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

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

Active Publication Date: 2019-07-12
AAC TECH PTE LTD
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  • 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 50ms for the existing diaphragm 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

[0030] 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. .

[0031] Such as Figure 2-5 As shown, a diaphragm substrate 1 provided by an embodiment of the present invention includes a polymer material layer 11 made of a polymer material and a porous damping material layer 12 made of a porous damping material group. The porous damping material layer 12 embedded in the polymer material layer 11 . Because the porous damping material layer 12 is added to the diaphragm base material 1 of this embodiment, the porous damping material has a higher structural strength and can suppress the shrinkage of the polymer material, thus ensuring the use of the diaphragm base material 1 of this embodiment The size of the manufac...

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Abstract

The invention discloses a vibrating diaphragm base material and a preparation method thereof, a vibrating diaphragm and a loudspeaker, the vibrating diaphragm base material comprises a high polymer material layer made of a high polymer material and a porous damping material layer made of a porous damping material, and the porous damping material layer is embedded in the high polymer material layer. The vibrating diaphragm base material has the beneficial effects that (1) the porous damping material has relatively high structural strength and can inhibit the contractibility of a high polymer material, so that 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 ofthe 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 diaphragm materials are generally single-layer or composite materials such as silicone rubber, thermoplastic elastomer (TPE), thermoplastic polyurethane elastomer rubber (TPU), etc. These polymer materials have a small elastic modulus and relatively good elasticity. Some diaphragms are more commonly used in the preparation. However, because these polymer materials are not resistant to high temperatures, on some products, when the temperature rises to a certain level (the product continues to vibrate or do a reliability test), the amplitude of the product will become larger and larger, resulting in an offset, causing the product to sway , directly lead to produ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04R7/10H04R7/26H04R31/00
CPCH04R7/10H04R7/26H04R31/003H04R2307/025H04R9/025H04R9/06H04R2400/11
Inventor 梁平赵彬钟志威
Owner AAC TECH PTE LTD
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