CN208489136U - A kind of press-key structure - Google Patents

Abstract

The utility model provides a kind of press-key structure, including key and shell, key hole is offered on the shell, circuit is equipped in the shell, the circuit and the key are electrically connected, the key has dubbing at least partially across the key hole between the key and the inner wall of the key hole.The press-key structure by dubbing by fluid isolation on the outside of electronic equipment, liquid is set to play the role of waterproof liquid-proof into not electronic equipment internal, it is simple and easy, reduce the high precision requirement that key is matched with electronic equipment casing, and cost is relatively low for dubbing itself, to reduce whole production cost.

Description

A kind of press-key structure

Technical field

The utility model belong to electronic product waterproof construction field more particularly to a kind of press-key structure.

Background technique

The waterproof construction at key position is usually using the more complicated silica gel part of structure as waterproof part, this anti- In water-bound, since key usually needs to carry out push action to realize conducting and reset function, so that silica gel part need to produce repeatedly Raw tensile deformation can act on key switch.Due to realizing the two by pasting or dispensing fixing mostly between silica gel part and shell Between assembling and waterproof, and under the continuous tensile deformation of silica gel part, viscose between the two is also easy to produce pine by shearing force Depigmentation effect, and then influences the connectivity robustness between silica gel part and the shell, when key pressing repeatedly after, silica gel part easily from It falls off on shell, so as to cause keypress function failure, also results in the sealing waterproof failure between key and shell.

Further, since silica gel part is soft materials, exists in its assembling process and paste flatness and positioning accuracy hardly possible The problem of to guarantee, and then be easy to influence assembling quality and efficiency.Meanwhile silica gel part need to shift to an earlier date one when production line starts assembling It carries out dispensing operation, and not only production cost is higher for this silica gel part waterproof construction, but also requirement on machining accuracy is also higher, so that Volume production quality and production capacity are difficult to improve.

Utility model content

The technical problem to be solved by the utility model is to provide a kind of press-key structures, it is intended to solve current by bond The higher problem of structure production cost.

In order to solve the above technical problems, the application provides a kind of press-key structure, including key and shell, opened on the shell Equipped with key hole, circuit is equipped in the shell, the circuit and the key are electrically connected, the key at least partially across The key hole has dubbing between the key and the inner wall of the key hole.

Further, the dubbing includes one of contact oil or lubricating oil.

Further, the dubbing is less than the overall length of the key hole along the thickness of the key hole axial direction Degree.

Further, the key includes press section and lug boss, and the press section is located at the outside of the key hole, institute Lug boss is stated across the key hole, wherein the dubbing is between the lug boss and the key hole.

Further, the hull outside has holding tank, and the press section is contained in the holding tank.

Further, dubbing is provided between the side of the press section and the holding tank circumferential direction inner sidewall.

Further, the press-key structure further includes elastic component, the elastic component be arranged in the holding tank and with institute State press section elastic connection.

Further, the elastic component is spring.

Further, the key hole is circular through hole, and the lug boss is cylindrical, and the cross section of the lug boss Diameter is less than the cross-sectional diameter of the circular through hole.

Further, the press section and lug boss are integrally formed.

The utility model has the beneficial effects that: a kind of press-key structure of the utility model, key and key hole is interior There is dubbing between wall.In this way, when the liquid such as extraneous water enter key hole, by the dubbing by fluid isolation On the outside of electronic equipment, liquid is made to play the role of waterproof liquid-proof into not electronic equipment internal.The press-key structure is simply easy Row reduces the high precision requirement that key is matched with electronic equipment casing, and cost is relatively low for dubbing itself, from And reduce whole production cost.

Detailed description of the invention

Fig. 1 is a kind of cross-sectional view of press-key structure of the utility model embodiment.

In the accompanying drawings, each appended drawing reference indicates:

100, press-key structure；10, key；11, press section；12, lug boss；20, shell；21, key hole；22, circuit； 23, holding tank；231, inner sidewall；232, inner bottom wall；30, dubbing；40, elastic component.

Specific embodiment

In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain The utility model is not used to limit the utility model.

As shown in Figure 1, being a kind of press-key structure 100 provided by the embodiment of the utility model comprising key 10 and shell 20。

Key hole 21 is offered on the shell 20, and circuit 22 is equipped in the shell 20.The shell 20 can be The shell of mobile phone, the shell of computer or shell of other electronic devices etc..The material of shell 20 can be metal, such as: Titanium alloy, magnesium alloy, stainless steel, aluminium alloy etc.；It is also possible to plastic cement, such as: silica gel etc..

The key hole 21 can be provided on the side wall of shell 20, meanwhile, it can be opened up on the side wall of the shell 20 several A key hole 21.The key 10 is electrically connected at least partially across the key hole 21, the circuit 22 with the key 10, The circuit 22 can be the circuit of control volume, be also possible to the circuit of control shutdown or breath screen.

There is dubbing 30 between the key 10 and the inner wall of the key hole 21, utilize 30 shape of dubbing At waterproof layer, in this way, when the liquid such as extraneous water enter key hole 21, by the dubbing 30 by fluid isolation in electronics On the outside of equipment, liquid is made to play the role of waterproof liquid-proof into not electronic equipment internal.

Specifically, the key 10 includes press section 11 and lug boss 12, and the press section 11 is located at the key hole 21 Outside, the lug boss 12 pass through the key hole 21 so that the lug boss 12 can move in the key hole 21 It is dynamic.Wherein, the dubbing 30 is between the lug boss 12 and the key hole 21, in the utility model embodiment In, the dubbing 30 can be one of contact oil or lubricating oil, and the dubbing 30 is along 21 axis of key hole It is less than the total length of the key hole 21 to the thickness in direction, but is not limited to the specific location of the dubbing 30 and specific Type.

The press section 11 is pressed to drive the lug boss 12 to contact with each other along the key hole 21 and the circuit 22, To realize the function conducting of key 10, i.e. adjusting volume or shutdown, breath screen etc..After unclamping the press section 11, the protrusion Portion 12 is separated from each other with the circuit 22, to release the function conducting of key 10.

Meanwhile in the utility model embodiment, there is holding tank 23 on the outside of the shell 20, the press section 11 accommodates In the holding tank 23.Dubbing is provided between the side of the press section 11 and the circumferential inner sidewall of the holding tank 23 30.Double-protection is formed so as to the dubbing 30 between fitting projection portion 12 and the fit clearance of the key hole 21, Further increase the performance of waterproof liquid-proof.

For the resilience for improving the press section 11, the press-key structure 100 further includes elastic component 40, the elastic component 40 Be arranged in the holding tank 23 and with 11 elastic connection of press section.In the utility model embodiment, the elastic component 40 be spring, but is not limited to the concrete type of the elastic component 40, and the spring is only auxiliary member, can be selected according to their needs It selects and whether the spring is set.

In the above-described embodiments, the press section 11 and lug boss 12 are integrally formed.The key hole 21 may be designed as justifying Shape through-hole, the lug boss 12 is correspondingly cylindrical, and the cross-sectional diameter of the lug boss 12 is less than the circular through hole Cross-sectional diameter.The key hole 21 also may be designed as rectangular through-hole, and the lug boss 12 is correspondingly in a rectangular parallelepiped shape；It is described It can also be designed to triangle through hole for key hole 21, and the lug boss 12 is correspondingly in triangular prism shape etc..

Be not limited to the specific constructive form of press section 11 and lug boss 12 defined by the present embodiment, can according to itself It needs or the structure and shape of customer demand designed, designed press section 11 and lug boss 12.

In conclusion a kind of press-key structure 100 provided by the embodiment of the utility model, is formed double using dubbing 30 Layer waterproof layer, it is simple and easy, it reduces the high precision that key 10 is matched with shell 20 and requires, and dubbing itself Cost is relatively low, to reduce whole production cost, improves production yield and production efficiency.

The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model Protection scope within.

Claims (10)

1. a kind of press-key structure, which is characterized in that including key (10) and shell (20), offer key hole on the shell (21), circuit is equipped in the shell (20), the circuit and the key are electrically connected, and the key is at least partially across institute It states key hole (21), there are dubbing (30) between the key (10) and the inner wall of the key hole (21).

2. press-key structure as described in claim 1, which is characterized in that the dubbing (30) includes contact oil or lubricating oil One of.

3. press-key structure as described in claim 1, which is characterized in that the dubbing is along the key hole axial direction Thickness is less than the total length of the key hole.

4. press-key structure as described in claim 1, which is characterized in that the key (10) includes press section (11) and lug boss (12), the press section is located at the outside of the key hole (21), and the lug boss (12) passes through the key hole (21), In, the dubbing (30) is between the lug boss (12) and the key hole (21).

5. press-key structure as claimed in claim 4, which is characterized in that there are holding tank (23) on the outside of the shell (20), institute Press section (11) is stated to be contained in the holding tank (23).

6. press-key structure as claimed in claim 5, which is characterized in that the side of the press section (11) and the holding tank (23) dubbing (30) are provided between circumferential inner sidewall (231).

7. press-key structure as claimed in claim 5, which is characterized in that the press-key structure further includes elastic component (40), described Elastic component (40) setting in the holding tank (23) and with the press section (11) elastic connection.

8. press-key structure as claimed in claim 7, which is characterized in that the elastic component (40) is spring.

9. press-key structure as claimed in claim 4, which is characterized in that the key hole (21) is circular through hole, the protrusion Portion (12) is cylindrical, and the cross-sectional diameter of the lug boss (12) is less than the cross-sectional diameter of the circular through hole.

10. press-key structure as claimed in claim 4, which is characterized in that the press section (11) and lug boss (12) one at Type.