from the heat exchanger can be guided to the floor frame, and
corrosion of the heat exchanger and leakage of refrigerant can be
prevented. Furthermore, there is no need for the lower end of the
heat exchanger to be formed inclined, and the heat exchanger can be
manufactured easily.
[0020] In the outdoor unit of a refrigeration apparatus according
to the second aspect of the present invention, because condensation
from the heat exchanger can be guided to the spacer and furthermore
can be guided from the inclined surface to the floor frame,
corrosion of the heat exchanger and leakage of refrigerant can be
prevented.
[0021] In the outdoor unit of a refrigeration apparatus according
to the third aspect of the present invention, water falling onto
the spacer from the heat exchanger can be guided effectively to the
floor frame, and corrosion of the heat exchanger and leakage of
refrigerant can be prevented.
[0022] In the outdoor unit of a refrigeration apparatus according
to the fourth aspect of the present invention, a place for the
spacer can be secured while making the outdoor unit compact, and
corrosion of the heat exchanger and leakage of refrigerant can be
prevented.
[0023] In the outdoor unit of a refrigeration apparatus according
to the fifth aspect of the present invention, condensation from the
heat exchanger can be guided to the drainage structure more
effectively, and corrosion of the heat exchanger and leakage of
refrigerant can be prevented.
BRIEF DESCRIPTION OF THE DRAWINGS
[0024] FIG. 1 is a general perspective view of an outdoor unit of a
refrigeration apparatus according to one embodiment of the present
invention.
[0025] FIG. 2 is a general perspective view of an outdoor unit of a
refrigeration apparatus according to one embodiment of the present
invention in a condition having removed a ceiling plate, left side
plate, right front plate, and right rear plate.
[0026] FIG. 3 is a general perspective view of an outdoor heat
exchanger.
[0027] FIG. 4 is a partially enlarged view cut in a vertical
direction of flat pipes and fins of an outdoor heat exchanger. Some
reference numerals are omitted with respect to identical
members.
[0028] FIG. 5 is a plan view of a floor frame of an outdoor unit of
a refrigeration apparatus according to one embodiment of the
present invention.
[0029] FIG. 6 is a front view of a spacer according to one
embodiment of the present invention.
[0030] FIG. 7 is a plan view of a spacer according to one
embodiment of the present invention.
[0031] FIG. 8 is a sectional view along VIII-VIII in FIG. 7.
[0032] FIG. 9 is a sectional view along IX-IX in FIG. 5.
DESCRIPTION OF EMBODIMENTS
[0033] An embodiment of the present invention is described below
while referring to the drawings.
[0034] The outdoor unit of a refrigeration apparatus of the present
embodiment is used as an outdoor unit of an air-conditioning
apparatus.
(1) General Configuration of the Outdoor Unit
[0035] The outdoor unit of an air-conditioning apparatus according
to one embodiment of the present invention is illustrated in FIG.
1. FIG 1 is a perspective view illustrating the outdoor unit 20 of
an air-conditioning apparatus. The outdoor unit 20 is placed
outside a space to be air-conditioned (indoors) where air
conditioning is to be performed, and an interior of a roughly
rectangular box-form casing 50 is divided into a ventilation
compartment and a machine compartment by a partitioning plate (not
illustrated) extending vertically. The outdoor unit 20 is connected
via refrigerant-communicating piping (not illustrated) to an indoor
unit (not illustrated) disposed inside the space to be air
conditioned.
[0036] The outdoor unit 20 mainly comprises a roughly box-form
casing 50, an outdoor fan (not illustrated), refrigerant
circuit-configuring parts (not illustrated) including a heat
exchanger, compressor, valves, pipes, and the like, to configure a
refrigerant circuit, and an electrical unit (not illustrated) for
performing operation and control.
[0037] A blow-out port positioned at the center and to the left of
a front face 51 is formed on the casing 50, and air sent out by the
outdoor fan is blown out forward from the blow-out port.
[0038] The casing 50 has a ceiling plate 57, a right rear plate 56,
and a right front plate 55, and additionally has a left side plate
54 and a floor frame 8. "60" indicates a fan grill attached on the
outside of the casing 50.
[0039] FIG. 2 is a general perspective view of an outdoor unit of a
refrigeration apparatus according to one embodiment of the present
invention in a condition having removed a ceiling plate, left side
plate, right front plate, and right rear plate. A heat exchanger 25
is mounted on the floor frame 8, and an outdoor fan 35 is disposed
in front thereof. The floor frame 8 has a portion 8a standing
upright in a vertical direction (see FIG. 5) on an edge portion.
Facing the partitioning plate 58, the left side is the ventilation
compartment and the right side is the machine compartment.
[0040] FIG. 3 is a general perspective view of an outdoor heat
exchanger 25. As illustrated in FIG. 3, the outdoor heat exchanger
25 has a flat pipe 2, fins 4, and header manifolds 61 and 62. The
fins 4 are omitted in the illustration in FIG. 3. Some of the
reference numerals of the flat pipes 2 also are omitted. The fin 4
has a bent part 25b. A spacer to be described is disposed beneath
the outdoor heat exchanger 25 in a manner connected to a lower end
25a of the bent part 25b.
[0041] The outdoor heat exchanger 25 allows refrigerant flowing
inside to be condensed or evaporated by heat exchange with outside
air. The outdoor heat exchanger 25 is made entirely of aluminum or
aluminum alloy. The outdoor heat exchanger 25 is disposed inside
the casing 50, with a space being opened between the outdoor heat
exchanger and the casing 50 or with a resin member, or the like,
being placed between the casing 50 and the outdoor heat exchanger
25, so as not to be in direct contact with the casing 50 (see FIG.
1).
[0042] The outdoor heat exchange 25, as illustrated in FIG. 2,
extends along the back face of the casing 50 toward the left from
near an end part of the partitioning plate 58, changes in direction
at near a left rear corner part of the casing 50, and extends
toward the front along the left side plate 54 (see FIG. 1).
[0043] Header manifolds 61 and 62 are connected to both ends of
flat pipes 2 disposed in a plurality of stages in the vertical
direction. The header manifolds 61 and 62 have a function of
supporting the flat pipes 2, a function of guiding refrigerant to
internal channels (not illustrated) of the flat pipes 2, and a
function of collecting refrigerant discharged from the internal
channels.
[0044] FIG. 4 is a partially enlarged view out in the vertical
direction of flat pipes 2 and fins 4. The flat pipe 2 has a
vertical planar part serving as a heat-conducting surface, and a
plurality of internal channels 2a in which the refrigerant flows.
The flat pipes 2 are disposed in a plurality of stages with spacing
between in a state in which the planar parts are oriented
vertically. The fin 4 is connected to the flat pipe 2. A plurality
of cutouts 4b extending horizontally in a long and slender form are
formed on the fins 4 so that the fins 4 are interleaved with the
plurality of stages of flat pipes 2 arrayed between the header
manifolds 61 and 62. The shape of the cutout parts 4b of the fins
4, as illustrated in FIG. 4, is nearly consistent with the external
shape in section of the flat pipe 2. The fin 4 is provided with
waffles or louvers, and has one water-guiding part 4a connected in
the vertical direction at a most downstream side of the fin.
Condensation is guided along the water-guiding part 4a to the lower
part of the heat exchanger.
[0045] The floor frame 8, as illustrated in FIG. 5, mainly has a
roughly rectangular shape in plan view, and has a drain part (drain
pan) 8b. The heat exchanger not illustrated is mounted on the drain
pan, and a first drainage opening 10 and a plurality of other
openings 11 are provided on the drain pan. Water accumulating
inside the floor frame 8 is drained basically from these openings
10 and 11. The first drainage opening 10 is disposed in the lowest
position in the vertical direction, and condensation water is
drained therefrom.
[0046] A spacer 100 is disposed in a portion of the drain pan
indicated by "25c," and the bent part 25b of the heat exchanger is
mounted thereon. "26" indicates a boss for fixing the spacer 100 in
position. The spacer 100 is disposed in a manner so that a long
direction of the spacer 100 coincides with a short direction of the
heat exchanger 25. By the fact that the spacer 100 is disposed on
the lower end 25a (FIG. 3) of the bent part of the heat exchanger
25, the drainage mechanism of the heat exchanger 25 can be provided
compactly.
(2) Spacer
[0047] FIGS. 6 to 8 illustrate a front view, a plan view, and a
sectional view of a spacer 100. On the spacer 100, an inclined
surface 100a for guiding condensation from the heat exchanger 25 to
the floor frame 8 and a horizontal surface 100b for contacting with
the heat exchanger 25 and mounting the heat exchanger 25
horizontally are provided on a surface facing opposite the lower
end of the heat exchanger 25. The inclination of the inclined
surface 100a is 10.degree. downward from the horizontal
direction.
[0048] The inclined surface 100a is provided so as to incline from
midcourse in a short direction of the heat exchanger 25. Water
drops falling from the heat exchanger 25 can thereby be led to the
floor frame 8. As illustrated in FIG. 5, an opening 11 is provided
on the floor frame 8 near a position 25c where the spacer 100 is
disposed, and drainage is therefore achieved smoothly.
[0049] A ratio of a length L1 in a long direction of the inclined
surface 100a and a length L2 in a tong direction of the horizontal
surface 100b in plan view is L1:L2=about 1:3. By providing the
inclined surface 100a and the horizontal surface 100b with such
ratio, drainage of condensation from the heat exchanger 25 is
promoted, and at the same time, there is no need for the tower end
of the heat exchanger 25 to be inclined and the heat exchanger 25
can be easily mounted horizontally.
[0050] A drainage opening 101 is provided on a lower part of the
spacer 100. The portion where the drainage opening 101 is provided
is thinner than a thickness of the spacer 100, and water is
therefore easily guided to the drainage opening 101.
[0051] The spacer 100 is furthermore provided with an extended part
102 extending diagonally upward from the horizontal surface 100b.
The heat exchanger 25 can be anchored by the extended part 102, an
anti-vibration property is improved, and drainage is further
promoted. The heat exchanger also can be prevented from contacting
the upright portion of the floor frame when the heat exchanger is
shifted by vibration.
[0052] A depression 103 is provided on a surface of the spacer 100
on an opposite side to the surface facing opposite the heat
exchanger. A boss 26 (FIG. 5) provided on the floor frame 8 is
inserted into the depression 103, and the position of the spacer
100 relative to the floor frame 8 is determined.
[0053] FIG. 9 illustrates a condition in which the outdoor heat
exchanger 25 is mounted on the floor frame 8 via the spacer 100.
FIG. 9 is a sectional view along IX-IX in FIG. 5. The spacer 100 is
disposed in the position 25c where the spacer is disposed on the
floor frame 8. The heat exchanger 25 is mounted on the spacer 100,
with the horizontal surface 100b provided on the side of the spacer
100 opposite the surface facing opposite the floor frame 8
contacting with the lower end 25a of the bent part 25b of the heat
exchanger 25 having the flat pipes 2 and the fins 4. The side face
of the heat exchanger 25 is disposed so as to be prevented from
directly contacting with the floor frame 8 by the extended part
102. The anti-vibration property of the heat exchanger can thereby
be increased and water is effectively guided to the opening 11 of
the floor frame 8.
[0054] Condensation from the heat exchanger 25 is guided along the
water-guiding part 4a of the fin 4 to the spacer 100, and is guided
by the inclined surface 100a to the floor frame 8. Because the
drainage opening 101 on the spacer 100 is provided on a portion on
a lower end of the fin 4, a portion of the condensation dripping on
the horizontal surface 100b of the spacer 100 is guided to the
floor frame 8 by the drainage opening 101.
(3) Features of the Outdoor Unit
[0055] (3-1) The outdoor unit 20 of the air-conditioning apparatus
1 according to the present embodiment comprises a heat exchanger 25
made of aluminum or aluminum alloy, a floor frame 8 for mounting
the heat exchanger 25, and a spacer 100 disposed between the heat
exchanger 25 and the floor frame 8. The spacer 100 has an inclined
surface 100a and a horizontal surface 100b. The inclined surface
100a guides condensation from the heat exchanger 25 to the floor
frame 8. The horizontal surface 100b contacts with the heat
exchanger 25 and mounts the heat exchanger 25 horizontally.
[0056] Here, by virtue of the fact that the surface of the spacer
facing opposite the lower end of the heat exchanger is formed
inclined from midcourse in a short direction of the heat exchanger,
water drops falling from the heat exchanger can be guided to the
floor frame and corrosion of the heat exchanger and leakage of
refrigerant can be prevented. Furthermore, because the heat
exchanger is mounted on the horizontal surface of the spacer, there
is no need for the lower end of the heat exchanger to be formed
inclined and the heat exchanger is easy to manufacture.
[0057] (3-2) In the outdoor unit 20 of the air-conditioning
apparatus 1 of the present embodiment, the fin 4 has a
water-guiding part 4a, and the inclined surface 100a is provided on
an elongated portion of the water-guiding part 4a.
[0058] Here, condensation from the heat exchanger is guided along
the water-guiding part to the spacer. Condensation is also guided
from the inclined surface of the elongated portion of the
water-guiding part, and corrosion of the heat exchanger and leakage
of refrigerant are prevented.
[0059] (3-3) In the outdoor unit 20 of the air-conditioning
apparatus 1 according to the present embodiment, a drainage opening
101 is provided on a lower part of the spacer 100.
[0060] Here, because water falling onto the spacer 100 from the
heat exchanger 25 is guided to the floor frame 8 from the drainage
opening 101 on the lower part of the spacer 100, corrosion of the
heat exchanger 25 and leakage of refrigerant are prevented.
[0061] (3-4) In the outdoor unit 20 of the air-conditioning
apparatus 1 according to the present embodiment, the spacer is
disposed on a lower end of a bent part of the heat exchanger.
[0062] Here, because a place for the spacer can be secured while
making the outdoor unit compact, corrosion of the heat exchanger
and leakage of refrigerant are prevented.
[0063] (3-5) In the outdoor unit 20 of the air-conditioning
apparatus 1 according to the present embodiment, an extended part
extending diagonally upward from the horizontal surface is provided
on the spacer.
[0064] Here, because condensation from the heat exchanger can be
guided to the drainage structure more effectively by the extended
part, corrosion of the heat exchanger and leakage of refrigerant
are prevented.
(4) Modified Example
[0065] A modified example of the present embodiment is presented
below. A plurality of modified examples may be appropriately
combined.
(4-1) Modified Example A
[0066] Although the outdoor unit 20 illustrated in the above
embodiment is used in an air-conditioning apparatus 1, the outdoor
unit is not limited to this and may be used in another
refrigeration apparatus.
INDUSTRIAL APPLICABILITY
[0067] According to the present invention as above, susceptibility
to an effect of metal corrosion can be suppressed, and this is
useful for an outdoor unit of a refrigeration apparatus.
REFERENCE SIGNS LIST
[0068] 2 Flat pipe [0069] 4 Fin [0070] 4a Water-guiding part [0071]
61, 62 Header manifold [0072] 8 Floor frame [0073] 8b Drain part
(drain pan) [0074] 10 First drainage opening [0075] 11 Opening
[0076] 20 Outdoor unit [0077] 25 Outdoor heat exchanger (heat
exchanger) [0078] 25b Bent part [0079] 35 Outdoor fan [0080] 50
Casing [0081] 51 Front plate [0082] 54 Left side plate [0083] 55
Right front plate [0084] 56 Right rear plate [0085] 57 Ceiling
plate [0086] 58 Partitioning plate [0087] 60 Fan grill [0088] 100
Spacer [0089] 100a Inclined surface [0090] 100b Horizontal surface
[0091] 101 Drainage opening [0092] 102 Extended part
CITATION LIST
Patent Literature
[0093] Patent document 1: Japanese Laid-open Patent Application No.
2010-151387
* * * * *