公开(公告)号：US20170205160A1

公开(公告)日：2017-07-20

申请号：US15385342

申请日：2016-12-20

Applicant: UACJ Corporation

Inventor： Yutaka YANAGAWA ,  Norihisa ISOMURA ,  Yuki TOTANI ,  Yasuhiro YAGITA ,  Tetsuro HATA

IPC: F28F21/08 ,  F28F3/06

CPC classification number: F28F21/084 ,  B23K1/0012 ,  B23K1/008 ,  B23K1/19 ,  B23K1/203 ,  B23K35/002 ,  B23K35/0222 ,  B23K35/0233 ,  B23K35/0238 ,  B23K35/0244 ,  B23K35/025 ,  B23K35/286 ,  B23K35/288 ,  B23K35/36 ,  B23K35/3603 ,  B23K35/3605 ,  B23K35/383 ,  B23K2101/14 ,  B32B15/016 ,  F28F3/06 ,  F28F21/089 ,  F28F2275/04

Abstract: A method for manufacturing a heat exchanger (1) includes joining an inner fin (3) to a hollow structure (20) formed from at least two clad plates (200a, 200b) by heating and brazing a filler metal layer (B). Each clad plate has a core layer (A) composed of an aluminum alloy that contains Mg: 0.40-1.0 mass %. The filler metal layer is composed of an aluminum alloy that contains Si: 4.0-13.0 mass %, and further contains Li: 0.0040-0.10 mass %, Be: 0.0040-0.10 mass %, and/or Bi: 0.01-0.30 mass %. The inner fin is composed of an aluminum alloy that contains Si: 0.30-0.70 mass % and Mg: 0.35-0.80 mass %. A flux (F) that contains cesium (Cs) is applied along a contact part (201), and the vicinity thereof, of the at least two clad plates prior to the heating. A heat exchanger (1) may be manufactured according to this method.

公开(公告)号：US20200370847A1

公开(公告)日：2020-11-26

申请号：US16988903

申请日：2020-08-10

Applicant: UACJ Corporation

Inventor： Yutaka YANAGAWA ,  Norihisa ISOMURA ,  Yuki TOTANI ,  Yasuhiro YAGITA ,  Tetsuro HATA

IPC: F28F21/08 ,  B23K35/36 ,  B32B15/01 ,  B23K35/00 ,  B23K35/02 ,  B23K1/19 ,  B23K1/00 ,  B23K1/20 ,  B23K35/28 ,  B23K1/008 ,  B23K35/38 ,  F28F3/06

Abstract: A method for manufacturing a heat exchanger (1) includes joining an inner fin (3) to a hollow structure (20) formed from at least two clad plates (200a, 200b) by heating and brazing a filler metal layer (B). Each clad plate has a core layer (A) composed of an aluminum alloy that contains Mg: 0.40-1.0 mass %. The filler metal layer is composed of an aluminum alloy that contains Si: 4.0-13.0 mass %, and further contains Li: 0.0040-0.10 mass %, Be: 0.0040-0.10 mass %, and/or Bi: 0.01-0.30 mass %. The inner fin is composed of an aluminum alloy that contains Si: 0.30-0.70 mass % and Mg: 0.35-0.80 mass %. A flux (F) that contains cesium (Cs) is applied along a contact part (201), and the vicinity thereof, of the at least two clad plates prior to the heating. A heat exchanger (1) may be manufactured according to this method.

公开(公告)号：US20170215302A1

公开(公告)日：2017-07-27

申请号：US15395103

申请日：2016-12-30

Applicant: UACJ Corporation

Inventor： Yuki TOTANI ,  Tetsuro HATA ,  Yasuhiro YAGITA ,  Kazuyoshi SHOUTSUBO

IPC: H05K7/20

CPC classification number: H05K7/20509 ,  F28F3/06 ,  F28F3/12 ,  F28F2275/14 ,  H01L23/467 ,  H01L23/473 ,  H05K7/20154

Abstract: A heat-exchanger heat sink (1; 102; 103; 104) includes a plurality of fin plates (2; 202; 203; 203a, 203b; 205), which are lined up spaced apart from one another in a plate-thickness direction; and at least one linking part (3; 3a, 3b; 304), which is disposed such that it intersects and hold the plurality of fin plates (2). The at least one linking part has a base (31), which may be rod or bar shaped, and a plurality of positioning protrusions (32), which protrude from a side surface of the base. Each of the fin plates has at least one latching groove (21, 26), into which the base is inserted such that each fin plate is located between adjacent positioning protrusions of the at least one linking part.

公开(公告)号：US20230003456A1

公开(公告)日：2023-01-05

申请号：US17757109

申请日：2020-12-08

Applicant: UACJ Corporation

Inventor： Shiro KATAHIRA ,  Tetsuro HATA ,  Takuro NAKAMURA

IPC: F28D7/10 ,  F28F1/42

Abstract: A double pipe for a heat exchanger includes an inner pipe disposed in an outer pipe. In a straight-pipe portion of the double pipe, the inner pipe has a plurality of protruding parts extending in a helically offset manner along a longitudinal direction, an inner-circumferential surface of the outer pipe directly contacts the protruding parts, and outer-side channels are partitioned at a plurality of locations in a circumferential direction of the double pipe. The protruding parts are curved to protrude radially outward. In a cross section of the straight-pipe portion orthogonal to the longitudinal direction, the inner-circumferential surface of the outer pipe is circular, and an average value of D/L values of all the outer-side channels is 0.09-0.20, wherein D is defined as a maximum depth of each of the outer-side channels and L is defined as an arc length of each of the outer-side channels in the circumferential direction.

公开(公告)号：US20210358834A1

公开(公告)日：2021-11-18

申请号：US17427275

申请日：2020-02-06

Applicant: UACJ Corporation

Inventor： Yoshiharu SAKAI ,  Tetsuro HATA ,  Gaku TORIKAI

IPC: H01L23/473

Abstract: A coolant passageway (2) of a heat sink (1) has a coolant lead-in part (21), a coolant lead-out part (22), coolant-contact parts (23), coolant-transit parts (25), and connecting parts (24). The coolant-contact parts (23) are disposed spaced apart from one another along a coolant path leading from the coolant lead-in part (21) to the coolant lead-out part (22) and are configured such that they bring the coolant into contact with a cooling-wall part. The coolant-transit parts (25) are disposed between adjacent coolant-contact parts (23) and are configured such that the coolant can transit from upstream-side coolant-contact parts (23) to downstream-side coolant-contact parts (23) in the coolant paths. The connecting parts (24) are interposed between the coolant-transit parts (25) and the coolant-contact parts (23) and have a passageway cross-sectional area that is smaller than those of the coolant-contact parts (23) and the coolant-transit parts (25).