BATTERY PACK

• US 20140065448A1
• Filed: 03/01/2013
• Published: 03/06/2014
• Est. Priority Date: 09/06/2012
• Status: Active Grant

• Current Assignee: Samsung SDI Company Limited
• Original Assignee: Samsung SDI Company Limited
• Inventors: Ahn, Byung-Kook, Kang, Il-Oh
• Granted Patent: US 9,537,181 B2
• Time in Patent Office: Days
• US Class Current: 429/7
• CPC Class Codes: H01M 10/4257 Smart batteries, e.g. electronic circuits inside the housing of the cells or batteries
• CPC Class Codes: H01M 10/486 for measuring temperature
• CPC Class Codes: H01M 2200/00 Safety devices for primary or secondary batteries
• CPC Class Codes: H01M 50/105 Pouches or flexible bags
• CPC Class Codes: Y02E 60/10 Energy storage using batteries

Abstract

A battery pack is disclosed. The battery pack includes a battery cell, a protection circuit module, and a temperature sensor, which are each held by a case. The case includes a dedicated space for the temperature sensor and a fixing element to fix the temperature sensor in the dedicated space.

Claims

1. A battery pack comprising:

a battery cell;

a protection circuit module electrically connected to the battery cell;

a temperature sensor configured to measure a temperature of the battery cell; and

a case holding the battery cell and the protective circuit module, wherein the case comprises a particular space for the temperature sensor and a fixing element configured to fix the temperature sensor in the particular space.

2. The battery pack of claim 1, wherein the protection circuit module is located between first and second battery cells.

3. The battery pack of claim 1, wherein the protection circuit module is located substantially in the middle of the case.

4. The battery pack of claim 1, wherein the protection circuit module comprises a substrate and a protection device mounted on the substrate, wherein the substrate comprises guide holes extending through the substrate, and wherein the case comprises guide pins that protrude into the guide holes.

5. The battery pack of claim 1, wherein the case comprises a supporting element that supports the protective circuit module.

6. The battery pack of claim 1, wherein the temperature sensor comprises a thermistor.

7. The battery pack of claim 6, wherein the thermistor is electrically connected to the protective circuit module by a cable, wherein the fixing element comprises a hook fixing the cable to the case.

8. The battery pack of claim 1, wherein the case comprises a partition defining the particular space for the temperature sensor.

9. The battery pack of claim 1, wherein the temperature sensor is arranged so as to be substantially parallel with the protective circuit module, and is located adjacent to the protection circuit module.

10. The battery pack of claim 1, wherein the temperature sensor is disposed near a electrode tab of the battery cell.

11. A battery pack comprising:

a battery cell;

a protection circuit module electrically connected to the battery cell;

a temperature sensor configured to measure a temperature of the battery cell; and

a case holding the battery cell and the protective circuit module, wherein the case comprises;

a partition defining a particular space for the temperature sensor to be held, and

a fixing element configured to fix the temperature sensor in the particular space.

12. A battery pack comprising:

a battery cell;

a protection circuit module electrically connected to the battery cell;

a temperature sensor configured to measure a temperature of the battery cell and to transmit an electrical signal based on the temperature to the protective circuit module; and

a case defining locations for the battery cell and the protective circuit module, wherein the case comprises;

a frame comprising an outer wall that extending in a thickness direction and substantially surrounding the battery cell and the protective circuit module, and

a lower rib formed perpendicular to the outer wall, wherein a particular space for the temperature sensor and a fixing element configured to fix the temperature sensor to the lower rib are formed on the lower rib.

13. The battery pack of claim 12, wherein the temperature sensor comprises a thermistor.

14. The battery pack of claim 12, wherein the thermistor is electrically connected to the protective circuit module through a cable, and wherein the fixing element comprises a hook fixing the cable to the case.

15. The battery pack of claim 12, wherein the lower rib is located substantially in a middle of the case.

16. The battery pack of claim 12, wherein the protection circuit module comprises a substrate and a protection device mounted on the substrate, wherein the substrate comprises guide holes extending through the substrate, and wherein the case comprises guide pins that protrude into the guide holes.

17. The battery pack of claim 16, wherein the protection device is located on a side of the substrate facing the lower rib.

18. The battery pack of claim 12, wherein the lower rib comprises a supporting element that supports the protective circuit module.

19. The battery pack of claim 12, wherein the case comprises a pair of partitions that are separated by a distance corresponding to a width of the protective circuit module, and wherein the protective module is located between the pair of partitions.

20. The battery pack of claim 12, wherein the temperature sensor is arranged so as to be substantially parallel with the protective circuit module, and is located adjacent to the protection circuit module.