JP2018137037A - Mounting structure of LED lighting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a mounting structure of an LED illumination device capable of irradiating uniform light with a simple structure. An LED lighting device 1 is installed in a door panel 49 of an automobile. Light can be extracted from the top panel opening of the LED lighting device 1 toward the inner surface of the vehicle interior from the door panel 49. In addition, light can be extracted from the side opening of the LED lighting device 1 toward the lower side of the door panel 49. The top surface opening and the side surface opening are covered with the interior fabric 51 of the door panel 49. For this reason, in the state which turned off the LED lighting apparatus 1, the shape of the top surface opening cannot be visually recognized. On the other hand, when the LED lighting device 1 is turned on, characters and the like corresponding to the shape of the top surface opening 11 appear on the inner surface of the door panel 49. For this reason, it can utilize as illumination for decoration of a car. At the same time, light is emitted from the side opening, and the foot under the door can be illuminated. [Selection] Figure 14

Description

  The present invention relates to a mounting structure for an LED lighting device using an LED light source.

  Because of energy saving and long life, LED (Light Emitting Diode) illumination has become widespread, and many illuminations using LEDs have been proposed.

  For example, as a lighting device for product display, a lighting device, particularly a shelf, which is small and light, can improve the light utilization efficiency using a single light source, and can emit illumination light in two different directions. There exists an illuminating device suitable when attached to a board (patent document 1).

  In the illumination device of Patent Document 1, light can be directly extracted in the direction of the normal line of the light source. In addition, in the direction intersecting with the normal line of the light source, a sawtooth-shaped orientation surface having a light reflecting function is formed of a first inclined surface and a second inclined surface, and a cover member for taking out light at a wide angle is attached thereto. It has been. In addition, an orientation surface having a light reflecting function for reflecting light and spreading light at a wide angle is formed on the outer surface of the frame.

  Further, there is a vehicle interior lighting device with a small and simple configuration that can perform illumination with two types of light with different irradiation ranges (Patent Document 2).

  The illumination device of Patent Document 2 includes a movable light source unit whose position can be changed between a first state and a second state, and a light diffusion member provided at a position where light from the light source unit in the first state is irradiated. When the light source unit is in the first state, the light emitted from the light source unit irradiates the diffusion member and then irradiates the light outside, and a wide range of illumination light is obtained. In addition, when the light source unit is in the second state, the illumination device is in a condensing mode and emits spot-like illumination light. For this reason, when the light source unit is in the first state, a wider range of illumination light can be obtained than when the light source unit is in the spot-like illumination in the second state. Also, two types of illumination light having different irradiation ranges can be generated by changing the irradiation position (light extraction position) of the light source, and the illumination device can be reduced in size and simplified by reducing the number of light sources.

  In addition, there is an LED lighting device that can irradiate light obliquely to the main irradiation direction with the auxiliary reflector and irradiate with sufficient light in the main irradiation direction blocked by the auxiliary reflector (Patent Document 3). .

  In the illumination device of Patent Document 3, light emitted from a light source accommodated in an LED lighting apparatus is irradiated in the main irradiation direction by the main reflection plate, and part of the light is emitted by the auxiliary reflection plate provided inside the main reflection plate. Reflected obliquely to the main irradiation direction. And since the opening part which permeate | transmits the light from a light source to a main irradiation direction was provided in the auxiliary reflector, light can be fully irradiated also to a main irradiation direction.

  Moreover, there exists an illuminating device which guides the light of a different light source to an upper surface and a side surface direction (patent document 4). This lighting device divides the light guide space into two parts to avoid light interference.

  In addition, a single-piece lamp provided on the base, a globe covering the lamp attached to the base, and a rotary slit provided on the outer peripheral surface of the side portion of the globe, and partly having a slit for lighting. There is a garden light equipped with a cylindrical cover (Patent Document 5). This garden light extracts light in two orthogonal directions without having a movable mechanism in the light source.

  Patent Document 6 discloses a door handle device in which two light guide plates made of a transparent acrylic resin material are arranged in parallel in a thickness direction with a predetermined interval and a predetermined pattern is engraved on the back surface of each light guide plate. A decorative lighting device to be attached is disclosed.

  Patent Document 7 describes a vehicular illumination that can uniformly irradiate a wide area that is optimum according to the open / closed state of a vehicle door. In Patent Document 7, two light source units are switched and used in accordance with the open / closed state of the door.

JP 2014-056787 A Japanese Patent Laid-Open No. 2005-082085 JP 2013-182697 A JP 2007-15562 A Japanese Patent Laid-Open No. 01-236505 JP 2009-051277 A JP 2010-058543 A

  However, Patent Document 1 requires a mechanism for continuously extracting light over a wide range, the structure of the outer surface of the frame is complicated, and a fitting structure with a cover member that forms the light extraction surface is also required. . Further, the frame has a sawtooth-shaped orientation surface having a light reflecting function, and it is necessary to provide a reflecting surface having a special structure. Further, the light extraction portion has a continuous curved shape, and brightness cannot be adjusted by changing the area of the light extraction portion with respect to the light extraction direction.

  Moreover, in patent document 2, in order to take out two types of light, it is necessary to guide light in a different light guide space. For this reason, it is necessary to make a light source movable.

  Further, Patent Document 3 irradiates a part of the illumination light to be irradiated obliquely to the side by changing the direction with the auxiliary reflector in the space of the main irradiator surrounded by the reflector having the opening. Is. Thereby, in addition to the original illumination irradiation part, the irradiation intensity of the illumination light of a part of the irradiation parts is increased. That is, it is illumination which irradiates illumination light from a light source in two directions, that is, a main irradiation surface and an oblique side surface (wall surface).

  In Patent Document 4, it is necessary to use an independent light guide plate to separate the light guide space. Therefore, an independent light source is also necessary. Moreover, the opening part of a side surface is orthogonal to the installation surface of LED, and the opening part of an upper surface is a mere opening, and there is no design property.

  Further, since the frame (glove) of the garden light of Patent Document 5 does not have a light reflecting function, the light emitted from the rod-shaped light source (single cap lamp) disposed in the cylindrical central portion is used as the light source on the upper surface of the cap. A space for extracting light to be extracted and emitted is secured in the entire outer cylindrical space. Therefore, light emitted from a directional point light source, a frame formed of a material excellent in light reflection characteristics, forms a light guide space, and diffuses and reflects the inside of the frame to equalize the illumination device is not. Therefore, the slit of the illuminating device of Patent Document 5 merely serves as a radiation port that leaks and emits direct light from the rod-shaped light source at the center of the cylinder from the slit provided in the cover.

  Patent Document 6 is a decorative lighting device in which two light guide plates are engraved with a pattern on the back. In this lighting device, light is incident from the side surface portion of each light guide plate, and the light in the light guide plate is emitted toward the portion of the opposing light guide plate where the pattern is formed to display the design in a three-dimensional manner in a light emitting state. Is. However, this lighting device uses diffuse reflection in the light guide space using diffuse reflection on the inner surface of the frame of the lighting device, and does not use the shape of the opening of the light extraction surface in a letter shape.

  In patent document 7, it is the structure which arrange | positions an illuminating device in a door panel, and aims at illuminating a step at the time of getting on and off of a motor vehicle. However, the illumination device of Patent Document 7 does not use diffuse reflection in the light guide space.

  Also, in this vehicular lighting device, immediately before the occupant releases the door, the LED light source provided at the lower end of the door molding is turned on, the lower outside of the door is turned on, and the door is released. An inward lower side of the door is illuminated by another LED light source provided at the lower end of the door molding. As described above, the two light source units are switched and used in accordance with the open / closed state of the door to illuminate an optimal, necessary and sufficient area, and a different light source is required for each open / closed state of the door.

  The present invention has been made in view of such problems, and an object of the present invention is to provide a mounting structure for an LED lighting device that can irradiate light uniformly and with low power consumption with a simple structure.

  In order to achieve the above-described object, the present invention provides an LED lighting device having a substantially rectangular parallelepiped frame comprising a bottom surface, a top surface, and four side surfaces surrounding an outer periphery of the bottom surface and the top surface. Is formed of a reflecting plate made of micro-foamed resin, and one or more LED light sources are provided on one side surface of the frame body, and the light emitting surface of the LED light source is provided on the other side surface facing the one side surface. Are arranged so as to face each other directly, the top surface is formed by a top surface shielding portion and a plurality of top surface opening portions for light extraction spaced apart from each other, and the other side surface is a side surface shielding portion, The frame body is formed by a reflector except for the top surface opening portion and the side surface opening portion, and the inner surface of the frame body transmits the light from the LED light source to the top surface opening. And a light guide space for guiding light to the side opening, and the LE A lighting device is mounted on a door panel of an automobile, and the light is extracted from the top surface opening portion toward the inner surface direction of the door panel, and is formed on the door panel from the side surface opening portion toward the lower side of the door panel. The LED illumination device mounting structure is characterized in that light can be taken out from the opened opening.

  The door panel has a resin molded structure, the opening formed in the door panel is an opening formed in the resin molded structure, and the opening formed in the resin molded structure is the ceiling. Two separate openings formed so as to correspond to the surface opening and the side opening, and the top opening and the side opening are aligned with the opening of the resin molding structure. The LED lighting device may be disposed on the resin molded structure.

  The top surface opening and the side surface opening are covered with an interior fabric made of either a textile fabric or a non-woven fabric that covers the resin molded structure of the door panel, and from the top surface opening and the side surface opening. The light may be extracted from a gap between the fibers of the interior fabric.

The top surface opening is covered with an interior fabric made of either a textile fabric or a non-woven fabric covering the resin molded structure of the door panel, and light from the top surface opening is a fiber of the interior fabric. The light from the side opening may be directly extracted without being taken out from the gap and the side opening being covered with the interior fabric.

  The top surface opening is formed in one or a plurality of figures or characters, and the lighting device is a decorative illumination that can visually recognize the one or more figures or characters from the outside. May be. Here, the mutual arrangement of the side opening and the side shielding part can be appropriately designed according to the specific structure of the light extraction part of the resin molded structure of the door panel.

  The fibers constituting the fiber woven fabric or the nonwoven fabric are polyester-based, flame-retardant polyester-based, polyphenylene ether-based, polypropylene-based, polyamide (nylon) -based, polyacrylonitrile-based, polyvinyl chloride-based, polyvinylidene chloride-based synthetic fibers, It is preferable to use at least one of cellulose-based, protein-based semi-synthetic fibers, rayon-based, special rayon-based, or regenerated fibers such as cupra, or a combination of these fibers. Considering the balance between cost and heat resistance, it is desirable to use polyester fiber or flame retardant polyester fiber.

Further, the fiber woven fabric or the non-woven fabric may contain at least one of an inorganic pigment, an organic pigment, and an inorganic substance.

  The micro-foamed resin of the reflection plate has an optical reflectance in the visible light band of wavelength 450 to 650 nm, a light reflectance when using an aluminum oxide standard piece, a total reflectance of 90% or more, and a diffuse reflectance of 90. % Or more. It is desirable that the total reflectance is 95% or more and the diffuse reflectance is 95% or more.

  Either the one side surface and the other side surface are formed at a right angle or an acute angle with respect to the bottom surface, or the side surface shielding portion and the side surface opening are formed at a right angle or an acute angle with respect to the bottom surface. It may be.

  The side opening is rectangular, and the side opening is integrally and continuously formed in an L shape so as to extend from the side to the bottom connected to the side, or connected to the side and the side. The connecting portion of the bottom surface may be provided with an inclined surface that is obliquely connected to both in a chamfered shape, and the side surface opening may be formed continuously from the side surface to the inclined surface.

  A light transmissive window material may be attached inside at least one of the top surface opening and the side surface opening.

  The window material may be made of at least one of an acrylic resin, a PET resin, a PC resin, a glass resin, or a glass material.

  Of the window material, the window material attached to the top surface opening is a light transmissive member made of a colored resin or glass material, and the colored light can be taken out from the window material of the top surface opening. Yes, it may be possible to extract white or daylight color, which is the emission color of the LED light source, from the side opening.

  Further, among the window materials, as the window material of the top surface opening, a light transmissive member constituted by a metal thin film or a colored film that transmits light and a light transmissive plate that holds these is provided on the top surface opening. It may be adhered to the back surface of the top surface shielding portion so as to be in close contact with the top surface.

  The LED illumination device may be housed inside an external frame that can extract light.

  The LED illuminating device is housed in an outer frame body from which light can be extracted. The outer frame body is formed of a light transmissive member, and the top surface opening of the outer frame body is colored. It may be formed of a light transmissive member or a transparent light transmissive member with a colored film stretched.

  By fixing the top surface opening of the frame body and the opening of the resin molding structure so as to coincide with each other, the light extracted from the top surface opening portion of the frame body can be extracted from the opening portion of the resin molding structure. The light can be extracted to the inside of the door panel through, and further, the light extracted from the side opening of the frame can be obtained by fixing the side opening of the frame and the opening of the resin molded structure. The light can be extracted from the opening of the resin molded structure to the lower side of the door panel.

  Here, it is necessary to arrange the top surface opening of the frame and the opening of the resin molding structure so that the arrangement of the two coincides, but the side opening of the frame and the resin molding structure Matching the arrangement of the side opening means that the side opening of the frame is included in the side opening of the resin molded structure, or that the arrangement of both is completely matched. Unlike the top opening of the frame, the side opening does not need to recognize the character type, etc., so the layout of the side opening of the frame and the opening of the resin-molded structure can be slightly misaligned. Is done.

  In addition, the arrangement of the top surface opening of the frame and the arrangement of the opening of the corresponding resin molding structure coincide with each other when the illumination device is observed from the outside of the opening of the resin molding structure. It means that one or a plurality of figures and character types provided in the top surface opening can be visually recognized without missing a visual field. That is, it is only necessary that the figure or character type of the opening on the top surface of the frame is included in the opening of the resin molded structure.

  The LED lighting device is a machine using a fixing pin having a head formed by deforming a pin formed on the resin-molded structure, fixing by a screw, fixing by fitting a protrusion and a recess, fixing by a fastener Fixed to the resin-molded structure by fixing means such as fixing by thermal fusion of fixing pins for fixing the resin-molded structure, or by fixing with a double-sided adhesive tape or adhesive. It may be fixed to the resin-molded structure by combining any of these means.

  A light transmissive plate or a holding plate is bonded to the outer surface side of the top surface of the frame body, and at least the light transmissive plate or the holding plate has an attachment hole so as to protrude outward of the frame body. The LED lighting device is fixed to the resin molding structure with screws or bolts in the mounting hole formed in the light transmission plate or the holding plate, or provided in the resin molding structure. The fixing pin thus inserted may be inserted into the mounting hole and fixed to the resin molding structure with the fixing pin having a head.

  An L-shaped member having an L-shaped cross section that protrudes in a flange shape toward the outside of the top surface of the frame body is provided on the side surface of the frame body, and the L-shaped member has an attachment hole. A fixing portion is formed, and the LED lighting device is fixed to the resin molding structure with a screw or a bolt at the mounting hole, or a fixing pin provided on the resin molding structure is attached to the mounting hole. It is desirable that it is either inserted through and fixed to the resin molding structure with the fixing pin having the head. At this time, a light transmitting plate or a holding plate may be bonded to the top surface on the outer surface side of the top surface, or a window material may be provided inside the top surface.

  A plate-like member having a fixing portion with a mounting hole is attached to a position of the top surface shielding portion that does not hinder light extraction, and the LED lighting device has the resin molding structure with a screw or a bolt at the mounting hole. Either fixed to the body, or a fixing pin provided in the resin molded structure is inserted into the mounting hole and fixed to the resin molded structure with the fixing pin having a head It may be.

  Further, a flange portion is formed toward an outer peripheral direction at an upper end portion of at least two side surfaces of the frame body, and the frame body is formed by attaching the top surface to the flange portion, and the top surface Mounting holes are provided at positions corresponding to each other of the flange portions, and the fixing holes are fixed to the resin molding structure with screws or bolts at the mounting holes, or fixing pins provided on the resin molding structure May be inserted into the mounting hole and fixed to the resin molded structure with the fixing pin having a head.

  A claw or a projection is provided on the outer periphery of the side surface, the top surface or the bottom surface of the frame body, and the claw or projection is fitted into a recess formed in the resin molded structure, and the LED lighting device May be fixed to the resin molded structure.

  When fixing the frame body to the resin molding structure, it is fixed using a frame body in which a fixing portion having a mounting hole is formed so as to protrude outward from the frame body, or of the frame body When fixing to the side surface using a frame having a fixing portion having an L-shaped mounting hole protruding in a flange shape toward the outside of the top surface, or fixing the fixing portion with a mounting hole When a plate-shaped member having a frame is fixed using a frame that is affixed to the top of the frame, a flange is formed on the side of the frame itself, and the top of the frame is affixed to the flange In the case of being fixed using a frame body that is fixed, or in the case of being fixed using a frame body on which nails or protrusions are formed, the opening on the top surface of the frame body and the frame body The arrangement of the openings on the side surfaces of the respective openings formed in the resin molded structure It is necessary to match the arrangement.

  When the LED light source is not lit, the top surface opening may be visible when the LED light source is lit without being visually recognized.

  The LED light source is mounted on a flexible flat circuit or a plurality of LED substrates at a predetermined interval, and a cutout portion is formed on the one side surface of the frame body in accordance with the shape and arrangement of the light emitting portion of the LED light source. The flexible flat circuit or the LED substrate may be bonded to the outer surface of the one side surface, and the light emitting surface of the LED light source may be exposed to the light guide space from the notch.

  The LED light source may be turned off with the automobile door closed, and may be turned on with the automobile door open.

  According to the present invention, the light of the same light source is guided in the front direction of the door panel and the side surface facing the LED light source, and is guided in the same light guide space using the diffuse reflection of the shielding part of the frame. For this reason, reflection of the light of a frame can be utilized, without using a light-guide plate like patent document 4. FIG. Moreover, it can be made uniform illumination intensity within the light guide space by diffuse reflection, and surface emission can be performed from each surface. Moreover, the brightness of illumination can be changed in design by changing the width and size of the slits and characters formed in the opening of the frame and the transmittance of the window material. Moreover, since the irradiation angle of the illumination light irradiated from an opening part becomes large because it is diffusely reflected by the light guide space, it can irradiate a wide range.

  Further, by providing openings on different surfaces of the frame, light can be extracted in two different directions that are substantially orthogonal, and the extracted light can be used for different purposes. For example, the light from the top opening can be used as decorative lighting that illuminates the interior of an automobile, and the lighting device can illuminate a foot outside the vehicle from the side opening. In this case, when the door panel to which the lighting device is attached is viewed, a decorative surface such as a logo mark can be visually recognized, and the brightness of the foot lighting can be further increased.

  Moreover, it is excellent also in designability by making a top | upper surface opening part into a some figure or a some character type. Here, by adding a character type such as a company logo mark, company name, or owner name to the top surface opening, it is possible to add message characteristics to the lighting device, advertisements and owner status Can be expected to increase.

  In addition, since the top opening and the side opening are covered with the interior fabric, the top opening and the side opening cannot be seen when the lamp is turned off, and light is emitted from the gap between the cloths when the lamp is turned on. It can be taken out. For this reason, since it is excellent in design property and the fall of the opening part area by interior fabric and light absorption are superimposed, a glare feeling can also be reduced.

  Even if the top opening is covered with the interior fabric and the side opening is not covered with the interior fabric, the top opening cannot be seen when the lamp is turned off, and when the lamp is lit, Light can be extracted. Moreover, since the light from the side opening is irradiated without passing through the interior fabric, the feet can be illuminated more brightly.

  In addition, by appropriately selecting the material for the interior fabric, the concealability of the top surface opening and the light extraction property are good.

  The LED lighting device is attached to the LED lighting device fixing portion formed integrally or separately with the resin molding structure in the door panel, so that the LED lighting device receives vibration while driving the car. Also, the lighting device can be firmly fixed to the door panel.

  Specifically, in the present invention, various fibers can be used as described above, but a plurality of fibers are used in combination with a fiber fabric, or a plurality of fibers are used in combination with a short fiber constituting a nonwoven fabric. Can do. When forming a fabric using a combination of a plurality of fibers, it is also possible to create a fabric using different fibers for warp and weft fibers, or using different fibers for each predetermined number of fibers.

  Further, the inorganic pigment contained in the fiber woven fabric or the nonwoven fabric is any one of carbon black, titanium oxide, zinc oxide, chromium oxide, and iron oxide, and the organic pigment includes phthalocyanine, azo, perinone, and perylene. A material containing any inorganic material such as kaolin, calcium carbonate, aluminum oxide, silica gel, or silicon oxide can be used.

  In addition, when the reflectance of the aluminum oxide standard piece is 100%, the micro-foamed resin of the reflecting plate reflects light efficiently if the total reflectance is 90% or more and the diffuse reflectance is 90% or more. Even if multiple reflections due to diffuse reflection are repeated, a decrease in illuminance can be suppressed, and even if the LED light source is reduced, both reduction in illumination power and surface emission can be realized. Furthermore, it is preferable that both the total reflectance and the diffuse reflectance are 95% or more.

  In addition, a part of the light from the LED light source is applied to the side shield part and the side opening part formed at a right angle or an acute angle with respect to the bottom face, and the irradiation light is directly extracted from the side opening part. After reflection, the light is diffusely reflected in the light guide space and taken out from the side opening as diffuse reflection light, whereby the luminance of the irradiation light irradiated from the opening can be equalized and surface light can be emitted.

  Also, the side surface of the frame is formed at an acute angle with respect to the bottom surface, and a part of the light from the LED light source is diffusely reflected on the bottom surface, and the diffusely reflected reflected light is surface-emitted at the top surface opening. Thus, the luminance of the lighting device can be equalized.

  In addition, if the rectangular side opening is integrally formed in an L shape so as to straddle the side surface and the bottom surface connected to the side surface, light can be extracted to both the side surface and the bottom surface.

  In addition, if a slope is provided at the connection portion between the side surface and the bottom surface connected thereto, and the side opening is continuously formed so as to extend from the side surface to the slope, light can be extracted in both the side surface and the oblique direction. . In this way, by forming the side opening in an L shape or straddling the slope, the light extraction angle from the side opening can be widened. At this time, the irradiation angle and irradiation range can be adjusted by adjusting the formation position, formation angle, and opening area of the side opening.

  Further, sealing of the top surface opening and the side surface opening with a light-transmitting transparent window material can prevent intrusion of foreign matter, dust, and liquid.

  The window material can be at least one of a light transmissive resin such as acrylic resin, PET resin, and PC resin, or a glass material. However, in terms of weight reduction, the window material may be made of a light transmissive resin. desirable.

  The window material affixed to the top surface opening is a light transmissive member made of a colored resin or glass material, and the colored light can be taken out from the window material of the top surface opening, and from the side surface opening. Can extract white or daylight color, which is the emission color of the LED light source. By doing in this way, colored light is taken out from the top surface opening, and white or daylight color is taken out from the side opening, so that the LED lighting device can be used as decorative lighting.

  The light extracted from the side opening may be slightly affected by the color of the top opening due to the reflection from the light transmitting member attached to the top opening. In this case, light of a color close to white or daylight can be obtained by providing a light transmissive member provided in the side surface opening with a complementary color light transmissive member by additive color mixing of colors provided in the top surface opening.

  Also, among the window materials, as the window material of the top surface shielding portion, the light transmission member is constituted by a metal thin film or a colored film that transmits light, and a light transmission plate or a holding plate that holds this, A thin metal film or colored film that is thin enough to transmit light can be reliably held. It is desirable that the light transmitting member is bonded so as to be in close contact with the top surface shielding portion.

  Moreover, a frame can be reliably protected by accommodating an LED illumination apparatus in the transparent external frame which can take out light.

  The LED illumination device is housed inside an external frame that can extract light, and the light extraction portion of the external frame can be appropriately changed in the structure and coloring degree of the light extraction member. For example, the top surface opening of the external frame may be formed of a colored light transmitting member, or may be formed of a transparent light transmitting member with a colored film stretched. Furthermore, by using a transparent light transmitting member for the side opening, the LED lighting device can be used as decorative lighting.

  Note that when light is extracted from the window material attached to the inside of the top surface opening and when light is extracted from the light transmitting member forming the outer frame, the diffuse reflection by the light reflecting member inside the frame is the most. Since it can be performed efficiently, it is desirable not to provide a window material inside the frame but to extract light from the light transmission member of the external frame.

  Here, it is not only light extraction but also dust and dust that enter the LED lighting device that the window material is attached to the top surface opening and the side surface opening of the LED lighting device and housed inside the external frame. Can be prevented. As a result, it is possible to prevent the lighting device from being damaged due to static electricity charged with dust or dust, or moisture from entering the LED lighting device and being damaged.

  When the LED light source is not turned on, the top surface opening is not visually recognized, and when the LED light source is turned on, the top surface opening can be visually recognized, thereby obtaining an LED lighting device mounting structure with excellent design. it can.

  Further, by using one or more flexible flat light sources in which a plurality of LED light sources are mounted on the flexible flat circuit at a predetermined interval, attachment to the frame body is easy, and the degree of freedom in wiring layout is high. At this time, a flexible flat light source can be arranged on the outer surface side of one side surface of the frame body by forming a notch portion on one side surface of the frame body in accordance with the shape of the light emitting portion of the LED light source. By doing in this way, the light guide space which covered the inner surface of the whole frame with the reflecting plate can be constituted only by exposing the light emitting surface of the LED light source in the light guide space.

  In addition, when the flexible flat light source is arranged on the inner surface side of one side surface of the frame body, it is a reflector made of a micro foam resin in which a notch is formed in accordance with the shape of the light emitting part of the LED light source, By covering the flexible flat circuit, there is no need to provide a wiring circuit in the light guide space, and the light guide space can be formed substantially by only the light reflecting plate, so that light is reliably diffused and reflected in the light guide space. Can be made.

  In addition, the lighting device switch is embedded in the door so that it turns off when the door of the car is closed and lights up when the door is opened. be able to.

  In addition, when an opening is provided only on the top surface of the frame, and the opening is not provided on the side facing the side on which the LED light source of the frame is disposed, but only the shielding is provided, the opening is completely open on the side. Since there is no portion, the diffuse reflection in the light guide space increases, so that more uniform light can be extracted from the top surface opening.

  Also, in this case, since the amount of light that can be extracted by diffuse reflection inside the frame increases, more uniform and bright light is extracted than when the side surface facing the LED light source is open. Can do. By doing in this way, it can be set not only as a two-way illuminating device but also as an illuminating device which takes out light from one direction. In this case, by forming a plurality of figures or character types in the top opening, it is possible to realize decorative lighting that allows the plurality of figures and character types to be visually recognized from the outside.

  In the case where an opening is provided only on the top surface of the frame and light is extracted in one direction from only the top surface of the frame, both the top and side openings are provided in the frame. A micro-foamed resin having the same optical characteristics can be used.

  ADVANTAGE OF THE INVENTION According to this invention, the attachment structure of the LED lighting apparatus which can irradiate uniform light with a simple structure can be provided.

The perspective view of LED lighting apparatus 1. FIG. The top view of the LED lighting apparatus 1. FIG. It is sectional drawing of the LED lighting apparatus 1, and is the sectional view on the AA line of FIG. It is sectional drawing of the LED lighting apparatus 1, and is the BB sectional drawing of FIG. (A), (b) is sectional drawing of other embodiment of the LED lighting apparatus 1. FIG. (A) is a front view of the flexible flat circuit 25, (b) is a rear view of the flexible flat circuit 25. FIG. (A), (b) is sectional drawing of other embodiment of the LED lighting apparatus 1. FIG. (A), (b) is sectional drawing of other embodiment of the LED lighting apparatus 1. FIG. Sectional drawing of LED lighting apparatus 1a. It is a top view of LED illuminating device 1a, (a) is an LED light source extinguishing, (b) is a figure which shows an LED light source lighting time. Sectional drawing of LED lighting apparatus 1b. Sectional drawing of LED lighting apparatus 1c. Sectional drawing of LED lighting apparatus 1d. The figure which shows the state which attached the LED lighting apparatus 1a to the lower part of the door panel 49 of a motor vehicle. (A), (b) is a figure which shows the LED lighting apparatus attachment structure 50. FIG. (A), (b) is a figure which shows the LED lighting apparatus attachment structure 50a. (A), (b) is a figure which shows LED lighting apparatus attachment structure 50b. (A), (b) is a figure which shows the LED lighting apparatus attachment structure 50c. (A), (b) is a figure which shows 50d of LED lighting apparatus attachment structures. (A) is a figure which shows LED lighting apparatus attachment structure 50e, (b) is a X arrow directional view of (a). (A) is a Y section enlarged view of Drawing 20 (a), and (b) is a figure showing other embodiments of (a). The figure which shows the LED lighting apparatus attachment structure 50f.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view showing the LED lighting device 1, and FIG. 2 is a plan view showing the LED lighting device 1. 3 is a cross-sectional view taken along line BB in FIG. 1, and FIG. 4 is a cross-sectional view taken along line AA in FIG. The LED illumination device 1 mainly includes a frame 3, an LED light source 19, and the like. In the following description, illustration of wiring and the like is omitted.

  The frame 3 has a substantially rectangular parallelepiped shape including four sides 9a, 9b, 9c, and 9d that surround the outer periphery of the top surface 5 and the bottom surface 7 and the top surface 5 and the bottom surface 7. That is, the top surface 5 faces the bottom surface 7, the side surface 9a faces the side surface 9b, and the side surface 9c faces the side surface 9d.

  The frame 3 is formed of a reflective plate made of a micro foam resin. The reflector made of micro foam resin is formed from a micro foam resin sheet (a porous member having a large number of fine bubbles). The microfoamed resin sheet used in the present invention is an insulating resin sheet having a foamed layer at the center and non-foamed layers on both sides. Here, the foam layer refers to a layer in which bubbles are generated by foaming.

  In the present invention, the thickness of the microfoamed resin sheet is 0.4 mm to 2.0 mm, and the thickness of the non-foamed layer is 10 to 30 μm. The thickness of the foamed layer is a value obtained by subtracting the thickness of the non-foamed layer from the thickness of the microfoamed resin sheet. That is, the thickness of the non-foamed layer becomes a substantially constant value even when the total thickness of the microfoamed resin sheet is increased. The reason for this is that the non-foamed layer is formed by outgassing in the manufacturing process of the microfoamed resin sheet, and the thickness of the layer formed thereby is determined by the distance from the surface of the microfoamed resin sheet.

  The microfoamed resin sheet of the present invention preferably has an average cell diameter in the range of 0.2 μm to 40 μm. Here, if the average bubble diameter is less than 0.2 μm, the light transmittance increases and the reflectance decreases. If the average bubble diameter is too large, the diffuse reflectance decreases, so the average bubble diameter needs to be 0.2 μm to 40 μm. Further, the average bubble diameter is preferably 0.5 μm to 20 μm.

  The micro-foamed resin sheet is made of a thermoplastic resin. As an optical characteristic for the visible light band with a wavelength of 450 to 650 nm, the light reflectance when the reflectance of the aluminum oxide standard piece is 100%, the total reflectance is 90% or more. The diffuse reflectance is in the range of 90% or more, and the wavelength dependence of the reflectance is in the range of 1% or less. More preferably, the total reflectance is 95% or more, and the diffuse reflectance is 95% or more. The micro-foamed resin sheet is effective as a reflector because both the total reflectance and the diffuse reflectance are high. As the reflectance, a reflector having a total reflectance of 98% and a diffuse reflectance of 98% can be used.

Here, the micro-foamed resin sheet of the present invention is an insulating member, and its volume resistivity is 10 ¹² Ω to 10 ¹⁷ Ω. If it is this range, the insulation in this invention can fully be ensured.

  In the present invention, the microfoamed resin sheet is preferably composed of any one of PET resin (polyethylene terephthalate resin), PC resin (polycarbonate resin), flame retardant PC resin, and acrylic resin. In addition to the above, a transparent resin obtained by imparting flame retardancy to an acrylic resin such as a cycloolefin polymer or polyacrylonitrile can also be used for the microfoamed resin sheet.

  The top surface 5 is provided with a plurality of top surface openings 11 spaced from each other. The top surface opening 11 is an opening for extracting light from the inside. The top surface opening 11 is a plurality of figures or a plurality of character types. For this reason, the LED lighting device 1 can be used as decoration lighting for visually recognizing a plurality of figures or a plurality of character types from the outside of the lighting device. In addition, the form and number of the top surface openings 11 are not limited to the illustrated example.

  A portion of the top surface 5 other than the top surface opening 11 is a top surface shielding portion 13. That is, the top surface 5 is formed by the top surface shielding portion 13 and the plurality of top surface opening portions 11 for light extraction that are separated from each other.

  Moreover, as shown in FIG. 2, the top surface shielding part 13 is comprised by the outer periphery shielding part 13a, the shielding part 13b between opening parts, and the shielding part 13c in opening part. The outer periphery shielding part 13a is formed so that the whole several top-surface opening part 11 may be enclosed. The in-opening shielding portion 13c is not always necessary. That is, the top surface shielding portion 13 is configured by the outer peripheral shielding portion 13a and the inter-opening shielding portion 13b, or is configured by the outer peripheral shielding portion 13a, the inter-opening shielding portion 13b, and the intra-opening shielding portion 13c. Either.

  Here, the region indicated by the alternate long and short dash line in FIG. 2 is a region where the top surface opening portion 11, the inter-opening shielding portion 13 b, and the in-opening shielding portion 13 c are combined, and the outer peripheral shielding portion 13 a is the top surface opening portion 11. And the opening-to-opening shielding portion 13b and the opening-side shielding portion 13c. The top surface opening part 11 is inscribed in the outer periphery shielding part 13a. The inter-opening shielding portion 13b is formed so as to be inscribed in the outer peripheral shielding portion 13a between the top surface opening portions 11. Further, the opening inner shielding portion 13 c is formed so as to be inscribed in the top surface opening portion 11.

  Here, the inter-opening shielding portion 13b and the intra-opening shielding portion 13c form the contour of the top surface opening portion 11 and can act as a reflector, and guide light in the light guide space to the side surface. be able to.

  As shown in FIG. 4 (cross-sectional view taken along the line BB in FIG. 1), the LED light source 19 is disposed on the side surface 9a formed at right angles to the bottom surface 7, and the LED light source 19 is disposed on the side surface 9b facing the side surface 9a. It arrange | positions so that a light emission surface may oppose directly. There may be one LED light source 19 or a plurality of LED light sources 19 may be arranged at a predetermined interval. In the present embodiment, an example in which three LED light sources 19 are arranged at a predetermined interval is shown. The LED light source 19 is arranged near the center of the side surface 9a in the height direction.

  Moreover, the LED light source 19 is arrange | positioned directly under the top | upper surface shielding part 13 (outer periphery shielding part 13a). By doing in this way, the LED light source 19 cannot be directly visually recognized from directly above the top surface opening part 11. Here, it is desirable that the LED light source is disposed at substantially the center of the side surface 9a.

  One or a plurality of side surface openings 15 are formed on the side surface 9b that faces the side surface 9a on which the LED light source 19 is disposed and is formed at right angles to the bottom surface 7. The side opening 15 is an opening for extracting light from the inside. The side opening 15 has a substantially rectangular shape. That is, the plurality of side surface openings 15 are cut out in a rectangular shape and formed at predetermined intervals.

  As shown in FIG. 4 (cross-sectional view taken along the line AA in FIG. 1), one or a plurality of side surfaces corresponding to the number of the LED light sources 19 are provided at the front position of the opposing surface (side surface 9b) of the LED light source 19. A side shield 17 that partitions the opening 15 is provided. For this reason, the direct light (C in the figure) having the highest luminance from the LED light source 19 is shielded by the side shield part 17. The side opening 15 may be one instead of a plurality.

  As described above, the side surface 9 b is formed by the side surface opening 15 and the side surface shielding portion 17. That is, the side shield 17 and the side opening 15 are formed at right angles to the bottom surface 7. In addition, a side shield 17 having a predetermined height is provided above the side opening 15. The lower end of the side opening 15 is formed at the same height as the bottom 7 of the frame 3. That is, the side surface opening 15 is formed at a predetermined height (a range lower than the height of the side surface 9b) from the lower end in the height direction of the side surface 9b.

  A light transmissive window member 12 is attached to the inner surface side of the top surface 5. That is, the window material 12 is attached to the inner surface of the top surface shielding portion 13 and provided inside the frame body 3 so as to cover the top surface opening 11 of the frame body 3. Similarly, a light transmissive window member 12 is attached to the inner surface side of the side surface 9b. That is, the window material 12 is attached to the inner surface of the side shield part 17. The window material 12 is a member that transmits light, and closes the top surface opening 11 and the side surface opening 15. The window material 12 may be disposed on at least one of the top surface 5 and the side surface 9b.

  The window material is made of at least one of 12, a light-transmitting resin such as acrylic resin, PET resin or PC resin, or a glass material. Moreover, the window material 12 affixed on the top | upper surface opening part 11 among the window materials 12 is good also as a light transmissive member which consists of colored resin or glass material. By doing in this way, it is possible to take out colored light from the window material 12 of the top surface opening 11, and it is possible to take out white or daylight color that is the emission color of the LED light source 19 from the side opening 15. It is.

  As shown in FIG. 3 (cross-sectional view taken along line BB in FIG. 1), the frame 3 is formed by a reflector except for the top surface opening 11 and the side surface opening 15 formed on the top surface 5 and the side surface 9b. Is done. That is, the inner surface of the frame 3 forms a light guide space 21 that guides the light from the LED light source 19 to the top surface opening 11 and the side surface opening 15. In this way, the light from the LED light source 19 is diffusely reflected on the top surface shielding portion 13, the side surface shielding portion 17, the bottom surface 7 and the like, and is guided to the top surface opening portion 11 and the side surface opening portion 15, thereby opening the top surface opening. Light can be extracted from the portion 11 and the side opening 15.

  That is, part of the light from the LED light source 19 can be diffusely reflected on the bottom surface 7, and the reflected light that has been diffusely reflected can be surface-emitted at the top surface opening 11. Further, a part of the light from the LED light source 19 is applied to the side shield 17 and the side opening 15 formed at right angles to the bottom surface 7, and the irradiation light is directly taken out from the side opening 15 and at the same time the side shield is provided. After being reflected by the portion 17, it can be diffusely reflected in the light guide space 21 and extracted from the side opening 15 as diffusely reflected light. Here, in the light guide space, reflection is repeated, and multiple reflection occurs, so that diffuse reflection light is made more uniform.

  Here, the ratio of the area of the top surface opening 11 to the total area of the top surface 5 including the area of the top surface opening 11 and the top surface shielding part 13 is desirably 20 to 50%. That is, it is desirable that the ratio of the area of the top surface shielding portion 13 to the total area of the top surface 5 including the area of the top surface opening 11 and the top surface shielding portion 13 is 80 to 50%.

  Furthermore, the ratio of the area of the side opening 15 to the entire area of the side surface 9b including the area of the side opening 15 and the side shielding part 17 is desirably 20 to 50%. That is, it is desirable that the ratio of the area of the side shield part 17 to the entire area of the side face 9b including the area of the side opening part 15 and the side shield part 17 is 80 to 50%.

  If the ratio of the top surface opening 11 is less than 20%, the brightness of the decorative lighting as a whole is insufficient. This is because although the light is concentrated per unit area of the top surface opening 11, the brightness of the entire decorative surface decreases. In the present invention, since the diffuse reflectance of the inner surface of the frame 3 is high, the intensity of light extracted from the top surface opening 11 is greatly reduced even if the top surface opening 11 is narrowed and repeatedly diffusely reflected. There is no.

  Moreover, when the ratio of the top surface opening part 11 exceeds 50%, a light guide function will be insufficient, and the direct irradiation light from an opening part will increase. If the ratio of the top surface opening exceeds 50%, the amount of light per unit area taken out from the top surface opening 11 decreases, and at the same time, the amount of light extracted by repeating diffuse reflection in the light guide space is uniform. This is because the brightness is reduced and unevenness of brightness occurs in the light extracted from the top surface opening. Therefore, the upper limit of the opening area of the top surface opening 11 on the top surface 5 is desirably less than 50%. More preferably, the ratio of the area of the top surface opening 11 to the total area of the top surface 5 is 30% or more and 50% or less, and the ratio of the area of the top surface shielding part 13 is 50% or more and 70. % Or less.

  In addition, it is desirable that the area ratio between the side opening 15 and the side shielding part 17 satisfies the same tendency as the area ratio between the top opening 11 and the top shielding part 13. By setting not only the opening ratio of the top surface opening part 11 but also the opening ratio of the side surface opening part 15 within a predetermined range, the light intensity is uniformized by diffuse reflection in the light guide space 21, and each opening part is measured. The uniform light can be taken out from.

  In addition, the ratio of the total area of the opening portion including the area of the top surface opening portion 11 and the area of the side surface opening portion 15 to the inner surface area of the internal space of the frame body 3 is desirably 10 to 25%. More desirably, it is 10 to 20%. Here, the inner surface area of the internal space of the frame 3 is the sum of the inner areas of the top surface 5, the bottom surface 7, and the side surfaces 9a, 9b, 9c, 9d (including all of the shielding portion and the opening portion).

  By doing in this way, light can be efficiently confined in the light guide space 21. As a result, the amount of light per area from the opening can be secured.

  Here, when the ratio of the length of the bottom surface 7 to the height of the side surfaces 9a, 9b, 9c, 9d in the cross-sectional view of the LED lighting device 1 of FIG. 3 is an aspect ratio, it is desirable that the aspect ratio is large. Is preferably 2 or more. The reason for this is that when the aspect ratio is large, the light directly radiated from the LED light source 19 to the side surface opening 15 of the side surface 9b is reduced. This is because the amount of light confined in the space 21 increases.

  In addition, since the ratio of the total area of the opening part which added the area of the top surface opening part 11 and the area of the side surface opening part 15 to the inner surface area of the internal space of the frame 3 is less than 10%, the opening area is small. The brightness of the decorative lighting as a whole is insufficient. Further, if the ratio of the area of the opening, which is the sum of the area of the top surface opening 11 and the area of the side surface opening 15, with respect to the inner surface area of the internal space of the frame body 3 exceeds 25%, the light into the space The amount of confinement is reduced, and the amount of light extracted per area from each opening is reduced.

  Here, the ratio of the area of the opening, which is the sum of the area of the top surface opening 11 and the area of the side surface opening 15, with respect to the inner surface area of the internal space of the frame 3 is the top surface opening 11 and the top surface shielding. It is desirable that it is not more than half of 20 to 50%, which is the ratio of the area of the top surface opening 11 to the total area of the top surface 5 including the area of the portion 13. The ratio of the area of the opening, which is the sum of the area of the top surface opening 11 and the area of the side opening 15, to the inner surface area of the internal space of the frame 3 is preferably 20% or less.

  Further, as shown in FIG. 4, the distance between the side surface 9a and the side surface 9b to which the LED light source 19 is joined is L. The alignment half angle (α in the figure) with respect to the front direction of the LED light source 19 is, for example, an angle range of 60 ° ± 10 °. In this case, in order to continuously receive the direct irradiation light from the adjacent LED light sources 19 on the side surface 9b, the installation interval P between the LED light sources 19 is 2L × tan (60 ° ± 10 °). It is desirable to be. Thus, the brightness | luminance of the LED lighting apparatus 1 can be equalized by arrange | positioning the LED light source 19. FIG. Here, at the alignment half angle of 60 °, the respective light intensities from the adjacent LED light sources 19 are superimposed, so that the luminance at the alignment half angle of 60 ° is substantially equal to the luminance at the normal position at the center of the LED light source 19. become.

  The form of the side opening 15 is not limited to the example described above. For example, as shown in FIG. 5A, the rectangular side opening 15 may be formed integrally and continuously so as to extend from the side surface 9b to the bottom surface 7 connected thereto. That is, the side opening 15 may be formed in an L-shaped cross section.

  By doing in this way, the light diffused and reflected in the light guide space 21 can be extracted from the side opening 15 not only downward but also toward the bottom.

  Further, as shown in FIG. 5 (b), the side surface 9b and the connecting portion of the bottom surface 7 connected to the side surface 9 are provided with slopes 23 that obliquely connect the two in a chamfered manner, and the rectangular side surface opening 15 is provided. You may form continuously so that it may straddle the slope 23 from the side surface 9b.

  Even in this case, the light diffusely reflected in the light guide space 21 can be extracted from the side opening 15 not only downward but also toward the bottom.

  In the above-described embodiment, the example in which the LED light source 19 is directly disposed on the inner surface of the side surface 9a has been described. However, the present invention is not limited to this. The LED light source 19 may be arranged in a flexible flat circuit. FIG. 6A is a front view of the flexible flat circuit 25, and FIG. 6B is a rear view of the flexible flat circuit 25.

  The flexible flat circuit 25 is a cable in which a circuit conductor (for example, a circuit formed of a copper foil or a copper wire) is covered with a resin (for example, PET, polyimide, polyethylene naphthalate), and upper and lower surfaces are covered with a laminated resin. At least a pair of circuit conductors are formed inside the flexible flat circuit 25 cut to a predetermined length, and these circuit conductors are connected to each other in the vicinity of the end of the flexible flat circuit 25 on which the LED light source 19 is mounted. A conductor member 29 is provided for conducting. The conductor member 29 is electrically connected to the internal circuit conductor. That is, the wiring circuit 27 is formed by the LED light source 19, the circuit conductor, and the conductor member 29. Instead of using the conductor member 29, the wiring circuit 27 may be formed by bending the conductor circuit at the end and connecting the circuit conductors.

  In addition to the LED light source 19, circuit components such as resistors, fuses, and current limiting components can be incorporated in the wiring circuit as necessary. Here, when the laminated resin is a PET resin, an olefin-based adhesive, a polyester-based adhesive, or the like can be used as an adhesive for adhering the laminated resin.

  In the flexible flat circuit 25, one or a plurality of LED light sources 19 are arranged at a predetermined interval. The electrode terminal of the LED light source 19 is caulked from the surface of the flexible flat circuit 25 to the internal wiring circuit 27, or one of the laminated coating resins is peeled off, and the electrode terminal and the wiring circuit 27 are soldered or cooled at a low temperature. The LED light source 19 can be mounted by performing brazing or the like.

  The flexible flat circuit 25 and the LED light source 19 are combined to form a flexible flat light source 26. That is, one or more LED light sources 19 are mounted on the flexible flat circuit 25 at a predetermined interval to constitute the flexible flat light source 26.

  As shown in FIG. 7A, the flexible flat light source 26 is bonded and bonded to the outer surface of the side surface 9a with an adhesive or the like. A cutout 31 a is formed on the side surface 9 a in accordance with the shape of the light emitting portion of the LED light source 19. The light emitting surface of the LED light source 19 is exposed to the light guide space 21 from the notch 31a.

  In place of the flexible flat circuit 25, an LED substrate may be similarly arranged. That is, one or a plurality of LED light sources 19 are mounted on the flexible flat circuit 25 or the LED substrate at a predetermined interval, and the side surface 9a of the frame 3 is notched according to the shape and arrangement of the light emitting portion of the LED light source 19. The flexible flat circuit 25 or the LED substrate is bonded to the outer surface side of the side surface 9a, and the light emitting surface of the LED light source 19 is exposed to the light guide space 21 from the notch.

  Further, as shown in FIG. 7B, the flexible flat light source 26 may be disposed by being attached to the inner surface of the side surface 9a with an adhesive or the like. In this case, the reflecting plate 33 made of micro foam resin is arranged so as to cover the flexible flat light source 26. In the reflecting plate 33, one or a plurality of cutout portions 31b are formed in accordance with the shape and arrangement of the light emitting portion of the LED light source 19. The light emitting surface of the LED light source 19 is exposed to the light guide space 21 from the notch 31b.

  Thus, by using the flexible flat light source 26, the arrangement of the LED light source 19 is easy, and the assembly work is also easy. Further, when the flexible flat light source 26 is disposed on the inner surface of the frame 3, diffuse reflection can be efficiently caused in the light guide space 21 by using the reflection plate 33 that covers the flexible flat light source 26.

  Further, in the above-described embodiment, the example in which the side surface 9b is formed perpendicular to the bottom surface 7 is shown, but the present invention is not limited to this.

  FIG. 8A is a cross-sectional view showing an example in which the side surface 9 b is formed at an acute angle with respect to the bottom surface 7. That is, the side shield 17 and the side opening 15 are formed at an acute angle with respect to the bottom surface 7. Even in this case, part of the light from the LED light source 19 can be diffusely reflected on the bottom surface 7, and the reflected light that has been diffusely reflected can be extracted from the top surface opening 11.

  Further, a part of the light from the LED light source 19 is irradiated to the side shielding part 17 and the side opening 15 formed at an acute angle with respect to the bottom surface 7, and the irradiation light is directly extracted from the side opening 15, and at the same time, After being reflected by the shielding part 17, it can be diffusely reflected in the light guide space 21 and extracted from the side opening 15 as diffusely reflected light. Here, the ratio of the direct light emitted from the respective openings of the top surface opening 11 and the side surface opening 15 with respect to the light flux of the direct irradiation light from the LED light source 19 can be reduced.

  FIG. 8B is a cross-sectional view showing an example in which the side surface 9 a and the side surface 9 b are formed at an acute angle with respect to the bottom surface 7. That is, the emission direction of the LED light source 19 is directed toward the bottom surface 7. Even in this case, part of the light from the LED light source 19 can be diffusely reflected on the bottom surface 7, and the reflected light that has been diffusely reflected can be surface-emitted at the top surface opening 11. Further, a part of the light from the LED light source 19 is irradiated to the side shielding part 17 and the side opening 15 formed at an acute angle with respect to the bottom surface 7, and the irradiation light is directly extracted from the side opening 15, and at the same time, After being reflected by the shielding part 17, it can be diffusely reflected in the light guide space 21 and extracted from the side opening 15 as diffusely reflected light.

  Only the side surface 9 a may be formed at an acute angle with respect to the bottom surface 7, and the side surface 9 b may be formed perpendicular to the bottom surface 7. Although not shown, one or both of the side surfaces 9 c and 9 d may be formed at an acute angle with respect to the bottom surface 7.

  As described above, according to the present embodiment, since the frame body 3 of the LED lighting device 1 is made of a micro-foamed resin sheet having excellent light reflection characteristics, the entire inner surface of the frame body 3 can function as a reflector. Further, light can be extracted from two surfaces of the top surface opening 11 and the side surface opening 15 that are orthogonal to each other. At this time, since light diffusely reflected in the same light guide space 21 is taken out from each opening without dividing the light guide space 21, the number of components is small, and the structure is simple and lightweight.

  In addition, since it is not necessary to provide a separate reflector, the handleability is good and the assembly workability is excellent. Moreover, since direct light from the LED light source 19 is shielded by the top surface shielding portion 13 (outer periphery shielding portion 13a), the glare of the surface light emitting portion of the top surface opening 11 of the LED lighting device 1 can be reduced. . Similarly, by providing the side shielding part 17 in front of the LED light source 19, the glare of the surface light emitting part of the side opening 15 of the LED lighting device 1 can be reduced.

  As described above, when the LED light source 19 of the LED lighting device 1 emits light, the light from the LED light source 19 is not directly irradiated, but diffuse reflection is repeated in the light guide space 21 on the inner surface of the frame 3. Irradiated from the top surface opening 11 and the side surface opening 15. For this reason, light can be uniformly diffused and irradiated outward without using a lens or the like.

  In addition, by making the installation pitch of the LED light sources 19 appropriate, the light emitted from the adjacent LED light sources 19 continues in the side opening 15 and the boundary between the LED light sources 19 is difficult to understand, and uniform light is obtained. be able to. In the above embodiment, the micro-foamed resin sheet is used as the frame body material. However, the frame body may be formed by attaching a sheet material having a diffuse reflection function to the inner surface of the frame body.

  Next, a second embodiment will be described. FIG. 9 is a cross-sectional view of the LED lighting device 1a. In addition, in the following description, about the structure which show | plays the same function as the LED lighting apparatus 1, the code | symbol same as FIGS. 1-8 is attached | subjected and the overlapping description is abbreviate | omitted.

  The LED lighting device 1 a has substantially the same configuration as the LED lighting device 1, but differs in that a film 35 and a holding plate 37 are disposed on the top surface 5. The film 35 is a PET film made of, for example, PET (polyethylene terephthalate), and a metal thin film is provided by vapor deposition of a metal such as aluminum. The film 35 transmits light.

  A colored holding plate 37 having a light transmittance of 20 to 30% from the LED light source 19 is disposed above the film 35. The holding plate 37 is, for example, an acrylic plate. The film 35 is attached to the holding plate 37, and the holding plate 37 to which the film 35 is attached is further attached to the top surface 5. In the present embodiment, an independent top surface shielding portion 13 can be formed inside the top surface opening 11. For example, a reflecting plate made of a micro foam resin may be attached to the lower surface side of the film 35 at a site corresponding to the top surface shielding portion 13.

  FIG. 10A is a plan view of the LED lighting device 1a with the LED light source 19 turned off. Since the top surface opening 11 of the top surface 5 is covered by the film 35 and the holding plate 37, the characters and figures of the top surface opening 11 cannot be visually recognized from the outside when the LED light source 19 is turned off. .

  In addition, although illustration is abbreviate | omitted, you may affix a separate black film between the top | upper surface 5 (top | upper surface shielding part 13) and the film 35. FIG. When the top surface shielding portion 13 is a light color such as white, it is possible to suppress the top surface shielding portion 13 from being seen through. Thus, in the state which does not light the LED light source 19, the metal thin film provided in the film 35 is visually recognized, and the shape of the top surface opening part 11 cannot be visually recognized.

  FIG. 10B is a plan view of the LED lighting device 1a in a state where the LED light source 19 is turned on. When the LED light source 19 is turned on, a part of the light diffusely reflected in the light guide space 21 passes through the film 35 and the holding plate 37. For this reason, the shape (a plurality of figures and character types) of the top surface opening 11 can be visually recognized.

  According to the second embodiment, an effect similar to that of the first embodiment can be obtained. Further, since the top surface opening 11 is blocked, no foreign matter enters the inside from the top surface opening 11. In addition, when the LED light source 19 is turned off, the form of the top surface opening 11 cannot be visually recognized. However, by turning on the LED light source 19, the figure or character type of the top surface opening 11 can be highlighted.

  Next, a third embodiment will be described. FIG. 11 is a cross-sectional view of the LED lighting device 1b. The LED lighting device 1b has substantially the same configuration as the LED lighting device 1, but differs in that an external frame 39 is used.

  The LED lighting device 1 b is composed of the LED lighting device 1 and an external frame 39. The outer frame 39 is a substantially rectangular parallelepiped, and is a transparent or translucent member. That is, the LED lighting device 1b is configured by housing the LED lighting device 1 in a transparent outer frame 39 from which light can be extracted.

  In addition, you may accommodate the LED lighting apparatus 1a mentioned above inside the external frame 39. FIG. In addition, the outer frame 39 may be formed such that the shape of the side surface is inclined with respect to the bottom surface according to the form of the LED lighting device housed inside, and a slope is formed at the boundary between the side surface and the bottom surface. Also good.

  According to the third embodiment, the same effect as that of the first embodiment can be obtained. Further, by using the external frame 39, it is possible to prevent foreign matter from entering the inside. Further, the deformation of the frame body 3 can be prevented, and the frame body 3 can be reliably protected.

  Next, a fourth embodiment will be described. FIG. 12 is a cross-sectional view of the LED lighting device 1c. The LED lighting device 1c is substantially the same as the LED lighting device 1, but differs in that a frame 3a is used.

  The frame body 3 a has a substantially rectangular parallelepiped shape including the bottom surface 7, the top surface 5, and the four side surfaces 9 a, the side surface 9 b, and the side surfaces 9 c and 9 d surrounding the outer periphery of the bottom surface 7 and the top surface 5. . In the present embodiment, the frame body 3a is not made of a micro foam resin, but is made of a more rigid member such as metal or resin. Similarly to the frame 3, the top surface 5 is formed by a plurality of top surface openings 11 for light extraction that are spaced apart from the top surface shielding portion 13.

  An LED light source 19 is disposed on the inner surface side of the side surface 9a of the frame 3a. The LED light source 19 includes an LED substrate 41 on which one or a plurality of LED elements are mounted. That is, one or more LED light sources 19 are mounted on the LED substrate 41 at a predetermined interval. The LED substrate 41 is, for example, a rigid glass epoxy substrate. Moreover, the surface exposed to the light guide space 21 of the wiring of the LED substrate 41 and the LED substrate that is not shown is covered with a reflective plate 33 made of micro foam resin. That is, the reflecting plate 33 is provided with one or a plurality of cutout portions 31b according to the shape of the light emitting portion of the LED light source 19, and the light emitting surface of the LED light source 19 is exposed to the light guide space 21 from the cutout portion 31b. .

  Further, the side surface 9b opposite to the side surface 9a is formed with a side surface shielding portion 17 and one or more side surface openings 15. Further, the inner surface of the frame 3a is covered with a reflective plate 33a made of micro foam resin so as not to block the top surface opening 11 and the side surface opening 15, and the light guide space 21 is formed.

  Light transmitting members 47 are arranged in close contact with the respective surfaces at locations corresponding to the top surface opening 11 and the side surface opening 15. That is, the light transmission member 47 is disposed on the outer surfaces of the top surface 5 and the side surface 9b.

  The light transmitting member 47 may have any configuration as long as it is a member that transmits light, but preferably includes a metal thin film 43 and a light transmitting plate 45 as illustrated. The metal thin film 43 is a foil that is thin enough to transmit light. When the metal thin film 43 is used, it is fragile due to tearing or the like, and is thus attached to the transparent light transmission plate 45 to constitute the light transmission member 47. The metal thin film 43 may be attached to the inner surface side of the light transmission plate 45, or the metal thin film 43 may be sandwiched between the pair of light transmission plates 45.

  The metal thin film 43 may be a film in which a thin film is formed on a base material such as a transparent film. Handling is facilitated by forming a film having a metal thin film in this way. Moreover, the light transmissive member 47 may be composed of a colored film that transmits light and a light transmissive plate 45 that holds them. That is, the light transmissive member 47 constituted by the metal thin film 43 or the colored film that transmits light and the light transmissive plate 45 that holds these may be bonded so as to be in close contact with the top surface shielding portion 13.

  The metal thin film 43 is, for example, an aluminum thin film, and the light transmission plate 45 is, for example, an acrylic plate. The light transmission plate 45 may be an emulsified or colored acrylic plate having a light transmittance of 20 to 30%, for example.

  According to the fourth embodiment, the same effect as that of the first embodiment can be obtained. Moreover, since the frame 3a is made of a rigid metal or resin, deformation of the frame 3a can be suppressed. Moreover, since the inner surface of the frame 3a is covered with the reflecting plate 33a made of micro-foamed resin, diffuse reflection can be efficiently performed in the light guide space 21.

  Further, by using the light transmitting member 47, it is possible to prevent foreign matter / liquid from entering the light guide space 21.

  In addition, you may arrange | position the LED board 41 in the outer surface side of the side surface 9a of the frame 3a. In this case, the side surface 9 a is provided with one or a plurality of cutout portions in accordance with the shape of the light emitting portion of the LED light source 19, and the light emitting surface of the LED light source 19 is exposed to the light guide space 21 from the cutout portion. Even if it does in this way, the same effect can be acquired.

  Next, a fifth embodiment will be described. FIG. 13 is a cross-sectional view of the LED lighting device 1d. The LED illumination device 1d has substantially the same configuration as the LED illumination device 1, but differs in that the side opening 15 is not provided.

  In the LED lighting device 1d, the side surface opening 15 is not provided, and only the top surface opening 11 is provided as the opening. The frame 3 of the LED lighting device 1d is formed by a reflector except for the top surface opening 11 formed on the top surface 5. The frame 3 forms a light guide space 21 that guides the light from the LED light source 19 to the top opening 11. In this way, the light from the LED light source 19 can be diffusely reflected on all surfaces other than the top surface opening 11, guided to the top surface opening 11, and light can be extracted from the top surface opening 11. . The window material 12 is affixed so that the top surface opening part 11 may be plugged up and in close contact with the back surface of the top surface shielding part 13.

  Note that the LED illumination device 1d does not extract light from the side opening, and thus has no side opening and has a large light confinement effect. For this reason, as for the upper limit of the ratio with respect to the area of the whole top surface 5 of the top surface opening part 11 of LED lighting apparatus 1d, it is desirable that it is 60%.

  When the opening area ratio of the top surface opening 11 exceeds 60%, the amount of light extracted that is made uniform by repeating diffuse reflection in the light guide space 21 decreases. As a result, the amount of light directly emitted from the top surface opening 11 is increased, and luminance unevenness occurs in the light extracted from the top surface opening 11. For this reason, the upper limit of the light taken out from the top surface opening is 60%. Further, when the conference area ratio of the top surface opening 11 is less than 20%, since the side surface opening is not provided, the brightness itself of the opening slightly increases, so that the brightness of the decorative lighting as a whole is not insufficient. However, since the number of diffuse reflections until the light is extracted from the top surface opening 11 increases, the light extraction efficiency as the illuminating device is reduced, which increases waste. For this reason, it is preferable that the ratio of the top | upper surface opening part 11 shall be 20% or more.

  In the LED illumination device 1d, as in the LED illumination device 1, the installation interval P (see FIG. 4) between the LED light sources 19 is 2L × tan (60 ° ± 10 °). It is desirable for equalizing the luminance in the direction.

  As in the fifth embodiment, only the top surface opening 11 may be formed without providing the side surface opening 15. In this case, the window member 12 is provided on the inner surface of the top surface opening 11 in the top surface opening 11 of the LED lighting device 1d. A member having any configuration of the plate 37 and a holding plate provided with the film 35 attached thereto may be used.

  Next, an LED lighting device mounting structure will be described. The LED lighting device described above is used for an automobile door panel.

  FIG. 14 is a diagram showing an LED lighting device mounting structure 50 in which the LED lighting device 1 is mounted on the lower part of a door panel 49 of an automobile. The LED lighting device 1 is installed in a door panel 49 of an automobile. Light can be extracted from the top surface opening portion 11 from the door panel 49 toward the inner surface of the vehicle interior. Further, it is possible to extract light from the side opening 15 toward the lower side of the door panel 49. Instead of the LED lighting device 1, LED lighting devices 1a, 1b, and 1c may be used.

  Here, the top surface opening 11 and the side surface opening 15 are covered with the interior fabric 51 of the door panel 49. For this reason, when the LED lighting device 1 is turned on, the light from the top surface opening 11 and the side surface opening 15 is extracted from the gap between the fibers of the interior fabric 51. Alternatively, the side opening 15 can be directly extracted from the side opening 15 without being covered with the interior fabric 51.

  The interior fabric 51 is made of, for example, a fiber woven fabric or a nonwoven fabric. The fibers constituting the fiber woven fabric or the nonwoven fabric are polyester, flame retardant polyester, polyphenylene ether, polypropylene, polyamide (nylon), polyacrylonitrile, polyvinyl chloride, polyvinylidene chloride synthetic fiber, cellulose Or a semi-synthetic fiber of protein type, rayon type, special rayon type, or recycled fiber of cupra, or a combination of these fibers. In particular, considering the balance between cost and flame retardancy, it is desirable to use a flame retardant polyester fiber.

  The textile fabric or non-woven fabric may contain at least one of an inorganic pigment, an organic pigment, and an inorganic substance.

  By doing in this way, in the state which turned off the LED lighting apparatus 1, the shape of the top | upper surface opening part 11 cannot be visually recognized. On the other hand, when the LED lighting device 1 is turned on, figures and characters corresponding to the shape of the top surface opening 11 appear on the inner surface of the door panel 49. For this reason, it can utilize as illumination for decoration of a car.

  At the same time, light is emitted from the side opening 15. The light emitted from the side opening 15 can illuminate the feet under the door of the automobile.

  In addition, although it is preferable that the top | upper surface opening part 11 is covered with the interior fabric 51, the side surface opening part 15 does not need to be covered with the interior fabric 51. In this case, the light from the top surface opening 11 is extracted from the gap between the fibers of the interior fabric 51, and the light from the side surface opening 15 is directly extracted.

  In addition, when the top surface opening 11 is covered with the interior fabric 51, the shape of the top surface opening 11 is hardly visible, but even when the top surface opening 11 is not covered with the interior fabric 51, for example, If the LED lighting device 1a having the above-described colored holding plate with a predetermined light transmittance pasted on the surface as shown in FIG. 9 is attached to the top surface, the LED lighting device 1a is turned off. In such a state, the shape of the top surface opening 11 cannot be visually recognized. In this case, the holding plate 37 of the LED lighting device 1a is visually recognized as a part of the interior material of the automobile. On the other hand, when the LED lighting device 1 a is turned on, a figure or a character corresponding to the shape of the top surface opening 11 can be raised on the inner surface of the door panel 49.

  As described above, when the LED light source 19 is turned on without turning on the LED light source 19 and the LED light source 19 is turned on, the design of the top surface opening 11 becomes visible. It is possible to obtain an LED lighting device mounting structure excellent in the above.

  Note that the turning on and off of the LED light source 19 can be linked to the opening and closing operation of the door. For example, a switch may be arranged on the door so that the LED light source 19 is turned off when the door of the automobile is closed, and the LED light source 19 is turned on when the door of the automobile is opened.

  Next, the LED lighting device mounting structure 50 will be described in more detail. FIG. 15A is a cross-sectional view showing the LED lighting device mounting structure 50. The LED lighting device 1 is fixed to the resin molding structure 53 in the door panel. In the illustrated example, a light transmission plate 45 is bonded to the outer surface side of the top surface 5 of the frame of the LED lighting device 1. Instead of the light transmission plate 45, a film 35 or the like may be attached to the light transmission member 47, the holding plate 37, or the holding plate. That is, as a light-transmitting member that is attached to the top surface 5, any member that is transparent or colored may be used. In the following description, an example using the light transmission plate 45 will be described.

  A fixing portion 55 is formed on the light transmission plate 45 so as to protrude outward from the frame of the LED lighting device 1. That is, the light transmission plate 45 is larger than the size of the top surface 5. In the illustrated example, the fixing portions 55 are formed on the side surface 9a side and the side surface 9b side of the LED lighting device 1, respectively.

  An attachment hole 57 is formed in the fixing portion 55. That is, the light transmission plate 45 is a plate-like member having a fixing portion with a mounting hole. When the LED lighting device 1 is disposed with respect to the resin molded structure 53, a female screw portion is formed at a portion corresponding to the mounting hole 57 of the resin molded structure 53. Accordingly, the LED lighting device 1 can be fixed to the resin molding structure 53 by inserting the screw 59 into the mounting hole 57. That is, the LED lighting device 1 is fixed to the resin molding structure 53 with screws 59 (or bolts) using the mounting holes 57 formed in the light transmission plate 45.

  In addition, the resin molding structure 53 has an opening corresponding to the top surface opening 11 and can radiate light from the top surface opening 11 into the vehicle. Similarly, the resin molding structure 53 has an opening corresponding to the side opening 15 and can irradiate light from the side opening 15 downward to the door panel.

  Thus, the resin molding structure 53 of the door panel 49 corresponds to the top surface opening 11 and the side surface opening 15 of the LED lighting device 1 at the mounting position of the LED lighting device 1 to the resin molding structure 53. Have different openings. Further, the LED lighting device 1 is attached to the resin molding structure 53 such that the top surface opening 11 and the side surface opening 15 coincide with the opening of the resin molding structure 53. At this time, the opening corresponding to the top surface opening 11 of the resin molded structure 53 is covered with the interior fabric 51. On the other hand, the opening corresponding to the side opening 15 may be covered with the interior fabric 51 or may not be covered.

  In the LED lighting device mounting structure 50, the screw 59 or the like may not be used. For example, as shown in FIG. 15B, a pin standing on the resin molded structure 53 may be used. The pins are provided on the resin molded structure 53 and project toward the LED lighting device 1 side. The pins are formed at portions corresponding to the mounting holes 57 of the resin molded structure 53 when the LED lighting device 1 is disposed with respect to the resin molded structure 53. Therefore, the pin can be inserted into the mounting hole 57.

  In this state, the head 61a having a large diameter can be formed by heating and melting the end of the pin. As described above, the fixing portion 55 of the light transmission plate 45 may be mechanically fixed to the resin molding structure 53 by the fixing pin 61 formed by heating and melting the head portion 61a, or the fixing portion 55 may be fixed to the fixing portion 55. The head 61a of the fixing pin 61 may be heat-sealed. Therefore, the LED lighting device 1 can be fixed to the resin molding structure 53 by the fixing pin 61 having the head 61a.

  Next, another LED lighting device mounting structure will be described. Fig.16 (a) is sectional drawing which shows the LED lighting apparatus attachment structure 50a. The LED lighting device mounting structure 50a has substantially the same configuration as the LED lighting device mounting structure 50, but the structure of the fixing portion 55 is different.

  In the LED illumination device mounting structure 50 a, the light transmission plate 45 is the same size as the top surface 5. An L-shaped member 44 having an L-shaped cross section is bonded to the side surfaces 9a and 9b. Note that the upper surface of the L-shaped member 44 (the surface on the resin molding structure 53 side) is substantially flush with the upper surface of the light transmission plate 45.

  An end portion of the L-shaped member 44 projects in a flange shape outward from the top surface of the frame, and this portion serves as a fixing portion 55. As described above, the fixing portion 55 is provided with the attachment hole 57. Screws 59 (or bolts) are inserted into the mounting holes 57, and the LED lighting device 1 is fixed to the resin molded structure 53 with the screws 59 (or bolts).

  The LED lighting device mounting structure 50a may also be fixed by fixing pins 61 provided on the resin molded structure 53, as shown in FIG. That is, the head 61a having a large diameter can be formed by inserting the pin through the mounting hole 57 and heating and melting the end of the pin in this state. As described above, the fixing portion 55 at the end of the L-shaped member 44 may be mechanically fixed to the resin molding structure 53 by the fixing pin 61 formed by heating and melting the head 61a, or fixed. The head portion 61 a of the fixing pin 61 may be heat-sealed to the portion 55. Therefore, the LED lighting device 1 can be fixed to the resin molding structure 53 by the fixing pin 61 having the head 61a.

  Next, the LED lighting device mounting structure 50b will be described. FIG. 17A is a cross-sectional view showing the LED lighting device mounting structure 50b. The LED lighting device mounting structure 50b has substantially the same configuration as the LED lighting device mounting structure 50a, but differs in that a window member 12 is provided instead of the light transmission plate 45.

  In this case, the upper surface of the L-shaped member 44 (the surface on the resin molding structure 53 side) is substantially the same as the upper surface of the top surface 5. An end portion of the L-shaped member 44 protrudes outward from the frame body, and this portion becomes a fixing portion 55. As described above, the fixing portion 55 is provided with the attachment hole 57. Screws 59 (or bolts) are inserted into the mounting holes 57, and the LED lighting device 1 is fixed to the resin molded structure 53 with the screws 59 (or bolts).

  The LED lighting device mounting structure 50b may also be fixed by fixing pins 61 provided on the resin molded structure 53 as shown in FIG. That is, by inserting the pin through the mounting hole 57 and heating and melting the end of the pin in this state, the head 61a having a large diameter can be formed and fixed. As described above, the fixing portion 55 at the end of the L-shaped member 44 may be mechanically fixed to the resin molding structure 53 by the fixing pin 61 formed by heating and melting the head 61a, or fixed. The head portion 61 a of the fixing pin 61 may be heat-sealed to the portion 55. Therefore, the LED lighting device 1 can be fixed to the resin molding structure 53 by the fixing pin 61 having the head 61a.

  Next, the LED illumination device mounting structure 50c will be described. FIG. 18A is a cross-sectional view showing the LED lighting device mounting structure 50c. The LED lighting device mounting structure 50c has substantially the same configuration as the LED lighting device mounting structure 50b, but the fixing portion 55 is formed of a plate-like member, so that the shape of the fixing portion 55 is different.

  In the LED lighting device mounting structure 50 c, the plate member 42 is bonded to the top surface 5. The end portion of the plate-like member 42 protrudes outward from the frame body, and the vicinity of the end portion of the plate-like member 42 becomes the fixed portion 55. As described above, the fixing portion 55 is provided with the attachment hole 57. Screws 59 (or bolts) are inserted into the mounting holes 57, and the LED lighting device 1 is fixed to the resin molded structure 53 with the screws 59 (or bolts).

  The LED lighting device mounting structure 50c may also be fixed by fixing pins 61 provided on the resin molded structure 53 as shown in FIG. That is, the fixing pin 61 is inserted into the mounting hole 57, and in this state, the end portion of the fixing pin 61 is heated and melted, whereby the head 61a having a large diameter can be formed and fixed. As described above, the head 61a may be mechanically fixed to the fixing portion 55 formed in the vicinity of the end portion of the plate-like member 42 by the fixing pin 61 formed by heating and melting, or may be fixed to the fixing portion 55. The head 61a of the fixing pin 61 may be heat-sealed. Therefore, the LED lighting device 1 can be fixed to the resin molding structure 53 by the fixing pin 61 having the head 61a.

  Next, the LED illumination device mounting structure 50d will be described. FIG. 19A is a cross-sectional view showing the LED illumination device mounting structure 50d. The LED lighting device mounting structure 50d has substantially the same configuration as the LED lighting device mounting structure 50, but the form of the fixing portion 55 is different.

  In the LED illumination device mounting structure 50d, a flange portion 63 is formed toward the outer peripheral direction at the upper end portions of at least two side surfaces 9a and 9b of a substantially rectangular parallelepiped frame body having a bottom surface and four side surfaces opened at the top. . Of course, the flange part 63 may be formed in the outer peripheral direction in the upper end part of four side surface 9a, 9b, 9c, 9d of a frame. The top surface 5 having a shape matching the shape of the side opening and the flange portion of the upper end of the frame including the flange 63 is bonded to the flange 63 of the substantially rectangular parallelepiped frame. That is, the frame of the LED lighting device 1 is formed by attaching the top surface 5 to the flange portion 63.

  The flange portion 63 and the top surface 5 projecting outward from the frame body become the fixing portion 55. That is, the top surface 5 and the flange portion have shapes corresponding to each other, and the attachment hole 57 is provided at a position corresponding to the top surface 5 and the flange portion. As described above, the fixing portion 55 is provided with the attachment hole 57. Screws 59 (or bolts) are inserted into the mounting holes 57, and the LED lighting device 1 is fixed to the resin molded structure 53 with the screws 59 (or bolts). As described above, a frame having a substantially rectangular parallelepiped shape in which a flange portion is formed at the upper end portion of at least two of the four side surfaces, the upper end portion of the frame body including the opening portion and the flange portion of the frame body. A flanged LED lighting device having a top surface that matches the shape is obtained.

  The LED lighting device mounting structure 50d may also be fixed by fixing pins 61 provided on the resin molded structure 53 as shown in FIG. That is, the fixing pin 61 is inserted into the mounting hole 57, and in this state, the end portion of the fixing pin 61 is heated and melted, whereby the head 61a having a large diameter can be formed and fixed. As described above, the fixing portion 55 formed on the top surface 5 and the flange portion 63 may be mechanically fixed to the resin molding structure 53 by the fixing pin 61 formed by heating and melting the head portion 61a. Alternatively, the head portion 61 a of the fixing pin 61 may be heat-sealed to the fixing portion 55. Therefore, the LED lighting device 1 can be fixed to the resin molding structure 53 by the fixing pin 61 having the head 61a.

  Next, the LED illumination device mounting structure 50e will be described. FIG. 20A is a cross-sectional view showing the LED lighting device mounting structure 50e, and FIG. 20B is a view taken in the direction of the arrow X in FIG. FIG. 21 (a) is an enlarged view of the Y part in FIG. 20 (a). Unlike the LED lighting device mounting structure 50 and the like, the LED lighting device mounting structure 50e is not provided with the fixing portion 55.

  The resin molded structure 53 is formed with a wall portion so as to sandwich the LED lighting device 1, and a recess 67 is provided on the inner surface of the wall portion (a surface facing the side surfaces 9 a and 9 b of the LED lighting device 1). Claws 65 are formed on the outer surfaces of the side surfaces 9a and 9b corresponding to the recesses 67. The claw 65 protrudes obliquely outward from the top surface 5 side toward the bottom surface 7 side.

  When the LED lighting device 1 is pushed in between the wall portions of the resin molding structure 53 from the back side of the resin molding structure 53, the claw 65 is pushed in a deformed state so as to be in close contact with the side surfaces 9a and 9b. Further, when the LED lighting device 1 is pushed in until the top surface 5 comes into close contact with the resin molded structure 53, the claw 65 moves to the position of the recess 67 and the claw 65 opens at the recess 67. Therefore, the LED lighting device 1 is fixed to the resin molded structure 53 by fitting the claw 65 into the recess 67.

  In addition, as shown in FIG.21 (b), it may replace with the nail | claw 65 and may form the protrusion 65a. Even in this case, the protrusion 65 a can be fitted into the recess 67, and the LED lighting device 1 can be fixed to the resin molded structure 53.

  Next, the LED illumination device mounting structure 50f will be described. FIG. 22 is a cross-sectional view showing the LED lighting device mounting structure 50f. The LED lighting device mounting structure 50f has substantially the same configuration as the LED lighting device mounting structure 50e, but the form of the resin molding structure 53 is different.

  In the present embodiment, as described above, the concave portion 67 is provided in one wall portion of the resin molding structure 53 on the side surface 9a side, and the claw 65 provided on the side surface 9a is fitted. On the other hand, the wall portion on the side surface 9b side is formed to be folded toward the bottom surface 7 side. Therefore, the claw 65 is not provided on the side surface 9 b and is held by the wall portion of the resin molded structure 53.

  An opening is formed in the resin molded structure 53 at a portion corresponding to the side opening 15. For this reason, the light from the side opening 15 can be irradiated downward from the opening of the resin molded structure 53.

  As described above, the LED lighting device 1 and the resin molded structure 53 may be fixed by any method. For example, in addition to the above-described embodiments, fixing by a fastener, fixing by a double-sided adhesive tape or an adhesive may be used. That is, the LED lighting device 1 and the resin molding structure 53 are fixed by, for example, fixing by screws 59, fixing by fitting projections such as the claws 65 and the protrusions 65a and the recesses 67, fixing by fasteners, and resin molding structure. Either fixing by mechanical means by deformation of the head 61a of the fixing pin 61 formed on the body 53, fixing by heat fusion with the fixing pin 61, or fixing by a double-sided adhesive tape or an adhesive. These means can be selected.

  As mentioned above, although embodiment of this invention was described referring an accompanying drawing, the technical scope of this invention is not influenced by embodiment mentioned above. It is obvious for those skilled in the art that various modifications or modifications can be conceived within the scope of the technical idea described in the claims, and these are naturally within the technical scope of the present invention. It is understood that it belongs.

  For example, it goes without saying that the embodiments described above can be combined with each other. In addition, the lighting device applicable to the present invention includes a lighting device having a frame having a flange portion formed by bending the upper end portion of the side surface in the outer peripheral direction and a top surface having a shape matching with the flange portion. There is also a lighting device having a frame whose surface is not flat, for example, a part of the outer peripheral surface having a slightly protruding surface shape such that the top surface slightly protrudes from one side surface to the other side surface. Shall be included.

1, 1a, 1b, 1c, 1d ......... LED lighting device 3, 3a ......... Frame 5 ......... Top surface 7 ......... Bottom surface 9a, 9b, 9c, 9d ......... Side surface 11 ......... Top Surface opening 12 ... Window material 13 ... Top surface shielding part 13a ... Peripheral shielding part 13b ... Inter-opening shielding part 13c ... ... Opening shielding part 15 ... Side opening 17 ... ...... Side shield 19 ...... LED light source 21 ...... Light guide space 23 ...... Slope 25 ...... Flexible flat circuit 26 ...... Flexible flat light source 27 ...... Wiring circuit 29 …… Conductor member 31 a , 31b ......... Notches 33, 33a ... Reflector 35 ... ... Film 37 ... ... Holding plate 39 ... ... External frame 41 ... ... LED substrate 42 ... ... Plate-like member 43 ... ... Metal thin film 44 .... L-shaped member 45 .... Light transmission plate 47 .... Light transmission member 49. ...... Door panels 50, 50a, 50b, 50c, 50d, 50e, 50f ......... LED lighting device mounting structure 51 ......... Interior fabric 53 ......... Resin molding structure 55 ......... Fixing portion 57 ......... Mounting Hole 59 ... Screw 61 ... Fixing pin 61a ... Head 63 ... Flange 65 ... Claw 65a ... Projection 67 ... Recess

Claims (25)

In the LED lighting device having a substantially rectangular parallelepiped frame composed of a bottom surface, a top surface, and four side surfaces surrounding an outer periphery of the bottom surface and the top surface,
The frame body is formed of a reflective plate made of a micro foam resin, and one or more LED light sources are provided on one side surface of the frame body, and the LED light source is disposed on the other side surface facing the one side surface. The top surface is formed by a top surface shielding portion and a plurality of top surface opening portions for light extraction that are separated from each other, and the other side surface is a side surface shielding portion. And a plurality of side surface openings. The frame body is formed by a reflector except for the top surface opening and the side surface openings, and the inner surface of the frame body transmits the light from the LED light source. Forming a light guide space for guiding light to the surface opening and the side opening;
The LED lighting device is mounted on a door panel of an automobile, and light is extracted from the top surface opening portion toward the inner surface direction of the door panel, and from the side surface opening portion toward the lower side of the door panel. A structure for mounting an LED lighting device, wherein light can be extracted from the formed opening.   The door panel has a resin molded structure, the opening formed in the door panel is an opening formed in the resin molded structure, and the opening formed in the resin molded structure is the ceiling. Two separate openings formed so as to correspond to the surface opening and the side opening, and the top opening and the side opening are aligned with the opening of the resin molding structure. The LED lighting device mounting structure according to claim 1, wherein the LED lighting device is disposed in a resin molded structure.   The top surface opening and the side surface opening are covered with an interior fabric made of either a textile fabric or a non-woven fabric that covers the resin molded structure of the door panel, and from the top surface opening and the side surface opening. 3. The LED lighting device mounting structure according to claim 1, wherein the light is extracted from a gap between fibers of the interior fabric. 4. The top surface opening is covered with an interior fabric made of either a textile fabric or a non-woven fabric covering the resin molded structure of the door panel, and light from the top surface opening is a fiber of the interior fabric. The light from the side opening is directly extracted without being taken out from the gap, and the side opening is not covered with the interior fabric. Mounting structure of LED lighting device.   The top surface opening is formed in one or a plurality of figures or characters, and the LED lighting device is a decorative illumination that can visually recognize the one or more figures or characters from the outside. The LED lighting device mounting structure according to any one of claims 1 to 4, wherein the LED lighting device mounting structure is provided.   The fibers constituting the fiber woven fabric or the nonwoven fabric are polyester-based, flame-retardant polyester-based, polyphenylene ether-based, polypropylene-based, polyamide (nylon) -based, polyacrylonitrile-based, polyvinyl chloride-based, polyvinylidene chloride-based synthetic fibers, The cellulose-based, protein-based semi-synthetic fiber, rayon-based, special rayon-based, or cupra regenerated fiber is included, or these fibers are used in combination. Item 5. An LED illumination device mounting structure according to Item 4.   7. The LED lighting device mounting structure according to claim 6, wherein the fiber woven fabric or the non-woven fabric contains at least one of an inorganic pigment, an organic pigment, and an inorganic substance.   The micro-foamed resin of the reflection plate has an optical reflectance in the visible light band of a wavelength of 450 to 650 nm, a light reflectance when using an aluminum oxide standard piece, a total reflectance of 95% or more, and a diffuse reflectance of 95. The LED illumination device mounting structure according to claim 1, wherein the LED illumination device mounting structure is at least%.   Either the one side surface and the other side surface are formed at a right angle or an acute angle with respect to the bottom surface, or the side surface shielding portion and the side surface opening are formed at a right angle or an acute angle with respect to the bottom surface. The LED illumination device mounting structure according to claim 1, wherein the LED lighting device is attached.   The side opening is rectangular, and the side opening is integrally and continuously formed in an L shape so as to extend from the side to the bottom connected to the side, or connected to the side and the side. The connecting portion of the bottom surface is provided with an inclined surface that is obliquely connected to both in a chamfered shape, and the side opening is continuously formed so as to extend from the side surface to the inclined surface. The attachment structure of the LED lighting apparatus in any one of Claims 1-9.   11. The LED according to claim 1, wherein a light transmissive window member is attached to at least one of the top surface opening and the side surface opening. Mounting structure of lighting device.   12. The LED lighting device mounting structure according to claim 11, wherein the window material is made of at least one of an acrylic resin, a PET resin, a PC resin, a light-transmitting resin, or a glass material.   Of the window material, the window material attached to the top surface opening is a light transmissive member made of a colored resin or glass material, and the colored light can be taken out from the window material of the top surface opening. The LED lighting device mounting structure according to claim 11 or 12, wherein white or daylight color, which is an emission color of the LED light source, can be taken out from the side opening. .   Among the window materials, as a window material of the top surface shielding portion, a light transmissive member constituted by a metal thin film or a colored film that transmits light and a light transmissive plate that holds them is in close contact with the top surface shielding portion. The LED lighting device mounting structure according to claim 11, wherein the LED lighting device is attached so as to adhere.   The LED lighting device mounting structure according to any one of claims 1 to 14, wherein the LED lighting device is housed in an outer frame body from which light can be extracted.   The LED illuminating device is housed in an outer frame body from which light can be extracted. The outer frame body is formed of a light transmissive member, and the top surface opening of the outer frame body is colored. The LED illumination device mounting structure according to any one of claims 1 to 15, wherein the LED illumination device is formed of a light transmissive member or a transparent light transmissive member having a colored film stretched thereon.   The LED lighting device is a machine using a fixing pin having a head formed by deforming a pin formed on the resin-molded structure, fixing by a screw, fixing by fitting a protrusion and a recess, fixing by a fastener Fixed to the resin-molded structure by fixing means such as fixing by thermal fusion of fixing pins for fixing the resin-molded structure, or by fixing with a double-sided adhesive tape or adhesive. The LED lighting device mounting structure according to any one of claims 2 to 4, wherein the LED lighting device is fixed to the resin molded structure by a combination of any of the means.   A light transmissive plate or a holding plate is bonded to the outer surface side of the top surface of the frame body, and at least the light transmissive plate or the holding plate has an attachment hole so as to protrude outward of the frame body. The LED lighting device is fixed to the resin molding structure with screws or bolts in the mounting hole formed in the light transmission plate or the holding plate, or provided in the resin molding structure. The fixed pin is inserted into the mounting hole and fixed to the resin molding structure with a fixing pin having a head formed by deforming the pin. The mounting structure of the LED lighting device according to any one of claims 2 to 4.   An L-shaped member having a L-shaped cross section that protrudes in a flange shape toward the outside of the top surface of the frame body is provided on the side surface of the frame body, and the L-shaped member has an attachment hole. The LED lighting device is fixed to the resin molded structure with a screw or a bolt at the mounting hole, or a pin provided on the resin molded structure is mounted on the mounting hole. Either of the claims 2 to 4, wherein the pin is fixed to the resin molding structure with a fixing pin having a head formed by being inserted and deforming the pin. A mounting structure of the LED lighting device according to the above.   A plate-like member having a fixing portion with a mounting hole is attached to a position of the top surface shielding portion that does not hinder light extraction, and the LED lighting device has the resin molding structure with a screw or a bolt at the mounting hole. Fixed to the body, or fixed to the resin molding structure with a fixing pin having a head formed by deforming the pin through which a pin provided in the resin molding structure is inserted into the mounting hole The mounting structure of the LED lighting device according to any one of claims 2 to 4, wherein the mounting structure is an LED lighting device.   A flange portion is formed in an outer peripheral direction at an upper end portion of at least two side surfaces of the frame body, and the frame body is formed by attaching the top surface to the flange portion, and the top surface and the top surface Mounting holes are provided at positions corresponding to each other of the flange portions, and the mounting holes are fixed to the resin molding structure with screws or bolts, or pins provided on the resin molding structure are the mounting holes. 5. Any one of claims 2 to 4, wherein the pin is fixed to the resin molded structure with a fixing pin having a head formed by deforming the pin. A structure for mounting the LED lighting device according to claim 1.   A claw or a projection is provided on the outer periphery of the side surface, the top surface or the bottom surface of the frame body, and the claw or projection is fitted into a recess formed in the resin molded structure, and the LED lighting device The LED lighting device mounting structure according to any one of claims 2 to 4, wherein is fixed to the resin molded structure.   23. The top surface opening is visible when the LED light source is turned on without turning on the LED light source in a state where the LED light source is not turned on. The mounting structure of the LED lighting apparatus in any one.   The LED light source is mounted on a flexible flat circuit or a plurality of LED substrates at a predetermined interval, and a cutout portion is formed on the one side surface of the frame body in accordance with the shape and arrangement of the light emitting portion of the LED light source. The flexible flat circuit or the LED substrate is formed on the outer surface side of the one side surface, and the light emitting surface of the LED light source is exposed to the light guide space from the notch. 24. A mounting structure of the LED lighting device according to any one of 23. The LED light source mounting structure according to any one of claims 1 to 24, wherein the LED light source is turned off when the door of the automobile is closed, and is turned on when the door of the automobile is opened.

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