TW201333367A - Illumination apparatus - Google Patents

Abstract

An illumination apparatus is provided for improving safety, bringing about a sense of security, and easily executing electrically connected operation. The illumination apparatus includes an installing component (1), an light source main body (2) and a lighting device (3). The installing component (1) includes an attaching portion (4) for installing on an apparatus mounting surface (C). The light source main body (2) includes a light source portion (7) and is installed on the front surface side of the installing component (1) openably and closably. The lighting device (3) is installed on the back surface side of the installing component (1), and includes a connected device (Cn3) for power supply, and the connected device (Cn3) is led to the front surface of the installing component (1) side.

Description

Lighting device

An embodiment of the present invention relates to an illumination device including a light source unit that is closably attached to a mounting member, and the mounting member is attached to a device mounting surface such as a ceiling surface.

In recent years, with the increase in output and high efficiency of light-emitting diodes (LEDs), lighting devices that use LEDs as light sources for indoor or outdoor use and that are expected to have low power consumption and long life have been developed. . The illuminating device mounts a plurality of LEDs on a substrate to obtain a predetermined brightness, and is used, for example, as a ceiling light for an ordinary house mounted on a ceiling surface or the like.

Further, in such a ceiling lamp, there is proposed a ceiling lamp having a structure in which a light source unit is openably and closably provided with respect to a lower surface of a main body portion, and a lighting device is disposed on a lower surface side of the main body portion. . In the case of such a configuration, when an illuminating device is mounted on a device mounting surface such as a ceiling surface and an operation of electrically connecting the main body portion and the light source portion is performed, the light source portion is turned on with respect to the main body portion. get on.

Prior technical literature

Patent literature

Patent Document 1: Japanese Patent Laid-Open Publication No. 2009-117160

Patent Document 2: Japanese Patent Laid-Open Publication No. 2002-270027

However, in the configuration described above, when the light source unit is turned on with respect to the main body portion, the lighting device as the charging portion is visually observed. There is a sense of security in terms of safety when doing work. Further, the electric wires or the wiring components that are led out from the lighting device may be scattered and exposed, which may cause difficulty in understanding the connection portion in the electrical connection work. Further, there is a problem that design is also poor.

The present invention has been made in view of the above problems, and an object thereof is to provide an illuminating device which can improve safety and provide a feeling of security, and can be easily electrically connected.

A lighting device according to an embodiment of the present invention includes: a mounting member having a mounting portion for mounting on a device mounting surface; and a light source portion body having a light source portion and the light source portion body being closably attached to a front surface side of the mounting member .

Further, the illuminating device includes a lighting device disposed on the back side of the mounting member and having a power supply connecting device that is led to the front surface side of the mounting member to supply power to the light source unit.

According to the embodiment of the present invention, it is possible to provide a lighting device which can improve safety to provide a feeling of security and can be easily electrically connected.

The above described features and advantages of the present invention will be more apparent from the following description.

The illuminating device as an example of the present embodiment is a form that is attached to a ceiling lamp holder main body as a wiring device, and is used, for example, by using a light guide plate. A ceiling lamp that performs indoor lighting, and the ceiling lamp holder main body is provided on a device mounting surface such as a ceiling surface.

Hereinafter, an embodiment of the present invention will be described with reference to Figs. 1 to 7 . In the figure, the wiring connection relationship indicating an electric wire or the like may be omitted. In addition, the same portions are denoted by the same reference numerals and the description thereof will not be repeated.

As shown in FIGS. 1 to 3 and 5, the illuminating device basically includes two members, a mounting member 1 and a light source portion body 2. In the mounting member 1, a lighting device 3, an adapter guide, an indirect light source unit 5, and an auxiliary unit 6 as the mounting portion 4 are disposed, and the auxiliary component unit 6 is provided with a plurality of Electrical accessory parts. Further, the light source unit main body 2 includes a light source unit 7, a light guide plate 8, a frame member 9, and a diffusion cover 10.

Further, the illuminating device includes an adapter A that is electrically and mechanically connected to the ceiling holder main body Cb, and an infrared remote control transmitter Rc that controls the lighting state of the light source unit 2, and the ceiling holder main body Cb is installed as a device. The ceiling surface C. Such an illuminating device has an appearance of a substantially square shape, and the front surface side is used as an irradiation surface of light, and the back side is used as a mounting surface for the ceiling surface C. These components will be described in order below.

The mounting member 1 is a flat plate-shaped device body formed of a metal material such as a cold-rolled steel sheet and formed into a substantially rectangular shape. Specifically, the mounting member 1 is a chassis to which white coating is applied, and an opening 11 having a substantially circular shape is formed at a substantially central portion, and the opening 11 is provided with a mounting portion 4 to be described later, and the mounting portion 4 is The ceiling lamp holder main body Cb and the adapter A provided on the ceiling surface C face each other.

In addition, a locking receiving metal fitting 12 that is bent into a key shape is attached to a substantially central portion of one side of the longitudinal direction of the attachment member 1 by a fixing means such as a screw. On the other hand, in the corner portions at both ends of the other side, a pair of attachment member fittings 13 bent in a substantially L shape and extending on the front surface side are attached by a fixing means such as a screw.

Further, as shown in the reference of FIG. 7, the first projecting wall 14 and the second projecting wall 15 projecting toward the front surface side are formed by the drawing process on the mounting member 1. The first projecting wall 14 is formed in a substantially square shape having a rounded shape by the step portion 14a, and the second projecting wall 15 is formed in a substantially circular shape so as to protrude from the first projecting wall 14 by the step portion 15a. Therefore, the second protruding wall 15 is formed to surround the periphery of the opening 11.

The first protruding wall 14 and the second protruding wall 15 mainly serve to reinforce the flat mounting member 1.

As shown typically in FIG. 3, the lighting device 3 includes a circuit board and circuit components such as a control integrated circuit (IC), a transformer, and a capacitor mounted on the circuit board. The circuit board is formed in a plate shape so as to surround the periphery of the center portion, and circuit components are mounted on the surface side thereof.

The circuit board is electrically connected to the adapter A side, and is connected to the commercial AC power supply via the adapter A. Therefore, the lighting device 3 receives the AC power supply to generate a DC output, and supplies the DC output to the light source unit 7 via the electric wire to perform lighting control of the light source unit 7.

Therefore, on the front surface side of the mounting member 1, as shown in FIGS. 3 and 5 to 7, a power supply connector Cn3 is provided as a power supply. The connection device is derived from the lighting device 3 through a through hole formed in the mounting member 1. The power supply connector Cn3 has a substantially box-like outer shape, and a connection port P is formed as a connection portion on one side surface side. The connection port P has a concave shape so that the power receiving connector Cn2 as the power receiving connection device can be inserted and electrically connected.

Further, the power supply connector Cn3 may also be taken out from the through hole formed in the mounting member 1 and led out to the front surface side of the mounting member 1 together with the electric wire.

As shown in the reference of FIG. 2, the lighting device 3 is attached to the lighting device cover 35 and covered, and is disposed on the back side of the mounting member 1. At this time, the circuit board is mounted with the circuit component facing the front surface side (the lower side in the drawing). Further, on the back side of the circuit board, a component having a relatively small height such as a switching element or a surface mounting component may be mounted. Thus, since the lighting device 3 is attached to the back side of the mounting member 1, the mounting state is stabilized as compared with the case where it is mounted on the front surface side.

The lighting device cover 35 is formed in a short rectangular shape having a substantially rectangular shape by a metal material such as a cold-rolled steel sheet, and the side wall 35a is inclined so as to expand toward the front surface side, and an opening is formed in a central portion of the rear surface 35b. 35c.

The lighting device cover 35 mounts a flange on the front surface side on the mounting member 1, and is screwed and attached. Therefore, the lighting device cover 35 is disposed to protrude from the back side of the mounting member 1.

Further, an elastic member 36 is attached to the back side of the lighting device cover 35. The elastic member 36 is a metal spring member including a material such as stainless steel, and is mounted corresponding to each side of the lighting device cover 35, Further, the pair of front end sides are expanded to extend toward the back side.

The elastic member 36 is a member that is disposed in such a manner that the illuminating device is attached to the ceiling surface C as the device mounting surface, and is interposed between the ceiling surface C and the ceiling surface C with elastic deformation. It is surely maintained on the ceiling surface C.

The mounting portion 4 is an adapter guiding portion, and is a member through which the adapter A is inserted and engaged, and is a member for attaching the lighting fixture to the ceiling surface C. As shown in FIGS. 2 and 3, the adapter guide portion is formed in a substantially cylindrical shape, and a circular engagement opening 41 through which the adapter A is inserted and engaged is provided at the center portion. The adapter guide portion is disposed corresponding to the opening 11 formed at a substantially central portion of the attachment member 1.

Further, the mounting portion 4 is not necessarily a member called an adapter guiding portion or the like. For example, the opening formed in the chassis or the like may be a member or a portion that faces the ceiling holder main body Cb as a wiring device and that engages the adapter A. Mainly refers to the member or part used to mount the lighting device to the ceiling surface C.

The indirect light source unit 5 is disposed around the lighting device 3 on the back side of the mounting member 1, and mainly has a function of illuminating the ceiling surface C. As shown in FIGS. 2 and 3, the indirect light source unit 5 is disposed around the lighting device 3, and includes a plurality of substrates 51 and a plurality of light-emitting elements 52 mounted on the substrate 51.

The substrate 51 is formed into a substantially rectangular flat plate, and the light-emitting elements 52 are linearly arranged and mounted along the longitudinal direction of the substrate 51.

The substrate 51 on which the light-emitting element 52 is mounted is in the lighting device cover The four portions on the side wall 35a of the 35 are mounted along the side wall 35a. At this time, the lighting device cover 35 is formed in a substantially quadrangular shape, and the substrate 51 is attached to the linear flat surface on the side wall 35a, so that the mounting can be stably performed.

Further, since the side wall 35a of the mounting portion constituting the substrate 51 is formed in an inclined shape that is expanded toward the front surface side, the substrate 51 is directed obliquely upward, that is, in the direction of the ceiling surface C, the light emitted from the light-emitting element 52 is directed toward the ceiling surface C. And effectively illuminate.

Further, each of the indirect light source units 5 is covered with a translucent cover 53, and the translucent cover 53 is formed in an inclined shape in which the cross section is expanded toward the back side. Therefore, when the side portion of the illuminating device is viewed from below in a state where the illuminating device is attached to the ceiling surface C, it is difficult to visually recognize the elastic member 36 attached to the back side of the lighting device cover 35.

The light-emitting element 52 is an LED and is a surface mount type LED package, and an LED package in which the light-emitting color is a bulb color (L) is used. The light-emitting element 52 is connected to the lighting device 3 and is controlled by lighting.

Thus, the indirect light source unit 5 is attached to the side wall 35a of the lighting device cover 35 and disposed around the lighting device 3. Therefore, when the indirect light source unit 5 is provided, no extra space is required, and no additional space is added. The height dimension of the back side is large, and the thickness of the device can be reduced. Further, the wiring for connecting the lighting device 3 and the indirect light source unit 5 can be simplified.

The auxiliary component unit 6 is disposed at a central portion on the other side of the mounting member 1. The auxiliary component unit 6 is configured to include a unit substrate and a plurality of electrical auxiliary components mounted on the substrate in a box having a horizontally long box shape. The electric auxiliary component in the embodiment is an infrared remote control signal receiving unit, a long light or Channel setting switch, etc.

Next, the light source unit main body 2 includes a light source unit 7 , a light guide plate 8 , a frame member 9 , and a diffusion cover 10 .

As shown in FIGS. 3 and 4, the light source unit 7 includes a substrate 71 and a light-emitting element 72 mounted on the substrate 71.

The substrate 71 is formed in a horizontally long rectangular shape and includes a flat plate of a glass epoxy resin (FR-4) which is an insulating material, and a wiring pattern formed of a copper foil is formed on the surface side, and A resist layer is formed by appropriately laminating a wiring pattern. Further, when the material of the substrate 71 is an insulating material, a ceramics material or a synthetic resin material can be applied. In addition, when it is made of a metal, it is also possible to apply a base substrate made of a metal having an insulating layer laminated on one surface of a base plate having excellent heat conductivity and excellent heat dissipation properties such as aluminum.

The light-emitting element 72 is an LED and is a surface mount type LED package. The LED packages are arranged linearly along the longitudinal direction of the substrate 71, and are mounted in plurality. The LED package generally includes: an LED chip disposed in a cavity formed of ceramic or synthetic resin; and a mold for molding an epoxy resin or a silicone resin. A photo-resin seals the LED wafer.

For the LED package, an LED package in which the illuminating colors are the bulb color (L) and the daylight color (D) is used, that is, a so-called white LED package is used, and these LED packages are alternately arranged in a straight line along the longitudinal direction. The LED chip is an LED chip that emits blue light. Mixed in translucent resin In order to be able to emit white light of a bulb color (L) or a daylight color (D), a yellow phosphor or a red phosphor is mainly used, and the yellow phosphor emits a complementary color with the blue light. A relationship of yellow light that is used to supplement the red component. In addition, the so-called white color includes daylight color (D), white color (N), white color (W), or light bulb color (L).

In addition, the LED can be directly mounted on the substrate 71 by means of a chip on board (COB), and a bullet-type LED can also be mounted. The mounting method or form is not particularly limited.

The substrate 71 of such a light source unit 7 is mounted on a mounting plate 73 as a heat dissipating member.

The mounting plate 73 is made of a material having good heat conductivity such as aluminum or a galvanized steel sheet, and is horizontally long and has a side surface formed in a substantially C-shaped channel shape. On the inner side wall of the mounting plate 73, the substrate 71 is attached by screwing or the like so that the back side thereof is in close contact with each other. Therefore, the light-emitting element 72 is thermally coupled to the mounting board 73 via the substrate 71, and the light source unit 7 is unitized by mounting the substrate 71 on the mounting board 73.

In the present embodiment, four unit light source units 7 are used, and are disposed corresponding to the respective sides of the light guide plate 8. Further, the unitized light source units 7 are electrically connected to each other through a connector.

Further, the unitized light source unit 7 may be disposed on both opposite sides or adjacent sides of the light guide plate 8, and may be appropriately selected according to design.

As shown in FIG. 2, the mounting plate 73 as a heat radiating member is disposed so as to be located outside the mounting member 1 and exposed to the outside. In other words, each of the attachment plates 73 is disposed in a quadrangular shape so as to surround the attachment member 1 with the attachment member 1 as the inner side.

Further, since the substrate 71 is attached to the inner side wall of the mounting plate 73 so as to be vertically erected in the vertical direction, the inside of the light source unit main body 2 surrounded by the respective mounting plates 73 is as shown in FIGS. 2, 3, and 5. A space portion Sc is formed. In other words, the space portion Sc is formed on the side of the light source unit body 2 that faces the front surface side of the mounting member 1.

In addition, as shown in FIG. 3 and FIG. 5 to FIG. 7, the power receiving connector Cn2 as a power receiving connection device which is led out from the one end of the light source unit 7 by an electric wire is provided.

Specifically, the power receiving connector Cn2 is electrically connected to the light-emitting element 72 via the substrate 71 in the light source unit 7, and is in the vicinity of the corner of the mounting member 1 having a quadrangular shape, in other words, from the light guide plate 8 having a quadrangular shape. The vicinity of the corner portion is led out by the electric wire in the direction along the inner side in the longitudinal direction of the mounting member 1. The power receiving connector Cn2 is formed in a substantially rectangular parallelepiped shape and has an insertion portion that protrudes forward. The insertion portion is a portion that is inserted into the connection port P of the power supply connector Cn3, and is electrically connected by inserting the power receiving connector Cn2 into the power supply connector Cn3.

At the center portion on the one side of the mounting plate 73 on the opposite side, the locking metal fitting 75 bent in a key shape is attached to the inside by a fixing device such as a screw. On the other hand, on the other side of the mounting plate 73, a pair of mounting members 76 are attached by means of fixing means such as screws.

The locking metal fitting 75 and the mounting member belong to the fitting 76 and the locking receiving metal fitting 12 and the mounting member attached to the mounting member 1 described above. 13 is disposed in a facing manner, and is locked, fixed to the locking receiving metal fitting 12, and the mounting member is an accessory 13, the details of which will be described later.

Further, in the present embodiment, the engagement receiving metal fitting 12, the attachment member fitting 13, the locking metal fitting 75, and the attachment member fitting 76 constitute a locking coupling device of the mounting member 1 and the light source unit body 2.

The light guide plate 8 is formed in a polygonal shape using a material having a high transmittance such as an acryl resin. Specifically, it is formed into a flat plate shape having a rectangular shape, and a dot pattern including a plurality of white dots for diffusing light is formed by printing on the entire surface on the back surface side, and a reflective sheet is provided ( Sheet). Further, a diffusion sheet is provided on the entire surface on the front surface side. Further, the outer peripheral portion of the light guide plate 8, that is, the side end surface of each of the sides of the rectangular shape functions as a light incident end surface 81 that is incident on the light emitted from the light-emitting element 72 and travels inside the light guide plate 8.

The substrate 71 of the light source unit 7 is disposed on the light incident end surface 81 of the light guide plate 8. That is, as shown in FIG. 4, mainly, light is incident on the light incident end surface 81 of the light guide plate 8, and the plurality of light-emitting elements 72 are linearly arranged and disposed on the substrate 71. Moreover, the light guide plate 8 covers the front surface side of the mounting member 1 including the mounting portion 4.

The frame member 9 is a member constituting the outer peripheral portion of the light source unit main body 2, and is configured to include an outer frame 91, a front frame 92, and a translucent frame 93. The outer frame 91 is made of a synthetic resin material such as acrylonitrile butadiene styrene (ABS) resin or polycarbonate, and has a frame shape which is formed in a substantially square shape by standing side walls. The front frame 92 is made of a white synthetic resin material and is made of a plate. The terrain is formed into a substantially square frame shape.

Further, the translucent frame 93 is formed into a substantially square frame shape by a light transmissive material such as an acrylic resin, and is disposed between the outer frame 91 and the front frame 92 as shown in FIG. Assume. The light-transmitting frame 93 has a function of guiding light emitted from the light guide plate 8 to illuminate the side of the light source unit body 2.

These frame members 9 are attached to the side of the mounting plate 73 by means of a fitting member, and the detailed structure of the mounting member is omitted.

The diffusion cover 10 is formed by diffusing a material having light transmissivity such as an acrylic resin to form a substantially square shape, and is disposed so as to cover the front surface side of the light guide plate 8.

Further, a diffusion member 85 is disposed on the front surface side and the outer peripheral edge portion of the light guide plate 8. The diffusing member 85 has a substantially triangular cross section and has an elongated shape, and is formed by diffusing a material having light transmissivity such as an acrylic resin. By disposing the diffusion member 85 on the outer peripheral edge portion of the light guide plate 8, it is possible to suppress luminance unevenness or color unevenness which is likely to occur in a portion where the light incident end surface 81 of the light guide plate 8 is incident.

As shown in FIG. 3, the adapter A is electrically and mechanically connected to a portion of the ceiling holder main body Cb provided on the ceiling surface C by a hook provided on the upper surface side, and has a substantially cylindrical shape and a peripheral wall. A pair of locking portions A1 are provided on both sides so as to always protrude toward the outer peripheral side by a built-in spring. The locking portion A1 is immersed by operating the lever provided on the lower surface side.

Moreover, as shown in FIG. 5, the connection from the adapter A is connected to the The power supply line of the lighting device 3 is connected to the power supply connector Cn1 at the front end portion thereof. The power connector Cn1 is connected to the power receiving connector Cn0 (see FIG. 7) provided on the lighting device 3 side.

As shown in FIG. 1, the infrared remote control transmitter Rc transmits, for example, a pulsed specific encoded infrared remote control signal having a frequency of 38 kHz, for example, a full light button, a dimming button. , long light button and light out button. By operating the remote control transmitter Rc toward the auxiliary component unit 6, that is, the infrared remote control signal receiving unit, it is possible to control the light-emitting state of the light-emitting element 72 in the light source unit 7, that is, the full-light lighting, the dimming lighting, the light-off, and the like.

Next, an installation procedure in which the illumination device configured as described above is attached to the ceiling surface C will be described with reference to FIGS. 3, 5, and 6.

First, as shown in FIG. 5, the ceiling lamp holder main body Cb is provided on the ceiling surface C. Further, the adapter A is electrically and mechanically connected to the ceiling holder main body Cb.

In this state, the mounting member 1 side is attached to the adapter A as shown in the drawing. Specifically, on the one hand, the engaging opening 41 of the adapter guiding portion as the mounting portion 4 in the mounting member 1 is aligned with the adapter A, and on the one hand, the mounting member 1 is pushed up by hand from below until the locking portion A1 of the adapter A is surely The grounding is engaged with the engaging opening 41 of the adapter guiding portion to perform the mounting operation. In this state, the power connector Cn1 led from the adapter A is connected to the power receiving connector Cn0 on the lighting device 3 side.

Next, the light source unit body 2 side is attached to the mounting member 1 side. As shown in FIG. 6, the locking metal fitting 75 provided on the side of the light source unit body 2 is hooked The locking receiving metal fitting 12 on the side of the mounting member 1 supports the light source unit body 2, and the side of the mounting member 1 and the side of the light source unit 2 are connected by a chain Ch to support the light source unit body 2 in a suspended state. The chain Ch has a function of preventing the light source portion body 2 from falling to improve safety.

Then, the power receiving connector Cn2 that is led out from the one end of the light source unit 7 is connected to the power supply connector Cn3 disposed on the lighting device 3 side on the front surface side of the mounting member 1. In this case, the power receiving connector Cn2 is provided with a sufficient length from the light source unit 7 and is guided by the electric wire. Therefore, the connection operation of the power supply connector Cn3 on the lighting device 3 side is facilitated, and the power receiving connection can be reduced. The tension applied by the Cn2 or wire. In this way, the side of the mounting member 1 and the side of the light source unit 2 are electrically and electrically connected to each other via the power receiving connector Cn2 and the power supply connector Cn3.

Then, the light source unit body 2 is rotated with the side of the locking metal fitting 75 as a fulcrum, and is blocked so as to cover the front surface side of the mounting member 1. In this state, the light source unit body 2 is surely attached to the front surface side of the mounting member 1 by the mounting screw S, and the mounting screw S penetrates the through hole of the mounting member 13 provided on the mounting member 1 and is screwed into it. The mounting member provided on the side of the light source unit body 2 is inside the screw hole of the fitting 76. This state is the installation completion state (refer to FIG. 3).

In the mounted state of the lighting device, the adapter A is inserted into the opening 35c of the lighting device cover 35, and the locking portion A1 of the adapter A is locked to the engaging opening 41 of the adapter guiding portion, and is provided on the back side of the lighting device cover 35. The elastic member 36 is elastically deformed to be interposed between the back side of the lighting device cover 35 and the ceiling surface C in a compressed state. Therefore, the lighting device is stable and firm The ground is engaged with the adapter A to stably maintain the mounted state.

Further, when the illuminating device is detached, the mounting screw S is detached, the light source portion main body 2 is rotated in the opening direction by the locking fulcrum side as a pivot point, and then the light source unit body 2 is detached from the mounting member 1. The front surface side of the mounting member 1 is opened. Then, the operation lever provided on the adapter A is operated to release the engagement of the locking portion A1 of the adapter A, so that the attachment member 1 can be detached.

Thus, the light source unit body 2 is closably attachable and detachably attached to the front surface side of the mounting member 1.

In the mounting operation of the illuminating device as described above, even in the state where the front surface side of the mounting member 1 is open, since the lighting device 3 is disposed on the back side of the mounting member 1, the lighting device 3 is not exposed. The surface side is not visually observed. Therefore, safety can be improved to bring a sense of security. Further, since the front surface side of the flat mounting member 1 is exposed, it is possible to prevent the electric wires or the wiring components that are led out from the lighting device 3 from being scattered and exposed. Therefore, for example, it is easy to understand the connection portion of the power receiving connector Cn2, that is, the power supply connection. The arrangement portion of the device Cn3 can be expected to have an effect of facilitating the connection work. In addition to this, design improvement can be achieved.

Further, the first protruding wall 14 and the second protruding wall 15 that perform the reinforcing action are formed on the front surface side of the mounting member 1, but these protruding walls 14 and 15 are disposed in the space portion Sc formed on the side of the light source unit main body 2 . Further, an electric wire led out from the light source unit 7 is disposed in the space portion Sc.

Further, the lighting device 3 is disposed on the side of the mounting member 1. Therefore, the weight of the side of the light source unit body 2 coupled to the mounting member 1 is reduced, and the composition is The load-carrying metal fitting 12 and the mounting member 13, the locking metal fitting 75, and the mounting member 76 of the locking engagement device are relieved from the load, and are advantageous in terms of strength.

Further, since the lighting device 3 and the indirect light source unit 5 are disposed on the back side of the mounting member 1, for example, when the model having the indirect light source unit 5 and the model having no indirect light source unit 5 are formed, I look forward to the effect that it is easy to cope with. In the same manner, it is easy to cope with the model of the lighting device 3 having a different structure or size. That is, it is advantageous in the case where only the lighting device 3 is changed and most of the other constituent members are shared.

In the mounted state of the illumination device, for example, when the infrared remote control transmitter Rc is operated to supply electric power to the lighting device 3, the light-emitting element 72 is energized via the substrate 71, and each of the light-emitting elements 72 is lighted by the lighting device 3. The light emitted from the light-emitting element 72 is incident on the light incident end surface 81 of the light guide plate 8, and the incident light is totally reflected in the light guide plate 8 to spread over the entire light guide plate 8, and is formed by the point on the back side including the reflection point. The pattern or the reflection sheet is reflected and diffused, and further, after being diffused through the diffusion cover 10, the homogenized light is emitted from the front surface side.

At this time, the light guide plate 8 covers the front surface side of the mounting member 1 including the mounting portion 4. That is, on the light guide plate 8, an opening for forming a central portion of the operation of the adapter A or the like is not formed. Therefore, a dark portion is not generated in the central portion of the light guide plate 8, and the luminance of the light-emitting surface can be made uniform, a good light distribution state can be achieved, and a brightness feeling can be improved.

Assuming that an opening is formed in the central portion of the light guide plate 8, the opening is a portion where light is not guided by light, and the portion is darkened, thereby causing the central portion to become dark. The phenomenon of the Ministry.

When the indirect light source unit 5 is energized, the respective light-emitting elements 52 are turned on, and the light emitted obliquely upward from the light-emitting element 52 passes through the translucent cover 53 and is radiated from the periphery of the lighting device 3. Mainly illuminated to the ceiling. Therefore, the ceiling surface becomes brighter, and the brightness of the space can be improved. In this way, since the indirect light source unit 5 is disposed around the lighting device 3, it is effectively disposed as a light source for illuminating the indirect light of the ceiling surface, and the thickness of the device can be reduced.

When the respective light-emitting elements 72 in the light source unit 7 are turned on, heat is generated from each of the light-emitting elements 72. The heat generated from each of the light-emitting elements 72 is mainly conducted from the back side of the substrate 71 to the mounting plate 73 as a heat radiating member and is radiated. At this time, since the attachment plate 73 is disposed so as to be located outside the attachment member 1 and exposed to the outside, the external air acts to be easily cooled, and the heat can be efficiently dissipated.

As described above, according to the present embodiment, since the lighting device 3 is disposed on the back side of the mounting member 1, it is possible to provide an illuminating device, which can improve safety and provide a feeling of security, and can be easily electrically connected.

Further, in the above-described embodiment, a hinge structure may be applied as the locking engagement device, and the light source unit body may be attached to the front surface side of the attachment member in an openable and closable manner. Further, for example, a metal jig may be provided on both opposite sides of the outer frame to detachably attach the light source unit to the mounting member. At this time, the front surface side of the mounting member can also be opened and closed by the light source unit body. Thus, the locking engagement device can be applied to various configurations, and is not particularly limited.

The present invention is not limited to the configuration of the above-described embodiment, and various modifications can be made without departing from the spirit and scope of the invention. Further, the above embodiment is presented as an example and is not intended to limit the scope of the invention.

In the above-described embodiment, the case where the light guide plate formed into a rectangular shape is used and the light-emitting surface is formed into a substantially rectangular shape has been described. However, for example, the light guide plate may be formed in a hexagonal shape or an octagonal shape, and the like. The light-emitting elements are arranged on each side thereof, and the front frame is formed into a circular shape, and a circular light-emitting surface is formed such that the light-emitting surface of the light guide plate is exposed in a circular shape.

Further, the above embodiment is suitable for an illumination device that illuminates using a light guide plate, but is not limited thereto. It can also be applied to lighting devices that do not use a light guide. Further, the light source is suitably used in the case of using a light-emitting element such as an LED, but is not particularly limited. It is also possible to use a fluorescent lamp or the like.

Although the present invention has been disclosed in the above embodiments, it is not intended to limit the invention, and any one of ordinary skill in the art can make some modifications and refinements without departing from the spirit and scope of the invention. The scope of the invention is defined by the scope of the appended claims.

1‧‧‧Installation components

2‧‧‧Light source body

3‧‧‧Lighting device

4‧‧‧Installation section (adapter guide)

5‧‧‧Indirect light source department

6‧‧‧Auxiliary parts unit

7‧‧‧Light source department

8‧‧‧Light guide plate

9‧‧‧Frame components

10‧‧‧Diffuse cover

11, 35c‧‧‧ openings

12‧‧‧Card accepting metal fittings

13, 76‧‧‧Installation parts are accessories

14‧‧‧1st protruding wall

15‧‧‧2nd protruding wall

14a, 15a‧‧ ‧ step

35‧‧‧Lighting device cover

35a‧‧‧ side wall

35b‧‧‧back wall

36‧‧‧Flexible components

41‧‧‧Card

51, 71‧‧‧ substrate

52, 72‧‧‧Lighting elements (LED)

53‧‧‧Translucent cover

73‧‧‧ Heat dissipating components (mounting plate)

75‧‧‧Lock metal fittings

81‧‧‧Light incident end face

85‧‧‧Diffusion members

91‧‧‧External framework

92‧‧‧ front frame

93‧‧‧Transparent framework

A‧‧‧ Adapter

A1‧‧‧ card stop

C‧‧‧Installation surface (ceiling surface)

Cb‧‧‧Wiring device (main body of ceiling lamp holder)

Ch‧‧‧Chain

Cn0‧‧‧Power receiving connector

Cn1‧‧‧ power connector

Cn2‧‧‧Power connection device (power receiving connector)

Cn3‧‧‧Connecting device for power supply (connector for power supply)

Rc‧‧‧Infrared remote control transmitter

S‧‧‧Mounting screws

Sc‧‧‧ Space Department

Fig. 1 is a perspective view showing an illumination device according to an embodiment of the present invention.

Fig. 2 is a perspective view showing a back side of the lighting device according to the embodiment of the present invention.

Fig. 3 is a cross-sectional view taken along line Y-Y of Fig. 2;

Fig. 4 is an enlarged view showing a portion A in Fig. 3;

FIG. 5 is a cross-sectional view showing a state in which the mounting member is attached to the ceiling surface in a mounting order to the ceiling surface in the lighting device according to the embodiment of the present invention.

FIG. 6 is a cross-sectional view showing a state in which the lighting device is attached to the ceiling surface, and shows a state in which the light source unit is supported by the mounting member.

FIG. 7 is a perspective view showing an electric wire showing a mounting member viewed from a front surface side and showing a power receiving connector connected thereto, as viewed from a front surface side.

1‧‧‧Installation components

2‧‧‧Light source body

3‧‧‧Lighting device

4‧‧‧Installation section (adapter guide)

5‧‧‧Indirect light source department

6‧‧‧Auxiliary parts unit

7‧‧‧Light source department

8‧‧‧Light guide plate

9‧‧‧Frame components

10‧‧‧Diffuse cover

11, 35c‧‧‧ openings

12‧‧‧Card accepting metal fittings

13, 76‧‧‧Installation parts are accessories

14‧‧‧1st protruding wall

15‧‧‧2nd protruding wall

14a, 15a‧‧ ‧ step

35‧‧‧Lighting device cover

35a‧‧‧ side wall

36‧‧‧Flexible components

41‧‧‧Card

51‧‧‧Substrate

52‧‧‧Lighting elements (LED)

53‧‧‧Translucent cover

73‧‧‧ Heat dissipating components (mounting plate)

75‧‧‧Lock metal fittings

91‧‧‧External framework

92‧‧‧ front frame

93‧‧‧Transparent framework

A‧‧‧ Adapter

A1‧‧‧ card stop

C‧‧‧Installation surface (ceiling surface)

Cb‧‧‧Wiring device (main body of ceiling lamp holder)

Ch‧‧‧Chain

Cn1‧‧‧ power connector

Cn2‧‧‧Power connection device (power receiving connector)

Cn3‧‧‧Connecting device for power supply (connector for power supply)

S‧‧‧Mounting screws

Sc‧‧‧ Space Department

Claims (3)

A lighting device comprising: a mounting member having a mounting portion for mounting on a mounting surface of the device; a light source portion having a light source portion, and the light source portion body being closably mounted to a front surface side of the mounting member; The lighting device is disposed on the back side of the mounting member, and has a power supply connecting device that is led to the front surface side of the mounting member to supply power to the light source unit. The illuminating device according to claim 1, wherein an indirect light source unit is disposed around the lighting device. The illuminating device according to claim 1 or 2, wherein a space portion is formed on a side of the light source portion facing the front surface side of the mounting member.