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公开(公告)号：US20220120485A1
公开(公告)日：2022-04-21
申请号：US17426302
申请日：2019-04-02
发明人： Koji YAMAGUCHI
IPC分类号： F25B49/02
摘要： An air-conditioning apparatus includes a first indoor unit included in a single refrigeration cycle and an outdoor unit connected to the first indoor unit via a first refrigerant pipe, and the outdoor unit is included in the single refrigeration cycle. The first indoor unit is provided with a first refrigerant leakage sensor configured to detect leakage of refrigerant flowing through the first refrigerant pipe and a concentration of leaked refrigerant, and the outdoor unit includes a compressor configured to compress the refrigerant flowing through the first refrigerant pipe, a first flow control valve configured to adjust a flow rate of the refrigerant flowing through the first refrigerant pipe, and a control unit configured to stop the compressor and fully close the first flow control valve in a case where leakage of the refrigerant flowing through the first refrigerant pipe is detected by the first refrigerant leakage sensor, and configured to change, after the compressor is stopped and the first flow control valve is fully closed, an opening speed of the first flow control valve to a speed less than an opening speed of the first flow control valve adopted before the leakage of the refrigerant is detected.
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公开(公告)号：US20210003291A1
公开(公告)日：2021-01-07
申请号：US16623901
申请日：2017-08-21
发明人： Koji YAMAGUCHI , Tetsuya TAZAWA
IPC分类号： F24F1/0047 , F24F13/20 , F24F13/30 , F24F13/08
摘要： The ceiling concealed air-conditioning apparatus includes: a body containing a heat exchanger, a fan and an opening port; a decorative panel disposed below the body and configured to cover a periphery of the opening port; and a suction grille including, a rotary shaft attachable to the decorative panel and being configured to cover the opening port, wherein the suction grille includes: a locking element mounted on the suction grille so that it can slide and configured to be locked with the decorative panel; plate springs on respective sides of the locking element perpendicular to a sliding direction of the locking element and extending vertically in opposite directions; and spring supports configured to support both end faces of the respective plate springs at different positions, the plate springs include a long plate spring and a short plate spring placed such that the long plate spring engages the decorative panel first.
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公开(公告)号：US20240159238A1
公开(公告)日：2024-05-16
申请号：US18549418
申请日：2021-05-07
发明人： Atsushi KONO , Takuya TERAMOTO , Yuki UGAJIN , Koji YAMAGUCHI , Tetsuo YAMASHITA , Takashi IKEDA
CPC分类号： F04D17/04 , F04D29/324
摘要： An air sending device is provided with a cross flow fan including an impeller in which a plurality of blades is arranged annularly. Each of the blades includes a pressure surface, a suction surface, an inner peripheral end face, and an outer peripheral end face. The pressure surface of the blade satisfies the following relationship: a curvature of a second pressure-surface side curved surface>a curvature of a third pressure-surface side curved surface>a curvature of a first pressure-surface side curved surface. When a first, a second, and a third pressure-surface side area of a surface of part of a pressure surface side of the blade are projected on a chord line connecting the inner and outer peripheral end of the blade, a length of the third pressure-surface side area>a length of the first pressure-surface side area>a length of the second pressure-surface side area.
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公开(公告)号：US20230085125A1
公开(公告)日：2023-03-16
申请号：US17796004
申请日：2020-03-30
发明人： Koji YAMAGUCHI
摘要： An air-conditioning system includes an outdoor unit, a plurality of indoor units, and one or more refrigerant leak sensors. The outdoor unit is configured to exchange heat between outdoor air and refrigerant in a refrigerant circuit in which the refrigerant is circulated. The plurality of indoor units are each configured to exchange heat between the refrigerant and air inside a room in the refrigerant circuit and to perform air-conditioning inside the room. The one or more refrigerant leak sensors are each configured to detect a leak of the refrigerant from the refrigerant circuit. The one or more refrigerant leak sensors are each arranged separately from the outdoor unit and the plurality of indoor units.
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公开(公告)号：US20150121933A1
公开(公告)日：2015-05-07
申请号：US14512547
申请日：2014-10-13
发明人： Koji YAMAGUCHI , Tetsuo YAMASHITA , Masatomo HATTA , Minoru ISHII , Reiji MORIOKA , Tetsuya TAZAWA
摘要： An outdoor unit includes a housing having a bottom panel, an outdoor heat exchanger disposed inside the housing, a fan disposed inside the housing, a fan motor which is disposed inside the housing and drives the fan, a fan motor supporting plate disposed inside the housing more to the front than the outdoor heat exchanger and supports the fan motor, and a heater at least partially disposed on or around the fan motor supporting plate.
摘要翻译： 一种室外机，包括具有底板的壳体，设置在壳体内部的室外热交换器，设置在壳体内部的风扇，设置在壳体内并驱动风扇的风扇马达，设置在壳体内部的风扇马达支撑板 比室外热交换器更前方，并且支撑风扇电动机，以及至少部分地布置在风扇电动机支撑板上或周围的加热器。
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公开(公告)号：US20240077214A1
公开(公告)日：2024-03-07
申请号：US18261724
申请日：2021-03-19
发明人： Atsushi KONO , Takuya TERAMOTO , Yuki UGAJIN , Koji YAMAGUCHI , Tetsuo YAMASHITA , Takashi IKEDA
IPC分类号： F24F1/0018
CPC分类号： F24F1/0018
摘要： An indoor unit includes: a casing that has an air outlet and an air inlet, and inside which an air passage is formed; a cross flow fan disposed in the air passage and configured to blow out, through the air outlet, air sucked in from the air inlet; a stabilizer configured to stabilize vortex of air caused by circulation of air and generated inside the cross flow fan upon rotation thereof; and a guide wall having a surface defining an outlet side air passage being a part of the air passage, the part being in downstream of the cross flow fan, wherein the stabilizer has a first surface that defines a surface opposite to the guide wall in the outlet side air passage, and a part of the outlet side air passage is formed such that a distance in a vertical direction from the first surface to the guide wall gradually decreases toward the downstream.
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公开(公告)号：US20150121934A1
公开(公告)日：2015-05-07
申请号：US14513245
申请日：2014-10-14
发明人： Koji YAMAGUCHI , Tetsuo YAMASHITA , Masatomo HATTA , Minoru ISHII , Reiji MORIOKA , Tetsuya TAZAWA
摘要： An outdoor unit includes a housing having a front and side panel in which an opening is formed, a fan disposed in an air-sending device chamber formed inside the housing, an outdoor heat exchanger disposed in the air-sending device chamber, a bell mouth which is disposed in the air-sending device chamber and extends backwards from the periphery of the opening, and a heater which is disposed in the air-sending device chamber in which the bell mouth is disposed, and extends in the up and down direction.
摘要翻译： 室外单元包括具有形成有开口的正面和侧面的壳体，设置在形成于壳体内的送风装置室内的风扇，配置在送风装置室内的室外热交换器，喇叭口 其设置在送风装置室中并从开口的周边向后延伸;以及加热器，其布置在其中设置有喇叭口的送风装置室中，并沿上下方向延伸。
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公开(公告)号：US20240060674A1
公开(公告)日：2024-02-22
申请号：US18262031
申请日：2022-01-31
发明人： Shota HOSOMI , Koji YAMAGUCHI
IPC分类号： F24F11/74 , F24F1/0033 , F24F11/00
CPC分类号： F24F11/74 , F24F1/0033 , F24F11/0008 , F24F2110/10
摘要： An air conditioner includes an outdoor unit, and a plurality of indoor units connected with a refrigerant pipe through which a refrigerant sent from the outdoor unit flows. Each indoor unit includes a refrigerant circuit in which at least an indoor heat exchanger is connected to the refrigerant pipe, an operation controller configured to control the refrigerant circuit according to an operating state, a sensor configured to measure an indoor environment, and a plurality of indoor fans configured to blow air to the indoor heat exchanger. Further, during a dehumidifying operation, the operation controller is configured to control the plurality of indoor fans respectively at different rotation speeds based on a result of the measurement by the sensor.
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公开(公告)号：US20230332795A1
公开(公告)日：2023-10-19
申请号：US18245362
申请日：2021-02-05
发明人： Koji YAMAGUCHI
IPC分类号： F24F11/63
CPC分类号： F24F11/63
摘要： An air conditioner system in which an outdoor unit and a plurality of indoor units are connected via a communication line includes: a communication unit configured to communicate with an external device and one indoor unit of the plurality of indoor units; and a communication control unit configured to, as information for identifying each of the outdoor unit and the plurality of indoor units, associate first identification information uniquely set to each of the outdoor unit and the plurality of indoor units with second identification information uniquely set to the communication unit, and transmit the associated information from the one indoor unit to the external device via the communication unit.
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公开(公告)号：US20210285676A1
公开(公告)日：2021-09-16
申请号：US17256797
申请日：2018-09-14
发明人： Koji YAMAGUCHI
摘要： An air-conditioning system includes: an outdoor unit including an outdoor-side control device; indoor units each including an indoor-side control device controlling a device in response to an instruction; communication lines connecting the outdoor unit and the indoor units for communication between them; and a remote control unit including a remote-control controlling device and wirelessly communicating with each indoor unit. Each indoor unit includes an indoor-side setting device that determines an identification number identifying the indoor unit. When receiving, from the remote control unit, a signal including the instruction, the indoor-side control device determines whether or not to control the device based on an identification signal, and sends the signal to the outdoor unit via a communication line. The outdoor-side control device determines which indoor unit is an instruction target based on the identification signal and sends the signal to the instruction target indoor unit, via a communication line.
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