CN214898180U - Key assembly - Google Patents

Abstract

The utility model discloses a key assembly, include: the touch cover plate, the support, the touch sensor, the light emitting device and the pressure sensor. The touch cover plate is provided with a touch area, the support is matched with the touch cover plate to limit an assembly space, 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, the light-emitting device is arranged on one side, far away from the touch cover plate, of the touch sensor and is constructed to emit light to provide backlight for the touch cover plate, the pressure sensor is arranged between the touch cover plate and the support, the touch cover plate moves relative to the support to squeeze the pressure sensor when the touch area is stressed, and the pressure sensor is used for detecting the pressure of the touch area. According to the utility model discloses a key assembly has good touch display effect, and pressure sensor has the function of the pressure size that detects touch cover board and received, can solve the frequent problem that the mistake touched that appears that exists among the touch display device from this.

Description

Key assembly

Technical Field

The utility model belongs to the technical field of the electronic equipment technique and specifically relates to a button subassembly is related to.

Background

With the increasing requirements of consumers on the driving experience and the driving safety of vehicles, the touch control steering wheel key is gradually favored by consumers. In the related art, although the steering wheel key can realize the touch operation function, the function is single, for example, the function of preventing mistaken touch is not provided, and a driver needs to disperse energy to observe the touch effect in the driving process, so that the safety of driving operation is greatly reduced.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, the utility model provides a key assembly, key assembly has the mistake of preventing and touches, advantage that the display effect is good.

According to the utility model discloses button subassembly, include: the touch cover plate is provided with a touch area; a bracket cooperating with the touch cover to define an assembly space; the touch sensor is arranged in the assembling space and attached to the inner surface of the touch cover plate so as to detect the touch position of the touch cover plate; a light emitting device provided on a side of the touch sensor remote from the touch cover, the light emitting device configured to emit light to provide backlight to the touch cover; the pressure sensor is arranged between the touch cover plate and the support, the touch cover plate moves relative to the support to extrude the pressure sensor when the touch area is pressed, and the pressure sensor is used for detecting the pressure of the touch area.

According to the utility model discloses button subassembly, it not only has can show, multi-functional operation interface, and pressure sensor has the function that detects the pressure size that touch cover plate received moreover to whether select according to touch pressure's size and trigger relevant functional device, can solve the problem that frequently mistake that generally appears among the current touch display device touched well from this, promoted button subassembly's operation greatly and experienced.

According to the utility model discloses an embodiment, pressure sensor forms to the transparent, pressure sensor establishes touch sensor with between the light emitting device, or pressure sensor establishes the light emitting device with between the support.

According to some embodiments of the invention, the pressure sensor is formed as a non-transparent piece, the pressure sensor being provided between the light emitting device and the support.

According to some embodiments of the utility model, the support is close to one side of luminescent device is equipped with the holding tank on the surface, pressure sensor establishes in the holding tank.

The utility model discloses an in some embodiments, be equipped with the adhesive layer in the holding tank, pressure sensor passes through the adhesive layer is fixed in the holding tank.

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

In some embodiments of the present invention, the elastic support is in the form of a sheet, and the elastic support completely covers the pressure sensor.

According to some embodiments of the present invention, the touch cover plate includes a flat plate portion and a surrounding plate portion opposite to the flat plate portion extending toward a direction close to the bracket, the flat plate portion, the surrounding plate portion and the bracket define the assembly space, and the touch area is located in the flat plate portion.

In some embodiments of the present invention, the skirt portion is configured to be movable up and down relative to the bracket.

In some embodiments of the present invention, one of the touch cover and the support is provided with a sliding groove, and the other of the touch cover and the support is provided with a sliding protrusion, and the touch cover is opposite to the sliding protrusion and the sliding groove are in sliding fit when the support moves up and down.

According to some embodiments of the utility model, the button subassembly is electron device's display screen subassembly, on-vehicle steering wheel touch button.

Additional aspects and advantages of the invention 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 invention.

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 an embodiment of the present invention;

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

Reference numerals:

the key assembly 100 is provided with a key assembly,

a touch cover 1, a touch area 1a, a display area 1b, a flat plate portion 11, a surrounding plate portion 12, a slide protrusion 121,

the support 2, the receiving groove 21, the slide groove 22,

the assembly space 3, the touch sensor 4, the light emitting device 5, the pressure sensor 6, and the elastic support 7.

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 drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

A key assembly 100 according to an embodiment of the present invention is described below with reference to fig. 1 to 2.

As shown in fig. 1-2, a key assembly 100 according to an embodiment of the present invention includes: the touch cover plate 1, the support 2, the touch sensor 4, the light emitting device 5 and the pressure sensor 6.

The touch cover 1 may be provided with a touch area 1a and a display area 1b, the touch area 1a and the display area 1b may be separately provided, and the touch area 1a and the display area 1b may also be provided as a whole, that is, the display area 1b may have both display and touch sensing functions. Different function keys, such as a volume adjusting key, a song cutting key, a screen display mode switching key and the like, can be arranged in the display area 1b, and the positions corresponding to the different function keys can be selected and touched according to the required functions. Of course, the touch area 1a 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 bracket 2 may cooperate with the touch cover 1 to define a fitting space 3, and the touch sensor 4 may be disposed in the fitting space 3 and attached to an inner surface of the touch cover 1, so that the touch sensor 4 may detect a touch position of the touch cover 1, and different functional areas corresponding to different touch positions may be different, thereby triggering different functions. Alternatively, the touch sensor 4 may be an ITO film sheet that is transparent or hollow.

As shown in fig. 1, the light emitting device 5 may be disposed on a side of the touch sensor 4 away from the touch cover 1, and the light emitting device 5 is configured to emit light to provide backlight to the touch cover 1, so that a sufficient light source may be provided for the display area 1b, and the display effect of the display area 1b is improved. Optionally, the light emitting device 5 may be an individual light emitting element (LED lamp bead), the light emitting device 5 may also be a liquid crystal display (LED display or OLED display), and the like, and the light emitting device 5 may also be a character area of the light guide panel.

The pressure sensor 6 may be disposed between the touch cover 1 and the support 2, the touch cover 1 may move relative to the support 2 to press the pressure sensor 6 when the touch area 1a is pressed, and the pressure sensor 6 is used for detecting the pressure of the touch area 1 a. Specifically, when the user touches the touch area 1a on the touch cover 1, the pressure of the finger of the user drives the touch cover 1 to move toward the direction close to the bracket 2, so that the pressure sensor 6 is pressed, and the pressure sensor 6 deforms and detects the pressure applied to the touch area 1 a. When the pressure applied to the touch area 1a is greater than a set value, the pressure sensor 6 transmits a trigger signal to the corresponding functional device, and the functional device triggers the corresponding function. On the contrary, when the pressure applied to the touch area 1a is smaller than the set value, the pressure sensor 6 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 1 moves to the initial position toward the direction away from the holder 2 by the elastic force of the pressure sensor 6 itself, because of its elasticity.

Therefore, through the arrangement, the pressure sensor 6 has the function of detecting the pressure of the touch cover plate 1, and selects whether to trigger related functional devices according to the size of the touch pressure, so that the problem that the touch display device is prone to mistaken touch commonly existing in the existing touch display device can be well solved, and the operation experience of the key assembly 100 is greatly improved.

According to the utility model discloses button subassembly 100, it not only has can show, multi-functional operation interface, and pressure sensor 6 has the function of the pressure size that detects touch cover plate 1 and received moreover to whether select according to touch pressure's size and trigger relevant functional device, can solve the problem that frequently mistake that generally appears among the current touch display device touched well from this, promoted button subassembly 100's operation greatly and experienced.

In some embodiments of the utility model, pressure sensor 6 can form into the transparency, and pressure sensor 6 can be established between touch sensor 4 and emitting device 5, or pressure sensor 6 can be established between emitting device 5 and support 2, can promote pressure sensor 6's assembly flexibility from this, can select its mounted position according to the assembly demand of reality. It can be understood that the pressure sensor 6, whether disposed between the touch sensor 4 and the light emitting device 5 or between the light emitting device 5 and the support 2, can smoothly transmit the touch pressure to the pressure sensor 6 when the touch cover 1 moves relative to the support 2 because the upper and lower surfaces of the pressure sensor 6 are attached to the corresponding devices. Since the pressure sensor 6 is a transparent member, the transparent member can normally transmit light, and the backlight function of the light emitting device 5 is not affected even if the pressure sensor 6 is disposed between the touch sensor 4 and the light emitting device 5.

In other embodiments of the present invention, the pressure sensor 6 may be formed as a non-transparent member, and the pressure sensor 6 may be disposed between the light emitting device 5 and the bracket 2, so as to ensure the backlight effect of the light emitting device 5, and further, the touch cover plate 1 may have a good display effect.

As shown in fig. 1, according to some embodiments of the present invention, one side of the bracket 2 near the light emitting device 5 can be provided with the holding tank 21 on the surface, the pressure sensor 6 can be arranged in the holding tank 21, a part of the pressure sensor 6 extends out of the holding tank 21 and is attached to the corresponding device, and the holding tank 21 can play a role of fixing and limiting the pressure sensor 6, so as to improve the accuracy of the pressure detection of the pressure sensor 6. Alternatively, the contour of the receiving groove 21 can be adapted to the shape of the pressure sensor 6, so that the assembly security between the pressure sensor 6 and the bracket 2 can be further improved.

The utility model discloses an in some embodiments, can be equipped with the adhesive layer in the holding tank 21, pressure sensor 6 can be fixed in holding tank 21 through the adhesive layer, that is to say, can set up the one deck adhesive layer between pressure sensor 6 and the 21 diapire of holding tank, and the adhesive layer can bond pressure sensor 6 and support 2 together, can further promote the assembly fastness between pressure sensor 6 and the support 2 from this.

As shown in fig. 1-2, in some embodiments of the present invention, the key assembly 100 may further include an elastic supporting element 7, the elastic supporting element 7 may be disposed between the light emitting device 5 and the pressure sensor 6, that is, the elastic supporting element 7 may be disposed on one side of the pressure sensor 6 close to the touch cover plate 1, and the elastic supporting element 7 may make the stress on the pressure sensor 6 more uniform, so as to improve the accuracy of the pressure detection of the pressure sensor 6. Also, the elastic support 7 has elasticity, so that it is possible to provide the touch cover 1 with an elastic force to return to an original state.

Alternatively, the elastic supporting member 7 may be formed in a sheet shape, and the elastic supporting member 7 completely covers the pressure sensor 6, so that the pressure sensor 6 can be further stressed more uniformly, and the pressure detection accuracy of the pressure sensor 6 can be improved. Alternatively, the elastic support 7 may be a silicone pad.

As shown in fig. 1, according to some embodiments of the present invention, the touch cover 1 may include a flat plate portion 11 and a surrounding plate portion 12 extending from the flat plate portion 11 toward a direction close to the bracket 2, the flat plate portion 11, the surrounding plate portion 12 and the bracket 2 may cooperate with each other to define the assembly space 3, and the touch area 1a and the display area 1b are disposed on the flat plate portion 11.

Specifically, the flat plate portion 11 may be horizontally disposed, the touch region 1a and the display region 1b are disposed on the flat plate portion 11 and presented to a user, the surrounding plate portion 12 extends around the circumferential direction of the flat plate portion 11, one end of the surrounding plate portion 12 is connected to the flat plate portion 11, and the other end of the surrounding plate portion 12 extends toward a direction close to the bracket 2, so that, after the bracket 2 is completely matched with the surrounding plate portion 12, the bracket 2, the surrounding plate portion 12 and the flat plate portion 11 jointly enclose a relatively closed assembly space 3, and by the above arrangement, the structural design of the touch cover plate 1 may be simpler, and the closed assembly space 3 may prevent the light leakage of the light emitting device 5, and may improve the display effect of the touch cover plate 1. Alternatively, the flat plate portion 11 and the surrounding plate portion 12 may be formed as an integrally formed member.

In some embodiments of the present invention, the surrounding plate portion 12 may be configured to be movable up and down relative to the bracket 2, that is, the key assembly 100 may be slidably fitted to the bracket 2 through the surrounding plate portion 12, and thus, when the touch area 1a receives the touch pressure, the touch cover 1 may be movable up and down relative to the bracket 2, so that the pressure sensor 6 may accurately detect the touch pressure received by the touch area 1 a.

As shown in fig. 1, in some embodiments of the present invention, one of the touch cover 1 and the bracket 2 may be provided with a sliding groove 22, and the other of the touch cover 1 and the bracket 2 may be provided with a sliding protrusion 121, and the sliding protrusion 121 is in sliding fit with the sliding groove 22 when the touch cover 1 moves up and down relative to the bracket 2. That is, the sliding groove 22 may be provided on the touch cover 1, the sliding protrusion 121 may be provided on the holder 2, the sliding protrusion 121 may be provided on the touch cover 1, the sliding groove 22 may be provided on the holder 2, and the sliding protrusion 121 may be inserted into the sliding protrusion 121, so that the fitting between the touch cover 1 and the holder 2 may be smoother by the above arrangement.

In the specific example shown in fig. 1-2, two sliding grooves 22 are respectively disposed at two ends of a long side of the bracket 2, sliding protrusions 121 extending into the sliding grooves 22 are respectively disposed at positions corresponding to the enclosing plate portions 12, and the sliding protrusions 121 and the sliding grooves 22 are in sliding fit to guide the touch cover plate 1, so that the structural stability of the key assembly 100 can be improved.

It is understood that the touch display device may further include a positioning device (not shown), when the touch cover 1 is not subjected to the touch pressure, the touch cover 1 is in the initial position, and the positioning device is in the locked state to position the enclosing plate portion 12 and the bracket 2. When the touch cover 1 is subjected to touch pressure, the positioning device is in an open state, and the surrounding plate part 12 can slide relative to the bracket 2. When the touch pressure on the touch cover 1 disappears, the apron portion 12 moves to the initial position, at which time the positioning device is triggered and enters the locked state.

According to some embodiments of the present invention, key assembly 100 may be used in a display screen assembly or an onboard steering wheel of an electronic device. For example, the key assembly 100 may be a display screen assembly of a control terminal such as a mobile phone, a tablet computer, and a vehicle-mounted display screen, and the key assembly 100 may also be a key on a vehicle-mounted steering wheel. The key assembly 100 may be a vehicle-mounted key with a display function, and the key assembly 100 may also be used for a common automobile key. When the key assembly 100 is a key on the vehicle-mounted steering wheel, the key assembly 100 can have the functions of preventing mistaken touch and vibration feedback, and the use safety of a user in the driving process can be greatly improved.

It should be noted that the key assembly 100 of the present invention is not limited to be applied to the above-mentioned devices, and the setting can be selected according to the actual use requirement, and the present invention is not limited to this.

The key assembly 100 of the present invention will be described in detail with reference to fig. 1-2 as an embodiment, and the key assembly 100 is applied to the keypad keys of the vehicular steering wheel. It is to be understood that the following description is exemplary only, and is not intended as a specific limitation on the invention.

As shown in fig. 1-2, key assembly 100 includes: the touch cover plate 1, the support 2, the touch sensor 4, the light emitting device 5, the pressure sensor 6, and the elastic support 7.

The touch cover plate 1 comprises a flat plate portion 11 and a surrounding plate portion 12 extending towards the direction close to the bracket 2 relative to the flat plate portion 11, the flat plate portion 11 can be horizontally arranged, the touch area 1a and the display area 1b are arranged on the flat plate portion 11 and presented to a user, the surrounding plate portion 12 extends around the circumferential direction of the flat plate portion 11, one end of the surrounding plate portion 12 is connected with the flat plate portion 11, the other end of the surrounding plate portion 12 extends towards the direction close to the bracket 2, and therefore after the bracket 2 is matched with the surrounding plate portion 12, the bracket 2, the surrounding plate portion 12 and the flat plate portion 11 jointly surround a relatively closed assembly space 3. The touch area 1a and the display area 1b are integrated, that is, the display area 1b can have both display and touch sensing functions, different function areas are arranged in the display area 1b, and corresponding positions in the different function areas can be selected according to the required functions. The touch area 1a may also set a touch feedback mode, such as touch vibration, touch sound generation, etc., and the touch feedback mode may remind the user whether the corresponding key is touched.

As shown in fig. 1, the touch sensor 4 is disposed in the mounting space 3 and attached to the inner surface of the touch cover 1, and the touch sensor 4 is a transparent ITO film. The light emitting device 5 is an LED display screen and is provided on a side of the touch sensor 4 away from the touch cover 1, and the light emitting device 5 is configured to emit light to provide backlight to the touch cover 1, whereby a sufficient light source can be provided for the display area 1 b.

As shown in fig. 1, an accommodating groove 21 is formed on a surface of one side of the bracket 2 close to the light emitting device 5, the pressure sensor 6 is arranged in the accommodating groove 21, the pressure sensor 6 and the light emitting device 5 are provided with an elastic supporting member 7, and the elastic supporting member 7 is a silica gel pad. The elastic support 7 can make the stress of the pressure sensor 6 more uniform, so that the accuracy of pressure detection of the pressure sensor 6 can be improved.

As shown in fig. 1-2, two sliding grooves 22 are disposed at two ends of a long side of the bracket 2, sliding protrusions 121 extending into the sliding grooves 22 are disposed at positions corresponding to the enclosing plate 12, and the sliding protrusions 121 and the sliding grooves 22 are in sliding fit to guide the touch cover plate 1, so that the structural stability of the key assembly 100 can be improved.

Specifically, when the user touches the touch area 1a on the touch cover 1, the finger pressure of the user acts on the touch cover 1, at this time, the sliding protrusion 121 on the surrounding plate portion 12 is in sliding fit with the sliding groove 22 on the bracket 2, and the touch cover 1 moves toward the direction close to the bracket 2, so that the light emitting device 5 can press the pressure sensor 6 through the elastic support 7, and the pressure sensor 6 deforms itself and detects the pressure applied to the touch area 1 a. When the pressure applied to the touch area 1a is greater than a set value, the pressure sensor 6 transmits a trigger signal to the corresponding functional device, and the functional device triggers the corresponding function. On the contrary, when the pressure applied to the touch area 1a is smaller than the set value, the pressure sensor 6 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 1 moves to the initial position toward the direction away from the holder 2 by the elastic force thereof since the elastic support 7 and the pressure sensor 6 have elasticity by themselves.

In the description of the present invention, it is to be understood that the terms "center", "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, indicate the orientation or positional relationship indicated based on the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or component referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. 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 is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; 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 meaning 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 present invention. 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 present invention 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 invention, the scope of which is defined by the claims and their equivalents.

Claims (11)

1. A key assembly, comprising:

the touch cover plate is provided with a touch area;

a bracket cooperating with the touch cover to define an assembly space;

the touch sensor is arranged in the assembling space and attached to the inner surface of the touch cover plate so as to detect the touch position of the touch cover plate;

a light emitting device provided on a side of the touch sensor remote from the touch cover, the light emitting device configured to emit light to provide backlight to the touch cover; and

the pressure sensor is arranged between the touch cover plate and the support, the touch cover plate moves relative to the support to squeeze the pressure sensor when the touch area is stressed, and the pressure sensor is used for detecting the pressure of the touch area.

2. The key assembly according to claim 1, wherein the pressure sensor is formed as a transparent member, the pressure sensor being provided between the touch sensor and the light emitting device, or the pressure sensor being provided between the light emitting device and the holder.

3. The key assembly of claim 1, wherein the pressure sensor is formed as a non-transparent member, the pressure sensor being disposed between the light emitting device and the bracket.

4. The key assembly of claim 1, wherein a receiving groove is formed on a surface of the bracket adjacent to the light emitting device, and the pressure sensor is disposed in the receiving groove.

5. The key assembly of claim 4, wherein an adhesive layer is disposed in the receiving groove, and the pressure sensor is fixed in the receiving groove by the adhesive layer.

6. The key assembly of claim 4, further comprising: and the elastic supporting piece is arranged on one side of the pressure sensor close to the touch cover plate.

7. The key assembly of claim 6, wherein the elastic support is sheet-shaped, and the elastic support completely covers the pressure sensor.

8. The key assembly according to claim 1, wherein the touch cover includes a flat plate portion and a surrounding plate portion extending toward a direction close to the bracket relative to the flat plate portion, the surrounding plate portion and the bracket defining the fitting space, and the touch area being provided in the flat plate portion.

9. The key assembly of claim 8, wherein the bezel portion is configured to move up and down relative to the bracket.

10. The key assembly of claim 8, wherein one of the touch cover and the bracket is provided with a slide groove, and the other of the touch cover and the bracket is provided with a slide protrusion, the slide protrusion slidably engaging the slide groove when the surrounding plate portion moves up and down relative to the bracket.

11. The key assembly of any of claims 1-10, wherein the key assembly is used in a display screen assembly or an onboard steering wheel of an electronic device.

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