Housing with integrated spark arrestor

Patent metadata

Field	Value
Publication number	US-11942653-B2
Application number	US-202117192283-A
Country	US
Kind code	B2
Filing date	Mar 4, 2021
Priority date	Mar 4, 2020
Publication date	Mar 26, 2024
Grant date	Mar 26, 2024

Abstract

A battery housing has a plurality of housing sidewalls defining an enclosure, where a first housing sidewall of the plurality of housing sidewalls defines a plurality of openings cumulatively defining a valve opening. The housing defines a valve coupling structure around the valve opening.

First claim

What is claimed is:

1. A battery housing comprising:
a plurality of housing sidewalls defining an enclosure, wherein a first housing sidewall of the plurality of housing sidewalls defines a plurality of openings cumulatively defining a valve opening, wherein the first housing sidewall is constructed of metal; and
the first housing sidewall defining a valve coupling structure around the valve opening.

2. The battery housing of claim 1 , wherein the valve coupling structure comprises a plurality of bayonet connector openings around the valve opening.

3. The battery housing of claim 1 , wherein the valve coupling structure comprises an opening extending entirely through a thickness of the first housing sidewall.

4. The battery housing of claim 1 , wherein the valve coupling structure extends no more than partially through a thickness of the first housing sidewall.

5. The battery housing of claim 1 , wherein the first housing sidewall has a first face within the enclosure and a second face opposite the first face, wherein the second face is outside of the enclosure, and the valve opening is positioned between the first face and the valve coupling structure.

6. The battery housing of claim 1 , wherein the first housing sidewall has a first face within the enclosure and a second face opposite the first face, wherein the second face is outside of the enclosure, and each of the valve opening and the valve coupling structure extend through the first face and the second face.

7. The battery housing of claim 1 , wherein the valve coupling structure comprises a screw thread defined by the first housing sidewall around the valve opening.

8. The battery housing of claim 1 , wherein each of the plurality of openings have a maximum opening dimension of no more than 3 mm.

9. The battery housing of claim 1 , wherein the plurality of openings comprises at least 5 openings.

10. A vented system comprising:
a battery housing comprising a plurality of housing sidewalls defining an enclosure, wherein a first housing sidewall of the plurality of housing sidewalls defines a plurality of openings cumulatively defining a valve opening, and the first housing sidewall further defining a valve coupling structure around the valve opening;
a valve comprising:
a valve body having a mating structure coupled to the valve coupling structure and the valve body defining an airflow pathway from the valve opening to an outside environment, and
a film coupled to the valve body, wherein the film is disposed across the airflow pathway; and

a seal compressed between the first housing sidewall and the valve body around the valve opening.

11. The vented system of claim 10 , wherein the seal is disposed around the mating structure.

12. The vented system of claim 10 , wherein the valve coupling structure and the mating structure define a threaded connection.

13. The vented system of claim 10 , wherein the valve coupling structure and the mating structure define a bayonet connection.

14. The vented system of claim 10 , wherein the valve body comprises a puncturing member extending towards the film.

15. The vented system of claim 10 , wherein each of the plurality of openings have a maximum opening dimension of no more than 3 mm.

16. The vented system of claim 10 , wherein the valve coupling structure comprises a screw thread defined by the first housing sidewall around the valve opening.

17. The vented system of claim 10 , wherein the first housing sidewall has a first face within the enclosure and a second face opposite the first face, wherein the second face is outside of the enclosure, and the valve opening is positioned between the first face and the valve coupling structure.

18. The vented system of claim 10 , wherein the film is ePTFE.

Assignees

• Donaldson Co Inc

Inventors

• Rahmathullah Aflal
• Dotzler Daniel J
• Moorman James P
• Sanders Jacob L

Classifications

• H01M50/383 Primary

  Flame arresting or ignition-preventing means · CPC title

• H01M50/325 Primary

  comprising deformable valve members, e.g. elastic or flexible valve members · CPC title

• H01M50/394

  Gas-pervious parts or elements · CPC title

• Y02E60/10

  Energy storage using batteries · CPC title