JPH0612020A - Assembled type light emitting diode device - Google Patents

Abstract

PURPOSE:To provide the assembled type light emitting diode display device which facilitates mounting, etc., to a panel and has good working efficiency. CONSTITUTION:A pair of mounting leg parts 3 are formed on the outer flank of a blind cylindrical case 2 opened in the upper part and a substrate 20 mounted with plural pieces of the light emitting diodes 21 is mounted into the case 2 and is sealed by a resin 11. The respective mounting leg parts 3 are provided with screw insertion holes 6 and O-rings 7 are installed to the circumferences of the screw insertion holes 6. 0-rings 10 are installed to the circumferences of lead wire leading holes 9 provided on the base 8 of the case 2. The mounting of the display panel 1 to the panel 30 is executed from the front surface side of the panel 30 as screws N are inserted into the screw insertion holes 6 and are screwed into threaded holes 31 of the panel 30. The infiltration of water into the mounted display device 1, etc., is prevented by the O-rings 7, 10.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a collective light emitting diode display device in which a plurality of light emitting diodes, each of which is formed by sealing a light emitting diode element with a lens-shaped mold made of a light-transmissive resin, is attached to a case, and more particularly, The present invention relates to a collective type light emitting diode display device in which the case has a cylindrical shape.

[0002]

2. Description of the Related Art A collective type light emitting diode display device of this type is used as an element of a large-sized display which is arranged vertically and horizontally on a panel and which displays characters by selectively lighting each display device. The conventional collective type light emitting diode display device of this type has the following configuration.
That is, a substrate with a plurality of light emitting diodes mounted is mounted in a bottomed cylindrical case with an open top, and the case is sealed with resin so that the heads of the lens-shaped mold parts of these light emitting diodes are exposed. Stop. Further, the lead wire connected to the electrode of each light emitting diode resin-sealed in the case is led out from the bottom of the case to the outside of the case. Further, a plurality of screw holes for screwing to the panel are formed on the back surface of the case.

In the work of mounting this collective type light emitting diode display device on the front surface of the panel, one worker fixes the display device at a predetermined position on the front surface of the panel, and another worker screws it from the back surface of the panel. It is done by Further, also in the work of removing the display device, one worker fixes the display device to be replaced, and another worker removes the screw on the back surface of the panel.

[0004]

However, the conventional example having such a structure has the following problems. In other words, as in the conventional example, if the structure is such that the collective type light emitting diode display device is attached to and removed from the panel from the back surface of the panel, the display device is attached to and removed from the panel of the display device. There is a problem in that work efficiency is poor because a minimum of two workers are required, one for fixing and one for fixing with screws. In addition, for maintenance work, etc., when removing a specific display device from the panel to which multiple display devices are attached, the worker who removes the screw on the back of the panel should select which display device to remove. There is also a problem that it is difficult to distinguish.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a collective type light emitting diode display device which can be easily attached to and detached from a panel and has high work efficiency. And

[0006]

The present invention has the following constitution in order to achieve such an object. That is, according to the present invention, a substrate on which a plurality of light emitting diodes are attached is attached to a bottomed cylindrical case having an open top, and the inside of the case is exposed so that the heads of the lens-shaped mold portions of the respective light emitting diodes are exposed. And a lead wire connected to the electrode of each light-emitting diode resin-sealed in the case is led out to the outside of the case through a lead wire lead-out hole formed in the bottom of the case. In the assembled light emitting diode display device, a pair of mounting legs that form the same plane as the bottom surface of the case are provided so as to face the outer surface of the case and a screw insertion hole is formed in the mounting leg portion. Further, an O-ring is attached around the lead wire lead-out hole, and the O-ring adheres tightly around the screw inserted into each screw insertion hole provided in each mounting leg portion. The in which annexed around the respective screw insertion holes.

[0007]

The operation of the present invention is as follows. That is,
A pair of mounting legs that form the same plane as the bottom surface of the case are provided on the outer surface of the case, and a screw insertion hole for inserting a screw is formed in the mounting leg. Insert into the screw insertion hole of the mounting leg,
Since the light emitting display device can be screwed to the panel by screwing it into the panel screw hole, mounting the light emitting display device on the panel,
Removal work can be done on the front side of the panel. Also, when the light emitting display device is installed outdoors or in an environment exposed to rain and snow, the O-ring formed around the lead wire lead-out hole allows it to enter the gap between the bottom surface of the light emitting display device and the surface of the panel. Since the sewage is prevented from entering the lead wire lead-out hole, water does not enter the inside of the light-emitting display device through the lead wire lead-out hole, and the lead wire led out from the lead wire lead-out hole is removed from the back surface of the panel. There is no intrusion into the back side of the panel from the part introduced into (inside). Furthermore, by forming an O-ring that closely adheres to the periphery of the screw inserted in each screw insertion hole provided in each mounting leg, water entering the gap between the bottom surface of the light emitting display device and the panel surface and each screw Water that has entered through the insertion holes does not enter the rear surface of the panel through the screw holes in the panel.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. A structure of a collective light emitting diode display device according to an exemplary embodiment of the present invention will be described with reference to FIGS.
FIG. 1 is a perspective view showing the configuration of the embodiment apparatus, FIG. 2 is a bottom view thereof, and FIG. 3 is a sectional view showing a state in which the embodiment apparatus is attached to a panel.

In this collective type light emitting diode display device (hereinafter referred to as a light emitting display device) 1, a bottomed cylindrical case 2 having an open top is used as an exterior package. This case 2
A pair of mounting leg portions 3 that are flush with the bottom surface 8 of the case 2 are provided on the outer side surface of the case 2 so as to face each other by 180 ° and extend in the case 2. A substrate mounting portion 4 for mounting the substrate is provided along the inner side surface 5 of the case 2. Each mounting leg portion 3 is provided with a screw insertion hole 6 into which the screw N is inserted, and when the screw N is inserted around the screw insertion hole 6 on the bottom surface side of each mounting leg portion 3, An O-ring 7 is attached so as to come into close contact with the periphery of the screw N. On the bottom surface 8 of the case 2, a lead wire lead-out hole 9 is provided so as to penetrate inside the case 2, and an O-ring 10 is attached around the lead wire lead-out hole 9.

On the other hand, on the substrate 20, a plurality of (1 in the figure)
Two pieces of the light emitting diodes 21 are mounted in close proximity to each other so as to form one dot at the time of display.
In each of the light emitting diodes 21, a light emitting diode element (not shown) is formed as a lens-shaped molded portion 21a made of a light-transmissive resin.
The lead wires 22 which are configured by being sealed with and are connected to the respective electrodes are led out from the back surface of the substrate 20.
The substrate 20 to which the light emitting diode 21 is attached is
It is mounted on the substrate mounting portion 4 in the case 2 described above, and is attached by being screwed with screws (not shown). At this time, the other one of the lead wires 22 led out from the back surface of the substrate 20 and one of which is connected to the electrode of each light emitting diode 20 is led out from the lead wire lead-out hole 9 provided in the bottom surface 8 of the case 2 described above. ing. Further, each light emitting diode 21 mounted in the case 2 is
The lens-shaped mold portion 21a is sealed with a resin 11 such as urethane so that the head is exposed.

The operation of mounting the light emitting display device 1 having the above-described structure on the panel 30 will be described below. First, the worker mounts the light emitting display device 1 on the panel 3 on the front side of the panel 30.
While supporting the mounting position of 0, the screws N are inserted into the screw insertion holes 6 of each mounting leg portion 3, and the screws N are attached to the panel 30.
Screwed into each screw hole 31 provided in
The light emitting display device 1 is screwed to the panel 30.

Then, the worker goes around the back surface of the panel 30 and inserts the lead wire 22 led out from the lead wire lead-out hole 9 of the attached light emitting display device 1 from the lead wire introducing portion 32 provided in the panel 30. It is introduced into the back surface (inside) of the panel 30 and connected to a power source (not shown) provided on the back surface of the panel 30.

As described above, since the light emitting display device 1 can be screwed to the panel 30 from the front side, the work of attaching the light emitting display device 1 to the panel 30 can be performed by one operator.

At this time, even when the light emitting display device 1 is attached to the environment such as outdoors where it is exposed to rain and snow, the O-ring 10 attached around the lead wire lead-out hole 9 causes the bottom surface 8 of the light emitting display device 1 to be connected. Since water that has entered the gap between the panel 30 and the surface is prevented from entering the lead wire lead-out hole 9, water does not enter the inside of the light emitting display device 1 through the lead wire lead-out hole 9 and leads Panel 3 through line introduction section 32
It does not enter the back side (inner side) of 0. Further, by providing the O-ring 7 that is in close contact with the periphery of the screw N inserted into each screw insertion hole 6 provided in each mounting leg portion 3, a gap between the bottom surface 8 of the light emitting display device 1 and the surface of the panel 30 is provided. Water that has entered or water that has entered through each screw insertion hole 6 is
1 does not enter the rear surface side of the panel 30.
Since the entire front surface of the light emitting display device 1 is sealed with the resin 11, intrusion of water is prevented.

On the other hand, the work of removing the light emitting display device 1 from the panel 30 is performed in the reverse order of the above-described mounting work. That is, on the back side of the panel 30, the worker
The lead wire 22 connected to a power source (not shown) is removed from the power source, and then is turned to the front side of the panel 30 to support the light-emitting display device 1 to be removed, and is inserted into each screw insertion hole 6 of each mounting leg portion 3 and the panel 30. The screws N screwed into the screw holes 31 are sequentially removed. Therefore, the work of removing the light emitting display device 1 from the panel 30 can be performed by one operator.

Next, a plurality of light emitting display devices 1 are mounted on the panel 3
The case of arranging them at 0 will be described with reference to FIG. This light emitting display device 1 has a cylindrical case 2 as an exterior package, and even if the light emitting display devices 1 are arranged close to each other, a gap 40 is formed between them and the gap 4 is formed.
If the mounting legs 3 of the respective light emitting display devices 1 are positioned at 0, the plurality of light emitting display devices 1 are arranged close to the panel 30 without the mounting leg parts 3 interfering with each other. be able to.

[0017]

As is apparent from the above description, according to the present invention, the collective light emitting diode display device can be screwed to the panel from the front side, so that one person can attach and detach the display device to and from the panel. It is possible to improve the work efficiency, and even in the detaching work, the screw is removed while supporting the display device to be removed, so that the display device to be removed is not mistaken. Also,
Even when the display device is installed in an environment such as outdoors where it is exposed to rain and snow, the O-ring attached around the lead wire lead-out hole allows water that has entered the gap between the bottom surface of the display device and the surface of the panel to lead. Since it is prevented from entering the wire lead-out hole, water is prevented from entering the inside of the display device through the lead wire lead-out hole, and at the same time, the lead wire led out from the lead wire lead-out hole is removed from the back surface of the panel ( Water is prevented from entering the back side of the panel from the part introduced into the inside). Furthermore, by attaching an O-ring that is in close contact with the periphery of the screw that passes through each screw insertion hole provided in each mounting leg,
Water that has entered the gap between the bottom surface of the display device and the front surface of the panel or water that has entered through the screw insertion holes is prevented from entering the back surface side of the panel.

[Brief description of drawings]

FIG. 1 is a perspective view showing a structure of a collective light emitting diode display device according to an embodiment of the present invention.

FIG. 2 is a bottom view showing the configuration of the apparatus of the embodiment.

FIG. 3 is a cross-sectional view showing a state in which the device of the embodiment is attached to a panel.

FIG. 4 is a plan view showing a state in which a plurality of example devices are arranged on a panel.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Collective light emitting diode display device 2 ... Case 3 ... Attachment leg 6 ... Screw insertion hole 9 ... Lead wire lead-out hole 7, 10 ... O-ring 11 ... Resin 20 ... Board 21 ... Light-emitting diode 21a ... Lens-shaped mold part 22 ... Lead wire 30 ... Panel 31 ... Screw hole 32 ... Lead wire introduction part

Claims (1)

[Claims] 1. A substrate having a plurality of light emitting diodes attached thereto is attached to a bottomed cylindrical case having an open upper portion, and the inside of the case is exposed so that the heads of the lens-shaped molded portions of the respective light emitting diodes are exposed. The lead wire, which is sealed with resin and is connected to the electrodes of each light-emitting diode resin-sealed in the case, is led out to the outside of the case through a lead wire lead-out hole formed in the bottom of the case. In the collective light emitting diode display device, a pair of mounting legs that form the same plane as the bottom surface of the case are provided so as to be opposed to the outer surface of the case,
A screw insertion hole is formed in the mounting leg, an O-ring is attached around the lead wire lead-out hole, and the screw is inserted into the screw insertion hole provided in each mounting leg. A collective type light emitting diode display device, wherein an O-ring is provided around each of the screw insertion holes.