Power Generating Device and Tire Provided Therewith
First Claim
1. A power generating device which has a predetermined rotating shaft in a direction different from the direction of gravity, which is provided in a rotating body rotating about the rotating shaft at a predetermined period, and which generates electric power while rotating about the rotating shaft, characterized by having a generator comprising:
- a flexible beam which is fixed to a substrate;
a weight which is supported by the beam and the position of which is fluctuated in synchronization with the period of the rotation by deflection of the beam caused in accordance with the rotation; and
AC generating means which generates AC power synchronized with the period of the rotation by the fluctuation of the position of the weight.
1 Assignment
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Accused Products
Abstract
An object of the present invention is to provide a power generating device which makes it possible to easily generate electric power in a rotating system, such as a wheel including a tire, without impairing the performance and reliability of the rotating system. In the case where the power generating device 10 is mounted to a rotating body such as a tire, the direction of gravity applied to a weight 113 is changed with the rotation of the rotating body to cause beams 111 to be deflected, so that the positions of the deflected beams 111 and the weight 113 are fluctuated in synchronization with the period of the rotation to cause the position of a coil 121 to be displaced. Thereby, the weight 113 is vibrated in the vertical direction in synchronization with the period of the rotation of the rotating body to change the magnetic flux density crossing the coil 121. As a result, AC electromotive forces are generated in the coil 121 to enable electric power to be generated.
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Citations
19 Claims
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1. A power generating device which has a predetermined rotating shaft in a direction different from the direction of gravity, which is provided in a rotating body rotating about the rotating shaft at a predetermined period, and which generates electric power while rotating about the rotating shaft, characterized by having a generator comprising:
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a flexible beam which is fixed to a substrate;
a weight which is supported by the beam and the position of which is fluctuated in synchronization with the period of the rotation by deflection of the beam caused in accordance with the rotation; and
AC generating means which generates AC power synchronized with the period of the rotation by the fluctuation of the position of the weight. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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Specification