Patent classifications
H01H85/041
CHIP FUSE MANUFACTURING METHOD AND CHIP FUSE
A method for manufacturing a chip fuse, comprises: a liquid film forming step for forming a liquid film of dispersion liquid having metal nanoparticles dispersed therein on a principal surface of a substrate; a fuse film forming step for forming a fuse film on the principal surface by irradiating the liquid film with laser light; and a first terminal forming step for forming first terminals that each connects to the fuse film on each of both end sides in a longitudinal direction of the fuse film on the principal surface.
Mechanical fuse device
Disclosed herein are efficient mechanical fuse devices that are capable of functioning at high current levels. These devices comprise mechanical features configured such that the fuse devices have a non-triggered state, which allows current to flow through the device, and a triggered state, which does not allow current to flow through the device. In some embodiments, the devices are configured such that a certain pre-determined current level flowing through the device will generate a sufficient electromagnetic field to cause the mechanical elements to transition the fuse device into the triggered state and thus interrupt a connected electrical circuit, device or system. In some embodiments, these devices can also comprise hermetically sealed components. In some embodiments, the fuse devices can comprise pyrotechnic features.
Mechanical fuse device
Disclosed herein are efficient mechanical fuse devices that are capable of functioning at high current levels. These devices comprise mechanical features configured such that the fuse devices have a non-triggered state, which allows current to flow through the device, and a triggered state, which does not allow current to flow through the device. In some embodiments, the devices are configured such that a certain pre-determined current level flowing through the device will generate a sufficient electromagnetic field to cause the mechanical elements to transition the fuse device into the triggered state and thus interrupt a connected electrical circuit, device or system. In some embodiments, these devices can also comprise hermetically sealed components. In some embodiments, the fuse devices can comprise pyrotechnic features.
Temperature sensitive pellet type thermal fuse
A temperature-sensitive pellet type thermal fuse having a metal case (10); a first lead wire (L1) on an open end of the metal case (10) and insulated from the metal case (10); a second lead wire (L2) electrically connected to the bottom wall (12) of the metal case (10); a temperature-sensitive pellet (30) installed inside the case (10); a movable terminal (60) being in contact with the second lead wire (L2) and a fixed terminal (40) when below a fuse cutoff operation temperature, and being in contact with the metal case (10) but separated from the second lead wire (L2) when above the fuse cutoff operation temperature; the movable terminal (60) having a movable contact element (50) slidably contacting with the inner wall of a through hole (41) of the fixed terminal (40) to electrically connect to the fixed terminal (40).
Temperature sensitive pellet type thermal fuse
A temperature-sensitive pellet type thermal fuse having a metal case (10); a first lead wire (L1) on an open end of the metal case (10) and insulated from the metal case (10); a second lead wire (L2) electrically connected to the bottom wall (12) of the metal case (10); a temperature-sensitive pellet (30) installed inside the case (10); a movable terminal (60) being in contact with the second lead wire (L2) and a fixed terminal (40) when below a fuse cutoff operation temperature, and being in contact with the metal case (10) but separated from the second lead wire (L2) when above the fuse cutoff operation temperature; the movable terminal (60) having a movable contact element (50) slidably contacting with the inner wall of a through hole (41) of the fixed terminal (40) to electrically connect to the fixed terminal (40).
High voltage cartridge fuse assembly
An electrical cartridge fuse including a cylindrical housing, first and second terminals coupled to the cylindrical housing, and a fuse element inside the housing and interconnected between the first and second terminals. The fuse element has a main body having at least five openings formed therein in a single line along a longitudinal axis of the fuse element, a guide element formed on a first end of the main body, and a hanger element formed on the second end of the main body. The cartridge fuse has a package size of about 6×32 mm and a voltage rating of at least 500 VADC, a 20 kA IR Rating, a current rating of 12 A to 30 A and a defined opening time at 100% rated current.
HIGH VOLTAGE CARTRIDGE FUSE ASSEMBLY
An electrical cartridge fuse including a cylindrical housing, first and second terminals coupled to the cylindrical housing, and a fuse element inside the housing and interconnected between the first and second terminals. The fuse element has a main body having at least five openings formed therein in a single line along a longitudinal axis of the fuse element, a guide element formed on a first end of the main body, and a hanger element formed on the second end of the main body. The cartridge fuse has a package size of about 6×32 mm and a voltage rating of at least 500 VADC, a 20 kA IR Rating, a current rating of 12 A to 30 A and a defined opening time at 100% rated current.
ALUMINUM ALLOY MINIATURE CARTRIDGE FUSES
A high-capacity miniature cartridge fuse is provided. The fuse includes a housing, a fusible element, and first and second ferrules fabricated from aluminum alloy. The aluminum alloy ferrules is fabricated to withstand high pressure generated inside the housing as a result of arcing and to stay in place after repeated temperature and pressure changes caused by at least one of i) current or ii) arcing during short circuit events. The aluminum alloy plated with a first metal plating fabricated from a first metal different from the aluminum alloy and a second metal plating fabricated from a second metal different from the first metal, the second metal plating overlaying the first metal plating. Each of the first and second ferrules includes a side wall and an end wall, wherein the end wall includes a boss extending toward an interior of the housing.
Fusible safety disconnect in solid state circuit breakers and combination motor starters
An isolation disconnect assembly for an insulated gate bipolar transistor assembly is provided. The isolation disconnect assembly includes a conductor assembly and a clinch joint magnetic actuator.
Fusible safety disconnect in solid state circuit breakers and combination motor starters
An isolation disconnect assembly for an insulated gate bipolar transistor assembly is provided. The isolation disconnect assembly includes a conductor assembly and a clinch joint magnetic actuator.