Heat dissipation structure combining vapor chamber with heat pipe and manufacturing method thereof

1 . A heat dissipation structure, comprising:

a vapor chamber ( 1 ), comprising an upper shell ( 11 ), a lower shell ( 12 ) correspondingly sealed with the upper shell ( 11 ), and a first wick structure ( 13 ) disposed on an inner surface of the upper shell ( 11 ), wherein a chamber(S) is defined between the upper shell ( 11 ) and the lower shell ( 12 ), a penetration hole ( 111 ) communicating with the chamber(S) is defined on the upper shell ( 11 ), and a through hole ( 131 ) corresponding to the penetration hole ( 111 ) is defined on the first wick structure ( 13 );

a heat pipe ( 2 ), comprising a pipe ( 21 ) inserted to and sealed with the penetration hole ( 111 ) and a second wick structure ( 22 ) disposed on an inner surface of the pipe ( 21 ), wherein a hollow slot ( 211 ) corresponding to the through hole ( 131 ) is defined on the pipe ( 21 ), the second wick structure ( 22 ) comprises a revealing section ( 221 ) exposed from the hollow slot ( 211 ); and

a working fluid, filled in the chamber (S);

wherein, an inner diameter of the through hole ( 131 ) is smaller than an inner diameter of the penetration hole ( 111 ), and the first wick structure ( 13 ) is embedded in the hollow slot ( 211 ) and attached to the revealing section ( 221 );

wherein the pipe ( 21 ) comprises a bottom edge ( 212 ), the hollow slot ( 211 ) is an opening formed on the pipe ( 21 ) not cutting through the bottom edge ( 212 ), and a partial portion of the pipe ( 21 ) is remained between a lower edge of the hollow slot ( 211 ) and the bottom edge ( 212 ).

2 . The heat dissipation structure according to claim 1 , wherein the hollow slot ( 211 ) is structured in a manner of the pipe ( 21 ) being scrapped or cut.

3 . The heat dissipation structure according to claim 1 , wherein the first wick structure ( 13 ) and the second wick structure ( 22 ) comprise a metal braided mesh or a combination of a metal braided mesh and a powder sintered body, respectively.

4 . The heat dissipation structure according to claim 1 , wherein a gap (H) is defined between the lower edge of the hollow slot ( 211 ) and the bottom edge ( 212 ).

5 . The heat dissipation structure according to claim 1 , wherein the lower shell ( 12 ) comprises a plurality of protrusions ( 121 ) extending toward the chamber (S), and the bottom edge ( 212 ) abutting against tops of the plurality of protrusions ( 121 ).

6 . The heat dissipation structure according to claim 1 , wherein the hollow slot ( 211 ) is an annular groove arranged along an entire circumference of the pipe ( 21 ).

7 . The heat dissipation structure according to claim 1 , wherein the hollow slot ( 211 ) is a C-shaped groove ( 214 ) arranged along a partial circumference of the pipe ( 21 ).

8 . A manufacturing method of a heat dissipation structure, the manufacturing method comprising:

A) preparing an upper shell ( 11 ), and processing and forming a penetration hole ( 111 ) on the upper shell ( 11 );

B) preparing a first wick structure ( 13 ), and processing and forming a through hole ( 131 ) corresponding to the penetration hole ( 111 ) on the first wick structure ( 13 ), wherein an inner diameter of the through hole ( 131 ) is smaller than an inner diameter of the penetration hole ( 111 );

C) disposing the first wick structure ( 13 ) on a surface of the upper shell ( 11 ), and aligning the through hole ( 131 ) with the penetration hole ( 111 );

D) preparing a lower shell ( 12 ), and sealing the upper shell ( 11 ) and the lower shell ( 12 ) correspondingly, wherein a chamber (S) is defined between the upper shell ( 11 ) and the lower shell ( 12 );

E) preparing a heat pipe ( 2 ), wherein the heat pipe ( 2 ) comprises a pipe ( 21 ) and a second wick structure ( 22 ) disposed on an inner surface of the pipe ( 21 ), processing and forming a hollow slot ( 211 ) on the pipe ( 21 ), and exposing a revealing section ( 221 ) of the second wick structure ( 22 ) from the hollow slot ( 211 ), wherein the pipe ( 21 ) comprises a bottom edge ( 212 ), the hollow slot ( 211 ) is an opening formed on the pipe ( 21 ) not cutting through the bottom edge ( 212 ), and a partial portion of the pipe ( 21 ) is remained between a lower edge of the hollow slot ( 211 ) and the bottom edge ( 212 );

F) inserting the heat pipe ( 2 ) into the penetration hole ( 111 ) and sealing the heat pipe ( 2 ) with the penetration hole ( 111 ), disposing the revealing section ( 221 ) corresponding to the through hole ( 131 ) to embed the first wick structure ( 13 ) in the hollow slot ( 211 ), and attaching the first wick structure ( 13 ) with the revealing section ( 221 ); and

G) performing a filling process and a degassing and sealing processes on a semi-finished product in step F).

9 . The manufacturing method according to claim 8 , wherein the D) further comprises stamping the lower shell ( 12 ) to form a plurality of protrusions ( 121 );

and the F) further comprises abutting the bottom edge ( 212 ) of the pipe ( 20 ) against tops of the plurality of protrusions ( 121 ).

10 . The manufacturing method according to claim 8 , wherein the E) further comprises scraping or cutting the pipe ( 21 ) to form the hollow slot ( 211 ).