3248results about How to "Guaranteed cooling effect" patented technology

The invention relates to the technical field of server heat dissipation optimization, in particular to an intelligent heat dissipation control optimization method and system for a server, and the method comprises the steps: obtaining the temperature information of each region of the server and the working load data of the server; based on the temperature information, constructing multi-dimensional thermal field topological mapping; executing group theory base heat flow dynamic analysis according to the multi-dimensional thermal field topological mapping; performing spectral decomposition heat dissipation efficiency evaluation based on a group theory basis heat flow dynamic analysis result; according to the spectral decomposition heat dissipation efficiency evaluation result and the workload data, nonlinear heat transfer optimization is executed; a self-adaptive feedback control strategy is generated and used for adjusting a heat dissipation system of the server, accurate description of internal temperature distribution of the server is provided by a multi-dimensional thermal field topology mapping technology, and a foundation is laid for subsequent optimization; the group theory-based heat flow dynamic analysis method deeply reveals the essential law of heat transfer; the spectrum decomposition heat dissipation efficiency evaluation provides a brand new performance quantitative index, and the heat dissipation efficiency of the system is improved by more than 20%.

The invention relates to an electric energy metering box, and relates to the technical field of metering boxes, the electric energy metering box comprises a box body and a box door hinged to the box body through a hinge shaft, and the side surface of the box body is provided with a plurality of heat dissipation ports; a plurality of supporting plates are fixedly arranged on the inner wall of the box body, a mounting plate for mounting related electrical equipment is jointly and fixedly arranged on the end parts, far away from the box body, of the plurality of supporting plates, and a circulation gap is preset between the mounting plate and the inner wall of the box body; according to the electric energy metering box, due to the cooperative arrangement of the circulation gap and the heat dissipation opening, in the application process of the electric energy metering box, air in the box body can have enough circulation space through the arrangement of the circulation gap, and exchange of internal and external air can be carried out in time through the heat dissipation opening, so that the heat dissipation performance of the electric energy metering box is ensured; and potential safety hazards caused by insufficient heat dissipation are reduced.

The invention relates to the technical field of liquid cooling devices, and discloses a liquid cooling heat dissipation leakage-proof device and a liquid cooling system.The liquid cooling heat dissipation leakage-proof device comprises a leaked liquid collecting assembly and a leaked liquid flow guide pipe, the liquid cooling device comprises a first plate and a second plate, the bottom edge of the second plate is connected to the edge of the first plate, and the bottom edge of the second plate is connected to the edge of the second plate; a liquid cooling channel for cooling liquid to circulate is arranged between the second plate and the first plate, the leaked liquid collecting assembly is arranged on the edge where the second plate and the first plate are connected in a surrounding mode, and when leaked liquid leaks from the edge where the second plate and the first plate are connected, the leaked liquid can flow into the leaked liquid collecting assembly; the leaked liquid guide pipe is communicated with the leaked liquid collecting assembly, so that the cooling liquid collected by the leaked liquid collecting assembly can be guided out to prevent the cooling liquid from flowing to an electronic device in the server, and therefore, the cooling effect of the liquid cooling device and the operation safety of the server can be ensured.

The invention relates to the technical field of motors, and provides a multi-cooling permanent magnet synchronous variable frequency motor which comprises a shell, a stator and a rotor and further comprises a plurality of cooling fins, a cooling fan, a water cooling mechanism and a driving mechanism, the cooling fins are fixedly connected to the outer portion of the shell, the cooling fan is coaxially and fixedly connected with the rotor, and the water cooling mechanism is fixedly connected with the stator. An air outlet is formed in the shell, the water cooling mechanism is used for conducting water cooling on the shell and comprises a cold water pipe and a heat dissipation pipe network, the cold water pipe penetrates through the multiple cooling fins, the top of the heat dissipation pipe network communicates with the top of the cold water pipe through a water supply pipe, and the bottom of the heat dissipation pipe network communicates with the bottom of the cold water pipe through a water return pipe; the heat dissipation pipe network is located outside the shell and corresponds to the air outlet in position, and the driving mechanism is used for driving cold water to circularly flow in the cold water pipe and the heat dissipation pipe network. By means of the technical scheme, the problem that in the prior art, a single cooling mode is limited in cooling effect is solved.

The invention relates to the technical field of electronic equipment, and discloses a piezoelectric heat dissipation device and a heat dissipation system.The piezoelectric heat dissipation device comprises a shell, a connecting assembly and a piezoelectric assembly, the piezoelectric assembly is arranged in the shell and connected with the shell through the connecting assembly, and the piezoelectric assembly comprises a first piezoelectric element, a vibrating diaphragm, a supporting frame and a jet plate which are sequentially connected in the first direction; a jet hole is formed in the jet plate, and an energy conversion cavity communicated with the jet hole is defined by the vibrating diaphragm, the supporting frame and the jet plate; the shell comprises a shell body and an air outlet cover plate, the shell body is provided with an opening facing the jet flow plate in the first direction, the air outlet cover plate covers the opening and is provided with an air outlet communicated with the jet flow hole, and the shell body is further provided with an air inlet communicated with the jet flow hole. The piezoelectric heat dissipation device is simple in structure and easy to miniaturize, and the structural arrangement of the heat dissipation system is beneficial to improving the heat dissipation effect of the piezoelectric heat dissipation device.

The invention relates to the technical field of conveying equipment, and particularly discloses a conveying device for rice wine production, which comprises a rack, the rack is provided with a conveying assembly, scattering mechanisms and a cleaning mechanism, each group of scattering mechanism comprises a rotating shaft, a driving assembly, a scattering assembly and a driving structure I. The driving assembly is used for driving the rotating shaft to rotate, and the number of the scattering assemblies is two. Each scattering assembly comprises a plurality of scattering rods, each scattering rod is perpendicular to the axial direction of the rotating shaft and is in sliding fit with the rotating shaft in the radial direction of the rotating shaft, the first driving structure is used for driving the scattering rods to move in the radial direction of the rotating shaft, the cleaning mechanism comprises a first scraping plate, and the end of the first scraping plate makes contact with the peripheral side of the rotating shaft; according to the rice cooling device, gathered rice can be scattered through rotation of the scattering rods, the cooling speed is increased, the rice attached to the outer sides of the scattering rods can be removed through sliding between the scattering rods and the rotating shaft, and meanwhile the rotating shaft can be cleaned through the first scraper blade.

The invention belongs to the technical field of energy storage equipment, and particularly relates to a top immersed type battery pack which comprises a first partition plate, the first partition plate divides a box body into a battery cabin and an electrical cabin, the battery cabin is provided with a plurality of second partition plates at intervals in the width direction, and the second partition plates enable a plurality of mounting grooves to be formed in the battery cabin. The plurality of battery modules are respectively mounted in the corresponding mounting grooves, elastic fillers are arranged between the plurality of battery modules and the box body as well as between the plurality of battery modules and the first partition plate, and the insulating cooling liquid is arranged at the tops of the battery modules; through the arrangement of the first partition plate, the second partition plate and the elastic filler, the use amount of the insulating cooling liquid is reduced, and the cost is saved; the cooling liquid on the periphery of the battery module is reduced, the top of the battery module is immersed in the cooling liquid, and compared with overall immersion, the heat dissipation effect can still be ensured while the use amount is reduced.

The invention provides a flat heat dissipation axial magnetic flux motor which comprises a heat dissipation assembly, and the heat dissipation assembly comprises a rotor disc, a rotor shaft, an inner core, a first flow channel, a second flow channel, a piston, an oil storage box, cooling fins, fan blades, a flow guide pipe, a sealing plate, a mounting disc and a magnetic block. And the rotor shaft is fixedly connected to the interior of the rotor disc. The rotor shaft drives the mounting disc to rotate, cooling oil flows into the first flow channel on the right side, then sequentially flows through the right flow guide groove, the left flow guide groove, the first flow channel on the left side, the second flow channel and the flow guide pipe and finally circulates into the oil storage box, the cooling oil circulates along with continuous rotation of the rotor disc, and then heat dissipation of the rotor can be achieved; cooling oil flowing into the oil storage box from the flow guide pipe makes contact with the cooling fins, the cooling oil can be cooled through the cooling fins, efficient cooling of the rotor is achieved by adopting an internal circulation mode of the cooling oil, and installation and use of the motor are not affected.

The invention relates to the field of charging piles, and particularly discloses a high-power liquid cooling charging pile which comprises a control module, a liquid cooling module, a charging module, a charging cable, a charging head and an immersion box, and the charging module is located in the immersion box; the liquid cooling template comprises a cold liquid storage box, a radiator and a reflux pump, an outlet of the immersion box is connected with a liquid outlet pipe, an outlet of the cold liquid storage box is communicated with an inlet of the immersion box through a liquid return pipe, and the reflux pump is installed on the liquid return pipe; the liquid outlet pipe and the inlet of the cold liquid storage box are connected in parallel with a plurality of radiators with different heat dissipation efficiency; the end, close to the radiators, of the liquid outlet pipe is provided with a control valve for controlling cooling liquid to selectively enter one radiator, and the end, away from the radiators, of the liquid outlet pipe is provided with a first temperature sensor.

The invention provides a distributed AC / DC uninterruptible power supply system, which comprises a PLC main control module and a power supply monitoring controller, the AC-DC rectifier module provides a main power supply for the system; the alternating-current and direct-current inverter is used for current conversion and providing an uninterrupted alternating-current power supply; the static switch performs power supply switching between the battery pack and the commercial power; the direct-current starting module activates a direct-current starting function and realizes alternating-current and direct-current uninterruptible power supply; the four-port isolation module realizes current single-phase flow of the battery pack and the intelligent charger; the battery management module is used for uninterruptedly supplying power; the intelligent heat dissipation module is used for automatically dissipating heat in a high-power operation state; and the human-computer interface and the configuration software are used for displaying the operation data and the operation state in real time and carrying out remote management. The battery pack is in an off-line mode; a high-speed switch is adopted for switching, a complete battery management system is adopted, the service life of a battery pack is prolonged, reliable alternating-current and direct-current uninterruptible power supply is achieved, faults are reduced, and intelligent power supply management is achieved.

The invention discloses an energy-saving and environment-friendly intelligent outdoor box-type substation, and belongs to the technical field of box-type substations, and the substation comprises a box-type housing, and the side wall of the box-type housing is provided with a heat dissipation window in a penetrating manner; the sealing assembly comprises a filtering mechanism and a drying mechanism, the filtering mechanism is installed at a port of the heat dissipation window and used for isolating and filtering out particle impurities in the air, the drying mechanism is arranged in the heat dissipation window in a sliding mode and used for adsorbing and removing water vapor in the air, and separation and combination with the filtering mechanism are achieved through sliding of the drying mechanism; the opening is used for opening or closing the radiating window; the flow guide assembly comprises a solar top cover and a fan; the rainfall assembly is arranged at the bottom of the outer edge of the solar top cover and located above the sealing assembly, and the rainfall assembly is used for synchronously driving the sealing assembly and the flow guide assembly during rainfall; and the water accumulation assembly is arranged on the outer side of the bottom of the box type shell and located below the sealing assembly, and the water accumulation assembly is used for locking the water falling assembly and sealing the sealing assembly when water is accumulated on the ground.

The invention relates to the technical field of pumps, in particular to a centrifugal pump with adjustable heat dissipation capability, which comprises a motor, a pump shell, a water storage cover and the like, a pump shell is arranged in front of the motor; a water storage cover used for cooling the motor is arranged on the outer side of the motor, and the water storage cover and the outer side of the motor jointly form a water-cooling heat dissipation space. According to the invention, water transmitted in the pump shell is directly contacted with the motor shell and the heat dissipation fins, which is different from the prior art, so that the problem that the original heat dissipation effect of the heat dissipation fins is reduced because the heat dissipation fins are blocked by a cooling water pipe because the cooling water pipe is wound on the motor shell and the contact area between the heat dissipation fins and the outside is reduced is solved; and moreover, an existing heat dissipation mode that water transmitted in the pump shell is in direct contact with the motor shell and the heat dissipation fins is adopted is different, water does not circulate in the cooling water pipe to exchange heat dissipated by the heat dissipation fins, and the heat dissipation effect on the motor is enhanced.

The invention discloses tea polyphenol component detection equipment for jasmine tea and a detection method thereof. The tea polyphenol component detection equipment comprises a spectrophotometer host, and the lower end of the spectrophotometer host is fixedly connected with a bottom support bin. Through the arrangement of the grinding box and the crushing knife rest, in the use process, jasmine tea needing to be detected is placed in the grinding box, then the pressing frame is assembled, through the pressing frame and second filter cloth, the movable space of the jasmine tea is limited, the jasmine tea is made to be close to the crushing knife rest, and therefore the crushing speed is increased; a solvent is placed in the grinding box, separation of tea polyphenol is accelerated through rotation of the crushing knife rest, meanwhile, sufficient extraction of the tea polyphenol can be guaranteed, the solution is directly filtered through the second filter cloth, the solution is taken out through the suction pipe and placed in the cuvette, then the cuvette is placed in the sample chamber, detection can be conducted, overall use is simple, and the detection efficiency is high. The device can directly measure on site, integrates components required by detection into a whole, and is convenient to carry.

The invention relates to a cable branch box, and relates to the technical field of branch boxes, the cable branch box comprises a box body and a box door installed on the box body, and the vertical side surface of the box body is provided with a heat dissipation port; an upper protective cover with an upward opening is fixedly arranged on the inner edge of the opening of the heat dissipation opening of the box body, a lower protective cover with a downward opening is fixedly arranged on the outer edge of the opening of the heat dissipation opening of the box body, a barrier plate is fixedly arranged on the edge of the opening of the lower protective cover, and a plurality of barrier holes are formed in the barrier plate; according to the cable branch box, in the application process of the cable branch box, the possibility that external impurities enter the box body is reduced through the arrangement of the upper protective cover, the lower protective cover and the blocking holes; and high-temperature gas in the box body can be discharged to the outside through the heat dissipation openings and the blocking holes, so that circulation of gas inside and outside the box body is realized, and the heat dissipation performance of the box body is ensured.

The present invention discloses a shared suspended charging pile for new energy vehicles, and relates to the technical field of charging piles. The shared suspended charging pile for new energy vehicles comprises a mounting base, a slide is provided on the mounting base, a threaded rod is rotatably connected inside the slide, a first drive motor is fixedly installed on one side of the mounting base, an output end of the first drive motor is fixedly connected to the threaded rod, a moving block is slidably connected inside the slide, the inside of the moving block is threadedly connected to the surface of the threaded rod, a moving sealing box is fixedly installed on one end of the moving block away from the mounting base, so that the charging pile moves downward and moves to the top of the new energy vehicle, so that the position and height of the charging pile can be adjusted according to the needs of use, so that the new energy vehicle can be charged, the convenience of charging the new energy vehicle is improved, the space occupation is reduced, and the waste of the shared charging station area is reduced.

The invention provides a motor end cover and an industrial motor, the motor end cover comprises an end cover body and a fan housing, the end cover body is provided with an inner side surface used for being assembled with a non-driving end of the motor and an outer side surface located at the outer side of the inner side surface, the outer side face comprises a fan blade assembly face located in the center area of the outer side face and an air guide ring face located in the edge area of the outer side face and arranged around the fan blade assembly face, the fan housing is arranged around the radial outer side of the end cover body, and an air outlet channel of the centrifugal fan blade is formed between the fan housing and the air guide ring face. A plurality of partition pieces are arranged between the fan housing and the air guide ring face and divide the air outlet channel into a plurality of cooling channels, and the cooling channels extend in the axial direction of the end cover body. According to the invention, air flow guide can be formed before the air outlet flow of the centrifugal fan blades enters the heat dissipation flow channels among the heat dissipation fins of the subsequent motor shell, so that the initial air speed value of the cooling air flow entering the heat dissipation flow channels of the motor shell is effectively increased, and the heat dissipation effect is enhanced.

The invention belongs to the technical field of battery thermal management systems, and particularly relates to a battery thermal management system and a control method and device of a compressor in the battery thermal management system. The method comprises the steps that in the operation process of a compressor in a refrigerant circulation loop of the battery thermal management system, when the actual water outlet temperature between a water outlet of a heat exchanger in a water circulation loop of the battery thermal management system and a water inlet of a battery pack is reduced to the difference between the actual water outlet temperature and a target water outlet temperature which is smaller than or equal to a first set temperature difference; and controlling the compressor to decelerate. As the actual outlet water temperature is close to the temperature of the battery pack at the moment, even if the compressor runs at a reduced speed and the refrigerating capacity is reduced, the cooling of the battery pack is not influenced, and the refrigerating effect of the battery heat management system is not influenced; therefore, according to the control method of the compressor in the battery thermal management system, the refrigeration effect is guaranteed, and the energy consumption of the compressor is reduced.

The invention discloses a hydrophilic material and a hydrophobic material, a preparation method of the hydrophilic material and the hydrophobic material, and a gas-liquid separation filtering device equipped with the hydrophilic material and the hydrophobic material, the hydrophilic material comprises a substrate surface which is etched into a micro-nano structure, and a hydrophilic layer is formed on the surface of the substrate; the hydrophobic material comprises a base material and a hydrophobic layer, the surface of the base material is etched into a micro-nano structure, and the hydrophobic layer is formed on the surface of the base material; the windward side of the filtering device for gas-liquid separation is made of a hydrophilic material, the air outlet side of the filtering device for gas-liquid separation is made of a hydrophobic material, the hydrophilic material and the hydrophobic material can be folded surfaces or curved surfaces, and water gathered by the hydrophilic material and water intercepted by the hydrophobic material are recycled through water guide holes; the hydrophilic material is formed by carrying out surface plasma treatment activation on a base material and carrying out surface polymerization modification on a hydrophilic monomer; the hydrophobic material is prepared from a base material through surface plasma treatment activation and hydrophobic monomer surface polymerization modification. According to the cooling tower, the heat dissipation and cooling performance of the cooling tower can be guaranteed while the water resource recycling efficiency is guaranteed.

The invention discloses a servo motor casing structure convenient for heat dissipation, which belongs to the technical field of motors and comprises a casing, end covers are detachably mounted at two ends of the casing respectively, a plurality of heat dissipation fins are distributed on the side wall of the casing, and two independent cooling channels are arranged in the inner wall of the casing; the oil cooling channel is composed of a plurality of wide channels which are circumferentially distributed at equal intervals, and the water cooling channel is composed of a plurality of gap channels which are circumferentially distributed at equal intervals; the two ends of the machine shell axially and symmetrically extend to form inner protruding edges, and the oil cooling channels are distributed in the inner protruding edges in a penetrating mode. An oil inlet ring and an oil discharge ring are symmetrically arranged on the machine shell, are both distributed between the machine shell and the end cover, and are respectively communicated with two sides of the oil cooling channel; amplitude modulation units are slidably arranged at the positions, located on the peripheries of the inner protruding edges, of the machine shell, and the two amplitude modulation units can be matched to adjust the effective circulation length of each gap channel in the water cooling channel; the oil cooling channels and the water cooling channels are arranged correspondingly, so that the heat dissipation effect of the case is improved.

The invention relates to an adjustable computer heat dissipation device and a heat dissipation method.The adjustable computer heat dissipation device comprises a computer mainframe box, a heat dissipation module, an adjusting module and a controller, the heat dissipation module is fixedly connected with an installation assembly, the heat dissipation module comprises fan blades and cooling fins, the fan blades are electrically connected with a driving part, and the driving part is connected with the installation assembly; the adjusting module comprises a replacement plate, a heat dissipation cavity is formed in the replacement plate, a plurality of air flow pipelines are installed in the heat dissipation cavity, the outer side walls of the air flow pipelines are sleeved with deformable rings, energy storage cavities are formed between the air flow pipelines and the deformable rings, and through holes are formed in one ends of the air flow pipelines; the controller is in signal connection with a monitoring assembly, and the controller adjusts the power of the driving part according to real-time temperature data monitored by the monitoring assembly. Compared with the prior art, the detachable and adjustable design enables the heat dissipation equipment to easily adapt to computer mainframe boxes of different models and specifications, and the heat dissipation performance can be automatically adjusted according to temperature and wind speed data monitored in real time.

The utility model relates to the technical field of cranes, and provides a portal crane control box which comprises a cabinet body, heat dissipation grooves which are evenly distributed are formed in one side of the cabinet body, a filter plate covers the area of the heat dissipation grooves, an electric hoist control unit and a walking vehicle control unit are integrated in the cabinet body, a rotatable dust collection piece is arranged on the filter plate, and the dust collection piece is connected with the electric hoist control unit and the walking vehicle control unit. A dust collection fan is arranged on the cabinet body; the cabinet body is provided with a signal receiver used for receiving a control signal sent by the remote controller and a controller used for processing the signal and making a corresponding control command; the electric hoist control unit and the walking vehicle control unit are integrated in the cabinet body and share one control box, circuit arrangement is simplified, remote control is adopted for operation and control, operation is fast and convenient, the use efficiency of the crane is greatly improved, in addition, when a filter plate needs to be cleaned, dust adhering to the filter plate is sucked away through suction force generated by a dust suction fan, and the cleaning efficiency is improved. The filter plate is smooth, and the heat dissipation effect of the control box is ensured.

The invention provides a metal magnetic powder core production process capable of utilizing waste materials, belongs to the technical field of metal magnetic powder cores, and solves the technical problem that metal waste materials cannot be directly utilized to produce metal magnetic powder cores in an existing metal magnetic powder core production process. The method comprises the following steps: smelting an alloy; pulverizing the waste materials; adding materials and preparing powder; insulating coating; and pressing and annealing. According to the metal magnetic powder core machining device, mechanical waste materials are smelted and crushed, the waste materials can be directly utilized for metal magnetic powder core machining, compared with existing chemical cleaning, large-scale popularization and utilization are facilitated, the leakage hole is formed in the bottom of the smelting furnace, and under the action of the rotating plate rotationally arranged at the bottom of the leakage hole, the metal magnetic powder core machining efficiency is improved. The smelting furnace can directly smelt the magnetic metal waste through the cooling box, granulation is conducted through the rotating plate, the recycling effect of the waste is ensured, and the screen is arranged in the cooling box to collect metal particles.

The invention discloses a hydrogen fuel cell unmanned aerial vehicle with a liquid cooling heat dissipation structure. The hydrogen fuel cell unmanned aerial vehicle comprises an unmanned aerial vehicle body, a hydrogen fuel cell system, a heat dissipation vehicle arm with an inner cavity, a liquid distribution header pipe, a first water pump, a liquid guide downstream pipe, a liquid guide backflow pipe, a propeller, a flow uniformizing mechanism and a liquid collection header pipe. Cooling liquid absorbing heat is evenly distributed to each liquid distribution branch pipe through the liquid distribution header pipe and the flow uniformizing mechanism and then flows into the liquid guide downstream pipe and the liquid guide backflow pipe in the heat dissipation machine arm for heat dissipation, rotor wing wind of a propeller is fully utilized for heat convection heat dissipation, and then the cooling liquid is circulated into a hydrogen fuel cell system through the liquid collection header pipe. Water-cooling heat dissipation is adopted in the whole process, meanwhile, a water-cooling heat dissipation device is combined with the unmanned aerial vehicle frame, the vehicle arms of the unmanned aerial vehicle frame serve as heat dissipation devices, an additional heat dissipation device structure can be omitted, the weight can be reduced, rotor wing wind is fully utilized for heat convection, heat dissipation fan components can be omitted, the weight is reduced, and therefore the heat dissipation effect is guaranteed, and meanwhile the heat dissipation efficiency is improved. And the weight is reduced.

The invention belongs to the technical field of semiconductors, and provides a cleavage method, which adopts non-mechanical means such as etching, corrosion and the like to avoid the action of mechanical stress on a slice wafer, thereby greatly reducing the possibility of cracks on the end face of the slice wafer. Specifically, the cleavage method is implemented according to the following steps: growing silicon oxide on the back surface of a thin wafer to form a mask layer; coating photoresist on the surface of one side, deviating from the sheet wafer, of the mask layer to form a second glue layer; photoetching the second adhesive layer to construct a second cleavage region which is overlapped with the first cleavage region on the front surface of the thin wafer; removing silicon oxide on the mask layer relative to the position of the second cleavage region; coating at least two layers of photoresist on the front surface of the thin wafer to form a first adhesive layer; photoetching the first adhesive layer, and displaying a first cleavage area through a developing step; performing dry etching on the front surface of the sheet wafer; and performing wet etching on the back surface of the sheet wafer.

The utility model discloses a composite cable which comprises a composite cable, a plurality of supporting plates are vertically arranged in the composite cable at intervals, a center hole is formed in the center of each supporting plate in a penetrating mode, a plurality of through holes are horizontally formed in each supporting plate in a penetrating mode, and an air inlet cylinder is inserted in the center hole of each supporting plate in a penetrating mode. A communication cable and a conductive cable are inserted into the multiple through holes of the supporting plate in a penetrating mode, a supporting frame is vertically fixed to the outer end face of the supporting plate, and an exhaust cylinder is inserted into the supporting frame in a horizontal penetrating mode. According to the utility model, the problem that the heat dissipation effect of the composite cable is affected due to the fact that heat generated by the transmission cable core is accumulated in the composite cable and cannot be quickly dissipated and discharged because the existing composite cable is not provided with a heat dissipation structure is solved.

The invention relates to the field of injection molding, and discloses an injection molding machine transmission gear box which comprises a gear box and a heat dissipation component, parts in the gear box are soaked in lubricating oil, lubricating grease does not need to be regularly and independently injected into a gear bearing in the gear box, the heat dissipation component comprises an outer shell, a heat dissipation assembly is arranged in the outer shell, and the heat dissipation assembly comprises a heat dissipation tank. An annular magnet is embedded in the outer circular face of the heat dissipation tank, a plurality of heat dissipation fins are arranged on the outer surface of the heat dissipation tank, lubricating oil can be centrifugally thrown out to the tank wall of the heat dissipation tank through the heat dissipation assembly, the lubricating oil flows downwards in a thin oil film state, and therefore the heat dissipation effect on the lubricating oil is improved, scrap iron in the lubricating oil can be made to be closer to the tank wall, and the service life of the lubricating oil is prolonged. The iron scrap is more easily captured by the annular magnet, the iron scrap removing effect is better, the cover plate of the gear box can be opened, and therefore parts in the gear box can be more conveniently disassembled and assembled.

The invention relates to the technical field of plastic particle preparation, and provides an antibacterial plastic particle preparation device which comprises an extruder and further comprises a water cooling mechanism and a drying assembly, the water cooling mechanism is used for conducting water cooling on extruded plastic thin strips, and the water cooling mechanism comprises a cold water bin, a water pump, a spraying pipe, a conveying roller and an air cooling assembly; the drying assembly comprises a drying box, a heat collection bin and a heat transfer pipe, the drying box communicates with the water cooling mechanism, the heat collection bin sleeves the exterior of a charging barrel of the extruder, the air supply box communicates with an air outlet box, the air outlet box communicates with the heat collection bin through a communicating pipe, and the heat transfer pipe communicates with the air outlet box; by means of the technical scheme, the problems that in the prior art, a cold water bin is exposed to the outside, and dust and impurities are prone to polluting plastic particles are solved.

The invention relates to the field of ship transportation, and discloses a device for liquefying boil-off gas of an LNG cabin and a liquid ammonia cabin through ship liquid hydrogen cold energy. The device comprises a cold box heat exchanger, wherein a liquid hydrogen cabin and an LNG tank / liquid ammonia cabin are both communicated with the cold box heat exchanger; a liquid hydrogen boil-off gas circulation passage is arranged between the cold box heat exchanger and the liquid hydrogen cabin, and liquid hydrogen boil-off gas flows into the cold box heat exchanger from the liquid hydrogen cabin through the passage; an LNG / liquid ammonia boil-off gas circulation passage is arranged between the cold box heat exchanger and the LNG tank / liquid ammonia cabin, and LNG / liquid ammonia boil-off gas flows into the cold box heat exchanger from the LNG tank / liquid ammonia cabin through the passage; an LNG / liquid ammonia circulation channel is further arranged between the cold box heat exchanger and the LNG tank / liquid ammonia cabin, and LNG / liquid ammonia flows into the cold box heat exchanger from the LNG tank / liquid ammonia cabin through the channel. According to the device, effective utilization of the cold energy of the hydrogen evaporation gas is achieved, and the energy consumption in the LNG or liquid ammonia evaporation gas cooling and liquefying process is further reduced.

The embodiment of the invention provides a chip packaging method and a chip packaging structure. The method comprises the following steps: providing a chip, a substrate, a heat dissipation cover plate and a heat conduction metal sheet; wherein a gas groove is formed in the surface of the heat-conducting metal sheet; the front face of the chip is fixed to the first surface of the substrate, the heat conduction metal sheet is arranged on the back face of the chip, the heat dissipation cover plate is fixed to the first surface of the substrate and arranged on the surface, away from the chip, of the heat conduction metal sheet, and a to-be-welded unit is obtained; the gas groove is filled with weld-aid gas; and the heat dissipation cover plate is welded and fixed on the back surface of the chip through the heat conduction metal sheet. According to the embodiment of the invention, the surface of the heat-conducting metal sheet and the surface of the gold-plated layer of the heat-dissipating cover plate are provided with the grooves, so that welding-aid gas can enter the grooves to be in full contact with the welding surface, the problem that formic acid gas is not easy to enter the welding surface is solved, cavities in the welding surface are avoided, and the heat-dissipating efficiency of the packaged chip is ensured.

The utility model discloses a heat dissipation structure of a liquid crystal display module, which relates to the technical field of liquid crystal display modules and comprises a liquid crystal display screen, a rear cover plate is arranged on the back of the liquid crystal display screen, a heat dissipation groove is arranged at the upper end of the surface of the rear cover plate, and a cooling box is mounted at the lower end of the surface of the rear cover plate. According to the heat dissipation structure of the liquid crystal display module, the cooling box, the heat dissipation fan, the semiconductor chilling plate and the like are arranged, and the heat dissipation fan is installed at the bottom of the rear cover plate, so that air is fed into the bottom of the rear cover plate and discharged from the heat dissipation grooves in the bottom, the exchange efficiency of internal and external airflow is improved, and the heat dissipation effect is improved; the semiconductor chilling plate is used for generating cooling capacity, air can be cooled, cold air is fed into the liquid crystal display module, cooling is achieved, the heat dissipation effect is guaranteed, the overall structure is simpler, the production cost and the machining difficulty are low, and the economic effect of a product is guaranteed.