CN209216054U - A kind of intelligent handwriting device of optional intelligent terminal - Google Patents

Abstract

The utility model discloses a kind of intelligent handwriting devices of optional intelligent terminal.It include an electromagnetic screen, time writer, display interface on intelligent terminal is synchronized to carried out on electromagnetic screen display and by the first data communication interface that inductive signal caused by electromagnetic screen is fed back on intelligent terminal, the display interface on intelligent terminal is synchronized to the second data communication interface shown on electromagnetic screen and inductive signal caused by electromagnetic screen is fed back to the third data communication interface on intelligent terminal.The one-way data transfer function that the utility model is respectively provided with based on two-wire data transfer function possessed by the first data communication interface and the second data communication interface and third data communication interface, by the type for enriching the data-interface of electromagnetic screen, it can not only make the different types of intelligent terminal such as itself and smart phone, tablet computer, computer carry out selection pairing to use, its scope of application and usage scenario are extended, and the portable mobile performance for enhancing handwriting device creates condition.

Description

A kind of intelligent handwriting device of optional intelligent terminal

Technical field

The utility model relates to technical field of electronic products, the intelligent handwriting of especially a kind of optional intelligent terminal is filled It sets.

Background technique

With being constantly progressive for science and technology, the studying and living of people also progresses into intellectualization times, is usually led The handwriting input device that be used as painting creation also has been rapidly developed and applied；Currently, existing handwriting input device Mainly by being attached with computer terminal, to function similarly to the effect of mouse or keyboard, to complete such as The functions such as text writing, drawing.

However, existing handwriting equipment generally existing following defect: 1, usage mode is single, existing handwriting equipment one As matching use can only be carried out with computer terminal (that is: PC machine), smart phone, tablet computer etc. can not be compatible with just Formula mobile device is taken, to significantly limit its application scenarios and the scope of application；2, utility function is single, existing hand-written to set It is standby to come to use as the signal pickup assembly of handwriting tracks after being attached with computer terminal, past contact Operator is needed to watch computer screen in real time to confirm handwriting tracks, in this way, due to the hand motion and eye of operator Portion's movement is to be scattered in computer terminal and handwriting equipment sheet respectively, to increase the operation such as writing, drawing Difficulty；3, portable mobile is poor, and existing handwriting equipment mostly can only be in the fixed-site for being provided with computer terminal It carries out using being not easy to operator and the work such as write, paint whenever and wherever possible；4, performance it is unstable, in the process used In be easy to happen electromagnetic interference, and then lead to write that not smooth, recognition speed is slow, user experience effect is poor.

Utility model content

In view of the deficiency of the prior art, the purpose of this utility model is to provide a kind of optional intelligent terminals Intelligent handwriting device.

To achieve the goals above, the utility model adopts the following technical solution:

A kind of intelligent handwriting device of optional intelligent terminal, it includes an electromagnetic screen, by generating electromagnetic wave right Electromagnetic screen make to make when tactile depressing action electromagnetic screen generate the time writer of inductive signal, be installed on electromagnetic screen with by with intelligent terminal It is connected for display interface on intelligent terminal to be synchronized on electromagnetic screen and show and feed back inductive signal caused by electromagnetic screen The first data communication interface on to intelligent terminal is installed on electromagnetic screen by the way that be connected with intelligent terminal will be on intelligent terminal Display interface be synchronized to the second data communication interface shown on electromagnetic screen and be installed on electromagnetic screen with by with The connected third data communication interface fed back to inductive signal caused by electromagnetic screen on intelligent terminal of intelligent terminal.

Preferably, the electromagnetic screen includes that a screen driving plate, one and screen driving plate are electrically connected with simultaneous display intelligence Can terminal display interface display screen and one be distributed and be electrically connected with screen driving plate in electricity in stacked with display screen Magnetic pen generates the antenna plate of inductive signal when making tactile depressing action to display screen, first data communication interface, the second data are logical Letter interface and third data communication interface are connected with screen driving plate respectively, and the screen driving plate is connect by the first data communication Mouth or third data communication interface feed back to inductive signal caused by antenna plate on intelligent terminal.

Preferably, first data communication interface and third data communication interface are USB Type-C interface, described Second data communication interface is HDMI interface.

Preferably, the electromagnetic screen further include one be controlled by screen driving plate and respectively with screen driving plate, antenna plate and The connected energy-storage battery of display screen.

Preferably, the time writer includes handwriting, is packaged in the intracorporal handwriting battery of pen and oscillating circuit board, is placed in handwriting Bottom end in metal pipe sleeve, be wound on the periphery wall of metal pipe sleeve and be electrically connected by oscillating circuit board and handwriting battery Induction coil, by the bottom nozzle sleeve of handwriting in pressing nib and be installed in metal pipe sleeve and touching in metal pipe sleeve It presses and makees the mobile iron powder stem in position under the promotion of nib in metal pipe sleeve；The induction coil is defeated in reception oscillating circuit board Out by pressing nib output electromagnetic wave after oscillator signal.

Preferably, also it is used to make to contradict with oscillating circuit board connection embedded at least one on the peripheral wall of the handwriting to adjust Save the modifier key of the signal output frequency of oscillating circuit board；And counter is integrated on the oscillating circuit board.

Preferably, the antenna plate includes that substrate and several are arranged in substrate in a manner of criss-cross each other Induction antenna is integrated with central processing unit in the screen driving plate and is connected to the outlet of central processing unit and induction antenna Make the signal amplification module of enhanced processing between end with the current signal of the sensed antenna of convection current, several induction antennas Destination terminal is grounded simultaneously, and first data communication interface, the second data communication interface and third data communication interface difference It is connected with central processing unit.

Preferably, the substrate includes upper cover plate, antenna overlay film and the lower cover plate of from top to bottom sequence and parallelly distribute on；Institute It states induction antenna to be arranged on antenna overlay film, the display screen is in contact on upper cover plate and with induction antenna.

Preferably, the lower cover plate is made of one of tinplate, galvanized iron, ferroaluminium material, the upper cover plate It is made of nonmetallic materials.

Preferably, the signal amplification module includes that preceding stage power amplifier, secondary power amplifier, intergrade power are put Big device, final power amplifier and negative pressure signal generation circuit；

The inverting input terminal of the preceding stage power amplifier connects sense with first capacitor by the first resistor of sequential concatenation It answers the leading-out terminal of antenna and output end is connected by second resistance, non-inverting input terminal is grounded and passes through 3rd resistor and is connected to first Between resistance and first capacitor, output end pass through the second capacitor of sequential concatenation and third capacitance connection secondary power amplifier Inverting input terminal；

4th resistance of the inverting input terminal sequential concatenation of the secondary power amplifier and the 4th capacitance connection are in second Output end is connected between capacitor and third capacitor and by the 4th resistance, non-inverting input terminal is grounded and passes through the 5th resistance and is connected to Between second capacitor and third capacitor, output end connects intergrade power by the 6th resistance of sequential concatenation and the 7th resistance and puts The inverting input terminal of big device；

The inverting input terminal of the intermediate stage power amplifier passes through the 8th resistance and the 5th capacitance connection in parallel each other In output end, non-inverting input terminal be grounded and pass through the 6th capacitance connection between the 6th resistance and the 7th resistance, output end passes through The non-inverting input terminal of 7th capacitance connection final power amplifier；

The reverse inter-input-ing ending grounding of the final power amplifier and the 9th resistance and the tenth resistance for passing through sequential concatenation It connects non-inverting input terminal output end and inverting input terminal is connected by eleventh resistor；

The negative pressure signal generation circuit includes phase inverter, first switch diode and second switch diode, described anti- It is same by the first storage capacitor that the input terminal of phase device connects the output end of final power amplifier, output end by twelfth resistor When connection first switch diode cathode and second switch diode anode, the second switch diode cathode ground connection And the signal input part of synchronous transfer mode is connected, the anode of the first switch diode passes through in the connection of the second storage capacitor The signal input part of central processor and the thirteenth resistor and the 8th capacity earth for passing through sequential series.

As the above scheme is adopted, the utility model, not only can be with by enriching the type of the data-interface of electromagnetic screen Make handwriting device that can carry out selectivity with different types of intelligent terminal and combine pairing use, extends the scope of application of handwriting equipment And usage scenario user, as connected such as intelligent hand using bidirectional data transmission function possessed by the first data communication interface Machine, tablet computer or computer with bidirectional data transfers interface etc., and utilize the second data communication interface and third number The one-way data transfer function being respectively provided with according to communication interface can then meet tradition and not have two-wire data coffret The use demand of terminal；Meanwhile it also being created condition to enhance the portable mobile performance of handwriting device.

Detailed description of the invention

Fig. 1 is the principle topological diagram of the utility model embodiment；

Fig. 2 is the operating principle schematic diagram of the utility model embodiment；

Fig. 3 is the structural decomposition diagram of the electromagnetic screen of the utility model embodiment；

Fig. 4 is the cross section structure schematic diagram of the time writer of the utility model embodiment；

Fig. 5 is the circuit structure of the signal amplification module of the utility model embodiment with reference to figure (one)；

Fig. 6 is the circuit structure of the signal amplification module of the utility model embodiment with reference to figure (two).

Specific embodiment

The embodiments of the present invention are described in detail below in conjunction with attached drawing, but the utility model can be by right It is required that the multitude of different ways for limiting and covering is implemented.

As shown in Figures 1 to 6, the intelligent handwriting device of a kind of optional intelligent terminal provided in this embodiment, it includes:

Electromagnetic screen A is mainly used for intelligent terminal B (such as terminal, intelligent mobile phone terminal, tablet computer terminal Etc.) on display interface (such as write, draw software operation interface) make simultaneous display and for operator on it The operation such as write, drawn；

Time writer D mainly generates induced magnetic field on electromagnetic screen A using its generated electromagnetic wave, it may be assumed that work as operator Member makees tactile depressing action (that is: carrying out tactile depressing action according to the track of the operations such as writing or drawing) to electromagnetic screen B in hand-held time writer D When, electromagnetic screen B can be made to generate corresponding electromagnetic induction signal；

First data communication interface E is installed in data connecting line and intelligent terminal on electromagnetic screen A to match by it After A establishes a connection, display interface on intelligent terminal B is synchronized on electromagnetic screen A carry out display and will be produced by electromagnetic screen A Inductive signal feed back on intelligent terminal B (that is: the first data communication interface E have bidirectional data transmission function)；Wherein, One data communication interface E is preferably USB Type-C interface, to realize the data interaction between intelligent terminal B and electromagnetic screen A, this When, intelligent terminal B can be used whole with terminal, the smart phone with the first data communication interface E identical standard interface End, tablet computer terminal etc.；

Second data communication interface F and third data communication interface G, the two are assembled on electromagnetic screen A, and the second data are logical After letter interface F is connected by its data connecting line to match with intelligent terminal B, it is mainly used for display circle on intelligent terminal B Face is synchronized on electromagnetic screen A and is shown；And third data communication interface G is then the data connecting line to be matched by it and intelligence After terminal B is connected, it is mainly used for feeding back to inductive signal caused by electromagnetic screen A intelligent terminal B on that (that is: the second data are led to Letter interface F and third data communication interface G only has the function of one-way data transfer)；Wherein, the second data communication interface F is excellent USB Type-C interface or other USB interfaces are selected as, third data communication interface G is preferably HDMI interface, and intelligence at this time Terminal B is then traditional terminal.

Handwriting device and different type that user will can be made of time writer D and electromagnetic screen A according to the actual situation as a result, Intelligent terminal B carry out selectivity combination pairing and use, it may be assumed that passed using bi-directional data possessed by the first data communication interface E Transmission function connects the intelligent terminals B such as smart phone, tablet computer or computer with bidirectional data transfers interface； And can then it be expired using the one-way data transfer function that the second data communication interface F and third data communication interface G are respectively provided with The use demand of foot tradition and the terminal without two-wire data coffret.Based on this, by enriching electromagnetic screen A's The type of data-interface can not only make entire handwriting device and different types of intelligent terminal carry out pairing use, extend hand The scope of application and usage scenario of write device, and the portable mobile performance for enhancing handwriting device creates condition.

It (especially solves existing handwriting device to need to calculate to enable entire handwriting device not limited by the position of power supply The problem of machine is powered), thus the problems such as enhancing its Mobile portable and the flexibility used, the electromagnetic screen A of the present embodiment It further include a storage for being controlled by screen driving plate a10 and being connected respectively with screen driving plate a10, antenna plate a30 and display screen a20 It can battery a40.It can guarantee that handwriting device has integrated and independent power source using energy-storage battery a40 as a result, meanwhile, When being attached using the intelligent terminals A such as the first data communication interface E and smart phone, tablet computer, can also be used The characteristic of one data communication interface E itself provides electricity for aforementioned intelligent terminal A.

The practical performance of the entire handwriting device of horn of plenty, especially solution user is because when the work such as writing, drawing Need to combine the problem of handwriting device itself leads to user's distraction with intelligent terminal B, the electromagnetic screen A of the present embodiment It is electrically connected including a screen driving plate a10, one and screen driving plate a10 with the display interface of simultaneous display intelligent terminal B Display screen a20 (it can use liquid crystal display according to the actual situation) and one and display screen a20 drives in stacked distribution and with screen Plate a10 is electrically connected to generate the antenna plate a30 of inductive signal when time writer D makees tactile depressing action to display screen a20；Wherein, First data communication interface E, the second data communication interface F and third data communication interface G respectively with screen driving plate a10 phase Even, screen driving plate a10 passes through the first data communication interface E or third data communication interface G for sense caused by antenna plate a30 Induction signal is fed back on intelligent terminal A.In this way, the display screen a20 by setting can be synchronous by the display interface on intelligent terminal A Be presented on handwriting device, when user hold time writer D display screen a20 (region i.e. where display interface) is write or When drawing presses operation, electromagnetic wave caused by time writer D can make antenna plate a30 generate induced electricity due to by magnetic field intercepts Stream, and each inductive signal can be corresponding with the coordinate for pressing position of time writer D, and then signal is being fed back to intelligent end While holding B, synchronizes and be presented on display interface shown by display screen a20, in order to which user's direct viewing display screen a20 is Writing or drawing locus can be confirmed, to be conducive to reduce the difficulty write or drawn.

Preferably, the antenna plate a30 of the present embodiment includes substrate 10 and several each other with criss-cross Mode is arranged in the induction antenna 20 in substrate 10, and central processing unit 110 and connection are then integrated on screen driving plate a10 To make to amplify to the current signal for flowing through induction antenna 20 between central processing unit 110 and the leading-out terminal of induction antenna 20 The signal amplification module 120 of processing；Wherein, the destination terminal of several induction antennas 20 is grounded simultaneously, and the first data communication connects Mouth E, the second data communication interface F and third data communication interface G are then connected with central processing unit 110 respectively.Pass through number as a result, After electromagnetic screen A and intelligent terminal B are established signal connection relationship according to communication interface, user can be by time writer D in display screen When carrying out writing drawing on a20, emit a fixed magnetic confining field (as shown in Fig. 2, with the work of transformer using time writer D For making principle, time writer D that is, transformer primary side, electromagnetic screen A that is, transformer secondary side, and air Then be equivalent to the silicon steel sheet of transformer), when time writer D is close to electromagnetic screen A, induction antenna 20 be subject to the cutting in magnetic field and Generating electric current, (induction antenna of the independent horizontal or vertical distribution of each all can be considered the single and independent secondary of transformer Side), electric current can obtain signal strength by the amplification of signal amplification module 120, and signal and combination based on varying strength Corresponding mathematical algorithm can obtain the coordinate of the pressed position time writer D, and then utilize data communication interface by coordinate information Intelligent terminal B is sent to, to realize that the trajectory synchronization that presses by time writer A shows and is in intelligent terminal B and display screen a20 On existing display interface.

Effective cutting for time writer D to induction antenna 20, so that corresponding induced current is generated, every induction antenna 20 Width be preferably between 0.5mm between 2mm to avoid induction antenna 20 influence for its configured selection switch input hinder Anti- matching, and the spacing between adjacent two induction antennas 20 is then preferably ranged between 0.25 inch to 0.5 inch, thus Improve the precision calculated the coordinate that time writer presses position.In addition, when induction antenna 20 is specifically arranged, it can be under State cabling mode to arrange to induction antenna 20: 1, the maximal end point of all induction antennas 20 is connected to identical ground terminal, and connects Copper foil width at ground terminal is more preferably greater than 1.0mm；2, the leading-out terminal of all induction antennas 20 preferably amplifies mould as close as possible to signal Block 120 constitutes circuit to avoid with ground terminal, it may be necessary to the copper foil of large area to writing workspace (on display screen a20 And region corresponding with antenna plate a30) enclosing masking is carried out, to reduce the signal interference outside nonclient area.As further Preferred embodiment, several induction antennas 20 of the present embodiment are in the same plane in substrate 10, and every induction antenna 20 projection of shape on the substrate 10 is the rectangle that length-width ratio is not less than 2.

For the structure for optimizing entire electromagnetic screen A to the maximum extent, as shown in figure 3, the substrate 10 of the present embodiment includes by upper To the upper cover plate 12 of lower sequence and parallelly distribute on, antenna overlay film 13 and lower cover plate 14, wherein induction antenna 20 is arranged in antenna and covers On film 13, display screen a20 is in contact on upper cover plate 12 and with induction antenna 20, and central processing unit 110 and signal are put It is integrated on screen driving plate a10 if big module 120 and other electronic components (such as operation IC etc.).Time writer D as a result, When pressing display screen a20, generated electromagnetic wave (or magnetic field) can be cut induction antenna 20 in induction day Sensor current signal is generated on line 20, and then determines time writer D to display screen by the series of processes to sensor current signal A20's presses position, with finally simultaneous display time writer D presses track on intelligent terminal B and display screen a20, to complete Writing or drawing performance.

In order to avoid whole equipment carried out on the carriers such as the desktop of irony in use, iron table (magnetic field intercepts arrive The magnetic line of force can be destroyed when induction antenna 20) influence electromagnetic screen A linear and function, the production material of the lower cover plate 14 of the present embodiment Material is preferably one of tinplate, galvanized iron, ferroaluminium；Certainly, it is pointed out that: use the lower cover plate of unlike material 14, the amplification factor of current signal difference can be made, so according to actual needs, other materials can also be used；In addition, this The upper cover plate 12 of embodiment is made preferably with nonmetallic materials such as plastic cement, to further decrease signal interference, improves dress The anti-interference ability set.

To guarantee signal amplification module 120 to the enhanced processing effect of sensor current signal, as shown in figure 5, the present embodiment Signal amplification module 120 include preceding stage power amplifier A1, secondary power amplifier A2, intermediate stage power amplifier A3, end Stage power amplifier A4 and negative pressure signal generation circuit；Wherein, above-mentioned power amplifier can be according to the actual situation using such as TL084 type power amplifier；The inverting input terminal of preceding stage power amplifier A1 passes through the first resistor R1 and first capacitor C1 of sequential concatenation It connects the leading-out terminal of induction antenna 20 and is grounded by second resistance R2 connection output end, non-inverting input terminal and passes through 3rd resistor R3 is connected between first resistor R1 and first capacitor C1, output end passes through the second capacitor C2 and third capacitor C3 of sequential concatenation Connect the inverting input terminal of secondary power amplifier A2；4th electricity of the inverting input terminal sequential concatenation of secondary power amplifier A2 Resistance R4 and the 4th capacitor C4 be connected between the second capacitor C2 and third capacitor C3 and by the 4th resistance R4 connection output end, together Phase input end grounding and be connected between the second capacitor C2 and third capacitor C3 by the 5th resistance R5, output end by sequence go here and there The inverting input terminal of the 6th resistance R6 and the intermediate stage power amplifier A3 of the 7th resistance R7 connection that connect；Intermediate stage power amplifier The inverting input terminal of A3 is connected to output end by the 8th resistance R8 and the 5th capacitor C5 in parallel each other, non-inverting input terminal is grounded And be connected between the 6th resistance R6 and the 7th resistance R7 by the 6th capacitor C6, output end is by the 7th capacitor C7 connection final stage The non-inverting input terminal of power amplifier A4；The reverse inter-input-ing ending grounding of final power amplifier A4 simultaneously passes through the 9th of sequential concatenation Resistance R9 and the tenth resistance R10 connection non-inverting input terminal, output end pass through eleventh resistor R11 connection inverting input terminal；

Negative pressure signal generation circuit includes phase inverter U (it can use 74HC04 type NOT gate according to the actual situation), first opens The input terminal for closing diode D1 and second switch diode D2, phase inverter U is amplified by twelfth resistor R12 connection final power Output end, the output end of device A4 connects the cathode of first switch diode D1 and second simultaneously by the first storage capacitor Cc1 and opens The anode of diode D2 is closed, the cathode of second switch diode D2 is grounded and connects the signal input part of central processing unit 110, the The anode of one switching diode D1 passes through the signal input part of the second storage capacitor Cc2 connection synchronous transfer mode and passes through sequence Concatenated thirteenth resistor R13 and the 8th capacitor C8 ground connection.

As a result, using preceding stage power amplifier A1, secondary power amplifier A2 and intermediate stage power amplifier A3 conduct Inverting amplifier come using, using final power amplifier A4 as non-inverting amplifier come using；When barotropic wave signal passes through instead Phase device U can charge to the first storage capacitor Cc1 when exporting, so that negative pressure signal generation circuit is made to export positive pressure signal, When signal is 0, the first storage capacitor Cc1 can charge to the second storage capacitor Cc2 by first switch diode D1, To make negative pressure signal generation circuit export negative pressure signal；It is to calculate or judge by the acquisition to positive/negative-pressure signal based on this The track that presses of time writer D provides signal support；In the process, electricity is used as using using energy-storage battery a40 above-mentioned The independent current source of magnetic cup A comes using to enhance the flexibility that electromagnetic screen A is used.It certainly, is reduction to the consumption of energy-storage battery a40 The main body of electricity, the signal amplification module 120 of the present embodiment can also be by negative pressure signal generation circuit and transistor as shown in FIG. 6 Amplifying circuit collectively constitutes.

For the structure for optimizing entire time writer, as shown in figure 4, the time writer of the present embodiment includes handwriting 30, is packaged in pen Handwriting battery 40 and oscillating circuit board 50 in body 30, are wound in metal at the metal pipe sleeve 60 being placed in the bottom end of handwriting 30 The induction coil 70 that is electrically connected on the periphery wall of pipe sleeve 60 by oscillating circuit board 50 and handwriting battery 40, by the bottom of handwriting 30 Port sleeve is in pressing nib 80 and be installed in metal pipe sleeve 60 and in the promotion for pressing nib 80 in metal pipe sleeve 60 Under make the mobile iron powder stem 90 in position in metal pipe sleeve 60；Wherein, induction coil 70 is receiving the output of oscillating circuit board 50 Electromagnetic wave is exported by pressing nib 80 after oscillator signal.Based on this, using handwriting battery 40 as the power supply of entire time writer, After oscillating circuit board 50 powers on i.e. capable of emitting oscillator signal and by induction coil 70 press nib 80 on establish one The magnetic field of a fixation；When pressing nib 80 when pressing electromagnetic screen A, presses nib 80 and push iron powder stem 90 because being under pressure Position movement is carried out in metal pipe sleeve 60, so that the frequency for changing fixed magnetic field (that is: it is bigger to press written 80 stress, iron powder Moving range of the stem in metal pipe sleeve 60 is bigger, and correspondingly, the frequency variation of fixed magnetic field is bigger), and then pass through The magnetic field of different frequency generates the current signal of varying strength to the cutting of electromagnetic screen B (specially antenna plate a30), to complete It is subsequent that track is identified and positioned as calculating.

For the performance for advanced optimizing entire time writer, also it is used for and vibration embedded at least one on the peripheral wall of handwriting 30 Circuit board 50 is swung to make to contradict modifier key 100 of the connection to adjust the signal output frequency of oscillating circuit board 50；It is vibrating simultaneously Counter (not shown) is integrated on circuit board 50.It, can as a result, by the setting of the circuit structure to oscillating circuit board 50 The adjusting control button exported using modifier key 100 as vibration signal after it is pressed come using to realize different frequencies The output of the oscillator signal of rate, thus induction coil 70, press nib 80 and iron powder stem 90 cooperation under realize to electromagnetism The regulation in wave or magnetic field；And using counter then can real-time detection press nib and 80 whether act, if pressing in the given time Nib 80 does not click movement, and i.e. can refer to this signal enters suspend mode to entire time writer, to reach the effect for saving electric energy Fruit.

To guarantee magnetic field induction effect between iron powder stem 90 and metal pipe sleeve 60 (that is: being equivalent to induction coil 70), make For preferred embodiment, the ratio of the internal diameter of the outer diameter and metal pipe sleeve 60 of the iron powder stem 90 of the present embodiment is between 3.5mm:(9-12) Between mm, and iron powder stem 90 and the axial length ratio of metal pipe sleeve 60 are then between (10-14) mm:(12.5-14.5) between mm； Wherein, according to the difference of aforementioned ratio, the metal pipe sleeve 60 of the present embodiment can be according to the actual situation by pure copper material or copper facing gold Belong to material to be made.

The above is only the preferred embodiment of the present invention, and therefore it does not limit the scope of the patent of the utility model, Equivalent structure or equivalent flow shift made by using the description of the utility model and the drawings, is directly or indirectly transported Used in other related technical areas, it is also included in the patent protection scope of the utility model.

Claims (10)

1. a kind of intelligent handwriting device of optional intelligent terminal, it is characterised in that: it includes an electromagnetic screen, by generating electromagnetism Wave with make when making tactile depressing action to electromagnetic screen electromagnetic screen generate inductive signal time writer, be installed on electromagnetic screen with by with Intelligent terminal, which is connected for display interface on intelligent terminal to be synchronized on electromagnetic screen, carries out display and by induction caused by electromagnetic screen The first data communication interface that signal is fed back on intelligent terminal is installed on electromagnetic screen by being connected with intelligent terminal by intelligence Display interface in energy terminal is synchronized to the second data communication interface shown on electromagnetic screen and is installed on electromagnetic screen The third data communication that inductive signal caused by electromagnetic screen is fed back on intelligent terminal to be connect by being connected with intelligent terminal Mouthful.

2. a kind of intelligent handwriting device of optional intelligent terminal as described in claim 1, it is characterised in that: first number It is USB Type-C interface according to communication interface and third data communication interface, second data communication interface connects for HDMI Mouthful.

3. a kind of intelligent handwriting device of optional intelligent terminal as described in claim 1, it is characterised in that: the electromagnetic screen It further include an energy-storage battery for being controlled by screen driving plate and being connected respectively with screen driving plate, antenna plate and display screen.

4. a kind of intelligent handwriting device of optional intelligent terminal as described in claim 1, it is characterised in that: the electromagnetic screen Including a screen driving plate, one with screen driving plate be electrically connected with the display screen of the display interface of simultaneous display intelligent terminal with And one be distributed and be electrically connected with screen driving plate with the production when time writer makees tactile depressing action to display screen in stacked with display screen The antenna plate of raw inductive signal, first data communication interface, the second data communication interface and third data communication interface point It is not connected with screen driving plate, the screen driving plate passes through the first data communication interface or third data communication interface for antenna Inductive signal caused by plate is fed back on intelligent terminal.

5. a kind of intelligent handwriting device of optional intelligent terminal as claimed in claim 4, it is characterised in that: the antenna plate Including substrate and several induction antennas being arranged in a manner of criss-cross in substrate each other, in the screen driving plate It is integrated with central processing unit and is connected between central processing unit and the leading-out terminal of induction antenna with the sensed antenna of convection current Current signal makees the signal amplification module of enhanced processing, and the destination terminal of several induction antennas is grounded simultaneously, and described One data communication interface, the second data communication interface and third data communication interface are connected with central processing unit respectively.

6. a kind of intelligent handwriting device of optional intelligent terminal as claimed in claim 5, it is characterised in that: the substrate packet Include upper cover plate, antenna overlay film and the lower cover plate of from top to bottom sequence and parallelly distribute on；The induction antenna is arranged in antenna overlay film On, the display screen is in contact on upper cover plate and with induction antenna.

7. a kind of intelligent handwriting device of optional intelligent terminal as claimed in claim 6, it is characterised in that: the lower cover plate It is made of one of tinplate, galvanized iron, ferroaluminium material, the upper cover plate is made of nonmetallic materials.

8. a kind of intelligent handwriting device of optional intelligent terminal as claimed in claim 5, it is characterised in that: the signal is put Big module includes preceding stage power amplifier, secondary power amplifier, intermediate stage power amplifier, final power amplifier and negative pressure Signal generating circuit；

The inverting input terminal of the preceding stage power amplifier connects induction day with first capacitor by the first resistor of sequential concatenation The leading-out terminal of line is simultaneously grounded by second resistance connection output end, non-inverting input terminal and passes through 3rd resistor and be connected to first resistor Between first capacitor, the reverse phase that output end passes through the second capacitor of sequential concatenation and third capacitance connection secondary power amplifier Input terminal；

4th resistance of the inverting input terminal sequential concatenation of the secondary power amplifier and the 4th capacitance connection are in the second capacitor It is connect output end, non-inverting input terminal is grounded and passes through the 5th resistance between third capacitor and through the 4th resistance and is connected to second Between capacitor and third capacitor, output end passes through the 6th resistance of sequential concatenation and the 7th resistance connects intermediate stage power amplifier Inverting input terminal；

The inverting input terminal of the intermediate stage power amplifier is by the 8th resistance and the 5th capacitance connection in parallel each other in defeated Outlet, non-inverting input terminal be grounded and pass through the 6th capacitance connection between the 6th resistance and the 7th resistance, output end is by the 7th The non-inverting input terminal of capacitance connection final power amplifier；

The reverse inter-input-ing ending grounding of the final power amplifier simultaneously passes through the 9th resistance of sequential concatenation and the connection of the tenth resistance Non-inverting input terminal output end connects inverting input terminal by eleventh resistor；

The negative pressure signal generation circuit includes phase inverter, first switch diode and second switch diode, the phase inverter Input terminal the output end of final power amplifier, output end connected by twelfth resistor connected simultaneously by the first storage capacitor The cathode of first switch diode and the anode of second switch diode are connect, the cathode of the second switch diode is grounded and connects The signal input part of synchronous transfer mode is connect, the anode of the first switch diode connects centre by the second storage capacitor It manages the signal input part of device and passes through the thirteenth resistor and the 8th capacity earth of sequential series.

9. a kind of intelligent handwriting device of optional intelligent terminal as described in claim 1, it is characterised in that: the time writer Including handwriting, it is packaged in the intracorporal handwriting battery of pen and oscillating circuit board, the metal pipe sleeve being placed in the bottom end of handwriting, winding In the induction coil being electrically connected on the periphery wall of metal pipe sleeve by oscillating circuit board and handwriting battery, by the bottom nozzle of handwriting Sleeve is in pressing nib and be installed in metal pipe sleeve and under the promotion for pressing nib in metal pipe sleeve in metal pipe sleeve Inside make the mobile iron powder stem in position；The induction coil is after receiving oscillating circuit board outputting oscillation signal by pressing nib Export electromagnetic wave.

10. a kind of intelligent handwriting device of optional intelligent terminal as claimed in claim 9, it is characterised in that: the handwriting Peripheral wall on also embedded at least one be used for oscillating circuit board make contradict connection with adjust oscillating circuit board signal export The modifier key of frequency；And counter is integrated on the oscillating circuit board.