Contact device for a high resistive power contactor
AssigneeSchneider Electric Industries SAS
InventorsPatrick Larcher, Julien Guibert, Joel Reboulet
Life of this patent
Estimating the term…
Abstract
A contactor comprises, for each phase, a pair of contact devices which comprise a connection strip and at least two conductors provided with a stationary contact, and a movable contact bridge able to close the two stationary contacts or not. According to the invention, the contact device is formed from superposition of a number of pieces equal to the number of conductors, each piece comprising one of the conductors and a connection part corresponding to the connection strip but of smaller thickness. Each of the pieces can be made from folded metal. The connection parts are coupled to one another to form the connection strip by means of holes at the same time as the sets of bars are secured thereto.
Claims20
A contact device for an electrical contactor comprising:
- a substantially flat connection strip having a strip thickness and designed for connection of power supply bars of the contactor;
- at least two conductors extending longitudinally from an end secured to the connection strip to a stationary contact support designed to operate in conjunction with a movable contact of the contactor;
- wherein the contact device is composed of at least two pieces, each piece being unitary and made from folded conducting metal;
- each piece comprises one of the conductors and a connection part;
- and each connection part is of identical shape and of smaller thickness than the connection strip of the device so that superposition of said parts forms the connection strip.
A contact device for an electrical contactor comprising:
- a substantially flat connection strip having a strip thickness greater than 8 mm and designed for connection of power supply bars of the contactor;
- two conductors extending longitudinally from an end secured to the connection strip to a stationary contact support designed to operate in conjunction with a movable contact of the contactor;
- wherein the contact device is composed of two unitary pieces made from folded conducting metal, each piece comprising one of the conductors and a connection part which is of identical shape and of smaller thickness than the connection strip of the device so that superposition of said parts forms the connection strip.
An three phase electrical contactor comprising a case, three pairs of similar stationary contact devices partially positioned in the case and at least one movable contact bridge located in the case, said at least one bridge being able to establish the connection between the stationary contacts of each pair of contact devices;
- wherein each contact device comprises a substantially flat connection strip designed for connection of power supply bars of the contactor and at least two conductors extending longitudinally from an end secured to the connection strip to a stationary contact support, the contact devices being juxtaposed in the plane of their connection strips;
- and wherein each contact device is composed of at least two unitary pieces made from folded conducting metal, each piece comprising one of the conductors and a connection part of identical shape and of smaller thickness than the connection strip of the device so that superposition of said parts forms the connection strip.
Dependencies are inferred from the claim text.