CN201600656U - Electromagnetic hand-writing pen - Google Patents
Electromagnetic hand-writing pen Download PDFInfo
- Publication number
- CN201600656U CN201600656U CN2009202782296U CN200920278229U CN201600656U CN 201600656 U CN201600656 U CN 201600656U CN 2009202782296 U CN2009202782296 U CN 2009202782296U CN 200920278229 U CN200920278229 U CN 200920278229U CN 201600656 U CN201600656 U CN 201600656U
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- magnetic core
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- writing pencil
- coil
- hand
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Abstract
The utility model relates to an electromagnetic hand-writing pen, belonging to the field of peripheral input equipment of a computer. The electromagnetic hand-writing pen comprises a shell, a pen point, an inductor and a resonant circuit board, wherein the pen point is arranged at the front end of the shell; the inductor comprises a magnetic core and a coil, wherein the top end of the magnetic core is provided with an elastomer, and the coil is wound on the magnetic core; and the resonant circuit board is provided with a capacitor and the capacitor is electrically connected with the coil. In the utility model, an eraser washer and a soft magnetic core arranged at the front end of the electromagnetic hand-writing pen in the prior art are omitted, the height from the inductor to the pen point is lowered, a clearance brought by the eraser washer is eliminated, therefore, the accuracy deviation of the hand-writing pen is reduced due to the operation angle, the offsetting, wrong clicking position and the like of the hand-written marks are avoided, and the accuracy performances on hand-writing, drawing, clicking and the like of the electromagnetic hand-writing pen are improved.
Description
Technical field
The utility model belongs to the computer external input equipment field, relates in particular to a kind of electromagnetism writing pencil that is applied to handheld device.
Background technology
The digitalized electron information equipment possesses the function of track input, and the mode of handwriting input is adopted in the realization of this function usually.Electromagnetism writing pencil as the digitalized electron information equipment has obtained using widely, and it not only can also realize drawing, some control operation etc. by the handwriting input literal.
The electromagnetism writing pencil generally includes the electromagnetic induction circuit, signal measurement apparatus on this electromagnetic induction circuit and the supporting antenna plate is responded to, produce and the corresponding electric current of handwriting tracks, thereby handwriting tracks is noted, be converted into and handwriting tracks corresponding character or figure etc. by other equipment such as computer again.
Fig. 2 is the structural representation of prior art electromagnetism writing pencil, in the prior art, comprises housing 1, resonant circuit plate 2, inductance 14, the tip of the brushstyle of a writing or painting 9, rubber washer 11, soft magnet 12, nib 8 in the electromagnetism writing pencil.Resonant circuit plate 2 is arranged in the housing 1, resonant circuit plate 2 is provided with the electromagnetic induction circuit, this electromagnetic induction circuit comprises the electric capacity of some mutual electrical connections, the circuit that these electric capacity are interconnected to form is connected with inductance 14, be provided with soft magnetic core 12 and rubber washer 11 in the bottom of inductance 14, rubber washer 11 specifically is placed between inductance 14 and the soft magnetic core 12, and the nib 8 of entity structure is directly laid in soft magnetic core 12 lower ends.The tip of the brushstyle of a writing or painting 9 is assemblied in the afterbody of housing 1.
In the process that the electromagnetism writing pencil electromagnetism writing pencil of prior art is write on antenna plate 10, nib is stressed, cause elasticity generation deformation by rubber washer 11, the distance of soft magnetic core 12 and inductance 14 is shortened or increase moving with the nib of the effect of being stressed and move, the inductance value that causes regulating inductance 14 changes, thereby the resonance frequency of resonant circuit changes, and judges the handwriting trace of electromagnetism writing pencil with this.
But this electromagnetism writing pencil is when writing, painting or putting operation such as control, and existence is greater than the deviation of 1mm between the position of the position of nib and antenna plate actual contact and antenna plate induction.Along with electromagnetism writing pencil angle of inclination increases, the corresponding increase of the amplitude of this deviation.
The electromagnetic induction curve of the diverse location when Fig. 3 spends for prior art electromagnetism writing pencil 90.The physical location of X coordinate representation nib directions X on antenna plate, unit are millimeter, the induction current intensity that the inductive coil in the Y coordinate representation antenna plate is measured at diverse location, and unit is a milliampere mA.The position of nib Contact antenna plate is " 0 " position of coordinate.Measuring criterion that electromagnetism writing pencil coordinate adopts and be the position of getting induction current intensity maximum is the coordinate of electromagnetism writing pencil on antenna plate.When electromagnetism writing pencil during perpendicular to antenna plate, the position consistency that measures of nib actual contact position and antenna plate, as can be seen from the figure, the position and the position contacting that measure overlap substantially, i.e. " 0 " position.
The electromagnetic induction curve of the diverse location when Fig. 4 spends for prior art electromagnetism writing pencil inclination 60.The position of strength of current maximal value about 1.5mm that inductive coil in the antenna plate is sensed, according to the strongest position of induction current is exactly the judgment criterion of the measuring position of electromagnetism writing pencil, that is to say the nib that measures at actual nib contact position toward vergence direction about inclined to one side 1.5mm.Cause the main cause of this deviation to be: have the slit of rubber washer between inductance and the soft magnetic core, the most of energy of electromagnetic wave spreads out from the slit, through the just energy of small part of soft magnetic core; In addition, soft magnetic core is far away apart from antenna plate.
The utility model content
Technical problem to be solved in the utility model is to provide a kind of electromagnetism writing pencil, there is deviation between the position in order to the position that overcomes electromagnetism writing pencil nib and antenna plate actual contact in the prior art and antenna plate induction greater than 1mm, avoid handwriting to be offset, figure loses shape, click location mistake etc., improves writing, paint and precision such as click of electromagnetism writing pencil.
For solving the problems of the technologies described above, the utility model provides a kind of electromagnetism writing pencil, and this electromagnetism writing pencil comprises: housing; Nib, described nib is arranged on the front end of described housing; Inductance, described inductance comprise that the top is provided with the magnetic core and the coil that is wound on the described magnetic core of flexible member; The resonant circuit plate, described resonant circuit plate is provided with electric capacity, and described electric capacity is electrically connected with described coil.
Preferably, described flexible member is a spring.
Preferably, described electromagnetism writing pencil also comprises plastic cement pipe and support, and described magnetic core and described spring are contained in the described plastic cement pipe in proper order; Described coil is wound on the described magnetic core by described plastic cement pipe, and described magnetic core is moving in described plastic cement pipe under the effect of described spring and described nib; Described support is located at described plastic cement pipe top, is used for fixing described plastic cement pipe and described resonant circuit plate.
Preferably, on the basis of such scheme, the diameter that described nib exposes the outer part of described housing is 1.0mm～2.0mm, described nib exposes the outer part of described housing and highly is 1.5mm～2.0mm, the front end of described magnetic core is 2.5mm～3.5mm apart from the tip of described nib, and the diameter of described magnetic core is 1.6mm～3mm.
In the utility model, the rubber washer and the soft magnetic core of electromagnetism writing pencil front end of the prior art have been reduced, change the relative position of magnetic core and coil by spring stress deformation, the electromagnetic wave of different frequency directly emits from inductance, so just eliminate the gap that rubber washer causes, reduced the height of inductance.When the electromagnetism writing pencil writing, painting and operating process such as click in, central point through the electromagnetic wave compact district that inductance emits overlaps with the actual contact position of nib on antenna plate, make deviation between the position of actual contact position and induction trickle even eliminate, improved writing, paint and precision such as click of electromagnetism writing pencil.
Description of drawings
Fig. 1 is the structural representation of the utility model electromagnetism writing pencil embodiment;
Fig. 2 is the structural representation of prior art electromagnetism writing pencil;
The electromagnetic induction curve of the diverse location when Fig. 3 spends for prior art electromagnetism writing pencil 90;
The electromagnetic induction curve of the diverse location when Fig. 4 spends for prior art electromagnetism writing pencil inclination 60;
Fig. 5 A and Fig. 5 B are respectively before the pressurized of the utility model electromagnetism writing pencil embodiment and the constitutional diagram behind the pressurized;
Fig. 6 is the pressurized process inductance variation diagram of the utility model electromagnetism writing pencil embodiment;
The electromagnetic induction curve of the diverse location when Fig. 7 spends for the utility model electromagnetism writing pencil inclination 60.
Embodiment
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Fig. 1 is the structural representation of the utility model electromagnetism writing pencil embodiment.As shown in Figure 1, the electromagnetism writing pencil in the present embodiment technical scheme comprises: housing 1, resonant circuit plate 2, the inductance that comprises coil 3 and magnetic core 4, flexible member, nib 8 and the tip of the brushstyle of a writing or painting 9.Nib 8 is arranged on the front end of housing 1, exposes housing, is used for writing on antenna plate 10.The tip of the brushstyle of a writing or painting 9 is positioned at the afterbody of housing 1, is used for firm placement resonant circuit plate 2 etc.
Be provided with resonant circuit plate 2 in the housing 1.Be welded with some electric capacity on the resonant circuit plate 2, linking to each other with coil 3 in the inductance forms resonant circuit.
In the present embodiment, the electromagnetism writing pencil can also plastic cement pipe 5 and support 7.
In the present embodiment, can be spring 6 as the flexible member that changes the inductance size according to moving of magnetic core.These spring 6 one ends are fixing by support 7, and the other end directly contacts with an end of magnetic core 4, and deformation takes place along with moving of magnetic core 4.The other end of magnetic core 4 directly contacts with nib 8.In the time of electromagnetism writing pencil input trajectory, the nib 8 stressed magnetic cores 4 that cause are subjected to displacement, and make spring 6 that deformation take place, and like this, make the value of the inductance that coil 3 and magnetic core 4 constitute change, thereby change resonance frequency.
Fig. 5 A and Fig. 5 B are respectively before the pressurized of the utility model electromagnetism writing pencil embodiment and the constitutional diagram behind the pressurized.When antenna plate 10 was write, shown in Fig. 5 A, state A was the state of electromagnetism writing pencil front end when not having pressurized, and when not having pressurized, the spring 6 that is fixed on the support 7 is state of nature, and it is more that the part of coil 3 is promptly exposed in magnetic core 4 bottoms.Shown in Fig. 5 B, the state when state B is electromagnetism writing pencil front end pressurized; During pressurized, after housing 1 is subjected to the pressure of user's hand, be transmitted to nib 8, nib 8 is transported to magnetic core 4 with pressure, and magnetic core 4 is pushed spring 6 in plastic cement pipe 5 pipelines, and spring 6 is compressed, the length of magnetic core 4 in coil 3 is elongated simultaneously, the state B when promptly entering pressurized; After pressure discharged, because the elastic force of spring 6, magnetic core 4 and nib 8 were got back to the state when not having pressure.
Fig. 6 is the pressurized process inductance variation diagram of the utility model electromagnetism writing pencil embodiment.As shown in Figure 6, when spring was under pressure, because the magnetic core increase of length in coil, the inductance value of inductance increased and progressively increases with the length of magnetic core in coil; When the pressure that nib is subjected to was maximum, the length of magnetic core in coil was the longest, thus the inductance value maximum of inductance.When spring was not stressed, the length of magnetic core in coil was the shortest, so the inductance value minimum of inductance; Enter the pressured state shown in the constitutional diagram 5B after being under pressure.
In the foregoing description, the diameter that nib exposes the outer part of housing is 1.0mm, and nib exposes the outer part of housing and highly is 1.2mm, and the bottom of magnetic core is apart from the most advanced and sophisticated 2mm of nib, and the diameter of magnetic core is 2.0mm.
The electromagnetic induction curve of the diverse location when Fig. 7 spends for the utility model electromagnetism writing pencil inclination 60.As shown in Figure 7, the physical location of X coordinate representation nib directions X on antenna plate, unit are millimeter, the inductive coil strength of current that Y coordinate representation antenna plate is measured at diverse location, unit is a milliampere mA, and the position of nib Contact antenna plate is " 0 " position of coordinate.The strength of current maximal value that the antenna plate inductive coil is sensed is about 0mm, and the pen tip position of the electromagnetism writing pencil that antenna plate is measured that is to say that the pen tip position that antenna plate measures is trickle with the position deviation of nib actual contact about 0mm, even elimination.
In the foregoing description,, so just eliminated the gap that rubber washer causes in the prior art, reduced the height of inductance by the relative position of spring stress deformation change magnetic core and coil.When the electromagnetism writing pencil is being write, in the operating process such as drawing and click, central point through the electromagnetic wave compact district that inductance emits overlaps with the actual contact position of nib on antenna plate, make deviation between the position of actual contact position and induction trickle even eliminate, overcome between the position of the position of electromagnetism writing pencil nib and antenna plate actual contact in the prior art and antenna plate induction and had bigger deviation, and cause that person's handwriting is offset when hand-written, figure loses shape, defectives such as click location mistake have improved writing of electromagnetism writing pencil, precision such as drawing and click.
Claims (4)
1. an electromagnetism writing pencil is characterized in that, comprising:
Housing;
Nib, described nib is arranged on the front end of described housing;
Inductance, described inductance comprises: the top is provided with the magnetic core and the coil that is wound on the described magnetic core of flexible member;
The resonant circuit plate, described resonant circuit plate is provided with electric capacity, and described electric capacity is electrically connected with described coil.
2. electromagnetism writing pencil according to claim 1 is characterized in that: described flexible member is a spring.
3. electromagnetism writing pencil according to claim 2 is characterized in that: also comprise plastic cement pipe and the support that is used for fixing described plastic cement pipe and described resonant circuit plate, described magnetic core and described spring are contained in the described plastic cement pipe in proper order; Described coil is wound on the described magnetic core by described plastic cement pipe; Described support is located at described plastic cement pipe top.
4. according to any described electromagnetism writing pencil in the claim 1 to 3, it is characterized in that: the diameter that described nib exposes the outer part of described housing is 1.0mm～2.0mm, described nib exposes the outer part of described housing and highly is 1.5mm～2.0mm, the front end of described magnetic core is 2.5mm～3.5mm apart from the tip of described nib, and the diameter of described magnetic core is 1.6mm～3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202782296U CN201600656U (en) | 2009-12-21 | 2009-12-21 | Electromagnetic hand-writing pen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202782296U CN201600656U (en) | 2009-12-21 | 2009-12-21 | Electromagnetic hand-writing pen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201600656U true CN201600656U (en) | 2010-10-06 |
Family
ID=42811719
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202782296U Ceased CN201600656U (en) | 2009-12-21 | 2009-12-21 | Electromagnetic hand-writing pen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201600656U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102064381A (en) * | 2010-11-23 | 2011-05-18 | 汉王科技股份有限公司 | Induction antenna, electromagnetic handwriting device and antenna plate thereof |
| CN103809803A (en) * | 2012-11-13 | 2014-05-21 | 乐金显示有限公司 | Input system |
| CN106843544A (en) * | 2017-01-22 | 2017-06-13 | 深圳市绘王动漫科技有限公司 | The pressure sensitivity signal processing system of source-free hand-writing pen, method and hand drawing board |
-
2009
- 2009-12-21 CN CN2009202782296U patent/CN201600656U/en not_active Ceased
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102064381A (en) * | 2010-11-23 | 2011-05-18 | 汉王科技股份有限公司 | Induction antenna, electromagnetic handwriting device and antenna plate thereof |
| CN102064381B (en) * | 2010-11-23 | 2013-03-13 | 汉王科技股份有限公司 | Induction antenna, electromagnetic handwriting device and antenna plate thereof |
| CN103809803A (en) * | 2012-11-13 | 2014-05-21 | 乐金显示有限公司 | Input system |
| CN103809803B (en) * | 2012-11-13 | 2016-12-28 | 乐金显示有限公司 | Input system |
| CN106843544A (en) * | 2017-01-22 | 2017-06-13 | 深圳市绘王动漫科技有限公司 | The pressure sensitivity signal processing system of source-free hand-writing pen, method and hand drawing board |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C35 | Partial or whole invalidation of patent or utility model | ||
| IW01 | Full invalidation of patent right |
Decision date of declaring invalidation: 20160429 Decision number of declaring invalidation: 28895 Granted publication date: 20101006 |