EP4433765A1 - Système de climatisation - Google Patents

Système de climatisation

Info

Publication number
EP4433765A1
EP4433765A1 EP22798062.0A EP22798062A EP4433765A1 EP 4433765 A1 EP4433765 A1 EP 4433765A1 EP 22798062 A EP22798062 A EP 22798062A EP 4433765 A1 EP4433765 A1 EP 4433765A1
Authority
EP
European Patent Office
Prior art keywords
condenser
fan
control unit
evaporator
refrigerant
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
EP22798062.0A
Other languages
German (de)
English (en)
Inventor
Mathias Venschott
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Truma Geraetetechnik GmbH and Co KG
Original Assignee
Truma Geraetetechnik GmbH and Co KG
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 Truma Geraetetechnik GmbH and Co KG filed Critical Truma Geraetetechnik GmbH and Co KG
Publication of EP4433765A1 publication Critical patent/EP4433765A1/fr
Pending legal-status Critical Current

Links

Classifications

    • 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
    • F24F11/70—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
    • 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
    • F25B2500/00—Problems to be solved
    • F25B2500/05—Cost reduction
    • 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
    • F25B2500/00—Problems to be solved
    • F25B2500/12—Sound
    • 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
    • F25B2500/00—Problems to be solved
    • F25B2500/19—Calculation of parameters
    • 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
    • F25B2600/00—Control issues
    • F25B2600/02—Compressor control
    • F25B2600/021—Inverters therefor
    • 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
    • F25B2600/00—Control issues
    • F25B2600/11—Fan speed control
    • F25B2600/111—Fan speed control of condenser fans
    • 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
    • F25B2600/00—Control issues
    • F25B2600/11—Fan speed control
    • F25B2600/112—Fan speed control of evaporator fans
    • 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
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/21—Temperatures
    • F25B2700/2104—Temperatures of an indoor room or compartment
    • 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
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/21—Temperatures
    • F25B2700/2106—Temperatures of fresh outdoor air
    • 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
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/21—Temperatures
    • F25B2700/2116—Temperatures of a condenser
    • 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
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/21—Temperatures
    • F25B2700/2117—Temperatures of an evaporator

Definitions

  • the present invention relates to an air conditioner.
  • a fan and an associated heat exchanger belong to the evaporator, in which the air in the room to be cooled is cooled by interacting with the refrigerant.
  • Another blower and an associated heat exchanger belong to the condenser, in which thermal energy of the refrigerant is transferred to the ambient air and thus dissipated.
  • the process of transferring the thermal energy of the indoor air to the outdoor air requires electrical energy, which is usually made available via the local power grid or, if necessary, the battery of a vehicle (e.g. mobile home or caravan).
  • electrical energy which is usually made available via the local power grid or, if necessary, the battery of a vehicle (e.g. mobile home or caravan).
  • the general aim is for the energy requirement to be as low as possible.
  • a mere reduction in energy demand may conflict with a user's requirements for air conditioning performance. It is therefore necessary to weigh up the energy requirements and the performance of the air conditioning system. Details for controlling air conditioning systems can be found e.g. For example, see DE 10 2007 055 006 A1, JP 6 739 671 B1, DE 11 2017 002 005 T5, EP 1 923 240 A1, DE 10 2019 109 379 A1, CN 1 10 906 505 A or U.S. 2014/0345307 A1.
  • the object on which the invention is based is therefore to propose an air conditioning system that allows energy-efficient operation that is appropriate to the situation.
  • the invention achieves the object by means of an air conditioning system with an evaporator, an evaporator fan, a condenser, a condenser fan, a compressor, an expansion element, a control unit and at least three temperature sensors, the condenser fan assigned to the condenser being able to be regulated in terms of its fan output, the compressor in its compression output can be regulated, a first temperature sensor of the three temperature sensors being assigned to the evaporator, a second temperature sensor of the three temperature sensors being assigned to the condenser, a third temperature sensor of the three temperature sensors measuring an actual temperature
  • CONFIRMATION COPY outside of the air conditioning system, with the control unit processing measured temperature values from the third temperature sensor with regard to a predeterminable temperature setpoint, and with the control unit having a regulating effect on the condenser fan and/or on the compressor, so that the air conditioning system works in one of at least two different modes.
  • a control unit which acts on a controllable condenser fan and/or on a controllable compressor.
  • the performance of the two components and thus also their energy requirements can thus be adjusted.
  • the purpose of this is that the air conditioning system can be operated in one of at least two different modes.
  • a mode is an operating mode that takes into account the needs of the user of the air conditioner and/or the energy requirements.
  • a few modes and the respective special features in different configurations of the air conditioning system are discussed below.
  • the control unit uses measurement data from three temperature sensors. Two of the temperature sensors are assigned to the evaporator and the condenser to measure the temperature there. Some of the following configurations relate to the two temperature sensors for determining internal temperatures.
  • the third temperature sensor measures the temperature outside of the air conditioning system and preferably the temperature of the air that is to be tempered by the air conditioning system. This is therefore the actual temperature, which is to be brought to a setpoint temperature that can be specified by a user. A total of three measured temperature values and one setpoint temperature value are therefore available to the control unit in order to regulate the air conditioning system in accordance with the at least two operating modes.
  • One embodiment includes that the evaporator fan assigned to the evaporator can be regulated in terms of its fan power, and that the control unit has a regulating effect on the evaporator fan, so that the air conditioning system works in one mode.
  • the control unit has a regulating effect on the evaporator fan, so that the air conditioning system works in one mode.
  • the first and/or the second temperature sensor are configured or positioned.
  • the first temperature sensor is designed and arranged in such a way that the first temperature sensor detects temperature values in a region of the evaporator in which a phase change of the refrigerant takes place.
  • An alternative or supplementary embodiment includes that the second temperature sensor is designed and arranged in such a way that the second temperature sensor detects temperature values in a region of the condenser in which a phase change of the refrigerant takes place.
  • the two aforementioned configurations each relate to the phase change of the refrigerant in the evaporation or in the condenser.
  • the temperature is measured at which the phase change takes place in the respective component of the air conditioning system. If the temperature is measured in the region of the phase change, the pressure under which the refrigerant is located depends on the properties of the refrigerant and the temperature.
  • control unit processes the measured temperature values from the first temperature sensor and the second temperature sensor in order to obtain information about a pressure of a refrigerant in the evaporator and in the condenser.
  • control unit uses the measured values of the first and second temperature sensors to obtain information about the pressure at which the respective phase change of the refrigerant takes place.
  • the following refinements relate to modes in which the air conditioning system can be operated.
  • the modes are each given a purely exemplary name in order to be able to distinguish them more easily from one another.
  • the labels serve therefore only the overview and are purely arbitrary, so that they are also omitted or z. B. can be replaced by numbers.
  • One embodiment includes that the control unit acts in a “Cool max” mode on the evaporator fan and/or on the condenser fan and/or on the compressor in a regulating manner depending on the predefinable setpoint temperature and the measured temperature values of the third temperature sensor, so that the air conditioning system working at maximum power.
  • "Cool max” mode the air conditioning is operated in such a way that the target temperature is reached as quickly as possible, i. H. that the difference between the actual temperature in the room to be cooled and the specified target temperature is reduced as quickly as possible.
  • the evaporator fan and the condenser fan are operated at maximum fan power and the compressor is operated at maximum compression power.
  • control unit has a regulating effect on the evaporator fan and/or on the condenser fan in a "minimum power consumption" mode, so that the pressure of the refrigerant in the evaporator is equal to the pressure of the refrigerant in the condenser within a predefinable tolerance range .
  • the goal is for the air conditioner to use as little electricity as possible.
  • the evaporator fan and/or the condenser fan is controlled in such a way that the pressure of the refrigerant during evaporation is as equal as possible to the pressure of the refrigerant in the condenser. Both pressures should at least not differ from each other outside of a tolerance range. This reduces the energy requirement of the compressor, which is located in the refrigeration circuit between the evaporator and the condenser.
  • An alternative or supplementary embodiment includes the control unit acting in a “minimum power consumption” mode in a regulating manner on the condenser fan such that the pressure of the refrigerant in the condenser is in a minimum range.
  • the control unit operates the condenser fan in such a way that the pressure of the refrigerant in the condenser is as low as possible.
  • the control unit increases the fan output of the evaporator fan in the "minimum power consumption” mode in order to reduce the pressure of the refrigerant in the condenser.
  • the control unit intervenes in such a way that a pressure difference between the pressures of the refrigerant in the evaporator and in the condenser is as small as possible. If, in one embodiment, the outside air is routed through the condenser with a high pressure loss, the control unit increases the fan output of the condenser fan by increasing the speed of this fan. As a result, more air volume flow is conveyed and the pressure of the refrigerant in the condenser drops. Although this means that the power consumption of the condenser fan is increased, the compressor requires significantly less electrical energy. This is relevant because the compressor usually requires more energy than the fan devices.
  • One embodiment includes that the control unit acts in a "silent" mode on the evaporator fan and on the condenser fan in a regulating manner so that the fan outputs are each in a definable minimum range, and that the control unit in the "silent" mode on the compressor acts as a function of the target temperature and the measured temperature values of the third temperature sensor.
  • the generation of noise is thus reduced in that the two controllable fans are operated at the lowest possible power, for example at minimum speed.
  • the temperature is regulated by intervening on the compressor.
  • control unit in the “silent” mode reduces the compression output of the compressor and/or increases the fan output of the condenser fan if the pressure of the refrigerant in the compressor is above a limit value. If the pressure of the refrigerant in the compressor increases too much, then in the so-called “silent” mode in this embodiment either the compression capacity of the compressor is reduced or the blower capacity of the condenser fan is increased. Alternatively, both interventions can also be carried out.
  • the air conditioner can be connected to a rechargeable energy store, that the control unit - preferably via a Input voltage of the energy store - determines an amount of energy stored in the energy store, and that in an "optimal battery operation" mode, the control unit, based on the enterable setpoint temperature, the determined amount of energy and a predefinable running time, regulates the evaporator fan and/or the condenser fan and/or or acts on the compressor, so that the air conditioning system keeps the actual temperature within a definable limit range until the end of the term.
  • the air conditioner receives the electrical energy from a rechargeable energy store. This is z. B. given by a battery.
  • the control unit determines the amount of energy present in the energy store by, for example, evaluating the input voltage of the energy store.
  • the air conditioner is operated in an "optimal battery operation" mode.
  • a target temperature and a desired running time of the air conditioning system are to be specified by a user.
  • the control unit regulates the air conditioning depending on the amount of energy available.
  • the predefinable limit range for the actual temperature is the range within which the actual temperature can deviate from the target temperature without the cooling capacity of the air conditioning system having to be changed.
  • One embodiment provides that in a "test" mode the control unit acts in a regulating manner on the evaporator fan and/or on the condenser fan and/or on the compressor, so that the refrigerant in the evaporator has a predeterminable evaporator test pressure and/or the refrigerant has a specifiable condenser test pressure in the condenser, that the control unit determines a value of a current consumption of the compressor, and that the control unit, based on the determined value of the current consumption and from stored data, derives a statement as to whether there is a loss of refrigerant.
  • Predetermined pressures of the refrigerant in the evaporator and/or in the condenser are generated by the controllable fans. By measuring the power consumption of the compressor and comparing it with a stored map, the control unit can check whether refrigerant has escaped, for example.
  • one of two temperature sensors is used to determine whether the associated component is icing up. Additional sensors for this monitoring can therefore be dispensed with in each case.
  • the two configurations differ in whether the air conditioning system is operated in a cooling mode and in a heating mode. So the circuit of the refrigerant in different directions so that the air in the room is either cooled or heated.
  • control unit evaluates the measured temperature values of the first temperature sensor, which is assigned to the evaporator, when the air conditioning system is in cooling mode to determine whether the evaporator is icing up.
  • control unit evaluates the measured temperature values of the second temperature sensor, which is assigned to the condenser, when the air conditioning system is in heating mode to determine whether the condenser is icing up.
  • One configuration includes that the control unit evaluates the measured temperature values of the second temperature sensor, which is assigned to the condenser, to determine whether a pressure of the refrigerant in the condenser is within a permissible pressure range. By knowing the pressure from the temperature measurement, impermissibly high pressures can be avoided. This can influence the selection of materials and wall thicknesses.
  • the air conditioner is portable.
  • the air conditioner is designed in terms of their dimensions and in terms of their weight so that they z. B. can be worn by a user.
  • FIG. 1 shows a schematic representation of an air conditioning system.
  • FIG 1 schematically shows the structure of an air conditioning system.
  • a refrigerant circulates, which in an evaporator 1 undergoes the phase change from liquid/vapor to gaseous and within the condenser 3 the phase change from gaseous to liquid completes.
  • Temperature and pressure are constant during the phase change in the evaporator 1 and in the condenser.
  • the respective values of pressure and temperature are firmly assigned to each other via the thermodynamic properties of the refrigerant used, so that the pressure value results from a temperature measurement.
  • the refrigerant in the evaporator 1 passes through the following states: After expansion in the expansion element 4, the refrigerant enters the evaporator 1 essentially in vapor form. The gas content is low and the liquid content is high. The proportion of gas within the evaporator 1 increases until there is no longer any liquid. This is the phase change. The last section of the evaporator 1 is used to superheat the refrigerant. This ensures that the downstream compressor 2 is fed only with gaseous refrigerant. The downstream compressor 2 compresses the gaseous refrigerant. In the condenser 3, the refrigerant goes through the following states: The refrigerant is first cooled (so-called heat dissipation section).
  • the phase change from gaseous to liquid is followed by the phase change from gaseous to liquid.
  • the refrigerant is supercooled so that it is always liquid at the inlet of the subsequent expansion device 4.
  • the overheating and/or subcooling sections are outside of the evaporator 1 or the condenser 3. A so-called internal heat exchanger is then often used.
  • a speed-controllable compressor 2 For the operation of the different modes, a speed-controllable compressor 2, a speed-controllable condenser fan 30 and even a speed-controllable evaporator fan 10 are present in the embodiment shown.
  • controllable is to be understood in such a way that the speeds can be changed continuously or in steps.
  • the evaporator 1 and the condenser 3 are each provided with a temperature sensor 61 , 62 .
  • the first temperature sensor 61 and the second temperature sensor 62 are located on the refrigerant pipes—not shown here—at that point at which a phase change of the refrigerant takes place. These phase change areas are determined beforehand under different conditions (such as, for example, limit values for the temperatures and the relative humidity in which the air conditioning system is used, as well as minimum and maximum speeds of the controllable fans and the controllable compressor).
  • the temperature measuring point is located in the middle of the refrigerant pipe loop of the respective heat exchanger evaporator or condenser.
  • thermodynamic properties of the refrigerant In the case of multi-flow heat exchangers, for example, a number of temperature sensors are provided in one embodiment, the measured values of which are averaged. Alternatively, the temperature is only measured in one strand. By measuring the evaporation or condensation temperature, conclusions can be drawn about the evaporation or condensation pressure via the thermodynamic properties of the refrigerant.
  • the compressor 2 In general, it can be said that the current consumption and thus also the power consumption of the compressor 2 is lowest the lower the pressure stroke that it has to accomplish. Furthermore, the compressor 2 usually has the greatest current or power consumption compared to the requirements of the two fans 10, 30.
  • the user of the air conditioner is in a room with 35 °C and 50% relative humidity.
  • the air conditioner exchanges the air, which is passed through the condenser 3, with the environment outside the room via two hoses (not shown here) (once for suction and once for blowing out). It is therefore a so-called two-channel room conditioner.
  • the air that passes through the evaporator 1 is circulated in the room.
  • the user sets his room air conditioner to a target temperature of 23 °C.
  • the air conditioning system will now cool the room to the target temperature as quickly as possible with the maximum available cooling capacity.
  • the control unit 5 then reduces the output of the compressor 2 and/or the output of the evaporator fan 10 and/or the condenser fan 30 and then regulates such that the room temperature remains essentially constant.
  • the air conditioning system can determine the high and low pressure (i.e.: condensation or evaporation pressure) and try to keep the pressure difference as small as possible. This allows additional operating modes of the air conditioning system, as have been described above.

Landscapes

  • 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)

Abstract

L'invention concerne un système de climatisation. Un ventilateur de condenseur (30) présente une puissance de ventilateur réglable. Le compresseur (3) a une puissance de compresseur réglable. Deux capteurs de température (61, 62) sont associés à l'évaporateur (1) et au condenseur (3). Un troisième capteur de température (63) mesure une température réelle à l'extérieur du système de climatisation. Une unité de commande (5) a un effet régulateur sur le ventilateur de condenseur (30) et/ou sur le compresseur (3), de sorte que le système de climatisation fonctionne dans un mode d'au moins deux modes différents.
EP22798062.0A 2021-11-18 2022-10-17 Système de climatisation Pending EP4433765A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102021005724.4A DE102021005724A1 (de) 2021-11-18 2021-11-18 Klimaanlage
PCT/EP2022/000093 WO2023088577A1 (fr) 2021-11-18 2022-10-17 Système de climatisation

Publications (1)

Publication Number Publication Date
EP4433765A1 true EP4433765A1 (fr) 2024-09-25

Family

ID=84045084

Family Applications (1)

Application Number Title Priority Date Filing Date
EP22798062.0A Pending EP4433765A1 (fr) 2021-11-18 2022-10-17 Système de climatisation

Country Status (6)

Country Link
US (1) US20250020356A1 (fr)
EP (1) EP4433765A1 (fr)
CN (1) CN118265882A (fr)
AU (1) AU2022393093A1 (fr)
DE (1) DE102021005724A1 (fr)
WO (1) WO2023088577A1 (fr)

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JP2023544331A (ja) * 2020-09-30 2023-10-23 ジョンソン・コントロールズ・タイコ・アイピー・ホールディングス・エルエルピー バイパス導管を有するｈｖａｃシステム
US20240068699A1 (en) * 2021-02-17 2024-02-29 Mitsubishi Electric Corporation Air conditioning apparatus

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WO2023088577A1 (fr) 2023-05-25

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