US 12,380,872 B2
Noise reduction module and electronic device
Cheng-Pang Wang, New Taipei (TW); Guang-Zong Li, New Taipei (TW); Chieh-Yu Ma, New Taipei (TW); and Chi-Ken Tsai, New Taipei (TW)
Assigned to Wistron Corporation, New Taipei (TW)
Filed by Wistron Corporation, New Taipei (TW)
Filed on Jun. 14, 2022, as Appl. No. 17/839,496.
Claims priority of application No. 111112723 (TW), filed on Apr. 1, 2022.
Prior Publication US 2023/0317044 A1, Oct. 5, 2023
Int. Cl. G10K 11/16 (2006.01); H05K 5/02 (2006.01)
CPC G10K 11/16 (2013.01) [H05K 5/0217 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A noise reduction module comprising:
a casing comprising an upper plate, a lower plate and two side plates, the two side plates connecting the upper plate and the lower plate;
at least one sound weakening mechanism disposed in the casing, each of the at least one sound weakening mechanism comprising two plate members, a passage being formed between the two plate members; and
at least one sound absorbing mechanism disposed in the casing, each of the at least one sound absorbing mechanism comprising a bracket and at least one first sound absorbing structure, the at least one first sound absorbing structure being disposed on the bracket;
wherein the casing has a plurality of sliding grooves located between the two side plates and a plurality of positioning holes located on the two side plates, the at least one sound weakening mechanism and the at least one sound absorbing mechanism are slidably disposed in the sliding grooves, positions of the positioning holes correspond to positions of the sliding grooves, opposite sides of each of the at least one sound weakening mechanism respectively have a first elastic positioning portion, opposite sides of each of the at least one sound absorbing mechanism respectively have a second elastic positioning portion, the two first elastic positioning portions and the two second elastic positioning portions engage with the positioning holes.