Electromagnetic noise absorber
AssigneeKitagawa Industries Co., Ltd.
InventorToru Matsuzaki
Life of this patent
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Abstract
An electromagnetic noise absorber to be attached around an electric cable to attenuate noise transmitted through the electric cable. The electromagnetic noise absorber comprises a strip-like base material and a plurality of ferrite pieces fixed to the strip-like base material. The plurality of ferrite pieces are formed by fixing a sheeted ferrite sintered body to the strip-like base material, and subsequently splitting the sheeted ferrite sintered body along split lines oblique with respect to a longitudinal direction of the strip-like base material. The electromagnetic noise absorber is wound around a circumference of the electric cable such that the split lines are parallel to an axial direction of the electric cable, thereby being attached in a spiral manner around the circumference of the electric cable.
Claims7
An electromagnetic noise absorber to be attached around an electric cable to attenuate noise transmitted through the electric cable, the electromagnetic noise absorber comprising:
- a strip-like base material;
- and
- a plurality of ferrite pieces fixed to the strip-like base material,
- wherein the plurality of ferrite pieces are formed by fixing a sheeted ferrite sintered body to the strip-like base material and subsequently splitting the sheeted ferrite sintered body along split lines oblique with respect to a longitudinal direction of the strip-like base material, and the plurality of ferrite pieces are also split along split lines extending parallel to the longitudinal direction of the strip-like base material;
- and the electromagnetic noise absorber is wound around a circumference of the electric cable such that the split lines, which extend obliquely with respect to the longitudinal direction of the strip-like base material, are parallel to an axial direction of the electric cable, thereby being attached in a spiral manner around the circumference of the electric cable.
Dependencies are inferred from the claim text.