Energy storage apparatus
AssigneeGS Yuasa International Ltd.
InventorsRyuichi ITO, Shoichi ARIMOTO, Shota OKAMOTO
Life of this patent
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Abstract
An energy storage apparatus includes a first semiconductor switch and a second semiconductor switch provided in series on a power line between an energy storage device and a negative terminal, a cutoff control switch connected to the first and second semiconductor switches to simultaneously turn off the first and second semiconductor switches when an abnormality of the energy storage device is detected by a management controller, and an external charge detector to simultaneously turn on the first and second semiconductor switches when detecting that an external power supply has been connected to a positive terminal and the negative terminal.
Claims7
An energy storage apparatus comprising:
- an energy storage device;
- a management controller;
- a positive terminal and a negative terminal;
- a power line connecting the positive terminal, the energy storage device, and the negative terminal to each other;
- a first semiconductor switch and a second semiconductor switch provided in series on the power line between the energy storage device and the negative terminal;
- a cutoff control switch connected to the first and second semiconductor switches to simultaneously turn off the first and second semiconductor switches when an abnormality of the energy storage device is detected by the management controller;
- and
- an external charge detector to simultaneously turn on the first and second semiconductor switches when detecting that an external power supply has been connected to the positive terminal and the negative terminal.
An energy storage apparatus comprising:
- an energy storage device;
- a management controller;
- a positive terminal and a negative terminal;
- a power line connecting the positive terminal, the energy storage device, and the negative terminal to each other;
- a first semiconductor switch and a second semiconductor switch provided in series on the power line the energy storage device and the negative terminal;
- a cutoff control switch connected to the first and second semiconductor switches to simultaneously turn off the first and second semiconductor switches when a first abnormality of the energy storage device is detected by the management controller;
- a latch circuit;
- and
- a reuse prohibition switch provided in series with the cutoff control switch to be turned off by the latch circuit when a second abnormality of the energy storage device is detected by the management controller, and to maintain an off state even when the second abnormality is resolved.
An energy storage apparatus comprising:
- an energy storage device;
- a management controller;
- a positive terminal and a negative terminal;
- a power line connecting the positive terminal, the energy storage device, and the negative terminal to each other;
- a first semiconductor switch and a second semiconductor switch provided in series on the power line between the energy storage device and the negative terminal;
- a cutoff control switch connected to the first and second semiconductor to switch and simultaneously turn off the first and second semiconductor switches when an abnormality of the energy storage device is detected by the management controller;
- a latch circuit;
- and
- a reuse prohibition switch provided in series with the cutoff control switch, to be turned off by the latch circuit when the abnormality of the energy storage device is detected by the management controller, and to maintain an off state even when the abnormality is resolved.
Dependencies are inferred from the claim text.