WO2017075658A1 - Système de conditionnement d'air - Google Patents

Système de conditionnement d'air Download PDF

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Publication number
WO2017075658A1
WO2017075658A1 PCT/AU2016/051044 AU2016051044W WO2017075658A1 WO 2017075658 A1 WO2017075658 A1 WO 2017075658A1 AU 2016051044 W AU2016051044 W AU 2016051044W WO 2017075658 A1 WO2017075658 A1 WO 2017075658A1
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WO
WIPO (PCT)
Prior art keywords
indoor
air
supply
vent
return
Prior art date
Application number
PCT/AU2016/051044
Other languages
English (en)
Inventor
Regan Haughey HAUGHEY
Original Assignee
The Air-Conditioning Dealer Pty Ltd
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
Priority claimed from AU2015904506A external-priority patent/AU2015904506A0/en
Application filed by The Air-Conditioning Dealer Pty Ltd filed Critical The Air-Conditioning Dealer Pty Ltd
Publication of WO2017075658A1 publication Critical patent/WO2017075658A1/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
    • F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
    • F24F1/06—Separate outdoor units, e.g. outdoor unit to be linked to a separate room comprising a compressor and a heat exchanger
    • 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
    • F24F13/02—Ducting arrangements
    • F24F13/06—Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser
    • 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
    • F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
    • F24F3/044—Systems in which all treatment is given in the central station, i.e. all-air systems

Definitions

  • the present invention relates to air-conditioning systems, in particular to an improved air-conditioning system suitable for but not limited to residential application.
  • the inventor is a refrigeration mechanic who has
  • Standard split system air-conditioners consist of an external unit connected via refrigerant pipes to an indoor unit and are an improvement on single unit air-conditioners installed in a window or wall which were popular in earlier times. Primarily, the improvement is in noise level experienced by building occupants as the compressor is located outside.
  • the indoor system of a split system is bulky, and the installation of a split system requires expensive professional installation and charging of the refrigeration circuit which extends from the external unit to the internal unit and often causes post- installation failures.
  • Single unit air-conditioners installed in a window or wall and portable in-room air-conditioners comprise a packaged housing with the refrigeration elements inside the housing preinstalled and pre-charged, but have significant noise problems due to the presence of the housing containing the compressor within the indoor conditioned space which causes high noise levels for the occupants of the indoor conditioned space as discussed above.
  • an air-conditioning system for air- conditioning an indoor conditioned space, the system comprising: an external unit located externally of the indoor conditioned space, the external unit being disposed within a housing and containing an inlet port and a supply port extending through the housing, and a refrigeration circuit within the housing adapted to exchange heat between an external environment and a
  • an indoor supply vent adapted to direct the conditioned air flow into the conditioned space
  • an indoor return vent adapted to vent air out of the indoor conditioned space
  • the indoor supply vent and indoor return vent are disposed in a single indoor unit housing.
  • the indoor unit housing is adapted to be installed surface mounted on a wall of the indoor conditioned space. In another embodiment, the indoor unit housing is adapted to be installed flush mounted in a ceiling of the indoor conditioned space. In another embodiment, the indoor unit housing is adapted to be installed flush mounted on a wall of the indoor conditioned space.
  • the indoor unit housing is adapted to be installed in a window opening of the indoor conditioned space .
  • the system further comprises a supply air boost fan installed behind the indoor supply vent.
  • the system further comprises a return air boost fan installed behind the indoor return vent.
  • control sensors are operably connected with the external unit via low-voltage electrical wiring routed through the return duct or the supply duct.
  • the electrical power to power the external unit is provided through a power cable routed through the return duct or the supply duct and plugged into a power point located in the indoor conditioned space.
  • the external unit is a reverse cycle air-conditioner capable of cooling and warming modes and the air-conditioning system further comprises an arrangement of interconnected air dampers each having electrically controllable closed and open positions, the arrangement being configured with respect to the supply duct and return duct to allow swapping of functions of the supply and return ducts and corresponding indoor supply and return vents .
  • the system further comprises an outside air mixing unit adapted to introduce a controllable portion of outside air into the conditioned air flow.
  • the outside air mixing unit may be adapted to cause the supply port to supply 100% outside air in a ventilation-only mode of the air-conditioning system.
  • the indoor supply vent and indoor return vent are not disposed in a single housing and are
  • the external unit located externally of the indoor conditioned space is located outside a wall of the indoor conditioned space, beneath a floor of the indoor
  • the external unit may be provided by a packaged
  • refrigerative air conditioner and be disposed within a
  • the one or more control sensors may be any one or more control sensors.
  • a wireless signal repeater unit configured to receive wireless signals from the indoor conditioned space and transmit them to a wireless receiver of the packaged refrigerative air conditioner .
  • the external unit located externally of the indoor conditioned space is located inside a sound attenuating enclosure within walls, floor and ceiling bordering the indoor conditioned space, the sound attenuating enclosure providing conditioned air through the indoor supply vent and receiving air from the indoor conditioned space through the indoor return vent, the sound attenuating enclosure comprising one or more apertures in the floor, wall or ceiling to enable the heat exchange with the external environment.
  • the indoor supply vent and the indoor return vent may be located on
  • the system comprises more than one of the external units located next to each other and each external unit containing a corresponding set of the return port, the supply port and the refrigeration circuit, the external units being connected together via the return ports and supply ports to together condition the conditioned air.
  • the external units may be connected together in a cascaded serial or a parallel arrangement .
  • an air-conditioning system comprising:
  • conditioned air heat exchanger and an external air heat exchanger connected in a refrigeration circuit
  • the conditioned air heat exchanger being configured to exchange heat between the refrigeration circuit and a conditioned air flow flowing through the conditioned air heat exchanger
  • the external air exchanger being configured to exchange heat between the refrigeration circuit and an external environment
  • an indoor supply vent adapted to direct the conditioned air flow into an indoor conditioned space
  • a supply duct connectable between a supply port of the conditioned air heat exchanger and the indoor supply vent and adapted to duct the conditioned air from the supply port to the indoor supply vent;
  • an indoor return vent adapted to vent air out of the indoor conditioned space
  • a return duct connectable between the inlet port of the conditioned air heat exchanger and the indoor return vent and adapted to duct air from the indoor return vent to the inlet port;
  • control sensors operably connected with the control system of the air-conditioning system and locatable so as to sense control signals emanating from the indoor
  • indoor supply vent and the indoor return vent are disposed in a single indoor unit housing.
  • an air-conditioning system comprising:
  • conditioned air heat exchanger and an external air heat exchanger connected in a refrigeration circuit
  • the conditioned air heat exchanger being configured to exchange heat between the refrigeration circuit and a conditioned air flow flowing through the conditioned air heat exchanger
  • the external air exchanger being configured to exchange heat between the refrigeration circuit and an external environment
  • an indoor supply vent adapted to direct the conditioned air flow into an indoor conditioned space
  • a supply duct connectable between a supply port of the conditioned air heat exchanger and the indoor supply vent and adapted to duct the conditioned air from the supply port to the indoor supply vent;
  • an indoor return vent adapted to vent air out of the indoor conditioned space
  • a return duct connectable between the inlet port of the conditioned air heat exchanger and the indoor return vent and adapted to duct air from the indoor return vent to the inlet port;
  • control sensors operably connected with the control system of the air-conditioning system and locatable so as to sense control signals emanating from the indoor
  • the air-conditioning system is a reverse cycle air- conditioning system capable of cooling and warming modes and further comprises an arrangement of interconnected air dampers each having electrically controllable closed and open positions, the arrangement being configured with respect to the supply duct and return duct to allow swapping of functions of the supply and return ducts and corresponding indoor supply and return vents .
  • the phrase "located externally of the indoor conditioned space" extends to any location which is separated from the indoor conditioned space behind a wall, beneath a floor or above a ceiling bounding the indoor
  • Figure 1 is a functional diagram of an external unit in an air-conditioning system according to a first embodiment of the invention
  • Figure 2A is a functional diagram of the external unit of Figure 1 connected to return supply ducts and an indoor unit according to the first embodiment of the invention
  • Figure 2B is a front view of an indoor unit housing according to the first embodiment of the invention shown in Figure 1 and Figure 2A;
  • Figure 3 is a functional diagram of a 2nd embodiment of the invention with indoor supply and return vents located in a ceiling;
  • Figure 4 is a functional diagram of a 3rd embodiment of the invention with an indoor unit installed flush mounted in a wall ;
  • Figure 5 is a front view diagram of an indoor unit housing according to a 4th embodiment of the invention.
  • Figure 6 is a view of an indoor unit housing according to a 5th embodiment of the invention installed in a window space;
  • FIG. 7 is a diagram of the 3rd embodiment of the invention including wiring details
  • Figure 8A and 8B are functional diagrams of a 6th
  • embodiment of the invention adapted to reverse supply and return air flow in a system capable of both heating and cooling;
  • Figure 9A and 9B are functional diagrams of a 7th
  • Figure 10 is a functional diagram of an 8 th embodiment of the invention comprising an external unit provided by a portable air conditioner disposed within a weatherproof casing.
  • Figures 11A and 11B show a functional diagram of a 9 th embodiment comprising a packaged air conditioner as the external unit disposed within a soundproof enclosure within the walls, floor and ceiling of the indoor space.
  • Figure 12 is a functional diagram of multiple external units of a 10 th embodiment comprising a variant utilising cascaded housings ;
  • FIG. 1 a functional diagram of an external unit in an air-conditioning system according to a first embodiment of the invention is shown.
  • the external unit
  • External unit has an inlet port 1 and an outlet port 2 communicating through the housing 3 through which a conditioned air flow passes and is delivered through the outlet port 2 to an indoor conditioned space in the building by a supply path to be described below.
  • Compressor 4 is located within housing 3 and electrically powered and compresses
  • refrigerant in a refrigerant circuit defined by refrigerant pipes 13, 14, 15, 16, 17, 18 connecting outside air heat
  • refrigerant metering device 11 such as a thermal expansion valve, conditioned air heat exchanger 9 and refrigerant reversing valve 12.
  • the external unit of this embodiment is a reverse cycle air-conditioner having heating and cooling modes.
  • the refrigeration circuit within housing 3, the refrigeration circuit can be sealed and commissioned in a factory and there is no need for an air-conditioning mechanic to install the system on site.
  • the refrigeration capacity of the external unit is selected to be appropriate for the size of the indoor
  • refrigerant reversing valve 12 connects refrigerant pipe 14 to 16 and 13 to 15, with compressor compressing and heating refrigerant in pipe 16, the heat of the refrigerant being transferred to outside air entering through outside air heat exchanger vent 19 through outside air heat exchanger 6 and exiting through outside air heat exchanger fan discharge 10 under the impetus of outside air heat exchanger fan 7.
  • Refrigerant metering device 7 causes expansion and rapid cooling of the refrigerant which passes through conditioned air heat exchanger 9 and cools air entering through the inlet port passing over conditioned air heat exchanger 9 and out through supply port 2, under the impetus of conditioned air heat exchanger high static pressure fan 8 suitably chosen based on the duct flow resistance characteristics.
  • refrigerant reversing valve 12 connects refrigerant pipe 14 to 13 and 16 to 15, with compressor compressing and heating refrigerant in pipe 13, the heat of the refrigerant being transferred to the conditioned air flow entering through inlet 4 passing over conditioned air heat exchanger 9 and exiting supply port 2 under the impetus of conditioned air heat exchanger high static fan 8.
  • Refrigerant metering device 11 causes expansion and rapid cooling of the refrigerant which then passes through outside air heat exchanger 6 which is warmed by outside air passing through outside air heat exchanger vent 19, over outside air heat exchanger 6 and out through outside air heat exchanger fan discharge 10 under the impetus of outside air heat exchanger fan 7.
  • the external unit also incorporates electronic control system connected to sensors and control switches operable from an indoor conditioned space of the building (not shown) .
  • external unit 30 is shown in Figure 2A installed outside an exterior wall
  • indoor unit housing 21 houses both indoor supply vent 28 and indoor return vent 31, and is surface mounted on an indoor wall 24.
  • Figure 2B shows a front view of indoor wall face 29 with indoor unit housing 21 and indoor return vent 31 and indoor supply vent 28.
  • Supply duct 27 and return duct 26 are constructed of heat insulated flexible material reinforced with spiral ridges, comprising an insulated inner core flexible duct with a weather- resisant UV-rated outer jacket, enclosed within folded sheet metal conduit covers in parts installed outside.
  • Supply duct 27 and return duct 26 may be run together on the outside wall 25 or separately. Suitable cross-sectional areas of the ducts are determined on the basis of required airflow, and are
  • a cross- sectional area of supply duct 27 and return duct 26 is each at least 20 square centimetres, preferably at least 80 square centimetres to minimise excessive air resistance, although these amounts will vary depending on the installation, run length and fan characteristics.
  • a return air boost fan 35 and supply air boost fan 33 located within indoor unit housing to boost airflow, although these may not be necessary as discussed above and in many embodiments, conditioned air heat exchanger high static pressure fan 8 within external unit 30 may be sufficient to maintain necessary or desirable airflow, which would have the advantage of considerably further reduced noise for building occupants .
  • Conditioned air louvre 23 is provided to direct the conditioned air emanating from indoor supply vent 28.
  • distribution vanes in this and other embodiments may be disposed behind indoor supply vent 28 so as to spread the airflow entering from the supply duct 27 across the width of indoor supply vent 28.
  • Conditioned air louvre 23 may be
  • Remote control sensor 34 is positioned within indoor unit housing 21 and adapted to sense control signals emanating from a hand-held remote control unit operated by a user within the indoor conditioned space as is known in the art.
  • the electrical wiring connections and other sensors will be described below in relation to Figure 7.
  • External unit 30 is as described in the first embodiment located next to an exterior wall 18 connected to supply duct 56 and return duct 55.
  • supply duct 56 and return duct 55 extend up the outside of exterior wall 18 and pass through eaves 14 entering into a ceiling space 41 above inside ceiling 42 of the indoor conditioned space.
  • Indoor unit housing 43 houses indoor return vent 44 and supply air vent 52
  • Indoor housing unit 43 also houses remote control sensors 47 also as described above.
  • Supply air boost fan 50 and return air boost fan 45 may also be provided to boost airflow but may not be necessary depending on the installation.
  • FIG. 4 a 3rd embodiment of the invention is shown which is a variation of the first embodiment with an indoor unit housing 75 adapted to be installed flush mounted in a wall of the indoor conditioned space between inside wall 64 an exterior wall 65, useful in buildings containing a sufficient wall cavity.
  • Other features are as described in relation to the first embodiment.
  • FIG. 5 a 4th embodiment of the invention is shown illustrating alternative indoor unit housing 80 with indoor supply vent 82 vertically oriented and disposed in 2 parts on either side of indoor return vent 81. Many other vent shapes and geometries are also possible.
  • FIG. 6 a 5th embodiment of the invention is shown illustrating an alternative indoor unit housing 90 installed inside a window frame 95 of an inside wall 91. Indoor unit housing 90 partly occupies the window space, the rest of which being occupied by window glass 92. Such an
  • Spacer panels may be provided to enable a standard sized indoor unit housing to be
  • Indoor unit housing 90 comprises indoor supply vent 93 in 2 parts and indoor return vent 94, venting from and into corresponding supply and return ducts (not shown) which may be fixed to an outside wall of the building as described above or without fixation where the external unit may be located directly below window 95.
  • the electrical power to power the external unit 30 may be provided by a purpose
  • thermostatic control of indoor temperature
  • embodiment of the invention is shown incorporating an ability to allow swapping of functions of the supply and return ducts, particularly valuable in situations where the supply and return vents are in different locations in the indoor conditioned space and where the external unit is capable of both the heating and cooling mode.
  • Figure 8A shows the system with an arrangement of electrically controlled interconnected air dampers 203, 204, 208, 209 connected to duct work 202, 207, 206, 213 which is shown as narrow lines for functional clarity.
  • Air dampers 203 and 208 are closed and aired dampers 204 and 209 are open, appropriate for a mode where indoor vent 205 is the indoor supply vent and indoor vent 201 is the indoor return vent, as shown by the airflow arrows. If vent 205 disposed in the room at a high level and vent 201 is disposed in the room at a low level, this may be an appropriate arrangement for a cooling mode of the system
  • Figure 8B shows the same system with air dampers 204 and 209 closed and air dampers 203 and 208 open, appropriate for a mode where indoor vent 201 is the indoor supply vent and indoor vent 205 is the indoor return vent, as shown by the airflow arrows. If vent 205 is disposed in the room at a higher level and vent 201 is disposed in the room at a low level, this may be an appropriate arrangement for a heating mode of the system.
  • an outside air mixing system which may be located in a separate casing from external unit 215, comprising outside air grille 218 covering an input of electrically controlled air damper 217 with output joining return duct 213 at a duct
  • Electrically controlled air dampers 217 and 219 may be operated to adjust a proportion of outside air introduced to the conditioned air flow through outside air grille 218. As shown in Figure 9A, in a configuration with air damper 219 closed and air damper 217 open, all of the air supplied down supply duct 7 will be sourced from outside. Filter 214 is positioned to filter out dust from the outside air. This full ventilation mode may be useful particularly on a cool night after a hot day when
  • an 8 th embodiment of the invention is shown in functional form comprising an external unit 314, which may be provided by a portable refrigerative air conditioner, disposed within a weatherproof casing 311.
  • Portable air conditioners of the prior art are well known and provide a refrigeration circuit a single portable unit in a housing typically provided with wheels, with inlet and outlet vents for conditioning air and an external air outlet for attaching to a window via flexible ducting to allow the "condenser air" passing through the external air heat exchanger within the unit be evacuated outside.
  • a portable air conditioner normally intended for use indoors can be repurposed in an embodiment of the first aspect of the invention. More generally, any packaged air- conditioner unit in a single housing intended for general or indoor use can be repurposed in this way.
  • Figure 10 shows outside wall 312 and ceiling 301 defining indoor conditioned space 320 and external environment 321.
  • ceiling 301 is an indoor supply vent 302 connected by a supply path in the form of supply duct 307 connected to supply port 330 of packaged air-conditioning unit 306 housing.
  • supply port 330 may comprise louvres appropriate to indoor use which may or may not be removed in the repurposed application.
  • outside wall 312 is a return air vent 303 connected by a return path in the form of return duct 308 connected to return port 331 of packaged air-conditioning unit 306 housing.
  • Encasing packaged air-conditioning unit 306 against outside wall 312 is a
  • weatherproof casing 311 which may be constructed from sheet metal. Weatherproof casing 311 has an external environment air intake vent 309 which allows outside air to enter inside
  • weatherproof casing 311 and circulate to condenser air intake 14 of packaged air-conditioning unit 306, exchange heat with the external environment heat exchanger within the packaged air- conditioning unit 306, and exit through external environment discharge exhaust tube 310.
  • Packaged air-conditioning unit 306 also comprises a wireless receiver unit 325 (typically infrared) normally for use indoors and is adapted in the invention by the provision of a wireless repeater unit installed in outside wall 12 with an indoor wireless receiver 322 connected by electrical connection 323 through outside wall 312 two and a wireless transmitter 324 configured to transmit to wireless receiver unit 325 connected to the packaged air-conditioning unit. In this way, a remote control unit supplied with the packaged air-conditioning unit may be operated indoors .
  • a wireless receiver unit 325 typically infrared
  • FIG. 11A and 11B plan and front views respectively are shown of an installation according to a 9th embodiment using a portable packaged air-conditioner 409 located within a sound attenuating enclosure 402 comprising sound attenuating walls 402, 403 in a corner of the indoor space defined in part by side wall 404, external wall 401, ceiling 421 and floor 422.
  • Sound attenuating walls 402, 403 may be openable as doors to provide access and may be constructed using known sound attenuating strategies having regard to the sound
  • Sound attenuating enclosure 402 is effectively external to the indoor conditioned space and processes conditioned air through air intake indoor return vent 408 and indoor supply vent 413.
  • duct noise attenuators such as are used in the ducted air-conditioning industry may also be employed behind the indoor return vent 408 and/or the indoor supply vent 413.
  • Beneath sound attenuating enclosure 402 is a cupboard 420 or shelving or other furniture providing support for the air conditioner in an efficient elevated location, an unobtrusive streamlined appearance, and useful storage.
  • a wireless repeater in the form of wireless receiver 404 operably connected to wireless transmitter 405 are provided in one of the sound attenuating walls 402, the wireless transmitter 405 being positioned to communicate wirelessly with wireless receiver 406 connected to portable air conditioner unit 409 as described above.
  • External air inlet aperture 414 is cut into external wall 401 to provide an inlet for external air to supply to condenser air intake 432 to pass through the external air heat exchanger within the portable air conditioning unit 409 and exhaust through external environment discharge exhaust tube 411 through exhaust aperture 415 cut in external wall 401.
  • Inlet port 431 receives air returning from the indoor conditioned space through indoor return vent 408 and supply port 434
  • ducting 410 is also shown directing air from external air inlet aperture 414 to condenser air intake 432, and ducting 407 from the indoor return vent 408 to inlet port 431. This is appropriate for maximum efficiency, to
  • a single hose type portable air conditioner may nonetheless be adapted to the arrangement of Figure 11A as long as the single hose type portable air conditioner has a separate air inlet 432 of the external heat exchanger to the inlet 431 of the indoor or conditioned air heat exchanger, one of which may be connected to ducting .
  • duct 407 or 410 may be provided but both are not strictly necessary to fully separate the external air from the indoor air and provide maximum
  • the return air vent 408 and supply air vent 413 are located in the surfaces 402, 403 of the sound attenuating enclosure.
  • these vents may be provided in other parts of the room through ducting extending through the roof cavity or around walls.
  • providing a large separation between the return air vent 408 and supply air vent 413 in this manner will be particularly beneficial to provide appropriate air mixing.
  • the exhaust aperture 415 and the external air inlet aperture 414 if present may alternatively be located in the ceiling and then vent into the roof space or through a chimney through the roof to the outside.
  • a sound attenuating enclosure may be provided in the centre of the room if convenient, using the roof space for the one or more apertures as described above. Further still, where the sound attenuating enclosure is installed on a wall shared between two adjacent rooms, both rooms can be conditioned using branched ducts and zone controlling using controlled dampers as is known in the art. Further also, mixing of outside air to provide ventilation into the indoor
  • conditioned space may be incorporated by allowing for a fresh air intake aperture and controlled mixing dampers as described above with reference to figures 8 and 9.
  • a filter can be installed behind the indoor return vent 408 accessible either from the outside or from within the enclosure, making it easy for the occupant to maintain the unit free of dust without having to change filters within the portable air conditioner unit 409 itself.
  • the return air vent 408 can also advantageously be positioned closer to the floor in the area occupied by the cupboard 420 and ducted up into the sound attenuating enclosure, enabling easier maintenance and change of the filter and also potentially further reducing noise and improving air mixing.
  • FIG. 12 is a functional diagram of multiple external units 514, 515, 516 of a 10 th embodiment cascaded together and each housing a refrigerating circuit and each contributing to the conditioning of the air.
  • External units 514, 515, 516 comprise inlet ports 506, 509, 512 respectively and supply ports 507, 510, 513 respectively.
  • Supply port 507 is connected to neighbouring inlet port 509 by duct 508, and a supply port 510 is connected to inlet port 512 by duct 511.
  • the external units are together housed within a weatherproof enclosure 500 with external
  • the external units may be portable air conditioners of the type discussed above, or may be purpose constructed air-conditioning units.
  • the use of multiple units allows construction of air-conditioning systems of many different desired capacities without the need to manufacture an entire range of sizes of external unit to suit each desired capacity, lowering unit manufacturing costs.
  • control of the connected units presents various control options on how to share the heating or cooling load along the cascade, which may be
  • control options may include control options which maximise efficiency or control options which maximise total cooling power.
  • Embodiments of the first broad aspect of the invention provide considerable advantages compared with air conditioning systems of the prior art.
  • locating both heat exchangers in the housing in the external unit allows
  • the second broad aspect of the invention concerns the integral supply and return vent housing which is particularly applicable to the first broad aspect, but which is also more broadly applicable to conventional centralised ducted systems, providing air circulation (supply and return) for each room in the house, enabling effective isolation of each room in the ventilation circuit.
  • the third broad aspect of the invention concerns the interconnected air dampers allowing swapping of the supply and return vent functions, which is applicable to the first broad aspect, but which is also more broadly applicable to
  • the first broad aspect of the invention extends to embodiments where the indoor return vent is located in a different part of the room from the indoor supply vent, and indeed this flexibility is one of the advantages of the
  • the conditioned air heat exchanger and the external air heat exchanger of the second and third aspects of the invention may be disposed together in an integral external unit of the first broad aspect of the invention, but may also be disposed separately in different housings connected together on- site by refrigeration pipes as is used for example in
  • return path and "supply path” for the conditioned air extends to any materials defining a path which serves to direct the air and does not necessarily require the presence of a specific duct.

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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)

Abstract

L'invention concerne un système de conditionnement d'air destiné au conditionnement de l'air d'un espace intérieur conditionné. Selon un premier aspect, le système comprend : une unité extérieure (30) située à l'extérieur de l'espace intérieur conditionné, l'unité extérieure (30) étant disposée à l'intérieur d'un logement (3) et comportant un orifice d'entrée (1) et un orifice d'alimentation (2) s'étendant à travers le logement (3), et un circuit de réfrigération (13, 14, 15, 16, 17, 18) à l'intérieur du logement (3) conçu pour échanger de la chaleur entre un environnement externe et un écoulement d'air conditionné entrant dans le logement à travers l'orifice d'entrée (1) et sortant du logement à travers l'orifice d'alimentation (2) ; un évent d'alimentation intérieur (28) conçu pour diriger l'écoulement d'air conditionné vers l'espace intérieur conditionné ; un circuit d'alimentation (27) entre l'orifice d'alimentation (2) du logement (3) et l'évent d'alimentation intérieur (28) et conçu pour conduire l'air conditionné vers l'évent d'alimentation intérieur (28) ; un évent de retour intérieur (31) conçu pour évacuer l'air de l'espace intérieur conditionné ; un circuit de retour (26) entre l'orifice d'entrée (1) du logement et l'évent de retour intérieur (31) et conçu pour conduire l'air de l'évent de retour intérieur (31) à l'orifice d'entrée (1) du logement (3) ; et un ou plusieurs capteurs de commande (34) reliés fonctionnellement à l'unité extérieure et pouvant être situés de manière à détecter des signaux de commande en provenance de l'espace intérieur conditionné. Selon un second aspect, un agencement est muni d'un évent d'alimentation intérieur (28) et d'un évent de retour intérieur (31) disposés dans un seul logement (21) de l'unité intérieure. Selon un troisième aspect, un ensemble de registres d'air (203, 204, 208, 209) reliés entre eux permet un échange de fonctions des conduits d'alimentation et de retour.
PCT/AU2016/051044 2015-11-03 2016-11-03 Système de conditionnement d'air WO2017075658A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
AU2015904506 2015-11-03
AU2015904506A AU2015904506A0 (en) 2015-11-03 Air-conditioning system
AU2015904673 2015-11-12
AU2015904673A AU2015904673A0 (en) 2015-11-12 Air-conditioning system

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WO2017075658A1 true WO2017075658A1 (fr) 2017-05-11

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2019114944A1 (fr) * 2017-12-13 2019-06-20 Electrolux Appliances Aktiebolag Climatiseur de fenêtre
US11435110B2 (en) 2016-05-27 2022-09-06 Electrolux Appliances Aktiebolag Air conditioner with window connection
US11519615B2 (en) 2017-12-13 2022-12-06 Electrolux Appliances Aktiebolag Outdoor unit of an air conditioner
US11566815B2 (en) 2017-12-13 2023-01-31 Electrolux Appliances Aktiebolag Installation device for split air-conditioner
WO2023053712A1 (fr) * 2021-09-30 2023-04-06 ダイキン工業株式会社 Dispositif de ventilation et système de climatisation
JP2023051676A (ja) * 2021-09-30 2023-04-11 ダイキン工業株式会社 換気装置及び空気調和システム
US11879647B2 (en) 2021-12-22 2024-01-23 Electrolux Appliances Aktiebolag Portable air conditioning unit window installation system

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US3208236A (en) * 1964-01-31 1965-09-28 Frigerio Alvaro Air conditioner
US4266599A (en) * 1978-11-17 1981-05-12 The Trane Company Method and apparatus for controlling comfort conditions including setback
JPS60105844A (ja) * 1983-11-12 1985-06-11 Takenaka Komuten Co Ltd ヒ−トポンプ空気調和装置
CA2199618A1 (fr) * 1994-09-14 1996-03-21 Trevor James Munday Chambre de stockage sous atmosphere controlee
US6216484B1 (en) * 1997-06-05 2001-04-17 Meyong Hyek Yun Air flow switching type air conditioner for both cooling and heating
JP2002310451A (ja) * 2001-04-06 2002-10-23 Shimizu Corp 空調システム

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Publication number Priority date Publication date Assignee Title
US3208236A (en) * 1964-01-31 1965-09-28 Frigerio Alvaro Air conditioner
US4266599A (en) * 1978-11-17 1981-05-12 The Trane Company Method and apparatus for controlling comfort conditions including setback
JPS60105844A (ja) * 1983-11-12 1985-06-11 Takenaka Komuten Co Ltd ヒ−トポンプ空気調和装置
CA2199618A1 (fr) * 1994-09-14 1996-03-21 Trevor James Munday Chambre de stockage sous atmosphere controlee
US6216484B1 (en) * 1997-06-05 2001-04-17 Meyong Hyek Yun Air flow switching type air conditioner for both cooling and heating
JP2002310451A (ja) * 2001-04-06 2002-10-23 Shimizu Corp 空調システム

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11435110B2 (en) 2016-05-27 2022-09-06 Electrolux Appliances Aktiebolag Air conditioner with window connection
WO2019114944A1 (fr) * 2017-12-13 2019-06-20 Electrolux Appliances Aktiebolag Climatiseur de fenêtre
US11519615B2 (en) 2017-12-13 2022-12-06 Electrolux Appliances Aktiebolag Outdoor unit of an air conditioner
US11566815B2 (en) 2017-12-13 2023-01-31 Electrolux Appliances Aktiebolag Installation device for split air-conditioner
US11841148B2 (en) 2017-12-13 2023-12-12 Electrolux Appliances Aktiebolag Window-type air conditioner
WO2023053712A1 (fr) * 2021-09-30 2023-04-06 ダイキン工業株式会社 Dispositif de ventilation et système de climatisation
JP2023051676A (ja) * 2021-09-30 2023-04-11 ダイキン工業株式会社 換気装置及び空気調和システム
JP7260827B2 (ja) 2021-09-30 2023-04-19 ダイキン工業株式会社 換気装置及び空気調和システム
US11879647B2 (en) 2021-12-22 2024-01-23 Electrolux Appliances Aktiebolag Portable air conditioning unit window installation system

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