Touch pen
By placing an elastic body on the magnetic core and the outer surface of the press rod of the stylus pen, the radial movement of the main rod body is limited, and the problem of collision between the touch part and surrounding components is solved, which reduces abnormal noise and extends the service life.
Patent Information
- Application Number
- CN202420141738.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-19
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-01-19
AI Technical Summary
The tail end touch portion of the existing stylus is prone to collide with surrounding components, resulting in abnormal noise and a reduction in service life.
Elastomers are arranged on the outer surface of part of the magnetic core and the press rod to limit the radial movement of the main rod body and avoid collision with the inner wall of the through hole.
Through the constraints and limitations of the elastic body, the shaking of the components is reduced, the looseness of the tail structure of the stylus is reduced, and the service life is extended.
Smart Images
Figure CN222462021U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of electronic touch control equipment, in particular to a touch control pen. Background Art
[0002] With the development of technology, various electronic terminals have gradually become popular in various scenes of production and life. In order to input the corresponding information into them, various corresponding electronic input devices have also emerged. The stylus is one of the efficient input devices. For example, the stylus can be an electromagnetic pen, a capacitive pen, a scanning pen, or other pen-shaped electronic product terminals.
[0003] In these styluses, in order to improve the convenience of use and input efficiency, a corresponding touch part is usually set at the tail end of the stylus to realize more functions, such as an eraser function. Since the touch part usually generates corresponding control information by pressing, the touch part is an independent component and can move relative to the stylus. In the prior art, in order to provide a certain amount of activity space for the touch part, there will be axial and radial gaps between it and the surrounding structural parts in a natural state. At the same time, due to the existence of the gap, the tail end touch part is more likely to collide with the surrounding parts, thereby generating trivial abnormal noises, reducing the service life of the parts, and affecting the user experience. Utility Model Content
[0004] In view of this, the utility model provides a touch pen, which at least partially solves the technical problem in the prior art that the touch portion at the rear end of the touch pen is more likely to collide with surrounding components.
[0005] According to one aspect of the utility model, a touch pen is provided, comprising:
[0006] A magnetic core having a through hole arranged along a central axis;
[0007] A pressure rod is inserted into the through hole, and a clearance between the pressure rod and the through hole is matched;
[0008] The elastic body is sleeved on the outer surface of a part of the magnetic core and a part of the pressure rod.
[0009] Further, the pressure rod comprises a main rod body and a pressing head;
[0010] The pressing head is fixed to one end of the main rod body;
[0011] Part of the main rod body is penetrated in the through hole.
[0012] Further, the elastomer comprises:
[0013] The first end is sleeved on an end of the magnetic core close to the pressing head;
[0014] The second end is sleeved on an end of the main rod body close to the pressing head and abuts against the pressing head;
[0015] The protrusion has a first protrusion and a second protrusion symmetrically arranged in a direction perpendicular to the central axis; the first protrusion and the second protrusion are both located between the first end and the second end.
[0016] Furthermore, the protrusion is a hollow rotating body structure, and the cross section of the protrusion is convex to a side away from the central axis.
[0017] Furthermore, the maximum outer diameter of the protrusion is greater than the maximum outer diameter of the magnetic core.
[0018] Furthermore, the material of the elastic body is rubber or silicone.
[0019] Furthermore, an interference fit is arranged between the first end and the magnetic core; an interference fit is arranged between the second end and the main rod body.
[0020] Furthermore, it also includes:
[0021] The pen eraser body is slidably sleeved on the outside of the elastic body and part of the magnetic core, and partly located inside the rear shell of the stylus pen;
[0022] An elastic washer is sleeved on the outer side of the magnetic core, and the elastic washer is clamped between the eraser body and the soft rubber seat along the axial direction of the stylus pen;
[0023] The soft rubber seat is arranged along the axial direction of the stylus pen and is in contact with the elastic washer, the magnetic core and the pressure sensor.
[0024] Furthermore, the elastic gasket is made of rubber or foam.
[0025] Furthermore, the eraser body is provided with a limiting protrusion and a limiting ring.
[0026] The inner surface of the stylus pen rear shell is provided with a limiting groove, which is matched with the limiting protrusion and the limiting ring and is used to limit the movement of the pen eraser body in the stylus pen rear shell.
[0027] The technical solution of the utility model has at least the following beneficial effects:
[0028] The utility model is provided with an elastic body 3 on the outer surface of part of the magnetic core 1 and part of the pressure rod 2, and the elastic body 3 has the ability to undergo elastic deformation along the axial direction of the through hole, which can ensure that the pressure rod 2 can maintain movement in the axial direction of the through hole after being subjected to external pressure to generate a corresponding signal. At the same time, since the elastic body 3 is sleeved on the magnetic core 1 and the main rod body 22, and the elastic body 3 can limit the radial movement of the main rod body 22, it can be avoided that the main rod body 22 collides with the inner wall of the through hole when moving axially and makes an abnormal sound. Therefore, through the constraint of the elastic body 3, the movement of the magnetic core 1 and the pressure rod 2 can be limited, the shaking of the components can be reduced, and the looseness of the tail structure of the stylus can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS
[0029] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0030] Figure 1 It is a schematic diagram of the cross-sectional structure of a touch pen in one embodiment of the present application;
[0031] Figure 2 This is a schematic diagram of the cross-sectional structure of an elastic body in another embodiment of the present application;
[0032] Figure 3 This is a schematic diagram of the exploded structure of a stylus pen (the rear shell of the stylus pen is not shown) in another embodiment of the present application.
[0033] Reference numerals
[0034] 1. Magnetic core; 10. Through hole; 2. Pressure rod; 21. Pressing head; 22. Main rod body; 3. Elastic body; 31. First end; 32. Second end; 33. Protrusion; 4. Back shell of stylus pen; 41. Limiting groove; 5. Main body of pen eraser; 51. Limiting ring; 52. Limiting protrusion; 6. Elastic gasket; 7. Soft rubber seat; 8. Pressure sensor. DETAILED DESCRIPTION
[0035] The embodiments of the utility model are described in detail below with reference to the accompanying drawings.
[0036] It should be noted that the following embodiments and features in the embodiments may be combined with each other in the absence of conflict; and, based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in the field without making any creative work are within the scope of protection of the present disclosure.
[0037] It should be noted that various aspects of the embodiments within the scope of the appended claims are described below. It should be apparent that the aspects described herein may be embodied in a wide variety of forms, and any specific structure and / or function described herein is merely illustrative. Based on the present disclosure, it should be understood by those skilled in the art that an aspect described herein may be implemented independently of any other aspect, and two or more of these aspects may be combined in various ways. For example, any number of aspects described herein may be used to implement the device and / or practice the method. In addition, other structures and / or functionalities other than one or more of the aspects described herein may be used to implement this device and / or practice this method.
[0038] As an embodiment of the present utility model, Figures 1 to 3 As shown, a touch pen is provided, including: a magnetic core 1, a pressure rod 2 and an elastic body 3.
[0039] like Figure 1 As shown, the magnetic core 1 has a through hole 10 arranged along the central axis. The through hole 10 is arranged along the central axis of the magnetic core 1 and is used to pass the pressure rod 2.
[0040] The magnetic core 1 is a cylindrical rotating structure with a coil wound around its exterior, and the coil is connected to the corresponding control mainboard. Therefore, during use, due to the mutual influence between the magnetic field of the magnetic core 1 itself and the magnetic field of the corresponding input device (such as a handwriting tablet, electronic tablet), a current will be generated in the coil, thereby generating corresponding multiple control signals.
[0041] like Figure 1 and Figure 3 As shown, the pressure rod 2 includes a main rod body 22 and a pressing head 21. The pressing head 21 is fixed to one end of the main rod body 22 to form a T-shaped structure. Part of the main rod body 22 is inserted into the through hole 10, and the end of the main rod body 22 away from the pressing head 21 is used to connect the pressure sensor 8. The main rod body 22 and the through hole 10 are clearance-matched.
[0042] The pressing head 21 may be a hemispherical structure, which is used to contact the pen eraser body 5 to receive the pressure transmitted from the outside, and the pressure is also transmitted to the pressure sensor 8 via the main rod body 22 to generate a corresponding pressure control signal. The pressure sensor 8 may be an existing pressure sensor used for a handwriting input pen.
[0043] Furthermore, the main rod body 22 and the through hole 10 are clearance-matched to prevent the through hole 10 from affecting the main rod body 22 , so that the pressure from the outside of the stylus pen is smoothly transmitted to the pressure sensor 8 .
[0044] like Figure 1 and Figure 2As shown, the elastic body 3 has the ability to undergo elastic deformation along the axial direction of the through hole 10 . Since the elastic body 3 is sleeved on the magnetic core 1 and the main rod body 22 , the elastic body 3 is used to limit the radial movement of the main rod body 22 .
[0045] The elastic body 3 may be a rubber sleeve made of existing elastic materials such as rubber, silicone, etc.
[0046] In actual use, the pressure rod 2 located inside the magnetic core 1 is a structure for transmitting pressure, which requires that the force conduction be clean and neat without being interfered by surrounding parts, thereby affecting the transmission of force. Although there is a radial gap between the pressure rod 2 and the inner wall of the through hole 10, the existence of the gap is not enough to avoid the collision between the pressure sensor 2 and the surrounding parts, thereby generating abnormal noise.
[0047] In this embodiment, an elastic body 3 is sleeved on the outer surface of part of the magnetic core 1 and part of the pressure rod 2, and the elastic body 3 has the ability to undergo elastic deformation along the axial direction of the through hole 10, thereby ensuring that the pressure rod 2 can keep moving in the axial direction of the through hole 10 after receiving pressure from the outside of the stylus, so as to transmit the pressure to the pressure sensor 8, thereby generating a corresponding signal. At the same time, since the elastomer 3 is sleeved on the magnetic core 1 and the main rod body 22, and the elastomer 3 can limit the radial movement of the main rod body 22, it can be avoided that the main rod body 22 collides with the inner wall of the through hole 10 and emits an abnormal sound. In summary, through the constraint of the elastomer 3, the movement of the magnetic core 1 and the pressure rod 2 can be restricted, the shaking of the components can be reduced, and the looseness of the stylus tail structure can be reduced.
[0048] As another embodiment of the present invention, Figure 2 As shown, the elastic body 3 includes a first end 31 , a second end 32 and a protruding portion 33 .
[0049] The first end 31 is sleeved on one end of the magnetic core 1 close to the pressing head 21. The second end 32 is sleeved on one end of the main rod 22 close to the pressing head 21 and abuts against the pressing head 21. The first end 31 and the magnetic core 1 are arranged with an interference fit. The second end 32 and the main rod 22 are arranged with an interference fit.
[0050] The protrusion 33 is a hollow rotating body structure, having a first protrusion and a second protrusion symmetrically arranged in a direction perpendicular to the central axis; the first protrusion and the second protrusion are both located between the first end 31 and the second end 32, and the protrusion 33 is made of an elastic material. Specifically, the elastic material is rubber or silicone.
[0051] Preferably, the protrusion 33 is a hollow body of revolution structure with equal wall thickness, and the cross section of the protrusion 33 is convexly arranged toward a side away from the central axis of the main rod body 22. In addition, the cross section of the protrusion 33 can also be set as a cross section with equal wall thickness arranged in a transverse S shape.
[0052] In this embodiment, the protrusion 33 is a hollow rotating body structure with equal wall thickness, so that when the pressure rod 2 is subjected to external extrusion force and undergoes compression movement, the protrusion 33 can evenly disperse the compression force to various radial positions, thereby making the radial deformation of the protrusion 33 at various positions basically consistent. This ensures that when the pressure rod 2 undergoes axial compression movement, the radial position of the pressure rod 2 remains unchanged.
[0053] The axial direction in the present invention is the central axis direction of the through hole 10 , and the radial direction in the present invention is the direction indicated by the diameter of the through hole 10 , that is, the direction perpendicular to the central axis.
[0054] As another embodiment of the present invention, the maximum outer diameter of the protrusion 33 is greater than the maximum outer diameter of the magnetic core 1 .
[0055] Specifically, in order to prevent the magnetic core 1 from shaking radially and then colliding with the inner wall of the eraser body 5, the maximum outer diameter of the protrusion 33 is made larger than the maximum outer diameter of the magnetic core 1. Specifically, the maximum outer diameter of the protrusion 33 can be the maximum outer diameter in an undeformed state or the maximum outer diameter in a deformed state. Under this structural setting, the magnetic core 1 will not collide with the inner wall of the eraser body 5. Even if a collision occurs, it will be the protrusion 33 that collides with the inner wall of the eraser body 5, and no small abnormal noise will be generated.
[0056] As another embodiment of the present invention, Figure 1 and Figure 3 As shown, the connection structure also includes: a pen eraser body 5, a soft rubber seat 7 and an elastic gasket 6.
[0057] The eraser body 5 is slidably sleeved outside the elastic body 3 and part of the magnetic core 1, and is partially located inside the stylus rear shell 4. The eraser body 5 can be a body with an eraser function. Specifically, the eraser body 5 can be a cylindrical shell structure with a hemispherical end surface at one end, and the eraser body 5 is slidably penetrated into the cavity of the stylus rear shell 4.
[0058] The soft rubber seat 7 is arranged along the axial direction of the stylus pen and contacts the elastic washer 6, the magnetic core 1 and the pressure sensor 8. Specifically, the soft rubber seat 7 is a cylindrical rotating structure, and an accommodating groove is arranged on the inner wall of the soft rubber seat 7. In actual use, the soft rubber seat 7 is fixedly mounted on part of the pressure sensor 8, part of the pressure rod 2, and part of the outer wall of the magnetic core 1. Specifically, part of the magnetic core 1 and part of the pressure sensor 8 are accommodated in the accommodating groove located on the inner wall of the soft rubber seat 7, so as to be fixedly mounted with the soft rubber seat 7, thereby maintaining the relative position between the magnetic core 1, the pressure sensor 8 and the stylus back shell 4 stable.
[0059] At the same time, since the eraser body 5 needs to smoothly transfer the pressure from the outside of the stylus to the pressure rod 2, the eraser body 5 needs to have a certain amount of moving space in the axial direction. Correspondingly, due to the existence of the gap, collisions between parts will inevitably occur, thereby generating abnormal noise.
[0060] The elastic washer 6 is sleeved on the outside of the magnetic core 1, and is clamped between the eraser body 5 and the soft rubber seat 7 along the axial direction of the stylus pen. The elastic washer 6 has the ability to undergo elastic deformation along the axial direction of the through hole 10, and the elastic washer 6 is in a compressed state.
[0061] In order to prevent the eraser body 5 from colliding with the soft rubber seat 7 and the stylus pen rear shell 4 in the axial direction, an elastic gasket 6 is provided between the eraser body 5 and the soft rubber seat 7. Since the elastic gasket 6 has the ability to elastically deform along the axial direction of the through hole 10, the axial movement of the eraser body 5 is not affected and can still be carried out normally.
[0062] At the same time, since the elastic gasket 6 is always in a compressed state, it can fill the movable gap of the eraser body 5 through its own elastic restoring force, thereby limiting the shaking of the eraser body 5 and avoiding collision between the eraser body and other components.
[0063] Specifically, the elastic gasket 6 may also be a spring, or an O-type gasket with elastic deformation capability, which is made of rubber or foam.
[0064] Preferably, the O-shaped gasket is made of foam. Since the foam itself has a pore structure, its volume can be adaptively reduced when compressed without spreading to the outside. Since the placement space of the elastic gasket 6 is small and in order not to increase the resistance of the eraser body 5 in the axial movement, an O-shaped gasket made of foam whose volume can be adaptively changed can be preferred.
[0065] As another embodiment of the present invention, Figure 1 and Figure 3 As shown, the eraser body 5 is provided with a limiting protrusion 52 and a limiting ring 51, and the inner surface of the stylus rear shell 4 is provided with a limiting groove 41, which is matched with the limiting protrusion 52 and the limiting ring 51 to limit the movement of the eraser body 5 in the stylus rear shell 4.
[0066] A limiting ring 51 is provided at the bottom of the eraser body 5. A limiting groove is provided inside the stylus pen rear shell 4, and the eraser body 5 is inserted into the stylus pen rear shell 4, so that the limiting ring 51 and the limiting protrusion 52 form a limiting fit with the limiting groove on the inner surface of the stylus pen rear shell 4. By providing the limiting ring 51 and the limiting protrusion 52, when the pressure from the outside of the stylus pen is too large, the movement of the eraser body 5 can be limited to prevent the eraser body 5 from coming out of the stylus pen rear shell 4.
[0067] In the embodiment disclosed by the utility model, an elastic body 3 is sleeved on the outer surface of part of the magnetic core 1 and part of the pressure rod 2, and the elastic body 3 has the ability to undergo elastic deformation along the axial direction of the through hole, so that the pressure rod 2 can be ensured to move in the axial direction of the through hole after being subjected to external pressure to generate a corresponding signal. At the same time, since the elastic body 3 is sleeved on the magnetic core 1 and the main rod body 22, and the elastic body 3 can limit the radial movement of the main rod body 22, it can be avoided that the main rod body 22 collides with the inner wall of the through hole when moving axially and makes an abnormal sound. Therefore, through the constraint of the elastic body 3, the movement of the magnetic core 1 and the pressure rod 2 can be restricted, the shaking of the components can be reduced, and then the looseness of the tail structure of the stylus pen can be reduced, and the service life of the stylus pen can be extended.
[0068] The above are only specific implementations of the utility model, but the protection scope of the utility model is not limited thereto. Any changes or substitutions that can be easily thought of by a person skilled in the art within the technical scope disclosed by the utility model should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.
Claims
1. A touch pen, characterized in that: include: A magnetic core (1) having a through hole (10) arranged along a central axis; A pressure rod (2) is inserted into the through hole (10), and the pressure rod (2) and the through hole (10) are clearance-matched; The elastic body (3) is sleeved on the outer surface of a portion of the magnetic core (1) and a portion of the pressure rod (2).
2. The touch pen according to claim 1, characterized in that: The pressing rod (2) comprises a main rod body (22) and a pressing head (21); The pressing head (21) is fixed to one end of the main rod body (22); Part of the main rod body (22) is inserted into the through hole (10).
3. The touch pen according to claim 2, characterized in that: The elastic body (3) comprises: A first end (31) is sleeved on an end of the magnetic core (1) close to the pressing head (21); The second end (32) is sleeved on an end of the main rod (22) close to the pressing head (21) and abuts against the pressing head (21); The protrusion (33) has a first protrusion and a second protrusion symmetrically arranged in a direction perpendicular to the central axis; the first protrusion and the second protrusion are both located between the first end (31) and the second end (32).
4. The touch pen according to claim 3, characterized in that: The protrusion (33) is a hollow rotating body structure, and the cross section of the protrusion (33) is convexly arranged toward a side away from the central axis.
5. The touch pen according to claim 3, characterized in that: The maximum outer diameter of the protrusion (33) is greater than the maximum outer diameter of the magnetic core (1).
6. The touch pen according to claim 1, characterized in that: The elastic body (3) is made of rubber or silicone.
7. The touch pen according to claim 3, characterized in that: The first end (31) and the magnetic core (1) are arranged in an interference fit; the second end (32) and the main rod body (22) are arranged in an interference fit.
8. The touch pen according to claim 1, characterized in that: Also includes: The eraser body (5) is slidably sleeved on the outside of the elastic body (3) and part of the magnetic core (1), and partly located inside the stylus rear shell (4); An elastic washer (6) is sleeved on the outer side of the magnetic core (1), and the elastic washer (6) is clamped between the eraser body (5) and the soft rubber seat (7) along the axial direction of the stylus pen; The soft rubber seat (7) is arranged along the axial direction of the touch pen and is in contact with the elastic washer (6), the magnetic core (1) and the pressure sensor (8).
9. The touch pen according to claim 8, characterized in that: The elastic gasket (6) is made of rubber or foam.
10. The touch pen according to claim 8, characterized in that: The eraser body (5) is provided with a limiting protrusion (52) and a limiting ring (51). The inner surface of the stylus pen rear shell (4) is provided with a limiting groove (41), and the limiting groove (41) is matched with the limiting protrusion (52) and the limiting ring (51) to limit the movement of the eraser body (5) in the stylus pen rear shell (4).