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1. 发明授权

US10670344B2 Heat exchanger, air-conditioning apparatus, refrigeration cycle apparatus and method for manufacturing heat exchanger 审中-公开
公开(公告)号：US10670344B2
公开(公告)日：2020-06-02
申请号：US14909478
申请日：2014-08-04
申请人： Mitsubishi Electric Corporation
发明人： Daisuke Ito , Akira Ishibashi , Takashi Okazaki , Shinya Higashiiue , Takuya Matsuda , Atsushi Mochizuki
IPC分类号： F28D1/053 , F24F13/30 , F28F1/02 , B23P15/26 , F28F1/22 , F28D1/02
摘要： A heat exchanger includes: a heat exchange unit group made up of a plurality of heat exchange units arranged in a row direction, the heat exchange units including a plurality of heat transfer tubes configured to allow refrigerant to pass therethrough, the heat transfer tubes being arrayed in a level direction, the level direction being perpendicular to the direction of air flow, and a plurality of fins stacked to allow air to pass therethrough in the air flow direction; and headers, disposed on both ends of the heat exchange unit group, the headers being connected with ends of the plurality of heat transfer tubes, the heat exchange unit group including one or more bend sections bent in the row direction, the headers including one header provided on one end of the heat exchange unit group in common for the plurality of rows of the heat exchange units, and a plurality of separate headers provided separately for the heat exchange units on the other end of the heat exchange unit group, the plurality of separate headers being arranged at positions different between adjacent rows, the positions being different in a fin-stacking direction in which the plurality of fins are stacked.

2. 发明授权

US10605498B2 Heat pump apparatus 有权
公开(公告)号：US10605498B2
公开(公告)日：2020-03-31
申请号：US15108664
申请日：2014-01-23
申请人： Mitsubishi Electric Corporation
发明人： Takashi Okazaki
IPC分类号： F25B13/00 , F25B7/00 , F25B25/00 , F25B40/00
摘要： A heat pump apparatus includes a heat source-side refrigeration cycle sequentially connecting a compressor, a heat source-side heat exchanger, an expansion valve, and a heat source side of a cascade heat exchanger, and configured to circulate refrigerant, and a load-side refrigeration cycle sequentially connecting a heat medium sending unit, a load-side heat exchanger, and a load side of the cascade heat exchanger, and configured to circulate a heat medium. The heat source-side heat exchanger and the cascade heat exchanger each have a hydraulic diameter of less than 1 mm, which is calculated by 4×S/L, where S represents a cross-sectional area of a fluid passage and L represents a length of a wetted perimeter.

3. 发明授权

US10288363B2 Laminated header, heat exchanger, and air-conditioning apparatus 有权
公开(公告)号：US10288363B2
公开(公告)日：2019-05-14
申请号：US14910308
申请日：2013-09-26
申请人： Mitsubishi Electric Corporation
发明人： Shigeyoshi Matsui , Shinya Higashiiue , Takashi Okazaki , Akira Ishibashi , Daisuke Ito , Atsushi Mochizuki
IPC分类号： F28F9/02 , F28F3/08 , F25B13/00 , F25B39/02 , F28D1/047 , F28F1/32 , F28D21/00
摘要： A laminated header according to the present invention includes: a first plate-like body having a plurality of first outlet flow passages formed therein; and a second plate-like body laminated on the first plate-like body, the second plate-like body having a distribution flow passage formed therein, the distribution flow passage being configured to distribute refrigerant, which passes through a first inlet flow passage to flow into the second plate-like body, to the plurality of first outlet flow passages to cause the refrigerant to flow out from the second plate-like body. A branching flow passage of the distribution flow passage includes: a branching portion; an inflow passage extending toward the branching portion; and a plurality of outflow passages extending from the branching portion in directions different from each other. Curvature radii of bending portions of the plurality of outflow passages are different from each other.

4. 发明申请

US20180320978A1 HEAT EXCHANGER AND METHOD FOR MANUFACTURING PLATE-SHAPED FINS FOR HEAT EXCHANGER 审中-公开
公开(公告)号：US20180320978A1
公开(公告)日：2018-11-08
申请号：US16026528
申请日：2018-07-03
申请人： Mitsubishi Electric Corporation
发明人： Shin Nakamura , Akira Ishibashi , Shinya Higashiiue , Daisuke Ito , Shigeyoshi Matsui , Yuki Ugajin , Takashi Okazaki , Atsushi Mochizuki
IPC分类号： F28D1/053 , F25B39/00 , F28F1/32 , B21D53/08
摘要： Plate-shaped fins of a heat exchanger each include, at circumferential portions thereof defining a notch in which a heat transfer tube having a flattened shape is disposed, fin collars formed by being raised from the circumferential portions. Each of the fin collars includes, in a position that faces a long axis side surface of the heat transfer tube, at least one reflare section bent in a direction opposite to the side surface. At least one of the reflare sections defining fin pitches between the adjoining plate-shaped fins is formed so that a reflare tip portion, which is a tip portion of the reflare section, is drawn apart from a contact side surface of the plate-shaped fin with which the reflare section comes into contact.

5. 发明授权

US10041664B2 Cooling apparatus, light source apparatus including cooling apparatus, and projection-type image display apparatus including light source apparatus 有权
公开(公告)号：US10041664B2
公开(公告)日：2018-08-07
申请号：US15309240
申请日：2014-06-06
申请人： Mitsubishi Electric Corporation
发明人： Daisuke Ito , Takashi Okazaki
IPC分类号： F21V29/503 , F21V29/52 , F25B1/00 , G03B21/14 , G03B21/16 , F21V29/90 , F25D21/00 , F25D21/08
摘要： A cooling apparatus includes: a refrigerant circuit in which a compressor, a condenser, an expansion valve and an evaporator are circularly connected sequentially, via a pipe, and a refrigerant circulates; and a heater provided to the refrigerant circuit, in which the evaporator is thermally connected to an exothermic element.

6. 发明申请

US20150168081A1 HEAT EXCHANGER 审中-公开
标题翻译：热交换器
公开(公告)号：US20150168081A1
公开(公告)日：2015-06-18
申请号：US14404152
申请日：2013-06-12
申请人： Mitsubishi Electric Corporation
发明人： Daisuke Ito , Takashi Okazaki
IPC分类号： F28F3/08
CPC分类号： F28F3/08 , F28D9/005 , F28F3/046 , F28F9/0273
摘要： A heat exchanger including: a channel forming section having a plurality of arrayed fluid channels; a distribution path forming section having a distribution path to which inlets of the plurality of arrayed fluid channels communicate; and a cylindrical partition wall provided in the distribution path forming section, for defining an introduction path on an inner side of the cylindrical partition wall, the distribution path being positioned on an outer side of an outer periphery of the cylindrical partition wall. The cylindrical partition wall has a plurality of distribution holes. The following expression is satisfied: L/d′×π(d/2)̂2>Σσ≧2S.
摘要翻译：一种热交换器，包括：具有多个排列的流体通道的通道形成部分; 分配路径形成部分，具有多个排列的流体通道的入口连通的分配路径; 以及设置在所述分配路径形成部中的圆柱形隔壁，用于在所述圆筒形分隔壁的内侧上限定引导路径，所述分配路径位于所述圆筒形分隔壁的外周的外侧。圆筒形分隔壁具有多个分配孔。满足以下表达式：L / d'×＆pgr;（d / 2）2>＆Sgr;＆sgr;≥S2。

7. 发明申请

US20150059401A1 HEAT EXCHANGER, REFRIGERATION CYCLE APPARATUS INCLUDING HEAT EXCHANGER AND AIR-CONDITIONING APPARATUS 有权
标题翻译：换热器，制冷循环装置，包括换热器和空调装置
公开(公告)号：US20150059401A1
公开(公告)日：2015-03-05
申请号：US14394864
申请日：2013-04-23
申请人： Mitsubishi Electric Corporation
发明人： Takuya Matsuda , Akira Ishibashi , Sangmu Lee , Takashi Okazaki
IPC分类号： F28D7/16 , F25B39/02 , F25B39/04 , F25B1/00
CPC分类号： F28D7/16 , F25B1/005 , F25B39/00 , F25B39/028 , F25B39/04 , F25B2339/02 , F25B2339/04 , F28D1/05391 , F28F1/022 , F28F9/0204
摘要： A heat exchanger includes a plurality of heat exchange units each including a plurality of fins arranged at intervals such that air passes between adjacent fins and a plurality of heat transfer tubes through which a refrigerant flows. The heat transfer tubes extend through the fins in a direction of arrangement of the fins. The heat transfer tubes are arranged at multiple levels in a level direction perpendicular to an air passing direction. The heat exchange units are arranged in multiple rows in a row direction, serving as the air passing direction. The heat exchanger further includes a row straddling header. Refrigerant passages are provided such that the refrigerant flowing from inlets of the refrigerant passages turns in the row straddling header to outlets of the refrigerant passages. The row straddling header has an interior separated into a plurality of chambers arranged in the level direction. The refrigerant passage is isolated for its corresponding chamber.
摘要翻译：一种热交换器包括多个热交换单元，每个热交换单元包括多个散热片，间隔布置，使得空气在相邻散热片之间通过，多个传热管通过制冷剂流过。传热管沿翼片的排列方向延伸穿过翅片。传热管在垂直于空气通过方向的水平方向上布置成多个水平。热交换单元沿行方向排列成多列，作为空气通过方向。热交换器还包括行跨接头。制冷剂通道设置成使得从制冷剂通道的入口流出的制冷剂在行跨接头处转向制冷剂通道的出口。行跨接头部具有分隔成沿水平方向布置的多个室的内部。制冷剂通道为其相应的室隔离。

8. 发明授权

US10393408B2 Air conditioner 有权
公开(公告)号：US10393408B2
公开(公告)日：2019-08-27
申请号：US15305152
申请日：2014-04-22
申请人： Mitsubishi Electric Corporation
发明人： Takashi Okazaki
IPC分类号： F25B6/02 , F25B5/02 , F24F11/89 , F24F1/18 , F25B13/00 , F25B41/04 , F25B40/00 , F25B47/02 , F24F13/20 , F25B39/02
摘要： The outdoor heat exchanger includes, on each of the three or more heat exchange sections, a liquid-side header pipe, a gas-side header pipe, and a plurality of heat exchange pipes, the three or more heat exchange sections are connected in parallel to one another, a plurality of the liquid-side header pipes are connected to a liquid-side collecting pipe through an intermediation of a branch section and at least one flow control section, each of the plurality of the liquid-side header pipes includes a perforated pipe, the refrigeration circuit further includes a bypass pipe for connecting a discharge side of the compressor and the liquid-side collecting pipe, and the bypass pipe includes an on-off valve to be closed during cooling and heating, and to be opened during defrosting.

9. 发明授权

US09791189B2 Heat exchanger and refrigeration cycle apparatus 有权
公开(公告)号：US09791189B2
公开(公告)日：2017-10-17
申请号：US14783250
申请日：2013-05-08
申请人： Mitsubishi Electric Corporation
发明人： Shigeyoshi Matsui , Takuya Matsuda , Keisuke Hokazono , Hiroki Okazawa , Takashi Okazaki , Akira Ishibashi , Atsushi Mochizuki
IPC分类号： F25B39/00 , F25B13/00 , F25B39/04 , F28D1/047 , F28F1/02 , F28F1/24 , F25B39/02 , F28D21/00
CPC分类号： F25B39/00 , F25B13/00 , F25B39/02 , F25B39/028 , F25B39/04 , F28D1/0476 , F28D2021/007 , F28F1/022 , F28F1/24
摘要： A heat exchanger is configured such that flat tubes in at least two levels bent or connected to each other at one end in an axial direction of the flat tubes and the flat tubes in at least two columns connected to each other are included in refrigerant passages through which refrigerant flows, and a flow direction of gas is counter to flow of refrigerant through the refrigerant passages in a column direction while the heat exchanger serves as a condenser.

10. 发明授权

US10571205B2 Stacking-type header, heat exchanger, and air-conditioning apparatus 有权
公开(公告)号：US10571205B2
公开(公告)日：2020-02-25
申请号：US15941412
申请日：2018-03-30
申请人： Mitsubishi Electric Corporation
发明人： Shinya Higashiiue , Takashi Okazaki , Akira Ishibashi , Daisuke Ito , Takuya Matsuda , Shigeyoshi Matsui , Atsushi Mochizuki
IPC分类号： F28F9/02 , F28D1/047 , F28D1/053 , F25B39/00 , F28D21/00
摘要： A stacking-type header according to the present invention includes: a first plate-shaped unit; and a second plate-shaped unit stacked on the first plate-shaped unit, and having a distribution flow passage, in which the distribution flow passage includes a branching flow passage including: a first flow passage; and a second flow passage, and in which the branching flow passage is smaller in difference in flow resistance between the first flow passage and the second flow passage than a branching flow passage in a state in which a flow-passage resistance in the first flow passage and a flow-passage resistance in the second flow passage are equal to each other, and in a state in which the first flow passage and the second flow passage are point symmetric with each other about the opening port.

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