Fuel leakage preventing structure and biofuel cell
First Claim
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1. A fuel leakage preventing structure for a biofuel cell, comprising:
- a control valve attached to a fuel supply unit through which a fuel solution is introduced into a battery cell unit of the biofuel cell; and
a valve control unit configured to electrically control opening and/or closing of the control valve, wherein the valve control unit comprises;
a first electrode formed on a first member, anda second electrode facing the first electrode formed on a second member,wherein the valve control unit opens and/or closes the control valve, depending on conduction between the first electrode and the second electrode caused by a pressing force applied on the first member.
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Abstract
The valve control unit of a fuel leakage preventing structure of the present invention includes first and second electrodes. The first electrode is attached to a first member that is movable. When a pressing force is applied to the first member to move, the first and second electrodes are brought into contact with each other, to cause conduction. The first and second electrodes are connected to a control device, and the control device opens a control valve when the first and second electrodes are put into a conducting state. As the control valve is opened and closed by a pressing force in this manner, a fuel solution can be easily supplied.
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Citations
10 Claims
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1. A fuel leakage preventing structure for a biofuel cell, comprising:
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a control valve attached to a fuel supply unit through which a fuel solution is introduced into a battery cell unit of the biofuel cell; and a valve control unit configured to electrically control opening and/or closing of the control valve, wherein the valve control unit comprises; a first electrode formed on a first member, and a second electrode facing the first electrode formed on a second member, wherein the valve control unit opens and/or closes the control valve, depending on conduction between the first electrode and the second electrode caused by a pressing force applied on the first member. - View Dependent Claims (2, 3, 4, 5, 6, 8, 9, 10)
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7. A biofuel cell comprising:
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a battery cell unit including an electrode with an enzyme existing on a surface thereof; and a fuel leakage preventing structure configured to supply a fuel solution to the battery cell unit, wherein the fuel leakage preventing structure includes; a control valve; and a valve control unit configured to electrically control opening and/or closing of the control valve, wherein the valve control unit comprises; a first electrode formed on a first member, and a second electrode facing the first electrode formed on a second member, wherein the control valve is attached to at least one of a fuel supply inlet through which the fuel solution is introduced into the battery cell unit, and a fuel supply path connected to the fuel supply inlet, and the valve control unit opens and/or closes the control valve, depending on conduction between the first electrode and the second electrode caused by a pressing force applied on the first member.
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Specification