WO2021203451A1

WO2021203451A1 - Touch control feedback apparatus and electronic device

Info

Publication number: WO2021203451A1
Application number: PCT/CN2020/084625
Authority: WO
Inventors: 丁祥; 陈勇勇; 高雪丽
Original assignee: 瑞声声学科技(深圳)有限公司; 瑞声科技(新加坡)有限公司
Priority date: 2020-04-09
Filing date: 2020-04-14
Publication date: 2021-10-14
Also published as: CN211956413U

Abstract

The present application relates to the technical field of touch control feedback, and relates in particular to a touch control feedback apparatus and an electronic device. The touch control feedback apparatus comprises a touch control panel, a mounting base which supports the touch control panel, a first magnet fixed on the mounting base, and a second magnet fixed on the touch control panel. An accommodating space is formed between the mounting base and the touch control panel. The first magnet and the second magnet are both accommodated within the accommodating space, and at least one of the first magnet and the second magnet comprises a coil assembly. When the coil assembly is powered on, the first magnet and the second magnet cooperate to drive the touch control panel to move along the direction perpendicular to the surface of the touch control panel. When a user touches the touch control panel, the coil assembly is powered on and produces a magnetic field, and a force perpendicular to the direction of the surface of the touch control panel is produced between the first magnet and the second magnet, so as to drive the touch control panel to move along the direction perpendicular to the surface of the touch control panel with respect to the mounting base, thereby producing sinking or rebounding force feedback, and improving the user experience.

Description

Touch feedback device and electronic equipment

Technical field

This application relates to the technical field of touch feedback, and in particular to a touch feedback device and electronic equipment.

Background technique

Nowadays, based on the appearance, versatility, and waterproof and dustproof performance of products, more and more products choose to use capacitive or resistive methods to achieve virtual touch, especially on keyboards and other products. The product has a high degree of acceptance.

technical problem

In the past, physical key products generally have micro-switches or shrapnel switches inside, so that when the user presses the key, the force of pressing and returning is obtained, so that the user can get force feedback. However, the existing touch-sensitive products are incapable of feedback on the virtual interface, and the user feels a great impact on the use of the product, and even affects the user's normal use of the product.

Therefore, it is necessary to provide a touch feedback device and electronic equipment.

Technical solutions

The purpose of the present application is to provide a touch feedback device and electronic equipment, which aims to solve the problem of no force feedback when the existing touch products are in use.

The technical solution of the present application is as follows: a touch feedback device is provided, including:

Touch panel

A mounting seat supporting the touch panel, and an accommodation space is formed between the mounting seat and the touch panel;

The first magnet fixed to the mounting base; and

A second magnet fixed to the touch panel;

The first magnet and the second magnet are both contained in the containing space, and at least one of the first magnet and the second magnet includes a coil assembly, and when the coil assembly is energized, the first magnet A magnet cooperates with the second magnet to drive the touch panel to move in a direction perpendicular to the surface of the touch panel.

Optionally, the winding plane of the coil component is parallel to the surface of the touch panel, and the first magnet and the second magnet are relatively spaced apart in a direction perpendicular to the winding plane.

Optionally, the first magnet and the second magnet are arranged directly opposite to each other.

Optionally, the coil assembly includes an iron core and a coil wound around the outer circumference of the iron core.

Optionally, one of the first magnet and the second magnet includes a magnet, and the other includes the coil assembly.

Optionally, the touch feedback device further includes an elastic member connected between the mounting base and the touch panel, and the mounting base supports the touch panel via the elastic member.

Optionally, the elastic member is a glue layer or a spring.

Optionally, the mounting seat includes a base opposite to the touch panel and spaced apart, and an extension part bent and extended from the edge of the base toward the touch panel, and the elastic member is sandwiched and connected to Between the extension part and the touch panel.

Optionally, the touch feedback device further includes a reset member elastically supported between the touch panel and the mounting seat, one end of the reset member is connected to the touch panel, and the other end is connected to the Mount connection.

Optionally, the touch feedback device includes a plurality of the first magnets and a plurality of the second magnets, and the first magnets and the second magnets are arranged in a one-to-one correspondence.

In addition, the present application also provides an electronic device, including the touch feedback device as described in any one of the above.

Beneficial effect

The beneficial effect of the present application is that when the user touches the touch panel, the coil assembly is energized and generates a magnetic field. Under the action of the magnetic field force, a force is generated between the first magnet and the second magnet. At the same time, the first magnet is fixed on the mounting base, and the second magnet is fixed on the touch panel. The force between the first magnet and the second magnet drives the touch panel to move relative to the mounting base in a direction perpendicular to the surface of the touch panel. , In order to generate force feedback, and improve the user's experience of using the electronic device with the touch feedback device. In addition, by setting the energization direction of the coil, the force between the first magnet and the second magnet can either drive the touch panel to move away from the mounting base to generate rebound force feedback, or drive the touch The panel moves in the direction close to the mounting base to generate the force feedback of the sinking, which provides the possibility for the user to choose different force feedback methods.

Description of the drawings

FIG. 1 is a schematic diagram of the structure of a touch feedback device in an embodiment of the application;

Fig. 2 is a cross-sectional view of the touch feedback device in Fig. 1 along the A-A direction;

Fig. 3 is a partial enlarged view of B in Fig. 2.

Embodiments of the present invention

The application will be further described below in conjunction with the drawings and implementations.

An embodiment of the present application provides a touch feedback device for an electronic device. The electronic device may be a keyboard, a mobile phone, or a computer. The touch feedback device can receive a user's touch input and provide force feedback.

As shown in FIGS. 1 to 3, the touch feedback device includes a touch panel 10, a mounting base 20, a first magnet 40 and a second magnet 60. The touch panel 10 is supported on the mounting base 20, and a receiving space 22 is formed between the touch panel 10 and the mounting base 20. Both the first magnet 40 and the second magnet 60 are accommodated in the accommodating space 22, the first magnet 40 is fixed on the mounting base 20, the second magnet 60 is fixed on the touch panel 10, and the first magnet 40 and the second magnet 60 At least one of them includes a coil assembly. When the coil assembly is energized, the first magnet 40 and the second magnet 60 cooperate to drive the touch panel 10 to move in a direction perpendicular to the surface of the touch panel 10.

When the user touches the touch panel 10, the coil assembly is energized and generates a magnetic field. Under the action of the magnetic field force, a force is generated between the first magnet 40 and the second magnet 60. At the same time, the first magnet 40 is fixed on the mounting base 20, and the second magnet 60 is fixed on the touch panel 10. The force between the first magnet 40 and the second magnet 60 drives the touch panel 10 to be perpendicular to the mounting base 20. Move in the direction of the surface of the touch panel 10 to generate force feedback and improve the user's experience of using the electronic device with the touch feedback device. In addition, by setting the energization direction of the coil 42, the force between the first magnet 40 and the second magnet 60 can drive the touch panel 10 to move away from the mounting base 20 to generate rebound force feedback, or It may be that the touch panel 10 is driven to move in a direction close to the mounting base 20 to generate the force feedback of the sinking, which provides the possibility for the user to select different force feedback modes.

Specifically, in this embodiment, the winding plane of the coil assembly is parallel to the surface of the touch panel 10, and the first magnet 40 and the second magnet 60 are arranged at a relative interval in a direction perpendicular to the winding plane. Inside the coil assembly, the magnetic line of force is perpendicular to the winding plane, and the winding plane is parallel to the surface of the touch panel 10, and the magnetic line of force inside the coil assembly is perpendicular to the surface of the touch panel 10, so that the first magnet 40 and the second magnet 60 are The force between them is basically perpendicular to the surface of the touch panel 10, so that the user mainly feels the force feedback in the direction perpendicular to the surface of the touch panel 10, and the user experience is enhanced.

Further, the first magnet 40 and the second magnet 60 are arranged directly opposite to each other. Preferably, the axis of the first magnet 40 coincides with the axis of the second magnet 60, so that the second magnet 60 faces the side of the first magnet 40 as much as possible. It is perpendicular to the lines of magnetic force, and the force between the first magnet 40 and the second magnet 60 in the direction perpendicular to the surface of the touch panel 10 is enhanced.

In this embodiment, only the first magnet 40 includes a coil assembly, and the second magnet 60 includes a magnet. The position of the coil assembly is always kept unchanged, so as to prevent the electrical connection structure of the coil assembly from being affected when the coil assembly moves, and to improve the working stability of the touch feedback device. Moreover, only the first magnet 40 includes the coil assembly, which can simplify the circuit structure. In other embodiments, both the first magnet 40 and the second magnet 60 may also include a coil assembly, or only the second magnet 60 includes a coil assembly, and the first magnet 40 includes a magnet.

Furthermore, the coil assembly includes a coil 42 and an iron core 44, and the coil 42 is wound around the outer circumference of the iron core 44. After the coil 42 is energized to generate a magnetic field, it magnetizes the iron core 44 inside the coil 42. The magnetic field generated by the magnetized iron core 44 and the magnetic field of the coil 42 are superimposed to enhance the magnetic properties of the first magnet 40, thereby strengthening the first magnet 40 and The force between the second magnets 60 forms a force feedback that meets the strength requirements.

In order to make the coil 42 conductive when the touch panel 10 receives a touch input, the coil 42 and the touch panel 10 may be directly electrically connected, for example, they may be connected by a touch IC, or may be indirectly electrically connected, for example, A microprocessor is used for electrical connection between the two.

In this embodiment, the magnet of the second magnet 60 is made of a magnetic material with strong magnetic permeability, so as to be quickly magnetized by the magnetic field of the first magnet 40 when the coil 42 is energized, so as to increase the feedback speed. Moreover, it is preferable to use a material that demagnetizes quickly, such as soft iron or silicon steel, to cut off the force between the coil 42 and the first magnet 40 in time when the coil 42 is de-energized, so that the feedback force is more coordinated with the touch input.

Mainly referring to FIG. 3, the touch feedback device further includes an elastic member 70 connected between the mounting base 20 and the touch panel 10, and the mounting base 20 supports the touch panel 10 via the elastic member 70. In this embodiment, the elastic member 70 is an adhesive layer, and the touch panel 10 is glued to the mounting base 20. The adhesive layer can not only support the touch panel 10 but also position the touch panel 10. When the touch panel 10 moves in a direction perpendicular to the surface of the touch panel 10, the adhesive layer will be slightly deformed. In other embodiments, the elastic member 70 may also be a spring.

The mounting base 20 includes a base opposite to the touch panel 10 and spaced apart, and an extension portion bent and extended from the edge of the base toward the touch panel 10. The elastic member 70 is sandwiched and connected between the extension portion and the touch panel 10. Specifically, in this embodiment, the elastic member 70 is supported on the side of the touch panel 10 facing the mounting seat 20. When the touch panel 10 moves in a direction perpendicular to its surface, the elastic member 70 is stretched or compressed. Preferably, the elastic member 70 is an annular glue layer, which can also play a sealing role and prevent dust or water vapor from entering the containing space 22. In other embodiments, the elastic member 70 may also be located on the side surface of the touch panel 10.

Moreover, in this embodiment, the touch panel 10 is located on a stepped surface, and the surface of the touch panel 10 is coplanar with the surface of the mounting base 20, which improves the surface flatness of the touch feedback device.

In addition, the touch feedback device further includes a reset member 80 for driving the touch panel 10 to reset when the coil 42 is powered off. The restoring member 80 may be a spring structure, or a columnar structure made of elastic materials such as rubber.

Specifically, the resetting member 80 is elastically supported between the touch panel 10 and the mounting base 20. One end of the resetting member 80 is connected to the touch panel 10, and the other end is connected to the mounting base 20. The resetting member 80 is always connected to the touch panel 10 and The mounting base 20 is connected to make the touch panel 10 move more smoothly. When the touch panel 10 moves in a direction perpendicular to its surface, the reset member 80 is deformed by force and stores elastic potential energy. After the coil 42 is powered off, the resetting member 80 releases elastic potential energy to drive the touch panel 10 to reset. In other embodiments, the reset member 80 may also be spaced apart from the touch panel 10 or the mounting base 20, and only contact with the touch panel 10 and the mounting base 20 after the touch panel 10 moves a certain distance closer to the mounting base 20 .

It should be noted that in this embodiment, the force between the first magnet 40 and the second magnet 60 only drives the touch panel 10 to move in one direction, and the reset member 80 drives the touch panel 10 to reset, and the coil 42 The resetting element 80 can respond in time after the power is off, and the coil 42 only receives current in the same direction, which can simplify the control program and circuit structure. In other embodiments, the reset of the touch panel 10 can also be realized by changing the energizing direction of the coil 42. For example, if the coil 42 is energized when the touch panel 10 receives a touch input to generate a force that drives the touch panel 10 to move away from the mounting base 20, after the force feedback is over, the coil 42 is energized in the opposite direction. , The direction of the magnetic field of the first magnet 40 will change, thereby driving the touch panel 10 to reset in a direction close to the mounting base 20.

It should be noted that the above description only takes one first magnet 40 and one second magnet 60 correspondingly arranged as an example, but the touch feedback device is not limited to only including one first magnet 40 and one second magnet 60. There can be multiple first magnets 40 and second magnets 60. Each first magnet 40 corresponds to each second magnet 60, and each group of first magnet 40 and second magnet 60 corresponds to the touch panel 10 One touch position, so that the user can get force feedback when touching different positions of the touch panel 10. The touch panel 10 selects flexible materials to generate displacement locally to form force feedback.

The above are only the implementation manners of this application. It should be pointed out here that for those of ordinary skill in the art, improvements can be made without departing from the creative concept of this application, but these all belong to this application. The scope of protection.

Claims

A touch feedback device, characterized by comprising:

Touch panel

A mounting seat supporting the touch panel, and an accommodation space is formed between the mounting seat and the touch panel;

The first magnet fixed to the mounting base; and

A second magnet fixed to the touch panel;

The first magnet and the second magnet are both contained in the containing space, and at least one of the first magnet and the second magnet includes a coil assembly, and when the coil assembly is energized, the first magnet A magnet cooperates with the second magnet to drive the touch panel to move in a direction perpendicular to the surface of the touch panel.
The touch feedback device of claim 1, wherein the winding plane of the coil component is parallel to the surface of the touch panel, and the first magnet and the second magnet are perpendicular to the surface of the touch panel. Relatively spaced in the direction of the winding plane.
3. The touch feedback device of claim 2, wherein the first magnet and the second magnet are arranged directly opposite to each other.
The touch feedback device according to any one of claims 1 to 3, wherein the coil assembly comprises an iron core and a coil wound around the iron core.
The touch feedback device of claim 1, wherein one of the first magnet and the second magnet includes a magnet, and the other includes the coil assembly.
The touch feedback device according to claim 1, wherein the touch feedback device further comprises an elastic member connected between the mounting seat and the touch panel, and the mounting seat is connected to the touch panel via the elastic member. Supporting the touch panel.
7. The touch feedback device of claim 6, wherein the elastic member is a glue layer or a spring.
The touch feedback device according to claim 6, wherein the mounting base comprises a base opposite to the touch panel and spaced apart, and a base bent and extended from the edge of the base toward the touch panel. The extension part, the elastic member is sandwiched and connected between the extension part and the touch panel.
The touch feedback device according to claim 1 or 6, wherein the touch feedback device further comprises a reset member elastically supported between the touch panel and the mounting seat, and the reset member One end is connected with the touch panel, and the other end is connected with the mounting base.
The touch feedback device of claim 1, wherein the touch feedback device comprises a plurality of the first magnets and a plurality of the second magnets, and the first magnets and the second magnets The magnets are arranged in one-to-one correspondence.
An electronic device, characterized by comprising the touch feedback device according to any one of claims 1-10.