CN215342367U

CN215342367U - Key assembly

Info

Publication number: CN215342367U
Application number: CN202023312208.7U
Authority: CN
Inventors: 朱跃光; 任金宝; 张子强
Original assignee: Goertek Inc
Current assignee: Goertek Inc
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-12-28
Anticipated expiration: 2030-12-31

Abstract

The utility model discloses a key assembly, comprising: panel components, casing subassembly, vibration subassembly and drive plate. The panel assembly comprises a touch cover plate and a pressure sensor which are stacked, the shell assembly is hollow and is matched with the panel assembly to limit an installation space, the vibration assembly is arranged in the installation space and comprises a cantilever beam and a vibrator, the cantilever beam is connected with the shell assembly and the panel assembly simultaneously, the cantilever beam is arranged on the vibrator, the drive plate is arranged in the installation space, the drive plate is respectively in communication connection with the pressure sensor and the vibrator, and the pressure sensor controls the vibrator to vibrate automatically when detecting that the touch pressure applied to the touch cover plate is greater than a set value, so that the vibrator drives the panel assembly to vibrate. According to the key assembly, by arranging the structure that the cantilever beam is matched with the vibrator, the pressure sensor can realize the effects of vibration feedback and false touch prevention by detecting the touch pressure.

Description

Key assembly

Technical Field

The utility model relates to the field of electrical parts, in particular to a key assembly.

Background

With the increasing requirements of consumers on the driving experience and the driving safety of vehicles, the steering wheel with the touch keys is gradually favored by consumers. In the related art, although the steering wheel key can realize the touch operation function, the function is single, more the existing steering wheel touch key allows the user to operate the function key, and the actual operation is successful or not without obvious prompt, so that the condition that the steering wheel key is touched by mistake can occur, the probability of head lowering observation of a driver is increased, the driver can not put full mind and body into actual driving work, and the driving safety is greatly reduced.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the utility model provides the key assembly which has the advantages of being capable of preventing mistaken touch and convenient to operate.

A key assembly according to an embodiment of the present invention includes: the panel assembly comprises a touch cover plate and a pressure sensor which are arranged in a stacked mode, and the pressure sensor is used for detecting touch pressure applied to the touch cover plate; the shell assembly is arranged in a hollow mode and is matched with the panel assembly to limit an installation space; the vibration assembly is arranged in the installation space and comprises a cantilever beam and a vibrator, the cantilever beam is simultaneously connected with the shell assembly and the panel assembly, and the vibrator is arranged on the cantilever beam; the drive plate is arranged in the installation space and is in communication connection with the pressure sensor and the vibrator respectively, and when the pressure sensor detects that the touch pressure applied to the touch cover plate is greater than a set value, the drive plate controls the vibrator to vibrate so that the vibrator drives the panel assembly to vibrate.

According to the key assembly provided by the embodiment of the utility model, the structural arrangement is simple, the key assembly not only has a displayable and multifunctional operation interface, but also has the advantages that through the arrangement of the structure of matching the cantilever beam and the vibrator, the pressure sensor can realize the effects of vibration feedback and false touch prevention by detecting the touch pressure, and the operation experience of the key assembly is greatly improved.

According to some embodiments of the utility model, the housing assembly comprises a middle housing and a rear housing, the middle housing is arranged in a hollow manner, two axial ends of the middle housing are arranged in an open manner, the panel assembly and the rear housing are used for closing the two axial ends of the middle housing to define the installation space, and the cantilever beam is fixedly connected with the inner peripheral wall of the middle housing.

In some embodiments of the present invention, the inner peripheral wall of the middle case is provided with a connecting portion extending toward a central axis direction thereof, and the cantilever beam is connected to the connecting portion.

According to some embodiments of the utility model, the cantilever beam comprises: the two cantilever arms are simultaneously connected with the shell assembly and the panel assembly; the body part is arranged between the two cantilever arms and is respectively connected with the two cantilever arms, and the vibrator is arranged on the body part.

In some embodiments of the present invention, both ends of the body portion in the length direction are bent and extended toward a direction close to the panel assembly to define a fitting groove, and the vibrator is mounted in the fitting groove.

In some embodiments of the utility model, the two cantilever arms and the body portion are formed as a unitary stamping.

In some embodiments of the present invention, two ends of each cantilever in the length direction are respectively provided with a first mounting hole, a second mounting hole is provided between the two first mounting holes, the key assembly further includes a first fixing member and a second fixing member, the first fixing member passes through the first mounting hole to connect the cantilever with the housing assembly, and the second fixing member passes through the second mounting hole to connect the cantilever with the panel assembly.

According to some embodiments of the utility model, the panel assembly further comprises: the support, the support with the cooperation of touch cover plate is in order to inject assembly space, pressure sensor establishes in the assembly space, touch cover plate relatively when receiving touch pressure the support removes in order to extrude pressure sensor, pressure sensor is used for detecting touch cover plate's pressure size.

In some embodiments of the utility model, the panel assembly further comprises: the touch sensor is arranged in the assembly space and attached to the inner surface of the touch cover plate to detect the touch position of the touch cover plate, and the light-emitting device is arranged between the support and the touch sensor.

In some embodiments of the utility model, the panel assembly further comprises: and the elastic supporting piece is arranged on one side of the pressure sensor close to the touch cover plate.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is an exploded view of a key assembly according to one embodiment of the present invention;

fig. 2 is a vertical cross-sectional view of a key assembly according to one embodiment of the present invention;

FIG. 3 is a schematic diagram of the overall structure of a cantilever beam according to one embodiment of the present invention;

FIG. 4 is a schematic illustration of an exploded structure of a panel assembly according to one embodiment of the present invention at a first viewing angle;

FIG. 5 is a schematic illustration of an exploded structure of a panel assembly according to one embodiment of the present invention at a second view angle;

FIG. 6 is a vertical cross-sectional view of a panel assembly according to one embodiment of the present invention.

Reference numerals:

the key assembly 100 is provided with a key assembly,

the panel assembly 1, the touch cover 11, the touch area 11a, the display area 1b, the flat plate portion 111, the enclosing plate portion 112, the sliding protrusion 1121, the pressure sensor 12, the bracket 13, the receiving groove 131, the sliding groove 132, the touch sensor 14, the light emitting device 15, the elastic support 16, the fitting space 17,

a housing assembly 2, an installation space 2a, a middle case 21, a connection part 211, a rear case 22, a fixing post 221,

the vibration module 3, the cantilever beam 31, the cantilever arm 311, the first mounting hole 311a, the second mounting hole 311b, the body portion 312, the mounting groove 312a, the transverse plate 3121, the vertical plate 3122, the vibrator 32,

a driving plate 4 and a fixing hole 41.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar components or components having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

A key assembly 100 with tactile feedback according to an embodiment of the utility model is described below with reference to fig. 1-6.

As shown in fig. 1-2, a key assembly 100 for guiding band haptic feedback according to an embodiment of the present invention includes: panel assembly 1, housing assembly 2, vibration assembly 3 and drive plate 4.

The panel assembly 1 may include a touch cover 11 and a pressure sensor 12 stacked on each other, and the pressure sensor 12 is configured to detect a touch pressure applied to the touch cover 11. The housing assembly 2 is hollow and the housing assembly 2 and the panel assembly 1 cooperate to define an installation space 2 a.

In the specific example shown in fig. 5, the touch cover 11 may be provided with a touch area 11a and a display area 11b, different function keys, such as a volume adjustment key, a song cutting key, a screen display mode switching key, etc., may be provided in the touch area 11a, and the positions corresponding to the different function keys may be selectively touched according to the required functions. The display area 11b is mainly used for displaying an actual operation interface so as to facilitate the actual operation of the user. The touch area 11a and the display area 11b may be separately provided, or the touch area 11a and the display area 11b may be integrally provided, that is, the display area 11b may have both display and touch sensing functions. Of course, the touch area 11a may also be configured with a touch feedback mode, such as touch vibration, touch sound generation, etc., and the configuration may be selected according to actual use requirements.

As shown in fig. 2, the vibration assembly 3 and the driving plate 4 are both disposed in the installation space 2a, and the vibration assembly 3 may include a cantilever beam 31 and a vibrator 32, the cantilever beam 31 being connected to both the housing assembly 2 and the panel assembly 1, and the vibrator 32 being disposed on the cantilever beam 31. That is, one portion of the cantilever beam 31 is connected to the housing assembly 2, the other portion of the cantilever beam 31 is connected to the panel assembly 1, and the housing assembly 2 and the panel assembly 1 are connected together by the cantilever beam 31.

The driving plate 4 is respectively in communication connection with the pressure sensor 12 and the vibrator 32, and when the pressure sensor 12 detects that the touch pressure applied to the touch cover plate 11 is greater than a set value, the driving plate 4 can control the vibrator 32 to vibrate, so that the vibrator 32 drives the panel assembly 1 to vibrate. Specifically, since the driving plate 4 is communicatively connected to the pressure sensor 12 and the vibrator 32, respectively, the driving plate 4 can receive the pressure signal detected by the pressure sensor 12 and select whether to drive the vibrator 32 to vibrate according to the type of the pressure signal. When the touch pressure on the touch cover plate 11 is smaller than the set value, the pressure sensor 12 determines that the touch is a false touch and automatically filters out a false touch signal, and the driving plate 4 controls the vibrator 32 not to vibrate. When the touch pressure received on the touch cover plate 11 is greater than the set pressure, the pressure sensor 12 transmits the touch signal to the drive plate 4, the drive plate 4 drives the vibrator 32 to vibrate, and the vibrator 32 can drive the panel assembly 1 to vibrate through the cantilever beam 31 during the self vibration, so that the effect of preventing mistaken touch and vibration feedback can be realized.

According to the key assembly 100 with vibration feedback provided by the embodiment of the utility model, the structural arrangement is simple, the key assembly not only has a displayable and multifunctional operation interface, but also has the structure that the cantilever beam 31 and the vibrator 32 are matched, the pressure sensor 12 can realize the effects of vibration feedback and false touch prevention by detecting the magnitude of touch pressure, and the operation experience of the key assembly 100 is greatly improved.

As shown in fig. 1, according to some embodiments of the present invention, the case assembly 2 may include a middle case 21 and a rear case 22, the middle case 21 is disposed in a hollow manner and both axial ends of the middle case 21 are disposed to be open, the panel assembly 1 and the rear case 22 are used to close both axial ends of the middle case 21 to define an installation space 2a, and the cantilever beam 31 may be fixedly connected to an inner circumferential wall of the middle case 21. From this, through the aforesaid setting, casing subassembly 2 sets up the component, can reduce the assembly degree of difficulty between cantilever beam 31 and the casing subassembly 2, and the axial both ends of mesochite 21 all open the setting and can make things convenient for cantilever beam 31 to install, can promote cantilever beam 31's assembly efficiency. Moreover, since the cantilever beam 31 and the middle shell 21 can be flexibly connected, when the vibrator 32 performs natural vibration, the flexible deformation amount of the cantilever beam 31 can be increased, so that the vibration feedback effect of the key assembly 100 can be improved.

In the specific example shown in fig. 1, a plurality of fixing posts 221 are disposed on the rear shell 22 at intervals along the circumferential direction of the rear shell, each fixing post 221 is provided with a threaded hole, the driving plate 4 is provided with fixing holes 41 corresponding to the plurality of fixing posts 221 one by one, and the driving plate 4 can be fixed on the fixing posts 221 of the rear shell 22 by screws. Thus, with the above arrangement, the fixing of the drive plate 4 to the rear case 22 can reduce the influence of the cantilever beam 31 on the drive plate 4 when vibrating, so that the operational stability of the drive plate 4 can be ensured. Alternatively, the fixing posts 221 may be made of a rubber material, the rubber material has high flexibility, and when the vibration assembly 3 vibrates, the fixing posts 221 may perform a buffering function, so that the driving plate 4 may be protected by buffering.

As shown in fig. 2, in some embodiments of the present invention, the inner peripheral wall of the middle shell 21 may be provided with a connecting portion 211 extending toward the central axis direction thereof, and the cantilever beam 31 may be connected to the connecting portion 211, thereby facilitating assembly between the middle shell 21 and the cantilever beam 31. Alternatively, the cantilever beam 31 may be screwed with the connecting portion 211. It will be understood, of course, that the manner of assembly between the mid-shell 21 and the cantilevered beam 31 is not so limited. For example, the cantilever beam 31 and the middle shell 21 may be integrally molded.

As shown in fig. 3, according to some embodiments of the present invention, the cantilever beam 31 may include: two cantilever arms 311 and a body portion 312. Two of the suspension arms 311 are connected to the housing assembly 2 and the panel assembly 1, a body 312 is disposed between the two suspension arms 311 and connected to the two suspension arms 311, respectively, and the vibrator 32 is disposed on the body 312. Therefore, the overall structure of the cantilever beam 31 can be simpler through the arrangement. Alternatively, the two cantilever arms 311 and the main body 312 may be flexibly connected, and the two cantilever arms 311 and the housing assembly 2 may also be flexibly connected, so that when the vibrator 32 performs natural vibration, the vibrator 32 can smoothly drive the cantilever beam 31 to vibrate, and thus vibration can be smoothly transmitted to the panel assembly 1, and a good vibration feedback effect can be achieved.

As shown in fig. 3, in some embodiments of the present invention, both ends of the body 312 in the length direction are bent and extended toward the direction close to the panel assembly 1 to define a fitting groove 312a, and the vibrator 32 can be installed in the fitting groove 312a, so that the vibrator 32 can be conveniently installed and fixed, and the structural firmness of the vibration assembly 3 is greatly improved. It should be noted that the assembly form between the vibrator 32 and the cantilever beam 31 is not limited to this, as long as the vibrator 32 can drive the cantilever beam 31 to vibrate to achieve the effect of vibration feedback, and the utility model is not limited to this.

Alternatively, the two cantilever arms 311 and the body portion 312 may be formed as an integral stamping, so that the overall structure of the cantilever beam 31 may be simpler, the production efficiency of the cantilever beam 31 may be improved, and the assembly efficiency of the panel assembly 1 may also be improved. Further, because cantilever beam 31 is the stamping workpiece of an organic whole, when vibrator 32 carries out the natural vibration, can guarantee cantilever beam 31's the uniformity of whole vibration to can promote panel assembly 1's vibration feedback effect.

As shown in fig. 3, in some embodiments of the present invention, two ends of each cantilever 311 in the length direction are respectively provided with a first mounting hole 311a, a second mounting hole 311b is provided between the two first mounting holes 311a, the key assembly 100 may further include a first fixing member and a second fixing member, the first fixing member may pass through the first mounting hole 311a to connect the cantilever 311 with the casing assembly 2, and the second fixing member may pass through the second mounting hole 311b to connect the cantilever 311 with the panel assembly 1, so that, by the above arrangement, the connection structure between the cantilever beam 31 and the panel assembly 1 and the casing assembly 2 may be simpler, and the connection firmness between the cantilever beam 31 and the panel assembly 1 and the casing assembly 2 may be improved.

Specifically, the first fixing member may connect the two cantilevers 311 with the housing component 2, the second fixing member may connect the two cantilevers 311 with the panel component 1, and since the first mounting hole 311a and the second mounting hole 311b are respectively disposed on the two cantilevers 311, the cantilever beam 31 and the panel component 1 and the housing component 2 may be connected at multiple points, so that the assembling firmness between the cantilever beam 31 and the panel component 1 and the housing component 2 may be improved, and the vibration consistency between the vibration component 3 and the panel component 1 may be improved. Alternatively, the first fixing member and the second fixing member may be screws, or may be bolt and nut assemblies.

As shown in fig. 3, in an embodiment of the present invention, the cantilever beam 31 includes two cantilever arms 311 and a body 312, which are spaced apart from each other, and the two cantilever arms 311 and the body 312 are formed as an integrally stamped sheet metal part. Each cantilever 311 is formed in a long strip shape, two ends of each cantilever 311 in the length direction are respectively provided with a first mounting hole 311a, and three second mounting holes 311b arranged at intervals are arranged between the two first mounting holes 311 a. The body portion 312 is disposed between the two suspension arms 311 and connected to the two suspension arms 311, the body portion 312 includes a horizontal plate 3121 and two vertical plates 3122, the two vertical plates 3122 are disposed at two ends of the horizontal plate 3121 in the length direction and extend in a bending manner toward the direction close to the panel assembly 1 with respect to the horizontal plate 3121, and the two vertical plates 3122 and the horizontal plate 3121 define a mounting groove 312a for receiving the vibrator 32.

As shown in fig. 4-6, according to some embodiments of the present invention, the panel assembly 1 may further include a bracket 13, the bracket 13 and the touch cover 11 cooperate to define a mounting space 17, the pressure sensor 12 may be disposed in the mounting space 17, the touch cover 11 may move relative to the bracket 13 when being pressed by a touch to press the pressure sensor 12, and the pressure sensor 12 is used for detecting the pressure of the touch cover 11.

Specifically, when the user touches the touch area 11a on the touch cover 11, the pressure of the finger of the user drives the touch cover 11 to move toward the direction close to the bracket 13, so that the pressure sensor 12 is pressed, and the pressure sensor 12 deforms to detect the pressure applied to the touch area 11 a. When the pressure applied to the touch area 11a is greater than the set value, the pressure sensor 12 transmits a trigger signal to the driving plate 4, and the driving plate 4 controls the vibrator 32 to vibrate. On the contrary, when the pressure applied to the touch area 11a is smaller than the set value, the pressure sensor 12 will determine that the touch signal is caused by the false touch, and will automatically shield the false touch signal. When the user touches and presses, the touch cover 11 moves to the initial position toward the direction away from the bracket 13 by the elastic force of the pressure sensor 12 itself because of its elasticity.

From this, through above-mentioned setting, touch cover plate 11 can remove in order to extrude pressure sensor 12 relative to support 13, and pressure sensor 12 can be through the size of how much detection touch pressure of self deformation volume, compares in current capacitive sensor, and pressure sensor 12's theory of operation is simpler, and it is more convenient to operate.

As shown in fig. 4-6, in some embodiments of the utility model, the panel assembly 1 may further comprise: the touch cover plate comprises a touch sensor 14 and a light emitting device 15, wherein the touch sensor 14 can be arranged in the assembly space 17 and is attached to the inner surface of the touch cover plate 11, the touch sensor 14 is used for detecting the touch position of the touch cover plate 11, the light emitting device 15 is arranged between the support 13 and the touch sensor 14, the touch sensor 14 can detect the touch position of the touch cover plate 11, and different functional areas corresponding to different touch positions are different, so that different functions can be triggered. Alternatively, the touch sensor 14 may be a transparent or openwork ITO film. The light emitting device 15 is configured to emit light to provide backlight to the touch cover 11, whereby it is possible to provide a sufficient light source for the display area 11b, improving the display effect of the display area 11 b. Optionally, the light emitting device 15 may be an individual light emitting element (LED lamp bead), and the light emitting device 15 may also be a display screen (LED display screen or OLED display screen), and the like.

In some embodiments of the present invention, the pressure sensor 12 may be formed as a transparent member, and the pressure sensor 12 may be disposed between the touch sensor 14 and the light emitting device 15, or the pressure sensor 12 may be disposed between the light emitting device 15 and the bracket 13, so that the assembly flexibility of the pressure sensor 12 may be improved, and the assembly position thereof may be selected according to actual assembly requirements. It is understood that the pressure sensor 12 is disposed between the touch sensor 14 and the light emitting device 15 or between the light emitting device 15 and the support 13, and since the upper and lower surfaces of the pressure sensor 12 are attached to the corresponding devices, the touch pressure can be smoothly transmitted to the pressure sensor 12 when the touch cover 11 is moved relative to the support 13. Since the pressure sensor 12 is a transparent member, the transparent member can normally transmit light, and the backlight function of the light emitting device 15 is not affected even when the pressure sensor 12 is disposed between the touch sensor 14 and the light emitting device 15.

In other embodiments of the present invention, the pressure sensor 12 may be formed as a non-transparent member, and the pressure sensor 12 may be disposed between the light emitting device 15 and the bracket 13, so that a backlight effect of the light emitting device 15 may be ensured, and thus the touch cover 11 may have a good display effect.

In the specific example shown in fig. 5, a receiving groove 131 may be provided on a surface of one side of the bracket 13 close to the light emitting device 15, the pressure sensor 12 may be disposed in the receiving groove 131, a portion of the pressure sensor 12 extends out of the receiving groove 131 and is attached to the light emitting device 15, and the receiving groove 131 may play a role in fixing and limiting the pressure sensor 12, so that accuracy of pressure detection of the pressure sensor 12 may be improved. Alternatively, the contour of the receiving groove 131 may be adapted to the shape of the pressure sensor 12, thereby further improving the assembling firmness between the pressure sensor 12 and the bracket 13.

Optionally, an adhesive layer may be disposed in the accommodating groove 131, and the pressure sensor 12 may be fixed in the accommodating groove 131 through the adhesive layer, that is, a layer of adhesive layer may be disposed between the pressure sensor 12 and the bottom wall of the accommodating groove 131, and the adhesive layer may bond the pressure sensor 12 and the bracket 13 together, so as to further improve the assembling firmness between the pressure sensor 12 and the bracket 13.

Optionally, the panel assembly 1 may further include an elastic supporting member 16, the elastic supporting member 16 may be disposed between the light emitting device 15 and the pressure sensor 12, and the elastic supporting member 16 may make the pressure sensor 12 more uniformly stressed, so that the accuracy of pressure detection of the pressure sensor 12 may be improved. Also, the elastic support 16 has elasticity, so that it is possible to provide the touch cover 11 with an elastic force to return to the original state. Further, the elastic support 16 may be a silicone pad.

In the specific example shown in fig. 5, the touch cover 11 may include a flat plate portion 111 and an arm portion 112 extending toward a direction close to the holder 13 relative to the flat plate portion 111, the arm portion 112, and the holder 13 may cooperate with each other to define the fitting space 17, and the touch region 11a and the display region 11b are provided on the flat plate portion 111. Specifically, the flat plate portion 111 may be horizontally disposed, the touch region 11a and the display region 11b may be disposed on the flat plate portion 111 and presented to a user, the surrounding plate portion 112 extends around a circumferential direction of the flat plate portion 111, one end of the surrounding plate portion 112 is connected to the flat plate portion 111, and the other end of the surrounding plate portion 112 extends toward a direction close to the bracket 13, so that, after the bracket 13 is completely fitted with the surrounding plate portion 112, the bracket 13, the surrounding plate portion 112, and the flat plate portion 111 jointly enclose a relatively closed assembly space 17. Alternatively, the flat plate portion 111 and the surrounding plate portion 112 may be formed as an integrally molded piece.

As shown in fig. 5, one of the surrounding plate portion 112 and the bracket 13 may be provided with a slide groove 132, and the other of the surrounding plate portion 112 and the bracket 13 may be provided with a slide protrusion 1121, and the slide protrusion 1121 is slidably engaged with the slide groove 132 when the surrounding plate portion 112 moves up and down with respect to the bracket 13. That is, the sliding groove 132 may be provided in the surrounding portion 112, the sliding protrusion 1121 may be provided in the bracket 13, or the sliding protrusion 1121 may be provided in the surrounding portion 112, the sliding groove 132 may be provided in the bracket 13, and the sliding protrusion 1121 may be inserted into the sliding protrusion 1121, so that the fitting between the touch cover 11 and the bracket 13 may be made smoother by the above arrangement.

It will of course be appreciated that the panel assembly 1 may further comprise a positioning means (not shown) for positioning the shroud portion 112 and the bracket 13 when the panel assembly 1 is not subjected to a touch pressure and the touch cover 11 is in an initial position. When the touch cover 11 is subjected to touch pressure, the positioning device is in an open state, and the surrounding plate part 112 can slide relative to the bracket 13. When the touch pressure on the touch cover 11 disappears, the fence portion 112 moves to the initial position, at which time the positioning device is triggered and enters the locked state.

In some embodiments of the present invention, the vibrator 32 may be an LRA vibrator, the LRA vibrator may flexibly select vibration time, vibration strength, and vibration frequency (long vibration or short vibration) during vibration feedback, and different vibration sensations may be selected and set according to functions of different keys or user preferences, thereby greatly enriching user experience.

In some embodiments of the present invention, the key assembly 100 with vibration feedback may be a key for a steering wheel of an automobile, and the key assembly 100 in the present invention has good effects of preventing false touch and vibration feedback, so that when applied to a steering wheel of an automobile, the problem that the existing steering wheel key frequently makes false touch in the actual operation process can be well solved, and the good effect of vibration feedback can provide a good prompt for a driver, so as to reduce the driver's efforts dispersed to the steering wheel key in the driving process, thereby greatly improving the driving safety.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the device or component in question must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered as limiting the utility model. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the two components can be directly connected or indirectly connected through an intermediate medium, and the two components can be communicated with each other. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the utility model have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the utility model, the scope of which is defined by the claims and their equivalents.

Claims

1. A key assembly, comprising:

the panel assembly comprises a touch cover plate and a pressure sensor which are arranged in a stacked mode, and the pressure sensor is used for detecting touch pressure applied to the touch cover plate;

the shell assembly is arranged in a hollow mode and is matched with the panel assembly to limit an installation space;

the vibration assembly is arranged in the installation space and comprises a cantilever beam and a vibrator, the cantilever beam is simultaneously connected with the shell assembly and the panel assembly, and the vibrator is arranged on the cantilever beam; and

the drive plate is arranged in the installation space and is in communication connection with the pressure sensor and the vibrator respectively, and when the pressure sensor detects that the touch pressure applied to the touch cover plate is greater than a set value, the drive plate controls the vibrator to vibrate so that the vibrator drives the panel assembly to vibrate.

2. The key assembly according to claim 1, wherein the casing assembly includes a middle casing and a rear casing, the middle casing is hollow and has two axial ends open, the panel assembly and the rear casing are used for closing the two axial ends of the middle casing to define the installation space, and the cantilever beam is fixedly connected to the inner peripheral wall of the middle casing.

3. The key assembly according to claim 2, wherein the inner peripheral wall of the middle case is provided with a connecting portion extending toward a central axis direction thereof, and the cantilever beam is connected to the connecting portion.

4. The key assembly of claim 1, wherein the cantilever beam comprises:

the two cantilevers are connected with the shell assembly and the panel assembly at the same time;

the body part is arranged between the two cantilever arms and is respectively connected with the two cantilever arms, and the vibrator is arranged on the body part.

5. The key assembly according to claim 4, wherein both ends of the body portion in the length direction are bent and extended toward a direction close to the panel assembly to define a fitting groove, and the vibrator is mounted in the fitting groove.

6. The key assembly of claim 4, wherein the two cantilever arms and the body portion are formed as a unitary stamping.

7. The key assembly of claim 4, wherein each of the cantilevers has a first mounting hole at each of two ends in the length direction, and a second mounting hole is disposed between the two first mounting holes, the key assembly further comprising a first fixing member and a second fixing member, the first fixing member passing through the first mounting hole to connect the cantilever with the casing assembly, and the second fixing member passing through the second mounting hole to connect the cantilever with the panel assembly.

8. The key assembly of any one of claims 1-7, wherein the faceplate assembly further comprises: the support, the support with the cooperation of touch cover plate is in order to inject assembly space, pressure sensor establishes in the assembly space, touch cover plate relatively when receiving touch pressure the support removes in order to extrude pressure sensor, pressure sensor is used for detecting touch cover plate's pressure size.

9. The key assembly of claim 8, wherein the panel assembly further comprises: the touch sensor is arranged in the assembly space and attached to the inner surface of the touch cover plate to detect the touch position of the touch cover plate, and the light-emitting device is arranged between the support and the touch sensor.

10. The key assembly of claim 8, wherein the face plate assembly further comprises: and the elastic supporting piece is arranged on one side of the pressure sensor close to the touch cover plate.