2234results about How to "Improve cooling efficiency" patented technology

The invention relates to an ice crystal evaporator and an ice crystal water cooling device producing from the same, belonging to the technical field of refrigeration. The ice crystal evaporator is characterized in that a liquid inlet channel is formed by an evaporator tube, a liquid inlet and a liquid outlet in a tubular casing; and the outer channel of the evaporator tube of the tubular casing is divided into more than one S-shaped channel forming a water return channel through a water inlet of a water divider and a water outlet of a water collector. The ice crystal water cooling device is characterized in that the return air inlet of the ice crystal evaporator is communicated with a compressor, a condenser, a liquid feeding valve, a dry filter, a liquid feeding electromagnetic valve anda thermostatic expansion valve in sequence, and then is communicated with the liquid inlet of the ice crystal evaporator; a cooling water inlet / outlet of the condenser is connected with a cooling tower in series; and a water inlet / outlet of the ice crystal evaporator is communicated with a water circulating pump and an ice crystal energy storage tank in series. The invention has the advantages ofhigh cooling efficiency, no icing and low cooling temperature and is suitable for production of energy storage central air-conditioning, marine fishing, seafood processing, fruit, vegetable or meat processing, and the like; the cooled medium is municipal water.

The utility model relates to the technical field of mobile phone heat dissipation films, in particular to a high-heat-conduction mobile phone middle frame graphite heat dissipation film which comprises a heat dissipation film body, the heat dissipation film body sequentially comprises matte black single-faced adhesive tape, a high-heat-conduction graphite layer and double-faced adhesive tape from top to bottom, the high-heat-conduction graphite layer is formed by stacking low-temperature carbonization layers and is 0.2 mm in thickness, and the high-heat-conduction graphite layer is formed by stacking low-temperature carbonization layers. The low-temperature carbonization layer is formed by graphene through low-temperature carbonization treatment, the heat conductivity coefficient reaches 2000-2100 W / M.K, energy consumption is reduced through low-temperature treatment, the production cost is indirectly reduced due to the low temperature requirement, the graphene is subjected to low-temperature carbonization treatment, the lattice defect density is reduced, and the stability of the heat conductivity coefficient is ensured; and meanwhile, the 0.2 mm high-thermal-conductivity graphite layer is formed by stacking the low-temperature carbonization layers, so that the occupied space of the heat dissipation film body in the middle frame is reduced.

The invention discloses a chip packaging module structure and an electronic product, and relates to the technical field of chip packaging, the chip packaging module structure comprises a PCB, an insulating substrate, a first radiator and a second radiator; the insulation substrate is arranged on the PCB, the insulation substrate is provided with a first side and a second side, the insulation substrate is provided with a first chip in an integrated mode, the first chip is located on the second side of the insulation substrate, the insulation substrate is provided with a plurality of via holes penetrating through the first side and the second side, metal is arranged in each via hole, at least part of the via holes are conductive holes, and the first chip is arranged on the first side of the insulation substrate. The metal in the conductive hole is used as a part of an electric connection structure between the PCB and the plurality of chips; the first radiator is in thermal conduction connection with the first chip; the second radiator is arranged on the other side of the PCB, and a longitudinal heat conduction structure is formed between the second radiator and the first chip, so that the second radiator is in heat conduction connection with the first chip; the technical scheme provided by the invention aims to improve the heat dissipation efficiency.

The utility model relates to a heat dissipation and flow guide structure, and provides the heat dissipation and flow guide structure for the charging cabin of the unmanned aerial vehicle, which comprises a cabin body, a shell, a charging seat, an integrated module and the like, a shell is fixedly arranged on the upper left portion of the cabin body, a control panel is arranged on the upper portion of the shell, an integrated module is arranged on the upper rear portion of the cabin body, an inner groove is formed in the cabin body, an E-shaped charging base is fixedly arranged in the inner groove, and the charging base and the inner groove are matched to form two charging grooves which are symmetrical front and back. During use, after airflow introduced by an air inlet fan is shunted by the flow guide cover and the T-shaped groove, part of the airflow takes away heat through a transverse airflow channel formed by the fin rays, and the other part of the airflow enters the flow guide groove of the U-shaped plate, so that the heat of the contact seat conducted by the heat conducting plate I and the heat of the charging bin conducted by the heat conducting plate II are combined; and finally, the air is discharged by the air outlet fan through the air transmission opening and the L-shaped groove, so that comprehensive heat dissipation of the charging seat, the contact seat and the charging cabin position in the charging cabin is realized, and the heat dissipation efficiency is effectively improved.

The invention relates to the technical field of X-ray tube manufacturing, in particular to an X-ray tube shell, a manufacturing method and an X-ray tube, the X-ray tube shell comprises a shell used for containing an anode target disc, a heat dissipation layer is attached to the inner wall of the shell, and the heat dissipation layer at least surrounds the periphery of the anode target disc; the heat dissipation layer is of an interpenetrating network structure formed by compounding functional metal and diamond, and the material of the functional metal at least comprises one of molybdenum and tungsten. Based on the device, the shell can absorb thermal radiation energy by using the high absorption characteristic of molybdenum or tungsten in an infrared band, and can quickly conduct heat out by means of the high thermal conductivity of diamond, so that the heat dissipation efficiency of the shell is improved, and heat accumulation is effectively prevented.

The present application relates to a kind of staggered jet microchannel heat sink, including cover layer, manifold layer, jet layer and microchannel layer stacked in turn, cover layer is equipped with fluid inlet and fluid outlet, manifold layer is used to shunt the fluid of fluid inlet, jet layer is equipped with array distribution jet orifice and backflow hole, jet orifice and backflow hole staggered distribution, microchannel layer is equipped with heat dissipation groove, heat dissipation groove is equipped with array distribution columnar needle fin, and form needle fin microchannel, the axial direction of columnar needle fin and the jet direction of jet orifice are parallel to each other;Fluid emitted by jet orifice is boiled and carries out transverse flow in needle fin microchannel and absorbs heat, based on the staggered distribution of jet orifice and backflow hole, the transverse flow fluid in needle fin microchannel presents staggered counterflow, and flows to fluid outlet by backflow hole.Compared with prior art, the present application improves the temperature uniformity of heat dissipation object, effectively suppresses the generation of local hot spot and greatly improves heat exchange efficiency.

A bottom box with an opening in the top is made of plastic materials, a metal heat dissipation plate is installed on the top of the bottom box, heat dissipation fins are vertically arranged on the top face of the heat dissipation plate side by side, a circuit board is installed in the bottom box and adjacent to the heat dissipation plate, and heat dissipation silica gel is attached to a power resistor on the circuit board. The top face of the heat dissipation silica gel is attached to the inner side face of the heat dissipation plate, so that heat is rapidly transmitted to the heat dissipation plate and then dissipated into air. According to the lamp strip driver, the heat dissipation speed and the working stability of the LED lamp strip can be effectively guaranteed, the weight and the production cost can be reduced, and the strength and the stability of wireless transmission are improved.

This invention provides a carbon dioxide recovery cascade refrigeration system, including a circulation loop and a first heat exchanger, a compressor, a condenser, and a first oil drain pipe disposed on the circulation loop. The circulation loop is used for the flow of carbon dioxide heat exchange medium. The first heat exchanger has independent first and second heat exchange channels. The first heat exchange channel has a first inlet and a first outlet. The second heat exchange channel has a second inlet and a second outlet respectively connected to the circulation loop. The carbon dioxide heat exchange medium in the second heat exchange channel is used to reduce the temperature of the medium in the first heat exchange channel. An oil drain port is provided at the bottom of the first heat exchange channel. The gas inlet of the compressor is connected to the second outlet of the first heat exchanger. The condenser is located downstream of the compressor and is used to condense the carbon dioxide heat exchange medium after compression by the compressor. The oil drain port is connected to the inlet of the compressor through the first oil drain pipe. This system uses carbon dioxide as the heat exchange medium, resulting in low cost.

The application relates to the air conditioning technical field and discloses an indoor unit and an air conditioner. The indoor unit comprises a shell, an air duct formed in the shell, an air inlet and an air outlet, and the air duct is communicated between the air inlet and the air outlet; a heat exchanger located in the air duct; a cross-flow fan located in the air duct, the cross-flow fan comprising a motor; wherein a side wall of the air duct is provided with an exhaust passage communicated with the air duct, the shell is further provided with a heat dissipation passage, the heat dissipation passage is located outside the air duct and is communicated between the exhaust passage and the motor, and airflow in the air duct can flow to the motor through the exhaust passage and the heat dissipation passage. The airflow in the air duct has certain kinetic energy and temperature regulation, thereby providing continuous cooling effect for the motor, so that the heat dissipation efficiency of the motor is remarkably improved, and the service life of the motor is prolonged.

The utility model discloses an electromagnetic damping vibration isolation device belongs to vibration control technical field. The utility model solves the technical problem of the magnetic field intensity fixed of electromagnetic damping vibration isolation device and coil heating easily leads to performance attenuation. The utility model discloses an electromagnetic damping vibration isolation device, including coil subassembly and conductor block. Coil subassembly includes coil and coil clamp. Coil clamp is held in the outer periphery of coil. Coil clamp includes clamp body and water cooling pipeline. The heat dissipation block is equipped on the clamp body, and the heat dissipation block extends along the radial direction of coil, and multiple heat dissipation blocks are evenly arranged around coil. The water cooling pipeline is surrounded in the clamp body. The conductor block is located between at least two groups of coil subassembly, and the magnetic pole of every two groups of coil subassembly is opposite, thereby making the conductor block can be subjected to electromagnetic damping force when producing vibration. The utility model discloses a vibration isolation device can cover the vibration control demand of multiple frequency bands, avoids coil overheat aging, improves the life of vibration isolation device.

The utility model relates to diamond tool bit processing field discloses a kind of for diamond tool bit cooling device, comprising: mould seat, cooling mechanism is arranged on the mould seat;The cooling mechanism includes water tank one, cooling channel, water tank two, return pipe, connecting pipe, radiator pipe, cooling fan and ejector assembly;Water tank one is fixedly installed at the bottom of mould seat, the cooling channel is opened in mould seat, water tank two is fixedly installed at the top of water tank one, the return pipe is fixedly installed on mould seat and water tank two, the connecting pipe is fixedly connected with return pipe and radiator pipe, cooling fan is fixedly installed on mould seat;The ejector assembly includes ejector rod, floating plate and conduit.The utility model has following advantages and effects: can efficiently cool and lower temperature to the diamond tool bit after forming, and after cooling and lowering temperature, it is convenient to take out diamond tool bit.

The present disclosure relates to the technical field of flexible electronic devices, and particularly relates to a preparation method of an ultrathin diamond integrated flexible circuit board and the ultrathin diamond integrated flexible circuit board. The preparation method of the ultrathin diamond integrated flexible circuit board abandons the attachment mode of the existing flexible circuit board technology relying on the heat-conducting adhesive layer, and through depositing a first bonding medium layer and a second bonding medium layer on the nucleation surface of the diamond flexible film and the back surface of the flexible circuit board respectively, and after activation, the vacuum low-temperature hot-press bonding process can be used to realize the close combination of the first bonding medium layer and the second bonding medium layer without the adhesive layer, thereby completely eliminating the high thermal resistance bottleneck problem caused by the adhesive layer bonding of the existing flexible circuit board. Moreover, the diamond flexible film has excellent bending performance, and during bonding, the diamond flexible film can be tightly attached to the three-dimensional structure such as the flexible circuit board pad and the bending trace, thereby realizing high conformal integration, and meanwhile, the film thickness of the diamond flexible film can be adjusted according to the local heating difference of the flexible circuit board.

This invention discloses a hard mold casting device for steel casting production, specifically relating to the field of hard mold casting technology. The device includes: a base frame; a lower mold and an upper mold, arranged sequentially from bottom to top above the base frame; multiple guide rods fixedly connected to the upper surface of the base frame, each guide rod penetrating the surfaces of the lower and upper molds to guide their closing and opening; a lower mold sleeved inside the lower mold; and an upper mold sleeved inside the upper mold. This invention utilizes staggered square tubes and nut joints to divert and deliver coolant, which is then evenly sprayed through atomizing holes in the water pipe to improve mold cooling efficiency and avoid affecting casting quality. An electric cylinder pushes a pusher and multiple sets of supports to lift the lower mold, achieving smooth demolding of the casting. The upper mold can be quickly disassembled and assembled using pins, springs, and through-hole locking mechanisms on the positioning plate, shortening mold change time and improving production flexibility.

The utility model discloses an efficient refrigeration compressor wire tube condenser, which comprises a condenser body, an air inlet, an air outlet, an air inlet, an air outlet, an air inlet, an air outlet, an air outlet, an air inlet and an air outlet and is characterized in that the condenser body is provided with an inlet end and an outlet end, and a plurality of parallel condensing pipeline parts are arranged between the inlet end and the outlet end; the heat dissipation wires are wound on the condensation pipeline part, and the condensation pipeline part is provided with a plurality of heat dissipation wires which are arranged at equal intervals in the width direction of the condensation pipeline part; the bracket is used for supporting the condenser body; and the intervals of the heat dissipation wires on the condensing pipeline parts which are sequentially arranged from the inlet end to the outlet end are gradually increased. Compared with the prior art, the wire tube condenser solves the problem of low heat dissipation efficiency caused by consistent distribution density of heat dissipation wires on multiple layers of condensation pipelines in an existing wire tube condenser.

The invention relates to a reduction gear (10) for an aviation propulsion assembly, comprising a ring gear (10A), a sun gear (10B) and at least one planetary gear (10C); an oil supply circuit (30) for at least one element of the sun gear (10B), the ring gear (10A), the at least one planet gear (10C) and the planet carrier (10D); and an annular housing (12) housing the ring gear (10A), the sun gear (10B), the at least one planetary gear (10C) and the planet carrier (10D), the annular housing (12) having a radially facing inner surface (12A) and an oil trap (13) configured to drain oil by gravity, the radially inner surface (12A) comprising a plurality of relief structures (14) distributed in a circumferential direction (C).

The utility model provides an electric aircraft cold and hot mixing device which comprises a cold air collecting assembly, a mixing assembly and a heat dissipation assembly, the mixing assembly is arranged above a battery assembly, the mixing assembly is provided with a mixing cavity, and an outlet section of the mixing cavity is communicated with a cabin environment control system through a ventilation pipeline; the cold air collecting assembly comprises a plurality of cold air pipelines, cold air inlets of the cold air pipelines are formed in wings or fuselage of the electric aircraft and correspond to the battery assembly, and cold air outlets of the cold air pipelines extend into the inlet section of the mixing cavity; the heat dissipation assembly comprises a plurality of heat conduction coil pipes, the heat conduction coil pipes are arranged on the bottom surface of the battery assembly, hot air inlets of the heat conduction coil pipes are communicated with the battery assembly, and hot air outlets of the heat conduction coil pipes extend into the inlet section of the mixing cavity and are staggered with the cold air pipeline. Natural high-altitude cold air is fully utilized, and the cold air and hot air generated by the battery are fully mixed in the mixing cavity, so that the temperature of the air is effectively reduced, and the heat dissipation efficiency of the battery system is improved.

This utility model discloses an air-cooled dry-type transformer, including a base and a winding structure disposed on the upper end of the base, the winding structure being used to improve the heat dissipation capacity of the winding; it also includes a heat dissipation component disposed on the upper part of the base, the heat dissipation component being used to improve the heat dissipation effect, and a cover plate being provided on the upper end of the support frame. This utility model belongs to the field of transformer heat dissipation technology, specifically an air-cooled dry-type transformer.

The utility model discloses a piston type refrigeration compressor with overheating protection, including compressor main part and casing, both sides of casing are equipped with through -hole, and casing is through the through -hole and is equipped with in the outside of compressor main part, and the one end vertical of casing is equipped with the air outlet pipe, and the other end is equipped with the air inlet pipe, and the one end of air inlet pipe is installed with the liquid storage shell away from casing, and the center of liquid storage shell bottom surface is equipped with the air inlet hole, and the pipeline is installed in the air inlet hole, and the inside installation of pipeline has the heat dissipation fan, and the liquid storage groove is formed between pipeline and liquid storage shell, and a plurality of ultrasonic atomizing pieces are installed in the liquid storage groove. The utility model discloses simple structure, and the wind of heat dissipation fan produces can be discharged from the air outlet pipe to the outer wall of casing and compressor main part upwards, and along with the improvement of heat, the water mist of ultrasonic atomizing piece can be blown into the casing, and until along the air outlet pipe and is discharged, through the contact of water mist and compressor main part and with the contact of casing inside air, can quickly absorb its heat, to increase the cooling efficiency.

The utility model discloses an emulsifier tail gas adsorption processing device, including the box, the feed inlet of box is provided with the filter bin, and the top of filter bin is provided with the air inlet pipe, be provided with the filter screen in the box, filter screen side is provided with adsorption cover, adsorption cover side is provided with the exhaust fan, the other end of exhaust fan is connected with the gas collecting pipe, the other end of gas collecting pipe is inserted in the liquid in the inner cylinder body, and is provided with the check valve on the gas collecting pipe, be provided with the stirring mechanism in the inner cylinder body, the inner cylinder body top is inserted with the exhaust pipe, and the exhaust pipe is connected with the purification ball, the outer portion of inner cylinder body is provided with tail gas cooling mechanism. The utility model discloses scientific and reasonable structure design, through motor drive pivot and stirring paddle rotation to agitate neutral liquid, make neutral liquid and tail gas contact area increase, and the neutral efficiency improves greatly, and the gas through processing is filtered after discharging to the collection device in the purification ball, improves tail gas absorption efficiency.

The utility model discloses a kind of gas generating set radiators, including water inlet chamber, oil inlet chamber and air inlet chamber connected in order from head to tail, water inlet chamber, oil inlet chamber and air inlet chamber form annular structure;Water inlet chamber, oil inlet chamber and the lower side of air inlet chamber are installed with water return chamber, oil return chamber and air return chamber connected in order from head to tail, water inlet chamber and water return chamber, oil inlet chamber and oil return chamber, air inlet chamber and air return chamber between are all installed with radiating core body;The inner ring of annular structure formed by water inlet chamber, oil inlet chamber and air inlet chamber is fixedly installed with conic shell, conic shell is fixedly installed with straight cylinder shell being set along vertical direction, straight cylinder shell inner chamber bottom is installed with upward suction axial fan of gas.The gas generating set radiator provided by the utility model can solve the problems of low integration of various medium heat dissipation and high airflow resistance and energy consumption in the heat dissipation process.

The utility model belongs to the steel smelting technical field, specifically disclose a furnace bottom ventilation heat dissipation structure, including base plate, protection structure, reinforcing component and ventilation mechanism, the centre of base plate top end is installed the furnace body, the protection structure sets up between the both sides of base plate, is used to shelter from the sun and protect this ventilation heat dissipation structure, the vertical board is welded respectively between the front and back of base plate top end both sides, reinforcing component is installed between each vertical board and furnace body and supports the reinforcing. This furnace bottom ventilation heat dissipation structure installs the ventilation mechanism below between base plate and furnace body, and the support plate of base plate top both sides is fixed the pipe respectively through silica gel ring, and starts liquid pump, can be guided into cooling water by the liquid inlet pipe of upper right corner, makes it flow through every place of pipe, and then is guided out from the liquid outlet pipe, and the fan in the front and back support plate is cooperated, and the airflow after cooling is blown to the bottom of furnace body, reaches the purpose of rapid cooling, solves the problem that the cooling effect is not good.

The application provides a liquid outlet device and a liquid cooling tank. The liquid outlet device comprises a cavity. The cavity is arranged in the liquid cooling tank and communicates with the inside of the liquid cooling tank. One side of the cavity is provided with an opening. A filter screen is arranged on the opening. A vortex prevention device is arranged in the cavity. A liquid inlet channel of the vortex prevention device communicates with the inside of the cavity. The liquid inlet channel extends along the radial direction of the vortex prevention device to a liquid outlet channel of the vortex prevention device and communicates with the liquid outlet channel. The liquid outlet channel of the vortex prevention device extends out of the cavity. In the case that the liquid coolant in the inside of the liquid cooling tank overflows into the inside of the cavity through the filter screen, the liquid coolant in the inside of the cavity flows out of the cavity through the vortex prevention device. The application improves or solves the problem of reduced heat dissipation efficiency caused by the liquid outlet device of the liquid cooling tank mixing a large amount of air bubbles into the main pipeline, and improves the heat dissipation efficiency.

The utility model relates to the technical field of generator heat insulation, and discloses a heat insulation structure for a generator end cover, which comprises an end cover body and a heat dissipation assembly which is detachably arranged on the end cover body, a plurality of heat dissipation grooves are arranged on the end cover body close to the outer edge in a penetrating manner and are annularly distributed relative to the end cover body; the end, close to the heat dissipation assembly, of the end cover body is fixedly provided with a connecting fence, the end, away from the heat dissipation assembly, of the connecting fence is provided with an air guide frame in an inserted mode, the frame, close to the connecting fence, of the air guide frame is designed in a beveling mode, and the connecting fence is provided with positioning bolts from top to bottom. According to the heat insulation structure for the generator end cover, when the air guide frame is installed, the insertion blocks are aligned with the insertion grooves of the connecting fences to be inserted until the air guide frame is completely embedded into the positioning grooves, the air guide frame can be conveniently, rapidly and accurately installed, the beveled frame design can guide airflow to smoothly pass through the heat dissipation grooves, and the heat dissipation efficiency of the end cover is improved; meanwhile, the insertion blocks are matched with the insertion grooves and the positioning grooves to prevent the air guide frame from shaking, and stable work of the air guide frame is guaranteed.

The utility model relates to a kind of cement stabilized macadam mixing devices of admixture recycling powder, it is related to recycling powder mixing technical field, including pre-stirring cooling cylinder, the top of pre-stirring cooling cylinder is provided with feed inlet, the inside opposite side between pre-stirring cooling cylinder is all provided with stirring assembly, the outer surface wall of pre-stirring cooling cylinder is provided with annular body, the top of annular body is provided with annular rack;Beneficial effect: by pre-stirring cooling cylinder, aggregate and recycling powder can be first stirred and mixed by stirring assembly, the heat absorption capacity of aggregate is reduced recycling powder temperature, then by fan device, the inside of pre-stirring cooling cylinder can be blown and cooled, water component is used to let the spray head body can be conveniently sprayed to carry out cooling treatment, which can accelerate the cooling efficiency of recycling powder, as far as possible can save time, and the cement stabilized macadam mixing efficiency is improved.

Provided is a cooling device with improved cooling efficiency. The cooling device is a cooling device that cools a semiconductor component mounted on a surface of a substrate, and includes: a base that is attached to a back surface of the substrate; and a bottom plate that is disposed apart from the base, wherein a recessed portion that is recessed toward the substrate is formed in a region of a surface of the base that faces the bottom plate and corresponds to the semiconductor component.

The utility model discloses a kind of feed additive granule cooling equipment, including bearing base and cooling roller, the top end both sides of bearing base are vertically installed with support seat, the opposite side wall of two support seat is installed with carousel;The side wall of one side carousel is installed with fixed disc a, the side wall of the other side carousel is installed with fixed disc b, the cooling roller is assembled between fixed disc a and fixed disc b;The setting of this feed additive granule cooling equipment, structure design is reasonable;By setting cooling fin on the inner wall of cooling roller upper and lower two sides, and setting ventilation hole and assembling fan assembly outside drum, good ventilation and heat dissipation structure is formed.Fan assembly forced ventilation, cooperate cooling fin to increase heat dissipation area, so that feed additive granule can be in contact with cold air in the process of drum rotation, greatly improve cooling efficiency.

The application provides a large vertical machine tool water-cooling oil-immersed direct-drive permanent magnet driving motor, which comprises a base and a work rotary table, an annular cavity is arranged in the base, a rotor assembly and a stator assembly are arranged in the annular cavity, the rotor assembly is installed on the work rotary table, the stator assembly is installed on the base, a cross roller bearing is arranged between the base and the rotor assembly, an inner ring of the cross roller bearing is installed on the base, and an outer ring is installed on the rotor assembly; an encoder is arranged between the base and the work rotary table; the annular cavity is filled with cooling machine oil to form an oil-immersed cooling system, a water cooling assembly is further arranged in the annular cavity, and an oil inlet and outlet interface is arranged at the bottom of the base and is communicated with the annular cavity. Through the above structure, the application has high cooling efficiency, direct driving without gap, high carrying capacity, and is suitable for heavy load high-precision machining above 10T.

The utility model discloses a kind of hydrogen energy power generation systems of quick heat dissipation, including outer frame, be set on base and be provided with hydrogen energy power generation module inside;Several open and close doors, hinged on outer frame and be provided with electric louvers on open and close door;Several heat dissipation fans, fixed in outer frame top and into positive pressure air to outer frame inside;The base is equipped with cavity, and the circuit of the hydrogen energy power generation module is laid in base cavity.This hydrogen energy power generation system can realize power generation function by setting power generation module inside outer frame, simultaneously, by setting heat dissipation fan and electric louvers, the ventilation inside can be guaranteed, it is convenient to quick heat dissipation, and by laying circuit in the cavity inside base, the temperature inside outer frame can be reduced, effectively guarantee the normal operation of hydrogen energy power generation system.

The utility model relates to a high temperature stove copper electrode cooling device, including the outer tube and the inner tube, the inner tube vertical installation in the inside of outer tube, just the inner tube with outer tube coaxial arrangement, the inner tube with the inner peripheral wall of outer tube keeps to have cooling cavity, the outer tube with the opposite side of inner tube all is set up with a plurality of annular grooves, the outer tube with the opposite side of inner tube still is set up with a plurality of vertical grooves, the vertical groove with the annular groove is cross distribution, in the outside of outer tube and close to its bottom end place communication has the water inlet pipe, the water inlet pipe with cooling cavity intercommunication. This high temperature stove copper electrode cooling device, the cooling cavity cooperation of outer tube and inner tube forms the high thermal conductivity of brass material, makes electrode heat can quickly transfer to the cooling liquid, the recess structure of cross distribution increased the contact area and heat exchange time, significantly promoted the cooling efficiency, can adapt to the high strength heat dissipation demand of high temperature stove.

The utility model relates to an exhaust cooling device of a 3D (three-dimensional) printer, which is used for heat dissipation of a nozzle driving power supply of the 3D printer and comprises a shell, an air inlet is arranged at the front end of the shell, the shell is connected with an air feeder through an air inlet pipe, an air outlet is arranged at the rear end of the shell, and an airflow channel is arranged in the shell. A plurality of nozzle driving power sources are arranged in the airflow channel in the airflow direction, a nozzle control circuit board is arranged on the upper surface of a top plate of the shell, and the top plate is a heat conduction plate and can conduct heat of the circuit board into the airflow channel and take away the heat by airflow. Connecting wings are arranged on the two sides of the shell, so that the device can be conveniently installed on the 3D printer. The lower part of the front end of the shell is provided with a plurality of wire passing windows for connecting flat cables of the nozzle driving power supply and the printer nozzle to pass through. The air flow channel, the heat conduction structure and the installation design are adopted, the heat dissipation efficiency is remarkably improved, the operation temperature of equipment is reduced, the service life is prolonged, meanwhile, installation and maintenance are convenient, and applicability is high.