IP Library Granted Patent US 10,249,459
Granted Patent B2
US 10,249,459 · App. 15/268,716 · Granted Apr 2, 2019

Advanced cooling system for electrical equipment

Inventors: He Yang (Shanghai, CN); Li Yu (Pittsburgh, PA); Jiong Chen (Shanghai, CN); Mark Mao (Shanghai, CN); Chao Xin (Shanghai, CN); Yujie Yang (Hangzhou, CN)
Assignee: EATON INTELLIGENT POWER LIMITED
H01H33/66H01F38/14H01H9/52H01H33/6606H01H2011/0068H01H2033/6613
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Quick Facts
Patent No.
US 10,249,459
App. No.
15/268,716
Granted
Apr 2, 2019
Kind
B2
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.

Claims (56)

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.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 11, 2019
From: EATON CORPORATION
To: EATON INTELLIGENT POWER LIMITED
Reel/Frame 048855/0626 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 7, 2018
From: EATON CORPORATION
To: EATON INTELLIGENT POWER LIMITED
Reel/Frame 047704/0478 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 25, 2017
From: YANG, HE; YU, LI; CHEN, JIONG; MAO, MARK; XIN, CHAO; YANG, YUJIE
To: EATON CORPORATION
Reel/Frame 042509/0322 →
Continuity (1)
Related Publication 20180082812A1 · Mar 22, 2018
Cited By (1)
US 12,381,053