11results about How to "Reduce the total mass" patented technology

The embodiment of the utility model discloses a battery device, an energy storage device, an energy storage system and a charging network. The battery device comprises a plurality of battery cells, wherein a pressure relief mechanism is arranged on the wall part of a shell of each battery cell; the discharge pipeline comprises a gas collecting pipe, the gas collecting pipe comprises a first area and a plurality of second areas, the first area and the second areas are oppositely arranged along the thickness direction of the wall part, the second areas are second through holes or weak areas, and the plurality of second areas are in one-to-one correspondence with the pressure relief mechanisms of the plurality of single batteries; the plurality of pressure relief mechanisms are arranged in the second area, so that emissions discharged by the plurality of pressure relief mechanisms enter the gas collecting pipe through the second area; and the heat insulation piece covers the first area. According to the battery device, the energy storage device, the energy storage system and the charging network, the reliability and the stability of the battery device can be improved.

The utility model discloses a miniature thermoelectric refrigeration system for a miniature heating assembly, which relates to the technical field of infrared detection equipment and comprises a flat plate type evaporator, a foamy copper heat pipe radiator, a micropump, a liquid storage device, a fan, the miniature heating assembly, a multi-stage thermoelectric refrigerator and a detector vacuum cavity packaging box. The flat plate type evaporator, the foamy copper heat pipe radiator, the liquid storage device and the micropump are sequentially connected in series through a pipeline and are arranged outside the detector vacuum cavity packaging box, and according to the scheme, by optimizing the overall structure and core assembly design of the system, the flat plate evaporator is arranged at the hot end of the multi-stage thermoelectric refrigerating unit to absorb heat; the foamy copper heat pipe radiator is used for heat dissipation, and the micropump is used for assisting the capillary phase change loop to start, so that the heat dissipation effect of the hot end of the refrigerating device is remarkably enhanced, and the size and the weight of the refrigerating system are greatly reduced.

A driveline assembly for a vehicle including at least one primary shaft rotatable about an axis. At least one reducer assembly is coupled with the at least one primary shaft. The reducer assembly includes a sun gear rotatable with the primary shaft. A plurality of planet gears are rotatable about the sun gear. A ring is positioned about the planet gears. A planet carrier is rotatably connected to a center of each of the planet gears. An output shaft is fixed to the planet carrier. A sliding clutch fixes the ring to a ground in a high torque position to provide a gear reduction, and fixes the ring to the planet carrier in a low torque position to provide a 1:1 gear ratio. A method for operating such a driveline assembly is also provided.

A new intelligent dense temperature sensing self-heating battery module structure is proposed, which includes battery cell, welded aluminum row, epoxy resin plate, end baffle, side heat dissipation sealing plate, bottom plate and intelligent temperature sensing heating film. The positive and negative electrodes of the battery cell are arranged alternately in the horizontal direction. The welded aluminum row is connected in series with the positive and negative electrodes of the battery cell by welding. The epoxy resin plate is arranged between the end battery cell and the end baffle. The end baffle is connected with the side heat dissipation sealing plate and the bottom plate through the flange with mounting hole. The side heat dissipation sealing plate is provided with a flange structure and a long strip hollow structure. The end baffle, the side heat dissipation sealing plate and the bottom plate form a detachable sheet metal support. The intelligent temperature sensing heating film is in contact with the bottom plate and the battery cell. The intelligent temperature sensing heating film integrates temperature sensing contacts and control chips to achieve precise temperature control. The structure realizes efficient self-heating and precise temperature control, improves heat dissipation efficiency and structural stability, and is suitable for electric vehicles, energy storage equipment and other fields.

The utility model relates to an unmanned plane technical field, and disclose an unmanned plane flight anti -collision device, including unmanned plane main part, the four around of unmanned plane main part fixed have rotor anti -collision mechanism, the rotor anti -collision mechanism includes rotor support, one end of rotor support is fixed with motor seat, and the bottom of motor seat is fixed with station foot stand. The utility model discloses through the rotor support and rotor seat and outer buffer ring of four around distribution of unmanned plane main part, can form the protection to the four around of rotor blade through rotor seat and the top fixed top outer cover, and rotor seat and top outer cover all adopt the open -work structure, do not affect the normal driving flight of unmanned plane, reduce the quality of self simultaneously, and the elastic extension and buffer sleeve of telescopic link elastic extension and buffer sleeve of cooperation rotor seat four around ring cloth connection form the damping effect when knock, cooperate the buffer protection of four around direction of outer buffer ring, can provide multi -angle multidirectional protection in the flight process, avoid the influence that rotor is received, keep the steady flight process.

The present invention discloses a bionic nerve graft and a preparation method thereof. The bionic nerve graft includes a helical stent, a nanofiber membrane, guide fibers and hBMSC-ECM. A surface of the helical stent is coated with the nanofiber membrane, the guide fibers and the hBMSC-ECM are placed in a tube cavity of the helical stent, and the raw materials of the helical stent, the nanofiber membrane and the guide fibers are all chitosan. The preparation method includes the following steps: preparing the helical stent by a mold pouring method, coating the surface of the helical stent with the nanofiber membrane by an electrostatic spinning method, preparing the guide fibers by a template method, and filling the guide fibers and the hBMSC-ECM in the helical stent with the surface coated with the nanofiber membrane. The method provided by the method is simple and low in cost. The prepared bionic nerve graft ensures sufficient mechanical support, good compliance and guidance, provides a sufficient space for the transmission of nerve regeneration nutrients, provides microenvironment elements for nerve regeneration, and has high biocompatibility and low immunogenicity.

A multi-start carrier power system, the design includes the power system architecture of the main power module, the auxiliary power module and the supercharged delivery module, the reusable carrier power scheme, the unified propellant type used by the main and auxiliary power systems, the simplified carrier power system, the improved reusable maintenance of the carrier power system, the realization of the multi-start function and the start number not limited by the starting device, with the multi-start, multi-reuse ability, while reducing the difficulty of power architecture design, the internal design optimizes the layout space, which simplifies the ignition system, improves the ignition reliability and stability, and the ignition number is not limited.

This invention discloses an MRI passive shimming optimization method based on the PSA-SQP hybrid algorithm, comprising the following steps: (1) Magnetic field mapping to evaluate the uniformity of the magnetic field: the magnetic field non-uniformity at a specific sampling location within the imaging area is evaluated using a magnetic field probe / camera; (2) Establishing an optimization model for passive shimming; (3) Hybrid algorithm optimization of passive shimming: combining the pattern search algorithm PSA with sequential quadratic programming SQP to find the optimal solution for the iron block in the passive shimming system. PSA is run in advance to perform a global search, obtaining elite individuals as initial values ​​for SQP optimization, and then the optimal solution for the iron block in the passive shimming system is found by running SQP. This algorithm can achieve high magnetic field uniformity and also has limitations on the weight of the shimming iron sheet. Importantly, it can achieve a sparse distribution of the shimming iron sheet.

The utility model belongs to heavy -duty truck axle technical field discloses a kind of hub with gear ring structure, including hub body, and hub body is equipped with bearing seat hole one and bearing seat hole two, the inner wall of bearing seat hole one and the inner wall of bearing seat hole two are respectively connected with outer bearing and inner bearing, and hub body is connected with flange plate, and flange plate is equipped with tire bolt hole, and the inner wall sliding connection of tire bolt hole is equipped with connecting bolt, and hub body is equipped with several groups of gear slot, and several groups of gear slot are arranged in annular array.The utility model directly sets up gear slot in hub body and is arranged in annular array, compared with traditional split gear ring, can effectively avoid cumulative error generated due to assembly, ensure the high-precision coaxial degree of gear slot and bearing seat hole, to improve the stability and accuracy of ABS sensor signal;Meanwhile, integrated structure eliminates the risk of gear ring loosening, wear, enhances the overall strength and reliability of hub, reduces maintenance cost.

This utility model relates to the field of mechanical gripper technology, and provides a mechanical gripper structure that adapts to the outer diameter of drill rods and drill collars. It includes a base, arms, a gate mechanism, and a push block. The arms are mounted on both sides of the base, with the ends furthest from the base serving as clamping ends, forming an entrance between them. The gate mechanism is rotatably mounted on the clamping ends of the arms. The two gate mechanisms can rotate to move closer together to block the entrance or move further apart to open the entrance without requiring the arms to open significantly. The push block is slidably mounted on the base, located at the end closest to the base. After sliding, the push block can push the drill rod or drill collar located in the entrance, causing it to abut against the gate mechanism. An enclosing space is formed between the arms, the gate mechanism, and the push block. This technical solution solves the problem in the prior art where the overall size of the mechanical gripper increases significantly with the opening action, occupying additional lateral space.

Portal gantry crane comprising: - Two parallel main girders (11) running side by side on respective sides of a midplane (M), - two legs (20, 21) each positioned in said midplane (M), - two couples of trolleys (40), each couple of trolleys operating on a corresponding girder (11), each trolley carrying a hoist.