Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
SATELLITE TIME TRANSFER DEVICE
Document Type and Number:
WIPO Patent Application WO/2020/173193
Kind Code:
A1
Abstract:
Disclosed is a satellite time transfer device, comprising a circuit board (10), an upper cover (20) and a quartz crystal oscillator (30). The upper cover (20) covers the circuit board (10) and encloses the circuit board to form a mounting cavity. The surface of the circuit board (10) is provided with a heat insulation tank (11), and a support member (116) is provided in the heat insulation tank (11). The quartz crystal oscillator (30) is fixed on the support member (116) and is located in the mounting cavity; and a heat insulation air layer is formed between the quartz crystal oscillator (30) and the bottom of the heat insulating tank (11). The heat insulation tank (11) is provided on the circuit board (10) such that the heat insulation air layer in the heat insulation tank (11) replaces the circuit board (10) for heat transfer and conduction. The heat conductivity coefficient of air is less than that of the circuit board (10) such that the thermal resistance for heat exchange between the quartz crystal oscillator (30) and an external environment becomes large, thereby reducing the influence of external airflow on the temperature of the quartz crystal oscillator (30) and improving the temperature stability of the quartz crystal oscillator (30).

Inventors:
TAN SIYI (CN)
GAO FENG (CN)
XU XIANGBIN (CN)
XIE SHU (CN)
Application Number:
PCT/CN2019/126668
Publication Date:
September 03, 2020
Filing Date:
December 19, 2019
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
TECHTOTOP MICROELECTRONICS TECH CO LTD (CN)
International Classes:
H03L1/04
Foreign References:
CN109743056A2019-05-10
CN209488554U2019-10-11
CN108432126A2018-08-21
US8695186B22014-04-15
Attorney, Agent or Firm:
SCIHEAD IP LAW FIRM (CN)
Download PDF: