JP2010040269A - Illuminating device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an illuminating device capable of preventing occurrence of reduction, unevenness of light volume and a shadow in a light emitting face. <P>SOLUTION: A rectangular reflection sheet 22 is arranged on a face of a substrate 7 where an LED is mounted. On the reflection 22, there is formed an opening part of a little larger dimension than a plane face of the LED so as to match the position where the LED is arranged, and the reflection sheet 22 is adhered tight with the substrate 7 with the LED positioned inside the opening part. Furthermore, a curved part 221 is arranged on a side of the reflection face along with one circumference of the reflection sheet 22. The curved part 221 makes a space between the substrate 7, and a substrate connector 20 and a wiring 21, as a wiring part, can be accommodated in the space. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a lighting device including a substrate on which a light source is mounted and a reflecting portion.

  In recent years, an illuminating device using a light emitting diode as a light source has been developed in place of a fluorescent lamp or an incandescent lamp because it is excellent in power saving and long life. Such an illumination device has a structure in which a substrate on which a plurality of light emitting diodes (LEDs) are mounted is attached to the bottom surface of the lamp housing.

For example, a lighting fixture is disclosed in which a plurality of LEDs are arranged on a substrate, and surface emission is realized by diffusing light emitted from the LEDs with a diffusion plate (see Patent Document 1).
JP 2002-33006 A

  However, in the lighting fixture disclosed in Patent Document 1, a wiring for connecting the power supply unit for supplying power to the LED and the substrate is necessary, and when surface emission is realized by a plurality of substrates, Wiring for connecting the substrates is also required. In addition, these wirings are connected to the surface of the substrate on which the LEDs are mounted in order to facilitate attachment and reduce the cost of the substrate. In this case, when the lamp is attached to the installation surface such as the ceiling, the wiring is bent by its own weight and a part of the wiring is drooped, and the light irradiated from the LED is blocked by the drooping wiring, and the light amount is reduced. There was a problem that shadows were generated on the light emitting surface due to non-uniformity and wiring.

  The present invention has been made in view of such circumstances, and an object of the present invention is to provide an illuminating device that can prevent a light amount from being reduced, uneven, or shadowed on a light emitting surface.

  The illuminating device according to the present invention is a lighting device in which a light source is mounted on a substrate, and includes a reflective portion on a side of the substrate where the light source is mounted, and the reflective portion covers a wiring portion disposed on the substrate. It is comprised by these.

  The illuminating device according to the present invention is characterized in that the reflecting portion is provided with a space for accommodating the wiring portion between the reflecting portion and the substrate.

  In the illumination device according to the present invention, the reflecting portion includes a bent portion obtained by bending a part of the reflecting portion to the side opposite to the substrate, and the wiring portion is accommodated in a space between the bent portion and the substrate. It is comprised so that it may carry out.

  The lighting device according to the present invention is characterized in that the curved portion is provided at a part of the periphery of the reflecting portion.

  The illumination device according to the present invention is characterized in that the curved portion is formed by bending or bending a part of the reflecting portion.

  The lighting device according to the present invention is characterized in that the wiring section includes at least one of a connector provided on the substrate or a wiring connected to the connector.

  In the illumination device according to the present invention, the light source is a light emitting diode.

  In the present invention, the illuminating device attaches a reflective portion to the surface of a substrate on which a plurality of light emitting diodes are mounted, and covers a wiring portion (for example, a wiring or a connector) disposed on the substrate. Since the reflection part covers the wiring part, the wiring part does not sag, and light emitted from the light emitting diode is reflected by the reflection part and does not irradiate the wiring part. There is nothing. As a result, it is possible to prevent the light amount from being reduced, non-uniformly, or shadowed on the light emitting surface.

  In the present invention, in the lighting device, the reflecting part is provided with a space for accommodating the wiring part between the reflecting part and the substrate. As a result, the wiring part can be covered and hidden by the reflection part when viewed from the light emitting surface, the influence of the wiring part can be removed, and the light quantity on the light emitting surface can be prevented from being reduced, uneven or shadowed. can do.

  In the present invention, the lighting device includes a curved portion obtained by bending a part of the reflecting portion to the opposite side of the substrate, and accommodates the wiring portion in a space between the curved portion and the substrate. As a result, the wiring part can be covered and hidden by the reflection part when viewed from the light emitting surface, the influence of the wiring part can be removed, and the light quantity on the light emitting surface can be prevented from being reduced, uneven or shadowed. can do.

  In the present invention, the curved portion is provided at a part of the periphery of the reflecting portion. Thereby, a wiring part can be arrange | positioned in the periphery of a reflection part, and the influence of a wiring part can be removed, without impairing the function to reflect the light irradiated from LED.

  In the present invention, the curved portion is formed by bending or bending a part of the reflecting portion. Thereby, according to the magnitude | size, shape, etc. of a wiring part, a wiring part can be covered.

  In the present invention, the wiring portion includes at least one of a connector provided on the substrate or a wiring connected to the connector. Thereby, the influence by the connector and / or wiring which are provided on a board | substrate is removable.

  In the present invention, the light source is a light emitting diode.

  According to the present invention, it is possible to prevent the light amount on the light emitting surface from being reduced, nonuniform, or causing shadows.

  According to the present invention, even if the light source is a directional light emitting diode, it is possible to prevent the light amount from being reduced, nonuniformity, or shadowing on the light emitting surface.

Embodiment 1
Hereinafter, the present invention will be described with reference to the drawings illustrating embodiments thereof. FIG. 1 is a schematic assembly perspective view of a lighting device 100 according to the present invention, FIG. 2 is a schematic exploded perspective view of the lighting device 100 according to the present invention, and FIG. 3 is a view from the light source side of the lighting device 100 according to the present invention. FIG. 4 is a schematic plan view seen, FIG. 4 is a schematic cross-sectional view cut along line AA in FIG. 3, and FIG. 5 is a schematic cross-sectional view cut along line BB in FIG.

  Note that the lighting device 100 of Embodiment 1 is an elongated lighting device. In the following description, as indicated by the arrows in FIG. 5, the upward direction of the lighting device 100 indicates the direction attached to the ceiling surface, and the lower side. The direction is used for convenience to indicate the direction of irradiation. The same applies to the vertical direction used in the description of the casing constituting the lighting device 100. FIG. 1 shows a state in which a reflection sheet 22, a protective plate 13, and the like serving as a reflection section to be described later are removed.

  The lighting device 100 according to Embodiment 1 has an elongated shape, and a housing 2 (hereinafter referred to as “a housing 2 that houses the LED 12”) that houses a light emitting diode (hereinafter referred to as “LED 12”) as a light source. Is referred to as “illumination case 2”), and a housing 3 that houses a power supply circuit section that supplies current to the LEDs 12 (hereinafter, “casing 3 that houses the power supply circuit section” is referred to as “power supply case 3”). The lighting case 2 and the power supply case 3 are provided as separate bodies and have a locking structure that can be attached to and detached from each other.

  The power supply case 3 can be attached to the ceiling surface with a bolt or the like on the top surface, and the power supply circuit unit housed in the power supply case 3 is a power line from an external power supply (not shown) disposed on the back of the ceiling. Connected. The lighting case 2 is locked to the power supply case 3.

  A plurality of LEDs 12 are mounted on the surfaces of a plurality of substrates 7 housed in the lighting case 2, and are connected to the substrate connector 20 mounted on the substrate 7 and the wiring 21 connected to the substrate connector 20 from the power supply circuit unit. Electric power is supplied to the LED 12. The power supply circuit unit converts an AC voltage supplied from an external power source into a predetermined DC voltage. Thereby, the illuminating device 100 can perform surface emission illumination with the light irradiated from LED12. In the present embodiment, four substrates are shown as an example, but the number of substrates 7 is not limited to this.

  Next, components such as the lighting case 2 and the LED 12 housed in the lighting case 2 will be described. The lighting case 2 is made of a metal that is lightweight and has good heat dissipation, and is made of, for example, aluminum, and has a concave portion 6 that is a groove that has a bent portion with the bottom surface 4 and has a tip that is divided into two along the longitudinal direction. It is an elongate substantially rectangular parallelepiped shape (bowl shape) provided with the side surface 5 formed. Moreover, the illumination case 2 has an opening part in the side facing the both ends and bottom face of a short side.

  The bottom surface 4 of the lighting case 2 is provided with a plurality of substrate mounting holes 8 for mounting a plurality of LEDs 12, for example, a plurality of substrates 7 mounted in a matrix, and the four substrates 7 are made of screws or the like on the bottom surface. A substrate locking member 30 is attached.

  Furthermore, rectangular power supply case attachment holes 10 for attaching the power supply case 3 and the illumination case 2 by fitting stoppers 9 as fixing parts are provided at both ends on the short side of the bottom surface 4. In addition, side covers 11 that cover openings at both ends are provided at both ends on the short side of the bottom surface 4. The side cover 11 is made of, for example, white highly reflective metal, and prevents light from leaking from the openings at both ends.

  The stopper 9 is a plate-like protrusion, and is provided in the power supply case 3 so as to be rotatable around the center of the stopper 9. The width of the plate-like stopper 9 is shorter than the long side of the rectangular power supply case mounting hole 10 and longer than the short side. Thus, after the stopper 9 is inserted into the power supply case mounting hole 10 and the lighting case 2 and the power supply case 3 are locked by the locking structure, the stopper 9 is rotated by approximately 90 degrees, thereby The case 3 can be held in a locked state. The stopper 9 may be formed integrally with the power supply case 3 or may be a separate member that can be detached from the power supply case 3.

  In addition, a protective plate 13 that protects the LED 12 is fitted into the recess 6 at the tip of the side surface 5 of the lighting case 2. The protection plate 13 protects the LED 12 from the outside and eliminates glare of light emitted from the LED 12. In the present embodiment, a milky white diffusion plate made of polycarbonate resin is used as the protective plate 13. Moreover, in order to ensure the illumination intensity of the room | chamber interior in which the illuminating device 100 is installed, the protective plate 13 may be a transparent plate of an acrylic resin, for example. The versatility of the illuminating device 100 can be improved by making it possible to select the type of the protective plate 13 according to the place where the illuminating device 100 is installed and the application.

  Further, two case latching receiving portions 14 are formed on the surface of the lighting case 2 on the side in contact with the power supply case 3 along the longitudinal direction of the lighting case 2 over the entire length of the lighting case 2. The two case locking members 14 are L-shaped in cross section viewed from the short side of the lighting device 100, and are locking openings formed by the back surface of the lighting case 2 and the L-shape of the case locking receiving portion 14. The portions 15 are formed in the same direction. The lighting case 2 and the power supply case 3 are locked to each other by fitting a case locking protrusion 16 formed on the power supply case 2 described later into the locking opening 15. Therefore, the locking structure is constituted by the case locking receiving portion 14 and the case locking protrusion 16.

  Furthermore, the holding member 17 which presses and hold | maintains components, such as the protective plate 13, from the irradiation direction side is provided in the both ends of the short side of the lighting case 2. As shown in FIG. The holding member 17 has a structure that covers the openings at both ends of the short side of the lighting case 2 and is bent so that the holding member 17 can be pressed, and has a claw portion 18 and a stopper 9 that are attached to the bottom surface 4 of the lighting case 2. Has a stopper fixing portion 19 to prevent the rotation. As shown in FIG. 5, in the present embodiment, the number of the claw portions 18 is two and can be stably held.

  Next, components such as the power supply case 3 and the power supply circuit unit housed in the power supply case 3 will be described. The power supply case 3 is a rectangular parallelepiped case made of metal such as iron, and includes a quick connection terminal 23 as a connection terminal for connecting a power line from an external power source to the power supply circuit unit inside the case. Further, the power supply circuit unit is accommodated in a metallic power supply circuit box 24 in order to ensure safety.

  The power circuit section is configured by mounting electronic components (not shown) such as a capacitor and a transformer on the power circuit board 25 and is mounted on the power circuit box 24 via an insulating sheet 26. In order to further secure insulation between the power supply circuit unit and the power supply circuit box 24, it is preferable to mold the power supply circuit unit with a resin such as silicon.

  The length in the longitudinal direction of the power supply case 3 is substantially the same as the dimension in the longitudinal direction of the lighting case 2, but the length in the short direction of the power supply case 3 is approximately half of the dimension in the short direction of the lighting case 2. It is. Therefore, for example, as shown in FIG. 5, when the power supply case 3 is attached to the back surface of the bottom surface of the lighting case 2 with the short side center aligned, the length of the short sides of the power supply case 3 and the lighting case 2 is reduced. Due to the difference, a part of the back surface of the lighting case 2 is exposed to the outside. Therefore, the back surface of the lighting case 2 made of a metal such as aluminum having high heat dissipation can be used more effectively, and the heat generated from the LED 12 can be efficiently radiated.

  The board 7 is provided with a connector 20 for connecting the wiring 21 wired from the power supply circuit section to the board 7, and the wiring 21 is wired through the power supply case mounting hole 10 of the lighting case 2. Although not shown, a lead-in hole (not shown) for drawing a power line arranged on the ceiling is provided on the ceiling-side surface of the power supply case 3, and a resin-made buffer ring ( (Not shown) is attached. Therefore, normally, a relatively thick power line having a diameter of about 16 mm to 20 mm is used as the power line. However, when the power line is drawn from the drawing hole, the burrs formed around the drawing hole in the manufacturing process of the lighting device 100 are used. It is possible to prevent the power line from being damaged by such as.

  In addition, in order to prevent damage to the power line, end face processing such as brim processing can be performed instead of attaching a resin ring to the drawing hole. The height of the power supply case 3 is preferably a size that can accommodate the power supply circuit box 24 and is designed so as to ensure a certain amount of space inside. This is because if the power supply case 2 does not have a certain height, a space for drawing the thick power line as described above from the drawing hole and bending it along the power supply case 2 cannot be secured. In the present embodiment, the height of the power supply circuit case 24 is designed to be 42 mm, corresponding to a power line having a diameter of 16 mm to 20 mm that is normally used.

  Further, in order to comply with the Electrical Appliance and Material Safety Law, in order to ensure insulation, the power circuit board 25 is required to be at least about 5 mm away from the power circuit box 24 that is from the surrounding metal parts. By sufficiently designing the height of the power supply case 3 as described above, the power supply circuit box 24 having a height for accommodating the power supply circuit board 25 with a distance of 5 mm can be provided in the power supply case 3.

  Further, the power supply circuit unit (power supply circuit box 24) may be installed in any place in the power supply case 3. However, since it is necessary to pass through the quick connection terminal 23, the power supply circuit unit (power supply circuit box 24) is installed with a certain distance from the lead-in hole. Has been. If the power supply circuit unit is provided near one end on the short side of the power supply case 3, the wiring 21 connecting the power supply circuit unit and the substrate 7 is shortened, and the lighting case 2 and the power supply case 3 are connected. Connection by the connector 28 when locked is also facilitated.

  Next, the board | substrate 7 which mounted | wore with LED12 which is a light source, and several LED12 is demonstrated in detail. The LED 12 used in the present embodiment is a pseudo white surface-mounted LED made of a blue LED and a yellow phosphor. The light emitted from the pseudo-white LED is a mixture of blue light emitted from the blue LED and yellow light emitted when the yellow phosphor is excited by the blue light from the blue LED. It feels like being irradiated.

  The substrate 7 is a printed wiring board, and a plurality of LEDs 12 are arranged in a matrix at equal intervals. Further, the substrate 7 has a wiring pattern (not shown) for energizing the plurality of LEDs 12, a limiting resistor (not shown) for passing a constant current through the LEDs 12, and a substrate for connecting the plurality of substrates 7. A connector 20 is provided. Note that two board connectors 20 are provided on each board, and two board connectors 20 are provided at the end of one side of the board 7. Then, the wiring 21 from the power supply circuit unit and the wiring 21 connecting the substrates 7 are arranged along the edge of the substrate 7 and connected to the substrate connector 20 on the substrate 7. The board connector 20 and the wiring 21 constitute a wiring part of the present invention.

  Further, a rectangular reflection sheet 22 as a reflection portion is provided on the surface of the substrate 7 on which the LED 12 is mounted. The reflection sheet 22 is formed with an opening having a size slightly larger than the planar shape of the LED 12 in accordance with the position where the LED 12 is disposed. By disposing the LED 12 in the opening, the reflection sheet 22 is placed on the substrate 7. Close to Moreover, as a material of the reflection sheet 22, for example, a polyethylene terephthalate (PET) film can be used. Thereby, the light irradiated (emitted) from the LED 12 can be prevented from being reflected by the reflection surface of the reflection sheet 22 without being absorbed by the substrate 7 and reducing the amount of light irradiated.

  Moreover, the curved part 221 is provided in the reflective surface side along the periphery of one side of the reflective sheet 22. FIG. The curved portion 221 is provided with a space between the board 7 and the board connector 20 and the wiring 21 as wiring portions can be accommodated in the space. The reflection sheet 22 provided with the curved portion 221 covers the wiring portion (for example, the wiring 21 and the substrate connector 20) disposed on the substrate and can hide the wiring portion when viewed from the light emitting surface. The light does not sag, and the light emitted from the LED 12 is reflected by the reflection sheet 22 and is not applied to the wiring part, so that no shadow is generated by the wiring part. As a result, it is possible to prevent the light amount from being reduced, non-uniformly, or shadowed on the light emitting surface.

  FIG. 6 is a cross-sectional view of the main part showing an example of the structure of the curved portion 221 of the present embodiment. As shown in FIG. 6, the edge of the reflection sheet 22 provided in close contact with the substrate 7 is bent toward the reflection surface side (bent so as to form an acute angle with respect to the surface of the substrate 7). A space 50 for accommodating the board connector 20 and the wiring 21 (not shown) is provided between the reflection sheet 22 and the reflection sheet 22. In addition, the structure of the music part 221 is not limited to the example of FIG. 6, Other structures (structure) may be sufficient.

  FIG. 7 is a cross-sectional view of the main part showing another example of the structure of the curved portion 221. As shown in FIG. 7, the edge of the reflection sheet 22 provided in close contact with the substrate 7 is bent so that the reflection surface side is substantially perpendicular to the substrate 7, and the edge of the reflection sheet is further parallel to the substrate 7. Is bent (substantially S-shaped) to provide a space 50 for accommodating the board connector 20 and the wiring 21 (not shown) between the board 7 and the reflection sheet 22.

  FIG. 8 is a cross-sectional view of the main part showing another example of the structure of the curved portion 221. As shown in FIG. 8, the board connector 20 is provided between the board 7 and the reflection sheet 22 by curving the edge of the reflection sheet 22 provided in close contact with the board 7 in a substantially arc shape toward the reflection surface. And a space 50 for accommodating the wiring 21 (not shown). By using these structures, the board connector 20 and the wiring 21 can be covered up according to the shape and size of the board connector 20, the wiring amount of the wiring 21, and the like.

  FIG. 9 is a plan view of a principal part showing an example of the structure of the curved portion 221 of the present embodiment. As shown in FIG. 9, in the lighting device 100 according to the present invention, four rectangular reflection sheets 22 are arranged in a line in accordance with the arrangement of the substrate 7, and one side in the longitudinal direction of each reflection sheet 22. A curved portion 221 is provided on the periphery of the plate. Thereby, the board connector 20 and the wiring 21 can be disposed on the periphery of the reflection sheet 22, that is, the board 7, and the influence of the wiring part can be removed without impairing the function of reflecting the light emitted from the LED 12. it can. It should be noted that the location where the curved portion 221 is provided on the reflection sheet 22 can be appropriately changed depending on the location on the substrate 7 where the board connector 20 and the wiring 21 are provided.

  FIG. 10 is a plan view of an essential part showing another example of the structure of the curved part 221. FIG. As shown in FIG. 10, when four rectangular reflection sheets 22 are arranged in one row in accordance with the arrangement of the substrate 7, for example, a curved portion is formed at the periphery of both sides in the longitudinal direction of each reflection sheet 22. 221 can also be provided. Thereby, the board connector 20 and the wiring 21 can be disposed on the periphery of the reflection sheet 22, that is, the board 7, and the influence of the wiring part can be removed without impairing the function of reflecting the light emitted from the LED 12. it can.

  FIG. 11 is a plan view of a principal part showing another example of the structure of the curved portion 221. FIG. As shown in FIG. 11, when the rectangular reflection sheets 22 are arranged in a matrix in four rows and two columns according to the arrangement of the substrate 7, they are adjacent to each other with the corners of the reflection sheets 22 interposed therebetween. A curved portion 221 can be provided on the periphery of the two sides. Thereby, the board connector 20 and the wiring 21 can be disposed on the periphery of the reflection sheet 22, that is, the board 7, and the influence of the wiring part can be removed without impairing the function of reflecting the light emitted from the LED 12. it can.

  The configuration of the lighting device 100 according to the present embodiment has been described above. Next, a method for attaching the lighting device 100 to the ceiling including the method for locking the lighting case 2 and the power supply case 3 will be described. First, a power line arranged on the ceiling is drawn into the drawing hole, and the power supply case 3 is fixed to the ceiling (or C channel) with bolts 31. A plurality of abutting surfaces 29 project from the surface of the power supply case 3 that contacts the ceiling, and the power supply case 3 can be firmly fixed to the ceiling surface with bolts regardless of the surface state of the ceiling surface. The power line is connected to the quick connection terminal 23, and the external power supply and the power supply circuit unit are energized.

  Next, the stopper 9 provided in the power supply case 3, the wiring 21 from the power supply circuit section and the connector 28 are conducted through the power supply case mounting hole 10, and the lighting case 2 is locked to the power supply case 3. The lighting case 2 and the power supply case 3 can be locked by fitting the case locking protrusion 16 of the power supply case 3 into the case locking receiving portion 14 of the lighting case 2 as described above. In addition, since the two case locking receiving portions 14 have the openings aligned in the same direction toward the long side of the lighting case 2, the power supply case 3 is moved in the short direction of the lighting case 2. Can be locked. Moreover, it can also remove by moving to the direction opposite to the attachment direction, and can be attached or detached by the movement of the illuminating device 100 in the short direction.

  Further, the stopper 9 is rotated approximately 90 degrees to fix the lighting case 2 and the power supply case 3 in a locked state. Further, by connecting a connector 28 attached to one of the wirings 21 connected to the board connector 20 to the connector 28 from the power supply circuit unit, the LED 12 is electrically connected to an external power source.

  Next, the protective plate 13 is fitted into the concave portion 6 of the side surface 5 of the lighting case 2, and the holding members 17 are attached to both ends of the short side of the lighting case 2 from the irradiation direction side of the protective plate 13. By attaching the holding member 17, the stopper 9 is also prevented from rotating, and the lighting case 2 and the power supply case 3 are more firmly locked. Therefore, the lighting device 100 can maintain the locked state of the lighting device 100 even when a force about six times its own weight is applied to the lighting device 100 in the direction perpendicular to the installation surface of the lighting device 100. It becomes.

  As described above, the lighting device 100 can be easily attached to the ceiling. Further, safety can be ensured by the stopper 9 or the like. In addition, in the said embodiment, although it was set as the structure which provided the case latching receiving part 14 in the lighting case 2, and provided the case latching projection part 16 in the power supply case 3, you may provide in reverse.

  Moreover, although the said embodiment is an example which consists of a several housing | casing of the housing | casing in which a illuminating device accommodates a light source and a power supply circuit part, it is a case where a power supply circuit part is arrange | positioned in a ceiling. Thus, the present invention can be applied even when a lighting device having at least a light source housing is attached to an installation surface such as a ceiling. That is, the housing that houses the light source on the installation surface by providing, for example, a set of locking members including the receiving portion and the protrusion described above on the surface that faces the installation surface of the housing that houses the light source. Can be installed. Therefore, when a plurality of lighting devices are installed in a line on the installation surface such as the ceiling, even if any one of the lighting devices on the line fails, the lighting device is locked from the direction perpendicular to the line. Since it is locked by the means, only the failed lighting device can be replaced. In addition, when the lighting device is attached in a line shape, the lighting device can be attached from a direction perpendicular to the line, so that a plurality of lighting devices can be attached at the same time, and the workability of the attachment is improved.

  In the above description, the direction perpendicular to the line is parallel to the installation surface of the illumination device and is the short direction of the illumination device, but is perpendicular to the line and perpendicular to the installation surface. It may be in a certain direction. Even in that case, it is possible to individually replace a plurality of lighting devices attached in a line.

  Furthermore, the shape of the lighting device is not limited to an elongated shape, and even in the case of a square-type lighting device, the case locking receiving portion 14 and the case locking protrusion 16 are formed in two housings. The present invention can be applied. In the case where a plurality of lighting devices are continuously installed on an installation surface such as a ceiling, it is effective because the lighting devices can be installed from a different direction from the side of other adjacent lighting devices. Moreover, in the said embodiment, although the illuminating device using LED as a light source was illustrated and demonstrated, the light source is not limited to LED, Other light sources, such as EL (Electro-Luminescence), may be sufficient.

Embodiment 2
FIG. 12 is a schematic exploded perspective view of the illumination device 140 according to the second embodiment of the present invention, and FIG. 13 is a schematic exploded perspective view showing a locked state of the illumination device 140 according to the second embodiment. About the same part as Embodiment 1, the same code | symbol is attached | subjected and detailed description is abbreviate | omitted.

  The illumination device 140 according to the second embodiment is different from the illumination device 100 according to the first embodiment in a structure that assists and fixes the locking structure between the illumination case and the power supply case. The lighting device 100 according to the first embodiment rotates the stoppers 9 provided at both ends on the short side of the power supply case 3 after inserting the stoppers 9 into the power supply case mounting holes 10 of the lighting case 2. The power supply case 3 is fixed in a locked state. Therefore, when the lighting device 100 is mounted on a fixed installation surface such as a ceiling, the mounting of the lighting device 100 is relatively easy even with the stopper 9 shown in the first embodiment. However, when attaching the illuminating device 100 to the unstable wire suspended on the ceiling, a structure for easier attachment is required, unlike the case of attaching to the fixed surface.

  Therefore, the lighting device 140 according to the second embodiment has a U-shape at both ends on the short side of the power supply case 42, and has a hook 43 that opens toward the end on the short side of the lighting device 140. Prepare. The hook 43 has a size that allows the power supply case mounting hole 10 of the lighting case 2 to be inserted, and is hooked on a part of the lighting case 2 adjacent to the power supply case mounting hole 10. Therefore, the hook part 43 acts as a fixed part. Further, the fixing is strengthened by the locking screw 44 that fixes the hooking portion 43 between the lighting case 2 and the power supply case 42. Note that the hook portion 43 may be formed integrally with the power supply case 42 itself, or may be structured separately from the power supply case 42 and detachable from the power supply case.

  Next, attachment of the illumination device 140 of Embodiment 2 will be described in detail. First, the power supply case 42 is attached to a fixture such as a bolt disposed on a wire suspended from the ceiling or the like, and the power line is connected to the quick connection terminal 23 in the power supply case 42. Next, the hook part 43 at one end of the power supply case 42 is hooked on the lighting case 2, and the other hook part 43 is hooked on the lighting case 2 in order to temporarily attach the lighting case 2 to the power supply case 42. Thereafter, the case locking projection 16 of the power supply case 42 is fitted and locked to the case locking receiving portion 14 of the lighting case 2. At that time, by connecting the connector 28 from the substrate 7, the LED 12 is connected to the power circuit section and is electrically connected to the external power source. Further, the screw 44 is screwed so as to reach the power supply case 42 from the lighting case 2 side, so that the locking of the lighting case 2 and the power supply case 42 becomes stronger.

  Therefore, since the power supply case 42 and the lighting case 2 are once attached by the hook portion 43 and then locked by the locking member, the lighting device 140 can be easily attached. Therefore, the illumination device 140 can be attached to an unstable wire. Note that the present invention can be applied if the object to be attached is not a wire but an unstable object such as a rope.

  In the above-described embodiment, the planar shape of the reflection sheet is rectangular, but is not limited to this, and may be elliptical or circular. Moreover, in the above-mentioned embodiment, it was the structure which provided a curved part along the edge part of a reflective sheet, However, It is not limited to this, For example, it passes along the center part of a reflective sheet, and is parallel to a periphery. It can also be provided. Furthermore, it is not limited to a sheet-like reflecting part, and a plate-like reflecting plate may be used. Further, an antistatic material may be applied to the reflection sheet, or a material containing an antistatic material may be used. This can prevent the LED from being damaged by static electricity.

It is a schematic assembly perspective view of the illuminating device which concerns on this invention. It is a general | schematic disassembled perspective view of the illuminating device which concerns on this invention. It is the schematic plan view seen from the light source side of the illuminating device which concerns on this invention. It is the schematic sectional drawing cut | disconnected by the AA line of FIG. It is the schematic sectional drawing cut | disconnected by the BB line of FIG. It is principal part sectional drawing which shows an example of the structure of the curved part of this Embodiment. It is principal part sectional drawing which shows the other example of the structure of a curved part. It is principal part sectional drawing which shows the other example of the structure of a curved part. It is a principal part top view which shows an example of the structure of the music part of this Embodiment. It is a principal part top view which shows the other example of the structure of a curved part. It is a principal part top view which shows the other example of the structure of a curved part. It is a general | schematic disassembled perspective view of the illuminating device of Embodiment 2 of this invention. It is a schematic exploded perspective view which shows the latching state of the illuminating device of Embodiment 2.

Explanation of symbols

100, 140 Lighting device 2 Lighting case 3, 42 Power supply case 7 Substrate 12 LED
20 Board Connector 21 Wiring 22 Reflective Sheet 50 Space 221 Curve

Claims (7)

In a lighting device with a light source mounted on a substrate,
A reflective portion on the side of the substrate on which the light source is mounted;
The reflecting portion is
An illumination device configured to cover a wiring portion disposed on the substrate. The reflective portion is
The lighting device according to claim 1, wherein a space for accommodating the wiring portion is provided between the substrate and the substrate. The reflective portion is
A curved portion obtained by bending a part of the reflecting portion to the opposite side of the substrate;
The lighting device according to claim 1, wherein the wiring portion is accommodated in a space between the curved portion and the substrate.   The lighting device according to claim 3, wherein the curved portion is provided on a part of a periphery of the reflecting portion.   The lighting device according to claim 3 or 4, wherein the curved portion is formed by bending or curving a part of the reflecting portion. The wiring part is
6. The lighting device according to claim 1, comprising at least one of a connector provided on the substrate or a wiring connected to the connector. 6.   The lighting device according to any one of claims 1 to 6, wherein the light source is a light emitting diode.

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