Power strip and electrical power measurement system
AssigneeFujitsu Limited
InventorsHiromitsu Soneda, Osamu Tsuboi, Fumihiko Nakazawa
Life of this patent
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Abstract
A power strip includes a casing including a plurality of plug insertion portions each having a first insertion port and a second insertion port into which first and second plug blades of a socket plug are to be respectively inserted, a magnetic core which is provided in each of the plurality of plug insertion portions and includes a first opening into which the first plug blade is to be inserted, a second opening into which the second plug blade is to be inserted, and a slit to communicate between the first plug blade and the second plug blade, and a magnetic sensor provided inside the slit.
Claims21
A power strip comprising:
- a casing which includes a plurality of plug insertion portions each having a first insertion port and a second insertion port into which first plug blade and second plug blade of a socket plug are to be respectively inserted;
- a magnetic core which is provided to correspond with each of the plurality of plug insertion portions and includes a first opening into which the first plug blade is to be inserted, a second opening into which the second plug blade is to be inserted, and a slit by which the first opening and the second opening communicate;
- and
- a magnetic sensor provided in the slit.
An electrical power measurement system comprising:
- a power strip including a plurality of plug insertion portions into which socket plugs of external electrical devices are to be respectively inserted, the power strip supplying a power-supply voltage to each of the plug insertion portions;
- a magnetic core provided in each of the plug insertion portions and having a slit;
- a magnetic sensor provided in the slit and measures a current flowing through a first plug blade and a second plug blade of the socket plug;
- and
- a computer for calculating power consumptions of a plurality of electrical devices connected to the plug insertion portions, the power being calculated for each of the electrical devices by multiplying the measured current by the power-supply voltage, wherein
- the magnetic core has a first opening into which the first plug blade is to be inserted and a second opening into which the second plug blade is to be inserted, and the first opening and the second opening are communicating by the slit.
Dependencies are inferred from the claim text.