CN205788112U - A kind of adjustable capacitance pressure transducer and true person's handwriting pointer - Google Patents
A kind of adjustable capacitance pressure transducer and true person's handwriting pointer Download PDFInfo
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- CN205788112U CN205788112U CN201620199526.1U CN201620199526U CN205788112U CN 205788112 U CN205788112 U CN 205788112U CN 201620199526 U CN201620199526 U CN 201620199526U CN 205788112 U CN205788112 U CN 205788112U
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Abstract
The utility model discloses a kind of adjustable capacitance pressure transducer and true person's handwriting pointer, adjustable capacitance pressure transducer includes pressure variable capacitance, and pressure touch switchs, and has pressure detecting function；True person's handwriting pointer includes true person's handwriting optical touch-control pen, true person's handwriting electromagnetic touch pen, has pressure sensitivity function, has the writing effect of true person's handwriting.
Description
Technical field
This utility model relates to adjustable capacitance pressure transducer；Particularly relate to a kind of true person's handwriting pointer.
Background technology
Along with the progress and development of electronic product, the application of pointer is more and more extensive.There is optical touch screen at present
Pointer, the also pointer of the electronic whiteboard of photographic head identification, this kind of pointer is usually with finger or wooden stick or any thing
Body or infrared light emission rod do pointer, although this kind of pointer uses quick, easy to operate, but unfortunately without pressure sensitivity merit
Can, it is impossible to react the handwriting characteristic of writer accurately.
Although existing pointer has a pressure detecting function, but the stroke of detection pressure is big, and writing experience sense is bad, real
Existing mode is complicated, with high costs.
Utility model content
In order to overcome drawbacks described above, this utility model provides a kind of adjustable capacitance pressure transducer, can be suitable for optics
The pointer of formula touch-control sensor, or the pointer of camera head type electronic whiteboard, or electromagnetic type sense pointer and capacitance touching control
Pen, the pointer arranging this pressure transducer has the true person's handwriting effect writing pressure sensitive.
In a particular embodiment, the utility model discloses a kind of adjustable capacitance pressure transducer, including variable capacitance,
Touch switch, dynamometry handle；At least include: sensor outer housing, back-moving spring；Wherein, variable capacitance includes Jie's sheet and soft of insulating
Conducting strip；Wherein, touch switch includes two stationary contacts and movable contact spring.
The electric conductor that insulation Jie's sheet first face of described adjustable capacitance pressure transducer variable capacitance is laid, is can power transformation
The first electrode held, insulation Jie's sheet the second face is the dielectric face of variable capacitance, and the interval minimum from dielectric face is arranged
Soft conducting strip constitute variable capacitance the second electrode, soft conducting strip is compressible conductive foam, or squeezable deformation
Conductive rubber, insulation Jie's sheet dielectric be variable capacitance the first electrode and the second interelectrode capacitor dielectric.
The one side that the soft conducting strip of described adjustable capacitance pressure transducer variable capacitance is relative with variable capacitance medium,
Surface is the convex line bar of triangle, is middle convex cambered surface, is equally distributed any convex shape.
The variable capacitance dynamometry handle of described adjustable capacitance pressure transducer directly contacts soft conducting strip, and dynamometry handle is subject to
First touching power pass to soft conducting strip, and soft conducting strip produces deformation and contacts variable capacitance medium side again, passes to insulation
Jie's sheet.
The biggest soft conducting strip of touching power that the variable capacitance dynamometry handle of described adjustable capacitance pressure transducer is subject to deforms
The biggest, the compressional deformation between soft conducting strip and insulation Jie's sheet is the biggest, squeezing between soft conducting strip and variable capacitance medium side
Press contacts area is the biggest, and variable capacitance the first electrode and the second interelectrode relative area are the biggest, variable capacitance the first electrode with
Second interelectrode capacitance is the biggest.
Described adjustable capacitance pressure transducer variable capacitance the first electrode and the second interelectrode different capacitance variations values
Embodying the different pressures value of dynamometry handle transmission, capacitance variations value signal exports to external circuit, and capacitance variations value signal is for outside
Circuit does signals collecting or control.
Described adjustable capacitance pressure transducer touch switch, variable capacitance the first electrode is the movable contact spring of touch switch,
Stationary contact is arranged on sensor outer housing, arranges back-moving spring between insulation Jie's sheet and sensor outer housing, and back-moving spring can be
Wire spring, can be to recover foam, can be flexible glue, and insulation Jie's sheet is produced displacement by the pressure of dynamometry handle and compresses
Back-moving spring, touch switch movable contact spring touching short circuit is arranged on two stationary contacts of sensor outer housing, touch switch two stationary contact
Short circuit turns on, and the distress resolves reset back-moving spring of dynamometry handle resets, and touch switch movable contact spring leaves two of sensor outer housing
Stationary contact, touch switch two stationary contact disconnects.
Described adjustable capacitance pressure transducer touch switch signal exports to external circuit, makees control letter for external circuit
Number.
This utility model further relates to a kind of true person's handwriting pointer, including true person's handwriting optical touch-control pen, true person's handwriting electromagnetic touch
Pen；Described true person's handwriting optical touch-control pen includes described adjustable capacitance pressure transducer, a circuit system and a shell；At least wrap
Include: battery, infrared emission head and nib；Wherein, battery is the disposable battery that standardized detachable is changed, or recharge makes
Rechargeable battery；Wherein, the dynamometry handle of adjustable capacitance pressure transducer is held concurrently pointer nib, wherein, infrared emission head bag
Including Infrared Lens and infrared transmitting tube, infrared transmitting tube is arranged in Infrared Lens, and Infrared Lens is arranged on around nib, infrared
The surrounding of the infrared alignment pointer that infrared transmitting tube is launched by lens launches uniformly；Wherein, before a shell includes a shell
End and an outer casing back；In outer casing back, battery, a circuit system are set；In case nose, variable capacitance pressure is set
Sensor and infrared emission head.
Wherein, a circuit system includes rf modulations and radio frequency transmitter circuitry, drive circuit, and power supply controls and postpones to close
The conversion of deenergizing, supply voltage and function button, rechargeable battery also includes charging circuit in this way, and charging circuit can be contact
Wired charging circuit, or non-contact type wireless charging circuit.
Circuit system power supply controls and is delayed to turn off circuit and is connected touch switch short circuit Continuity signal, and a circuit system is penetrated
Frequency modulation system is connected the capacitance variations value signal of adjustable capacitance pressure transducer with radio frequency transmitter circuitry.
The power supply of circuit system controls and is delayed to turn off that circuit is provided with power inlet, power output, power supply fill
Automatically controlled donsole, style of writing switching signal control mouth；The touch-control that style of writing switching signal controls in mouth connection capacitance pressure transducer is opened
Closing, power supply controls and is delayed to turn off circuit and such as receives adjustable capacitance pressure transducer at off-mode and be connected touch switch short circuit
Continuity signal, will turn between this circuit power input port and power output, and a circuit system will enter duty；In work
Make state as do not received connection touch switch short circuit Continuity signal for a long time, between this circuit power input port and power output
Can disconnect, circuit system will enter off-mode；Charge mode, this circuit power input port and electricity is accessed in any duty
Can disconnect between extraction slit, a circuit system will lock into off-mode, and is maintained in charge mode.
The rf modulations of circuit system and radio frequency transmitter circuitry receive the capacitance variations of adjustable capacitance pressure transducer
Being modulated into radio-frequency transmissions after the acquired coding of value signal to peripheral hardware, peripheral hardware can be optical touch control induction apparatus, can be computer
Or mobile phone, peripheral hardware receives a radiofrequency signal and becomes pointer to write pressure the capacitance variations value signal demodulated corresponding conversion
Value signal.
The drive circuit of circuit system is under circuit system duty, and drive circuit constantly will be sent to infrared emission head
Driving signal, infrared emission head will continuously send out infrared ray, and optical touch induction apparatus is constantly launching infrared signal at nib
The location recognition at infrared emission head place become current nib in the handwriting trace position writing district.
The touch switch of adjustable capacitance pressure transducer triggers and wakes up a circuit system job up, and variable capacitance pressure passes
The variable capacitance variable quantity of sensor is that pointer writes pressure, and the position that infrared emission head writes district at optical touch induction apparatus is
The position at pointer handwriting trace place.
This utility model further relates to a kind of true person's handwriting electromagnetic touch pen and includes described adjustable capacitance pressure transducer, pen
Circuit system and a shell；At least include: battery, electromagnetic signal output winding and nib；Wherein, battery be standardized detachable more
The disposable battery changed, or the rechargeable battery that recharge uses；Wherein, the dynamometry handle of adjustable capacitance pressure transducer is held concurrently
Pointer nib, wherein, electromagnetic signal output winding is close around forming by the minimum one layer of multi-turn of the plain conductor of surface insulation, if
Put around nib；Wherein, a shell includes a case nose and an outer casing back, and a case nose is insulant；Outside Bi
Battery, a circuit system are set in shell rear end；In case nose, adjustable capacitance pressure transducer is set and electromagnetic signal is defeated
Go out coil.
Wherein, a circuit system includes LC active oscillator circuitry, power supply control be delayed to turn off circuit, supply voltage turns
Changing and function button, rechargeable battery also includes charging circuit in this way, and charging circuit can be contact charging circuit, it is also possible to be
Non-contact type wireless charging circuit.
Circuit system power supply controls and the touch switch being delayed to turn off circuit and being connected adjustable capacitance pressure transducer, can
The variable capacitance becoming capacitance pressure transducer is connected in parallel on a LC resonant tank for circuit system LC active oscillator circuitry.
The power supply of circuit system controls and is delayed to turn off that circuit is provided with power inlet, power output, power supply fill
Automatically controlled donsole, style of writing switching signal control mouth；The touch-control that style of writing switching signal controls in mouth connection capacitance pressure transducer is opened
Closing, power supply controls and is delayed to turn off circuit and such as receives adjustable capacitance pressure transducer at off-mode and be connected touch switch short circuit
Continuity signal, will turn between this circuit power input port and power output, and a circuit system will enter duty；In work
Make state as do not received connection touch switch short circuit Continuity signal for a long time, between this circuit power input port and power output
Can disconnect, circuit system will enter off-mode；Charge mode, this circuit power input port and electricity is accessed in any duty
Can disconnect between extraction slit, a circuit system will lock into off-mode, and is maintained in charge mode.
The LC active oscillator circuitry of circuit system includes other circuit, LC resonant tank, electromagnetic signal output winding
Being the resonant inductance of LC resonant tank, the variable capacitance in adjustable capacitance pressure transducer is connected in parallel on LC resonant tank, button
Being connected in parallel on LC resonant tank with capacitances in series, other adjusts electric capacity and is connected in parallel on LC resonant tank, and LC resonant tank includes that electromagnetism is believed
Number output winding, the variable capacitance in pressure transducer, the electric capacity connected with button and other adjust electric capacity, such as pressure transducer
Interior variable capacitance changes, or button presses the electric capacity accessing series connection, or changes other shake adjusting electric capacity LC active oscillator
Swing frequency can correspondence change.
The resonant inductance of LC active oscillator circuitry hold concurrently magnetic signal output winding output alternating electromagnetism signal, alternating electromagnetism believe
Number comprising pressure sensitivity signal and the push button signalling that pen is write, output signal can be adjusted capacitive vernier calibration by other.
Accompanying drawing explanation
Accompanying drawing 1 is that this utility model adjustable capacitance pressure transducer constitutes schematic diagram substantially.
Accompanying drawing 2.1 and Fig. 2 .2 is this utility model adjustable capacitance pressure transducer embodiment schematic diagram.
Accompanying drawing 3 is this utility model adjustable capacitance pressure transducer insulation Jie's sheet schematic diagram.
Accompanying drawing 4.1 is the signal of this utility model adjustable capacitance pressure transducer triangle convex line bar thin-skinned property conducting strip
Figure.
Accompanying drawing 4.2 is convex globoidal soft conducting strip schematic diagram in the middle of this utility model adjustable capacitance pressure transducer.
Accompanying drawing 5.1 is that this utility model adjustable capacitance pressure transducer triangle convex line bar thin-skinned property conducting strip is with variable
The biggest schematic diagram of extruding force more large access area between capacitor dielectric face.
Accompanying drawing 5.2 is the soft conducting strip of convex globoidal and variable capacitance in the middle of this utility model adjustable capacitance pressure transducer
The biggest schematic diagram of extruding force more large access area between medium side.
Accompanying drawing 6.1-Fig. 6 .4 is this utility model true person's handwriting optical touch-control pen schematic diagram.
Accompanying drawing 7.1-Fig. 7 .4 is this utility model true person's handwriting optical touch-control pen schematic diagram.
Detailed description of the invention
In order to make the technical problems to be solved in the utility model, technical scheme and useful technique effect are more clear bright
In vain, below in conjunction with accompanying drawing and embodiment, this utility model is described in further detail.It should be understood that this place is retouched
The specific embodiment stated, only in order to explain this utility model, is not used to limit this utility model.
Fig. 1 shows this utility model adjustable capacitance pressure transducer, and adjustable capacitance pressure transducer is by can power transformation
Holding (301), touch switch (302), dynamometry handle (303) is constituted.
Fig. 2 .1-Fig. 2 .2 and Fig. 3 and Fig. 4 .1-Fig. 4 .2 and Fig. 5 .1-Fig. 5 .2 shows this utility model variable capacitance
Pressure Sensor Implementation one, embodiment one is included absolutely by sensor outer housing (602), back-moving spring (304), variable capacitance
Edge Jie's sheet (305), soft conducting strip (306), touch switch (302) are constituted；Variable capacitance insulation Jie's sheet (305) first face is laid
Electric conductor, is the first electrode of variable capacitance, and variable capacitance insulation Jie's sheet (305) second face is the dielectric of variable capacitance
Face, the interval minimum from dielectric face arranges soft conducting strip (306) and constitutes the second electrode of variable capacitance, soft conducting strip
(306) it is compressible conductive foam, or the conductive rubber of squeezable deformation, the dielectric of insulation Jie's sheet (305) second
It is variable capacitance the first electrode and the second interelectrode capacitor dielectric.Soft conducting strip (306) is relative with variable capacitance medium
Simultaneously, surface is the convex line bar of triangle.The one side that soft conducting strip (307) is relative with variable capacitance medium, is middle convex arc
Face, soft conducting strip can also be equally distributed any convex shape, and variable capacitance dynamometry handle (303) directly contacts soft leading
Electricity sheet (306), first the touching power (603) that dynamometry handle is subject to pass to soft conducting strip (306), and soft conducting strip (306) produces
Deformation contacts variable capacitance medium side again, i.e. passes to Jie's sheet that insulate.The touching power (603) that variable capacitance dynamometry handle (303) is subject to
The deformation of the biggest soft conducting strip (306) is the biggest, and the compressional deformation between soft conducting strip (306) and insulation Jie's sheet second is the biggest,
Extruding contact area between soft conducting strip (306) and variable capacitance medium side is the biggest, variable capacitance the first electrode and second
Interelectrode relative area is the biggest, and variable capacitance the first electrode and the second interelectrode capacitance are the biggest；Accompanying drawing 5.1 shows three
The relation of extruding force and contact area between dihedral convex line bar thin-skinned property conducting strip (306) and variable capacitance medium side, in figure 0
The extruding force minimum shade gross area is minimum, and the 4 extruding force maximum shade gross areas are maximum, and accompanying drawing 5.2 shows that middle convex arc is thin-skinned
Property conducting strip (307) and variable capacitance medium side between the relation of extruding force and contact area, the extruding force minimum shade of 0 in figure
The gross area is minimum, and the 4 extruding force maximum shade gross areas are maximum.Variable capacitance the first electrode and the second interelectrode different electric capacity become
Change value embodies the different pressures value of dynamometry handle transmission, and capacitance variations value signal exports to external circuit, and capacitance variations value signal supplies
External circuit does signals collecting or control.Variable capacitance the first electrode Jie's sheet the first face of i.e. insulating is the dynamic of touch switch (302)
Contact (302b), stationary contact (302a) is arranged on sensor outer housing (602), insulation Jie's sheet (305) and sensor outer housing (602)
Between back-moving spring (304) is set, back-moving spring (304) can be wire spring, can be to recover foam, can be soft
Glue, insulation Jie's sheet (306) is produced displacement compression spring by the pressure (603) of dynamometry handle (303), and touch switch (302) moves
Contact (302b) touching short circuit is arranged on two stationary contacts (302a) of sensor outer housing (602), touch switch (302) two stationary contact
Point (302a) short circuit turns on, and the pressure (603) of dynamometry handle (303) disappears and plays back-moving spring (304) reset, touch switch (302)
Movable contact spring (302b) leaves two stationary contacts (302a) of sensor outer housing (602), touch switch (302) two stationary contact (302a)
Disconnecting, touch switch signal (204) exports to external circuit, does control signal for external circuit.
True person's handwriting pointer of the present utility model, it is proposed that a kind of true person's handwriting optical touch-control pen and one true person's handwriting electromagnetism touch
Control pen.
Fig. 6 .1-Fig. 6 .4 shows this utility model true person's handwriting optical touch-control pen, and true person's handwriting optical touch-control pen is by can power transformation
Appearance formula pressure transducer (300), a circuit system (100) and a shell are constituted.Outside shell is by a case nose (602) and pen
Shell rear end (601).Arrange in outer casing back (601) in battery (501), a circuit system (100), a case nose (602)
Adjustable capacitance pressure transducer (300), infrared emission head (401) are set.
Battery (501) is the disposable battery that standardized detachable is changed, it is also possible to be the rechargeable battery of recharge use；
The dynamometry handle (303) of adjustable capacitance pressure transducer (300) is held concurrently pointer nib (303), and infrared emission head (401) includes red
Outer lens and infrared transmitting tube, infrared transmitting tube is arranged in Infrared Lens, and Infrared Lens is arranged on nib (303) around, red
The surrounding of the infrared alignment pointer that infrared transmitting tube is launched by outer lens launches uniformly.
Circuit system (100) includes rf modulations and radio frequency transmitter circuitry (105), drive circuit (106), power supply control
Making and be delayed to turn off circuit (102), supply voltage conversion (103) and function button (104), rechargeable battery also includes charging in this way
Circuit (101), charging circuit (101) can be the wired charging circuit of contact, can be contactless wireless charging circuit.
Circuit system (100) power supply controls and is delayed to turn off circuit (102) and is connected touch switch short circuit Continuity signal
(204), rf modulations is connected the capacitance variations value signal of adjustable capacitance pressure transducer with radio frequency transmitter circuitry (105)
(205)。
The power supply of circuit system (100) controls and is delayed to turn off circuit (102) and is provided with power inlet (VIN), electricity
Extraction slit (VOUT), power source charges control mouth (CC), touch switching signal control mouth (PC).Touch switching signal and control mouth (PC) even
Connecing the touch switch (302) in adjustable capacitance pressure transducer (300), power supply controls and is delayed to turn off circuit (102) in pass
Machine state such as receives adjustable capacitance pressure transducer (300) touch switch (302) short circuit Continuity signal, and this circuit power inputs
To turn between mouth (VIN) and power output (VOUT), a circuit system (100) will enter duty；In working order
As do not received connection touch switch (302) short circuit Continuity signal, this circuit power input port (VIN) and power output for a long time
(VOUT) can disconnect between, circuit system (100) will enter off-mode；Charge mode, this electricity is accessed in any duty
Can disconnect between road power inlet (VIN) and power output (VOUT), a circuit system (100) will lock into shutdown shape
State, and it is maintained in charge mode, rf modulations and radio frequency transmitter circuitry (105) receive adjustable capacitance pressure transducer
(300) it is modulated into radio-frequency transmissions to peripheral hardware, rf modulations and radio-frequency transmissions after capacitance variations value signal (205) acquired coding
Circuit (105) can be bluetooth, WiFi, general 2.4GHz or the radio circuit of other frequency range, and peripheral hardware can be optical touch control
Induction apparatus (403), can be computer or mobile phone, and peripheral hardware receives a radiofrequency signal by the capacitance variations value signal demodulated right
Pointer should be converted into and write pressure value signal.The drive circuit (106) of circuit system (100) is at a circuit system work shape
Under state, driving signal will constantly be sent by drive circuit (106) to infrared emission head, and infrared emission head (401) will continuously send out red
Outer linear light, optical touch induction apparatus (403) constantly launches the infrared emission head (401) of infrared signal (402) nib (303) place
The location recognition at place becomes current nib in the handwriting trace position writing district.Touching of adjustable capacitance pressure transducer (300)
Control switch (302) triggers and wakes up a circuit system (100) work, the variable capacitance of adjustable capacitance pressure transducer (300) up
(301) variable quantity is that pointer writes pressure, and infrared emission head (401) writes the position in district at optical touch induction apparatus (403)
It it is the position at pointer handwriting trace place.
Fig. 7 .1-Fig. 7 .4 shows this utility model true person's handwriting electromagnetic touch pen, and true person's handwriting electromagnetic touch pen is by can power transformation
Appearance formula pressure transducer (300), a circuit system (100) and a shell are constituted.Outside shell is by a case nose (602) and pen
Shell rear end (601).Arrange in outer casing back (601) in battery (501), a circuit system (100), a case nose (601)
If adjustable capacitance pressure transducer (300), electromagnetic signal output winding (L).
Battery (501) is the disposable battery that standardized detachable is changed, it is also possible to be the rechargeable battery of recharge use；
The dynamometry handle (303) of adjustable capacitance pressure transducer (300) is held concurrently pointer nib (303), and electromagnetic signal output winding (L) is
Close around forming by the minimum one layer of multi-turn of the plain conductor of surface insulation, it is arranged on nib (303) around；(602) end before shell
It it is insulant.
Circuit system (100) includes LC active oscillator circuitry (105), power supply control be delayed to turn off circuit (102),
Supply voltage conversion (103) and function button (104), rechargeable battery also includes charging circuit (101), charging circuit in this way
(101) can be contact charging circuit, it is also possible to be contactless wireless charging circuit, power supply controls and is delayed to turn off circuit
(102) touch switch (302) of adjustable capacitance pressure transducer (300) is connected, adjustable capacitance pressure transducer (300)
Variable capacitance (301) be connected in parallel on a circuit system (100) LC active oscillator circuitry (105) LC resonant tank (including: C,
C1, C2, C △ that is 301 and L).
The power supply of circuit system (100) controls and is delayed to turn off circuit (102) and is provided with power inlet (VIN), electricity
Extraction slit (VOUT), power source charges control mouth (CC), touch switching signal control mouth (PC)；Touch switching signal and control mouth (PC) even
Connecing the touch switch (302) in adjustable capacitance pressure transducer (300), power supply controls and is delayed to turn off circuit (102) in pass
Machine state such as receives adjustable capacitance pressure transducer (300) touch switch (302) short circuit Continuity signal, and this circuit power inputs
To turn between mouth (VIN) and power output (VOUT), a circuit system (100) will enter duty；In working order
As do not received connection touch switch (302) short circuit Continuity signal, this circuit power input port (VIN) and power output for a long time
(VOUT) can disconnect between, circuit system (100) will enter off-mode；Charge mode, this electricity is accessed in any duty
Can disconnect between road power inlet (VIN) and power output (VOUT), a circuit system (100) will lock into shutdown shape
State, and it is maintained in charge mode.
The LC active oscillator circuitry of circuit system (100) includes other circuit (701), LC resonant tank, and electromagnetism is believed
Number output winding (L) is the resonant inductance of LC resonant tank, and (C △ is i.e. for the variable capacitance in adjustable capacitance pressure transducer
301) being connected in parallel on LC resonant tank, function button (104) and electric capacity (C1 and C2) series and parallel are at LC resonant tank, and other adjusts
Electric capacity (C) is connected in parallel on LC resonant tank, and LC resonant tank includes electromagnetic signal output winding (L), variable in pressure transducer
Electric capacity (C △ that is 301), the electric capacity (C1 and C2) connected with function button (104) and other adjustment electric capacity (C), LC active oscillating
The operating frequency f thus formula of device circuit (105) determines:Understood such as pressure by upper formula
Variable capacitance (C △ that is 301) in force transducer (300) changes, or button presses the electric capacity (C1 and C2) accessing series connection, or changes
Becoming other and adjust electric capacity (C), concussion frequency f of LC active oscillator (105) can correspondence change.
The resonant inductance of LC active oscillator (105) circuit hold concurrently magnetic signal output winding (L) output alternating electromagnetism signal
(402), alternating electromagnetism signal (402) comprises pressure sensitivity signal and the function button signal that pen is write, and output signal can be adjusted by other
Whole electric capacity (C) fine setting calibration.
Nib can be insulant, it is also possible to be conductive material, and can to connect electric field defeated for conductive material nib 107 in this way
Go out signal 402 with direct substitution electric field signal active antenna 114；Or link together with electric field signal active antenna 114 and to do electricity
Field signal active antenna, strengthens the radiant intensity of electric field signal, and strengthen capacitive pointer writes sensitivity.
In order to more preferably realize the high accuracy of true person's handwriting pointer of the present utility model, true handwriting function, the present invention is public
Open a kind of special nib.Use the lead zirconate titanate PZT piezoelectric ceramics being doped with Mo, Ti, Na and Cr at nib, can be used to
Experience stress, and electric field signal can be exported as active antenna.Component and each components by weight that PZT includes be: Mo:
3.0～6.6wt%, 4.0%～5.6% it is preferably；Ti:0.01～0.1wt%, preferably 0.05～0.1%；Na:0.01～
0.1wt%, preferably 0.03%～0.05%；Cr:2～5wt%, preferably 3～3.4%.
The d of material after doping33Raising with Kp value, hardness increases, and voltage inductance should be sensitive, can export relatively when as antenna
Strong electric field signal.
The PZT material of doping first passes through N2Sinter with in Ar atmosphere, then at H2Atmosphere sinters, at O2Atmosphere is carried out
The sintering of the same terms, the effect of three sintering is not only the superposition of simple three sintering effects, the PZT piezoelectric ceramics of doping
There is more space, at N2With Ar atmosphere can make N2Enter in pottery pore, at H2Atmosphere makes to enter the N in space2More
It is active, finally at O2Atmosphere can make O2Replace N2, and oxygen molecule is replaced easily by the oxonium ion in lattice and is arranged
Remove.So dopant material structure of sintering is the finest and close.It is sintered under the pressure of 300-325MPa carrying out, general high-pressure sinter
All at below 200MPa, but the application is used the piezoelectric ceramics of four kinds of materials sintering, in order to adulterant effect more
Good is embodied in ceramic performance, is sintered best under the pressure of employing 300-325MPa.
Claims (27)
1. an adjustable capacitance pressure transducer, including variable capacitance, touch switch, dynamometry handle；
At least include: sensor outer housing, back-moving spring；
Wherein, variable capacitance includes insulate Jie's sheet and soft conducting strip；
Wherein, touch switch includes two stationary contacts and movable contact spring.
2. adjustable capacitance pressure transducer as claimed in claim 1, it is characterised in that conduction is laid in insulation Jie's sheet the first face
Body, is the first electrode of variable capacitance, and insulation Jie's sheet the second face is the dielectric face of variable capacitance, minimum from dielectric face
Interval arrange soft conducting strip constitute variable capacitance the second electrode, soft conducting strip is compressible conductive foam, or can
The conductive rubber of compressional deformation, the dielectric of insulation Jie's sheet second is variable capacitance the first electrode and the second interelectrode electricity
Hold medium.
3. adjustable capacitance pressure transducer as claimed in claim 1, it is characterised in that the soft conducting strip of variable capacitance with
The one side that variable capacitance medium is relative, surface is the convex line bar of triangle, or middle convex cambered surface, or equally distributed
Meaning convex shape.
4. the adjustable capacitance pressure transducer as according to any one of claim 1-3, it is characterised in that electric capacity dynamometry handle is straight
Contacting soft conducting strip, first the touching power that dynamometry handle is subject to pass to soft conducting strip, and soft conducting strip produces deformation and connects
Touch variable capacitance medium side, pass to Jie's sheet that insulate.
5. the adjustable capacitance pressure transducer as according to any one of claim 1-3, it is characterised in that what dynamometry handle was subject to touches
Impact force the biggest soft conducting strip deformation the biggest, the compressional deformation between soft conducting strip and insulation Jie's sheet is the biggest, soft conducting strip with
Extruding contact area between variable capacitance medium side is the biggest, and variable capacitance the first electrode and the second interelectrode relative area are more
Greatly, variable capacitance the first electrode and the second interelectrode capacitance are the biggest.
6. adjustable capacitance pressure transducer as claimed in claim 5, it is characterised in that variable capacitance the first electrode and second
The different pressures value of interelectrode different capacitance variations value correspondence dynamometry handle transmission, capacitance variations value signal exports to external circuit
Do signals collecting or control.
7. adjustable capacitance pressure transducer as claimed in claim 1 or 2, it is characterised in that variable capacitance the first electrode is
The movable contact spring of touch switch, stationary contact is arranged on sensor outer housing.
8. adjustable capacitance pressure transducer as claimed in claim 1 or 2, it is characterised in that insulation Jie's sheet first and biography
Between sensor shell, elastomeric element is set.
9. adjustable capacitance pressure transducer as claimed in claim 1 or 2, it is characterised in that elastomeric element is tinsel bullet
Spring, foam or flexible glue can be recovered.
10. the adjustable capacitance pressure transducer as according to any one of claim 1-3, it is characterised in that insulation Jie's sheet is subject to
Pressure to dynamometry handle produces displacement compression reseting spring, and touch switch movable contact spring touching short circuit is arranged on sensor outer housing
Two stationary contacts, touch switch two stationary contact short circuit turns on, and the distress resolves reset back-moving spring of dynamometry handle resets, touch switch
Movable contact spring leaves two stationary contacts of sensor outer housing, and touch switch two stationary contact disconnects.
11. adjustable capacitance pressure transducers as claimed in claim 10, it is characterised in that the output of touch switch signal controls
External circuit.
12. 1 kinds of true person's handwriting pointer, including true person's handwriting optical touch-control pen and true person's handwriting electromagnetic touch pen, it is characterised in that bag
Include adjustable capacitance pressure transducer as claimed in claim 1.
13. true person's handwriting pointer as claimed in claim 12, it is characterised in that described true person's handwriting optical touch-control pen includes described
Adjustable capacitance pressure transducer, a circuit system and a shell, also include: battery, infrared emission head and nib；
Wherein, the dynamometry handle of adjustable capacitance pressure transducer is held concurrently pointer nib,
Wherein, infrared emission head includes Infrared Lens and infrared transmitting tube, and infrared transmitting tube is arranged in Infrared Lens, infrared
Mirror is arranged on around nib, and the surrounding of the infrared alignment pointer that infrared transmitting tube is launched by Infrared Lens launches uniformly；
Wherein, a shell includes a case nose and an outer casing back；
In outer casing back, battery, a circuit system are set；
In case nose, adjustable capacitance pressure transducer and infrared emission head are set；
Wherein, a circuit system includes rf modulations and radio frequency transmitter circuitry, drive circuit, and power supply controls and is delayed to turn off electricity
Road, supply voltage conversion and function button.
14. true person's handwriting pointer as claimed in claim 13, it is characterised in that a circuit system power supply controls and is delayed to turn off
Circuit connects touch switch short circuit Continuity signal, and a circuit system rf modulations is connected variable capacitance pressure with radio frequency transmitter circuitry
The capacitance variations value signal of force transducer.
15. true person's handwriting pointer as claimed in claim 13, it is characterised in that the power supply of a circuit system controls and postpones to close
Deenergizing is provided with power inlet, power output, power source charges controls mouth, style of writing switching signal controls mouth；Style of writing switchs
Signal controls mouth and connects the touch switch in capacitance pressure transducer, and power supply controls and is delayed to turn off circuit at off-mode such as
Receive adjustable capacitance pressure transducer and connect touch switch short circuit Continuity signal, will between power inlet and power output
Conducting, a circuit system will enter duty；In working order as do not received connection touch switch short circuit conducting letter for a long time
Number, can disconnect between power inlet and power output, circuit system will enter off-mode；Access in any duty
Charge mode, can disconnect between power inlet and power output, and a circuit system will lock at off-mode, and maintenance
In charge mode.
16. true person's handwriting pointer as claimed in claim 13, it is characterised in that the rf modulations of circuit system and radio-frequency transmissions
Circuit is modulated into radio-frequency transmissions to outward after receiving the acquired coding of capacitance variations value signal of adjustable capacitance pressure transducer
If peripheral hardware receives a radiofrequency signal and the capacitance variations value signal demodulated corresponding conversion becomes pointer write force value letter
Number.
17. true person's handwriting pointer as claimed in claim 13, it is characterised in that the drive circuit of circuit system is at circuit system
Under duty, driving signal constantly sent by drive circuit to infrared emission head, and infrared emission head will continuously send out infrared signal,
Optical touch induction apparatus becomes current nib to exist the location recognition at the infrared emission head place constantly launching infrared signal at nib
Write the handwriting trace position in district.
The 18. true person's handwriting pointer as according to any one of claim 13-15, it is characterised in that variable capacitance pressure passes
The touch switch of sensor triggers and wakes up a circuit system job up, and variable quantity is that pointer writes pressure, and infrared emission head is at optics
Touch-control sensor writes the position that the position in district is pointer handwriting trace place.
19. true person's handwriting pointer as claimed in claim 12, it is characterised in that
Described true person's handwriting electromagnetic touch pen includes adjustable capacitance pressure transducer, a circuit system and a shell；Also include: electricity
Pond, electromagnetic signal output winding and nib；
Wherein, the dynamometry handle of adjustable capacitance pressure transducer is held concurrently pointer nib,
Wherein, electromagnetic signal output winding is close around forming by the minimum one layer of multi-turn of the plain conductor of surface insulation, is arranged on pen
Point is around；
Wherein, a shell includes a case nose and an outer casing back, and a case nose is insulant；
In outer casing back, battery, a circuit system are set；
In case nose, adjustable capacitance pressure transducer and electromagnetic signal output winding are set；
Wherein, a circuit system includes LC active oscillator circuitry, power supply control be delayed to turn off circuit, supply voltage conversion and
Function button.
20. true person's handwriting pointer as claimed in claim 19, it is characterised in that circuit system power supply controls and is delayed to turn off electricity
Road connects adjustable capacitance pressure transducer touch switch.
21. true person's handwriting pointer as claimed in claim 19, it is characterised in that the power supply of a circuit system controls and postpones to close
Deenergizing is provided with power inlet, power output, power source charges controls mouth, style of writing switching signal controls mouth；Style of writing switchs
Signal controls mouth and connects the touch switch in capacitance pressure transducer, and power supply controls and is delayed to turn off circuit at off-mode such as
Receive adjustable capacitance pressure transducer and connect touch switch short circuit Continuity signal, will between power inlet and power output
Conducting, a circuit system will enter duty；In working order as do not received connection touch switch short circuit conducting letter for a long time
Number, can disconnect between power inlet and power output, circuit system will enter off-mode；Access in any duty
Charge mode, can disconnect between power inlet and power output, and a circuit system will lock at off-mode, and maintenance
In charge mode.
22. true person's handwriting pointer as claimed in claim 19, it is characterised in that electromagnetic signal output winding is LC resonant tank
Resonant inductance.
23. true person's handwriting pointer as claimed in claim 19, it is characterised in that variable in adjustable capacitance pressure transducer
Electric capacity is connected in parallel on LC resonant tank, and button and capacitances in series are connected in parallel on LC resonant tank, and other adjusts electric capacity and is connected in parallel on LC resonance
Loop.
The 24. true person's handwriting pointer as according to any one of claim 19-23, it is characterised in that LC resonant tank includes electricity
Magnetic signal output winding, the variable capacitance in pressure transducer, the electric capacity connected with button and other adjustment electric capacity.
The 25. true person's handwriting pointer as according to any one of claim 19-23, it is characterised in that in pressure transducer can
Change is held in power transformation, or button presses the electric capacity accessing series connection, or changes other adjustment electric capacity LC active oscillator frequency shift.
The 26. true person's handwriting pointer as according to any one of claim 19-23, it is characterised in that LC active oscillator circuitry
Resonant inductance hold concurrently magnetic signal output winding output alternating electromagnetism signal.
27. true person's handwriting pointer as claimed in claim 26, it is characterised in that electromagnetic signal output winding output alternating electromagnetism
Signal packet contains pressure sensitivity signal and the push button signalling that pen is write.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620199526.1U CN205788112U (en) | 2016-03-15 | 2016-03-15 | A kind of adjustable capacitance pressure transducer and true person's handwriting pointer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620199526.1U CN205788112U (en) | 2016-03-15 | 2016-03-15 | A kind of adjustable capacitance pressure transducer and true person's handwriting pointer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205788112U true CN205788112U (en) | 2016-12-07 |
Family
ID=57414617
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620199526.1U Active CN205788112U (en) | 2016-03-15 | 2016-03-15 | A kind of adjustable capacitance pressure transducer and true person's handwriting pointer |
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| Country | Link |
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| CN (1) | CN205788112U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017185734A1 (en) * | 2016-04-28 | 2017-11-02 | 广东宗华触控科技有限公司 | True handwriting stylus and touch control device |
| CN107479770A (en) * | 2017-09-27 | 2017-12-15 | 广州视源电子科技股份有限公司 | Touch input device, infrared touch panel and touch screen interaction system |
| CN108345394A (en) * | 2017-01-25 | 2018-07-31 | 宏碁股份有限公司 | Input unit |
| CN110686808A (en) * | 2019-10-22 | 2020-01-14 | 北京汉王鹏泰科技股份有限公司 | Capacitive pressure sensor and electronic pen |
| CN110998267A (en) * | 2017-08-07 | 2020-04-10 | 阿尔卑斯阿尔派株式会社 | Load sensor unit and input device |
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2016
- 2016-03-15 CN CN201620199526.1U patent/CN205788112U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017185734A1 (en) * | 2016-04-28 | 2017-11-02 | 广东宗华触控科技有限公司 | True handwriting stylus and touch control device |
| US10901533B2 (en) | 2016-04-28 | 2021-01-26 | Guangdong Zonghua Touch Control Technology Co Ltd. | Real handwriting stylus and a touch device |
| CN108345394A (en) * | 2017-01-25 | 2018-07-31 | 宏碁股份有限公司 | Input unit |
| CN108345394B (en) * | 2017-01-25 | 2020-12-22 | 宏碁股份有限公司 | Input device |
| CN110998267A (en) * | 2017-08-07 | 2020-04-10 | 阿尔卑斯阿尔派株式会社 | Load sensor unit and input device |
| CN107479770A (en) * | 2017-09-27 | 2017-12-15 | 广州视源电子科技股份有限公司 | Touch input device, infrared touch panel and touch screen interaction system |
| WO2019061864A1 (en) * | 2017-09-27 | 2019-04-04 | 广州视源电子科技股份有限公司 | Touch input device, infrared touch screen and touch screen interactive system |
| CN107479770B (en) * | 2017-09-27 | 2020-01-10 | 广州视源电子科技股份有限公司 | Touch input device, infrared touch screen and touch screen interaction system |
| CN110686808A (en) * | 2019-10-22 | 2020-01-14 | 北京汉王鹏泰科技股份有限公司 | Capacitive pressure sensor and electronic pen |
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| C14 | Grant of patent or utility model | ||
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| TR01 | Transfer of patent right |
Effective date of registration: 20200525 Address after: 343000 phase II of Wan'an Industrial Park, Ji'an City, Jiangxi Province Patentee after: Jiangxi Huachuang Touch Technology Co., Ltd Address before: 518000 Guangdong city of Shenzhen province Longhua Hua Ning Lu Heng Changrong (Xing Hui) industrial area E building 6 floor Patentee before: GUANGDONG ZONGHUA TOUCH CONTROL TECHNOLOGY Co.,Ltd. |