JPS60107226A - 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: By adopting a single-row terminal arrangement configuration in an electromagnetic relay, the width of the relay can be designed to be much narrower than that of conventional multi-row relays, and it has the advantage of allowing high-density installation.

In addition, relays with a row terminal arrangement are usually installed automatically into holes with a fixed pitch formed on the board using an automatic machine, but since the terminal arrangement is in a row, it is difficult to bend the terminals. It has various advantages, such as the fact that accidents resulting in failure to install can be reduced compared to conventional multi-row terminals, and circuit checking can be easily performed by arranging the -row terminals. The last person to file the application is listed above [
In view of this, we proposed an electromagnetic relay having a single-row terminal arrangement configuration in Special No. 56-168994.

OBJECT OF THE INVENTION σM Problem to be Solved; However, in the case of the electromagnetic relay as described above, when attaching the terminals to the insulating base, it is necessary to attach a plurality of terminals 1 formed on the base in advance.
(Since the method of attaching each terminal by caulking it to the through hole for the By the way, in these types of relays, the coil terminal and other terminals are formed from separate materials, similar to ordinary electromagnetic relays that do not have a single-row terminal arrangement. There is a problem in that the number of pieces and the number of manufacturing steps increase, making it uneconomical.

This invention has been made in view of the above points, and is a patent characterized in that the coil terminal and other terminals are formed from the same material, thereby reducing the number of parts and manufacturing man-hours.

DESCRIPTION OF THE PREFERRED EMBODIMENTS The structure of the invention or means for solving the gaps; one embodiment of the much-anticipated invention will be described with reference to FIGS. 1 to 3.

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

As shown in FIGS. 2 and 3, the terminal block is continuously formed by continuous punching of a single metal thin plate made of the r1 conductive phase using a press. 3.4.5 and 6.7 are the forces at each terminal, which are held in an integrally connected state via the loose connection pieces 8 and 9.

In the final stage of processing, 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, normally closed contact terminal 6, and normally open contact terminal 7 are bent, respectively. , and force the upper ends 5A, 6A, and 7A to be bent in the same direction. Also, terminals 6 and 7
are bent so that the heights of the bent portions are different from each other, and contacts 10 and 11 are housed in the upper ends 6A and 7A, respectively. The electromagnetic block is shown in FIG.
The movable iron piece 16 is supported by a leaf spring 17A of a fixed metal fitting 17 so that the movable piece +6A side facing the fixed iron core 14 can be sucked in the direction of arrow P. be done. A resin pusher 16B is attached to the free end of the movable iron piece 16 opposite to the movable piece +6A. Based on the suction/opening operation on the movable piece 16A side, the contact point (1i1s) is caused to perform a pressing operation.19
．． Reference numeral 20 denotes a contact housed in the contact plate 18. Note that the contact plate 18Vi's contact portion 18A is joined to the upper end portion 5A of the common terminal 5 by spot welding or the like. 21,2
21i frame-shaped insulating base, its bottom substrate 21A
, 22A's inner end surface 21. B and 22B are arranged to face each other and the terminal block 1 is sandwiched and supported between them. Therefore, the terminals 3, 4, 5, 6, 7 are positioned at the bottom of the inner end surface 21B of one of the substrates, and the grooves 21B+, 21B2, 21Ba, 2
1B4, 21B5 are formed respectively. In addition, the board 21A
A recessed hole 21C is formed approximately at the center of the inner end surface 21B of the substrate 22A, and a protrusion (not shown) that fits into the recessed hole 21G is formed at a corresponding location on the inner end surface 22B of the substrate 22A. 22 for positioning at the time of joining. cut, 2
Insulation between the electromagnet and the contact point is achieved by a barrier provided parallel to the substrate from the middle of the side walls 21F and 22, which are respectively erected from the bases 1D and 22D, 21A and 22A. Note that 21G and 22G are recesses for drawing out coil terminals, 21M and 22Hf (j: both wing windows iB of the fixing fitting 17 formed at the outer wall corners r of the side walls 21K and 22).
, 17C is the bottom locking part. 23 is transparent XA
11-' is a case made of an opaque member.

Next, I will explain the assembly procedure of the electromagnetic relay 7 according to this invention @2
This will be explained with reference to the figures.

After punching out the terminal block 1 from a piece of metal i'4 Jfi with a press into the state shown in Figure 3 (A), bend the tips of each terminal as shown in Figure 3 (B). Thereafter, the contacts 10.11 are attached to the upper ends 6A and 7A of the terminals 6 and 7 to form the state shown in FIG.
8A is held in a state where it is aligned with the upper end portion 5A of the common terminal 5 by spot welding or the like. The terminal block configured in advance as described above is positioned between the bases 21 and 22, and each terminal 3, 4, 5.6° 7 is inserted into the groove 21B5 of the base 21.
The inner end surfaces 21 of the substrates 21A and 22A are held facing each other by 21B2, 21Ba, 21B4, and 21B5.
B and '22B are joined. At this time, 22
A force is drawn from the inside of the base 21, 22 to the coil terminal drawer recesses 21G and 22G via K. Next, from the upper opening of the box body formed by joining the bases 21 and 22, the electromagnet M that integrally supports the movable iron piece 16
Insert. The movable iron piece 16 and the electromagnet M are mounted on a base 21.
22, elastically held by a temporary spring +7A of a fixing fitting 17 which is attached to the locking parts 21H and 22H formed at the outer wall corners of the side walls 21F and 22E of 22 through both wing window parts 17Bj7C). The movable piece 16A is retracted so that it can perform one suction operation in the direction of arrow P. Furthermore, the fixing fittings 17 simultaneously fix the joint state of the bases 21 and 22. 22M is the base 22
The end of the coil 13 wound around the bobbin 12 is inserted into the groove 22M and connected to the upper end 3A of the terminal 3. 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. In the final step, the connecting pieces 8.9 of the terminal block 1 are cut and removed, thereby completing the assembly of the electromagnetic relay.

Effects of the invention: Since the fill terminal and other terminals are formed of the same material as described above in this invention, the number of parts and manufacturing man-hours can be reduced compared to conventional electromagnetic relays, and the relay can be improved. The effect on cost reduction is key.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional front view of the electromagnetic relay according to the present invention, and FIG.
The figure shows the molecule before assembly! ? - Perspective view, FIG. 3 is a perspective view showing the manufacturing process of the terminal block. 1...Terminal block, 2...Electromagnetic block, 3゜4...Coil terminal, 5...Common terminal, 6...Normally closed contact terminal, 7 ... Normally open contact terminal, 8, 9 ... Connection q-1 + 2 - Bent coil bobbin, 13 - Bent coil, 14 - Fixed iron core, 15 -
Kaitsuchichichi, 16. Shimachi moving iron piece, 17...Fixing metal fittings,
18. Curved rotating contact counter, 21.22... Insulation base, 23. Curved case. C%l l F-? -1 h;

Claims (1)

[Claims] An electromagnetic relay terminal characterized in that a coil terminal, a common terminal, a normally open contact terminal, and a normally closed contact terminal are formed from a single conductive thin plate and are sandwiched and supported between two split insulating bases.