JPH03109174U

JPH03109174U -

Info

Publication number: JPH03109174U
Application number: JP1779490U
Authority: JP
Priority date: 1990-02-22
Filing date: 1990-02-22
Publication date: 1991-11-08

Description

[Brief explanation of drawings]

第１図は、本考案における小形の電流センサを
示し、第１図ａは本考案による電流センサの構成
を示す完成した斜視図、第１図ｂは本考案による
電流センサの構成を示す分解斜視図。第２図は、
従来の電流センサを示し、第２図ａは従来の電流
センサの全体の構成を示す斜視図、第２図ｂは従
来の電流センサを示す分解斜視図。１，２２……磁性体コア、２，２５……感磁素
子、３，２６……感磁素子実装基板、４，２７…
…巻線、５，５ａ，５ｂ……コイルボビン、６…
…ケース、７ａ，７ｂ……突起、８ａ，８ｂ，９
ａ，９ｂ……コイル先端からげピン、１０ａ，１
０ｂ……台、１１，２３……磁気ギヤツプ、２８
……凸部、２９……出力端。 FIG. 1 shows a small current sensor according to the present invention, FIG. 1a is a completed perspective view showing the configuration of the current sensor according to the present invention, and FIG. 1b is an exploded perspective view showing the configuration of the current sensor according to the present invention. figure. Figure 2 shows
FIG. 2A is a perspective view showing the overall structure of the conventional current sensor, and FIG. 2B is an exploded perspective view showing the conventional current sensor. 1, 22... Magnetic core, 2, 25... Magnetically sensitive element, 3, 26... Magnetically sensitive element mounting board, 4, 27...
...Winding, 5, 5a, 5b...Coil bobbin, 6...
...Case, 7a, 7b...Protrusion, 8a, 8b, 9
a, 9b...Tangled pin at the end of the coil, 10a, 1
0b...stand, 11, 23...magnetic gap, 28
... Convex portion, 29 ... Output end.

Claims

[Claims for Utility Model Registration] 1. A magnetic core provided with a magnetic gap in a part of an annular magnetic path, a magnetic sensing element disposed within the magnetic gap, and wound around the annular magnetic path through which a current to be detected flows. In a current sensor configured to detect the value of the current flowing through the winding by the output voltage sensed by the magnetic sensing element, the magnetic field generated in the magnetic gap is detected.
In the magnetic path direction of the annular magnetic core, a two-split coil bobbin with a gear-shaped convex portion at one end for winding a winding around the magnetic core is attached to the magnetic core, and the convex portion of the coil bobbin Rotate the winding machine to wind the wire, fix it to the case, attach the magnetic sensing element perpendicular to the board surface, and attach the magnetic sensing element mounting board with the output end of the magnetic sensing element mounted, and place the magnetic sensing element in the magnetic gap. A current sensor characterized in that the current sensor is configured by aligning and positioning an end face of the inserted case and an end face of the magnetic sensing element mounting board. 2 Providing a protrusion on the coil bobbin divided into two parts,
Request for registration of a utility model characterized in that the coil bobbin and the magnetic core are fixed to the case by providing a hole in the case at the same position as the protrusion and inserting the protrusion of the coil bobbin into the hole of the case. The current sensor according to item 1.