Advanced instrument packaging for electronic energy meter
AssigneeABB Automation Inc.
InventorsPeter W. Heuell, Garry M. Loy, Russell C. Broome, Lars Anders Lindqvist
Life of this patent
Estimating the term…
Abstract
An electronic energy meter and its package is described in which the meter package has a reduced number of parts, and the main circuit board assembly has the metering electronics on board, thereby eliminating the need for flying leads and point-to-point wiring within the package. The energy meter includes a first enclosure portion, a circuit board assembly for performing metering functions, a partial terminal block, and a second enclosure portion. The first and second enclosure portions are mateable with each other to form a meter package, in which the circuit board assembly and partial terminal block are at least partially contained within the meter package.
Claims17
An energy meter, comprising:
- a first enclosure portion comprising a plurality of terminal block features;
- a circuit board assembly for performing metering functions and comprising a plurality of toroidal current sensors;
- a partial terminal block interlocking with the plurality of terminal block features to form voltage isolation between the plurality of toroidal current sensors and provide unrestricted access to the toroidal current sensors;
- a contact spring connecting the circuit board assembly and the partial terminal block;
- and
- a second enclosure portion, the first and second portions being mateable with each other to form a meter package, the circuit board assembly and partial terminal block at least partially contained within the meter package.
An energy meter, comprising:
- a first enclosure portion comprising a plurality of terminal block features;
- a circuit board assembly for performing metering functions and comprising a plurality of toroidal current sensors;
- a partial terminal block interlocking with the plurality of terminal block features to form voltage isolation between the plurality of toroidal current sensors and provide unrestricted access to the toroidal current sensors;
- a second enclosure portion, the first and second portions being mateable with each other to form a meter package, the circuit board assembly and partial terminal block at least partially contained within the meter package;
- and
- a binocular disposed between the second enclosure portion and the circuit board assembly.
Dependencies are inferred from the claim text.