JPH0572012U - Low intensity obstacle light - Google Patents

Abstract

(57) [Summary] [Purpose] To extend the maintenance cycle of low-luminance obstacle lights. [Structure] A plurality of substrates (4A, ..., 4H) on which a plurality of light emitting diodes (5) are arranged are detachably attached to the side surface and the upper surface of a frame body (1), and this assembly is mounted on a substrate (12) and an optical system. It is housed in a space surrounded by a transparent globe (16) and each substrate is connected in parallel to a power supply circuit (20).

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a low intensity obstacle lamp.

[0002]

[Prior Art]

 Conventionally, an incandescent light bulb installed inside a globe made of hard glass has been used as a low-light obstruction light to inform the aircraft of the existence of a structure that obstructs the flight of the aircraft.

[0003]

[Problems to be solved by the device]

 The life of an incandescent lamp is almost determined by the heat generation time of the filament. Therefore, low-luminance obstruction lamps that use heat-generating light bulbs cannot avoid a burning accident and require replacement work each time.

However, since there is a shortage of workers in recent years, it is necessary to secure workers for replacement work of incandescent light bulbs for obstacle lights, particularly obstacle lights installed at high places such as medium-wave antennas. It has become difficult.

In order to solve such a problem, an obstacle light is made by combining two light bulbs as one set, one light bulb is always turned on, and when the light bulb is burnt out, it is automatically operated by a relay or the like. There is an obstacle light that lights up the remaining light bulbs.

Even with this type of obstacle lamp, although the urgency of the bulb replacement work is reduced, there is no change in that the replacement work must be performed promptly. There is also the problem that the volume occupied by the obstruction lights will increase.

The present invention has a longer lifespan than the case of using an incandescent light bulb, and even if some internal elements fail, the obstruction light is not completely turned off and the light intensity is slightly reduced. The problem is to propose a low-luminance obstacle lamp that can do this.

[0008]

[Means for Solving the Problems]

 The above problems include a plurality of substrates on which a plurality of light emitting diodes are arranged, a frame body to which the above substrates can be detachably fixed on a side surface and an upper surface, a power source for lighting the light emitting diodes, and the above power source. And a connector for connecting the light-emitting diode on each board to each board, a base body to which the frame body is fixed, and a light-transmissive material detachably fixed to the board so as to cover the frame body. It was solved by a low-intensity obstruction light, which consisted of a globe.

[0009]

[Work]

 By using a plurality of light emitting diodes, it is possible to obtain a luminous intensity equal to or higher than that when an incandescent lamp is used.

Since the light emitting diode generates a small amount of heat, it consumes less power than when an incandescent lamp is used at the same luminous intensity.

Since the power supply to the light emitting diode is performed for each substrate, even if one light emitting diode fails, it only affects the luminous intensity of the substrate on which the light emitting diode is mounted. That is, the obstruction lamp is not completely turned off, but the luminous intensity is reduced as a whole. Therefore, the function as an obstacle light can be maintained.

When the light emitting diode fails, the substrate is replaced as a unit.

[0013]

【Example】

 FIG. 1 is a perspective view of an upper portion of a frame body of a low-luminance obstacle lamp according to the present invention. The upper part of the frame 1 has a hexagonal prism shape, and the six side surfaces 1A, 1B, 1C, 1D, 1E, 1F and the upper surface 1G are provided with mounting holes 2 for mounting a substrate therein, and Power feed holes 3 for feeding power from the inside are provided in the attached boards, respectively.

FIG. 2 is a top view of the frame body with the substrate attached. Substrates 4A, 4B, 4C, 4D, 4E, 4F are attached to the six side surfaces 1A, 1B, 1C, 1D, 1E, 1F of the upper hexagonal column of the frame 1, and the upper surface 1G is a base. Plates 4G and 4H are attached.

FIG. 3 is a front view of an example of the boards 4 A, 4 B, 4 C, 4 D, 4 E, and 4 F attached to the side surface of the frame 1, and FIG. 4 is a side view of the board of FIG. It is a sectional view of a part.

The substrates 4A, 4B, 4C, 4D, 4E and 4F are rectangular, and 50 light emitting diodes 5 are arranged on each of them. The board is attached to the attachment holes 2 of the frame 1 at the four corners using bolts 6 and spacers 7. It is also possible within the technical scope of the present invention to fix the substrate to the frame body by guiding the two opposite sides with a slide guide and inserting them without using bolts or the like.

On the back side of the board, there are provided connectors 8 for connecting to a power supply for supplying power to the light emitting diodes of the board.

FIG. 5 is a front view of an example of the substrates 4G and 4H attached to the upper surface of the frame body 1, and FIG. 6 is a side view of the substrate of FIG. 5 and a partial sectional view of the frame body 1.

The substrates 4G and 4H are trapezoidal, and 13 light emitting diodes 5 are arranged on each of them. The board is mounted in the mounting hole 2 of the frame body 1 using bolts 6 and spacers 7.

On the back side of the board, there are provided connectors 8 for connecting to a power supply for supplying power to the light emitting diodes of the board.

FIG. 7 is a partially sectional elevation view of an example of the low-luminance obstruction lamp according to the present invention.

Substrates 4A, 4B, 4C, 4D, 4E, and 4F are attached to the six side surfaces 1A, 1B, 1C, 1D, 1E, and 1F of the hexagonal prism portion on the upper part of the frame 1, and the hexagonal prism portion Substrates 4G and 4H are attached to the upper surface 1G.

A lower portion of the frame body 1 serves as a power source housing portion 9 in which a power source circuit (not shown) is housed.

The frame 1 is fixed inside a pot-shaped base 12 via bolts 10 and spacers 11.

At the center of the outer lower surface of the substrate 12, an obstacle lamp mounting member 13 having a parallel pipe thread is provided.

AC power is sent to the power supply circuit through a lead wire 14 passing through a hole provided inside the obstruction light mounting member 13 and in the center of the bottom surface of the base body, and DC power is sent from the power supply circuit through a lead wire 15 to each of the power supply circuits. Sent to the substrate.

A glove 16 having a hat shape is provided on the substrate 1 so as to cover the frame 1 fixed to the substrate 12 and the substrates 4A, 4B, 4C, 4D, 4E, 4F, 4G, and 4H. It is detachably fixed via a nut 18. That is, the frame body 1, the substrate, the diode 5, and the power supply circuit are housed in the space surrounded by the base 12 and the globe 16. It should be noted that it is possible within the technical scope of the present invention to arrange a waterproof sealing between the globe 16 and the base body 12 and around the conductive wire 14.

The globe 16 is made of light-transmissive hard glass. Therefore, the light passes through the light globes 16 emitted from the large number of light emitting diodes 5 on the six side surfaces and the upper surface of the frame and propagates to the external space.

In order to reduce the direction dependence of the light intensity of the low-luminance obstacle lamp, it is preferable to provide a large number of irregularities on the inner surface or the outer surface of the globe 16.

FIG. 8 is an example of an electrical connection diagram for the low intensity obstruction lamp of FIG. AC power is sent to the power supply circuit 20 via the lead wire 14 and the fuse F.

The power supply circuit 20 is a bipolar DC power supply circuit including, for example, a switch regulator, and generates +24 V DC and −24 V DC. The power supply circuit is not particularly limited to this circuit, and a single-polarity DC power supply circuit or a single single-wave or double-wave rectification circuit can also be used.

The DC + 24V output is sent to the substrates 4A, 4C, 4E, 4F, and the -24V output is sent to the substrates 4B, 4D, 4F, 4H.

The conductor 15 connected to the output terminal of the DC power source 20 is connected to the substrates 4A, 4B, 4C, 4D, 4E, 4F, 4G and 4H by the connectors 8A, 8B, 8C, 8D, 8E, 8F, 8G, and 8F, 8G, respectively. Bound via 8H.

On the substrates 4A, 4B, 4C, 4D, 4E, and 4F, a circuit in which ten light emitting diodes and a protection resistor R are connected in series is one pack, and five packs are connected in parallel.

A circuit in which six or seven light emitting diodes and a protection resistor are connected in series on the substrates 4G and 4H is one pack, and two circuits are connected in parallel.

When one light emitting diode fails, all the light emitting diodes in one pack to which the light emitting diode belongs are extinguished. For example, if one light emitting diode (for example, a light emitting diode with an X mark) in the top 10 light emitting diodes 5 in FIG. 8 fails, all the top 10 light emitting diodes are turned off.

However, the 40 light emitting diodes of the second to fifth stages on this substrate maintain the lighting state. That is, even if one light emitting diode on one substrate fails, the substrate is not completely extinguished, only the luminous intensity decreases.

At this time, since the amount of light emitted from the other substrates does not change, the brightness of the low-luminance obstruction lamp as a whole is not affected.

When the light emitting diode of the low-luminance obstacle lamp fails, the entire substrate on which the failed light emitting diode is mounted is replaced during maintenance.

It is also within the technical scope of the present invention to provide a control circuit for blinking the light emitting diode or a current detector for detecting the current of each pack in order to know which pack is out of order. Is possible.

[0041]

[Effect of the device]

 i) Even if one light emitting diode fails, it does not need to be replaced immediately, so the replacement cycle can be extended. That is, it can be maintenance-free. Therefore, it is easy to secure the number of replacement personnel. ii) Compared with the case of using an incandescent light bulb, the electric power for obtaining the same luminous intensity is about 1/10.

[Brief description of drawings]

FIG. 1 is a perspective view of an upper portion of a frame body of a low intensity obstacle lamp according to the present invention.

FIG. 2 is a top view of the frame body with a substrate attached.

FIG. 3 is a view showing boards 4A and 4 mounted on the side surface of the frame body 1
It is a front view of an example of B, 4C, 4D, 4E, and 4F.

4 is a side view of the substrate of FIG. 3 and a sectional view of a part of the frame body 1. FIG.

FIG. 5: Substrates 4G, 4 mounted on the upper surface of the frame 1
It is a front view of an example of H.

6 is a side view of the substrate of FIG. 5 and a sectional view of a part of the frame body 1. FIG.

FIG. 7 is a partially sectional elevation view of a low-luminance obstruction light according to the present invention.

FIG. 8 is an electrical connection diagram 1 for the low-light obstruction light of FIG.
Here is an example.

[Explanation of symbols]

 1 Frame 1A, 1B, 1C, 1D, 1E, 1F Side of Frame 1G Top of Frame 4A, 4B, 4C, 4D, 4E, 4F, 4G, 4H Board 5 Light Emitting Diode 8 Connector 9 Power Source Housing 12 Board 13 Obstacle light mounting member 16 Globe 20 Power circuit

Claims (1)

[Scope of utility model registration request] 1. A plurality of substrates on which a plurality of light emitting diodes are arranged, a frame body on which a side surface and an upper surface can be detachably fixed, a power source for lighting the light emitting diodes, and the power source. And a connector for connecting the light-emitting diode on each substrate to each substrate, a base body to which the frame body is fixed, and a light-transmissive material detachably fixed to the base body so as to cover the frame body. Low intensity obstruction light, which consists of a globe.