| US 7,543,630 B2 | ||
| Heat pipe incorporating outer and inner pipes | ||
| Cheng-Tien Lai, Tu-Chen (Taiwan); Tsung-Lung Lee, Tu-Chen (Taiwan); and Shenghua Wang, Shenzhen (China) | ||
| Assigned to Fu Zhun Precision Industry (Shen Zhen) Co., Ltd., Shenzhen City, Guangdong Province (China); and Foxconn Technology Co., Ltd., Tu-Cheng, Taipei Hsien (Taiwan) | ||
| Filed on May 08, 2006, as Appl. No. 11/430,504. | ||
| Application 11/430504 is a division of application No. 10/144126, filed on May 10, 2002, granted, now 7,484,553. | ||
| Claims priority of application No. 91204055 U (TW), filed on Mar. 29, 2002. | ||
| Prior Publication US 2006/0201656 A1, Sep. 14, 2006 | ||
| This patent is subject to a terminal disclaimer. | ||
| Int. Cl. F28D 15/04 (2006.01) | ||
| U.S. Cl. 165—104.26 [165/183] | 2 Claims |
| 1. A heat pipe comprising:
an outer pipe receiving working fluid;
an inner pipe fixedly received in the outer pipe, at least one cutout being defined in each of opposite ends of the inner
pipe for allowing the working fluid to pass between the inner pipe and the outer pipe; and
a gap defined between the outer pipe and the inner pipe;
wherein the gap is very narrow such that an inner wall of the outer pipe and an outer wall of the inner pipe cooperatively
form a wicking structure;
wherein a plurality of protrusions is arranged on the inner wall of the outer pipe, whereby a plurality of capillary gaps
is defined between the outer pipe and the inner pipe;
wherein the inner pipe has a height approximately equal to a height of the outer pipe and wherein the working fluid passes
between the inner pipe and the outer pipe only through the at least one cut defined in each of opposite ends of the inner
pipe; and
wherein the outer pipe has an integrally sealed bottom and an open top sealed by a cap.
|