Gas vent duct

Patent metadata

Field	Value
Publication number	US-2020235359-A1
Application number	US-202016737454-A
Country	US
Kind code	A1
Filing date	Jan 8, 2020
Priority date	Jan 21, 2019
Publication date	Jul 23, 2020
Grant date	—

Abstract

A gas vent duct includes a lower case, an upper case, and a valve element. The valve element includes a shaft at its upper part and pivots on the shaft from a blocking position so that the gas vent pathway communicates with the outside of the vehicle compartment. The blocking position is a position in which the valve element blocks the ventilation pathway. The lower case includes a support supporting the shaft so that the valve element is pivotable. The support covers the shaft from above. A recess is defined by a portion of the inner surface of the upper case that is located above the support, the recess being recessed upward. When the recess and the support are seen from above, at least a part of the support is located within the recess.

First claim

What is claimed is:

1 . A gas vent duct having a ventilation pathway defined therein so that the gas vent duct allows a gas vent pathway in an electric storage device to communicate with outside of a vehicle compartment, the gas vent duct comprising:
a lower case; an upper case covering the lower case from above the lower case; and a valve element disposed in the lower case so that the valve element restricts a flow of air from the outside of the vehicle compartment toward the gas vent pathway, wherein the valve element includes a shaft at an upper part thereof and pivots on the shaft from a blocking position so that the gas vent pathway communicates with the outside of the vehicle compartment, the blocking position being a position in which the valve element blocks the ventilation pathway, the lower case includes a support supporting the shaft so that the valve element is pivotable, the support covers the shaft from above, a recess is defined by a portion of an inner surface of the upper case that is located above the support, the recess being recessed upward, and when the recess and the support are seen from above, at least a part of the support is located within the recess.

2 . The gas vent duct according to claim 1 , further comprising a partition wall having an opening and partitioning the ventilation pathway into a first pathway and a second pathway, the first pathway communicating with the gas vent pathway, the second pathway communicating with the outside of the vehicle compartment, wherein
the partition wall is inclined downward in a direction from the first pathway toward the second pathway, and a drainage channel is defined by a portion of the partition wall that is located below a lower end of the support and above the opening.

3 . The gas vent duct according to claim 2 , wherein
the electric storage device is mounted on a vehicle, and the drainage channel extends in a front-back direction of the vehicle.

Assignees

• Toyota Motor Co Ltd

Inventors

• Hayashi Tsuyoshi
• Takahashi Isao
• Adachi Kentaro

Classifications

• H01M50/358

  External gas exhaust passages located on the battery cover or case · CPC title

• H01M50/317 Primary

  Re-sealable arrangements · CPC title

• H01M2220/20

  Batteries in motive systems, e.g. vehicle, ship, plane · CPC title

• H01M50/30 Primary

  Arrangements for facilitating escape of gases · CPC title

• B60K1/04 Primary

  of the electric storage means for propulsion · CPC title