TW201323770A - Lighting device - Google Patents

Abstract

A lighting device, which can be wired smoothly, is provided. The lighting device includes an installation element (1), a light source body (2), a connection unit for power supplying and receiving (Cn3, Cn2) and a connection detecting unit (100). The installation element (1) has an installation part (4) for installing onto a mounting surface (C). The installation part (4) is located at the center of the installation element (1). The light source body (2) has a light source (7) and is installed onto a front surface of the installation element (1) in a way that allows opening and closing. The connection unit for power supplying and receiving (Cn3, Cn2) electrically connects one side of the installation element (1) and one side of the light source body (2). The connection detecting unit (100) is connected between the connection unit for power supplying and receiving (Cn3, Cn2) and the light source (7).

Description

Lighting device

An embodiment of the present invention relates to an illumination device including a connection unit that electrically connects a mounting member side mounted on a device mounting surface such as a ceiling surface to a light source portion body side.

In recent years, with the increase in output and efficiency of light-emitting diodes (LEDs), illumination devices have been developed which use LEDs as light sources and can be used indoors or outdoors. Long life. This illuminating device is an illuminating device that 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.

However, the directivity of the light emitted from the LED is strong, glare is likely to occur, and luminance unevenness is likely to occur. Therefore, a new lighting device has been developed which uses a light guide plate for illumination to suppress glare and improve the uniformity of the light-emitting surface.

In the case of such a lighting device, for example, an adapter is electrically and mechanically connected to a ceiling fixture main body, which is a wiring fixture provided on a ceiling surface, and then the illuminating device body is attached to the adapter. Therefore, in order to operate the adapter or the like in the case where the illuminating device body is attached or when the illuminating device body is detached, an opening is formed corresponding to the adapter in the central portion of the light guide plate.

However, the opening of the central portion formed corresponding to the adapter is a portion where the light is not guided, and a phenomenon occurs in which the portion is darkened, The central government became a dark department. Therefore, it is conceivable to form the illuminating device without forming an opening in the light guide plate.

In this case, in order to be able to operate the adapter or the like, it is necessary to form the mounting member and the light source unit body mounted on the device mounting surface such as the ceiling surface so as to be separable, and the mounting must be performed by wires or the like. The member side is electrically connected to the main body side of the light source unit.

[Previous Technical Literature] [Patent Literature]

[Patent Document 1] Japanese Patent Laid-Open Publication No. 2009-283197

[Patent Document 2] International Patent Publication No. 2011/081246

However, in the case of the configuration described above, one side of the mounting member and one side of the light source unit body may be electrically connected incompletely. Further, there is a problem in that one side of the mounting member is connected to one side of the light source unit body, and an electric wire having a predetermined length cannot be housed in the device, or the electric wire is tightly bent and housed in the device, so that the electric wire cannot be accommodated in the device. Smooth wiring processing.

The embodiment of the present invention is an embodiment in view of the above problems, and an object of the invention is to provide an illumination device that can be reliably connected.

Further, an object of an embodiment of the present invention is to provide an illumination device that can perform wiring processing smoothly.

A lighting device according to an embodiment of the present invention includes: a mounting member having a mounting portion for mounting on a mounting surface of the device at a central portion; a light source portion having a light source portion and being detachably attached to the mounting structure a front surface side of the device; a power supply and power receiving connection unit electrically connecting one side of the mounting member to a side of the light source unit; and a connection detecting unit connected to the power supply and power receiving unit Between the light source and the light source.

According to the embodiment of the present invention, it is possible to provide an illuminating device capable of reliably electrically connecting the mounting member side and the light source portion main body side, and ensuring safety.

The illuminating device of the present embodiment is an illuminating device that is attached to a ceiling holder body that is a wiring device, and is used for, for example, indoor lighting using a light guide plate. The ceiling lamp holder main body as a wiring device is installed in the device. surface.

Hereinafter, embodiments of the present invention will be described with reference to Figs. 1 to 11 . In the figure, the wiring connection relationship of an electric wire or the like may be omitted. In addition, the same portions are denoted by the same reference numerals, and the repeated description will be omitted.

As shown in FIGS. 1 to 5 and 7, 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 guiding portion as the mounting portion 4, an indirect light source portion 5, and an auxiliary component unit 6 provided with a plurality of electric auxiliary components are disposed. Further, the light source unit body 2 includes a light source unit 7, a light guide plate 8, a frame member 9, and a diffusion cover 10.

Moreover, the illuminating device comprises: an adapter A electrically and mechanically connected to the ceiling lamp holder main body Cb, the ceiling lamp holder main body Cb being disposed on the ceiling surface C as a device mounting surface; and an infrared remote control transmitter Rc, facing light The lighting state of the source unit 2 is controlled. Such an illuminating device has an appearance of a substantially square shape, and the front surface side is used as a light irradiation surface, and the back surface side is a mounting surface when mounted on the ceiling surface C. The constituent elements will be described in order.

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

In addition, the clip-on 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, the pair of attachment fittings 13 are also attached to the corner portions of the both ends of the other side by a fixing means such as a screw, and the pair of attachment fittings 13 are bent in a substantially L shape and extend toward the front surface side.

As representatively shown in FIG. 5, the lighting device 3 includes a circuit board, circuit components such as a control integrated circuit (IC) mounted on the circuit board, a transformer, and a capacitor. 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 of the circuit board.

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

Therefore, as shown in FIG. 5, FIG. 7, FIG. 9, and FIG. 10, the power supply connector Cn3 is disposed as the power supply connection unit connected to the lighting device 3 on the front surface side of the mounting member 1. The power supply connector Cn3 has a substantially box-like outer shape, and a connection surface P is formed as a connection portion on one side surface side.

More specifically, the interface P is recessed, and the power receiving connector Cn2 serving as the power receiving connection unit can be inserted into the interface P to be electrically connected to the interface P. The interface P is disposed in a direction substantially perpendicular to the front surface side direction in a substantially horizontal direction and disposed in an inward direction.

As described with reference to FIGS. 2 and 3, the lighting device 3 as described above is attached to the lighting device cover 35, covered by the lighting device cover 35, and disposed on the back side of the mounting member 1. In this case, the circuit board is mounted on the front surface side (the upper side and the lower side in the drawing) on the front surface side. Further, a component having a relatively small height such as a switching element or a surface mount component may be mounted on the back side of the circuit board.

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 plate, and the side wall 35a is inclined so as to expand toward the front surface side, and an opening 35c is formed in a central portion of the rear surface 35b.

A flange on the front surface side of the lighting device cover 35 is placed on the mounting member 1 and screwed, and the lighting device cover 35 is attached to 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 attached to each side of the lighting device cover 35 so that The pair of front end sides are expanded to extend toward the back side.

The elastic member 36 is a member that is disposed between the illuminating device and the ceiling surface C with elastic deformation in a state where the illuminating device is attached to the ceiling surface C as the device mounting surface. The elastic member 36 functions to securely hold the illumination device to 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 device to the ceiling surface C. As shown in FIG. 2, FIG. 3, and FIG. 5, the adapter guide portion is formed in a substantially cylindrical shape, and a circular engagement opening 41 is provided in the center portion, and the circular engagement opening 41 is inserted and engaged by the adapter A. . The adapter guiding portion is disposed corresponding to the opening 11 formed in the substantially central portion of the mounting member 1.

Further, the mounting portion 4 does not necessarily have to be a member called an adapter guiding portion or the like. For example, the mounting portion 4 may be an opening formed in a base or the like, and 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. In short, the mounting portion 4 is a member or portion for mounting the lighting device to the ceiling surface C.

The indirect light source unit 5 is disposed on the back side of the mounting member 1 and has a function of mainly illuminating the ceiling surface C. As shown in FIGS. 2 to 5, a plurality of indirect light source units 5 are disposed at positions around the mounting portion 4, and the indirect light source unit 5 includes a substrate 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 element 52 is The array is linearly mounted along the longitudinal direction of the substrate 51.

The substrate 51 on which the light-emitting elements 52 are mounted is mounted on four portions of the side wall 35a of the lighting device cover 35. In this case, 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 of the lighting device cover 35, so that the mounting can be stably performed.

Further, the side wall 35a as the mounting portion of the substrate 51 is formed in an inclined shape in which the front surface side is expanded. Therefore, the light emitted from the light-emitting element 52 is effected by the substrate 51 facing obliquely upward, that is, in the direction toward the ceiling surface C. The ground is irradiated in the direction of the ceiling surface C.

Further, each of the indirect light source units 5 is covered with a translucent outer cover 53, and the cross section of the translucent outer cover 53 is formed in an inclined shape that is expanded toward the back side. Therefore, when the illuminating device is attached to the ceiling surface C, when the side portion of the illuminating device is viewed from below, the elastic member 36 attached to the back side of the lighting device cover 35 can be hardly seen.

The light-emitting element 52 is an LED and is a surface mount type LED package, and a light-emitting element whose illuminating color is an incandescent-lamp color (L) is used. The light-emitting element 52 is connected to the lighting device 3 so as to be controlled by lighting.

The auxiliary part unit 6 is disposed at a central portion on the other side of the mounting member 1. The auxiliary component unit 6 includes a unit substrate and a plurality of electrical auxiliary components mounted on the substrate in a horizontally long box-shaped casing. The electric auxiliary component in the present embodiment is an infrared remote control signal receiving unit, a night light, a channel setting switch, or the like.

Next, the light source unit 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. 4 to 6, the light source unit 7 includes a substrate 71 and a light-emitting element 72 mounted on the substrate 71.

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

The light-emitting element 72 is an LED and is a surface mount type LED package. The LED packages are linearly arranged along the longitudinal direction of the substrate 71, and a plurality of the LED packages are mounted and disposed. The LED package generally includes: an LED wafer disposed in a cavity formed of ceramic or synthetic resin; and a light transmissive resin for a mold such as an epoxy resin or an anthrone resin, to the LED The wafer is sealed.

In the LED package, an LED package in which the illuminating color is an incandescent bulb color (L) and an LED package in which the illuminating color is a daytime color (D) are used, and these LED packages are packaged along a so-called white LED package. The longitudinal direction is alternately arranged in a straight line. The LED chip is an LED chip that emits blue light. A light-emitting resin is mixed with a phosphor, in order to be fired. The white light of the incandescent bulb color (L) and the daylight color (D) mainly uses a yellow phosphor that emits yellow light or a red phosphor that compensates for the red component, the yellow light. There is a complementary color relationship with the blue light. Further, in the so-called white, the daylight color (D), the white color (N), the white (W) or the incandescent light bulb color (L) or the like is included.

Further, for the LED, the LED wafer can be directly mounted on the substrate 71, and a bullet-shaped LED can be mounted. The mounting method or form is not particularly limited.

The substrate 71 of the light source unit 7 as described above is attached to the mounting plate 73 as a heat dissipating member.

The mounting plate 73 is made of a material having good thermal conductivity such as aluminum or a galvanized steel sheet, and the mounting plate 73 is formed in a pipe shape that is horizontally long and has a substantially C-shaped side surface. The substrate 71 is attached to the inner side wall of the mounting plate 73 so as to be closely attached to the inner side wall of the mounting plate 73 by screwing or the like. Therefore, the light-emitting element 72 is thermally coupled to the mounting plate 73 via the substrate 71, and the substrate 71 is attached to the mounting plate 73 to unitize the light source unit 7.

In the present embodiment, as shown in FIG. 4, four light source units 7 that have been realized in a unitized manner are used, and the four light source units 7 are disposed corresponding to the respective sides of the light guide plate 8. Further, the light source units 7 that have been unitized are electrically connected to each other by a connector.

Further, the light source unit 7 that has been unitized may be disposed on two opposite sides of the light guide plate 8, or may be appropriately selected according to the design.

As shown in FIGS. 2 and 3, the mounting plate 73 as the heat radiating member as described above is located outside the mounting member 1 and exposed to the outside. It is equipped with style. In other words, each of the mounting plates 73 is disposed in a quadrangular shape so that the mounting member 1 is inside and the periphery of the mounting member 1 is surrounded.

Further, as shown in FIG. 2, FIG. 3, FIG. 5, FIG. 9 and FIG. 10, a power receiving connector Cn2 as a power receiving connecting unit is provided, and the power receiving connector Cn2 serving as the power receiving connecting unit is connected by a wire. It is led out from one end of the light source unit 7.

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, in a quadrangular shape. The vicinity of the corner portion of the light guide plate 8 is led out by an 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 includes an insertion portion that is forward. The insertion portion is a portion that is inserted into the interface P of the power supply connector Cn3, and the power receiving connector Cn2 is inserted into the power supply connector Cn3, whereby the power receiving connector Cn2 and the power supply connector are connected. Cn3 forms an electrical connection.

In the relationship between the power supply connector Cn3 and the power receiving connector Cn2 as described above, the interface P of the power supply connector Cn3 is disposed in a direction that does not face the direction in which the power receiving connector Cn2 is led out. In other words, the interface P of the power supply connector Cn3 is not disposed in the direction in which the power receiving connector Cn2 is directed, but is disposed in a direction away from the power receiving connector Cn2.

According to the configuration described above, in the state in which the power receiving connector Cn2 is connected to the power supply connector Cn3, the electric wire of the power receiving connector Cn2 is formed in such a manner that a portion having a predetermined length from the lead end is mounted along the line. The inner side of the member 1 is oriented toward the power supply connector Cn3 that surrounds the rear. Winding in the direction of winding. Therefore, the long wire is housed and held in the device without being accidentally exposed.

Further, a connection detecting unit 100 is provided in the vicinity of the corner of the mounting member 1. The connection detecting unit 100 has a function of detecting a connection state between the power receiving connector Cn2 and the power supply connector Cn3, and stops supplying power to the light source unit 7 when the connection is incomplete.

The connection detecting unit 100 includes a circuit board 101 and a circuit component mounted on the circuit board 101. The connection detecting unit 100 is covered by a metal box-shaped casing and housed in the casing. Further, the connection detecting unit 100 is electrically connected between the light source unit 7 and the connection unit (the power receiving connector Cn2 and the power supply connector Cn3).

In this way, the connection detecting unit 100 is disposed in the vicinity of the corner portion of the mounting member 1, and the power receiving connector Cn2 is led out from the vicinity of the corner portion by the electric wire. Therefore, the effect of simplifying the wiring can be expected.

The locking fitting 75 bent into a key shape is directed to the inner side, and is attached to a central portion of one side of the mounting plate 73 on the side of the mounting plate 73 by a fixing means such as a screw. On the other hand, the pair of attachment fittings 76 are attached to the other side of the attachment plate 73 by a fixing means such as a screw (see FIG. 4).

The locking fitting 75 and the mounting fitting 76 as described above are disposed to face the locked fitting 12 and the mounting fitting 13 provided on the mounting member 1, and the locking fitting 75 is described in detail as follows. And the mounting fitting 76 is locked and fixed to the clipped fitting 12 and the mounting fitting 13.

Furthermore, in the present embodiment, the mounting member 1 is configured by the locked fitting 12, the mounting fitting 13, the locking fitting 75, and the mounting fitting 76. A locking coupling unit with 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 acrylic resin. Specifically, a flat plate shape having a quadrangular shape is formed, and a dot pattern is formed on the entire back surface side by printing and a reflection sheet is provided, the dot pattern including a plurality of white colors that diffuse light. Reflection point. 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 faces of the respective sides of the rectangular shape function as the light incident end surface 81, and the light emitted from the light-emitting element 72 The light is incident on the light incident end surface 81, and the light incident end surface 81 advances the light in 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 as described above. In other words, as shown in FIG. 6, the plurality of light-emitting elements 72 are arranged linearly on the substrate 71 so that light is incident on the light incident end surface 81 of the light guide plate 8. Further, 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 body 2, and includes an outer frame 91, a front frame 92, and a light transmissive frame 93. The outer frame 91 is made of a synthetic resin material such as Acrylonitrile Butadiene Styrene (ABS) resin or polycarbonate, and includes a standing side wall and is formed in a substantially square frame shape. The front frame 92 is formed of a white synthetic resin material and formed into a substantially square frame shape in a plate shape.

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

The frame member 9 is attached to the mounting plate 73 side by a detailed configuration of the omitted mounting fitting.

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

Further, the diffusion member 85 is disposed on the outer peripheral edge portion of the front surface side of the light guide plate 8. The diffusing member 85 has a substantially triangular cross section and has an elongated shape, and diffuses the material having translucency such as an acrylic resin to form the diffusing member 85. 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 the portion of the light incident end surface 81 of the light guide plate 8.

As shown in FIG. 5, the adapter A is electrically and mechanically connected to the ceiling holder main body Cb provided on the ceiling surface C by a hooking blade provided on the upper surface side, and the adapter A has a substantially cylindrical shape. A pair of locking portions A1 are provided on both sides of the peripheral wall, and the pair of locking portions A1 always protrude toward the outer peripheral side by a built-in spring. The lever provided on the lower surface side is operated, whereby the locking portion A1 is immersed in the adapter A.

Further, as shown in FIG. 7, a cord connected to the lighting device 3 is led out from the adapter A, and a power connector Cn1 is connected to a front end portion of the power cord. The power connector Cn1 is connected to the lighting device 3 side The power receiving connector Cn0 (see FIGS. 9 and 10) is provided.

The infrared remote control transmitter Rc transmits, for example, a pulse-like specific encrypted infrared remote control signal having a frequency of 38 kHz, and is provided with a full-light lighting button, a dimming lighting button, a night lighting button, or a light-off button. The remote control transmitter Rc is operated toward the auxiliary component unit 6, that is, the infrared remote control signal receiving unit, whereby 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, and Turn off the lights, etc. to control.

Next, an installation procedure when the illuminating device configured as described above is attached to the ceiling surface C will be described with reference to FIGS. 5, 7, and 8.

First, as shown in FIG. 7, 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, while the engagement opening 41 of the adapter guide portion as the attachment portion 4 of the attachment member 1 is aligned with the adapter A, the attachment member 1 is pushed up by hand from below until the locking portion A1 of the adapter A is surely The engagement operation is performed by engaging with the engagement opening 41 of the adapter guide. 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 main body 2 side is attached to the mounting member 1. As shown in FIG. 8, the locking fittings 75 provided on the side of the light source unit main body 2 are hooked on the clamped fittings 12 on the side of the attachment member 1, and the light source unit body 2 is supported, and the chain Ch is used. The side of the mounting member 1 and the side of the light source unit body 2 are coupled to each other to the light source unit body 2 in a suspended state. Support. The chain Ch has a function of preventing the light source unit body 2 from falling and improving safety.

Then, the power receiving connector Cn2 that is led out from one end of the light source unit 7 is connected to the power supply connector Cn3 on the lighting device 3 side disposed on the front surface side of the mounting member 1. In this case, the power receiving connector Cn2 is discharged from the light source unit 7 by the electric wire with a surplus length. Therefore, the connection work at the time of connecting the power supply connector Cn3 on the lighting device 3 side becomes easy. Further, the tension applied to the power receiving connector Cn2 or the electric wire can be reduced. In this manner, the power receiving connector Cn2 and the power supply connector Cn3 are electrically connected or disconnected to connect the mounting member 1 side to the light source unit main body 2 side.

Next, the light source unit main body 2 is rotated by the side of the locking fitting 75 as a fulcrum, and the front surface side of the mounting member 1 is closed so as to cover. In this state, the light source unit main 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 provided in the mounting fitting 13 of the mounting member 1 and is rotated. The screw holes are inserted into the mounting fitting 76 provided on the side of the light source unit body 2. The state is an installation completion state (refer to FIG. 5).

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 the rear side of the lighting device cover 35 is The elastic member 36 provided is elastically deformed and 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 firmly engaged with the adapter A, thereby stably maintaining the mounted state.

Further, when the illuminating device is removed, the mounting screw S is substantially removed, the side of the locking fitting 75 is used as a fulcrum, and the light source unit body 2 is rotated in the opening direction, and then the light source unit body 2 is removed from the light source unit 2 The mounting member 1 is removed to open the front surface side of the mounting member 1. Next, the operation lever provided on the adapter A is operated to release the engagement portion A1 of the adapter A, whereby the attachment member 1 can be removed.

In this manner, the light source unit main body 2 is attached to the front surface side of the mounting member 1 so as to be openable and closable and detachable.

In the mounted state of the illuminating device as described above, the electric wires of the power receiving connector Cn2 are housed and held in the device without being accidentally exposed, so that the wiring process can be smoothly performed.

Further, the lighting device 3 is disposed on the side of the mounting member 1. Therefore, the weight of the light-retaining portion main body 2 side of the attachment member 1 is reduced, and the load on the clamped fitting 12, the attachment fitting 13, the locking fitting 75, and the attachment fitting 76 constituting the locking engagement unit is reduced, and the strength is reduced. Favorable.

Next, the connection detecting unit 100 will be described with reference to Fig. 11 . Fig. 11 is a view showing a schematic block configuration.

The lighting device 3 includes a lighting circuit 31 and a control circuit 32. The power supply connector Cn3 is connected to the lighting device 3. Further, as described above, the plurality of light-emitting elements 72 are connected to the light source unit 7, and the light source unit 7 is connected to the power receiving connector Cn2 via the connection detecting unit 100.

The connection detecting unit 100 is a connector connection detecting unit that detects whether the power receiving connector Cn2 is normally connected to the power supply connector Cn3 or is not completely connected.

In this manner, the lighting device 3 on the side of the mounting member 1 and the light source unit 7 on the side of the light source unit 2 are connected via the connection unit (the power receiving connector Cn2 and the power supply connector Cn3) and the connection detecting unit 100.

A voltage monitoring circuit is provided in the connection detecting unit 100 to monitor the potential across the connecting unit. In other words, when the potential of the connection unit is high, it is determined that the connection between the power receiving connector Cn2 and the power supply connector Cn3 is incomplete, and the status signal is transmitted to the control circuit 32. The control circuit 32 receives the status signal and sends a signal to stop the supply of power to the lighting circuit 31. Thereby, the supply of electric power to the light source unit 7 is stopped.

On the other hand, when the potential of the connection unit is low, it is determined that the connection between the power receiving connector Cn2 and the power supply connector Cn3 is normal, and the process of continuing to supply power to the light source unit 7 is performed.

When the connection between the power receiving connector Cn2 and the power supply connector Cn3 is incomplete, there arises a problem that the connecting portion generates heat.

However, according to the above configuration, heat generation at the connection portion can be avoided, and safety can be ensured.

Further, for example, the temperature detecting element can be used to sense the heat generated in the connection portion, and the connection state between the power receiving connector Cn2 and the power supply connector Cn3 can be detected. The configuration of the connection detecting unit 100 is not limited to a special configuration. .

In the mounted state of the illumination device, for example, after 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 the light-emitting elements are turned on by the lighting device 3. 72 for lighting control. Light emitted from the light-emitting element 72 is incident on the light guide The light incident end surface 81 of the plate 8 is totally reflected in the light guide plate 8 and spreads over the entire light guide plate 8, and emits light from the front surface side, which is reflected by the reflection surface formed on the back side. The dot pattern or the reflection sheet is reflected and diffused, and then diffused by the diffusion cover 10 to become uniform.

In this case, the light guide plate 8 includes the mounting portion 4 to cover the front surface side of the mounting member 1. In other words, in the light guide plate 8, an opening of a central portion that can operate 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 brightness of the light-emitting surface can be made uniform, a good light distribution state can be achieved, and the brightness can be improved.

It is assumed that when an opening is formed in the central portion of the light guide plate 8, the opening is a portion where light is not guided, and a phenomenon occurs in which the portion becomes dark and the central portion becomes a dark portion.

Further, after 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 is radiated from the periphery of the mounting portion 4 by the translucent cover 53. Illuminate to the ceiling. Therefore, the ceiling surface becomes brighter, and the brightness of the space can be improved.

When each of the light-emitting elements 72 in the light source unit 7 is turned on, heat is generated from each of the light-emitting elements 72. The heat generated by each of the light-emitting elements 72 is mainly released from the back side of the substrate 71 to the mounting plate 73 as a heat dissipating member. In this case, since the attachment plate 73 is disposed so as to be exposed to the outside from the mounting member 1 , the external air easily acts to cool the mounting plate 73 , thereby effectively Cooling.

As described above, according to the present embodiment, the mounting member 1 can be surely made The side is electrically connected to the side of the light source unit body 2, thereby ensuring safety. Further, it is possible to provide an illuminating device in which the electric wires of the illuminating device are not accidentally exposed, and the wiring process can be smoothly performed.

Further, in the above-described embodiment, the hinge structure is applied as the locking engagement unit, 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 jig may be provided on the opposite sides of the outer frame so that the light source unit body can be attached to the mounting member or the light source unit body can be detached from the mounting member. In this case, the front surface side of the mounting member can also be opened and closed by the light source unit body. As such, the locking engagement unit can be applied to various configurations, and is not particularly limited to a specific configuration.

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

In the above-described embodiment, the case has been described. In this case, the light guide plate formed into a quadrangular shape is used, and the light-emitting surface is formed into a substantially square shape. However, for example, the light guide plate may be formed into a hexagonal shape or In the octagonal shape or the like, the light-emitting elements are arranged corresponding to the respective sides, and the front frame is formed into a circular shape, and the light-emitting surface of the light guide plate is exposed in a circular shape to form a circular light-emitting surface.

Further, the 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, it is suitable for a case where a light-emitting element such as an LED is used as the light source, but is not particularly limited. Also suitable for use as a light-emitting element using a fluorescent lamp or the like Case.

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‧‧‧Diffuser cover

11, 35c‧‧‧ openings

12‧‧‧Bucked accessories

13, 76‧‧‧Installation accessories

31‧‧‧Lighting circuit

32‧‧‧Control circuit

35‧‧‧Lighting device cover

35a‧‧‧ side wall

35b‧‧‧back wall

36‧‧‧Flexible components

41‧‧‧Card

51‧‧‧Substrate

52‧‧‧Lighting elements

53‧‧‧Translucent cover

71‧‧‧Substrate

72‧‧‧Lighting elements (LED)

73‧‧‧ Heat dissipating components (mounting plate)

75‧‧‧Card accessories

81‧‧‧Light incident end face

85‧‧‧Diffusion members

91‧‧‧External framework

92‧‧‧ front frame

93‧‧‧Transparent framework

100‧‧‧Connection detection unit

101‧‧‧ circuit board

A‧‧‧Adapter/Part

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 unit (power receiving connector)

Cn3‧‧‧Power supply connection unit (power supply connector)

P‧‧‧Connecting section (connection interface of power supply connector Cn3)

Rc‧‧Infrared remote control transmitter

S‧‧‧Mounting screws

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.

Fig. 3 is a plan view showing the back side of the lighting device.

Fig. 4 is a perspective view showing the light source unit body in the lighting device in an exploded manner.

Fig. 5 is a cross-sectional view taken along line Y-Y of Fig. 3.

Fig. 6 is an enlarged view showing a portion A in Fig. 5;

Fig. 7 is a cross-sectional view showing a state in which the illuminating device is mounted on a ceiling surface, and shows a state in which the mounting member is attached to the ceiling surface.

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

Fig. 9 is a plan view showing the diffusing cover and the light guide plate in the illuminating device removed and viewed from the front surface side.

FIG. 10 is a perspective view showing the mounting member viewed from the front surface side in order to show the arrangement relationship of the electric wires that are led out from the light source unit and connected to the power receiving connector in the lighting device.

Fig. 11 is a schematic block configuration diagram of the lighting device.

1‧‧‧Installation components

2‧‧‧Light source body

4‧‧‧Installation section (adapter guide)

6‧‧‧Auxiliary parts unit

7‧‧‧Light source department

12‧‧‧Bucked accessories

75‧‧‧Card accessories

92‧‧‧ front frame

100‧‧‧Connection detection unit

101‧‧‧ circuit board

C‧‧‧Installation surface (ceiling surface)

Cn0‧‧‧Power receiving connector

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

Cn3‧‧‧Power supply connection unit (power supply connector)

P‧‧‧Connecting section (connection interface of power supply connector Cn3)

Claims (3)

A lighting device, comprising: a mounting member having a mounting portion for mounting on a mounting surface of the device at a central portion; a light source portion having a light source portion and being closably mounted to a front surface of the mounting member a power supply and power receiving connection unit electrically connecting one side of the mounting member to one side of the light source unit body; and a connection detecting unit connected to the power supply and power receiving connection unit Between the light source sections. The lighting device according to claim 1, wherein the power supply connecting unit in the power supply and power receiving connection unit has a connecting portion formed on one side surface, the connecting portion being oriented orthogonal to the front surface side direction. The direction is directed to the mounting member in a direction that does not face the direction in which the power receiving connection unit in the power supply and power receiving connection unit is directed. The illuminating device according to claim 2, wherein the light source unit body includes: a polygonal light guide plate having a light incident end surface at an outer peripheral portion; and a light emitting element to cause the emitted light to be incident on the light guide plate The light incident end surface is disposed such that the power receiving connecting unit is led out from the vicinity of a corner portion of the polygonal light guide plate by an electric wire.