Patent EA-004839-B1 (EA)
Title: Actuator for controlling fittings
Inventor: MALUS PETER
IPC: H01R13/527
Filed: 2001-11-17
Abstract: 1. An actuator for controlling fittings comprising an explosion-protected housing and a pressure-tight separating wall with sealed bushings for electric lines between the inside of the housing and an outer terminal compartment is provided, wherein electrical connections with connection terminals for supply lines are located in said outer terminal compartment, characterized in that a support part (7) which forms the separating wall (6) is provided for the connection terminals (10) and is connected to pin-like extensions (11), said pin-like extensions penetrate the separating wall (6) and plug-in contact elements (12) are provided at the inner end of said pin-like extensions (11), for contacting with mating plug-in contact elements (13). 2. The actuator for controlling fittings according to claim 1, characterized in that the support element (7) is inserted into a main frame member (8) shaped as a pipe, which is inserted as an embedded piece between the housing (2) and an outer closing lid (9) limiting the compartment (5) for connection of supply lines. 3. The actuator for controlling fittings according to claim 1 or 2, characterized in that the support element (7) is designed as a die casting plastic piece and due to such forming is tightly connected to the main frame member (8) and that the connections (10) to terminals with the plug-in contact elements (12) on pin-like extensions (11) provided between them are fit securely into the support element (7). 4. The actuator for controlling fittings according to any one of claims 1-3, characterized in that the main frame member (8) is made of metal, preferably of aluminum by die casting which at its connection ends is provided with connection flanges having receiving compartments for sealing means. 5. The actuator for controlling fittings according to any one of claims 1-4, characterized in that a holder (14) is provided for the mating plug-in contact elements (13), the holder is provided with receiving cavities (25) located in coordination with the plug-in contact elements (12) of the support element (7) for arranging therein the mating plug-in contact elements (13). 6. The actuator for controlling fittings according to claim 5, characterized in that the main frame member (8) and the holder (14) are provided with guides for proper elements joining, and preferably at least one groove (15) is provided in the main frame member (8) and a projection (10) respectively on the holder (14). 7. The actuator for controlling fittings according to claim 5 or 6, characterized in that at least one fixing element is provided on the main frame element (8) in the axial direction for fixing the holder (14) for the mating plug-in contact elements (13), the fixing element is preferably an annular groove comprising a fixing ring (18). 8. The actuator for controlling fittings according to any one of claims 1-7, characterized in that the plug-in contact elements (12) of the support element (7) are located in groups biased relative each other planes, and the mating plug-in contact elements (13) of the holder (14) are located in planes biased relative to each other in a supplemented manner. 9. The actuator for controlling fittings according to any one of claims 1-8, characterized in that the plug-in contact elements (12) of the support element (7) are sockets and the mating plug-in contact elements (13) of the holder (14) are plugs. 10. The actuator for controlling fittings according to any one of claims 1-9, characterized in that the support element (7) and the holder (14) are adapted to input a plurality of the plug-in contact elements (12) and the mating plug-in contact elements (13), for example, more than 40 contact elements correspondingly. 11. The actuator for controlling fittings according to any one of claims 1-10, characterized in that the main frame element (8), the support element (7), the pin-like extensions (11) are made of a material having about similar thermal extension coefficient. 12. The actuator for controlling fittings according to any one of claims 1-11, characterized in that annular elements mating with each other geometrically in the form of annular grooves and projections are provided in the connection zone between the main frame element (8) and the support element (7). 13. The actuator for controlling fittings according to any one of claims 1-12, characterized in that an elastic sealing, preferably in the form of at least one ring (20) of circular section is provided for particular tight sealing provided in the connection zone between the main frame element (8) and the support element (7). 14. The actuator for controlling fittings according to any one of claims 1-13, characterized in that the pin-like extensions (11) are provided with annular grooves (22) or other similar configurations, if necessary, with corrugation for increasing surface area.