Vibrating diaphragm base material, preparation method thereof, vibrating diaphragm and loudspeaker

A film base material and material technology, applied in the field of loudspeakers, can solve problems such as offset, and achieve the effects of improving stability, suppressing variation, and suppressing shrinkage

Inactive Publication Date: 2019-07-23
AAC TECH PTE LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

From the figure, we can see that the amplitude of the same point on the product has a significant shift under the test conditions of 20ms and 500ms for the existing diaphragm base material

Method used

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  • Vibrating diaphragm base material, preparation method thereof, vibrating diaphragm and loudspeaker
  • Vibrating diaphragm base material, preparation method thereof, vibrating diaphragm and loudspeaker
  • Vibrating diaphragm base material, preparation method thereof, vibrating diaphragm and loudspeaker

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Embodiment Construction

[0031] Below, the present invention will be further described in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of not conflicting, the various embodiments described below or the technical features can be combined arbitrarily to form new embodiments. .

[0032] Such as Figure 2-5 As shown, a vibrating film substrate 1 provided by the embodiment of the present invention includes a first adhesive layer 131, a second adhesive layer 132, a first polymer material layer 111 made of a polymer material, and a polymer material layer 111 made of a polymer material. The second polymer material layer 112 made of high molecular weight material and the porous damping material layer 12 made of porous damping material, the porous damping material layer 12 has a first side 122 and a second side 123 arranged opposite to each other, the first polymer material The layer 111 is bonded to the first side 122 through the fi...

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PUM

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Abstract

The invention discloses a vibrating diaphragm base material, a preparation method thereof, a vibrating diaphragm and a loudspeaker. the vibrating diaphragm base material comprises a first bonding layer, a second bonding layer, a first high polymer material layer made of a high polymer material, a second high polymer material layer made of a high polymer material and a porous damping material layermade of a porous damping material; the porous damping material layer is provided with a first side surface and a second side surface which are arranged back to back, the first high polymer material layer is bonded on the first side surface through the first bonding layer, and the second high polymer material layer is bonded on the second side surface through the second bonding layer. The vibrating diaphragm base material has the beneficial effects that (1) the size of a product prepared from the vibrating diaphragm base material can be kept consistent; and (2) the vibrating diaphragm base material can inhibit and improve the variation of the performance of a high polymer material under a high-temperature condition, so that the amplitude of a loudspeaker and other products adopting the vibrating diaphragm base material is slightly deviated along with the temperature rise, and the stability of the performance of the product is improved.

Description

technical field [0001] The invention relates to the field of acoustic equipment, in particular to a diaphragm base material, a method for preparing the diaphragm base material, a diaphragm prepared by using the diaphragm base material, and a loudspeaker with the diaphragm. Background technique [0002] At present, the base material of the vibrating film is generally made of a polymer material with a small elastic modulus, and these polymer materials have a small elastic modulus and relatively good elasticity. However, because these polymer materials are not resistant to high temperatures, on some products such as speakers, when the temperature rises to a certain level (the product continues to vibrate or do reliability tests), the amplitude of the product will become larger and larger, resulting in offset, resulting in Product swing can directly lead to failure of product performance. figure 1 In order to use the existing diaphragm base material at different temperatures, v...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R7/10B32B27/34B32B27/28B32B27/42B32B27/36B32B27/40B32B27/08B32B25/20B32B25/08B32B7/12B32B3/24B32B37/12
CPCB32B3/266B32B7/12B32B25/08B32B25/20B32B27/08B32B27/285B32B27/34B32B27/36B32B27/40B32B27/42B32B37/1284B32B2307/734H04R7/10B32B3/26B32B7/02B32B27/288B32B2250/03B32B2250/24B32B2250/40B32B2274/00B32B2307/102B32B2307/51B32B2457/00H04R31/003H04R2307/025B29L2031/38B32B2307/56B32B2371/00B32B7/05H04R1/02H04R7/06
Inventor 梁平赵彬杨彬彬
Owner AAC TECH PTE LTD
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