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A method of using a mold to manufacture a waterproof and breathable membrane

A waterproof and breathable membrane and mold manufacturing technology, applied in the field of acoustics, can solve the problems of limited compressive capacity of organic membranes, and achieve the effects of ensuring strength, ensuring the quality of ventilation and sound transmission, and improving the depth of waterproofing.

Inactive Publication Date: 2021-07-20
深圳市伊声声学科技有限公司
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  • Abstract
  • Description
  • Claims
  • 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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  • A method of using a mold to manufacture a waterproof and breathable membrane
  • A method of using a mold to manufacture a waterproof and breathable membrane
  • A method of using a mold to manufacture a waterproof and 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 method for manufacturing a waterproof and gas-permeable membrane by using a mold. The mold includes a substrate and a plurality of mutually spaced pillars fixed on the first surface of the substrate. The cross-sectional size of the pillars is in the order of microns. The method includes: carrying out injection molding, injecting a filling material into the mold, so that the filling material fills the space surrounded by the substrate and a plurality of columns; performing demoulding, and injecting the filling material after injection molding from the Detachment in the mold, in which all or part of the cylinders are separated from the substrate and remain in the formed filling material, thereby obtaining a membrane; removing the remaining cylinders in the membrane to obtain a waterproof and breathable membrane. The waterproof and gas-permeable membrane obtained in the present invention can not only ensure the quality of ventilation and sound, but also have sufficient film thickness, so as to ensure the strength of the waterproof and gas-permeable membrane, so as to improve its waterproof depth.

Description

【Technical field】 [0001] The invention belongs to the field of acoustics such as microphones, loudspeakers and buzzers, and more specifically relates to a method for manufacturing a waterproof and breathable membrane by using a mold. 【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 waterpro...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C33/00B29C33/38B29L7/00B29L28/00
CPCB29C33/0033B29C33/38B29C33/3842B29L2007/00B29L2028/00
Inventor 周宇轩
Owner 深圳市伊声声学科技有限公司
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