14results about How to "Reduce the windward area" patented technology

The application relates to a force couple balance and longitudinal array push-pull vertical take-off and landing high-speed aircraft, belonging to the technical field of aircrafts, which comprises a fuselage, a rotor, a fixed wing, a steering controller and a propeller. The rotor is installed at the top of the middle part of the fuselage through a rotor shaft, and a clutch is arranged between the rotor and a power system and / or a transmission system matched with the fuselage, so as to be controlled to be disconnected or to transmit power to the rotor. The steering controller comprises a fixed base and a rotating base, and each of the nose and the tail has a set of the rotating base. The propeller is provided with two propellers which are respectively installed on the rotating bases of the nose and the tail, and are controlled to rotate with the rotating bases relative to the fixed base. The force couple formed by the front and rear thrust vectors is used to balance the reverse torque brought by the rotor. When the propeller is coaxial with the middle axis of the fuselage, the wind area of the single propeller obtains double thrust. The application can improve the energy utilization rate, improve the carrying capacity, improve the flight safety performance and obtain a longer hovering time.

The utility model provides a counterbalance, a motor rotor assembly and a compressor, the counterbalance comprises a counterbalance main body, the counterbalance main body extends along the circumferential direction of a motor rotor, the counterbalance main body is provided with a windward end and a leeward end, and at least the windward end is provided with a suspended flow guide body extending along the circumferential direction of the motor rotor. A suspended overflowing space is formed between the side, close to the first end face, of the suspended flow guiding body and the first end face, and the suspended flow guiding body is provided with a flow guiding radial outer side face and a flow guiding radial inner side face. The flow guide radial outer side face gradually gets close to the radial inner side of the motor rotor and / or the flow guide radial inner side face gradually gets close to the radial outer side of the motor rotor so that the cross section of the suspended flow guide body can become smaller and smaller in the circumferential direction away from the balance block body. According to the utility model, the internal flow field of the compressor is effectively prevented from being disturbed due to the pumping effect, the operation noise of the compressor is reduced, and meanwhile, the oil spitting rate and oil spitting quantity of exhaust refrigerant of the compressor are reduced.

The invention provides photovoltaic energy storage equipment which comprises a base, a telescopic frame arranged in the base and a main board connected with the telescopic frame. The auxiliary plate is arranged on the surface of the main plate and is unfolded along with rotation of the main plate, a fourth connecting rod is arranged on the surface of the auxiliary plate and the surface of the main plate, a connecting rod is connected to the surface of the fourth connecting rod, one end of the fourth connecting rod is connected with the telescopic frame, and when the base drives the telescopic frame to move, the angle of the main plate is changed, and the auxiliary plate is driven to be unfolded relative to the main plate. The dynamic adjustment of the photovoltaic acquisition area is realized, and when the illumination is sufficient, the auxiliary plate can be automatically unfolded, so that the total light receiving area is greatly increased; in severe weather or transportation, the auxiliary plate is folded on the surface of the main plate, the windward area and space occupation are effectively reduced, the balance between the power generation efficiency and the structural safety is realized, a back-mounted connecting rod scheme is adopted, all stress connecting rods and motion fulcrums are hidden on the backlight surface of the photovoltaic panel, the absolute cleanness of the light receiving surface is ensured, and the service life of the photovoltaic panel is prolonged. And the power generation efficiency of the photovoltaic panel is improved.

The invention discloses a modular photovoltaic shed power station rapid assembling and supporting device, and belongs to the field of photovoltaic power stations, the modular photovoltaic shed power station rapid assembling and supporting device comprises a bottom plate, an electric rotating disc is arranged at the upper end of the bottom plate, a mounting seat is fixedly connected to the upper end of the electric rotating disc, a mounting rod is rotatably connected to the upper end of the mounting seat, and the outer wall of the mounting rod is fixedly connected to a mounting frame; a photovoltaic panel is arranged in the mounting frame; the upper end of the electric rotating disc is fixedly connected with a fixing plate, and the outer wall of the fixing plate is fixedly connected with a motor. According to the invention, the motor drives the gear and gear block linkage mechanism, thereby achieving the automatic adjustment of the inclination angle of the photovoltaic panel, and effectively improving the sun tracking precision and power generation efficiency. Meanwhile, a pure mechanical wind power induction and disconnection protection mechanism is utilized, a driving part is automatically separated in strong wind, the photovoltaic panel is prevented from being located at a high-risk windward angle, power generation optimization and passive safety protection functions are achieved, extra energy consumption is not needed, and the structure is simple and reliable.

The invention discloses a photovoltaic support self-adaptive adjusting and reinforcing device, which relates to the technical field of photovoltaic power generation, and comprises a supporting seat, a detection mechanism arranged at the top of the supporting seat and used for detecting the external wind speed and the inclination degree of the supporting seat, and an inclination angle adjusting mechanism arranged at the top of the supporting seat and used for adjusting the inclination angle of the supporting seat. And the inclination angle adjusting mechanism is arranged in the supporting seat. According to the photovoltaic support self-adaptive adjusting and reinforcing device, the wind level is monitored in real time through the wind speed sensor, when the wind speed exceeds the critical value, the control center rapidly triggers the dip angle adjusting process, the switching mechanism is accurately connected with the power transmission link, the worm and worm gear speed reduction pair drives the lead screw to drive the traction rod to act, and the photovoltaic panel is adjusted to be in the horizontal state from the power generation dip angle; the windward area and the wind load are greatly reduced, and the self-locking characteristic of the worm and the worm gear and the mechanical locking of the electromagnetic brake are matched, so that the angle springback under strong wind and the gliding of the sliding piece can be effectively prevented.

The application relates to the technical field of photovoltaic support, in particular to a wind-resistant and shock-resistant self-balancing photovoltaic support and an assembling method thereof, which comprises a support frame, the support frame is provided with a pitching support, the pitching support is connected with a triggering frame, a connecting frame is rotatably installed on the pitching support, a plurality of groups of photovoltaic panel bodies are rotatably installed on the connecting frame, and abutting wheels are rotatably installed on the side of the connecting frame; an elastic supporting assembly is connected with the pitching support, the elastic supporting assembly is formed with a holding position and two release positions, when wind exceeding a predetermined level acts on the photovoltaic panel body, the abutting wheels can be switched from the holding position to the release position; an energy storage structure is connected with the photovoltaic panel body, the energy storage structure can drive the photovoltaic panel body to perform a deflection action; and a locking shaft is connected with the energy storage structure, the locking shaft cooperates with the triggering frame, so that the wind resistance of the photovoltaic support is improved.

The invention discloses a cold-resistant and stretch-resistant high-voltage cable, and relates to the technical field of high-voltage cables, the cold-resistant and stretch-resistant high-voltage cable comprises a metal conductor, the outer side of the metal conductor is coated with an internal insulating layer, and the outer sides of a plurality of internal insulating layers are jointly coated with a limiting silicon rubber sleeve; the outer side of the limiting silica gel sleeve is sequentially coated with a rubber protection layer, a metal shielding layer and an external rubber protection layer, and the outer side of the external rubber protection layer is sleeved with a counterweight clamping bottom ring. The cable is prevented from being broken due to too low temperature in cold weather, the overall service life of the cable is effectively prolonged, meanwhile, auxiliary heating pressurization is actively performed on the outer side of the cable, snow and ice shells on the outer side of the cable are melted and subjected to spalling cleaning through auxiliary heating and outer diameter expansion of the cable, and the service life of the cable is prolonged. The cleaning mode of the cable in rainy and snowy weather is optimized, and the cleaning and maintenance cost of the cable in cold weather is reduced.

The utility model relates to photovoltaic support technical field provides a angle adjustable desert area photovoltaic support subassembly, including fixed plate, the top inlay of fixed plate has solar photovoltaic board. The utility model discloses be provided with cleaning structure, under the action of movable rod, the stability of movable plate movement has been strengthened, the movable plate after moving drives the scraper to descend, makes the bottom of scraper closely fits the surface of solar photovoltaic board, fixed plate, first fixed frame and second fixed frame, when the mobile seat moves on the outside of threaded rod, the mobile seat will drive the top plate to move through the connecting seat, under the action of protective curtain, prevent sand and dust from entering the inside of first fixed frame and second fixed frame, the top plate after moving will drive the scraper to uniform speed scrape and sweep the surface of solar photovoltaic board, fixed plate, first fixed frame and second fixed frame, under the action of protective layer, can prevent desert fine sand electrostatic adsorption, cohere scraper to solve the power generation efficiency attenuation problem under the wind sand environment.

The application discloses a motorcycle, comprising a frame, a vehicle body cover arranged at least partially on the frame, a walking assembly connected at least partially to the frame, a driving assembly for driving the walking assembly, the driving assembly comprising a housing and a lubricating assembly, wherein the housing is formed with an accommodating space, the lubricating assembly comprises an oil pump and a scavenging pump assembly, the oil pump and the scavenging pump assembly are fixedly connected, and the oil pump and the scavenging pump assembly are arranged in the accommodating space. By integrally arranging the oil pump and the scavenging pump assembly, the space occupied by the lubricating system during arrangement is reduced, the driving assembly of the motorcycle is arranged more compactly and light in weight, the windward area of the driving assembly is reduced, and the resistance of the motorcycle during driving is reduced.

This invention discloses an underactuated robot leg and a flying robot with adaptive landing and grasping capabilities. The underactuated robot leg includes a frame assembly, symmetrically arranged first and second leg units, a first actuator, a second actuator, and a corresponding transmission mechanism. The frame assembly includes a frame plate and two support components. Each leg unit has a first leg structure and a second leg structure arranged side by side. Connected by the support components, the mounting plane of the first leg structure is lower than that of the second leg structure, forming a staggered layout. This invention reliably switches the underactuated robot leg between a passive adaptive stable support configuration, an active grasping configuration, and a folding and storage configuration simply by controlling the extension and retraction of the first and second actuators, solving the contradictory problem of balancing passive adaptive landing on undulating terrain and active grasping of objects within the same mechanism.

The unmanned sailboat wing sail with the telescopic and windward area changing functions comprises a fixed sailboard, a movable sailboard, a linear driving module, an opening and closing blade and a blade adjusting mechanism, the fixed sailboard and the movable sailboard are hollow wing-shaped boards, and the movable sailboard is vertically arranged on the inner side of the fixed sailboard in a sliding mode. The linear driving module drives the movable sailboard to ascend or descend, so that the movable sailboard extends out of or retracts into the inner side of the fixed sailboard. A square window is formed in the movable sailboard, and the multiple opening and closing blades are sequentially arranged on the inner side of the square window from top to bottom and are in running fit with the movable sailboard. The blade adjusting mechanism drives the opening and closing blades to rotate synchronously in the same direction, so that the square window is opened or closed. The height and the windward area of the wing sail are adjusted by introducing the structure of the liftable movable sailboards and the opening and closing blades, so that different wind speeds, sea conditions and sailing requirements are met, the sailing performance of the unmanned sailboat is optimized, the sailing thrust is precisely controlled, and the stability and the safety are improved.

The invention provides a vehicle with a battery changing bottom support system, a power battery box assembly and a battery changing method.The vehicle comprises a battery changing bottom support, the top face of the battery changing bottom support is connected with a battery box, the battery box comprises a first rectangular frame, and the first rectangular frame comprises a hoisting frame at the top, a bottom frame at the bottom, a left frame and a right kettle frame; a battery cluster formed by stacking a plurality of power batteries PACK is arranged in the first rectangular frame, and a water cooling unit and a battery management system PDU are arranged in the hoisting frame; a lateral locking mechanism for limiting the battery box is arranged in the bottom frame, the lateral locking mechanism comprises a lateral pin, and the lateral pin can clamp the battery box and the battery replacing bottom support or is separated from the battery replacing bottom support under the hoisting of hoisting equipment. The spine-free tower type power battery is adopted, and in a limited space, the height of a battery box assembly of a new energy vehicle is reduced, the gravity center is lowered, the safety of the vehicle is improved, and the probability of vehicle accidents is reduced.

The application discloses a heat pump participating type hybrid cooling system for a wind turbine generator unit and a control method thereof, which comprises a nacelle cooling water circulating unit, a radiator cooling water circulating unit, a heat pump unit, a first cooling liquid reversing valve and a second cooling liquid reversing valve. The nacelle cooling water circulating unit is connected with the radiator cooling water circulating unit through the heat pump unit, and the forward and reverse operation of refrigerant is switched through the heat pump unit. The two ends of the nacelle cooling water circulating unit are connected with the two ends of the radiator cooling water circulating unit through the first cooling liquid reversing valve and the second cooling liquid reversing valve respectively, and the flow direction of the cooling liquid is controlled through the opening of the first cooling liquid reversing valve and the second cooling liquid reversing valve. The application can effectively compensate the heat dissipation performance of a natural wind cooling radiator under the condition of medium and low wind speed, improve the economy of the wind turbine generator unit, and realize effective preheating of the wind turbine generator unit through the characteristics that the heat pump can switch the forward and reverse operation.

The utility model discloses an insulator's wind -resistant protection structure, including first hanging board, insulator string and second hanging board, and insulator string left and right sides symmetry set up rotating mechanism and pendulum mechanism, the outer wall of insulator string is fixedly installed with the installation carrier plate, and the outer wall of installation carrier plate is fixedly connected with fixed plate, and the middle part of fixed plate is connected with first axle sleeve through first fixed rod and fixed nut, and first axle sleeve is equipped with first graphite self -lubricating bearing and connects second fixed rod, and second fixed rod end is connected with pendulum mechanism through second axle sleeve and second graphite self -lubricating bearing, and pendulum mechanism includes hanging rod, tungsten alloy pendulum, guide vane and limiting nut, and the top of hanging rod is provided with limiting nut, and hanging rod is fixed in second graphite self -lubricating bearing through limiting nut, and the wind -resistant protection structure of this insulator passes through the inertia damping effect of rotating mechanism's multiple degree of freedom moment transmission and pendulum mechanism, forms " dynamic capture, energy conversion, airflow interference's " three -fold protection mechanism.