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212results about How to "Not easy to burn out" patented technology

Light bioreactor for culturing microalgae systematically

The invention relates to a light bioreactor for culturing microalgae systematically, which comprises an in-parallel pipe group, a control valve, a pH value sensor, a temperature sensor, a light sensor, a water mist sprayer, a liquid level alarm, a pipe pump, an air inlet pipe, an exhaust pipe, a feed pipe, a discharge pipe, a microporous pipe, a liquid storage tank, a cool and heat exchanger, a control panel, a bracket, a lighting facility and the like, wherein the pipe group and the valve are effectively connected in a close way, specific surface area is enlarged simultaneously when the volume of microalgae is enlarged during culturing, and the invention has small ground occupation, effectively uses stereo space and has sufficient air exchange, and utilization rate is increased; during culturing, the invention monitors parameters such as temperature, pH value, concentration of a culture medium, lighting intensity, and the like in real time, provides the best condition for microalgae growth and metabolism, effectively reduces culturing time, avoids danger of outside harmful creatures, and decreases production cost. The bioreactor can be used for culturing microalgae cells in a continuous or semi-continuous way and producing microalgae protein, biodiesel or aquatic baits and other products.
Owner:云南爱尔发生物技术股份有限公司

Liquid crystal display, light-emitting diode (LED) backlight and driving method thereof

The invention discloses a liquid crystal display, a light-emitting diode (LED) backlight and a driving method thereof. The LED backlight comprises a direct-current voltage input end, a booster circuit, an LED string and a constant-current driving circuit, wherein the direct-current voltage input end is used for inputting direct-current voltage; the booster circuit is used for boosting the direct-current voltage input through the direct-current voltage input end and outputting boosted direct-current voltage; the LED string comprises a plurality of series-connection LEDs and a first resistor and receives the boosted direct-current voltage from the booster circuit, and the direct-current voltage of the LED string normally emitting light is smaller than or equal to the boosted direct-current voltage output through the booster circuit; and the constant-current driving circuit is used for adjusting voltages at two ends of the first resistor so as to control current in the LED string. When the LEDs are driven to emit light, power consumption of a first metal oxide semiconductor (MOS) transistor in the constant-current driving circuit is lowered, so that power consumption of the constant-current driving circuit is reduced, the temperature is lowered, conversion efficiency of a whole driving circuit of the LED backlight is improved, and components in the constant-current driving circuit cannot be burnt out easily.
Owner:TCL CHINA STAR OPTOELECTRONICS TECH CO LTD

Intelligent thin self-temperature-limiting electric floor heating system

ActiveCN102425818AReduce lossAvoid the defect of heating when people don't need itLighting and heating apparatusSpace heating and ventilation detailsFiberCarbon fibers
The invention discloses an intelligent thin self-temperature-limiting electric floor heating system, which comprises a remote controller, a temperature control switch and heating modules, wherein the signal output end of the remote controller is connected with at least one temperature control switch through a signal transmission line; each heating module comprises a moisture-proof layer, a heat insulation layer, a superconducting heat insulation cushion layer, a carbon fiber heating body, a temperature limiter and a carbon fiber and metal lead connecting joint; the temperature control switch is respectively connected with carbon fiber and metal lead connecting joints on a plurality of heating modules through electric leads; and heat insulation filling layers are arranged among the plurality of heating modules. The system realizes progressive control, and can be separately controlled; the system is electrified for heating when used in a small area, so that the defect of heating when a user does not need heat is overcome, and energy loss is greatly reduced; and the heat loss is furthest reduced by using a heat insulation layer material. The heating modules are made of carbon fiber heating materials, so the conversion efficiency is greatly improved and the temperature is increased quickly; and because the superconducting heat cushion layer is arranged on the upper surface, the heat is quickly transferred, and the heat loss of a product is reduced.
Owner:重庆智酷热能设备有限公司

Smart fire scene escaping system and evacuating method for large-scale exhibition halls

The invention discloses a smart fire scene escaping system and evacuating method for large-scale exhibition halls. The system comprises a monitoring system for obtaining the onsite information of a fire scene; a handheld terminal and a sound-and-light indication device for guiding the escape of people; and a control terminal for receiving the data from the monitoring system and issuing escape routes to the handheld terminal. The monitoring system comprises M fire detectors, N infrared cameras, and L audio frequency acquisition cards. The handheld terminal comprises a processor pre-stored with the emergency channel map for the large-scale exhibition hall. The I / O disconnection interface of the processor is electrically connected with a positioning chip. The sound-and-light indication device comprises a sound-and-light alarming device and an audio player. Each door of the emergency channel is provided with at least one sound-and-light alarming device and one audio player. Each sound-and-light alarming device and each audio player are provided with a wireless communication module respectively. The processor is provided with a wireless communication module and a display module. The control terminal comprises a main controller and a standby controller.
Owner:TIAJIN JINGXIONG SCI & TECH ENG DEV CO LTD

Motor control circuit of garbage processor and operation control method

The invention discloses a motor control circuit of a garbage processor and an operation control method. The method comprises the steps as follows: a motor of the garbage processor is started and begins to run in a forward rotation direction; a forward and reverse rotation control module and a starting module receive a signal that the motor is in an idle state again, the starting module controls the motor to be started, and meanwhile, the forward and reverse rotation control module controls the motor to change an original rotation direction; the forward and reverse rotation control module and the starting module receive the signal that the motor is in the idle state again, the starting module controls the motor to be started, and meanwhile, the forward and reverse rotation control module controls the motor to change the rotation direction again; and a current monitoring module monitors current of the motor in real time and compares the current with a current threshold as follows: if the real-time current is greater than the current threshold, an activation signal is sent out to an unblocking module and the unblocking module is activated to unblock the motor, so that the motor normally works. By the method disclosed by the invention, the rotation direction can be changed when the motor is blocked, automatic unblocking can be carried out and the motor is prevented from being easily burnt out.
Owner:DONGGUAN JIEMEI ELECTRIC APPLIANCE

Oscillator that can swing in a "u" shape

The invention provides a wiggler capable of swinging in the shape of U, which comprises a motor, a clamping mechanism and a driving device, wherein the driving device comprises a first swing gear, a second swing gear, a swing eccentric wheel, a swing ring, a first swing rod, a second swing rod, a third swing rod, a rotating gear, a first linear bearing, a first slide block, a slide block connecting plate, a second linear bearing and a second slide block, wherein the first slide block and the second slide block can be respectively and glidingly arranged on the first linear bearing and the second linear bearing back and forth; the slide block connecting plate is fixed on the first slide block; the second linear bearing is arranged on the upper surface of the slide block connecting plate; and the clamping mechanism is fixed on the second slide block. Therefore, a gun clamping mechanism can swing in the shape of U. When the gun clamping mechanism is used for U-shaped welding and cutting, the mechanism is convenient to operate, the efficiency is higher, and the welding and cutting quality effect is better. Because the motor which rotates in one direction does not rotate clockwise and anticlockwise as the motor of a traditional wiggler, the wiggler capable of swinging in the shape of U is not easy to burn, has a longer service life and is more durable.
Owner:SHENZHEN RILAND IND

Programmable gate array testing board and programmable gate array testing system for liquid crystal display

The invention discloses a programmable gate array testing board and a programmable gate array testing system for liquid crystal display. The programmable gate array testing board is a liquid crystal display testing system matched with a programmable gate array on the basis of an ARM (Advanced RISC Machine) kernel; the programmable gate array testing board comprises a PCB (printed circuit board) testing board and a liquid crystal display mainboard installation position formed on the PCB testing board; the PCB testing board is matched with a programmable gate array matching chip and an ARM kernel chip, each input pin of the programmable gate array matching chip is connected with the ARM kernel chip, and each output pin of the programmable gate array matching chip is connected with the liquid crystal display mainboard installation position by virtue of a circuit; in addition, a short-circuit isolating circuit is arranged between the programmable gate array matching chip and the liquid crystal display mainboard installation position. The programmable gate array testing system comprises the programmable gate array testing board and a liquid crystal display module. According to the invention, the cost is low, the testing efficiency is high, the use is convenient, the compatibility is strong, and the test is safe and reliable.
Owner:GANZHOU TXO TECH CO LTD

Laser etched pump light stripper and manufacturing method thereof

The invention discloses a laser-etched pump light stripper and a manufacturing method thereof. The stripper comprises a fiber core and a fiber cladding, wherein the fiber core is wrapped by the fibercladding, and a plurality of grooves are formed on the outer surface of the fiber cladding. The manufacturing method comprises the following steps: setting a convex lens at the focusing position of the laser; focusing the laser beam on the fiber cladding through the convex lens, and etching a groove in the fiber cladding; moving the convex lens away from the focusing position, and moving the fibercladding to the next groove etching position; repeating the above two steps to etch a plurality of grooves in the fiber cladding. According to the invention, the plurality of grooves is arranged on the outer surface of the fiber cladding to form an attenuation area, so that pump light and some high-order mode stray light in the fiber cladding are stripped, and the quality of a laser beam is improved. In addition, the stripped light energy can be converted into heat energy to be taken away, so that the problem of over high temperature of the stripper is effectively solved, and the pump light stripper with good cladding light filtering effect that is unlikely to be burnt out is provided.
Owner:深圳市鹏星光电科技有限公司

Loudspeaker reliability test device

The invention discloses a loudspeaker reliability test device comprising a machine box which is internally provided with a computer system. The computer system is provided with a LabView processing module and an audio card. The loudspeaker reliability test device also comprises a test card which is arranged in the machine box and connected with the computer system. The test card is provided with multipath of test channels which are formed by audio power amplifier chips, sampling resistors and loudspeaker connecting terminals in a series-connection way. The input end of each audio power amplifier chip is connected with the output end of the audio card. The test card is also provided with a voltage and current acquisition module and a single-chip microcomputer. Two ends of each sampling resistor and each loudspeaker connecting terminal are connected with the input end of the voltage and current acquisition module. The output end of the voltage and current acquisition module is connected with an I / O of the single-chip microcomputer. The I / O of the single-chip microcomputer is also connected with a mute pin of each audio power amplifier chip. A serial port of the single-chip microcomputer is connected with the computer system. The loudspeaker reliability test device is concise in structure, convenient to operate and maintain, stable and reliable and long in the service life.
Owner:GOERTEK INC

Banknote counting machine

Disclosed is a banknote counting machine. A first driving motor and a second driving motor are respectively arranged on the left side and the right side of the banknote counting machine, wherein the first driving motor is used for driving high-speed shaft components via a first motor belt pulley, a first motor belt and a single belt pulley all positioned on the left side face of a frame; the second driving motor is used for driving banknote twisting shaft components via a second motor belt pulley, a second motor belt and a banknote twisting belt pulley all positioned on the right side face of the frame; dual belt pulleys are fixedly connected to the left sides of the high-speed shaft components; the banknote twisting shaft components are provided with one-way banknote twisting belt pulleys via one-way bearings; the one-way banknote twisting belt pulleys are positioned between the right side face of the frame and the banknote twisting belt pulley; the one-way banknote twisting belt pulleys are connected with inner pulleys of the dual belt pulleys via driving belts; outer pulleys of the dual belt pulleys are connected with a driving belt pulley group via the driving belts; and the driving belt pulley group is connected with banknote output belt pulley groups via the driving belts. In the invention, owing to the two driving motors, the banknote counting machine can work more stably and has longer service life.
Owner:上海灵岳电子设备有限公司

Voltage-multiplying-type high-voltage rectifying oil tank

InactiveCN103052248ANo more sparkingLess soft raysX-ray apparatusCapacitanceX-ray
The invention discloses a voltage-multiplying-type high-voltage rectifying oil tank, which comprises an oil tank body, a tank cover, a high-frequency and high-voltage transformer, a filament transformer, a voltage sampling circuit, a positive end voltage multiplying and rectifying circuit and a negative end voltage multiplying and rectifying circuit, wherein the tank cover is arranged above the oil tank body and seals the oil tank body; the high-frequency and high-voltage transformer is fixedly arranged on a support below the tank cover; the filament transformer is fixedly arranged on the support below the tank cover; the voltage sampling circuit is arranged on an epoxy board and the epoxy board is fixedly connected with the support; and the positive end voltage multiplying and rectifying circuit and the negative end voltage multiplying and rectifying circuit are fixedly installed at the bottom of the tank cover with the support, and high-voltage filter capacitors are arranged in the positive end voltage multiplying and rectifying circuit and the negative end voltage multiplying and rectifying circuit. A sealing ring is arranged at the connected position of the oil tank body and the tank body in a surrounding way, an insulating plate is installed on the inner walls of the oil tank body and the entire support is isolated from the oil tank body; and a positive high-voltage socket and a negative high-voltage socket which are respectively used for outputting voltage to two bulb tubes are arranged on the top panel of the tank cover. The oil tank is used as a part of a high-frequency and high-voltage generator and is a link for high-voltage generation, the output high-voltage ripples of the oil tank are low and the quality of X-rays emitted by the bulb tubes is improved.
Owner:NANNING YIJU MEDICAL ELECTRONICS

Double-bed double-tube high-frequency high-voltage oil tank

The invention relates to a double-bed double-tube high-frequency high-voltage oil tank for providing a steady high-voltage direct-current power supply for X-ray medical equipment and the like. A bracket is fixedly arranged below a tank cap of the oil tank; a high-frequency high-voltage transformer is arranged on a bottom plate of the bracket; filament transformers are arranged on the side wall ofthe bracket; a voltage sampling module and a rectifying silicon stack are arranged on an epoxy resin board fixed with the bracket; a high-voltage power switching valve is arranged on the tank cap; the inner wall of the tank body is provided with an insulation board; the whole bracket is isolated from the tank body; and two pair of positive and negative high-voltage sockets, an oil-filled hole seal head, a short connecting pillar, two aviation sockets and a voltage input end are arranged on the face board on the top of the tank cap. As the parts of the oil tank have a compact structure, the positive and negative high voltages are separated to the greatest extent on the space layout, so that the size of the oil tank is effectively reduced and the firing of the positive and negative high voltages is avoided at the same time and the problems that the oil tank is easy to fire, the output high-frequency high voltage is unstable, the ripple wave is large and the size is too large are solved.The double-bed double-tube high-frequency high-pressure oil tank has very high security and stability.
Owner:广西道纪医疗设备有限公司

Vehicle-to-vehicle communication system based on LED vehicle lamp

The invention relates to the field of internet of vehicles and intelligent driving, in particular to a vehicle-to-vehicle communication system based on an LED vehicle lamp. The vehicle-to-vehicle communication system comprises a CAN transceiver, a controller, an LED driver, the LED vehicle lamp, an optical receiver and a photoelectric converter. The CAN transceiver of a vehicle at the transmittingend resolves the vehicle speed, braking and steering information of a CAN message, the vehicle speed, braking and steering information of the CAN message is sent to the controller to be encoded to bea message, and the message controls the LED driver to drive the LED vehicle lamp to flicker through high and low levels; and the photoelectric converter of the vehicle at the receiving end converts an optical signal received by the optical receiver and including the vehicle speed, braking and steering information of the vehicle at the transmitting end to a level signal, the controller decodes thelevel signal, and the vehicle speed, braking and steering information of the vehicle are resolved, and then packed to be a CAN message to be sent to a vehicle body CAN bus of the vehicle at the receiving end through the CAN transceiver. According to the vehicle-to-vehicle communication system, vehicle-to-vehicle two-way transmission of a running state of the vehicle through the optical signal isachieved, data is accurate, and the practicability is high.
Owner:CHANGZHOU XINGYU AUTOMOTIVE LIGHTING SYST

Energy-saving constant-temperature power distribution cabinet

The invention discloses an energy-saving constant-temperature power distribution cabinet. The cabinet comprises a cabinet body and an industrial air conditioner, wherein the cabinet body consists of a top plate, a bottom plate and side plates, a cabinet door is arranged on the cabinet body and connected onto the cabinet body through hinges, outer sides of the cabinet body and the cabinet door are coated with heat-insulation layers, flocked layers are arranged on inner walls of the cabinet body and the cabinet door, and a sealing gasket is arranged in a position where the cabinet door and the cabinet body are attached to each other and is formed by splicing multiple sections of silica gel adopting rectangular structures; a drain type power distribution cabinet dehumidifier, a digital temperature and humidity monitor and LED lamps are arranged in the cabinet body, and the industrial air conditioner is arranged behind an outer case of the cabinet body. The cabinet cannot break down and even be burnt down easily, is high in safety performance and simple in structure and is not required to be replaced frequently, the production cost is reduced, structures of existing power distribution cabinets are changed, defects of the existing power distribution cabinets are overcome, and normal and safe operation of electrical equipment in the power distribution cabinet is guaranteed.
Owner:STATE GRID CORP OF CHINA +2

Transformer for induction hardening

The invention provides a transformer for induction hardening. A casing of the transformer is a cylindrical copper casing, a circular primary coil is arranged in the casing, both ends of the casing are respectively connected with a first copper cover plate and a second copper cover plate, the first copper cover plate is provided with a water joint, the first copper cover plate and the second copper cover plate are connected together by a center mandrel, the center mandrel is connected with the second copper cover plate in an insulation way, the second copper cover plate and the center mandrel are respectively and conductively connected with two input electrodes, the casing, the first copper cover plate, the center mandrel, the second copper cover plate and the two input electrodes form a secondary coil together, the primary coil is insulated from the secondary coil, the water joint is also used as a cable input end of the primary coil, and an integral cavity of the casing is a cooling chamber. The transformer has the advantages that the primary coil and the secondary coil are arranged in a circular surrounding way, the integral transformer is cooled by feeding water to the interior of the transformer, the size of the transformer is small, the required installation space is small, the cooling effect is good, impurities accumulated in the transformer can be easily cleaned, and the service life is long.
Owner:SHIYAN HENGJIN INDUCTION TECH CO LTD
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