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Silica gel diaphragm, preparation method, and sounding part

A technology of silicone diaphragm and sound-generating components, which is applied in the field of loudspeakers, can solve the problems of high cost, complex molding, and low efficiency, and achieve better and better fidelity effects

Inactive Publication Date: 2016-10-12
SHENZHEN MOMA CLEVER CHEM TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, small silicone parts are usually prepared by injection molding, that is, by injecting liquid silicone into a designed hot mold to undergo a curing reaction, and then using a cold runner system to cool and form it. This preparation method is complex and It leads to high cost, low efficiency, unstable process, and difficulty in large-scale preparation, which makes it difficult to meet the large-scale preparation of speaker diaphragms

Method used

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  • Silica gel diaphragm, preparation method, and sounding part
  • Silica gel diaphragm, preparation method, and sounding part
  • Silica gel diaphragm, preparation method, and sounding part

Examples

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preparation example Construction

[0033] Step 1: The preparation method of the silica gel diaphragm comprises the following steps:

[0034] Step 2: providing a silica gel membrane 4;

[0035] Step 3: The silicone film 4 is continuously introduced into the mold cavity 31 of the molding machine 3;

[0036] Step 4: Close the mold and control the mold temperature;

[0037] Step 5: Adjust the molding pressure and maintain the pressure for a period of time, so as to realize the secondary molding of the silicone membrane 4;

[0038] Step 6: Take out the silicone diaphragm 1 after forming, the thickness of the silica gel diaphragm 1 is not uniform.

[0039] It can be understood that the silica gel film used in the embodiment of the present invention is a substrate-free silica gel film, and the method for preparing the silica gel diaphragm used in the embodiment of the present invention is to perform secondary molding with the substrate-free silica gel film that has been preliminarily manufactured. Methods.

[0040...

Embodiment 1

[0050] This embodiment provides a method for preparing a silica gel diaphragm, which includes the following steps in sequence:

[0051] Step 1: providing the formed silicone film 4;

[0052] Step 2: introducing the formed silicone film 4 into the mold cavity 31 of the molding machine 3 in a continuous manner, so that the silicone film 4 is kept flat in the mold cavity 31;

[0053] Step 3: Clamp the upper and lower molds or left and right molds, and control the temperature of the upper and lower molds or the left and right molds to 155°C;

[0054] Step 4: Adjust the molding pressure to 20MPa;

[0055] Step 5: Hold the pressure for 1 minute;

[0056] Step 6: Take out the molding and prepare the silicone diaphragm 11 .

[0057] Such as image 3As shown, the silicone diaphragm 1 after secondary molding can be fixed on the sound-generating part 2 of the electronic speaker. Further, the processed silicone diaphragm 1 can be fixed in the cavity of the sound-generating part 2 of ...

Embodiment 2

[0059] This embodiment provides a method for preparing a silica gel diaphragm, which includes the following steps in sequence:

[0060] Step 1: providing the formed silicone film 4;

[0061] Step 2: introducing the formed silicone film 4 into the mold cavity 31 of the molding machine 3 in a continuous manner, so that the silicone film 4 is kept flat in the mold cavity 31;

[0062] Step 3: Clamp the upper and lower molds or left and right molds, and control the temperature of the upper and lower molds or the left and right molds to 160°C;

[0063] Step 4: Adjust the molding pressure to 21MPa;

[0064] Step 5: Hold the pressure for 1 minute;

[0065] Step 6: Take out the molding and prepare the silicone diaphragm 1 .

[0066] Such as image 3 As shown, the silicone diaphragm 1 after secondary molding can be fixed on the sound-generating part 2 of the electronic speaker. Further, the processed silicone diaphragm 1 can be fixed in the cavity of the sound-generating part 2 of ...

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Abstract

The invention provides a preparation method for silica gel diaphragms. The preparation method comprises the steps of providing silica membrane; continuously importing the silica gel membrane into the mould cavities of moulding machines; closing the moulds and controlling the temperature of the moulds; adjusting moulding pressure, and keeping the pressure for a period of time; and taking out the silica gel diaphragms after moulding is finished. The silica gel diaphragms are nonuniform in thickness. The preparation method for the silica gel diaphragms is simple in technology operation, and convenient and fast in moulding. According to the method, large-scale preparation can be realized, and high performance is displayed in different audios.

Description

technical field [0001] The invention relates to the technical field of loudspeakers, in particular to a silicone diaphragm, a preparation method of the silica gel diaphragm and a sound-generating component using the silica gel diaphragm. Background technique [0002] The loudspeaker is an important component of portable electronic equipment. It is used to convert the sound wave electrical signal into a sound signal. conversion quality. The diaphragm of the existing loudspeaker is generally made of materials such as PET and PEEK. Silicone elastomer is a fatigue-resistant, aging-resistant, and high-temperature-resistant material. Its chemical composition and physical structure determine that it has many characteristics that other similar materials cannot replace: good damping, good thermal stability, stable chemical properties, It has high mechanical strength, etc., so silica gel can replace PET, PEEK and other materials as diaphragms, and has a good prospect. [0003] At p...

Claims

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Application Information

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IPC IPC(8): H04R31/00
CPCH04R31/00H04R31/003
Inventor 许彩霞陈春元孙金永
Owner SHENZHEN MOMA CLEVER CHEM TECH CO LTD
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