Electrically-driven compressor for vehicle

• Main Authors: TSUKAHARA MASATO, KASHO SHIGEHIRO, KOIDE TATSUYA, ONARA KAZUHIRO
• Format: Patent
• Language: Chinese; English
• Published: 25.09.2018
• Subjects: BLASTING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MEANS FOR DAMPING VIBRATION; MECHANICAL ENGINEERING; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTMACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENTPUMPS; SHOCK-ABSORBERS; SPRINGS; THERMAL INSULATION IN GENERAL; WEAPONS

An electrically-driven compressor (100) is installed in an engine. Refrigerant is compressed with rotation of a rotating shaft (150) in a compression unit (160). An electric motor (170) is coupled tothe rotating shaft (150) and drives the compression unit (160) through the rotating shaft (150). A housing (100h) accommodates the compression unit (160), the electric motor (170), and the motor drivecircuit (141) aligned in the listed order in the axial direction of the rotating shaft (150). The housing (100h) is internally provided with the discharge chamber (30) through which the refrigerant compressed by the compression unit (160) is discharged. The weight is attached to the housing (100h) and disposed in the discharge chamber (30) in a manner that a resonance frequency of the electrically-driven compressor (100) is shifted relative to a resonance frequency of the engine, the weight including a material having a specific gravity greater than a specific gravity of a constituent material of the housing (100h). 种