Inverter connection terminal with cables attached to parts of the terminal projecting from upper and lower surfaces of a plate

• US 7,955,141 B2
• Filed: 12/08/2009
• Issued: 06/07/2011
• Est. Priority Date: 12/09/2008
• Status: Active Grant

• Current Assignee: Doowon Electronics Co., Ltd., Doowon Technical College
• Original Assignee: Doowon Electronics Co., Ltd., Doowon Technical College
• Inventors: Han, Young Chang, Koo, In Hwe, Jang, Se Hoon, Lee, Geon Ho
• Primary Examiner(s): Prasad; Chandrika
• Application Number:
  US12/633,163
• Publication Number:
  US 20100141066A1
• Time in Patent Office: 546 Days
• Field of Search: 439709-721, 439/801, 439/808, 439/883, 439/620.28
• US Class Current: 439/709
• CPC Class Codes: F04C 18/00 Rotary-piston pumps specially adapted for elastic fluids with fluid ring or the like F04C19/00; rotary-piston pumps in which the working-fluid is exclusively displaced by one or more reciprocating pistons F04B
• CPC Class Codes: F04C 18/02 of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
• CPC Class Codes: F04C 18/16 with helical teeth, e.g. chevron-shaped, screw type for non-parallel axes of movement F04C18/48
• CPC Class Codes: F04C 2240/803 Electric connectors or cables; Fittings therefor
• CPC Class Codes: F04C 2240/808 Electronic circuits (e.g. inverters) installed inside the machine
• CPC Class Codes: H01R 11/09 the connecting locations being identical
• CPC Class Codes: H01R 11/12 End pieces terminating in an eye, hook, or fork

Abstract

The present invention provides an inverter connection terminal assembly for an electric compressor. The inverter connection terminal assembly includes a connection terminal, in which upper and lower terminal projections project from the upper and lower surfaces of a plate, respectively, an inverter connection cable connected to the upper terminal projection of the connection terminal, a motor connection cable connected to the lower terminal projection of the connection terminal, an upper connector for connecting the upper terminal projection and the inverter connection cable, and a lower connector for connecting the lower terminal projection and the motor connection cable, wherein the lower terminal projection of the connection terminal includes a thread formed on the surface thereof such that the motor connection cable is fixed to the lower terminal projection by fastening a nut while a washer and a ring connector are sequentially inserted into the lower terminal projection.

Claims

1. An inverter connection terminal assembly for an electric compressor, the inverter connection terminal assembly comprising:

a connection terminal, in which upper and lower terminal projections project from the upper and lower surfaces of a plate, respectively;

an inverter connection cable connected to the upper terminal projection of the connection terminal;

a motor connection cable connected to the lower terminal projection of the connection terminal;

an upper connector for connecting the upper terminal projection and the inverter connection cable, the upper connector including a first washer, a first ring connector fixed to the inverter connection cable, and a first nut,

wherein the upper terminal projection of the connection terminal comprises a thread formed on the surface thereof such that the first washer and the first ring connector are sequentially inserted into the upper terminal projection and then the upper terminal projection is fastened by the first nut;

a lower connector for connecting the lower terminal projection and the motor connection cable, the lower connector including a second washer, a second ring connector fixed to the motor connection cable, and a second nut,

wherein the lower terminal projection of the connection terminal comprises a thread formed on the surface thereof such that the second washer and the second ring connector are sequentially inserted into the lower terminal projection and then the lower terminal projection is fastened by the second nut,

wherein the first ring connector and the inverter connection cable being fixed by a first cable connection unit formed of a first ring-shaped metal plate,

wherein the second ring connector and the motor cable being fixed by a second cable connection unit formed of a second ring-shaped metal plate;

an upper insulating member interposed between the first washer and the plate; and

a lower insulating member interposed between the second washer and the plate.