Stylus

Abstract

The present application relates to the technical field of styluses. Provided is a stylus. The stylus comprises: a support member, a touch sensor and a housing, wherein the touch sensor is arranged between the support member and the housing, and is arranged around the support member; and a force-applying structure, which is arranged between the housing and the touch sensor and is configured to radially apply pressure to the touch sensor. There is a clearance space between the support member and the housing, the touch sensor at least partially covers the clearance space, and when the touch sensor is pressed by an external force and deformed, the clearance space can provide a space for the deformed touch sensor. The touch detection of the stylus in the embodiments in the present application is more accurate and sensitive.

Description

A stylus

[0001] This application claims priority to Chinese Patent Application No. 202520174141.9, filed on January 24, 2025, entitled "A Stylus Pen", and to Chinese Patent Application No. 202520172117.1, filed on January 24, 2025, entitled "A Stylus Pen", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of stylus technology, specifically to a stylus. Background Technology

[0003] Styluses typically use built-in touch-sensing structures to detect whether someone is holding the stylus, thus distinguishing between use and non-use scenarios to improve the user experience.

[0004] In related technologies, styluses achieve touch detection through touch sensors. The touch sensors have a cylindrical structure and are directly disposed on the inside of the stylus shell.

[0005] However, the touch detection sensitivity of the stylus body in related technologies is relatively poor.

[0006] Application content

[0007] This application aims to provide a stylus that at least solves the problem of poor tactile detection sensitivity of the stylus body.

[0008] To solve the above-mentioned technical problems, this application is implemented as follows:

[0009] This application provides a stylus, including:

[0010] The component includes a support, a touch sensor, and a housing. The touch sensor is positioned between the support and the housing and is arranged around the support.

[0011] A force-applying structure, located between the housing and the touch sensor, is used to apply pressure to the touch sensor in the radial direction;

[0012] A clearance space is provided between the support and the housing; the touch sensor at least partially covers the clearance space;

[0013] When a touch sensor deforms under external pressure, the clearance space can provide space for the deformed touch sensor.

[0014] Optionally, the force-applying structure is a first protrusion structure disposed on the inner wall of the housing, and the first protrusion structure is in contact with the touch sensor;

[0015] The clearance space is formed by a second protrusion structure disposed on the inner wall of the touch sensor or the outer wall of the support, and the first protrusion structure and the second protrusion structure are staggered.

[0016] Optionally, the first protrusion structure is a strip structure; the length extension direction of the first protrusion structure is consistent with the axial direction of the shell; the space formed between adjacent first protrusion structures constitutes the first gap;

[0017] The second protrusion is a strip-shaped structure; the length extension direction of the second protrusion is consistent with the axis of the touch sensor or support; the space formed between adjacent second protrusions constitutes a second gap; the second protrusion is set in correspondence with the first gap; the first protrusion is set in correspondence with the second gap.

[0018] The first protrusion structure is adapted to be compressed by external force onto the outer wall of the touch sensor, causing the touch sensor to deform in the second gap.

[0019] Optionally, the cross-sectional shape of the second gap is trapezoidal, and the cross-sectional width of the second gap increases uniformly in the radial inward direction along the touch sensor or support.

[0020] The cross-sectional shape of the second protrusion is trapezoidal, and the cross-sectional width of the second protrusion decreases uniformly in the radial inward direction along the touch sensor or support.

[0021] Optionally, the cross-sectional shape of the first gap is trapezoidal, and the cross-sectional width of the first gap increases uniformly in the radial inward direction of the shell.

[0022] The cross-sectional shape of the first protrusion is trapezoidal, and the width of the cross-section of the first protrusion decreases uniformly inward along the radial direction of the shell.

[0023] Optionally, when the touch sensor and the support are assembled into the housing, the first protrusion structure is adapted to compress the outer wall of the touch sensor, so that the touch sensor portion at the compression position is depressed in the radial direction of the touch sensor, and the touch sensor portion at the position corresponding to the first gap is compressed to fill the first gap.

[0024] Optionally, the outer wall of the touch sensor is provided with a third protrusion structure that matches the shape of the first gap at the position corresponding to the first gap; the third protrusion structure is a strip structure; the length extension direction of the third protrusion structure is consistent with the axial direction of the touch sensor; the opposite sides of the side of the third protrusion structure that is used to contact the housing are rounded corner structures.

[0025] When the touch sensor and the support are assembled into the housing, the first protrusion structure is adapted to press the outer wall of the touch sensor, so that the touch sensor part at the pressing position is sunken in the radial direction of the touch sensor, and the third protrusion structure fills the first gap.

[0026] Optionally, the opposite sides of the side of the first protrusion structure that is in contact with the touch sensor are rounded.

[0027] The two opposite sides of the side of the second protrusion structure that is used to contact the support or touch sensor are rounded.

[0028] Optionally, the side of the first protrusion structure that comes into contact with the touch sensor is an arc surface;

[0029] The side of the second protrusion that comes into contact with the support or touch sensor is curved.

[0030] Optionally, the outer wall of the support member is provided with a second protrusion structure, which may be integral with or separate from the support member.

[0031] The inner wall of the touch sensor is provided with a second protrusion structure, which can be integrated with or separate from the touch sensor.

[0032] Optionally, the force-applying structure is an elastic element; the elastic element is disposed between the housing and the touch sensor, and the elastic element is squeezed by the housing and the touch sensor, producing deformation along the radial direction of the housing and / or the support;

[0033] The clearance space is the gap provided on the support member.

[0034] Optional, the support components include:

[0035] Multiple fourth protrusion structures are disposed on the outer wall of the support member; the fourth protrusion structure is a strip-shaped structure, the length extension direction of the fourth protrusion structure is consistent with the axial direction of the support member, and multiple fourth protrusion structures are arranged at intervals.

[0036] The space formed between adjacent fourth protrusions constitutes the gap.

[0037] Optionally, the fourth protrusion structure occupies no more than 50% of its area on the annulus.

[0038] Optionally, the gap is formed by hollowing out the surface of the support member.

[0039] Optionally, on the circumference where the gap is located, the ratio of the area occupied by the gap to the area occupied by the fixing part of the support member is greater than 2:1.

[0040] Optionally, at least a portion of the third gap in all the gaps may also be provided with an auxiliary structure that generates elastic deformation when subjected to external force, and the touch sensor at least partially covers the auxiliary structure.

[0041] Optionally, the auxiliary structure includes: an elastic arm disposed at the third gap position; the elastic arm undergoes elastic deformation when compressed by an external force;

[0042] One end of the elastic arm is connected to one side of the third gap, and the other end of the elastic arm extends toward the opposite side of the third gap.

[0043] Optionally, two elastic arms are provided in one of the third gaps;

[0044] One end of one of the elastic arms is connected to one side of the third gap, and one end of the other elastic arm is connected to the opposite side of the third gap;

[0045] The other ends of the two elastic arms are spaced apart by a preset distance.

[0046] Optionally, the sum of the areas of the auxiliary structure and the fixed portion of the support member shall not exceed 50% of the area of ​​its annulus.

[0047] Optionally, at least a portion of the fourth gaps in all the gaps are divided into multiple gap groups, each gap group comprising a plurality of fourth gap arrays arranged in a manner.

[0048] In this embodiment, the stylus includes a support, a touch sensor, and a housing. A force-applying structure is provided between the housing and the touch sensor to apply radial pressure to the touch sensor. A clearance space is also provided between the support and the housing, and the touch sensor at least partially covers this clearance space. This force-applying structure effectively transmits and maintains radial pressure from the outside in, ensuring a tight and stable fit between the touch sensor and the housing. This eliminates signal attenuation and instability caused by assembly gaps, thus providing a foundation for high-precision touch detection. Simultaneously, the clearance space provides a dedicated area for accommodating and buffering the deformation of the touch sensor towards the support when subjected to force. This allows the sensor to undergo more complete and sensitive deformation under external force, making it easier to detect subtle changes in capacitance distance caused by the compression of conductive objects. Through the synergistic cooperation of the force-applying structure and the clearance space, this application not only optimizes the force transmission path and contact reliability but also ensures the spatial freedom of sensor deformation, effectively improving the touch detection sensitivity, accuracy, and overall reliability of the stylus. Attached Figure Description

[0049] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0050] Figure 1 is a schematic diagram of the exploded structure of the first type of stylus;

[0051] Figure 2 is a cross-sectional structural diagram of the first embodiment of the stylus in Figure 1;

[0052] Figure 3 is an enlarged cross-sectional view of a stylus shown in Figure 2;

[0053] Figure 4 is a cross-sectional structural diagram of the second embodiment of the stylus in Figure 1;

[0054] Figure 5 is an enlarged schematic diagram of the cross-section of the stylus in Figure 4;

[0055] Figure 6 is an enlarged cross-sectional view of another stylus in Figure 2;

[0056] Figure 7 is a schematic diagram of the exploded structure of the second type of stylus;

[0057] Figure 8 is a cross-sectional structural diagram of the first embodiment of the stylus in Figure 7;

[0058] Figure 9 is an enlarged schematic diagram of the cross-section of the stylus in Figure 8;

[0059] Figure 10 is a schematic diagram of the external structure of the support component in Figure 8;

[0060] Figure 11 is a schematic diagram of the appearance of the support member of the second embodiment of the stylus in Figure 7;

[0061] Figure 12 is a schematic diagram of the appearance of the support member of the third embodiment of the stylus in Figure 7;

[0062] Figure 13 is a schematic cross-sectional view of the third embodiment of the stylus in Figure 7.

[0063] Reference numerals: 10-Support member; 11-Auxiliary structure; 12-Fourth protrusion structure; 111-Elastic arm; 20-Touch sensor; 30-Housing; 41-First protrusion structure; 42-Second protrusion structure; 43-Third protrusion structure; 50-Elastic member; A-Gap; A1-First gap; A2-Second gap; A3-Third gap; A4-Fourth gap. Detailed Implementation

[0064] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0065] 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.

[0066] This application provides a stylus, including:

[0067] The support member 10, the touch sensor 20, and the housing 30 are provided. The touch sensor 20 is disposed between the support member 10 and the housing 30 and is arranged around the support member 10.

[0068] A force-applying structure is disposed between the housing 30 and the touch sensor 20 for applying pressure to the touch sensor 20 in the radial direction;

[0069] A clearance space is provided between the support member 10 and the housing 30; the touch sensor 20 at least partially covers the clearance space;

[0070] When the touch sensor 20 is deformed by external force, the clearance space can provide space for the deformed touch sensor 20.

[0071] The stylus provided in this application includes a support member 10, a touch sensor 20, and a housing 30. A force-applying structure is provided between the housing 30 and the touch sensor 20 to apply radial pressure to the touch sensor. A clearance space is also provided between the support member 10 and the housing 30, and the touch sensor 20 at least partially covers the clearance space. Through the aforementioned force-applying structure, radial pressure from the outside to the inside can be effectively transmitted and maintained, ensuring a tight and stable fit between the touch sensor 20 and the housing 30. This eliminates signal attenuation and instability caused by assembly gaps, thus providing a foundation for high-precision touch detection. Simultaneously, the clearance space provides a dedicated area for accommodating and buffering the deformation of the touch sensor 20 towards the support member when subjected to force, allowing the touch sensor 20 to undergo more complete and sensitive deformation under external force, thereby making it easier to detect subtle changes in capacitance distance caused by the compression of conductive objects. This application, through the coordinated operation of the force-applying structure and the clearance space, not only optimizes the force transmission path and contact reliability, but also ensures the spatial freedom of the touch sensor 20 deformation, thus effectively improving the touch detection sensitivity, accuracy and overall reliability of the stylus.

[0072] Referring to Figure 1, an exploded view of a stylus provided in this application embodiment includes: a support member 10, a touch sensor 20, and a housing 30; the touch sensor 20 is disposed between the support member 10 and the housing 30, and is disposed around the support member 10; a first protrusion structure 41 is provided on the inner wall of the housing 30; a second protrusion structure 42 is provided on the inner wall of the touch sensor 20, or a second protrusion structure 42 is provided on the outer wall of the support member 10; the first protrusion structure 41 and the second protrusion structure 42 are staggered, the first protrusion structure 41 is attached to the touch sensor 20, and is adapted to apply a radially inward compressive force y to the touch sensor 20 from the housing 30 or the support member 10.

[0073] For example, the support member 10, touch sensor 20, and housing 30 can be cylindrical structures. The touch sensor 20 is sleeved on the outer wall of the support member 10, and the housing 30 is sleeved on the outer wall of the touch sensor 20. The cylindrical structure is a hollow cylinder with open ends. Cylindrical structures of different sizes can be nested to form a whole. In this embodiment, for example, referring to Figure 2, which is a cross-sectional structural diagram of the first embodiment of the stylus in Figure 1, the inner diameter of the support member 10 is smaller than the inner diameter of the touch sensor 20, and the inner diameter of the touch sensor 20 is smaller than the inner diameter of the housing 30. This allows the touch sensor 20 to be sleeved on the outer wall of the support member 10, and the housing 30 to be sleeved on the outer wall of the touch sensor 20. The final nested structure constitutes the main structure of the stylus.

[0074] It should be noted that the touch sensors can be evenly distributed around the stylus body, or they can be unevenly distributed. Furthermore, the touch sensors can be distributed as a whole around the stylus body, or they can be distributed in multiple parts around the stylus body separately. The material of the housing includes, but is not limited to, plastic. This application does not limit this aspect.

[0075] A capacitor can be formed on the surface of a touch sensor. When a conductive object (including but not limited to a finger) approaches or moves away from the touch sensor, it causes a change in the capacitance value of the capacitor. This change in capacitance value alters the charge distribution in the touch sensor's circuitry. Through appropriate circuit design, the touch sensor can detect these minute capacitance changes and convert them into processable touch commands, thus enabling the detection of external touch input.

[0076] Touch detection based on touch sensors can endow styluses with richer functions. For example, when the stylus's touch sensor detects a continuous touch signal, it can be considered that the stylus is currently in use, and the stylus can work normally. When the stylus's touch sensor does not detect a continuous touch signal, it can be considered that the stylus is not in use, and the stylus can enter a low-power idle mode to save power.

[0077] In this embodiment, referring further to Figure 3, which is an enlarged cross-sectional view of the stylus in Figure 2, the support member 10 is located at the innermost layer of the stylus's cross-sectional structure. The support member 10 provides support from the inside out, and the outer wall of the touch sensor 20 is fitted with a housing 30. Specifically, the first protrusion structure 41 forms a first gap A1 between the inner wall of the housing 30 and the outer wall of the touch sensor 20, and the second protrusion structure 42 forms a second gap A2 between the outer wall of the support member 10 and the inner wall of the touch sensor 20. Because the first protrusion structure 41 and the second protrusion structure 42 are staggered, the first gap A1 and the second gap A2 can be staggered. The second protrusion structure 42 can be stacked on the touch sensor 20 and can be made of rubber, hard or flexible plastic, etc.

[0078] Referring to Figure 2, when a conductive object (including but not limited to a finger) does not touch the surface of the housing 30, the initial distance between the touch sensor 20 and the internal support 10 is s. In this state, the distance s does not change, the touch sensor 20 remains stationary, and therefore there is no change in capacitance. When a conductive object touches the surface of the housing 30, since the first protrusion structure 41 is in contact with the touch sensor 20, the pressure generated by the touch is transmitted through the first protrusion structure 41 to apply a radially inward compressive force y to the touch sensor 20 from the housing 30 or the support 10. This compressive force causes the touch sensor 20 to move inward, thereby deforming in the second gap A2. At this time, the distance s between the touch sensor 20 and the support 10 changes. This change allows the touch sensor 20 to sense the corresponding change in capacitance and convert it into an electrical signal to achieve accurate detection of touch.

[0079] For example, in the schemes shown in Figures 1, 2, 3, and 4, the end of the first protrusion structure 41 on the inner wall of the housing 30 is tightly fitted with the outer wall of the touch sensor 20. Referring to Figures 1, 2, and 3, the end of the second protrusion structure 42 on the inner wall of the touch sensor 20 is tightly fitted with the outer wall of the support member 10. Or referring to Figure 4, which is a cross-sectional structural schematic diagram of the second embodiment of the stylus in Figure 1, the end of the second protrusion structure 42 on the outer wall of the support member 10 is tightly fitted with the inner wall of the touch sensor 20.

[0080] It should be noted that, in this embodiment, an elastic element may not be required in the stylus, thus eliminating the need to absorb the assembly gaps between the various components of the stylus through an elastic element. In this embodiment, due to the design of the first protrusion structure 41 and the second protrusion structure 42, the end of the protrusion structure on one component can be tightly fitted with the surface of another adjacent component. The protrusion structure plays a supporting role in the space between adjacent components, thereby achieving the effect of absorbing the assembly gaps between the various components of the stylus through the protrusion structure.

[0081] The assembly gap is addressed because if there is an assembly gap between the outer wall of the touch sensor 20 and the inner wall of the housing 30, the distance change detected by the touch sensor 20 will be inaccurate, leading to a decrease in detection accuracy. Therefore, only when there is no assembly gap between the outer wall of the touch sensor 20 and the inner wall of the housing 30 can the touch sensor 20 more accurately sense external operations, thereby ensuring high detection accuracy and sensitivity.

[0082] In summary, in the embodiments of this application, the stylus includes a support, a touch sensor, and a housing. This application provides a first protrusion structure on the inner wall of the housing; a second protrusion structure is provided on the inner wall of the touch sensor, or on the outer wall of the support. The first and second protrusion structures are staggered. The first protrusion structure fits against the touch sensor and is adapted to apply a radially inward squeezing force from the housing or support to the touch sensor. Gaps are formed between adjacent first and second protrusion structures, allowing external force to trigger the touch sensor. This makes it easier for the stylus to detect changes in distance between the conductive object and the touch sensor under external force, improving the detection accuracy and sensitivity of the touch sensor. Furthermore, by providing the protrusion structure, this application aims to absorb the assembly gap between the touch sensor and the housing, ensuring a tight fit between the outer wall of the touch sensor and the inner wall of the housing without slippage, further improving detection accuracy and sensitivity.

[0083] Optionally, referring to Figure 1, the first protrusion structure 41 is a strip structure; the length extension direction of the first protrusion structure 41 is consistent with the axial direction z of the housing 30; further referring to Figure 2, the space formed between adjacent first protrusion structures 41 constitutes the first gap A1.

[0084] In this embodiment, the inner wall of the housing 30 is provided with a plurality of mutually spaced first protrusions 41. As shown in Figures 1 and 2, the inner wall of the housing 30 is provided with six mutually spaced first protrusions 41, but the number of first protrusions 41 is not limited in this embodiment. The plurality of first protrusions 41 are evenly distributed radially around the inner wall of the housing 30. Referring to Figure 1, the first protrusions 41 are strip-shaped structures, and the length extension direction of the first protrusions 41 is consistent with the axial direction z of the cylindrical structure of the housing 30. This makes the space formed between adjacent first protrusions 41 constitute a first gap A1.

[0085] In addition, when a conductive object presses the housing 30, such as pressing the position corresponding to the first protrusion structure 41, the housing 30 will undergo a pressing deformation at the first gap A1. The first gap A1 can also absorb the pressing deformation at this position, preventing the touch sensor 20 from detecting a touch signal at the position corresponding to the first protrusion structure 41, thereby avoiding accidental touches at the position of the first gap A1.

[0086] Optionally, referring to Figure 1, the second protrusion structure 42 is a strip structure; the length extension direction of the second protrusion structure 42 is consistent with the axial direction z of the touch sensor 20 or the support member 10; further referring to Figure 2, the space formed between adjacent second protrusion structures 42 constitutes a second gap A2; the second protrusion structure 42 is correspondingly provided with the first gap A1; the first protrusion structure 41 is correspondingly provided with the second gap A2; the first protrusion structure 41 is adapted to be subjected to external force to squeeze the outer wall of the touch sensor 20, so that the touch sensor 20 deforms in the second gap A2.

[0087] In the first embodiment of this application, a plurality of mutually spaced second protrusions 42 can be provided on the inner wall of the touch sensor 20. As shown in Figures 2 and 3, six mutually spaced second protrusions 42 are provided on the inner wall of the touch sensor 20. However, the number of second protrusions 42 is not limited in this embodiment. The plurality of second protrusions 42 are evenly distributed radially around the inner wall of the touch sensor 20. The second protrusions 42 can also be strip-shaped structures. The length extension direction of the second protrusions 42 is consistent with the axial direction z of the cylindrical touch sensor 20. This makes the space formed between adjacent second protrusions 42 form a second gap A2 with the outer wall of the support member 10. When the conductive object does not touch the surface of the housing 30, the initial distance between the touch sensor 20 and the internal support member 10 is s. In this state, the distance s does not change, the touch sensor 20 remains stationary, and therefore there is no change in capacitance. When a conductive object touches the surface of the housing 30, the pressure generated by the touch is transmitted through the first protrusion 41 to the touch sensor 20, applying a radially inward compressive force (y) to the touch sensor 20. This pressure causes the touch sensor 20 to move inward, deforming within the second gap A2. At this point, the distance (s) between the touch sensor 20 and the support 10 changes. This change allows the touch sensor 20 to detect the corresponding change in capacitance and convert it into an electrical signal for accurate touch detection.

[0088] In the second embodiment of this application, referring to FIG4, a plurality of mutually spaced second protrusions 42 can be provided on the outer wall of the support member 10. As shown in FIG4, six mutually spaced second protrusions 42 are provided on the outer wall of the support member 10, but the number of second protrusions 42 is not limited in this embodiment. The plurality of second protrusions 42 are evenly distributed radially around the support member 10 on the inner wall of the support member 10. The second protrusions 42 can also be strip-shaped structures. The length extension direction of the second protrusions 42 is consistent with the axial direction z of the cylindrical support member 10, so that the space formed between adjacent second protrusions 42 forms a second gap A2 with the inner wall of the touch sensor 20. In the cooperation between the second protruding structure 42 and the first protruding structure 41 provided on the inner wall of the housing 30, since the projection of the second protruding structure 42 on the housing 30 is in the first gap A1 (the second protruding structure 42 is correspondingly provided with the first gap A1); and the projection of the first protruding structure 41 on the support 10 is in the second gap A2 (the first protruding structure 41 is correspondingly provided with the second gap A2), the pressure of the conductive object on the housing 30 will cause the pressure to be transmitted through the end of the first protruding structure 41 to the position of the touch sensor 20 corresponding to the second gap A2, causing the structure of the touch sensor 20 at the position of the second gap A2 to deform. This deformation can trigger the touch sensor 20 to detect the touch signal.

[0089] In the first and second embodiments of this application, the positions of the first gap A1 and the second gap A2 can be staggered. Preferably, the projection of the second protrusion 42 on the housing 30 completely coincides with the first gap A1, and the projection of the first protrusion 41 on the touch sensor 20 completely coincides with the second gap A2. This allows the first protrusion 41 to overlap with the second gap A2. When a conductive object presses the housing 30, the pressure transmitted through the end of the first protrusion 41 can directly change the depth of the second gap A2, causing a change in the distance between the touch sensor 20 and the support 10 at the point of pressure. This change allows the touch sensor 20 to more easily sense the change in capacitance and convert it into an electrical signal for accurate touch detection.

[0090] Optionally, referring to Figures 2 to 5, when the touch sensor 20 and the support member 10 are assembled into the housing 30, the first protrusion structure 41 is adapted to press the outer wall of the touch sensor 20, so that the touch sensor part at the pressing position is depressed in the radial inward direction y of the touch sensor, and the touch sensor part at the corresponding position of the first gap A1 is compressed to fill the first gap A1.

[0091] For the assembly of the stylus, the housing 30 of the stylus and the touch sensor 20 must fit tightly together after assembly, without any slippage between them. This means eliminating the assembly gap between the outer wall of the touch sensor 20 and the inner wall of the housing 30, and ensuring that the touch sensor 20 does not shift relative to the housing 30. This is crucial to guarantee the subsequent detection accuracy and sensitivity of the touch sensor 20. Addressing the assembly gap is necessary because if there is a gap between the outer wall of the touch sensor 20 and the inner wall of the housing 30, the distance detected by the touch sensor 20 will be inaccurate, leading to a decrease in detection accuracy. Therefore, only when there is no assembly gap between the outer wall of the touch sensor 20 and the inner wall of the housing 30 can the touch sensor 20 more accurately sense external operations, thus ensuring high detection accuracy and sensitivity.

[0092] In this embodiment, when the touch sensor 20 and the support member 10 are assembled into the housing 30, the housing 30 generates a radially inward compressive force y through the first protrusion structure 41. This compressive force is suitable for compressing the outer wall of the touch sensor 20, causing the touch sensor portion at the compressive position to sink in the radially inward direction y of the touch sensor 20. This sinking effect allows the housing 30 and the touch sensor 20 to fit tightly together and eliminates the assembly gap at the contact position. In addition, the sinking of the touch sensor portion caused by the compression of the first protrusion structure 41 further compresses the touch sensor portion at the corresponding position of the first gap A1, thereby filling the first gap A1. After filling, the touch sensor portion is limited by the two side walls of the first gap A1, achieving the effect of mutual positioning and installation between the housing 30 and the touch sensor 20. This ensures that the touch sensor 20 will not shift relative to the housing 30, guaranteeing the high detection accuracy and sensitivity of the touch sensor 20.

[0093] For example, referring to FIG3, in the first embodiment of this application, the second protrusion structure 42 is disposed on the inner wall of the touch sensor 20. Before the housing 30 and the touch sensor 20 are assembled, the outer wall surface of the part of the touch sensor 20 corresponding to the first protrusion structure 41 is at position S2. After the housing 30 and the touch sensor 20 are assembled, the outer wall surface of the corresponding part of the touch sensor 20 is squeezed by the first protrusion structure 41, and sinks in the radially inward direction y, and moves to position S2'. This squeezing and sinking of the part of the touch sensor 20 can eliminate the assembly gap at the contact position. In addition, affected by the squeezing and sinking of the part of the touch sensor 20 corresponding to the first protrusion structure 41, the outer wall surface S1 of the part of the touch sensor 20 corresponding to the first gap A1 will rise in the radially outward direction x, thereby filling the first gap A1 of the part of the touch sensor 20, realizing the assembly positioning of the touch sensor and the housing.

[0094] For example, referring to FIG5, in the second embodiment of this application, the second protrusion structure 42 is disposed on the outer wall of the support member 10. Before the housing 30 and the touch sensor 20 are assembled, the outer wall surface of the part of the touch sensor 20 corresponding to the first protrusion structure 41 is at position S3. After the housing 30 and the touch sensor 20 are assembled, the outer wall surface of the corresponding part of the touch sensor 20 is squeezed by the first protrusion structure 41, and sinks in the radially inward direction y, and moves to position S3'. This squeezing and sinking of the part of the touch sensor 20 can eliminate the assembly gap at the contact position. In addition, affected by the squeezing and sinking of the part of the touch sensor 20 corresponding to the first protrusion structure 41, the outer wall surface S1 of the part of the touch sensor 20 corresponding to the first gap A1 will rise in the radially outward direction x, thereby filling the first gap A1 of the part of the touch sensor 20, realizing the assembly positioning of the touch sensor and the housing.

[0095] It should be noted that, for the first and second embodiments of this application, after the part of the touch sensor 20 corresponding to the first gap A1 is filled in the first gap A1, the outer wall surface S1 of the part of the touch sensor 20 corresponding to the first gap A1 can be tightly fitted with the bottom wall of the first gap A1, and the outer wall surface S1 of the part of the touch sensor 20 corresponding to the first gap A1 can also be separated from the bottom wall of the first gap A1 by a very small distance. This application does not specifically limit this aspect.

[0096] Optionally, referring to Figure 6, which is an enlarged cross-sectional view of another stylus in Figure 2, the outer wall of the touch sensor 20 is provided with a third protrusion structure 43 that matches the shape of the first gap A1 at the position corresponding to the first gap A1; the third protrusion structure 43 is a strip structure; the length extension direction of the third protrusion structure 43 is consistent with the axial direction of the touch sensor 20; the opposite sides of the side of the third protrusion structure 43 that contacts the housing 30 are rounded; when the touch sensor 20 and the support member 10 are assembled on the housing 30, the first protrusion structure 41 is adapted to compress the outer wall of the touch sensor 20, so that the touch sensor part at the compression position is sunken in the radial inward direction y of the touch sensor, and the third protrusion structure 43 fills the first gap. The third protrusion is stacked with the touch sensor 20, and its material can be rubber, hard or flexible plastic, etc.

[0097] In the embodiment shown in Figure 6 of this application, a third protrusion structure 43, matching the shape of the first gap A1, is provided on the outer wall of the touch sensor 20 at a position corresponding to the first gap A1. When the touch sensor 20 and the support member 10 are assembled into the housing 30, the housing 30 generates a radially inward compressive force y through the first protrusion structure 41, which causes the touch sensor portion at the compressive position to sink, thereby eliminating the assembly gap at the contact position. In addition, the third protrusion structure 43 on the outer wall of the touch sensor 20 fills the first gap A1. After filling, the third protrusion structure 43 is limited by the two side walls of the first gap A1, achieving the effect of mutual positioning and installation between the housing 30 and the touch sensor 20. This ensures that the touch sensor 20 will not shift relative to the housing 30, guaranteeing the high detection accuracy and sensitivity of the touch sensor 20.

[0098] Among them, the opposite sides of the side of the third protrusion structure 43 that is in contact with the housing 30 are rounded, which can reduce the mutual wear between the third protrusion structure 43 and the inner wall of the housing 30.

[0099] Optionally, referring to Figures 2 to 5, the cross-sectional shape of the first gap A1 is trapezoidal, and the cross-sectional width of the first gap A1 increases uniformly in the radial inward direction y of the housing 30. The cross-sectional shape of the first protrusion structure 41 is trapezoidal, and the cross-sectional width of the first protrusion structure 41 decreases uniformly in the radial inward direction y of the housing 30.

[0100] In the first and second embodiments of this application, the cross-sectional shape of the first protrusion structure 41 can be set as trapezoidal, and the cross-sectional width of the first protrusion structure 41 decreases uniformly in the radial inward direction y of the housing 30. Thus, the cross-sectional shape of the first gap A1 formed between adjacent first protrusion structures 41 can also be trapezoidal, and the cross-sectional width of the first gap A1 increases uniformly in the radial inward direction y of the housing 30. The advantage of the trapezoidal cross-section of the first protrusion structure 41 is that when the first protrusion structure 41 presses against the corresponding part of the touch sensor 20, the trapezoidal inclined side of the first protrusion structure 41 can reduce damage to the corresponding part of the touch sensor 20. Furthermore, the trapezoidal inclined side of the first protrusion structure 41 can also squeeze and guide the part of the touch sensor 20 corresponding to the first gap A1, making it easier for the part of the touch sensor 20 corresponding to the first gap A1 to fill the first gap A1.

[0101] Optionally, referring to Figures 2 and 3, the cross-sectional shape of the second gap A2 is trapezoidal, and the cross-sectional width of the second gap A2 increases uniformly in the radial inward direction along the touch sensor 20 or the support member 10; the cross-sectional shape of the second protrusion structure 42 is trapezoidal, and the cross-sectional width of the second protrusion structure 42 decreases uniformly in the radial inward direction along the touch sensor 20 or the support member 10.

[0102] In the first embodiment of this application, the cross-sectional shape of the second protrusion structure 42 can be set as trapezoidal, and the cross-sectional width of the second protrusion structure 42 decreases uniformly in the radial inward direction y. Thus, the cross-sectional shape of the second gap A2 formed between adjacent second protrusion structures 42 can also be trapezoidal, and the cross-sectional width of the second gap A2 increases uniformly in the radial inward direction y. The advantage of the trapezoidal cross-section of the second protrusion structure 42 is that when the first protrusion structure 41 presses the corresponding part of the touch sensor 20, the pressed part of the touch sensor 20 can deform in the second gap A2. At this time, the inclined side of the trapezoidal structure of the second gap A2 can guide the deformed part of the touch sensor 20, making it easier for the touch sensor 20 to deform, thus improving the detection sensitivity and accuracy of the touch sensor. In addition, the trapezoidal structure of the second protrusion structure 42 can also reduce damage to the inner wall of the touch sensor 20.

[0103] Optionally, referring to FIG5, the opposite sides of the side of the first protrusion structure 41 that is in contact with the touch sensor 20 are rounded, and the opposite sides of the side of the second protrusion structure 42 that is in contact with the support member 10 or the touch sensor 20 are rounded.

[0104] In this embodiment, the ends of the first protrusion structure 41 are rounded, which can reduce the wear of the first protrusion structure 41 on the outer wall of the touch sensor 20. In addition, the ends of the second protrusion structure 42 are rounded, which can reduce the wear of the second protrusion structure 42 on the outer wall of the support member 10 or the inner wall of the touch sensor 20, thereby improving the product quality of the stylus.

[0105] Optionally, the side of the first protruding structure that contacts the touch sensor is an arc surface; the side of the second protruding structure that contacts the support member or the touch sensor is also an arc surface. Setting the side of the first protruding structure that contacts the touch sensor as an arc surface and the side of the second protruding structure that contacts the support member or the touch sensor as an arc surface can improve the fit between the protruding structure and the arc surface of the contacting component, thereby improving the tightness of the fit and ensuring assembly accuracy.

[0106] Optionally, the outer wall of the support member is provided with a second protrusion structure, which is integral with or separate from the support member; the inner wall of the touch sensor is provided with a second protrusion structure, which is integral with or separate from the touch sensor.

[0107] In this embodiment, the first protruding structure and the housing can be an integral structure, and the second protruding structure and the touch sensor or support can be an integral structure. This allows the housing and the touch sensor or support to be integrally manufactured, reducing production costs and improving production efficiency. Alternatively, the first protruding structure and the housing can also be separate structures, and the second protruding structure and the touch sensor or support can also be separate structures, further increasing the flexibility in the design of the protruding structures. This embodiment does not limit the scope of the application.

[0108] Optionally, both the first and second protruding structures are non-elastic bodies, and each of the first and second protruding structures includes multiple protrusion structures arranged in an array. The material of the support member includes, but is not limited to, metallic materials.

[0109] In the embodiments of this application, the first protrusion structure and the second protrusion structure can be non-elastic materials. In one implementation, the first protrusion structure and the second protrusion structure can be rigid rubber materials. The first protrusion structure and the second protrusion structure can be prepared on the outer wall of the support by printing or other methods. The first protrusion structure and the second protrusion structure can be integral strip structures or can be composed of multiple protrusion structures arranged in a strip shape. The embodiments of this application do not limit this.

[0110] In summary, in the embodiments of this application, the stylus includes a support, a touch sensor, and a housing. This application provides a first protrusion structure on the inner wall of the housing; a second protrusion structure is provided on the inner wall of the touch sensor, or on the outer wall of the support. The first and second protrusion structures are staggered. The first protrusion structure fits against the touch sensor and is adapted to apply a radially inward squeezing force from the housing or support to the touch sensor. Gaps are formed between adjacent first and second protrusion structures. These gaps allow external force to trigger the touch sensor, making it easier for the stylus to detect changes in distance between the conductive object and the touch sensor under external force, thus improving the detection accuracy and sensitivity of the touch sensor. Furthermore, by providing the protrusion structure, this application aims to absorb the assembly gap between the touch sensor and the housing, ensuring a tight fit between the outer wall of the touch sensor and the inner wall of the housing without slippage, further improving detection accuracy and sensitivity.

[0111] Referring to Figure 7, this application provides an exploded view of another stylus, which includes a support member 10, a touch sensor 20, an elastic element 50, and a housing 30. The touch sensor 20 is disposed around the support member 10, and the elastic element 50 is disposed between the housing 30 and the touch sensor 20. The elastic element 50 is compressed by the housing 30 and the touch sensor 20, resulting in deformation along the radial direction of the housing 30 and / or the support member 10 (as shown in Figures 7 and 8, direction x is the radial outward direction along the housing 30 or the support member 10, and direction y is the radial inward direction along the housing 30 or the support member 10). Referring to Figure 8, the support member 10 has a gap A, and the touch sensor 20 at least partially covers the gap A. When the touch sensor 20 is deformed by external force, the gap provides clearance space for the deformed touch sensor 20. Preferably, the touch sensor 20 completely covers the gap A.

[0112] For example, the support member 10, the touch sensor 20, the elastic member 50, and the housing 30 can be cylindrical structures; the touch sensor 20 is sleeved on the outer wall of the support member 10, the elastic member 50 is sleeved on the outer wall of the touch sensor 20, and the housing 30 is sleeved on the outer wall of the elastic member 50. The cylindrical structure is a hollow cylinder structure with open ends. Cylindrical structures of different sizes can be nested together to form a whole.

[0113] In this embodiment of the application, exemplarily referring to FIG8, the inner diameter of the support member 10 is smaller than the inner diameter of the touch sensor 20, the inner diameter of the touch sensor 20 is smaller than the inner diameter of the elastic member 50, and the inner diameter of the elastic member 50 is smaller than the inner diameter of the housing 30, so that the touch sensor 20 can be sleeved on the outer wall of the support member 10, the elastic member 50 can be sleeved on the outer wall of the touch sensor 20, and the housing 30 can be sleeved on the outer wall of the elastic member 50. The final nested structure constitutes the main structure of the stylus.

[0114] It should be noted that the touch sensors can be evenly distributed around the stylus body, or they can be unevenly distributed. Furthermore, the touch sensors can be distributed as a whole around the stylus body, or they can be distributed in multiple parts around the stylus body separately. The material of the housing includes, but is not limited to, plastic. This application does not limit this aspect.

[0115] A capacitor can be formed on the surface of a touch sensor. When a conductive object (including but not limited to a finger) approaches or moves away from the touch sensor, it causes a change in the capacitance value of the capacitor. This change in capacitance value alters the charge distribution in the touch sensor's circuitry. Through appropriate circuit design, the touch sensor can detect these minute capacitance changes and convert them into processable touch commands, thus enabling the detection of external touch input.

[0116] Touch detection based on touch sensors can endow styluses with richer functions. For example, when the stylus's touch sensor detects a continuous touch signal, it can be considered that the stylus is currently in use, and the stylus can work normally. When the stylus's touch sensor does not detect a continuous touch signal, it can be considered that the stylus is not in use, and the stylus can enter a low-power idle mode to save power.

[0117] In this embodiment, referring to FIG8, the support member 10 is located at the innermost layer of the cross-sectional structure of the stylus. The support member 10 provides support force from the inside out. An elastic member 50 is sleeved on the outer wall of the touch sensor 20, so that the elastic member 50 is located between the touch sensor 20 and the housing 30. The two sides of the elastic member 50 are tightly fitted to the outer wall of the touch sensor 20 and the inner wall of the housing 30, respectively, so that the elastic member 50 can absorb the assembly gap between the touch sensor 20 and the housing 30. In addition, the elastic member can also provide pressure from the outside in, so that the touch sensor 20 and the support member 10 are in close contact. If there is an assembly gap between the outer wall of the touch sensor 20 and the inner wall of the housing 30, the distance change detected by the touch sensor 20 will be inaccurate due to the assembly gap, resulting in a decrease in detection accuracy. Therefore, when there is no assembly gap between the outer wall of the touch sensor 20 and the inner wall of the housing 30, the touch sensor 20 can more accurately sense external operations, thereby ensuring high detection accuracy and sensitivity. In addition, the elastic member can be made of materials such as foam, silicone, and adhesive.

[0118] When a conductive object does not touch the housing 30, the initial distance between the touch sensor 20 and the internal support 10 is s. In this state, the distance s does not change, the touch sensor 20 remains stationary, and therefore there is no change in capacitance. When the conductive object touches the housing 30 at the position corresponding to gap A, the external pressure generated by the conductive object is transmitted to the inner layer by the elastic element 50, causing radial inward deformation of the part of the touch sensor 20 corresponding to gap A. Gap A provides space to avoid this deformation, allowing the deformation to occur smoothly. At this time, the distance between the touch sensor 20 and the support 10 changes, and the new distance becomes s1. This new distance s1 is significantly different from the initial distance s. This change makes it easier for the touch sensor 20 to sense the change in capacitance and convert it into an electrical signal to achieve accurate touch detection.

[0119] In summary, in this embodiment, the stylus comprises a support member, a touch sensor, an elastic member, and a housing. The touch sensor is arranged around the support member, and the elastic member is disposed between the housing and the touch sensor. When the elastic member is compressed by the housing and the touch sensor, it can deform along the radial direction of the housing and / or the support member. Furthermore, the support member has a gap, which the touch sensor at least partially covers. When the touch sensor is deformed by external force, the gap provides clearance for the deformed touch sensor. This application provides clearance for the deformed touch sensor through the gap in the support member, thereby enabling external force to trigger the touch sensor. This makes it easier for the stylus to detect changes in distance between the conductive object and the touch sensor under external force, improving the detection accuracy and sensitivity of the touch sensor. Additionally, the elastic member absorbs the assembly gap between the touch sensor and the housing, ensuring a tight fit between the outer wall of the touch sensor and the inner wall of the housing, further improving detection accuracy and sensitivity.

[0120] Optionally, referring to Figures 8 and 9, Figure 9 is an enlarged cross-sectional view of the stylus in Figure 8, the support member 10 includes: a plurality of fourth protrusion structures 12 disposed on the outer wall of the support member 10; further referring to Figure 10, Figure 10 is a schematic diagram of the external structure of the support member in Figure 8, the fourth protrusion structure 12 is a strip structure, the length extension direction of the fourth protrusion structure 12 is consistent with the axial direction z of the support member 10, and the plurality of fourth protrusion structures 12 are spaced apart; the space formed between adjacent fourth protrusion structures 12 constitutes a gap A.

[0121] In the first embodiment of this application, referring to Figures 8 and 9, a fourth protrusion structure 12 can be provided on the outer wall of the support member 10. A gap A can be formed between adjacent fourth protrusion structures 12. When the conductive object does not touch the housing 30, the initial distance between the touch sensor 20 and the internal support member 10 remains at s, and the touch sensor 20 remains stationary, so there is no capacitance change. When the conductive object touches the housing 30 at the position corresponding to gap A, the external pressure generated by the conductive object is transmitted to the inner touch sensor 20 by the elastic member 50, causing the touch sensor 20 to deform in the y direction. The gap A is used to provide clearance space for the deformed touch sensor 20. At this time, the distance between the touch sensor 20 and the support member 10 will change, and the new distance becomes s2. This new distance s2 is significantly different from the initial distance s. This change makes it easier for the touch sensor 20 to sense the corresponding capacitance change and convert it into an electrical signal to achieve accurate touch detection.

[0122] It should be noted that the third protrusion structure can be an integral part of the support member, or it can be a separate structure from the support member. The third protrusion structure can be a non-elastic material. In one implementation, the third protrusion structure can be a rigid adhesive material. The third protrusion structure can be fabricated on the outer wall of the support member by printing or other methods. The third protrusion structure can be a monolithic strip structure, or it can be composed of multiple protrusion structures arranged in a strip shape to form the third protrusion structure. This application does not limit the specific implementation of the third protrusion structure.

[0123] Furthermore, the surface of the third protrusion that contacts the inner wall of the touch sensor can be designed as an outer arc surface, allowing for a tight fit between the surface and the arc-shaped inner wall of the touch sensor. The opposite sides of the third protrusion can also have rounded corners to reduce damage to the inner wall of the touch sensor caused by its edges. The cross-sectional shape of the third protrusion can also be trapezoidal, with its width increasing uniformly inward along the radial direction of the support.

[0124] Optionally, the third protrusion may occupy no more than 50% of its area on the ring.

[0125] In this embodiment of the application, referring to Figures 8 and 9, the ring is composed of gap A and the fourth protrusion structure 12. In this embodiment of the application, the area ratio of the third protrusion structure on the ring can be set to no more than 50%. The purpose of doing so is that the support member 10 can support the touch sensor 20 to maintain good tension, so that the area ratio of gap A is as large as possible, thereby making the detection of touch sensor 20 more accurate and sensitive.

[0126] Optionally, referring to Figure 11, which is a schematic diagram of the appearance of the support member of the second embodiment of the stylus in Figure 7, the support member 10 has a gap A formed by hollowing out the surface.

[0127] In the second embodiment of the stylus provided in this application, gap A can be formed by hollowing out the surface of the support member 10, that is, gap A can be provided by hollowed-out through holes on the surface of the support member 10. With this design, the support member 10 provides support for the touch sensor 20 through its own fixing part, and provides clearance space for the deformable touch sensor 20 through the gap A formed by hollowing out its own surface. The fixing part is the part on the support member 10 excluding gap A, and the function of the fixing part is to provide support for the inner wall of the touch sensor.

[0128] Preferably, referring to Figure 11, the gap A can be a rectangular hole, and the long side of the gap A is aligned with the axial direction z of the support member 10.

[0129] When the conductive object is not touching the housing 30, the initial distance between the touch sensor 20 and the internal support member 10 remains at s. When the conductive object touches the housing 30 at the corresponding gap A, the external pressure generated by the conductive object is transmitted to the inner touch sensor 20 through the elastic member 50, causing the touch sensor 20 to deform in the y-direction. The gap A formed by the hollowed-out part in the support member 10 provides clearance for the deformed touch sensor 20. At this time, the distance between the touch sensor 20 and the support member 10 changes, and the new distance becomes s2. This new distance s2 is significantly different from the initial distance s. This change makes it easier for the touch sensor 20 to sense the change in capacitance and convert it into an electrical signal to achieve accurate touch detection.

[0130] Optionally, referring to Figure 11, on the circumference where the gap A is located, the ratio of the area occupied by the gap A to the area occupied by the fixing part of the support member 10 is greater than 2:1.

[0131] Wherein, the circumference where gap A is located is the circumferential surface formed by the outer surface of the support member 10. In this embodiment, the area occupied by gap A and the area occupied by the fixing part of the support member 10 can be set to be greater than 2:1. The purpose of doing so is to make the area ratio of gap A as large as possible while the support member 10 can support the touch sensor 20 to maintain good tension, so that the detection of the touch sensor 20 is more accurate and sensitive.

[0132] Specifically, while ensuring the basic support capacity of the support member to maintain good tension of the touch sensor 20, the area ratio of the fixed part of the support member needs to be as small as possible. Preferably, the area ratio of the fixed part of the support member is less than or equal to 10%.

[0133] It should be noted that the aforementioned gap A can be a rectangular hole, or a circular hole, a trapezoidal hole, or a hole of other shapes; this application does not impose any restrictions on this.

[0134] Optionally, referring to Figure 12, which is a schematic diagram of the appearance of the support member of the third embodiment of the stylus in Figure 7, the surface of the support member 10 is hollowed out to form gaps, and at least a portion of the third gap A3 in all gaps is provided with an auxiliary structure 11 that generates elastic deformation when squeezed by external force (in Figure 12, all gaps in the support member 10 are third gaps A3 with the auxiliary structure 11 provided), and the touch sensor 20 at least partially covers the auxiliary structure 11.

[0135] Specifically, in the third embodiment of the stylus, an auxiliary structure 11 can be provided in the third gap A3 of the support member 10. The auxiliary structure 11 can generate elastic deformation when squeezed by external force. The purpose of this is to add the auxiliary structure 11 in the third gap A3 to provide a certain support for the inner wall of the touch sensor 20. This can solve the problem of poor support effect of the support member 10 due to the third gap A3 being too large. Furthermore, through the elastic deformation of the auxiliary structure 11 itself, it provides the ability to avoid the deformation of the touch sensor 20, thereby achieving high-precision triggering of the touch sensor 20. Referring to Figure 13, which shows a cross-sectional schematic diagram of the third embodiment of the stylus in Figure 7, elastic deformation refers to the elastic deformation of the auxiliary structure 11 in the radially inward direction y of the housing 30 or the support member 10 under the action of external force. When the external force disappears, the elastic potential energy accumulated by the elastic deformation is released, causing the auxiliary structure 11 to deform and reset in the radially outward direction x of the housing 30 or the support member 10.

[0136] Preferably, referring to Figure 12, the third gap A3 can be a rectangular hole, and the long side of the third gap A3 is aligned with the axial direction z of the support member 10.

[0137] Optionally, referring to Figures 12 and 13, the auxiliary structure 11 includes: an elastic arm 111 disposed at the position of the third gap A3; the elastic arm 111 undergoes elastic deformation when compressed by an external force; one end of the elastic arm 111 is connected to one side of the third gap A, and the other end of the elastic arm 111 extends toward the opposite side of the third gap A.

[0138] For example, in Figures 12 and 13, the auxiliary structure 11 may specifically include a deformable elastic arm 111 structure. The elastic arm 111 is used to deform in the radially inward direction y toward the support member 10 under the action of an external force, and to return to its original shape in the radially outward direction x toward the support member 10 when the external force disappears.

[0139] In this embodiment, the elastic arm 111 can be integrated with the support member 10. Specifically, the elastic arm 111 is a strip-shaped structure with one end extending from one side of the third gap A3 of the support member 10 and the other end extending towards the opposite side of the third gap A3. Since the other end of the elastic arm 111 is not connected to other structures, the elastic arm 111 can deform under force within the space formed by the third gap A3. When a conductive object touches the housing 30 of the stylus, the external force is transmitted from the outside to the inside, passing through the elastic member 50 and the touch sensor 20 in sequence, and then to the elastic arm 111. This causes the elastic arm 111 to deform and move in the third gap A3 in the radially inward direction y towards the support member 10. This movement of the elastic arm 111 can provide clearance space for the deformation of the touch sensor 20. In addition, when the external force disappears, the elastic arm 111 can be repositioned in the radial outward direction of the support member 10. At this time, the elastic arm 111 can provide support force on the inner wall of the touch sensor 20, thereby improving the support effect of the support member 10 on the inner wall of the touch sensor 20.

[0140] Optionally, referring to Figure 12, a third gap A3 is provided with two elastic arms 111; one end of one elastic arm 111 is connected to one side of the third gap A3, and one end of the other elastic arm 111 is connected to the opposite side of the third gap A3; the other ends of the two elastic arms 111 are spaced apart by a preset distance.

[0141] In this embodiment, the third gap A3 is a rectangular through hole. The regular structure of the third gap A3 is easy to manufacture and facilitates the symmetrical arrangement of the two elastic arms 111 within it. In addition, the other ends of the two elastic arms 111 are spaced apart by a preset distance, which separates the ends of the two elastic arms 111 and prevents them from colliding with each other when subjected to force.

[0142] Preferably, referring to Figure 12, the two elastic arms 111 are respectively disposed on the two opposite short sides of the third gap A3.

[0143] In this embodiment, the two elastic arms 111 are respectively disposed on the two opposite short sides of the third gap A3, so that the length extension direction of the elastic arms 111 is consistent with the long side direction of the third gap A3. Compared with the scheme of placing the elastic arms on the long side of the third gap A3, so that the length extension direction of the elastic arms 111 is consistent with the short side direction of the third gap A3, the scheme of placing the elastic arms 111 on the short side can make the length of the elastic arms 111 longer, so that the elastic arms 111 are more likely to deform under the action of external force, thereby further improving the detection sensitivity of the touch sensor.

[0144] It should be noted that the elastic arm in this embodiment can also be set in other positions of the first through hole, such as the long side of the third gap. This embodiment does not limit this.

[0145] Optionally, referring to Figure 13, the sum of the areas of the auxiliary structure 11 and the fixing part of the support member 10 shall not exceed 50% of the area of ​​its annulus.

[0146] In this embodiment, the ring is composed of gap A, auxiliary structure 11 and fixing part of support member 10. In this embodiment, the sum of the areas of auxiliary structure 11 and fixing part of support member 10 can be set to account for no more than 50% of the area of ​​the ring. The purpose of this is to make the area of ​​gap A as large as possible while maintaining sufficient tension of the touch sensor, so that the detection of touch sensor 20 is more accurate and sensitive.

[0147] Optionally, referring to Figures 7 and 11, at least a portion of the fourth gaps A4 in all gaps A are divided into multiple gap groups, each gap group comprising an array of multiple fourth gaps A4.

[0148] Optionally, referring to Figures 7 and 11, the support member 10 has multiple sets of fourth gaps A4; each set of fourth gaps A4 includes an array of multiple fourth gaps A4 (two sets of fourth gaps A4 are provided on the support member 10 in Figure 7, and four sets of fourth gaps A4 are provided on the support member 10 in Figure 7. In Figures 7 and 11, each set of fourth gaps A4 includes four fourth gaps A4 arranged in a 2×2 pattern) arranged in an array; the array arrangement of multiple fourth gaps A4 in each set of fourth gaps A4 can make the fourth gaps A4 evenly distributed on the surface of the support member 10, thereby achieving high-precision triggering of the touch sensor 20.

[0149] In this embodiment of the application, the third gap A3 refers to the gap where the auxiliary structure 11 is provided, and the fourth gap A4 refers to the gap where the auxiliary structure 11 is not provided.

[0150] Referring to Figure 7, which shows the external structure of the support member 10 of the fourth embodiment of the stylus, the support member 10 has both a third gap A3 with an auxiliary structure 11 and a fourth gap A4 without an auxiliary structure 11, and each third gap A3 is disposed between two adjacent sets of fourth gaps A4.

[0151] In addition, the size of the third gap A3 is larger than the size of the fourth gap A4.

[0152] In this embodiment of the application, the size of the third gap A3 can be set to be larger than the size of the fourth gap A4. Preferably, the size of the outer rectangle of the whole formed by the multiple fourth gaps A4 included in each group of fourth gaps A4 can be set to be consistent with the size of the third gap A3.

[0153] In summary, in this embodiment, the stylus comprises a support member, a touch sensor, an elastic member, and a housing. The touch sensor is arranged around the support member, and the elastic member is disposed between the housing and the touch sensor. When the elastic member is squeezed by the housing and the touch sensor, it can deform along the radial direction of the housing and / or the support member. Furthermore, the support member has a gap, which the touch sensor at least partially covers. When the touch sensor is deformed by external force, the gap provides clearance for the deformed touch sensor. This application provides clearance for the deformed touch sensor by setting a gap on the support member, thereby enabling external force to trigger the touch sensor. Furthermore, this application also provides an auxiliary structure in the gap that generates elastic deformation when squeezed by external force. This makes it easier for the stylus to detect changes in distance between the conductive object and the touch sensor under external force, based on the elastic deformation of the auxiliary structure, thus improving the detection accuracy and sensitivity of the touch sensor. Additionally, this application uses the elastic member to absorb the assembly gap between the touch sensor and the housing, ensuring a tight fit between the outer wall of the touch sensor and the inner wall of the housing, further improving detection accuracy and sensitivity.

[0154] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0155] 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 stylus, comprising a support, a touch sensor, and a housing, characterized in that: The touch sensor is disposed between the support member and the housing, and is arranged around the support member; A force-applying structure is disposed between the housing and the touch sensor for applying pressure to the touch sensor in the radial direction; A clearance space is provided between the support member and the housing; the touch sensor at least partially covers the clearance space. When the touch sensor is deformed by external force, the clearance space can provide space for the deformed touch sensor.

2. The stylus according to claim 1, characterized in that, The force-applying structure is a first protrusion structure disposed on the inner wall of the housing, and the first protrusion structure is in contact with the touch sensor; The clearance space is formed by a second protrusion structure disposed on the inner wall of the touch sensor or the outer wall of the support member, and the first protrusion structure and the second protrusion structure are misaligned.

3. The stylus according to claim 2, characterized in that, The first protrusion structure is a strip-shaped structure; the length extension direction of the first protrusion structure is consistent with the axial direction of the shell; the space formed between adjacent first protrusion structures constitutes a first gap; The second protrusion structure is a strip-shaped structure; the length extension direction of the second protrusion structure is consistent with the axial direction of the touch sensor or the support member; the space formed between adjacent second protrusion structures constitutes a second gap; the second protrusion structure is correspondingly arranged with the first gap; the first protrusion structure is correspondingly arranged with the second gap; The first protrusion structure is adapted to be subjected to external force to compress the outer wall of the touch sensor, causing the touch sensor to deform in the second gap.

4. The stylus according to claim 3, characterized in that, The cross-sectional shape of the second gap is trapezoidal, and the cross-sectional width of the second gap increases uniformly in the radial inward direction along the touch sensor or the support member. The cross-sectional shape of the second protrusion is trapezoidal, and the cross-sectional width of the second protrusion decreases uniformly in the radial inward direction along the touch sensor or the support member.

5. The stylus according to claim 3, characterized in that, The cross-sectional shape of the first gap is trapezoidal, and the cross-sectional width of the first gap increases uniformly in the radial inward direction of the shell. The cross-sectional shape of the first protrusion is trapezoidal, and the cross-sectional width of the first protrusion decreases uniformly in the radial inward direction of the shell.

6. The stylus according to claim 3, characterized in that, When the touch sensor and the support are assembled into the housing, the first protrusion structure is adapted to press the outer wall of the touch sensor, causing the touch sensor portion at the pressing position to sink in the radial direction inward of the touch sensor, and causing the touch sensor portion at the position corresponding to the first gap to be compressed to fill the first gap.

7. The stylus according to claim 3, characterized in that, The outer wall of the touch sensor is provided with a third protrusion structure that matches the shape of the first gap at the position corresponding to the first gap; the third protrusion structure is a strip-shaped structure; the length extension direction of the third protrusion structure is consistent with the axial direction of the touch sensor; The opposite sides of the side of the third protrusion structure that is in contact with the shell are rounded. When the touch sensor and the support are assembled into the housing, the first protrusion structure is adapted to press the outer wall of the touch sensor, so that the touch sensor portion at the pressing position is sunken in the radial inward direction of the touch sensor, and the third protrusion structure fills the first gap.

8. The stylus according to claim 2, characterized in that, The two opposite sides of the side of the first protrusion structure that is used to contact the touch sensor are rounded. The two opposite sides of the side of the second protrusion structure that is used to contact the support or the touch sensor are rounded.

9. The stylus according to claim 2, characterized in that, The side of the first protrusion structure that comes into contact with the touch sensor is an arc surface; The side of the second protrusion structure that is in contact with the support or the touch sensor is an arc surface.

10. The stylus according to claim 2, characterized in that, The outer wall of the support member is provided with a second protruding structure, which is either integral with or separate from the support member. The inner wall of the touch sensor is provided with a second protrusion structure, which is either integral with or separate from the touch sensor.

11. The stylus according to claim 1, characterized in that, The force-applying structure is an elastic element; the elastic element is disposed between the housing and the touch sensor, and the elastic element is squeezed by the housing and the touch sensor, resulting in deformation along the radial direction of the housing and / or the support; The clearance space is the gap provided on the support member.

12. The stylus according to claim 11, characterized in that, The support member includes: Multiple fourth protrusion structures are disposed on the outer wall of the support member; the fourth protrusion structure is a strip-shaped structure, the length extension direction of the fourth protrusion structure is consistent with the axial direction of the support member, and multiple fourth protrusion structures are arranged at intervals. The space formed between adjacent fourth protrusions constitutes the gap.

13. The stylus according to claim 12, characterized in that, The fourth protrusion structure occupies no more than 50% of its area on the ring.

14. The stylus according to claim 11, characterized in that, The gap is formed by hollowing out the surface of the support member.

15. The stylus according to claim 14, characterized in that, On the circumference where the gap is located, the ratio of the area occupied by the gap to the area occupied by the fixing part of the support is greater than 2:

1.

16. The stylus according to claim 14, characterized in that, At least a portion of the third gap in all of the aforementioned gaps is further provided with an auxiliary structure that undergoes elastic deformation when subjected to external pressure, and the touch sensor at least partially covers the auxiliary structure.

17. The stylus according to claim 16, characterized in that, The auxiliary structure includes: an elastic arm disposed at the third gap position; the elastic arm undergoes elastic deformation when compressed by an external force; One end of the elastic arm is connected to one side of the third gap, and the other end of the elastic arm extends toward the opposite side of the third gap.

18. The stylus according to claim 17, characterized in that, Two elastic arms are provided in one of the third gaps; One end of one of the elastic arms is connected to one side of the third gap, and one end of the other elastic arm is connected to the opposite side of the third gap; The other ends of the two elastic arms are spaced apart by a preset distance.

19. The stylus according to claim 16, characterized in that, The sum of the areas of the auxiliary structure and the fixed part of the support member does not exceed 50% of the area of ​​its annulus.

20. The stylus according to claim 14, characterized in that, At least a portion of the fourth gaps in all the gaps are divided into multiple gap groups, each gap group comprising multiple fourth gap arrays arranged in a manner.

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