Input signal generating device and electronic equipment

Abstract

The present application provides an input signal generating device, comprising a fixed base, a first movable unit disposed therein, and a second movable unit disposed correspondingly at the upper end thereof; the first movable unit is provided with an electrode sheet, an MCU unit, and a first magnetic unit; the second movable unit is provided with a trigger key and a second magnetic unit; the trigger key corresponds to the electrode sheet and constitutes a signal trigger unit; the electrode sheet is connected to the MCU unit to form an input signal trigger loop from the MCU unit to the electrode sheet to the ground. A coupled variable capacitor is formed by separating the trigger key and the electrode sheet from each other, converting the detected capacitance value into an input signal, and enabling the first movable unit and the second movable unit to move synchronously through the magnetic component; on the one hand, the trigger key does not require any wire connection and is stable and reliable; on the other hand, in a device with displacement input (such as a mouse), the second movable unit does not rub against the desktop and is not scratched or worn.

Description

Technical Field

[0001] The present application relates to the technical field of input devices, and in particular to an input signal generating device and an electronic device. Background Art

[0002] Input devices are one of the primary means of exchanging information between users and computer systems. Examples include keyboards, mice, cameras, scanners, light pens, handwriting tablets, joysticks, and voice input devices. An input device is a device used by humans or external devices to interact with a computer, inputting raw data and the programs that process these data. Computers can receive a variety of data, both numerical and non-numerical, such as graphics, images, and sounds. These data can be input into the computer through various input devices for storage, processing, and output.

[0003] Current input devices are generally all-in-one devices, such as keyboards and mice, which can be directly input after being connected to the terminal device, which can easily lead to incorrect input. In addition, the buttons generally use micro switches. However, the mechanical components of micro switches are easily damaged after long-term use and are easily affected by environmental factors such as moisture or smoke, which can cause malfunction. In addition, electronic devices with contacts produce sparks when the contacts touch, and cannot be directly used in explosion-proof environments. Summary of the Invention

[0004] In view of the above problems, the present application is proposed to provide an input signal generating device and an electronic device that overcome the above problems or at least partially solve the above problems.

[0005] An embodiment of the present invention discloses an input signal generating device, comprising:

[0006] A fixed base, wherein the first movable unit is disposed therein, and a second movable unit is disposed correspondingly at the upper end thereof;

[0007] The first moving unit is provided with an electrode sheet, an MCU unit and a first magnetic unit;

[0008] The second movable unit is provided with a trigger button and a second magnetic unit corresponding to and attracted to the first magnetic unit, wherein the trigger button at least extends to the upper surface of the second functional unit;

[0009] The trigger key corresponds to the electrode sheet and constitutes a signal trigger unit;

[0010] The electrode sheet is connected to the MCU unit to form an input signal trigger loop from the MCU unit to the electrode sheet to ground.

[0011] Furthermore, it further includes a first conductor, wherein the first movable unit is connected to the side end inside the fixed base through at least three first conductors capable of generating horizontal deformation;

[0012] A motion sensor for sensing the displacement of the first mobile unit relative to the fixed base is further provided at the bottom of the first mobile unit, and the motion sensor is electrically connected to the MCU unit;

[0013] The three first conductors are respectively used to connect the power supply, data and ground lines of the first mobile unit.

[0014] Furthermore, the first conductor is a return spring;

[0015] The center of the return spring is connected to the first moving unit, and the outer periphery of the return spring is connected to the side of the fixed base.

[0016] Furthermore, the trigger key includes a button and an elastic component;

[0017] The button is arranged on the upper part of the elastic component and at least partially protrudes from the upper surface of the second movable unit; the electrode sheet is an electrode sheet divided into at least two sections, one section is grounded, and the other section is electrically connected to the MCU unit;

[0018] The elastic component and the electrode sheet form a first variable capacitor corresponding to each other.

[0019] Furthermore, the elastic component is a spring or a spring.

[0020] Furthermore, 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 movable unit contacts the fixed base, and / or,

[0021] The lower surface of the second mobile unit is provided with a smooth pad or a plurality of universal wheels or a plurality of first balls.

[0022] and / or,

[0023] A smooth pad or a plurality of universal wheels or a plurality of second rolling balls are provided at a position where the lower surface of the first movable unit contacts the fixed base.

[0024] Furthermore, it further comprises a first sensing electrode, wherein the first sensing electrode is provided between the trigger key and the electrode sheet, and the first sensing electrode and the electrode sheet have the same segmentation;

[0025] The first sensing electrode forms the first variable capacitor relative to the trigger key, and the first sensing electrode and the electrode sheet form at least two first coupling capacitors, wherein one first coupling capacitor is grounded, and the other first coupling capacitor is connected to the GIPO interface of the MCU unit.

[0026] Furthermore, the trigger key may also be a touch bar;

[0027] The touch bar is connected to the first sensing electrode to form a second variable capacitor; wherein two first coupling capacitors are respectively connected to different GIPO interfaces of the MCU unit.

[0028] An embodiment of the present invention discloses an input signal generating device, comprising:

[0029] A fixed base, wherein the first movable unit is disposed therein, and a second movable unit is disposed correspondingly at the upper end thereof;

[0030] The first mobile unit is provided with an MCU unit and at least one Hall sensor;

[0031] The second movable unit is provided with a button, an elastic component, and magnets corresponding to the number and horizontal position distribution of the Hall sensors, the button is provided on the upper end of the magnet and at least partially protrudes from the upper surface of the second functional unit; the elastic component is provided on the lower end of the magnet;

[0032] The Hall sensor is electrically connected to the MCU unit to form a signal loop for receiving a signal from the magnet to trigger the Hall sensor.

[0033] An embodiment of the present invention further discloses an electronic device, comprising the above-mentioned input signal generating device.

[0034] This application has the following advantages:

[0035] In an embodiment of the present application, a first movable unit is provided at the center position of a fixed base; the first movable unit is connected to the side end of the fixed base through at least three first conductors that can generate horizontal deformation; an electrode sheet and a first magnetic component are provided on the upper surface of the first movable unit; the electrode sheet is at least two sections, one section is grounded, and the other section is connected to the MCU unit; a second movable unit is provided on the upper surface of the fixed base, and the second movable unit is provided with a trigger key and a second magnetic component corresponding to the position distribution of the electrode sheet and the first magnetic component, respectively, wherein the first movable unit and the second movable unit are separated by the upper surface of the fixed base, and the first magnetic component and the second magnetic component attract each other; wherein the three first conductors are respectively used to connect the power supply, data and ground wires of the first movable unit; wherein a variable capacitor for triggering an electrical signal is formed between the trigger key and the electrode sheet. The detachable second mobile unit is combined with a fixed base to form an input signal generating device when input is required. It can be detached when input is not required to prevent erroneous input and illegal input of data. The trigger key of the detachable second mobile unit and the electrode sheet in the first mobile unit form a coupled variable capacitor, and the detected change in capacitance value is converted into an input signal. The first and second mobile units can be moved synchronously through the magnetic attraction component. On the one hand, the trigger key does not require any wire connection and is stable and reliable. On the other hand, in a device with displacement input (such as a mouse), the second mobile unit will not be scratched or worn by friction with the desktop. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the technical solution of the present application, the following is a brief introduction to the drawings required for the description of the present application. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0037] Figure 1 This is a structural diagram of an input signal generating device provided in one embodiment of the present application;

[0038] Figure 2 This is a schematic planar structural diagram of a second mobile unit of an input signal generating device provided in one embodiment of the present application;

[0039] Figure 3 This is a schematic planar structural diagram of a first moving unit of an input signal generating device provided in one embodiment of the present application;

[0040] Figure 4 This is a structural diagram of an input signal generating device provided in one embodiment of the present application;

[0041] Figure 5 yes Figure 4 Schematic diagram of the equivalent circuit structure;

[0042] Figure 6 This is a structural diagram of an input signal generating device for a touch function provided by an embodiment of the present application;

[0043] Figure 7 yes Figure 6 Schematic diagram of the equivalent circuit structure;

[0044] Figure 8 This is a schematic diagram of an electrode sheet structure provided in one embodiment of the present application;

[0045] Figure 9 This is an embodiment of the present application provided with Figure 8 A schematic diagram of a first sensing electrode structure corresponding to the middle electrode sheet;

[0046] Figure 10 yes Figure 8 and Figure 9 An equivalent circuit diagram of an application scenario of the electrode sheet and the first induction circuit;

[0047] Figure 11 A schematic structural diagram of an input signal generating device composed of a Hall element provided in an embodiment of the present application;

[0048] Figure 12 An embodiment of the present application provides a structural schematic diagram of an input signal generating device including a magnetic attraction component and a Hall element.

[0049] In the accompanying drawings: 100, fixed base; 101, first mobile unit; 102, electrode sheet; 103, first conductor; 104, MCU unit; 105, first magnetic component; 106, motion sensor; 107, motion sensing surface; 201, second mobile unit; 202, elastic component; 203, button; 204, touch bar; 205, second magnetic component; 206, first sensing electrode; 210, trigger button; 301, first ball; 401, second ball; 212, magnet; 112, Hall sensor. DETAILED DESCRIPTION

[0050] To make the objectives, features, and advantages of this application more readily apparent, the present application is further described below in conjunction with the accompanying drawings and specific embodiments. It is apparent that the embodiments described are only a portion of the embodiments of this application, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments in this application without inventive effort are also within the scope of protection of this application.

[0051] It should be noted that in any embodiment of the present application, the MCU (Microcontroller Unit), also known as a single-chip microcomputer (Single Chip Microcomputer) or a single-chip microcomputer, the GPIO (General Purpose Input Output), abbreviated as GPIO, or a bus expander, often uses industrial standard I2C, SMBus or SPI interfaces to simplify the expansion of I / O ports.

[0052] Reference Figure 1 , shows an input signal generating device provided by an embodiment of the present application, including: a fixed base 100, in which a first movable unit 101 is provided, and a second movable unit 201 is provided corresponding to the upper end thereof; the above-mentioned first movable unit 101 is provided with an electrode sheet 102, an MCU unit 104 and a first magnetic unit 105; the above-mentioned second movable unit 201 is provided with a trigger key 210, and a second magnetic unit 205 corresponding to and attracted to the above-mentioned first magnetic unit 105, wherein the above-mentioned trigger key 210 extends at least to the upper surface of the above-mentioned second functional unit 201; the above-mentioned trigger key 210 corresponds to the above-mentioned electrode sheet 102 and constitutes a signal trigger unit for triggering an input signal; the above-mentioned electrode sheet 210 is connected to the above-mentioned MCU unit 104 to form an input signal trigger circuit from the above-mentioned MCU unit 104 to the above-mentioned electrode sheet 102 to the ground; there are no contacts inside the above-mentioned device, and the gas in the flammable and explosive environment will not be ignited due to ignition of the contacts, and it can also be directly applied to explosion-proof environments.

[0053] The detachable second mobile unit 201 is combined with the fixed base 100 to form an input signal generating device when input is required. It can be detached when input is not required to prevent erroneous input and illegal input of data. The trigger key 210 of the detachable second mobile unit 201 and the electrode sheet 102 in the first mobile unit 101 form a coupled variable capacitor, which converts the detected capacitance value into an input signal, and the first mobile unit 101 and the second mobile unit 201 can move synchronously through the magnetic component. On the one hand, the trigger key does not require any wire connection and is stable and reliable. On the other hand, in a device with displacement input (such as a mouse), the second mobile unit will not be scratched or worn by friction with the desktop.

[0054] Next, an input signal generating device in this exemplary embodiment will be further described.

[0055] In one embodiment of the present application, Figure 1As shown, it includes a fixed base 100, in which a first movable unit 101 is provided at the center position; the first movable unit 101 is connected to the side end of the fixed base 100 through at least three first conductors 103 that can generate horizontal deformation; the upper surface of the first movable unit 101 is provided with an electrode sheet 102 and a first magnetic component 105; wherein the electrode sheet 102 is at least two sections, one section is grounded, and the other section is connected to the MCU unit 104; the second movable unit 201 is provided on the upper surface of the fixed base 100, and the second movable unit 201 is provided with a trigger key 210 and a second magnetic component 205 corresponding to the position distribution of the electrode sheet 102 and the first magnetic component 105, wherein the first movable unit 101 and the second movable unit 201 are separated by the upper surface of the fixed base 100, and the first magnetic component 105 and the second magnetic component 205 attract each other, and are used for when the second movable component 201 is outside When moving under the action of force, the magnetic force of the mutual attraction between the first magnetic component 105 and the above-mentioned second magnetic component 205 is used to make the first movable component 101 follow the movement. When displacement is used as the source of input data, the entire device will not move with friction with the placement platform, thereby avoiding wear or scratches on the table surface; wherein, the three above-mentioned first conductors 103 are respectively used to connect the power supply, data and ground wires of the above-mentioned first movable unit 101, and are used to power the components in the first movable unit and transmit data between other devices; the deformable first conductor 103 ensures that the power supply and data transmission of the first movable unit 101 will not be interrupted when moving; wherein, a variable capacitor for triggering an electrical signal is formed between the above-mentioned trigger key 210 and the above-mentioned electrode sheet 102; a variable capacitor is formed by the electrode sheet 102 and the trigger key 210, and the capacitance value of the variable capacitor changes when the trigger key 210 is triggered, and the changed capacitance value is detected by the MCU unit 104 and converted into an input signal. The second movable unit 201 detachable from the fixed base 100 can be combined with the fixed base 100 to form an input signal generating device when input is required, and can be detached when input is not required to prevent erroneous input and illegal input of data.

[0056] In one embodiment of the present application, Figures 1 to 3 As shown, the first conductor 103 is a return spring; the center of the return spring is connected to the first moving unit 101 , and the periphery of the return spring is connected to the side of the fixed base 100 .

[0057] Through the above-mentioned return spring, on the one hand, the first movable unit 101 can automatically return to its original position under the action of elastic force after displacement; on the other hand, the return spring also serves as a conductor of the power supply and data line, connected to the external power supply and data processing mechanism, without the need for separate wiring, which can save material costs.

[0058] In one embodiment of the present application, in order to simplify the design and save costs, the electrode sheet 102 is preferably a solder pad, and the solder pad on the circuit board is directly used as the electrode sheet 102 to make it an electrode of the variable capacitor.

[0059] In one embodiment of the present application, the first magnetic component 105 is a magnet and the corresponding second magnetic component 205 is made of a material that can be attracted by a magnet, or the second magnetic component 205 is a magnet and the corresponding first magnetic component 105 is made of a material that can be attracted by a magnet; in order to increase the mutual attraction force, multiple magnetic components can be set and / or the first magnetic component 105 and the second magnetic component 105 can be evenly magnetized, and the magnetic poles of the corresponding positions of the two can be set to opposite polarities; preferably, a neodymium magnet with strong magnetism can be used.

[0060] In the above embodiment, by providing two or more groups of the above-mentioned first magnetic components 105 and the above-mentioned second magnetic components 205, not only the mutual magnetic attraction can be enhanced, but also a positioning function can be provided for the first movable unit and the second movable unit. That is, as long as the above-mentioned first magnetic components 105 and the above-mentioned second magnetic components 205 are correspondingly adsorbed, the positions of the first movable unit 101 and the second movable unit 201 will also correspond accordingly.

[0061] In one embodiment of the present application, the trigger key 210 includes a button 203 and an elastic component 202; the button 203 is arranged on the upper part of the elastic component 202 and at least partially protrudes from the upper surface of the second movable unit 201; the elastic component 202 corresponds to the electrode sheet 102 to form a first variable capacitor.

[0062] When the button 203 is pressed, the elastic stroke of the elastic component 202 changes, and the distance and relative deformation product relative to the electrode sheet 202 change, thereby changing the capacity of the first variable capacitor formed by the two. Compared with existing devices using micro switches, the active components in this application, such as the button 203 and the elastic component 202, do not need to be connected with wires, and at the same time solve the problem that the buttons of devices using micro switches are prone to failure, thereby improving the service life and stability of the equipment.

[0063] In one embodiment of the present application, the elastic component 202 is a spring or a spring, preferably a pot piece.

[0064] It should be noted that the metal dome is a key shrapnel (commonly known as a metal dome or snap dome), made of ultra-thin (0.05mm-0.1mm thickness) or ultra-thick (generally higher hardness) stainless steel 301 or 304. The key shrapnel is an important component of the switch.

[0065] In one embodiment of the present application, Figures 1 to 3As shown, a smooth pad or a plurality of universal wheels or a plurality of first balls 301 are provided on the upper surface of the first movable unit 101 at the position where the upper surface contacts the fixed base 100, and / or a smooth pad or a plurality of universal wheels or a plurality of first balls 301 are provided on the lower surface of the second movable unit 201.

[0066] When the second mobile unit 201 drives the first mobile unit 101 to move, the friction between the second mobile 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 mobile unit 201 moves more smoothly. The first mobile unit 101 is provided with a smooth pad or a plurality of universal wheels or a plurality of first balls 301, so that the first mobile unit 101 moves more smoothly relative to the fixed base 100.

[0067] In one embodiment of the present application, in order to make the above-mentioned first movable unit 101 move more smoothly relative to the fixed base 100 and to reduce the friction force encountered during movement, a smooth pad or a plurality of universal wheels or a plurality of second balls 401 are provided at the position where the lower surface of the above-mentioned first movable unit 101 contacts the above-mentioned fixed base 100.

[0068] In one embodiment of the present application, Figure 4 As shown, the device further includes a first sensing electrode 206, which is disposed between the trigger key 210 and the electrode sheet 102, and has the same segmentation as the electrode sheet 102. The first sensing electrode 206 forms the first variable capacitor relative to the trigger key 210, and the first sensing electrode 206 and the electrode sheet 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 unit 104.

[0069] In the above embodiment, Figure 4 As shown in Figure 2 and combined with its equivalent circuit, Figure 5 As shown, two first variable capacitors C1 and C2 are formed by the elastic component 210 in the trigger key 210 and the two-stage first sensing electrode 206. The first sensing electrode 206 and the electrode sheet 102 form two first coupling capacitors C4 and C5. The electrode of the electrode sheet 102 corresponding to C4 is grounded, and the electrode of the electrode sheet 102 corresponding to C5 is connected to the MCU unit 104. When the capacitance values ​​of the two first variable capacitors C1 and C2 change, the first coupling capacitors C4 and C5 perform signal coupling, and a signal loop is formed by the MCU unit 104 and the ground. Since parasitic capacitance exists in the circuit, as shown in FIG. Figure 5 As shown, a parasitic capacitor equivalent to C3 is formed in the second mobile unit 201, and a parasitic capacitor equivalent to C6 is formed in the first mobile unit.

[0070] It should be noted that the meaning of parasitic is that the capacitor is not originally designed in that place, but because there is always mutual capacitance between the wirings, the mutual capacitance is like parasitic between the wirings, so it is called parasitic capacitance, also known as stray capacitance.

[0071] In one embodiment of the present application, Figure 6 As shown, the trigger key 210 may also be a touch bar 204; the touch bar 204 is connected to the first sensing electrode 206 to form a second variable capacitor; the first sensing electrode 206 and the electrode sheet 102 form the first coupling capacitor; wherein the two first coupling capacitors are respectively connected to different GIPO interfaces of the MCU unit 104.

[0072] In the above embodiment, Figure 6 As shown in Figure 2 and combined with its equivalent circuit, Figure 5 As shown, the touch strip 204 is equivalent to second variable capacitors C10 and C20. When the touch strip 204 is touched, the capacitance values ​​of the second variable capacitors C10 and C20 change. Since the touch strip 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. When the capacitance values ​​of the second variable capacitors C10 and C20 change, the two first coupling capacitors C4 and C5 couple the signal. The coupled signal is detected by the MCU and converted into an input electrical signal. Since the first sensing electrode is located in the second movable unit 201, and the first movable unit 101 and the second movable unit 201 are independent and separate components, the fixed base containing the first movable unit 101 can also be integrated into the device, or the first movable unit 101 can be directly integrated into the device. When in use, the second movable unit 201 can be moved to the corresponding position of the first movable unit 101.

[0073] In one embodiment of the present application, a motion sensor 106 is further provided at the bottom of the first movable unit 101 for sensing the displacement of the first movable unit 101 relative to the fixed base 100. The motion sensor 106 is electrically connected to the MCU unit 104 for transmitting the sensed displacement information to the MCU unit, which is converted into an input signal through the MCU unit.

[0074] As an example, the above-mentioned motion sensor 106 can be a cursor displacement sensor in a mouse, which senses the above-mentioned first movable unit 101 by emitting and receiving light through a photosensitive component, and causes displacement relative to the above-mentioned fixed base 100, thereby generating input data of the cursor movement; since the above-mentioned fixed base 100 will not change position relative to the placement table when the cursor moves, there will be no problem of friction and scratching the table. In addition, since the cursor movement is not suitable for operation on some smooth surfaces such as glass, the above-mentioned first movable unit 101 of the present application is located inside the above-mentioned fixed base 100, which further improves the adaptability of the device.

[0075] In one embodiment of the present application, in order to increase the sensitivity of the displacement sensing, a motion sensing surface 107 is further provided in the fixed base 100 above the motion sensor 106 .

[0076] In one specific embodiment, a cursor movement input device is implemented as follows: a second movable unit 201 is provided, with two or more magnets disposed at its bottom. The bottom surface of the second movable unit 201 is also provided with a friction-reducing device, such as a ball bearing, universal wheel, or smooth material with low resistance. The second movable unit 201 is placed on the surface of a fixed base 100. A first movable unit 101 is positioned at its upper portion, parallel to the second movable unit 201. A corresponding number of magnets (with opposite polarities) are positioned parallel to the first movable unit 101 within the fixed base 100 and the second movable unit 201 outside the fixed base 100. To prevent the two movable units from maintaining the same angle, at least two or more magnets are provided. A force is generated by the magnets at the bottom of the second movable unit 201 and the magnetic field above the first movable unit 101 below. By moving the second movable unit 201, the first movable unit 101 below is synchronized with the movement, thereby achieving relative motion between the cursor sensor and the cursor sensing surface to generate cursor movement data.

[0077] In a specific embodiment, as an implementation scenario of a mouse button: a conductive metal sheet is set in the upper movable second movable unit 201, and two capacitive sensing plates are set in a parallel position on the lower first movable unit 101, one of which is grounded and the other is connected to the capacitance detection GPIO interface of the MCU unit 104. When the upper conductive metal plate is pressed to change the distance from the two lower sensing plates, the capacitance value changes, and the corresponding change is output through the MCU capacitance detection.

[0078] To implement multiple buttons and a scroll wheel, multiple sets of variable capacitors are required. To increase the variable capacitance, the distance between the upper conductive metal sheet and the lower sensing plate can be shortened, or the area of ​​the lower sensing plate can be increased. The capacitance change is proportional to the area and inversely proportional to the distance. Key functions are achieved by setting thresholds, and pressure-activated scroll wheel functions are achieved by varying the thresholds. A single scroll wheel is implemented using two sets of sensing plates and two capacitance detection GPIOs.

[0079] In order to facilitate the setting of the key operation position, but to prevent the size of the pot piece at the pressing position from being infinitely increased, thereby affecting the pressing feel and force, the following structural method is adopted: in order to solve the pressing feel and improve the capacitance detection sensitivity, the capacitance sensing position is pressed and connected to the upper mobile device capacitance sensing piece with an enlarged area through a line. An enlarged capacitance sensing piece is also placed in a parallel position of the bottom mobile device. The capacitance change is transmitted to the capacitance detection MCU of the lower mobile device by power-on capacitance coupling. That is, by providing a larger area of ​​the first sensing electrode 206 and increasing the area of ​​the corresponding electrode piece 102, the above-mentioned variable capacitor and the first coupling capacitor have higher sensitivity.

[0080] In a specific implementation of this invention, in order to reduce the weight of the first movable unit 101 and make it more flexible, it can be configured as a wired device, that is, the power cord and signal output terminal are fixed to the base shell. Since the lower movable device is constantly moving during use, the connecting wire is easily damaged. The use of a return spring can achieve power and signal transmission. The spring has a long service life and is not easy to break. Multiple return springs are arranged in parallel above and below to achieve power and signal transmission. In addition, when the operation is completed, the return spring can realize the return of the first movable unit 101 to the center position. At this time, the first movable unit 101 drives the second movable unit 201 to automatically move to the center position through the magnetic force of the magnet. The cursor action sensing signal controls the output of the cursor movement data, and the second movable unit 201 can automatically return to its position when not in operation.

[0081] In one embodiment of the present application, the first sensing electrode sheet 206 may be a one-piece type. Figure 9 As shown, the electrodes are connected into a whole by the integrated first sensing electrode sheet 206, thereby increasing the sensing area of ​​the electrode surface. Figure 8 The electrode sheet 102 shown above is Figure 9 The electrodes in the first sensing electrode sheet 206 shown in FIG have a one-to-one correspondence to form a coupling capacitor, wherein one electrode in the electrode sheet 102 is grounded, and the other electrodes are connected to different GPIO interfaces of the MCU unit to form a loop. The equivalent circuit of the application scenario is as follows: Figure 10As shown, for example, the KG electrode in the electrode sheet 102 is used as the ground electrode (equivalent to the formed coupling capacitor C80), K1 to K5 and K+ and K- are used as electrodes connecting the MCU unit 104 (equivalent to the formed variable capacitors C40 to C70); in addition, Figure 10 In the circuit shown in , one end of the coupling capacitor C80 is grounded. In addition, in another implementation, one end of the coupling capacitor C80 is not grounded but connected to the power supply terminal of the device, which can achieve the same signal coupling function.

[0082] As an example, when used as a mouse, the lower first movable unit 101 is made into a capacitance sensing plate for grounding or power supply and forms a charging or discharging circuit with the capacitance sensing plate of the button or the scroll wheel.

[0083] It should be noted that the signal loop formed by the MCU unit 104 mainly has two forms, one is Figure 7 In the circuit shown, different GPIO pins and ground pins in the MCU unit form their own signal loop; another form, such as Figure 5 and Figure 10 As shown, a signal loop is formed from the MCU unit 104 to the coupling capacitor to the ground; the implementation principle is to charge or discharge the capacitor through the GIPO interface of the MCU unit 104, and the capacitance change of the capacitor is calculated due to the charging and discharging time of the capacitor. When the MCU unit 104 obtains the amount of the change, it converts it into a corresponding input signal.

[0084] In one embodiment of the present application, Figure 11 As shown, an input signal generating device is disclosed, comprising: a fixed base 100, in which a first movable unit 101 is provided, and a second movable unit 201 is provided at the upper end thereof; the first movable unit 101 is provided with an MCU unit 104 and at least one Hall sensor 112; the second movable 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 provided at the upper end of the magnet 212 and at least partially protrudes from 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 circuit for receiving the signal from the magnet 212 triggering the Hall sensor 112.

[0085] In the above embodiment, a plurality of the Hall sensors 112 can be installed on the lower first movable unit 101; the magnet 212 is set at the corresponding position of the upper second movable unit 201, and the magnet 212 is moved up and down by pressure. The Hall sensor 112 at the lower position detects the voltage change, and the output change is detected through the GPIO of the above MCU unit 104, and the switch function or the roller change is realized through the change.

[0086] In one embodiment of the present application, a fixed base 100 is provided with a first movable unit 101 therein, and a second movable unit 201 is provided at its upper end correspondingly; the above-mentioned first movable unit 101 is provided with an MCU unit 104 and at least one Hall sensor 112; the above-mentioned second movable 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 above-mentioned Hall sensors 112, the above-mentioned button 203 is provided at the upper end of the above-mentioned magnet 212, and at least partially protrudes from the upper surface of the above-mentioned second functional unit 201; the above-mentioned elastic part 202 is provided at the lower end of the above-mentioned magnet 212; the above-mentioned Hall sensor 112 is electrically connected to the above-mentioned MCU unit 104, forming a signal circuit for receiving the above-mentioned magnet 212 triggering the above-mentioned Hall sensor 112; the first movable unit 101 is also provided with a first magnetic unit 105; the above-mentioned second movable unit 201 is also provided with a second magnetic unit 205 corresponding to the position of the above-mentioned first magnetic unit 105 and attracted to it.

[0087] Advantageously, the first magnetic unit 105 and the second magnetic unit 205 can be provided as two or more groups, for example, they can be provided as magnets with opposite polarities. This ensures that the first movable unit 101 and the second movable unit 201 can always run in parallel through the connection under the action of the magnetic field force; on the other hand, when two or more first magnetic units 105 and the second magnetic units are attracted to each other, the first movable unit 101 and the second movable unit 201 can be automatically aligned.

[0088] It should be noted that no matter whether capacitance detection or magnetic detection is adopted, the upper moving device and the lower moving device are always connected and run in parallel due to the field force.

[0089] In one embodiment of the present application, an electronic device is further disclosed, including the above-mentioned input signal generating device. The above-mentioned input signal generating device is an electronic device that can be used in any scenario requiring an input device.

[0090] It should be noted that the application scenarios of this application include but are not limited to computer input devices such as mice and keyboards, and can also be used as other electronic products such as handles. In addition, the shape of the product of this application includes but is not limited to the shapes in the accompanying drawings.

[0091] The beneficial effects of the present application also include: since the present application does not use a micro switch, there are no contacts in its circuit, and there will be no phenomenon of contact sparking, and it can be directly used as an input device in explosion-proof environments, such as mines, refineries, and oil and gas facilities; since the present application uses a split device, its main signal processing is in the fixed base, and the fixed base can be integrated into other equipment. When the second mobile unit is lost, it can be directly replaced with a matching model without the need for overall replacement, which can reduce property losses caused by equipment loss.

[0092] Although preferred embodiments of the present invention have been described, those skilled in the art may make additional changes and modifications to these embodiments once they become aware of the basic inventive concepts. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the embodiments of the present invention.

[0093] Finally, it should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or terminal device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or terminal device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article, or terminal device that includes the element.

[0094] The above is a detailed introduction to an input signal generating device and an electronic device provided by the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea. At the same time, for those skilled in the art, according to the ideas of the present application, there may be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. An input signal generating device, characterized in that: include: A fixed base, wherein the first movable unit is disposed therein, and a second movable unit is disposed correspondingly at the upper end thereof; The first moving unit is provided with an electrode sheet, an MCU unit and a first magnetic unit; The second movable unit is provided with a trigger button and a second magnetic unit corresponding to and attracted to the first magnetic unit, wherein the trigger button at least extends to the upper surface of the second movable unit; The trigger key corresponds to the electrode sheet and constitutes a signal trigger unit; the trigger key includes a key and an elastic component; the key is arranged on the upper portion of the elastic component and at least partially protrudes from the upper surface of the second movable unit; the electrode sheet is an electrode sheet divided into at least two sections, one of which is grounded and the other is electrically connected to the MCU unit; the elastic component and the electrode sheet correspond to form a first variable capacitor; The electrode sheet is connected to the MCU unit to form an input signal trigger loop from the MCU unit to the electrode sheet to ground; The first movable unit is connected to a side end of the fixed base through at least three first conductors capable of generating horizontal deformation; the first conductor is a return spring; the center of the return spring is connected to the first movable unit, and the periphery of the return spring is connected to a side surface of the fixed base; A motion sensor for sensing the displacement of the first mobile unit relative to the fixed base is further provided at the bottom of the first mobile unit, and the motion sensor is electrically connected to the MCU unit; The three first conductors are respectively used to connect the power supply, data and ground lines of the first mobile unit.

2. The device according to claim 1, characterized in that The elastic component is a spring or a spring.

3. The device according to claim 1, characterized in that A smooth pad or a plurality of universal wheels or a plurality of first rolling balls are provided at a position where the upper surface of the first movable unit contacts the fixed base, and / or, The lower surface of the second mobile unit is provided with a smooth pad or a plurality of universal wheels or a plurality of first balls. and / or, A smooth pad or a plurality of universal wheels or a plurality of second rolling balls are provided at a position where the lower surface of the first movable unit contacts the fixed base.

4. The device according to claim 1, characterized in that It also includes a first sensing electrode, which is arranged between the trigger key and the electrode sheet, and has the same segmentation as the electrode sheet; The first sensing electrode forms the first variable capacitor relative to the trigger key, and the first sensing electrode and the electrode sheet form at least two first coupling capacitors, wherein one first coupling capacitor is grounded, and the other first coupling capacitor is connected to the GIPO interface of the MCU unit.

5. The device according to claim 4, characterized in that The trigger key may also be a touch bar; The touch bar is connected to the first sensing electrode to form a second variable capacitor; wherein the two first coupling capacitors are respectively connected to different GIPO interfaces of the MCU unit.

6. An input signal generating device, characterized in that: include: A fixed base, wherein the first movable unit is disposed therein, and a second movable unit is disposed correspondingly at the upper end thereof; The first mobile unit is provided with an electrode sheet, an MCU unit and at least one Hall sensor; The second movable unit is provided with a button, an elastic component, and magnets corresponding to the number and horizontal position distribution of the Hall sensors, the button being provided at the upper end of the magnet and at least partially protruding from the upper surface of the second movable unit; the elastic component being provided at the lower end of the magnet; the electrode sheet being an electrode sheet divided into at least two sections, one section being grounded and the other section being electrically connected to the MCU unit; the elastic component and the electrode sheet forming a first variable capacitor corresponding to each other; The Hall sensor is electrically connected to the MCU unit to form a signal loop for receiving the signal from the magnet triggering the Hall sensor; The first movable unit is connected to a side end of the fixed base through at least three first conductors capable of generating horizontal deformation; the first conductor is a return spring; the center of the return spring is connected to the first movable unit, and the periphery of the return spring is connected to a side surface of the fixed base; A motion sensor for sensing the displacement of the first mobile unit relative to the fixed base is further provided at the bottom of the first mobile unit, and the motion sensor is electrically connected to the MCU unit; The three first conductors are respectively used to connect the power supply, data and ground lines of the first mobile unit.

7. An electronic device, characterized in that: The device comprises the input signal generating device according to any one of claims 1 to 6.

Images