JPS6097526A - Method of mounting terminal of electromagnetic relay - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application: The present invention relates to an electromagnetic relay, and more particularly to an electromagnetic relay having a -row terminal arrangement configuration.

Prior Art: Adopting a single-row terminal arrangement configuration for electromagnetic relays has the advantage that the width of the relay can be designed to be much narrower than that of conventional multi-row relays, and high-density corrosion mounting is possible.

Normally, a relay with a single-row terminal arrangement is attached to a board using an automatic machine. In addition, accidents caused by installation can be reduced compared to conventional multi-purpose installations.
The arrangement of column terminals has the advantage that circuit nick nesting can be easily performed.

Purpose of the invention or point to be solved; In view of the above, the applicant proposed an electromagnetic relay having a single row terminal arrangement configuration in Japanese Patent Application No. 168994/1983.

However, in such electromagnetic relays, when attaching the terminals to the insulating base, a method is adopted in which each terminal is attached by caulking into a plurality of through holes for terminal attachment formed in the base in advance. As a result, the installation work becomes complicated and becomes a major bottleneck, especially when automating assembly.

In this invention, a relay terminal block consisting of a coil terminal, a common terminal, a normally open contact terminal, and a normally closed contact terminal is integrally connected and formed by continuous punching, and the relay terminal block is divided into two and insulated. It is characterized by the fact that the connecting piece between each terminal is removed after the base Cτ is clamped, so that the relay terminal block can be attached to the base F at the same time, making it easy to automate the assembly. The purpose is to

DESCRIPTION OF THE PREFERRED EMBODIMENTS Structure of the invention or means for solving problems; one embodiment of the much-anticipated invention will be described with reference to FIGS. 1 to 4.

The electromagnetic relay has an elongated rectangular parallelepiped shape as a whole and is composed of a terminal block 1 and an electromagnetic block 2.

The terminal block is not shown in Figures 3 and 4.
A thin metal plate made of a conductive material is continuously punched out using a press.

3. Knead each terminal in 4, 5, and 6.7, and connect the connecting pieces 8.9
It is held in a state where it is integrally connected via.

At the final stage of machining, the coil terminals 3 and 4 are bent at their upper ends 3A and 4A so that their tips point in opposite directions, and the common terminal 5 and the normally closed contact terminal 6 are bent. The open contact terminals 7 are provided with their upper ends 5 A and 6 , respectively.
/4,7 A is bent so that it faces in the same direction. In addition, the terminals 6 and 7 are bent so that the heights of the bent portions are slightly different from each other. A fixed iron core +4 is passed through the center of a coil bobbin 12 formed by winding a coil 13 around an electromagnetic block as shown in Fig.
an electromagnet M integrally fixed to the bobbin 12;
The plate spring 17 of the fixing metal fitting 17 is moved so that the movable piece 16A side facing the fixed cram core 14Vr can be suctioned in the direction of arrow P.
It consists of a movable iron piece 16 supported by Al/'. [
■A resin pusher +6B is housed at the free end of the moving iron 1 16 opposite to the movable piece 16A, so that the kneading is positioned opposite to the middle of the town moving Azusa point plate 18. The pressing operation of the contact plate 18 is performed based on the suction/opening operation of the movable piece 16A. At 19.20, it was installed on the contact plate 1B.
This is a contact point that has been digitized by 1. Note that the contact plate 18 is located at its extreme end 1.
8A on the upper end 5A of the common terminal 5 by spot welding or the like. 21.22i is a frame-shaped insulating base, and its bottom substrate 21A and inner end surface 21B of 22A are
, 22B are opposed to each other, and the terminal block 1 is sandwiched and supported between them. Therefore, terminals 3, 4, 6.
6.7 is the concave groove 21B+, 21B used for bottoming positioning.
2.21B3.21B4.21BS are formed respectively.

In other words, a concave hole 21c is formed approximately at the center of the inner end surface 21B of the substrate 22A, while a protrusion (concave and convex) that fits into the concave hole 210 is formed at a corresponding location on the inner end surface 21B of the substrate 22A. (not shown in FIG. 1) to form bases 21 and 22.
This is used for positioning when joining. Also, 2+D, 2
Side walls 21 erected from substrates 21A and 22A on 2D
F, Vr parallel to the base plate was provided from the middle 112 in 22/
41) In A, insulation is achieved between the electromagnet and the contact. In addition, there is a recess for drawing out the coil terminal on 21G and 22G.
21H and 22H are side walls 21E.

Both wing window portions 17B of the fixing metal fitting 17 formed at the outer wall corners of 22, +70 are the fitting engagement IL portions. 23id
This case consists of one transparent or opaque part.

Next, the assembly procedure of the electromagnetic relay according to the present invention will be explained with reference to FIG. 2.

According to this invention, the terminal block 1 is made of one thin metal sheet 1j.
After punching out the shape as shown in Figure 3 (a) using a press,
As shown in the same figure (b), bend the tip of each terminal, and then place the contacts 10 and I+ on the upper ends 6A and 7A of the terminals 6 and 7, and form them into the general shape shown in Fig. 2. , more town ffdJs
The lower end +8A of the point plate 18 is held at Jkj, @ which is joined to the upper end 5A of the four terminals 5 by spot welding or the like. The terminal 7' lock formed in advance as described above is positioned between the bases 21 and 22, and each terminal 3.4.5.6.
7 is the concave groove 21B1, 2+B2 of the base 21.

J11 [end face 21B,
22B are joined. At this time, the tip ij'p of each upper end portion 3A, 4A of the coil terminals 3, 4.

11 inside the base 21.22 through the holes 21K and 22K.
11 to the coil terminal drawer recesses 21G and 22G. Next, an electromagnet M integrally supporting the movable iron piece 16 is inserted into the lower part 0111 of the flute body formed by the joint VC of the bases 21 and 22. The side wall 2+E of the base 21.22 is attached to the movable iron piece 16 and the electromagnet M.
, Section 1 and Section 2 formed on the outer 1111 part of 22
1H, both open at 22+1.

Part 17B, +Fixing bracket attached to the bottom via +70
7 leaf spring + 7AI/14 elastically retains urine, town motion piece +
6Allr Suction operation is possible in the direction of arrow P?tl? Nakouk [I
Add an X.

The joined state of the bases 21 and 22 is fixed at the same time as the fixed fittings 17id that have been twisted. The end of the coil 13 wound around the bobbin 12 is fitted into the groove 22M for coil wiring formed on the side wall 22E of the base 22, and the upper end 3 of the terminal 3 is inserted into the groove 22M.
Connect to A. Although not shown, similar grooves are also formed on the base 21 side. After completing the wiring of each part in this way, the case 23 is closed. Then, in the final step, the combined pieces 8 and 9 of the terminal block 1 are cut and removed, thereby completing the assembly of the electromagnetic relay.

Effects of the Invention: As described above, the relay terminal block 1 is sandwiched between two split insulating bases, and then the connecting pieces between each terminal are removed to house the terminals in the base. As a result, the relay and terminal block can be attached to the base at the same time, which is particularly effective when used to automate assembly.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional front view of the electromagnetic relay according to the present invention, and FIG.
The figure is an exploded perspective view before assembly, Figure 3 is a -14 perspective view showing the manufacturing process of the terminal block, and Figure 4 is a side view of the terminal 7' lock. 1. Single axis terminal block, 2... Electromagnetic block, 3
．． 4... Coil terminal, 5... Common terminal, 6
...Normally closed contact terminal, 7...Normally open contact terminal,
8, 9...Series of knots, 12...Coil bobbin, 1
3...Coil, 14...Fixed core, 15...
・・Yoke, 16・・・Machido Chichichi piece, 17・・Fixed metal fittings, 18・・・Movable contact plate, 21.22・・・
Insulated base, 23-bent case.

Claims (1)

[Claims] A relay terminal block consisting of a coil terminal, a common terminal, a normally open contact terminal, and a normally closed contact terminal is constructed by integrally connecting the relay terminal block to a continuous punching, and the relay terminal block is sandwiched between two divided insulating bases. After that, the connecting pieces between each terminal are removed.