186results about How to "Electrical Safety" patented technology

The present invention relates to a layout configuration of a flat display device. The flat display device receives an AC power and comprises a display panel and a backlight unit. The layout configuration of the flat displace device comprises a video unit, a backlight driving unit and a power unit mounted on a one-layer printed circuit board and electrically connected to each other via electrical traces of the one-layer printed circuit board. The video unit controls the display panel and has an image data interface circuit, an image data processing and controlling unit, and an image data driving circuit. The backlight driving unit drives the backlight unit for emitting light to the display panel. The power unit is connected to the AC power and has an AC / DC converter and a DC / DC converter for providing power to the video unit and the backlight driving unit.

The invention discloses a novel power supply facility. The novel power supply facility comprises a plug socket fixedly mounted in a wall and a plug head connected with a power consumption apparatus via an electric wire, wherein the plug socket is provided with a sliding chamber which opens to the right, a sliding block is mounted in the sliding chamber in a sliding way, plugging grooves which opento the right are vertically symmetrically arranged in the sliding block, first elastic electric conduction sheets are mounted in the plugging grooves, a power supply block is fixedly arranged on a left end face of the sliding block, a power supply groove matched with the power supply block is arranged in a left end wall of the sliding chamber, telescoping grooves that extend up and down are symmetrically arranged in upper and lower end walls of the sliding chamber, and sliding arms are mounted in the telescoping grooves in a sliding manner; second elastic electric conduction sheets are fixedly mounted on end faces, positioned away from the sliding chamber, of the sliding arms; third elastic electric conduction sheets opposite to the second elastic electric conduction sheets are mounted inthe telescoping grooves, electric conduction arms matched with the plugging grooves are symmetrically arranged on an upper part and a lower part of a left end of the plug head, a lengthwise groove ofwhich an upper end and a lower end are communicated with each other is arranged in the plug head, and a horizontal groove which opens to the left and runs through the lengthwise groove is arranged inthe plug head.

The invention discloses a low-voltage big user integrated protection control method for a power distribution network, comprising establishing a power distribution network area autonomous management system that includes a low-voltage large user intelligent terminal, a public transformer intelligent base station and an area intelligent control center which are in mutual communication connection by an integrated communication network; dynamically configuring a low-voltage load rated capacity according to change of power distribution network load; timely monitoring load groups of a public transformer area and collecting data of the same, when the electrical load of the public transformer area exceeds the rate capacity, controlling the low-voltage large user intelligent terminal to perform overloaded regulation and control on the power distribution network in a plurality of gradient manners, and dynamically recording the maximum load data of the power distribution network. Through the integrated communication network, transmitting the maximum load data to the public transformer intelligent base station by the low-voltage large user intelligent terminal to analyze and forecast the load groups, transmitting the analyzed data to the area intelligent control center by the public transformer intelligent base station, and thereby achieving power quality and line loss background analysis, and overall regulation and control on the power distribution network.

The invention discloses an automatic rotary dinning table equipped with electromagnetic oven chafing dish, which comprises a supporting frame, a fixed table surface, a movable table surface, a motor, a gear wheel and a rotation shaft, wherein the movable table top is higher than the stationary table top, the movable table top is provided with glass plate having a chafing dish hole, a plurality of through-holes for accommodating the integral electromagnetic oven, the electric motor employs a variable speed synchronous motor, which drives the movable table top rotate through a pair of meshing gears. The dinner table uses no organic fuel, thus produces no harmful gas to people.

A mobile wireless charging system matched with an intelligent electromobile is characterized by comprising wireless charging emission coils, a wireless charging power supply circuit, a solenoid valve and a vehicle-mounted wireless induction coil, wherein the wireless charging power supply circuit and the solenoid valve are connected with the wireless charging emission coils, the wireless charging power supply circuit is connected with an expressway road network power supply to supply power to the wireless charging emission coils, the vehicle-mounted wireless induction coil is used for receiving electromagnetic waves emitted from the wireless charging emission coils and is connected with a receiving circuit, the receiving circuit is connected with an energy storage device of the electromobile, and the wireless charging emission coils are buried under a road surface of an expressway at intervals. The mobile wireless charging system is designed based on an intelligent car, and is reliable and safe in power taking and high in automation; and a wireless charging technology is employed, the mobile wireless charging system is safe and reliable, the travelling of the car is not affected even the car is charged during running, the intelligence and orderness of running of the intelligent electromobile are improved, and the road safety is improved.

An exercise rowing machine with power generation includes: a main machine frame; a seat cushion slidably mounted on the main machine frame; a supporting rod mounted on the main machine frame; a holding rod mounted on the supporting rod; a damping device; and a power generation device. The damping device includes: a belt wheel, which is rotatably mounted on the supporting rod and connected with the belt wheel through a traction band; and a pulley block, which is mounted on the main machine frame and connected with the belt wheel through an elastic band. The power generation device includes: an electric generator, which includes an input shaft and is mounted between the main machine frame and the supporting rod; a driving belt, which connects the belt wheel with the input shaft of the electric generator; and a storage battery, which is electrically connected with the electric generator.

A transformer substation camera cleaning device is used for solving the problem that a transformer substation camera is not convenient to clean and comprises an installing frame, a cleaning device, a first motor, a driving rod and a rotary driving assembly. The installing frame is rotationally arranged in an inner cavity of a support. The rotary driving assembly driving the installing frame to rotate is arranged in the inner cavity of the support. An installing rod is hinged to the front side wall of the installing frame. The cleaning device is fixed to the free end of the installing rod. A cleaning brush is arranged on the inner wall of the cleaning device. The first motor is arranged on the rear side wall of the installing frame. The driving rod is fixed to an output shaft of the first motor. The free end of the driving rod is connected with the installing rod in a hinged manner. A first long-strip hole avoiding the installing rod is formed in the left side wall of the installing frame. A second long-strip hole avoiding the driving rod is formed in the right side wall of the installing frame. The transformer substation camera cleaning device can perform real-time cleaning work on a camera, and therefore it can be guaranteed that the camera collects clear video information, and electric power security is guaranteed.

The invention relates to an automatic control system for preventing electric leakage, fire and harmonic pollution. The automatic control system is provided with a main station, a substation and a customer terminal, wherein the substation is provided with an equipment security monitor; and the customer terminal is provided with an equipment security monitor, an intelligent power monitoring instrument, a carrier electric meter and a multifunctional electric meter with harmonic monitoring function. Based on an integrated information platform created by a GIS, an equipment security tester detects the electric leakage and the multifunctional electric meter with the harmonic detection function monitors a harmonic component, so the automatic control system discovers the fault in time, is matched with the GIS system to accurately judge a fault point, solves the problem of large-area interruption maintenance when the conventional power grid accidents happen, and fulfills the purposes of secure, reliable, energy-saving and environment-friendly power supply and power utilization.

The invention provides a POE (Power Over Ethernet) multimedia terminal that supplies power voltage and Ethernet data connection to an electronic device. The Ethernet power supply multimedia terminal comprises a power module, a power supply module and a plurality of interfaces; one end of the power supply module is electrically connected with the power module, and while the other end of the power supply module is electrically connected with the interfaces; the power module supplies voltage to the power supply module; the power supply module receives and processes the voltage supplied by the power module and provides Ethernet data and electric energy to the electronic device through the interfaces at the same time. The Ethernet power supply multimedia terminal has the advantages that the indoor space and line cost are saved, the power is flexibly and safely supplied, and the compatibility is high.

The invention provides an assembled internet-of-thing low-voltage intelligent monitoring system, and belongs to the technical field of internet-of-thing low-voltage monitoring. The system comprises anintelligent detection system, a cloud platform and an intelligent terminal. The intelligent detection system comprises a signal acquisition module, a microprocessor, a key setting module, a display module, a pluggable wireless communication module, a wired communication interface and an alarm module; and in the microprocessor, the acquired voltage, current and residual current are compared with corresponding reference values to judge whether the alternating current circuit breaks down or not; the collected voltage, current and residual current are compared with corresponding reference early warning values on the cloud platform to judge whether early warning occurs in the circuit or not, wherein the reference values and the reference early warning values can be modified online or offline on the key setting module or the cloud platform. Compared with an existing internet-of-things low-voltage intelligent monitoring system, the assembled internet-of-thing low-voltage intelligent monitoring system can adjust the reference value according to changes of circuits, and circuit early warning or fault information can be sent to intelligent terminals of maintenance personnel in real time.

A soft start-up system for a motor that minimizes formation of surge and effectively contains its impacts upon any other source voltage in the peripheral to further promote safe power consumption is mounted on a motor source circuit and includes a power resistance and a relay; the power resistance is electrically connected in series to the motor; and the relay is connected in parallel with the motor and has a contact connected in parallel with the power resistance. Upon starting up of the motor, a drop generated at a working point to create delayed LV soft start-up for the motor under the condition of the activation point of the relay is OFF; and once the motor is started up, amperage drops and the relay is triggered off by returning to a working voltage connected in parallel to the relay, source at the working contact is conducted ON for the motor to resume its normal operation status.

The invention discloses a high-efficiency solar lighting system. A multicrystal silicon solar photovoltaic module array with a no-load output voltage of 60V provides electric energy. A solar charging controller is connected with the multicrystal silicon solar photovoltaic module array and is also connected with an intelligent power supply controller, the intelligent power supply controller is formed by a UPS (Uninterruptible Power Supply) switching controller based on the control of a single chip, a battery bank is connected between the solar charging controller and the intelligent power supply controller and consists of total 18 deeply circular sealed maintenance-free lead-acid accumulators with monomers of 36V, the other input end of the intelligent power supply controller is connected with a rectification voltage stabilizer connected into the mains supply, and the output end of the intelligent power supply controller is sequentially connected with an automatic dimmer and an LED lamp set. In the high-efficiency solar lighting system, 36V low-voltage direct current drives the LED lamp set without needing an immediate alternating-current and direct-current transformation process, thereby effectively avoiding the electric power consumption in the immediate alternating current and direct-current transformation process and reducing more than 60% of electric power consumption; an IC (Integrated Circuit) is controlled and driven by an optical sensing PWM (Pulse Width Modulator), and the brightness of the LED lamp can be automatically and suitably regulated according to environment illumination. The invention is mainly applied to places needing more lighting lamps and higher uniformly-distributed illuminating brightness, such as markets, hotels, schools, office buildings and the like, and also applied to household lighting systems.

The invention discloses a three-phase imbalance regulating system, which comprises at least one charging pile, a distribution transformer and a control module, wherein the at least one charging pile is used for charging an electric vehicle; the distribution transformer is used for carrying out single-phase power supply on resident electricity load and the at least one charging pile; and the control module is used for obtaining electric energy from a phase line with low power consumption and compensating a phase line with high power consumption when detecting three-phase power imbalance of thedistribution transformer, thereby achieving three-phase power balance. The invention further discloses a three-phase imbalance regulating method. According to the three-phase imbalance regulating system and method, balance use of three-phase power of the distribution transformer can be ensured and the safety and reliability of power utilization are ensured.

The invention discloses a vertical circulating garage carrying hanging bracket with a 360-degree unobstructed rotating carrying plate. The carrying hanging bracket comprises a carrying bench underframe, a rotatable carrying plate, a revolving bearing, a circular-ring-shaped rolling support device mounting base, a rolling support device, and a rotatable carrying plate electric-driving device. The revolving bearing and the circular-ring-shaped rolling support device mounting base are installed at the center of the top surface of the carrying bench underframe; and the centroid of the bottom surface of the rotatable carrying plate is arranged right above the centroid of the top surface of the carrying bench underframe. A mounting hole is formed in the centroid of the rotatable carrying plate.A plurality of rolling support devices are installed on the top surface of the circular-ring-shaped rolling support device mounting base; and the bottom surface of the rotatable carrying plate is in contact with the rolling support devices. The carrying hanging bracket has characteristics of short stop and take time, flexible rotation, high precise, and high reliability and safety.

The invention discloses an electric heating floor and a heat supply system thereof. An electroconductive heating layer of the electric heating floor is smaller than an upper substrate layer and a lower substrate layer; the lower substrate layer is provided with a groove, and the size of the groove is equal to the size of the electroconductive heating layer; the surface of the lower substrate, which is provided with the groove, is coated with resin adhesive so as to ensure that the electroconductive heating layer is arranged in the groove of the lower substrate layer; the edge of the lower substrate layer is provided with a blank substrate, and the surface of the blank substrate and the surface of the electroconductive heating layer are on the same plane; and the lower surface of the upper substrate layer is coated with resin adhesive and bonded with the lower substrate layer provided with the electroconductive heating layer so as to press the electroconductive heating layer into the substrate layers into a whole. According to the electric heating floor, the voltage in the heating floor stepped by the human body can be effectively guaranteed to be close to or even lower than the safety voltage of the human body, so that the life and property safety can be furthest guaranteed, and the electric heating floor can be widely applied to building construction and house decoration.

The invention relates to a monitor for intelligent electricity using, which comprises an input line connecting port, an output line connecting port and a reset key, and also comprises a single-chip microcomputer and a pre-warning test key, an alarm test key and a signal indicator, which are connected with the single-chip microcomputer, wherein the single-chip microcomputer can compares values of voltage, leakage current, fault arc and electrical load with preset values to output corresponding signals to a sounding device, a power supply relay and the signal indicator. The monitor for intelligent electricity using can enable electricity use of families and merchants to be safer, and can effectively integrate unsafe factors in the electricity using process, such as overvoltage, leakage current, fault arc and overload into a whole for pre-warning and alarming, cut off the power supply timely and record and display the alarming every time to facilitate inquiring the reasons of electric accidents.

The invention relates to an intelligent prefabricated substation, in particular to a set of distribution devices for the transformation and distribution field. The substation comprises a main control module, a measurement module, a display module, a switch control module, a fault recoding function module, an earthing test function module and other function modules. A single chip microcomputer is arranged on the main control module. The functional modules are controlled by the single chip microcomputer directly and work relatively independently. The measurement module collects and processes the data of the current and voltage input signals of a three-phase AC circuit through an AC sampling method, measures current, voltage, active power, reactive power, power factor, phase, frequency and electric energy parameter, stores measured data in EEPROM for an upper monitor to read and analyze for later processing. The switch control module is provided with a relay, monitors the state of switches, receives switch control commands sent by the upper monitor and makes the corresponding switch work by controlling the relay. The invention has the advantages of convenient manufacture and quick maintenance.

The invention relates to an electric vehicle capable of being charged during moving, in particular to the improvement of a charging device of the electric vehicle. The electric vehicle comprises a vehicle body, a power storage device arranged inside the vehicle body and a power extraction device connected with the power storage device, wherein the power extraction device comprises a power extraction rod and a driving device, the power extraction rod is movably arranged on the side face of the vehicle body through a support, the inner end of the power extraction rod is connected with the driving device, the driving device actuates to drive the power extraction rod to rotate around a support, and the outer end of power extraction rod is provided with a power extraction conductor which is electrically connected with the power storage device and arranged on the power extraction rod through a retractor device. The invention has the advantages of simple and reasonable structure, easiness in stretching and retracting of the power extraction rod, reliable and safe power extraction, and high automation degree, and has no influence on driving even when the vehicle is charged during traveling, thereby charging time is saved.

The invention discloses an overheating and overcurrent protection plug. The plug comprises a connecting plate and a rotating box, wherein an annular rotating groove is formed in a side wall of the connecting plate, a rotating ring slidably connected with an inner wall of the rotating groove is fixed to the side wall of the rotating box, two symmetrically-arranged power connection boxes are fixed to the side, close to the rotating box, of the connecting plate, two power connection plates connected with the interiors of the two power connection boxes correspondingly are inserted into the side, away from the rotating box, of the connecting plate in a penetrating mode, expansion grooves are formed in side walls of the two power connection plates correspondingly, and clamping blocks are connected with inner walls of the two expansion grooves through connecting springs correspondingly. The plug is advantaged in that clamping block are arranged, after the plug is powered on, the electrorheological fluid in the expansion groove is solidified and expanded, so the clamping block is pushed by the electrorheological fluid to move out of the expansion groove, the clamping block limits movementof the power connection plate, the power connection plate cannot be directly separated from the socket, stable combination of the plug and the socket is guaranteed in the power connection process, theplug is prevented from being easily separated from the socket by external force, and power supply stability is guaranteed.

The invention discloses a preparation process of a high-thermal-conductivity extruded aluminum alloy profile. The preparation process comprises the following steps of 1) extrusion, 2) refining, 3) extruding, and 4) effectiveness and the like. An online air cooling technology is adopted, the process of solid solution treatment is omitted, so that the production efficiency is improved; and optimization is carried out on various parameters, especially effective parameters in the preparation process so as to obtain an optimal scheme. According to the preparation process, the formula of the aluminum alloy is improved, the content of Mg and Si in the aluminum alloy component is reduced, Mg / Si ratio is controlled, so that the type of the alloy is in a slightly excess type of Si, and the harmful effect of V is eliminated by adding the boron adding element. On the premise of keeping the hardness, the conductivity of the product is improved. Through verification, the vickers hardness of the product can reach more than 11 Hw or above, the tensile strength is higher than 215 Mpa, the electric conductivity at 20 DEG C is higher than 56% IACS, and the heat conductivity coefficient can reach 220W / mK or above, and all technical parameters reach the world leading level.

Provided is a charging pile capable of moving along a hoisted track. The charging pile is hung on a hoisted track. The charging pile is moved along the track when charging is needed, and therefore, vehicles in parking spaces of a wide range can be charged with a small number of charging piles. By adopting the structure, electric vehicles can be charged safely, simply and with low cost.

An intelligent energy-saving socket, comprising a power output jack on the socket and a power input end for supplying power to the socket, characterized in that: the power output jack includes a main control jack and at least one controlled jack, so The socket is equipped with an intelligent control module and a control circuit. The input terminal of the intelligent control module is electrically connected to the main control jack and samples the working status of the main control jack. The intelligent control module processes and analyzes the sampling signal to generate a corresponding The control signal is sent to the control circuit, and the output terminal of the control circuit is electrically connected to the controlled socket and controls the power supply state of the controlled socket according to the control signal corresponding to the sampling signal. In the intelligent power-saving socket of the present invention, its intelligent control module can sample the working state of the main control socket in real time, and control the power supply state of the controlled socket according to the sampling signal, so as to realize high efficiency and energy saving. In addition, when the socket cuts off the power supply of the slave device, it can greatly eliminate the electromagnetic radiation generated by the slave device and protect the health of the user.

The invention relates to an ignore blind area earth leakage protective method and the circuit breaker. The circuit breaker comprises a casing, a power supply circuit, an electrical detection circuit, a control circuit and an electrical wiring board of actuator, wherein the power supply circuit is provided with a expend full wave bridge circuit with rectification branch circuit of PE input earth connection, the electrical detection circuit is provided with an zero-sequence current transformer with the secondary coin and an LED insulation condition indicator light, the control signal output foot of IC control chip of the control circuit is provided with the method of selective switch in the operation mode in order that the control circuit has normal operation electric voltage in any case, the drive operation execution device can apply the protective function of tripping operation and cutting power when the abnormal condition happens on the phase line or the center lines. The area earth leakage protective circuit breaker has real coverage earth leakage protective function, which has strong practicability.

The invention provides a frequency conversion device mounting structure of a submersible pump, belonging to the technical field of submersible pumps. According to the invention, the problems that a frequency converter is independently arranged outside the submersible pump body and thus is easily damped and damaged, and potential safety hazard in electricity utilization exists and the like in the prior art are solved. The frequency conversion device mounting structure comprises a frequency conversion motor and a pump component connected to the frequency conversion motor, wherein the frequency conversion motor comprises a motor shell with a motor cavity; a frequency conversion motor component for driving the pump component to work is mounted in the motor cavity; the motor shell is in a sealed structure; a frequency conversion device connected with the frequency conversion motor is also arranged in the motor cavity; the frequency conversion device comprises a printed circuit board fixed in the motor cavity; and the printed circuit board is provided with a frequency conversion unit for converting the frequency of power-frequency electricity and then transmitting the electricity to the frequency conversion unit of the frequency conversion motor. In the frequency conversion device mounting structure, the frequency conversion device can be mounted in the motor cavity of the submersible pump.

Provided is a current overload protection switch with a lightning protection function. According to the switch, an overcurrent protection switch is regarded as the main body, a voltage overload protection device is ingeniously arranged in the inner space of the overcurrent protection switch, a wiring lug is employed, and the wiring lug comprises an extension portion extending out of a shell and a moving motion positioned in the shell; a voltage overload protection element is formed by a varistor and a temperature-sensitive column with the insulation characteristic and attached to one side of the moving portion; and a spring is arranged at the other side of the moving portion and provides an elastic force abutted against the direction of the temperature-sensitive column. Therefore, when an instantaneous high voltage reaches the varistor, the temperature of the varistor instantaneously rises and is higher than the melting temperature of the temperature-sensitive column, the temperature-sensitive column has direct and large-area contact, more rapid and dense thermal conduction effect is achieved, the temperature-sensitive column instantaneously melts, a supporting force at the corresponding side of the spring disappears, the motion at each time is guaranteed to be successful, rapid power-off can be realized when the varistor does not rise to the high temperature, and electrical safety is realized.

The invention provides a multifunctional desk and a using method thereof, and relates to the field of desks. The desk includes a desk body and a control end; a telescopic device is arranged on one side of the desk body and is fixedly connected with one side of the desk body; a signal hydraulic press is disposed at the bottom of the telescopic device, the signal hydraulic press is fixedly connectedwith the telescopic device, and the upper end of the signal hydraulic press is connected with a plurality of hydraulic lifting rods; a safe box is connected with the interior of the telescopic device, and lifting slots are formed in both sides inside the safe box and fixedly connected with the interior of the safe box; a plurality of sliding plates are connected with the interior of the safe box,and both ends of the sliding plates are connected with signal motor gears; and a working area plate is arranged at the middle of the device body. The control end controls the signal hydraulic press,the signal motor gears, signal motors and signal transmission motors by means of signals, so office workers achieve the control over a variety of functions when the office workers sit down in front ofthe desk body. The multifunctional desk has certain intelligence, and work efficiency is gradually improved.

The invention provides high-sky pruning scissors. The high-sky pruning scissors comprise a handheld part, a connecting part, a shearing part and a driving mechanism, the shearing part comprises a fixed blade and a movable blade hinged to the fixed blade, the driving mechanism is arranged in the handheld part, the connecting part comprises a connecting rod connected between the handheld part and the fixed blade of the shearing part and a pull rod connected to the driving end of the driving mechanism and the movable blade of the shearing part, the connecting rod and the pull rod of the connecting part are both of a length adjustable structure, and by adjusting the length of the connecting rod and the pull rod, the pruning height of the high-sky pruning scissors is adjusted. Weight is distributed on the handheld part, so that the structure is light as a whole, the operation is simple, a distribution power supply line does not need to be lengthened, and electricity is safe; meanwhile, theconnecting rod and the pull rod of the connecting part are both of a length adjustable structure, and then by adjusting the length of the connecting rod and the pull rod, the pruning height of the high-sky pruning scissors is adjusted.

A remote monitoring anti-theft electric meter box comprises a box door dormant lock and a door handle. Locking is performed automatically when the door is closed. An internal door lock is unlocked through an electric actuating mechanism, and the box door pops open automatically by a spring. A plurality of groups of elongated holes are used for a meter checking window, and an 'electronic key' insertion hole is formed in the side. All-weather real-time monitoring is performed on the electric meter box through a remote control system, various operation states of the meter box are recorded completely through a built-in monitor, and a microcomputer at a management center can read various data about electric meter box states, which are cent by a data centralization repeater, in real time through the GSM / GPRS network. By means of the electric meter box, the most scientific and reasonable solution so far is provided for domestic power supply department.