Compressor utilizing low volt power tapped from high volt power

• US 6,964,558 B2
• Filed: 08/29/2003
• Issued: 11/15/2005
• Est. Priority Date: 05/01/2000
• Status: Expired due to Fees

• Current Assignee: Scroll Technologies (Danfoss A/S)
• Original Assignee: Scroll Technologies (Danfoss A/S)
• Inventors: Bush, James W., Sun, Zili, Williams, John R., Hill, Joe T., Zamudio, Carlos, Barito, Thomas, Hugenroth, Jason, Hahn, Greg
• Primary Examiner(s): Rodriguez, William H.
• Application Number:
  US10/652,147
• Publication Number:
  US 20040037706A1
• Time in Patent Office: 809 Days
• Field of Search: 417/26, 417/28, 417/44.1, 417/32, 417/310, 417/410.5, 417/53, 310/87, 310/89
• US Class Current: 417/44.1
• CPC Class Codes: F04C 2270/80 Diagnostics
• CPC Class Codes: F04C 23/00 Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids F04C25/00 takes precedence
• CPC Class Codes: F04C 28/28 Safety arrangements; Monitoring
• CPC Class Codes: H02K 11/0094 Structural association with other electrical or electronic devices
• CPC Class Codes: H02K 11/20 for measuring, monitoring, testing, protecting or switching rectifiers H02K11/04; power electronics H02K11/33
• CPC Class Codes: H02K 11/25 Devices for sensing temperature, or actuated thereby
• CPC Class Codes: H02K 11/33 Drive circuits, e.g. power electronics H02K11/38 takes precedence
• CPC Class Codes: H02K 11/35 Devices for recording or transmitting machine parameters, e.g. memory chips or radio transmitters for diagnosis

Abstract

Low voltage electrical power is supplied to a diagnostic control device in a sealed compressor. Electrical power is tapped from a high voltage power line and transformed to low voltage power that in turn operates the diagnostic control device. The diagnostic control device and the electric voltage transforming system are housed within the sealed compressor shell, thus eliminating the need for additional openings in the compressor shell. Other low voltage devices can be powered in this way.

Claims

1. A compressor comprising:

a sealed compressor shell housing a compressor pump unit, an electric motor for driving said compressor pump unit, and a low voltage powered valve associated with the compressor pump unit, said pump unit, said electric motor and said low voltage valve all being received within said compressor shell, said electric motor requiring a higher voltage power than said low voltage valve;

an inlet opening in said compressor shell for receiving an incoming high voltage electric power supply for powering said electric motor; and

a system for converting said incoming high voltage electric power to a low voltage electrical power, and feeding said low voltage electrical power to said low voltage valve, said system being received within said sealed compressor shell.

2. A compressor as recited in claim 1, wherein said compressor pump unit is a scroll compressor pump unit.

3. A compressor as recited in claim 1, wherein a low voltage sensor is also supplied with low voltage electrical power from said system for converting.

4. A compressor as recited in claim 1, wherein said system for converting high voltage electrical power to low volt electrical power includes a transformer.

5. A compressor comprising:

a sealed compressor shell housing a scroll compressor pump unit, an electric motor for driving said compressor pump unit, a low voltage powered valve and a low voltage sensor both associated with said scroll compressor pump unit and said low voltage sensor, said scroll compressor pump unit, said electric motor, said low voltage valve and said low voltage sensor all being received within said compressor shell, said electric motor requiring a higher voltage power than said low voltage valve and said low voltage sensor;

an inlet opening in said compressor shell for receiving an incoming high voltage electric power supply for powering said electric motor; and

a system for converting said incoming high voltage electric power to a low voltage electrical power, and feeding said low voltage electrical power to said low voltage valve and said low voltage sensor, said system being received within said sealed compressor shell.