11results about How to "Prevent decay" patented technology

The invention discloses a high-cycle-performance aqueous battery, which comprises an aqueous electrolyte, a negative electrode, a first positive electrode and a second positive electrode, wherein the first positive electrode and the second positive electrode are positioned on two sides of the negative electrode, and a first diaphragm and a second diaphragm are respectively arranged between the first positive electrode and the negative electrode and between the second positive electrode and the negative electrode; the battery is provided with an electromagnetic valve, the electromagnetic valve is electrically connected with the first positive electrode and the second positive electrode to control switching of the positive electrodes in the charging and discharging loop, and every time discharging and charging circulation are completed, the electromagnetic valve switches the electrode connection relation, and the first positive electrode and the second positive electrode are alternately connected into the charging and discharging loop. Switching of the two positive electrodes in the aqueous battery is accurately controlled through the electromagnetic valve, a positive-negative battery structure is formed in real time, the double positive electrodes alternately perform lithium removal-lithium intercalation reaction, excessive Li intercalation or insufficient positive electrode reduction caused by long-term charging and discharging of a single positive electrode is avoided, the structural stability of the positive electrode material is improved, and the service life of the battery is prolonged. The cycle life and the electrochemical performance stability of the aqueous battery are obviously improved.

The utility model relates to a luminous floor tile which comprises a tile body, the tile body is provided with an installation groove which is arranged in a penetrating mode in the horizontal direction, and a lamp strip is installed in the installation groove in a penetrating mode. The base is attached to the bottom of the brick body in the vertical direction, a wire passing groove is formed in one side of the base, the wire passing groove is connected with the tail end of the mounting groove, and a lead connected with the lamp strip is mounted in the wire passing groove; the adhesive tape layer wraps and is attached to the periphery of the tile body and the periphery of the base in the vertical direction, the adhesive tape layer is made of an elastic material, and the adhesive tape layer is used for filling a gap between the light-emitting floor tile and the ground after the light-emitting floor tile is installed in the ground. By means of the brick body and the base which are arranged in an attached mode, higher bearing strength is achieved, the adhesive tape layer wraps the periphery of the brick body and the base, the integrating degree of the brick body and the ground is high, and material decay and structure looseness caused by rainwater permeation are avoided.

The application discloses a kind of full-time hot standby fault zero attenuation air supply system and method, it is related to air supply system technical field, the air supply system includes: main fan blade, vice fan blade, deceleration synchronization unit, switching control module, risk prediction module, air supply pressurization module and emergency backup unit.The deceleration synchronization unit is connected to the deceleration of main fan blade and vice fan blade, when main fan blade is fault-free operation, vice fan blade can follow it and rotate at low speed, when main fan blade appears fault or there is predicted fault risk, vice fan blade does not need to start quickly to promote speed from static, avoid the delay problem that vice fan blade starts to stable air supply when traditional double fan group switches, ensure that the airflow barrier of scene is not destroyed, guarantee target area air supply environment stability, simultaneously, vice fan blade is standby by main fan blade synchronous rotation, so that vice fan blade standby process does not need to be driven separately, realize the energy-saving standby effect of system, reduce the problem of traditional double fan simultaneous start energy consumption.

The utility model relates to dry granulation technical field discloses a kind of sealing mechanism for dry granulator, including granulator, the outer wall side of granulator is equipped with conveying structure, it spirally conveys material to the inside of granulator, the inside one end of conveying structure is equipped with sealing mechanism, it is sealed to conveying structure, the outside of sealing mechanism is also equipped with cooling structure, it is cooled to sealing mechanism;The conveying structure includes conveying pipe, one end of the conveying pipe is connected with granulator, another end of the conveying pipe is fixedly connected with conveying motor.In the utility model, high-strength magnetic field formed in radial gap by magnetic circuit assembly captures magnetic fluid, forming liquid seal ring.The sealing ring can adapt to the rotating conveying shaft, maintain complete sealing interface, eliminate the reverse leakage of powder material, and ensure the pressure stability of the granulation process.Because of the liquid contact between magnetic fluid and conveying shaft, mechanical wear is reduced.

The utility model discloses a drag type asphalt mixture surface layer temperature information monitoring system belongs to asphalt pavement construction monitoring equipment technical field, including support frame, data acquisition module, lubrication module, wireless transmission module and power module, and the bottom of support frame is equipped with the drag heat insulation bottom plate, and data acquisition module includes data collector and the temperature sensor of being located at the bottom of frame, and lubrication module includes lubricating liquid storage tank and the liquid guide pipe to the bottom surface of bottom plate for preventing asphalt adhesion. The utility model discloses through drag type structure and synchronous movement with paver, realizes continuous temperature monitoring, and integrates wireless transmission and real -time display function, and through high heat -conducting metal bottom plate ensures the temperature measurement accuracy, and combines lubrication and prevents sticking and heat -insulation design, and guarantees the stable operation of system under the high temperature bad environment.

The application relates to the technical field of semiconductor devices, in particular to a high-efficiency SiP power module which comprises a ceramic substrate, a metal frame, a metal cover plate and a plurality of power units; each power unit comprises a MOSFET, a transformer, a high-voltage capacitor and a high-voltage diode, an NTC thermistor, a PTC thermistor, an electrically-controlled variable resistor, a voltage-dividing resistor, a filter capacitor and a micro MCU; the NTC thermistor is connected in series on a source path of the MOSFET and is connected through a voltage-dividing circuit and the micro MCU; the PTC thermistor is connected in parallel with the source and the drain of the MOSFET; the micro MCU outputs a resistance value adjustment amount of the electrically-controlled variable resistor by analyzing voltage and resistance change conditions in the circuit, and adjusts the resistance value of the electrically-controlled variable resistor by using the resistance value adjustment amount. The application improves the heat management capability of the SiP power module and avoids local temperature imbalance.

The utility model relates to friction welding equipment technical field provides a kind of medium-large supporting wheel friction welding device, including friction welding machine, still including two half circle clamping pieces of symmetrical arrangement, two half circle clamping pieces are assembled in chuck dog inner side of friction welding machine, single half circle clamping piece at least includes: inner half ring, its surface is equidistantly opened with multiple radial through-slots along circumference direction;Outer half ring, coaxially sleeve is set in inner half ring outer portion;Magnetic movable element, including magnetic sheet, guide pillar connected to the tail of magnetic sheet, and the compression spring connected between guide pillar and the inner wall of outer half ring, guide pillar can move along inner half ring radial, make magnetic sheet under the action of compression spring and extend into through-slot or under the action of centrifugal force and remove from through-slot.The utility model overcomes the deficiency of prior art, both ensure the positioning accuracy of wheel axle, ensure that half circle clamping piece can be adsorbed in wheel axle end portion when supporting wheel is disassembled, avoid the danger caused by magnetic attenuation and cause its loosening.

The utility model provides an automatic power-off distribution box for charging an electric automobile, which comprises a box body, a circuit breaker, a contactor, an intermediate relay and a current sensing switch, and is characterized in that the circuit breaker, the contactor, the intermediate relay and the current sensing switch are arranged on the inner side surface of the box body; the circuit breaker is electrically connected with the contactor, the contactor is electrically connected with the intermediate relay, and the intermediate relay is electrically connected with the current sensing switch. According to the automatic power-off distribution box for charging the electric automobile, through electrical mutual cooperation of the circuit breaker, the contactor, the intermediate relay, the current induction switch and the like, when the automatic power-off distribution box is used, a charging power supply is automatically cut off after the charging current is detected to be smaller than a set threshold value and lasts for one minute, and the automatic power-off distribution box is safe and reliable. And the battery is effectively prevented from being continuously charged after being fully charged, so that performance degradation and service life shortening caused by overcharge of the battery are prevented.

This utility model discloses a radio frequency coaxial cable assembly, belonging to the field of coaxial cables. The lower end of the cable head is connected to a tail connector via a threaded connection, and a protective cable is connected to the tail connector. The inner core of the protective cable is connected to the connector via a connector core. The end face of the tail connector has an embedded slot, into which a retractable connecting sleeve is embedded. The tail connector, the retractable connecting mechanism, and the protective cable together constitute a stable and reliable signal transmission system. The tail connector provides a stable connection base, the retractable connecting mechanism adapts to protective cables of different sizes, ensuring connection flexibility and versatility. The snap-fit ​​ring on the protective cable fits tightly with the retractable connecting mechanism, achieving stable signal transmission. This design not only improves the component's service life and performance stability but also reduces maintenance costs, providing users with a more convenient and efficient user experience.

The invention provides a baby incubator and a baby culture transfer imaging system, and relates to the technical field of medical treatment. The infant incubator comprises a base, an infant cabin, an air duct structure, a flow driving device, a heating device and a heat exchange device, two ends of the air duct structure are respectively communicated with an air inlet and an air return port of the baby cabin to form an air flow circulation path; the heating device is at least partially located in an inner cavity of the air duct structure so as to heat fluid in the air duct structure. The flow driving device comprises an airflow driving part and a driving unit, the airflow driving part is located in an inner cavity of the air duct structure, the driving unit is in driving connection with the airflow driving part, and the driving unit comprises a non-magnetic motor; the heat exchange device is thermally coupled with the driving unit and airflow in the air duct structure, and the thermal coupling position of the airflow in the air duct structure and the heat exchange device is located on the upstream of the heating device.

The application relates to the technical field of high polymer fiber rope manufacturing, and discloses a preparation process of a double-twisted anti-rotation ultra-high molecular weight polyethylene rope, which comprises the following steps: high-strength high-modulus UHMWPE fibers are selected as main body reinforcing fibers and are subjected to surface activation treatment; the treated UHMWPE fibers are divided into inner layer fiber bundles and outer layer fiber bundles; the blended inner layer fiber bundles are bundled, introduced into a tubular stranding machine through a tension controller, twisted in an "S" direction, and inner layer strands are formed; the twisted inner layer strands are continuously passed through a first heat treatment zone and cooled to form a pre-consolidated inner layer strand core. Through the combination of the double-layer blending functionalization, the inner-outer reverse twisting structure and the heat-induced plasticity integrated technology, the high-performance UHMWPE rope with high interface bonding strength, excellent anti-rotation performance, stable structure and intelligent monitoring potential is prepared, a series of problems such as weak interface bonding, easy rotation, single function and difficult monitoring are effectively solved, and the comprehensive performance and reliability of the UHMWPE rope are remarkably improved.