DC-DC converters having DIN rail mounts

Patent metadata

Field	Value
Publication number	US-11095117-B2
Application number	US-201916515832-A
Country	US
Kind code	B2
Filing date	Jul 18, 2019
Priority date	Jul 20, 2018
Publication date	Aug 17, 2021
Grant date	Aug 17, 2021

Abstract

Example DC-DC power distribution systems include electronic communication device(s), a circuit breaker DIN rail adapted to receive a circuit breaker for providing electrical protection to the one or more electronic communication devices, and a DC-DC converter including a housing having a DIN rail mount, a voltage input and a voltage output. The DC-DC converter includes a DC-DC voltage converter circuit coupled between the voltage input and the voltage output, and a controller electrically coupled with the DC-DC voltage converter circuit. The DC-DC converter is mounted on the circuit breaker DIN rail via the DIN rail mount of the DC-DC converter housing, and the controller is configured to control the DC-DC voltage converter circuit to convert a DC voltage at the voltage input to a different DC voltage at the voltage output to supply power to the one or more electronic communication devices.

First claim

The invention claimed is:

1. A DC-DC power distribution system comprising:
one or more electronic communication devices;
a circuit breaker DIN rail adapted to receive a circuit breaker for providing electrical protection to the one or more electronic communication devices; and
a DC-DC converter including a housing having a DIN rail mount, a voltage input and a voltage output, the DC-DC converter including a DC-DC voltage converter circuit coupled between the voltage input and the voltage output, a controller electrically coupled with the DC-DC voltage converter circuit, a power or current limiter circuit coupled between the voltage input and the voltage output and configured to limit a DC output power or DC output current of the DC-DC converter to below a specified output power threshold or specified output current threshold, and an overcurrent protection circuit coupled between the voltage input and the voltage output and configured to protect the DC-DC converter from an overcurrent condition, wherein:
the DC-DC converter is mounted on the circuit breaker DIN rail via the DIN rail mount of the DC-DC converter housing; and
the controller is configured to control the DC-DC voltage converter circuit to convert a DC voltage at the voltage input to a different DC voltage at the voltage output to supply power to the one or more electronic communication devices at the DC output voltage.

2. The DC-DC power distribution system of claim 1 , wherein:
the controller is coupled with the power or current limiter circuit and configured to control the power or current limiter circuit to limit the DC output power or DC output current of the DC-DC converter to below a specified output power threshold or specified output current threshold; or
the controller is coupled with the overcurrent protection circuit and configured to control the overcurrent protection circuit to protect the DC-DC converter from an overcurrent condition.

3. The DC-DC power distribution system of claim 1 , wherein the controller is configured to operate the DC-DC voltage converter circuit to convert a DC input voltage within a specified voltage input range to a DC output voltage within a specified voltage output range.

4. The DC-DC power distribution system of claim 3 , wherein the specified voltage input range is −36VDC to −58VDC.

5. The DC-DC power distribution system of claim 3 , wherein the specified voltage output range is −48V to −72VDC.

6. The DC-DC power distribution system of claim 1 , wherein the power or current limiter circuit is configured to limit the DC output power to below the specified output power threshold in a range of between 100 W and 2500 W.

7. The DC-DC power distribution system of claim 1 , wherein the power or current limiter circuit is configured to limit the DC output current to below the specified output current threshold in a range of between 1 A and 50 A.

8. The DC-DC power distribution system of claim 1 , wherein the overcurrent protection circuit is configured to protect the DC-DC converter from an overcurrent condition at a DC output current threshold in a range of between 1 A and 50 A.

9. The DC-DC power distribution system of claim 1 , wherein the voltage input includes a DIN rail line terminal and the voltage output includes a DIN rail load terminal.

10. The DC-DC power distribution system of claim 1 , wherein the housing has substantially the same form factor as a DIN rail circuit breaker.

11. The DC-DC power distribution system of claim 1 , further comprising:
a current sense coupled to detect a DC input current or DC output current of the DC-DC converter; or
a voltage sense coupled to detect a DC input voltage of the DC-DC converter, a DC output voltage of the DC-DC converter, or a voltage on an input of a remote radio unit used to control the DC output voltage of the DC-DC converter.

12. The DC-DC power distribution system of claim 1 , further comprising a fault protection circuit coupled between the voltage input and the voltage output, the fault protection circuit configured to create a physical disconnect between the voltage input and the voltage output when the overcurrent protection circuit is unable to sufficiently limit the output current.

13. The DC-DC power distribution system of claim 1 , further comprising an alarm contact positioned on an outer portion of the housing, the alarm contact configured to transmit an alarm signal when an alarm condition of the DC-DC converter is detected.

14. The DC-DC power distribution system of claim 1 , wherein:
the controller is configured to communicate with a computing device to allow the computing device to monitor or program the DC-DC converter; or
the controller is configured to disconnect at least one of the voltage input and the voltage output when a low-voltage condition is detected.

15. The DC-DC power distribution system of claim 1 , wherein:
the controller is configured to receive a manual on/off input to control the DC-DC converter via a manual on/off operation control; or
the controller is configured to receive a remote on/off input to control the DC-DC converter via a remote on/off operation control.

16. A method of supplying power in a DC-DC power distribution system, the DC-DC power distribution system including one or more electronic communication devices, a circuit breaker DIN rail, and a DC-DC converter, the DC-DC converter including a housing having a DIN rail mount, a voltage input and a voltage output, the DC-DC converter including a DC-DC voltage converter circuit coupled between the voltage input and the voltage output, a controller coupled with the DC-DC voltage converter circuit, the DC-DC converter mounted on the circuit breaker DIN rail via the DIN rail mount of the DC-DC converter housing, a power or current limiter circuit coupled between the voltage input and the voltage output, and an overcurrent protection circuit coupled between the voltage input and the voltage output, the method comprising:
receiving, at the voltage input of the DC-DC converter mounted on the circuit breaker DIN rail, a DC input voltage;
converting, by the DC-DC voltage converter circuit, the received DC input voltage to a different DC output voltage;
supplying, via the voltage output of the DC-DC converter mounted on the circuit breaker DIN rail, the converted DC output voltage to the one or more electronic communication devices;
limiting, by the power or current limiter circuit, a DC output power or DC output current of the DC-DC converter to below a specified output power threshold or specified output current threshold; and
inhibiting, by the overcurrent protection circuit, the DC-DC converter from maintaining an overcurrent condition.

17. The method of claim 16 , wherein the one or more electronic communication devices include wireless radio device(s) located on a radio tower.

18. The method of claim 17 , wherein:
receiving the DC input voltage includes receiving the DC input voltage from a battery or a DC power system; and
supplying the converted DC output voltage includes supplying the converted DC output voltage to the wireless radio device(s) from the DC power system or the battery during a utility power outage.

19. The method of claim 16 , further comprising installing the DC-DC converter on the circuit breaker DIN rail by mounting the DIN rail mount of the DC-DC converter housing on the circuit breaker DIN rail.

20. A DC-DC converter comprising:
a housing having a DIN rail mount, a voltage input and a voltage output, the DIN rail mount adapted to

Assignees

• Vertiv Energy Systems Inc
• Vertiv Corp

Inventors

• Strouse Timothy Brooklyn
• Smith Michael Francis
• Hiidel Paul Brian

Classifications

• H02H7/1213 Primary

  for DC-DC converters · CPC title

• H02M3/003 Primary

  Constructional details, e.g. physical layout, assembly, wiring or busbar connections · CPC title

• H05K7/1457

  Power distribution arrangements · CPC title

• H02B1/052

  Mounting on rails · CPC title

• H02M1/32

  Means for protecting converters other than automatic disconnection · CPC title