Valve assembly for a battery cover

Patent metadata

Field	Value
Publication number	US-11289767-B2
Application number	US-201716471277-A
Country	US
Kind code	B2
Filing date	Dec 21, 2017
Priority date	Dec 22, 2016
Publication date	Mar 29, 2022
Grant date	Mar 29, 2022

Abstract

A valve assembly for a battery cover is provided. The valve assembly may advantageously allow for testing prior to installation on a battery cover. A battery is also provided.

First claim

The invention claimed is:

1. A valve assembly for a battery cover, the valve assembly comprising:
a valve cover having a base with an aperture having a first radius in fluid communication with an internal chamber defined by a cylindrical projection coupled to the base, the cylindrical projection having a second internal radius and a third internal radius, wherein the first radius is smaller than the second radius, which is smaller than the third radius;
a valve provided in the internal chamber; and
a valve holder provided in the internal chamber in a region of the internal chamber having the third internal radius, the valve holder having a base, a cylindrical projection extending from the base, and a side cutout provided in both the cylindrical projection and the base.

2. The valve assembly of claim 1 , wherein the base features a circumferential depression.

3. The valve assembly of claim 2 , wherein the aperture is provided in the center of the circumferential depression.

4. The valve assembly of claim 1 , wherein the valve assembly may be tested prior to installation on a battery cover.

5. A battery cover having the valve assembly of claim 1 .

6. A battery having the battery cover of claim 5 .

7. A battery comprising:
a housing having battery elements;
a battery cover on the housing having a recess sized to accept a valve assembly;
a valve assembly having a valve cover, a valve, and a valve holder;
wherein the valve cover features a base having a cylindrical projection and an aperture, the aperture having a first radius in fluid communication with an internal chamber defined by the cylindrical projection, the cylindrical projection having a second internal radius and a third internal radius;
wherein the valve holder has a base, a cylindrical projection extending from a base, and a side cutout provided in both the cylindrical projection and the base; and
wherein the valve holder and the valve are provided within the internal chamber.

8. The battery of claim 7 , wherein the first radius is smaller than the second radius, which is smaller than the third radius.

9. The battery of claim 7 , wherein the valve holder is provided in a section of the internal chamber having the third radius.

10. The battery of claim 9 , wherein the valve is provided between the valve holder and the cylindrical projection.

11. The battery of claim 10 , wherein the valve is positioned between the valve holder and the cylindrical projection in the internal chamber in an area having the third radius.

12. The battery of claim 11 , wherein a portion of the valve extends into an area in the internal chamber having a second radius.

13. The battery of claim 7 , wherein the base has a circumferential depression.

14. The battery of claim 13 , wherein the aperture is approximately in the center of the circumferential depression.

Assignees

• Cps Tech Holdings Llc

Inventors

• Elison Nicholas E
• Trester Dale B
• Varatharajah Arunraj

Classifications

• H01M50/147

  Lids or covers · CPC title

• H01M50/30 Primary

  Arrangements for facilitating escape of gases · CPC title

• Y02E60/10

  Energy storage using batteries · CPC title