To solve problems in a case of fastening and fixing an electric insulation member for preventing the electric terminal of an electric compressor from an electric short accident with a bolt by a nut, wherein failure is caused due to shortage of mechanical strength of the electric insulation member for fastening, and loosening and dropping of members are caused by repetition of operation and stopping of the electric compressor after fastening.
A hollow columnar part 2 for penetratingly inserting a bolt 11 into the electric insulation member 1 is arranged from a bottom face of a bottomed cylinder shape to a casing side. When the nut 6 is not fastened, a slight clearance 4 exists between a tip end 4 of the hollow columnar part 2 and the casing facing. The tip end 4 of the hollow columnar part adheres to the casing closely by fastening the nut 6. Thus, mechanical strength is improved and a nut loosening prevention effect can be provided.
Daisuke Nagano
Kentaro Fujii
Next Patent: VEHICLE OPERATION SYSTEM