US 12,131,725 B2
Electronic system with heat dissipation and noise reduction function and related acoustic filter
Jia-Ren Chang, New Taipei (TW); Ruey-Ching Shyu, New Taipei (TW); and Feng-Ming Liu, New Taipei (TW)
Assigned to ACER INCORPORATED, New Taipei (TW)
Filed by Acer Incorporated, New Taipei (TW)
Filed on Aug. 30, 2022, as Appl. No. 17/898,939.
Claims priority of application No. 111111698 (TW), filed on Mar. 28, 2022.
Prior Publication US 2023/0306945 A1, Sep. 28, 2023
Int. Cl. G10K 11/16 (2006.01); G10K 11/172 (2006.01); H05K 7/20 (2006.01)
CPC G10K 11/172 (2013.01) [G10K 11/161 (2013.01); H05K 7/20172 (2013.01)] 18 Claims
OG exemplary drawing
 
1. An electronic system, comprising: a system air vent; a heat sink; a fan disposed adjacent a first side of the heat sink; and an acoustic filter disposed between the system air vent and a second side of the heat sink, wherein the acoustic filter comprises an expansion chamber and a resonant cavity connected to the expansion chamber via a neck channel; wherein the expansion chamber has a cross sectional area that is the same as a cross sectional area of an outlet of the fan.