Battery pack
A battery pack includes a plurality of battery modules, a battery module of the plurality of batter modules including at least one cell and a control circuit configured to manage the at least one cell, a main controller configured to wirelessly communicate with the control circuit, and a plurality of structures corresponding to the plurality of battery modules, a structure of the plurality of structures is configured to adjust signal intensity of a radio signal transmitted to the main controller from the control circuit of the battery module, wherein the structure is further configured to vary a degree of adjusting signal intensity of the radio signal according to a position of the battery module.
1 . A battery pack comprising:
a plurality of battery modules, a battery module of the plurality of battery modules comprising at least one cell and a control circuit configured to manage the at least one cell;
a main controller configured to wirelessly communicate with the control circuit; and
a plurality of structures corresponding to the plurality of battery modules, a structure of the plurality of structures being configured to adjust signal intensity of a radio signal transmitted to the main controller from the control circuit of the battery module,
wherein the structure is further configured to vary a degree of adjusting signal intensity of the radio signal relative to noise according to a position of the battery module,
wherein the structure comprises a noise generator configured to generates a noise signal for application to the radio signal, an output power of the noise signal that is output by the noise generator is different from that of another noise signal of a corresponding noise generator of another structure of the plurality of structures such that a signal to noise ratio of the radio signal is indicative of the position or a connection order of the battery module among the plurality of battery modules within the battery pack.
2 . The battery pack as claimed in claim 1 , wherein the main controller is further configured to identify the position or the connection order of the battery module based on a received signal intensity of the radio signal received from the control circuit.
3 . A battery pack comprising:
a plurality of battery modules, each battery module of the plurlaity of battery modules comprising at least one cell and a control circuit configured to manage the at least one cell;
a main controller configured to wirelessly communicate with the control circuit of each battery module; and
a plurality of shield filters corresponding to the plurality of battery modules, each shield filter of the plurality of shield filters being configured to adjust a signal intensity of a radio signal transmitted from the control circuit of a corresponding battery module to the main controller,
wherein each shield filter is further configured to vary a degree of adjusting signal intensity of the radio signal according to a position or a connection order of the corresponding battery module, and
wherein each shield filter adjusts the signal intensity of the radio signal by at least one of reflection, scattering, diffraction, and absorption of electromagnetic waves.
4 . The battery pack as claimed in claim 3 , wherein:
each shield filter includes a substrate and a conductive material disposed on one surface of the substrate, and
the plurality of shield filters differ from each other in at least one of a surface shape, a component, and a thickness of the conductive material.
5 . The battery pack as claimed in claim 1 , wherein the structure comprises an antenna module connected to the control circuit.
6 . The battery pack as claimed in claim 5 , wherein at least one of a size, an area, a component, and a shape of an antenna pattern of the antenna module is different from one or more corresponding patterns of another antenna module of the another structure of the plurality of structures.
7 . A battery pack comprising:
a plurality of battery modules, a battery module of the plurality of batter modules comprising at least one cell and a control circuit configured to manage the at least one cell;
a main controller configured to wirelessly communicate with the control circuit; and
a plurality of signal generators respectively corresponding to the plurality of battery modules, each one of the plurality of signal generators comprising a voltage dividing circuit configured to generate a voltage signal having a voltage value that varies according to a position or a connection order of the battery module,
wherein the control circuit is further configured to acquire position identification information based on the voltage signal of the signal generator, and to transmit a radio signal comprising the position identification information to the main controller,
wherein resistances of the voltage dividing circuit of one of the plurality of signal generators is different from those of a corresponding voltage dividing circuit of another one of the signal generators.
8 . The battery pack as claimed in claim 7 , wherein the main controller is further configured to identify the position or the connection order of the battery module based on the position identification information detected from the radio signal.
9 . The battery pack as claimed in claim 8 , wherein each one of the signal generators further comprises an analog-to-digital converter for transmitting the voltage signal to the control circuit.