Electromagnetic touch pen and touch learning machine

Abstract

The utility model provides an electromagnetic touch control pen and a touch control type learning machine, the electromagnetic touch control pen at least comprises a shell, a pen eraser and a sealing ring, a mounting cavity is formed in the shell, and a mounting opening is formed in the first end of the mounting cavity; the pen eraser is arranged on the mounting opening in a penetrating manner and has elasticity; the sealing ring is arranged on the side, close to the mounting opening, of the mounting cavity, and the outer circumferential face of the sealing ring is configured to be in interference fit with the inner ring face of the shell. When external water makes contact with the position nearby the pen eraser and enters the mounting cavity from a gap between the pen eraser and the mounting opening, due to the fact that the outer circumferential face of the sealing ring is in interference fit with the inner ring face of the shell, the water can be effectively prevented from continuously entering the mounting cavity, and the situation that the function of the electromagnetic touch pen fails due to water inflow is avoided; it is ensured that the electromagnetic touch pen can work normally, and the use experience of a user is effectively improved.

Description

Technical Field

[0001] The present disclosure relates to the field of educational equipment, more specifically, to an electromagnetic stylus pen, and further to a touch-controlled learning machine. Background Art

[0002] With the increasing popularity of touch-screen electronic products, common touch-screen electronic products can be operated by fingers. However, as the resolution of touch screens continues to improve, for users who need high-precision drawing or writing, the contact area between the finger and the touch screen is too large, which cannot meet the high-precision touch requirements. Therefore, electromagnetic stylus pens suitable for touch screens have appeared on the market. Electromagnetic stylus pens are equipped with a pen head that is wear-resistant and will not damage the surface of the touch screen. In order to provide an erasing function, some electromagnetic stylus pens have a pen eraser-related structure at the other end of the pen head. When the pen eraser is attached to the touch screen, the erasing function can be automatically triggered, so that users can draw or write on the touch screen.

[0003] However, as a precision device, the electromagnetic stylus is small in size and can easily fall into a humid environment or be splashed with liquid. The liquid that penetrates into the electromagnetic stylus can easily cause the electromagnetic stylus to malfunction or even be permanently damaged. Utility Model Content

[0004] In order to solve the problems existing in the prior art, the present disclosure provides an electromagnetic touch pen and a touch-controlled learning machine.

[0005] According to a first aspect of the present disclosure, an electromagnetic stylus is provided, comprising:

[0006] A housing, wherein a mounting cavity is formed in the housing, and a mounting opening is disposed at a first end of the mounting cavity;

[0007] A pen eraser, the pen eraser is configured to be installed through the installation opening and has elasticity;

[0008] A sealing ring is arranged on a side of the installation cavity adjacent to the installation opening, and an outer peripheral surface of the sealing ring is configured to be interference fit with an inner annular surface of the housing.

[0009] In one embodiment of the present disclosure, the inner diameter of the mounting cavity is larger than the inner diameter of the mounting port; the pen eraser includes an erasing section, a connecting section and a snap-on section which are sequentially connected as a whole, the outer diameters of the erasing section and the snap-on section are larger than the outer diameters of the mounting port and the snap-on section, and the erasing section is snap-on to the outer side of the mounting port; the snap-on section is snap-on to the inner side of the mounting port.

[0010] In one embodiment of the present disclosure, the eraser is provided with a deformation notch extending from the connecting section to the second end surface of the eraser;

[0011] The clamping section of the eraser is configured to be installed from the outer side of the installation opening to the inner side of the installation opening, and is deformed by utilizing the deformation notch during the installation process.

[0012] In one embodiment of the present disclosure, it further includes a magnetic core, the magnetic core is configured to be movably disposed in the installation cavity along the axial direction, and the first end of the magnetic core abuts against the eraser;

[0013] The eraser is configured to deform when it abuts against the mating surface under the action of an external force, and push the magnetic core to move in a direction away from the eraser, and restore the deformation and reset the magnetic core after the external force is removed.

[0014] In one embodiment of the present disclosure, it also includes a limiting portion; the limiting portion is arranged in the installation cavity, the limiting portion is provided with an accommodating cavity extending along the axial direction, and the first end of the accommodating cavity is provided with an opening; the magnetic core is movably arranged in the accommodating cavity of the limiting portion, and the sealing ring is sleeved on the limiting portion.

[0015] In one embodiment of the present disclosure, an induction coil is further included, which is sleeved on the limiting portion and located at the second end of the sealing ring; the induction coil is constructed to emit a corresponding erasure signal based on the displacement of the magnetic core during the movement of the magnetic core.

[0016] In one embodiment of the present disclosure, a protrusion extending in a ring shape along the circumferential direction is provided on the inner annular surface of the sealing ring, and the sealing ring is constructed to be interference fit between the protrusion and the limiting portion.

[0017] In one embodiment of the present disclosure, the sealing ring comprises a sealing section and a fixing section which are connected in sequence, the sealing section is configured to be interference fit with the inner wall of the installation cavity, the fixing section is arranged on the second side of the sealing section, and the outer diameter of the fixing section is smaller than the outer diameter of the sealing section, and a first limiting protrusion is arranged on the outer annular surface of the sealing section;

[0018] The electromagnetic stylus pen also includes an inner shell; the inner shell is arranged in the outer shell, and the interior thereof forms the installation cavity; a first limiting groove matching the first limiting protrusion is arranged on the inner shell, the first limiting protrusion is clamped in the first limiting groove, and is constructed to limit the rotation of the sealing ring relative to the inner shell.

[0019] In one embodiment of the present disclosure, a second upper limit groove is provided on the outer circumferential surface of the sealing section; a second lower limit groove is provided on the outer circumferential surface of the inner shell adjacent to the sealing section;

[0020] The inner circumferential surface of the shell is provided with a second limiting protrusion matching the second upper limiting groove and the second lower limiting groove;

[0021] The second limiting protrusion is clamped in the second upper limiting groove and the second lower limiting groove, and is configured to limit the sealing ring and the inner shell from rotating relative to the outer shell.

[0022] In one embodiment of the present disclosure, the sealing ring and the eraser are constructed to be integrally connected through a two-material injection molding process.

[0023] In one embodiment of the present disclosure, the eraser is constructed of polyoxymethylene material.

[0024] According to a second aspect of the present disclosure, there is provided a touch-controlled learning machine, comprising:

[0025] The electromagnetic stylus;

[0026] A touch-controlled device is provided with a receiving unit, and the receiving unit is configured to receive an erasing signal generated by the electromagnetic stylus.

[0027] The present disclosure provides an electromagnetic stylus, which is mainly used in conjunction with a touch-controlled device to achieve a touch function. Specifically, the electromagnetic stylus of the present disclosure can be applied to a touch-controlled learning machine, which includes an electromagnetic stylus and a touch-controlled device, so that children and other users can hold the electromagnetic stylus and perform learning, writing, drawing, and other behaviors on the touch-controlled device to learn knowledge or train their abilities.

[0028] Specifically, the electromagnetic stylus pen disclosed in the present invention includes at least a shell, a pen eraser and a sealing ring. A mounting cavity is formed in the shell, and a mounting opening is provided at the first end of the mounting cavity. The pen eraser is constructed to be installed through the mounting opening and has elasticity. The sealing ring is arranged on one side of the mounting cavity adjacent to the mounting opening, and the outer peripheral surface of the sealing ring is constructed to have an interference fit with the inner annular surface of the shell.

[0029] In the electromagnetic stylus pen disclosed in the present invention, since the pen eraser is installed through the installation port and is elastic, during the use of the pen eraser, the pen eraser can be deformed according to the pressure of the user. In this way, the electromagnetic stylus pen disclosed in the present invention can output an erasing signal containing information such as erasing force and erasing position based on the deformation of the pen eraser, thereby realizing the erasing operation.

[0030] Furthermore, since a sealing ring is provided on one side of the mounting cavity adjacent to the mounting opening, and the outer circumferential surface of the sealing ring has an interference fit with the inner annular surface of the outer shell, during the use of the electromagnetic stylus pen disclosed herein, when external water contacts the vicinity of the pen eraser and enters the mounting cavity from the gap between the pen eraser and the mounting opening, the outer circumferential surface of the sealing ring has an interference fit with the inner annular surface of the outer shell, thereby effectively preventing water from continuing to enter the mounting cavity and preventing the electromagnetic stylus pen disclosed herein from malfunctioning due to water ingress, thereby ensuring that the electromagnetic stylus pen disclosed herein can work normally and effectively improving the user experience.

[0031] In particular, when children use the electromagnetic stylus pen and the matching touch-sensitive device disclosed herein, since children often have the habit of biting the pen cap unconsciously, the electromagnetic stylus pen disclosed herein can effectively prevent the electromagnetic stylus pen from malfunctioning due to saliva flowing into the installation cavity caused by children biting the pen cap, thereby effectively extending the service life of the electromagnetic stylus pen disclosed herein.

[0032] Other features and advantages of the present disclosure will become apparent from the following detailed description of exemplary embodiments of the present disclosure with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0034] Figure 1 is a three-dimensional schematic diagram of an electromagnetic stylus provided in an embodiment of the present disclosure;

[0035] Figure 2 is a cross-sectional schematic diagram of an electromagnetic stylus provided in an embodiment of the present disclosure;

[0036] Figure 3 is another cross-sectional schematic diagram of the electromagnetic stylus provided by the embodiment of the present disclosure;

[0037] Figure 4 is an exploded schematic diagram of an electromagnetic stylus provided in an embodiment of the present disclosure;

[0038] Figure 5 is another exploded schematic diagram of the electromagnetic stylus provided by the embodiment of the present disclosure;

[0039] Figure 6 is a partial three-dimensional schematic diagram of an electromagnetic stylus provided in an embodiment of the present disclosure;

[0040] Figure 7 is another partial three-dimensional schematic diagram of the electromagnetic stylus provided in the embodiment of the present disclosure;

[0041] Figure 8 It is another partial three-dimensional schematic diagram of the electromagnetic stylus provided in the embodiment of the present disclosure.

[0042] Figures 1 to 8 The corresponding relationship between the component names and reference numerals is as follows:

[0043] 1. Shell; 11. Second limiting protrusion; 2. Eraser; 21. Erasing section; 22. Connecting section; 23. Clamping section; 24. Deformation notch; 3. Sealing ring; 31. Protrusion; 32. Sealing section; 33. Fixing section; 34. First limiting protrusion; 35. Second upper limiting groove; 4. Mounting cavity; 5. Magnetic core; 6. Limiting section; 7. Inner shell; 71. First limiting groove; 72. Second lower limiting groove; 8. Induction coil. A. First end; B. Second end. DETAILED DESCRIPTION

[0044] Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. It should be noted that unless specifically stated otherwise, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the present disclosure. In all examples shown and discussed here, any specific value should be interpreted as being merely exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values.

[0045] Many specific details are set forth in the following description to facilitate a full understanding of the present disclosure. However, the present disclosure can be implemented in many other ways than those described herein, and those skilled in the art can make similar generalizations without violating the connotation of the present disclosure, so the present disclosure is not limited to the specific implementation disclosed below. Techniques, methods, and devices known to ordinary technicians in the relevant fields may not be discussed in detail, but where appropriate, the techniques, methods, and devices should be considered as part of the specification.

[0046] The terms used in one or more embodiments of the present disclosure are only for the purpose of describing specific embodiments, and are not intended to limit one or more embodiments of the present disclosure. The singular forms of "a", "said" and "the" used in one or more embodiments of the present disclosure and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings. It should also be understood that the term "and / or" used in one or more embodiments of the present disclosure refers to and includes any or all possible combinations of one or more associated listed items.

[0047] It should be understood that, although the terms first, second, etc. may be used to describe various information in one or more embodiments of the present disclosure, these information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of one or more embodiments of the present disclosure, the first may also be referred to as the second, and similarly, the second may also be referred to as the first. Depending on the context, the word "if" as used herein may be interpreted as "at the time of" or "when" or "in response to determination". In this article, "upper", "lower", "front", "back", "left", "right", etc. are only used to indicate the relative position relationship between the relevant parts, rather than to limit the absolute position of these relevant parts. In this article, "equal", "same", etc. are not strictly mathematical and / or geometrical limitations, but also include errors that can be understood by those skilled in the art and allowed by manufacturing or use. Unless otherwise specified, the numerical range herein includes not only the entire range within its two endpoints, but also several sub-ranges contained therein.

[0048] The present disclosure provides an electromagnetic stylus, which is mainly used in conjunction with a touch-controlled device to achieve a touch function. Specifically, the electromagnetic stylus of the present disclosure can be applied to a touch-controlled learning machine, which includes an electromagnetic stylus and a touch-controlled device, so that children and other users can hold the electromagnetic stylus and perform learning, writing, drawing, and other behaviors on the touch-controlled device to learn knowledge or train their abilities.

[0049] Specifically, the electromagnetic stylus pen disclosed in the present invention includes at least a shell, a pen eraser and a sealing ring. A mounting cavity is formed in the shell, and a mounting opening is provided at the first end of the mounting cavity. The pen eraser is constructed to be installed through the mounting opening and has elasticity. The sealing ring is arranged on one side of the mounting cavity adjacent to the mounting opening, and the outer peripheral surface of the sealing ring is constructed to have an interference fit with the inner annular surface of the shell.

[0050] In the electromagnetic stylus pen disclosed in the present invention, since the pen eraser is installed through the installation port and is elastic, during the use of the pen eraser, the pen eraser can be deformed according to the pressure of the user. In this way, the electromagnetic stylus pen disclosed in the present invention can output an erasing signal containing information such as erasing force and erasing position based on the deformation of the pen eraser, thereby realizing the erasing operation.

[0051] Furthermore, since a sealing ring is provided on one side of the mounting cavity adjacent to the mounting opening, and the outer circumferential surface of the sealing ring has an interference fit with the inner annular surface of the outer shell, during the use of the electromagnetic stylus pen disclosed herein, when external water contacts the vicinity of the pen eraser and enters the mounting cavity from the gap between the pen eraser and the mounting opening, the outer circumferential surface of the sealing ring has an interference fit with the inner annular surface of the outer shell, thereby effectively preventing water from continuing to enter the mounting cavity and preventing the electromagnetic stylus pen disclosed herein from malfunctioning due to water ingress, thereby ensuring that the electromagnetic stylus pen disclosed herein can work normally and effectively improving the user experience.

[0052] In particular, when children use the electromagnetic stylus pen and the matching touch-sensitive device disclosed herein, since children often have the habit of biting the pen cap unconsciously, the electromagnetic stylus pen disclosed herein can effectively prevent the electromagnetic stylus pen from malfunctioning due to saliva flowing into the installation cavity caused by children biting the pen cap, thereby effectively extending the service life of the electromagnetic stylus pen disclosed herein.

[0053] For ease of understanding, refer to Figures 1 to 8 , the specific structure and working principle of the electromagnetic stylus pen disclosed in the present invention are explained in detail in combination with an embodiment.

[0054] like Figures 1 to 3 As shown, the present disclosure provides an electromagnetic stylus, which is mainly used in conjunction with a touch-controlled device to achieve a touch function. Specifically, the electromagnetic stylus of the present disclosure can be applied to a touch-controlled learning machine, which includes an electromagnetic stylus and a touch-controlled device, so that children and other users can hold the electromagnetic stylus and perform learning, writing, drawing, etc. on the touch-controlled device to learn knowledge or train their abilities.

[0055] Specifically, the electromagnetic stylus pen disclosed in the present invention includes at least a shell 1, a pen eraser 2 and a sealing ring 3. A mounting cavity 4 is formed in the shell 1, and a mounting opening is provided at the first end of the mounting cavity 4; the pen eraser 2 is constructed to be installed through the mounting opening and has elasticity; the sealing ring 3 is arranged on one side of the mounting cavity 4 adjacent to the mounting opening, and the outer peripheral surface of the sealing ring 3 is constructed to be interference fit with the inner annular surface of the shell 1.

[0056] In the electromagnetic touch pen disclosed in the present invention, since the eraser 2 is installed through the installation port and is elastic, during the use of the eraser 2, the eraser 2 can be deformed according to the pressure of the user. In this way, the electromagnetic touch pen disclosed in the present invention can output an erasing signal containing information such as erasing force and erasing position based on the deformation of the eraser 2, thereby realizing the erasing operation.

[0057] Furthermore, since a sealing ring 3 is provided on one side of the mounting cavity 4 adjacent to the mounting opening, and the outer circumferential surface of the sealing ring 3 is in interference fit with the inner annular surface of the outer shell 1, during the use of the electromagnetic touch pen disclosed in the present invention, when external water contacts the vicinity of the pen eraser 2 and enters the mounting cavity 4 from the gap between the pen eraser 2 and the mounting opening, the outer circumferential surface of the sealing ring 3 is in interference fit with the inner annular surface of the outer shell 1, and thus the water can be effectively prevented from continuing to enter the mounting cavity 4, thereby preventing the electromagnetic touch pen disclosed in the present invention from malfunctioning due to water ingress, thereby ensuring that the electromagnetic touch pen disclosed in the present invention can work normally and effectively improving the user experience.

[0058] In particular, when children use the electromagnetic stylus pen and the matching touch-sensitive device disclosed herein, since children often have the habit of biting the pen cap unconsciously, the electromagnetic stylus pen disclosed herein can effectively prevent the electromagnetic stylus pen from malfunctioning due to saliva flowing into the installation cavity 4 caused by children biting the pen cap, thereby effectively extending the service life of the electromagnetic stylus pen disclosed herein.

[0059] Specifically, Figure 2 and Figure 3 As shown, in one embodiment of the present disclosure, the inner diameter of the mounting cavity 4 is larger than the inner diameter of the mounting opening; the eraser 2 includes an erasing section 21, a connecting section 22 and a snap-on section 23 which are sequentially connected as a whole, the outer diameters of the erasing section 21 and the snap-on section 23 are larger than the outer diameters of the mounting opening and the snap-on section 23, and the erasing section 21 is snap-on to the outer side of the mounting opening; the snap-on section 23 is snap-on to the inner side of the mounting opening.

[0060] Since the outer diameters of the erasing section 21 and the snap-on section 23 of the pen eraser 2 are larger than the outer diameters of the mounting opening and the snap-on section 23, the pen eraser 2 of the present disclosure can utilize the erasing section 21 to snap-on to the outer side of the mounting opening, and utilize the snap-on section 23 to snap-on to the inner side of the mounting opening, thereby effectively pen erasing the pen eraser 2 through and installing it on the mounting opening, which can ensure that the pen eraser 2 can effectively contact and cooperate with the touch-sensitive device, and can also effectively fix the pen eraser 2 on the electromagnetic touch pen of the present disclosure to prevent it from falling.

[0061] In order to further improve the waterproof performance, in one embodiment of the present disclosure, the clamping section 23 and the mounting opening can be interference fit, so that external water can be further prevented from entering the mounting cavity 4 through the gap between the eraser 2 and the mounting opening. In another embodiment of the present disclosure, in order to improve the flexibility of the eraser 2 when moving, the clamping section 23 and the mounting opening can also be clearance fit or transition fit.

[0062] Further, such as Figure 4 and Figure 5As shown, in one embodiment of the present disclosure, a deformation notch 24 is provided on the eraser 2, which passes through the connecting section 22 to the second end surface of the eraser 2; the clamping section 23 of the eraser 2 is constructed to be installed from the outside of the installation opening to the inside of the installation opening, and is deformed by using the deformation notch 24 during the installation process.

[0063] In this way, during the installation process of the pen eraser 2 on the electromagnetic stylus pen of the present invention, the user can press the corresponding part of the deformation notch 24 to deform one side of the clamping section 23 of the pen eraser 2, and then install the clamping section 23 of the pen eraser 2 from the outside of the installation port to the inside of the installation port. After the installation is completed, one side of the clamping section 23 of the pen eraser 2 can automatically restore the deformation, so that the clamping section 23 can be clamped on the inside of the installation port to fix the pen eraser 2.

[0064] It is understandable that the electromagnetic stylus of the present disclosure may include a capacitive stylus and an inductive stylus, wherein the working principle of the capacitive stylus is mainly based on the sensing technology of the capacitive touch screen. When the conductor contacts the screen, a tiny capacitor is formed at the contact point, and the screen can use the capacitive signal for touch control. Capacitive styluses can be divided into active capacitive pens and passive capacitive pens. The active capacitive stylus can transmit signals through the internal antenna and transmit signals to the touch screen using the ejector pin at the tip, so that the touch screen can recognize the position and movement of the capacitive stylus; the passive capacitive stylus mainly relies on the conductor material to achieve touch operation by changing the capacitance value of the touch point.

[0065] In one embodiment of the present disclosure, the electromagnetic stylus pen of the present disclosure is an inductive stylus pen. Figure 2 and Figure 3 As shown, the electromagnetic touch pen disclosed in the present invention also includes a magnetic core 5, which is constructed to be axially movably arranged in the installation cavity 4, and the first end of the magnetic core 5 abuts against the eraser 2; the eraser 2 is constructed to deform when abutted under the action of an external force, and push the magnetic core 5 to move away from the eraser 2, and restore the deformation after the external force is removed, and reset the magnetic core 5.

[0066] During the operation of the electromagnetic touch pen disclosed in the present invention, the eraser 2 is deformed according to the pressure of the user, and can push the magnetic core 5 to move axially. When the magnetic core 5 moves axially, it can cooperate with other structures to trigger a corresponding electromagnetic induction signal, and the touch-sensitive device can implement an erasing operation based on the electromagnetic induction signal.

[0067] It is understandable that the touch-controlled device can obtain the emission position of the electromagnetic induction signal, thereby obtaining the position of the eraser 2; and the electromagnetic induction signal triggered by the magnetic core 5 is related to the axial position of the magnetic core 5, and the axial position of the magnetic core 5 is related to the deformation degree of the eraser 2, and the deformation degree of the eraser 2 is related to the pressure of the user, so that different electromagnetic induction signals can be triggered when the user presses the eraser 2 with different forces. In this way, the touch-controlled device can implement corresponding erasing operations based on the position of the eraser 2 and the pressure of the user. In order to detect the electromagnetic induction signal triggered by the magnetic core 5, an electromagnetic induction plate can be set below the screen or separately on the touch-controlled device, so that the electromagnetic induction plate can effectively obtain the electromagnetic induction signal triggered by the magnetic core 5. Figure 2 and Figure 3 As shown, the front end of the magnetic core 5 can be interference fit with the eraser 2, and when the eraser 2 automatically resets itself after the external force is removed, it can drive the magnetic core 5 to automatically reset itself; of course, a reset spring or other structure can also be provided on the magnetic core 5, so that when the eraser 2 automatically resets itself after the external force is removed, the reset spring or other structure can drive the magnetic core 5 to automatically reset itself.

[0068] like Figure 2 and Figure 3 As shown, in one embodiment of the present disclosure, the electromagnetic touch pen of the present disclosure further includes a limiting portion 6; the limiting portion 6 is arranged in the installation cavity 4, the limiting portion 6 is provided with an accommodating cavity extending in the axial direction, and the first end of the accommodating cavity is provided with an opening; the magnetic core 5 is movably arranged in the accommodating cavity of the limiting portion 6, and the sealing ring 3 is sleeved on the limiting portion 6. In this way, during the operation of the electromagnetic touch pen of the present disclosure, the eraser 2 can push the magnetic core 5 to move axially in the installation cavity 4 surrounded by the limiting portion 6 after deformation, and the limiting portion 6 can effectively limit the moving direction of the magnetic core 5, thereby ensuring that the magnetic core 5 can cooperate with other structures to trigger the corresponding electromagnetic induction signal when moving in the axial direction.

[0069] like Figures 2 to 5 As shown, in one embodiment of the present disclosure, the electromagnetic stylus pen of the present disclosure further includes an induction coil 8, which is sleeved on the limit portion 6 and located at the second end of the sealing ring 3; the induction coil 8 is configured to emit a corresponding erasing signal based on the displacement of the magnetic core 5 during the movement of the magnetic core 5. That is, during the operation of the electromagnetic stylus pen of the present disclosure, the eraser 2 is deformed according to the pressure of the user, and can push the magnetic core 5 to move axially. When the magnetic core 5 moves axially, electromagnetic induction can occur between the induction coil 8. The induction coil 8 can emit a corresponding erasing signal based on the displacement of the magnetic core 5 during the movement of the magnetic core 5, and the touch-sensitive device can implement an erasing operation based on the erasing signal.

[0070] Since the induction coil 8 is located at the second end of the sealing ring 3, the outer circumferential surface of the sealing ring 3 and the inner annular surface of the outer shell 1 have an interference fit, which can effectively prevent water from continuing to enter the installation cavity 4 and prevent external water from contacting the induction coil 8, causing damage to the induction coil 8, thereby ensuring that the electromagnetic stylus pen disclosed in the present invention can work normally and effectively improve the user experience.

[0071] like Figure 2 and Figure 3 As shown, in one embodiment of the present disclosure, a protrusion 31 extending in a ring shape in the circumferential direction is provided on the inner ring surface of the sealing ring 3, and the sealing ring 3 is constructed to have an interference fit between the protrusion 31 and the limiting portion 6. Since the protrusion 31 extending in a ring shape in the circumferential direction is provided on the inner ring surface of the sealing ring 3, and the sealing ring 3 has an interference fit with the limiting portion 6 through the protrusion 31, it is possible to further prevent external water from entering the position of the induction coil 8 through the gap between the sealing ring 3 and the limiting portion 6, thereby improving the waterproof performance of the electromagnetic stylus pen of the present disclosure.

[0072] Specifically, Figure 2 and Figure 3 As shown, in one embodiment of the present disclosure, the electromagnetic stylus pen also includes an inner shell 7, which is arranged in the outer shell 1 and has an installation cavity 4 formed therein, and various structures such as a limiting portion 6 and an induction coil 8 are arranged in the installation cavity 4 formed by the inner shell 7.

[0073] like Figure 6 As shown, in one embodiment of the present disclosure, the sealing ring 3 includes a sealing section 32 and a fixed section 33 which are connected in sequence and are integrally connected. The sealing section 32 is constructed to be interference fit with the inner wall of the installation cavity 4. The fixed section 33 is arranged on the second side of the sealing section 32, and the outer diameter of the fixed section 33 is smaller than the outer diameter of the sealing section 32. A first limiting protrusion 34 is arranged on the outer annular surface of the sealing section 32; a first limiting groove 71 matching the first limiting protrusion 34 is arranged on the inner shell 7, the first limiting protrusion 34 is clamped in the first limiting groove 71, and is constructed to limit the rotation of the sealing ring 3 relative to the inner shell 7.

[0074] In this way, the sealing section 32 of the sealing ring 3 disclosed in the present invention can effectively realize the waterproof function, and the fixed section 33 can utilize the first limiting protrusion 34 to be clamped in the first limiting groove 71 of the inner shell 7, thereby limiting the rotation of the sealing ring 3 relative to the inner shell 7, preventing the sealing ring 3 from being displaced relative to the inner shell 7 during the long-term use of the electromagnetic stylus pen, resulting in a decrease in the sealing performance, and effectively maintaining the waterproof performance of the electromagnetic stylus pen.

[0075] Similar, such as Figure 7 and Figure 8As shown, in one embodiment of the present disclosure, a second upper limit groove 35 is provided on the outer circumference of the sealing section 32; a second lower limit groove 72 is provided on the outer circumference of the inner shell 7 adjacent to the sealing section 32; a second limit protrusion 11 matching the second upper limit groove 35 and the second lower limit groove 72 is provided on the inner circumference of the outer shell 1; the second limit protrusion 11 is engaged in the second upper limit groove 35 and the second lower limit groove 72, and is configured to limit the rotation of the sealing ring 3 and the inner shell 7 relative to the outer shell 1. In this way, the second limit protrusion 11 on the outer shell 1 can be engaged in the second upper limit groove 35 on the sealing section 32 and the second lower limit groove 72 on the inner shell 7 at the same time, so as to effectively limit the rotation of the sealing ring 3 and the inner shell 7 relative to the outer shell 1, prevent the relative displacement of the sealing ring 3 and the inner shell 7 during the long-term use of the electromagnetic stylus pen, and cause the sealing performance to be reduced, effectively maintain the waterproof performance of the electromagnetic stylus pen, and ensure that the electromagnetic stylus pen of the present disclosure can work normally.

[0076] In one embodiment of the present disclosure, the pen eraser 2 of the present disclosure is constructed to be made of polyoxymethylene material. When the pen eraser 2 of the present disclosure is made of polyoxymethylene material, it is a hard rubber with low friction and excellent wiping feel, which can effectively improve the user experience. Similarly, in one embodiment of the present disclosure, the sealing ring 3 of the present disclosure can be made of materials such as silicone rubber. When the sealing ring 3 of the present disclosure is made of materials such as silicone rubber, the sealing effect is good and the waterproof function can be effectively achieved.

[0077] like Figure 2 and Figure 3 As shown, in one embodiment of the present disclosure, the sealing ring 3 and the eraser 2 are connected separately, so that the sealing ring 3 and the eraser 2 can be produced and installed. In another embodiment of the present disclosure, in another embodiment of the present disclosure, the sealing ring 3 and the eraser 2 are constructed to be connected as a whole through a double-material injection molding process. That is, when the sealing ring 3 of the present disclosure is made of a hard glue such as polyformaldehyde, and the eraser 2 is made of a soft glue such as silicone rubber, the sealing ring 3 and the eraser 2 of the present disclosure can be connected as a whole through a double-material injection molding process, which can effectively improve the structural strength of the sealing ring 3 and the eraser 2, and can also ensure the realization of their respective functions, effectively meeting the needs.

[0078] The electromagnetic stylus pen disclosed in the present invention also provides a touch-controlled learning machine, which includes a matching electromagnetic stylus pen and a touch-controlled device. The touch-controlled device is provided with a receiving unit, and the receiving unit is constructed to receive an erasing signal generated by the electromagnetic stylus pen.

[0079] In the electromagnetic touch pen disclosed in the present invention, since the eraser 2 is installed through the installation port and is elastic, during the use of the eraser 2, the eraser 2 can be deformed according to the pressure of the user. In this way, the electromagnetic touch pen disclosed in the present invention can output an erasing signal containing information such as erasing force and erasing position based on the deformation of the eraser 2, and the receiving unit on the touch-sensitive device can receive the erasing signal generated by the electromagnetic touch pen to realize the erasing operation.

[0080] Since a sealing ring 3 is provided on one side of the mounting cavity 4 adjacent to the mounting opening of the electromagnetic touch pen disclosed in the present invention, and the outer peripheral surface of the sealing ring 3 is interference fit with the inner ring surface of the outer shell 1, during the use of the electromagnetic touch pen disclosed in the present invention, when external water contacts the vicinity of the pen eraser 2 and enters the mounting cavity 4 from the gap between the pen eraser 2 and the mounting opening, the outer peripheral surface of the sealing ring 3 is interference fit with the inner ring surface of the outer shell 1, which can effectively prevent water from continuing to enter the mounting cavity 4, thereby preventing the electromagnetic touch pen disclosed in the present invention from malfunctioning due to water ingress, ensuring that the electromagnetic touch pen disclosed in the present invention can work normally, and effectively improving the user experience.

[0081] In particular, when children use the electromagnetic stylus pen and the matching touch-sensitive device disclosed herein, since children often have the habit of biting the pen cap unconsciously, the electromagnetic stylus pen disclosed herein can effectively prevent the electromagnetic stylus pen from malfunctioning due to saliva flowing into the installation cavity 4 caused by children biting the pen cap, thereby effectively extending the service life of the electromagnetic stylus pen disclosed herein.

[0082] The embodiments of the present disclosure have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The choice of terms used herein is intended to best explain the principles of the embodiments, practical applications, or technical improvements in the marketplace, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein. The scope of the present disclosure is defined by the appended claims.

Claims

1. An electromagnetic stylus pen, characterized in that: include: A housing (1), wherein a mounting cavity (4) is formed in the housing (1), and a mounting opening is provided at a first end of the mounting cavity (4); A pen eraser (2), the pen eraser (2) being configured to be installed through the installation opening and having elasticity; A sealing ring (3) is arranged on a side of the installation cavity (4) adjacent to the installation opening, and an outer peripheral surface of the sealing ring (3) is configured to be interference fit with an inner annular surface of the housing (1).

2. The electromagnetic stylus pen according to claim 1, characterized in that: The inner diameter of the mounting cavity (4) is larger than the inner diameter of the mounting opening; the eraser (2) comprises an erasing section (21), a connecting section (22) and a clamping section (23) which are connected in sequence and in one piece; the outer diameters of the erasing section (21) and the clamping section (23) are larger than the outer diameters of the mounting opening and the clamping section (23), and the erasing section (21) is clamped to the outer side of the mounting opening; and the clamping section (23) is clamped to the inner side of the mounting opening.

3. The electromagnetic stylus pen according to claim 2, characterized in that: The pen eraser (2) is provided with a deformation notch (24) extending from the connecting section (22) to the second end surface of the pen eraser (2); the clamping section (23) of the pen eraser (2) is configured to be installed from the outside of the installation opening to the inside of the installation opening, and to be deformed by utilizing the deformation notch (24) during the installation process.

4. The electromagnetic stylus pen according to claim 1, characterized in that: It also comprises a magnetic core (5), the magnetic core (5) being configured to be movably disposed in the mounting cavity (4) along the axial direction, and the first end of the magnetic core (5) abuts against the eraser (2); The eraser (2) is constructed to deform when it abuts against a mating surface under the action of an external force, and to push the magnetic core (5) to move in a direction away from the eraser (2), and to restore the deformation and reset the magnetic core (5) after the external force is removed.

5. The electromagnetic stylus pen according to claim 4, characterized in that: It also includes a limiting portion (6); the limiting portion (6) is arranged in the installation cavity (4); the limiting portion (6) is provided with an accommodating cavity extending along the axial direction; the first end of the accommodating cavity is provided with an opening; the magnetic core (5) is movably arranged in the accommodating cavity of the limiting portion (6); and the sealing ring (3) is sleeved on the limiting portion (6).

6. The electromagnetic stylus pen according to claim 5, characterized in that: It also comprises an induction coil (8), which is sleeved on the limiting portion (6) and located at the second end of the sealing ring (3); the induction coil (8) is configured to emit a corresponding erasure signal based on the displacement of the magnetic core (5) during the movement of the magnetic core (5).

7. The electromagnetic stylus pen according to claim 5, characterized in that: The inner ring surface of the sealing ring (3) is provided with a protruding portion (31) extending in a circumferential direction and in an annular shape, and the sealing ring (3) is constructed so as to be interference-fitted with the limiting portion (6) through the protruding portion (31).

8. The electromagnetic stylus pen according to claim 5, characterized in that: The sealing ring (3) comprises a sealing section (32) and a fixing section (33) which are connected in sequence and are integrally connected, the sealing section (32) being configured to be interference-fitted with the inner wall of the mounting cavity (4), the fixing section (33) being arranged on the second side of the sealing section (32), and the outer diameter of the fixing section (33) being smaller than the outer diameter of the sealing section (32), and a first limiting protrusion (34) being arranged on the outer annular surface of the sealing section (32); The electromagnetic stylus pen further comprises an inner shell (7); the inner shell (7) is arranged inside the outer shell (1), and the inner shell forms the mounting cavity (4); the inner shell (7) is provided with a first limiting groove (71) matching the first limiting protrusion (34), the first limiting protrusion (34) is snap-fitted into the first limiting groove (71), and is configured to limit the sealing ring (3) from rotating relative to the inner shell (7).

9. The electromagnetic stylus pen according to claim 8, characterized in that: A second upper limit groove (35) is provided on the outer circumferential surface of the sealing section (32); a second lower limit groove (72) is provided on the outer circumferential surface of the inner shell (7) adjacent to the sealing section (32); A second limiting protrusion (11) matching the second upper limiting groove (35) and the second lower limiting groove (72) is provided on the inner circumferential surface of the housing (1); The second limiting protrusion (11) is engaged in the second upper limiting groove (35) and the second lower limiting groove (72), and is configured to limit the rotation of the sealing ring (3) and the inner shell (7) relative to the outer shell (1).

10. The electromagnetic stylus pen according to claim 1, characterized in that: The sealing ring (3) and the eraser (2) are constructed to be integrally connected through a two-material injection molding process.

11. The electromagnetic stylus pen according to any one of claims 1 to 10, characterized in that: The eraser (2) is constructed of polyoxymethylene material.

12. A touch-controlled learning machine, characterized in that: include: The electromagnetic stylus pen according to any one of claims 1 to 11; A touch-controlled device is provided with a receiving unit, and the receiving unit is configured to receive an erasing signal generated by the electromagnetic stylus.

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