JPH0142915Y2 - - Google Patents

Description

[Detailed explanation of the idea] 〔Technical field〕 The present invention relates to an electromagnetic relay.

[Background technology]

Conventionally, this type of electromagnetic relay has an electromagnetic block 2 provided on one half of the upper surface of a base 1 and a contact portion 3 provided on the other half, as shown in FIGS. 1 to 3. The block 2 is made up of an excitation coil 4, a yoke 5, and an inverted L-shaped armature 6, and the contact part 3 has an NO side fixed contact terminal 7 and an NC
It is formed of a side fixed contact terminal 8, a movable contact spring 9, and a card 10 that drives the movable contact spring 9. The card 10 is inserted into the through hole 11 of the NC side fixed contact 8 and is connected to the protruding rib 1a of the base 1. Projecting rib 1 of cover 12
2a so as to be slidable in the horizontal direction. Reference numerals 10a and 10b are collars that restrict the sliding range of the card 10, and 18 is a terminal pin. By the way, in such a conventional example, the card 10
The armature 6 is coupled to the armature 6 by engaging an engagement recess 13 formed in a vertical piece of the armature 6 with an engagement protrusion 14 protruding from the side surface of the card 10. However, in such a conventional example, when attaching the electromagnetic block 2 to the base 1, the card 10
In order to couple the armature 6 with the armature 6, the electromagnetic block 2 is tilted with respect to the base 1 as shown in FIG.
In addition, it is necessary to attach the card 10 while holding it in the direction of arrow A, which makes assembly troublesome, and in particular, there is a problem that automatic assembly is difficult.

[Purpose of invention]

The present invention has been made in view of the above points, and its purpose is to provide an electromagnetic relay that is easy to assemble and can be easily assembled automatically.

[Disclosure of invention]

FIG. 4 and FIG. 5 show an embodiment of the present invention, and in an electromagnetic relay that is substantially the same as the conventional example,
A guide protrusion 15 having a triangular vertical cross section and having approximately the same height as the engagement protrusion 14 is provided on the side surface of the card 10, and a recess 16 for housing the guide protrusion 15 is provided in the vertical piece 6a of the armature 6. It is a thing,
In the embodiment, the engagement recess 13 and the recess 16 are formed by T-shaped holes, and the recess 16 also serves as a relief recess for the balance spring 17.

Now, as shown in FIG. 6a, the guide protrusion 15
By sliding the lower end of the vertical piece 6a of the armature 6 on the inclined surface of the base 1 and attaching the electromagnet block 2 to the base 1 from directly above as shown by the arrow B, the card 10 is moved in the direction of the arrow A by the guide protrusion 15. When the guide protrusion 15 is inserted into the recess 16 as shown in FIG. It is becoming more and more common. Therefore, simply by mounting the electromagnetic block 2 at a predetermined position on the base 1 from above, the card 10 and the armature 6 are automatically connected, and automatic assembly is facilitated.

[Effect of idea]

As described above, the present invention provides an electromagnetic block in one half of the upper surface of the base, a contact part in the other half, and an engagement recess bored in the vertical piece of the inverted L-shaped armature of the electromagnetic block. In an electromagnetic relay consisting of an engaging protrusion protruding from the side surface of a card that is slidable in the horizontal direction and drives a movable contact spring of a contact portion, the electromagnetic relay is configured to engage an engaging protrusion protruding from the side surface of a card that is slidable in the horizontal direction and drives a movable contact spring of a contact portion. A guide protrusion having a height and a triangular vertical cross section is provided, and a recess for storing the guide protrusion is provided in the vertical piece of the armature,
When attaching the electromagnet block to the base, by attaching the electromagnet from above, the engaging convex part of the card and the engaging concave part of the armature of the electromagnetic block automatically engage with each other, which simplifies assembly. It has the advantage that automatic assembly is easy.

[Brief explanation of drawings]

Fig. 1 is a sectional view of an embodiment of the present invention, Fig. 2 is an exploded perspective view of the main parts of the same, Fig. 3 is a diagram showing the assembled state of the above, Fig. 4 is a perspective view of an embodiment of the invention, Fifth
The figure is an exploded perspective view of the main parts of the same as the above, and FIGS. 6a and 6b are views showing the assembled state of the same. 1 is a base, 2 is an electromagnetic block, 3 is a contact portion, 6 is an armature, 10 is a card, 13 is an engagement recess, 14 is an engagement projection, 15 is a guide protrusion, and 16 is a recess.

Claims (1)

[Scope of utility model registration request] An electromagnetic block is provided on one half of the upper surface of the base, and a contact portion is provided on the other half, and the electromagnetic block is slidable horizontally into an engaging recess formed in the vertical piece of the inverted L-shaped armature. In an electromagnetic relay in which a movable contact spring of a contact portion is engaged with an engaging protrusion protruding from the side surface of a card that drives a movable contact spring, the side surface of the card has a triangular vertical cross section that is approximately the same height as the engaging protrusion. An electromagnetic relay comprising a shaped guide protrusion and a recess in the vertical piece of the armature to accommodate the guide protrusion.