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Ribbon type sound film of plane loudspeaker and its manufacturing method

A planar loudspeaker and manufacturing method technology, applied in the direction of diaphragm structure, sensor, electrical components, etc., can solve the problems of low sound pressure, heavy weight, etc., and achieve the effects of good sensitivity, light weight, and simple manufacturing method

Inactive Publication Date: 2006-04-05
BESTON TECH CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Such a design, although it can produce low frequency response, but the weight is too heavy and the sound pressure is low

Method used

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  • Ribbon type sound film of plane loudspeaker and its manufacturing method
  • Ribbon type sound film of plane loudspeaker and its manufacturing method
  • Ribbon type sound film of plane loudspeaker and its manufacturing method

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Embodiment Construction

[0022] Please refer to image 3 , which is a cross-sectional view of an embodiment of the ribbon type planar speaker of the present invention. The composite sound membrane 31 of the loudspeaker includes an upper ribbon-shaped sound membrane, a planar reinforcing structure 36, and a lower ribbon-shaped sound membrane. The upper ribbon-shaped sound film is composed of an upper insulating layer 31A and a metal electrode circuit 33A on the upper side of the upper insulating layer. , the lower ribbon-shaped sound film is composed of the lower insulating layer 31B and the metal electrode circuit 33B on the lower side of the lower insulating layer. The planar reinforcing structure 36 further has a hanging edge structure 37 .

[0023] Wherein, the upper ribbon-shaped sound film and the lower ribbon-shaped sound film are two-layer composite metal films of metal foil / polymer insulation layers 31A, 31B. It first uses a 23 micron thick aluminum foil layer and a 10 micron thick polyimid...

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Abstract

The invention provides a manufacture method for tibial membrane of plane ribbon loudspeaker, which comprises following steps: providing composite metal thin membrane formed by metal layer and macromolecular insulating layer, etching the metal layer to form conductor line and prepare ribbon membrane; besides, using etched fiber as plane reinforcement structure to thermal compression bond with the membrane; then, one obtains the product.

Description

technical field [0001] A vibration system of a planar speaker, especially a sound film of a ribbon type planar speaker (Ribbon Type Planar Speaker) and a manufacturing method thereof. Background technique [0002] The use and development of ribbon-type planar speakers has a considerable history. For example, U.S. patents No. 4,273,968, 4,480,155, 6,104,825, 4,471,173, and 5,021,613 disclose the structure and related content of ribbon-type planar speakers. The structure of a general ribbon-type planar speaker is as follows: figure 1 As shown, the metal electrode circuit 14 is directly formed on the insulating film 15 to form a sound film (Diaphragm) with an electrical circuit. When the speaker is connected to a current signal, the current flowing through the electrical circuit and the magnet on the ribbon-shaped flat speaker 10 The magnetic field of 11 produces electromagnetic force, which causes the sound membrane to vibrate, and the air is pushed to make sound through the ...

Claims

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Application Information

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IPC IPC(8): H04R31/00H04R7/02
Inventor 林建荣
Owner BESTON TECH CORP
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