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Speaker diaphragm, speaker using said diaphragm, and speaker diaphragm manufacturing method

A manufacturing method and speaker technology, applied in the sensor, diaphragm structure, fiber diaphragm and other directions, can solve the problem that the inorganic fiber woven cloth 201 and the natural fiber non-woven fabric 202 cannot be integrated, internal loss is difficult, and the sound quality of the speaker cannot be fully realized. Improve and other problems to achieve the effect of increasing Young's modulus, increasing internal loss, and improving sound quality

Active Publication Date: 2010-12-22
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, in the above-mentioned conventional loudspeaker diaphragm 204, since only the inorganic fiber woven fabric 201 and the natural fiber nonwoven fabric 202 having different properties are bonded together, it cannot be said that the inorganic fiber woven fabric 201 and the natural fiber nonwoven fabric are 202 fully integrated
Therefore, in the conventional loudspeaker diaphragm 204, it is difficult to make full use of the large Young's modulus of the inorganic fiber woven fabric 201 and the large internal loss of the natural fiber nonwoven fabric 202, and it is impossible to fully realize the sound quality of the speaker. sound quality improvement

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Speaker diaphragm, speaker using said diaphragm, and speaker diaphragm manufacturing method
  • Speaker diaphragm, speaker using said diaphragm, and speaker diaphragm manufacturing method
  • Speaker diaphragm, speaker using said diaphragm, and speaker diaphragm manufacturing method

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Embodiment Construction

[0057] Next, the configuration of an embodiment of the present invention will be described with reference to the drawings.

[0058] (Embodiment 1)

[0059] Fig. 1 is a perspective view of a speaker diaphragm according to Embodiment 1 of the present invention. In FIG. 1(A) , speaker diaphragm 5 has a two-layer structure of a fabric layer 6 and a paper layer 7 . The woven fabric layer 6 is formed by weaving two kinds of weaving yarns 9 , the warp yarns 8 a and the weft yarns 8 b , in a grid pattern, and the grid stripes are exposed on the surface of the speaker diaphragm 5 . A thermosetting resin (not shown) exists inside and outside these longitudinal yarns 8a and weft yarns 8b, and by thermal curing of the thermosetting resin, the longitudinal yarns 8a and weft yarns 8b themselves and are formed by weaving them together. The fabric layer 6 is in a cured state. In addition, the fabric layer 6 has a structure containing at least one of high-strength fibers such as aramid fibe...

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Abstract

Disclosed in the present invention is a speaker diaphragm equipped with a woven fabric layer impregnated with a thermosetting resin that is thermally cured and a paper layer integrated by being laminated on the back side of the woven fabric layer. Since the fluff of the paper layer filling the mesh of the woven fabric layer intertwines with the yarns of the woven fabric layer from the front surface side of the woven fabric layer and is fixed by the thermosetting resin, the paper layer fills and is integrated into the mesh of the woven fabric layer so that the internal loss and the Young's modulus of the speaker diaphragm can be increased. As a result, the sound quality of the speaker can be improved.

Description

technical field [0001] The present invention relates to a loudspeaker diaphragm and a loudspeaker using the same. Background technique [0002] In order for the speaker to reproduce sound with excellent sound quality, the speaker diaphragm used in the speaker needs to have both a large Young's modulus and moderate internal loss. [0003] Figure 17 It is a perspective view of a conventional loudspeaker diaphragm. exist Figure 17 Among them, the loudspeaker diaphragm 204 is composed of a laminate 203 in which an inorganic fiber woven fabric 201 and a natural fiber nonwoven fabric 202 on the lower surface thereof are laminated. Both Young's modulus and internal loss are excellent by laminating inorganic fiber woven fabric 201 with small internal loss and high Young's modulus and natural fiber nonwoven fabric 202 with small Young's modulus and large internal loss characteristics. This technical content is disclosed by patent document 1. [0004] However, in the above-menti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R7/02H04R31/00
CPCH04R2307/021H04R7/125H04R31/003H04R2307/029
Inventor 舟桥修
Owner PANASONIC CORP
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