JPWO2019030796A1 - Indoor unit of air conditioner, air conditioner, and method of installing indoor unit of air conditioner - Google Patents

Indoor unit of air conditioner, air conditioner, and method of installing indoor unit of air conditioner Download PDF

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JPWO2019030796A1
JPWO2019030796A1 JP2019535454A JP2019535454A JPWO2019030796A1 JP WO2019030796 A1 JPWO2019030796 A1 JP WO2019030796A1 JP 2019535454 A JP2019535454 A JP 2019535454A JP 2019535454 A JP2019535454 A JP 2019535454A JP WO2019030796 A1 JPWO2019030796 A1 JP WO2019030796A1
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housing
indoor unit
detection unit
refrigerant detection
air
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JP6800339B2 (en
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隼治 植田
隼治 植田
慎吾 岩月
慎吾 岩月
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Mitsubishi Electric Corp
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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
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/20—Casings or covers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F11/00—Control or safety arrangements
    • F24F11/30—Control or safety arrangements for purposes related to the operation of the system, e.g. for safety or monitoring
    • F24F11/32—Responding to malfunctions or emergencies
    • F24F11/36—Responding to malfunctions or emergencies to leakage of heat-exchange fluid
    • 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
    • F24F1/0018—Indoor units, e.g. fan coil units characterised by fans
    • 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
    • F24F1/005—Indoor units, e.g. fan coil units characterised by mounting arrangements mounted on the floor; standing on the floor

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Air Conditioning Control Device (AREA)
  • Air Filters, Heat-Exchange Apparatuses, And Housings Of Air-Conditioning Units (AREA)

Abstract

空気調和装置の室内機は、室内熱交換器と送風機とを筐体の内部に備える空気調和装置の室内機であって、筐体から取り外し可能な冷媒検知部を備え、冷媒検知部は、筐体の内部に取り付けられる状態と、筐体の下方かつ外方に取り付けられる状態と、を選択自在に配置される。The indoor unit of the air conditioner is an indoor unit of an air conditioner that includes an indoor heat exchanger and a blower inside a housing, and includes a refrigerant detection unit that can be removed from the housing. A state of being attached to the inside of the body and a state of being attached to the lower side and the outer side of the housing are selectably arranged.

Description

本発明は、微燃性冷媒の漏洩を検知する冷媒検知部を備える空気調和装置の室内機、空気調和装置および空気調和装置の室内機の設置方法に関する。   The present invention relates to an air conditioner indoor unit, an air conditioner, and an air conditioner indoor unit installation method that include a refrigerant detection unit that detects leakage of a slightly flammable refrigerant.

微燃性冷媒を使用する空気調和装置では、微燃性冷媒の漏洩が発生した場合に室内冷媒濃度が規定濃度を超える場合が多い。このため、微燃性冷媒の漏洩時に冷媒の漏洩を検知しなければならない（たとえば、特許文献１参照）。   In an air conditioner using a slightly flammable refrigerant, the indoor refrigerant concentration often exceeds a specified concentration when leakage of the slightly flammable refrigerant occurs. For this reason, when the slightly flammable refrigerant leaks, the leakage of the refrigerant must be detected (for example, see Patent Document 1).

国際公開第２０１６／００９６６７号WO 2016/009667

微燃性冷媒の漏洩を検知するためには、床置き型の空気調和装置の室内機に冷媒検知部を設置する必要がある。しかし、この室内機が壁掛け型などとして高い位置に設置された場合には、冷媒検知部が室内機の内部の下部に設置されていても、空気より重い微燃性冷媒が留まり易い床面との距離が離れ、漏洩した冷媒が検知できない課題がある。   In order to detect the leakage of the slightly flammable refrigerant, it is necessary to install the refrigerant detection unit in the indoor unit of the floor-mounted air conditioner. However, when this indoor unit is installed at a high position such as a wall-mounted type, even if the refrigerant detection unit is installed at the lower portion inside the indoor unit, the floor surface where the slightly flammable refrigerant heavier than air is likely to stay is provided. There is a problem that the leaked refrigerant cannot be detected because the distance is too long.

本発明は、空気調和装置の室内機が床面から離れた高い位置に設置されても、冷媒検知部が漏洩した冷媒を検知できる空気調和装置の室内機、空気調和装置および空気調和装置の室内機の設置方法を提供することを目的とする。   The present invention relates to an air conditioner indoor unit, an air conditioner, and an air conditioner indoor unit that can detect a leaked refrigerant even when the indoor unit of the air conditioner is installed at a high position away from the floor. The purpose is to provide a method of installing the machine.

本発明に係る空気調和装置の室内機は、室内熱交換器と送風機とを筐体の内部に備える空気調和装置の室内機であって、前記筐体から取り外し可能な冷媒検知部を備え、前記冷媒検知部は、前記筐体の内部に取り付けられる状態と、前記筐体の下方かつ外方に取り付けられる状態と、を選択自在に配置されるものである。   The indoor unit of the air conditioner according to the present invention is an indoor unit of an air conditioner that includes an indoor heat exchanger and a blower inside a housing, and includes a refrigerant detection unit that can be removed from the housing. The refrigerant detection unit is disposed so as to be freely selectable between a state in which the refrigerant detection unit is mounted inside the housing and a state in which the refrigerant detection unit is mounted below and outside the housing.

本発明に係る空気調和装置は、上記の空気調和装置の室内機を備えるものである。   An air conditioner according to the present invention includes the indoor unit of the above air conditioner.

本発明に係る空気調和装置の室内機の設置方法は、室内機が床置き状態として、冷媒検知部が筐体の下部空間内に取り付けられ、複数の脚部が前記筐体に取り付けられて前記筐体を下方から支持し、前記筐体の下面に設けられる吸込開口部から前記筐体の下方の空気が吸い込まれる第１形態と、前記室内機が前記床置き状態として、前記冷媒検知部が前記筐体の前記下部空間内に取り付けられ、前記複数の脚部が前記筐体から取り外され、前記吸込開口部が床面に接地され、下部側壁部が前記筐体から取り外されて前記筐体の下部側方の空気が吸い込まれる第２形態と、前記室内機が壁掛け状態として、前記冷媒検知部が前記複数の脚部のうちの１つの脚部によって前記筐体の下方かつ外方に取り付けられ、前記吸込開口部から前記筐体の下方の空気が吸い込まれる第３形態と、を有し、前記第１形態と前記第２形態と前記第３形態とを選択自在に設置されるものである。   In the method for installing an indoor unit of an air conditioner according to the present invention, the indoor unit is placed on the floor, the refrigerant detection unit is mounted in a lower space of the housing, and a plurality of legs are mounted on the housing. A first mode in which the housing is supported from below and air below the housing is sucked from a suction opening provided in the lower surface of the housing, and the indoor unit is placed on the floor, and the refrigerant detection unit is The housing is mounted in the lower space of the housing, the plurality of legs are removed from the housing, the suction opening is grounded to the floor, and the lower side wall is removed from the housing. A second mode in which the air on the lower side is sucked, and the refrigerant detection unit is mounted below and outside the housing by one of the plurality of legs while the indoor unit is in a wall-mounted state. From the suction opening to the bottom of the housing. Has the third embodiment air is drawn, a is the said first embodiment second embodiment and the third embodiment shall be selected freely provided.

本発明に係る空気調和装置の室内機、空気調和装置および空気調和装置の室内機の設置方法によれば、冷媒検知部は、筐体の内部に取り付けられる状態と、筐体の下方かつ外方に取り付けられる状態と、を選択自在に配置される。このため、空気調和装置の室内機が床面から離れた高い位置に設置されても、冷媒検知部は、筐体の下方かつ外方に取り付けられる状態に変更され、漏洩した冷媒濃度が高くなる床面付近に近づけて配置できる。したがって、空気調和装置の室内機が床面から離れた高い位置に設置されても、冷媒検知部が漏洩した冷媒を検知できる。   According to the indoor unit of the air conditioner, the air conditioner, and the method of installing the indoor unit of the air conditioner according to the present invention, the refrigerant detection unit is mounted inside the housing, and is positioned below and outside the housing. And a state in which it can be attached to the camera. For this reason, even if the indoor unit of the air conditioner is installed at a high position away from the floor, the refrigerant detection unit is changed to a state of being attached below and outside the housing, and the leaked refrigerant concentration increases. It can be placed close to the floor. Therefore, even if the indoor unit of the air conditioner is installed at a high position away from the floor, the refrigerant detection unit can detect the leaked refrigerant.

本発明の実施の形態１に係る空気調和装置を示す概略構成図である。1 is a schematic configuration diagram illustrating an air conditioner according to Embodiment 1 of the present invention. 本発明の実施の形態１に係る空気調和装置の室内機における第１形態での外観を示す斜視図である。FIG. 3 is a perspective view illustrating an appearance of the indoor unit of the air-conditioning apparatus according to Embodiment 1 of the present invention in a first mode. 本発明の実施の形態１に係る空気調和装置の室内機における内部を示す斜視図である。It is a perspective view which shows the inside in the indoor unit of the air conditioner which concerns on Embodiment 1 of this invention. 本発明の実施の形態１に係る空気調和装置の室内機における内部を機械室の通る前後縦断面で示す断面図である。It is sectional drawing which shows the inside of the indoor unit of the air conditioner which concerns on Embodiment 1 of this invention by the front-back longitudinal cross section which a machine room passes. 本発明の実施の形態１に係る空気調和装置の室内機における内部を熱交換器室の通る前後縦断面で示す断面図である。It is sectional drawing which shows the inside of the indoor unit of the air conditioner which concerns on Embodiment 1 of this invention by the front-back longitudinal cross section which a heat exchanger room passes. 本発明の実施の形態１に係る空気調和装置の室内機における内部を左右縦断面で示す断面図である。FIG. 2 is a cross-sectional view showing the inside of the indoor unit of the air-conditioning apparatus according to Embodiment 1 of the present invention in a left-right vertical cross-section. 本発明の実施の形態１に係る冷媒検知部における外観を示す斜視図である。FIG. 2 is a perspective view illustrating an appearance of a refrigerant detection unit according to Embodiment 1 of the present invention. 本発明の実施の形態１に係る冷媒検知部における内部を示す斜視図である。FIG. 3 is a perspective view showing the inside of the refrigerant detection unit according to Embodiment 1 of the present invention. 本発明の実施の形態１に係る空気調和装置の室内機における第２形態での外観を示す正面図である。FIG. 3 is a front view illustrating an appearance of the indoor unit of the air-conditioning apparatus according to Embodiment 1 of the present invention in a second mode. 本発明の実施の形態１に係る空気調和装置の室内機における第３形態での外観を示す正面図である。It is a front view which shows the external appearance in the 3rd form in the indoor unit of the air conditioner which concerns on Embodiment 1 of this invention.

以下、図面に基づいて本発明の実施の形態について説明する。なお、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。さらに、明細書全文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。   Hereinafter, embodiments of the present invention will be described with reference to the drawings. In each of the drawings, the same reference numerals denote the same or corresponding components, which are common throughout the entire specification. Further, the forms of the components shown in the entire text of the specification are merely examples, and the present invention is not limited to these descriptions.

実施の形態１．
＜空気調和装置１００の構成＞
図１は、本発明の実施の形態１に係る空気調和装置１００を示す概略構成図である。図１に示すように、空気調和装置１００は、室外機８と室内機１０とを配管によって接続されて構成される。Embodiment 1 FIG.
<Configuration of air conditioner 100>
FIG. 1 is a schematic configuration diagram showing an air conditioner 100 according to Embodiment 1 of the present invention. As shown in FIG. 1, the air conditioner 100 is configured by connecting an outdoor unit 8 and an indoor unit 10 by piping.

室外機８と室内機１０とを接続する配管内には、熱の授受を行うための冷媒が充填される。冷媒は、室外機８と室内機１０との間を循環することにより、室内機１０の配置される室内空間に対して冷房または暖房を実施できる。冷媒の種類としては、空気より重い微燃性冷媒などが例示できる。   A refrigerant for transferring heat is filled in a pipe connecting the outdoor unit 8 and the indoor unit 10. By circulating the refrigerant between the outdoor unit 8 and the indoor unit 10, cooling or heating can be performed on the indoor space where the indoor unit 10 is arranged. Examples of the type of the refrigerant include a slightly flammable refrigerant that is heavier than air.

室外機８は、圧縮機１と、室外熱交換器３と、膨張弁４と、四方弁２と、室外送風ファン６と、を備える。室内機１０は、室内熱交換器５と、室内用の送風機であるシロッコファン７と、を備える。   The outdoor unit 8 includes the compressor 1, the outdoor heat exchanger 3, the expansion valve 4, the four-way valve 2, and the outdoor blower fan 6. The indoor unit 10 includes an indoor heat exchanger 5 and a sirocco fan 7 that is an indoor blower.

＜空気調和装置１００の室内機１０の構成＞
図２は、本発明の実施の形態１に係る空気調和装置１００の室内機１０における第１形態での外観を示す斜視図である。図３は、本発明の実施の形態１に係る空気調和装置１００の室内機１０における内部を示す斜視図である。図４は、本発明の実施の形態１に係る空気調和装置１００の室内機１０における内部を機械室２０の通る前後縦断面で示す断面図である。図５は、本発明の実施の形態１に係る空気調和装置１００の室内機１０における内部を熱交換器室２４の通る前後縦断面で示す断面図である。図６は、本発明の実施の形態１に係る空気調和装置１００の室内機１０における内部を左右縦断面で示す断面図である。<Configuration of indoor unit 10 of air conditioner 100>
FIG. 2 is a perspective view showing an appearance of the indoor unit 10 of the air conditioner 100 according to Embodiment 1 of the present invention in a first mode. FIG. 3 is a perspective view showing the inside of the indoor unit 10 of the air-conditioning apparatus 100 according to Embodiment 1 of the present invention. FIG. 4 is a cross-sectional view showing the inside of indoor unit 10 of air-conditioning apparatus 100 according to Embodiment 1 of the present invention in a longitudinal cross-section before and after machine room 20 passes. FIG. 5 is a cross-sectional view showing the interior of indoor unit 10 of air-conditioning apparatus 100 according to Embodiment 1 of the present invention in a longitudinal cross-section before and after heat exchanger room 24 passes. FIG. 6 is a cross-sectional view showing the inside of indoor unit 10 of air-conditioning apparatus 100 according to Embodiment 1 of the present invention in a left-right vertical section.

図２〜図６に示すように、空気調和装置１００の室内機１０は、室内の床面に接地されて取り付けられる床置き型室内機である。また、室内機１０は、後述のように床置き状態だけでなく、壁掛け状態で用いることもできる。後述にて、室内機１０の設置状態を第１形態、第２形態および第３形態と称してそれぞれ説明する。   As shown in FIGS. 2 to 6, the indoor unit 10 of the air-conditioning apparatus 100 is a floor-standing indoor unit that is attached to a floor of a room by grounding. The indoor unit 10 can be used not only on the floor as described later but also on a wall. Hereinafter, the installation state of the indoor unit 10 will be described as a first mode, a second mode, and a third mode, respectively.

図２に示すように、室内機１０は、横長の直方体形状の筐体１１を備える。筐体１１の左右側面の下部には、１対の脚部１２ａ、１２ｂを備える。１対の脚部１２ａ、１２ｂは、筐体１１に取り外し可能である。図２では、１対の脚部１２ａ、１２ｂは、室内機１０が床置き状態であり、筐体１１に螺子止めされて取り付けられ、筐体１１を下方から支持する状態である。１対の脚部１２ａ、１２ｂに支持された筐体１１は、筐体１１の下面と床面との間に隙間を確保する。なお、１対の脚部１２ａ、１２ｂは、３つ以上の脚部であっても良い。   As shown in FIG. 2, the indoor unit 10 includes a horizontally long rectangular parallelepiped housing 11. The lower part of the left and right side surfaces of the housing 11 is provided with a pair of legs 12a and 12b. The pair of legs 12a, 12b is detachable from the housing 11. In FIG. 2, the pair of legs 12 a and 12 b is in a state where the indoor unit 10 is placed on the floor, attached to the housing 11 by being screwed, and supporting the housing 11 from below. The housing 11 supported by the pair of legs 12a and 12b secures a gap between the lower surface of the housing 11 and the floor. Note that the pair of legs 12a and 12b may be three or more legs.

図２に示す筐体１１を構成する側壁部のうち前方側の下部側壁部１３は、筐体１１の下部空間１５を覆うとともに筐体１１に対して取り外し可能である。   The lower side wall portion 13 on the front side of the side wall portions constituting the housing 11 shown in FIG. 2 covers the lower space 15 of the housing 11 and is detachable from the housing 11.

図３〜図６に示すように、室内機１０は、室内熱交換器５と、シロッコファン７と、を筐体１１の内部に備える。室内機１０は、筐体１１の内部にて室内熱交換器５を配置する上部空間１４を有する。室内機１０は、筐体１１の内部にてシロッコファン７を配置する下部空間１５を有する。上部空間１４と下部空間１５とは、ファンプレート１６によって仕切られる。   As shown in FIGS. 3 to 6, the indoor unit 10 includes the indoor heat exchanger 5 and the sirocco fan 7 inside the housing 11. The indoor unit 10 has an upper space 14 in which the indoor heat exchanger 5 is arranged inside the housing 11. The indoor unit 10 has a lower space 15 in which the sirocco fan 7 is arranged inside the housing 11. The upper space 14 and the lower space 15 are separated by a fan plate 16.

図３に示すように、室内機１０には、筐体１１の天面に、吹出開口部１７が設けられる。吹出開口部１７は、筐体１１の上部空間１４の上部にて開口する。室内機１０には、筐体１１の下面に、吸込開口部１８が設けられる。吸込開口部１８は、筐体１１の下部空間１５の下部にて開口する。   As shown in FIG. 3, the indoor unit 10 is provided with a blowout opening 17 on the top surface of the housing 11. The blowout opening 17 opens at an upper part of the upper space 14 of the housing 11. The indoor unit 10 is provided with a suction opening 18 on the lower surface of the housing 11. The suction opening 18 opens at a lower portion of the lower space 15 of the housing 11.

室内機１０は、室内機１０を壁掛け状態に支持する壁掛け金具１９を備える。壁掛け金具１９は、筐体１１に螺子止めされる。壁掛け金具１９は、図２のような室内機１０を床置き状態する場合には、取り外されても良い。   The indoor unit 10 includes a wall mounting bracket 19 that supports the indoor unit 10 in a wall-mounted state. The wall mount 19 is screwed to the housing 11. The wall mounting bracket 19 may be removed when the indoor unit 10 is placed on the floor as shown in FIG.

図４に示すように、室内機１０の筐体１１の上部空間１４内右側には、室内熱交換器５に室外機８との間で冷媒を流通させる配管群をまとめた機械室２０が設けられる。機械室２０は、室内熱交換器５の配置された上部空間１４と２つの仕切り板２１ａ、２１ｂによって仕切られる。機械室２０には、ファンプレート１６の上側に凝縮水などが滴下したドレン水を受けるドレンパン２２が配置される。   As shown in FIG. 4, on the right side in the upper space 14 of the housing 11 of the indoor unit 10, a machine room 20 is provided in which a group of pipes for flowing the refrigerant between the indoor heat exchanger 5 and the outdoor unit 8 is provided. Can be The machine room 20 is partitioned by the upper space 14 in which the indoor heat exchanger 5 is arranged and two partition plates 21a and 21b. In the machine room 20, a drain pan 22 that receives drain water in which condensed water or the like has dropped is disposed above the fan plate 16.

室内機１０の筐体１１の下部空間１５内右側には、制御装置２３が設けられる。制御装置２３は、各種の電気部品が内蔵される制御箱で囲まれ、シロッコファン７の回転数などを制御する。   A control device 23 is provided on the right side in the lower space 15 of the housing 11 of the indoor unit 10. The control device 23 is surrounded by a control box in which various electric components are built, and controls the rotation speed of the sirocco fan 7 and the like.

室内機１０の筐体１１の内部右側には、下部空間１５内の制御装置２３よりも下方に、冷媒検知部３０が設けられる。冷媒検知部３０は、筐体１１などに対して取り外し可能である。   A refrigerant detection unit 30 is provided on the right side inside the housing 11 of the indoor unit 10 below the control device 23 in the lower space 15. The refrigerant detection unit 30 is detachable from the housing 11 and the like.

図５に示すように、室内機１０の筐体１１の内部における中央から左側には、上部空間１４内に室内熱交換器５を配置した熱交換器室２４が設けられる。熱交換器室２４には、室内熱交換器５と、ドレンパン２５と、が配置される。室内熱交換器５は、下部を室内機１０の前側に出して上部を室内機１０の後側に傾けて配置される。室内熱交換器５は、下部をドレンパン２５に固定され、上部を係止部材２６に係止される。   As shown in FIG. 5, a heat exchanger room 24 in which the indoor heat exchanger 5 is disposed in the upper space 14 is provided on the left side from the center inside the housing 11 of the indoor unit 10. In the heat exchanger room 24, the indoor heat exchanger 5 and the drain pan 25 are arranged. The indoor heat exchanger 5 is arranged such that the lower part is directed forward of the indoor unit 10 and the upper part is inclined toward the rear side of the indoor unit 10. The lower part of the indoor heat exchanger 5 is fixed to the drain pan 25, and the upper part is locked by the locking member 26.

室内機１０の上部空間１４内に熱交換器室２４が設けられた部分の下部空間１５には、シロッコファン７が配置される。シロッコファン７は、吹出口７ａをファンプレート１６の開口から突き出し、下部空間１５内から吸い込んだ空気を上部空間１４に吹き出す。   The sirocco fan 7 is arranged in the lower space 15 of the portion where the heat exchanger room 24 is provided in the upper space 14 of the indoor unit 10. The sirocco fan 7 protrudes the air outlet 7 a from the opening of the fan plate 16, and blows out the air sucked from the lower space 15 into the upper space 14.

図６に示すように、シロッコファン７は、筐体１１の左右方向に４つ並列して配置される。熱交換器室２４のドレンパン２５は、機械室２０のドレンパン２２よりも上部に配置される。熱交換器室２４のドレンパン２５に溜まったドレン水が機械室２０のドレンパン２２に流れ、機械室２０のドレンパン２２に設けられる図示しない排水部からドレン水が排出される。なおここでは、シロッコファン７の数は、４つを例示する。しかし、シロッコファン７の数は、限定されない。たとえば、シロッコファン７の数は、２つあるいは３つでも良い。   As shown in FIG. 6, four sirocco fans 7 are arranged side by side in the left-right direction of the housing 11. The drain pan 25 of the heat exchanger room 24 is arranged above the drain pan 22 of the machine room 20. Drain water collected in the drain pan 25 of the heat exchanger room 24 flows to the drain pan 22 of the machine room 20, and drain water is discharged from a drain (not shown) provided in the drain pan 22 of the machine room 20. Here, the number of the sirocco fans 7 is exemplified by four. However, the number of sirocco fans 7 is not limited. For example, the number of sirocco fans 7 may be two or three.

＜冷媒検知部３０の構成＞
図７は、本発明の実施の形態１に係る冷媒検知部３０における外観を示す斜視図である。図８は、本発明の実施の形態１に係る冷媒検知部３０における内部を示す斜視図である。<Configuration of refrigerant detection unit 30>
FIG. 7 is a perspective view illustrating an appearance of the refrigerant detection unit 30 according to Embodiment 1 of the present invention. FIG. 8 is a perspective view showing the inside of the refrigerant detection unit 30 according to Embodiment 1 of the present invention.

図７、図８に示すように、冷媒検知部３０は、センサ３１と、中継基板３２と、センサカバー３３と、中継基板カバー３４と、取付部材３５と、を有する。   As shown in FIGS. 7 and 8, the refrigerant detection unit 30 includes a sensor 31, a relay board 32, a sensor cover 33, a relay board cover 34, and a mounting member 35.

センサ３１は、室内に漏洩した冷媒を検知する。中継基板３２は、センサ３１の上側に隣接して配置され、センサ３１からの検知情報を室内機１０の制御装置２３に送信する。センサカバー３３は、前面および下面の表面に開口部である複数のスリット３６を有し、センサ３１を覆う。漏洩した冷媒は、複数のスリット３６を介してセンサ３１に到達する。中継基板カバー３４は、センサカバー３３の上側の隣接部にてセンサカバー３３よりも大きく構成され、表面に開口部の無い完全に密閉する状態で中継基板３２を覆う。中継基板カバー３４がセンサカバー３３よりも平面視にて大きいことにより、冷媒検知部３０に滴下する凝縮水などは、複数のスリット３６に浸入せず、中継基板カバー３４によって受け止められる。取付部材３５は、センサ３１と中継基板３２とセンサカバー３３と中継基板カバー３４とを保持する。取付部材３５は、冷媒検知部３０を筐体１１に螺子止めによって固定する状態と、冷媒検知部３０を１つの脚部１２ａに螺子止めによって固定する状態と、のいずれかの状態で固定される。   The sensor 31 detects the refrigerant leaked into the room. The relay board 32 is disposed adjacent to and above the sensor 31, and transmits detection information from the sensor 31 to the control device 23 of the indoor unit 10. The sensor cover 33 has a plurality of slits 36 as openings on the front and lower surfaces, and covers the sensor 31. The leaked refrigerant reaches the sensor 31 via the plurality of slits 36. The relay board cover 34 is configured to be larger than the sensor cover 33 at an adjacent portion above the sensor cover 33, and covers the relay board 32 in a state of being completely sealed without an opening on the surface. Since the relay board cover 34 is larger in plan view than the sensor cover 33, condensed water or the like dropped on the refrigerant detection unit 30 does not enter the plurality of slits 36 and is received by the relay board cover 34. The mounting member 35 holds the sensor 31, the relay board 32, the sensor cover 33, and the relay board cover 34. The mounting member 35 is fixed in one of a state in which the refrigerant detection unit 30 is fixed to the housing 11 by screwing and a state in which the refrigerant detection unit 30 is fixed to one leg 12a by screwing. .

冷媒検知部３０は、筐体１１から取り外し可能である。このため、室内機１０が壁掛け状態となる場合には、冷媒検知部３０は、１つの脚部１２ａに螺子止めされて固定され、室内機１０の筐体１１の下方かつ下方かつ外方に配置される場合がある。   The refrigerant detection unit 30 is detachable from the housing 11. For this reason, when the indoor unit 10 is in a wall-mounted state, the refrigerant detection unit 30 is screwed and fixed to one leg 12a, and is disposed below, below, and outside the housing 11 of the indoor unit 10. May be done.

なお、冷媒検知部３０は、室内機１０とは分離して、室内の壁面に設置しても良い。冷媒検知部３０と室内機１０とは、図示しない中継配線を這いまわして接続できる距離で離間しても良い。   Note that the refrigerant detection unit 30 may be installed separately from the indoor unit 10 on an indoor wall surface. The refrigerant detection unit 30 and the indoor unit 10 may be separated from each other by a distance that allows the refrigerant detection unit 30 and the indoor unit 10 to crawl and connect the relay wiring (not shown).

また、実施の形態１では、冷媒検知部３０は、筐体１１の下部空間１５におけるシロッコファン７の隣の側壁部に固定される。しかし、冷媒検知部３０が筐体１１内で配置される箇所は、これに限られず、様々な位置で固定しても良い。   Further, in the first embodiment, the refrigerant detection unit 30 is fixed to the side wall adjacent to the sirocco fan 7 in the lower space 15 of the housing 11. However, the location where the refrigerant detection unit 30 is disposed in the housing 11 is not limited to this, and may be fixed at various positions.

また、実施の形態１と異なり、冷媒検知部３０の構成は、これに限られず、様々な構成であっても良い。   Further, unlike Embodiment 1, the configuration of the refrigerant detection unit 30 is not limited to this, and may be various configurations.

また、冷媒検知部３０は、配線あるいは無線によって、室内機１０から離れた位置に配置されても良い。   Further, the refrigerant detection unit 30 may be arranged at a position away from the indoor unit 10 by wiring or wirelessly.

また、冷媒検知部３０は、１つの脚部１２ａに取り付けられる構成を採用している。しかし、これに限られず、それに類する冷媒検知部３０を固定可能な部材を用いて室内機１０の下方かつ外方に取り付けても良い。   In addition, the refrigerant detection unit 30 employs a configuration in which the refrigerant detection unit 30 is attached to one leg 12a. However, the present invention is not limited to this, and it may be mounted below and outside the indoor unit 10 using a member capable of fixing the similar refrigerant detection unit 30.

＜第１形態＞
次に、第１形態について説明する。図２に示す室内機１０は、第１形態である。第１形態は、室内機１０が床置き状態の１つの形態である。第１形態では、冷媒検知部３０は、室内機１０における筐体１１の下部空間１５内に取り付けられる。第１形態では、１対の脚部１２ａ、１２ｂは、筐体１１に取り付けられ、筐体１１を下方から支持する。第１形態では、筐体１１の下面に設けられる吸込開口部１８から筐体１１の下方の空気が吸い込まれる。<First form>
Next, the first embodiment will be described. The indoor unit 10 shown in FIG. 2 is a first embodiment. The first mode is one mode in which the indoor unit 10 is placed on the floor. In the first embodiment, the refrigerant detection unit 30 is mounted in the lower space 15 of the housing 11 in the indoor unit 10. In the first embodiment, the pair of legs 12a and 12b is attached to the housing 11, and supports the housing 11 from below. In the first embodiment, air below the housing 11 is sucked from the suction opening 18 provided on the lower surface of the housing 11.

１対の脚部１２ａ、１２ｂは、室内機１０が床置き状態のときに、筐体１１に取り付けられて筐体１１を下方から支持する状態である。壁掛け金具１９は、筐体１１から取り外される。下部側壁部１３は、筐体１１の下部空間１５を覆う。   The pair of legs 12a and 12b is attached to the housing 11 and supports the housing 11 from below when the indoor unit 10 is placed on the floor. The wall mount 19 is removed from the housing 11. The lower side wall 13 covers the lower space 15 of the housing 11.

＜第１形態の動作＞
第１形態では、床面と筐体１１の下面との間に形成された隙間における筐体１１の下方の空気は、図２に示す図示矢印Ａのように、筐体１１の下面に設けられる吸込開口部１８から下部空間１５に吸い込まれる。そして、下部空間１５に吸い込まれた空気は、シロッコファン７によって上部空間１４に押し出される。上部空間１４に押し出された空気は、室内熱交換器５を通過する。室内熱交換器５を通過する空気は、室内熱交換器５を流通する冷媒と熱交換し、冷房または暖房用の調和空気となる。上部空間１４の調和空気は、図２に示す図示矢印Ｂのように、筐体１１の天面に設けられる吹出開口部１７から室内に吹き出される。<Operation of First Embodiment>
In the first embodiment, the air below the housing 11 in the gap formed between the floor surface and the lower surface of the housing 11 is provided on the lower surface of the housing 11 as indicated by an arrow A shown in FIG. It is sucked into the lower space 15 from the suction opening 18. Then, the air sucked into the lower space 15 is pushed out to the upper space 14 by the sirocco fan 7. The air pushed into the upper space 14 passes through the indoor heat exchanger 5. The air passing through the indoor heat exchanger 5 exchanges heat with the refrigerant flowing through the indoor heat exchanger 5, and becomes conditioned air for cooling or heating. The conditioned air in the upper space 14 is blown into the room through a blowout opening 17 provided on the top surface of the housing 11 as shown by an arrow B in FIG.

＜第２形態＞
次に、第２形態について説明する。図９は、本発明の実施の形態１に係る空気調和装置１００の室内機１０における第２形態での外観を示す正面図である。<Second embodiment>
Next, a second embodiment will be described. FIG. 9 is a front view showing the appearance of indoor unit 10 of air conditioner 100 according to Embodiment 1 of the present invention in a second mode.

図９に示す室内機１０は、第２形態である。第２形態は、室内機１０が床置き状態である１つの形態である。第２形態では、冷媒検知部３０は、筐体１１の下部空間１５内に取り付けられる。第２形態では、１対の脚部１２ａ、１２ｂは、筐体１１から取り外される。第２形態では、吸込開口部１８が床面に接地される。第２形態では、下部側壁部１３は、筐体１１から取り外される。下部側壁部１３が取り外された前面開口部２７は、筐体１１の下部側方の空気を吸い込む吸込口である。   The indoor unit 10 shown in FIG. 9 is a second embodiment. The second mode is one mode in which the indoor unit 10 is placed on the floor. In the second embodiment, the refrigerant detection unit 30 is mounted in the lower space 15 of the housing 11. In the second embodiment, the pair of legs 12a, 12b is removed from the housing 11. In the second embodiment, the suction opening 18 is grounded to the floor. In the second embodiment, the lower side wall 13 is removed from the housing 11. The front opening 27 from which the lower side wall 13 is removed is a suction port for sucking air in the lower side of the housing 11.

なお、壁掛け金具１９は、筐体１１から取り外されても良い。   Note that the wall mount 19 may be removed from the housing 11.

＜第２形態の動作＞
第２形態では、筐体１１の前方の空気は、図９に示す図示矢印Ａのように、下部側壁部１３が取り外された前面開口部２７から下部空間１５に吸い込まれる。そして、下部空間１５に吸い込まれた空気は、シロッコファン７によって上部空間１４に押し出される。上部空間１４に押し出された空気は、室内熱交換器５を通過する。室内熱交換器５を通過する空気は、室内熱交換器５を流通する冷媒と熱交換し、冷房または暖房用の調和空気となる。上部空間１４の調和空気は、図９に示す図示矢印Ｂのように、筐体１１の天面に設けられる吹出開口部１７から室内に吹き出される。<Operation of Second Embodiment>
In the second embodiment, the air in front of the housing 11 is sucked into the lower space 15 from the front opening 27 from which the lower side wall 13 has been removed, as shown by the arrow A in FIG. Then, the air sucked into the lower space 15 is pushed out to the upper space 14 by the sirocco fan 7. The air pushed into the upper space 14 passes through the indoor heat exchanger 5. The air passing through the indoor heat exchanger 5 exchanges heat with the refrigerant flowing through the indoor heat exchanger 5, and becomes conditioned air for cooling or heating. The conditioned air in the upper space 14 is blown into the room through a blowout opening 17 provided on the top surface of the housing 11 as shown by an arrow B in FIG.

このように、室内機１０は、下部側壁部１３をフィルタと入れ替えることにより、下吸込みから前吸込みの形態に切り替えられる。このとき、冷媒検知部３０は、筐体１１の内部の下部空間１５、かつ、冷媒漏洩を検出しやすい床面に近い位置に設置できる。   As described above, the indoor unit 10 is switched from the lower suction to the front suction by replacing the lower side wall 13 with the filter. At this time, the refrigerant detection unit 30 can be installed in the lower space 15 inside the housing 11 and at a position close to the floor where it is easy to detect refrigerant leakage.

＜第３形態＞
次に、第３形態について説明する。図１０は、本発明の実施の形態１に係る空気調和装置１００の室内機１０における第３形態での外観を示す正面図である。<Third embodiment>
Next, a third embodiment will be described. FIG. 10 is a front view showing the appearance of the indoor unit 10 of the air conditioner 100 according to Embodiment 1 of the present invention in a third mode.

図１０に示す室内機１０は、第３形態である。第３形態は、室内機１０が壁掛け状態である。第３形態では、冷媒検知部３０は、１対の脚部１２ａ、１２ｂのうちの１つの脚部１２ａによって筐体１１の下方かつ外方に取り付けられる。第３形態では、吸込開口部１８から筐体１１の下方の空気が吸い込まれる。   The indoor unit 10 shown in FIG. 10 is a third embodiment. In the third mode, the indoor unit 10 is mounted on a wall. In the third embodiment, the refrigerant detection unit 30 is attached to the lower side and the outside of the housing 11 by one leg 12a of the pair of legs 12a and 12b. In the third embodiment, the air below the housing 11 is sucked from the suction opening 18.

１対の脚部１２ａ、１２ｂは、室内機１０が壁掛け状態の第３形態においては、一方の１つの脚部１２ａが冷媒検知部３０を筐体１１の下方かつ外方に取り付け、他方の１つの脚部１２ｂが筐体１１から取り外される。壁掛け金具１９は、室内機１０を壁に固定した壁掛け状態に支持する。   In the third mode in which the indoor unit 10 is mounted on the wall, one pair of legs 12a and 12b attaches the refrigerant detection unit 30 below and outside the housing 11 and the other pair of legs 12a and 12b. The two legs 12b are removed from the housing 11. The wall mounting bracket 19 supports the indoor unit 10 in a state where the indoor unit 10 is fixed to a wall.

＜第３形態の動作＞
第３形態では、筐体１１の下方の空気は、図１０に示す図示矢印Ａのように、筐体１１の下面に設けられる吸込開口部１８から下部空間１５に吸い込まれる。そして、下部空間１５に吸い込まれた空気は、シロッコファン７によって上部空間１４に押し出される。上部空間１４に押し出された空気は、室内熱交換器５を通過する。室内熱交換器５を通過する空気は、室内熱交換器５を流通する冷媒と熱交換し、冷房または暖房用の調和空気となる。上部空間１４の調和空気は、図１０に示す図示矢印Ｂのように、筐体１１の天面に設けられる吹出開口部１７から室内に吹き出される。<Operation of Third Embodiment>
In the third embodiment, the air below the housing 11 is sucked into the lower space 15 from the suction opening 18 provided on the lower surface of the housing 11 as indicated by an arrow A shown in FIG. Then, the air sucked into the lower space 15 is pushed out to the upper space 14 by the sirocco fan 7. The air pushed into the upper space 14 passes through the indoor heat exchanger 5. The air passing through the indoor heat exchanger 5 exchanges heat with the refrigerant flowing through the indoor heat exchanger 5, and becomes conditioned air for cooling or heating. The conditioned air in the upper space 14 is blown into the room through a blowout opening 17 provided on the top surface of the housing 11 as indicated by an arrow B in FIG.

以上のように、空気調和装置１００の室内機１０は、室内機１０が第１形態と第２形態と第３形態とを選択自在に配置される。そして、室内機１０がこれらの形態に変更されても、冷媒検知部３０が取り外し可能であるので、冷媒検知部３０が筐体１１の下方かつ外方に取り付けられる場合がある。したがって、冷媒検知部３０が床面に近い位置に設置でき、漏洩した冷媒を検知する検知性能が向上できる。   As described above, the indoor unit 10 of the air-conditioning apparatus 100 is configured such that the indoor unit 10 can be freely selected from the first mode, the second mode, and the third mode. Then, even if the indoor unit 10 is changed to these modes, the refrigerant detection unit 30 is detachable, so the refrigerant detection unit 30 may be attached below and outside the housing 11 in some cases. Therefore, the refrigerant detection unit 30 can be installed at a position close to the floor, and the detection performance of detecting the leaked refrigerant can be improved.

＜実施の形態１の効果＞
実施の形態１によれば、空気調和装置１００の室内機１０は、室内熱交換器５と送風機としてのシロッコファン７とを筐体１１の内部に備える。空気調和装置１００の室内機１０は、取り外し可能な冷媒検知部３０を備える。冷媒検知部３０は、筐体１１の内部に取り付けられる状態と、筐体１１の下方かつ外方に取り付けられる状態と、を選択自在に配置される。<Effect of First Embodiment>
According to Embodiment 1, indoor unit 10 of air-conditioning apparatus 100 includes indoor heat exchanger 5 and sirocco fan 7 as a blower in housing 11. The indoor unit 10 of the air conditioner 100 includes a removable refrigerant detection unit 30. The refrigerant detection unit 30 is disposed so as to be freely selectable between a state where the refrigerant detection unit 30 is mounted inside the housing 11 and a state where the refrigerant detection unit 30 is mounted below and outside the housing 11.

この構成によれば、空気調和装置１００の室内機１０が床面から離れた高い位置に設置されても、冷媒検知部３０は、筐体１１の下方かつ外方に取り付けられる状態に変更され、冷媒濃度が高くなる床面付近に近づけて配置できる。したがって、空気調和装置１００の室内機１０が床面から離れた高い位置に設置されても、冷媒検知部３０が漏洩した冷媒を検知できる。   According to this configuration, even if the indoor unit 10 of the air-conditioning apparatus 100 is installed at a high position away from the floor, the refrigerant detection unit 30 is changed to a state in which the refrigerant detection unit 30 is attached below and outside the housing 11, It can be arranged close to the floor where the refrigerant concentration is high. Therefore, even if the indoor unit 10 of the air conditioner 100 is installed at a high position away from the floor, the refrigerant detection unit 30 can detect the leaked refrigerant.

実施の形態１によれば、室内機１０は、筐体１１の内部にて室内熱交換器５を配置する上部空間１４と、筐体１１の内部にて送風機としてのシロッコファン７を配置する下部空間１５と、を有する。室内機１０は、床置き状態と、壁掛け状態と、を選択自在に配置される。冷媒検知部３０は、室内機１０が床置き状態のときに、筐体１１の下部空間１５に取り付けられる状態と、室内機１０が壁掛け状態のときに、筐体１１の下方かつ外方に取り付けられる状態と、を選択自在に配置される。   According to the first embodiment, indoor unit 10 includes upper space 14 in which indoor heat exchanger 5 is arranged inside housing 11 and lower space in which sirocco fan 7 as a blower is arranged inside housing 11. A space 15. The indoor unit 10 is arranged to be freely selectable between a floor-standing state and a wall-mounted state. The refrigerant detection unit 30 is attached to the lower space 15 of the housing 11 when the indoor unit 10 is placed on the floor, and mounted below and outside the housing 11 when the indoor unit 10 is mounted on the wall. And the state in which they are placed.

この構成によれば、空気調和装置１００の室内機１０が床面から離れた高い位置に設置される壁掛け状態で配置されても、冷媒検知部３０は、筐体１１の下方かつ外方に取り付けられる状態に変更され、冷媒濃度が高くなる床面付近に近づけて配置できる。したがって、空気調和装置１００の室内機１０が壁掛け状態となって床面から離れた高い位置に設置されても、冷媒検知部３０が漏洩した冷媒を検知できる。   According to this configuration, even when the indoor unit 10 of the air-conditioning apparatus 100 is arranged in a wall-mounted state installed at a high position away from the floor, the refrigerant detection unit 30 is attached below and outside the housing 11. The state can be changed to a state where the refrigerant concentration is high, and it can be arranged close to the vicinity of the floor where the refrigerant concentration is high. Therefore, even if the indoor unit 10 of the air-conditioning apparatus 100 is mounted on a wall and installed at a high position away from the floor, the refrigerant detection unit 30 can detect the leaked refrigerant.

実施の形態１によれば、室内機１０は、壁掛け状態に支持する壁掛け金具１９を備える。   According to Embodiment 1, the indoor unit 10 includes the wall mounting bracket 19 that supports the indoor unit 10 in a wall-mounted state.

この構成によれば、空気調和装置１００の室内機１０は、床置き型であっても、壁掛け金具１９によって壁掛け状態で設置できる。   According to this configuration, even if the indoor unit 10 of the air conditioner 100 is a floor-standing type, the indoor unit 10 can be installed in a wall-mounted state by the wall mounting bracket 19.

実施の形態１によれば、筐体１１に取り外し可能な１対の脚部１２ａ、１２ｂを備える。１対の脚部１２ａ、１２ｂは、室内機１０が床置き状態のときに、筐体１１に取り付けられて筐体１１を下方から支持する状態と、室内機１０が壁掛け状態のときに、冷媒検知部３０を筐体１１の下方かつ外方に取り付ける状態と、を選択自在に配置される。   According to the first embodiment, the housing 11 includes the pair of detachable legs 12a and 12b. The pair of legs 12a and 12b are connected to the refrigerant when the indoor unit 10 is placed on the floor and mounted on the housing 11 to support the housing 11 from below, and when the indoor unit 10 is mounted on the wall. A state in which the detection unit 30 is attached below and outside the housing 11 is disposed so as to be selectable.

この構成によれば、空気調和装置１００の室内機１０が床面から離れた高い位置に設置される壁掛け状態で配置されても、冷媒検知部３０は、いずれかの脚部１２ａ、１２ｂによって筐体１１の下方かつ外方に取り付けられる状態に変更され、冷媒濃度が高くなる床面付近に近づけて配置できる。したがって、空気調和装置１００の室内機１０が壁掛け状態となって床面から離れた高い位置に設置されても、冷媒検知部３０が漏洩した冷媒を検知できる。   According to this configuration, even if the indoor unit 10 of the air-conditioning apparatus 100 is arranged in a wall-mounted state installed at a high position away from the floor, the refrigerant detection unit 30 can be mounted on the casing by one of the legs 12a and 12b. It is changed to a state of being attached below and outside the body 11, and can be arranged close to the vicinity of the floor where the refrigerant concentration is high. Therefore, even if the indoor unit 10 of the air-conditioning apparatus 100 is mounted on a wall and installed at a high position away from the floor, the refrigerant detection unit 30 can detect the leaked refrigerant.

またこの構成によれば、空気調和装置１００の室内機１０が床置き状態で床面に設置されるときに、１対の脚部１２ａ、１２ｂによって筐体１１の下面に形成される吸込開口部１８に下方から空気を吸い込める隙間を確保できる。そして、１対の脚部１２ａ、１２ｂは、空気調和装置１００の室内機１０が壁掛け状態で配置されるときに、冷媒検知部３０がいずれかの脚部１２ａ、１２ｂに取り付けられ、冷媒検知部３０がいずれかの脚部１２ａ、１２ｂによって筐体１１の下方かつ外方に取り付けられる状態に変更される。このように、１対の脚部１２ａ、１２ｂは、空気調和装置１００の室内機１０が床置き状態のときと、壁掛け状態のときとの両方で有効利用される。   Further, according to this configuration, when the indoor unit 10 of the air conditioner 100 is placed on the floor while being placed on the floor, the suction opening formed on the lower surface of the housing 11 by the pair of legs 12a and 12b. A space for sucking air from below can be ensured at 18. When the indoor unit 10 of the air-conditioning apparatus 100 is arranged in a wall-mounted state, the pair of legs 12a, 12b has the refrigerant detection unit 30 attached to one of the legs 12a, 12b. 30 is changed to a state in which it is attached below and outside the housing 11 by one of the legs 12a and 12b. As described above, the pair of legs 12a and 12b is effectively used both when the indoor unit 10 of the air-conditioning apparatus 100 is placed on the floor and when it is hung on the wall.

実施の形態１によれば、筐体１１は、上部空間１４の上部にて開口する吹出開口部１７を有する。筐体１１は、下部空間１５の下部にて開口する吸込開口部１８を有する。筐体１１は、筐体１１の下部空間１５を覆うとともに筐体１１に取り外し可能な下部側壁部１３を有する。室内機１０は、床置き状態として、冷媒検知部３０が筐体１１の下部空間１５内に取り付けられ、１対の脚部１２ａ、１２ｂが筐体１１に取り付けられて筐体１１を下方から支持し、吸込開口部１８から筐体１１の下方の空気が吸い込まれる第１形態を有する。室内機１０は、床置き状態として、冷媒検知部３０が筐体１１の下部空間１５内に取り付けられ、１対の脚部１２ａ、１２ｂが筐体１１から取り外され、吸込開口部１８が床面に接地され、下部側壁部１３が筐体１１から取り外されて筐体１１の下部側方の空気が吸い込まれる第２形態を有する。室内機１０は、壁掛け状態として、冷媒検知部３０が１対の脚部１２ａ、１２ｂのうちの１つの脚部１２ａによって筐体１１の下方かつ外方に取り付けられ、吸込開口部１８から筐体１１の下方の空気が吸い込まれる第３形態を有する。室内機１０は、第１形態と第２形態と第３形態とを選択自在に配置される。   According to the first embodiment, housing 11 has blowout opening 17 opening above upper space 14. The housing 11 has a suction opening 18 that opens at the lower part of the lower space 15. The housing 11 has a lower side wall 13 that covers the lower space 15 of the housing 11 and is removable from the housing 11. When the indoor unit 10 is placed on the floor, the refrigerant detection unit 30 is mounted in the lower space 15 of the housing 11, and the pair of legs 12 a and 12 b is mounted on the housing 11 to support the housing 11 from below. Then, there is a first mode in which the air below the housing 11 is sucked from the suction opening 18. When the indoor unit 10 is placed on the floor, the refrigerant detection unit 30 is mounted in the lower space 15 of the housing 11, the pair of legs 12a and 12b is removed from the housing 11, and the suction opening 18 is placed on the floor. And the lower side wall 13 is detached from the housing 11 so that the air on the lower side of the housing 11 is sucked. In the indoor unit 10, the refrigerant detection unit 30 is mounted below and outside the housing 11 by one leg 12 a of the pair of legs 12 a and 12 b in a wall-mounted state. 11 has a third configuration in which the air below 11 is sucked. The indoor unit 10 is disposed so as to be able to select a first mode, a second mode, and a third mode.

この構成によれば、空気調和装置１００の室内機１０が第１形態および第２形態の床置き状態とは異なって床面から離れた高い位置に設置される第３形態である壁掛け状態で配置される。この第３形態のときに、冷媒検知部３０は、１つの脚部１２ａによって筐体１１の下方かつ外方に取り付けられる状態に変更され、冷媒濃度が高くなる床面付近に近づけて配置できる。したがって、空気調和装置１００の室内機１０が壁掛け状態となって床面から離れた高い位置に設置されても、冷媒検知部３０が漏洩した冷媒を検知できる。   According to this configuration, the indoor unit 10 of the air conditioner 100 is arranged in a wall-mounted state, which is a third mode in which the indoor unit 10 is installed at a higher position away from the floor surface, unlike the floor-standing state in the first mode and the second mode. Is done. In the third mode, the refrigerant detection unit 30 is changed to a state in which the refrigerant detection unit 30 is attached below and outside the housing 11 by one leg portion 12a, and can be disposed closer to the vicinity of the floor where the refrigerant concentration is high. Therefore, even if the indoor unit 10 of the air-conditioning apparatus 100 is mounted on a wall and installed at a high position away from the floor, the refrigerant detection unit 30 can detect the leaked refrigerant.

実施の形態１によれば、冷媒検知部３０は、冷媒を検知するセンサ３１を有する。冷媒検知部３０は、センサ３１の上側に隣接して配置されてセンサ３１からの検知情報を室内機１０の制御装置２３に送信する中継基板３２を有する。冷媒検知部３０は、表面に開口部としての複数のスリット３６を有してセンサ３１を覆うセンサカバー３３を有する。冷媒検知部３０は、センサカバー３３の上側の隣接部にてセンサカバー３３よりも平面視にて大きく構成されて表面に開口部の無い状態で中継基板３２を覆う中継基板カバー３４を有する。   According to the first embodiment, refrigerant detection unit 30 has sensor 31 for detecting refrigerant. The refrigerant detection unit 30 includes a relay board 32 that is disposed adjacent to the upper side of the sensor 31 and transmits detection information from the sensor 31 to the control device 23 of the indoor unit 10. The refrigerant detection unit 30 has a sensor cover 33 that has a plurality of slits 36 as openings on the surface and covers the sensor 31. The refrigerant detecting section 30 has a relay board cover 34 that is configured to be larger than the sensor cover 33 in a plan view at an adjacent portion above the sensor cover 33 and covers the relay board 32 with no opening on the surface.

この構成によれば、冷媒検知部３０のセンサ３１は、センサカバー３３に開いた複数のスリット３６から漏洩した冷媒を検知できる。また、センサカバー３３に開いた複数のスリット３６は、センサカバー３３の上側の隣接部にてセンサカバー３３よりも平面視にて大きく構成される中継基板カバー３４によって上方からの凝縮水などの液体の浸入を防止される。これにより、冷媒検知部３０のセンサ３１は、冷媒検知部３０よりも上方から液体が浸入しないことにより、液体に濡れて故障することが防止できる。   According to this configuration, the sensor 31 of the refrigerant detection unit 30 can detect the refrigerant leaking from the plurality of slits 36 opened in the sensor cover 33. Further, the plurality of slits 36 opened in the sensor cover 33 are provided with a liquid such as condensed water from above by the relay board cover 34 which is larger than the sensor cover 33 in a plan view at an adjacent portion above the sensor cover 33. Is prevented from entering. Accordingly, the sensor 31 of the refrigerant detection unit 30 can prevent the liquid from entering from above the refrigerant detection unit 30, thereby preventing a failure due to the liquid being wetted by the liquid.

実施の形態１によれば、空気調和装置１００は、空気調和装置１００の室内機１０を備える。   According to Embodiment 1, the air conditioner 100 includes the indoor unit 10 of the air conditioner 100.

この構成によれば、空気調和装置１００の室内機１０が床面から離れた高い位置に設置されても、冷媒検知部３０は、筐体１１の下方かつ外方に取り付けられる状態に変更され、冷媒濃度が高くなる床面付近に近づけて配置できる。したがって、空気調和装置１００の室内機１０が床面から離れた高い位置に設置されても、冷媒検知部３０が漏洩した冷媒を検知できる。   According to this configuration, even if the indoor unit 10 of the air-conditioning apparatus 100 is installed at a high position away from the floor, the refrigerant detection unit 30 is changed to a state in which the refrigerant detection unit 30 is attached below and outside the housing 11, It can be arranged close to the floor where the refrigerant concentration is high. Therefore, even if the indoor unit 10 of the air conditioner 100 is installed at a high position away from the floor, the refrigerant detection unit 30 can detect the leaked refrigerant.

実施の形態１によれば、空気調和装置１００の室内機１０の設置方法は、室内機１０が床置き状態として、冷媒検知部３０が筐体１１の下部空間１５内に取り付けられ、１対の脚部１２ａ、１２ｂが筐体１１に取り付けられて筐体１１を下方から支持し、筐体１１の下面に設けられる吸込開口部１８から筐体１１の下方の空気が吸い込まれる第１形態を有する。空気調和装置１００の室内機１０の設置方法は、室内機１０が床置き状態として、冷媒検知部３０が筐体１１の下部空間１５内に取り付けられ、１対の脚部１２ａ、１２ｂが筐体１１から取り外され、吸込開口部１８が床面に接地され、下部側壁部１３が筐体１１から取り外されて筐体１１の下部側方の空気が吸い込まれる第２形態を有する。空気調和装置１００の室内機１０の設置方法は、室内機１０が壁掛け状態として、冷媒検知部３０が１対の脚部１２ａ、１２ｂのうちの１つの脚部１２ａによって筐体１１の下方かつ外方に取り付けられ、吸込開口部１８から筐体１１の下方の空気が吸い込まれる第３形態を有する。空気調和装置１００の室内機１０の設置方法は、室内機１０が第１形態と第２形態と第３形態とを選択自在に設置される。   According to Embodiment 1, the installation method of indoor unit 10 of air conditioner 100 is such that indoor unit 10 is placed on the floor, refrigerant detection unit 30 is mounted in lower space 15 of housing 11, and a pair of indoor units 10 is installed. Legs 12a and 12b are attached to housing 11 to support housing 11 from below, and have a first configuration in which air below housing 11 is sucked in from suction opening 18 provided on the lower surface of housing 11. . The installation method of the indoor unit 10 of the air conditioner 100 is such that the indoor unit 10 is placed on the floor, the refrigerant detection unit 30 is mounted in the lower space 15 of the housing 11, and the pair of legs 12a and 12b is 11, the suction opening 18 is grounded to the floor surface, the lower side wall 13 is removed from the housing 11, and the lower side of the housing 11 has a second form in which air is sucked. The installation method of the indoor unit 10 of the air-conditioning apparatus 100 is such that the indoor unit 10 is mounted on a wall, and the refrigerant detection unit 30 is positioned below and outside the housing 11 by one leg 12a of the pair of legs 12a and 12b. And has a third configuration in which air below the housing 11 is sucked through the suction opening 18. In the method of installing the indoor unit 10 of the air-conditioning apparatus 100, the indoor unit 10 is installed to be able to select the first mode, the second mode, and the third mode.

この構成によれば、空気調和装置１００の室内機１０が第１形態および第２形態の床置き状態とは異なって床面から離れた高い位置に設置される第３形態である壁掛け状態で配置される。この第３形態のときに、冷媒検知部３０は、１つの脚部１２ａによって筐体１１の下方かつ外方に取り付けられる状態に変更され、冷媒濃度が高くなる床面付近に近づけて配置できる。したがって、空気調和装置１００の室内機１０が壁掛け状態となって床面から離れた高い位置に設置されても、冷媒検知部３０が漏洩した冷媒を検知できる。   According to this configuration, the indoor unit 10 of the air conditioner 100 is arranged in a wall-mounted state, which is a third mode in which the indoor unit 10 is installed at a higher position away from the floor surface, unlike the floor-standing state in the first mode and the second mode. Is done. In the third mode, the refrigerant detection unit 30 is changed to a state in which the refrigerant detection unit 30 is attached below and outside the housing 11 by one leg portion 12a, and can be disposed closer to the vicinity of the floor where the refrigerant concentration is high. Therefore, even if the indoor unit 10 of the air-conditioning apparatus 100 is mounted on a wall and installed at a high position away from the floor, the refrigerant detection unit 30 can detect the leaked refrigerant.

１ 圧縮機、２ 四方弁、３ 室外熱交換器、４ 膨張弁、５ 室内熱交換器、６ 室外送風ファン、７ シロッコファン、７ａ 吹出口、８ 室外機、１０ 室内機、１１ 筐体、１２ａ 脚部、１２ｂ 脚部、１３ 下部側壁部、１４ 上部空間、１５ 下部空間、１６ ファンプレート、１７ 吹出開口部、１８ 吸込開口部、１９ 壁掛け金具、２０ 機械室、２１ａ 仕切り板、２１ｂ 仕切り板、２２ ドレンパン、２３ 制御装置、２４ 熱交換器室、２５ ドレンパン、２６ 係止部材、２７ 前面開口部、３０ 冷媒検知部、３１ センサ、３２ 中継基板、３３ センサカバー、３４ 中継基板カバー、３５ 取付部材、３６ スリット、１００ 空気調和装置。   DESCRIPTION OF SYMBOLS 1 Compressor, 2 4-way valve, 3 outdoor heat exchanger, 4 expansion valve, 5 indoor heat exchanger, 6 outdoor blower fan, 7 sirocco fan, 7a outlet, 8 outdoor unit, 10 indoor unit, 11 housing, 12a Leg, 12b leg, 13 lower side wall, 14 upper space, 15 lower space, 16 fan plate, 17 blowout opening, 18 suction opening, 19 wall bracket, 20 machine room, 21a partition plate, 21b partition plate, Reference Signs List 22 drain pan, 23 control device, 24 heat exchanger room, 25 drain pan, 26 locking member, 27 front opening, 30 refrigerant detection unit, 31 sensor, 32 relay board, 33 sensor cover, 34 relay board cover, 35 mounting member , 36 slits, 100 air conditioners.

Claims (8)

室内熱交換器と送風機とを筐体の内部に備える空気調和装置の室内機であって、
前記筐体から取り外し可能な冷媒検知部を備え、
前記冷媒検知部は、前記筐体の内部に取り付けられる状態と、前記筐体の下方かつ外方に取り付けられる状態と、を選択自在に配置される空気調和装置の室内機。An indoor unit of an air conditioner including an indoor heat exchanger and a blower inside a housing,
A refrigerant detection unit detachable from the housing,
The indoor unit of the air conditioner, wherein the refrigerant detection unit is selectively disposed between a state in which the refrigerant detection unit is mounted inside the housing and a state in which the refrigerant detection unit is mounted below and outside the housing. 前記筐体の内部にて前記室内熱交換器を配置する上部空間と、前記筐体の内部にて前記送風機を配置する下部空間と、を有し、
床置き状態と、壁掛け状態と、を選択自在に配置され、
前記冷媒検知部は、前記床置き状態のときに、前記筐体の前記下部空間内に取り付けられる状態と、前記壁掛け状態のときに、前記筐体の下方かつ外方に取り付けられる状態と、を選択自在に配置される請求項１に記載の空気調和装置の室内機。An upper space in which the indoor heat exchanger is arranged inside the housing, and a lower space in which the blower is arranged inside the housing,
It is arranged to be able to select between the floor standing state and the wall hanging state,
The refrigerant detection unit, when in the floor-placed state, when mounted in the lower space of the housing, when the wall mounted state, when mounted below and outside the housing, The indoor unit of the air conditioner according to claim 1, wherein the indoor unit is arranged to be freely selectable. 前記壁掛け状態に支持する壁掛け金具を備える請求項２に記載の空気調和装置の室内機。   The indoor unit of the air-conditioning apparatus according to claim 2, further comprising a wall-mounting bracket that supports the wall-mounting state. 前記筐体に取り外し可能な複数の脚部を備え、
前記複数の脚部は、前記床置き状態のときに、前記筐体に取り付けられて前記筐体を下方から支持する状態と、前記壁掛け状態のときに、前記冷媒検知部を前記筐体の下方かつ外方に取り付ける状態と、を選択自在に配置される請求項２または３に記載の空気調和装置の室内機。The housing includes a plurality of removable legs,
The plurality of legs are attached to the housing to support the housing from below when the floor is placed, and the refrigerant detection unit is disposed below the housing when the wall is mounted. The indoor unit for an air conditioner according to claim 2 or 3, wherein the indoor unit is arranged so as to be freely selectable between an externally mounted state and an externally mounted state. 前記筐体は、前記上部空間の上部にて開口する吹出開口部と、前記下部空間の下部にて開口する吸込開口部と、前記筐体の前記下部空間を覆うとともに前記筐体に取り外し可能な下部側壁部と、を有し、
前記床置き状態として、前記冷媒検知部が前記筐体の前記下部空間内に取り付けられ、前記複数の脚部が前記筐体に取り付けられて前記筐体を下方から支持し、前記吸込開口部から前記筐体の下方の空気が吸い込まれる第１形態と、
前記床置き状態として、前記冷媒検知部が前記筐体の前記下部空間内に取り付けられ、前記複数の脚部が前記筐体から取り外され、前記吸込開口部が床面に接地され、前記下部側壁部が前記筐体から取り外されて前記筐体の下部側方の空気が吸い込まれる第２形態と、
前記壁掛け状態として、前記冷媒検知部が前記複数の脚部のうちの１つの脚部によって前記筐体の下方かつ外方に取り付けられ、前記吸込開口部から前記筐体の下方の空気が吸い込まれる第３形態と、
を有し、
前記第１形態と前記第２形態と前記第３形態とを選択自在に構成される請求項４に記載の空気調和装置の室内機。The housing is a blow-off opening that opens at an upper part of the upper space, a suction opening that opens at a lower part of the lower space, and is detachable from the housing while covering the lower space of the housing. And a lower side wall,
In the floor-standing state, the refrigerant detection unit is mounted in the lower space of the housing, the plurality of legs are mounted on the housing to support the housing from below, and from the suction opening. A first mode in which air below the housing is sucked;
In the floor-standing state, the refrigerant detection unit is mounted in the lower space of the housing, the plurality of legs are removed from the housing, the suction opening is grounded to a floor surface, and the lower side wall is provided. A second mode in which the unit is removed from the housing and air on the lower side of the housing is sucked;
In the wall-mounted state, the refrigerant detection unit is attached below and outside the housing by one of the plurality of legs, and air below the housing is sucked from the suction opening. A third form,
Has,
The indoor unit of the air-conditioning apparatus according to claim 4, wherein the first mode, the second mode, and the third mode are configured to be freely selectable. 前記冷媒検知部は、冷媒を検知するセンサと、前記センサの上側に隣接して配置されて前記センサからの検知情報を前記室内機の制御装置に送信する中継基板と、表面に開口部を有して前記センサを覆うセンサカバーと、前記センサカバーの上側の隣接部にて前記センサカバーよりも平面視にて大きく構成されて表面に開口部の無い状態で前記中継基板を覆う中継基板カバーと、を有する請求項１〜５のいずれか１項に記載の空気調和装置の室内機。   The refrigerant detection unit has a sensor that detects refrigerant, a relay board that is disposed adjacent to the upper side of the sensor and transmits detection information from the sensor to a control device of the indoor unit, and an opening on a surface. A sensor cover that covers the sensor, and a relay board cover that is configured to be larger than the sensor cover in a plan view at an adjacent portion above the sensor cover and covers the relay board in a state where there is no opening on the surface. The indoor unit of the air-conditioning apparatus according to any one of claims 1 to 5, comprising: 請求項１〜６のいずれか１項に記載の空気調和装置の室内機を備える空気調和装置。   An air conditioner comprising the indoor unit of the air conditioner according to any one of claims 1 to 6. 室内機が床置き状態として、冷媒検知部が筐体の下部空間内に取り付けられ、複数の脚部が前記筐体に取り付けられて前記筐体を下方から支持し、前記筐体の下面に設けられる吸込開口部から前記筐体の下方の空気が吸い込まれる第１形態と、
前記室内機が前記床置き状態として、前記冷媒検知部が前記筐体の前記下部空間内に取り付けられ、前記複数の脚部が前記筐体から取り外され、前記吸込開口部が床面に接地され、下部側壁部が前記筐体から取り外されて前記筐体の下部側方の空気が吸い込まれる第２形態と、
前記室内機が壁掛け状態として、前記冷媒検知部が前記複数の脚部のうちの１つの脚部によって前記筐体の下方かつ外方に取り付けられ、前記吸込開口部から前記筐体の下方の空気が吸い込まれる第３形態と、
を有し、
前記第１形態と前記第２形態と前記第３形態とを選択自在に設置される空気調和装置の室内機の設置方法。When the indoor unit is placed on the floor, the refrigerant detection unit is mounted in a lower space of the housing, a plurality of legs are mounted on the housing to support the housing from below, and provided on a lower surface of the housing. A first configuration in which air below the housing is sucked through a suction opening that is provided;
With the indoor unit in the floor-standing state, the refrigerant detection unit is mounted in the lower space of the housing, the plurality of legs are removed from the housing, and the suction opening is grounded to the floor surface. A second configuration in which the lower side wall is removed from the housing and air on the lower side of the housing is sucked;
When the indoor unit is in a wall-mounted state, the refrigerant detection unit is attached to the lower side and the outer side of the housing by one of the plurality of legs, and the air below the housing from the suction opening. A third form in which is sucked;
Has,
An installation method of an indoor unit of an air conditioner, which is installed so that the first mode, the second mode, and the third mode can be selected freely.
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