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 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.

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 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 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 relates to a degradation trend prediction method of a valve-regulated lead-acid storage battery based on Gaussian process regression, and belongs to the technical field of artificial intelligence of lead-acid storage battery life prediction. According to the method, the operation characteristics of equalized charging and floating charging of the transformer substation storage batteryand the influence of equalized charging and floating charging on degradation of the storage battery are considered, and the GPR is adopted to predict the degradation trend of the storage battery. According to the method, accurate prediction of the voltage and the internal resistance of the storage battery of the transformer substation direct-current system is achieved, then the degradation trendof the storage battery is known, the method can be used for guiding operation and maintenance work of the valve-regulated lead-acid storage battery in a power grid transformer substation, and the method is undoubtedly of great significance in improving the safety and the reliability of the transformer substation.

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.

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.

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.