Pressure inductive keyboardTechnical field
The present invention relates to a kind of keyboard more particularly to a kind of pressure inductive keyboards.
Background technique
Existing keyboard transmits signal by capacitance plate touch screens or physical button, it is reported that, the letter of existing keyboard upper keyboardIt number receives through physical button or touches capacitance plate, touch screens, it can be achieved that signal transmits, but the keyboard being suitable for can not be rolled overFolded, bending, and need certain stroke just achievable.The planar support for having physical button and touch screen to need a hardware is completeIt at pressing and touches, is pressed into contact with and needs certain stroke.
Summary of the invention
To overcome disadvantages mentioned above, the purpose of the present invention is to provide one kind not to be with folded bent and pressing and touchThe pressure inductive keyboard for having to a plane to realize.
In order to reach the goals above, the technical solution adopted by the present invention is that: a kind of pressure inductive keyboard, including flexible basePlate, pressure sensor, every being furnished with keyboard circuit on glue, protective layer, the flexible base board, be distributed on the keyboard circuit multipleThe quantity of function key stress point, the pressure sensor is consistent with the quantity of function key stress point, and is arranged in correspondingIt is described to be distributed in the top of pressure sensor every glue and be located between pressure sensor two-by-two, the guarantor on function key stress pointSheath is distributed in glue partiting layer upper surface, by the position of external force protective layer corresponding with pressure sensor, when with the pressureWhen the power that the position of the corresponding protective layer of force snesor is subject to reaches predetermined value, the pressure sensor transmits a signal to keyboard electricityThe controller on road, the controller control function corresponding with the function key stress point and open.
The beneficial effect of pressure inductive keyboard of the present invention is each function key location arrangements function key stress on keyboardPoint carries out transducing signal by power, and pressure sensitive limit by the shape in face, plane can also, curved surface can also, as long as in placeIt sets to be under pressure and can sense power, the signal end of sensing is reached by pressure, complete information transmission, pass through stress sizeBe transmitted signal, not by the travel limit of pressure, conducive to the slimming of keyboard of new generation, lightness, flexibility.In addition,Due to that can be bent using flexible base board, it can fold, solve the problems, such as conventional keyboard super thick inflexibility.
Preferably, each pressure sensor includes lower basal plate, upper substrate, the lower basal plate and upper substrateCorresponding end face is provided with electrode, and dielectric layer is provided between described two electrodes, and the dielectric layer uses flexible polymerObject.The pressure sensor can make this pressure inductive keyboard have high sensitivity using the above structure.
Preferably, the solving locking key of at least two function keys cooperation is provided on the keyboard circuit, it is described when pressing simultaneouslySolving locking key, function key stress point starting on the keyboard circuit.To avoid accidentally opening operation.
Preferably, it is set in the controller and is preset with pre-set pressure range, the pre-set pressure range is that can startThe range of pressure sensor, when the collected pressure of the pressure sensor is located in the pre-set pressure range, the pressureSensor sends a signal to controller, the starting of controller control function key stress point.Avoid accidentally opening operation.
Preferably, it is set in the controller and is preset with compressing time range, the compressing time range is that can startThe range of pressure sensor, when timer collects pressure pressing duration within the scope of compressing time, the pressure sensorSend a signal to controller, the starting of controller control function key stress point.Avoid accidentally opening operation.
Preferably, the protective layer is PET material, so that the keyboard has the function of oil resistant.
Detailed description of the invention
Fig. 1 is the top view of the present embodiment flexible base board；
Fig. 2 is the main view of the present embodiment.
Specific embodiment
The preferred embodiments of the present invention will be described in detail with reference to the accompanying drawing, so that advantages and features of the invention energyIt is easier to be readily appreciated by one skilled in the art, so as to make a clearer definition of the protection scope of the present invention.
Referring to shown in attached drawing 1,2, a kind of pressure inductive keyboard of the present embodiment, including flexible base board 1, pressure sensor2, every being furnished with keyboard circuit on glue 3, protective layer 4, flexible base board 1, multiple function key stress points 5 are distributed on keyboard circuit, pressThe quantity of force snesor 2 is consistent with the quantity of function key stress point 5, and is arranged on corresponding function key stress point 5, everyGlue 3 is distributed in the top of pressure sensor 2 and is located between pressure sensor 2 two-by-two, and protective layer 4 is distributed in every 3 layers of upper end of gluePET material can be selected in face, protective layer 4, by the position of external force protective layer 4 corresponding with pressure sensor 2, when with pressureWhen the power that the position of the corresponding protective layer 4 of sensor 2 is subject to reaches predetermined value, pressure sensor 2 transmits a signal to keyboard circuitController, controller controls the unlatching of corresponding with the function key stress point 5 function.
Each function key location arrangements function key stress point 5 on keyboard carries out transducing signal by power, and pressure sensitive is notLimited by the shape in face, plane can also, curved surface can also, as long as being under pressure in position senses power, pass throughPressure reaches the signal end of sensing, completes information transmission, by the signal that is transmitted of stress size, is not limited by the stroke of pressureSystem, conducive to the slimming of keyboard of new generation, lightness, flexibility.Further, since can be bent using flexible base board 1,It can fold, solve the problems, such as conventional keyboard super thick inflexibility.
In order to enable this pressure inductive keyboard has high sensitivity, then each pressure sensor 2 includes lower basal plate22, upper substrate 21, lower basal plate 22 and the corresponding end face of upper substrate 21 are provided with electrode 23, between two electrodes 23It is provided with dielectric layer 24, dielectric layer 24 uses elastomeric polymer.
In order to avoid opening by mistake the function key opened on keyboard, then realized using following at least one schemes:
Scheme one a possibility that realizing maloperation, is provided at least two functions by solving locking key on keyboard circuitThe solving locking key of key cooperation presses solving locking key when simultaneously, and function key stress point 5 starts on keyboard circuit.
Scheme two, be set with a possibility that reducing maloperation, in controller by the pressure size of pressing be preset with it is pre-If pressure limit, pre-set pressure range is the range that can start pressure sensor 2, when the collected pressure position of pressure sensor 2When in the pre-set pressure range, pressure sensor 2 sends a signal to controller, and controller control function key stress point 5 starts.
Scheme three, be set with a possibility that reducing maloperation, in controller by the length of time of pressing be preset with byTime range is pressed, compressing time range is that can start the range of pressure sensor 2, is existed when timer collects pressure pressing durationWhen within the scope of compressing time, pressure sensor 2 sends a signal to controller, and controller control function key stress point 5 starts.It avoidsAccidentally opening operation.
The technical concepts and features of embodiment of above only to illustrate the invention, its object is to allow be familiar with techniquePeople understands the contents of the present invention and is implemented, and it is not intended to limit the scope of the present invention, all spiritual according to the present inventionThe equivalent change or modification that essence is done, should be covered by the scope of protection of the present invention.