7results about How to "Meet structural strength" patented technology

The invention discloses an integrated miniature fan and an assembling method. The assembling method comprises the following steps: firstly, processing a PCB (Printed Circuit Board) assembly by using SMT (Surface Mount Technology), and reserving a bonding pad; a middle tube is inserted from a through hole in the middle of the PCB assembly, and the circumference of the inner side of the joint of the PCB assembly and the middle tube is bonded and fixed through circle drawing dispensing glue; the transmission assembly is adaptively installed on the middle pipe to be fixed, the periphery of the transmission assembly is wound and wrapped with the covered wire, and then the covered wire is welded to the bonding pad through tin soldering; the fan blade group and the output end of the transmission assembly are fixedly mounted, so that the fan blade group can smoothly rotate in the shell without touching the inner wall of the shell; and glue is injected along a glue groove in the bottom of the shell, the positioning columns are pressed into the positioning holes in the assembled PCB assembly, and assembling of the miniature fan is completed. According to the miniature fan, the hollow space in the shell is enlarged, airflow is not blocked when the fan blade set rotates, due to the fact that a bottom plate is omitted, the gap between the PCB assembly and the shell is enlarged, the risk of the assembly technology is synchronously reduced, more internal space of the miniature fan is saved, and meanwhile the performance of the miniature fan can be improved.

The present invention discloses a U-shaped shell and tube type high-efficiency fuel and lubricating oil radiator, including an inserted head, a tube sheet, a tube bundle and a sheet metal integral spiral baffle. A cross-shaped partition is arranged on one end face of the inserted head, a cross-shaped slot is arranged on one end face of the tube sheet, and the tube sheet is plugged and matched with the cross-shaped partition of the inserted head through the cross-shaped slot and welded to form four partitions, each partition corresponds to a baffle chamber of a tube pass, the tube bundle is a U-shaped tube, and the U-shaped tube has a plum blossom groove pressed inside or a spoiler groove processed on the surface, the two ends of the tube bundle are respectively plugged into the tube sheet, and the two ends of the tube bundle are respectively located in different partitions; the spiral baffle is a sheet metal integrally formed structure and forms a shell pass with the shell assembly, the sheet metal integral spiral baffle has an inclination angle and a turning angle with the tube bundle flow direction, and the tube bundle is plugged with the spiral baffle. The fuel and lubricating oil radiator of the present invention meets the design requirements of light weight, compact structure, not easy to deform under high temperature difference of fuel oil, high heat transfer efficiency and good reliability.

The utility model discloses a double -deck sink frame. It includes two assembly support frames, first first assembly layer frame and second splicing layer frame, two assembly support frames are symmetrically set up to left and right, and every assembly support frame includes plastic base and two metal support bars, and the plastic base is long strip shape along the front -back direction, and the middle part and rear part of plastic base are equipped with first installation groove respectively, and the bottom of two metal support bars is connected with corresponding first installation groove respectively, and the top of metal support bar passes through second splicing layer frame, and is connected through locking screw between metal support bar and second splicing layer frame, and the top of metal support bar and first first assembly layer frame bottom are connected, and first first assembly layer frame is placed on the top of second splicing layer frame. The double -deck sink frame of the utility model is assembled and is formed, can reduce the packing volume, and through the collocation of metal parts and plastic parts, reduces the weight, reduces the cost while still maintaining the structure strength that satisfies the use requirement.

The application discloses a new energy automobile framework aluminum alloy material and a preparation method thereof. The new energy automobile framework aluminum alloy material comprises the following components in mass percentage: Mn 0.2-0.5%, Si 0.2-2.0%, Fe 0.2-0.35%, Zn 1.5-2.5%, Cu 0.5-1.5%, Mg 2.0-4.0%, B 0.05-0.1%, Ti 0.05-0.15%, Y 0.1-0.3%, and the balance of Al and inevitable impurities. The new energy automobile framework aluminum alloy material has high strength, good die-casting performance, excellent wear resistance and corrosion resistance, and the new energy automobile framework prepared from the aluminum alloy material can meet the structural strength of a vehicle body.

The utility model relates to a floating type wind power foundation and offshore wind power generation equipment, a plurality of stand columns are connected together through connecting pieces to form a main body of the floating type wind power foundation, a first connecting piece and a second connecting piece are respectively used for connecting adjacent stand columns at a first connecting position and a second connecting position on the stand columns, the first stand column and the second stand column are connected through the first inter-column connecting rod, the first stand column and the third stand column are connected through the second inter-column connecting rod, and the second stand column and the third stand column are connected through the third inter-column connecting rod. By means of the structural connection mode, connection parts among the first stand column, the second stand column and the third stand column are simpler than connection parts in the prior art, the steel consumption is reduced, and the number of connection points is reduced. In addition, through reasonable arrangement, effective transmission of loads is achieved, and the structural strength required by yield analysis and buckling analysis of the offshore floating type device can be kept and met.

The utility model discloses a novel Z type purlin section reinforcing device, including main beam, Z type purlin, reinforcing part and fastener, Z type purlin is fixed on the main beam, and reinforcing part is detachably connected with connecting piece through fastener, and reinforcing part has the structure that matches with the section of Z type purlin, is used for being combined with Z type purlin and forms reinforcing. It is suitable for improving the bearing capacity and overall stability of Z type purlin structure, satisfies the demand of purlin enhancement in building roof reconstruction and new project. The device is simple in design, strong in adaptability, can reduce material use, optimizes construction process, significantly improves construction efficiency and economic benefits, and provides an efficient, economical reinforcing solution for steel structure building.

This disclosure relates to a hood assembly and a vehicle. The hood assembly includes a hood body and at least one lifting mechanism. At least one connection point is provided on the bottom surface of the middle portion of the hood body. The lifting mechanism is located below the hood body and corresponds to the connection point. The lifting mechanism is configured to rise and fall under preset conditions to contact or separate from the corresponding connection point. This hood assembly can meet the pedestrian protection requirements in the event of a collision, and also meet the rigidity requirements of the hood body in scenarios where pedestrian protection is not required. Furthermore, it eliminates the need for pop-up fulcrums or hinges, thus minimizing maintenance costs.