CN217591270U - Touch device and electronic product - Google Patents

Abstract

The application belongs to the technical field of touch control, and particularly relates to a touch control device and an electronic product, wherein the touch control device comprises a substrate, a stress amplification plate and a touch control panel, wherein a plurality of pressure sensors arranged in an array mode are arranged on one surface of the substrate; the stress amplifying plate covers the pressure sensor and is connected with the substrate, and a stress amplifying structure is arranged at a position of the stress amplifying plate corresponding to the pressure sensor; the touch panel covers the surface of the stress amplification plate, which is back to the pressure sensor, and is connected with the stress amplification plate. The touch device adopts a pressure touch induction and stress amplification mode, and the pressure touch induction adopts a force transmission mode to perform touch induction, so that the touch device can meet the use requirements of metal panels and underwater touch, and meanwhile, the sensitivity and accuracy of touch of the touch device can be improved due to the design of a stress amplification structure.

Description

Touch device and electronic product

Technical Field

The application belongs to the technical field of touch control, and particularly relates to a touch control device and an electronic product.

Background

The use of the touch screen greatly increases the man-machine interaction efficiency, and from the earliest resistive touch screen to the capacitive touch screen which is commonly used at present, the capacitive touch screen is widely applied to electronic equipment such as mobile phones, flat panels, watches, vehicle-mounted displays, advertisement display screens and the like; with the improvement of living standard of people, the requirements for human-computer interaction are higher and higher, for example, sliding operation is realized on a metal panel, and sliding operation is performed on underwater equipment in underwater exploration, but the current capacitive touch screen cannot be used on the metal panel and the underwater equipment, for example: metal-panel headphones cannot perform sliding touch operations, for example: when the mobile phone and the watch are used underwater, some underwater display devices or some devices needing underwater touch application design cannot realize accurate touch operation.

SUMMERY OF THE UTILITY MODEL

An object of the application is to provide a touch device and an electronic product, aiming at solving the technical problem that touch operation in the prior art can not be applied to metal panels and underwater equipment.

In order to achieve the purpose, the technical scheme adopted by the application is as follows: a touch device comprises a substrate, a stress amplification plate and a touch panel, wherein a plurality of pressure sensors arranged in an array are arranged on one surface of the substrate; the stress amplification plate covers the pressure sensor and is connected with the substrate, and a stress amplification structure is arranged at a position of the stress amplification plate corresponding to the pressure sensor; the touch panel covers the surface of the stress amplification plate, which is back to the pressure sensor, and is connected with the stress amplification plate.

Optionally, a surface of the stress amplifying plate is provided with a groove extending along a length direction and/or a width direction, and the groove forms the stress amplifying structure.

Optionally, the pressure sensors are disposed on the surface of the substrate in a linear array.

Optionally, the pressure sensors are disposed on the surface of the substrate in a matrix array.

Optionally, the grooves are arranged in a criss-cross manner, and the intersections of the grooves are arranged in one-to-one correspondence with the pressure sensors.

Optionally, the touch panel is a metal plate, a plastic plate, a ceramic plate, a glass plate, or an LCM display module.

Optionally, the pressure sensor is a piezoresistive ink pressure sensor, a membrane pressure sensor, a capacitive pressure sensor, or an inductive pressure sensor.

Optionally, the stress amplification plate is connected with the substrate through glue, and the stress amplification plate is connected with the touch panel through glue.

Optionally, the substrate is a flexible circuit board.

One or more technical solutions in the touch device provided by the present application have at least one of the following technical effects: the touch device comprises a touch panel, a stress amplifying piece and a substrate which are stacked, wherein a plurality of pressure sensors are arranged between the stress amplifying piece and the substrate, when the touch device is used specifically, when a user slides, touches and the like on the touch panel, an acting force is applied to the touch panel, the touch panel transmits the acting force to the stress amplifying piece, so that the stress amplifying piece generates micro deformation, the pressure sensors detect the micro deformation and convert the micro deformation into electrical signals, and pressure touch induction is realized; meanwhile, the stress amplifying plate is provided with the stress amplifying structure, so that when the stress amplifying plate is subjected to acting force, the deformation of the stress amplifying plate can be amplified at the stress amplifying structure, the stress sensor can detect the stress deformation more easily, and the sensitivity and the accuracy of the touch device are improved; the touch device adopts a pressure touch induction and stress amplification mode, and the pressure touch induction adopts a transmission mode of action force to carry out touch induction, so that the touch device can meet the touch use requirements of a metal panel and underwater, and can also meet normal use environments and high-temperature use environments, the touch device can be suitable for different use environments, and the universality and the application range of the touch device are greatly improved; meanwhile, the sensitivity and accuracy of touch control of the touch control device can be improved due to the design of the stress amplifying structure.

Another technical scheme adopted by the application is as follows: an electronic product comprises the touch device.

The utility model provides an electronic product, owing to adopt foretell touch device, promptly through the mode that adopts pressure touch-control response, and pressure touch-control response adopts the transmission mode of acting force to carry out touch-control response, the event can satisfy metal panel and underwater touch-control operation requirement, also can satisfy normal use environment and high temperature service environment certainly, this electronic product can be applicable to under water promptly, under different service environment such as metal panel and high temperature, the commonality and the application scope of this electronic product have been improved greatly, and simultaneously, the design of stress amplification structure, also can improve the sensitivity and the accuracy of this electronic product touch-control.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is a schematic structural diagram of a touch device according to an embodiment of the present disclosure.

Fig. 2 is an exploded view of the touch device shown in fig. 1.

Fig. 3 is a schematic structural diagram of a touch device according to another embodiment of the present disclosure.

Fig. 4 is an exploded view of the touch device shown in fig. 3 from a first perspective.

Fig. 5 is an exploded view of the touch device shown in fig. 3 from a second viewing angle.

Wherein, in the figures, the respective reference numerals:

10-substrate 11-connecting part 20-stress amplifying plate

21-stress amplification structure 30-touch panel 40-glue structure

50-housing 60-pressure sensor 211-recess.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present application and should not be construed as limiting the present application.

In the description of the present application, it is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings, which is for convenience and simplicity of description, and does not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, is not to be considered as limiting.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In the related technology, the capacitive touch technology works by utilizing current induction of a human body, the touch technology of the projection type capacitive panel and the projection type capacitive touch screen etch two ITO conductive circuits which are perpendicular to each other on two layers of ITO conductive glass coatings, and the two ITO conductive circuits which are perpendicular to each other can be regarded as sliding strips which continuously change in the X direction and the Y direction. When current passes through one conductive circuit in the driving line, if the outside has a signal of capacitance change, the capacitance node on the other layer of conductive circuit is changed; the variation of the detected capacitance can be obtained by the measurement of the electronic circuit connected with the capacitance, and then converted into digital signals by the A/D controller to make the computer perform the operation processing to obtain the position of the (X, Y) axis, thereby achieving the purpose of positioning. However, this capacitive touch technology cannot be implemented in metal and underwater.

The embodiment of the application provides a touch device, which can realize touch operation in metal and underwater use environments.

As shown in fig. 1 to 5, in one embodiment of the present application, a touch device is provided, which is generally disposed in an electronic product, for example: headset, cell-phone, wrist-watch, display device or other equipment that need load the touch function under water, wherein, touch-control refers to and slides, touches or other gestures in predetermined touch area to make the electronic product carry out by oneself and correspond gesture matched with function, for example: zooming in, zooming out, exiting, entering and the like.

Referring to fig. 3 to 5, a touch device according to an embodiment of the present disclosure includes a substrate 10, a stress amplifying plate 20, and a touch panel 30, wherein a plurality of pressure sensors 60 are disposed in an array on a surface of the substrate 10; the stress amplifying plate 20 covers the pressure sensor 60 and is connected with the substrate 10, and a stress amplifying structure 21 is arranged at the position of the stress amplifying plate 20 corresponding to the pressure sensor 60; the touch panel 30 covers a surface of the stress amplification plate 20 opposite to the pressure sensor 60, and is connected to the stress amplification plate 20. The substrate 10, the stress amplification plate 20 and the touch panel 30 may be a plate-shaped structure with a circular shape, a triangular shape, an oval shape, a rectangular shape or other shapes.

As will be further described below, the touch device according to the embodiment of the present application includes a touch panel 30, a stress amplifying member, and a substrate 10 stacked together, wherein a plurality of pressure sensors 60 are disposed between the stress amplifying member and the substrate 10, so that when in specific use, a user slides, touches or the like on the touch panel 30, an acting force is applied to the touch panel 30, the touch panel 30 transmits the acting force to the stress amplifying member, so that the stress amplifying member generates a micro deformation, and the pressure sensors 60 detect the micro deformation and convert the micro deformation into an electrical signal, thereby implementing a pressure touch sensing; meanwhile, since the stress amplifying plate 20 is provided with the stress amplifying structure 21, when the stress amplifying plate 20 is subjected to an acting force, the stress amplifying structure 21 amplifies the deformation of the stress amplifying plate 20, so that the pressure sensor 60 can detect the stress deformation more easily, and the sensitivity and the accuracy of the touch device are improved; the touch device of the embodiment of the application adopts a pressure touch induction and stress amplification mode, and the pressure touch induction adopts a transmission mode of action force to perform touch induction, so that the touch device can meet the touch use requirements of a metal panel and underwater, and can also meet normal use environments and high-temperature use environments, the touch device can be suitable for different use environments, and the universality and the application range of the touch device are greatly improved; meanwhile, the design of the stress amplifying structure 21 can also improve the touch sensitivity and accuracy of the touch device.

It should be explained that the substrate 10 can be used as a mounting base of the pressure sensor 60 and can communicate with a control unit inside an electronic product, and during touch operation, the substrate 10 transmits an electrical signal converted by the pressure sensor 60 to the control unit, and the control unit receives the electrical signal to execute a corresponding function; thus, touch operation is realized.

In this embodiment, the touch device further includes a housing 50, the housing 50 has a mounting cavity, the touch panel 30, the stress amplifying member and the substrate 10 are sequentially stacked and disposed in the housing 50, and the touch panel 30 seals an opening of the mounting cavity, where it should be noted that the housing 50 may be directly used as a part of the housing 50 of the electronic product, or may be a part of the touch device, and when mounting, the housing 50 is directly mounted on the electronic product; in addition, the casing 50 can also improve the general and special performances of the touch device, such as water resistance, falling resistance and the like.

In another embodiment of the present application, referring to fig. 5, a groove 211 extending along a length direction and/or a width direction is formed on a surface of the stress amplifying plate 20 of the touch device, and the groove 211 forms a stress amplifying structure 21. Specifically, the groove 211 extends in the length direction of the stress amplification plate 20, or the groove 211 extends in the width direction of the stress amplification plate 20; alternatively, the stress amplifying plate 20 is provided with both the groove 211 extending in the longitudinal direction and the groove 211 extending in the width direction; and, because the stress amplification piece is along the recess 211 that length direction and/or width direction set up, the structural strength of stress amplification piece has been reduced in the setting of recess 211, and simultaneously, the stress of stress amplification board 20 also concentrates in recess 211 department easily for the pressure amplification board takes place to warp more easily, is favorable to enlargiing the small deformation, thereby makes pressure sensor 60 can detect the small deformation fast accurately, and then makes pressure sensor 60 can catch touch-control operation accurately, realizes metal panel or underwater equipment high sensitivity's touch-control operation. The stress amplifying structure 21 amplifies the sensitivity of the sensor by concentrating stress through a slotted structure. The number of the grooves 211 is one, two, or more than three, the specific number of the grooves 211 is not limited, and the shape of the grooves 211 may be rectangular, circular, polygonal, etc., and in other embodiments, the grooves 211 may also have other shapes, which are not limited herein.

In this embodiment, the touch device may adopt a function of enabling an electronic product to apply a sliding touch under water by increasing the high sensitivity of the pressure sensor 60 and by the amplification of the groove 211.

In another embodiment of the present application, referring to fig. 1 and 2, the pressure sensors 60 of the touch device are provided in a linear array on the surface of the substrate 10. Specifically, the pressure sensors 60 are sequentially disposed on the surface of the substrate 10 at intervals along a straight line, and the touch panel 30 forms a strip-shaped touch area at a position corresponding to the distribution area of the pressure sensors 60, so that during touch operation, the pressure sensors 60 slide along the length direction of the touch area, and touch actions can be captured by the pressure sensors 60, thereby realizing touch operation in one direction, i.e., one-dimensional touch operation.

In this embodiment, the number of the pressure sensors 60 may be two, three, or more than four, the pressure sensors 60 are uniformly distributed at intervals along a straight line, and the specific number thereof may be selected according to actual situations, which is not limited herein.

In another embodiment of the present application, the pressure sensors 60 of the touch device are provided on the surface of the substrate 10 in a matrix array. The pressure sensors 60 are sequentially spaced along two mutually perpendicular directions, and rectangular touch areas are correspondingly formed on the touch panel 30, so that during touch operation, the touch operation slides in one direction of the touch areas, namely, one-dimensional touch operation is realized; the touch operation slides in two directions of the touch area, namely, the two-dimensional touch operation is realized.

In some embodiments, the number of arrays of pressure sensors 60 may be 2*2, 3*3, 4*4, or other N × M, where N and M are natural numbers.

In another embodiment of the present application, with reference to fig. 5, the grooves 211 of the touch device are provided in a crisscross arrangement. Specifically, recess 211 vertically and horizontally staggered sets up, and on the one hand, its fluting structure is regular convenient preparation, and on the other hand, recess 211 all has the distribution in the width direction and the length direction of stress amplification board 20, and recess 211 distribution uniformity is good, and stress amplification board 20 any position receives the effort, all can take place great deformation to guarantee that pressure sensor 60 can accurately catch corresponding deformation, reduce the touch-control dead angle, improve the sensitivity of touch-control.

In the present embodiment, the surface of the stress amplification plate 20 facing the touch panel 30 is provided with a groove 211, or the surface of the stress amplification plate 20 facing the pressure sensor 60 is provided with a groove 211; alternatively, the surface of the stress amplifying board 20 facing the touch panel 30 is provided with a groove 211, and the surface facing the pressure sensor 60 is provided with a groove 211, and the arrangement of the groove 211 can be selected according to actual situations, which is not limited herein.

In another embodiment of the present application, as shown in fig. 5, the intersecting portion of the grooves 211 of the touch device is provided to be disposed in one-to-one correspondence with the pressure sensors 60. Specifically, when the stress amplifying plate 20 receives the acting force transmitted from the touch panel 30, the material accumulation at the intersection of the grooves 211 is the least, and the deformation at the intersection of the grooves 211 is the largest, so that the pressure sensor 60 can quickly and accurately capture the touch operation, and the sensitivity of the touch operation is improved.

In the present embodiment, the touch panel 30 is a metal plate, a plastic plate, a glass plate or an LCM display module. Specifically, the touch panel 30 may be made of various materials such as metal, plastic, ceramic, and glass, or an LCM display module, wherein the LCM display module can be used for displaying a human-computer interaction interface.

In the present embodiment, the pressure sensor 60 is a piezoresistive ink type pressure sensor, a membrane pressure sensor, a capacitive pressure sensor, or an inductive pressure sensor. The film pressure sensor may be an FSR pressure sensor, a MEMS pressure sensor, or a strain gauge, etc. other sensors capable of detecting pressure, however, in other embodiments, the pressure sensor 60 may also be other types of sensors, that is, the pressure sensor 60 may be any type of commercially available pressure sensor, and is not limited herein.

In another embodiment of the present application, as shown in fig. 4 and 5, the stress amplification plate 20 of the touch device is connected to the substrate 10 by glue; the stress amplification plate 20 is connected with the substrate 10 through the glue structure 40, and on one hand, the glue connection is simple in operation and convenient to manufacture; on the other hand, when the stress amplification plate 20 is deformed, the deformation can be quickly transmitted to the pressure sensor 60, and the pressure sensor 60 sends out an electrical signal after being recognized and deformed, so that pressure touch sensing is realized, and the sensitivity of the touch device is improved. Specifically, the stress amplification plate 20 and the substrate 10 may be connected by a back, hard, epoxy, or other adhesive structure 40.

In another embodiment of the present application, as shown in fig. 4 and 5, the stress amplifying plate 20 and the touch panel 30 of the touch device are connected by glue. The stress amplification plate 20 is connected with the touch panel 30 through the adhesive structure 40, and on one hand, the adhesive connection is simple in operation and convenient to manufacture; on the other hand, after the touch panel 30 is stressed, the touch panel 30 can rapidly transmit the acting force to the stress amplification plate 20 through the adhesive structure 40, and after the stress amplification plate 20 is deformed, the pressure sensor 60 recognizes that the deformation is generated and then sends an electrical signal, so that pressure touch sensing is realized, and the sensitivity of the touch device is improved. Specifically, the stress amplification plate 20 and the substrate 10 may be connected by a back, hard glue, epoxy glue film or other glue structure 40.

In another embodiment of the present application, the substrate 10 of the touch device is a flexible circuit board. The substrate 10 adopts a structure form of a flexible circuit board, and can deform along with the stress amplification board 20, so that the deformation of the stress amplification board 20 is more free, and the touch sensitivity of the touch device is improved; in addition, the pressure sensor 60 may also be electrically connected to a control unit of an electronic product through the flexible circuit boards, thereby completing a touch operation; specifically, the flexible circuit board is further provided with a connecting portion 11 leading out of the housing 50, and the connecting portion 11 is configured to be electrically connected with a control unit of the electronic product.

In another embodiment of the present application, an electronic product is provided, which includes the touch device.

The electronic product of the embodiment of the application, owing to adopt foretell touch device, through adopting the mode of pressure touch-control response promptly, and pressure touch-control response is that the transmission mode that adopts the power carries out touch-control response, so can satisfy metal panel and underwater touch-control operation requirement, also can satisfy normal service environment and high temperature service environment certainly, this electronic product can be applicable to under water promptly, under different service environment such as metal panel and high temperature, the commonality and the application scope of this electronic product have been improved greatly, and simultaneously, the design of stress amplification structure 21, also can improve the sensitivity and the accuracy of this electronic product touch-control. Since the electronic product in the embodiment of the present application adopts all technical solutions of all the embodiments described above, all the beneficial effects brought by the technical solutions of the embodiments described above are also achieved, and are not described in detail herein.

The present application is intended to cover various modifications, equivalent arrangements, and adaptations of the present application without departing from the spirit and scope of the present application.

Claims (10)

1. A touch device, comprising: comprises the steps of (a) preparing a mixture of a plurality of raw materials,

the pressure sensor array comprises a substrate, wherein a plurality of pressure sensors arranged in an array are arranged on one surface of the substrate;

the stress amplification plate covers the pressure sensor and is connected with the substrate, and a stress amplification structure is arranged at a position of the stress amplification plate corresponding to the pressure sensor;

the touch panel covers the surface of the stress amplification plate, which is back to the pressure sensor, and is connected with the stress amplification plate.

2. The touch device of claim 1, wherein: and grooves extending along the length direction and/or the width direction are formed in the surface of the stress amplification plate, and the grooves form the stress amplification structure.

3. The touch device of claim 1, wherein: the pressure sensors are arranged on the surface of the substrate in a linear array.

4. The touch device of claim 2, wherein: the pressure sensors are arranged on the surface of the substrate in a matrix array.

5. The touch device of claim 2, wherein: the grooves are arranged in a criss-cross mode, and the intersection positions of the grooves are arranged in one-to-one correspondence with the pressure sensors.

6. The touch device according to any one of claims 1 to 5, wherein: the touch panel is a metal plate, a plastic plate, a ceramic plate, a glass plate or an LCM display module.

7. The touch device according to any one of claims 1 to 5, wherein: the pressure sensor is a piezoresistive ink type pressure sensor, a film pressure sensor, a capacitance type pressure sensor or an inductance type pressure sensor.

8. The touch device according to any one of claims 1 to 5, wherein: the stress amplification plate is connected with the substrate through glue, and the stress amplification plate is connected with the touch panel through glue.

9. The touch device according to any one of claims 1 to 5, wherein: the substrate is a flexible circuit board.

10. An electronic product, characterized in that: comprising the touch device according to any one of claims 1 to 9.

Images