Electric compressor

Patent metadata

Field	Value
Publication number	US-2025237216-A1
Application number	US-202318563194-A
Country	US
Kind code	A1
Filing date	Apr 13, 2023
Priority date	Oct 14, 2022
Publication date	Jul 24, 2025
Grant date	—

Abstract

An electric compressor includes a motor configured to generate power; a compression mechanism configured to be driven by the motor and to compress a refrigerant; an inverter configured to control the motor; and a connector configured to include a terminal pin connecting the motor and the inverter, a plate supporting the terminal pin, and an insulator that insulates between the terminal pin and the plate, wherein at least a portion of the insulator is formed to be surrounded by the terminal pin, so that it is possible to suppress the increase in cost, weight, and size due to the connector.

First claim

1 - 15 . (canceled)

16 . An electric compressor comprising:
a motor configured to generate power; a compression mechanism configured to be driven by the motor and to compress a refrigerant; an inverter configured to control the motor; and a connector configured to include a terminal pin connecting the motor and the inverter, a plate supporting the terminal pin, and an insulator that insulates between the terminal pin and the plate, wherein at least a portion of the insulator is formed to be surrounded by the terminal pin.

17 . The electric compressor of claim 16 , wherein the terminal pin further comprises portions having different cross-sectional areas in a direction perpendicular to an extension direction.

18 . The electric compressor of claim 16 , wherein the insulator further comprises: a first end protruding toward the motor, a second end protruding toward the inverter, and a middle portion extending from the first end to the second end and passing through the plate, and wherein the terminal pin further comprises: a first terminal that surrounds an outer peripheral surface of the first end, a second terminal that surrounds an outer peripheral surface of the second end, and a connection portion that extends from the first terminal to the second terminal and is received in the middle portion.

19 . The electric compressor of claim 18 , wherein the connection portion further comprises a groove that is engraved on an outer peripheral surface of the connection portion, and wherein the insulator further comprises a protrusion that is inserted into the groove.

20 . The electric compressor of claim 18 , wherein the first end and the second end are each formed in a cylindrical shape, and wherein the first terminal and the second terminal are each formed in an annular shape.

21 . The electric compressor of claim 20 , wherein the first terminal is inserted into a first lamella spring and an outer peripheral surface of the first terminal comes into contact with an inner peripheral surface of the first lamella spring, and the first lamella spring is inserted into a terminal of the motor and an outer peripheral surface of the first lamella spring comes into contact with the terminal of the motor, so that the terminal pin is electrically connected to the motor, and wherein the second terminal is inserted into a second lamella spring and an outer peripheral surface of the second terminal comes into contact with an inner peripheral surface of the second lamella spring, and the second lamella spring is inserted into a terminal of the inverter and an outer peripheral surface of the second lamella spring comes into contact with the terminal of the inverter, so that the terminal pin is electrically connected to the inverter.

22 . The electric compressor of claim 20 , wherein the first end further comprises a first front end protruding further toward the motor than the first terminal, and wherein the second end further comprises a second front end protruding further toward the inverter than the second terminal.

23 . The electric compressor of claim 22 , wherein an edge of the first front end and an edge of the second front end are chamfered.

24 . The electric compressor of claim 20 , wherein the middle portion is formed in a cylindrical shape that is concentric with the first end and the second end and that has an outer diameter larger than those of the first end and the second end, so that a first stepped portion is formed between the first end and the middle portion and a second stepped portion is formed between the second end and the middle portion.

25 . The electric compressor of claim 18 , wherein a cross-section perpendicular to an extension direction of the connection portion further comprises a pair of long sides parallel to each other and a pair of short sides parallel to each other, and wherein a length of the long side is formed less than an outer diameter of the first terminal and an outer diameter of the second terminal, and a length of the short side is formed less than the length of the long side.

26 . The electric compressor of claim 25 , wherein the connection portion further comprises a pair of long side surfaces each including the pair of long sides and a pair of short side surfaces each including the pair of short sides, wherein a plurality of the terminal pins is provided, and wherein the plurality of terminal pins is arranged to be spaced apart from each other in an extension direction of the plate, and the long side surfaces of the plurality of terminal pins are arranged to face each other.

27 . The electric compressor of claim 18 , wherein the connection portion further comprises a central portion disposed concentrically with the first terminal and the second terminal, a first curved portion extending from the central portion to the first terminal, and a second curved portion extending from the central portion to the second terminal.

28 . The electric compressor of claim 18 , wherein the first terminal and the second terminal are each formed to be spaced apart from the plate within a range of 3 mm to 20 mm.

29 . The electric compressor of claim 18 , wherein the insulator further comprises a first flange and a second flange, and wherein the first flange extends radially outward from the middle portion and covers a portion of a motor-facing surface of the plate, and the second flange extends radially outward from the middle portion and covers a portion of an inverter-facing surface of the plate.

30 . The electric compressor of claim 16 , wherein the insulator is made of a plastic material, and the terminal pin is made of a copper material.

Assignees

• Hanon Systems

Inventors

• Lee Hyun Woo
• Hwang Seung Yong
• Oh Sung Taeg
• Kim Min Gyu
• Kim Seung Kil
• Bae Sang Woo
• Ahn Hew Nam
• Yoon Young Seop
• Yun Je Su

Classifications

• H01R2105/00

  Three poles · CPC title

• H01R13/405

  Securing in non-demountable manner, e.g. moulding, riveting · CPC title

• H01R13/04

  Pins or blades for co-operation with sockets · CPC title

• F04C2240/403

  with inverter for speed control · CPC title

• F04C29/0085

  Prime movers · CPC title