CN112445329A - Touch feedback module and touch device - Google Patents
Touch feedback module and touch device Download PDFInfo
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- CN112445329A CN112445329A CN201911175819.0A CN201911175819A CN112445329A CN 112445329 A CN112445329 A CN 112445329A CN 201911175819 A CN201911175819 A CN 201911175819A CN 112445329 A CN112445329 A CN 112445329A
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- feedback module
- suspension
- piezoelectric motor
- touch feedback
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/016—Input arrangements with force or tactile feedback as computer generated output to the user
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
- G06F3/0354—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor with detection of 2D relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D mice, trackballs, pens or pucks
-
- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/033—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor
- G06F3/0354—Pointing devices displaced or positioned by the user, e.g. mice, trackballs, pens or joysticks; Accessories therefor with detection of 2D relative movements between the device, or an operating part thereof, and a plane or surface, e.g. 2D mice, trackballs, pens or pucks
- G06F3/03547—Touch pads, in which fingers can move on a surface
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- G—PHYSICS
- G06—COMPUTING OR CALCULATING; COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
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- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Human Computer Interaction (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- User Interface Of Digital Computer (AREA)
- Position Input By Displaying (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
Abstract
The invention relates to a touch feedback module and a touch device, wherein the touch feedback module comprises: the suspension wing plate comprises a bearing part and a suspension wing part, and the suspension wing part is arranged around the bearing part and connected to the bearing part; the transmission structure is arranged on the suspension wing part; at least one piezoelectric motor, each piezoelectric motor is arranged on the bearing part; the touch pad, the touch pad erects in one side that transmission structure kept away from the suspension board, in above-mentioned touch-control feedback module, the suspension portion sets up around the supporting part, and suspension portion connects in the supporting part, be provided with piezoelectric motor on the supporting part, in order to set up piezoelectric motor in transmission structure's inner space, make the more function of integration in the finite space that transmission structure encloses, and then improve touch-control feedback module's miniaturization degree, suspension portion comparatively weakly warp can the piezoelectric motor perception, so that pressure perception sensitivity is higher, and make the touch pad can produce less displacement along range upon range of direction, improve touch-control feedback's sensitivity.
Description
The present invention claims priority of chinese patent application with application number 201910803936.0, entitled "touch feedback module and touch device" filed by the chinese office of acceptance in 2019, 08/28/month, and a portion of the content of which is incorporated herein by reference.
Technical Field
The present invention relates to the field of touch technologies, and in particular, to a touch feedback module and a touch device.
Background
For the touch devices needing touch feedback and pressure sensing, such as notebook computers, mobile phones and vehicle-mounted equipment, in order to realize the effects of touch feedback and pressure sensing, a touch feedback module is arranged in the touch device, and the touch feedback module is developing towards the direction of integrated type and no mechanical keys. The traditional touch feedback mostly adopts a linear motor technology, and the pressure sensing mostly adopts a strain gauge technology. Along with the development discovery of science and technology, piezoelectric material has the function that provides touch-control feedback and pressure perception simultaneously, consequently, is applied to piezoelectric material in the touch-control feedback module, can obtain better touch-control feedback and pressure perception's effect. However, the touch feedback module cannot achieve better effects in terms of miniaturization and sensitivity.
Disclosure of Invention
Therefore, it is necessary to provide a touch feedback module and a touch device for solving the problems of miniaturization and poor sensitivity.
A touch feedback module includes: the suspension wing plate comprises a bearing part and a suspension wing part, and the suspension wing part is arranged around the bearing part and connected to the bearing part; a transfer structure disposed at the flap portion; at least one piezoelectric motor, each of which is arranged on the bearing part; the touch pad is erected on one side, far away from the suspension wing plate, of the transfer structure.
In the touch feedback module, the touch pad is erected on the suspension wing plate through the transmission structure, the suspension wing part is arranged around the bearing part and connected to the bearing part, the bearing part is provided with the piezoelectric motor, and the suspension wing part is provided with the transmission structure so as to arrange the piezoelectric motor in the internal space of the transmission structure, so that more functions are integrated in the limited space surrounded by the transmission structure, and the miniaturization degree of the touch feedback module is further improved; the external force for pressing the touch pad transfers the force to the suspension wing part through the transfer structure, so that the suspension wing part is bent and deformed, and the piezoelectric motor is driven to generate voltage output through the positive piezoelectric effect, because the piezoelectric motor is arranged in the inner space of the transmission structure, the situation that the deformation of the suspension wing plate is not easy to be sensed by the piezoelectric motor after a long transmission process is avoided, when the force for pressing the touch pad is small, the suspension part is slightly deformed to be sensed by the piezoelectric motor, so that the pressure sensing sensitivity is higher, at the moment, the piezoelectric motor receives the voltage signal and generates the force action through the inverse piezoelectric effect, thereby driving the suspension wing plate to generate bending deformation, transmitting the vibration to the touch pad through the transmission structure, because the piezoelectric motor is arranged in the inner space of the transmission structure, the touch pad can generate smaller displacement along the stacking direction, and the sensitivity of touch feedback is improved.
In one embodiment, when the number of the piezoelectric motors is plural, the plural piezoelectric motors are arranged in a ring structure, and when the number of the piezoelectric motors is one, the piezoelectric motors are in a ring structure; the central line of the annular structure is superposed with the central line of the suspension wing plate, so that functional components are integrated in the hollow area of the annular structure, more functions can be integrated in the limited space surrounded by the transmission structure, and the miniaturization degree of the touch control feedback module is further improved.
In one embodiment, the side of the suspension wing plate facing the touch plate is provided with at least one limiting structure, the limiting structure is arranged at a distance from the touch plate, when the piezoelectric motor is arranged on the side of the bearing part facing the touch plate, the at least one limiting structure is arranged in the hollow area of the annular structure, and the height of the limiting structure is higher than that of the piezoelectric motor, so that the piezoelectric motor is integrated in the space surrounded by the touch plate, the transmission structure and the suspension wing plate, the limiting structure is integrated in the hollow area of the annular structure, and the limiting effect on the vibration amplitude of the touch plate relative to the suspension wing plate can be realized through a smaller limiting structure.
In one embodiment, a supporting structure is arranged on one side of the bearing part, which is far away from the touch pad, and when the piezoelectric motor is arranged on one side of the bearing part, which is far towards the touch pad, the supporting structure is arranged in the hollow area of the annular structure, so that the supporting structure is integrated in the hollow area of the annular structure, and the supporting and limiting effects on the suspension wing plate can be realized through a smaller supporting structure.
In one embodiment, the supporting structure is at least one supporting column arranged on one side of the bearing part, which faces away from the touch pad, each supporting column abuts against the surface of the bearing part, which faces away from the touch pad, and is locked on the bearing part, and the supporting structure can provide support for the suspension wing plate and limit the vibration amplitude of the suspension wing plate through the arrangement of the supporting columns.
In one embodiment, the support structure is at least one protrusion provided on a surface of the carrier portion facing away from the touch pad. The suspended wing plate can be mounted to other members by the projecting portion to support the suspended wing plate and to be able to limit the vibration amplitude of the suspended wing plate.
In one embodiment, in the stacking direction of the suspension plate and the transmission structure, the edge of the suspension plate is flush with the edge of the transmission structure, so as to reduce the area of the suspension plate which cannot be effectively deformed when pressed, and further effectively improve the miniaturization degree of the touch feedback module.
In one embodiment, the suspension plate and the transmission structure are an integrated structure, so as to further improve the miniaturization degree of the touch feedback module.
In one embodiment, in the stacking direction of the suspension plate and the transfer structure, the edge of the touch pad is flush with the edge of the transfer structure, so as to reduce the area of the touch pad where the transfer structure cannot generate effective acting force when pressed, and further effectively improve the miniaturization degree of the touch feedback module.
In one embodiment, the touch pad and the transmission structure are an integrated structure, so as to further improve the miniaturization degree of the touch feedback module.
In one embodiment, the touch feedback module further comprises a driving circuit board, wherein the driving circuit board is arranged on the suspension wing plate, electrically connected with the piezoelectric motor, and used for providing a voltage signal for the piezoelectric motor and transmitting the voltage signal so as to realize normal operation of the inverse piezoelectric effect and the positive piezoelectric effect.
In one embodiment, the suspension wing plate is provided with a plurality of through holes, and the driving circuit board is arranged on the surface of the suspension wing plate facing away from the piezoelectric motor and is electrically connected with the piezoelectric motor through a conductive piece positioned in the through holes so as to integrate the piezoelectric motor, the suspension wing plate and the driving circuit board together.
In one embodiment, the suspension plate and the driving circuit board are of an integrated structure, so that the miniaturization degree of the touch feedback module is further improved.
In one embodiment, the suspension wing plate is made of metal alloy or engineering plastic. The suspension wing plate is made of a material with the characteristics of light weight and high strength, so that the quality of the whole structure is reduced, and the light and thin degree of the touch feedback module is improved.
A touch device includes the touch feedback module according to any of the above embodiments.
In the touch device, the touch feedback module can integrate more functions in a limited space surrounded by the transmission structure, so that the miniaturization degree of the touch feedback module is improved; and the relatively weak deformation of the overhang part can be sensed by the piezoelectric motor, the touch pad can generate relatively small displacement along the stacking direction, and the sensitivity of pressure sensing and touch feedback is improved, so that the touch device with the touch feedback module is relatively high in miniaturization degree and sensitivity.
Drawings
Fig. 1 is a schematic cross-sectional view of a touch feedback module according to an embodiment of the invention;
FIG. 2 is a schematic cross-sectional view of a touch feedback module according to another embodiment of the present invention;
FIG. 3 is a schematic cross-sectional view illustrating a touch feedback module according to another embodiment of the present invention;
FIG. 4 is a schematic cross-sectional view of a touch feedback module according to still another embodiment of the present invention;
FIG. 5 is a schematic cross-sectional view of a touch feedback module according to another embodiment of the present invention;
FIG. 6 is a schematic cross-sectional view illustrating a touch feedback module according to another embodiment of the present invention;
FIG. 7 is a schematic cross-sectional view illustrating a touch feedback module according to still another embodiment of the present invention;
FIG. 8 is a schematic cross-sectional view illustrating a touch feedback module according to another embodiment of the present invention;
FIG. 9 is a schematic cross-sectional view illustrating a touch feedback module according to another embodiment of the present invention;
FIG. 10 is a schematic cross-sectional view illustrating a touch feedback module according to still another embodiment of the present invention;
FIG. 11 is a schematic diagram illustrating vibration of a touch feedback module according to another embodiment of the present invention;
FIG. 12 is a schematic cross-sectional view illustrating a touch feedback module according to another embodiment of the present invention;
FIG. 13 is a schematic cross-sectional view illustrating a touch feedback module according to another embodiment of the present invention;
fig. 14 is a schematic cross-sectional view of a touch feedback module according to still another embodiment of the invention.
Wherein:
100. touch feedback module 110, suspension plate 111 and suspension part
112. Bearing part 113, convex part 120 and transmission structure
121. Accommodating part 122, hollow area 130, touch panel
140. Piezoelectric motor 150, limit structure 160 and support column
170. Drive circuit board 180, conductive member
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
It will be understood that when an element is referred to as being "secured 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 defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1, an embodiment of the invention provides a touch feedback module 100, which includes a suspension plate 110, a transmission structure 120, a touch pad 130, and at least one piezoelectric motor 140, wherein:
the suspension wing plate 110 includes a bearing portion 111 and a suspension wing portion 112, the suspension wing portion 112 is disposed around the bearing portion 111, and the suspension wing portion 112 is connected to the bearing portion 111, when the suspension wing plate is specifically disposed, the bearing portion 111 may be a circular plate, the suspension wing portion 112 is a plurality of uniformly disposed support plates extending around the circumference, the bearing portion 111 may also be a rectangular parallelepiped structure having an XY-symmetric structure about a center line of the suspension wing plate 110, and the specific structure of the suspension wing plate 110 is not limited to the above-mentioned form; the flap part 112 may be connected to the bearing part 111 by an elastic adhesive such as epoxy AB adhesive or UV adhesive, but the connection method is not limited to the above elastic adhesive, and as shown in fig. 2, the bearing part 111 and the flap part 112 may be an integral structure, and the flap part 112 protrudes from the side of the bearing part 111 and extends along a direction perpendicular to the center line XY of the flap plate 110;
the transmission structure 120 is disposed on the suspension portion 112, and when the transmission structure 120 is specifically disposed, the transmission structure 120 may be made of foam, rubber, plastic, or other materials with elasticity, and the hardness is less than 80A, so as to eliminate the influence caused by the deformation of the suspension portion 110. The transmission structure 120 may also be made of a rigid material, and then elastic glue such as epoxy AB glue, UV glue, etc. is disposed between the transmission structure 120 and the touch panel 130 to achieve connection, so that the transmission structure 120 has a good transmission effect, and the elastic glue between the transmission structure 120 and the touch panel 130 has certain elasticity to eliminate the influence caused by deformation of the suspension plate 110, and the transmission structure 120 may be in a rectangular parallelepiped shape, a square shape, a cylindrical shape, etc., but is not limited thereto, and may also be in other shapes;
at least one piezoelectric motor 140, each piezoelectric motor 140 is disposed on the bearing portion 111, when the piezoelectric motor 140 is specifically disposed, the number of the piezoelectric motors 140 may be one, two, three, or more than three, the piezoelectric motor 140 may be disposed on a surface of the bearing portion 111 facing the touch panel 130, or on a surface of the bearing portion 111 facing away from the touch panel 130, or a part of the piezoelectric motor 140 may be disposed on a surface of the bearing portion 111 facing the touch panel 130, and another part of the piezoelectric motor 140 is disposed on a surface of the bearing portion 111 facing away from the touch panel 130; the piezoelectric motor 140 may be connected to the suspended wing plate 110 by a mechanical method, such as a snap connection, a male-female connection, or a screw connection, or by an adhesive method, such as an OCA optical adhesive, an OCR optical adhesive, or a double-sided adhesive;
the touch pad 130 is erected on the side of the transmission structure 120 far from the pendant plate 110, and when the touch pad 130 is specifically disposed, the touch pad 130 may be connected to the transmission structure 120 by an elastic adhesive such as an epoxy AB adhesive or a UV adhesive, but the connection manner is not limited to the above elastic adhesive, the touch pad 130, the transmission structure 120 and the pendant plate 110 form an accommodating portion 121, the accommodating portion 121 is a space where the touch pad 130 vibrates downwards, and when the piezoelectric motor 140 is located on the side of the bearing portion 111 near the touch pad 130, a certain distance is provided between the touch pad 130 and the piezoelectric motor 140, the distance is used for limiting the vibration of the touch pad 130, and is greater than the amplitude of the downward vibration of the touch pad 130, so as to prevent the.
In the touch feedback module 100, the touch pad 130 is suspended on the suspension plate 110 through the transmission structure 120, the suspension portion 112 is disposed around the bearing portion 111, the suspension portion 112 is connected to the bearing portion 111, the piezoelectric motor 140 is disposed on the bearing portion 111, and the transmission structure 120 is disposed on the suspension portion 112, so as to dispose the piezoelectric motor 140 in the internal space of the transmission structure 120, so that more functions are integrated in the limited space surrounded by the transmission structure 120, thereby improving the miniaturization degree of the touch feedback module 100; the external force pressing the touch pad 130 transfers the force to the suspension portion 112 through the transfer structure 120, resulting in bending deformation of the suspension portion 112, and further driving the piezoelectric motor 140 to generate voltage output through a positive piezoelectric effect, because the piezoelectric motor 140 is disposed in the internal space of the transfer structure 120, so as to avoid the situation that deformation of the suspension plate 110 is not easily sensed by the piezoelectric motor 140 through a long transfer process, when the force pressing the touch pad 130 is small, the relatively weak deformation of the suspension portion 112 can be sensed by the piezoelectric motor 140, so that the pressure sensing sensitivity is high, at this time, the piezoelectric motor 140 receives the voltage signal, and generates a force effect through a reverse piezoelectric effect, and further driving the suspension plate 110 to generate bending deformation, so as to transfer vibration to the touch pad 130 through the transfer structure 120, because the piezoelectric motor 140 is disposed in the internal space of the transfer structure 120, the touch pad 130 can generate a small displacement along the stacking, and the sensitivity of touch feedback is improved.
In order to further improve the degree of miniaturization of the touch feedback module 100, as shown in fig. 3, in a preferred embodiment, when the number of the piezoelectric motors 140 is plural, the plural piezoelectric motors 140 are disposed on the supporting portion in a surrounding manner and arranged in a ring structure, a center line of the ring structure coincides with a center line of the suspended wing plate 110, a hollow region 122 is formed on the supporting portion corresponding to the inside of the ring structure, and similarly, a center line of the hollow region 122 coincides with a center line XY of the suspended wing plate 110, and the number of the piezoelectric motors 140 may be two, three, four, or more than four; as shown in fig. 4, when the number of the piezoelectric motors 140 is one, the piezoelectric motor 140 has a ring-shaped structure, and the piezoelectric motor 140 has a hollow region 122 inside, and the center line of the ring-shaped structure coincides with the center line XY of the suspended wing plate 110.
In the touch feedback module 100, the plurality of piezoelectric motors 140 are arranged in an annular structure, or when only one piezoelectric motor 140 is provided, the piezoelectric motor 140 with the annular structure is selected to form the hollow region 122 inside the piezoelectric motor, so as to provide a position for the arrangement of other components, so as to integrate functional components in the hollow region 122 with the annular structure, and thus more functions can be integrated in the limited space surrounded by the transmission structure 120, and further improve the miniaturization degree of the touch feedback module 100.
In order to limit the vibration amplitude of the touch pad 130 relative to the pendant plate 110, specifically, as shown in fig. 5 and 6, the pendant plate 110 is provided with at least one limit structure 150 on a side facing the touch pad 130, the limit structure 150 is spaced apart from the touch pad 130, when the piezoelectric motor 140 is disposed on a side of the bearing part 111 facing the touch pad 130, the at least one limit structure 150 is disposed in the hollow region 122 of the ring structure, and the height of the limit structure 150 is higher than that of the piezoelectric motor 140.
In the touch feedback module 100, the limiting structure 150 is disposed on the side of the pendant plate 110 facing the touch pad 130, so that the vibration amplitude of the touch pad 130 is limited by the limiting structure 150. And a certain distance is formed between the limiting structure 150 and the touch pad 130, so that the touch pad 130 can be prevented from being mechanically damaged due to the fact that the limiting structure 150 is touched in the downward vibration process, and the downward vibration amplitude of the touch pad 130 is increased. The piezoelectric motor 140 is disposed on the side of the bearing part 111 facing the touch pad 130, so that the piezoelectric motor 140 is integrated in the accommodating part 121 surrounded by the touch pad 130, the transmission structure 120 and the suspension plate 110, at this time, the limit structure 150 is disposed in the hollow area 122, so as to integrate the limit function in the hollow area 122 of the ring structure, and the height of the limit structure 150 is higher than that of the piezoelectric motor 140, so as to prevent the touch pad 130 from directly colliding with the piezoelectric motor 140 to cause mechanical damage.
In order to realize the same amplitude of the touch pad 130, the thickness of the limiting structure 150 and the thickness of the transmission structure 120 in the touch feedback module 100 in the direction parallel to the center line XY of the suspended wing plate 110 are smaller than that of the limiting structure 150 disposed on the surface of the piezoelectric motor 140 away from the bearing portion 111, that is, the smaller limiting structure 150 can limit the vibration amplitude of the touch pad 130 relative to the suspended wing plate 110. When the positioning structure is specifically arranged, the limiting structure 150 is made of elastic materials such as foam, rubber and plastics, and the hardness is less than 80A. By the arrangement, the buffer performance of the limiting structure 150 can be improved, and the touch pad 130 is prevented from being mechanically damaged when contacting the limiting structure 150. For example, an EVA perforated plate (ethylene-vinyl acetate copolymer) having a hardness of 30A to 50A, the length, width, and height dimensions of 6mm by 60mm by 0.5mm, may be used.
In order to limit and support the suspension plate 110, as shown in fig. 7, 8, 9 and 10, specifically, a support structure is disposed on a side of the bearing portion 111 away from the touch pad 130, and when the piezoelectric motor 140 is disposed on a side of the bearing portion 111 facing the touch pad 130, the support structure is disposed in the hollow region 122 of the ring structure, and it should be noted that the limit structure 150 may also be disposed in the touch feedback module 100, and a center line of the limit structure 150 coincides with a center line of the suspension plate 110.
In the touch feedback module 100, when the same amplitude of the suspended wing plate 110 is realized, compared with the case where the piezoelectric motor 140 has no hollow region 122, and the support structure is disposed outside the piezoelectric motor 140 without the hollow region 122, the thickness of the support structure in the touch feedback module 100 in the direction parallel to the center line XY of the suspended wing plate 110 is smaller, that is, the support and limit functions of the suspended wing plate 110 can be realized by the smaller support structure.
The structural form of the supporting structure is various, as shown in fig. 7 and fig. 8, more specifically, the supporting structure is at least one supporting column 160 disposed on a side of the carrying portion 111 facing away from the touch pad 130, each supporting column 160 abuts against a surface of the carrying portion 111 facing away from the touch pad 130, and each supporting column 160 is locked to the carrying portion 111.
In the touch feedback module 100, the supporting column 160 is used for supporting the suspended wing plate 110, and provides a vibration fulcrum for the suspended wing plate 110, and the supporting column 160 can provide a support for the whole structure, and meanwhile, an included angle exists between the suspended wing part 112 of the suspended wing plate 110 and the supporting column 160, and because the two suspended wing parts 112 are limited by the included angle when vibrating downwards, the supporting column 160 limits the vibration amplitude of the two side edges of the suspended wing plate 110. In a specific arrangement, the supporting column 160 can be locked to the suspension portion 112 by glue bonding, screw locking, or male and female snap. When the number of the support columns 160 is 1, the center line of the support columns 160 coincides with the center line XY of the flap part 112. When the number of the supporting columns 160 is plural, the plurality of supporting columns 160 are uniformly arranged, and the center line of each supporting column 160 is parallel to the center line XY of the suspended wing plate 110, or the plurality of supporting columns 160 form a symmetrical structure with respect to the center line XY of the suspended wing plate 110.
The structural form of the support structure is various, as shown in fig. 9 and 10, and more specifically, the support structure is at least one protrusion 113 provided on the surface of the bearing part 111 facing away from the touch pad 130.
In the touch feedback module 100, the suspension plate 110 can be mounted to other members through the protruding portion 113, and is used for supporting the suspension plate 110, so as to provide a vibrating fulcrum for the suspension plate 110, and the protrusion 113 can provide a support for the whole structure, and meanwhile, an included angle exists between the suspension portion 112 of the suspension plate 110 and the protruding portion 113, and because the two suspension portions 112 vibrate downwards, the included angle is limited, and therefore, the protruding portion 113 limits the vibration amplitude of the two side edges of the suspension plate 110. In a specific arrangement, when the number of the protruding portions 113 is 1, the center line of the protruding portion 113 coincides with the center line XY of the flap portion 112. When the number of the convex portions 113 is plural, the plural convex portions 113 are uniformly arranged, and the center line of each convex portion 113 is parallel to the center line XY of the suspended wing plate 110, or the plural convex portions 113 constitute a symmetrical structure with respect to the center line XY of the suspended wing plate 110.
The specific working scene is as follows:
pressure sensing: as shown in fig. 11, when a finger presses the touch pad 130, the pressing force F is transmitted to the transmission structure 120 through the touch pad 130, and the transmission structure 120 uniformly transmits the force to the suspension plate 110, so that the suspension plate 110 is bent and deformed, and the piezoelectric motor 140 is driven to generate and output a voltage signal through a positive piezoelectric effect. Theoretical calculation and finite element simulation prove that when the force F for pressing the touch pad 130 is small, the piezoelectric motor 140 can sense the weak deformation of the suspension part 112, so that the pressure sensing sensitivity is high. It should be noted that, pressure sensing is used for sensing different pressure levels, so as to implement different touch controls, for example, if pressure is large, a right key is indicated, and if pressure is small, a left key is indicated. And before the pressure sensing, touch sensing for determining whether a finger touches or not is further included.
Touch feedback: as shown in fig. 11, a voltage signal is applied to the piezoelectric motor 140, the piezoelectric motor 140 generates an inverse piezoelectric effect under the excitation of the voltage, and drives the suspended wing plate 110 to generate bending deformation, and the vibration is transmitted to the touch panel 130 through the transmission structure 120, so that the touch panel 130 generates overall up-and-down vibration, and the piezoelectric motor 140 is disposed in the internal space of the transmission structure 120, so that the touch panel 130 can generate a small displacement Δ s along the stacking direction, and the sensitivity of touch feedback is improved.
In a preferred embodiment, in the stacking direction of the suspended wing plate 110 and the transmission structure 120, the edge of the suspended wing plate 110 is flush with the edge of the transmission structure 120, as shown in fig. 1 to 11, a line connecting the left and right sides is defined as a first direction Z, and the extension length of the suspended wing plate 110 parallel to the first direction Z is equal to the extension length of the transmission structure 120 parallel to the first direction Z. Further, the flap plate 110 and the transfer structure 120 are an integral structure.
In the touch feedback module 100, since the portion of the suspended wing plate 110 beyond the edge of the transmitting structure 120 is not effectively deformed when the touch pad 130 presses, the area of the suspended wing plate 110 that is not effectively deformed when the touch pad is pressed can be reduced by aligning the edge of the suspended wing plate 110 with the edge of the transmitting structure 120, and the miniaturization degree of the touch feedback module 100 is effectively improved on the basis of ensuring the same touch feedback effect. As shown in fig. 12, the suspension plate 110 and the transmission structure 120 may be configured as an integrated structure to further improve the miniaturization degree of the touch feedback module 100 and reduce the manufacturing process and the assembling process.
In a preferred embodiment, in the stacking direction of the pendant plate 110 and the transfer structure 120, the edge of the touch pad 130 is flush with the edge of the transfer structure 120, as shown in fig. 1 to 11, a line connecting the left and right sides is defined as a first direction Z, and the extension length of the touch pad 130 parallel to the first direction Z is equal to the extension length of the transfer structure 120 parallel to the first direction Z. Further, the touch panel 130 and the transmission structure 120 are a single structure.
In the touch feedback module 100, since the portion of the touch panel 130 beyond the transmitting structure 120 cannot make the transmitting structure 120 generate an effective acting force, the edge of the touch panel 130 is flush with the edge of the transmitting structure 120, so as to reduce the area of the touch panel 130 that cannot make the transmitting structure 120 generate an effective acting force when pressed, thereby effectively improving the miniaturization degree of the touch feedback module 100. As shown in fig. 13, the transmitting structure 120 may be integrally formed with the touch panel 130 to further improve the miniaturization degree of the touch feedback module 100 and to reduce the manufacturing process and the assembling process.
In a preferred embodiment, the touch feedback module 100 further includes a driving circuit board 170, wherein the driving circuit board 170 is disposed on the suspension plate 110 and electrically connected to the piezoelectric motor 140, and is used for providing a voltage signal to the piezoelectric motor 140 and transmitting the voltage signal, so as to achieve normal operation of the inverse piezoelectric effect and the positive piezoelectric effect.
In the touch feedback module 100, the driving circuit board 170 is connected to the piezoelectric motor 140 via an electrode wire, the driving circuit board 170 applies a voltage signal to the piezoelectric motor 140 via the electrode wire to realize vibration of the suspension plate 110 and the touch pad 130 in the touch feedback, and the pressure sensing module transmits a force signal to the piezoelectric motor 140 via the touch pad 130 and the suspension plate 110 to generate a voltage signal, and transmits the voltage signal to the driving circuit board via the electrode wire.
Specifically, the suspension plate 110 has a plurality of through holes, the driving circuit board 170 is disposed on a surface of the suspension plate 110 facing away from the piezoelectric motor 140, and the driving circuit board 170 is electrically connected to the piezoelectric motor 140 through a conductive member 180 located in the through holes to integrate the piezoelectric motor 140, the suspension plate 110, and the driving circuit board 170 together. Further, the suspension plate 110 and the driving circuit board 170 are integrated to further improve the miniaturization degree of the touch feedback module 100.
In the touch feedback module 100, the driving circuit board 170 may be a flexible circuit board, the flexible circuit board is disposed on one side of the suspension plate 110 away from the piezoelectric motor 140, a plurality of through holes are disposed on the suspension plate 110, and a conductive member 180 is disposed in the through holes to electrically connect the flexible circuit board and the piezoelectric motor 140, specifically, the conductive member 180 may be a conductive material injected into the through holes, such as conductive paste like silver paste, carbon paste, or a conductive wire coated on an inner wall of the through holes. And at this moment, the overhang plate 110 also plays a role in increasing the strength of the flexible circuit board, and certainly, the driving circuit board 170 is not limited to the flexible circuit board, and may also be other structural members capable of meeting the requirements, for example, the driving circuit board 170 may be placed on the periphery of the whole structure and integrated with the main board.
In order to further increase the miniaturization degree of the touch feedback module, in a preferred embodiment, the suspension plate 110 may be made of a metal alloy or an engineering plastic.
In the touch feedback module 100, since the metal alloy has the characteristics of light weight and high strength, and since the engineering plastic has the advantages of strong rigidity, good mechanical property, and the like, the integral structure of the suspension wing plate 110 made of the metal alloy or the engineering plastic has light weight and strong mechanical strength, structural members such as a transmission structure, a piezoelectric motor, and the like arranged on the suspension wing plate can be better supported in a thin thickness, so that the supporting reliability is improved, the service life of the touch feedback module 100 is prolonged, and the lightness, thinness and miniaturization degree of the touch feedback module 100 are improved; of course, the material for preparing the suspension plate 110 is not limited to metal alloy and engineering plastic, but can be bakelite, glass, stainless steel, etc.
The embodiment of the invention further provides a touch device, which includes the touch feedback module 100 according to any of the above embodiments. The touch device includes, but is not limited to, a notebook computer, a mobile phone, a vehicle-mounted device, and other devices requiring 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, which is also called a PC touch feedback module.
In the touch device, the touch feedback module 100 can integrate more functions in the limited space surrounded by the transmission structure 120, so as to improve the miniaturization degree of the touch feedback module 100; in addition, the relatively weak deformation of the overhang portion 112 can be sensed by the piezoelectric motor 140, and the touch pad 130 can generate a relatively small displacement in the stacking direction, thereby improving the sensitivity of pressure sensing and touch feedback, and thus the degree of miniaturization and the sensitivity of the touch device having the touch feedback module 100 are high.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (15)
1. A touch feedback module, comprising:
the suspension wing plate comprises a bearing part and a suspension wing part, and the suspension wing part is arranged around the bearing part and connected to the bearing part;
a transfer structure disposed at the flap portion;
at least one piezoelectric motor, each of which is arranged on the bearing part;
the touch pad is erected on one side, far away from the suspension wing plate, of the transfer structure.
2. The touch feedback module of claim 1,
when the number of the piezoelectric motors is multiple, the multiple piezoelectric motors are arranged in an annular structure, and when the number of the piezoelectric motors is one, the piezoelectric motors are in the annular structure;
the central line of the annular structure is coincident with the central line of the suspension wing plate.
3. The touch feedback module according to claim 2, wherein the suspension plate is provided with at least one position-limiting structure on a side facing the touch pad, the position-limiting structure is spaced from the touch pad, and when the piezoelectric motor is disposed on a side of the carrying portion facing the touch pad, the at least one position-limiting structure is disposed in the hollow region of the ring structure and has a height higher than that of the piezoelectric motor.
4. The touch feedback module according to claim 2, wherein a supporting structure is disposed on a side of the carrying portion facing away from the touch pad, and the supporting structure is disposed in a hollow region of the ring structure when the piezoelectric motor is disposed on a side of the carrying portion facing toward the touch pad.
5. The touch feedback module according to claim 2, wherein the supporting structure is at least one supporting column disposed on a side of the carrying portion away from the touch pad, and each supporting column abuts against a surface of the carrying portion away from the touch pad and is locked to the carrying portion.
6. The touch feedback module of claim 5, wherein the support structure is at least one protrusion on a surface of the carrier facing away from the touch pad.
7. The touch feedback module of claim 1, wherein an edge of the flap plate is flush with an edge of the transmission structure in a stacking direction of the flap plate and the transmission structure.
8. The touch feedback module of claim 7, wherein the suspension plate and the transmission structure are an integral structure.
9. The touch feedback module of claim 1, wherein an edge of the touch pad is flush with an edge of the transmitting structure in a stacking direction of the suspension plate and the transmitting structure.
10. The touch feedback module of claim 9, wherein the touch pad and the transmitting structure are an integral structure.
11. The touch feedback module of claim 1, further comprising a driving circuit board disposed on the suspension plate and electrically connected to the piezoelectric motor.
12. The touch feedback module of claim 11, wherein the suspension plate has a plurality of through holes, and the driving circuit board is disposed on a surface of the suspension plate facing away from the piezoelectric motor and electrically connected to the piezoelectric motor through a conductive member located in the through holes.
13. The touch feedback module of claim 11 or 12, wherein the suspension plate and the driving circuit board are of an integral structure.
14. The touch feedback module of claim 1, wherein the suspension plate is made of a metal alloy or an engineering plastic.
15. A touch device comprising the touch feedback module according to any one of claims 1 to 14.
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| CN201922071452.XU Expired - Fee Related CN210776587U (en) | 2019-08-28 | 2019-11-26 | Touch feedback module and touch device |
| CN201911175848.7A Pending CN112445331A (en) | 2019-08-28 | 2019-11-26 | Touch feedback module and touch device |
| CN201922070190.5U Expired - Fee Related CN211236846U (en) | 2019-08-28 | 2019-11-26 | Touch feedback module and touch device |
| CN201922073455.7U Expired - Fee Related CN210776588U (en) | 2019-08-28 | 2019-11-26 | Touch feedback module and touch device |
| CN201911175819.0A Pending CN112445329A (en) | 2019-08-28 | 2019-11-26 | Touch feedback module and touch device |
| CN201911175846.8A Pending CN112445330A (en) | 2019-08-28 | 2019-11-26 | Touch feedback module and touch device |
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| CN201922071452.XU Expired - Fee Related CN210776587U (en) | 2019-08-28 | 2019-11-26 | Touch feedback module and touch device |
| CN201911175848.7A Pending CN112445331A (en) | 2019-08-28 | 2019-11-26 | Touch feedback module and touch device |
| CN201922070190.5U Expired - Fee Related CN211236846U (en) | 2019-08-28 | 2019-11-26 | Touch feedback module and touch device |
| CN201922073455.7U Expired - Fee Related CN210776588U (en) | 2019-08-28 | 2019-11-26 | Touch feedback module and touch device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113900547A (en) * | 2021-09-06 | 2022-01-07 | 歌尔光学科技有限公司 | Ultrasonic wave and piezoelectric touch device and intelligent terminal |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112558780A (en) * | 2020-12-23 | 2021-03-26 | 江西欧迈斯微电子有限公司 | Touch feedback module and electronic equipment |
| TW202243295A (en) * | 2021-04-22 | 2022-11-01 | 達運精密工業股份有限公司 | Vibration module and method for manufacturing the same |
| CN113983940B (en) * | 2021-08-06 | 2024-12-27 | 西安理工大学 | Device and method for detecting thermally induced micro strain of energy storage batteries using F-P/FBG multiplexing technology |
| CN113867552A (en) * | 2021-10-20 | 2021-12-31 | 广东虹勤通讯技术有限公司 | Global pressing computer touch pad |
| CN114237410A (en) * | 2021-12-30 | 2022-03-25 | 深圳莱宝高科技股份有限公司 | Touch control panel and electronic equipment |
| CN119546165A (en) * | 2023-08-29 | 2025-02-28 | 北京小米移动软件有限公司 | Piezoelectric module and electronic equipment |
| CN117331444B (en) * | 2023-10-13 | 2024-07-30 | 深圳市亚米拉电子科技有限公司 | Novel pressure sensing structure with pressure sensing feedback function and pressure sensing method |
| TWI866756B (en) * | 2024-01-24 | 2024-12-11 | 久正光電股份有限公司 | Haptic feedback device |
Family Cites Families (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101146530B1 (en) * | 2005-08-30 | 2012-05-25 | 삼성전자주식회사 | Touch panel having a function of speaker |
| CN101206548B (en) * | 2006-12-19 | 2012-01-11 | 北京汇冠新技术股份有限公司 | Infrared touch panel triggered using touch force and detecting method thereof |
| US8633916B2 (en) * | 2009-12-10 | 2014-01-21 | Apple, Inc. | Touch pad with force sensors and actuator feedback |
| KR101080641B1 (en) * | 2010-06-30 | 2011-11-08 | 주식회사 하이소닉 | Handheld terminal with haptic module |
| CN203054722U (en) * | 2012-12-13 | 2013-07-10 | 中航华东光电有限公司 | Three-dimensional vibration feedback device and displayer |
| US10578499B2 (en) * | 2013-02-17 | 2020-03-03 | Microsoft Technology Licensing, Llc | Piezo-actuated virtual buttons for touch surfaces |
| CN203840397U (en) * | 2014-04-11 | 2014-09-17 | 瑞声声学科技(深圳)有限公司 | Piezoelectric module and electronic equipment using the piezoelectric module |
| CN205959176U (en) * | 2016-06-17 | 2017-02-15 | 深圳纽迪瑞科技开发有限公司 | Touch piece is with pressure sensing structure and touch devices |
| CN107515688B (en) * | 2016-06-17 | 2024-04-19 | 深圳纽迪瑞科技开发有限公司 | Pressure sensing structure for touch piece and touch device |
| CN206181544U (en) * | 2016-10-12 | 2017-05-17 | 深圳市柔宇科技有限公司 | Touch -control structure |
| CN206532267U (en) * | 2017-03-10 | 2017-09-29 | 信利光电股份有限公司 | A kind of electronic equipment and its vibration Trackpad |
| KR102384033B1 (en) * | 2017-03-20 | 2022-04-06 | 엘지전자 주식회사 | Display Apparatus |
| US10678364B2 (en) * | 2017-03-23 | 2020-06-09 | Immersion Corporation | System for providing sensor and actuation functionality for touch input device |
| US10622538B2 (en) * | 2017-07-18 | 2020-04-14 | Apple Inc. | Techniques for providing a haptic output and sensing a haptic input using a piezoelectric body |
| KR102363707B1 (en) * | 2017-08-03 | 2022-02-17 | 삼성전자주식회사 | An electronic apparatus comprising a force sensor and a method for controlling electronic apparatus thereof |
| FI128874B (en) * | 2017-10-03 | 2021-02-15 | Aito Bv | Piezo haptic feedback device with integrated support |
| US10545581B2 (en) * | 2017-10-05 | 2020-01-28 | Advanced Semiconductor Engineering, Inc. | Semiconductor package device |
| US10345910B1 (en) * | 2018-06-15 | 2019-07-09 | Immersion Corporation | Haptic actuator assembly with a spring pre-load device |
| CN108762582A (en) * | 2018-07-27 | 2018-11-06 | 北京小米移动软件有限公司 | Touch control component and electronic equipment |
-
2019
- 2019-11-26 CN CN201922071417.8U patent/CN211375552U/en not_active Expired - Fee Related
- 2019-11-26 CN CN201922071452.XU patent/CN210776587U/en not_active Expired - Fee Related
- 2019-11-26 CN CN201911175848.7A patent/CN112445331A/en active Pending
- 2019-11-26 CN CN201922070190.5U patent/CN211236846U/en not_active Expired - Fee Related
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- 2019-11-26 WO PCT/CN2019/121070 patent/WO2021036054A1/en not_active Ceased
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113900547A (en) * | 2021-09-06 | 2022-01-07 | 歌尔光学科技有限公司 | Ultrasonic wave and piezoelectric touch device and intelligent terminal |
Also Published As
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| CN112445331A (en) | 2021-03-05 |
| CN211236846U (en) | 2020-08-11 |
| WO2021036051A1 (en) | 2021-03-04 |
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| WO2021036054A1 (en) | 2021-03-04 |
| CN112445330A (en) | 2021-03-05 |
| WO2021036052A1 (en) | 2021-03-04 |
| CN210776587U (en) | 2020-06-16 |
| WO2021036053A1 (en) | 2021-03-04 |
| CN211375552U (en) | 2020-08-28 |
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Address after: 330096 No.699 Tianxiang North Avenue, Nanchang hi tech Industrial Development Zone, Nanchang City, Jiangxi Province Applicant after: Jiangxi OMS Microelectronics Co.,Ltd. Address before: 330096 No.699 Tianxiang North Avenue, Nanchang hi tech Industrial Development Zone, Nanchang City, Jiangxi Province Applicant before: OFilm Microelectronics Technology Co.,Ltd. Address after: 330096 No.699 Tianxiang North Avenue, Nanchang hi tech Industrial Development Zone, Nanchang City, Jiangxi Province Applicant after: OFilm Microelectronics Technology Co.,Ltd. Address before: 330029 No. 1189 Jingdong Avenue, Nanchang high tech Zone, Jiangxi Applicant before: NANCHANG OFILM BIO-IDENTIFICATION TECHNOLOGY Co.,Ltd. |
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