lighting fixtures

Abstract

To provide a luminaire that can restrain liquid from dripping to a light source.SOLUTION: A luminaire 1, 1A is attached to an upper end of a pole P1 formed in a rod shape, and is used as, for example, a street light. The luminaire 1, 1A comprises a light source 6, a fixing member 7, and an arrangement surface S1. The light source 6 is fixed to the fixing member 7. The arrangement surface S1 intersects with a horizontal plane A1, and is a surface on which the fixing member 7 is arranged. The fixing member 7 comprises a shielding part 72 covering the light source 6 from above the light source 6.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] FIELD OF THE DISCLOSURE This disclosure relates generally to lighting fixtures, and more particularly to pole-mounted lighting fixtures. [Background technology]

[0002] Patent Document 1 discloses a balloon-type lighting device equipped with a light source unit covered with a balloon. The light source unit has a cylindrical light-emitting plate on the front side of which multiple LED elements are arranged and which is erected facing each other, and heat-dissipating fins on the back side of the light-emitting plate that dissipate heat from the LED elements. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2016-115452 Summary of the Invention [Problem to be solved by the invention]

[0004] In the balloon-type lighting device (lighting fixture) described in Patent Document 1, multiple LED elements (light sources) are arranged on the front side of the light-emitting plate. If liquid is generated on the inner surface of the balloon due to condensation, for example, the liquid may drip onto the LED elements, causing a malfunction in the lighting device.

[0005] An object of the present disclosure is to provide a lighting device that can prevent liquid from dripping onto a light source. [Means for solving the problem]

[0006] A lighting device according to one aspect of the present disclosure includes a light source, a fixing member, and an arrangement surface. The light source is fixed to the fixing member. The arrangement surface intersects with a horizontal plane and is a surface on which the fixing member is arranged. The fixing member has a shielding portion that covers the light source from above. The fixing member has a fixing surface to which the light source is fixed, and the shielding portion extends from the fixing surface in a direction intersecting the fixing surface. [Effects of the Invention]

[0007] The present disclosure has the advantage of being able to prevent liquid from dripping onto the light source. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. 1 is a cross-sectional view of the lighting fixture according to the first embodiment. [Figure 2] FIG. 2 is an exploded perspective view of the lighting fixture. [Figure 3] FIG. 3 is a front view of the fixing member. [Figure 4] FIG. 4 is a bottom view of the fixing member. [Figure 5] FIG. 5 is a cross-sectional view illustrating a method for locking the fixing member according to the modified example. [Figure 6] FIG. 6 is a cross-sectional view illustrating a method for locking the fixing member according to the modified example. [Figure 7] FIG. 7 is a cross-sectional view of the lighting fixture according to the second embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0009] In the following embodiments, the lighting device of the present disclosure will be described using drawings. However, the following embodiments are merely a portion of various embodiments of the present disclosure. The following embodiments can be modified in various ways depending on the design, etc., as long as the object of the present disclosure can be achieved. Furthermore, the drawings described in the following embodiments are schematic diagrams, and the ratios of the sizes and thicknesses of the components in the drawings do not necessarily reflect the actual dimensional ratios.

[0010] (Embodiment 1) (overview) An overview of a lighting fixture 1 according to this embodiment will be described below with reference to FIG.

[0011] A lighting fixture 1 of this embodiment shown in FIG. 1 is used, for example, as a street light. The lighting fixture 1 is attached to a pole P1. More specifically, the pole P1 is, for example, rod-shaped and stands perpendicular to a horizontal plane A1, and the lighting fixture 1 is attached to the upper end of the pole P1. The orientation of the pole P1 is not limited to a direction perpendicular to the horizontal plane A1 (vertical direction D1), but may be inclined with respect to the vertical direction D1. Furthermore, if the pole P1 has a rod-shaped main body having a length in the vertical direction D1 and an arm protruding from the main body in a direction intersecting the vertical direction D1, the lighting fixture 1 may be attached to the tip of the main body or the tip of the arm. In other words, the direction in which the lighting fixture 1 is used is not particularly limited. In this embodiment, the lighting fixture 1 is attached to the upper end of a rod-shaped pole P1 that stands perpendicular to the horizontal plane A1.

[0012] The lighting device 1 of this embodiment includes a light source 6, a fixing member 7, and an arrangement surface S1. The light source 6 is fixed to the fixing member 7. The arrangement surface S1 intersects with the horizontal plane A1 and is a surface on which the fixing member 7 is installed. The fixing member 7 has a shielding portion 72 that covers the light source 6 from above.

[0013] According to this embodiment, the light source 6 is covered from above by the shielding portion 72, so that the liquid can be prevented from dripping onto the light source 6.

[0014] (Detailed configuration) (1) Overall structure The detailed configuration of the lighting fixture 1 of this embodiment will be described below with reference to FIGS.

[0015] As shown in FIG. 1 , the lighting fixture 1 includes a main unit 10, a light source 6, and a fixing member 7. The main unit 10 includes at least a fixture body 2 and a globe 5. The fixture body 2 has a base 3, an adapter 4, and an arrangement surface S1. In this embodiment, multiple (four) light sources 6 are provided. That is, the lighting fixture 1 includes multiple light sources 6.

[0016] Furthermore, the lighting device 1 further includes a first seal 81 and a second seal 82 in addition to the device body 2, the globe 5, the fixing member 7, and the plurality of light sources 6. The first seal 81 and the second seal 82 may or may not be included in the main unit 10.

[0017] In this embodiment, a plurality of (four) fixing members 7 are provided. That is, the lighting device 1 includes a plurality of fixing members 7. The fixing members 7 correspond one-to-one to the light sources 6. A corresponding light source 6 is fixed to each fixing member 7.

[0018] In the following description, the direction perpendicular to the horizontal plane A1 is defined as the vertical direction D1 (up-down direction).

[0019] (2) Base 1 and 2, the base 3 has a connecting portion 31, a top plate portion 32, and a plurality of fins 33. In this embodiment, a plurality of light sources 6 are attached to the base 3.

[0020] The top plate portion 32 is a member integrally molded with the connecting portion 31. The top plate portion 32 and the connecting portion 31 are manufactured by die-casting, for example, using aluminum as a material. The multiple fins 33 are also members integrally molded with the top plate portion 32 and the connecting portion 31. The multiple fins 33, the top plate portion 32, and the connecting portion 31 are manufactured by die-casting, for example, using aluminum as a material.

[0021] The connecting portion 31 is formed in a columnar shape. Examples of shapes that fall under the category of "columnar" include a circular cylinder, a rectangular column, and a truncated cone. The interior of a "columnar" member may be hollow. The outer shape of the connecting portion 31 in this embodiment is a quadrangular column. The interior of the connecting portion 31 is hollow.

[0022] The connecting portion 31 has four side surfaces 310, which are slightly inclined with respect to the vertical direction D1. The connecting portion 31 is formed to become thinner toward the bottom. In other words, the width of the connecting portion 31 is shorter toward the bottom.

[0023] As shown in FIG. 2, a fixing member 7 is arranged on each of the four side surfaces 310 of the connecting portion 31. That is, each of the four side surfaces 310 of the connecting portion 31 is an arrangement surface S1 on which the fixing member 7 is arranged. The four side surfaces 310 of the connecting portion 31 correspond one-to-one to the multiple fixing members 7. A corresponding fixing member 7 is fixed to each side surface 310. The arrangement surface S1 intersects with the horizontal plane A1. More specifically, the arrangement surface S1 is not perpendicular to the horizontal plane A1, but rather intersects with the horizontal plane A1 with the upper end of the arrangement surface S1 slightly tilted toward the globe 5, as shown in FIG.

[0024] The connecting portion 31 is connected to the adapter 4. More specifically, as shown in Fig. 1, the connecting portion 31 is connected to the adapter 4 with the adapter 4 in contact with the lower end of the connecting portion 31. The connecting portion 31 and the adapter 4 are fixed together by screwing. That is, screws 21 (see Fig. 1) are passed through a plurality of holes provided in the connecting portion 31 and the adapter 4, respectively.

[0025] The top panel 32 has a disk-like shape and extends in a direction intersecting with the vertical direction D1.

[0026] The top plate portion 32 is connected to a first end (upper end) of the connecting portion 31. In other words, the top plate portion 32 is connected to the side of the connecting portion 31 opposite to the side connected to the adapter 4. The top plate portion 32 protrudes from the connecting portion 31 in a direction intersecting the vertical direction D1 (a direction along the horizontal plane A1). In other words, the top plate portion 32 protrudes outward beyond the connecting portion 31. When viewed from below, the outer edge of the top plate portion 32 is located outward beyond the outer edge of the connecting portion 31. The top plate portion 32 covers the connecting portion 31 from above.

[0027] The top plate portion 32 has a groove portion 320 (see FIG. 1) into which the first end portion 52 (upper end) of the globe 5 is inserted. The groove portion 320 is formed in a circular shape along the outer edge of the top plate portion 32. The top plate portion 32 opens downward at the groove portion 320.

[0028] The top panel 32 has an inner surface 321 that contacts the space B1 surrounded by the base 3, the adapter 4, and the globe 5. The inner surface 321 is the lower surface of the top panel 32.

[0029] The plurality of fins 33 protrude from the top plate portion 32. More specifically, the plurality of fins 33 protrude from the upper surface of the top plate portion 32. The plurality of fins 33 are arranged radially around the center of the top plate portion 32.

[0030] Heat generated by the plurality of light sources 6 is transferred to the plurality of fins 33 via the connecting portion 31 and the top plate portion 32. By providing the plurality of fins 33, the surface area of ​​the base 3 becomes relatively large, and the heat dissipation efficiency increases.

[0031] (3) Fixing member 1, each of the multiple fixing members 7 has a mounting portion 71 and a shielding portion 72. In this embodiment, the shielding portion 72 is a curved portion. That is, the fixing members 7 are formed by bending a plate material that is the material for the fixing members 7. With the bent portion of the plate material as a boundary, the portion on one side is the mounting portion 71, and the portion on the other side is the shielding portion 72.

[0032] 2 and 3, the mounting portion 71 is a rectangular plate member with rounded corners at the bottom. The top end of the mounting portion 71 is connected to the shielding portion 72. As shown in FIG. 4, the shielding portion 72 is a plate member with an arched end that is not connected to the mounting portion 71.

[0033] The fixing member 7 is made of, for example, a metal. The metal constituting the fixing member 7 is, for example, copper, aluminum, a copper alloy, or an aluminum alloy. In this embodiment, the fixing member 7 is a metal sheet that is formed into a thin, flat piece. That is, the fixing member 7 is formed by bending a metal sheet.

[0034] In this embodiment, the fixing member 7 is installed on the mounting surface S1 of the connecting portion 31. More specifically, the mounting portion 71 is installed on the side surface 310, which is the mounting surface S1. The fixing member 7 has a second locking portion 711 that locks with a first locking portion 312 provided on the mounting surface S1. In this embodiment, as shown in FIGS. 2 and 3, the fixing member 7 has notches 711a, 711b, and 711c as the second locking portion 711. The notch 711a is provided in the center of the lower end of the mounting portion 71. The notches 711b and 711c are provided on opposing sides at the top of the mounting portion 71. Meanwhile, in this embodiment, the side surface 310, which is the mounting surface S1, has protrusions 312a, 312b, and 312c as the first locking portion 312. The protrusions 312a, 312b, and 312c are provided at positions corresponding to the notches 711a, 711b, and 711c, respectively. The fixing member 7 of this embodiment is locked to the mounting surface S1 by hooking the notches 711a, 711b, and 711c onto the protrusions 312a, 312b, and 312c provided on the mounting surface S1, respectively. The fixing member 7 is fixed to the mounting surface S1 with screws 73 while locked to the mounting surface S1.

[0035] As shown in FIGS. 1 and 4 , the fixing member 7 has a fixing surface S2 to which the light source 6 is fixed. The fixing surface S2 is a surface of the mounting portion 71 that faces the surface that contacts the side surface 310, which is the arrangement surface S1. The light source 6 is placed on the fixing surface S2 of the mounting portion 71. The light source 6 is fixed to the fixing surface S2 of the mounting portion 71. In this embodiment, the light source 6 is fixed to the fixing surface S2 of the mounting portion 71 with screws 74.

[0036] 1, the shielding portion 72 extends from the fixed surface S2 in a direction intersecting with the fixed surface S2. In other words, the shielding portion 72 extends from the fixed surface S2 in the direction in which the light source 6 emits light.

[0037] The shielding portion 72 is located above the light source 6 and has a lower surface 721 (see FIG. 1) that reflects the light emitted from the light source 6. In this embodiment, since the fixing member 7 is made of a metal plate, the lower surface 721 has a metallic luster and reflects the emitted light.

[0038] Furthermore, in fixing member 7 of this embodiment, the angle between lower surface 721 and fixing surface S2 is greater than 90 degrees. For example, the angle between lower surface 721 and fixing surface S2 is preferably between 95 degrees and 100 degrees. In this case, the direction in which lower surface 721 reflects emitted light is between a direction along horizontal plane A1 and a downward direction.

[0039] (4) Light source 2 and 3, the light source 6 includes, for example, a light emitting module 61. The light emitting module 61 includes a light emitting element such as a light emitting diode element. The light emitting module 61 of this embodiment is a COB (chip-on-board) type module. Furthermore, the light source 6 includes a substrate 62, a holder 63, and terminal portions 64a and 64b.

[0040] The light emitting module 61 is mounted on a substrate 62. The holder 63 holds the substrate 62. The holder 63 is fixed to a fixing member 7. More specifically, the holder 63 is fixed to a fixing surface S2 of a mounting portion 71 of the fixing member 7 by a screw 74.

[0041] The normal to the surface of the light emitting module 61 extends obliquely downward from the surface of the light emitting module 61. In other words, the board 62 on which the light emitting module 61 is mounted is not perpendicular to the horizontal plane A1, and the upper end of the board 62 is slightly tilted toward the globe 5. Therefore, the optical axis of the light source 6 (light emitting module 61) extends obliquely downward. The optical axis of the light source 6 (light emitting module 61) extends in a direction perpendicular to the fixing surface S2. The light source 6 (light emitting module 61) emits light in a direction intersecting with the fixing surface S2.

[0042] As shown in FIG. 3, the light source 6 further has terminals 64a and 64b to which power is supplied. The terminals 64a and 64b are electrically connected to the electric wire W1. The terminals 64a and 64b are supplied with power from the electric wire W1. As shown in FIG. 3, the terminal 64a is provided at the upper left end of the holder 63. Meanwhile, the terminal 64b is provided at the lower right end of the holder 63. The light-emitting module 61 is turned on and emits light using the power supplied to the terminals 64a and 64b.

[0043] Specifically, the connection path between the terminals 64a, 64b and the electric wire W1 will be described. The electric wire W1 (see FIG. 1) is passed through, for example, the inside of the pole P1. The electric wire W1 passes through, for example, the inside of the pole P1, from the upper end of the pole P1, and into the inside of the adapter 4. The electric wire W1 is then passed from the inside of the adapter 4 through an opening 430 (see FIGS. 1 and 2) in the upper bottom 43 of the adapter 4, and into the inside of the connecting portion 31 of the base 3. The electric wire W1 is then passed from the inside of the connecting portion 31 through an electric wire insertion hole provided in the connecting portion 31, into the space between the connecting portion 31 and the globe 5, and is electrically connected to the terminals 64a, 64b provided on the light source 6.

[0044] (5) Adapter The adapter 4 is connected to the base 3 and attached to the upper end of the cylindrical pole P1.

[0045] As shown in FIGS. 1 and 2, the adapter 4 has a cylindrical portion 41, a flange portion 42, an upper bottom portion 43, and a plurality of (three) attachment portions 44.

[0046] The tubular portion 41 has a cylindrical shape. More specifically, the tubular portion 41 has a cylindrical shape. The axial direction of the tubular portion 41 is along the vertical direction D1. The tubular portion 41 includes a first portion 411 and a second portion 412. The first portion 411 is connected to the upper end of the second portion 412. The first portion 411 is formed in a cylindrical shape whose diameter decreases toward the upper end. The second portion 412 is formed in a cylindrical shape whose diameter is approximately constant from the upper end to the lower end. The tubular portion 41 has an opening 401 at the lower end.

[0047] The flange 42 has an annular shape. The flange 42 protrudes along the horizontal plane A1 from the outer edge of the cylindrical portion 41. In other words, the flange 42 protrudes outward beyond the cylindrical portion 41.

[0048] The flange 42 has a groove 420 (see FIG. 1) into which the second end 53 (lower end) of the globe 5 is inserted. The groove 420 is formed in a circular shape along the outer edge of the flange 42. The flange 42 opens upward at the groove 420.

[0049] The upper base 43 covers the upper end of the tubular portion 41. The upper base 43 has an opening 430. The opening 430 is a hole for passing the electric wire W1 (see FIG. 1).

[0050] The adapter 4 is disposed below the connecting portion 31. An upper bottom portion 43, which is the upper end portion of the adapter 4, is connected to the lower end portion of the connecting portion 31.

[0051] The connecting portion 31 and the adapter 4 can be connected without rotation. In this embodiment, as an example, as described above, the connecting portion 31 and the adapter 4 are fixed (connected) by screwing.

[0052] The adapter 4 is formed in a cylindrical shape including a first end that is open so that the pole P1 can be inserted thereinto, and a second end opposite the first end. In this embodiment, the lower end of the cylindrical portion 41 corresponds to the first end, and the upper base portion 43 corresponds to the second end.

[0053] As shown in FIG. 1, the multiple (three) mounting portions 44 are located on the inner periphery of the adapter 4 (tubular portion 41). The multiple mounting portions 44 are configured to mount the adapter 4 to the pole P1. The multiple mounting portions 44 are lined up in the circumferential direction of the adapter 4. Each mounting portion 44 includes a first mounting portion 441, a second mounting portion 442, and a third mounting portion 443.

[0054] Each of the first mounting portion 441, the second mounting portion 442, and the third mounting portion 443 has an L-shaped surface. The set of the first mounting portion 441, the second mounting portion 442, and the third mounting portion 443 forms a stepped structure. The second mounting portion 442 protrudes more toward the center of the adapter 4 than the first mounting portion 441. The third mounting portion 443 protrudes more toward the center of the adapter 4 than the second mounting portion 442. In addition, the second mounting portion 442 is provided higher than the first mounting portion 441. The third mounting portion 443 is provided higher than the second mounting portion 442.

[0055] The adapter 4 can be attached to one pole P1 arbitrarily selected from a plurality of poles P1 each having a different width dimension. In this embodiment, the pole P1 is cylindrical, and the width dimension of the pole P1 refers to the diameter of the pole P1. The adapter 4 of this embodiment can be attached to poles P1 having first, second, and third width dimensions. The first width dimension is larger than the second width dimension. The second width dimension is larger than the third width dimension.

[0056] 1 shows a state in which the adapter 4 is attached to a pole P1 having a first width dimension. The pole P1 having the first width dimension contacts the surface of each of the first attachment portions 441 of the multiple attachment portions 44. In other words, the upper end of the pole P1 and a portion of the outer circumferential surface of the pole P1 near the upper end contact the surface of each of the first attachment portions 441 of the multiple attachment portions 44. In this state, the adapter 4 is attached to the pole P1. Specifically, screws 22 (see FIG. 1) are passed through each of multiple holes provided on the outer circumferential surface of the adapter 4, and the adapter 4 is fixed to the pole P1 by the contact pressure of the screws 22.

[0057] The adapter 4 is also attached to poles P1 of other width dimensions in the same manner as for the pole P1 of the first width dimension. The pole P1 of the second width dimension contacts the surface of the second mounting portion 442 of each of the multiple mounting portions 44. In this state, the adapter 4 and the pole P1 are screwed together to attach the adapter 4 to the pole P1. Furthermore, the pole P1 of the third width dimension contacts the surface of the third mounting portion 443 of each of the multiple mounting portions 44. In this state, the adapter 4 and the pole P1 are screwed together to attach the adapter 4 to the pole P1.

[0058] (6) Gloves 1 and 2, the globe 5 has a cylindrical shape. More specifically, the globe 5 is formed in a cylindrical shape that surrounds at least a portion of the adapter 4. The globe 5 also has a cylindrical shape.

[0059] As shown in FIG. 1 , the glove 5 has a glove body 51, a first end 52, and a second end 53. The glove body 51, the first end 52, and the second end 53 are each tubular (more specifically, cylindrical) in shape. The first end 52 is provided at a first end (upper end) in the axial direction of the glove body 51. The second end 53 is provided at a second end (lower end) in the axial direction of the glove body 51. The first end 52 and the second end 53 are thinner than the glove body 51.

[0060] The globe 5 covers the area of ​​the adapter 4 above the flange 42. The globe 5 also surrounds the area of ​​the adapter 4 above the flange 42.

[0061] The globe 5 is sandwiched between the top plate portion 32 of the base portion 3 and the adapter 4. This attaches the globe 5 to the appliance body 2. More specifically, a first end 52 of the globe 5 is inserted into a groove 320 (see FIG. 1) of the top plate portion 32. A second end 53 of the globe 5 is inserted into a groove 420 (see FIG. 1) of the adapter 4. This sandwiches the globe 5 between the top plate portion 32 and the adapter 4.

[0062] The first seal 81 and the second seal 82 are formed, for example, from silicone rubber. The first seal 81 and the second seal 82 are annular in shape. The first seal 81 is sandwiched between the first end 52 and the inner surface of the groove 320. This reduces the possibility of foreign matter such as water entering through the gap between the top plate 32 and the globe 5. The second seal 82 is sandwiched between the second end 53 and the inner surface of the groove 420. This reduces the possibility of foreign matter such as water entering through the gap between the adapter 4 and the globe 5.

[0063] (7) Advantages According to this embodiment, the space B1 (see FIG. 1 ) surrounded by the base 3, the adapter 4, and the globe 5 is sealed by the first seal 81 and the second seal 82. The space B1 is kept at a higher temperature than the outside air due to the heat generated when the light-emitting module 61 is turned on. On the other hand, the top panel 32 is in contact with the outside air and is therefore cooled by the outside air. Therefore, water may form on the inner surface 321 of the top panel 32 that contacts the space B1 due to condensation.

[0064] In this embodiment, the shielding portion 72 covers the light source 6 from above. FIG. 4 shows a projection plane S3 of the shielding portion 72 when the fixing member 7 installed on the side surface 310 is viewed from below the fixing member 7 along the vertical direction D1. As shown in FIG. 4, the shielding portion 72 includes the entire light source 6 within the projection plane S3 in the vertical direction D1. More specifically, the shielding portion 72 includes terminal portions 64a and 64b (the two terminal portions shown in FIG. 3) within the projection plane S3 in the vertical direction D1. Note that FIG. 4 shows the projection plane S3 of the shielding portion 72 as viewed from below the fixing member 7 along the vertical direction D1, and therefore only one of the two terminal portions 64a and 64b, the terminal portion 64b, is shown. However, the shielding portion 72 also includes the terminal portion 64a within the projection plane S3 in the vertical direction D1. Here, "including terminal portions 64a, 64b within projection surface S3" means that terminal portions 64a, 64b are included within projection surface S3, or that terminal portions 64a, 64b are present within projection surface S3.

[0065] As a result, when water is generated on the inner surface 321 of the top panel 32 due to condensation, the shielding portion 72 can prevent the water from dripping onto the light source 6. More specifically, when water is generated on the inner surface 321 of the top panel 32 due to condensation, the shielding portion 72 can prevent the water from dripping onto the terminal portions 64a, 64b of the light source 6.

[0066] Furthermore, the shielding portion 72 has a lower surface 721 located above the light source 6 and reflecting the light emitted from the light source 6, and the angle between the lower surface 721 and the fixed surface S2 is greater than 90 degrees. Therefore, the direction in which the lower surface 721 reflects the emitted light is between the direction along the horizontal plane A1 and the downward direction. In other words, the lower surface 721 increases the amount of emitted light that is emitted diagonally downward.

[0067] Furthermore, the entire fixing member 7 is made of a metal having heat dissipation properties, so that heat generated by the light source 6 is dissipated via the fixing member 7.

[0068] Furthermore, when performing the locking operation of hooking the notches 711a, 711b, and 711c onto the protrusions 312a, 312b, and 312c, the shielding portion 72 functions as a handle for the fixing member 7, making the locking operation easier.

[0069] (Modification of the first embodiment) Below, we will list some modifications of embodiment 1. The following modifications may be implemented in appropriate combination.

[0070] The number of light sources 6 is not limited to four, and may be one, two, three, or five or more. The number of fixing members 7 is also not limited to four, and may be one, two, three, or five or more.

[0071] The connecting portion 31 in the first embodiment has four side surfaces 310, and each of the four side surfaces 310 is the arrangement surface S1. However, it is sufficient that the connecting portion 31 has at least one side surface 310, and that at least one side surface 310 includes the arrangement surface S1.

[0072] The fixing member 7 in the first embodiment is formed by bending a metal plate. However, the mounting portion 71 and the shielding portion 72 may be separate metal plates, and the fixing member 7 may be formed by welding the mounting portion 71 and the shielding portion 72 together.

[0073] In the first embodiment, the lower surface 721 has a metallic luster and reflects the emitted light because the fixing member 7 is made of a metal plate. However, if the fixing member 7 is made of a material that does not have a metallic luster, such as a resin, the lower surface 721 may be coated with a thin metal film so that the lower surface 721 has a metallic luster and reflects the emitted light.

[0074] Although the shielding portion 72 in the first embodiment includes the entire light source 6 within the projection surface S3 in the vertical direction D1, it is sufficient that the shielding portion 72 includes at least a portion of the light source 6 within the projection surface S3 in the vertical direction D1. For example, the at least a portion of the light source 6 is the terminal portions 64a and 64b. However, the shielding portion 72 may include a portion other than the terminal portions 64a and 64b within the projection surface S3 in the vertical direction D1. For example, the shielding portion 72 may include an exposed portion of the charging portion of the light source 6 to which a voltage is applied within the projection surface S3 in the vertical direction D1.

[0075] Furthermore, the shielding portion 72 of the first embodiment prevents water that has formed on the inner surface 321 of the top panel portion 32 due to condensation from dripping onto the light source 6, but the process by which water drips onto the light source 6 is generated is not limited. For example, if the lighting fixture 1 is installed in a location exposed to rain and rainwater seeps into the space B1 from the top panel portion 32, the shielding portion 72 may prevent the rainwater from dripping onto the light source 6. Note that the shielding portion 72 may also prevent liquids other than water, such as oil, from dripping onto the light source 6.

[0076] In the first embodiment, the fixing member 7 has notches 711a, 711b, and 711c as the second locking portions 711, and the side surface 310 has protrusions 312a, 312b, and 312c as the first locking portions 312. However, as shown in FIG. 5 , the fixing member 7 may have through holes 711d and 711e as the second locking portions 711, and the side surface 310 may have protrusions 312d and 312e as the first locking portions 312. More specifically, the through hole 711d is provided in the upper part of the mounting portion 71, and the through hole 711e is provided in the lower part of the mounting portion 71. The protrusions 312d and 312e are provided in positions on each of the side surfaces 310 corresponding to the through holes 711d and 711e. The distance between the through holes 711d and 711e in the vertical direction D1 is slightly smaller than the distance between the protrusions 312d and 312e in the vertical direction D1. Therefore, by inserting the protrusions 312d and 312e into the through holes 711d and 711e while bending the fixing member 7, the fixing member 7 is locked onto the arrangement surface S1.

[0077] 6, the fixing member 7 may have protrusions 711f and 711g as the second locking portion 711, and the side surface 310 may have holes 312f and 312g as the first locking portion 312. More specifically, the protrusion 711f is provided on the upper part of the mounting portion 71, and the protrusion 711g is provided on the lower part of the mounting portion 71. The protrusions 312d and 312e are provided on each of the side surfaces 310 at positions corresponding to the protrusions 711f and 711g. The distance between the holes 312f and 312g in the vertical direction D1 is slightly smaller than the distance between the protrusions 711f and 711g in the vertical direction D1. Therefore, by inserting the protrusions 711f and 711g into the holes 312f and 312g while bending the fixing member 7, the fixing member 7 is locked to the placement surface S1.

[0078] Although the entire fixing member 7 in the first embodiment is made of a heat-dissipating metal, it is sufficient that at least a part of the fixing member 7 is made of a heat-dissipating material. The "heat-dissipating material" referred to here is, for example, a metal or a heat-dissipating resin.

[0079] Furthermore, the shielding portion 72 only needs to cover the light source 6 from above, and may have fins to increase the surface area. In this case, the fixing member 7 can dissipate the heat generated by the light source 6 more efficiently.

[0080] (Embodiment 2) A lighting device 1A according to the second embodiment will be described below with reference to Fig. 7. Components similar to those in the first embodiment are denoted by the same reference numerals and will not be described again. Furthermore, each of the modifications of the first embodiment may also be applied to the second embodiment as appropriate.

[0081] The second embodiment differs from the first embodiment in that the adapter 4 has an arrangement surface S1 on which the fixing member 7 is arranged. The second embodiment also differs from the first embodiment in the shape of the base 3A.

[0082] 7, the second portion 412 is formed in a cylindrical shape with a substantially constant diameter from the top end to the bottom end. The second portion 412 also has an outer surface 4120 that faces the globe 5. The axial direction of the second portion 412 is along the vertical direction D1, and therefore the outer surface 4120 intersects with the horizontal plane A1. The outer surface 4120 is slightly inclined with respect to the vertical direction D1.

[0083] The fixing member 7 is disposed on the tubular portion 41. More specifically, the fixing member 7 is disposed on the outer surface 4120 of the second portion 412 of the tubular portion 41, as shown in Fig. 7. From the above, the outer surface 4120 intersects with the horizontal plane A1 and is the arrangement surface S1 on which the fixing member 7 is disposed.

[0084] In the second embodiment, the base 3A does not need to have an arrangement surface S1 on which the fixing member 7 is arranged. Therefore, the height dimension of the base 3A can be made smaller than that of the first embodiment. Specifically, in the second embodiment, the height dimension of the connecting portion 31 of the base 3A is smaller than that of the first embodiment. Furthermore, in accordance with the height dimension of the connecting portion 31, the height dimension of the globe 5 is also made smaller than that of the first embodiment.

[0085] The connecting portion 31 has a wiring space 311 through which the electric wire W1 passes. The electric wire W1 passes from the inside of the adapter 4 through the opening 430 in the upper bottom portion 43 of the adapter 4 and the wiring space 311 in the connecting portion 31 into the space between the adapter 4 and the globe 5, and is connected to the terminal portions 64a and 64b provided on the light source 6.

[0086] According to the second embodiment, the height dimension of the lighting device 1A can be made smaller than that of the first embodiment.

[0087] (Modification of the second embodiment) Below, we will list some modifications of the second embodiment. The following modifications may be implemented in appropriate combination.

[0088] Some of the multiple fixing members 7 may be attached to the base 3A, and another part of the fixing members 7 may be attached to the adapter 4. In other words, both the base 3A and the adapter 4 may have the placement surface S1.

[0089] In the first embodiment, at least a part of the base 3 (connecting portion 31) is formed in a columnar shape, and the light source 6 is arranged on a side surface 310 of the connecting portion 31. In contrast, in the second embodiment, the second portion 412 is formed in a cylindrical shape, and the light source 6 is arranged on an outer surface 4120 of the second portion 412. Here, the light source 6 may be arranged on each of the side surface 310 of the connecting portion 31 and the outer surface 4120 of the tubular portion 41.

[0090] (summary) The above-described embodiments and the like disclose the following aspects.

[0091] A lighting fixture (1, 1A) according to a first aspect of the embodiment includes a light source (6), a fixing member (7), and an arrangement surface (S1). The light source (6) is fixed to the fixing member (7). The arrangement surface (S1) intersects with a horizontal plane (A1) and is a surface on which the fixing member (7) is arranged. The fixing member (7) has a shielding portion (72) that covers the light source (6) from above.

[0092] This embodiment has the advantage of being able to prevent the liquid from dripping onto the light source (6).

[0093] In the lighting fixture (1, 1A) of the second aspect according to the embodiment, in the first aspect, the shielding portion (72) includes at least a part of the light source (6) within the projection plane (S3) in the vertical direction (D1).

[0094] This embodiment has the advantage of more reliably preventing the liquid from dripping onto the light source (6).

[0095] In the lighting fixture (1, 1A) of the third aspect of the embodiment, in the second aspect, the light source (6) has terminal portions (64a, 64b) to which power is supplied. The shielding portion (72) includes the terminal portions (64a, 64b) within the projection plane (S3).

[0096] This embodiment has the advantage that liquid can be prevented from dripping onto the terminal portions (64a, 64b).

[0097] The lighting fixture (1) according to a fourth aspect of the present invention is any one of the first to third aspects, and further includes a connecting portion (31) formed in a columnar shape. The connecting portion (31) has at least one side surface (310). The at least one side surface (310) includes the arrangement surface (S1).

[0098] According to this embodiment, the connecting portion (31) is located above the pole (P1), which is advantageous in that the electric wire (W1) can be easily laid.

[0099] The lighting fixture (1A) according to a fifth aspect of the present invention is any one of the first to third aspects, and further includes an adapter (4) attached to the upper end of the cylindrical pole. The adapter (4) has an arrangement surface (S1).

[0100] According to this embodiment, the height of the base (3, 3A) can be reduced, which has the advantage that the lighting fixture (1, 1A) can be easily designed so that the height of the lighting fixture (1, 1A) is reduced.

[0101] In the lighting fixture (1, 1A) according to the sixth aspect of the present embodiment, in any one of the first to fifth aspects, the fixing member (7) is a metal plate.

[0102] This embodiment has the advantage that the shielding portion (72) can be easily formed in the fixing member (7).

[0103] In the lighting fixture (1, 1A) according to a seventh aspect of the embodiment, in any of the first to sixth aspects, the shielding portion (72) is located above the light source (6) and has a lower surface (721) that reflects light emitted from the light source (6).

[0104] This embodiment has the advantage that the shielding portion (72) reflects light emitted upward from the light source (6).

[0105] In the lighting fixture (1, 1A) of the eighth aspect of the embodiment, in the seventh aspect, the lower surface (721) reflects emitted light in a direction between a direction along the horizontal plane (A1) and a downward direction.

[0106] This embodiment has the advantage that the lower surface (721) increases the amount of light emitted from the lighting fixture (1, 1A) between the direction along the horizontal plane (A1) and the downward direction.

[0107] The lighting fixture (1, 1A) according to a ninth aspect of the present invention is any one of the first to eighth aspects, in which at least a part of the fixing member (7) is made of a material having heat dissipation properties.

[0108] According to this embodiment, the fixing member (7) has the advantage of dissipating heat generated by the light source (6).

[0109] In the lighting fixture (1, 1A) of the tenth aspect of the embodiment, in any one of the first to ninth aspects, the fixing member (7) has a second locking portion (711) that locks into a first locking portion (312) provided on the placement surface (S1).

[0110] According to this embodiment, when performing the locking operation of locking the fixing member (7) to the placement surface (S1), the shielding portion (72) functions as a handle for the fixing member (7), which has the advantage of facilitating the locking operation.

[0111] In a lighting fixture (1, 1A) according to an eleventh aspect of the present invention, in any one of the first to tenth aspects, the fixing member (7) includes a fixing surface (S2) to which the light source (6) is fixed. The shielding portion (72) extends from the fixing surface (S2) in a direction intersecting the fixing surface (S2).

[0112] This embodiment has the advantage of more reliably preventing the liquid from dripping onto the light source (6). [Explanation of symbols]

[0113] 1. 1A lighting fixture 31 Connecting part 310 Side 312 First locking part 4 Adapters 6 light source 64a, 64b terminal section 7 Fixing member 711 Second locking part 72 Shielding part 721 Bottom surface S1 placement surface S2 fixed surface S3 projection surface A1 horizontal plane D1 Vertical direction P1 Pole

Claims

1. A light source and a fixing member to which the light source is fixed; an arrangement surface that intersects with the horizontal plane and is a surface on which the fixing member is arranged, the fixing member has a shielding portion that covers the light source from above the light source, the fixing member has a fixing surface to which the light source is fixed, The shielding portion extends from the fixed surface in a direction intersecting the fixed surface. A lighting fixture characterized by:

2. the fixing member has a mounting portion that is placed on the placement surface, The mounting portion and the shielding portion are integrally formed.

2. The lighting fixture according to claim 1, wherein:

3. The shielding portion includes at least a part of the light source within a vertical projection plane.

3. The lighting fixture according to claim 1 or 2, wherein:

4. the light source has a terminal portion to which power is supplied; The shielding portion includes the terminal portion within the projection surface.

4. The lighting fixture according to claim 3.

5. Further provided is a connecting portion formed in a columnar shape, The coupling portion has at least one side surface; The at least one side surface includes the placement surface.

5. The lighting fixture according to claim 1, wherein the light source is a light source.

6. Further provided is an adapter attached to the upper end of the cylindrical pole, The adapter has the placement surface.

5. The lighting fixture according to claim 1, wherein the light source is a light source.

7. The fixing member is a metal plate.

7. The lighting fixture according to claim 1, wherein the light source is a light source.

8. The shielding portion is located above the light source and has a lower surface that reflects light emitted from the light source.

8. The lighting fixture according to claim 1, wherein the light source is a light source.

9. The direction in which the lower surface reflects the emitted light is between a direction along the horizontal plane and a downward direction.

9. A lighting fixture according to claim 8.

10. At least a part of the fixing member is made of a material having heat dissipation properties.

10. The lighting fixture according to claim 1, wherein the light source is a light source.

11. The fixing member has a second locking portion that locks onto a first locking portion provided on the placement surface.

11. The lighting fixture according to claim 1.

12. the first locking portion is a protrusion provided on the arrangement surface, the second locking portion is a notch, The fixing member is fixed to the placement surface by hooking the notch onto the protrusion.

12. A lighting device according to claim 11.

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