Pens and electronic devices

Abstract

This application discloses a pen and an electronic device, belonging to the field of electronic product design technology. The disclosed pen includes a pen tip module, a pen refill module, and a pen barrel module. The pen tip module includes a writing part and a first connecting part. The writing part is connected to a first end of the first connecting part, which is movably disposed within the pen barrel module. The pen refill module is disposed within the pen barrel module and includes a first support frame, a strain gauge, and a pre-compression component. Both the first support frame and the pre-compression component are connected to the pen barrel module. The second end of the first connecting part passes through the first support frame along the compression direction of the pen tip module and is connected to the strain gauge. The second end is clearance-fitted with the first support frame. The pre-compression component is disposed on the side of the strain gauge away from the first support frame, and the strain gauge is in a deformed state under the action of the pre-compression component. When the writing part is subjected to force, the writing part drives the first connecting part to move along the compression direction, and the second end drives the strain gauge to reduce the deformation of the strain gauge.

Description

Technical Field

[0001] This application belongs to the field of electronic product design technology, specifically relating to a pen and an electronic device. Background Technology

[0002] As the market demand for consumer electronics products such as tablets gradually increases, the demand for styluses used with these products is also gradually increasing. There are many types of styluses on the market, among which active capacitive styluses are adopted by many manufacturers due to their unique advantages. These styluses generally use strain gauges to detect the user's writing pressure while improving the user's writing experience.

[0003] When writing with this type of stylus, there is a gap between the pen tip module and the pen barrel module, and the strain gauge is directly welded to the pen tip module. Therefore, when the pen tip module is compressed and moves towards the pen barrel module, the gap will gradually decrease, and the strain gauge will deform. If the user uses the stylus for writing for a long time, the strain gauge will always be in a state of large deformation, which will have an adverse effect on the strain gauge's ability to recover deformation. In severe cases, the strain gauge will be greatly damaged, thus increasing the risk of strain gauge failure.

[0004] In summary, the styluses involved in the relevant technologies have a problem with strain gauge failure. Summary of the Invention

[0005] The purpose of this application is to provide a pen and electronic device that can solve the problem that strain gauges in pens are prone to failure in related technologies.

[0006] This application provides a pen, including a pen tip module, a pen refill module, and a pen holder module;

[0007] The pen tip module includes a writing section and a first connecting section. The writing section is connected to a first end of the first connecting section, and the first connecting section is movably disposed within the pen holder module.

[0008] The pen refill module is disposed within the pen barrel module. The pen refill module includes a first support frame, a strain gauge, and a pre-compression component. Both the first support frame and the pre-compression component are connected to the pen barrel module. The second end of the first connecting portion passes through the first support frame along the compression direction of the pen tip module and is connected to the strain gauge. The second end is clearance-fitted with the first support frame. The pre-compression component is disposed on the side of the strain gauge away from the first support frame, and under the action of the pre-compression component, the strain gauge is in a deformed state.

[0009] When the writing part is under stress, the writing part drives the first connecting part to move along the pressure direction, and the second end drives the strain gauge to reduce the deformation of the strain gauge.

[0010] This application provides an electronic device, including the pen described above.

[0011] In this embodiment, the first connecting part of the pen tip module is movably disposed within the pen barrel module. The first support frame and the pre-compression member of the pen refill module are both connected to the pen barrel module. The first support frame is clearance-fitted with the second end of the first connecting part, which is connected to the strain gauge of the pen refill module. The strain gauge is disposed between the first support frame and the pre-compression member. Under the action of the pre-compression member, the strain gauge is in a deformed state, i.e., the strain gauge has an initial degree of deformation. When the user writes with the pen, the pen tip module is compressed, causing the writing part to drive the first connecting part to move within the pen barrel module. This causes the strain gauge, which is in a deformed state, to recover its deformation towards the pre-compression member. In other words, the user's writing force can offset the initial deformation of the strain gauge, so that the degree of deformation of the strain gauge gradually decreases, or even the strain gauge does not deform. Therefore, when the user writes with the pen for a long time, the strain gauge is always in a state of small or no deformation. Thus, the damage to the strain gauge is small, and the risk of strain gauge failure is small, i.e., the strain gauge is less likely to fail. Attached Figure Description

[0012] Figure 1 This is an exploded view of the pen disclosed in an embodiment of this application;

[0013] Figure 2 This is a schematic diagram of the pen tip module disclosed in the embodiments of this application;

[0014] Figure 3 This is a schematic diagram of the pen refill module disclosed in the embodiments of this application;

[0015] Figure 4 This is a schematic diagram of the structure of the pen holder module disclosed in the embodiments of this application;

[0016] Figures 5 to 8 This is a partial cross-sectional view of the pen disclosed in an embodiment of this application;

[0017] Figure 9 This is a schematic diagram of the strain gauge structure disclosed in the embodiments of this application.

[0018] Explanation of reference numerals in the attached figures:

[0019] 100-Pen tip module, 110-Writing part, 111-Second protrusion, 120-First connecting part, 121-First end, 122-Second end, 130-Pen tip electrode part;

[0020] 200-Pen refill module, 210-First support frame, 220-Strain gauge, 221-Deformation part, 222-Second connecting part, 223-Second limiting gap, 230-Pre-compression component, 231-First magnetic component, 232-Second magnetic component, 240-Mounting component, 241-Fixed seat, 242-Adjusting seat, 250-Guide component, 251-Guide body, 252-First protrusion, 260-Spring pin, 270-Second support frame, 271-First limiting gap, 280-Third support frame, 290-Steel sleeve;

[0021] 300-Pen Holder Module;

[0022] 400 - Limiting component, 410 - Third limiting gap;

[0023] 500-sensor. Detailed Implementation

[0024] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0025] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0026] The pen disclosed in this application will be described in detail below with reference to the accompanying drawings, through specific embodiments and application scenarios.

[0027] Please refer to Figures 1-9 This application discloses a pen, which includes a pen tip module 100, a pen refill module 200, and a pen holder module 300.

[0028] The pen tip module 100 is a component of the pen used for writing. Specifically, the pen tip module 100 includes a writing part 110 and a first connecting part 120. The writing part 110 is used to contact the screen of the electronic device. The first end 121 of the first connecting part 120 is connected to the writing part 110. The first connecting part 120 is movably disposed in the pen holder module 300. That is, when the user writes with the pen, the pen tip module 100 is pressed, that is, the writing part 110 is subjected to pressure, and the writing part 110 drives the first connecting part 120 to move within the pen holder module 300.

[0029] The pen refill module 200 is the core component of the pen, housed within the pen holder module 300, which protects the pen refill module 200. The pen refill module 200 includes a first support frame 210, a strain gauge 220, and a pre-compression component 230. The strain gauge 220 is the main component for detecting the user's writing pressure. A sensor 500 is mounted on the strain gauge 220. The sensor 500 detects the degree of deformation of the strain gauge 220 to detect the user's writing pressure; that is, the pen disclosed in this application completes the sensing of the user's writing pressure. Optionally, the strain gauge 220 can be a strain gauge steel sheet.

[0030] The first support frame 210 and the pre-compression component 230 are both connected to the pen holder module 300. The second end 122 of the first connecting part 120 passes through the first support frame 210 along the compression direction of the pen tip module 100 and is connected to the strain gauge 220. The second end 122 is clearance-fitted with the first support frame 210, that is, when the first connecting part 120 moves in the pen holder module 300, the first support frame 210 does not move with the movement of the first connecting part 120.

[0031] The pre-compression member 230 can provide a certain pre-compression to the strain gauge 220 so that the strain gauge 220 has an initial degree of deformation. Specifically, the pre-compression member 230 is located on the side of the strain gauge 220 away from the first support frame 210, and under the action of the pre-compression member 230, the strain gauge 220 is in a deformed state, that is, the strain gauge 220 has an initial degree of deformation. The deformation direction of the strain gauge 220 is away from the pre-compression member 230, that is, the strain gauge 220 deforms towards the side closer to the first support frame 210.

[0032] When the writing part 110 is under force, the writing part 110 drives the first connecting part 120 to move along the pressure direction of the pen tip module 100. The second end 122 of the first connecting part 120 drives the strain gauge 220 to move towards the pre-compression member 230 to reduce the deformation of the strain gauge 220. Even if the strain gauge 220 undergoes a small deformation or returns to a state without deformation, during the process of recovering the deformation, the sensor 500 detects the signal of the recovered deformation. That is, the sensor 500 generates a difference signal corresponding to the magnitude of the deformation. This difference is the magnitude of the user's writing pressure. That is, the pen disclosed in this application completes the detection of the user's writing force.

[0033] This application uses a pre-compression component 230 to subject the strain gauge 220 to an initial pre-compression, that is, this application adopts a reverse compression form. Even if the user writes with a large force, the strain gauge 220 is always subject to pre-compression. Therefore, when the user writes, the strain gauge 220 is less likely to undergo excessive deformation, and thus the degree of damage to the strain gauge 220 is smaller.

[0034] In this embodiment, the first connecting portion 120 of the pen tip module 100 is movably disposed within the pen barrel module 300. The first support frame 210 and the pre-compression member 230 of the pen refill module 200 are both connected to the pen barrel module 300. The first support frame 210 is clearance-fitted with the second end of the first connecting portion 120, and the second end is connected to the strain gauge 220 of the pen refill module 200. The strain gauge 220 is disposed between the first support frame 210 and the pre-compression member 230. Under the action of the pre-compression member 230, the strain gauge 220 is in a deformed state, that is, the strain gauge 220 has an initial degree of deformation. When a user writes with a pen, the pen tip module 100 is compressed, causing the writing part 110 to move the first connecting part 120 within the pen holder module 300. This causes the strain gauge 220, which is in a deformed state, to recover its deformation towards the pre-compression member 230. In other words, the user's writing force can counteract the initial deformation of the strain gauge 220, gradually reducing its deformation, or even preventing it from deforming altogether. Therefore, when a user writes with a pen for an extended period, the strain gauge 220 remains in a state of minimal or no deformation. Consequently, the damage to the strain gauge 220 is minimal, and the risk of failure is low; that is, the strain gauge 220 is less prone to failure.

[0035] Optionally, the first support frame 210 and the pre-compression component 230 can be directly connected to the pen holder module 300. To further protect the first support frame 210 and the pre-compression component 230, in another embodiment, the first support frame 210 and the pre-compression component 230 can be indirectly connected to the pen holder module 300. Specifically, the pen refill module 200 can also include a steel sleeve 290, which can be fixedly disposed inside the pen holder module 300. The first support frame 210 and the pre-compression component 230 can be disposed inside the steel sleeve 290 and fixedly connected to the steel sleeve 290. That is, the first support frame 210 and the pre-compression component 230 are indirectly connected to the pen holder module 300 through the steel sleeve 290, and the pen holder module 300 and the steel sleeve 290 simultaneously serve to protect the first support frame 210 and the pre-compression component 230.

[0036] Optionally, the pen refill module 200 also includes a mounting component 240. The pre-compression component 230 is connected to the pen holder module 300 through the mounting component 240. The pre-compression component 230 is located between the strain gauge 220 and the mounting component 240. Under the action of the pre-compression component 230, the strain gauge 220 is always in a deformed state, and the strain gauge 220 does not contact the first support frame 210. That is, the distance between the strain gauge 220 and the first support frame 210 is large. If the pre-compression component 230 has a large pre-compression force at this time, the strain gauge 220 is prone to excessive deformation, which may lead to the strain gauge 220 being at risk of failure.

[0037] To avoid the aforementioned risks, in another embodiment, at least a portion of the strain gauge 220 is in contact with the first support frame 210. That is, under the pre-compression of the pre-compression member 230, the strain gauge 220 deforms, and at least a portion of the strain gauge 220 is in contact with the first support frame 210, i.e., at least a portion of the strain gauge 220 abuts against the first support frame 210. Even if the pre-compression of the strain gauge 220 is large, since the distance between the first support frame 210 and the strain gauge 220 is small, optionally, this distance can be a second limiting gap 223, which is less than or equal to the maximum deformation of the strain gauge 220. This allows the first support frame 210 to limit the excessive deformation of the strain gauge 220. Therefore, this arrangement can prevent the strain gauge 220 from failing due to excessive deformation.

[0038] Optionally, the preload element 230 can be an elastic element, which can be a component with elastic properties such as a spring. One end of the elastic element is connected to the strain gauge 220, and the other end is connected to the mounting component 240. That is, the elastic element is located between the strain gauge 220 and the mounting component 240, and the elastic element is in a compressed state. Since the strain gauge 220 is relatively easy to deform, the elastic element can drive the strain gauge 220 to deform. That is, under the action of the elastic element, the strain gauge 220 is in a deformed state. This arrangement of using the elastic element as the preload element 230 makes the structure of the preload element 230 relatively simple. However, since the elastic element is located between the strain gauge 220 and the mounting component 240, the elastic element occupies a large space, which is not conducive to the arrangement of other components.

[0039] To avoid the aforementioned problems, in another embodiment, the pre-compression component 230 includes a first magnetic component 231 and a second magnetic component 232. The first magnetic component 231 is disposed on the strain gauge 220, and the second magnetic component 232 is disposed on the mounting component 240. At least a portion of the first magnetic component 231 and the second magnetic component 232 are arranged opposite to each other and repulsively, that is, the same magnetic poles of the first magnetic component 231 and the second magnetic component 232 are arranged opposite to each other, so that a repulsive force is generated between the first magnetic component 231 and the second magnetic component 232. This repulsive force can drive the strain gauge 220 to deform in a direction closer to the first support frame 210, that is, in a direction opposite to the compression direction of the pen tip module 100. Since the first magnetic component 231 and the second magnetic component 232 do not contact each other, and the first magnetic component 231 and the second magnetic component 232 are relatively small, the first magnetic component 231 and the second magnetic component 232 occupy less space in the pen, which is beneficial to the arrangement of other components.

[0040] Furthermore, the first magnetic element 231 can be embedded in the strain gauge 220, and the second magnetic element 232 can be embedded in the mounting component 240. This arrangement can further reduce the space occupied by the first magnetic element 231 and the second magnetic element 232. Of course, the first magnetic element 231 can be fixed to the center of the strain gauge 220 by dispensing adhesive, and the second magnetic element 232 can be fixed to the center of the mounting component 240 by dispensing adhesive. This embodiment of the application does not impose specific limitations on this.

[0041] Optionally, the mounting component 240 can be fixedly installed in the pen holder module 300 by the steel sleeve 290 mentioned above. That is, the position of the mounting component 240 in the pen holder module 300 remains unchanged, and the position of the pre-compression component 230 on the mounting component 240 remains unchanged. As a result, the magnitude of the pre-compression force of the pre-compression component 230 on the strain gauge 220 remains unchanged, that is, the initial force and deformation of the strain gauge 220 remain unchanged.

[0042] In another embodiment, the pre-pressure applied by the pre-compression member 230 to the strain gauge 220 is variable. Specifically, the mounting member 240 includes a fixed base 241 and an adjusting base 242. The fixed base 241 is fixedly connected to the pen holder module 300, and the fixed base 241 is movably connected to the adjusting base 242. The pre-compression member 230 is disposed on the adjusting base 242. By adjusting the adjusting base 242, the adjusting base 242 can be moved closer to or further away from the strain gauge 220, thereby adjusting the magnitude of the pre-pressure applied to the strain gauge 220 to accommodate differences in writing pressure from different users. Specifically, if the user's writing pressure is too strong, the pre-pressure applied to the strain gauge 220 can be appropriately increased; conversely, if the user's writing pressure is too weak, the pre-pressure applied to the strain gauge 220 can be appropriately decreased. With this setting, regardless of the user's writing pressure, the deformation of the strain gauge 220 can more accurately adapt to the pressure applied by the user, thereby improving the accuracy of pressure detection.

[0043] Optionally, the fixed seat 241 may be provided with internal threads, and the adjusting seat 242 may be provided with external threads. That is, the fixed seat 241 and the adjusting seat 242 are movably connected through threaded engagement. This arrangement allows the adjusting seat 242 to move closer to or further away from the strain gauge 220 by adjusting the amount of threaded engagement between the fixed seat 241 and the adjusting seat 242.

[0044] In one embodiment, the first connecting part 120 is indirectly connected to the pen holder module 300 through the first support frame 210 and the strain gauge 220. That is, when the user shakes the pen, the pen tip module 100 is less likely to shake relative to the pen holder module 300. In other words, this setting can achieve a shake-free experience for the pen tip module 100.

[0045] To further avoid the wobbling problem of the pen tip module 100, and to further achieve a wobbling-free experience of the pen tip module 100, in another embodiment, the pen also includes a limiting member 400. The limiting member 400 is sleeved on the writing part 110 and is in clearance fit with the writing part 110. At least a portion of the limiting member 400 is sleeved inside the pen holder module 300. In the setting direction of the writing part 110, the limiting member 400 and the pen holder module 300, the gap between the writing part 110 and the limiting member 400 and the gap between the limiting member 400 and the pen holder module 300 are both small. That is, the limiting member 400 can limit the wobbling of the writing part 110 in the above-mentioned setting direction, thereby further achieving a wobbling-free experience of the pen tip module 100.

[0046] In the pressure direction of the pen tip module 100, the limiting member 400 and the writing part 110 are in a limiting cooperation, that is, there is a certain limiting gap between the limiting member 400 and the writing part 110. This limiting gap can be a third limiting gap 410. The third limiting gap 410 is the maximum movement distance of the writing part 110 in the pressure direction, that is, the range of movement of the writing part 110 under pressure. The size of the third limiting gap 410 must be less than or equal to the maximum deformation of the strain gauge 220. This can prevent the writing part 110 from moving too far in the pressure direction, which would cause the strain gauge 220 to deform too much and fail.

[0047] In addition, the limiting member 400 can be a metal part, which can enhance the strength of the pen tip module 100 under lateral force without interfering with the installation of the pen tip module 100 to the pen barrel module 300, that is, strengthen the mechanical strength of the pen barrel module 300 at the pen tip module 100. The direction of the lateral force is perpendicular to the axis of the pen. At the same time, the limiting member 400 can also serve as a decorative pen.

[0048] Optionally, the first connecting part 120 can be directly slidably engaged with the pen holder module 300, that is, the first connecting part 120 is slidably disposed within the pen holder module 300. However, this arrangement may result in the first connecting part 120 being too large and thus too heavy. Therefore, when writing, the user needs to exert greater writing force to overcome the weight of the first connecting part 120, thereby causing the first connecting part 120 to drive the strain gauge 220 to deform. However, this arrangement makes the writing force detected by the pen inaccurate.

[0049] To address the aforementioned issues, in another embodiment, the pen refill module 200 further includes a guide member 250 connected to the pen holder module 300. Specifically, the guide member 250 is connected to the pen holder module 300 via a steel sleeve 290. The guide member 250 can be fixedly disposed within the steel sleeve 290. The first connecting portion 120 slidably engages with the guide member 250. The guide member 250 guides and restricts the movement of the first connecting portion 120. Since the first connecting portion 120 is slidably disposed within the guide member 250, the size of the first connecting portion 120 can be reduced compared to the aforementioned solution, thereby reducing the weight of the first connecting portion 120. Consequently, the user needs to overcome less weight from the first connecting portion 120, resulting in a smaller error in the pen's detection of the user's writing force.

[0050] Optionally, during the installation of the guide 250, to ensure connection strength, the entire outer surface of the guide 250 can be connected to the pen holder module 300. This connection method is generally welding. Welding is generally used to connect two components that are close to each other. That is, the entire outer surface of the guide 250 needs to be close to the pen holder module 300. However, this setting method may result in a larger size of the guide 250, and consequently a larger weight of the guide 250. This may lead to a heavier pen, thereby reducing the user's writing experience.

[0051] Therefore, to improve the user's writing experience, in another embodiment, the guide 250 includes a guide body 251 and a first protrusion 252. The first protrusion 252 protrudes from the guide body 251 toward the pen holder module 300. The guide body 251 is slidably engaged with the first connecting portion 120, and the first protrusion 252 is fixedly connected to the pen holder module 300. For example, a portion of the guide 250 is close to the pen holder module 300, and the guide 250 is installed by welding a portion of the guide 250, i.e., by welding the first protrusion 252 to the pen holder module 300. This arrangement reduces the overall weight of the guide 250 to some extent, thereby reducing the weight of the pen and improving the user's writing experience.

[0052] Optionally, the number of first protrusions 252 may be one. However, to ensure connection strength, in another embodiment, the number of first protrusions 252 is at least two. The at least two first protrusions 252 are evenly and spaced apart along the circumference of the guide body 251, and the at least two first protrusions 252 are fixedly connected to the pen holder module 300, so that the guide member 250 is more stably disposed in the pen holder module 300, thereby enabling the guide member 250 to play a more stable guiding role.

[0053] Optionally, the writing part 110 is provided with an external thread, and the first connecting part 120 is provided with an internal thread hole. The writing part 110 and the first connecting part 120 are detachably connected by a threaded engagement. The pen tip module 100 also includes a pen tip electrode part 130, which is a metal part and is embedded in the writing part 110. The pen refill module 200 also includes a spring pin 260, which is disposed in the first connecting part 120. Specifically, the spring pin 260 is fixedly disposed in the internal thread hole of the first connecting part 120. The writing part 110 and the first connecting part 120 are connected by a thread so that the pen tip electrode part 130 contacts the spring pin 260 and is electrically connected to the spring pin 260. At the same time, the spring pin 260 is electrically connected to the pen's circuit board to achieve electrode conduction, that is, when the user uses the pen to write, signal transmission between the pen and the electronic device is realized.

[0054] To further improve the reliability of electrode conduction, i.e. to ensure the stability of signal transmission, in another embodiment, the amount of thread engagement between the writing part 110 and the first connecting part 120 is increased so that the pen tip electrode part 130 abuts against the spring pin 260, i.e., the pen tip electrode part 130 and the spring pin 260 are in pre-pressed contact so that the spring pin 260 is compressed. This arrangement can improve the reliability of electrode conduction between the pen tip electrode part 130 and the spring pin 260, i.e. to ensure the stability of electrical connection.

[0055] Furthermore, since the spring pin 260 can elastically deform, when the writing part 110 and the first connecting part 120 are threadedly connected, if the pen tip electrode part 130 is already in contact with the spring pin 260, but the connection between the writing part 110 and the first connecting part 120 is not stable enough, the elastic deformation of the spring pin 260 allows the threaded connection between the writing part 110 and the first connecting part 120 to continue, ensuring connection stability. Therefore, the spring pin 260 can solve the problem of unstable connection when the writing part 110 and the first connecting part 120 are connected, and can also absorb the dimensional tolerance problems that exist during the assembly of the writing part 110 and the first connecting part 120.

[0056] Optionally, to limit the range of movement of the writing part 110 within the pen holder module 300 after being compressed, the pen refill module 200 further includes a second support frame 270 connected to the pen holder module 300. In the compression direction of the pen tip module 100, one end of the writing part 110 passes through the second support frame 270. The writing part 110 is provided with a second protrusion 111. A first limiting gap 271 is provided between the side of the second support frame 270 away from the strain gauge 220 and the second protrusion 111. The first limiting gap 271 is the maximum movement distance of the writing part 110 after being compressed. The first limiting gap 271 can be less than or equal to the third limiting gap 410 mentioned above. When the first limiting gap 271 is less than the third limiting gap 410, the range of deformation of the writing part 110 under pressure can be further limited to further avoid excessive deformation of the strain gauge 220, that is, to improve the strength of the strain gauge 220 against external forces.

[0057] In the specific design process, the size of the first limiting gap 271 is not adjustable, meaning the size of the first limiting gap 271 remains constant. However, this setting is only applicable to some users or specific situations for detecting writing force. To enable writing force detection for more users and in more writing situations, in another embodiment, the first limiting gap 271 is within the deformation range of the strain gauge 220, and the size of the first limiting gap 271 is adjustable. This setting can satisfy the writing experience of more users, while also preventing excessive deformation of the strain gauge 220 and damage to its function.

[0058] Optionally, the pen refill module 200 also includes a third support frame 280, which serves as a front-end support for supporting and positioning the pen tip module 100. Specifically, one end of the writing part 110 passes through the third support frame 280 and the second support frame 270 in sequence. Thus, both the second support frame 270 and the third support frame 280 are used for supporting and positioning the pen tip module 100. The second support frame 270 serves as a connecting support, with one end welded to the steel sleeve 290 and the other end connected to the third support frame 280 via threads. The size of the first limiting gap 271 can be adjusted by adjusting the amount of thread fit between the third support frame 280 and the second support frame 270.

[0059] Optionally, the strain gauge 220 includes a deformation portion 221 and a second connecting portion 222. The second connecting portion 222 is disposed at both ends of the deformation portion 221 and is connected to the first support frame 210. That is, the second connecting portion 222 is fixedly connected to the end of the first support frame 210, and the second end 122 is connected to the deformation portion 221. When the deformation portion 221 does not deform, there is a second limiting gap 223 between the deformation portion 221 and the first support frame 210. The second limiting gap 223 must be less than or equal to the maximum deformation of the deformation portion 221. That is, when the deformation portion 221 deforms, the deformation portion 221 can be limited and matched with the first support frame 210 in the tensile direction of the strain gauge 220 so that the first support frame 210 can prevent the deformation portion 221 from undergoing excessive deformation.

[0060] Optionally, compared to conventional techniques, the size of the pen refill module 200 can be appropriately adjusted to reduce the pen diameter, thereby allowing users to write with a more comfortable pen diameter. At the same time, by adjusting the size of the pen refill module 200, other functional components can be added to meet the needs of different users.

[0061] Optionally, at least one outer surface of the pen holder module 300 can be flat. The purpose of this arrangement is that when the user is not writing, the pen can be placed more stably on the main body of the electronic device or other shelf.

[0062] Optionally, this application also discloses an electronic device, which includes the pen described above, and the pen can be used in conjunction with the main body of the electronic device.

[0063] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A pen, characterized in that, Includes a pen tip module (100), a pen refill module (200), and a pen holder module (300); The pen tip module (100) includes a writing part (110) and a first connecting part (120). The writing part (110) is connected to the first end (121) of the first connecting part (120), and the first connecting part (120) is movably disposed within the pen holder module (300). The pen refill module (200) is disposed within the pen holder module (300). The pen refill module (200) includes a first support frame (210), a strain gauge (220), and a pre-compression component (230). The first support frame (210) and the pre-compression component (230) are both connected to the pen holder module (300). The second end (122) of the first connecting part (120) passes through the first support frame (210) along the compression direction of the pen tip module (100) and is connected to the strain gauge (220). The second end (122) is clearance-fitted with the first support frame (210). The pre-compression component (230) is disposed on the side of the strain gauge (220) away from the first support frame (210). Under the action of the pre-compression component (230), the strain gauge (220) is in a deformed state. When the writing part (110) is under force, the writing part (110) drives the first connecting part (120) to move along the pressure direction, and the second end (122) drives the strain gauge (220) to reduce the deformation of the strain gauge (220).

2. The pen according to claim 1, characterized in that, The pen refill module (200) also includes a mounting component (240). The pre-compression component (230) is connected to the pen holder module (300) through the mounting component (240). The pre-compression component (230) is disposed between the strain gauge (220) and the mounting component (240). Under the action of the pre-compression component (230), the strain gauge (220) is in a deformed state, and at least a portion of the strain gauge (220) is in contact with the first support frame (210).

3. The pen according to claim 2, characterized in that, The pre-compression component (230) includes a first magnetic component (231) and a second magnetic component (232). The first magnetic component (231) is disposed on the strain gauge (220), and the second magnetic component (232) is disposed on the mounting component (240). Under the action of the first magnetic component (231) and the second magnetic component (232), the strain gauge (220) is in a deformed state.

4. The pen according to claim 3, characterized in that, The mounting component (240) includes a fixed base (241) and an adjusting base (242). The fixed base (241) is fixedly connected to the pen holder module (300). The pre-compression component (230) is disposed on the adjusting base (242). The fixed base (241) is movably connected to the adjusting base (242) so that the adjusting base (242) can move closer to or further away from the strain gauge (220).

5. The pen according to claim 1, characterized in that, The pen also includes a limiting member (400), which is sleeved on the writing part (110) and has a clearance fit with the writing part (110). In the pressure direction of the pen tip module (100), the limiting member (400) and the writing part (110) are in a limiting fit.

6. The pen according to claim 1, characterized in that, The pen refill module (200) also includes a guide (250), which is connected to the pen holder module (300), and the first connecting part (120) is slidably engaged with the guide (250).

7. The pen according to claim 6, characterized in that, The guide (250) includes a guide body (251) and a first protrusion (252), the first protrusion (252) protruding from the guide body (251) toward the pen holder module (300), and the first protrusion (252) is fixedly connected to the pen holder module (300).

8. The pen according to claim 7, characterized in that, The number of the first protrusions (252) is at least two, and the at least two first protrusions (252) are evenly and spaced apart along the circumference of the guide body (251).

9. The pen according to claim 1, characterized in that, The writing part (110) is threadedly engaged with the first connecting part (120). The pen tip module (100) also includes a pen tip electrode part (130), which is embedded in the writing part (110). The pen refill module (200) also includes a spring pin (260), which is disposed on the first connecting part (120). The pen tip electrode part (130) abuts against the spring pin (260) and is electrically connected to the spring pin (260).

10. The pen according to claim 1, characterized in that, The pen refill module (200) also includes a second support frame (270), which is connected to the pen holder module (300). In the pressure direction of the pen tip module (100), one end of the writing part (110) passes through the second support frame (270). The writing part (110) is provided with a second protrusion (111). A first limiting gap (271) is provided between the side of the second support frame (270) away from the strain gauge (220) and the second protrusion (111). The first limiting gap (271) is adjustable.

11. The pen according to claim 1, characterized in that, The strain gauge (220) includes a deformation part (221) and a second connecting part (222). The second connecting part (222) is disposed at both ends of the deformation part (221) and is connected to the first support frame (210). The second end (122) is connected to the deformation part (221). The deformation part (221) can be limited and cooperated with the first support frame (210) in the tensile direction of the strain gauge (220).

12. An electronic device, characterized in that, The electronic device includes the pen according to any one of claims 1-11.

Images