US 12,002,728 B2
Integrated radiator having temperature gradient
Jiang Liu, Guangdong (CN); Chi Sha, Fremont, CA (US); Lihui Chen, Guangdong (CN); Rongkui Zheng, Guangdong (CN); Hui Du, Guangdong (CN); Yu Lei, Guangdong (CN); and Bin Wang, Guangdong (CN)
Assigned to QKM TECHNOLOGY (DONG GUAN) CO., LTD, Guangdong (CN)
Appl. No. 17/254,010
Filed by QKM TECHNOLOGY (DONG GUAN) CO., LTD, Guangdong (CN)
PCT Filed Jun. 20, 2019, PCT No. PCT/CN2019/092125
§ 371(c)(1), (2) Date Dec. 18, 2020,
PCT Pub. No. WO2019/242697, PCT Pub. Date Dec. 26, 2019.
Claims priority of application No. 201810639815.2 (CN), filed on Jun. 20, 2018; and application No. 201820959130.1 (CN), filed on Jun. 20, 2018.
Prior Publication US 2021/0272871 A1, Sep. 2, 2021
Int. Cl. H05K 7/20 (2006.01); H01L 23/367 (2006.01); H01L 23/467 (2006.01)
CPC H01L 23/3672 (2013.01) [H01L 23/467 (2013.01); H05K 7/2039 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An integrated radiator having a temperature gradient disposed between a high-temperature device and a low-temperature device, comprising:
a first heat dissipation unit and a second heat dissipation unit which are integrally fixed,
wherein the first heat dissipation unit is configured to maintain the high-temperature device within a first temperature range, the second heat dissipation unit is configured to maintain the low-temperature device within a second temperature range,
a thermal conductive path of the first heat dissipation unit is isolated from a thermal conductive path of the second heat dissipation unit, and
the first heat dissipation unit is physically connected to but thermally separated from the second heat dissipation unit;
wherein the second heat dissipation unit comprises a first heat dissipation plate, a side surface of the first heat dissipation plate facing away from the high-temperature device is kept in contact with the low-temperature device, and a side surface of the first heat dissipation plate facing towards the high-temperature device is provided with an auxiliary heat dissipation channel, and the auxiliary heat dissipation channel is thermally separated from the first heat dissipation unit.