44results about How to "Reduce cooling burden" patented technology

The invention provides a wind power station whole low voltage ride through (LVRT) system. The system comprises at least one wind turbine and at least one wind turbine set-up transformer which are connected in series at a wind power station side and at least one main step-up transformer at a power grid side. The system further comprises a plurality of current collection busses and a power grid bus, wherein each current collection bus accesses at least one wind turbine and at least one wind turbine step-up transformer which are connected in series; the current collection busses are divided into at least one group, and each group comprises at least one current collection bus; the power grid bus is used for accessing the main step-up transformer at the power grid side; and each group of the current collection busses are respectively connected to the power grid bus through an LVRT device. The invention can achieve the wind power station whole LVRT by using fewer LVRT devices.

The invention discloses an LED daylight lamp device capable of directly replacing a fluorescent lamp, relating to the technical field of lighting. The LED daylight lamp device structurally comprises an LED light tube and an external LED power supply, wherein two ends of the LED light tube are respectively provided with an end cover in a connecting manner, inner ends of two terminals arranged on the same end cover are in short circuit through a conducing piece, the light tube is provided with a DC input end, the external LED power supply is provided with a starter interface terminal and a DC output end, and the DC output end is detachably and electrically connected with the DC input end through a power wire. The LED power supply can be directly installed on a place of an original starter and matched with an original starter interface, the LED light tube can be directly installed on a place of an original fluorescent lamp, thus any circuit is not changed, the LED power supply and the LED light tube can be rapidly replaced, and the LED daylight lamp device is convenient and practical; and the LED power supply is arranged on the place of the original starter of a lamp panel, because the LED power supply is arranged externally, the LED daylight lamp device has the characteristics of easiness in passing the safety, good quality of emergent light, and the like.

The invention relates to the field of display technology, particularly to a backlight module and a display device. The backlight module comprises a light guide plate and PCB (printed circuit board) substrates on both sides of the light guide plate; one side of each PCB substrate, which faces towards the light guide plate, is provided with a plurality of light source devices; one side of the light guide plate, which faces towards the PCB substrates, is provided with a plurality of slots for accommodating the light source devices; the two opposite inner walls of every slot are provided with a plurality of protrusions. According to the backlight module and the display device, one side of the light guide plate is provided with the plurality of slots for accommodating the light source devices, and the two opposite inner walls of every groove are provided with the plurality of protrusions, so that light emitted from the side walls of the light source devices can be utilized to the maximum degree, and the light energy utilization rate can be improved, and further achieving required light intensity through fewer light source devices; energy conservation can be achieved, meanwhile, the heat dissipating burden of the light source devices can be effectively reduced, and further the internal temperature of the backlight module can be reduced, and the service life of products can be prolonged.

The invention discloses a novel hybrid refrigeration cycle system. The novel hybrid refrigeration cycle system comprises an evaporator, an output end of the evaporator is divided into two branches, one branch is connected with an input end of a compressor while the other branch is connected with an input end of a booster, an output end of the compressor is connected with an input end of a condenser A, an output end of the condenser A is connected with an input end of the evaporator, an output end of the booster is connected with a secondary flow inlet of an ejector, and an output end of the ejector is connected with an input end of a condenser B. An output end of the condenser B is divided into two branches, one branch is connected with the input end of the evaporator, and the other branch sequentially passes through a pump and a generator to be connected with a primary flow inlet of the ejector. Compression type refrigeration cycle and ejection type refrigeration cycle of a traditional automobile air conditioner are in parallel operation to share one evaporator, a novel hybrid refrigeration cycle way is provided to take advantages of the ejection type refrigeration technology, and the problems caused by single use of a traditional ejector are solved by adoption of the compressor.

The invention discloses a portable power source charging method, a power source adapter and a portable power source. The portable power source charging method is applied to the power source adapter, and comprises the steps of: communicating with the connected portable power source by a charging handshake protocol, and establishing a communication connection with the portable power source; receiving a target charging parameter sent by the portable power source and required for charging, wherein the target charging parameter is related to the series-parallel mode of a battery pack inside the portable power source; and adjusting a charging parameter for the portable power source according to the target charging parameter. By adopting the method, the charging parameter of electric energy output by the power source adapter can be matched with the charging demand of the portable power source, the voltage conversion process of the portable power source on the charged electric energy is reduced, and the purposes of reducing the charging loss of the portable power source and reducing the heat dissipation burden of the portable power source are fulfilled.

The invention discloses a light-emitting diode (LED) daylight lamp capable of directly replacing a fluorescent lamp, and relates to the technical field of lighting. The LED daylight lamp comprises a tube, end covers, and an external LED power supply; the end covers are arranged on two end parts of the tube; the external LED power supply is electrically connected with the tube; the end covers are respectively provided with two terminals; inner ends of two terminals on the same end cover are in short circuit through a conducive element; and the tube is provided with a direct current (DC) input end. Compared with the prior art, the LED daylight lamp can be directly arranged at the position of the original fluorescent lamp, circuits are not required to be changed, the change can be easily and quickly carried out, and the LED daylight lamp is convenient and practical; the power supply is externally arranged, so that no glare, no shadow and uniform and mild light transmission can be realized; when one end is electrified, the other end is absolutely safe when touched by a hand; the heat of the power supply is dissipated outside the light, the radiating burden of the tube is lightened and the service life of the tube is prolonged; and reclamation cost can be saved and the safety standard is easily met.

The invention discloses a speed regulating method for a fan. A BIOS is adopted to detect the operating status of a BMC.The operation of speed regulating for the fanis continued by using the BMC when the operating status of the BMC is normal, and the speed regulating for the target fan is completed by using the BIOS when the operating status of the BMC is abnormal. Therefore,an additional single chip microcomputer can be omitted and heat dissipation burdens of a device can be reduced, and furthermore, when the operating status of the BMC is abnormal, the BIOS can still be used for completing the speed regulating for the fan and the heat dissipation performance of the device is effectively ensured. The invention further discloses a speed regulating system and device for the fan and a computer readable storage medium. The technical effects of the speed regulating method for the fan can also be achieved by the speed regulating system and device for the fan and the computer readable storagemedium.

The invention relates to the technical field of fuel cells, in particular to a fuel cell waste heat recovery system and a vehicle, the system comprises a cold source side, a heat source side and a thermoelectric conversion module located between the cold source side and the heat source side; the fuel cell exchanges heat with the heat source side; when the temperature of the fuel cell is greater than a preset value, the thermoelectric conversion module converts heat energy into electric energy; when the temperature of the fuel cell is smaller than a preset value, the thermoelectric conversion module is reversely electrified to heat the heat source side; the thermoelectric conversion module is adopted, low-grade heat energy is directly converted into electric energy through the Seebeck effect of a semiconductor thermoelectric power generation material, the heat dissipation burden of a heat dissipation system can be relieved, the electric energy can be reused by other vehicle-mounted electric appliances, the operation efficiency of the system is improved, and the purpose of saving energy is achieved; and meanwhile, the electric pile can be heated in the reverse direction under the electrifying condition, the cold start performance of the system is improved, the fuel cell does not need to be heated through PTC, and the system cost is effectively reduced.

The invention relates to a tail gas recovery system and process in naphthalene flaking and packaging processes. The system comprises a bag-type dust collector, a tail gas fan, a sublimated naphthalene catcher and a naphthalene melting tank; a set of cloth bag dust removal equipment is shared in the naphthalene flaking and packaging processes; tail gas of a rotary drum crystallizer firstly enters the sublimation naphthalene catcher to be fully cooled before entering the bag-type dust collector, so that the naphthalene steam amount in the tail gas is greatly reduced, and the tail gas is finally cooled and dedusted through the bag-type dust collector to realize up-to-standard emission; and naphthalene dust collected by the bag-type dust collector is fed into the naphthalene melting tank, is heated and melted by liquid refined naphthalene and then is fed back to the rotary drum crystallizer for flaking.

The invention discloses an ultrasonic welding machine with a temperature shock resistance function. The ultrasonic welding machine comprises a welding head, a servo motor driving mechanism, a support, a base and a rack. The support is made of carbon steel; the base is used for bearing a product and is provided with a containing cavity for containing the product to be welded; the rack is used for bearing the support and the base; the rack comprises a working table in contact with the base and four supporting legs which are used for supporting the working table and located on the lower portion of the working table; and the rack is of a hollow structure, the hollow supporting legs and the hollow working table are connected into a cavity, one supporting leg is connected with a first water storage tank through a water inlet pipe, and the other supporting leg is connected with a second water storage tank through a water outlet pipe. The mounting height of the first water storage tank is larger than that of the second water storage tank, and one side wall of the first water storage tank and one side wall of the second water storage tank are transparent and provided with scales; and the top face of the first water storage tank and the top face of the second water storage tank are each provided with a hand hole. The ultrasonic welding machine is simple in whole structure, high in practicability, long in service life and easy to use and popularize.

A high-precision printed circuit board is disclosed. The invention relates to the circuit board technology field. The printed circuit board comprises a circuit board body. The circuit board body is formed by a circuit layer, an insulating layer and a heat conduction layer. A lower portion of the circuit layer is provided with the insulating layer. A lower portion of the insulating layer is provided with the heat conduction layer. An internal portion of the insulating layer is provided with several cooling fins. The cooling fins are provided with through holes used for placing electronic component pins. The printed circuit board possesses high precision and simultaneously has a good heat dissipation function. Faults brought by heating after the circuit board is operated are reduced and applicability is high.

The invention relates to the field of cascade refrigeration, and provides a four-stage cascade refrigerating device with a multi-stage water cooler. The four-stage cascade refrigerating device cascades by four pieces of relatively independent refrigerating circulation. A water cooler is independently arranged on a second-stage compressor high-temperature gas exhaust pipeline, a third-stage compressor high-temperature gas exhaust pipeline and a fourth-level compressor high-temperature gas exhaust pipeline of the cascade refrigerating circulation, cheap cooling water which can be easily obtainedand is out of a system is introduced, and therefore, a refrigeration quantity and refrigeration efficiency can be effectively improved. Meanwhile, a precooling heat regenerator and an undercooling heat regenerator are configured in a second-stage high-temperature pipeline, a third-stage high-temperature pipeline and a fourth-stage high-temperature pipeline of the cascade refrigerating circulation, so that refrigeration efficiency can be improved, and the safe operation of a compressor can be guaranteed.

The invention relates to an LED array high- and low-beam bifunctional module system and belongs to the technical field of LED automotive lighting techniques. The LED array high- and low-beam bifunctional module system comprises a radiator, an LED source PCB (printed circuit board), a primary optical element, a cut-off line retainer, a lens support and a lens. The primary optical element in the system can provide reshaping and homogenizing for LED source array high and low beams; the overall structure of the system is simplified; module assembly is facilitated; optical energy utilization rate is increased for the system; therefore, the system has less burden of heat dissipation.

The invention discloses a microwave adsorption type refrigeration system and method. The system comprises an adsorption bed A, an adsorption bed B, a condenser, an evaporator and a cooler; the condenser and the evaporator are connected through a pipeline; the adsorption bed A is connected with the condenser and the evaporator through valves respectively, the adsorption bed B is connected with thecondenser and the evaporator through valves respectively, and a circulating loop is formed by connecting the adsorption bed A with the cooler through a pipeline; a circulating loop is formed by connecting the adsorption bed B with the cooler through a pipeline; microwave sources are arranged in the adsorption bed A and the adsorption bed B respectively; an adsorption working medium pair in the adsorption beds is heated by emitting microwaves through the microwave sources. According to the system, the microwaves serve as a driving heat source, and because microwave heating has the characteristics of selective heating and rapid heating, the adsorption working medium pair can be rapidly heated to a required temperature; the desorption speed is increased, so that the cycle period is shortened,and the refrigerating capacity and the refrigerating efficiency are improved.

The invention discloses a solar battery with a macromolecular multilayer film and a manufacturing method thereof. The solar battery comprises the solar battery and the macromolecular multilayer film, wherein the macromolecular multilayer film is arranged on the solar battery and is provided with at least two macromolecular optical interference layers with two different refractive indexes; therefore the macromolecular multilayer film can reflect sunshine waveband which is not suitable to be absorbed by the solar battery, and allows the suitable sunshine wave band to pass; the solar battery only absorbs the sunshine wave band which are suitable for energy gap thereof, and the reflected sunlight or the light which is not absorbed by the solar battery also can be used for a subsequent illumination system, a power generation system, and a heating system. Therefore, the solar battery is prevented from generating excess heat to raise temperature, can reduce the heat dissipation load of a cooling system, and effectively maintain the photoelectric conversion efficiency of the solar battery.

The present invention discloses an oil pump controller which consists of a signal collecting circuit, a signal transformation circuit and a protective circuit and is characterized in that the signal transformation circuit consists of a gate drive circuit and an MOS pipe amplifying circuit, wherein, the signal collecting circuit obtains an oil pump start instruction and transports the oil pump start instruction to the gate drive circuit; the gate drive circuit transforms the oil pump start instruction and sends the oil pump start instruction to the MOS pipe amplifying circuit; the MOS pipe amplifying circuit amplifies the oil pump start instruction and generates a drive signal; the MOS pipe amplifying circuit is provided with a switch pipe, the drain electrode of which outputs the oil pumpstart instruction to the protective circuit. The oil pump controller is also provided with a temperature protective circuit, an overcurrent protective circuit and an non-load protective circuit. The oil pump controller has the obvious effects of reducing the cost, low heat, reducing surge current, increasing various kinds of safety protection measures and providing the oil pump safe operation with effective safeguard. The oil pump controller reduces ECU head dissipation load and improves ECU working efficiency.

The invention relates to the technical field of aerospace craft aerodynamic heat ground simulation test devices, in particular to an arc heater rear end cover. The arc heater rear end cover comprises a base body, an auxiliary air channel and a cooling water channel. The base body is of an integrated sheet-shaped disc structure. The auxiliary air channel comprises a plurality of branch air channels, each branch air channel is spirally arranged around the axis, and the branch air channels penetrate through the two end faces of the base body. The cooling water channel is arranged in the base body in a back-to-back disc shape and distributed between the two end faces of the base body. The branch air channels enable cold air injected by the auxiliary air channel to be the same as or similar to the rotating direction of an arc, the auxiliary swirl performance can be improved, the rotating speed of the arc is increased, the residence time of the single-point arc on the inner wall face of an electrode is shortened, and the cooling burden of a heater electrode is relieved. High-pressure cooling water cools the surface of the heated side of the base body through the back-to-back disc-shaped cooling water channel, burning loss of the wall face is reduced, and the cooling performance of the rear end cover is improved.

The invention belongs to the technical field of lighting equipment, in particular to industrial and mining lighting equipment. The industrial and mining lighting equipment comprises a light-emitting module, a radiator, a power source and a power source box. The light-emitting module is arranged on the bottom face of the radiator, the power source box is installed above the radiator in a suspendedmode through an installation piece, a plurality of heat dissipation holes are formed in the side wall of the power source box, and the power source is installed in the power source box and electrically connected with the light-emitting module. Due to the fact that the plurality of heat dissipation holes are formed in the power source box, heat generated by the power source can be dissipated from the heat dissipation holes, on the premise that heat dissipation of the power source is guaranteed, the heat dissipation burden of the radiator is reduced, the heat dissipation requirements of the light-emitting module are effectively guaranteed, the service life of the industrial and mining lighting equipment is remarkably prolonged, and the light attenuation of the industrial and mining lightingequipment is remarkably reduced. The power source is separated from the radiator through the blocking effect of the wall surface of the power source box and the assembly gap, thereby guaranteeing thatthe radiator can timely dissipate heat, enabling the power source box to avoid the impact on the heat dissipation performance of the radiator, and enriching the multifunctionality of the power sourcebox.

The invention discloses a bearing of an electric fan driving motor and relates to the technical field of the bearings of the electric fan driving motors. The bearing comprises the electric fan drivingmotor, a rotary shaft, an electric fan driving motor shell and the like; an external bearing ring is fixed on an inner wall of the electric fan driving motor shell through a connecting block; a second limiting ring has a fixing effect on a hollow annular pipe; a limiting bulge has a limiting effect on an inner-layer bearing fixing ring and a rotary shaft penetrates into an inner-layer bearing ring; when the rotary shaft rotates, the inner-layer bearing ring is driven to rotate, and rolling rubbing is formed between the inner-layer bearing ring and a ball; the rubbing heat generated by the rolling rubbing is less, and cooling water in the second limiting ring has a relatively cooling effect on the hollow annular pipe so that parts, which are in contact with the hollow annular pipe to generate heat by rubbing, are certainly cooled; the heat dissipation load of the electric fan driving motor is effectively alleviated so that the service life of the electric fan driving motor is prolonged.

The invention discloses a speed regulating method for a fan. A BIOS is adopted to detect the operating status of a BMC.The operation of speed regulating for the fanis continued by using the BMC when the operating status of the BMC is normal, and the speed regulating for the target fan is completed by using the BIOS when the operating status of the BMC is abnormal. Therefore,an additional single chip microcomputer can be omitted and heat dissipation burdens of a device can be reduced, and furthermore, when the operating status of the BMC is abnormal, the BIOS can still be used for completing the speed regulating for the fan and the heat dissipation performance of the device is effectively ensured. The invention further discloses a speed regulating system and device for the fan and a computer readable storage medium. The technical effects of the speed regulating method for the fan can also be achieved by the speed regulating system and device for the fan and the computer readable storagemedium.

The invention discloses unmanned aerial vehicle equipment and a wireless charging device thereof.The wireless charging device comprises at least two charging panels, any one charging panel is used for being rotationally connected to an unmanned aerial vehicle body, and a charging coil is arranged in any one charging panel; the charging coil is used for forming a wireless charging loop with the charging base so as to charge the unmanned aerial vehicle main body; by rotating the at least two charging panels, the at least two charging panels are unfolded towards the outer side, so that the charging coil and the charging base form a wireless charging loop. According to the wireless charging device, the charging power and the charging efficiency can be improved, the problem that the service life of a battery is affected by low charging power and charging heat loss of an existing product can be effectively solved, meanwhile, the landing stability and precision of the unmanned aerial vehicle body can be improved, the product cost can be reduced, and the product competitiveness can be improved.

The invention relates to a compressor air suction structure, a compressor and refrigeration equipment. The compressor air suction structure comprises an air suction pipe, an inner cylinder, a sealingring and a heat insulation filling part, wherein the outer side wall of the first end of the inner cylinder is connected with the inner side wall of the air suction pipe in a buckled mode; the sealingring is arranged between the outer side wall of the second end of the inner cylinder and the inner side wall of the air suction pipe; and the heat insulation filling part is arranged in a space formed by the sealing ring, the air suction pipe and the inner cylinder. According to the compressor air suction structure provided by the invention, an original air suction pipe with an independent pipe type structure is changed into a composite structure with the inner cylinder and a heat insulation layer, and heat on a compressor shell is isolated on an outer pipe of the air suction pipe through thecomposite structure with the heat insulation layer at a certain length, so that the temperature of the inner cylinder of the air suction pipe is low, gas entering the compressor through the inner cylinder is prevented from being heated, the refrigeration burden of the compressor is effectively relieved, and the refrigeration efficiency of the compressor is improved.

The invention relates to an integrated display unit of a color LED display screen and a manufacture method thereof. The integrated display unit board of the color LED display screen comprises an LED display module and a surface cover base plate, wherein the positions of the surface cover base plate, which correspond to LED wafers of the LED display module, are provided with light outlet holes; a drive IC (integrated circuit) is welded on a drive circuit board, the back surface of a circuit board is connected with the drive circuit board through pin headers and female headers, and the LED wafers are fixed on the front surface of the circuit board; the side wall of every light outlet hole of the surface cover base plate is provided with a high-reflectance diffuse-reflection surface; and the surface cover base plate is fixed on the circuit board, and the light outlet holes of the surface cover base plate are filled with transparent colloid. Due to the high-reflectance diffuse-reflection surfaces of the side walls of the light outlet holes of the surface cover base plate, light reaching the sidewalls of the light outlet holes can be subjected to the diffuse-reflection dodging to significantly improve the light emitting uniformity of LEDs which have three colors of red, green and blue, the light energy usage rate is increased, and the heat dissipation burden is reduced. The integrated display unit board of the color LED display screen has the advantages of large visual angle, low light loss and the like.

The invention discloses a large-scale server cabinet and a thermal control system comprising the large-scale server cabinet. The large-scale server cabinet comprises a cabinet; the cabinet comprises acabinet body, a leakage-free integrated circulating pipe network, a sealing partition plate and a server; the server is a server adopting a heat pipe for heat dissipation; heat of the server is conducted out through at least one heat pipe; the cabinet body of the cabinet is divided into two independent spaces by the sealing partition plate; the two independent spaces are used for containing the server and the leakage-free integrated circulating pipe network respectively. A cooling fan is omitted, the cabinet is silent during heat dissipation; the heat dissipation efficiency is high; long-distance heat dissipation can be achieved; the indoor heat dissipation burden of a machine room is relieved; and therefore, the purposes of energy conservation and emission reduction are achieved.

The invention provides a power supply adjusting circuit, an adjustable power supply system and a method thereof. The adjustable power supply system comprises a power supply module, a device power supply and a control circuit. The device power supply executes power supply operation according to the working voltage and provides a power supply for a device under test (DUT). The control circuit outputs an adjusting signal to the power supply module according to the power utilization condition of the device to be tested. The power supply module generates a working voltage according to the adjusting signal, and enables a first power consumption generated by a power supply of the device to be smaller than a preset power. Therefore, the device power supply can provide high voltage and high current output for the to-be-tested device.

The invention discloses an efficient cooling system for a mixed rubber sheet. The system comprises a water cooling device, an air cooling device, a heat energy comprehensive utilization device and a rubber sheet conveying belt. A separant dip-coating chamber, a drying device and a transition chamber are sequentially connected between the water cooling device and the air cooling device, and the inlet end of the heat energy comprehensive utilization device is connected with the water cooling device and the air cooling device through pipelines. The outlet end of the heat energy comprehensive utilization device is connected with the drying device. A water cooling and air cooling dual-combined mode is adopted for cooling the rubber sheet, water cooling can cool the rubber sheet in advance, a large number of volatile substances are removed, the cooling burden during air cooling is reduced, the three-dimensional progressive step-by-step cooling air duct design is adopted for air cooling, the air feeding amount of fresh air is effectively reduced, and subsequent treatment burden of cooling air is relieved. The heat energy comprehensive utilization device is designed, heat of the cooling air and heat of cooling water can be comprehensively recycled, and energy conservation and emission reduction are achieved.

An LED daylight lamp device capable of directly replacing a fluorescent lamp comprises an LED lamp tube (1) and an external LED power supply (2). Two ends of the LED lamp tube (1) are connected to end covers (3) respectively. Inner ends of two terminals (4) disposed in the same end cover (3) are mutually shorted through a conductive member (5). A DC input end (6) is further disposed on the LED lamp tube (1). A starter interface terminal (7) and a DC output end (8) are disposed on the external LED power supply (2). The DC output end (8) is electrically connected to the DC input end (6) in a removable manner through a power line (9). The external LED power supply (2) can be directly mounted at the position of the original starter, and fit an interface of the original starter. The LED lamp tube (1) can be directly mounted at the position of the original fluorescent lamp. Therefore, the LED power supply (2) and the LED lamp tube (1) can be fast replaced without changing any circuit. In addition, as the LED power supply (2) is externally provided, the LED daylight lamp device easily meets the safety regulations and standards, and the light quality is high.

The invention discloses an LED lamp tube comprising an upper cover, an LED base plate, a heat radiator, a power supply and a lamp cap; the LED base plate is installed between the upper cover and the heat radiator; the lamp cap is installed at two ends of the LED lamp tube; the LED base plate clings to the heat radiator and the LED base and the heat radiator are installed together; the cross section of the upper cover is a segment of more than 180 DEG; the cross section of the heat radiator is a segment of less than 180 DEG; and the cross sections of the upper cover and the heat radiator form an entire circle. In the LED lamp tube provided by the invention, the LED base plate is tightly connected with the heat radiator, and no air blockage exists between the LED base plate and the heat radiator, therefore, the heat radiation efficiency is greatly increased; the power supply is arranged at two ends of the LED lamp tube, thus, the heat of the power supply is prevented from entering the LED lamp tube, and the heat radiation load of the heat radiator is lowered, and the running reliability of the LED lamp tube is improved; and the transmitting angle of the upper cover exceeds 180 DEG, therefore, a better lighting effect is obtained.