JPS6225408A - Electromagnet device - Google Patents

Abstract

PURPOSE:To obtain a slender electromagnet device having both latching and single staple type functions by providing an opposite magnet at one end of a stationary block, inserting a permanent magnet for forming a movable block and magnet pieces hanging vertically along both sides of the permanent magnet into the opposite magnet and swinging the permanent magnet in a hole. CONSTITUTION:A stationary block 1 is composed of a U-shaped magnet having opposite poles 15, 16 at its ends, and a slender yoke 11 which extends along the magnet and under the magnet, and a coil 13 is wound on the yoke 11. A movable block 2 is composed of a permanent magnet 23 having N-pole and S-pole at both ends, and magnetic pieces 21, 22 hanging vertically from the both sides, and the width of the block 2 is formed smaller than an interval between the poles 15, 16. Thus, a current flows to the coil 13 to incline the magnet 23 in one direction in response to the current value and to slide a V-shaped projection 25 on the lower surface of a movable insulator 24 engaged with the lower ends of the pieces into any of V-shaped grooves 17-19 formed on a base 12.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to an electromagnet device used for opening and closing contacts of a polarized relay.

・[Background technology] A conventional electromagnet device includes a fixed block in which a coil is wound around the center piece of a flat E-shaped yoke, and a movable block in which two magnetic pieces sandwich a permanent magnet from both ends in the direction of magnetization. was composed of a combination of

However, both sides of the planar E-shaped yoke are limited to coils, and the width between the two sides cannot be made narrower, resulting in an increase in the width of the entire electromagnetic device.

Conventionally, latching type and single stipple type electromagnetic devices have been constructed using different parts even if they are of the same type. This has led to a wide variety of tVs in recent years.
With the development of A-stone equipment and the increase in the number of molds and parts, the number of molds and parts has increased, causing a large amount of management loss. [Purpose of the Invention] In view of the above circumstances, this invention has been developed. An object of the present invention is to provide a thin electromagnet device that can be configured as either a latching type or a single stipple type without requiring any modified parts.

[Disclosure of the invention]

In order to achieve the above object, the present invention has a yoke having a substantially U-shaped side surface, a coil wound around one of the opposite sides, the tip serving as a first magnetic pole part, and two opposite sides. It is divided into two parts, and includes a fixed block whose tip end is an opposing magnetic pole part, and a movable block in which two pieces of magnetic material sandwich a permanent magnet from both ends in the direction of magnetization, and the two opposing magnetic pole parts The fixed block and the movable block are combined such that the two magnetic pieces are inserted between them and the first magnetic pole part is inserted between the two magnetic pieces, and the movable block is centered on the fulcrum,
It rotates in the forward and reverse directions by approaching and separating from the two opposing magnetic poles alternately, and its rotation fulcrum can be separated into the fulcrum mechanism of the fixed block and the fulcrum mechanism of the movable block. A plurality of at least one of each fulcrum mechanism is provided, and by selecting and combining the fulcrum mechanisms of the fixed block and the movable block, the movable block is stable in both states after forward and reverse rotation in the non-excited state. The gist of the electromagnet device is an electromagnet device in which a fulcrum is formed at either a position where the rotation occurs or a position where the fulcrum becomes stable in one of the states after forward and reverse rotation.

An embodiment of this will be explained in detail below based on the accompanying drawings.

As shown in FIG. 1 and FIGS. 2(a) and 2(b), this electromagnetic device includes a fixed block 1 and a movable block 2.

The fixed block 1 includes a yoke 1) and a base 12 (only a portion of which is shown in the figure). The yoke 1) has a substantially U-shaped side surface, and a coil 13 is wound around one of the opposite sides. The tip of the opposite side around which the coil 13 is wound serves as a first magnetic pole portion 14 . The other opposite side is divided into two and has a substantially U-shape in plan. The tip portions of each of the two halves serve as opposing magnetic pole portions 15 and 16. When the coil 13 is energized, the first magnetic pole section 14 and the two opposing magnetic pole sections 15 and 16 have different polarities.

The yoke 1) is fixed to the base 12 (in the figure,
The condition is omitted. ), the base 12 has multiple ■ grooves (fulcrum mechanism of the fixed block) 17.18
．． 19 is formed.

One of the grooves 18 is located between two of the two opposing magnetic pole parts 15 and 16.
On the dividing line A, the other V grooves 17 and 19 are arranged at positions shifted from the line A to both sides.

The movable block 2 has two magnetic pieces 21 and 22, a permanent magnet 23, and a movable insulator 24. two magnetic pieces 21
．． The movable insulator 22 has one end sandwiching the permanent magnet 23 from both ends in its magnetization direction, and the other end is fitted into two recesses formed in one end of the movable insulator 24.
It is fixed at 4. A V'-shaped protrusion (fulcrum mechanism of the movable block) 25 is formed at the center of the other end of the movable insulator 24 .

The fixed block 1 and the movable block 2 are combined in the following manner. That is, two opposing magnetic pole parts 1
Two magnetic pieces 21.22 are inserted between the two magnetic pieces 21.22 and the first magnetic pole part 14 is inserted between the two magnetic pieces 21.22. Furthermore, the V-shaped groove 18 of the base 12 is combined with the ■-shaped protrusion 25 of the movable insulator 24 to form a fulcrum. The movable block 2 has two opposing magnetic pole parts 1 centered on this fulcrum.
5.16, so that it rotates in the forward and reverse directions, approaching and separating from it alternately. ■ Letter-shaped protrusion 25 and ■ Groove 18
The V-groove combined with the ■-shaped protrusion 25 can be changed to another ■-groove 17 or ■-groove 19.

In Figs. 2(a) and (b), ■-shaped protrusion 25 and ■ groove 1 are shown.
8 was combined, but ■ letter-shaped protrusion 25 and ■ 1)
9 are combined, it becomes an electromagnet device as shown in Fig. 3 (al, (b)), and when the ■-shaped protrusion 25 and the ■ groove 17 are combined, it becomes an electromagnet device symmetrical to Fig. 3 (81, (bl). become.

First, a case where the ■-shaped protrusion 25 and the ■ groove 18 are combined will be described.

Figures 2 (a) and (b) show the respective states after the movable block 2 rotates forward and backward.Comparing the two figures, in Figure 2 (a), the opposite magnetic pole part 15 and the magnetic body fragment 21
are in contact with. In addition, the first magnetic pole part 14 and the magnetic piece 2
2 are in contact. Similarly, in FIG. 2 (bl), the opposing magnetic pole part 16 and the magnetic piece 23 are in contact with each other. Also, the first magnetic pole part 14 and the magnetic piece 21 are in contact with each other.

Because of this, a balance is maintained in the magnetic resistance of the magnetic circuit formed in both states after forward and reverse rotation. Therefore, in the non-excited state, the movable block 2 becomes stable in both states after forward and reverse rotation. In other words, it is a latching type electromagnetic device. In order to rotate the movable block 2 in the forward and reverse directions, the direction of the current flowing through the coil 13 is changed.

Next, a case where the ■-shaped protrusion 25 and the ■ groove 19 are combined will be described.

Figures 3+a) and 3(b) show the respective states after the movable block 2 has rotated forward and backward. Comparing both figures, in FIG. 3(a), the opposing magnetic pole part 16 and the magnetic piece 22
are in contact with each other, and in Fig. 3 (bl, the opposing magnetic pole part 1s'h
It is in contact with the m-type body piece 21. However, Fig. 3(a)
, the first magnetic pole part 14 and the magnetic piece 21 are in contact with each other, whereas in FIG. 3 (bl), the first magnetic pole part 14 and the magnetic piece 22 are separated. Therefore, the magnetic resistance between the first magnetic pole part 14 and the magnetic piece 22 in FIG. 3('b) is large, and the magnetic resistance of the magnetic circuit formed in both states after forward and reverse rotation becomes unbalanced. Therefore, in the non-excited state, the movable block 2 becomes stable in one of the states after forward and reverse rotation.
It is a single stipple type electromagnetic device that is stable in the state seen in the figure. In order to rotate the movable block 2 to the state shown in FIG. 3(b), the first
Electrification is performed so that the magnetic pole portion 14 becomes the south pole and the opposing magnetic pole portions 15 and 16 become the north pole.

When the ■-shaped protrusion 25 and the V-groove 17 are combined, the movable block 2 becomes a single stipple type electromagnetic device in which the movable block 2 is stabilized in a state symmetrical to the state shown in FIG.

In this way, this electromagnet device can change the position of the fulcrum, and therefore, without changing parts, the movable part is stable in both forward and reverse rotation states in the non-excited state, so-called latching. It is also possible to construct a so-called single stipple type electromagnet device that is stable in either the forward or reverse rotation state. If the grooves are formed at three locations as in this embodiment, it is possible to select the direction in which the movable part is stabilized when a single stipple type electromagnet device is constructed. Therefore, when this is applied to a relay, it becomes possible to choose the position where the contact mechanism is provided.

In addition, the yoke that constitutes the fixed part has a U-shaped side surface, and a coil is wound around one of the opposite sides, the tip becomes the first magnetic pole part, and the other opposite side is divided into two parts. ,
The tips of each serve as opposing magnetic poles. Therefore, there is no coil between the opposing magnetic pole parts, and the width therebetween can be made narrower than the coil width, making it possible to realize a narrow, slender electromagnet device.

The electromagnet device according to the present invention is not limited to the above embodiment. The coil may be wound around the yoke via a coil frame. In the above embodiment, the fulcrum mechanism of the movable part was a V-shaped protrusion, and the fulcrum mechanism of the fixed part was a groove, but the opposite may be used. In addition, the fulcrum mechanism of the movable part is a hole,
The fulcrum mechanism of the fixed part may be a shaft, or vice versa. (2) There may be two or more grooves. (2) One groove and a plurality of V-shaped protrusions may be provided.

[Effects of the Invention] As seen above, in the electromagnet device according to the present invention, the yoke has a substantially U-shaped side surface, a coil is wound around one of the opposite sides, and the tip is the first magnetic pole. Becomes a department,
The fixed block has a fixed block whose other opposite side is divided into two parts and whose tips are opposed magnetic pole parts, and a movable block in which two magnetic pieces sandwich a permanent magnet from both ends in the direction of magnetization. The fixed block and the movable block are combined so that the two magnetic pieces are inserted between the two opposing magnetic pole pieces and the first magnetic pole piece is inserted between the two magnetic pieces. The movable block rotates in forward and reverse directions about the fulcrum and alternately approaches and moves away from the two opposing magnetic poles. The rotation fulcrum is separable into the fulcrum mechanism of the fixed block and the fulcrum mechanism of the movable block, and each fulcrum mechanism has a plurality of fulcrum mechanisms (one of which is provided in plural, and the fulcrum mechanism of the fixed block and the movable block). By selecting and combining these, the movable block can be set to a position where it becomes stable in both states after forward and reverse rotation in the non-excited state, and a position where it becomes stable in either state after forward and reverse rotation. A fulcrum is formed on either side.

Therefore, it is possible to realize a thin electromagnet device that can be configured as either a latching type or a single stipple type without requiring any modified parts.

[Brief explanation of the drawing]

Figure 1 is a perspective view of an embodiment of the electromagnet device according to the present invention, Figures 2 (a) and fb) are explanatory diagrams of the same operation, and Figures 3 (al and (bl) are diagrams with the fulcrum position changed. It is an explanatory diagram of the operation in the case of 1. Fixed block 2. Movable block 1).
... Yoke 12 ... Base 13 ... Coil 1
4... First magnetic pole part 15.16... Opposing magnetic pole part
17,18.19...V groove 21.22...Magnetic piece 23...Permanent magnet 24...Movable insulator 25
... V-shaped protrusion agent Patent attorney Takehiko Matsumoto Figure 1

Claims (2)

[Claims] (1) The side surface of the yoke is approximately U-shaped, and a coil is wound around one side of the yoke, and the tip becomes the first magnetic pole, and the other opposite side is divided into two, each with a tip. comprises a fixed block in which are opposed magnetic pole parts, and a movable block in which two pieces of magnetic material sandwich a permanent magnet from both ends in the direction of magnetization, and the two magnetic bodies are arranged between the two opposed magnetic pole parts. The fixed block and the movable block are combined in such a way that the first magnetic pole part is inserted between the two magnetic material pieces, and the movable block is centered on the fulcrum, and the first magnetic pole part is inserted between the two magnetic material pieces. Approaching the opposing magnetic poles alternately,
They are designed to rotate in the forward and reverse directions so as to be separated from each other, and the rotation fulcrum is separable into a fulcrum mechanism of the fixed block and a fulcrum mechanism of the movable block, and at least one of the fulcrum mechanisms of each fulcrum mechanism is By selecting and combining the fulcrum mechanisms of the fixed block and the movable block, which are provided with multiple units, the movable block can be moved to a position where it is stable in both states after forward and reverse rotation in the non-excited state and forward and reverse rotation. An electromagnetic device in which a fulcrum is formed at either of the positions that become stable in either of the latter states. (2) The fulcrum mechanism of the fixed block is a V-shaped groove formed in the base to which the yoke is fixed, and the fulcrum mechanism of the movable block is a V-shaped groove formed in the movable insulator to which the two magnetic pieces are fixed. The electromagnet device according to claim 1, which is a protrusion.