CN201196921Y

CN201196921Y - Press key group

Info

Publication number: CN201196921Y
Application number: CNU2008200050852U
Authority: CN
Inventors: 萧振天
Original assignee: HELIN CORP
Current assignee: HELIN CORP
Priority date: 2008-04-25
Filing date: 2008-04-25
Publication date: 2009-02-18
Anticipated expiration: 2018-04-25

Abstract

The utility model provides a keystroke set, which is assembled on an operating panel of an electronic device. The keystroke set comprises a keycap, a keystroke base and an elastic lantern ring, wherein the lower plane of the keycap extends downwards to form a keystroke column, and the outer ring face of the keystroke column is formed with a first buckling part; the center of the keystroke base is provided with a through hole; the lower plane of the keystroke base extends to form a second buckling part; when the keystroke column passes through the through hole, the first buckling part formed on the outer ring of the keystroke column is buckled with the lower plane of the keystroke base; the lantern ring is arranged between the keycap and the keystroke base; and when the keystroke column of the keycap passes through the lantern ring, the keystroke column is movably assembled in the through hole of the keystroke base. The lantern ring has both elasticity and waterproof effect, thus the keystroke can restore automatically after being pressed, and the liquid infiltration from an assembling part of the keystroke set can be prevented, thereby improving the waterproof effect and saving the manufacturing cost effectively.

Description

A kind of key groups

Technical field

The utility model relates to a kind of press-key structure, relates in particular to the key groups on a kind of guidance panel that is mounted on electronic installation.

Background technology

Existing key groups, formed with a key body and a key base, behind user's pressing keys body, this key body can move down, up to pressing an electric conductor, this electric conductor then can spread out of a signal of telecommunication and give a central processing unit for processing, and shows this processing data later by a display unit; After the guidance panel combination of an existing key groups and an electronic installation finishes, in order to prevent to be present in the liquid on key groups surface, infiltrate by formed slit between key base and the guidance panel, and damage its inner circuit board, on key groups and guidance panel, glue especially and establish one deck waterproof membrane, this waterproof membrane glues the scope of establishing, comprise the slit between key groups, keyboard holder and key base and the guidance panel, so fall to the liquid on the keyboard, can not infiltrate to circuit board by described slit.But the sticking waterproof membrane of being located on the keyboard can hinder the smooth degree when pressing key groups, even might be pressed onto the key groups of non-original idea on every side, and because the user directly contacts this waterproof membrane, therefore get off for a long time, waterproof membrane will break, and the liquid on the surface of dropping can be infiltrated in it once again.Existing key groups utilizes spring to reach the effect of replying button, but because spring there is no water-proof function, if reach the words of not using waterproof membrane and having waterproof effect, must add the waterproof external member and reach good waterproof effect, therefore, its manufacturing cost just can increase, and therefore is necessary to be improved.

Summary of the invention

The utility model main purpose is to provide a kind of key groups, is mounted on the guidance panel of electronic installation, makes key groups have the waterproof effect.

For reaching above-mentioned purpose, the utility model provides a kind of key groups, comprises a button cap, a button post, a key base, a collar and a packing ring; In assembling, described button cap and described button post are shaped to one, and described button band of column edge face is arranged with a collar, and penetrate the formed open-work of described key base central authorities, to take shape in two relative first clamping parts of button cap bottom, be arranged in the outer plane of described key base bottom, and be sheathed on an end of the collar of described button post, be mounted on the open par of contiguous open-work in the described key base bottom, and the collar other end then is used for the support keys cap, and again, described button seat ring edge face periphery forms two second relative clamping parts, for the holder that is arranged in general keyboard, and this key base peripheral surface also is arranged with a packing ring; In the use, when pressing button cap, shrink the collar through extruding, the button post is extended by the open-work of key base central authorities, for contact one electric conductor, and send information to central processing unit for processing that circuit connects, and after stopping the pressing keys cap, button cap and button post can be pushed back original shape by the elastic force of the above-mentioned collar.

Advantage compared with prior art of the present utility model is, even liquid touches the key groups surface, can not infiltrate the circuit board to the key groups.

Description of drawings

Fig. 1 is the assembly assumption diagram of key groups described in the utility model;

Fig. 2 is the stereo appearance figure of key groups described in the utility model;

Fig. 3 is the enforcement illustration () of key groups described in the utility model;

Fig. 4 is the enforcement illustration (two) of key groups described in the utility model;

Fig. 5 is the enforcement illustration (three) of key groups described in the utility model.

Description of reference numerals: 10-key groups; The 101-button cap; 102-button post; 1021-first clamping part; 1021 '-the first clamping part; The 103-key base; The 1031-upper strata; 10311-first par; 1032-lower floor; The 10321-open-work; 10322-second par; 10323-second clamping part; 10323 '-the second clamping part; The 1033-lamp hole; The 1034-Transparent lamp shade; The 104-collar; The 105-packing ring; The 20-electric conductor; The 30-guidance panel; The 40-light-emitting component.

Embodiment

Below in conjunction with accompanying drawing, be described in more detail with other technical characterictic and advantage the utility model is above-mentioned.

See also Fig. 1 and Fig. 3, shown in the figure assembly assumption diagram and embodiment Fig. 1 of key groups described in the utility model, as shown in the figure, key groups 10 is made up of a button cap 101, a button post 102, a key base 103, a collar 104 and a packing ring 105, wherein:

Described key base 103 can be divided into upper strata 1031 and lower floor 1032; Described key base 103 1 sides form a lamp hole 1033, with to the light-emitting component 40 on the homogeneous electronic installation, described light-emitting component 40 can be light-emitting diode (LED), the light of described light-emitting component 40 can be dispersed by described lamp hole 1033, with as after button input, the back coupling indication of electronic installation acknowledge(ment) signal action is beneficial to and expresses the back coupling effect that button input back is produced.In addition, in the bottom of described lamp hole 1033 and group be provided with a Transparent lamp shade 1034, be used to cover described light-emitting component 40, to obtain the protection effect.And described Transparent lamp shade 1034 can have multiple color, so that the light of described light-emitting component 40 is by behind the described Transparent lamp shade 1034, and makes the light through Transparent lamp shade 1034 change color.

During assembling,,, be arranged in lower floor 1,032 one second par 10322 outward of described key base 103 by an open-work 10321 of described lower floor 1032 with two of described button post 102 bottoms relative first clamping part 1021, first clamping parts 1021 '; And establish the collar 104 of described button post 102 by group, to support described button cap 101.

The described collar 104 is made by flexible soft materials, and be shaped to a cover body shape, when described button post 102 is mounted on second par 10322 of described key base 103, be slightly larger than the external diameter of described open-work 10321 because of the open end internal diameter of the described collar 104, and the described collar 104 coatings are covered on the described open-work 10321, described open-work 10321 outsides are provided with one first par 10311, the usefulness that supplies the collar 104 1 ends to lean.After described button post 102 is mounted on described

key base

103,1032 of described upper strata 1031 and described lower floors form a confined space, because the materials of the described collar 104 itself have elasticity, can be for described button cap 101 and the described button post 102 required elastic force of remaining stationary.And the periphery of the lower floor 1032 of described key base 103 forms two relative second clamping part 10323, second clamping parts 10323 ', is arranged on the guidance panel of an electronic installation and can not comes off;

The sheathed described collar 104 around the button post 102 of the described key groups 10 of the utility model embodiment, to avoid liquid to pass through formed slit infiltration between described button cap 101 and the described key base 103, and damage circuit board under it, and lower floor 1031 peripheries of described key base 103, be arranged with another packing ring 105, described packing ring 105 also has the effect that prevents that liquid from infiltrating, and it prevents that liquid from being infiltrated by the slit around the described key base 103.

See also Fig. 2, it shown in the figure stereo appearance figure of the present utility model, as shown in the figure, the utility model key groups 10, can be installed on the guidance panel of an electronic installation, it is by second clamping part 10323, second clamping part 10323 ' of the lower floor 1032 of described key base 103, button is located at a buckling parts of the guidance panel of electronic installation, and by the described collar 104, described packing ring 105, except can conveying a message to CPU, can prevent that also liquid from infiltrating the circuit board of described key groups below for drive circuit board.

See also Fig. 3, it shown in the figure enforcement illustration of the present utility model (), as shown in the figure, please consult Fig. 1 simultaneously, the described key groups 10 of the utility model embodiment is by described second clamping part 10323, described second clamping part 10323 ', be arranged on the guidance panel 30 of electronic installation, and the key groups 10 of this moment is in the normal state, the action that button cap 101 is not pressed as yet, and the collar wherein 104 is in extended configuration, to support the elastic force of described button cap 101, can impel described button post 102 in key base 103, to regain, first clamping part 1021 up to described button post 102 bottoms, first clamping part, 1021 ' button is located at second par 10322; In addition, after liquid drops key groups 10 surfaces, it can infiltrate by formed slit between described key base 103 and the guidance panel, but when liquid infiltrates upper strata 1031 to described key base 103, liquid can be sheathed under packing ring 105 retainings of this lower floor 1032, and it is not fallen on the circuit board.

See also Fig. 4, it shown in the figure enforcement illustration (two) of the described key groups of the utility model embodiment, as shown in the figure, please consult Fig. 1 simultaneously, after pressing the button cap 101 of key groups 10, described button cap 101 can be executed a pressure to the described collar 104, the described collar 104 is shunk, and be close proximity on open first par 10311 on described upper strata 1031, and take shape in button post 102 under the described button cap 101, extend to the electric conductor of touching in the guidance panel 30 20 by described open-work 10321, make described electric conductor 20 can pass on a signal of telecommunication to give central processing unit, first clamping part 1021 of the button post 102 of this moment, first clamping part 1021 ' no longer is arranged on described second par 10322, and the bottom of described button post 102 reliably is combined on the electric conductor 20; In addition, after liquid drops key groups 10 surfaces, liquid can be attached to the slit between described button cap 101 and the described key base 103, but behind pressing keys cap 101, liquid can infiltrate in the key groups 10 by formed slit this moment, yet, be arranged with a collar 104 and cover described open-work 10321 around the described button post 102, therefore when liquid infiltrates 1031 inner spaces, described upper strata, also can't infiltrate the circuit board under the described open-work 10321, destroy it and conduct electricity effect.

See also Fig. 5, it shown in the figure enforcement illustration of the present utility model (three), as shown in the figure, after stopping to press described button cap 101, stored the collar 104 of suitable energy, this moment is just by contraction state, extended configuration when extending to normality gradually, and the described collar 104 can promote described button cap 101 simultaneously in the process that prolongs, it is separated with first par 10311, and return back to original state; And take shape in the button post 102 of button cap 101 belows, also can rise thereupon, and separate, stop to drive 20 pairs of CPU of described electric conductor and transmit signal with electric conductor 20.

In addition, the key base 103 of the described key groups 10 of the utility model embodiment, can make transparence, again described key base 103 is mounted on the keyboard holder with light-emitting diode, after the user pushed described button cap 101, an inductor of meeting start-up circuit plate was to start the shinny of light-emitting diode, from originally not having light, be easy to the user mode of the described key groups 10 of identification for the user to luminance.

In sum, after key groups described in the utility model is implemented, its collar has the effect of elasticity and waterproof simultaneously, the flexible member and the waterproof element that can replace existing key groups, and packing ring also has the effect of waterproof, and can reach really provides a kind of purpose of saving manufacturing cost and preventing the key groups of the circuit board that the liquid infiltration is inner.

More than explanation is just illustrative for the utility model; and it is nonrestrictive; those of ordinary skills understand; under the situation of the spirit and scope that do not break away from following claims and limited; can make many modifications; change, or equivalence, but all will fall in the protection range of the present utility model.

Claims

1, a kind of key groups, it is mounted on the guidance panel of an electronic installation, it is characterized in that, and it comprises:

One button cap, the downward elongation moulding of lower plane has a button post, and described button post outer ring surface forms one first clamping part;

One key base, central authorities offer an open-work, and described key base lower plane elongation moulding has one second clamping part, and after described button post wore described open-work, and described first clamping part of the outer ring forming of described button post is fastened on described key base lower plane;

The one rubber-like collar, the described collar after the described button post of the described button cap of confession wears, are mounted in the described open-work of described key base the activity of described button post between described button cap and described key base.

2, key groups as claimed in claim 1 is characterized in that, described key base baseplane group is provided with a packing ring.

3, key groups as claimed in claim 1, it is characterized in that described second clamping part of described key base is behind the described guidance panel through being mounted on described electronic installation, described second clamping part and described guidance panel root edge form card and establish, and emerge in described open-work to prevent described key base.

4, key groups as claimed in claim 1 is characterized in that, described key base one side forms a lamp hole.

5, key groups as claimed in claim 4 is characterized in that, the bottom group of described lamp hole is provided with a Transparent lamp shade.

6, key groups as claimed in claim 1 is characterized in that, described key base is mounted on the keyboard holder with light-emitting diode, and described key base is transparence.