7results about How to "Ease the temperature" patented technology

The application discloses a composite steel pipe single pile filled with recycled building materials and a construction method thereof, and belongs to the technical field of steel pipe piles. The composite steel pipe single pile comprises a steel pipe pile body, a cavity is arranged in the steel pipe pile body, the cavity is used for filling recycled building materials, a plurality of interface connecting mechanisms are arranged in the cavity, and a sealing mechanism is arranged on the top surface of the steel pipe pile body. By constructing a steel-filling core composite cross-section structure, the cross-section inertia moment and the overall bending stiffness are improved, the pile top displacement and bending deformation can be effectively reduced under the action of horizontal load, the single pile horizontal bearing capacity is improved by optimizing the cross-section stress system under the condition of controlling the steel consumption, and the structural material utilization efficiency is improved. The collaborative working capacity between the steel pipe and the filling body is enhanced through the interface connecting structure, the overall stress performance of the composite structure is improved, the air retention space in the steel pipe is reduced by filling the recycled building materials, the temperature and humidity fluctuations are alleviated, and the internal service environment is improved.

The invention discloses an external rotor motor for an eVTOL aircraft. A stator fixing shaft is arranged in the motor, a stator is arranged on the fixing shaft, the stator adopts a tooth yoke separation structure, and a 3D printing integrated welding-spot-free variable cross-section flat wire winding is arranged in a slot, so that the slot fullness rate of the motor is increased, and the efficiency of the motor is improved; a rotor is arranged outside a stator, a magnetism gathering type Halbach permanent magnet pole is arranged on the rotor, a shell, a front end cover and a rear end cover are arranged outside the rotor, one end of a fixing shaft is connected with a fairing through a fairing bearing, the fairing is fixedly connected with the front end cover, blades are arranged outside the fairing, an airflow channel is formed in the fairing, and a plurality of spiral channels are formed in the stator. The airflow channel is communicated with the spiral channel; when the motor is started, the blades and the shell rotate at the same time, and wind is driven to enter the motor, pass through the spiral channel and flow out of the channel in the fixed shaft. The stator spiral channel greatly increases the cooling area of the stator core, reduces the stator temperature rise of the external rotor motor, and effectively alleviates the problems of winding temperature and stator hot accumulation.

The present invention discloses a fire prevention system for a belt conveyor, comprising: a collection terminal, an application platform, wherein the collection terminal is connected to the application platform through a data transmission module; the collection terminal, wherein the collection terminal is composed of a detector, a processing mechanism, and a detection unit, wherein the detector comprises a temperature detection module and a data conversion module, wherein the detector is electrically connected to the detection unit; and the application platform, wherein the application platform comprises a processing module, an image display module, and an alarm module. The present invention is provided with a detection unit, thereby being able to quickly perform a full range of detection work on the temperature of the belt conveyor main body, thereby ensuring the normal use state of the belt conveyor main body; and by providing a processing mechanism, the belt conveyor main body can be effectively assisted in cooling down, thereby being fully protected; and when the temperature of the belt conveyor reaches the limit value, the belt conveyor can be driven to stop in time, thereby improving the overall use safety.

The invention relates to the field of material transportation, and specifically to an air-floating bag-turning conveyor, comprising a jet conveying platform, wherein constraint frames are symmetrically fixedly installed on the left and right sides of the upper end of the jet conveying platform, the constraint frames are in a door shape, and a bag-turning loading device is arranged in the middle of the constraint frames on the left and right sides and the jet conveying platform, and a jet slot is opened at the upper end of the jet conveying platform, and the jet slot is evenly distributed along the front-back direction, and a floating jet device is arranged inside the jet conveying platform corresponding to the jet slot, and the floating jet device comprises a main air intake pipe, a branch air intake pipe and a jet pipe, wherein one main air intake pipe is fixedly installed in the left and right directions of the jet conveying platform, and a plurality of branch air intake pipes are arranged between the two main air intake pipes, and the main air intake pipe is communicated with the branch air intake pipe, and the branch air intake pipe corresponds to the jet slot one by one, and the branch air intake pipe is provided with a communicating jet pipe, so that the invention uses high-pressure gas to have an upward air buoyancy force on the bagged material, so that the transportation of the material becomes easy and the material can be cooled at the same time.

The utility model discloses a lithium battery pack heat dissipation device for a telemetering unmanned aerial vehicle. The lithium battery pack heat dissipation device comprises a solid-liquid phase change material, a waveform aluminum plate, raindrop type turbulent flow micro-bulges, a unit lithium battery pack shell, an L-shaped heat conduction aluminum sheet, a thermal interface material, a battery pack shell, a heat dissipation fan and a lithium battery, the corrugated aluminum plates are arranged on the upper surfaces and the lower surfaces of the lithium batteries, the solid-liquid phase change materials are arranged in gaps between the lithium batteries and the corrugated aluminum plates, the raindrop type turbulent flow micro-bulges are arranged on the surfaces of the corrugated aluminum plates, and the three lithium batteries are connected in parallel to form a unit lithium battery pack; unit lithium battery pack shells are arranged on the peripheries of the unit lithium battery packs, L-shaped heat conduction aluminum sheets are arranged on the unit lithium battery pack shells, the three unit lithium battery packs form a lithium battery pack, battery pack shells are arranged on the periphery of the lithium battery pack, and cooling fans are evenly arranged on the air inlet sides of the battery pack shells. According to the utility model, sudden temperature rise and non-uniformity caused by heat generated by high heat flow when the lithium battery of the telemetering unmanned aerial vehicle works at a high load can be effectively relieved, the heat dissipation efficiency is high, and the heat stability is good.

The present invention relates to the field of medicine and health care products, and aims to provide a new medical use of pyruvate, namely, the use of pyruvate in the preparation of medicines and health care products for treating central pain after stroke. Experimental verification has shown that pyruvate can significantly reduce the mortality rate of mice after thalamic hemorrhage, and alleviate the hyperalgesia of mechanical and thermal stimulation caused by thalamic hemorrhage.

The invention belongs to the technical field of alloy material manufacturing, and particularly relates to a wear-resistant alloy material and a preparation method thereof. The alloy material comprises a matrix alloy and a reinforced phase material, wherein the matrix alloy comprises the following elements in percentage by mass: 1.5 to 3 weight percent of lithium, 0.5 to 2.2 weight percent of magnesium, 1.5 to 2.8 weight percent of copper, 0.25 to 0.45 weight percent of manganese, 0.1 to 0.5 weight percent of cadmium, 0.05 to 0.08 weight percent of scandium, less than or equal to 0.2 weight percent of inevitable impurity elements and the balance of aluminum; the reinforced phase material is prepared from modified molybdenum disulfide particles, graphite, dibasic acid ester and an antioxidant. Through the synergistic effect of the modified MoS2 particles, the DLC coating, the microporous structure and the high-temperature stable lubricating oil, the wear resistance and self-lubricating performance of the aluminum-lithium alloy are remarkably improved, the lubricating effect is prolonged, and long-term effective wear resistance is achieved.