18results about How to "Fast reflow" patented technology

The utility model provides a plant soilless culture incubator capable of accurately controlling temperature, which relates to the technical field of plant cultivation equipment and comprises a box body, a revolving door is mounted on one side of the box body, a group of vertical supporting legs are mounted at corners of the bottom of the box body, and a stabilizing plate is arranged on the outer side of the box body. A positioning groove is formed in the inner side of the bottom of the box body, a storage shell is installed in the positioning groove, and the two sides of the inner side of the box body are each provided with a partition plate. The supporting frame is arranged to be matched with a rapid locking and unlocking structure of the locking frame, the cultivation height can be flexibly adjusted according to the plant growth stage, and the requirement for mixed cultivation of multiple types of plants is met; the design of the multi-layer cultivation frame effectively improves the utilization rate of cultivation space, solves the problems that the space of a traditional cultivation box is fixed and plants are crowded after growing up, and also solves the problem that a traditional culture dish is fixed through bolts.

The invention discloses an active driving heat pipe, a control method and a computer readable storage medium, and relates to the technical field of heat pipes, the active driving heat pipe comprises a pipe body, a groove, a capillary layer and an active driving part, the heat pipe is filled with working fluid, and the working fluid absorbs heat and evaporates at a heat source end in the pipe, then diffuses to a condensation end, dissipates heat and then recovers the liquid state; the working fluid flows back to the heat source end through the groove or the capillary layer, and an active driving piece is arranged in at least part of the groove area and used for driving the working fluid to move towards the heat source end. According to the design, the active driving piece is additionally arranged in the heat pipe, the flowing speed of working fluid can be increased, and the heat dissipation performance of the heat pipe can be improved.

The invention discloses an ultrathin vapor chamber with a rhombic wire mesh type wick, and the wick is formed by weaving high-precision copper wires in a crossed manner, so that a dense rhombic net structure is formed. By means of the characteristic that fluid flow resistance in the connecting line direction of the vertexes of the two acute angles of the rhombus is small, a liquid working medium can be effectively promoted to rapidly flow back to the evaporation end under the capillary pressure effect, and therefore the quality of the working medium participating in phase-change heat exchange within unit time is improved, and the circulation rate of a working medium transmission loop is increased; therefore, the overall heat exchange performance of the vapor chamber is obviously enhanced. According to the ultrathin vapor chamber with the rhombic wire mesh type wick, the preparation process is compatible with the existing commercial ultrathin vapor chamber technology, sintering integration of the ultrathin vapor chamber and a lower shell plate of the vapor chamber can be achieved, and due to the characteristic, the overall thickness of the vapor chamber can be further reduced. And the urgent demand of the current miniaturized electronic equipment on an efficient and ultra-thin heat dissipation solution is met.

The utility model relates to the technical field of lead zinc ore beneficiation, in particular to a lead zinc ore dense medium grading selection-flotation combined separation system which comprises a dense medium separation system and a flotation system, and the dense medium separation system comprises a crushing and screening unit, a dense medium coarse fraction separation unit, a dense medium fine fraction separation unit and a fine ore water treatment unit. An outlet of the crushing and screening unit is divided into a coarse fraction outlet, a fine fraction outlet and a fine ore outlet, the coarse fraction outlet is connected with the dense medium coarse fraction separation unit, the fine fraction outlet is connected with the dense medium fine fraction separation system, and the fine ore outlet is connected with the fine ore water treatment unit. A coarse-fraction gravity concentrate outlet of the dense-medium coarse-fraction separation unit, a fine-fraction gravity concentrate outlet of the dense-medium fine-fraction separation unit and a concentrated fine ore outlet of the fine ore water treatment unit are respectively connected with the flotation system, so that the flotation system has the advantages of high economic benefit, low production cost, energy conservation, environmental protection and the like; and the lead-zinc ore beneficiation efficiency and the metal recovery rate are effectively improved.

This application relates to the field of battery manufacturing technology and provides a protective cap transfer device and a welding production line. The protective cap transfer device of this application includes a bracket with a loading end and a unloading end, two transfer devices respectively disposed at the loading end and the unloading end, and a conveying device arranged between the loading end and the unloading end; the loading end and the unloading end are arranged at a distance along a first direction, and the conveying device includes a fixture capable of reciprocating along the first direction; the transfer device at the loading end can remove the protective cap from the welded battery cell and transfer the protective cap to the fixture, which can then convey the protective cap to the transfer device at the unloading end, where the transfer device assembles the protective cap onto the battery cell before welding. The protective cap transfer device of this application reduces the time the battery cell spends at the welding station, lowers the waiting time of the welding equipment, improves the utilization rate of the welding equipment, and is beneficial to improving welding efficiency.

The utility model provides a three-flow-channel heat dissipation shell for a water-cooling heat dissipation cold plate, relates to the technical field of heat dissipation, and solves the technical problems of unreasonable flow channel structure arrangement, slow flow speed and poor pressure bearing capacity. The three-flow-channel heat dissipation shell for the water-cooling heat dissipation cold plate comprises a bottom shell with a containing cavity and a sealing cover which covers an opening of the bottom shell in a sealing mode. The heat dissipation fins are arranged in the middle of the containing cavity, intervals are reserved between the heat dissipation fins and the four edges of the containing cavity respectively, a first supporting frame and a second supporting frame are arranged at the intervals of the two opposite sides respectively, the first supporting frame is of a solid structure, the second supporting frame is of a hollow structure, and therefore three flow channels are formed among the three edges of the heat dissipation fins, the second supporting frame and the inner wall of the containing cavity. The flow channels are formed on the three sides of the heat dissipation fins, so that heat exchange media can flow into the flow channels on the two sides after passing through the heat dissipation fins and finally enter the flow channels with the water outlets, the speed is high, and the heat exchange effect is good; and by arranging the supporting frame, the pressure bearing capacity of the heat dissipation shell is improved.

The invention discloses a tree-shaped heat pipe, comprising a heat pipe shell, a capillary wick, a coolant and a plurality of tree-shaped structures; the heat pipe shell is a sealed shell, the tree-shaped structure sequentially passes through the evaporation section and the condensation section, and is attached to the inner wall of the heat pipe shell; a capillary wick and a coolant are provided in the evaporation section, the capillary wick is connected to the tree-shaped structure, and in the condensation section, except for the area occupied by the tree-shaped structure, other areas are super-liquid-repellent surface areas, and the tree-shaped structure is a super-liquid-loving surface area. The present invention uses a tree-shaped structure to coordinate super-liquid-repellent and super-liquid-loving interlaced mode, and utilizes a super-liquid-repellent surface to accelerate the cooling speed, and the super-liquid-loving surface attracts the liquid droplets condensed on the super-liquid-repellent surface, so that the tree-shaped heat pipe can realize the rapid transmission of the coolant, and effectively prevent the liquid droplets from affecting the heat exchange of the super-liquid-repellent surface. At the same time, the tree-shaped structure can reduce the flow resistance of the coolant on the super-liquid-loving surface, so that the coolant can quickly flow back to the heat pipe evaporation section, and improve the critical heat flux density of the heat pipe.

The utility model provides a gear shaft with lubrication belongs to mechanical technical field. It has solved the problem of complex structure of existing gear shaft. The gear shaft with lubrication of this utility model includes the hollow axle body, the outer gear is formed on the axle body upper end, the axle body lower end is vertically equipped with a ring of keyway, the lower end inner wall of axle body has a section of taper guide surface, the guide surface and axle body coaxial arrangement, the keyway upper end extends to the guide surface, the inside wall of axle body is horizontally formed with the support block, the support block upper side is equipped with the recessed cavity, the recessed cavity bottom wall is vertically penetrated with a ring of along the axle body circumferential distribution oil hole, every oil hole is opposite the guide surface setting, the side wall of axle body is equipped with the oil injection hole of making the recessed cavity communicate with the outside of axle body. The gear shaft with lubrication of this utility model simple structure.

The present invention discloses a low-noise generator set, and relates to the technical field of gasoline generators. The present invention comprises a gasoline tank, a gasoline generator is fixedly mounted on the bottom of the gasoline tank, a control box is fixedly mounted on one side of the gasoline generator, a cooling assembly is arranged on the gasoline generator, the cooling assembly is used to cool and dissipate heat for the gasoline generator, the cooling assembly comprises a plurality of evenly distributed heat pipe fixed copper sleeves arranged on the top of the gasoline generator, and a cold oil box and two heat exchange oil boxes are arranged on one side of the gasoline generator. The present invention can realize automatic cooling of the gasoline generator by arranging a cooling assembly and a heat collection assembly, and except for the regular replacement of cold oil by the infusion pump, other heat exchange processes are automatically carried out without power drive, which greatly reduces the noise generated during the cooling process, and at the same time, the cooling assembly and the heat collection assembly are both closely attached to the peripheral side of the gasoline generator, with a compact structure, small space occupation, and suitable for a variety of narrow spaces.

The utility model discloses a refrigeration mirror cabinet and a heat dissipation device for a semiconductor refrigeration module. The heat dissipation device comprises a refrigerant box (1) and a heat conduction pipe (2) located above the refrigerant box (1), and the two tail ends of the heat conduction pipe (2) are connected with the refrigerant box (1). The heat conduction pipe (2) comprises an inflow branch pipe (21), a conveying branch pipe (22), a heat dissipation branch pipe (23) and an outflow branch pipe (24), the outflow branch pipe (24) is located between the lower tail end of the heat dissipation branch pipe (23) and the refrigerant box (1), and the outflow branch pipe (24) is vertically arranged downwards or obliquely arranged downwards towards the refrigerant box (1), so that a refrigerant medium in the heat dissipation branch pipe (23) rapidly flows back into the refrigerant box (1). By optimizing the heat conduction pipe structure of the heat dissipation device, the refrigerant medium flows in the heat conduction pipe more smoothly, so that the heat dissipation capacity of the heat dissipation device is improved, and the refrigeration performance of the semiconductor refrigeration module is improved.

The invention discloses a multi-layer circuit board via hole non-stub preparation device, and relates to the field of multi-layer circuit board preparation, the multi-layer circuit board via hole non-stub preparation device comprises a multi-layer circuit board and a processing groove used for processing the surface of the multi-layer circuit board, the multi-layer circuit board is provided with a plurality of through holes, and the processing groove is fixedly connected with a moving track. A vertical moving assembly is fixedly connected to the moving end of the moving rail and used for driving the vertical moving assembly to move in the length direction of the processing groove. Local plugging of the through hole is achieved through the plugging assembly, the through hole is divided into a copper-plating-free area and a target copper-plating area through the two silicon rubber cases on the plug, only electroplating liquid is allowed to enter the target copper-plating area through the open hole in the connecting pipe, and generation of redundant copper columns is eradicated fundamentally; meanwhile, the check ring precisely limits the insertion depth of the plug, it is ensured that the copper plating area is precisely positioned, interference of the stub on high-speed signal transmission is effectively avoided, the signal integrity and reliability of the multi-layer circuit board are improved, and the use requirements of high-end electronic equipment are met.

The utility model relates to the technical field of bearings, in particular to an efficient heat dissipation type bearing ring which comprises an outer ring, a middle ring, an inner ring and a liquid injection structure, the inner side of a first shell in the outer ring is movably connected with the outer side of a raceway ring in the middle ring through balls, and the interior of the raceway ring is hollow to form a conical circulation pipeline and a conical exhaust hole. First liquid injection openings welded to the two sides of the conical circulation pipeline are connected with the upper end of the connecting pipeline through bolts, the inner side of a roller path ring in the middle ring is connected with the outer side of an inner ring body in the inner ring through bolts, and cooling liquid can be injected into a liquid storage tank and a liquid channel by pressing an insertion rod. The raceway ring is heated by friction in the rotating process, so that liquid in the liquid channel can be injected into the conical circulation pipeline through the connecting pipeline; and through the funnel-shaped channel in the conical pipeline, the rolling shaft can be heated to expand in the friction heating process, so that heat flow is guided by the conical pipeline, and liquid can rapidly pass through the conical pipeline to cool the bearing.

The utility model discloses a combined oil return sealing structure which comprises a main shaft, an oil slinger, an end cover and a labyrinth type oil seal. The main shaft is divided into a primary shaft and a secondary shaft from left to right, the radius of the primary shaft is smaller than that of the secondary shaft, the left end of the primary shaft penetrates through the transmission device, and an annular groove is formed in the right end of the primary shaft; the oil slinger is assembled on the primary shaft, the left side of the oil slinger is attached to the right side of the transmission device, and the right side of the oil slinger is attached to the left side face of the secondary shaft. The labyrinth type oil seal is installed on the secondary shaft in a clearance mode, a trapezoid ring groove and an annular boss are arranged on the outer side of the labyrinth type oil seal, the annular boss is in clearance fit with a groove in the corresponding position of the end cover, and a plurality of ring grooves are formed in an inner hole of the labyrinth type oil seal; a plurality of oil holes communicated with the annular groove are further formed in the labyrinth type oil seal, and an axial hole jointly communicated with the oil holes is further formed in the labyrinth type oil seal. According to the utility model, a sealing structure and a lubricating oil backflow path are optimized, the oil return efficiency is improved, and the risks of retention and oil degradation are reduced; meanwhile, the oil leakage risk is effectively reduced.

This utility model discloses a low-blow-gas, low-oil-consumption piston assembly suitable for hydrogen fuel cell engines, including a piston ring assembly and a piston; the piston has a first ring groove and a second ring groove arranged sequentially from top to bottom; the piston ring assembly includes a top ring and an oil scraper ring, which are respectively disposed in the first ring groove and the second ring groove; the top ring includes a ring body and a scraper, the lower end face of the ring body has a first groove that runs through the circumference, which extends from the outer edge of the ring body inward for embedding the scraper, and the scraper can extend and retract radially along the first groove; the ring body and the scraper are respectively provided with a first and a second opening that runs through the radial and axial directions, and the offset angle α of the two openings on the circumference satisfies 90°≤α≤180°; the outer circular surface of the oil scraper ring is a combination of a vertical surface and a conical surface, and the vertical surface is located below the conical surface; the height g of the vertical surface satisfies 0.1mm≤g≤0.7mm; the conical surface is inclined from the vertical surface towards the center of the oil scraper ring, and the inclination angle γ satisfies 1.5°≤γ≤2.5°; and the inner side of the oil scraper ring near the upper end face has a triangular notch.

The utility model discloses a kind of compressor refrigeration system quick oil return device and refrigeration system, including compressor, gas-liquid separation tank, still including oil temporary storage tank;The liquid outlet of gas-liquid separation tank is communicated with oil temporary storage tank by liquid outlet pipeline;Oil temporary storage tank is communicated with the suction port of compressor by oil return pipeline;Oil temporary storage tank and compressor outlet are communicated by power line;First control assembly is set on the power line, second control assembly is set on the liquid outlet pipeline.The utility model increases the process of temporary storage tank flow, power line by in compressor refrigeration system, realize the quick backflow of lubricating oil in pipeline, avoid screw compressor long-term low oil level operation, ensure that compressor normal operation.

The invention provides a device for electric microdroplet reaction and product collection, the device comprises a gas chamber, a counter electrode, a sample disc, a capillary tube and a cover plate, in a controllable gas environment provided by the gas chamber, the cover plate is arranged above the tip end of the capillary tube, the inner surface of the cover plate is designed into a dome-shaped structure, and the cover plate is used for condensing liquid droplets formed by electric spray; and the liquid drops are guided to flow back to the sample disc, so that interference on spraying operation is reduced. According to the circulating reflux design, unreacted components are recycled, are continuously sprayed through the capillary tubes and circularly participate in the reaction process, so that the reaction efficiency is remarkably improved. The device is simple in structure, high in stability and wide in application range, an efficient and reliable microdroplet synthesis technical platform is provided for chemical synthesis experiments and industrial production, the efficiency and quality of chemical synthesis are effectively improved, and the device has important significance for expanding the application scene of chemical synthesis.

The present application relates to the technical field of mica-containing spodumene ore dressing, in particular to a mica-containing spodumene ore separation system and separation process, characterized in that the system comprises a coarse-grained heavy medium separation mechanism, a coarse-grained shaking table separation mechanism, a desliming separation mechanism, a mica flotation mechanism and a fine-grained lithium separation mechanism; the coarse-grained heavy medium separation mechanism is connected with the coarse-grained shaking table separation mechanism and the desliming separation mechanism respectively; the coarse-grained shaking table separation mechanism and the desliming separation mechanism are connected with the mica flotation mechanism and the fine-grained lithium separation mechanism in sequence respectively; and the separation is carried out through the processes of coarse-grained heavy medium separation, coarse-grained shaking table separation, preparation before flotation, mica flotation and fine-grained lithium flotation, which has the advantages of strong adaptability, good separation index, low production cost, good concentrate quality, high economic benefit, fast capital reflux and the like.

The utility model relates to the technical field of wind power equipment, and discloses a hydraulic station system and a wind turbine generator. The hydraulic pump communicates with the oil tank and is suitable for conveying hydraulic oil to the executing mechanism; the oil supply electromagnetic valve is connected between the hydraulic pump and the actuating mechanism so as to control the on-off of an oil supply path; the pressure relief electromagnetic valve is connected between the executing mechanism and the oil tank so as to control on-off of a pressure relief oil way; the pressure detection unit is connected to an oil way of the hydraulic station system so as to detect the pressure in the oil way; the control unit is electrically connected with the oil supply electromagnetic valve, the pressure relief electromagnetic valve and the pressure detection unit, and the control unit controls opening and closing of the oil supply electromagnetic valve and the pressure relief electromagnetic valve according to the detection result of the pressure detection unit, so that when the system pressure detected by the pressure detection unit is smaller than a preset value, the control unit controls the oil supply electromagnetic valve to be closed; and the pressure relief electromagnetic valve is controlled to be opened. The automation degree is high, and leakage of a large amount of oil can be avoided.