Patent ID: 11864350
Assignee: HUAWEI TECHNOLOGIES CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H  F | IPC H

Claim 17:
18. A terminal device, comprising:
a display;
a middle frame;
a rear housing;
a printed circuit board; and
a heat conduction apparatus, comprising:
a first cover plate and a second cover plate, wherein the first cover plate is hermetically connected to the second cover plate, the first cover plate defines a plurality of grooves, a supporting portion is disposed between two adjacent grooves of the plurality of grooves, each groove of the plurality of grooves includes a liquid circulation channel and a vapor circulation channel, each liquid circulation channel is filled with a liquid working medium, and each liquid circulation channel is in communication with the corresponding vapor circulation channel in a manner that when the liquid working medium vaporizes into vapor, the vapor enters the corresponding vapor circulation channel and condenses into liquid, and the liquid enters the corresponding liquid circulation channel;

wherein the printed circuit board and the display are located on different sides of the middle frame;
a heat emitting element is disposed on the printed circuit board, a shielding can covers the heat emitting element, a via extends in the shielding can, a thermal interface material passes through the via and is in contact with the heat emitting element, and the middle frame is in contact with the thermal interface material;
wherein the rear housing is located on a side of the printed circuit board; and
wherein the heat conduction apparatus is disposed in the middle frame.