Touch pen

By designing through holes and openings on the circuit board, the problem of welding difficulties in the prior art is solved, and the manufacturing efficiency and production simplicity of the stylus are improved.

CN222801121UActive Publication Date: 2025-04-25SHENZHEN XINWEI INTELLIGENT TECH CO LTD
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Patent Information

Application Number
CN202421523872.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-06-28
Publication Date
2025-04-25
Estimated Expiration
2034-06-28

AI Technical Summary

Technical Problem

During the manufacturing process, existing stylus pens have difficulty in welding due to the large number of electronic components and small spacing, making the manufacturing process complex and inefficient.

Method used

The design circuit board has through holes and openings, and the welding tool can be directly welded from the side openings, simplifying the welding process.

Benefits of technology

Improves the manufacturing efficiency of the stylus, simplifies the welding process, and reduces production complexity.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a touch control pen, which comprises a circuit board and a touch control circuit, the circuit board comprises a bonding pad, the circuit board is provided with a through hole, the through hole penetrates along the thickness direction of the circuit board, the side surface of the thickness direction of the circuit board is provided with an opening, the opening is communicated with the through hole, and the hole wall of the through hole is provided with the bonding pad; and one end of the connecting piece is welded on the bonding pad. According to the utility model, the circuit board is provided with the through hole, the side surface of the circuit board is also provided with the opening, and the opening is communicated with the welding port, so that when the connecting piece is electrically connected with the circuit board, one end of the connecting piece can abut against the bonding pad, and then a welding tool can directly weld the connecting piece and the bonding pad from the opening; therefore, the electric connection between the connecting piece and the circuit board is realized. In this way, the touch pen can have high manufacturing efficiency.
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Description

Technical Field

[0001] The utility model relates to the technical field of touch pens, in particular to a touch pen. Background Art

[0002] In the related art, a stylus pen is also called an electronic pen. A stylus pen is an input device used to simulate a human finger touch operation on a digital screen or board. For example, a stylus pen can be used on a tablet, a laptop or other electronic devices with a touch screen.

[0003] The interior of the stylus pen is generally provided with electronic components such as a circuit board, a battery, and a sensor. The battery or other electronic components will be electrically connected to the circuit board. Taking the electrical connection between the battery and the circuit board as an example, the two ends of the battery are led out through wires and then welded to the pads of the circuit board, thus completing the electrical connection between the battery and the circuit board. Among them, since the number of electronic components in the stylus is large, when the circuit board is connected to multiple electronic components, due to the small spacing between the multiple electronic components, there will be insufficient space for the welding tool to weld it to the circuit board. Furthermore, this will cause the manufacturing process of the stylus to be more complicated and the manufacturing efficiency to be lower. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a touch pen that can have a higher manufacturing efficiency.

[0005] A touch pen according to an embodiment of the utility model includes:

[0006] A circuit board, comprising a pad, wherein the circuit board is provided with a through hole, the through hole penetrates along the thickness direction of the circuit board, the side surface of the circuit board in the thickness direction has an opening, the opening is connected to the through hole, wherein the pad is provided on the hole wall of the through hole;

[0007] A connecting piece, one end of which is welded to the welding pad.

[0008] The stylus pen according to the embodiment of the utility model has at least the following beneficial effects: a through hole is provided on the circuit board, wherein the side of the circuit board also has an opening, and the opening is connected to the welding port, so that when the connector and the circuit board are electrically connected, one end of the connector can abut against the pad, and then the welding tool can directly weld the connector and the pad from the opening, thereby achieving electrical connection between the connector and the circuit board. In the prior art, there is no design of through holes and openings on the circuit board, so the welding tool can only weld from the top or bottom of the circuit board, but due to limited space, it will lead to inconvenience in welding. In the present application, the welding tool can weld directly from the opening. In this way, the stylus pen can have higher manufacturing efficiency.

[0009] According to some embodiments of the stylus pen of the present invention, the stylus pen also includes a circuit component and a first bracket, the first bracket is connected to the circuit board, the first bracket has a placement groove, the circuit component is arranged in the placement groove, and the circuit component is electrically connected to the other end of the connector.

[0010] According to the stylus pen of some embodiments of the present invention, the first bracket is provided with a wire passing groove, the wire passing groove is communicated with the through hole, and part of the connecting member is arranged in the wire passing groove.

[0011] According to some embodiments of the stylus of the present invention, the stylus further includes a magnet group and a first bracket, the first bracket has a first receiving groove, and the magnet group is disposed in the first receiving groove.

[0012] According to some embodiments of the stylus of the present invention, the magnet group includes a first magnet, a second magnet and a third magnet, the second magnet is located between the first magnet and the third magnet, the S pole of the second magnet faces the first magnet, the N pole of the second magnet faces the third magnet, the N pole of the first magnet faces the bottom wall of the first accommodating groove, and the S pole of the third magnet faces the bottom wall of the first accommodating groove.

[0013] According to some embodiments of the stylus pen of the present invention, the stylus pen also includes a shielding member, which is used to shield or weaken the magnetic field. The shielding member is provided with a second accommodating groove, the shielding member is arranged in the first accommodating groove, and the magnet group is arranged in the second accommodating groove.

[0014] According to the stylus pen of some embodiments of the present invention, the shielding member is provided with a positioning portion, the first bracket is provided with a slot, and the positioning portion is arranged in the slot.

[0015] According to some embodiments of the stylus of the present utility model, the stylus also includes a shell, a pen cap and a battery compartment, the shell has a storage cavity, the battery compartment is used to place batteries, and the battery compartment is arranged in the storage cavity; the pen cap includes a first body part, a first protrusion and a second protrusion, the first protrusion and the second protrusion are both connected to the first body part, the first protrusion and the second protrusion are both protruding relative to the first body part, the first protrusion is sleeved on the periphery of the second protrusion, the first body part, the first protrusion and the second protrusion jointly define a first groove, the battery compartment includes a second body part and a third protrusion, the third protrusion is connected to the second body part, the third protrusion protrudes relative to the second body part, the second body part and the third protrusion jointly define a second groove, the pen cap is arranged in the storage cavity, the third protrusion is arranged in the first groove, the second protrusion is arranged in the second groove, and the third protrusion is bonded to the first protrusion and the second protrusion.

[0016] According to the stylus pen of some embodiments of the present invention, the maximum dimension of the through hole in the length direction or the width direction of the circuit board is L1, and 1mm≤L1≤2mm.

[0017] According to the stylus pen of some embodiments of the present invention, the through hole has a depth of L2, and 0.8 mm ≤ L2 ≤ 1 mm.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention is further described below with reference to the accompanying drawings and embodiments, wherein:

[0020] Figure 1 It is a partial schematic diagram of the touch pen of the first embodiment of the utility model;

[0021] Figure 2 Schematic diagram of a circuit board and a connector in a touch pen of some embodiments of the utility model;

[0022] Figure 3 It is a partial schematic diagram of a touch pen according to a second embodiment of the present utility model;

[0023] Figure 4 An exploded schematic diagram of a magnet group in a stylus pen in some embodiments of the utility model;

[0024] Figure 5 A partial exploded schematic diagram of a stylus pen according to some embodiments of the present invention;

[0025] Figure 6 It is a partial cross-sectional schematic diagram of a touch pen of some embodiments of the utility model;

[0026] Figure 7 Schematic diagram of a pen cap in a touch pen in some embodiments of the utility model;

[0027] Figure 8 Schematic diagram of a battery compartment in a stylus pen according to some embodiments of the present invention;

[0028] Fig. 9 Schematic top view of a circuit board in a touch pen according to some embodiments of the present invention.

[0029] Reference numerals:

[0030] Stylus pen 10, circuit board 100, through hole 110, opening 120, connector 200, circuit assembly 300, first bracket 400, placement slot 410, wire slot 420, first receiving slot 430, card slot 440, second bracket 500, magnet group 600, first magnet 610, second magnet 620, third magnet 630, shielding member 700, second receiving slot 710, positioning portion 720, shell 800, pen cap 900, first body portion 910, first protrusion 920, second protrusion 930, first slot 940, battery compartment 1000, second body portion 1100, third protrusion 1200, second slot 1300. DETAILED DESCRIPTION

[0031] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0032] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0033] In the description of the present utility model, "several" means more than one, "many" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used to distinguish the technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0034] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0035] In the description of the utility model, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0036] In the related art, the stylus pen 10 is also called an electronic pen. The stylus pen 10 is an input device used to simulate a human finger touch operation on a digital screen or board. For example, the stylus pen 10 can be used on a tablet, a laptop computer or other electronic devices with a touch screen.

[0037] The interior of the stylus pen 10 is generally provided with electronic components such as a circuit board 100, a battery, and a sensor. The battery or other electronic components are electrically connected to the circuit board 100. Taking the electrical connection between the battery and the circuit board 100 as an example, the two ends of the battery are led out through wires and then welded on the pads of the circuit board 100, so as to complete the electrical connection between the battery and the circuit board 100. Among them, since the number of electronic components of the stylus pen 10 is large, when the circuit board 100 is connected to multiple electronic components, due to the small spacing between the multiple electronic components, there will be insufficient space for the welding tool to conveniently weld it to the circuit board 100. That is, the welding tool will weld the electronic components and the pads from the top or bottom of the circuit board 100, but since there are electronic components above and below the circuit board 100, it will be inconvenient for the welding tool to weld. Further, this will cause the manufacturing process of the stylus pen 10 to be more complicated and the manufacturing efficiency to be low. To this end, the present application proposes a stylus pen 10.

[0038] Please refer to Figure 1 to Figure 2In some embodiments, the stylus pen 10 includes: a circuit board 100, a circuit assembly 300 and a connector 200. The circuit board 100 may also be referred to as a main board, which mainly serves as the control center of the stylus pen 10. The circuit board 100 may receive and send signals, etc. The circuit board 100 includes a solder pad, and the circuit board 100 is provided with a through hole 110, which passes through the circuit board 100 in the thickness direction. The side surface of the circuit board 100 in the thickness direction has an opening 120, and the opening 120 is connected to the through hole 110. That is, the through hole 110 is provided at the edge of the circuit board 100. For details, please refer to Fig. 9 , wherein the hole wall of the through hole 110 is provided with a pad (not shown in the figure), which is a metal sheet on the printed circuit board 100 for connecting electronic components to the PCB, usually round or square, and coated with tin or other tin-based alloy materials on the surface. Among them, the circuit assembly 300 includes a battery, a motor or a wireless charging coil, etc. The circuit assembly 300 is electrically connected to the circuit board 100 through the connector 200. One end of the connector 200 is welded to the pad, and the other end of the connector 200 is connected to the circuit assembly 300. The connector 200 can be a wire. Specifically, a through hole 110 is provided on the circuit board 100, wherein the side of the circuit board 100 also has an opening 120, and the opening 120 is connected to the welding port. In this way, when the connector 200 and the circuit board 100 are electrically connected, one end of the connector 200 can abut on the pad, and then the welding tool can directly weld the connector 200 and the pad from the opening 120, thereby realizing the electrical connection between the connector 200 and the circuit board 100. In the prior art, there is no through hole 110 and opening 120 on the circuit board 100, so the welding tool can only be welded from the top or bottom of the circuit board 100, but due to limited space, it is inconvenient to weld. In the present application, the welding tool can be welded directly from the opening 120. In other words, there are other parts on the top and bottom of the circuit board 100, but there are no other parts blocking the side of the circuit board 100, so the welding tool can be welded directly from the opening 120. In this way, the stylus 10 can have a higher manufacturing efficiency.

[0039] It should be noted that the number of the through holes 110 is not specifically limited, the shape of the through holes 110 can be square or circular, and the shape of the through holes 110 is not specifically limited either.

[0040] In addition, the stylus pen 10 further includes a housing 800 , which has a storage cavity, and the circuit board 100 , the circuit assembly 300 , and the connector 200 are all located in the storage cavity.

[0041] For further information, please refer to Figure 1 to Figure 2In some embodiments, the stylus pen 10 further includes a circuit assembly 300 and a first bracket 400. In addition to the circuit board 100, the stylus pen 10 further includes circuit assemblies 300 such as a battery, an electrode, an LED lamp, or a wireless charging coil, and these circuit assemblies 300 are electrically connected to the circuit board 100 through the connector 200. The first bracket 400 is connected to the circuit board 100, and the first bracket 400 has a placement groove 410, in which the circuit assembly 300 is disposed, and the circuit assembly 300 is electrically connected to the other end of the connector 200. After the first bracket 400 is connected to the circuit board 100, the circuit assembly 300 can be installed in the placement groove 410, and then the first bracket 400 can be placed in the storage cavity, which can facilitate the assembly of the stylus pen 10. In addition, the stylus 10 also includes a second bracket 500. The first bracket 400 and the second bracket 500 are respectively located on both sides of the circuit board 100, thereby clamping the circuit board 100 therebetween. This can protect the circuit board 100 when the circuit board 100 is in the storage cavity, and prevent the circuit board 100 from shaking and being damaged in the storage cavity.

[0042] Further, it is conceivable that after the first bracket 400 is loaded into the storage cavity, the first bracket 400 will abut against the cavity wall of the storage cavity to complete the fixation. Among them, when there is no gap between the first bracket 400 and the cavity wall of the storage cavity, it will be inconvenient for the connector 200 to pass through, so a wire groove 420 can be set on the first bracket 400 to solve this problem. For details, please refer to Figure 1 to Figure 2 In some embodiments, the first bracket 400 is provided with a wire groove 420, the wire groove 420 is communicated with the through hole 110, and part of the connector 200 is disposed in the wire groove 420. In this way, one end of the connector 200 is welded to the pad, and then the connector 200 passes through the wire groove 420, and then the other end of the connector 200 is connected to the circuit assembly 300.

[0043] For further information, please refer to Figure 3 In some embodiments, the stylus pen 10 further includes a magnet group 600 and a first bracket 400. The magnet group 600 is magnetic, so that the stylus pen 10 can be connected to an electronic device, such as a tablet or a laptop, by magnetism. Figure 5 The first bracket 400 has a first receiving groove 430, and the magnet group 600 is disposed in the first receiving groove 430. The magnet group 600 can be connected to the groove wall of the first receiving groove 430 by bonding. In addition, the magnet group 600 can also be clamped in the first receiving groove 430 by clamping.

[0044] Furthermore, the functions of the magnet group 600 are described above. In order to make the stylus pen 10 more firmly magnetically attracted to the electronic device, the magnetic force of the magnet group 600 can be increased. Figures 3 to 5 In some embodiments, the magnet group 600 includes a first magnet 610, a second magnet 620, and a third magnet 630. The first magnet 610, the second magnet 620, and the third magnet 630 are arranged along the length direction of the stylus pen 10, and the second magnet 620 is located between the first magnet 610 and the third magnet 630. The S pole of the second magnet 620 faces the first magnet 610, the N pole of the second magnet 620 faces the third magnet 630, the N pole of the first magnet 610 faces the bottom wall of the first receiving groove 430, and the S pole of the third magnet 630 faces the bottom wall of the first receiving groove 430. In this way, the arrangement of the first magnet 610, the second magnet 620, and the third magnet 630 can increase the magnetic force of the stylus pen 10 facing the electronic device, so that the stylus pen 10 can be firmly adsorbed on the electronic device. Among them, the principle of increasing the magnetic force by arranging the first magnet 610, the second magnet 620, and the third magnet 630 can refer to the Halbach array magnet, which will not be described in detail here. It should be added that the number of the magnet group 600 is not specifically limited, and the number of the magnet group 600 can be one, two, three or four, etc. After the first magnet 610, the second magnet 620 and the third magnet 630 in the magnet group 600 are arranged in the above arrangement, the total magnetism of the magnet group 600 can be N-pole or S-pole, and then attract each other with the S-pole or N-pole of the electronic device, so that the stylus 10 can be firmly adsorbed on the electronic device.

[0045] Furthermore, the magnet group 600 mentioned above can make the stylus 10 adsorbed on the electronic device, wherein the stylus 10 can be charged by wireless charging. Specifically, the circuit assembly 300 includes a wireless charging coil, and the wireless charging coil and the electronic device cooperate to generate current, and then the circuit board 100 processes the current and transmits it to the battery to charge the battery. Therefore, the magnet group 600 can also play a role in assisting the positioning of wireless charging. It should be noted that since the magnet group 600 is magnetic, the magnetic field generated by the magnet group 600 may affect the electronic components in the stylus 10, causing the stylus 10 to be unable to be used normally. In order to solve this problem, a shielding member 700 can be provided. For details, please refer to Figures 3 to 5In some embodiments, the stylus 10 further includes a shielding member 700. The shielding member 700 is used to shield or weaken the magnetic field, and the material of the shielding member 700 may be iron, cobalt, nickel, and alloy materials. The shielding member 700 is provided with a second receiving groove 710, the shielding member 700 is disposed in the first receiving groove 430, and the magnet group 600 is disposed in the second receiving groove 710. Specifically, the shielding member 700 includes a bottom surface and four side surfaces, and the four side surfaces are connected around the bottom surface to form the second receiving groove 710. After the magnet group 600 is placed in the second receiving groove 710, the shielding member 700 can effectively shield the magnetic field of the magnet group 600 toward components such as the circuit board 100, thereby effectively preventing the magnetic field from affecting the normal use of electronic components.

[0046] For further information, please refer to Figures 3 to 5 In some embodiments, the shielding member 700 is provided with a positioning portion 720, and the first bracket 400 is provided with a card slot 440, and the positioning portion 720 is arranged in the card slot 440. Specifically, the shape of the positioning portion 720 can be adapted to the shape of the card slot 440, for example, the shape of the positioning portion 720 is circular, and the shape of the card slot 440 is also circular. In this way, when the shielding member 700 is installed in the first receiving groove 430 on the first bracket 400, the shielding member 700 can be conveniently installed through the cooperation of the positioning portion 720 and the card slot 440. In addition, when two shielding members 700 and magnet groups 600 are provided, in order to maximize the magnetism of the two magnet groups 600, the first magnets 610 in the two magnet groups 600 can be close to each other. In this case, the problem of the wrong installation direction of the magnet group 600 can be effectively avoided by the setting of the positioning portion 720 and the card slot 440. There may be two positioning parts 720 , and the two positioning parts 720 have different shapes, so that it is convenient for humans or instruments to identify the magnet group 600 .

[0047] Further, the pen cap 900 and the battery compartment 1000 of the battery are described below. Figures 6 to 8In some embodiments, the stylus pen 10 further includes a housing 800, a cap 900, and a battery compartment 1000. The housing 800 has a storage cavity, the battery compartment 1000 is used to place the battery, the battery compartment 1000 is disposed in the storage cavity, and the cap 900 is used to close the opening 120 of the storage cavity. The cap 900 includes a first body portion 910, a first protrusion 920, and a second protrusion 930. The first protrusion 920 and the second protrusion 930 are both connected to the first body portion 910, the first protrusion 920 and the second protrusion 930 are both protruding relative to the first body portion 910, the first protrusion 920 is sleeved on the periphery of the second protrusion 930, and the first body portion 910, the first protrusion 920 and the second protrusion 930 jointly define a first groove 940. The shape of the first groove 940 may be annular. The battery compartment 1000 includes a second body portion 1100 and a third protrusion 1200. The third protrusion 1200 is connected to the second body part 1100, the third protrusion 1200 protrudes relative to the second body part 1100, and the second body part 1100 and the third protrusion 1200 jointly define a second groove 1300. The shape of the second groove 1300 may be annular. The pen cap 900 is disposed in the storage cavity, the third protrusion 1200 is disposed in the first groove 940, the second protrusion 930 is disposed in the second groove 1300, and the third protrusion 1200 is bonded to the first protrusion 920 and the second protrusion 930. Specifically, after the pen cap 900 is provided with the first groove 940 and the battery compartment 1000 is provided with the second groove 1300, when the second protrusion 930 is located in the second groove 1300 and the third protrusion 1200 is located in the first groove 940, this can increase the contact area between the pen cap 900 and the battery compartment 1000. After increasing the contact area between the pen cap 900 and the battery compartment 1000, by applying glue on the third protrusion 1200, the pen cap 900 can be more firmly bonded to the housing 800. In addition, since the above arrangement increases the reliability of the pen cap 900 connecting to the housing 800, the design can also effectively prevent liquid from entering the housing 800.

[0048] Further, in some embodiments, the maximum dimension of the through hole 110 in the length direction or width direction of the circuit board 100 is L1, 1mm≤L1≤2mm. The diameter of the through hole 110 may be circular, and the maximum dimension of the through hole 110 may be 1mm, 1.2mm, 1.5mm, 1.8mm or 2mm. Among them, when the maximum dimension of the through hole 110 is greater than 2mm, since the maximum dimension of the through hole 110 is too large, this will cause the space occupied by the through hole 110 on the circuit board 100 to be too large, thereby making the space on the circuit board 100 to accommodate other electronic components too small. When the maximum dimension of the through hole 110 is less than 1mm, since the maximum dimension of the through hole 110 is too small, on the one hand, it will be inconvenient to process the pad onto the hole wall of the through hole 110, and on the other hand, it will be inconvenient for the welding tool to work.

[0049] Further, in some embodiments, the hole depth of the through hole 110 is L2, 0.8mm≤L2≤1mm. Specifically, the hole depth of the through hole 110 is 0.8mm, 0.9mm, 0.95mm or 1mm. The hole depth of the through hole 110 is equivalent to the thickness of the circuit board 100. When the hole depth of the through hole 110 is greater than 1mm, this will cause the thickness of the circuit board 100 to be too large, thereby making the heat dissipation performance of the circuit board 100 poor. When the hole depth of the through hole 110 is less than 0.8mm, since the hole depth of the through hole 110 is small, the size of the pad required is also small, which will increase the difficulty of processing and the processing cost is too high.

[0050] The embodiments of the utility model are described in detail above in conjunction with the accompanying drawings, but the utility model is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in the relevant technical field without departing from the purpose of the utility model. In addition, the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.

Claims

1. A stylus pen, characterized in that: include: A circuit board, comprising a pad, wherein the circuit board is provided with a through hole, the through hole penetrates along the thickness direction of the circuit board, the side surface of the circuit board in the thickness direction has an opening, the opening is connected to the through hole, wherein the pad is provided on the hole wall of the through hole; A connecting piece, one end of which is welded to the welding pad.

2. The touch pen according to claim 1, characterized in that: The stylus pen further includes a circuit component and a first bracket, wherein the first bracket is connected to the circuit board, the first bracket has a placement groove, the circuit component is arranged in the placement groove, and the circuit component is electrically connected to the other end of the connector.

3. The touch pen according to claim 2, characterized in that: The first bracket is provided with a wire passing groove, the wire passing groove is communicated with the through hole, and part of the connecting member is arranged in the wire passing groove.

4. The touch pen according to claim 1, characterized in that: The stylus pen further includes a magnet group and a first bracket, the first bracket has a first receiving groove, and the magnet group is arranged in the first receiving groove.

5. The touch pen according to claim 4, characterized in that: The magnet group includes a first magnet, a second magnet and a third magnet, the second magnet is located between the first magnet and the third magnet, the S pole of the second magnet faces the first magnet, the N pole of the second magnet faces the third magnet, the N pole of the first magnet faces the bottom wall of the first receiving groove, and the S pole of the third magnet faces the bottom wall of the first receiving groove.

6. The touch pen according to claim 4, characterized in that: The stylus pen further includes a shielding member, which is used to shield or weaken the magnetic field. The shielding member is provided with a second receiving groove. The shielding member is arranged in the first receiving groove, and the magnet group is arranged in the second receiving groove.

7. The touch pen according to claim 6, characterized in that: The shielding member is provided with a positioning portion, the first bracket is provided with a slot, and the positioning portion is arranged in the slot.

8. The touch pen according to claim 1, characterized in that: The stylus pen also includes a shell, a pen cap and a battery compartment, the shell has a storage cavity, the battery compartment is used to place batteries, and the battery compartment is arranged in the storage cavity; the pen cap includes a first body part, a first protrusion and a second protrusion, the first protrusion and the second protrusion are both connected to the first body part, the first protrusion and the second protrusion are both protruding relative to the first body part, the first protrusion is sleeved on the periphery of the second protrusion, the first body part, the first protrusion and the second protrusion jointly define a first groove, the battery compartment includes a second body part and a third protrusion, the third protrusion is connected to the second body part, the third protrusion protrudes relative to the second body part, the second body part and the third protrusion jointly define a second groove, the pen cap is arranged in the storage cavity, the third protrusion is arranged in the first groove, the second protrusion is arranged in the second groove, and the third protrusion is bonded to the first protrusion and the second protrusion.

9. The touch pen according to claim 1, characterized in that: The maximum dimension of the through hole in the length direction or the width direction of the circuit board is L1, 1mm≤L1≤2mm.

10. The touch pen according to claim 1, characterized in that: The through hole has a depth of L2, 0.8 mm ≤ L2 ≤ 1 mm.