Power and data transmission between explosion proof devices and intrinsically safe devices
AssigneeEaton Intelligent Power Limited
InventorsBenjamin Avery Freer, Stephan P. Iannce
Life of this patent
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Abstract
A system comprises an explosion proof device and an intrinsically safe device. The explosion proof device is coupled to a power supply. The intrinsically safe device includes a user interface. The explosion proof device is configured to induce inductive coupling with the intrinsically safe device. The inductive coupling between the explosion proof device and the intrinsically safe device enables the transfer of power from the explosion proof device to the user interface of the intrinsically safe device. The inductive coupling can additionally enable the transfer of data between the explosion proof device and the intrinsically safe device.
Claims28
A system comprising:
- an enclosure device coupled to a power supply;
- and
- an intrinsically safe interface device having a user interface, wherein the interface device lacks an independent power source, and
- wherein the enclosure device is configured to induce inductive coupling with the interface device and wherein the inductive coupling between the enclosure device and the interface device enables the transfer of power from the enclosure device to the interface device.
A system comprising:
- an explosion proof enclosure including a resonant transmitter circuit having a first inductor;
- an intrinsically safe device including a resonant receiver circuit having a second inductor, wherein the resonant transmitter circuit and the resonant receiver circuit are configured to be inductively coupled, wherein the intrinsically safe device lacks a power source;
- and
- wherein the resonant transmitter circuit is configured to transmit data to the inductively coupled receiver circuit.
A system comprising:
- an explosion proof enclosure having a hub;
- a plug configured to fit within the hub, the plug having a cavity containing at least a first inductor electrically coupled to a transmitter circuit housed within the explosion proof enclosure;
- an intrinsically safe device including a receiver circuit having a second inductor, wherein the transmitter circuit and the receiver circuit are configured to be inductively coupled and wherein the intrinsically safe device lacks a power source;
- and
- wherein the transmitter circuit is configured to transmit power and/or data to the inductively coupled receiver circuit.
A method comprising:
- powering a transmitter circuit in an explosion proof enclosure, the transmitter circuit having a first inductor configured to operate at a resonant frequency;
- inductively coupling the transmitter circuit to a receiver circuit of an intrinsically safe device, wherein the intrinsically safe device lacks an independent power source;
- and
- powering the intrinsically safe device via a voltage induced in the receiver circuit by the transmitter circuit.
Dependencies are inferred from the claim text.