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21. 发明公开

EP3470291A1 VEHICLE AIR-CONDITIONING DEVICE AND RAILROAD-CAR COMMUNICATION SYSTEM 有权
公开(公告)号：EP3470291A1
公开(公告)日：2019-04-17
申请号：EP16904663.8
申请日：2016-06-10
申请人： Mitsubishi Electric Corporation
发明人： TASHIRO, Yusuke , HAMADA, Mamoru , OCHIAI, Yasutaka
IPC分类号： B61D27/00 , B60H1/00 , B60H1/32 , F25B49/02
摘要： A vehicle air-conditioning apparatus includes a refrigeration cycle that performs air-conditioning in a vehicle interior of a vehicle; a controller that includes a plurality of operation modes with different continuous operation times for a compressor, and that selects one operation mode from among the plurality of operation modes according to an air-conditioning load in the vehicle interior and executes the one operation mode, during travel operation of the vehicle; a storage unit; and a fault diagnosis unit. The storage unit stores a timing of selecting, from among the plurality of operation modes, a high-load operation mode in which the continuous operation time is equal to or longer than a time that is set in advance, and of executing the high-load operation mode. The fault diagnosis unit performs, during travel operation of the vehicle, fault diagnosis for the refrigeration cycle, after the high-load operation mode is selected and executed by the controller at the timing stored in the storage unit and while the refrigeration cycle is stable.

22. 发明公开

EP3208578A1 REFRIGERATION CYCLE DEVICE AND LIQUID LEVEL DETECTION SENSOR 有权
标题翻译：制冷循环装置和液位检测传感器
公开(公告)号：EP3208578A1
公开(公告)日：2017-08-23
申请号：EP14903972.9
申请日：2014-10-16
申请人： Mitsubishi Electric Corporation
发明人： OCHIAI, Yasutaka , SAITO, Makoto , TOYOSHIMA, Masaki
IPC分类号： G01F23/22 , F25B43/00 , F25B49/02
CPC分类号： G01F23/36 , F24F5/00 , F24F11/30 , F25B13/00 , F25B40/00 , F25B40/04 , F25B43/00 , F25B49/02 , F25B49/027 , F25B2400/04 , F25B2400/16 , F25B2500/19 , F25B2700/04 , F25D17/04 , G01F23/22 , H01H35/18
摘要： Provided is a refrigeration cycle apparatus including: a refrigerant circuit formed by connecting, by a refrigerant pipe, a compressor, a condenser, an expansion device, an evaporator and a liquid reservoir; a liquid level detection sensor including a plurality of heat generating units and a plurality of temperature detection units, the heat generating units being paired with the temperature detection units, and provided in the liquid reservoir, the liquid level detection sensor being configured to detect a liquid level of a refrigerant accumulated in the liquid reservoir, based on a temperature of each of the heat generating units, in which the liquid reservoir includes a container for accumulating the refrigerant, an inlet pipe connected to the refrigerant circuit and configured to allow a portion of the refrigerant flowing out of the container to flow into the container, and in which in the container, a shielding portion is provided between an discharge outlet for the refrigerant of the inlet pipe and the liquid level detection sensor, to prevent the portion of the refrigerant flowing out of the discharge outlet from directly coming into contact with the liquid level detection sensor.
摘要翻译：本发明提供一种冷冻循环装置，其包括：制冷剂回路，其通过制冷剂配管连接压缩机，冷凝器，节流装置，蒸发器和贮液器而构成; 包括多个发热单元和多个温度检测单元的液位检测传感器，所述多个发热单元与所述温度检测单元配对并设置在所述液体储存器中，所述液位检测传感器构造成检测液体根据每个发热单元的温度计算储存在储液器中的制冷剂的液位，其中液体储存器包括用于储存制冷剂的容器;入口管，连接到制冷剂回路并且构造成允许一部分从容器流出的制冷剂流入容器内，并且在容器中，在用于入口管的制冷剂的排出口和液位检测传感器之间设置屏蔽部分，以防止制冷剂的一部分从排出口流出而不与液面检测传感器直接接触。

23. 发明公开

EP2894420A1 REFRIGERATION AND AIR CONDITIONING DEVICE, REFRIGERANT LEAK DETECTOR, AND METHOD FOR DETECTING REFRIGERANT LEAKS 有权
标题翻译：冷却和空调装置，冷却剂泄漏检测器和检测方法的冷却液泄漏
公开(公告)号：EP2894420A1
公开(公告)日：2015-07-15
申请号：EP13822752.5
申请日：2013-05-28
申请人： Mitsubishi Electric Corporation
发明人： OCHIAI, Yasutaka , SAITO, Makoto , UNEZAKI, Fumitake
IPC分类号： F25B49/02
CPC分类号： F25B49/022 , F25B13/00 , F25B41/043 , F25B43/006 , F25B49/005 , F25B49/02 , F25B2313/0294 , F25B2313/0314 , F25B2313/0315 , F25B2500/19 , F25B2500/222 , F25B2600/02 , F25B2600/021 , F25B2600/05 , F25B2600/23 , F25B2600/2513 , F25B2600/2519 , F25B2700/04 , F25B2700/1931 , F25B2700/1933 , F25B2700/2104 , F25B2700/2106 , F25B2700/2108 , F25B2700/2109 , F25B2700/2113 , Y02B30/741
摘要： A refrigeration and air-conditioning apparatus 1 rapidly varies the pressure or the temperature inside a liquid reserve container 24 to identify a liquid level position inside the liquid reserve container 24 on the basis of the surface temperature of the liquid reserve container 24.
摘要翻译：的制冷和空气调节装置1中快速变化的压力或液体储备容器24内的温度，以确定液体容器储备第24的表面温度的基础上，液体储备容器24内的液面位置

24. 发明公开

EP4350257A1 REFRIGERANT LEAKAGE DETERMINATION DEVICE, CONTROL DEVICE, REFRIGERANT LEAKAGE DETERMINATION PROGRAM, AND REFRIGERANT LEAKAGE DETERMINATION METHOD 审中-实审
公开(公告)号：EP4350257A1
公开(公告)日：2024-04-10
申请号：EP21943036.0
申请日：2021-05-27
申请人： MITSUBISHI ELECTRIC CORPORATION
发明人： ONO, Yusei , OCHIAI, Yasutaka , HAMADA, Mamoru
IPC分类号： F25B49/02 , F25B1/00
摘要： A refrigerant leak determination apparatus (300) is provided with a refrigeration cycle device (100), connection devices (105A and 105B), and a control device (200). The refrigeration cycle device (100) is configured with an indoor unit (100A) and an outdoor unit (100B). The refrigeration cycle device (100) includes a refrigerant circuit (120), and performs a refrigeration cycle in which a refrigerant circulates through the refrigerant circuit (120). Each of the connection devices (105A and 105B) has a communication opening to an internal space of the refrigerant circuit (120), and is connected to a pressure sensor (104) that measures a refrigerant pressure in the internal space. The control device (200) causes the refrigeration cycle device (100) to perform oil recovery operation to collect oil inside the refrigerant circuit (120) in a compressor (109), and determines a leak of the refrigerant from the refrigerant circuit (120), by comparing a reference pressure with the refrigerant pressure measured by the pressure sensor (104) after the oil recovery operation.

25. 发明公开

EP4293455A1 DATA PROCESSING DEVICE AND DATA PROCESSING METHOD 审中-实审
公开(公告)号：EP4293455A1
公开(公告)日：2023-12-20
申请号：EP21925701.1
申请日：2021-02-15
申请人： MITSUBISHI ELECTRIC CORPORATION
发明人： HASHIKAWA, Takahiro , OCHIAI, Yasutaka
IPC分类号： G05B23/02 , F24F11/64 , G05B13/04
摘要： An operation data acquisition unit (120) acquires from an air conditioning system (1), operation data of the air conditioning system (1). A model application determination unit (122) determines whether or not the operation data satisfies an application condition for applying the operation data to an inference model for inferring status of the air conditioning system (1). Further, the model application determination unit (122) stores the operation data into an operation data holding unit (130) as pending operation data, when the operation data does not satisfy the application condition. A model updating unit (124) determines whether or not the pending operation data is operation data suitable for an update of the inference model, and updates the inference model using the pending operation data, when it is determined that the pending operation data is the operation data suitable for the update of the inference model.

26. 发明公开

EP4092353A1 REFRIGERATION CYCLE DEVICE 有权
公开(公告)号：EP4092353A1
公开(公告)日：2022-11-23
申请号：EP20913208.3
申请日：2020-05-22
申请人： MITSUBISHI ELECTRIC CORPORATION
发明人： OCHIAI, Yasutaka , TASAKI, Nobuaki , SATO, Fuyuki
IPC分类号： F25B5/02 , F25B49/02 , F25B1/00
摘要： A refrigeration cycle apparatus includes a refrigeration cycle circuit that has a compressor, a condenser, an expansion device, and an evaporator that are connected through a pipe, the refrigeration cycle circuit being configured to allow refrigerant to circulate in the refrigeration cycle circuit, and a controller configured to determine whether the refrigerant leaks or whether the expansion device malfunctions on the basis of a degree of subcooling at an outlet of the condenser and a degree of superheat at an outlet of the evaporator or a degree of superheat at a suction port of the compressor.

27. 发明公开

EP3933307A1 REFRIGERATION CYCLE DEVICE 有权
公开(公告)号：EP3933307A1
公开(公告)日：2022-01-05
申请号：EP19917204.0
申请日：2019-02-28
申请人： MITSUBISHI ELECTRIC CORPORATION
发明人： OCHIAI, Yasutaka
IPC分类号： F25B49/02
摘要： A refrigeration cycle apparatus includes a refrigeration cycle circuit, a first junction portion, a second junction portion, a bypass pipe connecting the first junction portion and the second junction portion, a first valve provided between the second junction portion and a refrigerant flow switching device, a second valve provided to the bypass pipe, a first temperature sensor configured to measure a temperature in a room, a second temperature sensor configured to measure a temperature of refrigerant at a liquid portion of an indoor heat exchanger, and a third temperature sensor configured to measure a temperature of refrigerant at a gas portion of the indoor heat exchanger. In an operation status in which a compressor operates, the indoor heat exchanger operates as a condenser, the first valve is closed, and the second valve is opened, when a temperature obtained by subtracting a temperature measured by the third temperature sensor from a saturation temperature obtained by converting a condensing pressure of the refrigerant is larger than a first threshold temperature, or when a temperature obtained by subtracting a temperature measured by the first temperature sensor from a temperature measured by the second temperature sensor is smaller than a second threshold temperature, the refrigeration cycle apparatus is configured to detect an abnormality at at least one of an expansion valve and the second valve.

28. 发明公开

EP3819565A1 REFRIGERATION CYCLE DEVICE 有权
公开(公告)号：EP3819565A1
公开(公告)日：2021-05-12
申请号：EP18925696.9
申请日：2018-07-06
申请人： Mitsubishi Electric Corporation
发明人： OCHIAI, Yasutaka , NAKANO, Haruo
IPC分类号： F25B49/02
摘要： A refrigeration cycle apparatus includes a refrigeration cycle circuit, a first valve provided in a first section of the refrigeration cycle circuit, a second valve provided in a second section of the refrigeration cycle circuit, a pressure sensor provided in a third section between the first valve and the second valve including an indoor heat exchanger, and a temperature sensor configured to detect an ambient temperature of the third section. The notifying unit notifies of a leakage of refrigerant when a relationships Pa

29. 发明公开

EP3531085A1 LIQUID LEVEL SENSOR AND REFRIGERATION CYCLE SYSTEM 有权
公开(公告)号：EP3531085A1
公开(公告)日：2019-08-28
申请号：EP16919274.7
申请日：2016-10-19
申请人： Mitsubishi Electric Corporation
发明人： OCHIAI, Yasutaka
IPC分类号： G01F23/00 , F25B43/00 , F25B43/02 , G01F23/24 , G01F23/26 , G01F23/28
摘要： A liquid level detection device that is provided in a vessel and configured to detect a liquid level of fluid stored in the vessel includes a first plate formed in a plate shape, and a second plate formed in a plate shape and disposed to face the first plate. The first plate is disposed in such a manner that a surface opposite to a surface facing the second plate is orthogonal to a flow direction of fluid around the first plate in the vessel.

30. 发明授权

EP3086048B1 AIR-CONDITIONING DEVICE 有权
公开(公告)号：EP3086048B1
公开(公告)日：2019-08-28
申请号：EP13899861.2
申请日：2013-12-19
申请人： Mitsubishi Electric Corporation
发明人： OCHIAI, Yasutaka , UNEZAKI, Fumitake , SAITO, Makoto , YOSHIMURA, Kiyoshi , ABE, Ryoji
IPC分类号： F24F11/30 , F24F110/10 , F24F110/20 , F24F11/62 , F24F11/77 , F24F11/83 , F24F11/79

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