CN116113792A

CN116113792A - Lighting device

Info

Publication number: CN116113792A
Application number: CN202280006320.0A
Authority: CN
Inventors: 藤原信浓
Original assignee: Fluorescein Lux Co ltd
Current assignee: Fluorescein Lux Co ltd
Priority date: 2021-06-18
Filing date: 2022-03-18
Publication date: 2023-05-12
Also published as: WO2022264586A1; JPWO2022264586A1

Abstract

The invention provides a lighting device with simple structure and high lighting effect by applying effort to a joint structure and a configuration position between a cover and a main body of the lighting device. A lighting fixture (1) of the present invention comprises a mounting member (2) for accommodating a main body (31), a light source supported on the front surface of the main body (31), and a cover (37) for covering the entire surface of the front surface side of the main body (31) so as to surround the entire surface of the front surface side of the main body (31), wherein the main body (31) has protruding portions (32) protruding toward the light irradiation surface side at both edge portions in the longitudinal direction, the cover (37) is a long member having a substantially uniform cross section, the front surface portion (37A) having a curved surface on the light irradiation surface side, a substantially vertical wall portion (37B) and an edge portion (37D), and the protruding portions (32) of the main body (31) and the edge portion (37D) of the cover (37) are engaged with each other, thereby fixing the cover (37) to the main body (31).

Description

Lighting device

Technical Field

The present invention relates to a lighting fixture.

Background

In general, lighting fixtures are widely used in schools, gyms, hospitals, theatres, exhibition halls, department stores, factories, houses, and other special buildings, including general buildings such as independent houses and office buildings. The lighting fixtures used in these buildings are usually installed at a high place such as a ceiling or a wall surface, and are lighted by being supplied with commercial power or the like. The lighting devices are operated by a wall switch provided in the middle of the indoor wiring, a button operation of a remote controller to which the lighting devices are attached, or the like, to turn on/off the lighting devices.

Conventionally, as a lighting fixture to be mounted on a ceiling or the like and used, a lighting fixture using linear LEDs has been proposed (patent document 1).

Prior art literature

Patent literature

Patent document 1: japanese patent laid-open publication 2016-39033

Patent document 1 discloses a lighting fixture called integrated base illumination, which is used by attaching a mounting member to a ceiling or the like, and which includes a light source having a main body to which an LED board is mounted, and a mounting member capable of accommodating the main body, but has a problem that a joint structure between the main body on which the light source is disposed and a cover covering a front surface portion of the light source is fragile, and sounds are generated during use.

In order to solve the problems of the prior art documents, the present invention provides a lighting fixture having a high lighting effect, in which a joint structure between a main body where a light source is disposed and a cover is improved without generating sound.

Disclosure of Invention

In order to achieve the above object, a lighting device according to an aspect of the present invention includes:

a mounting member having an opening on a front surface side and provided on an appliance mounting surface;

a light source disposed in the opening and having a main body with a substantially rectangular parallelepiped shape; and

a cover that covers the entire front surface side of the main body so as to surround the entire front surface side of the main body,

the lighting fixture is characterized in that,

the main body is a flat plate of a substantially rectangular parallelepiped shape, the main body has a substrate on a front surface side on which a plurality of LEDs are mounted, the main body has a power supply circuit arranged on a back surface side, both ends in a longitudinal direction of the main body have J-shaped protruding portions protruding toward a light irradiation surface side,

the cover is a strip member with a basically uniform cross section, and has a front surface part with a curved light irradiation surface side, a substantially vertical wall part and a J-shaped edge part,

the protruding portion of the main body and the edge portion of the cover are engaged with each other, thereby fixing the cover to the main body,

the main body and the cover are arranged so that a space into which light emitted from the light source enters is provided between the protruding portion of the main body and the wall portion of the cover.

Effects of the invention

According to the present invention, by applying effort to the joining structure between the cover and the main body of the lighting fixture, it is possible to provide a lighting fixture having a simple structure and a high lighting effect without generating sound.

Drawings

Fig. 1 (a) is a longitudinal side view of the lighting device according to the embodiment, (B) is a plan view, and (C) is a side view from an end portion side.

Fig. 2A is a cross-sectional view of the lighting fixture shown in fig. 1, taken along line A-A.

FIG. 2B is an enlarged cross-sectional view of the portion surrounded by the O mark B of FIG. 2A.

Fig. 3 (a) is a rear view and a side view of the light source according to the embodiment, viewed from an end portion side, (B) is a side view in a longitudinal direction of the light source, and (C) is a front view.

Fig. 4 is a perspective view of the mounting member of the embodiment as viewed from above.

Fig. 5 is a partial cross-sectional perspective view of the locking member of the mounting component of the embodiment as viewed from below.

Fig. 6 is a partial cross-sectional perspective view of a light source and a holding member of a conventional example of a lighting fixture, as viewed from below.

Fig. 7 is a sectional view of a conventional example of a lighting fixture.

Detailed Description

In order to facilitate understanding of the present invention, examples of the lighting fixture according to the embodiment of the present invention will be described with reference to fig. 1 to 7. The lighting fixture according to the embodiment of the present invention is a lighting fixture having a light source in which LEDs are linearly mounted on a substrate, which is generally called integrated base lighting.

The following embodiments are merely examples of the arrangement, functions, numerical values, and the like of the constituent elements described in the embodiments, and are not intended to limit the scope of the present invention.

Further, a part of members such as wires and screws constituting the lighting fixture is omitted because the drawings are complicated.

Embodiment(s)

Fig. 1 (a) is a longitudinal side view of the lighting fixture 1 according to the embodiment of the present invention, fig. 1 (B) is a plan view, and fig. 1 (C) is a side view seen from an end portion side.

As shown in fig. 1 (a) to (C), the lighting fixture 1 of the embodiment includes a mounting member 2 and a light source 3. The mounting member 2 and the light source 3 each have a substantially rectangular shape in plan view, and the mounting member 2 is provided in a place (fixture mounting surface) where the lighting fixture 1 is provided, such as a ceiling 9. The light source 3 is mounted to the mounting member 2 from below. The light source 3 is a component constituting a light source of the lighting fixture 1, and is called by a name of a light source module, a light source unit, or the like. In the present invention, the side of the lighting fixture 1 to which light is emitted from the light source 3 is referred to as a front surface side (floor surface side), the side facing the ceiling 9 is referred to as a back surface side (ceiling side), the direction parallel to the floor surface (ceiling surface) is referred to as a horizontal direction, and the direction perpendicular to the floor surface (ceiling surface) is referred to as a vertical direction.

Fig. 2A is a sectional view of the lighting fixture 1 shown in fig. 1 taken along line A-A, and fig. 2B is an enlarged sectional view of a portion surrounded by the o mark B of fig. 2A. Fig. 2A shows a state in which the lighting fixture 1 shown in fig. 1 is mounted on the ceiling 9. In fig. 2 and the like, constituent members are depicted as schematic cross-sectional views, and hatching and internal structures showing cross sections are basically omitted.

Fig. 3 (a) is a rear view and a side view of the light source 3 of the embodiment, fig. 3 (B) is a longitudinal side view of the light source 3, and fig. 3 (C) is a front view.

As shown in fig. 3 (a), a power supply circuit 36 that receives power supply from a commercial power supply through a connector 39 is disposed on the rear surface of the main body 31 of the light source 3, and a pair of holding members 55 for coupling with the mounting component 2 are provided on both sides of the power supply circuit 36.

As shown in fig. 3 (B), a pair of holding members 55 are provided at the upper portion of the light source 3, and the pair of holding members 55 are arranged such that distances from the end portions in the longitudinal direction to the holding members 55 are different from each other. This prevents the operator from erroneously attaching the light source 3 to the attachment member 2 in the opposite direction.

The main body 31 is formed of a flat plate having a substantially rectangular parallelepiped shape, and functions as a heat sink for dissipating heat generated from the substrate 34, the power circuit 36, and the like. The main body 31 supports the cover 37, a substrate 34 having the LED35 mounted thereon is disposed on the main body front surface 31B side, and a power supply circuit 36 is disposed on the main body rear surface 31A side. The main body 31 is formed of a metal material such as aluminum or iron, but a synthetic resin or the like having high thermal conductivity may be used.

As shown in fig. 3 (C), a substrate 34 having a substantially rectangular shape in plan view and having a plurality of LEDs 35 mounted thereon in a column-like surface is disposed on the main body front surface 31B. The side surface of the substrate 34 is provided with locking portions 34A, which are portions having a narrow side surface width, by cutting both side surfaces at a plurality of positions. By disposing the substrate guide 34B in the locking portion 34A, the substrate 34 can be fixed to the main body front surface 31B, and the sliding range of the substrate 34 can be suppressed to the minimum. The substrate guide 34B is formed of a transparent synthetic resin material, but a member colored yellow, blue, or the like may be used.

The LED35 is constituted by a white LED or a combination of red, blue, and green LEDs. In the light source 3, a plurality of LEDs 35 are used, and the LEDs 35 are mounted on a substrate 34 having a substantially rectangular shape in a plan view at substantially equal intervals in the column direction.

The substrate 34 is constituted by a single flat plate corresponding to the length of the light source 3, but may be constituted by arranging a plurality of rectangular substrates 34 in a row and connecting them to each other. The LEDs 35 are not limited to being arranged in a plurality of rows on the substrate 34, and may be arranged in parallel or may be combined with a single row. The light source 3 is diurnal white, but may be a daylight color or a bulb color.

The power supply circuit 36 receives supply of commercial power from a power supply terminal board (not shown) through a connector 39, converts the commercial power into dc power, and supplies the dc power to the substrate 34. The power supply circuit 36 controls the applied voltage and current to perform light control such as lighting, turning off, dimming, and increasing of the light source 3, but may perform color adjustment control such as light emission of daytime, white, and bulb color. These dimming and toning operations may be performed by an operation switch provided in the main body 31, a wall switch, or an external remote controller (both not shown).

Fig. 4 is a perspective view of the mounting member 2 according to the embodiment as viewed from above.

The mounting component 2 is provided with a locking member 53, indicated by a broken line, composed of a first locking member 40 and a second locking member 50, on the bottom surface of the light source mounting portion 21. In the entire mounting part 2, two locking members 53 are arranged in the longitudinal direction. The locking members 53 are disposed at different distances from the longitudinal ends of the mounting member 2 as in the case of the holding members 55, and thus, the operator can be prevented from erroneously installing the light source 3 on the mounting member 2 in the opposite direction with respect to the mounting member 2.

Fig. 5 is a partial cross-sectional perspective view of the locking member 53 of the mounting component 2 according to the embodiment, as seen from below.

The mounting member 2 is formed by bending a metal plate-like member, and a substantially rectangular parallelepiped light source mounting portion 21 having an opening 4 and a pair of reflecting plates 28 inclined toward the ceiling 9 are provided on the floor surface side. The light source 3 is mounted in the opening 4. A substantially horizontal bottom 30 is provided between the opening 4 and the reflecting plate 28 on both sides, and an L-shaped edge 29 is provided on both sides of the reflecting plate 28 on the ceiling 9 side. One side of the L-shaped edge 29 on the ceiling 9 side is an abutment surface for contacting the ceiling 9.

By applying a white paint or the like to the surface of the reflective plate 28, the light emitted from the light source 3 is reflected toward the floor surface side, and the light emitted from the light source 3 is efficiently reflected toward the front surface side, whereby the interior can be illuminated.

As shown in fig. 5, at least one of the first locking member 40 and the second locking member 50 is elastically deformed by pressing from the direction in which the first locking member 40 and the second locking member 50 face each other. The first locking member 40 has the following shape: the light source mounting portion 21 includes a first curved portion 41 curved toward the front surface side (floor surface side) from the direction of the bottom surface of the light source mounting portion 21, an intermediate portion 42 continuous with the first curved portion 41 and extending toward the front surface side (floor surface side), and a front end portion 43 formed at the front end and having a shape to be locked with a first holding member 60 described later. The front end portion 43 is bent from the intermediate portion 42 to the side where the first bending portion 41 protrudes, and is bent toward the back side (ceiling side).

The second locking member 50 is formed in the following shape: has a second bending portion 51 which is bent from the direction of the bottom surface of the light source mounting portion 21 toward the horizontal direction. The second bending portion 51 protrudes in the opposite direction to the first bending portion 41. In the example of fig. 5, the first bending portion 41 protrudes to the opposite side from the second locking member 50, and the second bending portion 51 protrudes to the opposite side from the first locking member 40. That is, the bent portion of the second bending portion 51 is convex to the opposite side to the first locking member 40. The second locking member 50 extends from the bottom surface of the light source mounting portion 21 toward the front surface side, and protrudes from the bottom surface of the light source mounting portion 21 toward the opposite side from the first locking member 40 in the second bending portion 51, and is bent in an arc shape toward the front surface side. A locking coupling portion 45 is provided between the first locking member 40 and the second locking member 50, and is attached to the bottom surface of the light source attachment portion 21 of the attachment unit 2 by a fastener 46.

Fig. 6 is a partial cross-sectional perspective view of the light source 103 and the holding member 55 of the lighting fixture 100 of the conventional example, as viewed from below.

As shown in fig. 6, the main body back surface 131A of the light source 103 is provided with a first holding member 60, a second holding member 70, and a connecting member 65 connecting the first holding member 60 and the second holding member 70. The first holding member 60 has a first insertion hole 61 formed therein, and the second holding member 70 has a second insertion hole 71 formed therein. The first holding member 60, the second holding member 70, and the coupling member 65 protrude from the main body back surface 131A toward the back surface side (ceiling side). In the entire light source 103, two sets of holding members 55 each including the first holding member 60, the second holding member 70, and the connecting member 65 are arranged.

In the example of fig. 6, the front

end locking portions

62 and 72 of the first and second holding

members

60 and 70 are inserted into holes provided in the main body rear surface 131A, respectively, and the first and second holding

members

60 and 70 are fixed to the main body rear surface 131A by

fasteners

63 and 73, respectively. Both edges 137E in the longitudinal direction of the cover 137 and both ends 131C in the longitudinal direction of the main body 131 are fixed by a plurality of fasteners 76.

The first holding member 60 has a first insertion hole 61 formed therein, and the second holding member 70 has a second insertion hole 71 formed therein. In the holding coupling portion 65 coupling the first holding member 60 and the second holding member 70, a third insertion hole 74 is formed in the vicinity of the first holding member 60, and a fourth insertion hole 75 is formed in the vicinity of the second holding member 70.

The first, second, third and fourth insertion holes 61, 71, 74 and 75 are formed in a shape having an opening of a substantially rectangular shape. The openings of the first insertion hole 61 and the second insertion hole 71 are oriented in the horizontal direction in the state shown in fig. 6. The first insertion hole 61 and the second insertion hole 71 are each sized to allow the first bending portion 41 and the second bending portion 51 to be inserted. The openings of the third insertion hole 74 and the fourth insertion hole 75 face the ceiling 9. The third insertion hole 74 is sized to allow the insertion of the distal end portion 43, the intermediate portion 42, and the first bending portion 41. The fourth insertion hole 75 is sized to allow the second bending portion 51 to be inserted.

Fig. 7 is a sectional view of a lighting fixture 100 of a conventional example.

As shown in fig. 7, the mounting member 102 is fixed to the ceiling 9 of the building by the appliance mounting member 27. The fixture attachment 27 is a member for attaching the attachment member 102 to the installation site of the lighting fixture 100, and is formed of a fastener such as a bolt or a nut. In general, the fixture attachment 27 constituted by bolts arranged on the ceiling 9 is fixed by fastening with nuts and bolts passing through holes bored in the attachment member 102. The fastening means is not limited to bolts and nuts, and other means such as screw fastening may be used.

In the present embodiment, the attachment member 102 is fixed to the ceiling 9 using the tool attachment 27 as in the conventional example.

The mounting means 102 is formed by bending a metal plate-like member, and is provided with a substantially rectangular parallelepiped light source mounting portion 121 having an opening 104 and a pair of reflecting plates 128 inclined toward the ceiling 9 side on the floor surface side. A light source 103 is mounted in the opening 104.

A power supply circuit 136 having a rectangular cross section and larger than the second holding member 70 is disposed on the main body rear surface 131A.

The cover 137 is fixed at its end to the main body front surface 131B. The cover 137 is located on the front surface side (floor surface side) of the main body 131, and includes a front surface portion 137A, a wall portion 137B, and a horizontal surface portion 137C. The vicinity of the end of the horizontal surface 137C is fixed to the main body 131, and a pair of inverted J-shaped edge portions 137D are formed on the horizontal surface 137C toward the ceiling 9 side. The edge 137D is located inside the light source mounting portion 121 and functions as a guide for mounting the light source 103 to the mounting member 102 and a holding member for the mounted light source 103.

The cover 137 is fixed to the main body 131 with the opening side facing the main body front surface 131B, covers the entire surface of the front surface of the substrate 134 on which the LEDs 135 are mounted in the opening, and covers the main body front surface 131B from the front surface side (floor surface side) so as to surround the entire main body front surface 131B of the main body 131 such as the light source 103.

Embodiments of the present invention will be described herein. The structure of the locking member 53 in the mounting component 2, the structure of the holding member 55 in the light source 3, and the method of installing the lighting fixture 1 using the locking member 53 and the holding member 55 according to the present invention are the same as those of the conventional example shown in fig. 5 to 7.

As shown in fig. 2A, the light source mounting portion 21 is provided with a locking member 53 constituted by the first locking member 40 and the second locking member 50. The light source 3 is provided with a holding member 55 facing the locking member 53. The first locking member 40 and the second locking member 50 are engaged with the first holding member 60 disposed on the light source 3 and facing the first locking member 40, and the second holding member 70 facing the second locking member 50, respectively.

The locking member 53 is a connector for attaching the light source 3 to the attachment member 2. When the light source 3 is pushed toward the ceiling 9 with the main body rear surface 31A of the light source 3 facing the mounting unit 2, and the opening 4 of the mounting unit 2 is inserted, the first locking member 40 and the second locking member 50 are inserted into the first insertion hole 61 formed in the first holding member 60 and the second insertion hole 71 formed in the second holding member 70, respectively, to mount the light source 3 to the mounting unit 2. These mounting methods are the same as those of the conventional examples shown in fig. 5 to 7 described above.

The cover 37 is a cover for covering the LED35, and is a member called by the name of a lamp shade, a lamp umbrella, or the like. The cover 37 is formed into a substantially rectangular parallelepiped shape having a hollow and an opening, for example, by a light-transmitting resin material having light diffusibility, such as a polycarbonate resin. The cover 37 is fixed to the main body 31 with the opening side facing the main body front surface 31B, and covers the front surface 31B from the front surface side (floor surface side) so as to surround the entire front surface 31B of the main body 31, with the front surface of the substrate 34 having the LEDs 35 mounted therein. The cover 37 protects the LEDs 35 and uniformly diffuses light from the LEDs 35.

Fig. 2B shows the structure in the o mark B of fig. 2A. The main body 31 in the embodiment is formed of a substantially rectangular flat plate, and the protruding portions 32 are formed at both ends of the main body 31 in the longitudinal direction. The protruding portion 32 is composed of a side surface portion 32A bent perpendicularly to the front surface direction in an L-shape, and a front end portion 32B bent at the front end thereof so as to draw an arc to the ceiling 9 side.

The cover 37 includes a front surface portion 37A formed in a curved shape, a substantially vertical wall portion 37B, a substantially horizontal surface portion 37C, and a substantially vertical edge portion 37D. The side surface 32A of the main body 31 and the edge 37D of the cover 37 have substantially the same shape. The J-shaped edge 37D of the cover 37 is inserted from the longitudinal direction of the main body 31 into a space formed by the side surface portion 32A and the front end portion 32B of the J-shaped protruding portion 32 formed at both ends of the longitudinal direction of the main body 31. Then, by fitting side covers 80 having a cross-sectional shape formed in the same shape as that of the light source 3 to both end portions of the light source 3, the cover 37 is fixed to the main body 31 in a stationary manner.

Since the body 31 and the cover 37 are assembled by engagement of the protruding portion 32 of the body 31 with the edge portion 37D of the cover 37, a complicated operation of joining the body 31 and the cover 37 using a plurality of fasteners 76 as in the conventional example is not required, and the efficiency of the assembly operation can be improved. Further, since the fastener 76 is not used, the main body 31 and the cover 37 can be firmly coupled.

In the embodiment, since the gap is provided between the main body 31 and the cover 37, thermal expansion of the main body 31, the cover 37, and other components caused by heat generated by the substrate 34, the power supply circuit 36, and the like on which the LED35 is mounted is absorbed by the gap, and thus, rattling and other sounds caused by thermal expansion can be prevented.

Further, a plurality of projections 38 may be formed on the surface of the cover 37. As shown in fig. 2B, in the embodiment, the protruding portions 38 are provided at two places on the horizontal surface portion 37C that abuts against the bottom portion 30 of the mounting member 2, and at two places on the wall surface of the J-shaped edge portion 37D that abuts against the side surface portion 32A of the main body 31. In addition to the gap generated between the main body 31 and the cover 37, the convex portion 38 also maintains a fixed distance between the surface of the cover 37 and the surface of the side surface portion 32A of the main body 31 when the lighting fixture 1 is in use, thereby serving to prevent rattling and the like sounds generated by thermal expansion and the like of the respective members when the temperature of the main body 31 and the like rises.

The convex portion 38 provided on the surface of the cover 37 is formed as 4 (4) semi-cylindrical protrusions parallel to the edge 37D along the longitudinal direction of the cover 37, but the convex portion 38 may be formed as a dot-like array by a hemispherical member. The number of the protrusions 38 is not limited to 4, and may be appropriately arranged as needed.

As shown in fig. 2B, the front end portion 32B located at the front end of the main body 31 and the wall portion 37B of the cover 37 are disposed so as to be separated by a space α having an elliptical cross-section indicated by a broken line. The space α is a space surrounded by a width a, a height b, and a height c. The light irradiated from the light source 3 passes through the inside of the cover 37 to reach the space α. The light reaching the cover 37 is discharged to the outside of the cover 37 through the substantially vertical wall 37B of the cover 37, and illuminates the wall 37B. By providing the space α between the main body 31 and the cover 37, light emitted from the LED35 uniformly spreads to the periphery, and no dark portion is generated at the corner portion of the cover 37. The body 31 and the cover 37 are arranged so that a space into which light emitted from the light source 3 is incident is provided between the protruding portion 32 of the body 31 and the wall portion 37B of the cover 37.

The length a is the distance between the front end portion 32B of the main body 31 and the cover 37, the length B is the distance between the bottom portion 30 of the mounting member 2 and the horizontal surface portion 38 of the horizontal surface portion 37C of the cover 37, and the length C is the distance between the vertical wall portion 37B of the cover 37 and the bottom portion 30 of the mounting member 2.

The length a is 1.0 to 10.0mm, preferably 2.0 to 5.0mm. The length b is 3.0 to 20.0mm, preferably 4.0 to 12.0mm. The length c is 5.0 to 20.0mm, preferably 8.0 to 12.0mm.

As in the conventional example, a plurality of outward hemispherical buffer members 22 are provided on the outer wall surface of the light source mounting portion 21, and the buffer members 22 are brought into contact with the ceiling 9 and a vertical surface 30B provided on the mounting unit 2, thereby preventing the loosening of the light source 3 and reliably fixing the position.

The present invention is not limited to the above-described embodiments, and various modifications and applications can be made to the above-described embodiments.

The present application claims priority based on japanese application No. 2021-101891, filed on 6/18 of 2021, the disclosure of which is incorporated herein in its entirety.

Industrial applicability

According to the present invention, by improving the joint structure and the arrangement position between the cover and the main body of the lighting fixture, it is possible to provide a lighting fixture having a simple structure and a high lighting effect without generating a dark portion on the light irradiation surface.

Description of the reference numerals

1. 100 lighting device

2. 102 mounting part

3. 103 light source

4. 104 opening part

9 ceiling (mounting surface of appliance)

21. 121 light source mounting part

22 cushioning members

27 utensil mounting

28. 128 reflecting plate

29. 129 edge portion

30 bottom part

30B vertical plane

31. 131 main body

31A, 131A main body back face

31B, 131B main body front surface

32 projection part

32A side face portion

32B front end part

34. 134 substrate

34A locking part

34B substrate guide

35、135LED

36. 136 power supply circuit

37. 137 cover

37A, 137A front surface portion

37B, 137B wall section

37C, 137C horizontal face

37D, 137D rim

38 convex portions

39 connector

40 first locking member

41 first bend

42 middle part

43 front end part

45-degree locking connection part

46. 63, 73, 76 fasteners

50 second locking member

51 second bend

53 locking member

55 holding member

60 first holding member

61 first insertion hole

62. 72 front end locking part

65 connecting member

70 second holding member

71 second insertion hole

74 third insertion hole

75 fourth insertion hole

80 side cover

131C end

137E edge part

Alpha space

Claims

1. A lighting fixture is provided with:

the lighting fixture is characterized in that,

2. A lighting fixture as recited in claim 1, wherein,

the mounting member is provided with:

a pair of holding members formed by bending one plate-like member and provided on the back surface of the main body; and

and a pair of locking members provided on a surface of the mounting member facing the rear surface of the main body so as to face the holding members.

3. A lighting fixture as recited in claim 1 or claim 2, wherein,

the cover has a plurality of protrusions on a surface of the rim.

4. A lighting fixture as recited in any one of claims 1-3, wherein,

the substrate is a long flat plate, locking parts with narrow side widths are arranged at a plurality of positions on the side surface of the substrate, a substrate guide is arranged at the locking parts, and the substrate is fixed on the main body.