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Manufacturing method of waterproof breathable membrane

A waterproof and breathable membrane and manufacturing method technology, applied in electrical components, instruments, branch equipment and other directions, can solve the problems of limited pressure resistance of organic membranes, and achieve the effect of ensuring strength, ensuring the quality of ventilation and sound transmission, and improving the depth of waterproofing.

Inactive Publication Date: 2021-03-26
深圳市伊声声学科技有限公司
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

However, the compressive capacity of the organic membrane itself is limited, even if it is reinforced with a metal structure, it is difficult to meet the increasingly higher waterproof requirements of more and more new products.

Method used

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  • Manufacturing method of waterproof breathable membrane
  • Manufacturing method of waterproof breathable membrane
  • Manufacturing method of waterproof breathable membrane

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Embodiment Construction

[0029] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0030] Reference herein to "one embodiment" or "an embodiment" refers to a particular feature, structure or characteristic that can be included in at least one implementation of the present invention. "In one embodiment" appearing in different places in this specification does not all refer to the same embodiment, nor is it a separate or selective embodiment that is mutually exclusive with other embodiments. Unless otherwise specified, the words connected, connected, and joined in this document mean that they are electrically connected directly or indirectly.

[0031] The shape of the "hole" referred to in the present invention can be various cross-sectional shapes, such as circular, square, rectangular, etc., and the aperture ref...

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Abstract

The invention provides a manufacturing method of a waterproof breathable film. The manufacturing method comprises the following steps: carrying out die casting by utilizing a die to manufacture a diaphragm with a first layer of holes on one surface, wherein the first layer of holes do not penetrate through the diaphragm; and punching on the other surface of the diaphragm by using a punching process to form a second layer of holes, enabling the first layer of holes to be communicated with the corresponding second layer of holes to form through holes, and enabling each hole of the second layer to be corresponding to one or more first layer of holes. The waterproof breathable film is prepared by combining a die casting method and a punching process. Therefore, the obtained waterproof breathable film not only can ensure the ventilation and sound transmission quality, but also has enough film thickness, so that the strength of the waterproof breathable film can be ensured, and the waterproof depth of the waterproof breathable film is improved.

Description

【Technical field】 [0001] The invention belongs to the field of waterproof and breathable membranes, and more specifically relates to a method for manufacturing a waterproof and breathable membrane. 【Background technique】 [0002] Many existing devices such as smartphones, tablets, and talking watches have waterproof requirements. In order to achieve a better waterproof effect, the best way is to make the device fully enclosed. With the widespread application of wireless charging and wireless earphones, there are fewer and fewer holes on devices such as smartphones, tablets, and talking watches, leaving only the microphone hole for sound pressure input and the hole for sound pressure. Speaker jack for voltage output. This is because in order to allow the sound to be transmitted better, the path of sound transmission cannot be completely closed. How to ensure that the incompletely closed sound transmission path can be effectively waterproof is a problem that needs to be sol...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F1/16H04M1/02B29C39/02B29C45/00B26F1/00
CPCB26F1/00B29C39/02B29C45/00G06F1/1656H04M1/026
Inventor 周宇轩
Owner 深圳市伊声声学科技有限公司
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