Apparatus for assigning identification information to slave battery management units

Patent metadata

Field	Value
Publication number	US-11223072-B2
Application number	US-201816481641-A
Country	US
Kind code	B2
Filing date	Sep 5, 2018
Priority date	Sep 25, 2017
Publication date	Jan 11, 2022
Grant date	Jan 11, 2022

Abstract

Provided is an apparatus for assigning identification information to a plurality of slave battery management units. The apparatus assigns different identification information to a plurality of slave battery management units. The apparatus includes: a casing jig configured to at least partially cover the plurality of slave battery management units; a wireless communication unit including a plurality of antennas disposed so as to correspond one-to-one to the plurality of slave battery management units; and a controller configured to control the wireless communication unit so as to transmit a wireless signal including different identification information to the plurality of slave battery management units.

First claim

What is claimed is:

1. An apparatus for assigning identification information to a plurality of slave battery management units electrically each connected to a respective one of a plurality of battery modules mounted on a base plate of a battery pack, the apparatus comprising:
a casing jig configured to at least partially cover the plurality of slave battery management units together with the base plate;
a wireless communication unit including a plurality of antennas disposed in a region of the casing jig facing the base plate to each correspond to a respective one of the plurality of slave battery management units;
a power supply unit configured to selectively supply operating power to at least one of the plurality of slave battery management units to selectively activate respective antennas of the plurality of slave battery management units, and
a controller electrically connected to the wireless communication unit and the power supply unit,
wherein the controller is configured to select at least one of the plurality of antennas included in the wireless communication unit and to transmit to the wireless communication unit a first control signal including identification information related to the at least one selected antenna,
wherein, when transmitting the first control signal, the controller is further configured to transmit, to the power supply unit, a second control signal related to the first control signal,
wherein the wireless communication unit is configured to output a wireless signal indicating the identification information through the at least one selected antenna associated with the identification information in response to the first control signal, and
wherein the power supply unit is further configured to selectively supply the operating power to a respective one of the slave battery management unit corresponding to the at least one selected antenna among the plurality of slave battery management units, in response to the second control signal.

2. The apparatus of claim 1 , wherein the controller is further configured to select two or more of the plurality of antennas at the same time, or to select the plurality of antennas one by one in a predetermined order.

3. The apparatus of claim 1 , wherein the wireless signal has a signal strength in a predetermined range.

4. The apparatus of claim 1 , wherein the casing jig comprises:
a supporting member at least partially made of a metallic material and defining an outer surface of the casing jig so that the plurality of antennas are disposed within the casing jig; and
an electromagnetic wave absorbing member coupled to at least a part of an inner surface of the supporting member.

5. The apparatus of claim 1 , wherein the controller comprises a memory in which a plurality of reference positions and a plurality of pieces of identification information mapped one-to-one to the plurality of reference positions are stored, and
the plurality of reference positions indicate positions at which the plurality of antennas are disposed in the casing jig, respectively.

6. The apparatus of claim 5 , wherein the controller is further configured to select a first antenna and a second antenna among the plurality of antennas at the same time with reference to the plurality of reference positions stored in the memory, and wherein a distance between a first reference position corresponding to the first antenna and a second reference position corresponding to the second antenna is equal to or greater than a predetermined threshold distance.

Assignees

• Lg Chemical Ltd

Inventors

• HWANG Ji-Won
• Choi Yean-Sik
• Kim Ji-Eun
• Sung Chang-Hyun
• Lee Sang-Hoon

Classifications

• H01M10/482

  for several batteries or cells simultaneously or sequentially · CPC title

• H01M50/276

  Inorganic material · CPC title

• H01M50/204

  Racks, modules or packs for multiple batteries or multiple cells · CPC title

• Y02E60/10

  Energy storage using batteries · CPC title

• H01M10/425 Primary

  Structural combination with electronic components, e.g. electronic circuits integrated to the outside of the casing (printed circuits H05K1/00) · CPC title