Electronic electricity meter and method of assembly
View Patent ↗An electronic residential electricity meter includes a base assembly having a main body with a current transformer mounted thereto. A first conductor is mounted through a window of the current transformer. The current transformer being operable in the presence of a direct current. The meter also includes an electronic module that has only one printed circuit board and a microcomputer for executing meter data operations. The current transformer and the first conductor are in electrical communication with the electronic module.
1. An electronic residential electricity meter comprising:
a base assembly having a main body, said base assembly includes:
a current transformer mounted to said main body;
a first conductor mounted through a window of said current transformer, said current transformer being operable in the presence of a direct current;
a second conductor mounted through said window of said current transformer, said first conductor being separated from said second conductor;
an electronic module having only one printed circuit board, said current transformer and said first conductor are in electrical communication with said electronic module; and
a microcomputer configured to execute meter data operations.
2. The meter of claim 1 , further comprising an inner cover mounted to said base assembly, said electronic module is mounted to an inside of said inner cover.
3. The meter of claim 2 , wherein said inner cover accommodates said printed circuit board in varying sizes.
4. The meter of claim 1 , further comprising an outer cover enclosing said inner cover and mounted to said base assembly, said outer cover having a front face that is at least partially transparent.
5. The meter of claim 1 , wherein said first conductor and said second conductor each have two ends that extend through said main body to a back side, said ends are configured and dimensioned to mate with a meter socket.
6. The meter of claim 1 , wherein said electronic module includes a display disposed on said printed circuit board, said display is in communication with said microcomputer.
7. The meter of claim 6 , wherein said display is a liquid crystal display including first section that is configured to constantly display a measured energy quantity, a second section that is configured to display a rate of power flow, and a third section that is configured to display a current power demand.
8. The meter of claim 1 , wherein said electronic module includes a communications port disposed on said printed circuit board, said communications port is in communication with said microcomputer.
9. The meter of claim 8 , wherein said communications port includes a phototransistor and light emitting diode for communicating with an optical probe.
10. The meter of claim 1 , wherein said electronic module includes a metering circuit disposed on said printed circuit board, said metering circuit is in electronic communication with said microcomputer.
11. The meter of claim 10 , wherein said current transformer is in electrical communication with said metering circuit.
12. The meter of claim 10 , wherein said metering circuit includes a chip that is adapted to measure a current and a voltage.
13. The meter of claim 10 , wherein said electronic module includes a power supply disposed on said printed circuit board, said power supply is in communication with said microcomputer and said metering circuit, said power supply provides power to said chip and said microcomputer.
14. The meter of claim 13 , wherein said first conductor is in electrical communication with said power supply.
15. The meter of claim 13 , wherein said power supply includes a series capacitor and a shunt regulator.
16. The meter of claim 1 , wherein said electronic module includes a non-volatile memory disposed on said printed circuit board, said non-volatile memory is in communication with said microcomputer.
17. The meter of claim 1 , wherein said electronic module includes an oscillator and clock distribution disposed on said printed circuit board, said oscillator and clock distribution is in communication with said microcomputer.
18. An electronic residential electricity meter comprising:
a base assembly having a main body, said base assembly including;
a current transformer mounted to said main body;
a first conductor mounted through a window of said current transformer, said current transformer being operable in the presence of a direct current;
an electronic module having only one printed circuit board, said current transformer and said first conductor being in electrical communication with said electronic module;
a microcomputer configured to execute meter data operations; and
a liquid-crystal display disposed on said printed circuit board, said display being communication with said microcomputer and including a first section configured to constantly display a measured energy quantity, a second section configured to display a rate of power flow, and a third section configured to display a current power demand.
19. The meter of claim 18 , wherein said electronic module includes a communications port disposed on said printed circuit board, said communications port is in communication with said microcomputer.
20. The meter of claim 19 , wherein said communications port includes a phototransistor and light emitting diode for communicating with an optical probe.
21. The meter of claim 18 , wherein said electronic module includes a metering circuit disposed on said printed circuit board, said metering circuit is in electronic communication with said microcomputer.
22. The meter of claim 21 , wherein said electronic module includes a power supply disposed on said printed circuit board, said power supply is in communication with said microcomputer and said metering circuit, said power supply provides power to said chip and said microcomputer.
23. An electronic residential electricity meter comprising:
a base assembly having a main body, said base assembly including:
a current transformer mounted to said main body;
a first conductor mounted through a window of said current transformer, said current transformer being operable in the presence of a direct current;
an electronic module having only one printed circuit board, said current transformer and said first conductor being in electrical communication with said electronic module;
a microcomputer configured to execute meter data operations; and
a communications port disposed on said printed circuit board, said communications port being in communication with said microcomputer and including a phototransistor and light emitting diode for communicating with an optical probe.
24. The meter of claim 23 , wherein said electronic module includes a metering circuit disposed on said printed circuit board, said metering circuit is in electronic communication with said microcomputer.
25. The meter of claim 24 , wherein said electronic module includes a power supply disposed on said printed circuit board, said power supply is in communication with said microcomputer and said metering circuit, said power supply provides power to said chip and said microcomputer.