Patent ID: 8905726
Filing Date: 2014-12-09
Classification: F04B,F04D,H01M,Y02E

Abstract:
1. A fixation structure for a compressor that has an electric motor and a compression mechanism provided adjacently to the electric motor and driven by the electric motor, wherein: a motor housing for the electric motor and a compression mechanism housing for the compression mechanism are formed separately from each other, a fixation part, which is between the compressor and an object to which the compressor is to be attached, wherein the fixation part is provided on an outer surface of the compression mechanism housing; the object is an end plate of a fuel cell which is formed of a plurality of stacked cells that generate electric power through an electrochemical reaction between fuel gas and oxidant gas, the end plate of the fuel cell being disposed at an end in the cell-stacking direction, and the compressor is a fuel-off gas circulation pump for returning fuel-off gas discharged from the fuel cell to the fuel cell; and the compression mechanism housing has a plurality of the fixation parts, and a contact area enlargement part, which is to be in surface contact with the end plate of the fuel cell, is provided between fixation surfaces of the fixation parts to be in surface contact with the end plate of the fuel cell, wherein the plurality of the fixation parts are disposed on a first side surface of the end plate, and the fuel cell is disposed on a second side surface of the end plate opposite to the first side surface, such that the end plate is positioned between, and is directly attached to the plurality of the fixation parts and the fuel cell, and wherein heat of the fuel cell is transferred from the end plate of the fuel cell to the compression mechanism housing.