Heat pipe, heat dissipating component, and method for manufacturing heat pipe
AssigneeMurata Manufacturing Co., Ltd.
InventorsSeitaro Washizuka, Yoshihiro Kawaguchi, Takashi Kitamura
Life of this patent
Estimating the term…
Abstract
A heat pipe that includes a pipe casing, a porous wick, and sealing members. Both end portions of the pipe casing are sealed by the sealing members, respectively. The sealing members each comprise a first metal foil and an intermetallic compound phase. The inside of the pipe casing is filled with a working fluid. The porous wick generates capillarity for the working fluid by a plurality of pores. The porous wick is provided inside the pipe casing. As a result, the pipe casing and the porous wick form a cavity extending in a longitudinal direction of the pipe casing. The porous wick comprises first metal grains, second metal grains, and an intermetallic compound phase.
Claims17
A heat pipe comprising:
- a pipe casing filled with a working fluid;
- and
- a porous wick inside the pipe casing,
- wherein
- the porous wick includes an intermetallic compound formed from at least a first metal and a second metal having a melting point higher than a melting point of the first metal, and the porous wick further includes a third metal having a melting point higher than the melting point of the first metal, and wherein the third metal has a diameter larger than a diameter of the second metal, and the third metal is chemically reactive with the first metal.
A method for manufacturing a heat pipe, the method comprising:
- providing a metal composition inside a pipe casing, the metal composition containing a first metal and a second metal having a melting point higher than a melting point of the first metal, the metal composition further containing a third metal having a melting point higher than the melting point of the first metal, and wherein the third metal has a diameter larger than a diameter of the second metal, and the third metal is chemically reactive with the first metal;
- and
- heating the metal compound and causing the first metal and the second metal to react with each other to form a porous wick comprising a material containing an intermetallic compound inside the pipe casing.
Dependencies are inferred from the claim text.