CN115097954A

CN115097954A - Input signal generating device and electronic equipment

Info

Publication number: CN115097954A
Application number: CN202210633727.8A
Authority: CN
Inventors: 童语; 童宗伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-06-07
Filing date: 2022-06-07
Publication date: 2022-09-23

Abstract

The application provides an input signal generating device, which comprises a fixed base, a first moving unit, a second moving unit and a second signal generating unit, wherein the fixed base is internally provided with the first moving unit, and the upper end of the fixed base is correspondingly provided with the second moving unit; the first mobile unit is provided with an electrode plate, an MCU unit and a first magnetic attraction unit; the second mobile unit is provided with a trigger key and a second magnetic attraction unit; the trigger key corresponds to the electrode plate and forms a signal trigger unit; the electrode plate is connected with the MCU unit to form an input signal trigger circuit from the MCU unit to the electrode plate to the ground. A coupling variable capacitor is formed by the trigger key and the electrode plate which are separated from each other, the detected variable capacitance value is converted into an input signal, and the first mobile unit and the second mobile unit can synchronously move through the magnetic part; on one hand, the trigger key is stable and reliable without any wire connection, and on the other hand, in the device with displacement input (such as a mouse), the second mobile unit is not scratched or abraded due to friction with the desktop.

Description

Input signal generating device and electronic equipment

Technical Field

The present disclosure relates to the field of input device technologies, and in particular, to an input signal generating apparatus and an electronic device.

Background

The input device is one of the main devices for information exchange between a user and a computer system, and includes a keyboard, a mouse, a camera, a scanner, a light pen, a handwriting input board, a joystick, a voice input device, and the like. An input device (InputDevice) is a device that a person or the outside interacts with a computer and is used to input raw data and a program that processes these numbers into the computer. The computer can receive various data, such as numerical data or non-numerical data, and the data can be input into the computer through different types of input devices, stored, processed and output.

The existing input devices are generally integrated devices, such as a keyboard, a mouse and the like, and can be directly input after being connected to a terminal device, so that error input is easily caused, and a microswitch is generally used for a key, however, mechanical parts of the microswitch are easily damaged after being used for a long time, and the microswitch is easily damaged by environmental influences, such as the environment with much moisture or oil smoke, and the problem of failure is easily caused; in addition, the contact of the electronic device with the contact generates an ignition phenomenon when contacting, and the ignition phenomenon cannot be directly used in an explosion-proof environment.

Disclosure of Invention

In view of the above, the present application is proposed to provide an input signal generating apparatus and an electronic device that overcome or at least partially solve the problems.

The embodiment of the invention discloses an input signal generating device, which comprises:

the fixed base is internally provided with a first moving unit, and the upper end of the fixed base is correspondingly provided with a second moving unit;

the first mobile unit is provided with an electrode plate, an MCU unit and a first magnetic suction unit;

the second mobile unit is provided with a trigger key and a second magnetic attraction unit which corresponds to and attracts the first magnetic attraction unit, wherein the trigger key at least extends to the upper surface of the second function unit;

the trigger key corresponds to the electrode plate and forms a signal trigger unit;

the electrode plate is connected with the MCU unit to form an input signal trigger circuit from the MCU unit to the electrode plate to the ground.

The first mobile unit is connected with the side end in the fixed base through at least three first conductors capable of generating horizontal deformation;

the bottom of the first mobile unit is also provided with a mobile sensor for sensing the displacement of the first mobile unit to the fixed base, and the mobile sensor is electrically connected to the MCU;

and the three first conductors are respectively used for connecting the power supply, the data and the ground wire of the first mobile unit.

Further, the first conductor is a return spring;

the center of the coil spring is connected to the first moving unit, and the outer circumference of the coil spring is connected to the side of the stationary base.

Further, the trigger key comprises a key and an elastic component;

the key is arranged on the upper part of the elastic part and at least partially protrudes out of the upper surface of the second mobile unit; the electrode plate is at least divided into two sections, wherein one section is grounded, and the other section is electrically connected with the MCU;

the elastic component and the electrode plate correspond to form a first variable capacitor.

Furthermore, the elastic component is a spring or a shrapnel.

Furthermore, a smooth pad or a plurality of universal wheels or a plurality of first rolling balls are arranged at the position where the upper surface of the first moving unit is contacted with the fixed base, and/or,

the lower surface of the second moving unit is provided with a smooth pad or a plurality of universal wheels or a plurality of first balls,

and/or the presence of a gas in the gas,

and a smooth pad or a plurality of universal wheels or a plurality of second balls are arranged at the contact position of the lower surface of the first moving unit and the fixed base.

The touch screen further comprises a first sensing electrode, wherein the first sensing electrode is arranged between the trigger key and the electrode plate and has the same segment with the electrode plate;

the first induction electrode forms a first variable capacitor relative to the trigger key, the first induction electrode and the electrode slice form at least two first coupling capacitors, one first coupling capacitor is grounded, and the other first coupling capacitor is connected with a GIPO interface of the MCU unit.

Further, the triggering key can also be a touch bar;

the touch strip is connected with the first sensing electrode and forms a second variable capacitor; the two first coupling capacitors are respectively connected to different GIPO interfaces of the MCU unit.

the first mobile unit is provided with an MCU unit and at least one Hall sensor;

the second mobile unit is provided with a key, an elastic component and magnets corresponding to the quantity and horizontal position distribution of the Hall sensors, and the key is arranged at the upper end of the magnet and at least partially protrudes out of the upper surface of the second functional unit; the elastic component is arranged at the lower end of the magnet;

the Hall sensor is electrically connected with the MCU unit to form a signal loop for receiving the magnet to trigger the Hall sensor.

The embodiment of the invention also discloses electronic equipment which comprises the input signal generating device.

The application has the following advantages:

in the embodiment of the application, a first moving unit is arranged at the inner center of a fixed base; the first mobile unit is connected with the side end in the fixed base through at least three first conductors capable of generating horizontal deformation; the upper surface of the first mobile unit is provided with an electrode plate and a first magnetic part; the electrode plate is at least two sections, wherein one section is grounded, and the other section is connected with the MCU unit; the second mobile unit is arranged on the upper surface of the fixed base and is provided with a trigger key and a second magnetic part which are respectively corresponding to the electrode plate and the first magnetic part in position distribution, wherein the first mobile unit and the second mobile unit are separated by the upper surface of the fixed base, and the first magnetic part and the second magnetic part are mutually attracted; the three first conductors are respectively used for connecting a power supply, data and a ground wire of the first mobile unit; and a variable capacitor for triggering an electric signal is formed between the trigger key and the electrode plate. Through the second mobile unit which can be separated, when the input is needed, the input signal generating device is formed by combining the fixed base, the separation can be carried out when the input is not needed, the error input and the illegal data input are prevented, a coupling type variable capacitor is formed by a trigger key of the second mobile unit which is separated from the electrode plate in the first mobile unit, the detected variable capacitance value is converted into an input signal, and the first mobile unit and the second mobile unit can synchronously move through the magnetic part; on one hand, the trigger key is stable and reliable without any wire connection, and on the other hand, in the device with displacement input (such as a mouse), the second mobile unit can not be scratched or abraded due to friction with a desktop.

Drawings

In order to more clearly illustrate the technical solutions of the present application, the drawings needed to be used in the description of the present application will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is a schematic structural diagram of an input signal generating apparatus according to an embodiment of the present application;

fig. 2 is a schematic plan view of a second mobile unit of an input signal generating apparatus according to an embodiment of the present application;

fig. 3 is a schematic plan view of a first mobile unit of an input signal generating apparatus according to an embodiment of the present application;

fig. 4 is a schematic structural diagram of an input signal generating apparatus according to an embodiment of the present application;

FIG. 5 is a schematic diagram of the equivalent circuit configuration of FIG. 4;

FIG. 6 is a schematic diagram of an input signal generating apparatus for a touch function according to an embodiment of the present application;

FIG. 7 is a schematic diagram of the equivalent circuit configuration of FIG. 6;

fig. 8 is a schematic structural diagram of an electrode sheet according to an embodiment of the present disclosure;

fig. 9 is a schematic structural diagram of a first sensing electrode corresponding to the electrode sheet in fig. 8 according to an embodiment of the present disclosure;

fig. 10 is an equivalent circuit diagram in one application scenario of the electrode sheet and the first induction electricity in fig. 8 and 9;

FIG. 11 is a schematic diagram of an input signal generating device comprising Hall elements according to an embodiment of the present application;

fig. 12 is a schematic structural diagram of an input signal generating device including a magnetic attraction member and a hall element according to an embodiment of the present disclosure.

In the drawings: 100. a fixed base; 101. a first mobile unit; 102. an electrode sheet; 103. a first conductor; 104. an MCU unit; 105. a first magnetically attractive component; 106. a movement sensor; 107. moving the induction surface; 201. a second mobile unit; 202. an elastic member; 203. pressing a key; 204. a touch bar; 205. a second magnetically attracting member; 206. a first sensing electrode; 210. a trigger key; 301. a first ball bearing; 401. a second ball bearing; 212. a magnet; 112. and a Hall sensor.

Detailed Description

In order to make the objects, features and advantages of the present application more comprehensible, the present application is described in further detail with reference to the accompanying drawings and the detailed description. It should be apparent that the embodiments described are some, but not all embodiments of the present application. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.

It should be noted that, in any embodiment of the present application, an MCU (micro controller Unit), also called a Single Chip Microcomputer (Single Chip Microcomputer) or a Single Chip Microcomputer, a GPIO (General Purpose Input/Output interface) is referred to as a GPIO for short, or a bus extender, and the extension of the I/O interface is usually simplified by using an industrial standard I2C, an SMBus, or an SPI interface.

Referring to fig. 1, an input signal generating apparatus according to an embodiment of the present application is shown, including: a fixed base 100, in which a first mobile unit 101 is arranged, and the upper end of which is correspondingly provided with a second mobile unit 201; the first mobile unit 101 is provided with an electrode plate 102, an MCU 104 and a first magnetic unit 105; the second mobile unit 201 is provided with a triggering key 210 and a second magnetic unit 205 corresponding to and attracting the first magnetic unit 105, wherein the triggering key 210 at least extends to the upper surface of the second functional unit 201; the trigger key 210 corresponds to the electrode sheet 102 and constitutes a signal triggering unit for triggering an input signal; the electrode plate 210 is connected with the MCU 104 to form an input signal trigger circuit from the MCU 104 to the electrode plate 102 to ground; the device has no contact inside, can not ignite flammable and explosive gas because of contact ignition, and can be directly applied to an explosion-proof environment.

Through the second mobile unit 201 which can be separated, when the input is needed, the input signal generating device is formed by combining the fixed base 100, the separation can be carried out when the input is not needed, the error input and the illegal data input are prevented, a coupling type variable capacitor is formed by the trigger key 210 of the second mobile unit 201 which is separated from the electrode plate 102 in the first mobile unit 101, the detected variable capacitance value is converted into the input signal, and the first mobile unit 101 and the second mobile unit 201 can synchronously move through the magnetic attraction component; on one hand, the trigger key is stable and reliable without any wire connection, and on the other hand, in the device with displacement input (such as a mouse), the second mobile unit can not be scratched or abraded due to friction with a desktop.

Next, an input signal generating apparatus in the present exemplary embodiment will be further described.

In one embodiment of the present application, as shown in fig. 1, the present application includes a fixed base 100, a first moving unit 101 disposed at an inner center thereof; the first mobile unit 101 is connected to the side end of the fixed base 100 through at least three first conductors 103 capable of generating horizontal deformation; an electrode sheet 102 and a first magnetic part 105 are arranged on the upper surface of the first moving unit 101; the electrode plate 102 is at least two sections, one section is grounded, and the other section is connected with the MCU 104; a second moving unit 201 disposed on the upper surface of the fixed base 100, wherein the second moving unit 201 is provided with a trigger key 210 and a second magnetic component 205 respectively corresponding to the electrode sheet 102 and the first magnetic component 105, wherein the first moving unit 101 and the second moving unit 201 are separated by the upper surface of the fixed base 100, the first magnetic component 105 and the second magnetic component 205 attract each other, when the second moving unit 201 moves under the external force, the first moving component 101 moves along with the second magnetic component 205 by the magnetic force of the first magnetic component 105 and the second magnetic component 205 attracting each other, and when the displacement is used as the source of the input data, the whole device does not rub against the placing platform, thereby avoiding the abrasion or scratch of the platform surface; the three first conductors 103 are respectively used for connecting a power supply, data and a ground wire of the first mobile unit 101, and are used for supplying power to components in the first mobile unit and transmitting data to other equipment; the deformable first conductor 103 ensures that the power supply and data transmission of the first mobile unit 101 are not interrupted when the first mobile unit moves; wherein a variable capacitor for generating a trigger electric signal is formed between the trigger key 210 and the electrode sheet 102; the electrode plate 102 and the trigger key 210 form a variable capacitor, the capacitance value of the variable capacitor is changed when the trigger key 210 is triggered, and the changed capacitance value is detected by the MCU 104 and converted into an input signal. The second moving unit 201, which can be separated from the stationary base 100, is combined with the stationary base 100 to form an input signal generating device when an input is required, and can be separated when an input is not required, thereby preventing erroneous input and illegal input of data.

In an embodiment of the present application, as shown in fig. 1 to 3, the first conductor 103 is a coil spring; the center of the coil spring is connected to the first moving unit 101, and the outer circumference of the coil spring is connected to the side of the stationary base 100.

Through the clip spring, on one hand, the first mobile unit 101 can automatically return to the original position under the action of elastic force after being displaced; on the other hand, the clip spring serves as a conductor of a power supply and a data line at the same time, is connected to an external power supply and data processing mechanism, does not need separate wiring, and can save material cost.

In an embodiment of the present invention, in order to simplify the design and save the cost, the electrode pad 102 is preferably a pad, and the pad on the circuit board is directly used as the electrode pad 102 to be an electrode of the variable capacitance.

In one embodiment of the present invention, the first magnetic part 105 is made of a material that can be attracted by a magnet corresponding to the second magnetic part 205, or the second magnetic part 205 is made of a material that can be attracted by a magnet corresponding to the first magnetic part 105; in order to improve the attraction force of mutual attraction, a plurality of magnetic parts can be arranged and/or magnets can be used for the first magnetic part 105 and the second magnetic part 105, and the magnetic poles of the corresponding positions of the first magnetic part and the second magnetic part are set to be opposite in polarity; preferably, a neodymium magnet having strong magnetism may be used.

In the above embodiment, two or more sets of the first magnetic attraction members 105 and the second magnetic attraction members 205 are arranged, so that not only can the magnetic attraction between the first magnetic attraction members 105 and the second magnetic attraction members 205 be enhanced, but also the alignment function can be provided for the first mobile unit and the second mobile unit, that is, only the first magnetic attraction members 105 and the second magnetic attraction members 205 are correspondingly attracted, so that the positions of the first mobile unit 101 and the second mobile unit 201 are correspondingly well corresponded.

In an embodiment of the present application, the triggering key 210 includes a key 203 and an elastic component 202; the key 203 is disposed on the upper portion of the elastic member 202, and at least partially protrudes from the upper surface of the second mobile unit 201; the elastic member 202 forms a first variable capacitance corresponding to the electrode sheet 102.

Make elastomeric element 202's elasticity stroke change when pressing down through button 203, for electrode slice 202's distance and relative variable product change to change the capacity of the first variable capacitance who is formed by the two, for current equipment that uses micro-gap switch, the movable part in this application, for example button 203 and elastomeric element 202 need not the connecting wire, solves the problem that the equipment button that uses micro-gap switch easily became invalid simultaneously, improves equipment life and stability.

In an embodiment of the present invention, the elastic component 202 is a spring or a spring plate, preferably a snap-fit plate.

It should be noted that the snap dome is a button dome (commonly called snap dome) and is made of ultra-thin (0.05mm-0.1mm thick) and ultra-thick (generally higher hardness) stainless steel 301 or 304 materials. The key dome is an important component of the switch.

In one embodiment of the present invention, as shown in fig. 1 to 3, a smooth pad or a plurality of universal wheels or a plurality of first rolling balls 301 are disposed on the upper surface of the first moving unit 101 in contact with the fixed base 100, and/or a smooth pad or a plurality of universal wheels or a plurality of first rolling balls 301 are disposed on the lower surface of the second moving unit 201.

When the second moving unit 201 drives the first moving unit 101 to move, friction between the second moving unit 201 and the fixed base 100 is reduced by a smooth pad or a plurality of universal wheels or a plurality of first balls 301, so that the second moving unit moves more smoothly, and the first moving unit 101 is provided with a smooth pad or a plurality of universal wheels or a plurality of first balls 301, so that the second moving unit moves more smoothly relative to the fixed base 100.

In an embodiment of the present invention, in order to make the movement of the first moving unit 101 relative to the stationary base 100 smoother and to make the friction force applied during the movement smaller, a smooth pad, a plurality of universal wheels, or a plurality of second balls 401 are disposed at a position where the lower surface of the first moving unit 101 contacts the stationary base 100.

In one embodiment of the present invention, as shown in fig. 4, the touch screen further includes a first sensing electrode 206, the first sensing electrode 206 is disposed between the trigger key 210 and the electrode sheet 102, and the first sensing electrode 206 and the electrode sheet 102 have the same segment; the first sensing electrode 206 forms the first variable capacitor with respect to the trigger key 210, and the first sensing electrode 206 and the electrode pad 102 form at least two first coupling capacitors, wherein one of the first coupling capacitors is grounded, and the other first coupling capacitor is connected to the GIPO interface of the MCU 104.

In the above embodiment, as shown in fig. 4 in combination with an equivalent circuit thereof, as shown in fig. 5, two first variable capacitors C1 and C2 are formed by the elastic component 210 and the two-step first sensing electrode 206 in the trigger key 210, and the first sensing electrode 206 and the electrode pad 102 form two first coupling capacitors C4 and C5, wherein the electrode pad 102 corresponding to C4 is grounded, the electrode pad 102 corresponding to C5 is connected to the MCU unit 104, when capacitance values of the two first variable capacitors C1 and C2 change, the first coupling capacitors C4 and C5 perform signal coupling, and the MCU unit 104 and the ground form a signal loop; however, since there is a parasitic capacitance in the circuit, as shown in fig. 5, a parasitic capacitance equivalent to C3 is formed in the second mobile unit 201, and a parasitic capacitance equivalent to C6 is formed in the first mobile unit.

It should be noted that the term "parasitic" means that a capacitor is not designed at that place, but since there is always mutual capacitance between wirings, the mutual capacitance is called a parasitic capacitor, which is also called a stray capacitor, as if the parasitic capacitor is parasitic between the wirings.

In an embodiment of the present application, as shown in fig. 6, the triggering key 210 may also be a touch bar 204; the touch bar 204 is connected to the first sensing electrode 206 and forms a second variable capacitance; the first sensing electrode 206 and the electrode sheet 102 form the first coupling capacitor; two of the first coupling capacitors are respectively connected to different gioo interfaces of the MCU unit 104.

In the above embodiment, as shown in fig. 6 in combination with the equivalent circuit thereof, as shown in fig. 5, the touch bar 204 is equivalent to the second variable capacitors C10 and C20, when the touch bar 204 is touched, the capacitance values of the second variable capacitors C10 and C20 change, and since the touch bar 204 is connected to the first sensing electrode 206, the first electrode and the electrode sheet form at least two first coupling capacitors C4 and C5, and when the capacitance values of the second variable capacitors C10 and C20 change, the two first coupling capacitors C4 and C5 perform signal coupling, and detect the coupling to signals through the MCU unit and convert the signals into input electrical signals. Since the first sensing electrode is located in the second moving unit 201, and the first moving unit 101 and the second moving unit 201 are separate parts independent from each other, a fixed base including the first moving unit 101 may be integrated into the device, or the first moving unit 101 may be directly integrated into the device, and when in use, the second moving unit 201 is moved to a position corresponding to the first moving unit 101.

In an embodiment of the present invention, a motion sensor 106 for sensing a displacement of the first mobile unit 101 with respect to the fixed base 100 is further disposed at the bottom of the first mobile unit 101, and the motion sensor 106 is electrically connected to the MCU 104, and is configured to transmit the sensed displacement information to the MCU and convert the displacement information into an input signal through the MCU.

As an example, the movement sensor 106 may be a cursor displacement sensor in a mouse, which senses the first moving unit 101 by emitting and receiving light through a photosensitive component, and generates input data of cursor movement by displacing with respect to the fixed base 100; in addition, the cursor is not suitable for being operated on a smooth table top such as glass, and the first moving unit 101 of the present application is located inside the fixed base 100, thereby further improving the adaptability of the device.

In one embodiment of the present invention, a movement sensing surface 107 is further provided above the movement sensor 106 in the stationary base 100 for sensing the sensitivity to displacement.

In a specific embodiment, as an implementation scenario of the cursor movement input device: an upper movable second moving unit 201 is provided, the bottom of the second moving unit 201 is provided with 2 or more magnets, the bottom surface of the second moving unit 201 is further provided with a device capable of reducing friction force, such as a ball or a universal wheel or a slippery material with low resistance, and the upper second moving unit 201 is placed on the surface of the fixed base 100. A fixed base 100 is arranged, and a first moving unit 101 parallel to the second moving unit 201 is arranged at the upper position in the fixed base; the first moving unit 101 in the fixed base 100 and the second moving unit 201 outside the first moving unit are disposed with a corresponding number of magnets (opposite polarity) in parallel, and at least two or more magnets are disposed to prevent the same angle from being maintained up and down, and a force is generated by the magnet at the bottom of the second moving unit 201 and the upper magnetic field of the first moving unit 101 at the lower part. By moving the second moving unit 201, the first moving unit 101 at the lower part can move synchronously, so that the cursor sensor and the cursor sensing surface can move relatively to generate cursor movement data.

In a specific embodiment, as an implementation scenario of a mouse key: the second mobile unit 201 with the movable upper part is provided with a conductive metal sheet, two capacitance sensing disks are arranged at the parallel position of the first mobile unit 101 at the lower part, one of the two capacitance sensing disks is grounded, the other capacitance sensing GPIO interface connected to the MCU unit 104 is connected, when the upper conductive metal sheet is pressed, the distance between the upper conductive metal sheet and the two sensing disks at the lower part is changed, the change of the capacitance value is changed, and the corresponding change quantity is output through MCU capacitance sensing detection.

In order to realize a plurality of keys and rollers, a plurality of groups of variable capacitance devices are required to be arranged. In order to improve the variable quantity of the variable capacitance, the distance between the upper conductive metal sheet and the lower induction disc is shortened, or the area of the lower induction disc is enlarged, and the capacitance variable quantity is in direct proportion to the area and in inverse proportion to the distance. Realize the button function and realize pressure type gyro wheel function through the change value through setting up the threshold value, a gyro wheel is by two electric capacity detection GPIO realization of two sets of response dishes.

In order to realize making things convenient for the setting of button operation position, but thereby can not infinitely increase the dome size of pressing the position and influence and press and feel and dynamics and adopt following structural style to realize: in order to solve the problem of pressing hand feeling and improve the capacitance detection sensitivity, a capacitance sensing position is pressed down and is connected to an upper part enlarged-area capacitor sensing sheet of an upper mobile device through a circuit, an enlarged-area capacitor sensing sheet is also arranged at the parallel position of a bottom mobile device, and the capacitance variation is transmitted to a lower part mobile device capacitance detection MCU in an electrified capacitance coupling mode; that is, the first sensing electrode 206 having a larger area and the electrode pad 102 having a correspondingly larger area are provided, so that the variable capacitor and the first coupling capacitor have higher sensitivity.

In this specific implementation, in order to reduce the weight of the first mobile unit 101 and make it move more flexibly, the first mobile unit can be set as a wired device, that is, a power line and a signal output end are fixed on the base housing. A plurality of the square-shaped springs are arranged in parallel up and down, so that power supply and signal transmission can be realized. In addition, after the operation is completed, the zigzag spring can return the first mobile unit 101 to the central position, and at this time, the first mobile unit 101 drives the second mobile unit 201 to automatically move to the central position through the magnetic force of the magnet, and the cursor action sensing signal controls the output of the cursor movement data, and the cursor movement data can automatically return to the position when the cursor is not operated.

In an embodiment of the present application, the first sensing electrode pad 206 may be a one-piece type, as shown in fig. 9, the electrodes of the one-piece type first sensing electrode pad 206 are connected into a whole, so as to increase the sensing area of the electrode surface, as shown in fig. 8, the electrode pad 102 has a one-to-one correspondence relationship with the electrodes of the first sensing electrode pad 206 shown in fig. 9, so as to form a coupling capacitor, wherein one electrode of the electrode pad 102 is grounded, and the other electrodes are respectively connected to different GPIO interfaces of the MCU unit, so as to form a loop, and an application scenario equivalent circuit of the loop is shown in fig. 10, for example, the KG electrode of the electrode pad 102 is used as a ground electrode (corresponding to the formed coupling capacitor C80), and K1 to K5, and K + and K-are used as electrodes (corresponding to the formed variable capacitors C40 to C70) connected to the MCU unit 104; in the circuit shown in fig. 10, one end of the coupling capacitor C80 is grounded, and in another implementation, one end of the coupling capacitor C80 is not grounded but connected to a power supply terminal of a device, so that the same signal coupling function can be achieved.

As an example, for example, when the mobile device is a mouse, the lower first mobile unit 101 is made as a capacitive sensing pad connected to ground or power and a capacitive sensing pad connected to a button or a scroll wheel to form a charging or discharging circuit.

It should be noted that the signal loop formed by the MCU unit 104 mainly has two forms, one is as shown in fig. 7, in the circuit, different GPIO pins and ground pins in the MCU unit form a signal loop of its own; in another form, as shown in fig. 5 and 10, a signal loop coupling the coupling capacitor to ground is through MCU unit 104; the implementation principle is that the capacitor is charged or discharged through the GIPO interface of MCU unit 104, and as the capacitance change of the capacitor is calculated by the capacitance charging and discharging time, MCU unit 104 converts into a corresponding input signal when obtaining the change amount.

In an embodiment of the present application, as shown in fig. 11, an input signal generating apparatus is disclosed, which includes: a fixed base 100, in which a first mobile unit 101 is arranged, and the upper end of which is correspondingly provided with a second mobile unit 201; the first mobile unit 101 is provided with an MCU unit 104 and at least one hall sensor 112; the second mobile unit 201 is provided with a button 203, an elastic component 202 and magnets 212 corresponding to the number and horizontal position distribution of the hall sensors 112, the button 203 is arranged at the upper end of the magnet 212 and at least partially protrudes out of the upper surface of the second functional unit 201; the elastic part 202 is provided at the lower end of the magnet 212; the hall sensor 112 is electrically connected to the MCU unit 104 to form a signal loop for receiving the magnet 212 to trigger the hall sensor 112.

In the above embodiment, a plurality of the hall sensors 112 may be installed in the lower first moving unit 101; the magnet 212 is disposed at a position corresponding to the upper second moving unit 201, the magnet 212 moves up and down by pressure, the hall sensor 112 at the lower position detects a change in voltage, the GPIO of the MCU 104 detects an output variation, and the switching function or the roller variation is realized by the variation.

In an embodiment of the present application, the stationary base 100 is provided therein with a first moving unit 101, and the upper end thereof is correspondingly provided with a second moving unit 201; the first mobile unit 101 is provided with an MCU unit 104 and at least one hall sensor 112; the second mobile unit 201 is provided with a button 203, an elastic component 202 and magnets 212 corresponding to the number and horizontal position distribution of the hall sensors 112, the button 203 is arranged at the upper end of the magnet 212 and at least partially protrudes out of the upper surface of the second mobile unit 201; the elastic part 202 is provided at the lower end of the magnet 212; the hall sensor 112 is electrically connected to the MCU unit 104 to form a signal loop for receiving the magnet 212 to trigger the hall sensor 112; the first mobile unit 101 is further provided with a first magnetic attraction unit 105; the second moving unit 201 further has a second magnetic unit 205 corresponding to and attracting the first magnetic unit 105.

Advantageously, the first magnetic unit 105 and the second magnetic unit 205 can be provided with two or more sets, for example, magnets with opposite polarities are provided, so as to ensure that the first moving unit 101 and the second moving unit 201 can be connected by the magnetic force and always keep parallel operation; on the other hand, when two or more first magnetic attraction units 105 and second magnetic attraction units attract each other, the first moving unit 101 and second moving unit 201 can be automatically aligned;

it should be noted that, no matter whether capacitive detection or magnetic detection is adopted, the lower moving device and the lower moving device are always in parallel operation through the connection of the action of the field force.

In an embodiment of the present application, an electronic device is further disclosed, which includes the input signal generating apparatus, and the input signal generating apparatus, as an electronic device, can be used in any scene requiring input of the device.

It should be noted that the application scenarios of the present application include, but are not limited to, computer input devices such as a mouse and a keyboard, and may also be used as other electronic products such as a handle, and in addition, the shapes of the product of the present application include, but are not limited to, the shapes in the drawings.

The beneficial effect of this application still includes: because the microswitch is not adopted in the application, the circuit does not have a contact, and the phenomenon of contact and ignition of the contact does not exist, so that the microswitch can be directly applied to an explosion-proof environment to be used as input equipment, such as mines, refineries and oil and gas facilities; because this application adopts split type equipment, its main signal processing lies in unable adjustment base, and fixed can be integrated in other equipment, when the second mobile unit lose can directly change the matching model can, need not the overall change, can reduce the loss of property that equipment lost and brought.

While preferred embodiments of the present application have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including the preferred embodiment and all such alterations and modifications as fall within the true scope of the embodiments of the application.

Finally, it is further noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal 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 terminal. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or terminal that comprises the element.

The input signal generating apparatus and the electronic device provided by the present application are introduced in detail, and specific examples are applied herein to illustrate the principles and embodiments of the present application, and the descriptions of the above embodiments are only used to help understand the method and the core ideas of the present application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims

1. An input signal generating apparatus, comprising:

the first mobile unit is provided with an electrode plate, an MCU unit and a first magnetic attraction unit;

2. The device of claim 1, further comprising a first conductor, wherein the first moving unit is connected to a side end inside the fixed base through at least three first conductors capable of generating horizontal deformation;

3. The apparatus of claim 2, wherein the first conductor is a coil spring;

4. The device of claim 1, wherein the activation key comprises a key and a resilient member;

5. The device of claim 4, wherein the resilient member is a spring or a leaf spring.

6. The apparatus according to claim 1, wherein a smooth pad or a plurality of universal wheels or a plurality of first balls are provided at a position where the upper surface of the first moving unit contacts the fixed base, and/or,

and/or the presence of a gas in the gas,

and a smooth pad or a plurality of universal wheels or a plurality of second balls are arranged at the position where the lower surface of the first moving unit is contacted with the fixed base.

7. The device of claim 3 or 4, further comprising a first sensing electrode disposed between the trigger key and the electrode pad, and having the same segment as the electrode pad;

8. The device of claim 7, wherein the triggering key is further a touch bar;

the touch bar is connected with the first induction electrode and forms a second variable capacitor; the two first coupling capacitors are respectively connected to different GIPO interfaces of the MCU unit.

9. An input signal generating apparatus, comprising:

10. An electronic device, characterized in that it comprises an input signal generating apparatus as claimed in any one of claims 1 to 9.