Energy harvester for converting vibrational motion of a vibrating equipment into electrical energy, and a device for monitoring the operation of a vibrating equipment
First Claim
1. An energy harvester for convening vibrational motion of a vibrating equipment into electrical energy, comprising:
- a pendulum pivotably attached to said vibrating equipment;
a motion limiter arranged to limit a pivoting;
motion of said pendulum, said motion limiter including a first bar element spaced from a first side of the pendulum and a second bar element spaced from a second side of the pendulum;
a first spring element having a first end attached to the pendulum and a second end positioned in contact with the first bar element to restrict the pivoting movement of the pendulum during the pivoting movement of the pendulum and to cause the pendulum to rebound from the first bar element;
a second spring element having a first end attached to the pendulum and a second end positioned in contact with the second bar element to restrict the pivoting movement of the pendulum during the pivoting movement of the pendulum and to cause the pendulum to rebound from the second bar element; and
a generator connected to said pendulum and arranged to convert said pivoting motion into electrical energy,said vibrational motion having an operating frequency, and said pendulum having a natural frequency different from said operating frequency.
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Accused Products
Abstract
The invention relates to an energy harvester for converting vibrational motion of a vibrating equipment into electrical energy. The energy harvester comprises a pendulum arranged to be pivotably attached to said vibrating equipment, a motion limiter arranged to limit a pivoting motion of said pendulum, and a generator connected to said pendulum and arranged to convert said pivoting motion into electrical energy. The vibrational motion has an operating frequency, and said pendulum has a natural frequency different from said operating frequency. The invention also relates to a device for monitoring the operation of a vibrating equipment.
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Citations
11 Claims
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1. An energy harvester for convening vibrational motion of a vibrating equipment into electrical energy, comprising:
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a pendulum pivotably attached to said vibrating equipment; a motion limiter arranged to limit a pivoting;
motion of said pendulum, said motion limiter including a first bar element spaced from a first side of the pendulum and a second bar element spaced from a second side of the pendulum;a first spring element having a first end attached to the pendulum and a second end positioned in contact with the first bar element to restrict the pivoting movement of the pendulum during the pivoting movement of the pendulum and to cause the pendulum to rebound from the first bar element; a second spring element having a first end attached to the pendulum and a second end positioned in contact with the second bar element to restrict the pivoting movement of the pendulum during the pivoting movement of the pendulum and to cause the pendulum to rebound from the second bar element; and a generator connected to said pendulum and arranged to convert said pivoting motion into electrical energy, said vibrational motion having an operating frequency, and said pendulum having a natural frequency different from said operating frequency. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A device for monitoring the operation of a vibrating equipment, comprising:
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a sensor for detecting a parameter of said vibrating equipment; an energy harvester for convening vibrational motion of a vibrating equipment into electrical energy; a pendulum pivotably attached to said vibrating equipment; a motion limiter arranged to limit a pivoting motion of said pendulum, said motion limiter including a first bar element spaced from a first side of the pendulum and a second bar element spaced from a second side of the pendulum; a first spring element having a first end attached to the pendulum and a second end positioned in contact with the first bar element to restrict the pivoting movement of the pendulum during the pivoting movement of the pendulum and to cause the pendulum to rebound from the first bar element; a second spring element having, a first end attached to the pendulum and a second end positioned in contact with the second bar element to restrict the pivoting movement of the pendulum during the pivoting movement of the pendulum and to cause the pendulum to rebound from the second bar element; and a generator connected to said pendulum and arranged to convert said pivoting motion into electrical energy, said vibrational motion having an operating frequency, and said pendulum having a natural frequency different from said operating frequency. - View Dependent Claims (11)
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Specification