Vibration feedback module, electronic equipment and control method

Abstract

The invention provides a vibration feedback module which comprises a cover plate and a vibration assembly, and the cover plate is used for receiving operation data of an operation body. And the vibration assembly is arranged below the cover plate, and the vibration assembly comprises a plurality of vibration units which are arranged at intervals in the horizontal direction. The vibration unit comprises a mover and a stator which are arranged at intervals in the vertical direction, and the mover can do reciprocating motion relative to the stator so as to generate vibration in the vertical direction. And the plurality of vibration units can respond to the operation data to sequentially execute corresponding vibration actions so as to provide vibration feedback in the horizontal direction. The invention further provides electronic equipment and a control method.

Description

Technical Field

[0001] The present disclosure relates to the field of vibration feedback technology, and in particular to a vibration feedback module, an electronic device, and a control method. Background Art

[0002] Linear motors are key components used in electronic devices to provide tactile feedback. They can simulate the sense of touch by generating vibrations, thereby enhancing the interactive experience between users and devices.

[0003] In the related art, linear motors usually adopt a structure of a magnet vibrator and a spring. The resonance frequency range of this linear motor is relatively narrow, and the effect of vibration feedback needs to be improved. Summary of the invention

[0004] In view of this, the present disclosure provides a vibration feedback module, an electronic device and a control method.

[0005] One aspect of the present disclosure provides a vibration feedback module, including: a cover plate and a vibration component, the cover plate is used to receive operation data of an operating body; the vibration component is arranged below the cover plate, the vibration component includes a plurality of vibration units arranged at intervals in the horizontal direction; the vibration unit includes a mover and a stator arranged at intervals in the vertical direction, the mover can reciprocate relative to the stator to generate vibration in the vertical direction; wherein the plurality of vibration units can respond to the operation data and perform corresponding vibration actions in sequence to provide vibration feedback in the horizontal direction.

[0006] According to an embodiment of the present disclosure, the vibration component also includes a first driver connected to the signals of several vibration units, and the vibration feedback module also includes a control chip connected to the first driver signal; the control chip is capable of processing the operating data into corresponding drive control signals, so that the first driver responds to the drive control signals and drives the several vibration units in sequence to perform corresponding vibration actions; wherein the time interval between the first driver driving two adjacent vibration units is a first duration.

[0007] According to an embodiment of the present disclosure, the vibration component also includes a plurality of second drivers corresponding to the plurality of vibration units, and the vibration feedback module also includes a control chip connected to the plurality of second driver signals; the control chip is capable of processing the operating data into a plurality of drive control signals, so that the plurality of second drivers respond to the corresponding drive control signals and sequentially drive the corresponding vibration units to perform corresponding vibration actions; wherein the phase difference between the vibration waveforms of two adjacent vibration units is a first angle.

[0008] According to an embodiment of the present disclosure, the stator includes a coil, and the coils included in the stators of several vibration units are the same or different.

[0009] According to an embodiment of the present disclosure, the coils included in the stators of two adjacent vibration units among the plurality of vibration units differ by a first number of turns; the vibration component also includes a third driver connected to the signals of the plurality of vibration units, and the vibration feedback module also includes a control chip connected to the signals of the third driver; the control chip is capable of processing the operating data into corresponding drive control signals, so that the third driver responds to the drive control signals and simultaneously drives the plurality of vibration units to perform corresponding vibration actions.

[0010] According to an embodiment of the present disclosure, the vibration unit further includes a first damping member connected to the mover and / or a second damping member connected to the stator, for absorbing the vibration inertia force generated by the vibration unit.

[0011] Another aspect of the present disclosure provides an electronic device, including: a first shell, the first shell is formed with a receiving groove with an opening; a vibration feedback module arranged in the receiving groove. The vibration feedback module includes: a cover plate, which is blocked at the opening and is used to receive the operation data of the operating body; a vibration component, which is arranged below the cover plate, and the vibration component includes a plurality of vibration units arranged at intervals along the bottom wall of the receiving groove; the vibration unit includes a mover and a stator arranged at intervals along the vertical direction, and the mover can reciprocate relative to the stator to generate vibration in the vertical direction; wherein the plurality of vibration units can perform corresponding vibration actions in sequence in response to the operation data to provide vibration feedback in the horizontal direction.

[0012] According to an embodiment of the present disclosure, there is a gap between the cover plate and the edge of the opening, or the area of ​​the cover plate is larger than the area of ​​the opening; and / or the vibration unit also includes a second damping member connected to the stator and the bottom wall of the accommodating slot to absorb the vibration inertia force generated by the vibration unit.

[0013] Another aspect of the present disclosure also provides a control method, including: in response to obtaining operation data of a cover plate of a vibration feedback module acting on an electronic device, generating a target drive control signal based on the operation data; controlling a target driver of the vibration feedback module to drive several vibration units of the vibration feedback module to perform corresponding vibration actions in sequence in response to the target drive control signal to output vibration feedback in a horizontal direction.

[0014] According to an embodiment of the present disclosure, the target driver of the vibration feedback module is controlled to drive several vibration units of the vibration feedback module to perform corresponding vibration actions in sequence in response to a target drive control signal, including at least one of the following: the only driver of the vibration feedback module is controlled to drive several vibration units in sequence or simultaneously to perform corresponding vibration actions in response to a target drive control signal; several drivers of the vibration feedback module are controlled to drive the several vibration units separately or simultaneously to perform corresponding vibration actions in response to several drive control signals. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The above and other objects, features and advantages of the present disclosure will become more apparent through the following description of the embodiments of the present disclosure with reference to the accompanying drawings, in which:

[0016] Figure 1 A graph schematically showing the frequency characteristics of each sensory unit of a finger cell;

[0017] Figure 2 A schematic diagram schematically showing the sound effects of vibrations in different frequency ranges;

[0018] Figure 3 The schematic diagram of the structure of a conventional linear motor is shown;

[0019] Figure 4 The schematic diagram of the frequency response curve of a conventional linear motor is shown schematically;

[0020] Figure 5 The structure diagram of the vibration feedback module according to the embodiment of the present disclosure is schematically shown;

[0021] Figure 6a The frequency response curve of a conventional linear motor is schematically shown;

[0022] Figure 6b A frequency response curve diagram of a vibration feedback module according to an embodiment of the present disclosure is schematically shown;

[0023] Figure 7a The diagram schematically shows the distribution of residual vibration of a conventional linear motor;

[0024] Figure 7b A schematic diagram schematically shows the distribution of residual vibration of a vibration feedback module according to an embodiment of the present disclosure;

[0025] Figure 8 The schematic diagram shows the working principle of the vibration feedback module according to the embodiment of the present disclosure;

[0026] Fig. 9 A schematic diagram schematically shows a schematic diagram of adjusting parameters of a vibration unit according to an embodiment of the present disclosure;

[0027] Fig.10a Schematically showing a schematic diagram of frequency response curves of different vibration units before phase compensation according to an embodiment of the present disclosure;

[0028] Fig.10b A schematic diagram schematically shows frequency response curves of different vibration units before vibration intensity compensation according to an embodiment of the present disclosure;

[0029] Fig.10c A schematic diagram schematically shows a frequency response curve after parameter compensation according to an embodiment of the present disclosure; and

[0030] Fig.11 A schematic diagram schematically shows the control method process according to an embodiment of the present disclosure. DETAILED DESCRIPTION

[0031] In order to make the objectives, technical solutions and advantages of the present disclosure more clearly understood, the present disclosure is further described in detail below in combination with specific embodiments and with reference to the accompanying drawings.

[0032] The terms used herein are only for describing specific embodiments and are not intended to limit the present disclosure. The terms "comprise", "include", etc. used herein indicate the existence of features, steps, operations and / or components, but do not exclude the existence or addition of one or more other features, steps, operations or components.

[0033] All terms used herein, including technical and scientific terms, have the meanings commonly understood by those skilled in the art, unless otherwise defined. It should be noted that the terms used herein should be interpreted as having a meaning consistent with the context of this specification, and should not be interpreted in an idealized or overly rigid manner.

[0034] When using expressions such as "at least one of A, B, and C, etc.", it should generally be interpreted as the meaning of the expression generally understood by those skilled in the art. For example, "a system having at least one of A, B, and C" should include but not be limited to a system having A alone, B alone, C alone, A and B, A and C, B and C, and / or A, B, C, etc. When using expressions such as "at least one of A, B, or C, etc.", it should generally be interpreted as the meaning of the expression generally understood by those skilled in the art. For example, "a system having at least one of A, B, or C" should include but not be limited to a system having A alone, B alone, C alone, A and B, A and C, B and C, and / or A, B, C, etc.

[0035] It should also be noted that the directional terms mentioned in the embodiments, such as "upper", "lower", "front", "back", "left", "right", etc., are only reference directions of the drawings and are not intended to limit the scope of protection of the present disclosure. Throughout the drawings, the same elements are represented by the same or similar reference numerals. Conventional structures or configurations will be omitted when they may cause confusion in the understanding of the present disclosure.

[0036] Tactile feedback technology provides users with a realistic tactile experience by simulating the tactile perception mechanism of finger cells. The tactile receptors of finger cells mainly include Meissner's Corpuscle, Merkel's Disc, Pacinian Corpuscle and Ruffini Ending. The perceptual characteristics of each tactile receptor can be seen in Table 1.

[0037] Table 1:

[0038]

[0039] FA-1: fast adapting afferent neuron type 1, SA-1: slowly adapting afferent neuron type 1, FA-2: fast adapting afferent neuron type 2, SA-2: slowly adapting afferent neuron type 2.

[0040] Figure 1 A graph schematically shows the frequency characteristics of each sensing unit of a finger cell.

[0041] Combining Table 1 and Figure 1 It can be seen that among the tactile receptors of the finger cells, the annular corpuscles have a large sensing area, fast adaptability and are easy to sense acceleration, and can sense vibration frequencies ranging from 40Hz to 500Hz. Therefore, vibrations are generally stimulated with the annular corpuscles as the target, and through horizontal vibration changes, the human body can have the illusion of actual deformation.

[0042] Figure 2 A schematic diagram schematically showing the sound effects of vibrations in different frequency ranges.

[0043] like Figure 2 As shown in the figure, the resonance frequency will affect the sound of vibration. The higher the vibration frequency, the harsher the sound. When the resonance frequency is lower than 100Hz, the sound produced by vibration is heavy and dull; when the resonance frequency is in the range of 100~250Hz, the vibration sound becomes crisp and clear with a clear click feeling; when the resonance frequency is increased to the range of 250~400Hz, the vibration sound presents a sharp sensory experience.

[0044] Therefore, the resonance frequency can be adjusted to the mid-to-high frequency range, such as 170Hz~250Hz, which can bring a comfortable experience to the annular body while avoiding the discomfort that may be caused by excessively high frequencies.

[0045] Figure 3 The schematic diagram shows the structure of a traditional linear motor.

[0046] like Figure 3As shown, a conventional linear motor is usually composed of a magnet vibrator 31 and springs 32 arranged at both ends. When the linear motor is working, the magnet vibrator 31 will reciprocate in the horizontal direction under the action of the magnetic field, thereby providing vibration feedback in the horizontal direction.

[0047] However, the current linear motor design has the following defects:

[0048] First, several key performance parameters of linear motors, including vibrator (magnet) mass, vibration energy, drive voltage, drive brake (tailing) and vibration noise, are interrelated and affect each other. Existing linear motors focus on the absolute value of vibration acceleration, that is, pursuing higher vibration intensity and faster response speed, which may have a greater impact on other parameters, such as increasing vibration noise and extending drive brake time.

[0049] Secondly, the current linear motor design mainly focuses on generating an obvious vibration peak to give users a vibration prompt. However, this method is relatively abrupt, does not simulate the pressing stroke experience, lacks the effect of delicate driving vibration, and cannot reflect the high-end sense of vibration feedback.

[0050] Figure 4 The frequency response curve of a traditional linear motor is schematically shown.

[0051] like Figure 4 It can be seen that the traditional linear motor is limited by the vibration energy, so the resonance frequency is mostly around 240hz, and the frequency range of the resonance frequency is very narrow. When the motor vibrates, the sound it produces may resonate with the mechanical structure of the product, causing the sound to be slightly harsh, affecting the user experience.

[0052] In addition, the setting of the magnet vibrator and the spring will make it difficult to control the elastic inertia, affecting the braking speed of the motor.

[0053] Based on this, the present disclosure provides a vibration feedback module to solve at least part of the above problems.

[0054] Figure 5 The structural diagram of the vibration feedback module according to an embodiment of the present disclosure is schematically shown.

[0055] According to the vibration feedback module provided by the present disclosure, Figure 5As shown, it includes a cover plate and a vibration component 5. The cover plate is used to receive the operation data of the operating body. The vibration component is arranged below the cover plate, and the vibration component includes a plurality of vibration units arranged at intervals in the horizontal direction. The vibration unit includes a mover 51 and a stator 53 arranged at intervals in the vertical direction, and the mover 51 can reciprocate relative to the stator 53 to generate vibration in the vertical direction. The plurality of vibration units can perform corresponding vibration actions in sequence in response to the operation data to provide vibration feedback in the horizontal direction.

[0056] In an exemplary embodiment, the cover plate includes but is not limited to a touch panel, a pressure panel, or a pressure touch panel, etc. The cover plate may be a glass cover plate, but the present disclosure is not limited thereto, and may also be a plate-shaped structure of other materials.

[0057] In an illustrative embodiment, the cover plate can be used as an interface carrier for interacting with the operating body, such as the cover plate can be a glass cover plate or screen of a touch screen or a pressure screen, which can respond to the operation of the operating body and receive corresponding operation data. The operating body can be a user's finger, a stylus, or other object that can interact with the cover plate. The operation data can be pressure data such as pressure, position, direction, and speed of the operating body when operating the cover plate, as well as touch data, etc.

[0058] According to the embodiments of the present disclosure, Figure 5 As shown, the vibration unit further includes a first damping member 52 connected to the mover 51 and / or a second damping member 54 connected to the stator 53, for absorbing the vibration inertia force generated by the vibration unit.

[0059] The elastic deformation of the first damping member 52 matches the distance between the mover 51 and the stator 53, so that the mover 51 can hit the stator 53 when performing reciprocating motion, thereby generating vibration in the vertical direction.

[0060] In such an embodiment, a damping member is used to replace a traditional metal spring. Since the damping member has a larger damping coefficient than the spring, when the motor (mover) is braked, the residual vibration generated by the inertia of the mover can be effectively locked. The damping member in the present disclosure can be a lightweight structural member with elasticity such as a sponge material or a foam material.

[0061] In an illustrative embodiment, the number of vibration units may be 2, 3, 4 or more. It is understandable that, in a fixed accommodation space, the more vibration units there are, the smaller the mass of each vibration unit can be. By arranging multiple vibration units at intervals in the horizontal direction in the vibration assembly, the mover of each vibration unit can independently reciprocate toward the stator, thereby dispersing the mass of the mover in each vibration unit in the entire vibration feedback module and obtaining a faster vibration response.

[0062] Figure 6aThe frequency response curve of a conventional linear motor is schematically shown; Figure 6b The frequency response curve diagram of the vibration feedback module according to the embodiment of the present disclosure is schematically shown.

[0063] like Figure 6a As shown in the figure, the linear motor with a traditional spring + magnet vibrator combination can maintain 90% of the vibration within + / -5Hz of the resonant frequency. Figure 6b As shown in the figure, after dispersing the mass of the mover, 90% of the vibration amount can be guaranteed at the resonance frequency + / -30Hz, and the mover has a faster vibration response and wide-band characteristics.

[0064] In an exemplary embodiment, the mover of each vibration unit is fixedly connected to the cover plate, the mover and the stator are arranged opposite to each other, and a certain distance is left between the stator and the mover. The mover can reciprocate toward the stator in response to the operation data, and hit the stator through the interaction force to generate vibration in the vertical direction.

[0065] Figure 7a The diagram schematically shows the distribution of residual vibration of a conventional linear motor; Figure 7b The diagram schematically shows the distribution of residual vibration of the vibration feedback module according to an embodiment of the present disclosure.

[0066] like Figure 7a As shown in the figure, for a traditional linear motor with a spring + magnet vibrator combination, when the vibration-triggering action is completed and the drive stops, the inertia of the magnet vibrator will transmit the residual vibration to the entire module through the spring, and residual vibration will exist both inside and outside the vibration feedback module. Figure 7b As shown, by setting a certain gap between the mover and the stator, the vibration feedback module transmits the residual vibration. When the vibration triggering action is completed, the mover cannot hit the stator, so that the residual vibration is only retained on one side of the mover, avoiding the residual vibration from being further transmitted to the stator. At the same time, the first damping member is used to lock the residual vibration, so that the mover can be quickly braked.

[0067] Multiple vibration units can respond to operation data and perform vibration actions in sequence, realize the distribution and transmission of vibration in the horizontal direction, and can achieve a resonance frequency of 170Hz~250Hz, making the experience of the ring body more comfortable. And provide users with rich and delicate vibration feedback.

[0068] According to an embodiment of the present disclosure, the stator includes a coil. Specifically, the stator includes a substrate and a coil surrounding the substrate, the coil can conduct current to generate a magnetic field in response to the operation of the operating body, and the mover includes a magnet, which drives the mover to reciprocate toward the corresponding stator under the action of the magnetic field.

[0069] It is understandable that when the drive of the mover stops vibrating, the coil will generate a reverse electromotive force, which will affect the braking speed of the mover. The conventional practice is to add a reverse drive waveform to speed up the braking of the vibrator, but this method will still have second-order and third-order reverse electromotive forces.

[0070] According to an embodiment of the present disclosure, the mass of the mover in the vibration assembly is dispersed by dividing the vibration assembly into multiple vibration units, thereby reducing the driving force required for each mover. Therefore, the number of turns of the coil in each stator can be reduced, thereby effectively reducing the reverse electromotive force. Therefore, the braking speed of the mover can be increased without increasing the reverse drive waveform.

[0071] According to an embodiment of the present disclosure, the coils included in the stators of several vibration units are the same or different.

[0072] When the coils are the same, the same phase difference between adjacent vibration units can be achieved through asynchronous driving control signals, such as a 90-degree or 60-degree phase difference between the vibration waveforms of adjacent vibration units, or a phase difference of other specific angles, thereby providing rich and delicate vibration feedback.

[0073] When the coils are different, several vibration units can be driven with the same interval duration or different interval durations to perform corresponding vibration actions, and the phase difference between adjacent vibration units can be achieved. For example, the vibration waveforms of adjacent vibration units have a phase difference of 90 degrees or 60 degrees, or other specific angles of phase difference, thereby providing rich and delicate vibration feedback.

[0074] According to an embodiment of the present disclosure, the vibration component further includes a first driver connected to the plurality of vibration unit signals, and the vibration feedback module further includes a control chip connected to the first driver signal. The control chip can process the signals into corresponding drive control signals, so that the first driver responds to the drive control signals and sequentially drives the plurality of vibration units to perform corresponding vibration actions. The time interval between the first driver driving two adjacent vibration units is a first duration.

[0075] In this embodiment, the first driver may be a tactile feedback driver or a piezoelectric driver, etc. The control chip may be a touch chip or a pressure sensing chip, etc., or may be an MCU or a CPU of a host system of an electronic device equipped with the vibration module.

[0076] When the operating body operates the cover plate, the control chip can identify the operation of the operating body, analyze and process the operation data, and generate a corresponding drive control signal. The drive control signal may include parameters such as the start, stop, intensity, frequency, and waveform of the vibration, and the drive control signal is sent to the first driver.

[0077] The first driver can establish signal channels with the plurality of vibration units respectively. After receiving the driving control signal, the first driver converts the driving control signal into a current or voltage signal, and sends the current or voltage signal to the plurality of vibration units through the corresponding signal channel. By setting the time interval for driving two adjacent vibration units to the first duration, different vibration units can have the same or different phase differences, for example, adjacent vibration waveforms can differ by 60 degrees, 90 degrees or 120 degrees, etc., so as to obtain a delicate driving vibration effect.

[0078] According to another embodiment of the present disclosure, the vibration component further includes a plurality of second drivers corresponding to the plurality of vibration units, and the vibration feedback module further includes a control chip connected to the plurality of second driver signals. The control chip can process the operation data into a plurality of drive control signals, so that the plurality of second drivers respond to the corresponding drive control signals and sequentially drive the corresponding vibration units to perform corresponding vibration actions. The phase difference between the vibration waveforms of two adjacent vibration units is a first angle.

[0079] The second driver may be a tactile feedback driver or a piezoelectric driver. When the operating body operates the cover, the control chip can process the operation data into corresponding drive control signals, and the control chip can also split the drive control signals and distribute corresponding drive control signals to each driver.

[0080] Each driver sets a signal channel for the corresponding vibration unit, so as to send the respective driving control signals to the corresponding vibration units. Different drivers are used to control the waveforms of two adjacent vibration units to have a certain phase difference, such as 60 degrees, 90 degrees or 120 degrees, so as to obtain a delicate driving vibration effect.

[0081] According to another embodiment of the present disclosure, the coils included in the stators of two adjacent vibration units among the plurality of vibration units differ by a first number of turns; the vibration component also includes a third driver connected to the signals of the plurality of vibration units, and the vibration feedback module also includes a control chip connected to the third driver signal; the control chip is capable of processing the operating data into corresponding drive control signals, so that the third driver responds to the drive control signals and simultaneously drives the plurality of vibration units to perform corresponding vibration actions.

[0082] The third driver may be a tactile feedback driver or a piezoelectric driver, etc. When the operating body operates the cover plate, the control chip can process the operation data into a corresponding drive control signal and send it to the third driver.

[0083] The third driver establishes signal channels with several vibration units respectively. The third driver can send driving control signals to several vibration units at the same time, and drive the vibration units to vibrate at the same time. The phase of the driving force is changed by adjusting the number of coil turns, and then the vibration phase of the vibration unit is controlled, so as to obtain a delicate driving vibration effect. The best combination of coil turns can be found through experiments and simulations to achieve the required vibration phase difference.

[0084] For example, the vibration component may include 5 vibration units, and the stators of the first vibration unit to the fifth vibration unit are respectively provided with coils of 10 turns, 11 turns, 12 turns, 13 turns and 14 turns. The 5 vibration units are driven simultaneously by a third driver, so that each vibration unit generates a slightly different vibration intensity, frequency or vibration phase difference when receiving the same current, thereby enriching the layering and accuracy of the tactile feedback.

[0085] Figure 8 The schematic diagram shows the working principle of the vibration feedback module according to the embodiment of the present disclosure.

[0086] like Figure 8 As shown, when the cover receives pressure or touch operation, it will generate operation data 810. The control chip 820 can process the operation data. For example, when it is detected that the pressure exceeds a predetermined threshold, the operation data is converted into a drive control signal and transmitted to the driver 830. The driver 830 controls the vibration component 840 to vibrate according to the drive control signal and feeds the vibration back to the cover.

[0087] In an illustrative embodiment, the driver can collect vibration parameters of different vibration units through respective signal channels, and then learn the resonance frequency of each vibration unit through machine learning. It can record the phase difference and vibration intensity difference of different vibration units, and analyze the compensation parameters of each vibration unit, such as phase compensation parameters and vibration intensity compensation parameters, and record them in the driver. The compensation parameters are used to adjust each vibration unit so that each vibration unit tends to be consistent, thereby ensuring that the vibration parameters of each vibration unit meet the working conditions.

[0088] Fig. 9 A schematic diagram of adjusting parameters of a vibration unit according to an embodiment of the present disclosure is schematically shown.

[0089] The driver 920 receives the driving control signal generated by the cover 910, and collects the vibration parameters of each vibration unit 930 respectively, and then uses the learner 940 to perform machine learning on the vibration parameters of each vibration unit 930, and calculates the compensation parameters required for each vibration unit, and then records them in the driver 920.

[0090] Fig.10aSchematically showing a schematic diagram of frequency response curves of different vibration units before phase compensation according to an embodiment of the present disclosure; Fig.10b 10a schematically shows a schematic diagram of frequency response curves of different vibration units before vibration intensity compensation according to an embodiment of the present disclosure; 10c schematically shows a schematic diagram of frequency response curves after parameter compensation according to an embodiment of the present disclosure.

[0091] like Fig.10a , 10b As shown in 10c, before parameter compensation is performed on different vibration units, there are certain phase differences and vibration intensity differences between the different vibration units. After parameter compensation is performed on different vibration units through machine learning, the frequency response curves of the different vibration units tend to be consistent, thereby making the different vibration units tend to be consistent.

[0092] The present disclosure also provides an electronic device, including a first shell and a vibration feedback module. The first shell is formed with a receiving groove having an opening. The vibration feedback module is arranged in the receiving groove. The vibration feedback module includes a cover plate and a vibration component. The cover plate is blocked in the opening, and is used to receive operation data of the operating body. The vibration component is arranged below the cover plate, and the vibration component includes a plurality of vibration units arranged at intervals along the bottom wall of the receiving groove. The vibration unit includes a mover and a stator arranged at intervals along the vertical direction, and the mover can reciprocate relative to the stator to generate vibration in the vertical direction. The plurality of vibration units can perform corresponding vibration actions in sequence in response to the operation data to provide vibration feedback in the horizontal direction.

[0093] According to an embodiment of the present disclosure, the electronic device may be a mobile phone, a tablet computer, or other touch screen devices or virtual reality devices.

[0094] For example, when the electronic device is a mobile phone, the first shell, i.e., the back cover or front frame of the mobile phone, is provided with a receiving groove with an opening. The receiving groove can be hidden in the frame of the mobile phone or at a certain position below the screen. The vibration feedback module can be installed in the receiving groove. The cover plate is sealed on the opening, as a touch sensing layer, to receive the operation data of the user's finger, such as sliding, clicking and other actions. The vibration component is located below the cover plate, and is composed of a plurality of vibration units arranged at intervals along the bottom wall of the receiving groove. Each vibration unit is composed of a mover and a stator, which are arranged at intervals in the vertical direction. When the mover receives a signal from the controller, the mover reciprocates relative to the stator, thereby generating vibration in the vertical direction. Multiple vibration units can respond to the user's operation data and perform corresponding vibration actions in sequence, so that the vibration is transmitted in the horizontal direction, and a vibration perception in the horizontal direction is generated on the user's finger, thereby simulating a variety of rich tactile feedback effects.

[0095] According to an embodiment of the present disclosure, there is a gap between the cover plate and the edge of the opening, or the area of ​​the cover plate is larger than the area of ​​the opening; and / or the vibration unit also includes a second damping member connected to the stator and the bottom wall of the accommodating slot to absorb the vibration inertia force generated by the vibration unit.

[0096] The gap between the cover and the edge of the opening can prevent extrusion deformation in some scenarios. For example, in a smartphone, a vibration feedback module is set under the touch screen. When the user touches the screen, the cover receives the operation data and transmits it to the vibration component. Since there is a gap between the cover and the edge of the opening, even if the user presses the screen hard, it will not cause the cover or the phone frame to deform, thus ensuring the accuracy and stability of the vibration feedback.

[0097] The area of ​​the cover plate is larger than the area of ​​the opening, which can increase the contact area of ​​the operating body in some scenarios, which can make the collection of operation data more accurate and comprehensive. For example, in a game controller, in order to provide richer and more realistic vibration feedback, the vibration feedback module of the controller can be designed so that the area of ​​the cover plate is larger than the area of ​​the opening, so that the user can receive vibration feedback more stably and comprehensively when holding the controller.

[0098] By connecting the second damping member to the stator and the bottom wall of the accommodating groove, when the drive stops, the second damping member can be used to absorb the residual vibration of the stator caused by the impact of the mover, thereby improving the vibration feedback experience.

[0099] The present disclosure also provides a control method, which can be used to control the above electronic device.

[0100] Fig.11 A schematic diagram schematically shows the control method process according to an embodiment of the present disclosure.

[0101] The method includes: operations S1110~1120.

[0102] In operation S1110 , in response to obtaining operation data of a cover plate acting on a vibration feedback module of an electronic device, a target driving control signal is generated based on the operation data.

[0103] In operation S1120, the target driver of the vibration feedback module is controlled to drive the plurality of vibration units of the vibration feedback module to perform corresponding vibration actions in sequence in response to the target driving control signal, so as to output vibration feedback in the horizontal direction.

[0104] In an illustrative embodiment, the operation data may be data such as position, pressure, direction, and speed generated based on operations such as touching, pressing, and sliding the cover.

[0105] In an illustrative embodiment, the target driver includes one, and the target driver establishes signal channels with a plurality of vibration units respectively, so as to drive the corresponding vibration units to perform vibration actions in sequence.

[0106] In an illustrative embodiment, the target driver includes multiple target drivers, and the multiple target drivers respectively establish signal channels with a plurality of vibration units, so that each target driver drives the corresponding vibration unit to perform the vibration action in sequence.

[0107] By driving the multiple vibration units of the vibration feedback module to perform corresponding vibration actions in sequence through the target drive control signal, the distribution and transmission of vibration in the horizontal direction can be realized, thereby providing users with rich and delicate vibration feedback.

[0108] According to an embodiment of the present disclosure, a target driver of a vibration feedback module is controlled to drive several vibration units of the vibration feedback module to perform corresponding vibration actions in sequence in response to a target drive control signal, including at least one of the following: a unique driver of the vibration feedback module is controlled to drive several vibration units in sequence or simultaneously to perform corresponding vibration actions in response to a target drive control signal; several drivers of the vibration feedback module are controlled to drive the several vibration units separately or simultaneously to perform corresponding vibration actions in response to several drive control signals.

[0109] In an illustrative embodiment, the stators of two adjacent vibration units among a plurality of vibration units include the same coil, the target driver includes one, the driver drives the plurality of vibration units in sequence to perform corresponding vibration actions in response to a target drive control signal, and the time interval for the driver to drive two adjacent vibration units is a first duration.

[0110] In an illustrative embodiment, the stators of two adjacent vibration units among the plurality of vibration units include the same coil, the target driver includes a plurality of drivers, and the plurality of drivers of the control vibration feedback module respond to a plurality of drive control signals to drive the plurality of vibration units to perform corresponding vibration actions respectively. The phase difference between the vibration waveforms of the two adjacent vibration units is a first angle.

[0111] In an illustrative embodiment, the stators of two adjacent vibration units among the plurality of vibration units include different coils, and the target driver includes one. The driver drives the plurality of vibration units sequentially or simultaneously in response to a target drive control signal to perform corresponding vibration actions.

[0112] In an illustrative embodiment, the stators of two adjacent vibration units among the plurality of vibration units include different coils, the target driver includes multiple drivers, and the multiple drivers respond to the target drive control signal to drive the plurality of vibration units separately or simultaneously to perform corresponding vibration actions.

[0113] The above embodiments can all enable different vibration units to have a phase difference, thereby obtaining a delicate driving vibration effect.

[0114] The embodiments of the present disclosure are described above. However, these embodiments are only for illustrative purposes and are not intended to limit the scope of the present disclosure. Although the embodiments are described above separately, this does not mean that the measures in the various embodiments cannot be used in combination to advantage. The scope of the present disclosure is defined by the attached claims and their equivalents. Without departing from the scope of the present disclosure, those skilled in the art may make a variety of substitutions and modifications, which should all fall within the scope of the present disclosure.

Claims

1. A vibration feedback module, comprising: A cover plate, used for receiving operation data of the operating body; A vibration assembly is arranged below the cover plate, and the vibration assembly includes a plurality of vibration units arranged at intervals in a horizontal direction; The vibration unit comprises a mover and a stator which are arranged at intervals in the vertical direction, and the mover can reciprocate relative to the stator to generate vibration in the vertical direction; The plurality of vibration units are capable of responding to the operation data and executing corresponding vibration actions in sequence to provide vibration feedback in a horizontal direction.

2. The vibration feedback module according to claim 1, wherein the vibration component further comprises a first driver connected to the plurality of vibration units by signal, and the vibration feedback module further comprises a control chip connected to the first driver by signal; The control chip is capable of processing the operation data into corresponding drive control signals, so that the first driver responds to the drive control signals and sequentially drives the plurality of vibration units to perform corresponding vibration actions; in, The time interval between the first driver driving two adjacent vibration units is a first time length.

3. The vibration feedback module according to claim 1, wherein the vibration component further comprises a plurality of second drivers corresponding to the plurality of vibration units, and the vibration feedback module further comprises a control chip connected to the plurality of second drivers by signal; The control chip can process the operation data into a plurality of drive control signals, so that the plurality of second drivers respond to the corresponding drive control signals and sequentially drive the corresponding vibration units to perform corresponding vibration actions; in, The phase difference between the vibration waveforms of two adjacent vibration units is a first angle. 4 . The vibration feedback module according to claim 1 , wherein the stator comprises a coil, and the coils comprised by the stators in the plurality of vibration units are the same or different.

5. The vibration feedback module according to claim 1 or 4, wherein: The coils included in the stators of two adjacent vibration units among the plurality of vibration units differ by a first number of turns; The vibration component further includes a third driver connected to the plurality of vibration units by signal, and the vibration feedback module further includes a control chip connected to the third driver by signal; The control chip can process the operation data into a corresponding driving control signal, so that the third driver responds to the driving control signal and drives the plurality of vibration units to perform corresponding vibration actions at the same time.

6. The vibration feedback module according to claim 1, wherein: The vibration unit further includes a first damping member connected to the mover and / or a second damping member connected to the stator, for absorbing the vibration inertia force generated by the vibration unit.

7. An electronic device comprising: A first shell, wherein the first shell is formed with a receiving groove having an opening; The vibration feedback module disposed in the receiving groove includes: A cover plate, blocking the opening, for receiving operation data of the operating body; A vibration assembly is arranged below the cover plate, and the vibration assembly includes a plurality of vibration units arranged at intervals along the bottom wall of the receiving groove; The vibration unit comprises a mover and a stator which are arranged at intervals in the vertical direction, and the mover can reciprocate relative to the stator to generate vibration in the vertical direction; The plurality of vibration units are capable of responding to the operation data and executing corresponding vibration actions in sequence to provide vibration feedback in a horizontal direction.

8. The electronic device according to claim 7, wherein there is a gap between the cover plate and the edge of the opening, or the area of ​​the cover plate is larger than the area of ​​the opening; and / or, The vibration unit further includes a second damping member connected to the stator and a bottom wall of the accommodating groove to absorb a vibration inertia force generated by the vibration unit.

9. A control method, comprising: In response to obtaining operation data of a cover plate acting on a vibration feedback module of an electronic device, generating a target drive control signal based on the operation data; The target driver controlling the vibration feedback module drives the plurality of vibration units of the vibration feedback module to perform corresponding vibration actions in sequence in response to the target driving control signal, so as to output vibration feedback in the horizontal direction.

10. The method according to claim 9, wherein: The target driver of the vibration feedback module is controlled to drive the plurality of vibration units of the vibration feedback module to perform corresponding vibration actions in sequence in response to the target drive control signal, including at least one of the following: Controlling the only driver of the vibration feedback module to drive the plurality of vibration units in sequence or simultaneously to perform corresponding vibration actions in response to the target drive control signal; The plurality of drivers controlling the vibration feedback module respond to a plurality of driving control signals to drive the plurality of vibration units separately or simultaneously to perform corresponding vibration actions.

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