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US 2026/0221369 A1Published application
Fuse element and protection element
AssigneeDexerials Corporation
InventorYoshihiro YONEDA
Life of this patent
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Abstract
A fuse element includes: a first element made of silver or copper, or an alloy comprising silver or copper as a main component thereof; a second element made of silver or copper, or an alloy comprising silver or copper as a main component thereof; and a connecting metal composed of tin or an alloy comprising tin as a main component thereof, connecting an end of the first element to an end of the second element.
Claims16
1:
- A fuse element, comprising:
- a first element made of silver or copper, or an alloy comprising silver or copper as a main component thereof;
- a second element made of silver or copper, or an alloy comprising silver or copper as a main component thereof;
- and
- a connecting metal composed of tin or an alloy comprising tin as a main component thereof, connecting an end of the first element to an end of the second element.
2 more elements
2:
- The fuse element according to claim 1, wherein
- heat generated by an overcurrent flowing through the fuse element melts the connecting metal, and a molten material of the connecting metal melts the end of the first element, thereby blowing at least the first element.
3:
- The fuse element according to claim 1, wherein
- a thickness of the first element is thinner than a thickness of the second element.
4:
- The fuse element according to claim 3, wherein
- the thickness of the first element is half or less of the thickness of the second element.
5:
- A protection element, comprising:
- a first terminal;
- a second terminal;
- and
- a fuse element connected to a current path connecting the first terminal and the second terminal,
- the fuse element comprising:
- a first element made of silver or copper, or an alloy comprising silver or copper as a main component thereof;
- a second element made of silver or copper, or an alloy comprising silver or copper, as a main component thereof, and connected in series to the first element on the current path;
- and
- a connecting metal composed of tin or an alloy comprising tin as a main component thereof, connecting an end of the first element and an end of the second element.
7 more elements
6:
- The protection element according to claim 5, wherein
- heat generated by an overcurrent flowing through the fuse element melts the connecting metal, and a molten material of the connecting metal melts the end of the first element, thereby blowing at least the first element.
7:
- The protection element according to claim 5, wherein
- the thickness of the first element is thinner than the thickness of the second element.
8:
- The protection element according to claim 7, wherein
- the thickness of the first element is half or less of the thickness of the second element.
9:
- The protection element according to claim 5, further comprising
- a heating element, wherein
- the heating element generates heat to melt the connecting metal, and the molten material of the connecting metal melts the end of the first element, thereby blowing at least the first element.
10:
- The protection element according to claim 5, wherein
- the protection element comprises a plurality of the fuse elements, and
- the plurality of the fuse elements are connected in parallel between the first terminal and the second terminal.
11:
- A protection element, comprising:
- a first terminal;
- a second terminal;
- a fuse element connected to a current path connecting the first terminal and the second terminal,
- the fuse element comprising:
- a first element made of silver or copper, or an alloy comprising silver or copper as a main component thereof;
- a second element made of silver or copper, or an alloy comprising silver or copper as a main component thereof, and connected in series to the first element on the current path;
- a third element made of silver or copper, or an alloy comprising silver or copper as a main component thereof, and connected in series with the first element on the current path;
- a connecting metal composed of tin or an alloy comprising tin as a main component thereof, connecting one end of the first element and one end of the second element, and connecting other end of the first element and one end of the third element.
6 more elements
12:
- The protection element according to claim 11, wherein
- heat generated by an overcurrent flowing through the fuse element melts the connecting metal, and a molten material of the connecting metal melts the one or the other end of the first element, thereby blowing at least the first element.
13:
- The protection element according to claim 11, wherein
- a thickness of the first element is thinner than each of a thickness of the second element and a thickness of the third element.
14:
- The protection element according to claim 13, wherein
- the thickness of the first element is half or less of each of the thickness of the second element and the thickness of the third element.
15:
- The protection element according to claim 11, further comprising
- a heating element, wherein
- the heating element generates heat to melt the connecting metal, and the molten material of the connecting metal melts the one end or the other end of the first element, thereby blowing at least the first element.
16:
- The protection element according to claim 11, wherein
- the protection element comprises a plurality of the fuse elements, and
- the plurality of the fuse elements are connected in parallel between the first terminal and the second terminal.