WO2019030796A1 - Unité intérieure d'appareil de climatisation, appareil de climatisation, et procédé d'installation d'unité intérieure d'appareil de climatisation - Google Patents

Unité intérieure d'appareil de climatisation, appareil de climatisation, et procédé d'installation d'unité intérieure d'appareil de climatisation 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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WIPO (PCT)
Prior art keywords
housing
indoor unit
detection unit
refrigerant detection
attached
Prior art date
Application number
PCT/JP2017/028580
Other languages
English (en)
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 JP2019535454A priority Critical patent/JP6800339B2/ja
Priority to PCT/JP2017/028580 priority patent/WO2019030796A1/fr
Priority to GB1918215.3A priority patent/GB2577826C/en
Publication of WO2019030796A1 publication Critical patent/WO2019030796A1/fr

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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.

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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

La présente invention concerne une unité intérieure d'un appareil de climatisation, l'unité intérieure comprenant, à l'intérieur de son enveloppe, un échangeur de chaleur intérieur et une soufflante, et étant munie d'une partie de détection de fluide frigorigène pouvant être retirée de l'enveloppe. La partie de détection de fluide frigorigène est disposée de manière à pouvoir adopter sélectivement soit un état monté à l'intérieur de l'enveloppe, soit un état monté au niveau du côté externe inférieur de l'enveloppe.
PCT/JP2017/028580 2017-08-07 2017-08-07 Unité intérieure d'appareil de climatisation, appareil de climatisation, et procédé d'installation d'unité intérieure d'appareil de climatisation WO2019030796A1 (fr)

Priority Applications (3)

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JP2019535454A JP6800339B2 (ja) 2017-08-07 2017-08-07 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
PCT/JP2017/028580 WO2019030796A1 (fr) 2017-08-07 2017-08-07 Unité intérieure d'appareil de climatisation, appareil de climatisation, et procédé d'installation d'unité intérieure d'appareil de climatisation
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

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EP3835676A1 (fr) * 2019-12-10 2021-06-16 LG Electronics Inc. Appareil ou dispositif de gestion de l'air
EP3835675A1 (fr) * 2019-12-10 2021-06-16 LG Electronics Inc. Appareil ou dispositif de gestion d'air
US11566796B2 (en) 2019-12-10 2023-01-31 Lg Electronics Inc. Air management apparatus and method thereof
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WO2017110904A1 (fr) * 2015-12-22 2017-06-29 三菱電機株式会社 Climatiseur

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CN110285541A (zh) * 2019-07-01 2019-09-27 珠海格力电器股份有限公司 多联机泄漏位置自动定位方法、装置及设备
CN110285541B (zh) * 2019-07-01 2020-05-22 珠海格力电器股份有限公司 多联机泄漏位置自动定位方法、装置及设备
EP3835676A1 (fr) * 2019-12-10 2021-06-16 LG Electronics Inc. Appareil ou dispositif de gestion de l'air
EP3835675A1 (fr) * 2019-12-10 2021-06-16 LG Electronics Inc. Appareil ou dispositif de gestion d'air
US11566796B2 (en) 2019-12-10 2023-01-31 Lg Electronics Inc. Air management apparatus and method thereof
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WO2023135845A1 (fr) * 2022-01-17 2023-07-20 三菱電機株式会社 Unité intérieure et climatiseur

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GB201918215D0 (en) 2020-01-22
GB2577826A (en) 2020-04-08
GB2577826C (en) 2021-07-21
JP6800339B2 (ja) 2020-12-16
GB2577826B (en) 2021-06-09

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