3247results about How to "Improve space utilization" patented technology

The invention discloses a three-degree-of-freedom series-parallel hybrid humanoid robot waist structure, and relates to the technical field of robots. The defects that an existing multi-degree-of-freedom waist structure is not compact enough, limited in precision, low in rigidity and poor in stability are overcome. The robot comprises a yaw joint mechanism and a pitching-sidesway joint mechanism which are connected in series, upper limbs and legs of the robot are connected through the yaw joint mechanism and the pitching-sidesway joint mechanism, and the yaw joint mechanism can drive the upper limbs of the robot to do yaw motion; the pitching-sidesway joint mechanism comprises a movable platform, a static platform, a joint universal joint and two joint driving assemblies, the movable platform is fixedly connected with the upper limbs of the robot, the static platform is fixedly connected with the legs of the robot, the joint universal joint is connected with the movable platform and the static platform, and the two joint driving assemblies are symmetrically arranged on the left side and the right side of the joint universal joint; and the two joint driving assemblies are connected with the movable platform and the static platform correspondingly, and when the two joint driving assemblies drive the movable platform, the movable platform can do pitching motion and / or side-sway motion around the joint universal joint.

The invention discloses an external bias pixel structure of a light receiving stage circuit in a dynamic vision sensor pixel. The external bias pixel structure comprises a photodiode, a logarithmic tube, an amplifier tube, a switch tube and a bias tube, the bias tube, the switch tube and the amplifier tube are sequentially connected in series, a source electrode of the bias tube is connected with a power supply, a drain electrode of the bias tube is connected with a drain electrode of the switch tube, a source electrode of the switch tube is connected with a drain electrode of the amplifier tube, and a source electrode of the amplifier tube is grounded; the grid electrode of the bias tube is in signal connection with Vbias, the grid electrode of the switch tube is in signal connection with Vcpr, the source electrode of the switch tube and the drain electrode of the amplifier tube are connected with the grid electrode of the logarithmic tube, the drain electrode of the logarithmic tube is connected with a power supply, the source electrode of the logarithmic tube is connected with the negative electrode of the photodiode, and the positive electrode of the photodiode is grounded. And a grid electrode of the amplifier tube is also connected between the source electrode of the logarithmic tube and the negative electrode of the photodiode.

The invention discloses a floating type photovoltaic platform device capable of actively adjusting the angle of a photovoltaic module, which comprises floating bodies, a photovoltaic mechanism, a central control system, connecting floating bodies and gravity anchors, and is characterized in that the photovoltaic mechanism is mounted on the floating bodies, the floating bodies are connected with the gravity anchors, the gravity anchors are placed in a water area, the plurality of floating bodies are connected through the connecting floating bodies, and the central control system is connected with the central control system. The central control system is installed on the connecting floating body, the central control system is respectively connected with the floating body and the photovoltaic mechanism, the floating body comprises an adjusting air cushion and a supporting floating body, the adjusting air cushion is arranged on the supporting floating body, the photovoltaic mechanism is arranged on the adjusting air cushion, and the supporting floating body is respectively connected with the connecting floating body and the gravity anchor. The sun position and the illumination intensity are monitored in real time through the central control system, the angle of the photovoltaic mechanism is actively adjusted through the adjusting air cushion, it is ensured that the photovoltaic assembly can receive sunlight at the optimal angle all the time, and therefore the photoelectric conversion efficiency is remarkably improved.

The utility model provides an integrated energy storage device. The energy storage integrated device comprises an electrical cabin; the energy storage integrated cabinet is arranged in the electrical cabin; the energy storage integrated cabinet comprises a cabinet body, and the cabinet body comprises a first cavity, a second cavity and a third cavity which are arranged at intervals in the first direction; the energy storage integrated cabinet further comprises an alternating current and control assembly, a direct current distribution assembly and a cable assembly. The alternating current and control assembly is located in the first cavity; the direct-current power distribution assembly is located in the second cavity; the cable assembly is located in the third cavity. The alternating current and control assembly, the direct current power distribution assembly and the cable assembly are integrated in the energy storage integrated cabinet, the space utilization rate of the electrical cabin is improved, and maintenance personnel can conveniently conduct overhaul and maintenance.

The invention provides a liquid cooling module and a battery pack, the liquid cooling module comprises a second liquid cooling plate and a third liquid cooling plate, the second liquid cooling plate is internally provided with a flow channel, the third liquid cooling plate and the second liquid cooling plate are arranged at an interval, and the third liquid cooling plate is provided with a first cooling part; according to the liquid cooling device, the first cooling part is arranged to be communicated with the flow channel so as to guide the cooling liquid into the first cooling part and / or guide the cooling liquid out of the first cooling part, so that the cooling liquid can flow between the second liquid cooling plate and the third liquid cooling plate, the flowing path of the cooling liquid is simplified, and the requirement of a bent or overlong pipeline is reduced; and the internal space utilization rate of the battery pack is improved.

The invention relates to the technical field of logistics, and particularly discloses an automatic sorting goods shelf and a sorting system thereof.The automatic sorting goods shelf comprises a base, two goods shelf bodies are installed in the middle of the top end of the base, and a plurality of lifting mechanisms are installed on the two goods shelf bodies; the lifting mechanism comprises a storage box, a through opening, a fixing frame, a positioning mechanism, a double-head motor, a driving shaft and a lifting gear. After a double-head motor is started, a lifting gear is precisely meshed with a tooth groove to drive a storage box and a placing goods shelf to move up and down, then a first driver is started, and a double-head screw is driven to rotate through tight meshing transmission of two bevel gears to enable two positioning blocks to be accurately inserted into corresponding positioning grooves, so that the storage box is firmly and stably fixed; by means of the design, the height of each layer of the goods shelf can be flexibly adjusted so as to adapt to goods of different sizes, the space utilization rate of the goods shelf is greatly improved, and the sorting difficulty and time cost are effectively reduced.

The invention relates to the technical field of robots, in particular to a waist and hip integration mechanism and a humanoid robot. The waist turnover driving piece is arranged on the hip support; the two lateral extension driving pieces are oppositely arranged on the hip support, and the axes of the driving ends of the two lateral extension driving pieces coincide; the two side unfolding supports are connected to the driving ends of the side unfolding driving pieces correspondingly. The two pitching driving parts are respectively arranged on the side extension bracket; the two pitching supports are connected to the driving end of the pitching driving piece. The two hip turnover driving pieces are arranged on the pitching support, and the driving ends of the hip turnover driving pieces are connected with leg mechanisms of the humanoid robot. Nine degrees of freedom at the waist and hip joints of a traditional humanoid robot are optimized into seven degrees of freedom, the number of motors is reduced, the overall weight is reduced, high flexibility and maneuverability are kept, meanwhile, the cruising ability is improved, more space is vacated for the robot, and the lightweight design of the robot is achieved.

The invention provides a cylindrical lithium battery. The sum of the areas of all second holes of a positive collector plate in the cylindrical lithium battery is 0.9-1.5 times of the area of a first hole, a fusing groove is formed in a tail body part of the positive collector plate, and the minimum sectional area S2 of the tail body part at the position of the fusing groove is 45%-65% of the overall sectional area S1 of the tail body part; a negative collector plate in the cylindrical lithium battery is provided with a heightening platform with a flat surface, the diameter D8 of the heightening platform is 28%-38% of the diameter D7 of the negative collector plate, and the height difference H4 between the surface of the heightening platform and the surface of the first side is 18%-30% of the thickness T4 of the negative collector plate. By reasonably designing the necking part, the positive collector plate and the negative collector plate, the cylindrical lithium battery disclosed by the invention is balanced in multiple aspects of liquid injection performance, safety, weldability and the like, and the battery performance can be improved.

The invention provides a confluence area vehicle control method and system in a man-machine mixed driving environment. The method comprises the following steps: collecting traffic data of a main road and an acceleration ramp of a highway confluence area in real time; taking a position at a certain distance from the convergence point at the upstream of the main road in the convergence area as a first control point, and taking a position at a certain distance from the convergence point at the upstream of the acceleration ramp as a second control point; the type combinations of two vehicles passing through the first control point of the main road of the confluence area are judged, and the optimal speed from the second control point of the acceleration ramp to the confluence point is calculated according to the different type combinations; selecting an optimal driving lane for the vehicle according to the traffic data of each lane of the main road; the driving conditions of the HV, the CAV and the CAV fleet are analyzed according to the traffic data collected in real time, the vehicle speeds of the CAV and the CAV fleet are controlled and adjusted, the optimal driving speed of the HV is prompted, and it is ensured that all vehicles can safely and rapidly pass through the confluence area.

The invention discloses a liquid cooling dehumidification unit and relates to the field of humidity control, the liquid cooling dehumidification unit comprises a second loop and a bypass branch, a compressor provides power for the second loop, a high-temperature refrigerant of an evaporator is conveyed to a condenser to dissipate heat and cool the outside, and the cooled refrigerant flows back to the evaporator; the bypass branch and the evaporator are arranged in parallel, and the refrigerant cooled by the condenser is divided into two paths to flow through the bypass branch and the evaporator respectively, so that the bypass heat exchanger and the evaporator form low temperature; the bypass heat exchanger and the condenser are arranged side by side, the second loop and the bypass branch share the same fan for heat dissipation, the fan guides airflow to pass through the bypass heat exchanger and the condenser respectively, high-temperature air formed after passing through the condenser is cooled by the bypass heat exchanger, and water vapor carried when the high-temperature air reaches the bypass heat exchanger is condensed into water drops. Condensation and dehumidification are achieved. And the second loop and the bypass branch share the same fan, so that structures and pipelines are reduced, and the space utilization rate is increased.

The invention relates to an AR near-to-eye display technology, in particular to a two-dimensional vector body holographic grating waveguide and a manufacturing method thereof, an AR optical module and a manufacturing method, and the method comprises the steps: fixing a holographic plate to be exposed, and building a rectangular coordinate system with a second surface of the holographic plate as an XOY plane; dividing the same exposure light into a first light beam and a second light beam, enabling the first light beam to vertically irradiate the first surface of the holographic plate, and enabling the second light beam to irradiate the second surface of the holographic plate at a # imgabs0 # incident angle so as to form a volume holographic grating with a first grating component; enabling the first light beam to vertically irradiate the first surface of the holographic plate, and enabling the second light beam to irradiate the second surface of the holographic plate at a # imgabs1 # incident angle to form a volume holographic grating with a second grating component; wherein the propagation direction of the orthographic projection of the volume holographic grating vector of the first grating component on the second surface and the propagation direction of the orthographic projection of the volume holographic grating vector of the second grating component on the second surface are symmetric about the X axis.

The invention discloses a dexterous hand finger based on connecting rod transmission, a bionic mechanical arm and a humanoid robot, belongs to the field of bionic mechanical arms, solves the problem that a transmission mechanism of an existing dexterous hand is low in response speed, and adopts the technical scheme that the dexterous hand finger mainly comprises a finger base and a finger body, a driver and a transmission mechanism in transmission connection with the driver are arranged on the finger base, the driver drives the finger body to bend and / or swing through the transmission mechanism, the transmission mechanism comprises a guide piece and a sliding block installed on the guide piece in a sliding mode, and the sliding block is in transmission connection with the finger body. A traction rope connected with the sliding block is wound on an output shaft of the driver, the driver controls the output shaft to rotate forwards and backwards so as to drag the sliding block to slide back and forth along the guiding piece through the traction rope, and then the finger body is controlled to bend and / or swing. The finger is mainly used for driving the sliding block to move through the pulling rope so as to control the finger body to bend and swing, and the response efficiency of the finger body can be improved.

The invention provides a collaborative parking method and device, electronic equipment and a storage medium, and relates to the technical field of intelligent parking. The method comprises the following steps: acquiring a predicted parking path of each vehicle in a preset scene through a preset rule; whether path conflicts and space occupation conflicts exist among the vehicles or not is detected according to the predicted parking paths, and when the path conflicts and / or the space occupation conflicts exist among the vehicles, the predicted parking paths of the vehicles with the path conflicts and / or the space occupation conflicts are optimized. According to the method, the predicted parking path of each vehicle in the preset scene is obtained through the preset rule, so that the predicted parking path of each vehicle can be determined, information sharing among vehicles of different brands and models can be realized, and then path conflicts and space occupation conflicts among the vehicles are detected according to the predicted parking paths, so that the parking efficiency of the vehicles is improved. At the moment, the predicted parking path is optimized, orderly and efficient parking among multiple vehicles in the parking lot is achieved, and the parking efficiency and the space utilization rate are improved.

The invention relates to the technical field of filters, in particular to a dual-mode resonator and a dual-mode filter. The dual-mode resonator comprises a metal cavity and a medium resonance body; the number of the metal cavities is two, and the two metal cavities are arranged on the two opposite sides of the medium resonance body respectively. The opening end of the metal cavity faces one end of the dielectric resonator; a conducting ring is arranged between the metal cavity and the dielectric resonant body, and the metal cavity and the conducting ring form a resonant cavity. The dual-mode filter comprises a first resonator and a second resonator; the first resonator is a dual-mode resonator; the first resonator and the second resonator are connected in series through a coupling structure. The conducting rings and the metal cavities are arranged on the two opposite sides of the dielectric resonance body, the conducting rings and the metal cavities form the resonance cavities, and the dual-mode resonance effect is achieved. The overall size is small, the space utilization rate is high, and production is easy.

The invention relates to the technical field of semiconductor devices, in particular to a highly-integrated 2.5 D packaging structure and method, and the structure comprises a supporting frame structure, a carrier plate, and an auxiliary structure. A chip is arranged on the front surface of the carrier plate, and a bonding wire is arranged between the chip and the carrier plate; a component is arranged on the back surface of the carrier plate, the carrier plate is arranged in an inner cavity of the supporting frame structure, a solder ball is arranged at the bottom end of the supporting frame structure, and an auxiliary structure is arranged in the supporting frame structure; surface mounting is mainly carried out on the back surface of the carrier plate, so that functional devices can be concentrated on one carrier plate to work, the space utilization rate is improved, and more components are added; and moreover, the auxiliary structure has an auxiliary heat dissipation effect on the packaging structure, and convenience is provided for the installation work of the packaging structure through the connecting assembly arranged in the auxiliary structure.

The embodiment of the utility model provides a multi-consumable extrusion printing device and 3D printing equipment applying the multi-consumable extrusion printing device. The multi-consumable extrusion printing device comprises a driving assembly, a switching assembly and a plurality of extrusion assemblies. The multiple extrusion assemblies are arranged side by side, each extrusion assembly comprises an extrusion gear set, and the extrusion gear sets are used for extruding consumables in the first direction; the driving assembly comprises a gear driving part, and the gear driving part is constructed to be capable of being meshed with one of the extrusion gear sets; the switching assembly comprises an abutting part, the abutting part is arranged on the sides, away from the gear driving part, of the multiple extrusion assemblies, and the abutting part is configured to abut against one extrusion assembly so that the extrusion gear set corresponding to the extrusion assembly can move in the first direction, and therefore the extrusion gear set can be meshed with the gear driving part.

The invention provides an intelligent refrigerator article storage management method and system. The method comprises the steps that accurate basic data is provided for dynamic storage optimization and healthy diet recommendation; the partition and environmental parameters are dynamically adjusted according to the storage requirements of the food materials, and the preservation time is prolonged; the fresh-keeping state and the storage environment of the food materials are evaluated in real time, and the partition optimization effect is ensured; recording food material taking behaviors of the user, and generating a healthy intake model; and generating personalized diet recommendation and reminding in combination with the health demand and the storage state of the user. According to the intelligent refrigerator article storage management method and system, the food material storage efficiency is optimized through the intelligent technology, the food material utilization rate is increased, and meanwhile the personalized healthy diet requirement of a user is met.

This invention provides a method for rapid assembly of a modular tubular beam car body. The car body is divided into several independent modules, which are manufactured in parallel at independent workstations or assembly lines. Corresponding connections between different independent modules are fitted with interlocking mortise and tenon structures for coarse positioning and fastening. The manufactured independent modules are then automatically transferred to an assembly station, where a robot grasps and rapidly assembles them. After assembly, bolts and / or structural adhesive are used to fasten the mortise and tenon joints. Compared to traditional assembly line production processes, this method significantly improves efficiency and economy, effectively reduces floor space, and overcomes the limitation of existing "unpacking processes" that are only suitable for single-model production, thus facilitating flexible manufacturing and rapid iteration across multiple models.

The invention discloses a large-depth pressure-resistant communication antenna of an unmanned underwater vehicle and the underwater vehicle, and belongs to the technical field of underwater vehicles, the antenna comprises an antenna shell, a pressure-resistant cabin body and a fin-shaped component, the pressure-resistant cabin body is a component forming a cabin body segment of the underwater vehicle, and the fin-shaped component is a fin-shaped component. The antenna shell comprises a radial supporting part fixed to the pressure-resistant cabin and a shell part fixed to the top end of the radial supporting part, the fin-shaped component is fixed to the radial supporting part, an antenna unit is installed in the shell part, and a wireless communication function unit connected with the antenna unit is arranged in the pressure-resistant cabin. The large-depth pressure-resistant communication antenna of the unmanned underwater vehicle has the advantages of being excellent in communication quality, high in pressure resistance, optimized in size, high in space utilization rate, stable and reliable for a long time and the like, and can meet operation requirements in a deep sea environment.

The present invention provides an endoscope head end and an endoscope, the endoscope head end having a first observation window and a second observation window provided adjacent to each other on the tip surface of the endoscope head end, and a nozzle provided on the perpendicular bisector of a connecting line connecting the center of the first observation window and the center of the second observation window, the first side wall and the second side wall of the nozzle are located on the two sides of the perpendicular bisector, the distance between the first side wall and the second side wall is gradually increased when the nozzle gets close to the connecting line, and the upper wall of the nozzle is provided with a protruding part protruding towards the direction of the connecting line relative to the first side wall and the second side wall. The protruding part is located in an area outside the visual field range of the endoscope between the first observation window and the second observation window, and the top end, with the shortest distance from the connecting line, of the protruding part is located on the perpendicular bisector. According to the present invention, when the observation windows of two optical systems are cleaned using one nozzle, the nozzle can efficiently clean the first observation window and the second observation window without appearing in the field of view of the optical systems.

According to the thin-layer sound absorption superstructure composite acoustic enclosure and the using method, the acoustic enclosure is composed of the cover plate, the conformal frame, the thin-layer sound absorption superstructures and the porous sound absorption materials, the variety of the thin-layer sound absorption superstructures is not limited to one, and the broadband noise reduction effect can be achieved through the parallel superposition design of the thin-layer sound absorption superstructures and the porous sound absorption materials. Wherein the thin-layer sound absorption superstructure can absorb noise in different frequency ranges of medium and low frequency bands, the porous sound absorption material can absorb noise in medium and high frequency bands, and the working bandwidth of the composite acoustic shield after parallel connection and superposition can cover the low, medium and high wide frequency bands. The thin-layer sound absorption superstructure composite acoustic shield further has the advantages of being high in space utilization rate, high in space adaptability, small in thickness, low in surface density and high in material replaceability. Compared with an existing sound insulation cover, on the premise that the thickness is small and the surface density is low, the working frequency band is wider, the sound insulation effect is better, and the sound insulation cover has wide application prospects in noise control of various mechanical and electrical products.

The utility model discloses a terminal stripping and pressing machine which comprises a shell, a rotary base, a stripping and wire twisting mechanism, a terminal crimping mechanism, a terminal arrangement mechanism, a terminal carrying mechanism, a wire clamping mechanism and a control mechanism. The rotating base can rotate the first mounting surface and the second mounting surface so as to switch between the first state and the second state; the stripping and twisting mechanism is used for stripping an insulating layer and twisting the wire bundle into a single-strand wire; the terminal crimping mechanism is used for crimping the terminal at the end part of the wire; the terminal arrangement mechanism is used for storing to-be-crimped terminals; the terminal carrying mechanism is used for carrying the terminals in the terminal arrangement mechanism to the terminal crimping mechanism; the wire clamping mechanism is used for fixing wires; and the control mechanism is connected with and controls the wire clamping mechanism, the terminal carrying mechanism, the terminal arranging mechanism, the terminal crimping mechanism, the peeling and wire twisting mechanism and the rotating base. The terminal stripping and pressing machine is small in size and high in collaboration degree.

The invention discloses a light-weight wind measurement laser radar system based on an unmanned aerial vehicle platform. The light-weight wind measurement laser radar system comprises a servo scanning unit, a radar measurement unit and a system hanging frame, the radar measurement unit adopts a lightweight main body frame, and adopts various lightweight materials in structural design; the internal space of the radar measurement unit is divided into a plurality of different subareas, the plurality of different subareas are arranged in a stacked mode, and the aspects of hardware scheme, composition, stacking mode and the like are redesigned. Hardware and a structure are deeply fused, so that the system has obvious advantages in size and weight, miniaturization and light weight are realized, and the weight index of the radar system reaches a 5-7kg level. Wherein the servo scanning unit further comprises a two-degree-of-freedom scanning servo device which enables the system to realize three-dimensional scanning in a large range, various scanning modes such as PPI, VAD and RHI are realized, and the tail end direction of the servo scanning unit is adjusted according to the current attitude information of the unmanned aerial vehicle platform while scanning is performed; and the influence caused by the attitude change of the unmanned aerial vehicle platform is compensated.

The utility model discloses a vehicle electric unlocking lock which comprises a shell body, the shell body is provided with a driving mechanism, a rocker arm assembly, a pawl assembly and a ratchet wheel assembly, the ratchet wheel assembly is used for moving and switching between a locking position and an unlocking position relative to a plunger latch, and a retaining structure is arranged between the pawl assembly and the ratchet wheel assembly. The pawl assembly is used for moving and switching between a keeping position and a releasing position relative to the ratchet assembly, and when the ratchet assembly moves to the locking position, the driving mechanism drives the pawl assembly to move to the keeping position, and the ratchet assembly is kept at the locking position through the keeping structure; the rocker arm assembly comprises an electric opening rocker arm and an inner opening rocker arm, and the rotating center shaft of the electric opening rocker arm and the rotating center shaft of the inner opening rocker arm are perpendicular to the rotating center shaft of the pawl assembly. The driving mechanism drives the electric opening rocker arm to rotate and drives the inner opening rocker arm to reversely rotate relative to the electric opening rocker arm, and the pawl assembly is driven to be away from the ratchet wheel assembly and moves to the release position from the holding position. The electric unlocking device has the effects of compact structure, safety and reliability in use and electric unlocking.

The invention relates to the technical field of welding devices, and discloses an anti-explosion valve rod welding device which comprises a welding table, a frame is fixedly connected to the top of the welding table, a fixing device is arranged at the top of the frame, a discharging device is arranged at the top of the welding table, and a slag removing device is arranged at the bottom of the welding table. When the explosion-proof valve rod starts to be welded, the explosion-proof valve rod is placed in a welding area, so that the surface of the explosion-proof valve rod can be fixed through an inner arc of an arc-shaped plate I under the condition that the circumferential surface of the explosion-proof valve rod needs to be welded, and the explosion-proof valve rod is fixed more stably during welding; according to the anti-explosion valve rod clamping device, the anti-explosion valve rod can be clamped more stably, the situation that the anti-explosion valve rod is damaged due to the fact that the force of the air cylinder is too large can be avoided through buffering provided by the first spring in the fixing process, meanwhile, the anti-explosion valve rod can be clamped more stably, and then the stability of the anti-explosion valve rod in the welding process can be further improved.

The invention relates to the technical field of box culvert prefabricated part production, in particular to an integral box culvert assembly line construction technology which comprises the steps that preparation before construction is conducted, specifically, technical preparation, personnel preparation, material preparation and mechanical equipment preparation are conducted, and condition guarantee is provided for formal box culvert production; processing the steel bars into a steel bar cage, storing the steel bar cage and waiting for entering a mold; after the mold is installed in place, the mold is cleaned, debugged, maintained and regularly inspected; preparation work before concrete pouring, mold cleaning, oil coating, steel bar mold entering and embedded part mounting are conducted; pouring concrete; performing natural or steam curing; the box culvert is demoulded, and components are marked; the box culvert is stored and watered for maintenance; a single-circulation assembly line is adopted, box culvert production stations are arranged, all procedures of box culvert production are dynamically completed clockwise, the occupied area is reduced, meanwhile, production management and material transportation are facilitated, the production efficiency is improved, and the space utilization rate is increased.

The invention relates to a foldable electric photovoltaic bracket and a method. The foldable electric photovoltaic bracket comprises a base, a multi-stage electric push rod and a photovoltaic panel, the two sides of the base are connected with multi-stage electric push rods, and the multi-stage electric push rods are connected with folding photovoltaic panel assemblies through photovoltaic panel fixing pieces. A motor is arranged at the bottom of the multi-stage electric push rod and used for driving the multi-stage electric push rod to stretch out and draw back. The folding photovoltaic panel assembly is unfolded and folded along with stretching and retracting of the multi-stage electric push rod. The beneficial effects of the invention are that the photovoltaic module is unfolded and folded by adopting a multi-stage telescopic electric push rod mechanism, and the deployment flexibility of the photovoltaic system is significantly improved. According to the design, the photovoltaic system can rapidly adapt to various terrains and environmental conditions, and is especially suitable for temporary construction sites, outdoor activities, emergency response and other scenes needing rapid deployment and evacuation.

The present application relates to the field of heat dissipation units, and in particular to a power converter and energy storage system with an air-liquid composite heat dissipation unit. The power converter includes a housing, a power converter and an air-liquid composite heat dissipation unit. Among them, the power conversion circuit includes a circuit board and a power tube, the circuit board and the upper cover plate of the housing are stacked and arranged, and there is a gap for air circulation between the top of the circuit board and the upper cover plate of the housing, and the power tube is located between the bottom of the circuit board and the lower cover plate of the housing. The air-liquid composite heat dissipation unit includes a fan and a cold plate, the cold plate is fitted with the side of the power tube, the fan is arranged between the bottom of the circuit board and the lower cover plate of the housing, and there is a gap for air circulation between the fan and the side plate of the housing. The power converter with an air-liquid composite heat dissipation unit disclosed in the present application dissipates heat for power tubes with high heat dissipation requirements through a cold plate, and dissipates heat for air in the equipment through a fan, which helps to improve heat dissipation efficiency and reduce heat dissipation costs.

The invention relates to a gas nano purifier. The gas nano purifier comprises a mounting seat, the gas storage bin is installed on the installation base and used for storing clean gas, the side wall of the upper portion of the gas storage bin extends upwards to form an installation plate, and a gas path through hole is formed in the middle of the installation plate; the gas-water separator is mounted on the mounting plate and is used for carrying out primary purification on to-be-cleaned gas; the adsorption tower is mounted on the mounting plate and is used for carrying out secondary purification on the to-be-cleaned gas; gas to be cleaned sequentially flows through the gas-water separator and the adsorption tower and then enters the gas storage bin; the adsorption tower is communicated with the gas storage bin through an exhaust pipe; and the exhaust pipe penetrates through the gas path through hole. Through the arrangement, the installation operation is greatly simplified, and the integrity and the space utilization rate of equipment are improved.

The invention provides a photovoltaic panel erecting device for construction of a photovoltaic power station, and relates to the technical field of photovoltaic panels, the photovoltaic panel erecting device comprises a rack, a control box is fixedly connected to the upper surface of the rack, a lifting rod is slidably connected to the surface of the control box, and a lifting frame is fixedly connected to the upper surface of the lifting rod; the surface of the lifting frame is rotatably connected with a first rotating rod through a bearing, the outer surface of the first rotating rod is fixedly connected with a first rotating plate, the surface of the first rotating plate is rotatably connected with a second rotating plate through a bearing, and the surface of the second rotating plate is fixedly connected with a second rotating rod; the third rotating rod and the first rotating rod rotate synchronously and drive the photovoltaic panel body on the surface to rotate, at the moment, the angle of the photovoltaic panel body can be adjusted, sunlight can be close to the vertical angle to be incident to the surface of a cell panel through angle adjustment of the photovoltaic panel body, and therefore light energy is absorbed to the maximum extent, and the power generation efficiency of the photovoltaic panel is improved.