AIR CONDITIONER AND AIR CONDITIONING SYSTEM
    2.
    发明公开

    公开(公告)号:EP4411289A1

    公开(公告)日:2024-08-07

    申请号:EP22875551.8

    申请日:2022-07-15

    发明人: OKUMURA, Satoshi

    摘要: An air conditioner includes an outdoor unit that includes a compressor, an outdoor heat exchanger, and an expansion valve and an indoor unit that includes an indoor heat exchanger. The air conditioner includes a refrigerant circuit in which the outdoor unit and the indoor unit are connected to each other by a refrigerant pipe, and is able to perform at least heating operation in which the indoor heat exchanger functions as a condenser for a refrigerant that is compressed by the compressor and the outdoor heat exchanger functions as an evaporator for a refrigerant that is condensed by the indoor heat exchanger. The air conditioner includes an estimation unit that estimates an amount of refrigerant that remains in the refrigerant circuit by using an operating state quantity of the air conditioner in at least the heating operation. The estimation unit includes a plurality of different estimation models that correspond to ranges of the amount of refrigerant that remains in the refrigerant circuit, and t one of the estimation models uses, as the operating state quantity, a degree of supercooling of refrigerant at an outlet of the indoor heat exchanger. As a result, it is possible to determine a refrigerant amount at a desired timing and independently of a remaining refrigerant amount.

    AIR CONDITIONING SYSTEM, ABNORMALITY ESTIMATION METHOD FOR AIR CONDITIONING SYSTEM, AIR CONDITIONER AND ABNORMALITY ESTIMATION METHOD FOR AIR CONDITIONER

    公开(公告)号:EP4317848A1

    公开(公告)日:2024-02-07

    申请号:EP22779670.3

    申请日:2022-02-24

    发明人: SASAKI, Shinji

    摘要: An air conditioner includes a refrigerant circuit in which at least one or more indoor units are connected to an outdoor unit by refrigerant pipes. The air conditioner includes a detection unit that detects a state quantity related to control on the air conditioner and an acquisition unit that acquires a detected value of the state quantity that is detected by the detection unit. The air conditioner further includes an abnormality estimation unit that estimates occurrence of abnormality of the refrigerant circuit by using a detected value of a feature value by assuming that the state quantity related to abnormality of the refrigerant circuit is adopted as the feature value. The abnormality estimation unit adopts the outdoor unit and each of the indoor units as a single pair, estimates occurrence of abnormality in the refrigerant circuit for each of the pairs, estimates that abnormality has occurred in the indoor unit of a subject pair when estimating that abnormality has occurred in any of the pair, and estimates that abnormality has occurred in the outdoor unit when estimating that abnormality has occurred in all of the pairs. As a result, it is possible to estimate the indoor unit or the outdoor unit in which abnormality has occurred.

    CORRECTION DEVICE, PREDICTION DEVICE, METHOD, PROGRAM, AND CORRECTION MODEL

    公开(公告)号:EP4310615A1

    公开(公告)日:2024-01-24

    申请号:EP22771558.8

    申请日:2022-03-18

    摘要: An object is to predict an operational state from operational data when there is no operational data to learn from. An apparatus according to an embodiment of the present disclosure is an apparatus configured to perform correction regarding a predicted value for an operational state predicted from operational data of a device, and includes a provisional prediction model that is trained by machine learning based on training data including operational data and an operational state of a device different from the device, and a correction unit configured to perform correction regarding the predicted value for the operational state of the device, the predicted value being predicted using the provisional prediction model.

    LEARNING DEVICE AND INFERENCE DEVICE FOR STATE OF AIR CONDITIONING SYSTEM

    公开(公告)号:EP4261470A1

    公开(公告)日:2023-10-18

    申请号:EP20965168.6

    申请日:2020-12-11

    IPC分类号: F24F11/38 F24F11/54 F24F11/64

    摘要: A learning device (100) learns a state of an air conditioning system in which refrigerant circulates. The air conditioning system includes an outdoor unit and at least one indoor unit. The learning device (100) includes: a first data acquisition unit (110); and a model generation unit (120). The first data acquisition unit (110) is configured to acquire operation data of the air conditioning system. The model generation unit (120) is configured to convert a specific model (M1 to M3) into a trained model using the operation data. The operation data includes a specific parameter and at least one of a temperature of air passing through the second heat exchanger, a temperature and a pressure of the refrigerant, and a temperature outside a space where each of the at least one indoor unit is arranged. The specific model (M1 to M3) estimates the specific parameter from the operation data other than the specific parameter. The specific parameter includes at least one of an operating frequency of the compressor, a degree of opening of the expansion valve, and an amount of air blown per unit time by the blower.

    AIR CONDITIONER SYSTEM AND METHOD FOR CONTROLLING SAME

    公开(公告)号:EP4148333A1

    公开(公告)日:2023-03-15

    申请号:EP20934338.3

    申请日:2020-06-18

    摘要: The present disclosure relates to an air conditioning system, particularly, to an air conditioning system comprising a supplementary heat source. The air conditioning system of the present invention may comprise: an outdoor unit, an indoor heat exchanger connected to the outdoor unit and including a temperature sensor, a supplementary heat source supplementarily installed for the outdoor unit and operating by means of an energy source different from that for the outdoor unit, a temperature control unit for controlling the temperature of an installation space into which cold air or warm air is supplied by the outdoor unit and the supplementary heat source, and a communication unit comprising an input unit connected to the temperature control unit, a first output unit connected to the supplementary heat source, a second output unit connected to the outdoor unit, and a control unit for processing signals among the input unit, the first output unit, and the second output unit.