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1. 发明公开

EP3598052A1 HEAT EXCHANGER HAVING HEAT TRANSFER TUBE UNIT 审中-公开
公开(公告)号：EP3598052A1
公开(公告)日：2020-01-22
申请号：EP18767788.5
申请日：2018-03-12
申请人： Daikin Industries, Ltd.
发明人： KUSAKA, Hideyuki , NAKANO, Hiroyuki , ANDOU, Tooru , YOSHIOKA, Shun
IPC分类号： F28F1/00 , F28D7/16 , F28F1/32 , F28F9/02
摘要： A heat exchanger (10) includes a heat-transfer-tube unit (30) and a header (21, 22). The heat-transfer-tube unit (30) includes at least one fin (32) and a plurality of heat transfer tubes (31). The heat-transfer-tube unit (30) is connected to the header (21, 22). The fin (32) and the heat transfer tubes (31) are arranged alternately side by side. The plurality of heat transfer tubes (31) each extend in a heat-transfer-tube-extending direction (z). The fin (32) has sides extending in the heat-transfer-tube-extending direction (z) and that are joined to the heat transfer tubes (31). An end (32e) of the fin (32) is positioned nearer to a center of the heat-transfer-tube unit (30) in the heat-transfer-tube-extending direction (z) than ends (31e) of the heat transfer tubes (31). The header (21, 22) has holes (24) for insertion of the ends of the heat transfer tubes (31).

2. 发明公开

EP3594576A1 REFRIGERATION DEVICE 无效转让
公开(公告)号：EP3594576A1
公开(公告)日：2020-01-15
申请号：EP18764010.7
申请日：2018-02-14
申请人： Daikin Industries, Ltd.
发明人： KUBO, Hiroharu , NAKANO, Hiroyuki , SASAI, Yasuhiro
IPC分类号： F24F1/16 , F24F13/30 , F28D1/053 , F28F9/00
摘要： An air conditioner (100) includes a unit casing (40), an outdoor heat exchanger (15) housed in the unit casing (40), and a plate member (80). The unit casing (40) forms therein a fan chamber (SP1) and a machine chamber (SP2). The outdoor heat exchanger (15) includes a plurality of heat transfer tubes (60) through which a refrigerant flows, a heat exchange portion (50) that is disposed in the fan chamber (SP1) and that causes the refrigerant and an outdoor air flow (AF) to exchange heat, and a header collecting tube (70) connected to the heat transfer tubes (60) and disposed in the machine chamber (SP2). The header collecting tube (70) includes a header body portion (75). The plate member (80) has a front surface (811) that shields the machine chamber (SP2) from the outdoor air flow (AF). The plate member (80) is fixed to the header collecting tube (70), and fixed to the unit casing (40) or a partition plate (46) disposed in the unit casing (40).

3. 发明公开

EP4407242A1 INDOOR UNIT AND AIR CONDITIONER 审中-实审
公开(公告)号：EP4407242A1
公开(公告)日：2024-07-31
申请号：EP22875436.2
申请日：2022-04-21
申请人： Daikin Industries, Ltd.
发明人： NAKANO, Hiroyuki , AGO, Shota
IPC分类号： F24F1/0068
CPC分类号： F24F1/0059 , F24F1/0326 , F24F1/0068 , F24F13/20 , F24F1/032
摘要： An indoor unit (1) includes a casing (21), a heat exchanger (15) accommodated in the casing (21), and a connection pipe (31) connected to the heat exchanger (15) and through which a refrigerant flows. The connection pipe (31) includes a first refrigerant pipe (311) having one end connected to the heat exchanger (15), the first refrigerant pipe (311) being formed of a first metal, and a second refrigerant pipe (312) formed of a second metal that is higher in potential than the first metal of the first refrigerant pipe (311). The second refrigerant pipe (312) has one end connected to the other end of the first refrigerant pipe (311) in the casing (21). This makes it possible to prevent a refrigerant pipe from suffering electrolytic corrosion.

4. 发明公开

EP3760957A1 HEAT EXCHANGER 有权
公开(公告)号：EP3760957A1
公开(公告)日：2021-01-06
申请号：EP19761287.2
申请日：2019-02-22
申请人： DAIKIN INDUSTRIES, LTD.
发明人： NAKANO, Hiroyuki , ANDOU, Tooru , KUSAKA, Hideyuki , YOSHIOKA, Shun
IPC分类号： F28D1/053 , F28F1/16 , F28F3/12 , F28F9/02
摘要： A heat exchanger (10) includes heat transfer units (30) in each of which a plurality of heat transfer channel portions (31) and a plurality of auxiliary heat transfer portions (32), each of which extends in a first direction (D1), are formed so as to be arranged in a second direction (D2) that is diagonal or perpendicular to the first direction (D1). Here, the heat transfer units (30) are arranged in a third direction (D3) that is different from either of the first direction (D1) and the second direction (D2), and form a heat transfer unit group (15). In the heat exchanger (10), the heat transfer units (30) are each partitioned into an airflow-upstream region (WU) and an airflow-downstream region (WL) in the second direction (D2). When used as an evaporator, the heat exchanger (10) causes a refrigerant (F) to flow into a heat transfer channel portion (31U) disposed in the airflow-upstream region (WU), and then causes the refrigerant (F) to flow out to a heat transfer channel portion (31L) disposed in the airflow-downstream region (WL).

5. 发明公开

EP4053473A1 HEAT EXCHANGER, INDOOR UNIT FOR AIR-CONDITIONER, AND REFRIGERATION DEVICE 有权转让
公开(公告)号：EP4053473A1
公开(公告)日：2022-09-07
申请号：EP20897944.3
申请日：2020-09-07
申请人： Daikin Industries, Ltd.
发明人： NAKANO, Hiroyuki , AGOU, Shouta , SASAI, Yasuhiro
IPC分类号： F25B39/00 , F25B39/02 , F25B39/04 , F28F21/08 , F28F19/06 , F24F11/89 , F24F140/20 , F24F13/20 , F24F1/0067 , F24F1/22
摘要： A heat exchanger (10) includes a pipe (30) that is made of aluminum and into which a refrigerant flows, a thermistor (12) that detects a temperature of the refrigerant, and an attaching portion (13) with which the thermistor (12) is attached to the pipe (30). A heat transfer tube (11) includes a sacrificial layer (14) that is provided on a part of a surface of the heat transfer tube (11). The sacrificial layer (14) is lower in potential than aluminum of which the pipe (30) is made. The attaching portion (13) is higher in potential than the sacrificial layer (14) . at least one part of the attaching portion is attached to a surface of the pipe (30) where the sacrificial layer (14) is not provided.

6. 发明公开

EP3760960A1 HEAT EXCHANGER 有权转让
公开(公告)号：EP3760960A1
公开(公告)日：2021-01-06
申请号：EP19760319.4
申请日：2019-02-22
申请人： DAIKIN INDUSTRIES, LTD.
发明人： ANDOU, Tooru , NAKANO, Hiroyuki , YOSHIOKA, Shun
IPC分类号： F28F1/16 , F28D1/053 , F28F1/02 , F28F3/12
摘要： A heat exchanger (10) includes a heat transfer unit (30) in which a heat transfer channel portion (31) and auxiliary heat transfer portions (32), each of which extends in a first direction (D1), are formed so as to be arranged in a second direction (D2) that is diagonal or perpendicular to the first direction (D1). In the heat transfer unit (30), a first auxiliary heat transfer portion (32g) is formed at an end portion in the second direction (D2). Here, a first length (S) of the first auxiliary heat transfer portion (32g) to a heat transfer channel portion (31g) that is adjacent in the second direction is larger than a distance (PP) between heat transfer channel portions (31) that are adjacent to each other in the second direction (D2) in a case where a plurality of heat transfer channel portions (31) exist in the heat transfer unit (30). Alternatively, the first length (S) is larger than a distance (FP) between heat transfer units (30) that are adjacent to each other in a third direction (D3) that is different from either of the first direction (D1) and the second direction (D2) in a case where a plurality of the heat transfer units (30) are arranged in the third direction (30).

7. 发明公开

EP4411288A1 AIR CONDITIONER 审中-实审
公开(公告)号：EP4411288A1
公开(公告)日：2024-08-07
申请号：EP22875456.0
申请日：2022-05-31
申请人： Daikin Industries, Ltd.
发明人： SHODA, Honami , ONUMA, Yoichi , NAKANO, Hiroyuki
IPC分类号： F25B47/00 , F28F19/00 , F25B41/40
CPC分类号： F25B47/00 , F28F19/00 , F25B41/40
摘要： An air conditioner includes a first metal pipe 26a, 26b, a second metal pipe 19a with a higher electric potential than the first metal pipe, and a first component 12 made of stainless steel and including a first connecting part 12a, 12b and a second connecting part 12c. The first metal pipe 26a, 26b is connected to the first connecting part 12a, 12b of the first component 12 and the second metal pipe 19a is connected to the second connecting part 12c of the first component 12, so that a refrigerant passage is formed from the first metal pipe 26a, 26b to the second metal pipe 19a through the first component 12. The first component 12 is one of a filter a muffler, a decompression device, a refrigerant storage, and a diverter. With this arrangement, the number of components of the air conditioner is reduced.

8. 发明公开

EP4411285A1 AIR CONDITIONER 审中-实审
公开(公告)号：EP4411285A1
公开(公告)日：2024-08-07
申请号：EP22875448.7
申请日：2022-05-23
申请人： Daikin Industries, Ltd.
发明人： NAKANO, Hiroyuki , AGO, Shota
IPC分类号： F25B39/00 , F25B47/00 , F28F19/06 , F24F1/0067 , F24F1/0325 , F24F1/14
CPC分类号： F25B47/00 , F24F1/0325 , F24F1/0067 , F25B39/00 , F24F1/14 , F28F19/06 , F28F21/084 , F28F17/005 , F28F19/04 , F28F1/06 , F28D1/0477 , F28F2245/0220130101 , F28F2245/0420130101 , F28F19/004
摘要： An air conditioner 1 is disclosed as an air conditioner configured to condition air by connecting an indoor unit 2 including a first heat exchanger 11 in which a refrigerant exchanging heat with room air flows to an outdoor unit 3 including a second heat exchanger 24 in which a refrigerant exchanging heat with outdoor air flows. The first heat exchanger 11 includes a first heat transfer tube 11a1 made of aluminum or aluminum alloy, and the second heat exchanger 24 includes a second heat transfer tube 24a made of aluminum or aluminum alloy. A first sacrificial layer 45a is formed on an outer circumferential surface of the first heat transfer tube 11a1, and a second sacrificial layer 35 is formed on an outer circumferential surface of the second heat transfer tube 24a. The maximum thickness to of the second sacrificial layer 35 is larger than the sacrificial layer ti1 of the first sacrificial layer 45a. This suppresses corrosion of the heat transfer tube of the outdoor unit.

9. 发明公开

EP4403843A1 HEAT EXCHANGE UNIT AND AIR CONDITIONER 审中-实审
公开(公告)号：EP4403843A1
公开(公告)日：2024-07-24
申请号：EP22875433.9
申请日：2022-04-21
申请人： Daikin Industries, Ltd.
发明人： NAKANO, Hiroyuki , AGO, Shota , YAMAMOTO, Atsushi
IPC分类号： F24F13/20 , F24F1/0059 , F24F1/0067 , F24F1/0068
CPC分类号： F24F1/0059 , F24F1/0067 , F24F1/0068 , F24F13/20
摘要： A connection pipe (31) of a heat exchange unit (1) includes a second refrigerant pipe (312) formed of a second metal that is higher in potential than a first metal of a first refrigerant pipe. The second refrigerant pipe (312) includes a first section (312a) that is bent to protrude upward. The first section (312a) includes a first curved section (312a-1) disposed on a first-refrigerant-pipe (311)-side relative to an apex (P) of the first section (312a), and a second curved section (312a-2) disposed on a side opposite to the first-refrigerant-pipe (311)-side relative to the apex (P) of the first section (312a). A covering member (51) or a coating film is provided in intimate contact with the second refrigerant pipe (312) to cover a first-refrigerant-pipe (311)-side edge of the second refrigerant pipe (312) and the first curved section (312a-1).

10. 发明公开

EP4397934A1 HEAT EXCHANGER AND AIR-CONDITIONING DEVICE 审中-实审
公开(公告)号：EP4397934A1
公开(公告)日：2024-07-10
申请号：EP22875723.3
申请日：2022-09-05
申请人： DAIKIN INDUSTRIES, LTD.
发明人： NAKANO, Hiroyuki , YAMAMOTO, Atsushi
IPC分类号： F28F9/26 , F24F1/0067 , F25B39/00 , F28D1/047 , F28F21/08
CPC分类号： F28D1/047 , F24F1/18 , F24F1/0067 , F25B39/00 , F28F9/18 , F28F21/08 , F28F9/26 , F28F9/0275 , F28D1/0477 , F28F1/006 , F28F2275/0420130101 , F28F21/084 , F28F1/32 , B60H1/00328 , B60H1/00521
摘要： A support plate (48) is provided at an end of a fin group (47). End portions of a plurality of heat transfer tubes (50) form protrusions (51) protruding from the support plate (48). The protrusions (51) include a first protrusion (51a) and a second protrusion (51b). The first protrusion (51a) is connected to the protrusion (51) positioned adjacent to the first protrusion (51a). The second protrusion (5 1b) is connected to a flow path pipe different from the protrusion (51) positioned adjacent to the second protrusion (51b). A distance from the tip end of the second protrusion (51b) to the support plate (48) is shorter than a distance from the tip end of the first protrusion (51a) to the support plate (48).

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