16results about How to "Avoid life shortening" patented technology

The application provides a fiber-optic Fabry-Perot sensor based on light beam convergence and a manufacturing method thereof, and relates to the technical field of semiconductors. The sensor comprises a diaphragm layer, an intermediate layer and a bottom layer which are arranged in layers; the diaphragm layer is provided with a first groove, the intermediate layer is attached to the diaphragm layer in a manner that a first layer surface thereof faces the first groove, so as to form a Fabry-Perot cavity based on the first groove; the bottom layer is provided with a second groove, the intermediate layer is attached to the bottom layer in a manner that a second layer surface thereof faces the second groove, so as to form a nano-containing cavity based on the second groove; the second layer surface of the intermediate layer is formed with a micro-nano anti-reflection structure comprising array-distributed anti-reflection units located in the nano-containing cavity; and the bottom layer is formed with a micro-nano collimation structure comprising array-distributed collimation units located in the nano-containing cavity and in a symmetrical positional relationship with the micro-nano anti-reflection structure. The application at least reduces the manufacturing complexity.

The utility model discloses a rope winding vertical shaft safety door structure capable of automatically adjusting balance, and relates to the technical field of vertical shaft safety facilities. The safety door comprises a safety door body, a wellhead frame is arranged on the surface of the safety door body, and a balancing weight is arranged on one side of the safety door body. A balancing assembly is arranged on one side of the balancing weight and comprises a groove, and the groove is formed in one side of the balancing weight. By adopting the single steel wire rope, the problem that the service life of the steel wire rope is shortened due to different expansion and contraction degrees of the steel wire rope caused by adopting a two-steel-wire-rope suspension mode is avoided, and by additionally arranging the pulley on one side of the balancing weight, the balancing weight can be automatically adjusted to be balanced in the suspension process, is in a horizontal state and is stable in operation, friction is reduced, and the service life of the balancing weight is prolonged. Meanwhile, the surface of the steel wire rope is coated with lubricating liquid, resistance is reduced, friction between the steel wire rope and the slideway is reduced, and the service life of the steel wire rope is prolonged.

The invention provides a negative electrode control circuit and method for a commercial vehicle loading system, the negative electrode control circuit is provided with a battery positive electrode interface, a battery negative electrode interface and an output interface, the battery positive electrode interface is connected with the positive electrode of a storage battery, the battery negative electrode interface is connected with the negative electrode of the storage battery, and the output interface is connected with the negative electrode of electric equipment; the negative electrode control circuit comprises a field effect transistor which is provided with a grid electrode, a drain electrode and a source electrode, the grid electrode is connected with the battery positive electrode interface, the drain electrode is connected with the output interface, and the source electrode is connected with the battery negative electrode interface; and the controller detects the voltage of the storage battery in real time, controls the switch-on and switch-off of the field effect transistor according to the voltage of the storage battery, and further controls the connection state of the output interface and the battery cathode interface. The technical problems that a lead-acid storage battery manager can only achieve the voltage and electric quantity detection function, a load switch cannot be directly controlled, and overdischarge cannot be fundamentally solved are solved.

This invention relates to a leaf spring elastic support for a balance suspension, comprising an upper mounting base and a lower mounting base, which are longitudinally fitted together. A spring mounting position is provided circumferentially on the upper mounting base, with the spring portion mounted vertically within the mounting position. The upper mounting base is fixed to a pre-tightened frame via an intermediate connecting part to provide vertical vibration damping. The vertical mounting of the spring portion, combined with the special structures of the upper and lower mounting bases, such as conical mounting surfaces and cylindrical support structures, effectively resists horizontal forces and tensile forces, preventing performance degradation or failure of the support under complex stress environments. Simultaneously, this design enhances the structural strength of the support and extends its service life.

The utility model provides on-site mobile intelligent mixing equipment for fluid stabilized soil, which is characterized in that a top cover is detachably connected above a mixing barrel, a feed port and a water inlet pipe are arranged on the top cover, and a discharge port is arranged at the bottom of the mixing barrel; a main shaft of the stirrer upwards extends out of the top cover and then is connected with a driving device; the stirrer comprises a connecting rod and scraping pieces, the two scraping pieces are symmetrically distributed about the main shaft and extend along the generatrix of the inner wall of the stirring barrel, the scraping pieces and the scraping pieces are attached to the inner wall of the stirring barrel, materials on the barrel wall can be scraped through rotation, and therefore the stability and consistency of the stirring quality are ensured; furthermore, due to the arrangement of the elastic piece, the scraping piece can deform to pass through a resistance point after encountering large resistance in the using process, and the situation that the service life of equipment is shortened due to hard stress of the scraping piece is avoided.

The utility model relates to electric bicycle technical field, concretely relates to a three cavity frame pipe of battery mountable. Including frame pipe, the frame pipe is hollow structure, and is equipped with two independent cavities in hollow structure, the both ends of frame pipe are open and are seted up a strip slot in bottom, be provided with battery box in the frame pipe, be provided with cover line board between frame pipe and battery box, the right side of battery box in frame pipe is provided with lock seat, be provided with the lock in lock seat, lock seat with lock integral moulding, be provided with lock bolt protection piece in the junction of battery box and lock, rotate lock control battery box locking or loosen. With three cavity frame pipe structure, not only has promoted the frame strength and processing stability, has realized the inlay type arrangement of wiring harness, simultaneously has designed the lockset and the fixed seat integration, through the lock cooperation of taking and pressing, realizes the battery box "take / take" general function.

The utility model discloses a bearing bracket of a chemical process pump, which belongs to the technical field of chemical process pumps, and adopts the technical scheme that the bearing bracket comprises a bearing seat, a shaft bracket assembly is arranged in the bearing seat, a bearing is arranged in the shaft bracket assembly, and a shaft rod is arranged in the bearing; the shaft bracket assembly comprises a support fixedly connected to the bottom side of the interior of the bearing seat, and a lower bearing frame is fixedly connected to the top of the support. By arranging the shaft bracket assembly, a bearing is installed between the upper bearing frame and the lower bearing frame, the upper bearing frame and the lower bearing frame are connected in a clamping mode, and the upper bearing frame is connected with the bearing seat through a lead screw; lifting of the upper bearing frame can be achieved by rotating the lead screw through the inner hexagonal block, when the bearing breaks down or is damaged, bolts do not need to be screwed off one by one like a traditional mode, the bearing can be rapidly disassembled only by rotating the lead screw to enable the upper bearing frame to rise, the maintenance process is obviously simplified, time and labor are saved, and the influence on the production schedule is greatly reduced.

Embodiments of the present application provide a bump packaging structure and a preparation method thereof, and relate to the technical field of semiconductor packaging. The bump packaging structure comprises a chip, a solder pad, a protective layer, a substrate conductive layer, a first combined conductive layer, a conductive column and a solder cap. The substrate conductive layer comprises a multilayer graphene structure. Compared with the prior art, the bump packaging structure and the preparation method thereof provided by the present application can avoid the undercut opening formed by excessive corrosion, and the structure is more stable, the problem of electrode stress cracking is avoided, and the heat dissipation and conductivity are better, effectively alleviating the failure hidden danger caused by electromigration and thermal migration.

The utility model provides a kind of mine ash removal device, it relates to mine dust removal technical field, including: casing, air inlet, air outlet, air cylinder, cyclone dust collector, support frame, hopper and electromagnetic pulse valve;The inside of casing is provided with filter dust board and filter dust bag;Electromagnetic pulse valve is set to the left side outside casing, and air pocket is fixedly connected on the lower side, and left side is fixedly connected with spout pipe.Filter dust board and filter dust bag, can carry out efficient filtration to working area dust, ensure optimum filtration effect, fixed plate right end is provided with rotary groove, rotary groove is provided with snap ring inside, snap ring can rotate, can realize filter dust bag rotation, avoid partial stress to cause filter dust bag cleaning uneven, spout pipe is provided with baffle, baffle can be moved according to the position of filter dust board and filter dust bag, design is more reasonable, can be targeted automatic flushing, reduce the risk of blockage, prolong equipment service life.

The utility model discloses an unequal tooth pitch end mill for aluminum alloy product processing relates to milling technical field. This unequal tooth pitch end mill for aluminum alloy product processing, including handle and the unequal tooth pitch end mill head of handle outer wall setting, handle inboard is provided with heat abstractor, and handle outer wall is provided with milling mechanism. Heat abstractor includes cooling part and heat conduction part. Cooling part includes cooling pipe, and the technical effect is that the heat conduction sheet in heat abstractor is close to unequal tooth pitch bottom milling edge, can capture the large amount of heat produced in the milling process, and quickly passes the heat to the cooling tank, and the cooling pipe can pass into the cooling liquid, through the circulation flow of cooling liquid, in time takes away the heat in the cooling tank, realizes the effective cooling of handle and end mill head, simultaneously, the heat conduction fin of heat conduction sheet is located in the heat conduction fin of cooling tank inboard outer wall setting, increases the heat conduction area, has improved the heat transfer efficiency, makes the heat can be fasterly radiated.

The utility model relates to the technical field of showcase lighting, specifically relates to a light guide plate mounting assembly suitable for showcase, including aluminium frame, limiting component, limiting component installs in one side of aluminium frame, and limiting component is used for fixed position of light guide plate, heat dissipation component, heat dissipation component installs in one side of aluminium frame, and heat dissipation component is used for heat dissipation. Compared with prior art, the application realizes automatic position limiting and firm fixing of light guide plate through the combination of limiting component and elastic compression structure, realizes the high -efficient heat dissipation of LED light source through the setting of heat dissipation component and air convection channel, prolongs light source life and guarantees the temperature stability inside showcase, and simultaneously, the installation and maintenance are simple and convenient, improve the uniformity and reliability of the overall lighting effect of showcase.

This utility model discloses an integrated air-liquid heat exchange device for supply and storage, relating to a liquid cooling system. It includes a first manifold, a second manifold, and fins between them. The first manifold has inlet and outlet ports on both sides, and is divided into inlet and outlet chambers by a baffle plate. The outlet chamber contains a circulating pump. The fins contain several parallel flat metal channels, adjacent channels are connected by "W"-shaped metal plates, and both ends of the channels are sealed to the manifold. The fins also have sintered metal powder protrusions on both sides of the interior. This device integrates the circulating pump, reducing piping and connection points, lowering the risk of leakage and cost, providing heat dissipation for the circulating pump, and the sintered protrusions inside the channels improve heat exchange efficiency. Furthermore, the integrated design reduces system piping complexity, thereby reducing pressure loss in the cooling system.

This utility model discloses an energy-saving sugarcane pressing device based on compound enzyme pretreatment, including a pressing cylinder, a juice outlet pipe, and a cap. The cap is threaded to the pressing cylinder. The pressing cylinder has slots on all four sides at its upper end, and protrusions are in contact with the slots. One of the protrusions is a split structure and is connected by a hinge. The bottom end of the other protrusion is fixedly connected to an insertion rod, which is inserted into the pressing cylinder. A support plate is fixedly connected between the four protrusions, and a hydraulic push rod is fixedly connected to the bottom end of the support plate. This utility model uses a drive motor installed on the bottom side of the receiving cylinder to drive the receiving plate and the receiving cylinder to rotate. When the juice outlet pipe is blocked, the push plate and combing rod can be pushed by the electric push rod to insert into the juice outlet hole, thereby combing out the clumps at the juice outlet hole. Furthermore, the water pump draws water from the external environment and cleans the inside of the receiving cylinder through a hose, a fixed plate, a connecting pipe, and a through hole, which can improve the cleaning effect and avoid the reduction in lifespan caused by frequent start-stop of the water pump.

This disclosure relates to the field of fuel cell system control technology, and proposes a method and system for coordinated control of a vehicle and a fuel cell system. When the vehicle is in a high-voltage state, the fuel cell system queries for a start-up command. If a start-up command is found, the fuel cell system starts up; otherwise, it sends a forced start-up request to the vehicle controller. The vehicle controller determines whether the fuel cell system meets the forced start-up conditions; if so, it sends a start-up command to the fuel cell system. After starting up according to the start-up command, the fuel cell system sends an intervention power request to the vehicle controller. The vehicle controller responds to the intervention power request. Based on the fuel cell system's ability to actively cooperate with the vehicle to intervene according to its own health status, coordinated control of the vehicle system and the fuel cell system is achieved, reducing the risk of reduced lifespan due to prolonged inactivity after fuel cell installation.

This utility model relates to the field of wastewater treatment technology, aiming to solve the problems of inaccurate adjustment, low operating efficiency, and high operating costs in existing technologies. It provides an aeration system that automatically adjusts the purge airflow of an MBR membrane system, including a programmable control system. The programmable control system is electrically connected to a sludge concentration meter, a pressure transmitter, a liquid level sensor, an air flow meter, a temperature sensor, a gas regulating valve, a gas vent valve, and a purge blower. The purge blower is connected to a main purge pipe, which is connected to several purge branch pipes. These branch pipes are connected to several membrane frames, which are adapted to a membrane tank. The sludge concentration meter, liquid level sensor, and temperature sensor are installed inside the membrane tank. The air flow meter, gas regulating valve, and gas vent valve are all installed on the main purge pipe or purge branch pipes, and the pressure transmitter is installed on the effluent pipe. The advantages of this utility model are precise adjustment, high operating efficiency, high operating stability, low operating costs, and reduced energy consumption.

The application provides a reluctance motor and a reluctance motor for driving a compressor, comprising a shell; a stator and a rotor are arranged in the shell, and a rotating shaft is fixed in the middle of the rotor; a cooling cavity is arranged in the shell wall, and the cooling cavity is used for cooling liquid flow; heat dissipation mechanisms are fixed on both sides of the rotor, a liquid delivery part is arranged on one side of the heat dissipation mechanism, the liquid delivery part extends into the cooling cavity; a plurality of liquid brushing rings are arranged on the outer wall of the shell, the liquid brushing rings are connected with liquid injection mechanisms, and the liquid brushing rings are connected with a pushing mechanism through connecting rods. By arranging the heat dissipation mechanisms on both sides of the rotor and connecting the heat dissipation mechanisms with the liquid delivery part, when the motor operates, the liquid delivery part can automatically extract the cooling liquid in the cooling cavity and input the cooling liquid into the heat dissipation mechanism, the cooling liquid flows in the heat conduction pipes of the heat dissipation mechanism, can quickly absorb the heat transferred to the heat conduction disc by the rotor, and then carries the heat back into the cooling cavity, forming a circulating loop for heat dissipation of the rotor, effectively solving the problems that the heat of the rotor of the traditional reluctance motor is difficult to dissipate and is easy to accumulate.