Sound-generating device for vehicles and vehicles containing them

The sound-generating device for vehicles utilizes the interior material and glass window as a vibrating plate with piezoelectric elements to produce realistic and stereo sound, overcoming space constraints and enhancing acoustic performance.

DE102021111958B4Active Publication Date: 2026-05-21LG DISPLAY CO LTD
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Patent Information

Authority / Receiving Office
DE · DE
Patent Type
Patents
Current Assignee / Owner
LG DISPLAY CO LTD
Filing Date
2021-05-07
Publication Date
2026-05-21

AI Technical Summary

Technical Problem

Existing vehicle sound systems face limitations in producing realistic sound or multi-channel stereo sound due to speaker size and space constraints, and existing technologies do not effectively utilize vehicle interior materials and glass windows for sound generation.

Method used

A sound-generating device for vehicles that uses the vehicle's interior material and glass window as a vibrating plate, incorporating piezoelectric vibration sections and connecting elements to emit sound, with a sound generator connected via adhesive elements to the vehicle structure.

Benefits of technology

Enables the emission of realistic sound and stereo sound through the vehicle's interior material and glass window, enhancing acoustic performance without the need for additional speakers.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

Sound-generating device (30) for vehicles (10) comprising the following: a sound-generating device (31) which is covered by an interior material (130) of a vehicle (10), wherein the sound-generating device (31) is configured to cause the vehicle interior material (130) to vibrate, wherein the sound-generating device (31) comprises a sound generator (310) comprising the following: a basic frame (311); a coil carrier (313) on the base frame (311) which is configured to be connected to the vehicle interior material (130); and a coil (314) wound around the coil carrier (313), wherein the sound-generating device (31) comprises the following: a support element (330) which is a plate and is configured to be supported by a vehicle structure (110) of the vehicle (10) and to support the base frame (311) of the sound generator (310); and a connecting element (340) which is arranged on the support element (330) such that it surrounds the sound generator (310), wherein the connecting element (340) is configured to be connected to the vehicle interior material (130).
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