CN201282054Y

CN201282054Y - Keyboard structure

Info

Publication number: CN201282054Y
Application number: CNU200820134806XU
Authority: CN
Inventors: 邱灯锋
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-09-03
Filing date: 2008-09-03
Publication date: 2009-07-29
Anticipated expiration: 2018-09-03

Abstract

The utility model relates to a keyboard structure includes a bottom plate, a flexible circuit board, an insulating board, a plurality of elastic elements and a plurality of keys. The insulating board is a key component used for fixing and assembling keys, improving the bottom plate on no requirement for punching and formation to have raised rib plates, and saving cost for assembly. The keyboard structure is as follows: the flexible circuit board is laid on the bottom plate, the insulating board is laid on the flexible circuit board, the keys are assembled on the insulating board, and the elastic elements are assembled between the corresponding keys and the flexible circuit board.

Description

Keyboard structure

Technical field

The utility model relates to a kind of keyboard structure, refers to a kind of keyboard structure that uses insulation board to fix and assemble button especially.

Background technology

As shown in Figures 1 and 2, the structure of existing keyboard 10 comprises a metal base plate 90, one flexible circuit boards 70, a plurality of flexible member 75 and a plurality of button 15.

Wherein, described metal base plate 90 is used to support described flexible circuit board 70 and for above a plurality of buttons 15 are assembled in.For this reason, described metal base plate 90 must have the first fin sheet 91 and the second fin sheet 95 with the punch forming on the position of correspondence assembling button 15 of described metal base plate 90 through punch process.Wherein, the described first fin sheet 91 is L-shaped, has a bearing groove 92; And the described second fin sheet 95 is also L-shaped, has a chute 96.

Described flexible circuit board 70 is provided with printed circuit (figure do not paint), and also forms breach (figure does not paint) on the position of the first fin sheet 91 of corresponding described metal base plate 90 and the second fin sheet 95.After above described flexible circuit board 70 is laid on described metal base plate 90, the first fin sheet 91 of described metal base plate 90 and the second fin sheet 95 will pass the breach of described flexible circuit board 70 and expose out.

Described flexible member 75 is elastomers that inside is provided with striking piece (figure do not paint), and its assembling mode is the assembling position of corresponding button 15, is installed in above the described flexible circuit board 70 with its bottom.Entopic the time, the striking piece of described flexible member 75 can not touch the printed circuit of described flexible circuit board 70, but in a single day when being pressed down, the striking piece of described flexible member 75 will touch the printed circuit of described flexible circuit board 70, and then produce input signal.

Described button 15 is made of jointly a keycap 20 and a scissor connecting rod 30, wherein, described keycap 20 has a lid shape body 21, and the back side of described body 21 is provided with pair of bearing 23 and a pair of slide rail piece 25, and utilizes described slide rail piece 25 to make left and right sides side respectively have a chute 26.

The structure of described scissor connecting rod 30, be to be coupled to the pivot joint fulcrum jointly by one first support 40 and one second support 50, described pivot joint fulcrum is positioned at the linkage of the centre of first support 40 and second support 50, and have a hollow groove 32 jointly after the assembling, when assembling, place by this hollow groove 32 for described flexible member 75.

The upper end of described first support 40 is a stiff end, and the left and right sides of the stiff end of described first support 40 respectively is provided with a pivot 46, is attached to pivot joint in the bearing pedestal 23 of described keycap 20.The lower end of described first support 40 is a free end, and the free-ended left and right sides of described first support 40 respectively is provided with a slide block 48, during assembling, in the chute 96 with the second fin sheet 95 that can free manner be inserted in described metal base plate 90.

The upper end of described second support 50 is a free end, and the free-ended left and right sides of described second support 50 respectively is provided with a slide block 58, during assembling, can free manner being inserted in the chute 26 of described keycap 20.The lower end of described second support 50 is a stiff end, and the left and right sides of the stiff end of described second support 50 respectively is provided with a pivot 56, is attached to pivot joint in the bearing groove 92 of the first fin sheet 91 of described metal base plate 90.

As shown in Figure 2, after a plurality of buttons 15 and described metal base plate 90, flexible circuit board 70 and a plurality of flexible member 75 are formed described keyboard 10 jointly, when in a single day the button 15 on the described keyboard 10 is pressed down, the slide block 58 of second support 50 of the scissor connecting rod 30 of described button 15, can in the chute 26 of described keycap 20, produce lateral sliding, simultaneously, the slide block 48 of first support 40 of the scissor connecting rod 30 of described button 15 can produce lateral sliding in the chute 96 of the second fin sheet 95 of described metal base plate 90.

So, the scissor connecting rod 30 of described button 15 will be guided corresponding keycap 20 and be produced the stroke of downward translation, and oppress the printed circuit that the striking piece of being located at the flexible member 75 between this keycap 20 and the flexible circuit board 70 touches flexible circuit board 70, and then generation input signal, and in case after pressing down the strength disappearance of this keycap 20, utilize the restorable characteristic of oppressed flexible member 75 meetings again, guide corresponding keycap 30 upwards translation and homing again with the scissor connecting rod 30 that forces described button 15.

But, the metal base plate 90 of this existing keyboard 10 must punch forming have the first fin sheet 91 and the second fin sheet 95, and the shortcoming that increases assembly cost is arranged.

The utility model content

Therefore, main purpose of the present utility model is promptly providing a kind of keyboard structure, and it can solve the problem of the necessary punch process of metal base plate of existing keyboard.

The utility model provides a kind of keyboard structure, comprise a base plate, a flexible circuit board, an insulation board, a plurality of flexible member and a plurality of button, wherein, described flexible circuit board, flexible member and button are the general existing normally used Common Component of keyboard, but described insulation board is a critical components, except being used for fixing and assembling the button, and facilitate described base plate to be modified to needn't the lobed fin of punch forming, so have the advantage of saving assembly cost.

Described base plate is that metal or plastic material are made, be laid on this above base plate for flexible circuit board, be laid on this above flexible circuit board for described insulation board again, with the fixing and described button of assembling, and each flexible member is assembled between the keycap and this flexible circuit board of corresponding button.

The assembling position of the corresponding corresponding button of described insulation board is provided with a plurality of connection modules, each connects module and comprises a hollow groove, and the left and right sides of described hollow groove, respectively be provided with one first projection and one second projection, and this first projection is provided with a bearing groove and this second projection is provided with a chute; So, the pivot of second support of the scissor connecting rod of respective keys, the bearing groove of first projection of the connection module that connects to go into described insulation board will be articulated, and the slide block of first support of the scissor connecting rod of respective keys, will be with the chute inside of second projection of the connection module that can sliding type be nested into described insulation board.

Described button is made of jointly a keycap and a scissor connecting rod, and the keycap shape of described button is square or rectangle lid shape.

After described base plate, flexible circuit board, insulation board, a plurality of flexible member and a plurality of button mutual group become keyboard structure of the present utility model, as long as the button of keyboard is pressed down, corresponding flexible member will be along with being pressed down, and the printed circuit of flexible circuit board is produced input signal.

Keyboard of the present utility model is to use the fixing and assembling button of described insulation board, and described base plate needn't the lobed fin of punch forming, so have the advantage of saving assembly cost.

Description of drawings

Fig. 1 is existing keyboard structure schematic diagram.

Fig. 2 is the part section structure enlarged drawing of the keyboard of Fig. 1 along the a-a tangent line.

Fig. 3 is the button exploded view of keyboard structure partial enlarged drawing shown in the utility model and use thereof.

Fig. 4 is the keyboard structure exploded view shown in the utility model.

Fig. 5 is the part section structure enlarged drawing of the keyboard of Fig. 3 along the b-b tangent line.

Reference numeral

10,11...... keyboard 15...... button

20...... keycap 21...... body

23...... bearing pedestal 25...... slide rail piece

26...... the scissor connecting rod of chute 30......

32...... hollow groove 40...... first support

46...... pivot 48...... slide block

50...... the second support 56...... pivot

58...... slide block 60...... insulation board

61...... connect module 62...... hollow groove

63...... the first projection 64...... bearing pedestal

65...... the second projection 66...... chute

70...... flexible circuit board 73...... printed circuit

75...... flexible member 80...... base plate

90...... the metal base plate 91...... first fin sheet

92...... the bearing groove 95...... second fin sheet

96...... chute

Embodiment

To shown in Figure 5, the structure of keyboard 11 of the present utility model comprises a base plate 80, a flexible circuit board 70, an insulation board 60, a plurality of flexible member 75 and a plurality of button 15 as Fig. 3.

Described button 15 is made of jointly a keycap 20 and a scissor connecting rod 30.Wherein, described keycap 20 has a lid shape body 21, be square lid shape or rectangle lid shape, and the back side of described body 21 is provided with pair of bearing 23 a pair of slide rail pieces 25, and utilize described slide rail piece 25 to make left and right sides side respectively have a chute 26.

The structure of described scissor connecting rod 30, be to be coupled to the pivot joint fulcrum jointly by one first support 40 and one second support 50, described pivot joint fulcrum is positioned at the linkage of the centre of first support 40 and one second support 50, and have a hollow groove 32 jointly after the assembling, when assembling, place by this hollow groove 32 for described flexible member 75.

The upper end of described first support 40 is a stiff end, and respectively is provided with a pivot 46 at the left and right sides of the stiff end of this first support 40, is attached to pivot joint in the bearing pedestal 23 of described keycap 20; The lower end of described first support 40 is a free end, and respectively is provided with a slide block 48 at the free-ended left and right sides of this first support 40, is used for being nested into described insulation board 60 with free manner.

The upper end of described second support 50 is a free end, and respectively is provided with a slide block 58 at the free-ended left and right sides of this second support 50, during assembling, in the chute 26 with the slide rail piece 25 that can free manner be inserted in described keycap 20; The lower end of described second support 50 is a stiff end, and respectively is provided with a pivot 56 at the left and right sides of the stiff end of this second support 50, is attached to described insulation board 60 with pivot joint.

Described base plate 80 is made for metal or plastic material, is used to support described flexible circuit board 70 and insulation board 60, and is assembled into this insulation board 60 for described a plurality of buttons 15.

Described flexible circuit board 70 is provided with printed circuit 73, be laid on above the described base plate 80, and described insulation board 60 is laid on above the described flexible circuit board 70.

Described flexible member 75 is elastomers that inside is provided with striking piece (figure does not paint), its assembling mode is the assembling position of corresponding button 15, be installed in above the described flexible circuit board 70 with its bottom, in a single day and when being pressed down, the striking piece of described flexible member 75 will touch the printed circuit 73 of described flexible circuit board 70, and then produce input signal.

On the plate face of described insulation board 60, the assembling position of corresponding button 15 is provided with a plurality of connection modules 61.Each structure that connects module 61 comprises a hollow groove 62, place by this hollow groove 62 when the assembling for described flexible member 75, and described hollow groove 62 each side be provided with one first projection 63 and one second projection 65.Wherein, described first projection 63 is provided with a bearing groove 64, supplies the pivot 56 of second support 50 of described scissor connecting rod 30 to articulate wherein; Described second projection 65 is provided with a chute 66, supplies the slide block 48 of first support 40 of described scissor connecting rod 30 to be inserted in wherein with free manner.

As Fig. 3 and shown in Figure 5, after a plurality of buttons 15 and described base plate 80, flexible circuit board 70 and a plurality of flexible member 75 are formed described keyboard 10 jointly, each flexible member 75 is installed in this above flexible circuit board 70 with the assembling position of the corresponding button 15 of correspondence, and place scissor connecting rod 30, be assembled between the keycap 20 and this flexible circuit board 70 of corresponding button 15 by this insulation board 70 and corresponding button 15.

When the button 15 of keyboard 11 of the present utility model is pressed, the slide block 58 of second support 50 of the scissor connecting rod 30 of described button 15 can produce lateral sliding in the chute 26 of described keycap 20, simultaneously, the slide block 48 of first support 40 of the scissor connecting rod 30 of described button 15 can produce lateral sliding in the chute 66 of second projection 65 of the connection module 61 of described insulation board 60.

So, the scissor connecting rod 30 of described button 15 will be guided corresponding keycap 20 and be produced the stroke of downward translation, and oppress the printed circuit that the striking piece of being located at the flexible member 75 between this keycap 20 and the flexible circuit board 70 touches flexible circuit board 70, and then generation input signal, and in case after pressing down the strength disappearance of this keycap 20, utilize the restorable characteristic of flexible member 75 meetings again, guide corresponding keycap 30 upwards translation and homing again with the scissor connecting rod 30 that forces described button 15.

In sum, keyboard 11 of the present utility model is to use described insulation board 60 fixing and assembling buttons 15, and described base plate 80 needn't the lobed fin of punch forming, so have the advantage of saving assembly cost.

Above said content is the preferable specific embodiment of the utility model, creation purpose every and of the present utility model and the effect that can reach constitute so-called equivalence or equalization, and belonging to those skilled in the art can unlabored simple and easy modification, modification, improvement or variation, should all not break away from the claim scope that the utility model is contained opinion.

Claims

1. a keyboard structure comprises a base plate, a flexible circuit board, an insulation board, a plurality of flexible member and a plurality of button, it is characterized in that,

This base plate is that metal or plastic material are made;

This flexible circuit board is laid on this above base plate, and this flexible circuit board is provided with printed circuit;

This insulation board is laid on this above flexible circuit board, and this insulation board is provided with a plurality of connection modules with the assembling position of the corresponding button of correspondence, wherein, each connects module and comprises a hollow groove, and described hollow groove each side be provided with one first projection and one second projection, and this first projection is provided with a bearing groove and this second projection is provided with a chute;

Each button is made of jointly a keycap and a scissor connecting rod, and wherein, the back side of this keycap is provided with pair of bearing and a pair of chute; This scissor connecting rod is the linkage that is articulated connection by one first support and one second support jointly, wherein, the upper end left and right sides of this first support respectively is provided with a pivot, and articulate the bearing pedestal that is attached to this keycap, the lower end left and right sides of this first support respectively is provided with a slide block, and with the chute inside of second projection of the connection module that can sliding type be nested into this insulation board; The upper end left and right sides of this second support respectively is provided with a slide block, and can sliding type to be nested into the chute inside of this keycap, the lower end left and right sides of this second support respectively is provided with a pivot, and articulates the bearing groove of first projection of the connection module that is attached to this insulation board;

Each flexible member is installed in this above flexible circuit board with the assembling position of the corresponding button of correspondence, and place scissor connecting rod by this insulation board and corresponding button, be assembled between the keycap and this flexible circuit board of corresponding button, and this flexible member is along with corresponding keycap is pressed down, and this flexible member just produces input signal to the printed circuit of flexible circuit board.

2. a kind of keyboard structure as claimed in claim 1 is characterized in that, the keycap shape of this button is square or rectangle lid shape.