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US 2026/0196578 A1Published application
Improved communication device for battery packs
AssigneeDukosi Limited
InventorsJoel SYLVESTER, Daniel DECLE COLIN
Life of this patent
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AssigneeDukosi Limited
InventorsJoel SYLVESTER, Daniel DECLE COLIN
Estimating the term…
An assembly for use with a battery pack comprising a plurality of battery cells is provided. The assembly enables communication between an electronic device and a radio transceiver located remotely from the electronic device. The assembly comprises: a module antenna operatively connected to the electronic device, the module antenna comprising a first coil and a second coil of an electrical conductor; a bus antenna configured in use to provide a communication channel for the radio transceiver, the bus antenna comprising two transmission lines, each one of the transmission lines being spaced apart from and positioned adjacent to a different one of the first and second coils, to enable near-field coupling between the module antenna and the bus antenna when a transmission signal is input into either the module antenna or the bus antenna; and wherein the arrangement of the two transmission lines relative to the coils is such that an induced current in each transmission line caused by the coupling of each transmission line with its adjacent coil, is substantially the same in magnitude.
An assembly for use with a battery pack comprising a plurality of battery cells, the assembly suitable for enabling communication between an electronic device and a radio transceiver located remotely from the electronic device, the assembly comprising:
The assembly of any preceding claim, wherein the first and second coils are configured to share a same longitudinal axis.
The assembly of any preceding claim, wherein the first and second coils comprise at least one of the following characteristics:
The assembly of any preceding claim, wherein the bus antenna transmission lines comprise at least one of the following characteristics:
The assembly of any preceding claim, wherein each one of the bus antenna transmission lines is located equidistant relative to a different one of the coils of the module antenna.
The assembly of any preceding claim, wherein the first and second coils are wound along a same direction of rotation.
The assembly of any preceding claim, wherein the two transmission lines of the bus antenna are configured as a balanced circuit, such that an electrical signal propagating in a first one of the two transmission lines is π radians out of phase with respect to an electrical signal propagating in a second one of the transmission lines.
The assembly of any preceding claim, wherein each transmission line of the bus antenna is connected at one end to a termination resistor.
The assembly of any preceding claim, wherein a distance of separation between each one of the bus antenna transmission lines and its adjacent coil is selected to achieve a coupling strength greater than or equal to −50 dB, and less than or equal to −10 dB.
The assembly of any preceding claim, wherein each one of the bus antenna transmission lines and its adjacent coil are separated by a dielectric insulating material.
The assembly of any preceding claim, wherein the first and second coils are air core coils.
The assembly of any preceding claim, wherein the first and second coils are wound around a material.
The assembly of any preceding claim, comprising a printed circuit board “PCB” comprising the electronic device, and wherein the PCB comprises the module antenna.
The assembly of any preceding claim, wherein the first and second coils are connected to a capacitor.
A battery cell comprising the assembly of any preceding claim.
Dependencies are inferred from the claim text.