AU2019278063A1 - Ceiling-embedded air conditioner - Google Patents
Ceiling-embedded air conditioner Download PDFInfo
- Publication number
- AU2019278063A1 AU2019278063A1 AU2019278063A AU2019278063A AU2019278063A1 AU 2019278063 A1 AU2019278063 A1 AU 2019278063A1 AU 2019278063 A AU2019278063 A AU 2019278063A AU 2019278063 A AU2019278063 A AU 2019278063A AU 2019278063 A1 AU2019278063 A1 AU 2019278063A1
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- Australia
- Prior art keywords
- air
- decorative panel
- unit
- panel
- blowing part
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0011—Indoor units, e.g. fan coil units characterised by air outlets
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0011—Indoor units, e.g. fan coil units characterised by air outlets
- F24F1/0014—Indoor units, e.g. fan coil units characterised by air outlets having two or more outlet openings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0043—Indoor units, e.g. fan coil units characterised by mounting arrangements
- F24F1/0047—Indoor units, e.g. fan coil units characterised by mounting arrangements mounted in the ceiling or at the ceiling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/02—Ducting arrangements
- F24F13/06—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
- F24F13/065—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser formed as cylindrical or spherical bodies which are rotatable
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/20—Casings or covers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2221/00—Details or features not otherwise provided for
- F24F2221/14—Details or features not otherwise provided for mounted on the ceiling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2221/00—Details or features not otherwise provided for
- F24F2221/26—Details or features not otherwise provided for improving the aesthetic appearance
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)
- Air-Flow Control Members (AREA)
Abstract
[Problem] To make it possible to blow conditioning air over a wider area. [Solution] The present invention is provided with a rotating unit 78 as an air blowing part that rotates around an axis normal to a virtual plane on the rear surface side of a decorative panel that is parallel to the bottom surface of a body unit, and blows conditioning air, which is delivered by a blower 31, in a predetermined direction, wherein the rotating unit 78 preferably has a truncated cone that protrudes toward a room to be air conditioned from the panel surface of the decorative panel, and an air blowing outlet 783, for blowing the conditioning air delivered by the blower 31 along the panel surface, is formed in a portion of a side surface of the truncated cone.
Description
Description
Title of Invention: CEILING-EMBEDDED AIR CONDITIONER
Technical Field
[0001]
The present invention relates to a ceiling-embedded
air conditioner, and in particular relates to a
structure of an indoor unit.
Background Art
[0002]
In a ceiling-embedded air conditioner, an outdoor
unit installed outdoors and an indoor unit installed in
an attic of an air-conditioning room are connected by
gas pipes and liquid pipes to form a refrigerant
circuit. The indoor unit has a box-type body unit
embedded in an attic and a decorative panel disposed on
the air-conditioning room side of the ceiling and
mounted on the body unit.
[0003]
As an example, in the invention described in Patent
Literature 1, the body unit is provided with a U-shaped
heat exchanger, a fan casing in the center of the heat
exchanger, and a blower fan formed of a sirocco fan
surrounded by the fan casing. The decorative panel is
formed with a blowing port at the center and suction
ports along three sides below the heat exchanger.
[0004]
The air drawn in through the suction ports is heat
exchanged with refrigerant in the heat exchanger and can
then be blown out through the blowing port in one
direction. With the heat exchanger surrounding the
blower fan, the distance between the blower fan and the
surface of the heat exchanger is almost constant so that
the airspeed and air volume of the air passing through
the heat exchanger are less biased, and the heat
exchanger can be used effectively to increase the heat
exchange capacity.
Citation List
Patent Literature
[00051
Patent Literature 1: Japanese Patent Laid-Open No. 2000
213767
Summary of Invention
Technical Problem
[00061
Even though at least one of the vertical air vent
deflector and the horizontal air vent deflectors is
provided in the air blowing ports, the air blowing ports
are often opened on the panel surface of the decorative
panel, which poses a limitation on an ability to widen
the blowing range of the conditioned air.
[0007]
Accordingly, an object of the present invention is to provide a ceiling-embedded air conditioner including an air blowing part which can blow out conditioned air over a wider area.
Solution to Problem
[00081
In order to solve the above-mentioned problems, the
present invention provides a ceiling-embedded air
conditioner including:
a box-type body unit including a blower and a heat
exchanger inside and disposed in an attic of an air
conditioning room; and a decorative panel mounted on a
bottom surface of the above-described body unit along a
ceiling surface of the above-described air-conditioning
room, the above-described decorative panel including an
air suction part and an air blowing part, wherein
the above-described air blowing part comprises a
movable blowing part on the above-described decorative
panel side, the movable blowing part including a
rotating unit that rotates around an axis that is normal
to a virtual plane on a rear surface side of the above
described decorative panel that is parallel to a bottom
surface of the above-described body unit to blow
conditioned air delivered by the above-described blower
along a panel surface of the above-described decorative
panel.
[00091
In the present invention, the above-described rotating unit has a truncated cone shape that protrudes from the panel surface of the above-described decorative panel toward the above-described air-conditioning room side and preferably includes an air blowing port that blows air delivered by the above-described blower along the above-described panel surface on a side surface of the above-described truncated cone.
[0010]
According to a preferable aspect of the present
invention, the above-described air blowing part further
includes on the above-described decorative panel side a
fixed blowing part that blows the conditioned air
delivered by the above-described blower toward one
specified side of the above-described decorative panel,
and the above-described movable blowing part is disposed
adjacent to the above-described fixed blowing part.
Advantageous Effects of Invention
[0011]
According to the present invention, the conditioned
air can be blown out over a wider range.
Brief Description of Drawings
[0012]
[Figure 1] Figure 1 is an explanatory drawing
illustrating a state of installation of a ceiling
embedded air conditioner according to the present
invention.
[Figure 2] Figure 2 is a perspective view illustrating
the above-described ceiling-embedded air conditioner.
[Figure 3] Figure 3 is an exploded perspective view of
the above-described ceiling-embedded air conditioner.
[Figure 4] Figure 4 is a schematic cross-sectional view
taken along the A-A line of Figure 2.
[Figure 5] Figure 5 is a schematic cross-sectional view
taken along the C-C line of Figure 4.
[Figure 6] Figure 6 is a schematic cross-sectional view
taken along the B-B line of Figure 2.
[Figure 7] Figure 7 is a schematic cross-sectional view
taken along the D-D line of Figure 4.
[Figure 8] Figure 8 is a perspective cross-sectional
view taken along the B-B line of Figure 2.
[Figure 9] Figure 9 is a bottom surface side perspective
view of the body unit provided in the above-described
ceiling-embedded air conditioner.
[Figure 10] (a) is a perspective view illustrating a
decorative panel and a frame at a distance from each
other, and (b) is a perspective view illustrating a
packaged state of the decorative panel.
[Figure 11] Figure 11 is a bottom view of the decorative
panel viewed from the air-conditioning room side when an
operation is stopped.
[Figure 12] Fig. 12 is a bottom view of the decorative
panel during operation viewed from the air-conditioning
room side.
[Figure 13] Figure 13 is a perspective view of Figure
12.
[Figure 14] Figure 14 is a perspective view illustrating
a partitioning plate unit to be mounted on a rear
surface side of the decorative panel.
[Figure 15] Figure 15 is a perspective view illustrating
a central blowing unit to be mounted on the above
described partitioning plate unit.
[Figure 16] Figure 16 is a perspective view illustrating
a rotating unit to be mounted on the above-described
partitioning plate unit.
[Figure 17] (a) is an exploded perspective view
illustrating the frame supporting the partitioning plate
unit, and (b) is a perspective view illustrating the
state in which the same frame is disposed on the rear
surface of the decorative panel.
[Figure 18] Figure 18 is an external perspective view
illustrating a fan unit and a movable blowing part.
[Figure 19] Figure 19 is an exploded perspective view of
a partitioning plate unit including drive means of the
rotating unit.
[Figure 20] Figure 20 is a perspective view illustrating
the rotating unit with a rotating ring attached thereto.
[Figure 21] Figure 21 is a plan view illustrating a
rotating ring.
[Figure 22] Figure 22 is an exploded perspective view of
a motor unit.
[Figure 23] Figure 23 is a plan view illustrating a
portion of the partitioning plate unit including an opening with the rotating ring mounted thereon.
[Figure 24] Figure 24 is a perspective view illustrating
a stable seat for preventing horizontal direction
rattling of the rotating ring.
[Figure 25] Figure 25 is a cross-sectional view
illustrating a state in which a stable seat is mounted.
[Figure 26] Figure 26 is a perspective view illustrating
a protrusion for preventing vertical rattling of the
rotating ring.
[Figure 27] Figure 27 is a perspective view illustrating
a rear surface side of a duct cover.
[Figure 28] Figure 28 is a cross-sectional view
illustrating function of horizontal rattling of the
rotating ring by the protrusion.
[Figure 29] Figure 29 is a bottom view illustrating the
rotating ring.
[Figure 30] Figure 30 is a cross-sectional view
illustrating the outer flange of the rotating ring with
a seal mounted thereon.
[Figure 31] Figure 31 is a perspective view illustrating
an improved fan unit.
[Figure 32] Figure 32 is a plan view illustrating the
above-described fan unit.
Description of Embodiments
[0013]
Some forms of implementing the present invention
will be described in detail below as examples based on the accompanying drawings. The present invention is not limited thereto.
[00141
In an air conditioner according to the present
invention, an outdoor unit (not illustrated) installed
outdoors and an indoor unit 1 mounted on a ceiling Ti of
an air-conditioning room R are connected by a gas pipe
and a liquid pipe (both not illustrated) to form a
refrigerant circuit.
[0015]
Referring to Figure 1 to Figure 3, the indoor unit
1 of the present embodiment is a ceiling-embedded air
conditioner having a box-type body unit 10 embedded into
an attic T2, and a decorative panel 70 disposed on the
air-conditioning room R side of the ceiling Ti and
mounted on a bottom surface 101 of the same body unit
, and in particular, is a ceiling-embedded air
conditioner of an omnidirectional blowing type, which
blows conditioned air over a wide range.
[0016]
Referring to Figure 3, the body unit 10 has a
rectangular-shaped top panel 111 formed of sheet metal
and a box-type outer body 11 formed from side plates
112, 113 extending downward from four sides of the top
panel 111. Two mounting brackets 12 each are secured to
two side plates 113 facing each other, with the side
plate 112 being the side plate on the long side of the
top panel 111 and the side plate 113 being the side plate on the short side of the top panel 111.
[0017]
The body unit 10 is installed in the attic T2 by
suspending the mounting brackets 12 with a plurality of
hanging bolts, not illustrated, which are fixed to the
attic T2.
[0018]
The decorative panel 70 has a panel part 71 that
forms a main body of the decorative panel 70, which is
larger than the top panel 111 and has a rectangular
shape, and a side wall portion 72 that is erected from a
rear surface 70R of the panel part 71 to the body unit
side and is sized to fit, and mounted on, an opened
bottom surface of the box-type outer body 11 (the bottom
surface 101 of the body unit 10).
[0019]
The panel part 71 has an air suction part 73
squarely opened on the side of one side 70b located at
the rear out of the long sides facing each other, and an
air blowing part 74 on the side of the other side 70a
located in front of the long side that faces the one
side 70b.
[0020]
In the indoor unit 1 in Figure 2, the direction of
the top panel 111 will be described below as upper
surface or above, the direction of the air-conditioning
room R as bottom surface or below, the side of the air
blowing part 74 as front surface or front, the side of the air suction part 73 as back surface side or rear, the side of the left short side 70c as left side surface or leftward, and the side of the right short side 70d as right side surface or rightward. The same applies to each of the parts.
[0021]
The side wall portion 72 includes, as illustrated
in Figure 10(a), a frame 721 sized to enclose the air
suction part 73 and the air blowing part 74 formed in a
square shape along each side of the panel part 71 (long
sides 70a, 70b, short sides 70c, 70d), and a beam 722
bridged between the short sides of the frame 721 (short
sides 70c, 70d of the panel part 71), and is screwed
integrally to the rear surface of the panel part 71
(decorative panel 70).
[0022]
The frame 721 and the beam 722 are both made of
sheet metal, and the beam 722 is placed on a
partitioning part 713 formed between the air suction
part 73 and the air blowing part 74 of the panel part
71.
[0023]
In this configuration, as illustrated in Figure
(b), when packing the decorative panel 70, the beam
722 is held down by a protrusion on the packing material
side, and can thereby prevent damage due to impact such
as when dropped. The beam 722 also provides a structure
that can withstand a load applied in a direction parallel to a panel surface 70S of the decorative panel
70.
[0024]
The beam 722 may be bridged between the long sides
a and 70b of the frame 721, depending on the shape and
arrangement of the air suction part 73 and the air
blowing part 74, or the like.
[0025]
<Outer Body>
Next, referring to Figure 3 to Figure 6, the parts
housed in the body unit 10 will be described. The inner
surface of the top panel 111 of the outer body 11 is
provided with a heat insulating material 13 formed of a
polystyrene foam having a thick plate thickness.
[0026]
A thin heat insulating sheet (not illustrated) is
sufficient for the inner surface of the side plates 112,
113 of the outer body 11, instead of the heat insulating
material 13. The center of the heat insulating material
13 is open and a part of the top panel 111 is exposed
when viewed from below. A heat exchanger 20 and a fan
unit 30 are fixed to the exposed part of the top panel
111.
[0027]
As illustrated in Figure 2, an electrical component
box 14 containing electrical components (not
illustrated) that control the indoor unit 1 is mounted
on the outer surface on the right side surface of the outer body 11.
[0028]
<Heat Exchanger>
The heat exchanger 20 is of a fin-tube type formed
from a plurality of reed-shaped aluminum fins 23
arranged in parallel and a plurality of heat transfer
tubes 22 penetrating the aluminum fins 23, and is
provided with two heat exchanger sections, or a front
heat exchanger section (first heat exchanger section)
L on the left side in Figure 4 and a rear heat
exchanger section (second heat exchanger section) 20R,
on the right side also in Figure 4 as two heat exchanger
sections separated from each other.
[0029]
The front heat exchanger section 20L and the rear
heat exchanger section 20R are mounted on the top panel
111 so as to face each other. The front heat exchanger
section 20L and the rear heat exchanger section 20R may
be arranged parallel to each other almost perpendicular
to the top panel 111, but are preferably assembled so as
to slant downwards, in which the spacing (distance) on
the upper end side is wider (longer) than the spacing
(distance) on the lower end side as illustrated in
Figure 4, in order to keep the height dimensions low and
to increase the heat exchange area. Instead of slanting
downwards, slanting upwards, in which the spacing
(distance) on the upper end side is narrower (shorter)
than the spacing on the lower end side, is also applicable.
[00301
In any case, both the left and right ends of the
front heat exchanger section 20L and the rear heat
exchanger section 20R are coupled respectively by
coupling plates 21 and 21. In this way, the space inside
the heat exchanger 20 functions as a blower chamber F
with both the left and right ends blocked by the
coupling plates 21, 21. A bottom surface of the heat
exchanger 20 (a surface between lower ends of the front
heat exchanger section 20L and the rear heat exchanger
section 20R) is blocked by a drain pan 40, as described
below.
[0031]
In this manner, since both the left and right ends
of the front heat exchanger section 20L and the rear
heat exchanger section 20R are blocked by the coupling
plates 21, 21, all the air drawn in from the air suction
part 73 passes through the front heat exchanger section
L and the rear heat exchanger section 20R, and thus
the heat exchange capacity is further enhanced without
wasted air flow.
[0032]
In the interval between the heat exchanger 20 and
the outer body 11, a first air suction chamber Si is
provided between the outer body 11 and the rear heat
exchanger section 20R, and a second air suction chamber
S2 is provided between the outer body 11 and the front heat exchanger section 20L. The first air suction chamber Si is disposed directly above the air suction part 73, and the second air suction chamber S2 is communicated with the air suction part 73 via an air conduction path L described below.
[00331
<Blower Fan>
The fan unit 30 is located in the blower chamber F
provided inside the heat exchanger 20. The fan unit 30
has sirocco fan type blower fans 31, a fan motor 36, a
fan mount 311 (see Figure 3) which supports and fixes
the blower fans 31 to the top panel 111, and a motor
mount 361 (see Figure 3) which fixes the fan motor 36 to
the top panel 111.
[0034]
The blower fan 31 includes a tubular impeller
(sirocco fan) 32 provided with a plurality of blades, a
spiral fan casing 34 housing the impeller 32, and a
rotating shaft 35 coupled to the center of the impeller
32.
[00351
The number of blower fans 31 is optionally selected
according to the required air conditioning capacity, but
in the present embodiment, four fans are arranged
coaxially side-by-side. The blower fans 31 have the same
structure, respectively.
[00361
In the fan unit 30, the fan motor 36 is fixed to the top panel 111 by the motor mount 361, and then two each of the blower fans 31 are coupled to each other at both ends of the fan motor 36 by a rotating shaft 35.
Both ends of the rotating shaft 35 are fixed to the top
panel 111 via bearing plates, not illustrated, for
example, made of an L-shaped bracket. There is also a
fan fixing section 341 (see Figure 4) at the upper part
of the fan casing 34, which is fixed to the top panel
111 with screws.
[0037]
The fan casing 34 includes a housing section 342
that houses the impeller 32, and a tubular air-blowing
section 343 that is formed continuously from the housing
section 342 and extends downward beyond the lower end of
the heat exchanger 20. A fan suction port 344 is
circularly opened on the side surface of the housing
section 342 to draw air into the impeller 32.
[0038]
The fan casing 34 may be formed by dividing the
interior into upper and lower compartments by a plane
parallel to the axis of the impeller 32 or may be formed
by dividing the interior into left and right
compartments by a plane perpendicular to the axis of the
impeller 32 so that the impeller 32 can be housed
inside. In the interior of the fan casing 34, the
housing section 342 and the air-blowing section 343 are
continued to form an airflow path 33 for blown air H.
[0039]
As described above, in the present embodiment,
since the fan unit 30 is disposed with the internal
space surrounded by the heat exchanger 20 as the blower
chamber F, when the impellers 32 of the blower fans 31
rotate, negative pressure is created inside the blower
chamber F, and thus the air from the air suction part 73
passes through the front heat exchanger section 20L and
the rear heat exchanger section 20R, enters the blower
chamber F, is sucked into the fan suction ports 344, and
discharged to the peripheries of the impellers 32, and
the discharged air is blown out along the airflow paths
33 in the fan casings 34 in one direction and blown out
of the air blowing part 74 into the air-conditioning
room R.
[0040]
<Drain Pan>
A drain pan 40 is provided at the lower end of the
heat exchanger 20 to receive drained water produced by
the heat exchanger 20. The drain pan 40 is molded
integrally with an insulating member 41 made of
polystyrene foam and a resin-made drain sheet 42
provided on a surface facing the heat exchanger 20.
[0041]
The drain pan 40 is formed in a rectangular shape
having a size that covers the opening surface of the
lower end side of the heat exchanger 20 and is also a
partitioning plate that partitions the blower chamber F
from the air conduction path L described below. The drain pan 40 is provided with ventilation holes 43 through which the tubular air-blowing sections 343 of the fan unit 30 are fitted by the number corresponding to the number of the blower fans 31 (four in the present embodiment).
[0042]
As described above, as the heat exchanger 20
includes the front heat exchanger section 20L and a rear
heat exchanger section 20R arranged so as to slant
downwards, and thus the bottom surface is narrower than
the upper surface, the drain pan 40 is correspondingly
small, and the area occupied by the drain pan 40 in the
body unit 10 is small, so that the ventilation
resistance by the drain pan 40 is also reduced and the
ventilation area around the drain pan 40 is enlarged to
enhance the ventilation efficiency.
[0043]
On the drain sheet 42 side of the drain pan 40, a
flume section 45 is provided to receive the drained
water produced by the heat exchanger 20. Since the
condensation water generated on the outer side of the
fan casing 34 during cooling operation can be received
by the drain pan 40, it is preferable to provide
waterproofing around the ventilation holes 43.
[0044]
Although not illustrated, the drain pan 40 may be
provided with a drain pump and a drain hose for
discharging the drained water, as well as a float switch, or the like, for the on-off controlling of the drain pump.
[00451
<Decorative Panel>
Referring to Figure 11 to Figure 13, the
configuration of the decorative panel 70 will be
described. The decorative panel 70 has the air blowing
part 74 on one long side 70a side and the air suction
part 73 on the other long side 70b side. The air blowing
part 74 is in particular formed as a raised part 740 in
which a portion of the panel part 71 is raised in a
trapezoidal shape in a cross-section along the long side
a toward the air-conditioning room R.
[0046]
According to the present embodiment, the raised
part 740 is ellipsoidal, which is a rectangular shape
with rounded corners including two parallel lines of
equal length and two semicircles, and has a side surface
(peripheral surface) forming an inclined surface. The
air blowing part 74 has a fixed blowing part 75 in the
center portion of the raised part 740 and has movable
blowing parts 77L, 77R on both left and right sides.
When it is not necessary to distinguish between movable
blowing parts 77L and 77R, they are collectively
referred to as movable blowing part 77.
[0047]
Referring in conjunction with Figure 16, the
movable blowing part 77L has a truncated cone-shaped rotating unit 78L that rotates within a predetermined range of angles around the axis that is normal to a virtual plane on the rear surface 70R side of the decorative panel 70 parallel to the bottom surface 101 of the body unit 10. The movable blowing part 77R likewise has a truncated cone-shaped rotating unit 78R that rotates within a predetermined range of angles around the axis that is normal to a virtual plane on the rear surface 70R side of the decorative panel 70 parallel to the bottom surface 101 of the body unit 10.
The virtual plane on the rear surface 70R side of the
decorative panel 70 is also parallel to the ceiling
surface Ti of the air-conditioning room R.
[0048]
Semicircular portions are formed at both ends of
the raised part 740 by a portion of these rotating units
78L and 78R. When it is not necessary to distinguish
between rotating units 78L and 78R, they are
collectively referred to as rotating unit 78.
[0049]
As can be seen from the perspective view of Figure
13, a top surface (bottom surface) 751 of the fixed
blowing part 75 and a top surface (bottom surface) 781
of the rotating unit 78 are always on the same plane,
even when the rotating units 78 are in a rotated state,
to improve the design.
[0050]
The fixed blowing part 75 is a trapezoidal shape in a cross-section, with a first air blowing port 754 opening on a side surface on the front long side
(specified side) 70a side and facing the long side 70a,
is provided with horizontal air vent deflectors 752 (see
Figure 15) within a first air blowing port 754, and is
provided with a vertical air vent deflector 753 on the
opening surface of the first air blowing port 754.
[0051]
The movable blowing part 77 is provided with a
second air blowing port 783 on a portion of the side
surface of the rotating unit 78, and the second air
blowing port 783 is provided with a vertical air vent
deflector 782. Since the rotation of the rotating unit
78 changes the direction of the flow of air in the left
and right directions, the movable blowing part 77 does
not need a horizontal air vent deflector. The first air
blowing port 754 of the fixed blowing part 75 and the
second air blowing port 783 of the movable blowing part
77 are opened along the side surfaces having the same
angle of inclination in order to give a sense of design
unity to these air blowing ports 754 and 783.
[0052]
While the air blowing direction of the fixed
blowing part 75 is in the direction of the long side
a, the movable blowing part 77 rotates between a first
position where the second air blowing port 783 faces the
long side 70a and a second position where the same faces
the short sides 70c, 70d, and within this rotational range, the conditioned air sent from the blower fan 31 is blown out in the specified direction.
[00531
As illustrated in Figure 11, when the movable
blowing part 77 is in the first position, the first air
blowing port 754 and the second air blowing port 783 are
linearly aligned. In this case, it is desirable to
provide dummy flaps 791 and 791 on both sides of the
first air blowing port 754 in order to create the
appearance that the first air blowing port 754 and the
second air blowing port 783 are continuous. The dummy
flaps 791 are also located on the same inclined surface
as the first air blowing port 754 and the second air
blowing port 783.
[0054]
Figure 12 and Figure 13 illustrate the state in
which the left side movable blowing part 77L is in the
first position and the right side movable blowing part
77R is in the second position facing the short side 70d.
By the movable blowing part 77 being configured to be
rotatable, the indoor unit 1 is an omnidirectional
(multi-directional) blowing type capable of blowing out
conditioned air in all directions except in the
direction of the long side 70b on the rear side.
[00551
As illustrated in Figure 12 and Figure 13, even if
the second air blowing port 783 of the movable blowing
part 77 (77L) is rotated to the second position facing the short sides, the portion other than the second air blowing port 783 is the side surface of a cone, thus providing a sense of continuity with the first air blowing port 754 in appearance. In other words, even if the movable blowing part 77 is rotated, the basic shape of the air blowing part 74 (an ellipsoidal ridge shape) is maintained.
[00561
According to the present embodiment, the first air
blowing port 754 of the fixed blowing part 75 and the
second air blowing port 783 of the movable blowing part
77 are formed on the side surface of a raised part 740
with a portion of the panel part 71 raised in a
trapezoidal shape in a cross-section toward the air
conditioning room R side, so that conditioned air is
blown out from the first air blowing port 754 and the
second air blowing port 783 in an almost horizontal
direction along the panel surface 70S of the decorative
panel 70, allowing the conditioned air to spread farther
away.
[0057]
Also, although the conditioned air is blown out of
the first air blowing port 754 and the second air
blowing port 783 at the same time, it is difficult to
create a boundary between the air flow blown out of the
first air blowing port 754 and the air flow blown out of
the second air blowing port 783, so that the air
conditioning room R is uniformly conditioned.
[00581
Unlike the above-described embodiment, the first
air blowing port 754 and the second air blowing port 783
may be opened in a vertical plane that is normal to the
panel surface (or ceiling surface) of the decorative
panel 70.
[00591
In the above-described embodiment, the fixed
blowing part 75 and the left and right movable blowing
parts 77 are contained within the ellipsoidal raised
part 740. However, as long as the movable blowing part
77 can be rotated around an axis that is normal to the
virtual plane on the rear surface 70R side of the
decorative panel 70 parallel to the bottom surface 101
of the body unit 10, it may be simply an aspect in which
the movable blowing parts 77 are disposed on both sides
of the fixed blowing part 75 irrespective of the
appearance, and this aspect is also included in the
present invention.
[00601
On the rear surface 70R side of the decorative
panel 70, a partitioning plate unit 50 illustrated in
Figure 14 is mounted. Referring in conjunction with the
preceding Figure 4, Figure 9, etc., the partitioning
plate unit 50 includes, on its upper surface side (the
surface side facing the drain pan 40), four ducts 51
(51a to 51d) which are each fitted to the four
ventilation holes 43 (43a to 43d; see Figure 9) formed in the drain pan 40 and communicated with the air blowing section 343 of the fan unit 30.
[0061]
In the present embodiment, the ventilation holes 43
(43a to 43d) are square holes, and the ducts 51 (51a to
51d) fitted thereto are square tubular shapes (the shape
of a square tube), and the ducts 51 (51a to 51d) extend
as square tubes to the rear surface 70R of the
decorative panel 70.
[0062]
Two of these ducts 51a, 51b on the inner side are
fitted to the corresponding ventilation holes 43a, 43b,
respectively, and two ducts 51c, 51d disposed on the
outside are fitted to the corresponding ventilation
holes 43a, 43b, respectively.
[0063]
The ducts 51a and 51b are the ducts for the fixed
blowing part 75, and as illustrated in Figure 15, a
central blowing unit 751 with one chamber 751a, which is
allocated across the ducts 51a and 51b, is mounted on
the lower surface side of the partitioning plate unit
50.
[0064]
The horizontal air vent deflectors 752 are provided
in chamber 751a. The first air blowing port 754 is
formed on the front surface side of the central blowing
unit 751, and the vertical air vent deflector 753 is
provided therein.
[00651
Although not illustrated, a motor to drive the
horizontal air vent deflectors 752 is disposed on the
back surface of chamber 751a, and a motor to drive the
vertical air vent deflector 754 is disposed beside the
first air blowing port 754.
[00661
The outer ducts 51c and 51d are ducts for the
movable blowing part 77, and as illustrated in Figure
16, a rotating unit 78L provided on the left side
movable blowing part 77L is rotatably mounted on the
lower end of the left side duct 51c, and a rotating unit
78R provided by the right side movable blowing part 77R
is rotatably mounted on a lower end of the right side
duct 51d.
[0067]
Both of the rotating units 78L and 78R are driven
by a motor. The motor driving the rotating unit 78 is
located within a motor cover 512, illustrated in Figure
14 beside the outer ducts 51c and 51d.
[00681
In the present embodiment, the rotating units 78L,
78R can be rotated from the first position to a position
of 90- or more, for example, 100-, as the second
position, respectively. However, if rotated to such
positions, the short-circuit phenomenon, in which the
blown air is sucked into the air suction part 73 instead
of being directed to the air-conditioning room R may occur.
[00691
To prevent such phenomenon, walls 711 are provided
between the rotating units 78 and the air suction part
73, referring to Figure 11 to Figure 13.
[0070]
In the present embodiment, the walls 711 are formed
in the form of slopes that rise from portions of the
panel part 71 around the rotating units 78 from the
short sides 70c, 70d sides toward between the rotating
units 78L, 78R and the air suction part 73 to the height
of the top surfaces 781 of the rotating units 78 or to
the height of the air suction part 73. In Figure 11 to
Figure 13, ridge lines 711a of walls 711 are illustrated
to be sloping.
[0071]
In this configuration, each wall 711 prevents the
short-circuit phenomenon when the rotating unit 78 is
rotated to near its maximum rotational position, and the
blown air flow will reach farther away along a slope
surface 712 of the wall 711. In other words, the wall
711 not only prevents the short-circuit phenomenon, but
also functions as an air flow guiding surface that
allows the blown air to reach farther away by being
provided with a slope surface 712.
[0072]
According to the present embodiment, the air blown
from the first air blowing port 754 and the second air blowing port 783 flows along the panel surface of the decorative panel 70, so that a remaining panel surface
S of the decorative panel 70, except for the air
suction part 73, acts as an air flow guiding surface,
including the slope surface 712 of the wall 711.
[0073]
As explained earlier, the decorative panel 70 is
mounted on the body unit 10 by fitting the side wall
portion 72 into the bottom surface opening of the body
unit 10 and screwing it in place. In the present
embodiment, the air suction part 73 is disposed on the
first air suction chamber Si side, and at the time of
this assembly, as indicated by arrows in Figure 6, the
air conduction path L is formed to guide part of air
sucked from the air suction part 73 to between the
bottom surface 40R of the drain pan 40 (see Figure 3 and
Figure 9) and the rear surface 70R of the decorative
panel 70 into the second air suction chamber S2.
[0074]
In the air conduction path L, the air proceeding
towards the second air suction chamber S2 passes between
the ducts 51, 51, but in order to ensure a greater
amount of airflow, recesses 46 are formed in the bottom
surface 40R of the drain pan 40 corresponding to the
ducts 51, 51 to expand the cross-sectional area of the
airflow path L, as illustrated in Figure 9.
[0075]
In this indoor unit 1, as illustrated in Figure 4 and Figure 6 above, the raised part 740 including a fixed blowing part 75 and a movable blowing part 77 is provided on a decorative panel 70, and the first air blowing port 754 of the fixed blowing part 75 and the second air blowing port 783 of the movable blowing part
77 are formed on the side surface of the raised part
740, so that an air conduction path L larger in vertical
width may be ensured between the drain pan 40 and the
decorative panel 70.
[0076]
Referring to Figure 4 and Figure 6 above, as viewed
from inside the air-conditioning room R, the air suction
part 73 is disposed above the raised part 740 and
included within the panel surface 70S of the decorative
panel 70, so that the air suction part 73 is
positionally close to the air conduction path L, and a
portion of the air sucked from the air suction part 73
is easily directed to the second air suction chamber S2
side via the air conduction path L.
[0077]
<Assembly>
Next, the assembly of the indoor unit 1 will be
described. The body unit 10 is first placed on an
assembly table with the top panel 111 side of the outer
body 11 down, and the heat insulating material 13 is
fitted inside the outer body 11. The pre-assembled heat
exchanger 20 (a heat exchanger coupling the front heat
exchanger section 20L and the rear heat exchanger section 20R with a coupling plate 21) is then fixed to the top panel 111 via a predetermined mounting fixture, not illustrated, with a gas coupling pipe and a liquid coupling pipe (both not illustrated) of the pre assembled heat exchanger 20 drawn out of the side plate
113. The pre-assembled fan unit 30 is then placed in the
blower chamber F in the heat exchanger 20 and fixed to
the top panel 111 via the motor mount 361 and the fan
fixing section 341.
[0078]
Next, the flume section 45 on the drain sheet 42
side of the drain pan 40 is fitted into the bottom
surface of the outer body 11 in line with the lower ends
of the heat exchanger sections 20L, 20R. At this time,
the air-blowing sections 343 of the fan casings 34 are
fitted to the ventilation holes 43 of the drain pan 40.
[0079]
The body unit 10 thus assembled and the decorative
panels 70 are packed separately and transported to the
installation site. The body unit 10 is installed in the
attic T2 by being suspended with a plurality of hanging
bolts previously embedded in the attic T2.
[0080]
Then, the decorative panel 70 is installed from the
air-conditioning room R side. At this time, the ducts 51
of the partitioning plate unit 50 are connected to the
air-blowing sections 343 of the fan casings 34 through
the ventilation holes 43 of the drain pan 40. Although not illustrated, the indoor unit 1 can be operated by connecting refrigerant piping, a power line and signal lines to the outdoor unit.
[0081]
<Operation>
When the indoor unit 1 is stopped, as illustrated
in Figure 11, the rotating units 78L, 78R of the movable
blowing parts 77L, 77R have the second air blowing ports
783 facing in the same direction (on the long side 70a
side) as the first air blowing port 754 of the fixed
blowing part 75, as an initial position (first
position), and the first air blowing port 754 and the
second air blowing port 783 are both closed by the
vertical air vent deflectors 782 and 753.
[0082]
A compressor and a fan motor of the outdoor unit
(both not illustrated) and the fan motor 36 of the
indoor unit 1 are then started to operate by a command
of the remote controller (not illustrated) by the user
or by the command of the air conditioning system.
[0083]
In the indoor unit 1, the blower fan 31 is rotated
by operation of the fan motor 36. The rotation of the
blower fan 31 blows out the air in the air-blowing
section 343 of the blower fan 31, resulting in a
negative pressure in the blower chamber F, so that the
air K in the air-conditioning room R is drawn in from
the air suction part 73 provided in the decorative panel
70.
[0084]
Referring to Figure 6, the air K drawn in from the
air suction part 73 flows into the first air suction
chamber Si and also flows into the second air suction
chamber S2 through the air conduction path L. The air in
the first air suction chamber S1 passes through the rear
heat exchanger section 20R, is heat exchanged with the
refrigerant, and enters the blower chamber F. Similarly,
the air in the second air suction chamber S2 passes
through the front heat exchanger section 20L, is heat
exchanged with the refrigerant, and enters the blower
chamber F.
[0085]
The air thus conditioned is delivered by rotation
of the blower fans 31 from the air-blowing sections 343
of the fan casings 34 to the fixed blowing part 75 and
the movable blowing parts 77 of the decorative panel 70
via the ducts 51.
[0086]
The conditioned air delivered to the fixed blowing
part 75 is blown from the first air blowing port 754
toward the direction guided by the horizontal air vent
deflectors 752 and the vertical air vent deflector 753.
The conditioned air delivered to the movable blowing
part 77 is blown out in the direction of rotation of the
rotating unit 78 and in the direction guided by the
vertical air vent deflector 782.
[00871
Since the rotation of the rotating units 78L, 78R
is individually controllable, the conditioned air can be
supplied in many directions according to the user's
requirements, except in the direction of the long side
b on the rear side, where the air suction part 73 is
located.
[0088]
<Support Structure of Partitioning Plate Unit>
The indoor unit 1 of the present embodiment has a
partitioning plate unit 50 illustrated in Figure 14 on
the rear surface 70R of the decorative panel 70, as
previously described. The partitioning plate unit 50 is
mounted on the air blowing part 74 of the decorative
panel 70, but is large and heavy because of the fixed
blowing part 75, the movable blowing part 77, and the
like provided thereon.
[0089]
The frame 721 described in Figure 10 is provided on
the rear side of the decorative panel 70 with the
intention of preventing damage due to impact, such as
when dropped. However, here, as illustrated in Figure
17, a frame 760 is provided to support the partitioning
plate unit 50 on the rear surface 70R side of the
decorative panel 70.
[0090]
As illustrated in Figure 17(a), the frame 760
includes, as a main frame, long side frames 761 and 762 disposed respectively along the long sides 70a and 70b of the decorative panel 70, and short side frames 763 and 764 disposed respectively along the short sides 70c and 70d of the decorative panel 70 between both ends of the long side frames 761 and 762.
[0091]
Two beams 765, 766 are bridged between the short
side frame 763 and the short side frame 764. The long
side frames 761 and 762, short side frames 763 and 764
and beams 765 and 766 are preferably made of sheet
metal.
[0092]
As illustrated in Figure 17(b), the partitioning
plate unit 50 is mounted on the decorative panel 70 so
that the fixed blowing part 75 and the movable blowing
part 77 thereof protrude to the air-conditioning room R
side, and the opening 74a, which corresponds to the air
blowing part 74, is formed along the long side 70a of
the decorative panel 70.
[0093]
The beams 765 and 766 are disposed respectively on
the side of the long side of the opening 74a where the
air blowing part 74 is provided, and the partitioning
plate unit 50 is supported by the beams 765 and 766 on
the rear surface 70R side of the decorative panel 70.
[0094]
The partitioning plate unit 50 is mounted on the
rear surface 70R of the decorative panel 70 with its three edges, a front edge 50a, a right side edge 50b and a left side edge 50c, surrounded by the long side frame
761 at the front and the short side frames 763 and 764
on the left and right, respectively, and fitted into the
frame 760. As a result, the beams 765 and 766 are
sandwiched between the partitioning plate unit 50 and
the rear surface 70R of the decorative panel 70.
[00951
In this configuration, the partitioning plate unit
can be mounted on the rear surface of the decorative
panel 70 without causing deformation or distortion to
the decorative panel 70.
[00961
<Configuration of Movable Blowing Part>
As illustrated in Figure 18, the fan unit 30 and
the rotating unit 78 (78L, 78R) are connected via the
partitioning plate unit 50 so that air can be
circulated, but as illustrated in the exploded
perspective view in Figure 19, the partitioning plate
unit 50 is provided with drive means 600 to rotate the
rotating unit 78. The drive means 600 is provided in
each of the rotating units 78L and 78R, but the
configuration is the same.
[0097]
Referring in conjunction with Figure 20 and Figure
21, the drive means 600 is provided with a annular
rotating ring 610 that is integrally coupled to an upper
part of the rotating unit 78 and a motor unit 650 that rotates the rotating ring 610.
[00981
The rotating ring 610 has a cylindrical part 611,
and on the outer periphery of the cylindrical part 611,
rack teeth 613 are formed along the arcuate surface of
the outer periphery. The rack teeth 613 may be formed
over the entire circumference of the cylindrical part
611 but need only be formed at least in a range that can
realize the rotational range (the above-described range
between the first position and the second position) of
the rotating unit 78.
[00991
A flange 614 is formed outward in a radial
direction concentrically around the outer periphery of
the cylindrical part 611. The flange 614 is hereafter
referred to as an outer flange. In the interior of the
cylindrical part 611, a vent hole 612 having a square
shape is formed to be communicated with the duct 51
(51c, 51d) for the movable blowing part.
[0100]
As illustrated in Figure 22, the motor unit 650 has
a motor (preferably a stepper motor) 651 capable of
forward and reverse rotation, a pinion gear 652 mounted
on an output shaft 651a thereof, and a mount 653 for
mounting, and the pinion gear 652 is mounted on a
predetermined portion of a duct cover 630, which will be
described later, so as to engage the rack teeth 613 of
the rotating ring 610.
[0101]
Referring to Figure 19 and Figure 23, circular
openings 520 are formed on both sides of the
partitioning plate unit 50 into which the rotating rings
610 are fitted. On the inner periphery of the opening
520, a flange 521 is formed inward in a radial direction
in a concentric manner. The flange 521 is hereafter
referred to as an inner flange.
[0102]
When the rotating ring 610 is fitted into the
opening 520, the outer flange 614 is positioned on the
inner flange 521, and the outer flange 614 slides on the
inner flange 521 as the rotating ring 610 rotates. The
outer flange 614 and the inner flange 521 function as a
kind of thrust bearing that bears an axial load of the
rotating body.
[0103]
After the rotating ring 610 is fitted into the
opening 520, the duct cover 630 is covered to hold the
rotating ring 610 down. The duct cover 630 is screwed to
the partitioning plate unit 50.
[0104]
As described above, the ducts 51 (51c, 51d), that
are connected to the ventilation holes 43 formed in the
drain pan 40, are formed in the duct cover 630. The duct
cover 630 is also formed with a base part 631 on which
the motor unit 650 is mounted.
[0105]
As illustrated in Figure 27, the rear surface 630R
of the duct cover 630 has an annular guide groove 635
formed therein and the cylindrical part 611 of the
rotating ring 610 is fitted in the guide groove 635. The
circular portion surrounded by the guide groove 635 on
the rear surface 630R of the duct cover 630 is an inner
bottom surface 633 at a height slightly lower than an
edge 630a of the duct cover 630 in Figure 27 (a height
slightly higher than the edge 630a in the cross
sectional view in Figure 28).
[0106]
The duct 51 (51c, 51d) is square in shape, but has
ventilation area (cross-sectional surface area)
progressively widened from the upper surface of the duct
cover 630 to the inner bottom surface 633, and widened
at the inner bottom surface 633 to an extent that the
apex (corner) touches the annular guide groove 635, and
the rotating ring 610 rotates along a circumscribed
circle of the duct 51 on the inner bottom surface 633
side.
[0107]
In an airflow path from the fan unit 30 to the
second air blowing port 783 of the rotating unit 78, the
airflow pressure changes in a rotating portion of the
rotating unit 78. However, by rotating the rotating ring
610 along the circumscribed circle of the duct 51 on the
inner bottom surface 633 side as described above, the
airflow path is not even partially blocked, so that the pressure change in the rotating portion of the rotating unit 78 can be reduced. Also, the structure of the coupling part (connecting part) between the rotating ring 610 and the duct 51 can be reduced in size.
[0108]
The rotating ring 610 does not have to touch the
four apexes of the duct 51, for example, the rotating
ring 610 can be made into a large circle that touches
the two adjacent apexes of the duct 51 on the inner
bottom surface 633 side, and can be rotated without
reducing the ventilation area of the duct 51 (without
blocking the duct in any part).
[0109]
Referring again to Figure 19, according to the
present embodiment, the duct cover 630 is further
covered with an exterior cover 640. This exterior cover
640 is one size larger than the duct cover 630, but may
be omitted in some cases.
[0110]
When changing the air blowing direction of the
rotating unit 78, the rotating ring 610 is rotated in
the opening 520 by the motor 651. It is necessary to
prevent rattling of the rotating ring 610 from occurring
during this rotation. The rattling can be horizontal
direction (radial direction) rattling or vertical
direction (axial direction) rattling.
[0111]
First, a stable seat 523, illustrated in Figure 24, is used to prevent rattling in the horizontal direction
(radial direction). The stable seat 523 has a seat
portion 524 having a flat shape and a side wall portion
525 that rises almost vertically from one end of the
seat portion 524, and an elastically deformable mounting
leg 526 with a slot at a bottom of the seat portion 524.
The side wall portion 525 is formed with an arcuate
surface 525a along the outer peripheral edge 614a of the
outer flange 614.
[0112]
The stable seats 523 are preferably formed of a low
friction resin such as polyacetal (POM) and are provided
at four locations at 90- intervals at the base of the
inner flange 521 on the outer peripheral side as
illustrated in Figure 23 in this example. As another
example, provision at three locations at 120- intervals
is also applicable. If the length of the stable seat 523
(the length along the circumferential direction of the
inner flange 521) is long, provision at two locations is
applicable.
[0113]
The stable seat 523 is mounted on the inner flange
521 along the outer peripheral edge 614a of the outer
flange 614 of the rotating ring 610. To attach the
stable seat 523, however, as illustrated in Figure 25,
an engagement hole 522 may be drilled in the inner
flange 521, and the mounting leg 526 may be pushed into
the engagement hole 522 while being elastically deformed.
[01141
Thus, by providing stable seats 523 on the inner
flange 521 side in contact with the outer peripheral
edge 614a of the outer flange 614 at a plurality of
locations, the horizontal direction (radial direction)
rattling of the rotating ring 610 can be prevented.
[0115]
Next, to prevent vertical direction (axial
direction) rattling, a protrusion 616 is provided in the
interior of the cylindrical body 611 of the rotating
ring 610, as illustrated in Figure 26. As described
above, the vent holes 612 formed in the cylindrical part
611 are square in shape, so that there is an inner wall
617 in the cylindrical part 611 that forms each side of
the square. A protrusion 616 is erected on the inner
wall 617.
[0116]
The position of the protrusion 616 is at a position
where it can contact the inner bottom surface 633 on the
rear surface 630R of the duct cover 630 illustrated in
Figure 27. In this example, the inner bottom surface 633
is located along three sides of the square openings of
the duct 51, while the protrusions 616 are located at
four locations at 90- intervals, as illustrated in Figure
21.
[0117]
In this way, since the three protrusions 616 are always on the provisional surface 633 regardless of which rotational position the rotating ring 610 is in, the protrusion 616 will not deviate from the inner bottom surface 633, but in order to reduce sliding frictional resistance, the smaller contact area per protrusion 616 to the inner bottom surface 633 preferably should be as small as possible.
[0118]
The protruding height of the protrusion 616 is the
height at which the tip of the protrusion 616 contacts
the inner bottom surface 633 when the rotating ring 610
is covered by the duct cover 630, as illustrated in
Figure 28.
[0119]
Thus, by providing a protrusion 616 inside the
cylindrical body 611 of the rotating ring 610 that
contacts the inner bottom surface 633 on the rear
surface 630R of the duct cover 630, the vertical
direction (axial direction) rattling of the rotating
ring 610 can be prevented.
[0120]
As described above, the rotating ring 610 is
rotated in the opening 520 of the partitioning plate
unit 50 by the motor 651. However, it is necessary to
take measures to prevent wind leakage from the gap
between the inner flange 521 on the opening 520 side and
the outer flange 614 on the rotating ring 610 side, and
to prevent dew condensation, especially during cooling operation.
[01211
Therefore, in this example, as illustrated in
Figure 29 and Figure 30, a sealing material 618 is
provided on the inner surface of the outer flange 614
(on the surface side facing the inner flange 521). The
sealing material 618 need only have moderate elasticity
and heat insulation properties. However, because of
being rubbed against the inner flange 521 as the
rotating ring 610 rotates, a tape or sheet of fibers
made of polyacetal (often short fibers), for example,
planted on a tape-shaped or sheet-shaped base material
is preferably employed as a low friction fiber.
[0122]
In this configuration, a clearance between the
inner flange 521 and the outer flange 614 can be set
substantially on the order of 0 to 0.5 mm to prevent
wind leakage. Also, the structure free from dew
condensation is achieved. The sliding frictional
resistance associated with the rotation of the rotating
ring 610 can also be reduced.
[0123]
As illustrated in Figure 29, a boss 619, which is
used to couple the rotating unit 78, is provided at a
plurality of locations on the rear surface 61CR side of
the rotating ring 610.
[0124]
<Composition of Fan Unit>
In the fan unit 30 described in the preceding
Figure 3, the blower fan 31 is fixed to the top panel
111 of the outer body 11 via the fan mount 311 in the
fan casing 34, and the fan motor 36 is also fixed to the
top panel 111 of the outer body 11 via its motor mount
361. This requires a large number of parts to be used
and a high degree of accuracy in positioning the blower
fan 31 and fan motor 36.
[0125]
Figure 31 and Figure 32 are a fan unit 30A with
improvement in such points. In the embodiment here also,
a sirocco fan is preferably used as the blower fan 31,
and the fan motor 36 is used as-is without any
particular change required.
[0126]
In this fan unit 30A, the fan casing 34 of the
blower fan 31 is divided into two compartments, a lower
casing 371 and an upper casing 372, both of which are
made of synthetic resin material, and the lower casing
371 includes a motor mount 373 of the fan motor 36
formed integrally.
[0127]
A bearing part that supports the blower fan 31 of
the lower casing 371 and a bearing part that supports
the fan motor 36 of the motor mount 373 (both
illustrations are omitted) are pre-centered when the
motor mount 373 is integrally molded in the lower casing
371. The upper casing 372 may be secured to the lower casing 371 with a locking device 374 such as a snapping lock, for example.
[0128]
With the fan unit 30A, the blower fan 31 and the
fan motor 36 may be coupled in advance, and by opening
the upper casing 372, the blower fan 31 may be housed in
the lower casing 371, and the fan motor 36 may be set on
the motor mount 373, so that positioning (centering) of
the blower fan 31 and the fan motor 36 is easily
performed.
[0129]
Fixation of the outer body 11 to the top panel 111
does not have to be performed separately for the blower
fan 31 and the fan motor 36, and all that is needed is
to fix only the mounting part (not illustrated) provided
on the lower casing 371 to the top panel 111.
[0130]
Since this fan unit 30A is unitized by the smallest
unit, it is only necessary to select the number of units
to be used according to the blown out air volume and
size of the air blowing part or the like required by the
air conditioner, and there is no need to design a fan
unit (blower) dedicated to each model with a different
air volume. With this fan unit 30A, the air volume can
be adjusted individually, thus enabling more detailed
air conditioning operation.
Reference Signs List
[01311
1: Indoor unit
10: body unit
11: outer body
111: top panel
112, 113: side plate
12: mounting bracket
13: heat insulating material
20: heat exchanger
20L: front heat exchanger section
20R: rear heat exchanger section
21: coupling plate
30: fan unit
31: blower fan
32: impeller
33: airflow path
34: fan casing
343: air-blowing section
35: rotating shaft
36: fan motor
371: lower casing
372: upper casing
373: motor mount
40: drain pan
43: ventilation hole
45: flume section
50: partitioning plate unit
51 (5la-51d): duct
520: opening
521: inner flange
523: stable seat
600: drive means
610: rotating ring
611: cylindrical part
612: vent hole
613: rack teeth
614: outer flange
616: protrusion
618: sealing material
630: duct cover
633: inner bottom surface
635: guide groove
: decorative panel
a, 70b: long side
c, 70d: short side
71: panel part
71a: panel main body
71b: side panel
711: wall
712: slope surface
72: side wall portion
721, 760: frame
722, 765, 766: beam
73: air suction part
74: air blowing part
740: raised part
; fixed blowing part
751: central blowing unit
754: first air blowing port
77 (77L, 77R): movable blowing part
78 (78L, 78R): rotating unit
783: second air blowing port
R: air-conditioning room
Ti: ceiling
T2: attic
F: blower chamber
Si, S2: air suction chamber
L: air conduction path
Claims (3)
- Claims[Claim 1]A ceiling-embedded air conditioner including:a box-type body unit including a blower and a heatexchanger inside and disposed in an attic of an airconditioning room; and a decorative panel mounted on abottom surface of the body unit along a ceiling surfaceof the air-conditioning room, the decorative panelincluding an air suction part and an air blowing part,whereinthe air blowing part comprises a movable blowingpart on the decorative panel side, the movable blowingpart including a rotating unit that rotates around anaxis that is normal to a virtual plane on a rear surfaceside of the decorative panel that is parallel to abottom surface of the body unit to blow conditioned airdelivered by the blower along a panel surface of thedecorative panel.
- [Claim 2]The ceiling-embedded air conditioner according toclaim 1, wherein the rotating unit has a truncated coneshape protruding from the panel surface of thedecorative panel to the air-conditioning room side, andincludes an air blowing port that blows conditioned airdelivered by the blower along the panel surface on aside surface of the truncated cone.
- [Claim 3]The ceiling-embedded air conditioner according to claim 1 or 2, wherein the air blowing part further includes on the decorative panel side a fixed blowing part that blows the conditioned air delivered by the blower toward one specified side of the decorative panel, and the movable blowing part is disposed adjacent to the fixed blowing part.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2018104520A JP6756988B2 (en) | 2018-05-31 | 2018-05-31 | Ceiling embedded air conditioner |
JP2018-104520 | 2018-05-31 | ||
PCT/JP2019/010747 WO2019230128A1 (en) | 2018-05-31 | 2019-03-15 | Ceiling-embedded air conditioner |
Publications (1)
Publication Number | Publication Date |
---|---|
AU2019278063A1 true AU2019278063A1 (en) | 2021-01-07 |
Family
ID=68697536
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
AU2019278063A Pending AU2019278063A1 (en) | 2018-05-31 | 2019-03-15 | Ceiling-embedded air conditioner |
Country Status (6)
Country | Link |
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US (1) | US20210207818A1 (en) |
EP (1) | EP3805659A4 (en) |
JP (1) | JP6756988B2 (en) |
CN (1) | CN112204316B (en) |
AU (1) | AU2019278063A1 (en) |
WO (1) | WO2019230128A1 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN214415871U (en) * | 2020-12-09 | 2021-10-19 | 深圳市安拓浦科技有限公司 | Wall-mounted air purifier |
CN114017649A (en) * | 2021-11-09 | 2022-02-08 | 深圳市华远高科科技有限公司 | Embedded display screen with pull safeguard function |
CN114183823B (en) * | 2021-12-10 | 2022-12-16 | 珠海格力电器股份有限公司 | Air conditioner |
Family Cites Families (16)
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US2000112A (en) * | 1933-03-30 | 1935-05-07 | Wheller Harry Stewart | Heater |
US2741971A (en) * | 1952-06-28 | 1956-04-17 | L J Wing Mfg Co | Rotating air distributing outlets |
US2923224A (en) * | 1956-11-20 | 1960-02-02 | Thermotank Inc | Air distributor |
JPH0794922B2 (en) * | 1987-06-04 | 1995-10-11 | 三洋電機株式会社 | Wind direction change device |
AU602964B2 (en) * | 1988-03-22 | 1990-11-01 | Winfield Leroy Kelley | A dimpled air distribution device |
JP2546491Y2 (en) * | 1993-04-21 | 1997-09-03 | 株式会社メイコー商事 | Air purifier provided with a rotary vent having an opening serving as a suction or discharge port |
JP2000213767A (en) | 1999-01-27 | 2000-08-02 | Matsushita Electric Ind Co Ltd | Air conditioning unit |
JP3792226B2 (en) * | 2003-11-28 | 2006-07-05 | シャープ株式会社 | Air conditioner |
JP2005331186A (en) * | 2004-05-20 | 2005-12-02 | Fujitsu General Ltd | Air conditioner |
CN101713572B (en) * | 2008-09-30 | 2013-11-13 | 日立空调·家用电器株式会社 | Air conditioner |
JP5351111B2 (en) * | 2010-08-17 | 2013-11-27 | 木村工機株式会社 | Invitation outlet |
KR101039768B1 (en) * | 2010-10-16 | 2011-06-09 | 허만승 | Hopper sets and swing grill for air flow changing into ceiling mounted type 4 way heating and cooling indoor unit |
KR101218568B1 (en) * | 2012-08-08 | 2013-01-04 | (주)대성테크윈 | Air conditioning apparatus in workplace |
US10365007B2 (en) * | 2014-09-30 | 2019-07-30 | Fujitsu General Limited | Ceiling-embedded air conditioner |
JP2017106678A (en) * | 2015-12-10 | 2017-06-15 | 国立大学法人 奈良先端科学技術大学院大学 | Air conditioner |
KR102527655B1 (en) * | 2017-11-28 | 2023-05-03 | 삼성전자주식회사 | Air Conditioner |
-
2018
- 2018-05-31 JP JP2018104520A patent/JP6756988B2/en active Active
-
2019
- 2019-03-15 US US17/059,715 patent/US20210207818A1/en active Pending
- 2019-03-15 WO PCT/JP2019/010747 patent/WO2019230128A1/en unknown
- 2019-03-15 AU AU2019278063A patent/AU2019278063A1/en active Pending
- 2019-03-15 EP EP19811986.9A patent/EP3805659A4/en active Pending
- 2019-03-15 CN CN201980036247.XA patent/CN112204316B/en active Active
Also Published As
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EP3805659A1 (en) | 2021-04-14 |
CN112204316A (en) | 2021-01-08 |
JP6756988B2 (en) | 2020-09-16 |
CN112204316B (en) | 2022-07-08 |
WO2019230128A1 (en) | 2019-12-05 |
EP3805659A4 (en) | 2022-03-02 |
US20210207818A1 (en) | 2021-07-08 |
JP2019211099A (en) | 2019-12-12 |
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