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公开(公告)号：US20220107098A1
公开(公告)日：2022-04-07
申请号：US17554871
申请日：2021-12-17
Applicant: DAIKIN INDUSTRIES, LTD.
Inventor： Yasunori OKAMOTO , Naotoshi FUJITA , Kouji TATSUMI , Masaaki KAWAGISHI , Shinya UMASE
Abstract: When an outdoor air handler performs a heating humidifying operation and an air conditioner performs a cooling operation, a control device adjusts at least one of a to-be-supplied air temperature of the outdoor air handler, a to-be-supplied air flow rate of the outdoor air handler, a to-be-supplied water flow rate of the outdoor air handler, and a cooling temperature that is a temperature at an air heat exchanger of the air conditioner. The control device adjusts the to-be-supplied air temperature and the cooling temperature on the basis of dehumidification information, operation information, temperature information, and humidity information. The operation information is information regarding an operating state of the air conditioner.
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公开(公告)号：US20220107109A1
公开(公告)日：2022-04-07
申请号：US17554527
申请日：2021-12-17
Applicant: DAIKIN INDUSTRIES, LTD.
Inventor： Naotoshi FUJITA
IPC: F24F11/46 , F24F11/74 , G05B19/042
Abstract: An air-conditioning system includes an outside air processing device, an air-conditioning device, and a control unit. The outside air processing device adjusts the temperature of outside air taken thereinto, and supplies the outside air to a plurality of indoor spaces. The air-conditioning device includes a plurality of indoor units at least one of which is installed in each of a plurality of target spaces that are some or all of the indoor spaces. The air-conditioning device adjusts the temperatures of air in the target spaces. The control unit adjusts the flow rate of air blown into each target space by the outside air processing device in accordance with an operating state of the at least one of the indoor units to reduce power consumption of the air-conditioning system.
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公开(公告)号：US20190309964A1
公开(公告)日：2019-10-10
申请号：US16470605
申请日：2018-01-26
Applicant: DAIKIN INDUSTRIES, LTD.
Inventor： Naotoshi FUJITA , Eisaku OKUBO , Nobuki MATSUI , Yoshinori NARIKAWA
IPC: F24F3/14 , F24F1/0083
Abstract: Disclosed is a humidity control apparatus which ensures a sufficient dehumidification amount without increasing an area of a gas-liquid contact portion in a dehumidification unit, regardless of the type of liquid absorbent used. The humidity control apparatus includes an absorbent circuit connecting a liquid-based dehumidification module, a recovery module, and a liquid-cooling heat exchanger which cools, with a refrigerant, a liquid absorbent before being used in the liquid-based dehumidification module. A refrigerant-cooling-based dehumidification module is positioned upstream of the liquid-based dehumidification module in a flow direction of target air, and cools and dehumidifies, with the refrigerant, the target air before being dehumidified in the module. The liquid-cooling heat exchanger and the refrigerant-cooling-based dehumidification module are connected to a single refrigerant circuit together with a liquid-heating heat exchanger.
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公开(公告)号：US20250044003A1
公开(公告)日：2025-02-06
申请号：US18720232
申请日：2022-12-08
Applicant: DAIKIN INDUSTRIES, LTD.
Inventor： Shota TSURUZONO , Takashi TAKAHASHI , Tsunahiro ODO , Nobuki MATSUI , Yoshiki YAMANOI , Naotoshi FUJITA , Takuya HANADA , Yuta IYOSHI , Kumiko SAEKI , Takeru MIYAZAKI , Toshiyuki MAEDA , Tetsuya OKAMOTO
Abstract: A ventilation apparatus includes a compressor; a first heat exchanger configured to function as a condenser or an evaporator; a first air flow path configured to supply air taken in from outdoors to an indoor space after passing through the first heat exchanger; a second heat exchanger configured to function as a condenser or an evaporator; a second air flow path configured to exhaust air taken in from the indoor space to the outdoors after passing through the second heat exchanger; a refrigerant circuit through which a refrigerant flows, the refrigerant circuit being connected to the compressor, the first heat exchanger, and the second heat exchanger by a refrigerant pipe; and a control unit configured to guide a flow of air in the indoor space to the second heat exchanger when the second heat exchanger is determined to be in a frosted state, to increase a temperature of the second heat exchanger, and configured to output a predetermined instruction to an actuator configured to control a state of the refrigerant in the refrigerant circuit to increase a temperature of the refrigerant flowing into the second heat exchanger.
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公开(公告)号：US20240337401A1
公开(公告)日：2024-10-10
申请号：US18743804
申请日：2024-06-14
Applicant: DAIKIN INDUSTRIES, LTD.
Inventor： Takashi TAKAHASHI , Tsunahiro ODO , Shota TSURUZONO , Nobuki MATSUI , Takuya HANADA , Naotoshi FUJITA , Yoshiki YAMANOI , Yuta IYOSHI , Kumiko SAEKI , Takeru MIYAZAKI , Toshiyuki MAEDA , Tetsuya OKAMOTO
IPC: F24F11/43 , F24F11/81 , F24F11/84 , F24F140/20
CPC classification number: F24F11/43 , F24F11/81 , F24F11/84 , F24F2140/20
Abstract: A ventilation apparatus includes a processor; a compressor; a first heat exchanger; a first air flow path configured to supply air from outdoors to an indoor space after passing through the first heat exchanger; a second heat exchanger; a second air flow path configured to exhaust air from the indoor space to the outdoors after passing through the second heat exchanger; and a refrigerant circuit through which a refrigerant flows, the refrigerant circuit being connected to the compressor, and the first and second heat exchangers. The processor detects whether a predetermined reference indicating a possibility of frosting in the second heat exchanger is satisfied while the second heat exchanger is functioning as an evaporator, and controls a temperature of the refrigerant flowing through the second heat exchanger such that the second heat exchanger will have a temperature at which frosting does not occur, when the predetermined reference is satisfied.
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Patent Agency Ranking
公开(公告)号：US20220205661A1
公开(公告)日：2022-06-30
申请号：US17604491
申请日：2020-04-24
Applicant: DAIKIN INDUSTRIES, LTD.
Inventor： Naotoshi FUJITA , Hiroshi NAKAYAMA , Yasunori OKAMOTO
IPC: F24F11/46 , F24F11/63 , F24F11/83 , G06N20/00 , G05B19/042
Abstract: A machine learning apparatus for optimizing transfer of heat quantity is provided. A machine learning apparatus for learning at least one of a temperature and a flowrate at which a thermal transfer apparatus transfers a thermal medium in an air conditioning system including a device on a heat-providing side, a device on a heat-using side, and the thermal transfer apparatus configured to transfer the thermal medium from the device on the heat-providing side to the device on the heat-using side, the machine learning apparatus including: a state variable obtaining unit configured to obtain state variables including an operation condition of the device on the heat-providing side, an operation condition of the device on the heat-using side, and a value correlated with a heat quantity required by the device on the heat-using side; a learning unit configured to perform learning by associating the state variables with the at least one of the temperature and the flowrate; and a reward calculating unit configured to calculate a reward, based on a total value of a power consumption of the device on the heat-providing side, a power consumption of the device on the heat-using side, and a power consumption of the thermal transfer apparatus, wherein the learning unit performs learning by using the reward.
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公开(公告)号：US20220099325A1
公开(公告)日：2022-03-31
申请号：US17594393
申请日：2020-04-17
Applicant: DAIKIN INDUSTRIES, LTD.
Inventor： Yasunori OKAMOTO , Naotoshi FUJITA
IPC: F24F11/64 , F24F11/46 , G06N20/00 , G05B19/042
Abstract: An air-conditioning system that optimizes operation capacity of an outside air conditioning unit and operation capacity of an air conditioning unit is provided. An air-conditioning system includes an outside air conditioning device, an air conditioning device, and a machine learning apparatus, and includes a state variable acquiring unit configured to acquire state variables including a condition of outside air, a condition of inside air, an operation condition of the outside air conditioning device, an operation condition of the air conditioning device, and a temperature or humidity set for a target space, a learning unit configured to perform learning by associating the state variables with at least either the operating capacity of the outside air conditioning device or the operating capacity of the air conditioning device, and a reward calculating unit configured to calculate a reward that correlates with a total of energy consumption of the outside air conditioning device and energy consumption of the air conditioning device. The learning unit performs the learning by using the reward.
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公开(公告)号：US20220090813A1
公开(公告)日：2022-03-24
申请号：US17541008
申请日：2021-12-02
Applicant: DAIKIN INDUSTRIES, LTD.
Inventor： Naotoshi FUJITA
Abstract: An outside air processing device adjusts the temperature and humidity of outside air taken thereinto, and then supplies the adjusted air to a target space. The outside air processing device includes a heating element configured to heat air, a humidifying element configured to humidify air that has passed through the heating element, and a control unit for outside air processing configured to change the temperature of air at an inlet of the humidifying element in accordance with the humidity in the target space.
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公开(公告)号：US20200080742A1
公开(公告)日：2020-03-12
申请号：US16492973
申请日：2018-03-30
Applicant: Daikin Industries, LTD.
Inventor： Yasunori OKAMOTO , Naotoshi FUJITA , Kouji TATSUMI , Masaaki KAWAGISHI
Abstract: Provided is an air conditioning system that achieves energy conservation and comfortableness. In the air conditioning system (100), an outdoor-air conditioner (10) sucks outdoor-air (OA) and supplies the outdoor-air as supply air (SA) from an air handling unit (30). An indoor-air conditioner (50) cools or heats indoor-air (IA) that is an air inside a target space (SP) by using an indoor unit (70) and supplies the air to the target space (SP). A general control unit (90) controls performs cooperative load control in which an operating capacity of the outdoor-air conditioner (10) and an operating capacity of the indoor-air conditioner (50) are controlled in cooperation in accordance with a status of the outdoor-air (OA), a status of the indoor-air (IA), an operation status of the outdoor-air conditioner (10), and/or an operation status of the indoor-air conditioner (50). The general control unit (90) controls, in the cooperative load control, at least one of a parameter of the outdoor-air conditioner (10) and a parameter of the indoor-air conditioner (50) such that a temperature or humidity of the indoor-air (IA) approaches a set value and also a total amount of power consumption of the outdoor-air conditioner (10) and power consumption of the indoor-air conditioner (50) is reduced.
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公开(公告)号：US20240328658A1
公开(公告)日：2024-10-03
申请号：US18739726
申请日：2024-06-11
Applicant: DAIKIN INDUSTRIES, LTD.
Inventor： Tsunahiro ODO , Takashi TAKAHASHI , Shota TSURUZONO , Takuya HANADA , Naotoshi FUJITA , Yoshiki YAMANOI , Yuta IYOSHI , Kumiko SAEKI , Takeru MIYAZAKI , Nobuki MATSUI , Toshiyuki MAEDA , Tetsuya OKAMOTO
IPC: F24F11/64 , F24F11/00 , F24F11/46 , F24F11/77 , F24F11/86 , F24F110/10 , F24F110/20 , F24F140/50 , F24F140/60
CPC classification number: F24F11/64 , F24F11/0008 , F24F11/46 , F24F11/77 , F24F11/86 , F24F2110/10 , F24F2110/20 , F24F2140/50 , F24F2140/60 , F24F2203/021
Abstract: The air-conditioning system according to an embodiment is provided with a ventilation device, an air-conditioner, a processor, and a memory storing one or more programs, which when executed, cause the processor to control the ventilation device and the air-conditioner. The processor stores a first capability indicating a heat load that can be output corresponding to the power consumption of the ventilation device and a second capability indicating a heat load that can be output corresponding to the power consumption of the air conditioner, acquires the temperature of an indoor space, and sets the ventilation device and the air conditioner to share the first heat load that needs to be adjusted in the indoor space calculated based on the temperature of the indoor space according to the first capability and the second capability.
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