EP3617602B1 - Inneneinheit für klimaanlage mit einer kältemittel-erkennungsvorrichtung - Google Patents

Inneneinheit für klimaanlage mit einer kältemittel-erkennungsvorrichtung Download PDF

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Publication number
EP3617602B1
EP3617602B1 EP17907606.2A EP17907606A EP3617602B1 EP 3617602 B1 EP3617602 B1 EP 3617602B1 EP 17907606 A EP17907606 A EP 17907606A EP 3617602 B1 EP3617602 B1 EP 3617602B1
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EP
European Patent Office
Prior art keywords
air
refrigerant
air passage
fan
indoor unit
Prior art date
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Active
Application number
EP17907606.2A
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English (en)
French (fr)
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EP3617602A4 (de
EP3617602A1 (de
Inventor
Shinji TOMOIGAWA
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Mitsubishi Electric Corp
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Mitsubishi Electric Corp
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Publication of EP3617602A4 publication Critical patent/EP3617602A4/de
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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
    • 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
    • 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
    • F24F1/00077—Indoor units, e.g. fan coil units receiving heat exchange fluid entering and leaving the unit as a liquid
    • 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
    • F24F11/70—Control systems characterised by their outputs; Constructional details thereof
    • F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
    • F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
    • 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
    • F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
    • 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
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B49/00—Arrangement or mounting of control or safety devices
    • F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
    • 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
    • F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values

Definitions

  • the present invention relates to an air-conditioning apparatus that is provided with an refrigerant detection device.
  • a sensor that detects leakage of refrigerant from a refrigerant circuit is provided in a housing of the air-conditioning apparatus.
  • a heat exchanger is provided at an air passage in a housing, and a fan covered by a fan casing is provided below the heat exchanger.
  • a refrigerant detection unit is provided in the fan casing and at a higher position than an indoor fan.
  • the refrigerant detection unit for example, a semiconductor gas sensor or a hot-wire semiconductor gas sensor is used.
  • Patent Literature 2 discloses a refrigerant detection device with an infrared sensor which is provided inside the casing of an indoor unit in a location where the possibility of a refrigerant leakage is high.
  • Patent Literature 3 a refrigerant detection device is located in the exhaust stream of a heat-exchanger.
  • the indoor unit of the air-conditioning apparatus because of the limited constraints of an internal structure of the indoor unit, it is sometimes impossible to provide the refrigerant detection unit at the air passage in the housing as disclosed in Patent Literature 1, or it is hard to provide the refrigerant detection unit at an optimal position. Furthermore, the indoor unit of the air-conditioning apparatus disclosed in Patent Literature 1 is capable of detecting refrigerant leakage especially when the air-conditioning apparatus is in the stopped state, but it is difficult or impossible for the indoor unit to detect refrigerant leakage when the air-conditioning apparatus is in operation.
  • the present invention has been made to solve the above problems, and an object of the invention is to provide an indoor unit of an air-conditioning apparatus comprising a refrigerant detection device.
  • a refrigerant detection device which is useful for understanding the invention but not part of it, includes a refrigerant-detection air passage having both ends connected to a main air passage extending from a suction port of an indoor unit of an air-conditioning apparatus to an air outlet of the indoor unit; and a refrigerant detection sensor that detects refrigerant in the refrigerant-detection air passage.
  • the refrigerant-detection air passage is configured to flow air from an air-sending port side of the fan through the refrigerant detection air passage to an intake port side of the fan, the fan being provided in the main air passage and configured to send air from the suction port to the air outlet.
  • An indoor unit of an air-conditioning apparatus includes: a housing formed in a shape of a box and including a fan chamber with a suction port and a heat-exchanger chamber with an air outlet; a main air passage extending from the suction port to the air outlet; a fan provided in the fan chamber and configured to send air from the suction port to the air outlet; a heat exchanger provided in the heat-exchanger chamber that transfers heat between the air flowing through the main air passage and refrigerant; and a refrigerant detection device including a refrigerant-detection air passage provided outside the housing between heat-exchanger chamber and fan chamber, and a refrigerant detection sensor that detects refrigerant in the refrigerant-detection air passage and is provided in the refrigerant-detection air passage.
  • the refrigerant detection device can guide air to the outside of the main air passage in the housing of the indoor unit of the air-conditioning apparatus, and to detect refrigerant leakage.
  • the refrigerant detection device can be provided in the indoor unit of the air-conditioning apparatus without imposing a restriction on the configuration of the main air passage.
  • the refrigerant detection device can be applied to the device models of different structures without the load on designing how to design the refrigerant detection device.
  • Fig. 1 is a perspective view of an indoor unit 100 of an air-conditioning apparatus according to embodiment 1 of the present invention.
  • Fig. 2 is an explanatory diagram of air passages in the indoor unit 100 of the air-conditioning apparatus as illustrated in Fig. 1.
  • Figs. 1 and 2 schematically illustrate the indoor unit 100 of the air-conditioning apparatus.
  • the indoor unit 100 of the air-conditioning apparatus includes a housing 1 formed in the shape of a box, and the inside of the housing 1 is partitioned into a fan chamber A and a heat-exchanger chamber B by a fan plate 5.
  • a motor 2 and two fan casings 3 are provided in the fan chamber A.
  • a fan 40 is provided in each of the fan casings 3.
  • An opening port is provided at the housing 1, and the fan chamber A is provided with a suction port 18 for taking in air from the outside of the indoor unit 100 of the air-conditioning apparatus.
  • the suction port 18 is provided in an end surface of the housing 1; however, it can be provided at any location as long as air can be taken from the outside of the housing 1 into the fan chamber A by the fan 40 though the suction port 18.
  • a heat exchanger 4 is provided in the heat-exchanger chamber B.
  • An air outlet 19 is provided in an end surface of the housing 1 that is located at the heat exchanger chamber B. From the air outlet 19, air is blown after subjected to heat exchange in the heat exchanger 4. The location of the air outlet 19 can be arbitrarily changed.
  • the fan casing 3 is attached to the fan plate 5.
  • An air-sending port 42 is provided in the fan plate 5. From the air-sending port 42, air is blown from the fan 40 into the heat-exchanger chamber B.
  • the fan casing 3 is provided with an intake port 41 for taking air flowing in the fan chamber A into the fan casing 3.
  • the fan 40 is provided in the fan casing 3 is driven by a motor 2 to take in air flowing in the fan chamber A from the intake port 41 of the fan casing 3, and to blow out air into the heat-exchanger chamber B through the air-sending port 42.
  • the air blown into the heat-exchanger chamber B exchanges heat, in the heat exchanger 4, with refrigerant flowing through a heat transfer tube 30 in the heat exchanger 4, and is blown out from the air outlet 19. That is, a main air passage 50 is formed in the housing 1 to extend from the suction port 18 to the air outlet 19 via the fan 40 and the heat exchanger 4.
  • a refrigerant detection device 20 is provided to take in air flowing in the main air passage 50 provided in the housing 1, and to detect whether refrigerant is contained in the air or not.
  • the refrigerant detection device 20 may include a pipe 9 connected to the main air passage 50, a refrigerant detection box 6 in which a refrigerant detection sensor 11 is provided, and a pipe 10 connected to the main air passage 50 to return air flowing through the refrigerant detection sensor 11 to the main air passage 50.
  • an inlet port 7 is provided to take in air flowing through the main air passage 50.
  • an air return port 8 is provided to return air from a refrigerant-detection air passage 60 to the main air passage 50.
  • An air passage that branches off from the main air passage 50 in the housing 1 and extends from the inlet port 7 to the air return port 8 to send air to the refrigerant detection sensor 11 and to return air to the main air passage 50 will be referred to as the refrigerant-detection air passage 60.
  • Material of the pipe 9 and the pipe 10 may be resin or metal as long as it has a satisfactory strength and does not affect detection of refrigerant.
  • the pipes 9 and 10 are formed of soft material that can be freely changed in shape; and in the housing 1, attachment of the pipe 9 to the inlet port 7 and attachment of the pipe 10 to the air return port are achieved by the same attachment structure, and at least one of the lengths and shapes of the pipes 9 and 10 in the refrigerant detection device 20 is changed, whereby a refrigerant-detection air passage 60 that branches off from the main air passage 50 and then re-join the main air passage 50 can be made in indoor units of various types of air-conditioning apparatuses.
  • the pressure of air on a downstream side of the fan 40 that is, on a side where the air-sending port 42 is located, is raised higher than the pressure of air on an upstream side of the fan 40, that is, a side where the intake port 41 is located.
  • the inlet port 7 is provided in the heat-exchanger chamber B whose air pressure is high, and the air return port 8 is provided in the fan chamber A whose air pressure is low, and because of the difference between these air pressures, air easily flows into the refrigerant-detection air passage 60.
  • the inlet port 7 is provided at lower part of the housing 1.
  • the refrigerant for use in the air-conditioning apparatus is refrigerant, such as ammonia, which is lighter than air when it is in a gas state
  • the inlet port 7 may be provided at upper part of the housing 1. In embodiment 1, for example, the inlet port 7 is provided at the lower part of the housing 1 as illustrated in Fig. 1 .
  • the inlet port 7 is provided in only one of side surfaces of the housing 1, but inlet ports 7 may be provided at side surfaces of the housing 1 or on upper and lower surfaces of the housing 1, for example, in accordance with the structure of the indoor unit 100 of the air-conditioning apparatus. Also, as in the inlet port 7, the position of the air return port 8 or the numbers of air return ports 8 can be changed as appropriate in accordance with the refrigerant for use in the air-conditioning apparatus or the structure of the indoor unit 100 of the air-conditioning apparatus.
  • the inlet port 7 and the air return port 8 are circular, but may be formed in another shape. Furthermore, the opening areas of the inlet port 7 and the air return port 8 are determined in consideration of, for example, the lengths and strengths of the pipes 9 and 10, and a flow velocity at which the refrigerant detection sensor 11 can easily perform detection.
  • Fig. 3 is an enlarged view of the refrigerant detection box 6 as illustrated in Fig. 1 .
  • the refrigerant detection box 6 is illustrated, with its top and front plates removed.
  • the refrigerant detection box 6 is provided with the refrigerant detection sensor 11 that detects the density of the refrigerant, and a control unit 12 which processes a signal from the refrigerant detection sensor 11.
  • the refrigerant detection sensor 11 may be driven by power supplied from the indoor unit 100 of the air-conditioning apparatus or power supplied from an external power supply at an actual place where the indoor unit 100 of the air-conditioning apparatus is installed.
  • the refrigerant detection sensor 11 is a refrigerant detection sensor which cannot be driven by power supplied from the indoor unit 100 or the external power supply
  • a battery may be incorporated in the refrigerant detection box 6.
  • the refrigerant detection sensor 11 and the control unit 12 are fixed at a bottom surface of the refrigerant detection box 6 in a vertical direction, but the refrigerant detection sensor 11 and the control unit 12 may be fixed at another surface or other surfaces.
  • the refrigerant detection box 6 is fixed at the housing 1 of the indoor unit 100 of the air-conditioning apparatus, but may be freely provided outside the housing 1.
  • the refrigerant detection box 6 can be provided at a ceiling surface in the case where the indoor unit is a ceiling-suspended indoor unit, and can be provided at a floor surface in the case where the indoor unit is a floor-installed indoor unit.
  • the refrigerant detection box 6 can be provided at an optimal positon in consideration of environments of the actual place where the indoor unit 100 of the air-conditioning apparatus is installed and the ease of maintenance of the refrigerant detection box 6.
  • the refrigerant detection device 20 may be fixed at the housing 1 of the indoor unit 100, and the pipes 9 and 10 may be fixed to the inlet port 7 and the air return port 8, respectively, by screws or the like, thereby enabling the refrigerant detection device 20 only to be replaced by a new one.
  • Fig. 4 is an enlarged view of the inlet port 7 and the periphery thereof in the refrigerant detection device 20 as illustrated in Fig. 1 .
  • Fig. 4 illustrates the housing 1 of the indoor unit 100, but omits a top surface and a side surface of the housing 1.
  • a plurality of heat transfer tubes 30 are arranged and end portions of the heat transfer tubes 30 are connected by, for example, U-shaped pipes 31, thereby forming a refrigerant flow passage.
  • a plurality of fins 33 are attached to the plurality of heat transfer tubes 30, and heat is exchanged between air and refrigerant flowing through the heat transfer tubes 30 by causing air to flow between the fins 33.
  • refrigerant may leak from connection portions 32 where the heat transfer tubes 30 and the U-shaped pipes 31 are connected by, for example, brazing.
  • a shielding plate 13 is provided in such a manner as to project in the same direction as the U-shaped pipes 31 project from an end portion of the heat exchanger 4 where the fins 33 are provided, and blocks part of the main air passage 50.
  • the shielding plate 13 is provided in such a manner as to project from an end portion of a surface of the heat exchanger 4 that faces a downstream side of the main air passage 50, and in parallel with the surface.
  • the shielding plate 13 blocks the flow of air passing through a region at the end portion of the heat exchanger 4 where the U-shaped pipes 31 are provided.
  • the heat exchanger 4 is inclined relative to the flow direction of air in the main air passage 50.
  • the shielding plate 13 blocks part of the main air passage 50 in the main air passage 50 on a downstream side of the inlet port 7. Thereby, a flow passage is provided in such a manner as to guide air passing through the end portion of the heat exchanger 4 such that the air is collected at the inlet port 7, and the indoor unit 100 of the air-conditioning apparatus can improve the accuracy of detection of refrigerant leakage.
  • a refrigerant detection device 220 of an indoor unit 200 of an air-conditioning apparatus according to embodiment 2 is obtained by adding a small fan to the refrigerant detection device 20 of the indoor unit 100 of the air-conditioning apparatus according to embodiment 1.
  • Embodiment 2 will be described by referring mainly to the differences between embodiments 1 and 2. Matters not particularly described regarding embodiment 2 are the same as or similar to those in embodiment 1, and functions and components in embodiment 2 which are the same as those in embodiment 1 will be denoted by the same reference signs.
  • Fig. 5 is a perspective view of the refrigerant detection device 220 according to embodiment 2 of the present invention.
  • the refrigerant detection device 20, as well as the refrigerant detection device 20 according to embodiment 1, is attached to the indoor unit 200 of the air-conditioning apparatus.
  • the refrigerant detection device 220 includes a fan box 14 provided with a fan that sends air in the refrigerant-detection air passage 60, in addition to the refrigerant detection box 6 of embodiment 1.
  • the flow rate of air passing through the refrigerant detection box 6 can be adjusted to a flow rate suitable for detection, by adjusting the rotation speed of the fan in the refrigerant-detection air passage 60.
  • the fan box 14 is provided at the pipe 9 between the inlet port 7 and the refrigerant detection box 6, but the fan box 14 may be provided at the pipe 10 between the refrigerant detection box 6 and the air return port 8.
  • the refrigerant-detection air passage 60 includes a fan which sends air from one of end portions of the refrigerant-detection air passage 60 to the other end portion.
  • the refrigerant-detection air passage 60 includes a fan that sends air from one of end portions of the refrigerant-detection air passage 60 to the other end portion.
  • the refrigerant-detection air passage 60 further includes the pipes 9 and 10 and the fan box 14 connected to the pipes 9 and 10, one end portion of each of the pipes 9 and 10 being connected to the main air passage 50.
  • the fan is provided in the fan box 14.
  • the fan of the refrigerant detection device 20 can be easily inspected and replaced by a new one.
  • a refrigerant detection device 320 of an indoor unit 300 of an air-conditioning apparatus according to embodiment 3 is achieved by adding protrusion pipes 15 and 16 to the refrigerant detection device 20 of the indoor unit 100 of the air-conditioning apparatus according to embodiment 1.
  • the protrusion pipes 15 and 16 protrude into the main air passage 50 from the inlet port 7 and the air return port 8, respectively.
  • Embodiment 3 will be described by referring mainly to the differences between embodiments 1 and 3. Matters not particularly described in embodiment 3 are assumed to be the same as or similar to those in embodiment 1, and components which have the same functions and structures as those in embodiment 1 will be denoted by same reference signs.
  • Fig. 6 is a perspective view of the indoor unit 300 of the air-conditioning apparatus according to embodiment 3 of the present invention.
  • the inlet port 7 and the air return port 8 are provided on a side of the main air passage 50 in the housing 1.
  • the protrusion pipes 15 and 16 are further provided to protrude into the main air passage 50 in the indoor unit 300, and the inlet port 7 and the air return port 8 are provided at distal ends of the protrusion pipe 15 and 16, respectively. Because of such a structure, it is possible to change the position at which air in the main air passage 50 is taken in and the position where air having flowed through the refrigerant-detection air passage 60 is returned.
  • short protrusion pipes 15 and 16 are each provided to straightly extend into the main air passage 50 from a connection portion between the main air passage 50 and the refrigerant-detection air passage 60.
  • the protrusion pipe 15 includes the inlet port 7 at its distal end portion, and for example, is located close to an end portion of the heat exchanger 4. Also, the protrusion pipe 15 is formed to easily take in refrigerant leaking from the connection portion 32 between the heat transfer tube 30 and the U-shaped pipe 31 at the end portion of the heat exchanger 4.
  • the shape of the protrusion pipe 15 may be changed as appropriate, and the position of the distal end portion of the protrusion pipe 15 may be changed as appropriate to a position where refrigerant leakage can be easily detected. It is also possible to detect refrigerant leakage at a plurality of positions in the main air passage 50 by branching the distal end portion of the protrusion pipe 15 into two or more, and therefore possible to further improve the accuracy of the detection by the refrigerant detection device 320.
  • the refrigerant-detection air passage 60 includes the protrusion pipes 15 and 16 protruding into the main air passage 50, and the protrusion pipe 15 includes, at the distal end portion thereof, the inlet port 7 for taking in air from the main air passage 50.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Air Conditioning Control Device (AREA)

Claims (8)

  1. Inneneinheit (100, 200, 300) einer Klimaanlage, umfassend:
    ein Gehäuse (1), das in Form eines Kastens ausgebildet ist und eine Lüfterkammer (A) mit einer Ansaugöffnung (18) und eine Wärmetauscherkammer (B) mit einem Luftauslass (19) umfasst, wobei ein Innenraum des Gehäuses (1) durch eine Lüfterplatte (5) in die Lüfterkammer (A) und die Wärmetauscherkammer (B) unterteilt ist;
    einen Lüfter (40), der in einem Lüftergehäuse (3) vorgesehen ist, das in der Lüfterkammer (A) des Gehäuses vorgesehen ist, wobei eine Einlassöffnung (41) in dem Lüftergehäuse (3) vorgesehen ist, und wobei das Lüftergehäuse (3) an der Lüfterplatte (5) befestigt ist, in welcher eine Luftsendeöffnung (42) vorgesehen ist;
    einen Wärmetauscher (4), der in der Wärmetauscherkammer (B) des Gehäuses (1) vorgesehen ist und eingerichtet ist, Wärme zwischen der Luft, die durch einen Hauptluftdurchlass (50) in dem Gehäuse (1) strömt, der sich von der Ansaugöffnung (18) zu der Luftauslassöffnung (19) erstreckt, und einem Kältemittel zu übertragen; und
    wobei die Kältemittel-Erfassungseinrichtung (20, 220, 320) aufweist:
    einen außerhalb des Gehäuses (1) vorgesehenen Kältemittel-Erfassungs-Luftdurchlass (60), der eine in der Wärmetauscherkammer (B) vorgesehene Einlassöffnung (7) und eine in der Lüfterkammer (A) vorgesehene Rückführöffnung (8) umfasst; und
    einen Kältemittel-Erfassungssensor (11), der eingerichtet ist, Kältemittel in dem Kältemittel-Erfassungs-Luftdurchlass (60) zu erfassen,
    wobei der Kältemittel-Erfassungs-Luftdurchlass (60) eingerichtet ist, Luft von der Luftsende-Öffnungsseite (42) des Lüfters (40) durch den Kältemittel-Erfassungs-Luftdurchlass (60) zur Ansaugöffnungsseite (41) des Lüfters (40), der in dem Lüftergehäuse (3) vorgesehen ist, strömen zu lassen, wobei der Lüfter (40) in dem Hauptluftdurchlass (50) vorgesehen ist und eingerichtet ist, Luft von der Ansaugöffnung (18) zu dem Luftauslass (19) zu senden.
  2. Inneneinheit (100, 200, 300) der Klimaanlage nach Anspruch 1,
    wobei eine Vielzahl der Einlassöffnungen (7) in dem Hauptluftdurchlass (50) vorgesehen sind.
  3. Inneneinheit (100, 200, 300) der Klimaanlage nach Anspruch 1 oder 2,
    wobei der Kältemittel-Erfassungs-Luftdurchlass (60) veranlasst, dass die Wärmetauscherkammer (B) und die Lüfterkammer (A) miteinander kommunizieren.
  4. Inneneinheit (100, 200, 300) der Klimaanlage nach Anspruch 1 bis 3,
    wobei der Wärmetauscher (4) mit einer Abschirmplatte (13) an einem Endabschnitt des Wärmetauschers (4) versehen ist, wobei die Abschirmplatte (13) eingerichtet ist, einen Teil des Hauptluftdurchlasses (50) zu blockieren, und
    wobei die Abschirmplatte (13) die Luft, welche den Endabschnitt des Wärmetauschers (4) passiert, zu einer Verbindungsöffnung zwischen dem Hauptluftdurchlass (50) und dem Kältemittel-Erfassungs-Luftdurchlass (60) führt.
  5. Inneneinheit (100, 200, 300) der Klimaanlage nach einem der Ansprüche 1 bis 4, wobei der Kältemittel-Erfassungs-Luftdurchlass (60) aufweist:
    eine Überstandleitung (16), welche in den Hauptluftdurchlass (50) hineinragt, und
    wobei die Überstandleitung (16) an einem distalen Endabschnitt eine Einlassöffnung (7) aufweist, die eingerichtet ist, die Luft aus dem Hauptluftdurchlass (50) aufzunehmen.
  6. Inneneinheit (100, 200, 300) der Klimaanlage nach einem der Ansprüche 1 bis 5, wobei der Kältemittel-Erfassungs-Luftdurchlass (60) aufweist:
    eine Leitung (10), deren eines Ende mit dem Hauptluftdurchlass (50) verbunden ist, und
    einen Kältemittel-Erfassungskasten (6), welcher mit der Leitung (10) verbunden ist, und
    wobei der Kältemittel-Erfassungssensor (11) in dem Kältemittel-Erfassungskasten (6) vorgesehen ist.
  7. Inneneinheit (100, 200, 300) der Klimaanlage nach einem der Ansprüche 1 bis 6, wobei
    der Kältemittel-Erfassungs-Luftdurchlass (60) einen Lüfter umfasst, der eingerichtet ist, Luft von einem von Enden des Kältemittel-Erfassungs-Luftdurchlasses (60) zu dem anderen zu senden.
  8. Inneneinheit (100, 200, 300) der Klimaanlage nach Anspruch 7,
    wobei der Kältemittel-Erfassungs-Luftdurchlass (60) ferner aufweist:
    eine Leitung (10), deren eines Ende mit dem Hauptluftdurchlass (50) verbunden ist, und
    einen Lüfterkasten (14), der mit der Leitung (10) verbunden ist, und
    wobei der Lüfter in dem Lüfterkasten (14) vorgesehen ist.
EP17907606.2A 2017-04-24 2017-04-24 Inneneinheit für klimaanlage mit einer kältemittel-erkennungsvorrichtung Active EP3617602B1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2017/016195 WO2018198165A1 (ja) 2017-04-24 2017-04-24 冷媒検知装置及び空気調和装置の室内機

Publications (3)

Publication Number Publication Date
EP3617602A1 EP3617602A1 (de) 2020-03-04
EP3617602A4 EP3617602A4 (de) 2020-05-20
EP3617602B1 true EP3617602B1 (de) 2024-04-10

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WO2018198165A1 (ja) 2018-11-01
JP6727421B2 (ja) 2020-07-22
EP3617602A1 (de) 2020-03-04
JPWO2018198165A1 (ja) 2019-12-12
US20200056799A1 (en) 2020-02-20

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