3results about How to "Rigid" patented technology

The utility model relates to the technical field of vehicle engineering, in particular to a doorsill beam structure and a vehicle body structure. The doorsill beam structure comprises a cross beam formed by rolling a rolling plate, and the cross beam is provided with at least two energy absorption cavities and isolation plates located between the adjacent energy absorption cavities; the first end of the rolling plate is bent to form a first guide edge, the first guide edge is located in one of the energy absorption cavities and abuts against the isolation plate, and the second end of the rolling plate is the end, away from the first guide edge, of the isolation plate. The second end is bent towards the energy absorption cavity where the first guide edge is located to form a second guide edge. Therefore, the cross beam formed by winding the roller plate has rigidity and structural stability and is used for supporting a vehicle body structure. When the cross beam is collided, the first guide edge and the second guide edge curl or move towards the corresponding energy absorption cavities, and the threshold beam structure has a better energy absorption effect in cooperation with the energy absorption effect of the energy absorption cavities.

The utility model discloses a composite nanometer heating film which comprises a nanometer heating film body, at least one group of electrodes is arranged on the nanometer heating film body, each group of electrodes at least comprises two electrode strips, the nanometer heating film body is packaged in a mica outer layer, and the mica outer layer is tightly attached to the surface of the nanometer heating film body. According to the utility model, the nanometer heating film body is packaged in the mica outer layer, and the mica outer layer can be coated outside the nanometer heating film body by adopting mica slurry, or mica paper with an attaching layer is attached outside the nanometer heating film body, so that the mica outer layer is attached to the nanometer heating film body, and the thermal conductivity and the insulativity of the nanometer heating film body are ensured.

The utility model belongs to underwater cable technical field discloses a kind of bending-resistant underwater cables, including conductor, insulating layer, sheath layer and protective layer, conductor is formed by multiple copper wire strands multilayer complex twisting, and the complex twisting direction of each layer copper wire strand is same, copper wire strand is formed by multiple tinned copper wire bundle twisting, insulating layer is coated in the outer periphery of conductor, sheath layer is coated in the outer periphery of insulating layer, protective layer is coated in the outer periphery of sheath layer, the material of protective layer is polyether polyurethane elastomer, shore hardness is (A80-D70).The bending-resistant underwater cable provided by the utility model has pressure resistance and flexibility simultaneously, when bending laying, it can be quickly laid, reduce the degree of difficulty of laying, simultaneously, it can effectively reduce the degree of stress concentration at bending, the risk of fracture at bending is low, and it can stably transmit electric energy.