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A fuel cell system includes: a fuel cell which generates electricity using hydrogen and oxygen; a hydrogen storage which stores hydrogen supplied to the fuel cell and which has a supply port connectable to a hydrogen supply unit for supplying hydrogen from outside the fuel cell system; a detector wh

A fuel cell system includes: a fuel cell which generates electricity using hydrogen and oxygen; a hydrogen storage which stores hydrogen supplied to the fuel cell and which has a supply port connectable to a hydrogen supply unit for supplying hydrogen from outside the fuel cell system; a detector which detects a leakage of the hydrogen from the hydrogen storage; and a connection controller which regulates connection of the hydrogen supply unit to the supply port when the leakage of the hydrogen is detected by the detector.

대표청구항 ▼

1. A fuel cell system configured to be attached to a hydrogen supply unit to supply hydrogen from the hydrogen supply unit to the fuel cell system, comprising: a fuel cell which generates electricity using hydrogen and oxygen;a hydrogen storage which stores hydrogen supplied to said fuel cell and wh

1. A fuel cell system configured to be attached to a hydrogen supply unit to supply hydrogen from the hydrogen supply unit to the fuel cell system, comprising: a fuel cell which generates electricity using hydrogen and oxygen;a hydrogen storage which stores hydrogen supplied to said fuel cell and which has a supply port connectable to a hydrogen supply unit for supplying hydrogen from outside the fuel cell system;a detector which detects a leakage of the hydrogen from said hydrogen storage; anda connection controller which prevents connection of the hydrogen supply unit to the supply port when the leakage of the hydrogen is detected by said detector. 2. A fuel cell system according to claim 1 further comprising a primary cell or a secondary cell, said connection controller including: a thermoplastic part;a heat-generating part which generates heat and conducts the heat generated to the thermoplastic part; anda movable part which is pressed against the thermoplastic part by an elastic part,wherein when a leakage of hydrogen is detected, the thermoplastic part is softened by supplying electric power from the primary cell or the secondary cell to the heat-generating part, and the movable part is operated. 3. A fuel cell connected to a hydrogen supply unit including a hydrogen supply source for supplying additional hydrogen, a supply outlet connected to the fuel cell and a supply control means provided between the hydrogen supply source and the supply outlet, the fuel cell system comprising: a fuel cell which generates electricity using hydrogen and oxygen;a hydrogen storage which stores hydrogen supplied to said fuel cell and which has a supply port connectable to the hydrogen supply unit for supplying hydrogen from outside the fuel cell system;a detector which detects a leakage of the hydrogen from said hydrogen storage; anda structure deformation section provided in a position counter to the hydrogen supply unit,wherein when the leakage of the hydrogen is detected, said structure deformation section deforms a structure thereof. 4. A fuel cell system according to claim 3, further comprising a primary cell or a secondary cell, said structure deformation section including: a thermoplastic part;a heat-generating part which generates heat and conducts the heat generated to the thermoplastic part; anda movable part which is pressed against the thermoplastic part by an elastic part,wherein when a leakage of hydrogen is detected, the thermoplastic part is softened by supplying electric power from the primary cell or the secondary cell to the heat-generating part, and the movable part is operated. 5. A fuel cell system according to claim 1, wherein said detector includes a voltmeter which measures the voltage of cells constituting the fuel cell, and detects the leakage of the hydrogen supplied from said hydrogen storage by comparing a measured voltage value with a predetermined voltage value. 6. A fuel cell system according to claim 2, wherein said detector includes a voltmeter which measures the voltage of cells constituting the fuel cell, and detects the leakage of the hydrogen supplied from said hydrogen storage by comparing a measured voltage value with a predetermined voltage value. 7. A fuel cell system according to claim 3, wherein said detector includes a voltmeter which measures the voltage of cells constituting the fuel cell, and detects the leakage of the hydrogen supplied from said hydrogen storage by comparing a measured voltage value with a predetermined voltage value. 8. A fuel cell system according to claim 4, wherein said detector includes a voltmeter which measures the voltage of cells constituting the fuel cell, and detects the leakage of the hydrogen supplied from said hydrogen storage by comparing a measured voltage value with a predetermined voltage value. 9. A fuel cell system according to claim wherein said hydrogen storage includes a metal hydride, and wherein said detector includes a first thermometer for measuring the temperature of said hydrogen storage and a second thermometer for measuring ambient temperature, and said detector detects the leakage of the hydrogen supplied from said hydrogen storage by comparing a temperature value measured by the first thermometer with that measured by the second thermometer. 10. A fuel cell system according to claim 2, wherein said hydrogen storage includes a metal hydride, and wherein said detector includes a first thermometer for measuring the temperature of said hydrogen storage and a second thermometer for measuring ambient temperature, and said detector detects the leakage of the hydrogen supplied from said hydrogen storage by comparing a temperature value measured by the first thermometer with that measured by the second thermometer. 11. A fuel cell system according to claim 3, wherein said hydrogen storage includes a metal hydride, and wherein said detector includes a first thermometer for measuring the temperature of said hydrogen storage and a second thermometer for measuring ambient temperature, and said detector detects the leakage of the hydrogen supplied from said hydrogen storage by comparing a temperature value measured by the first thermometer with that measured by the second thermometer. 12. A fuel cell system according to claim 4, wherein said hydrogen storage includes a metal hydride, and wherein said detector includes a first thermometer for measuring the temperature of said hydrogen storage and a second thermometer for measuring ambient temperature, and said detector detects the leakage of the hydrogen supplied from said hydrogen storage by comparing a temperature value measured by the first thermometer with that measured by the second thermometer. 13. A fuel cell system according to claim 5, wherein said detector stops power generation of the fuel cell at a predetermined timing and detects the leakage of the hydrogen by comparing a an open-circuit voltage value measured by the voltmeter with a predetermined voltage value. 14. A fuel cell system according to claim 6, wherein said detector stops power generation of the fuel cell at a predetermined timing and detects the leakage of the hydrogen by comparing a an open-circuit voltage value measured by the voltmeter with a predetermined voltage value. 15. A fuel cell system according to claim 7, wherein said detector stops power generation of the fuel cell at a predetermined timing and detects the leakage of the hydrogen by comparing a an open-circuit voltage value measured by the voltmeter with a predetermined voltage value. 16. A fuel cell system according to claim 8, wherein said detector stops power generation of the fuel cell at a predetermined timing and detects the leakage of the hydrogen by comparing a an open-circuit voltage value measured by the voltmeter with a predetermined voltage value.