Holster-integrated piezoelectric energy source for handheld electronic device
First Claim
Patent Images
1. A holster for a handheld electronic device, the holster comprising:
- at least one piezoelectric element to generate an input voltage upon being deformed;
charging circuitry electrically connected to the at least one piezoelectric element; and
a coil electrically connected to the charging circuitry, the charging circuitry to provide an output voltage to the coil in accordance with the input voltage, the coil to inductively couple the charging circuitry to a magnetic inductive coupling assembly of the handheld electronic device upon the handheld electronic device being inserted into the holster.
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Abstract
A holster for a handheld electronic device. The holster has integrated therein one or more piezoelectric elements that provide an output voltage to the handheld electronic device upon insertion of device in the holster. The output voltage can be used to charge the battery of the device, to power, at least in part, the device, or both. The output voltage is generated by harvesting vibration energy at the piezoelectric elements upon the holster being subjected to acceleration caused by a user carrying the holster when walking, running, or during any other suitable activity.
11 Citations
11 Claims
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1. A holster for a handheld electronic device, the holster comprising:
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at least one piezoelectric element to generate an input voltage upon being deformed; charging circuitry electrically connected to the at least one piezoelectric element; and a coil electrically connected to the charging circuitry, the charging circuitry to provide an output voltage to the coil in accordance with the input voltage, the coil to inductively couple the charging circuitry to a magnetic inductive coupling assembly of the handheld electronic device upon the handheld electronic device being inserted into the holster. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A holster for a handheld electronic device, the holster comprising:
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a plurality of piezoelectric elements to generate an input voltage upon being deformed, each piezoelectric element having a first portion fixedly secured to a portion of the holster; charging circuitry electrically connected to the plurality of piezoelectric element, the charging circuitry having an electrical connector, the charging circuitry to provide an output voltage to the electrical connector in accordance with the input voltage, the electrical connector to connect to the handheld electronic device upon the handheld electronic device being inserted into the holster, the holster defining a cavity having a cavity length along which the handheld electronic device can be slid in and out of the holster, each piezoelectric element being an elongated member, wherein the plurality of piezoelectric elements are arranged in a first comb of piezoelectric elements and in a second comb of piezoelectric elements, the first comb and the second comb of piezoelectric elements being interleaved with respect to each other. - View Dependent Claims (9, 10)
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11. A holster for a handheld electronic device, the holster comprising:
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at least one piezoelectric element to generate an input voltage upon being deformed; charging circuitry electrically connected to the at least one piezoelectric element; and a coil electrically connected to the charging circuitry, the charging circuitry to provide an output voltage to the coil in accordance with the input voltage, the coil to inductively couple the charging circuitry to the handheld electronic device upon the handheld electronic device being inserted into the holster, wherein the at least one piezoelectric element includes a plurality of piezoelectric elements arranged in a first comb of piezoelectric elements and in a second comb of piezoelectric elements, the first comb and the second comb of piezoelectric elements being interleaved with respect to each other.
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Specification