MEASURING DEVICE FOR A CONTACTLESS CURRENT MEASUREMENT

摘要

A current measuring device for at least one contactless current measurement on an electric conductor. At least one magnetic field-sensitive magnetic field sensor with a corresponding electronic analyzing device is arranged in a housing having a first housing part and a second housing part connected to the first housing part via at least one pivot joint, and cut-out sections through which the insertable conductor passes provided in the end walls. The cut-out sections are shaped such that once one housing part is pivoted open relative to the other, the conductor can be inserted into the respective end-face cut-out section parts of the first housing part. Bearing shells are provided in the two housing parts, and a flexible conductor track carrier is inserted into the bearing shells, wherein the conductor track carrier receives the magnetic sensors of the measuring device.

主权项

1: A measuring device for at least one contactless current measurement at an electric conductor flowed through by current, wherein at least one magnetic field sensor sensitive to magnetic field is arranged as current measuring sensor with a corresponding electronic evaluating device in a housing, which comprises a first housing part and a second housing part connected therewith by way of at least one pivot joint, and passages for the passage of the insertable conductor are provided in the end walls and are so shaped that after pivotation open of one housing part relative to the other the conductor can be inserted into the respective end-face passage parts of the first housing part, wherein the first and second housing parts each have at the joint sides in the interior at least one respective substantially semi-cylindrical bearing shell, which shells substantially concentrically enclose the conductor when the housing is closed, that the bearing shells have a diameter which is of such a size relative to the conductor that at least one flexible shape-matched conductor track carrier with at least one magnetic field sensor is insertable therein, the carrier having two curved sections which are connected together at the side facing the pivot bearing by way of a loop-shaped connecting section so mounted in the housing as to ensure at least the relative pivot movement of the housing parts during opening and closing of the housing, and that the section, which is placed in the first housing part, of the flexible conductor track carrier provided with conductor tracks is mechanically and electrically connected with a rigid or flexible circuitboard.