CN2446579Y

CN2446579Y - Waterproof keyboard

Info

Publication number: CN2446579Y
Application number: CN 00250566
Authority: CN
Inventors: 黄耀轮
Original assignee: Silitek Corp
Current assignee: Lite On Technology Corp
Priority date: 2000-09-08
Filing date: 2000-09-08
Publication date: 2001-09-05
Anticipated expiration: 2010-09-08

Abstract

The utility model relates to a waterproof keyboard which has a main structure that a thin film is arranged under a circuit unit of the keyboard, and the thin film is tightly connected with an elastic rubber body in an ultrasonic connection mode, a UV glue connection mode, etc., so that an airtight space is formed between the elastic rubber body and the thin film, and the circuit unit is sealed in the position between the elastic rubber body and the thin film. Therefore, an exhaustive waterproof function can be achieved. The utility model has excellent assembling convenience, and can effectively reduce manufacturing cost.

Description

Waterproff keyboard

The utility model relates to a kind of waterproff keyboard.

At present, along with the progress of science and technology, computing machine gradually enter into each company and family, keyboard is the important device that computing machine accepts message, if there is not keyboard, just can't input data, computing machine also just can't be carried out any work.

But, general traditional keyboard, its water proofing property extreme difference, as long as a water inlet (or beverage), keyboard promptly can't operate as normal, and can cause the short circuit of circuit unit, damages.All disclosed keyboard structure as patent cases such as No. the 194192nd, 254445,279523, Taiwan patent gazette Announcement Numbers.

Other has a kind of existing waterproff keyboard, as No. 236428 those disclosed herein of Taiwan patent gazette Announcement Number, its mainly in the loam cake bottom surface and base plate be provided with most corresponding column pipes and perforation, and the mat column pipe imports water in one liquid-collecting box of base plate bottom surface setting, available to prevent that flow of liquid from going into circuit unit, but this kind design, its structure is comparatively complicated, column pipe and perforation need be laid on the whole card, cause the inconvenience in the manufacturing, die cost is higher, and it is many to cause cost to improve, and it can't absolutely prevent sealing enter key dish inside.

As from the foregoing, above-mentioned existing keyboard on reality is used, obviously has inconvenience and exists with disappearance, and can wait to be improved.

Fundamental purpose of the present utility model is to overcome the prior art deficiency, and a kind of waterproff keyboard can be provided, and it has comprehensive water-proof function, and the assembling facility save time, production cost is low.

In order to reach above-mentioned purpose, the utility model provides a kind of waterproff keyboard, and this keyboard includes loam cake, button, pedestal and base plate, and installs with the screw locking, other has the rubber body to be arranged between button and the circuit unit, this rubber body have touch pressure cap with by key contacts; The circuit unit below of described keyboard is provided with a film, the rubber body fluid-tight engagement of this film and keyboard, and described circuit unit is sealed between rubber body and the film.

In the utility model, described rubber body edge extends to form housing downwards, and this circuit unit is contained in housing inside.

In the utility model, the shape of the film that described waterproof material is made is corresponding to the shape of rubber body.

In the utility model, described rubber body, circuit unit and film are provided with the perforation that runs through for screw, the perforated edge of this rubber body extends to form the flange of open column shape downwards, and the perforation of circuit unit is run through in this flange lower end, and with the flange fluid-tight engagement of film and rubber body.

In the utility model, described circuit unit has the winding displacement part of extending, this winding displacement of mat partly is connected to form electric the contact with a PC plate, this rubber body is provided with a holding part, this holding part is opening-like space, a bottom, this PC plate is contained in the holding part, and described film and holding part bottom margin fluid-tight engagement are sealed in the PC plate between holding part and the film.

Advantage of the present utility model and effect are: the circuit unit below of described keyboard is provided with the film of a waterproof material, the rubber body fluid-tight engagement of this film and keyboard, described circuit unit is sealed between rubber body and the film, it has comprehensive water-proof function, and assembling is convenient, finished product assembling man-hour and die cost can be reduced, and production cost can be effectively reduced.

Fig. 1 is a three-dimensional exploded view of the present utility model.

Fig. 2 is a sectional view of the present utility model.

Fig. 3 is an A enlarged drawing partly among Fig. 2.

Fig. 4 is a B enlarged drawing partly among Fig. 2.

Fig. 5 is the sectional view of another embodiment of the utility model.

Now the utility model is described in detail as follows in conjunction with prior art:

The waterproff keyboard that shows the utility model one embodiment as Fig. 1 and Fig. 2, this keyboard includes loam cake 10, button 11, rubber body 12, circuit unit 13, pedestal 14 and base plate 15 etc. and installs and utilize screw 16 locking compositions in regular turn, this rubber body 12 is arranged between button 11 and the circuit unit 13, and shake-up pressure cap 17 tops of this rubber body 12 contact with button 11.This circuit unit 13 has the winding displacement part 18 of extending, and this winding displacement of mat partly 18 electrical contact is connected to form electric the contact with a PC plate 19.

When this button 11 was pressed, button 11 was promptly depressed the shake-up pressure cap 17 of rubber body 12, made shake-up pressure cap 17 press circuit unit (film circuit board) 13 and made circuit turn-on, to form electric contact, made switch do the action of energising.When loosening this button 11, then utilize the elasticity of touching pressure cap 17, button 11 is replied original position, make switch do the action of outage.Returning above-mentioned keyboard structure and belong to prior art, is not the category that the utility model is applied for a patent, so do not given unnecessary details.

The utility model extends to form rubber body 12 edges downwards the housing 20 (as Fig. 3) of protrusion, make circuit unit 13 be contained in housing 20 inside, locating effect when the function accentuator unit 13 of this housing 20 is assembled in rubber body 12, also can be omitted (as Fig. 5), be provided with in addition a film (membrane) 21 made from waterproof material in these circuit unit 13 belows, these film 21 profiles are corresponding with rubber body 12, so that utilize ultrasonic to engage or UV glueds joint mode such as close with film 2, with rubber body 12 outer rim fluid-tight engagement, make to form an airtight space between rubber body 12 and the film 21, circuit unit 13 is sealed between rubber body 12 and the film 21.

In addition, rubber body 12, circuit unit 13 and film 21 are provided with the perforation 22 that runs through for

screw

16,23 and 24, for anti-sealing (or beverage) enters thus, the utility model extends to form the flange 25 (as Fig. 4) of open column shape downwards in perforation 22 edges of this rubber body 12, the perforation 23 of circuit unit 13 is run through in these flange 25 lower ends, and utilize ultrasonic to engage or UV glueds joint mode such as close with film 2, flange 25 fluid-tight engagement with rubber body 12, in order to prevent that sealing (or beverage) is by

perforation

22,23 and 24 enter between rubber body 12 and the film 21, circuit unit 13 are sealed between rubber body 12 and the film 21 guaranteeing.

Again, the utility model is in addition in one jiao of one-body molded holding part 26 that is provided with of rubber body 12 rear sides, this holding part 26 is opening-like space, a bottom, this PC plate 19 is contained in the holding part 26, and utilize ultrasonic to engage or UV glueds joint mode such as close with film 21 and holding part 26 bottom margin fluid-tight engagement, make to form an airtight space between this holding part 26 and the film 21, PC plate 19 is sealed between the holding part 26 and film 21 of rubber body 12; So, by the above-mentioned waterproff keyboard of the present utility model that is combined to form.

The utility model is placed in circuit unit 13 and PC plate 19 in the rubber body 12, and utilize a slice film 21 and rubber body 12 to connect airtight, circuit unit 13 and PC plate 19 are sealed fully, can have comprehensive water-proof function, can absolutely prevent sealing enter key dish inside, and it can keep the existing user mode of keyboard, user's sensation when operation is the same with conventional keyboard, can not have influence on user's operating habit, and its structure is comparatively simple, manufactures easily, has extremely excellent assembling convenience, can reduce finished product assembling man-hour and die cost, can significantly reduce production cost.

Claims

1, a kind of waterproff keyboard, this keyboard includes loam cake, button, pedestal and base plate, and installs with screw locking, other has the rubber body to be arranged between button and the circuit unit, this rubber body have the pressure cap of shake-up with by key contacts; It is characterized in that: the circuit unit below of described keyboard is provided with a film, the rubber body fluid-tight engagement of this film and keyboard, and described circuit unit is sealed between rubber body and the film.

2, waterproff keyboard as claimed in claim 1 is characterized in that: described rubber body edge extends to form housing downwards, and this circuit unit is contained in housing inside.

3, waterproff keyboard as claimed in claim 1 is characterized in that: the shape of the film that described waterproof material is made is corresponding to the shape of rubber body.

4, waterproff keyboard as claimed in claim 1, it is characterized in that: described rubber body, circuit unit and film are provided with the perforation that runs through for screw, the perforated edge of this rubber body extends to form the flange of open column shape downwards, the perforation of circuit unit is run through in this flange lower end, and with the flange fluid-tight engagement of film and rubber body.

5, waterproff keyboard as claimed in claim 1, it is characterized in that: described circuit unit has the winding displacement part of extending, this winding displacement of mat partly is connected to form electric the contact with a PC plate, this rubber body is provided with a holding part, this holding part is opening-like space, a bottom, this PC plate is contained in the holding part, and described film and holding part bottom margin fluid-tight engagement are sealed in the PC plate between holding part and the film.