INDUCTOR HAVING NOISE REDUCTION STRUCTURE

摘要

PURPOSE: An inductor with a noise cancellation structure is provided to absorb the vibration generating in the magnetic force changing by covering a magnetic core with a vibration absorber. CONSTITUTION: A magnetic core(11) is accepted in a case(15). A vibration absorber(13) is arranged between the magnetic core and the case and blocks vibration of the magnetic core to be delivered to the case. A coil(17) is wound in the circumference of the case. The vibration absorber is consisted of one of polyurethanes, sponge, melamine resin and silicone base rubber. The case is made from PET(PolyEthylene Terephthalate) or PBT(PolyButylene Terephthalate). The vibration absorber and case are is ring shape corresponding to the magnetic core.