CN2544397Y

CN2544397Y - Press-key structure for electronic products

Info

Publication number: CN2544397Y
Application number: CN 02234743
Authority: CN
Inventors: 陆国平
Original assignee: Asustek Computer Inc
Current assignee: Asustek Computer Inc
Priority date: 2002-05-10
Filing date: 2002-05-10
Publication date: 2003-04-09
Anticipated expiration: 2012-05-10

Abstract

A key pads structure of an electronic product comprises a direction key, a bottom cover board and a bugle. The direction key is a hollow shell structure consisting of an exterior key and an interior key, wherein, the exterior key is a little smaller than key hole and protrudes out of the shell, while the interior key is a little bigger than the key hole and is restricted between the shell and the circuit board. Besides, contacts at the bottom of the interior key are corresponding to the touch switches on the circuit board respectively, and the bottom cover board combines with the direction key and forms a containing space in which the bugle is arranged. The bugle is electrically connected with the circuit board through a conductive rubber. The utility model contains the bugle without increasing product thickness, area or reducing product screen size, thus appending audio function to the product.

Description

The press-key structure of electronic product

Technical field

The utility model relates to a kind of press-key structure, refers to a kind of press-key structure that is applied to electronic product especially.

Background technology

Along with constantly bringing forth new ideas of electronic technology and advancing by leaps and bounds of numeral science and technology, the 3C information products have become the some of life, or even the good assistant in the work.The 3C information products comprise notebook computer, mobile phone, PDA(Personal Digital Assistant) and palmtop computer (Palm) etc., and therefore personal digital assistant is liked by the consumer extensively owing to have powerful, easy to operate and light and handy portative advantage.For satisfying the demands of consumers, with the online of personal digital assistant combining wireless, communication and video/audio function, real is the developing direction of present stage personal digital assistant.

Figure 1 shows that the schematic diagram of personal digital assistant, comprise a shell 10, a display floater 12, a directionkeys 14 and a plurality of fast key 16, the surface of shell 10 offers a panel opening and a plurality of key hole, work in coordination with display floater 12, directionkeys 14 and fast key 16 respectively, wherein directionkeys 14 protrudes from the key hole with fast key 16, therefore, the user can be by operating personal digital assistant directionkeys 14 or pushing of fast key 16, and read the information that personal digital assistant provides by display floater 12.

Fig. 2 A, Fig. 2 B is depicted as the press-key structure schematic diagram of personal digital assistant in the prior art: comprise a directionkeys 21, one shell 22 and a circuit board 23, shell 22 surfaces are provided with a key hole 24, the shell structure that directionkeys 21 is made up of an external key 25 and an internal key 26, wherein external key 25 is slightly less than key hole 24, and internal key 26 is slightly larger than key hole 24, therefore external key 25 protrudes in outside the key hole 24, internal key 26 then is restricted between shell 22 and the circuit board 23, utilize elastic parts 27 (for example spring) to be connected to each other between itself and the circuit board 23, directionkeys 21 makes it to rotate to the skew that four direction is done by a small margin by the flexibility that elastic parts 27 is provided.

Directionkeys 21 is provided with four designated symbols on surface, four corners of external key 25 (upper and lower, left and right direction), then be provided with four contact points 28 in bottom, four corners of internal key 26 (upper and lower, left and right direction), and corresponding with four touch switches 29 on circuit board 23 surfaces respectively.When the user will operate the directionkeys 21 of personal digital assistant, push downwards by selected one of them designated symbol among four corners of external key 25, it is downward-sloping to cause directionkeys 21 to produce at the place of pushing, make the contact point 28 of internal key 26 touch the touch switch 29 of circuit board 23 in bottom, the place of pushing, this makes the instruction executive program that personal digital assistant is imported according to directionkeys 21, and the instruction of input is after the process calculation process, its result is presented on the display floater (not shown), and the user can obtain needed information by this display floater.

Yet, present personal digital assistant all emphasizes to have the function of audio-visual or mobile phone, possessing one of most important assembly of above-mentioned functions is exactly loudspeaker, and because the personal digital assistant that present stage produces will have competitiveness, must possess compact and screen is roomy etc. that characteristics can obtain liking of consumer, yet no matter prior art is the component design of inside or the arrangement of external key, all the space of enclosure is made full use of, be difficult to have again additional space to place loudspeaker.Therefore, do not increase the entire area of personal digital assistant if utilize prior art that loudspeaker are arranged in the front, usable floor area that just must the sacrificial section display floater; If loudspeaker are arranged in the front and do not reduce the usable floor area of display floater, just must increase the space of the entire area of personal digital assistant as the loudspeaker setting; And if loudspeaker are arranged in the back side, then must increase the thickness of personal digital assistant integral body, in addition, loudspeaker are located at the back, and not only effect is bad, and when its with after function of cellular phone combines, sound is exported by its rear and is easy to be eavesdropped by other people during use.

Utilize prior art, no matter take which kind of method design loudspeaker, all be difficult to satisfy designing requirement compact and that screen is roomy, so developer who is engaged in personal digital assistant or Related product, all be devoted to the improvement research and development of product, in the hope of can designing the product that meets above-mentioned requirements, and then improve the market competitiveness.

The utility model content

Technical purpose to be solved in the utility model is to provide a kind of press-key structure of electronic product, at the thickness that does not increase product integral body, area or under the situation that does not reduce the product screen area, loudspeaker is installed in wherein, makes product have the audio function.

In order to achieve the above object, the utility model provides a kind of press-key structure of electronic product, comprise a shell that is provided with key hole, one is positioned at this shell and is provided with circuit board and at least one directionkeys of a plurality of touch switches, it is characterized in that: this directionkeys is the hollow shell structure with under shed that an external key and an internal key are constituted, this external key is slightly less than this key hole and protrudes from this case surface, this internal key then be slightly larger than this key hole and be limited in this shell and this circuit board between, it is corresponding with the touch switch of this circuit board respectively that this internal key bottom also is provided with a plurality of contact points; This press-key structure also comprises a lower cover and loudspeaker, and the under shed of this lower cover and this directionkeys interosculates and forms an accommodation space; These loudspeaker place this accommodation space inside, and utilize conductive rubber to electrically connect between this circuit board.

In the such scheme, its characteristics are that this circuit board surface is provided with four touch switches on four different directions.

In the such scheme, its characteristics are that the external key surface of this directionkeys is provided with a plurality of designated symbols, and the contact point with this internal key bottom is corresponding respectively.

In the such scheme, its characteristics are that the designated symbol of this external key is four, and are located at four angles, upper and lower, left and right of this directionkeys respectively.

In the such scheme, its characteristics are that the contact point of this internal key bottom is a convex cylinder, then interosculate with block rubber in this touch switch surface, any direction of this directionkeys is under pressed state, and the convex cylinder of its bottom presses on this touch switch by this block rubber.

In the such scheme, its characteristics are that it is best that these loudspeaker are positioned in the centre of this accommodation space, and itself and the formed space of directionkeys are last audio amplifier, and itself and the formed space of bottom plate are following audio amplifier, and upper and lower audio amplifier can increase the audio quality of loudspeaker.

In the such scheme, its characteristics are the annular cover plate of this lower cover employing hollow out or are preset with the cover plate in conductive rubber hole that this conductive rubber passes this lower cover and electrically connects with this circuit board and this loudspeaker respectively.

In the such scheme, its characteristics are that this electronic product is a personal digital assistant.

When the directionkeys of operation personal digital assistant, the user is pushed downwards by selected one of them designated symbol among four corners of external key, it is downward-sloping that directionkeys is produced at the pressurized place, when the contact point of internal key in pressurized place bottom touches the touch switch of circuit board, the instruction executive program that personal digital assistant will be imported according to directionkeys.

Because the press-key structure of electronic product of the present utility model is installed on loudspeaker between directionkeys below and the bottom plate in the formed accommodation space, therefore make the utility model not increasing integral thickness, area and not reduce under the situation of screen area, be placed in loudspeaker among the personal digital assistant and produce audio.

Description of drawings

Fig. 1 is the schematic diagram of personal digital assistant;

Fig. 2 A, 2B are the press-key structure schematic diagram of personal digital assistant in the prior art

Fig. 3 is a circuit board schematic diagram of the present utility model;

Fig. 4 A, 4B are the press-key structure schematic diagram of the utility model electronic product.

Embodiment

The utility model is a kind of press-key structure of electronic product, utilize the inner formed space of directionkeys that loudspeaker are placed in wherein, make the applied electronic product of the utility model (for example personal digital assistant), can not increase integral thickness, area and not reduce under the situation of screen area, have the audio function, existing details are as follows with preferred embodiment and related embodiment in conjunction with the accompanying drawings.

The press-key structure of the utility model electronic product is applied to personal digital assistant or associated electrical product, but no matter be to be applied to that a kind of product, this product inside all must be provided with a circuit board 30 and cooperate with the press-key structure of the utility model electronic product, and the employed circuit board of present embodiment 30 surfaces are provided with a plurality of touch switches 32, as shown in Figure 3.

Fig. 4 A, 4B are depicted as the press-key structure schematic diagram of the utility model electronic product, comprise a directionkeys 40, a lower cover 41 and loudspeaker 42, directionkeys 40 is made up of an external key 43 and an internal key 44, it is one to have the hollow shell structure of under shed, and wherein external key 43 is slightly less than key hole 24 internal keies 44 and then is slightly larger than key hole 24.Therefore when directionkeys 40 was inserted in key hole 24 by the inside of shell 22, internal key 43 protruded from shell 22 surface internal keies 44 and then is limited between shell 22 and the circuit board 30.External key 43 is respectively equipped with four designated symbols in four corners (upper and lower, left and right) on its surface, also be respectively equipped with four contact points 45 in the bottom, four corners (upper and lower, left and right) of internal key 44 simultaneously, and it is corresponding with four touch switches 32 on circuit board 30 surfaces respectively, wherein this contact point 45 is a convex cylinder, then can interosculate with block rubber in touch switch 32 surfaces.When arbitrary designated symbol is subjected to pushing on the directionkeys 40, convex cylinder will be pushed the touch switch 32 of circuit board 30 by block rubber, make above-mentioned press-key structure produce preferable touch-control effect.

Opening under lower cover 41 and the directionkeys 40 interosculates and forms an accommodation space, 42 on loudspeaker place among lower cover 41 and the directionkeys 40 formed accommodation spaces, then utilize conductive rubber 46 to electrically connect between itself and the circuit board 30, therefore this lower cover 41 can be the annular cover plate of hollow out or the covering plate structure that is preset with the conductive rubber hole, makes conductive rubber 46 can pass lower cover 41 and electrically connects with circuit board 30 and loudspeaker 42 respectively.The position of wherein placing loudspeaker 42 is best with the centre, its with directionkeys 40 between formed space as last audio amplifier, its with lower cover 41 between formed space conduct time audio amplifier, upper and lower audio amplifier can increase the audio quality of loudspeaker.

When the directionkeys of operation personal digital assistant, the user is pushed downwards by selected one of them designated symbol among four corners of external key, it is downward-sloping that directionkeys is produced at the pressurized place, when the contact point of internal key in pressurized place bottom touches the touch switch of circuit board, the instruction executive program that personal digital assistant will be imported according to directionkeys.Because the utility model is installed on loudspeaker between directionkeys below and bottom plate among the formed accommodation space, therefore make the utility model not increasing integral thickness, area and not reduce under the situation of screen area, be placed in loudspeaker among the personal digital assistant and produce audio.

Formed space is placed in loudspeaker wherein between directionkeys below and the circuit board because the utility model utilizes, to personal digital assistant generally speaking, can say so can not increase its thickness, area fully, certainly also can not sacrifice the area of display floater, therefore can make personal digital assistant of the present utility model have the function of audio, in terms of existing technologies, the utility model dark tool market competitiveness of can saying so.

Certainly; the above only is the preferred embodiment of the press-key structure of the utility model electronic product; be not in order to limit practical range of the present utility model; and do not limit the personal digital assistant field that is applied to yet; any those skilled in the art; all should belong to scope of the present utility model in the equivalent modifications of being done under spirit of the present utility model, therefore protection range of the present utility model ought be a foundation with the claim.

Claims

1, a kind of press-key structure of electronic product comprises circuit board and at least one directionkeys that a shell, that is provided with key hole is positioned at this shell and is provided with a plurality of touch switches, it is characterized in that:

This directionkeys is the hollow shell structure with under shed that an external key and an internal key are constituted, this external key is slightly less than this key hole and protrudes from this case surface, this internal key then be slightly larger than this key hole and be limited in this shell and this circuit board between, it is corresponding with the touch switch of this circuit board respectively that this internal key bottom also is provided with a plurality of contact points; And

This press-key structure also comprises a lower cover and loudspeaker, and the under shed of this lower cover and this directionkeys interosculates and forms an accommodation space; These loudspeaker place this accommodation space inside, and utilize conductive rubber to electrically connect between this circuit board.

2, the press-key structure of electronic product as claimed in claim 1 is characterized in that the external key surface of described directionkeys is provided with a plurality of designated symbols, and the contact point with this internal key bottom is corresponding respectively.

3, the press-key structure of electronic product as claimed in claim 2, the designated symbol that it is characterized in that described external key is four, and is located at four angles, upper and lower, left and right of this directionkeys respectively.

4, the press-key structure of electronic product as claimed in claim 1, the contact point that it is characterized in that described internal key bottom is a convex cylinder, then interosculate with block rubber in this touch switch surface, the any direction of this directionkeys is under pressed state, and the convex cylinder of its bottom presses on this touch switch by this block rubber.

5, the press-key structure of electronic product as claimed in claim 1 is characterized in that the space that forms between described loudspeaker and the lower cover forms the following audio amplifier of loudspeaker.

6, the press-key structure of electronic product as claimed in claim 1 is characterized in that the space that forms between described loudspeaker and the directionkeys forms the last audio amplifier of loudspeaker.

7, the press-key structure of electronic product as claimed in claim 1, it is characterized in that described lower cover adopts the annular cover plate of hollow out or is preset with the cover plate in conductive rubber hole, this conductive rubber passes this lower cover and electrically connects with this circuit board and this loudspeaker respectively.

8, the press-key structure of electronic product as claimed in claim 1 is characterized in that described electronic product is a personal digital assistant.