CN2280955Y

CN2280955Y - Key-board switch of note-book type computer

Info

Publication number: CN2280955Y
Application number: CN 96221277
Authority: CN
Inventors: 蔡锦成; 卓文得; 许复任
Original assignee: Chicony Electronics Co Ltd
Current assignee: Chicony Electronics Co Ltd
Priority date: 1996-11-13
Filing date: 1996-11-13
Publication date: 1998-05-06
Anticipated expiration: 2006-11-13

Abstract

The utility model relates to a keyboard switch of a notebook PC, which comprises a key cap, a first linkage bracket, a second linkage bracket, an elastic touch body, a soft circuit board and a bottom board, wherein the soft circuit board and the elastic touch body are arranged on the bottom board, the second linkage bracket is matched into two rotary holes of the bottom board through two rotary shafts, the first linkage bracket is matched into two slide holes of the bottom board through two slide shafts, and the first linkage bracket is matched with a pivot of the second linkage bracket through a pivot hole. The two linkage brackets form cross connection. The key cap is respectively matched with the two rotary shafts of the first linkage bracket and the two slide shafts of the second linkage bracket through hooks of the two linkage brackets and fixing grooves of the two linkage brackets.

Description

The keyboard switch of laptop

The utility model relates to a kind of keyboard switch of laptop, and it is a kind of assembling, it is comparatively convenient to change, and what keycap can be stable moves up and down, and breaks in the time of can improving intensity and prevent to tear open group or stretch bending modification and can reduce the keyboard switch of height.

A kind of keyboard switch of existing laptop as shown in Figure 1, this keyboard switch 10a mainly touches body 12a, the first linkage support 13a, the second linkage support 14a, FPC 15a and base plate 16a etc. by keycap 11a, elasticity and constitutes, this keycap 11a is positioned at the first linkage support 13a and the second linkage support 14a top of cross-shaped setting, do parallel up and down when mobile when keycap 11a is subjected to two interlock support 13a, 14a guiding, the elasticity of keycap 11a below is touched body 12a can press or leave FPC 15a, makes switch do ON or OFF action.

Yet, above-mentioned existing keyboard switch is because the fixed orifice 18a of base plate 16a adopts inclined design, therefore keycap 11a can produce the phenomenon of swing up and down, and two are linkage support 13a, the 14a two side insufficient strength of Contraband type, keycap 11a is swung, so unstable when keycap 11a moves up and down.In addition because two interlock support 13a, the axis body 19a of 14a, it between 20a a harder entity design, elastic deformation design when not assembling, be not easy during assembling, and when assembling, damage keycap 11a easily by pressure, only there is space, the place ahead to allow the axis body 20a of linkage support 14a enter because of keycap 11a below during its assembling, therefore keycap 11a has special angle when assembling, easily pressing because of keycap 11a mistake damages keycap 11a, moreover, its base plate 16a and the first linkage support 13a, the fixed orifice 17a of the second linkage support 14a junction and 18a intensity a little less than, when tearing group open, broken or the stretch bending modification easily, when keyboard switch is assembled on the keyboard of laptop, in operating process, laptop can produce very big heat, makes its job stability relatively poor.

Fundamental purpose of the present utility model is to provide a kind of keyboard switch of laptop, and its keycap can not produce the phenomenon of up and down swing, moves up and down so that keycap can be stable.

A purpose more of the present utility model is to provide a kind of keyboard switch of laptop, it makes second linkage support more or less freely with combining of keycap, base plate, avoiding the time damaging keycap or base plate by pressure, and be not easy to press keycap is damaged because of the mistake of keycap in assembling.

Another purpose of the present utility model is to provide a kind of keyboard switch of laptop, and it can shed the heat that laptop itself produces to atmosphere, and is very helpful to the job stability of laptop.

Another purpose of the present utility model is to provide a kind of keyboard switch of laptop, and it can avoid keycap to be adsorbed on the elasticity shake-up body.

A purpose more of the present utility model is to provide a kind of keyboard switch of laptop, its assembling button part need be with other instrument, and do not need screw, to omit the cost of screw, can conveniently assemble, change, also have and improve intensity, break when preventing to tear open group or advantage such as stretch bending modification.

The purpose of this utility model is to realize like this, a kind of keyboard switch of laptop promptly is provided, it comprises: a keycap, its inside center place is provided with an elasticity and touches the body reference column, the periphery also is provided with air discharge duct, one side is provided with two interlock bracket clamp hooks, and opposite side is provided with two interlock support pickup grooves; One first linkage support, it is located at the keycap below, it has the support body that two corresponding center sections are camber, the support body center section respectively is provided with a pivot hole, connect one with a connecting link between two support bodys, connecting link is provided with an inner fovea part, and two support bodys, one end respectively is provided with a rotation axis, and two these other ends respectively are provided with a sliding axle; One second linkage support, it is located at the keycap below, and it has a ring-like support body, support body two sides respectively are provided with a pivot, extend to form the elastic arm of four symmetries before and after support body two side direction, respectively be provided with a rotation axis on two elastic arms of front side, respectively be provided with a sliding axle on rear side two elastic arms; One elasticity is touched body, and it is located at first linkage support and second linkage support below, and its base portion is provided with several perforation, and elasticity shake-up body inside is provided with one and presses portion; One FPC, it is located at elasticity and touches the body below, which is provided with several punchings, respectively adds the fixing viscose glue of using around the punching; One base plate, it is located at the FPC below, which is provided with two rotation holes and two sliding eyes, and rotation hole and sliding eye bottom respectively are provided with perforation, and described rotation hole and sliding eye take shape on the hole seat that is bending; Described FPC and elasticity are touched body and are placed on the base plate, the perforation that the rotation hole of base plate and sliding eye touch body by the punching and the elasticity of FPC protrudes from the top base surface that elasticity is touched body, second linkage support is matched with in two rotation holes of base plate with two rotation axiss, first linkage support is matched with in two sliding eyes of base plate with sliding axle, the pivot hole of first linkage support cooperates with the pivot of second linkage support, two interlock supports are a staggered form and connect, and keycap is matched with two rotation axiss of first linkage support and two sliding axles of second linkage support respectively with two interlock bracket clamp hooks and two interlock support pickup grooves.

The advantage of the utility model device is, assembles, changes conveniently, structural strength height, good heat dissipation, working stability, reliable.

Below in conjunction with accompanying drawing, embodiment of the present utility model is described, wherein:

Fig. 1 is the floor map of the keyboard switch of existing laptop;

Fig. 2 is a three-dimensional exploded view of the present utility model;

Fig. 3 A is the utility model side-looking action synoptic diagram one;

Fig. 3 B is the utility model side-looking action synoptic diagram two;

Fig. 4 A is the utility model side-looking action synoptic diagram three;

Fig. 4 B is the utility model side-looking action synoptic diagram four;

Fig. 5 A is that the utility model is overlooked combination synoptic diagram one;

Fig. 5 B is that the utility model is overlooked combination synoptic diagram two;

Fig. 5 C is that the utility model is overlooked combination synoptic diagram three;

Fig. 5 D is that the utility model is overlooked combination synoptic diagram four.

See also shown in Fig. 2,3A, 4A, the 5D, the keyboard switch of the utility model laptop includes keycap 10, first linkage support 20, second linkage support 30, elasticity shake-up body 40, FPC 50 and base plate 60, wherein this keycap 10 generally is the cap body of a square, and its inside top surface center is provided with an elasticity and touches body reference column 14; This elasticity is touched body reference column 14 peripheries and is provided with air discharge duct 11, keycap 10 inside top surface, one side also is provided with two interlock bracket clamp hooks 12, opposite side is provided with two interlock support pickup grooves 13, other also can be provided with locating channel 15 in keycap 10 inside top surface two sides, can guide combining of keycap 10 and two interlock supports 20,30.

This first linkage support 20 is located at keycap 10 belows, it has the support body 21 that two corresponding center sections are camber, support body 21 center sections respectively are provided with a pivot hole 22,21 of two support bodys connect one with a connecting link 23, in the middle of the connecting link 23 and be provided with an inner fovea part 26, two support bodys 21 1 ends and respectively be provided with a rotation axis 24, this rotation axis 24 is positioned at support body 21 same ends with connecting link 23, two rotation axiss 24 are corresponding shape, and two support bodys, 21 other ends respectively are provided with a sliding axle 25, two sliding axles 25 and are corresponding shape.

This second linkage support 30 is located at keycap 10 belows, it has a ring-like support body 31, these support body 31 2 sides respectively are provided with a pivot 32, each extends to form four

elastic arms

33,34 that all around is symmetrical forwards, backwards support body 31 2 sides, respectively be provided with a rotation axis 35 on two elastic arms 33 of front side, two rotation axiss 35 are corresponding shape, respectively are provided with a sliding axle 36, two sliding axles 36 on rear side two elastic arms 34 and are corresponding shape.

This elasticity is touched body 40 and is located at first linkage support 20 and second linkage support, 30 belows, each group keycap 10, first linkage support 20 and second linkage support, 30 belows are established a corresponding elasticity and are touched body 40, this elasticity is touched body 40 and generally is bowl-shape, the base portion 41 that elasticity is touched body 40 is provided with

several perforation

42,43, described

perforation

42,43 has thermolysis, elasticity shake-up body 40 inside are provided with one and press portion 44, elasticity is touched body 40 and base portion 41 bottom surfaces and is provided with air discharge duct 45, and elasticity is touched body 40 end faces and is provided with a center pit 46.

This FPC 50 is located at elasticity and is touched body 40 belows, be provided with several punchings 51,52 corresponding to each group keycap 10, first linkage support 20 and second linkage support, 30 belows on it, it is fixing respectively to add viscose glue 53 around the punching 51,52, in case stop bit moves and water and other infiltrate as liquid such as beverages, so can make keypad function keep normal, and when punching, can keep dimensional stability and handling ease.

This base plate 60 is located at FPC 50 belows, be provided with two corresponding to each group keycap 10, first linkage support 20 and the 30 direct punching presses of second linkage support on it and can fix the rotation hole 61 of second linkage support 30, reach two and can fix the sliding eye 62 of first linkage support 20, rotation hole 61 and sliding eye 62 bottoms respectively are provided with perforation 63,64, usefulness for the heat radiation of bottom electrical brain server, this rotation hole 61 and sliding eye 62 respectively take shape in

hole seat

65 and 66, described

hole seat

65 and 66 and be bending.

See also shown in Fig. 5 A to 5D, the utility model is when combination, at first FPC 50 and elasticity are touched body 40 and be placed in regular turn on the base plate 60, and make rotation hole 61 on the

hole seat

65 and 66 of base plate 60 and sliding eye 62 by punching 51,52 and bore a hole and 42,43 run through and protrude from base portion 41 end faces (shown in Fig. 5 A) that elasticity is touched body 40; Then be matched with second linkage support 30 in two rotation holes 61 of base plate 60 with its two rotation axis 35, make second linkage support 30 be hubbed at base plate 60 (shown in Fig. 5 B), it utilizes the rigidity of hole seat 65 bending parts of base plate 60, force the elastic arm 33 of second linkage support 30 to produce recoverable elastic deformation, to cooperate with the rotation hole 61 of base plate 60; Slip into first linkage support 20 in two sliding eyes 62 that are matched with base plate 60 with its sliding axle 25 more in advance, make first linkage support 20 be hubbed at base plate 60, and with first linkage support, 20 past pressing down, the pivot hole 22 of first linkage support 20 is cooperated with the pivot 32 of second linkage support 30, connect (shown in Fig. 5 C) so that two interlock supports 20,30 are a staggered form; The last keycap 10 that will place the top again, press down so that vertical direction is past, can make the two interlock bracket clamp hooks 12 and the two interlock support pickup grooves 13 of keycap 10 be matched with two rotation axiss 24 of first linkage support 20 and two sliding axles 36 (shown in Fig. 5 D) of second linkage support 30 respectively, to form the keyboard switch of a laptop.

See also Fig. 3 A, 3B, 4A, 4B, during keycap 10 pressurizeds, be subjected to first linkage support 20 and downward parallel displacement is done in the guiding of second linkage support 30, the portion that presses 44 that makes elasticity touch body 40 presses FPC 50, make switch do ON action (shown in Fig. 3 B and Fig. 4 B), when decontroling keycap 10, touch the elastic force of body 40 by elasticity, and upwards parallel displacement is done in the guiding that is subjected to first linkage support 20 and second linkage support 30, FPC 50 leaves in the portion that presses 44 that makes elasticity touch body 40, makes switch do OFF action (shown in Fig. 3 A and Fig. 4 A).

Be respectively equipped with

perforation

42,43, punching 51,52 on body 40, FPC 50 and the base plate 60 and bore a hole 63,64 etc. because elasticity of the present utility model is touched, the heat that laptop itself produces can be shed to atmosphere, very helpful to the job stability of laptop.Keycap 10 of the present utility model is provided with air discharge duct 11, touches the effect that body 40 can have exhaust with respect to elasticity, touches on the body 40 to avoid keycap 10 to be adsorbed in elasticity.

Moreover when keycap 10 moved to bottom dead centre, the connecting link 23 of first linkage support 20 can touch base portion 41 end faces that elasticity is touched body 40 earlier, reached the effect (shown in Fig. 3 B) of noise reduction.In addition, be the support body 31 2 side contacts areas increasing of part with second linkage support 30 of camber in the middle of the support body 21 of first linkage support 20 of the present utility model, can effectively reduce the degree of rocking after keycap 10 makes up, and two sliding axles 25 of first linkage support 20 are matched with in two sliding eyes 62 of base plate 60, sliding eye 62 is not the employing inclined design, so keycap 10 can not produce the phenomenon of swing up and down.

In addition, particular design by second linkage support 30 of the present utility model, there is not directivity during assembling, effect with convenient assembling, elastic arm 33 by second linkage support 30, the design of 34 open type elastic deformation, have and make two rotation axiss 35 and two sliding axles, 36 elasticity enter the effect of two interlock support pickup grooves 13 of the rotation hole 61 of base plate 60 and keycap 10, so that second linkage support 30 and keycap 10, base plate 60 in conjunction with more or less freely, to avoid when assembling, the damaging two interlock support pickup grooves 13 of keycap 10 or the rotation hole 61 of base plate 60 by pressure, and elastic arm 33, the design of 34 open type elastic deformation, be not easy keycap 10 to be damaged because of the mistake pressure of keycap 10, in addition because the connecting link 23 of first linkage support 20 is provided with an inner fovea part 26, can make connecting link 23 have elasticity, make two rotation axiss, 24 elasticity enter two interlock bracket clamp hooks 12 of keycap 10, be out of shape to prevent first linkage support, 20 2 ends.

The utility model is bending with hole seat 65 designs of base plate 60, utilize the rigidity of bending, the characteristic that cooperates second linkage support, 30 plastic cement elastic deformations, can make second linkage support 30 be easy to assembling, and the whole group of combination button part need can not finished from beginning to be incorporated into, and not need screw with other instrument, with the cost of saving screw, and can conveniently assemble, change; The utility model is bending with hole seat 66 designs of base plate 60, the slip that also has the sliding axle 25 that does not influence first linkage support 20, and because the front end of bending is the sliding eye 62 of sealing, but not open pore is so have the intensity of raising, prevent to tear open and break when organizing or advantage such as stretch bending modification.Keycap 10 of the present utility model is provided with an elasticity and touches body reference column 14, it can be matched with elasticity and touch in the center pit 46 of body 40, has the effect of location, and when pressing keycap 10, can contact the portion of pressing 44 with reference column 14, to guarantee electric shake-up stability (shown in Fig. 4 B).Plate during the utility model also omits, and can reduce the thickness that elasticity is touched the base portion 41 of body 40, to reduce whole height.

Claims

1, a kind of keyboard switch of laptop is characterized in that, it comprises:

One keycap, its inside center place is provided with an elasticity and touches the body reference column, and the periphery also is provided with air discharge duct, and a side is provided with two interlock bracket clamp hooks, and opposite side is provided with two interlock support pickup grooves;

One first linkage support, it is located at the keycap below, it has the support body that two corresponding center sections are camber, the support body center section respectively is provided with a pivot hole, connect one with a connecting link between two support bodys, connecting link is provided with an inner fovea part, and two support bodys, one end respectively is provided with a rotation axis, and the two support body other ends respectively are provided with a sliding axle;

One second linkage support, it is located at the keycap below, and it has a ring-like support body, support body two sides respectively are provided with a pivot, extend to form the elastic arm of four symmetries before and after support body two side direction, respectively be provided with a rotation axis on two elastic arms of front side, respectively be provided with a sliding axle on rear side two elastic arms;

One elasticity is touched body, and it is located at first linkage support and second linkage support below, and its base portion is provided with several perforation; Elasticity shake-up body inside is provided with one and presses portion;

One FPC, it is located at elasticity and touches the body below, which is provided with several punchings, respectively adds the fixing viscose glue of using around the punching;

One base plate, it is located at the FPC below, which is provided with two rotation holes and two sliding eyes, and rotation hole and sliding eye bottom respectively are provided with perforation, and described rotation hole and sliding eye take shape on the hole seat that is bending;

Described FPC and elasticity are touched body and are placed on the base plate, the perforation that the rotation hole of base plate and sliding eye touch body by the punching and the elasticity of FPC protrudes from the top base surface that elasticity is touched body, second linkage support is matched with in two rotation holes of base plate with two rotation axiss, first linkage support is matched with in two sliding eyes of base plate with sliding axle, the pivot hole of first linkage support cooperates with the pivot of second linkage support, two interlock supports are a staggered form and connect, and keycap is matched with two rotation axiss of first linkage support and two sliding axles of second linkage support respectively with two interlock bracket clamp hooks and two interlock support pickup grooves.

2, the keyboard switch of laptop as claimed in claim 1 is characterized in that, described elasticity is touched body and the base portion bottom surface is provided with air discharge duct.

3, the keyboard switch of laptop as claimed in claim 1 is characterized in that, described keycap inside top surface two sides are provided with locating channel.