NOISE ELIMINATION CIRCUIT OF WIRE HARNESS, AND WIRE HARNESS ASSEMBLY INCLUDING THE SAME

• Main Author: YAMADA KUNIHIKO
• Format: Patent
• Language: English; Japanese
• Published: 16.11.2015
• Subjects: BASIC ELECTRONIC CIRCUITRY; ELECTRICITY; IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS

PROBLEM TO BE SOLVED: To provide a noise elimination circuit of wire harness capable of eliminating noise accurately.SOLUTION: A noise elimination circuit 10 for eliminating noise of a wire harness WH1 routed in an automobile is constituted of a brach 4 branched from the trunk 6 of the wire harness WH1, and a noise filter 1 provided in the branch 4 and grounded. The branch 4 has a first circuit 11 connected electrically with the trunk 6 and extending from the proximal end to the distal end of the branch 4, a second circuit 12 connected electrically with the trunk 6 and extending from the proximal end to the distal end of the branch 4, and connected electrically with the first circuit 11 at the distal end of the branch 4, and a ground conductor 13 extending from the proximal end to the distal end of the branch 4, and arranged between the first circuit 11 and second circuit 12, where one end is grounded and the other end is open. 【課題】ノイズを精度良く除去することができるワイヤハーネスのノイズ除去回路を提供する。【解決手段】自動車に配索されるワイヤハーネスＷＨ１のノイズを除去するノイズ除去回路１０は、ワイヤハーネスＷＨ１の幹線６から分岐した分岐部４と、分岐部４に設けられ、接地されるノイズフィルタ部１と、で構成されている。分岐部４は、幹線６と電気的に接続されるとともに当該分岐部４の基端部から先端部まで延びた第１の回路部１１と、幹線６と電気的に接続されるとともに当該分岐部４の基端部から先端部まで延び、当該分岐部４の先端部において第１の回路部１１と電気的に接続された第２の回路部１２と、当該分岐部４の基端部から先端部まで延びるとともに第１の回路部１１と第２の回路部１２との間に配置され、一端が接地されるとともに他端がオープンとされた接地導体１３と、を有している。【選択図】図１