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Vibrating diaphragm and preparation method thereof

An intermediate layer, honeycomb hole technology, applied in diaphragm structure, frequency/direction characteristic device, sensor, etc., can solve the problems of low agility, poor high frequency performance, large dome quality, etc., and achieve good frequency response characteristics , The effect of sound pressure level improvement and high bending strength

Inactive Publication Date: 2011-04-20
AAC ACOUSTIC TECH (SHENZHEN) CO LTD +1
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0005] The present invention provides a diaphragm and its manufacturing method in order to solve the problems of excessive mass of the dome of the existing diaphragm, poor high-frequency performance, and low sensitivity:

Method used

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  • Vibrating diaphragm and preparation method thereof
  • Vibrating diaphragm and preparation method thereof
  • Vibrating diaphragm and preparation method thereof

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Embodiment Construction

[0020] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0021] Such as figure 1 , figure 2 and image 3 As shown, the present invention provides a diaphragm 1, the diaphragm 1 includes a dome top 10, the dome top 10 includes a middle layer 102 made of aluminum honeycomb material, and it also includes a Plywood layers 101 on the upper and lower surfaces.

[0022] Such as image 3 and Figure 4 As shown, the honeycomb holes 1021 in the middle layer 102 run through the upper and lower surfaces of the middle layer 102 and are vertical to the dome 10. The honeycomb holes are regular polygons with a wall thickness of 0.02 mm to 1 mm and a side length of 0.1 mm to 20 mm. mm, the height is 0.1 mm to 10 mm, and the aluminum honeycomb density of the middle layer 102 is greater than or equal to 20 kg / m3 and less than or equal to 600 kg / m3. Compared with the previous solid diaphragm or the diaphragm made of gener...

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Abstract

The invention provides a vibrating diaphragm comprising an intermediate ball top, wherein the ball top comprises an intermediate layer made of aluminum honeycomb material and sandwich plates arranged on the upper surface and the lower surface of the intermediate layer; and a honeycomb hole in the intermediate layer penetrates through the upper surface and the lower surface of the intermediate layer and is vertical to the ball top. The vibrating diaphragm is made of lighter material, has higher flexural strength and better high-frequency response characteristics; and the sound pressure level of products is improved greatly.

Description

【Technical field】 [0001] The invention relates to a diaphragm and a manufacturing method thereof. 【Background technique】 [0002] With the continuous improvement of market demand, mobile phones are gradually becoming thinner, and their sound quality is required to be better and better. This requires the acoustic devices in mobile phones to develop towards miniaturization, thinness, and high sound quality. The diaphragm is the core component of acoustic devices such as loudspeakers, and the requirements for its acoustic performance have also increased accordingly. [0003] However, the diaphragms in the prior art are generally made of solid materials. The mass of the top of the diaphragm ball made of this material is too large, the sensitivity of the product is not good enough, and the strength of the top of the ball is not very good at high frequencies. It is easy to form high-frequency peaks and valleys, and the distortion is also large, so it is necessary to increase the ...

Claims

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Application Information

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IPC IPC(8): H04R1/22H04R7/02H04R31/00
Inventor 李林珍韦锁和
Owner AAC ACOUSTIC TECH (SHENZHEN) CO LTD
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