Earcushion with acoustic tube

• US 10,321,220 B1
• Filed: 03/13/2018
• Issued: 06/11/2019
• Est. Priority Date: 12/27/2017
• Status: Active Grant

• Current Assignee: Shengyuan Science And Technology (Shenzhen) Co., Ltd.
• Original Assignee: Shengyuan Science And Technology (Shenzhen) Co., Ltd.
• Inventors: Huang, Meng
• Primary Examiner(s): Islam, Mohammad K
• Application Number:
  US15/919,236
• Publication Number:
  US 20190200115A1
• Time in Patent Office: 455 Days
• CPC Class Codes: H04R 1/1075 Mountings of transducers in earphones or headphones
• CPC Class Codes: H04R 1/1083 Reduction of ambient noise active noise reduction per se G10K11/175; protective devices for the ear, e.g. providing acoustic protection A61F11/06
• CPC Class Codes: H04R 1/2803 for loudspeaker transducers
• CPC Class Codes: H04R 1/2846 Vents, i.e. ports, e.g. shape thereof or tuning thereof with damping material number or position of ports H04R1/2838; vents in bass reflex type enclosures H04R1/2823
• CPC Class Codes: H04R 2460/01 Hearing devices using active noise cancellation
• CPC Class Codes: H04R 2460/15 Determination of the acoustic seal of ear moulds or ear tips of hearing devices

Abstract

An earcushion with acoustic tube, comprising an earcushion body; the earcushion body is provided with a front acoustic cavity of speaker, the front acoustic cavity of speaker is provided with an acoustic tube, one end of the acoustic tube is arranged in the front acoustic cavity of speaker; the other end is connected with a resonant cavity, the volume of the resonant cavity is much greater than that of the acoustic tube, the resonant cavity is communicated with the outside atmosphere, the linear amplitude of the speaker vibration system may be increased and the system power may be improved, it can also improve the loop feedback environment.

Claims

1. An earcushion with acoustic tube, comprising an earcushion body;

the earcushion body is provided with a front acoustic cavity of speaker, the front acoustic cavity of speaker is provided with an acoustic tube, one end of the acoustic tube is arranged in the front acoustic cavity of speaker;

the other end is connected with a resonant cavity, the volume of the resonant cavity is much greater than that of the acoustic tube, the resonant cavity is communicated with the outside atmosphere, the bore diameter of the acoustic tube is 0.8 mm-3.0 mm, and the length is 3 mm-30 mm, the earcushion with acoustic tube wherein a mould hole butted with the acoustic tube is arranged on the plastic part of the earcushion body, the mould hole is connected to the resonant cavity, the resonant cavity is communicated with the outside.