Electrical devices having a polymer PTC array
First Claim
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1. An electrical circuit protection device comprising:
- a PTC element having first and second surfaces;
a first common electrode affixed to the first surface of the PTC element;
a second electrode affixed to the second surface of the PTC element;
a third electrode affixed to the second surface of the PTC element and being physically separated from the second electrode so that when the second and third electrodes are connected to a source of electrical current, the current travels from the second and third electrodes, respectively, through the PTC element, to the first common electrode.
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Abstract
The present invention is an electrical circuit protection device having a PTC element with a first common electrode affixed to a first surface of the PTC element and at least two second electrodes affixed to a second surface of the PTC element. The at least two second electrodes are physically separated from one another such that when the at least two second electrodes are connected to a source of electrical current, the current travels from the at least two second electrodes, respectively, through the PTC element, to the first common electrode.
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Citations
16 Claims
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1. An electrical circuit protection device comprising:
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a PTC element having first and second surfaces;
a first common electrode affixed to the first surface of the PTC element;
a second electrode affixed to the second surface of the PTC element;
a third electrode affixed to the second surface of the PTC element and being physically separated from the second electrode so that when the second and third electrodes are connected to a source of electrical current, the current travels from the second and third electrodes, respectively, through the PTC element, to the first common electrode. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An electrical apparatus for providing overcurrent protection to a plurality of electrical circuits, the apparatus comprising:
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a single continuous PTC element having a first and a second surface;
a first electrically insulating substrate connected to the PTC element;
a common first electrode having a connection portion and a collection portion, the connection portion being in contact with the insulating substrate and the collection portion being in contact with the first surface of the PTC element; and
a plurality of second electrodes having a connection portion and a collection portion, the connection portion of each of the plurality of electrodes being in contact with the insulating substrate and the collection portion of each of the plurality of electrodes being in contact with the second surface of the PTC element. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
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16. An electrical apparatus comprised of:
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a first PTC element having a first and a second surface, a first plurality of electrodes affixed to the first surface and a common electrode affixed to the second surface; and
a second PTC element having a first and a second surface, a second plurality of electrodes affixed to the first surface of the second PTC element and the common electrode affixed to the second surface of the second PTC element.
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Specification