JPH08162185A - Plate terminal - Google Patents

Abstract

PURPOSE: To prevent the occurrence of a solder crack or pattern breakage at mounting on a substrate. CONSTITUTION: A plate terminal 11 has bent foot parts 13 on both ends of a plate terminal body 12 and a screw hole 14 formed in the center part of the plate terminal body 12. A pair of rib part 15 bent on the side opposite to the foot parts 13 are formed on both side parts having no foot part 13 of the plate terminal body 12, and a connecting part 17 having the screw hole 14 is formed on the plate terminal body 12 through an opening part 16. The connecting part 17 having the screw hole 14 is connected to the rib part 15 side through a connecting part 18.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plate terminal mounted on a board.

[0002]

2. Description of the Related Art A conventional plate terminal of this type is shown in FIG.
The one shown in FIG. 5 is known. The plate terminal 1 has a plate-shaped plate terminal body 1a having legs 1b bent at substantially right angles at both ends, and a screw hole 1c for screwing to a case or the like at the center of the plate terminal body 1a. They are formed, and they are integrally molded by press molding or the like.

[0003]

However, in the above-mentioned conventional plate terminal 1, as shown in FIG. 6, the foot portion 1b is inserted into the through hole 2a formed in the substrate 2 and the foot portion 1b is inserted. Are fixed to the circuit pattern or the like on the back surface of the substrate 2 with solder 3. At this time, a gap t may be generated between the lower surface of the plate terminal body 1a and the upper surface of the substrate 2 due to variations in the shape of the plate terminal 1 during molding, and the plate terminal body 1a floats during soldering. May occur, or floating may occur due to contraction of the substrate 2 even after soldering.

Therefore, when the board 2 on which the plate terminal 1 is mounted in this state is screwed to the case 4 or the like as shown in FIG. 7, the screw 5 is screwed into the screw hole 1c of the plate terminal 1. When tightened by tightening, the plate terminal 1 is pulled and deformed in a direction in which there is no gap between the plate terminal 1 and the board 2, stress acts on the solder 3 and the wiring pattern formed on the board 2, cracks occur, and conduction failure occurs. There was a fear of becoming.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a plate terminal capable of preventing the occurrence of solder cracks and pattern breaks when mounted on a substrate.

[0006]

In order to solve the above-mentioned problems, according to the present invention, bent leg portions are provided at both ends of a plate terminal body, and a screw hole is formed in a central portion of the plate terminal body. In the plate terminal, the pair of rib portions bent to the opposite side of the foot portion are formed on both side portions of the plate terminal body where the foot portion is not provided, and the plate terminal body is opened. It is characterized in that a connecting portion having a screw hole is formed through the portion.

According to a second aspect of the present invention, the connecting portion having the screw hole is formed on the rib portion side through the connecting portion.

[0008]

According to the present invention, since the opening is formed between the screw hole of the plate terminal body and the foot portion, the screw is screwed into the screw hole and the plate terminal body around the screw hole is deformed. However, this deformation is absorbed by the opening and is not transmitted to the foot. Therefore, while the legs are not deformed, a pair of ribs are formed on both sides of the plate terminal body where the legs are not provided, so that the plate terminal body is weakened by forming the opening. The bending rigidity can be sufficiently reinforced, and the plate terminal body can be prevented from being deformed even when the periphery of the screw hole is deformed.

[0009]

Next, the present invention will be described in detail with reference to the drawings. 1 to 3 show a plate terminal according to an embodiment of the present invention. In these figures, the portions corresponding to those shown in the conventional drawings are designated by the same reference numerals and the description thereof will be omitted. To do.

In the figure, reference numeral 11 is a plate terminal formed in a rectangular shape, and the plate terminal 11 is formed with foot portions 13 bent substantially at right angles at both ends of a plate terminal body 12 in the longitudinal direction. A pair of ribs 15 is formed on both sides along the longitudinal direction of the plate terminal body 12 so as to be bent to the side opposite to the foot 13. In addition, a circular bulge portion 17 as a connecting portion is formed in the central portion of the plate terminal body 12 by a pair of left and right openings 16, and a connecting portion 18 is connected to the pair of rib portions 15.
Is formed through. Reference numeral 14 in the drawing denotes a screw hole formed in the circular bulging portion 17. Further, an edge portion 17a having a predetermined width is formed on the outer circumference of the circular bulging portion 17.

The center side of the pair of openings 16 is formed along the edge 17a of the circular bulging portion 17 in the width direction of the plate terminal body 12 up to the vicinity of the rib portion 15. Further, between each opening 16 of the plate terminal body 12 and the foot portion 13, a plate portion 12a having a width dimension similar to the width of the foot portion 13 is left. The plate terminal 11 of this embodiment is integrally formed by press molding.

Next, referring to FIG. 3, the plate terminal 1 of the present embodiment will be described.
A case where 1 is mounted on the substrate 2 will be described. Board terminal 1
One foot 13 is inserted into the through hole 2a formed in the board 2, and the foot 13 is fixed to the circuit pattern on the back surface of the board 2 with the solder 3. Then, the substrate 2 is placed inside the case 4, and the screw 5 is inserted from the outside of the case 4,
The plate terminal 11 mounted on the board 2 is screwed into the screw hole 14 and tightened.

As a result, the periphery of the screw hole 14 of the plate terminal 11 is pulled toward the substrate 2, and the screw hole 1 of the plate terminal 11 is pulled.
Even if the edge portion 17a of the circular bulging portion 17 is deformed due to a stress generated around the periphery of the opening 4, the deformation is caused by each opening 1
It is absorbed by 6 and does not reach the foot 13.
Further, since the rib portions 15 are provided on both sides of the plate terminal main body 12, the weakened bending rigidity of the plate terminal main body 12 can be sufficiently reinforced by forming the opening 16, and the entire plate terminal main body 12 is The foot portion 13 is securely fixed to the substrate 2 without being deformed.

Therefore, by using the plate terminal 11 of this embodiment, even if the board 2 is screwed to the case 4, the foot portion 13 of the plate terminal 11 fixed to the board 2 is not deformed, and the board 2 of the board 2 is not deformed. It is possible to prevent cracks from being generated in the solder 3 for fixing the foot portion 13 on the back surface, and stress from being applied to the wiring pattern formed on the substrate 2 to break the wiring pattern and cause conduction failure.

In this embodiment, the circular bulging portion 17 constituting the connecting portion is connected to the rib portion 15 via each connecting portion 18, but one connecting portion is cut off and only the other is Ω. You may form in a shape.

[0016]

According to the plate terminal of the present invention, the bent foot portions are formed at both ends of the plate terminal body, and the screw hole is formed in the central portion, and the screw hole and the foot portion of the plate terminal body are formed. Since the opening is formed between the holes, the stress generated near the screw hole is absorbed by the opening and this is not transmitted to the foot, and solder cracks and pattern breaks occur when the plate terminal is mounted on the board. Can be prevented.

Further, since the pair of rib portions are formed on both sides of the plate terminal body, the bending rigidity of the plate terminal body weakened by forming the opening can be sufficiently reinforced.

[Brief description of drawings]

FIG. 1 is a perspective view of a plate terminal showing an embodiment of the present invention.

FIG. 2 is a developed plan view of FIG.

FIG. 3 is an explanatory view showing a state in which the plate terminal of FIG. 1 is mounted on a board and is fixed to a case.

FIG. 4 is a plan view of a conventional plate terminal.

FIG. 5 is a side view of FIG.

6 is an explanatory diagram of a state in which the plate terminal of FIG. 4 is mounted on a substrate.

FIG. 7 is an explanatory diagram showing a state where the substrate of FIG. 6 is fixed to a case.

[Explanation of symbols]

 11 Plate Terminal 12 Plate Terminal Body 13 Foot 14 Screw Hole 15 Rib 16 Opening 17 Connection (Circular Swelling) 18 Connection

Claims (2)

[Claims] 1. A plate terminal, in which bent legs are provided at both ends of a plate terminal body, and a screw hole is formed in a central portion of the plate terminal body, wherein the legs of the plate terminal body are provided. A pair of ribs bent to the side opposite to the foot are formed on both sides not formed, and a connecting portion having a screw hole is formed in the plate terminal body through an opening. Board terminal to do. 2. The plate terminal according to claim 1, wherein the connecting portion having the screw hole is formed on the rib portion side via a connecting portion.