JPS5852601Y2 - Plug-in electromagnetic relay - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an improvement of a plug-in type electromagnetic relay that includes an ophthalmic base, a submagnal base, etc., and engages with a socket.

Conventionally, there has been a device of this type as shown in FIG.

In the figure, 1 is a base, 2 is a terminal plate arranged with a gap from the base 1, 3 is a yoke plate fixed to the terminal plate 2, 4 is an electromagnet fixed to the yoke plate 3, and 5 is a movable iron core equipped with a movable contactor 6, and when the movable iron core 5 is energized by the electromagnet 4, the electromagnet 4 resists the biasing force of a tension spring 7 stretched between the yoke plate 3 and the movable iron core 5. is attracted to.

8 is a fixed contact inserted into the base 1 so as to be opposite to the movable contact 6; 9 is the leg of the fixed contact 8 connected to the pin 10; 11 is integrally molded with the base 1; ,
Positioning key for fitting with socket (not shown), 1
2 is a lead wire that contacts the coil of the electromagnet 4, the movable contactor 6, and the pin 10, and 13 is a transparent cover.

Next, a procedure for assembling the electromagnetic relay configured as described above will be explained.

The base 1 and the terminal plate 2 on which the yoke plate 3 equipped with the electromagnet 4 and the fixed contact 8 are attached in advance are temporarily fixed using a separately provided holding jig, and the legs 9 of the fixed contact 8 and each lead wire 1 are
2 are inserted into the pins 10 and soldered, and the rear holding jig fixed by the soldering is removed.

Next, the movable iron core 5 to which the movable contactor 6 is attached is engaged with the relay plate 3 by the tension spring 7, and the transparent cover 13 is attached to the base 1.
It is assembled by fitting it in.

Since the above-mentioned electromagnetic relay is constructed as described above, during soldering work, in order to prevent the terminal board 2 from lifting up due to the repulsive force of the legs 9 of the fixed contacts 8 and the lead wires 12, use the holding jig as described above. Since the terminal plate 2 and the base 1 have to be temporarily fixed, the assembly efficiency is low and the positioning accuracy is poor.

The present invention was developed to eliminate the above-mentioned drawbacks, and the hollow hole provided on the positioning key and the protrusion provided on the terminal board are fitted into each other, and the base can be attached to the base without temporarily fixing the holding jig. The object of the present invention is to provide an electromagnetic relay that has a terminal plate fixed to it and has high positioning accuracy.

An embodiment of the present invention will be described below with reference to the drawings.

FIG. 2 shows an electromagnetic relay according to an embodiment of the present invention, and FIG. 3 shows the fixed portion between the base and the terminal board according to the present invention. In the figure, 1 is provided with a pin 10 and a positioning key 11. A base 14 is a hollow hole drilled in the positioning key 11; 2 is a terminal plate having a protrusion 15 that fits into the hollow hole 14; other parts except the base 1 and the terminal plate 2; This is no different from the conventional electromagnetic relay shown in FIG. 1, and has the same function.

Note that the tip of the protrusion 15 is split into two, and the hollow hole 1
The structure allows for easy insertion when fitting with 4, and increases the pressing force after insertion.

To assemble the electromagnetic relay configured as described above, the protrusion 15 of the yoke plate 3 equipped with the electromagnet 4 and the terminal plate 2 to which the fixed contact 8 is attached in advance is fitted into the hollow hole 14 provided in the base 1. let

At this time, lifting of the terminal board 2 due to the reaction force of the legs 9 of the fixed contactor 8 and the lead wire 12 can be prevented by fitting the hollow hole 14 and the protrusion 15. There is no need to use a jig.

As described above, according to the present invention, a plug-in type electromagnetic relay has a structure in which a hollow hole is provided in the base and a protrusion is provided in the terminal plate, and the protrusion is fitted into the hollow hole. The terminal board no longer lifts up due to the reaction force of
There is no need to use a holding jig, and the efficiency of assembly work can be greatly improved, and positioning accuracy can be improved by fitting the hollow groove and the protrusion.

Furthermore, this invention has the advantage that since a split groove is formed at the tip of the protrusion in the direction of its extension, it is easy to insert the protrusion into the hollow groove, and after insertion, the fitting force with the hollow groove can be increased. It also has

[Brief explanation of the drawing]

Fig. 1 is a partially sectional side view showing a conventional plug-in electromagnetic relay, Fig. 2 is a partially sectional side view showing a plug-in electromagnetic relay according to an embodiment of the present invention, and Fig. 3 is a mating portion. It is a partially cutaway sectional view showing the same reference numerals in the figure indicate the same or equivalent parts, 1 is the base, 2 is the terminal plate, 3 is the yoke plate, 4 is the electromagnet, 5 is the movable iron core, and 6 is the movable contact. , 8 is a fixed contact, 9 is a leg of the fixed contact, 10 is a pin, 11 is a positioning key, 12 is a lead wire, 13 is a transparent cover, 14 is a hollow hole, and 15 is a protrusion.

Claims (1)

[Scope of utility model registration request] A plug-in electromagnetic relay having a terminal plate and a base provided with a positioning key, the terminal plate having a protrusion, and the positioning key having a hollow groove that fits with the protrusion, into which the relay is fitted. A plug-in type electromagnetic relay for fixing the terminal plate and the base together, characterized in that a groove is formed at the tip of the protrusion in the direction in which it extends.