Light source unit and lighting device

Abstract

To provide a light source unit which allows a light source part in various weights and sizes to be used, and an illumination device, and to adjust an installation position and angle of the light source part inside the equipment.SOLUTION: A light source unit 100 disposed in a housing 11 of an illumination device body 10 includes: a light source part 40 having a substrate 43 on which a plurality of light emitting elements 43a are mounted and a base plate 47 to which the substrate 43 is attached; and an attaching member 30 for attaching the light source part 40 to the housing 11. The attaching member 30 includes a first holding part 35 for holding the light source part 40 with a first angle B1, and a second holding part 37 for holding the light source part 40 with a second angle B2.SELECTED DRAWING: Figure 8

Description

[Technical Field]

[0001] The present invention relates to a light source unit and a lighting device. [Background technology]

[0002] Traditionally, lighting fixtures equipped with HID lamps have been used for street lighting and the like, but in recent years, they have been increasingly replaced by lighting fixtures that use light-emitting elements such as light-emitting diodes, which are highly efficient and have a long lifespan.In addition, in order to replace the light source part with a light-emitting diode, a lamp that is equipped with a detachable light source part made of a light-emitting diode in a lighting fixture for a conventional HID lamp is known. (See, for example, Patent Document 1). In these lighting devices, a light source portion that emits illumination light is fixed to the lighting fixture body via a socket that the lighting fixture body has. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Utility Model Registration No. 3177908 Summary of the Invention [Problem to be solved by the invention]

[0004] However, when the light source part is fixed to the lighting fixture body via a socket of the lighting fixture body, a load equivalent to the weight of the light source part acts on the socket, which poses a problem that the weight and size of the light source part that can be fixed are limited by the strength of the socket. Furthermore, when the light source is fixed to the lighting fixture body via a socket, the position of the light source part is determined depending on the position of the fixture socket, making it impossible to freely position the light source part within the fixture. In particular, in road lighting, there is a need to be able to adjust the illumination angle depending on the width, height, and spacing of the road where the fixture is installed. The present invention aims to provide a light source unit and a lighting device that can use light source parts with various weights and dimensions, and that makes it possible to adjust the installation position and angle of the light source part inside the fixture. [Means for solving the problem]

[0005] One aspect of the present invention is a light source unit that is placed within a housing of a lighting fixture body, and includes: a light source portion having a board on which a plurality of light-emitting elements are mounted and a base plate to which the board is attached; and an attachment member that attaches the light source portion to the housing, wherein the attachment member includes a first holding portion that holds the light source portion at a first angle and a second holding portion that holds the light source portion at a second angle.

[0006] In one aspect of the present invention, in the light source unit, the light source portion includes a protrusion that protrudes laterally, and the attachment member holds the protrusion.

[0007] In one aspect of the present invention, in the light source unit, the protrusion is formed of a fastening member, and the fastening member is fastened to the base plate together with the mounting member to fix the light source portion.

[0008] In one aspect of the present invention, in the light source unit, the light source portion has a substantially rectangular shape, and the protrusions protrude from two opposing sides.

[0009] One aspect of the present invention is characterized in that, in the above-mentioned light source unit, the lighting fixture body has a socket, the light source portion has a first connector connected to the light-emitting element, and a base assembly in which a base connected to the socket and a second connector connected to the first connector are connected by a cable.

[0010] In one aspect of the present invention, in the light source unit, the base plate includes a cable hook portion for hooking the cable.

[0011] One aspect of the present invention is characterized in that, in the above-mentioned light source unit, the base and the cable are connected via a base substrate, and the base substrate is equipped with a reverse connection prevention diode that prevents reverse flow of current flowing between the base and the cable.

[0012] In one aspect of the present invention, in the light source unit, the lighting fixture body is a fixture body for an HID lamp.

[0013] One aspect of the present invention is a lighting device comprising a support and a lighting fixture body fixed to the support, wherein the above-mentioned light source unit is disposed within a housing of the lighting fixture body. [Effects of the Invention]

[0014] According to the present invention, it is possible to use light source parts having various weights and dimensions, and it is also possible to adjust the installation position and angle of the light source part inside the fixture. [Brief explanation of the drawings]

[0015] [Figure 1] FIG. 1 is a side view of a lighting fixture according to a first embodiment. [Figure 2] FIG. [Figure 3] FIG. [Figure 4] FIG. [Figure 5] FIG. [Figure 6] FIG. [Figure 7] FIG. [Figure 8] Side cross-sectional view of the lighting fixture body (first angle). [Figure 9] Side cross-sectional view of the lighting fixture body (second angle). [Figure 10] FIG. 10 is an exploded perspective view of a lighting fixture body according to another embodiment. [Figure 11]10 is a side cross-sectional view (first angle) of a lighting fixture body according to another embodiment. [Figure 12] 10 is a side cross-sectional view (at a second angle) of a lighting fixture body according to another embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0016] Hereinafter, an embodiment of the present invention will be described with reference to the drawings. (First embodiment) [1. Overall structure] FIG. 1 is a side view of a lighting device 1 according to a first embodiment of the present invention, and shows a schematic configuration of the lighting device 1. As shown in FIG.

[0017] This lighting device 1 is a road light used primarily to illuminate road surfaces G such as roadways, and includes a support pole 3, an arm 5, and a lighting fixture body 10. The support pole 3 is a column fixed vertically to the road surface G such as a roadway. The arm 5 is a component fixed horizontally to the upper end of the support pole 3. Note that there is also a pole-top type in which the arm 5 is not provided and the lighting fixture body 10 is installed on top of the support pole 3. In this embodiment, the direction in which the support pole 3 extends from the road surface G is defined as upward, the direction in which the arm 5 extends from the support pole 3 is defined as forward, and the direction toward the front of the page in FIG. 1 is defined as leftward. Hereinafter, directions in the text, such as up / down, left / right, front / back, etc., will follow the above definitions unless otherwise specified.

[0018] The lighting fixture body 10 is the part of the lighting device 1 that emits illumination light, and is used while fixed to the tip of the arm 5. The lighting fixture body 10 includes a light source part 40. The lighting fixture body 10 includes a box-shaped housing 11, and the light source part 40 is detachable inside the housing 11. The lighting fixture body 10 illuminates the road surface G by emitting the illumination light emitted from the light source part 40 downward. The lighting fixture body 10 will be described in detail later.

[0019] An AC wiring 7 and a power supply wiring 4 are provided inside the support 3. The AC wiring 7 is a wiring that is routed from underground under the road surface G into the inside of the support 3, and draws commercial AC power supplied from outside into the inside of the support 3. The AC wiring 7 is connected to a power supply device 6 provided at the bottom of the support 3. The power supply device 6 has a built-in power supply circuit that converts commercial AC power into DC power, and converts the AC power supplied from the AC wiring 7 into DC power and supplies the DC power to the power supply wiring 4. The power supply wiring 4 is a wiring that is routed inside the support 3 and the arm 5, and electrically connects the power supply device 6 and the light source part 40.

[0020] Fig. 2 is a perspective view of the lighting fixture body 10, showing the internal structure of the lighting fixture body 10 as viewed from above. Fig. 3 is an exploded perspective view of the lighting fixture body 10, showing the internal structure of the lighting fixture body 10 as viewed from above with the cover of the lighting fixture body 10 removed.

[0021] As shown in Figures 2 and 3, the lighting fixture body 10 has an existing socket 13 inside a box-shaped housing 11. The socket 13 is electrically connected to a power supply unit 6 via a power wiring 4. The socket 13 also serves as a jig into which a screw-in (rotating) base, generally called an E-type base, such as an E26 type or E39 type, can be screwed, electrically connecting the supported base to the power supply unit 6. The lighting fixture body 10 is for use with, for example, existing HID lamps (High Intensity Discharge Lamps), but in this embodiment, the existing HID lamp is replaced with a light source unit 100, which will be described later.

[0022] The housing 11 has an irradiation port 11a facing downward. The irradiation port 11a is formed by opening the housing 11 downward, and is covered from above by a cover 11b. The cover 11b is a transparent plate-like member arranged to cover the irradiation port 11a from the inside of the housing 11. The cover 11b is fixed to the housing 11 by a packing fixing plate 11d, together with a packing 11c arranged along the edge of the cover 11b. The packing fixing plate 11d is formed on the housing 11 with gaps above and below the edge of the irradiation port 11a, and sandwiches the cover 11b and the packing 11c arranged in the gap. The packing fixing plate 11d can be screwed from above, and by being fastened together with an attachment member 30 described below, the cover 11b, the packing 11c, and the attachment member 30 are each fixed to the housing 11.

[0023] The lighting fixture body 10 includes a light source unit 100 and a base assembly 50. The light source unit 100 includes an attachment member 30 and a light source portion 40. As shown in FIGS. 2 and 3 , the light source portion 40 of the light source unit 100 is fixed to the housing 11 via a pair of left and right attachment members 30. The light source portion 40 is disposed by the mounting member 30 above the irradiation port 11a so as to emit illumination light downward. Furthermore, the light source portion 40 is electrically connected to the socket 13 by the base assembly 50. As a result, the DC power supplied from the power supply device 6 flows to the light source portion 40, and the light source portion 40 emits illumination light.

[0024] As shown in FIG. 3, the mounting members 30 are a pair of two members arranged side by side in the left-right direction. The pair of mounting members 30 have shapes that are symmetrical to each other. The mounting members 30 are formed by bending a metal plate, and have a bottom portion 31 and an upright portion 33. The bottom portion 31 is the portion of the mounting member 30 that contacts the housing 11, and is a surface that is approximately parallel to the irradiation port 11a. The bottom portion 31 has fixing portions 31a that are two notches arranged in the front-rear direction. The mounting members 30 are fixed to the housing 11 by fastening the fixing portions 31a together with the packing fixing plate 11d.

[0025] The standing portion 33 is a plate-shaped portion rising upward from the inner end of the bottom portion 31 in the left-right direction. The standing portion 33 is formed with a first groove portion 35a, a second groove portion 35b, a third groove portion 37a, and a fourth groove portion 37b, each of which opens at the upper end of the standing portion 33 and extends downward. The lower ends of the first groove portion 35a and the second groove portion 35b are formed apart by a distance D1. The lower ends of the third groove portion 37a and the fourth groove portion 37b are also formed apart by a distance D1. The pair of first groove portions 35a and the pair of second groove portions 35b are collectively defined as a first retaining portion 35. Similarly, the pair of third groove portions 37a and the pair of fourth groove portions 37b are collectively defined as a second retaining portion 37. As will be described later, the first holding portion 35 and the second holding portion 37 hold the protruding portion 44, thereby holding the light source portion 40, respectively.

[0026] Fig. 4 is an exploded perspective view of light source portion 40, showing each part of light source portion 40 as viewed from below. Fig. 5 is a perspective view of light source portion 40 as viewed from above. Fig. 6 is a plan view of light source portion 40 as viewed from above. As shown in Fig. 4, light source portion 40 is configured by stacking a light distributing lens 41, a substrate 43, a heat conduction sheet 45, and a base plate 47 from bottom to top.

[0027] As shown in FIG. 4, the light distributing lens 41 is a plate-like lens formed by arranging a plurality of hemispherical concave and convex portions, and is made of a highly transparent material such as polymethyl methacrylate resin. The substrate 43 is a printed circuit board on which a plurality of light-emitting elements 43a are mounted. The light-emitting elements 43a are, for example, LEDs (Light Emitting Diodes) and are mounted facing the light distributing lens 41. The substrate 43 receives a supply of DC power, causing the light-emitting elements 43a mounted on the substrate 43 to emit light. The illumination light emitted by the light-emitting elements 43a is diffused by the light distributing lens 41 and illuminates the road surface G through the irradiation port 11a. In this embodiment, the light source unit 40 holds two light distributing lenses 41 and two substrates 43, both of which are substantially square, lined up in the front-to-rear direction.

[0028] The heat conduction sheet 45 is made of a resin or the like with high thermal conductivity, and is in close contact with the substrate 43 and the base plate 47, thereby conducting heat generated in the substrate 43 to the base plate 47. The base plate 47 is a member formed by bending a metal plate. The heat conduction sheet 45, the substrate 43, and the light distribution lens 41 are sequentially stacked and fixed to the lower surface 47a of the base plate 47 by screws.

[0029] 5, the base plate 47 has a rear surface 47b that rises upward from the rear of the lower surface 47a, and a pair of side surfaces 47c that rise upward from both left and right ends of the lower surface 47a. Two cable hooks 47e, which are L-shaped cutouts, are formed side by side in the left-right direction on the rear surface 47b. The cable hooks 47e are formed to open at the upper end of the rear surface 47b, extend downward, and then bend to the right.

[0030] A pair of first fastening holes 47f and a pair of second fastening holes 47g are respectively provided on the pair of side surfaces 47c. The pair of first fastening holes 47f are formed at positions overlapping each other in the left-right direction. The pair of second fastening holes 47g are formed at positions overlapping each other in the left-right direction. The first fastening hole 47f and the second fastening hole 47g formed on one side surface 47c are formed at positions spaced apart by a distance D1. The first fastening hole 47f and the second fastening hole 47g are holes to which a fastening member 46 can be attached by fastening. The fastening member 46 is a thumbscrew and has a shaft portion that screws into the first fastening hole 47f and the pair of second fastening holes 47g, a head portion that is wider than the shaft portion, and a knob formed on the head portion. Note that the fastening member 46 may be a bolt or screw other than a thumbscrew, such as a hexagon socket head bolt.

[0031] As shown in FIG. 6 , the light source unit 40 has a generally rectangular shape in a plan view from above. The fastening members 46 are attached to the first fastening holes 47f and the second fastening holes 47g with the left-right direction as their axes. Hereinafter, the four fastening members 46 attached to the pair of first fastening holes 47f and the pair of second fastening holes 47g are defined as protrusions 44. The protrusions 44 protrude laterally from the side surfaces 47c located on two opposite sides of the generally rectangular light source unit 40 in the left-right direction. The two protrusions 44 aligned in the front-rear direction are spaced a distance D1 apart from each other due to the relative positions of the first fastening holes 47f and the pair of second fastening holes 47g. As a result, the four protrusions 44 are inserted from above into the first holding unit 35 or the second holding unit 37 and are held by the first holding unit 35 or the second holding unit 37.

[0032] In the light source portion 40, a large number of heat dissipation fins 48 are fixed along the front-rear and up-down directions by dowel crimping or burring crimping on the upper surface 47i of the base plate 47. The heat dissipation fins 48 are fins formed by bending a metal plate, and dissipate heat transferred from the base plate 47.

[0033] Furthermore, on the rear surface 47b, a first connector 49 is fixed by screws to the right of the two cable hook portions 47e. The first connector 49 is a connector that can be connected to a second connector 59 of a base assembly 50, which will be described later. A wire 49a extends from the front of the first connector 49, and the first connector 49 is electrically connected to the substrate 43 and the light-emitting element 43a by a branch wire 49b that is a wire that branches off from the wire 49a. As shown in FIG. 6, when a second connector 59, which will be described later, is connected to the first connector 49, a cable 57, which will be described later and extends from the second connector 59, can be hooked onto the cable hook portion 47e.

[0034] 7 is an exploded perspective view of the base assembly 50. The base assembly 50 has a base 51, a base substrate holding member 53, a base substrate 55, a cable 57, a second connector 59, and a base cover 52.

[0035] Base 51 is, for example, a screw-in type base known as an E-type base used for existing HID lamps, and is electrically connected to socket 13 by being screwed into socket 13. This allows base assembly 50 to be attached to an existing lighting fixture body 10 for an HID lamp via base 51. Base 51 may also be, for example, a plug-in type base. Base substrate holding member 53 is a hollow member made of, for example, resin, and is fixed to the inside of base 51, and holds base substrate 55 inserted into internal groove 53a.

[0036] Base substrate 55 is a printed circuit board having a reverse connection prevention diode 55a and a fuse 55b, and electrically connects base 51 and cable 57. Reverse connection prevention diode 55a is a diode mounted on base substrate 55, and by allowing current to flow in only one direction, prevents reverse current flow between base 51 and cable 57. Fuse 55b cuts off the circuit when a current greater than a predetermined value flows through base substrate 55.

[0037] The base cover 52 is a plate-shaped member that is fixed to the base substrate holding member 53 by screws. By being fixed to the base substrate holding member 53, the base cover 52 covers and conceals the base substrate 55 held inside the base substrate holding member 53. The base cover 52 also has a notched outlet 52a. The cable 57 can be drawn from the inside to the outside of the base substrate holding member 53 through the outlet 52a.

[0038] The cable 57 is configured by inserting two electric wires into a tube, and electrically connects the base substrate 55 and the second connector 59. The second connector 59 can be connected to the first connector 49, and is electrically connected to the first connector 49 by the connection.

[0039] The base assembly 50 electrically connects the socket 13 and the first connector 49 by inserting the base 51 into the socket 13 and connecting the second connector 59 to the first connector 49. This causes DC power to be supplied from the power supply device 6 to the substrate 43, causing the light-emitting element 43a to emit light.

[0040] [2. Configuration of the first holding portion and the second holding portion] Fig. 8 is a side cross-sectional view of the lighting fixture body 10, showing the internal configuration of the lighting fixture body 10 when the light source portion 40 of the light source unit 100 is held by the first holding portion 35. Fig. 9 is a side cross-sectional view of the lighting fixture body 10, showing the internal configuration of the lighting fixture body 10 when the light source portion 40 is held by the second holding portion 37.

[0041] As shown in FIG. 8 , the first holding portion 35 supports the shaft of the fastening member 46 constituting the protrusion 44 with the bottom of the first groove 35a and the bottom of the second groove 35b, thereby holding the light source portion 40. Therefore, the load of the light source portion 40 acts on the housing 11 of the lighting fixture body 10 via the mounting member 30. Furthermore, by further tightening the fastening member 46 in this state, the fastening member 46 fixes the upright portion 33 of the mounting member 30 to the base plate 47 of the light source portion 40. At this time, in a side view from the left, the mounting surface of the substrate 43 on which the light-emitting element 43a is mounted faces substantially vertically downward. The angle of the light source portion 40 at this time is defined as a first angle B1.

[0042] 8, an imaginary line L1 connecting the bottom of the first groove portion 35a and the bottom of the second groove portion 35b and an imaginary line L2 connecting the bottom of the third groove portion 37a and the bottom of the fourth groove portion 37b are oriented in different directions by an angle A. The front portion of imaginary line L2 is inclined upward by an angle A greater than that of imaginary line L1.

[0043] 9, the second holder 37 holds the protrusion 44, thereby holding the light source portion 40 at a second angle B2 different from the first angle B1. The second angle B2 is an angle obtained by rotating the light source portion 40 so that the front of the light source portion 40 faces upward by an angle difference A from the first angle B1.

[0044] The light source portion 40 emits illumination light in different directions when held by the first holding portion 35 at a first angle B1 and when held by the second holding portion 37 at a second angle B2. Therefore, the luminance distribution and average road surface luminance of the light irradiated onto the road surface G from the irradiation port 11a differ between when the light source portion 40 is held by the first holding portion 35 and when the light source portion 40 is held by the second holding portion 37.

[0045] In this embodiment, when the first holding part 35 holds the light source part 40 as in Fig. 8, the lamp is suitable for use as a road light for illuminating a two-lane national highway, etc. When the second holding part 37 holds the light source part 40 as in Fig. 9, the lamp is suitable for use as a road light for illuminating a three-lane national highway, a freeway, etc.

[0046] [3. Operation when installing the light source] The operation of the light source unit 100 configured as described above when an operator installs the light source portion 40 on the lighting fixture body 10 will be described below. At the start of the operation, the lighting fixture body 10, the mounting member 30, the light source portion 40, and the base assembly 50 are not yet connected to each other. Furthermore, the component parts that make up each of the lighting fixture body 10, the light source portion 40, and the base assembly 50 are already assembled.

[0047] First, the worker connects the pair of mounting members 30 and the light source portion 40. That is, the worker inserts the four protrusions 44 all the way into the first groove 35a and the second groove 35b of the first holding portion 35, or the third groove 37a and the fourth groove 37b of the second holding portion 37. At this time, the worker selects where to insert the protrusions 44 depending on the intended use of the lighting device 1 and the surrounding environment. As a result, the light source portion 40 is held by the first holding portion 35 or the second holding portion 37. Next, the worker further tightens the fastening members 46 that constitute the four protrusions 44. As a result, the pair of mounting members 30 and the light source portion 40 are fixed to each other.

[0048] Next, the worker tightens the fixing portion 31a of the mounting member 30 and the packing fixing plate 11d together with a screw, connecting the pair of mounting members 30 to the lighting fixture main body 10. This fixes the mounting members 30 to the housing 11, and fixes the light source portion 40 in a predetermined positional relationship with the irradiation port 11a. In other words, the light source portion 40 is fixed to the lighting fixture main body 10.

[0049] The above-described connection between the pair of mounting members 30 and the light source portion 40 and the connection between the pair of mounting members 30 and the lighting fixture body 10 can be performed in any order.

[0050] Next, the worker screws the base 51 into the socket 13 and fixes it, thereby connecting the base assembly 50 to the lighting fixture body 10. This electrically connects the socket 13 and the base 51.

[0051] Next, the worker connects the second connector 59 to the first connector 49. At this time, the worker hooks the remaining cable 57 onto the cable hook portion 47e so that the cable 57 does not block the light emitted from the light-emitting element 43a. By connecting the second connector 59 to the first connector 49, the board 43 receives a supply of DC power from the power supply device 6, and the light-emitting element 43a lights up. In this way, by connecting the first connector 49 and the second connector 59 after screwing the base 51 into the socket 13, the cable 57 is less likely to twist.

[0052] [4. Effects, etc.] As described above, this embodiment provides the following advantages.

[0053] Light source unit 100 is a light source unit arranged in housing 11 of lighting fixture body 10, and includes a light source portion 40 having a board 43 on which a plurality of light-emitting elements 43a are mounted and a base plate 47 to which board 43 is attached, and an attachment member 30 that attaches light source portion 40 to housing 11. Mounting member 30 includes a first holding portion 35 that holds light source portion 40 at a first angle B1, and a second holding portion 37 that holds light source portion 40 at a second angle B2. This allows the load of the light source portion 40 to be borne by the housing 11, and the weight and dimensions of the light source portion 40 can be freely selected. Furthermore, the angle at which the light source portion 40 is attached to the lighting fixture body 10 can be easily changed via the attachment member 30, making it easy to achieve lighting that suits the surrounding environment and the purpose of use. Furthermore, by changing the shape of the mounting member 30 to match the shape of the housing 11, the light source portion 40 can be attached to various lighting fixture bodies 10. Therefore, the light source portion 40 can be made common among light source portions 40 for multiple types of lighting fixture bodies 10, and the manufacturing cost of the light source portion 40 can be reduced.

[0054] In this embodiment, the light source portion 40 has a protrusion 44 that protrudes laterally, and the mounting member 30 holds the protrusion 44 . This allows the light source portion 40 to be easily attached to the lighting fixture body 10 via the attachment member 30.

[0055] In this embodiment, the protrusion 44 is formed by a fastening member 46, and the fastening member 46 is fastened to the base plate 47 together with the mounting member 30 to fix the light source portion 40. This allows the light source portion 40 to be easily fixed to the mounting member 30, and increases the strength of the light source portion 40.

[0056] In this embodiment, the light source portion 40 has a substantially rectangular shape, and protrusions 44 protrude from two opposing sides. As a result, the light source portion 40 is held by the attachment member 30 at two opposing sides via the protrusions 44. Therefore, the light source portion 40 is held stably. Furthermore, by providing the protrusions 44 on two opposing sides of the substantially rectangular shape, the light source portion 40 can be easily attached to the attachment member 30.

[0057] In this embodiment, the lighting fixture body 10 includes a socket 13, and the light source section 40 includes a first connector 49 connected to the light emitting element 43a. The light source section 40 includes a base assembly 50 in which a base 51 connected to the socket 13 and a second connector 59 connected to the first connector 49 are connected by a cable 57. This allows the light source portion 40 to be attached to the lighting fixture body 10 at a plurality of angles without applying a large load to the socket 13. Furthermore, by configuring the base assembly 50 to be separate from the light source portion 40, the base assembly 50 can be made common to multiple types of light source portion 40 for each size of the corresponding socket 13. This allows the manufacturing cost of the light source portion 40 to be reduced.

[0058] In this embodiment, the base plate 47 has a cable hook portion 47e for hooking the cable 57 thereon. This prevents the irradiated light from being blocked by the excess cable 57. For example, when the position where the light source portion 40 is held is significantly different between the first holding part 35 and the second holding part 37, the excess cable 57 can be easily stored.

[0059] In this embodiment, the base 51 and the cable 57 are connected via a base substrate 55, and the base substrate 55 is equipped with a reverse connection prevention diode 55a that prevents reverse current flow between the base 51 and the cable 57. As a result, if the base 51 and socket 13, or the first connector 49 and second connector 59, are connected in the wrong direction, no current will flow to the light source unit 40. Therefore, the base assembly 50 can prevent the light source unit 40 from failing due to reverse connection.

[0060] In this embodiment, the lighting fixture body 10 is a fixture body for an HID lamp. As a result, the light source portion 40 can be easily and inexpensively attached to an existing lighting fixture body 10 for an HID lamp by replacing the existing HID lamp. Furthermore, since the angle of the light source portion 40 can be changed, even if the angle of the lighting fixture body 10 itself cannot be changed, lighting that suits the surrounding environment and purpose can be achieved.

[0061] In this embodiment, the lighting device 1 includes a support 3 and a lighting fixture body 10 fixed to the support 3, and a light source unit 100 is disposed inside a housing 11 of the lighting fixture body 10. This makes it possible to provide the lighting device 1 with a high degree of freedom in the weight and dimensions of the light source portion 40. Furthermore, since the angle at which the light source portion 40 is attached to the lighting fixture body 10 can be easily changed, it is possible to provide a lighting device 1 that can easily achieve lighting that suits the surrounding environment and the purpose of use.

[0062] 5. Other Embodiments The above-described embodiment is merely an example of one aspect of the present invention, and any modifications and applications are possible without departing from the spirit and scope of the present invention. Therefore, other embodiments are exemplified below.

[0063] In the first embodiment, it has been described that the first holding portion 35 is configured by a pair of first grooves 35a and a pair of second grooves 35b, and the second holding portion 37 is configured by a pair of third grooves 37a and a pair of fourth grooves 37b. It has also been described that the protrusion 44 is configured by the fastening member 46 and is supported by being inserted into the first holding portion 35 and the second holding portion 37. However, this is just an example.

[0064] Fig. 10 is an exploded perspective view of a lighting fixture body 10 according to another embodiment. Fig. 11 is a side cross-sectional view of the lighting fixture body 10 according to another embodiment, showing the internal structure of the lighting fixture body 10 when the protrusion 144 is held by the first holding portion 135. Fig. 12 is a side cross-sectional view of the lighting fixture body 10 according to another embodiment, showing the internal structure of the lighting fixture body 10 when the protrusion 144 is held by the second holding portion 137.

[0065] For example, as shown in FIG. 10, the first retaining portion 135 and the second retaining portion 137 may be formed by bending the standing portion 33 outward, and the protrusion 144 may be formed by bending the side surface 47c of the base plate 47 outward in the left-right direction.

[0066] 11 and 12, first holding portion 135 and second holding portion 137 hold protrusion 144 by abutting against it from below. Furthermore, protrusion 144 is screwed to first holding portion 135 and second holding portion 137 by thumbscrew 146. As shown in FIG. 11, first holding portion 135 and second holding portion 137 are plate-shaped portions that differ in angle from each other by angle difference A. Therefore, a first angle B1, which is the angle of light source portion 40 when first holding portion 135 holds protrusion 144, and a second angle B2, which is the angle of light source portion 40 when second holding portion 137 holds protrusion 144, differ from each other by angle difference A.

[0067] In the first embodiment, the light source portion 40 of the light source unit 100 is described as being substantially rectangular. However, this is merely an example. For example, the light source portion 40 may be bent in a V-shape. In the first embodiment, the pair of mounting members 30 is described as being arranged side by side in the left-right direction, but this is merely an example. For example, the pair of mounting members 30 may be arranged side by side in the front-to-rear direction and fixed to the housing 11. In the first embodiment, the mounting member 30 is described as having a first holding portion 35 and a second holding portion 37. However, the mounting member 30 may have three or more holding portions, such as a third holding portion that holds the light source portion 40 at a third angle. [Explanation of symbols]

[0068] 1. Lighting equipment 3 pillars 10 Lighting fixture body 11. Housing 13 sockets 30 Mounting material 35 1st holding part 37 Second holding part 40 Light source part 43 Circuit Board 43a Light-emitting element 44 Protrusion 46 Fastening members 47 Base Plate 47e Cable hook 49 First Connector 50 Cap assembly 51 nozzle 55 Base board 55a Reverse polarity protection diode 57 Cable 59 Second Connector 100 Light Source Unit 135 1st holding part 137 Second holding part 144 Protrusion B1 1st angle B2 2nd angle

Claims

1. A light source unit disposed within a housing of a lighting fixture body, a light source portion including a substrate on which a plurality of light-emitting elements are mounted and a base plate to which the substrate is attached; an attachment member that attaches the light source portion to the housing; Equipped with the mounting member includes a first holding portion that holds the light source portion at a first angle and a second holding portion that holds the light source portion at a second angle; the first holding portion and the second holding portion are grooves in the mounting member that are open at their upper ends, The light source portion includes a protrusion that protrudes laterally, The mounting member holds the protrusion at the bottom of the groove. A light source unit characterized by:

2. The protrusion is formed of a fastening member, and the fastening member is fastened to the base plate together with the mounting member to fix the light source portion.

2. The light source unit according to claim 1.

3. The light source portion has a substantially rectangular shape, and the protrusions protrude from two opposing sides.

3. The light source unit according to claim 2.

4. The lighting fixture body includes a socket, the light source portion includes a first connector connected to the light emitting element; a base assembly in which a base connected to the socket and a second connector connected to the first connector are connected by a cable; 2. The light source unit according to claim 1.

5. The base plate has a cable hook portion for hooking the cable.

5. The light source unit according to claim 4.

6. the base and the cable are connected via a base substrate, The base substrate is provided with a reverse connection prevention diode that prevents a reverse current flow between the base and the cable.

5. The light source unit according to claim 4.

7. The lighting fixture body is a lighting fixture body for an HID lamp.

7. The light source unit according to claim 1, wherein the light source unit is a light source unit having a light source.

8. The pillars and a lighting fixture body fixed to the support; Equipped with The light source unit according to any one of claims 1 to 6 is disposed in a housing of the lighting fixture body. A lighting device characterized by:

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