WO2019030796A1 - Indoor unit of air conditioning apparatus, air conditioning apparatus, and method for installing indoor unit of air conditioning apparatus - Google Patents

Indoor unit of air conditioning apparatus, air conditioning apparatus, and method for installing indoor unit of air conditioning apparatus Download PDF

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Publication number
WO2019030796A1
WO2019030796A1 PCT/JP2017/028580 JP2017028580W WO2019030796A1 WO 2019030796 A1 WO2019030796 A1 WO 2019030796A1 JP 2017028580 W JP2017028580 W JP 2017028580W WO 2019030796 A1 WO2019030796 A1 WO 2019030796A1
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WO
WIPO (PCT)
Prior art keywords
housing
indoor unit
detection unit
refrigerant detection
attached
Prior art date
Application number
PCT/JP2017/028580
Other languages
French (fr)
Japanese (ja)
Inventor
隼治 植田
慎吾 岩月
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.)
Filing date
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 GB1918215.3A priority Critical patent/GB2577826C/en
Priority to JP2019535454A priority patent/JP6800339B2/en
Priority to PCT/JP2017/028580 priority patent/WO2019030796A1/en
Publication of WO2019030796A1 publication Critical patent/WO2019030796A1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/20—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

Definitions

  • the present invention relates to an indoor unit of an air conditioner, an air conditioner, and a method of installing an indoor unit of the air conditioner, the indoor unit including the refrigerant detection unit that detects a leak of the slightly flammable refrigerant.
  • the indoor unit of the air conditioner, the air conditioner, and the indoor of the air conditioner can detect the refrigerant leaked by the refrigerant detector.
  • the purpose is to provide the installation method of the aircraft.
  • An indoor unit of an air conditioning apparatus is an indoor unit of an air conditioning apparatus including an indoor heat exchanger and a blower in a housing, and includes a refrigerant detection unit removable from the housing, The refrigerant detection unit is disposed so as to be selectable between a state of being attached to the inside of the case and a state of being attached to the lower side and the outside of the case.
  • An air conditioner according to the present invention includes an indoor unit of the above-described air conditioner.
  • the refrigerant detecting unit is mounted in the lower space of the housing with the indoor unit being placed on the floor, and a plurality of legs are mounted on the housing.
  • the refrigerant detection unit is configured such that the casing is supported from below and the air in the lower part of the casing is sucked from the suction opening provided in the lower surface of the casing, and the indoor unit is placed on the floor.
  • 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.
  • the refrigerant detection unit is attached to the lower side and the outer side of the housing by one leg of the plurality of legs.
  • a third form square of air is sucked, and is a wherein the first embodiment second embodiment and the third embodiment shall be selected freely provided.
  • the refrigerant detection unit is attached to the inside of the case, and the lower and outer sides of the case And the state of being attached to the. For this reason, even if the indoor unit of the air conditioner is installed at a high position away from the floor surface, the refrigerant detection unit is changed to be attached to the lower side and the outer side of the housing, and the leaked refrigerant concentration becomes high. It can be placed close to the floor surface. Therefore, even if the indoor unit of the air conditioning apparatus is installed at a high position away from the floor surface, the refrigerant detection unit can detect the leaked refrigerant.
  • FIG. 1 It is a schematic block diagram which shows the air conditioning apparatus which concerns on Embodiment 1 of this invention. It is a perspective view which shows the external appearance in the 1st form in the indoor unit of the air conditioning apparatus which concerns on Embodiment 1 of this invention. It is a perspective view which shows the inside in the indoor unit of the air conditioning apparatus which concerns on Embodiment 1 of this invention. It is sectional drawing which shows the inside in the indoor unit of the air conditioning apparatus which concerns on Embodiment 1 of this invention by the longitudinal cross section which a machine room passes. It is sectional drawing which shows the inside in the indoor unit of the air conditioning apparatus which concerns on Embodiment 1 of this invention by the longitudinal cross section which a heat exchanger chamber passes.
  • FIG. 1 It is sectional drawing which shows the inside in the indoor unit of the air conditioning apparatus which concerns on Embodiment 1 of this invention by the left-right longitudinal cross section. It is a perspective view which shows the external appearance in the refrigerant
  • FIG. 1 is a schematic block diagram which shows the air conditioning apparatus 100 which concerns on Embodiment 1 of this invention. As shown in FIG. 1, the air conditioner 100 is configured by connecting the outdoor unit 8 and the indoor unit 10 by piping.
  • the pipe connecting the outdoor unit 8 and the indoor unit 10 is filled with a refrigerant for transferring heat.
  • a refrigerant for transferring heat.
  • cooling or heating can be performed on the indoor space in which the indoor unit 10 is disposed.
  • a slightly flammable refrigerant heavier than air can be exemplified.
  • the outdoor unit 8 includes a compressor 1, an outdoor heat exchanger 3, an expansion valve 4, a four-way valve 2, and an outdoor blower fan 6.
  • the indoor unit 10 includes an indoor heat exchanger 5 and a sirocco fan 7 which is a blower for the room.
  • FIG. 2 is a perspective view which shows the external appearance in the 1st form in the indoor unit 10 of the air conditioning apparatus 100 which concerns on Embodiment 1 of this invention.
  • FIG. 3 is a perspective view which shows the inside in the indoor unit 10 of the air conditioning apparatus 100 which concerns on Embodiment 1 of this invention.
  • FIG. 4 is a cross-sectional view showing the inside of the indoor unit 10 of the air conditioning apparatus 100 according to Embodiment 1 of the present invention in the longitudinal cross section through which the machine room 20 passes.
  • FIG. 5 is sectional drawing which shows the inside in the indoor unit 10 of the air conditioning apparatus 100 which concerns on Embodiment 1 of this invention by the longitudinal cross section through which the heat exchanger room 24 passes.
  • FIG. 6 is a cross-sectional view showing the inside of the indoor unit 10 of the air conditioning apparatus 100 according to Embodiment 1 of the present invention in a left-right vertical cross section.
  • the indoor unit 10 of the air conditioner 100 is a floor-mounted indoor unit that is grounded and attached to the floor surface of the room. Moreover, the indoor unit 10 can also be used not only in a floor-standing state but in a wall-hanging state as described later.
  • the installation state of the indoor unit 10 will be described below as a first form, a second form and a third form, respectively.
  • 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 12 a, 12 b is removable from the housing 11.
  • the indoor unit 10 is placed on the floor, and the pair of leg portions 12 a and 12 b is screwed and attached to the housing 11 to support the housing 11 from below.
  • the housing 11 supported by the pair of legs 12 a and 12 b secures a gap between the lower surface of the housing 11 and the floor surface.
  • the pair of legs 12a and 12b may be three or more legs.
  • the lower side wall portion 13 on the front side covers the lower space 15 of the casing 11 and is removable from the casing 11.
  • the indoor unit 10 includes an indoor heat exchanger 5 and a sirocco fan 7 inside the housing 11.
  • the indoor unit 10 has an upper space 14 in which the indoor heat exchanger 5 is disposed inside the housing 11.
  • the indoor unit 10 has a lower space 15 in which the sirocco fan 7 is disposed inside the housing 11.
  • the upper space 14 and the lower space 15 are separated by a fan plate 16.
  • 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 the top of the upper space 14 of the housing 11.
  • a suction opening 18 is provided on the lower surface of the housing 11. The suction opening 18 opens at the lower part of the lower space 15 of the housing 11.
  • the indoor unit 10 is provided with a wall bracket 19 that supports the indoor unit 10 in a wall-mounted state.
  • the wall hook 19 is screwed to the housing 11.
  • the wall mounting bracket 19 may be removed when the indoor unit 10 as shown in FIG. 2 is placed on the floor.
  • a machine room 20 is provided on the right side in the upper space 14 of the casing 11 of the indoor unit 10 in which a group of pipes for circulating the refrigerant between the indoor heat exchanger 5 and the outdoor unit 8 is combined.
  • the machine room 20 is partitioned by an upper space 14 in which the indoor heat exchanger 5 is disposed and two partition plates 21 a and 21 b.
  • a drain pan 22 for receiving drain water dripping condensed water or the like on the upper side of the fan plate 16 is disposed.
  • 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 in, and controls the rotational speed of the sirocco fan 7 and the like.
  • a refrigerant detection unit 30 is provided on the inner right side of the housing 11 of the indoor unit 10 below the control device 23 in the lower space 15.
  • the refrigerant detection unit 30 is removable with respect to the housing 11 and the like.
  • 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 in the inside of the casing 11 of the indoor unit 10.
  • the indoor heat exchanger 5 and the drain pan 25 are arranged.
  • the indoor heat exchanger 5 is disposed with its lower portion extending to the front side of the indoor unit 10 and its upper portion tilted to 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 to the locking member 26.
  • a sirocco fan 7 is disposed 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 projects the air outlet 7 a from the opening of the fan plate 16 and blows out air drawn from the lower space 15 into the upper space 14.
  • sirocco fans 7 are arranged in parallel in the left-right direction of the housing 11.
  • the drain pan 25 of the heat exchanger chamber 24 is disposed above the drain pan 22 of the machine chamber 20.
  • the drain water accumulated in the drain pan 25 of the heat exchanger chamber 24 flows to the drain pan 22 of the machine chamber 20, and drain water is drained from a drainage portion (not shown) provided in the drain pan 22 of the machine chamber 20.
  • the number of sirocco fans 7 is four.
  • the number of sirocco fans 7 is not limited.
  • the number of sirocco fans 7 may be two or three.
  • FIG. 7 is a perspective view showing 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 the first embodiment of the present invention.
  • the refrigerant detection unit 30 includes a sensor 31, a relay substrate 32, a sensor cover 33, a relay substrate cover 34, and an attachment member 35.
  • the sensor 31 detects the refrigerant that has leaked into the room.
  • the relay substrate 32 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 sensor cover 33 has a plurality of slits 36 which are openings in the surfaces of 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 substrate cover 34 is larger than the sensor cover 33 at the upper adjacent portion of the sensor cover 33, and covers the relay substrate 32 in a completely sealed state with no opening on the surface.
  • the mounting member 35 holds the sensor 31, the relay substrate 32, the sensor cover 33, and the relay substrate cover 34.
  • the attachment 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. .
  • the refrigerant detection unit 30 is removable 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 casing 11 of the indoor unit 10. May be
  • the refrigerant detection unit 30 may be installed on a wall surface indoors separately from the indoor unit 10.
  • the refrigerant detection unit 30 and the indoor unit 10 may be separated by a distance that allows relay wiring (not shown) to be connected.
  • the refrigerant detection unit 30 is fixed to the side wall portion next to the sirocco fan 7 in the lower space 15 of the housing 11.
  • 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.
  • the configuration of the refrigerant detection unit 30 is not limited to this, and may be various configurations.
  • the refrigerant detection unit 30 may be disposed at a position distant from the indoor unit 10 by wiring or wireless.
  • adopts the structure attached to one leg part 12a.
  • the present invention is not limited to this, and the refrigerant detection unit 30 similar to that may be attached to the lower side and the outer side of the indoor unit 10 using a fixable member.
  • 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.
  • the refrigerant detection unit 30 is attached in the lower space 15 of the housing 11 of the indoor unit 10.
  • the pair of legs 12 a and 12 b is attached to the housing 11 and supports the housing 11 from below.
  • the air below the casing 11 is sucked from the suction opening 18 provided on the lower surface of the casing 11.
  • the pair of leg portions 12a and 12b is attached to the housing 11 to support the housing 11 from below.
  • the wall mount 19 is removed from the housing 11.
  • the lower side wall portion 13 covers the lower space 15 of the housing 11.
  • the air under 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 shown by the arrow A shown in FIG. It is sucked into the lower space 15 from the suction opening 18. The air sucked into the lower space 15 is pushed out by the sirocco fan 7 into the upper space 14. 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 out into the room from a blowout opening 17 provided on the top surface of the housing 11 as indicated by an arrow B shown in FIG.
  • FIG. 9 is a front view which shows the external appearance in the 2nd form in the indoor unit 10 of the air conditioning apparatus 100 which concerns on Embodiment 1 of this invention.
  • 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.
  • the refrigerant detection unit 30 is attached in the lower space 15 of the housing 11.
  • the pair of legs 12 a and 12 b are removed from the housing 11.
  • the suction opening 18 is grounded to the floor surface.
  • 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 that sucks the air on the lower side of the housing 11.
  • the wall hook 19 may be removed from the housing 11.
  • the air in front of the housing 11 is drawn into the lower space 15 from the front opening 27 from which the lower side wall 13 is removed, as shown by the arrow A shown in FIG.
  • the air sucked into the lower space 15 is pushed out by the sirocco fan 7 into the upper space 14.
  • 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 out into the room from a blowout opening 17 provided on the top surface of the housing 11 as indicated by an arrow B shown in FIG.
  • the indoor unit 10 can be switched from the lower suction mode to the front suction mode by replacing the lower side wall portion 13 with the filter.
  • the refrigerant detection unit 30 can be installed at a position near the lower space 15 inside the housing 11 and a floor surface where refrigerant leakage can be easily detected.
  • FIG. 10 is a front view which shows the external appearance in the 3rd form in the indoor unit 10 of the air conditioning apparatus 100 which concerns on Embodiment 1 of this invention.
  • the indoor unit 10 shown in FIG. 10 is a third embodiment.
  • the indoor unit 10 is in a wall-mounted state.
  • the refrigerant detection unit 30 is attached to the lower side and the outer side of the housing 11 by one leg 12a of the pair of legs 12a and 12b.
  • the air below the housing 11 is sucked from the suction opening 18.
  • one leg 12a of the pair of legs 12a and 12b attaches the refrigerant detection unit 30 to the lower side and the outer side of the housing 11, and the other one 1
  • the two legs 12 b are removed from the housing 11.
  • the wall mounting bracket 19 supports the indoor unit 10 in a wall mounted state fixed to the wall.
  • the air under the housing 11 is drawn 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.
  • the air sucked into the lower space 15 is pushed out by the sirocco fan 7 into the upper space 14.
  • 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 from a blowout opening 17 provided on the top surface of the housing 11 as indicated by an arrow B shown in FIG.
  • the indoor unit 10 of the air conditioning apparatus 100 is arrange
  • the indoor unit 10 of the air conditioner 100 includes the indoor heat exchanger 5 and the sirocco fan 7 as a blower inside the housing 11.
  • the indoor unit 10 of the air conditioning apparatus 100 includes a removable refrigerant detection unit 30.
  • the refrigerant detection unit 30 is disposed so as to be selectable between a state of being attached to the inside of the case 11 and a state of being attached to the lower side and the outside of the case 11.
  • the refrigerant detection unit 30 is changed to be attached to the lower side and the outer side of the housing 11; It can be arranged close to the floor surface where the refrigerant concentration is high. Therefore, even if the indoor unit 10 of the air conditioning apparatus 100 is installed at a high position away from the floor surface, the refrigerant detection unit 30 can detect the refrigerant that has leaked.
  • the indoor unit 10 includes the upper space 14 in which the indoor heat exchanger 5 is disposed in the housing 11 and the lower portion in which the sirocco fan 7 as a blower is disposed in the housing 11. And a space 15.
  • the indoor unit 10 is disposed so as to be selectable between the floor standing state and the wall hanging state.
  • the refrigerant detection unit 30 is attached to the lower side and the outer side of the housing 11 when the indoor unit 10 is mounted on the floor and is attached to the lower space 15 of the housing 11 and when the indoor unit 10 is mounted on a wall And the selectable state.
  • the refrigerant detection unit 30 is attached to the lower side and the outer side of the housing 11 Can be placed close to the floor surface where the refrigerant concentration is high. Therefore, even if the indoor unit 10 of the air conditioning apparatus 100 is hung on a wall and installed at a high position away from the floor surface, the refrigerant detection unit 30 can detect the refrigerant that has leaked.
  • the indoor unit 10 is provided with the wall hook 19 supported in a wall hanging state.
  • the indoor unit 10 of the air conditioning apparatus 100 is a floor-standing type, it can be installed in a wall-hanging state by the wall-hanging fitting 19.
  • the casing 11 is provided with the pair of removable legs 12a and 12b.
  • the pair of legs 12a and 12b are attached to the housing 11 to support the housing 11 from below when the indoor unit 10 is placed on the floor, and when the indoor unit 10 is mounted on a wall, the refrigerant A state in which the detection unit 30 is attached to the lower side and the outer side of the housing 11 is selectively arranged.
  • the refrigerant detection unit 30 can be housed by any one of the legs 12a and 12b. It is changed to be attached to the lower side and the outer side of the body 11, and it can be disposed close to the floor surface where the refrigerant concentration becomes high. Therefore, even if the indoor unit 10 of the air conditioning apparatus 100 is hung on a wall and installed at a high position away from the floor surface, the refrigerant detection unit 30 can detect the refrigerant that has leaked.
  • a gap can be secured at 18 to allow air to be drawn from below.
  • the refrigerant detection unit 30 is attached to any one of the legs 12a and 12b of the pair of legs 12a and 12b, and the refrigerant detection unit 30 is changed to be attached to the lower side and the outer side of the housing 11 by any one of the legs 12a, 12b.
  • 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 the indoor unit 10 is placed on the wall.
  • the housing 11 has the blowout opening 17 opened at the upper part of the 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 covers the lower space 15 of the housing 11 and has a lower side wall portion 13 removable from the housing 11.
  • the refrigerant detection unit 30 is mounted in the lower space 15 of the housing 11 and the pair of leg portions 12a and 12b are mounted on the housing 11 to support the housing 11 from below as a floor-standing state And has a first form in which the air below the housing 11 is sucked from the suction opening 18.
  • the refrigerant detection unit 30 is mounted in the lower space 15 of the housing 11, the pair of legs 12a and 12b are removed from the housing 11, and the suction opening 18 is a floor surface. , And the lower side wall portion 13 is removed from the housing 11 so that air on the lower side of the housing 11 is sucked.
  • the refrigerant detection unit 30 is attached to the lower side and the outer side of the housing 11 by the one leg 12a of the pair of legs 12a and 12b in a wall hanging state, 11 has a third form in which the lower air is sucked.
  • the indoor unit 10 is disposed so as to be selectable between the first form, the second form and the third form.
  • the indoor unit 10 of the air conditioning apparatus 100 is disposed in the wall hanging state which is the third mode in which the indoor unit 10 is installed at a high position apart from the floor surface unlike the floor standing state of the first and second modes. Be done.
  • the refrigerant detection unit 30 is changed to a state of being attached to the lower side and the outer side of the housing 11 by one leg 12a, and can be arranged close to the floor surface where the refrigerant concentration becomes high. Therefore, even if the indoor unit 10 of the air conditioning apparatus 100 is hung on a wall and installed at a high position away from the floor surface, the refrigerant detection unit 30 can detect the refrigerant that has leaked.
  • the refrigerant detection unit 30 includes the sensor 31 that detects the refrigerant.
  • the refrigerant detection unit 30 includes a relay substrate 32 which 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 covers the sensor 31 with a plurality of slits 36 as an opening on the surface.
  • the refrigerant detection unit 30 is configured to be larger in plan view than the sensor cover 33 at the upper adjacent portion of the sensor cover 33, and has a relay substrate cover 34 that covers the relay substrate 32 in a state without an opening on the surface.
  • 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.
  • the plurality of slits 36 opened in the sensor cover 33 is a liquid such as condensed water from above by the relay substrate cover 34 which is larger in plan view than the sensor cover 33 at the upper adjacent portion of the sensor cover 33 Is prevented from entering.
  • the sensor 31 of the refrigerant detection unit 30 can be prevented from getting wet due to the liquid because the liquid does not infiltrate from above the refrigerant detection unit 30 and failure.
  • the air conditioning apparatus 100 includes the indoor unit 10 of the air conditioning apparatus 100.
  • the refrigerant detection unit 30 is changed to be attached to the lower side and the outer side of the housing 11; It can be arranged close to the floor surface where the refrigerant concentration is high. Therefore, even if the indoor unit 10 of the air conditioning apparatus 100 is installed at a high position away from the floor surface, the refrigerant detection unit 30 can detect the refrigerant that has leaked.
  • the refrigerant detection unit 30 is mounted in the lower space 15 of the housing 11 with the indoor unit 10 set on the floor,
  • the legs 12a and 12b are attached to the housing 11 to support the housing 11 from below and have a first form in which air in the lower part of the housing 11 is sucked from the suction opening 18 provided on the lower surface of the housing 11. .
  • the refrigerant detection unit 30 is mounted in the lower space 15 of the housing 11 with the indoor unit 10 being placed on the floor, and the pair of leg portions 12a and 12b is a housing 11, the suction opening 18 is grounded to the floor surface, and the lower side wall 13 is removed from the housing 11 so that the air on the lower side of the housing 11 is sucked.
  • the refrigerant detection unit 30 is located below and outside of the housing 11 by one of the legs 12a and 12b. And has a third form in which the air below the housing 11 is sucked from the suction opening 18.
  • the indoor unit 10 is installed so as to be selectable between the first form, the second form and the third form.
  • the indoor unit 10 of the air conditioning apparatus 100 is disposed in the wall hanging state which is the third mode in which the indoor unit 10 is installed at a high position apart from the floor surface unlike the floor standing state of the first and second modes. Be done.
  • the refrigerant detection unit 30 is changed to a state of being attached to the lower side and the outer side of the housing 11 by one leg 12a, and can be arranged close to the floor surface where the refrigerant concentration becomes high. Therefore, even if the indoor unit 10 of the air conditioning apparatus 100 is hung on a wall and installed at a high position away from the floor surface, the refrigerant detection unit 30 can detect the refrigerant that has leaked.
  • SYMBOLS 1 compressor 2 four-way valve, 3 outdoor heat exchanger, 4 expansion valve, 5 indoor heat exchanger, 6 outdoor ventilation 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 fitting, 20 machine room, 21a partition plate, 21b partition plate, Reference Signs List 22 drain pan, 23 control device, 24 heat exchanger chamber, 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.

Abstract

This indoor unit of an air conditioning apparatus has provided, in a housing thereof, an indoor heat exchanger, and an air blower, and is provided with a refrigerant detection part that can be removed from the housing, wherein the refrigerant detection part is disposed so as to be capable of selectively assuming either a state of being mounted inside the housing or a state of being mounted to the lower external side of the housing.

Description

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Air conditioner indoor unit, air conditioner, and method of installing indoor unit of air conditioner
　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 indoor unit of an air conditioner, an air conditioner, and a method of installing an indoor unit of the air conditioner, the indoor unit including the refrigerant detection unit that detects a leak of the 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 the specified concentration when leakage of the slightly flammable refrigerant occurs. For this reason, it is necessary to detect the leakage of the refrigerant at the time of the leakage of the slightly flammable refrigerant (see, for example, Patent Document 1).
国際公開第２０１６／００９６６７号International Publication No. 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 a refrigerant detection unit in the indoor unit of the floor-standing air conditioner. However, when the indoor unit is installed at a high position as a wall hanging type or the like, even if the refrigerant detection unit is installed at the lower part inside the indoor unit, the floor surface where the slightly flammable refrigerant heavier than air tends to stay There is a problem that the distance between the
　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。 According to the present invention, even if the indoor unit of the air conditioner is installed at a high position away from the floor surface, the indoor unit of the air conditioner, the air conditioner, and the indoor of the air conditioner can detect the refrigerant leaked by the refrigerant detector. The purpose is to provide the installation method of the aircraft.
　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。 An indoor unit of an air conditioning apparatus according to the present invention is an indoor unit of an air conditioning apparatus including an indoor heat exchanger and a blower in a housing, and includes a refrigerant detection unit removable from the housing, The refrigerant detection unit is disposed so as to be selectable between a state of being attached to the inside of the case and a state of being attached to the lower side and the outside of the case.
　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 an indoor unit of the above-described 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 of installing the indoor unit of the air conditioning apparatus according to the present invention, the refrigerant detecting unit is mounted in the lower space of the housing with the indoor unit being placed on the floor, and a plurality of legs are mounted on the housing. The refrigerant detection unit is configured such that the casing is supported from below and the air in the lower part of the casing is sucked from the suction opening provided in the lower surface of the casing, and the indoor unit is placed on the floor. 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. In the second mode in which the lower side air of the lower side is sucked, and the indoor unit is mounted on the wall, the refrigerant detection unit is attached to the lower side and the outer side of the housing by one leg of the plurality of legs. Of the housing from the suction opening A third form square of air is sucked, and is a wherein the 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 conditioning apparatus, the air conditioning apparatus, and the installation method of the indoor unit of the air conditioning apparatus according to the present invention, the refrigerant detection unit is attached to the inside of the case, and the lower and outer sides of the case And the state of being attached to the. For this reason, even if the indoor unit of the air conditioner is installed at a high position away from the floor surface, the refrigerant detection unit is changed to be attached to the lower side and the outer side of the housing, and the leaked refrigerant concentration becomes high. It can be placed close to the floor surface. Therefore, even if the indoor unit of the air conditioning apparatus is installed at a high position away from the floor surface, 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。It is a schematic block diagram which shows the air conditioning apparatus 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第１形態での外観を示す斜視図である。It is a perspective view which shows the external appearance in the 1st form in the indoor unit of the air conditioning apparatus 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示す斜視図である。It is a perspective view which shows the inside in the indoor unit of the air conditioning apparatus 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 in the indoor unit of the air conditioning apparatus which concerns on Embodiment 1 of this invention by the 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 in the indoor unit of the air conditioning apparatus which concerns on Embodiment 1 of this invention by the longitudinal cross section which a heat exchanger chamber 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。It is sectional drawing which shows the inside in the indoor unit of the air conditioning apparatus which concerns on Embodiment 1 of this invention by the left-right longitudinal 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。It is a perspective view which shows the external appearance in the refrigerant | coolant detection part which concerns on Embodiment 1 of this 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。It is a perspective view which shows the inside in the refrigerant | coolant detection part 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第２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 2nd form in the indoor unit of the air conditioning apparatus 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 conditioning apparatus 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 based on the drawings. In the drawings, the same reference numerals denote the same or corresponding parts, which are common to the whole text of the specification. Furthermore, the form of the component shown in the specification full text is an illustration to the last, and 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
<Configuration of Air Conditioner 100>
FIG. 1: is a schematic block diagram which shows the air conditioning apparatus 100 which concerns on Embodiment 1 of this invention. As shown in FIG. 1, the air conditioner 100 is configured by connecting the outdoor unit 8 and the 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。 The pipe connecting the outdoor unit 8 and the indoor unit 10 is filled with a refrigerant for transferring heat. By circulating the refrigerant between the outdoor unit 8 and the indoor unit 10, cooling or heating can be performed on the indoor space in which the indoor unit 10 is disposed. As the type of refrigerant, a slightly flammable refrigerant heavier than air can be exemplified.
　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 a compressor 1, an outdoor heat exchanger 3, an expansion valve 4, a four-way valve 2, and an outdoor blower fan 6. The indoor unit 10 includes an indoor heat exchanger 5 and a sirocco fan 7 which is a blower for the room.
＜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 Conditioning Device 100>
FIG. 2: is a perspective view which shows the external appearance in the 1st form in the indoor unit 10 of the air conditioning apparatus 100 which concerns on Embodiment 1 of this invention. FIG. 3: is a perspective view which shows the inside in the indoor unit 10 of the air conditioning apparatus 100 which concerns on Embodiment 1 of this invention. FIG. 4 is a cross-sectional view showing the inside of the indoor unit 10 of the air conditioning apparatus 100 according to Embodiment 1 of the present invention in the longitudinal cross section through which the machine room 20 passes. FIG. 5: is sectional drawing which shows the inside in the indoor unit 10 of the air conditioning apparatus 100 which concerns on Embodiment 1 of this invention by the longitudinal cross section through which the heat exchanger room 24 passes. FIG. 6 is a cross-sectional view showing the inside of the indoor unit 10 of the air conditioning apparatus 100 according to Embodiment 1 of the present invention in a left-right vertical cross 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 conditioner 100 is a floor-mounted indoor unit that is grounded and attached to the floor surface of the room. Moreover, the indoor unit 10 can also be used not only in a floor-standing state but in a wall-hanging state as described later. The installation state of the indoor unit 10 will be described below as a first form, a second form and a third form, 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 12 a, 12 b is removable from the housing 11. In FIG. 2, the indoor unit 10 is placed on the floor, and the pair of leg portions 12 a and 12 b is screwed and attached to the housing 11 to support the housing 11 from below. The housing 11 supported by the pair of legs 12 a and 12 b secures a gap between the lower surface of the housing 11 and the floor surface. 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。 Among the side wall portions constituting the casing 11 shown in FIG. 2, the lower side wall portion 13 on the front side covers the lower space 15 of the casing 11 and is removable from the casing 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 an indoor heat exchanger 5 and a sirocco fan 7 inside the housing 11. The indoor unit 10 has an upper space 14 in which the indoor heat exchanger 5 is disposed inside the housing 11. The indoor unit 10 has a lower space 15 in which the sirocco fan 7 is disposed 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 the top of the upper space 14 of the housing 11. In the indoor unit 10, a suction opening 18 is provided on the lower surface of the housing 11. The suction opening 18 opens at the lower part 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 is provided with a wall bracket 19 that supports the indoor unit 10 in a wall-mounted state. The wall hook 19 is screwed to the housing 11. The wall mounting bracket 19 may be removed when the indoor unit 10 as shown in FIG. 2 is placed on the floor.
　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, a machine room 20 is provided on the right side in the upper space 14 of the casing 11 of the indoor unit 10 in which a group of pipes for circulating the refrigerant between the indoor heat exchanger 5 and the outdoor unit 8 is combined. Be The machine room 20 is partitioned by an upper space 14 in which the indoor heat exchanger 5 is disposed and two partition plates 21 a and 21 b. In the machine room 20, a drain pan 22 for receiving drain water dripping condensed water or the like on the upper side of the fan plate 16 is disposed.
　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 in, and controls the rotational 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 inner right side of the housing 11 of the indoor unit 10 below the control device 23 in the lower space 15. The refrigerant detection unit 30 is removable with respect to 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 in the inside of the casing 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 disposed with its lower portion extending to the front side of the indoor unit 10 and its upper portion tilted to 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 to 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。 A sirocco fan 7 is disposed 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 projects the air outlet 7 a from the opening of the fan plate 16 and blows out air drawn 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 in parallel in the left-right direction of the housing 11. The drain pan 25 of the heat exchanger chamber 24 is disposed above the drain pan 22 of the machine chamber 20. The drain water accumulated in the drain pan 25 of the heat exchanger chamber 24 flows to the drain pan 22 of the machine chamber 20, and drain water is drained from a drainage portion (not shown) provided in the drain pan 22 of the machine chamber 20. Here, the number of sirocco fans 7 is 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 showing 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 the first embodiment 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 substrate 32, a sensor cover 33, a relay substrate cover 34, and an attachment 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 that has leaked into the room. The relay substrate 32 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 sensor cover 33 has a plurality of slits 36 which are openings in the surfaces of 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 substrate cover 34 is larger than the sensor cover 33 at the upper adjacent portion of the sensor cover 33, and covers the relay substrate 32 in a completely sealed state with no opening on the surface. Since the relay substrate cover 34 is larger than the sensor cover 33 in plan view, condensed water or the like dropped to the refrigerant detection unit 30 does not enter the plurality of slits 36 and is received by the relay substrate cover 34. The mounting member 35 holds the sensor 31, the relay substrate 32, the sensor cover 33, and the relay substrate cover 34. The attachment 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 removable 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 casing 11 of the indoor unit 10. May be
　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。 The refrigerant detection unit 30 may be installed on a wall surface indoors separately from the indoor unit 10. The refrigerant detection unit 30 and the indoor unit 10 may be separated by a distance that allows relay wiring (not shown) to be connected.
　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 portion next 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 the first embodiment, 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。 In addition, the refrigerant detection unit 30 may be disposed at a position distant from the indoor unit 10 by wiring or wireless.
　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。 Moreover, the refrigerant | coolant detection part 30 employ | adopts the structure attached to one leg part 12a. However, the present invention is not limited to this, and the refrigerant detection unit 30 similar to that may be attached to the lower side and the outer side of the indoor unit 10 using a fixable member.
＜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 embodiment>
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 attached in the lower space 15 of the housing 11 of the indoor unit 10. In the first embodiment, the pair of legs 12 a and 12 b is attached to the housing 11 and supports the housing 11 from below. In the first embodiment, the air below the casing 11 is sucked from the suction opening 18 provided on the lower surface of the casing 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。 When the indoor unit 10 is placed on the floor, the pair of leg portions 12a and 12b is attached to the housing 11 to support the housing 11 from below. The wall mount 19 is removed from the housing 11. The lower side wall portion 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 under 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 shown by the arrow A shown in FIG. It is sucked into the lower space 15 from the suction opening 18. The air sucked into the lower space 15 is pushed out by the sirocco fan 7 into the upper space 14. 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 out into the room from a blowout opening 17 provided on the top surface of the housing 11 as indicated by an arrow B shown 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, the second embodiment will be described. FIG. 9: is a front view which shows the external appearance in the 2nd form in the indoor unit 10 of the air conditioning apparatus 100 which concerns on Embodiment 1 of this invention.
　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 attached in the lower space 15 of the housing 11. In the second embodiment, the pair of legs 12 a and 12 b are removed from the housing 11. In the second embodiment, the suction opening 18 is grounded to the floor surface. 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 that sucks the air on 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。 The wall hook 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 drawn into the lower space 15 from the front opening 27 from which the lower side wall 13 is removed, as shown by the arrow A shown in FIG. The air sucked into the lower space 15 is pushed out by the sirocco fan 7 into the upper space 14. 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 out into the room from a blowout opening 17 provided on the top surface of the housing 11 as indicated by an arrow B shown 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。 Thus, the indoor unit 10 can be switched from the lower suction mode to the front suction mode by replacing the lower side wall portion 13 with the filter. At this time, the refrigerant detection unit 30 can be installed at a position near the lower space 15 inside the housing 11 and a floor surface where refrigerant leakage can be easily detected.
＜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, the third embodiment will be described. FIG. 10: is a front view which shows the external appearance in the 3rd form in the indoor unit 10 of the air conditioning apparatus 100 which concerns on Embodiment 1 of this invention.
　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 embodiment, the indoor unit 10 is in a wall-mounted state. In the third embodiment, the refrigerant detection unit 30 is attached to the lower side and the outer side 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 embodiment in which the indoor unit 10 is wall-mounted, one leg 12a of the pair of legs 12a and 12b attaches the refrigerant detection unit 30 to the lower side and the outer side of the housing 11, and the other one 1 The two legs 12 b are removed from the housing 11. The wall mounting bracket 19 supports the indoor unit 10 in a wall mounted state fixed to the 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 under the housing 11 is drawn 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. The air sucked into the lower space 15 is pushed out by the sirocco fan 7 into the upper space 14. 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 from a blowout opening 17 provided on the top surface of the housing 11 as indicated by an arrow B shown 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 mentioned above, as for the indoor unit 10 of the air conditioning apparatus 100, the indoor unit 10 is arrange | positioned so that a 1st form, a 2nd form, and a 3rd form can be selected freely. And even if the indoor unit 10 is changed into these forms, since the refrigerant | coolant detection part 30 is removable, the refrigerant | coolant detection part 30 may be attached to the downward direction of the housing | casing 11, and outward. Therefore, the refrigerant detection unit 30 can be installed at a position close to the floor surface, and the detection performance for 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 Embodiment 1>
According to the first embodiment, the indoor unit 10 of the air conditioner 100 includes the indoor heat exchanger 5 and the sirocco fan 7 as a blower inside the housing 11. The indoor unit 10 of the air conditioning apparatus 100 includes a removable refrigerant detection unit 30. The refrigerant detection unit 30 is disposed so as to be selectable between a state of being attached to the inside of the case 11 and a state of being attached to the lower side and the outside of the case 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 surface, the refrigerant detection unit 30 is changed to be attached to the lower side and the outer side of the housing 11; It can be arranged close to the floor surface where the refrigerant concentration is high. Therefore, even if the indoor unit 10 of the air conditioning apparatus 100 is installed at a high position away from the floor surface, the refrigerant detection unit 30 can detect the refrigerant that has leaked.
　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, the indoor unit 10 includes the upper space 14 in which the indoor heat exchanger 5 is disposed in the housing 11 and the lower portion in which the sirocco fan 7 as a blower is disposed in the housing 11. And a space 15. The indoor unit 10 is disposed so as to be selectable between the floor standing state and the wall hanging state. The refrigerant detection unit 30 is attached to the lower side and the outer side of the housing 11 when the indoor unit 10 is mounted on the floor and is attached to the lower space 15 of the housing 11 and when the indoor unit 10 is mounted on a wall And the selectable state.
　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 if the indoor unit 10 of the air conditioning apparatus 100 is disposed in a wall-mounted state installed at a high position away from the floor surface, the refrigerant detection unit 30 is attached to the lower side and the outer side of the housing 11 Can be placed close to the floor surface where the refrigerant concentration is high. Therefore, even if the indoor unit 10 of the air conditioning apparatus 100 is hung on a wall and installed at a high position away from the floor surface, the refrigerant detection unit 30 can detect the refrigerant that has leaked.
　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 the first embodiment, the indoor unit 10 is provided with the wall hook 19 supported in a wall hanging 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 conditioning apparatus 100 is a floor-standing type, it can be installed in a wall-hanging state by the wall-hanging fitting 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 casing 11 is provided with the pair of removable legs 12a and 12b. The pair of legs 12a and 12b are attached to the housing 11 to support the housing 11 from below when the indoor unit 10 is placed on the floor, and when the indoor unit 10 is mounted on a wall, the refrigerant A state in which the detection unit 30 is attached to the lower side and the outer side of the housing 11 is selectively arranged.
　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 disposed in a wall-mounted state installed at a high position away from the floor surface, the refrigerant detection unit 30 can be housed by any one of the legs 12a and 12b. It is changed to be attached to the lower side and the outer side of the body 11, and it can be disposed close to the floor surface where the refrigerant concentration becomes high. Therefore, even if the indoor unit 10 of the air conditioning apparatus 100 is hung on a wall and installed at a high position away from the floor surface, the refrigerant detection unit 30 can detect the refrigerant that has leaked.
　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 conditioning apparatus 100 is installed on the floor in a floor-mounted state, the suction opening formed in the lower surface of the housing 11 by the pair of legs 12a and 12b. A gap can be secured at 18 to allow air to be drawn from below. Then, when the indoor unit 10 of the air conditioning apparatus 100 is disposed in a wall-mounted state, the refrigerant detection unit 30 is attached to any one of the legs 12a and 12b of the pair of legs 12a and 12b, and the refrigerant detection unit 30 is changed to be attached to the lower side and the outer side of the housing 11 by any one of the legs 12a, 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 the indoor unit 10 is placed 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, the housing 11 has the blowout opening 17 opened at the upper part of the 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 covers the lower space 15 of the housing 11 and has a lower side wall portion 13 removable from the housing 11. In the indoor unit 10, the refrigerant detection unit 30 is mounted in the lower space 15 of the housing 11 and the pair of leg portions 12a and 12b are mounted on the housing 11 to support the housing 11 from below as a floor-standing state And has a first form in which the air below the housing 11 is sucked from the suction opening 18. In the indoor unit 10, the refrigerant detection unit 30 is mounted in the lower space 15 of the housing 11, the pair of legs 12a and 12b are removed from the housing 11, and the suction opening 18 is a floor surface. , And the lower side wall portion 13 is removed from the housing 11 so that air on the lower side of the housing 11 is sucked. In the indoor unit 10, the refrigerant detection unit 30 is attached to the lower side and the outer side of the housing 11 by the one leg 12a of the pair of legs 12a and 12b in a wall hanging state, 11 has a third form in which the lower air is sucked. The indoor unit 10 is disposed so as to be selectable between the first form, the second form and the third form.
　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 conditioning apparatus 100 is disposed in the wall hanging state which is the third mode in which the indoor unit 10 is installed at a high position apart from the floor surface unlike the floor standing state of the first and second modes. Be done. In the case of the third embodiment, the refrigerant detection unit 30 is changed to a state of being attached to the lower side and the outer side of the housing 11 by one leg 12a, and can be arranged close to the floor surface where the refrigerant concentration becomes high. Therefore, even if the indoor unit 10 of the air conditioning apparatus 100 is hung on a wall and installed at a high position away from the floor surface, the refrigerant detection unit 30 can detect the refrigerant that has leaked.
　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, the refrigerant detection unit 30 includes the sensor 31 that detects the refrigerant. The refrigerant detection unit 30 includes a relay substrate 32 which 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 covers the sensor 31 with a plurality of slits 36 as an opening on the surface. The refrigerant detection unit 30 is configured to be larger in plan view than the sensor cover 33 at the upper adjacent portion of the sensor cover 33, and has a relay substrate cover 34 that covers the relay substrate 32 in a state without an 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 is a liquid such as condensed water from above by the relay substrate cover 34 which is larger in plan view than the sensor cover 33 at the upper adjacent portion of the sensor cover 33 Is prevented from entering. As a result, the sensor 31 of the refrigerant detection unit 30 can be prevented from getting wet due to the liquid because the liquid does not infiltrate from above the refrigerant detection unit 30 and failure.
　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 the first embodiment, the air conditioning apparatus 100 includes the indoor unit 10 of the air conditioning apparatus 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 surface, the refrigerant detection unit 30 is changed to be attached to the lower side and the outer side of the housing 11; It can be arranged close to the floor surface where the refrigerant concentration is high. Therefore, even if the indoor unit 10 of the air conditioning apparatus 100 is installed at a high position away from the floor surface, the refrigerant detection unit 30 can detect the refrigerant that has leaked.
　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 the first embodiment, in the method of installing the indoor unit 10 of the air conditioning apparatus 100, the refrigerant detection unit 30 is mounted in the lower space 15 of the housing 11 with the indoor unit 10 set on the floor, The legs 12a and 12b are attached to the housing 11 to support the housing 11 from below and have a first form in which air in the lower part of the housing 11 is sucked from the suction opening 18 provided on the lower surface of the housing 11. . In the installation method of the indoor unit 10 of the air conditioning apparatus 100, the refrigerant detection unit 30 is mounted in the lower space 15 of the housing 11 with the indoor unit 10 being placed on the floor, and the pair of leg portions 12a and 12b is a housing 11, the suction opening 18 is grounded to the floor surface, and the lower side wall 13 is removed from the housing 11 so that the air on the lower side of the housing 11 is sucked. In the method of installing the indoor unit 10 of the air conditioner 100, with the indoor unit 10 in a wall-mounted state, the refrigerant detection unit 30 is located below and outside of the housing 11 by one of the legs 12a and 12b. And has a third form in which the air below the housing 11 is sucked from the suction opening 18. In the installation method of the indoor unit 10 of the air conditioning apparatus 100, the indoor unit 10 is installed so as to be selectable between the first form, the second form and the third form.
　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 conditioning apparatus 100 is disposed in the wall hanging state which is the third mode in which the indoor unit 10 is installed at a high position apart from the floor surface unlike the floor standing state of the first and second modes. Be done. In the case of the third embodiment, the refrigerant detection unit 30 is changed to a state of being attached to the lower side and the outer side of the housing 11 by one leg 12a, and can be arranged close to the floor surface where the refrigerant concentration becomes high. Therefore, even if the indoor unit 10 of the air conditioning apparatus 100 is hung on a wall and installed at a high position away from the floor surface, the refrigerant detection unit 30 can detect the refrigerant that has leaked.
　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 four-way valve, 3 outdoor heat exchanger, 4 expansion valve, 5 indoor heat exchanger, 6 outdoor ventilation 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 fitting, 20 machine room, 21a partition plate, 21b partition plate, Reference Signs List 22 drain pan, 23 control device, 24 heat exchanger chamber, 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)

  1. 　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 in a housing, the indoor unit comprising:
    A refrigerant detection unit removable from the housing;
    The indoor unit of an air conditioner in which the refrigerant detection unit is disposed so as to be selectable between a state of being attached to the inside of the case and a state of being attached to the lower side and the outside of the case.
  2. 　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 disposed inside the housing, and a lower space in which the blower is disposed inside the housing;
    It can be placed freely on the floor or on the wall,
    The refrigerant detection unit may be attached to the lower space of the housing in the floor-standing state, and may be attached to the lower side and the outer side of the housing in the wall-mounted state. The indoor unit of the air conditioner according to claim 1, wherein the indoor unit is disposed selectively.
  3. 　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 hook that supports the wall hanging state.
  4. 　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 is provided with a plurality of removable legs;
    The plurality of legs are attached to the housing when in the floor-standing state, and support the housing from below, and when the wall is in the wall-mounted state, the refrigerant detection unit is located below the housing. The indoor unit of the air conditioning apparatus according to claim 2 or 3, wherein the state of being attached outward is selected.
  5. 　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 case is removable from the case while covering a lower part of the case and a blowout opening that opens in the upper part of the upper space, a suction opening that opens in the lower part of the lower space, and the case And a lower side wall portion,
    In the floor-standing state, the refrigerant detection unit is attached in the lower space of the housing, the plurality of legs are attached to the housing to support the housing from below, and from the suction opening A first mode in which air below the casing 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 sidewall A second form in which the lower part of the casing is sucked and air from the lower part of the casing is removed from the casing;
    In the 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 is sucked from the suction opening. Third form,
    Have
    The indoor unit according to claim 4, wherein the first form, the second form, and the third form are configured to be selectable.
  6. 　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 includes a sensor that detects a refrigerant, a relay board that is disposed adjacent to the upper side of the sensor and transmits detection information from the sensor to the control device of the indoor unit, and has an opening on the surface A sensor cover that covers the sensor, and a relay substrate cover that is larger in plan view than the sensor cover at an upper adjacent portion of the sensor cover and that covers the relay substrate without an opening on the surface; The indoor unit of the air conditioning apparatus according to any one of claims 1 to 5, which has
  7. 　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.
  8. 　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 the lower space of the housing, and a plurality of legs are mounted on the housing to support the housing from below and provided on the lower surface of the housing The first form in which the air below the casing is sucked from the suction opening to be
    When the indoor unit is placed on the floor, the refrigerant detection unit is attached 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 form in which the lower side wall portion is removed from the housing and air in the lower side of the housing is sucked;
    The refrigerant detection unit is attached to the lower side and the outer side of the casing by one of the plurality of legs with the indoor unit in a wall hanging state, and the air below the casing from the suction opening portion The third form in which
    Have
    The installation method of the indoor unit of the air conditioning apparatus by which the said 1st form, the said 2nd form, and the said 3rd form are installed so that selection is possible.
PCT/JP2017/028580 2017-08-07 2017-08-07 Indoor unit of air conditioning apparatus, air conditioning apparatus, and method for installing indoor unit of air conditioning apparatus WO2019030796A1 (en)

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GB1918215.3A GB2577826C (en) 2017-08-07 2017-08-07 Indoor unit of air-conditioning apparatus, air-conditioning apparatus, and method of installing indoor unit of air-conditioning apparatus
JP2019535454A JP6800339B2 (en) 2017-08-07 2017-08-07 How to install the indoor unit of the air conditioner, the indoor unit of the air conditioner and the indoor unit of the air conditioner
PCT/JP2017/028580 WO2019030796A1 (en) 2017-08-07 2017-08-07 Indoor unit of air conditioning apparatus, air conditioning apparatus, and method for installing indoor unit of air conditioning apparatus

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