US 12,119,194 B2Granted

Fuse and method for manufacturing fuse

AssigneePacific Engineering Corp.

InventorsTakayuki Sasama, Shigeki Yabashi

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Abstract

Provided are a fuse having a structure that facilitates bending of a fuse element, and a method for manufacturing the fuse. In a fuse including a fuse element having a pair of terminal portions, a middle portion provided between the terminal portions, and a fusing portion provided in the middle portion, at least two or more of the middle portions are provided in the terminal portion, at least one of the middle portions is bent along a long direction such that a center side protrudes from long sides on both sides, and the middle portions are disposed to face each other when the terminal portion is folded at a bending point K2 of the terminal portion.

Claims8

Dependent claims

A fuse comprising a fuse element having a pair of terminal portions, at least two or more middle portions provided between the pair of terminal portions, and a fusing portion provided in the middle portion,

wherein the at least two or more middle portions are provided in the pair of terminal portions as an integral part of the pair of terminal portions, the at least two or more middle portions are bent along a long direction such that a center side protrudes from long sides on both sides to an outside of a connection part of the at least two or more middle portions and the pair of terminal portions,
wherein a center side of the connection part is curved towards an outside against a long-direction side part,
wherein a curving direction of the at least two or more middle portions and a curving direction of the connection part is continuous in a same direction, and
the at least two or more middle portions are disposed to face each other when the pair of terminal portions are folded at a bending point of the pair of terminal portions.

1 more element

A method for manufacturing a fuse including a fuse element having a pair of terminal portions, at least two or more middle portions provided between the pair of terminal portions, and a fusing portion provided in the at least two or more middle portions, the method comprising:

punching a single metal plate to form the pair of terminal portions and the at least two or more middle portions between the pair of terminal portions;
bending the at least two or more middle portions along a long direction such that a center side protrudes from long sides on both sides to an outside of a connection part of the middle portions and the pair of terminal portions;
wherein a center side of the connection part is curved towards an outside against a long-direction side part,
wherein a curving direction of the at least two or more middle portions and a curving direction of the connection part is continuous in a same direction, and
folding the pair of terminal portions at a bending point of the pair of terminal portions to dispose the at least two or more middle portions so as to face each other.

2 more elements

Dependencies are inferred from the claim text.

Facts

Application: 17/792,964Filed 10 Dec 2020
Priority: JP 2020-02579819 Feb 2020
Published: US 2023/0051371 A116 Feb 2023
Granted: 15 Oct 2024
Term ends: Not estimatedThe source records don’t support an estimate.

Classification5 codes

H01H 69/02
Apparatus or processes for the manufacture of emergency protective devices: manufacture of fuses
H01H 85/10
Characterised by the shape or form of the fusible member: with constriction for localised fusing
H01H 85/12
Fusible members: two or more separate fusible members in parallel
H01H 2231/026
Applications: car

Family

US 2023/0051371 A1Pre-grant publication · published 16 Feb 2023
US 12,119,194 B2This patent

From the US filing history. Foreign family members aren’t listed.

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