Fastening device for an actuator and a housing, in particular for a motor vehicle

Device as claimed in one of the preceding claims, characterized in that the connecting flanges (20, 40) have mating helical connecting shapes on at least a portion of their wall, and in that the male connecting flange shapes (20) comprise discontinuous helical grooves (200).

Device as claimed in one of the preceding claims, characterized in that the connection between the flanges (20, 40) is of the bayonet type.

Device as claimed in one of the preceding claims, characterized in that the fastening means further comprise a stop device (462, 23) designed to block the rotation of the actuator in relation to the housing or support (6), in the stop position.

Device as claimed in one of the preceding claims, characterized in that it further includes a locator (500) comprising three sub-locators (501, 502, 503) placed so as to form an arc of circle, the center of this arc of circle being located by the axis of rotation D of the flange (20) of the actuator (2), this arc of circle arrangement limiting the placement of the actuator (2) to a single position in relation to the housing (4) or support (6).

Device as claimed in one of the preceding claims, characterized in that it further comprises at least one second stabilizing means (7′) located between the connecting surface (28) of the actuator (2) and the connecting surface (48, 68) of the housing (4) or support (6), this second stabilizing means (7′) holding in contact at least two mating helical connecting shapes.

Device as claimed in one of the preceding claims, characterized in that the fastening means further include two substantially L-shaped axial holding pins (25, 45) arranged, respectively, on the connecting surface (48, 68) of the housing (4) or the support (6) and on the connecting surface (28) of the actuator, the L-shape of each pin having a first branch (251, 451) extending substantially perpendicular to the corresponding connecting surface (28, 48, 68) and a second branch (252, 452) substantially parallel to the corresponding connecting surface, and in that the second branch (452) of the pin of the housing is shaped so as to press against the second branch (252) of the pin of the actuator, towards the interior of the housing, when the actuator reaches its stop position.

Device as claimed in one of the preceding claims, characterized in that the connecting flange (20) of the actuator (2) is shaped so as to obstruct at least one opening (8) in the connecting surface (48, 68) supporting the mating flange (40), the opening (8) being arranged on the interior or exterior periphery of said mating flange (40).

Device as claimed in one of the preceding claims, characterized in that the connecting flange (20) of the actuator (2) includes helical connecting shapes (200) on both an interior surface and an exterior surface of its wall or on one of these surfaces of its wall.

Device as claimed in one of the preceding claims, characterized in that the movable member (410) has a connecting bearing (465) and the actuator has a drive shaft (22), the connecting bearing being shaped so as to be connected to the drive shaft of the actuator during the fastening of the connecting flanges (20, 40).

Device as claimed in one of the preceding claims, characterized in that the actuator (2) has a double-ended (22a, 22b) drive shaft (22) whose first end (22a) is located on the same side as the connecting flange (20), and whose second end (22b) is located on the opposite side in relation to the body of the actuator (2) with this connecting flange (20).

Heating and air conditioning system comprising an airflow housing (4) in which a damper (41) is housed, the damper being driven by an actuator (2), characterized in that it comprises a fastening device, as claimed in any of claims 1 to 36, for making the actuator integral with the housing.