Uninterruptible power supply system

1. An uninterruptible power supply system, comprising:

a plurality of power supply units, each of which includes a power supply circuit converting alternating current power into direct current voltage to be supplied to a load apparatus, each said power supply unit including a frame having predetermined dimensions and housing the power supply circuit;

a plurality of battery units, each of which includes a battery circuit, at least one of the battery units being aligned with at least one of the power supply units, the battery circuit storing direct current power and discharging the direct current power to generate direct current voltage to be supplied to the load apparatus, each said battery unit including a frame having the same predetermined dimensions as that of the frame of each said power supply unit, the frame of each said battery unit housing the battery circuit; and

a rack in which each of the power supply units and the battery units is mounted so as to be connectable to the rack and detachable from the rack, the rack connecting the power supply circuit and the battery circuit in parallel, the rack including

a plurality of first connecting structure bodies, each of which extends in a first direction, each said first connecting structure body being connectably and detachably mountable to at least one of the power supply units and the battery units, and

a second connecting structure body straddling the plurality of first connecting structure bodies in a second direction different from the first direction, and being electrically connected to the first connecting structure bodies; and

a terminal unit, wherein

each said first connecting structure body includes:

a direct current power line that supplies the direct current voltages from the power supply units and the battery units to the load apparatus;

a terminal portion that

has the terminal unit mounted thereupon, and

separates the direct current power line between neighboring ones of the housing regions; and

a linking structure that connects a separated direct current power line in series via the terminal unit.

2. An uninterruptible power supply system, comprising:

a plurality of power supply units, each of which includes a power supply circuit converting alternating current power into direct current voltage to be supplied to a load apparatus, each said power supply unit including a frame having predetermined dimensions and housing the power supply circuit;

a plurality of battery units, each of which includes a battery circuit, at least one of the battery units being aligned with at least one of the power supply units, the battery circuit storing direct current power and discharging the direct current power to generate direct current voltage to be supplied to the load apparatus, each said battery unit including a frame having the same predetermined dimensions as that of the frame of each said power supply unit, the frame of each said battery unit housing the battery circuit; and

a rack in which each of the power supply units and the battery units is mounted so as to be connectable to the rack and detachable from the rack, the rack connecting the power supply circuit and the battery circuit in parallel, the rack including

a plurality of first connecting structure bodies, each of which extends in a first direction, each said first connecting structure body being connectably and detachably mountable to at least one of the power supply units and the battery units, and

a second connecting structure body straddling the plurality of first connecting structure bodies in a second direction different from the first direction, and being electrically connected to the first connecting structure bodies; and

an auxiliary battery unit including

an auxiliary battery storing direct current power, and

a DC/AC converter that generates alternating current power to be supplied to the power supply units from the direct current power stored in the auxiliary battery, and outputs the alternating current power to the alternating current power supply line.

3. The uninterruptible power supply system according to claim 1 , wherein

the rack has dimensions compliant with Electronic Industries Alliance standards such that a plurality of load apparatuses are mountable in the rack to be aligned vertically, and each frame of each said power supply unit and each said battery unit having a basic housing size of the rack, or a size such that the basic housing size is divided in a width direction into N equal portions, where N is a positive integer of 2 or more, each said frame being mounted in the rack together with the load apparatus that receives the direct current voltages from the power supply units and the battery units.

4. The uninterruptible power supply system according to claim 1 , wherein the power supply units include three power supply units that are connected to a three-phase alternating current power supply so that each phase is connected to a different one of the three power supply units.

5. The uninterruptible power supply system according to claim 1 , wherein two of the battery units are provided in parallel with one of the power supply units.

6. The uninterruptible power supply system according to claim 1 , wherein

each of the power supply units and the battery units includes a fan device, the fan devices causing air to flow through interiors of each frame of each said battery unit and each said power supply unit, thereby releasing heat in the power supply circuit and the battery circuit, and

the fan devices being controlled so as to be driven even when operation of the power supply circuit and the battery circuit is stopped.

7. An uninterruptible power supply system, comprising:

a plurality of power supply units, each of which includes a power supply circuit converting alternating current power into direct current voltage to be supplied to a load apparatus;

a plurality of battery units, each of which includes a battery circuit, each said battery unit being aligned with one of the power supply units, the battery circuit storing direct current power and discharging the direct current power to generate direct current voltage to be supplied to the load apparatus; and

a rack, in which each of the power supply units and the battery units is mounted so as to be connectable to the rack and detachable from the rack, the rack connecting an output of the power supply circuit to an input of the battery circuit so that the battery circuit receives the direct current voltage from the power supply circuit, the rack including

a plurality of first connecting structure bodies, each of which extends in a first direction, each said first connecting structure body being connectably and detachably mountable to at least one of the power supply units and the battery units, and

a second connecting structure body straddling the plurality of first connecting structure bodies in a second direction different from the first direction, and being electrically connected to the first connecting structure bodies; and

a terminal unit, wherein

each said first connecting structure body includes:

a direct current power line that supplies the direct current voltages from corresponding one or more of the power supply units and/or one or more of the battery units to the load apparatus;

a terminal portion that

has the terminal unit mounted thereupon, and

separates the direct current power line between neighboring ones of the housing regions; and

a linking structure that connects a separated direct current power line in series via the terminal unit.

8. The uninterruptible power supply system according to claim 7 , wherein

each said power supply unit includes a frame having predetermined dimensions and housing the power supply circuit, and

each said battery unit includes a frame having the same predetermined dimensions as that of the frame of each said power supply unit, the frame of each said battery unit housing the battery circuit.

9. The uninterruptible power supply system according to claim 8 , wherein

the rack includes a front surface side and a back surface side,

the uninterruptible power supply system further comprises a plurality of connectors, each frame of each said power supply unit and each said battery unit having a respective one of the connectors disposed thereon at the back surface side of the rack, and

each said first connecting structure body is coupled to the power supply circuit and the battery circuit via corresponding connectors to connect the output of the power supply circuit to the input of the battery circuit.

10. The uninterruptible power supply system according to claim 9 , wherein each first connecting structure body further includes an alternating current power supply line connected to a system power supply, and

the direct current power line connects the output of the power supply circuit to the input of the battery circuit.

11. The uninterruptible power supply system according to claim 7 , wherein the battery circuit includes

a battery for storing the direct current power, and

a DC/DC converter receiving the direct current voltage from the power supply units, converting the received direct current voltage into the direct current power to be stored in the battery, and generating direct current voltage to be supplied to the load apparatus from the direct current power stored in the battery.

12. An uninterruptible power supply system, comprising:

a plurality of power supply units, each of which includes a power supply circuit converting alternating current power into direct current voltage to be supplied to a load apparatus;

a plurality of battery units, each of which includes a battery circuit, the battery circuit storing direct current power and discharging the direct current power to generate direct current voltage to be supplied to the load apparatus;

a terminal unit; and

a rack, in which each of the power supply units and the battery units is mounted so as to be disengagebly connected to the rack, the rack

connecting an output of the power supply circuit to an input of the battery circuit so that the battery circuit receives the direct current voltage from the power supply circuit, or

connecting the power supply circuit and the battery circuit in parallel, and

including a plurality of first connecting structure bodies, each of which extends in a first direction, each first connecting structure body being connectably and detachably mountable to at least one of the power supply units and the battery units, and a second connecting structure body straddling the plurality of first connecting structure bodies in a second direction different from the first direction, and being electrically connected to the first connecting structure bodies,

wherein each said first connecting structure body includes:

a direct current power line that supplies the direct current voltages from corresponding one or more of the power supply units and/or one or more of the battery units to the load apparatus;

a terminal portion that

has the terminal unit mounted thereupon, and

separates the direct current power line between neighboring ones of the housing regions; and

a linking structure that connects a separated direct current power line in series via the terminal unit.