An elastic element and an electronic pen
By setting multiple spaced elastic arms and angled connections in the elastic element, the problem of limited elastic element volume is solved, achieving efficient energy storage and stable operation in a small volume, which is suitable for various mechanical and electronic pen systems.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN XINWEI INTELLIGENT TECH CO LTD
- Filing Date
- 2025-05-14
- Publication Date
- 2026-06-30
AI Technical Summary
The limited volume of elastic components restricts their energy storage capacity, affecting their applicable scenarios.
Design an elastic element including a first elastic ring and a second elastic ring arranged at relative intervals along a first direction, and connecting multiple elastic arms therebetween. The elastic arms are evenly distributed through connecting parts arranged at included angles to form a spatial three-dimensional support structure to disperse stress, improve energy storage capacity and working stability.
Despite occupying a small volume, elastic components can store energy effectively, are applicable to a wide range of scenarios, have good operational stability, a long service life, and avoid damage caused by stress concentration.
Smart Images
Figure CN224433207U_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of mechanical component technology, specifically relating to an elastic element and an electronic pen. Background Technology
[0002] Elastic components, as mechanical elements capable of cushioning, damping, storing energy, and guiding, play a vital role in various machines and systems. Specifically, the energy storage function of elastic components manifests as deformation when subjected to external forces, storing energy. When the external force disappears, this energy is gradually released, helping the system return to its normal state.
[0003] Generally, the energy storage capacity of an elastic element is related to factors such as material and volume. Given a fixed material, a larger volume of the elastic element generally results in a greater energy storage capacity. However, when elastic elements are used in products with limited volume, their volume typically affects their energy storage capacity, thus restricting their applicability. Summary of the Invention
[0004] This application aims to provide an elastic element and an electronic pen to solve the problem of limited application scenarios for elastic elements.
[0005] To solve the above-mentioned technical problems, this application is implemented as follows:
[0006] In a first aspect, this application discloses an elastic element, the elastic element comprising: a first elastic ring and a second elastic ring disposed at a relative interval along a first direction, wherein a plurality of elastic arms are connected between the first elastic ring and the second elastic ring, and the plurality of elastic arms are distributed at intervals.
[0007] The elastic arm includes a first connecting part, an elastic connecting part, and a second connecting part. The two ends of the first connecting part are respectively connected to the first elastic ring and one end of the elastic connecting part. The two ends of the second connecting part are respectively connected to the second elastic ring and the other end of the elastic connecting part. The elastic connecting part is set at an angle to the first connecting part and the second connecting part.
[0008] In two adjacent elastic arms, the first connecting portion of one elastic arm is symmetrically arranged with the first connecting portion of the other adjacent elastic arm, the elastic connecting portion of one elastic arm is symmetrically arranged with the elastic connecting portion of the other adjacent elastic arm, and the second connecting portion of one elastic arm is symmetrically arranged with the second connecting portion of the other adjacent elastic arm.
[0009] Optionally, an arc-shaped transition portion is provided between the first connecting portion and the elastic connecting portion, and / or between the second connecting portion and the elastic connecting portion.
[0010] Optionally, when the elastic member is in a static state, the first connecting portion is perpendicular to the elastic connecting portion, and / or the second connecting portion is perpendicular to the elastic connecting portion.
[0011] Optionally, when the elastic member is in a static state, both the first connecting portion and the second connecting portion are parallel to the first direction.
[0012] Optionally, the elastic connecting portion is arranged parallel to the first elastic ring and the second elastic ring.
[0013] Optionally, the first elastic ring, the second elastic ring, and the elastic arm are integrally formed.
[0014] Optionally, the diameter of the first elastic ring is equal to the diameter of the second elastic ring.
[0015] Optionally, the diameter of the first elastic ring is not equal to the diameter of the second elastic ring.
[0016] Optionally, the axis of the first elastic ring is aligned with the axis of the second elastic ring.
[0017] Secondly, this application also discloses an electronic pen, the electronic pen comprising: the elastic element described in any of the above claims.
[0018] In this embodiment, the elastic element has multiple elastic arms disposed between the first elastic ring and the second elastic ring. When the elastic element is subjected to external force, energy can be stored through the elastic deformation of the multiple elastic arms, thereby enhancing the energy storage capacity of the elastic element. Moreover, since the multiple elastic arms are spaced apart, they can deform uniformly when the elastic element is subjected to external force, thus improving the working stability of the elastic element. Furthermore, by symmetrically arranging the first connecting portion, the elastic connecting portion, and the second connecting portion of two adjacent elastic arms, it helps to evenly distribute the load, avoid stress concentration, and reduce the risk of damage to the elastic element due to excessive local stress. Therefore, the elastic element not only has a strong energy storage capacity with a small footprint, making it applicable to a wide range of scenarios, but also has good working stability and a long service life.
[0019] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description
[0020] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:
[0021] Figure 1 This is a schematic diagram of the structure of an elastic element according to an embodiment of this application;
[0022] Figure 2 This is a schematic diagram of another elastic element described in an embodiment of this application;
[0023] Figure 3 yes Figure 2 A schematic diagram of the elastic element from another angle is shown.
[0024] Figure 4 yes Figure 2 The diagram shows the structure of the elastic element at another angle.
[0025] Figure 5 This is a schematic diagram of the structure of an electronic pen according to an embodiment of this application;
[0026] Figure 6 This is a schematic diagram of another electronic pen structure described in an embodiment of this application;
[0027] Figure label:
[0028] 403, elastic element; 4031, first elastic ring; 4032, second elastic ring; 4033, elastic arm; 40331, first connecting part; 40332, elastic connecting part; 40333, second connecting part; 40334, arc-shaped transition part; 10-force-bearing element; 20-fixing element; X, first direction. Detailed Implementation
[0029] The embodiments of this application will now be described in detail. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.
[0030] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise stated, "multiple" means two or more. Furthermore, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.
[0031] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.
[0032] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0033] This application provides an elastic element that can be used in large mechanical systems such as vehicle suspension systems, as well as small systems such as the sensing system of an electronic pen. This application only illustrates the use of the elastic element in an electronic pen as an example; other application scenarios can be described with reference to this description.
[0034] like Figure 1 and Figure 2 The elastic element 403 described in this application embodiment may specifically include: a first elastic ring 4031 and a second elastic ring 4032 that are relatively spaced apart along the first direction X, and a plurality of elastic arms 4033 are connected between the first elastic ring 4031 and the second elastic ring 4032; wherein the plurality of elastic arms 4033 are spaced apart.
[0035] In this embodiment, the elastic element 403 is provided with multiple elastic arms 4033 between the first elastic ring 4031 and the second elastic ring 4032. When the elastic element 403 is subjected to external forces, energy can be stored through the elastic deformation of the multiple elastic arms 4033, thereby improving the energy storage capacity of the elastic element 403. Moreover, since the multiple elastic arms 4033 are spaced apart, they can deform uniformly when the elastic element 403 is subjected to external forces, thus improving the working stability of the elastic element 403. Therefore, the elastic element 403 not only has a strong energy storage capacity with a small footprint, making it applicable to a wide range of scenarios, but also exhibits good working stability.
[0036] Specifically, such as Figure 5 and Figure 6 As shown, the elastic element 403 can be used between the fixing element 20 and the force-receiving element 10. Specifically, the first elastic ring 4031 can be connected to one of the fixing element 20 and the force-receiving element 10, and the second elastic ring 4032 can be connected to the other of the fixing element 20 and the force-receiving element 10. In the application scenario of the elastic element 403 being used in an electronic pen, the fixing element 20 can be the pen shell of the electronic pen or a component fixedly connected to the pen shell, and the force-receiving element 10 can be the pen tip of the electronic pen or a part connected to the pen tip.
[0037] In practical applications, when the force-bearing component 10 is subjected to an external force, it will cause the first elastic ring 4031 or the second elastic ring 4032 connected to it to move accordingly, so that the elastic arm 4033 between the first elastic ring 4031 and the second elastic ring 4032 will deform to store energy. When the external force disappears, the energy stored in these elastic arms 4033 will be gradually released, and the elastic component 403 will return to its normal static state (also known as return to center).
[0038] In the elastic element described in this application embodiment, the cooperative structure design of the elastic ring and the elastic arm 4033 enables the elastic element 403 to form a spatial three-dimensional support structure. This three-dimensional structure can effectively disperse torque, avoid torsional instability of the elastic ring due to force in a single direction, and improve the overall torsional stiffness. By arranging multiple elastic arms 4033 at intervals, the uniformity of the elastic force in the circumferential direction of the elastic element 403 can be improved. In practical applications, by adjusting the misalignment angle of the connecting end and the length of the elastic arm 4033, the stiffness of the elastic element 403 in the radial, axial, and torsional directions can be independently adjusted.
[0039] It should be noted that the connection between the first elastic ring 4031, the second elastic ring 4032 and the fixing member 20 or the force-bearing member 10 can be a direct connection or an indirect connection, and this application does not impose specific limitations on this. The deformation of the elastic arm 4033 can be tension or compression, and this application embodiment does not impose specific limitations on this.
[0040] like Figure 1 and Figure 2 As shown, the direction indicated by the arrow is the first direction X, which can be the axial direction of the first elastic ring 4031 and the second elastic ring 4032.
[0041] Optionally, the elastic arm 4033 may include a first connecting portion 40331, an elastic connecting portion 40332, and a second connecting portion 40333. The two ends of the first connecting portion 40331 are respectively connected to one end of the first elastic ring 4031 and one end of the elastic connecting portion 40332, and the two ends of the second connecting portion 40333 are respectively connected to the other end of the second elastic ring 4032 and the elastic connecting portion 40332. The elastic connecting portion 40332 is arranged at an angle to the first connecting portion 40331 and the second connecting portion 40333.
[0042] In specific applications, by setting the two ends of the elastic connecting part 40332 at an angle to the first connecting part 40331 and the second connecting part 40333, elastic support can be provided from two or more directions, so that the elastic element 403 can deform more flexibly when subjected to forces in different directions, and helps to disperse stress and avoid stress concentration. The stress will gradually disperse along the extension direction of the elastic arm 4033 and be further dispersed at the bending point. The deformation of the elastic element 403 is more uniform, reducing the risk of damage to the elastic element 403 due to excessive local stress.
[0043] In some optional embodiments of this application, such as Figure 3 As shown, the axis of the first elastic ring 4031 is aligned with the axis of the second elastic ring 4032; among two adjacent elastic arms 4033, the first connecting portion 40331 of one elastic arm 4033 is symmetrically arranged with the first connecting portion 40331 of the other adjacent elastic arm 4033, the elastic connecting portion 40332 of one elastic arm 4033 is symmetrically arranged with the elastic connecting portion 40332 of the other adjacent elastic arm 4033, and the second connecting portion 40333 of one elastic arm 4033 is symmetrically arranged with the second connecting portion 40333 of the other adjacent elastic arm 4033.
[0044] Specifically, multiple elastic arms 4033 are arranged circumferentially to form a ring or near-ring structure. By symmetrically arranging the first connecting portion 40331, elastic connecting portion 40332, and second connecting portion 40333 of two adjacent elastic arms 4033, the multiple elastic arms 4033 can provide elastic support in multiple directions. This allows the elastic element 403 to deform flexibly when subjected to forces in different directions. Furthermore, the dispersed layout of the multiple elastic arms 4033 helps to evenly distribute the load and avoid stress concentration. The stress is dispersed to each elastic arm 4033, making the deformation of the elastic element 403 more uniform and reducing the risk of damage to the elastic element 403 due to excessive local stress.
[0045] In some optional embodiments of this application, an arc-shaped transition portion 40334 is provided between the first connecting portion 40331 and the elastic connecting portion 40332, and / or between the second connecting portion 40333 and the elastic connecting portion 40332. The arc-shaped transition portion 40334 can prevent stress concentration and fracture caused by the connection between the first connecting portion 40331, the second connecting portion 40333 and the elastic connecting portion 40332, thereby improving the service life of the elastic arm 4033.
[0046] It should be noted that, in specific applications, those skilled in the art may, depending on the actual situation, provide an arc-shaped transition portion 40334 only between the first connecting portion 40331 and the elastic connecting portion 40332; or, provide an arc-shaped transition portion 40334 only between the second connecting portion 40333 and the elastic connecting portion 40332; or, provide an arc-shaped transition portion 40334 both between the first connecting portion 40331 and the elastic connecting portion 40332 and between the second connecting portion 40333 and the elastic connecting portion 40332. The embodiments of this application do not specifically limit the way the arc-shaped transition portion 40334 is provided.
[0047] Optionally, when the elastic member 403 is in a stationary state, the first connecting portion 40331 is perpendicular to the elastic connecting portion 40332, and / or the second connecting portion 40333 is perpendicular to the elastic connecting portion 40332. In specific applications, when the first connecting portion 40331 and the elastic connecting portion 40332 are perpendicular, and the second connecting portion 40333 and the elastic connecting portion 40332 are also perpendicular, the extension length of the elastic connecting portion 40332 can be maximized within a limited space. Since the elastic connecting portion 40332 is the main component in the elastic arm 4033 that bears the main elastic deformation and stores energy, and the energy storage capacity of the elastic connecting portion 40332 is related to its extension length, the longer the extension length of the elastic connecting portion 40332, the greater the deformation that the elastic arm 4033 can undergo, and correspondingly, the maximum energy that the elastic arm 4033 can store.
[0048] Optionally, when the elastic member 403 is in a stationary state, the extension direction of the first connecting part 40331 and the extension direction of the second connecting part 40333 are both parallel to the first direction X, so that the gap between the elastic connecting part 40332 and the first elastic ring 4031 and the second elastic ring 4032 along the first direction X is as large as possible, thereby providing the elastic connecting part 40332 with the largest possible deformation space.
[0049] It should be noted that, in specific applications, the included angle between the elastic connecting portion 40332 and the first connecting portion 40331 and the second connecting portion 40333 can also be other values, such as 70 degrees, 75 degrees, or 80 degrees. Similarly, the extending directions of the first connecting portion 40331 and the second connecting portion 40333 can also intersect with the first direction X. This application embodiment does not limit this.
[0050] Optionally, the elastic connecting part 40332 is arranged parallel to the first elastic ring 4031 and the second elastic ring 4032, so that the space occupied by the elastic connecting part 40332 between the first elastic ring 4031 and the second elastic ring 4032 is as small as possible, thereby helping to reduce the overall volume of the elastic element 403.
[0051] In some optional embodiments of this application, the first elastic ring 4031, the second elastic ring 4032, and the elastic arm 4033 can be integrally formed, that is, the elastic element is obtained by integral forming process. In this way, not only can the processing steps of the elastic element 403 be reduced, but the structural integrity of the elastic element 403 can also be improved, which is conducive to the control of the processing accuracy of the elastic element 403, thereby helping the elastic element 403 to obtain better elastic deformation capacity.
[0052] For example, the elastic element 403 can be made of metal or plastic. When the elastic element 403 is made of metal, it can be manufactured using a stamping process. When the elastic element 403 is made of plastic, it can be manufactured using an injection molding process. This application does not specifically limit the manufacturing process of the elastic element 403.
[0053] It should be noted that in practical applications, the first elastic ring 4031, the second elastic ring 4032, and the elastic arm 4033 can also be separate structures, that is, the first elastic ring 4031, the second elastic ring 4032, and the elastic arm 4033 are processed separately, and then the first elastic ring 4031, the second elastic ring 4032, and the elastic arm 4033 are connected into a whole.
[0054] For example, if the material of the elastic element 403 is metal, the first elastic ring 4031, the second elastic ring 4032 and the elastic arm 4033 can be processed separately first, and then the first elastic ring 4031, the second elastic ring 4032 and the elastic arm 4033 can be connected into a whole by welding.
[0055] like Figure 1As shown, the diameter of the first elastic ring 4031 is equal to the diameter of the second elastic ring 4032, so that the contact area between the first elastic ring 4031, the second elastic ring 4032 and the fixing member 20 and the force-bearing member 10 is large, thereby improving the connection reliability of the elastic member 403 between the fixing member 20 and the force-bearing member 10.
[0056] In practical applications, when the diameters of the first elastic ring 4031 and the second elastic ring 4032 are equal, the first elastic ring 4031 and the second elastic ring 4032 can be set to have the same structure. In this way, the types of parts in the elastic element 403 can be reduced, which is beneficial to the material control of the elastic element 403 during the processing, reduces the production cost of the elastic element 403 and improves the production efficiency of the elastic element 403.
[0057] like Figure 2 As shown, the diameter of the first elastic ring 4031 is not equal to the diameter of the second elastic ring 4032, so that the elastic element can be used in different installation scenarios. For example, by setting the diameters of the first elastic ring 4031 and the second elastic ring 4032 to be different, a stepped elastic element can be formed to snap onto a stepped fixing member or force-bearing member, thereby improving the connection reliability between the elastic element 403 and the fixing member 20 or the force-bearing member 10.
[0058] In some optional embodiments of this application, the diameter of the end of the elastic arm 4033 near the first elastic ring 4031 can be adapted to the diameter of the first elastic ring 4031 to improve the connection reliability between the elastic arm 4033 and the first elastic ring 4031. Similarly, the diameter of the end of the elastic arm 4033 near the second elastic ring 4032 can be adapted to the diameter of the second elastic ring 4032 to improve the connection reliability between the elastic arm 4033 and the second elastic ring 4032.
[0059] In summary, the elastic element described in the embodiments of this application may include at least the following advantages:
[0060] In this embodiment, the elastic element has multiple elastic arms disposed between the first elastic ring and the second elastic ring. When the elastic element is subjected to external force, energy can be stored through the elastic deformation of the multiple elastic arms, thereby enhancing the energy storage capacity of the elastic element. Moreover, since the multiple elastic arms are spaced apart, they can deform uniformly when the elastic element is subjected to external force, thus improving the working stability of the elastic element. Furthermore, by symmetrically arranging the first connecting portion, the elastic connecting portion, and the second connecting portion of two adjacent elastic arms, it helps to evenly distribute the load, avoid stress concentration, and reduce the risk of damage to the elastic element due to excessive local stress. Therefore, the elastic element not only has a strong energy storage capacity with a small footprint, making it applicable to a wide range of scenarios, but also has good working stability and a long service life.
[0061] This application also provides an electronic pen, which includes the elastic element 403 described above.
[0062] In this embodiment, the structure of the elastic element 403 is the same as that of the elastic element 403 in any of the above embodiments, and its beneficial effects are similar, so they will not be described in detail here.
[0063] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0064] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.
Claims
1. An elastic member characterized by, The elastic element includes: a first elastic ring (4031) and a second elastic ring (4032) arranged at relative intervals along a first direction (X), wherein a plurality of elastic arms (4033) are connected between the first elastic ring (4031) and the second elastic ring (4032), and the plurality of elastic arms (4033) are spaced apart. The elastic arm (4033) includes a first connecting part (40331), an elastic connecting part (40332), and a second connecting part (40333). The two ends of the first connecting part (40331) are respectively connected to one end of the first elastic ring (4031) and one end of the elastic connecting part (40332). The two ends of the second connecting part (40333) are respectively connected to the other end of the second elastic ring (4032) and the other end of the elastic connecting part (40332). The elastic connecting part (40332) is arranged at an angle to the first connecting part (40331) and the second connecting part (40333). In two adjacent elastic arms (4033), the first connecting portion (40331) of one elastic arm (4033) is symmetrically arranged with the first connecting portion (40331) of the other adjacent elastic arm (4033), the elastic connecting portion (40332) of one elastic arm (4033) is symmetrically arranged with the elastic connecting portion (40332) of the other adjacent elastic arm (4033), and the second connecting portion (40333) of one elastic arm (4033) is symmetrically arranged with the second connecting portion (40333) of the other adjacent elastic arm (4033).
2. The elastic element according to claim 1, characterized in that, An arc-shaped transition portion (40334) is provided between the first connecting portion (40331) and the elastic connecting portion (40332), and / or between the second connecting portion (40333) and the elastic connecting portion (40332).
3. The elastic element according to claim 1, characterized in that, When the elastic element is in a stationary state, the first connecting portion (40331) is perpendicular to the elastic connecting portion (40332), and / or the second connecting portion (40333) is perpendicular to the elastic connecting portion (40332).
4. The elastic element according to claim 3, characterized in that, When the elastic member is in a stationary state, both the first connecting part (40331) and the second connecting part (40333) are parallel to the first direction (X).
5. The elastic element according to claim 3, characterized in that, The elastic connecting part (40332) is arranged parallel to the first elastic ring (4031) and the second elastic ring (4032).
6. The elastic element according to claim 1, characterized in that, The first elastic ring (4031), the second elastic ring (4032), and the elastic arm (4033) are integrally formed structures.
7. The elastic element according to claim 1, characterized in that, The diameter of the first elastic ring (4031) is equal to the diameter of the second elastic ring (4032).
8. The elastic element according to claim 1, characterized in that, The diameter of the first elastic ring (4031) is not equal to the diameter of the second elastic ring (4032).
9. The elastic element according to claim 1, characterized in that, The axis of the first elastic ring (4031) is aligned with the axis of the second elastic ring (4032).
10. An electronic pen, characterized in that, The electronic pen includes: the elastic element as described in any one of claims 1 to 9.