CN215377266U - Waterproof notebook keyboard circuit - Google Patents

Abstract

The utility model discloses a waterproof notebook keyboard circuit, which comprises an upper PET film, a middle PET film and a lower PET film which are sequentially arranged, wherein a silver paste circuit, waterproof glue and key silver points corresponding to the silver paste circuit are correspondingly arranged on the upper PET film and the lower PET film, silver point openings corresponding to the key silver points are arranged on the middle PET film, a position avoiding groove is correspondingly arranged on the periphery of the key silver points, water glue corresponding to the position avoiding groove is arranged on the periphery of the silver point openings, S-shaped external air passages are correspondingly arranged on the upper PET film and the lower PET film, waterproof glue printing is selected through the design on the periphery of a key area and the design of an independent air passage, and the finishing waterproof performance of the keyboard circuit is improved after the keyboard circuit is assembled.

Description

Waterproof notebook keyboard circuit

Technical Field

The utility model relates to the technical field of notebook keyboard circuits, in particular to a waterproof notebook keyboard circuit.

Background

In recent years, due to the rapid development of the information industry, many users may use portable information devices such as notebook computers, mobile phones, or personal digital assistants in different environments.

Notebook computers become office tools which people like to use, keyboards of the notebook computers are key parts of the notebook computers, are man-machine interfaces, are used as media and conversation interfaces for transmitting and exchanging information between people and computers, can usually input character information such as A-Z and the like at least, and belong to important components of computer systems.

The keyboard comprises a contact electrode for key transmission and a circuit structure for connecting the electrode, so that the requirement on waterproofness is particularly high, most of the existing waterproof keyboards have complex structures, complex production processes and high production cost.

SUMMERY OF THE UTILITY MODEL

In order to comprehensively solve the problems, particularly the defects in the prior art, the utility model provides a waterproof notebook keyboard circuit which can comprehensively solve the problems.

In order to achieve the purpose, the utility model adopts the following technical means:

the utility model provides a waterproof notebook keyboard circuit, is including the upper PET membrane, middle level PET membrane, the lower floor PET membrane that set gradually, correspond on upper PET membrane, the lower floor PET membrane and be provided with silver thick liquid circuit, waterproof glue, the button silver point that corresponds with silver thick liquid circuit, be provided with the silver point trompil that corresponds with button silver point on the middle level PET membrane, the correspondence all around of button silver point is provided with keeps away the position groove, be provided with all around of silver point trompil and keep away the water glue that the position groove corresponds, it is provided with the external air flue of S type to correspond on upper PET membrane, the lower floor PET membrane.

Further, the distance between the water gel and the silver point opening is larger than 1 mm.

The waterproof structure has the beneficial effects that the waterproof requirement can be well met.

Further, the total length of the S-shaped external air flue is more than 50 mm.

The air exhaust and rebound device has the beneficial effects that the requirement of air exhaust and rebound of the key can be met, and meanwhile, the requirement of preventing water and air from flowing back can also be met.

Furthermore, a plurality of frame holes corresponding to the key silver points are formed around the avoiding groove.

The beneficial effects are that, be favorable to PET membrane surface drainage, avoid appearing the problem that keyboard periphery intake became invalid.

Furthermore, the S-shaped outer air channel is communicated with a plurality of frame holes through the air exhaust and air inlet.

The button air exhaust resilience can be well met, and the water splashing prevention performance can be improved.

Furthermore, the button silver point is connected with a connecting wire.

The beneficial effect is that, the key signal input can be better realized.

Furthermore, silver thick liquid circuit, waterproof glue are printed on upper PET membrane, lower floor's PET membrane.

The beneficial effects are that the manufacturing is more convenient and the production efficiency is higher.

The utility model has the beneficial effects that: the keyboard circuit is simple in structure, waterproof glue printing is selected through the design of the periphery of the key area and the design of the independent air passage, and the finishing waterproof performance of the keyboard circuit is improved after the keyboard circuit is assembled.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic structural view of an upper PET film and a lower PET film of the present invention.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

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 orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1-2, this embodiment provides a waterproof notebook keyboard circuit, including upper PET film 1, middle level PET film 2, the PET film 3 of lower floor that sets gradually, correspond on upper PET film 1, the PET film 3 of lower floor and be provided with silver thick liquid circuit, waterproof glue, with the button silver point 4 that silver thick liquid circuit corresponds, be provided with the silver point trompil that corresponds with button silver point 4 on the PET film 2 of middle level, the correspondence all around of button silver point 4 is provided with keeps away a groove 5, be provided with around the silver point trompil and keep away the water glue that a groove 5 corresponds, it is provided with the external air flue 6 of S type to correspond on upper PET film 1, the PET film 3 of lower floor.

The distance between the water gel and the silver point opening is larger than 1mm, and the waterproof requirement can be well met. The S-shaped external air duct 6 is larger than 50mm in total length, can meet the requirement of key exhaust resilience and can meet the requirement of preventing water from flowing backwards. Keep away the position groove 5 be provided with a plurality of frame holes 7 that correspond with button silver point 4 all around, be favorable to PET membrane surface drainage, avoid appearing the problem that the keyboard periphery was intake inefficacy. The S-shaped external air channel 6 is communicated with the plurality of frame holes 7 through the air discharging and inlet 8, so that the requirement of key exhaust resilience can be well met, and the water splashing prevention performance can be improved. The button silver point 4 is connected with a connecting wire 9, which is beneficial to better realizing the button signal input. Silver thick liquid circuit, waterproof glue printing are more convenient on upper PET membrane 1, lower floor's PET membrane 3, the preparation, and production efficiency is higher.

When in specific use, the following steps are adopted:

1. printing a silver paste circuit on the upper PET film, and printing waterproof glue;

2. performing silver point opening design on the middle layer PET, and combining the upper layer PET with the middle layer PET;

3. printing silver paste lines on the lower PET film, printing waterproof glue, and combining the combined upper layer, the middle layer and the lower layer;

4. avoiding positions are arranged around the silver points to provide a space for the upper and lower silver points to contact;

5. the periphery of the silver point holes is designed with water gel, and the distance between the water gel and the appearance hole position is at least more than 1mm, so that the waterproof requirement is met;

6. an S-shaped external air channel is designed, the total length of the S-shaped external air channel can meet the requirement that the key is more than 50mm in exhaust resilience and the requirement that water vapor does not flow back can be met;

through research and detection, the waterproof performance for 24 hours under the water depth pressure of 3CM can be achieved through the waterproof glue design of the key area and the special design of the air guide groove through a circuit combination process.

This embodiment simple structure through the design to design around the key region and independent air flue, selects waterproof glue printing, through the arrangement waterproof performance who improves the keyboard circuit after the equipment.

The present invention is illustrated by way of example and not by way of limitation. It will be apparent to those skilled in the art that other variations and modifications may be made in the foregoing disclosure without departing from the spirit or essential characteristics of all embodiments, and that all changes and modifications apparent from the above teachings are within the scope of the utility model.

Claims (7)

1. The utility model provides a waterproof notebook keyboard circuit, its characterized in that, including upper PET membrane (1), middle level PET membrane (2), lower floor PET membrane (3) that set gradually, correspond on upper PET membrane (1), lower floor PET membrane (3) and be provided with silver thick liquid circuit, waterproof glue, with button silver point (4) that silver thick liquid circuit corresponds, be provided with the silver point trompil that corresponds with button silver point (4) on middle level PET membrane (2), the correspondence all around of button silver point (4) is provided with keeps away a groove (5), be provided with all around of silver point trompil and keep away the water glue that a groove (5) correspond, it is provided with S type external air flue (6) to correspond on upper PET membrane (1), lower floor PET membrane (3).

2. The waterproof notebook keyboard circuit of claim 1, wherein the distance between the water gel and the silver point opening is greater than 1 mm.

3. The waterproof notebook keyboard circuit according to claim 1, wherein the S-shaped outer air duct (6) has an overall length of more than 50 mm.

4. The waterproof notebook keyboard circuit according to claim 1, wherein a plurality of frame holes (7) corresponding to the key silver dots (4) are arranged around the avoiding groove (5).

5. The waterproof notebook keyboard circuit according to claim 4, wherein the S-shaped outer air channel (6) is ventilated with a plurality of frame holes (7) through the air exhaust and inlet ports (8).

6. The waterproof notebook keyboard circuit according to claim 1, wherein the key silver dots (4) are connected with a connecting wire (9).

7. The waterproof notebook keyboard circuit according to claim 1, wherein the silver paste circuit and the waterproof adhesive are printed on the upper layer PET film (1) and the lower layer PET film (3).

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