Kabushiki Kaisha Toyota Jidoshokki

Kabushiki Kaisha Toyota Chuo Kenkyusho

Noritaka Nishimori

Takayuki Kato

Toshiyuki Kobayashi

Ryuji Watanabe

Suehiro Fukazawa

Toshiyuki Miyano

Takahiro Moroi

Takahiro Hoshida

Masakazu Obayashi

Naofumi Kimura

Yoshio Kimoto

Yasuhiro Kondoh

Etsuko Hori

Takahiro Kato

Yasuaki Nakano

Toshiharu Awa

An electric compressor includes a compression member configured to compress fluid, an electric motor configured to drive the compression member, an inverter configured to drive the electric motor, a housing accommodating the compression member, the electric motor, and the inverter, and a soundproof cover covering the housing. The housing includes a plurality of housing elements. The soundproof cover has a facing portion facing the housing. The facing portion has a groove that surrounds a boundary between two of the housing elements that are adjacent to each other and is distant from the boundary.

Electric compressor

An electric compressor includes a compression part configured to compress fluid, an electric motor configured to drive the compression part, a housing accommodating the compression part and the electric motor, a soundproof cover covering the housing, and a nameplate attached to the housing and including a predetermined information. The housing includes a protrusion that is a part of the housing and protrudes out of the soundproof cover through a hole formed in the soundproof cover. The nameplate is provided on the protrusion.

A vehicle electric fluid machine includes: a housing provided with a mounting leg having an insertion hole; a fastener having a shaft portion inserted into the insertion hole and a head portion at one end of the shaft portion, the fastener fastening the other end of the shaft portion to a mounting object; a sleeve disposed between the mounting leg and the shaft portion, elastic vibration dampers disposed on opposite sides of the mounting leg in its axial direction, each of the elastic vibration dampers having a cylindrical portion disposed between an inner circumferential surface of the mounting leg and an outer circumferential surface of the sleeve, and a collar extending from one of opposite ends of the cylindrical portion in a radial outward direction of the cylindrical portion; and an annular plate through which the fastening force is applied to the mounting leg through the collar.

Vehicle electric fluid machine

An electric compressor includes a compression member compressing fluid drawn from a suction chamber and discharging the compressed fluid to a discharge chamber, an electric motor driving the compression member, an inverter driving the electric motor, a housing in which the suction chamber and the discharge chamber are formed and that accommodates the compression member, the electric motor, and the inverter, the housing including an inverter accommodation portion, a soundproof cover covering an outer surface of the housing, and a nameplate including predetermined information. The nameplate is provided on at least one of a first outer surface of the outer surface corresponding to the inverter accommodation portion and a second outer surface of the outer surface corresponding to the discharge portion. The soundproof cover has a window through the nameplate is viewed and which is formed in a part of the soundproof cover corresponding to the nameplate.

An electric compressor includes a compression portion, an electric motor, an inverter, a housing, a support bracket, a vibration insulator, and a soundproofing cover. The compression portion is configured to compress a fluid. The electric motor is configured to drive the compression portion. The inverter is configured to drive the electric motor. The housing includes an outer peripheral surface that has a cylindrical shape and accommodates the compression portion, the electric motor, and the inverter. The support bracket is fastened to the housing and supports the housing to an object to which the electric compressor is mounted. The vibration insulator is interposed between the support bracket and the object. The soundproofing cover is made of an elastically deformable sound absorbing material and covers the housing and the support bracket.

Sound absorbing cover and vibration insulating support for an electric compressor

An electric compressor includes a compression part, an electric motor, an inverter, a housing that has an outer circumferential surface, and a soundproof cover that covers the outer circumferential surface of the housing. The soundproof cover has a covering portion that covers the outer circumferential surface of the housing and an overlapping portion that overlaps the covering portion in a radial direction of the housing. The overlapping portion and the covering portion each have an insertion hole. The housing is provided with a shaft that extends from the outer circumferential surface of the housing and that is inserted into the insertion hole, and a pressing part that presses a part of the overlapping portion around the insertion hole toward the housing so as to elastically deform the overlapping portion and the covering portion. The soundproof cover is attached to the housing with the shaft and the pressing part.

A motor-driven compressor, a housing structure for a motor-driven compressor, and a method of installing a soundproof cover on a motor-driven compressor are provided. A soundproof cover includes layers that include a first layer and a second layer. The first layer is placed over a housing, and the second layer is placed over the first layer. Each of the layers includes a first segment and a second segment. A second selection layer is located inward of a first selection layer. A boundary in the second selection layer is located above the boundary of the first selection layer.

Motor-driven compressor, housing structure for motor-driven compressor, and method of installing soundproof cover on motor-driven compressor

A vehicle electric fluid machine includes: a housing provided with a mounting leg; a fastener having a shaft portion and a head portion at one end of the shaft portion, the fastener fastening the other end of the shaft portion to a mounting object; a sleeve disposed between the mounting leg and the shaft portion; elastic vibration dampers each having a cylindrical portion and a collar extending from one of opposite ends of the cylindrical portion in its radial outward direction; and an annular plate through which a fastening force is applied to the mounting leg. The annular plate has an elongated protrusion protruding toward the mounting leg, the elongated protrusion spaced from the collar with a predetermined clearance formed radially outside the collar. A deformation limit of the collar is defined by the elongated protrusion being in contact with the collar.

A motor-driven compressor includes a compression unit, an electric motor, a drive circuit, a first housing, a second housing, and a soundproofing material. The second housing covers at least part of an outer surface of the first housing. The soundproofing material is arranged between the outer surface of the first housing and an area that includes an inner surface and a wall surface of the second housing. The soundproofing material has sound insulating properties. The soundproofing material includes a sound absorbing layer and a sound insulating layer. A first region and a second region are formed between the outer surface of the first housing and the area that includes the inner surface and the wall surface of the second housing. An air layer is formed in the second region.

Motor-driven compressor

The present invention provides a variable displacement swash plate type compressor that reduces wear of cylinder bores and the amount of blow-by gas. Each piston of the compressor has a piston main body, which has a distal portion located at an end corresponding to the compression chamber. A tapering portion and an arcuate portion are formed in the distal portion. The arcuate portion is continuous with an end of the tapering portion that is closer to the compression chamber. The tapering portion and the arcuate portion each have a diameter that increases toward the skirt. The tapering portion has a tapering angle that is in a range from 0.45 degrees to 1.5 degrees. The distance between the distal end of the piston main body and a starting point of the tapering portion on an end closer to the skirt is set in a range from 1.5 mm to 5.0 mm.

Growing community of inventors

Kariya, Japan

Noritaka Nishimori