Patent ID: 9476652
Filing Date: 2016-10-25
CPC Classification: F28D,Y10T

Claim Text:
1. A thin heat pipe structure, comprising: a pipe body having a vaporizing end and a condensing end outwardly extended from the vaporizing end; the vaporizing end and the condensing end internally defining a first chamber and a second chamber which communicates with the first chamber, respectively; a working fluid being filled in the first and the second chamber; the condensing end being gradually enlarged beginning beyond the vaporizing end, such that a cross-sectional area of the pipe body at the vaporizing end is smaller than that at the condensing end there being an extended inclined sidewall region of constant slope extending completely to the end of the condensing end giving increased open condensing volume; and a space in the first chamber being smaller than a space in the second chamber; and at least one wick structure being provided in the first and the second chamber, such that the wick structure and the first and second chambers together define at least one channel in the pipe body; wherein the first and the second chamber commonly have a first sidewall, a second sidewall, a third sidewall, and a fourth sidewall; the first sidewall being located opposite to the second sidewall, and the third sidewall being located opposite to the fourth sidewall; and wherein the wick structure has a first side, a second side located opposite to the first side, a third side, and a fourth side located opposite to the third side; the second side being in contact with the second sidewall; the third side being located corresponding to the third sidewall with a first channel defined between the third side and the third sidewall; the fourth side being located corresponding to the fourth sidewall with a second channel defined between the fourth side and the fourth sidewall; a portion of the first sidewall in the first channel at the vaporizing end being in contact with a whole surface of the first side of the wick structure, and wherein another portion of the first sidewall in the second channel at the condensing end is not attached to the wick structure such that together with the first side of the wick structure define an interspace between the wick structure and the first sidewall; and wherein the interspace is communicable with the first and the second channel; and wherein the first and second channels are not provided with the wick structure.