494results about How to "Play the role of heat dissipation" patented technology

The invention discloses an LED light bulb, which comprises an LED, a base and a lampshade on the base, a reflector is arranged inside the lampshade, a layer of heat dissipation shell is arranged on the inner side of the reflector, and the bottom of the heat dissipation shell is fixedly connected with the base. There is an opening on the top to form a heat dissipation channel; there are at least two LEDs, which are fixed to the bottom of the heat dissipation shell through a heat dissipation plate, and the LEDs are evenly distributed circumferentially between the lampshade and the reflector; the lower side wall of the base is provided with There is at least one vent, and the vent communicates with the heat dissipation channel. The invention has excellent heat dissipation effect and greatly improves the service life of the bulb.

The invention relates to a single-grade direct-driven boost centrifugal air compressor of a vehicle fuel cell engine. The air compressor is driven to rotate through a motor, and comprises a stator, a main shaft, a rotor fixed at the middle part of the main shaft, and an impeller provided with a volute at one end, fixed in the volute and connected with one end of the main shaft; a drive drives the rotor of the motor to rotate at ultrahigh speed; and the two ends of the main shaft are supported through simple support beam support structures. Compared with the prior art, the air compressor adopts an intake boost mode of directly driving the centrifugal impeller by using the high-power motor at the ultrahigh speed, adopts an integral design of an efficient permanent magnet synchronous motor, an oil-free lubrication air foil dynamic pressure bearing and a rotor-main shaft-impeller structure, is small in impeller diameter, is simple and compact in whole structure, is small in size, is light in weight, is convenient for installation and disassembly, can satisfy the air supply use requirement of a fuel cell engine for a traditional full-condition vehicle, and improves the volume ratio power of the fuel cell engine under the condition of not increasing the size of the fuel cell engine.

The invention relates to the field of heat dissipation, in particular to a 5G base station heat dissipation system based on big data processing, which comprises an antenna shell, a fixing mechanism, an air inlet mechanism, a heat dissipation mechanism, a drainage mechanism, a placement mechanism, a locking mechanism and an observation structure, the antenna shell is beneficial to placement and protection of the transmitting equipment; under the action of the placing mechanism; the launching equipment can be conveniently fixed; under the action of the locking mechanism; the transmitting equipment can be conveniently put into and taken out of the antenna shell; under the action of the heat dissipation mechanism; absorption of a large amount of heat generated by the transmitting equipment isfacilitated; under the action of the air inlet mechanism; the air inlet structure is arranged in the antenna shell, so that cold air dissipates heat of the heat dissipation mechanism, heat is led out,heat dissipation or rainwater flowing into the antenna shell from the outside can be drained under the action of the drainage mechanism, the air inlet amount of the air inlet structure can be adjusted according to the temperature change through the temperature change of the antenna shell, timely heat dissipation of equipment can be guaranteed, and normal use of the equipment is guaranteed.

The invention relates to the technical field of LED lighting equipment, and discloses an LED ceiling lamp, which includes a lamp holder, a lampshade and a PCB board. The top of the lamp holder is provided with a groove, and one side of the groove is provided with a The outer surface of the spacer is provided with a through hole, the bottom of the lamp holder is provided with a motor, the output end of the motor is fixedly connected with a rotating rod, the top of the rotating rod is fixedly connected with a fan blade, and the inside of the lamp holder is provided with a liquid cavity , the bottom of the lamp holder is provided with a heat conduction rod. In the present invention, the pin, the first magnet, the second magnet, the clamping groove, the clamping hole, the pull rod, the spring and the clamping block play a role in facilitating disassembly of the device, and the lamp holder and the lampshade are connected by the first magnet and the second clamping block. The flexible connection of the magnet ensures that there is no gap between the lamp holder and the lampshade, prevents the normal lighting of the device from being affected by the entry of dust and insects, and facilitates the disassembly and cleaning of the lamp holder and lampshade.

The invention discloses an intelligent drawer cabinet used for an electric power system in the technical field of electrical equipment. The intelligent drawer cabinet includes a cabinet body, drawer units are inserted in the surface of the cabinet body, the left and right sides of the top of the cabinet body are symmetrically equipped with fixed plates, the top of the right side of the cabinet body is equipped with an alarm, and the top of the surface of the cabinet body is equipped with a display screen. According to the intelligent drawer cabinet used for the electric power system proposed by the invention, a temperature sensor, a humidity sensor, an electric field inductor and a magnetic field inductor are installed in the inner cavity of each drawer unit, and are used for detecting data of temperature, humidity, electric field and magnetic field in each drawer unit respectively, when detected data shows harm to safety of operating personnel, an alarm gives an alarm, positioning devices are arranged between the drawer units and the cabinet body, the problem of random sliding of the drawer unit when the drawer unit is opened is solved, the operation of workers is facilitated, and the intelligent drawer cabinet used for the electric power system is convenient to operate, and high in safety.

An elastic vehicle tyre with a cavity (11) enclosed by a tread strip (2) supporting the tread (3) and sidewalls (4, 4.1) adjacent to this on both sides shows a foam insert (9) connected to the inside (10) of the tread strip (2). The side walls each carry a bead (5, 5.1) disposed at the free end to fit around the flange (8, 8.1) of the rim (6) of wheel (7). The foam insert (9) partly fills the cavity (11) and serves a denoising function, in particular in a frequency range below 400 Hz.

The invention provides a hydrodynamic pressure suspension double-flow pump, relating to an impeller ultra-small pump which has no external mechanism axis and is driven magnetically. The pump comprises two mutually separate flowing channels; each flowing channel consists of an inlet, an impeller, a pressure water chamber and an outlet; and the geometrical parameters of the flowing channels are the same or different; a stator of the pump is embedded in a pump shell, a permanent magnet is embedded in a rotor; and the stator and the permanent magnet are arranged opposite along a radial direction; a radial gap is formed between the internal surface of the pump shell and the external surface of the rotor, so that liquid hydrodynamic support for restricting axial movement is formed during normal operation of the pump; an axial gap is formed between the front cover plate of each impeller and the corresponding pump cover, so that liquid hydrodynamic support for restricting rotor axial movement is formed during the normal operation of the pump. In such a way, the rotor can be suspended in the pump cavity during normal operation. The pump provided by the invention can be used for meeting double-flow use requirement of different flows and pressures, and good flowing condition can be effectively and favorably formed in the internal cavity of the pump shell, and moreover, the operation reliability of the pump can be improved.

The invention discloses a reel device convenient to dismount for textile machinery. The reel device comprises a reel rotating shaft, wherein fixing blocks are arranged on both the left side and the right side of the reel rotating shaft; a first support block is fixedly connected with the top of each fixing block; a first threaded rotating shaft is arranged at the top of each first support block; the first threaded rotating shafts penetrate through the first support blocks and the reel rotating shafts from top to bottom from the bottom ends in sequence and extend into the reel rotating shafts.Due to mutual cooperation of the fixing blocks, the first support blocks, the first threaded rotating shafts, threaded rods, first threaded blocks, first chutes, first sliding blocks, second support blocks, second threaded rotating shafts, threaded sleeves, second threaded blocks, second chutes, second sliding blocks, rotating shafts and third sliding blocks, the problem that a common reel devicefor textile machinery is inconvenient to dismount is solved, due to a threaded connection mode, a rotating cylinder can be conveniently replaced, the working intensity of operators is reduced, the working efficiency is improved, and great convenience is brought to textile operation.

A micro-copper-formulated ceramic brake pad is made with aramid pulp, carbon fiber, magnesium hydroxide, copper fiber, brown fused alumina, antimony sulfide, ceramic fiber, superfine iron oxide powder, calcium sulfate whisker, potassium titanate, barite, crystalline flake graphite, calcined petroleum coke, nano hollow float beads, flake aluminum powder, nitrile butadiene rubber powder, cashew nut shell oil modified phenolic resin, zirconite, boron nitride, zinc oxide, and benzoxazine resin. The components are reasonably matched, and advantages of the materials can be given to full play in abrasive materials. The novel fiber materials are reasonably composited, performance defects of the materials can be mutually complemented, and high performance is achieved through mutual connective action. The micro-copper-formulated ceramic brake pad has low content of heavy metals and smaller than 0.5% of copper content and therefore, is very environment friendly.

The invention provides a highly efficient high-speed permanent magnetic synchronous motor, which relates to the technical field of motors, and the synchronous motor solves the problems of little leakage reactance, the great harmonic component of winding current and the high frequency loss of the stator and the rotor of a motor, which exist in the existing high-speed permanent magnetic synchronous motor. The motor comprises a stator, a rotor and an air gap, and is of an inner rotor structure; the rotor comprises a permanent magnet, a permanent magnet sheath and a rotating shaft, and the stator comprises a stator core and a winding; one side of the stator core, which is near a shaft center, has a plurality of cogging through holes opened along an axial direction, and the cogging through holes are used for embedding and placing the winding; the stator core can also adopt a split type, namely that the core is divided into a yoke core and a cogging core, the yoke core is cylindrical, the inside of the cogging core is cylindrical, and the external circumference of the cogging core has a plurality of coggings opened along an axial direction used for embedding and placing the winding; the cogging core is embedded into the yoke core to form the stator core. The synchronous motor can not only be used as a high-speed motor, but also be used as a high-speed generator, thereby having wide application prospect.

The invention relates to a dust removing device and a chassis adopting the dust removing device. The dust removing device comprises a motor; the motor is provided with a motor shaft of which the axis extends in the front-back direction; a fan is fixed on the motor shaft; cathode nets are fixed on the front ends of all blades of the fan; anode adsorption layers in insulation match with the corresponding cathode nets are fixed between all the cathode nets and corresponding blades of the fan; the fan is further provided with a first rotation electric connection structure for electrically connecting all the cathode nets with corresponding cathode power supplies and a second rotation electric connection structure for electrically connecting all the anode adsorption layers with corresponding anode power supplies. The invention provides the dust removing device with a compact structure.

The invention provides a method for preparing carbon nanotube and PCM-combined phase change temperature control component, which aims to provide a method for preparing a phase change temperature control component with high phase change latent heat and better heat conduction effect. The present invention is implemented as follows: casting pyrolytic graphite in the heat sink bottom and the verticalhot wall surface of a metal conductor packaging container; combining carbon nanotubes and phase change materials by ultrasonic vibration to form a carbon nanotube and phase change composite material,and charging the liquid carbon nanotube and phase change composite material in a heat conductive reinforcing skeleton by a vacuum co-fusion method; welding the heat conductive reinforcing skeleton ina phase change cavity to form a multilayer phase change latent heat self-control adjustment level that the pyrolytic graphite wrapping, in a U-shape, heat conductive reinforcing skeleton, and forminga thermal insulation buffer layer from the phase change cavity; and finally, welding a cover plate on the stepped opening of the metal conductor packaging container by electron beam welding, enclosingto form a closed phase change temperature control component, and processing to obtain the boundary dimension according to requirements.

The invention provides a multifunctional aluminum alloy product heat radiating device. The multifunctional aluminum alloy product heat radiating device comprises a supporting frame, a working box, a box cavity, an inlet-outlet, a sealing cover, a handle, air coolers, a rotating disc structure, an air suction pipe structure and a cooling and spraying box structure, wherein the working box is weldedon the top of the supporting frame; the box cavity is arranged inside the working box; the inlet-outlet is formed in the upper part of the working box; the sealing cover sleeves the upper part of theworking box; the handle is welded on the upper surface of the sealing cover; the air coolers are respectively installed on the left side and the right side of the rear wall of the supporting frame; the rotating disc structure is installed on the lower surface of the supporting frame by virtue of a bolt; and the air suction pipe structure is welded on the left upper part of the working box. The multifunctional aluminum alloy product heat radiating device has the beneficial effects that by arranging the rotating disc structure, when an aluminum alloy product is arranged, an effect for radiatingthe heat of the aluminum alloy product can be realized; and meanwhile, the over-heated aluminum alloy product can also be prevented from damaging the rotating disc structure.

The invention relates to outdoor electronic equipment and a control method of a constant temperature working environment thereof. The outdoor electronic equipment comprises a shell, wherein an electronic module accommodation space is formed in the shell, a box body is arranged on the shell, a phase change material is filled in the box body and a heat conducting structure for heat transfer is formed between the box body and the electronic module accommodation space. The phase change of the phase change material is used for heating or absorbing heat, and the transfer of heat quantity is carried out between an advertising machine and a phase change material through the heat conducting structure, therefore the constant temperature can be provided to the electronic module accommodation space of the outdoor electronic equipment; furthermore, compared with an air conditioner, the energy consumption can be reduced greatly, the cost can be reduced, and the control method of the constant temperature working environment can be extensively applied to the outdoor electronic equipments.

The invention discloses an LED electric torch. The LED electric torch comprises a base plate, a shell, a controller, a power supply and a lampshade, wherein an LED bulb is packaged on the base plate; the shell is connected with the base plate; the controller is arranged inside the shell and is electrically connected with the LED bulb; the power supply is arranged inside the shell and used for supplying power to the LED bulb and the controller; the lampshade is connected with the shell; one end, connected with the base plate, of the shell, is provided with a plurality of cooling holes; a switch is also arranged on the shell; movable first baffles corresponding to the cooling holes are closely arranged on the outer wall of the shell; the first baffles are connected with the switch. According to the LED electric torch, when a hand turns on the switch by movement, the switch can be used for driving the first baffles to generate displacement so as to open the cooling holes, so that the cooling holes can have a cooling effect to improve the cooling efficiency; when the switch is turned off, the baffles can be driven to return to close the cooling holes, so that dust is prevented from entering the shell.

The invention discloses a high-capacity aging test box, which comprises a box body, a power supply assembly, a control unit, a plurality of driving board assemblies and an aging board assembly arranged opposite to the driving board assemblies, and is characterized in that the power supply assembly, the control unit, the driving board assemblies and the aging board assembly are all arranged in the box body; the control unit, the driving board assembly and the burn-in board assembly are electrically connected with the power supply assembly, and the driving board assembly and the burn-in board assembly are in signal connection with the control unit; the burn-in board assembly comprises a burn-in board frame, a driving board and a plurality of first fans, and the first fans are arranged on the two sides of the burn-in board respectively to form a first air duct; and the driving plate assembly comprises a driving frame, a plurality of electric conduction and heat conduction pipes, a plurality of second fans and a plurality of driving plates electrically connected with the burn-in plates one by one, the driving plates are arranged on the driving frame in parallel, and the second fans are arranged on the two sides of the driving plates respectively to form second air channels with the driving frame. A large number of chips can be tested at a time, and the size is small.

The invention discloses a separating machine with a good impurity removing effect for agricultural grain. The separating machine with the good impurity removing effect for the agricultural grain comprises a shell, wherein a rotary motor is fixedly connected to the top part of the shell; a rotary shaft is fixedly connected onto an output shaft of the rotary motor; the bottom end of the rotary shaftpenetrates through the shell and extends to the inner part of the shell; a screen drum is arranged on the bottom part, located in the shell, of the rotary shaft; connecting rods are fixedly connectedto the left side and the right side of the rotary shaft; and one ends, far away from the rotary shaft, of the connecting rods are fixedly connected to the inner wall of the screen drum. According tothe separating machine with the good impurity removing effect for the agricultural grain provided by the invention, through the interaction of the rotary motor, the rotary shaft, the screen drum, theconnecting rods, a first sieve plate, a fan, a sliding rod, a sliding block, a reset spring, a second sieve plate, a drive motor, a drive rotary shaft and a rotary block, the grain is screened by adopting multi-stage screening and can be treated in a grading way, a screening manner is good, impurities of the grain can be removed thoroughly, a screening requirement of the high-quality grain can bemet, and great convenience is brought for a user.

The invention discloses a tunnel construction lighting device good in protecting effect. The tunnel construction lighting device comprises a box and is characterized in that two first telescopic rodsare fixedly connected to the bottom of the inner wall of the box, and the tops of the two first telescopic rods are fixedly connected through a slide plate. The tunnel construction lighting device hasthe advantages that by the coordination of the first telescopic rods, the slide plate, first springs, sliders, slide rods, limit blocks, second springs, a fixing plate, dustproof plates, first slidegrooves, first sliders, second slide grooves, second sliders, second telescopic rods, reset springs, fixing seats, support rods, fixing grooves, squeezing blocks, third slide grooves, third sliders and third springs, the problem that a common tunnel construction lighting device is unsatisfactory in protecting effect is solved, a gravel damping effect is achieved during tunnel construction, the lighting device is prevented from being smashed, the service life of the lighting device is prolonged, potential safety hazards are avoided, and great convenience is brought to tunnel construction.

The invention discloses a dry type transformer, and relates to electrical equipment. The dry type transformer comprises a transformer, wherein a shell is arranged outside the transformer; the transformer is arranged in the shell in a sealed mode; the shell is provided with a vacuum interlayer, and a cable channel is formed in the vacuum interlayer; a gas circulating device is further arranged on the shell; the gas circulating device comprises an air pump and a gas storage tank; compressed nitrogen is stored in the gas storage tank; the shell is further provided with an air inlet and an air outlet which are matched with the gas circulating device; and a heat exchange device is further arranged on the gas circulation device. Compared with the prior art, the dry type transformer is sealed ina shell full of nitrogen, so that external dust and impurities are isolated, and the constant-temperature and constant-humidity in the shell can be kept; and due to the fact that no oxygen exists, oxidation reaction is completely eradicated, so that the service life of the dry type transformer is greatly prolonged, and the occurrence rate of faults is reduced. Moreover, after the dry type transformer is exploded, the occurrence of fire disasters can be reduced under the inhibition of nitrogen.

The invention discloses a perforating machine with good stability effect for furniture processing. The perforating machine with good stability effect for furniture processing comprises a fixing plate,wherein supporting plates are fixedly connected to the left side and the right side of the top of the fixing plate, the tops of the two supporting plates are fixedly connected through a connecting plate, a driving motor is fixedly connected to the left side of the top of the connecting plate, and the output shaft of the driving motor is fixedly connected with a driving rotating shaft. According to the perforating machine, the driving motor, the driving rotating shaft, a first gear, the threaded sleeve, a second gear, a threaded rod, a sliding rod, a sliding block, a connecting block, a firstspring, a punching motor, a punching rotary shaft, a punching head, a punching table, a telescopic rod and a second spring are arranged in a matched mode, the first spring and the second spring are coordinated with each other, so that the effect of damping the punching head is achieved, the punching head can be prevented from shaking during the rotating and advancing process, so that the drillingerror is caused, the processing quality of furniture is improved, and great convenience is brought to furniture processing.

The invention discloses a rotary lamp which comprises a rotary lamp rotating plate and a lamp unit. The rotary lamp rotating plate is provided with a lamp unit mounting site and internally provided with at least two control device mounting portions. The control device mounting portion on one side of the lamp unit mounting site is provided with a circuit board and a positioning piece. The control device mounting portion on the other side of the lamp unit mounting site is provided with a drive motor and a driving piece which are in driving connection. The lamp unit is arranged at the lamp unit mounting site. A first connection site of the lamp unit is connected with the positioning piece and provided with a through hole communicating with the inside of the lamp unit. The circuit board is provided with a connection wire with one end connected with the circuit board and the other end penetrating through the through hole and electrically connected with the lamp unit. A second connection side of the lamp unit is connected with the driving piece which drives the lamp unit to rotate. According to the rotary lamp, control devices are simple in structure and circuit, circuit faults are not prone to occurring, and practicability is high.

The invention discloses a numerical control press with anti-machining impact force. The numerical control press comprises a base and a base plate. A supporting frame is fixedly connected to the top ofthe base plate. The two sides of the bottom of the base plate are each fixedly connected with a buffer frame. The two sides of the bottoms of the buffer frames are each fixedly connected with a firstfixing block, a buffer ring is fixedly connected to the bottom of each fixing block, a second fixing block is fixedly connected to the bottom end of each buffer ring, and a transverse plate is fixedly connected to the bottoms of the second fixing blocks. The invention relates to the technical field of numerical control presses. The numerical control press with anti-machining impact force has theeffect of resisting machining impact force, the buffer damping effect is achieved for the numerical control press, damage caused to parts during working of the numerical control press is avoided, thenumerical control press is kept clean and tidy, the fixing clamping effect is achieved, parts are prevented from sliding down, working of the numerical control press is more precise, the cooling effect is achieved, unnecessary waste is reduced, and the working efficiency of the numerical control press is improved.

The invention discloses an industrial raw material dehumidification drying device which comprises a base and a universal wheel. The device can scatter raw materials before drying, and the problem thatscattering work before drying cannot be carried out on raw materials, and therefore drying efficiency is too low is solved. Evaporated-out liquid can be recycled, and the problem that gas evaporatedout during drying cannot be converted into water for storage for secondary utilization, and therefore resources are wasted is solved. An electric heating wire and a first motor can be controlled according to data detected by a humidity sensor to stop operation, and the problem that humidity in evaporated gas cannot be detected, operation of a heating element and a second motor cannot be controlledthrough humidity detection data, and therefore use is inconvenient is solved. Moisture and smell contained in gas can be filtered away and adsorbed through filter cotton and activated carbon, and theproblem that gas left after watering cannot be exhausted after being purified, and therefore surrounding environment is moist and has raw material odor is solved.

The invention discloses a combined sewing machine. The combined sewing machine comprises a rack, a telescopic mechanism and adjusting mechanisms. The rack comprises a workbench, a bottom plate and wheels, the telescopic mechanism is installed inside the workbench, the adjusting mechanisms are installed on the left side and the right side of the top of the bottom plate, the tops of the adjusting mechanisms are fixedly connected with the bottom of the workbench, and a sewing assembly is installed at the top of the workbench. The wheels are installed at the four corners of the bottom of the bottom plate, the telescopic mechanism comprises a motor, and the motor is installed on the right side of the bottom of the inner wall of the workbench. By arranging the telescopic mechanism, the area of asewing machine panel can be automatically adjusted, the adjusting mode saves time and labor, and the sewing machine is convenient to use; by arranging the adjusting mechanisms, the height of the sewing machine can be adjusted conveniently to be suitable for operators with different heights to use, the practicability of the sewing machine is improved, and great convenience is brought to sewing work.

An LED street lamp comprises a lamp pole and a lamp cap arranged on the lamp pole. The lamp cap comprises a first connecting plate connected with a substrate and a second connecting plate connected with the first connecting plate, the second connecting plate is opposite to the first connecting plate, and a clearance layer exists between the first connecting plate and the second connecting plate. A plurality of cooling fins are connected with the face, away from the substrate, of the second connecting plate. Heat transfer shafts are arranged at the connecting positions of the second connecting plate and the cooling fins, and heat pipes are inserted in the middles of the heat transfer shafts. The cooling fins are rotatably connected with the heat transfer shafts. Springs are connected between the ends, away from circular rings, of the cooling fins and the second connecting plate. An acute included angle is formed by each cooling fin and the second connecting plate, and vent holes are formed in the acute included angle positions of the second connecting plate and the cooling fins. According to the LED street lamp, when the LED street lamp is turned on, heat generated by the substrate can be emitted out through the cooling fins, meanwhile, the cooling fins can guide more air to enter the clearance layer, and cooling is facilitated. The springs can limit the cooling fins, and can protect the cooling fins and the LED street lamp.

A blade is mainly applied to the field of heavy type cutting, and the problems that during heavy type machining of large special-shaped pieces, since the cutting parameters are large and the machinedcomponent surface state is complex, the blade is likely to vibrate, and failures happen need to be solved. For the large special-shaped piece machining complex work condition, a heavy type cutting rotary turning and milling composite blade is developed and designed. The blade is provided with a linear cutting edge and an arc cutting edge; and meanwhile, the large parameters during heavy type cutting are considered, so that negative chamfer is designed, and the cutting edge strength of the blade can be improved. Streamline protrusions and conical abrasion reducing protrusions are designed on the upper cutter face, and during machining, the functions that the cutting temperature is reduced and scrap rolling and discharging are assisted can be achieved, and meanwhile the anti-vibration capability of the blade is improved. An octangle groove and a set screw hole are designed in the geometric center of the blade, an annular heat dissipation groove is designed in the bottom, the blade and air contact area can be increased while cutting fluid is stored, the heat dissipation function is achieved during blade cutting, and meanwhile the blade strength is improved. The whole blade structure is complete, the production cost is low, and the heavy type cutting rotary turning and milling composite blade is suitable for being used for heavy type turning and milling machining.

An LED lamp with a changeable size comprises a substrate which is provided with LED lamp beads in a packaging mode, a controller which is electrically connected with the LED lamp beads, a base connected with the substrate and a lamp cover connected with the base. The lamp cover is arranged at the end, connected with the substrate, of the base. The base comprises a base body connected with the substrate, a radiator connected with the base body and a closing device connected with the base body. The radiator is arranged on the outer wall of a pipeline in a sleeving mode, the radiator comprises a radiator body connected with the pipeline and a plurality of radiating fins connected with the outer wall of the radiator body, and the radiating fins are bent elastic metal fins. The closing device comprises a first closing plate which is arranged between a connecting plate and the radiator body and a second closing plate which is connected with the end, far away from the connecting plate, of the radiator body. According to the LED lamp with the changeable size, the heat on the substrate is transmitted into the radiator through the base body, and the heat is radiated out through the bent radiating fins. The bent radiating fins can achieve the radiating effect, and the overall size of the LED lamp can also be reduced by contracting.

The invention discloses a microbial dredging device, comprising a casing body. The top of the casing body is fixedly connected with a shell, and the top of the casing body is fixedly connected with adriving motor inside the shell. The microorganism is placed in the inner part of the box through the coordination of a driving motor, a driving shaft, a first gear, a rolling bearing, a rotating shaft, a second gear, a controller, a thread sleeve, a thread groove, a threaded rod, a box, a telescopic rod, a drill bit, a cylinder, a through groove and a baffle plate. The controller drives the driving shaft forward or backward by controlling the driving motor, the driving shaft drives the second gear to rotate through the first gear, and the second gear drives the thread sleeve to rotate throughthe rotating shaft. Due to the screw principle, the threaded rod drives the box to move upward or downward, and the microorganism can be applied to the mud at different depth positions. The speed of sludge removal is accelerated, and the sludge removal effect is ideal, which brings great convenience to the dredging work.

The invention discloses a discharge device. The discharge device comprises a first current transforming module, a second current transforming module, a power supply module, a blower module and a discharge module; the output end of the energy storage device is connected with the input end of the first current transforming module and the input end of the second current transforming module separately, the output end of the first current transforming module is connected with the discharge module, and the output end of the second current transforming module is connected with the input end of the power supply module and the input end of the blower module separately; the first current transforming module outputs first voltage, the second current transforming module outputs second voltage, and thefirst voltage is greater than the second voltage. In this way, the first current transforming module can enable the discharge module to discharge in a constant state, the power supply module and theblower module in the second current transforming module also consume a certain amount of energy, and meanwhile, the blower module also has a heat dissipation function, so that the discharge device hasthe advantages of being high in discharge efficiency, simple in structure and convenient for staff to use. Correspondingly, the invention further discloses a discharge system of the energy storage device. The discharge system of the energy storage device also has the advantages above.

The invention discloses a steel structure drilling device convenient to use. The steel structure drilling device comprises a bottom plate, the left side and the right side of the top of the bottom plate are both fixedly connected with supporting plates, the tops of the two supporting plates are fixedly connected through a top plate, the top of the top plate is fixedly connected with an air cylinder, and the bottom end of the air cylinder penetrates through the top plate and extends to the exterior of the top plate. According to the steel structure drilling device convenient to use, through mutual cooperation of the air cylinder, a drilling motor, a drilling rotating shaft, a first gear, a second gear, a rotating shaft, a second bearing, a drill bit, a threaded block, an adjusting motor, anadjusting rotating shaft, a third bearing, a third gear, a fourth gear, a threaded rotating shaft, a fourth bearing, a horizontal-moving motor and a strip-shaped gear groove, the problem of inconvenient use of a common steel structure drilling device is solved, when a plurality of drilled holes are formed in a steel structure, an automatic adjustment mode is adopted, the drilling position is convenient to adjust, the labor intensity of workers is lowered, the drilling error is reduced, and great convenience is brought to drilling work.