CN215990743U - Key device and electronic equipment - Google Patents
Key device and electronic equipment Download PDFInfo
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- CN215990743U CN215990743U CN202122330250.XU CN202122330250U CN215990743U CN 215990743 U CN215990743 U CN 215990743U CN 202122330250 U CN202122330250 U CN 202122330250U CN 215990743 U CN215990743 U CN 215990743U
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Abstract
The application provides a key device and electronic equipment, relates to the technical field of signal transmission, and is used for solving the problems that the structure of the key device is not compact and the sensing function of a touch key is single; a Hall element is arranged on one side of the main control board facing the magnetic part, and when the magnetic part moves to the induction range of the Hall element, a second electric signal is generated; when the magnetic piece pops out the induction range of the Hall element to one side away from the main control board, a third electric signal is generated. The electronic equipment comprises the key device. The application is used for improving the structural compactness of the key device and increasing the induction function of the key device.
Description
Technical Field
The application relates to the technical field of signal transmission, in particular to a key device and electronic equipment.
Background
The key caps of mechanical keys of electronic equipment such as game pads are easy to wear and damage due to frequent use, and the number of the existing mechanical keys is difficult to satisfy the networking game operation in the future along with the continuous expansion of game skills.
In the related art, the gamepad comprises a base, and a mechanical key and a touch key which are arranged on the base, wherein the mechanical key mechanically touches a corresponding switch to open a corresponding function, and the touch key generates a corresponding signal through touch induction to open a corresponding function switch through the signal, wherein the position of the mechanical key is different from the position of the touch key arranged on the base, so that the shortage of the number of the mechanical keys is compensated through the touch key, and the gamepad can meet the key requirement of multiple game functions.
However, the gamepad has poor structure compactness and single sensing function of the touch keys.
SUMMERY OF THE UTILITY MODEL
In view of the foregoing problems, embodiments of the present application provide a key device and an electronic apparatus, which are used to implement opening or closing of each function in the electronic apparatus, and can improve the structural compactness of the key device, and at the same time, increase the sensing function of the key device, thereby implementing the function diversification of the key device.
In order to achieve the above object, the embodiments of the present application provide the following technical solutions:
in a first aspect, an embodiment of the present application provides a key device, which includes: the key assembly comprises a base, a key assembly and a main control board arranged on the base; the key assembly is connected with the base and can be pressed towards the main control board or bounced away from the main control board; a capacitive sensing piece is arranged on one side, facing the main control board, of the key assembly, the capacitive sensing piece is electrically conducted with the main control board, a touch sensing area is arranged on one side, facing away from the capacitive sensing piece, of the key assembly, and the position of the touch sensing area corresponds to that of the capacitive sensing piece, so that a first electric signal is generated between the capacitive sensing piece and the touch sensing area when the touch sensing area is touched by a human limb; a magnetic part is further arranged on one side, facing the main control board, of the key assembly, a Hall element is arranged on one side, facing the magnetic part, of the main control board, and when the magnetic part moves to the sensing range of the Hall element along with the key assembly, a second electric signal is generated; and when the magnetic part pops up the induction range of the Hall element along with the key assembly to one side back to the main control board, a third signal is generated.
The key device comprises a key cap, the touch sensing area is arranged on one side of the key cap, which is far away from the main control board, and the capacitance sensing element is arranged on one side of the key cap, which faces the main control board.
According to the key device, the touch sensing area is provided with the touch sensing layer, and the sensing capacitor is generated between the touch sensing layer and the capacitor sensing piece.
In the above key device, the touch sensing layer is a plastic conductive layer.
In the key device, the key assembly further includes a conductive connection unit, and the key cap is connected to the base through the conductive connection unit, so that the key cap can move towards the main control board under the action of an external force; or the conductive connecting unit drives the keycap to move in the direction back to the main control board through the elasticity of the conductive connecting unit; the capacitance induction piece is electrically conducted with the main control board through the conductive connection unit.
As above, the conductive connection unit includes a rotation shaft and an elastic conductive member, the key cap is pivoted to the base through the rotation shaft, the elastic conductive member is sleeved on the rotation shaft, one end of the elastic conductive member is electrically connected to the capacitance sensing member, and the other end of the elastic conductive member is electrically connected to the main control board, so that the first electrical signal detected by the capacitance sensing member is transmitted to the main control board through the elastic conductive member.
In the key device, the elastic conductive member is a torsion spring.
The key assembly further comprises a support, the support is arranged on one side of the key cap facing the main control board and fixedly connected with the key cap through a threaded fastener, and the capacitance sensing element is arranged between the key cap and the support; the magnetic part is arranged on one side of the support, which faces the main control board.
According to the key device, the structural shape of one side of the support facing the keycap is matched with the structural shape of the capacitance sensing piece.
In the key device, the magnetic member is a magnet.
Compared with the related art, the key device provided by the embodiment of the application has at least the following advantages:
in the key device provided by the embodiment of the application, the capacitive sensing element is arranged on one side of the key assembly, which faces the main control board, and is electrically conducted with the main control board, the touch sensing area is arranged on one side of the key assembly, which is away from the capacitive sensing element, and the position of the touch sensing area corresponds to that of the capacitive sensing element, so that a sensing capacitor can be formed between the touch sensing area and the capacitive sensing element, when the touch sensing area is touched by a human limb, the sensing capacitor is increased to generate a first electric signal, and the main control board starts a corresponding switch according to the first electric signal to realize a corresponding key function; in addition, a magnetic part is arranged on one side, facing the main control board, of the key assembly, a Hall element is arranged on one side, facing the magnetic part, of the main control board, when the key assembly is pressed by external force to move towards one side of the main control board, so that the magnetic part moves to be within the sensing range of the Hall element, Hall sensing is generated, and a second electric signal is generated; in addition, the structure compactness of the key device is improved.
In a second aspect, an embodiment of the present application provides an electronic device, which includes: the key device comprises an equipment body and the key device provided by the first aspect, wherein the key device is arranged on the equipment body.
The electronic equipment provided by the embodiment of the application has the same beneficial effects as the key device, and is not repeated herein.
In addition to the technical problems solved by the embodiments of the present application, the technical features constituting the technical solutions, and the advantages brought by the technical features of the technical solutions described above, other technical problems that can be solved by the key device and the electronic device provided by the embodiments of the present application, other technical features included in the technical solutions, and advantages brought by the technical features will be further described in detail in the detailed description.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic structural diagram of a key device according to an embodiment of the present application;
fig. 2 is an exploded schematic view of a key device according to an embodiment of the present disclosure;
fig. 3 is a schematic partial structure diagram of a key device according to an embodiment of the present application.
Reference numerals:
100-a key device;
110-a base;
120-a key assembly;
121-capacitive sensing element;
122-a keycap;
1221-touch sensitive area;
123-a magnetic member;
124-conductive connection unit;
1241-rotating shaft;
1242-conductive connection;
125-a scaffold;
126-a threaded fastener;
130-a main control board;
131-hall element.
Detailed Description
In the related art, the key device is not compact in structure, and the main reason why the touch key has a single sensing function is that: the key device comprises a support, a mechanical key and a touch key, wherein the mechanical key and the touch key are installed on the support body, the mechanical key comprises a keycap, one side of the keycap is pivoted with the support, one side of the keycap, which faces the main control board, is provided with an elastic pressing part, and when a finger presses the keycap to move towards the main control board, the elastic pressing part presses a switch, corresponding to the keycap, on the main control board so as to open a corresponding function; when the keycap is loosened, the elastic pressing part rebounds to one side back to the main control board, and the elastic pressing part loosens the switch on the main control board to close the corresponding function; the touch button is installed on the support with the position department that the position of mechanical button misplaced mutually, for example, the touch button is installed on the handle of support, in addition, be equipped with touch-sensitive area on the touch button, the touch button is equipped with the electric capacity response piece towards one side of main control board, the electric capacity response piece passes through the induction line and is connected with the main control board electricity, produce induction capacitance between the regional electric capacity response piece of touch-sensitive, when the touch-sensitive area receives people's limbs touch, induction capacitance increases, produce the signal of telecommunication, the signal of telecommunication passes through induction line transmission to the main control board, the main control board opens corresponding switch according to this signal of telecommunication control.
However, the mechanical key and the touch key of the key device in the related art are mounted at different positions of the bracket, which results in a non-compact structure of the key device, and in addition, the touch key can only realize a capacitive sensing function, which results in a single sensing function of the touch key.
In order to solve the above problems, an embodiment of the present application provides an improved technical solution, in an improved key device, a capacitive sensing element is disposed on one side of a key assembly facing a main control board, the capacitive sensing element is electrically connected to the main control board, a touch sensing area is disposed on one side of the key assembly facing away from the capacitive sensing element, and a position of the touch sensing area corresponds to a position of the capacitive sensing element, so that a sensing capacitor is formed between the touch sensing area and the capacitive sensing element, when the touch sensing area is touched by a human limb, the sensing capacitor is increased to generate a first electrical signal, and the main control board starts a corresponding switch according to the first electrical signal to implement a corresponding key function; in addition, a magnetic part is arranged on one side, facing the main control board, of the key assembly, a Hall element is arranged on one side, facing the magnetic part, of the main control board, when the key assembly is pressed by external force to move towards one side of the main control board, so that the magnetic part moves to be within the sensing range of the Hall element, a second electric signal is generated, the main control board starts a switch corresponding to the key assembly according to the second electric signal, when the key assembly bounces towards one side, away from the main control board, the magnetic part moves out of the sensing range of the Hall element, a third electric signal is generated, and the main control board starts the switch corresponding to the main control board according to the third electric signal, so that the key assembly provided by the embodiment of the application can realize capacitance sensing and can also realize Hall sensing, the sensing function of the key assembly is increased, and the function diversification of the key assembly is realized; in addition, the structure compactness of the key device is improved.
In order to make the aforementioned objects, features and advantages of the embodiments of the present application more comprehensible, embodiments of the present application are described in detail below with reference to the accompanying drawings. It is to be understood that the described embodiments are merely a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Example one
Fig. 1 is a schematic structural diagram of a key device according to an embodiment of the present application; fig. 2 is an exploded schematic view of a key device according to an embodiment of the present disclosure; fig. 3 is a schematic partial structure diagram of a key device according to an embodiment of the present application.
Referring to fig. 1 to 3, a key device 100 according to an embodiment of the present application includes: base 110, key assembly 120, and main control board 130 mounted on base 110.
The main control board 130 is installed at one side of the base 110, and the key assembly 120 is installed at one side of the base 110 away from the main control board 130, wherein a plurality of function switches are arranged on the main control board 130; the key assembly 120 is elastically connected to the base 110, and the key assembly 120 can be pressed toward the main control board 130 or bounced away from the main control board 130, so as to turn on or off each function switch on the main control board 130.
Specifically, one side of key assembly 120 towards main control board 130 is equipped with capacitance sensing piece 121, capacitance sensing piece 121 and main control board 130 electricity conductibility, one side of key assembly 120 deviating from capacitance sensing piece 121 is equipped with touch-sensitive area 1221, wherein, touch-sensitive area 1221's position is corresponding with capacitance sensing piece 121's position, thus, can produce a sensing capacitance between touch-sensitive area 1221 and the capacitance sensing piece 121, when touch-sensitive area 1221 receives the limbs touch of human body, the sensing capacitance increase between touch-sensitive area 1221 and the capacitance sensing piece 121, thereby produce first signal of telecommunication, first signal of telecommunication transmits to main control board 130, main control board 130 opens rather than corresponding switch according to first signal of telecommunication, thereby realize corresponding key function.
In addition, a magnetic part 123 is further disposed on one side of the key assembly 120 facing the main control board 130, and a hall element 131 is disposed on one side of the main control board 130 facing the magnetic part 123, it can be understood that the hall element 131 is the magnetic part 123, and the magnetic part 123 is driven by the key assembly 120 to move towards the hall element 131 by pressing the key assembly 120.
The magnetic member 123 is used for generating a magnetic field, wherein the magnetic member 123 may include, but is not limited to, a magnetic member 123 made of metal material such as iron, iron alloy, cobalt, steel, cast iron, and the like.
It is understood that the hall element 131 is a magnetic sensor based on the hall effect, and can detect a magnetic field and its change.
In a specific implementation, when the magnetic member 123 moves to the sensing range of the hall element 131, the magnetic member 123 and the hall element 131 generate sensing, so as to generate a second electrical signal, and the main control board 130 opens the corresponding switch according to the second electrical signal, so as to implement the key function corresponding to the second electrical signal.
When the key assembly 120 is released, the key assembly 120 is bounced to a side away from the main control board 130 by its own elastic force, so that the magnetic member 123 moves out of the sensing range of the hall element 131 along with the key assembly 120, thereby generating a third electrical signal to close the switch opened by the second electrical signal, thereby implementing the closing function of the corresponding switch.
Therefore, the key device 100 provided by the embodiment of the application can realize the capacitance sensing and the hall sensing, and increases the sensing function of the key device 100, thereby realizing the function diversification of the key device 100; in addition, the structure compactness of the key device 100 is improved, and the assembly processes of the key device 100 are reduced, so that the assembly cost is reduced.
With continued reference to fig. 1 to 3, the key assembly 120 includes a key cap 122, the touch sensing area 1221 is disposed on a side of the key cap 122 away from the main control board 130, it can be understood that the touch sensing area 1221 is disposed on an outer surface of the key cap 122, so as to facilitate the limb touching of a person, the capacitance sensing element 121 is disposed on a side of the key cap 122 facing the main control board 130, that is, the capacitance sensing element 121 is disposed on a side of an inner surface of the key cap 122, wherein a sensing capacitance is generated between the touch sensing area 1221 and the capacitance sensing element 121, when the touch sensing area 1221 is touched by the limb of the person, a sensing capacitance between the touch sensing area 1221 and the capacitance sensing element 121 is increased, thereby generating a first electrical signal.
It is understood that the capacitance sensor 121 may be made of steel, iron alloy, etc. For example, the capacitance sensor 121 is a sensor steel sheet.
In some embodiments, a touch sensing layer is disposed on the touch sensing area 1221, and a sensing capacitance is generated between the touch sensing layer and the capacitance sensor 121.
Touch-sensitive layer can be the rete that flexible materials such as plastic made, and add electrically conductive particle such as carbon dust in this rete, like this, flexible materials such as plastic are equivalent to the medium between electrically conductive particle such as carbon dust and electric capacity response piece 121, through the dielectric constant of flexible materials such as plastic increase air, thereby increase the storage capacity of the induction capacitance to the electric charge that produces between touch-sensitive layer and the electric capacity response piece 121, thereby improve the reliability that produces first signal of telecommunication through electric capacity response, and then improve key device 100's functional reliability.
Conductive particles such as carbon powder are added into flexible materials such as plastic, so that the touch sensing layer has certain conductivity, and the dielectric constant of the touch sensing layer is larger than 1.
It can be understood that the touch sensing layer can be formed as a single piece with the key cap 122 by way of integral molding, and doped particles are provided in the touch sensing area 1221 corresponding to the surface of the key cap 122, where the doping can be conductive particles such as carbon powder.
Or, the touch sensing layer may be formed separately from the key cap 122, and then the touch sensing layer is disposed on one side of the key cap 122 away from the main control board 130 by a process such as bonding.
The key assembly 120 further includes a conductive connection unit 124, and the key cap 122 is elastically connected to the base 110 through the conductive connection unit 124, so that the key cap 122 can move towards the main control board 130 under the action of an external force; alternatively, the conductive connection unit 124 drives the key cap 122 to move away from the main control board 130 by its own elastic force.
It is understood that the conductive connection unit 124 has elasticity such that the key cap 122 is elastically connected to the base 110 through the conductive connection unit 124, so that the key cap 122 can reciprocate in an area close to or away from the main control board 130, thereby achieving the pressing and bouncing of the key device 100; in addition, the conductive connecting part 1242 has conductivity, so that the capacitance sensing part 121 is electrically conducted with the main control board 130 through the conductive connecting unit 124, so as to transmit the first electrical signal detected by the capacitance sensing part 121 to the main control board 130 through the conductive connecting unit 124.
With continued reference to fig. 2, as an alternative embodiment, the conductive connecting member 1242 includes a rotating shaft 1241 and a resilient conductive member, so that the key cap 122 can be pivotally connected to the base 110 through the rotating shaft 1241, that is, one side of the key cap 122 can rotate relative to the base 110, so that the key cap 122 can move toward or away from the main control board 130; the elastic conductive member is arranged on the rotating shaft 1241, so that when the pressed keycap 122 is released, the elastic conductive member can drive the keycap 122 to reset to the side away from the main control board 130 through the self elastic force; in addition, one end of the elastic conductive member is electrically connected to the capacitance sensing member 121, and the other end of the elastic conductive member is electrically connected to the main control board 130, so as to transmit the first electrical signal detected by the capacitance sensing member 121 to the main control board 130 through the elastic conductive member.
The elastic conductive member may be a torsion spring, the torsion spring is sleeved on the rotating shaft 1241, one support leg of the torsion spring is electrically connected to the capacitance sensing member 121, and the other support leg of the torsion spring is electrically connected to the main control board 130.
The key assembly 120 further includes a support 125, the support 125 is disposed on a side of the key cap 122 facing the main control board 130, and is fixedly connected to the key cap 122 through a threaded fastener 126, and the capacitance sensor 121 is disposed between the key cap 122 and the support 125 to fix and limit the capacitance sensor 121.
Wherein, the shape of electric capacity response piece 121 can with the structural shape phase-match of the surface of support 125 towards one side of key cap 122, increase electric capacity response piece 121 and the laminating degree on support 125 surface, when reducing installation space, can improve the fixed reliability to electric capacity response piece 121.
The magnetic member 123 is disposed on one side of the support 125 facing the main control board 130, and the hall element 131 on the main control board 130 corresponds to the magnetic member 123, so that when the magnetic member 123 moves to one side of the main control board 130 along with the key assembly 120, the sensing reliability of the hall element 131 to the magnetic member 123 can be improved, mutual misalignment between the magnetic member 123 and the hall element 131 is avoided, and when the magnetic member 123 moves to one side close to the main control board 130, the hall element 131 cannot sense the magnetic member 123.
Example two
The electronic equipment provided by the embodiment of the application comprises an equipment body and the key device provided by the first embodiment, wherein the key device is arranged on the equipment body.
The electronic device includes, but is not limited to, a game pad and the like.
In addition, the structure and the operation principle of the key device have been described in detail in the above embodiments, and are not described herein again.
The electronic equipment provided by the embodiment of the application comprises an equipment body and the key device in the first embodiment, wherein the key device is installed on the equipment body, a capacitive sensing piece is arranged on one side, facing the main control board, of the key assembly, the capacitive sensing piece is electrically conducted with the main control board, a touch sensing area is arranged on one side, away from the capacitive sensing piece, of the key assembly, and the position of the touch sensing area corresponds to that of the capacitive sensing piece, so that a sensing capacitor can be formed between the touch sensing area and the capacitive sensing piece, when the touch sensing area is touched by limbs of a person, the sensing capacitor is increased to generate a first electric signal, and the main control board starts a corresponding switch according to the first electric signal to realize a corresponding key function; in addition, a magnetic part is arranged on one side, facing the main control board, of the key assembly, a Hall element is arranged on one side, facing the magnetic part, of the main control board, when the key assembly is pressed by external force to move towards one side of the main control board, so that the magnetic part moves to be within the sensing range of the Hall element, Hall sensing is generated, and a second electric signal is generated; in addition, the structure compactness of the key device is improved.
The embodiments or implementation modes in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other.
In the description herein, references to the description of the terms "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 application. In this specification, schematic representations of the above terms 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.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solutions of the present application, and not for limiting the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.
Claims (10)
1. A key device, comprising: the key assembly comprises a base, a key assembly and a main control board arranged on the base;
the key assembly is connected with the base and can be pressed towards the main control board or bounced away from the main control board;
a capacitive sensing piece is arranged on one side, facing the main control board, of the key assembly, the capacitive sensing piece is electrically conducted with the main control board, a touch sensing area is arranged on one side, facing away from the capacitive sensing piece, of the key assembly, and the position of the touch sensing area corresponds to that of the capacitive sensing piece, so that a first electric signal is generated between the capacitive sensing piece and the touch sensing area when the touch sensing area is touched by a human limb;
a magnetic part is further arranged on one side, facing the main control board, of the key assembly, a Hall element is arranged on one side, facing the magnetic part, of the main control board, and when the magnetic part moves to the sensing range of the Hall element along with the key assembly, a second electric signal is generated; and when the magnetic part pops up the induction range of the Hall element along with the key assembly to one side back to the main control board, a third electric signal is generated.
2. The key device of claim 1, wherein the key assembly comprises a key cap, the touch sensitive area is disposed on a side of the key cap facing away from the main control board, and the capacitance sensor is disposed on a side of the key cap facing toward the main control board.
3. The key device of claim 2, wherein a touch sensing layer is disposed on the touch sensing area, and a sensing capacitor is formed between the touch sensing layer and the capacitance sensor.
4. The key device of claim 3, wherein the touch sensitive layer is a plastic conductive layer.
5. The key device of claim 2, wherein the key assembly further comprises an electrically conductive connecting unit, and the key cap is connected to the base through the electrically conductive connecting unit, so that the key cap can move toward the main control board under the action of an external force; or the conductive connecting unit drives the keycap to move in the direction back to the main control board through the elasticity of the conductive connecting unit;
the capacitance induction piece is electrically conducted with the main control board through the conductive connection unit.
6. The key device of claim 5, wherein the conductive connection unit comprises a rotation shaft and an elastic conductive member, the key cap is pivotally connected to the base through the rotation shaft, the elastic conductive member is sleeved on the rotation shaft, one end of the elastic conductive member is electrically connected to the capacitance sensor, and the other end of the elastic conductive member is electrically connected to the main control board, so as to transmit the first electrical signal detected by the capacitance sensor to the main control board through the elastic conductive member.
7. The key device of claim 6, wherein the elastic conductive member is a torsion spring.
8. The key device according to any one of claims 2 to 7, wherein the key assembly further comprises a support, the support is disposed on a side of the key cap facing the main control board and is fixedly connected to the key cap by a threaded fastener, and the capacitive sensing element is disposed between the key cap and the support; the magnetic part is arranged on one side of the support, which faces the main control board.
9. The key device of claim 8, wherein a side of the support facing the keycap has a configuration that matches a configuration of the capacitive sensing element.
10. An electronic device, comprising: a device body and a key device as claimed in any one of claims 1 to 9, said key device being mounted on said device body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122330250.XU CN215990743U (en) | 2021-09-26 | 2021-09-26 | Key device and electronic equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122330250.XU CN215990743U (en) | 2021-09-26 | 2021-09-26 | Key device and electronic equipment |
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| CN215990743U true CN215990743U (en) | 2022-03-08 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115229851A (en) * | 2022-07-21 | 2022-10-25 | 深圳素士科技股份有限公司 | Electric razor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115229851A (en) * | 2022-07-21 | 2022-10-25 | 深圳素士科技股份有限公司 | Electric razor |
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