Advanced cooling system for electrical equipment

Patent metadata

Field	Value
Publication number	US-10249459-B2
Application number	US-201615268716-A
Country	US
Kind code	B2
Filing date	Sep 19, 2016
Priority date	Sep 19, 2016
Publication date	Apr 2, 2019
Grant date	Apr 2, 2019

Abstract

A cooling system for a circuit breaker is provided. The cooling system includes a temperature management unit, a power assembly, and a heat dissipating assembly. The temperature management unit is structured to detect the temperature at one of the circuit breaker or the conductor assembly. The power assembly is structured to harvest energy from the circuit breaker. The heat dissipating assembly includes a number of convection units, each heat convection unit is disposed immediately adjacent a number of the heat exchanging element.

First claim

What is claimed is:

1. A cooling system for a circuit breaker, said circuit breaker including a conductor assembly, said cooling system comprising:
a temperature management unit structured to detect the temperature at one of said circuit breaker or said conductor assembly;
a power assembly structured to harvest energy from said circuit breaker;
a heat dissipating assembly including a number of convection units;
a number of heat exchanging elements thermally coupled to said conductor assembly; and
each said convection unit disposed immediately adjacent the number of said heat exchanging elements.

2. The cooling system of claim 1 wherein:
said temperature management unit is structured to detect the temperature at both said circuit breaker and said conductor assembly; and
said temperature management unit is structured to actuate a selected number of convection units when a first temperature is detected at either said circuit breaker or said conductor assembly.

3. The cooling system of claim 2 wherein:
said temperature management unit includes a current sensor;
said current sensor structured to detect first characteristics in said conductor assembly; and
said temperature management unit is structured to actuate selected number of convection units when a first characteristic in said conductor assembly is detected.

4. The cooling system of claim 2 wherein said temperature management unit and said number of convection units maintain the same potential with said circuit breaker.

5. The cooling system of claim 2 wherein said power assembly includes a current transformer.

6. The cooling system of claim 2 wherein said number of convection units includes a number of piezoelectric fans.

7. The cooling system of claim 2 wherein:
said number of heat exchanging elements include a number of fins;
said number of convection units includes a number of piezoelectric fans; and
the number of said piezoelectric fans are substantially disposed within the space between said fins.

8. The cooling system of claim 7 wherein said conductor assembly includes a number of primary conductors and wherein:
said number of heat exchanging element includes a heat sink; and
said heat sink thermally coupled to the number of said primary conductors.

9. The cooling system of claim 7 wherein said piezoelectric fans are directly coupled to the number of said heat exchanging elements.

10. The cooling system of claim 2 wherein each of said number of convection units is a minimal current unit.

11. A circuit breaker comprising:
a conductor assembly;
a cooling system including a temperature management unit, a power assembly, a number of heat exchanging elements, and a heat dissipating assembly;
said conductor assembly thermally coupled to a number of said heat exchanging elements;
said temperature management unit structured to detect the temperature at one of said circuit breaker or said conductor assembly;
said power assembly structured to harvest energy from said circuit breaker; and
said heat dissipating assembly including a number of convection units, each said convection unit disposed immediately adjacent the number of said heat exchanging elements.

12. The circuit breaker of claim 11 wherein:
said temperature management unit is structured to detect the temperature at both said circuit breaker and said conductor assembly; and
said temperature management unit is structured to actuate selected number of convection units when a first temperature is detected at either said circuit breaker or said conductor assembly.

13. The circuit breaker of claim 12 wherein:
said temperature management unit includes a current sensor;
said current sensor structured to detect first characteristics in said conductor assembly; and
said temperature management unit is structured to actuate selected number of convection units when a first characteristic in said conductor assembly is detected.

14. The circuit breaker of claim 12 wherein said temperature management unit and said number of convection units maintain the same potential with said circuit breaker.

15. The circuit breaker of claim 12 wherein said power assembly includes a current transformer.

16. The circuit breaker of claim 12 wherein said number of convection units includes a number of piezoelectric fans.

17. The circuit breaker of claim 12 wherein:
said conductor assembly includes a number of primary conductors;
said number of heat exchanging elements includes a number of fins;
wherein said primary conductors define said number of fins;
said number of said convection units includes a number of piezoelectric fans; and
the number of said piezoelectric fans are substantially disposed within the space between said fins.

18. The circuit breaker of claim 17 wherein:
said conductor assembly includes a number of primary conductors;
said number of heat exchanging elements includes a heat sink; and
said heat sink thermally coupled to the number of said primary conductors.

19. The circuit breaker of claim 17 wherein:
said conductor assembly includes a number of primary conductors; and
the number of primary conductor defines the number of said heat exchanging elements.

20. The circuit breaker of claim 12 wherein each of said number of convection units is a minimal current unit.

Assignees

• Eaton Intelligent Power Ltd

Inventors

• Yang He
• Yu Li
• Chen Jiong
• Mao Mark
• Xin Chao
• Yang Yujie

Classifications

• H01H2033/6613

  Cooling arrangements directly associated with the terminal arrangements · CPC title

• H01F38/14

  Inductive couplings {(for wireless supply or distribution of electric power using inductive coupling H02J50/10)} · CPC title

• H01H2011/0068

  measuring the temperature of the switch or parts thereof · CPC title

• H01H9/52 Primary

  Cooling of switch parts (cooling of contacts H01H1/62) · CPC title

• H01H33/6606

  Terminal arrangements · CPC title