公开(公告)号：US20200096264A1

公开(公告)日：2020-03-26

申请号：US16696767

申请日：2019-11-26

Applicant: DENSO CORPORATION

Inventor： Keita MORIMOTO ,  Tomohiko NAKAMURA ,  Mitsuyoshi SAITO ,  Masahiro SHIMOYA ,  Tatsuhiko NISHINO ,  Shota CHATANI ,  Toshiya NAGASAWA

IPC: F28F17/00 ,  F28F1/12

Abstract: A heat exchanger includes tubes arranged in one direction, and a corrugated fin provided between the tubes. The corrugated fin includes joints joined to the tubes, and fin bodies that connect the joints which are located next to each other along the wave shape. The fin body includes a cut-raised portion that has a shape in which a part of the fin body is cut and raised for promotion of heat transfer. The cut-raised portion includes a cut-raised end on at least one end of the cut-raised portion in the one direction. The cut-raised end has recesses and projections on its surface that increase hydrophilicity of the surface of the cut-raised end.

公开(公告)号：US20200096226A1

公开(公告)日：2020-03-26

申请号：US16696855

申请日：2019-11-26

Applicant: DENSO CORPORATION

Inventor： Keita MORIMOTO ,  Tomohiko NAKAMURA ,  Tatsuhiko NISHINO ,  Toshiya NAGASAWA ,  Masahiro SHIMOYA ,  Mitsuyoshi SAITO ,  Shota CHATANI

IPC: F24F13/22 ,  F25B39/02 ,  F28F1/32 ,  F28F1/30

Abstract: A heat exchanger includes a tube, a corrugated fin, and a plurality of grooves. The corrugated fin has a plurality of bent portions and a plurality of fin main bodies disposed between the bent portions. The multiple grooves are arranged at specified intervals from each other and are formed on a surface of the corrugated fin to enhance the hydrophilicity of the surface. The corrugated fin includes a first thick portion in which at least one of the grooves is included and a second thick portion thicker than the first thick portion in a cross-sectional view along an extending direction of the bent portions.

公开(公告)号：US20230003467A1

公开(公告)日：2023-01-05

申请号：US17943246

申请日：2022-09-13

Applicant: DENSO CORPORATION

Inventor： Keita MORIMOTO ,  Tomohiko NAKAMURA ,  Mitsuyoshi SAITO ,  Tatsuhiko NISHINO ,  Shota CHATANI ,  Toshiya NAGASAWA

IPC: F28F17/00 ,  F28F1/12 ,  F25B39/02 ,  F28F1/32 ,  F28D21/00 ,  F28D1/053

Abstract: A heat exchanger includes tubes arranged in one direction, and a corrugated fin provided between the tubes. The corrugated fin includes joints joined to the tubes, and fin bodies that connect the joints which are located next to each other along the wave shape. The fin body includes a cut-raised portion that has a shape in which a part of the fin body is cut and raised for promotion of heat transfer. The cut-raised portion includes a cut-raised end on at least one end of the cut-raised portion in the one direction. The cut-raised end has recesses and projections on its surface that increase hydrophilicity of the surface of the cut-raised end.

公开(公告)号：US20170082381A1

公开(公告)日：2017-03-23

申请号：US15126442

申请日：2015-03-23

Applicant: DENSO CORPORATION

Inventor： Ryohei SUGIMURA ,  Mitsuharu INAGAKI ,  Mitsuyoshi SAITO

IPC: F28F1/12 ,  F28D20/02 ,  F28D1/053

CPC classification number: F28F1/128 ,  B60H1/32 ,  F28D1/053 ,  F28D1/05383 ,  F28D20/02 ,  F28D2020/0013 ,  F28D2021/0085 ,  F28F1/30 ,  F28F2215/04 ,  F28F2240/00 ,  F28F2265/14 ,  Y02E60/145

Abstract: A heat exchanger includes: stacked tubes through which a refrigerant flows; and a fin joined to the tube to increase a heat exchange area with air flowing around the tube. A cross-section of the fin perpendicular to a flow direction of the air is shaped in a wave shape that has: planar sections substantially parallel to the flow direction of the air; and a top for connecting between the adjacent planar sections. A clearance is defined in the planar section of the fin. When a portion of the fin where the shortest distance from a center line between the adjacent planar sections becomes the maximum is set as a furthest section in a cross-section perpendicular to a stacking direction of the tubes, the clearance is defined in one furthest section or at least one of a plurality of furthest sections.