11results about How to "High failure rate" patented technology

This utility model belongs to the field of fuel cell accessories and discloses a quick-connect fuel cell power distribution box. The power distribution box consists of a top cover and a base; the base has a support surface for placing power distribution and control components, and a fixing pad is connected to the bottom of the base; a sealing ring is provided at the top edge of the base; the top cover is placed on the base. This utility model fuel cell power distribution box has low cost, small size, low failure rate, and high waterproof rating. The internal structure of this power distribution box fixes relays, fuses, and wiring harness terminals without the need for connectors, which effectively saves costs. Since there are no control chips and circuit boards inside, internal space is saved and the failure rate is reduced. This power distribution box has added waterproof plugs and sealing plugs, and the waterproof rating reaches IP67.

The high-protection outer rotor axial flow fan comprises an outer rotor motor and a wind wheel, the outer rotor motor comprises a base, an outer rotor assembly, a rotating shaft and a stator assembly, and the base comprises a bottom plate and a sleeve protruding upwards from the middle of the top face of the bottom plate. The shaft support is installed on the two bearings, the top end of the shaft support is connected with the outer rotor assembly, the stator assembly is arranged outside the sleeve in a sleeving mode, an annular boss is arranged on the edge of the bottom plate, and a labyrinth sealing structure is formed by the annular boss and the end of the outer rotor assembly. The wind wheel comprises blades and a hub, the blades are installed on the outer side of the hub, and the hub is installed outside the outer rotor assembly through an installation support. The base is sleeved with an outer water retaining ring, an inner water retaining ring is installed on the installation support, and the outer water retaining ring and the inner water retaining ring are matched to form a water retaining device on the periphery of the labyrinth sealing structure. The waterproof and dustproof levels of the axial flow fan are greatly improved, the reliability is high, and the failure rate is low.

This invention discloses a dual closed-loop control system and method for rubber mixing pressure in a rubber mixing mill, relating to the field of automation control technology. The system sets a target pressure, monitors the feedback value of the external pressure closed loop, acquires the external pressure closed loop feedback value, calculates a first input value based on the target pressure and the external pressure closed loop feedback value, obtains a first output value based on the deviation between the first input value and a preset first input value threshold, uses the first output result as the input value of the internal pressure closed loop, collects the detected value of the pump inlet pressure, calculates a second input value based on the first output result and the detected pump inlet pressure, adjusts the control pressure of the pump inlet based on the deviation between the second input value and a preset second input value threshold, and controls the speed of the servo motor through a servo controller to stabilize the pump inlet side pressure.

The utility model discloses a kind of mechanical dryer combination structure for new energy vehicle, including the combination of mechanical dryer and air pressure switch;Mechanical dryer includes control interface;Air pressure switch is arranged at the control interface of mechanical dryer;Wherein air pressure switch can be fed back air pressure data information to VCU by control interface, and then VCU controls the start or stop of the electric air compressor of whole car according to air pressure data information.The utility model discloses the mechanical dryer combination structure for new energy vehicle, can be combined by air pressure switch and mechanical dryer, realize the effective control of VCU to the start-stop of electric air compressor, effectively solve the problem that electric air compressor is always in continuous working state in prior art.

The application discloses a kind of diagnosis method and system of vehicle-mounted generator fuse, and the fuse is connected between generator and battery, one end of the fuse connection generator is point A, and one end of the connection battery is point B, when vehicle is not started, the voltage of point A and point B is collected, whether the fuse is suspected abnormal according to the voltage of point A and point B is judged;If it is judged that the fuse is suspected abnormal, after the vehicle is started, the voltage of point A and point B is collected, whether the fuse is open circuit according to the voltage of point A and point B is judged using first method;If it is judged that the fuse is normal, after the vehicle is started, the voltage of point A and point B is collected, whether the fuse is open circuit according to the voltage of point A and point B is judged using second method.The application is staged to the characteristic judgment when vehicle is running, whether the fuse of generator is open circuit can be accurately judged, avoid all misjudgment and missing judgment situation.

This utility model relates to the field of battery technology and discloses a sealing device for sealing the electrolyte inlets of battery cells. It includes a feeding body, sealing films, and a film-applying mechanism. The feeding body has an adhesive surface; multiple sealing films are adhered to the adhesive surface. The film-applying mechanism includes a driving component, a picking component, and a peeling component. The picking component is connected to the driving component, and the peeling component is disposed on the picking component. The driving component is used to drive the picking component to grasp the feeding body until the multiple sealing films on the feeding body are applied one by one to the electrolyte inlets of multiple battery cells, and to drive the peeling component to peel the feeding body off the multiple sealing films. This utility model integrates multiple sealing films onto the feeding body, facilitating the picking of sealing films. Furthermore, the integrated arrangement of multiple sealing films on the feeding body allows for batch sealing of the electrolyte inlets of multiple battery cells, improving sealing efficiency.

This invention discloses a vacuum die-casting system, a high-vacuum die-casting method, and their applications. The vacuum die-casting system includes a horizontal die-casting machine, a die-casting mold, a vacuum pump, a vacuum tank, a filter, a hydraulic vacuum valve, a vacuum valve controller, a displacement acquisition device, and a displacement grating. The high-vacuum die-casting method sequentially includes melting aluminum alloy liquid, evacuating the vacuum tank, preheating the mold, spraying a release agent, closing and locking the mold, low-speed injection, evacuating the mold cavity, high-speed injection, pressure holding and cooling, mold opening, and part removal. This invention, through scientific design of the vacuum die-casting system and optimization of the vacuum die-casting process, shortens the response time of the hydraulic vacuum valve to 35ms and increases the vacuum degree of the mold cavity to 50mbar, achieving high-vacuum die-casting molding, improving the density, mechanical properties, and dimensional accuracy of the die-cast parts, and reducing the equipment failure rate. This invention also discloses the application of the described vacuum die-casting system and method in large and complex aluminum alloy die-cast parts for new energy vehicles.

The utility model provides a dry-mixed mortar mixer, which belongs to the technical field of material mixing and comprises a main mixing mechanism, the main mixing mechanism comprises a hollow main shaft rotatably assembled in a mixing box, the hollow main shaft is detachably connected with a plurality of hollow mixing arms, and the hollow main shaft is provided with threading holes corresponding to the hollow mixing arms; by arranging the main stirring mechanism and the auxiliary stirring mechanism, the stirring blades can actively rotate, so that the stirring blades can rotate for multiple circles when the main stirring mechanism rotates for one circle, and mixed materials can be stirred and mixed for multiple times. The stirring device is simple in structure and convenient to operate, so that the mixing and stirring times required by uniform mixing of materials are realized in a shorter time, the mixing and stirring efficiency is improved, the stirring time is greatly shortened, and the stirring efficiency of the stirrer is greatly improved.

The invention relates to a new energy automobile IGBT driving circuit and a battery pack heating device, and relates to the technical field of vehicle-mounted power supply control, the new energy automobile IGBT driving circuit comprises a power supply unit, an under-voltage protection unit and an IGBT driving unit, the power supply unit is connected with a battery pack of a new energy automobile, the under-voltage protection unit is connected with the power supply unit, and the IGBT driving unit is connected with the under-voltage protection unit. The IGBT driving unit comprises a photoelectric coupling module, a totem pole driving module and an IGBT output module, the photoelectric coupling module is connected with an external driving control signal source and the under-voltage protection unit, the totem pole driving module is connected with the photoelectric coupling module and the power supply unit, and the IGBT output module is connected with the totem pole driving module and the load element. And the load element is connected with the battery pack, so that the stability of the IGBT driving circuit and the reliability of an under-voltage protection function can be improved. The new energy automobile battery pack heating device provided by the invention uses the new energy automobile IGBT driving circuit provided by the invention.

The application provides a digital management and control platform and method for service areas, belonging to the technical field of data management, specifically comprising: dividing the charging piles into different combinations by using the models of the charging piles, determining the reliable combinations in the combinations based on the distribution data of the charging piles in the reliable service areas, determining the analysis and processing strategy of the operation data of the charging piles in the service areas based on the distribution data of the charging piles in the reliable combinations in the service areas and the distribution data of the charging piles in the reliable service areas in the same combination, determining the suspected abnormal data of the charging piles in the combinations in the different service areas based on the analysis and processing strategy, and determining the intelligent management and control method of the charging piles based on the suspected abnormal data and the reliable service areas in the service areas, thereby improving the reliability of the operation and maintenance processing of the charging piles.

The utility model discloses a kind of mould with lamp hole waterproof installation component, comprising: upper die group, lower die group, workpiece placed in the middle part of the lower die group, the workpiece side is provided with several lamp holes, the lower die group upper side is vertically provided with positioning baffle, the upper die group below is provided with vertical positioning assembly, lateral glue injection assembly;The workpiece is placed on the lower die group upper side, and the lamp hole outer side is attached to the positioning baffle, the utility model is forced workpiece lamp hole outer side rigid attachment by the positioning baffle vertically arranged in lower die group, eliminate the misplacement error caused by artificial placement, ensure that lamp hole and glue injection path are absolutely aligned;Through the synergistic effect of positioning baffle and lateral glue injection, ensure that sealing sheet and lamp hole side wall are combined with zero gap, waterproof grade is stably reached IP68;Process one-step forming, traditional secondary glue supplement link is saved, failure rate is reduced from original 15% or more to 5% or less, good product rate is improved to 98% or more, while shortening cycle 30%.