JPH03113822U

JPH03113822U -

Info

Publication number: JPH03113822U
Application number: JP2426990U
Authority: JP
Priority date: 1990-03-09
Filing date: 1990-03-09
Publication date: 1991-11-21

Description

[Brief explanation of drawings]

第１図は本考案に係る負荷電流検出装置の要部
である電流検出センサ部の一例を示す横断面図、
第２図は第１図の分解斜視図、第３図乃至第６図
は本考案で用いるスペーサの他の４種の例を示す
斜視図、第７図乃至第９図は本考案で用いる導体
の他の３種の例を示す斜視図、第１０図は負荷電
流検出装置の基本構成を示す回路図、第１１図及
び第１２図は電流検出センサ部の平面図及び側面
図、第１３図は従来の負荷電流検出装置の斜視図
、第１４図は第１３図のケースの一部を破断して
示した斜視図、第１５図は第１４図に示した負荷
電流検出装置へ導体を組付けた状態の斜視図、第
１６図及び第１７図は従来の電気接続箱の平面図
及び縦断面図である。１……負荷電流検出装置、２……磁性体コア、
２ａ……磁気ギヤツプ部、３……感磁素子、４…
…導体（切断導体）、４ａ……突起、５……電流
検出センサ部、６……電源回路部、７……増幅回
路部、８……電子回路部、９……プリント基板、
１０……入出力用コネクタ、１１……専用のケー
ス、１２……貫通孔、１３……導体、１５……箱
体、１５Ａ……アツパーケース、１５Ｂ……ロア
ーケース、１６……電気接続箱、１７，１８Ａ〜
１８Ｃ……メインヒユーズ、１９……スペーサ、
１９ａ……導体貫通孔、１９ｂ，１９ｃ……突起
、２０……空隙。 FIG. 1 is a cross-sectional view showing an example of a current detection sensor section which is a main part of a load current detection device according to the present invention;
Figure 2 is an exploded perspective view of Figure 1, Figures 3 to 6 are perspective views showing four other examples of spacers used in the present invention, and Figures 7 to 9 are conductors used in the present invention. 10 is a circuit diagram showing the basic configuration of the load current detection device, FIGS. 11 and 12 are a plan view and side view of the current detection sensor section, and FIG. 13 is a perspective view showing three other examples. 14 is a perspective view of a conventional load current detection device, FIG. 14 is a partially cutaway perspective view of the case shown in FIG. 13, and FIG. A perspective view of the attached state, and FIGS. 16 and 17 are a plan view and a vertical cross-sectional view of a conventional electrical connection box. 1...Load current detection device, 2...Magnetic core,
2a...Magnetic gap part, 3...Magnetic sensing element, 4...
...Conductor (cut conductor), 4a...Protrusion, 5...Current detection sensor section, 6...Power supply circuit section, 7...Amplification circuit section, 8...Electronic circuit section, 9...Printed circuit board,
10... Input/output connector, 11... Dedicated case, 12... Through hole, 13... Conductor, 15... Box, 15A... Upper case, 15B... Lower case, 16... Electrical connection Box, 17, 18A~
18C...Main fuse, 19...Spacer,
19a...Conductor through hole, 19b, 19c...Protrusion, 20...Gap.

Claims

[Scope of utility model registration request]

A current detection sensor unit that incorporates a magnetic sensing element into a magnetic gap portion of a magnetic core and detects a load current flowing through a conductor passing through a through hole of the magnetic core, and an amplifier circuit that amplifies the output of the magnetic sensing element. In a load current detection device having an electronic circuit section including a section,
An annular spacer is positioned on the inner periphery of the through hole of the magnetic core, the conductor is passed through the through hole of the spacer, and the conductor is inserted between the magnetic core and the spacer or between the spacer and the conductor. A load current detection device characterized in that a protrusion that contacts between the two is interposed.