Battery pack

• US 9,246,146 B2
• Filed: 11/10/2010
• Issued: 01/26/2016
• Est. Priority Date: 06/04/2010
• Status: Active Grant

• Current Assignee: Robert Bosch GmbH, Samsung SDI Company Limited
• Original Assignee: Robert Bosch GmbH, Samsung SDI Company Limited
• Inventors: Kim, Myeongcheol, Kim, Taeyong, Lee, Hyunye, Jung, Kangsik, Park, Shidong
• Primary Examiner(s): Eggerding, Alix
• Application Number:
  US12/926,334
• Publication Number:
  US 20110300424A1
• Time in Patent Office: 1,903 Days
• Field of Search: None
• US Class Current: 1/1
• CPC Class Codes: H01M 50/209 adapted for prismatic or rectangular cells H01M50/216 takes precedence
• CPC Class Codes: H01M 50/271 Lids or covers for the racks or secondary casings
• CPC Class Codes: H01M 50/296 characterised by terminals of battery packs terminals of batteries H01M50/543
• CPC Class Codes: H01M 50/50 Current conducting connections for cells or batteries
• CPC Class Codes: H01M 50/55 on the same side of the cell
• CPC Class Codes: H01M 50/553 Terminals adapted for prismatic, pouch or rectangular cells
• CPC Class Codes: Y02E 60/10 Energy storage using batteries

Abstract

A battery pack including a plurality of battery cells; a housing accommodating the plurality of battery cells; a connector coupled to the housing, at least a portion of the connector being exposed outside of the housing; and a sealing member coupled to the connector, the sealing member surrounding the exposed portion of the connector.

Claims

1. A battery pack, comprising:

a plurality of battery cells;

a housing accommodating the plurality of battery cells;

a connector coupled to the housing, at least a portion of the connector being exposed outside of the housing; and

a sealing member coupled to the connector, wherein the sealing member includes a substantially U-shaped body, the body surrounding the exposed portion of the connector, and the body being substantially coplanar with at least one side surface of the housing,

wherein;

an interior surface of the body is conformally formed to a shape of the connector,

the housing includes a case in which the battery cells are placed, a top cover covering an upper portion of the case; and

a side cover covering the side surface of the case,

the connector is coupled to the side cover, and

the sealing member is coupled to the side cover,

wherein the substantially U-shaped body includes three sides,

wherein two of the three sides are inserted into and fill gaps between the connector and the side cover of the housing, and a remaining side is substantially coplanar with the side cover of the housing,

wherein the connector includes;

a positive electrode terminal electrically connected to a positive electrode tab of the battery cells; and

a negative electrode terminal electrically connected to a negative electrode tab of the battery cells, and

wherein;

the sealing member includes;

the body surrounding an exterior side of the connector, the body being coupled to one side surface of the housing; and

a terminal cover covering the positive and negative electrode terminals of the connector, the terminal cover being coupled to a top surface of the housing, and

the terminal cover includes a protrusion part therein.

2. The battery pack as claimed in claim 1, wherein the sealing member includes rubber.

3. The battery pack as claimed in claim 1, wherein the sealing member includes a thread hole therein.

4. The battery pack as claimed in claim 3, wherein the connector includes a thread groove therein, the thread groove corresponding to the thread hole.

5. The battery pack as claimed in claim 1, further comprising an end plate closely coupling the battery cells to the case.

6. The battery pack as claimed in claim 1, wherein the case includes:

a bottom surface;

a pair of long side surfaces connected to the bottom surface, the pair of long side surfaces being substantially perpendicular to the bottom surface; and

a short side surface connected to the bottom surface and the long side surfaces, the short side surface being substantially perpendicular to the bottom surface.

7. The battery pack as claimed in claim 1, further comprising a circuit module between the battery cells and side cover, the circuit module being electrically connected to the connector.

8. The battery pack as claimed in claim 1, wherein the terminal cover has an opening part therein.

9. The battery pack as claimed in claim 1, wherein the body includes a protrusion groove detachably engagable with the protrusion part.

10. The battery pack as claimed in claim 1, wherein the terminal cover includes an opening groove therein.

11. A battery pack, comprising:

a plurality of battery cells;

a housing accommodating the plurality of battery cells;

a connector coupled to the housing, at least a portion of the connector being exposed outside of the housing; and

a sealing member coupled to the connector, wherein the sealing member includes a substantially U-shaped body, the body surrounding the exposed portion of the connector, and the body being substantially coplanar with at least one side surface of the housing,

wherein an interior surface of the body is conformally formed to a shape of the connector,

wherein the substantially U-shaped body includes three sides,

wherein two of the three sides are inserted into and fill gaps between the connector and the side cover of the housing, and a remaining side is substantially coplanar with the side cover of the housing,

wherein the connector includes;

a positive electrode terminal electrically connected to a positive electrode tab of the battery cells; and

a negative electrode terminal electrically connected to a negative electrode tab of the battery cells, and

wherein;

the sealing member includes;

the body surrounding an exterior side of the connector, the body being coupled to one side surface of the housing; and

a terminal cover covering the positive and negative electrode terminals of the connector, the terminal cover being coupled to a top surface of the housing, and

the terminal cover includes a protrusion part therein.