JP2006134593A - Underwater illumination body and underwater illuminator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an underwater illuminator that increases brightness by converging light in water, increases a fish-luring effect by applying light in a wide range in water, and can fully withstand a use even in an environment where an underwater depth is increased and high pressure is applied. <P>SOLUTION: The underwater illuminator comprises a number of LEDs 5 mounted on a substrate 4 and a storage case 3 for storing a number of LEDs 5. In the storage case 3, a number of storage holes 8 are formed in the same direction from the back of a block body, and a ceiling 11 and a sidewall 9 are allowed to remain. Each storage holes 8 has an inner diameter that is the same as or is slightly larger than diameters of the LEDs 5 to be stored, and an air chamber 12 is formed at an area to the ceiling 11 when the LEDs 5 are inserted. While the storage case 3 is arranged in a saucer-shaped outer cover 2 and a number of the LEDs 5 held on the substrate are inserted into each storage hole 8 of the storage case 3, an epoxy resin 30 is filled between the outer periphery of the storage case 3 and the substrate 4, and the inner periphery of the outer cover 2. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an underwater illumination body and an underwater illumination device. More specifically, the present invention relates to an underwater illumination body that can be used for collecting fish and other uses in water and in the sea, and an underwater illumination device using the same.

  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. As a result, it began to replace power-efficient halogen lamps in the latter half of the 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. Furthermore, in 1980, metal halide lamps with even greater light power became the mainstream and have reached today.

FIG. 10 shows a fish method using a metal halide lamp as a fish lamp. 100 is a metal halide lamp suspended from a fish boat in the sea (see FIG. A). Since the spherical body 101 is made of glass, the metal halide lamp 100 has a structure in which the outer surface is surrounded and protected by a metal frame 101 so as not to be damaged (see FIG. B).
During fisheries, as shown in Fig. (A), use it in the sea up to a depth of about 200m. At this time, the underwater fish gathered from the dark part where the light did not reach (the spot of the symbol b) approached the part brightened by the light (the spot of the symbol a) and gathered at a radius R of about 50 m. Keep away from the inside. This is said to be due to the fact that the metal halide lamp 100 generates a large amount of heat in addition to light, and the sea temperature rises. Therefore, the catching effect is not as great as expected for the bright light range.

Incidentally, LEDs (light emitting diodes) are known as light emitters that can reduce the amount of heat generation, and underwater illumination devices using LEDs also exist.
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, an object of the present invention is to provide an underwater illumination lamp that can converge light in water and increase brightness. It is another object of the present invention to provide an underwater illumination device that increases the fish collection effect by irradiating light in a wide range.
It is another object of the present invention to provide an underwater lighting device that can withstand use even in an environment where the depth of water is deep and high pressure is applied.

The underwater illumination body of the first invention includes a large number of LEDs and a storage case for storing the large number of LEDs, and the storage case has a plurality of storage holes perforated from the back surface of the block body to form a ceiling portion and a side wall. Each housing hole has an inner diameter that is almost the same as or slightly larger than the diameter of the LED to be accommodated, and an air chamber is formed between the top surface when the LED is inserted. It is characterized by being.
The underwater lighting body according to a second aspect of the present invention is characterized in that, in the first aspect, the LED has a resin cover formed in a dome shape at the tip.
An underwater lighting body according to a third aspect is the first aspect according to the first aspect, wherein the LEDs are supported by a substrate, and a large number of LEDs fixed on the substrate are fitted in the respective storage holes of the storage case. It is characterized by being.
The underwater lighting body according to a fourth aspect of the present invention is the underwater lighting body according to the third aspect of the present invention, wherein a dish-shaped outer cover is used, the storage case is disposed in the outer cover, and the substrate is held in each storage hole of the storage case. A synthetic resin is filled between the outer circumference of the storage case and the substrate and the inner circumference of the outer cover in a state where a large number of LEDs are inserted.
The underwater lighting device according to a fifth aspect of the present invention uses two of the underwater lighting bodies, both of which are integrated with the light emitting surface on the outside and the non-light emitting surface on the mating surface to form an underwater lighting device. A combination of the above is characterized in that the light emitting surfaces are oriented in four directions or more.
The underwater illumination device according to a sixth aspect of the invention is characterized in that a plurality of the underwater illumination bodies are used and attached to the outer peripheral surface of the cylindrical polyhedral frame with the light emitting surface facing outward.

According to the first invention, when a large number of LEDs are inserted into a large number of storage holes of the storage case, the LEDs can be fixed in the same direction, so that the light emitted by the LEDs can be bundled in the same direction. In addition, when the LED is stored in the storage case, an air chamber is formed between the top surface of the LED and the ceiling portion of the storage case in the storage hole. The diffusion of light that occurs when the light is emitted does not occur, and the emitted light can be concentrated and irradiated in the same direction, so that the illuminance is increased.
According to the second invention, the light emitted from the LED is refracted so as to be directed forward in the irradiation direction at the interface between the dome-shaped resin cover and the air layer, so that the emitted light is concentrated in the same direction and bright illuminance even in water. Can be secured.
According to the third aspect of the invention, a large number of LEDs are fixed on the substrate and are disposed at positions where they are fitted in the respective housing holes, so that they can be handled as a unit and can be easily assembled.
According to the fourth invention, the LED is put in the storage case to give pressure resistance, and the electrical components including the board are sealed in the outer cover with the synthetic resin filled in the outer periphery of the storage case and the board. Can be used even in places where the water pressure is very deep.
According to the fifth invention, since the underwater illumination bodies are coupled back to back, light can be emitted outwardly and symmetrically, and two or more underwater illumination bodies emitting light symmetrically outwardly are combined. Or it can be done by irradiating light in all directions.
According to the sixth aspect of the invention, since the plurality of underwater illumination bodies are attached to the outer surface of the cylindrical polyhedron, the irradiation direction is multidirectional, and if the number of polyhedrons is large, the entire circumferential direction can be irradiated evenly.

Next, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a cross-sectional view of an underwater illumination body according to an embodiment of the present invention. FIG. 2 is an enlarged cross-sectional view of a main part of the underwater illumination body of FIG. FIG. 3 is an external perspective view of the underwater illumination body. FIG. 4 is an exploded perspective view of the underwater illumination body. FIG. 5 is an exploded sectional view of the underwater illumination body. FIG. 6 is a plan view of the underwater illumination body.

The underwater illumination device A of the present invention is configured with a plurality of underwater illumination bodies 1. First, the configuration of the underwater illumination body 1 will be described.
FIG. 3 is a perspective view of the underwater illumination body 1 as viewed obliquely from above, in which an outer cover 2 and a storage case 3 (shown by dotted lines) are shown. The underwater illumination body 1 is shown in FIG. As described above, it is mainly composed of three members. In other words, in addition to the outer cover 2 and the storage case 3, the LED mounting substrate 6 includes a large number of LEDs 5 fixed to the substrate 4.

The above three members will be described with reference to FIGS.
First, the details of the LED mounting substrate 6 will be described. 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 holes of a copper circuit 4C (see FIG. 2) provided on the substrate 4 and connected to each other, and are connected to the conductive cord 7.

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 are perforated from the back surface of the storage case 3 toward the ceiling portion 11. The perforation positions of the storage holes 8 are the same as the vertical and horizontal arrangement positions of the LEDs 5 on the LED mounting substrate 6, and the number of the storage holes 8 is the same as the number of the LEDs 5. Therefore, the accommodation holes 8 are also formed in a matrix.
The inner diameter of the storage hole 8 is the same as or slightly larger than the outer diameter of the LED 5, and a side wall 9 is formed between the adjacent storage holes 8, 8.
The depth h of the storage hole 8 is larger than the height of the LED 5 but smaller than the height H of the block. As a result, a ceiling portion 11 is formed on the upper surface of each storage hole 8.

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 flange portion 21 with an appropriate partition member 23.
The storage case 3 is adapted to fit into a recess 24 defined by a partition member 23.

  When assembling the underwater illumination body 1, as shown in FIG. 1, the LEDs 5 of the LED mounting substrate 6 are combined so as to be fitted in the storage holes 8 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. 1, each LED 5 is double protected by a storage case 3 and an 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 the state which contacted the side wall 9 in each storage hole 8 in the storage case 3, all the LED5 will be surely faced ahead. Then, as shown in FIG. 6, when all of the LEDs 5 arranged in a matrix are all directed forward, the light emitted from each LED 5 is directed only forward, and the light is illuminated brightly even in a dark place such as the deep sea. Will be able to.

As shown in FIG. 2, in the 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 8, 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.

Next, an underwater illumination device A using the underwater illumination body 1 will be described.
FIG. 7 is an external view of an underwater illumination device according to an embodiment of the present invention. FIG. 8 is an explanatory view of an underwater illumination device according to another embodiment of the present invention. FIG. 9 is an explanatory diagram when the underwater illumination device of the present invention is used as a fish collection lamp.

(One Embodiment of Underwater Lighting Device)
In FIG. 7, 61 is a frame of the underwater lighting device A, 62 is a rope suspended from a fish boat, and 63 is a weight. In this embodiment, the underwater lighting fixtures a1 to a4 are provided in four stages up and down. Each stage of the underwater lighting fixture a is formed by combining two underwater lighting bodies 1 and 1.
That is, the underwater illuminator a uses two underwater illuminators 1, both of which are integrally coupled with the front surface, that is, the light-emitting side facing outside, and the back surface, that is, the non-light-emitting side, facing each other. The coupling means is arbitrary, and means such as bolting using the flange 22 of the outer cover 2 may be used.
If the underwater lighting fixture a combining two such underwater lighting bodies 1 illuminates, for example, the uppermost stage a1 to the left and right, and the second stage a2 before and after, the four directions can be irradiated in the sea. . In the example shown in the figure, the third stage a3 is illuminated left and right, and the fourth stage a4 is illuminated front and back. However, if the 45 ° irradiation angle is changed with respect to the upper two stages a1 and a2, Direct illumination is possible, and the surroundings can be illuminated more evenly.

(Another embodiment of the underwater lighting device)
In FIG. 8, reference numeral 71 denotes a frame of the underwater illumination device A. The frame 71 is a dodecahedron-shaped cylindrical member, and a suspension ring 72 is coupled to the upper portion, and a mounting plate 73 is attached to a part of the bottom surface.
A plurality of underwater illumination bodies 1 are attached to the outer surface of this cylindrical frame 71 with the light emitting surface facing outward. The number of attached underwater illumination bodies 1 is three in the upper and lower directions in the drawing, but is not limited thereto, and may be two or less or four or more. 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.
Furthermore, if the underwater illumination body 1 is also attached to the bottom surface of the frame 71, light can be irradiated downward. Therefore, when the underwater lighting device A is moved up and down from the ship or pulled up, the lower part can be illuminated and the fish collection effect can be enhanced.

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 LED is bright and each underwater illumination body bundles and illuminates light toward the front, it can make the underwater sufficiently bright. In addition, 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, and therefore the fish approaches 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.

It is sectional drawing of the underwater illumination body which concerns on one Embodiment of this invention. It is a principal part expanded sectional view of the underwater illumination body of FIG. It is an external appearance perspective view of an underwater illumination body. It is a disassembled perspective view of an underwater illumination body. It is an exploded sectional view of an underwater lighting body. It is a top view of an underwater illumination body. 1 is an external view of an underwater illumination device according to an embodiment of the present invention. It is explanatory drawing of the underwater illumination apparatus which concerns on other embodiment of this invention, (A) A figure is the perspective view seen from the top, (B) The figure is a perspective view seen from the bottom. It is explanatory drawing in the case of utilizing the underwater illumination device of this invention as a fish collection lamp. (A) The figure is a use state explanatory drawing of the conventional metal halide lamp type fish collection lamp, (B) is a perspective view of a metal halide lamp.

Explanation of symbols

1 Underwater Illuminator 2 Outer Cover 3 Storage Case 4 Substrate 5 LED
6 LED mounting substrate 8 Storage hole 9 Side wall 11 Ceiling 12 Air chamber 51 Light emitting chip 52 Resin cover

Claims (6)

It consists of a large number of LEDs and a storage case for accommodating the large number of LEDs,
The storage case has a large number of storage holes perforated from the back side of the block body, leaving the ceiling and side walls, and each storage hole has an inner diameter that is substantially the same as or slightly larger than the diameter of the LED to be stored. And an air chamber is formed between the top surface and the LED when the LED is inserted. The underwater illumination body according to claim 1, wherein the LED has a resin cover formed in a dome shape at a tip portion. 2. The underwater according to claim 1, wherein the LEDs are supported by a substrate, and the plurality of LEDs fixed on the substrate are arranged so as to be fitted into the storage holes of the storage case. Lighting body. Use a dish-shaped outer cover,
In the outer cover, the storage case is arranged, and a large number of LEDs held on the substrate are inserted into the storage holes of the storage case.
The underwater illumination body according to claim 3, wherein synthetic resin is filled between an outer periphery of the storage case and the substrate and an inner periphery of the outer cover. Two underwater lighting bodies are used, both of which have a light emitting surface outside and are integrated with a non-light emitting surface as a mating surface to constitute an underwater lighting fixture,
An underwater lighting device, wherein two or more of the underwater lighting fixtures are combined so that the light emitting surfaces face in four or more directions. An underwater illumination device comprising a plurality of the underwater illumination bodies and attached to an outer peripheral surface of a cylindrical polyhedral frame with a light emitting surface facing outward.

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