JPS625289A - Led holder - 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 This invention relates to an LED mounting holder used when mounting an LED (light emitting diode) on a printed circuit board.

BACKGROUND OF THE INVENTION BACKGROUND OF THE INVENTION LEDs (light emitting diodes) are widely used in electrical equipment such as television sets to indicate whether a power switch is on or off.

Conventionally, LEDs have been installed in the display window of a cabinet, as shown in FIG. 6, for example. First, after attaching the LED to the printed circuit board 2 using the holder 1, the printed circuit board 2 is attached to the display window section 4 formed in the cabinet 8.
Install it at intervals on the back side of the The L'BD main body A is now fitted into the display window section 4, and on/off light emitting display can be performed through the window section 4.

However, in this conventional mounting structure, due to the constraints imposed by the LED leads, the mounting surface to the board is parallel to the display surface of the cabinet, and the main printed circuit board (hereinafter referred to as the main board) is placed horizontally inside the cabinet. The direction is always perpendicular to the LED mounting board 5, and a dedicated LED mounting board 2 had to be used separately for the main board 5 and -. This has resulted in problems such as a complicated mounting structure, time-consuming installation, and high costs due to the need for a separate dedicated board.

Therefore, a structure has been proposed in which the shape of the holder is devised so that the LED can be directly mounted on the main board via the holder. For example, after bending the LED lead in a predetermined direction at an angle of 90 degrees, the LED is oriented and attached to a holder, and then the LED is attached to the main board together with the holder. Next, after soldering the LED leads protruding to the back side of the board, when the main board is assembled into the cabinet, the LED body is positioned and fitted into the display window on the front face of the cabinet. However, with this mounting structure, depending on the position at which the lead is bent, the LED body may be misaligned with respect to the display window, and accurate alignment may not be possible. In addition, after bending the LED lead, attaching it to the holder, and then mounting the LED together with the holder on the main board, bending the lead is required in a separate process, and mounting to the board is a separate process. This will require a lot of effort.

Furthermore, many components are mounted on the main board,
-e means that many components are densely arranged on the board in order to increase the mounting density of those components. Also,
The LED is used by being fitted into a display window formed on the front surface of the cabinet. Therefore, the holder will inevitably be installed at the edge of the main board. However, if the LED leads are bent and mounted on the board as described above, the LED body will protrude further outward from the edge of the board, and during subsequent solder dipping,
The protruding portion may be an obstacle, and the board may not be held properly on the line, which may hinder the soldering process. Therefore, the LED leads must be straight during solder dipping.

This invention was made in view of the above points, and allows the LBD to be easily and securely attached to a printed circuit board without bending the leads, and by bending the leads in the desired direction when installing the printed circuit board, the LED body can be used to emit light. LED that can be easily set in the display position and has improved installation workability.
The object is to provide a mounting holder.

Means for Solving the Problems In order to achieve the above object, the present invention is characterized by the following configuration.

That is, the LED holder according to the present invention has a block-like shape as a whole, and has a recessed portion at the top into which the LED main body is fitted and held. A lead insertion hole for the LED is formed from approximately the center of the inner bottom portion to the installation surface (bottom surface) side of the mounting board. A thin hinge part is provided in the middle part, and this hinge part can be bent in a predetermined direction at a predetermined angle together with the inserted lead. In the configuration for the main body of this product, when the lead is inserted into the lead insertion hole and the LED main body is inserted into the recess and held, the LBD
is attached to the holder. When the holder is placed in a predetermined position on a mounting board such as a main board in this state, the leads are inserted into the insertion holes of the board, and the LED is mounted on the board together with the holder. Therefore, the LEDs are mounted on the substrate without bending the leads as in conventional structures.

After the leads are soldered on the back side of the board with a solder dip, when the holder is bent in a desired direction around the hinge portion, the leads inserted inside the holder are bent in the same direction at the same time. When the board is installed inside a cabinet or the like in this state, the LED main body is aligned and mounted on the display window of the front panel.

Embodiments Hereinafter, embodiments of the present invention will be described in detail with reference to FIGS. 1 to 5.

In these figures, reference numeral 10 is a printed circuit board, 20 is an LED holder according to the present invention, and A is an LED main body with two leads below it. , :a, a stands out. The printed circuit board 10 is a so-called main board on which many components (not shown) are mounted at high density.

As shown in FIG. 1, the LED holder 20 has a substantially prismatic block shape as a whole, and both sides of the middle part are cut out in a symmetrical wedge shape, and the wedge tips of the cutout parts 21, 21 abut against each other. A thin hinge portion 22 is formed in between along the width direction of the holder. The thin hinge portion 22 allows the shield holder 2o to be bent in one direction and the other direction at an angle corresponding to the wedge angle θ of the cutout portion 21 using the hinge portion 22 as a fulcrum. The wedge angle θ is 90 in the example.
° is set.

The holder 20 is composed of two upper and lower blocks centered around a thin hinge portion 22. Upper block 28 is LED
The main body source holder is formed with a recess 281 which is opened on the upper surface and into which the LED main body is inserted and held. Recess 28
1 is formed into a square hole shape according to the outer shape of the LED main body. Insertion holes 282, 282 for LED leads a, a are bored downward from the center of the inner bottom of the recess 281. The insertion holes 282, 282 penetrate through the bottom surface of the lower block, which is the installation surface on the printed circuit board 10.

A center line along the top and bottom of the holder 20 passes through the center of the thin hinge portion 22. Then, the above lead insertion hole 282
．． 282 is a reed that is symmetrical about the center line and runs through the center line on a plane that crosses the width direction of the holder. The bending centers of the two sides almost coincide with each other.

Therefore, for example, if the bending center of the lead is misaligned to either side with respect to the bending center of the holder, when the holder is bent to the opposite side to the misaligned side, the lead will be pulled excessively in the bending direction and stretched. However, according to this example, this does not occur and the sheet can be bent smoothly in either direction.

Further, on both sides of the lower block below the thin hinge portion 22, a pair of mounting legs 24, 24 are formed in a downwardly inverted manner and protrude. The tip of the mounting leg 24 extends further downward from the bottom of the holder, and the printed circuit board 1 is attached to the tip.
A locking claw 241 is formed through the mounting holes 101, 101 of 0 and engages with the peripheral edge thereof.

The LED holder 20 configured as described above is made of a resin such as nylon or polypropylene and is flexible and elastically deformable.

Next, the procedure for attaching an LED using the LED holder having the above configuration will be explained.

First, as shown in FIG. 2, lead a of the LED.

While keeping a straight, insert the insertion hole 282 of the holder 2o.
, 282, and fit the main body A into the recess 231 of the upper block 28. Then, the tips of the leads a and a protrude downward from the bottom surface of the holder 20 and are held within the LED main body source section 231.

With this, the LED can be attached to the holder 20 without bending the leads as in the conventional case.

Next, as shown in FIG. 8, the mounting legs 24 of the holder 20 are attached.
, 24 and LED leads a, a are formed in the printed circuit board 10 through holder mounting holes 101, 101 and lead insertion holes 10.
2. Position and insert the 102 and 102, respectively. Then,
The locking claw 241 at the tip of the mounting leg 24 passes through the mounting hole 101 and engages with the peripheral edge thereof, and the holder 20 is mounted on the board 10, and the LED is temporarily fixed onto the printed circuit board via the holder.

In this state, it remains straight and the holder 2° is also kept upright on the substrate. When solder dipping is performed in this state, the leads a and a of the LED are soldered and fixed on the back side of the printed circuit board 10, and L'ED is mounted on the printed circuit board 10 together with the holder. During this solder dip,
The LED holder 2o is held upright on the substrate surface without being bent. Therefore, the leads a and a of the LED are also kept straight. As a result, even at the edge of the board, there is no restriction on the installation location (the LED can be installed without any problem, and the solder dip process can proceed smoothly with the LED installed).

Thereafter, as shown in FIG. 4, the LED holder 20 is bent so that the thin hinge portion 21 protrudes to the outside of the LED main body board. Then, leads a, a of LE-・D
is bent at the same angle as the holder 20 is bent. This bending is done through the notch 22 on the bending side.
The holder 20 is held in a state bent at an angle of 90° along with the leads a and a in a state in which both the notch surfaces are in contact with each other. Thus, by bending the leads a and a, it becomes possible to attach the LED main body to the display window formed on the front surface of the main body base cabinet.

The above-mentioned lead bending operation can be easily performed by hand or fingers without using any special jig, since it is sufficient to simply apply force to the thin hinge portion 21 of the holder 20 and bend it. Therefore, the work of bending the leads is extremely simple.

Next, as shown in FIG. 5, when the printed circuit board 10 is installed in a cabinet (not shown), the LBD main body A is aligned and fitted into the display window 110 formed in the front panel 100.

As described in detail, according to the LED holder of the present invention, the LED can be easily attached to the printed circuit board at the same time as the holder is attached to the substrate, without bending the leads as in the conventional case. .

Then, when the holder is bent through the thin hinge, the L
The leads of the ED are easily bent in a predetermined direction, and when the printed circuit board is installed in this state, the LED main body is easily aligned and inserted into the display window of the front panel.

Therefore, the installation of the LED is easy and reliable, and the work efficiency can be improved. Furthermore, the mounting structure is simple and simple.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing an LED holder according to the present invention, Fig. 2 is a perspective view showing an LED holder according to the present invention;
The figure is a perspective view showing the state in which the LED is mounted, FIG. 8 is a front sectional view showing the state in which it is mounted on a printed circuit board, and FIG. 4 is a side sectional view showing the state in which the LED holder is bent together with the lead. Figure 5 shows LEDs installed on a printed circuit board.
A side sectional view showing the main body inserted into the front panel,
FIG. 6 is a side sectional view showing the structure of a conventional LED holder for mounting an LED. 20...LED holder, 281...
...Recessed portion, 282.282...Insertion hole, 22...Thin hinge part, A...
...LED body, a, a...Lead, 100...Front panel, 110...Display window. 1st Figure 11i31! i Figure 4 Figure 51! t

Claims (2)

[Claims] (1) The entire body is formed in a block shape, and has a recessed portion at the top into which the LED main body is fitted and held, and an LED lead insertion hole is formed through the inner bottom approximately at the center of the recessed portion on the installation surface side of the mounting board, and A thin hinge part is provided in the middle part, and this hinge part can be bent at a predetermined angle in a predetermined direction together with the inserted lead, and by the bending, the held LED main body can be bent when the board is installed. An LED holder characterized in that the LED holder is positioned and mounted at a light emitting display position. (2) It is symmetrical with respect to the holder center line passing through the hinge part and can be bent in one direction and the other direction around the hinge part, and the holder center line and the inserted lead center line substantially coincide with each other. The LED holder according to claim 1, characterized in that the LED holder is constructed as follows.