Vapor chamber
AssigneeMurata Manufacturing Co., Ltd.
InventorsTatsuhiro Numoto, Takuo Wakaoka, Atsushi Kishimoto, Osamu Chikagawa
Life of this patent
Estimating the term…
Abstract
A vapor chamber that includes a housing composed of a first sheet and a second sheet facing each other and having outer edge portions thereof joined to each other to define an internal space, the second sheet having a plurality of projecting portions on an inner surface thereof that faces the internal space; a pillar between the first sheet and the second sheet and supporting them from the internal space; a wick arranged in the housing, and a working fluid enclosed in the housing. A first flow path and a second flow path are formed in the internal space, and a cross-sectional area of the second flow path is larger than a cross-sectional area of the first flow path.
Claims14
A vapor chamber comprising:
- a housing composed of a first sheet and a second sheet facing each other and having outer edge portions thereof joined to each other to define an internal space, the second sheet having a plurality of projecting portions on an inner surface thereof that faces the internal space;
- a pillar between the first sheet and the second sheet and supporting the first sheet and the second sheet from the internal space;
- a wick in the internal space of the housing;
- and
- a working fluid in the internal space of the housing,
- wherein a first flow path is formed between adjacent projecting portions of the plurality of projecting portions together with the wick,
- as viewed in a plan view of the vapor chamber, a second flow path is formed in a terminal region between the pillar and the joined outer edge portions along at least one side of the housing, and the second flow path is surrounded by only the second sheet, the projecting portions, and an end of the wick, and
- a cross-sectional area of the second flow path is larger than a cross-sectional area of the first flow path.
Dependencies are inferred from the claim text.