Capacitance pen with electrostatic protection

Abstract

The invention provides a capacitance pen with electrostatic protection, comprising: a pen body, one end of which is provided with a pen point assembly; the circuit assembly is used for outputting a coding signal to the pen point assembly; the circuit assembly is provided with a pressure sensor and a grounding end. The pen point assembly comprises a pen point and a refill, the first end of the refill is connected with the pen point, and the second end of the refill abuts against the pressure sensor; the conductive part is electrically connected with the refill and the grounding end; and the conductive part is used for forming a discharge path for discharging static electricity on the refill to the grounding end. The discharge path for discharging static electricity on the pen refill to the grounding end is formed through the conductive piece, electrostatic current generated by the pen point of the capacitance pen is safely discharged to the grounding end, strong electromagnetic field interference formed by the electrostatic current on the pen refill is avoided, meanwhile, the possible secondary discharge phenomenon is prevented, and the service life of the pen is prolonged. Therefore, electronic elements in the capacitance pen are prevented from being damaged, and the stability and safety of the capacitance pen in the using process are ensured.

Description

Technical Field

[0001] The invention relates to the technical field of capacitive pens, and in particular to a capacitive pen with electrostatic protection. Background Art

[0002] Electrostatic discharge (ESD) pulses are high-frequency pulse energy that takes the path of minimum impedance and generates electromagnetic field radiation. Isolated metal buttons / screws or metal panels will generate strong electromagnetic field radiation interference or even secondary discharge, thereby coupling ESD interference to PCB boards and cables. Electrostatic discharge is one of the hazards of current electronic products. It cannot be completely eradicated, but can only be channeled or shielded.

[0003] The traditional capacitive stylus works by writing directly on the tablet without considering the ESD generated. When the pen tip is subjected to ESD air discharge, the generated static current will enter the pen core along the gap of the pen tip, generating strong electromagnetic field interference, which may cause secondary discharge, thereby damaging the electronic components inside the capacitive stylus. Therefore, a capacitive stylus with electrostatic protection is needed. Summary of the invention

[0004] The main purpose of the present invention is to provide a capacitive stylus with electrostatic protection, aiming to solve the problem of electrostatic discharge damaging electronic components inside the capacitive stylus.

[0005] The present invention provides a capacitive stylus pen with electrostatic protection, comprising: A pen body, one end of which is provided with a pen tip assembly; A circuit assembly is disposed in the pen body, the circuit assembly is connected to the pen tip assembly, and is used to output a coding signal to the pen tip assembly; the circuit assembly has a pressure sensor and a ground terminal; The pen tip assembly comprises a pen tip and a pen core, wherein the pen core has a first end and a second end opposite to each other, the first end of the pen core is connected to the pen tip, and the second end of the pen core is in contact with the pressure sensor; A conductive member electrically connects the pen core and the ground terminal; the conductive member is used to form a discharge path for the static electricity on the pen core to be discharged to the ground terminal.

[0006] Optionally, the conductive member has a sleeve portion which is arranged in a spring-like manner, and the sleeve portion is sleeved on the pen core.

[0007] Optionally, the circuit assembly includes a main circuit board and a flexible circuit board, the pressure sensor is arranged on one side of the flexible circuit board, and is electrically connected to the main circuit board through the flexible circuit board; The conductive member also has a connecting portion, the grounding end is arranged on the side of the flexible circuit board facing away from the pressure sensor, the connecting portion is arranged on the side of the flexible circuit board facing away from the pressure sensor to contact and electrically connect with the grounding end, and the connecting portion is connected to the sleeve portion.

[0008] Optionally, a limiting portion is provided on the pen core, and one end of the sleeve portion facing the connecting portion elastically abuts against the limiting portion, the connecting portion is arranged in a spring shape, and the connecting portion elastically abuts against a side of the flexible circuit board facing away from the pressure sensor.

[0009] Optionally, the pen body includes a pen case and a bracket, the bracket is installed in the pen case, and the circuit assembly and the nib assembly are installed on the bracket; an insulating wrapping layer is provided at a position corresponding to the pen case and the pen case; or, the pen body includes a pen case and a bracket, the bracket is installed in the pen case, and the circuit assembly and the nib assembly are installed on the bracket; an insulating wrapping layer is provided at a position corresponding to the pen case and the pen case, and the insulating wrapping layer extends to the wrapping part of the pen tip and is sealed and connected to the wrapping part.

[0010] Optionally, the pen body includes a pen case and a bracket, the bracket is installed in the pen case, and the circuit component and the pen tip component are installed on the bracket; the position of the pen case corresponding to the pen tip is set to an insulating material.

[0011] Optionally, the pen core is sequentially arranged as a first connecting section and an insulating section along a direction from the pen tip to the pressure sensor, the pen tip is connected to the first connecting section, and the insulating section abuts against the pressure sensor.

[0012] Optionally, one end of the insulating segment is connected to the first connecting segment via a spring member.

[0013] Optionally, a section of the first connecting section away from the pen tip is provided with a receiving hole, the spring member is provided in the receiving hole, and one end of the insulating section is limited in the receiving hole and abuts against one end of the spring member.

[0014] Optionally, a first distance is provided between the pressure sensor and the pen core, and a length of the first distance is not less than 1 mm.

[0015] The present invention forms a discharge path for the static electricity on the pen core to be discharged to the ground end through a conductive member, and the static electricity current generated by the tip of the capacitive pen is safely discharged to the ground end, thereby avoiding the static electricity current from forming a strong electromagnetic field interference on the pen core, and preventing possible secondary discharge phenomena, thereby avoiding damage to electronic components inside the capacitive pen, and ensuring the stability and safety of the capacitive pen during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0017] Figure 1 This is a diagram of the internal structure of a capacitive stylus with electrostatic protection according to the present invention; Figure 2 Another internal structure diagram of a capacitive stylus with electrostatic protection according to the present invention; Figure 3 This is a static discharge path diagram of a capacitive stylus with static protection according to the present invention; Figure 4 This is a structural diagram of a pen core of a capacitive pen with electrostatic protection according to the present invention; Figure 5 The present invention is a pen tip structure diagram of a capacitive pen with electrostatic protection.

[0018]

[0019] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0021] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0022] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] In addition, in the present invention, descriptions such as "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0024] The present invention provides a capacitive stylus with electrostatic protection, such as Figure 1 and Figure 2 As shown, including: A pen body, one end of which is provided with a pen tip assembly 1; The circuit assembly 2 is arranged in the pen body, and the circuit assembly 2 is connected to the pen tip assembly 1, and is used to output a coding signal to the pen tip assembly 1; the circuit assembly 2 has a pressure sensor 21 and a ground terminal; The pen tip assembly 1 includes a pen tip 11 and a pen core 12. The pen core 12 has a first end and a second end opposite to each other. The first end of the pen core 12 is connected to the pen tip 11, and the second end of the pen core 12 is in contact with the pressure sensor 21. The conductive member 3 electrically connects the pen core 12 and the ground terminal; the conductive member 3 is used to form a discharge path for the static electricity on the pen core 12 to be discharged to the ground terminal.

[0025] In the present invention, the capacitive pen and the electronic device are transmitted via Bluetooth. The capacitive pen is equipped with a Bluetooth module, which can convert the analog signal generated during handwriting or drawing into a digital signal. The converted digital signal is wirelessly transmitted to the paired electronic device via Bluetooth technology. Compared with electromagnetic induction transmission, Bluetooth technology has undergone multiple iterations, and power consumption has been greatly reduced. In addition, Bluetooth transmission technology is mature, highly stable, and data transmission is accurate and reliable.

[0026] More specifically, the circuit assembly 2 of the present invention is provided with a pressure sensor 21, which is used to detect the pressure applied by the user on the pen tip 11. When the user applies different pressures, the pressure sensor 21 will generate corresponding electrical signal changes, which can adjust the thickness or color depth of the pen stroke according to the pressure applied by the user, making writing and drawing more natural and realistic. The pressure sensor 21 transmits to the paired electronic device via Bluetooth.

[0027] During the use of the capacitive pen, the capacitive pen tip 11 may be charged with static electricity due to friction, contact or induction. When the capacitive pen tip 11 is charged with static electricity, if the humidity of the surrounding environment is low or there is no good grounding condition, the static electricity will accumulate on the tip 11. When the capacitive pen tip 11 is discharged by static electricity in the air, the generated static electricity current will enter the pen core 12 along the gap of the tip 11.

[0028] like Figure 3 As shown, this is because the pen tip 11 is usually made of conductive material, and the gap provides a path for the electrostatic current to enter the pen core 12. When the electrostatic current propagates in the pen core 12, it will generate strong electromagnetic field interference, which may cause secondary discharge. The second end of the pen core 12 abuts against the pressure sensor 21, and the secondary discharge may damage the pressure sensor 21.

[0029] Therefore, the present invention is provided with a conductive member 3, which forms a discharge path for the static electricity on the pen core 12 to be discharged to the ground end, and the static electricity current generated by the capacitive pen tip 11 is safely discharged to the ground end, so as to avoid the static electricity current from forming a strong electromagnetic field interference on the pen core 12, and prevent the possible secondary discharge phenomenon, thereby avoiding damage to the electronic components inside the capacitive pen, and ensuring the stability and safety of the capacitive pen during use.

[0030] In one embodiment, if Figure 2 As shown, the conductive member 3 has a sleeve portion 31 arranged in a spring-like manner, and the sleeve portion 31 is sleeved on the pen core 12. In this embodiment, the conductive member 3 is arranged on the pen core 12 through the sleeve portion 31 arranged in a spring-like manner, which can ensure good contact with the pen core 12 or the conductive member 3, thereby forming a stable conductive path.

[0031] In order to meet the writing habits and ensure good contact with the writing surface, the capacitive stylus is generally set in a cylindrical shape, and the pen core 12 is also set in a cylindrical shape accordingly. Compared with other shapes, such as conductive sheets, conductive needles, etc., the spring-shaped sleeve portion 31 sleeved on the pen core 12 has better contact performance and adaptability.

[0032] The spring-shaped sleeve portion 31 achieves multi-point contact with the pen core 12, thereby increasing the stability and reliability of the contact. The spring-shaped sleeve portion 31 has a certain elasticity and can be adaptively adjusted according to the slight deformation or position change of the pen core 12. In addition, the spring-shaped sleeve portion 31 also has a certain buffering effect. When the capacitive pen is subjected to unexpected impact or vibration, the sleeve portion 31 can absorb part of the energy and protect the pen core 12 from external impact or vibration.

[0033] In one embodiment, the circuit assembly 2 includes a main circuit board and a flexible circuit board 22, and the pressure sensor 21 is disposed on one side of the flexible circuit board 22 and is electrically connected to the main circuit board through the flexible circuit board 22; The conductive member 3 also has a connecting portion 32 , and the grounding end is arranged on the side of the flexible circuit board 22 facing away from the pressure sensor 21 , and the connecting portion 32 is arranged on the side of the flexible circuit board 22 facing away from the pressure sensor 21 to contact and electrically connect with the grounding end, and the connecting portion 32 is connected to the socket portion 31 .

[0034] More specifically, as the core part of the circuit assembly 2, the main circuit board carries various electronic components and connecting lines, which are used to realize various functions of the capacitive stylus. The main circuit board has a stable structure and good conductive properties; the flexible circuit board 22 (FPC) is a circuit board that can be bent and folded, and is used to connect the main circuit board and the pressure sensor 21.

[0035] The pressure sensor 21 is disposed on one side of the flexible circuit board 22, and is electrically connected to the main circuit board through the conductive line on the flexible circuit board 22. More specifically, the flexible circuit board 22 is in contact with the connecting portion 32 by exposing the ground end. The pressure sensor 21 is used to detect the pressure applied by the pen tip 11 to the writing surface when the user is using it, and converts the pressure into an electrical signal, which is transmitted to the matching electronic device through the Bluetooth module on the main circuit board.

[0036] In this embodiment, the electrostatic current flows from the pen tip 11 to the pen core 12. Due to its characteristic of taking the path of minimum impedance, the electrostatic current will flow from the sleeve portion 31 that contacts the pen core 12 at multiple points to the connecting portion 32, and then be discharged through the connecting portion 32 to the grounding end that contacts the connecting portion 32.

[0037] As an active capacitive stylus, the circuit assembly 2 of the present invention further includes a battery, a charging chip and a USB charging port. The capacitive stylus is electrically connected to the charging chip via the USB charging port, and then the charging chip is electrically connected to the battery, and the battery supplies power to the circuit assembly.

[0038] Based on the above embodiments, Figure 2As shown, a limiting portion 123 is provided on the pen core 12 of this embodiment, and one end of the sleeve portion 31 facing the connecting portion 32 elastically abuts against the limiting portion 123. The connecting portion 32 is arranged in a spring shape, and the connecting portion 32 elastically abuts against the side of the flexible circuit board 22 facing away from the pressure sensor 21.

[0039] More specifically, the second end of the pen core 12 abuts against the pressure sensor 21, the end of the sleeve portion 31 facing the connecting portion 32 elastically abuts against the limiting portion 123, and at the same time, the connecting portion 32 elastically abuts against the side of the flexible circuit board 22 facing away from the pressure sensor 21, and the sleeve portion 31 and the connecting portion 32 of the conductive member 3 elastically abut against the two sides of the pressure sensor 21 at the second end respectively, and the conductive member 3 as a whole presents a clamping state.

[0040] This clamping state not only ensures that the conductive element 3 is firmly installed in the pen body, but also ensures good electrical connection between it and other components, so that the conductive element 3 can be fixed on the pen core 12 and the flexible circuit board 22 without welding, which is convenient for the replacement of the internal components of the capacitive pen at a later time.

[0041] In one embodiment, if Figure 2 and Figure 5 As shown, the pen body includes a pen shell 5 and a bracket 4, the bracket 4 is installed in the pen shell 5, and the circuit component 2 and the pen tip component 1 are installed on the bracket 4; an insulating wrapping layer 111 is provided at a position corresponding to the pen shell 5; or, the pen body includes a pen shell 5 and a bracket 4, the bracket 4 is installed in the pen shell 5, and the circuit component 2 and the pen tip component 1 are installed on the bracket 4; an insulating wrapping layer 111 is provided at a position corresponding to the pen shell 5, and the insulating wrapping layer 111 extends to the wrapping part of the pen tip 11 and is sealed and connected to the wrapping part.

[0042] The bracket 4 is installed inside the pen case 5 as a supporting structure for the circuit assembly 2 and the pen tip assembly 1, ensuring that the circuit assembly 2 and the pen tip assembly 1 will not loosen or fall off due to vibration or external force when the capacitive pen is used. The bracket 4 can also protect the circuit assembly 2, preventing the circuit assembly 2 from being damaged by external impact or extrusion, thereby extending the service life of the capacitive pen. The design of the bracket 4 usually takes into account the heat dissipation requirements of the circuit assembly 2, and ensures that the circuit assembly 2 can be effectively cooled during operation through reasonable layout and ventilation design.

[0043] In this embodiment, the insulating wrapping layer 111 of both schemes is set at the position corresponding to the pen tip 11 and the pen shell 5. The insulating wrapping layer 111 forms an electrical isolation layer, so that the electrostatic current generated by the capacitive pen pen tip 11 cannot enter the pen core 12 along the gap between the pen tip 11 and the pen shell 5. The cooperation between the insulating wrapping layer 111 and the conductive member 3 can prevent the electrostatic current from damaging the pressure sensor 21 to a large extent. Different from the first scheme, the insulating wrapping layer 111 of the second scheme not only covers the position corresponding to the pen tip 11 and the pen shell 5, but also further extends to the wrapping part of the pen tip 11 and forms a sealed connection with the wrapping part. This extended design provides more comprehensive electrical isolation and further reduces the possibility of electrostatic current entering the pen core 12 through other pathways.

[0044] In one embodiment, the pen body includes a pen case 5 and a bracket 4, the bracket 4 is installed in the pen case 5, and the circuit component 2 and the pen tip component 1 are installed on the bracket 4; the position of the pen case 5 corresponding to the pen tip 11 is set to an insulating material.

[0045] In this embodiment, the function of the bracket 4 is the same as that of the previous embodiment. The difference is that the position of the pen shell 5 corresponding to the pen tip 11 is set to an insulating material. The pen shell 5, as the main part of the capacitive stylus, not only provides protection and support, but also achieves insulation treatment of the position of the pen tip 11 through specific material selection. By applying the insulating material to a specific position of the pen shell 5, an electrical isolation layer can be formed, which effectively blocks the possibility of electrostatic current or other electrical interference being transmitted to the internal circuit of the capacitive stylus through the pen shell 5.

[0046] In one embodiment, if Figure 4 As shown, the pen core 12 is sequentially arranged as a first connecting section 121 and an insulating section 122 along the direction from the pen tip 11 to the pressure sensor 21 . The pen tip 11 is connected to the first connecting section 121 , and the insulating section 122 is in contact with the pressure sensor 21 .

[0047] The pen tip 11 of the capacitive stylus is inserted into the pen core 12. Through the connection between the pen tip 11 and the pen core 12, the electrostatic current will flow from the pen tip 11 to the pen core 12. Therefore, the position where the pen core 12 abuts against the pressure sensor 21 needs to be made of insulating material.

[0048] Therefore, the pen core 12 is divided into a first connecting section 121 and an insulating section 122. The limiting portion 123 is arranged on the first connecting section 121. The insulating section 122 abuts against the pressure sensor 21 to provide electrical isolation to prevent static current or other electrical interference from being directly transmitted to the pressure sensor 21 through the first connecting section 121.

[0049] Based on the above embodiment, one end of the insulating section 122 is connected to the first connecting section 121 through the spring member 125. The spring member 125 plays a role of buffering and connecting here, and it can absorb and disperse the impact force received by the pen tip 11 during writing or drawing, thereby protecting the circuit component 2 inside the pen core 12 from damage. At the same time, when the capacitive pen is subjected to external impact, such as falling, the spring member 125 can further play its buffering role, and it can absorb and disperse the impact force generated during the falling process, preventing the insulating section 122 from directly hitting and damaging the pressure sensor 21.

[0050] Based on the above embodiment, a section of the first connecting section 121 away from the pen tip 11 is provided with a receiving hole 124, a spring member 125 is provided in the receiving hole 124, and one end of the insulating section 122 is limited in the receiving hole 124 and abuts against one end of the spring member 125. By introducing the receiving hole 124 and the spring, the insulating section 122 can move in the receiving hole 124, one end of the insulating section 122 is limited in the receiving hole 124, and the insulating section 122 can move in the receiving hole 124 to a certain extent, but at the same time will not completely leave the receiving hole 124. This limiting design ensures a stable connection between the insulating section 122 and the first connecting section 121, and also allows the insulating section 122 to have a certain amount of room for movement when subjected to external force.

[0051] Based on the above embodiment, a first distance is set between the pressure sensor 21 and the refill 12 , and the length of the first distance is not less than 1 mm. The first distance is an insulation distance, more specifically, the distance between the strong electromagnetic field generated by the electrostatic current and the pressure sensor 21 .

[0052] In this embodiment, there are the following methods to ensure that the length of the first interval is not less than 1 mm, thereby increasing the distance between the strong electromagnetic field and the pressure sensor 21 .

[0053] In combination with the above embodiments, the first solution is as follows: a receiving hole 124 is provided at a section of the first connecting section 121 away from the pen tip 11, a spring member 125 is provided in the receiving hole 124, one end of the insulating section 122 is limited in the receiving hole 124 and abuts against one end of the spring member 125, the length of the insulating section 122 is not less than 1 mm, and the distance between the strong electromagnetic field and the pressure sensor 21 is not less than 1 mm; Solution 2: The first connecting section 121 and the insulating section 122 are both made of insulating materials, and the distance between the strong electromagnetic field and the pressure sensor 21 is not less than 1 mm.

[0054] The influence of strong electromagnetic fields on the pressure sensor 21 is mainly reflected in data anomalies, unstable measurement signals, etc. This is because strong magnetic fields interfere with the components and working circuits of the pressure sensor 21, resulting in degradation of sensor performance, including data distortion, zero drift, and reduced sensitivity. In this embodiment, the length of the first spacing is set to be no less than 1 mm to reduce the interference of strong electromagnetic fields on the pressure sensor 21.

[0055] The above descriptions are only optional embodiments of the present invention, and are not intended to limit the patent scope of the present invention. All equivalent structural changes made using the contents of the present invention's specification and drawings, or directly / indirectly applied in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A capacitive stylus pen with electrostatic protection, characterized in that: include: A pen body, one end of which is provided with a pen tip assembly; A circuit assembly is disposed in the pen body, the circuit assembly is connected to the pen tip assembly, and is used to output a coding signal to the pen tip assembly; the circuit assembly has a pressure sensor and a ground terminal; The pen tip assembly comprises a pen tip and a pen core, wherein the pen core has a first end and a second end opposite to each other, the first end of the pen core is connected to the pen tip, and the second end of the pen core is in contact with the pressure sensor; A conductive member electrically connects the pen core and the ground terminal; the conductive member is used to form a discharge path for the static electricity on the pen core to be discharged to the ground terminal.

2. The capacitive stylus pen with electrostatic protection according to claim 1, characterized in that: The conductive member has a sleeve connection portion which is arranged in a spring-like manner, and the sleeve connection portion is sleeved on the pen core.

3. The capacitive stylus pen with electrostatic protection according to claim 2, characterized in that: The circuit assembly includes a main circuit board and a flexible circuit board, the pressure sensor is arranged on one side of the flexible circuit board, and is electrically connected to the main circuit board through the flexible circuit board; The conductive member also has a connecting portion, the grounding end is arranged on the side of the flexible circuit board facing away from the pressure sensor, the connecting portion is arranged on the side of the flexible circuit board facing away from the pressure sensor to contact and electrically connect with the grounding end, and the connecting portion is connected to the sleeve portion.

4. The capacitive stylus pen with electrostatic protection according to claim 3, characterized in that: The pen core is provided with a limiting portion, one end of the sleeve portion facing the connecting portion is elastically in contact with the limiting portion, the connecting portion is arranged in a spring shape, and the connecting portion is elastically in contact with a side of the flexible circuit board facing away from the pressure sensor.

5. The capacitive stylus pen with electrostatic protection according to claim 1, characterized in that: The pen body includes a pen case and a bracket, the bracket is installed in the pen case, and the circuit assembly and the pen tip assembly are installed on the bracket; an insulating wrapping layer is provided at the position corresponding to the pen tip and the pen case; or, the pen body includes a pen case and a bracket, the bracket is installed in the pen case, and the circuit assembly and the pen tip assembly are installed on the bracket; an insulating wrapping layer is provided at the position corresponding to the pen tip and the pen case, and the insulating wrapping layer extends to the wrapping part of the pen tip and is sealed and connected to the wrapping part.

6. The capacitive stylus pen with electrostatic protection according to claim 1, characterized in that: The pen body includes a pen case and a bracket, the bracket is installed in the pen case, and the circuit component and the pen tip component are installed on the bracket; the position of the pen case corresponding to the pen tip is set to an insulating material.

7. The capacitive stylus pen with electrostatic protection according to any one of claims 1 to 4, characterized in that: The pen core is sequentially arranged as a first connecting section and an insulating section along a direction from the pen tip to the pressure sensor. The pen tip is connected to the first connecting section, and the insulating section abuts against the pressure sensor.

8. The capacitive stylus pen with electrostatic protection according to claim 7, characterized in that: One end of the insulating section is connected to the first connecting section via a spring member.

9. The capacitive stylus pen with electrostatic protection according to claim 8, characterized in that: A section of the first connecting section away from the pen tip is provided with an accommodating hole, the spring component is arranged in the accommodating hole, one end of the insulating section is limited in the accommodating hole and abuts against one end of the spring component.

10. The capacitive stylus pen with electrostatic protection according to any one of claims 1 to 6, characterized in that: A first distance is provided between the pressure sensor and the pen core, and a length of the first distance is not less than 1 mm.

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