CN214376375U

CN214376375U - Touch feedback assembly and electronic equipment

Info

Publication number: CN214376375U
Application number: CN202120217865.9U
Authority: CN
Inventors: 冯昀; 郭宏伟; 吴宜青
Original assignee: Jiangxi Oumaisi Microelectronics Co Ltd
Current assignee: Jiangxi Oumaisi Microelectronics Co Ltd
Priority date: 2021-01-26
Filing date: 2021-01-26
Publication date: 2021-10-08
Anticipated expiration: 2031-01-26

Abstract

The application discloses touch-control feedback subassembly and electronic equipment, touch-control feedback subassembly includes the casing, the loading board, piezoelectric element and touch-control board, the casing is equipped with mounting groove and first locating part, at least part first locating part extends to the region of the corresponding touch-control board of mounting groove, the loading board is located the casing and covers and locate the mounting groove, the loading board is connected with the casing, piezoelectric element locates the loading board, the touch-control board is located the mounting groove, the touch-control board is equipped with the second locating part, the second locating part corresponds the setting with first locating part, the second locating part is used for moving under the exogenic action to with first locating part butt, in order to restrict the motion displacement of touch-control board relative to the loading board. This application can restrict the motion displacement of touch-control board along moving towards the loading board effectively through the cooperation design of first locating part and second locating part, reduces the motion displacement of touch-control board to prevent pressing displacement of touch-control board too big, be favorable to guaranteeing the pressure perception effect of touch-control board, and then can effectively improve user and use experience.

Description

Touch feedback assembly and electronic equipment

Technical Field

The utility model relates to a touch-control technical field especially relates to a touch-control feedback subassembly and electronic equipment.

Background

In the related art, in order to implement a touch function, a flat touch electronic device (e.g., a tablet computer, a notebook computer, a mobile phone, a vehicle-mounted device, or a smart watch) is generally provided with a touch pad having a touch feedback function.

However, the touch pad of most of the electronic devices with planar touch control is connected to the loading plate through the transmission member, so that the distance between the touch pad and the loading plate is large, and in the actual use process, the touch pad and the loading plate form a large pressing fall due to pressing, so that the touch pad vibrates and drags, the pressure sensing effect of the touch pad is affected, the use of the touch pad is affected, and the use experience of a user is affected.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model discloses touch-control feedback subassembly and electronic equipment can reduce the displacement of pressing of touch-control board, has improved user's use effectively and has experienced.

In order to achieve the above object, in a first aspect, the present invention discloses a touch feedback assembly, the touch feedback assembly includes:

the device comprises a shell, a first fixing piece and a second fixing piece, wherein the shell is provided with a through mounting groove;

the touch pad is accommodated in the mounting groove and provided with a touch surface and a first surface which are opposite;

the bearing plate is positioned on one side of the machine shell, which is far away from the touch control surface, covers the mounting groove, and is provided with a second surface and a third surface which are opposite, and the second surface is connected with the machine shell;

a piezoelectric element provided on the second surface and/or the third surface; and

the transmission piece is positioned between the bearing plate and the touch pad, and the first surface is connected with the second surface through the transmission piece;

a first limiting part is arranged on one side, away from the touch surface, of the casing, at least part of the first limiting part extends into an area, corresponding to the touch pad, of the mounting groove, a second limiting part is arranged on the first surface, the second limiting part is arranged corresponding to the first limiting part, and the second limiting part is used for moving to abut against the first limiting part under the action of external force so as to limit the movement displacement of the touch pad relative to the second surface, so that the pressing displacement of the touch pad can be reduced, the pressing displacement of the touch pad is prevented from being too large, the pressing sensitivity of the touch pad is improved, the pressure sensing effect of the touch pad is ensured, and the use experience of a user can be effectively improved; meanwhile, the phenomenon that the touch pad deforms too much due to the fact that the touch pad is pressed to move too much can be avoided, so that the situation that circuits and elements on the touch pad are damaged due to the fact that the touch pad deforms too much can be avoided, and the circuits and the elements on the touch pad are protected from being damaged.

As an optional implementation manner, in an embodiment of the first aspect of the present invention, the first limiting member is any one of a limiting strip, a limiting plate and a limiting block disposed on the casing, or the first limiting member includes a connecting portion and an abutting portion, the connecting portion is connected to the casing, the abutting portion is connected to the connecting portion, and at least a portion of the abutting portion extends to a region of the mounting groove corresponding to the touch pad, and the second limiting member is configured to move under an external force to abut against the abutting portion to limit a movement displacement of the touch pad relative to the second surface. The first locating part comprises a connecting part connected with the casing and an abutting part used for limiting the motion displacement of the second locating part, and therefore the first locating part can have the connecting and limiting effects at the same time, and does not need to be additionally fixed on the casing by means of other fixing parts, so that the occupation of the internal space of the touch feedback assembly can be reduced, the quality of the touch feedback assembly is reduced, and the miniaturization and light-weight design of the touch feedback assembly are facilitated.

As an optional implementation manner, in an embodiment of the first aspect of the present invention, when the first limiting member is any one of a limiting strip, a limiting plate and a limiting block disposed on the casing, the first limiting member and the casing are integrally formed, so that the first limiting member is integrally formed on the casing, which can simplify the installation process and improve the installation efficiency; or

The first limiting piece is in threaded connection or bonded with the shell. The first limiting part is connected to the casing in a bonding mode, the connection mode is simple, the bonding strength is high, the cost is low, the overall weight of the installed casing is light, and light design and adoption of the touch feedback assembly are facilitated; and the assembly mode of screw joint is used, the assembly process is simple, and the first limiting piece is convenient to install on the machine shell.

As an optional implementation manner, in an embodiment of the first aspect of the present invention, the first locating part includes a screw rod and a nut that are connected to each other, the screw rod is connected to the housing, at least a portion of the nut extends to the corresponding mounting groove in the region of the touch pad, the second locating part is configured to move under an external force to abut against the nut to limit the movement displacement of the touch pad relative to the second surface, so that the first locating part can have the connecting and limiting functions at the same time, and the first locating part is not required to be additionally fixed to the housing by means of other fixing parts, thereby reducing the occupation of the inner space of the touch feedback assembly, reducing the quality of the touch feedback assembly, and facilitating the miniaturization and lightweight design of the touch feedback assembly.

As an optional implementation manner, in an embodiment of the first aspect of the present invention, the first limiting member further includes a gasket, the gasket is disposed through the screw, at least a portion of the gasket extends into a region of the mounting groove corresponding to the touch pad, and the second limiting member is configured to move to abut against the gasket under the action of an external force, so as to limit a movement displacement of the touch pad relative to the second surface.

As an optional implementation manner, in an embodiment of the first aspect of the present invention, the number of the first position-limiting members is plural, the plural first position-limiting members are arranged on the casing at intervals along a circumferential direction of the casing, the number of the second position-limiting members is plural, and the plural second position-limiting members are respectively arranged in one-to-one correspondence with the plural first position-limiting members; or, the number of the first limiting parts is one, the first limiting parts are annular structures arranged around a circle along the circumferential direction of the casing, the number of the second limiting parts is one, and the second limiting parts are annular structures arranged around a circle along the circumferential direction of the touch pad. The plurality of first limiting parts or the annular first limiting part is arranged, so that the movement distance of each position of the part, corresponding to the periphery of the piezoelectric element, of the touch pad relative to the first side surface is controlled within a proper range, and the pressing sensitivity of each position of the part, corresponding to the periphery of the piezoelectric element, of the touch pad is improved.

As an optional implementation manner, in an embodiment of the first aspect of the present invention, a portion of the first limiting member extending to the mounting groove is located between the touch pad and the second surface, or the bearing plate is provided with an avoiding groove, and a portion of the first limiting member extending to the mounting groove is located in the avoiding groove. The loading board is provided with dodges the groove in order to dodge first locating part, can be for the second locating part be used for under the exogenic action move to with first locating part butt provides possible the quality of loading board can alleviate be favorable to making the touch-control feedback subassembly accords with the lightweight design.

As an optional implementation manner, in the embodiment of the first aspect of the present invention, the loading board is provided with at least one opening, the opening at least runs through the second surface and one of the third surface, which can reduce the strength of the loading board and improve the degree of deformation of the loading board, so that the piezoelectric element of the loading board vibrates more easily, and the piezoelectric element vibrates to drive the touch panel to vibrate.

As an optional implementation manner, in an embodiment of the first aspect of the present invention, in a direction perpendicular to the second surface, the height of the transmission member is greater than the height of the piezoelectric element, so as to have a distance between the touch pad and the piezoelectric element, that is, the touch pad does not directly contact with the piezoelectric element, which is beneficial to keeping the vibration intensity of each place on the touch pad substantially the same, improving the vibration uniformity of the touch pad, and ensuring the vibration effect of the touch pad.

In a second aspect, the present invention discloses an electronic device having a touch feedback assembly as described in the first aspect above. It can be understood that the electronic device includes the touch feedback component of the first aspect, and the electronic device has the beneficial effects of the touch feedback component of the first aspect.

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 subassembly and electronic equipment, through being equipped with first locating part at the casing, and be equipped with the second locating part in the touch-control board one side towards the loading board, and first locating part extends to and corresponds the setting with the second locating part in the mounting groove, thereby can utilize the cooperation design of first locating part and second locating part, can satisfy the touch-control board vibration from top to bottom in order to realize the vibration feedback effect, effectively restricted the touch-control board along the motion displacement (pressing displacement) of moving towards the loading board, can reduce the pressing displacement of touch-control board, in order to prevent that the pressing displacement of touch-control board is too big, on the one hand, be favorable to improving the pressing sensitivity of touch-control board, ensure the pressure perception effect of touch-control board, and then can effectively improve user experience; on the other hand, the phenomenon that the touch pad deforms too much due to the fact that the pressing displacement of the touch pad is too large can be avoided, and therefore the phenomenon that circuits and elements on the touch pad are damaged due to the fact that the touch pad deforms too much can be avoided, and the functions of protecting the circuits and the elements on the touch pad are achieved.

In addition, because the first limiting part and the second limiting part in the application are mainly located in the original space between the touch pad and the bearing plate or the originally occupied space of the bearing plate, when the size of the fit clearance between the touch pad and the bearing plate is adjusted by changing the thickness, the position and the like of the first limiting part and the second limiting part, the influence of the appearance of the electronic equipment is small, the touch pad is suitable for various electronic equipment, and the applicability is good.

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 front view of a touch feedback assembly disclosed in an embodiment of the present invention;

FIG. 2 is a sectional view taken in the direction of a-a in FIG. 1;

FIG. 3 is an exploded view of FIG. 2;

fig. 4 is a schematic structural diagram of a touch feedback module according to an embodiment of the present invention;

FIG. 5 is an exploded view of FIG. 4;

fig. 6 is a schematic structural diagram of a first limiting member according to an embodiment of the present invention;

fig. 7 is a first rear view of a touch feedback assembly according to an embodiment of the present invention;

FIG. 8 is a sectional view taken along the line b-b in FIG. 7;

fig. 9 is a second rear view of a touch feedback assembly according to an embodiment of the present invention;

FIG. 10 is a sectional view taken in the direction of c-c in FIG. 9;

fig. 11 is a third rear view of a touch feedback assembly according to an embodiment of the present invention;

fig. 12 is a sectional view taken in the direction d-d of fig. 11.

Icon: 1. a touch feedback component; 11. a housing; 111. mounting grooves; 112. a first limit piece; 1121. a connecting portion; 1122. an abutting portion; 113. a threaded hole; 12. a carrier plate; 121. a second face; 122. a third surface; 123. an avoidance groove; 124. a through hole; 125. an opening; 13. a piezoelectric element; 14. a touch pad; 141. a second limiting member; 15. a locking member; 16. a transmission member.

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.

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

The embodiment of the utility model discloses electronic equipment, electronic equipment can be but not be restricted to touch-control equipment such as panel computer, notebook computer, cell-phone, intelligent wrist-watch, intelligent bracelet mobile unit or industrial control equipment. As shown in fig. 1, fig. 1 is a schematic structural diagram of a touch feedback device according to an embodiment of the present disclosure, and the electronic device has the touch feedback device 1 to have a touch feedback function.

Referring to fig. 2 and 3, fig. 2 is a cross-sectional view of the touch feedback device in fig. 1 in a-a direction, and fig. 3 is an exploded structural schematic view of the touch feedback device according to an embodiment of the present disclosure. Touch-control feedback subassembly 1 includes casing 11, loading board 12, piezoelectric element 13 and touch-control board 14, casing 11 has seted up the mounting groove 111 that runs through, touch-control board 14 holds in mounting groove 111, and touch-control board 14 has relative touch-control face and first face, loading board 12 is located casing 11 and keeps away from one side of touch-control face and covers and locate mounting groove 111, and loading board 12 has relative second face 121 and third face 122, second face 121 is connected with casing 11, second face 121 and/or third face 122 are equipped with piezoelectric element 13 to drive touch-control board 14 when utilizing piezoelectric element 13 to vibrate, reach the effect of realizing the touch-control feedback function of touch-control board 14.

Further, the housing 11 is provided with a first limiting member 112, at least a portion of the first limiting member 112 extends into the region of the mounting groove 111 corresponding to the touch pad 14, a first surface of the touch pad 14 is provided with a second limiting member 141, the second limiting member 141 is provided corresponding to the first limiting member 112, so that the second limiting member 141 can be used to move to abut against the first limiting member 112 under the action of external force to limit the movement displacement of the touch pad 14 relative to the second surface 121, for example, when a user presses the touch pad 14 with a finger, the second limiting member 141 will move to abut against the first limiting member 112 along the direction toward the supporting plate 12 under the driving of the touch pad 14, and because of the existence of the first limiting member 112 and the second limiting member 141, the movement displacement of the touch pad 14 relative to the second surface 121 can be limited, so as to avoid a large pressing drop between the touch pad 14 and the housing 11, avoiding the touch pad 14 from shaking and dragging.

For convenience of description, in fig. 2, an up-down direction is set, the up direction is a direction indicated by an upward arrow in fig. 2, and the down direction is a direction indicated by a downward arrow in fig. 2, then the touch surface is an upper surface of the touch pad 14, and the first surface is a lower surface of the touch pad 14; the second surface 121 is the upper surface of the loading plate 12, and the third surface 122 is the lower surface of the loading plate 12. The carrier 12 is located on a side of the housing 11 away from the touch surface, which means that the carrier 12 is located under the touch pad 14. It is to be understood that the above-described orientations are merely exemplary for ease of description and understanding and do not limit the scope of the present embodiments.

Extending at least a portion of the first limiting member 112 to the region of the mounting groove 111 corresponding to the touch pad 14 can be understood as: along the projection direction from the top to the bottom, the projection area of the touch pad 14 covers at least a portion of the projection area of the first position-limiting member 112.

As mentioned above, by providing the first position-limiting member 112 on the housing 11 and the second position-limiting member 141 on the first surface of the touch pad 14, and the first limiting member 112 extends into the mounting groove 111 and is disposed corresponding to the second limiting member 141, at this time, the first limiting member 112 and the second limiting member 141 are located on the periphery of the touch pad 14, therefore, the movement displacement (pressing displacement) of the periphery of the touch pad 14 moving downward under the pressing action can be limited by the cooperation of the first limiting member 112 and the second limiting member 141, that is, by adopting the technical solution of the present application, on the one hand, the pressing displacement of the touch pad 14 can be reduced to avoid the vibration induced dragging at the position due to the excessive pressing displacement of the periphery of the touch pad 14, therefore, the pressing sensitivity of the touch pad 14 is improved, the pressure sensing effect of the touch pad 14 is ensured, and the use experience of a user can be effectively improved; on the other hand, too large deformation of the touch pad 14 due to too large pressing displacement of the touch pad 14 can be avoided, so that damage to circuits and elements on the touch pad 14 due to too large deformation of the touch pad 14 can be avoided, and the functions of protecting the circuits and elements on the touch pad 14 are achieved.

It can be understood that, a limiting groove is directly formed on the housing 11, and a limiting portion is disposed on the touch pad 14, and the design of matching the limiting groove and the limiting portion is utilized to limit the pressing displacement of the touch pad 14, but in the above manner, although the problem of too large pressing displacement of the touch pad 14 can be solved, due to the fact that the limiting groove needs to be formed on the housing 11, the structural strength of the housing 11 may be affected, so that the housing 11 deforms in a vibrating manner, that is, the piezoelectric element 13 can transmit the vibration to the housing 11 through the bearing plate 12 during the vibration, thereby easily vibrating the housing 11, increasing other redundant vibrations except the touch pad 14, and affecting the pressure sensing effect of the touch pad 14. That is, compared to the above-mentioned manner, in the present application, by disposing the first limiting member 112 on the casing 11 and disposing the second limiting member 141 on the surface of the touch pad 14 facing the bearing plate 12, there is no need to provide a limiting groove on the casing 11, and the structural strength of the casing 11 is not affected, so that the problem that the casing 11 is prone to vibrate due to the provision of the limiting groove on the casing 11 is solved, and other redundant vibrations except the touch pad 14 are reduced.

It should be noted that the projection of the touch pad 14 on the carrier 12 of the present application should cover the projection of the piezoelectric element 13 on the carrier 12, that is, there is a gap between the piezoelectric element 13 and the periphery of the touch pad 14, and the second limiting member 141 may be located in the gap between the piezoelectric element 13 and the periphery of the touch pad 14.

Further, the piezoelectric element 13 may have a vibration function, or a sensing function, or both of the vibration function and the sensing function. Illustratively, the piezoelectric element 13 of the present application may be a component made of a piezoelectric material, such as a piezoelectric ceramic sheet, a polyvinylidene fluoride piezoelectric film, or a piezoelectric motor, and the piezoelectric element 13 may be connected with an electric current through a conductive member (e.g., a flexible circuit board, a wire, etc.). When the piezoelectric element 13 is energized with an electric current, the piezoelectric element 13 may generate vibration by using the piezoelectric effect of the piezoelectric material, and transmit the vibration effect to the touch pad 14, so as to realize the vibration effect. The second limiting member 141 may be a limiting strip, a limiting plate, a limiting block, or the like.

In an alternative embodiment, a portion of the first limiting member 112 extending into the mounting groove 111 may be located between the first surface and the second surface 121 of the touch pad 14, on one hand, it is possible for the second limiting member 141 to move into abutment with the first limiting member 112 under the action of an external force; on the other hand, since the first limiting member 112 and the second limiting member 141 are mainly located in the space between the touch pad 14 and the carrier 12, and mainly occupy the original space between the touch pad 14 and the carrier 12, when the size of the fit gap between the first limiting member 112 and the second limiting member 141 is adjusted by changing the thickness, the position, and the like of the two members, the influence of the external shape of the electronic device is small, and the electronic device is suitable for various electronic devices, and has good applicability.

In another alternative embodiment, as shown in fig. 4 and 5, fig. 4 is a perspective view of a touch feedback device according to an embodiment of the present disclosure, and fig. 5 is an exploded structural schematic diagram of the touch feedback device in fig. 4. The bearing plate 12 is provided with an avoiding groove 123, and a portion of the first limiting member 112 extending into the mounting groove 111 is located in the avoiding groove 123. By providing the avoiding groove 123 in the bearing plate 12 to avoid the first limiting member 112, the weight of the bearing plate 12 can be reduced while providing a possibility that the second limiting member 141 moves to abut against the first limiting member 112 under the action of an external force, which is beneficial to making the touch feedback assembly 1 conform to the lightweight design; moreover, since the first limiting member 112 is located in the avoiding groove 123 of the loading plate 12, the loading plate 12 mainly occupies the originally occupied space, and when the size of the fit clearance between the first limiting member 112 and the second limiting member 141 is adjusted by changing the thickness, the position, and the like of the two members, the influence of the appearance of the electronic device is small, the electronic device can be applied to various electronic devices, and the applicability is good.

In some embodiments, the housing 11 and the supporting plate 12 can be mounted by a bolt, for example, the touch feedback assembly 1 further includes a locking member 15, a threaded hole 113 is formed on a side of the housing 11 close to the second surface 121, a through hole 124 is formed on the supporting plate 12 corresponding to the threaded hole 113, and the locking member 15 passes through the through hole 124 and is in threaded connection with the threaded hole 113, so as to connect the housing 11 and the supporting plate 12. The locking member 15 may be a bolt or a screw.

It is understood that, in other embodiments, the mounting manner of the housing 11 and the supporting plate 12 can also be a snap connection manner or a magnetic connection manner. For example, a first magnetic member may be disposed on the carrier 12, and correspondingly, a second magnetic member may be disposed on the housing 11 at a position corresponding to the first magnetic member, so as to achieve the connection between the carrier 12 and the housing 11 by using the attraction connection between the two. One of the first magnetic member and the second magnetic member is a magnet, and the other of the first magnetic member and the second magnetic member is a magnet or a metal member.

In some embodiments, the loading plate 12 is provided with at least one opening 125, the opening 125 is at least communicated with one of the second face 121 and the third face 122, for example, the opening 125 can be a plurality of, for example, three, as shown in fig. 3, three openings 125 can be communicated with the second face 121 and the third face 122, and the three openings 125 are spaced apart from each other on the loading plate 12. Due to the design, the strength of the bearing plate 12 can be reduced, the stress deformability of the bearing plate 12 can be improved, the piezoelectric element 13 arranged on the bearing plate 12 can vibrate more easily, the piezoelectric element 13 can drive the touch pad 14 to vibrate when vibrating, and the pressing sensitivity of the touch pad 14 can be indirectly improved; moreover, the opening 125 can also weaken the vibration of the housing 11 caused by the carrier 12, and weaken the vibration of the housing except for the touch pad 14.

In some embodiments, the number of the first limiting members 112 may be one or more. For example, the first position-limiting member 112 may be one, and then the first position-limiting member 112 is an annular structure disposed around the circumference of the casing 11, the second position-limiting member 141 corresponds to one, and the second position-limiting member 141 is an annular structure disposed around the circumference of the touch pad 14, so that the movement displacement of each position of the touch pad 14 corresponding to the second position-limiting member 141 relative to the second surface 121 is favorably controlled within a relatively suitable range, and the pressing sensitivity of each position of the circumference of the touch pad 14 is favorably improved. It is understood that, in other embodiments, the first limiting member 112 may be an annular structure disposed around the circumference of the casing 11, and the second limiting member 141 may be correspondingly plural, and the plural second limiting members 141 are arranged at intervals along the circumference of the bearing plate 12.

For another example, as shown in fig. 5, the number of the first position-limiting members 112 may be multiple, the multiple first position-limiting members 112 are arranged on the housing 11 at intervals along the circumferential direction of the housing 11, the number of the second position-limiting members 141 is multiple, the multiple second position-limiting members 141 are respectively arranged in one-to-one correspondence with the multiple first position-limiting members 112, and the multiple first position-limiting members 112 are arranged on the carrier 12 at intervals along the circumferential direction of the carrier 12, which is also beneficial to controlling the movement distance of each position of the touch pad 14 relative to the first side surface within a relatively suitable range, thereby being beneficial to improving the pressing sensitivity of each position of the touch pad 14 corresponding to the outer periphery of the piezoelectric element 13. It is understood that, in other embodiments, the first limiting members 112 may be a plurality of first limiting members 112, the plurality of first limiting members 112 are arranged at intervals along the circumferential direction of the casing 11, the number of the second limiting members 141 may correspond to one, and the second limiting members 141 are annular structures arranged around the circumference of the touch pad 14.

As an alternative embodiment, as shown in fig. 4 and 5, the first limiting member 112 may be any one of a limiting strip, a limiting plate and a limiting block disposed on the casing 11. For example, the first limiting member 112 may be integrally formed with the housing 11, so that the first limiting member 112 is integrally formed with the housing 11, which can simplify the installation process and improve the installation efficiency. For another example, the first limiting member 112 may be screwed to the housing 11, for example, a fastening member (such as a bolt or a screw) is connected to the housing 11 through the first limiting member 112, so as to connect the first limiting member 112 to the housing 11. The assembly method of the screw joint is adopted, the assembly process is simple, and the first limiting member 112 can be conveniently installed on the machine shell 11. In this example, the first position-limiting member 112 may be a spacer. For another example, the first limiting member 112 may be bonded to the chassis 11, for example, an adhesive or a back adhesive may be used to bond the first limiting member 112 to the chassis 11, and the first limiting member 112 is connected to the chassis 11 by a bonding method, which is simple in connection manner, high in bonding strength, low in cost, and light in overall weight of the installed chassis 11, and is beneficial to light design of the touch feedback assembly 1.

As another alternative embodiment, as shown in fig. 6, fig. 6 is a schematic structural diagram illustrating that the first limiting member includes a connecting portion and an abutting portion. The first position-limiting member 112 may include a connecting portion 1121 and an abutting portion 1122, the connecting portion 1121 is connected to the housing 11, the abutting portion 1122 is connected to the connecting portion 1121, and at least a portion of the abutting portion 1122 extends into a region of the mounting slot 111 corresponding to the touch pad 14, so that the second position-limiting member 141 may be configured to move to abut against the abutting portion 1122 under an external force, so as to limit a movement displacement of the touch pad 14 relative to the second surface 121. The connecting portion 1121 may have a column structure or a strip structure, such as a connecting column or a connecting strip, and the abutting portion 1122 may have a plate structure or a block structure, such as a circular plate, a square plate, a circular block, or a square block.

For example, the first limiting member 112 may include a screw (the connecting portion 1121) and a nut (the abutting portion 1122) connected to each other, that is, the first limiting member 112 may be a bolt or a screw. The screw is connected with the casing 11, and at least part of the nut extends to the region of the mounting groove 111 corresponding to the touch pad 14, so that the second limiting member 141 can be used for moving to abut against the nut under the action of external force to limit the movement displacement of the touch pad 14 relative to the second surface 121, and by such design, on one hand, the first limiting member 112 can simultaneously have the functions of connection and limitation, and the first limiting member 112 is not required to be additionally fixed on the casing 11 by other fixing members, so that the occupation of the internal space of the touch feedback assembly 1 can be reduced, the mass of the touch feedback assembly 1 can be reduced, and the miniaturization and light weight design of the touch feedback assembly 1 is facilitated; on the other hand, the assembly method of the screw joint is adopted, the assembly process is simple, and the first limiting member 112 is convenient to be installed on the machine shell 11.

Further, the first position-limiting member 112 may further include a spacer (not shown) disposed through the screw, and at least a portion of the spacer extends into a region of the mounting groove 111 corresponding to the touch pad 14, so that the second position-limiting member 141 can be moved to abut against the spacer under the action of an external force to limit the movement displacement of the touch pad 14 relative to the second surface 121.

It can be understood that, in other embodiments, the connection portion 1121 may be connected to the chassis 11 by a screw connection method or an adhesive connection method, and such a connection method is also relatively simple, and the adhesive strength is relatively high, the cost is relatively low, and the overall weight of the installed chassis 11 is relatively light, which is beneficial to the light-weight design of the touch feedback assembly 1.

It should be appreciated that the shapes of the mounting groove 111, the touch pad 14 and the carrier plate 12 can be matched, for example, the mounting groove 111 can be, but is not limited to, a polygonal groove (e.g., a rectangular groove, a square groove, a pentagonal groove, etc.), a circular groove or an elliptical groove, etc. Correspondingly, the touch pad 14 can be, but is not limited to, a polygonal pad (e.g., a rectangular pad, a square pad, a pentagonal pad, etc.), a circular pad, an elliptical pad, or the like; the carrier plate 12 may be, but is not limited to, a polygonal carrier plate 12, a circular carrier plate 12, or an oval carrier plate 12, etc.

Illustratively, the mounting groove 111 may be a rectangular plate having first and second opposite sidewalls. In an alternative embodiment, as shown in fig. 7 and 8, fig. 7 and 8 both show schematic structural diagrams of the touch feedback assembly when the first position limiting member is a position limiting bar. The first position-limiting member 112 located on the first side wall may be a position-limiting strip integrally formed on the housing 11, and the first position-limiting member 112 located on the second side wall may be a position-limiting strip and fixedly connected to the housing 11 by a fastener (e.g., a screw or a bolt). In another alternative embodiment, as shown in fig. 9 and 10, fig. 11 and 12 both show a schematic structural view of the touch feedback assembly when part of the first position-limiting members are position-limiting strips, and the other part is a bolt, the first position-limiting members 112 located on the first side wall may be position-limiting strips integrally formed on the housing 11, the first position-limiting members 112 located on the second side wall may be first position-limiting members, and at least part of nuts of the screws extend to the region of the mounting groove 111 corresponding to the touch pad 14. In yet another alternative embodiment, as shown in fig. 11 and 12, fig. 11 and 12 both show schematic structural diagrams of the touch feedback assembly when the first limiting member is a bolt, the first limiting members 112 located on the first side wall and the second side wall may be bolts, and at least a part of nuts of the bolts extend into the region of the mounting groove 111 corresponding to the touch pad 14. In the above three optional embodiments, the pressing displacement of the touch pad 14 when being deformed by pressing can be limited by the matching relationship between the first limiting member 112 and the second limiting member 141, so as to avoid the vibration sensation dragging at the position being affected by the overlarge pressing displacement of the touch pad 14, thereby being beneficial to improving the pressing sensitivity of the touch pad 14 and ensuring the pressure sensing effect of the touch pad 14; meanwhile, the damage of circuits and elements on the touch pad 14 caused by the overlarge deformation of the touch pad 14 can be avoided, and the functions of protecting the circuits and elements of the touch pad 14 are achieved.

It is understood that, in other embodiments, the first position-limiting members 112 located on the first side wall and the second side wall may be both position-limiting strips integrally formed on the casing 11, or the first position-limiting members 112 located on the first side wall and the second side wall may also be both position-limiting strips and both are fixedly connected to the casing 11 by fasteners (e.g., screws or bolts), and the like, which are not limited herein.

In some embodiments, referring to fig. 2, fig. 3 and fig. 5 again, the piezoelectric touch feedback device 1 further includes a transmitting element 16, the transmitting element 16 is located between the first surface of the touch pad 14 and the second surface of the carrier 12, and the first surface of the touch pad 14 is connected to the second surface 121 of the carrier 12 through the transmitting element 16, that is, the transmitting element 16 may be disposed on the second surface 121 of the carrier 12, and the touch pad 14 may be disposed on an end surface of the transmitting element 16 away from the carrier 12, so that the touch pad 14 does not need to be directly contacted with the piezoelectric element 13, thereby solving the problem of strong local vibration of the touch pad 14 caused by the fact that the touch pad 14 is directly disposed on the piezoelectric element 13, improving the vibration uniformity of the touch pad 14, and ensuring the vibration effect of the touch pad 14.

For example, the transmission member 16 may be an elastic member, which is beneficial for the piezoelectric element 13 to drive the touch pad 14 to vibrate, and may increase the vibration amplitude of the touch pad 14 to meet the requirement of touch feedback. Specifically, in order to ensure the vibration, the transmission member 16 may be made of an elastic hard material, for example, the transmission member 16 may be a hard foam member, a hard silicone member, a hard plastic member, or a hard rubber member, so that the transmission member 16 may have a certain vibration deformation force and the vibration deformation force is small, thereby reducing the buffering effect on the vibration and ensuring the vibration.

In some embodiments, in a direction perpendicular to the second surface 121, that is, in a direction indicated by an upward arrow in fig. 2, the height of the transmitter 16 is greater than the height of the piezoelectric element 13, so as to provide a space between the touch pad 14 and the piezoelectric element 13, that is, the touch pad 14 is disposed on an end surface of the transmitter 16 away from the carrier 12, and the space is provided between the touch pad 14 and the piezoelectric element 13, so that the touch pad 14 and the piezoelectric element 13 are no longer in direct contact, thereby facilitating to substantially maintain the vibration intensity of all places on the touch pad 14, improving the vibration uniformity of the touch pad 14, and ensuring the vibration effect of the touch pad 14.

The touch feedback assembly and the electronic device provided by the embodiment of the utility model are provided with the first locating part on the casing and the second locating part on the first surface of the touch pad, and the first limiting piece extends into the mounting groove and is arranged corresponding to the second limiting piece, the first limiting piece and the second limiting piece are positioned at the periphery of the touch pad, therefore, the motion displacement (pressing displacement) of the periphery of the touch pad moving downwards under the pressing action can be limited by utilizing the matching action of the first limiting piece and the second limiting piece, that is, by adopting the technical scheme of the application, on one hand, can reduce the pressing displacement of the touch pad to avoid the vibration dragging at the position influenced by the overlarge pressing displacement at the periphery of the touch pad, therefore, the pressing sensitivity of the touch pad is improved, the pressure sensing effect of the touch pad is ensured, and the use experience of a user can be effectively improved; on the other hand, the phenomenon that the touch pad deforms too much due to the fact that the pressing displacement of the touch pad is too large can be avoided, and therefore the phenomenon that circuits and elements on the touch pad are damaged due to the fact that the touch pad deforms too much can be avoided, and the functions of protecting the circuits and the elements on the touch pad are achieved.

The touch feedback assembly and the electronic 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 assembly and the electronic device and their core ideas of the present invention; 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 assembly, comprising:

a transmission member located between the first surface and the second surface, the first surface being connected to the second surface through the transmission member;

one side of the casing, which is far away from the touch surface, is provided with a first limiting part, at least part of the first limiting part extends into the region of the mounting groove, which corresponds to the touch pad, the first surface is provided with a second limiting part, the second limiting part is arranged corresponding to the first limiting part, and the second limiting part is used for moving under the action of external force to abut against the first limiting part so as to limit the movement displacement of the touch pad relative to the second surface.

2. The touch feedback device according to claim 1, wherein the first position-limiting member is any one of a position-limiting strip, a position-limiting plate and a position-limiting block disposed on the housing, or the first position-limiting member includes a connecting portion and an abutting portion, the connecting portion is connected to the housing, the abutting portion is connected to the connecting portion, at least a portion of the abutting portion extends to a region of the mounting groove corresponding to the touch pad, and the second position-limiting member is configured to move to abut against the abutting portion under an external force so as to limit a movement displacement of the touch pad relative to the second surface.

3. The touch feedback assembly according to claim 2, wherein when the first position limiting member is any one of a position limiting strip, a position limiting plate and a position limiting block disposed on the housing, the first position limiting member and the housing are integrally formed, or the first position limiting member and the housing are connected by a thread or are bonded.

4. The touch feedback assembly according to claim 1, wherein the first position-limiting member includes a screw and a nut connected to each other, the screw is connected to the housing, at least a portion of the nut extends to a region of the mounting groove corresponding to the touch pad, and the second position-limiting member is configured to move to abut against the nut under an external force so as to limit a movement displacement of the touch pad relative to the second surface.

5. The touch feedback assembly according to claim 4, wherein the first position-limiting member further comprises a spacer, the spacer is disposed through the screw, at least a portion of the spacer extends into a region of the mounting groove corresponding to the touch pad, and the second position-limiting member is configured to move to abut against the spacer under the action of an external force so as to limit the movement displacement of the touch pad relative to the second surface.

6. The touch feedback assembly according to claim 1, wherein the first position-limiting members are plural, the plural first position-limiting members are arranged on the housing at intervals along a circumferential direction of the housing, the plural second position-limiting members are plural correspondingly, and the plural second position-limiting members are respectively arranged in one-to-one correspondence with the plural first position-limiting members; or

The first locating part is one, the first locating part is an annular structure which is arranged around a circle along the circumferential direction of the casing, the second locating part is one correspondingly, and the second locating part is an annular structure which is arranged around a circle along the circumferential direction of the touch pad.

7. The touch feedback device according to any one of claims 1 to 6, wherein a portion of the first limiting member extending into the mounting groove is located between the first surface and the second surface, or the carrier plate is provided with an avoiding groove, and a portion of the first limiting member extending into the mounting groove is located in the avoiding groove.

8. The touch feedback assembly of any one of claims 1-6, wherein the carrier plate has at least one opening extending through at least one of the second side and the third side.

9. The touch feedback assembly of any one of claims 1-6, wherein the height of the transmitter is greater than the height of the piezoelectric element in a direction perpendicular to the second surface, such that there is a gap between the touch pad and the piezoelectric element.

10. An electronic device, characterized in that the electronic device is provided with a touch feedback assembly according to any one of claims 1-9.