NOISE FILTER DEVICE

摘要

A noise filter device has a coil (31) formed by winding a conductive wire on a magnetic core (32). The noise filter device further has a bracket (21) formed of a magnetic material and grounded. The bracket (21) has a bottom plate (22) and two end plates (23A, 23B) that project from the bottom plate (22). The end plates (23A, 23B) face opposite end surfaces (32M) of the magnetic core (32) with predetermined gaps (Gp) defined between the end plates and the end surfaces. The noise filter device further has capacitors (41) that form part of a noise filter circuit (C) together with the coil (31) and that are connected to the bracket (21). A housing (11) houses the coil (31), the capacitors (41) and the bracket (21) in an at least partly exposed state, and input and output terminals (WH) are provided for the noise filter circuit (C).

主权项

1. A noise filter device, comprising:
an inductance (31); a bracket (21) including a base plate (22) and two end plates (23A, 23B) projecting from the base plate (22), the end plates (23A, 23B) facing opposite end surfaces of the inductance (31) in an axial direction (X) with specified gaps (Gp) between the end plates (23A, 23B) and the end surfaces of the inductance (31), the bracket (21) formed of a magnetic material and grounded; at least one capacitor (41) connected to the bracket (21) and forming part of a noise filter circuit (C) together with the inductance (31); a housing (11; 71) housing the inductance (31), the capacitor (41) and the bracket (21) in an at least partly exposed state; and input and output terminals (WH) connected to the noise filter circuit (C).