Modular power distribution system for use in computer equipment racks

• US 6,826,036 B2
• Filed: 06/28/2002
• Issued: 11/30/2004
• Est. Priority Date: 06/28/2002
• Status: Expired due to Term

• Current Assignee: Hewlett Packard Enterprise Development LP (Hewlett-Packard Enterprise Company)
• Original Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Inventors: Pereira, Robert A.
• Primary Examiner(s): THOMPSON, GREGORY D
• Application Number:
  US10/185,530
• Publication Number:
  US 20040000815A1
• Time in Patent Office: 886 Days
• Field of Search: 307/112-113, 174/50, 174/59, 174/68.2, 455/347, 455/349, 361/110, 361/111, 361/614, 361/601, 361/622, 361/624, 361/641, 361/644, 361/648, 361/657, 361/678, 361/724-727
• US Class Current: 361/624
• CPC Class Codes: G06F 1/189 Power distribution
• CPC Class Codes: H05K 7/1457 Power distribution arrangements

Abstract

A modular power distribution system is provided for distributing power within an equipment rack. A control unit is mounted within the rack having a power input connected to a power source and a converter for converting the input power to a power supply for the rack equipment. The control unit includes a housing and power outlets are provided for electrical connection to the control unit and distributing the converted power supply to the equipment. One or more extension bars are mounted within the rack adjacent a corner support of the rack. The extension bar includes a power inlet and is connected via an electrical conductor to one of the power outlets of the control unit. The extension bar includes a number of power outlets (such as up to or more than 8) adapted for electrical connection to power supply lines (cords or hardwiring) from the rack equipment.

Claims

1. A power distribution system for distributing power to electrical or computer equipment mounted within an equipment rack on corner supports, comprising:

a control unit mounted within the rack including a power input for receiving power from a power source located outside the rack, a power converter for converting the received power to an output electrical power, and a plurality of power outlets for providing an electrical connection to the control unit and outputting the output electrical power;

an extension bar mounted within the rack adjacent one of the corner supports and having an electrical power input for input of electrical power to the extension bar and a plurality of power outlets adapted to couple with and distribute electrical power to conducting elements that electrically connect the extension bar to the mounted equipment; and

an electrical power cable connected to one of the power outlets in the control unit and to the electrical power input of the extension bar.

2. The system of claim 1, wherein the control unit includes a housing to which the control unit power outlets are mounted and brackets connected to ends of the housing configured for supporting the housing at a selectable height within the cabinet on two adjacent ones of the corner supports, whereby 0U of rack U-spacing in the equipment rack is utilized by the housing.

3. The system of claim 1, wherein the control unit includes a housing to which the control unit power outlets are mounted and brackets connected to the housing configured for supporting the housing in a horizontal position between the corner supports and wherein the housing has a thickness of less than about 1U.

4. The system of claim 1, further including a second extension bar within the rack adjacent one of the corner supports and having an electrical power input for input of electrical power to the second extension bar and a plurality of power outlets adapted to couple with and distribute electrical power to conduction elements that electrically connect the second extension bar to the mounted equipment.

5. The system of claim 4, wherein the power outlets of the second extension bar differ from the power outlets of the extension bar.

6. The system of claim 1, wherein the control unit includes overload protection and an output circuit breaker for each of the power outlets in the control unit.

7. The system of claim 1, wherein the control unit includes a network communication interface and is communicatively linked to a remote monitoring and management node via a communication network and the communication interface.

8. The system of claim 7, wherein the control unit includes a monitoring system for sensing operating parameters for the control unit and in response, transmitting monitoring signals to the remote monitoring and management node.

9. The system of claim 8, wherein the operating parameters are selected from the group consisting of output line status, power consumption at the power outlets, and output line voltage.

10. The system of claim 7, wherein the control unit includes a management system responsive to command signals from the remote monitoring and management node to operate the control unit including selective power distribution to the power outlets.

11. A power distribution system for mounting within an equipment rack to distribute electrical power to devices mounted within the equipment rack from an electrical power source external to the equipment rack, comprising:

an elongate first extension bar having a power inlet and a plurality of power output connectors adapted to couple with electrical conductor elements that electrically connect each of the power output connectors with one of the mounted devices and further including means for mounting the first extension bar in a first position adjacent to and substantially parallel to a corner support of the rack;

an elongate second extension bar having a power inlet and a plurality of power output connectors adapted to couple with additional ones of the electrical conductor elements that electrically connect each of the power output connectors with one of the mounted devices and further including means for mounting the second extension bar in a second position adjacent to and substantially parallel to the corner support of the rack;

a control unit mounted within the rack including a power input for receiving power from the external power source and a plurality of power output connectors to output the received power and to couple with electrical conductor elements that electrically connect a first one of the power output connectors with the power inlet of the first extension bar and a second one of the power output connectors with the power inlet of the second extension bar.

12. The system of claim 11, wherein the control unit includes a housing with means for rigidly mounting the housing to two adjacent ones of the corner supports of the rack and wherein the housing has a thickness less than about a thickness of the corner supports, whereby 0U of rack U-spacing in the equipment rack is utilized by the housing.

13. The system of claim 11, wherein the control unit has a current rating selected from the range of about 16 amps to about 40 amps.

14. The system of claim 11, wherein first and second extension bars include at least six of the power output connectors.

15. The system of claim 11, further including a third and a fourth extension bar each having a power inlet and a plurality of power output connectors adapted to couple with additional ones of the electrical conductor elements that electrically connect each of the power output connectors with one of the mounted devices and further including means for mounting the second extension bar in a second position adjacent to and substantially parallel to the corner support of the rack and each having their power inlets connected via an electrical conductor element to one of the power output connectors of the control unit.

16. The system of claim 11, wherein the control unit includes a network communication interface and is communicatively linked to a remote monitoring and management node via a communication network and the communication interface.

17. The system of claim 16, wherein the control unit includes a monitoring system for sensing operating parameters for the control unit and in response, transmitting monitoring signals to the remote monitoring and management node.

18. The system of claim 17, wherein the operating parameters are selected from the group consisting of output line status, power consumption at the power outlets, and output line voltage.

19. The system of claim 16, wherein the control unit includes a management system responsive to command signals from the remote monitoring and management node to operate the control unit including selective power distribution to the power outlets.