CN211018795U

CN211018795U - Optical axis keyboard key switch

Info

Publication number: CN211018795U
Application number: CN202020362175.8U
Authority: CN
Inventors: 汪大明
Original assignee: Huizhou Gateron Electronic Technology Co ltd
Current assignee: Huizhou Gateron Electronic Technology Co ltd
Priority date: 2020-03-20
Filing date: 2020-03-20
Publication date: 2020-07-14
Anticipated expiration: 2030-03-20

Abstract

The utility model discloses an optical axis keyboard key switch. The optical axis keyboard key switch comprises a rubber shell, a base and a key shaft core; the rubber shell is buckled on the base, and the key shaft core is telescopically arranged on the rubber shell; a positioning column is arranged on one side of the base, which faces the rubber shell; a guide groove is formed in the middle of the positioning column; one side of the key shaft core facing the base is provided with a guide post correspondingly matched with the guide groove; when the key shaft core is pressed, the guide column can extend into the guide groove; the bottom of the guide groove is provided with symmetrically distributed light holes; and the inner wall of the guide groove is provided with a guide rail. In the optical axis keyboard key switch, the guide post is a hollow post column with a hollow inner part, so that the diameter size of the guide post can be designed and increased, the shading effect and the electric signal switching are more reliable, the pressing and guiding are more accurate, and the use hand feeling is smooth and has no jam; and the guide rail is arranged on the inner side surface of the guide groove, so that the guide movement is smoother.

Description

Optical axis keyboard key switch

Technical Field

The utility model relates to a key switch technical field, concretely relates to optical axis keyboard key switch.

Background

As a novel keyboard in recent years, an optical axis keyboard is based on the traditional mechanical key shaft technology, a brand new optical sensing identification technology is added, and the traditional contact plectrum is replaced by an optical sensing component, so that some problems of the traditional contact type mechanical switch are improved. The optical axis keyboard uses infrared optical induction, no contact point is not worn or abraded when the keyboard is conducted, the problem of contact shaking is avoided, the click response speed is high, the click frequency is high, double click, continuous click and no response caused by the problem of metal oxidation aging are avoided, and the service life is long. In addition, the optical axis keyboard has no metal contact, the change on the hand feeling can not be generated after long-time use, and the feedback force of the keys is consistent.

Although the optical axis keyboard is added with the optical induction recognition technology, the key switch still adopts the traditional key mode, namely the key structure comprising the key axis core and the base. In the key structure, the pressing guide structure comprises a guide column which is arranged on the key shaft core and protrudes towards the base, a positioning column which is arranged on the base and protrudes towards the key shaft core, and a through guide hole is arranged in the middle of the positioning column, when the key shaft core is pressed down, the guide column extends into the guide hole to perform pressing guide. However, the guiding structure has many disadvantages and shortcomings in the implementation process. The traditional design is that the guide post is made into a solid post with a small diameter, and the diameter of the guide post is too small, so that the shading effect is poor, and the switching of electric signals is misjudged easily; moreover, the diameter of the guide column is too small, the guide precision is reduced, the guide is inaccurate, the hand feeling is slightly jammed and unsmooth in the actual use process, and the requirements of smooth pressing of the key switch, especially the key switch of the keyboard, are not favorably met.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an optical axis keyboard key switch to the defect or not enough that exist among the prior art. In the key switch of the optical axis keyboard, the guide post on the key shaft core is designed into the hollow post column with a hollow inner part, so that the diameter size of the guide post can be designed and increased, the shading effect is more reliable, the electric signal switching is more reliable, the pressing and guiding between the guide post and the guide groove are more accurate, and the use hand feeling is smoother and is not jammed; and the guide rail is arranged on the inner side surface of the guide groove, so that the contact area between the guide post and the guide groove can be effectively reduced, and the guide movement is smoother.

The purpose of the utility model is realized through the following technical scheme.

An optical axis keyboard key switch comprises a rubber shell, a base and a key shaft core; the rubber shell is buckled on the base, and the key shaft core is telescopically arranged on the rubber shell;

a positioning column is arranged on one side of the base, which faces the rubber shell; a guide groove is formed in the middle of the positioning column; one side of the key shaft core facing the base is provided with a guide post correspondingly matched with the guide groove; when the key shaft core is pressed, the guide column can extend into the guide groove; and the bottom of the guide groove is provided with symmetrically distributed light holes.

In a preferred embodiment, the guide groove has a guide rail on an inner wall thereof.

In a more preferred embodiment, the number of the guide rails is more than two, and the more than two guide rails are uniformly distributed.

Still further preferably, the guide rails are 4, and the 4 guide rails are uniformly distributed.

In a preferred embodiment, the guide post is hollow inside and open towards the end of the base.

In a preferred embodiment, the bottom of the guide slot protrudes out of the plane of the bottom of the base.

In a preferred embodiment, the key shaft core is provided with a guide ridge; the base is provided with a guide groove matched with the guide ridge.

In a preferred embodiment, a pressure spring is arranged between the base and the key shaft core; the pressure spring is sleeved on the positioning column and the guide column, one end of the pressure spring is connected and acts on the key shaft core, and the other end of the pressure spring is connected and acts on the base.

In a preferred embodiment, the base is further provided with a sounding elastic sheet; in the process of pressing the key shaft core, the sounding elastic sheet strikes the inner wall of the rubber shell and makes a sound.

Compared with the prior art, the utility model has the advantages of as follows and beneficial effect:

(1) in the optical axis keyboard key switch of the utility model, the guide post on the key shaft core is a hollow post with a hollow inner part, so that the size of the guide post can be designed to be larger, the shading effect is more reliable, and the electric signal switching is more reliable; and, the direction that makes in-process guide post and guide way of pressing matches the adaptability better to make the direction of pressing between guide post and the guide way more accurate, press during the use and feel more smoothly not have the jam.

(2) The utility model discloses an optical axis keyboard key switch is provided with the guide rail on the inner wall face of guide way, and the guide rail is the design of even symmetric distribution moreover, can effectively reduce the area of contact of guide post and guide way through the guide rail, guides the guide motion of guide post and guide way, makes the guide motion more smooth and easy, steady, presses down and feels more smooth and easy.

(3) The utility model discloses an optical axis keyboard key switch, set up the light trap that supplies the light to pierce through in the bottom of guide way, when pressing down the key shaft core and make the guide post stretch into to the guide way, the guide post will shelter from the light that sees through from the light trap to realize that the signal switching is carried out in the signal response of telecommunication, and then realize the on-off control to optical axis keyboard key circuit; and simultaneously, because the fit clearance of guide post and guide way is less, can in time discharge the compressed air that gathers in guide post and the guide way cooperation process through the light trap, avoid the air to gather the compression and cause and press the bite, guarantee to press and feel smoothly.

Drawings

Fig. 1 is a schematic view of the overall structure of an optical axis keyboard key switch according to the present invention in an exemplary embodiment;

fig. 2 is a schematic cross-sectional structural view of the optical axis keyboard key switch according to the present invention in the specific embodiment;

fig. 3 is a schematic view of an overall assembly structure of the optical axis keyboard key switch according to the present invention in the specific embodiment;

fig. 4 is a schematic structural view of a key shaft core in the optical axis keyboard key switch according to the present invention in the specific embodiment;

fig. 5 is a schematic structural view of a base in the optical axis keyboard key switch according to the present invention in the specific embodiment;

fig. 6 is a schematic structural view of a sounding elastic sheet in the optical axis keyboard key switch according to the present invention in the specific embodiment;

description of the drawings: 1-rubber shell, 2-base, 21-positioning column, 210-guide groove, 2101-light hole, 2102-guide rail, 22-guide groove, 3-key shaft core, 31-guide column, 32-guide ridge, 4-pressure spring, 5-sounding shrapnel, 501-shrapnel inserting installation part, 502-elastic bending part and 503-abutting part.

Detailed Description

The technical solution of the present invention will be described in further detail with reference to the following specific embodiments and accompanying drawings, but the scope of protection and the implementation of the present invention are not limited thereto. In the description of the embodiments of the present invention, it should be noted that the terms "upper" and "lower" are used for indicating the orientation or position relationship based on the orientation or position relationship shown in the drawings, or the orientation or position relationship that the product of the present invention is usually placed when in use, or only for distinguishing the description, and are only used for convenience of description and simplification of the description, but not for indicating or implying that the indicated device or element must have a specific orientation, be constructed in a specific orientation, and operate, and therefore, should not be interpreted as limiting the present invention, nor indicating or implying relative importance.

Example 1

Referring to fig. 1 to 3, the optical axis keyboard key switch of the present embodiment includes a rubber casing 1, a base 2 and a key shaft core 3.

The rubber shell 1 is buckled on the base 2, and the key shaft core 3 can be telescopically arranged on the rubber shell 1 along a direction close to or far away from the base 2. Referring to fig. 4 and 5, the key shaft core 3 has a guide ridge 32 on its outer surface, and the base 2 has a guide groove 22 fitted with the guide ridge 32. When the key shaft core 3 extends and contracts in a direction approaching or departing from the base 2, the guide ridge 32 performs stable sliding fit in the guide groove 22, so that the key shaft core 3 can stably extend and contract in a direction approaching or departing from the base 2.

Moreover, a positioning column 21 is arranged on one side of the base 2 facing the rubber casing 1, and a guide groove 210 is formed in the middle of the positioning column 21; the key shaft core 3 is provided with a guide column 31 correspondingly matched with the guide groove 210 on one side facing the base 2; when the key shaft core 3 is pressed, the guide post 31 can be inserted into the guide groove 210, thereby performing pressing guide.

In addition, the bottom sidewall of the guide groove 210 is provided with symmetrically distributed light holes 2101 for the sensing transmission of the circuit sensing light. In this embodiment, the light transmission holes 2101 include 2 symmetrically arranged light transmission holes. In addition, in order to facilitate the penetration of the sensing light and the on-off control of the light sense, the bottom of the guide groove 210 protrudes out of the bottom plane of the base 2, so that the light hole 2101 can conveniently correspond to the transmission of the sensing light emitted by the sensing light emitting device arranged outside the bottom of the key switch in the installation process.

When the optical axis keyboard key switch of this embodiment is used, the whole keyboard key switch is installed on the keyboard, and light rays of the light sensing on-off circuit penetrate through the light holes 2101 which are symmetrically distributed. In the switch control process, when the key shaft core 3 is pressed downwards, the guide post 31 extends into the guide groove 210 and the light-transmitting hole 2101 is shielded at the bottom of the guide groove 210, so that light is shielded to enable electric signal induction to perform signal switching; when the key shaft core 3 is reset upwards, the guide post 31 will move upwards, so that the light can penetrate through the symmetrically distributed light holes 2101 again, and the electric signal is sensed again to switch the signal. Therefore, the electrical signals are switched back and forth by pressing and resetting the key shaft core 3, and the circuit on-off control of the keys of the optical axis keyboard is realized.

Referring to fig. 4, in the present embodiment, the guide post 31 is hollow inside and open toward the end of the base 2. The guide column 31 is designed into a hollow column with a hollow inner part, so that the size of the guide column 31 can be designed to be larger, the shading effect is more reliable, and the electric signal switching is more reliable; and, the direction that makes the in-process guide post 31 of pressing key shaft core 3 and guide way 210 matches the adaptability better to make the direction of pressing between guide post 31 and the guide way 210 more accurate, press during the use and feel more smoothly not have the jam.

Also, as shown in fig. 5, a guide rail 2102 is provided on an inner wall of the guide groove 210. In this embodiment, the number of the guide rails 2102 is 4, and the 4 guide rails 2102 are uniformly distributed on the inner wall surface of the guide groove 210. The telescopic motion of guide post 31 in guide way 210 is carried out along guide rail 2102, and the surface direct and guide rail 2102 direct contact of guide post 31 is led by guide rail 2102, can effectively reduce the area of contact of guide post 31 and guide way 210 through guide rail 2102, and the guide motion to guide post 31 and guide way 210 makes guide motion more smooth and stable, presses and feels more smooth and easy.

Referring to fig. 2 and 3 again, in the present embodiment, a pressure spring 4 is disposed between the base 2 and the key shaft core 3; the pressure spring 4 is sleeved on the positioning column 21 and the guide column 31, one end of the pressure spring is connected and acts on the key shaft core 3, and the other end of the pressure spring is connected and acts on the base 2. In the process of pressing the key shaft core 3 downwards, the pressure spring 4 compresses and accumulates elastic potential energy, and after the pressing force is removed, the compressed pressure spring 4 converts the elastic potential energy into kinetic energy to drive the key shaft core 3 to upwards restore the original position.

In addition, the base 2 is also provided with a sounding elastic sheet 5; in the process of pressing the key shaft core 3, the sounding elastic sheet 5 strikes the inner wall of the rubber shell 1 and makes a sound.

Referring to fig. 6, in the present embodiment, the sounding elastic sheet 5 includes an elastic sheet insertion mounting portion 501, an elastic bending portion 502, and an abutting portion 503; the sounding elastic sheet 5 is inserted and arranged on the base 2 through an elastic sheet insertion installation part 501, the elastic sheet insertion installation part 501 is bent towards one side close to the key shaft core 3 to form the elastic bending part 502, and the elastic bending part 502 extends obliquely along the pressing direction to form the abutting part 503; the abutting portion 503 abuts against the outer wall of the key shaft core 3.

Because the shell fragment grafting installation department 501 of sound production shell fragment 5 pegs graft on base 2, butt portion 503 and key shaft core 3's outer wall butt, when pressing when key shaft core 3, the elastic bending portion 502 of sound production shell fragment 5 will receive key shaft core 3's squeezing action and produce and use shell fragment grafting installation department 501 as the ascending bending deformation of fulcrum to make the bump of the biggest department of bending radian of elastic bending portion 502 hit on the inner wall of gluey shell 1, and then make a sound.

The above embodiments are merely preferred embodiments of the present invention, and only lie in further detailed description of the technical solutions of the present invention, but the protection scope and the implementation manner of the present invention are not limited thereto, and any changes, combinations, deletions, replacements, or modifications that do not depart from the spirit and principles of the present invention will be included in the protection scope of the present invention.

Claims

1. An optical axis keyboard key switch is characterized by comprising a rubber shell (1), a base (2) and a key shaft core (3); the rubber shell (1) is buckled on the base (2), and the key shaft core (3) is telescopically arranged on the rubber shell (1);

a positioning column (21) is arranged on one side of the base (2) facing the rubber shell (1); a guide groove (210) is formed in the middle of the positioning column (21); the side of the key shaft core (3) facing the base (2) is provided with a guide post (31) correspondingly matched with the guide groove (210); when the key shaft core (3) is pressed, the guide column (31) can extend into the guide groove (210); the bottom of the guide groove (210) is provided with symmetrically distributed light holes (2101).

2. An optical axis keyboard key switch according to claim 1, characterized in that the inner wall of the guide groove (210) has a guide rail (2102).

3. The optical axis keyboard key switch according to claim 2, wherein the number of the guide rails (2102) is two or more, and the two or more guide rails (2102) are uniformly distributed.

4. An optical axis keyboard keyswitch as claimed in claim 1, wherein the guide posts (31) are hollow and open towards the end of the base (2).

5. An optical axis keyboard keyswitch as claimed in claim 1, wherein the bottom of the guide slot (210) protrudes out of the plane of the bottom of the base (2).

6. An optical axis keyboard key switch according to claim 1, characterized in that the key shaft core (3) has a guide ridge (32); the base (2) is provided with a guide groove (22) matched with the guide ridge (32).

7. An optical axis keyboard key switch according to claim 1, characterized in that a compression spring (4) is arranged between the base (2) and the key shaft core (3); the positioning column (21) and the guide column (31) are sleeved with the pressure spring (4), one end of the pressure spring is connected and acts on the key shaft core (3), and the other end of the pressure spring is connected and acts on the base (2).

8. An optical axis keyboard key switch according to any one of claims 1 to 7, characterized in that the base (2) is further provided with a sounding dome (5); in the process of pressing the key shaft core (3), the sounding elastic sheet (5) strikes the inner wall of the rubber shell (1) and makes a sound.