Battery pack discharging device and method for discharging a battery pack

• US 9,586,489 B2
• Filed: 07/26/2013
• Issued: 03/07/2017
• Est. Priority Date: 07/26/2013
• Status: Active Grant

• Current Assignee: LG Energy Solution Limited (LG Corporation)
• Original Assignee: LG Chem Limited (LG Corporation)
• Inventors: Klein, Martin J., Alamgir, Mohamed, McNeill, Daniel K., Nivelt, Gary
• Primary Examiner(s): Fureman, Jared
• Assistant Examiner(s): Inge, Joseph
• Application Number:
  US13/952,280
• Publication Number:
  US 20150028695A1
• Time in Patent Office: 1,320 Days
• Field of Search: 307/326, 320/127, 320/135
• US Class Current: 1/1
• CPC Class Codes: B60L 2240/545 Temperature
• CPC Class Codes: B60L 2240/549 Current
• CPC Class Codes: B60L 3/0046 relating to electric energy storage systems, e.g. batteries or capacitors
• CPC Class Codes: B60L 3/04 Cutting off the power supply under fault conditions protective devices and circuit arrangements in general H01H; H02H
• CPC Class Codes: B60L 50/00 Electric propulsion with power supplied within the vehicle with power supply from force of nature, e.g. sun or wind, B60L8/00; for monorail vehicles, suspension vehicles or rack railways B60L13/00
• CPC Class Codes: B60L 50/40 using propulsion power supplied by capacitors
• CPC Class Codes: B60L 50/64 Constructional details of batteries specially adapted for electric vehicles
• CPC Class Codes: B60L 58/21 having the same nominal voltage
• CPC Class Codes: B60L 58/26 by cooling
• CPC Class Codes: H01M 10/44 Methods for charging or discharging circuits for charging H02J7/00
• CPC Class Codes: H01M 2220/20 Batteries in motive systems, e.g. vehicle, ship, plane
• CPC Class Codes: H02J 7/0029 with safety or protection devices or circuits
• CPC Class Codes: Y02E 60/10 Energy storage using batteries
• CPC Class Codes: Y02T 10/70 Energy storage systems for electromobility, e.g. batteries

Abstract

A battery pack discharging device having a hand-held member and a docking device are provided. The hand-held member has a handle portion, first and second extension members, first and second conductive members, and a resistor. The resistor is disposed in the handle portion between the first and second conductive portions. The device further includes a docking device having a housing and first and second contact members. The first and second extension members are disposed in the first and second apertures, respectively, of the docking device such that the first and second conductive members contact the first and second contact members, respectively.

Claims

1. A battery pack discharging device, comprising:

a hand-held member having a handle portion, first and second extension members, first and second guide tabs, first and second conductive members and a resistor electrically coupled between the first and second conductive members, the handle portion and the first and second extension members extending from the handle portion in a first direction, the resistor being disposed in the handle portion, the first and second guide tabs extending from the handle portion in the first direction, the first and second guide tabs being disposed proximate to first and second sides, respectively, of the first extension member, the hand-held member having at least one aperture extending therethrough such that airflow through the aperture cools the resistor; and

a docking station having a housing and first and second contact members disposed in the housing, the housing having first and second apertures extending therethrough, the hand-held member configured to be at least partially disposed in the first and second apertures, respectively, of the housing such that the first and second conductive members contact the first and second contact members, respectively, for discharging a battery pack.

2. The battery pack discharging device of claim 1, wherein the battery pack is configured to output an electrical current through the first contact member, the first conductive member, the resistor, the second conductive member, and the second contact member to at least partially discharge the battery pack when the first and second conductive members contact the first and second contact members, respectively.

3. The battery pack discharging device of claim 1, wherein the first conductive member includes first and second conductive portions coupled together, the first conductive portion being electrically coupled to the resistor and extending from the resistor within the handle portion, the second conductive portion being disposed on the first extension member.

4. The battery pack discharging device of claim 3, wherein the second conductive member includes third and fourth conductive portions coupled together, the third conductive portion being electrically coupled to the resistor and extending from the resistor within the handle portion, the fourth conductive portion being disposed on the second extension member.

5. The battery pack discharging device of claim 4, wherein the first and second contact members are disposed in the housing proximate to the first and second apertures, respectively, the first and second contact members further configured to be electrically coupled to the battery pack;

and

the first and second extension members of the hand-held member configured to be disposed in the first and second apertures, respectively, of the housing of the docking device such that the second and fourth conductive portions contact the first and second contact members, respectively.

6. The battery pack discharging device of claim 1, further comprising third and fourth guide tabs extending from the handle portion in the first direction, the third and fourth guide tabs being disposed proximate to first and second sides, respectively, of the second extension member.

7. The battery pack discharging device of claim 1, wherein the hand-held member is constructed of an electrically non-conductive material.

8. A battery pack discharging device, comprising:

a hand-held member having a handle portion, first and second extension members, first, second, third, and fourth guide tabs, first and second conductive members, and a resistor;

the first and second extension members extending from the handle portion in a first direction;

the first and second guide tabs extending from the handle portion in the first direction, the first and second guide tabs being disposed proximate to first and second sides, respectively, of the first extension member, the third and fourth guide tabs extending from the handle portion in the first direction, the third and fourth guide tabs being disposed proximate to first and second sides, respectively, of the second extension member, the resistor being disposed in the handle portion and being electrically coupled between the first and second conductive members; and

a docking station having a housing and first and second contact members disposed in the housing, the housing having first and second apertures extending therethrough, the hand-held member configured to be at least partially disposed in the first and second apertures, respectively, of the housing such that the first and second conductive members contact the first and second contact members, respectively, for discharging a battery pack.

9. The battery pack discharging device of claim 8, wherein the hand-held member further having at least one aperture extending therethrough such that airflow through the aperture cools the resistor.

10. The battery pack discharging device of claim 8, wherein the battery pack is configured to output an electrical current through the first contact member, the first conductive member, the resistor, the second conductive member, and the second contact member to at least partially discharge the battery pack when the first and second conductive members contact the first and second contact members, respectively.