Distribution board and battery pack
First Claim
Patent Images
1. A distribution board comprising:
- a power line for supplying, to a plurality of loads, including a normal load and an emergency load, AC power that is supplied from a power system;
a plurality of pack housings which house a plurality of battery packs, respectively, each pack housing including a connecting unit, and each battery pack including a connecting terminal unit for charge and discharge, the connecting units being connectable to and disconnectable from the connecting terminal units of the battery packs;
an AC/DC converter which converts the AC power supplied from the power system into DC power, and supplies the DC power to the battery packs housed in the pack housings to charge the battery packs;
a DC/AC inverter which converts, into AC power, the DC power discharged from the battery packs via the connecting units, and supplies the AC power to the loads; and
a switching controller which switches between a grid connection mode and a self-sustained operation mode, the grid connection mode being a mode in which the AC power supplied from the power system is supplied to at least the normal load, the self-sustained operation mode being a mode in which electric power discharged from the battery pack is supplied to at least the emergency load via the DC/AC inverter;
wherein, when at least one of the battery packs is removed while electric power is supplied from the battery packs to the emergency load, the switching controller continuously supplies electric power to the emergency load by using the battery packs excluding the at least one battery pack that has been removed.
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Abstract
A distribution board includes: a pack housing unit which houses a battery pack and includes a connecting unit; and a charge control unit. The battery pack includes a connecting terminal unit for charge and discharge of power and can supply power to the distribution board and another device different from the distribution board. The connecting unit is connectable to and disconnectable from the connecting terminal unit. The charge control unit converts AC power supplied from a power system into DC power, and supplies the DC power to the battery pack housed in the pack housing unit to charge the battery pack.
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Citations
10 Claims
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1. A distribution board comprising:
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a power line for supplying, to a plurality of loads, including a normal load and an emergency load, AC power that is supplied from a power system; a plurality of pack housings which house a plurality of battery packs, respectively, each pack housing including a connecting unit, and each battery pack including a connecting terminal unit for charge and discharge, the connecting units being connectable to and disconnectable from the connecting terminal units of the battery packs; an AC/DC converter which converts the AC power supplied from the power system into DC power, and supplies the DC power to the battery packs housed in the pack housings to charge the battery packs; a DC/AC inverter which converts, into AC power, the DC power discharged from the battery packs via the connecting units, and supplies the AC power to the loads; and a switching controller which switches between a grid connection mode and a self-sustained operation mode, the grid connection mode being a mode in which the AC power supplied from the power system is supplied to at least the normal load, the self-sustained operation mode being a mode in which electric power discharged from the battery pack is supplied to at least the emergency load via the DC/AC inverter; wherein, when at least one of the battery packs is removed while electric power is supplied from the battery packs to the emergency load, the switching controller continuously supplies electric power to the emergency load by using the battery packs excluding the at least one battery pack that has been removed. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification