SOLENOID VALVE COIL HAVING AN INTEGRATED BOBBIN AND FLUX RING ASSEMBLY

摘要

A coil assembly for a solenoid valve (40) includes a bobbin (44) formed from an electrically insulative material. A bore extends axially through the bobbin. A first flux ring (64) having a sleeve (66) extending axially from an annular base (68) is mounted upon a first end of the bobbin with the sleeve extending into the bobbin bore. Similarly, a second flux ring (70) also having a sleeve (72) extending from an annular base (74) is mounted upon a second end of the bobbin that is opposite from the first flux ring with its sleeve extending into the bobbin bore. The flux rings are formed from a magnetically permeable material that has a high heat conductivity . Magnet wire is wound upon the assembled bobbin and flux rings to form the coil assembly.