318results about How to "Compact layout" patented technology

The invention discloses a pallet protection corner automatic putting machine. The pallet protection corner automatic putting machine comprises a top protection corner putting combination machine and aside face protection corner putting combination machine; the top protection corner putting combination machine comprises a bottom circulation base and a pair of top protection corner single machines,the side face protection corner putting combination machine comprises a bottom fixed base and four side face protection corner single machines, the top face protection corner single machines are provided with electrical control parts, top protection corner containing grooves, limiting mechanisms, and top protection corner mounting claws, the top protection corner mounting claws grab protection corners in the top protection corner containing grooves, and put the protection corners on four edges of the top of a packaging box, each side face protection corner single machine comprises a second electrical control part, a side protection corner containing groove, and a side protection corner mounting claw, and the side protection corner mounting claws grab the protection corners in the side protection corner mounting grooves and put the protection corners on the four sides of the side face of the packaging box. The pallet protection corner automatic putting machine is reasonable in layout,smooth in operation, high in adaptation, automatic in full process, free of artificial duty and capable of greatly improving protection corner putting and threading packaging capacity.

The utility model relates to the technical field of man-machine interaction of electronic equipment, and particularly discloses a backlight touch key. The backlight touch key comprises a shell and a plurality of key assemblies, each key assembly comprises a key unit and a touch conduction unit, and each key unit is provided with a first end and a second end which are opposite to each other; the first end is embedded in the shell, the key unit penetrates through the touch conduction unit, the outer surface of the touch conduction unit is provided with a capacitive sensing surface, the capacitive sensing surface is attached to the shell, and the relative position of the shell and the touch conduction unit is fixed. According to the backlight touch key, the specific structure is improved, so that high integration of the structure and simplification of the manufacturing process are realized while the backlight uniformity and the induction sensitivity are ensured.

The application discloses a grey cloth placing tool and method for floor mat production, and relates to the technical field of industrial automation production. The machine frame is provided with an X-axis driving module, a Y-axis driving module and a Z-axis driving module matched with the cloth lifting module and used for driving the cloth lifting module to move on the machine frame. The application has the advantages that the grey cloth lifting, conveying and flattening are integrated through the cooperation of negative pressure adsorption and tension control structure, and wrinkles are effectively inhibited; the double-mode adsorption of negative pressure and high-frequency vibration is adopted, high-permeability and conventional grey cloth are compatible, and the adsorption failure problem is solved; the vibration structure is self-driven by airflow, and no additional power is needed, so that the structure is simple and reliable; the multi-point flexible adsorption is matched with the rotatable mechanism, so that the grey cloth is protected from damage; the three-axis linkage and modular design improve the automation and universality, adapt to efficient continuous production, and improve the production quality, efficiency and equipment applicability of the floor mat.

The utility model relates to the technical field of pipe detection, in particular to an enhanced design of detection precision of a detection device. The utility model discloses a steel pipe surface defect detection device which can keep high-precision dynamic stability in the detection process, provide a clean detection environment and optimize the imaging precision of the steel pipe surface defect detection device. The detection device comprises a shell, an imaging assembly arranged in the shell and a clamping assembly used for clamping a steel pipe, and the shell is provided with a dustproof ring used for allowing the steel pipe to pass through. The clamping assembly comprises a downward pressing device moving in the vertical direction and a supporting roller arranged on a downward pressing path of the downward pressing device, and the supporting roller is used for supporting the bottom of the steel pipe and guiding the steel pipe to enter the shell through rolling movement.

The invention discloses a micromotor-driven distributed turbulent flow pumpless liquid cooling device for space thermal control. The micromotor-driven distributed turbulent flow pumpless liquid cooling device comprises a pipeline body and an impeller pump, the impeller pump comprises an impeller with the outer diameter being D and capable of actively rotating. When the impeller pump is used for overall heat dissipation of a single small-size electronic element, one impeller pump is arranged in the cooling flow channel at the position 0.5 D-1. 5D away from the upstream of the small-size electronic element; when the impeller pump is used for eliminating the hot spots of the large-size electronic element, one impeller pump is arranged in the cooling flow channel at the position 0.5 D-1. 5D away from the upstream of each hot spot to be eliminated. An external pump is removed, and the impeller pump is arranged in the cooling flow channel, so that on one hand, a cooling working medium is pumped, on the other hand, a turbulent flow effect is achieved on the cooling working medium, a boundary layer is broken, and the heat dissipation effect is improved. In addition, for a large-scale heat dissipation scene, a plurality of impeller pumps can be arranged in the cooling flow channel in an array mode, the impeller pumps can be placed at local hot spots in a targeted mode, targeted heat dissipation is achieved, and the heat dissipation efficiency and uniformity are further improved.

The utility model discloses a waterproof resistive touch screen, which relates to the technical field of resistive touch screens, and comprises a shell, a hydrophobic layer, buffer slots I and buffer slots II, a plurality of buffer slots I are formed in the front side, the rear side, the left side and the right side of the shell, and balls I are movably connected in the buffer slots I; a plurality of first buffer grooves are formed in the lower end of the shell, first reset springs are fixedly connected into the first buffer grooves, a plurality of second buffer grooves are formed in the lower end of the shell, second balls are movably connected into the second buffer grooves, second reset springs are fixedly connected into the second buffer grooves, and a back plate is fixedly connected into the shell. Buffer grooves with balls and reset springs are formed in the front side, the rear side, the left side, the right side and the lower end of the shell respectively, when the touch screen falls off or is collided, the balls firstly make contact with the ground or a colliding object, impact force is absorbed by compressing the reset springs, meanwhile, the balls rotate to disperse collision force, damage to the touch screen can be effectively reduced, the impact resistance of the touch screen is improved, and the service life of the touch screen is prolonged. The service life is prolonged.

This invention discloses a path planning method for a snake robot based on fuzzy collision constraints and helical trajectory, comprising the following steps: S1, establishing an overall path model using the Archimedes' spiral equation; S2, obtaining the complete motion trajectory of the multi-node system through solving the state of the first node and recursion between nodes; S3, using a fuzzy collision risk function for flexible judgment to avoid path interference between the first segment and subsequent segments; S4, using the pitch as the optimization variable and employing a simulated annealing algorithm to find the optimal path parameters to ensure safe entry into the target area. The trajectory generated by this invention is smooth and continuous, can actively predict collisions, and can quantitatively optimize path parameters, making it particularly suitable for scenarios with high requirements for motion smoothness and safety, such as narrow pipe inspection, complex terrain exploration, space-constrained situations, or the need to maneuver into specific turning spaces.

The application relates to the engine technical field and discloses an integrated brake rocker arm which comprises a rocker shaft, a lubricating oil channel and a brake oil channel are arranged in the rocker shaft and penetrate the rocker shaft in the axial direction, an electromagnetic valve seat is arranged on the rocker shaft, a high-pressure cavity which is communicated with the lubricating oil channel and the brake oil channel is arranged in the electromagnetic valve seat, an electromagnetic valve which is used for controlling the on-off of the lubricating oil channel and the brake oil channel is arranged in the high-pressure cavity of the electromagnetic valve seat, a plurality of air inlet rockers and exhaust brake rockers are further arranged on the rocker shaft, the air inlet rockers and the exhaust brake rockers are communicated with the lubricating oil channel, the exhaust brake rockers are further communicated with the brake oil channel, and the air inlet rockers and the exhaust brake rockers are arranged in an interleaved and spaced mode. The application integrates the conventional valve rocker and the exhaust brake rocker, cancels the split independent arrangement structure, effectively reduces the installation and arrangement space, and is higher in the integrated degree of the whole machine; and the brake hydraulic medium is realized in the built-in type transmission, the external pipeline is less, and the risk of easy wear and leakage of the external oil pipe is avoided.

The invention relates to the technical field of central gas sources, solves the problems that an existing central gas source is poor in output gas quality, tedious in system connection, low in integration level and inconvenient to assemble, and discloses a central gas source for external load gas supply, which comprises a pneumatic block, a compressor assembly, an ECU controller assembly and a dryer assembly. The compressor assembly is installed on the side face of the pneumatic block. The pneumatic block is of an integrally-formed structure, a switching valve set, an air valve set, an air inlet one-way valve, an air filter, a power limiting valve and a sensor assembly are integrated in the pneumatic block, and a valve seat for air inlet and exhaust and an air pipe connector are arranged in front of the pneumatic block. The ECU controller assembly is located on the rear end face of the pneumatic block and is parallel to the motor. The dryer assembly is located on the lower end face of the pneumatic block. And an external load inflation valve is also arranged in the pneumatic block. According to the invention, the integration level of the system is improved, external pipelines are reduced, the system structure is simplified, the installation and maintenance are more convenient, and the fault occurrence rate is reduced.

This invention relates to the field of condensate recovery technology, specifically a closed-loop condensate recovery device, comprising a tank with a water outlet pipe at the bottom. The tank is divided into three zones—a central steam buffer zone, a lower condensate collection zone, and an upper negative pressure condensation zone—by two horizontal baffles. This closed-loop condensate recovery device eliminates the need for additional power components such as pumps. It relies on the downward pressure difference of the condensate in the negative pressure condensation zone and the negative pressure generated by steam condensation as the drainage driving force. It fully utilizes the system's own energy, eliminating dependence on external power and significantly reducing operating energy consumption. The condensate introduced by the downward pressure drainage pipe creates a downward impact, which, combined with the negative pressure introduced by the negative pressure venting pipe, forms a dual drainage drive, providing stronger power and higher efficiency than traditional single gravity drainage. Simultaneously, it drives the condensate in the pipe to repeatedly flush, comprehensively covering the entire pipe area and thoroughly removing impurities and silt from different sections, offering better anti-clogging performance than unidirectional disturbance.

This application provides a mobile oxygen generation and supply cabin, including a cabin body. An oxygen generation chamber and a power supply chamber are arranged side-by-side inside the cabin. An oxygen generator unit is located in the oxygen generation chamber, and a generator is located in the power supply chamber to power the oxygen generator unit. A storage compartment is located at the front right of the oxygen generation chamber, where oxygen cylinders are stored. The oxygen generator unit includes an air compressor, an air tank, an oxygen generator, a filling machine, and an oxygen tank. The air compressor and oxygen generator are arranged side-by-side front-back and located on the left side of the storage compartment. The air tank, filling machine, and oxygen tank are located at the rear of the storage compartment, with the filling machine above the air tank and the oxygen tank in front of the air tank and filling machine. This cabin integrates power generation and oxygen generation equipment into the cabin body, forming an independent and mobile oxygen generation and supply system. It can be transported and relocated, not only replenishing oxygen cylinders but also serving as a mobile oxygen supply station to continuously supply oxygen.

A composite film quality on-line monitoring device based on multispectral imaging belongs to the field of composite film monitoring devices and structurally comprises a monitoring rack, a monitoring platform, a film guide frame and an output frame, an illumination assembly is arranged on the upper portion of the front end face of the monitoring rack, and a composite film input port is formed in the middle of the monitoring rack. At least one identification assembly is vertically arranged at the upper end of the monitoring rack; the monitoring platform is arranged on the lower portion of the front end face of the monitoring rack, the top face of the monitoring platform is provided with the flexible mechanical property testing mechanism, the composite film quality online monitoring device adopts the flexible mechanical property testing mechanism arranged on the monitoring platform and can operate synchronously with a production line, compression force and pulling force are rapidly applied after static monitoring of a composite film, and the quality of the composite film is monitored. The mechanical parameters such as tensile strength, wrinkle resistance and elongation at break of the composite film are obtained in real time under the cooperation of the recognition assembly, and compared with the prior art, compact layout of a production line is further facilitated.

The utility model relates to the technical field of clothes treatment, in particular to a clothes treatment device and combined clothes treatment equipment. By arranging the adapter, the first air port and the second air port are respectively communicated with the corresponding cylinder bodies, so that the first water outlet and the second water outlet are respectively consistent with the internal air pressure of the corresponding cylinder bodies, and the two washing cavities can operate simultaneously or independently; the siphonage phenomenon of the two drainage pipes which are draining water due to the fact that internal air is emptied is avoided, and the problem of sewage reverse flow caused by the siphonage phenomenon is prevented. In addition, the first drainage pipe, the second drainage pipe, the first air pipe and the second air pipe can be conveniently connected, supported and positioned through the adapters, the layout of the drainage assembly is more compact through the adapters, the pipeline length is reduced, the water flow resistance is reduced, and the drainage efficiency is improved.

This invention belongs to the field of space laser communication and deep space exploration technology, and discloses an integrated detection device for space laser communication monitoring and interaction. The device includes a main body, on which are integrated a solar panel, a navigation imaging device, a communication antenna, a communication receiver, a radar, a landing support, and functional components for communication monitoring, environmental perception, and interactive operation. This invention forms a closed-loop system through electrical, signal, and mechanical connections, enabling simultaneous execution of multiple tasks, significantly improving the device's space operation efficiency, reducing the load pressure on space launch vehicles, and adapting to the space constraints of on-orbit operations. The communication antenna and receiver achieve bidirectional signal interaction through a high-speed laser communication module and are linked with the navigation imaging device and environmental sensors to ensure stable transmission and status monitoring of laser communication signals, which is beneficial for practical applications and operations.

This utility model provides a wiring system for the low-voltage side of a single-phase autotransformer and a prefabricated box-type switchgear in a confined space, comprising: a low-voltage bushing of the single-phase autotransformer, an aluminum tube busbar branch bus, an aluminum tube busbar main bus, a copper tube bus, and a prefabricated box-type switchgear. The low-voltage bushing of the single-phase autotransformer is connected to the aluminum tube busbar branch bus via a flexible copper busbar; the aluminum tube busbar branch bus is connected to the phase-separated aluminum tube busbar main bus via a flexible copper busbar; the aluminum tube busbar main bus is connected to the copper tube bus; and the end of the copper tube bus is connected to the prefabricated box-type switchgear. The wiring system provided by this utility model occupies little space and has a simple and compact layout; the delta connection on the low-voltage side of the transformer uses an aluminum tube bus to reduce costs, and the connection to the box-type switchgear bus avoids terrain limitations by using a flexible copper tube bus; the prefabricated box-type switchgear occupies little space, is easy to assemble and saves construction time, and the internal switch cabinet spacing is easy to expand.

The invention discloses an integral lifting type water taking system, and relates to the technical field of water taking systems in water conservancy and hydropower engineering, the integral lifting type water taking system comprises a slope rail, the top of the slope rail extends to a catchment channel of a top working platform, and the bottom extends into a water source; the movable pump station is movably arranged on the slope track and can move up and down along the slope track; a plurality of water conveying inclined pipes which are detachably connected in sequence are arranged in parallel to the slope track, a bottom opening of the water conveying inclined pipe located at the bottommost part is connected with a water outlet of a pump machine on the movable pump station, and a top opening of the water conveying inclined pipe located at the topmost part is located above the catchment channel; the lifting mechanism is arranged on the top working platform and can make the movable pump station and the water conveying inclined pipe synchronously reciprocate along the slope track. Operators are prevented from going back and forth between the top platform and the branch pipe platform, time consumption and potential safety hazards on the way are avoided, and meanwhile the pipeline disassembly and assembly efficiency is improved.

This utility model relates to an automated transport line and testing system for testing power semiconductor devices. The system comprises N testing devices, where N is greater than or equal to two, arranged side-by-side along a first straight line. The transport line includes: a tray, each capable of holding N devices simultaneously; a first conveying channel located in front of the inlet of the testing devices for transporting the trays; a gripper mechanism comprising N gripper units, each gripper unit gripping one device; and a transport device, with the N gripper units mounted on the moving end of the transport device. The transport device drives the gripper mechanism to move, adapting the gripper units to grip the N devices on the trays and sequentially transporting the N devices to each testing device. After testing, once the N gripper units have sequentially gripped the N devices, the transport device drives the gripper mechanism to move, transporting the devices to the next workstation, thereby saving space while improving testing efficiency.

The invention provides a precise element batch turnover processing production line and method. The precise element batch turnover processing production line comprises a plurality of carriers, a transmission mechanism, an excessive glue detection mechanism, a turnover mechanism and an unlocking mechanism. The carrier is composed of a body and a cover plate, and switching between a locking state and an unlocking state can be achieved through cooperation of a cover plate positioning pin and a positioning groove. The conveying mechanism is provided with a feeding line body extending in the first direction, and the carrier can sequentially pass through a detection station, an overturning station and an unlocking station. And the excessive glue detection mechanism realizes excessive glue detection through an infrared camera and a laser sensor. And the turnover mechanism adopts a clamping assembly capable of being opened and closed to clamp the carrier, and drives the carrier to turn over through a turnover driver and a rotating shaft. The unlocking mechanism utilizes the suction head to suck the movable cover plate so as to switch the state of the carrier. According to the scheme, the production line is compact in layout and stable in operation, the functions of automatic transmission, accurate detection, stable overturning and rapid unlocking are integrated, the machining quality can be guaranteed, the batch machining efficiency can be improved, the labor cost and the reject ratio can be reduced, and the automatic and large-scale overturning machining of multi-model precision elements can be achieved.

The application relates to a safety belt adjusting structure, an automobile seat and a vehicle, and relates to the technical field of automobile seats. The adjusting structure comprises a driving mechanism, a moving mechanism and a guide piece, which are arranged in a seat back skeleton; the driving mechanism is in transmission connection with the moving mechanism; and the guide piece is installed on the moving mechanism and is provided for a safety belt. The driving mechanism can drive the guide piece to move in the direction of approaching or moving away from the neck area of a passenger, so as to guide the safety belt to correspondingly deviate. The structure can dynamically adjust the safety belt path according to the seat posture, so that the safety belt can be attached to the shoulder of an occupant in zero gravity or a conventional sitting posture, is beneficial to reducing the compression risk of the safety belt on the neck, improves the restraint effect, and improves the riding safety and comfort.

The invention discloses a process and a device for preparing LNG (Liquefied Natural Gas) and co-producing carbon dioxide from coke oven gas, belonging to the field of chemical industry. The coke oven gas subjected to fine desulfurization is divided into two paths, the first path directly enters a methanation section, the second path enters a CO conversion tower, CO is converted into CO2 through a water gas conversion reaction, and H2 is generated at the same time; the converted gas is cooled by a heat exchanger I2 or a steam boiler and then enters an alcohol amine decarburization tower, CO2 is partially or almost completely removed by spraying an alcohol amine solution, and the alcohol amine solution is heated and regenerated to obtain high-purity CO2 as a chemical raw material; the decarburized gas and the first path of gas are converged and then enter a methanation section, and H2 reacts with CO and CO2 in three methanation reactors which are connected in series and in parallel to generate CH4. The device comprises a main pipeline, a CO conversion tower, a heat exchanger, an alcohol amine decarbonization tower, an alcohol amine regeneration tower, a methanation reactor and the like. According to the invention, large-air-volume circulation and a compressor are avoided, the cost is saved, high-purity CO2 is co-produced, the CO / CO2 content and temperature rise can be flexibly regulated and controlled, and temperature runaway is prevented.

This invention discloses an independently waterproof modular biomimetic oscillating fin, belonging to the field of underwater propulsion technology. It includes a base sealing assembly with a static waterproof structure, a DC motor fixed within the base sealing assembly, a swing arm assembly operatively connected to the motor output shaft of the DC motor, and a dynamic waterproof structure disposed between the base sealing assembly and the swing arm assembly. The working end of the motor output shaft is inclined; when the output shaft rotates, the swing arm reciprocates through the transmission action of a limiting post, thereby driving the fin-like surface to generate propulsion. Simultaneously, this invention provides a simple method for manufacturing a waterproof membrane, enabling rapid fabrication of the membrane required for the dynamic waterproof structure. This invention, employing a modular design, an efficient propulsion scheme, and a simple and flexible waterproofing solution, effectively overcomes the limitations of traditional underwater biomimetic oscillating fins, which suffer from complex assembly, limited waterproofing solutions, and high costs. It is of great significance for promoting the development of underwater propulsion technology.

This invention belongs to the field of time measurement technology and discloses a resource-saving short-chain time-to-digital converter and its conversion method. It utilizes a delay unit and conversion circuit to build a local oscillator, which flips the output state at fixed time intervals during a continuous high-level input signal. The time at which the local oscillator causes the level to flip is known. The time of the last flip is obtained using TDL and TDC, and the start and last flip times are obtained by recording the number of flips of the local oscillator. The resource-saving short-chain time-to-digital converter provided by this invention has good linearity, completely avoiding nonlinearity problems caused by inconsistent line lengths introduced across multiple resource blocks. The resource-saving short-chain time-to-digital converter has a simple and flexible structure, low resource consumption, and high utilization rate. It has good robustness and can be directly ported between different channels or even devices, and can correct temperature-induced drift online.

The utility model discloses a kind of pole tear protective film devices, it relates to lithium battery manufacturing and automation equipment technical field. Including fixed frame, servo motor, waste recovery module, sucking pole module and pole tear film positioning module, fixed frame bottom is provided with waste recovery module, waste recovery module upper side is provided with servo motor, waste recovery module upper side is sequentially provided with pole tear film positioning module, sucking pole module. The utility model structure design is reasonable, tear film effect is stable by accurate positioning, and the waste recovery design of convenient and reasonable structure layout makes it can efficiently complete pole tear film task.

The utility model provides a goods taking mechanism with a caching function and a selling cabinet, and the goods taking mechanism comprises a fixed goods storage part which is provided with a first accommodation space; the movable storage piece is provided with a second accommodating space; when the movable goods storage piece is located at the first position, the movable goods storage piece is contained in the first containing space, and the second containing space communicates with a goods taking opening of the selling cabinet. When the movable goods storage part is located at the second position, the movable goods storage part is located below the fixed goods storage part, and the first containing space communicates with the goods taking opening; the limiting piece can stretch out and draw back transversely, the limiting piece which stretches out is used for limiting the movable goods storage piece located at the first position to the first position, and when the limiting piece retracts, the movable goods storage piece located at the first position moves to the second position under the action of gravity; and the detection piece is configured to trigger the limiting piece to retract after detecting that the storage duration of the goods in the movable goods storage piece at the first position exceeds the preset duration. The problem that the selling cabinet stops running due to goods retention is solved, and the cost is reduced.

The utility model discloses a kind of paper skin conveying stack position of lifting and rotating, belong to paper product packaging and logistics conveying technical field.The device includes rack, lifting frame, rotating frame, conveying mechanism and drive system.Lifting frame is movably arranged on rack;Rotating frame is rotatably arranged on lifting frame;Conveying mechanism is installed on rotating frame, for carrying and conveying paper skin;Drive system is used to drive lifting frame lifting and rotating frame rotation. Among them, drive system includes the first linear cylinder for driving rotating frame 90 degrees horizontal rotation, and the second linear cylinder for driving lifting frame vertical lifting;Conveying mechanism includes chain conveyor and the conveying motor of driving its forward and reverse operation.The utility model highly integrates conveying, lifting, rotating function, compact structure, solve the problem that existing equipment function is single, layout is long, with the advantages of running smoothly, high efficiency, strong adaptability.

This application discloses a machine tool structure with a combined machining head. The application includes: a first base and a second base, the first base having a working area for placing the workpiece to be processed; a column, on which a first X-axis linear module is mounted; a first group of electrical discharge machining (EDM) heads, comprising at least four heads mounted on the first base and respectively connected to the first X-axis linear module, each of the four heads having an independent Y-axis linear module and a Z-axis linear module; and a second group of EDM heads, comprising at least one head mounted on the first base, the second base having a second X-axis linear module, the at least one head connected to the second X-axis linear module, the at least one head having an independent Y-axis linear module and a Z-axis linear module, and all four heads connected to an EDM power supply.

The utility model discloses a LCD projection structure with aspheric reflector, which comprises an LCD screen, a Fresnel lens, a projection lens and an aspheric reflector. The LCD screen is arranged on the front side of the Fresnel lens, the projection lens is arranged on the back side of the Fresnel lens, and the aspheric reflector is arranged between the Fresnel lens and the projection lens or on the back side of the projection lens. The aspheric reflector is arranged between the Fresnel lens and the projection lens or on the back side of the projection lens. The structure design utilizes the reflection characteristics of the aspheric reflector to change the propagation path of light, provides sufficient optimization freedom for the projection lens, and makes the projection lens not need to spend energy to deal with the optical correction problem. Therefore, all optimization resources can be concentrated on the improvement of picture quality and depth of field, so as to improve the quality of the projection picture.

The utility model discloses a new energy box transformer substation low-voltage cabinet, which is characterized in that a frame circuit breaker is arranged in the upper half part of a cabinet body, the upper opening of the frame circuit breaker is connected with a low-voltage wire inlet copper bar extending from front to back, and the lower opening of the frame circuit breaker is connected with a low-voltage wire outlet copper bar extending from top to bottom; the lower end of the low-voltage outgoing line copper bar is connected with a low-voltage bus copper bar which is transversely fixed between the left side wall and the right side wall of the cabinet body in an insulating mode, a maintenance compartment is arranged outside the right side wall of the cabinet body, and a miniature circuit breaker, a relay and a wiring terminal are installed in the maintenance compartment. According to the utility model, the low-voltage power distribution device is transferred into the maintenance compartment on the right side of the low-voltage cabinet body, so that the risk of electric shock caused by operation personnel entering the cabinet body can be effectively avoided, the problem of inconvenient operation caused by limited space of the cabinet body can be effectively solved, and the low-voltage cabinet has the advantages of modularization, integration and convenience.

The utility model discloses a single motor electric drive axle structure to overcome the deficiency of the whole axle weight of existing electric drive axle, low space utilization rate. Including drive motor, have the first level driving gear, the first level driven gear, the first level output shaft, the second level driving gear through input shaft connection in proper order, be provided with three gear shift key wheel of three gear shift slide sleeve and three gear shift gear on the first level output shaft. The second level driven gear of setting up with the second level driving gear is engaged and the first gear shift key wheel of connecting one, two gear shift slide sleeve is arranged on left hollow shaft, and the sun gear is set up two gear shift gear and ring gear on right hollow shaft, and the sun gear is connected in proper order planetary gear, gear ring, and the differential is connected through planetary gear carrier, and the fourth level driving gear and the third level driven gear of engaging with two gear shift gear are connected on the first gear intermediate shaft, and the first gear is engaged in the hollow sleeve on left hollow shaft. The scheme has obvious advantage in cost control, weight optimization, space utilization, control complexity.

The application relates to a chip packaging structure, which comprises a first carrier substrate, a second carrier substrate and a chip assembly. The first carrier substrate is provided with a first mounting area and a second mounting area which are arranged at intervals along a first direction, and the second carrier substrate is provided with a third mounting area which is arranged at intervals with the first mounting area along a second direction. The chip assembly comprises a driving chip arranged on the second mounting area, a first power chip arranged on the first mounting area and a second power chip arranged on the third mounting area. The first direction is the extension direction of the center line of the first power chip and the driving chip, the second direction is the extension direction of the center line of the first power chip and the second power chip, and the angle between the two directions is less than 90 DEG. The relative position and the angle of the mounting areas on the carrier substrate are optimized, so that a more compact chip layout is realized, the packaging volume is effectively reduced, and the heat dissipation performance and the packaging reliability are improved.