US20230126562A1 - Installation plate for indoor unit - Google Patents

Installation plate for indoor unit Download PDF

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Publication number
US20230126562A1
US20230126562A1 US17/914,896 US202017914896A US2023126562A1 US 20230126562 A1 US20230126562 A1 US 20230126562A1 US 202017914896 A US202017914896 A US 202017914896A US 2023126562 A1 US2023126562 A1 US 2023126562A1
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US
United States
Prior art keywords
pipe connection
connection hole
pipe
installation plate
main body
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.)
Abandoned
Application number
US17/914,896
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English (en)
Inventor
Shinji Kawai
Masato Ishikawa
Hisanori IKEDA
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 Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Electric Corp filed Critical Mitsubishi Electric Corp
Assigned to MITSUBISHI ELECTRIC CORPORATION reassignment MITSUBISHI ELECTRIC CORPORATION ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: KAWAI, SHINJI, IKEDA, HISANORI, ISHIKAWA, MASATO
Publication of US20230126562A1 publication Critical patent/US20230126562A1/en
Abandoned legal-status Critical Current

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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
    • 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
    • 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
    • F24F2221/00—Details or features not otherwise provided for
    • F24F2221/26—Details or features not otherwise provided for improving the aesthetic appearance

Definitions

  • the present disclosure relates to an installation plate for an indoor unit in an air-conditioning apparatus, which is attached to a wall in a room.
  • an indoor unit of a wall-mounted air-conditioning apparatus has been installed on a wall in a room, with an installation plate interposed between the indoor unit and the wall, the installation plate being attached to the wall.
  • the installation plate has a pipe drawing hole or a pipe drawing cutout for passage of a pipe that is drawn out from the indoor unit and that is connected to an outdoor unit installed outdoors.
  • a hole or cutout is provided, for example, in an outer periphery of lower part of the installation plate (for example, see Patent Literature 1).
  • a so-called embedded pipe or pipes which are a pipe or pipes provided in a wall to connect the indoor unit and the outdoor unit are installed.
  • the pipe or pipes may not be connected at central part of a rear surface of the indoor unit. Therefore, in some cases, the pipe or pies are drawn to the outside of the indoor unit. In this case, the pipe or pipes are exposed in the room, thus deteriorating the appearance of the room.
  • various methods have been proposed as a method of enabling pipe connection to be performed on the rear side of the indoor unit using an embedded pipe or pipes.
  • a first method of enabling the pipe connection to be performed on the rear side of the indoor unit is a method in which a cutout for avoiding a pipe or pipes is formed large in advance near central part of lower part of the installation plate in consideration of the shape or shapes and position or positions of the pipe or pipes.
  • the cutout is formed excessively large relative to the installation plate, thus lowering the strength of the installation plate.
  • a second method of enabling the pipe connection to be performed on the rear side of the indoor unit is a method in which a perforated cut line is formed in the installation plate, in place of the cutout in the first method.
  • the installation plate is cut along the perforated cut line, thereby enabling the pipe connection to be performed on the rear surface of the indoor unit.
  • the workability is not improved, that is, in this method, a blade of a tool does not easily enter the installation plate when the installation plate is cut at an installation site of the indoor unit, and as a result, the workability is deteriorated.
  • the present disclosure is made in view of the above problem of the related art, and relates to an installation plate for an indoor unit, which enables a pipe connection work to be easily performed, while ensuring a sufficient strength.
  • An installation plate for an indoor unit of an embodiment of the present disclosure is an installation plate for use in installation of an indoor unit that is to be connected to an outdoor unit using an embedded pipe provided in a wall of a house, and includes: a main body portion formed in a flat plate shape; a pipe connection hole provided in the main body portion to allow the embedded pipe to pass through the pipe connection hole; and a hole expansion portion that is an area provided adjacent to at least part of the pipe connection hole and subjected to cutout preliminary processing for expansion of the pipe connection hole.
  • the hole expansion portion is provided adjacent to the pipe connection hole. Therefore, it is not necessary to provide a large pipe connection hole in advance in consideration of the shape or shapes and position or positions of the embedded pipe or pipes. Thus, it is possible to ensure a sufficient strength of the installation plate.
  • the hole expansion portion can be easily cut. Accordingly, the pipe connection hole can be easily expanded. In addition, a pipe connection work can be easily performed.
  • FIG. 1 is a schematic diagram illustrating an example of an air-conditioning apparatus according to Embodiment 1.
  • FIG. 2 is a perspective view illustrating an example of an indoor unit of the air-conditioning apparatus according to Embodiment 1.
  • FIG. 3 is a front view illustrating an example of an indoor-unit main body as illustrated in FIG. 2 .
  • FIG. 4 is an exploded perspective view illustrating an example of the indoor unit of the air-conditioning apparatus according to Embodiment 1.
  • FIG. 5 is a schematic sectional view of the indoor unit as illustrated in FIG. 3 that is taken along line A-A as viewed in an arrow direction.
  • FIG. 6 is a front view illustrating an example of an installation plate for the indoor unit according to Embodiment 1.
  • FIG. 7 is a schematic diagram enlargedly illustrating a periphery of a pipe connection hole of the installation plate as illustrated in FIG. 6 .
  • FIG. 8 is a schematic diagram for explanation of a method of fixing the indoor-unit main body to the installation plate.
  • FIG. 9 is a schematic diagram for explanation of installation of the indoor unit according to Embodiment 1.
  • FIG. 10 is another schematic diagram for explanation of the installation of the indoor unit according to Embodiment 1.
  • FIG. 11 is still another schematic diagram for explanation of the installation of the indoor unit according to Embodiment 1.
  • FIG. 12 is a schematic diagram for explanation of connection of each of a plurality of pipe connection holes provided.
  • FIG. 1 is a schematic diagram illustrating an example of the air-conditioning apparatus according to Embodiment 1.
  • an air-conditioning apparatus 100 according to Embodiment 1 includes an indoor unit 1 and an outdoor unit 2 .
  • the indoor unit 1 and the outdoor unit 2 are connected by connection between an indoor-side connection pipe provided at the indoor unit 1 and an outdoor-side connection pipe provided at the outdoor unit 2 .
  • the indoor-side connection pipe and the outdoor-side connection pipe are connected using an embedded pipe or embedded pipes 201 (see FIG. 9 ) embedded in a pipe insertion portion 200 provided in a wall of a house.
  • refrigerant circulates through each of the pipes.
  • FIG. 2 is a perspective view illustrating an example of the indoor unit of the air-conditioning apparatus according to Embodiment 1.
  • the indoor unit 1 of the air-conditioning apparatus according to Embodiment 1 includes an indoor-unit main body 20 and an installation plate 10 , and the indoor-unit main body 20 is installed on the installation plate 10 , which is fixed to, for example, a wall in a room.
  • FIG. 3 is a front view illustrating an example of the indoor-unit main body as illustrated in FIG. 2 .
  • the indoor-unit main body 20 includes a housing 21 , and a rear surface case 22 provided on a rear surface of the housing 21 .
  • the indoor-unit main body 20 has a laterally long shape in which a length of the indoor-unit main body 20 in a lateral direction is greater than a length thereof in an up-down direction. That is, each of the housing 21 and the rear surface case 22 has a laterally long shape.
  • a direction from a front surface of the indoor-unit main body 20 to a rear surface thereof and a direction from the rear surface to the front surface may be each referred to as a front-back direction of the indoor-unit main body 20 .
  • FIG. 4 is an exploded perspective view illustrating an example of the indoor unit of the air-conditioning apparatus according to Embodiment 1.
  • FIG. 5 is a schematic sectional view of the indoor unit as illustrated in FIG. 3 that is taken along line A-A as viewed in an arrow direction.
  • a heat exchanger 23 As illustrated in FIGS. 4 and 5 , in the indoor-unit main body 20 , a heat exchanger 23 , an air-sending fan 24 , an electric component box 25 , and a drain pan assembly 26 are housed in a space defined by the housing 21 and the rear surface case 22 .
  • An air inlet 21 A is formed in an upper surface of the housing 21 to allow air in an air-conditioning target space to be sucked into the housing 21 . Furthermore, an air outlet 21 B is formed in a bottom surface of the housing 21 to allow air to be blown therefrom to the air-conditioning target space. In the housing 21 , an air passage is provided through which the air sucked through the air inlet 21 A is made to flow to the air outlet 21 B by rotation of the air-sending fan 24 .
  • the heat exchanger 23 causes heat exchange to be performed between refrigerant and air that is sucked through the air inlet 21 A by rotation of the air-sending fan 24 .
  • the heat exchanger 23 is provided in the air passage from the air inlet 21 A to the air outlet 21 B.
  • the air subjected to the heat exchange changes into cold air or warm air, and the cold air or the warm air is blown out from the air outlet 21 B.
  • the air-sending fan 24 takes in indoor air from the air inlet 21 A, causes the air to pass through the heat exchanger 23 which is provided in the vicinity of the air-sending fan 24 , and sends out the air from the air outlet 21 B after the air is subjected to the heat exchange.
  • the air-sending fan 24 is, for example, a crossflow fan, and is driven by a motor not illustrated.
  • the electric component box 25 houses electric components such as a control board that controls the indoor unit 1 .
  • the drain pan assembly 26 is provided below the heat exchanger 23 .
  • a drain pan is provided on an upper surface of the drain pan assembly 26 , and collects drain water generated at the heat exchanger 23 .
  • FIG. 6 is a front view illustrating an example of the installation plate for the indoor unit 1 according to Embodiment 1.
  • FIG. 7 is a schematic diagram enlargedly illustrating a periphery of a pipe connection hole of the installation plate as illustrated in FIG. 6 .
  • the installation plate 10 is made of a steel plate, and is used when the indoor-unit main body 20 is attached to a wall surface. As illustrated in FIG. 6 , the installation plate 10 has a main body portion 11 formed in a flat plate shape, a plurality of upper support pieces 12 , a plurality of lower fitting holes 13 , a pipe connection hole 14 , and a hole expansion portion 15 .
  • the upper support pieces 12 are provided at an upper end of the main body portion 11 , and are formed such that respective upper fitting portions 27 (see FIG. 8 ) provided at upper part of the rear surface of the indoor-unit main body 20 can be hooked to the upper support pieces 12 .
  • the upper support pieces 12 are provided at three positions which are, for example, located close to a left end, a right end, and central part of the main body portion 11 , respectively.
  • the upper support pieces 12 are provided at the three positions at the upper end of the main body portion 11 ; however, the positions of the upper support pieces 12 are not limited to those of the above example, and for example, it suffices that at least two upper support pieces 12 are provided on the right side and the left side, respectively.
  • the lower fitting holes 13 are provided at a lower end of the main body portion 11 , and are formed such that respective lower hook claws 28 (see FIG. 8 ) provided at a lower part of the rear surface of the indoor-unit main body 20 are hooked to and caught by the lower fitting holes 13 .
  • the lower fitting holes 13 are provided at two positions, which are located, for example, close to the right end and the left end of the main body portion 11 , respectively.
  • the pipe connection hole 14 is provided in a rectangular shape at a position close to the center of the lower part of the main body portion 11 .
  • the pipe connection hole 14 is provided to allow either the embedded pipe or pipes 201 in the pipe insertion portion 200 provided on the wall surface or the indoor-side connection pipe of the indoor-unit main body 20 to pass through the pipe connection hole 14 , and is also provided for connection between the embedded pipe or pipes 201 and the indoor-side connection pipe of the indoor-unit main body 20 attached to the installation plate 10 .
  • An outer peripheral edge of the pipe connection hole 14 is bent. More specifically, as illustrated in FIG. 7 , the outer peripheral edge is bent by 180 degrees and is brought into intimate contact with the main body portion, thereby forming an intimate-contact bent portion 14 a at the pipe connection hole 14 .
  • the pipe connection hole 14 is subjected to the intimate-contact bending processing, it is possible to protect the edge of the pipe connection hole 14 and ensure safety of the pipe connection hole 14 .
  • the intimate-contact bending processing for example, it is possible to reinforce the pipe connection hole 14 and improving the appearance of the pipe connection hole 14 .
  • the pipe connection hole 14 has a rectangular shape, it is not limiting, and the pipe connection hole 14 may have, for example, a circular shape or a polygonal shape.
  • the number of pipe connection holes 14 is not limited to one, and although it depends on an installation environment, a plurality of pipe connection holes may be provided.
  • the hole expansion portion 15 as illustrated in FIG. 6 is provided adjacent to at least part of the pipe connection hole 14 .
  • the hole expansion portion 15 is an area subjected to cutout preliminary processing and is formed by, for example, a perforated cut line. By cutting the hole expansion portion 15 along the cut line, it is possible to expand the pipe connection hole 14 .
  • the pipe connection hole 14 is not formed by cutting the lower part of the main body portion 11 but is formed such that the lower part of the main body portion 11 is left. Since the pipe connection hole 14 is formed in such a manner, it is possible to ensure a sufficient strength of the installation plate 10 .
  • FIG. 8 is a schematic diagram for explanation of a method of fixing the indoor-unit main body to the installation plate.
  • the upper fitting portions 27 provided at the upper part on the rear surface of the indoor-unit main body 20 are hooked to the respective upper support pieces 12 of the installation plate 10 .
  • the lower part of the indoor-unit main body 20 is pushed toward the installation plate 10 while the indoor-unit main body 20 is being pivoted on the upper support pieces 12 , and the lower hook claws 28 provided at the lower part on the rear surface of the indoor-unit main body 20 are hooked to the respective lower fitting holes 13 .
  • the indoor-unit main body 20 is fixed to the installation plate 10 , and the indoor unit 1 is installed on the wall surface.
  • FIG. 9 to FIG. 11 are schematic diagrams for explanation of installation of the indoor unit according to Embodiment 1.
  • the installation plate 10 is installed on the wall while the embedded pipes 201 are being inserted into the pipe connection hole 14 of the installation plate 10 ( FIG. 10 ).
  • the indoor-unit main body 20 is fixed to the installed installation plate 10 , and the embedded pipes 201 and the indoor-side connection pipe of the indoor unit 1 are connected ( FIG. 11 ).
  • the pipe connection hole 14 is formed in advance in the installation plate 10 for the indoor unit 1 according to Embodiment 1. Therefore, the embedded pipe or pipes 201 and the indoor-side connection pipe can be connected with the rear surface of the indoor unit 1 without the need to perform processing such as cutting of the installation plate 10 at an installation site.
  • FIG. 12 is related to an example in which a plurality of pipe connection holes 14 are provided, and is a schematic diagram for explanation of connection of each of the pipe connection holes 14 . In this example, two pipe connection holes 14 are provided.
  • a refrigerant pipe 201 a to be connected to the indoor-side connection pipe and a drainage hose 201 b for drainage of drain water generated in the indoor unit 1 to the outdoors are inserted as the embedded pipes 201 , in the pipe insertion portion 200 provided in the wall. Therefore, in this case, the refrigerant pipe 201 a may be inserted into one of the pipe connection holes 14 , and the drainage hose 201 b may be inserted into the other pipe connection hole 14 . That is, in the case where the embedded pipes 201 are a plurality of pipes having different uses, the plurality of pipe connection holes 14 may be provided in association with the respective pipes.
  • the installation plate 10 of the indoor unit 1 according to Embodiment 1 includes the pipe connection hole 14 that is provided in the main body portion 11 to allow the embedded pipe or pipes 201 to pass therethrough, and the hole expansion portion 15 that is provided adjacent to the pipe connection hole 14 to expand the pipe connection hole 14 . Since the hole expansion portion 15 adjacent to the pipe connection hole 14 is provided in the installation plate 10 as described above, it is not necessary to provide a large pipe connection hole 14 in advance in consideration of the shape or shapes and the position or positions of the embedded pipe or pipes 201 . It is therefore possible to ensure a sufficient strength of the installation plate 10 .
  • the hole expansion portion 15 is adjacent to the pipe connection hole 14 , in the case of expanding the pipe connection hole 14 in consideration of the shape or shapes and the position or positions of the embedded pipe or pipes 201 , the hole expansion portion 15 can be easily cut, thereby easily expanding the pipe connection hole 14 . It is therefore possible to improve the workability during the pipe connection work.
  • the hole expansion portion 15 is formed by the perforated cut line. Therefore, in the case where the pipe connection hole 14 is expanded, the worker can easily insert the tool into the installation plate 10 using the pipe connection hole 14 . Thus, the hole expansion portion 15 can be easily cut.
  • the pipe connection hole 14 has the intimate-contact bent portion 14 a located at its outer periphery.
  • the outer peripheral edge of the pipe connection hole 14 is bent by 180 degrees and brought into intimate contact with the main body portion, thereby forming the intimate-contact bent portion 14 a .
  • the edge of the pipe connection hole 14 is protected, and safety of the pipe connection hole 14 can be ensured.

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  • 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)
US17/914,896 2020-05-26 2020-05-26 Installation plate for indoor unit Abandoned US20230126562A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2020/020732 WO2021240643A1 (ja) 2020-05-26 2020-05-26 室内機の据付板

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US20230126562A1 true US20230126562A1 (en) 2023-04-27

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US17/914,896 Abandoned US20230126562A1 (en) 2020-05-26 2020-05-26 Installation plate for indoor unit

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US (1) US20230126562A1 (https=)
JP (1) JP7309065B2 (https=)
DE (1) DE112020007242B4 (https=)
WO (1) WO2021240643A1 (https=)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6103973A (en) * 1998-12-22 2000-08-15 Square D Company Knockout pattern for bundled wire and conduit fittings
US7421804B1 (en) * 2006-02-02 2008-09-09 Hession Edward B Device for attaching an exhaust hose to a clothes dryer
US7786391B1 (en) * 2006-07-05 2010-08-31 Universal Lighting Technologies, Inc. Ballast housing having rolled edge lead wire exit
US20100243315A1 (en) * 2009-03-30 2010-09-30 Siemens Industry, Inc. Removable Knockout Plate For Enclosures
US8193444B2 (en) * 2009-03-12 2012-06-05 Big Sky Eight, LLC Conduit box
US20140326837A1 (en) * 2009-08-25 2014-11-06 Hot Edge, LLC Methods and Arrangements for Securing Cable to a Roof

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5844254Y2 (ja) * 1979-12-03 1983-10-07 ダイキン工業株式会社 室内ユニットの壁掛装置
JPS6219531U (https=) * 1985-07-22 1987-02-05
JPH01112341U (https=) 1988-01-25 1989-07-28
JPH062022U (ja) 1992-06-05 1994-01-14 株式会社富士通ゼネラル 室内機の据付装置
JP2008209095A (ja) 2007-02-28 2008-09-11 Sanyo Electric Co Ltd 空気調和機
JP5359771B2 (ja) 2009-09-25 2013-12-04 三洋電機株式会社 分離型空気調和機の室内ユニットの据付装置
JP2011080626A (ja) * 2009-10-05 2011-04-21 Mitsubishi Electric Corp 空気調和機の室内機およびこれを備えた空気調和機
JP6415742B2 (ja) 2015-10-08 2018-10-31 三菱電機株式会社 室内機および空気調和機
JP2018091508A (ja) 2016-11-30 2018-06-14 三菱重工サーマルシステムズ株式会社 外面パネル、空気調和機の室内機、ノックアウト方法、及び空気調和機の室内機の据付方法

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6103973A (en) * 1998-12-22 2000-08-15 Square D Company Knockout pattern for bundled wire and conduit fittings
US7421804B1 (en) * 2006-02-02 2008-09-09 Hession Edward B Device for attaching an exhaust hose to a clothes dryer
US7786391B1 (en) * 2006-07-05 2010-08-31 Universal Lighting Technologies, Inc. Ballast housing having rolled edge lead wire exit
US8193444B2 (en) * 2009-03-12 2012-06-05 Big Sky Eight, LLC Conduit box
US20100243315A1 (en) * 2009-03-30 2010-09-30 Siemens Industry, Inc. Removable Knockout Plate For Enclosures
US20140326837A1 (en) * 2009-08-25 2014-11-06 Hot Edge, LLC Methods and Arrangements for Securing Cable to a Roof

Also Published As

Publication number Publication date
DE112020007242B4 (de) 2023-09-28
JPWO2021240643A1 (https=) 2021-12-02
JP7309065B2 (ja) 2023-07-14
WO2021240643A1 (ja) 2021-12-02
DE112020007242T5 (de) 2023-03-16

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