CN202870758U - Electromagnetic pen with electromagnetic and ink writing functions - Google Patents

Abstract

The utility model relates to an electromagnetic pen with both electromagnetic and ink writing functions. The electromagnetic pen of the utility model comprises at least a pen housing component, a retractable pen core mechanism, a pen tip and a retractable pen core, an iron core, a retractable pen core seat, an elastic conductor component and a circuit board. The pen tip and the retractable pen core are arranged in the pen housing component and are controlled by the retractable pen core mechanism.

Description

Electromagnetic pen with both electromagnetic and ink writing functions

technical field

The utility model relates to an electromagnetic pen, in particular to an electromagnetic pen with both electromagnetic and ink writing functions.

Background technique

The operation principle of the electromagnetic input technology is mainly based on a circuit board with multiple induction antenna loops or antennas distributed along the axial direction, and an electromagnetic pen capable of emitting electromagnetic signals to perform input actions. Therefore, the induction plane of the electromagnetic input device is formed by an antenna or an induction coil. The antenna or induction coil is arranged under the working surface of the input device or behind the display screen. When the electromagnetic pen is in operation, the coordinate position of the electromagnetic pen is obtained by signal processing and calculation of electromagnetic waves transmitted between the oscillation circuit in the electromagnetic pen and the antenna or induction coil.

Input devices using electromagnetic input technology include smart mobile communication devices (SmartPhone), digital boards (Digitizer tablets) or e-books (E-book/Green book), which must be used together with electromagnetic pens or digital pens (stylus) for input operate.

The oscillating circuit of the electromagnetic pen usually includes inductance, capacitance and related components and is placed in the pen shell. Inductors consist of iron powder cores (ferrite core) with wound metal coils and capacitors and other related components to form an oscillating circuit to transmit and receive electromagnetic wave signals with the antenna loop or induction coil of the input device. The frequency of the oscillating circuit in the electromagnetic pen is usually changed by changing the capacitance or inductance, so the design of the electromagnetic pen can determine whether the capacitance or inductance of the oscillating circuit of the electromagnetic pen is variable or adjustable according to the needs of use.

The utility model proposes an electromagnetic pen that is used with an input device and has both electromagnetic and ink writing functions.

This shows that the above-mentioned existing electromagnetic pen obviously still has inconvenience and defects in structure and use, and needs to be further improved urgently. Therefore how to create a novel structure of an electromagnetic pen with both electromagnetic and ink writing functions has also become a goal that the current industry needs to improve.

In view of the above-mentioned defects in the existing electromagnetic pen, the inventor actively researches and innovates based on years of rich practical experience and professional knowledge engaged in the design and manufacture of this type of product, and cooperates with the application of academic theories, in order to create a new type of both The electromagnetic pen with the functions of electromagnetic and ink writing can improve the general existing electromagnetic pen and make it more practical. Through continuous research, design, and after repeated trial samples and improvements, the utility model with practical value is finally created.

Contents of the invention

The purpose of this utility model is to overcome the existing defects of the existing electromagnetic pen, and provide a novel structure electromagnetic pen with both electromagnetic and ink writing functions. The technical problem to be solved is to make the force applied by the electromagnetic pen write The contact state between the elastic conductor element and the conductor contact of the circuit board is changed to perform the function of an electromagnetic pen or a wireless pen, which is very suitable for practical use.

The purpose of this utility model and the solution to its technical problems are achieved by adopting the following technical solutions. An electromagnetic pen proposed according to the utility model, wherein the electromagnetic pen comprises: at least one pen shell element; The pen core retractable mechanism, the pen point is arranged at one end of the pen core, so that the pen point can be stretched out or retracted from the pen shell element, and the pen point has the function of outputting ink; the iron core is arranged in the pen shell element and There is a coil wound on the iron core, the iron core is hollow so that the pen core can slide therein; the pen core seat, the pen core seat accommodates the other end of the pen core; the key, the key is set from the inside of the pen shell element, and Set adjacent to the refill retractable mechanism; elastic conductor element; and circuit board, one side of the circuit board has a plurality of conductor contacts, the elastic conductor element is located between the conductor contact and the refill seat, and the coil is connected to the circuit board.

The purpose of the utility model and the solution to its technical problems can also be further realized by adopting the following technical measures.

The aforementioned electromagnetic pen is characterized in that the electromagnetic pen is used in an intelligent mobile communication device, a digital board or an electronic book.

The aforementioned electromagnetic pen is characterized in that the elastic conductor element comprises a conical spring or conductive rubber.

The aforementioned electromagnetic pen is characterized by further comprising a capacitive-inductive oscillating circuit, wherein when the center of the conical spring contacts the conductor contact, the frequency of the capacitive-inductive oscillating circuit decreases.

The aforementioned electromagnetic pen is characterized in that when the center of the conical spring contacts the conductor contact, the equivalent capacitance of the capacitive-inductive oscillating circuit is increased, thereby reducing its frequency.

The purpose of the utility model and its technical problem solving also adopt the following technical schemes to realize. According to the utility model, an electromagnetic pen used in conjunction with an electromagnetic input device is proposed, wherein the electromagnetic pen includes: a first pen shell element and a second pen shell element; a pen core retractable mechanism; a pen tip and a pen core; The pen core is set in the first pen housing element and controlled by the pen core retractable mechanism, the pen tip is set at one end of the pen core, so that the pen tip can extend or retract from the first pen housing element, the The nib has the function of outputting ink; the iron core is arranged in the first pen shell element and has a coil winding the iron core, the iron core is hollow so that the pen core can slide therein; the pen core seat, the pen core seat accommodates the pen core The other end of the elastic conductor element; and a circuit board, one side of the circuit board has a plurality of conductor contacts, the elastic conductor element is located between the conductor contacts and the refill seat, and the coil is connected to the circuit board.

The purpose of the utility model and the solution to its technical problems can also be further realized by adopting the following technical measures.

The aforementioned electromagnetic pen is characterized in that the electromagnetic input device includes an intelligent mobile communication device, a digital board or an electronic book.

The above-mentioned electromagnetic pen is characterized in that it further includes a button, which is arranged from the inside to the outside of the second pen housing element, and serves as a switch of the pen core retractable mechanism.

The aforementioned electromagnetic pen is characterized in that the elastic conductor element comprises a conical spring or conductive rubber.

The aforementioned electromagnetic pen is characterized by further comprising a capacitive-inductive oscillating circuit, wherein when the center of the conical spring contacts the conductor contact, the frequency of the capacitive-inductive oscillating circuit decreases.

The aforementioned electromagnetic pen is characterized in that when the center of the conical spring contacts the conductor contact, the equivalent capacitance of the capacitive-inductive oscillating circuit is increased, thereby reducing its frequency.

Compared with the prior art, the utility model has obvious advantages and beneficial effects. It can be seen from the above technical content that in order to achieve the above purpose, the utility model provides an electromagnetic pen. The electromagnetic pen comprises at least one shell element, a pen core retractable mechanism, a pen point and a pen core, an iron core, a conductor coil, an elastic conductor element of a pen core seat and a circuit board. The nib and the refill are arranged in the pen shell element and are arranged adjacent to the refill retractable mechanism. The nib is arranged at one end of the pen core, so that the nib can extend or retract from the pen housing element, and the nib has the function of outputting ink. The iron core is arranged in the pen shell element and has a coil wound iron core, and the iron core is hollow so that the pen lead can slide therein. The refill seat accommodates the other end of the refill. One side of the circuit board has multiple conductor contacts, the elastic conductor element is located between the conductor contacts and the cartridge seat, and the coil is connected to the circuit board.

By means of the above-mentioned technical scheme, the electromagnetic pen with both electromagnetic and ink writing functions of the utility model has at least the following advantages and beneficial effects: the force applied when the electromagnetic pen writes changes the contact state of the elastic conductor element and the conductor contact of the circuit board to perform The function of the electromagnetic pen or the wireless pen, the nib is set at one end of the pen core, so that the nib can extend or retract from the pen housing element, and the nib has the function of outputting ink. The function of the electromagnetic pen structure used in the embodiment of the utility model can be determined by changing the circuit design according to the requirement.

The above description is only an overview of the technical solution of the utility model. In order to understand the technical means of the utility model more clearly, it can be implemented according to the contents of the description, and in order to make the above and other purposes, features and advantages of the utility model better It is obvious and easy to understand. The preferred embodiments are specifically cited below, together with the accompanying drawings, and detailed descriptions are as follows.

Description of drawings

Fig. 1 shows an embodiment of the electromagnetic pen of the present invention.

FIG. 1A is a cross-sectional view of an electromagnetic pen according to an embodiment of the present invention.

FIG. 2 shows a schematic diagram of a switch composed of elastic conductor elements and conductor contacts of a circuit board in an embodiment of the present invention.

FIG. 3 shows a schematic diagram of a capacitor-inductor oscillation circuit in an embodiment of the present invention.

[Description of main component symbols]

100: electromagnetic pen 102: button

104a: Pen shell component 104b: Pen shell component

106: Nib 108: Iron core

110: Refill 111: Conductor coil

112: Spring 114: Elastic conductor element

114a: conical spring 116: refill seat

118: circuit board 119: conductor contact

120: Refill retractable mechanism

Detailed ways

In order to further explain the technical means and effects of the utility model to achieve the intended purpose of the invention, in conjunction with the accompanying drawings and preferred embodiments, the specific implementation of the electromagnetic pen with both electromagnetic and ink writing functions proposed according to the utility model is given below. Mode, structure, feature and effect thereof are as follows in detail.

Some embodiments of the present invention will be described in detail as follows. However, in addition to the following descriptions, the utility model can also be widely implemented in other embodiments, and the scope of the utility model is not limited by the embodiments, which are subject to the scope of the patents that follow. Furthermore, in order to provide a clearer description and easier understanding of the utility model, the various parts in the drawings have not been drawn according to their relative dimensions, and some dimensions have been exaggerated compared with other relevant dimensions; irrelevant details have not been fully drawn out, in order to simplify the schema.

Fig. 1 shows an embodiment of the electromagnetic pen of the present invention. As shown in FIG. 1 , the electromagnetic pen 100 externally includes a button 102 , pen housing components 104 a and 104 b (first pen housing component and second pen housing component) and a pen tip 106 .

FIG. 1A is a cross-sectional view of an electromagnetic pen according to an embodiment of the present invention. Electromagnetic pen 100 includes button 102, pen casing elements 104a and 104b and pen tip 106, and further includes iron core (ferrite core) 108, pen core 110, conductor coil 111, spring 112, elastic conductor element 114, pen core seat 116, circuit Plate 118 and pen core retractable mechanism 120. The pen casing elements 104a and 104b include hollow pen barrel elements made of plastic or metal materials to accommodate the iron core 108, the pen core 110, the conductor coil 111, the spring 112, the elastic conductor element 114, the pen core seat 116, and the circuit board 118 And pen core telescopic mechanism 120.

In an embodiment of the present invention, the nib 106 is connected with the refill 110, and passes through the opening of one end of the pen shell element 104a from inside the pen shell element 104a. The nib 106 has the function of outputting ink, and the ink is supplied by the refill 110 . The other end of the refill 110 is accommodated by a refill holder 116 .

In one embodiment of the present invention, the iron core 108 is located in the hollow pen case member 104a. The iron core 108 is hollow, so that the pen core 110 can move axially in the iron core 108 . The core 108 is wound with a conductor coil 111 with multiple turns (for example, a thin enameled wire wound with many turns). The conductor coil 111 on the core 108 is connected to the circuit on the circuit board 118 to form an oscillation circuit with the capacitive element on the circuit board 118 .

In an embodiment of the present invention, the circuit board 118 is fixed in the pen core retractable mechanism 120 and moves in the pen shell elements 104 a and 104 along with the pen core telescopic mechanism 120 . The end of the circuit board 118 facing the direction of the pen tip has a conductor contact 119 , and the elastic conductor element 114 is located between the circuit board 118 and the pen core holder 116 . The circuit board 118 pushes the elastic conductor element 114 through the refill seat 116 to conduct the conductor contacts of the circuit board 118 . The details of this part will be described below.

The circuit board 118 includes a printed circuit board. The printed circuit board has an oscillating circuit and control elements, etc., so that the electromagnetic pen can transmit electromagnetic wave signals to the input device, or receive electromagnetic wave signals from the antenna or induction coil of the input device. The input device includes an intelligent mobile communication device, a digital board or an electronic book and the like.

In an embodiment of the present invention, the button 102 is arranged from the inside to the outside of the pen shell element 104 b to serve as a switch of the pen core retractable mechanism 120 . The refill telescoping mechanism 120 can be formed by any mechanical structure, and the mechanism shown in FIG. 1A is just an example and not limiting. The pen core retractable mechanism 120 is pushed by the button 102 . When the button 102 is stressed, the refill retractable mechanism 120 together with the circuit board 118 and the refill seat 116 will squeeze the spring 112 and move the refill 110 in the axial direction. When writing, the refill 110 drives the nib 106 to protrude from the pen housing element 104a, and the refill retractable mechanism 120 is fixed by hooks or other devices, and the spring 112 is deformed into a squeezed state. When the pen tip 106 is to be withdrawn, the button 102 is pressed to disengage the pen core telescopic mechanism 120 from the hook or other devices, and the pen core telescopic mechanism 120 is pushed back to the original position by the elastic restoring force of the spring 112 .

In one embodiment of the present utility model, the button 102 is forced to make the refill telescopic mechanism 120 drive the refill seat 116 and the refill 110 to move axially, and the refill 110 passing through the iron core 108 will push the nib 106 out of the pen case. 104a protrudes. When writing, the nib 106 is pressed to drive the refill 110 and the refill holder 116 to move, and the refill holder 116 is further in contact with the elastic conductor element 114 disposed between the refill holder 116 and the circuit board 118 . The elastic conductor element 114 changes the contact state with the conductor contact 119 of the circuit board 118 through the promotion of the refill seat 116, and when the conductor contact 119 of the circuit board 118 is turned on, the electrical properties of the circuit on the circuit board 118 (such as LC oscillation frequency) changes.

In an embodiment of the present invention, the elastic conductor element 114 includes a thinner conical spring or conductive rubber, but is not limited thereto. FIG. 2 shows a schematic diagram of a switch composed of elastic conductor elements and conductor contacts of a circuit board in an embodiment of the present invention. The elastic conductor element 114 takes the conical spring 114a as an example. When the pen core seat 116 presses the conical spring 114a due to displacement, the central part of the conical spring 114a will contact a plurality of conductor contacts 119 on one side of the circuit board 118, thereby making The circuit of some components on the circuit board 118 is turned on, causing changes in the electrical properties of the circuit (such as LC oscillation frequency). The conical spring 114a is shown completely separated from the circuit board 118 in FIG. 2 for ease of understanding only. In fact, when the refill seat 116 does not press the conical spring 114a, the conical spring 114a is set in contact with the circuit board 118, and only the center of the conical spring 114a is separated from the central conductor contact 119.

FIG. 3 shows a schematic diagram of a capacitor-inductor oscillation circuit in an embodiment of the present invention. The inductance L is the equivalent inductance of the oscillating circuit, and the inductance L includes the inductance formed by the iron core 108 and the conductor coil 111 . The capacitor C is the capacitor of the circuit board 118 , and the capacitor Ctip is the capacitor controlled by the switch S on the circuit board 118 . In one embodiment of the present utility model, when the switch S composed of the elastic conductor element 114 and the circuit board conductor contact 119 makes the capacitance Ctip add the oscillation circuit of the circuit board 118 and connect it in parallel with the capacitance C, the parallel connection of the capacitance Ctip and the capacitance C will make An increase in the equivalent capacitance of the oscillating circuit changes or decreases the frequency of the oscillating circuit. Therefore, when the elastic conductor element 114 is pushed by the refill seat 116 to make the conductor contact of the circuit board 118 conduct, changing the transmission frequency of the oscillating circuit of the electromagnetic pen 100 can be used to enable the input device to open the writing function of the electromagnetic pen or wireless pen, but not limited to this.

It is worth noting that the embodiments of the present invention focus on the structure of the electromagnetic pen, rather than limiting the functions of the electromagnetic pen. Therefore, the structure of the electromagnetic pen in the embodiment of the present invention can be applied to perform various functions of the electromagnetic pen according to requirements. The function of the electromagnetic pen structure used in the embodiment of the utility model can be determined by changing the circuit design according to the requirement.

The above are only preferred embodiments of the present utility model, and do not limit the utility model in any form. Although the utility model has been disclosed as above with preferred embodiments, it is not intended to limit the utility model. Any Those skilled in the art, without departing from the scope of the technical solution of the present utility model, can use the structure and technical content disclosed above to make some changes or modify equivalent embodiments with equivalent changes, but all without departing from the utility model The content of the new technical solution, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present utility model still belong to the scope of the technical solution of the utility model.

Claims (9)

1. An electromagnetic pen, characterized in that the electromagnetic pen comprises: at least one pen housing element; Refill retractable mechanism; a nib and a refill, the nib and the refill are arranged in the pen shell element and adjacent to the refill retractable mechanism, the nib is arranged at one end of the refill; an iron core, which is arranged in the pen shell element and has a coil wound around the iron core, and the iron core is hollow; a pen core seat, the pen core seat accommodates the other end of the pen core; a button, the button is arranged from the inside of the pen housing element to the outside, and is arranged adjacent to the pen core telescopic mechanism; elastic conductor elements; and A circuit board, one side of the circuit board has a plurality of conductor contacts, the elastic conductor element is located between the conductor contacts and the pen holder, and the coil is connected to the circuit board. 2. The electromagnetic pen according to claim 1, wherein the electromagnetic pen is used for smart mobile communication devices, digital boards or electronic books. 3. The electromagnetic pen as claimed in claim 1, wherein the elastic conductor element comprises a conical spring or conductive rubber. 4. The electromagnetic pen according to claim 3, further comprising a capacitive inductive oscillator circuit. 5. An electromagnetic pen used with an electromagnetic input device, characterized in that the electromagnetic pen includes: the first pen shell element and the second pen shell element; Refill retractable mechanism; a nib and a refill, the nib and the refill are arranged in the first pen housing element and adjacent to the refill retractable mechanism, the nib is arranged at one end of the refill; an iron core, which is arranged in the first pen housing element and has a coil wound around the iron core, and the iron core is hollow; a pen core seat, the pen core seat accommodates the other end of the pen core; elastic conductor elements; and A circuit board, one side of the circuit board has a plurality of conductor contacts, the elastic conductor element is located between the conductor contacts and the pen holder, and the coil is connected to the circuit board. 6. The electromagnetic pen according to claim 5, wherein the electromagnetic input device comprises a smart mobile communication device, a digital tablet or an electronic book. 7 . The electromagnetic pen as claimed in claim 5 , further comprising a button, the button is arranged from the inside to the outside of the second pen shell element, and is arranged adjacent to the refill retractable mechanism. 8 . 8. The electromagnetic pen as claimed in claim 5, wherein the elastic conductor element comprises a conical spring or conductive rubber. 9. The electromagnetic pen according to claim 8, further comprising a capacitive inductive oscillator circuit.

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