JPH0119305Y2 - - Google Patents

Description

[Detailed explanation of the idea] 〔Technical field〕 This invention relates to a polarized relay.

[Background technology]

Conventionally, a polarized relay has an electromagnetic block and an armature block assembled vertically, and the movement of the armature block is transmitted to a contact mechanism to open and close the contacts. For this reason, the overall shape of this polarized relay is high and large, making it impossible to provide a small and thin polarized relay for use in electronic circuits and the like.

[Purpose of invention]

In view of the above circumstances, the object of this invention is to provide a small and thin polarized relay.

[Disclosure of invention]

In order to achieve the above object, this invention has a first magnetic pole section provided at one end of the iron core around which the coil is wound, and a yoke provided along the side of the coil connected to the other end. , an electromagnetic block in which one end of the yoke serves as a second magnetic pole portion facing the first magnetic pole portion; and an armature block in which two magnetic pieces sandwich a permanent magnet from both sides in the direction of magnetization. The first magnetic pole part is inserted into the gap created by the same side ends of the two magnetic material pieces, and the two magnetic pole parts are inserted into the gap created by the first magnetic pole part and the second magnetic pole part. An electromagnet block and an armature block are combined in such a way that one end of the magnetic material piece on the same side is inserted, and a second magnetic pole part and the opposite end of the first magnetic pole part are inserted. A contact mechanism is provided in a space, and the armature block is moved in forward and reverse directions by changes in the excitation state of the coil, and this movement is transmitted to the contact mechanism to open and close the contact. Its gist is polar relays. This will be explained in detail below based on the drawings showing one embodiment thereof.

As shown in FIGS. 1a and 1b, this polarized relay has an electromagnetic device 1 and a contact mechanism 2. As shown in FIGS. The electromagnet device 1 includes an electromagnet block 3 and an armature block 4. Electromagnetic block 3
has an iron core 6 passed through a coil frame 5. A coil 7 is wound around the coil frame 5. iron core 6
A first magnetic pole portion 8 is provided at one end, and a yoke 9 provided along both sides of the coil 7 is connected to the other end. Opposite sides 9a, 9 of yoke 9
b have different lengths, and one end of the long side 9a serves as a second magnetic pole portion 10 facing the first magnetic pole portion 8.
The length of the iron core 6 is shorter than the length of the long side 9a of the yoke 9. When the coil 7 is energized, the first magnetic pole part 8 and the second magnetic pole part 10 take on different polarities.

The armature block 4 has two magnetic pieces 11 and 12.
A permanent magnet 13 and a rod-shaped movable insulator 14 are provided. Two magnetic pieces 11 and 12 are permanent magnets 1
3 from both sides in the direction of magnetization, and a movable insulator 14 is passed between them. The movable insulator 14 is fixed with one end 14 a protruding from the magnetic piece 12 .

The electromagnet block 3 and armature block 4 are combined as follows. That is, the ends 11a, 12a of the two magnetic pieces 11, 12 on the same side are oriented in the direction in which the iron core 6 extends, and the first magnetic pole part 8 is inserted into the gap created by the ends 11a, 12a on the same side.
has been inserted. At the same time, one end 11a of the two magnetic pieces on the same side is inserted into the gap formed between the first magnetic pole part 8 and the second magnetic pole part 10.
The armature block 4 is inserted deep into the electromagnetic block 3 so as not to protrude from the end surface of the long side 9a of the yoke 9 of the electromagnetic block 3.

The electromagnet device 1 is constructed as described above, and the armature block 4 is moved in the forward and reverse directions by changing the excitation state of the coil 7.

The contact mechanism 2 includes a first magnetic pole part 8 of the electromagnet device 1.
It is provided in a space on the opposite side of the second magnetic pole part 10 with the boundary between the magnetic pole parts 10 and 10. The contact mechanism 2 includes a fixed terminal board 1
5 and a contact spring 16. Fixed terminal board 1
5 and the contact spring 16 are attached to the collar portion 4a of the coil frame 4.
is installed on. The contact spring 16 is arranged inside so as to be in contact with one end 14a of the movable insulator 14. A fixed contact 17 is provided at the tip of the fixed terminal plate 15 . A movable contact 18 is provided at the free end of the contact spring 16 so as to face the fixed contact 17 . By bending the contact spring 16 toward the fixed terminal plate 15, the movable contact 18 comes into contact with the fixed contact 17.

In this polarized relay, a space is formed on the opposite side of the second magnetic pole part 10 with the first magnetic pole part 8 as a border, and as described above, the contact mechanism 2 is provided in this space. . In this way, each component is arranged in a high density to make effective use of space, so this polarized relay is small and thin.

In this embodiment, yokes are provided on both sides of the coil, and the sides of the coil are magnetically shielded by the yokes, so when devices that are easily affected by magnetism, such as other relays, are brought close together, these devices There is no negative influence due to magnetism. Furthermore, since the armature block is deep inside the electromagnet block, leakage of magnetic flux can be reduced. Therefore, a higher proportion of the magnetic flux is available for operation of the armature block (i.e., more efficient);
It has become highly sensitive.

Next, the contact opening/closing operation of this polarized relay will be explained.

From the state shown in FIG.
When these are respectively magnetized to the S pole, the armature block 4 is moved in the direction of the first magnetic pole portion 8 due to homopolar repulsion and different polarity attraction. With this operation, one end 14a of the movable insulator 14 comes into contact with the contact spring 16,
The contact spring 16 is pressed and bent to close the space between the movable contact 18 and the fixed contact 17, resulting in the state shown in FIG. 1b. When the current in the coil 7 is cut off from this state, the armature block 4 is moved in the direction of the second magnetic pole section 10 by the action of the permanent magnet 13. With this operation, one end 14a of the movable insulator 14 separates from the contact spring 16, and the contact spring 16 returns due to its own elastic force, causing the movable contact 18 and the fixed contact 17
The gap between the two ends is opened, resulting in the state shown in Figure 1a. That is, in this polarized relay, the armature block is moved in the forward and reverse directions by changes in the excitation state of the coil, and this movement is transmitted to the contact mechanism to open and close the contacts.

The polarized relay according to this invention is not limited to the above embodiment. The yoke may be provided only on one side of the coil. The contact mechanism may be fixed to the base or body of the electromagnetic device to which the electromagnetic block is fixed. The movable insulator of the armature block may be attached to the contact spring. Furthermore, the armature block may be configured to rotate about a fulcrum, or may be configured to move in parallel.

[Effect of idea]

As we have seen above, the polarized relay according to this invention has a first terminal at one end of the iron core around which the coil is wound.
A magnetic pole part is provided, and a yoke provided along the side of the coil is connected to the other end, and one end of this yoke serves as a second magnetic pole part facing the first magnetic pole part. and an armature block in which two pieces of magnetic material sandwich a permanent magnet from both sides in the direction of magnetization, and the first magnetic pole is arranged in a gap formed by both ends of the two pieces of magnetic material. part is inserted and the first part is inserted.
In the gap formed between the magnetic pole part and the second magnetic pole part,
An electromagnet block and an armature block are combined so that one of the same side ends of the magnetic material pieces is inserted, and the second magnetic pole part and the opposite side with the first magnetic pole part as a boundary are inserted. A contact mechanism is provided in the space where the That is, by combining the electromagnet block and the armature block as described above, a space is formed on the side opposite to the second magnetic pole part with the first magnetic pole part as a boundary, and the contact mechanism is provided in this space. There is. In this way, since each component is arranged in a high density to make effective use of space, it is possible to construct a small and thin polarized relay.

[Brief explanation of the drawing]

FIGS. 1a and 1b are plan views showing an embodiment of the polarized relay according to this invention. DESCRIPTION OF SYMBOLS 1... Electromagnet device, 2... Contact mechanism, 3... Electromagnetic block, 4... Armature block, 5... Coil frame, 6... Iron core, 7... Coil, 8... First
9...Yoke, 10...Second magnetic pole part, 11, 12...Magnetic material piece, 13...Permanent magnet.

Claims (1)

[Claims for Utility Model Registration] (1) A first magnetic pole portion is provided at one end of an iron core around which a coil is wound, and a yoke provided along the side of the coil is connected to the other end. , an electromagnetic block in which one end of the yoke serves as a second magnetic pole portion facing the first magnetic pole portion; and an armature block in which two magnetic pieces sandwich a permanent magnet from both sides in the direction of magnetization. The first magnetic pole part is inserted into the gap created by the same side ends of the two magnetic material pieces, and the two magnetic pole parts are inserted into the gap created by the first magnetic pole part and the second magnetic pole part. An electromagnet block and an armature block are combined in such a way that one end of the magnetic material piece on the same side is inserted, and a second magnetic pole part and the opposite end of the first magnetic pole part are inserted. A contact mechanism is provided in a space, and the armature block is moved in forward and reverse directions by changes in the excitation state of the coil, and this movement is transmitted to the contact mechanism to open and close the contact. pole relay. (2) The polarized relay according to claim 1, wherein the yoke is provided along both sides of the coil. (3) The polarized relay according to claim 1 or 2, in which a contact mechanism is fixed to a coil frame used for winding a coil around an iron core.