JPH0358846U

JPH0358846U -

Info

Publication number: JPH0358846U
Application number: JP11994789U
Authority: JP
Priority date: 1989-10-13
Filing date: 1989-10-13
Publication date: 1991-06-10

Description

[Brief explanation of the drawing]

第１図〜第４図はこの考案の一実施例による電
磁接触器を示し、第１図は投入状態の断面図、第
２図は開放状態の断面図、第３図は分解斜視図、
第４図はストロークに対する磁気吸引力特性、及
びばね荷重特性を示す図、第５図はこの考案の他
の実施例を示す電磁接触器の断面図、第６図〜第
１３図は従来の電磁接触器を示し、第６図は投入
状態の断面図、第７図は開放状態の断面図、第８
図は部分拡大図、第９図、第１０図、第１１図は
第８図に対し不良原因を示す部分拡大図、第１２
図は第８図の状態において、ストロークに対する
磁気吸引力特性、及びばね荷重特性を示す図、第
１３図は第９図、第１０図、第１１図の状態にお
いて、ストロークに対する磁気吸引力特性、及び
ばね荷重特性を示す図である。図において、１……コイル枠、２……コイル、
３……第１の磁極片、４……第２の磁極片、５…
…永久磁石、６……可動ブロツク、６ａ……可動
片、６ｂ……可動棒、７……第１の磁気スペーサ
、８……第２の磁気スペーサ、９……第３の磁気
スペーサ、１９……反抗力、２０ａ……磁気吸引
力、２１ａ……磁気吸引力の合力、２２……第４
の磁気スペーサである。なお、図中、同一符号は
同一、または相当部分を示す。 1 to 4 show an electromagnetic contactor according to an embodiment of this invention, in which FIG. 1 is a sectional view in a closed state, FIG. 2 is a sectional view in an open state, and FIG. 3 is an exploded perspective view.
Fig. 4 is a diagram showing magnetic attraction force characteristics and spring load characteristics with respect to stroke, Fig. 5 is a sectional view of an electromagnetic contactor showing another embodiment of this invention, and Figs. 6 is a sectional view of the contactor in the closed state, FIG. 7 is a sectional view of the contactor in the open state, and FIG. 8 is a sectional view of the contactor.
The figure is a partially enlarged view, Figures 9, 10, and 11 are partially enlarged views showing the cause of failure compared to Figure 8, and Figure 12 is a partially enlarged view.
The figure shows the magnetic attraction force characteristics and spring load characteristics with respect to the stroke in the state shown in FIG. 8, and the figure 13 shows the magnetic attraction force characteristics with respect to the stroke, and FIG. 6 is a diagram showing spring load characteristics. In the figure, 1... coil frame, 2... coil,
3...first magnetic pole piece, 4...second magnetic pole piece, 5...
...Permanent magnet, 6...Movable block, 6a...Movable piece, 6b...Movable rod, 7...First magnetic spacer, 8...Second magnetic spacer, 9...Third magnetic spacer, 19 ...Repulsive force, 20a...Magnetic attraction force, 21a...Resultant force of magnetic attraction force, 22...Fourth
This is a magnetic spacer. In addition, in the figures, the same reference numerals indicate the same or equivalent parts.

Claims

[Scope of utility model registration request]

A movable block consisting of a movable rod passing through the electromagnetic coil and a flat movable piece fixed to one end or both ends of the movable rod, and facing one side of the movable piece,
a first magnetic pole piece located outside the coil; a second magnetic pole piece facing the other surface of the movable piece and located further outside the first magnetic pole piece; and the first magnetic pole piece. and the second magnetic pole piece, the electromagnetic contactor having a polarized electromagnet that drives the movable block by the combined attractive force of the permanent magnet and the coil, wherein the movable block and the second magnetic pole piece are connected to each other. In addition to the magnetic spacer interposed between the two magnetic pole pieces, the movable block and the first
An electromagnetic contactor characterized in that a magnetic spacer is installed between magnetic pole pieces.