Title:
車載用ウーファー装置
Document Type and Number:
Japanese Patent JP7160761
Kind Code:
B2
Abstract:
An on-vehicle woofer system includes: a speaker unit including a magnetic circuit and a diaphragm connected to the magnetic circuit, and capable of generating sound waves by electrically driving the magnetic circuit to vibrate the diaphragm; a Helmholtz resonator to which a first surface of the diaphragm is oriented, the Helmholtz resonator being connected to the speaker unit; a sealed container to which a second surface of the diaphragm that is a back surface of the first surface is oriented, the sealed container providing a sealed space connected to the speaker unit; and a tube penetrating the Helmholtz resonator, the speaker unit, and the sealed container.
Inventors:
Takayuki Tabata
Application Number:
JP2019102557A
Publication Date:
October 25, 2022
Filing Date:
May 31, 2019
Export Citation:
Assignee:
Foster Electric Co., Ltd.
International Classes:
H04R1/02; B60R11/02
Domestic Patent References:
| JP2013509049A | ||||
| JP2012503940A | ||||
| JP7137581A | ||||
| JP2015071372A |
Foreign References:
| WO2011052080A1 | ||||
| WO2013005578A1 |
Attorney, Agent or Firm:
Naoki Maekawa
Takayama Michio
Takayama Michio