CN206134522U

CN206134522U - Liftable keyboard structure

Info

Publication number: CN206134522U
Application number: CN201621193336.5U
Authority: CN
Inventors: 韩永隆; 黄启峰
Original assignee: Microjet Technology Co Ltd
Current assignee: Microjet Technology Co Ltd
Priority date: 2016-10-28
Filing date: 2016-10-28
Publication date: 2017-04-26
Anticipated expiration: 2026-10-28

Abstract

The utility model provides a liftable keyboard structure, is applicable to the portable computer, and it includes upper cover and base, and liftable keyboard structure includes: an at least button, membrane switch circuit layer and micropump, each button has the key cap of pressing and elastic element, the membrane switch circuit layer has air inlet and gas vent, and the air inlet sets up corresponding to the opening of elastic element's cavity, micropump includes: communicate in the entry of air inlet and communicate in the export of gas vent, when the sensor induction of the base of portable computer is close to the upper cover, make micropump actuate to make gas in elastic element's the cavity flow through by open side down the air inlet of membrane switch circuit layer and micropump's entry, flow by the export again and discharge to the gas vent, borrow this elastic element's compression deformation, drive and press the downward displacement of key cap, with the height of reduction button.

Description

Liftable keyboard structure

【Technical field】

This case be with regard to a kind of keyboard structure, it is espespecially a kind of that there is Micropump, and liftable keyboard structure.

【Background technology】

In the information age now, computer has become electronics and IT products indispensable during everyone lives.With make User is most directly related, is exactly the peripheral input device of computer, including：Mouse, keyboard, handwriting pad ... etc., wherein, keyboard dress Putting to be available for users to and directly key in word and symbol, and can pass through keyboard carries out writing and compiling for a variety of secretarial documents in computer Operation is collected, is all to need to configure keyboard with almost all of computer, so that user is easy to be input into word and symbol, obvious keyboard Importance.

Fig. 1 is referred to, and which is schematic diagram to be seen outside known keyboard.As illustrated, keyboard 1 applies to notes type electricity Brain, and there is base plate 11 and multiple buttons 10, the configuration mode of these multiple buttons 10 can have because of the design of Ge Jia manufacturers Institute is different, and so which mainly corresponds respectively to different English/Chinese characters, numeral and symbol etc., in order to for user with Finger presses these buttons 10, and then to trigger corresponding signal, and its corresponding function can be performed in computer.

Fig. 2 is referred to, which is the cross-sectional view of known keyboard.As illustrated, keyboard 1 has base plate 11 and multiple Button 10, each of which button 10 are made up of button cap 101, scissor connecting element 102 and flexible member 103, shears Formula connecting element 102 is connected to button cap 101, and flexible member 103 then corresponds to button cap 101 and arranges.The base plate 11 of button 1 Then sequentially include the structures such as film switch circuit 12, distance piece 13, gripper shoe 14 and lower house 15, but be not limited, wherein Film switch circuit 12 is to include wiring board 121, sealing coat 122 and lower wiring board 123, and upper wiring board 121, sealing coat 122 and lower wiring board 123 be all with made by light transmissive material, but to be also not limited.And, in film switch circuit 12 With more multiple key switches 124, and these key switches 124 correspond to the center of each flexible member 103, be with When the button cap 101 of user pressing keys 10, then can produce downward stress, and make scissor connecting element 102 with Stretching swings, and makes 101 downward pressuring elastic element 103 of button cap, makes flexible member 103 be produced deformation by stress, and then The key switch 124 that thin film closes the border circuit 12 can be pressed, and exports the push button signalling corresponding to button 10.

Again as shown in Fig. 2 the gripper shoe 14 of base plate 11 is correspondingly arranged under film switch circuit 12, for supporting Film switch circuit 12, lower house 15 are then correspondingly arranged under gripper shoe 14, using as protection gripper shoe 14 and thin film switch Circuit 12 is used.In some known technologies, distance piece 13 is then arranged on film switch circuit 12, and is correspondingly arranged in every Between one button 10, and two it is adjacent between be with accommodation space 131, with for each corresponding button 10 between spacing body 13 Scissor connecting element 102 and flexible member 103 be disposed therein.Therefore as illustrated, the button 10 of known keyboard 1 Button cap 101 can be higher than distance piece 13 because of the support of scissor connecting element 102 and flexible member 103, and work as user When pressing its button cap 101, then can be as it was previously stated, make scissor connecting element 102 swing strain stretch, and flexible member 103 Correspond to downward deformation and trigger key switch 124, and exportable corresponding push button signalling, now button cap 101 can be because of user Reduced by compressive stress downwards height so that button cap 101 is sunk down in the accommodation space 131 of distance piece 13；However, work as making User stop press the button cap 101 when, flexible member 103 then can the deformation upwards in response to the elastic restoring force, and then stop Triggering key switch 124, you can stop exporting the push button signalling, now button cap 101 can be promoted because of the deformation of flexible member 103 And reset is shifted up, scissor connecting element 102 also can be driven and be replied its original state by button cap 101, therefore button Cap 101 eventually returns back to the position which is higher than distance piece 13.

However, with the slimming designer trends that the electronic installation of society's pursuit now is light, thin, be easy to carry about with one, it is known that key Disk 1 can be difficult to reduce its whole height because the button cap 101 has certain altitude, and then cause to be difficult to subtract overall volume It is little, and cause product heaviness, be difficult to lightening disappearance.Therefore, how developing one kind can improve above-mentioned known technology disappearance, can Improve keyboard and button design, and then reach the liftable keyboard structure of frivolous portable purpose, actually compel at present to be essential Problem to be solved.

【Utility model content】

The main purpose of this case is to provide a kind of liftable keyboard structure, through the start of Micropump, with to button Flexible member is evacuated, and is caused flexible member to produce deformation and compress downwards, to drive button cap to bottom offset, and then can be dropped The height of low button, that is, reduce the integral thickness of liftable keyboard structure, so that portable computer is closed in upper lid is entire When, integral thickness can be more reduced, and reaches the purpose of lightening design.

It is that the one broader aspect of implementing of this case is to provide a kind of liftable keyboard structure up to above-mentioned purpose, it is adaptable to One portable computer, the portable computer include a Shang Gai and a base, and the base has an induction apparatuss, the liftable keyboard knot Structure includes：An at least button, each button have a button cap and a flexible member, and the flexible member corresponds to the button Cap and arrange, and have a cavity；One film switch circuit layer, with an at least air inlet and an at least air vent, this is at least One air inlet corresponds to an opening of the cavity of the flexible member and arranges；And a Micropump, it is correspondingly arranged in the thin film Under on-off circuit layer, and including：One entrance and an outlet, the entrance are communicated in this of the film switch circuit layer and at least one enter QI KOU, the outlet is in an at least air vent for the film switch circuit layer；Wherein, when the base of the portable computer The induction apparatuss sense when covering close on this, make the Micropump be evacuated start, so that the gas in the cavity of the flexible member By the cavity should Open Side Down sequentially flow through the film switch circuit layer at least an air inlet and the Micropump the entrance, Into in the Micropump, then it is flow to an at least air vent for the film switch circuit layer and discharged by the outlet, by the elasticity The cavity of element makes the flexible member produce compressive deformation because of gas extraction, and then drives the button cap to bottom offset, with Reduce the height of an at least button.

It is that, up to above-mentioned purpose, another broader enforcement aspect of this case is suitable for provide a kind of liftable keyboard structure In a portable computer, the portable computer includes a Shang Gai and a base, and the base has an induction apparatuss, the liftable keyboard Structure has：An at least button, each button have a button cap and a flexible member, and the flexible member is pressed corresponding to this Keycap and arrange, and have a cavity；One film switch circuit layer, with an at least air inlet and an at least air vent, this is extremely A few air inlet corresponds to an opening of the cavity of the flexible member and arranges；And a Micropump, it is correspondingly arranged in this thin Under membrane switch circuit layer, and including：One entrance, an outlet and a piezo-activator, the entrance are communicated in the thin film switch electricity An at least air inlet for road floor, the outlet is in an at least air vent for the film switch circuit layer；Wherein, when this can Take the base of formula computer the induction apparatuss sense on this cover it is close when, make the piezo-activator start of the Micropump, and then Change the gas collection chamber volume in the Micropump, pressure differential is produced to promote gas to flow, through the pumping start of the Micropump, So that gas in the cavity of the flexible member by the cavity should Open Side Down the Jing film switch circuit layer this at least One air inlet flow to the entrance of the Micropump, then flow to the outlet, and an at least air vent for the Jing film switch circuit layers Discharge, the cavity of the flexible member produces compressive deformation because gas is extracted out whereby, and then drives the button cap to bottom offset, To reduce the height of an at least button.

【Description of the drawings】

Fig. 1 be known keyboard outside see schematic diagram.

Fig. 2 is the cross-sectional view of known keyboard.

Lifting illustrative views of the Fig. 3 for the liftable keyboard structure of this case preferred embodiment.

Cross-sectional views of Fig. 4 A for the liftable keyboard structure and its Micropump of this case preferred embodiment.

Fig. 4 B are the lifting illustrative view of the liftable keyboard structure and its Micropump shown in Fig. 4 A.

【Symbol description】

1：Keyboard

10：Button

101：Button cap

102：Scissor connecting element

103：Flexible member

11：Base plate

12：Film switch circuit

121：Upper wiring board

122：Sealing coat

123：Lower wiring board

124：Key switch

13：Distance piece

131：Accommodation space

14：Gripper shoe

15：Lower house

2：Portable computer

2a：Upper lid

2a1：Magneticss

2b：Base

2b1：Induction apparatuss

20：Liftable keyboard structure

21、21’、21”：Button

210：Button cap

211：Scissor element

212：Flexible member

212a：Cavity

212b：Opening

22：Film switch circuit layer

221：Air inlet

222：Air vent

23：Micropump

230：Exit plate

230a：Entrance

230b：Outlet

230c：Entrance temporary storage cavity

230d：Outlet temporary storage cavity

230e：Communication channel

230f、232d：Convex portion structure

231：Valve sheet

231a：Valve opening

232：Gas collection plate

232a：Gas collection chamber

232b：First through hole

232c：Second through hole

233：Piezo-activator

233a：Suspension board

233b：Piezoelectric ceramic plate

234：Resonance plate

234a：Hollow bore

235：Inlet plate

235a：Air inlet

235b：Conflux round

235c：Central recess

236：Conducting strip

237a、237b：Insulating trip

h：Shift length

【Specific embodiment】

Some exemplary embodiments for embodying this pattern characteristics with advantage will be described in the explanation of back segment in detail.It should be understood that This case can have various changes, its scope all without departing from this case, and explanation therein and diagram in different aspects Inherently it is illustrated as being used, and nand architecture is in restriction this case.

Fig. 3 is referred to, which is the lifting illustrative view of the keyboard for this case preferred embodiment.As illustrated, this case Liftable keyboard structure 20 is to be applied in portable computer 2, for example：Notebook computer, hand-held electronic device or its In his portable electronic devices, by taking the present embodiment as an example, portable computer 2 is to be but not be limited to notebook computer.Yu Benshi Apply in example, portable computer 2 has upper lid 2a and base 2b, and base 2b is to be but not be limited to a box body structure, to be installed with Circuit board and electronic component of liftable keyboard structure 20 and its inside etc., upper lid 2a are then corresponded to and are covered on base 2b, with The liftable keyboard structure 20 of protection base 2b and its circuit board and electronic component of inside, in order to being easy to carry beneficial to user And use.Wherein, liftable keyboard structure 20 includes multiple buttons 21,21 ', 21 ", right the plurality of button 21,21 ', 21 " Quantity and configuration mode are can to appoint to apply change according to situation is actually applied, and are not limited with the embodiment shown in this case.

In some embodiments, an induction apparatuss 2b1 is set in base 2b, induction apparatuss 2b1 be can for electromagnetic inductor or It is optical sensor, is not limited, senses whether upper lid 2a is close to and is covered on base 2b, for example, when Induction apparatuss 2b1 is electronic inductor, for example：Hall sensor, then also with corresponding magneticss 2a1 on upper lid 2a, Consequently, it is possible to as shown in figure 3, the induction apparatuss 2b1 on base 2b can then sense on cover 2a on magneticss 2a1 distance, When upper lid 2a is as shown in (a) state, when not being covered on base 2b, then as the magneticss 2a1 of upper lid 2a is apart from base 2b On induction apparatuss 2b1 farther out, be that magneticss 2a1 will not be sensed with induction apparatuss 2b1, and coherent signal will not be produced.However, When upper lid 2a is in rotary course, when upper lid 2a is located at a special angle, now between magneticss 2a1 and induction apparatuss 2b1 Distance reaches a particular value, i.e. induction apparatuss 2b1 and senses the presence of magneticss 2a1, thus produces electromagnetic signal, triggers Micropump The pumping start of 23 (as shown in Figure 4 A), and then make multiple buttons 21,21 ', 21 of liftable keyboard structure 20 " to bottom offset And height is reduced, and lid 2a is covered on base 2b downwards as shown in (b) state, and as liftable keyboard is tied The height reduction of structure 20, and then the integral thickness of portable computer 2 can be reduced so that portable computer 2 more may achieve it is light, thin, Portable purpose.

Please refer to Fig. 4 A, which is the section knot of the liftable keyboard structure and its Micropump for this case preferred embodiment Structure schematic diagram.As illustrated, the liftable keyboard structure 20 of the present embodiment includes an at least button 21, film switch circuit layer The structure such as 22 and Micropump 23, and this at least the structure such as a button 21, film switch circuit layer 22 and Micropump 23 correspond to set It is placed within the base 2b of portable computer 2.And, in the present embodiment, for convenience of description, be adopt an one key 21 with As the use for illustrating, so in other embodiment, the quantity and configuration mode of button 21 be can according to actually applying situation and Appoint and apply change, be not limited thereto.In the present embodiment, button 21 has button cap 210, scissor element 211 and elasticity unit The structures such as part 212, wherein button cap 210 are the lid-likes for a ㄇ fonts, and which is can be made up of a plastic material, but It is not limited, scissor element 211 is to be connected with button cap 210 and flexible member 212 connects, to support and drive button Cap 210.Flexible member 212 is correspondingly arranged under button cap 210, in some embodiments, in original state, flexible member 212 are not contacted with button cap 210, but in other embodiments, flexible member 212 also can be with button cap 210 in original state Inconsistent, its set-up mode can be adjusted according to actually situation is applied, and be not limited thereto.And, flexible member 212 Kenel is that for a hollow cap-like structure, which is can be constituted by having resilient material, for example：Rubber, but be not limited, And there is in which cavity 212a, the bottom of cavity 212a has opening 212b, when the gas inside the cavity 212a is pulled out, then Flexible member 212 can produce compressive deformation, and then can pass through the drive button cap 210 of scissor element 211 to bottom offset start, enter And reduce the height of button 21.

Please refer to Fig. 3, Fig. 4 A and Fig. 4 B again simultaneously, as shown in Figure 4 A, be sequentially to be correspondingly arranged thin film to open below button 21 Circuit layer 22 and Micropump 23 are closed, wherein film switch circuit layer 22 has at least an air inlet 221 and at least an air vent 222, in some embodiments, it can be the hatch frame of ring-type that an at least air inlet 221 is, but be not limited, and the air inlet Mouth 221 corresponds to the opening 212b of the cavity 212a of the flexible member 212 of button 21 and arranges, so that air inlet 221 can be saturating Cross opening 212b and be connected with cavity 212a.In the present embodiment, Micropump 23 be sequentially by exit plate 230, valve sheet 231, Gas collection plate 232, insulation board 237a, conductive plate 236, another insulation board 237b, hydraulic actuator 233, resonance plate 234 and inlet plate 235 grade build stacks are formed.Wherein, piezo-activator 233 corresponds to resonance plate 234 and arranges, and the piezo-activator 233 It is to be assembled by suspension board 233a and piezoelectric ceramic plate 233b.In some embodiments, exit plate 230 has entrance 230a, outlet 230b, entrance temporary storage cavity 230c, outlet temporary storage cavity 230d and communication channel 230e, the side of entrance 230a with it is thin The air inlet 221 of membrane switch circuit layer 22 is connected, and opposite side is then communicated in entrance temporary storage cavity 230c, and exports the side of 230b It is connected with the air vent 222 of film switch circuit layer 22, opposite side is then communicated in outlet temporary storage cavity 230d, wherein, entrance is temporary Chamber 230c and outlet temporary storage cavity 230d are deposited to temporarily storage gas, and communication channel 230e is to be communicated in entrance temporary storage cavity 230c And between outlet temporary storage cavity 230d, circulate to supplied gas.And, in the present embodiment, the end for exporting 230b can be further Convex portion structure 230f set up a protrusion and formed, for example, can be but not be limited to column structure, but be not limited.And, valve Door piece 231 has more a valve opening 231a, and wherein valve opening 231a is corresponding with entrance 230a and entrance temporary storage cavity 230c.Gas collection plate 232 have the first through hole 232b and the second through hole 232c, wherein the one of the first through hole 232b and the second through hole 232c End is connected with gas collection chamber 232a, and the other end is then connected with entrance temporary storage cavity 230c and outlet temporary storage cavity 230d respectively. And, convex portion structure 232d is further set up being adjacent at the first through hole 232b, for example, can be but not be limited to a circle Rod structure, and which is correspondingly arranged with the valve opening 231a of valve sheet 231.Therefore when valve sheet 231 and exit plate 230 and gas collection During the positioning assembling of plate 232, it is that its valve opening 231a is correspondingly arranged corresponding to convex portion structure 232d of gas collection plate 232, by this The design of single valve opening 231a, so that gas can reach the purpose of one-way flow in response to its pressure reduction.

In some embodiments, Micropump 23 has more insulating trip 237a, conducting strip 236 and another insulating trip 237b, and its It is that sequentially stacking is arranged on piezo-activator 233, and its form approximately corresponds to the shape of the housing of piezo-activator 233 State.In some embodiments, insulating trip 237a, 237b are made up of the material that can be insulated, for example：Plastic cement, but not as Limit, is used with carrying out insulation；In other embodiments, conducting strip 236 is made up of conductive material, for example：Metal, But it is not limited, to carry out conducting being used.

In the present embodiment, piezo-activator 233 is disposed under gas collection plate 232, and its be by suspension board 233a and Piezoelectric ceramic plate 233b assembles, to the start for driving Micropump 23.And in gas collection plate 232 and the pressure of piezo-activator 233 It is to define gas collection chamber 232a between electroceramics plate 233b, gas collection chamber 232a is connected via the first through hole 232b In entrance temporary storage cavity 230c, and while it is connected with the second through hole 232c.

And, resonance plate 234 and inlet plate 235 be more sequentially set under piezo-activator 233, the resonance plate 234 be by One flexible materials are constituted, but are not limited, and on resonance plate 12 have hollow bore 234a, in some embodiments In, resonance plate is can be made up of a copper material, but is not limited.Inlet plate 235 is that have an at least air inlet 235a, its It is main the effect of atmospheric pressure to be complied with from outside device to supplied gas and is flowed in Micropump 23 from an at least air inlet 235a.And As illustrated, inlet plate 235 confluxes round 235b with least one, which is connected with air inlet 235a, and can by gas by During air inlet 235a is guided and is confluxed and is concentrated to central recess 235c, and permeable and central recess 235c is correspondingly arranged Hollow bore 234a and be communicated up.In other embodiments, the material of inlet plate 11 is to be but not be limited to by a rustless steel Material is constituted, but is not limited.

Please refer to Fig. 4 A and Fig. 4 B, as shown in Figure 4 A, when 23 non-start of Micropump, gas can be by inlet plate 235 Air inlet 235a is entered in Micropump 23, and is sent at central recess 235c via the round 235b that confluxes, and passes through resonance plate 12 Hollow bore 234a and enter gas collection chamber 232a, and run through via the first through hole 232b and second of gas collection plate 232 again Hole 232c is entered in entrance temporary storage cavity 230c and outlet temporary storage cavity 230d, now, as gas is constantly from air inlet 235a Into, be to cause valve sheet 231 to push up so that pressure reduction can be produced, be with the valve opening 231a on Open valve piece 231, and can Gas is made to flow in entrance temporary storage cavity 230c from valve opening 231a, then by the air inlet of entrance 230a Jing film switch circuit layers 22 221 are sent within the cavity 212a of flexible member 212, therefore flexible member 212 can be made to maintain the kenel of script, and make scissor Element 211 supports button cap 210, to maintain the height of button 21, uses for user pressing.Now, as valve sheet 231 is Deformation upwards, be then can be resisted against in convex portion structure 230f of exit plate 230 in the opposite side of valve sheet 231, and then close Gas in outlet 230b, i.e. Micropump 23 cannot be delivered to the air vent 222 of film switch circuit layer 22 by outlet 230b, therefore Discharge without gas.

However, when Micropump 23 receives the electromagnetic signal of induction apparatuss 2b1 transmission, then through the piezoelectricity of piezo-activator 233 Activate, cause the piezoelectric ceramic plate 233b of the piezo-activator 233 drive suspension board 233a and start downwards, cause gas collection The volume of chamber 232a becomes big, gas flow pattern now be as shown in Figure 4 B, due to suspension board 233a downwards and close to Resonance plate 234, is, so that resonance plate 234 can be caused also to vibrate downwards, and to make the gas can confluxing from central recess 235c to both sides Round 235b is pushed, and is discharged by the air inlet 235a of inlet plate 235.And, as the volume of gas collection chamber 232a becomes big, it is So that pressure reduction can be produced, and gas is caused to flow into air collecting chamber by the first through hole 232a and the second through hole 232b of gas collection plate 232 In the 232a of room, and make valve sheet 231 with downward start, therefore valve sheet 231 can be resisted against downwards convex portion structure 232d, and Close valve opening 231c, i.e., the gas in entrance temporary storage cavity 230c will not be flowed downwardly in counter current flow；Meanwhile, the valve sheet 231 of opposite side is also During the downward start of meeting, and then the outlet 230b of exit plate 230 can be made to be connected with outlet temporary storage cavity 230d, and can be simultaneously via thin The air vent 222 of membrane switch circuit layer 22 and be connected with the external world, therefore gas can by exit plate 230 entrance 230a flow into entrance In temporary storage cavity 230c, then outlet temporary storage cavity 230d is flow to via communication channel 230e, finally by the outlet 230b Jing of exit plate 230 Air vent 222 and discharge outside liftable keyboard structure 20, whereby, flexible member 212 can be made through the start of Micropump 23 Cavity 212a in gas be extracted, and produce compressive deformation, and make the distance of the button cap 210 of button 21 to bottom offset h, To reduce the height of button 21, and reduce the integral thickness of liftable keyboard structure 20 so that portable computer 2 more may achieve Gently, thin, portable purpose.

In sum, the liftable keyboard structure provided by this case is applied in portable computer, and its bottom of arranging in pairs or groups The induction apparatuss of seat and start, the liftable keyboard structure includes button, film switch circuit layer and Micropump for sequentially arranging etc. Structure, when induction apparatuss are sensed upper lid is close when, then trigger be transferred to Micropump, through the start of Micropump, with to button Interior flexible member is evacuated, and flexible member is produced deformation and is compressed downwards, to drive the button cap of button to bottom offset, And then the height of reduction button, to reduce the integral thickness of liftable keyboard structure, so that portable computer is in upper lid is entire During closing, integral thickness can be more reduced, and reaches the purpose of lightening design；Therefore, the liftable keyboard structure of this case can be certainly Liftable keyboard structure falling head is made when covering close in dynamic detection, overall volume is reduced and is thinned, to reach To light comfortable portable purpose, great industrial utilization, whence are filed an application in accordance with the law.

Even if this utility model can be applied craftsman's think of by this those skilled in the art times are familiar with by above-described embodiment narration in detail and be Modify as all, so neither take off as attached claim is intended to protector.

Claims

1. a kind of liftable keyboard structure, it is adaptable to which a portable computer, the portable computer include a Shang Gai and a base, The base has an induction apparatuss, it is characterised in that the liftable keyboard structure includes：

An at least button, each button have a button cap and a flexible member, and the flexible member corresponds to the button cap And arrange, and there is a cavity；

One film switch circuit layer, with an at least air inlet and an at least air vent, an at least air inlet corresponds to the bullet Property element the cavity one opening and arrange；And

One Micropump, is correspondingly arranged under the film switch circuit layer, and including：One entrance and an outlet, the entrance are communicated in An at least air inlet for the film switch circuit layer, the outlet is in an at least aerofluxuss for the film switch circuit layer Mouthful；

Wherein, when the induction apparatuss of the base of the portable computer are sensed covers close on this, the Micropump is made to be evacuated start, So that gas in the cavity of the flexible member by the cavity should Open Side Down sequentially flows through the film switch circuit layer The entrance of at least an air inlet and the Micropump, in the Micropump, then flow to the film switch circuit layer by the outlet An at least air vent and discharge, make the flexible member to produce compressed shape because of gas extraction by the cavity of the flexible member Become, and then the button cap is driven to bottom offset, to reduce the height of an at least button.

2. liftable keyboard structure as claimed in claim 1, it is characterised in that each button further includes scissor yuan Part, and the scissor element is connected to the button cap and the flexible member, to support and drive the button cap displacement.

3. liftable keyboard structure as claimed in claim 1, it is characterised in that the Micropump is further included：

One exit plate, with the entrance, an entrance temporary storage cavity, the outlet, an an outlet temporary storage cavity and communication channel, the one of the entrance Side is connected with the air inlet of the film switch circuit layer, and opposite side is then communicated in the entrance temporary storage cavity, the side of the outlet It is connected with the air vent of the film switch circuit layer, opposite side is then communicated in the outlet temporary storage cavity, the communication channel is communicated in Between the entrance temporary storage cavity and the outlet temporary storage cavity；

One gas collection plate, is arranged under the exit plate；

One valve sheet, is arranged between the exit plate and the gas collection plate, and has a valve opening；

One piezo-activator, which is arranged under the gas collection plate, and has a suspension board and a piezoelectric ceramic plate, the piezoelectric ceramic plate The definition between the gas collection plate forms a gas collection chamber；

One resonance plate, with a hollow bore；And

One inlet plate, confluxes round and a central recess with an at least air inlet, at least one, and an at least air inlet is for importing Gas, the corresponding air inlet of the round that confluxes, and guide the gas of the air inlet to converge into the central recess；

Wherein, when the induction apparatuss of the base of the portable computer are sensed covers close on this, then cause being somebody's turn to do for the Micropump Piezo-activator start, makes the suspension board be driven and flexural deformation by a voltage, and makes the stereomutation of the gas collection chamber, and then Produce pressure differential promote gas flowing so that gas from the entrance flow through the entrance temporary storage cavity, the communication channel, the outlet keep in Chamber, and the Micropump is flowed out from the outlet, and discharged by an at least air vent for the film switch circuit layer.

4. liftable keyboard structure as claimed in claim 3, it is characterised in that the Micropump further include an at least insulating trip and One conducting strip, and an at least insulating trip and the conducting strip be disposed on the piezo-activator.

5. liftable keyboard structure as claimed in claim 3, it is characterised in that the gas collection plate of the Micropump further includes one the One end of pass through aperture and one second through hole, first through hole and the second through hole is connected with the gas collection chamber, separately One end is then connected with the entrance temporary storage cavity and the outlet temporary storage cavity respectively.

6. liftable keyboard structure as claimed in claim 5, it is characterised in that the Micropump further includes multiple convex portion structures, In the one end of the outlet, another convex portion structure setting is in the one of first through hole for the therein one convex portion structure setting Side, it is corresponding with the valve sheet when being used to start to support.

7. liftable keyboard structure as claimed in claim 1, it is characterised in that the induction apparatuss of the base are an electromagnetism sense Answer device, and on this lid with more a magneticss, the electromagnetic inductor is to sense the distance of the magneticss, and it is electric to produce one Magnetic signal.

8. a kind of liftable keyboard structure, it is adaptable to which a portable computer, the portable computer include a Shang Gai and a base, The base has an induction apparatuss, it is characterised in that the liftable keyboard structure has：

One Micropump, is correspondingly arranged under the film switch circuit layer, and including：One entrance, an outlet and a piezo-activator, The entrance is communicated in an at least air inlet for the film switch circuit layer, the outlet being somebody's turn to do in the film switch circuit layer An at least air vent；

Wherein, when the induction apparatuss of the base of the portable computer are sensed covers close on this, make the piezoelectricity of the Micropump Actuator start, and then change the gas collection chamber volume in the Micropump, produce pressure differential to promote gas to flow, passing through should The pumping start of Micropump so that the gas in the cavity of the flexible member by the cavity should Open Side Down the Jing thin film switch An at least air inlet for circuit layer flow to the entrance of the Micropump, then flow to the outlet, and the Jing film switch circuit layers An at least air vent is discharged, and the cavity of the flexible member produces compressive deformation because gas is extracted out whereby, and then drive should Button cap to bottom offset, to reduce the height of an at least button.

9. liftable keyboard structure as claimed in claim 8, it is characterised in that each button further includes scissor yuan Part, and the scissor element is connected to the button cap and the flexible member, to support and drive the button cap displacement.

10. liftable keyboard structure as claimed in claim 8, it is characterised in that the Micropump is further included：

One gas collection plate, is arranged under the exit plate；

The piezo-activator is arranged under the gas collection plate, and has a suspension board and a piezoelectric ceramic plate, the piezoelectric ceramic plate with Definition between the gas collection plate forms a gas collection chamber；

One resonance plate, with a hollow bore；And

11. liftable keyboard structures as claimed in claim 10, it is characterised in that the Micropump further includes an at least insulating trip And a conducting strip, and an at least insulating trip and the conducting strip be arranged on the piezo-activator.

12. liftable keyboard structures as claimed in claim 10, it is characterised in that the gas collection plate of the Micropump further includes one One end of first through hole and one second through hole, first through hole and the second through hole is connected with the gas collection chamber, separately One end is then connected with the entrance temporary storage cavity and the outlet temporary storage cavity respectively.

13. liftable keyboard structures as claimed in claim 12, it is characterised in that the Micropump further includes multiple convex portion knots Structure, in the one end of the outlet, another convex portion structure setting is in first through hole for the therein one convex portion structure setting Side, it is corresponding with the valve sheet when being used to start to support.

14. liftable keyboard structures as claimed in claim 8, it is characterised in that the induction apparatuss of the base are an electromagnetism Induction apparatuss, and on this lid with more a magneticss, the electromagnetic inductor is to sense the distance of the magneticss, and produces one Electromagnetic signal.