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Conductive circuit with noise filter

A technology of noise filter and conductive circuit, which is applied to the parts of conductive core, circuit or fluid pipeline, strip/foil conductor, etc., which can solve the problem of difficult surge noise and achieve good operating efficiency

Active Publication Date: 2022-05-27
AUTONETWORKS TECH LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, it is difficult to effectively reduce the surge noise that occurs in the special frequency band of the inverter device by enclosing the wire harness with braided wires

Method used

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  • Conductive circuit with noise filter
  • Conductive circuit with noise filter

Examples

Experimental program
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Embodiment 1

[0021] see below Figure 1 to Figure 2 , Example 1 which embodies the present invention will be described. The conductive circuit A with a noise filter in the first embodiment is arranged between the electric motor 50 and the inverter device 52 mounted on an electric vehicle (not shown) such as an electric vehicle or a hybrid vehicle. In this electric vehicle, the motor case 51 serving as the housing of the electric motor 50 , the inverter housing 53 serving as the housing of the inverter device 52 , and the shield layer 45 connecting the two housings 51 and 53 constitute the housing grounding 54.

[0022] The conductive circuit A with a noise filter includes a U-phase line 11u (conductive circuit body according to claims), a V-phase line 11v (conductive circuit body according to claims), and a W-phase line constituting the three-phase AC circuit 10 11w (conductive circuit body according to claim); a noise filter 15 for reducing surge noise; a shielding layer 45; a module fo...

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PUM

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Abstract

Improves work efficiency when wiring inductors. The conductive circuit (A) with noise filter has: a plurality of conductive circuit bodies (11u, 11v, 11w); a plurality of insulating layers (12u, 12v, 12w) surrounding the plurality of conductive circuit bodies (11u, 11v, 11w ) outer surface; a plurality of conductors (16u, 16v, 16w), which form capacitors (17u, 17v, 17w); a plurality of inductors (30u, 30v, 30w), which are respectively connected to a plurality of conductors (16u, 16v, 16w); a conduction member (38), which has a plurality of fitting parts (40) , a plurality of inductors (30u, 30v, 30w) can be respectively fitted to a plurality of fitting parts (40).

Description

technical field [0001] The present invention relates to conductive circuits with noise filters. Background technique [0002] Patent Document 1 describes a technique in which, when a wire harness composed of a three-phase AC electric wire is routed between an electric motor and an inverter device of an electric vehicle, as a noise countermeasure in the wire harness, the wire harness is surrounded by a braided wire, and the wire harness is surrounded by a braided wire. Both ends of the braided wire are connected to the shielding box of the motor and the shielding box of the inverter device. Shielding the wire harness with the braided wire in this way can prevent noise emitted from the motor, the inverter device, and the wire harness from affecting surrounding equipment and circuits. [0003] However, the method of surrounding the wire harness with the braided wire is difficult to effectively reduce the surge noise that occurs in a specific frequency band of the inverter devi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H03H7/01B60R16/02
CPCB60R16/02H01F2017/065H03H1/0007H01R13/719H03H7/0115H05K5/0247B60R16/0215H01B7/0018H02M7/003H03H7/09H03H2001/0092H05K9/0049
Inventor 平田启二相泽武史
Owner AUTONETWORKS TECH LTD