JPH02292803A - Polarized electromagnet device - Google Patents

Abstract

PURPOSE:To obtain the title device which can be formed in the thickness same as that of an electromagnet and also which can be used for a thin type relay and the like by a method wherein a movable member is formed into a rectangle, both sides of a permanent magnet are provided in extended form on the side of a coil, and the movable member is positioned on the side part of the coil by having both sides of the movable member supported by the above-mentioned extended part. CONSTITUTION:In a polarized electromagnet device in which a coil 9 is wound around the iron core 2 provided on the center part of a permanent magnet 3, a movable member 10 is swingingly held to the supporting point of the permanent magnet 10 and the edge part of a movable member 10 comes in contact with or separated from the edge part of an iron core 2, the movable member 10 is formed almost in a rectangle, at the same time, both sides of the permanent magnet 3 are provided in extended form on the side of the coil 9, and the movable member 10 is positioned on the side part of the coil 9 by supporting both sides of the movable member 10 by the above-mentioned extended part. For example, a notched part 4 is provided in the center of the permanent magnet 3, and the center part of the iron core 2 is fitted to the notched part 4 in such a manner that the center part of the iron core 2 becomes almost even with the permanent magnet 3. Also, the movable member 10 is composed of frames 11 and 11 and frames 12 and 12, and supporting parts 13 and 13 consisting of protrudings are provided in the center part of the frames 11 and 11.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a relay. This invention relates to a polar electromagnet device used in filliE devices such as switches.

(Prior Art) Conventionally, as a polarized electromagnet device, for example, the one shown in FIG. 4 has been proposed.

This polarized electromagnet device consists of an electromagnet 2 l and a movable member 26 . The coil 2S is wound through the coil 2S. The movable part shrine 26 is swingably supported by the other magnetic pole of the permanent magnet 23 via the subur 24,
Both ends are opposite to both ends of the iron core 22, respectively.

Therefore, in the polar electromagnet device with the above configuration,
By switching the direction of the current applied to the coil 25, the movable member 26 swings.

(Problem to be Solved by the Invention) However, in the polarized electromagnet device, the movable member 26
Since it is arranged above or below the electromagnet 2I, it is not possible to make it as thick as the electromagnet 2l, and the polarized electromagnet device cannot be used as a relay 2 switch or the like. ! ! When used in a container, there is a problem in that the thickness of the movable member 26 increases.

In view of the above-mentioned problems, it is an object of the present invention to provide a polarized electromagnet device that can be made to have the same thickness as the electromagnet and can be used in thin A-type electric appliances.

(Means for Solving the Problems) In order to achieve the above object, the present invention includes a coil wound around an iron core having a permanent magnet in the center, and a movable member swingably supported around the permanent magnet as a fulcrum. In the polarized electromagnet device in which the ends of the movable member come into contact with and separate from the ends of the iron core, the movable member has a substantially square shape, and both sides of the permanent magnet extend to the sides of the coil. By supporting both sides of the movable member with the extended portion, the movable member is positioned on the side of the coil.

(Embodiment) Next, an embodiment of the polar electromagnet device according to the present invention will be described with reference to FIGS. 1 to 3.

This polarized electromagnet device is an electromagnet! and a movable member 10 made of metal, and the electromagnet 1 is composed of a flat plate-shaped iron core 2, a permanent magnet 3, and a subur 5.

The permanent magnet 3 has a notch 4 in the center, and the central portion of the iron core 2 is fitted into the notch 4 so as to be substantially flush with the permanent magnet 3. Further, the notch 4 and both ends have different polarities, and in this embodiment, the notch 4 is the S pole, and both ends are the N pole.

The spool 5 is integrally provided with the iron core 2 and the permanent magnet 3, and has a flange 8 having flanges 6.7 at both ends and the permanent magnet 3 built in in the center, and each flange 6, 8, and A coil 9 is wound between 7 and 8.

Further, both ends of the permanent stone 3 pass through the flange 8 and protrude to the side of the coil 9 wound around the spool 5.

On the other hand, the movable member IO has a mouth shape, and the frame portion 1
1.1 1 and a frame 1 2.1 2, and a fulcrum part 1 3.1 3 consisting of a protrusion is provided in the center of the frame 1 1.1 1, respectively.

The movable member 10 is arranged so as to surround the coil 9, and the frame portions 12 and 12 are opposed to both ends (magnetic pole portions) of the iron C.2 at a predetermined distance.

Further, the moeki fulcrum portion 1 3.1 3 is located in a portion extending to the side of the coil 9 of the permanent magnet 3, and the movable member 10
is able to swing around the fulcrum portion 13.13.

In the polarized electromagnet device having the above configuration, a current is applied to the coil 9, and the right side of the iron core 2 shown in FIG.
When the left side is magnetized to the N pole, the movable member IO is magnetized to the N pole, so the movable member IO swings about the fulcrum portion 13 in eight directions indicated by the arrows.

On the other hand, if you switch the direction of the current applied to the coil 9 and magnetize the left side of the iron core 2 to the north pole and the right side to the south pole, the movable member!
0 swings in the direction of arrow B.

Therefore, if the polarized electromagnet device is used in a relay, the movable member IO operates the movable contact piece based on its swing, thereby opening and closing the contacts.

In addition, in this embodiment, since the permanent magnet 3 is provided with a recess 4 of a predetermined depth and the iron core 2 is fitted therein, the movable member 10 can be made into a flat plate shape. 0 has the effect of being easily machined in one step such as punching, but it is also possible to eliminate the recess 4 of the permanent magnet 3 by processing the iron core 2 or 1 and the movable member 10.

(Effects of the Invention) As is clear from the above description, in the rotary pole electromagnet device according to the present invention, the permanent magnet is extended to the outside of the coil, the movable member is provided in this part, and the movable member is connected to the coil. Since the electromagnet is located on the side of the electromagnet so as to surround it, the thickness of the electromagnet device is the same as that of the electromagnet, and it can be made thinner than conventional devices.

Therefore, it is a useful electromagnetic device when a thin relay is desired, such as in recent relays.

[Brief explanation of drawings]

FIG. 1 is a plan view of a polarized electromagnet device according to the present invention, FIG. 2 is a side view of the polarized electromagnet device shown in FIG.
FIG. 4 is a perspective view of a permanent magnet used in the polarized electromagnet device shown in the figure, and FIG. 4 is a sectional view of the conventional polarized electromagnet device. 2... Iron core, 3... Permanent magnet, 10... Movable member, 9 coils, 13... Fulcrum part. Figure 1 Figure 2 Figure 3 Figure 4

Claims (1)

[Claims] (1) A coil is wound around an iron core provided with a permanent magnet in the center, and a movable member is swingably supported using the permanent magnet as a fulcrum, so that the end of the movable member moves into and out of contact with the end of the iron core. In the polarized electromagnet device, the movable member has a substantially square shape, and both sides of the permanent magnet are extended to the sides of the coil, and the extended portions support both sides of the movable member. A polar electromagnet device characterized in that the movable member is located on a side of the coil.