CN201282054Y - Keyboard structure - Google Patents

Abstract

The utility model relates to a keyboard structure, including a base plate, a flexible circuit board, an insulating plate, a plurality of elastic elements and a plurality of keys, wherein the insulating plate is a key component, used to fix and assemble the keys, and the base plate is improved to have protruding ribs without stamping, which can save assembly costs. The keyboard structure is that the base plate is provided with the flexible circuit board, and the insulating plate is provided with the flexible circuit board, and the keys are assembled on the insulating plate, 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 keyboard structure, in particular to a keyboard structure using insulating plates to fix and assemble keys.

Background technique

As shown in FIGS. 1 and 2 , the structure of the conventional keyboard 10 includes a metal bottom plate 90 , a flexible circuit board 70 , a plurality of elastic elements 75 and a plurality of keys 15 .

Wherein, the metal bottom plate 90 is used to support the flexible circuit board 70 and a plurality of buttons 15 are assembled thereon. For this reason, the metal bottom plate 90 must be stamped, and the metal bottom plate 90 is stamped to form a first protruding rib 91 and a second protruding rib 95 at the position corresponding to the assembly button 15 . Wherein, the first protruding rib 91 is L-shaped and has a bearing groove 92 ; and the second protruding rib 95 is also L-shaped and has a slide groove 96 .

The flexible circuit board 70 is provided with a printed circuit (not shown in the figure), and gaps are also formed at the positions of the first rib 91 and the second rib 95 of the metal base 90 (not shown in the figure). painted). When the flexible circuit board 70 is laid on the metal base plate 90, the first rib 91 and the second rib 95 of the metal base 90 will pass through the flexible circuit board. 70 gap and exposed.

The elastic element 75 is an elastic body with a striking block (not shown) inside, and its assembly method is corresponding to the assembly position of the button 15 , and its bottom is fixed on the above-mentioned flexible circuit board 70 . When in the normal position, the strike block of the elastic element 75 will not touch the printed circuit of the flexible circuit board 70, but once it is pressed down, the strike block of the elastic element 75 will The blocks will touch the printed circuit of the flexible circuit board 70, thereby generating the input signal.

The key 15 is composed of a key cap 20 and a scissors-type connecting rod 30, wherein the key cap 20 has a box-shaped body 21, and a pair of bearing seats 23 are provided on the back of the body 21 And a pair of slide rail blocks 25, and using the slide rail blocks 25 to make the left and right sides each have a slide groove 26.

The structure of the scissors link 30 is that a first support 40 and a second support 50 are jointly connected to form a pivot point, and the pivot point is located at the connection between the first support 40 and the second support 50. The rod mechanism has a hollow slot 32 after assembly, through which the elastic element 75 passes through the hollow slot 32 during assembly.

The upper end of the first bracket 40 is a fixed end, and the left and right sides of the fixed end of the first bracket 40 are respectively provided with a pivot 46 to be pivotally connected to the bearing housing 23 of the keycap 20 . The lower end of the first bracket 40 is a free end, and the left and right sides of the free end of the first bracket 40 are respectively provided with a slider 48, which can be inserted into the metal bottom plate 90 in a freely movable manner during assembly. Inside the slide groove 96 of the second protruding rib 95 .

The upper end of the second bracket 50 is a free end, and the left and right sides of the free end of the second bracket 50 are respectively provided with a slider 58, which can be inserted into the keycap 20 in a freely movable manner during assembly. Inside the chute 26. The lower end of the second bracket 50 is a fixed end, and the left and right sides of the fixed end of the second bracket 50 are respectively provided with a pivot 56 to pivotally connect to the first rib of the metal bottom plate 90 91 in the bearing groove 92.

As shown in Figure 2, when the keyboard 10 is composed of a plurality of keys 15 together with the metal base plate 90, the flexible circuit board 70 and a plurality of elastic elements 75, once the keys 15 on the keyboard 10 are pressed When pressing down, the slider 58 of the second bracket 50 of the scissors linkage 30 of the key 15 can slide sideways in the chute 26 of the key cap 20, and at the same time, the key 15 The slider 48 of the first bracket 40 of the scissors-type linkage 30 can slide laterally in the slide groove 96 of the second convex rib 95 of the metal bottom plate 90 .

Therefore, the scissor link 30 of the key 15 will guide the corresponding keycap 20 to produce a downward translation stroke, and press the contact of the elastic element 75 arranged between the keycap 20 and the flexible circuit board 70 . The strike block touches the printed circuit of the flexible circuit board 70, thereby generating an input signal, and once the force of pressing down on the keycap 20 disappears, the compressed elastic element 75 will return to its original shape, so as to force the The scissor link 30 of the key 15 then guides the corresponding keycap 30 to translate upward and return to its original position.

However, the metal bottom plate 90 of the conventional keyboard 10 must be stamped to form the first rib 91 and the second rib 95 , which has the disadvantage of increasing the assembly cost.

Utility model content

Therefore, the main purpose of the present utility model is to provide a keyboard structure, which can solve the problem that the metal bottom plate of the existing keyboard must be stamped.

The utility model provides a keyboard structure, which comprises a bottom plate, a flexible circuit board, an insulating board, a plurality of elastic elements and a plurality of keys, wherein the flexible circuit board, elastic elements and keys are generally existing A common component commonly used in keyboards, but the insulating plate is a key component, in addition to being used to fix and assemble the keys, and promotes the improvement of the bottom plate so that it does not need to be stamped and formed with raised ribs, so it saves assembly costs The advantages.

The base plate is made of metal or plastic, and the flexible circuit board is laid on the base plate, and the insulating plate is laid on the flexible circuit board to fix and assemble the buttons, and each Each elastic element is assembled between the keycap of the corresponding button and the flexible circuit board.

The insulating plate is provided with a plurality of connection modules corresponding to the assembly positions of the corresponding buttons, each connection module includes a hollow groove, and the left and right sides of the hollow groove are respectively provided with a first protrusion and a The second projection, and the first projection is provided with a bearing groove and the second projection is provided with a chute; therefore, the pivot of the second bracket of the scissors linkage of the corresponding button is pivotally connected into the The bearing groove of the first bump of the connecting module of the insulating plate, and the slider of the first bracket of the scissors linkage of the corresponding key will be slidably inserted into the connecting module of the insulating plate Inside the slide groove of the second bump.

The key is composed of a key cap and a scissors-type connecting rod, and the key cap of the key is in the shape of a square or rectangular box cover.

After the keyboard structure of the present utility model is composed of the base plate, the flexible circuit board, the insulating board, a plurality of elastic elements and a plurality of keys, as long as the keys of the keyboard are pressed down, the corresponding elastic elements will be pressed down accordingly. , and generate an input signal to the printed circuit of the flexible circuit board.

The keyboard of the utility model uses the insulating plate to fix and assemble the keys, and the bottom plate does not need to be punched and formed to have raised ribs, so it has the advantage of saving assembly costs.

Description of drawings

Fig. 1 is a schematic diagram of the existing keyboard structure.

FIG. 2 is an enlarged view of a partial cross-sectional structure of the keyboard of FIG. 1 along a tangent line a-a.

Fig. 3 is a partially enlarged view of the structure of the keyboard shown in the utility model and an exploded view of the keys used.

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

FIG. 5 is an enlarged view of a partial cross-sectional structure of the keyboard of FIG. 3 along the tangent line b-b.

reference sign

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

20...Keycap 21...Body

23...Bearing seat 25...Sliding rail block

26...Chute 30...Scissors link

32...Hollow groove 40...First bracket

46...pivot 48...slider

50...second bracket 56...pivot

58...Slider 60...Insulation board

61...Connection module 62...Hollow groove

63...First bump 64...Bearing seat

65...the second bump 66...the chute

70......Flexible circuit board 73......Printed circuit

75...elastic element 80...bottom plate

90...Metal bottom plate 91...The first convex rib

92......Bearing groove 95......Second convex rib

96...... Chutes

Detailed ways

As shown in FIGS. 3 to 5 , the structure of the keyboard 11 of the present invention includes a bottom plate 80 , a flexible circuit board 70 , an insulating plate 60 , multiple elastic elements 75 and multiple keys 15 .

The key 15 is composed of a key cap 20 and a scissors link 30 . Wherein, the keycap 20 has a lid-shaped body 21, which is in the shape of a square lid or a rectangle lid, and a pair of bearing blocks 23 and a pair of slide rail blocks 25 are provided on the back side of the body 21, and the The slide rail block 25 has a sliding groove 26 on the left and right sides respectively.

The structure of the scissors link 30 is that a first support 40 and a second support 50 are jointly connected to form a pivot point, and the pivot point is located in the middle of the first support 40 and a second support 50. The connecting rod mechanism and after assembly have a hollow slot 32 together, for the elastic element 75 to pass through the hollow slot 32 during assembly.

The upper end of the first bracket 40 is a fixed end, and a pivot shaft 46 is respectively provided on the left and right sides of the fixed end of the first bracket 40, so as to be pivotally connected to the bearing seat 23 of the keycap 20; The lower end of the first bracket 40 is a free end, and a sliding block 48 is respectively provided on the left and right sides of the free end of the first bracket 40 , for being inserted into the insulating board 60 in a freely movable manner.

The upper end of the second bracket 50 is a free end, and a slider 58 is respectively provided on the left and right sides of the free end of the second bracket 50. When assembling, the slider 58 can be inserted into the keycap 20 in a freely movable manner. In the chute 26 of the rail block 25; the lower end of the second bracket 50 is a fixed end, and a pivot 56 is respectively provided on the left and right sides of the fixed end of the second bracket 50 to pivotally connect to the insulating plate 60.

The bottom plate 80 is made of metal or plastic, and is used to support the flexible circuit board 70 and the insulation board 60 , and for the plurality of buttons 15 to be assembled on the insulation board 60 .

The flexible circuit board 70 is provided with a printed circuit 73 laid on the bottom plate 80 , and the insulating board 60 is laid on the flexible circuit board 70 .

The elastic element 75 is an elastic body with a striking block (not shown) inside, and its assembly method is to correspond to the assembly position of the button 15, and its bottom is fixed on the above-mentioned flexible circuit board 70, and Once pressed down, the striking block of the elastic element 75 will touch the printed circuit 73 of the flexible circuit board 70 to generate an input signal.

On the board surface of the insulating board 60 , a plurality of connecting modules 61 are provided corresponding to the assembly positions of the keys 15 . The structure of each connecting module 61 includes a hollow slot 62 for the elastic element 75 to pass through the hollow slot 62 during assembly, and the left and right sides of the hollow slot 62 are respectively provided with a first protrusion 63 and a second bump 65 . Wherein, the first protrusion 63 is provided with a bearing groove 64, for the pivot 56 of the second bracket 50 of the scissors linkage 30 to be pivotally connected therein; the second protrusion 65 is provided with a sliding groove 66, for the slider 48 of the first bracket 40 of the scissors linkage 30 to be nested therein in a freely movable manner.

As shown in Figures 3 and 5, when the keyboard 10 is composed of a plurality of keys 15, the base plate 80, the flexible circuit board 70 and a plurality of elastic elements 75, each elastic element 75 corresponds to a corresponding The assembly position of the button 15 is fixed on the flexible circuit board 70, and the scissor-type connecting rod 30 passing through the insulating board 70 and the corresponding button 15 is assembled on the keycap 20 of the corresponding button 15 and the flexible circuit board 70. between circuit boards 70 .

When the button 15 of the keyboard 11 of the present utility model is pressed, the slider 58 of the second bracket 50 of the scissors-type linkage 30 of the button 15 can generate sideways in the chute 26 of the keycap 20. At the same time, the slider 48 of the first bracket 40 of the scissors linkage 30 of the button 15 can be in the chute 66 of the second protrusion 65 of the connecting module 61 of the insulating plate 60 Create a sideways slide.

Therefore, the scissor link 30 of the key 15 will guide the corresponding keycap 20 to produce a downward translation stroke, and press the contact of the elastic element 75 arranged between the keycap 20 and the flexible circuit board 70 . The strike block touches the printed circuit of the flexible circuit board 70, thereby generating an input signal, and once the force of pressing down the key cap 20 disappears, the elastic element 75 will return to its original shape, so as to force the key 15 The scissor link 30 then guides the corresponding keycap 30 to translate upward and return to its original position.

To sum up, the keyboard 11 of the present invention uses the insulating plate 60 to fix and assemble the keys 15, and the bottom plate 80 does not need to be stamped to have raised ribs, so it has the advantage of saving assembly costs.

The above-mentioned content is the preferred specific embodiment of the utility model, and all constitute the so-called equivalent or equality with the creation purpose of the utility model and the effect that can be achieved, and belong to the simple modification that can be easily completed by those skilled in the art, Modifications, improvements or changes shall not deviate from the scope of claims covered by the present invention.

Claims (2)

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.

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