CN211236846U - Touch feedback module and touch device - Google Patents

Abstract

The utility model relates to a touch control feedback module and touch control device, the touch control feedback module comprises a suspension wing plate, a transmission structure, a touch pad and a piezoelectric motor, wherein, the suspension wing plate is provided with a containing part, the piezoelectric motor is arranged in the containing part, the transmission structure is arranged on the suspension wing plate, and the touch pad is erected on one side of the transmission structure away from the suspension wing plate; among the above-mentioned touch-control feedback module, because the amplitude of touch pad vibration downwards is restricted by the distance between piezoelectric motor and the touch pad, leads to and sets up the portion of holding on the hang pterygoid lamina, and piezoelectric motor sets up in the portion of holding, can reduce the thickness of transmission structure under the same condition of vibration amplitude downwards of assurance touch pad, and then can reduce the whole thickness of touch-control feedback module.

Description

Touch feedback module and touch device

This utility model claims the priority of the Chinese patent application with the application number 201910803936.0 and the application name "touch feedback module and touch device", which was submitted to the China Accepting Office on August 28, 2019, and some contents of which are incorporated by reference in in this application.

technical field

The utility model relates to the technical field of touch control, in particular to a touch feedback module and a touch control device.

Background technique

In the field of touch technology, touch feedback modules are widely used in touch devices such as notebook computers, touch screen mobile phones, automotive equipment, and industrial control equipment because of their ability to achieve touch feedback and pressure sensing.

Since piezoelectric materials have the functions of providing touch feedback and pressure sensing at the same time, the application of piezoelectric materials in touch feedback modules to obtain better touch feedback and pressure sensing effects has become a hot research topic in current touch technology research. The existing touch feedback module adopts an integrated cantilever structure, and there is a gap in the cantilever structure, so that the cantilever plate transmits the vibration to the piezoelectric material to realize the function of pressure sensing, and the piezoelectric material passes the touch feedback function through The deformation and vibration of the touchpad are manifested, but the existence of the gap makes the overall thickness of the touch feedback module larger, which is not conducive to the thinning of the touch device, especially the high-end products in the notebook computer. The thickness of the product affects its product performance and It is an important factor in the application, and the need to reduce the thickness of the touch feedback module inside it is very urgent.

Utility model content

Based on this, it is necessary to provide a touch feedback module and a touch device to solve the problem that the overall thickness of the existing touch feedback module is relatively large.

A touch feedback module includes a cantilever plate, a transmission structure, a touch panel and a piezoelectric motor, wherein the cantilever plate is provided with a accommodating portion, and the piezoelectric motor is arranged in the accommodating portion along a vertical direction. In the stacking direction of the piezoelectric motor and the cantilever plate, at least part of the projection of the piezoelectric motor overlaps the projection of the cantilever plate, the transmission structure is arranged on the cantilever plate, and the touch pad It is erected on the side of the transmission structure away from the cantilever plate.

In the above-mentioned touch feedback module, since the amplitude of the downward vibration of the touch panel is limited by the distance between the piezoelectric motor and the touch panel, a receiving part is arranged on the suspension plate, the piezoelectric motor is arranged in the receiving part, and the weapon is limited. Along the stacking direction perpendicular to the piezoelectric motor and the cantilever plate, at least part of the projection of the piezoelectric motor overlaps the projection of the cantilever plate, so that the thickness of the transmission structure can be reduced while ensuring that the touchpad also vibrates downwards. Thus, the overall thickness of the touch feedback module can be reduced.

In one embodiment, the accommodating portion is opened on a surface of the suspension board facing the touch pad, and faces the suspension board in a direction perpendicular to the surface of the suspension board facing the touch pad In this case, the cantilever plate can be applied to various supporting structures, so as to avoid the influence of the setting of the accommodating portion on the supporting structure of the cantilever plate.

In one of the embodiments, the accommodating portion is opened on a surface of the suspension plate facing away from the touch panel, and faces the suspension plate in a direction perpendicular to the surface of the suspension plate facing away from the touch panel In order to further reduce the thickness of the transmission structure, the overall thickness of the touch feedback module can be reduced, and the transmission structure can be easily arranged on the suspension plate.

In one embodiment, the suspension plate is provided with a locking hole, and the locking hole is opened on the surface of the suspension plate away from the touch panel, and is perpendicular to the surface of the suspension plate away from the touch panel. The direction of the surface of the touch panel extends toward the inside of the suspension plate, and the suspension plate is fixed on the main body casing through the locking hole, so as to facilitate the support and installation of the suspension plate.

In one embodiment, the depth of the accommodating portion is not greater than two-thirds of the thickness of the cantilever plate, so as to ensure the support strength of the cantilever plate to the piezoelectric motor and the reliability of the touch feedback module.

In one embodiment, the depth of the receiving portion is not less than the thickness of the piezoelectric motor, so as to further reduce the thickness of the transmission structure, thereby reducing the overall thickness of the touch feedback module.

In one of the embodiments, the suspension plate includes a first body and a second body arranged in layers, the receiving portion is disposed inside the suspension plate, and is formed by the first body and the second body. It is surrounded by the body to ensure the support strength of the suspension plate to the transmission structure and the touch panel, and to ensure the reliability of the touch feedback module.

In one embodiment, the accommodating portion is disposed on the first body, and opens on a surface of the first body facing the second body, and the accommodating portion faces the direction perpendicular to the first body. The direction of the surface of the second body is concave toward the inside of the first body, so as to facilitate the arrangement of the accommodating part and the installation of the piezoelectric motor.

In one of the embodiments, the accommodating part includes a first accommodating part and a second accommodating part which are oppositely arranged, the first accommodating part is opened on the surface of the first body facing the second body, and is perpendicular to the The first body is recessed toward the interior of the first body in the direction of the surface of the first body facing the second body, and the second accommodating portion is opened on the surface of the second body facing the first body. The direction perpendicular to the surface of the second body facing the first body is concave toward the interior of the second body, and on the basis of ensuring the support strength of the suspension plate to the transmission structure and the touch panel, the first body and the The second body is structurally stable.

In one embodiment, a reinforcing plate is provided at the bottom of the receiving portion, and the piezoelectric motor is disposed on the reinforcing plate to ensure the support strength of the cantilever plate to the piezoelectric motor and ensure the touch feedback mode. Group reliability.

In addition, the present invention also provides a touch device, which includes the touch feedback module described in any of the above embodiments.

In the above-mentioned touch control device, since the touch feedback module is provided with a accommodating portion on the suspension plate and the piezoelectric motor is arranged in the accommodating portion, the thickness of the transmission structure can be reduced under the condition that the same downward vibration amplitude of the touch panel is ensured. , and the overall thickness of the touch feedback module can be reduced. Therefore, the overall thickness of the touch device with the touch feedback module is smaller, and the touch device can be made lighter and thinner.

Description of drawings

1 to 3 are schematic cross-sectional views of the touch feedback module having different depths of accommodation parts according to an embodiment of the present invention;

4-6 are schematic cross-sectional views of the touch feedback module with different support structures according to an embodiment of the present invention;

7-9 are cross-sectional schematic diagrams of a touch feedback module having different depths of accommodating portions in another embodiment of the present invention;

10-11 are cross-sectional schematic diagrams when the touch feedback module has different support structures according to another embodiment of the present invention;

12-14 are cross-sectional schematic diagrams of a touch feedback module having different depth receiving portions in yet another embodiment of the present invention;

15-17 are cross-sectional schematic diagrams when the touch feedback module has different support structures according to another embodiment of the present invention;

18 is a schematic cross-sectional view of a touch feedback module with a reinforcing plate according to another embodiment of the present invention.

Description of reference numbers:

100-touch feedback module;

110-wing plate;

111-accommodating part; 112-protruding part; 113-locking hole; 114-first body; 115-second body; 116-first accommodating part; 117-second accommodating part;

120 - transfer structure;

130 - touchpad;

140 - Piezoelectric motor;

150 - support plate;

160 - Reinforcing plate.

Detailed ways

In order to make the above objects, features and advantages of the present utility model more clearly understood, the specific embodiments of the present utility model are described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention can be implemented in many ways different from those described here, and those skilled in the art can make similar improvements without violating the connotation of the present invention. Therefore, the present invention is not subject to the specific embodiments disclosed below. limit.

It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which the present invention belongs. The terms used in the description of the present invention herein are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

As shown in FIG. 1 , a touch feedback module 100 includes a cantilever plate 110 , a transmission structure 120 , a touch panel 130 and a piezoelectric motor 140 , wherein the cantilever plate 110 is provided with a accommodating portion 111 , and the accommodating portion 111 The plurality of accommodating portions 111 may be arranged in the interior of the cantilever plate 110, or the accommodating portion 111 may be arranged on either of the two opposite surfaces of the cantilever plate 110, and some of the plurality of accommodating portions 111 may be arranged on one surface and the other portion on the other. On the surface, the number and shape of the accommodating parts 111 are consistent with the piezoelectric motor 140; The area of the accommodating portion 111; along the stacking direction perpendicular to the piezoelectric motor 140 and the cantilever plate 110, at least part of the projection of the piezoelectric motor 140 overlaps the projection of the cantilever plate 110, so that part of the piezoelectric motor 140 is disposed on the cantilever plate The inside of the board 110 , or all the piezoelectric motors 140 are disposed inside the cantilever plate 110 ;

In the specific setting, the cantilever plate 110 can be made of aluminum alloy, bakelite, glass, stainless steel, and other alloy materials. The thickness of the overall structure can be reduced on the basis of the mechanical strength of the cantilever plate 110, and the thickness of the cantilever plate 110 ranges from 0.3mm to 5mm, for example, 0.3mm, 1mm, 2mm, 2.5mm, 3mm, 3.5mm. , 4mm, 3.5mm, 5mm, etc., and the specific material and thickness of the suspension plate 110 are determined according to the actual situation of the touch feedback module 100 .

The transmission structure 120 is used to transmit the force, and can use elastic materials such as foam, rubber, plastic, etc., with a hardness of less than 80A, or the transmission structure 120 can also use a rigid material, and the transmission structure 120 and the suspension plate 110 pass through The transmission structure 120 using the above-mentioned structural form can not only ensure a good transmission effect, but also eliminate the influence caused by the deformation of the cantilever plate 110 .

The piezoelectric motor 140 can be made of organic piezoelectric materials, inorganic ceramic piezoelectric materials, single crystal piezoelectric materials, lead-free piezoelectric materials, etc., and is disposed on the suspension plate by means of deposition, bonding, snap connection, and concave-convex fitting connection. Inside the accommodating portion 111 of the 110, preferably, piezoelectric ceramics are selected for the piezoelectric motor 140. When the piezoelectric ceramics are in the shape of a rectangular parallelepiped, the length, width, and height can be 50mm*10mm*0.2mm. At this time, the shape of the accommodating portion 111 is: Of course, the piezoelectric motor 140 can also be in the shape of a cube, a cylinder, a ring, or the like for the cuboid accommodating portion matched with the piezoelectric ceramic.

The touchpad 130 is erected above the suspension plate 110 through two sets of transmission structures 120 . There is a certain distance between the touchpad 130 and the piezoelectric motor 140 , and the distance is used to limit the vibration of the touchpad 130 and is larger than the touchpad 130 downwards The amplitude of the vibration is to prevent the piezoelectric motor 140 from being crushed.

In the above touch feedback module 100, since the amplitude of the downward vibration of the touch panel 130 is limited by the distance between the piezoelectric motor 140 and the touch panel 130, the accommodating portion 111 is provided on the suspension plate 110, and the piezoelectric motor 140 is disposed in the accommodating portion 111 and defines a stacking direction perpendicular to the piezoelectric motor 140 and the suspension plate 110 , at least part of the projection of the piezoelectric motor 140 overlaps the projection of the suspension plate 110 , so that at least part of the piezoelectric motor 140 is arranged inside the suspension plate 110; compared with the touch feedback module in the prior art, to ensure that the distance between the piezoelectric motor 140 and the touch pad 130 remains unchanged, the transmission structure 120 in the above touch feedback module 100 Therefore, the above-mentioned touch feedback module 100 can reduce the thickness of the transmission structure 120 while ensuring the same downward vibration amplitude of the touch panel 130, thereby reducing the overall thickness of the touch feedback module 100. Thickness, is conducive to achieving thinning.

There are various ways of setting the accommodating portion 111 . As shown in FIG. 1 , FIG. 2 , FIG. 3 , FIG. 4 , FIG. 5 and FIG. 6 , in a preferred embodiment, the accommodating portion 111 opens from the suspension plate 110 and faces the touch panel 130 . the surface of the suspension plate 110 toward the surface of the touch pad 130 and extend to a certain depth to the interior of the suspension plate 110 to form a depression. The actual condition of the board 110 is determined.

In the above touch feedback module 100, the piezoelectric motor 140 is arranged in the accommodating portion 111, so that the thickness of the transmission structure 120 is smaller under the condition of ensuring the same downward vibration amplitude of the touch panel 130, thereby reducing the touch. The overall thickness of the feedback module 100 is controlled; and since the accommodating portion 111 is disposed on the side of the suspension plate 110 facing the touchpad 130, and the surface of the suspension plate 110 facing away from the touchpad 130 is not affected, it is still a complete plane. , the cantilever plate 110 can be applied to various supporting structures, so as to avoid the influence of the setting of the accommodating portion 111 on the support structure of the cantilever plate 110 , as shown in FIG. 4 , the support structure of the cantilever plate 110 is that the cantilever plate 110 deviates One side of the piezoelectric motor 140 has a protruding portion 112. The protruding portion 112 is used to support the overall structure and provide a fulcrum for the suspension plate 110 to vibrate. Of course, the support structure is not limited to the above-mentioned protruding portion 112. As shown in FIG. 5, the support structure can also be a support plate 150. As shown in FIG. 6 , the supporting structure can also be a locking hole 113, which is arranged on the side of the suspension plate 110 away from the touch panel 130 for assembling the suspension plate 110 on the on the main body shell to support the suspension plate 110 .

The depth of the accommodating portion 111 has various situations. As shown in FIG. 1 , FIG. 2 and FIG. 3 , in a preferred embodiment, the depth of the accommodating portion 111 is not greater than two-thirds of the thickness of the cantilever panel 110 . , the depth of the accommodating part 111 can be two-thirds of the thickness of the cantilever plate 110, and the depth of the accommodating part 111 can also be less than two-thirds of the thickness of the cantilever plate 110, for example, the depth of the accommodating part 111 can be the cantilever 7/12, 1/2, 5/12, 1/3, 1/4, 1/6, 1/12, etc. of the thickness of the plate 110, and the depth of the accommodating portion 111 The relationship with the thickness of the cantilever plate 110 is determined according to the characteristics of the piezoelectric motor 140 , the specific application scenario, and the actual situation of the cantilever plate 110 .

In the above touch feedback module 100, by setting the depth of the accommodating portion 111 to be no greater than two-thirds of the thickness of the cantilever plate 110, the thickness at the minimum thickness of the cantilever plate 110 is limited to be no less than the thickness of the cantilever plate at other positions. 1/3, to ensure that the overall structural strength of the cantilever plate 110 is not greatly affected by the setting of the accommodating portion 111, thereby ensuring the supporting strength of the cantilever plate 110 to the piezoelectric motor 140, thereby ensuring the contact The reliability of the control feedback module 100 is improved, and the stability and service life of the product are improved.

As shown in FIG. 3 , the depth of the accommodating portion 111 is five-twelfths of the thickness of the suspension plate 110 . When the piezoelectric motor 140 is disposed in the accommodating portion 111 , the surface of the piezoelectric motor 140 facing the touch panel 130 exceeds the accommodating surface. At this time, the overall structural strength of the suspension plate 110 is relatively large, and the supporting strength for the piezoelectric motor 140 is relatively large, which can better support the piezoelectric motor 140, while ensuring that the touch panel 130 also vibrates downwards. The thickness of the lower transmission structure 120 is smaller, the overall thickness of the touch feedback module 100 is smaller, and the reliability is stronger.

On the basis of the above touch feedback module 100 , in order to further reduce the overall thickness of the touch feedback module 100 , as shown in FIGS. 1 and 2 , specifically, the depth of the accommodating portion 111 is not less than the thickness of the piezoelectric motor 140 . In the specific setting, the depth of the accommodating portion 111 can be equal to the thickness of the piezoelectric motor 140 , and the depth of the accommodating portion 111 can also be greater than the thickness of the piezoelectric motor 140 ; The thickness of the piezoelectric motor 140 is not less than that of the piezoelectric motor 140 to further reduce the thickness of the transmission structure 120 , thereby reducing the overall thickness of the touch feedback module 100 .

As shown in FIG. 1 , the depth of the accommodating portion 111 is approximately equal to the thickness of the piezoelectric motor 140 . When the piezoelectric motor 140 is arranged in the accommodating portion 111 , the surface of the suspension plate 110 facing the touch panel 130 is the same as the piezoelectric motor 140 . The surfaces of the touch pads 130 are flush, and at this time, the thickness of the transmission structure 120 is relatively small under the condition that the touch pad 130 vibrates downwards at the same amplitude, and the overall structural strength of the cantilever plate 110 is relatively large, which can be well supported For the piezoelectric motor 140, the overall thickness of the touch feedback module 100 is relatively small, and the reliability is strong.

As shown in FIG. 2 , the depth of the accommodating portion 111 is two-thirds of the thickness of the suspension plate 110 . When the piezoelectric motor 140 is disposed in the accommodating portion 111 , the surface of the piezoelectric motor 140 facing the touch panel 130 is located in the accommodating portion. Inside 111, at this time, the thickness of the transmission structure 120 is further reduced under the condition that the touchpad 130 vibrates downwards at the same amplitude. On the basis that the transmission structure 120 can meet the transmission requirements, the thickness of the transmission structure 120 can be When the plate 130 vibrates downward to the maximum amplitude, it just comes into contact with the surface of the piezoelectric motor 140 facing the touch panel 130, so that the overall thickness of the touch feedback module 100 is smaller, and the overall structural strength of the suspension plate 110 can meet the requirements of For the support requirements of the piezoelectric motor 140, the overall thickness of the touch feedback module 100 is smaller and the reliability is stronger.

The accommodating portion 111 can be arranged in various ways. As shown in FIG. 7 , FIG. 8 , FIG. 9 , FIG. 10 and FIG. 11 , in a preferred embodiment, the accommodating portion 111 is opened on the surface of the suspension board 110 facing away from the touch panel 130 , And along the direction of the suspension plate 110 away from the surface of the touch panel 130 , a depression is formed by extending a certain depth to the interior of the suspension plate 110 , and the size of the extended depth is determined according to the characteristics of the piezoelectric motor 140 , the specific application scenario, and the size of the suspension plate 110 . actual situation to be determined.

In the above touch feedback module 100, the piezoelectric motor 140 is arranged in the accommodating portion 111, so that the thickness of the transmission structure 120 can be further reduced under the condition of ensuring the same downward vibration amplitude of the touch panel 130. On the basis that the structure 120 can meet the transmission requirements, the thickness of the transmission structure 120 can be reduced to the extent that when the touch panel 130 vibrates downward to the maximum amplitude, it just contacts the surface of the suspension plate 110 , so that the entire touch feedback module 100 is in contact with the surface. The thickness is smaller, so that the overall thickness of the touch feedback module 100 can be reduced. Since the accommodating portion 111 is disposed on the side of the suspension plate 110 away from the touchpad 130 , the surface of the suspension plate 110 facing the touchpad 130 is not affected. Still a complete plane, it can facilitate the disposition of the transfer structure 120 on the suspension panel 110 .

However, since the accommodating portion 111 is disposed on the side of the suspension plate 110 away from the touch panel 130 , the supporting manner is different from that when the accommodating portion 111 is disposed on the side of the suspension plate 110 facing the touch panel 130 . At this time, there are also various supporting structures. As shown in FIG. 10 , specifically, the suspension plate 110 is provided with a locking hole 113 , and the locking hole 113 is opened on the surface of the suspension plate 110 away from the touch panel 130 and extends along the The direction perpendicular to the surface of the suspension plate 110 away from the touch pad 130 extends toward the interior of the suspension plate 110 to a certain depth, and the specific depth is determined according to the actual situation of the touch feedback module 100 .

In the above-mentioned touch feedback module 100, the cantilever plate 110 can be fixed on the main body casing through the locking hole 113, and the support of the cantilever plate 110 can be realized. Of course, the support structure is not limited to the locking hole 113, and can also be in other structural forms. As shown in FIG. one side, and abuts on the surface of the piezoelectric motor 140 away from the touch panel 130 to support the suspension plate 110 , and in order to protect the piezoelectric motor 140 , an elastic protective layer can also be provided between the support plate 150 and the piezoelectric motor 140 .

The depth of the accommodating portion 111 has various situations. As shown in FIG. 7 , FIG. 8 and FIG. 9 , in a preferred embodiment, the depth of the accommodating portion 111 is not greater than two-thirds of the thickness of the cantilever panel 110 . , the depth of the accommodating part 111 can be two-thirds of the thickness of the cantilever plate 110, and the depth of the accommodating part 111 can also be less than two-thirds of the thickness of the cantilever plate 110, for example, the depth of the accommodating part 111 can be the cantilever 7/12, 1/2, 5/12, 1/3, 1/4, 1/6, 1/12, etc. of the thickness of the plate 110, and the depth of the accommodating portion 111 The relationship with the thickness of the cantilever plate 110 is determined according to the characteristics of the piezoelectric motor 140 , the specific application scenario, and the actual situation of the cantilever plate 110 .

In the above touch feedback module 100, by setting the depth of the accommodating portion 111 to be no greater than two-thirds of the thickness of the cantilever plate 110, the thickness at the minimum thickness of the cantilever plate 110 is limited to be no less than the thickness of the cantilever plate at other positions. 1/3, to ensure that the overall structural strength of the cantilever plate 110 is not greatly affected by the setting of the accommodating portion 111, thereby ensuring the supporting strength of the cantilever plate 110 to the piezoelectric motor 140, thereby ensuring the contact The reliability of the control feedback module 100 is improved, and the stability and service life of the product are improved.

As shown in FIG. 9 , the depth of the accommodating portion 111 is five-twelfths of the thickness of the suspension plate 110 . When the piezoelectric motor 140 is arranged in the accommodating portion 111 , the surface of the piezoelectric motor 140 facing away from the touch panel 130 exceeds the accommodating portion. At this time, the overall structural strength of the suspension plate 110 is relatively large, and the supporting strength for the piezoelectric motor 140 is relatively large, which can better support the piezoelectric motor 140. Since the piezoelectric motor 140 is far away from the touch panel 130, It is ensured that the thickness of the transmission structure 120 is smaller and the reliability is stronger under the condition that the touch panel 130 vibrates downward at the same amplitude.

On the basis of the above touch feedback module 100 , in order to further reduce the overall thickness of the touch feedback module 100 , as shown in FIGS. 7 and 8 , specifically, the depth of the accommodating portion 111 is not less than the thickness of the piezoelectric motor 140 . In the specific setting, the depth of the accommodating portion 111 can be equal to the thickness of the piezoelectric motor 140 , and the depth of the accommodating portion 111 can also be greater than the thickness of the piezoelectric motor 140 ; The thickness of the piezoelectric motor 140 is not less than that of the piezoelectric motor 140 to further reduce the thickness of the transmission structure 120 , thereby reducing the overall thickness of the touch feedback module 100 .

As shown in FIG. 7 , the depth of the accommodating portion 111 is approximately equal to the thickness of the piezoelectric motor 140 . When the piezoelectric motor 140 is arranged in the accommodating portion 111 , the surface of the suspension plate 110 facing away from the touch panel 130 is facing away from the piezoelectric motor 140 . The surfaces of the touch pads 130 are flush. At this time, the thickness of the transmission structure 120 is small while the vibration amplitude of the touch pad 130 is guaranteed to vibrate downwards. The position of the required support structure does not change. The overall thickness is relatively small, and the overall structural strength of the cantilever plate 110 is relatively large, which can better support the piezoelectric motor 140 and has high reliability.

As shown in FIG. 8 , the depth of the accommodating portion 111 is two-thirds of the thickness of the suspension plate 110 . When the piezoelectric motor 140 is arranged in the accommodating portion 111 , the surface of the piezoelectric motor 140 facing away from the touch panel 130 is located in the accommodating portion. Inside 111 , at this time, the thickness of the transmission structure 120 is small under the condition of ensuring that the touch panel 130 vibrates downward at the same amplitude, and the required support structure moves toward the receiving part 111 to contact the surface of the piezoelectric motor 140 away from the touch panel 130 , in order to reduce the thickness of the structural member on the side of the suspension plate 110 away from the touch panel 130 , so that the overall thickness of the touch feedback module 100 is smaller, and the overall structural strength of the suspension plate 110 can meet the requirements for the piezoelectric motor 140 . The support requirements are strong, and the reliability is strong.

There are various ways of setting the accommodating portion 111 , as shown in FIG. 12 , FIG. 13 , FIG. 14 , FIG. 15 , FIG. 16 and FIG. 17 , in a preferred embodiment, the cantilever panel 110 includes the first body 114 and In the second body 115 , the accommodating part 111 is disposed inside the wing panel 110 , and the accommodating part 111 is surrounded by the first body 114 and the second body 115 . In the specific setting, the structures and materials of the first body 114 and the second body 115 may be the same, so as to facilitate processing and preparation and replacement when damaged, and the structures and materials of the first body 114 and the second body 115 may also be different to ensure Different support strengths; the transmission structure 120 can be provided on the first body 114 or on the second body 115 . It should be noted that, the first body 114 and the second body 115 may be fixed and integrated by means of bonding, snap connection, concave-convex fitting connection, and the like.

In the above-mentioned touch feedback module 100 , the accommodating portion 111 is located inside the cantilever plate 110 , and the piezoelectric motor 140 is disposed in the accommodating portion 111 , so that the piezoelectric motor 140 is protected by the first body 114 and the second body 115 to protect the piezoelectric motor 140 . Avoid mechanical damage to the piezoelectric motor 140 when the touchpad 130 vibrates downward, and improve the service life of the piezoelectric motor 140 ; at the same time, the use of the split suspension plate 110 can meet the different supporting strengths of the transmission structure 120 and the piezoelectric motor 140 . By changing the structural features, the support strength of the suspension plate 110 to the transmission structure 120 , the piezoelectric motor 140 and the touch panel 130 can be ensured, and the reliability of the touch feedback module 100 can be ensured.

However, since the piezoelectric motor 140 is disposed inside the suspension plate 110 , the thickness of the transmission structure 120 can be further reduced under the condition that the same downward vibration amplitude of the touch panel 130 is ensured. Basically, the thickness of the transmission structure 120 can be reduced so that when the touch panel 130 vibrates downward to the maximum amplitude, it just contacts the surface of the suspension plate 110 facing the touch panel 130 , so that the overall thickness of the touch feedback module 100 is smaller. , which can reduce the overall thickness of the touch feedback module 100 ; at the same time, the surface of the suspension plate 110 facing the touch pad 130 is still a complete plane without being affected by the accommodating portion 111 , which can facilitate the transmission structure 120 to be disposed on the suspension plate 110 .

The surface of the suspension board 110 facing away from the touchpad 130 is still a complete plane without being affected by the accommodating portion 111 . At this time, the suspension board 110 can be applied to various supporting structures, so as to avoid the installation of the accommodating portion 111 on the suspension board. As shown in FIG. 15 , the support structure of the cantilever plate 110 is a protruding portion 112 on the side of the cantilever plate 110 away from the touch panel 130 , and the protruding portion 112 is used to support the overall structure, which is The cantilever plate 110 provides a fulcrum for vibration, and is assembled into the mainframe casing by means of glue bonding, thread locking, and concave-convex snapping; of course, the support structure is not limited to the above-mentioned protrusions 112. It can also be a support plate 150, and the support plate 150 abuts on the surface of the suspension plate 110 away from the touch pad 130 to support the suspension plate 110; as shown in FIG. 17, the supporting structure can also be a locking hole 113, which can be locked The hole 113 is disposed on the side of the suspension plate 110 away from the touch panel 130 , and is used for assembling the suspension plate 110 on the main body casing to support the suspension plate 110 .

The accommodating portion 111 can be arranged in various ways inside the wing panel 110 , as shown in FIGS. 12 and 13 . Specifically, the accommodating portion 111 is provided in the first body 114 , and the accommodating portion 111 is opened toward the first body 114 . The surface of the second body 115 extends toward the interior of the first body 114 in a direction perpendicular to the surface of the first body 114 toward the second body 115 to a certain depth to form a depression, and the depth may be the same as the thickness of the piezoelectric motor 140 , In order to reduce the thickness of the entire cantilever plate 110, the depth may also be greater than the thickness of the piezoelectric motor 140, so as to facilitate the installation of the piezoelectric motor 140. At this time, the surface of the second body 115 facing the first body 114 may be a plane, or To be a T-shaped surface, the protruding part of the T-shaped surface can be embedded in the accommodating part 111 ; and the size of the extended depth of the accommodating part 111 is determined according to the characteristics of the piezoelectric motor 140 , the specific application scenario and the actual situation of the cantilever plate 110 .

In the above touch feedback module 100, the accommodating portion 111 is integrally disposed on the first body 114, on the one hand, it is convenient for the setting of the accommodating portion 111, the processing is more convenient, and on the other hand, it is also convenient for the installation of the piezoelectric motor 140; 12 , the second body 115 is close to the touchpad 130 , and the transmission structure 120 is disposed on the surface of the second body 115 facing the touchpad 130 . To support the transmission structure 120 and the touch pad 130; as shown in FIG. 13, the first body 114 is close to the touch pad 130, and the transmission structure 120 is arranged on the surface of the first body 114 facing the touch pad 130. At this time, the first body 114 can be selected The high-strength material is used so that the first body 114 can still better support the transmission structure 120 and the touch panel 130 after the accommodating portion 111 is provided.

The accommodating portion 111 can be arranged in various ways inside the wing panel 110 . As shown in FIG. 14 , specifically, the accommodating portion 111 includes a first accommodating portion 116 and a second accommodating portion 117 that are oppositely arranged, and the first accommodating portion 116 is open. A depression is formed on the surface of the first body 114 facing the second body 115 and extending to a certain depth inside the first body 114 in a direction perpendicular to the surface of the first body 114 facing the second body 115 , and the second accommodating portion 117 is open A depression is formed on the surface of the second body 115 facing the first body 114 and extending to a certain depth inside the second body 115 along the direction perpendicular to the surface of the second body 115 facing the first body 114 . The depths of the first accommodating portion 116 and the second accommodating portion 117 may be the same to facilitate processing and preparation, and the depths of the first accommodating portion 116 and the second accommodating portion 117 may also be different, so that the first body 114 and the second body 115 provide different depths For example, the first body 114 supports the transmission structure 120 and the touch panel 130, and the second body 115 supports the piezoelectric motor 140; the sum of the depths of the first receiving part 116 and the second receiving part 117 can be the same as the The thickness is the same to reduce the thickness of the entire suspension plate 110 , and the sum of the depths of the first accommodating portion 116 and the second accommodating portion 117 may also be greater than the thickness of the piezoelectric motor 140 to facilitate the installation of the piezoelectric motor 140 .

In the above-mentioned touch feedback module 100, the depth of the accommodating portion 111 is distributed on the first body 114 and the second body 115, so that the structural strength of the first body 114 and the second body 115 is high, so as to ensure the suspension The support strength of the wing plate 110 to the transmission structure 120, the piezoelectric motor 140 and the touch panel 130 can also ensure the structural stability of the first body 114 and the second body 115, improve the support strength and reliability of the suspension wing plate 1110, and further The stability and service life of the entire touch feedback module 100 are improved.

Since the existence of the accommodating portion 111 affects the support strength of the cantilever plate to the piezoelectric motor, in order to improve the reliability of the overall module, as shown in FIG. 18 , in a preferred embodiment, the bottom of the accommodating portion 111 is provided with a reinforcing plate 160 , the piezoelectric motor 140 is arranged on the reinforcing plate 160, and the supporting effect on the piezoelectric motor 140 is improved by the reinforcing plate 160, so as to ensure the supporting strength of the cantilever plate to the piezoelectric motor 140, thereby protecting the piezoelectric motor 140, thereby ensuring The reliability of the touch feedback module.

In the above-mentioned touch feedback module 100, during the specific setting, the piezoelectric motor 140 can be attached to the reinforcing plate 160 first, and then combined with the accommodating portion 111 of the cantilever plate 110; as shown in FIG. 18, the reinforcing plate 160 It can be arranged in the first accommodating part 116 and the second accommodating part 117, or can be arranged only in the second accommodating part 117; and the reinforcing plate 160 is not limited to the touch feedback module shown in FIG. 18 . 100, can also be other touch feedback modules 100, at this time, the reinforcing plate 160 is located between the bottom of the accommodating portion 111 and the piezoelectric motor 140; the material of the reinforcing plate 160 can be a steel plate, an alloy plate or other supports materials with high strength, and other protective layers, such as waterproof materials, flexible circuit boards, etc., can also be provided at the bottom of the accommodating portion 111 ; actual situation to be determined.

It is worth noting that in the above touch feedback module 100, in order to improve the consistency of pressure perception and the uniformity of touch feedback, the suspension plate 110, the transmission structure 120, the touch panel 130, the piezoelectric motor 140, and the buffer component 150 , the accommodating part 111 , the protruding part 112 , the locking hole 113 and the reinforcing plate 160 are all suspended from the center line X of the wing plate 110 in a symmetrical structure. The fluctuation range of the voltage signal is relatively small, and the pressure perception consistency is high. The piezoelectric motor 140 receives the voltage signal, and the touch panel 130 can generate a uniform displacement along the stacking direction, and the uniformity of the touch feedback is good.

In addition, the present invention also provides a touch device, including the touch feedback module 100 according to any of the above embodiments. Touch devices include but are not limited to notebook computers, mobile phones, in-vehicle devices, and other devices that require touch feedback and pressure sensing. For example, if the touch device is a notebook computer, the touch feedback module 100 is an input touch feedback module of the notebook computer, also referred to as a PC touch feedback module.

In the above-mentioned touch device, since the touch feedback module 100 sets the accommodating portion 111 on the suspension plate 110, and disposes the piezoelectric motor 140 in the accommodating portion 111, the touch panel 130 is also guaranteed to vibrate downward in the same amplitude. The thickness of the transmission structure 120 can be reduced, which in turn can reduce the overall thickness of the touch feedback module 100 . Therefore, the overall thickness of the touch device with the touch feedback module 100 is small, and the touch device can be made lighter and thinner. .

The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity, all possible combinations of the technical features in the above-described embodiments are not described. However, as long as there is no contradiction between the combinations of these technical features, All should be regarded as the scope described in this specification.

The above-mentioned embodiments only represent several embodiments of the present utility model, and the descriptions thereof are specific and detailed, but should not be construed as a limitation on the scope of the utility model patent. It should be pointed out that for those of ordinary skill in the art, some modifications and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent for this utility model shall be subject to the appended claims.

Claims (11)

1. The utility model provides a touch-control feedback module, its characterized in that, is including hanging pterygoid lamina, transmission structure, touch pad and piezoelectric motor, wherein, be equipped with the portion of holding on the hanging pterygoid lamina, piezoelectric motor set up in the portion of holding, along the perpendicular to piezoelectric motor and the range upon range of direction of hanging the pterygoid lamina, at least part piezoelectric motor's projection with the projection of hanging the pterygoid lamina overlaps, transmission structure set up in hang the pterygoid lamina, the touch pad erect in transmission structure keeps away from one side of hanging the pterygoid lamina.

2. The touch feedback module of claim 1, wherein the receiving portion is open on a surface of the suspension plate facing the touch pad and is recessed toward an interior of the suspension plate in a direction perpendicular to the surface of the suspension plate facing the touch pad.

3. The touch feedback module of claim 1, wherein the receiving portion is open at a surface of the suspension plate facing away from the touch pad and is recessed toward an interior of the suspension plate in a direction perpendicular to the surface of the suspension plate facing away from the touch pad.

4. The touch feedback module of claim 3, wherein the suspension plate has a locking hole, the locking hole opens on a surface of the suspension plate facing away from the touch pad and extends toward an inside of the suspension plate along a direction perpendicular to the surface of the suspension plate facing away from the touch pad.

5. The touch feedback module defined in any one of claims 2-4, wherein the receptacle portion has a depth that is no greater than two-thirds of the thickness of the cantilevered panel.

6. The touch feedback module of claim 5, wherein a depth of the receiving portion is not less than a thickness of the piezoelectric motor.

7. The touch feedback module according to claim 1, wherein the suspension plate includes a first body and a second body stacked together, and the receiving portion is disposed inside the suspension plate and surrounded by the first body and the second body.

8. The touch feedback module according to claim 7, wherein the receiving portion is disposed on the first body and opens on a surface of the first body facing the second body, and the receiving portion is recessed toward an inside of the first body along a direction perpendicular to the surface of the first body facing the second body.

9. The touch feedback module according to claim 7, wherein the receiving portion comprises a first receiving portion and a second receiving portion, the first receiving portion is open on a surface of the first body facing the second body and is recessed toward an inside of the first body along a direction perpendicular to the surface of the first body facing the second body, and the second receiving portion is open on a surface of the second body facing the first body and is recessed toward an inside of the second body along a direction perpendicular to the surface of the second body facing the first body.

10. The touch feedback module according to any one of claims 7-9, wherein a stiffener is disposed at a bottom of the receiving portion, and the piezoelectric motor is disposed on the stiffener.

11. A touch device comprising the touch feedback module according to any one of claims 1-10.

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