CN216119991U - Dustproof anti-falling key structure - Google Patents

Abstract

The utility model provides a dustproof and anti-falling key structure, which comprises: the key cap is arranged in the mounting hole, and part of the key cap extends out of the shell; the key switch is fixedly arranged in the shell; the elastic protection cover is provided with an open cavity, is arranged in the shell and is positioned between the key cap and the key switch, and sleeves the key switch into the cavity; when the key cap is pressed, the elastic protective cover is extruded by the key cap, and then the key switch is triggered. Compared with the prior art, the dustproof and anti-falling key structure can prevent the key switch from being damaged when the key cap is subjected to a large impact force (such as falling), and the elastic protective cover plays a role in buffering and protecting; furthermore, the elastic protective cover is sleeved on the key switch, so that the dustproof effect can be achieved.

Description

Dustproof anti-falling key structure

Technical Field

The utility model relates to the technical field of keys, in particular to a dustproof and anti-falling key structure.

Background

At present, 3C electronic products such as mobile phones, tablets, game machines, remote controllers and the like on the market are all designed with physical keys, and the physical keys generally comprise key caps and key switches.

The key cap is usually made of plastic or metal, and is generally designed to protrude out of a shell of an electronic product, so that a user can conveniently press and use the key cap. By pressing the key cap, the key switch can be pressed.

Because the button cap is plastic or metal material, the material is harder and for the protrusion design, and electronic product is when falling, receives the striking easily according to the button cap, and then strikes key switch, leads to key switch damage, can't use. Moreover, dust easily enters a gap between the key cap and the shell, so that the key switch is easily polluted by the dust, the switch is disabled, and the key switch cannot be used.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a dustproof and anti-falling key structure to solve the defects in the prior art.

The utility model discloses a dustproof and anti-falling key structure which is suitable for an electronic device with a shell, wherein the shell is provided with a mounting hole, and the dustproof and anti-falling key structure comprises:

the key cap is arranged in the mounting hole, and part of the key cap extends out of the shell;

the key switch is fixedly arranged in the shell;

the elastic protection cover is provided with an open cavity, is arranged in the shell and is positioned between the key cap and the key switch, and sleeves the key switch into the cavity;

when the key cap is pressed, the elastic protective cover is extruded by the key cap, and then the key switch is triggered.

Compared with the prior art, the dustproof and anti-falling key structure can prevent the key switch from being damaged when the key cap is subjected to a large impact force (such as falling), and the elastic protective cover plays a role in buffering and protecting; furthermore, the elastic protective cover is sleeved on the key switch, so that the dustproof effect can be achieved; furthermore, the elastic protection cover has elasticity and can be deformed, and the user feels better when pressing the key cap.

In a preferred or optional embodiment, the elastic protection cover comprises a cover body, a deformation part and a pressing body which are sequentially arranged from bottom to top; the interior of the cover body is hollow; the deformation part is of an annular structure, the outer edge of the deformation part is connected to the cover body, and the inner edge of the deformation part is connected to the pressing body; the cover body, the deformation part and the pressing body enclose the cavity together.

In a preferred or alternative embodiment, the pressing body is of solid construction.

In a preferred or optional embodiment, an avoiding groove for avoiding the bonding pad is further arranged in the cover body.

In a preferred or alternative embodiment, the deformation tapers from bottom to top.

In a preferred or optional embodiment, a groove is formed in one side, facing the elastic protection cover, of the key cap, and the pressing body of the elastic protection cover is sleeved in the groove.

In a preferred or optional embodiment, the elastic protection cover is made of silicone.

For a better understanding and practice, the utility model is described in detail below with reference to the accompanying drawings.

Drawings

FIG. 1 is a schematic structural view of a housing and a dustproof and crash-proof key structure according to the present invention;

FIG. 2 is an exploded view of the housing and the dust-proof and crash-proof key structure of the present invention;

FIG. 3 is a schematic view of the structure of the elastic protection cover of the present invention;

FIG. 4 is a schematic view of the inner structure of the elastic protection cover of the present invention when not pressed;

FIG. 5 is a schematic view of the inner structure of the elastic protective cover of the present invention when pressed;

FIG. 6 is a schematic view of another aspect of the flexible boot of the present invention;

fig. 7 is an exploded view of the housing and the dust-proof and anti-falling key structure of the present invention from another perspective.

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. 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 application.

It will be understood that in the description of the present application, the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for ease of description and simplicity of description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present application. The terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, i.e. a feature defined as "first", "second" may explicitly or implicitly include one or more of such features. Further, unless otherwise specified, "a plurality" means two or more.

It should be noted that, in the description of the present application, unless otherwise explicitly specified or limited, the terms "disposed," "connected," and "hollow" are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; 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 meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

Referring to fig. 1 to 2, the present embodiment provides a dustproof and anti-falling key structure, which is suitable for an electronic device having a housing 10, wherein the housing 10 is provided with a mounting hole 11, the electronic device may be a mobile phone, a tablet, a game machine, a remote controller, and the like, and specifically, the electronic device of the present embodiment is a game machine. This embodiment dustproof prevent falling button structure includes: a key cap 20, a key switch 30, and an elastic protection cover 40.

The key cap 20 is installed in the installation hole 11, and a part of the key cap extends out of the casing 10. The key cap 20 protrudes from the case 10, and can be conveniently pressed by a user.

The key switch 30 is fixedly disposed in the housing 10, specifically, the key switch 30 is fixed on the circuit board 12 in the electronic device housing 10, so as to implement a switching function, and of course, in some other embodiments, the key switch 30 may also be directly fixed with an internal structure of the housing 10 and connected with other electronic components through wires, and the circuit board 12 is not necessarily required. Specifically, the key switch 30 in this embodiment is a switch key.

The elastic protection cover 40 has an open cavity, which is an elastic hollow body. The elastic protection cover 40 is arranged in the shell 10 and located between the key cap 20 and the key switch 30, and the elastic protection cover 40 sleeves the key switch 30 into the cavity. Specifically, the opening of the elastic protection cover 40 faces the key switch 30, the key switch 30 is sleeved in the elastic protection cover 40, and friction force exists between the key switch 30 and the elastic protection cover 40, so that the elastic protection cover 40 can be fixed.

When the user presses the key cap 20, the key cap 20 moves toward the inside of the housing 10, thereby pressing the elastic protection cover 40, so that the elastic protection cover 40 is deformed, thereby actuating the key switch 30.

According to the dustproof and anti-falling key structure, the elastic protection cover 40 is additionally arranged between the key cap 20 and the key switch 30, so that the key switch 30 can be prevented from being damaged when the key cap 20 is subjected to a large impact force (such as falling), and the elastic protection cover 40 plays a role in buffering and protecting; furthermore, as dust is easy to enter into the gap between the key cap 20 and the casing 10, the key switch 30 is easily polluted by the dust, and the switch is disabled, and the elastic protection cover 40 is used for sleeving the key switch 30, so that the dustproof effect can be achieved; further, the elastic protection cover 40 has elasticity and can be deformed, and a user feels better when pressing the key cap 20.

Specifically, the material of elasticity safety cover 40 is silica gel, and the elasticity safety cover 40 of silica gel material is softer, and the protection effect is better, and the hardness of 20-80 degrees can be chooseed for use according to the product demand to the silica gel material to control button is felt, and the button is felt heavier and the opposite silica gel material is softer and then the button is felt lighter if the silica gel hardness is harder.

Specifically, as shown in fig. 3-4, the elastic protection cover 40 includes a cover body 41, a deformation portion 42 and a pressing body 43, which are arranged in sequence from bottom to top; the cover body 41 is hollow, and the shape of the cover body 41 is rectangular; the deformation part 42 is of an annular structure, the outer edge of the deformation part 42 is connected to the cover 41, and the inner edge of the deformation part 42 is connected to the pressing body 43; the cover 41, the deformation portion 42 and the pressing body 43 together enclose the cavity. As shown in fig. 4 to 5, when the key cap 20 is pressed, the key cap 20 presses the pressing body 43, the deformation portion 42 is elastically deformed, and the pressing body 43 moves toward the cover 41 and presses the key switch 30. The elastic protection cover 40 is reasonable in structure and good in protection effect.

Preferably, the pressing body 43 is a solid structure, which facilitates the activation of the key switch 30.

Preferably, the deformation portion 42 is gradually contracted from bottom to top. The deformation portion 42 has a trapezoidal shape in front view, and facilitates downward displacement of the pressing body 43.

In addition, the key switch 30 may be connected to the circuit board 12 through a pad, and therefore, as shown in fig. 6, it is preferable that an escape groove 411 for escaping the pad is further provided inside the cover 41.

As shown in fig. 7, a groove 21 is further formed on a side of the key cap 20 facing the elastic protection cover 40, and the pressing body 43 of the elastic protection cover 40 is sleeved in the groove 21, so as to enhance the fixing effect of the elastic protection cover 40.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention.

Claims (7)

1. The utility model provides a prevent falling button structure, is applicable to on the electronic equipment that has the casing, a mounting hole has been seted up on the casing, its characterized in that, prevent dust and prevent falling button structure and include:

the key cap is arranged in the mounting hole, and part of the key cap extends out of the shell;

the key switch is fixedly arranged in the shell;

the elastic protection cover is provided with an open cavity, is arranged in the shell and is positioned between the key cap and the key switch, and sleeves the key switch into the cavity;

when the key cap is pressed, the elastic protective cover is extruded by the key cap, and then the key switch is triggered.

2. The dust-proof and drop-proof key structure according to claim 1, wherein:

the elastic protective cover comprises a cover body, a deformation part and a pressing body which are sequentially arranged from bottom to top; the interior of the cover body is hollow; the deformation part is of an annular structure, the outer edge of the deformation part is connected to the cover body, and the inner edge of the deformation part is connected to the pressing body; the cover body, the deformation part and the pressing body enclose the cavity together.

3. The dust-proof and drop-proof key structure according to claim 2, wherein:

the pressing body is of a solid structure.

4. The dust-proof and drop-proof key structure according to claim 2, wherein:

an avoiding groove for avoiding the bonding pad is further formed in the cover body.

5. The dust-proof and drop-proof key structure according to claim 2, wherein:

the deformation portion gradually contracts from bottom to top.

6. The dust-proof and drop-proof key structure according to claim 2, wherein:

one side of the key cap, which faces the elastic protection cover, is provided with a groove, and the pressing body of the elastic protection cover is sleeved in the groove.

7. The dustproof and crash-proof key structure according to any one of claims 1 to 6, wherein:

the material of elasticity safety cover is silica gel.

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