Electromagnetic pen and electronic equipment
By using pen clip parts and step structures to replace the diaphragm in an electromagnetic pen, the production consistency and functional abnormalities caused by the diaphragm are solved, and a higher production yield and user experience are achieved.
Patent Information
- Application Number
- CN202421632877.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-10
- Publication Date
- 2025-04-29
- Estimated Expiration
- 2034-07-10
AI Technical Summary
In existing electromagnetic pens, it is difficult to accurately control the distance of the diaphragm, resulting in poor production consistency and abnormal functions.
Instead of the diaphragm, a step structure is used to achieve a matching limit for the first magnetic core and the second magnetic core, so that the initial position of the second magnetic core and the first magnetic core are relatively fixed.
The problems of production consistency and regression initial position stuck due to the thin film are solved, and the production yield and user experience are improved.
Smart Images
Figure CN222813119U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of information input devices, and in particular to an electromagnetic pen and an electronic device. Background Art
[0002] In some related technologies, the electromagnetic pen adopts a dual-core structure, and the frequency change is effectively adjusted by changing the spacing distance between the first core and the second core. In order to maintain a fixed and accurate distance between the two cores when the pen tip is not writing, a film with precise thickness is usually provided between the two cores to control the distance between the two cores. However, since the film is usually made of very thin materials, the production accuracy is difficult to control, and the film is prone to deformation or burring during the process of manufacturing, resulting in loss of control, making the production quality control of electromagnetic pens difficult and the consistency poor. In addition, during the writing process, when the pen tip drives the second core to move axially, the film will also drive the axial movement. When the pen is lifted and returned, the film will tilt, causing the second core to get stuck and not return to its position, resulting in malfunction. Summary of the invention
[0003] The purpose of the present application is to solve at least one of the technical problems existing in the prior art. To this end, the present application proposes an electromagnetic pen that can avoid the functional abnormality caused by the film sheet, ensure the position accuracy and improve the user experience.
[0004] The present application also proposes an electronic device comprising the electromagnetic pen.
[0005] The electromagnetic pen according to the first embodiment of the present application includes:
[0006] A pen core, comprising a pen tip and a tail portion opposite to the pen tip;
[0007] A first magnetic core having a through hole, wherein the pen core is passed through the through hole and the pen tip can be extended from one end of the first magnetic core;
[0008] A pen clip component, comprising a clamping end, wherein the outer periphery of the clamping end is provided with a step structure, wherein the step structure is provided with a first end and a second end opposite to each other along a direction from the pen tip to the tail, wherein a portion of the clamping end extends into the through hole, and the other opposite end of the first magnetic core abuts against the first end;
[0009] The second magnetic core is sleeved on the outer periphery of the clamping end, and one end of the second magnetic core is abutted against the second end portion.
[0010] The electromagnetic pen according to the first aspect of the present application has at least the following beneficial effects: the film sheet in the related art is replaced by the pen clip component, and the first magnetic core and the second magnetic core are limited by a step structure, so that the initial positions of the second magnetic core and the first magnetic core are relatively fixed, thereby solving the problems of production consistency and returning to the initial position stuck caused by the film sheet, and improving the production yield.
[0011] According to the electromagnetic pen described in the embodiment of the first aspect of the present application, the pen clip component includes a first pen clip assembly and a second pen clip assembly, one end of the second pen clip assembly forms a limited position cavity, one end of the first pen clip assembly is arranged in the limited position cavity, and the other end of the first pen clip assembly serves as the clamping end.
[0012] According to the electromagnetic pen described in the embodiment of the first aspect of the present application, the pen clip component includes a first elastic component, and the first elastic component is arranged between one end of the second pen clip assembly and the other opposite end of the second magnetic core.
[0013] According to the electromagnetic pen described in the embodiment of the first aspect of the present application, the clamping end includes an extension structure and a first conical surface structure, and the extension structure, the step structure and the first conical surface structure are arranged in sequence along the direction from the pen tip to the tail, the extension structure is used to extend into the through hole and clamp the tail, the step structure is used to position the first magnetic core and the second magnetic core respectively, and a second conical surface structure is provided on the inner side of one end of the second magnetic core, and the second conical surface structure can be tightly matched with the first conical surface structure when the second magnetic core abuts the step structure.
[0014] According to the electromagnetic pen described in the embodiment of the first aspect of the present application, the electromagnetic pen also includes a second elastic component and a pressure regulating component, the second elastic component acts on the pen clip component and is used to reset the pen core, the pen clip component has an abutting end opposite to the clamping end, and the pressure regulating component is used to adjust the movement space of the pen clip component.
[0015] According to the electromagnetic pen described in the embodiment of the first aspect of the present application, the electromagnetic pen also includes a bracket assembly, the bracket assembly is provided with a accommodating cavity for accommodating the pressure regulating component, the second elastic component, the pen clip component, the second magnetic core and part of the first magnetic core, the second elastic component abuts the bracket assembly and the pen clip component respectively, and the pressure regulating component is arranged in the accommodating cavity by means of a threaded connection, so that the pressure regulating component can adjust the movement space of the pen clip component by rotation.
[0016] According to the electromagnetic pen described in the embodiment of the first aspect of the present application, the pressure regulating member is provided with an adjusting hole, and the bracket assembly is provided with an opening corresponding to the adjusting hole, and the adjusting hole is used for inserting a tool to adjust the pressure regulating member.
[0017] According to the electromagnetic pen described in the first aspect embodiment of the present application, an elastic block is provided in the bracket assembly, a mounting groove is formed at the abutting end, the elastic block is arranged in the mounting groove, and the elastic block can feedback the pressure exerted on the pen tip through deformation.
[0018] According to the electromagnetic pen described in the embodiment of the first aspect of the present application, the electromagnetic pen also includes a coil assembly and a circuit board assembly, the coil assembly is arranged on the outer periphery of the first magnetic core, the first magnetic core and the coil assembly are arranged in coordination and form an LC oscillation circuit with the second magnetic core and the circuit board assembly.
[0019] An electronic device according to an embodiment of the second aspect of the present application includes: an electromagnetic pen as described in the embodiment of the first aspect of the present application.
[0020] It is not difficult to understand that the electronic device in the second aspect embodiment of the present application has the technical effect of the electromagnetic pen in the first aspect embodiment described above, and thus will not be described in detail.
[0021] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] The present application is further described below with reference to the accompanying drawings and embodiments;
[0023] Figure 1 It is a front view of an embodiment of the present application;
[0024] Figure 2 for Figure 1 Cross-section of the middle AA;
[0025] Figure 3 It is a left view of the embodiment of the present application;
[0026] Figure 4 for Figure 3 Cross-section of the middle BB;
[0027] Figure 5 for Figure 4 Enlarged view of C in the middle.
[0028] Reference numerals:
[0029] 100, refill; 110, nib; 120, tail;
[0030] 200, first magnetic core; 210, through hole;
[0031] 300, pen clip component; 301, clamping end; 302, abutting end; 310, first pen clip component; 311, extending structure; 312, step structure; 3121, first end; 3122, second end; 313, first cone structure; 320, second pen clip component; 321, limiting cavity; 322, mounting groove; 330, first elastic component;
[0032] 400, a second magnetic core; 410, a second conical surface structure;
[0033] 510, second elastic component; 520, elastic block;
[0034] 600, pressure regulating piece; 610, regulating hole;
[0035] 700, support assembly; 710, accommodating cavity; 720, opening;
[0036] 800, coil assembly;
[0037] 900. Circuit board assembly. DETAILED DESCRIPTION
[0038] The embodiments of the present application 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 application, and cannot be understood as limiting the present application.
[0039] In the description of the present application, 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 application 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 should not be understood as a limitation on the present application.
[0040] In the description of this application, "several" means one or more, "more" means at least 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 for the purpose of distinguishing 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.
[0041] In the description of this application, 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 this application after combining the specific content of the technical solution.
[0042] Reference Figures 1 to 5 The electromagnetic pen of the first embodiment of the present application includes a pen core 100, a first magnetic core 200, a pen clip component 300 and a second magnetic core 400.
[0043] The pen core 100 includes a pen tip 110 and a tail portion 120 opposite to the pen tip 110; the first magnetic core 200 has a through hole 210, the pen core 100 is inserted into the through hole 210 and can extend the pen tip 110 from one end of the first magnetic core 200; the pen clip component 300 has a clamping end 301, the outer periphery of the clamping end 301 is provided with a step structure 312, and the step structure 312 is provided with a first end 3121 and a second end 3122 opposite to each other in the direction from the pen tip 110 to the tail portion 120, a part of the clamping end 301 extends into the through hole 210, and the other end of the first magnetic core 200 abuts against the first end 3121; the second magnetic core 400 is sleeved on the outer periphery of the clamping end 301, and one end of the second magnetic core 400 abuts against the second end 3122.
[0044] It is understandable that after the second magnetic core 400 is fixedly limited with the step structure 312, when the electromagnetic pen is not writing, the second magnetic core 400 maintains a fixed distance H with the first magnetic core 200. During the writing process, the pen core 100 pushes the pen clip component 300 and the second magnetic core 400 to move axially, and H changes, reaching a change in the inductance value, thereby generating a frequency change. In the related art, the second magnetic core 400 is controlled to move up and down by the step limit of the tail 120 of the pen tip 110, and the force transmitted from the pen tip 110 is concentrated on the step of the tail 120 of the pen tip 110. When the pen tip 110 is subjected to excessive force, the step of the tail 120 is easily deformed and curled to produce a sharp edge and remain in the position of the film, resulting in the second magnetic core 400 not being able to return to its position, thereby causing functional problems. Based on this, the present application adopts a new type of fixed structure, namely the pen clip component 300, to replace the existing film structure, to solve the functional abnormality problem caused by the film and improve the production yield.
[0045] Reference Figures 1 to 5 The electromagnetic pen of the first embodiment of the present application replaces the film sheet in the related art with a pen clip component 300, and uses a step structure 312 to achieve matching and limiting of the first magnetic core 200 and the second magnetic core 400, so that the initial positions of the second magnetic core 400 and the first magnetic core 200 are relatively fixed, thereby solving the problems of production consistency and returning to the initial position stuck caused by the film sheet, and improving the production yield.
[0046] In some embodiments of the present application, the clip component 300 includes a first clip component 310 and a second clip component 320, one end of the second clip component 320 forms a limiting cavity 321, one end of the first clip component 310 is disposed in the limiting cavity 321, and the other end of the first clip component 310 is used as a clamping end 301. It can be understood that compared with the prior art, the film sheet is eliminated, and the outer step of the first clip component 310 cooperates with the tail 120 of the first magnetic core 200, and the front end of the first clip component 310 is inserted into the through hole 210 of the first magnetic core 200, so that the initial relative position of the first clip component 310 and the first magnetic core 200 is fixed, the second magnetic core 400 passes through the first clip component 310 and is fixed by the raised surface step thereof, and the tail 120 of the first clip component 310 is fixed by the bottom of the inner cavity of the second clip component 320, so that the position accuracy of the first clip component 310 and the second clip component 320 is improved by using the limiting cavity 321.
[0047] In some embodiments of the present application, the clip component 300 includes a first elastic component 330, and the first elastic component 330 is disposed between one end of the second clip component 320 and the other end of the second magnetic core 400. It can be understood that by adding the first elastic component 330 to absorb the tolerance of the second clip component 320 and the second magnetic core 400, after determining the initial position of the second magnetic core 400 and the first magnetic core 200, the relative position of the second magnetic core 400 and the first magnetic core 200 can be better maintained after use, thereby better solving the problems of production consistency of the film sheet and returning to the initial position and getting stuck.
[0048] In some embodiments, the first elastic member 330 includes an elastic ring. In some embodiments, the elastic ring is configured as an elastic silicone ring, and the elastic silicone ring is disposed between the second clip assembly 320 and the second magnetic core 400 to absorb the manufacturing tolerance of the magnetic core and the clip, so that the second magnetic core 400 and the first clip assembly 310 are kept in a relatively fixed position, and further, when the pen tip 110 is subjected to force to make an axial movement, the initial relative distance H between the second magnetic core 400 and the first magnetic core 200 remains unchanged.
[0049] In some embodiments of the present application, the clamping end 301 includes an extension structure 311 and a first conical surface structure 313. The extension structure 311, the step structure 312 and the first conical surface structure 313 are arranged in sequence along the direction from the pen tip 110 to the tail 120. The extension structure 311 is used to extend into the through hole 210 and clamp the tail 120. The step structure 312 is used to respectively position the first magnetic core 200 and the second magnetic core 400. A second conical surface structure 410 is provided on the inner side of one end of the second magnetic core 400. The second conical surface structure 410 can be tightly matched with the first conical surface structure 313 when the second magnetic core 400 abuts against the step structure 312. It is understandable that the cross-sectional size of the insertion structure 311 is adapted to the size of the through hole 210 of the first magnetic core 200 and is smaller than the size of the step structure 312, so that after the insertion structure 311 is inserted into the through hole 210 of the first magnetic core 200, the first magnetic core 200 can be positioned by the first end 3121 of the step structure 312. The step structure 312 with the transitional protrusion of the first conical surface structure 313 makes the structure design of the clamping end 301 reasonable, and the first conical surface structure 313 cooperates with the second conical surface structure 410 to improve the axial precision, so that the position precision of the second magnetic core 400 sleeved on the clamping end 301 is higher.
[0050] In some embodiments, the step 120 at the tail of the pen core 100 cooperates with the first pen clip assembly 310, so that when the pen tip 110 is subjected to force, the step 120 at the tail is not easily deformed to produce a sharp edge, and no sharp edge will remain to cause the return position of the second magnetic core 400 to change.
[0051] In some embodiments, the first end 3121 includes one end surface of the step structure 312, and the second end 3122 includes another end surface opposite to the step structure 312, and the first magnetic core 200 and the second magnetic core 400 are reliably positioned by using the positioning surface. In other embodiments, at least one of the first end 3121 or the second end 3122 can also be configured to include a commonly used positioning structure, and the corresponding positioning effect can also be achieved by using the positioning structure, which will not be described in detail here.
[0052] In some embodiments of the present application, the electromagnetic pen further includes a second elastic component 510 and a pressure regulating component 600. The second elastic component 510 acts on the pen clip component 300 and is used to reset the pen core 100. The pen clip component 300 has an abutting end 302 opposite to the clamping end 301. The pressure regulating component 600 is used to adjust the movement space of the pen clip component 300. It can be understood that when writing, the thrust force of the pen tip 110 that overcomes the deformation of the second elastic component 510 drives the second magnetic core 400 to move axially. When the pen is lifted to finish writing, the thrust of the second elastic component 510 allows the second magnetic core 400 to return to the initial state position. The pressure regulating component 600 is used to adjust the force required for the second magnetic core 400 to produce the same displacement distance, thereby adjusting the weight of the pen pressure.
[0053] It is understandable that in the related art, when the pressure regulating plate is adjusted by turning, a gap will be generated between the pressure regulating plate and its mating inclined surface, and the gap needs to be eliminated by pressing the pen tip 110, but the position of the pressure regulating plate will change, and it needs to be turned and debugged again, which makes production debugging cumbersome and difficult to automate.
[0054] In some embodiments of the present application, the electromagnetic pen further comprises a support assembly 700, the support assembly 700 is provided with a receiving cavity 710 for receiving a pressure regulating member 600, a second elastic member 510, a pen clip member 300, a second magnetic core 400 and a part of the first magnetic core 200, the second elastic member 510 respectively abuts against the support assembly 700 and the pen clip member 300, and the pressure regulating member 600 is arranged in the receiving cavity 710 by means of a threaded connection, so that the pressure regulating member 600 can adjust the movement space of the pen clip member 300 by rotating. It can be understood that by improving the structure of the pressure regulating plate in the related art, the pressure regulating member 600 that can be rotatably adjusted is used to solve the problem of repeated adjustment due to the gap of the pressure regulating inclined surface, thereby improving production efficiency.
[0055] In some embodiments, the pressure regulating member 600 adjusts the length of the second elastic member 510 by rotating the screw thread to adjust the force required by the second magnetic core 400 to produce the same displacement distance, thereby achieving the effect of adjusting the weight of the pen pressure. Specifically, the pressure regulating member 600 adopts a threaded regulating member, and the weight of the water output is adjusted by rotating the threaded pressure regulating plate, which can be adjusted in place at one time without repeated adjustments due to the inclined surface gap.
[0056] In some embodiments of the present application, the pressure regulating member 600 is provided with an adjustment hole 610, and the bracket assembly 700 is provided with an opening 720 corresponding to the adjustment hole 610, and the adjustment hole 610 is used for inserting a tool to adjust the pressure regulating member 600. In some embodiments, the tail 120 of the regulating member is provided with a slotted hole as the adjustment hole 610, which can facilitate the insertion and rotation of a screwdriver. In some embodiments, after the regulating member is assembled with the bracket, a round rod can be inserted through the provided round hole for rotation fine adjustment.
[0057] In some embodiments of the present application, an elastic block 520 is provided in the bracket assembly 700, and a mounting groove 322 is formed at the abutting end 302. The elastic block 520 is arranged in the mounting groove 322, and the elastic block 520 can feedback the pressure exerted on the pen tip 110 by deformation. It can be understood that the second elastic component 510 is used to reset the pen core 100, and the elastic block 520 has a preset elasticity value through the design of the structural shape, material, etc. When in use, the pen core 100 presses down and drives the elastic block 520 to move until it abuts against the pressure regulating member 600. After abutting, the pen core 100 continues to press down, which causes the elastic block 520 to find deformation. Based on the elasticity of the elastic block 520, a preset proportional relationship is achieved between the pressure transmitted by the pen core 100 and the displacement of the second magnetic core 400, which is convenient for control and use.
[0058] In some embodiments, the second elastic component 510 is a spring, which is sleeved on the outer periphery of the second clip assembly 320 . The second clip assembly 320 is provided with a boss, one end of the spring abuts against the bracket assembly 700 , and the other end abuts against the boss to apply elastic force to the clip component 300 .
[0059] In some embodiments of the present application, the electromagnetic pen further includes a coil assembly 800 and a circuit board assembly 900, the coil assembly 800 is sleeved on the outer periphery of the first magnetic core 200, the first magnetic core 200 and the coil assembly 800 are arranged in cooperation and form an LC oscillation circuit with the second magnetic core 400 and the circuit board assembly 900. It can be understood that in the initial state, the first magnetic core 200 and the coil assembly 800, the second magnetic core 400 and the circuit board assembly 900 form an LC oscillation circuit, and after the first magnetic core 200 and the coil are inductively charged on the handwriting board, the LC oscillation circuit will generate a fixed initial frequency; when writing, the pen tip 110 is pressed down to overcome the thrust of the spring and the elastic block 520 deformation to drive the second magnetic core 400 to move axially, and the first magnetic core 200 and the second magnetic core 400 generate relative displacement to change the inductance value connected in the circuit, thereby changing the initial frequency and generating a frequency corresponding to the displacement change of the second magnetic core 400. The handwriting board obtains the current frequency change generated on the electromagnetic pen through electromagnetic interaction and calculates the corresponding pen pressure value. When the pen is lifted up to finish writing, the thrust of the spring and the elastic block 520 returns the second magnetic core 400 to the initial state position, and the LC oscillation circuit returns to the initial frequency state.
[0060] In some embodiments, the bracket assembly 700 includes a shell and a core cabin, the core cabin is used to accommodate the first core 200, the first core 200 is wound with a coil, the coil is connected to the PCBA assembly to form an LC circuit, the first core 200 is fixed on the core cabin, the core cabin and the shell are combined to form an inner cavity, the first pen clip assembly 310, the second core 400, the elastic silicone ring, the second pen clip assembly 320, the elastic block 520, the spring are arranged in sequence in the cavity; the rear is the threaded pressure regulating member 600, the bracket, the PCBA assembly; the threaded pressure regulating member 600 is threadedly assembled with the bracket. In some embodiments, the second pen clip assembly 320 is provided with a locking position to cooperate with the cabin groove, and when the pen core 100 is rotated, it is ensured that the second magnetic core 400 remains in the current state and is not rotated.
[0061] Reference Figures 1 to 5 The electronic device of the second aspect embodiment of the present application may be an electronic device provided with a handwriting screen, a touch screen, etc., such as an electronic device for handwriting and drawing. The electronic device includes the electromagnetic pen of the first aspect embodiment of the present application, which can improve the accuracy of the input function and enhance the user experience.
[0062] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0063] The embodiments of the present application are described in detail above in conjunction with the accompanying drawings, but the present application is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present application.
Claims
1. An electromagnetic pen, characterized in that: include: A pen core, comprising a pen tip and a tail portion opposite to the pen tip; A first magnetic core having a through hole, wherein the pen core is passed through the through hole and the pen tip can be extended from one end of the first magnetic core; A pen clip component, comprising a clamping end, wherein the outer periphery of the clamping end is provided with a step structure, wherein the step structure is provided with a first end and a second end opposite to each other along a direction from the pen tip to the tail, wherein a portion of the clamping end extends into the through hole, and the other opposite end of the first magnetic core abuts against the first end; The second magnetic core is sleeved on the outer periphery of the clamping end, and one end of the second magnetic core is abutted against the second end portion.
2. The electromagnetic pen according to claim 1, characterized in that: The pen clip component includes a first pen clip component and a second pen clip component, one end of the second pen clip component forms a limited position cavity, one end of the first pen clip component is arranged in the limited position cavity, and the other end of the first pen clip component serves as the clamping end.
3. The electromagnetic pen according to claim 2, characterized in that: The clip member includes a first elastic member disposed between one end of the second clip assembly and the other opposite end of the second magnetic core.
4. The electromagnetic pen according to claim 2, characterized in that: The clamping end includes an extension structure and a first conical surface structure. The extension structure, the step structure and the first conical surface structure are arranged in sequence along the direction from the pen tip to the tail. The extension structure is used to extend into the through hole and clamp the tail. The step structure is used to position the first magnetic core and the second magnetic core respectively. A second conical surface structure is provided on the inner side of one end of the second magnetic core. The second conical surface structure can fit tightly with the first conical surface structure when the second magnetic core abuts against the step structure.
5. The electromagnetic pen according to claim 1, characterized in that: The electromagnetic pen further comprises a second elastic component and a pressure regulating component, wherein the second elastic component acts on the pen clip component and is used to reset the pen core, the pen clip component has an abutting end opposite to the clamping end, and the pressure regulating component is used to adjust the movement space of the pen clip component.
6. The electromagnetic pen according to claim 5, characterized in that: The electromagnetic pen also includes a bracket assembly, which is provided with a receiving cavity for receiving the pressure regulating component, the second elastic component, the pen clip component, the second magnetic core and part of the first magnetic core, the second elastic component abuts the bracket assembly and the pen clip component respectively, and the pressure regulating component is arranged in the receiving cavity by means of a threaded connection, so that the pressure regulating component can adjust the movement space of the pen clip component by rotation.
7. The electromagnetic pen according to claim 6, characterized in that: The pressure regulating member is provided with an adjusting hole, and the bracket assembly is provided with an opening corresponding to the adjusting hole. The adjusting hole is used for inserting a tool to adjust the pressure regulating member.
8. The electromagnetic pen according to claim 6, characterized in that: An elastic block is arranged in the bracket assembly, and a mounting groove is formed at the abutting end. The elastic block is arranged in the mounting groove, and the elastic block can feedback the pressure exerted on the pen tip through deformation.
9. The electromagnetic pen according to claim 1, characterized in that: The electromagnetic pen further comprises a coil assembly and a circuit board assembly. The coil assembly is sleeved on the outer periphery of the first magnetic core. The first magnetic core is matched with the coil assembly and forms an LC oscillation circuit with the second magnetic core and the circuit board assembly.
10. An electronic device, characterized in that: include: An electromagnetic pen as claimed in any one of claims 1 to 9.