Uninterruptible power supply circuit having hot swappable battery module

• US 20050052085A1
• Filed: 09/04/2003
• Published: 03/10/2005
• Est. Priority Date: 07/31/2003
• Status: Abandoned Application

• Current Assignee: DIGI Power Manufacturing Incorporated
• Original Assignee: DIGI Power Manufacturing Incorporated
• Inventors: Huang, Min-Huang, Chang, Herlin
• Application Number:
  US10/653,948
• Publication Number:
  US 20050052085A1
• Time in Patent Office: Days
• US Class Current: 307/66
• CPC Class Codes: H02J 1/001 Hot plugging or unplugging of load or power modules to or from power distribution networks
• CPC Class Codes: H02J 2310/16 The load or loads being an Information and Communication Technology [ICT] facility
• CPC Class Codes: H02J 9/061 for DC powered loads
• CPC Class Codes: Y02E 60/10 Energy storage using batteries

Abstract

An improved uninterruptible power supply circuit having a hot swappable battery module is connected with internal connectors of a UPS power supply circuit via external connectors of the power supply circuit. When the supply of the commercial AC power is abnormal, the backup battery provides power to the power supply circuit via the internal connectors in response to signals from the UPS power supply circuit, thereby instantly providing power to the computer and avoiding power interruption, wherein the backup battery is provided in a removable battery box, and several backup batteries can be connected in parallel by means of the removable battery box so as to provide power to the computer in case of long-term power failure.

Claims

1. An improved uninterruptible power supply circuit having a hot swappable battery module, comprising a UPS power supply circuit for providing power of a backup battery to a load via connectors, wherein said backup battery provides power to said load by parallel connection of removable battery boxes.

2. An improved uninterruptible power supply circuit having a hot swappable battery module, comprising essentially of:

a power supply circuit, comprising at least an external connector connected with internal connectors, wherein backup power of said internal connectors instantly provides power to a computer when external power is abnormal;

a UPS power supply circuit, comprising at least an internal connector connected with said external connector, wherein backup power of said internal connectors instantly provides power to said computer when external power is abnormal, wherein one end thereof is connected to a backup battery; and

a removable battery box, comprising said backup battery disposed therein for providing power to said circuits and said computer;

wherein said power supply circuit is connected to said internal connector of said UPS power supply circuit via said external connector thereof for providing commercial AC power to said computer via said power supply circuit, and when said commercial AC power is abnormal, said backup battery of said UPS power supply circuit instantly provides power to said computer via said internal connector, thereby maintaining normal operation of said computer.

3. The improved uninterruptible power supply circuit having a hot swappable battery module according to claim 2, said power supply circuit comprising essentially of:

a voltage regulator circuit, comprising at least a rectifier circuit for accepting power, filtering and converting said power into a direct current to be outputted;

a DC TO DC converting circuit;

a standby power;

a computer power switch; and

an external connector, connected to power supply signals, load signals, computer power switch signals and relay switch signals, respectively, and connected with said internal connector, such that said UPS power supply circuit instantly realizes supply conditions of said commercial AC power via said internal connector, thereby instantly providing power to said computer to maintain normal operation of said computer when the supply of said commercial AC power is abnormal.

4. The improved uninterruptible power supply circuit having a hot swappable battery module according to claim 2, said UPS power supply circuit comprising essentially of:

an internal connector connected with said external connector of said power supply circuit;

an AC detecting and charging circuit for detecting whether the supply of said commercial AC power is normal and charges to said backup battery via said external connector;

a battery detecting circuit for detecting whether the power of said backup battery is sufficient, wherein when the power of said backup battery is full, said charging is switched off;

a backup battery provided in said removable battery box, wherein said backup battery is charged by said charging circuit;

a monitoring signal;

a DC TO DC boosting circuit, connected to said power supply circuit via said internal connector, and instantly providing power to said voltage regulator circuit when the supply of said commercial AC power is abnormal, thereby maintaining normal operation of said voltage regulator circuit;

a UPS controlling and circuit managing system for controlling signals from said power supply circuit, said UPS power supply circuit and said removable battery box;

wherein when said commercial AC power is inputted, said UPS power supply circuit activates said AC detecting and charging circuit by means of said UPS controlling and circuit managing system, when the supply of said commercial AC power is normal, said battery detecting circuit transmits a signal to said charging circuit, thereby charging said backup battery, when the charging operation is completed, said charging circuit automatically interrupts the operation of said charging circuit, thereby avoiding damage of said backup battery due to saturation of said back-up battery;

said UPS controlling and circuit managing system transmits a signal to said AC detecting and charging circuit, said AC detecting and charging circuit is connected to said power supply circuit via said internal connector, thereby detecting anytime whether the supply of said commercial AC power is normal, when the supply of said commercial AC power is abnormal, by means of said DC TO DC boosting circuit, said UPS power supply circuit instantly uses the power of said backup battery to provide a stable current to said power supply circuit via said internal connector, thereby instantly providing power to maintain normal operation of said computer.

5. The improved uninterruptible power supply circuit having a hot swappable battery module according to claim 2, wherein said removable battery box has therein said backup battery and provided thereon with an inserting terminal, wherein a contact element extends from the front end of said inserting terminal, and said contact element is connected with the UPS power supply circuit and provides the power to said computer by said UPS controlling and circuit managing system of said UPS power supply circuit.

6. The improved uninterruptible power supply circuit having a hot swappable battery module according to claim 2, wherein said removable battery box is provided on said computer by means of parallel connection and fault tolerance, thereby providing power to said computer in case of long-term power failure.

7. The improved uninterruptible power supply circuit having a hot swappable battery module according to claim 2, wherein said removable battery box is provided with a display light for displaying power statuses, wherein said display light is a light emitting diode (LED).

8. The improved uninterruptible power supply circuit having a hot swappable battery module according to claim 2, wherein said removable battery box is provided with a handle for facilitating drawing-out/installing said removable battery box during the hot swapping operation.

9. The improved uninterruptible power supply circuit having a hot swappable battery module according to claim 2, wherein each of the bilateral sides of said removable battery box is provided with a gliding track for facilitating easily positioning and smoothly drawing-out/installing said removable battery box during the hot swapping operation.

10. The improved uninterruptible power supply circuit having a hot swappable battery module according to claim 2, wherein said removable battery box has positive and negative terminals to be connected with another removable battery box in parallel, thereby maintaining normal operation of said computer in case of long-term power failure.