JPS5841624Y2 - Relay structure - Google Patents

Description

[Detailed description of the invention] The present invention relates to the structure of a relay, and the coil 1
A coil block 24 is formed by inserting the armature 11 into the coil bobbin 2 wound with the armature 11 so that the end 27 of the armature 11 protrudes from the coil bobbin 2. A card 14 made of non-magnetic material such as synthetic resin is inserted, and two parallel yokes 8, 8 are bridged by a permanent magnet 9, and magnetic poles with different polarities are formed at the ends of the yokes 8, facing each other. A coil block 24 is arranged horizontally between the yokes 8, 8 to form a surface 10, and the end 27 of the armature 11 is opposed to the magnetic pole surface 10 of the yoke 8, so that the armature 11 and the card Card 14 is linked with 14.
In the structure of a relay in which the contacts are driven by the armature 1
Card 1 made of non-magnetic material such as synthetic resin in the direction of end 27 of 1
4, a regular projection 25 is integrally projected from both magnetic pole faces 10.10 with the card 14, and the width of the regular projection 25 is formed wider than the width of the armature 11. This relates to a relay structure in which a regular gap is sometimes formed between the end 27 of the armature 11 and the corresponding magnetic pole face 10.

In general, in a polarized electromagnet constructed by arranging an armature excited by a coil between a pair of yokes excited by a permanent magnet, the final end of the stroke of the armature It has a characteristic that the rise of the suction force is remarkable.

Therefore, when such a polarized electromagnet is applied as a relay, if the armature stroke changes, the response and opening characteristics will vary significantly in relation to the load curve.

Therefore, conventionally, in order to weaken the suction force,
Although the armature 11 and the regular plate made of a non-magnetic material on the magnetic pole surface were welded, there were problems in that the workability was extremely difficult and the number of parts increased.

The present invention has been proposed in view of the above-mentioned points, and has been provided for the purpose of facilitating the formation of a residual gap for narrowing the range of change in the armature stroke.

The present invention will be explained in detail below with reference to embodiment figures.

Figures 1 to 4 and 5 to 8 are 2T, respectively.
3 shows a polarized electromagnetic relay according to an embodiment of the present invention formed as a type and a 4T type reed relay.

That is, in these embodiments, A is an electromagnetic block, which includes coils 1 and 1a wound around a coil bobbin 2, yokes 8 and 8, and an armature 11. It is composed of.

The central portions of the two yokes 8, 8 are bridged by a permanent magnet 9, and magnetic pole faces 10, which face each other and have different polarities, are formed at both ends of the yokes 8, 8, respectively.

The coil bobbin 2 is formed into a cylindrical shape, and the coils 1 and 1a are wound thereon. A magnetic armature 11 is inserted into the cylindrical hole of the coil bobbin 2 to form a coil block 24. Both ends of the coil bobbin 2 Both ends of the armature 11 are interposed between the magnetic pole faces 10 of the yokes 8, 8.

Thus, the armature 11 is pivoted at one end (in the case of 2T type) or at the middle part within the coil bobbin 2 (in the case of 4T type), and is therefore horizontally rotatable, with the free end being the magnetic pole face 10.
It is arranged so that the adsorption is switched between 10 and 10 times.

Here, the coil bobbin 2 has flanges 5° 5a at both ends and the center (in the case of the 4T type), as in the case of the 2T type shown in Figs. 1 to 4 or the case of the 4T type shown in Figs. 5 to 8. However, at this time, the flange 5 at one end in the case of the 2T type or the center flange 5 in the case of the 4T type is made thick,
The lead terminal 6 is punched and formed into a substantially U-shape as shown in the figure.
. . . are integrally embedded and molded, and each end of these lead terminals 6 . one end 6a of
The coils 1 and 1a are wound around this end 6a and connected by soldering, and the other end 6b is made wider than the end 6a. and protrudes long from the flange 5, and this end 6b
The coil terminal 3 is bent slightly forward or backward as necessary, and then press-fitted into the notch 17 at the upper end of the coil terminal 3 as described later.

14 is a card, which is made of a non-magnetic material such as synthetic resin and has a cross shape with a width as shown in FIG. A hole 26 is bored and the magnetic pole faces 10.10 of both yokes 8, 8 are drilled.
Thick plate-shaped regular projections 25 and 25 are formed integrally with the card 14 and project from the upper and lower edges of the insertion hole 26 on one side of the card 14, respectively, so as to be disposed between the card 14 and the card 14.

The width of the regular protrusion 25 is wider than the width of the armature 11, and when placed between the magnetic pole faces 10 and 10 of both yokes 8 and 8, the armature 11 can rotate horizontally at both ends of the regular protrusion 25. It has a gap.

Then, as shown in FIG. 2, the card 14 is inserted into the end 27 of the armature 11, and
Place in between.

Since the width of the regular protrusion 250 is wider than the width of the armature 11, when the armature 1 rotates, the side end of the regular protrusion 25 hits the magnetic pole surface 10 first, so the armature 11
A residual gap is formed between the end 27 of the magnetic pole face 10 and the magnetic pole face 10.

The electromagnet block A formed as described above is disposed on the base block 4, and a contact spring 13 is disposed on the side of the electromagnet block A whose base end is fixed to the 00M terminal 12 and substantially parallel thereto. . . . is driven by a card 14.14 housed in the end 27 of the armature 11, and a contact portion B consisting of both NO and NC terminals 15.16 and a contact spring 13 performs switching and connection of the contacts. It's Nishide.

The base block 4 has a coil terminal 3.00M terminal 12, a No terminal 15, and an NC terminal, as shown in FIG. 2 and FIG. 6, respectively.
It is formed of a synthetic resin molded product with a terminal 16 implanted through it, and the base end of a contact spring 13 is welded to the upper end of the 00M terminal 12 in advance, and a contact part B is formed together with the No. and NC terminals 15 and 16. There is.

-Contact parts B now placed on both sides of the base block 4...
. . . The central position between the two is the location where the electromagnet block A is disposed, and protrusions are integrally provided from the bottom of the base block 4, and recesses are formed in the opposing surfaces of these protrusions. Furthermore, a positioning curved piece 23 having a width matching the spacing between the magnetic pole faces 10 and 10 is provided at the center of one end (in the case of 2T type) or both ends (in the case of 4T type) of the base block 4. It is formed to protrude upward.

Note that 22 is a case.

Thus, when arranging the electromagnet block A on the base block 4, the locking tongues protruding downward from both end flanges 5, 5a or 5a, 5a of the coil bobbin 2 are inserted into the recesses on the surface facing the protrusion. By fitting the coil bobbin 2 of the electromagnet block A into the base block 4 from above,
Further, at this time, the positioning curved piece 23 is fitted between the ends of the yokes 8, 8,
The distance between the magnetic pole faces 10 and 10 is regulated by the width of the positioning curved piece 23.

As described above, the present invention includes a regular protrusion that projects integrally with the card between both magnetic pole surfaces in the direction of the end from one side of a card made of non-magnetic material such as synthetic resin that is inserted into the end of the armature. At the same time, the width of the regular protrusion is made wider than the width of the armature, so that a regular gap is formed between the end of the armature and the corresponding magnetic pole surface when the coil block is rotated, so that the width of the regular projection is made wider than the width of the armature, so that a regular gap is formed between the end of the armature and the corresponding magnetic pole surface when the coil block is rotated. It is no longer necessary to perform difficult work such as welding a non-magnetic regular plate to the magnetic pole face, the number of parts does not increase, and the workability is improved compared to the conventional method.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view of a 2T type electromagnetic block according to an embodiment of the present invention, Fig. 2 is an exploded perspective view of the same relay as above, and Fig. 3
The figure is a perspective view of the same relay as above, FIG. 4 is a circuit diagram of the same relay as above, FIG. 5 is an exploded perspective view of a 4T type electromagnetic block according to an embodiment of the present invention, and FIG. 7 is a perspective view of the same relay as above, FIG. 8 is a circuit diagram of the above relay, and FIG. 9 is a characteristic diagram of a polarized electromagnet.
is a coil, 2 is a coil bobbin, 8 is a yoke, 9 is a permanent magnet, 10 is a magnetic pole surface, 11 is an armature, 14 is a card, 27
24 is a coil block, and 25 is a regular protrusion.

Claims (1)

[Scope of utility model registration request] A coil block is formed by inserting an armature into a coil bobbin around which a coil is wound so that the end of the armature protrudes from the coil bobbin, and a non-magnetic material such as synthetic resin for contact driving is attached to the protruding end of the armature. Insert a card made of
Parallel yokes are bridged with permanent magnets to form magnetic pole surfaces with different polarities facing each other at the ends of the yokes, and a coil block is arranged horizontally and freely rotatable between the two yokes, In a relay structure in which the end of the armature is opposed to the magnetic pole surface of the yoke, and the armature and card work together to drive the contact by the card, a non-magnetic material such as synthetic resin is placed in the direction of the end of the armature. A regular projection is integrally projected from one side of the card between both magnetic pole surfaces, and the width of the regular projection is formed wider than the width of the armature, so that when the coil block rotates, the end of the armature A relay structure that forms a regular gap between the corresponding magnetic pole surface.