Device for protecting electrical equipment against overvoltages

A technology of overvoltage protection and electronic equipment, which is applied in the direction of emergency protection circuit devices, emergency protection circuit devices, circuit devices, etc. for limiting overcurrent/overvoltage, and can solve the problems of mechanical separation and loosening, etc.
CN101479898BInactive Publication Date: 2012-06-27OBO BETTERMANN GMBH & CO KG
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Patent Information

Authority / Receiving Office
CN Ā· China
Patent Type
Patents(China)
Current Assignee / Owner
OBO BETTERMANN GMBH & CO KG
Publication Date
2012-06-27
Estimated Expiration
Not applicable Ā· inactive patent

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Abstract

The invention relates to a device for the protection of electrical equipment against overvoltages, consisting of a housing (1, 2) and overvoltage protection elements arranged within the housing, a printed circuit board (8) being arranged in the housing (1, 2), with the varistors (6) and connection terminals (3, 4, 5) mounted thereon, and fuse strips (9) soldered to the circuit board (8), at leastone of which is soldered to the contact point (10) of each varistor (6), wherein in the event of a solder joint becoming overheated due to an overvoltage event, a contact separator (11) is pushed into the gap between the fuse strip (9) and a varistor (6), breaking the solder connection, and holding the fuse strip (9) away from the varistor (6) in the region of the solder joint (10).
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Description

technical field

[0001] The invention relates to a device for overvoltage protection of electronic equipment, which consists of a housing, an overvoltage protection element arranged inside the housing, and a terminal for multiple phase conductors, a neutral conductor and a protective conductor (PE -Leiter), wherein a varistor is inserted between the phase and neutral conductors as an overvoltage protection element, and a spark gap is inserted between the neutral conductor and the protective conductor, wherein a fuse link is arranged in the housing, these At least one fuse link in each of the fuse links is welded on the contact position of the varistor; and a separation slider is arranged between the fuse link and the surface on which the fuse link of the varistor is welded. The spring is held preloaded in the first functional position, in which the components of the separating slide abut against the fuse link close to the welding position of the fuse link on the varistor, and s...

Claims

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