JPS58190007A - Floating preventing device of monostable polar electromagnet - Google Patents

Abstract

PURPOSE:To prevent floating of hinge portion and efficiency reduction of the magnetic circuit, by a method wherein an armature is pressed between other end and yoke by pressure of a grasping member beyond the reaction force acting between both members. CONSTITUTION:An armature 2 is inserted through a coil 1 wound on a bobbine 12, and one end 3 of the armature is disposed between opposite pieces 7, 8 and other end 4 is to a hinge end 10. A grasping member 13 is made of elastic metal, and grasping portion thereof presses the hinge end 10 and other end 4 and a projection 13a is fitted to a recess 10b and a recess 4a of other end 4 thereby held in position. An insulation member 14 is installed near one end 3 of the armature 2, and a metal card 15 molded integral with the insulation member 14 drives a contact spring 17 on a base 16 thereby the contact spring 17 is changed between NC contact 18 and NO contact 19. Both hinge end 10 and other end 4 are pressed by pressure beyond the reaction force of both members thereby floating of hinge and reduction of efficiency of the magnetic circuit may be prevented and the releasing voltage be stabilized.

Description

DETAILED DESCRIPTION OF THE INVENTION The object of the present invention is to prevent a decrease in effectiveness and characteristic deterioration due to floating of the hinge portion of a magnet with poles and poles.

As shown in the figure, two yokes 5.6 with permanent magnets 9 attached to both ends of the armature 2 passing through the coil 1, that is, one end 3 and the other end 4, have opposed pieces 7.8 at both ends. and the hinge end 10 of one yoke 6, the other end 4 is in hinge contact with the hinge end In, and the one end 3 is reversibly inserted between the opposing yoke pieces 7 and 8.

In a conventional book with such a configuration, when the coil 1 is not excited, the hinge end 10 is the S pole due to the magnetism of the permanent magnet 9, and the opposing piece 7 of the yoke 5 is the N pole, and the armature 20) has three opposing ends. The other end of the piece 7 is absorbed by the hinge end IO, and there is no air gap between them. However, when the coil 1 is energized so as to repel the magnetized magnetic pole of the yoke 5.6 due to the magnetism of the permanent magnet 9, one end 3 of the armature 2 is repelled by the opposing piece 7, is attracted to the opposing piece 8 and is reversed, and the other end 4 of the armature 2 also repulses from the hinge end 10, creating a gap between them and opening up to the stopper 11.

Due to the creation of this gap, the excitation flow force of the coil 1 increases and the efficiency decreases, causing the opening 4. Pressure characteristics Book I: There are problems such as a decrease in pressure characteristics.

The present invention is a book that focuses on the above-mentioned conventional situation and has been made to improve it. Embodiments of the present invention will be described below with reference to FIGS. 2 to 5, in which the present invention is applied to a relay. Note that the same parts as in the conventional example in FIG. 1 are given the same reference numerals.

Insert the armature 2 into the coil 1 wound around the coil frame, and insert one end 3 between the opposing pieces 7 and 8, and the other end 4 at the hinge end 10.
It has been delivered to. The hinge end IO is bent into an L shape along the other end 4, a protrusion 10a is punched out on the other end 4 side, and a recess IOb for machining is formed on the other surface.

The pinching member 13 is made of elastic metal, and has protrusions 13a, 13. It is installed protrudingly.

Then, the hinge end IO and the other end 4 are brought into pressure contact with the clamping part of the clamping member 13a, and the protrusion t3B is fitted into the recess IOb and the recess 4a of the other end 4 to position and hold the armature 2. An insulating member 14 is attached near one end 3, and the base 16 is made of a full-body card made integrally with this insulating member 14.
The upper contact springs 17, 17 are driven, and the contact spring 17 is NC.
Contact] 8 and NO contact 19 are designed to open and close by switching. Since the card 15 is made by Gassen, there is no deformation of the contact spring 17 etc. due to heat, and the characteristics are stable. The coil terminal of the 20Vi coil frame 12 is connected to the coil terminal 21 on the base 16. 22 is a case that covers the base 16.

Since the hinge end 10 and the other end 4 are brought into pressure contact with each other with a pressing force that exceeds the repulsion between them, there is no floating (the efficiency of the magnetic circuit does not decrease and the open circuit voltage can be stabilized).

As explained above, according to the present invention monostable) (ν polarized shoulder magnet levitation prevention device), the permanent magnet 9 is installed at both ends of the armature 2 in which the coil 1 is inserted, and the permanent magnet 9 is installed in the center between the phases 1. The one end 3 of the armature 2 can be reversed between the two yokes, and the armature 2
In a levitation prevention device for a single monostable poled magnet in which the other end 4 is in contact with one side of the yoke 67, in addition to the armature 2, the repulsion that acts between the 4W 4 and the yoke 6. It has a structure characterized by being pressed together with a clamping member 13 that exceeds the force, and has remarkable effects such as preventing floating at the hinge part, no reduction in efficiency of the magnetic circuit, and no significant drop in open circuit voltage. is obtained.

Moreover, its structure is HI-only and assembly is easy.

[Brief explanation of the drawing]

Figure @1 is a front view showing a conventional example. ＠ Figures 2 to 5 show examples of the present invention. Figure 2 is a front view, Figure 3 is an exploded perspective view, Figure 4 is an exploded perspective view applied to a relay, and Figure 5 is a perspective view of a card. □This is a perspective view. 1...Coil, 2...Amateur, 3...One end,
4...Other end, 5.6...Yoke, 7.8...Opposing piece, 9...Permanent magnet, IO...Hinge end, 13...
・Pinching member, 15... Card 0% Applicant Matsushita Electric Works Co., Ltd. Representative Patent Attorney Toshimaru Takemoto (and 2 others) (5)

Claims (2)

[Claims] (1) Both ends of the armature inserted through the coil are inserted between the ends of two yokes with a permanent magnet placed in the center between them, and one end of the armature can be reversed between the two yokes. In addition, the other end of the armature is brought into contact with one side of the yoke to prevent floating of a monostable polarized electromagnet. A device for preventing the levitation of insect-stabilized rock, which is patented because it is pressed together with a clamping member. (2) Attach an insulating member to one end of the armature and attach it to the tip of the flooded edge material.・A monostable poled electromagnetic levitation prevention device that opens and closes a relay contact using a metal card solidified by insert molding.