Electronic pen structure

Abstract

The electronic pen structure comprises a pen body, a pen point body, a fixing frame, a first sealing piece and a second sealing piece, the pen body is provided with a containing cavity, and the pen point body is arranged in the containing cavity in a penetrating mode in the first direction; the fixing frame is located in the containing cavity. The first sealing piece and the second sealing piece are both located in the containing cavity, and the second sealing piece surrounds and abuts against the peripheral wall of the pen point body. In the first direction, the pen body abuts against the first sealing piece, the first sealing piece abuts against the fixing frame, the fixing frame abuts against the second sealing piece, the second sealing piece abuts against the pen point body, the pen body and the fixing frame jointly compress the first sealing piece, and the fixing frame and the pen point body jointly compress the second sealing piece. According to the electronic pen structure, the waterproof performance can be improved, and the service life of the electronic pen structure can be prolonged.

Description

Technical Field

[0001] This application relates to the technical field of electronic pen structures, and particularly to an electronic pen structure. Background Art

[0002] The electronic pen structure includes structures such as a pen tip and a pen body. There is a gap between the pen tip and the pen body, and this gap is used to provide a certain movement space for the pen tip to ensure that the pressure sensor can detect the pressure changes generated during writing. The problem is that water stains are likely to enter the interior of the electronic pen structure from this gap, and the water stains will cause the electronic components inside the electronic pen structure to short-circuit or corrode, affecting the service life of the electronic pen structure. Utility Model Content

[0003] This application aims to solve at least one of the technical problems existing in the prior art. For this reason, this application proposes an electronic pen structure that can improve the waterproof performance and is beneficial to extending the service life of the electronic pen structure.

[0004] The electronic pen structure according to the first aspect embodiment of this application includes a pen body, a pen tip main body, a fixing frame, a first sealing member, and a second sealing member;

[0005] The pen body is provided with a receiving cavity;

[0006] The pen tip main body penetrates through the receiving cavity along a first direction;

[0007] The fixing frame is located in the receiving cavity;

[0008] Both the first sealing member and the second sealing member are located in the receiving cavity, and the second sealing member surrounds and abuts against the outer peripheral wall of the pen tip main body;

[0009] Wherein, along the first direction, the pen body abuts against the first sealing member, the first sealing member abuts against the fixing frame, the fixing frame abuts against the second sealing member, the second sealing member abuts against the pen tip main body, the pen body and the fixing frame jointly compress the first sealing member, and the fixing frame and the pen tip main body jointly compress the second sealing member.

[0010] The electronic pen structure according to the embodiments of the present application has at least the following beneficial effects: The first seal is used to prevent water stains from entering the accommodation cavity between the pen body and the fixing bracket, and the second seal is used to prevent water stains from entering the accommodation cavity between the fixing bracket and the pen tip body, realizing the waterproof sealing of the accommodation cavity. In addition, the second seal abuts against the pen tip body, and the first seal, the fixing bracket, and the second seal can be assembled to the pen body in sequence in the direction opposite to the first direction, and along the first direction, the second seal, the fixing bracket, and the first seal can be disassembled in sequence. On the basis of ensuring the waterproof sealing of the accommodation cavity, it is also convenient for the disassembly and assembly of the structure of the electronic pen. Thus, the disassembly, assembly, and maintenance of the electronic pen structure of the present application are more convenient, and the accommodation cavity can be waterproof-sealed, effectively preventing water stains from eroding the electronic components installed in the accommodation cavity, which is beneficial to extending the service life of the electronic pen structure.

[0011] According to some embodiments of the present application, along the first direction, the fixing bracket is provided with a fixing through hole, and a guiding inclined surface is provided on one side of the fixing through hole close to the second seal, so that the aperture of part of the fixing through hole gradually increases. Along the first direction, the pen tip body penetrates through the fixing through hole, and the guiding inclined surface abuts against the second seal. The second seal abuts against the pen tip body along the first direction and the second direction, and the first direction is perpendicular to the second direction.

[0012] According to some embodiments of the present application, the pen body is provided with a first protrusion, the outer peripheral wall of the first seal abuts against the first protrusion, the fixing bracket is provided with a first abutting portion and a second abutting portion, the first abutting portion is connected to the second abutting portion, along the first direction, the first seal abuts against the second abutting portion, and the first protrusion abuts against the first abutting portion.

[0013] According to some embodiments of the present application, a first groove is provided on the outer peripheral wall of the pen tip body, the first groove is located in the accommodation cavity, and a part of the second seal is located in the first groove.

[0014] According to some embodiments of the present application, the pen tip body includes a pen tip portion and a connecting portion. At least part of the pen tip portion is located outside the accommodation cavity, the connecting portion is located in the accommodation cavity, the connecting portion is detachably connected to the pen tip portion, and along the first direction, the second seal abuts against the connecting portion.

[0015] According to some embodiments of the present application, the pen tip body includes a pen tip, the pen tip is exposed outside the accommodation cavity. Along the first direction, the distance between the pen tip and the pen body is a first distance, the abutting area between the fixing bracket and the second seal is a first area, the abutting area between the pen tip body and the second seal is a second area. Along the first direction, the maximum distance between the first area and the second area is a second distance, and the second seal has a first dimension when not compressed, the first dimension is greater than the second distance, and the difference between the first dimension and the second distance is greater than the first distance.

[0016] According to some embodiments of the present application, the pen tip body includes a pen tip portion and a connecting portion. Along a first direction, a second protrusion is convexly provided on the outer peripheral wall of the pen tip portion, and a second groove is concavely provided on the inner peripheral wall of the connecting portion. The second protrusion is located in the second groove.

[0017] According to some embodiments of the present application, a plurality of second protrusions are arranged at intervals along the first direction, a plurality of second grooves are arranged at intervals along the first direction, the number of the second protrusions is equal to the number of the second grooves, and each second protrusion is in one-to-one correspondence and cooperation with each second groove.

[0018] According to some embodiments of the present application, the pen tip body includes a pen tip portion, and the pen tip portion includes a refill and an insulating layer, and the insulating layer covers the outer peripheral wall of the refill.

[0019] According to some embodiments of the present application, the electronic pen structure further includes a strain module, and the strain module is connected to the pen tip body.

[0020] Additional aspects and advantages of the present application will be given in part in the following description, become apparent in part from the following description, or be learned through the practice of the present application. Description of the Drawings

[0021] The following further describes the present application in conjunction with the drawings and embodiments, where:

[0022] Figure 1 is a schematic structural diagram of the electronic pen structure according to the embodiment of the present application;

[0023] Figure 2 is Figure 1 a cross-sectional view taken along line A-A in

[0024] Figure 3 is Figure 2 a partial enlarged schematic view at A in

[0025] Figure 4 is a schematic structural diagram of the pen tip portion according to the embodiment of the present application;

[0026] Figure 5 is a schematic structural diagram of the connecting portion according to the embodiment of the present application;

[0027] Figure 6 is a schematic structural diagram of the fixing bracket according to the embodiment of the present application.

[0028] Reference numerals: pen body 100, accommodation cavity 110, first protrusion 120;

[0029] pen tip body 200, pen tip portion 210, second protrusion 211, refill 212, insulating layer 213, pen tip 214, first groove 220, connecting portion 230, second groove 231;

[0030] Fixing bracket 300, guiding inclined plane 310, first abutting portion 320, second abutting portion 330, fixing through hole 340;

[0031] First seal 410, second seal 420. Detailed implementation manners

[0032] The embodiments of the present application will be described in detail below. The examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and should not be construed as a limitation to the present application.

[0033] In the description of the present application, it should be understood that for the orientation descriptions, such as up, down, front, back, left, right, etc., the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element 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.

[0034] In the description of the present application, the meaning of "several" is more than one, the meaning of "multiple" is more than two, and understandings such as "greater than", "less than", "exceeding", etc. do not include the recited number, and understandings such as "above", "below", "within", etc. include the recited number. If there is a description of "first" and "second", it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence of the indicated technical features.

[0035] In the description of the present application, unless otherwise clearly defined, terms such as "set", "installed", "connected", etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present application in combination with the specific content of the technical solution.

[0036] In the description of the present application, the descriptions with reference to terms such as "one embodiment", "some embodiments", "schematic embodiments", "examples", "specific examples", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic descriptions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0037] The embodiments of the present application will be introduced below in conjunction with the accompanying drawings of the specification:

[0038] Refer to Figures 1 to 4, According to the electronic pen structure of an embodiment of the present application, it includes a pen body 100, a pen tip main body 200, a fixing bracket 300, a first seal 410, and a second seal 420. The pen body 100 is provided with a receiving cavity 110. The pen tip main body 200 is inserted into the receiving cavity 110 along a first direction, and at least a part of the pen tip main body 200 is located outside the receiving cavity 110. The part of the pen tip main body 200 located outside the receiving cavity 110 is used to contact the touch screen to implement operations such as inputting instructions, writing, and drawing. The fixing bracket 300, the first seal 410, and the second seal 420 are all located in the receiving cavity 110. Along the first direction, the pen body 100 abuts against the first seal 410, the first seal 410 abuts against the fixing bracket 300, and the pen body 100 and the fixing bracket 300 jointly compress the first seal 410. The first seal 410 is used to seal the gap between the pen body 100 and the fixing bracket 300.

[0039] In addition, the second seal 420 surrounds and abuts against the outer peripheral wall of the pen tip main body 200. And, along the first direction, the fixing bracket 300 abuts against the second seal 420, the second seal 420 abuts against the pen tip main body 200, and the fixing bracket 300 and the pen tip main body 200 jointly compress the second seal 420. The second seal 420 is used to prevent water stains from entering the receiving cavity 110 between the fixing bracket 300 and the pen tip main body 200. Thus, by providing the first seal 410 and the second seal 420, the sealing effect of the receiving cavity 110 can be fully guaranteed, water stains can be prevented from entering the receiving cavity 110, which is beneficial to extending the service life of the electronic pen structure.

[0040] Specifically, there is a gap between the pen tip main body 200 and the pen body 100. This gap is used to provide a moving space for the pen tip main body 200. When the pen tip main body 200 contacts the touch screen, it moves relative to the pen body and realizes interaction with the touch screen through electromagnetic induction or capacitance change. The fixing bracket 300 spaces the first seal 410 and the second seal 420 apart along the first direction, effectively avoiding the simultaneous failure of the first seal 410 and the second seal 420 installed at the same position due to local processing defects in the electronic pen structure, which is beneficial to further improving the waterproof performance of the electronic pen structure. The receiving cavity 110 is used to accommodate electronic components such as a strain module. The mutual abutment of each part of the electronic pen structure ensures the waterproof effect of the electronic pen structure, is used to prevent the electronic components from contacting water, and avoids short circuits or corrosion of the electronic components.

[0041] It should be noted that the first seal 410 and the second seal 420 are made of elastic materials, such as silicone, rubber, etc. The first seal 410 and the second seal 420 are in a compressed state in the accommodation cavity 110, so that the abutment of the first seal 410 and the second seal 420 against other structures is an elastic abutment, which is used to avoid gaps at the sealing position and helps to improve the sealing performance of the electronic pen structure. In addition, the first seal 410 can be arranged around the outer peripheral wall of the pen tip body 200. When the electronic pen structure is assembled, the first seal 410, the fixing bracket 300 and the second seal 420 are sequentially installed in the opposite directions of the first direction. The second seal 420 is connected to the pen tip body 200, and the second seal 420 and the pen tip body 200 are assembled at the same time. There is a gap between the first seal 410 and the pen tip body 200, which is used to avoid contact friction between the pen tip body 200 and the first seal 410 and facilitate the disassembly, assembly and maintenance of the electronic pen structure.

[0042] Reference Figures 3 to 6 , in some embodiments, along the first direction, the fixing bracket 300 is provided with a fixing through hole 340. A guiding inclined surface 310 is provided on one side of the fixing through hole 340 close to the second seal 420, so that the aperture of a part of the fixing through hole 340 gradually increases along the first direction. Along the first direction, the pen tip body 200 passes through the fixing through hole 340, and the guiding inclined surface 310 abuts against the second seal 420. The second seal 420 abuts against the pen tip body 200 along the first direction and the second direction, and the first direction is perpendicular to the second direction. Compared with the case where the guiding inclined surface 310 is not provided, that is, the abutting surface of the fixing bracket 300 for abutting against the second seal 420 is a plane perpendicular to the first direction, and the fixing bracket 300 only abuts against the second seal 420 along the first direction, and the second seal 420 only abuts against the pen tip body 200 along the first direction. The setting of the guiding inclined surface 310 enables the fixing bracket 300 to abut against the second seal 420 in a direction having an included angle with respect to both the first direction and the second direction. Furthermore, the abutting surface between the second seal 420 and the pen tip body 200 includes an abutting surface perpendicular to the first direction and an abutting surface perpendicular to the second direction, which is beneficial to increasing the contact area between the second seal 420 and the pen tip body 200 and beneficial to increasing the waterproof effect of the electronic pen structure.

[0043] Specifically, under the abutting action of the guiding inclined surface 310, the acting force between the second seal 420 and the pen tip body 200 includes an acting force along the first direction and an acting force along the second direction. This acting force comes from the abutting of the guiding inclined surface 310, that is, the acting force of the guiding inclined surface 310 on the second seal 420 can be divided into a component force along the first direction and a component force along the second direction. Thus, under the abutting of the guiding inclined surface 310, it is beneficial to ensure the close fit between the second seal 420 and the pen tip body 200 and achieve a better sealing effect.

[0044] It should be noted that the pen tip body 200 has an axial direction and a radial direction. The first direction is the axial direction of the pen tip body 200, and the second direction is the radial direction of the pen tip body 200.

[0045] Reference Figures 3 to 6 , in some embodiments, the pen body 100 is provided with a first protrusion 120, and the outer peripheral wall of the first seal 410 abuts against the first protrusion 120. The fixing frame 300 is provided with a first abutting portion 320 and a second abutting portion 330. The first abutting portion 320 is connected to the second abutting portion 330. Along the first direction, the first protrusion 120 abuts against the first abutting portion 320, and the first seal 410 abuts against the second abutting portion 330. The first seal 410 undergoes elastic deformation under the action of the pen body 100 and the second abutting portion 330. By the abutment of the first protrusion 120 and the first abutting portion 320, it is used to limit the compression amount of the first seal 410 when it abuts against the second abutting portion 330, that is, to limit the range value of the first seal 410 being compressed along the first direction, which is beneficial to ensuring the sealing effect of the first seal 410, so as to prevent sundries such as water stains from entering the accommodation cavity 110 through the gap between the pen body 100 and the fixing frame 300, and can also prevent the first seal 410 from being damaged due to excessive extrusion.

[0046] It should be noted that the compression amount of the first seal 410 refers to the difference between the extended dimension of the first seal 410 during assembly and the extended dimension of the first seal 410 after being compressed along the first direction. Limiting the compression amount of the first seal 410 is beneficial to ensuring the waterproof effect of the electronic pen structure and can prevent the first seal 410 from being damaged and becoming ineffective.

[0047] Reference Figures 3 to 6 , in some other embodiments, the fixing frame 300 is provided with a first abutting portion 320, a second abutting portion 330 and a guiding inclined surface 310. Along the first direction, the first protrusion 120 abuts against the first abutting portion 320, and the first seal 410 abuts against the second abutting portion 330. The abutment of the first protrusion 120 and the first abutting portion 320 limits the compression amount of the first seal 410. The guiding inclined surface 310 abuts against the second seal 420 along the first direction, which is used to ensure the close fit between the second seal 420 and the pen tip body 200, and between the second seal 420 and the guiding inclined surface 310. The mutual cooperation of the fixing frame 300, the first seal 410 and the second seal 420 is used to separate the first seal 410 and the second seal 420 along the first direction and maintain an appropriate compression amount, which is beneficial to increasing the overall waterproof performance of the electronic pen structure.

[0048] Reference Figures 3 to 6, in some embodiments, a first groove 220 is provided on the outer peripheral wall of the pen tip body 200. The first groove 220 is located within the accommodation cavity 110. A part of the second seal 420 is located in the first groove 220. The first groove 220 is used to restrict the movement of the second seal 420 relative to the pen tip body 200 in the first direction. Additionally, compared with the second seal 420 directly abutting against the pen tip body 200, the provision of the first groove 220 can increase the contact area between the second seal 420 and the pen tip body 200, which is beneficial to further enhancing the waterproof effect of the electronic pen structure.

[0049] Specifically, the second seal 420 can be an elastic sealing ring. The second seal 420 surrounds and abuts against the groove wall of the first groove 220. Along the first direction, the fixing bracket 300 abuts against the second seal 420. The abutment between the second seal 420 and the groove wall of the first groove 220 includes abutting against the side wall of the first groove 220 in the first direction and abutting against the bottom wall of the first groove 220 in the second direction, which helps to further enhance the waterproof sealing effect.

[0050] Reference Figures 3 to 6 , in some other embodiments, the fixing bracket 300 is provided with a guiding inclined surface 310. The guiding inclined surface 310 abuts against the second seal 420 so that a part of the second seal 420 is located in the first groove 220. The provision of the guiding inclined surface 310 further enhances the fitting between the second seal 420 and the groove wall of the first groove 220, which is beneficial to further enhancing the waterproof performance of the electronic pen structure.

[0051] Reference Figures 3 to 6 , in some embodiments, the pen tip body 200 includes a nib portion 210 and a connecting portion 230. At least a part of the nib portion 210 is located outside the accommodation cavity 110, and the connecting portion 230 is located within the accommodation cavity 110. The connecting portion 230 is detachably connected to the nib portion 210, which facilitates the disassembly, assembly and replacement of the nib portion 210. Along the first direction, the fixing bracket 300 abuts against the second seal 420, and the second seal 420 abuts against the connecting portion 230. The second seal 420 is used to provide a seal between the fixing bracket 300 and the connecting portion 230 to prevent water stains from entering the accommodation cavity 110 between the fixing bracket 300 and the connecting portion 230, ensuring the waterproof effect of the electronic pen structure.

[0052] Specifically, the connection manner between the nib portion 210 and the connection portion 230 can be a detachable connection manner such as insertion connection or snap connection. The connection portion 230 is provided with a connection through hole along the first direction. A part of the nib portion 210 penetrates into the connection through hole along the first direction to realize the connection between the nib portion 210 and the connection portion 230, and at least a part of the nib portion 210 is exposed outside the accommodation cavity 110. The part of the nib portion 210 exposed outside the accommodation cavity 110 is used to contact the touch screen. The connection portion 230 is connected to the strain module and is used to fix the strain module. The nib portion 210 is connected to the strain module and is used to transmit pressure signals.

[0053] Reference Figures 3 to 6 , in some embodiments, the pen tip body 200 includes a pen tip 214. The pen tip 214 can be a part of the nib portion 210. The pen tip 214 is exposed outside the accommodation cavity 110. Along the first direction, the gap distance between the pen tip 214 and the pen body 100 is a first distance. The abutting area between the fixing frame 300 and the second seal 420 is a first area. The abutting area between the pen tip body 200 and the second seal 420 is a second area. Specifically, the pen tip body 200 includes a nib portion 210 and a connection portion 230. At least a part of the nib portion 210 is located outside the accommodation cavity 110, and the connection portion 230 is located in the accommodation cavity 110. The abutting area between the connection portion 230 and the second seal 420 is the second area. Along the first direction, the maximum distance between the first area and the second area is a second distance, and along the first direction, the second seal 420 has a first dimension when not compressed. The first dimension is greater than the second distance to ensure that the second seal 420 is compressed by the fixing frame 300 and the pen tip body 200. The difference between the first dimension and the second distance is greater than the first distance, which is used to ensure that when the nib portion 210 is stationary or moves relative to the pen body 100 along the first direction, the second seal 420 is always in a compressed state, ensuring the waterproof effect of the electronic pen structure.

[0054] For example, the second seal 420 selected in the present application has an initial state and a compressed state. In the initial state, the second seal 420 has a first dimension in the first direction. When the second seal 420 is abutted by the fixing frame 300 and the connecting portion 230, the second seal 420 is compressed and is in the compressed state at this time. After the second seal 420 is compressed, the extension dimension in the first direction decreases, but the first dimension remains unchanged. The maximum distance between the fixing frame 300 and the connecting portion 230 is the second distance, and the first dimension is greater than the second distance, which is used to ensure that the second seal 420 is always in the compressed state after assembly to ensure the sealing performance of the electronic pen structure. There is a difference between the first dimension and the second distance, and this difference is the compression amount of the second seal 420. The difference between the first dimension and the second distance is greater than the first distance, that is, the compression amount of the second seal 420 is greater than the first distance, which is used to ensure that when the pen tip 214 is in any position, the second seal 420 is always in the compressed state, thereby ensuring the sealing between the fixing frame 300 and the connecting portion 230 by the second seal 420.

[0055] It should be noted that the pen tip 214 drives the connecting portion 230 to be able to move relative to the pen body 100 in the first direction. The first distance changes with the movement of the pen tip 214, and the second distance also changes with the change of the first distance. When the first distance decreases, the second distance increases, and the compression amount of the second seal 420 also decreases. The measurement of the first distance and the second distance should be carried out in the assembled state of the electronic pen structure, and the first dimension should be measured in the non-assembled state.

[0056] Reference Figures 3 to 6 , in some embodiments, the pen tip body 200 includes a pen tip portion 210 and a connecting portion 230. A second protrusion 211 is convexly provided on the outer peripheral wall of the pen tip portion 210, and a second groove 231 is concavely provided on the inner peripheral wall of the connecting portion 230. The second protrusion 211 is located in the second groove 231, which is used to realize the detachable connection between the pen tip portion 210 and the connecting portion 230. The cooperation between the second protrusion 211 and the second groove 231 can increase the contact area between the pen tip portion 210 and the connecting portion 230 and improve the sealing performance between the pen tip portion 210 and the connecting portion 230.

[0057] Specifically, the second protrusion 211 and the second groove 231 extend along the second direction. The connecting portion 230 is provided with a connecting through hole in the first direction, and the second groove 231 is concavely provided on the hole wall of the connecting through hole. The pen tip portion 210 penetrates into the connecting through hole in the first direction, and the second protrusion 211 is located in the second groove 231, thereby realizing the connection between the pen tip portion 210 and the connecting portion 230. At least one of the pen tip portion 210 and the connecting portion 230 can generate elastic deformation to provide deformation avoidance when the pen tip portion 210 penetrates into the connecting through hole in the first direction, which is convenient for the connection and cooperation between the pen tip portion 210 and the connecting portion 230.

[0058] ReferenceFigures 3 to 6 In some embodiments, a plurality of second protrusions 211 protrude from the outer peripheral wall of the nib portion 210. The plurality of second protrusions 211 are arranged at intervals in the first direction. A plurality of second grooves 231 are provided on the inner peripheral wall of the connecting portion 230. The plurality of second grooves 231 are arranged at intervals in the first direction. The number of the second protrusions 211 is equal to the number of the second grooves 231, and each second protrusion 211 is in one-to-one correspondence and cooperation with each second groove 231, further increasing the connection stability between the nib portion 210 and the connecting portion 230 and increasing the sealing performance between the nib portion 210 and the connecting portion 230.

[0059] It should be noted that, along the first direction, the interval between the plurality of second protrusions 211 can also be understood as the second groove 231, and the groove walls between the plurality of second grooves 231 can also be understood as the second protrusion 211. The connection between the nib portion 210 and the connecting portion 230 can be a threaded connection, which can not only make the connection between the nib portion 210 and the connecting portion 230 more stable, but also improve the sealing performance between the nib portion 210 and the connecting portion 230.

[0060] Reference Figures 3 to 6 In some embodiments, the pen tip body 200 includes a nib portion 210. The nib portion 210 includes a pen core 212 and an insulating layer 213. The insulating layer 213 covers the outer peripheral wall of the pen core 212, preventing moisture from penetrating and contacting the pen core 212, avoiding short circuits and corroding the pen core 212, which is beneficial to ensuring the normal use of the electronic pen structure.

[0061] Specifically, a strain module is accommodated in the accommodation cavity 110. The pen core 212 is disposed through the accommodation cavity 110 in the first direction and connected to the strain module. The pen core 212 is used to transmit the stress deformation information generated by the contact between the nib portion 210 and the touch screen, thereby driving the strain gauge of the strain module to deform. The pen core 212 is a conductor, and the insulating layer 213 covers the pen core 212, which can prevent water stains from contacting the pen core 212 through the gap between the pen tip body 200 and the pen body 100, which is beneficial to improving the waterproof performance of the electronic pen structure.

[0062] It should be noted that the pen core 212 transmits the stress deformation information in the form of current and voltage signals to achieve the pressure sensing function.

[0063] Reference Figures 3 to 6, in some other embodiments, the inner peripheral wall of the insulating layer 213 is in contact with the refill 212. The outer peripheral wall of the insulating layer 213 is provided with a plurality of second protrusions 211. The inner peripheral wall of the connecting portion 230 is provided with a plurality of second grooves 231. The number of the second protrusions 211 is equal to that of the second grooves 231. Each second protrusion 211 is correspondingly located in each second groove 231. The insulating layer 213 is made of an elastic material. When the nib portion 210 penetrates into the connecting through hole in the first direction, the second protrusions 211 are elastically deformed to avoid the connecting portion 230. When the second protrusions 211 move to the positions corresponding to the second grooves 231, the second protrusions 211 recover their deformation and cooperate with the second grooves 231 to realize the connection between the nib portion 210 and the connecting portion 230. The insulating layer 213 can be made of materials such as rubber or silica gel that have insulating properties and can produce a certain amount of elastic deformation, which is beneficial to better fit with the connecting portion 230 and improve the waterproof performance of the waterproof device.

[0064] Reference Figures 1 to 6 , in some embodiments, the electronic pen structure further includes a strain module and the nib body 200 in any of the above embodiments. The strain module is located in the accommodation cavity 110. The nib body 200 penetrates through the accommodation cavity 110 in the first direction and is connected to the strain module. The fixing frame 300, the first seal 410 and the second seal 420 cooperate with each other to limit water stains from entering the accommodation cavity 110, prevent the strain module from contacting water, ensure the normal use of the strain module, and is beneficial to extending the service life of the electronic pen structure.

[0065] The above has described the embodiments of the present application in detail with reference to the drawings. However, the present application is not limited to the above embodiments. Various changes can be made without departing from the spirit of the present application within the scope of knowledge possessed by those of ordinary skill in the art. In addition, the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

Claims

1. An electronic pen structure, characterized in that: include: The pen body is provided with a receiving cavity; A pen head body is arranged in the accommodating cavity along a first direction, and at least a pen tip is exposed on the pen head body; A fixing frame, located in the accommodating cavity; A first sealing member and a second sealing member are both located in the accommodating cavity, and the second sealing member surrounds and abuts against the outer peripheral wall of the pen head body; Among them, along the first direction, the pen body abuts the first seal, the first seal abuts the fixing frame, the fixing frame abuts the second seal, the second seal abuts the nib body, the pen body and the fixing frame jointly compress the first seal, and the fixing frame and the nib body jointly compress the second seal.

2. The electronic pen structure according to claim 1, characterized in that: Along the first direction, the fixed frame is provided with a fixed through hole, and a guide slope is provided on the side of the fixed through hole close to the second sealing member, so that the aperture of part of the fixed through hole gradually increases. Along the first direction, the pen tip body is passed through the fixed through hole, and the guide slope abuts against the second sealing member. The second sealing member abuts against the pen tip body along the first direction and the second direction, and the first direction is perpendicular to the second direction.

3. The electronic pen structure according to claim 1, characterized in that: The pen body is provided with a first protrusion, the outer peripheral wall of the first seal abuts against the first protrusion, the fixing frame is provided with a first abutting portion and a second abutting portion, the first abutting portion is connected to the second abutting portion, along the first direction, the first seal abuts against the second abutting portion, and the first protrusion abuts against the first abutting portion.

4. The electronic pen structure according to claim 1, characterized in that: A first groove is provided on the outer peripheral wall of the pen head body. The first groove is located in the accommodating cavity, and a part of the second sealing member is located in the first groove.

5. The electronic pen structure according to claim 1, characterized in that: The pen tip body includes a nib portion and a connecting portion, at least a portion of the nib portion is located outside the accommodating cavity, the connecting portion is located in the accommodating cavity, the connecting portion is detachably connected to the nib portion, and along the first direction, the second sealing member abuts against the connecting portion.

6. The electronic pen structure according to claim 1, characterized in that: The nib body includes a nib, which is exposed in the accommodating cavity. Along the first direction, the distance between the nib and the pen body is a first distance, the abutting area between the fixing frame and the second seal is a first area, and the abutting area between the nib body and the second seal is a second area. Along the first direction, the maximum distance between the first area and the second area is a second distance, and the second seal has a first size when not compressed, the first size is greater than the second distance, and the difference between the first size and the second distance is greater than the first distance.

7. The electronic pen structure according to claim 1, characterized in that: The pen tip body comprises a nib portion and a connecting portion, the outer peripheral wall of the nib portion is convexly provided with a second protrusion, the inner peripheral wall of the connecting portion is concavely provided with a second groove, and the second protrusion is located in the second groove.

8. The electronic pen structure according to claim 7, characterized in that: A plurality of the second protrusions are arranged at intervals along the first direction, a plurality of the second grooves are arranged at intervals along the first direction, the number of the second protrusions is equal to the number of the second grooves, and each of the second protrusions is matched with each of the second grooves in a one-to-one correspondence.

9. The electronic pen structure according to claim 1, characterized in that: The pen head body comprises a pen tip portion, the pen tip portion comprises a pen core and an insulating layer, and the insulating layer covers the outer peripheral wall of the pen core.

10. The electronic pen structure according to any one of claims 1 to 9, characterized in that: The electronic pen structure further includes a strain module, and the strain module is connected to the pen head body.

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