Refrigerant liquid-gas separator

Patent metadata

Field	Value
Publication number	US-11512883-B2
Application number	US-202016941495-A
Country	US
Kind code	B2
Filing date	Jul 28, 2020
Priority date	Sep 30, 2016
Publication date	Nov 29, 2022
Grant date	Nov 29, 2022

Abstract

An HVAC system includes a refrigerant liquid-gas separator. The liquid-gas separator is thermally coupled to electronics to transfer heat away from the electronics, and assist in vaporizing liquid refrigerant. The liquid-gas separator device includes a refrigeration section configured to couple to a refrigeration loop, and electronics thermally coupled to the refrigeration section. The refrigeration section includes: (a) a refrigerant inlet configured to receive refrigerant from the refrigeration loop; (b) a refrigerant outlet configured to release vapor refrigerant to the refrigeration loop; and (c) a cavity coupled to the refrigerant inlet and the refrigerant outlet, the cavity configured to separate liquid refrigerant from vapor refrigerant. During use of the HVAC system, heat from the electronics board is transferred to the refrigerant. The liquid-gas separator includes a check valve configured to inhibit flow of refrigerant into the liquid-gas separator device via the refrigerant outlet.

First claim

What is claimed is:

1. A method of cooling electronics, comprising:
receiving a refrigerant via a refrigerant inlet of a liquid-gas separator device, wherein the refrigerant comprises a vapor refrigerant and a liquid refrigerant;
separating, within a refrigerant cavity of the liquid-gas separator device, the vapor refrigerant from the liquid refrigerant, wherein the refrigerant flows from an inlet sub-cavity coupled to the refrigerant inlet over or under a planar divider to an outlet sub-cavity coupled to a refrigerant outlet, the planar divider extending from at least one wall of the refrigerant cavity into the refrigerant cavity and at least partially defining the inlet sub-cavity coupled to the refrigerant inlet and the outlet sub-cavity coupled to the refrigerant outlet;
operating one or more electronic components thermally coupled to the refrigerant cavity, whereby the one or more electronic components generate heat during operation;
facilitating transfer of at least a portion of the heat generated by the one or more electronic components to the refrigerant while the refrigerant is within the refrigerant cavity; and
releasing the vapor refrigerant via the refrigerant outlet of the liquid-gas separator device;
whereby facilitating transfer of the at least a portion of the heat generated by the one or more electronic components to the refrigerant converts at least a portion of the refrigerant from the liquid refrigerant to the vapor refrigerant; and
whereby facilitating transfer of the at least a portion of the heat generated by the one or more electronic components to the refrigerant cools the one or more electronic components.

2. The method of claim 1 , further comprising utilizing a check valve within the liquid-gas separator device to inhibit flow of refrigerant into the liquid-gas separator device through the refrigerant outlet.

3. The method of claim 1 , further comprising utilizing an oil aperture within the liquid-gas separator device to enable flow of oil out of the liquid-gas separator device through the refrigerant outlet.

4. The method of claim 1 , further comprising receiving refrigerant via a refrigerant hose coupled to the refrigerant inlet.

5. The method of claim 1 , further comprising receiving refrigerant from an evaporator.

6. The method of claim 5 , further comprising releasing the liquid refrigerant to the evaporator.

7. The method of claim 1 , further comprising releasing the liquid refrigerant to a refrigerant reservoir.

8. The method of claim 1 , further comprising separating the vapor refrigerant from the liquid refrigerant via gravity.

9. The method of claim 1 , wherein the one or more electronic components comprises a battery management system.

10. The method of claim 1 , further comprising facilitating transfer of at least the portion of the heat generated by the one or more electronic components to the refrigerant via one or more fasteners.

11. The method of claim 1 , further comprising facilitating transfer of at least the portion of the heat generated by the one or more electronic components to the refrigerant via a thermal material.

12. The method of claim 1 , further comprising releasing the vapor refrigerant to a compressor.

13. A method of cooling electronics, comprising:
receiving a refrigerant via a refrigerant inlet of a liquid-gas separator device, wherein the refrigerant comprises a vapor refrigerant and a liquid refrigerant;
separating, within a refrigerant cavity of the liquid-gas separator device, the vapor refrigerant from the liquid refrigerant, wherein the refrigerant flows from an inlet sub-cavity coupled to the refrigerant inlet over or under a planar divider to an outlet sub-cavity coupled to a refrigerant outlet, the planar divider extending from at least one wall of the refrigerant cavity into the refrigerant cavity and at least partially defining the inlet sub-cavity coupled to the refrigerant inlet and the outlet sub-cavity coupled to the refrigerant outlet;
operating one or more electronic components thermally coupled to the refrigerant cavity, whereby the one or more electronic components generate heat during operation;
facilitating transfer of at least a portion of the heat generated by the one or more electronic components to the refrigerant while the refrigerant is within the refrigerant cavity; and
releasing the vapor refrigerant via the refrigerant outlet of the liquid-gas separator device.

14. The method of claim 13 , whereby facilitating transfer of the at least a portion of the heat generated by the one or more electronic components to the refrigerant converts at least a portion of the refrigerant from the liquid refrigerant to the vapor refrigerant.

15. The method of claim 13 , whereby facilitating transfer of the at least a portion of the heat generated by the one or more electronic components to the refrigerant cools the one or more electronic components.

16. The method of claim 13 , further comprising utilizing a check valve within the liquid-gas separator device to inhibit flow of refrigerant into the liquid-gas separator device through the refrigerant outlet.

17. The method of claim 13 , further comprising utilizing an oil aperture within the liquid-gas separator device to enable flow of oil out of the liquid-gas separator device through the refrigerant outlet.

18. The method of claim 13 , further comprising receiving refrigerant from an evaporator.

19. The method of claim 18 , further comprising releasing the liquid refrigerant to the evaporator.

20. The method of claim 13 , further comprising releasing the liquid refrigerant to a refrigerant reservoir.

Assignees

• Bergstrom Inc

Inventors

• Connell Brett S
• Herrmann Brett
• Sullivan Aaron D
• Zeigler Terry

Classifications

• H10W40/47

  by flowing liquids, e.g. forced water cooling · CPC title

• H10W40/73

  for cooling by change of state · CPC title

• H10W40/43

  by flowing gases, e.g. forced air cooling · CPC title

• H05K7/20936

  Liquid coolant with phase change · CPC title

• F25B31/006

  Cooling of compressor or motor · CPC title