Abstract: An electrical connection arrangement (20) provides an electrical connection between an electrical device (14) inside a vehicle engine casing (10) and an electrical termination (15) outside the casing. The connection arrangement comprises a PCB (21) which is sealed to an edge surface (21) of the casing around an opening (26) therein. The PCB bears a number of electrically conductive tracks (e.g. 22), one part (e.g. 22a) of each track being located inside the housing and being connected to the device (14) and another part (e.g. 22b) of each track being located outside the housing and being connected to a termination (15).

Abstract: A current resistive terminal block for connection to outer pin segment means projecting outwardly from a body member of a hermetic terminal assembly sealed in a housing wall, the terminal block including a main channel means to protect the outer pin segment means and diffuse possible leakage from the terminal assembly and subchannel means to encase and secure fused lead end wire connection means for the outer pin segment means.

Abstract: A hermetic terminal for carrying electric current into the housing of a hermetic compressor, including a cup-shaped metallic body member having a plurality of metallic conductor pins extending therethrough which are electrically insulated from the body member by hermetic glass seals. The body member includes a closed end having an inwardly facing contoured end surface, to which a correspondingly contoured contacting surface of an electrically insulating cap member is secured by means of a uniform layer of electrically insulating bonding material therebetween. The pins extend through passages in the cap member, whereby the cap member defines an oversurface distance between the pins and the body member. A portion of the oversurface distance is protected from contaminants which the compressor housing by means of an annular gap between the outer periphery of the cap member and the sidewall of the body member, and by respective annular gaps between the pins and corresponding passages in the cap member.

Abstract: A hermetic terminal for carrying electric current into the housing of a hermetic compressor, including a metallic body member formed with three collar portions that define apertures through which respective fusible terminal pin assemblies extend. Each terminal pin assembly includes two electrically conducting pin segments interconnected by an electrically insulating sleeve member having opposite open ends into which respective ends of each pin segment are telescopingly received. The sleeve member and pin segments define a closed cavity in which a cylindrical fusible link is disposed. Opposite ends of the fusible link are received within respective counterbores in axial ends of the pin segments within the closed cavity, and are retained therein by a brazed joint. Each pin assembly is sealingly retained within a respective collar portion of the terminal body by a glass seal, which contacts the insulating sleeve and optionally surrounds one of the joints between the insulating sleeve and the pin segments.

Abstract: A shaft-grounding stuffing box cover (10) includes an annular nut-base (12) that includes a central aperture (14) through which a rotating shaft (16) passes. Two grounding tabs (28 and 30) project longitudinally upwards from the proximal end of the nut-base (12) adjacent the rotating shaft. The grounding tabs include diametrically opposed radial openings (18) that are longitudinally displaced from each other for the mounting of conductive brush contacts (20) therein. The conductive brush contacts are biased against the rotating shaft by backing springs (46), and are retained within the radial openings by hollow bolts (48). The hollow bolts, spring, and brush contacts form an electrically conductive path to the rotating shaft for grounding of the shaft.

Abstract: A compressor driven by a three phase electric motor is contained within a housing that is filled with refrigerant and is hermetically sealed with a terminal board. The terminal board has three electrical feedthrough terminals for coupling three of the motor's six winding leads to a three phase power source. An insulator having a fourth terminal is disposed inside the housing and is attached to one of the feedthrough terminals. In a high voltage application, such as 4160 volts, the fourth terminal provides a convenient location to attach the motor's three remaining leads to a common point. In a low voltage hookup, such as 2400 volts, the fourth terminal is disregarded, and the three remaining leads are separated and paired up with the three leads that are connected to the feedthrough terminals.

Abstract: A collector ring installation and lead terminating assembly comprising cooperating terminals (40,40'), poke-in terminals (60,60'), and collector ring leads (50,50') for forming an electrical connection between a collector ring assembly (30) and a rotor winding of a rotor (10).