Capacitance pen with eraser function
By introducing an eraser function and an electronic control module into the capacitive pen, and using two switch buttons to switch between writing and erasing functions, the problem of the limited functionality of existing capacitive pens is solved, and the flexibility and accuracy of using the capacitive pen are improved.
Patent Information
- Application Number
- CN202520449935.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-14
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-03-14
AI Technical Summary
Existing capacitive pens have limited functionality and are difficult to effectively eliminate writing or drawing errors.
Design a capacitive pen with an eraser function. Switch between writing and erasing functions through an electronic control module and two switch buttons. Use a soft conductive material as the erasing tip and combine the interaction between the electronic control module and the touch screen device to achieve function switching.
It enables quick switching to the eraser function when an error is detected, effectively eliminating writing or drawing mistakes and improving the flexibility and accuracy of use.
Smart Images
Figure CN223871045U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of capacitive pens, and more specifically, to a capacitive pen with an eraser function. Background Technology
[0002] A capacitive pen is a pen made of conductive materials that has conductive properties. It is used to interact with capacitive touchscreens to complete human-computer interaction. It is commonly used for writing and drawing on touchscreens (such as tablets and mobile phones). Most existing capacitive pens only have a single pen tip for writing or drawing, and their functions are relatively limited. When writing or drawing errors occur, users usually return to the menu to erase the errors. However, in many cases, users find it difficult to detect writing or drawing errors in time, and by the time they do, it is difficult to effectively erase the errors by returning to the menu. Therefore, this invention provides a capacitive pen with an eraser function. Utility Model Content
[0003] To address the problem that existing capacitive pens have limited functionality and cannot effectively erase writing or drawing errors, this invention provides a capacitive pen with an eraser function, comprising:
[0004] The pen tube comprises a writing tip, a wiping tip, and an electronic control module. The writing tip is detachably connected to one end of the pen tube, and the wiping tip is detachably connected to the other end of the pen tube. The electronic control module is detachably disposed within the pen tube. The electronic control module includes a first switch button and a second switch button fixedly disposed on the outer circumference of the pen tube. The writing tip includes a first contact portion, which is electrically connected to the electronic control module. The wiping tip includes a second contact portion, which is electrically connected to the electronic control module, and the second contact portion is made of a soft conductive material.
[0005] The capacitive stylus with eraser function includes a first working state and a second working state; wherein, the first working state includes: turning on the first switch button, the electronic control module energizes the first touch part and de-energizes the second touch part; the second working state includes: turning on the second switch button, the electronic control module de-energizes the first touch part and energizes the second touch part.
[0006] In some embodiments, the pen tube includes a tube body, a partition, a connecting tube, a first receiving cavity, and a second receiving cavity; the partition is fixedly connected to a portion of the outer surface of the tube body, dividing the internal chamber of the tube body into a first receiving cavity and a second receiving cavity; one end of the connecting tube is fixedly connected to the end face of the partition located in the first receiving cavity, and the other end extends into the first receiving cavity; a wire hole is provided on the partition; the wire hole connects the first receiving cavity and the second receiving cavity; the writing pen tip is connected to the tube body at the end of the first receiving cavity; the erasing pen tip is connected to the tube body at the end of the second receiving cavity; and the electronic control module is located within the first receiving cavity and the second receiving cavity.
[0007] In some embodiments, the writing pen tip further includes a first connecting portion and a first groove; the first contact portion is fixedly connected to one end of the first connecting portion; the other end of the first connecting portion is detachably connected to the tube body; the first groove is located inside the first connecting portion and is recessed inward along the axis of the first connecting portion, connecting to the inner surface of the first contact portion; the electronic control module is electrically connected to the inner surface of the first contact portion through the first groove.
[0008] In some embodiments, the wiping pen tip further includes a second connecting portion and a second groove; the second contact portion is fixedly connected to one end of the second connecting portion; the other end of the second connecting portion is detachably connected to the tube body; the second groove is recessed inward along the axis of the second connecting portion and connected to the inner surface of the second contact portion; the electronic control module is electrically connected to the inner surface of the second contact portion through the second groove.
[0009] In some embodiments, the electronic control module further includes a circuit board, a controller, a Bluetooth module, a conductive rod, a battery, a charging interface, and a power transmission line; the circuit board is disposed in the first receiving cavity and is detachably connected to the connecting tube; the controller and the Bluetooth module are disposed on the circuit board, and the controller is electrically connected to the Bluetooth module; one end of the conductive rod is electrically connected to the controller, and the other end abuts against the first contact portion; the battery is disposed in the second receiving cavity, and the battery is electrically connected to the controller and connected to the charging interface wire; the charging interface is disposed on a portion of the outer surface of the tube body; one end of the power transmission line is electrically connected to the controller, and the other end is fixedly connected to the second contact portion; the first switch button and the second switch button are respectively electrically connected to the controller.
[0010] In some embodiments, the first switch button is cylindrical in shape, and the second switch button is cube-shaped.
[0011] In some embodiments, the detachable connection between the writing pen tip and one end of the pen tube is a threaded connection or a snap-fit connection.
[0012] In some embodiments, the wiping pen tip is detachably connected to the other end of the pen tube by a threaded connection or a snap-fit connection.
[0013] In some embodiments, the soft conductive material is conductive rubber.
[0014] To address the problem that existing capacitive pens have limited functionality and cannot effectively erase writing or drawing errors, this invention offers the following advantages:
[0015] The electronic control module includes a first switch button and a second switch button fixedly disposed on the outer periphery of the pen tube; a first contact part is electrically connected to the electronic control module; the wiping pen tip includes a second contact part, which is electrically connected to the electronic control module, and the second contact part is made of a soft conductive material; by turning on the first switch button, the electronic control module powers on the first contact part and de-powers the second contact part, at which time the capacitive pen can write or draw. When it is necessary to erase writing or drawing errors, by turning on the second switch button, the electronic control module de-powers the first contact part and powers on the second contact part to switch to the wiping function, thereby realizing the erasure of writing or drawing errors. Attached Figure Description
[0016] Figure 1 A schematic diagram of the overall structure of a capacitive pen with an eraser function;
[0017] Figure 2 for Figure 1 An explosion diagram;
[0018] Figure 3 This is a plan view of the pen tube;
[0019] Figure 4 for Figure 3 Cross-sectional view along the AA direction;
[0020] Figure 5 This is a schematic diagram of the connection of a capacitive pen with an eraser function.
[0021] In the diagram: 10. Pen tube; 11. Tube body; 12. Partition; 13. Connecting tube; 14. First receiving cavity; 15. Second receiving cavity; 16. Wire hole; 20. Writing pen tip; 21. First connecting part; 22. First contact part; 23. First groove; 30. Erasing pen tip; 31. Second connecting part; 32. Second contact part; 33. Second groove; 40. Electronic control module; 41. Circuit board; 42. Controller; 43. Bluetooth module; 44. Conductive rod; 45. Battery; 46. First switch button; 47. Second switch button; 48. Charging interface; 49. Power supply line. Detailed Implementation
[0022] The present disclosure will now be discussed with reference to several exemplary embodiments. It should be understood that these embodiments are discussed only to enable those skilled in the art to better understand and thus implement the present disclosure, and are not intended to imply any limitation on the scope of the disclosure.
[0023] As used herein, the term "comprising" and its variations are to be interpreted as open-ended terms meaning "including but not limited to". The term "based on" is to be interpreted as "at least partially based on". The terms "one embodiment" and "an embodiment" are to be interpreted as "at least one embodiment". The term "another embodiment" is to be interpreted as "at least one other embodiment". The terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "vertical", "horizontal", "lateral", "longitudinal", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. These terms are primarily for the purpose of better describing this application and its embodiments and are not intended to limit the indicated devices, elements, or components to having a specific orientation or being constructed and operated in a specific orientation. Furthermore, some of the above terms may be used to indicate other meanings besides orientations or positional relationships; for example, the term "upper" may in some cases indicate a dependency or connection relationship. Those skilled in the art can understand the specific meaning of these terms in this application according to the specific circumstances. In addition, the terms "installed", "set up", "equipped with", "connected", and "linked" should be interpreted broadly. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, elements, or components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. Furthermore, the terms "first," "second," etc., are mainly used to distinguish different devices, elements, or components (the specific types and structures may be the same or different), and are not used to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise stated, "a plurality of" means two or more.
[0024] This embodiment discloses a capacitive pen with an eraser function, such as Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, it may include:
[0025] The pen tube 10 comprises a writing tip, an erasing tip 30, and an electronic control module 40. The writing tip is detachably connected to one end of the pen tube 10, and the erasing tip 30 is detachably connected to the other end of the pen tube 10. The electronic control module 40 is detachably disposed within the pen tube 10. The electronic control module 40 includes a first switch button 46 and a second switch button 47 fixedly disposed on the outer circumferential surface of the pen tube 10. The writing tip includes a first contact portion 22, which is electrically connected to the electronic control module 40. The erasing tip 30 includes a second contact portion 32, which is electrically connected to the electronic control module 40, and the second contact portion 32 is made of a soft conductive material.
[0026] The capacitive pen with eraser function includes a first working state and a second working state; wherein, the first working state includes: turning on the first switch button 46, the electronic control module 40 energizes the first touch part 22 and de-energizes the second touch part 32; the second working state includes: turning on the second switch button 47, the electronic control module 40 de-energizes the first touch part 22 and energizes the second touch part 32.
[0027] In this embodiment, the electronic control module 40 can wirelessly communicate with a touch screen device, which can be a tablet computer or a mobile phone, or a gas device or apparatus known to those skilled in the art that is applicable to this utility model. In this embodiment, the touch screen device is equipped with application software or an APP for interacting with the electronic control module 40, thereby enabling the interaction between the electronic control module 40 and the touch screen device. Specifically, when writing or drawing with the capacitive pen that has an eraser function, the first switch button 46 is turned on, the electronic control module 40 powers on the first touch part 22 and de-powers on the second touch part 32. Interacting with the touchscreen device via application software or an APP, the touchscreen device only provides feedback on the writing or drawing function of the capacitive stylus, allowing the first touch portion 22 to be used for writing or drawing. When it is necessary to erase errors in writing or drawing, or to erase the written or drawn content according to the user's wishes, the second switch button 47 is activated. The electronic control module 40 de-energizes the first touch portion 22 and energizes the second touch portion 32. The electronic control module 40 and the touchscreen device then interact via application software or an APP, so that the touchscreen device only provides feedback on the erasing function of the capacitive stylus, allowing the second touch portion 32 to be used to erase the written or drawn content. In this embodiment, since the second touch portion 32 is made of a conductive soft material, when the second touch portion 32 is squeezed during erasing, the display interface with the touchscreen device can be enlarged, thereby increasing the erasing range. The deformation of the second touch portion 32 can be adjusted according to the pressure applied by the user.
[0028] In some embodiments, such as Figure 2 , Figure 3 , Figure 4 As shown, the pen tube 10 includes a tube body 11, a partition 12, a connecting tube 13, a first receiving cavity 14, and a second receiving cavity 15. The partition 12 is fixedly connected to a portion of the outer surface of the tube body 11, dividing the internal chamber of the tube body 11 into the first receiving cavity 14 and the second receiving cavity 15. One end of the connecting tube 13 is fixedly connected to the end face of the partition 12 located in the first receiving cavity 14, and the other end extends into the first receiving cavity 14. A wire hole 16 is provided on the partition 12. The wire hole 16 connects the first receiving cavity 14 and the second receiving cavity 15. The writing pen tip is connected to the tube body 11 at the end of the first receiving cavity 14. The wiping pen tip 30 is connected to the tube body 11 at the end of the second receiving cavity 15. The electronic control module 40 is located in the first receiving cavity 14 and the second receiving cavity 15.
[0029] In this embodiment, the wire hole 16 is used for the connection between the first receiving cavity 14 and the second receiving cavity 15 to pass through.
[0030] In some embodiments, such as Figure 1 , Figure 2 , Figure 5 As shown,
[0031] The writing pen tip also includes a first connecting part 21 and a first groove 23; the first contact part 22 is fixedly connected to one end of the first connecting part 21; the other end of the first connecting part 21 is detachably connected to the tube body 11; the first groove 23 is located inside the first connecting part 21, and is recessed inward along the axis of the first connecting part 21 and connected to the inner surface of the first contact part 22; the electronic control module 40 is electrically connected to the inner surface of the first contact part 22 through the first groove 23.
[0032] In some embodiments, such as Figure 1 , Figure 2 , Figure 5 As shown,
[0033] The wiping pen tip 30 also includes a second connecting part 31 and a second groove 33; the second contact part 32 is fixedly connected to one end of the second connecting part 31; the other end of the second connecting part 31 is detachably connected to the tube body 11; the second groove 33 is recessed inward along the axis of the second connecting part 31 and connected to the inner surface of the second contact part 32; the electronic control module 40 is electrically connected to the inner surface of the second contact part 32 through the second groove 33.
[0034] In some embodiments, such as Figure 1 , Figure 2 , Figure 5 As shown, the electronic control module 40 further includes a circuit board 41, a controller 42, a Bluetooth module 43, a conductive rod 44, a battery 45, a charging interface 48, and a power transmission line 49. The circuit board 41 is disposed in the first receiving cavity 14 and is detachably connected to the connecting tube 13. The controller 42 and the Bluetooth module 43 are disposed on the circuit board 41, and the controller 42 is electrically connected to the Bluetooth module 43. One end of the conductive rod 44 is electrically connected to the controller 42, and the other end abuts against the first touch part 22. The battery 45 is disposed in the second receiving cavity 15, and the battery 45 is electrically connected to the controller 42 and wired to the charging interface 48. The charging interface 48 is disposed on part of the outer surface of the tube body 11. One end of the power transmission line 49 is electrically connected to the controller 42, and the other end is fixedly connected to the second touch part 32. The first switch button 46 and the second switch button 47 are respectively electrically connected to the controller 42.
[0035] In this embodiment, the controller 42 is a microcontroller module known to those skilled in the art, capable of controlling the Bluetooth module 43 to achieve wireless connection with the touchscreen device. The controller 42 can, as described above, power on or off the first touch portion 22 or the second touch portion 32 when the first switch button 46 or the second switch button 47 is turned on or off. In this embodiment, in some cases, the Bluetooth module 43 can also be replaced with a WIFI module. In this embodiment, the pen tube has holes (not shown in the figure) on its peripheral wall for electrical connection between the first and second switch buttons and the controller; this is a conventional feature in the art and will not be described in detail.
[0036] In some embodiments, such as Figure 1 As shown, the first switch button 46 is cylindrical in shape, and the second switch button 47 is cube in shape.
[0037] In this embodiment, by setting the first switch button 46 and the second switch button 47 to different shapes, it is easier for users to identify the first switch button 46 and the second switch button 47, and to quickly select writing or drawing, or to wipe.
[0038] In some embodiments, such as Figure 2 As shown, the detachable connection between the writing pen tip and one end of the pen tube 10 is a threaded connection or a snap-fit connection.
[0039] In some embodiments, such as Figure 2 As shown, the wiping pen tip 30 is detachably connected to the other end of the pen tube 10 by a threaded connection or a snap-fit connection.
[0040] In some embodiments, the soft conductive material is conductive rubber.
[0041] In this embodiment, the soft conductive material is preferably conductive rubber. However, in some cases, the soft conductive material may also be other soft materials known to those skilled in the art that are suitable for the present invention and have conductive functions.
[0042] The working principle of this utility model is as follows:
[0043] When writing or drawing with the capacitive stylus using the eraser function, the first switch button 46 is turned on, the electronic control module 40 powers the first touch part 22 and de-powers the second touch part 32. The electronic control module 40 interacts with the touch screen device through application software or APP. At this time, the touch screen device only provides feedback on the writing or drawing function of the capacitive stylus, so the first touch part 22 can be used for writing or drawing. When it is necessary to erase errors in writing or drawing, or to erase the writing or drawing content according to the user's wishes, the second switch button 47 is turned on, the electronic control module 40 de-powers the first touch part 22 and powers the second touch part 32, and the electronic control module 40 interacts with the touch screen device through application software or APP, so that the touch screen device only provides feedback on the erasing function of the capacitive stylus, so the second touch part 32 can be used to erase the writing or drawing content.
[0044] Those skilled in the art will understand that the above embodiments are specific examples of implementing this disclosure, and in practical applications, various changes can be made in form and detail without departing from the spirit and scope of this disclosure.
Claims
1. A capacitive stylus with an eraser function, characterized in that, include: Pen tube, writing pen tip, erasing pen tip, electronic control module; The writing pen tip is detachably connected to one end of the pen tube, and the wiping pen tip is detachably connected to the other end of the pen tube; The electronic control module is detachably disposed inside the pen tube; the electronic control module includes a first switch button and a second switch button fixedly disposed on the outer peripheral surface of the pen tube; the writing pen tip includes a first contact part; the first contact part is electrically connected to the electronic control module; the wiping pen tip includes a second contact part, the second contact part is electrically connected to the electronic control module, and the second contact part is made of a soft conductive material; The capacitive stylus with eraser function includes a first working state and a second working state; wherein, the first working state includes: turning on the first switch button, the electronic control module energizes the first touch part and de-energizes the second touch part; the second working state includes: turning on the second switch button, the electronic control module de-energizes the first touch part and energizes the second touch part.
2. A capacitive stylus with an eraser function according to claim 1, characterized in that, The pen tube includes a tube body, a partition, a connecting tube, a first receiving cavity, and a second receiving cavity. The partition is fixedly connected to a portion of the outer surface of the tube body, dividing the internal chamber of the tube body into the first receiving cavity and the second receiving cavity. One end of the connecting tube is fixedly connected to the end face of the partition located in the first receiving cavity, and the other end extends into the first receiving cavity. A wire hole is provided on the partition, which connects the first receiving cavity and the second receiving cavity. The writing pen tip is connected to the tube body at the end of the first receiving cavity. The erasing pen tip is connected to the tube body at the end of the second receiving cavity. The electronic control module is located in the first receiving cavity and the second receiving cavity.
3. A capacitive stylus with an eraser function according to claim 2, characterized in that, The writing pen tip also includes a first connecting part and a first groove; the first contact part is fixedly connected to one end of the first connecting part; the other end of the first connecting part is detachably connected to the tube body; the first groove is located inside the first connecting part, and is recessed inward along the axis of the first connecting part and connected to the inner surface of the first contact part; the electronic control module is electrically connected to the inner surface of the first contact part through the first groove.
4. A capacitive stylus with an eraser function according to claim 3, characterized in that, The wiping pen tip also includes a second connecting part and a second groove; the second contact part is fixedly connected to one end of the second connecting part; the other end of the second connecting part is detachably connected to the tube body; the second groove is recessed inward along the axis of the second connecting part and connected to the inner surface of the second contact part; the electronic control module is electrically connected to the inner surface of the second contact part through the second groove.
5. A capacitive stylus with an eraser function according to claim 4, characterized in that, The electronic control module further includes a circuit board, a controller, a Bluetooth module, a conductive rod, a battery, a charging interface, and a power transmission line. The circuit board is disposed within the first receiving cavity and is detachably connected to the connecting tube. The controller and the Bluetooth module are disposed on the circuit board, and the controller is electrically connected to the Bluetooth module. One end of the conductive rod is electrically connected to the controller, and the other end abuts against the first contact portion. The battery is disposed within the second receiving cavity, and the battery is electrically connected to the controller and connected to the charging interface wire. The charging interface is disposed on a portion of the outer surface of the tube body. One end of the power transmission line is electrically connected to the controller, and the other end is fixedly connected to the second contact portion. The first switch button and the second switch button are respectively electrically connected to the controller.
6. A capacitive stylus with an eraser function according to claim 1, characterized in that, The first switch button is cylindrical in shape, and the second switch button is cube in shape.
7. A capacitive stylus with an eraser function according to claim 1, characterized in that, The detachable connection between the writing pen tip and one end of the pen tube is a threaded connection or a snap-fit connection.
8. A capacitive stylus with an eraser function according to claim 1, characterized in that, The wiping pen tip is detachably connected to the other end of the pen tube by a threaded connection or a snap-fit connection.
9. A capacitive stylus with an eraser function according to claim 8, characterized in that, The soft conductive material is conductive rubber.