WO2021171483A1 - Indoor unit and air-conditioning device - Google Patents

Indoor unit and air-conditioning device Download PDF

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Publication number
WO2021171483A1
WO2021171483A1 PCT/JP2020/008031 JP2020008031W WO2021171483A1 WO 2021171483 A1 WO2021171483 A1 WO 2021171483A1 JP 2020008031 W JP2020008031 W JP 2020008031W WO 2021171483 A1 WO2021171483 A1 WO 2021171483A1
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WO
WIPO (PCT)
Prior art keywords
indoor unit
top plate
indoor
hanging bolt
conduit
Prior art date
Application number
PCT/JP2020/008031
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French (fr)
Japanese (ja)
Inventor
翔野 楠本
田澤　哲也
Original Assignee
三菱電機株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 三菱電機株式会社 filed Critical 三菱電機株式会社
Priority to PCT/JP2020/008031 priority Critical patent/WO2021171483A1/en
Priority to JP2022502714A priority patent/JP7317202B2/en
Publication of WO2021171483A1 publication Critical patent/WO2021171483A1/en

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    • 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
    • F24F13/20—Casings or covers

Definitions

  • the present disclosure relates to an indoor unit and an air conditioner provided with an electrical component storage box for storing electrical components.
  • a ceiling-embedded indoor unit is provided by suspending the indoor unit body in the space behind the ceiling via a hanging bolt or the like, and using a decorative panel attached to the surface of the indoor unit body facing the room. It has a structure that is covered.
  • mounting brackets that engage with hanging bolts are placed at the corners of the indoor unit body, and by fixing with nuts, etc., it is stable on the ceiling as the mounted part. It is designed to be installed.
  • such a ceiling-embedded indoor unit is provided in the main body of the indoor unit and is provided with an electrical component storage box for storing electrical parts mounted on the indoor unit.
  • This electrical component storage box is provided around the corner where the installation bracket of the indoor unit main body is arranged, and is connected as a conduit cable in which an electric wire for power supply or the like is covered with a conduit (see, for example, Patent Document 1). ..
  • This conduit cable is fixed to the indoor unit main body via a conduit fixing bracket (in Patent Document 1, a conduit mounting member).
  • the present disclosure is for solving the above-mentioned problems, and an object of the present disclosure is to provide an indoor unit and an air conditioner capable of simplifying the ceiling installation work and improving the work efficiency.
  • the indoor unit includes an indoor unit main body, an electrical component storage box housed in the indoor unit main body and storing electrical parts, and an installation member provided at a corner of the indoor unit main body.
  • An indoor unit whose one end is fixed to the installation member and the other end is installed in the mounted portion by a hanging bolt fixed to the mounted portion, and is attached to the electric component housed in the electrical component storage box.
  • a conduit cable having a connected electric wire and a conduit covering the electric wire, and a fixing member to which an end portion of the conduit cable is attached, and the fixing member is provided with an opening.
  • the fixing member is such that the hanging bolt is passed through the opening of the top plate and temporarily fixed to the hanging bolt in a state of being in contact with the protective member.
  • the air conditioner according to the present disclosure includes the above-mentioned indoor unit and outdoor unit, the indoor unit includes an indoor heat exchanger, and the outdoor unit includes an outdoor heat exchanger, a compressor, and a drawing device. And, the indoor heat exchanger and the outdoor heat exchanger are connected by piping to form a refrigerant circuit.
  • the fixing member for attaching the conduit cable penetrates the suspension bolt through the opening formed in the top plate and is brought into contact with the protective member provided in the opening. Temporarily fixed to the hanging bolt in the state. Therefore, since the ceiling installation work of the indoor unit can be performed with the fixing member temporarily fixed to the hanging bolt, it is possible to save the labor of the conventional operator while holding the fixing member by hand, and during the ceiling installation work. In particular, it is possible to simplify the work in a high place or in an environment where the work space is narrow. Thus, the ceiling installation work can be simplified and the work efficiency can be improved.
  • FIG. 5 is an exploded perspective view for explaining the installation work of the indoor unit main body of FIG. It is a schematic diagram which shows the refrigerant circuit of the air conditioner which concerns on Embodiment 2.
  • FIG. 1 is a perspective view showing the appearance of the indoor unit 100 according to the first embodiment.
  • FIG. 2 is a perspective view showing the indoor unit main body 1 of FIG.
  • the indoor unit 100 in the first embodiment is connected to the outdoor unit by a refrigerant pipe (not shown), and constitutes an air conditioning device that circulates the refrigerant in the refrigerant circuit together with the outdoor unit to perform freezing or air conditioning.
  • the indoor unit 100 of the first embodiment is a ceiling-embedded indoor unit, and the unidirectional cassette type indoor unit will be described below as an example thereof.
  • the indoor unit 100 has a rectangular box-shaped indoor unit main body 1 for accommodating an indoor blower, an indoor heat exchanger, and the like (not shown), via a hanging bolt 2. It is installed by being embedded inside the ceiling of an indoor space (not shown). In the following description, the ceiling will be on the top and the direction in which the interior space is viewed from the ceiling will be on the bottom. When the indoor unit main body 1 is installed inside the ceiling, the lower surface on the indoor side is covered with the decorative panel 1a. Further, around the corners of the indoor unit main body 1, an electrical component storage box 10 is provided which is housed in the indoor unit main body 1 and stores electrical parts (not shown).
  • a fixing bracket 20 which is a fixing member to which the end of the conduit cable 21 is attached via the nut 22b is provided at the corner of the indoor unit main body 1 and around the electrical component storage box 10.
  • the conduit cable 21 is formed by covering the electric wire 11 (see FIG. 4 described later) connected to the electric component housed in the electrical component storage box 10 and the conduit 21a covering the electric wire 11. (See FIG. 4 described later).
  • a terminal block (not shown) may be provided in the electrical component storage box 10 so that the connection cable is pulled in. Further, the electrical component storage box 10 has a structure in which the electric wire 11 (high electric wire) of the connection cable is passed through the conduit 21a and the conduit cable 21 is pulled into the electrical component storage box 10 depending on the country or region.
  • the indoor unit main body 1 As shown in FIG. 2, at the corners, that is, the four corners of the indoor unit main body 1, the indoor unit main body 1 is engaged with the hanging bolts 2 attached to the ceiling or the like, and the indoor unit main body 1 is suspended by a nut or the like (not shown).
  • An installation fitting 3 which is an installation member for fixing to 2 is provided. That is, when the indoor unit main body 1 is embedded in the ceiling of an indoor space (not shown) and installed, one end of the hanging bolt 2 is fixed to the installation metal fitting 3.
  • FIG. 3 is a perspective view for explaining the fixing bracket 20 in the indoor unit main body 1 of FIG.
  • FIG. 4 is an exploded perspective view for explaining the fixing bracket 20 of FIG.
  • the fixing bracket 20 is provided at the corners of the indoor unit main body 1, for example, at the four corners and around the electrical component storage box 10.
  • the fixing bracket 20 includes a top plate 20a in which an elongated hole 20b, which is an opening, is formed, a side plate in which a mounting portion 20d is formed so as to be connected to the top plate 20a and to which an end portion of the conduit cable 21 is attached.
  • the fixing bracket 20 has a sponge-like insulation 20c provided with a slit as a protective member attached to the elongated hole 20b of the top plate 20a.
  • the insulation 20c is a general protective member provided at a connecting portion of a member or the like in order to prevent the tip of the screw or the like from interfering with another member.
  • the hanging bolt 2 is flexibly held by utilizing the characteristics of the sponge-like material, and is used for temporarily fixing the fixing bracket 20.
  • the fixing bracket 20 has a front plate 20f arranged so as to be connected to the top plate 20a and the side plate 20e. That is, the fixing bracket 20 has a rectangular shape that is closed by the top plate 20a, the side plate 20e, and the front plate 20f, except for the surface side facing the indoor unit main body 1.
  • the fixing bracket 20 has a rectangular parallelepiped shape in which the surface side facing the indoor unit main body 1 is opened.
  • the mounting portion 20d of the side plate 20e has an end portion of a conduit cable 21 having an electric wire 11 connected to an electric component stored in the electrical component storage box 10 and a conduit 21a covering the electric wire 11. , Attached via bolts 22a and nuts 22b.
  • FIG. 5 is an exploded perspective view for explaining the installation work of the indoor unit main body 1 of FIG.
  • the hanging bolt 2 whose other end is embedded and fixed inside the ceiling of the indoor space (not shown) and the installation bracket 3 of the indoor unit main body 1 are fixed.
  • the operator temporarily fixes the fixing bracket 20 to the hanging bolt 2 arranged at the mounting position of the fixing bracket 20.
  • the fixing bracket 20 is temporarily fixed to the hanging bolt 2 by inserting the hanging bolt 2 into the elongated hole 20b of the fixing bracket 20 and fitting the hanging bolt 2 into the insulation 20c via the slit 20ca. ..
  • the hanging bolts 2 are fixed to the installation fittings 3 at the four corners of the indoor unit main body 1. Therefore, since the ceiling installation work of the indoor unit 100 can be performed with the fixing bracket 20 temporarily fixed to the hanging bolt 2, it is possible to save the labor of the conventional operator while holding the fixing member by hand. can.
  • the fixing bracket 20 for attaching the conduit cable 21 is a long hole 20b formed in the top plate 20a.
  • the suspension bolt 2 is penetrated into the suspension bolt 2 and temporarily fixed to the suspension bolt 2 in a state of being in contact with the insulation 20c provided in the elongated hole 20b. Therefore, since the ceiling installation work of the indoor unit 100 can be performed with the fixing bracket 20 temporarily fixed to the hanging bolt 2, the conventional operator can save the trouble of holding the fixing bracket 20 by hand. It is possible to simplify the work during ceiling installation work, especially in a high place or in an environment where the work space is narrow. Thus, in the indoor unit 100 according to the first embodiment, the ceiling installation work can be simplified and the work efficiency can be improved.
  • the suspension bolt 2 can be easily fitted into the insulation 20c.
  • the fixing bracket 20 may be capable of sandwiching and holding the suspension bolt 2 by the insulation 20c in a state where the top plate 20a is separated from the mounting bracket 3.
  • the fixing bracket 20 is sandwiched and held by the hanging bolt 2. That is, as in the conventional case, when fixing the fixing bracket 20 in aerial work, even if the fixing bracket 20 is accidentally separated from the hand, the fixing bracket 20 is temporarily fixed, so that the fixing bracket 20 is temporarily fixed. Eliminates the need to pick up and improves ceiling installation workability.
  • the opening of the top plate 20a is formed by the elongated hole 20b, and the fixing bracket 20 is attached to the hanging bolt 2 along the longitudinal direction of the elongated hole 20b. It can be adjusted and held, improving ceiling installation workability.
  • the mounting bracket 3 is formed with a notch 3a into which the hanging bolt 2 is inserted, and the longitudinal direction of the elongated hole 20b of the top plate 20a coincides with the notch direction of the notch 3a.
  • FIG. 6 is a schematic view showing a refrigerant circuit of the air conditioner according to the second embodiment.
  • the outdoor unit 200 and the indoor unit 100 described in the first embodiment are connected by a gas refrigerant pipe 300 and a liquid refrigerant pipe 400 to form a refrigeration cycle.
  • the outdoor unit 200 includes a compressor 210, a four-way valve 220, an outdoor heat exchanger 230, and an expansion valve 240.
  • the outdoor unit 200 and the indoor unit 100 may be called an outdoor unit or an indoor unit.
  • the compressor 210 compresses and discharges the sucked refrigerant.
  • the compressor 210 may be one that arbitrarily changes the operating frequency and changes the capacity of the compressor 210 by, for example, an inverter circuit.
  • the capacity of the compressor 210 indicates the amount of refrigerant delivered per unit time.
  • the four-way valve 220 is a valve for switching the flow of the refrigerant between, for example, a cooling operation and a heating operation.
  • the outdoor heat exchanger 230 exchanges heat between the refrigerant and the outdoor air. For example, during heating operation, it functions as an evaporator to evaporate and vaporize the refrigerant. In addition, it functions as a condenser during cooling operation to condense and liquefy the refrigerant.
  • the expansion valve 240 decompresses and expands the refrigerant, and is composed of a throttle device, a flow rate control means, and the like.
  • the opening degree is adjusted according to an instruction from a control means (not shown) or the like.
  • the indoor unit 100 accommodates the indoor heat exchanger 110 inside the indoor unit main body 1 as a housing, and is installed on a hanging bolt 2 embedded in the ceiling of the indoor space near the corner of the indoor unit main body 1. It can be installed on the ceiling surface by sandwiching the metal fitting 3 with nuts or the like.
  • the indoor heat exchanger 110 exchanges heat between, for example, the air in the indoor space and the refrigerant.
  • the indoor heat exchanger 110 functions as a condenser during the heating operation to condense and liquefy the refrigerant. Further, the indoor heat exchanger 110 functions as an evaporator during the cooling operation to evaporate and vaporize the refrigerant.
  • the cooling operation in the air conditioner will be described based on the flow of the refrigerant.
  • the four-way valve 220 is switched so as to have a connection relationship shown by a solid line.
  • the high-temperature, high-pressure gas refrigerant compressed and discharged by the compressor 210 passes through the four-way valve 220 and flows into the outdoor heat exchanger 230.
  • the liquid refrigerant which is a refrigerant condensed and liquefied by passing through the outdoor heat exchanger 230 and exchanging heat with the outdoor air, flows into the expansion valve 240.
  • the refrigerant that has been decompressed by the expansion valve 240 and is in a gas-liquid two-phase state flows out from the outdoor unit 200.
  • the gas-liquid two-phase refrigerant that has flowed out of the outdoor unit 200 passes through the liquid refrigerant pipe 400, flows into the indoor unit 100, and passes through the indoor heat exchanger 110. Then, for example, the gas refrigerant, which is a refrigerant evaporated and gasified by exchanging heat with the air in the indoor space, flows out from the indoor unit 100.
  • the gas refrigerant flowing out of the indoor unit 100 passes through the gas refrigerant pipe 300 and flows into the outdoor unit 200. Then, it passes through the four-way valve 220 and is sucked into the compressor 210 again. As described above, the refrigerant of the air conditioner circulates and cools by air conditioning.
  • the heating operation will be described based on the flow of the refrigerant.
  • the four-way valve 220 is switched so as to have a connection relationship shown by a dotted line.
  • the high-temperature, high-pressure gas refrigerant compressed and discharged by the compressor 210 passes through the four-way valve 220 and flows out from the outdoor unit 200.
  • the gas refrigerant flowing out of the outdoor unit 200 passes through the gas refrigerant pipe 300 and flows into the indoor unit 100.
  • the indoor heat exchanger 110 for example, the condensed and liquefied refrigerant by heat exchange with the air in the indoor space flows out from the indoor unit 100.
  • the refrigerant flowing out of the indoor unit 100 passes through the liquid refrigerant pipe 400 and flows into the outdoor unit 200. Then, the refrigerant that has been decompressed by the expansion valve 240 and is in a gas-liquid two-phase state flows into the outdoor heat exchanger 230. Then, the liquid refrigerant, which is a refrigerant that has passed through the outdoor heat exchanger 230 and exchanged heat with the outdoor air to evaporate and gasify, passes through the four-way valve 220 and is sucked into the compressor 210 again. As described above, the refrigerant of the air conditioner circulates to perform heating by air conditioning.
  • the ceiling-embedded indoor unit 100 having a unidirectional cassette type that blows air in one direction has been described.
  • a room that blows air in two directions, three directions, four directions, or the like. It can also be applied to the machine 100.
  • a fixing bracket 20 for attaching a conduit cable 21 connected to the electrical component storage box 10 is provided at a corner of the indoor unit main body 1 of the indoor unit 100. ing. Then, during the ceiling installation work of the indoor unit 100, the fixing bracket 20 for attaching the conduit cable 21 penetrates the suspension bolt 2 through the elongated hole 20b formed in the top plate 20a, and the insulation 20c provided in the elongated hole 20b. It is temporarily fixed to the hanging bolt 2 in a state of being in contact with the hanging bolt 2.
  • the ceiling installation work of the indoor unit 100 can be performed with the fixing bracket 20 temporarily fixed to the hanging bolt 2, the conventional operator can save the trouble of holding the fixing bracket 20 by hand. It is possible to simplify the work during ceiling installation work, especially in a high place or in an environment where the work space is narrow. Thus, in the indoor unit 100 according to the first embodiment, the ceiling installation work can be simplified and the work efficiency can be improved.
  • 1 Indoor unit body 1a Decorative panel, 2 Hanging bolt, 3 Installation bracket, 3a Notch, 10 Electrical equipment storage box, 11 Electric wire, 20 Fixing bracket, 20a Top plate, 20b long hole, 20c insulation, 20ca slit, 20d Mounting part, 20e side plate, 20f front plate, 21 refrigerant cable, 21a refrigerant, 22a bolt, 22b nut, 100 indoor unit, 110 indoor heat exchanger, 200 outdoor unit, 210 compressor, 220 four-way valve, 230 outdoor heat exchange Vessel, 240 expansion valve, 300 gas refrigerant piping, 400 liquid refrigerant piping.

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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)

Abstract

This indoor unit is provided with an indoor unit body, an electric equipment storage box that is housed in the indoor unit body and that stores electric components, and a mounting member disposed at a corner part of the indoor unit body, and the indoor unit is installed to a to-be-mounted part by a hanger bolt having one end fixed to the mounting member and another end fixed to the to-be-mounted part. The indoor unit comprises: a conduit cable having an electric wire connected to the electric components stored in the electric equipment storage box and a conduit obtained by coating of the electric wire; and a fixing member to which an end part of the conduit cable is mounted. The fixing member has: a top surface plate on which an opening part is formed; a protective member provided to the opening part of the top surface plate; and a side surface plate which is disposed contiguous to the top surface plate and on which a mounting part having mounted thereto the end part of the conduit cable is formed. The fixing member is temporarily fixed to the hanger bolt in a state of allowing the hanger bolt to penetrate the opening part of the top surface plate so as to be in contact with the protective member.

Description

室内機および空気調和装置Indoor unit and air conditioner
　本開示は、電気部品を収納する電装品収納箱を備えた室内機および空気調和装置に関する。 The present disclosure relates to an indoor unit and an air conditioner provided with an electrical component storage box for storing electrical components.
　従来の空気調和装置において、天井埋込型の室内機は、天井裏の空間に吊りボルトなどを介して室内機本体を吊下げ、室内機本体の室内に向いている面に取り付けられる化粧パネルによって覆われる構造となっている。この種の天井埋込型の室内機は、室内機本体の角部に吊りボルトと係合する据付金具が配置され、ナットなどで固定されることで、被取付部としての天井に安定して設置されるようになっている。 In a conventional air conditioner, a ceiling-embedded indoor unit is provided by suspending the indoor unit body in the space behind the ceiling via a hanging bolt or the like, and using a decorative panel attached to the surface of the indoor unit body facing the room. It has a structure that is covered. In this type of ceiling-embedded indoor unit, mounting brackets that engage with hanging bolts are placed at the corners of the indoor unit body, and by fixing with nuts, etc., it is stable on the ceiling as the mounted part. It is designed to be installed.
　ところで、このような天井埋込型の室内機は、室内機本体内に設けられ、室内機に搭載される電気部品を収納する電装品収納箱を備えている。この電装品収納箱は、室内機本体の据付金具が配置される角部の周囲に設けられ、給電用などの電線がコンジットに被覆されたコンジットケーブルとして接続される（例えば、特許文献１参照）。このコンジットケーブルは、コンジット固定金具（特許文献１では、コンジット取り付け部材）を介して室内機本体に固定される。 By the way, such a ceiling-embedded indoor unit is provided in the main body of the indoor unit and is provided with an electrical component storage box for storing electrical parts mounted on the indoor unit. This electrical component storage box is provided around the corner where the installation bracket of the indoor unit main body is arranged, and is connected as a conduit cable in which an electric wire for power supply or the like is covered with a conduit (see, for example, Patent Document 1). .. This conduit cable is fixed to the indoor unit main body via a conduit fixing bracket (in Patent Document 1, a conduit mounting member).
特開２０１３－２４４５５号公報Japanese Unexamined Patent Publication No. 2013-24455
　しかしながら、従来の空気調和装置では、室内機本体の天井据付作業時に、例えば、コンジットケーブルを予め室内機本体に固定した場合、コンジットケーブルによって室内機本体の移動範囲が制限されてしまう。そのため、従来の空気調和装置では、先に室内機本体を天井に吊り下げてから、コンジットケーブルを室内機本体に固定する必要があった。したがって、作業者は室内機本体の吊り下げ作業の間、コンジット固定金具を手で押さえながら作業しなければならず、作業が煩雑となるため、特に高所または作業スペースの狭い環境下での作業効率が低下する問題があった。 However, in the conventional air conditioner, when the conduit cable is fixed to the indoor unit body in advance during the ceiling installation work of the indoor unit body, the movement range of the indoor unit body is limited by the conduit cable. Therefore, in the conventional air conditioner, it is necessary to first suspend the indoor unit main body from the ceiling and then fix the conduit cable to the indoor unit main body. Therefore, the operator must work while holding the conduit fixing bracket by hand during the hanging work of the indoor unit body, which complicates the work. Therefore, the work is particularly performed in a high place or an environment where the work space is narrow. There was a problem of reduced efficiency.
　そこで、本開示は、上述した課題を解決するためのものであり、天井据付作業を簡易化でき、作業効率の向上を図ることができる室内機および空気調和装置を提供することを目的とする。 Therefore, the present disclosure is for solving the above-mentioned problems, and an object of the present disclosure is to provide an indoor unit and an air conditioner capable of simplifying the ceiling installation work and improving the work efficiency.
　本開示に係る室内機は、室内機本体と、前記室内機本体内に収容され、電気部品を収納する電装品収納箱と、前記室内機本体の角部に設けられた据付部材と、を備え、一端が前記据付部材に固定され、他端が被取付部に固定された吊りボルトによって前記被取付部に設置される室内機であって、前記電装品収納箱に収納された前記電気部品に接続される電線と、前記電線を被覆してなるコンジットと、を有するコンジットケーブルと、前記コンジットケーブルの端部が取り付けられる固定部材と、を備え、前記固定部材は、開口部が形成された天面板と、前記天面板の前記開口部に設けられる保護部材と、前記天面板と連なって配置され、前記コンジットケーブルの端部が取り付けられる取付部が形成された側面板と、を有しており、前記固定部材は、前記吊りボルトを、前記天面板の開口部に貫通させ、前記保護部材に接触させた状態で前記吊りボルトに仮固定されるものである。 The indoor unit according to the present disclosure includes an indoor unit main body, an electrical component storage box housed in the indoor unit main body and storing electrical parts, and an installation member provided at a corner of the indoor unit main body. An indoor unit whose one end is fixed to the installation member and the other end is installed in the mounted portion by a hanging bolt fixed to the mounted portion, and is attached to the electric component housed in the electrical component storage box. A conduit cable having a connected electric wire and a conduit covering the electric wire, and a fixing member to which an end portion of the conduit cable is attached, and the fixing member is provided with an opening. It has a face plate, a protective member provided in the opening of the top plate, and a side plate which is arranged in series with the top plate and has a mounting portion on which an end portion of the conduit cable is attached. The fixing member is such that the hanging bolt is passed through the opening of the top plate and temporarily fixed to the hanging bolt in a state of being in contact with the protective member.
　また、本開示に係る空気調和装置は、上記の室内機と、室外機とを備え、前記室内機は、室内熱交換機を備え、前記室外機は、室外熱交換機と、圧縮機と、絞り装置と、を備え、前記室内熱交換機と前記室外熱交換機とが配管接続されて冷媒回路を構成するものである。 Further, the air conditioner according to the present disclosure includes the above-mentioned indoor unit and outdoor unit, the indoor unit includes an indoor heat exchanger, and the outdoor unit includes an outdoor heat exchanger, a compressor, and a drawing device. And, the indoor heat exchanger and the outdoor heat exchanger are connected by piping to form a refrigerant circuit.
　本開示によれば、室内機の天井据付作業時に、コンジットケーブルを取り付ける固定部材が、天面板に形成された開口部に吊りボルトを貫通させ、当該開口部に設けられた保護部材に接触させた状態で吊りボルトに仮固定される。したがって、吊りボルトに固定部材を仮固定した状態で室内機の天井据付作業を行うことができるため、従来のような作業者が手で固定部材を押さえながら作業する手間を省き、天井据付作業時における、特に高所または作業スペースの狭い環境下での作業を簡易化できる。かくして、天井据付作業を簡易化でき、作業効率の向上を図ることができる。 According to the present disclosure, during the ceiling installation work of the indoor unit, the fixing member for attaching the conduit cable penetrates the suspension bolt through the opening formed in the top plate and is brought into contact with the protective member provided in the opening. Temporarily fixed to the hanging bolt in the state. Therefore, since the ceiling installation work of the indoor unit can be performed with the fixing member temporarily fixed to the hanging bolt, it is possible to save the labor of the conventional operator while holding the fixing member by hand, and during the ceiling installation work. In particular, it is possible to simplify the work in a high place or in an environment where the work space is narrow. Thus, the ceiling installation work can be simplified and the work efficiency can be improved.
実施の形態１に係る室内機の外観を示す斜視図である。It is a perspective view which shows the appearance of the indoor unit which concerns on Embodiment 1. FIG. 図１の室内機本体を示す斜視図である。It is a perspective view which shows the indoor unit main body of FIG. 図２の室内機本体における固定金具の説明に供する斜視図である。It is a perspective view provided for the explanation of the fixing metal fitting in the indoor unit main body of FIG. 図３の固定金具の説明に供する分解斜視図である。It is an exploded perspective view provided for the description of the fixing metal fitting of FIG. 図２の室内機本体の据付作業の説明に供する分解斜視図である。FIG. 5 is an exploded perspective view for explaining the installation work of the indoor unit main body of FIG. 実施の形態２に係る空気調和装置の冷媒回路を示す模式図である。It is a schematic diagram which shows the refrigerant circuit of the air conditioner which concerns on Embodiment 2. FIG.
　以下、本開示に係る室内機および空気調和装置の実施の形態について、添付の図面を参照しながら説明する。なお、明細書全文および図面に示す構成要素の形態は、あくまで例示であってこれらの記載に限定されるものではない。すなわち、本開示は、請求の範囲および明細書全体から読み取ることのできる要旨または思想に反しない範囲で適宜変更可能である。また、そのような変更を伴う室内機および空気調和装置も本開示の技術思想に含まれる。さらに、各図において、同一の符号を付したものは、同一のまたはこれに相当するものであり、これは明細書の全文において共通している。 Hereinafter, embodiments of the indoor unit and the air conditioner according to the present disclosure will be described with reference to the attached drawings. The forms of the components shown in the full text of the specification and the drawings are merely examples and are not limited to these descriptions. That is, the present disclosure can be appropriately modified to the extent that it does not contradict the gist or idea that can be read from the scope of claims and the entire specification. In addition, indoor units and air conditioners with such changes are also included in the technical concept of the present disclosure. Further, in each figure, those having the same reference numerals are the same or equivalent thereof, which are common in the whole text of the specification.
　実施の形態１．
＜室内機１００の構成＞
　ここでは、図１および図２を用いて、実施の形態１に係る室内機の構成について説明する。図１は、実施の形態１に係る室内機１００の外観を示す斜視図である。図２は、図１の室内機本体１を示す斜視図である。本実施の形態１における室内機１００は、図示省略する冷媒配管により室外機と接続され、室外機とともに冷媒回路に冷媒を循環させて冷凍または空気調和等を行う空気調和装置を構成する。なお、本実施の形態１の室内機１００は、天井埋め込み型の室内機であり、以下では、その一例として一方向カセット型の室内機について説明する。 Embodiment 1.
<Structure of indoor unit 100>
Here, the configuration of the indoor unit according to the first embodiment will be described with reference to FIGS. 1 and 2. FIG. 1 is a perspective view showing the appearance of the indoor unit 100 according to the first embodiment. FIG. 2 is a perspective view showing the indoor unit main body 1 of FIG. The indoor unit 100 in the first embodiment is connected to the outdoor unit by a refrigerant pipe (not shown), and constitutes an air conditioning device that circulates the refrigerant in the refrigerant circuit together with the outdoor unit to perform freezing or air conditioning. The indoor unit 100 of the first embodiment is a ceiling-embedded indoor unit, and the unidirectional cassette type indoor unit will be described below as an example thereof.
　図１に示すように、本実施の形態１に係る室内機１００は、図示省略する室内送風機および室内熱交換器等を収容する矩形箱型の室内機本体１を有し、吊りボルト２を介して不図示の室内空間の天井内部に埋め込まれて設置されるものである。以下の説明においては、天井を上とし、天井から室内空間を見た方向を下として説明する。室内機本体１は、天井内部に設置された状態において、室内側となる下面が化粧パネル１ａによって覆われている。また、室内機本体１の角部周囲には、室内機本体１内に収容され、不図示の電気部品を収納する電装品収納箱１０が設けられている。さらに、室内機本体１の角部で、且つ、電装品収納箱１０の周囲には、コンジットケーブル２１の端部がナット２２ｂを介して取り付けられる固定部材である固定金具２０が設けられている。なお、詳細については後述するが、コンジットケーブル２１は、電装品収納箱１０に収納された電気部品に接続される電線１１（後述する図４参照）と、当該電線１１を被覆してなるコンジット２１ａ（後述する図４参照）と、を有する。 As shown in FIG. 1, the indoor unit 100 according to the first embodiment has a rectangular box-shaped indoor unit main body 1 for accommodating an indoor blower, an indoor heat exchanger, and the like (not shown), via a hanging bolt 2. It is installed by being embedded inside the ceiling of an indoor space (not shown). In the following description, the ceiling will be on the top and the direction in which the interior space is viewed from the ceiling will be on the bottom. When the indoor unit main body 1 is installed inside the ceiling, the lower surface on the indoor side is covered with the decorative panel 1a. Further, around the corners of the indoor unit main body 1, an electrical component storage box 10 is provided which is housed in the indoor unit main body 1 and stores electrical parts (not shown). Further, a fixing bracket 20 which is a fixing member to which the end of the conduit cable 21 is attached via the nut 22b is provided at the corner of the indoor unit main body 1 and around the electrical component storage box 10. Although the details will be described later, the conduit cable 21 is formed by covering the electric wire 11 (see FIG. 4 described later) connected to the electric component housed in the electrical component storage box 10 and the conduit 21a covering the electric wire 11. (See FIG. 4 described later).
　なお、電装品収納箱１０には図示しない端子台を設け、接続ケーブルが引き込まれているようにしてもよい。また、電装品収納箱１０は、国や地域によって、接続ケーブルの電線１１（強電電線）をコンジット２１ａに通し、コンジットケーブル２１を電装品収納箱１０に引き込む構造になっている。 A terminal block (not shown) may be provided in the electrical component storage box 10 so that the connection cable is pulled in. Further, the electrical component storage box 10 has a structure in which the electric wire 11 (high electric wire) of the connection cable is passed through the conduit 21a and the conduit cable 21 is pulled into the electrical component storage box 10 depending on the country or region.
　図２に示すように、室内機本体１の角部、すなわち四隅には、天井などに取り付けられている吊りボルト２と係合し、不図示のナットなどによって、当該室内機本体１を吊りボルト２に固定させるための据付部材である据付金具３が設けられている。つまり、室内機本体１は、不図示の室内空間の天井内部に埋め込まれて設置される際、据付金具３に吊りボルト２の一端が固定される。 As shown in FIG. 2, at the corners, that is, the four corners of the indoor unit main body 1, the indoor unit main body 1 is engaged with the hanging bolts 2 attached to the ceiling or the like, and the indoor unit main body 1 is suspended by a nut or the like (not shown). An installation fitting 3 which is an installation member for fixing to 2 is provided. That is, when the indoor unit main body 1 is embedded in the ceiling of an indoor space (not shown) and installed, one end of the hanging bolt 2 is fixed to the installation metal fitting 3.
　次に、図３および図４を用いて、固定金具２０について説明する。図３は、図２の室内機本体１における固定金具２０の説明に供する斜視図である。図４は、図３の固定金具２０の説明に供する分解斜視図である。 Next, the fixing bracket 20 will be described with reference to FIGS. 3 and 4. FIG. 3 is a perspective view for explaining the fixing bracket 20 in the indoor unit main body 1 of FIG. FIG. 4 is an exploded perspective view for explaining the fixing bracket 20 of FIG.
　図３および図４に示すように、固定金具２０は、室内機本体１の角部、例えば四隅で、且つ、電装品収納箱１０の周囲に設けられている。固定金具２０は、開口部である長穴２０ｂが形成された天面板２０ａと、天面板２０ａと連なって配置され、コンジットケーブル２１の端部が取り付けられる取付部２０ｄが形成された側面板と、を有している。また、固定金具２０は、天面板２０ａの長穴２０ｂに、保護部材としてのスリットが設けられたスポンジ状のインシュレーション２０ｃが貼り付けられている。インシュレーション２０ｃは、ネジの先端部などが他部材に干渉するのを防止するために部材の接続部分などに設けられる一般的な保護部材である。ここでは、スポンジ状の素材の特性を利用して吊りボルト２を柔軟に保持し、固定金具２０を仮固定するために利用されている。さらに、本実施の形態１の場合、固定金具２０は、天面板２０ａと側面板２０ｅとに連なって配置される正面板２０ｆを有している。すなわち、固定金具２０は、室内機本体１と対向する面側以外が、天面板２０ａと側面板２０ｅと正面板２０ｆとによって閉塞された直方体状をなす。換言すると、固定金具２０は、室内機本体１と対向する面側が開口された直方体状をなしている。側面板２０ｅの取付部２０ｄには、電装品収納箱１０に収納された電気部品に接続される電線１１と、当該電線１１を被覆してなるコンジット２１ａと、を有するコンジットケーブル２１の端部が、ボルト２２ａとナット２２ｂとを介して取り付けられる。 As shown in FIGS. 3 and 4, the fixing bracket 20 is provided at the corners of the indoor unit main body 1, for example, at the four corners and around the electrical component storage box 10. The fixing bracket 20 includes a top plate 20a in which an elongated hole 20b, which is an opening, is formed, a side plate in which a mounting portion 20d is formed so as to be connected to the top plate 20a and to which an end portion of the conduit cable 21 is attached. have. Further, the fixing bracket 20 has a sponge-like insulation 20c provided with a slit as a protective member attached to the elongated hole 20b of the top plate 20a. The insulation 20c is a general protective member provided at a connecting portion of a member or the like in order to prevent the tip of the screw or the like from interfering with another member. Here, the hanging bolt 2 is flexibly held by utilizing the characteristics of the sponge-like material, and is used for temporarily fixing the fixing bracket 20. Further, in the case of the first embodiment, the fixing bracket 20 has a front plate 20f arranged so as to be connected to the top plate 20a and the side plate 20e. That is, the fixing bracket 20 has a rectangular shape that is closed by the top plate 20a, the side plate 20e, and the front plate 20f, except for the surface side facing the indoor unit main body 1. In other words, the fixing bracket 20 has a rectangular parallelepiped shape in which the surface side facing the indoor unit main body 1 is opened. The mounting portion 20d of the side plate 20e has an end portion of a conduit cable 21 having an electric wire 11 connected to an electric component stored in the electrical component storage box 10 and a conduit 21a covering the electric wire 11. , Attached via bolts 22a and nuts 22b.
　次に、図５を用いて、このような固定金具２０によって吊りボルト２に仮固定しながら室内機１００を天井に設置する天井据付作業について説明する。図５は、図２の室内機本体１の据付作業の説明に供する分解斜視図である。 Next, with reference to FIG. 5, the ceiling installation work of installing the indoor unit 100 on the ceiling while temporarily fixing it to the hanging bolt 2 with such a fixing bracket 20 will be described. FIG. 5 is an exploded perspective view for explaining the installation work of the indoor unit main body 1 of FIG.
　図５に示すように、他端が不図示の室内空間の天井内部に埋め込まれて固定された吊りボルト２と、室内機本体１の据付金具３とを固定する。このとき、作業者は、固定金具２０の取付位置に配置される吊りボルト２に対して、固定金具２０を仮固定する。具体的に、固定金具２０の長穴２０ｂへと吊りボルト２を挿入させ、当該吊りボルト２をスリット２０ｃａを介してインシュレーション２０ｃに嵌め込ませることで、固定金具２０を吊りボルト２に仮固定させる。そして、この状態で室内機本体１の四隅の据付金具３に吊りボルト２を固定する。したがって、吊りボルト２に固定金具２０を仮固定した状態で室内機１００の天井据付作業を行うことができるため、従来のような作業者が手で固定部材を押さえながら作業する手間を省くことができる。 As shown in FIG. 5, the hanging bolt 2 whose other end is embedded and fixed inside the ceiling of the indoor space (not shown) and the installation bracket 3 of the indoor unit main body 1 are fixed. At this time, the operator temporarily fixes the fixing bracket 20 to the hanging bolt 2 arranged at the mounting position of the fixing bracket 20. Specifically, the fixing bracket 20 is temporarily fixed to the hanging bolt 2 by inserting the hanging bolt 2 into the elongated hole 20b of the fixing bracket 20 and fitting the hanging bolt 2 into the insulation 20c via the slit 20ca. .. Then, in this state, the hanging bolts 2 are fixed to the installation fittings 3 at the four corners of the indoor unit main body 1. Therefore, since the ceiling installation work of the indoor unit 100 can be performed with the fixing bracket 20 temporarily fixed to the hanging bolt 2, it is possible to save the labor of the conventional operator while holding the fixing member by hand. can.
＜実施の形態１の効果＞
　以上、説明したように、本実施の形態１に係る室内機１００によれば、室内機１００の天井据付作業時に、コンジットケーブル２１を取り付ける固定金具２０が、天面板２０ａに形成された長穴２０ｂに吊りボルト２を貫通させ、当該長穴２０ｂに設けられたインシュレーション２０ｃに接触させた状態で吊りボルト２に仮固定される。したがって、吊りボルト２に固定金具２０を仮固定した状態で室内機１００の天井据付作業を行うことができるため、従来のような作業者が手で固定金具２０を押さえながら作業する手間を省き、天井据付作業時における、特に高所または作業スペースの狭い環境下での作業を簡易化できる。かくして、本実施の形態１に係る室内機１００では、天井据付作業を簡易化でき、作業効率の向上を図ることができる。 <Effect of Embodiment 1>
As described above, according to the indoor unit 100 according to the first embodiment, when the indoor unit 100 is installed on the ceiling, the fixing bracket 20 for attaching the conduit cable 21 is a long hole 20b formed in the top plate 20a. The suspension bolt 2 is penetrated into the suspension bolt 2 and temporarily fixed to the suspension bolt 2 in a state of being in contact with the insulation 20c provided in the elongated hole 20b. Therefore, since the ceiling installation work of the indoor unit 100 can be performed with the fixing bracket 20 temporarily fixed to the hanging bolt 2, the conventional operator can save the trouble of holding the fixing bracket 20 by hand. It is possible to simplify the work during ceiling installation work, especially in a high place or in an environment where the work space is narrow. Thus, in the indoor unit 100 according to the first embodiment, the ceiling installation work can be simplified and the work efficiency can be improved.
　また、インシュレーション２０ｃにはスリット２０ｃａが形成されているため、固定金具２０を吊りボルト２に仮固定する際、当該吊りボルト２をインシュレーション２０ｃに嵌め込み易くすることができる。 Further, since the slit 20ca is formed in the insulation 20c, when the fixing bracket 20 is temporarily fixed to the suspension bolt 2, the suspension bolt 2 can be easily fitted into the insulation 20c.
　さらに、固定金具２０は、天面板２０ａが据付金具３から離れた状態でインシュレーション２０ｃによって吊りボルト２を挟み込み保持可能となっていてもよい。これにより、固定金具２０を室内機１００に固定する際に、誤って固定金具２０を手から離してしまった場合でも当該固定金具２０が吊りボルト２に挟み込まれて保持される。つまり、従来のように、高所作業において固定金具２０を固定する際に、誤って固定金具２０を手から離してしまった場合でも当該固定金具２０が仮固定されるため、当該固定金具２０を拾いに降りる必要をなくし、天井据付作業性が向上する。 Further, the fixing bracket 20 may be capable of sandwiching and holding the suspension bolt 2 by the insulation 20c in a state where the top plate 20a is separated from the mounting bracket 3. As a result, when the fixing bracket 20 is fixed to the indoor unit 100, even if the fixing bracket 20 is accidentally separated from the hand, the fixing bracket 20 is sandwiched and held by the hanging bolt 2. That is, as in the conventional case, when fixing the fixing bracket 20 in aerial work, even if the fixing bracket 20 is accidentally separated from the hand, the fixing bracket 20 is temporarily fixed, so that the fixing bracket 20 is temporarily fixed. Eliminates the need to pick up and improves ceiling installation workability.
　さらに、固定金具２０は、天面板２０ａの開口部が長穴２０ｂで形成され、吊りボルト２に対して長穴２０ｂの長手方向に沿って取り付けられるので、固定金具２０の保持位置や角度を適宜調整して保持でき、天井据付作業性が向上する。 Further, in the fixing bracket 20, the opening of the top plate 20a is formed by the elongated hole 20b, and the fixing bracket 20 is attached to the hanging bolt 2 along the longitudinal direction of the elongated hole 20b. It can be adjusted and held, improving ceiling installation workability.
　また、据付金具３には、吊りボルト２を挿入する切欠部３ａが形成されており、天面板２０ａの長穴２０ｂの長手方向と、切欠部３ａの切欠方向とが一致しているので、室内機本体１の天井据付作業時に、切欠部３ａを設けられた据付金具３と、固定金具２０に設けられた長穴２０ｂにより、室内機本体１の据付位置を適宜調整することが可能である。よって、室内機１００の据付作業性が向上する。 Further, the mounting bracket 3 is formed with a notch 3a into which the hanging bolt 2 is inserted, and the longitudinal direction of the elongated hole 20b of the top plate 20a coincides with the notch direction of the notch 3a. During the ceiling installation work of the machine body 1, the installation position of the indoor unit body 1 can be appropriately adjusted by the installation metal fitting 3 provided with the notch 3a and the elongated hole 20b provided in the fixing metal fitting 20. Therefore, the installation workability of the indoor unit 100 is improved.
　実施の形態２．
＜空気調和装置の冷媒回路について＞
　図６は、実施の形態２に係る空気調和装置の冷媒回路を示す模式図である。図６の空気調和装置は、室外機２００と、実施の形態１において説明した室内機１００とをガス冷媒配管３００および液冷媒配管４００により配管接続し、冷凍サイクルを構成する。室外機２００は、圧縮機２１０、四方弁２２０、室外熱交換器２３０および膨張弁２４０を有している。なお、室外機２００および室内機１００は、室外ユニットまたは室内ユニットと呼ばれるものでもよい。 Embodiment 2.
<About the refrigerant circuit of the air conditioner>
FIG. 6 is a schematic view showing a refrigerant circuit of the air conditioner according to the second embodiment. In the air conditioner of FIG. 6, the outdoor unit 200 and the indoor unit 100 described in the first embodiment are connected by a gas refrigerant pipe 300 and a liquid refrigerant pipe 400 to form a refrigeration cycle. The outdoor unit 200 includes a compressor 210, a four-way valve 220, an outdoor heat exchanger 230, and an expansion valve 240. The outdoor unit 200 and the indoor unit 100 may be called an outdoor unit or an indoor unit.
　圧縮機２１０は、吸入した冷媒を圧縮して吐出する。ここで、特に限定するものではないが、圧縮機２１０は例えばインバータ回路により、運転周波数を任意に変化させ、圧縮機２１０の容量を変化させるもの等でよい。ここで、圧縮機２１０の容量とは、単位時間あたりの冷媒を送り出す量を示す。四方弁２２０は、例えば冷房運転時と暖房運転時とによって冷媒の流れを切り換えるための弁である。 The compressor 210 compresses and discharges the sucked refrigerant. Here, although not particularly limited, the compressor 210 may be one that arbitrarily changes the operating frequency and changes the capacity of the compressor 210 by, for example, an inverter circuit. Here, the capacity of the compressor 210 indicates the amount of refrigerant delivered per unit time. The four-way valve 220 is a valve for switching the flow of the refrigerant between, for example, a cooling operation and a heating operation.
　室外熱交換器２３０は、冷媒と室外の空気との熱交換を行う。例えば、暖房運転時においては蒸発器として機能し、冷媒を蒸発させ、気化させる。また、冷房運転時においては凝縮器として機能し、冷媒を凝縮して液化させる。 The outdoor heat exchanger 230 exchanges heat between the refrigerant and the outdoor air. For example, during heating operation, it functions as an evaporator to evaporate and vaporize the refrigerant. In addition, it functions as a condenser during cooling operation to condense and liquefy the refrigerant.
　膨張弁２４０は冷媒を減圧して膨張させるものであり、絞り装置および流量制御手段等から構成される。例えば電子式膨張弁で構成した場合には、図示しない制御手段等の指示により開度調整を行う。 The expansion valve 240 decompresses and expands the refrigerant, and is composed of a throttle device, a flow rate control means, and the like. For example, in the case of an electronic expansion valve, the opening degree is adjusted according to an instruction from a control means (not shown) or the like.
　室内機１００は、筐体としての室内機本体１の内部に室内熱交換器１１０を収容し、室内空間の天井に埋め込まれた吊りボルト２に室内機本体１の角部近傍に設けられた据付金具３をナット等で挟み込むことで天井面に据え付けられる。室内熱交換器１１０は、例えば室内空間の空気と冷媒との熱交換を行う。室内熱交換器１１０は、暖房運転時において凝縮器として機能し、冷媒を凝縮して液化させる。また、室内熱交換器１１０は、冷房運転時において蒸発器として機能し、冷媒を蒸発させ、気化させる。 The indoor unit 100 accommodates the indoor heat exchanger 110 inside the indoor unit main body 1 as a housing, and is installed on a hanging bolt 2 embedded in the ceiling of the indoor space near the corner of the indoor unit main body 1. It can be installed on the ceiling surface by sandwiching the metal fitting 3 with nuts or the like. The indoor heat exchanger 110 exchanges heat between, for example, the air in the indoor space and the refrigerant. The indoor heat exchanger 110 functions as a condenser during the heating operation to condense and liquefy the refrigerant. Further, the indoor heat exchanger 110 functions as an evaporator during the cooling operation to evaporate and vaporize the refrigerant.
＜空気調和装置の冷房および暖房運転の動作例＞
　次に、空気調和装置における冷房運転について冷媒の流れに基づいて説明する。冷房運転においては、実線で示す接続関係となるように四方弁２２０を切り替える。圧縮機２１０により圧縮されて吐出した高温、高圧のガス冷媒は、四方弁２２０を通過し、室外熱交換器２３０に流入する。そして、室外熱交換器２３０内を通過して、室外の空気と熱交換することで凝縮、液化した冷媒である液冷媒は、膨張弁２４０へ流入する。膨張弁２４０で減圧されて気液二相状態となった冷媒は室外機２００から流出する。 <Operation example of cooling and heating operation of air conditioner>
Next, the cooling operation in the air conditioner will be described based on the flow of the refrigerant. In the cooling operation, the four-way valve 220 is switched so as to have a connection relationship shown by a solid line. The high-temperature, high-pressure gas refrigerant compressed and discharged by the compressor 210 passes through the four-way valve 220 and flows into the outdoor heat exchanger 230. Then, the liquid refrigerant, which is a refrigerant condensed and liquefied by passing through the outdoor heat exchanger 230 and exchanging heat with the outdoor air, flows into the expansion valve 240. The refrigerant that has been decompressed by the expansion valve 240 and is in a gas-liquid two-phase state flows out from the outdoor unit 200.
　室外機２００を流出した気液二相冷媒は、液冷媒配管４００を通過して室内機１００に流入し、室内熱交換器１１０を通過する。そして、例えば室内空間の空気と熱交換することで蒸発、ガス化した冷媒であるガス冷媒は、室内機１００から流出する。 The gas-liquid two-phase refrigerant that has flowed out of the outdoor unit 200 passes through the liquid refrigerant pipe 400, flows into the indoor unit 100, and passes through the indoor heat exchanger 110. Then, for example, the gas refrigerant, which is a refrigerant evaporated and gasified by exchanging heat with the air in the indoor space, flows out from the indoor unit 100.
　室内機１００から流出したガス冷媒はガス冷媒配管３００を通過して室外機２００に流入する。そして、四方弁２２０を通過して再度圧縮機２１０に吸入される。以上のようにして空気調和装置の冷媒が循環し、空気調和による冷房を行う。 The gas refrigerant flowing out of the indoor unit 100 passes through the gas refrigerant pipe 300 and flows into the outdoor unit 200. Then, it passes through the four-way valve 220 and is sucked into the compressor 210 again. As described above, the refrigerant of the air conditioner circulates and cools by air conditioning.
　次に、暖房運転について冷媒の流れに基づいて説明する。暖房運転においては、点線で示す接続関係となるように四方弁２２０を切り替える。圧縮機２１０により圧縮されて吐出した高温、高圧のガス冷媒は、四方弁２２０を通過して室外機２００から流出する。室外機２００を流出したガス冷媒は、ガス冷媒配管３００を通過して室内機１００に流入する。そして、室内熱交換器１１０を通過中に、例えば室内空間の空気と熱交換することで凝縮、液化した冷媒は室内機１００から流出する。 Next, the heating operation will be described based on the flow of the refrigerant. In the heating operation, the four-way valve 220 is switched so as to have a connection relationship shown by a dotted line. The high-temperature, high-pressure gas refrigerant compressed and discharged by the compressor 210 passes through the four-way valve 220 and flows out from the outdoor unit 200. The gas refrigerant flowing out of the outdoor unit 200 passes through the gas refrigerant pipe 300 and flows into the indoor unit 100. Then, while passing through the indoor heat exchanger 110, for example, the condensed and liquefied refrigerant by heat exchange with the air in the indoor space flows out from the indoor unit 100.
　室内機１００から流出した冷媒は液冷媒配管４００を通過して室外機２００に流入する。そして、膨張弁２４０で減圧されて気液二相状態となった冷媒は室外熱交換器２３０に流入する。そして、室外熱交換器２３０内を通過して、室外の空気と熱交換することで蒸発、ガス化した冷媒である液冷媒は、四方弁２２０を通過して再度圧縮機２１０に吸入される。以上のようにして空気調和装置の冷媒が循環し、空気調和による暖房を行う。 The refrigerant flowing out of the indoor unit 100 passes through the liquid refrigerant pipe 400 and flows into the outdoor unit 200. Then, the refrigerant that has been decompressed by the expansion valve 240 and is in a gas-liquid two-phase state flows into the outdoor heat exchanger 230. Then, the liquid refrigerant, which is a refrigerant that has passed through the outdoor heat exchanger 230 and exchanged heat with the outdoor air to evaporate and gasify, passes through the four-way valve 220 and is sucked into the compressor 210 again. As described above, the refrigerant of the air conditioner circulates to perform heating by air conditioning.
　上述した実施の形態２では、一方向に空気を吹き出す一方向カセット形となる天井埋め込み式の室内機１００について説明したが、例えば、二方向、三方向、または、四方向等に空気を吹き出す室内機１００についても適用することができる。 In the second embodiment described above, the ceiling-embedded indoor unit 100 having a unidirectional cassette type that blows air in one direction has been described. For example, a room that blows air in two directions, three directions, four directions, or the like. It can also be applied to the machine 100.
＜実施の形態２における効果＞
　以上、説明した本実施の形態２に係る空気調和装置は、室内機１００の室内機本体１の角部に、電装品収納箱１０へと接続されるコンジットケーブル２１を取り付ける固定金具２０が設けられている。そして、室内機１００の天井据付作業時に、コンジットケーブル２１を取り付ける固定金具２０が、天面板２０ａに形成された長穴２０ｂに吊りボルト２を貫通させ、当該長穴２０ｂに設けられたインシュレーション２０ｃに接触させた状態で吊りボルト２に仮固定される。したがって、吊りボルト２に固定金具２０を仮固定した状態で室内機１００の天井据付作業を行うことができるため、従来のような作業者が手で固定金具２０を押さえながら作業する手間を省き、天井据付作業時における、特に高所または作業スペースの狭い環境下での作業を簡易化できる。かくして、本実施の形態１に係る室内機１００では、天井据付作業を簡易化でき、作業効率の向上を図ることができる。 <Effect in Embodiment 2>
In the air conditioner according to the second embodiment described above, a fixing bracket 20 for attaching a conduit cable 21 connected to the electrical component storage box 10 is provided at a corner of the indoor unit main body 1 of the indoor unit 100. ing. Then, during the ceiling installation work of the indoor unit 100, the fixing bracket 20 for attaching the conduit cable 21 penetrates the suspension bolt 2 through the elongated hole 20b formed in the top plate 20a, and the insulation 20c provided in the elongated hole 20b. It is temporarily fixed to the hanging bolt 2 in a state of being in contact with the hanging bolt 2. Therefore, since the ceiling installation work of the indoor unit 100 can be performed with the fixing bracket 20 temporarily fixed to the hanging bolt 2, the conventional operator can save the trouble of holding the fixing bracket 20 by hand. It is possible to simplify the work during ceiling installation work, especially in a high place or in an environment where the work space is narrow. Thus, in the indoor unit 100 according to the first embodiment, the ceiling installation work can be simplified and the work efficiency can be improved.
　１　室内機本体、１ａ　化粧パネル、２　吊りボルト、３　据付金具、３ａ　切欠部、１０　電装品収納箱、１１　電線、２０　固定金具、２０ａ　天面板、２０ｂ　長穴、２０ｃ　インシュレーション、２０ｃａ　スリット、２０ｄ　取付部、２０ｅ　側面板、２０ｆ　正面板、２１　コンジットケーブル、２１ａ　コンジット、２２ａ　ボルト、２２ｂ　ナット、１００　室内機、１１０　室内熱交換器、２００　室外機、２１０　圧縮機、２２０　四方弁、２３０　室外熱交換器、２４０　膨張弁、３００　ガス冷媒配管、４００　液冷媒配管。 1 Indoor unit body, 1a Decorative panel, 2 Hanging bolt, 3 Installation bracket, 3a Notch, 10 Electrical equipment storage box, 11 Electric wire, 20 Fixing bracket, 20a Top plate, 20b long hole, 20c insulation, 20ca slit, 20d Mounting part, 20e side plate, 20f front plate, 21 refrigerant cable, 21a refrigerant, 22a bolt, 22b nut, 100 indoor unit, 110 indoor heat exchanger, 200 outdoor unit, 210 compressor, 220 four-way valve, 230 outdoor heat exchange Vessel, 240 expansion valve, 300 gas refrigerant piping, 400 liquid refrigerant piping.

Claims (6)

  1. 　室内機本体と、前記室内機本体内に収容され、電気部品を収納する電装品収納箱と、前記室内機本体の角部に設けられた据付部材と、を備え、一端が前記据付部材に固定され、他端が被取付部に固定された吊りボルトによって前記被取付部に設置される室内機であって、
    　前記電装品収納箱に収納された前記電気部品に接続される電線と、
    　前記電線を被覆してなるコンジットと、を有するコンジットケーブルと、
    　前記コンジットケーブルの端部が取り付けられる固定部材と、を備え、
    　前記固定部材は、
    　開口部が形成された天面板と、
    　前記天面板の前記開口部に設けられる保護部材と、
    　前記天面板と連なって配置され、前記コンジットケーブルの端部が取り付けられる取付部が形成された側面板と、を有しており、
    　前記固定部材は、
    　前記吊りボルトを、前記天面板の開口部に貫通させ、前記保護部材に接触させた状態で前記吊りボルトに仮固定される、室内機。     It is provided with an indoor unit main body, an electrical component storage box housed in the indoor unit main body and storing electrical parts, and an installation member provided at a corner of the indoor unit main body, and one end thereof is fixed to the installation member. An indoor unit whose other end is installed in the mounted portion by a hanging bolt fixed to the mounted portion.
    An electric wire connected to the electric component stored in the electrical component storage box, and
    A conduit cable having a conduit covering the electric wire, and a conduit cable having the conduit.
    A fixing member to which the end of the conduit cable is attached is provided.
    The fixing member is
    The top plate with the opening and
    A protective member provided in the opening of the top plate and
    It has a side plate which is arranged in series with the top plate and has a mounting portion formed to which an end portion of the conduit cable is attached.
    The fixing member is
    An indoor unit in which the hanging bolt is passed through an opening of the top plate and temporarily fixed to the hanging bolt in a state of being in contact with the protective member.
  2. 　前記保護部材は、スリットが形成されており、
    　前記吊りボルトは、前記スリットに接触した状態で固定される、請求項１に記載の室内機。     The protective member has a slit formed therein.
    The indoor unit according to claim 1, wherein the hanging bolt is fixed in contact with the slit.
  3. 　前記固定部材は、前記天面板が前記据付部材から離れた状態で前記保護部材によって前記吊りボルトを挟み込み保持可能である、請求項１または２に記載の室内機。 The indoor unit according to claim 1 or 2, wherein the fixing member can hold the hanging bolt by sandwiching it with the protective member while the top plate is separated from the installation member.
  4. 　前記天面板の前記開口部は長穴で形成され、前記吊りボルトが前記長穴の長手方向に沿って取り付けられる、請求項１～３のいずれか一項に記載の室内機。 The indoor unit according to any one of claims 1 to 3, wherein the opening of the top plate is formed of an elongated hole, and the hanging bolt is attached along the longitudinal direction of the elongated hole.
  5. 　前記据付部材には、前記吊りボルトを挿入する切欠部が形成されており、
    　前記開口部の長穴の長手方向と、前記切欠部の切欠方向とが一致している、請求項４に記載の室内機。     The installation member is formed with a notch for inserting the suspension bolt.
    The indoor unit according to claim 4, wherein the longitudinal direction of the elongated hole of the opening and the notch direction of the notch coincide with each other.
  6. 　請求項１～５のいずれか一項に記載の室内機と、室外機とを備え、
    　前記室内機は、室内熱交換機を備え、
    　前記室外機は、室外熱交換機と、圧縮機と、絞り装置と、を備え、
    　前記室内熱交換機と前記室外熱交換機とが配管接続されて冷媒回路を構成する、空気調和装置。     The indoor unit and the outdoor unit according to any one of claims 1 to 5 are provided.
    The indoor unit includes an indoor heat exchanger.
    The outdoor unit includes an outdoor heat exchanger, a compressor, and a throttle device.
    An air conditioner in which the indoor heat exchanger and the outdoor heat exchanger are connected by piping to form a refrigerant circuit.
PCT/JP2020/008031 2020-02-27 2020-02-27 Indoor unit and air-conditioning device WO2021171483A1 (en)

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02110221A (en) * 1988-10-17 1990-04-23 Sanyo Electric Co Ltd Air conditioner
JPH05113229A (en) * 1991-10-21 1993-05-07 Sanyo Electric Co Ltd Air conditioner
JPH08152191A (en) * 1994-11-30 1996-06-11 Sanyo Electric Co Ltd Installation device for air conditioner
JP2000249364A (en) * 1999-02-25 2000-09-12 Sanyo Electric Co Ltd Built-in type air conditioner
JP2003120953A (en) * 2001-10-12 2003-04-23 Sanyo Electric Co Ltd Ceiling built-in air conditioner
JP2011202925A (en) * 2010-03-26 2011-10-13 Toshiba Carrier Corp Indoor unit of air conditioner
JP2013024455A (en) * 2011-07-19 2013-02-04 Daikin Industries Ltd Electric item box of air conditioner

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02110221A (en) * 1988-10-17 1990-04-23 Sanyo Electric Co Ltd Air conditioner
JPH05113229A (en) * 1991-10-21 1993-05-07 Sanyo Electric Co Ltd Air conditioner
JPH08152191A (en) * 1994-11-30 1996-06-11 Sanyo Electric Co Ltd Installation device for air conditioner
JP2000249364A (en) * 1999-02-25 2000-09-12 Sanyo Electric Co Ltd Built-in type air conditioner
JP2003120953A (en) * 2001-10-12 2003-04-23 Sanyo Electric Co Ltd Ceiling built-in air conditioner
JP2011202925A (en) * 2010-03-26 2011-10-13 Toshiba Carrier Corp Indoor unit of air conditioner
JP2013024455A (en) * 2011-07-19 2013-02-04 Daikin Industries Ltd Electric item box of air conditioner

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