JP6431266B2 - Lighting device - Google Patents

Description

    The present invention relates to a waterproof technology for lighting lamps, and in particular, the field of manufacturing and providing lighting lamps capable of maintaining a waterproof state even in a high humidity environment, as well as its transportation, storage, From the field of providing and selling equipment and equipment necessary for assembly and installation, materials necessary for these materials, machinery and parts, such as wood, stone, various fibers, plastics, various metal materials, etc. Fields to be provided, fields of electronic components incorporated in them and control-related equipments integrated with them, fields of various measuring instruments, fields of the equipment and power machines that move the instruments, electricity as energy and energy that is an energy source, Fields generally referred to as industrial machinery, such as the field of oil, as well as testing and researching these facilities and equipment, fields related to their display, sales, import and export, Results of their use, facilities for making them, fields related to the collection and transportation of garbage generated by the operation of equipment, etc., as well as recycling fields that efficiently reuse these garbage There are no new technical fields that cannot be envisaged, and there are no unrelated technical fields.

(Points of interest)
Lighting fixtures installed in a poor humidity environment such as in a cave do not only achieve sufficient lighting performance such as anti-glare measures, but also require reliable immersion performance. In recent years, they have been installed so far. The replacement of fluorescent lighting fixtures with more economical LED (Light Emitting Diode) lighting fixtures has progressed, and moisture-proof LED lighting for caves that does not cause discomfort or decrease in safety due to the replacement of old and new The provision of lamps is required.

(Conventional technology)
Reflecting this situation, proposals that can be used to overcome this situation are not unheard of.
For example, as typified by what is proposed in Patent Document 1 (1) below, the waterproof member has at least a part of the surface continuous with the upper surface of the translucent panel, and the cover is made transparent. It has a bottom surface that is continuous with the surface of the waterproof member that is continuous with the top surface of the optical panel, and a groove portion that is open at both ends is formed up to the outer edge of the instrument body, and the waterproof member that continues to the groove portion is spaced above it. Since the upper surface of the translucent panel is inclined so that water collected on the upper surface of the translucent panel is discharged outside the instrument body along the groove, the translucent panel Rain light accumulates on the panel surface, the rainwater pattern that appears on the irradiated surface, the rainwater evaporates due to the heat of the lamp, water vapor is generated and the light is obstructed, or the light transmission panel surface becomes dirty To prevent or rain on the translucent panel surface When the internal pressure of the main unit becomes negative from the outside when the lamp is turned on and off, the risk of the accumulated rainwater being sucked into the main unit and being flooded can be reduced. There is what I did.

    Further, as seen in Patent Document 1 (2), between the case and the ceiling surface, and between the case and the cover is closed with a single U-shaped packing, The shape of the contact area between the ceiling surface and the cover is formed based on the adhesion, and further, the corner of the case is shaped so that the bent packing does not wrinkle, and between the case and the ceiling surface, and the case. In some cases, the gap between the cover and the cover can be closed by a single packing, and therefore, the number of parts can be reduced, the adhesive surface can be reduced, and the airtightness can be improved. In the lighting device in which the light source unit is housed in a cylindrical globe having both ends opened as in (3) and each end edge of the globe is inserted into a closing member and closed, the edge of the globe and the closing portion A waterproof packing is provided between the materials, and the waterproof packing is formed between the first seal portion that is pressed and deformed by the edge of the globe and seals between the closing member, and the outer surface of the end portion of the globe and the closing member. It is possible to seal between the end edge of the glove and the outer side surface and the closing member so as to be integrally provided with a second seal portion that is sandwiched and sealed, and the outer side surface is waterproofed and water is submerged from the outer side surface. Even if it is a case, since it can be waterproofed at its edge, the sealing property between the globe and the closing member is improved, so that water can enter the lighting device from between the globe and the closing member. In some cases, it is possible to prevent and improve the waterproof performance of the lighting device.

However, the luminaire as shown in the former Patent Document 1 (1) has a glass panel fitted into a flat frame opening through a packing to ensure waterproofness. Is used to secure waterproofness by compressing in the thickness direction of the glass panel, and this waterproof structure can be used as it is for straight tube lamps such as LED lamps that can be replaced with fluorescent lamps. It becomes very difficult to perform, and like the lighting apparatus of Patent Document 1 (2), a packing having a U-shaped cross section is formed between the case and the ceiling surface (plane) and between the case and the cover. Also, it is extremely difficult to use the lamp as a straight tube lamp as it is, and the lighting device represented by Patent Document 1 (3) has a straight tube glove. Conventional fluorescent lighting equipment However, the waterproof packing seals between the globe end edge and the closing member, and the second seal seals between the globe end outer surface and the closing member. If the shape of each part of the sealing member and the waterproof packing to be attached to the groove and the processing accuracy are not sufficiently increased, the second seal of the waterproof packing against the groove is required. The outer diameter of the part increases, making it extremely difficult to assemble, and on the contrary, the outer diameter of the second seal part of the waterproof packing is reduced relative to the groove, making it difficult to obtain reliable waterproofing. There was a risk that the production cost would increase.
(1) Japanese Unexamined Patent Application Publication No. 2004-111284 (2) Japanese Unexamined Patent Application Publication No. 2007-273147 Japanese Unexamined Patent Application Publication No. 2013-51193

(Awareness of problems)
As described above, each of the various lighting devices that have been proposed so far is waterproofed by interposing a U-shaped packing between the flat members and compressing the packing in the thickness direction of the flat member. It is possible, and it is very difficult to use as it is for waterproofing of straight pipe type gloves and lighting covers, etc. Even if it has a straight tubular glove, it is attached to both ends However, it is difficult to reduce the production cost of lighting equipment with improved lighting performance and water-proofing performance. For example, it is difficult to reduce the production cost. It solves these unsolved problems and ensures lighting performance equivalent to or better than that of conventional fluorescent lamps. Economically installed, per configuration for enabling realizing a new lighting device of LED usage available, it has been led to keenly the possibility of further improvement.

(Object of invention)
Therefore, the present invention makes it possible to achieve high anti-soaking performance even in a poor humidity environment such as a cave, increase durability, reduce production cost, and economically install by adopting an LED light source. From the judgment that it is possible to develop a new lighting technology that can be used and that also has sufficient anti-glare measures, we started its development and research very quickly, and conducted trial and error over many years and numerous prototypes and experiments. As a result of repetition, this time, it has finally succeeded in realizing a lighting device having a novel structure, and in the following, the configuration will be described in detail together with an embodiment representing the present invention shown in the drawings. .

(Structure of the invention)
As can be clearly understood from the embodiments representing the present invention shown in the drawings, the illumination device of the present invention basically comprises the following configuration.
That is, in a cylindrical translucent pipe with both ends open, a light source is mounted with a line LED group on the surface of a flat base plate having a total length that fits between both ends of the translucent pipe, and an LED power supply on the back surface. A unit is accommodated, and at both ends of the light-transmitting pipe, an inner wall is formed of a pair of disk-shaped bodies having outer diameters larger than the annular end of the light-transmitting pipe, and faces the annular end of the light-transmitting pipe. the annular end of DoToruhikari pipe, an annular seal groove set with intervening annular packing is fittable inside and outside diameters and depth corresponding to the tip of the light transmitting pipe annular end engraved is Rutotomoni, the inner side of the circular annular seal groove inner diameter, can fit character shaped pieces supporting groove edge of the light source unit base plate, a substantially horizontal, be arranged on either one It is carved at an upper position that does not interfere with the formation of the harness connection plug. Rutotomoni, each character shaped lateral width direction center of the removed two positions respectively in the mounting holes are through, a pair of waterproof lid formed by bored, sandwich the annular packing in the annular sealing groove bottom, the same the edge of the base plate to the character-shaped piece support groove is inserted and enables heat transfer from the people ahead of the mounting hole husband, their corresponding mounting holes, a light source unit which is formed the base plate ends each pair of edges the screw holes, screwing the respective clamping screw, combined with tightened, the waterproof lid is pressed toward the corresponding end of each said light-transmitting pipes, each of the waterproof lid annular seal groove is each of those light transmitting pipe and connecting and pressed toward the opposite ends, on the annular packing is as in the form tightened through tightening mechanism mounted as a compression and sealingly, in their outside walls of each waterproof lid, respectively heat The mounting legs made of materials with excellent conductivity are integrated, and the mounting legs of each mounting leg are integrated. The focal grounding portion, the electrolytic corrosion preventing insulating film is an illumination device according to subject matter the configuration in which shall become fixed to the electrically insulated state is deposited.

    As described above, according to the illuminating device of the present invention, unlike the conventional ones, the above-described unique characteristic configuration achieves high water-proofing performance even in a poor humidity environment such as a cave. In addition to being able to increase durability and reduce production costs, it can be installed and used economically by adopting LED light sources, and even when replaced with conventional fluorescent light fixtures, power consumption is reduced. The lighting performance can be greatly reduced and the lighting performance equivalent to or higher can be achieved. In addition, the heat generated by the light source unit can be efficiently transferred from the base plate to each waterproof lid to quickly dissipate outside the translucent pipe. Therefore, it effectively prevents overheating of the LED power source and line LED group that are the heat source of the light source unit, prevents deterioration of each part, and prolongs the durability life significantly. Maintenance cost Reducing, in which Su features is obtained that it is possible to realize the more economical lighting technology.

    In addition, by installing a single support groove on the inner side of the inner diameter of the annular seal groove engraved on the inner side wall of each waterproof lid, each waterproof lid is attached to both ends of the translucent pipe. Since the edge of the light source unit base plate can be fitted and supported at a desired position in the pipe, the parts configuration can be simplified and the number of assembly steps can be greatly reduced to further increase production efficiency. In addition, the tightening mechanism is provided with one or a plurality of mounting holes penetrating from the outer wall of the waterproof lid to the inner wall piece supporting groove, and at the edge of the light source unit base plate corresponding to each mounting hole. It shall consist of one or a plurality of screw holes and one or a plurality of tightening screws that pass through the mounting holes from the outer wall of the waterproof lid and are screwed into the screw holes on the edge of the base plate. By simplifying the tightening mechanism, Advantage can be made achievable to further size and weight of the device is obtained.

    And the line LED group mounted on the surface of the base plate extends in the entire length dimension direction of the base plate, the width dimension direction both ends of the base plate support the base end, and the upward tip is close to each other in an eight-character section. By mounting it along each outward tip wall of a pair of thermally conductive angle plates inclined in a shape, the irradiation angle of the line LED group is set to a wider angle and a wider range is illuminated. In addition to being able to make it possible, each angle plate supporting the line LED group efficiently dissipates heat, and heat is transferred to the base plate, effectively cooling each line LED group, It is possible to more reliably prevent deterioration of the LED due to overheating, and the translucent pipe is made of a transparent or translucent synthetic resin mixed with a light diffusing material, thereby greatly reducing glare. Safer and more effective Effect that it is possible to realize the illumination also has shall exhibit.

    Furthermore, the outer wall of each waterproof lid is integrated with a heat conductive mounting leg, and an electric corrosion prevention insulating film is attached to the grounding grounding portion of each mounting leg. Even when the mounting legs are installed directly on the wall of a sinus wall, etc., it is possible to reliably prevent electrolysis caused by energization and prevent the occurrence of corrosion, thereby greatly extending the durability life. It will be.

In implementing the present invention having the above-described configuration, the best or desirable mode will be described.
The translucent pipe has the function of allowing the light source unit to be translucent and sealable so that it can be sealed even in a poor high-humidity environment such as a cave, and an annular packing is attached to each of both annular ends. It should be interposed and sealed with a waterproof lid, and it should be able to realize sufficient anti-glare measures. At least the transmission range necessary for illumination, or the entire area should be transparent. It must have light properties, and it should not have translucency in areas where it is not irradiated with illumination light such as a back surface, or a reflective film or a reflective plate is provided on its inner wall. It can be made of colored or colorless, transparent or translucent glass or synthetic resin, etc., and has various cross-sectional shapes such as polygonal cross-sectional shape, curved cross-sectional shape, or a cross-sectional shape consisting of a combination thereof Can be When it is intended to replace the lighting fixtures with light lamps, as shown in the examples described later, it is preferable to use a cylindrical shape, and calcium carbonate, barium sulfate, other materials, etc. It is desirable to use a transparent or translucent synthetic resin in which at least one of various light diffusing materials effective for light diffusion such as a light diffusing pigment as a main component is mixed.

    The light source unit is fixedly housed in the light-transmitting pipe, emits light through the light-transmitting pipe, and has a function that can achieve a sufficient illumination function, and can be accommodated in the light-transmitting pipe. Line LED groups are mounted on the front surface, and LED power supplies are mounted on the back surface, and the base plate must be set to a total length that fits between both ends of the translucent pipe. As shown in Fig. 4, the both ends of the base plate can be fixedly supported by fitting into the one-side support grooves carved on the inside of the waterproof lid, and the heat generated by the LED power source and line LED group Is made of a metal that can be efficiently transmitted to both waterproof lids, such as an aluminum alloy, copper alloy, stainless steel, or a material having a thermal conductivity equal to or higher than such metals. Is good, support of line LED group The line LED group mounted on the surface of the base plate extends in the overall dimension direction of the base plate so that the angle can be appropriately set and the heat from the LED power source does not adversely affect the line LED group. The base plate is mounted along the outward tip walls of a pair of thermally conductive angle plates that support the base end of the base plate in the width direction and are inclined in an octagonal cross section so that the upward tips are close to each other. The line LED group can be fixedly supported in a predetermined angle posture levitated from the surface of the base plate, and further, the base plate, the angle plate, the LED substrate of the line LED group, the lens holder, etc. A light reflecting film, a light reflecting layer, a light reflecting sheet, a light reflecting plate, or the like can be appropriately provided on the wall surface.

    The angle plate can be fixedly supported in a posture in which the line LED group is levitated to a predetermined angle posture with respect to the surface of the base plate, and also radiates heat generated by the line LED group and efficiently transfers heat to the base plate. It shall have a function to enable, and the mounting position and mounting posture of the line LED group on the surface of the base plate shall be able to be accurately fixed to a desired state, and shall be removable by screw connection or the like Desirably, like the base plate, it should be made of a material excellent in thermal conductivity, and between the base end fixed to the surface of the base plate and the outward tip wall on which the line LED group is mounted, A support angle adjusting mechanism that can adjust the opening angle of each other can be provided.

    The line LED group has a function of arranging a plurality of chip LEDs along the entire length direction of the light-transmitting pipe and enabling a substantially uniform illumination in the arrangement direction. A plurality of chip LEDs are arranged in the light-transmitting pipe. In addition to the cannonball type, the chip LED includes a surface mount type (SMD: Surface Mount Device), a chip-on-board (Chip On Board) and the like that will be developed in the future. Various types can be adopted, and as shown in the examples described later, an LED substrate in which a plurality of chip LEDs are arranged along the center bottom of a lens holder having a rail-like shape with a concave cross section. A light distribution control lens in which a plurality of lens portions are integrated so as to correspond to each chip LED is mounted between both ends of the lens holder concave sectional shape. And shall, it can be made provided with a respective line LED group along the outward front end wall of the pair of thermally conductive angle plate is tilted to the cross section eight characters form.

    The LED power supply has a function that enables each chip LED of each line LED group accommodated in the light-transmitting pipe to be supplied with power suitable for illumination, and external power is supplied to each chip LED of each line LED group. Supply or charge part or all of the power from the outside and supply to each chip LED of each line LED group, or receive only the pre-charged power without receiving external power for each chip LED of each line LED group As shown in the examples to be described later, the back surface of the base plate is placed at an appropriate position opposite to the surface on which the line LED group of the base plate is mounted. It should be installed.

    The waterproof lid seals both ends of the light-transmitting pipe in a hermetically sealed state, and bears the function of enabling both ends of the light source unit to be fixedly supported in a desired posture, and has an outer shape that exceeds the annular end of the light-transmitting pipe, On the inner wall of the waterproof lid, an annular seal groove is set so that the annular end of the light-transmitting pipe has an annular packing corresponding to the tip of the annular end of the light-transmitting pipe and the inner diameter and depth can be fitted. In addition, a single support groove that can be fitted to the edge of the light source unit base plate is engraved inside the inner diameter of the annular seal groove, and heat transmitted from the edge of the light source unit base plate Is preferably made of a material excellent in thermal efficiency to such an extent that it can be efficiently transmitted to the outside. For example, a metal such as an aluminum alloy, a copper alloy, or stainless steel, or equivalent to or more than such a metal. Thermal conductivity of It is preferable that the waterproof lids are integrated with heat-conductive mounting legs on the outer wall of each waterproof lid, and the grounding grounding part of each mounting leg is covered with an insulating film for preventing electric corrosion. It can be worn.

    The insulating film for preventing electric corrosion applied to the grounding part of the mounting leg has the function of making it sufficiently durable and electrically insulative, and has an electrically insulating synthetic resin coating, paint, synthetic Rubber, natural rubber, other insulating covers and caps, fitting parts and the like can be used.

    The annular seal groove has an annular packing on the inner side wall of the waterproof lid, and has a function that allows the annular end of the light-transmitting pipe to be hermetically fitted. An annular groove whose inner and outer diameters when the annular packing corresponding to the annular end is overlapped with the tip of the end and the depth of the end of the light-transmitting pipe annular end including the annular packing is set to a depth including the flange is formed. When the annular end of the light-transmitting pipe and the waterproof lid are tightened and attached via a tightening mechanism, an annular packing is sandwiched between the bottom of the annular seal groove and the annular end of the light-transmitting pipe, and compression and sealing are performed. It should be waterproof as a shape.

    The annular packing is in close contact with the bottom of the annular seal groove on the inner wall of the waterproof lid, is sandwiched between the bottom of the annular seal groove and the annular end of the light-transmitting pipe, is compressed and is in close contact, and bears the function of making water impermeable, Must be made of a waterproof elastic material such as soft synthetic resin, silicone rubber, synthetic rubber, natural rubber, etc., and has a quality that does not lose its waterproofness and elasticity even when exposed to high humidity for a long period of time Should be adopted.

    The one-side support groove is an inner wall of the waterproof lid, and has a function of allowing one end edge of the light source unit base plate to be cantilevered and fitted inside the inner diameter of the annular seal groove. Arranged inside the groove inner diameter, it must be provided in a waterproof environment, fitted with a pair of waterproof lid piece support grooves so as to sandwich both end edges of the base plate, and can stably support both ends It should be of a shape that can secure a joining state that can efficiently transfer heat from the base plate to the waterproof lid, and should it match the shape of the support target edge of the base plate? Alternatively, the support target edge should be in the form of a groove that can be stably supported in a cantilevered manner, and the support target edge of the light source unit base plate is flat as shown in the examples described later. If it is, it can be set as the groove shape of a single character.

The tightening mechanism has an annular packing at each end of the translucent pipe, a pair of waterproof lids are attached, and both ends of the translucent pipe are sandwiched between the inner walls of each waterproof lid, and each annular packing is compressed and sealed. In addition to providing a water-proofing function, it also has a function that enables the light source unit to be stably supported between the inner walls of each waterproof lid. Each waterproof lid is pressed against both ends of the light-transmitting pipe with sufficient pressure, and the pressed state can be maintained. A vise type that allows a pair of waterproof lids arranged at both ends of a light-transmitting pipe to be tightened so as to approach each other, and flanges at appropriate locations on the outer periphery of each pair of waterproof lids A bolted nut can be tightened between the two, and the bolt can be seen from one end of the light-transmitting pipe, penetrated vertically to ensure water resistance without interfering with the light source unit, and protruded from the other end. Bolt A nut can be screwed onto the end and sealed and integrated so that the waterproof lids at both ends can be tightened together, and each waterproof lid can be screwed to one or more appropriate places on the light-transmitting pipe. Buckles, belts, springs, hooks, locking metal fittings, and other tightenable structures can be used. To reduce the size and weight, as shown in the examples below, the outer side of the waterproof lid One or a plurality of mounting holes penetrating from the wall to the inner side wall piece support groove, one or a plurality of screw holes drilled in the edge of the light source unit base plate corresponding to each mounting hole, and the waterproofing It is preferable to include one or a plurality of tightening screws that pass through the attachment holes from the lid outer wall and are screwed into the screw holes on the edge of the base plate.
In the following, the structure of the present invention will be described in detail together with an embodiment representative of the present invention shown in the drawings.

The drawings show some typical embodiments embodying the technical idea of the lighting device of the present invention.
It is a bottom view which shows an illuminating device. It is the front view and left-right side view which show an illuminating device. It is a top view which shows an illuminating device. It is a bottom view which shows the illuminating device except a harness. It is sectional drawing which shows the AA line part in FIG. It is a side view which shows a light source unit. It is sectional drawing which shows a light source unit. It is the front view and side view which show line LED group. It is sectional drawing which shows a line LED group. It is a front view which shows the principal part of an illuminating device. It is a front view which shows the illuminating device decomposed | disassembled. It is a front view which shows the fastening mechanism in the dashed-two dotted line circle B in FIG. It is a three-view figure which shows one waterproof lid. It is a trihedral view showing the other waterproof lid. It is the front view and side view which show an annular packing. It is the front view and side view which show a translucent pipe. It is the front view and bottom view which show a base board.

    In the example shown in FIG. 17 without FIG. 1, the annular seal grooves 52, 52 are formed on the inner side walls 50. 50 of the pair of plate-like bodies 5, 5 at both ends 20, 20 of the translucent pipe 2 containing the light source unit 3. In addition, the waterproof lids 5 and 5 each provided with one-side support grooves 53 and 53 are arranged on the inner side of the inner diameters of the annular seal grooves 52 and 52, and the annular packings 6 and 6 are provided at the inner bottom portions of the annular seal grooves 52 and 52. 6 is sandwiched, the annular ends 20 and 20 of the light-transmitting pipe 2 are fitted, and the end edges 33 and 33 of the light source unit 3 base plate 30 are inserted into the piece support grooves 53 and 53, respectively. The lids 5 and 5 are respectively pressed against the opposite ends 20 and 20 of the light-transmitting pipe 2 and are fastened in a tightening manner via a tightening mechanism 7 that compresses and seals the annular packings 6 and 6. The typical example in the illuminating device of this invention is shown.

    As can be clearly understood from these drawings, the illumination device 1 of the present invention is made of a translucent synthetic resin mixed with a light diffusing material, and is a cylindrical light-transmitting pipe having both ends 20 and 20 opened. 2, and the line LED group 4 on the surface 31 of the flat plate-like and heat-conductive base plate 30 having a full length dimension that fits between both ends 20, 20 of the light transmissive pipe 2. The light source unit 3 on which the LED power supply 44 is mounted is housed on the back surface 32. The light source unit 3 includes a rail having a concave cross section as shown in FIGS. A LED substrate 40 on which a plurality of chip LEDs 41, 41,... Are arranged is mounted along the center bottom of the lens holder 42, and each chip LED 41 is disposed between both ends of the concave shape of the lens holder 42. It corresponds to 41, ... It is assumed that a light distribution control lens 43 in which a plurality of lens parts are integrated is mounted, and the line LED groups 4 and 4 are extended in the full length dimension direction of the base plate 30 to thereby measure the width dimension of the base plate 30. Both ends in the direction support the base ends 35, 35 respectively, and the outward leading end walls 37 of the pair of thermally conductive angle plates 34, 34 inclined in an octagonal cross section so that the upward leading ends 36, 36 are close to each other, 37 is mounted.

    As shown in FIG. 1 to FIG. 5 and FIG. 10 to FIG. 17, a pair of heats having outer diameters larger than the annular ends 20 and 20 of the light transmissive pipe 2 are respectively provided at both ends 20 and 20 of the light transmissive pipe 2. It consists of conductive (for example, aluminum) and disc-like bodies 5, 5, and the inner wall 50 facing the annular ends 20, 20 of the light-transmitting pipe 2 is connected to the annular ends 20, 20 of the light-transmitting pipe 2. The inner and outer diameters of the light-transmitting pipe 2 can be fitted by interposing an annular / rectangular cross-section packing 6 made of an elastic material such as silicone resin corresponding to the tip of the annular ends 20, 20. In addition, the annular seal groove 52 set to the depth is engraved, and the light source unit 3 is located at a position inside the inner diameter of the annular seal groove 52 and outside the center of the annular seal groove 52. One-letter-shaped single support groove 5 into which the edge 33 of the base plate 30 can be fitted A pair of waterproof lids 5, 5 engraved substantially horizontally, and annular packings 6, 6 are sandwiched between the inner bottom portions of the annular sealing grooves 52, 52. 30 end edges 33, 33 are combined so that heat can be transferred.

    The tightening mechanism 7 passes through the mounting holes 70, so as to penetrate through the outer walls 51, 51 of the respective waterproof lids 5, 5 through the two portions of the inner side walls 50, 50, which are removed from the center of the one-letter piece support grooves 53, 53. 70, and a pair of screw holes 71, 71 and outer walls of the waterproof lids 5, 5 are formed at the edges 33, 33 of the light source unit 3 base plate 30 corresponding to the mounting holes 70, 70, respectively. 51, 51 passes through the mounting holes 70, 70 and is screwed into the screw holes 71, 71 of the base plate 30 edge 33. 33, and each of the waterproof lids 5, 5 has two fastening screws 72, 72. ,... Are tightened, the respective fastening screws 72, 72,... Are tightened, the respective waterproof lids 5, 5 are pressed toward both ends 20, 20 of the light-transmitting pipe 2, and the respective annular packings 6. It is supposed to be mounted so as to be compressed and sealed.

A plug 56 for connecting a harness 55 is provided at the center of one waterproof lid 5 outer wall 51, and screw holes 54, 54 are provided on the outer walls 51, 51 of the respective waterproof lids 5, 5 at three locations that are appropriately balanced. ,... Are drilled, and L-shaped cross-sectional metal plate mounting legs 8, 8 are coupled by mounting screws 81, 81,. The insulating films 82 and 82 made of synthetic resin having electrical insulation properties are attached, and the mounting legs 8 and 8 and the grounded ground portions 80 and 80 are not in direct electrical contact with other objects. Thus, when the lighting device 1 is installed on a sinusoidal wall (not shown) or the like, the translucent pipe 2 and the waterproof lids 5 and 5 are not directly in contact with other objects such as the sinusoidal wall. Screws for installation through the ground-like grounding portions 80, 80 of the legs 8, 8 via the electric corrosion preventing insulating films 82, 82 3,83, there as being fixed ...... at such electrically insulated state.

(Operation / Effect of Example 1)
As shown in FIGS. 1 to 17, the lighting device 1 of the present invention having the above-described configuration is such that the line LED groups 4 and 4 are mounted on the light source unit 3, so that it is installed in the cave. Compared with conventional lighting equipment using fluorescent lamps, energy savings of 25% or more can be achieved, life span can be extended by more than 5 times, humidity is high throughout the year, and it can be submerged in the rainy season Even in such an environment, the water tightness in the translucent pipe can be maintained, and stable illumination can be realized. The light source unit 3 base plate 30 is made of aluminum fitted to both end edges 33, 33. The waterproof lids 5 and 5 and the metal plate mounting legs 8 and 8 coupled to the outer walls 51 and 51 of the waterproof lids 5 and 5 respectively serve as heat sinks, enabling more efficient heat dissipation, Overheating of the light source unit 3 In addition, each of the mounting legs 8 and 8 and the ground-like grounding portions 80 and 80 are electrically connected to other screws such as installation screws 83, 83,. It is possible to prevent the contact due to electrical corrosion and to prevent deterioration due to electrolytic corrosion.

(Conclusion)
As described above, the lighting device of the present invention can achieve the intended purpose evenly by its new configuration, and is easy to manufacture and consumes compared to the conventional fluorescent lamp type lighting technology. The power consumption can be greatly reduced, the durability life can be extended significantly, the weight and cost can be reduced, and the production efficiency and maintenance efficiency can be further improved. In addition to the facility management industry, which wants to maintain and manage lighting in poor humidity environments such as caves as economically as possible, the installation of economical lighting equipment and aging old lighting equipment are highly reliable. It is also highly regarded in the construction industry and the maintenance industry for building facilities that are replaced with new lighting fixtures, and is expected to be widely used and spread.

1 Lighting device 2 Translucent pipe
20 Same ring end (both ends)
3 Light source unit
30 Same base plate
31 Same surface
32 Same side
33 Same edge
34 Same angle plate
35 Same base
36 Same tip
37 Same outward tip wall 4 line LED group
40 Same LED board
41 Same chip LED
42 Same lens holder
43 Same light distribution control lens
44 Same LED power supply 5 Waterproof lid (plate)
50 Same inner wall
51 Same outer wall
52 Ring seal groove
53 Same piece support groove
54 Same screw hole
55 Same harness
56 Same plug 6 Ring packing 7 Tightening mechanism
70 Same mounting hole
71 Same screw hole
72 Tightening screw 8 Mounting leg
80 Same grounding part
81 Same mounting screw
82 Insulation film for preventing electric corrosion
83 Same installation screw

Claims (3)

Inside the cylindrical translucent pipe with both ends open, there is a light source unit with a line LED group mounted on the surface of the flat base plate having a total length that fits between both ends of the translucent pipe, and an LED power source mounted on the back surface. The both ends of the light-transmitting pipe are made of a pair of disk-shaped bodies having outer diameters exceeding the annular end of the light-transmitting pipe, respectively, on the inner wall facing the annular end of the light-transmitting pipe, The annular end of the light-transmitting pipe is engraved with an annular seal groove set to an inner and outer diameter and depth that can be fitted with an annular packing corresponding to the tip of the light-transmitting pipe annular end. In addition, inside the inner diameter of the annular seal groove, a single-letter-shaped piece support groove that can be fitted with the edge of the light source unit base plate is substantially horizontal and is arranged in either one. If it is engraved at an upper position that does not hinder the formation of the harness connection plug In addition, a pair of excellent water-conducting waterproof lids, each of which has a mounting hole penetrated and drilled at two locations off the center in the left-right width direction of each character, is the bottom part of the annular seal groove. The base of the light source unit is formed in such a manner that the annular packing is sandwiched between and inserted into the same character-shaped one-side support groove so that the edge of the base plate can transfer heat, and the mounting holes are respectively corresponding to the mounting holes. A total of four fastening screws, which are independent for each end of the light-transmitting pipe , are screwed together into a total of four non- through-type blind hole-like screw holes in each pair of the plate end edges, Each waterproof lid is pressed toward the corresponding end of the translucent pipe, each waterproof lid annular seal groove is fitted and pressed toward both ends of the translucent pipe, and each annular packing is compressed and sealed. so as to be a closure system comprising a stand-alone to each of the two ends of the light transmitting pipe In addition, the mounting legs made of materials having excellent thermal conductivity are integrated with the outer walls of the respective waterproof lids, and the grounding grounding portion of each mounting leg is electrically connected. An anti-corrosion insulating film is deposited and fixed in an electrically insulating state, and the fastening mechanism, the light-transmitting pipe, and the flat base plate of the light source unit are made independent at both ends of the light-transmitting pipe, respectively. And a combination of a pair of waterproof lids synergistically simplify the coupling structure of each other, and can be reduced in size and weight .     The line LED group mounted on the surface of the base plate extends in the entire length dimension direction of the base plate, both ends in the width dimension direction of the base plate support the base end, and the upward leading ends are in an eight-character cross section The lighting device according to claim 1, wherein the lighting device is mounted along each outward tip wall of a pair of inclined heat conductive angle plates.     The lighting device according to claim 1, wherein the light-transmitting pipe is made of a transparent or translucent synthetic resin mixed with a light diffusing material.

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