Button structure, vibration recognition method therefor, and electronic device

Abstract

The present application provides a button structure, a vibration recognition method therefor, and an electronic device. The button structure comprises a button body configured to be connected to a mounting main body; and a functional assembly comprising a piezoelectric ceramic, a driving member and a sensor assembly. The driving member is provided with a middle component and edge components located on two sides of the middle component; the middle component of the driving member is configured to be fixedly connected to the mounting main body, and the piezoelectric ceramic is arranged on the middle component of the driving member; the edge components of the driving member are freely arranged; the piezoelectric ceramic and the sensor assembly are both arranged on the driving member, and the piezoelectric ceramic is electrically connected to the sensor assembly.

Description

Key structure, vibration identification method thereof and electronic device

[0001] The present application claims priority to the Chinese patent application No. 202410687386.1, filed on May 30, 2024, and entitled "Key structure, vibration identification method thereof and electronic device", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present application relates to the technical field of electronic products, and more particularly, the present application relates to a key structure, a vibration identification method thereof and an electronic device. BACKGROUND

[0003] With the development of technology and the improvement of living standards, people have higher and higher requirements for the experience of electronic products. Traditional mobile phone vibration relies on a motor to provide vibration, and only the whole machine can be vibrated, and the vibration feeling is single. Currently, some products on the market consider using piezoelectric ceramics to provide vibration feedback, but piezoelectric ceramics are fragile and easy to be damaged during falling. Falling test is a big problem.

[0004] Therefore, there is a need to provide a new technical solution to solve the above technical problems. SUMMARY

[0005] The present application aims to provide a new technical solution of a key structure, a vibration identification method thereof and an electronic device.

[0006] In a first aspect, the present application provides a key structure. The key structure comprises:

[0007] a key body, configured to be connected with a mounting body;

[0008] a functional component, comprising a piezoelectric ceramic, a driving piece and a sensor component;

[0009] the driving piece has a middle part and edge parts located on both sides of the middle part, the middle part of the driving piece is fixedly connected with the mounting body, and the piezoelectric ceramic is arranged in the middle part of the driving piece, and the edge parts of the driving piece are freely arranged;

[0010] the piezoelectric ceramic and the sensor component are arranged in the driving piece, and the piezoelectric ceramic is electrically connected with the sensor component.

[0011] Optionally, the sensor component comprises a first sensor and a second sensor, the first sensor is arranged in one of the edge parts, and the second sensor is arranged in the other edge part.

[0012] Optionally, the functional assembly further comprises an adhesive part fixedly connected with the mounting body, and the adhesive part is arranged opposite to the piezoelectric ceramic.

[0013] Optionally, at least a part of a projection of the piezoelectric ceramic in a first direction overlaps a projection of the adhesive part in the first direction.

[0014] Optionally, the functional assembly further comprises a first buffer part and a second buffer part, the first buffer part is located at one of the edge parts of the driving member, and the second buffer part is located at the other of the edge parts of the driving member.

[0015] Optionally, the first buffer part and the second buffer part are arranged opposite to the piezoelectric ceramic.

[0016] Optionally, the piezoelectric ceramic, the first sensor and the second sensor are located on the same surface of the driving member.

[0017] Optionally, the key body comprises a force receiving member, a first force transmitting member and a second force transmitting member, the first force transmitting member is connected with a first end of the force receiving member, and the second force transmitting member is connected with a second end of the force receiving member.

[0018] The first force transmitting member is provided with a first accommodating groove, the second force transmitting member is provided with a second accommodating groove, the driving member is arranged in the key body through the first accommodating groove and the second accommodating groove, the first buffer part is at least partially located in the first accommodating groove, and the second buffer part is at least partially located in the second accommodating groove.

[0019] Optionally, the first buffer part is in contact with a lower surface of the first accommodating groove, and the second buffer part is in contact with a lower surface of the second accommodating groove.

[0020] In a second aspect, an embodiment of the present application provides a vibration recognition method of a key structure. The key structure is the key structure as described in the first aspect, the sensor assembly comprises a first sensor and a second sensor, and the method comprises the following steps.

[0021] Receiving a first pressure value and a second pressure value, wherein the first pressure value is an output value of the first sensor, and the second pressure value is an output value of the second sensor.

[0022] Determining a difference value of the first pressure value and the second pressure value.

[0023] Recognizing vibration of the key structure according to the difference value.

[0024] In a third aspect, the embodiments of the present application provide an electronic device. The electronic device comprises the key structure and the mounting body, the mounting body is provided with a receiving space, and the key structure is at least partially arranged in the receiving space.

[0025] According to the embodiments of the present application, the key structure comprises the functional assembly, the middle part of the driving member of the functional assembly is fixed, and the piezoelectric ceramic is arranged in the middle part. In the drop test, the piezoelectric ceramic is prevented from being damaged.

[0026] Other features and advantages of the present application will be apparent from the following detailed description of exemplary embodiments of the present application, taken in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF DRAWINGS

[0027] The accompanying drawings incorporated in and forming a part of the specification illustrate embodiments of the present application and, together with the description, serve to explain the principles of the present application.

[0028] FIG. 1 is a structural diagram of a key structure according to an embodiment of the present application (a mounting body is shown).

[0029] FIG. 2 is an exploded view of the key structure according to an embodiment of the present application (a mounting body is shown).

[0030] Reference signs: 1, key body; 10, force receiving member; 11, first force transmission member; 12, second force transmission member; 111, first receiving groove; 121, second receiving groove; 2, functional assembly; 21, piezoelectric ceramic; 22, driving member; 23, sensor assembly; 231, first sensor; 232, second sensor; 24, adhesive part; 25, first buffer part; 26, second buffer part; A, vibration transmission surface. DETAILED DESCRIPTION

[0031] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangement, numerical expressions, and values of the components and steps set forth in these embodiments are not limiting to the scope of the present application unless otherwise specifically stated.

[0032] The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way limiting to the scope of the present application or its applications or uses.

[0033] Techniques and devices known to those of ordinary skill in the relevant art can not be discussed in detail herein, but should be considered as part of the description if appropriate.

[0034] In all the examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values.

[0035] It should be noted that similar labels and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be discussed further in subsequent figures.

[0036] This application provides a button structure. This button structure can be widely used in various electronic devices that require tactile feedback, such as mobile phones, tablets, and game consoles.

[0037] Referring to Figures 1 and 2, the button structure includes: a button body 1 for connection with the mounting body; and a functional component 2, including a piezoelectric ceramic 21, a driving component 22, and a sensor assembly 23. The driving component 22 has a middle part and edge parts located on both sides of the middle part. The middle part of the driving component 22 is fixedly connected to the mounting body, and the piezoelectric ceramic 21 is disposed in the middle part of the driving component 22. The edge parts of the driving component 22 are freely disposed. Both the piezoelectric ceramic 21 and the sensor are disposed in the driving component 22, and the piezoelectric ceramic 21 is electrically connected to the sensor assembly 23.

[0038] This application discloses a button structure for mounting to a mounting body, which can be a part of an electronic device. By operating the button structure, corresponding control of the electronic device can be achieved. For example, the mounting body can be the frame of an electronic device (e.g., the mid-frame of a mobile phone). To accommodate the button structure, the mounting body may have mounting holes or grooves to provide space for it.

[0039] The button structure includes a button body 1, which serves as the basic mounting component and provides a mounting base for the functional component 2. The button body 1 connects to the mounting body, allowing the entire button structure to be installed and preventing it from shifting. Once installed, the user operates the button body 1 by pressing, sliding, or using other methods to perform the corresponding functions of the electronic device.

[0040] In this embodiment, referring to Figures 1 and 2, the functional component 2 integrates a piezoelectric ceramic 21, a driving element 22, and a sensor assembly 23 to realize the button's function and feedback. This design makes the button structure more compact and also facilitates the connection and signal transmission between electronic components. In addition, the sensor assembly 23 and the piezoelectric ceramic 21 are both fixed on the same driving element 22, reducing the number of assembly steps for the button structure, simplifying the process, and making assembly more convenient.

[0041] The driving member 22 is used to be connected with the mounting body, and specifically, the driving member 22 has a middle part and edge parts located on both sides of the middle part, for example, the driving member 22 is a metal sheet, and along the length direction of the metal sheet, the middle part is located in the middle region of the metal sheet, and the edge parts are located in the edge regions of the metal sheet.

[0042] Specifically, the middle part of the driving member 22 is used to be fixedly connected with the mounting body, and the edge parts of the driving member 22 are freely arranged, which means that the two edge parts of the driving member 22 are not directly fixed, but can move or vibrate within a certain range. In this example, the vibration region and the fixed region of the driving member 22 are adjusted, and the driving member 22 is in a structure of “middle fixed and edge freely arranged”, so that in the whole vibration process of the key structure, the middle part of the driving member 22 is fixed, and the edge region of the driving member 22 vibrates to drive the key body 1 to vibrate.

[0043] It should be emphasized that the position of the piezoelectric ceramic 21 is limited in the embodiments of the present application, and the piezoelectric ceramic 21 is arranged in the middle part of the driving member 22. Since the middle part of the driving member 22 is fixed, the piezoelectric ceramic 21 will not move and thus will not be damaged or fail in the drop test and the like.

[0044] In addition, since the driving member 22 is in a structure of “middle fixed and edge freely arranged”, when the piezoelectric ceramic 21 receives the output signal of the sensor assembly 23, the piezoelectric ceramic 21 deforms to drive the edge part of the driving member 22 to vibrate, thereby driving the key body 1 to vibrate, and the user feels the vibration through the key body 1. Compared with the scheme of “middle freely arranged and edge fixed”, the key structure provided in the embodiments has the effects of larger vibration amplitude, stronger vibration feeling, and more uniform vibration feeling of the whole key.

[0045] The sensor assembly 23 is used to detect the force or displacement of the key body 1 and convert the information into an electrical signal to be transmitted to the piezoelectric ceramic 21. The piezoelectric ceramic 21 generates corresponding vibration according to the received signal as feedback of the key operation. This cooperative work enables the key structure to accurately respond to the user's operation and provide instant and accurate feedback.

[0046] In order to enable the sensor to transmit the detected signal to the piezoelectric ceramic 21, the sensor assembly 23 needs to be electrically connected with the piezoelectric ceramic 21. For example, the sensor and the piezoelectric ceramic 21 can be directly or indirectly electrically connected, and the specific form can be selected according to the actual working condition. In a specific embodiment, the key structure is applied to an electronic device, the electronic device includes a mainboard, the sensor assembly 23 transmits the signal to be fed back to the mainboard, the mainboard transmits an instruction after receiving the signal, and the piezoelectric ceramic 21 receives the instruction to respond.

[0047] Therefore, in this embodiment, a button structure is provided, which includes a functional component 2. The middle part of the driving component 22 of the functional component 2 is fixed and the piezoelectric ceramic 21 is disposed in the middle part, so as to avoid the piezoelectric ceramic 21 from breaking during drop tests, etc. In addition, the driving component 22 has a "fixed middle and freely set edge" structure, which can improve the button vibration. Furthermore, the button structure transmits pressure signals through the sensor component 23, and the button structure can accurately respond to the user's operation and provide instant and accurate feedback.

[0048] In one embodiment, referring to Figures 1 and 2, the sensor assembly 23 includes a first sensor 231 and a second sensor 232, wherein the first sensor 231 is located on one of the edge components and the second sensor 232 is located on the other edge component.

[0049] In this embodiment, since the two sensors are located on the two side edge components of the drive member 22, the first sensor 231 and the second sensor 232 can more accurately detect the force or displacement of the key body 1 at different positions. At the same time, the two sensors can also respond to the movement of the key body 1 more quickly. No matter which direction the user presses the key body 1, it can be quickly detected by the corresponding sensor and rapidly transmitted to the piezoelectric ceramic 21 for processing.

[0050] Furthermore, since the two sensors are located on opposite sides of the drive element 22, they can detect the deformation of the key body 1 at different positions. This allows the piezoelectric ceramic 21 to generate more accurate and appropriate vibration feedback based on the received signals, improving the user experience.

[0051] Specifically, when a user presses the key body 1, the deformation of the key body 1 acts simultaneously on the two edge components of the drive component 22. A first sensor 231 located on one of the edge components detects the force or displacement acting on the key body 1 at that position and converts the relevant information into an electrical signal. Simultaneously, a second sensor 232 located on the other edge component also detects the force or displacement acting on the key body 1 at that position and converts the relevant information into an electrical signal. The piezoelectric ceramic 21 generates corresponding vibrations based on the intensity and characteristics of the received signals. These vibrations are transmitted to the key body 1 through the drive component 22 as feedback for the key press operation.

[0052] In one embodiment, referring to Figures 1 and 2, the functional component 2 further includes an adhesive portion 24 for fixed connection with the mounting body, the adhesive portion 24 and the piezoelectric ceramic 21 being disposed opposite to each other.

[0053] In this embodiment, the drive component 22 has a middle component and edge components located on both sides thereon. The middle component is fixedly connected to the mounting body via an adhesive portion 24. Since the piezoelectric ceramic 21 is also located in the middle component of the drive component 22, the adhesive portion 24 is positioned opposite to the piezoelectric ceramic 21. This ensures that the functional component 2 is fixedly connected to the mounting body, and also ensures that the piezoelectric ceramic 21 can receive sensor signals and operate normally.

[0054] In one embodiment, referring to Figures 1 and 2, at least a portion of the projection of the piezoelectric ceramic 21 in a first direction overlaps with the projection of the adhesive portion 24 in the first direction, wherein the first direction is the vibration direction of the drive member 22.

[0055] In this embodiment, since at least a portion of the projection of the piezoelectric ceramic 21 in the first direction (i.e., the vibration direction of the drive member 22) overlaps with the adhesive portion 24, this arrangement helps to ensure that vibration energy is transmitted more concentratedly and efficiently. The vibration generated by the piezoelectric ceramic 21 can act more directly on the drive member 22, reducing energy loss and thus improving vibration efficiency.

[0056] Furthermore, in the vibration direction, the overlapping projections of the piezoelectric ceramic 21 and the adhesive portion 24 not only facilitate energy transfer but also enhance the stability of the entire button structure. This layout allows the piezoelectric ceramic 21 to be effectively supported by the adhesive portion 24 when it vibrates, reducing wobbling or displacement caused by vibration. This design provides users with clearer and more accurate button operation feedback.

[0057] In one embodiment, referring to Figures 1 and 2, the functional component 2 further includes a first buffer portion 25 and a second buffer portion 26. The first buffer portion 25 is located at one of the edge components of the drive member 22, for example, the first buffer portion 25 is located at a first end of the drive member 22, and the second buffer portion is located at the other edge component of the drive member 22, for example, the second buffer portion 26 is located at a second end of the drive member 22.

[0058] In this embodiment, functional component 2 further includes two buffer sections, both located on the edge components of the drive member 22. Specifically, the first buffer section 25 is located on the left edge component of the drive member 22, and the second buffer section 26 is located on the right edge component of the drive member 22.

[0059] When the key body 1 is pressed, the two buffer components first come into contact with this pressure, which plays a preliminary buffering role. This helps to reduce the impact force directly acting on the drive component 22 and the piezoelectric ceramic 21, thereby improving the life and stability of the drive component 22 and the piezoelectric ceramic 21.

[0060] Furthermore, the first end and the second end of the driving member 22 are in contact with (not connected to) the key body 1 by providing a first buffer on the first end of the driving member 22 and a second buffer on the second end of the driving member 22. During the vibration process, the first end and the second end of the driving member 22 are in zero contact with the vibration transmission surface A of the key body 1, ensuring effective transmission of vibration.

[0061] In one embodiment, referring to FIG. 1 and FIG. 2, the first buffer 25 and the second buffer 26 are both arranged opposite to the piezoelectric ceramic 21.

[0062] In this embodiment, the first buffer 25 is located at one edge part of the driving member 22 and is opposite to the piezoelectric ceramic 21 in position (in the first direction). The second buffer 26 is located at another edge part of the driving member 22 and is also opposite to the piezoelectric ceramic 21 in position (in the first direction) and opposite to the first buffer 25. Specifically, the two buffers are opposite in the second direction, where the second direction is perpendicular to the first direction, and the second direction is the length direction of the driving member 22.

[0063] Since the buffers are arranged opposite to the piezoelectric ceramic 21, this layout can reduce the interference of the buffers on the piezoelectric ceramic 21 when pressed. As a key component for generating vibration feedback, the piezoelectric ceramic 21 needs to maintain its accuracy and stability in operation. This design of the buffers can ensure that they play a buffering role while not adversely affecting the piezoelectric ceramic 21.

[0064] In one embodiment, referring to FIG. 1 and FIG. 2, the piezoelectric ceramic 21, the first sensor 231 and the second sensor 232 are located on the same surface of the driving member 22.

[0065] In this embodiment, placing the piezoelectric ceramic 21, the first sensor 231 and the second sensor 232 on the same surface of the driving member 22 can greatly simplify the complexity of the key structure. This layout reduces the need for connection and wiring between components, thereby reducing manufacturing difficulty and cost. For example, the first sensor 231 and the second sensor 232 are located on both sides of the piezoelectric ceramic 21.

[0066] Since the piezoelectric ceramic 21 and the sensors are close in physical distance and are on the same surface, this layout can improve the signal transmission efficiency and stability between them, reducing the problem of signal attenuation or distortion that may be caused by long-distance transmission or complex connection. In addition, this arrangement makes the interaction between the piezoelectric ceramic 21 and the sensors more direct and efficient. When the sensors detect the force condition of the key body 1, they can quickly transmit the signal to the piezoelectric ceramic 21, thereby producing more timely and accurate vibration feedback.

[0067] In one embodiment, referring to FIG. 2, the key body 1 comprises a force receiving member 10, a first force transmitting member 11 connected to a first end of the force receiving member 10, and a second force transmitting member 12 connected to a second end of the force receiving member 10;

[0068] The first force transmitting member 11 is provided with a first accommodating groove 111, and the second force transmitting member 12 is provided with a second accommodating groove 121. The driving member 22 is arranged in the key body 1 through the first accommodating groove 111 and the second accommodating groove 121. The first buffer part 25 is at least partially located in the first accommodating groove 111, and the second buffer part 26 is at least partially located in the second accommodating groove 121.

[0069] In this embodiment, the key body 1 mainly comprises three parts: the force receiving member 10, the first force transmitting member 11, and the second force transmitting member 12. The force receiving member 10 is the part directly subjected to the force applied by the user, usually located at the top of the key body 1. The first force transmitting member 11 is connected to the first end of the force receiving member 10, and the second force transmitting member 12 is connected to the second end of the force receiving member 10. The first force transmitting member 11 and the second force transmitting member 12 are responsible for transmitting the force to the functional assembly 2, so that the first sensor 231 and the second sensor 232 can detect the force acting on the key body 1 and output signals to the piezoelectric ceramic 21.

[0070] In order to accommodate the functional assembly 2, the first force transmitting member 11 and the second force transmitting member 12 are respectively provided with the first accommodating groove 111 and the second accommodating groove 121. These accommodating grooves provide sufficient space for the driving member 22 and ensure that the driving member 22 can be stably installed in the key body 1. The driving member 22 is arranged in the key body 1 through these accommodating grooves. The middle part of the driving member 22 is fixedly connected to the installation body, and the piezoelectric ceramic 21 is located on the middle part.

[0071] In order to further enhance stability and provide optimized tactile feedback, the first buffer part 25 is at least partially located in the first accommodating groove 111, and the second buffer part 26 is at least partially located in the second accommodating groove 121. These buffer parts can effectively reduce noise and wear that may be generated during vibration, and at the same time provide more comfortable and natural tactile feedback for the user. In addition, by arranging the first buffer part 25 and the second buffer part 26, the first end of the driving member 22 is in zero contact with the vibration transmission surface A of the first force transmitting member 11, and the second end of the driving member 22 is in zero contact with the vibration transmission surface A of the second force transmitting member 12, ensuring effective transmission of vibration.

[0072] In one embodiment, referring to FIG. 2, the first buffer part 25 is in contact with the lower surface of the first accommodating groove 111, and the second buffer part 26 is in contact with the lower surface of the second accommodating groove 121.

[0073] In this embodiment, the first buffer part 25 is in contact with the lower surface of the first accommodating groove 111, and the upper surface of the first accommodating groove 111 is the vibration transmission surface A. The second buffer part 26 is in contact with the lower surface of the second accommodating groove 121, and the upper surface of the second accommodating groove 121 is the vibration transmission surface A. When the functional component 2 generates vibration, the vibration will be effectively transmitted to the force receiving member 10 of the key body 1 through the upper surfaces of the accommodating grooves, thereby providing the user with tactile feedback.

[0074] In this embodiment, through the design of the explicit vibration transmission surface A, the vibration can be more directly and efficiently transmitted to the force receiving member 10, thereby providing the user with clearer and more realistic tactile feedback.

[0075] The application also provides a key structure vibration identification method. The key structure is as described above, the sensor assembly 23 includes a first sensor 231 and a second sensor 232, and the identification method includes the following steps:

[0076] S101: receiving a first pressure value and a second pressure value, wherein the first pressure value is the output value of the first sensor 231, and the second pressure value is the output value of the second sensor 232;

[0077] S102: determining the difference between the first pressure value and the second pressure value;

[0078] S103: identifying the vibration of the key structure according to the difference.

[0079] The application provides a key structure vibration identification method, which identifies the vibration of the key structure by detecting the output values of two sensors (the first sensor 231 and the second sensor 232). The following is a detailed explanation of the identification method:

[0080] In step S101, the system (e.g., the mainboard) first receives the output values from the two sensors, i.e., the output value of the first sensor 231 (the first pressure value) and the output value of the second sensor 232 (the second pressure value). These two sensors should be located at different positions of the key structure to detect the pressure changes when the key is pressed or released.

[0081] In step S102, after receiving the two pressure values, the system (e.g., the mainboard) calculates the difference between the two values. This difference reflects the difference in pressure changes at different positions of the key structure, which is caused by the vibration or distortion of the key. Specifically, the system (e.g., the mainboard) calculates the relative pressure difference V = V1-V2 of the two sensors, V1 is the pressure value output by the first sensor 231, and V2 is the pressure value output by the second sensor 232.

[0082] At step S103: According to the calculated difference, the system (e.g. the mainboard) can identify the vibration situation of the key structure. Specifically, the vibration situation of the key structure is identified according to the relative difference V.

[0083] For example, in a specific embodiment, the key structure is installed in the middle frame of an electronic device, the key structure is a side key, the first sensor 231 is located above, and the second sensor 232 is located below.

[0084] When the relative pressure difference V is continuously detected to decrease, in one case, the pressure value output by the first sensor 231 becomes smaller, and the pressure value output by the second sensor 232 becomes larger, it is determined that the user is sliding from top to bottom. In another case, the pressure value output by the first sensor 231 does not change, and the pressure value output by the second sensor 232 becomes larger, it is determined that the user is pressing the lower part of the key structure. When the relative pressure value V is continuously detected to decrease, the corresponding application scenario can be that the volume of the electronic device is increased or the screen brightness is increased, and the corresponding vibration situation can be that the vibration feedback is gradually increased.

[0085] When the relative pressure difference V is continuously detected to increase, in one case, the pressure value output by the first sensor 231 becomes larger, and the pressure value output by the second sensor 232 becomes smaller, it is determined that the user is sliding from bottom to top. In another case, the pressure value output by the second sensor 232 becomes larger, and the pressure value output by the first sensor 231 does not change, it is determined that the user is pressing the upper part of the key structure. When the relative pressure value is detected to decrease, the corresponding application scenario can be that the volume is reduced or the screen brightness is reduced, and the corresponding vibration situation can be that the vibration feedback is gradually reduced.

[0086] The above defines that when the user slides or presses the key structure, the key structure can provide different vibration feedback. Among them, pressing can include short pressing or long pressing (short pressing or long pressing is identified by pressing time), short pressing and long pressing also correspond to different vibration feedback, for example, short pressing is a vibration frequency or vibration amplitude; long pressing is another vibration frequency or vibration frequency, and the vibration frequency and vibration amplitude can be customized or personalized setting to realize user personalized definition.

[0087] Therefore, in this embodiment, the key structure is applied in smart phones and other electronic devices, and this identification method can be used to improve the touch and feedback of the key. The key structure is applied in game controllers and remote controllers, and the vibration feedback is crucial for user experience. This method can help these devices more accurately identify user input and provide more realistic vibration feedback.

[0088] The application further provides an electronic device comprising the key structure and the mounting body, the mounting body is provided with a containing space, and the key structure is at least partially arranged in the containing space. The electronic device can be a mobile phone, a computer, a game machine or the like.

[0089] The above embodiments mainly describe the differences between the embodiments, and the different optimization features between the embodiments can be combined to form a better embodiment without contradiction. For the sake of brevity, the description will not be repeated here.

[0090] Although some specific embodiments of the application have been described in detail by examples, those skilled in the art should understand that the above examples are only for illustration, not for limiting the scope of the application. Those skilled in the art should understand that the above embodiments can be modified without departing from the scope and spirit of the application. The scope of the application is defined by the appended claims.

Claims

1. A button structure, characterized in that, include: Key body (1), used for connection with the mounting body; Functional component (2) includes piezoelectric ceramic (21), actuator (22) and sensor assembly (23); The driving member (22) has a middle part and edge parts located on both sides of the middle part. The middle part of the driving member (22) is used to be fixedly connected to the mounting body and the piezoelectric ceramic (21) is disposed in the middle part of the driving member (22). The edge parts of the driving member (22) are freely disposed. The piezoelectric ceramic (21) and the sensor assembly (23) are both disposed on the drive member (22), and the piezoelectric ceramic (21) is electrically connected to the sensor assembly (23).

2. The button structure according to claim 1, characterized in that, The sensor assembly (23) includes a first sensor (231) and a second sensor (232), the first sensor (231) being located on one of the edge components and the second sensor (232) being located on the other edge component.

3. The button structure according to claim 1 or 2, characterized in that, The functional component (2) further includes an adhesive part (24) for fixed connection with the mounting body, the adhesive part (24) and the piezoelectric ceramic (21) being disposed opposite to each other.

4. The button structure according to claim 3, characterized in that, At least a portion of the projection of the piezoelectric ceramic (21) in a first direction overlaps with the projection of the adhesive portion (24) in the first direction, which is the vibration direction of the drive member (22).

5. The button structure according to any one of claims 1-4, characterized in that, The functional component (2) further includes a first buffer (25) and a second buffer (26), the first buffer (25) being located on one of the edge components of the drive member (22) and the second buffer (26) being located on the other edge component of the drive member (22).

6. The button structure according to claim 5, characterized in that, The first buffer section (25) and the second buffer section (26) are both disposed opposite to the piezoelectric ceramic (21).

7. The button structure according to any one of claims 1-6, characterized in that, The piezoelectric ceramic (21) and the sensor assembly (23) are located on the same surface of the drive element (22).

8. The button structure according to claim 5, characterized in that, The key body (1) includes a force-receiving component (10), a first force-transmitting component (11), and a second force-transmitting component (12). The first force-transmitting component (11) is connected to the first end of the force-receiving component (10), and the second force-transmitting component (12) is connected to the second end of the force-receiving component (10). The first force transmission member (11) has a first receiving groove (111), the second force transmission member (12) has a second receiving groove (121), the driving member (22) is disposed on the key body (1) through the first receiving groove (111) and the second receiving groove (121), the first buffer part (25) is at least partially located in the first receiving groove (111), and the second buffer part (26) is at least partially located in the second receiving groove (121).

9. The button structure according to claim 8, characterized in that, The first buffer part (25) is in contact with the lower surface of the first receiving groove (111), and the second buffer part (26) is in contact with the lower surface of the second receiving groove (121).

10. A method for identifying vibration in a button structure, characterized in that, The button structure is the button structure as described in any one of claims 1-9, the sensor assembly (23) includes a first sensor (231) and a second sensor (232), and the method includes the following steps: Receive a first pressure value and a second pressure value, wherein the first pressure value is the output value of the first sensor (231) and the second pressure value is the output value of the second sensor (232); Determine the difference between the first pressure value and the second pressure value; The vibration of the button structure is identified based on the difference.

11. An electronic device, characterized in that, The electronic device includes a button structure and a mounting body as described in any one of claims 1-9, wherein the mounting body has an accommodating space, and the button structure is at least partially disposed within the accommodating space.

Images