AU2018259337B2 - Indoor unit for air conditioning device - Google Patents

Indoor unit for air conditioning device Download PDF

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Publication number
AU2018259337B2
AU2018259337B2 AU2018259337A AU2018259337A AU2018259337B2 AU 2018259337 B2 AU2018259337 B2 AU 2018259337B2 AU 2018259337 A AU2018259337 A AU 2018259337A AU 2018259337 A AU2018259337 A AU 2018259337A AU 2018259337 B2 AU2018259337 B2 AU 2018259337B2
Authority
AU
Australia
Prior art keywords
base plate
front panel
fixing
claw
recessed portion
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.)
Active
Application number
AU2018259337A
Other versions
AU2018259337A1 (en
Inventor
Masashi Takano
Naomichi UNO
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Heavy Industries Thermal Systems Ltd
Original Assignee
Mitsubishi Heavy Industries Thermal Systems Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Heavy Industries Thermal Systems Ltd filed Critical Mitsubishi Heavy Industries Thermal Systems Ltd
Publication of AU2018259337A1 publication Critical patent/AU2018259337A1/en
Application granted granted Critical
Publication of AU2018259337B2 publication Critical patent/AU2018259337B2/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F24F1/0043—Indoor units, e.g. fan coil units characterised by mounting arrangements
    • F24F1/0057—Indoor units, e.g. fan coil units characterised by mounting arrangements mounted in or on a wall
    • 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
    • F24F13/32—Supports for air-conditioning, air-humidification or ventilation units
    • 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

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)

Abstract

The present invention is provided with: a base plate (3) to be fixed to an indoor wall surface; a front panel to be fixed to the base plate (3); and a detachable fixing unit (7) that is provided between the top part of the base plate (3) and the top part of the front panel. The fixing unit (7) is provided with: a recess (8) that is provided in the base plate (3), is depressed downward, and in which an insertion hole is formed; and claw parts (9) provided in the front panel and inserted into the insertion hole to advance into and engage with the recess (8). The recess (8) has a bottom surface (8a) that can be felt between the claw parts (9) inserted in the recess (8).

Description

DESCRIPTION
Title of Invention
INDOOR UNIT FOR AIR CONDITIONING DEVICE
Technical Field
[0001]
The present invention relates to an indoor unit for
an air conditioning device that has a structure in which a
front panel is fixed to a base plate.
Background Art
[0002]
A reference herein to a patent document or any
other matter identified as prior art, is not to be taken
as an admission that the document or other matter was
known or that the information it contains was part of the
common general knowledge as at the priority date of any
of the claims.
[0002a]
A case of an indoor unit for an air conditioning
device is detachable due to fixing operation and
maintenance operation. For example, a configuration where
a front panel of a main body case is attached or detached
is disclosed in PTL 1.
Citation List
Patent Literature
[00031
[PTL 1] Japanese Unexamined Patent Application
Publication No. 2007-147118
Summary of Invention
[0004]
- la -
However, unlike the configuration of PTL 1, in a
case of fixing a base plate, which is fixed to an indoor
wall surface, to a front panel, a fixing portion provided
on upper portions of the base plate and the front panel is
used. A recessed portion that is provided in the base
plate, is sunken downwards, and has an insertion hole
formed therein and a claw portion that is provided on the
front panel and engages with the recessed portion by being
inserted into the insertion hole and advanced into the
recessed portion are used as the fixing portion.
Since the fixing portion exists on the upper
portions of the base plate and the front panel, visibility
is poor, and an operator needs to perform operation by
fumbling. For this reason, there is a possibility that
the claw portion is mistakenly removed without knowing
that it is in a fixed state where the claw portion of the
fixing portion is inserted in the recessed portion or a
released state where the claw portion is not inserted in
the recessed portion, and the front panel falls at an
unexpected timing.
[00051
In addition, in some cases, out of a plurality of
fixing portions, a fixing portion of which a claw portion
is inserted and fixed to a recessed portion, and a fixing
portion, of which a claw portion is not inserted in a recessed portion and which is set as a dummy without being used as a fixing portion, are provided according to a model of an indoor unit. For example, in a case where a front panel is a heavy model, operation, in which a large number of fixing portions of which claw portions are inserted and fixed to recessed portions, compared to a case where the front panel is a light model, is performed
(that is, the light model has a large number of fixing
portions used as dummies). In such a case, it is required
for an operator to reliably recognize whether or not the
claw portions are inserted in the recessed portions of the
fixing portions by touching.
[00061
The present invention is devised in view of such
circumstances. It is desirable to provide an indoor unit
for an air conditioning device that can reliably recognize
the existence of a claw portion even in a case where a
fixing portion that is attached or detached to or from a
base plate and a front panel is provided on upper portions
of a base plate and a front panel.
[0007]
According to one form of the invention, there is
provided an indoor unit for an air conditioning device,
comprising: a base plate fixed to an indoor wall surface,
a front panel fixed to the base plate; and a detachable fixing portion that is provided between an upper portion of the base plate and an upper portion of the front panel, wherein the fixing portion includes a recessed portion that is provided in any one of the base plate and the front panel, is sunken downwards, and has an insertion hole formed therein, and a claw portion that is provided on the other one of the base plate and the front panel and engages with the recessed portion by being inserted into the insertion hole and being advanced into the recessed portion, a gap having a dimension that allows an operator to touch by a finger is provided between a side of the claw portion inserted in the recessed portion and a side portion of the recessed portion, in a state where the front panel is attached to the base plate, and the recessed portion has a bottom surface that is capable of being touched by the finger through the gap.
[00081
By inserting and engaging the claw portion with the
insertion hole provided in the recessed portion of the
fixing portion, the base plate is detachably fixed to the
front panel. Since the bottom surface is provided in the
recessed portion such that an operator can touch between
the inserted claw portion and the bottom surface by a
finger, the operator can recognize a step between the
bottom surface and the claw portion by touching, and can check the existence of the claw portion. Therefore, even in a case where the fixing portion that attaches or detaches the base plate to or from the front panel is provided on the upper portions of the base plate and the front panel and thus it is difficult for the operator to see the fixing portion, the existence of the claw portion can be reliably recognized.
[00091
According to another form of the invention, there is
provided an indoor unit for an air conditioning device
comprising: a base plate fixed to an indoor wall surface,
a front panel fixed to the base plate; and a detachable
fixing portion that is provided between an upper portion
of the base plate and an upper portion of the front panel,
wherein the fixing portion includes a recessed portion
that is provided in any one of the base plate and the
front panel, is sunken downwards, and has an insertion
hole formed therein, and a claw portion that is provided
on the other one of the base plate and the front panel and
engages with the recessed portion by being inserted into
the insertion hole and being advanced into the recessed
portion, a gap having a dimension that allows an operator
to touch by a finger is provided between a side of the
claw portion inserted in the recessed portion and a side portion of the recessed portion, in a state where the front panel is attached to the base plate, and a plurality of recesses or protruding portions are provided on an upper surface of the claw portion.
[0010]
By inserting and engaging the claw portion with the
- 5a - insertion hole provided in the recessed portion of the fixing portion, the base plate is detachably fixed to the front panel. Since the recess or the protruding portion is provided on the upper surface of the claw portion, an operator can recognize a step of the recess or the protruding portion by touching, and the existence of the claw portion can be checked. Therefore, even in a case where the fixing portion that attaches or detaches the base plate to or from the front panel is provided on the upper portions of the base plate and the front panel and thus it is difficult for the operator to see the fixing portion, the existence of the claw portion can be reliably recognized.
[0011]
In the indoor unit for an air conditioning device
according to the aspect of the present invention, a
plurality of the fixing portions are provided. The claw
portion is disposed in the recessed portion of at least
one of the plurality of fixing portions. The claw portion
is not disposed in the recessed portion of the other
fixing portion.
[0012]
At least one of the plurality of fixing portions has
the claw portion disposed in the recessed portion, and the
other fixing portion does not have the claw portion disposed in the recessed portion. Therefore, a combination of the claw portion and the recessed portion can be changed according to a model of an indoor unit.
For example, in a case of a heavy model, a large number of
the claw portions are engaged with the recessed portions
compared to a case of a light model. Since an operator
can differentiate the fixing portion where the claw
portion exists from the fixing portion where the claw
portion does not exist even in such a case, the operator
does not make a mistake in operation even when a model
differs.
[00131
Since the bottom surface is provided in the recessed
portion such that the bottom surface can be touched
between the claw portion inserted in the recessed portion
and the recessed portion, the existence of the claw
portion can be reliably recognized even in a case where
the fixing portion that attaches or detaches the base
plate to or from the front panel is provided on the upper
portions of the base plate and the front panel.
[0013a]
Where any or all of the terms "comprise",
"comprises", "comprised" or "comprising" are used in this
specification (including the claims) they are to be
interpreted as specifying the presence of the stated features, integers, steps or components, but not precluding the presence of one or more other features, integers, steps or components.
Brief Description of Drawings
[00141
Fig. 1 is a perspective view illustrating an indoor
unit for an air conditioning device according to an
- 7a - embodiment of the present invention.
Fig. 2 is a plan view of the indoor unit of Fig. 1
seen from above.
Fig. 3 is a partially enlarged view illustrating a
state where a claw portion is inserted in a recessed
portion.
Fig. 4 is a partially enlarged view illustrating a
state where the claw portion is not inserted in the
recessed portion.
Fig. 5 is a plan view illustrating the claw portion.
Description of Embodiments
[0015]
Hereinafter, an embodiment according to the present
invention will be described with reference to the drawings.
Fig. 1 illustrates an appearance of an indoor unit 1
of an air conditioning device. The indoor unit 1 is a
wall-hanging type, sucks indoor air from above, and blows
air after air conditioning indoors from below. The indoor
unit 1 is connected to an outdoor unit (not illustrated),
receives supply of a refrigerant compressed by the outdoor
unit, and adjusts indoor air so as to have a predetermined
temperature by means of an indoor heat exchanger provided
inside the indoor unit 1.
[0016]
The indoor unit 1 includes a base plate 3 fixed to
an indoor wall surface and a front panel 5 that is
positioned in front of the base plate 3 and is detachably
fixed to the base plate 3.
[0017]
Fig. 2 is a plan view of the indoor unit 1 seen from
above. In Fig. 2, an indoor wall surface side is the back.
A plurality of fixing portions 7 are provided on a wall
surface side of the indoor unit 1 along a width direction
of the indoor unit 1 (a right-and-left direction in Fig.
2). In the embodiment, five fixing portions 7, including
a first fixing portion 7a, a second fixing portion 7b, a
third fixing portion 7c, a fourth fixing portion 7d, and a
fifth fixing portion 7e, are provided from the left in Fig.
2. It is evident that the number of the fixing portions 7
is not limited thereto, and there may be six or more
fixing portions.
[0018]
When the indoor unit 1 is seen from the front, the
fixing portions 7 are positioned on the back side and an
upper side of the indoor unit 1. Therefore, the fixing
portions 7 are positioned at positions having poor
visibility for an operator accessing from below. For this
reason, the operator accesses the fixing portions 7 by
fumbling.
[0019]
As illustrated in Fig. 3, each of the fixing
portions 7 includes a recessed portion 8 provided on an
upper side of the base plate 3 and a claw portion 9
provided on the front panel 5. Fig. 4 illustrates the
recessed portion 8 in which the claw portion 9 does not
exist, and Fig. 5 illustrates only the claw portion 9.
[0020]
A bottom surface 8a sunken downwards from an upper
surface of the base plate 3 is formed in the recessed
portion 8. In the middle in a width direction of the
bottom surface 8a, there is a flat surface. An insertion
hole 8b into which the claw portion 9 can be inserted is
provided on a front side of the recessed portion 8.
[0021]
The claw portion 9 is provided to protrude from an
end surface of an upper portion of the front panel 5 on a
base plate 3 side toward the base plate 3. In plan view
as in Fig. 3, the claw portion 9 has a substantially
rectangular shape of which a width is large. When
attached, the claw portion 9 is disposed over the flat
surface of the bottom surface 8a of the recessed portion 8.
A latching portion (not illustrated) is provided on a
lower surface of the claw portion 9, and engages with a
latched portion on the base plate 3 side. This engagement is not released by pressing an upper surface of the claw portion 9.
[0022]
A gap 10 having a dimension A that allows an
operator to put a finger inside and touch is provided
between a side of the claw portion 9 and a side portion of
the recessed portion 8. The dimension A is set to 2 mm to
mm. The gap 10 allows the operator to recognize a step
between the bottom surface 8a of the recessed portion 8
and the claw portion 9 by touching. The gap 10 may be
provided on each of both sides of the claw portion 9 as in
Fig. 3, or may be provided on only one side of the claw
portion 9.
[0023]
Two protruding portions 9a arranged in the width
direction are provided on the upper surface of the claw
portion 9. Top surfaces of the protruding portions 9a are
flat surfaces. The protruding portions 9a each have a
shape that allows an operator to recognize a step by
touching. The number of the protruding portions 9a may be
three or more, or may be only one. In addition, sunken
recesses may be provided instead of the protruding
portions 9a.
[0024]
As illustrated in Fig. 2, the claw portion 9 is not inserted and fixed to all of the recessed portions 8 of the fixing portions 7. In Fig. 2, the claw portion 9 is not inserted in the third fixing portion 7c. That is, the claw portion 9 is not included at a position corresponding to the third fixing portion 7c on the front panel 5. The claw portion 9 is inserted in each of the other fixing portions 7, that is, the first fixing portion 7a, the second fixing portion 7b, the fourth fixing portion 7d, and the fifth fixing portion 7e. Therefore, the claw portion 9 is provided at each of positions corresponding to the fixing portions 7a, 7b, 7d, and 7e on the front panel 5. Such a configuration is adopted in order to use the base plate 3 in common and to appropriately use the front panel 5 according to a model. For example, in a case of a heavy model, a large number of the claw portions
9 are provided on the front panel 5 compared to a case of
a light model. Therefore, in the case of the light model,
for example, the claw portions 9 are provided only at
positions corresponding to three fixing portions including
the first fixing portion 7a, the third fixing portion 7c,
and the fifth fixing portion 7e.
[00251
In the aforementioned indoor unit 1, the following
operation effects can be achieved.
Since the bottom surface 8a is provided such that an operator can touch between the claw portion 9 inserted in the recessed portion 8 of the fixing portion 7 and the bottom surface by a finger, the operator can recognize the step between the bottom surface 8a and the claw portion 9 by touching, and can check the existence of the claw portion 9. Therefore, even in a case where the fixing portions 7 that attach or detach the base plate 3 to or from the front panel 5 are provided on upper portions of the base plate 3 and the front panel 5 and thus it is difficult for the operator to see the fixing portions, the existence of the claw portions 9 can be reliably recognized.
[0026]
Since the protruding portions 9a are provided on the
upper surface of the claw portion 9, an operator can
recognize the steps of the protruding portions 9a by
touching, and the existence of the claw portion 9 can be
checked. Therefore, even in a case where the fixing
portions 7 that attach or detach the base plate 3 to or
from the front panel 5 are provided on the upper portions
of the base plate 3 and the front panel 5 and thus it is
difficult for the operator to see the fixing portions, the
existence of the claw portions 9 can be reliably
recognized.
[0027]
A combination of the claw portion 9 and the recessed
portion 8 is changed according to a model of the indoor
unit 1 such that at least one of the plurality of fixing
portions 7 has the claw portion 9 disposed in the recessed
portion 8 and the other fixing portions 7 do not have the
claw portions 9 disposed in the recessed portions 8.
Specifically, in the case of the heavy model, a large
number of the claw portions 9 are engaged with the
recessed portions 8 compared to the case of the light
model. Since an operator can differentiate the fixing
portion 7 where the claw portion 9 exists from the fixing
portions 7 where the claw portions do not exist even in
such a case, the operator does not make a mistake in
operation even when a model differs.
[0028]
Although a configuration where the recessed portions
8 are provided in the base plate 3 and the claw portions 9
are provided on the front panel 5 is adopted in the
aforementioned embodiment, a configuration where the claw
portions 9 are provided on the base plate 3 and the
recessed portions 8 are provided in the front panel 5 may
be adopted.
Reference Signs List
[0029]
1: indoor unit
3: base plate
: front panel
7: fixing portion
8: recessed portion
8a: bottom surface
8b: insertion hole
9: claw portion
9a: protruding portion

Claims (3)

  1. The claims defining the invention are as follows:
    [Claim 1]
    An indoor unit for an air conditioning device,
    comprising:
    a base plate fixed to an indoor wall surface;
    a front panel fixed to the base plate; and
    a detachable fixing portion that is provided between
    an upper portion of the base plate and an upper portion of
    the front panel,
    wherein the fixing portion includes a recessed
    portion that is provided in any one of the base plate and
    the front panel, is sunken downwards, and has an insertion
    hole formed therein, and a claw portion that is provided
    on the other one of the base plate and the front panel and
    engages with the recessed portion by being inserted into
    the insertion hole and being advanced into the recessed
    portion,
    a gap having a dimension that allows an operator to
    touch by a finger is provided between a side of the claw
    portion inserted in the recessed portion and a side
    portion of the recessed portion, in a state where the
    front panel is attached to the base plate,_and
    the recessed portion has a bottom surface that is
    capable of being touched by the finger through the gap.
  2. [Claim 2]
    An indoor unit for an air conditioning device,
    comprising:
    a base plate fixed to an indoor wall surface;
    a front panel fixed to the base plate; and
    a detachable fixing portion that is provided between
    an upper portion of the base plate and an upper portion of
    the front panel,
    wherein the fixing portion includes a recessed
    portion that is provided in any one of the base plate and
    the front panel, is sunken downwards, and has an insertion
    hole formed therein, and a claw portion that is provided
    on the other one of the base plate and the front panel and
    engages with the recessed portion by being inserted into
    the insertion hole and being advanced into the recessed
    portion,
    a gap having a dimension that allows an operator to
    touch by a finger is provided between a side of the claw
    portion inserted in the recessed portion and a side
    portion of the recessed portion, in a state where the
    front panel is attached to the base plate,_and
    a plurality of recesses or protruding portions are
    provided on an upper surface of the claw portion.
  3. [Claim 3]
    The indoor unit for an air conditioning device according to Claim 1 or 2, wherein a plurality of the fixing portions are provided, the claw portion is disposed in the recessed portion of at least one of the plurality of fixing portions, and the claw portion is not disposed in the recessed portion of the other fixing portion.
AU2018259337A 2017-04-28 2018-03-16 Indoor unit for air conditioning device Active AU2018259337B2 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2017090445A JP6971620B2 (en) 2017-04-28 2017-04-28 Indoor unit of air conditioner
JP2017-090445 2017-04-28
PCT/JP2018/010372 WO2018198585A1 (en) 2017-04-28 2018-03-16 Indoor unit for air conditioning device

Publications (2)

Publication Number Publication Date
AU2018259337A1 AU2018259337A1 (en) 2019-07-11
AU2018259337B2 true AU2018259337B2 (en) 2020-08-06

Family

ID=63918376

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2018259337A Active AU2018259337B2 (en) 2017-04-28 2018-03-16 Indoor unit for air conditioning device

Country Status (4)

Country Link
EP (1) EP3543619A4 (en)
JP (1) JP6971620B2 (en)
AU (1) AU2018259337B2 (en)
WO (1) WO2018198585A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111237978A (en) * 2020-02-20 2020-06-05 珠海格力电器股份有限公司 Air conditioner and control method thereof

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Publication number Priority date Publication date Assignee Title
JPH0468925U (en) * 1990-10-19 1992-06-18
JPH0794923B2 (en) * 1989-08-29 1995-10-11 三菱電機株式会社 Air conditioner mounting device
JPH10227476A (en) * 1997-02-14 1998-08-25 Mitsubishi Heavy Ind Ltd Installation device for air conditioner
US20150300678A1 (en) * 2014-04-21 2015-10-22 Mitsubishi Electric Corporation Air-conditioning unit

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Publication number Priority date Publication date Assignee Title
JPS5816582Y2 (en) * 1977-11-30 1983-04-04 株式会社東芝 Air conditioner indoor unit
JPS54154506U (en) * 1978-04-18 1979-10-27
JPH0611150A (en) * 1992-06-29 1994-01-21 Hitachi Ltd Installing device for air conditioner
JPH09324927A (en) * 1996-06-06 1997-12-16 Fujitsu General Ltd Installation apparatus for air conditioner
JP4451956B2 (en) * 2000-01-19 2010-04-14 三菱重工業株式会社 Indoor unit
JP3879432B2 (en) * 2000-04-24 2007-02-14 松下電器産業株式会社 Air conditioner installation equipment
JP2007147118A (en) 2005-11-25 2007-06-14 Fujitsu General Ltd Air conditioner
JP2011064353A (en) * 2009-09-15 2011-03-31 Sharp Corp Air conditioner

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0794923B2 (en) * 1989-08-29 1995-10-11 三菱電機株式会社 Air conditioner mounting device
JPH0468925U (en) * 1990-10-19 1992-06-18
JPH10227476A (en) * 1997-02-14 1998-08-25 Mitsubishi Heavy Ind Ltd Installation device for air conditioner
US20150300678A1 (en) * 2014-04-21 2015-10-22 Mitsubishi Electric Corporation Air-conditioning unit

Also Published As

Publication number Publication date
JP2018189281A (en) 2018-11-29
JP6971620B2 (en) 2021-11-24
AU2018259337A1 (en) 2019-07-11
EP3543619A1 (en) 2019-09-25
WO2018198585A1 (en) 2018-11-01
EP3543619A4 (en) 2019-12-18

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