CN215298176U

CN215298176U - Touch feedback module and touch device

Info

Publication number: CN215298176U
Application number: CN202121382939.0U
Authority: CN
Inventors: 王松
Original assignee: Jiangxi Oumaisi Microelectronics Co Ltd
Current assignee: Jiangxi Oumaisi Microelectronics Co Ltd
Priority date: 2021-06-21
Filing date: 2021-06-21
Publication date: 2021-12-24
Anticipated expiration: 2031-06-21

Abstract

The application discloses touch-control feedback module and touch-control device, touch-control feedback module includes: the piezoelectric actuator comprises a touch pad, a first bearing plate, a first piezoelectric motor, a second bearing plate and a second piezoelectric motor. The touch control panel comprises a first part and a second part, the first bearing plate is spaced from the touch control panel, a first transmission structure and a first piezoelectric motor are arranged on the first bearing plate, one end of the first transmission structure, which deviates from the first bearing plate, is connected to the first part, the second bearing plate is spaced from the touch control panel and the first bearing plate, a second transmission structure and a second piezoelectric motor are arranged on the second bearing plate, and one end of the second transmission structure, which deviates from the second bearing plate, is connected to the second part. The touch control feedback module divides the touch control plate into the first part and the second part to carry out respective control, and the feedback uniformity of the touch control feedback module is improved. In addition, through setting up the polylith loading board, increase piezoelectric motor's the space that sets up, avoid structurally producing between each piezoelectric motor and interfere.

Description

Touch feedback module and touch device

Technical Field

The utility model relates to a touch-control technical field especially relates to a touch-control feedback module and touch device.

Background

In order to implement a design without mechanical keys, in the related art, a touch device capable of sensing pressure and implementing touch feedback is often disposed on an electronic device such as a mobile phone, a tablet computer, a laptop computer, a vehicle-mounted device, a touch pad, and the like. In a conventional touch feedback technology, a piezoelectric motor is often arranged in a central area of a touch feedback module, and the piezoelectric motor drives the touch feedback module to realize touch feedback through a piezoelectric effect of the piezoelectric motor. However, since the piezoelectric motor is far away from the edge area of the touch feedback module, when the same pressing force is applied to the touch feedback module, the pressing electrical signal generated by pressing the edge area is smaller than the pressing electrical signal generated by pressing the center area.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model discloses touch-control feedback module and touch device can optimize the touch-control feedback effect of the second part of touch-control board, promotes the feedback homogeneity of touch-control feedback module.

In order to realize the above-mentioned purpose, first aspect, the utility model discloses a touch-control feedback module, include:

a touch pad including a first portion and a second portion connected to an outer periphery of the first portion;

the first bearing plate is arranged at an interval with the touch pad along a direction perpendicular to a touch surface of the touch pad, the first bearing plate is at least arranged corresponding to the first part of the touch pad, a first transmission structure is arranged on the first bearing plate, and one end of the first transmission structure, which is far away from the first bearing plate, is connected with the first part of the touch pad;

the first piezoelectric motor is arranged on the first bearing plate;

the second bearing plate is arranged at intervals with the touch pad and the first bearing plate along a direction perpendicular to the touch surface of the touch pad, the second bearing plate is at least arranged corresponding to the second part, a second transmission structure is arranged on the second bearing plate, and one end of the second transmission structure, which is far away from the second bearing plate, is connected with the second part of the touch pad; and

and the second piezoelectric motor is arranged on the second bearing plate.

The touch control panel is divided into the first part and the second part and is respectively controlled corresponding to the touch control panels of different parts, so that the touch control feedback effect of the second part of the touch control panel can be optimized, the touch control feedback effects of the different parts of the touch control panel are converged, and the feedback uniformity of the touch control feedback module is improved.

In addition, through setting up first loading board and second loading board, promptly, set up the polylith loading board to make piezoelectric motor can set up on the loading board of difference, thereby increase piezoelectric motor's the space that sets up, can avoid structurally producing between each piezoelectric motor and interfere, so that the structure of touch-control feedback module is more reasonable.

As an optional implementation manner, in an embodiment of the first aspect of the present application, the second loading board is multiple pieces, the multiple pieces of the second loading board are all located at one side of the first loading board facing the touch pad, or the multiple pieces of the second loading board are all located at one side of the first loading board facing away from the touch pad, or multiple pieces of the second loading board, part of the second loading board is located at one side of the first loading board facing the touch pad, and the rest of the second loading board is located at one side of the first loading board facing away from the touch pad, so that the touch feedback module can adapt to multiple different usage requirements through multiple different arrangement manners of the first loading board and the second loading board.

As an optional implementation manner, in an embodiment of the first aspect of the present application, when the second carrier plate is a single piece, along a direction perpendicular to the touch surface of the touch pad, at least a part of a projection of the first carrier plate is located on the second carrier plate;

when the second bearing plate is provided with a plurality of second bearing plates, at least part of the projection of the first bearing plate is positioned on at least one of the second bearing plates along the direction vertical to the touch surface of the touch control plate, so that the structure of the touch control feedback module is more compact.

As an optional implementation manner, in an embodiment of the first aspect of the present application, when the second carrier plate is a single piece, along a direction perpendicular to the touch surface of the touch pad, a projection of the first carrier plate is located in a middle of the second carrier plate; alternatively, the first and second electrodes may be,

when the second bearing plates are multiple, the projection of the first bearing plate is positioned in the middle of at least one second bearing plate along the direction perpendicular to the touch control surface of the touch control plate, and the second transmission structure is arranged at the position of the second bearing plate corresponding to the second part, so that the second bearing plate can correspond to the two opposite second parts of the touch control plate, and the structure of the touch control feedback module is more compact.

As an optional implementation manner, in an embodiment of the first aspect of the present application, when the second carrier board is multiple, each of the second carrier boards is respectively disposed corresponding to different positions of the second portion, and the second piezoelectric motor and the second transmission structure are respectively disposed on each of the second carrier boards, so that the second carrier board can implement touch feedback corresponding to multiple different positions of the second portion, and meanwhile, interference between multiple second carrier boards disposed corresponding to different positions of the second portion is avoided, so as to improve the control accuracy of the touch feedback module.

As an optional implementation manner, in an embodiment of the first aspect of the present application, the first piezoelectric motor and the first transmission structure are located on the same side or different sides of the first carrier plate, and the second piezoelectric motor and the second transmission structure are located on the same side or different sides of the second carrier plate.

When the first piezoelectric motor and the first transmission structure are located on the same side of the first carrier plate, the distance between the first piezoelectric motor and the first transmission structure can be minimized, and thus the efficiency of transmitting the vibration generated by the first piezoelectric motor to the first transmission structure can be maximized.

When the first piezoelectric motor and the first transmission structure are located on different sides of the first bearing plate, namely, the first transmission structure is located on one side of the first bearing plate, which faces the touch pad, and the first piezoelectric motor is located on one side of the first bearing plate, which faces away from the touch pad.

As an optional implementation manner, in an embodiment of the first aspect of the present application, the first piezoelectric motor is disposed in the middle of the first loading board, the first transmission structures are multiple, the first transmission structures are disposed at intervals, and each of the first transmission structures is located at an outer periphery of the first piezoelectric motor, so that distances between the first piezoelectric motor and each of the first transmission structures are substantially the same, vibration magnitudes of the touch pads driven by each of the first transmission structures are substantially the same, and feedback uniformity of the touch feedback module is improved.

As an optional implementation manner, in an embodiment of the first aspect of the present application, the touch feedback module further includes a first supporting seat and a second supporting seat, the first supporting seat is disposed on one side of the first loading plate away from the touch pad to fix a position of the first loading plate connected to the portion of the first supporting seat, and enable the first loading plate to vibrate with the portion connected to the first supporting seat as a center, the second supporting seat is disposed on one side of the second loading plate away from the touch pad to fix a position of the second loading plate connected to the portion of the second supporting seat, and enable the second loading plate to vibrate with the portion connected to the second supporting seat as a center.

As an optional implementation manner, in an embodiment of the first aspect of the present application, in a direction perpendicular to the touch surface of the touch pad, the thickness h1 of the first supporting seat is 0.2mm to 4mm, and the thickness h2 of the second supporting seat is 0.2mm to 4 mm; alternatively, the first and second electrodes may be,

the sum of the thickness h1 of the first supporting seat and the thickness h2 of the second supporting seat is 0.2mm-5mm in the direction perpendicular to the touch surface of the touch pad, so that the first bearing plate and the second bearing plate are not easy to collide with each other in the vibration process in the use process, and meanwhile, the whole thickness of the touch feedback module is thinner, so that the light and thin design of the touch feedback module is realized.

As an optional implementation manner, in an embodiment of the first aspect of the present application, the second portions include two, and the two second portions are respectively connected to two sides of the first portion, so as to divide the touch pad into a first portion located in the middle and two second portions located at two sides of the first portion, so as to implement touch feedback by respectively corresponding to the first portion and the second portion, and optimize uniformity of touch feedback of the middle portion and the peripheral portion of the touch pad.

In a second aspect, the present application further discloses a touch device, which includes the touch feedback module set according to the first aspect. Through setting up touch-control feedback module, can make the relatively even touch-control feedback effect of electronic equipment's touch-control board, user's use is experienced.

Compared with the prior art, the beneficial effects of the utility model reside in that:

the embodiment of the utility model provides a touch-control feedback module and touch device, through setting up first loading board and second loading board, make first loading board pass through first transmission structural connection in the first part of touchpad, so that the first piezoelectric motor who locates first loading board corresponds the first part of touchpad and carries out touch-control feedback, and simultaneously, make the second loading board pass through second transmission structural connection in the second part of touchpad, so that the second piezoelectric motor who locates the second loading board corresponds the second part of touchpad and carries out touch-control feedback, namely, through dividing into first part and second part with the touchpad, and the touchpad of corresponding different parts is controlled respectively, thereby can optimize the touch-control feedback effect of the second part of touchpad, make the touch-control feedback effect of the different parts of touchpad converge, promote the feedback homogeneity of touch-control feedback module.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a touch feedback module disclosed in an embodiment of the present application;

fig. 2 is an exploded view of a touch feedback module according to an embodiment of the present disclosure;

fig. 3 is a top view of a touch feedback module disclosed in an embodiment of the present application;

FIG. 4 is a cross-sectional view taken along A-A of FIG. 3;

FIG. 5 is another two cross-sectional views taken along A-A of FIG. 3;

FIG. 6 is yet another two cross-sectional views taken along A-A of FIG. 3;

FIG. 7 is a further cross-sectional view taken along A-A of FIG. 3;

fig. 8 is a top view of the touch feedback module (omitting the first carrier, the first transmission structure and the first piezoelectric motor) disclosed in the embodiment of the present application;

FIG. 9 is a further cross-sectional view taken along A-A of FIG. 3;

FIG. 10 is a cross-sectional view of the first loading plate and the second loading plate of FIG. 3 in a deformed state along the A-A direction;

fig. 11 is a schematic structural diagram of a touch device according to an embodiment of the present application.

Icon: 1. a touch feedback module; 10. a touch pad; 100. a first portion; 101. a second portion; 10a, a touch control surface; 10b, long side; 10c, short side; 11. a first bearing plate; 110. a first transfer structure; 111. a first piezoelectric motor; 112. a first support base; 12. a second carrier plate; 120. a second transfer structure; 121. a second piezoelectric motor; 122. a second support seat; 1a, a top end; 1b, bottom end; 20. a touch device.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the present invention, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are used primarily to better describe the invention and its embodiments, and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation.

Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meaning of these terms in the present invention can be understood by those of ordinary skill in the art as appropriate.

Furthermore, the terms "mounted," "disposed," "provided," "connected," and "connected" are to be construed broadly. For example, it may be a fixed connection, a removable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Furthermore, the terms "first," "second," and the like, are used primarily to distinguish one device, element, or component from another (the specific nature and configuration may be the same or different), and are not used to indicate or imply the relative importance or number of the indicated devices, elements, or components. "plurality" means two or more unless otherwise specified.

In order to improve the convenience of the user and the diversity of instructions that the user can transmit to the electronic device, many electronic devices (e.g., mobile phones, tablet computers, notebook computers, etc.) are equipped with a touch pad, and the touch pad is used for the user to perform pressing or sliding operation with a finger to obtain the instructions of the user. Although the touch pad is far beyond the mechanical keys in terms of functionality, the user still prefers the key feel of the mechanical keys when pressing the mechanical keys in terms of feedback. Therefore, a touch feedback module is started to appear in the related art, so that vibration feedback is generated when a user presses a touch pad, and key feeling similar to that of a mechanical key is realized.

In the touch feedback module in the related art, the piezoelectric motor is usually arranged in the central area of the touch feedback module, the touch feedback module is driven by the piezoelectric effect of the piezoelectric motor to realize touch feedback, because the piezoelectric motor is far away from the edge area of the touch feedback module, when the same pressing force acts on the touch feedback module, the pressing electric signal generated by pressing the edge area is smaller than the pressing electric signal generated by pressing the central area, and similarly, when the piezoelectric motor generates vibration under the piezoelectric effect, the amplitude of the vibration transmitted to the edge area is smaller than the amplitude of the vibration transmitted to the middle area, so that the touch feedback effect of the edge area of the piezoelectric module is poor.

Based on this, the embodiment of the application discloses a touch feedback module and a touch device, which can optimize the touch feedback effect of the second part of the touch pad and improve the feedback uniformity of the touch feedback module.

The technical solution of the present invention will be further described with reference to the following embodiments and the accompanying drawings.

Specifically, as shown in fig. 1 to 3, the touch feedback module 1 includes: the touch panel 10, the first carrier 11, the first piezoelectric motor 111, the second carrier 12, and the second piezoelectric motor 121. The touch pad 10 includes a first portion 100 and a second portion 101 connected to an outer periphery of the first portion 100. The first carrier 11 and the touch pad 10 are spaced apart from each other along a direction perpendicular to the touch surface 10a of the touch pad 10, the first carrier 11 at least corresponds to the first portion 100 of the touch pad 10, the first carrier 11 is provided with a first transmission structure 110, and an end of the first transmission structure 110 away from the first carrier 11 is connected to the first portion 100 of the touch pad 10. The first piezoelectric motor 111 is disposed on the first carrier 11. The second carrier 12 is spaced apart from the touch pad 10 and the first carrier 11 along a direction perpendicular to the touch surface 10a of the touch pad 10, the second carrier 12 at least corresponds to the second portion 101, a second transmission structure 120 is disposed on the second carrier 12, and one end of the second transmission structure 120 departing from the second carrier 12 is connected to the second portion 101 of the touch pad 10. The second piezoelectric motor 121 is disposed on the second carrier 12.

By adopting the touch feedback module 1 of the present embodiment, the first carrier 11 is connected to the first portion 100 of the touch pad 10 through the first transmission structure 110 by disposing the first carrier 11 and the second carrier 12, so that the first piezoelectric motor 111 disposed on the first carrier 11 performs a touch feedback corresponding to the first portion 100 of the touch pad 10, and the second carrier 12 is connected to the second portion 101 of the touch pad 10 through the second transmission structure 120, so that the second piezoelectric motor 121 disposed on the second carrier 12 performs a touch feedback corresponding to the second portion 101 of the touch pad 10, that is, the touch feedback effect of the second portion 101 of the touch pad 10 is optimized by dividing the touch pad 10 into the first portion 100 and the second portion 101 and performing separate control corresponding to different portions of the touch pad 10, the touch feedback effects of different parts of the touch panel 10 converge, and the feedback uniformity of the touch feedback module 1 is improved.

In some embodiments, the touch pad 10 may be a rectangular, circular or other thin plate, and the configuration may be selected according to the actual use requirement, which is not specifically limited in this embodiment.

Alternatively, the second portions 101 may be connected to two opposite sides of the outer circumference of the first portion 100, or the second portions 101 may be connected to one side of the outer circumference of the first portion 100, or the second portions 101 may surround the first portion 100 and be connected to the outer circumference of the first portion 100, in a direction parallel to the touch surface 10a of the touch pad 10. It should be noted that the direction parallel to the touch surface 10a of the touch pad 10 may be any direction parallel to the touch surface 10a of the touch pad 10, and taking the touch pad 10 as a rectangular thin plate as an example, the direction parallel to the touch surface 10a of the touch pad 10 may be an extending direction of any side of the touch pad 10, or may be a direction forming an angle with any side of the touch pad 10, such as an extending direction of a diagonal line of the touch pad 10. As shown in fig. 2 and fig. 3, in the present embodiment, the touch pad 10 is a rectangular thin plate, the touch pad 10 has a long side 10b and a short side 10c, and the direction parallel to the touch surface 10a of the touch pad 10 is the extending direction of the long side 10b of the touch pad 10, along the extending direction of the long side 10b of the touch pad 10, there may be two second portions 101, and the two second portions 101 are respectively located at two opposite sides of the first portion 100, or there may be one second portion 101, and the second portion 101 is located at one side of the first portion 100, or the second portion 101 may surround the periphery of the first portion 100.

It is understood that the division of the touch pad 10 into the first portion 100 and the second portion 101 is for facilitating design of structures capable of implementing touch feedback for different positions of the touch pad 10, and does not represent that the touch pad 10 of the first portion 100 and the second portion 101 is different structures, for example, as shown in fig. 1 to 3, a boundary between the first portion 100 and the second portion 101 is shown by a dotted line in fig. 1 to 3, and fig. 1 to 3 show that the second portion 101 of the touch pad 10 may be two, and the two second portions 101 are respectively located on two opposite sides of the first portion 100.

In some embodiments, the first carrier plate 11 may be a rectangular, triangular, circular, or oval thin plate, and the material of the first carrier plate 11 may be aluminum alloy, bakelite, plastic, stainless steel, or other alloys, so that when the first carrier plate 11 is disposed corresponding to the first portion 100 of the touch pad 10, the elastic limit of the first carrier plate 11 is relatively large, and the first carrier plate can be pressed by the first transmission structure 110 to deform or vibrate under the driving of the first piezoelectric motor 111, and then recover to its original shape without being affected by an additional force, thereby avoiding affecting the feedback accuracy of the touch feedback module 1.

In some embodiments, the first transmission structure 110 may be a block, a column, or the like, so that the first transmission structure 110 can be connected between the first carrier 11 and the touch pad 10 and can transmit force or vibration between the first carrier 11 and the touch pad 10.

Further, the first transmission structure 110 may be made of a material with certain elasticity and certain hardness, such as foam, rubber, and plastic, so as to transmit the force and/or vibration between the first carrier plate 11 and the touch pad 10, and provide a certain buffer for the transmission of the force between the first carrier plate 11 and the touch pad 10, so as to prevent the touch pad 10 from being damaged due to an excessive impact force applied to the touch pad 10 through the first transmission structure 110 during use.

Optionally, the first transmitting structure 110 and the touch pad 10, and the first transmitting structure 110 and the first carrier 11 can be connected by gluing, screwing, magnetic attraction or fastening, so as to fix the relative positions between the first transmitting structure 110 and the touch pad 10 and the first carrier 11, respectively, and prevent the first transmitting structure 110 from separating from the touch pad 10 or the first carrier 11, so as to ensure the normal transmission of the force or vibration between the touch pad 10 and the first carrier 11.

In some embodiments, it is considered that the first carrier 11 is at least disposed corresponding to the first portion 100 of the touch pad 10, and therefore, in order to improve the feedback uniformity of the pressing and improve the feeling of the pressing, the first piezoelectric motor 111 may be connected to the middle portion of the first carrier 11 through one or more connection methods such as gluing or fastening, the first transmission structures 110 may be multiple, the multiple first transmission structures 110 are disposed at intervals, and each first transmission structure 110 may be uniformly distributed on the periphery of the first piezoelectric motor 111, so that the distances between the first piezoelectric motor 111 and each first transmission structure 110 are substantially the same, the first transmission structures 110 drive the touch pad 10 to perform substantially the same vibration, and the feedback uniformity of the touch feedback module 1 is improved.

In some embodiments, in order to improve the transmission efficiency of the vibration when the first piezoelectric motor 111 transmits the vibration to the first transmission structure 110, the first transmission structure 110 may be disposed on one side of the first piezoelectric motor 111 in the deformation direction X1. The deformation direction X1 is a direction in which the first piezoelectric motor 111 can be extended or contracted by an electric field, and is, for example, the deformation direction X1 shown in fig. 2.

Further, the first piezoelectric motor 111 and the first transmission structure 110 may be located on the same side or different sides of the first carrier 11, that is, when the first transmission structure 110 is located on the side of the first carrier 11 facing the touch pad 10, the first piezoelectric motor 111 may also be located on the side of the first carrier 11 facing the touch pad 10, as shown in fig. 4, where fig. 4 shows that the first piezoelectric motor 111 and the first transmission structure 110 are both located on the side of the first carrier 11 facing the touch pad 10. Alternatively, the first piezoelectric motor 111 may also be located on a side of the first carrier 11 away from the touch pad 10, as shown in a in fig. 5, where a in fig. 5 shows that both the first piezoelectric motor 111 and the first transmission structure 110 are located on the side of the first carrier 11 away from the touch pad 10.

Of course, it is understood that, in other embodiments, when there are a plurality of first piezoelectric motors 111, in the plurality of first piezoelectric motors 111, a part of the first piezoelectric motors 111 is located on a side of the first carrier 11 facing the touch pad 10, and another part of the first piezoelectric motors 111 is located on a side of the first carrier 11 facing away from the touch pad 10. For example, as shown in b in fig. 5, b in fig. 5 shows that the number of the first piezoelectric motors 111 is two, wherein one of the first piezoelectric motors 111 is disposed on a side of the first carrier 11 facing the touch pad 10, and the other one of the first piezoelectric motors 111 is disposed on a side of the first carrier 11 facing away from the touch pad 10.

It should be noted that, when the first piezoelectric motor 111 and the first transmission structure 110 are located on the same side of the first carrier 11, the distance between the first piezoelectric motor 111 and the first transmission structure 110 can be the smallest, and therefore the efficiency of transmitting the vibration generated by the first piezoelectric motor 111 to the first transmission structure 110 can be the highest.

When the first piezoelectric motor 111 and the first transmission structure 110 are located on different sides of the first carrier 11, that is, when the first transmission structure 110 is located on one side of the first carrier 11 facing the touch pad 10, and the first piezoelectric motor 111 is located on one side of the first carrier 11 facing away from the touch pad 10, when the user presses the touch pad 10, since the first piezoelectric motor 111 is located away from the touch pad 10, the touch pad 10 can be prevented from colliding with the first piezoelectric motor 111, so that the first piezoelectric motor 111 can be protected.

In some embodiments, the second carrier plate 12 may also have a rectangular, triangular, circular, oval, or other plate-shaped structure, and the material of the second carrier plate 12 may be aluminum alloy, bakelite, plastic, stainless steel, or other alloys, which is not limited in this embodiment.

As can be seen from the foregoing, the second carrier 12 is disposed at an interval with the touch pad 10 and the first carrier 11 along a direction perpendicular to the touch surface 10a of the touch pad 10 (i.e. a surface of the touch pad 10 away from the first carrier 11 for providing touch operation), and for convenience of description, the direction perpendicular to the touch surface 10a of the touch pad 10 is referred to as a direction Y, as shown in fig. 2 and 4.

Referring to fig. 4 and fig. 6, in the direction Y, the second carrier 12 is located on a side of the first carrier 11 facing the touch pad 10, and/or the second loading plate 12 is located on a side of the first loading plate 11 away from the touch pad 10, that is, when the second carrier 12 is a single piece, the second carrier 12 can be located on a side of the first carrier 11 away from the touch pad 10 (as shown in fig. 4), alternatively, the second carrier 12 may be located on a side of the first carrier 11 facing the touch pad 10 (as shown in a of fig. 6, a of fig. 6 shows that the first carrier 11 is one, and the second carrier 11 is one and located on a side of the first carrier 11 facing the touch pad 10. as an example, a through hole may be provided on the second carrier 11, and the first transmission structure 110 passes through the through hole on the second carrier 11 from the first carrier 1 to extend to connect to the touch pad 100). When the second loading board 12 is multiple, the multiple second loading boards 12 may all be located on the side of the first loading board 11 away from the touch pad 10, or all be located on the side of the first loading board 11 facing the touch pad 10, or part of the multiple second loading boards 12 may be located on the side of the first loading board 11 facing the touch pad 10, and the remaining second loading boards 12 may be located on the side of the first loading board 11 facing away from the touch pad 10 (as shown in b in fig. 6, b in fig. 6 shows that the first loading board 11 is one, the second loading boards 12 are two, two second loading boards 12 are respectively located on two sides of the first loading board 11 along the direction Y, as an example, the through holes are provided on the second loading board 12 located on the side of the first loading board 11 facing the touch pad 100, the first transmission structure 110 passes through the through holes on the second loading board 12 from the first loading board 11, to extend to connect to the touch pad 100). It is understood that, as long as the first carrier plate 11 can realize the touch feedback through the first transmission structure 110 corresponding to the first portion 100 of the touch pad 10, and the second carrier plate 12 can realize the touch feedback through the second transmission structure 120 corresponding to the second portion 101 of the touch pad 10, the relative positions of the first carrier plate 11 and the second carrier plate 12 are not particularly limited in this embodiment.

As can be seen from the foregoing, the piezoelectric motor can be extended or contracted under the action of the electric field, and the deformation amount per unit length of the piezoelectric motor is the same under the action of the same electric field, and when the electric field strength tends to be infinite, the deformation amount per unit length of the piezoelectric motor tends to a fixed limit value, so that the longer the total length of the piezoelectric motor in the deformation direction is, the greater the deformation amount the piezoelectric motor can generate under the action of the same electric field, and the greater the deformation limit the piezoelectric motor has.

Based on this, in order to generate vibration of a larger magnitude by the piezoelectric motor so as to make the user obtain feedback with more obvious body feeling, thereby improving the touch feedback effect, the piezoelectric motor having a length as long as possible in the deformation direction can be selected within the size range of the touch feedback module 1. Therefore, the touch feedback module 1 disclosed in the present application is configured by providing multiple layers of loading plates, that is, the first loading plate 11 and the second loading plate 12 are disposed in a layered manner, and the first loading plate 11 and the second loading plate 12 are respectively used for setting the first piezoelectric motor 111 and the second piezoelectric motor 121, so as to increase the area for setting the first piezoelectric motor 111 and the second piezoelectric motor 121, and further, when the piezoelectric motor with a longer length along the deformation direction is selected, it is ensured that interference does not occur between the piezoelectric motors and between the piezoelectric motor and other structures included in the touch feedback module 1.

It should be noted that, as shown in fig. 7, an end of the touch feedback module 1, at which the touch pad 10 is disposed, is defined as a top end 1a, and an end opposite to the touch pad 10 along the direction Y is defined as a bottom end 1 b. Because the second loading board 12 is located on the side of the first loading board 11 away from the touch pad 10, the distance d between the second loading board 12 and the bottom end 1b of the touch feedback module 1 is smaller along the direction Y, so that when a user presses the touch surface 10a of the touch pad 10, the second transmission structure 120 and a part of the second loading board 12 are limited from moving towards the bottom end 1b along the direction Y, and the pressing feeling of the user when pressing the second part 101 of the touch pad 10 is close to a real button, which is good in use experience.

The second carrier plate 12 can be one or more pieces. In an alternative embodiment, the second carrier plate 12 is a single plate, and the second carrier plate 12 can be at least partially projected onto the first carrier plate 11 along a direction (i.e., the direction Y) perpendicular to the touch surface 10a of the touch pad 10, so as to make the structure of the touch feedback module 1 more compact.

Referring to fig. 4 and fig. 6 again, further, in the direction Y, the projection of the first carrier plate 11 may be located in the middle of the second carrier plate 12, the second transmission structure 120 is disposed at the position of the second carrier plate 12 corresponding to the second portion 101, and the second transmission structure 120 disposed on the second carrier plate 12 may be disposed corresponding to the second portion 101, so that when the second portion 101 is located at two sides or the periphery of the first portion 100 along the direction parallel to the touch surface 10a of the touch pad 10, the second carrier plate 12 can be conveniently disposed corresponding to the second portion 101 of the touch pad 10, so that the structure of the touch feedback module 1 is more compact and reasonable, as shown in a in fig. 4 and fig. 6, both of which show that along the direction Y, at least a part of the second carrier plate 12 is projected on the first carrier plate 11.

In another optional embodiment, the second carrier plate 12 is multiple, and at least a part of the projection of at least one second carrier plate 12 of the multiple second carrier plates 12 is located on the first carrier plate 11 along the direction Y, so that the structure of the touch feedback module 1 is more compact. Further, the projection of the first loading board 11 may be located in the middle of at least one second loading board 12, that is, the projection of the first loading board 11 may be located in the middle of one second loading board 12, or may be located in multiple second loading boards 12, and part of the second loading boards 12, or may be located in the middle of all the second loading boards 12, and the second transmission structure 120 may be located at a position where the second loading board 12 corresponds to the second portion 101, so that when the second portion 101 is located on two sides or the periphery of the first portion 100 along the direction parallel to the touch surface 10a of the touch pad 10, the at least one second loading board 12 can be conveniently located corresponding to the second portion 101 located on the periphery of the first portion 100, and the structure of the touch feedback module 1 is more compact and reasonable.

It can be understood that when the second loading plate 12 is a plurality of plates, the second loading plate 12 can be two, three, four, five or more plates, the number of the second loading plate 12 can be designed according to the actual use requirement, and the embodiment does not limit the specific number of the second loading plate 12.

Further, any two second carrier plates 12 of the plurality of second carrier plates 12 may be disposed at intervals along the direction Y, so that the structure of the touch feedback module 1 is more compact, as shown in b in fig. 6, where b in fig. 6 shows that the two second carrier plates 12 are disposed at intervals along the direction Y. It is understood that, in other embodiments, any two second carrier plates 12 may be spaced apart in a direction parallel to the touch surface 10a of the touch pad 10, as shown in fig. 7, and fig. 7 shows that the two second carrier plates 12 are two, and the two second carrier plates 12 are spaced apart in a direction parallel to the touch surface 10a of the touch pad 10.

Optionally, in the plurality of second bearing plates 12, each second bearing plate 12 is disposed corresponding to a different position of the second portion 101, and each second bearing plate 12 is disposed with the second piezoelectric motor 121 and the second transmission structure 120, so that each second bearing plate 12 does not interfere with each other when generating vibration, and the effect of performing touch feedback at the different positions of each second bearing plate 12 corresponding to the second portion 101 is easy to control, so as to improve the uniformity of the touch feedback effect at the different positions of the second portion 101. As shown in fig. 7, the second carrier plate 12 is exemplarily two, and the two second carrier plates 12 are respectively disposed corresponding to the second portions 101 along two sides of the direction parallel to the touch surface 10a of the touch pad 10.

In some embodiments, in order to improve the transmission efficiency of the vibration when the second piezoelectric motor 121 transmits the vibration to the second transmission structure 120, the second transmission structure 120 may be provided on one side of the second piezoelectric motor 121 in the deformation direction X2. The deformation direction X2 is a direction in which the second piezoelectric motor 121 can be extended or contracted by an electric field, and is, for example, the deformation direction X2 shown in fig. 6.

Optionally, the deformation direction X1 of the first piezoelectric motor 111 and the deformation direction X2 of the second piezoelectric motor 121 may be parallel or at an angle, as required by design. As shown in fig. 7, for example, to simplify the design, the deformation direction X1 of the first piezoelectric motor 111 is parallel to the deformation direction X2 of the second piezoelectric motor 121, and the deformation direction X1 and the deformation direction X2 are both parallel to the touch surface 10a of the touch pad 10.

Optionally, one end of the second transmitting structure 120 may be connected to the touch pad 100 by gluing, screwing, magnetic attraction, or fastening, and the other end of the second transmitting structure 120 may be connected to the second carrier 12 by gluing, screwing, magnetic attraction, or fastening, so as to fix the relative positions of the second transmitting structure 120 and the touch pad 10 and the second carrier 12, respectively, and prevent the second transmitting structure 120 from separating from the touch pad 10 or the second carrier 12, so as to ensure the normal transmission of the force or vibration between the touch pad 10 and the second carrier 12.

Alternatively, the second transmission structure 120 may be a block, a column, or the like, so that the second transmission structure 120 can be connected between the second carrier 12 and the touch pad 10 and can transmit force or vibration between the second carrier 12 and the touch pad 10.

Further, the second transmission structure 120 may be made of a material with certain elasticity and certain hardness, such as foam, rubber, and plastic, so as to transmit the force and/or vibration between the second carrier plate 12 and the touch pad 10, and provide a certain buffer for the transmission of the force between the second carrier plate 12 and the touch pad 10, so as to prevent the touch pad 10 from being damaged due to an excessive impact force applied to the touch pad 10 through the second transmission structure 120 during the use process.

In some embodiments, one or more second transmission structures 120 can be disposed on one second carrier plate 12. Optionally, the number of the second transmission structures 120 disposed on the second loading plate 12 is multiple, the plurality of second transmission structures 120 are disposed on the second loading plate 12 at intervals, and the plurality of second transmission structures 120 are connected to the second portion 101 respectively corresponding to different positions of the second portion 101, so that touch feedback can be performed through different positions of the second loading plate 12 corresponding to the second portion 101, and the structure of the touch feedback module 1 is more compact.

In some embodiments, the second piezoelectric motor 121 can be connected to the second carrier plate 12 by one or more of adhesive or snap connections, so that the second piezoelectric motor 121 and the second carrier plate 12 can be fixed together, the second piezoelectric motor 121 can drive the second carrier plate 12 to vibrate, and the second piezoelectric motor 121 can be prevented from being separated from the second carrier plate 12 during use, thereby preventing the touch feedback effect of the touch feedback module 1 from being affected.

Optionally, the second piezoelectric motor 121 may be disposed on a side of the second carrier 12 facing the touch pad 10 and/or a side of the second carrier 12 facing away from the touch pad 10, and regarding the disposed position of the second piezoelectric motor 121 on the second carrier 12, reference may be made to the disposed position of the first piezoelectric motor 121 on the first carrier 1, which is not described herein again.

As can be seen from the foregoing, the number of the second transmission structures 120 disposed on one second carrier plate 12 can be one or more. When there is one second transmission structure 120 disposed on one second carrier plate 12, the second piezoelectric motor 121 is disposed close to the one second transmission structure 120, so that the vibration transmission path between the second piezoelectric motor 121 and the second transmission structure 120 is shortest, the vibration transmission loss is minimum, and the touch feedback effect of the touch feedback module 1 is best.

When there are a plurality of second transmission structures 120 disposed on one second carrier plate 12, optionally, the second piezoelectric motor 121 is disposed at least close to one second transmission structure 120, so that the vibration transmission path between the at least one second transmission structure 120 and the second piezoelectric motor 121 is shortest and the vibration transmission loss is smallest, and the touch feedback effect of the second portion 101 of the touch pad 10 corresponding to the at least one second transmission structure 120 is the best, as shown in fig. 8, fig. 8 shows that the second carrier plate 12 is one, the one second carrier plate 12 is H-shaped, the number of the second transmission structures 120 is six, along the deformation direction X2 of the second piezoelectric motor 121, of the six second transmission structures 120, three second transmission structures 120 are disposed at intervals on one side of the second carrier plate 12, the remaining three second transmission structures 120 are disposed at intervals on the other side of the second carrier plate 12, and the number of the second piezoelectric motors 121 is two, of the two second piezoelectric motors 121, one second piezoelectric motor 121 is disposed close to one second transmission structure 120 of the three second transmission structures 120 disposed on one side of the second carrier 12, and the remaining one second piezoelectric motor 121 is disposed close to one second transmission structure 120 of the remaining three second transmission structures 120 disposed on the other side of the second carrier 12, wherein for convenience of observation, the first carrier 11, the first transmission structure 110, and the first piezoelectric motor 111 are omitted in fig. 8, and the touch panel 10 is illustrated by thick lines to distinguish the touch panel 10 from other structures.

Preferably, the number of the second piezoelectric motors 121 is the same as that of the second transmission structures 120, and each of the second piezoelectric motors 121 is correspondingly disposed close to one of the second transmission structures 120, and at this time, the touch feedback effect of the second portion 101 of the touch pad 10 corresponding to each of the second transmission structures 120 is the best. For example, as shown in fig. 4, two second transmission structures 120 are disposed on one second carrier plate 12, two second transmission structures 120 are respectively located on two sides of the second piezoelectric motor 121 along the deformation direction X2 of the second piezoelectric motor 121, two second piezoelectric motors 121 are respectively close to the two second transmission structures 120, and the two second piezoelectric motors 121 are disposed between the two second transmission structures 120 at intervals.

Referring to fig. 4 and 9, in some embodiments, the touch feedback module 1 further includes a first supporting base 112, the first supporting base 112 is disposed on a side of the first loading board 11 away from the touch pad 10, the first supporting base 112 can be connected to the first loading board 11 by gluing, a threaded structure, magnetic attraction, or a buckle, and the first supporting base 112 is used to provide a supporting point for the first loading board 11, so as to fix a position of a portion of the first loading board 11 connected to the first supporting base 112, and enable the first loading board 11 to vibrate around the portion connected to the first supporting base 112.

For example, the first supporting seat 112 is disposed at the center of the first loading plate 11, so that each portion of the first loading plate 11 can vibrate around the center of the first loading plate 11, and the structural balance is good. It is understood that in other examples, the first supporting seat 112 may be disposed at an end of the first loading plate 11 facing away from the first transmission structure 110.

In an alternative example, as shown in fig. 4, the first supporting seat 112 is connected to the second loading plate 12, that is, one end of the first supporting seat 112 is connected to a side of the first loading plate 11 away from the touch pad 10, and the other end of the first supporting seat 112 is connected to a side of the second loading plate 12 facing the touch pad 10, so that the first supporting seat 112 is fixed by the second loading plate 12 while the first loading plate 11 is fixed, and the structure of the touch feedback module 1 is more compact.

In another alternative example, as shown in fig. 9, a distance is provided between the first supporting seat 112 and the second loading plate 12, so that a side surface of the second loading plate 12 facing the first supporting seat 112 can be used for disposing the second piezoelectric motor 121, in other words, a mountable area of the second piezoelectric motor 121 is made larger, so that the second piezoelectric motor 121 which is longer in the deformation direction X1 can be used to increase the vibration generated by the second piezoelectric motor 121, thereby increasing the feedback effect of the second portion 101. It can be understood that the touch feedback module 1 can be applied to a touch device, and one end of the first supporting base 112 away from the first loading board 11 can be fixedly connected to the touch device, so that when the touch pad 10 moves relative to the touch device under the operation of a user, the relative position between the first supporting base 112 and the touch device remains unchanged, thereby preventing the first supporting base 112 from moving along with the touch pad 10 and the first loading board 11, so that the first supporting base 112 can provide a fulcrum for the first loading board 11 and the touch pad 10, and meanwhile, preventing the first supporting base 112 from moving along with the touch pad 10 to press on the second loading board 12 and the second piezoelectric motor 121, which results in the second piezoelectric motor 121 being damaged.

Referring to fig. 4 and fig. 9, in some embodiments, the second carrier 12 may be partially and fixedly connected to the touch device to provide a supporting point for the second carrier 12 through the touch device, or the touch feedback module 1 may further include a second supporting seat 122, the second supporting seat 122 is disposed on a side of the second carrier 12 away from the touch pad 10, the second supporting seat 122 may be connected to the second carrier 12 through gluing, a threaded structure, magnetic attraction, or fastening, and the like, the second supporting seat 122 is used to provide a supporting point for the second carrier 12 to fix a position of a portion of the second carrier 12 connected to the second supporting seat 122, and the second carrier 12 can vibrate around the portion connected to the second supporting seat 122.

Illustratively, the second supporting seat 122 is disposed at the center of the second supporting plate 12, so that each portion of the second supporting plate 12 can vibrate at the center of the second supporting plate 12, and the structural balance is good. It is understood that, in other examples, the second supporting seat 122 can be disposed at an end of the second loading plate 12 away from the second transmitting structure 120, in which case, one second supporting seat 122 can be correspondingly connected to one second loading plate 12, or one second supporting seat 122 can be correspondingly connected to a plurality of second loading plates 12, so as to make the structure of the touch feedback module 1 more compact.

It can be understood that, when the touch feedback module 1 is applied to a touch device, the second supporting seat 122 can be connected to the touch device by gluing, screwing, magnetic attraction or fastening, so as to fix the touch feedback module 1 to the touch device, thereby preventing the touch feedback module 1 from shifting or falling off during the process of using the touch device by a user.

In some embodiments, in order to make the first carrier plate 11 and the second carrier plate 12 less prone to collide during vibration and make the thickness of the entire touch feedback module 1 thinner so as to achieve a light and thin design of the touch feedback module 1, the thickness h1 of the first support base 112 is 0.2mm to 4mm along the direction Y, for example, the thickness h1 of the first support base 112 may be 0.2mm, 0.5mm, 0.8mm, 1.0mm, 1.5mm, 2.0mm, 2.5mm, 3.0mm, 3.5mm, or 4.0 mm; the thickness h2 of the second supporting seat is 0.2mm-4mm, for example, the thickness h2 of the second supporting seat is 0.2mm, 0.5mm, 0.8mm, 1.0mm, 1.5mm, 2.0mm, 2.5mm, 3.0mm, 3.5mm or 4.0mm, etc.; alternatively, the sum of the thickness h1 of the first support seat 112 and the thickness h2 of the second support seat 122 is 0.2mm to 5mm, for example, the sum of the thickness h1 of the first support seat 112 and the thickness h2 of the second support seat 122 may be: 0.2mm, 0.5mm, 0.8mm, 1.0mm, 1.5mm, 2.0mm, 2.5mm, 3.0mm, 3.54.0 mm, 4.5mm, or 5.0mm, and the like.

In some embodiments, the touch feedback module 1 further includes a control unit (not shown), the control unit is electrically connected to the first piezoelectric motor 111 and the second piezoelectric motor 121, and the control unit is configured to control the piezoelectric motors to vibrate when the user presses the touch surface 10a of the touch pad 10, and to control the piezoelectric motors to stop vibrating when the user stops pressing the touch surface 10a of the touch pad 10 (for example, when the touch pad 10 is slid or the touch pad 10 is not operated). Alternatively, the control Unit may be an electronic component capable of receiving and outputting an electrical signal and analyzing the electrical signal, such as an MCU (micro controller Unit).

Next, the process of the touch feedback module 1 for implementing touch feedback will be described in detail with reference to the drawings.

Referring to fig. 4 and 10 together, fig. 4 is a cross-sectional view of the touch feedback module 1 when the first carrier 11 and the second carrier 12 are not deformed, fig. 10 is another cross-sectional view of the touch feedback module 1 when the first carrier 11 and the second carrier 12 are deformed, and when a user presses the touch surface 10a of the touch pad 10, the touch pad 10 is deformed and displaced by the pressing force of the user. Under the condition that the position pressed by the user is the first portion 100, the first transmission structure 110 moves along the direction Y under the action of the deformation and displacement of the touch pad 10, so as to drive a portion of the first loading plate 11 connected to the first transmission structure 110 to move, so that the first loading plate 11 deforms around the portion connected to the first supporting base 112, and drives the first piezoelectric motor 111 attached to the first loading plate 11 to deform. When the first piezoelectric motor 111 deforms, due to the piezoelectric effect, the first piezoelectric motor 111 generates an electrical signal (e.g., a voltage signal or a current signal) having a certain magnitude in relation to the deformation of the first piezoelectric motor 111 itself. The control unit is used for receiving the electrical signal, taking the electrical signal generated when the first piezoelectric motor 111 deforms as a voltage signal as an example, the control unit stores a preset voltage value, when the voltage value carried by the received voltage signal is smaller than the preset voltage value, the control unit determines that the user does not press the touch pad 10, the control unit does not supply an electric signal to the first piezoelectric motor 111, the first piezoelectric motor 111 does not generate vibration, when the voltage value carried by the received voltage signal is greater than the preset voltage value, the control unit determines that the user presses the touch pad 10, the control unit sends an electric signal to the first piezoelectric motor 111 to cause the first piezoelectric motor 111 to vibrate, therefore, the first carrier 11 vibrates, so that the first transmission structure 110 vibrates along the direction Y to drive the touch pad 10 to vibrate along the direction Y, thereby implementing vibration feedback.

Similarly, when the position pressed by the user is the second portion 101, the second transmission structure 120 moves along the direction Y under the action of the deformation and displacement of the touch pad 10, so as to drive the portion of the second carrier 12 connected to the second transmission structure 120 to move, so that the second carrier 12 deforms around the portion connected to the second support seat 122, and drives the second piezoelectric motor 121 attached to the second carrier 12 to deform. When the second piezoelectric motor 121 deforms, due to the piezoelectric effect, the second piezoelectric motor 121 generates an electrical signal (e.g., a voltage signal or a current signal) having a certain relationship with the deformation generated by the second piezoelectric motor 121 itself. The control unit is configured to receive the electrical signal, and take an electrical signal generated when the second piezoelectric motor 121 deforms as a voltage signal as an example. And the control unit stores a preset voltage value, when the voltage value carried by the received voltage signal is smaller than the preset voltage value, the control unit determines that the user does not press the touch pad 10, the control unit does not transmit an electric signal to the second piezoelectric motor 121, the second piezoelectric motor 121 does not vibrate, when the voltage value carried by the received voltage signal is greater than the preset voltage value, the control unit determines that the user presses the touch pad 10, and the control unit transmits an electric signal to the second piezoelectric motor 121 to vibrate the second piezoelectric motor 121, so that the second bearing plate 12 vibrates, the second transmission structure 120 vibrates along the direction Y, the touch pad 10 is driven to vibrate along the direction Y, and vibration feedback is achieved.

In a second aspect, please refer to fig. 11, which also discloses a touch device 20 including the touch feedback module 1 according to the first aspect. Specifically, the touch device 20 may include, but is not limited to, a finished touch pad 10, a tablet, a digital screen, a mobile phone, a laptop computer, a tablet computer, a vehicle-mounted touch display screen, a touch screen, and the like.

Referring to fig. 2 and fig. 11, in an actual configuration, the touch surface 10a of the touch pad 10 included in the touch feedback module 1 forms a partial surface of the touch device 20, and the first carrier 11, the first piezoelectric motor 111, the first transmission structure 110, the second carrier 12, the second piezoelectric motor 121, and the second transmission structure 120 included in the touch feedback module 1 are all disposed inside the touch device 20.

The electronic device disclosed in the second aspect of the embodiment of the present application can have a relatively uniform touch feedback effect of the touch pad 10 of the electronic device by setting the touch feedback module 1, and the user experience is good.

The touch feedback module and the touch device disclosed in the embodiments of the present invention are described in detail above, and the principles and embodiments of the present invention are explained herein by using specific examples, and the descriptions of the above embodiments are only used to help understanding the touch feedback module and the touch device and their core ideas; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the specific implementation and application scope, and in summary, the content of the present specification should not be understood as the limitation of the present invention.

Claims

1. A touch feedback module, comprising:

the first piezoelectric motor is arranged on the first bearing plate;

and the second piezoelectric motor is arranged on the second bearing plate.

2. The touch feedback module according to claim 1, wherein the number of the second loading boards is multiple, and the multiple second loading boards are all located on a side of the first loading board facing the touch pad, or the multiple second loading boards are all located on a side of the first loading board facing away from the touch pad, or, in the multiple second loading boards, a part of the second loading boards are located on a side of the first loading board facing the touch pad, and the remaining part of the second loading boards are located on a side of the first loading board facing away from the touch pad.

3. The touch feedback module according to claim 1, wherein when the second carrier plate is a single plate, at least a portion of the projection of the first carrier plate is located on the second carrier plate along a direction perpendicular to the touch surface of the touch pad;

when the number of the second bearing plates is multiple, at least part of the projection of the first bearing plate is positioned on at least one of the second bearing plates along the direction perpendicular to the touch surface of the touch control plate.

4. The touch feedback module according to claim 3, wherein when the second carrier plate is a single plate, a projection of the first carrier plate is located in a middle portion of the second carrier plate along a direction perpendicular to the touch surface of the touch pad; alternatively, the first and second electrodes may be,

when the number of the second bearing plates is multiple, the projection of the first bearing plate is positioned in the middle of at least one second bearing plate along the direction perpendicular to the touch surface of the touch control plate, and the second transmission structure is arranged at the position of the second bearing plate corresponding to the second part.

5. The touch feedback module of claim 1, wherein when the number of the second carrier plates is multiple, each of the second carrier plates is disposed at a different position corresponding to the second portion, and the second piezoelectric motor and the second transmission structure are disposed on each of the second carrier plates.

6. The touch feedback module according to any one of claims 1-5, wherein the first piezoelectric motor and the first transmission structure are located on the same side or different sides of the first carrier plate, and the second piezoelectric motor and the second transmission structure are located on the same side or different sides of the second carrier plate.

7. The touch feedback module according to claim 6, wherein the first piezoelectric motor is disposed in the middle of the first carrier plate, the first transmission structures are disposed at intervals, and each of the first transmission structures is disposed at an outer periphery of the first piezoelectric motor.

8. The touch feedback module according to any of claims 1-5, further comprising a first supporting seat and a second supporting seat, wherein the first supporting seat is disposed on a side of the first carrier plate away from the touch pad, and the second supporting seat is disposed on a side of the second carrier plate away from the touch pad.

9. The touch feedback module according to any one of claims 1-5, wherein the number of the second portions is two, and the two second portions are respectively connected to two sides of the first portion.

10. A touch device comprising the touch feedback module of any one of claims 1-9.