US 12,309,967 B2
Electronic device including accommodation cavity and flow channel in housing
Na Lei, Beijing (CN)
Assigned to LENOVO (BEIJING) LIMITED, Beijing (CN)
Filed by Lenovo (Beijing) Limited, Beijing (CN)
Filed on Mar. 9, 2022, as Appl. No. 17/691,047.
Claims priority of application No. 202110885533.2 (CN), filed on Aug. 3, 2021.
Prior Publication US 2023/0044636 A1, Feb. 9, 2023
Int. Cl. H05K 7/20 (2006.01); G06F 1/20 (2006.01)
CPC H05K 7/20254 (2013.01) [G06F 1/203 (2013.01); H05K 7/20272 (2013.01)] 13 Claims
OG exemplary drawing
 
1. An electronic device comprising:
a first housing including a first plate body and a second plate body;
a second housing connected to the first housing, an accommodation cavity being formed between the first housing and the second housing;
a heat generation member arranged in the accommodation cavity; and
a flow channel arranged between the first plate body in contact with the heat generation member and the second plate body connected to the first plate body in the first housing and configured to accommodate heat exchange liquid and dissipate heat for the heat generation member through the heat exchange liquid;
wherein:
the second plate body has a straight plate structure, is located at an outer side of the electronic device, and has a low thermal conductivity that reduces the heat dissipated through the heat exchange liquid from being transferred to the outer side of the electronic device; and
the first plate body has a thermal conductivity greater than that of the second plate body and transfers the heat from the heat generation member to the heat exchange liquid, and includes:
a first portion having a straight plate structure, the first portion being spaced apart from the second plate body by the flow channel; and
a second portion extending from an edge of the first portion and being perpendicular to the first portion, the first portion and the second portion forming an integral structure, and the second portion enclosing the second plate body and being connected to an edge of the second plate body with no gap therebetween.