METHOD FOR PRODUCING AN OVERTEMPERATURE PROTECTION DEVICE AND CORRESPONDING OVERTEMPERATURE PROTECTION DEVICE
First Claim
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1. A method for the manufacture of an excess temperature protection device comprising the steps of:
- providing a support surface having a heating conductor placed thereon, wherein the heating conductor has a first end with a first contact lead and a second end with a second contact lead, and a gap formed between said first contact lead and said second contact lead;
affixing in the vicinity of said heating conductor a protection element formed of a material having a melting point at a specific temperature and having a first end and a second end, such that the first end of the protection element is place over the first contact lead and the second end of the protection element is place over the second contact lead; and
achieving an electrical connection between said first end and said second end of said protection element and said first contact lead and said second contact lead of said heating conductor, respectively.
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Abstract
An over temperature protection device can be applied to a support surface having a heat conductor. The heat conductor has an interruption forming a gap, on the top of which a tin-based protection element is prefixed by an adhesive. In one embodiment, the ends of the protection element project beyond the heat conductor and are electrically contacted to the heat conductor by a silver/polymer paste.
9 Citations
26 Claims
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1. A method for the manufacture of an excess temperature protection device comprising the steps of:
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providing a support surface having a heating conductor placed thereon, wherein the heating conductor has a first end with a first contact lead and a second end with a second contact lead, and a gap formed between said first contact lead and said second contact lead;
affixing in the vicinity of said heating conductor a protection element formed of a material having a melting point at a specific temperature and having a first end and a second end, such that the first end of the protection element is place over the first contact lead and the second end of the protection element is place over the second contact lead; and
achieving an electrical connection between said first end and said second end of said protection element and said first contact lead and said second contact lead of said heating conductor, respectively. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. An excess temperature protection device comprising:
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a support surface having a heating conductor thereon, wherein the heating conductor comprises a first contact area and a second contact area thereby forming a gap interrupting a current path of the heating conductor; and
a protection element formed of a metal with a melting point at a specific temperature having a first end and a second end, the protection element affixed in the vicinity of said gap in such a way that the first end and second end overlap the first contact area and the second contact area of the heating conductor respectively, thereby establishing an electrical connection from the first contact area through the protection element and to the second contact area. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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Specification