TW201315942A - Illumination apparatus - Google Patents

Abstract

An illumination apparatus is provided. A center portion of the illumination apparatus can be free from being a darkness portion so as to unify a light intensity of an illuminating face and enhance a sense of brightness. The illumination apparatus of this invention includes an installing component (1) and a light source main body (2). The installing component (1) has an installing portion (4) approximately disposed at a center portion thereof, and the installing portion (4) is used for being installed at an apparatus installing surface (C). The light source main body (2) has a light guide plate (6) and a light emitting device (51), and the light source main body (2) is capable of opening and closing and is installed at a front surface side of the installing component (1). The light guide plate (6) has a light incident end surface (61) at its outer peripheral and is configured for covering the front surface side of the installing component (1) including the installing portion (4). The light emitting device (51) is configured for emitting a light into the light incident end surface (61) of the light guide plate (6).

Description

Lighting device

An embodiment of the present invention relates to an illumination device that uses a light-emitting element such as a light-emitting diode (hereinafter referred to as an LED (Light Emitting Diode)) as a light source and illuminates using a light guide plate.

Recently, with the increase in output and efficiency of LEDs, an illumination device that uses an LED as a light source and is used indoors or outdoors and can be expected to have a long life has 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.

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

In the case of such a lighting device, for example, an adapter is electrically and mechanically connected to a wiring device provided on a ceiling surface, that is, a ceiling lamp holder main body, and an illuminating device is mounted on the adapter. Ontology. Therefore, in order to be able to operate the adapter or the like when attaching or detaching the illuminating device body, an opening is formed in the central portion of the light guide plate corresponding to the adapter.

Prior technical literature Patent literature

Patent Document 1: Japanese Patent Laid-Open Publication No. 2011-171146

Patent Document 2: International Publication No. 2011/081246

However, in the illumination device as described above, the opening of the central portion formed corresponding to the adapter is such that the light is not guided by the light, and the portion is darkened, and the central portion becomes a dark portion.

The present invention has been made in view of the above problems, and an object of the invention is to provide an illumination device capable of avoiding a phenomenon in which the central portion becomes a dark portion, and can uniformize the brightness of the light-emitting surface to improve the brightness feeling.

An illuminating device according to an embodiment of the present invention includes a mounting member having a mounting portion for mounting on a device mounting surface at a substantially central portion. Further, the illuminating device includes a light source unit that is detachably attached to the front surface side of the mounting member, and the light source unit includes a light guide plate and a light emitting element, and the light guide plate has a light incident end surface on the outer peripheral portion, and is mounted The portion is disposed to cover the front surface side of the mounting member, and the light emitting element is disposed such that the emitted light is incident on the light incident end surface of the light guide plate.

According to the embodiment of the present invention, it is possible to provide an illumination device which can uniformize the brightness of the light-emitting surface to improve the brightness feeling.

The illuminating device according to the present embodiment is a form that is attached to a ceiling holder main body as a wiring device, and is used to illuminate, for example, a room using a light guide plate. The ceiling lamp holder main body as a wiring device is provided on the device mounting surface. .

Hereinafter, an embodiment of the present invention will be described with reference to Figs. 1 to 8 . another In the drawings, the same portions are denoted by the same reference numerals, and the repeated description is omitted.

As shown in FIGS. 1 to 5 , the illuminating device includes a mounting member 1 and a light source unit body 2 . In the mounting member 1, an adapter guide as the lighting device 3 and the mounting portion 4 is disposed.

Further, the light source unit main body 2 includes a light source unit 5, a light guide plate 6, a support chassis 7, a main body frame 8, and an auxiliary unit 9, which is provided with a plurality of electric auxiliary parts. .

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 It is installed on the ceiling surface C as the mounting surface of the device. 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 device main body which is formed in a substantially square shape by a flat plate of a metal material such as a cold-rolled steel sheet, and has a convex shape on the back side, and is specifically a chassis. A circular opening 11 is formed in a substantially central portion, and the opening 11 is provided with a mounting portion 4 which will be described later, and the mounting portion 4 faces the ceiling holder main body Cb and the adapter A provided on the ceiling surface C.

Further, at two portions of the opening edge portion on the opposite side (the left side in the drawing) of the attachment member 1, a card that is bent into a key shape and protrudes outward is attached by a fixing device such as a screw. The accessory 12 is accepted. On the other hand, on the other side (on the illustration, the right side) In the same manner, the two portions of the rim portion are attached to the engagement receiving fitting 13 that protrudes toward the back side by a fixing means such as a screw so as to face the engaging receiving member 12.

Further, on the back side of the mounting member 1, a packing P made of a sponge is attached.

The lighting device 3 is mounted in the mounting member 1, and the lighting device 3 includes a circuit board 31 and circuit components 32 mounted on the circuit board 31. The circuit board 31 is made of an insulating material such as glass epoxy resin and formed into a plate shape, and a control integrated circuit (IC), a capacitor (condenser), and a winding part are mounted on the surface side. Circuit components 32 such as resistive elements. Further, the power supply connector Cn2 and the power supply connector Cn2 are provided to be connected to the power receiving connector Cn1 connected to the power supply side (the adapter A side) and the load side, that is, the light source unit 5 side. It is connected to the circuit board 31 and is led out by the wire L1 which is a member for wiring connection. Further, on the back side of the circuit board 31, a component having a relatively small height dimension such as a switching element or a surface mounting component is attached.

In the drawing, the circuit board 31 has a surface side as a lower side, and is attached to the inside of the mounting member 1 and around the opening 11 by a resin fixing member 31a. The resin fixing member 31a is disposed such that the front end thereof protrudes from the back surface side toward the front surface side of the mounting member 1, and the resin fixing member 31a is press-fitted into the mounting hole formed by the circuit board 31.

Further, in the mounted state of the circuit board 31, the power receiving connector Cn1 is located on the inner peripheral side of the opening 11, and the power supply connector Cn2 is located. On the outer side.

The lighting device 3 as described above is electrically connected to the adapter A side to the power receiving connector Cn1 and connected to the commercial AC power supply via the adapter A as will be described later. 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 5 from the wire L1 via the power supply connector Cn2.

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. The adapter guide portion is formed in a substantially quadrangular shape having a small thickness dimension, and a circular engagement opening 41 through which the adapter A is inserted and engaged is provided at the center portion. The adapter guiding portion is disposed corresponding to the opening 11 formed at a substantially central portion of the mounting member 1.

Further, the mounting portion 4 is not necessarily a member called an adapter guide 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.

Next, the light source unit main body 2 includes a light source unit 5, a light guide plate 6, a support chassis 7, a main body frame 8, and an auxiliary component unit 9.

As shown in FIGS. 2 to 5, the light source unit 5 includes a substrate 52 on which the light-emitting element 51 is mounted, and a mounting plate 53 as a mounting member on which the substrate 52 is mounted.

As shown in FIG. 4, the substrate 52 is formed into a horizontally long rectangular shape and includes a flat plate of glass epoxy resin as an insulating material on the surface side. A wiring pattern formed of a copper foil is applied, and a resist layer is appropriately laminated on the wiring pattern. Further, when the material of the substrate 52 is an insulating material, a ceramics material or a synthetic resin material can be applied. Further, when it is made of a metal, a base substrate made of a metal substrate having a good thermal conductivity and excellent heat dissipation properties such as aluminum and laminated with insulation may be applied. Floor.

The light-emitting element 51 is an LED and is a surface mount type LED package. The LED package is linearly arranged along the longitudinal direction of the substrate 52, and is 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.

The LED chip is an LED chip that emits blue light. A phosphor is mixed in the translucent resin, and a yellow phosphor is used to emit white light, and the yellow phosphor emits yellow light having a complementary color relationship with the blue light.

Further, the LED is such that the LED chip can be directly mounted on the substrate 52, and a bullet-type LED can be mounted. The mounting method or form is not particularly limited.

The mounting plate 53 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 53, the substrate 52 is attached by screwing or the like so that the back side thereof is in close contact with each other. Therefore, the light source portion 5 is mounted on the mounting plate 53. The board 52 is unitized.

In the present embodiment, as shown in FIG. 4, two unit light source units 5 are used, and are disposed corresponding to the opposite sides of the light guide plate 6. Further, the unitized light source units 5 are electrically connected to each other via the wire L2, and further, the light source unit 5 is provided with a power receiving connector Cn3 that is connected to the substrate 52 and that is led out by the wire L3.

Further, the unitized light source unit 5 may be disposed corresponding to each side of the light guide plate 6, and may be appropriately selected depending on the design.

The light guide plate 6 is formed into a flat plate shape having a rectangular shape by using a material having a high transmittance such as an acryl resin, and a dot pattern is formed on the entire back surface side by printing, and the dot pattern includes light diffusion. A plurality of white dots are provided and a reflective sheet is provided. Further, a diffusion sheet is provided on the entire surface on the front surface side. Further, the outer peripheral portions of the light guide plate 6, that is, the opposite side end faces of the side end faces of the sides of the quadrangular shape are incident of light incident on the light guide plate 6 as incident from the light emitted from the light emitting element 51. The end face 61 functions.

The substrate 52 of the light source unit 5 is disposed on the light incident end surface 61 of the light guide plate 6. In other words, as shown in FIG. 5, the plurality of light-emitting elements 51 are linearly arranged and arranged on the substrate 52 so that light enters the light incident end surface 61 of the light guide plate 6. Moreover, the light guide plate 6 covers the mounting portion 4 to cover the front surface side of the mounting member 1.

The support chassis 7 also serves as a heat dissipation member and functions as a heat dissipation member. The support chassis 7 is made of a metal material such as aluminum having thermal conductivity, and has a relatively large area and is formed in a substantially square shape, and has a square shape on the back side. A shallow disk-shaped recess 71 having a shape is formed on each side of the recess 71 with a mounting piece 72 that is bent outward in a stepped manner. Further, the front surface side of the concave portion 71 is configured to support the support surface of the light guide plate 6.

The main body frame 8 is made of a synthetic resin such as acrylonitrile butadiene styrene (ABS) resin or polycarbonate, and is formed in a substantially square shape and larger than the light guide plate 6 As shown in FIG. 5, the main body frame 8 includes a side wall 81 and a bottom wall 82 having an inclined portion extending obliquely downward from the lower end portion of the side wall 81 toward the inner side, and further toward the frame shape. The inside is erected obliquely. Further, a plurality of bosses 83 are erected on the bottom wall 82, and the attachment piece 72 supporting the chassis 7 is screwed to the projections 83.

Further, at two portions of the edge portion on the opposite side (the left side in the drawing) of the main body frame 8, a card having an engagement hole 85a and protruding outward is attached by a fixing device such as a screw. Accessories 85. On the other hand, the engaging fittings 86 are attached to the two portions of the edge portion on the other side (the right side in the drawing) so as to face the engaging fitting 85. The engaging member 86 is a clamp fitting, is formed in a curved shape and has elasticity, and is provided with an engaging portion 86a on the distal end side and rotatably supported by the main body frame 8.

The engagement fittings 85 and 86 are disposed so as to face the engagement receiving fittings 12 and 13 provided on the attachment member 1 described above, and are engaged with the engagement receiving fittings 12 and 13 in a manner to be described later in detail. .

Further, in the present embodiment, the engaging members 85 and 86 and the engaging and receiving fittings 12 and 13 constitute an engaging device.

The auxiliary component unit 9 is configured to include a unit substrate and a plurality of electrical auxiliary components mounted on the substrate in a case of a horizontally long box. The electric auxiliary component in the present embodiment is an infrared remote control signal receiving unit, an overnight light (all night light), or a channel setting switch.

The auxiliary component unit 9 is disposed on an outer peripheral edge portion of the illumination device, and specifically, is disposed on an outer peripheral edge portion of the main body frame 8. Therefore, the auxiliary part unit 9 is disposed outside the light-emitting area of the light guide plate 6. The auxiliary component unit 9 configured in this manner is provided by concentrating a plurality of electrical auxiliary components and is mounted in the main body frame 8.

As shown in FIG. 2 and 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. On both sides of the peripheral wall, a pair of engaging portions A1 are provided so as to always protrude toward the outer peripheral side by a built-in spring. The engaging portion A1 is immersed by operating the lever provided on the lower surface side.

Further, from the adapter A, a power supply line (cord) L4 (not shown) connected to the lighting device 3 is connected, and a power supply connector Cn4 is connected to the front end portion of the power supply line L4. The power connector Cn4 is connected to the power receiving connector Cn1 provided in the lighting device 3.

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, and a night button. And the light-off button, etc. By operating the infrared remote control transmitter Rc toward the auxiliary component unit 9, that is, the infrared remote control signal receiving unit, it is possible to operate The light-emitting state of the light-emitting element 51 in the light source unit 5 is controlled, that is, the control of the all-light lighting, the dimming lighting, the light-off, and the like can be performed.

In the illuminating device configured as described above, as shown in FIGS. 2 and 5, the support chassis 7 functioning as a heat dissipating member is disposed on the back side of the light guide plate 6, and is screwed and attached to the main body. A plurality of protrusions 83 of the frame 8. In this state, the mounting piece 72 of the support chassis 7 is in surface contact with the upper surface of the mounting plate 53 in the light source portion 5 and is thermally coupled. Therefore, the attachment piece 72 becomes a thermal joint portion of the light source portion 5 and the support chassis 7.

Further, as shown in FIG. 5, the outer peripheral edge portion on the front surface side of the light guide plate 6 is supported by the inclined portion of the bottom wall 82 in the main body frame 8. On the other hand, as described above, the support chassis 7 is disposed on the back side of the light guide plate 6, and the light guide plate 6 is sandwiched between the support chassis 7 and the inclined portion of the bottom wall 82 of the main body frame 8. Configuration. In this state, the light incident end surface 61 of the light guide plate 6 is provided to face the light-emitting element 51, and the light emitted from the light-emitting element 51 is incident on the light incident end surface 61.

Next, the mounting procedure of the illuminating device configured as described above to the ceiling surface C will be described with reference to FIGS. 2 and 3 and 6 to 8.

First, as shown in FIG. 3, the ceiling lamp holder main body Cb is provided in the ceiling surface C. Further, the adapter A is electrically and mechanically connected to the ceiling holder main body Cb.

In this state, as shown in FIG. 6, the mounting member 1 side is attached to the adapter A. 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 adapter A The engagement part A1 does 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 Cn4 led from the adapter A is connected to the power receiving connector Cn1 of the lighting device 3.

Next, the light source unit body 2 side is attached to the mounting member 1. As shown in FIG. 7, the key-shaped engagement receiving fitting 12 of the attachment member 1 is inserted into the engagement hole 85a of the engagement fitting 85 of the main body frame 8, and the engagement fitting 85 is hooked and supported. Subsequently, the power supply connector Cn2 derived from the lighting device 3 is connected to the power receiving connector Cn3 that is led out from the light source unit 5. At this time, as shown in FIG. 6, the power supply connector Cn2 derived from the lighting device 3 is lowered downward due to its own weight, so that the power supply connector Cn2 is connected to the power receiving connector Cn3 led from the light source unit 5. It's easy.

Then, as shown in FIG. 8, the light source unit main body 2 is rotated with the engaging fitting 85 side as a fulcrum, and is blocked so as to cover the front surface side of the mounting member 1. In this state, the engaging fitting 86 supported by the main body frame 8 is rotated, and the engaging portion 86a is engaged with the engaging receiving fitting 13 that protrudes toward the back side with a predetermined elastic force. This state is the installation completion state (refer to FIG. 2).

In the mounted state of the lighting device, the adapter A is inserted into the opening 11 of the mounting member 1, and the engaging portion A1 of the adapter A is engaged with the engaging opening 41 of the adapter guiding portion, and is provided on the mounting member 1. The spacer P on the back side is elastically deformed to be interposed between the back side of the mounting member 1 and the ceiling surface C in a compressed state. Therefore, the lighting device is firmly and firmly engaged with the adapter A, thereby stably maintaining the mounted state.

Moreover, when the lighting device is disassembled, roughly, the rotation is made by the body frame 8 The supported engaging member 86 releases the engagement with the engagement receiving fitting 13 , and the light source unit body 2 is detached from the mounting member 1 to open the front surface side of the mounting member 1 . Then, the operating lever provided on the adapter A is operated to release the engagement of the engaging portion A1 of the adapter A, so that the mounting 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 mounted state of the lighting device as described above, 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 2 coupled to the mounting member 1 is reduced, and the load applied to the engaging members 85 and 86 and the engaging and receiving fittings 12 and 13 constituting the engaging device is reduced, thereby becoming stronger in strength. advantageous.

Further, the power receiving connector Cn1 provided in the lighting device 3 is located on the inner peripheral side, and the power supply connector Cn2 is located on the outer peripheral side. Therefore, the power receiving connector Cn1 is located close to the adapter A, and the power supply connector Cn2 is located. Near the light source section 5.

Therefore, the distances are shortened, and the wire L1 or L3 which is a member for wiring connection can be shortened, and the connection work becomes easy. Further, the wiring connecting member such as the connector is disposed on the side of the engaging fitting 85 and the engaging receiving fitting 12 which are the pivot points of the light source unit main body 2, and thus the light source unit realized by the engaging device. In the relationship of the turning operation of the main body 2, the wire L1 or L3 can also be shortened (see Fig. 7).

In addition, the wire L1 and the wire L3 may be provided only by one, and only the connector is provided for the other. For example, the wire L3 may not be provided, but in the light source section. The power receiving connector Cn3 is directly mounted on the substrate 52 of 5.

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 elements 51 are energized via the substrate 52, and each of the light-emitting elements 51 is lighted by the lighting device 3. The light emitted from the light-emitting element 51 is incident on the light incident end surface 61 of the light guide plate 6, and the incident light is totally reflected in the light guide plate 6, and spreads to the entire light guide plate 6, and is formed of a reflection point formed on the back side. The dot pattern or the reflective sheet reflects and diffuses, thereby radiating the homogenized light from the front surface side.

At this time, since the light guide plate 6 covers the front surface side of the mounting member 1 by including the mounting portion 4, a dark portion is not generated in the central portion of the light guide plate 6, that is, the brightness of the light emitting surface can be made uniform. A good light distribution state can be achieved, and the brightness feeling can be improved.

Further, the heat generated from each of the light-emitting elements 51 is conducted from the back side of the substrate 52 to the mounting plate 53, and is then conducted to the support chassis 7, thereby efficiently dissipating heat by the large area of the support chassis 7.

As described above, according to the present embodiment, it is possible to provide an illumination device in which a dark portion is not generated in the central portion of the light guide plate 6, and the luminance of the light-emitting surface can be made uniform to improve the brightness feeling.

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.

For example, in the above-described embodiment, the case where the lighting device is disposed on the side of the mounting member has been described. However, the lighting device may be disposed on the main body side of the light source unit.

Further, as the engaging device, a hinge structure may be applied, and the light source unit body may be attached to the front surface side of the mounting member in an openable and closable manner. Further, for example, a jig fitting may be provided on both opposite sides of the main body frame, and the light source unit main body may be detachably attached 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 engaging device can be applied to various structures, and is not particularly limited.

Furthermore, 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. The light-emitting elements are arranged corresponding to the respective sides thereof, and the body 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.

1‧‧‧Installation components

2‧‧‧Light source body

3‧‧‧Lighting device

4‧‧‧Installation section (adapter guide)

5‧‧‧Light source department

6‧‧‧Light guide plate

7‧‧‧Supporting chassis

8‧‧‧ body frame

9‧‧‧Auxiliary parts unit

11‧‧‧ openings

12, 13‧‧‧Card accepting accessories

31‧‧‧ circuit board

31a‧‧‧Resin fixing parts

32‧‧‧ circuit parts

41‧‧‧Card

51‧‧‧Lighting elements (LED)

52‧‧‧Substrate

53‧‧‧Installation components (mounting plate)

61‧‧‧Light incident end face

71‧‧‧ recess

72‧‧‧Installation

81‧‧‧ side wall

82‧‧‧ bottom wall

83‧‧‧ bumps

85, 86‧‧‧Card Accessories

85a‧‧‧Snap hole

86a, A1‧‧‧Clock Department

A‧‧‧ Adapter

C‧‧‧Installation surface (ceiling surface)

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

Cn1, Cn3‧‧‧ power receiving connector

Cn2‧‧‧ Wiring connection member (power supply connector)

Cn4‧‧‧Power connector

L1, L2, L3‧‧‧ wires

L4‧‧‧Power cord

P‧‧‧ cushion

Rc‧‧‧Infrared remote control transmitter

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

2 is a cross-sectional view showing a state in which the lighting device according to the embodiment of the present invention is attached to a ceiling surface.

Fig. 3 is a cross-sectional view showing the mounting member separated from the light source unit body in the state of Fig. 2;

4 is a perspective view showing the main body of the light source unit in the illumination device according to the embodiment of the present invention.

Fig. 5 is an enlarged view showing a portion A in Fig. 2;

FIG. 6 is a cross-sectional view showing a state in which the mounting member is attached to the ceiling surface in the lighting device according to the embodiment of the present invention.

FIG. 7 is a cross-sectional view showing an initial stage of mounting the light source unit on the mounting member in the mounting order of the lighting device according to the embodiment of the present invention.

Fig. 8 also shows a cross-sectional view showing a process of mounting the light source unit on the mounting member in the mounting order of the lighting device to the ceiling surface.

1‧‧‧Installation components

2‧‧‧Light source body

3‧‧‧Lighting device

4‧‧‧Installation section (adapter guide)

5‧‧‧Light source department

6‧‧‧Light guide plate

7‧‧‧Supporting chassis

8‧‧‧ body frame

9‧‧‧Auxiliary parts unit

11‧‧‧ openings

12, 13‧‧‧Card accepting accessories

31‧‧‧ circuit board

31a‧‧‧Resin fixing parts

32‧‧‧ circuit parts

41‧‧‧Card

71‧‧‧ recess

72‧‧‧Installation

85, 86‧‧‧Card Accessories

85a‧‧‧Snap hole

86a, A1‧‧‧Clock Department

A‧‧‧ Adapter

C‧‧‧Installation surface (ceiling surface)

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

Cn2‧‧‧ Wiring connection member (power supply connector)

Cn3‧‧‧Power receiving connector

Cn4‧‧‧Power connector

L1‧‧‧ wire

L4‧‧‧Power cord

P‧‧‧ cushion

Claims (3)

A lighting device includes: a mounting member having a mounting portion for attaching to a mounting surface of the device at a central portion; and a light source portion having a light guide plate and a light emitting element, wherein the light source portion is detachably attached to the device The light guide plate has a light incident end surface on the outer peripheral portion of the front surface side of the mounting member, and is disposed to cover the front surface side of the mounting member including the mounting portion, the light emitting element The emitted light is incident on the light incident end surface of the light guide plate. The lighting device according to claim 1, wherein a lighting device that performs lighting control of the light emitting element is disposed on the mounting member side. The illuminating device according to claim 2, wherein a wiring connecting member connected to the light-emitting element is provided on an outer peripheral side of the lighting device.