Patent ID: 7730910
Filing Date: 2010-06-08
Classification: D03C,H02K

Abstract:
1. In a shed forming device for a weaving loom equipped with several heddle frames and including a pulling system connected, for each heddle frame, to a self-contained assembly for operating the pulling system, the self-contained assembly comprising at least one electric motor unit housed in a casing and at least one motor control unit having an electrical circuit for controlling electric power to the at least one electric motor unit, wherein the self-contained assembly also includes a support placed close to the at least one electric motor unit, the at least one motor control unit having the electrical circuit being mounted on the support, the support having at least one cooling duct extending therethrough for the flow of a heat-transfer fluid and which at least one cooling duct is in heat exchange relationship with at least the electrical circuit, a cooling circuit in heat exchange relationship with the at least one electric motor unit, the cooling circuit communicating with the at least one cooling duct such that the flow of heat-transfer fluid is used to cool both the electrical circuit and the at least one electric motor unit, and the self-contained assembly including damping elements placed between the support and the casing of the at least one electric motor unit for reducing vibration between the at least one electric motor unit and the support.