Electronic pen and touch device

Abstract

The utility model discloses an electronic pen and touch equipment, and belongs to the technical field of terminals.The electronic pen comprises a shell assembly and a pressure sensing module, the shell assembly is provided with a containing cavity, and one end of the shell assembly is provided with a pen point; the pressure sensing module is arranged in the containing cavity and comprises a force transmission shaft, an elastic piece and a plurality of strain sensors, the force transmission shaft is connected with the pen point, the elastic piece comprises a plurality of elastic pieces, the elastic pieces are arranged around the force transmission shaft, every two adjacent elastic pieces are connected with each other, part of the elastic pieces are connected with the shell assembly, and part of the elastic pieces are connected with the force transmission shaft; and at least two elastic sheets are respectively provided with a strain sensor. According to the electronic pen, the elastic pieces are arranged around the force transmission shaft, and the strain sensors are arranged on at least two elastic pieces, so that the force in different directions borne by the pen point of the electronic pen is detected, and the sensing sensitivity of the electronic pen to the force in different directions is improved.

Description

Technical Field

[0001] This application belongs to the technical field of terminals, and particularly relates to an electronic pen and a touch device. Background Art

[0002] Existing electronic pens generally include a pen shaft, a pen tip, a pressure sensing module, etc. The electronic pen can monitor the pressure change at the tip of the pen through the pressure sensing component, and then realize the recognition of user input. When the tip of the touch pen acts on the intelligent device, the tip of the pen can move along the axial direction of the pen shaft under the action of pressure, and the tip can act on the elastic sheet during the movement, so that the elastic sheet deforms. At present, the pressure sensing module structure of the electronic pen has insufficient sensitivity to forces in different directions and is difficult to meet the use requirements. Utility Model Content

[0003] Utility Model Purpose: The embodiments of this application provide an electronic pen, aiming to overcome the technical problem that the existing electronic pen has insufficient sensitivity to forces in different directions; another purpose of the embodiments of this application is to provide a touch device.

[0004] Technical Solution: The embodiments of this application provide an electronic pen, including:

[0005] A shell component, provided with a receiving cavity, and one end of the shell component is provided with a pen tip;

[0006] A pressure sensing module, which is arranged in the receiving cavity and includes: a force transmission shaft, an elastic member, and a plurality of strain sensors. The force transmission shaft is connected to the pen tip. The elastic member includes a plurality of elastic pieces, and the plurality of elastic pieces are arranged around the force transmission shaft. Each adjacent two of the elastic pieces are connected to each other. Among the plurality of elastic pieces, some of the elastic pieces are connected to the shell component, some of the elastic pieces are connected to the force transmission shaft, and at least two of the elastic pieces are each provided with one of the strain sensors.

[0007] In some embodiments, the elastic piece includes a bearing portion and a connecting portion connected to each other. The connecting portion is arranged on a side of the bearing portion away from the force transmission shaft. The strain sensor is arranged on the bearing portion. The connecting portion of some of the elastic pieces is located on a side of the bearing portion away from the pen tip and is connected to the shell component. The connecting portion of some of the elastic pieces is located on a side of the bearing portion facing the pen tip and is connected to the force transmission shaft.

[0008] In some embodiments, the force transmission shaft includes a shaft body and a plurality of support arms. The plurality of support arms are arranged around the shaft body and connected to the shaft body. Some of the elastic pieces are connected to the support arms.

[0009] In some embodiments, the housing assembly includes a housing body and an inner tube connected to each other. The housing body has the accommodation cavity, the inner tube is disposed in the accommodation cavity, the force transmission shaft passes through the inner tube, and a part of the elastic pieces is connected to the inner tube.

[0010] In some embodiments, a relief groove is formed on the outer peripheral wall of the inner tube, and the support arm is partially received in the relief groove and connected to a part of the elastic pieces.

[0011] In some embodiments, among two adjacent elastic pieces, one is connected to the housing assembly and the other is connected to the force transmission shaft.

[0012] In some embodiments, a plurality of the elastic pieces are arranged uniformly around the force transmission shaft and are arranged in pairs correspondingly.

[0013] In some embodiments, a relief hole is formed by enclosing a plurality of the elastic pieces, the force transmission shaft passes through the relief hole, and there is a gap between the force transmission shaft and the elastic pieces.

[0014] In some embodiments, the electronic pen further includes an elastic reset member. The elastic reset member is disposed in the accommodation cavity, and one end thereof is connected to the housing assembly and the other end is connected to the force transmission shaft;

[0015] The elastic reset member is configured to generate elastic deformation to be able to reset the force transmission shaft when the force transmission shaft deflects relative to the housing assembly.

[0016] In some embodiments, the electronic pen further includes a flexible circuit board. The flexible circuit board is disposed in the accommodation cavity. The flexible circuit board is provided with a through hole, the force transmission shaft passes through the through hole, and the flexible circuit board and the elastic member jointly clamp the strain sensor.

[0017] In some embodiments, the elastic member has a first wall surface and a second wall surface facing away from each other along the axial direction of the force transmission shaft, and the first wall surface and the second wall surface are arranged in a staggered manner. The elastic member is connected to the housing assembly through the first wall surface and connected to the force transmission shaft through the second wall surface.

[0018] This application also discloses a touch device, including the electronic pen as described in the above embodiments.

[0019] Beneficial effects: The electronic pen in the embodiments of the present application includes a shell assembly and a pressure sensing module. The shell assembly is provided with a receiving cavity, and a pen tip is provided at one end of the shell assembly; the pressure sensing module is disposed in the receiving cavity and includes: a force transmission shaft, an elastic member, and a plurality of strain sensors. The force transmission shaft is connected to the pen tip. The elastic member includes a plurality of elastic pieces, and the plurality of elastic pieces are arranged around the force transmission shaft and are connected to each other between adjacent elastic pieces. Among the plurality of elastic pieces, some elastic pieces are connected to the shell assembly, some elastic pieces are connected to the force transmission shaft, and at least two elastic pieces are each provided with a strain sensor. By arranging a plurality of elastic pieces around the force transmission shaft and arranging strain sensors on at least two elastic pieces, the forces in different directions received at the pen tip of the electronic pen can be detected, so as to improve the sensing sensitivity of the electronic pen to forces in different directions.

[0020] The touch device disclosed in the embodiments of the present application includes the electronic pen as described in the above embodiments, and thus can have all the technical features and technical effects of the above electronic pen, which will not be elaborated herein. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the drawings in the following description are only some embodiments of the present application. For those skilled in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0022] Figure 1 is an exploded structural schematic diagram of an electronic pen in the embodiments of the present application;

[0023] Figure 2 is a structural schematic diagram of a pressure sensing module of an electronic pen in the embodiments of the present application, and a flexible circuit board is also shown in the figure;

[0024] Figure 3 is a three-dimensional structural schematic diagram of an electronic pen in the embodiments of the present application, and the shell body is hidden in the figure;

[0025] Figure 4 is a front view structural schematic diagram of an electronic pen in the embodiments of the present application, and the shell body is hidden in the figure;

[0026] Figure 5 is Figure 4 a cross-sectional view in the A-A direction in

[0027] Figure 6 is a left view structural schematic diagram of an electronic pen in the embodiments of the present application, and the shell body is hidden in the figure;

[0028] Figure 7 is for Figure 6 a cross-sectional view in the B-B direction in

[0029] Figure 8 Schematic three-dimensional structure diagram of an elastic member of an electronic pen in an embodiment of the present application;

[0030] Figure 9 Schematic top view structure diagram of an elastic member of an electronic pen in an embodiment of the present application;

[0031] Reference numerals: 1, housing assembly; 10, accommodation cavity; 2, pen tip; 3, pressure sensing module; 31, force transmission shaft; 32, elastic member; 33, strain sensor; 321, elastic sheet; 3211, bearing portion; 3212, connecting portion; 311, shaft body; 312, support arm; 11, housing body; 12, inner tube; 120, avoidance groove; 320, avoidance hole; 3200, gap; 4, flexible circuit board; 40, through hole; 5, elastic reset member. Detailed implementation manners

[0032] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts belong to the scope of protection of the present application.

[0033] In the description of the present application, it should be understood that the orientation or positional relationship indicated by terms such as "upper", "lower", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application. In the description of the present application, "a plurality" means two or more, and at least one means one, two or more, unless otherwise specifically defined.

[0034] As a preface to the embodiments of the present application, an electronic pen generally includes a pen barrel, a pen tip, a pressure sensing module, etc. The electronic pen can monitor the pressure change at the tip of the pen through the pressure sensing component, so as to realize the recognition of user input. When the tip of the touch pen acts on the intelligent device, the tip of the pen can move along the axial direction of the pen barrel under the action of pressure, and the tip can act on the elastic sheet during the movement, so that the elastic sheet deforms. At present, the pressure sensing module structure of the electronic pen has low sensitivity to forces in different directions, resulting in the inability to accurately transmit the user's operation signal and difficult to meet the user's needs.

[0035] In view of this, an embodiment of the present application provides an electronic pen, aiming to solve at least one of the above technical problems.

[0036] Please refer to Figures 1 to 9As shown in the figure, an embodiment of the present application provides an electronic pen, which includes a shell assembly 1 and a pressure sensing module 3; wherein, the shell assembly 1 is provided with a receiving cavity 10, and a nib 2 is provided at one end of the shell assembly 1; the pressure sensing module 3 is disposed in the receiving cavity 10 and includes: a force transmission shaft 31, an elastic member 32, and a plurality of strain sensors 33. The force transmission shaft 31 is connected to the nib 2. The elastic member 32 includes a plurality of elastic pieces 321. The plurality of elastic pieces 321 are arranged around the force transmission shaft 31, and each adjacent two elastic pieces 321 are connected to each other. Among the plurality of elastic pieces 321, some elastic pieces 321 are connected to the shell assembly 1, some elastic pieces 321 are connected to the force transmission shaft 31, and at least one strain sensor 33 is provided on at least two elastic pieces 321.

[0037] It should be understood that the shell assembly 1 has a receiving cavity 10 for accommodating and protecting electronic components such as the pressure sensing module 3, battery, and chip; the shell assembly 1 can be used as an object for the user to hold. According to different appearance design requirements of the electronic pen, the shell assembly 1 can be configured as a columnar housing. A projection plane is set along the axial direction perpendicular to the force transmission shaft 31. The projection shape of the outer wall surface of the shell assembly 1 on the projection plane along the axial direction of the force transmission shaft 31 can be any suitable shape such as a circle, polygon, ellipse, or D shape. The projection of the inner wall surface of the shell assembly 1 on the projection plane along the axial direction of the force transmission shaft 31 can also be a circle or any other suitable shape.

[0038] The pressure sensing module 3 is the core component of the electronic pen, which is used to sense the pressure change applied by the customer at the nib 2 and convert it into an electrical signal. The force transmission shaft 31 is connected to the nib 2 and can conduct the pressure change at the nib 2 to one end far from the nib 2. The force transmission shaft 31 mainly plays the role of transmitting force, and at the same time, the force transmission shaft 31 can also be used as a fixing structure to provide a fixed installation position for other components. The elastic member 32 connects the shell assembly 1 and the force transmission shaft 31. When there is a pressure change at the nib 2, the elastic member 32 will be squeezed or stretched by the force transmission shaft 31, and thus deform. By arranging strain sensors 33 on the elastic member 32, the deformation position, deformation direction, and deformation amount of the elastic member 32 can be detected, and a monitoring signal is generated and transmitted to the chip. Specifically, the elastic member 32 includes a plurality of elastic pieces 321. By arranging a plurality of elastic pieces 321 and surrounding the force transmission shaft 31, strain sensors 33 are arranged on at least two elastic pieces 321, so as to detect the forces in different directions applied to the nib 2 of the electronic pen, and improve the induction sensitivity of the electronic pen to forces in different directions. Specifically, the strain sensor 33 is attached to the elastic piece 321, and the strain sensor 33 can be a strain gauge. It should be understood that the number of elastic pieces provided with strain sensors depends on how many directions of forces the electronic pen needs to detect to further meet the requirements of induction sensitivity.

[0039] It should be understood that in some embodiments, the elastic member 32 has a first wall surface and a second wall surface facing away from each other along the axial direction of the force transmission shaft 31, and the first wall surface and the second wall surface are arranged in a staggered manner. The elastic member 32 is connected to the housing assembly 1 through the first wall surface and connected to the force transmission shaft 31 through the second wall surface.

[0040] In some embodiments, please refer to Figures 2 to 9 As shown, the elastic piece 321 includes a load-bearing part 3211 and a connecting part 3212 connected to each other. The connecting part 3212 is arranged on the side of the load-bearing part 3211 away from the force transmission shaft 31. The strain sensor 33 is arranged on the load-bearing part 3211. The connecting parts 3212 of some elastic pieces 321 are located on the side of the load-bearing part 3211 away from the pen tip 2 and are connected to the housing assembly 1, and the connecting parts 3212 of some elastic pieces 321 are located on the side of the load-bearing part 3211 facing the pen tip 2 and are connected to the force transmission shaft 31.

[0041] It should be understood that the connecting part 3212 is arranged on the side of the load-bearing part 3211 away from the force transmission shaft 31. At the same time, the connecting parts 3212 of some elastic pieces 321 are bent from the side of the load-bearing part 3211 facing away from the pen tip 2 and are connected to the housing assembly 1, and the connecting parts 3212 of the remaining elastic pieces 321 are bent from the side of the load-bearing part 3211 facing the pen tip 2 and are connected to the force transmission shaft 31. The structural design of the bent connecting part 3212 can improve the stability of the connection between the elastic member 32 and the housing assembly 1 and the force transmission shaft 31. On the one hand, through the structure of the elastic piece 321 similar to an L shape formed by the connecting part 3212 and the load-bearing part 3211, the contact area between the elastic piece 321 and the housing assembly 1 or the force transmission shaft 31 is increased, and the connection stability is improved; on the other hand, the deformation ability of this elastic piece 321 structure is better, the deformation range is larger, and the detection accuracy of the strain sensor 33 is higher. More specifically, the connecting part 3212 can be a multi-segment bent structure, including a first bent segment and a second bent segment. The first bent segment and the second bent segment are connected and form an L-shaped structure. The inner side wall of the L-shaped structure is connected to the housing assembly 1 or the force transmission shaft 31 to optimize the pressure sensing path and enhance the structural stability, so that the pressure sensing module 3 can provide a more accurate and smooth input experience for the user during use, which helps to improve the user's satisfaction.

[0042] In some embodiments, please refer to Figures 2 to 5As shown in the figure, the force transmission shaft 31 includes a shaft body 311 and a plurality of support arms 312. The plurality of support arms 312 are arranged around the shaft body 311 and connected to the shaft body 311. Part of the elastic pieces 321 are connected to the support arms 312. The support arms 312 contact part of the elastic pieces 321 to provide a force transmission path between the force transmission shaft 31 and the elastic pieces 321. Preferably, the elastic piece 321 includes a connected bearing part 3211 and a connecting part 3212. The connecting part 3212 is arranged on the side of the bearing part 3211 away from the shaft body 311. The strain sensor 33 is arranged on the bearing part 3211, and the support arm 312 is connected to the connecting part 3212. The pressure received at the pen tip 2 is conducted to the support arm 312 through the shaft body 311, and then acts on the connecting part 3212 through the support arm 312. This structural design can transfer the force application point of the elastic member 32 to the outside of the shaft body 311 and arrange it away from the shaft body 311, so as to obtain a larger elastic deformation range, make the elastic sheet more stable in force, and the plurality of support arms 312 can increase the force application points of the elastic member 32 in different directions to meet the detection of forces in different directions. Preferably, the number of support arms 312 is half of the number of elastic pieces 321. The connecting parts 3212 of half of the elastic pieces 321 are connected to the support arms 312, and the connecting parts 3212 of the other half of the elastic pieces 321 are connected to the shell assembly 1.

[0043] It should be understood that in some embodiments, the bearing part 3211 and the connecting part 3212 are of an integral structure. The integral structure has fewer production processes, does not require processes such as cutting, blanking, and welding, saves costs and has high processing efficiency.

[0044] In some embodiments, please refer to Figure 1 As shown in the figure, the shell assembly 1 includes a connected shell body 11 and an inner tube 12. The shell body 11 has a receiving cavity 10. The inner tube 12 is arranged in the receiving cavity 10. The force transmission shaft 31 passes through the inner tube 12, and part of the elastic pieces 321 are connected to the inner tube 12. It should be understood that the shell body 11 and the inner tube 12 can be of an integral structure or a split structure. When the inner tube 12 and the shell body 11 are of a split structure, the inner tube 12 provides a space for accommodating part of the pressure sensing module 3 and provides a mounting and fixing position for part of the elastic pieces 321, facilitating the assembly of the pressure sensing module 3.

[0045] In some embodiments, please refer to Figure 3 、 Figure 4 As shown in the figure, an avoidance groove 120 is formed on the outer peripheral wall of the inner tube 12. Part of the support arm 312 is received in the avoidance groove 120 and connected to part of the elastic piece 321. By forming the avoidance groove 120 on the outer peripheral wall of the inner tube 12, the movement path of the support arm 312 is avoided, and when the force transmission shaft 31 is stressed and moves, the support arm 312 and the inner tube 12 are prevented from interfering with each other, affecting the force deformation of the elastic piece 321.

[0046] In some embodiments, it should be understood that, please refer to in cooperation withFigure 2 , Figure 3 and Figure 9 As shown in Figure 2 , Figure 3 and Figure 9 , the shrapnel 321 includes a connected bearing portion 3211 and a connecting portion 3212. The connecting portion 3212 is disposed on a side of the bearing portion 3211 away from the force transmission shaft 31. The strain sensor 33 is disposed on the bearing portion 3211. The connecting portion 3212 of some of the shrapnel 321 is located on a side of the bearing portion 3211 away from the pen tip 2 and is connected to the housing assembly 1. The connecting portion 3212 of some of the shrapnel 321 is located on a side of the bearing portion 3211 facing the pen tip 2 and is connected to the force transmission shaft 31. Specifically, some of the shrapnel 321 is connected to the inner tube 12, and some of the shrapnel 321 is connected to the support arm 312. More specifically, a part of the support arm 312 is received in the avoidance groove 120 and is connected to some of the shrapnel 321. By providing the avoidance groove 120 on the outer peripheral wall of the inner tube 12, a receiving space is provided for the bending of the connecting portion 3212 of the shrapnel 321 and the support arm 312, so that the force transmission paths formed by the connection of some of the shrapnel 321 and the support arm 312 and the force transmission paths formed by the connection of some of the shrapnel 321 and the inner tube 12 are equal, and the direction of the force provided by the inner tube 12 on the elastic member 32 is opposite to the direction of the force provided by the support arm 312 on the elastic member 32. This connection structure makes the elastic member 32 more stable in force, and has higher detection sensitivity and higher detection accuracy for forces in different directions.

[0047] Preferably, the arrangement direction of the bearing portion 3211 is perpendicular to the axial direction of the force transmission shaft 31 (as shown in Figure 5 and Figure 7 ), so that the elastic member 32 is more likely to deform after being stressed, the strain sensor 33 has higher detection sensitivity and higher detection accuracy.

[0048] In some embodiments, please refer to Figure 2 and Figure 3 as shown. Among two adjacent shrapnel 321, one is connected to the housing assembly 1 and the other is connected to the force transmission shaft 31. This structure has higher stability. The two adjacent shrapnel 321 support each other, so that the deformation range of the shrapnel 321 is larger, and the detection accuracy of the pressure sensing module 3 can be effectively improved. With reference to Figure 8 and Figure 9 as shown, the present application discloses an elastic member 32 with a cross-shaped symmetric structure. It should be understood that the structure of the elastic member 32 can also be a star shape, a circular shape, etc., and the structure of the shrapnel 321 can be a sector shape.

[0049] In some embodiments, please refer to Figure 2 and Figure 3 as shown. Figure 2 and Figure 3 ​​​​​​​​​​​​As shown, multiple spring pieces 321 are evenly arranged around the force transmission shaft 31, and are arranged in pairs. It should be understood that multiple spring pieces 321 are evenly arranged and are arranged in pairs, that is, multiple spring pieces 321 are symmetrical around the central axis of the force transmission shaft 31, so that the elastic member 32 is more stable in force; at the same time, the more spring pieces 321 there are, the more directions the strain sensor 33 is arranged, so as to improve the sensitivity of the electronic pen to forces in different directions.

[0050] In some embodiments, see Figure 2 , Figure 8 and Figure 9 As shown, a plurality of spring sheets 321 are enclosed to form an avoidance hole 320, and the force transmission shaft 31 is provided with the avoidance hole 320, and there is a gap 3200 between the spring sheets 321. The design of the avoidance hole 320 can avoid stress interference between the spring sheets 321 in different directions, thereby interfering with the deformation of the spring sheets 321; conversely, the design of the avoidance hole 320 improves the degree of freedom between the spring sheets 321, thereby improving the sensitivity of the electronic pen to forces in different directions. In addition, the avoidance hole 320 formed by the plurality of spring sheets 321 can provide a space for the force transmission shaft 31 to pass through the elastic member 32; at the same time, there is a gap 3200 between the force transmission shaft 31 and the spring sheet 321, and the gap 3200 provides a force activity space for the force transmission shaft 31, thereby avoiding interference of the elastic member 32 by the force transmission shaft 31.

[0051] In some embodiments, see Figure 1 , Figure 5 and Figure 7 As shown, the electronic pen further includes an elastic reset member 5, which is arranged in the accommodating cavity 10, and one end of the elastic reset member 5 is connected to the shell assembly 1, and the other end is connected to the force transmission shaft 31; the elastic reset member 5 is configured to generate elastic deformation when the force transmission shaft 31 is offset relative to the shell assembly 1 so as to reset the force transmission shaft 31. It should be understood that the elastic reset member 5 is a reset spring, which is a conical winding spring, one end of which is fixedly arranged on the side wall of the inner tube 12 close to the pen tip 2, and the other end is connected to the force transmission shaft 31. It should be understood that in some embodiments, the connection between the reset spring and the force transmission shaft 31 includes: fixed connection, clamping or abutment. Specifically, when the connection between the reset spring and the force transmission shaft 31 is clamping or abutment, a limit block needs to be set inside the shell assembly 1, and the limit block can be fixed on the inner wall surface of the shell assembly 1, or fixed on the force transmission shaft 31 or other fixed structures in the shell assembly 1.

[0052] In some embodiments, see Figures 1 to 8As shown, the electronic pen further includes a flexible circuit board 4. The flexible circuit board 4 is disposed in the accommodation cavity 10. The flexible circuit board 4 is provided with a through hole 40. The force transmission shaft 31 passes through the through hole 40. The flexible circuit board 4 and the elastic member 32 jointly clamp the strain sensor 33. Through the through hole 40 provided on the flexible circuit board 4, the flexible circuit board 4 can be sleeved on the force transmission shaft 31 and jointly clamp the strain sensor 33 with the elastic member 32, so as to realize the connection between the flexible circuit board 4 and the strain sensor 33 in different directions, and achieve a relatively stable connection method.

[0053] This application also discloses a touch device, including the electronic pen in the above embodiment. The touch device disclosed in the embodiment of this application includes the electronic pen described in the above embodiment, so it can have all the technical features and technical effects of the above electronic pen, which will not be elaborated here.

[0054] In the above embodiments, the descriptions of each embodiment have their own emphases. For the parts not detailed in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0055] The above has introduced the electronic pen and touch device provided by the embodiments of this application in detail, and specific examples are used to elaborate the principle and implementation manner of this application. The description of the above embodiments is only used to help understand the technical solution and its core idea of this application; those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. An electronic pen, characterized in that: include: A shell component (1) is provided with a receiving cavity (10), and a pen tip (2) is provided at one end of the shell component (1); A pressure sensing module (3), the pressure sensing module (3) being arranged in the accommodating cavity (10), comprising: a force transmission shaft (31), an elastic member (32) and a plurality of strain sensors (33), the force transmission shaft (31) being connected to the pen tip (2), the elastic member (32) comprising a plurality of spring sheets (321), the plurality of spring sheets (321) being arranged around the force transmission shaft (31), and every two adjacent spring sheets (321) being connected to each other, among the plurality of spring sheets (321), some of the spring sheets (321) are connected to the shell component (1), and some of the spring sheets (321) are connected to the force transmission shaft (31), and at least two of the spring sheets (321) are each provided with a strain sensor (33).

2. The electronic pen according to claim 1, characterized in that: The spring sheet (321) comprises a bearing portion (3211) and a connecting portion (3212) connected to each other, wherein the connecting portion (3212) is arranged on a side of the bearing portion (3211) away from the force transmission shaft (31), and the strain sensor (33) is arranged on the bearing portion (3211). The connecting portion (3212) of a part of the spring sheet (321) is located on a side of the bearing portion (3211) away from the pen tip (2) and is connected to the shell assembly (1), and the connecting portion (3212) of a part of the spring sheet (321) is located on a side of the bearing portion (3211) facing the pen tip (2) and is connected to the force transmission shaft (31).

3. The electronic pen according to claim 1 or 2, characterized in that: The force transmission shaft (31) comprises a shaft body (311) and a plurality of support arms (312); the plurality of support arms (312) are arranged around the shaft body (311) and are connected to the shaft body (311); and some of the spring sheets (321) are connected to the support arms (312).

4. The electronic pen according to claim 3, characterized in that: The shell assembly (1) comprises a shell body (11) and an inner tube (12) connected to each other, the shell body (11) having the accommodating cavity (10), the inner tube (12) being arranged in the accommodating cavity (10), the force transmission shaft (31) passing through the inner tube (12), and part of the spring sheet (321) being connected to the inner tube (12).

5. The electronic pen according to claim 4, characterized in that: An avoidance groove (120) is provided on the outer peripheral wall of the inner tube (12), and a portion of the support arm (312) is received in the avoidance groove (120) and connected to a portion of the elastic sheet (321).

6. The electronic pen according to claim 1, characterized in that: Of the two adjacent spring pieces (321), one is connected to the shell assembly (1), and the other is connected to the force transmission shaft (31).

7. The electronic pen according to claim 1, characterized in that: The plurality of spring sheets (321) are evenly arranged around the force transmission shaft (31) and are disposed in pairs corresponding to each other.

8. The electronic pen according to claim 1, characterized in that: A plurality of the spring sheets (321) are enclosed to form an avoidance hole (320), and the force transmission shaft (31) is provided with the avoidance hole (320) and has a gap (3200) between the spring sheets (321).

9. The electronic pen according to claim 1, characterized in that: The electronic pen further comprises an elastic restoring member (5), wherein the elastic restoring member (5) is arranged in the accommodating cavity (10), one end of the elastic restoring member is connected to the shell assembly (1), and the other end of the elastic restoring member (5) is connected to the force transmission shaft (31); The elastic reset member (5) is configured to generate elastic deformation when the force transmission shaft (31) is offset relative to the shell assembly (1) so as to reset the force transmission shaft (31).

10. The electronic pen according to claim 1, characterized in that: The electronic pen further comprises a flexible circuit board (4), the flexible circuit board (4) being arranged in the accommodating cavity (10), the flexible circuit board (4) being provided with a through hole (40), the force transmission shaft (31) passing through the through hole (40), and the flexible circuit board (4) and the elastic member (32) jointly clamping the strain sensor (33).

11. A touch device, characterized in that: The electronic pen comprises the electronic pen as claimed in any one of claims 1 to 10.

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