Motor-operated compressor

Abstract

The present disclosure provides a motor-operated compressor comprising a compression module configured to compress a fluid by an orbiting motion of a scroll, an inverter module configured to control an operation of the compression module, a driving motor disposed in the compression module and configured to provide a rotational force for the orbiting motion of the scroll, a power element disposed in the inverter module and configured to provide power to the driving motor, and a three-phase airtight terminal comprising columnar conductors and columnar insulators disposed in an alternating manner along concentric circles. The three-phase airtight terminal may be configured to electrically connect the power element and the driving motor.

Description

CROSS-REFERENCE TO RELATED APPLICATION[0001]This application claims the benefit of priority under 35 U.S.C. § 119(a) to Korean Patent Application No. 10-2019-0067409, filed on Jun. 7, 2019, the disclosure of which is incorporated by reference herein in its entirety.BACKGROUND1. Technical Field[0002]The present disclosure relates to a motor-operated compressor operated by a motor.2. Description of the Related Art[0003]Compressors are classified into a mechanical type using an engine as an operating source and a motor-operated type using a motor as an operating source.[0004]For a motor-operated compressor, a scroll compression method suitable for a high compression ratio operation is widely known. A motor part is installed inside a sealed casing of the motor-operated compressor having a scroll compression method (hereinafter, abbreviated to motor-operated compressor). And a compression part including a fixed scroll and an orbiting scroll is installed on one side of the motor part. The...

AI Technical Summary

Benefits of technology

The patent aims to reduce the space taken up by a three-phase airtight terminal in an inverter by designing it in a simpler shape. This reduces the dead space in the inverter and compressor and also minimizes vibration transmission from the driving unit to the inverter. Additionally, the simplified structure helps reduce weight and cost of the three-phase airtight terminal.

Problems solved by technology

However, the structure of the three-phase connector for the output of the inverter disclosed in the patent document has a limitation in miniaturization of the inverter.

Accordingly, the structure of the three-phase connector for inverter output disclosed in the patent document has a limitation in reducing vibration transmitted from the driving unit to the inverter.

Lastly, a complicated structure of the three-phase connector increases weight and fabrication cost of the entire compressor, and therefore, an introduction of a structure that lowers the cost is needed.

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