Active capacitive pen with multi-function roller

CN224758997UActive Publication Date: 2026-09-15YKSONG PEN IND TECH R&D CENT SHENZHEN CO LTD
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Patent Information

Application Number
CN202522303614.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-30
Publication Date
2026-09-15
Estimated Expiration
2035-10-30

AI Technical Summary

Technical Problem

[0005]本实用新型的目的在于提供一种带有多功能滚轮的主动式电容笔,以解决背景技术中触摸功能会有很大概率导致误触以及失灵的问题

Benefits of technology

[0023] 1. The roller assembly of this utility model extends through the pen tube to the outside, allowing users to directly roll or press it with their fingers without relying on the touch function which is prone to accidental touches. The magnetic block and the iron plate work together to achieve automatic reset of the roller assembly. Pressing and releasing it will restore the initial position without manual adjustment. Furthermore, the signal detection module integrated into the roller assembly can realize three quick functions: page turning up and down, single click to confirm, and double click to take a screenshot. This meets the efficient operation needs of mobile office, design creation and other scenarios, and improves the efficiency of use.

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Abstract

The utility model discloses a kind of active capacitive stylus with multifunctional roller, it is related to capacitive stylus technical field, this active capacitive stylus with multifunctional roller includes pen body protection component, support fixed component, roller function component, circuit control component and power supply charging component;The pen body protection component includes pen tube and pen cap, the pen tube is hollow long barrel structure, the pen cap is detachably set in the top end of pen tube.The roller assembly of the utility model extends to outside through pen tube, user can directly use finger to scroll or press operation, without relying on the touch function of easy misfire;Magnetic attraction piece and iron sheet cooperate to realize the automatic reset of roller assembly, loosen after pressing, and initial position can be restored, without manual adjustment, and the signal detection module integrated in roller assembly can realize three major quick functions of up and down page turning, single-click confirmation, double-click screenshot, meet the efficient operation demand under the scene of mobile office, design creation etc., improve use efficiency.
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Description

Technical Field

[0001] This utility model relates to the field of capacitive pen technology, specifically an active capacitive pen with a multi-functional roller. Background Technology

[0002] A capacitive pen is a pen made of conductive materials that has conductive properties and is used to touch capacitive screens to complete human-computer interaction. The capacitive pen is an auxiliary device that uses conductive materials to mimic the human body to complete human-computer interaction. With the development of APP, today's capacitive pens are no longer simply a replacement for finger operation functions. More and more professionals have tried using active capacitive pens to work on mobile devices.

[0003] With the development of tablet technology, people's demand for capacitive pens is increasing. It's not just for writing and drawing; people are increasingly pursuing speed and convenience in products. Currently, capacitive pens on the market only have simple writing and drawing functions and touch functions. However, touch functions have a high probability of causing accidental touches and malfunctions.

[0004] Based on this, an active capacitive pen with a multi-functional scroll wheel is now provided, which can eliminate the drawbacks of existing devices. Utility Model Content

[0005] The purpose of this invention is to provide an active capacitive pen with a multi-functional scroll wheel to solve the problem that touch functions in the background technology are likely to cause accidental touches and malfunctions.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An active capacitive pen with a multi-functional scroll wheel includes a pen body protection component, a bracket fixing component, a scroll wheel function component, a circuit control component, and a power supply and charging component;

[0008] The pen body protection component includes a pen tube and a pen cap. The pen tube is a hollow long cylindrical structure, and the pen cap is detachably fitted onto the top of the pen tube.

[0009] The bracket fixing assembly includes a lower bracket and an upper bracket, which are fastened together along the length of the pen tube to form an integrated main bracket, and the whole is located inside the pen tube; the lower bracket is integrated with a buckle, a cylindrical hole and a mounting part, and one end of the mounting part is provided with a mounting groove; the upper bracket is integrated with a slot and a positioning post, and a magnetic block is installed on one side of the upper bracket; the buckle is adapted to engage with the slot, and the positioning post is adapted to insert into the cylindrical hole;

[0010] The roller functional component includes a roller assembly, an iron sheet, and a button. The roller assembly is installed by fitting and mounting the mounting component through a mounting groove. The iron sheet is installed on one side of the roller assembly and is fitted with a magnetic block. The inner wall of the button is installed on the side end of the roller assembly.

[0011] The circuit control component includes a main board, a sub-board and a pen tip. The main board and the sub-board are respectively located at the front end and the rear end of the lower bracket. The pen tip is connected to the main board.

[0012] The power supply and charging assembly includes a battery, a charging interface, and a baffle. The baffle engages with the middle of the lower bracket, the battery is fixed between the baffles and electrically connected to the main board, and the charging interface is fixed to the tail end of the lower bracket and electrically connected to the sub-board.

[0013] Based on the above technical solutions, this utility model also provides the following optional technical solutions:

[0014] In one alternative: the buckle is an elastic protrusion structure, with at least two spaced apart along the length of the lower bracket; the cylindrical hole is a circular through hole, with four spaced apart along the circumferential direction of the tail end of the lower bracket; the slot is a groove adapted to the shape of the buckle; the positioning post is a cylindrical protrusion adapted to the diameter of the cylindrical hole, and the buckle and slot, and the positioning post and cylindrical hole are all in one-to-one correspondence.

[0015] In one alternative: the magnetic block is a permanent magnet, the iron sheet is a rectangular metal sheet, the magnetic block and the iron sheet are positioned correspondingly, when the roller assembly is pressed, the iron sheet moves away from the magnetic block, when the roller assembly is released, the magnetic block attracts the iron sheet and drives the roller assembly to reset.

[0016] In one alternative: the button is electrically connected to the motherboard. When the scroll wheel assembly is pressed, the scroll wheel assembly drives the button to trigger synchronously. After being released, the button returns to its initial state along with the scroll wheel assembly.

[0017] In one alternative: the front end of the motherboard is integrated with three square protrusions, and the pen tip is a conductive material tapered structure, welded to the three square protrusions, with the pen tip passing through the bottom of the lower bracket and extending out of the pen tube.

[0018] In one alternative: the baffle is a rectangular plate structure, with two arranged parallel to each other along the length of the lower bracket, forming a receiving space between them; the battery is placed in the receiving space, and the positive and negative terminals are soldered to the main board through wires; the tail end of the lower bracket is provided with an interface fixing structure, and the charging interface is snapped into the interface fixing structure, with the pins soldered to the sub-board.

[0019] In one alternative: the scroll wheel assembly integrates a signal detection module, which is electrically connected to the main board via wires, and has the functions of triggering page turning by scrolling, triggering confirmation by clicking a button, and triggering screenshot by double-clicking a button; the sub-board is electrically connected to the main board via wires.

[0020] In one alternative: the motherboard is a rectangular circuit board with symmetrical grooves on both sides of its width direction. During assembly, the motherboard is engaged with the lower bracket via the grooves on both sides, thereby fixing the motherboard to the lower bracket. The motherboard has a mounting groove extending through its thickness in the middle along its length direction, and the inner wall contour of the mounting groove is adapted to the outer wall contour of the roller assembly.

[0021] In one alternative: the upper bracket and the pen tube are provided with through holes at corresponding positions, the diameter of the through holes is adapted to the end diameter of the roller assembly, and the roller assembly passes through the upper bracket and the pen tube through the two through holes respectively.

[0022] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0023] 1. The roller assembly of this utility model extends through the pen tube to the outside, allowing users to directly roll or press it with their fingers without relying on the touch function which is prone to accidental touches. The magnetic block and the iron plate work together to achieve automatic reset of the roller assembly. Pressing and releasing it will restore the initial position without manual adjustment. Furthermore, the signal detection module integrated into the roller assembly can realize three quick functions: page turning up and down, single click to confirm, and double click to take a screenshot. This meets the efficient operation needs of mobile office, design creation and other scenarios, and improves the efficiency of use.

[0024] 2. This utility model has strong structural stability. The bracket fixing component is connected by double adaptation of buckles and slots, positioning posts and cylindrical holes, so that the lower bracket and the upper bracket are firmly fastened and not easy to loosen. The baffle stabilizes and fixes the battery, ensuring that the position of each component is stable when working, and reducing the operation error caused by loose parts. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0026] Figure 2 This is a schematic diagram of the installation structure of the upper and lower brackets of this utility model.

[0027] Figure 3 This is a schematic diagram of the battery mounting structure of this utility model.

[0028] Figure 4 This is a schematic diagram of the roller assembly installation structure of this utility model.

[0029] Figure label annotations: 1. Pen tube; 2. Lower bracket; 3. Upper bracket; 4. Buckle; 5. Slot; 6. Cylindrical hole; 7. Positioning post; 8. Main board; 9. Mounting component; 10. Mounting slot; 11. Roller assembly; 12. Pen tip; 13. Baffle; 14. Battery; 15. Sub-board; 16. Charging interface; 17. Button; 18. Pen cap; 19. Magnetic block; 20. Metal sheet. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0031] In one embodiment, such as Figures 1-4 As shown, an active capacitive pen with a multi-functional scroll wheel includes a pen body protection component, a bracket fixing component, a scroll wheel function component, a circuit control component, and a power supply and charging component.

[0032] The pen body protection component includes a pen tube 1 and a pen cap 18. The pen tube 1 is a hollow long cylindrical structure, and the pen cap 18 is detachably sleeved on the top of the pen tube 1.

[0033] The bracket fixing assembly includes a lower bracket 2 and an upper bracket 3, which are fastened together along the length of the pen tube 1 to form an integrated main bracket, and the whole assembly is located inside the pen tube 1; the lower bracket 2 is integrally provided with a buckle 4, a cylindrical hole 6 and a mounting part 9, and one end of the mounting part 9 is provided with a mounting groove 10; the upper bracket 3 is integrally provided with a slot 5 and a positioning post 7, and a magnetic block 19 is installed on one side of the upper bracket 3; the buckle 4 is adapted to engage with the slot 5, and the positioning post 7 is adapted to insert into the cylindrical hole 6;

[0034] The roller functional component includes a roller assembly 11, an iron sheet 20 and a button 17. The roller assembly 11 is adapted to the mounting component 9 through the mounting groove 10. The iron sheet 20 is installed on one side of the roller assembly 11 and is adapted to the magnetic block 19. The inner wall of the button 17 is installed on the side end of the roller assembly 11.

[0035] The circuit control component includes a main board 8, a sub-board 15 and a pen tip 12. The main board 8 and the sub-board 15 are respectively disposed at the front end and the rear end of the lower bracket 2, and the pen tip 12 is connected to the main board 8.

[0036] The power supply and charging assembly includes a battery 14, a charging interface 16, and a baffle 13. The baffle 13 engages with the middle part of the lower bracket 2. The battery 14 is fixed between the baffles 13 and electrically connected to the main board 8. The charging interface 16 is fixed to the tail end of the lower bracket 2 and electrically connected to the sub-board 15.

[0037] In this embodiment, the scroll wheel assembly 11 extends through the pen tube 1 to the outside, allowing users to directly scroll or press it with their fingers without relying on the touch function which is prone to accidental touches. The magnetic block 19 and the iron plate 20 work together to enable the scroll wheel assembly 11 to automatically reset. After pressing and releasing, it returns to its initial position without manual adjustment. Furthermore, the signal detection module integrated into the scroll wheel assembly 11 enables three quick functions: page turning, single click confirmation, and double click screenshot, meeting the efficient operation needs of mobile office, design creation, and other scenarios, and improving usage efficiency. The structure has strong stability. The bracket fixing assembly is connected by the double adaptation of the buckle 4 and the slot 5, and the positioning post 7 and the cylindrical hole 6, making the lower bracket 2 and the upper bracket 3 firmly fastened and not easy to loosen. The baffle 13 stably fixes the battery 14, ensuring that the position of each component is stable during operation and reducing operation errors caused by loose parts.

[0038] In one embodiment, such as Figure 2 and Figure 3 As shown, the buckle 4 is an elastic protrusion structure, with at least two spaced apart along the length of the lower bracket 2; the cylindrical hole 6 is a circular through hole, with four spaced apart along the circumferential direction of the tail end of the lower bracket 2; the slot 5 is a groove adapted to the shape of the buckle 4; the positioning post 7 is a cylindrical protrusion adapted to the diameter of the cylindrical hole 6, and the buckle 4 and slot 5, and the positioning post 7 and cylindrical hole 6 are all in one-to-one correspondence, which facilitates the installation or removal of the upper bracket 3 and the lower bracket 2.

[0039] In one embodiment, such as Figure 3 and Figure 4As shown, the magnetic block 19 is a permanent magnet, and the iron sheet 20 is a rectangular metal sheet. The magnetic block 19 and the iron sheet 20 are positioned correspondingly. When the roller assembly 11 is pressed, the iron sheet 20 moves away from the magnetic block 19. When the roller assembly 11 is released, the magnetic block 19 attracts the iron sheet 20, causing the roller assembly 11 to reset. The button 17 is electrically connected to the motherboard 8. When the roller assembly 11 is pressed, the roller assembly 11 triggers the button 17 synchronously. After being released, the button 17 resets to its initial state. The upper bracket 3 and the pen tube 1 each have corresponding through holes. The diameter of the through holes is adapted to the end diameter of the roller assembly 11. The roller assembly 11 passes through the upper bracket 3 and the pen tube 1 through two through holes respectively. The motherboard 8 is a rectangular circuit board with symmetrical grooves on both sides of its width direction. During assembly, the motherboard 8 is engaged with the lower bracket 2 via the grooves on both sides, thus fixing the motherboard 8 to the lower bracket 2. A through groove extending through the thickness of the motherboard 8 is formed in the middle of the motherboard 8 along its length direction. The inner contour of the through groove matches the outer contour of the roller assembly 11. When the roller assembly 11 is pressed, the roller assembly 11 will drive the button 17 to be triggered synchronously, and the iron piece 20 moves away from the magnetic block 19 along with the roller assembly 11. After the roller assembly 11 is released, the magnetic block 19 generates an attraction force on the iron piece 20, pulling the roller assembly 11 to reset, and the button 17 also returns to its initial state.

[0040] In one embodiment, such as Figure 1 and Figure 3 As shown, the front end of the motherboard 8 is integrated with three square protrusions. The pen tip 12 is a conductive material conical structure, which is welded to the three square protrusions. The tip of the pen tip 12 passes through the bottom end of the lower bracket 2 and extends out of the pen tube 1. The pen tip 12 can touch the capacitive screen to realize the writing and drawing functions.

[0041] In one embodiment, such as Figure 2 and Figure 3 As shown, the baffle 13 is a rectangular plate structure, with two arranged parallel to each other along the length of the lower bracket 2, forming a receiving space between them; the battery 14 is placed in the receiving space, and the positive and negative terminals are soldered to the main board 8 through wires; the lower bracket 2 has an interface fixing structure at its tail end, and the charging interface 16 is snapped into the interface fixing structure, with its pins soldered to the sub-board 15. The battery 14 supplies power to the main board 8 of the circuit control component, the sub-board 15, and the roller assembly 11 of the roller function component through wires, providing working power for the entire capacitive pen.

[0042] In one embodiment, such as Figure 3 and Figure 4As shown, the scroll wheel assembly 11 integrates a signal detection module, which is electrically connected to the main board 8 via wires. It has the functions of triggering page turning by scrolling, confirming by clicking button 17, and triggering screenshot by double-clicking button 17. The sub-board 15 is electrically connected to the main board 8 via wires. When the user scrolls the scroll wheel assembly 11 extending outside the pen tube 1, the encoder in the signal detection module rotates synchronously with the scroll wheel. During the encoder's rotation, pulse signals are generated and transmitted to the main board 8 in real time via wires. The main board 8 analyzes the number and frequency of the pulse signals, generates page turning instructions based on the analysis results, and sends the instructions to the external power supply. The device enables page turning; when the user needs to confirm the operation, clicking the scroll wheel component 11 causes the button 17 to trigger a single electrical signal. The signal detection module captures this single electrical signal and quickly transmits it to the motherboard 8. The motherboard 8 interprets it as a confirmation command and sends it to the external capacitor device, completing the single-click confirmation function; when the user needs to take a screenshot, double-clicking the scroll wheel component 11 causes the button 17 to generate two consecutive electrical signals. The signal detection module recognizes these consecutive electrical signals and transmits them to the motherboard 8. The motherboard 8 interprets them as a screenshot command and sends it to the external capacitor device, ultimately realizing the double-click screenshot function.

[0043] The above embodiment discloses an active capacitive pen with a multi-functional scroll wheel. Firstly, the battery 14 of the power supply and charging component supplies power to the main board 8, sub-board 15, scroll wheel assembly 11, and button 17 of the circuit control component via wires, providing operating power for the entire capacitive pen. In the bracket fixing component, the lower bracket 2 and the upper bracket 3 are connected by the matching snap-fit ​​of the buckle 4 and the slot 5, and the matching insertion of the positioning post 7 and the cylindrical hole 6, forming an integrated main bracket that provides a stable mounting base for other components. The mounting part 9 integrated into the lower bracket 2 has a mounting groove 10 at one end providing a mounting track for the scroll wheel assembly 11. The permanent magnet-type magnetic block 19 installed on one side of the upper bracket 3 provides magnetic force for the reset of the scroll wheel assembly 11. Meanwhile, the through holes opened at the corresponding positions of the upper bracket 3 and pen tube 1 allow the roller assembly 11 to pass through and extend to the outside of the pen tube 1, facilitating user operation. In the circuit control assembly, the main board 8 is fixed to the front end of the lower bracket 2 by the grooves on both sides of the width direction and the buckles 4. The three integrated square protrusions at its front end are used to weld the conductive tapered pen tip 12. The tip of the pen tip 12 passes through the bottom end of the lower bracket 2 and extends out of the pen tube 1, enabling writing and drawing functions by touching the capacitive screen. The sub-board 15 is fixed to the tail end of the lower bracket 2 and is electrically connected to the main board 8 through wires to transmit data signals and power. The interface fixing structure at the tail end of the lower bracket 2 is used to snap on the charging interface 16. The pins of the charging interface 16 are soldered to the sub-board 15. When an external power supply is connected... The battery 14 can be charged via the sub-board 15 and the main board 8. Two rectangular baffles 13 of the power supply and charging assembly are parallel to each other along the length of the lower bracket 2, forming a space to hold and fix the battery 14, ensuring stable power supply to the battery 14. A rectangular metal sheet 20 installed on one side of the roller assembly 11 corresponds to and is magnetically compatible with the magnetic block 19 of the upper bracket 3. Simultaneously, a button 17 installed on the inner wall of the side end of the roller assembly 11 is electrically connected to the main board 8. When the roller assembly 11 is pressed, the roller assembly 11 will trigger the button 17 synchronously, and the metal sheet 20 will move away from the magnetic block 19 along with the roller assembly 11. After releasing the roller assembly 11, the magnetic block 19 will attract the metal sheet 20, pulling the roller assembly 11 back to its original position, and the button 17 will also... Then it returns to the initial state; when the user scrolls to the scroll wheel assembly 11 extending outside the pen tube 1, the encoder in the signal detection module will rotate synchronously with the scroll wheel. During the rotation of the encoder, a pulse signal is generated. The pulse signal is transmitted to the main board 8 in real time through the wire. The main board 8 analyzes the number and frequency of the pulse signal, generates up and down page turning instructions based on the analysis results, and sends the instructions to the external capacitor device, thereby realizing the up and down page turning function; when the user needs to confirm the operation, click the scroll wheel assembly 11. The scroll wheel assembly 11 drives the button 17 to trigger a single electrical signal. After the signal detection module captures the single electrical signal, it quickly transmits it to the main board 8. The main board 8 parses it into a confirmation instruction and sends it to the external capacitor device to complete the click confirmation function;When a user needs to take a screenshot, double-clicking the scroll wheel component 11 causes the scroll wheel component 11 to drive the button 17, generating two consecutive electrical signals. The signal detection module identifies these consecutive electrical signals and transmits them to the motherboard 8. The motherboard 8 interprets these signals as a screenshot command and sends them to the external capacitor device, ultimately achieving the double-click screenshot function.

[0044] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. An active capacitive pen with a multi-functional scroll wheel, characterized in that, Includes pen body protection components, bracket fixing components, roller function components, circuit control components, and power supply and charging components; The pen body protection component includes a pen tube (1) and a pen cap (18). The pen tube (1) is a hollow long cylindrical structure, and the pen cap (18) is detachably sleeved on the top of the pen tube (1). The bracket fixing assembly includes a lower bracket (2) and an upper bracket (3), which are fastened together along the length of the pen tube (1) to form an integrated main bracket, and the whole is located inside the pen tube (1); the lower bracket (2) is integrated with a buckle (4), a cylindrical hole (6) and a mounting part (9), and one end of the mounting part (9) is provided with a mounting groove (10); the upper bracket (3) is integrated with a slot (5) and a positioning post (7), and a magnetic block (19) is installed on one side of the upper bracket (3). The buckle (4) is adapted to engage with the slot (5), and the positioning post (7) is adapted to insert into the cylindrical hole (6); The roller functional component includes a roller assembly (11), an iron plate (20), and a button (17). The roller assembly (11) is adapted to the mounting component (9) through the mounting groove (10). The iron plate (20) is installed on one side of the roller assembly (11) and is adapted to the magnetic block (19). The inner wall of the button (17) is installed on the side end of the roller assembly (11). The circuit control component includes a main board (8), a sub-board (15) and a pen tip (12). The main board (8) and the sub-board (15) are respectively located at the front end and the rear end of the lower bracket (2). The pen tip (12) is connected to the main board (8). The power supply and charging assembly includes a battery (14), a charging interface (16), and a baffle (13). The baffle (13) engages with the middle of the lower bracket (2). The battery (14) is fixed between the baffles (13) and electrically connected to the main board (8). The charging interface (16) is fixed to the tail end of the lower bracket (2) and electrically connected to the sub-board (15).

2. The active capacitive pen with a multi-functional roller according to claim 1, characterized in that, The buckle (4) is an elastic protrusion structure, with at least two arranged at intervals along the length of the lower bracket (2); the cylindrical hole (6) is a circular through hole, with four arranged at intervals along the circumferential direction of the tail end of the lower bracket (2); the slot (5) is a groove adapted to the shape of the buckle (4); the positioning post (7) is a cylindrical protrusion adapted to the diameter of the cylindrical hole (6), and the buckle (4) and the slot (5), and the positioning post (7) and the cylindrical hole (6) are all in one-to-one correspondence.

3. An active capacitive pen with a multi-functional roller according to claim 1, characterized in that, The magnetic block (19) is a permanent magnet, and the iron sheet (20) is a rectangular metal sheet. The magnetic block (19) and the iron sheet (20) are positioned correspondingly. When the roller assembly (11) is pressed, the iron sheet (20) moves away from the magnetic block (19). When the roller assembly (11) is released, the magnetic block (19) attracts the iron sheet (20) and drives the roller assembly (11) to reset.

4. An active capacitive pen with a multi-functional roller according to claim 1, characterized in that, The button (17) is electrically connected to the motherboard (8). When the scroll wheel assembly (11) is pressed, the scroll wheel assembly (11) drives the button (17) to be triggered synchronously. After being released, the scroll wheel assembly (11) resets and returns to its initial state.

5. An active capacitive pen with a multi-functional roller according to claim 1, characterized in that, The motherboard (8) has three square protrusions integrated at the front end. The pen tip (12) is a conductive material cone structure, which is welded to the three square protrusions. The tip of the pen tip (12) passes through the bottom of the lower bracket (2) and extends out of the pen tube (1).

6. An active capacitive pen with a multi-functional roller according to claim 1, characterized in that, The baffle (13) is a rectangular plate structure, and two of them are arranged parallel to each other along the length of the lower bracket (2), forming a receiving space between them; the battery (14) is placed in the receiving space, and the positive and negative terminals are welded to the main board (8) through wires; the lower bracket (2) has an interface fixing structure at its tail end, and the charging interface (16) is snapped into the interface fixing structure, with its pins welded to the sub-board (15).

7. An active capacitive pen with a multi-functional roller according to claim 1, characterized in that, The scroll wheel assembly (11) integrates a signal detection module and is electrically connected to the main board (8) via wires. It has the functions of scrolling to trigger page turning, clicking the button (17) to trigger confirmation, and double-clicking the button (17) to trigger screenshot. The sub-board (15) is electrically connected to the main board (8) via wires.

8. An active capacitive pen with a multi-functional roller according to claim 1, characterized in that, The main board (8) is a rectangular circuit board with grooves symmetrically provided on both sides of its width direction. During assembly, the main board (8) is engaged with the buckle (4) integrated with the lower bracket (2) through the grooves on both sides to achieve fixed installation of the main board (8) and the lower bracket (2). The middle part of the main board (8) has a mounting groove that penetrates the thickness of the main board (8) along its length direction. The inner wall contour of the mounting groove is adapted to the outer wall contour of the roller assembly (11).

9. An active capacitive pen with a multi-functional roller according to claim 1, characterized in that, The upper bracket (3) and the pen tube (1) are provided with through holes at corresponding positions. The diameter of the through holes is adapted to the end diameter of the roller assembly (11). The roller assembly (11) passes through the upper bracket (3) and the pen tube (1) through the two through holes respectively.