公开(公告)号：US20240276677A1

公开(公告)日：2024-08-15

申请号：US18641700

申请日：2024-04-22

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Tatsuhiro NUMOTO

IPC: H05K7/20

CPC classification number: H05K7/20336

Abstract: A thermal diffusion device that includes: a housing having a first inner wall surface and a second inner wall surface facing each other in a thickness direction and defining an internal space of the housing; a working medium enclosed in the internal space of the housing; and a wick having a sheet shape and disposed in the internal space of the housing, wherein the wick has at least one bent portion protruding from the first inner wall surface toward the second inner wall surface, and wherein a space defined by the at least one bent portion of the wick and the first inner wall surface forms a liquid channel for the working medium.

公开(公告)号：US20240302105A1

公开(公告)日：2024-09-12

申请号：US18663541

申请日：2024-05-14

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Tatsuhiro NUMOTO ,  Tsuyoshi MUKAI

IPC: F28D15/02 ,  H05K7/20

CPC classification number: F28D15/0266 ,  H05K7/20336

Abstract: A thermal diffusion device that includes: a housing including a first inner wall surface and a second inner wall surface facing each other in a thickness direction; a working medium sealed in an inner space of the housing; and a wick structure in the inner space of the housing, the wick structure including a supporting portion in contact with the first inner wall surface and a portion having holes composed of a same material as the supporting portion and integral with the supporting portion.

公开(公告)号：US20200045847A1

公开(公告)日：2020-02-06

申请号：US16598063

申请日：2019-10-10

Applicant: Murata Manufacturing Co., Ltd.

Inventor： TAKUO WAKAOKA ,  Norikazu KUME ,  Haruhiko IKEDA ,  Osamu NAKAO ,  Tatsuhiro NUMOTO

IPC: H05K7/20 ,  F28D15/04

Abstract: A vapor chamber that includes a casing, a pillar in an internal space of the casing and that supports the casing from an inside thereof, a working fluid in the internal space of the casing, and recessed portions in at least a portion of a main external surface of the casing.

公开(公告)号：US20240365512A1

公开(公告)日：2024-10-31

申请号：US18767209

申请日：2024-07-09

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Tatsuhiro NUMOTO

IPC: H05K7/20 ,  G06F1/20

CPC classification number: H05K7/20336 ,  G06F1/203 ,  H05K7/20327

Abstract: A thermal diffusion device that includes: a housing having a first inner wall surface and a second inner wall surface that face each other in a thickness direction and define and internal space; a working medium enclosed in the internal space of the housing; and a wick in the internal space of the housing. The wick includes: a support that is in contact with the first inner wall surface; a perforated body that is in contact with the support, the perforated body having a through-hole that penetrates the perforated body in the thickness direction; and a protrusion portion on a peripheral edge of the through-hole and extending in a direction toward the first inner wall surface.

公开(公告)号：US20240361084A1

公开(公告)日：2024-10-31

申请号：US18767159

申请日：2024-07-09

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Tatsuhiro NUMOTO

IPC: F28D15/02 ,  F28D21/00 ,  H05K7/20

CPC classification number: F28D15/0266 ,  H05K7/20336 ,  F28D2021/0028

Abstract: A thermal diffusion device that includes: a housing having a first inner wall surface and a second inner wall surface that face each other in a thickness direction and define an internal space; a working medium enclosed in the internal space of the housing; and a wick in the internal space of the housing. The wick includes: a support that is in contact with the first inner wall surface; a perforated body that is in contact with the support, the perforated body having a through-hole that penetrates the perforated body in the thickness direction; and protrusion portion extending from a peripheral edge of the through-hole in a direction toward the second inner wall surface.

公开(公告)号：US20190271511A1

公开(公告)日：2019-09-05

申请号：US16414802

申请日：2019-05-17

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Atsushi KISHIMOTO ,  Norikazu KUME ,  Haruhiko IKEDA ,  Takuo WAKAOKA ,  Osamu CHIKAGAWA ,  Tatsuhiro NUMOTO

IPC: F28D15/04

Abstract: A vapor chamber includes a housing including first and second sheets that face each other and that include respective outer edge portions joined to each other, supports that support the first and second sheets from inside and that are disposed therebetween, and a hydraulic fluid enclosed in the housing. The first and second sheets do not include an angled portion having an angle of about 90° or less between a joint and a support nearest to the joint. The expression 0.02≤b/a≤0.3 is satisfied, where a is a distance from an outer edge of the outermost support to an inner edge of the joint between the first and second sheets, and b is a distance between the first and second sheets at the outer edge of the outermost support.