JP2005302484A - Luminaire and lighting system using it - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a luminaire having an excellent waterproof property and an excellent heat radiation property and easy to replace as an LED illumination unit, and also to provide a lighting system without causing light irregularity in the longitudinal direction, wherein the luminaires are continuously installed. <P>SOLUTION: This luminaire is provided with: a board 3 with LEDs 1 projected on the front surface and with a radiator 2 projected on the back surface; and a transparent and nearly box-shaped cover case 5 with the back surface formed as an opening 4. The luminaire is so structured that the board 3 is stored in the cover case 5, a transparent filling material 7 is injected and filled and the filling material 7 is solidified with the radiator 2 projected backward from the filling material 7, whereby the board 3 is fixed and integrated to/with the cover case 5 to form an LED illumination unit A; the LED illumination unit A is housed in one-side recessed part S1 of an H-like shape of an outer shell body 13 of the luminaire formed of a cross-sectionally nearly H-shaped material made of a heat conducting material; and the radiator 2 projected backward is jointed and fixed to a middle piece part 18 of the H-like shape of the luminaire outer shell body 13. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a lighting fixture in which an LED lighting unit is coupled and fixed to an outer shell of a lighting fixture, and a lighting device in which the lighting fixture is continuously provided in the longitudinal direction.

  Conventionally, as shown in FIG. 8, a lighting fixture is known in which a substrate 3 having an LED 1 projecting on its surface is bonded and fixed to a lighting fixture outer shell 13 (Patent Document 1: Japanese Patent Laid-Open No. 2003-92022). See the official gazette). In this case, the luminaire outer shell 13 is made of a substantially H-shaped cross section made of a heat conducting and conducting material such as aluminum, and is composed of a side piece 17 and a middle piece 18 that is bridged in the middle. The substrate 3 is coupled and fixed to the middle piece 18 by mounting screws 34. And the board | substrate 3 is accommodated in the H-shaped one recessed part S1 of the lighting fixture outer shell 13, and the transparent cover 35 is attached to the opening between the edge parts of the both side pieces 17 in the same recessed part S1. Has been blocked. In addition, in the H-shaped other recess S2 of the luminaire outer shell 13, a T-shaped ridge 36 is integrally projected from the middle piece 18, and a lighting circuit is provided on the lower surface of the T-shaped ridge 36. The part 37 is fixed.

Therefore, in the luminaire, when the plurality of LEDs 1 projecting from the surface of the substrate 3 are lit, the light is irradiated through the cover 35 and good illumination is obtained. The heat generated by the lighting of the LED 1 is conducted to the luminaire outer shell 13 through the substrate 3 to be dissipated, and the LED 1 can be kept at a low temperature, extending its life and providing good illumination over a long period. It is said that you can get. Moreover, in this case, the middle piece 18 of the luminaire outer shell 13 is formed thick, and a T-shaped projection 36 is integrally formed on the middle piece 18 so that the heat dissipation function can be sufficiently exerted. It is what is done.
JP 2003-92022 A

  However, in the above conventional lighting fixture, although the substrate 3 having the LED 1 is housed in the H-shaped one recess S1 of the lighting fixture outer shell 13 closed by the cover 35, the cover 35 is provided. The waterproof performance is not sufficient only by mounting the device, and it causes a problem when used for outdoor lighting or the like exposed to wind and rain. Therefore, it is also conceivable to inject and fill a transparent filler into the H-shaped one recess S1 of the luminaire outer shell 13 and to embed and seal the substrate 3 having the LED 1 in the filler. However, in this case, the cover 35 is attached after the filling material is injected and filled, bubbles are likely to be generated and remain between the cover 35 and the filling material, and the appearance and lighting function are impaired. The problem that would occur is a new problem.

  Moreover, since the conventional lighting fixture is such that the substrate 3 having the LED 1 is directly coupled and fixed to the lighting fixture outer shell 13 and the cover 35 is mounted on the surface side thereof, the substrate 3 can be replaced. It is difficult to use only this substrate 3 for other lighting fixtures. In particular, as described above, in order to improve waterproofness, a transparent filler is injected and filled in the H-shaped one recess S1 of the luminaire outer shell 13, and the substrate 3 having the LED 1 in the filler is provided. When embedded and sealed, the substrate 3 cannot be replaced with the luminaire outer shell 13.

  The present invention has been invented in view of the above-described conventional technology, and its problem is that it is excellent in waterproofness and heat dissipation, and can be easily replaced as an LED lighting unit, and a longitudinal direction in which the lighting fixtures are continuously provided. And an illumination device that does not cause light unevenness.

  In order to solve the above-described problems, a lighting fixture according to the present invention includes a substrate having an LED projecting on the surface and a heat radiator projecting on the back surface, and a transparent, substantially box-shaped cover formed on the back surface as an opening. A case, and a substrate and a cover by containing the substrate in the cover case and injecting and filling a transparent filler, and curing the filler in a state in which the heat radiator protrudes from the filler to the back. The case is fixedly integrated with the case to form an LED lighting unit, and the LED lighting unit is accommodated in an H-shaped one recess of the outer shell of the lighting fixture made of a substantially H-shaped material made of a heat transfer material. A heat radiating body protruding backward is joined and fixed to an H-shaped middle piece of the outer shell of the instrument.

  Further, in the lighting device of the present invention, the cover case of the LED lighting unit is formed in a substantially rectangular box shape so as to be fitted and accommodated in the one recess in the entire length in the longitudinal direction of the luminaire outer shell. A corresponding substrate is formed in a rectangular shape, and a plurality of LEDs are arranged in a projecting manner in the longitudinal direction on the surface of the substrate, and the illuminating device thus formed is continuously provided in the longitudinal direction. The distance between the LEDs in the longitudinal direction is substantially matched with the distance between the LEDs located at the extreme ends of the adjacent LED lighting units.

  The lighting apparatus of the present invention includes a substrate having an LED projecting on the surface and a transparent and substantially box-shaped cover case formed as an opening on the back, and accommodates the substrate in the cover case and is transparent By injecting and filling various fillers and curing the filler, the substrate and the cover case are fixed and integrated to form an LED lighting unit. In this LED lighting unit, the LED is placed in the cover case together with the substrate. It is embedded and sealed in the filler, ensuring sufficient waterproofness. Further, in this case, bubbles due to the filler are unlikely to be generated between the cover case and the substrate, and when the LED is turned on, the light can be irradiated through the transparent filler and the cover case to obtain good illumination. .

  In addition, a radiator is provided on the back of the board, and this radiator projects from the filler to the back, so that the heat generated by the lighting of the LED is transferred to the outside through the board by the radiator. The heat is dissipated without hindrance and sufficient heat dissipation is ensured, the LED can be kept at a low temperature, and the lifetime can be extended and good illumination can be obtained over a long period of time. As described above, since the LED lighting unit is integrally formed as an independent LED lighting unit, the LED lighting unit can be attached to or detached from the outer shell of the lighting fixture, and the replacement is facilitated. It is also possible to share lighting equipment. And the heat | fever generate | occur | produced by lighting of LED is conducted to a lighting fixture outer shell body through a board | substrate and a heat radiator, and is thermally radiated, and more sufficient heat dissipation is ensured.

  Further, in the lighting device of the present invention, the cover case of the LED lighting unit is formed in a substantially rectangular box shape, and is fitted and accommodated in one of the recesses over substantially the entire length of the luminaire outer shell in the longitudinal direction. Light is evenly irradiated by a plurality of LEDs arranged in a projecting manner in the longitudinal direction. And since the lighting fixtures thus formed are continuously provided in the longitudinal direction, a lighting device having a good appearance can be easily obtained as a line illumination having a desired overall length by appropriately setting the number of the same lighting fixtures. Can be obtained. Moreover, in this case, since the distance in the longitudinal direction of each LED of the LED lighting unit and the distance between the LEDs located at the extreme ends of both adjacent LED lighting units are substantially matched, Each LED including the continuous seam portion is disposed at substantially equal intervals in the longitudinal direction, and the light and darkness in the continuous seam portion is eliminated, thereby preventing uneven light as line illumination.

  1-6 has shown the lighting fixture B which is one Embodiment corresponding to all the claims 1-4 of this invention, and an illuminating device using the same. As shown in FIGS. 1 to 3, the lighting fixture B of this embodiment includes a substrate 3 in which an LED 1 protrudes on the surface and a radiator 2 protrudes on the back surface, and a transparent surface in which the back surface is formed as an opening 4. And a substantially box-shaped cover case 5, in which the substrate 3 is accommodated in the cover case 5 and a transparent filler 7 is injected and filled, and the radiator 2 projects from the filler 7 to the back. By curing the filler 7, the substrate 3 and the cover case 5 are fixed and integrated to form the LED lighting unit A, and the lighting fixture outer shell 13 made of a heat conducting and conducting material made of a substantially H-shaped cross section. The LED lighting unit A is accommodated in an H-shaped one recess S1, and the radiator 2 protruding to the back is joined and fixed to the H-shaped middle piece 18 of the outer shell 13 of the lighting fixture. Is.

  Moreover, in the lighting fixture B of this embodiment, the cover case 5 of the LED lighting unit A is formed in a substantially rectangular box shape so that the lighting fixture outer shell 13 fits and is accommodated in the one recess S1 in substantially the entire length in the longitudinal direction. The substrate 3 is formed in a rectangular shape so as to correspond to the cover case 5, and a plurality of LEDs 1 are arranged on the surface of the substrate 3 so as to protrude in the longitudinal direction. In this case, the positions of the opening between the end edges of the both side pieces 17 in the H-shaped one recess S1 of the luminaire outer shell 13 and the surface wall 6 of the cover case 5 are substantially matched. Further, in the lighting device of this embodiment, as shown in FIG. 2 (a), the lighting fixtures B are connected in the longitudinal direction, and both the LED illuminations adjacent to the distance L1 in the longitudinal direction of each LED 1 of the LED lighting unit A. The distance L2 between the LEDs 1 located at the extreme end of the unit A is substantially matched.

  Hereinafter, the lighting fixture B of this embodiment and a lighting device using the same will be described in more detail. As shown in FIG. 4, in the LED lighting unit A in this embodiment, the cover case 5 is a substantially rectangular box shape in which the back surface is a substantially U-shaped cross-section with the opening 4 and both ends in the longitudinal direction are closed. It is integrally formed with a transparent acrylic resin. The cover case 5 may be made of a synthetic resin such as polycarbonate having transparency, glass, or the like in addition to the acrylic resin. Further, in this case, the cover case 5 has a substantially U-shaped cross section with the surface wall portion 6 and both side surface wall portions 8 provided on both sides thereof, and the entire back surface is opened in a rectangular shape as the opening portion 4. Is formed. A plurality of protrusions 10 are integrally projected at intervals in the longitudinal direction at the inner corner portion between the surface wall portion 6 and both side wall portions 8 of the cover case 5.

  The substrate 3 is made of a belt-like metal plate having a high thermal conductivity such as aluminum, and is formed in a rectangular shape slightly smaller than the opening 4 of the cover case 5. The LEDs 1 are arranged in two rows on the front surface of the substrate 3, and the heat radiating body 2 made of a metal having high thermal conductivity such as aluminum protrudes from the rear surface. The heat radiating body 2 is formed in a substantially T-shaped cross section, and the horizontal piece 2a is thin and the vertical piece 2b is thicker than the horizontal piece 2a. The entire surface of the horizontal piece 2a of the radiator 2 is tightly bonded to the back surface of the substrate 3 over a wide area. In this state, the radiator 3 is attached to the substrate 3 by a coupling screw 15 inserted and screwed from the front side of the substrate 3. 2 is united and integrated. Further, the back end surface 11 of the vertical piece 2b of the heat dissipating body 2 is formed to be wide as a flat surface, and a mounting screw hole for attaching to the lighting fixture outer shell 13 described later on the back end surface 11 A plurality of holes 12 are formed in the longitudinal direction.

  Then, the substrate 3 is accommodated in the cover case 5 through the opening 4, and then the filler 7 is filled in the cover case 5, and the filler 7 is cured, whereby the substrate 3 and the cover case are filled. 5 is fixed and integrated. At that time, both side edge portions of the substrate 3 are placed and supported on the protrusions 10 of the cover case 5, and a space is provided between the surface wall portion 6 of the cover case 5 and the substrate 3. It is also connected between LED1 and the same surface wall part 6. FIG. In this supported state, a gap of dimension a is secured between the surface wall 6 of the cover case 5 and the LED 1, and the back end surface 11 of the radiator 2 protrudes from the opening 4 of the cover case 5 by dimension b. Thus, the opening 4 is left open on both sides of the dorsal end surface 11 with a width of c dimension.

  Here, the a dimension is set to 1 mm or more, preferably about 1.5 mm, the b dimension is larger than 0 mm (it should be protruding), preferably about 1 mm, and the c dimension is preferably 3 mm or more. Is set to about 5 mm. Moreover, the filler 7 is injected and filled on both side portions of the horizontal piece 2a of the radiator 2 and both side edges of the substrate 3, so that the radiator 2 and the substrate 3 are pressed and supported on the protrusion 10. Then, it is securely supported at a predetermined position in the cover case 5, and the filler 7 is hardened and firmly fixed and integrated.

  In this case, as shown in FIGS. 5 and 6, the c-size openings 4 remaining on both sides of the back end face 11 of the radiator 2 are opened over the longitudinal direction of the cover case 5, and the openings 4 from the remaining openings 4 are opened. The filler 7 is injected and filled evenly along the longitudinal direction by the nozzle 16. At this time, since the substrate 3 is formed slightly smaller than the opening 4 of the cover case 5, a gap is formed between both side edges of the substrate 3 and the inner wall surfaces of the side wall portions 8 of the cover case 5. Through this gap, the filler 7 is injected and filled into the space. At that time, a plurality of cutout portions 9 are intermittently formed along the longitudinal direction on both side edges of the substrate 3, and the filler 7 smoothly and evenly passes through the cutout portions 9. The manufacturing time for filling and filling the filling material 7 is shortened, leading to cost reduction.

  Further, in this case, the LED 1 and the surface wall portion 6 of the cover case 5 are separated by the dimension a, so that the filler 7 can easily wrap around the gap between them, and air does not remain in the gap. Good illumination will be obtained. That is, when the LED 1 and the surface wall portion 6 of the cover case 5 are in contact with each other, the filler 7 is difficult to go around in a slight gap between the two, and air remains in the slight gap. Is hardened at a high temperature, the air remaining at the high temperature expands and hardens to form a bubble. This bubble impairs the appearance and makes it impossible to obtain good illumination. And the surface wall portion 6 of the cover case 5 are separated from each other.

  In addition, when the bubbles are generated, if moisture remains in the bubbles, depending on the heat change caused by turning off and blinking of the LED 1, condensation may occur and the insulation of the LED 1 may be impaired. Unfortunately, as described above, the LED 1 and the surface wall portion 6 of the cover case 5 are separated from each other, and the quality is improved. Further, since the back end surface 11 of the radiator 2 protrudes from the opening 4 of the cover case 5 by the dimension b, the filler 7 hardly adheres to the back end surface 11. The fixing material 7 does not enter into the drilled screw hole 12, and the luminaire outer shell 13 to be described later is brought into close contact with the dorsal end face 11 and is screwed into the screw hole 12. It is fixed by 14 without any trouble. In addition, the filler 7 is a transparent silicon resin and has high thermal conductivity, so that the filler 7 can efficiently dissipate heat.

  1 to 3 show a lighting fixture B to which the LED lighting unit A is attached and a lighting device in which the lighting device B is connected. In this case, as shown in FIG. 1, the luminaire outer shell 13 is made of a substantially H-shaped material having a high thermal conductivity such as aluminum, and is composed of a side piece 17 and a middle piece 18 bridged in the middle. It is configured. The LED lighting unit A is housed in an H-shaped one recess S1 of the lighting fixture outer shell 13, and the radiator 2 is joined to the H-shaped middle piece 18 of the lighting fixture outer shell 13. It is fixed. At that time, the rear end face 11 of the radiator 2 is tightly joined to the middle piece 18 of the lighting fixture outer shell 13 and penetrates the middle piece 18 from the other H-shaped recess S2 of the lighting fixture outer shell 13. Then, they are coupled and fixed by a fixing screw 14 inserted and screwed into the screw hole 12 of the dorsal end surface 11. Note that the substantially H-shaped cross-section material that becomes the luminaire outer shell 13 has a thin cross-section with a cross-sectional outer dimension of less than 30 mm × 30 mm, and here is 27 mm × 27 mm. Handling and usability are improved.

  Further, in this case, an AC power source 19 for lighting the LED 1 is accommodated and fixed in the other H-shaped recess S2 of the outer shell 13 of the lighting fixture. It may be fixedly attached to the piece 18. As described above, when the AC power source 19 is housed and fixed, it is not necessary to provide a separate DC power source, so that the cost of electrical work can be reduced. In addition, the cover case 5 of the LED lighting unit A is formed in a substantially rectangular box shape so as to be accommodated and accommodated in the one recess S1 over the substantially entire length of the luminaire outer shell 13 in the longitudinal direction. Correspondingly, the substrate 3 is formed in a rectangular shape, and a plurality of LEDs 1 are arranged on the surface of the substrate 3 so as to protrude in the longitudinal direction. In this case, the position of the opening between both ends 17 of the H-shaped one recess S1 of the luminaire outer shell 13 and the surface wall 6 of the cover case 5 are substantially matched, and the surface wall 6 Are accommodated in the same recess S1 substantially flush with the opening between the edges.

  As shown in FIGS. 2 and 3, a plurality of the luminaires B are connected in the longitudinal direction to form an illuminating device, and this illuminating device is waterproof and used as indirect illumination, line illumination installed on the wall surface of a building, and the like. It can also be installed outdoors. In this case, as shown in FIG. 2A, the distance L1 in the longitudinal direction of each LED 1 of the LED lighting unit A and the distance L2 between the LEDs 1 positioned at the extreme ends of both adjacent LED lighting units A are substantially matched. In the entire apparatus, the intervals between the LEDs 1 are substantially equal in the longitudinal direction. As shown in FIG. 3, in each lighting fixture B, when the LED lighting unit A is housed in the H-shaped one recess S1 of the lighting fixture outer shell 13, both end portions of the LED lighting unit A in the longitudinal direction are accommodated. A concave step 20 is disposed between the H-shaped middle piece 18 of the outer shell 13 of the same lighting fixture, and each concave step 20 has a substantially semicircular shape at the edge of the middle piece 18. A cut-out half hole 21 is formed.

  As shown in FIGS. 2 and 3, when each lighting fixture B is connected to the installation surface 22 in a continuous manner, it is attached via an attachment base 23 that is fixedly attached to the installation surface 22. In this case, the mounting base 23 is made of a heat conducting and conducting material with a substantially U-shaped cross section that opens to the front, and a substantially circular mounting portion 24 that protrudes and bends backward is formed on the bottom plate portion. A mounting screw 25 is passed through the mounting portion 24 and fixed to the installation surface 22. The mounting base 23 is formed to have substantially the same length as that of the lighting fixture B, and is connected to each other via a connector 26. The connection tool 26 is a substantially hat-shaped metal fitting, and both side protruding pieces are fixed to the bottom plate portions of the adjacent mounting bases 23 with screws 27, and a screw hole for coupling is formed on the top piece of the connection tool 26. 28 is drilled. Here, a gap is formed between the bottom plate portion of the mounting base 23 and the installation surface 22 due to the presence of the mounting portion 24 protruding to the back, and the heat dissipation action is promoted and improved by air flowing through the gap. The

  Further, in the connector 26, the ends of the lighting fixture B are also connected and fixed. Here, the other H-shaped recess S2 of the outer shell 13 of the lighting fixture is fitted to the outside of the mounting base 23 and the connecting tool 26, and the mounting base 23 and the connecting tool 26 are housed in a good manner. The instrument B is positioned and connected so that the ends thereof are linearly continuous without deviation. Then, the substantially semicircular cut-out half holes 21 of the concave step portion 20 are abutted with each other, and the connection screw 31 inserted through the circular hole formed by the both cut-out half holes 21 is a screw hole for coupling of the coupler 26 By being screwed to 28, the ends of the lighting fixture B are connected and fixed.

  In this case, as shown in FIG. 3, a fixing washer 29 is placed between the adjacent concave stepped portions 20 in an erected shape, and a connection screw 31 is inserted into the through hole 30 formed in the fixing washer 29. It is preferable to insert and screw. That is, when the connection screw 31 is directly inserted into the circular hole formed by the two cutout half holes 21, the head of the screw is easily detached from the circular hole, but the fixing washer 29 and the top piece of the connector 26 are By connecting and fixing so that the edge portion of the middle piece 18 of the lighting fixture outer shell 13 is clamped in a wide range, the end portions of the lighting fixture B can be stably and reliably connected to each other. it can. In addition, a fixing washer 29 is formed in a rectangular shape that fits the shape of the adjacent two concave stepped portions 20 when viewed from the front, and this fixing washer 29 is fitted into the two concave stepped portions 20 to perform an alignment operation. It also makes.

  In addition, as shown in FIG. 2, in the lighting fixture B arrange | positioned at the extreme end (left end in FIG. 2) of the longitudinal direction of an illuminating device, it replaces with the said connection tool 26, and the fixing tool 32 for ends is used. The end fixture 32 and the connection screw 31 join and fix the end of the lighting fixture B to the mounting base 23. The open end of the luminaire outer shell 13 of the luminaire B is closed by fitting the end cap 33.

  Therefore, in the LED lighting unit A of the lighting fixture of this embodiment, the substrate 3 is accommodated in the cover case 5 from the opening 4 and a space is provided between the substrate 3 and the surface wall portion 6 of the cover case 5. In this state, the substrate 3 is supported, a transparent filler 7 is injected and filled into the cover case 5 from the opening 4 to the space, and the filler 7 is cured, whereby the substrate 3 and the cover case 5 are fixed. Since they are fixed and integrated, the LED 1 together with the substrate 3 is embedded and sealed in the filler 7 in the cover case 5 to ensure sufficient waterproofness. Further, in this case, since the bubbles due to the filler 7 are unlikely to be generated between the inner wall surface mainly including the surface wall portion 6 of the cover case 5 and the substrate 3, when the LED 1 is turned on, the light is transparent and Good illumination can be obtained by irradiation through the cover case 5 without any trouble.

  In addition, in the LED lighting unit A, the heat radiating body 2 is protruded from the back surface of the substrate 3, and the heat radiating body 2 protrudes from the filler 7 to the back. The heat is radiated to the outside by the heat radiating body 2 through the substrate 3 without hindrance so that sufficient heat dissipation is ensured, the LED 1 can be kept at a low temperature, and the lifetime is extended to obtain good illumination over a long period. be able to. Thus, since the LED lighting unit A is integrated as an independent unit, the LED lighting unit A can be attached to or detached from the outer shell 13 of the lighting fixture, and replacement thereof is possible. It becomes easy and can also be shared for different types of lighting fixtures.

  In the LED lighting unit A, the cover case 5 is formed in a long, substantially rectangular box shape, the opening 4 is formed in a rectangular shape, and the substrate 3 is formed in a rectangular shape slightly smaller than the rectangular shape. A plurality of LEDs 1 are projected in a longitudinal direction on the surface of the substrate 3, and the filler 7 is passed through the gap between the side edges of the substrate 3 and the inner wall surfaces of the side wall portions 8 of the cover case 5. Even in the case of a long LED lighting unit A, the filler 7 is evenly injected and filled evenly in the longitudinal direction, and light is evenly irradiated by the plurality of LEDs 1 in the longitudinal direction. Will be. Further, in this case, a plurality of notches 9 for passing the filler 7 are formed intermittently along the longitudinal direction on both side edges of the substrate 3, so that the plurality of notches are not only from the gap. The filling material 7 is smoothly and evenly injected and filled into the space through the shape portion 9, and the generation of bubbles is more reliably prevented, and the manufacturing time for injecting and filling the filling material 7 can be shortened. Leads to cost reduction.

  Further, in the LED lighting unit A, a plurality of protrusions 10 are arranged on the inner wall surface of the cover case 5 at intervals, and the space is provided between the LED 1 and the surface wall portion 6 of the cover case 5. Since the substrate 3 is supported by the protrusions 10 in the provided state, the same space is secured and the filler 7 is filled without any trouble through the intervals of the protrusions 10. In this case, the protrusions 10 are also made of a transparent resin and are integrally formed with the cover case 5, so that the light from the LED 1 is transmitted through the protrusions 10 without any trouble and does not affect the appearance.

  Further, in the LED lighting unit A, the mounting screw hole 12 is provided on the back end surface 11 of the heat radiating body 2 protruding from the filler 7 to the back. It can be screwed in and can be easily and securely coupled and fixed to the luminaire outer shell 13. Moreover, in this case, since the back end face 11 of the radiator 2 protrudes from the opening 4 on the back side of the cover case 5, when the filler 7 is injected and filled, the filler 7 is screwed into the screw hole. 12, the middle piece 18 of the luminaire outer shell 13 is tightly joined to the back end surface 11, and is joined and fixed without any trouble by the fixing screw 14 screwed into the screw hole 12. .

  Moreover, in the lighting fixture B of this embodiment, the said LED lighting unit A is couple | bonded and fixed to the lighting fixture outer shell 13 which consists of a heat transfer / conductivity material, In this case, the back of the heat radiator 2 The end face 11 is tightly joined to the middle piece 18 of the lighting fixture outer shell 13 having a substantially H-shaped cross section, and is fixedly coupled by a fixing screw 14 screwed into a screw hole 12 provided in the dorsal end face 11. Therefore, the LED illumination unit A can be easily replaced by attaching and detaching the fixing screw 14. In addition, in this case, the heat generated by the lighting of the LED 1 is conducted to the luminaire outer shell 13 through the substrate 3 and the radiator 2 to be dissipated, so that more sufficient heat dissipation is ensured.

  Further, the LED lighting unit A is housed in an H-shaped one recess S1 of the luminaire outer shell 13, and in this case, in the substantially entire length of the luminaire outer shell 13 in the longitudinal direction. On the other hand, since the cover case 5 of the LED illumination unit A is formed in a substantially rectangular box shape so as to be accommodated in the recess S1, the LED illumination unit A is compact and fits for line illumination. At that time, the position of the opening between both edges 17 of the H-shaped one-side recess S1 of the luminaire outer shell 13 and the position of the surface wall portion 6 of the cover case 5 are substantially matched, so that the housing appearance The cover case 5 is reliably protected and its breakage is prevented.

  Moreover, in the illuminating device of this embodiment, since the said luminaire B is provided continuously in the longitudinal direction, the appearance is provided as a line illumination having a desired overall length by appropriately setting the number of the luminaire B continuously provided. A good lighting device can be obtained easily. In addition, in this case, the distance L1 in the longitudinal direction of each LED 1 of the LED lighting unit A and the distance L2 between the LEDs 1 positioned at the extreme ends of the two adjacent LED lighting units A are substantially matched, and therefore, they are continuously provided. In the plurality of lighting fixtures B, the LEDs 1 including the continuous seam portions are arranged at substantially equal intervals in the longitudinal direction, and there is no sense of incongruity of light and darkness in the continuous seam portions. Unevenness is prevented. And in the illuminating device of this embodiment, the luminaire B can be installed and constructed linearly, and it is waterproof even in a construction site that is exposed to vibration or wind and rain outdoors such as an outer wall surface of a building or a bridge. It can be safely installed and fixed in a state where the safety is ensured.

  FIG. 7 shows lighting fixtures B1 and B2 which are another embodiment corresponding to claims 1 to 3 of the present invention and a lighting device using the same. The lighting fixtures B1 and B2 of this embodiment are not continuously provided in the longitudinal direction, but both ends thereof are joined in the orthogonal direction so as to be substantially L-shaped. In this case, the distance L1 in the longitudinal direction of the LEDs 1 of the LED lighting units A1 and A2, the distance L3 in the width direction between the rows of the LEDs 1 of the LED lighting units A1 and A2, and the adjacent LED lighting units A1 and A2, The distance L4 in the bonding and abutting direction of the LED 1 located at the extreme end of A2 is substantially matched. Therefore, also in this case, in both luminaires B1 and B2 that are connected, the LEDs 1 including the connected seam portion are arranged at substantially equal intervals from each other. Unevenness of light as a long illuminating device with no sense of incongruity is prevented.

  Further, in this lighting device, a part of the side piece 17 on one side of the lighting device outer shell 13 is missing at the end portion of one lighting device B2, and the other lighting device B1 is located at the lacking portion. The open ends of the lamps are abutted and joined to each other, and the two lighting fixtures B1 and B2 are connected. In this case, a substantially semicircular cut-out half hole 21 is formed at the side edge of the middle piece 18 of the luminaire outer shell 13 in the absence of the one luminaire B2, and at the end of the other luminaire B1. A substantially semicircular cut-out half hole 21 is formed at the edge of the middle piece 18 of the luminaire outer shell 13, and the connection screw is inserted into a circular hole formed by abutting the cut-out half holes 21 with each other. By 31, the ends of both lighting fixtures B1 and B2 are connected and fixed in the orthogonal direction. In addition, about the other than that, it is comprised similarly to the lighting fixture B of the said embodiment, and the same effect as the said lighting fixture B is show | played.

Sectional drawing which shows the lighting fixture which is one Embodiment of this invention. The (a) which shows the illuminating device with which the same lighting fixture is connected is a front view, (b) is a side view. The disassembled perspective view which shows the same illuminating device. Sectional drawing which shows the LED lighting unit in the lighting fixture. The state before injecting and filling the filler of the LED lighting unit is shown in (a) is a rear view, and (b) is a front view. Sectional drawing which shows the state which injects and fills the filler of the LED lighting unit. The front view which shows the illuminating device using the lighting fixture which is another embodiment of this invention. Sectional drawing which shows the lighting fixture which is a prior art example.

Explanation of symbols

1 LED
2 Radiator 3 Substrate 4 Opening 5 Cover Case 6 Surface Wall 7 Filler
13 Light fixture outer shell
17 Side piece
18 Middle piece S1 One recess A LED lighting unit B Lighting equipment

Claims (4)

  An LED is projected on the front surface and a heat dissipation body is projected on the back surface, and a transparent and substantially box-shaped cover case with the back surface formed as an opening, and the substrate is accommodated in the cover case In addition, a transparent filler is injected and filled, and the filler is cured in a state in which the radiator projects from the filler to the back, so that the substrate and the cover case are fixed and integrated to form an LED lighting unit, The LED lighting unit is housed in an H-shaped recess of the outer shell of the lighting fixture made of a heat transfer material having a substantially H-shaped cross section, and the back of the H-shaped middle piece of the outer shell of the lighting fixture is housed in the back. A lighting fixture made by joining and fixing a radiator that protrudes toward the direction.   The cover case of the LED lighting unit is formed in a substantially rectangular box shape so as to fit and be accommodated in one recess in the entire length of the luminaire outer shell in the longitudinal direction, and the substrate is formed in a rectangular shape so as to correspond to the cover case. 2. The lighting apparatus according to claim 1, wherein a plurality of LEDs are arranged in a projecting manner on the surface of the lever substrate in the longitudinal direction.   The luminaire according to claim 2, wherein the positions of the opening between both end portions of the H-shaped one recess of the luminaire outer shell substantially coincide with the position of the surface wall portion of the cover case.   The lighting fixture according to claim 2 or 3 is continuously provided in the longitudinal direction, and the distance in the longitudinal direction of each LED of the LED lighting unit is substantially matched with the distance between the LEDs located at the extreme ends of both adjacent LED lighting units. A lighting device characterized by that.

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