TWI525291B - Lighting apparatus - Google Patents

Description

Lighting fixture

Embodiments of the present invention relate to a lighting fixture that uses a light emitting element such as a light emitting diode (LED) as a light source.

In a lighting fixture for general household use, a fluorescent lamp is used as a main light source, and a lighting fixture which covers the lower side of the annular fluorescent lamp is widely used. In a manner, a cover member (shade) is provided, and the outer shape is configured to be circular.

In recent years, with the increase in output, efficiency, and generalization of light-emitting elements such as LEDs, the lighting fixtures for general households have been developed as described above, and the lighting fixtures for general household use light-emitting elements as light sources. Long life can be expected.

On the other hand, in a light-emitting element such as an LED, as the temperature rises, the output of light decreases, and the number of years of durability becomes shorter. Therefore, in order to extend the durability of the lighting fixture such as an LED or an electroluminescence (EL) element or the like as a light source, it is necessary to suppress an increase in the temperature of the light-emitting element.

In the past, as a lighting fixture for a general house using an LED as a light source, for example, there is a lighting fixture provided around a mounting portion of a ceiling mounted on a ceiling surface. A lighting device that controls lighting of an LED, and a plurality of LEDs are disposed on the outer periphery of the lighting device. The LED is arranged to emit light toward the outer peripheral side in the lateral direction, and the emitted light is reflected by the reflecting plate provided on the ceiling surface side, and then irradiated to the front surface side.

In addition, in order to use a light-emitting element as a light source and to configure a lighting fixture in the same manner as a lighting fixture using a ring-shaped fluorescent lamp as in the related art, for example, it is necessary to mount the hanging ceiling body provided on a ceiling surface. A plurality of light-emitting elements are disposed around the portion, and the light emitted from the light-emitting elements is irradiated to a predetermined range immediately below.

As described above, when a plurality of light-emitting elements are disposed around the mounting portion as a light source, the lighting fixture can be realized in the same manner as in the case of using a conventional circular fluorescent lamp, and long life can be expected. Or thinning.

In addition, in a lighting fixture that can be expected to have a long life by using a light-emitting element as described above, the necessity of replacing the light source or cleaning the inside due to maintenance is small, and therefore, fixing by screws or the like is required. The unit fixes the cover member to the body side, and the cover member covers the light-emitting element as a light source from the lower side.

[Previous Technical Literature] [Non-patent literature] [Non-Patent Document 1] Sharp/LED Ceiling Light [Searched on January 6, 2013] (http://www.sharp.co.jp/corporate/news/100819-a-2.html)

However, in the conventional lighting fixture described above, the light from the LED emitted in the lateral direction is reflected and then irradiated toward the front surface side. Therefore, the configuration of the lighting fixture may become complicated. Further, since the LED is disposed in the vicinity of the lighting device, the heat generated by the LED and the heat generated by the lighting device interfere with each other, and the temperature of the LED may rise due to the heat.

In addition, when a light-emitting element such as an LED is used as a light source, there is a problem in that the light emitted from the light-emitting element has high directivity and high luminance, so that the graininess is remarkable, and it is difficult to make the brightness uniform, and the light is irradiated. The degree will decrease.

Further, in the lighting fixture, insects or the like may enter the inside of the body from a very small gap between the cover member and the body. In this case, in order to clean the inside, it is necessary to remove the fixing unit such as a screw to disassemble the cover member. This work is a cumbersome task that is time consuming and laborious for the user.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a lighting fixture capable of suppressing an increase in temperature of a light-emitting element by a simplified configuration.

Further, the present invention has been made in view of the above problems, and an object of the present invention is to provide a lighting fixture that can arrange a plurality of light-emitting elements around a mounting portion and can improve uniformity of illumination light. .

Further, the present invention has been made in view of the above problems, and an object of the present invention is to provide a lighting fixture including a light source unit that uses a light emitting element as a light source and that can easily clean the inside.

A lighting fixture according to an embodiment of the present invention includes: a body having a mounting portion facing a wiring tool provided on an instrument mounting surface; and a substrate located around the mounting portion, the mounting surface facing the front surface side, and the back side side It is placed in surface contact with the body. Further, a plurality of light emitting elements are mounted on the substrate.

Further, a lighting fixture according to an embodiment of the present invention includes: a mounting portion facing a wiring fixture provided on an appliance mounting surface; a substrate located around the mounting portion, and a mounting surface disposed to face the front surface side; and assembling a plurality of light emitting elements on the substrate. Further, a lighting fixture according to an embodiment of the present invention includes a diffusing member that continuously covers at least two or more light emitting elements of the plurality of light emitting elements.

Further, a lighting fixture according to an embodiment of the present invention includes a main body having a mounting portion facing a wiring fixture provided on an appliance mounting surface. Further, a lighting fixture according to an embodiment of the present invention includes a light source unit disposed on the main body and having a light emitting element as a light source, and a translucent outer cover member detachably attached to an outer peripheral portion of the main body And covering the light-emitting elements with a predetermined distance apart.

[Effects of the Invention]

According to the embodiment of the present invention, it is possible to provide a lighting fixture that can effectively suppress the temperature rise of the light emitting element.

Further, according to an embodiment of the present invention, it is possible to provide a lighting fixture capable of improving the uniformity of illumination light.

Further, according to the embodiment of the present invention, it is possible to provide a lighting fixture that uses a light-emitting element as a light source and that is detachably attached to the body, so that the inside can be easily cleaned.

Hereinafter, embodiments of the present invention will be described with reference to Figs. 1 to 9(a) and 9(b). In each of the drawings, the wiring connection relationship of a wire or the like may be omitted. In addition, the same portions are denoted by the same reference numerals, and the repeated description is omitted.

The lighting fixture of the present embodiment is a general lighting fixture that is attached to a ceiling-mounted ceiling body as a wiring fixture, and illuminates the room by light emitted from the light source section. The hanging ceiling body is disposed on an appliance mounting surface, and the light source section includes a plurality of light emitting elements mounted on the substrate.

In FIGS. 1 to 4, the lighting fixture includes a main body 1, a light source unit 2, a diffusing member 3, a lighting device 4, a lighting device cover 5, a mounting portion 6, and a cover member 7. In addition, the lighting fixture includes an adapter A electrically and mechanically connected to the hanging ceiling body Cb, and the hanging ceiling body Cb is disposed on a ceiling surface C as an appliance mounting surface. . Such a lighting fixture is formed into a circular circular outer appearance, and the front surface side is an irradiation surface of light, and the back surface side is a mounting surface when it is attached to the ceiling surface C.

As shown in FIG. 2 to FIG. 5, the main body 1 is a chassis formed by forming a flat plate of a metal material such as a cold-rolled steel plate into a circular shape, and a circular opening 11 is formed in a substantially central portion. The shape opening 11 is provided with a mounting portion 6 to be described later. In addition, a stepped portion 13 facing the back surface side is formed on the outer peripheral side of the flat portion 12 on the inner surface side on which the light source unit 2 is mounted, and a groove-shaped recessed portion 14 is formed. Further, a cover supporting member is disposed at the step portion 13, and the cover member 7 is detachably attached to the cover supporting member. More specifically, the cover supporting member is the cover supporting attachment 75 and is disposed in the recess 14 formed by the step portion 13 . Further, an elastic member 15 is provided on the back side of the body 1.

As described with reference to FIG. 6, the light source unit 2 includes a substrate 21 and a plurality of light-emitting elements 22, and the plurality of light-emitting elements 22 are mounted on the substrate 21 (illustration of the light-emitting elements 22 is omitted in FIG. ). The substrate 21 is disposed such that four arcuate substrates 21 having a predetermined width dimension are spliced, and the substrate 21 is formed in a substantially annular shape as a whole. That is, the substrate 21 formed in a substantially annular shape as a whole includes four divided substrates 21.

As described above, by using the divided substrate 21, heat shrinkage can be absorbed by the divided portion of the substrate 21, and deformation of the substrate 21 can be suppressed. Further, it is preferable to use the substrate 21 divided into a plurality of pieces, but it is also possible to use a single substrate which is integrally formed into a substantially annular shape.

The substrate 21 includes a flat plate of a glass epoxy resin (FR-4) as an insulating material, and a wiring pattern is formed on the surface side by a copper foil. Further, a white resist layer is formed on the wiring pattern, that is, on the surface of the substrate 21, and the white resist layer functions as a reflective layer. Further, when the material of the substrate 21 is made of an insulating material, a ceramics material or a synthetic resin material can be applied. Further, when the substrate 21 is made of a metal substrate, a base substrate made of a metal having excellent thermal conductivity and excellent heat dissipation properties such as aluminum or the like can be applied. One side of the base plate is formed.

The light-emitting element 22 is an LED and is a surface mount type LED package. A plurality of rows of the LED packages are mounted along the circumferential direction of the plurality of annular substrates 21, that is, on a substantially circumference centered on the mounting portion 6. In the present embodiment, the LED package is mounted over two rows on the inner circumference side and the outer circumference side. Further, an LED package in which the illuminating color is the daylight color N and an LED package in which the illuminating color is the bulb color L are used as the LED package, the LED packages are alternately arranged, and the adjacent light-emitting elements 22 of the respective columns are substantially separated Arranged at equal intervals. The current or the like flowing into the LED package of the daylight color and the bulb color is adjusted, whereby coloring can be performed.

Further, a light-emitting element 22a for a night illumination lamp is mounted on a specific substrate 21a (the right side in FIG. 3 and the upper right side in FIG. 6). As the light-emitting element 22a, the LED package is used in the same manner as the LED package of the bulb color in the main light source that is mounted in a ring shape. Thereby, the generalization of the components is achieved.

Furthermore, it is not always necessary to assemble the light-emitting elements 22 in a plurality of rows. For example, the light-emitting elements 22 may be mounted in a row along the circumferential direction. The number or number of columns of the light-emitting elements 22 can be appropriately set in accordance with the desired output.

The LED package generally includes an LED chip disposed on a body formed of ceramic or synthetic resin, and a light transmissive resin for a mold such as an epoxy resin or a silicone resin. The LED wafer is sealed. The LED chip is a blue LED chip that emits blue light. A phosphor is mixed into the light-transmitting resin, and light of a daylight color or a bulb color can be emitted.

Furthermore, for the LED, the LED wafer can be directly mounted on the substrate 21, and a bullet-type LED can be mounted. The assembly method or form is not particularly limited.

The diffusion member 3 is a lens member, as described with reference to FIG. 7, which includes, for example, an insulating transparent synthetic resin such as polycarbonate or acryl resin, and The arrangement of the light-emitting elements 22 is integrally formed into a substantially annular shape, and the diffusion member 3 is disposed so as to cover the entire surface of the substrate 21 including the light-emitting elements 22.

As shown in FIG. 5 and FIG. 7 , the lens member has two rib portions 31 continuously formed in the circumferential direction of the substantially annular inner circumferential side portion and the outer circumferential side portion in the circumferential direction. The ridge portion 31 has a mountain shape and is fixed in cross-sectional shape. Inside the rib portion 31, a U-shaped groove 32 is continuously formed in the circumferential direction. Therefore, the U-shaped groove 32 is disposed to face the plurality of light-emitting elements 22, and the plurality of light-emitting elements 22 are housed in the U-shaped groove 32 and covered.

Further, the flat portion 33 is formed, whereby the entire surface of the substrate 21 is covered, and the flat portion 33 extends in the width direction from the ridge portion 31.

According to the lens member configured as described above, as shown in FIG. 5, the light emitted from the plurality of light-emitting elements 22 is diffused and radiated mainly in the circumferential direction and the outer circumferential direction on the circumference by the ridge portion 31. In other words, the light emitted from the light-emitting element 22 is mainly diffused and radiated in the radial direction originating from the annular center of the portion where the light-emitting element 22 is disposed.

Therefore, the uniformity of the irradiation light, which is the irradiation light formed by the light emitted from the plurality of light-emitting elements 22, can be improved by the lens member. Moreover, the graininess caused by the brightness of each of the light-emitting elements 22 can be suppressed. In this case, it is preferable to set the light distribution angle due to diffusion to about 120 to 160 degrees.

Further, since the flat portion 33 is formed in the diffusion member 3 and the entire surface of the substrate 21 is covered, the charging portion is covered by the diffusion member 3 having the reinforced insulating property and protected.

Further, the diffusion member 3 may not be integrally formed in a substantially annular shape. For example, the diffusion member 3 may be formed separately for the substrates 21 corresponding to the divided substrates 21 . In this case, the diffusion member 3 continuously covers the plurality of light-emitting elements 22 mounted on one substrate 21.

Further, the diffusion member 3 is not limited to the lens member, and a diffusion sheet or the like may be applied.

As shown in FIGS. 4 and 5, the light source unit 2 configured as described above is provided so that the substrate 21 is positioned around the mounting portion 6, and the mounting surface of the light-emitting element 22 is disposed toward the front surface side, that is, toward the lower side. direction. In addition, the back surface side of the substrate 21 is attached to the flat portion 12 so as to be in surface contact with the flat portion 12 on the inner surface side of the main body 1. Specifically, the diffusion member 3 is superposed on the substrate 21 from the front surface side of the substrate 21, and the diffusion member 3 is attached to the body 1 by, for example, a fixing unit such as a screw S, whereby the substrate 21 is clamped. It enters between the body 1 and the diffusion member 3 and is pressed and fixed. That is, the substrate 21 and the diffusion member 3 are fastened together by a screw S.

Therefore, the substrate 21 is thermally coupled to the body 1, and heat from the substrate 21 is conducted from the back side to the body 1 to be released. Furthermore, the surface contact of the substrate 21 with the body 1 is not limited to the case where the entire surface of the substrate 21 comes into contact with the body 1. It can also be a partial face contact.

Further, the flat portion 33 in the diffusion member 3 is in surface contact with the mounting surface side of the substrate 21 so as to be in close contact with the mounting surface side of the substrate 21, so that heat is conducted from the mounting surface side of the substrate 21 to the diffusion member. 3, thereby being able to dissipate heat via the diffusion member 3. That is, heat can be dissipated from the front surface side of the substrate 21.

As shown in FIGS. 2 to 4, the lighting device 4 includes a circuit board 41, and an integrated circuit (IC), a transformer, a capacitor, and the like mounted on the circuit board 41. Circuit component 42. The circuit board 41 is formed in a substantially arc shape so as to surround the mounting portion 6, and is electrically connected to the adapter A side, and is connected to the commercial AC power source via the adapter A. Therefore, the lighting device 4 receives the AC power supply to generate a DC output, and supplies the DC output to the light-emitting element 22 via a wire, and performs lighting control on the light-emitting element 22.

The lighting device 4 as described above is disposed between the mounting portion 6 and the light source portion 2 (i.e., the substrate 21).

As shown in FIG. 2 and FIG. 4, the lighting device cover 5 is formed in a substantially short cylindrical shape by a metal material such as a cold rolled steel plate, and is attached to the main body 1 so as to cover the lighting device 4. The side wall 51 is inclined so as to expand toward the back side, and the opening 53 is formed in the front surface wall 52 so as to correspond to the attachment portion 6. Therefore, a part of the light emitted from the light-emitting element 22 is reflected by the side wall 51 toward the front surface side, and is effectively utilized. Further, an arcuate guide recess 54 that is recessed toward the back side is formed on the periphery of the opening 53.

The mounting portion 6 is an adapter guide formed in a substantially cylindrical shape, and an engagement opening 61 is provided in a central portion of the adapter guide, and the adapter A is inserted and engaged with the engagement opening 61. The adapter guide is disposed to correspond to the opening 11 formed in the central portion of the body 1. A base is formed on the outer peripheral portion of the adapter guide so as to protrude from the outer peripheral portion, and an electric device such as an infrared remote control signal receiving portion or an illuminance sensor is disposed on the base. Auxiliary part 62.

Furthermore, the mounting portion 6 does not necessarily have to be a member referred to as an adapter guide or the like. The mounting portion 6 may be, for example, an opening formed in the main body 1 or the like. In general, the mounting portion 6 refers to a member or a portion that faces the hanging ceiling body Cb as a wiring device and is engaged by the adapter A. .

The cover member 7 is formed into a substantially circular shape by a material having light transmissivity, milky white, and diffusibility such as acrylic resin, and a circular decorative cover 71 having a opaque property is attached to the center portion. Further, in the decorative cover 71, a light receiving window 72 having a substantially triangular shape and having light transmissivity is formed to face the electric auxiliary component 62. Further, at a center of the inner surface side of the cover member 7, a protruding pin 73 protruding in the direction of the inner surface is formed.

Further, the cover member 7 is attached to the outer peripheral edge portion of the main body 1 so as to cover the front surface side of the main body 1 including the light source unit 2. Specifically, as shown in FIG. 8 , the cover member 7 is rotated, and the cover attachment fitting 74 provided on the cover member 7 (shown in FIGS. 9( a ) and 9 ( b ) described later) is engaged. The cover supporting fitting 75 disposed in the recess 14 of the outer peripheral edge portion of the body 1 is attached thereto. Further, when the cover member 7 is removed, the cover member 7 is rotated in a direction opposite to the mounting, and the cover attachment fitting 74 is released from engagement with the cover support fitting 75, whereby the cover member 7 can be removed. .

As described above, in a state where the cover member 7 is attached to the main body 1, mainly as shown in FIG. 4, the inner surface side of the cover member 7 comes into surface contact with the front surface wall 52 of the lighting device cover 5. Therefore, the heat generated by the lighting device 4 or the like can be conducted to the lighting device cover 5, and then the heat can be conducted to the cover member 7, thereby promoting heat dissipation.

Further, the distance between the diffusion member 3 and the cover member 7 is set to 20 mm to 60 mm, preferably 30 mm to 50 mm. Thereby, the uniformity of the irradiation light is good, and the heat conducted from the mounting surface side of the substrate 21 to the diffusion member 3 is effectively released via the cover member 7.

Here, the cover member 7 is rotated to attach the cover member 7 to the main body 1. However, it is necessary to align the position of the light receiving window 72 so as to face the electric auxiliary component 62. Therefore, in the present embodiment, a position limiting unit is configured.

The position limiting unit will be described with reference to Figs. 9(a) and 9(b). FIGS. 9(a) and 9(b) are plan views schematically showing the relative positional relationship between the side of the rotating cover member 7 and the side of the main body 1 in a fixed state.

First, as shown in FIG. 9(a), on the side of the cover member 7, the cover attachment fitting 74 is provided at three places on the back side peripheral portion. Further, a protruding pin 73 is provided at a center portion. On the other hand, on the main body 1 side, a cover support fitting 75 is provided at three places on the outer peripheral edge portion, and a guide recess 54 attached to the lighting device cover 5 of the main body 1 is provided.

In the state shown in Fig. 9(a), the protruding pin 73 is fitted to the guide recess 54 (see Fig. 4 together). Therefore, the cover member 7 is placed at an appropriate position, and the cover member 7 is rotated in the clockwise direction from this state, whereby the protruding pin 73 moves along the guide recess 54 as shown in FIG. 9(b), and The cover mounting fitting 74 is engaged with the cover support fitting 75, and the cover member 7 is attached to the body 1. Further, in the state described above, the light receiving window 72 is located at a position facing the electric auxiliary component 62, for example, so that the infrared remote control signal receiving portion can receive the control signal from the infrared remote control transmitter.

In other words, since the protruding pin 73 is not fitted to the guiding recess 54 at the mounting position where the light receiving window 72 is not located at the position facing the electric auxiliary component 62, the position is restricted so that the cover member 7 cannot be attached to the main body 1.

The adapter A is electrically and mechanically connected to the ceiling-mounted ceiling body Cb provided on the ceiling surface C by a hanging blade provided on the upper surface side, and the adapter A has a substantially cylindrical shape. The pair of locking portions A1 are provided on both sides of the peripheral wall so as to always protrude toward the outer peripheral side by a built-in spring. The operation lever (lever) provided on the lower surface side of the locking portion A1 is operated, whereby the locking portion A1 is immersed in the adapter A. Further, a cord connected to the lighting device 4 is led out from the adapter A, and is connected to the lighting device 4 via a connector (see FIG. 3).

Next, an attachment state when the lighting fixture is attached to the ceiling surface C will be described with reference to Fig. 4 . First, the adapter A is electrically and mechanically connected to the hanging ceiling body Cb, and the hanging ceiling body Cb is previously provided on the ceiling surface C. From this state, while the engagement opening 61 of the adapter guide as the attachment portion 6 is aligned with the adapter A, the instrument body is pushed up by hand from below until the locking portion A1 of the adapter A is securely The grounding is engaged with the engaging opening 61 of the adapter guide to perform the mounting operation. Next, the cover member 7 is attached to the body 1. The mounting completion state is the state shown in FIG. 4. At this time, the elastic member 15 is interposed between the ceiling surface C and the back side of the main body 1 in a sealed state, and the lighting fixture is fixed on the ceiling surface C.

Further, when the lighting fixture is removed, the cover member 7 is removed, and then the operation lever provided on the adapter A is operated to release the engagement portion A1 of the adapter A. The lighting fixture can be removed.

When the lighting fixture is attached to the ceiling surface C, power is supplied to the lighting device 4, and then the light-emitting element 22 is energized via the substrate 21, and each of the light-emitting elements 22 is turned on. The light emitted from the light-emitting element 22 is diffused in the radial direction by the diffusion member 3, and is radiated toward the front surface side, and the diffusion member 3 continuously covers the plurality of light-emitting elements 22. Light emitted from the front surface side is transmitted to the outside through the cover member 7. Therefore, the uniformity of the irradiation light can be improved, and the graininess caused by the brightness of each of the light-emitting elements 22 can be suppressed.

Further, a part of the light toward the inner peripheral side in the radial direction is reflected by the inclined side wall 51 in the lighting device cover 5 to the front surface side, and is effectively utilized.

Further, since the cover supporting attachment 75 is disposed on the step portion 13 formed on the outer circumference of the main body 1, the amount of protrusion protruding toward the front surface side is small, and the cover supporting fitting 75 can be prevented from being light emitted from the light emitting element 22. obstacle.

On the other hand, since the back side of the substrate 21 is in surface contact with the body 1, heat generated by the light-emitting element 22 is efficiently conducted to the body 1 to dissipate heat over a large area. Further, since the step portion 13 is formed along the outer circumference of the substrate 21 in the vicinity of the outer peripheral side of the substrate 21, the heat dissipation area can be increased by the step portion 13, and the heat dissipation of the outer peripheral portion of the body 1 can be achieved. The effect is improved. Further, the step portion 13 can produce an effect of reinforcing the body 1.

Further, since the lighting device 4 is disposed between the mounting portion 6 and the substrate 21, the influence of the heat from the substrate 21 on the lighting device 4 is reduced. The reason is that there is a tendency that the heat of the substrate 21 is conducted toward the outer circumferential direction of the body 1 and then released.

Further, since the cover member 7 comes into surface contact with the lighting device cover 5, the heat generated by the lighting device 4 can be conducted to the lighting device cover 5, and then the heat is transmitted to the cover member 7 and released.

Further, since the flat portion 33 of the diffusion member 3 comes into surface contact with the mounting surface side of the substrate 21, the mounting surface side of the substrate 21 may be radiated from the front surface side via the diffusion member 3. Further, in this case, since the diffusion member 3 covers the entire surface of the substrate 21, the charging portion is protected.

As described above, according to the present embodiment, it is possible to provide a lighting fixture in which the substrate 21 of the lighting fixture is located around the mounting portion 6, and the mounting surface of the light-emitting element 22 is disposed toward the front surface side, so that the configuration is simple and may be The temperature rise of the light-emitting element 22 is suppressed in effect. Further, it is possible to provide a lighting fixture provided with the diffusion member 3 that continuously covers the light-emitting element 22, whereby the uniformity of the irradiation light can be improved.

Further, as described above, according to the present embodiment, it is possible to provide a lighting fixture that uses the light-emitting element 22 as a light source and detachably attaches the cover member 7 to the body 1, so that it is easy to clean the inside. Further, since the cover member 7 has diffusibility, it is possible to diffuse light having high directivity emitted from the light-emitting element 22 to obtain uniform illumination light. Further, since the cover supporting member 75 as the cover supporting member is disposed in the step portion 13, the cover supporting member 75 can be prevented from becoming an obstacle of the light emitted from the light emitting element 22. The present invention is not limited to the configurations of the respective embodiments described above, and various modifications can be made without departing from the spirit and scope of the invention. For example, a solid-state light-emitting element such as an LED or an organic EL can be applied to the light-emitting element. In this case, the number of the light-emitting elements is not particularly limited.

1. . . Ontology

2. . . Light source department

3. . . Diffusion member (lens member)

4. . . Lighting device

5. . . Lighting device cover

6. . . Mounting part (Adapter guide)

7. . . Cover member

11. . . Opening

12, 33. . . Flat part

13. . . Step difference

14. . . Concave

15. . . Elastic member

21, 21a‧‧‧ substrate

22, 22a‧‧‧Lighting elements (LED)

31‧‧‧ 突条部

32‧‧‧U-shaped groove

41‧‧‧ circuit board

42‧‧‧ circuit parts

51‧‧‧ side wall

52‧‧‧ front surface wall

53‧‧‧ openings

54‧‧‧Guide recess

61‧‧‧Clock mouth

62‧‧‧Electrical Auxiliary Parts

71‧‧‧Decorative cover

72‧‧‧light window

73‧‧‧Highlight

74‧‧‧Cover mounting accessories

75‧‧‧Cover support accessories

A‧‧‧Adapter / Part

A1‧‧‧ card stop

C‧‧‧ appliance mounting surface (ceiling surface)

Cb‧‧‧Wiring device (hanging ceiling body)

L‧‧‧ bulb color

N‧‧‧ daylight

S‧‧‧ screws

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

Fig. 2 is an exploded perspective view showing the lighting fixture.

Fig. 3 is a schematic plan view showing the cover member and the lighting device cover in the lighting fixture, as seen from below.

Fig. 4 is a cross-sectional view showing the lighting fixture.

Fig. 5 is an enlarged view showing a portion A in Fig. 4;

Fig. 6 is a plan view showing a substrate in the lighting fixture.

Fig. 7 is a partially enlarged cross-sectional view showing a state in which a light source unit and a diffusing member in the lighting fixture are combined.

FIG. 8 is an explanatory view showing a state in which the cover member in the lighting fixture is rotated to perform an attaching and detaching operation.

9(a) and 9(b) are plan views schematically showing the relative positional relationship when the cover member of the lighting fixture is attached to the main body.

1. . . Ontology

2. . . Light source department

3. . . Diffusion member

4. . . Lighting device

5. . . Lighting device cover

6. . . Installation department

7. . . Cover member

11. . . Opening

12. . . Flat part

13. . . Step difference

15. . . Elastic member

twenty one. . . Substrate

twenty two. . . Light-emitting element

41. . . Circuit substrate

42. . . Circuit part

54. . . Guide recess

61. . . Knitting port

75. . . Cover support fitting

A. . . Adapter / part

A1. . . Clamping part

Cb. . . Wiring device

Claims (3)

A lighting fixture comprising: an appliance body mounted on a wiring fixture, the wiring fixture being disposed on an appliance mounting surface; and a plurality of substrates having a mounting surface on a front surface side and surrounding the mounting portion of the fixture body And a plurality of light-emitting elements as a main light source mounted on the substrate; a lighting device disposed on the device body, the device body receiving AC power via the wiring device and generating a DC output; a connection portion provided on a front surface side of a specific one of the plurality of substrates, and supplies a DC output supplied from the lighting device to the light emitting element; a wiring connection portion with a DC output from the specific The substrate is supplied to the adjacent other substrate, and is provided on the front surface side of the substrate adjacent to each other, and at least on the substrate, compared with the light-emitting element which is the main light source provided at the outermost side Provided not to be located outside the substrate, and the wiring connection portion is provided with a wire disposed to cross the divided portion of the substrate adjacent to each other, Electrically connecting the substrates; and a diffusion member which is a lens member and continuously formed with a ridge portion in a circumferential direction opposite to the plurality of illuminating elements, the ridge portion being mountain-shaped and having a fixed cross-sectional shape . The lighting fixture of claim 1, wherein: the plurality of light emitting components mounted on the substrate are along the device The plurality of rows are mounted in the circumferential direction of the center of the body, and the wiring connection portion is provided in a region between the columns of the columns. The lighting fixture according to the first or second aspect of the invention, wherein the diffusing member is a light transmissive insulating resin, and the front surface side of the substrate covers a plurality of substrates The power supply connection portion, the charging portion of the wiring connection portion, and the substrate.