Fuel cell system
A fuel cell system, fuel cell technology, applied in the direction of fuel cells, fuel cell additives, fuel cell heat exchange, etc.
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no. 1 example
[0032] Fig. 2 is a block diagram showing the configuration of a fuel cell system according to a first embodiment of the present invention. Referring to FIG. 2 , the fuel cell system of the first embodiment includes a fuel cell 1 , a secondary battery 2 , and a DC power source 3 as power sources. The output of the fuel cell 1 is connected to the dummy load circuit 6 , and is also connected to an information device from an output terminal via a first switch circuit 11 , a distribution circuit 12 , and a first synthesis circuit 13 . In addition, it is connected to the third combining circuit 17 via the first combining circuit. The distribution circuit 12 supplies a part of the output of the fuel cell 1 to the second combination circuit 14 . The output of the DC power supply 3 is connected to the second synthesis circuit 14 and the third synthesis circuit 17 . The output of the third combination circuit 17 is connected to the auxiliary machine 8 through the second DC / DC converte...
no. 2 example
[0041] Fig. 3 is a block diagram showing the configuration of a fuel cell system according to a second embodiment of the present invention. The constitution of the second embodiment is the same as that of the first embodiment. Therefore, only the differences will be described.
[0042] Referring to FIG. 3 , in the fuel cell system of the second embodiment, the dummy load circuit 6 is replaced by a switch 21 and a load 22 . The load 22 is a heater for heating the fuel cell. The control circuit 10 detects data indicating the temperature of the fuel cell 1 based on the output current value of the load 22, and controls the output current value of the fuel cell 1 based on the temperature data. In the second embodiment, the distribution circuit 12 is omitted. In addition, each of the first combination circuit 13 , the second combination circuit 14 , and the third combination circuit 17 realizes the output of two diodes through OR combination.
[0043] Diodes can be composed of S...
no. 3 example
[0054] Next, a fuel cell system according to a third embodiment of the present invention will be described. Referring to FIG. 5 , the fuel cell system of the third embodiment includes a fuel cell 1 , a synthesis circuit 30 , an auxiliary machine 8 , and a control circuit 10 . The auxiliary power supply assembly 50 is connected to the fuel cell system through a connector 60 . The synthesizing circuit 30 is formed of diodes, and synthesizes the electric power from the fuel cell 1 and the electric power from the auxiliary power supply unit 50 and supplies it to a load such as a personal computer. The auxiliary power supply assembly 50 includes a primary battery 5 , a protection circuit 7 , and a DC / DC converter 13 .
[0055] The fuel cell system of this embodiment is a power supply system using a fuel cell as a power source. The fuel cell 1 is suitable for a direct methanol fuel cell, but is not limited thereto. The auxiliary power supply unit 50 is detachably connected via a ...
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