CN216871180U - Touch pad and electronic equipment - Google Patents

Abstract

The embodiment of the utility model provides a touch pad and electronic equipment, wherein the touch pad is used for being installed on a shell of the electronic equipment and is characterized by comprising a touch panel; the pressure sensor is used for converting the deformation of the pressure sensor into a first electric signal when the touch panel bears pressure, and the first electric signal is used for calculating to obtain a pressure detection result; the reinforcing plate is fixed below the touch panel, and a cantilever beam structure with steps is formed on the reinforcing plate and used for supporting the pressure sensor; the force transmission part is fixed below the cantilever beam structure, fixed below the cantilever beam structure and used for enabling the cantilever beam structure to move upwards when the touch panel bears pressure so as to drive the pressure sensor to generate elastic deformation; and the tactile feedback part is fixed below the touch panel and used for providing vibration feedback for the user according to the pressure calculation result. Based on this scheme, because be formed with the cantilever beam structure that is used for supporting pressure sensor on the stiffening plate, need not additionally set up the elastic support who is used for supporting pressure sensor, reduced the subassembly quantity of touch-control board, and then simplified the equipment process, saved the cost.

Description

Touch pad and electronic equipment

Technical Field

The embodiment of the application relates to the technical field of electronics, in particular to a touch pad and electronic equipment.

Background

A touch pad is a device that senses the position and movement of a user's finger through a touch sensor, thereby controlling the movement of a cursor on a display interface of an electronic device. The conventional touch pad generally detects a pressing action of a user through a physical key to execute functions such as confirming or calling up a menu.

In order to improve the convenience of operation of the touch pad, the pressure touch pad is gradually becoming a new trend. The pressure touch pad cancels the physical keys of the conventional touch pad, and is provided with a pressure sensor and a touch feedback device to execute the functions of pressure induction, vibration feedback and the like.

In the related art, the pressure touch pad is usually provided with an independent pressure detection bracket to support the pressure sensor due to the requirement of the whole assembly design, which leads to the complicated design and assembly of the touch pad.

SUMMERY OF THE UTILITY MODEL

In view of the above, embodiments of the present application provide a touch pad and an electronic device, so as to at least partially solve the above technical problems.

In a first aspect, a touch pad is provided, which includes: a touch panel; the pressure sensor is used for converting the deformation of the pressure sensor into a first electric signal when the touch panel bears pressure, and the first electric signal is used for calculating to obtain a pressure detection result; the pressure sensor comprises a bearing plate, a pressure sensor and a pressure sensor, wherein the bearing plate is used for bearing the touch panel, a cantilever beam structure is formed on the bearing plate and used for supporting the pressure sensor and driving the pressure sensor to elastically deform when the touch panel bears pressure; and the tactile feedback device is arranged below the touch panel and used for providing vibration feedback for the user according to the pressure detection result.

In one possible implementation, the reinforcing plate is adhered to the lower surface of the touch panel by a first adhesive layer.

In a possible implementation manner, a plurality of the cantilever structures are formed on the reinforcing plate, and the plurality of cantilever structures are arranged on the reinforcing plate near the edge area of the reinforcing plate.

In a possible implementation manner, the plurality of cantilever beam structures include four cantilever beam structures, the four cantilever beam structures are respectively disposed at four corners of the stiffener or at central positions of four edges of the stiffener, and the cantilever beam structure includes a cantilever region extending inward in the air from an edge region of the stiffener or a cantilever region extending outward in the air from an edge of the stiffener.

In one possible implementation, the cantilever structure has a fixed end and a free end that are oppositely disposed, the fixed end has a reinforcing portion, and the thickness of the fixed end is greater than that of the free end.

In one possible implementation, the cantilever region is not in the same plane as the connection portion of the non-cantilever region of the cantilever beam structure.

In a possible implementation manner, at least four cantilever beam structures are formed on the reinforcing plate, and the at least four cantilever beam structures are axially symmetrically distributed on the reinforcing plate.

In a possible implementation manner, the touch panel includes a plurality of electrical components for implementing the touch detection function, and the reinforcing plate is provided with at least one first opening for allowing the plurality of electrical components to pass through.

In a possible implementation manner, the touch panel includes a plurality of electrical components for implementing the touch detection function, and the reinforcing plate is provided with at least two second openings for allowing the plurality of electrical components to pass through.

In one possible implementation, the force transmission member includes a damping member for absorbing aftershocks generated by the haptic feedback device.

In one possible implementation, the damping member is a silicone pad having two opposite surfaces with double-sided adhesive tape.

In a possible implementation manner, the touch panel further includes a bearing plate disposed below the reinforcing plate, and the bearing plate is provided with an assembling surface adapted to the force transmission member and a first groove for accommodating the cantilever structure.

In a possible implementation manner, a reinforcing rib is formed at an edge region of the reinforcing plate, and a second groove for accommodating the reinforcing rib is formed on the bearing plate.

In a possible implementation manner, the touch panel includes a plurality of electrical components for implementing the touch detection function, a third opening for allowing the plurality of electrical components to pass through is formed on the carrier plate, and a limiting structure is disposed in a surrounding area of the third opening for limiting a downward displacement of the touch panel when the touch panel bears a pressure.

In one possible implementation, the touch panel includes a protective layer and a touch functional layer; the touch functional layer is adhered to the lower surface of the protective layer through a second adhesive layer and used for detecting touch information.

In one possible implementation, the second adhesive layer and the second adhesive layer include a double-sided tape or a low-temperature thermosetting tape.

In a second aspect, an electronic device is provided, including: a housing for mounting the touch pad and a touch pad panel provided in accordance with any one of the implementations of the first aspect.

In one possible implementation manner, the back surface of the casing is provided with a mounting surface for mounting the touch pad, and the touch pad is mounted to the casing from the back surface of the casing through the mounting surface.

In a possible implementation manner, a mounting groove for accommodating the touch pad is provided on the housing, and an upper surface of the mounting groove is provided with a mounting surface for fitting with the force transmission member and a plurality of openings for allowing electrical components on the touch pad to pass through.

In a possible implementation manner, a limiting structure is arranged on the upper surface of the mounting groove and used for limiting the downward displacement of the touch pad when the touch pad bears pressure.

The embodiment of the application provides a touch pad and electronic equipment, because the stiffening plate is used for bearing touch panel, the stiffening plate below is formed with the cantilever beam structure, and cantilever beam structure below sets up the power transmission part. After the touch panel is subjected to a pressure, the pressure may be transmitted via the stiffener and the force transmitting member down to a component for assembly with the force transmitting member (e.g., a housing or other load bearing component of an electronic device), and a reaction force from the component is applied to the cantilever beam structure via the force transmitting member, causing the cantilever beam structure to displace upward. Because the cantilever beam structure supports the pressure sensor, the upward displacement of the cantilever beam structure can drive the pressure sensor supported by the cantilever beam structure to generate elastic deformation. The pressure sensor converts the detected deformation into an electric signal to detect the pressure. Because the cantilever beam structure for supporting the pressure sensor is formed on the reinforcing plate, an elastic support for supporting the pressure sensor is not required to be additionally arranged, the number of components of the touch pad is reduced, the assembling process is simplified, and the cost is saved. Meanwhile, the tactile feedback device can feed a jolt back to the user according to the pressure detection result. The vibration feedback can enable the user to determine whether the pressing operation is effective or not, so that repeated gestures can be reduced to the maximum extent, and more convenient or comfortable operation experience is provided for the user.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the embodiments of the present application, and other drawings can be obtained by those skilled in the art according to the drawings.

FIG. 1 is a schematic view of a stack-up of a touch pad according to one embodiment of the present application;

FIG. 2 is a schematic view of a stack-up of a touch pad according to one embodiment of the present application;

FIG. 3 is a schematic structural view of a damping member according to an embodiment of the present application;

FIG. 4 is an exploded view of the touch pad structure according to one embodiment of the present application;

FIG. 5 is a schematic structural view of the cantilever beam structure of FIG. 4;

FIG. 6 is an exploded view of the touch pad structure according to one embodiment of the present application;

FIG. 7 is an exploded view of the assembly of a touchpad with the housing of an electronic device according to one embodiment of the present application;

fig. 8 is an exploded view of the assembly of a touch pad and a housing of an electronic device according to an embodiment of the present application.

Detailed Description

In order to make those skilled in the art better understand the technical solutions in the embodiments of the present application, the technical solutions in the embodiments of the present application will be described in detail below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application shall fall within the scope of the protection of the embodiments in the present application.

Specific implementations of embodiments of the present application are further described below with reference to the accompanying drawings.

The technical scheme of the embodiment of the application can be applied to various electronic devices.

Such as portable or mobile computing devices, e.g., smart phones, laptops, tablet circuits, gaming devices, etc., and other electronic devices, e.g., electronic databases, automobiles, Automated Teller Machines (ATMs), etc. However, the present embodiment is not limited thereto.

Fig. 1 shows a schematic structural diagram of a touch panel 10 according to an embodiment of the present application. The touch pad 10 may be mounted on a housing of an electronic device. As shown in fig. 1, the touch panel 10 includes:

a touch panel 110;

a pressure sensor 120 for converting a deformation of the pressure sensor 120 into a first electrical signal when the touch panel 110 is subjected to a pressure, the first electrical signal being used for calculating a pressure detection result;

a reinforcing plate 130 fixed below the touch panel 110, wherein a cantilever structure 1031 with a step is formed on the reinforcing plate 130 to support the pressure sensor 120;

the force transmission component 140 is disposed below the cantilever structure 1031, and is configured to enable the cantilever structure 1031 to displace upward when the touch panel 110 bears a pressure, so as to drive the pressure sensor 120 to elastically deform;

and a tactile feedback part fixed under the touch panel 110 for providing a vibration feedback to the user according to the pressure detection result.

In the embodiment of the present application, the pressure sensor 120 may employ a strain gauge, for example, a cantilever strain gauge.

In the embodiment of the present application, the stepped cantilever beam structure 1031 includes a cantilevered region (i.e., a free end) protruding in the air, and a non-cantilevered region (i.e., a fixed end) integrated with the stiffening plate 130, such as the cantilevered region 1031a and the non-cantilevered region 1031b in fig. 1. In this cantilever beam structure, the height of the upper surface of the cantilever region 1031a is lower than the height of the upper surface of the height 1031b of the non-cantilever region 1031b, so that the cantilever region forms a step a with the non-cantilever region.

It should be understood that cantilever beam structure 1031 is used to support pressure sensor 120, and it is understood that pressure sensor 120 is fixed to an upper surface of cantilever beam structure 1031, or pressure sensor 120 is fixed to a lower surface of cantilever beam structure 1031.

In the embodiment of the present application, the force transmission member 140 is fixed below the cantilever structure 1031, and after the touch pad is mounted on a housing or other component of the electronic device, the force transmission member 140 abuts against the housing or other component. After the touch panel 110 is subjected to a pressure, the pressure is transmitted via the stiffener 130 and the force transmission member 140 and transmitted downward to the housing or other components, and a reaction force from the housing or other components is applied to the cantilever structure 1031 via the force transmission member 140, which causes the cantilever structure 1031 to displace upward, and brings the pressure sensors 120 supported by the cantilever structure 1031 to deform elastically. Then, the pressure sensor 120 converts the detected deformation into an electrical signal for pressure detection. In an implementation manner of the present application, the cantilever structure 1031 may be integrally formed with the stiffener by a die-casting process, so as to simplify an assembly process of the touch pad.

In embodiments of the present application, the haptic feedback device may be a linear motor, for example, a linear motor that vibrates in an X or Y axis. The tactile feedback device may also be a piezoceramic wafer or the like. It should be understood that the haptic feedback device may be other suitable actuators. The touch feedback device may be adhered to the touch panel 110, for example, to an edge of the touch panel 110, such that the tactile feedback device is located at an edge of a lower portion of the electronic device when the touch pad is mounted to a housing of the electronic device. In operation, the pressure detection chip may detect the pressure according to the first electrical signal collected by the pressure sensor 120, and send the result of the pressure detection to the main control board, and the main control board determines whether to send a vibration command to the haptic feedback device according to the result of the pressure detection. And the tactile feedback device vibrates according to a set mode after receiving the vibration command and feeds back the vibration sense to the user.

In the embodiment of the present application, since the stiffener 130 is used to bear the touch panel 110, a cantilever structure 1031 is formed below the stiffener 130, and a force transmission member 140 is disposed below the cantilever structure 1031. After the touch panel 110 receives a pressure, the pressure may be transmitted via the stiffener 130 and the force transmission member 140 down to a component for assembly with the force transmission member 140 (e.g., a housing or other load-bearing component of an electronic device), and a reaction force from the component is applied to the cantilever beam structure 1031 via the force transmission member 140, causing the cantilever beam structure 1031 to displace upward. Since the cantilever structure 1031 supports the pressure sensor 120, the upward displacement of the cantilever structure 1031 drives the supported pressure sensor 120 to elastically deform. The pressure sensor 120 converts the detected strain into an electrical signal to detect the pressure. Because the cantilever structure 1031 for supporting the pressure sensor is formed on the reinforcing plate, an elastic support for supporting the pressure sensor 120 is not required to be additionally arranged, so that the number of components of the touch pad is reduced, the assembling process is simplified, and the cost is saved. Meanwhile, the tactile feedback device can feed a jolt back to the user according to the pressure calculation result. The vibration feedback can enable the user to determine whether the pressing operation is effective or not, so that repeated gestures can be reduced to the maximum extent, and more convenient or comfortable operation experience is provided for the user.

In one embodiment of the present application, as shown in fig. 2, the reinforcing plate 130 is adhered to the lower surface of the touch panel 110 by a first adhesive layer 150 to be fixed to the lower side of the touch panel 110.

Due to the arrangement of the reinforcing plate 130, and the reinforcing plate 130 is adhered to the touch panel 110 through the first adhesive layer 150, the bending strength of the reinforcing plate 130 and the whole touch panel 110 can be improved, the deformation and collapse generated when the user presses the touch panel 110 can be reduced, and the user experience can be improved.

In the embodiment of the present application, the reinforcing plate 130 may be a metal structure.

The first adhesive layer 150 may be a double-sided tape. The bonding of the reinforcing plate 130 to the touch panel 110 can be achieved in a simple and low-cost manner by double-sided adhesive bonding.

The first adhesive layer 150 may be a low temperature thermosetting adhesive. The low temperature thermosetting adhesive has higher hardness than the double-sided adhesive. Therefore, the bending strength of the touch panel 110 and the stiffener 130 can be improved by using the low-temperature thermosetting adhesive.

In order to ensure that the bending strength of the touch panel 110 and the stiffener 130 is improved, in one implementation manner of the present application, the curing temperature of the low-temperature thermosetting adhesive is less than or equal to 85 ℃, the elastic modulus after curing is less than or equal to 3GPa, and the shore hardness is in a range of 40D to 80D.

In order to improve the overall bending strength of the touch panel and the stiffener, as shown in fig. 4, in one possible implementation, the edge region of the stiffener 130 'is formed with a stiffener 1303'. For example, the reinforcing ribs may be formed by making the thickness of the portions of the reinforcing plate 130 'where the reinforcing ribs 1303' are formed larger than the thickness of the other portions of the reinforcing plate 130. For example, the thickness of the free end is 0.8mm and the thickness of the reinforcing bar is 1.0 mm. Since the stiffness of the stiffener formed with the rib is increased, the stiffness (i.e., the bending strength) of the entire touch panel 110 and the stiffener 130 'can be increased when the stiffener 130' and the touch panel 110 are fixedly connected.

In an embodiment of the present application, the stiffening plate 130 is formed with a plurality of cantilever beam structures, and the plurality of cantilever beam structures are disposed on the stiffening plate 130 near an edge region of the stiffening plate. Therefore, the cantilever beam structures are arranged in a dispersed mode, and the structural stability of the touch pad can be guaranteed.

In addition, in order to further ensure the structural stability of the touch panel, the plurality of cantilever structures 1301 are at least four cantilever structures, and the four cantilever structures are axially and symmetrically distributed on the reinforcing plate.

In an implementation, four cantilever beam structures are arranged on the reinforcing plate 130, and the four cantilever beam structures are respectively arranged at four corners of the reinforcing plate 130, and because each cantilever beam structure bears the pressure sensor 120, the cantilever beam structure is arranged at the four corners of the reinforcing plate, so that the uniformity of pressure detection can be improved.

For another example, in another specific implementation, four cantilever structures 1301 are disposed on the reinforcing plate 130, each cantilever structure 1301 carries the pressure sensor 120, and the cantilever structures 1301 are disposed at the center positions of four sides of the reinforcing plate 130. Because the four cantilever beam structures 1301 are symmetrically distributed on the reinforcing plate, the structural stability of the touch pad can be ensured, and the uniformity of pressure detection is improved.

It should be noted that, in the embodiment of the present application, the number of the cantilever structures 1301 may also be six, eight or more. Because the cantilever beam structure is used for supporting the pressure sensors, if the number of the cantilever beam structures is increased, the number of the pressure sensors is correspondingly increased, and the accuracy of pressure detection is further improved. However, the increased number of pressure sensors also results in increased cost of the touch panel.

In addition, the specific position of the cantilever beam structure 1301 can also be designed as required, as long as the cantilever beam structure 1301 is ensured to be distributed on the reinforcing plate in an axial symmetry manner.

It should be understood that the number, the position, and the like of the cantilever beam structures may be set according to specific needs, which is not limited in the present application.

In an embodiment of the present application, as shown in fig. 2, the touch panel 110 may include: a protective layer 110a and a touch functional layer 110 c; the touch function layer 110c is adhered to the lower surface of the protective layer 110a through the second adhesive layer 110b, and is used to detect touch information.

The protective layer 110a is mainly used for protecting the touch functional layer 110 c. The protective plate may be, for example, a glass cover plate or the like. In addition, the protection layer 110a may be designed to beautify the touch pad from the appearance as an appearance member of the touch pad.

The touch function layer 110c is mainly used for detecting touch information. In one implementation, the touch function layer 110c includes a printed circuit board, and an electrical component (not shown) for implementing a touch detection function is disposed on the printed circuit board, and is used for transmitting and processing electrical signals such as touch control and press vibration to implement a system setting function.

The protective layer 110a and the touch function layer 110c are adhered by the second adhesive layer 110 b. The second adhesive layer 110b may be a double-sided tape. The double-sided adhesive is adopted, so that the protective layer 110a and the touch functional layer 110c can be adhered in a simple and low-cost mode.

The second adhesive layer 110b may also be a low temperature thermosetting adhesive. The low-temperature thermosetting adhesive has higher hardness than the double-sided adhesive. Therefore, the bending strength of the protection layer 110a and the touch functional layer 110c can be better improved by using the low-temperature thermosetting adhesive.

In order to ensure that the bending strength of the whole of the protective layer 110a and the touch functional layer 110c is better improved, in one implementation manner of the present application, the curing temperature of the low-temperature thermosetting adhesive is less than or equal to 85 ℃, the elastic modulus after curing is less than or equal to 3GPa, and the shore hardness is in a range of 40D to 80D.

It should be understood that the second adhesive layer 110b may be made of other suitable adhesives, which is not limited in this embodiment.

In the embodiment of the present application, the touch panel 110 includes a protective layer 110a and a touch functional layer, and the touch functional layer is adhered to the lower surface of the protective layer 110a through a second adhesive layer 110 b. Combine stiffening plate 130 through the adhesion of first adhesive linkage 150 in touch panel 110 below, more specifically, the below of touch-control functional layer 110c, form sandwich structure after protective layer, touch-control functional layer and the stiffening layer laminating, promoted whole bending strength.

In the embodiment of the present application, when the low temperature thermosetting adhesive is used for both the first adhesive layer 150 and the second adhesive layer 110b, the touch panel 110 and the reinforcing plate 130 which are adhered together by the low temperature thermosetting adhesive have sufficient bending strength as a whole due to the certain hardness of the low temperature thermosetting adhesive. In this case, the reinforcing plate 130 may not be provided with a reinforcing rib to simplify the structural design.

However, when the double-sided adhesive is used for the first adhesive layer 150 and the second adhesive layer 110b, the bending strength of the touch panel 110 and the reinforcing plate 130 adhered together by the double-sided adhesive may be poor in consideration of the fact that the double-sided adhesive is weak and is easily displaced. Therefore, a reinforcing rib may be further provided on the reinforcing plate 130 to improve the bending strength of the touch panel 110 and the reinforcing plate 130 adhered together.

In the embodiment of the present application, since the reinforcing plate 130 is disposed under the touch panel 110, an opening for allowing the tactile feedback device and the electrical component on the printed circuit board to pass through may be disposed in the reinforcing plate 130. The size, number and shape of the openings can be set according to needs, and the size, number and shape are not limited in the embodiment of the application.

In one embodiment of the present application, the force transfer member 140 may be a damping member, the force transfer member 140 also serving to absorb aftershocks generated by the haptic feedback device.

The damping component can be a silica gel composite material, such as a silica gel pad, and is used for vibration damping of the tactile feedback device.

The hardness of the damping member may preferably be about shore 30A to ensure a certain rigidity of the damping member, so as to avoid the damping member itself from being strained when the touch panel 110 is subjected to the strain, which affects the accuracy of pressure detection.

The thickness of the damping part can be preferably 0.5mm to 0.8mm, and the small thickness of the damping part can cause insufficient strain space of the cantilever beam structure, so that the pressure sensor supported by the cantilever beam structure cannot effectively detect pressure. On the other hand, if the thickness of the damping member is large, the touch panel may vibrate unevenly. In the embodiment of the present application, by setting the thickness of the damping member 140 to be between 0.5mm and 0.8mm, the vibration uniformity can be ensured under the condition that the cantilever beam structure 1301 has a sufficient strain space.

Since the force transmission member 140 is a damping member, the vibration of the tactile feedback device can be damped, and the vibration of the tactile feedback device is prevented from being transmitted to the casing of the electronic device when the touch pad is mounted on the electronic device, thereby improving the user experience. Meanwhile, the damping component can also serve as a force transmission component to transmit the reaction force of the pressure borne by the touch panel 110 to the cantilever structure, so that the cantilever structure is displaced upwards to drive the pressure sensor 120 to generate elastic deformation for pressure detection.

In one implementation of the present application, the damping members may be adhered to the cantilever beam structures through adhesive layers, respectively, to be fixed to the cantilever beam structures.

Alternatively, in another implementation of the present application, the damping member may be a member having glue on both opposing surfaces. For example, as shown in fig. 3, the damping member is a silicone pad having two opposite surfaces each provided with a double-sided tape. The cantilever beam structure is fixedly connected by the double-sided adhesive tape silica gel pad, so that the assembly process can be simplified.

Optionally, in one implementation of the present application, the damping member is located at a free end 1031 a' of the cantilever beam structure, as shown in fig. 4. This makes the cantilever structure more sensitive to the pressure applied on the touch panel, and when the touch panel 110 bears the pressure, the cantilever structure can generate a larger longitudinal displacement, which drives the pressure sensor 120 to generate a larger elastic deformation, thereby improving the sensitivity of pressure detection.

Based on the above embodiment, as shown in fig. 4, in a specific embodiment of the present application, four cantilever beam structures 1301 'are disposed on the reinforcing plate 130', and the four cantilever beam structures 1301 'are disposed at four corners of the reinforcing plate 130', respectively. Therefore, the cantilever beam structures 1301' are arranged dispersedly, and the structural stability of the touch pad can be guaranteed. Meanwhile, since each cantilever structure 1301 'carries a pressure sensor 120, the cantilever structure 1301' is disposed at four corners of the reinforcing plate 130, so that uniformity of pressure detection can be improved.

It is understood that four cantilever beam structures 1301 'may also be disposed at the center of the four sides of the stiffener 130'. Since the four cantilever structures 1301' are symmetrically distributed on the reinforcing plate 130, in this way, the structural stability of the touch panel can be ensured, and the uniformity of pressure detection can be improved.

It should be noted that in the embodiment of the present application, the number of the cantilever beam structures 1301' may also be six, eight or more. Because the cantilever beam structure is used for supporting the pressure sensors, if the number of the cantilever beam structures is increased, the number of the pressure sensors is correspondingly increased, and the accuracy of pressure detection is further improved. However, the increased number of pressure sensors also results in increased cost of the touch panel.

The cantilevered beam structure 1301' includes a cantilevered region that overhangs outwardly from the edge of the stiffener. Specifically, as shown in fig. 4 and 5, the cantilever regions 1301a '(free ends) extending from the edge regions of the short sides of the reinforcing plate 130' in the longitudinal direction of the reinforcing plate 130 'form the four corners of the reinforcing plate 130'.

It should be understood that the structure, number, position, etc. of the cantilever beam structures 1301 'in the stiffening plate 130' of fig. 4 are only one example, and other suitable modifications may occur to those skilled in the art, and the present application is not limited thereto.

In the present embodiment, the cantilever structure 1301 'has a reinforcing portion 1301 c' at the fixed end 1301b 'of the cantilever structure 1301'. The reinforced portion 1301c ' is located at the fixed end (i.e., 1301b ') of the cantilever beam structure 1301 '.

In one implementation of the present application, the thickness of the reinforced portion 1301c 'is greater than the thickness of the free end 1301 a'. The reinforcing portion 1301c ' can prevent the cantilever structure 1301 ' from breaking during long-term use by making the fixed end have an abrupt thickness with respect to the free end of the cantilever structure, thereby improving the durability of the cantilever structure 1301 '.

In an implementation manner of the present application, as shown in fig. 5, a cantilever region 1301a ' of a cantilever structure 1301 ' is not in the same plane as a connection portion of a non-cantilever region 1301b ', so that a stress concentration position of the cantilever structure 1301 ' is not in the same straight line, that is, a reinforcing portion 1301c ' is formed, thereby preventing the cantilever structure 1301 ' from breaking during long-term use, and improving durability of the cantilever structure 1301 '.

Since the touch panel 110 includes a plurality of electrical components for implementing a touch detection function, as shown in fig. 4, the reinforcing plate 130 'is provided with a first opening 1302' for allowing the plurality of electrical components to pass therethrough.

In the embodiment of fig. 4, the number of the first openings 1302' is one to simplify the assembly process.

It should be understood that the shape and size of the first opening 1302' can be designed based on the requirement, and the application is not limited thereto. In the embodiment of fig. 4, the first opening 1302' also allows the tactile feedback device 160 to protrude downward therethrough.

In order to increase the bending strength of the reinforcing plate 130 ', as shown in fig. 4, reinforcing ribs are formed at the edge region of the reinforcing plate 130'. For example, the reinforcing beads may be formed by making the thickness of the portion of the reinforcing plate where the reinforcing beads 1303' are formed larger than the thickness of the other portion of the reinforcing plate. Since the stiffness of the reinforcing plate formed with the reinforcing ribs is increased, the stiffness (i.e., the bending strength) of the entire touch panel 110 and the reinforcing plate 150 can be increased when the reinforcing plate 150 and the touch panel 110 are fixedly connected.

The reinforcing ribs 1303 ' are located between the respective cantilever beam structures 1301a ', and in the embodiment shown in fig. 4, the cantilever beam structures 1301a ' are located at the four corners of the reinforcing plate 130, and the reinforcing ribs 1303 ' are provided at the edges of the long and short sides of the reinforcing plate 130 ' in the long-side direction and the short-side direction, respectively.

However, in other implementations, the reinforcing ribs 1303 'may be disposed at other suitable positions of the reinforcing plate 130', which is not limited in the embodiments of the present application.

In the embodiment shown in fig. 4, a carrier plate 170 is further provided, which is disposed below the stiffening plate 130 ', and the carrier plate 170 is provided with a mounting surface 1704 for fitting with the force transfer member 140 and a first recess 1705 for accommodating the cantilever beam structure 1301'. After the supporting board 170 is assembled with the reinforcing board 130 ' and the force transmission member 140, the force transmission member 140 may be mounted on the mounting surface, so that after the touch panel 110 is subjected to a pressure, the pressure may be transmitted downward to the supporting board 170 through the reinforcing board 130 ' and the force transmission member 140, and a reaction force from the supporting board 170 is applied to the cantilever structure 1301 ' through the force transmission member 140, so that the cantilever structure 1301 ' is displaced upward to elastically deform the pressure sensor 120 supported by the cantilever structure 1301 '. The pressure sensor 120 converts the detected strain into an electric signal to detect the pressure.

As shown in fig. 4, the carrier plate 170 is provided with a second groove 1701 for receiving a reinforcing bar to achieve a tight fit with the reinforcing plate 130'. The arrangement position, size, structure, and number of the second grooves 1701 are adaptively changed according to the position, size, structure, and number of the reinforcing bars on the reinforcing plate 130', which is not limited in the embodiment of the present application.

In order to prevent the touch panel 110 from deforming greatly under the pressure, which affects the use experience of the touch panel, as shown in fig. 4, in an embodiment of the present application, a position limiting structure 1702 is disposed on the carrier plate 170 for limiting the downward displacement of the touch panel 110 under the pressure.

In a specific implementation manner, the limiting structure 1702 may be a protruding structure, for example, the thickness of a portion of the loading board on which the limiting structure is disposed may be greater than the thickness of other portions of the loading board to form the protruding structure, it should be understood that the limiting structure 1702 may also adopt other structures, and this embodiment is not limited thereto.

Since the carrier plate 170 is provided with a third opening 1703 for allowing the plurality of electrical components to pass through, in a specific implementation manner, as shown in fig. 4, the limiting structure 1702 is disposed in an edge region of the third opening 1703 to better perform a limiting function.

In the embodiment of the present application, the carrier plate 170 may be made of a metal structure material, for example, SUS301 stainless steel, SUS304 stainless steel, an aluminum alloy material 2a 12T 4, and an aluminum alloy material 7075-T6 may be selected. Due to the complicated structure of the bearing plate 170, the bearing plate 170 is preferably made of a die-cast material, such as aluminum alloy material 2a 12T 4, aluminum alloy material 7075-T6, and the like.

In the embodiment of the present application, a fixing hole 1706 is disposed in an edge region of the carrier plate 170, and is used for allowing the touch pad to be mounted through a fixing member.

In the embodiment of the present application, the touch pad 10' may be mounted to a housing 20 ' of the electronic device as shown in fig. 7, a back surface of the housing is provided with a mounting surface 201 ' for mounting the touch pad, and the touch pad is mounted to the housing 20 ' from the back surface of the housing through the mounting surface 201 '.

The back surface of the housing refers to a surface facing the inside of the electronic device during the use of the electronic device. As shown in fig. 7, the edge region of the carrier plate 170 of the touch pad is provided with a fixing hole. The corresponding position of the mounting surface 201 ' of the housing is provided with a fixing hole 202 ', and the carrier plate 170 can be fixed on the housing of the electronic device by a fastener, such as a fastening nut, so as to fix the touch pad on the housing 20 ' of the electronic device.

In the embodiment of the present application, since the stiffener 130 'is used to bear the touch panel 110, a cantilever structure 1301' is formed below the stiffener 130 ', a force transmission member 140 is disposed below the cantilever structure 1301', and the force transmission member 140 is supported by the mounting surface of the bearing plate 170. After the touch panel 110 is subjected to a pressure, the pressure can be transmitted downward to the carrier plate 170 through the stiffener and the force transmission member 140, and a reaction force from the carrier plate 170 is applied to the cantilever structure 1301 ' through the force transmission member 140, so that the cantilever structure 1301 ' is displaced upward to elastically deform the pressure sensor 120 supported by the cantilever structure 1301 '. The pressure sensor 120 converts the detected strain into an electrical signal to detect the pressure. Because a bracket for supporting the pressure sensor 120 does not need to be separately arranged, the number of components of the touch pad is reduced, the assembly process is simplified, and the cost is saved. Meanwhile, the tactile feedback device can feed a jolt back to the user according to the pressure detection result. The vibration feedback can enable the user to determine whether the pressing operation is effective or not, so that repeated gestures can be reduced to the maximum extent, and more convenient or comfortable operation experience is provided for the user.

It should be understood that the structure, number, shape and position of the touch panel 110, the force transmission member 140 and other related components in the embodiment of the present application are similar to those in the previous embodiments, and therefore, in order to avoid redundancy, detailed description thereof is omitted.

Based on the foregoing embodiment, as shown in fig. 6, in another embodiment of the present application, four cantilever beam structures 1301 "are provided on the reinforcing plate 130", and the four cantilever beam structures 1301 "are respectively formed at four corners of the reinforcing plate 130". The cantilever structure 1301 "includes a cantilever region overhanging inward from the edge region of the stiffener 130", specifically, as shown in fig. 6, a cantilever region 1301a "(i.e., a free end) overhanging inward from the edge region of the stiffener 130" in the long side direction.

It should be understood that the structure, number, position, etc. of the cantilever beam structure 1301 "in the stiffening plate 130" of fig. 6 are only one example, and other suitable modifications may occur to those skilled in the art, and the present application is not limited thereto.

In the present embodiment, the cantilevered beam structure has a reinforced portion 1301c "at the fixed end 1301 b" of the cantilevered beam structure. The reinforced portion 1301c "is located at the fixed end (i.e., 1301 b") of the cantilever structure 1301 ".

In one implementation of the present application, the fixed end 1301b "has a thickness greater than the thickness of the free end 1301 a". Specifically, the reinforcing portion 1301c ″ can prevent the cantilever structure 1301 ″ from being broken during long-term use by making the fixed end have an abrupt thickness with respect to the free end of the cantilever structure, thereby improving the durability of the cantilever structure 1301.

In another implementation manner of the present application, as shown in fig. 6, the cantilever region 1301a "of the cantilever structure 1301" is not on the same plane as the non-cantilever region 1301b ", so that the stress concentration positions of the cantilever structure 1301' are not on the same line, thereby preventing the cantilever structure 1301 from breaking during long-term use, and improving the durability of the cantilever structure 1301.

Since the touch panel 110 includes a plurality of electrical components for implementing a touch detection function, as shown in fig. 6, the reinforcing plate 130 is provided with a plurality of second openings 1032 ″ for allowing the plurality of electrical components to pass therethrough. By providing the plurality of second openings 1032 ″ instead of using one large opening allowing the plurality of electrical components to pass through, the bending strength of the reinforcing plate 130 may be weakened less, and thus the provision of the reinforcing rib, the carrier plate 170, and the like may be omitted.

It should be understood that the shape, size and number of the second openings 1032 "may be designed based on the needs, and the application is not limited thereto. In the embodiment of fig. 6, second opening 1032 "also includes an opening that allows the tactile feedback device to protrude downward therethrough, or second opening 1032" also allows the tactile feedback device to protrude downward therethrough.

In the embodiment of the present application, the touch pad may be directly mounted on the housing 20 ″ of the electronic device, as shown in fig. 8, the housing 20 ″ of the corresponding electronic device is provided with a mounting groove 201 "for accommodating the touch pad, and the upper surface of the mounting groove 201" is provided with a mounting surface 2012 "adapted to the force transmission member and a plurality of openings 2011" for allowing electrical components on the touch pad to pass through.

The number, size, structure and position of the openings 2011 "are adaptively modified according to the number, size, structure and position of the second openings 1032" on the reinforcing plate 130, which is not limited in the embodiments of the present application.

When the touch pad is mounted on the housing 20 ″, the force transmitting member 140 may be mounted on a mounting surface 2012 ″ of the electronic device, which is adapted to the force transmitting member, so that after the touch panel 110 bears a pressure, the force transmitting structure is supported by the housing of the electronic device, the pressure can be transmitted to the housing of the electronic device via the stiffener and the force transmitting member 140, and a reaction force from the housing is applied to the cantilever structure via the force transmitting member 140, so that the cantilever structure is displaced upward to elastically deform the pressure sensor 120 supported by the cantilever structure. The pressure sensor 120 converts the detected strain into an electric signal to detect the pressure.

In order to prevent the touch panel 110 from deforming greatly when being subjected to a large pressure, which affects the use experience of the touch panel, as shown in fig. 8, in an embodiment of the present application, a limiting structure 2013 ″ is disposed on an upper surface of the mounting groove 201 ″ for limiting a downward displacement of the touch panel when being subjected to a pressure.

The limiting structure 2013 ″ may be a protruding structure, for example, the thickness of the portion of the bottom of the mounting groove 201 ″ where the limiting structure is disposed may be greater than the thickness of other portions of the bottom of the mounting groove to form the protruding structure, it should be understood that the limiting structure 2013 ″ may also adopt other structures, and this embodiment is not limited thereto.

In a specific embodiment, as shown in fig. 8, a limiting structure 2013 "can be installed at the edge area of the groove portion of the installation groove 201" to better limit the position.

In the embodiment of the present application, since the stiffener 130 ″ is used to bear the touch panel 110, a cantilever structure is formed below the stiffener 130 ″, a force transmission member 140 is disposed below the cantilever structure, and the force transmission member 140 is supported by a housing of the electronic device. After the touch panel 110 is subjected to a pressure, the pressure can be transmitted via the stiffener and the force transmission member 140 and transmitted downward to the housing of the electronic device, and a reaction force from the housing is applied to the cantilever structure via the force transmission member 140, so that the cantilever structure is displaced upward, and the pressure sensor 120 supported by the cantilever structure is elastically deformed. The pressure sensor 120 converts the detected strain into an electric signal to detect the pressure. Because the bracket for supporting the pressure sensor 120 does not need to be separately arranged, and the bearing plate does not need to be arranged, the number of components of the touch pad is greatly reduced, the assembly process is simplified, and the cost is saved. Meanwhile, the tactile feedback device can feed a jolt back to the user according to the pressure detection result. The vibration feedback can enable the user to determine whether the pressing operation is effective or not, so that repeated gestures can be reduced to the maximum extent, and more convenient or comfortable operation experience is provided for the user.

It should be understood that the structure, number, shape and position of the touch panel, the force transmission member 140 and other related components in the embodiment of the present application are similar to those in the previous embodiments, and therefore, in order to avoid redundancy, detailed description thereof is omitted.

Further, FIG. 6 is merely an example of a touch pad, and it is understood that other suitable variations may occur to those skilled in the art, and the application is not limited thereto.

Embodiments of the present application further provide an electronic device, which includes a housing and the touch pad in the above-described various embodiments, where the housing is used for mounting the touch pad.

In one embodiment of the present application, as shown in fig. 7, the back surface of the housing 20 'is provided with a mounting surface 201' for mounting the touch pad, and the touch pad 10 'is mounted to the housing 20' from the back surface of the housing 20 'through the mounting surface 201'.

Here, the back surface of the housing 20' refers to a surface facing the inside of the electronic device during use of the electronic device. As shown in fig. 7, a fixing hole 1706 is disposed in an edge region of the carrier plate 170 of the touch pad 10'. The mounting surface of the housing is provided with a fixing hole 202' at a corresponding position, and the carrier plate 170 can be fixed to the housing of the electronic device by a fastening member, such as a fastening nut, so as to fix the touch pad to the housing of the electronic device.

It should be understood that the housing 20' of the electronic device in fig. 7 is suitable for a touch pad having a loading plate, such as the touch pad shown in fig. 4.

It should be understood that the housing 20' of the electronic device in fig. 7 is only an example, and in other embodiments, a suitable housing may be designed as needed, which is not limited by the embodiment.

In another embodiment of the present application, a mounting groove 201 "for accommodating the touch pad is provided on the housing, and an upper surface of the mounting groove 201" is provided with a mounting surface 2012 "for fitting with the force transmission member and a plurality of openings 2011" for allowing electrical components on the touch pad to pass through.

The number, size, structure and position of the openings 2011 "are adaptively modified according to the number, size, structure and position of the second openings 1032" on the reinforcing plate, which is not limited in the embodiment of the present application.

When the touch pad is mounted on the housing 20 ″, the force transmission member may be mounted on a mounting surface of the electronic device that is adapted to the force transmission member, so that after the touch panel bears a pressure, the force transmission structure is supported by the housing of the electronic device, the pressure may be transmitted to the housing of the electronic device via the stiffener and the force transmission member, and a reaction force from the housing is applied to the cantilever structure via the force transmission member, so that the cantilever structure is displaced upward to drive the pressure sensor supported by the cantilever structure to elastically deform. The pressure sensor converts the detected deformation into an electric signal to detect the pressure.

In order to prevent the touch panel from being deformed greatly when being subjected to a large pressure, which affects the use experience of the touch panel, as shown in fig. 8, in an embodiment of the present application, a limiting structure 2012 "is disposed on an upper surface of the mounting groove 201" for limiting a downward displacement of the touch panel when being subjected to the pressure.

The limiting structure 2012 ″ may be a limiting step or a protrusion, and it should be understood that the limiting structure 2012 ″ may also adopt other structures, which is not limited in this embodiment.

In a specific embodiment, as shown in fig. 8, a limit structure may be installed at an edge region of a groove portion of the mounting groove 201 ″ to preferably perform a limit function.

It should be understood that the housing of the electronic device in fig. 8 is suitable for a touch pad without a carrier plate, such as the touch pad shown in fig. 6. It should be noted that the housing of the electronic device in fig. 8 is also applicable to a touch panel provided with a carrier plate.

It should be understood that the housing of the electronic device in fig. 8 is only an example, and in other embodiments, a suitable housing may be designed as needed, and this embodiment does not limit this.

It should be understood that the embodiments in this specification are described in a progressive manner, and that the same or similar parts in the various embodiments may be referred to one another, with each embodiment being described with emphasis instead of the other embodiments. In particular, the method embodiments are substantially similar to the methods described in the apparatus and system embodiments, and so the description is relatively simple, and so reference may be made to some of the descriptions of the other embodiments for related points.

It should be understood that an element described herein in the singular or shown in the figures only represents that the element is limited in number to one. Furthermore, modules or elements described or illustrated herein as separate may be combined into a single module or element, and modules or elements described or illustrated herein as single may be split into multiple modules or elements.

It is also to be understood that the terms and expressions employed herein are used as terms of description and not of limitation, and that the embodiment or embodiments of the specification are not limited to those terms and expressions. The use of such terms and expressions is not intended to exclude any equivalents of the features shown and described (or portions thereof), and it is recognized that various modifications may be made within the scope of the claims. Other modifications, variations, and alternatives are also possible. Accordingly, the claims are to be regarded as covering all such equivalents.

Claims (20)

1. A touch pad for mounting on a housing of an electronic device, comprising:

a touch panel;

the pressure sensor is used for converting the deformation of the pressure sensor into a first electric signal when the touch panel bears pressure, and the first electric signal is used for calculating to obtain a pressure detection result;

the reinforcing plate is fixed below the touch panel, and a cantilever beam structure with steps is formed on the reinforcing plate and used for supporting the pressure sensor;

the force transmission part is fixed below the cantilever beam structure and used for enabling the cantilever beam structure to shift upwards when the touch panel bears pressure so as to drive the pressure sensor to elastically deform;

and the tactile feedback part is fixed below the touch panel and used for providing vibration feedback for the user according to the pressure detection result.

2. The touch panel of claim 1, wherein the stiffener is adhered to the lower surface of the touch panel by a first adhesive layer.

3. The touch panel of claim 1, wherein a plurality of cantilever structures are formed on the stiffener, and the plurality of cantilever structures are disposed on the stiffener near an edge region of the stiffener.

4. The touch panel of claim 3, wherein the plurality of cantilever structures comprise four cantilever structures, the four cantilever structures are respectively disposed at four corners of the stiffener or at a center of four sides of the stiffener, and the cantilever structures comprise cantilever regions extending inward from an edge region of the stiffener or outwardly from the edge of the stiffener.

5. The touchpad as defined in claim 4, wherein the cantilever structure has a fixed end and a free end disposed opposite to each other, the fixed end having a reinforced portion, and the fixed end having a thickness greater than that of the free end.

6. The trackpad of claim 4, wherein the cantilever region is not in the same plane as the connecting portion of the non-cantilever region of the cantilever beam structure.

7. The touch panel of claim 1, wherein at least four cantilever structures are formed on the stiffener, and the at least four cantilever structures are distributed on the stiffener in an axisymmetric manner.

8. The touch panel of claim 1, wherein the touch panel comprises a plurality of electrical components for implementing the touch detection function, and the reinforcing plate is provided with at least one first opening for allowing the plurality of electrical components to pass through.

9. The touch panel according to claim 1, wherein the touch panel includes a plurality of electrical components for implementing the touch detection function, and the reinforcing plate is provided with at least two second openings for allowing the plurality of electrical components to pass therethrough.

10. The trackpad of claim 1, wherein the force transmitting member comprises a damping member for absorbing aftershocks generated by the haptic feedback member.

11. The touch pad of claim 10, wherein the damping member is a silicone pad having two opposing surfaces with double-sided adhesive tape.

12. The touch panel of claim 1, further comprising a carrier plate disposed under the stiffener, wherein the carrier plate has a mounting surface adapted to the force transmission member and a first recess for receiving the cantilever structure.

13. The touch panel of claim 12, wherein a rib is formed on an edge region of the stiffener, and a second groove for receiving the rib is formed on the carrier plate.

14. The touch panel of claim 12, wherein the touch panel comprises a plurality of electrical components for implementing the touch detection function, a third opening is formed on the carrier plate for allowing the electrical components to pass through, and a limiting structure is disposed around the third opening for limiting a downward displacement of the touch panel when the touch panel is under pressure.

15. The touch panel of claim 2, wherein the touch panel comprises a protective layer and a touch functional layer; the touch functional layer is adhered to the lower surface of the protective layer through a second adhesive layer and used for detecting touch information.

16. The touch panel of claim 15, wherein the second adhesive layer and the second adhesive layer comprise double-sided tape or low temperature thermosetting tape.

17. An electronic device, comprising: a housing for mounting the trackpad and the trackpad of any of claims 1 to 16.

18. The electronic device according to claim 17, wherein a back surface of the housing is provided with a mounting surface for mounting the touch pad, the touch pad being mounted to the housing from the back surface of the housing through the mounting surface.

19. The electronic device of claim 17, wherein the housing is provided with a mounting groove for receiving the touch pad, and an upper surface of the mounting groove is provided with a mounting surface adapted to the force transmission member and a plurality of openings for allowing electrical components on the touch pad to pass through.

20. The electronic device of claim 19, wherein a limiting structure is disposed on an upper surface of the mounting groove for limiting a downward displacement of the touch pad when the touch pad is under pressure.

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