Patent ID: 11876246
Assignee: KIDDE TECHNOLOGIES, INC.
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  G  Y | IPC G  H

Claim 3:
4. A lithium ion battery, comprising:
a body defining an interior in which a lithium ion battery cell is disposable;
a fire and/or overheated condition detector comprising a chamber defining a detection space, a temperature sensor proximate to the detection space, gas detection assemblies configured to detect gases through absorption in the detection space and a smoke detection assembly configured to detect particle scattering in the detection space to discriminate smoke particles from nuisance particles;
a shroud attached to the body and configured to direct gases, smoke particles and nuisance particles from the interior of the body toward the fire and/or overheated condition detector; and
a controller remote from the fire and/or overheated condition detector and configured to execute early fire and/or overheated condition detection while retaining nuisance discrimination based on wirelessly received readings of the temperature sensor, the gas detection assemblies and the smoke detection assembly,
each gas detection assembly comprises a light source at a first side of the detection space and a photodetector at a second side of the detection space, and
the smoke detection assembly comprises first and second light sources and a photodetector at a first end of the detection space and a mirror optically interposed between the first and second light source and the photodetector at a second end of the detection space.