Battery system and manifold assembly having a manifold member and a connecting fitting

• US 8,920,956 B2
• Filed: 08/23/2010
• Issued: 12/30/2014
• Est. Priority Date: 08/23/2010
• Status: Active Grant

• Current Assignee: LG Energy Solution Limited (LG Corporation)
• Original Assignee: LG Chem Limited (LG Corporation)
• Inventors: Gadawski, Thomas J.
• Primary Examiner(s): Ruddock, Ula C.
• Assistant Examiner(s): Parsons, Thomas H.
• Application Number:
  US12/861,375
• Publication Number:
  US 20120045683A1
• Time in Patent Office: 1,590 Days
• Field of Search: 429/120, 429/436, 429/437, 429/458, 429/459
• US Class Current: 429/120
• CPC Class Codes: F28F 3/12 Elements constructed in the shape of a hollow panel, e.g. with channels F28D1/02, F28D1/03 take precedence
• CPC Class Codes: F28F 9/0243 Header boxes having a circular cross-section
• CPC Class Codes: F28F 9/0275 with multiple branch pipes
• CPC Class Codes: H01M 10/0525 Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
• CPC Class Codes: H01M 10/613 Cooling or keeping cold
• CPC Class Codes: H01M 10/625 Vehicles
• CPC Class Codes: H01M 10/6552 Closed pipes transferring heat by thermal conductivity or phase transition, e.g. heat pipes
• CPC Class Codes: H01M 10/6555 arranged between the cells
• CPC Class Codes: Y02E 60/10 Energy storage using batteries

Abstract

A battery system and a manifold assembly therein are provided. The assembly includes a manifold member having a tubular wall with an inner surface defining a central aperture that extends from the first end to the second end. The tubular wall further includes apertures extending therethrough. The manifold member further includes tubular port members disposed over the apertures, and a sealing member disposed on the inner surface proximate to the first end, and a male connecting portion extending from the second end. The assembly further includes a connecting fitting having a tubular coupling portion, an abutment ring, and a tubular body. The tubular coupling portion is removably coupled to the first end of the manifold member within the central aperture such that the sealing member contacts an outer surface of the tubular coupling portion and the abutment ring abuts against the first end of the manifold member.

Claims

1. A manifold assembly, comprising:

a manifold member having a plastic tubular wall with a first end and a second end, the plastic tubular wall further having an inner surface defining a first central aperture that extends from the first end to the second end, the plastic tubular wall further having a plurality of apertures extending therethrough, the manifold member further having a plurality of tubular port members disposed on the tubular wall over the plurality of apertures, the manifold member further having a first elastomer sealing member disposed on the inner surface of the plastic tubular wall and extending inwardly from the inner surface into the first central aperture, the first elastomer sealing member being further disposed proximate to the first end, and a male connecting portion extending from the second end;

a connecting fitting having a tubular coupling portion, an abutment ring, and a tubular body, the abutment ring being disposed on and around an outer surface of the tubular coupling portion a predetermined distance from an end of the tubular coupling portion, the tubular coupling portion configured to be removably coupled to the first end of the manifold member within the first central aperture such that the first elastomer sealing member of the manifold member contacts the outer surface of the tubular coupling portion and the abutment ring abuts against the first end of the manifold member; and

a retaining member configured to removably hold the connecting fitting on the first end of the manifold member, the retaining member having a ring-shaped portion, first and second finger portions, and at least first and second tabs, the first and second finger portions extending in a first direction from the ring-shaped portion, the ring-shaped portion having a second central aperture extending therethrough, the first and second tabs extending inwardly from the ring-shaped portion into the second central aperture, the tubular body of the connecting fitting being received through the second central aperture of the ring-shaped portion, a diameter of the second central aperture being less than a diameter of the abutment ring.

2. The manifold assembly of claim 1, wherein the tubular body of the connecting fitting is an arcuate-shaped tubular body.

3. The manifold assembly of claim 2, wherein the arcuate-shaped tubular body has a 90 degree bend therein.

4. The manifold assembly of claim 1, wherein the tubular body of the connecting fitting has first and second circumferentially disposed ledges extending outwardly from an outer surface of the tubular body.

5. The manifold assembly of claim 1 wherein the retaining member is configured to be slidably disposed on the tubular body of the connecting fitting and against the abutment ring such that the first and second finger portions extend from the ring-shaped portion past the abutment ring in the first direction with the abutment ring being disposed between the first and second finger portions, and first and second tabs on the first and second finger portions, respectively, are configured to engage first and second notches, respectively, in the plastic tubular wall to removably hold the connecting fitting against the plastic tubular wall.

6. The manifold assembly of claim 1, further comprising an end cap configured to be removably coupled to the male connecting portion of the manifold member.

7. The manifold assembly of claim 6, wherein the end cap comprises:

a circular-shaped body having an inner surface defining an aperture that extends into the circular-shaped body but not completely through the circular-shaped body;

a second sealing member disposed on at least a portion of the inner surface of the circular-shaped body; and

first and second finger portions extending in a first direction from the circular-shaped body configured to removably engage first and second notches, respectively, in the plastic tubular wall of the manifold member, and the inner surface of the circular-shaped body is configured to receive the male connecting portion of the manifold member therein, and the second sealing member configured to contact an outer surface of the male connecting portion.

8. The manifold assembly of claim 1, wherein the plastic is at least one of polyethylene and polypropylene.

9. The manifold assembly of claim 1, wherein the plurality of tubular port members of the manifold member are constructed of an elastomer.

10. The manifold assembly of claim 9, wherein the elastomer is at least one of styrene, ethylene, butylene, propylene, and diene.

11. The manifold assembly of claim 1, wherein the connecting fitting is constructed of plastic.

12. The manifold assembly of claim 1, wherein an outer diameter of the tubular coupling portion is greater than an outer diameter of the tubular body, and an inner diameter of the tubular coupling portion is substantially equal to an inner diameter of the tubular body.

13. The manifold assembly of claim 1, wherein the tubular coupling portion, the abutment ring, and the tubular body of the connecting fitting comprise a unitary body.

14. A battery system, comprising:

a plurality of battery cells and a plurality of heat exchangers disposed adjacent to the plurality of battery cells;

a manifold assembly having a manifold member and a connecting fitting, the manifold member fluidly communicating with the plurality of heat exchangers;

the manifold member having a plastic tubular wall with a first end and a second end, the plastic tubular wall further having an inner surface defining a first central aperture that extends from the first end to the second end, the plastic tubular wall further having a plurality of apertures extending therethrough, the manifold member further having a plurality of tubular port members disposed on the plastic tubular wall over the plurality of apertures, the manifold member further having a first elastomer sealing member disposed on the inner surface of the plastic tubular wall and extending inwardly from the inner surface into the first central aperture, the first elastomer sealing member being further disposed proximate to the first end, and a male connecting portion extending from the second end;

the connecting fitting having a tubular coupling portion, an abutment ring, and a tubular body, the abutment ring being disposed on and around an outer surface of the tubular coupling portion a predetermined distance from an end of the tubular coupling portion, the tubular coupling portion configured to be removably coupled to the first end of the manifold member within the first central aperture such that the first elastomer sealing member of the manifold member contacts the outer surface of the tubular coupling portion and the abutment ring abuts against the first end of the manifold member;

a retaining member configured to removably hold the connecting fitting on the first end of the manifold member, the retaining member having a ring-shaped member, first and second finger portions, and at least first and second tabs, the first and second finger portions extending in a first direction from the ring-shaped member, the ring-shaped member having a second central aperture extending therethrough, the first and second tabs extending inwardly from the ring-shaped member into the second central aperture, the tubular body of the connecting fitting being received through the second central aperture of the ring-shaped member, a diameter of the second central aperture being less than a diameter of the abutment ring; and

the plurality of tubular port members of the manifold member being coupled to the plurality of heat exchangers of the plurality of battery cell assemblies.

15. The battery system of claim 14, wherein the tubular body of the connecting fitting is an arcuate-shaped tubular body.

16. The battery system of claim 15, wherein the arcuate-shaped tubular body of the connecting fitting has a 90 degree bend therein.

17. The battery system of claim 14, wherein the tubular body of the connecting fitting has first and second circumferentially disposed ledges extending outwardly from an outer surface of the tubular body.

18. The battery system of claim 14, wherein the retaining member is configured to be slidably disposed on the tubular body of the connecting fitting and against the abutment ring such that the first and second finger portions extend from the ring-shaped member past the abutment ring in the first direction with the abutment ring being disposed between the first and second finger portions, and first and second tabs on the first and second finger portions, respectively, are configured to engage first and second notches, respectively, in the plastic tubular wall to removably hold the connecting fitting against the plastic tubular wall.

19. The battery system of claim 14, further comprising an end cap configured to be removably coupled to the male connecting portion of the manifold member.

20. The battery system of claim 14, wherein an outer diameter of the tubular coupling portion is greater than an outer diameter of the tubular body, and an inner diameter of the tubular coupling portion is substantially equal to an inner diameter of the tubular body.

21. A manifold assembly, comprising:

a manifold member having a plastic tubular wall with a first end and a second end, the plastic tubular wall further having an inner surface defining a first central aperture that extends from the first end to the second end, the plastic tubular wall further having a plurality of apertures extending therethrough, the manifold member further having a plurality of tubular port members disposed on the plastic tubular wall over the plurality of apertures, the manifold member further having a first elastomer sealing member disposed on the inner surface of the plastic tubular wall and extending inwardly from the inner surface into the first central aperture, the first elastomer member being further disposed proximate to the first end, and a male connecting portion extending from the second end; and

a connecting fitting having a tubular coupling portion, an abutment ring, and a tubular body, the abutment ring being disposed on and around an outer surface of the tubular coupling portion a predetermined distance from an end of the tubular coupling portion, the tubular coupling portion configured to be removably coupled to the first end of the manifold member within the first central aperture such that the first elastomer sealing member of the manifold member contacts the outer surface of the tubular coupling portion and the abutment ring abuts against the first end of the manifold member, an outer diameter of the tubular coupling portion being greater than an outer diameter of the tubular body, and an inner diameter of the tubular coupling portion is substantially equal to an inner diameter of the tubular body.

22. The manifold assembly of claim 21, wherein the plastic tubular wall is constructed of polyethylene.