CN116149485A - Key and keyboard - Google Patents

Abstract

The application discloses a key and a keyboard, relates to the technical field of input equipment, and solves the problem that the use scene of the key in the related technology is limited. The key comprises a substrate, a movable piece, a capacitor assembly and a conductor, wherein the capacitor assembly is arranged on the substrate; the conductor is positioned between the movable piece and the capacitor component and can move from a first position to a second position along with the movable piece so as to trigger generation of a key signal. The key is used for converting the operation of a user into a key signal.

Description

Key and keyboard

Technical Field

The present disclosure relates to the field of input devices, and in particular, to a key and a keyboard.

Background

In the related art, keys on a keyboard are triggered by touch capacitors, the touch capacitors are required to be operated by conductors, and the use scene is limited.

Disclosure of Invention

The key and the keyboard provided by the embodiment of the application are not limited in use environment, are not easy to be interfered by the outside, and are good in stability.

In a first aspect, an embodiment of the present application provides a key, including a substrate, a movable member, a capacitor assembly, and a conductive body, where the capacitor assembly is disposed on the substrate; the conductor is positioned between the movable piece and the capacitor component and can move from a first position to a second position along with the movable piece so as to trigger generation of a key signal.

According to the key, the base plate is used for providing an installation foundation for other parts of the key, the movable piece and the base plate are movably connected, and when a user operates the key, the movable piece and the base plate move relatively. The capacitance component is arranged on the substrate, the capacitance value of the capacitance component can be changed to form capacitance change parameters, the capacitance change parameters can be used as the generation basis of key signals, and the response speed is higher in a mechanical triggering mode such as capacitance triggering relative to a film. On the basis, the key is also provided with a conductor, the conductor is positioned between the movable piece and the capacitor assembly, and the conductor can move along with the movable piece, namely, when a user presses the key, the conductor moves along with the movable piece and changes the relative position relative to the capacitor assembly. Because the conductor is capable of conducting electricity, an electric field can be formed between the conductor and the capacitor assembly, when the relative positions of the conductor and the capacitor assembly are changed, the electric field is correspondingly changed, and the capacitance value of the capacitor assembly is changed, so that the key generates a key signal, for example, when the conductor moves from a first position to a second position along with the movable piece, the key signal is triggered and generated. Compared with the prior art, the capacitor key needs to use external conductors such as a user finger and a capacitor pen as a triggering condition, and the key is provided with the conductor, so that the key can trigger and generate a key signal through the movement of the conductor relative to the capacitor assembly, the external conductor is not needed, the user can realize interaction with the key under the condition of wearing an insulating glove and the like, the conductor is arranged in the key, the electric field between the conductor and the capacitor assembly is stable in change and is not easy to be interfered by external environment, and the sensitivity of the key can be improved, and the user experience is improved.

In one possible implementation of the present application, the device further includes a support member, the movable member is hinged to the substrate through the support member, and the conductor is disposed on one of the movable member and the support member.

In one possible implementation manner of the present application, the movable member has a layered structure, and the electric conductor is disposed in an intermediate layer of the movable member; or the conductor is arranged on one side of the movable piece, which is close to the substrate; or the movable piece is provided with a light transmission part, and the conductor and the light transmission part are arranged in a dislocation manner; wherein the conductor and the movable piece are arranged in an insulating way.

In one possible implementation of the application, the electrical conductor is provided on the support or at least part of the support is formed as an electrical conductor.

In one possible implementation manner of the present application, the projection of the conductive body along the preset direction and the projection of the capacitor assembly along the preset direction at least partially overlap, and the preset direction is a pressing direction of the key.

In one possible implementation of the present application, the conductive body moves relative to the capacitive component along a preset direction, or the conductive body rotates relative to the capacitive component, and the rotation axes of the conductive body and the capacitive component are perpendicular to the preset direction.

In one possible implementation manner of the present application, the substrate includes a circuit layer, the capacitive component includes a first capacitive element and a second capacitive element, the first capacitive element and the second capacitive element are tiled on the circuit layer, and the first capacitive element and the second capacitive element are disposed at intervals.

In one possible implementation of the present application, when the conductive body moves from the first position to the second position, the capacitive component outputs a capacitance variation parameter with a variation of an electric field between the conductive body and the capacitive component to generate the key signal.

In one possible implementation manner of the present application, the paired structures formed by the pairs of capacitive components and the conductors are included, and the pairs of paired structures correspond to different positions of the movable member, so as to generate corresponding key signals when the different positions of the movable member are pressed.

In a second aspect, embodiments of the present application provide a keyboard comprising a plurality of keys of any of the first aspects.

The keyboard that this embodiment provided, owing to have the button of first aspect, consequently have the same technological effect, set up the electric conductor promptly, move in order to trigger and generate the button signal through the relative electric capacity subassembly of electric conductor, need not the outer conductor, the user can both realize the interaction with the button under wearing the condition such as insulating gloves, the electric field that the electric conductor set up between its and electric capacity subassembly is comparatively stable in the inside of button moreover, be difficult for receiving external environment interference, and then can promote the sensitivity of button, promote user experience.

Drawings

Fig. 1 is a schematic structural diagram of a keyboard according to an embodiment of the present application;

fig. 2 is a schematic structural diagram of a key according to an embodiment of the present application;

fig. 3 is a schematic diagram of an electric field when an electric conductor in a key provided in an embodiment of the present application is at a first position;

fig. 4 is a schematic diagram of an electric field when an electric conductor in a key provided in an embodiment of the present application is at a second position;

fig. 5 is a schematic diagram (example one) of a key according to an embodiment of the present application, in which an electrical conductor is disposed on a movable member;

fig. 6 is a schematic diagram (example two) of a key according to an embodiment of the present application, in which an electrical conductor is disposed on a movable member;

fig. 7 is a schematic diagram (example three) of a key according to an embodiment of the present application, in which an electrical conductor is disposed on a movable member;

fig. 8 is a schematic diagram of an electrical conductor disposed on a supporting member in a key according to an embodiment of the present application;

fig. 9 is a schematic structural diagram of a first capacitive element and a second capacitive element in a key according to an embodiment of the present application;

fig. 10 is a schematic diagram of an electric field when an external conductor is pressed to make the conductor be at a second position in the key according to the embodiment of the present application;

fig. 11 is a schematic structural diagram of an input system according to an embodiment of the present application.

Reference numerals:

1-a substrate; 2-key; 21-a substrate; 211-a support layer; 212-a circuit layer; 22-a movable member; 221-a light-transmitting portion; a 23-capacitance component; 231-a first capacitive element; 232-a second capacitive element; 24-electrical conductors; 25-a support; 251-first support; 252-second support.

Detailed Description

For the purposes, technical solutions and advantages of the embodiments of the present application to be more apparent, the specific technical solutions of the present application will be described in further detail below with reference to the accompanying drawings in the embodiments of the present application. The following examples are illustrative of the present application, but are not intended to limit the scope of the present application.

In the present embodiments, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the embodiments of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.

Furthermore, in the embodiments of the present application, the terms "upper," "lower," "left," and "right," etc., are defined with respect to the orientation in which the components in the drawings are schematically disposed, and it should be understood that these directional terms are relative terms, which are used for descriptive and clarity with respect to each other, and which may vary accordingly with respect to the orientation in which the components in the drawings are disposed.

In the embodiments herein, unless explicitly specified and limited otherwise, the term "connected" is to be construed broadly, and for example, "connected" may be either a fixed connection, a removable connection, or an integral body; can be directly connected or indirectly connected through an intermediate medium.

In the present embodiments, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

In the embodiments of the present application, words such as "exemplary" or "such as" are used to mean serving as examples, illustrations, or descriptions. Any embodiment or design described herein as "exemplary" or "for example" should not be construed as preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "such as" is intended to present related concepts in a concrete fashion.

The embodiment of the application provides a keyboard, which is an input device, and can convert the operation of a user into a signal and send the signal to processing equipment, so that the processing equipment receives the signal to execute corresponding functions, the keyboard can be applied to a computer, production equipment, toys and the like, and the keyboard can be independent of the processing equipment or integrated in the processing equipment, and the application is not limited in this regard.

Referring to fig. 1, a keyboard provided in this embodiment of the present application includes a base 1 and a key 2, where the base 1 provides an installation basis for the key 2, and the key 2 may be a mechanical key 2, a film key 2, a touch key 2, or any combination of two or more of them, and a user interacts with the key 2 to make the keyboard generate a corresponding signal.

The number of the keys 2 is plural, that is, at least two keys 2 are disposed on the keyboard, and a plurality of possible arrangements of the keys 2 on the substrate 1 are provided, for example, the keyboard is a standard computer keyboard, the substrate 1 is provided with a functional area, a letter key area, a control key area, a digital key area and other key 2 areas, and each key 2 area on the substrate 1 is provided with at least one key 2.

In addition, referring to fig. 2 and 3, the key 2 includes a substrate 21, a movable member 22, a capacitor assembly 23, and a conductive body 24, where the capacitor assembly 23 is disposed on the substrate 21; the electrical conductor 24 is located between the movable member 22 and the capacitive component 23 and is movable with the movable member 22 from a first position to a second position to trigger generation of a key signal.

According to the key 2 provided by the embodiment of the application, the base plate 21 is fixedly connected with the base body 1 of the keyboard and used for providing an installation foundation for other components of the key 2, the movable piece 22 and the base plate 21 are movably connected, when a user operates the key 2, the movable piece 22 and the base plate 21 move relatively, physical feedback can be given to the user, and the user can definitely operate the key 2.

The capacitance component 23 is disposed on the substrate 21, the capacitance value of the capacitance component 23 can be changed to form a capacitance change parameter, the capacitance change parameter can be used as a basis for generating a key signal, for example, when the capacitance value of the capacitance component 23 is changed from large to small, the key 2 generates a corresponding key signal; for another example, when the capacitance value of the capacitance component 23 is changed from small to large, the key 2 generates a corresponding key signal; for another example, when the capacitance value of the capacitor assembly 23 changes to a certain preset threshold value or falls within a certain preset value interval, the key 2 generates a corresponding key signal, and the response speed is faster in a mechanical triggering manner such as capacitive triggering and relative film.

On this basis, the key 2 is further provided with an electric conductor 24, the electric conductor 24 is located between the movable member 22 and the capacitor assembly 23, and the electric conductor 24 can move along with the movable member 22, that is, when the user presses the key 2, the electric conductor 24 moves along with the movable member 22 and changes the relative position with respect to the capacitor assembly 23.

Because the conductive body 24 is capable of conducting electricity and forms an electric field with the capacitive component 23, when the relative positions of the conductive body 24 and the capacitive component 23 change, the electric field correspondingly changes and causes the capacitance of the capacitive component 23 to change, so that the key 2 generates a key signal, for example, when the conductive body 24 moves from the first position to the second position along with the movable member 22, the key signal is triggered and generated.

Compared with the prior art, the capacitor key 2 needs to use external conductors such as a user finger and a capacitor pen as a triggering condition, and the key 2 of the capacitor key 2 is provided with the conductor 24, so that the capacitor assembly 23 moves relative to the conductor 24 to trigger and generate a key signal, the external conductor is not needed, the user can realize interaction with the key 2 under the condition of wearing an insulating glove and the like, the conductor 24 is arranged in the key 2, and the electric field between the conductor 24 and the capacitor assembly 23 is stable in change and is not easy to be interfered by external environment, so that the sensitivity of the key 2 can be improved, and the user experience is improved.

The first position is an initial position of the conductive body 24 relative to the capacitive component 23, that is, a position where the conductive body 24 is located when the key 2 is not pressed, and the second position is a position where the key 2 is pressed by a user and triggers to generate a key signal, and the second position is any position different from the first position.

It should be noted that, in one possible embodiment of the present application, when the conductive body 24 moves from the first position to the second position, the capacitive component 23 outputs a capacitance variation parameter according to the electric field variation between the conductive body 24 and the capacitive component 23 to generate the key signal.

Wherein, an electric field is formed between the conductor 24 and the capacitor assembly 23, and when the conductor 24 approaches or departs from the capacitor assembly 23, the electric field between the conductor 24 and the capacitor assembly changes, so that the capacitor assembly 23 outputs a capacitance change parameter as a key signal generation basis. Referring to fig. 3, when the conductive body 24 is in the first position, the conductive body 24 and the capacitive component 23 are far away from each other, and the electric field lines of the electric field formed by the conductive body 24 and the capacitive component 23 are less, and referring to fig. 4, when the conductive body 24 is in the second position, the conductive body 24 and the capacitive component 23 are near each other, that is, when the conductive body 24 approaches the capacitive component 23, the conductive body 24 attracts more electric field lines to increase the capacitance of the capacitive component 23, and correspondingly, when the conductive body 24 is far away from the capacitive component 23, the capacitance of the capacitive component 23 is decreased.

In addition, the form of the movable member 22 is not limited in this application, the movable member 22 may be a part that is pressed by a user, the movable member 22 may be square, circular, oval, etc., and the movable member 22 may move along a preset direction due to the pressing of the user, where the preset direction is a pressing direction of the key 2, specifically, when the user presses the movable member 22, the movable member 22 moves along the preset direction toward the substrate 21, and drives the conductive body 24 to move from the first position to the second position relative to the capacitor assembly 23.

In order to enable the electrical conductor 24 to recover to the first position after the key signal is triggered, optionally, the key 2 further includes an elastic member disposed between the movable member 22 and the substrate 21, the elastic member can generate elastic deformation along the opposite direction of the preset direction, when the user presses the movable member 22, the movable member 22 moves towards the substrate 21 along the preset direction, the elastic member generates elastic deformation along with the movement of the movable member 22, when the force acting on the movable member 22 by the user is removed, the elastic member generates elastic recovery, and drives the movable member 22 to move away from the substrate 21 along the opposite direction of the preset direction, and meanwhile, the movable member 22 drives the electrical conductor 24 to move from the second position to the first position relative to the capacitor assembly 23.

The form of the elastic member is not limited herein, for example, the elastic member may be a spring, a reed, or the like, where the spring is disposed along a preset direction, and two ends of the spring are fixedly connected to the movable member 22 and the base plate 21, respectively; for another example, the elastic member is elastic rubber, the elastic rubber may be disposed on the base plate 21, and a side of the elastic rubber away from the base plate 21 abuts against the movable member 22; for another example, the movable member 22 and the elastic member are integrally formed of elastic rubber.

In order to make the stress of the movable member 22 more uniform, and reduce the possibility of tilting when the movable member 22 is pressed, referring to fig. 2 and 5, in a possible embodiment of the present application, the movable member 22 further includes a support member 25, and the movable member 22 is hinged to the base plate 21 through the support member 25.

Among them, the supporting member 25 has various possible forms, referring to fig. 5 and 6, the supporting member 25 forms a scissors structure, and in particular, the scissors structure includes a first supporting member 251 and a second supporting member 252, a middle portion of the first supporting member 251 and a middle portion of the second supporting member 252 are hinged, a first end of the first supporting member 251 and a first end of the second supporting member 252 are both abutted in a sliding groove on the movable member 22, and a second end of the first supporting member 251 and a second end of the second supporting member 252 are both abutted in a sliding groove of the base plate 21, so that the first supporting member 251 and the second supporting member 252 can relatively rotate, and the first supporting member 251 and the second supporting member 252 can relatively rotate with respect to the movable member 22 and the base plate 21, respectively.

For another example, the supporting member 25 is a third supporting member disposed along the length direction of the movable member 22, the third supporting member is in a rod-shaped structure, the third supporting member includes a first rod body and a second rod body, the first rod body is hinged on the movable member 22, the hinge axes of the first rod body and the movable member 22 are parallel to the hinge axes of the first supporting member 251 and the second supporting member 252, the second rod body is two and is respectively disposed at two ends of the first rod body, the second rod body and the first rod body are vertically or approximately vertically disposed, and one end of the second rod body far away from the first rod body can be movably connected in the clamping groove on the substrate 21.

On this basis, the electric conductor 24 is provided on one of the movable member 22 and the supporting member 25, for example, the electric conductor 24 is provided on the movable member 22; as another example, the electrical conductor 24 is disposed on at least one of the first support 251 and the second support 252; for another example, the electrical conductor 24 is disposed on a third support.

Referring to fig. 5, 6 and 7, in one possible embodiment of the present application, the conductive body 24 is disposed on the movable member 22, and the conductive body 24 may be disposed at a plurality of locations on the movable member 22, for example, the conductive body 24 is disposed on a side of the movable member 22 near the substrate 21, such that the conductive body 24 is closer to the capacitive component 23 on the substrate 21 and more likely to interact.

Referring to fig. 6, in another possible embodiment of the present application, the movable member 22 is a layered structure, and the electric conductor 24 is disposed in the middle layer of the movable member 22; for example, the movable member 22 includes a pressing layer, a protective layer, and the like, and the conductive body 24 is disposed between the pressing layer and the protective layer, so that the periphery of the conductive body 24 is wrapped by the movable member 22, and the movable member 22 can provide protection for the conductive body 24 to reduce the possibility of scraping and damaging the conductive body 24.

In order to enable a user to use the keyboard in a weak light environment, a light transmitting portion 221 is disposed on the movable member 22, referring to fig. 7, in another possible embodiment of the present application, to facilitate the user to observe through the light transmitting portion 221, in order to prevent the conductive body 24 from affecting the light transmitting portion 221, the conductive body 24 may be made of a light transmitting conductor, or the conductive body 24 and the light transmitting portion 221 may be disposed in a staggered manner, for example, the light transmitting portion 221 is located in a middle position of the movable member 22, and the conductive body 24 is located in an edge position of the movable member 22.

The conductive body 24 and the movable member 22 are arranged in an insulating manner, so that when the external conductor touches the movable member 22, the external conductor is conducted with the conductive body 24, so that the electric field of the conductive body 24 is transformed, and the interaction between the conductive body 24 and the capacitor assembly 23 is affected.

Furthermore, the electrical conductor 24 may also be arranged on the support 25, referring to fig. 2, in one possible embodiment of the present application the electrical conductor 24 is arranged on the side of the support 25 facing the substrate 21; alternatively, the conductor 24 is provided on a side of the support 25 away from the substrate 21; referring to fig. 8, the support 25 may also be a case structure or a layered structure, and the electrical conductor 24 is disposed inside the support 25, so that the support 25 provides protection for the electrical conductor 24.

Alternatively, in another possible embodiment of the present application, at least part of the support 25 is formed as an electrical conductor 24, i.e. at least part of the support 25 is made of an electrically conductive material and this part is capable of interacting with the capacitive component 23, e.g. a third support made of a metallic material, which third support is used as electrical conductor 24.

It should be noted that the positional relationship between the conductive body 24 and the capacitive component 23 is not limited in the present application, alternatively, when the conductive body 24 moves from the first position to the second position relative to the capacitive component 23, the conductive body 24 gradually approaches the capacitive component 23; alternatively still, the conductive body 24 gradually moves away from the capacitive assembly 23 as the conductive body 24 moves from the first position to the second position relative to the capacitive assembly 23.

Referring to fig. 3 and 4, in one possible embodiment of the present application, the projection of the conductive body 24 along the preset direction and the projection of the capacitive component 23 along the preset direction at least partially overlap, so arranged that the conductive body 24 interacts with the capacitive component 23 to form an electric field in both the first position and the second position.

Accordingly, the present application describes a movement form of the conductive body 24, for example, the conductive body 24 may perform a linear movement relative to the capacitor assembly 23; for another example, the conductive body 24 may move in a curved manner relative to the capacitive element 23, only to ensure that the electric field between the conductive body 24 and the capacitive element 23 changes as the conductive body 24 moves between the first and second positions.

In addition, the moving direction of the conductive body 24 is not limited in the present application, in one possible embodiment of the present application, the conductive body 24 may be disposed on the movable member 22 and the conductive body 24 will move along with the movable member 22 along a preset direction, or, the conductive body 24 is connected to the movable member 22 through a transmission mechanism, the conductive body 24 moves along a direction perpendicular to the preset direction relative to the capacitive component 23, when the conductive body 24 moves to the first position relative to the capacitive component 23, the conductive body 24 and the capacitive component 23 are dislocated along the preset direction, and when the conductive body 24 moves to the second position relative to the capacitive component 23, the conductive body 24 and the capacitive component 23 are aligned, where the transmission mechanism may be a gear mechanism, a worm gear mechanism, a link mechanism, or the like, which is not limited in the present application.

Optionally, in another possible embodiment of the present application, the conductive body 24 moves in a curved manner with respect to the capacitive component 23, and the conductive body 24 is disposed on the support member 25, optionally, the first support member 251 is provided with a first conductive body 24, and the second support member 252 is provided with a second conductive body 24, so that the first conductive body 24 and the second conductive body 24 respectively move in a rotating manner with respect to the capacitive component 23.

Wherein the rotation axis of the electric conductor 24 relative to the capacitor assembly 23 is perpendicular to the preset direction, specifically, the relative rotation axis of the first electric conductor 24 and the capacitor assembly 23, i.e. the rotation axis of the first support 251 and the substrate 21; the relative rotation axes of the second conductive body 24 and the capacitor assembly 23, that is, the rotation axes of the second supporting member 252 and the substrate 21, taking the first conductive body 24 as an example, when the movable member 22 is pressed by a user, the movable member 22 moves towards the substrate 21 and drives the first supporting member 251 to rotate, and the first end of the first supporting member 251 rotates relative to the substrate 21, so that the first conductive body 24 is driven to rotate relative to the capacitor assembly 23, so that the first conductive body 24 approaches the capacitor assembly 23.

It should be noted that, there are various possible structures of the conductor 24 in the present application, for example, the conductor 24 has a block structure; for example, the conductor 24 may have a plate-like structure, and for example, the conductor 24 may have a spherical structure, or the conductor 24 may have a contour similar to that of the movable element 22 or the support element 25 to which the conductor is connected.

In addition, the connection manner of the electrical conductor 24 is not limited in the present application, for example, the electrical conductor 24 may be welded or adhesively fixed to the movable member 22 or the supporting member 25; for another example, the electric conductor 24 is fixed on the movable member 22 or the supporting member 25 by a snap-fit; for another example, the electrical conductor 24 is an electrically conductive coating applied to the surface of the moveable member 22 or the support member 25.

It should be noted that the form of the capacitor assembly 23 is not limited in this application, and the capacitor assembly 23 may be a common electronic device or a printed electronic device. Referring to fig. 2, in one possible embodiment of the present application, the substrate 21 includes a supporting layer 211 and a circuit layer 212, the supporting layer 211 is used to increase the structural strength of the circuit layer 212, the circuit layer 212 is a printed circuit board, and the capacitor assembly 23 is printed on the circuit layer 212.

Referring to fig. 2 and 9, the capacitor assembly 23 includes a first capacitor element 231 and a second capacitor element 232, where the first capacitor element 231 and the second capacitor element 232 are tiled on the circuit layer 212, and the first capacitor element 231 and the second capacitor element 232 are disposed at intervals, and there are multiple relative positions of the first capacitor element 231 and the second capacitor element 232, for example, the first capacitor element 231 and the second capacitor element 232 are disposed opposite to each other, and for example, the first capacitor element 231 is disposed around the second capacitor element 232, or the second capacitor element 232 is disposed around the first capacitor element 231; for another example, the first capacitive element 231 and the second capacitive element 232 are embedded in each other.

One of the first capacitive element 231 and the second capacitive element 232 is used as an emitter, the other of the first capacitive element 231 and the second capacitive element 232 is used as a receiving electrode, the first capacitive element 231 is used as an emitter, an electric field is formed between the first capacitive element 231 and the second capacitive element 232, the direction of electric field lines in the electric field faces the second capacitive element 232, when the electric conductor 24 moves from the first position to the second position relative to the capacitive component 23, the electric conductor 24 attracts more electric field lines to the receiving electrode, so that the capacitance value of the capacitive component 23 increases, and conversely, when the electric conductor 24 moves from the second position to the first position relative to the capacitive component 23, the capacitance value of the capacitive component 23 decreases.

Note that, since a small portion of the electric field lines are sucked away when the external conductor such as a human hand approaches the capacitive component 23, the capacitance of the capacitive component 23 is reduced, and therefore, referring to fig. 10, the attraction capability of the electric conductor 24 to the electric field lines needs to be greater than the attraction capability of the external conductor to the electric field lines, so that the capacitance of the capacitive component 23 is increased when the external conductor still approaches the capacitive component 23 when the external conductor presses the key 2.

In order to improve the functionality of the key 2, optionally, in a possible embodiment of the present application, a pairing structure formed by a plurality of pairs of capacitive components 23 and electrical conductors 24 is included, where the plurality of pairs of pairing structures correspond to different positions of the movable member 22, so as to generate corresponding key signals when the movable member 22 is pressed at different positions, so that the same key 2 can output different key signals to implement a plurality of functions.

Optionally, when the user presses different positions of the movable member 22, the movement amplitude of the corresponding position of the movable member 22 is larger, so that the movement amplitude of the conductor 24 at the corresponding position is larger, so as to distinguish the pairing structures at other positions and generate corresponding key signals; or, the plurality of conductors 24 corresponding to the movable member 22 move in the same amplitude, and when the external conductor is pressed to the movable member 22, the capacitance of the capacitor assembly 23 at the corresponding position of the movable member 22 is smaller, so that the capacitor assembly is different from the paired structures at other positions, and corresponding key signals are generated.

On the basis, the application also provides an input system, referring to fig. 11, the system comprises a key processor, a first processor and a second processor, the key processor generates corresponding key signals according to the capacitance change of the capacitance component 23, the first processor and the second processor are respectively and electrically connected to the key processor, the key signals can be respectively sent to the first processor and the second processor, and the first processor and the second processor can execute different operations according to the key signals, so that the efficiency of the input system is improved.

Taking a computer as an example, the key processor is a micro control unit (central processing unit, MCU) on the keyboard, the first processor is a south bridge chip (platform controller hub, PCH) on the main board, the second processor is an embedded controller (embeded controller, EC) on the main board, wherein the key processor and the first processor transmit signals through an HID-I25C channel, the key processor and the second processor transmit signals through a UART channel, and the second processor and the first processor transmit signals through an espi channel.

Specifically, the first processor is electrically connected with a central processing unit (central processing unit, CPU) of the computer, the second processor is electrically connected with a light driver on the keyboard through an SPI channel, when the key processor judges that the key 2 is pressed, the corresponding key signals are respectively sent to the first processor and the second processor, the first processor transmits the corresponding key signals to the CPU, and the second processor controls the corresponding light on the keyboard according to the key signals.

Therefore, button 2 and keyboard of this application owing to set up electric conductor 24, through the relative electric capacity subassembly 23 motion of electric conductor 24 in order to trigger and generate the button signal, need not the outer conductor, the user can both realize the interaction with button 2 under wearing insulating gloves etc. the condition, and electric field change between its and electric capacity subassembly 23 is comparatively stable in button 2's inside moreover electric conductor 24 setting, is difficult for receiving external environment interference, and then can promote button 2's sensitivity, promotes user experience.

The foregoing embodiment numbers of the present application are merely for describing, and do not represent advantages or disadvantages of the embodiments. The foregoing description is only of the preferred embodiments of the present application, and is not intended to limit the scope of the claims, and all equivalent structures or equivalent processes using the descriptions and drawings of the present application, or direct or indirect application in other related technical fields are included in the scope of the claims of the present application.

Claims (10)

1. A key, comprising:

a substrate;

a movable member;

the capacitor component is arranged on the substrate;

the conductor is positioned between the movable piece and the capacitor assembly and can move from a first position to a second position along with the movable piece so as to trigger generation of a key signal.

2. The key of claim 1, further comprising a support member through which the movable member is hinged to the base plate, the electrical conductor being provided on one of the movable member and the support member.

3. The key according to claim 2, wherein the movable member has a layered structure, and the conductor is disposed in an intermediate layer of the movable member; or alternatively, the first and second heat exchangers may be,

the conductor is arranged on one side of the movable piece, which is close to the substrate; or alternatively, the first and second heat exchangers may be,

the movable piece is provided with a light transmission part, and the conductor and the light transmission part are arranged in a staggered manner;

wherein the conductor and the movable member are arranged in an insulating manner.

4. The key according to claim 2, the electrical conductor being provided on the support, or at least part of the support being formed as the electrical conductor.

5. The key according to any one of claims 1 to 4, wherein a projection of the electrical conductor in a preset direction and a projection of the capacitive component in a preset direction at least partially overlap, the preset direction being a pressing direction of the key.

6. The key of claim 5, wherein the conductive body moves relative to the capacitive component along the preset direction, or the conductive body rotates relative to the capacitive component, and the axes of rotation of the conductive body and the capacitive component are perpendicular to the preset direction.

7. The key of any one of claims 1 to 4, the substrate comprising a circuit layer, the capacitive assembly comprising a first capacitive element and a second capacitive element, the first capacitive element and the second capacitive element tiled on the circuit layer, and the first capacitive element and the second capacitive element being spaced apart.

8. The key of any one of claims 1 to 4, the capacitive component outputs a capacitance change parameter as a function of an electric field between the electrical conductor and the capacitive component when the electrical conductor moves from the first position to the second position to generate the key signal.

9. The key of any one of claims 1 to 4, comprising a plurality of pairs of paired structures of capacitive components and electrical conductors, the pairs of paired structures corresponding to different positions of the movable member to generate respective key signals when the different positions of the movable member are pressed.

10. A keyboard comprising a plurality of keys as claimed in any one of claims 1 to 8.

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