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US 12,597,540 B2Granted
Overvoltage protection device and method of manufacturing such a device
AssigneeCitel
InventorsVincent Crevenat, Vincent Lapauw
Life of this patent
Estimating the term…
Abstract
A method of manufacturing an overvoltage protection device and a protection device obtained via the method are described. The method includes the steps of (1) electrically connecting a first electrode of a first protection element to a first electrode of a second protection element via a heat-sensitive disconnector device, (2) procuring a pre-assembled arc-extinguishing device that has a cassette, an insulating blade mobile inside the cassette, and at least one elastic element, and (3) moving the arc-extinguishing device until it reaches a final mounting position in which the heat-sensitive disconnector device bears against the insulating blade and pushes the insulating blade in the direction of a retracted position.
Claims11
A method of manufacturing an overvoltage protection device (1) including the following steps:
- procuring at least one first protection element (6) and one second protection element (7) each including a first electrode (14, 15) and a second electrode (13, 16),
- electrically connecting the first electrode (14) of the first protection element (6) to the first electrode (15) of the second protection element (7) by means of a heat-sensitive disconnector device (5), the heat-sensitive disconnector device (5) being able to pass, if said heat-sensitive disconnector device (5) is subjected to a temperature above a threshold, from a connected state to a disconnected state in which the first electrode (14) of the first protection element (6) and the first electrode (15) of the second protection element (7) are disconnected from one another,
- procuring a pre-assembled arc-extinguishing device (22) comprising a cassette (33), an insulating blade (34) mobile inside the cassette (33) between a retracted position and a deployed position, and at least one return elastic element (54, 55) that is adapted to urge said insulating blade (34) relative to the cassette (33) in the direction of the deployed position, the cassette (33) including slideways (39, 40, 41, 42),
- moving the arc-extinguishing device (22) relative to the first and second protection elements (6, 7) and to the heat-sensitive disconnector device (5) until a final mounting position is reached in which the heat-sensitive disconnector device (5) bears against the insulating blade (34) and pushes said insulating blade (34) in the direction of the retracted position, said insulating blade (34) being, in said final mounting position of the arc-extinguishing device, adapted to be moved relative to the cassette (33) toward the deployed position and to be introduced between the first electrodes (14, 15) of the first and second protection elements (6, 7) when the heat-sensitive disconnector device (5) goes to the disconnected state,
- during said movement of the arc-extinguishing device (22) relative to the first and second protection elements (6, 7) and to the heat-sensitive disconnector device (5), projecting portions (45, 46, 47, 48) of the first electrode (14) of the first protection element (6) and of the first electrode (15) of the second protection element (7) sliding in the slideways (39, 40, 41, 42) of the cassette (33),
- mounting in a casing (10) the first protection element (6), the second protection element (7) and the arc-extinguishing device (22) in the final mounting position.
3 more elements
An overvoltage protection device (1) comprising:
- a casing (10),
- at least one first protection element (6) and one second protection element (7) accommodated in the casing (10) and each including a first electrode (14, 15) and a second electrode (13, 16), the first electrode (14) of the first protection element (6) and the first electrode (15) of the second protection element (7) being connected by means of a heat-sensitive disconnector device (5), the heat-sensitive disconnector device (5) being adapted, if said heat-sensitive disconnector device (5) is subjected to a temperature exceeding a threshold, to go from a connected state to a disconnected state in which the first electrode (14) of the first protection element (6) and the first electrode (15) of the second protection element (7) are disconnected from one another,
- a pre-assembled arc-extinguishing device (22) accommodated in the casing (10) and comprising a cassette (33), an insulating blade (34) mobile inside the cassette (33) between a retracted position and a deployed position and at least one return elastic element (54, 55) that is adapted to urge said insulating blade (34) relative to the cassette (33) in the direction of the deployed position, said arc-extinguishing device being positioned relative to the first and second protection elements (6, 7) and to the heat-sensitive disconnector device (5) in such a manner that the insulating blade bears against the heat-sensitive disconnector device (5) and is retained by the latter in the retracted position, said insulating blade being configured to be moved relative to the cassette (33) toward the deployed position and to be introduced between the first electrodes (14, 15) of the first and second protection elements (6, 7) when the heat-sensitive disconnector device (5) goes to the disconnected state, wherein projecting portions (45, 46, 47, 48) of the first electrode (14) of the first protection element (6) and of the first electrode (15) of the second protection element (7) slide into slideways (39, 40, 41, 42) of the cassette (33).
Dependencies are inferred from the claim text.