CN108074768B - Dust removal button with sealing washer - Google Patents

Abstract

The present invention discloses a dust removal button with a sealing ring, comprising a cylindrical main shell for placing a button switch, a button cap, a button column arranged on the bottom surface of the button cap and a sealing disk for closing the main shell, wherein the sealing disk is provided with a through hole for allowing the button column to pass through, and a circle of walls is extended downward from the bottom surface of the main shell; a plurality of air passages are equidistantly arranged around the center in the wall of the main shell, and the air passages are communicated with the bottom surface; the top surface of the main shell is a slanted wall with a high outer side and a low inner side; a cavity is formed by an innovative piezoelectric material, which deforms back and forth to form a certain tiny airflow, and the button rod is blown through the air passage, so as to keep the button rod dry and blow away dust to prevent dust accumulation.

Description

Dust removal button with sealing ring

technical field

The invention relates to a dust removal key provided with a sealing ring.

Background technique

Buttons are used in many products and devices, such as keyboards. Keyboard buttons are the core components of keyboards. A high-quality keyboard cannot be separated from high-quality buttons. At present, there are many types of products in the keyboard market, and the technology tends to be more complex, especially the key technology is also constantly improving. Among them, the important indicators for evaluating the keyboard are the quality of key comfort, noise and dust removal performance. Due to the continuous use of keyboards on the market, dust will accumulate on the key rods and form a certain damping phenomenon, affecting the user experience. At present, many keyboard keys solve this problem by adding key membranes. But it is not ideal, because the study found that the accumulation of dust is not only caused by long-term use of dust accumulation, but also the key rod of the keyboard is in a closed environment, resulting in poor air circulation, increased humidity, and increased microorganisms, which exacerbates the dust. gathering.

Contents of the invention

The object of the present invention is to overcome the above-mentioned shortcomings, and provide a dust removal key provided with a sealing ring.

In order to achieve the above object, the specific solution of the present invention is as follows: a dust removal button provided with a sealing ring, including a cylindrical main casing for placing a button switch, a button cap, a button post arranged on the bottom surface of the button cap, and a As for the sealing disk that closes the main casing, there is a via hole for the button column to pass through on the sealing disk, and a circle of surrounding walls extends downward from the bottom of the main casing; the walls of the main casing are equidistant around the center. There are a plurality of air passages, the air passages communicate with the bottom surface, the top surface of the main housing is an inclined wall, and the outer side is higher and the inner side is lower;

It also includes a disk-shaped elastic sheet installed in the enclosure, the bottom of the elastic sheet is covered with a piezoelectric material sheet; the elastic sheet, the bottom of the main casing and the enclosure together form an air cavity.

Wherein, two pin via holes are also provided on the outer wall of the main housing.

Wherein, the sheet of piezoelectric material is circular and has a diameter smaller than that of the elastic sheet.

Wherein, the key cap and the key column are integrally formed. When the elastic sheet and the piezoelectric material sheet are installed, the bottom surface of the wall is lower than the bottom surface of the piezoelectric material sheet. A sealing ring is provided between the outer surface of the sealing disc and the inner wall of the main casing.

The beneficial effects of the present invention are as follows: a cavity is formed by the innovative piezoelectric material, which is deformed back and forth to form a certain tiny air flow, and the key rod is blown through the air passage, so as to keep the key rod dry and blow dust to prevent Dust collects.

Description of drawings

Fig. 1 is an exploded perspective view of the present invention;

Fig. 2 is an exploded perspective view of another viewing angle of the present invention;

Fig. 3 is a sectional view of the present invention;

Explanation of reference numerals among Fig. 1 to Fig. 3:

1-main housing; 11-airway; 12-pin via; 13-wall; 2-button cap; 21-button post; 3-sealing disk;

Detailed ways

The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments, and the implementation scope of the present invention is not limited thereto.

As shown in Figures 1 to 3, a dust removal button provided with a sealing ring according to this embodiment includes a cylindrical main housing 1 for placing a button switch, a button cap 2, and a button cap 2 The key column 21 on the bottom surface and the sealing plate 3 for closing the main housing 1, the sealing plate 3 is provided with a via hole for the key column 21 to pass through, and a circle of surrounding walls 13 extends downward from the bottom of the main housing 1; The wall of the main housing 1 is equidistantly provided with a plurality of air passages 11 around the center, the air passages 11 communicate with the bottom surface, the top surface of the main housing 1 is a slope wall, and the outer side is high and the inner side is low; It includes a disk-shaped elastic sheet 4 installed in the enclosure wall 13, and the bottom surface of the elastic sheet 4 is covered with a piezoelectric material sheet 5; the elastic sheet 4, the bottom surface of the main housing 1 and the enclosure wall 13 together form an air cavity.

In specific work, you can set it to blow air every time you press it, or you can set a unified cleaning mode to blow air uniformly. The specific principle is that the deformation of the piezoelectric material drives the deformation of the elastic sheet 4 to form a pressurized air flow. Since the top surface of the main housing 1 is an inclined wall, the air flow is blown out from the air channel 11 and directly blows on the key column 21, so as to keep the key Drying of rods to blow dust and prevent dust from accumulating

A cavity is formed by an innovative piezoelectric material, which is deformed back and forth to form a certain tiny airflow, and the key rod is blown through the air channel 11, so as to keep the key rod dry and blow dust to prevent dust accumulation.

In the dust-removing button provided with a sealing ring in this embodiment, two stitch holes 12 are provided on the outer wall of the main housing 1 .

In the dust-removing button provided with a sealing ring in this embodiment, the piezoelectric material sheet 5 is circular and has a diameter smaller than that of the elastic sheet 4 . In the dust-removing button provided with a sealing ring in this embodiment, the button cap 2 and the button post 21 are integrally formed. When the elastic sheet 4 and the piezoelectric material sheet 5 are installed, the bottom surface of the wall 13 is lower than the bottom surface of the piezoelectric material sheet 5 . A sealing ring is provided between the outer surface of the sealing plate 3 and the inner wall of the main casing 1 .

The above is only a preferred embodiment of the present invention, so all equivalent changes or modifications made according to the structure, features and principles described in the patent application scope of the present invention are included in the protection scope of the patent application of the present invention.

Claims (4)

1. a kind of dedusting key equipped with sealing ring, it is characterised in that: include the main casing for placing key-press switch of tubular Body (1), button cap (2), the key column (21) for being set to button cap (2) bottom surface and for by main casing (1) closed closing disk (3), closing disk (3) is equipped with the via hole for allowing key column (21) to pass through, and main casing (1) bottom surface extends downwardly out a corral wall (13)；It being equidistantly equipped with multiple air flues (11) in the wall of the main casing (1) around center, the air flue (11) communicates with bottom surface, Main casing (1) top surface is beveled walls, and the high inner edge in outside is low；It further include the bullet for having the disc being installed in enclosure wall (13) Property piece (4), elastic piece (4) bottom surface is covered with patch of piezoelectric material (5)；The elastic piece (4), main casing (1) bottom surface and enclosure wall (13) air cavity is formed together；Sealing ring is equipped between closing disk (3) lateral surface and main casing (1) inner wall；The main casing Two stitch via holes (12) are additionally provided on body (1) outer wall.

2. a kind of dedusting key equipped with sealing ring according to claim 1, it is characterised in that: the patch of piezoelectric material (5) it is less than the diameter of elastic piece (4) for round and diameter.

3. a kind of dedusting key equipped with sealing ring according to claim 1, it is characterised in that: the button cap (2) with Key column (21) is integrally formed.

4. a kind of dedusting key equipped with sealing ring according to claim 1, it is characterised in that: elastic piece (4) and piezoelectricity When material piece (5) is installed, enclosure wall (13) bottom surface is lower than patch of piezoelectric material (5) bottom surface.