CN1328648C - Sensing type input keyboard based on force mode - Google Patents
Sensing type input keyboard based on force mode Download PDFInfo
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- CN1328648C CN1328648C CNB2005101150420A CN200510115042A CN1328648C CN 1328648 C CN1328648 C CN 1328648C CN B2005101150420 A CNB2005101150420 A CN B2005101150420A CN 200510115042 A CN200510115042 A CN 200510115042A CN 1328648 C CN1328648 C CN 1328648C
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Abstract
The present invention relates to a sensing type input keyboard based on a force mode, which belongs to the technical field of human-computer interacting devices. The input keyboard comprises keys, a film plate of a keyboard scanning circuit, a circuit board, a bottom board, an upper electrode film plate, pressure sensitive elements and a first flexible base board, wherein the film plate of a keyboard scanning circuit and the circuit board are mutually conducted, the first flexible base board is provided with a groove and a lead-out electrode which is mutually conducted with the circuit board, the pressure sensitive elements are inlaid in the groove, the keys are arranged on rubber caps which are linked with the pressure sensitive elements by the film plate of a keyboard scanning circuit and an upper electrode film plate, the upper electrode film plate is provided with the printed circuit and the lead-out electrode, the pressure sensitive elements are mutually conducted by the printed circuit, and the lead-out electrode and the circuit board are mutually conducted. The input keyboard of the present invention has high force response speed, is suitable for sensing the force action of rapid variation, has the advantages of simple package form, and low processing difficulty, and is easy for the product and volume production of the devices.
Description
Technical field
The present invention relates to a kind of sensing type input keyboard, belong to human-computer interaction device's technical field based on force mode.
Background technology
Keyboard is the most basic input equipment of computing machine, is a kind of binary information input equipment of basis.Its basic structure is a kind of switch arrays, scans by key and obtains switch motion and position signalling thereof.It is widely used in the every field of man-machine interaction most.Except external form and structural slight variations, keyboard input devices does not have big development and variation all the time yet in decades.Especially this input equipment can not sense operation the situation that applies of power of action, can't differentiate the operator and move mood behind.This is in computing machine and network technology develop rapidly, and information interaction speed and quantity is today of lifting sharply, has obviously become a kind of input mode of backwardness.
Summary of the invention
The objective of the invention is to propose a kind of sensing type input keyboard based on force mode, the structure of existing computing machine with keyboard made improvements, when taking into account existing keyboard structure and operator scheme, interpolation power perceptual structure module, when gathering switching signal to be implemented in, obtain the information of operating physical force according to the pattern that applies of power, make and calculate function and fed back by different input patterns.
The power sensing type input keyboard that the present invention proposes has four kinds of different structures, wherein:
First kind of structure of input keyboard comprises button, keyboard scanning circuit diaphragm, circuit board and base plate, also comprises top electrode diaphragm, pressure-active element and first flexible base, board; Described keyboard scanning circuit diaphragm and circuit board mutual conduction; Described keyboard scanning circuit diaphragm, top electrode diaphragm, first flexible base, board and base plate from top to bottom are stacked successively; Described first flexible base, board is provided with groove and extraction electrode, extraction electrode and described circuit board mutual conduction, and described pressure-active element is embedded in the groove, passes through the slot electrode mutual conduction between the pressure-active element; Described button is installed on the Capsule, and Capsule is by keyboard scanning circuit diaphragm and top electrode diaphragm and pressure-active element interlock; Described top electrode diaphragm is provided with P.e.c. and extraction electrode, and pressure-active element is by P.e.c. mutual conduction, extraction electrode and circuit board mutual conduction.
Above-mentioned first kind of input keyboard, can also comprise diaphragm, diaphragm places between the top electrode diaphragm and first flexible base, board, and diaphragm is provided with and the corresponding circular hole of pressure-active element, and described top electrode diaphragm is by circular hole on the diaphragm and pressure-active element mutual conduction.
Second kind of structure of input keyboard comprises button, keyboard scanning circuit diaphragm, circuit board and base plate, also comprises top electrode diaphragm, spacer, bottom electrode diaphragm, pressure-active element and second flexible base, board; Described keyboard scanning circuit diaphragm and circuit board mutual conduction; Described keyboard scanning circuit diaphragm, top electrode diaphragm, spacer, pressure-active element, bottom electrode diaphragm, second flexible base, board and base plate from top to bottom are stacked successively; Described spacer is provided with and the corresponding circular hole of pressure-active element, and pressure-active element is embedded in the circular hole; Described upper and lower electrode diaphragm is provided with P.e.c. and extraction electrode, and extraction electrode and described circuit board mutual conduction are passed through the P.e.c. mutual conduction between the pressure-active element; Described button is installed on the Capsule, and Capsule is by keyboard scanning circuit diaphragm, top electrode diaphragm and pressure-active element interlock;
Above-mentioned second kind of input keyboard can also comprise diaphragm, and diaphragm places between top electrode diaphragm and the spacer, and diaphragm is provided with and the corresponding circular hole of pressure-active element, and described top electrode diaphragm is by circular hole on the diaphragm and pressure-active element mutual conduction.
The third structure of input keyboard, comprise button, keyboard scanning circuit diaphragm, circuit board and base plate, it is characterized in that also comprising top electrode diaphragm, last spacer, upper strata pressure-active element, middle electrode diaphragm, following spacer, laminated photosensitive elements, bottom electrode diaphragm and second flexible base, board; Described keyboard scanning circuit diaphragm and circuit board mutual conduction; Described keyboard scanning circuit diaphragm, top electrode diaphragm, last spacer, upper strata pressure-active element, middle electrode diaphragm, following spacer, laminated photosensitive elements, bottom electrode diaphragm, second flexible base, board and base plate from top to bottom are stacked successively; Be respectively equipped with on the described upper and lower spacer and the corresponding circular hole of upper and lower lamination photosensitive elements, upper and lower lamination photosensitive elements is embedded in respectively in the circular hole of upper and lower spacer; The upper and lower surface of electrode diaphragm is respectively equipped with P.e.c. and extraction electrode, the upper surface of middle electrode diaphragm and upper strata pressure-active element mutual conduction, lower surface and the conducting of laminated photosensitive elements, extraction electrode and described circuit board mutual conduction in described; Described upper and lower electrode diaphragm is provided with P.e.c. and extraction electrode, extraction electrode and described circuit board mutual conduction, by the P.e.c. mutual conduction on the top electrode diaphragm, pass through the P.e.c. mutual conduction on the bottom electrode diaphragm between the laminated photosensitive elements between the pressure-active element of upper strata; Described button is installed on the Capsule, and Capsule passes through keyboard scanning circuit diaphragm and top electrode diaphragm and the interlock of upper strata pressure-active element, and and then by middle electrode diaphragm and the interlock of laminated photosensitive elements.
Upper strata pressure-active element in above-mentioned the third input keyboard and laminated photosensitive elements are respectively piezoelectric sensing element and piezoresistance sensitivity element, also can be respectively piezoresistance sensitivity element and piezoelectric sensing element.
Middle electrode diaphragm in above-mentioned the third input keyboard can be a conductive film, the upper surface of middle electrode diaphragm and upper strata pressure-active element mutual conduction, lower surface and the conducting of laminated photosensitive elements.
Above-mentioned the third input keyboard, can also comprise diaphragm, diaphragm places between top electrode diaphragm and the last spacer, and diaphragm is provided with and the corresponding circular hole of upper strata pressure-active element, and described top electrode diaphragm is by circular hole on the diaphragm and upper strata pressure-active element mutual conduction.
The 4th kind of structure of input keyboard comprises button, keyboard scanning circuit diaphragm, circuit board and base plate, also comprises top electrode diaphragm, spacer, bottom electrode diaphragm, pressure-active element and second flexible base, board; Described keyboard scanning circuit diaphragm and circuit board mutual conduction; Described top electrode diaphragm, spacer, pressure-active element, bottom electrode diaphragm, keyboard scanning circuit diaphragm, second flexible base, board and base plate from top to bottom are stacked successively; Described spacer is provided with and the corresponding circular hole of pressure-active element, and pressure-active element is embedded in the circular hole; Described upper and lower electrode diaphragm is provided with P.e.c. and extraction electrode, and extraction electrode and described circuit board mutual conduction are passed through the P.e.c. mutual conduction between the pressure-active element; Described button is installed on the Capsule, and Capsule is by top electrode diaphragm and pressure-active element interlock.
Above-mentioned first and second, the pressure-active element in four kinds of input keyboards is any in piezoelectric ceramic piece, 2 yuan are or 3 one-component system piezoelectric ceramics sheets, 1-3 type or 0-3 type piezo-electricity composite material are made piezoelectric device, the polymer membrane with piezoelectric effect.The lower surface of piezoelectric patches can the metal clad sheet.
The power sensing type input keyboard that the present invention proposes has solved conventional keyboard and can't gather the keystroke dynamics, can't be according to the different problems that different outputs are provided of doing of key force pattern.For this Basis of Computer Engineering operating equipment of use keyboard of novelty provides a new way.At this novel input equipment, cooperate appropriate software to explain and Application Design, the user can form abundant and personalized operation control effect by the force mode matched combined of multiple operation.Input keyboard of the present invention is an original shape with existing keyboard structure and using method, and packing forms is simple, and difficulty of processing is low, is easy to the commercialization and the mass production of equipment.Its using method and common keyboard basically identical do not need special study and training, are easy to be accepted by the user, are convenient to conducting promotion to of product yet, and good market outlook are arranged.In the input keyboard of the present invention, adopting the piezoelectric type pressure-active element is main pressure sensor component, and it is with low cost, force-responsive speed height is suitable for responding to the effect of fast-changing power, corresponding keyboard impact characteristic fast, consider from the angle of cost performance, obviously be better than other design proposal.
Description of drawings
Fig. 1 is first kind of structural representation based on the sensing type input keyboard of force mode that the present invention proposes.
Fig. 2 is an embodiment of structure shown in Figure 1.
Second kind of structural representation of Fig. 3 input keyboard of the present invention.
Fig. 4 is an embodiment of structure shown in Figure 3.
Fig. 5 is the third structural representation of input keyboard of the present invention.
Fig. 6 is an embodiment of structure shown in Figure 5.
Fig. 7 is the 4th a kind of structural representation of input keyboard of the present invention.
Fig. 8 is the structural representation of first kind of flexible base, board in the input keyboard.
Among Fig. 1～Fig. 8, the 1st, the keyboard lower shoe, 2 is first flexible base, boards, the 3rd, pressure-active element, wherein 3a is the upper strata pressure-active element, and 3b is the laminated photosensitive elements, the 4th, and the top electrode diaphragm, the 5th, the keyboard scanning circuit diaphragm, the 6th, button Capsule or copper bowl, the 7th, button keycap, the 8th, circuit board, the 9th, diaphragm, 10 is second flexible base, boards, the 11st, and bottom electrode diaphragm, the 12nd, spacer, the 13rd, following spacer, the 14th, last spacer, the 15th, middle electrode diaphragm, 16 is first flexible base, board grooves, 17 is first flexible base, board slot electrodes, and 18 is first flexible base, board extraction electrodes.
Embodiment
The power sensing type input keyboard that the present invention proposes, its first kind of version comprises button 7, keyboard scanning circuit diaphragm 5, circuit board 8 and base plate 1 (being keyboard case), top electrode diaphragm 4, pressure-active element and first flexible base, board 2 as shown in Figure 1.Keyboard scanning circuit diaphragm 5 and circuit board 8 mutual conduction; Keyboard scanning circuit diaphragm 5, top electrode diaphragm 4, first flexible base, board 2 and base plate 1 from top to bottom are stacked successively; First flexible base, board 2 is provided with groove 16 and extraction electrode 18, as shown in Figure 8, and extraction electrode 18 and circuit board 8 mutual conduction.Pressure-active element 3 is embedded in the groove 16, passes through slot electrode 17 mutual conduction between the pressure-active element 3.Button keycap 7 is installed on the Capsule 6, and Capsule 6 is by keyboard scanning circuit diaphragm 5 and top electrode diaphragm 4 and pressure-active element 3 interlocks.Top electrode diaphragm 4 is provided with P.e.c. and extraction electrode, and pressure-active element 3 is by P.e.c. mutual conduction, extraction electrode and circuit board 8 mutual conduction.
An embodiment of above-mentioned first kind of structure as shown in Figure 2, also comprise diaphragm 9, this diaphragm 9 places between the top electrode diaphragm 4 and first flexible base, board 2, which is provided with and pressure-active element 3 corresponding circular holes, described top electrode diaphragm 4 is by circular hole on the diaphragm and pressure-active element 3 mutual conduction.
When operational motion took place, finger stroke power was delivered on the keycap 7, forces Capsule 6 deformation, and compressive scans circuit diaphragm 5 is realized the key scanning of common keyboard.Pressure continues to be passed to the relevant position of top electrode diaphragm 4 downwards simultaneously, thereby transfer the pressure on the pressure-active element 3, and by pressure-active element 3 generation pressure signals, to circuit board 8, produce corresponding output signal via the electrode on first flexible base, board 2 and the electrodes transfer on the top electrode diaphragm 4 by circuit board 8.
Under the situation of embodiment shown in Figure 2, diaphragm 9 makes pressure-sensitive loop be in off-state, pressure acts on the top electrode diaphragm 4 through keycap 7, Capsule 6, sweep circuit diaphragm 5 when having only keystroke, makes 4 deformation of top electrode diaphragm see through diaphragm 9 and pressure-active element 3 mutual conduction.
The power sensing type input keyboard that the present invention proposes, its second kind of version comprises button 7, keyboard scanning circuit diaphragm 5, circuit board 8 and base plate 1 (shell), top electrode diaphragm 4, spacer 12, bottom electrode diaphragm 11, pressure-active element 3 and second flexible base, board 10 as shown in Figure 3.Keyboard scanning circuit diaphragm 5 and circuit board 8 mutual conduction.Keyboard scanning circuit diaphragm 5, top electrode diaphragm 4, spacer 12, pressure-active element 3, bottom electrode diaphragm 11, second flexible base, board 10 and base plate 1 from top to bottom are stacked successively.Spacer 12 is provided with and pressure-active element 3 corresponding circular holes, and pressure-active element 3 is embedded in the circular hole.Top electrode diaphragm 4, bottom electrode diaphragm 11 are provided with P.e.c. and extraction electrode, and extraction electrode and described circuit board 8 mutual conduction are passed through the P.e.c. mutual conduction between the pressure-active element 3.Button 7 is installed on the Capsule 6, and Capsule 6 is by keyboard scanning circuit diaphragm 5, top electrode diaphragm 4 and pressure-active element 3 interlocks.
An embodiment of second kind of structure also comprises diaphragm 9 as shown in Figure 4, and diaphragm 9 places between top electrode diaphragm 4 and the spacer 12, and diaphragm 9 is provided with and pressure-active element 3 corresponding circular holes.Top electrode diaphragm 4 is by circular hole and pressure-active element 3 mutual conduction on the diaphragm 9.
When operational motion took place, finger stroke power was delivered on the keycap 7, forces Capsule 6 deformation, and compressive scans circuit diaphragm 5 is realized the key scanning of common keyboard.Pressure continues to be passed to the relevant position of top electrode diaphragm 4 downwards simultaneously, thereby transfer the pressure on the pressure-active element 3, and by pressure-active element 3 generation pressure signals, to circuit board 8, produce mutually deserved output signal via the electrodes transfer on top electrode diaphragm 4 and the bottom electrode diaphragm sheet 11 by circuit board 8.
Under the situation of embodiment shown in Figure 4, diaphragm 9 makes pressure-sensitive loop be in off-state, pressure acts on the top electrode diaphragm 4 through keycap 7, Capsule 6, sweep circuit diaphragm 5 when having only keystroke, makes 4 deformation of top electrode diaphragm see through diaphragm 9 and pressure-active element 3 mutual conduction.
The power sensing type input keyboard that the present invention proposes, its the third version comprises button 7, keyboard scanning circuit diaphragm 5, circuit board 8 and base plate 1 (shell), top electrode diaphragm 4, last spacer 14, upper strata pressure-active element 3a, middle electrode diaphragm 15, following spacer 13, laminated photosensitive elements 3b, bottom electrode diaphragm 11 and second flexible base, board 10 as shown in Figure 5.Keyboard scanning circuit diaphragm 5 and circuit board 8 mutual conduction.Keyboard scanning circuit diaphragm 5, top electrode diaphragm 4, last spacer 14, upper strata pressure-active element 3a, middle electrode diaphragm 16, following spacer 13, laminated photosensitive elements 3b, bottom electrode diaphragm 11, second flexible base, board 10 and base plate 1 from top to bottom are stacked successively.Be respectively equipped with on the upper and lower spacer 14,13 and upper and lower lamination photosensitive elements 3a, the corresponding circular hole of 3b, upper and lower lamination photosensitive elements 3a, 3b are embedded in respectively in the circular hole of upper and lower spacer 14,13.The upper and lower surface of middle electrode diaphragm 15 is respectively equipped with P.e.c., the upper surface of middle electrode diaphragm 15 and upper strata pressure-active element 3a mutual conduction, lower surface and laminated photosensitive elements 3b conducting, extraction electrode and described circuit board 8 mutual conduction.11 are provided with P.e.c. and extraction electrode on top electrode diaphragm 4, the bottom electrode diaphragm, extraction electrode and described circuit board 8 mutual conduction, by the P.e.c. mutual conduction on the top electrode diaphragm, pass through the P.e.c. mutual conduction on the bottom electrode diaphragm between the laminated photosensitive elements 3b between the pressure-active element 3a of upper strata.Button is installed on the Capsule, and Capsule passes through keyboard scanning circuit diaphragm and top electrode diaphragm and the interlock of upper strata pressure-active element, and and then by middle electrode diaphragm and the interlock of laminated photosensitive elements.
In the third version.Upper strata pressure-active element 3a and laminated photosensitive elements 3b are respectively piezoelectric sensing element and piezoresistance sensitivity element, or are respectively piezoresistance sensitivity element and piezoelectric sensing element.
As an embodiment of the third structure, wherein middle electrode diaphragm 15 can be a conductive film, the upper surface of middle electrode diaphragm and upper strata pressure-active element mutual conduction, lower surface and the conducting of laminated photosensitive elements.
Another embodiment of the third structure also comprises diaphragm 9 as shown in Figure 6.Diaphragm 9 places between top electrode diaphragm 4 and the last spacer 14, and diaphragm 9 is provided with the corresponding circular hole with upper strata pressure-active element 3a, and described top electrode diaphragm 4 is by circular hole and upper strata pressure-active element 3a mutual conduction on the diaphragm 9.
Corresponding to the third version, when operational motion took place, finger stroke power was delivered on the keycap 7, forces Capsule 6 deformation, and compressive scans circuit diaphragm 5 is realized the key scanning of common keyboard.Simultaneously pressure continues to be passed to the relevant position of top electrode diaphragm 4 downwards, thereby transfers the pressure on the pressure-active element 3a of upper strata, and produces pressure signal by pressure-active element 3a, via the electrodes transfer on top electrode diaphragm 4 and the middle electrode diaphragm 15 to circuit board 8; Simultaneously, pressure sees through middle electrode diaphragm 15 and is passed to laminated photosensitive elements 3b downwards, and the pressure signal that pressure-active element 3b produces to circuit board 8, and produces corresponding output signal by circuit board 8 via the electrodes transfer on middle electrode diaphragm 15 and the bottom electrode diaphragm 11.Because upper and lower lamination photosensitive elements 3a, 3b adopt piezoelectricity and pressure drag pressure-active element respectively, this mode can well overcome piezoelectric element and be difficult to the power that perception slowly applies, and pressure drag component is difficult to the shortcoming of the fast-changing power of perception.
Under the situation of embodiment shown in Figure 6, diaphragm 9 makes pressure-sensitive loop, upper strata be in off-state, pressure acts on the top electrode diaphragm 4 through keycap 7, Capsule 6, sweep circuit diaphragm 5 when having only keystroke, makes 4 deformation of top electrode diaphragm see through diaphragm 9 and pressure-active element 3 mutual conduction.
The power sensing type input keyboard that the present invention proposes, its the 4th kind of version comprises button 7, keyboard scanning circuit diaphragm 5, circuit board 8 and base plate 1, top electrode diaphragm 4, spacer 12, bottom electrode diaphragm 11, pressure-active element 3 and second flexible base, board 10 as shown in Figure 7.Keyboard scanning circuit diaphragm 5 and circuit board 8 mutual conduction.Top electrode diaphragm 4, spacer 12, pressure-active element 3, bottom electrode diaphragm 11, keyboard scanning circuit diaphragm 5, second flexible base, board 10 and base plate 1 from top to bottom are stacked successively.Spacer 12 is provided with and pressure-active element 3 corresponding circular holes, and pressure-active element 3 is embedded in the circular hole.Upper and lower electrode diaphragm 4,11 is provided with P.e.c. and extraction electrode, and extraction electrode and described circuit board 8 mutual conduction are passed through the P.e.c. mutual conduction between the pressure-active element 3.Button 7 is installed on the Capsule 6, and Capsule 6 is by top electrode diaphragm 4 and pressure-active element 3 interlocks.
When operational motion takes place, finger stroke power is delivered on the keycap 7, force Capsule 6 deformation, the relevant position of extruding top electrode diaphragm 4, thereby transfer the pressure on the pressure-active element 3, and, to circuit board 8, produce corresponding output signal by circuit board 8 via the electrodes transfer on top electrode diaphragm 4 and the bottom electrode diaphragm 11 by pressure-active element 3 generation pressure signals.Pressure continues to transmit downwards simultaneously, compressive scans circuit diaphragm 5, thereby the key scanning of realization common keyboard.
The power sensing type input keyboard that the present invention proposes, its first and second, four kinds of pressure-active elements that version adopted, and the piezoelectricity pressure-active element that the third version adopted is any in piezoelectric ceramic piece, 2 yuan are or 3 one-component system piezoelectric ceramics sheets, 1-3 type or 0-3 type piezo-electricity composite material are made piezoelectric device, the polymer membrane with piezoelectric effect.For promoting the power sense effect of pressure-active element, can also be at the lower surface applying sheet metal of pressure-active element.
Claims (10)
1, a kind of power sensing type input keyboard comprises button, keyboard scanning circuit diaphragm, circuit board and base plate, it is characterized in that also comprising top electrode diaphragm, pressure-active element and first flexible base, board; Described keyboard scanning circuit diaphragm and circuit board mutual conduction; Described keyboard scanning circuit diaphragm, top electrode diaphragm, first flexible base, board and base plate from top to bottom are stacked successively; Described first flexible base, board is provided with groove and extraction electrode, extraction electrode and described circuit board mutual conduction, and described pressure-active element is embedded in the groove, passes through the slot electrode mutual conduction between the pressure-active element; Described button is installed on the Capsule, and Capsule is by keyboard scanning circuit diaphragm and top electrode diaphragm and pressure-active element interlock; Described top electrode diaphragm is provided with P.e.c. and extraction electrode, and pressure-active element is by P.e.c. mutual conduction, extraction electrode and circuit board mutual conduction.
2, input keyboard as claimed in claim 1, it is characterized in that also comprising diaphragm, described diaphragm places between the top electrode diaphragm and first flexible base, board, diaphragm is provided with and the corresponding circular hole of pressure-active element, and described top electrode diaphragm is by circular hole on the diaphragm and pressure-active element mutual conduction.
3, a kind of power sensing type input keyboard comprises button, keyboard scanning circuit diaphragm, circuit board and base plate, it is characterized in that also comprising top electrode diaphragm, spacer, bottom electrode diaphragm, pressure-active element and second flexible base, board; Described keyboard scanning circuit diaphragm and circuit board mutual conduction; Described keyboard scanning circuit diaphragm, top electrode diaphragm, spacer, pressure-active element, bottom electrode diaphragm, second flexible base, board and base plate from top to bottom are stacked successively; Described spacer is provided with and the corresponding circular hole of pressure-active element, and pressure-active element is embedded in the circular hole; Described upper and lower electrode diaphragm is provided with P.e.c. and extraction electrode, and extraction electrode and described circuit board mutual conduction are passed through the P.e.c. mutual conduction between the pressure-active element; Described button is installed on the Capsule, and Capsule is by keyboard scanning circuit diaphragm, top electrode diaphragm and pressure-active element interlock.
4, input keyboard as claimed in claim 3, it is characterized in that also comprising diaphragm, described diaphragm places between top electrode diaphragm and the spacer, diaphragm is provided with and the corresponding circular hole of pressure-active element, and described top electrode diaphragm is by circular hole on the diaphragm and pressure-active element mutual conduction.
5, a kind of power sensing type input keyboard, comprise button, keyboard scanning circuit diaphragm, circuit board and base plate, it is characterized in that also comprising top electrode diaphragm, last spacer, upper strata pressure-active element, middle electrode diaphragm, following spacer, laminated photosensitive elements, bottom electrode diaphragm and second flexible base, board; Described keyboard scanning circuit diaphragm and circuit board mutual conduction; Described keyboard scanning circuit diaphragm, top electrode diaphragm, last spacer, upper strata pressure-active element, middle electrode diaphragm, following spacer, laminated photosensitive elements, bottom electrode diaphragm, second flexible base, board and base plate from top to bottom are stacked successively; Be respectively equipped with on the described upper and lower spacer and the corresponding circular hole of upper and lower lamination photosensitive elements, upper and lower lamination photosensitive elements is embedded in respectively in the circular hole of upper and lower spacer; The upper and lower surface of electrode diaphragm is respectively equipped with P.e.c. and extraction electrode, the upper surface of middle electrode diaphragm and upper strata pressure-active element mutual conduction, lower surface and the conducting of laminated photosensitive elements, extraction electrode and described circuit board mutual conduction in described; Described upper and lower electrode diaphragm is provided with P.e.c. and extraction electrode, extraction electrode and described circuit board mutual conduction, by the P.e.c. mutual conduction on the top electrode diaphragm, pass through the P.e.c. mutual conduction on the bottom electrode diaphragm between the laminated photosensitive elements between the pressure-active element of upper strata; Described button is installed on the Capsule, and Capsule passes through keyboard scanning circuit diaphragm and top electrode diaphragm and the interlock of upper strata pressure-active element, and and then by middle electrode diaphragm and the interlock of laminated photosensitive elements.
6, input keyboard as claimed in claim 5 is characterized in that wherein said upper strata pressure-active element and laminated photosensitive elements are respectively piezoelectric sensing element and piezoresistance sensitivity element, or is respectively piezoresistance sensitivity element and piezoelectric sensing element.
7, input keyboard as claimed in claim 5, it is characterized in that also comprising diaphragm, described diaphragm places between top electrode diaphragm and the last spacer, diaphragm is provided with and the corresponding circular hole of upper strata pressure-active element, and described top electrode diaphragm is by circular hole on the diaphragm and upper strata pressure-active element mutual conduction.
8, a kind of power sensing type input keyboard comprises button, keyboard scanning circuit diaphragm, circuit board and base plate, it is characterized in that also comprising top electrode diaphragm, spacer, bottom electrode diaphragm, pressure-active element and second flexible base, board; Described keyboard scanning circuit diaphragm and circuit board mutual conduction; Described top electrode diaphragm, spacer, pressure-active element, bottom electrode diaphragm, keyboard scanning circuit diaphragm, second flexible base, board and base plate from top to bottom are stacked successively; Described spacer is provided with and the corresponding circular hole of pressure-active element, and pressure-active element is embedded in the circular hole; Described upper and lower electrode diaphragm is provided with P.e.c. and extraction electrode, and extraction electrode and described circuit board mutual conduction are passed through the P.e.c. mutual conduction between the pressure-active element; Described button is installed on the Capsule, and Capsule is by top electrode diaphragm and pressure-active element interlock.
9,, it is characterized in that wherein said pressure-active element is any in piezoelectric ceramic piece, 2 yuan are or 3 one-component system piezoelectric ceramics sheets, 1-3 type or 0-3 type piezo-electricity composite material are made piezoelectric device, the polymer membrane with piezoelectric effect as claim 1,3,8 described input keyboards.
10, input keyboard as claimed in claim 9 is characterized in that the lower surface metal clad sheet of wherein said piezoelectric ceramic piece, piezoelectric device and polymer membrane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101150420A CN1328648C (en) | 2005-11-25 | 2005-11-25 | Sensing type input keyboard based on force mode |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101150420A CN1328648C (en) | 2005-11-25 | 2005-11-25 | Sensing type input keyboard based on force mode |
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| CN1758190A CN1758190A (en) | 2006-04-12 |
| CN1328648C true CN1328648C (en) | 2007-07-25 |
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| CNB2005101150420A Expired - Fee Related CN1328648C (en) | 2005-11-25 | 2005-11-25 | Sensing type input keyboard based on force mode |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9612664B2 (en) * | 2014-12-01 | 2017-04-04 | Logitech Europe S.A. | Keyboard with touch sensitive element |
| CN105281740A (en) * | 2015-07-24 | 2016-01-27 | 维沃移动通信有限公司 | Key device and terminal |
| CN106886293A (en) * | 2017-03-07 | 2017-06-23 | 信利光电股份有限公司 | A kind of touch control keyboard |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5455556A (en) * | 1991-08-20 | 1995-10-03 | Key Tronic Corporation | Single station cursor device suitable for keyboards |
| CN1275731A (en) * | 1999-05-31 | 2000-12-06 | 明碁电脑股份有限公司 | Computer keyboard with accurately positioned rubber column |
| US6224279B1 (en) * | 1999-05-25 | 2001-05-01 | Microsoft Corporation | Keyboard having integrally molded keyswitch base |
| JP2003050658A (en) * | 2001-08-07 | 2003-02-21 | Seiichi Komatsu | Key inputting device |
| JP2003131795A (en) * | 2001-10-25 | 2003-05-09 | Yasushi Murakawa | Sensor attachable keyboard |
| CN1532678A (en) * | 2003-03-21 | 2004-09-29 | 联想(北京)有限公司 | Keyboard signal sensor |
| CN2710254Y (en) * | 2004-01-15 | 2005-07-13 | 柴世军 | Pressure keyboard module |
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2005
- 2005-11-25 CN CNB2005101150420A patent/CN1328648C/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5455556A (en) * | 1991-08-20 | 1995-10-03 | Key Tronic Corporation | Single station cursor device suitable for keyboards |
| US6224279B1 (en) * | 1999-05-25 | 2001-05-01 | Microsoft Corporation | Keyboard having integrally molded keyswitch base |
| CN1275731A (en) * | 1999-05-31 | 2000-12-06 | 明碁电脑股份有限公司 | Computer keyboard with accurately positioned rubber column |
| JP2003050658A (en) * | 2001-08-07 | 2003-02-21 | Seiichi Komatsu | Key inputting device |
| JP2003131795A (en) * | 2001-10-25 | 2003-05-09 | Yasushi Murakawa | Sensor attachable keyboard |
| CN1532678A (en) * | 2003-03-21 | 2004-09-29 | 联想(北京)有限公司 | Keyboard signal sensor |
| CN2710254Y (en) * | 2004-01-15 | 2005-07-13 | 柴世军 | Pressure keyboard module |
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| CN1758190A (en) | 2006-04-12 |
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