JPS6231464B2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a polarized reed relay.

Conventionally, when two reed relays were arranged side by side, the sensitivity could not be adjusted, so there were disadvantages such as variations in operation and inability to ensure sufficient contact pressure. The present invention seeks to provide a reed relay that eliminates these drawbacks.

The reed relay of the present invention will be explained with reference to the drawings.

In FIGS. 1 and 2, 1 is a first bobbin half placed on a substrate 2, which extends in the longitudinal direction at the center of the upper surface and expands in the direction perpendicular to the longitudinal direction and in the depth direction at the center. A groove 3 is bored therein. 4 and 5 are simultaneously molded at the ends of the grooves 3 at the time of molding the first bobbin half 1 (a separate member is placed in advance inside the mold of the desired shape, and fluidity of resin material etc. is applied thereto). The separate member is integrated with the molded product by injecting a molding material, hardening, and then taking it out. These terminals are extended to form common terminals 6, 6, 7, and 7. 8,9
are first and second fixed contact plates made of a magnetic material, which are disposed in the enlarged portions of the grooves 3 by simultaneous molding when the first bobbin half 1 is molded, and have L-shaped cross sections and are spaced apart from each other. The terminals are arranged in a direction perpendicular to the longitudinal direction of the first bobbin half 1, and a portion thereof extends to the lower surface of the front board 2 to form first and second fixed contact terminals 10 and 11. Reference numerals 12 and 13 denote first and second coil terminals, which are molded at the same time as the first bobbin half 1, respectively, and extend toward the lower surface of the substrate 2. A second bobbin half 14 is combined with the first bobbin half 1 to form a bobbin, and a groove 15 having the same shape as the groove 3 of the first bobbin half 1 is bored therein. 16 and 17 are respectively attached to the second bobbin half 14 in the enlarged portion of the groove 15.
It is arranged by simultaneous molding during molding, and the cross section is L.
a third made of magnetic material spaced apart from each other in a letter-like shape;
the second bobbin half 14 with a fourth fixed contact plate;
They are arranged in a direction perpendicular to the longitudinal direction, and a portion extends to the lower surface of the substrate 2 to form third and fourth fixed contact terminals 18 and 19. Reference numerals 20 and 21 are third and fourth coil terminals that are molded simultaneously when molding the second bobbin half 14, respectively, and are connected to the substrate 2.
It is extended to the bottom surface of. Reference numeral 22 denotes a first lead piece whose base end is fixed to the lead fixing piece 4 and extends into the hole formed by the grooves 3 and 15, and whose two-pronged free ends are connected to the first and third fixed contacts. It extends between the opposing end surfaces of plates 8 and 16. 23 is a second lead piece whose base end is fixed to the lead fixing piece 5 and extends into the hole formed by the grooves 3 and 15;
The two-pronged free ends are the second and fourth fixed contact plates 9, 1.
It extends between the opposing end faces of 7. 24 is a permanent magnet disposed in the enlarged hole formed by the enlarged part of the groove 3 and the enlarged part of the groove 15, and one pole is connected to the first,
It is in contact with the second fixed contact plates 8 and 9, and the other pole is in contact with the third and fourth fixed contact plates 16 and 17. 25 is a first coil wound around the arrangement portion of the first lead piece 22 and around the outer periphery of the combined first and second bobbin halves 1 and 14; Both ends are connected to coil terminals 12 and 20 of. 26 is a second coil wound around the arrangement portion of the second lead piece 23 and around the outer periphery of the combined first and second bobbin halves 1 and 14; Both ends are connected to coil terminals 13 and 21 of. A case 27 is attached to the substrate 2 and covers the first and second bobbin halves 1 and 14 as well as the first and second coils 25 and 26.

Thus, the first bobbin half 1 is attached to the first and second lead fixing pieces 4, 5, the first and second fixed contact plates 8,
9 and the first and second coil terminals 12 and 13 at the same time. First and second lead pieces 22, 2
3 to the first and second lead fixing pieces 4 and 5, respectively.
The two pronged free ends are arranged so as to be able to abut on the first and second fixed contact plates 8 and 9, respectively. A permanent magnet 2 is placed in contact with one pole on the first and second fixed contact plates 8 and 9.
4, the second bobbin half 14 is combined with the first bobbin half 1. As a result, permanent magnet 2
The other pole of 4 is in contact with the third and fourth fixed contact plates 16 and 17, and the first and second lead pieces 22 and 23 are arranged in the holes formed by the grooves 3 and 15, and the two Free ends extend between opposing end surfaces of the first and third fixed contact plates 8 and 16, respectively. First and second coils 2
5 and 26 are wound around the combined bobbin halves 1 and 14, and both ends are connected to coil terminals 12 and 20 and 13 and 21, respectively. Next, the common terminals 6, 6, 7, 7 and the fixed contact terminal 1 are inserted into the predetermined holes of the board 2, respectively.
0, 11, 18, 19, coil terminals 12, 13,
20 and 21 are inserted, and the bobbin halves 1 and 14 around which the coils 25 and 26 are wound are placed on the substrate 2. In this state, a driving current is applied to the coils 25 and 26, and the lead fixing pieces 4 and 5 are twisted appropriately, and the lead piece 2
The spring loads 2 and 23 are adjusted, and thus the sensitivity is adjusted. Thereby, the sensitivity of the reed relay including the lead piece 22 and the sensitivity of the reed relay including the lead piece 23 can be matched. After adjusting the sensitivity, the case 27 is attached to the board. Board 2 and case 27
It would be more preferable if the joint surface with the substrate 2 is sealed, and the insertion portion of each terminal into the substrate 2 is sealed. 3 and 4 show another embodiment of the reed relay of the present invention, in which first and second bobbin halves 1A and 14A are combined on a plane that is perpendicular to the substrate 2A and extends in the longitudinal direction of the bobbin. It is almost obvious that this embodiment has substantially the same structure, operation, and effect as the embodiment shown in FIGS. 1 and 2.

FIG. 5 shows still another embodiment of the reed relay of the present invention, in which the first and second bobbin halves 1B and 14B are joined together on a plane perpendicular to the longitudinal direction of the substrate 2B and the bobbin. It is almost self-evident that this embodiment has the same structure, operation, and effect as the embodiment shown in FIGS. 1 and 2.

As is clear from the above, in the reed relay of the present invention, the bobbin is divided into two parts, and the lead piece is attached to the lead fixing piece near the opening of the hole formed in the longitudinal direction of the bobbin before they are combined during assembly. fixed,
In addition, since fixed contact plates disposed near both sides of the free ends of the lead pieces are in contact with each pole of the permanent magnet, (a) the fixed portions of the lead pieces can be appropriately displaced after assembly.

Furthermore, (b) characteristics can be adjusted, and (c) polarization can be achieved, ensuring contact reliability and eliminating contact bounce, that is, it can be used for switching with relatively high power (d) monostable. Operation or bistable operation can be achieved, and memory function can also be achieved.In other words, (e) Easier assembly, easier adjustment, and reduction in manufacturing costs due to polarization can be achieved, and in addition, versatility can be ensured. It has remarkable effects such as:

[Brief explanation of the drawing]

1 and 2 show an embodiment of the reed relay of the present invention, FIGS. 3 and 4 show another embodiment of the invention, and FIG. 5 shows another embodiment of the same. 1... Bobbin half body, 2... Board, 3... Groove,
4, 5... Lead fixing piece, 6, 7... Common terminal,
8, 9... Fixed contact plate, 10, 11... Fixed contact terminal, 12, 13... Coil terminal, 14... Bobbin half, 15... Groove, 16, 17... Fixed contact plate, 18, 19 ...Fixed contact terminal, 20, 21...
...Coil terminal, 22, 23...Lead piece, 24...
...Permanent magnet, 25, 26...Coil, 27...Case.

Claims (1)

[Claims] 1 first and second bobbin halves placed on a substrate and combined with each other to form a longitudinally extending hole, and the first bobbin half positioned at both openings of the hole.
first and second lead fixing pieces that are simultaneously formed on the bobbin half and have both ends extended to the lower surface of the board to serve as a common terminal; first and second fixed contact plates made of a magnetic material, which are simultaneously molded and disposed on the body and whose portions extend to the lower surface of the board to serve as fixed contact terminals, and which are fixed to the first and second lead fixing pieces. first and second lead pieces that extend inside the hole and have free ends that can come into contact with the first and second fixed contact plates; ,
A second fixed contact plate is simultaneously molded and disposed on the second bobbin half so as to face the first and second lead pieces via the free ends thereof, and a portion thereof is extended to the lower surface of the substrate, and the fixed contact A third terminal made of magnetic material,
A central enlarged portion of the hole is configured such that one pole is in contact with the fourth fixed contact plate and the first and second fixed contact plates, and the other pole is in contact with the third and fourth fixed contact plates. A permanent magnet is wound around the outer periphery of the first and second bobbin halves so as to be disposed around the first and second lead pieces, and both ends are connected to the first and second lead pieces. A reed relay that includes first and second coils connected to coil terminals that are simultaneously molded on a bobbin half.