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Flat panel speaker

A loudspeaker and backplane technology, applied in the field of loudspeakers, can solve the problems of limited bandwidth, high processing and manufacturing accuracy, waste time, etc., and achieve the effect of reducing the possibility of being torn or the surface being distorted

Inactive Publication Date: 2003-01-08
DIGITAL SONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The problem with the piezoelectric transducer is that it has only a very limited bandwidth, so its application is limited to a fairly flat frequency response and low sound coloration
The disadvantage of this device is that the complex bending shape of the plate requires high manufacturing precision, which wastes money and time.

Method used

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  • Flat panel speaker
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0033] figure 1 is an exploded schematic view of the first embodiment of the panel speaker 10 . The panel speaker 10 has a back plate 12 with a driver 16, a frame 14 with openings combined with the back plate, a sound booster 24 combined with the driver 16, and a sound booster 24 attached to the booster. Diaphragm (or diaphragm) 18 stretched across frame 14 . The driver vibrates in response to an electrical signal, which in turn vibrates the booster and diaphragm, which produces sound.

[0034] Backplate 12 and frame 14 provide structural support for speaker 10 . They are made of a rigid material that maintains the structural integrity of the loudspeaker during use. Backplane and frame materials can be hard plastic, metal and / or wood.

[0035] In one embodiment, the thickness of the backplate 12 together with the attached and / or integral frame 14 is equal to the sum of the thicknesses of the drivers 16 and boosters 24 . In a preferred embodiment, the thickness of the spea...

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PUM

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Abstract

A loudspeaker having a back plate, a driver attached to the back plate, the driver being responsive to an electrical signal, an enhancer having a neck and a mouth, the neck attached to the driver and movable in accordance with the movement of the driver, a thin film membrane, the membrane attached to the enhancer, the membrane stretched over the frame, a frame for supporting the membrane and maintaining it in a taut state, and a rubber type adhesive for dampening the membrane resonances and for adhering the membrane to the frame. Clarity of sound can be further improved by including a plurality of sound breathers in the back plate of the speaker. For improved sound radiation capability, the size and the shape of the enhancer can be modified in various ways, including a frustoconical, parabolic, or bell-shaped enhancer.

Description

[0001] Refer to related application [0002] This application claims the benefit of US Provisional Application Serial No. 60 / 145,368, filed July 23,1999. technical field [0003] The present invention relates to a loudspeaker, and more particularly to a loudspeaker with a planar structure. Background technique [0004] Dynamic loudspeakers typically consist of a rigid diaphragm combined with an electromagnetic driver assembly. The assembly generally includes a voice coil and a permanent magnet. Such speakers are usually installed in openings in a speaker cabinet or baffle. When a changing current passes through the voice coil, the changing magnetic field generated in the voice coil interacts with the magnetic field of the permanent magnet, causing the vibrating membrane of the speaker to vibrate, and the vibration of the vibrating membrane causes the air to move and produce sound. [0005] The ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R9/04H04R7/02H04R7/04H04R7/22H04R9/02
CPCH04R7/04
Inventor 理查德·盖伊柳川真由纪武士敬子
Owner DIGITAL SONICS
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