JPH0547870U - Current detector - Google Patents

Abstract

(57) [Abstract] [Purpose] The rotation of the current detection device is eliminated to facilitate the connection work of the signal line 4, and the signal line 4 is not entangled with the electric wire 2 to improve the usability. [Structure] Through hole 11 for inserting electric wire 2 in which current is detected
And a mounting surface 12 provided on a tangent to a circle centered on the through hole 11 and provided with an output terminal 13 for outputting a signal in response to a current flowing through the electric wire 2. The wiring boards 3 arranged in parallel with each other and electrically connected to the output terminals 13 and attached were arranged in parallel vertically and attached via the spacer 5.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a current detection device that detects a current flowing through an electric wire.

[0002]

[Prior Art]

 In general, this type of current detecting device has a through hole 11 through which an electric wire 2 for detecting an electric current is formed, as shown in FIGS. 4 and 5, and is provided on a tangent to a circle centered on the through hole 11. A wiring board in which the current detector 1 such as a Hall element or a current transformer having an output terminal 13 for outputting a signal in response to a current flowing through the electric wire 2 is mounted on the mounting surface 12 in parallel with the mounting surface 12 There is a device in which the output terminal 13 is electrically connected and attached to the plate 3, and the signal line 4 is connected to the output connector 31 provided on the wiring board 3 to detect the current flowing through the wire 2.

When detecting a current flowing in a three-phase AC electric wire, for example, this current detecting device needs to detect the electric current flowing in at least two electric wires 2, and at least two electric current detecting devices are provided in each electric current detecting apparatus. Will be attached to the electric wire 2.

[0004]

[Problems to be solved by the device]

 In the above-mentioned current detecting device, the electric wire 2 is inserted into the through hole 11 and the electric current detector 1 is mounted on the electric wire 2. Therefore, the electric current detecting device rotates around the electric wire 2. The position of the output connector 31 is not stable when the signal line 4 is connected, which makes connection difficult, and the connected signal line 4 is entangled with the electric wire 2 due to the rotation of the current detecting device.

The present invention has been made in view of the above circumstances, and an object thereof is to eliminate the rotation of the current detection device to facilitate the connection work of the signal line and to entangle the signal line with the electric wire. An object of the present invention is to provide a current detection device that does not have such a problem.

[0006]

In order to solve such a problem, in the current detection device of the present invention, the wiring boards to which the current detector is attached are arranged in parallel vertically and are attached via a spacer. It will be.

[0007]

[Action]

 In the current detecting device of the present invention, since the current detectors in which the two electric wires are inserted are respectively held by the wiring board and the spacer, it is possible to eliminate the rotation of the electric current detectors around the electric wires. Become.

[0008]

【Example】

 An embodiment of the current detecting device of the present invention will be described below with reference to FIGS.

A current detector 1 such as a Hall element or a current transformer has a through hole 11 through which a three-phase AC electric wire 2 for detecting a current is inserted, and is formed on a tangent to a circle centered on the through hole 11. An output terminal 13 that outputs a signal in response to a current flowing through the electric wire 2 is arranged on the mounting surface 12 provided.

Further, the wiring board 3 is arranged in parallel on the mounting surface 12 of the current detector 1, and the output terminal 13 is electrically connected to the wiring board 3 and the output signal to which the signal line 4 is connected. The output connector 31 and the electronic component 32 are attached.

Moreover, the wiring boards 3 to which the current detector 1 is attached are vertically arranged side by side and fixed with screws 6 via spacers 5.

Therefore, the current detector 1 is connected to two of the three-phase AC electric wires and measures the three-phase AC current. Of course, in the above-mentioned embodiment, the electric current flowing through the two electric wires is detected, but the electric current may be three or less, and the two electric wires may be supplied to a circuit independent of each other. It may be an electric wire that flows.

[0013]

[Effects of the Invention] As described above, in the current detection device of the present invention, the wiring boards to which the current detectors are attached are arranged side by side on the upper and lower sides, and are attached via the spacers. Since the current detectors that have been inserted through are held by the wiring board and spacers by each, the rotation of the current detectors around the electric wires is eliminated, which makes it easier to connect the signal lines and It is possible to provide a user-friendly current detection device that does not get entangled in the electric wire.

[Brief description of drawings]

FIG. 1 is a front view of a current detection device according to an embodiment of the present invention.

FIG. 2 is a top view of FIG.

FIG. 3 is a side view of FIG.

FIG. 4 is a front view of a current detection device showing a conventional technique.

FIG. 5 is a top view of FIG.

[Explanation of symbols]

 1 Current Detector 11 Through Hole 12 Mounting Surface 13 Output Terminal 2 Electric Wire 3 Wiring Board 31 Output Connector 32 Electronic Component 4 Signal Line 5 Spacer 6 Screw

Claims (1)

[Scope of utility model registration request] 1. An output for forming a through hole for inserting an electric wire through which an electric current is detected, and outputting a signal in response to a current flowing through the electric wire on a mounting surface provided on a tangent line of a circle centered on the through hole. In a current detection device in which a current detector having terminals is attached by electrically connecting the output terminals to a wiring board arranged in parallel on the mounting surface, the wiring having the current detector attached A current detection device, in which the substrates for use are vertically arranged side by side and attached via a spacer.