Aerosol Generation Device with Battery Venting System

Patent metadata

Field	Value
Publication number	US-2022285785-A1
Application number	US-202017632703-A
Country	US
Kind code	A1
Filing date	Aug 7, 2020
Priority date	Aug 8, 2019
Publication date	Sep 8, 2022
Grant date	—

Abstract

An aerosol generating device including: a housing having a mouth end and an opposing end, the opposing end having a vent hole; a battery within the housing, the battery having a vent point in an outer surface of the battery, the vent point arranged such that fluid is released preferentially from the vent point during degassing of the battery; and a fluid directing arrangement within the housing. The fluid directing arrangement is configured to define a fluid flow path from the vent point of the battery to the vent hole of the housing.

First claim

1 . An aerosol generating device comprising:
a housing comprising a mouth end and an opposing end, the opposing end comprising a vent hole; a battery within the housing, the battery comprising a vent point in an outer surface of the battery, the vent point arranged such that fluid is released from the vent point during degassing of the battery; and a fluid directing arrangement within the housing, the fluid directing arrangement configured to define a fluid flow path from the vent point of the battery to the vent hole of the housing.

2 . The aerosol generating device of claim 1 , wherein the vent point is positioned at one end of the battery and the fluid directing arrangement comprises an annular support positioned between said one end of the battery and the vent hole such that the fluid flow path is directed through the annular support from the vent point towards the vent hole.

3 . The aerosol generating device of claim 1 , wherein the vent point is positioned at one end of the battery, the device further comprising:
a vibrator element positioned adjacent to said one end of the battery; wherein the fluid directing arrangement comprises a vibrator element support which is configured to hold the vibrator element and direct the fluid flow path around the vibrator element from the vent point to the vent hole.

4 . The aerosol generating device of claim 1 , wherein the fluid directing arrangement further comprises:
a baffle positioned between a side surface of the battery and an adjacent inner surface of the housing to seal a space between the battery and the housing and restrict a fluid flow towards the mouth end of the housing.

5 . The aerosol generating device of claim 4 , wherein the baffle comprises a concave surface directed towards the vent hole in the housing such that a fluid flow towards the baffle is redirected in an opposing direction towards the vent hole.

6 . The aerosol generating device of claim 4 , wherein the fluid directing arrangement further comprises a deflector plane positioned adjacent to the vent point of the battery, the deflector plane configured to redirect a fluid towards the baffle.

7 . The aerosol generating device of claim 1 , further comprising a vibrator element positioned between a side surface of the battery and an adjacent inner surface of the housing.

8 . The aerosol generating device of claim 4 , further comprising a vibrator element positioned between a side surface of the battery and an adjacent inner surface of the housing, and wherein the baffle is a support for the vibrator element.

9 . The aerosol generating device of claim 1 , further comprising an absorbent pad.

10 . The aerosol generating device of claim 9 , wherein the absorbent pad is annular and positioned adjacent to the vent point of the battery.

11 . The aerosol generating device of claim 9 , wherein the fluid directing arrangement comprises an annular support and the absorbent pad is positioned within the annular support.

12 . The aerosol generating device of claim 1 , further comprising a sticker positioned over the vent hole on an outer surface of the housing, the sticker configured to be displaced to open the vent hole during degassing of the battery.

13 . The aerosol generating device of claim 1 , further comprising a cavity within the housing adjacent to the vent point configured to receive a fluid expelled from the battery during degassing.

14 . The aerosol generating device of claim 1 , further comprising a battery support frame which holds the battery, the battery support frame positioned across an internal volume of the housing so as to seal the battery in one portion of the internal volume of the housing.

15 . The aerosol generating device of claim 1 , wherein the vent hole comprises a supporting element arranged across the vent hole to prevent opposing edges of the vent hole from closing.

16 . A housing for an aerosol generating device, the housing comprising a mouth end, an opposing end comprising a vent hole; and a fluid directing arrangement within the housing,
wherein the fluid directing arrangement is configured to define a fluid flow path from the vent hole of the housing to a vent point in an outer surface of a battery when the battery is received within the housing, the vent point for releasing fluid during degassing of the battery.

Assignees

• Jt Int Sa

Inventors

• Hupkes Ernst
• Zominy Claude

Classifications

• H01M50/3425

  in the form of rupturable membranes or weakened parts, e.g. pierced with the aid of a sharp member · CPC title

• H01M50/394 Primary

  Gas-pervious parts or elements · CPC title

• H01M2220/30

  Batteries in portable systems, e.g. mobile phone, laptop · CPC title

• A24F40/40 Primary

  Constructional details, e.g. connection of cartridges and battery parts · CPC title

• H01M50/392

  with means for neutralising or absorbing electrolyte; with means for preventing leakage of electrolyte through vent holes · CPC title