Battery pack
AssigneeLenovo (Singapore) Pte. Ltd.
InventorsShigefumi Odaohhara, Hiromitsu Yamaguchi
Life of this patent
Estimating the term…
Abstract
A battery pack that can avoid an abnormal condition caused by heat generation associated with water adhesion to a connector part and a function stopping method of the battery pack are provided. A battery controller determines an abnormality and executes an operation of interrupting a charge/discharge path for a battery set formed by a charge/discharge circuit, when a detected temperature of a connector is equal to or more than a first threshold, and also a discharge current is equal to or more than a second threshold and/or a difference between the detected temperature of the connector and a detected temperature of another part (a discharge protection switch, a charge protection switch, and the battery set) is equal to or more than a third threshold.
Claims19
An apparatus comprising:
- one or more elements of the apparatus comprising at least one processor, consumes power;
- a housing that houses the one or more dements comprising at least one processor;
- a battery pack for supplying power, the battery pack having a connector that “connects the battery pack to the one or more elements comprising at least one processor, the battery pack further comprising:
- a charge and discharge circuit that forms a charge and discharge path;
- a first temperature element that senses heat generated by the connector;
- a second temperature element that senses a temperature of another part of the battery pack;
- and
- a controller that disables the battery pack responsive to determining heat generation at the connector;
- wherein the determining comprises;
- detecting heat at the first temperature element;
- detecting a heat at the second temperature element;
- and
- wherein a difference in the heat detected at the first temperature element and the heat detected at the second temperature element exceeds a predetermined threshold.
A method comprising:
- determining a heat generation at a connector of a battery pack using a first temperature element that senses heat generated by the connector of the battery pack and a second temperature element that senses a temperature of another part of the battery pack;
- and
- disabling the battery pack responsive to determining the heat generation at the connector of a battery pack;
- wherein the determining comprises;
- detecting heat at the first temperature element;
- detecting a heat at the second temperature element;
- and
- wherein a difference in the heat detected at the first temperature element and the heat detected at the second temperature element exceeds a predetermined threshold.
A battery pack comprising:
- a connector that connects the battery pack to the one or more elements of the apparatus comprising at least one processor, requiring power;
- a charge and discharge circuit that forms a charge and discharge path;
- a first temperature element that senses heat generated by the connector;
- a second temperature element that senses a temperature of another part of the battery pack;
- and
- a controller that disables the battery pack responsive to determining characteristic heat generation at the connector;
- wherein the determining comprises;
- detecting a heat at the first temperature element;
- detecting a heat at the second temperature element;
- and
- wherein a difference in the heat detected at the first temperature element and the heat detected at the second temperature element exceeds a predetermined threshold.
Dependencies are inferred from the claim text.