Pressing assembly, key device and vehicle

Abstract

The invention discloses a pressing assembly, a key device and a vehicle. The pressing assembly comprises a first induction piece and a strain gauge, a deformation part is formed on the first induction piece, and the deformation part is suitable for deforming in the thickness direction after being pressed; the strain gauge is arranged on at least part of the surface of the deformation part, and the strain gauge is suitable for detecting the deformation quantity of the deformation part and generating a corresponding first induction signal according to the deformation quantity. According to the pressing assembly, the first induction piece and the strain gauge are arranged, the deformation part on the first induction piece deforms in the thickness direction during pressing to provide a real stroke for the pressing action, and the strain gauge detects the deformation quantity of the deformation part in real time and generates the first induction signal so that the pressing assembly can conveniently judge whether the pressing process is completed or not; mistaken touch is avoided, and the user experience is improved.

Description

Technical Field

[0001] The present invention relates to the field of vehicles, and in particular to a pressing component, a key device and a vehicle. Background Art

[0002] With the development of smart cockpits, smart surface technology has also been gradually applied to car interiors. Smart surface touch buttons generally use capacitive sensing, which forms a coupling capacitor with the human body through a capacitive sensing coil. By monitoring the change in capacitance, it outputs high and low levels to achieve the switch function. However, the smart surface touch buttons in the existing technology have a poor feel, no real touch and pressing travel, and are prone to accidental touches, which affects the use of the buttons and may even affect the safety of the vehicle. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one object of the present invention is to provide a pressing assembly. According to the pressing assembly of the present invention, a first sensing member and a strain gauge are provided. When pressed, the deformation part on the first sensing member is deformed in the thickness direction to provide a real stroke for the pressing action. The strain gauge detects the deformation amount of the deformation part in real time and generates a first sensing signal so that the pressing assembly can judge whether the pressing process is completed, thereby avoiding false touches and improving the user experience.

[0004] The present invention also provides a key device comprising the pressing assembly.

[0005] The present invention also provides a vehicle comprising the key device.

[0006] According to the present invention, the pressing assembly includes a first sensing member and a strain gauge, wherein the first sensing member is formed with a deformation portion, and the deformation portion is suitable for deforming along the thickness direction after being compressed; the strain gauge is arranged on at least a portion of the surface of the deformation portion, and the strain gauge is suitable for detecting the deformation amount of the deformation portion and generating a corresponding first sensing signal according to the deformation amount.

[0007] According to the present invention, the pressing component is provided with a first sensing member, which can sense the pressing action and give feedback. Specifically, a deformation part is formed on the first sensing member. When pressing, the pressure generated by the pressing action can act on the deformation part. At this time, the deformation part is subjected to pressure and deforms along the thickness direction. The deformation of the deformation part in the thickness direction can make the pressing action have a real pressing stroke, which can improve the pressing experience. At the same time, the pressing component is also provided with a strain gauge on at least part of the surface of the deformation part. The strain gauge can detect the deformation amount of the deformation part when the deformation part is deformed and generate a corresponding first sensing signal according to the detected deformation amount. When the deformation amount of the deformation part detected by the strain gauge reaches a preset value, the first sensing signal generated by the strain gauge can be understood as the completion of the pressing action. At this time, the pressing component can control the switch or the structure to be controlled connected to the pressing component to start, thereby achieving the purpose of pressing. The pressing device cooperates with the deformation part and the strain gauge to make the pressing action have a real pressing touch and pressing stroke, thereby improving the pressing experience. At the same time, the deformation amount detected by the strain gauge needs to reach the preset value before the pressing action is determined to be completed, which can avoid the pressing component from being accidentally touched and improve the safety of the pressing component. It is worth noting that the preset value here can be limited according to the actual structure of the pressing component assembly.

[0008] According to an embodiment of the present invention, at least part of the deformation portion is disposed around to deform in the axial direction after being compressed and / or at least part of the deformation portion protrudes in the thickness direction to deform after being compressed.

[0009] According to one embodiment of the present invention, the first sensing member includes a plate portion, the plate portion is formed with a mounting hole suitable for accommodating the deformation portion, and the mounting hole extends in the thickness direction of the deformation portion to avoid deformation of the deformation portion; wherein at least a portion of the deformation portion is accommodated in the mounting hole and connected to the inner wall of the mounting hole.

[0010] According to one embodiment of the present invention, the deformation portion includes a load-bearing portion and an annular rib, one end of the annular rib is connected to the outer edge of the load-bearing portion, the annular rib is arranged around at least part of the outer circumference of the load-bearing portion, and the strain gauge is arranged on the circumferential surface of the annular rib.

[0011] According to one embodiment of the present invention, the annular rib is constructed as at least one layer that is spirally arranged, and the spiral lift of the annular rib is d and d≥0 mm.

[0012] According to one embodiment of the present invention, the strain gauge is constructed in plurality and the plurality of strain gauges are arranged at intervals on the radial inner surface or the radial outer surface of the annular rib.

[0013] The key device according to the present invention is briefly described below.

[0014] The key device according to the present invention comprises the pressing assembly, feedback component and control panel in the above-mentioned embodiment, wherein the feedback component is arranged on one side of the pressing assembly in the thickness direction and can generate sound, light and / or vibration; the control panel is respectively connected to the pressing assembly and the feedback component and is suitable for controlling the feedback component to work after the pressing assembly receives the first sensing signal. Since the key device according to the present invention comprises the pressing assembly in the above-mentioned embodiment, after the pressing assembly, the feedback component and the control panel are assembled to form the key device, when the external pressure is generated, the first sensing member is deformed, and the strain gauge detects the deformation amount of the deformation part on the first sensing member in real time. When the deformation amount of the deformation part reaches a preset value, the strain gauge generates a first sensing signal according to the detected deformation amount. The key device can determine that the pressing is successful according to the first sensing signal and can control the component connected to the key device to start or shut down. At this time, the control panel can control the feedback component to emit sound, light or vibration to prompt the pressing success. The arrangement of the feedback component and the control panel enables the key device to have a prompt function, so that the key device can timely feedback whether the pressing is successful after pressing, thereby improving the user experience of the key device.

[0015] According to one embodiment of the present invention, the button device has a second sensing element, which is arranged on one side of the first sensing element and is electrically connected to the control board. The second sensing element is suitable for generating a second sensing signal according to a change in electrical properties after contacting the target object, and the control board is suitable for controlling the feedback component according to the first sensing signal and / or the second sensing signal.

[0016] According to an embodiment of the present invention, the key device further comprises: a decoration layer, the decoration layer is arranged on the outer surface of the second sensing element and covers the second sensing element, and the decoration layer is formed with a mark facing the second sensing element.

[0017] According to one embodiment of the present invention, an avoidance hole is formed on the deformation portion, and the button device also includes a light-emitting lamp and a backlight diffusion film. The light-emitting lamp is arranged on one side in the thickness direction of the first sensing element and is suitable for emitting light toward the decorative layer through the avoidance hole; the backlight diffusion film is arranged between the light-emitting lamp and the decorative layer, and the backlight diffusion film is suitable for diffusing the light emitted by the light-emitting lamp to the decorative layer.

[0018] The vehicle according to the present invention will be briefly described below.

[0019] The vehicle according to the present invention includes the button device in the above embodiment. Since the vehicle according to the present invention includes the button device in the above embodiment, the button device can be connected to the functional components in the vehicle after being assembled with the vehicle. When pressed, the button device can detect the deformation and electrical property changes during the pressing process through the first sensing member and the second sensing member respectively. When the button device receives the first sensing signal and / or the second sensing signal, it can be determined that the pressing is successful. At this time, the pressing device can control the corresponding functional component to start or shut down. After the button device is connected to the vehicle, it can avoid accidental touching when pressing the functional components in the vehicle, and make the pressing process have a real stroke, which can improve the safety of the vehicle and the user experience.

[0020] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0022] Figure 1 is a structural diagram of a pressing assembly according to an embodiment of the present invention;

[0023] Figure 2 is a structural diagram of a key device according to an embodiment of the present invention;

[0024] Figure 3 is an assembly diagram of a feedback component and a backlight diffusion film according to an embodiment of the present invention;

[0025] Reference numerals:

[0026] Pressing component 1;

[0027] The first induction element 11, the deformation portion 111, the bearing portion 1111, the annular rib 1112, and the plate portion 112;

[0028] Strain gauge 12;

[0029] Button device 2;

[0030] Feedback component 21, control board 22, second sensor 23, decoration layer 24, logo 241;

[0031] Backlight diffusion film 251 and avoidance hole 252 . DETAILED DESCRIPTION

[0032] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0033] With the development of smart cockpits, smart surface technology has also been gradually applied to car interiors. Smart surface touch buttons generally use capacitive sensing, which forms a coupling capacitor with the human body through a capacitive sensing coil. By monitoring the change in capacitance, it outputs high and low levels to achieve the switch function. However, the smart surface touch buttons in the existing technology have a poor feel, no real touch and pressing travel, and are prone to accidental touches, which affects the use of the buttons and may even affect the safety of the vehicle.

[0034] Reference below Figure 1-Figure 3 A pressing assembly according to an embodiment of the present invention is described.

[0035] The pressing assembly 1 according to the present invention includes a first sensing member 11 and a strain gauge 12, wherein the first sensing member 11 is formed with a deformation portion 111, and the deformation portion 111 is suitable for deforming along the thickness direction after being compressed; the strain gauge 12 is arranged on at least a portion of the surface of the deformation portion 111, and the strain gauge 12 is suitable for detecting the deformation amount of the deformation portion 111 and generating a corresponding first sensing signal according to the deformation amount.

[0036] According to the present invention, the pressing component 1 is provided with a first sensing member 11, which can sense the pressing action and give feedback. Specifically, a deformation part 111 is formed on the first sensing member 11. When pressing, the pressure generated by the pressing action can act on the deformation part 111. At this time, the deformation part 111 is subjected to pressure and deforms along the thickness direction. The deformation of the deformation part 111 in the thickness direction can make the pressing action have a real pressing stroke, which can improve the pressing experience. At the same time, the pressing component 1 is also provided with a strain gauge 12 on at least part of the surface of the deformation part 111. The strain gauge 12 can detect the deformation amount of the deformation part 111 when the deformation part 111 is deformed and generate a corresponding first sensing signal according to the detected deformation amount. When the deformation amount of the deformation part 111 detected by the strain gauge 12 reaches a preset value, the first sensing signal generated by the strain gauge 12 can be understood as the completion of the pressing action. At this time, the pressing component 1 can control the switch or the structure to be controlled connected to the pressing component 1 to start, thereby achieving the purpose of pressing. The pressing device cooperates with the deformation part 111 and the strain gauge 12 to make the pressing action have a real pressing touch and pressing stroke, thereby improving the pressing experience. At the same time, the deformation amount detected by the strain gauge 12 needs to reach a preset value before the pressing action is determined to be completed, which can avoid the pressing component 1 from being accidentally touched, thereby improving the safety of the pressing component 1. It is worth noting that the preset value here can be limited according to the actual assembly structure of the pressing component 1.

[0037] According to one embodiment of the present invention, at least part of the deformation part 111 is arranged in a circumferential manner to deform in the axial direction after being pressed and / or at least part of the deformation part 111 protrudes in the thickness direction to deform after being pressed. Since the deformation part 111 is a structure for realizing the real stroke of the pressing action, the structure of the deformation part 111 will affect the real stroke of the pressing action. Specifically, the deformation part 111 can be provided with a structure for amplifying the deformation amount when being constructed. Amplifying the deformation amount can improve the sensitivity of the pressing component 1, and there is no need to apply excessive pressing force when pressing.

[0038] In actual processing, the method of amplifying the deformation amount can be to construct at least part of the deformation part 111 as a structure that is arranged in a surrounding manner so as to deform in the axial direction after being compressed, or to construct at least part of the deformation part 111 as a structure that protrudes in the thickness direction. Among them, the scheme that at least part of the deformation part 111 is arranged in a surrounding manner can be understood as a spiral structure similar to that on a plane. When compressed, the deformation part 111 arranged in a surrounding manner deforms under the action of pressure. At this time, the deformation amount of the deformation part 111 in the axial direction can be converted into the deformation amount in the circumferential direction, which can reduce the space required for the deformation part 111 to deform in the axial direction when it is compressed, and facilitate the assembly of the first sensing element 11. The deformation amount amplification here can be understood as that within the same axial space, the deformation part 111 arranged in a surrounding manner can be deformed in a larger range, and under the same material, the deformation part 111 arranged in a surrounding manner is easier to deform than a flat plate. The solution in which at least part of the deformation portion 111 is constructed to protrude in the thickness direction can be understood as a part of the deformation portion 111 protruding relative to another part. When pressed, the pressure acts on the protruding part of the deformation portion 111. After the deformation portion 111 itself is deformed by the force, both the protruding part and the non-protruding part will be deformed, and the deformation amount of the two combined is greater than the solution without a protruding structure under the same pressure, thereby improving the sensitivity of the pressing component 1.

[0039] According to one embodiment of the present invention, the first sensing member 11 includes a plate portion 112, and the plate portion 112 is formed with a mounting hole suitable for accommodating the deformation portion 111. The mounting hole extends in the thickness direction of the deformation portion 111 to avoid deformation of the deformation portion 111; wherein at least a portion of the deformation portion 111 is accommodated in the mounting hole and connected to the inner wall of the mounting hole. Specifically, the first sensing member 11 is also provided with a plate portion 112, and a mounting hole extending in the thickness direction is formed on the plate portion 112. During assembly, the deformation portion 111 can be accommodated in the mounting hole and connected to the inner wall of the mounting hole. The structure of the plate portion 112 can provide support for the deformation portion 111, so that the deformation portion 111 is deformed with the plate portion 112 as the base point, thereby improving the stability of the deformation portion 111 after assembly and preventing the deformation portion 111 from falling off under pressure. The arrangement of the mounting hole not only provides a mounting position for the deformation portion 111 , but also the extension of the mounting hole in the thickness direction can avoid the deformation of the deformation portion 111 , thereby ensuring that the compression deformation process of the deformation portion 111 is not interfered with.

[0040] According to an embodiment of the present invention, the deformation part 111 includes a bearing part 1111 and an annular rib 1112, one end of the annular rib 1112 is connected to the outer edge of the bearing part 1111, the annular rib 1112 is arranged around at least part of the outer periphery of the bearing part 1111, and the strain gauge 12 is arranged on the circumferential surface of the annular rib 1112. Specifically, the bearing part 1111 and the annular rib 1112 are arranged on the deformation part 111, wherein the bearing part 1111 can be understood as a structure that is moved or deformed by force when the pressing component 1 is pressed; and the annular rib 1112 can be understood as a structure driven when the bearing part 1111 moves or deforms. The annular rib 1112 is arranged around at least part of the outer periphery of the bearing part 1111, and one end of the annular rib 1112 is connected to the bearing part 1111. When the pressing assembly 1 is pressed, the bearing part 1111 moves in the thickness direction and drives the annular rib 1112 to deform. A strain gauge 12 can be arranged on the annular rib 1112. When the annular rib 1112 is deformed, the strain gauge 12 can detect the deformation of the annular rib 1112. When the strain gauge 12 detects a preset value, a first sensing signal can be generated. The structure of the bearing part 1111 and the annular rib 1112 realizes the feedback of the first sensing element 11 to the pressing action, ensuring the normal use of the pressing assembly 1. In addition, the strain gauge 12 can be arranged on the circumferential surface of the annular rib 1112 and located at the radial outer periphery of the annular rib 1112, so as to avoid the pressure acting directly on the strain gauge 12 during pressing, causing the strain gauge 12 to measure the inaccurate result and affecting the use of the pressing assembly 1.

[0041] According to one embodiment of the present invention, the annular rib 1112 is constructed as at least one layer of spirally arranged, and the spiral lift of the annular rib 1112 is d and d≥0mm. Since the annular rib 1112 is a structure that generates a deformation amount of the deformation part 111, the structure of the annular rib 1112 will affect the use of the pressing component 1. Specifically, the annular rib 1112 is constructed as at least one layer of spirally arranged, which can be understood as the annular rib 1112 at least surrounds the bearing part 1111 once, and the specific number of circles can be set according to the actual assembly situation. The spiral lift of the annular rib 1112 is d, d≥0, mm, which can be understood as the annular rib 1112 can extend in the height direction when surrounding the bearing part 1111, or it can be arranged only in a plane, and the specific lift amount can be limited according to the actual assembly space size. However, it should be noted that d needs to be set with an upper limit to limit the space occupied by the deformation part 111 to avoid the deformation part 111 from being unable to be assembled due to occupying too much space.

[0042] In some embodiments, the value range of d can be 0≤d≤10 mm. This type of pressing assembly 1 occupies a small space and is suitable for structures with small assembly space, such as light switches.

[0043] In some embodiments, the value range of d can be 0≤d≤50mm. This type of pressing component 1 occupies a larger space than the above-mentioned embodiment of 0≤d≤10mm, and is suitable for use in structures with large assembly space. The preset value of the deformation amount of the first sensing element 11 can be set to a relatively large value, and a certain pressing force is required when pressing, but the risk of accidental touch can be further increased.

[0044] In some embodiments, the value range of d can be 0≤d≤100mm. Compared with the above two types of pressing assemblies 1, this type of pressing assembly 1 can be assembled in a large mechanical structure. It has high pressing force requirements, but high safety and can reduce risks.

[0045] According to one embodiment of the present invention, the strain gauge 12 is constructed as a plurality of strain gauges 12, and the plurality of strain gauges 12 are arranged at intervals on the radial inner surface or radial outer surface of the annular rib 1112. Since the strain gauge 12 is a structure used by the pressing component 1 to detect the deformation amount to generate the first sensing signal, the structure of the strain gauge 12 will affect the accuracy of the first sensing member 11 when in use. Specifically, the strain gauge 12 is constructed as a plurality of strain gauges 12, and the plurality of strain gauges 12 are arranged at intervals on the radial outer surface of the annular rib 1112. The structure of the plurality of strain gauges 12 improves the accuracy of the strain gauge 12 in detecting the deformation amount of the annular rib 1112. At the same time, the plurality of strain gauges 12 are arranged at intervals on the radial outer surface of the annular rib 1112 to reduce the influence of the pressing force on the detection result, and further improve the accuracy. In addition, the strain gauge 12 can also be arranged on the radial inner surface of the annular rib 1112. The specific position selection can be limited according to the number of turns of the annular rib 1112. It is only necessary to ensure that the pressure does not directly act on the strain gauge 12 when pressing.

[0046] The key device 2 according to the present invention is briefly described below.

[0047] The key device 2 according to the present invention comprises the pressing component 1 in the above-mentioned embodiment, a feedback component 21 and a control board 22, wherein the feedback component 21 is arranged on one side of the pressing component 1 in the thickness direction and can generate sound, light and / or vibration; the control board 22 is respectively connected to the pressing component 1 and the feedback component 21, and is suitable for controlling the feedback component 21 to work after the pressing component 1 receives the first sensing signal. Since the key device 2 according to the present invention comprises the pressing component 1 in the above-mentioned embodiment, after the pressing component 1, the feedback component 21 and the control board 22 are assembled to form the key device 2, when the external pressure is generated, the first sensing member 11 is deformed, and the strain gauge 12 detects the deformation amount of the deformation part 111 on the first sensing member 11 in real time. When the deformation amount of the deformation part 111 reaches a preset value, the strain gauge 12 generates a first sensing signal according to the detected deformation amount. The key device 2 can determine that the pressing is successful according to the first sensing signal and can control the component corresponding to the key device 2 to start or shut down. At this time, the control board 22 can control the feedback component 21 to emit sound, light or vibration to prompt the successful pressing. The arrangement of the feedback component 21 and the control panel 22 enables the key device 2 to have a prompting function, so that the key device 2 can promptly feedback whether the pressing is successful after being pressed, thereby improving the user experience of the key device 2 .

[0048] According to one embodiment of the present invention, the button device 2 has a second sensing element 23, which is disposed on one side of the first sensing element 11 and is electrically connected to the control board 22. The second sensing element 23 is suitable for generating a second sensing signal according to a change in electrical properties after contacting the target object, and the control board 22 is suitable for controlling the feedback component 21 according to the first sensing signal and / or the second sensing signal.

[0049] Specifically, the key device 2 is also provided with a second sensing key, the second sensing element 23 is arranged on one side of the first sensing element 11 and is electrically connected to the control board 22, and the second sensing element 23 can change its electrical properties after contacting with a target object, where the target object can be understood as an object that contacts the key device 2 and applies force to the key device 2 when pressed. When the key device 2 is pressed, the second sensing element 23 can generate a second sensing signal according to the generated electrical property change, and when the electrical property change reaches a preset value, the second sensing element 23 generates and transmits a second sensing signal, and the control board 22 can control the feedback component 21 to provide feedback after receiving the second sensing signal so as to prompt that the pressing is successful.

[0050] According to an embodiment of the present invention, the key device 2 further includes: a decorative layer 24, the decorative layer 24 is disposed on the outer surface of the second sensing element 23 and covers the second sensing element 23, and the decorative layer 24 is formed with a mark 241 facing the second sensing element 23. Specifically, the key device 2 is further provided with a decorative layer 24, the decorative layer 24 is disposed on the outer surface of the second sensing element 23 and covers the second sensing element 23, and a mark 241 facing the second sensing element 23 can be disposed on the decorative layer 24, and the mark 241 can be engraved with information such as patterns and characters to improve the aesthetics and recognition of the key device 2.

[0051] According to an embodiment of the present invention, a avoidance hole 252 is formed on the deformation part 111, and the key device 2 further includes a light-emitting lamp and a backlight diffusion film 251. The light-emitting lamp is arranged on one side of the first sensing element 11 in the thickness direction and is suitable for emitting light toward the decorative layer 24 through the avoidance hole 252; the backlight diffusion film 251 is arranged between the light-emitting lamp and the decorative layer 24, and the backlight diffusion film 251 is suitable for diffusing the light emitted by the light-emitting lamp to the decorative layer 24. Specifically, the key device 2 is further provided with a light-emitting lamp and a backlight diffusion film 251, wherein the light-emitting lamp is arranged on one side of the first sensing element 11 in the thickness direction, the backlight diffusion film 251 is arranged between the light-emitting lamp and the decorative layer 24, and the avoidance hole 252 is also arranged on the deformation part 111. When the key device 2 is assembled, the light emits light, and the light passes through the backlight diffusion film 251 and then through the avoidance hole 252 to reach the decorative layer 24 to illuminate the logo 241 on the decorative layer 24, further improving the recognition of the key device 2, so that the key device 2 can also be used in a dark environment, thereby improving the user experience of the key device 2.

[0052] The vehicle according to the present invention will be briefly described below.

[0053] The vehicle according to the present invention includes the button device 2 in the above embodiment. Since the vehicle according to the present invention includes the button device 2 in the above embodiment, the button device 2 can be connected to the functional components in the vehicle after being assembled with the vehicle. When pressed, the button device 2 can detect the deformation and electrical property changes during the pressing process through the first sensing member 11 and the second sensing member 23 respectively. When the button device 2 receives the first sensing signal and / or the second sensing signal, it can be determined that the pressing is successful. At this time, the pressing device can control the corresponding functional component to start or shut down. After the button device 2 is connected to the vehicle, it can avoid accidental touching when pressing the functional components in the vehicle, and make the pressing process have a real stroke, which can improve the safety of the vehicle and the user experience.

[0054] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0055] In the description of the present invention, "first feature" or "second feature" may include one or more of the features.

[0056] In the description of the present invention, "plurality" means two or more.

[0057] In the description of the present invention, a first feature being “on” or “under” a second feature may include that the first and second features are directly in contact with each other, or may include that the first and second features are not in direct contact with each other but are in contact with each other via another feature therebetween.

[0058] In the description of the present invention, “on”, “over” and “above” a first feature from a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.

[0059] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0060] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A pressing assembly, characterized in that: include: A first induction member, wherein the first induction member is formed with a deformation portion, and the deformation portion is suitable for deformation along a thickness direction after being compressed; A strain gauge is disposed on at least a portion of the surface of the deformable portion, and the strain gauge is suitable for detecting the deformation amount of the deformable portion and generating a corresponding first sensing signal according to the deformation amount.

2. The pressing assembly according to claim 1, characterized in that: At least part of the deformation portion is disposed in a surrounding manner so as to deform in the axial direction after being compressed and / or at least part of the deformation portion protrudes in the thickness direction so as to deform after being compressed.

3. The pressing assembly according to claim 2, characterized in that: The first induction element comprises: A plate portion, wherein the plate portion is formed with a mounting hole suitable for accommodating the deformable portion, and the mounting hole extends in the thickness direction of the deformable portion to avoid deformation of the deformable portion; wherein At least a portion of the deformation portion is received in the mounting hole and connected to an inner wall of the mounting hole.

4. The pressing assembly according to claim 3, characterized in that: The deformation portion comprises: load-bearing part; An annular rib, one end of which is connected to the outer edge of the bearing portion, the annular rib is arranged around at least a portion of the outer circumference of the bearing portion, and the strain gauge is arranged on the circumferential surface of the annular rib.

5. The pressing assembly according to claim 4, characterized in that: The annular rib is constructed as at least one layer that is spirally arranged, and the spiral lift of the annular rib is d and d≥0 mm.

6. The pressing assembly according to claim 4, characterized in that: The strain gauge is structured in multiple numbers and the multiple strain gauges are arranged at intervals on the radial inner surface or the radial outer surface of the annular rib.

7. A key device, characterized in that: include: A pressing assembly, wherein the pressing assembly is constructed as the pressing assembly according to any one of claims 1 to 6; A feedback component, which is disposed on one side of the pressing component in the thickness direction and is suitable for generating sound, light and / or vibration; A control board, wherein the control board is electrically connected to the pressing component and the feedback component respectively, and the control board is suitable for controlling the feedback component to work after the pressing component receives the first sensing signal.

8. The key device according to claim 7, characterized in that: Also includes: A second sensing element, the second sensing element is arranged on one side of the first sensing element and is electrically connected to the control board, the second sensing element is suitable for generating a second sensing signal according to a change in electrical properties after contacting the target object, and the control board is suitable for controlling the feedback component according to the first sensing signal and / or the second sensing signal.

9. The key device according to claim 8, characterized in that: Also includes: A decorative layer is provided on the outer surface of the second sensing element and covers the second sensing element, and a mark directly facing the second sensing element is formed on the decorative layer.

10. The key device according to claim 9, characterized in that: An avoidance hole is formed on the deformation portion; The button device also includes: a light emitting lamp, the light emitting lamp being arranged on one side in the thickness direction of the first induction element and being adapted to emit light toward the decorative layer through the avoidance hole; A backlight diffusion film is disposed between the light emitting lamp and the decoration layer, and is suitable for diffusing the light emitted by the light emitting lamp to the decoration layer.

11. A vehicle, characterized in that: A key device comprising any one of claims 7 to 9.

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