Virtual key structure and electronic device
Through the virtual key structure, the pressure sensing module is used to detect pressure signals, and the problem of excessive volume and false touch caused by the button control method in the prior art is solved, and the precise control and miniaturization of electronic equipment are realized.
Patent Information
- Application Number
- CN202420664517.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-02
- Publication Date
- 2025-04-11
- Estimated Expiration
- 2034-04-02
AI Technical Summary
The key control methods of existing electronic devices have problems with excessive volume and false touching. The solid keys cause the equipment to be too large, while the capacitive keys are prone to false touching.
The virtual key structure is adopted to detect the pressure signal of the pressure component through the pressure sensing module, and obtain the pressure signal in the key area, which is used to control electronic devices.
It reduces the occurrence of false touches, realizes precise control of keys, supports various functions such as sliding, clicking, double-clicking, and long-pressing, and does not require physical keys and through holes, helps to miniaturize the design and improves waterproof and dustproof functions.
Smart Images
Figure CN222750424U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of key design, and in particular to a virtual key structure and an electronic device using the virtual key structure. Background Art
[0002] With the development of science and technology, some electronic products such as headphones, electric toothbrushes, hair dryers, tablet computers, mobile phones and electronic pens have become indispensable daily necessities or office supplies for people. At present, in the prior art, electronic devices are provided with buttons for control, and the button control method is usually physical buttons or capacitive buttons for control. However, physical buttons will cause the overall size of the electronic pen to be too large, and capacitive buttons are prone to control mis-touch and other problems. Therefore, the button control method of the existing electronic equipment has certain defects and needs to be improved. Utility Model Content
[0003] The embodiments of the present application provide a virtual key structure and an electronic device, which can use a pressure sensing module to detect the pressure signal of a pressing component, thereby obtaining the pressure of the key area for control, so as to solve the problem of the electronic pen being too large due to physical keys and the problem of capacitive keys being easily accidentally touched.
[0004] In a first aspect, an embodiment of the present application provides a virtual key structure, the virtual key structure comprising:
[0005] A housing, wherein a mounting cavity is provided in the housing, and a key area is provided on an outer wall of the housing;
[0006] A bracket, the bracket is fixed in the installation cavity and arranged opposite to the key area;
[0007] a pressure sensing module, the pressure sensing module being fixedly disposed on a side of the bracket facing the key area; and
[0008] A pressing component, wherein two opposite sides of the pressing component are respectively in contact with a surface of the pressure sensing module facing away from the bracket and an upper wall of the housing in the key region;
[0009] When external force acts on the button area of the shell, the pressing component presses the pressure sensing module under the action of the inner wall of the shell in the button area, and the pressure sensing module is used to detect the pressure signal of the pressing component pressing the pressure sensing module.
[0010] In some embodiments, the pressing assembly includes a first abutment member and a second abutment member which are stacked together, wherein the first abutment member is arranged opposite to the inner wall of the shell in the button area, the second abutment member is connected to the bracket, the surface of the second abutment member facing away from the first abutment member abuts against the surface of the pressure sensing module facing away from the bracket, and the first abutment member and the second abutment member are partially spaced apart from each other relative to the wall surface.
[0011] In some embodiments, the second abutment member includes an abutment body and two elastic arms, the two elastic arms are respectively bent and connected to opposite ends of the abutment body, the two elastic arms are both abutted and fixed to the first abutment member, the surface of the abutment body facing away from the first abutment member abuts against the pressure sensing module, and the abutment body and the surface of the first abutment member facing the abutment body are spaced apart.
[0012] In some embodiments, the second abutment member has a first connection hole, the pressure sensing module has a second connection hole corresponding to the first connection hole, and the bracket has a third connection hole corresponding to the first connection hole;
[0013] The virtual key structure also includes a fastener, which passes through the first connecting hole, the second connecting hole and the third connecting hole in sequence to fix the second abutment member and the pressure sensing module to the bracket.
[0014] In some embodiments, the pressure sensing module is bonded and fixed to the second abutment member and the bracket.
[0015] In some of the embodiments, the virtual key structure further includes a capacitor layer, which is disposed between the pressure component and the inner wall surface of the shell and is arranged opposite to the key area, and the capacitor layer is electrically connected to the pressure sensing module.
[0016] In some embodiments, the pressure sensing module includes a plurality of pressure sensors, the plurality of pressure sensors are spaced apart on the bracket, and the pressure component covers and fits the plurality of pressure sensors.
[0017] In some embodiments, the pressure sensor is one of a resistive pressure sensor, a capacitive pressure sensor, and a piezoelectric pressure sensor.
[0018] In some embodiments, the virtual key structure further includes an actuator, which is disposed on the bracket and electrically connected to the pressure sensing module, and when the pressure value exceeds a preset pressure threshold, the actuator generates vibration feedback in the normal direction of the key area;
[0019] And / or, the shell is a hollow cylindrical structure, and the side wall surfaces of the bracket except the surface opposite to the key area are all in contact with the inner wall surface of the shell.
[0020] In a second aspect, an embodiment of the present application provides an electronic device, which includes the virtual key structure as described above.
[0021] In the technical solution of the virtual key structure and electronic device of the present application, the pressure sensing module is installed on a bracket set relative to the key area of the shell, and at the same time, it is ensured that the opposite sides of the pressing component are respectively in contact with the surface of the pressure sensing module away from the bracket and the inner wall of the shell. Therefore, when the user applies external force to the key area of the shell, the pressing component directly presses the pressure sensing module under the action of the inner wall of the shell in the key area, and the pressure sensing module can detect the pressure signal of the pressing component pressing on the pressure sensing module, thereby indirectly obtaining the pressure signal of the key area, so that the pressure signal can be compared with the preset pressure threshold to achieve key control, thereby reducing the occurrence of false touches compared to capacitive keys, and in addition, the pressure signal can be compared with multiple pressure thresholds to achieve precise control of different modes such as sliding, clicking, double-clicking, and long pressing, so as to meet the use requirements of multiple functions. At the same time, this pressure control design method does not need to set physical buttons and open through holes on the shell, which solves the problem that the physical buttons cause the electronic device to be too large, helps the design of miniaturization of the electronic device, and improves the waterproof and dustproof function of the electronic device. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.
[0023] Figure 1 This is a structural diagram of an embodiment of a virtual key structure of the present application;
[0024] Figure 2 A partial cross-sectional view of the virtual key structure of the present application;
[0025] Figure 3 This is a schematic diagram of the structure of the virtual key structure of the present application after the outer shell is removed;
[0026] Figure 4 This is a schematic diagram of the exploded structure of the virtual key structure of the present application after the outer shell is removed;
[0027] Figure 5A partial cross-sectional view of another embodiment of the virtual key structure of the present application;
[0028] Figure 6 This is a schematic diagram of the exploded structure of another embodiment of the virtual key structure of the present application after the outer shell is removed.
[0029] Description of Figure Numbers:
[0030] 100, virtual key structure; 10, housing; 10A, key area; 10a, mounting cavity; 20, bracket; 20a, third connecting hole; 30, pressure sensing module; 30a, second connecting hole; 40, pressing assembly; 41, first abutting member; 42, second abutting member; 421, abutting body; 422, elastic arm; 42a, first connecting hole; 50, capacitor layer; 60, fastener; 70, adhesive layer.
[0031] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION
[0032] In order to make the objectives, technical solutions and advantages of the present application clearer, the following part will further describe the embodiments of the present application in detail in conjunction with the accompanying drawings.
[0033] When the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present application. Instead, they are only examples of devices and methods consistent with some aspects of the present application as detailed in the attached claims.
[0034] In the description of the present application, it should be understood that the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to the specific circumstances. In addition, in the description of the present application, unless otherwise specified, "multiple" refers to two or more. "And / or" describes the association relationship of associated objects, indicating that three relationships may exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. The character " / " generally indicates that the objects associated before and after are in an "or" relationship.
[0035] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used in this specification are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.
[0036] With the development of science and technology, some electronic products such as headphones, electric toothbrushes, hair dryers, tablet computers, mobile phones and electronic pens have become indispensable daily necessities or office supplies for people. At present, in the prior art, electronic devices are provided with buttons for control, and the button control method is usually physical buttons or capacitive buttons for control. However, physical buttons will cause the overall size of the electronic pen to be too large, and capacitive buttons are prone to control mis-touch and other problems. Therefore, the button control method of the existing electronic equipment has certain defects and needs to be improved.
[0037] Therefore, the embodiment of the present application provides a virtual key structure 100 and an electronic device, which improve the key control method to solve the problem of physical keys causing the electronic device to be too large and the problem of capacitive keys being easily touched by mistake.
[0038] Reference Figure 1 In the first aspect, the electronic device of the present application can be headphones, electric toothbrushes, hair dryers, tablet computers, mobile phones, and electronic pens. In the following, the electronic device is an electronic pen as an example. The electronic pen includes a pen head and a pen holder connected to each other. The pen head is used to contact the touch screen of smart devices such as tablet computers and mobile phones, and the pen holder is used for users to hold. The virtual key structure 100 is set on the pen holder, so that the user can control the function of the electronic device by operating the virtual key structure 100, such as turning on and off or adjusting the trajectory (straight line or curve) and thickness of the strokes of the electronic device.
[0039] Reference Figures 1 to 3 In the second aspect, the virtual key structure 100 of the present application includes a housing 10 , a bracket 20 , a pressure sensing module 30 and a pressing component 40 .
[0040] It should be noted that the shell 10 can be directly used as the shell 10 of the pen holder for the user to hold. Alternatively, the shell 10 is only a partial shell of the pen holder. An installation cavity 10a is provided in the shell 10, and the installation cavity 10a is used to carry components such as the protective bracket 20, the pressure sensing module 30 and the pressing component 40. The shell 10 can be made of non-metallic materials such as plastic materials, so that the shell 10 can meet the ability of various tests such as falling, twisting and sitting pressure without being damaged, while avoiding the mass of the shell 10 being too large, so that the user can hold and use it. It should be noted that the material of the shell 10 is not limited to a certain one. The commonly used shell 10 materials in the field can be applied to the embodiments of the utility model, and they are not listed one by one here. In addition, the outer wall surface of the shell 10 is provided with a button area 10A, and the button area 10A can be specifically provided with a protrusion or a groove on the outer surface of the shell 10 to form a font or symbol or pattern and other identification structures, so that the user can identify and press. The shape of the key area 10A varies with the shape of the housing 10. For example, when the housing 10 is a rectangular parallelepiped, the pressing area should be a square ring structure. When the housing 10 is a cylinder, the key area 10A can be a circular ring, and so on.
[0041] The bracket 20 can be fixed in the mounting cavity 10a of the housing 10 by interference fit to ensure the position stability of the bracket 20 in the mounting cavity 10a and improve the overall structural strength of the housing 10. At the same time, the bracket 20 can also be used for assembly of components such as the pressure sensing module 30 to ensure the stability of the pressure sensing module 30 in the mounting cavity 10a. In the specific installation, the pressure sensing module 30 can be installed on the bracket 20 first, so that when the bracket 20 is installed in the mounting cavity 10a of the housing 10, the pressure sensing module 30 and the pressing component 40 can be installed in the mounting cavity 10a simultaneously, so that there is no need to make the pressure sensing module 30 and the pressing component 40 separately assembled with the housing 10, so as to improve the efficiency of the early installation and subsequent disassembly. In addition, when the bracket 20 is located in the mounting cavity 10a, it is also arranged relative to the key area 10A, so that when the user presses the key area 10A, the external force can be transmitted to the bracket 20 to cause it to deform slightly, so that the bracket 20 and the inner wall of the housing 10 further generate abutting force.
[0042] The pressure sensing module 30 is fixed on the side of the bracket 20 facing the button area 10A, so that the pressure sensing module 30 is close to the side of the pressing area of the outer wall, so that the external force in the pressing area can be transmitted to the pressure sensing module 30 more quickly, thereby increasing the speed at which the pressure sensing module 30 detects the pressure signal.
[0043] The pressing component 40 can be directly installed on the surface of the pressure sensing module 30 away from the bracket 20, or the pressing component 40 can also be directly set on the inner wall surface of the housing 10 relative to the pressure sensing module 30. It is only necessary to ensure that the two opposite sides of the pressing component 40 are respectively in contact with the surface of the pressure sensing module 30 away from the bracket 20 and the inner wall of the housing 10 after installation, that is, the pressing component 40 is located between the pressure sensor group and the inner wall of the housing 10. After the external force acts on the key area 10A, a further abutting force is generated between the bracket 20 and the inner wall of the housing 10, so that the abutting force of the pressing component 40 on the pressure sensing module 30 is increased, so as to indirectly obtain the pressure signal of the key area 10A by detecting the pressure signal of the pressing component 40 pressing on the pressure sensing module 30.
[0044] In the technical solution of the virtual key structure 100 and the electronic device of the present application, the pressure sensing module 30 is mounted on the bracket 20 provided relative to the key area 10A of the housing 10, and at the same time, it is ensured that the opposite sides of the pressing component 40 are respectively in contact with the surface of the pressure sensing module 30 away from the bracket 20 and the inner wall of the housing 10. Therefore, when the user applies external force to the key area 10A of the housing 10, the pressing component 40 directly presses the pressure sensing module 30 under the action of the housing 10 abutting against the inner wall of the key area 10A, and the pressure sensing module 30 can detect the pressure signal of the pressing component 40 pressing on the pressure sensing module 30, thereby indirectly obtaining the pressure signal of the key area 10A, so that the pressure signal can be compared with the preset pressure threshold to realize key control, thereby reducing the occurrence of false touches compared with capacitive keys, and in addition, the pressure signal can be compared with multiple pressure thresholds to realize precise control of different modes such as sliding, clicking, double-clicking, and long pressing, so as to meet the use requirements of multiple functions. At the same time, this pressure control design method does not require the setting of physical buttons and the opening of through holes on the housing 10, which solves the problem that physical buttons cause the electronic device to be too large, helps to design the electronic device to be miniaturized, and improves the waterproof and dustproof function of the electronic device.
[0045] Reference Figures 2 to 4In some structural forms, the pressure component 40 includes a first abutment member 41 and a second abutment member 42 which are stacked, wherein the first abutment member 41 is arranged opposite to the inner wall of the housing 10 in the key area 10A, the second abutment member 42 is connected to the bracket 20, and the surface of the second abutment member 42 which is away from the first abutment member 41 abuts against the surface of the pressure sensing module 30 which is away from the bracket 20, wherein the first abutment member 41 is used to transmit the pressure of the key area 10A, and the second abutment member 42 is used to provide a pre-pressure on the pressure sensing module 30 to ensure the detection of the pressure sensing module 30. In this way, when the user applies an external force to the key area 10A of the housing 10, the first abutment member 41 is used to transmit the external force of the key area 10A to the second abutment member 42, and then the second abutment member 42 transmits the external force to the pressure sensing module 30. The first abutment member 41 and the second abutment member 42 are partially spaced relative to the wall. In this way, the contact area between the first abutting member 41 and the second abutting member 42 is reduced, thereby improving the effect (pressure) of the external force transmission, and further making the pressure transmitted by the second abutting member 42 to the abutting pressure sensing module 30 more obvious, so as to further improve the accuracy of the indirect detection of the pressure signal of the key area 10A. It should be noted that the first abutting member 41 and the second abutting member 42 can be made of metal materials such as iron or steel, so that the first abutting member 41 and the second abutting member 42 themselves are not easy to deform, so that when the external force is applied to the key area 10A, it is easier to transmit the external force to the pressure sensing module 30, thereby improving the detection accuracy of the pressure signal detected in the key area 10A.
[0046] Further, the second abutment member 42 includes an abutment body 421 and two elastic arms 422, the two elastic arms 422 are respectively bent and connected to the opposite ends of the abutment body 421, the two elastic arms 422 are fixedly abutted with the first abutment member 41, the surface of the abutment body 421 away from the first abutment member 41 abuts with the pressure sensing module 30, and the abutment body 421 and the surface of the first abutment member 41 facing the abutment body 421 are arranged at intervals. Among them, the abutment body 421 and the two elastic arms 422 can be an integral structure by injection molding or the like, that is, the overall structural strength of the second abutment member 42 is ensured, while the assembly process is omitted and the installation efficiency is improved. Of course, the abutment body 421 and the two elastic arms 422 can also be connected by screws or buckles, etc., for subsequent maintenance and replacement. The elastic arms 422 on both sides are used to receive the external force transmission of the first abutment member 41, and then the abutment body 421 transmits the external force to the pressure sensing module 30. In this way, the second abutting member 42 is subjected to balanced force during the abutting process and is not prone to shaking, thereby further improving the detection accuracy of the pressure signal obtained from the key area 10A.
[0047] Optionally, the second abutment member 42 has a first connection hole 42a, the pressure sensing module 30 has a second connection hole 30a corresponding to the first connection hole 42a, and the bracket 20 has a third connection hole 20a corresponding to the first connection hole 42a; the virtual key structure 100 further includes a fastener 60, which passes through the first connection hole 42a, the second connection hole 30a, and the third connection hole 20a in sequence to fix the second abutment member 42 and the pressure sensing module 30 to the bracket 20. The first connection hole 42a, the second connection hole 30a, and the third connection hole 20a may be threaded holes, and the fastener 60 may be a screw, and the second abutment member 42 is fixed to the pressure sensing module 30 and the bracket 20 by means of a screw. This fixing method is relatively simple to install and easy to disassemble, and is convenient for subsequent maintenance. It should be noted that the number of the first connection hole 42a, the second connection hole 30a and the third connection hole 20a can be multiple and correspond to each other, so that each fastener 60 can pass through the first connection hole 42a, the second connection hole 30a and the third connection hole 20a in sequence to improve the stability of the connection between the second abutment 42 and the pressure sensing module 30 and the bracket 20. Of course, in other embodiments, the second abutment 42 and the pressure sensing module 30 and the bracket 20 can also be fixed by a connection method commonly used in the field such as a pin connection or a rivet connection. Furthermore, when the fastener 60 is a screw, the nut of the screw can be accommodated between the relative walls of the first abutment 41 and the second abutment 42, so that the structure is more compact, space is saved, and the demand for miniaturization is met.
[0048] Reference Figure 5 and Figure 6 In another embodiment, the pressure sensing module 30 is bonded and fixed to the second abutment member 42 and the bracket 20. In this way, the pressure sensing module 30 can form an adhesive layer 70 by means of back glue or dispensing to fix the pressure sensing module 30 to the second abutment member 42 and the bracket 20. In this way, the above connection method not only ensures the stability of the connection between the pressure sensing module 30, the second abutment member 42 and the bracket 20, thereby improving the detection accuracy of the pressure signal, but also does not need to be fixed with the help of a connecting structural member (such as a screw or a buckle), thereby reducing the overall weight of the virtual key structure 100, which is convenient for users to use.
[0049] Reference Figures 2 to 4In some structural forms, the virtual key structure 100 also includes a capacitor layer 50, which is arranged between the inner wall surface of the shell 10 of the pressing component 40 and is arranged relative to the key area 10A, and the capacitor layer 50 is electrically connected to the pressure sensing module 30. Among them, the capacitor layer 50 can be a flexible circuit board, and the capacitor layer 50 is attached to the inner wall position of the shell 10 relative to the key area 10A, so that the capacitor layer 50 can be used for position detection function, and can also be used for sliding detection of the key area 10A. Through the cooperation of the capacitor layer 50 and the pressure sensing module 30, accurate force control of the precise position can be achieved, and an adjustable and graded key function can be achieved. At the same time, the pressing component 40 can abut the capacitor layer 50 and fix it to the inner wall surface of the shell 10 to improve the accuracy of the capacitor layer 50 in detecting the key area 10A.
[0050] Optionally, the pressure sensing module 30 includes a plurality of pressure sensors, which are spaced apart on the bracket 20, and the pressing assembly 40 covers and fits the plurality of pressure sensors. By providing a plurality of pressure sensors, the detection accuracy of the pressure signal can be further improved.
[0051] Furthermore, the pressure sensor is one of a resistive pressure sensor, a capacitive pressure sensor and a piezoelectric sensor. Since the working principle of the resistive pressure sensor is relatively simple and is usually composed of a sensitive resistor component, it has a simple structure, high reliability, and is easy to maintain and repair. Compared with other types of pressure sensors, it has a lower manufacturing cost and is therefore more economical. Therefore, the pressure sensor can preferably be a resistive pressure sensor, such as a strain gauge, a MEMS (Micro Electro Mechanical Systems) sensor, and a flexible pressure sensor.
[0052] In some structural forms, the virtual key structure 100 also includes an actuator (not shown), which is arranged on the bracket 20 and electrically connected to the pressure sensing module 30. When the pressure value exceeds the preset pressure threshold, the actuator generates vibration feedback in the normal direction of the key area 10A. In this way, when the pressure sensor detects that the pressure value exceeds the preset pressure threshold, the actuator generates vibration feedback in the direction perpendicular to the key area 10A so that it can be perceived by the user, thereby achieving tactile feedback and realizing human-computer interaction. It should be noted that the actuator can be a piezoelectric ceramic actuator, a motor or a piezoelectric ceramic actuator, etc., which can be selected according to needs.
[0053] Optionally, the housing 10 is a hollow cylindrical structure, and the side walls of the bracket 20, except the surface opposite to the key area 10A, are in contact with the inner wall surface of the housing 10. This increases the contact area between the bracket 20 and the housing 10, and further improves the stability of the bracket 20 installed in the housing 10.
[0054] The above is an explanation of the specific structural example of the virtual key structure 100 of the embodiment of the present application. It can be understood that since the electronic device of the present application adopts all the technical solutions of all the above embodiments, it at least has all the beneficial effects brought by the technical solutions of the above embodiments, which will not be repeated here one by one.
[0055] The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of this application, it should be understood that if the terms "upper", "lower", "left", "right", etc. indicate an orientation or position relationship based on the orientation or position relationship shown in the drawings, it is only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms describing the position relationship in the drawings are only used for illustrative purposes and cannot be understood as a limitation on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.
[0056] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.
Claims
1. A virtual key structure, characterized in that: include: A housing, wherein a mounting cavity is provided in the housing, and a key area is provided on an outer wall of the housing; A bracket, the bracket is fixed in the installation cavity and arranged opposite to the key area; A pressure sensing module, the pressure sensing module is fixedly arranged on a side of the bracket facing the key area; as well as A pressing component, two opposite sides of which are in contact with a surface of the pressure sensing module facing away from the bracket and an upper wall of the housing in the key area; When external force acts on the button area of the shell, the pressing component presses the pressure sensing module under the action of the inner wall of the shell in the button area, and the pressure sensing module is used to detect the pressure signal of the pressing component pressing the pressure sensing module.
2. The virtual key structure according to claim 1, characterized in that: The pressure component includes a first abutment member and a second abutment member which are stacked together, wherein the first abutment member is arranged opposite to the inner wall of the shell in the button area, the second abutment member is connected to the bracket, the surface of the second abutment member facing away from the first abutment member abuts against the surface of the pressure sensing module facing away from the bracket, and the first abutment member and the second abutment member are partially spaced apart from each other relative to the wall surface.
3. The virtual key structure according to claim 2, characterized in that: The second abutment member includes an abutment body and two elastic arms, the two elastic arms are respectively bent and connected to the opposite ends of the abutment body, the two elastic arms are both abutted and fixed with the first abutment member, the surface of the abutment body facing away from the first abutment member abuts with the pressure sensing module, and the abutment body and the surface of the first abutment member facing the abutment body are spaced apart.
4. The virtual key structure according to claim 2, characterized in that: The second abutment member has a first connection hole, the pressure sensing module has a second connection hole corresponding to the first connection hole, and the bracket has a third connection hole corresponding to the first connection hole; The virtual key structure also includes a fastener, which passes through the first connecting hole, the second connecting hole and the third connecting hole in sequence to fix the second abutment member and the pressure sensing module to the bracket.
5. The virtual key structure according to claim 2, characterized in that: The pressure sensing module is bonded and fixed to the second abutting member and the bracket.
6. The virtual key structure according to claim 1, characterized in that: The virtual key structure also includes a capacitor layer, which is arranged between the pressure component and the inner wall surface of the shell and is arranged opposite to the key area. The capacitor layer is electrically connected to the pressure sensor module.
7. The virtual key structure according to claim 1, characterized in that: The pressure sensing module includes a plurality of pressure sensors, the plurality of pressure sensors are arranged at intervals on the bracket, and the pressing component covers and fits the plurality of pressure sensors.
8. The virtual key structure according to claim 7, characterized in that: The pressure sensor is one of a resistive pressure sensor, a capacitive pressure sensor and a piezoelectric pressure sensor.
9. The virtual key structure according to any one of claims 1 to 8, characterized in that: The virtual key structure further includes an actuator, which is disposed on the bracket and electrically connected to the pressure sensing module, and when the pressure value exceeds a preset pressure threshold, the actuator generates vibration feedback in the normal direction of the key area; And / or, the shell is a hollow cylindrical structure, and the side wall surfaces of the bracket except the surface opposite to the key area are all in contact with the inner wall surface of the shell.
10. An electronic device, characterized in that: Comprising a virtual key structure as described in any one of claims 1 to 9.