JPS5925333B2 - polarized relay - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a polarized relay, and more particularly to a flat type polarized relay.

Conventionally, this type of polarized relay has two L-shaped yokes 3' each protruding from both ends of a coil bobbin 4' around which a coil 4 is wound, as shown in FIG. A plate-shaped permanent magnet 2' is placed on the top surface of the L-shaped yoke 3, and in this case, the plate-shaped permanent magnet 2' is fitted into a hole drilled in the side wall of Since the L-shaped yoke 3 and the permanent magnet 2' are stacked on top of each other, there is a drawback that the height is increased accordingly.

In the figure, 1 is a bottom case, 12 is a fixed contact, 16 is an armature, 31 is a terminal block, 25 is an operating spring, 32 is an operating spring support, and 28 is a case.

In another conventional example, the yoke is formed into a U-shape that projects upward, and a plate-shaped permanent magnet is placed on the top of the yoke, and a plate-shaped permanent magnet is placed on the permanent magnet, and the magnet is rotatable about a supporting member as a fulcrum. Configured to carry amateurs,
In this case as well, the height of the polarized relay is influenced by the thickness of all the magnetic circuit components, making it impossible to obtain a flat type of polarized relay.

The present invention was proposed in view of the above drawbacks, and its purpose is to reduce the thickness in the height direction by creating a structure that can absorb the thickness of the yoke, permanent magnet, armature, etc. within the winding thickness of the coil. The purpose of this invention is to provide a polarized relay that makes it possible.

Hereinafter, the polarized relay of the present invention will be explained.

Figure 2 A shows an embodiment of the present invention, marked 1 in Figure 2.
2 is a plate-shaped bottom case, 2 is a rectangular permanent magnet, and N is attached to both ends.
The same polarity as the south pole or the south pole is magnetized, and the central part is magnetized with a different pole, the south pole or the north pole, with respect to the magnetic poles at both ends.

3 is an H-shaped flat yoke; 4 and 4 are coil bobbins; a space 6 is provided in the central coil winding part 5 to accommodate the main body of the yoke 3; 7,
7 are provided with clamping parts 9, 9 for supporting both arm parts 8, 8 of the H-shaped flat yoke 3 extending parallel to each other. wall 7,
A support portion 10.10 for supporting both ends of the permanent magnet 2 is provided at the lower inner end of the permanent magnet 7.

Further, a fixed contact plate 13.13 for fixing the fixed contact 12.12 is provided on the upper surface of the protrusion 11.11 provided at both longitudinal ends of the coil bobbins 4, 4, and the fixed contact terminal 14 is provided from the lower surface. .14 is installed protrudingly.

15. 15 is a terminal for connecting the winding start end and the winding end end of the coil wound around the outer periphery of the coil winding part 5; 16 is a mouth-shaped armature with a punched-out inside, and is located approximately at the center of both sides. is provided with a downwardly curved protrusion 17.17, this protrusion 17.17 is placed on the central magnetic pole of the permanent magnets 2, 2, and the armature 16 is placed on the permanent magnets 2, 2.
Rotatably arranged on 2.

Also, holes 18.18 are bored at both ends of the protrusion 17.17.

19 is an insulating sheet, and an expanded part 2 is attached to the upper part of the coil.
0, and holes 22.22 are bored in both sides of the flange 21 around the expanded portion at positions corresponding to the holes 18.18 of the armature 16.

Reference numeral 23 designates an operating spring block, which is provided with movable contact terminals 25.25 extending in opposite directions at both ends in the longitudinal direction and having a movable contact 24.24 fixed to the free end. Adjustment springs 26, 26 are provided between them, and pins 27, 27 for connecting the armature 16 are protruded from the lower surface.

In order to attach the operating spring block 23 to the armature 16, insert the pin 27.2 into the hole 22.22 of the insulating sheet 19.
7 through, and then insert pins 27 and 27 into amateur 1.
Insert into holes 18 and 18 of No. 6 and heat swage.

28 is a box-shaped case which is attached to the bottom case 1.

When assembling, first, the main body of the H-shaped flat yoke 3 is stored in the empty space 6.6 of the coil bobbins 4, 4, and the coil bobbins 4, 4 are joined together, and the main body of the H-shaped flat yoke 3, That is, the coil is wound around the coil winding part 5, and both ends of the permanent magnets 2, 2 are connected to the support parts 10, 10 of the coil bobbins 4, 4.
The tips of the arms 8, 8 facing each other are bridged to the lower ends of both arms 8, 8 of the H-shaped flat yoke 3 protruding from the clamping parts 9, 9 of the coil bobbin 4. The permanent magnets 2, 2 are arranged as shown in FIG.

That is, the permanent magnets 2.2 are arranged substantially parallel to both sides of the main body of the H-shaped flat yoke 3.

Next, the coil bobbins 4, 4 configured as described above are placed on the bottom case 1, the mouth-shaped armature 16 is placed over the coil, and the upper part of the coil is housed in the punched part of the armature 16, while the permanent magnet 2. Amateur 16 in the center
The protrusion 17.17 is rotatably arranged to constitute a thin electromagnetic block.

Next, the insulating sheet 19 is attached to the upper surface of the coil, and the pins 27.27 of the operating spring block 23 are inserted into the holes 18.27 of the armature 16 through the holes 22.22 of the insulating sheet 19.
18 and is assembled by covering the entire body with the case 28.

Therefore, by exciting the coil in a certain direction, H
A shaped flat yoke 3 is magnetized, and one end of the armature 16 is attracted to one end of the yoke 3 and swings with the protrusion 17 as a fulcrum, and the operating spring block 23 integrally connected to the armature 16 also moves in conjunction. Therefore, the movable contact 24.2
4 and the fixed contact 12.degree.12.

Figure 3A shows the assembled state of a polarized relay according to an embodiment of the present invention, where A shows a top view and the mouth shows a sectional view seen from the front.

FIG. 4A shows another embodiment of the electromagnetic block used in the present invention. In this embodiment, for example, a rectangular permanent magnet 2a is magnetized with an N pole on the upper surface and an S pole on the lower surface.
, 2a are disposed on the lower surface of both arms 8a, 8a extending parallel to each other of the H-shaped flat yoke 3a, in contact with both arms 8as 3a in the same direction, and furthermore, the permanent magnets 2a, 2a
A punched mouth-shaped yoke 30a is provided at the bottom of the yoke 30a, in which upwardly curved protrusions 29a, 29a are formed in the center of both sides, and a mouth-shaped armature 16a is provided at the top of the protrusions 29a, 29a. It is arranged so that it can rotate freely,
The permanent magnet 2a is effectively used for the H-shaped flat yoke 3aK.

In this case, the coil wound around the main body of the H-shaped flat yoke 3a is connected to the mouth-shaped yoke 30a and the armature 16.
It is stored in the punched part of a.

In this embodiment, the upwardly curved protrusions 29a, 29a act as fulcrums on the mouth-shaped yoke 30a.
We have explained the case where amateur 16a is formed.
In order to rotate the armature 16a, it is also possible to provide the armature 16a with a downwardly curved protrusion as in the previously described embodiment shown in FIG.

The other configurations and operations are almost the same as those of the previous embodiment,
Ross indicates the magnetic circuit of this embodiment, and the magnetic circuit is formed in the direction of the arrow.

FIG. 5A shows still another embodiment of the electromagnetic block used in the present invention. In this embodiment, the end portions 8b of the opposing inner side surfaces of both arm portions 8b, 8b of the H-shaped flat yoke 3b are shown. ', 8b', a rectangular permanent magnet 2b,
2b are disposed so as to bridge the permanent magnets 2b, 2b, and the lower surfaces of both sides have protrusions 17b, 1 at the center thereof.
Amateur 16b with a punched mouth shape provided with 7b
is rotatably arranged via the protrusions 17b, 17b.

In this embodiment, the permanent magnets 2b, 2b are magnetized with the same polarity at both ends and different polarities in the center.

Further, the permanent magnets 2b, 2b are arranged between the tips 8b', 8b' of the inner side surface of the H-shaped flat yoke 3b, and the permanent magnets 2b, 2b and the yoke.

3b are integrally formed on substantially the same plane, the protruding portions 17b and 17b of the armature 16b may have a rectangular shape.

Therefore, approximately the center portion 16b' of the upper surface of both sides of the armature 16b.

16b' toward the lower surface to easily remove the protrusion 17.
b, 17b can be formed, and according to this embodiment, the thickness of the magnetic circuit can be made thinner.

The loss is an explanation of the magnetic circuit of this embodiment, and the magnetic circuit is formed in the direction of the arrow.

As described above, according to the present invention, the yoke is formed into an H-shaped flat shape, and the permanent magnet disposed in contact with the yoke is rectangular, and the armature is rotatable while storing the coil in the punched part. Since (/1) the thickness of the magnetic circuit components does not affect the height of the polarized relay, a flat type polarized relay can be obtained.

(b) When the permanent magnets are arranged in the same direction as both ends of the yoke, the contact area between the permanent magnets and the yoke is wide (this allows the permanent magnets to be used effectively and high sensitivity can be achieved.

(c) When the yoke and the permanent magnet are combined together, a thinner polarized relay can be obtained.

It has practical effects such as

[Brief explanation of the drawing]

Figure 1 is an exploded perspective view of a conventional polarized relay, Figure 2A is an exploded perspective view of the present invention, Ross is an explanatory diagram of a magnetic circuit, Figure 3A is a top view, Ross is a front view, and Figure 4 5A is an exploded perspective view of another embodiment of the present invention, Ross is an explanatory diagram of the magnetic circuit, FIG. 5A is an exploded perspective view of the same, and Ross is an explanatory diagram of the magnetic circuit. 1...Bottom case, 2.2a, 2b...Permanent magnet, 3
゜3a, 3b... Yoke, 4... Coil bobbin, 5
... Coil winding part, 6 ... Vacant room, 7 ... Side wall, 8
．． 8a. 8b... Both arms of the yoke, 9... Clamping part of the yoke,
DESCRIPTION OF SYMBOLS 10... Support part, 11... Projection part, 12... Fixed contact, 13... Fixed contact plate, 14... Fixed contact terminal, 15... Coil terminal, 16... Armature, 17
．． 17b... Protrusion part, 18... Hole, 19... Insulating sheet, 20... Expanded part, 21... Flange, 22
... Hole, 23... Operating spring block, 24... Movable contact, 25... Movable contact terminal, 26... Adjustment spring, 27... Bin, 28... Case, 29a...・Protrusion, 30a... Yoke, 31... Terminal block,
32...Operation spring support stand.

Claims (1)

[Claims] 1. An H-shaped flat yoke around which a coil is wound and which has both arms extending parallel to each other at both ends, and a lower end of both arms of the yoke so as to bridge this lower end. A pair of permanent magnets that are brought into contact with each other and have the same polarity magnetized at both ends and a different polarity magnetized at the center, and a pair of permanent magnets that are in contact with each other and have the same polarity magnetized at both ends and a different polarity magnetized at the center, and a pair of permanent magnets formed downward in the center of both sides at the center of the permanent magnets. a rotatable mouth-shaped armature on which the protruding portion is placed and the coil is housed in a central punched-out portion; 1. A polarized relay comprising: an operating spring block provided with a fixed contact facing the movable contact; and a coil bobbin supporting the H-shaped flat yoke and the permanent magnet.