US 12,464,277 B2
Air flow control valve structure for audio device
Donghyun Seo, Ansan-si (KR); and Minkoo Park, Hwaseong-si (KR)
Filed by BUJEON CO., LTD., Ansan-si (KR)
Filed on Mar. 11, 2024, as Appl. No. 18/600,919.
Claims priority of application No. 10-2023-0032503 (KR), filed on Mar. 13, 2023.
Prior Publication US 2024/0314485 A1, Sep. 19, 2024
Int. Cl. H04R 1/10 (2006.01); H04R 3/00 (2006.01)
CPC H04R 1/1041 (2013.01) [H04R 1/1016 (2013.01); H04R 2420/07 (2013.01); H04R 2460/11 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A true wireless stereo (TWS) speaker, wherein an appearance of the TWS speaker is formed of a housing, a first vent hole is formed in a front surface of the housing and a second vent hole is formed in a side surface of the housing, an inside of the housing is divided into an upper space and a lower space by a bracket disposed across a longitudinal direction, a driver is disposed on one side of the lower space, and a sound emission portion is provided to a front to communicate with the driver;
wherein the driver is supported by a partition wall on a side opposite to the sound emitting portion and is blocked from the lower space, and a forward vibration sound of the driver is emitted through the sound emitting portion without leaking into the lower space;
wherein the second vent hole is formed in a side surface of the lower space, so that external sound coming through the second vent hole is blocked from being merged with the vibration sound of the driver, and the external sound flows in through the first vent hole at a front location; and
wherein an air flow control valve structure is formed to surround the first vent hole and selectively controls opening and closing for external sound.