WO2016169365A1

WO2016169365A1 - Ultrathin keyboard switch

Info

Publication number: WO2016169365A1
Application number: PCT/CN2016/076465
Authority: WO
Inventors: 余正明
Original assignee: 余正明
Priority date: 2015-04-23
Filing date: 2016-03-16
Publication date: 2016-10-27
Also published as: CN204497106U

Abstract

An ultrathin keyboard switch comprises a mounting base (2) and a pressing cover (8). A microswitch module is disposed between the mounting base and the pressing cover. Four corners of the pressing cover are respectively provided with a balancing and positioning column (81). The mounting base is provided with guide holes (25) that are located corresponding to the balancing and positioning columns of the pressing cover and that are used for allowing the balancing and positioning columns to pass through and move up and down. By means of mutual cooperation of the balancing and positioning columns and the guide holes, the balance degree and the stability are effectively enhanced, the corner clamping problem is solved and the service life of the product is prolonged. By using the microswitch module, the internal space of the switch is fully utilized, so that the thickness of the switch is controlled, and the switch is thinner; a snapline (7) is additionally arranged in the switch, and accordingly on the premise that the switch is made as small as possible, the switch provides a good touch feel and a hearing effect during the pressing process.

Description

Ultra-thin keyboard switch

Technical field

The utility model relates to the field of switch technology.

Background technique

At present, the requirements for switches tend to be thin and stable. When the switch is applied to various electronic devices such as keyboards, it is required to be thin and light, and the stability of the switch during use is required, and the card angle cannot be generated, and the switch overall is required. Balance, stability needs to be guaranteed, and these technical problems are constantly improving, but still not ideal.

Utility model content

In view of this, the technical problem to be solved by the present invention is to provide a balanced and stable ultra-thin keyboard switch.

In order to solve the above technical problem, the technical solution provided by the present invention is: an ultra-thin keyboard switch comprising a mounting base and a gland, and a micro switch module is disposed between the mounting base and the gland, and the four corners of the gland A balance positioning column is respectively arranged, and the balance positioning column on the mounting base corresponding to the pressure cover is provided with a guide hole for the balance positioning column to pass through and move up and down.

The gland is provided with a buckle, and the mounting base is correspondingly provided with a bayonet that is fastened to the buckle on the gland.

The micro switch module includes a guide post disposed in a middle portion of the mounting base, and further includes a handle, an upper cover, an annular elastic piece and a spring, the spring is sleeved on the guide post, and the handle is mounted on the guide post sleeved with the spring, the annular elastic piece The sleeve is fixed to the outside of the handle, and one side is fixed to the base; the annular elastic piece includes an annular mounting portion sleeved outside the handle and two elastic legs disposed on the periphery of the annular mounting portion, and a first terminal mounting portion, A terminal mounting portion protrudes from the opposite side of the annular mounting portion from the mounting foot to the mounting bottom for external line connection; the mounting base is provided with a fixed terminal under the corresponding elastic piece of the elastic piece; the upper cover is fastened to the mounting base to be ring-shaped The elastic piece covers the inside of the upper cover, and the middle part of the upper cover is a through hole, and the upper part of the upper handle is punched out by the through hole for pressing.

An elastic wire is arranged under the annular elastic piece in the upper cover, one end of the elastic wire is fixed on the mounting base, and the other end is located on the side wall of the handle, and the corresponding side wall of the handle is provided with a protruding platform and a guiding inclined surface. The ring-shaped projectile foot is brought into contact with the fixed terminal on the mounting base to realize the switch conduction; at the same time, the projectile is also driven to descend by the protruding platform, and when the ball is pressed down to a certain stroke, the elastic wire is detached from the handle and rebounds along the guiding oblique surface, hitting Sounds on the ring shrapnel.

An elastic wire mounting post is further disposed on the mounting base, one end of the elastic wire is vertically installed in the elastic wire mounting post, and the other end is laterally extended from the side wall of the elastic wire mounting post to the side of the handle, and the lateral protruding end has a downwardly bent portion providing a spring force and a lateral bending portion for pressing and tapping; a handle groove corresponding to the shape of the handle around the guide post on the mounting base; and an annular elastic piece mounting column on the base The annular mounting portion is correspondingly provided with a mounting hole at the first terminal mounting portion, and is fixed on the annular elastic piece mounting post through the mounting hole, and the first terminal mounting portion is attached to the side wall of the annular elastic piece mounting column and protrudes downwardly from the mounting bottom. seat.

The fixed terminal includes a second terminal mounting portion and an arc-shaped contact portion corresponding to the annular elastic piece foot. The second terminal mounting portion protrudes from the mounting base for external line connection; the arc-shaped contact portion corresponds to two elastic foot contact positions. Set the contacts separately.

Compared with the prior art, the utility model has the following advantages:

The utility model provides an ultra-thin keyboard switch, which adopts the mutual cooperation of the balance positioning column and the guide hole, thereby effectively improving the balance degree and stability, solving the card angle problem and making the product life longer; and fully utilizing the micro switch module The internal space of the switch makes the thickness of the switch controlled, and is lighter and thinner. By adding a spring wire in the switch, the switch can have a good touch and a sense of hearing during the pressing process under the premise that the switch is as small as possible.

DRAWINGS

Figure 1 is an exploded view of the structure of the present invention.

Figure 2 is an external assembly view of the present invention.

Figure 3 is a schematic view of the bottom structure of the present invention.

4 is an assembled structural view of the mounting base and the micro switch module of the present invention.

Figure 5 is a view showing the internal structure of the gland of the present invention.

Fig. 6 is a structural view showing the assembly of the mounting base and the micro switch module of the present invention.

Figure 7 is a schematic view showing the structure of the mounting base of the present invention.

Figure 8 is a schematic view showing the assembly structure of the handle and the elastic wire of the utility model.

Figure 9 is a schematic view showing the structure of the annular elastic piece of the present invention.

Figure 10 is a schematic view showing the structure of the fixed terminal of the present invention.

detailed description

In order to facilitate the understanding of those skilled in the art, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

As shown in FIG. 1 to FIG. 5, the ultra-thin keyboard switch described in this embodiment includes a mounting base 2 and a gland 8. Four balance positioning posts 81 are disposed on the inner corners of the gland 8, and the mounting base 2 is balanced. The positioning post 81 is provided with a guide hole 25. When the ultra-thin keyboard switch is pressed, the balance positioning post 81 moves up and down in the guide hole 25, ensuring the balance pressing of the gland 8, and the buckle 8 is further disposed on both sides of the gland 8. The corresponding mounting base 2 is provided with a bayonet 26 at a position corresponding to the buckle 82, and the gland 8 and the mounting base are connected by the snapping of the buckle 82 and the buckle 26. A micro switch module is disposed between the mounting base 2 and the gland 8.

As shown in FIG. 1, 4, 6, 8, 9, and 10, the micro switch module includes a handle 1, an upper cover 3, an annular elastic piece 4, a spring 5, a fixed terminal 6, and a spring wire 7, as shown in FIG. The utility model further comprises a guide post 21 disposed at a middle portion of the mounting base 2, and a handle stroke groove 23 is arranged around the guide post 21 corresponding to the shape of the handle 1. The spring 5 is sleeved on the guide post 21, and a guide rod is disposed corresponding to the guide post 21 below the handle 1, and the handle 1 is mounted through the guide rod into the guide post 21 of the sleeve 5 with the spring 5.

As shown in FIG. 9, the annular elastic piece 4 includes an annular mounting portion 41 that is sleeved outside the shank 1, and two elastic legs 43 that are provided at the periphery of the annular mounting portion 41, and a first terminal mounting portion 42. The first terminal mounting portion 42 projects downward from the side of the annular mounting portion 41 opposite the projecting leg 43 to the mounting base 2 for external line connection. The mounting base 2 is provided with an annular elastic plate mounting post 24, and the annular mounting portion 41 is provided with a mounting hole at the first terminal mounting portion 42 and is fixed to the annular elastic piece mounting post 24 through the mounting hole. A fixed terminal 6 is disposed on the base 2 corresponding to the annular elastic piece 4 below the elastic foot. As shown in FIG. 10, the fixed terminal 6 includes a second terminal mounting portion 61 and an arcuate contact portion 62 corresponding to the elastic foot of the annular elastic piece 4. The second terminal mounting portion 61 extends out of the mounting base 2 for external line connection. Contact points 63 are respectively disposed on the curved contact portions 62 corresponding to the two foot contact positions.

The mounting base 2 is further provided with a spring mounting post 22, one end of the elastic wire 7 is vertically installed in the elastic wire mounting post 22, and the other end is laterally extended from the side wall of the elastic wire mounting post 22 to the side of the handle 1, The laterally projecting end has a downwardly bent portion that provides an elastic force and a laterally bent portion that is pressed and struck. The upper cover 3 is fastened to the mounting base 2 to cover the annular elastic piece 4 therein, and the middle of the upper cover 3 is a through hole, and the upper part of the handle 1 is punched out by the through hole for pressing. The elastic wire 7 is disposed under the annular elastic piece 4 in the upper cover 3, one end of which is fixed on the mounting base 2, and the other end is located on the side wall of the handle 1, and the corresponding side wall of the handle 1 is provided with a protruding base 12 and a guiding inclined surface 11, When the handle 1 is pressed down, the ring spring 4 is driven to lower the fixed terminal 6 on the base to realize the switch conduction; at the same time, the projectile 12 is used to drive the elastic wire 7 to descend, and when pressed down to a certain stroke, the elastic wire 7 is separated from the handle. The platform rebounds upwards and hits the shrapnel 11 along the guiding ramp 11 to make a sound.

In the utility model, an ultra-thin keyboard switch is taken as an example. In fact, the switch structure in the utility model is not limited to the use of an ultra-thin keyboard switch, and can be extended to any switch field.

In use, the gland 8 is pressed, and the balance positioning post 81 moves downward along the guide hole 25 to indirectly press the micro switch module. According to the handle 1, the switch is turned on, the external force spring 5 is removed to reset the handle, and the cover is pushed up, and the balance positioning post 81 moves upward along the guide hole 25.

The above embodiments are only preferred implementations of the present invention, and the description thereof is more specific and detailed, but is not to be construed as limiting the scope of the invention. It should be noted that a number of variations and modifications may be made by those skilled in the art without departing from the spirit and scope of the invention.

Claims

An ultra-thin keyboard switch comprising: a mounting base (2) and a gland (8), a micro-switch module is disposed between the mounting base (2) and the gland (8), the gland ( 8) The balance positioning column (81) is respectively arranged at the four corners, and the mounting base (2) corresponding to the balance positioning column (81) on the gland (8) is provided with a guide for the balance positioning column (81) to pass through and move up and down. Hole (25).
The ultra-thin keyboard switch according to claim 1, characterized in that: the gland (8) is provided with a buckle (82), and the mounting base (2) is correspondingly provided with a buckle on the gland (8) (82) The snap-in bayonet (26).
The ultra-thin keyboard switch according to claim 2, wherein the micro switch module comprises a guide post (21) disposed in a middle portion of the mounting base (2), and further comprises a handle (1) and an upper cover (3) , the annular elastic piece (4) and the spring (5), the spring (5) is sleeved on the guide post (21), and is mounted on the guide post (21) sleeved with the spring (5) according to the handle (1), and the annular spring piece ( 4) sleeved on the outside of the handle (1), one side is fixed to the base (2); the annular elastic piece (4) includes an annular mounting portion (41) sleeved outside the handle and a ring mounting portion (41) a second outer leg (43) and a first terminal mounting portion (42) extending downward from an opposite side of the annular mounting portion (41) from the elastic foot (43) The mounting base (2) is connected to the external line; the mounting base (2) corresponds to the annular elastic piece (4) and the fixed terminal (6) is arranged under the elastic foot; the upper cover (3) is fastened to the mounting base (2) to be ring-shaped The elastic piece (4) is covered therein, and the middle part of the upper cover (3) is a through hole, and the upper part of the handle (1) is pierced by the through hole for pressing.
The ultra-thin keyboard switch according to claim 3, characterized in that: the upper cover (3) has an elastic wire (7) under the annular elastic piece (4), and one end of the elastic wire (7) is fixed to the mounting base (2) ), the other end is located on the side wall of the handle (1), and the corresponding side wall of the handle (1) is provided with a protruding platform (12) and a guiding inclined surface (11), and the annular elastic piece is driven when the handle (1) is pressed down ( 4) The lower end of the elastic foot (43) is connected to the fixed terminal (6) on the mounting base (2) to realize the switch conduction; at the same time, the protruding line (12) also drives the elastic wire (7) to descend, and when pressed down to a certain stroke, the elastic The wire (7) is detached from the shank (1) and rebounds upward along the guiding slope (11), and the sound is struck on the annular elastic piece (4).
The ultra-thin keyboard switch according to claim 3, wherein the mounting base (2) is further provided with a spring mounting post (22), and one end of the elastic wire (7) is vertically mounted on the elastic wire mounting post ( 22) inside, the other end laterally protrudes from the side wall of the elastic wire mounting post (22) to the side of the handle (1), the laterally projecting end has a downwardly bent portion providing an elastic force and a pressing and knocking a transverse bending portion of the strike; a shank stroke groove (23) corresponding to the shape of the shank corresponding to the guide post (21) on the mounting base (2); the base (2) is provided with an annular elastic piece mounting column (24), A mounting hole is formed in the annular mounting portion (41) corresponding to the first terminal mounting portion (42), and is fixed through the mounting hole On the annular spring mounting post (24), the first terminal mounting portion (42) is attached to the mounting base (2) of the annular spring mounting post (24).
The ultra-thin keyboard switch according to claim 4, wherein the fixed terminal (6) comprises a second terminal mounting portion (61) and an arcuate contact portion (62) corresponding to the elastic piece of the annular elastic piece (4) The second terminal mounting portion (61) extends from the mounting base (2) for external line connection; the arc contact portion (62) is provided with a contact (63) corresponding to the contact positions of the two legs (43).