CN102053727B - Multi-refill pressure-sensitive electromagnetic pen - Google Patents

Abstract

A multi-refill pressure-sensing electromagnetic pen comprises a plurality of refills, a plurality of sensing elements, a shell, a coil and a circuit board, wherein the refills are covered in the shell, the coil is wound on the shell and connected to the circuit board, the circuit board and the sensing elements are positioned at the tail end of the refills, each refill is provided with a refill, a magnetic pen holder, an elastic component and an action mechanism, the action mechanism can be pushed to enable the refill to extend out of the front end of the shell and be used for writing or drawing on a digital board, the elastic component is used for buffering the force applied by the refill to the digital board, the sensing elements are used for switching capacitance values in the circuit board to change the emission frequency, and therefore the multi-refill pressure-sensing electromagnetic pen has the function of displaying different colors on a.

Description

Many pen cores pressure sensing type time writer

Technical field

The present invention is relevant a kind of many pen cores pressure sensing type time writer, the different transmission frequencies that especially have.

Background technology

Universal day by day along with computing machine; Except keyboard provides the function of character input; Also have many different input to import different information, such as providing cursor to move hand-written and digiboard input system drawing function with mouse, the especially tool of point selection function to make things convenient for the user.

The digiboard input system generally comprises detecting plate, control panel and time writer; Wherein time writer has electromagnetic property, can launch the electromagnetic wave of particular frequency range, and the detecting plate has a plurality of electromagnetism detecing elements or sensing element; In order to the electromagnetic wave of detecting time writer and the style of writing application of force size of detecting time writer; And control panel has control circuit, can the detection signal of detecting plate be converted to the signal of tool suitable position standard and form, and then be sent to computing machine; Carrying out the function that time writer was clicked, or demonstrate handwritten word, symbol or the picture of time writer on the detecting plate by display.Because the digiboard input system is similar to general hand-written effect more; Not only but input character more can be drawn, and is big or small by the style of writing application of force of time writer simultaneously; Can show the depth and the thickness of lines, so the digiboard input system has been widely used in the Digital Drawing field.

Yet; The shortcoming of prior art is that single time writer only has single pen core, can only on the display of computing machine, demonstrate solid color; Change the color that time writer is shown like needs on display; Then must use another time writer, because computing machine is to utilize system software to judge the transmission frequency of time writer, with the color that determines on display, to be shown.Therefore, for the application of needs use different colours time writer, the single transmission frequency time writer of prior art is quite inconvenient.

Therefore the many pen cores pressure sensing type time writer that needs a plurality of transmission frequencies of a kind of tool by switching different pen cores, with the tandem electric inductance value or the capacitance of change time writer, and then changes transmission frequency, solves the shortcoming of above-mentioned prior art.

Summary of the invention

Fundamental purpose of the present invention comprises a plurality of pen cores, a plurality of sensing element, shell, coil and circuit board in that a kind of many pen cores pressure sensing type time writer is provided, and wherein said pen core is covered by in the shell; Coil is wrapped on the shell and is connected to circuit board; Circuit board and sensing element are positioned at the tail end of pen core, and each pen core has nib, magnetic penholder, elastic component and actuating mechanism, but pushing action mechanism and make nib stretch out the front end of shell; In order to writing words on digiboard or drawing; Elastic component is the application of force of buffering nib to digiboard, and utilizes sensing element with the capacitance in the commutation circuit plate, makes the inductance value of coil be connected in series the loop with the capacitance formation of circuit board; Change the transmission frequency of time writer, let many pen cores pressure sensing type time writer have the function that can on display, demonstrate different colours.

Another object of the present invention comprises a plurality of pen cores, shell, coil and circuit board in that a kind of many pen cores pressure sensing type time writer is provided, and wherein said pen core is covered by in the shell; Coil is wrapped on the shell and is connected to circuit board, and circuit board is positioned at the tail end of pen core, and the magnetic penholder of each pen core is constituted by different magnetic materials; Therefore; When the actuating mechanism of pen core made nib expose shell outer through promotion, the magnetic penholder can fall in the magnetic field of coil, makes coil produce the inductance value of equivalence; And different pen cores have different inductance value; Therefore the inductance value of serial connection and the capacitance of circuit board can change the transmission frequency of time writer, and make many pen cores pressure sensing type time writer have the function of different colours.

Description of drawings

Following conjunction with figs. and component symbol are done more detailed explanation to embodiment of the present invention, can implement according to this after studying this instructions carefully so that have the knack of this operator, wherein:

Fig. 1 is the synoptic diagram of many pen cores pressure sensing type time writer of first embodiment of the invention.

Fig. 2 is the synoptic diagram of many pen cores pressure sensing type time writer of second embodiment of the invention.

Embodiment

Consult Fig. 1, the synoptic diagram of many pen cores pressure sensing type time writer of first embodiment of the invention.As shown in Figure 1; Many pen cores pressure sensing type time writer of the present invention comprises a plurality of pen cores (like first pen core 10 and second pen core 20 among the figure), a plurality of sensing element (like first sensing element 31 and second sensing element 32 among the figure), shell 30, coil 40, circuit board 50; Wherein first pen core 10 and second pen core 20 are to be coated in the shell 30; Coil 40 is wrapped on the shell 30 and is connected to circuit board 50, and circuit board 50 is the tail ends that contact first pen core 10 and second pen core 20 respectively with first sensing element 31 and second sensing element 32.

Be noted that; Be convenient explanation characteristic of the present invention; Present embodiment is to be used as exemplary embodiment with two pen cores (that is first pen core 10 and second pen core 20) and two sensing elements (that is first sensing element 31 and second sensing element 32) to do explanation; But be not that therefore in fact, the number of pen core and sensing element can be any positive integer in order to the qualification scope of the invention.

Sensing element can be switch or shell fragment.

First pen core 10 has nib 11, magnetic penholder 13, elastic component 15 and actuating mechanism 17; And second pen core 20 has nib 21, magnetic penholder 23, elastic component 25 and actuating mechanism 27; Wherein nib 11, magnetic penholder 13, elastic component 15 and actuating mechanism 17 are to be combined as a whole, and nib 21, magnetic penholder 23, elastic component 25 and actuating mechanism 27 also are combined as a whole.

When the actuating mechanism 17 of first pen core 10 moves through promotion and toward nib 11 directions; The nib 11 of first pen core 10 can exceed the coating scope of shell 30 and expose; User's many pen cores pressure sensing type time writer of the present invention capable of using is by nib contact number letter stencil (not shown) or let nib be positioned on the position of a certain distance in digiboard top, to carry out writing words or drawing.Elastic component 15 can be coil component spring, cone shaped spring (Conical Coil Spring) or rubber (Rubber); The application of force with 11 pairs of digiboards of buffering nib; Make many pen cores pressure sensing type time writer of the present invention have the pressure-sensitive function; Also can be by the style of writing application of force of nib 11 size, and demonstrate the depth and the thickness of lines.

Because the actuating mechanism that is pushed 17 can break away from first sensing element 31, circuit board 50 to be switching to corresponding capacitance, such as the corresponding electric capacity of a plurality of electric capacity in succession, or changes the area of electric capacity, or changes the cross-pressure of variable capacitance.The mode that is noted that the capacitance of above-mentioned commutation circuit plate 50 is not in order to limiting scope of the present invention, that is the present invention also can use the capacitance of other mode with commutation circuit plate 50.

The inductance value of coil 40 forms with the capacitance of circuit board 50 and is connected in series, and therefore, many pen cores pressure sensing type time writer of the present invention can produce transmission frequency f according to following formula:

$f=1/\left(2\mathrm{\π}\sqrt{\mathrm{LC}}\right)$

Wherein L is the inductance value of coil and C is the capacitance of circuit board.

So; If promote the actuating mechanism 27 of second pen core 20; Then nib 21 can expose shell 30, and actuating mechanism 27 meeting disengagings second sensing element 32, makes circuit board 50 switch to another corresponding capacitance; To change the transmission frequency f of many pen cores pressure sensing type time writer, reach that single time writer has the different transmission frequencies of emission so that on showing, demonstrate the purpose of different colours.

In addition; Shell 30 can form shell thing 33 in front end area; Shell thing 33 can be plastics or metal constitutes, and wherein two ends of shell thing 33 have first convex 35 and second convex 37 respectively, wherein first convex 35 near nib second convex 37 away from nib.Coil 40 is the zones that envelope between first convex 35 and second convex 37, and can further have groove away from second convex 37 of nib, in order to fixed coil 40.

Consult Fig. 2, the synoptic diagram of many pen cores pressure sensing type time writer of second embodiment of the invention.As shown in Figure 2; Many pen cores pressure sensing type time writer of the present invention comprises a plurality of pen cores (like first pen core 70 and second pen core 80 among the figure), shell 30, coil 40, circuit board 50; Wherein first pen core 70 and second pen core 80 are to be coated in the shell 30, and coil 40 is wrapped on the shell 30 and is connected to circuit board 50.First pen core 70 has nib 71, magnetic penholder 73, elastic component 75 and actuating mechanism 77; And second pen core 80 has nib 81, magnetic penholder 83, elastic component 85 and actuating mechanism 87; Wherein nib 71, magnetic penholder 73, elastic component 75 and actuating mechanism 77 are to be combined as a whole; Nib 81, magnetic penholder 83, elastic component 85 and actuating mechanism 87 also are combined as a whole, and magnetic penholder 73 has different magnetic materials with magnetic penholder 83.

With Fig. 1 relatively, second embodiment is except the sensing element that saves first embodiment and the magnetic penholder that uses different magnetic materials, other member is identical with first embodiment of Fig. 1, so identical functions repeats no more.

If promote the actuating mechanism 77 of first pen core 70; Then nib 71 can expose shell 30, and magnetic penholder 73 can fall into the magnetic field of coil 40, makes coil 40 have corresponding inductance value; And this inductance value forms with the capacitance of circuit board 50 and is connected in series, and therefore can produce transmission frequency f.If promote the actuating mechanism 87 of second pen core 80, then magnetic penholder 83 can fall into the magnetic field of coil 40, makes coil 40 have another corresponding inductance value, produces another transmission frequency f.Therefore, can change transmission frequency f, have the function that on display, shows different colours to realize single time writer by the magnetic penholder of different magnetic materials.

Above-described being merely in order to explain preferred embodiment of the present invention; Be not that attempt is done any pro forma restriction to the present invention according to this; Be with, all have in that identical invention spirit is following do relevant any modification of the present invention or change, all must be included in the category that the invention is intended to protect.

Claims (14)

1. A multi-core pressure-sensitive electromagnetic pen is used to generate a transmission frequency, and the multi-core pressure-sensitive electromagnetic pen includes: Multiple refills; A plurality of sensing elements, each sensing element contacts a tail end of the corresponding refill; a circuit board, located at a tail end of the sensing element, and having a plurality of capacitance values; a shell covering the refill, the sensing element and the circuit board; and a coil wound on the casing and connected to the circuit board, and the coil has an inductance; Wherein each pen core of the said pen core has a nib, a magnetic pen holder, an elastic member and an action mechanism, and the nib, the magnetic pen holder, the elastic member and the action mechanism are sequentially combined as one, and the nib faces toward the side of the shell A front end, the magnetic pen holder is made of magnetic material, the action mechanism faces the sensing element, when the action mechanism of one of the pen cores is pushed towards the front end of the housing, the pen tip will expose the The front end of the casing is used to contact a digital board or on the digital board. The elastic member buffers the contact force between the pen tip and the digital board to generate pressure sensing, and the action mechanism will be separated from the sensing element, so that the The circuit board is switched to one of the capacitance values, and the capacitance is connected in series with the inductance of the coil to generate the transmission frequency f, which is expressed as follows: $\mathrm{<span\; class="notranslate">\; f</span>}<span\; class="notranslate">\; =</span>\mathrm{<span\; class="notranslate">\; 1</span>}<span\; class="notranslate">\; /</span><span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; 2</span>}\mathrm{<span\; class="notranslate">\; \&pi;</span>}\sqrt{\mathrm{<span\; class="notranslate">\; LC</span>}}<span\; class="notranslate">\; )</span>$ Where L is the inductance value of the coil and C is the capacitance value of the circuit board; By switching different refills, the inductance value of the coil connected in series or the capacitance value of the capacitor on the circuit of the electromagnetic pen can be changed, thereby changing the transmission frequency. 2. The multi-refill pressure-sensitive electromagnetic pen according to claim 1, wherein the sensing element is a switch or a shrapnel. 3. The multi-refill pressure-sensitive electromagnetic pen according to claim 1, wherein the capacitance of the circuit board is generated by a variable capacitor. 4. The multi-refill pressure-sensitive electromagnetic pen according to claim 1, wherein the capacitance of the circuit board is generated by a plurality of capacitors. 5. The multi-refill pressure-sensitive electromagnetic pen according to claim 1, wherein the elastic member is a circular spring, a conical spring or rubber. 6. The multi-refill pressure-sensitive electromagnetic pen according to claim 1, wherein the shell is made of plastic or metal. 7. The multi-refill pressure-sensitive electromagnetic pen according to claim 1, wherein the housing includes a shell, the shell is close to the front end of the shell, and the shell includes a first protruding shape and a second protrusion, respectively located at the two ends of the shell, the first protrusion is close to the nib and the second protrusion is away from the nib, the coil covers the first protrusion and the pen tip The area between the second protrusions. 8. The multi-refill pressure-sensitive electromagnetic pen according to claim 7, wherein the shell is made of plastic or metal. 9. The multi-refill pressure-sensitive electromagnetic pen according to claim 8, wherein the second protrusion further has a groove for fixing the coil. 10. A multi-core pressure-sensitive electromagnetic pen used to generate a transmission frequency, the multi-core pressure-sensitive electromagnetic pen comprising: Multiple refills; a circuit board, located at a tail end of the pen core, and has a capacitance value; a shell covering the refill and the circuit board; and a coil wound on the housing and connected to the circuit board; Wherein each pen core of the said pen core has a nib, a magnetic pen holder, an elastic member and an action mechanism, and the nib, the magnetic pen holder, the elastic member and the action mechanism are sequentially combined as one, and the nib faces toward the side of the shell A front end, the magnetic pen holder is made of magnetic material, and the magnetic pen holders of different pen cores have different magnetic materials, the action mechanism faces the circuit board, and the action mechanism of a pen core in the pen core is pushed to When facing the front end of the housing, the pen tip will expose the front end of the housing for contacting a digital board or on the digital board, the elastic member buffers the contact force between the pen tip and the digital board to generate pressure-sensitive effect, and the The magnetic pen holder will fall into the magnetic field of the coil, so that the coil has an inductance value, and the inductance of the coil is connected in series with the capacitance of the circuit board to generate the transmission frequency f, which is expressed as follows: $\mathrm{<span\; class="notranslate">\; f</span>}<span\; class="notranslate">\; =</span>\mathrm{<span\; class="notranslate">\; 1</span>}<span\; class="notranslate">\; /</span><span\; class="notranslate">\; (</span>\mathrm{<span\; class="notranslate">\; 2</span>}\mathrm{<span\; class="notranslate">\; \&pi;</span>}\sqrt{\mathrm{<span\; class="notranslate">\; LC</span>}}<span\; class="notranslate">\; )</span>$ Where L is the inductance value of the coil and C is the capacitance value of the circuit board; By switching different refills, the inductance value of the coil connected in series or the capacitance value of the capacitor on the circuit of the electromagnetic pen can be changed, thereby changing the transmission frequency. 11. The multi-refill pressure-sensitive electromagnetic pen according to claim 10, wherein the elastic member is a circular spring, a conical spring or rubber. 12. The multi-refill pressure-sensitive electromagnetic pen according to claim 10, wherein the housing includes a shell, the shell is close to the front end of the shell, and the shell includes a first protrusion and A second protruding shape is respectively located at two ends of the shell, the first protruding shape is close to the nib and the second protruding shape is far away from the nib, the coil wraps the first protruding shape and the pen tip The area between the second bumps. 13. The multi-refill pressure-sensitive electromagnetic pen according to claim 12, wherein the shell is made of plastic or metal. 14. The multi-refill pressure-sensitive electromagnetic pen according to claim 12, wherein the second protrusion further has a groove for fixing the coil.

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