JPH0548150A - Position regulation light emitting prevention diode - Google Patents

Abstract

(57) [Abstract] [Purpose] In a light-emitting diode used for display related to panels in the field of equipment, by forming the lead terminal part by plastic working, it is necessary to provide a function of position regulation and prevention of falling out. The purpose is to improve the workability in the case assembling process, improve the quality characteristics of the substrate, and reduce the total cost. A lead terminal 6 includes a stopper portion 6a that abuts an upper edge 8a of a board hole 8, a hold portion 6b that presses a side surface 8b of the board hole, and a snap portion 6c that engages a lower edge 8c of the board hole. Is formed.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a light emitting diode used for display of panels in the field of equipment.

[0002]

2. Description of the Related Art In a light emitting diode used for display, its lead terminal is usually inserted into a hole of a substrate and directly soldered to the substrate. The board layout and position are also determined by the case design. In addition, quality characteristics such as position, height, and fall from the case and the board are also required due to appearance quality such as visibility and incorporation into the case.

2 and 3 are detailed views showing the relationship between the light emitting diode and the case. 2 is a front view of the light emitting diode and FIG. 3 is a side view of the light emitting diode. 1 is a case, 2 is a light emitting diode, and 3 is a substrate. As shown in this figure, when the quality characteristics are satisfied with respect to the case 1 and the substrate 3, the assemblability into the case 1 is good, and there is no problem in appearance and visibility data when the light emitting diode is turned on.

When the light emitting diode is viewed from the current board manufacturing process, the forming shape of the lead terminal 2a of the light emitting diode is devised as shown in FIG. 4 in order to obtain quality characteristics such as position, height, and tilt from the board. Alternatively, as shown in FIG. 5, an insulating spacer 4 is inserted in the lead terminal portion to cope with the problem.

[0005]

However, these light emitting diodes have only the ability to secure the height when they are inserted into the substrate, and it is necessary to position the jigs in the front and rear, right and left by a jig during the soldering process. . Therefore, a fall prevention jig is used, but the jig insertability, that is, workability, is poor. And the floating of the light emitting diode was caused by the solder jet at the soldering part. Therefore, there are problems that the quality characteristics such as the position, height, and fall from the substrate are not satisfied, and the insertability into the case is poor, and the appearance and visibility are deteriorated.

In order to make up for it, a correction work is manually performed in a post process, and the workability is generally poor and the cost is increased.

It is an object of the present invention to satisfy required quality characteristics in a substrate manufacturing process and a case assembling process, improve workability, and achieve a comprehensive cost reduction.

[0008]

In order to achieve this object, the present invention provides a light emitting diode having a lead terminal inserted into a substrate hole, wherein the lead terminal is provided with a stopper portion that abuts against an upper edge of the substrate hole. It is characterized in that a holding portion for pressing the side surface of the substrate hole and a snap portion for engaging with the lower edge of the substrate hole are formed.

[0009]

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

FIG. 1 is a view showing a state in which the light emitting diode of this embodiment is mounted on a substrate. 6 is a lead terminal, 7 is a substrate, and 8 is a substrate hole. The lead terminal 6 is formed by plastic working, and in order to secure the height L, the substrate hole 8 is formed.
Using the stopper portion 6a that comes into contact with the upper edge 8a and the spring property of the lead terminal wire at the time of mounting, the side surface 8b of the board hole 8 is pushed in the left and right direction within the range of the board thickness t to hold it to prevent it from falling. A portion 6b and a snap portion 6c which is caught on the lower edge 8c of the substrate hole and prevents the portion from coming off are formed. When mounting on the substrate 7, it is possible to confirm the reliability of mounting by clicking. Also, in the soldering process, it is possible to proceed with the work without being affected by the warping of the substrate due to heat, the jet of solder, and the like.

[0011]

According to the present invention, the positional deviation, floating and jump of the light emitting diode are eliminated during the soldering process, and the quality characteristics are stable. As a result, man-hours for jig attachment during the soldering process and correction work in the post-process are eliminated, and overall cost reduction can be achieved.

[Brief description of drawings]

FIG. 1 is a front view showing a state in which a light emitting diode of an embodiment showing the present invention is mounted on a substrate.

FIG. 2 is a front view showing a relationship between a conventional light emitting diode and an external case.

FIG. 3 is a side view of the same.

FIG. 4 is a front view showing a general example of a forming shape of a conventional light emitting diode.

FIG. 5 is a front view showing a general example in which a spacer is attached to a conventional light emitting diode.

[Explanation of symbols]

 1 case 2 light emitting diode 4 spacer 5 substrate 6 lead terminal 6a stopper part 6b hold part 6c snap part 7 substrate 8 substrate hole L height from the top surface of the board to the top surface of the light emitting diode t board thickness

Claims (1)

[Claims] 1. A light-emitting diode having a lead terminal inserted into a board hole, wherein the lead terminal has a stopper portion that abuts an upper edge of the board hole, a hold portion that presses a side surface of the board hole, and a bottom portion of the board hole. A position regulation slip-out prevention light emitting diode characterized in that a snap portion engaging with an edge is formed.