2results about How to "Improve design rationality" patented technology

The utility model discloses a kind of electric compressor, air conditioner and vehicle, electric compressor includes: casing, driving component and bearing seat, low-pressure chamber is equipped in casing, casing has the air inlet channel being communicated with low-pressure chamber;Driving component includes motor and crankshaft, motor is located in low-pressure chamber, motor is cooperated with crankshaft to drive crankshaft rotation;Bearing seat is located in the support bottom wall of low-pressure chamber, bearing seat is equipped with the installation cavity for installing first support bearing, first support bearing is sleeved on the end of crankshaft;Wherein, the part of support bottom wall located on the side of bearing seat away from air inlet channel is defined as positioning plane, in the axial direction of crankshaft, at least part of the cross section of air inlet channel is located on the side of positioning plane away from driving component, cross section and the extension plane of positioning plane are set at angle. Thus, the shielding influence of stator to the airflow flowing into low-pressure chamber can be reduced, the suction pressure loss is improved, and the performance of electric compressor is improved.

This invention discloses an 800kV GIS (Gas-Insulated Switchgear) dual-sealing structure with separate main and auxiliary sealing functions, and a life-cycle design method suitable for high-altitude desert environments. The structure includes a GIS equipment shell and a flange. The flange is integrally installed at the connection end of the GIS shell. The flange connection area features a main sealing structure and an auxiliary sealing structure. The main sealing structure is located closer to the GIS shell forming the air chamber, while the auxiliary sealing structure is located closer to the external environment. This invention's dual-sealing structure with separate main and auxiliary sealing functions significantly reduces the risk of SF₆ leakage in the GIS equipment, improves the reliability of the sealing structure in low-pressure environments at high altitudes, delays the aging of sealing materials, and enhances the adaptability of the GIS equipment to windy, sandy, and temperature-differential environments.