CN117032449A - Vibration feedback module and method - Google Patents

Abstract

The application provides a vibration feedback module and a vibration feedback method, and relates to the technical field of intelligent pens. Wherein, this vibration feedback module includes: the pressure sensing unit is provided with a pen point and is used for detecting pressure; and the vibration feedback unit is arranged in the pressure sensing unit or on the periphery of the pressure sensing unit and is electrically connected with the pressure sensing unit, and the vibration feedback unit responds to the pressure signal detected by the pressure sensing unit to vibrate. Through with in the original pressure sensing unit in the integrated pen-holder of vibration feedback unit for pressure sensing unit and vibration feedback unit can set up the inside to the electronic pen easily simultaneously, and the user can obtain more true writing experience.

Description

Vibration feedback module and method

Technical Field

The application relates to the technical field of intelligent pens, in particular to an integrated vibration feedback module and method.

Background

With the development of paperless office work and paperless learning, an electronic pen becomes an important interactive tool in work and learning. The electronic pen is usually matched with equipment such as a touch pad, a tablet personal computer and the like for use, so that the writing of the electronic pen is closer to the hand feeling of real writing, and a vibration assembly can be arranged in a pen holder of the electronic pen.

The electronic pen generally comprises a pen point, a pen holder and a pressure sensing assembly arranged in the pen holder, when a user holds the electronic pen to write or click, the pressure sensing assembly can detect the stress condition of the pen point and generate an electric signal, after the vibration assembly is additionally arranged in the pen holder, a processing circuit can send an instruction to the vibration feedback assembly according to the electric signal generated by the pressure sensing assembly so as to realize vibration feedback, and the vibration feedback enables the user to obtain more real writing experience.

The conventional vibration assembly generally adopts a linear motor (LRA), the linear motor generally comprises a metal rod, a vibration mass block and the like, the linear motor needs to occupy a larger part of space in a small pen holder, and a circuit board, a battery, a pressure sensing assembly, a wireless module and the like are also required to be arranged in the pen holder of the electronic pen, so that the linear motor is difficult to be arranged in the electronic pen to realize vibration feedback.

Disclosure of Invention

Aiming at the technical problems, the application provides the vibration feedback module and the method, and the vibration feedback unit is integrated into the original pressure sensing unit in the pen holder, so that the pressure sensing unit and the vibration feedback unit can be easily arranged in the electronic pen at the same time, and a user can obtain more real writing experience. The technical scheme is as follows:

the application provides a vibration feedback module, comprising: the pressure sensing unit is provided with a pen point and is used for detecting pressure; and the vibration feedback unit is arranged in the pressure sensing unit or on the periphery of the pressure sensing unit and is electrically connected with the pressure sensing unit, and the vibration feedback unit responds to the pressure signal detected by the pressure sensing unit to vibrate.

Further, the pressure sensing unit comprises a force transfer member provided with a pen point and a pressure sensor capable of detecting deformation of the force transfer member, the force transfer member comprises a pair of elastic rods which are oppositely arranged, the vibration feedback unit is arranged between the pair of elastic rods, and the pressure sensor is electrically connected with the vibration feedback unit.

Further, the vibration feedback unit includes: the two ends of the spring are respectively arranged on one of the pair of elastic rods; a coil disposed on the force transfer member around a circumference of the spring and electrically connected to the pressure sensor, the coil being operable to apply an alternating current and generate an alternating magnetic field when the pressure sensor detects a pressure; the magnetic attraction piece is fixed on the spring and can vibrate along the length direction of the spring under the action of an alternating magnetic field generated by the coil.

Further, the force transmission component comprises a first cross rod, a second cross rod and a third cross rod, one end of the first cross rod is fixedly connected with one end of the second cross rod through a first vertical rod, the other end of the second cross rod is fixedly connected with one end of the third cross rod through a second vertical rod, the first vertical rod and the second vertical rod are respectively arranged at an acute angle/obtuse angle/right angle with the second cross rod, the pen point and the side wall of the first cross rod are mutually abutted, the force transmission component is arranged in the pen holder, and the force transmission component is fixedly connected with the inner wall of the pen holder only through the side wall of the third cross rod; the pair of elastic rods are the first vertical rods and the second vertical rods.

Further, the pressure sensor is fixed on the second cross bar, and the coil is arranged around the circumferences of the first vertical bar and the second vertical bar.

Further, the second vertical bar and the third horizontal bar are arranged at an acute angle/obtuse angle/right angle.

Further, the lengths of the first cross rod, the second cross rod and the third cross rod are equal and are opposite to each other in parallel, and the pen point, the first vertical rod and the second vertical rod are perpendicular to the first cross rod/the second cross rod/the third cross rod.

Further, the force transfer member further comprises a fourth cross bar, one end of the first vertical bar far away from the first cross bar is prolonged, and the prolonged end of the first vertical bar is fixedly connected with the side wall of the second vertical bar through the fourth cross bar.

Further, the force transmission component is made of one of metal, plastic or rubber.

Further, the magnetic attraction piece is a permanent magnet or a soft magnet.

Further, the pressure sensing unit comprises at least two pressure sensors, one pressure sensor is fixed on the second cross bar, and the other pressure sensor is fixed on the first vertical bar/the second vertical bar.

The application also specifically provides a vibration feedback method, which comprises the following steps: the pressure sensing unit detects the pressure of the pen point and transmits a detected pressure signal of the pen point to the inside of the pressure sensing unit; the vibration feedback unit receives the nib pressure signal and vibrates in the pressure sensing unit according to the nib pressure signal.

Further, the pressure sensing unit detects nib pressure, specifically including: the pressure sensing unit detects the pressure applied by the pen point and parallel to the pen holder and the pressure applied by the pen point and perpendicular to the pen holder respectively.

The application has the beneficial effects that:

firstly, the vibration feedback unit is arranged in the pressure sensing unit or at the periphery of the pressure sensing unit, the vibration feedback unit is integrated into the original pressure sensing unit in the pen holder, and the occupied space is reduced relative to the scheme that the two units are respectively arranged in the pen holder, so that the pressure sensing unit and the vibration feedback unit can be easily and simultaneously arranged in the electronic pen, and meanwhile, the electronic pen can have the functions of pressure sensing and vibration feedback, and a user can obtain more real writing experience.

And secondly, the force transmission component is fixedly connected with the inner wall of the pen holder only through the side wall of the third cross rod, the force transmission component is characterized in that the force transmission component is fixedly connected with the pen holder only through the side wall of the third cross rod, the contact area between the side wall of the third cross rod and the inner wall of the pen point is large, the connection is stable, the force transmission component is stable enough through the fixed connection of the third cross rod and the pen point, other parts of the force transmission component are not contacted with the pen holder, the first cross rod, the first vertical rod, the second cross rod and the second vertical rod are not rubbed with the side wall of the pen holder, the loss of the pressure born by the pen point in the process of being transmitted to the pressure sensor is small, the writing pressure detected by the pressure sensor is more accurate, and the performance of the pressure sensing unit is better.

Finally, the second vertical rod and the third horizontal rod are arranged at right angles, the force of the second vertical rod on the third horizontal rod is mainly a first component force along the direction vertical to the third horizontal rod, and the second component force parallel to the direction of the third horizontal rod is close to zero, so that most of the force transmitted from the pen point to the third horizontal rod is counteracted by the pressure on the side wall of the third horizontal rod through the inner wall of the pen holder, the force on the third horizontal rod driving the third horizontal rod to slide along the inner wall of the pen holder is very small, and therefore, the connection mode of the third horizontal rod and the inner wall of the pen holder can adopt colloid bonding or threaded connection with simple technology, and compared with welding easy to deviate, the centering of the pen point is well ensured, the yield of the pressure sensing unit is improved, and the cost is saved.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings that are required to be used in the description of the embodiments of the present application will be briefly described below.

FIG. 1 is a schematic diagram of an embodiment;

FIG. 2 is a front view of one embodiment;

FIG. 3 is a front view of a vibration feedback unit in one embodiment;

FIG. 4 is a front view of a pressure sensing unit in one embodiment;

fig. 5 is a front view of a pressure sensing unit in another embodiment.

The same reference numbers will be used throughout the drawings to refer to identical or similar parts or components.

10. A pen point;

20. a force transfer member; 21. a first cross bar; 22. a second cross bar; 23. a third cross bar; 24. a fourth cross bar; 25. a first vertical rod; 26. a second vertical rod;

30. a pressure sensor;

40. a spring; 41. a magnetic attraction piece; 42. a coil;

50. a pen holder.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present application more apparent, the embodiments of the present application will be described in further detail with reference to the accompanying drawings. Examples of the embodiments are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements throughout, or elements having like or similar functionality. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the application.

In the description of the present specification, the terms "embodiment," "present embodiment," "in one embodiment," and the like, if used, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples; furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

In the description of the present specification, the terms "connected," "mounted," "secured," "disposed," "having," and the like are to be construed broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of this specification, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

In one embodiment, as shown in fig. 1 and 2, a vibration feedback module includes a pressure sensing unit on which a pen tip 10 is disposed and a vibration feedback unit disposed inside or at the periphery of the pressure sensing unit. The pressure sensing unit is used for detecting pressure, and the vibration feedback unit is connected to the pressure sensing unit electricity, and the vibration feedback unit responds to the pressure signal that the pressure sensing unit detected and vibrates.

When a user holds the electronic pen to write or click, the pressure sensing unit in the vibration feedback module can detect the stress condition of the pen point 10 on the electronic pen and generate an electric signal, and the vibration feedback unit vibrates according to the electric signal to realize vibration feedback. The vibration feedback unit is arranged in the pressure sensing unit or on the periphery of the pressure sensing unit, the vibration feedback unit is integrated into the original pressure sensing unit in the pen holder 50, and the occupied space of the scheme which is respectively arranged in the pen holder 50 for two units is reduced, so that the pressure sensing unit and the vibration feedback unit can be easily arranged in the electronic pen at the same time, the electronic pen can have the functions of pressure sensing and vibration feedback, and a user can obtain more real writing experience.

In one embodiment, the pressure sensing unit comprises a force transfer member 20 and a pressure sensor 30, the force transfer member 20 being of an elastic material and the pressure sensor 30 being fixed to the force transfer member 20. The nib 10 of the electronic pen is disposed on the force-transmitting member 20, the force-transmitting member 20 includes a pair of elastic rods disposed opposite to each other, and the vibration feedback unit is disposed between the pair of elastic rods, thereby integrating the vibration feedback unit into the inside of the pressure sensing unit. The pressure sensor 30 is electrically connected with the vibration feedback unit, the pressure sensor 30 can obtain the stress condition of the pen point 10 by detecting the deformation of the force transmission component 20 and generate corresponding pressure signals, the vibration feedback unit responds to the pressure signals detected by the pressure sensor 30 to vibrate, different vibration feedback can be obtained by a user according to different stress conditions of the pen point 10, the user can control the movement of the pen point 10 more naturally through the feedback, the interaction experience of the user and the electronic pen is enhanced, and the usability and the user satisfaction of the electronic pen are improved. The corresponding electric signals generated by the pressure sensor 30 can be transmitted to electronic equipment such as a touch pad, a tablet computer and the like, so that various functions such as digital writing input, handwriting recognition, touch interaction, game entertainment and the like of the electronic pen are realized.

In one embodiment, as shown in fig. 1 to 3, the vibration feedback unit includes a spring 40, a coil 42 and a magnetic attraction member 41, both ends of the spring 40 are respectively provided on one of a pair of elastic rods, the coil 42 is provided on the force transmission member 20 around the circumference of the spring 40 and electrically connected to the pressure sensor 30, and the coil 42 can apply alternating current and form an alternating magnetic field on the circumferential side of the spring 40 when the pressure sensor 30 detects pressure. The magnetic attraction piece 41 is fixed on the spring 40, and can drive the spring 40 to move up and down along the length direction of the spring 40 under the action of an alternating magnetic field generated by the coil 42, so as to realize vibration feedback. In this embodiment, the spring 40 and the magnetic attraction piece 41 are disposed inside the pressure sensing unit, the coil 42 may be disposed inside the pressure sensing unit or around the periphery of the pressure sensing unit, and the vibration feedback unit is integrated into the original pressure sensing unit in the pen holder 50, so that the vibration feedback function of the electronic pen is realized, and the user can obtain a more real writing experience. The magnetic attraction member 41 is capable of generating a magnetic field, and has a property of attracting ferromagnetic substances such as metals of iron, nickel, cobalt, and the like, and the magnetic attraction member 41 may be a permanent magnet or a soft magnet.

In one embodiment, as shown in fig. 1-4, the force transmission member 20 includes a first cross bar 21, a second cross bar 22 and a third cross bar 23, one end of the first cross bar 21 is fixedly connected to one end of the second cross bar 22 through a first vertical bar 25, the other end of the second cross bar 22 is fixedly connected to one end of the third cross bar 23 through a second vertical bar 26, that is, the ends of the first cross bar 21, the first vertical bar 25, the second cross bar 22, the second vertical bar 26 and the third cross bar 23 are sequentially and fixedly connected to form the force transmission member 20, and the fixedly connected manner may be welding. Wherein, a pair of elastic rods are a first vertical rod 25 and a second vertical rod 26. The side walls of the nib 10 and the first rail 21 abut against each other, i.e., displacement of the nib 10 due to external force can be transmitted to the first rail 21 through the side walls of the first rail 21. The first vertical rod 25 and the second vertical rod 26 are disposed at an acute angle/obtuse angle/right angle to the second cross rod 22, i.e., the first cross rod 21, the second cross rod 22 and the third cross rod 23 are not collinear. The deformation of the first cross bar 21 under the driving of the pen tip 10 can be transmitted to the second cross bar 22 through the first vertical bar 25, and the pressure sensor 30 is fixed on the second cross bar 22, so that the deformation of the second cross bar 22 can be transmitted to the pressure sensor 30, and the pressure sensor 30 generates corresponding electric signals and outputs the corresponding electric signals through a circuit.

The force transmission member 20 is disposed in the cavity of the barrel 50, with one end abutting the nib 10 and the other end being fixed to the inner wall of the cavity of the barrel 50. The force transmission component 20 is fixedly connected with the inner wall of the pen holder 50 only through the side wall of the third cross rod 23, namely, in the force transmission component 20, the side wall of the third cross rod 23 is fixedly connected with the pen holder 50 only, the contact area between the side wall of the third cross rod 23 and the inner wall of the pen point 10 is large, the connection is stable, the stability of the force transmission component 20 is ensured through the fixed connection of the force transmission component 20 and the pen holder 50, other parts of the force transmission component 20 are not contacted with the pen holder 50, the first cross rod 21, the first vertical rod 25, the second cross rod 22 and the second vertical rod 26 are not rubbed with the side wall of the pen holder 50, the loss of the pressure born by the pen point 10 in the process of being transmitted to the pressure sensor 30 is small, the writing pressure detected by the pressure sensor 30 is more accurate, and the performance of the pressure sensing unit is better.

In one embodiment, the second vertical bar 26 and the third horizontal bar 23 are disposed at an acute/obtuse/right angle. So that when the deformation of the nib 10 is transferred to the third cross bar 23 through the second vertical bar 26, the force of the second vertical bar 26 on the third cross bar 23 can be decomposed into a first component force in a direction perpendicular to the third cross bar 23 and a second component force in a direction parallel to the third cross bar 23 by an orthogonal decomposition method. The first component force can be directly transferred to the inner wall of the penholder 50 and is counteracted by the reaction force of the inner wall of the penholder 50, the second component force is overcome by the fixed connection between the third cross rod 23 and the penholder 50, and the second component force is smaller than the force of the second vertical rod 26 to the third cross rod 23, so that the side wall of the third cross rod 23 and the inner wall of the penholder 50 can ensure the stability of the force transmission component 20 only by threaded connection or adhesive bonding, and the welding with complex process is not needed. Glue can be smeared at a preset position in advance through colloid bonding, threaded connection can be perforated at a preset position in advance, and for welding which is easy to deviate, the centering degree of the pen point 10 can be well guaranteed through colloid bonding and threaded connection, the yield of the pressure sensing unit is improved, and the cost is saved.

In one embodiment, the first cross bar 21, the second cross bar 22 and the third cross bar 23 are equal in length and are opposite in parallel, and the pen tip 10, the first vertical bar 25 and the second vertical bar 26 are perpendicular to the first cross bar 21/the second cross bar 22/the third cross bar 23. In this embodiment, the shape of the force transmission member 20 approximates to a Chinese character 'ji', the included angle between the second vertical rod 26 and the third horizontal rod 23 is a right angle, the force of the second vertical rod 26 to the third horizontal rod 23 is mainly a first component force along the direction perpendicular to the third horizontal rod 23, and the second component force parallel to the direction of the third horizontal rod 23 is close to zero, so that most of the force transmitted from the pen point 10 to the third horizontal rod 23 is counteracted by the pressure on the side wall of the third horizontal rod 23 through the inner wall of the pen holder 50, and the force applied by the third horizontal rod 23 to drive the third horizontal rod 23 to slide along the inner wall of the pen holder 50 is small, therefore, the connection mode of the third horizontal rod 23 and the inner wall of the pen holder 50 can adopt colloid bonding or threaded connection with simple technology, and compared with welding easy to generate deviation, the centering degree of the pen point 10 can be well ensured, the yield of the pressure sensing unit is improved, and the cost is saved.

In other embodiments, the lengths of the first cross bar 21, the second cross bar 22 and the third cross bar 23 may be different, and the positions of the three may be different from each other, so long as the nib 10, the first vertical bar 25 and the second vertical bar 26 are perpendicular to the first cross bar 21/the second cross bar 22/the third cross bar 23, the second cross bar 22 may receive the pressure transmitted by the nib 10 via the first vertical bar 25, and the pressure sensor 30 disposed on the second cross bar 22 may detect the pressure. At the same time, the pressure can be transferred to the third cross bar 23 via the second vertical bar 26, and the third cross bar 23 can counteract the pressure by being fixedly connected with the inner wall of the pen holder 50, so that the stability of the force transmission component 20 is maintained.

In one embodiment, the thickness of the second cross bar 22 is smaller than the thickness of the first cross bar 21/third cross bar 23/first vertical bar 25/second vertical bar 26, so that the elastic modulus of the second cross bar 22 is smaller than the elastic modulus of the first cross bar 21/third cross bar 23/first vertical bar 25/second vertical bar 26, deformation is easier under a certain pressure transmitted from the first vertical bar 25, and the pressure sensor 30 is disposed on the second cross bar 22 and used for detecting the deformation of the second cross bar 22, so that the pressure sensing unit in this embodiment has higher pressure sensitivity and better performance. In other embodiments, the thickness of the second rail 22 may be greater than or equal to the thickness of the other rails or posts, the second rail 22 may still be deformed under force, and the pressure sensor 30 may still detect deformation of the second rail 22.

In one embodiment, the force transfer member 20 further comprises a fourth cross bar 24, the first vertical bar 25 is elongated at an end remote from the first cross bar 21, and the elongated end of the first vertical bar 25 is fixedly connected to the side wall of the second vertical bar 26 by the fourth cross bar 24, which may be welded. Further, the fourth cross bar 24 is perpendicular to the second vertical bar 26. The third cross bar 23 and the second vertical bar 26 cooperate to fix the force transmission component 20, in other embodiments, the deformation of the force transmission component 20 is transmitted to the second vertical bar 26 only through the end part of the second cross bar 22, then transmitted to the third cross bar 23 through the second vertical bar 26 and further counteracted, the deformation in the embodiment is transmitted to the second vertical bar 26 through the two end parts of the second cross bar 22 and the fourth cross bar 24, and then transmitted to the third cross bar 23 through the second vertical bar 26 and counteracted, on one hand, the structure makes the position of the force transmission component 20 in the pen holder 50 more stable, stronger in fatigue resistance and less easy to damage; on the other hand, the pressure sensing unit has stronger integrity and higher quality.

In other embodiments, the pair of elastic bars may be a second cross bar 22 and a fourth cross bar 24 disposed opposite to each other, and the two ends of the spring 40 are disposed on the second cross bar 22 and the fourth cross bar 24, respectively, and the coil 42 is disposed around the circumferences of the first vertical bar 25 and the second vertical bar 26, so that the coil 42 is disposed around the circumference of the spring 40. The force transfer member 20 is made of metal, plastic, rubber or the like. In other embodiments, the coil 42 may also be disposed inside the first vertical rod 25 and the second vertical rod 26, so that the whole vibration feedback unit is disposed inside the pressure sensing unit, and the structural integrity is stronger, so that the vibration feedback unit is more convenient to be disposed in the pen holder 50 of the electronic pen, and the functions of pressure sensing and vibration feedback are realized.

In one embodiment, the pressure sensor 30 is fixedly connected with the second cross bar 22 through a colloid, when the first vertical bar 25 applies a force to the second cross bar 22, the second cross bar 22 deforms, and the pressure sensor 30 attached to the second cross bar 22 can detect the deformation of the second cross bar 22 and send out an electrical signal. Specifically, the pressure sensor 30 is one of a strain type pressure sensor 30, a capacitance type pressure sensor 30, or a piezoelectric type pressure sensor 30. The colloid is acrylic glue, polyacrylate double-sided foam glue (VHB), epoxy glue, acrylic glue, alpha-cyanoacrylate glue (502 glue), ultraviolet light curing glue (UV glue) or the like. In other embodiments, other glue-securing pressure sensor 30 and second rail 22 may also be employed.

In one embodiment, as shown in fig. 5, the pressure sensing unit includes two pressure sensors 30, one pressure sensor 30 being secured to the second rail 22 and the other pressure sensor 30 being secured to the second rail 26.

When a user writes, the pressure on the pen tip 10 is rarely parallel to the pen holder 50, and generally, an oblique pressure is generated on the pen tip 10, and the pressure can be orthogonally decomposed into a force parallel to the direction of the pen holder 50 and a force perpendicular to the direction of the pen holder 50. The deformation of the second rail 22 is mainly driven by a force perpendicular to the second rail 22 (i.e., a force parallel to the direction of the barrel 50), so that the force parallel to the second rail 22 (i.e., a force perpendicular to the direction of the barrel 50) transmitted from the nib 10 is difficult to drive the second rail 22 to deform, and the pressure sensor 30 on the second rail 22 is difficult to detect the pressure in the direction. The force parallel to the second rail 22 (i.e. the force perpendicular to the direction of the pen holder 50) drives the second rail 22 to move transversely as a whole, and further drives the second vertical rod 26 to deform, and the pressure sensor 30 disposed on the second vertical rod 26 detects the pressure in this direction through the deformation. The magnitude and ratio relationship of the signals output by the two pressure sensors 30 may be different. The magnitude and direction of the force applied to the pen tip 10 can be obtained by recording the pressure signals detected by the two pressure sensors 30 and calculating the proportional relationship between the two pressure signals. Therefore, the two pressure sensing units in this embodiment can detect and transmit more accurate stress signals of the pen tip 10, and the vibration feedback unit can generate different vibration feedback according to different stress signals of the pen tip 10, so that a user can obtain more real writing experience.

The two pressure sensors 30 are respectively fixedly connected with the second cross bar 22 and the second vertical bar 26 through colloid, and the pressure sensors 30 are one of strain type pressure sensors 30, capacitance type pressure sensors 30 or piezoelectric type pressure sensors 30. The colloid is acrylic glue, polyacrylate double-sided foam glue (VHB), epoxy glue, acrylic glue, alpha-cyanoacrylate glue (502 glue), ultraviolet light curing glue (UV glue) or the like. In other embodiments, another pressure sensor 30 may be fixed to the first stem 25, and may also detect a force parallel to the second rail 22 (i.e., a force perpendicular to the shaft 50) and transmit a more accurate force signal to the nib 10. In other embodiments, a plurality of pressure sensors 30 may be included, each disposed at a different location of the pressure sensing unit.

In one embodiment, a vibration feedback method, the method includes: the pressure sensing unit detects the pressure of the pen point 10 and transmits a detected pressure signal of the pen point 10 to the inside of the pressure sensing unit; the vibration feedback unit receives the pressure signal of the pen tip 10 and vibrates inside the pressure sensing unit according to the pressure signal of the pen tip 10. The pressure sensing unit transmits the detected pressure to the inside of the electronic pen, namely, the vibration anti-quick unit is integrated into the original pressure sensing unit in the pen holder 50, the occupied space of the scheme which is respectively arranged in the pen holder 50 for the two units is reduced, the pressure sensing unit and the vibration feedback unit can be easily arranged in the electronic pen at the same time, meanwhile, the electronic pen can have the functions of pressure sensing and vibration feedback, and a user can obtain more real writing experience.

In one embodiment, the pressure sensing unit detects the pressure of the pen tip 10, and specifically includes: the pressure sensing unit detects a force applied to the nib 10 in parallel with the barrel 50 and a force applied to the nib perpendicular to the barrel 50, respectively. When a user writes, the pressure on the pen tip 10 is rarely parallel to the pen holder 50, and generally, an oblique pressure is generated on the pen tip 10, and the pressure can be orthogonally decomposed into a force parallel to the direction of the pen holder 50 and a force perpendicular to the direction of the pen holder 50. The pressure sensing unit detects the force applied by the pen tip 10 and parallel to the pen holder 50 and the force applied by the pen tip perpendicular to the pen holder 50, and the magnitude and direction of the force applied by the pen tip 10 can be obtained by recording pressure signals in two directions and calculating the proportional relationship of the two pressure signals. Therefore, the force signal of the pen point 10 can be detected and transmitted more accurately, and the vibration feedback unit can generate different vibration feedback according to different force signals of the pen point 10, so that a user can obtain more real writing experience.

In one embodiment, an electronic pen includes a processing module, a transmission module, and a vibration feedback module in any of the above embodiments. The transmission module, the pressure sensor 30 and the coil 42 are all electrically connected with the processing module, the pressure sensor 30 converts the detected writing pressure into an electric signal and transmits the electric signal to the processing module, the processing module transmits the processed signal to terminal equipment such as a touch screen, a tablet personal computer and the like through the transmission module, and the coil 42 is electrified with variable current according to the signal. The electronic pen has the function of sensing writing pressure, and can automatically adjust the thickness of handwriting according to the size of the writing pressure, so as to outline the well-defined image. Because the friction between the force transmission component 20 of the pressure sensing unit and the inner wall of the pen holder 50 is smaller, the loss of the pressure received by the pen point 10 in the process of being transmitted to the pressure sensor 30 is smaller, the writing pressure detected by the pressure sensor 30 is more accurate, and the connection mode between the third cross rod 23 of the force transmission component 20 and the inner wall of the pen holder 50 adopts colloid bonding or threaded connection with simple process, compared with welding which is easy to deviate, the centering of the pen point 10 can be well ensured, and therefore, the electronic pen provided with the pressure sensing unit has better performance. The coil 42 forms a variable magnetic field at the periphery of the spring 40, and the magnetic attraction piece 41 drives the spring 40 to move up and down along the length direction of the spring 40 under the action of the variable magnetic field, so that vibration feedback is realized. The vibration feedback unit responds to the pressure signal detected by the pressure sensor 30 to vibrate, and according to different stress conditions of the pen tip 10, a user can obtain different vibration feedback, and the feedback can enable the user to control the movement of the pen tip 10 more naturally, so that the interaction experience of the user and the electronic pen is enhanced, and the usability and the user satisfaction of the electronic pen are improved. The embodiments have been described so as to facilitate a person of ordinary skill in the art in order to understand and apply the present technology, it will be apparent to those skilled in the art that various modifications may be made to these examples and that the general principles described herein may be applied to other embodiments without undue burden. Therefore, the present application is not limited to the above embodiments, and modifications to the following cases should be within the scope of protection of the present application: (1) the technical scheme of the application is taken as the basis and combined with the new technical scheme implemented by the prior common general knowledge, and the technical effect produced by the new technical scheme is not beyond that of the application; (2) equivalent replacement of part of the characteristics of the technical scheme of the application by adopting the known technology produces the technical effect the same as that of the application; (3) the technical scheme of the application is taken as a basis for expanding, and the essence of the expanded technical scheme is not beyond the technical scheme of the application; (4) equivalent transformation made by the content of the specification and the drawings of the application is directly or indirectly applied to other related technical fields.

Claims (13)

1. A vibration feedback module, comprising:

the pressure sensing unit is provided with a pen point and is used for detecting pressure;

and the vibration feedback unit is arranged in the pressure sensing unit or on the periphery of the pressure sensing unit and is electrically connected with the pressure sensing unit, and the vibration feedback unit responds to the pressure signal detected by the pressure sensing unit to vibrate.

2. The vibration feedback module according to claim 1, wherein the pressure sensing unit comprises a force transfer member provided with a pen tip and a pressure sensor that detects deformation of the force transfer member,

the force transfer member includes a pair of elastic rods disposed opposite to each other, the vibration feedback unit is disposed between the pair of elastic rods, and the pressure sensor and the vibration feedback unit are electrically connected.

3. The vibration feedback module of claim 2, wherein the vibration feedback unit comprises:

the two ends of the spring are respectively arranged on one of the pair of elastic rods;

a coil disposed on the force transfer member around a circumference of the spring and electrically connected to the pressure sensor, the coil being operable to apply an alternating current and generate an alternating magnetic field when the pressure sensor detects a pressure;

the magnetic attraction piece is fixed on the spring and can vibrate along the length direction of the spring under the action of an alternating magnetic field generated by the coil.

4. The vibration feedback module according to claim 3, wherein the force transmission member comprises a first cross bar, a second cross bar and a third cross bar, one end of the first cross bar is fixedly connected with one end of the second cross bar through a first vertical bar, the other end of the second cross bar is fixedly connected with one end of the third cross bar through a second vertical bar, the first vertical bar and the second vertical bar are respectively arranged at an acute angle/obtuse angle/right angle with the second cross bar, the pen point and the side wall of the first cross bar are mutually abutted, the force transmission member is arranged in the pen holder and is fixedly connected with the inner wall of the pen holder only through the side wall of the third cross bar;

the pair of elastic rods are the first vertical rods and the second vertical rods.

5. The vibration feedback module of claim 4 wherein the pressure sensor is fixed to the second cross bar and the coil is disposed circumferentially about the first and second cross bars.

6. The vibration feedback module of claim 5 wherein the second vertical bar and the third horizontal bar are disposed at an acute/obtuse/right angle.

7. The vibration feedback module of claim 6 wherein the first, second and third cross bars are equal in length and are aligned in parallel, and the nib, first and second vertical bars are perpendicular to the first/second/third cross bars.

8. The vibration feedback module of claim 7 wherein the force transfer member further comprises a fourth cross bar, wherein the first vertical bar is elongated at an end thereof remote from the first cross bar, and wherein the elongated end of the first vertical bar is fixedly connected to the side wall of the second vertical bar by the fourth cross bar.

9. A vibration feedback module according to any one of claims 2-8, wherein the force transfer member is one of metal, plastic or rubber.

10. A vibration feedback module according to any one of claims 3-7 wherein the magnetic attraction member is a permanent magnet or a soft magnet.

11. The vibration feedback module according to any one of claims 4-7, wherein said pressure sensing unit comprises at least two of said pressure sensors, one of said pressure sensors being secured to said second cross bar and the other of said pressure sensors being secured to said first/second vertical bars.

12. A method of vibration feedback, the method comprising:

the pressure sensing unit detects the pressure of the pen point and transmits a detected pressure signal of the pen point to the inside of the pressure sensing unit;

the vibration feedback unit receives the nib pressure signal and vibrates in the pressure sensing unit according to the nib pressure signal.

13. The vibration feedback method of claim 12, wherein the pressure sensing unit detects the nib pressure, and specifically comprises:

the pressure sensing unit detects the pressure applied by the pen point and parallel to the pen holder and the pressure applied by the pen point and perpendicular to the pen holder respectively.