JPS5823693B2 - Balance Amachi Yuagata Yukiyokurirei - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a balanced armature type polarized relay, and an object of the present invention is to enable easy assembly with high precision in the positional relationship of each component.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings. Reference numeral 1 denotes a base made of synthetic resin having a recess 1b on the bottom, a shaft 1a integrally protruding from the upper surface of the center, and a through hole 1c in the center of both ends.
1d.

2, 2' are common terminals that are fixed through simultaneous molding on both sides of the center of the base 1, 3, 3' and 4, 4' are terminals that are fixed through both ends of the base 1 by simultaneous molding, Fixed contacts 5° 5' and 6, 6' are fixed to the outside of the upper ends of the terminals 3° 4, 3', and 4', respectively.

7, 7' have movable contacts 8, 9 and 8', 9' on both end sides.
The movable contact plate spring fixes the movable contact 8. by fixing its central part to the upper end of the common terminals 2, 2'.
8' and 9.9' face the fixed contacts 3.3' and 4.4' so as to be in contact with and away from them.

Reference numeral 10 denotes a U-shaped fixed iron plate around which a coil 11 is wound around the center plate 10a, and leg plates 10b on both sides thereof.

10C is fitted into the through holes ic and ld and protrudes from the upper surface of the base 1, and the coil 11 is accommodated in the recess 1b.

12 has a bearing hole 13 in the center and drive pieces 1 on both ends.
A pair of magnetic root rods 17, 17' are attached to a synthetic resin holding frame 16 that integrally forms 4, 14' and 15, 15', and a permanent magnet 18 is placed between the pair of magnetic root rods 17, 17'. By fitting the shaft 1a into the bearing hole 13 so as to rotate it, the magnetic root rod 17
, 17' have inner surfaces on both sides of the fixed iron plate 10.
0b and 10c, and the drive pieces 14.14' and 15.15' are connected to the movable contact I leaf spring 7.
．． It is opposed to the inner surface of both ends of 7'.

19 is a lid attached to the bottom of the base 1 to close the recess 1b of the base 1; 20 is a cover attached to the top of the base 1;
21 and 21' are terminals of the coil 11.

The present invention has the above-described configuration, and when a current is applied to the coil 11 and the side leg plate 10b of the fixed iron plate 10 is magnetized to the north pole and the side leg plate 10C is magnetized to the south pole in FIG. One end of the magnetic root rod 7' is brought into contact with and attracted to the side leg plate 10b, and one end of the magnetic root rod 7 is brought into contact with and attracted to the side leg plate 10C. The movable contact 9' side end side of the movable contact plate spring 7 is pressed and moved by the drive pieces 14, 15', and the contacts 5, 8, 6' and 9' are opened, and the movable contact 9 side end side of the movable contact plate spring 7 and the movable Contact plate spring 7
The side surface of the movable contact 8' side is not pressed by the drive piece 15.14', and the contacts 6, 9.5' and 8' are pressed into contact by the spring force of the movable contact plate spring 7°7' itself. and close it.

Next, when a current is applied to the coil 11 in the opposite direction to magnetize the side leg plate 10b of the fixed iron plate 10 to the S pole and the side leg plate 10C to the N pole as shown in FIG. One end of the rod 17 is brought into contact with and attracted to the side leg plate 10C, and one end of the magnetic rod 17' is brought into contact with and attracted to the side leg plate 10C, contacts 6, 9.5' and 8' are opened, and contacts 5, 8.6' and 9 are opened. ' is brought into contact and closed by the spring force of the movable contact leaf spring 7.7'.

As described above, the present invention has a shaft 1 protruding from the upper surface of the center part of the base 1.
Both side leg plates 10b, IQ of a U-shaped stationary iron plate 10, which has a bearing hole 13 of a movable part 12 in a bearing hole and a coil 11 wound around a central side 10a in through holes ic and ld of the base 1.
c, the pair of magnetic root rods 17,
17' and both side leg plates 10b.

The dimensional accuracy of the mutual position with 10G can be made accurate, and
When the coil is energized to drive the movable part, the operation is stable, and the common terminal and terminal are fixed through the base, so the dimensional accuracy of the mutual position of the movable contact plate spring and the movable part can be easily and precisely determined. The contact opening and closing can be made stable, and since the base is interposed between the coil and the contact, the arc when opening and closing the contact is not blown onto the coil, which reduces damage to the coil. There is.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, and FIG. 1 is a sectional view;
FIG. 2 is a sectional view taken along the line X--X of the same as above, and FIG. 3 is an exploded perspective view. 1 is the base, 1a is the shaft, lc and id are the through holes, 2°2' are the common terminals, 3.3' and 4.4' are the terminals, and 5.5'. 6.6' is a fixed contact, 7, 7' is a movable contact plate spring, 8°8', 9, 9' are movable contacts, 10 is a U-shaped fixed iron plate, 11 is a coil, 13 is a bearing hole, 14 .14', 15
15' is a driving piece, 16 is a holding frame, 17 and 17' are magnetic root rods, 18 is a permanent magnet, 19 is a lid body, and 20 is a cover.

Claims (1)

[Claims] 1. A base 1 made of synthetic resin with a shaft 1a integrally protruding from the upper surface of the center and through holes lc and ld formed in the center of both ends, with common terminals 2 and 2' fixed through the center on both sides. Terminals 3, 3' and 4.4' are passed through and fixed to both sides of both ends of the base 1, and fixed to the inner surfaces of both ends of a movable contact leaf spring 7.7' whose central part is fixed to the upper end of the common terminals 2 and 2'. movable contacts 8, 9 and 8'
, 9' are fixed to the outer surfaces of the upper ends of the terminals 3, 4 and 3/, 4/, and the fixed contacts 5, 6 and 5', 6' face each other so as to be close to and separate from each other, and a coil 11 is wound around the central portion 10a. Both side leg plates 10b and 10C of the U-shaped fixed iron plate 10 are attached to the base 1.
It is inserted into the through hole 1C11d and protrudes from the top surface of the base 1,
A bearing hole 13 is provided in the center, and drive pieces 14 are provided on both ends.
The above-mentioned bearing hole 1 of the movable part 12 is formed by installing a permanent magnet 18 between a pair of magnetic root rods 17 and 17' mounted on a synthetic resin holding frame 16 in which 14' and 15.15' are integrally formed.
3 is rotatably inserted into the shaft 1a, and the magnetic root rod 1
7. Both side leg plates 10b of the iron plate 10 fixed on the inner surfaces of both ends of 17'
, 10c, said 1 drive piece 14.14'
, 15.15' are opposed to the inner surfaces of both ends of the movable contact leaf spring 7.7'.