Fuse and on-vehicle device
AssigneesAutonetworks Technologies, Ltd., Sumitomo Wiring Systems, Ltd., Sumitomo Electric Industries, Ltd., Pacific Engineering Corp.
InventorsRyosuke Masuda, Masayuki Kato, Akihiro Oda, Yu Kuya, Chikako Okamoto
Life of this patent
Estimating the term…
Abstract
An on-vehicle device is provided with a fuse. A plurality of terminals each have a long-plate shape and are aligned with each other. A fusible portion is connected to two of the plurality of terminals. A housing covers a part of the plurality of terminals and the fusible portion and has heat resistance equal to or higher than 300 degrees. Current flows through the fusible portion. The fusible portion is blown out in the case where the temperature of the fusible portion exceeds a predetermined temperature.
Claims5
A fuse to be provided in an on-vehicle device, comprising:
- a plurality of terminals each having a long-plate shape that are aligned;
- a fusible portion connected to two of the plurality of terminals;
- and
- a housing covering the fusible portion and a part of the plurality of terminals, wherein
- the fusible portion is blown out in a case where a temperature of the fusible portion exceeds a predetermined temperature,
- the housing has heat resistance equal to or higher than 300 degrees celsius,
- each terminal has
- a metal body,
- terminal plating made of tin covering a surface of the metal body,
- a first plate portion having a long-plate shape a part of which is covered with the housing, and
- a second plate portion connected to the first plate portion,
- for each of the plurality of terminals,
- one end of the first plate portion protrudes from a common face of the housing,
- the second plate portion protrudes from part of a leading end surface of the first plate portion that protrudes from the housing, and
- a cross-sectional area of the second plate portion is smaller than a cross sectional area of the first plate portion.
An on-vehicle device, comprising:
- a fuse;
- and
- a circuit board to which the fuse is attached, wherein
- the fuse has
- a plurality of terminals each having a long-plate shape that are aligned with each other,
- a fusible portion connected to two of the plurality of terminals,
- a housing covering the fusible portion and a part of the plurality of terminals and having heat resistance,
- current flows through the fusible portion,
- the fusible portion is blown out in a case where a temperature of the fusible portion is equal to or higher than a predetermined temperature,
- the housing has heat resistance equal to or higher than 300 degrees celsius,
- each terminal has
- a metal body,
- terminal plating made of tin covering a surface of the metal body,
- a first plate portion having a long-plate shape a part of which is covered with the housing, and
- a second plate portion connected to the first plate portion, wherein
- for each of the plurality of terminals,
- one end of the first plate portion protrudes from a common face of the housing,
- the second plate portion protrudes from part of a leading end surface of the first plate portion that protrudes from the housing,
- a cross-sectional area of the second plate portion is smaller than a cross sectional area of the first plate portion,
- the circuit board has
- an insulating substrate,
- a plurality of through holes that penetrate the insulating substrate, and
- a plurality of substrate plating coating the insulating substrate, and
- the plurality of terminals are respectively inserted into the plurality of through holes and connected to the plurality of substrate plating with solder.
Dependencies are inferred from the claim text.