660 results about "Key switch" patented technology

A keyboard key structure comprising a key stem, a contact-based mechanical trigger, and a contactless analog key switch. The key stem is configured to be depressed and move along a linear path over a range of operation. The contact-based mechanical trigger is configured to activate after the key stem is depressed a threshold distance in the range of operation. In response to the contact-based mechanical trigger activating, the contactless analog key switch is configured to detect, at a sample rate, a position of the key stem between the threshold distance and an end of the range of operation after the key stem is depressed. The contact-based mechanical trigger can be a galvanic-type key switch. The contactless analog key switch can be one of an optical key switch, a magnetic key switch, or an inductive key switch.

The invention discloses a bipolar magnetic induction integrated circuit and a switch, the bipolar magnetic induction integrated circuit corresponds to a key switch, and each key switch comprises a switch body and a magnetic element; the switch body comprises a component capable of moving up and down, the bipolar magnetic induction integrated circuit is arranged on the surface of the PCB, and the magnetic induction direction of the bipolar magnetic induction integrated circuit is a vertical direction; the magnetic element is positioned above the bipolar magnetic induction integrated circuit and is arranged on the part capable of moving up and down, and the NS pole direction of the magnetic element is a vertical direction or a horizontal direction; the magnetic element moves up and down perpendicular to the magnetic induction horizontal plane of the bipolar magnetic induction integrated circuit. The bipolar magnetic induction integrated circuit is higher in anti-jamming capability, more suitable for dynamic control and high in function integration level, the bipolar Hall chip integrates a latch function (such as a latch type Hall), the state can be kept until the magnetic field is reverse, and the bipolar magnetic induction integrated circuit is suitable for accurate position memory.

The present invention discloses a handheld apparatus, including: a fan body provided with a snap-fit groove at its bottom; and a handle, detachably installed on the fan body, where the handle is provided with a locking mechanism, the locking mechanism includes a key switch, a locking portion, and an elastic member, the key switch is fixedly connected with the locking portion, and the elastic member is located between the locking portion and the handle, where the key switch is for a user to press to drive the locking portion to move downward, so that the locking portion and the snap-fit groove are unlocked; and the elastic member is configured to drive the locking portion to move upward, so that the locking portion and the snap-fit groove are locked. Through the present invention, a problem that existing fans are inconvenient to carry and have a monotonous function is resolved.

The utility model relates to the technical field of soil in-situ detection, and discloses a portable soil quality multi-parameter in-situ detection device. The device mainly comprises a controller, a connecting wire, an optical probe and a sensor. The controller is provided with a touch screen, a single-chip microcomputer circuit board, a single-chip microcomputer, an SD card, a key switch, a wireless communication control panel and a power source, and power source management, detection system control, real-time data processing, man-machine interaction, data storage and remote transmission can be achieved. The sensor comprises a soil temperature probe, a soil humidity probe, a soil conductivity probe and a soil pH probe, and can realize real-time data acquisition of soil temperature and humidity, conductivity and pH value; an annular lamp holder, a light source, a photoelectric sensor, a plano-convex lens, a light shielding plate, a light shielding boss and a light shielding ring are arranged in the optical probe, and rapid collection of soil organic matter spectrum information can be achieved. The soil in-situ detection device realizes synchronous acquisition of multiple parameters of soil, is reasonable in structural design and convenient to operate, and is suitable for popularization and application in the field of soil in-situ detection.

The embodiment of the invention relates to the technical field of battery packs, and particularly discloses an electric connector, a battery pack and an energy storage system.The electric connector comprises a first connector and a second connector, the first connector comprises a first body, a first conductive base, a second conductive base and a key switch, the first conductive base and the second conductive base are arranged on the first body, and the key switch is used for being connected with a main control system of the battery pack; the second connector comprises a second body, a first conductive seat and a second conductive seat, the second conductive seat is connected with a first electrode of the battery pack, the first conductive seat is provided with a current conducting bar, the current conducting bar is electrically contacted with the second conductive seat to form an opening area with the second conductive seat, and the second connector comprises a second body, a first conductive head, a second conductive head, an insulating ejector rod and an insulating spacer, in the butt joint process of the two battery packs, the insulating ejector rod of the first battery pack presses the key switch of the second battery pack, and the insulating spacer of the first battery pack abuts against the first conductive seat and the second conductive seat of the second battery pack for breaking and isolation. According to the embodiment of the invention, contact sparking caused by connection of adjacent battery packs can be reduced.

The utility model discloses a wake-up conduction structure used on a key switch, comprising a guide core, a moving plate which is arranged on the side edge of the guide core and is elastically bent downwards as a whole, and a static plate arranged below the moving plate, at least one convex edge is formed on the side edge of the guide core, the moving plate comprises at least one moving plate support arm which transversely extends towards the convex edge, and the static plate is arranged below the moving plate. The movable piece support arm is driven by the protruding edge to be in contact with or separated from the static piece under the acting force that the guide core is pressed by external force, and the movable piece and the static piece are electrically connected with an external circuit. The device can be applied to shaft bodies such as a Hall magnetic shaft and an optical axis, the application range is wide, the conduction structures of the shaft bodies such as the Hall magnetic shaft and the optical axis are awakened to realize signal transmission when the device is pressed, the conduction structures of the shaft bodies such as the Hall magnetic shaft and the optical axis are not interfered when the device is not pressed, and the shaft bodies such as the Hall magnetic shaft and the optical axis enter dormancy; therefore, the purpose of saving the electric quantity of the wireless keyboard is achieved, power consumption is reduced, the service life of the wireless keyboard is prolonged, and people can use the wireless keyboard conveniently.

Provided in the present invention are a rail transit train control method and apparatus. The method comprises: when the communication of a train is interrupted, acquiring a train movement direction, axle counting information, turnout information and a planned travelling destination, wherein the planned travelling destination is determined on the basis of passenger flow information corresponding to the next station of the train and a control instruction of an ATS center; determining train positioning information on the basis of at least one of the axle counting information and the turnout information, and the train movement direction; and determining a target authority on the basis of a plurality of device states between the train positioning information and the planned travelling destination, so as to control an operation level mode of the train, wherein the plurality of device states comprise a section state, a signal machine state, a staff protection key switch (SPKS) button state of a signal system, a screen door state, an emergency button state and a flood gate state. The method in the present invention can improve the automatic operation efficiency and operation safety of a train, thereby shortening the rescue time of an FAO system in case of a fault, and having high usability.

The utility model discloses a Hall sensor magnetic shaft switch, which comprises a base detachably mounted on a keyboard circuit board, a cover covering the base, a reset spring sleeved in the middle of the base, and a guide core of which the upper end penetrates through the cover and the lower end is pressed against the reset spring, the cover plate is arranged at the lower end of the base; the switch circuit board is arranged on the cover plate; the Hall element is arranged on the cover plate and is electrically connected with the switch circuit board; the at least two groups of conduction terminals are electrically connected with the switch circuit board and integrally extend downwards to be conducted with the keyboard circuit board; according to the utility model, the Hall element is arranged inside the key switch, so that the key switch can be freely plugged on the keyboard circuit board and can be freely replaced by other key switches, the adaptation degree of the keyboard is improved, the use of people is facilitated, the requirements of people for different key switches are met, and the use experience of people is ensured.

The utility model discloses a sound-generating structure for a key switch, comprising a base, a guide core arranged on the base, a sound-generating member movably arranged between the guide core and the base, and an elastic member having one end fixed to the lower surface of the guide core and the other end fixed to the sound-generating member, a sound-generating limiting portion is correspondingly formed on the lower surface of the guide core to limit the two sides of the sound-generating member for sounding, at least one sound-generating limiting groove is formed in the middle of the sound-generating limiting portion, and the sound-generating member acts on the sound-generating limiting groove. The sound-generating structure for a key switch provided by the utility model realizes a pressing sound-generating effect, the various structures cooperate closely, the action is smooth, fast, stable and precise, the structure has a long service life, the sound-generating effect is good, and the sound-generating effect will not be reduced after long-term use, thereby improving the user experience.

The utility model provides a key switch and a keyboard, and belongs to the technical field of electronic equipment. The key switch provided by the utility model comprises a shell, and a stroke assembly and a signal assembly which are accommodated in the shell, the stroke assembly comprises a shaft core, a shaft grid which is connected with the shaft core and is separated from the shaft core, and an elastic piece which is accommodated in the shell and enables the shaft core and the shaft grid to be in a normal contact state, and the contact surface of the shaft core and the shaft grid is an arc-shaped surface; the signal assembly comprises a trigger part and an induction part, the trigger part is installed on the shaft grid, the shaft core drives the shaft grid to move and drives the trigger part to move in the direction close to the induction part, and when the distance between the trigger part and the induction part reaches a preset threshold value, an induction signal is triggered. In order to solve the problem that in the prior art, the contact surface of the shaft core and the shaft grid is a plane, and the shaft grid can be driven to tilt when the shaft core tilts laterally, the contact surface of the shaft core and the shaft grid is adjusted to be the arc-shaped surface, the shaft grid cannot be driven to tilt when the shaft core tilts laterally, jamming caused by friction between the shaft grid and the lead column is avoided, and use experience is improved.

The present invention discloses a button linkage automatic reset shower mechanism and shower faucet, comprising a body and a control mechanism, wherein the body is provided with a water inlet channel, at least two water outlet channels, a main valve core, and a button switch valve core arranged in one-to-one correspondence with the water outlet channels; the control mechanism comprises a button module connected in one-to-one correspondence with the button switch valve core, a driving member connected to the main valve core, and a linkage rod slidably connected to the body; the button module is provided with a first elastic reset member and a first hook; the linkage rod is provided with a second hook and a second elastic reset member for driving the second hook to engage with the first hook of the pressed button module; the driving member is movably connected to one of the button modules; when the driving member drives the main valve core to block the water inlet channel, the button module connected thereto is driven to drive the button switch valve core to open the corresponding water outlet channel. The present invention allows water to flow out from a specific water outlet channel first, thereby preventing the user from being showered by mistake.

The utility model relates to the technical field of keyboards, in particular to a key switch assembly capable of triggering two instructions, which comprises a shaft body surface shell serving as a carrier of the whole assembly and a shaft body bottom shell clamped on the shaft body surface shell, and a side shaft assembly for triggering a new instruction in an up-down pressing mode is arranged on the shaft body surface shell. The side shaft assembly comprises a fixing column fixedly connected to the shaft body face shell, a spring column is connected to the fixing column in a sliding mode, a side face key cap is fixedly connected to the transmission frame, a side face reset spring used for resetting the side face key cap is fixedly connected between the transmission frame and the shaft body face shell, connecting columns are fixedly connected to the two sides of the transmission frame, and conductive silica gel is fixedly connected to the bottom ends of the connecting columns. Wherein one conductive silica gel is in contact with the pcb to conduct an electrical signal. Under the condition that the main parts of the shaft body are the same, the side surface part of the shaft body is adjusted to be a structure capable of adapting to an up-and-down pressing mode, so that an operation mode is added to an original switch structure which only has a single pressing instruction.

The utility model discloses a UPS (Uninterrupted Power Supply) starting device and an energy storage device. The UPS starting device comprises a UPS body, the starting mechanism is used for externally applying external force to control the UPS body to be started and stopped; and the fixing device is used for limiting and fixing the UPS body and the starting mechanism. The starting mechanism comprises an electromagnetic lock and a key switch used for controlling the electromagnetic lock, the electromagnetic lock comprises a lock body and a spring bolt, and when the key switch is pressed, the spring bolt extends out of the lock body to press a control button on the surface of a shell of the UPS body, so that the UPS body is started or closed. By adding the electromagnetic lock device, the starting of the UPS body is not influenced by the structural layout due to the position problem of a switch key of the UPS body, and the UPS body can be placed at a redundant space position in the energy storage box, so that the problem of front space layout of electrical parts of the energy storage equipment is reduced.

The utility model discloses a lightweight flywheel encoder with switchable hand feeling, which comprises a support and an encoder module arranged on the support, and further comprises a roller for triggering the encoder module to generate signals, a hand feeling piece is fixed at the axis of the roller, and a triggering element for triggering the encoder module to generate electric signals is further arranged on the hand feeling piece. The support is further provided with a key change-over switch and a hand feeling change-over piece. When the key change-over switch is pressed, the damping of the hand feeling change-over piece acting on the hand feeling piece can be adjusted. Damping of the hand feeling switching piece to the hand feeling piece is easily adjusted through the key change-over switch, instant switching of hand feeling is achieved, different user requirements are met, meanwhile, the structure is light, operation is easy and convenient, and user experience and flexibility and applicability of equipment are improved.

The utility model belongs to the technical field of automobile keys, and particularly relates to an automatic reset automobile key switch, which comprises a shell internally provided with a cavity; the pressing piece is arranged in the shell and can slide in the cavity; the locking assembly comprises a reset assembly arranged at the bottom of the pressing piece and used for providing reset, a contact column arranged at the bottom of the reset assembly, a movable contact piece arranged at the bottom of the contact column and a static contact piece arranged at the bottom of the cavity; the contact assembly comprises a static contact piece arranged at the bottom of the cavity and a movable contact piece arranged at the bottom of the pressing piece; after the static contact piece and the movable contact piece are in contact, the switch is turned on. The beneficial effects of the utility model are that through the arrangement of the locking assembly and the contact assembly, the opening of the switch needs a clear pressing action, the automatic reset function avoids the problem of mistaken touch caused by forgetting to lock, and the safety and convenience of use are improved.

The invention relates to the technical field of fire protection equipment, and discloses a single-arm fire protection robot which comprises a mechanical arm, one end of the mechanical arm is connected with a rotating joint, one end of the rotating joint is provided with a manipulator, the manipulator is fixedly provided with a fixed shell, and a positioning feeler lever assembly, a knob opening and closing assembly and a clamping jaw assembly are integrally assembled in the manipulator. According to the invention, the knob opening and closing assembly, the positioning feeler lever assembly and the clamping jaw assembly carry out point position calibration setting through the tail end of the feeler lever, the knob opening and closing assembly and the clamping jaw assembly act around the positioning point of the positioning feeler lever assembly, and when the point position setting of the movement of the manipulator is carried out, the micro-motion point position setting required for the key switch can be reduced; according to the technical scheme, the situation that the difference between pressing force and clamping force in key operation is large due to errors generated by operation of the mechanical arm can be reduced, meanwhile, when an operator conducts point position checking, the tedious degree of point position checking can be reduced, and later maintenance work is better facilitated.

A utility vehicle having a power control system including a key switch with multiple positions corresponding to modes including a park mode, where a parking brake mechanism is engaged for stationary stability; an operation mode, enabling directional movement by disengaging the parking brake and activating the drive arrangement; and a tow mode, which disengages the parking brake and sets the drive arrangement to neutral, allowing for manual maneuvering of the vehicle in either a forward or reverse direction.

The automatic dormancy control system of the new energy forklift comprises a circuit formed by connecting a power supply assembly and a key switch in series, the output end of the key switch is respectively connected with a main controller, an intelligent instrument and a low-voltage load, the power supply assembly comprises a lithium battery, and the lithium battery is connected with the intelligent instrument. The lithium battery is respectively connected with a battery DC-DC converter and a battery main control switch, and the battery DC-DC converter is connected with the battery BMS; the output end of the power supply assembly is connected with a dual emergency stop switch, one end of a switch K1 in the dual emergency stop switch is connected with the battery BMS through a coil of the relay, and the other end of the switch K1 is directly connected with the battery BMS to form a dormancy detection loop; one end of a switch K2 in the double emergency stop switch is connected with the anode of the lithium battery through a normally-closed switch of the relay, and the other end is connected with the key switch. When it is monitored that the whole vehicle is in a dormant state, power supplies such as a main controller, an intelligent instrument and a low-voltage load are cut off, so that energy loss is reduced, and related parts such as a battery are protected.

A keyboard system comprises a key structure including a key switch with a lighting element and phototransistor, and one or more processors that drive the lighting element for a first pulse duration. The output of the phototransistor is determined at the end of the first pulse duration, wherein the key structure is determined to be pressed when the output is below a first output value at an end of the first pulse duration, and unpressed when the output of the phototransistor is above a second output value at the end of the first pulse duration. A fall-time of the output during the first pulse duration is determined and the first pulse duration is calibrated to a second pulse duration when the fall time less than the first pulse duration, the second pulse duration being greater than the fall time and less than the first pulse duration.

A method of integrating different homomorphic operations in homomorphic encryption is provided. The method includes receiving a homomorphic ciphertext and encryption scheme information from a ciphertext generating apparatus by using a communication interface, performing a homomorphic multiplication operation on the homomorphic ciphertext by using a homomorphic multiplication operator, analyzing the encryption scheme information to determine one operation of a re-linearization operation performed by a re-linearization operator and a key switching operation performed by a key switching operator by using a main controller, performing the determined one operation by using the re-linearization operator or the key switching operator, and performing a modulus switching operation on an operation result of the determined one operation by using a modulus switching operator.

The utility model discloses a paver wireless remote control device which comprises a remote controller and a receiver, the remote controller comprises a first control panel, a second control panel, a display screen, a first controller and a wireless transmitting device; a plurality of shifting rod switches are arranged on the first control panel, a plurality of rockers, a plurality of key switches and a display screen are arranged on the second control panel, each shifting rod switch and each key switch are respectively connected with the first controller, and the rockers are connected with the first controller through the connection interface conversion chip. The signal output end of the first controller is connected with the display screen; the first controller is connected with the wireless transmitting device; the receiver comprises a wireless receiving device, a second controller and a plurality of interfaces; the receiver is mounted on the paver, and the wireless transmitting device is connected with the wireless receiving device; by arranging the rocker capable of dividing gears, the steering, the walking speed and the like in the walking mode are finely controlled, and the working efficiency of the paver is improved.

A frequency converter remote safety parking system belongs to the field of electrical control technology and comprises a safety relay A1, three intermediate relays KA1, KA2 and KA3, a key switch-Sx and a PLC (programmable logic controller) control system. Wherein the-KA1 controls a monitoring channel of a frequency converter control unit, the-KA2 controls a monitoring channel of a frequency converter motor module, and the PLC control system is used for sending a frequency converter safe stopping instruction and monitoring whether the STO function of the frequency converter is effective or not through the-KA3; the PLC control system comprises two PLC digital quantity input channels, a PLC digital quantity output channel and a man-machine interface picture; and the normally open contact of the key switch-Sx is connected with the digital quantity input of the PLC. According to the utility model, a method for realizing remote safe stopping of the frequency converter by utilizing the safe torque function STO can be widely applied to industries such as chemical engineering, metallurgy and mechanical manufacturing.

The invention discloses a radio frequency signal smart card with key switch control and a control method thereof, and belongs to the field of smart cards, the device comprises a smart card body, the smart card body is internally provided with an outer ring radio frequency antenna, a radio frequency chip, a key switch, an LED lamp pole chip and an inner ring radio frequency antenna, and the outer ring radio frequency antenna is arranged at the edge in the intelligent card body. The key switch is pressed to enable the radio frequency chip and the LED lamp pole chip to form an access through the outer ring radio frequency antenna and the inner ring radio frequency antenna, and power is supplied to the radio frequency chip and the LED lamp pole chip through cooperation of a radio frequency field, the outer ring radio frequency antenna and the inner ring radio frequency antenna near a card reader. An algorithm is pre-stored in the key switch to generate a one-time password and transmit the one-time password to the card reader, unauthorized scanning is prevented, relay attacks are resisted, an LED indicating lamp on the LED lamp pole chip indicates the transaction state, using is more visual, experience is better, active safety control is achieved through a simple structure, and the encryption scheme is simple, convenient and superior to a pure software encryption scheme.

An intelligent charging port cover plate control circuit integrating UWB ultra wide band remote control is characterized in that a main controller is arranged, and a distance detection end group of the main controller is connected with an antenna through a UWB distance detection circuit; the key detection end of the main controller is connected with an external key switch through a key detection circuit; a charging port cover plate control end of the main controller is connected with a charging port cover plate switch through an LIN bus circuit; the UWB distance detection circuit is provided with a UWB distance detection module, a data receiving end of the UWB distance detection module is connected with a first distance detection end of the main controller after being connected with a resistor R74 in series, and a data transmitting end of the UWB distance detection module is connected with a second distance detection end of the main controller after being connected with a resistor R72 in series; a first signal transmitting and receiving end of the UWB distance detection module is connected with a first antenna interface after being connected with a resistor R114 in series, and a second signal transmitting and receiving end of the UWB distance detection module is connected with a second antenna interface after being connected with a resistor R119 in series. The intelligent charging port cover plate has the advantages that the mistaken touch prevention function of the intelligent charging port cover plate is achieved, and the reliability and the anti-interference capacity of the control circuit are improved.

The application relates to a fuel cell system and a control method thereof, and an electric vehicle, the fuel cell system being connected with a power system of the electric vehicle, the fuel cell system comprising a fuel cell, a self-locking unit, a controller and a gas storage unit; in the case that a key switch is turned on, the controller is powered by a power battery, so that the controller controls the gas storage unit to execute a starting process after the self-locking unit is closed, and the fuel cell starts to work after the starting process is completed; in the case that the key switch is turned off, the controller is powered by the power battery, so that the controller controls the self-locking unit to be turned off after the gas storage unit executes a shutdown process, and the fuel cell stops working after the shutdown process is completed. According to the technical scheme, the power system of the two-wheeled electric vehicle is used to supply power for the starting process and the shutdown process of the gas storage unit, so that the traditional two-wheeled electric vehicle is conveniently transformed.

The utility model belongs to the technical field of switch equipment, and specifically relates to a control circuit for an outboard motor, a switch device and an outboard motor. The control circuit for the outboard motor comprises: a double-contact switch module and a power supply module; wherein the double-contact switch module is electrically connected to the power supply module, the double-contact switch module is electrically connected to the outboard motor, and the power supply module is suitable for being electrically connected to a power supply terminal; the double-contact switch module is suitable for being triggered to output a start signal and a shutdown signal to the outboard motor; and the power supply module is suitable for supplying power to the double-contact switch module; the utility model can greatly reduce the situation of contact disconnection by setting the double-contact switch module, ensure that the outboard motor can work continuously, improve the efficiency and safety of the outboard motor operation, and overcome the problem of frequent contact disconnection due to vibration of a key switch or a single-contact button switch.

The invention discloses an inner handle with a key switch and an indicator light, which comprises a base, a rotating groove and an unlocking groove are formed on the base, an inner handle is rotatably arranged on the rotating groove, the inner handle is partially placed in the unlocking groove, and an unlocking space for placing a hand is formed between the inner handle and the unlocking groove; a mounting groove is formed in the inner handle, an unlocking button is arranged in the mounting groove, the whole unlocking button is arranged in the mounting groove, and the mounting groove is located above the rotating groove.

A kind of vacuum magnetic wireless charging device, including wireless magnetic induction charging coil and shell, shell includes charging annular groove, the device further includes charging surface cover, key switch, slider, elastic element and rubber plug, charging surface cover cover is established in charging annular groove, the charging surface cover is equipped with suction cup, shell further includes chute located in inner side edge and the air passage in chute, slider is connected in chute by elastic element, slider and rubber plug, key switch are integral structure, one end of key switch protrudes shell, the other end is connected with slider, air passage has air hole, suction cup is equipped with exhaust hole, air hole is communicated with exhaust hole, natural state, rubber plug blocks air hole, when pressing key switch, slider drives rubber plug to move in the direction away from air hole to make rubber plug separate from air hole, when releasing pressing key switch, slider makes rubber plug elastic reset and blocks air hole under the action of elastic element.

The invention provides an intelligent equipment key testing device, and relates to the technical field of testing devices, the intelligent equipment key testing device comprises an operation table and a control table, one side of the operation table is provided with a placing disc used for storing a key panel, and one side of the control table is provided with an oscilloscope used for detecting key switch signals. The other side of the console is provided with a PLC control host used for controlling test start and stop. According to the application, the pressure in the process from the downward pressing process of the test rod to the process of completely pressing the bottommost part of the key is P, and the pressure maintained after the bottommost part of the key is pressed is P, so that under multiple times of continuous tests, the service life of the internal structure of the key is limited, and the pressure required to be pressed each time changes differently; compared with an existing testing device which can only test whether a key is triggered or not, the key pressure testing device can record and test key pressure of different times, the pressure needed when each type of key is pressed in different stages in the using process can be effectively known, and then personnel can further improve the key conveniently.