Electric power connection part of electromagnetic clutch field coil assembly
View Patent ↗An electric power connection part of an electromagnetic clutch field coil assembly connected with an electric power connector at a side of a vehicle engine, includes a housing assembly connected to the field coil assembly with electric wires, which is extracted therefrom, interposed therebetween; a discharge device for absorbing a surge voltage; and a magnetic field elimination device for eliminating a residual magnetic field are injection molded and combonined within the housing assembly. Accordingly, the electric power connection part has an advantage in that it is not directly influenced by heat radiated from a field coil assembly so that electric/electronic devices can be prevented from being damaged; since an epoxy applying process for attaching electric/electronic devices such as a discharge device and a magnetic field elimination device is omitted, a manufacturing process is greatly simplified; and the number of components are reduced so that manufacturing process thereby decreasing costs.
1. An electric power connection part connected to an electromagnetic clutch field coil assembly, the electric power connection part comprising:
a terminal for electrically connecting with an electric power connector at a side of a vehicle engine;
a couple of electric wires extending from the field coil assembly to be directly connected to the terminal;
a discharge device having a lead wire connected with one of the electrical wires for absorbing a surge voltage;
a magnetic field elimination device having another lead wire connected with another electric wire for eliminating a residual magnetic field, wherein the ends of the discharge device and the magnetic field elimination device opposite the connections thereof to the lead wires are connected together;
holders fixing the discharge device and the magnetic field elimination device and comprising a unitary or single piece; and
a housing assembly injection molded as a whole in the state with the terminal electrically connected to (a) the discharge device and (b) the magnetic field elimination device which are fixed by the holders, and (c) the couple of wires.
2. The electric power connection part of claim 1 , wherein the discharge device is a diode.
3. The electric power connection part of claim 1 , wherein the magnetic field elimination device is a resistor.
4. The electric power connection part of claim 1 , wherein the housing assembly includes a bracket for mounting the housing assembly on a compressor.
5. The electric power connection part of claim 4 , wherein the housing assembly and the bracket are formed in a single body by means of injection molding.