JPS6326494B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a polarized balanced armature type relay.

For example, in single-type armature type relays such as 2A and 2B types, when the armature is attracted, a non-magnetic plate called a so-called residual plate is placed between the armature and the yoke to make it easier to return. Alternatively, the attraction force during operation is changed by inserting a plate made of a weakly magnetic material. In other words, the attraction force and spring load are matched using a residual plate, but in the case of relays with different spring loads, such as single type 2a, 2b, 3a1b, and 4a types, conventionally each spring load was Different materials and thicknesses of the residual plates are used depending on the situation. Therefore, relays with the same armature gap will not have a constant stroke, and the card margin and contact gap will differ, so characteristics such as withstand voltage and contact life will differ depending on each type. If you try to make the same stroke, you will have to change the armature gap for each type. Furthermore, since BeCu material has been used in this type of conventional residual plate, it is prone to rusting, which has the disadvantage of changing characteristics such as open circuit voltage and contact resistance.

The present invention was proposed in order to improve the above-mentioned drawbacks, and aims to stabilize and improve the quality by making the deviation in quality constant between relay types and eliminating the occurrence of rust. .

Next, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 shows the state in which the residual plate is used, with the end of an armature 2 being rotatably attached to a base plate (not shown) with a yoke 1 sandwiching the yoke. Reference numeral 3 denotes a residual plate, which is provided on one side of the yoke (because it is a single type relay). A movable contact 4 is turned on and off with respect to a fixed contact 5 by rotation of the armature 2.

FIG. 2 is a detailed diagram showing the relationship between the yoke 1 and the residual plate 3.

FIG. 3 shows a residual plate used in the present invention, in which the central side 6 is made of a non-magnetic or weakly magnetic material, such as a beryllium copper plate;
The outer part 7 is made of a ferromagnetic and highly rust-resistant material, such as a stainless steel plate.
Paste it on. That is, the outer part 7 is made of a ferromagnetic and strongly rust-resistant material, and is formed so as to surround the inner non-magnetic or weakly magnetic material.

FIG. 4 shows a perspective view of a relay using the residual plate of the present invention. 1 is a yoke, and a coil (not shown) is wound around this yoke.
2 is an amateur armature and is rotatably mounted around a shaft 8. Reference numeral 9 denotes a card portion that turns the movable contact 4 on and off relative to the fixed contact 5. 10 is a case, and 11 is a terminal group.

As described above, the present invention is a type of relay in which a residual plate is formed by pasting together plates made of a non-magnetic or weakly magnetic material on the center side and a ferromagnetic and rust-resistant material on the outside. (a) By changing the thickness of each plate made of each material to match the suction force and spring load without changing the overall thickness, (a) the thickness of the residual plate is constant, so the stroke is also constant. Therefore, the contact gap and card margin for each type are constant, so the characteristics can be made constant.

(b) Since the surface is covered with a highly rust-resistant material, there is no rust on the residual plate.

It has the following effects.

[Brief explanation of the drawing]

Fig. 1 shows the usage state of the reciprocal plate, Fig. 2 shows the relationship between the yoke and the reciprocal plate, Fig. 3 shows the reciprocal plate used in the present invention, and Fig. 4 shows the recipe of the present invention. A relay using Alplate is shown. 1... Yoke, 2... Armature, 4... Movable contact, 5... Fixed contact, 6... Center side, 7... Outer part, 8... Shaft, 9... Card part, 10... Case, 11...Terminal group.

Claims (1)

[Claims] 1. In a single type relay having an armature that is rotatably provided with a yoke in between, a residual plate is glued to the side surface of the yoke, and a non-magnetic Alternatively, a polarized balanced amateur type relay is formed by arranging a plate made of a weakly magnetic material and pasting plates made of a ferromagnetic and strongly rust-resistant material on both outer sides thereof.