JPH04136845U - electromagnetic relay - Google Patents

Abstract

(57) [Summary] [Configuration] Has two flexure type electromagnetic blocks 8,
These are placed on the insulating base 9 in opposite directions.
A portion of the hinge spring 5, which is fixed to the yoke 3 constituting the electromagnetic block 8 and also fixed to the armature 4, is coated with an adhesive substance 15. [Effect] The movement of the armature of the movable contact spring when the coil current is energized or cut off is slowed down by the adhesive substance 15, and the collision energy between the contacts is small and the vibration of the hinge spring is suppressed, so the generated noise is extremely reduced. It can be made smaller.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

The present invention relates to electromagnetic relays, and more particularly to flexure-type electromagnetic relays.

0002

[Conventional technology]

Conventionally, such flexure type electromagnetic relays have two electromagnetic blocks facing oppositely to each other. It is mounted on an insulated base.

0003 FIG. 2 is a perspective view of an electromagnetic relay that is an example of such a conventional relay. As shown in Figure 2 , the conventional electromagnetic relay includes a spool 14 around which the coil 1 is wound, and this spool 14. An iron core 2 passing through the center of the iron core 2, a yoke 3 fixed to one end of the iron core 2, and the other end of the iron core 2 The armature 4 is attracted to the iron core 2 which faces the coil 1 and is excited by energizing the coil 1. , a hinge spring 5 that supports the movement of the armature 4, and a movable contact 6. two flexure-type electric currents each having a movable contact spring 7 interlocked with the spring 4; A magnetic block 8 is provided. These electromagnetic blocks 8 have insulated bases facing oppositely to each other. This flat insulating base 9 has fixed contact terminals 11, 1 in the center. A hole is formed through which the movable contact spring 7 is fixed so that the movable direction of the movable contact spring 7 is parallel to the flat plate surface. In addition, the two electromagnetic blocks 8 are fixed so as to be arranged point symmetrically with respect to the central part. . Further, the make-side fixed contact 10 faces each of the two movable contacts 6, and The make-side fixed contact terminal 11 is fixed to a mount section at the center of the insulating base 9. Further, the break-side fixed contact 12 faces each of the two movable contacts 6, and The side fixed contact terminal 13 is fixed to a mount section at the center of the insulating base 9.

0004

[Problem that the idea aims to solve]

The conventional electromagnetic relay described above uses a movable contact spring when the coil current is energized and when it is shielded. and the armature begins to move with a force proportional to the spring constant of the hinge spring, so that As the movable contact and the fixed contact on the break side collide, the vibration and noise of each spring will be generated. occurs. For this reason, conventional electromagnetic relays have the disadvantage of generating noise. be.

[0005] The purpose of the present invention is to reduce the noise caused by the operation of such a movable contact spring. Our objective is to provide electromagnetic relays that

[0006]

[Means to solve the problem]

The electromagnetic relay of the present invention has an iron core that penetrates a spool wrapped with a coil, and A yoke that is fixed to one end of the core and a yoke that faces the other end of the core and is attracted to the core during excitation. A pulled armature and a sticky material that supports the movement of the armature and partially a hinge spring coated with a material and a movable contact and attached to the armature. Two flexure-type electromagnetic blocks each equipped with an interlocking movable contact spring. It is fixed to a flat insulating base point-symmetrically, and the make-side fixed connection is attached to the center of the insulating base. A make-side fixed contact terminal with a dot, and a break-side fixed contact terminal with a break-side fixed contact. It is configured by arranging constant contact terminals.

[0007]

【Example】

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

[0008] FIG. 1 is a perspective view of an electromagnetic relay showing an embodiment of the present invention. As shown in Figure 1 , this embodiment includes a spool 14 around which a coil 1 is wound, and a spool 14 that runs through the center of the spool 14. An iron core 2 to be passed through, a yoke 3 fixed to one end of this iron core 2, and a yoke 3 facing the other end of the iron core 2. and an armature 4 that is attracted to the iron core 2 which is excited by energizing the coil 1. , a hinge spring 5 that supports the movement of the armature 4, and a movable contact 6. two flexure-type electromagnetic coils each having a movable contact spring 7 interlocked with the flexure 4; It has block 8. These electromagnetic blocks 8 have a mount part with a hole formed in the center. It is mounted in the opposite direction on the insulating base 9 having the same structure. This flat insulating base 9 is fixed in the center. A hole is formed through which the fixed contact terminals 11 and 13 are fixed, and the movable direction of the movable contact spring 7 is flat. Two electromagnetic blocks are placed parallel to the plate surface and symmetrically arranged with respect to the center. fix the block. These two electromagnetic blocks 8 correspond to each of the two movable contacts 6. It has two make-side fixed contacts 10 facing each other and is mounted at the center of the insulating base 9. The make-side fixed contact terminal 11 fixed in the hole of the part, and each of the two movable contacts 6 It has two break-side fixed contacts 12 facing the The break side fixed contact terminal 13 is fixed to the hole in the mount part. Moreover, In this embodiment, at least a portion of the hinge spring 5 is coated with an adhesive substance 15. ing. This sticky substance 15 is a soft rubber-like substance typified by tori mochi. . In particular, this adhesive substance 15 is applied to the outer surface of the hinge spring 5 which is bent into a substantially L-shape. It is effective if coated. This adhesive substance 15 causes the hinge spring 5 to move. It has inertia when in operation, and does not affect the springiness in any way when it is stationary. Nor.

[0009]

[Effect of the idea]

As explained above, the electromagnetic relay of the present invention has at least one surface of the hinge spring. By coating with a soft rubber-like sticky substance such as mochi, The movement of the movable spring and armature is slow when the coil current is energized and cut off. Therefore, the collision energy between the movable contact and the break side fixed contact becomes smaller and It also suppresses the vibration of the hinge spring when It has the effect of Furthermore, when the hinge spring is at rest, no adhesive material is present. Since no force is generated, the characteristic values of the electromagnetic relay are not affected.

[Brief explanation of drawings]

FIG. 1 is a perspective view of an electromagnetic relay showing an embodiment of the present invention.

FIG. 2 is a perspective view of an electromagnetic relay as a conventional example.

[Explanation of symbols]

1 coil 2 Iron core 3 York 4 Armature 5 Hinge spring 6 Movable contact 7 Movable contact spring 8 Flexure type electromagnetic block 9 Insulation base 10 Make side fixed contact 11 Make side fixed contact terminal 12 Plate side fixed contact 13 Break side fixed contact terminal 14 Spool 15 Adhesive substances

Claims (1)

[Scope of utility model registration request] 1. An iron core that penetrates a spool wound with a coil, a yoke fixed to one end of the iron core, an armature that faces the other end of the iron core and is attracted to the iron core during excitation, and a yoke of the armature. Two flexure-shaped electromagnetic blocks each having a hinge spring that supports the motion and is partially coated with an adhesive substance, and a movable contact spring that has a movable contact and is interlocked with the armature are symmetrically arranged in a flat plate shape. An electromagnetic relay fixed to an insulating base, characterized in that a make-side fixed contact terminal having a make-side fixed contact and a break-side fixed contact terminal having a break-side fixed contact are arranged in the center of the insulating base.