Electric compressor with integral inverter
First Claim
Patent Images
1. An electric compressor comprising:
- a compressor housing comprising a receiving space;
a motor;
an integral inverter, incorporated with the motor and provided in said receiving space surrounded by the compressor housing with a motor drive circuit that comprises said integral inverter;
at least some electric parts comprising said motor drive circuit, a capacitor, and said integral inverter are covered by a resin charged into said receiving space, anda plurality of preformed resin parts occupy a part of a region, which is in said receiving space and into which said resin is charged; and
said plurality of preformed resin parts are formed of a material different from said charged resin and said at least some electric parts;
wherein each preformed resin part of said plurality of preformed resin parts has a shape complementary to at least one electric part in order to be mounted at a predetermined site in said receiving space, andwherein each of said plurality of preformed resin parts is located between said at least one electric part and said charged resin to hold said at least some electric parts, andwherein said material different from said charged resin is a material the density or bulk density of which is less than that of said charged resin.
5 Assignments
0 Petitions
Accused Products
Abstract
An electric compressor provided with an integral inverter, incorporated with a motor and provided in a receiving space surrounded by a compressor housing with a motor drive circuit that includes the inverter. At least some of electric parts including the motor drive circuit are covered by a resin charged into the receiving space, and a part of a region which is in the receiving space and into which the resin can be charged is filled with a light-weight material different from the charged resin. In the structure of the resin covering section for such a motor drive circuit, the amount of resin charged is significantly reduced, and the entire compressor is reduced in weight and cost.
12 Citations
9 Claims
-
1. An electric compressor comprising:
-
a compressor housing comprising a receiving space; a motor; an integral inverter, incorporated with the motor and provided in said receiving space surrounded by the compressor housing with a motor drive circuit that comprises said integral inverter; at least some electric parts comprising said motor drive circuit, a capacitor, and said integral inverter are covered by a resin charged into said receiving space, and a plurality of preformed resin parts occupy a part of a region, which is in said receiving space and into which said resin is charged; and said plurality of preformed resin parts are formed of a material different from said charged resin and said at least some electric parts; wherein each preformed resin part of said plurality of preformed resin parts has a shape complementary to at least one electric part in order to be mounted at a predetermined site in said receiving space, and wherein each of said plurality of preformed resin parts is located between said at least one electric part and said charged resin to hold said at least some electric parts, and wherein said material different from said charged resin is a material the density or bulk density of which is less than that of said charged resin. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. A method for manufacturing an electric compressor installing a motor, an integral inverter, and a motor drive circuit in a receiving space provided in a compressor housing adjacent to a motor housing portion;
-
forming a charging space between at least some electric parts of said motor drive circuit and a material structure having a shape complementary to said at least some electric parts; charging a liquid resin material into at least said charging space of said receiving space, wherein said material structure is formed from a material different from said charged liquid resin and said different material is a material the density or bulk density of which is less than that of said charged liquid resin; and coating said at least some electric parts comprising said motor drive circuit are coated with said liquid resin charged into at least said charging space of said receiving space, wherein said material structure is formed in a shape to hold said at least some electric parts prior to said resin charging. - View Dependent Claims (9)
-
Specification