CN214851970U

CN214851970U - Waterproof exhaust ditch structure of flexible circuit board

Info

Publication number: CN214851970U
Application number: CN202120635701.8U
Authority: CN
Inventors: 彭云胜
Original assignee: Suzhou Menhow Electronic Co ltd
Current assignee: Suzhou Menhow Electronic Co ltd
Priority date: 2021-03-29
Filing date: 2021-03-29
Publication date: 2021-11-23
Anticipated expiration: 2031-03-29

Abstract

A waterproof exhaust channel structure of a flexible circuit board comprises an upper circuit, a lower circuit, a key, an isolation layer and an exhaust channel, wherein the key is arranged between the upper circuit and the lower circuit, and the isolation layer is arranged between the upper circuit and the lower circuit and wraps the periphery of the key; one end of the exhaust channel is communicated to the inside of the key, and the other end of the exhaust channel penetrates through the isolation layer and is communicated to the outside of the product; the waterproof exhaust ditch structure of flexible printed circuit board of this scheme design sets up exhaust passage on the waterproof glue film of printing, can improve the air discharge of product when guaranteeing product button waterproof performance, avoids appearing product button airlock phenomenon, and the channel design of a plurality of rectangular bend shapes can avoid aqueous vapor and drop of water to enter into the product through the exhaust ditch completely simultaneously originally internally.

Description

Waterproof exhaust ditch structure of flexible circuit board

Technical Field

The utility model belongs to the technical field of flexible film circuit product, concretely relates to flexible circuit board waterproof exhaust ditch structure.

Background

The flexible film circuit product is composed of three layers of materials, the three layers of materials are adhered together by printing waterproof glue, and in order to prevent water and dust, the periphery of the product and the hole part of a mechanism are all added with the printing waterproof glue to form a sealing shape, but the inside of the product is easily closed by air, so that defects are caused.

Therefore, it is necessary to design a waterproof and air-exhausting channel structure of a flexible printed circuit to solve the above-mentioned technical problems.

Disclosure of Invention

In order to overcome the defects in the prior art, the utility model aims to provide a waterproof and exhaust ditch structure of a flexible printed circuit.

In order to achieve the above objects and other related objects, the present invention provides a technical solution: a waterproof exhaust channel structure of a flexible circuit board comprises an upper circuit, a lower circuit, a key, an isolation layer and an exhaust channel, wherein the key is arranged between the upper circuit and the lower circuit, and the isolation layer is arranged between the upper circuit and the lower circuit and wraps the periphery of the key; one end of the exhaust channel is communicated to the inside of the key, and the other end of the exhaust channel penetrates through the isolation layer to be communicated to the outside of the product.

Preferably, the exhaust passage is specifically an exhaust passage composed of a plurality of S-shaped long bends.

Preferably, the isolation layer is a waterproof glue layer.

Because of the application of the technical scheme, compared with the prior art, the utility model the advantage that has as follows:

the waterproof exhaust ditch structure of flexible printed circuit board of this scheme design sets up exhaust passage on the waterproof glue film of printing, can improve the air discharge of product when guaranteeing product button waterproof performance, avoids appearing product button airlock phenomenon, and the channel design of a plurality of rectangular bend shapes can avoid aqueous vapor and drop of water to enter into the product through the exhaust ditch completely simultaneously originally internally.

Drawings

Fig. 1 is an exploded view of the overall structure of the product.

In the above figures, the upper circuit 1, the lower circuit 2, the key 3, the isolation layer 4 and the exhaust channel 5.

Detailed Description

The following description is provided for illustrative purposes, and other advantages and features of the present invention will become apparent to those skilled in the art from the following detailed description.

Please refer to fig. 1. It should be understood that in the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship that the product of the present invention is usually placed when in use, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element to which the term refers must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance. The terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should be further noted that, unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may include, for example, a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection via an intermediate medium, and a connection between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1, a flexible printed circuit waterproof exhaust duct structure includes an upper circuit 1, a lower circuit 2, a key 3, an isolation layer 4 and an exhaust channel 5, where the key 3 is disposed between the upper circuit 1 and the lower circuit, and the isolation layer 4 is disposed between the upper circuit 1 and the lower circuit 2 and wraps around the key 3; one end of the exhaust channel 5 is communicated to the inside of the key 3, and the other end of the exhaust channel 5 penetrates through the isolation layer 4 to be communicated to the outside of a product; the exhaust channel 5 is specifically an exhaust channel 5 consisting of a plurality of S-shaped long curved channels; the isolation layer 4 is specifically a waterproof adhesive layer; the width of the exhaust channel 5 is 0.3 mm-0.4 mm, and the aperture is 2 mm.

The beneficial effect of this embodiment does: the waterproof exhaust duct structure of a flexible printed circuit board of this scheme design sets up exhaust passage 5 on the waterproof glue film of printing, can improve the air discharge of product when guaranteeing 3 waterproof performance of product button, avoids appearing the 3 airlock phenomena of product button, and the channel design of a plurality of rectangular bend shapes has avoided aqueous vapor and drop of water to enter into the product through the exhaust duct completely simultaneously originally internally.

The above embodiments are merely illustrative of the principles and effects of the present invention, and are not to be construed as limiting the invention. Modifications and variations can be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which may be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims

1. The utility model provides a waterproof exhaust ditch structure of flexible line way board which characterized in that: the key is arranged between the upper line and the lower line, and the isolation layer is arranged between the upper line and the lower line and wraps the periphery of the key; one end of the exhaust channel is communicated to the inside of the key, and the other end of the exhaust channel penetrates through the isolation layer to be communicated to the outside of the product.

2. The waterproof exhaust duct structure of the flexible printed circuit board of claim 1, wherein: the exhaust passage is specifically an exhaust passage consisting of a plurality of S-shaped long curved channels.

3. The waterproof exhaust duct structure of the flexible printed circuit board of claim 1, wherein: the isolation layer is specifically a waterproof glue layer.