US Patent No. 9,883,613

SUBRACK AND TERMINAL


Patent No. 9,883,613
Issue Date January 30, 2018
Title Subrack And Terminal
Inventorship Yibing Gao, Guangdong (CN)
Dongsheng Yao, Guangdong (CN)
Fei Zhao, Guangdong (CN)
Assignee ZTE CORPORATION, Guangdong (CN)

Claim of US Patent No. 9,883,613

1. A subrack, comprising
a chassis;
a first main board region arranged in a front part of the chassis;
a second main board region arranged at a rear of the chassis;
a first air duct arranged in the chassis, wherein a first air inlet of the first air duct is arranged on a front wall of the
chassis, the first air inlet and the first main board region are oppositely arranged, and a first air outlet of the first
air duct is arranged on a rear wall of the chassis; and

a second air duct arranged in the chassis, wherein the second air duct and the first air duct are separated, a second air
inlet of the second air duct is arranged on the front wall of the chassis, the second air inlet is located below the first
main board region, and a second air outlet of the second air duct is arranged on the rear wall of the chassis;

wherein a first partition board for separating the first air inlet from the second air inlet is arranged between the first
main board region and the second air inlet;

wherein the first main board region comprises a plurality of first sub-main boards arranged horizontally; each of the plurality
of first sub-main boards comprises a PCB, a panel and a tray; a part of the panel located on an upper side of the PCB is provided
with a first ventilation hole; a second ventilation hole is arranged between the PCB and the tray; the first ventilation hole
and the second ventilation hole are communicated with the first air inlet; and the second ventilation hole is communicated
with an adjacent first sub-main board through an opening in the tray.