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Doors with Structural Acoustic Chambers

A car door and sound chamber technology, applied in the field of car doors, can solve the problems of increasing the volume of the side door of the car cockpit, limiting the volume of the sound chamber, increasing the quality, etc., to achieve the effect of improving the quality of sound rendering, improving performance and reducing quantity

Inactive Publication Date: 2018-03-16
PEZHO SITROEN AUTOMOBILS SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The inconvenience of this design is that the volume of the acoustic chamber is limited by the volume of the side impact absorber
Additionally, the bulk of the ducts connecting the speakers to the side impact absorbers can add bulk to the side doors of the car cabin and add mass
However, this solution is not applicable to doors that do not include impact absorbers

Method used

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  • Doors with Structural Acoustic Chambers
  • Doors with Structural Acoustic Chambers
  • Doors with Structural Acoustic Chambers

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0036] Such as figure 1 As shown, the door 1 of the vehicle consists of a box 13 located under a window portion 15 .

[0037] figure 2 A door 1 of a vehicle is shown, comprising an inner panel 11 to which an acoustic chamber 2 is fixed. In this embodiment, the acoustic chamber 2 extends from the front edge to the rear edge of said inner panel 11 , the front and rear being defined relative to the frame of reference of the vehicle on which the door 1 is mounted and closed. The acoustic chamber 2 comprises a loudspeaker opening 21 adapted to receive the loudspeaker 5 such that sound emitted through the rear of said loudspeaker 5 is only propagated within the acoustic chamber 2 . Fixing mechanisms for the loudspeaker 5 known to those skilled in the art are positioned on the surface of the acoustic chamber 2 , around the opening of the loudspeaker 21 . The upper edge of the acoustic chamber 2 extends substantially along the upper edge of the box 13 of the vehicle door 1 . For ...

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PUM

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Abstract

The invention relates to a vehicle door (1) comprising at least one inner panel (11) and one outer panel (12), said inner (11) and outer (12) panels defining therebetween a subwoofer (13) in the portion of the door (1) located under a window portion (15) of the door (1), and an acoustic chamber (2), characterised in that the acoustic chamber (2) is made up of at least one hollow rigid part defining a space, said rigid part which forms said acoustic chamber (2) extending between the side edges of the inner panel (11), at the top of the subwoofer (13) along the window portion (15), and creating a longitudinal rigid reinforcement structure between the side edges of the inner panel (11).

Description

technical field [0001] The invention relates to a vehicle door comprising an acoustic chamber for different door assemblies, which participates in the stiffness of the vehicle door and integrates the support function. Background technique [0002] In order to improve the sound rendering quality of the loudspeaker, characteristically in the low frequencies, it is suppressed to fix the loudspeaker on the sound chamber. One of the functions of this type of acoustic chamber is to avoid interference of sound waves emanating from the rear of the loudspeaker with sound waves generated by the front of said loudspeaker. For good performance, the acoustic chamber must preferably have a large volume. In a car, the speakers are usually placed in the doors. Placing such a large volume acoustic chamber in a vehicle door is difficult to achieve in the absence of available space in the vehicle door, since it results in an increase in the external volume of the cabin side door. In order t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60J5/04
CPCB60J5/0408B60J5/0416B60J5/0426B60J5/0431
Inventor 梅尔·科莫凡特朱利安·罗比雄斯特凡娜·梅萨里奇斯特凡娜·费兰德
Owner PEZHO SITROEN AUTOMOBILS SA