JP2007087614A - Underwater lighting system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an underwater lighting system which raises fish-gathering effect by lighting broadly under water, can be used enough even under environment in depth of water where water pressure is high, and makes fishing work easy. <P>SOLUTION: The underwater lighting system comprises an exterior rigid frame 6 in an approximately cylindrical shape, an attachment frame 7 attached to the inside of the exterior rigid frame 6, and a plurality of underwater lightings 1 using blue LEDs (light emitting diodes) attached to the attachment frame 7 which emit light through the exterior rigid frame 6 as light sources. The exterior rigid frame 6 consists of a cylinder with the same outer diameter, and a tapered cylinder connected to the lower part of the cylinder whose outer diameter decreases as it approaches a tapered cylinder's lower end with an opening. The underwater lightings 1 are attached to the inside of the cylinder with the same diameter and the inside of the tapered cylinder via the attachment frame 7. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an underwater lighting device. More specifically, the present invention relates to an underwater lighting device that can be used for fish collection and other uses in water and in the sea.

  Fish lamps, which are typical uses of underwater lighting devices, have a long history, and instead of fish lamps that used oil and acetylene lights in the Taisho era, fish lamps replaced the electrified light bulb type when entering Showa. I went. The light bulb was originally a tungsten filament type incandescent lamp, but had disadvantages such as low electrical / optical conversion efficiency, large heat generation, and short life. This led to the replacement of power efficient halogen lamps in the late 1970s. This halogen lamp is a kind of incandescent lamp. However, by enclosing a halogen element or a halogen compound together with an inert gas in a sphere, the lamp life is greatly extended and the attenuation of the luminous flux is reduced. In 1980, metal halide lamps with even greater light power became the mainstream, leading to today.

FIG. 11 shows a fish method using a metal halide lamp as a fish collection lamp. 100 is a metal halide lamp suspended from the fish boat S into the sea. The depth to be lowered into the sea is about 100 m to 200 m in accordance with the habitat of the fish, and the light irradiation radius of the metal halide lamp 100 is about 50 to 80 m. A metal halide lamp is a kind of a discharge lamp similar to a fluorescent lamp or a mercury lamp, and light is radiated in all directions because it is a point light source.
Considering the effective emissivity of this metal halide lamp, the sea area operated by a purse seine fishery is usually performed at a depth of 150m to 300m. The main catches, horse mackerel and mackerel, usually live near 100m or below. Currently used metal halide lamps are point light sources that emit light in all directions, but little fish gather in the upper direction of all metal halide lamps 100, and fish gather only in the lower part. Considering the habit of this fish, the light irradiated above it is unnecessary, and at present, it emits more than double the required light.

  In addition, the metal halide lamp consumes a large amount of power, and the fuel consumption of the inboard engine for supplying the power is enormous, which presses down the balance of the fishery and causes environmental damage such as global warming. In addition, metal halide lamps have a large amount of heat radiation, and it is pointed out that the temperature in the sea is increasing and destroying marine ecosystems such as plankton.

By the way, an LED (light emitting diode) is known as a light emitter that consumes less power and can reduce the amount of heat generation, and an underwater lighting device using the LED also exists.
An example of such a known technique is JP-A-2001-357703 (Patent Document 1). In this conventional example, a light emitting part by an LED capable of irradiating light into water in a bathtub is covered with a concave lens. This concave lens can irradiate light from the LED over a wide range, but if the light diffuses, the lightness becomes low, so it is not suitable for fish collection. It is only for production such as bathtubs.

As another conventional technique, there is JP-A-2003-178602 (Patent Document 2). This is an underwater projector, and a main body formed in a cylindrical container shape and a front cover formed in a short cylindrical container shape are integrally coupled via a heat sink. The front cover is formed of a transparent resin and is configured as a lens. The lamp chamber in the front cover is kept liquid-tight inside by a seal ring. In addition, an LED board in which a plurality of LEDs are mounted in a disk shape is embedded inside the lamp chamber, and light emitted from each is transmitted through a front cover that is a lens and irradiated. Yes.
However, this front cover is a glass cover and has no function of diffusing or converging light.

JP 2001-357703 A JP 2003-178602 A

  In view of the above circumstances, the present invention can improve the fish collection effect by irradiating light in a necessary range underwater, and can be used sufficiently even in an environment where the depth of water is deep and high pressure is applied, and it is easy to perform fishing work. The purpose is to provide.

An underwater lighting body according to a first aspect of the present invention includes a substantially cylindrical outer rigid frame, a mounting frame provided inside the outer rigid frame, and a blue LED that is attached to the mounting frame and emits light through the outer rigid frame. It is characterized by comprising a plurality of underwater illuminating bodies using a light source.
An underwater lighting body according to a second invention is the underwater illumination body according to the first invention, wherein the outer rigid frame is provided in an equal-diameter cylindrical portion having the same outer diameter and a lower portion of the equal-diameter cylindrical portion, and is directed toward the lower end. The underwater illumination body is attached to the inside of the equal-diameter cylindrical portion and the tapered cylindrical portion via the mounting frame, the tapered cylindrical portion having a reduced diameter and opened at the bottom end. It is characterized by.
An underwater lighting body according to a third invention is the underwater lighting body according to the second invention, wherein the underwater lighting body arranges a plurality of blue LEDs in a matrix shape and stores them in a storage case, and stores the storage case in an outer cover. The storage case is sealed by coating and filling.
An underwater illumination body according to a fourth invention is the underwater illumination body according to the first invention, wherein the substantially cylindrical outer rigid frame is composed of only an equal-diameter cylindrical portion, and a plurality of bars extending in the longitudinal direction of the equal-diameter cylindrical portion; It is composed of a fixed flange that holds a plurality of bars in the circumferential direction at intervals, the mounting frame is composed of a transparent resin double pipe, and the underwater illumination body is hollow in the double pipe It is put in the part.
An underwater lighting body according to a fifth invention is the underwater lighting body according to the fourth invention, wherein the mounting frame has an underwater lighting body placed in a hollow portion of the double pipe and sealed at both ends with a resin, and the underwater lighting body is attached to a substrate. A blue LED is attached.

According to the first invention, since the plurality of underwater illumination bodies are attached to the substantially cylindrical attachment frame, it is possible to irradiate the entire circumferential direction evenly. In addition, since the outer rigid frame is outside the mounting frame to which the underwater illumination body is attached, the apparatus will not be damaged by hitting the hull during fishing that is lifted from the sea or lowered into the sea. Moreover, since it is cylindrical overall and the water pressure acts and balances from the inside and outside, damage due to water pressure is unlikely to occur. Furthermore, since the bottom end is open, seawater falls off when it is lifted, so that the lifting weight is light and easy to handle.
According to the second invention, the underwater lighting body itself is protected by the storage case, and further, its outer surface is sealed by the resin filled and filled with the outer cover, so that it is given water resistance, so it is used by being submerged deeply in water. can do.
According to the third aspect of the invention, the side surface can be irradiated with light by the underwater illuminator having an equal diameter cylindrical portion, and the light can be irradiated obliquely downward by the underwater illuminator having a tapered tube portion. Only light can be irradiated. For this reason, the fish collection effect is high.
According to the fourth aspect of the invention, since the bottom end is opened with the same inner diameter as that of the equal-diameter cylindrical portion, and the seawater falls off during the lifting, the lifting weight is light and easy to handle.
According to the fifth aspect of the present invention, both ends of the double pipe are sealed with resin so as to have water tightness, so that necessary water resistance can be ensured even if the blue LED is inserted on the substrate. it can.

Next, underwater illumination devices A and B according to the present invention will be described with reference to the drawings.
The underwater lighting device A shown below is a large one that operates using a mechanical device such as a winch, and the underwater lighting device B is a small one that operates manually.
(Underwater lighting device A of the first embodiment)
FIG. 1 is a perspective view of the underwater illumination device A according to the first embodiment of the present invention as viewed obliquely from above. FIG. 2 is a perspective view of the underwater illumination device A shown in FIG. FIG. 3 is a plan view of the underwater illumination device A of FIG. 4A is a side view showing the mounting structure of the mounting frame and the underwater illumination body, and FIG. 4B is a front view of the same.

  1 to 3, reference numeral 6 denotes an outer rigid frame of the underwater illumination device A. The outer rigid frame 6 is a substantially cylindrical frame. The “substantially cylindrical shape” includes not only a cylindrical shape but also a polygonal shape that is close to a cylindrical shape. The illustrated outer rigid frame 6 includes 12 vertical rods 61 arranged in a circle to form a dodecahedron cylindrical member. Arranged at equal intervals on the top, each vertical bar 61 is fixed by three annular bars 62, 63, 64. This outer rigid frame 6 is a strength member and has a sufficiently high rigidity that it does not deform during fishing.

Between the upper annular rod 62 and the intermediate annular rod 63 is the same diameter portion 6A, and between the intermediate annular rod 63 and the lower annular rod 64, the outer diameter decreases toward the lower end. It is the taper cylinder part 6B which goes. A suspension ring 65 is coupled to the upper annular rod 62. The annular rod 64 at the lower end has a smaller inner diameter than the annular rods 62 and 63 of the equal-diameter portion 6A, but has an inner diameter sufficient to ensure a sufficiently large opening at the lower end.

  When a rope or the like fed from a fishing boat is engaged with the suspension ring 65, the underwater lighting device A can be lowered or lifted into the sea by a mechanical device such as a winch, a traction machine, or a roller. At that time, since the bottom end of the underwater lighting device A is greatly opened, seawater falls off during the lifting, and the lifting weight is light and easy to handle.

  A mounting frame 7 is provided inside the outer rigid frame 6. The mounting frame 7 may be of any structure and shape, such as a pipe or a plate, and only needs to be able to mount the underwater illumination body 1 described later. The mounting frame 7 is provided inside both the equal-diameter cylindrical portion 6A and the tapered cylindrical portion 6B.

  As shown in FIG. 4, a plurality of underwater illumination bodies 1 are attached to the outer surface of the attachment frame 7 with the light emitting surface facing outward. The number of attached underwater illumination bodies 1 is three in the upper and lower parts in the equal-diameter cylindrical portion 6A, but is not limited thereto, and may be two or less or four or more. Further, the tapered cylindrical portion 6B has one stage, but may have two or more stages. And the illuminance becomes brighter as the number of underwater illumination bodies 1 increases. In addition, the number of polyhedrons is a dodecahedron in the figure, but may be 11 or less, or 13 or more. And as the number of face pieces increases, light can be irradiated evenly in the entire circumferential direction.

  Each underwater lighting body 1 is held by a mounting frame 7, but its surface is drawn inward from the inside of the outer rigid frame 6. For this reason, even if the underwater lighting apparatus A hits the hull of a fishing boat during fishing, the underwater lighting body 1 will not be damaged.

  As described above, since the underwater lighting device A is operated by a mechanical device, the weight and size are not particularly limited, but it is not necessary to increase the size of the underwater lighting device A, so that the diameter is generally 300 to 700 mm and the length is 500 to 500. About 1000mm is appropriate.

(Structure of underwater lighting body)
Since the underwater illumination device A includes a plurality of underwater illumination bodies 1, the configuration of the underwater illumination body 1 will be described next.
FIG. 5 is a cross-sectional view of the underwater illumination body 1 used in the underwater illumination device A. 6 is a cross-sectional view of the main part of the underwater illumination body 1 of FIG. FIG. 7 is a perspective view of the underwater illumination body 1 of FIG.
As shown in FIG. 7, the underwater illumination body 1 has an outer cover 2 and a storage case 3 (shown by dotted lines), but the underwater illumination body 1 is mainly composed of three members as shown in FIG. 5. . In other words, in addition to the outer cover 2 and the storage case 3, it is composed of an LED mounting substrate in which a number of LEDs 5 are fixed to the substrate 4.

The above three members will be described with reference to FIGS.
First, the substrate 4 is a known printed circuit board, that is, a substrate of an appropriate size made of a non-conductive material such as glass fiber or epoxy resin. A large number of LEDs 5 are vertically and horizontally aligned on the substrate 4 and attached at appropriate intervals. Therefore, a large number of LEDs 5 are arranged in a matrix on the surface of the substrate 4. The legs of the LEDs 5 are inserted into the holes of the copper circuit provided on the substrate 4 and connected to each other, and are connected to the conductive cord 7e. This LED 5 is an LED that emits blue light, which is known to have a high fish collection effect.

The storage case 3 is a hexahedral block, and is made of a material having impact resistance, transparency, and high rigidity, for example, polycarbonate resin or acrylic resin. A large number of storage holes 8 e are perforated from the back surface of the storage case 3 toward the ceiling portion 11. The perforation positions of the storage holes 8e are the same as the vertical and horizontal arrangement positions of the LEDs 5, and the number of the storage holes 8e is the same as the number of the LEDs 5. Accordingly, the storage holes 8e are also formed in a matrix.
The inner diameter of the storage hole 8e is the same as or slightly larger than the outer diameter of the LED 5, and a side wall 9e is formed between the adjacent storage holes 8e, 8e.
The depth h of the storage hole 8e is larger than the height of the LED 5, but smaller than the height of the storage case 3. As a result, a ceiling portion 11 is formed on the upper surface of each storage hole 8e.

The outer cover 2 is a generally dish-shaped member, and is made of a polycarbonate resin which is a material having high impact resistance, transparency and high rigidity. The outer cover 2 includes a flange portion 21 and a flange portion 22 at the periphery thereof. A recess 24 is formed in the center of the flange portion 21 with an appropriate partition member 23.
The storage case 3 is adapted to fit into a recess 24 defined by the partition member 23.

  When assembling the above-described underwater illumination body 1, the LEDs 5 on the substrate 4 are combined so as to be fitted in the storage holes 8 e of the storage case 3. Then, a thick epoxy resin 30 is applied to the inner surface of the outer cover 2, and the upper surface of the storage case 3 is pressed against the inner surface of the outer cover 2. As a result, the top surface of the storage case 3 is bonded to the inner surface of the outer cover 2 with the epoxy resin 30 previously applied. Further, the gap between the periphery of the storage case 3 and the outer cover 2 (or its partition member 23) is filled with the epoxy resin 30 and is also thickly applied to the bottom surface of the substrate 4. Thus, when the epoxy resin 30 is solidified, the storage case 3 is fixed in the outer cover 2, and the underwater illumination body 1 is completed.

In the assembled state as shown in FIG. 5, each LED 5 is double protected by the storage case 3 and the outer cover 2 which are rigid members. The storage case 3 and the outer cover 2 are both made of a resin having high impact resistance and have extremely high rigidity. Therefore, the storage case 3 and the outer cover 2 are resistant to external pressure, particularly underwater, and can be used up to a depth of about 200 m. Become.
Further, the periphery of the storage case 3 and the back surface of the substrate 4 are also filled with the epoxy resin 30 so that no gap is formed between the outer cover 2. For this reason, since the intrusion of seawater can be completely prevented while the pressure resistance is improved, the electric system is not short-circuited.

  Moreover, since each said LED5 is hold | maintained in each storage hole 8e in the storage case 3 in the state which contacted the side wall 9e, all the LEDs 5 will be surely pointed ahead. And all the many LED5 arrange | positioned at matrix form face front, The light which each LED5 emits will be directed only ahead, and it will be able to irradiate brightly also in a dark place like the deep sea.

As shown in FIG. 6, in each LED 5, the upper surface of the light emitting chip 51 is covered with a dome-shaped resin cover 52, and a foot 53 is attached under the light emitting chip 51. As described above, the foot 53 passes through the hole of the copper circuit 4 </ b> C provided in the substrate 4, and the LED 5 is fixed to the substrate 4 by the foot 53.
Inside the storage hole 8e, an air chamber 12 is formed between the top portion of the resin cover 52 and the ceiling portion 11, and air is contained therein. Since the inside of the air chamber 12 is covered and sealed with the epoxy resin 30 as described above, seawater does not enter and the internal pressure does not increase.
The light emitted from the light emitting chip 51 is refracted when it exits the resin cover 52 and enters the air layer. However, since the resin cover 52 has a dome shape, the irradiation direction after refraction is directed substantially forward. become. For this reason, since all of the emitted light amount of LED5 faces front and does not diffuse, it can irradiate underwater brightly.

Since the underwater illuminating body 1 itself has water pressure resistance and impact resistance because of the above configuration, the underwater illuminating device A does not particularly have a structure for protecting the underwater illuminating body 1.
Moreover, since the underwater illumination body 1 has sufficient light irradiation capability, fish collection in the sea is optimal.

(Underwater lighting device B of the second embodiment)
FIG. 8 is a perspective view of the underwater illumination device B according to the second embodiment of the present invention. 9 is a cross-sectional view of the underwater illumination device B of FIG.
The outer rigid frame 8 in the present embodiment includes a plurality of vertical bars 81 and a plurality of fixing flanges 82 for fixing the vertical bars 81. The vertical bars 81 are arranged in the circumferential direction, and a plurality of flanges 82 are attached at an appropriate interval. With this structure, the outer rigid frame 8 is a strength member that supports the structure of the underwater illumination device B.

  The mounting frame 9 is composed of a resin double pipe. This double pipe is composed of a resin-made outer pipe 91 having transparency and rigidity, such as polycarbonate, and a resin-made inner pipe 92, and a space between the two pipes 91, 92 is a hollow portion. .

The underwater illumination body in this embodiment includes a substrate 4 and LEDs 5 as shown in FIG. Two rows of LEDs 5 are attached to one substrate 4, but the number of LEDs 5 per row is arbitrary, and the greater the number, the higher the illuminance.
The double pipe, that is, the space between the outer pipe 91 and the inner pipe 92 is hollow, and the LED 5 attached to the substrate 4 is inserted therein. The upper and lower ends of the outer pipe 91 and the inner pipe 92 are sealed with a suitable resin. For this reason, since the outer pipe 91 and the inner pipe 92 are watertight, the LED 5 is not short-circuited or damaged during operation.

The underwater lighting device B of this embodiment is a small device for human operation. Therefore, the diameter of the equal-diameter cylindrical portion is preferably as small as 100 to 150 mm, and the length is easily handled as 300 to 600 mm.
Moreover, since the bottom end of the inner pipe 92 is open, seawater falls off when it is lifted, so that it is light in weight and easy to handle even with human power.

(How to use the underwater lighting device)
Next, the advantages of the underwater illumination device A of the present invention will be described with reference to FIG.
The underwater lighting device A is suspended from a ship S such as a fish boat. The depth of water suspended in the sea varies depending on the type of fish to be caught, but the underwater lighting device A of the present invention has high pressure resistance and water resistance, so that it is possible to collect fish even at a depth of 200 m.
And when light is irradiated, since the light quantity of LED5 is bright and each underwater illumination body 1 bundles and illuminates light toward the front, it can make the underwater sufficiently bright. Moreover, in the underwater illumination device A, since the underwater illumination body 1 is attached slightly downward from the side surface, the light is irradiated obliquely downward from the side surface as shown in FIG. Therefore, since no light is irradiated above the area where fish do not gather, power is not wasted. Further, since the LED does not generate heat, the underwater temperature in the irradiation area does not rise higher than usual, so that the fish is not stressed. For this reason, the fish comes close to the underwater illumination device A.
This phenomenon is surprising even for fishermen who have been fishing with metal halide lights for many years, and because of the concentration of fish, fishing work is extremely easy, and it is possible to achieve many fishing effects with little effort It has become.

  Further, since the outer rigid frame 6 is outside the mounting frame 7 to which the underwater illumination body 1 is attached, the underwater illumination apparatus A will not be damaged by hitting the hull during fishing that is lifted from the sea or lowered into the sea. Moreover, since it is a cylindrical shape with no bottom as a whole and the water pressure acts and balances from the inside and outside, damage due to the water pressure hardly occurs. In addition, since the bottom end is open, seawater does not fall out during lifting, and the lifting weight does not increase.

It is the perspective view seen from diagonally upward of the underwater lighting apparatus A which concerns on 1st Embodiment of this invention. It is the perspective view seen from the underwater lighting apparatus A of FIG. It is a top view of the underwater illumination apparatus A of FIG. (A) is a side view showing the mounting structure of the mounting frame and the underwater illumination body, and (B) is a front view of the same. It is sectional drawing of the underwater illumination body 1 used with the underwater illumination apparatus A. It is principal part sectional drawing of the underwater illumination body 1 of FIG. It is a perspective view of the underwater illumination body 1 of FIG. It is a perspective view of the underwater lighting apparatus B which concerns on 2nd Embodiment of this invention. It is a cross-sectional view of the underwater illumination device B of FIG. It is explanatory drawing in the case of utilizing the underwater lighting apparatus A of this invention as a fishing light. It is use condition explanatory drawing of the conventional metal halide lamp fish-collecting lamp.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Underwater illumination body 2 Outer cover 3 Storage case 4 Board | substrate 5 LED
6,8 Outer rigid frame 7,9 Mounting frame

Claims (5)

A substantially cylindrical outer rigid frame;
A mounting frame provided inside the outer rigid frame;
An underwater illumination device comprising: a plurality of underwater illumination bodies having a blue LED as a light source attached to the attachment frame and emitting light through the outer rigid frame. The outer rigid frame is provided with an equal-diameter cylindrical portion having the same outer diameter and a lower portion of the equal-diameter cylindrical portion, the outer diameter decreasing toward the lower end and opening at the bottom end. It consists of a cylinder part,
The underwater illumination device according to claim 1, wherein the underwater illumination body is attached via the attachment frame inside the equal-diameter tubular portion and the tapered tubular portion. The underwater illuminator has a plurality of blue LEDs arranged in a matrix and stored in a storage case, the storage case is stored in an outer cover, a synthetic resin is applied and filled, and the storage case is sealed. The underwater illumination device according to claim 2. The substantially cylindrical outer rigid frame is composed of only an equal-diameter cylindrical portion, and a plurality of bars extending in the longitudinal direction of the equal-diameter cylindrical portion, and the plurality of bars are spaced apart in the circumferential direction. Consists of a fixed flange to hold,
The mounting frame is composed of a transparent resin double pipe,
The underwater illumination device according to claim 1, wherein the underwater illumination body is placed in a hollow portion of the double pipe. The mounting frame has an underwater lighting body placed in the hollow part of the double pipe, and both ends are sealed with resin,
5. The underwater illumination device according to claim 4, wherein the underwater illumination body has a blue LED attached to a substrate.

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