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1. 发明申请

US20160377332A1 REFRIGERANT CHANNEL SWITCHING UNIT 有权
标题翻译：制冷通道切换单元
公开(公告)号：US20160377332A1
公开(公告)日：2016-12-29
申请号：US15103257
申请日：2014-12-03
申请人： DAIKIN INDUSTRIES, LTD.
发明人： Akihiro EGUCHI , Shigeki KAMITANI
IPC分类号： F25B41/04 , F25B49/02 , F25B13/00
CPC分类号： F25B41/046 , F25B13/00 , F25B41/04 , F25B49/02 , F25B2313/007 , F25B2313/0231 , F25B2313/0253 , F25B2313/027 , F25B2313/029 , F25B2313/0292 , F25B2400/13 , F25B2500/01 , F25B2600/25
摘要： A refrigerant channel switching unit is disposed between a heat source unit and a utilization unit to switch flow of refrigerant in the refrigerant circuit. The refrigerant channel switching unit includes a first refrigerant pipe connected to a suction gas communicating pipe extending from the heat source unit, a second refrigerant pipe connected to a high-low pressure gas communicating pipe extending from the heat source unit, a third refrigerant pipe connected to a gas pipe extending to the utilization unit, a coupling portion, a first switch valve mounted to the first refrigerant pipe, and a second switch valve mounted to the second refrigerant pipe. The coupling portion is connected to the first, second and third refrigerant pipes. The first second and third are coupled through the coupling portion.
摘要翻译：制冷剂流路切换单元设置在热源单元和利用单元之间，以切换制冷剂回路中的制冷剂流。制冷剂流路切换单元包括与从热源单元延伸的吸气连通管连接的第一制冷剂配管，与从热源单元延伸的高低压气体连通配管连接的第二制冷剂配管，连接有第三制冷剂配管延伸到利用单元的气体管道，联接部分，安装到第一制冷剂管道的第一开关阀和安装到第二制冷剂管道的第二开关阀。联接部分连接到第一，第二和第三制冷剂管道。第一和第三通过联接部分联接。

2. 发明申请

US20180080692A1 REFRIGERATION APPARATUS 审中-公开
公开(公告)号：US20180080692A1
公开(公告)日：2018-03-22
申请号：US15561580
申请日：2016-03-28
申请人： DAIKIN INDUSTRIES, LTD.
发明人： Masahiro HONDA , Shigeki KAMITANI
IPC分类号： F25B41/04 , F25B13/00 , F25B49/02
CPC分类号： F25B41/04 , F25B13/00 , F25B49/02 , F25B49/022 , F25B2400/13 , F25B2500/19 , F25B2500/222 , F25B2600/2501 , F25B2700/13 , F25B2700/1933 , F25B2700/195 , F25B2700/21163 , G01F1/36 , G01F1/363 , Y10T137/0368 , Y10T137/0452 , Y10T137/7759
摘要： A refrigeration apparatus includes a primary circuit with a first expansion valve, a bypass circuit extending between branching and joining portions on the refrigerant primary circuit, a heat exchanger, a second expansion valve disposed upstream of the heat exchanger in the bypass circuit, first and second refrigerant flow rate calculating components, and a determining component. The primary circuit also includes a compressor, radiator, and evaporator. The heat exchanger includes first and second refrigerant flow paths disposed on the primary and bypass circuits, respectively, to cause heat between refrigerant flowing in the paths. The first and second refrigerant flow rate calculating components calculate first and second flow rates of refrigerant flowing through the bypass circuit based on refrigeration cycle theory and fluid theory, respectively. The determining component determines whether there is refrigerant leakage or refrigerant charge deficiency based on comparison of the first and second refrigerant flow rates.

3. 发明申请

US20200158354A1 OUTDOOR UNIT FOR REFRIGERATION APPARATUS 审中-公开
公开(公告)号：US20200158354A1
公开(公告)日：2020-05-21
申请号：US16626622
申请日：2018-08-06
申请人： Daikin Industries, LTD.
发明人： Miho KUROKAWA , Shigeki KAMITANI , Taichi KOSHIJI
IPC分类号： F24F1/22 , F24F13/20
摘要： An outdoor unit for a refrigeration apparatus includes: a casing that houses a plurality of devices including a first device and a second device; a plurality of electric components including a first electric component and a second electric component; an electric component box disposed in the casing and that houses the plurality of electric components; a first wire that carries a first voltage or current between the first electric component and the first device; a second wire that carries a second voltage or current between the second electric component and the second device; and a cover part that suppresses entry of liquid into the electric component box. The second voltage or current is lower than the first voltage or current.

4. 发明申请

US20190338985A1 HEAT SOURCE UNIT 审中-公开
公开(公告)号：US20190338985A1
公开(公告)日：2019-11-07
申请号：US16332149
申请日：2017-07-24
申请人： DAIKIN INDUSTRIES, LTD.
发明人： Fumiaki KOIKE , Shigeki KAMITANI , Takuya HORITA , Daiki HIRAWA , Yuusuke TANAKA , Taichi KOSHIJI
IPC分类号： F24F13/20 , F24F1/10 , F24F1/22 , F24F1/50 , F24F1/56 , F24F1/16
摘要： A bottom frame (50) which constitutes a bottom surface of a casing (40) is divided into a main bottom frame (51) where a first compressor (11) is to be provided and a sub bottom frame (55) where a second compressor (21) is to be provided. The main bottom frame (51) is further divided into a first bottom frame (52) and a second bottom frame (53). The first compressor (11) is to be provided on the first bottom frame (52). A refrigerant circuit component (47) to be replaced or added in accordance with a capability or a function is to be provided on the second bottom frame (53).

5. 发明申请

US20160356516A1 AGGREGATED CHANNEL SWITCHING UNIT AND METHOD OF MANUFACTURING SAME 有权
标题翻译：集成通道切换单元及其制造方法
公开(公告)号：US20160356516A1
公开(公告)日：2016-12-08
申请号：US15103241
申请日：2014-12-03
申请人： DAIKIN INDUSTRIES, LTD.
发明人： Akihiro EGUCHI , Shigeki KAMITANI
IPC分类号： F24F11/00 , F24F5/00 , F24F3/06 , F25B40/02 , F25B13/00 , F24F1/32 , F25B43/00
CPC分类号： F24F11/83 , F24F1/32 , F24F3/065 , F24F5/001 , F24F11/84 , F25B13/00 , F25B40/02 , F25B43/003 , F25B2313/007 , F25B2313/0231 , F25B2313/0233 , F25B2313/0253 , F25B2313/027 , F25B2400/05 , F25B2400/13
摘要： An aggregated channel switching unit is disposed between a heat source unit and a plurality of utilization units to switch flow of refrigerant in the refrigerant circuit. The aggregated channel switching unit including a plurality of first refrigerant pipes having switch valves, a plurality of second refrigerant pipes, and a casing accommodating the first and second pipes. The first and second pipes are aggregated as an assembly. The first pipes are connected to a high-low pressure gas communicating pipe and a suction gas communicating pipe extending from the heat source unit. The second refrigerant pipes are connected to a liquid communicating pipe extending from the heat source unit and a liquid pipe extending to the utilization units. Adjacent pairs of the first and second pipes extend approximately in parallel to each other at predetermined intervals in the assembly. The first and second pipes are alternately disposed in the assembly.
摘要翻译：聚集通道切换单元设置在热源单元和多个利用单元之间，以切换制冷剂回路中的制冷剂流。聚集通道切换单元包括具有开关阀的多个第一制冷剂管道，多个第二制冷剂管道和容纳第一和第二管道的壳体。第一和第二管道作为组件聚集。第一管连接到高压气体连通管和从热源单元延伸的吸气连通管。第二制冷剂管连接到从热源单元延伸的液体连通管和延伸到利用单元的液体管。第一和第二管道的相邻对在组件中以预定的间隔彼此大致平行地延伸。第一和第二管交替地设置在组件中。

6. 发明申请

US20210207894A1 OUTDOOR UNIT FOR REFRIGERATION APPARATUS 有权
公开(公告)号：US20210207894A1
公开(公告)日：2021-07-08
申请号：US16626610
申请日：2018-08-06
申请人： Daikin Industries, LTD.
发明人： Miho KUROKAWA , Shigeki KAMITANI , Taichi KOSHIJI , Shougo OHTA , Hirotaka DOI
IPC分类号： F28D15/02 , H01L23/427
摘要： An outdoor unit for a refrigeration apparatus includes: a fan that provides an air flow; a casing that houses the fan and that includes a blow-out port through which the air flow is blown; a first heat generating component that generates heat when being energized; a first board on which the first heat generating component is mounted; an electric component box that houses the first board; and a first cooler that cools the first heat generating component and that includes: a heat pipe in which a coolant is sealed and that is thermally connected to the first heat generating component; first heat radiating fins on a flow path of the air flow and that exchange heat with the air flow; and a main body interposed between the heat pipe and the first heat radiating fins to thermally connect the heat pipe to the first heat radiating fins.

7. 发明申请

US20200182491A1 OUTDOOR UNIT FOR REFRIGERATION APPARATUS 审中-公开
公开(公告)号：US20200182491A1
公开(公告)日：2020-06-11
申请号：US16625925
申请日：2018-08-06
申请人： Daikin Industries, LTD.
发明人： Miho KUROKAWA , Shigeki KAMITANI , Taichi KOSHIJI
IPC分类号： F24F1/24 , F24F1/22 , F24F1/50
摘要： Provided is an outdoor unit for a refrigeration apparatus, the outdoor unit being capable of suppressing decrease in reliability. An outdoor unit (10) includes: a compressor (12); an outdoor fan (18) configured to provide outdoor air flows (AF), the outdoor fan (18) being higher in heightwise position than the compressor (12); a high-heat generating electric component (65) configured to control the compressor (12); a fan controlling electric component (66) configured to control the outdoor fan (18); a board unit (75) including a compressor controlling electric component mount portion (75a) and a fan controlling electric component mount portion (75b); a first cooling unit (80); and an outdoor unit casing (40). The outdoor air flows (AF) flow from below upward in the outdoor unit casing (40), and flow out of the outdoor unit casing (40) through a blow-out port (402). The first cooling unit (80) includes a plurality of first cooling unit fins (81) located on flow paths of the outdoor air flows (AF), the first cooling unit fins (81) being adjacent to the compressor controlling electric component mount portion (75a). The high-heat generating electric component (65) is lower in heightwise position than the outdoor fan (18) and higher in heightwise position than the fan controlling electric component (66).

8. 发明申请

US20180283719A1 AIR CONDITIONING INDOOR UNIT 审中-公开
公开(公告)号：US20180283719A1
公开(公告)日：2018-10-04
申请号：US15562402
申请日：2016-03-30
申请人： DAIKIN INDUSTRIES, LTD.
发明人： Masahiro HONDA , Shigeki KAMITANI
IPC分类号： F24F11/36 , F25B49/02
摘要： An indoor fan, an indoor heat exchanger, and refrigerant piping are housed in a casing having an air inlet and air outlets. An air conditioning indoor unit includes a first temperature sensor that measures a temperature of air in an air conditioning target space, a second temperature sensor that measures a temperature of the refrigerant piping, and a determining component that determines if there is refrigerant leakage while operation is stopped. The determining component performs a refrigerant leakage determination that is a determination whether there is refrigerant leakage based on a difference between the temperatures detected by the first temperature sensor and the second temperature sensor.

9. 发明申请

US20200149752A1 OUTDOOR UNIT OF REFRIGERATION APPARATUS 审中-公开
公开(公告)号：US20200149752A1
公开(公告)日：2020-05-14
申请号：US16627413
申请日：2018-07-24
申请人： Daikin Industries, LTD.
发明人： Daiki HIRAWA , Fumiaki KOIKE , Shigeki KAMITANI
IPC分类号： F24F1/56 , F24F1/22 , F24F1/38
摘要： An outdoor unit of a refrigeration apparatus includes: a fan that generates an upward flow of air passing through a heat exchanger; an electric component box that accommodates a group of electric components; and a casing that includes a panel disposed at a predetermined position opposite to the electric component box. The panel is divided into at least a first panel and a second panel in a lateral direction as viewed from a front view of the panel. The first panel is opposed to at least part of the electric component box. The first panel is detachable from the casing while the second panel remains attached to the casing.

10. 发明申请

US20180372379A1 AIR CONDITIONER 审中-公开
公开(公告)号：US20180372379A1
公开(公告)日：2018-12-27
申请号：US15737033
申请日：2016-06-15
申请人： DAIKIN INDUSTRIES, LTD.
发明人： Shigeki KAMITANI , Masahiro HONDA
IPC分类号： F25B1/00
摘要： An air conditioner includes a liquid pressure adjusting expansion valve that is located in an outdoor liquid refrigerant pipe at a part thereof closer to a liquid refrigerant communication pipe than to a refrigerant cooler and configured to reduce a pressure of a refrigerant so that a refrigerant flows through the liquid refrigerant communication pipe in a gas-liquid two-phase state and so that the refrigerant flows through an outlet of a refrigerant cooler in a liquid state.

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