CN112445330A - Touch feedback module and touch device - Google Patents
Touch feedback module and touch device Download PDFInfo
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- CN112445330A CN112445330A CN201911175846.8A CN201911175846A CN112445330A CN 112445330 A CN112445330 A CN 112445330A CN 201911175846 A CN201911175846 A CN 201911175846A CN 112445330 A CN112445330 A CN 112445330A
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- touch pad
- feedback module
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR 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; CALCULATING OR 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; CALCULATING OR 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
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR 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; CALCULATING OR 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 a suspended wing plate, a transmission structure, a touch pad, at least one piezoelectric motor and at least one limiting structure, wherein the transmission structure and the piezoelectric motor are respectively arranged on the suspended wing plate; the limiting structure is an elastic structure, is arranged on one side of the suspension wing plate close to the touch pad and is positioned in an area surrounded by the transfer structure; the touch pad is erected on one side of the transfer structure, which is far away from the suspension wing plate; limiting structure can restrict the touch pad for the downward vibration range of hanging the pterygoid lamina, avoids touch pad direct impact piezoelectric motor or hangs the pterygoid lamina and produce mechanical damage, improves the reliability of touch pad, and the voltage signal of piezoelectric motor output is comparatively steady in succession, and piezoelectric motor drives and hangs the pterygoid lamina and take place bending deformation, gives the touch pad through the transmission structure with vibration transmission, makes the touch pad can produce the displacement of steady in succession along range upon range of direction, improves touch-control feedback's stability.
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 reliability of the overall structure and stability of touch feedback.
Disclosure of Invention
Therefore, it is necessary to provide a touch feedback module and a touch device for solving the problem that the touch feedback module cannot achieve better effects in terms of reliability of the overall structure and stability of touch feedback.
The utility model provides a touch-control feedback module, includes hangs pterygoid lamina, transmission structure, touch pad, at least one piezoelectric motor and at least one limit structure, wherein:
the transmission structure and the piezoelectric motor are respectively arranged on the suspension wing plate;
the limiting structure is an elastic structure, is arranged on one side of the suspension wing plate close to the touch pad and is positioned in an area surrounded by the transfer structure;
the touch pad is erected on one side of the transfer structure far away from the suspension wing plate.
Among the above-mentioned touch-control feedback module, when external force pressed the touch pad, transmit the power for hanging the pterygoid lamina through transmission structure, lead to hanging the pterygoid lamina and take place bending deformation, and then drive piezoelectric motor and produce voltage output through the direct piezoelectric effect, because be provided with limit structure in the one side that hangs the pterygoid lamina and be close to the touch pad, can restrict the touch pad for hanging the downward vibration range of pterygoid lamina, avoid touch pad direct impact piezoelectric motor or hang the pterygoid lamina and produce mechanical damage, the reliability of touch pad is improved, and the voltage signal of piezoelectric motor output is comparatively continuous steady. At the moment, the piezoelectric motor receives a voltage signal, and the suspension wing plate is driven to generate bending deformation through the action of force generated by inverse piezoelectric effect, so that vibration is transmitted to the touch pad through the transmission structure, the touch pad can generate continuous and stable displacement along the stacking direction, and the stability of touch feedback is improved.
In one embodiment, the limiting structure is arranged at a distance from the touch pad.
Among the above-mentioned touch-control feedback module, set up through limit structure and touch pad interval, can make the touch pad avoid touching limit structure and produce mechanical damage always at the in-process of vibration downwards on the one hand, improve the reliability of touch pad, on the other hand has also increased the range of touch pad vibration downwards.
In one embodiment, the piezoelectric motor is arranged on one side of the suspension wing plate close to the touch plate and in an area surrounded by the transfer structure, and the height of the limiting structure is greater than that of the piezoelectric motor along the stacking direction of the suspension wing plate and the piezoelectric motor.
Among the above-mentioned touch-control feedback module, limit structure is for piezoelectric motor's height on the range upon range of direction through injecing along hanging pterygoid lamina and piezoelectric motor, can avoid the touch pad to touch piezoelectric motor and produce mechanical damage at the in-process of vibration downwards, can avoid the touch pad to crush piezoelectric motor at the in-process of reciprocating vibration simultaneously to improve the reliability of touch pad and piezoelectric motor.
In one embodiment, the position limiting structure is arranged on the surface of the piezoelectric motor facing the touch plate.
Among the above-mentioned touch-control feedback module, through setting up limit structure in the surface of piezoelectric motor orientation touch pad to further keep apart piezoelectric motor and touch pad, avoid the touch pad at the in-process direct touch piezoelectric motor of vibration downwards, thereby improve the reliability of touch pad and piezoelectric motor.
In one embodiment, the piezoelectric motor is in a ring structure when the number of the piezoelectric motors is one, or a plurality of piezoelectric motors are arranged around to form a ring structure when the number of the piezoelectric motors is multiple;
the limiting structure is arranged in the hollow position of the annular structure.
Among the above-mentioned touch-control feedback module, through the hollow position with limit structure setting at the piezoelectric motor of loop configuration, on the one hand can improve overall structure's compactness, and on the other hand can also reduce transmission structure's thickness, is convenient for realize overall structure's miniaturization.
In one embodiment, the limiting structure is arranged on the surface of the suspension plate facing the touch plate, so that the arrangement of other structural members is facilitated.
In one embodiment, the limiting structure adopts an EVA porous plate with a hardness of 30A-50A, which can increase the buffering performance of the limiting structure and avoid mechanical damage when the touch pad contacts the limiting structure, but is not limited to this, and may also be other elastic structural members.
In one embodiment, a protection layer is disposed between the piezoelectric motor and the suspension plate for protecting the piezoelectric motor, so as to improve reliability of the touch feedback module.
In one embodiment, the protective layer includes a reinforcing plate, and the reinforcing plate is disposed on a surface of the suspension wing plate opposite to the piezoelectric motor, and is used for improving the supporting strength of the suspension wing plate on the piezoelectric motor, and further improving the reliability of the touch feedback module.
In one embodiment, the protective layer comprises a waterproof layer, and the waterproof layer is arranged on the surface of the piezoelectric motor opposite to the suspension wing plate so as to prevent water vapor from entering the piezoelectric motor and improve the reliability of the piezoelectric motor.
In one embodiment, the transmission structure is elastically connected with the suspension wing plate so as to eliminate the influence caused by the deformation of the suspension wing plate under the condition that the transmission structure has a good transmission effect.
In one embodiment, the transmission structure and the suspension wing plate are connected through elastic glue, so that the influence caused by the deformation of the suspension wing plate is eliminated through the elasticity of the elastic glue in the force transmission process.
In addition, the invention also provides a touch device, which comprises the touch feedback module in any embodiment.
Among the above-mentioned touch device, because the touch feedback module is provided with limit structure through the one side that is close to the touch pad at the hanging pterygoid lamina, can restrict the touch pad for hanging the downward vibration range of pterygoid lamina, avoid the touch pad direct impact piezoelectric motor or hang the pterygoid lamina and produce mechanical damage, improve the reliability of touch pad, and the voltage signal of piezoelectric motor output is comparatively continuous steady, the touch pad can produce continuous steady displacement along range upon range of direction, improve the stability of touch feedback, therefore, the overall structure reliability of the touch device who has this touch feedback module is higher, the stability of touch feedback is better.
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 of a touch feedback module according to still another embodiment of the present invention;
FIG. 4 is a schematic cross-sectional view illustrating a touch feedback module according to 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 still another embodiment of the present invention;
FIG. 7 is a schematic cross-sectional view illustrating a touch feedback module according to 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 still another embodiment of the present invention;
reference numerals:
100. touch feedback module 110, suspension plate 120 and transmission structure
121. Accommodating area 130, touch panel 140, piezoelectric motor
150. Limiting structure 151, first limiting structure 152 and second limiting structure
160. Elastic adhesive 170 and protective layer
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.
As shown in fig. 1, 2, 3, and 4, a touch feedback module 100 includes a suspension plate 110, a transmission structure 120, a touch pad 130, at least one piezoelectric motor 140, and at least one position limiting structure 150, wherein the suspension plate 110 is used for carrying the piezoelectric motor 140, and may be made of aluminum alloy, bakelite, glass, stainless steel, other alloy materials, etc., a thickness of the suspension plate 110 ranges from 0.3mm to 5mm, for example, 0.3mm, 1mm, 2mm, 2.65mm, 3mm, 4mm, 5mm, etc., and a specific material and a thickness of the suspension plate 110 are determined according to an actual situation of the touch feedback module 100; the flap plate 110 may have a rectangular parallelepiped shape, a square shape, a cylindrical shape, and other irregular shapes, and the embodiment of the present invention is not limited thereto.
The transmission structure 120 is disposed on the suspended wing plate 110, and when the transmission structure 120 is disposed specifically, the transmission structure 120 is elastically connected to the suspended wing plate 110, so as to eliminate the influence of deformation of the suspended wing plate 110 under the condition that the transmission structure 120 has a good transmission effect, and 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 of deformation of the suspended wing plate 110. As shown in fig. 5 and 6, the transmission structure 120 may also be made of a rigid material, and then the elastic adhesive 160 is disposed between the transmission structure 120 and the suspension plate 110 to achieve connection, so that the transmission structure 120 has a good transmission effect, and the elastic adhesive between the transmission structure 120 and the touch pad 130 has a certain elasticity to eliminate the influence of deformation of the suspension plate 110. The shape of the transmitting structure 120 is not limited, and may be, for example, a rectangular parallelepiped shape having an edge that is flush with the edges of the touch pad 130 and the suspension plate 110, or may be moved inward by a distance that is not flush with the edges of the suspension plate 110. The transmission structure 120 may also be square, cylindrical, etc., and the embodiment of the present invention is not limited thereto.
The piezoelectric motor 140 is disposed on the suspended plate 110, and when the piezoelectric motor 140 is disposed, the piezoelectric motor 140 may be connected to the suspended plate 110 by a mechanical method, such as a snap connection, a male-female connection, or a screw connection, or may be bonded by using, for example, OCA optical adhesive, OCR optical adhesive, or double-sided adhesive. The piezoelectric motor 140 includes a piezoelectric element, which is a core portion and may employ an organic piezoelectric material, an inorganic ceramic piezoelectric material, a single crystal piezoelectric material, a lead-free piezoelectric material, or the like, and an internal driving circuit. The piezoelectric element is deposited, bonded, or the like on the surface of the suspended wing plate 110, the piezoelectric element is made of piezoelectric ceramic, and the piezoelectric element may be in a rectangular parallelepiped shape, a square shape, a cylindrical shape, a ring shape, or the like, and the embodiment of the present invention is not limited thereto.
As shown in fig. 7 and 8, in order to improve the reliability of the entire module, a protective layer 170 is provided between the piezoelectric motor 140 and the suspended plate 110 for protecting the piezoelectric motor 140, the piezoelectric element in the piezoelectric motor 140 may be bonded with a certain protective material to form the protective layer 170, and then combined with the suspended plate 110, or the protective layer 170 may be formed on the suspended plate 110 and combined with the piezoelectric motor 140; when the touch control feedback module 100 is specifically arranged, the protective layer 170 may include a reinforcing plate, the reinforcing plate is fixedly arranged on the surface of the suspended wing plate 110 opposite to the piezoelectric motor 140 by means of glue joint, snap joint, threaded connection and the like, and then is fixedly connected with the piezoelectric motor 140, the reinforcing plate may be made of a steel plate, an alloy plate or other materials with high supporting strength, and the supporting strength of the suspended wing plate 110 on the piezoelectric motor 140 is improved by arranging the reinforcing plate, so that the reliability of the touch control feedback module 100 is improved; the protective layer 170 may further include a waterproof layer, the waterproof layer is fixedly disposed on the surface of the suspension piezoelectric motor 140 opposite to the wing plate 110 by means of glue joint and the like, and then is fixedly connected to the wing plate 110, the waterproof layer may be made of polyurethane, polyvinyl chloride and the like, and the waterproof layer is disposed to prevent water vapor from entering the piezoelectric motor 140, so that the reliability of the piezoelectric motor 140 is improved. Of course, the protection layer 170 is not limited to the stiffener and the waterproof layer, and may be in other structural forms, such as a flexible circuit board, and the specific structural form of the protection layer 170 is determined according to the actual situation of the touch feedback module 100.
The touch pad 130 is erected on one side of the transfer structure 120 away from the pendant plate 110, and when the touch pad 130 is specifically arranged, the thickness of the touch pad 130 ranges from 0.5mm to 5mm, for example, 0.5mm, 1mm, 2mm, 3mm, 4mm, 5mm, and the like. When the touch panel 130 has a rectangular parallelepiped shape, the length and width of the touch panel 130 may be 120mm by 60 mm. The touch panel 130 may also be cylindrical, square, etc. The touch pad 130 may be of conventional dimensions, and other mating components, such as the transfer structure 120, the pendant plate 110, the piezoelectric motor 140, etc., may be adaptively adjusted. The touch pad 130 is suspended above the suspension plate 110 by two sets of transmission structures 120, and a certain distance is formed between the touch pad 130 and the piezoelectric motor 140 to prevent the piezoelectric motor 140 from being damaged by pressure.
The limiting structure 150 is an elastic structure, and when the limiting structure is specifically arranged, the limiting structure 150 is made of elastic materials such as foam, rubber and plastic, and the hardness of the material 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 the vibration amplitude of the touch pad 130 relative to the suspension plate 110, the limit structure 150 is disposed on a side of the suspension plate 110 close to the touch pad 130, and the limit structure 150 is located in the receiving area 121 surrounded by the transmitting structure 120, so that the amplitude of the vibration of the touch pad 130 is limited by the limit structure 150 when the touch pad vibrates downwards.
In the touch feedback module 100, when an external force presses the touch pad 130, the force is transmitted to the suspension plate 110 through the transmission structure 120, so that the suspension plate 110 is bent and deformed, and the piezoelectric motor 140 is driven to generate voltage output through a positive piezoelectric effect, because the limiting structure 150 is arranged on one side of the suspension plate 110 close to the touch pad 130, the downward vibration amplitude of the touch pad 130 relative to the suspension plate 110 can be limited, the touch pad 130 is prevented from directly colliding with the piezoelectric motor 140 or the suspension plate 110 to generate mechanical damage, the reliability of the touch pad 130 is improved, and a voltage signal output by the piezoelectric motor 140 is continuous and stable. At this time, the piezoelectric motor 140 receives the voltage signal, and generates a force effect through an inverse piezoelectric effect, so as to drive the suspension plate 110 to generate bending deformation, and thus transmit vibration to the touch pad 130 through the transmission structure 120, so that the touch pad 130 can generate continuous and stable displacement along the stacking direction, and the stability of touch feedback is improved. In addition, the limiting structure 150 can also prevent the touch pad 130 from bending to a larger extent, so that the downward movement feeling when the touch pad 130 is pressed is reduced, the user experience is improved, meanwhile, the sinking of the touch pad 130 in the long-term use process can also be avoided, and the attractiveness of the touch feedback module 100 is improved.
There are various relative positional relationships between the position limiting structure 150 and the touch pad 130, as shown in fig. 1, 2, 5 and 7, the position limiting structure 150 and the touch pad 130 may be in direct contact, or the position limiting structure 150 and the touch pad 130 may not be in contact, as shown in fig. 1, 3, 4, 6, 8 and 9, in a preferred embodiment, there is a certain distance between the position limiting structure 150 and the touch pad 130, so that the position limiting structure 150 and the touch pad 130 are spaced apart. Of course, the relative position between the position limiting structure 150 and the touch pad 130 may be in other forms, as shown in fig. 1, a part of the position limiting structure 150 may be in direct contact with the touch pad 130, and another part of the position limiting structure 150 is spaced apart from the touch pad 130.
In the touch feedback module 100, the limiting structure 150 and the touch pad 130 are arranged at an interval, so that the touch pad 130 can avoid mechanical damage caused by the fact that the limiting structure 150 is touched all the time in the downward vibration process, the reliability of the touch pad 130 is improved, the limiting structure 150 and the touch pad 130 are arranged at an interval on the other hand, the downward vibration amplitude of the touch pad 130 is increased, and the touch feedback experience of a user is improved. In a specific setting, the specific form of the relative position between the limiting structure 150 and the touch pad 130 is determined according to the actual condition of the touch feedback module 100.
The positioning structure 150 is disposed on the suspension plate 110 in various ways, as shown in fig. 1, the piezoelectric motor 140 is disposed on a side of the suspension plate 110 close to the touch pad 130, and the piezoelectric motor 140 is located in an area enclosed by the transmission structure 120, and the positioning structure 150 includes a first positioning structure 151 and a second positioning structure 152, wherein the first positioning structure 151 is disposed on a surface of the piezoelectric motor 140 facing the touch pad 130, and the second positioning structure 152 is disposed on a surface of the suspension plate 110 facing the touch pad 130. As shown in fig. 3, the piezoelectric motor 140 is disposed on a side of the suspended wing plate 110 close to the touch pad 130, and the limiting structure 150 only includes the second limiting structure 152 directly disposed on a surface of the suspended wing plate 110 facing the touch pad 130, at this time, the limiting structure 150 is more convenient to be disposed and facilitates the disposition of other structural members, as shown in fig. 4, 6 and 8, the piezoelectric motor 140 is disposed on a side of the suspended wing plate 110 far from the touch pad 130, and the limiting structure 150 only includes the second limiting structure 152 directly disposed on a surface of the suspended wing plate 110 facing the touch pad 130, at this time, under the condition that the same amplitude of the touch pad 130 is ensured, the thickness of the transmitting structure 120 is smaller;
of course, the arrangement manner of the stopper structure 150 on the pendant plate 110 is not limited to the above, and specifically, as shown in fig. 5, the piezoelectric motor 140 is arranged on the side of the pendant plate 110 close to the touch pad 130, and the stopper structure 150 is arranged on the surface of the piezoelectric motor 140 facing the touch pad 130. In a specific configuration, one side of the limiting structure 150 is connected to the piezoelectric motor 140, and the other side of the limiting structure 150 is not connected to the touch pad 130, so as to avoid the limiting structure 150 from causing bending deformation of the touch pad 130, so as to ensure that the touch pad 130 has a certain vibration amplitude, and also to enable the entire touch pad 130 to generate a synchronous vibration effect. The connection mode of the limiting structure 150 to the piezoelectric motor 140 may be a mechanical type, such as a snap connection, a concave-convex fit connection, or a threaded connection, or may be an adhesive type, such as an OCA optical adhesive, an OCR optical adhesive, a double-sided adhesive, or the like.
In the touch feedback module 100, the limiting structure 150 is disposed on the surface of the piezoelectric motor 140 facing the touch pad 130, so that the vibration amplitude of the touch pad 130 relative to the pendant plate 110 is limited, and the piezoelectric motor 140 and the touch pad 130 can be isolated, thereby preventing the touch pad 130 from directly touching the piezoelectric motor 140 in the downward vibration process, and improving the reliability of the touch pad 130 and the piezoelectric motor 140. On the basis, the limiting structure 150 and the touch pad 130 are arranged at intervals, so that the downward vibration amplitude of the touch pad 130 is increased, and a certain interval 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.
Specifically, when the piezoelectric motor 140 is disposed on the side of the pendant board 110 close to the touch panel 130 and the stopper structure 150 is disposed on the surface of the piezoelectric motor 140 facing the touch panel 130, as shown in fig. 1 and 3, the height of the stopper structure 150 is greater than the height of the piezoelectric motor 140 in the stacking direction of the pendant board 110 and the piezoelectric motor 140 (the extending direction of the center line X of the pendant board 110 in fig. 1 and 3).
In the touch feedback module 100, the height of the limiting structure 150 relative to the piezoelectric motor 140 in the stacking direction of the pendant plate 110 and the piezoelectric motor 140 is limited, so that the touch pad 130 can be prevented from touching the piezoelectric motor 140 all the time to cause mechanical damage in the downward vibration process, and the touch pad 130 can be prevented from pressing the piezoelectric motor 140 in the reciprocating vibration process, so as to improve the reliability of the touch pad 130 and the piezoelectric motor 140. In addition, a specific value of the difference between the heights of the position limiting structure 150 and the piezoelectric motor 140 in the stacking direction of the cantilever plate 110 and the piezoelectric motor 140 may be determined according to the actual model of the touch feedback module 100.
Specifically, as shown in fig. 9, when the number of the piezoelectric motors 140 is one, the piezoelectric motors 140 may have a ring structure, and when the number of the piezoelectric motors 140 is plural, the plural piezoelectric motors 140 may be disposed around the center line X of the suspension plate 110; in both cases, the position limiting structure 150 can be directly disposed at the hollow position of the ring structure.
In the touch feedback module 100, the limit structure 150 is disposed at the hollow position of the piezoelectric motor 140 having the annular structure, so that the compactness of the overall structure can be improved, the thickness of the transmission structure 120 can be reduced, and the overall structure can be miniaturized.
Further, as shown in fig. 1, a line connecting the left and right sides is defined as a first direction Z. The extension length of the limiting structure 150 parallel to the first direction Z is shorter than the extension length of the piezoelectric motor 140 parallel to the first direction Z, so as to reduce the volume of the limiting structure 150, and facilitate the realization of the lightness and thinness of the touch feedback module 100.
In addition, the present invention further provides a touch device, which includes the touch feedback module 100 according to any of the above embodiments.
In the above touch device, since the touch feedback module 100 is provided with the limiting structure 150 on the side of the suspended wing plate 110 close to the touch pad 130, the downward vibration amplitude of the touch pad 130 relative to the suspended wing plate 110 can be limited, the situation that the touch pad 130 directly collides with the piezoelectric motor 140 or the suspended wing plate 110 to generate mechanical damage is avoided, the reliability of the touch pad 130 is improved, the voltage signal output by the piezoelectric motor 140 is continuous and stable, the touch pad 130 can generate continuous and stable displacement along the stacking direction, and the stability of touch feedback is improved, therefore, the touch device with the touch feedback module 100 has high reliability of the overall structure, and good stability of touch feedback.
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 (13)
1. The utility model provides a touch-control feedback module, its characterized in that, includes hangs pterygoid lamina, transmission structure, touch pad, at least one piezoelectric motor and at least one limit structure, wherein:
the transmission structure and the piezoelectric motor are respectively arranged on the suspension wing plate;
the limiting structure is an elastic structure, is arranged on one side of the suspension wing plate close to the touch pad and is positioned in an area surrounded by the transfer structure;
the touch pad is erected on one side of the transfer structure far away from the suspension wing plate.
2. The touch feedback module of claim 1, wherein the position limiting structure is spaced apart from the touch pad.
3. The touch feedback module according to claim 2, wherein the piezoelectric motor is disposed on a side of the suspension plate close to the touch pad and within an area surrounded by the transmission structure, and a height of the position limiting structure is greater than a height of the piezoelectric motor along a stacking direction of the suspension plate and the piezoelectric motor.
4. The touch feedback module of claim 3, wherein the position limiting structure is disposed on a surface of the piezoelectric motor facing the touch pad.
5. The touch feedback module according to claim 3, wherein the piezoelectric motor is of a ring structure when the number of the piezoelectric motors is one, or a plurality of piezoelectric motors are arranged around the piezoelectric motor to form a ring structure when the number of the piezoelectric motors is multiple;
the limiting structure is arranged in the hollow position of the annular structure.
6. The touch feedback module according to claim 2 or 3, wherein the position limiting structure is disposed on a surface of the suspension plate facing the touch pad.
7. The touch feedback module of claim 1, wherein the limiting structure is an EVA porous plate with a hardness of 30A-50A.
8. The touch feedback module of claim 1, wherein a protective layer is disposed between the piezoelectric motor and the suspension plate for protecting the piezoelectric motor.
9. The touch feedback module of claim 8, wherein the protective layer comprises a stiffener disposed on a surface of the suspension plate facing the piezoelectric motor.
10. The touch feedback module of claim 8, wherein the protective layer comprises a waterproof layer disposed on a surface of the piezoelectric motor facing the suspension plate.
11. The touch feedback module of claim 1, wherein the transmitting structure is elastically connected to the suspension plate.
12. The touch feedback module of claim 11, wherein the transmitting structure and the suspension plate are connected by an elastic adhesive.
13. A touch device comprising the touch feedback module according to any one of claims 1 to 12.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910803936 | 2019-08-28 | ||
| CN2019108039360 | 2019-08-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112445330A true CN112445330A (en) | 2021-03-05 |
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| CN201922071417.8U Expired - Fee Related CN211375552U (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 |
| CN201922070190.5U Expired - Fee Related CN211236846U (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 |
| CN201922071452.XU Expired - Fee Related CN210776587U (en) | 2019-08-28 | 2019-11-26 | Touch feedback module and touch device |
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| 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 |
| CN201922070190.5U Expired - Fee Related CN211236846U (en) | 2019-08-28 | 2019-11-26 | Touch feedback module and touch device |
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| 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 |
| 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 |
| 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 |
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| 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 | Portable 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 same |
| 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 |
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| CN211236846U (en) | 2020-08-11 |
| CN112445329A (en) | 2021-03-05 |
| CN210776587U (en) | 2020-06-16 |
| CN112445331A (en) | 2021-03-05 |
| WO2021036053A1 (en) | 2021-03-04 |
| WO2021036052A1 (en) | 2021-03-04 |
| WO2021036051A1 (en) | 2021-03-04 |
| CN210776588U (en) | 2020-06-16 |
| CN211375552U (en) | 2020-08-28 |
| WO2021036054A1 (en) | 2021-03-04 |
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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. 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. |
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