Lighting apparatus

Abstract

To solve the problem that, in a long lighting fixture, when a light source unit is mounted on a fixture body, the vicinity of the center is bent by the own weight of the long light source unit.SOLUTION: The long lighting fixture 1 is provided with a long fixture body 3 and a long light source unit 5, and the fixture body 3 is provided with a gutter-shaped housing recessed part 32 formed of a bottom face part 34 and a pair of long side face parts 35, 36. The cover portion 54 has a hollow structure in which a light emission cover portion 54A that emits light emitted from the light source substrate 51 and a support cover portion 54B that supports the light source substrate 51 are integrally molded, the support cover portion 54B has a side surface portion 547 that is accommodated in the accommodation recess portion 32, and the side surface portion 547 has an elastic protrusion portion 54R that faces outward; When the side face part 547 is housed in the housing recessed part 32, the projecting part 54R is brought into pressure contact with the inside of the long side face part 35.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to a light source unit and a lighting fixture including the light source unit, and more particularly to a lighting fixture in which the fixture body and the light source unit are separated. [Background technology]

[0002] Among long lighting fixtures, there is one that includes a light source unit and a fixture body having a recess for accommodating the light source unit (see Patent Document 1). This lighting fixture discloses a lighting fixture in which the light source unit is removably attached to the fixture body by pressing against the inner surface of the fixture body due to the elasticity of an attachment member provided on the light source unit. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2022-79694 Summary of the Invention [Problem to be solved by the invention]

[0004] However, the above-described lighting fixture has a problem in that when the light source unit is attached to the fixture body, the weight of the elongated light source unit causes bending near the center.

[0005] The present invention has been made in consideration of such problems, and aims to provide a lighting fixture that prevents the central part of the light source unit from bending when the long light source unit is attached to the fixture body. [Means for solving the problem]

[0006] In order to solve the above problems, the present invention provides a long-shaped lighting fixture comprising a long-shaped fixture body and a long-shaped light source unit, wherein the fixture body comprises a gutter-shaped storage recess formed by a bottom surface portion and a pair of long side surface portions, the light source unit comprises a light source substrate and a cover portion, the cover portion is made of resin and has a hollow structure in which a light emission cover portion that emits light emitted from the light source substrate and a support cover portion that supports the light source substrate are integrally molded, the support cover portion has side surfaces that are accommodated in the storage recess, the side surfaces have elastic protrusions that face outward, and when the side surfaces are accommodated in the storage recess, the protrusions are pressed against the inside of the long side surface portions. [Effects of the Invention]

[0007] With the above-described configuration, the lighting fixture according to the present invention can provide a lighting fixture that prevents the central portion of the elongated light source unit from bending when the light source unit is attached to the fixture body. [Brief explanation of the drawings]

[0008] [Figure 1] 1A is a bottom perspective view of a lighting fixture according to an embodiment of the present invention, and FIG. 1B is a bottom perspective view showing the lighting fixture in a state before installation. [Figure 2] 1A is a top perspective view showing a state in which the connecting spring part is attached to the support cover part, and FIG. 1B is a top perspective view of the spring receiver. [Figure 3] (a) is a side view of the lighting fixture, and (b) is a cross-sectional view taken along line AA of the same. [Figure 4] 1A is a front view of a light source unit (rear components are not shown), and FIG. 1B is a side view of the vicinity of one end of the light source unit. [Figure 5] 1A is a front view showing a state in which an end cover is removed from a light source unit (rear components are not shown), and FIG. 1B is a bottom view showing a light exit cover portion of the light source unit in a see-through manner. DETAILED DESCRIPTION OF THE INVENTION

[0009] <1. First embodiment> <1.1. Overview> A lighting fixture 1 according to a first embodiment of the present invention will now be described with reference to the drawings. FIG. 1(a) is a bottom perspective view of the lighting fixture 1. FIG. 1(b) is a bottom perspective view showing the lighting fixture 1 before installation. The arrow in FIG. 1(a) indicates the front of the lighting fixture. Here, the lighting fixture 1 is assumed to be mounted on a ceiling as an example of an installation location. In the following description, the direction toward the floor as viewed from the ceiling is referred to as "down" and the direction toward the ceiling as viewed from the floor is referred to as "up." Note that in each drawing, the lighting fixture may be appropriately represented in various proportions, e.g., by making the short side longer and the long side shorter, to avoid distortion of lines. To facilitate understanding of the present invention, some components may be omitted or exaggerated to facilitate understanding. Furthermore, when describing the configuration of a component with a symmetrical shape, if the description clearly involves repetition, only one of the left and right sides may be described to avoid repetition.

[0010] <1.2.Configuration> As shown in Figures 1(a) and 1(b), the lighting fixture 1 is a lighting fixture that is attached to a ceiling. As an example, the lighting fixture 1 has an elongated, approximately rectangular parallelepiped shape with a short side length of about 17 mm and a long side length of about 1200 mm. The lighting fixture 1 includes a lighting fixture main body 3 and a light source unit 5, and the lighting fixture main body 3 and the light source unit 5 are configured to be separable.

[0011] The fixture body 3 constitutes part of the exterior of the lighting fixture 1 and is the main body of the lighting fixture 1 that houses at least part of the light source unit 5. As shown in FIGS. 1(a) and 1(b), the fixture body 3 includes a housing 31, an end cap 39, and a spring receiver 37. The spring receiver 37 is a member used in combination with a connecting spring part 55, which will be described later, and is sometimes referred to as a fixture body-side connecting part.

[0012] Fig. 3(b) is a cross-sectional view taken along line AA of the lighting fixture 1. The light source unit 5 constitutes part of the exterior of the lighting fixture 1 and is the part that is responsible for emitting light as a lighting fixture. As shown in Figs. 1(a), 1(b), and 3(b), the light source unit 5 includes a light source substrate 51, a cover 54, an end cover 59, a power supply 56, wiring 58, and a connecting spring 55. The power supply 56 and the connecting spring 55 are sometimes referred to as rear components.

[0013] Fig. 5(a) is a front view showing a state in which an end cover 59 is removed from the light source unit 5. Fig. 5(b) is a bottom view of the light source unit 5 seen through a light exit cover portion 54A (described later).

[0014] 1(b), 3(b), 5(a) and 5(b), the wiring 58 includes a power input wiring section 58i, a power supply feed wiring section 58p, and a light source drive wiring section 58o. The connecting spring section 55 is sometimes referred to as a light source unit side connecting component. <1.2.1. Device body>

[0015] The housing 31 is a member that forms the outer shell of the device main body 3. The housing 31 is formed by extruding a metal such as aluminum, and holes are drilled on the top surface. Metal end caps 39 are welded to both ends in the longitudinal direction, as shown in Figures 1(a) and 1(b). This gives the device main body 3 the appearance of a long, narrow box that is open at the bottom.

[0016] 3(b), the housing 31 has a bottom surface portion 34 and long side surface portions 35 and 36. The long side surface portions 35 and 36 have protrusions 35P and 36P, respectively.

[0017] The bottom surface portion 34 is a long portion at the top of the fixture body 3. The long side surface portions 35 and 36 are portions that extend downward from the two long sides of the bottom surface portion 34. The bottom surface portion 34 and the long side surface portions 35 and 36 form a gutter shape that is open downward and in the longitudinal direction, and form an accommodating recess 32 that can accommodate part of the light source unit 5.

[0018] The bottom surface 34 is provided with a power supply hole for passing electrical wires such as an electric light wire 98 that is exposed from the ceiling 9 and supplies power to the lighting fixture 1. The bottom surface 34 also has two fixture mounting holes, one at each end in the longitudinal direction, for fixing the fixture body 3 to the ceiling 9 with wood screws or the like.

[0019] The protrusions 35P and 36P are provided near the openings of the long side surface portions 35 and 36, and prevent the light source unit 5 from entering the storage recess 32 more than necessary when the light source unit 5 is attached to the fixture body 3.

[0020] <1.2.3.Spring holder> 2(a) is a top perspective view showing a state in which the connecting spring part 55 is attached to the support cover part, and FIG. 2(b) is a top perspective view of the spring receiver 37.

[0021] The spring receiver 37 is disposed on the bottom surface portion 34 and is a fixture body side connecting component for attaching the light source unit 5 to the fixture body 3, and is used by hooking the connecting spring 55A onto it. The spring receiver 37 includes a spring receiver fixing portion 37A and a spring receiver main portion 37B.

[0022] The spring receiver fixing portion 37A is attached to the bottom surface portion 34 of the appliance body. The spring receiver main portion 37B is a portion that protrudes downward from the bottom surface portion 34, and includes a hook portion 37D and a spring insertion hole 37C.

[0023] The hook portion 37D has a wide, flat hook shape, and can hook a connecting spring 55A (described later) when the light source unit is in a locked state (described later). The spring insertion hole 37C is a substantially rectangular hole, and the connecting spring 55A is inserted through it when the light source unit is in an attached state (described later). The spring holder 37 is usually formed by punching, bending, or the like, a metal plate.

[0024] <1.2.2. Light source unit> Fig. 3(a) is a side view of the lighting device 1. Fig. 3(b) is an AA cross-sectional view of the lighting device 1. As shown in Fig. 3(b), the cover portion 54 includes a light-emitting cover portion 54A, a support cover portion 54B, and a cover hollow portion 54C. The light source substrate 51 is disposed in the cover hollow portion 54C.

[0025] <1.2.2.1. Light source board> The light source board 51 is a part that emits light and includes a light source 53 and a printed circuit board 52. The printed circuit board 52 includes printed wiring 52P and solder connection portions 52S. On the surface of the long printed circuit board 52, a plurality of light sources 53 made of surface-mounted LEDs (Light Emitting Diodes) are arranged in a row at intervals in the longitudinal direction.

[0026] <1.2.2.2. Cover part 54> The cover portion 54 is a member having a hollow structure, and includes a light-emitting cover portion 54A provided on the front side of the light source 53 and a support cover portion 54B provided on the rear side of the light source substrate 51.

[0027] The light-emitting cover portion 54A is translucent and has a light-diffusing material dispersed therein as appropriate. The support cover portion 54B is white so as to have almost no translucency, but may be colored gray, black, or another color by using a resin with high thermal conductivity.

[0028] The light emitting cover portion 54A and the support cover portion 54B are integrally molded by two-color molding, typically extrusion molding. The cover portion 54 is made of resin, preferably polycarbonate or acrylic.

[0029] <1.2.2.2.1. Light-emitting cover portion 54A> The light exit cover portion 54A has flat sides and a front surface, and has the function of transmitting and appropriately diffusing the light emitted from the light source 53. Note that the light exit cover portion 54A may be made transparent to reduce the diffusivity.

[0030] <1.2.2.2.2. Support Cover Portion 54B> The support cover portion 54B is a portion that abuts against the lower end of the housing 31 when attached to the fixture main body 3. The support cover portion 54B is the portion shown by diagonal lines in FIG. 3(b), and includes a board mounting portion 541, a storage portion 545, a rear component installation portion 546, a side portion 547, and a fastener insertion portion 549. The support cover portion 54B is formed so that components such as the light source board 51, the power supply 56, the connecting spring portion 55, and the wiring 58 can be arranged thereon.

[0031] 3(b), the board mounting portion 541 is a portion where the light source board 51 is mounted, and includes a flat portion 541P, a side portion 541S, and a support portion 541H. The rear surface of the light source board 51 is disposed in contact with the flat portion 541P, and its movement in the short direction is restricted by the side portion 541S, and its movement in the downward direction is restricted by the support portion 541H, so that it does not need to be fixed with a separate part such as a screw. The side portion 541S is a portion that is accommodated in the accommodation recess 32 adjacent to the long side surface portion 35 when the light source unit 5 is attached to the fixture body 3.

[0032] One surface of the substrate mounting portion 541 is inside the cover hollow portion 54C, and the majority of the other surface is exposed to the outside of the cover hollow portion 54C. Therefore, heat generated by the light source substrate 51 is easily discharged to the outside through the flat portion 541P. Therefore, the substrate mounting portion 541 is preferably made of a resin with higher thermal conductivity than the light-emitting cover portion 54A.

[0033] 5(a) and 5(b), the light source substrate 51 is arranged so that the back surface of the light source substrate 51 is in contact with the flat portion 541P. The light source substrate 51 is arranged by being inserted along the flat portion 541P from the long side direction of the support cover portion 54B.

[0034] 5(a), the light source driving wiring 58o from the power supply 56 passes through the housing portion 545 and is arranged on the surface of the light source substrate 51. The light source driving wiring 58o is welded to the solder connection portion 52S of the light source substrate 51 with an appropriate amount of solder.

[0035] Here, solder connection portion 52S and printed wiring 52P are live parts and therefore must be electrically insulated from the outer surface of lighting fixture 1. According to the embodiment of the present invention, as shown in Fig. 5(a), solder connection portion 52S and support portion 541H in particular are arranged close to each other, but because support portion 541H is made of resin, even if it comes close to or comes into contact with the live part of light source board 51, it is electrically insulated from the outer surface of lighting fixture 1 and no problem of poor insulation occurs.

[0036] As shown in FIG. 3(b), the accommodation section 545 is a space surrounded by the upper surface of the flat section 541P, the side section 547, the fastening material insertion section 549, and the upper surface of the rear component installation section 546, and has the function of accommodating the electrical wiring portions of the power input wiring section 58i, the power supply feed wiring section 58p, and the light source driving wiring 58o.

[0037] 3(b), when the light source unit 5 is attached to the fixture body 3, the side surface portion 547 is a portion that is accommodated in the accommodation recess 32 adjacent to the long side surface portion 35, and is a portion that extends continuously upward from the side portion 541S. The side surface portion 547 has three protrusions 54R1, 54R2, and 54R3 (hereinafter, may be collectively referred to as "protrusions 54R") that are arranged so as to contact the inside of the long side surface portion 35. The protrusions 54R are arranged linearly in the long side direction and have a substantially mountain-shaped cross section.

[0038] The fastening member insertion portion 549 is a groove formed in the longitudinal direction on the upper surface of the support cover portion 54B, and as shown in the cross-sectional view of FIG. 3(b), it is formed so that the lower portion is approximately circular and the width of the groove increases toward the upper surface. The approximately circular portion at the lower portion is used to attach the end cover 59 from the front with fastening member 59F. The upper groove is used to attach the rear component from above with fastening members 55F and 56F.

[0039] <1.2.2.2.3. End Cover> Fig. 4(a) is a front view of the light source unit, and Fig. 4(b) is a side view of the light source unit, showing the vicinity of one end.

[0040] 1(a) and 1(b) and 4(a) and 4(b), the end cover 59 is a plate-like member that tightly closes the openings at both ends in the long side direction of the cover portion 54. The end cover 59 is attached to the cover portion 54 by inserting fasteners such as screws into the mounting holes and fastening them to fastener insertion portions 549 of the support cover portion 54B. The end cover 59 is preferably made of a resin material that has the same light-transmitting properties as the light-emitting cover portion 54A. <1.2.2.2.4. Features of the cover (thermal expansion countermeasures)>

[0041] The cover portion 54 is made of resin and the light-emitting cover portion 54A and the support cover portion 54B are integrally molded, so that the light-emitting cover portion 54A and the support cover portion 54B have approximately the same coefficient of thermal expansion.

[0042] Here, if the cover portion 54 is made of different parts and materials, such as if the light-emitting cover portion 54A is made of resin and the support cover portion 54B is made of metal, the resin light-emitting cover portion 54A will have a higher expansion coefficient than the metal support cover portion 54B, resulting in a greater change in dimension in the long side direction. For this reason, when the ambient temperature is low, the dimension in the long side direction of the light-emitting cover portion 54A will become shorter, creating a gap between the support cover portion 54B and the end cover 59. Conversely, when the ambient temperature is high, the dimension in the long side direction of the light-emitting cover portion 54A will become longer, causing inconveniences such as the end cover 59 being pressed by the light-emitting cover portion 54A and deforming, or the light-emitting cover portion itself becoming distorted.

[0043] According to the embodiment of the present invention, the cover portion 54 is configured such that the light-emitting cover portion 54A and the support cover portion 54B are integrally molded from resin and have the same thermal expansion coefficient, so no inconvenience occurs due to dimensional changes in the cover portion 54.

[0044] <1.2.2.3. Power supply> The power supply 56 is a device that converts AC power into DC power for driving the light source 53, and as shown in Fig. 3(b), includes a main power supply part 561 and a power supply mounting part 562. The power supply 56 is installed in the rear component installation part 546, and by fastening a fastening member 56F to a fastening member insertion part 549 through a power supply mounting hole 562H provided in the power supply mounting part 562, the power supply 56 is attached near the center of the long side of the support cover part 54B.

[0045] The light source 53 is driven as follows. AC power is supplied in this order from the power line 98, the power input wiring section 58i, and the power supply 56. The AC power is converted into DC power by the power supply 56, and the DC power is supplied from the power supply 56 to the light source 53 via the light source drive wiring 58o.

[0046] AC power from the electric lighting line 98 is also supplied from the power input wiring section 58i to the power feed wiring section 58p, and when connecting and installing the lighting fixtures described below, the power feed wiring section 58p of lighting fixture 1 is connected to the power input wiring section of the other lighting fixtures for use.

[0047] As shown in Figure 3(b), most of the wiring 58 is neatly stored in the storage section 545 of the support cover section 54B, so that the wiring 58 does not get caught between the fixture body 3 and the light source unit 5 and get in the way when attaching the light source unit to the fixture body.

[0048] <1.2.2.4. Connecting spring part> 2(a), the connecting spring portion 55 is a light source unit side connecting component, and includes a connecting spring 55A, a spring holding portion 55B, and a fastening member 55F. The connecting spring portion 55 is attached to the upper surface of the support cover portion 54B, and connects the light source unit 5 to the fixture body 3 by engaging with the spring receiver 37 provided on the fixture body 3.

[0049] As an example, connecting spring 55A is a double torsion spring, and is formed by bending spring wire, etc. Connecting spring 55A includes spring tip portion 55Aa, frame portion 55Ab connected to the spring tip portion, coil spring portion 55Ac connected to the frame portion and bent into a coil shape, and hook portion 55Ad which is a rod-shaped portion connected to coil spring portion 55Ac and hooked to spring holding portion 55B.

[0050] The spring holding portion 55B is a member for holding the connecting spring 55A and for attaching it to the cover portion 54 of the light source unit. As shown in Fig. 2(a), the spring holding portion 55B is attached to the support cover portion 54B by inserting a fastening member 55F such as a screw into the spring holding portion attachment hole 55BH and fastening it to the fastening member insertion portion 549 of the support cover portion 54B.

[0051] The spring holder 55B is formed by bending a metal plate or the like. The spring holder 55B includes a plate portion 55Ba, a spring fixing portion 55Bb, a spring holder mounting hole 55BH through which a fastening member 55F passes, and an arch portion 55Bd. The plate portion 55Ba is a plate-shaped portion and is fixed by a fastening member 55F to the surface of the support cover portion 54B facing the surface on which the light source board 51 is attached. The spring fixing portion 55Bb is a flat plate-shaped portion on which the coil spring portion 55Ac of the connecting spring 55A is hooked. The arch portion 55Bd is a portion machined into an arch shape, and the hook portion 55Ad of the connecting spring 55A is inserted into and hooked to the arch.

[0052] <1.2.3. Attaching the light source unit to the fixture body> The light source unit 5 is attached to the fixture body 3 in the following procedure.

[0053] (1) The connecting springs 55A of the two connecting spring portions 55 on the light source unit 5 side are hooked onto the hook portions 37D of the spring receivers 37 on the fixture body 3 side. This state is referred to as the "light source unit locked state."

[0054] (2) With the light source unit locked, the electric light wire 98 exposed from the ceiling 9 is inserted into the power supply hole provided on the bottom surface. As shown in FIG. 1(b), the tip of the electric light wire 98 is connected to a connector of the power input wiring portion 38i.

[0055] (3) The light source unit 5 is pushed upward. This causes the connecting spring 55A to enter the spring insertion hole 37C of the spring receiver 37. The light source unit 5 is pulled up by the force of the spring, and the support cover portion 54B of the light source unit 5 is pressed against and comes into contact with the fixture body 3. This state is the lighting fixture 1 shown in FIG. 1(a), and is referred to as the "light source unit attached state." In the light source unit attached state, as shown in FIG. 3(b), the upper end of the support cover portion 54B, i.e., the upper end of the side surface portion 547, abuts against the lower end of the protrusion 35P, preventing the light source unit 5 from entering the fixture body 3 more than necessary.

[0056] <1.2.4. Features of Lighting Fixture 1> According to the embodiment of the present invention, in the state where the light source unit is attached, the long side surface portion 35 of the fixture body 3 and the support cover portion 54B of the light source unit 5 are attached so as to fit together exactly, as shown in FIG. 3(b).

[0057] In particular, the protrusions 54R arranged on the side surface 547 of the support cover 54B are in close contact with the inside of the long side surface 35.

[0058] The support cover portion 54B is made of resin and has elasticity, and when in contact with the long side side portion 35, a moderate elastic force is applied that presses it toward the long side side portion 35. At this time, the weight of the light source unit 5 applies a downward force, particularly near the center of the light source unit 5, but the elastic force of the side portion 547 of the support cover portion 54B presses the side portion 547 against the long side side portion 35, and an upward frictional force, which is in the opposite direction to the force due to the weight, is applied to the contact surface between the long side side portion 35 and the protruding portion 54R.

[0059] The protrusion 54R is generally mountain-shaped, and the top of the mountain-shape comes into contact with the long side surface portion 35, so the contact area is smaller than if the entire side surface of the side surface portion 547 were in contact. Because the contact area is small, a sufficient frictional force can be obtained even with the elastic force of a general resin. In the above-described manner, the light source unit is held without being deflected by its own weight.

[0060] Furthermore, if the light source unit is lightweight, the fixture body and the light source unit can be integrated without the fixture body side connecting parts and the light source unit connecting parts. <1.2.5. Connecting lighting fixtures>

[0061] When connecting lighting fixtures 1 in the long side direction, the connector of power supply feed wiring section 58p is connected to the connector of power supply input wiring section 58i of the other connected lighting fixture to supply AC power to the power supply 56 of the other connected lighting fixture. A knockout hole (not shown) is provided in end cover 59, and when connecting lighting fixtures, the knockout hole can be pushed out with a screwdriver or the like to pass power supply feed wiring section 58p through.

[0062] <2. Modifications> Although the embodiments of the lighting fixture according to the present invention have been described above, the description of the above embodiments should be considered to be illustrative in all respects and not restrictive. The scope of the present invention is defined not by the above-described embodiments but by the claims. Furthermore, the scope of the present invention is intended to include all modifications that are equivalent to the meaning and scope of the claims. The lighting fixtures exemplified can also be modified as follows, and it goes without saying that the present invention is not limited to the lighting fixtures shown in the above-described embodiments.

[0063] (1) In the above-described embodiment, the protrusions are formed in a continuous straight line along the longitudinal direction, but it is sufficient if there is a protrusion in the center, and intermittent straight or curved protrusions may also be formed in the center.

[0064] (2) In the above-described embodiment, the protrusions are integrally formed with the side surface, but it is sufficient if the protrusions are provided on the outer side of the side surface. As an example, the protrusions may be formed on a rubber sheet member having a greater elasticity than the side surface and attached to the outer side of the side surface. Attachment methods include gluing, and also providing concave and convex portions on the side surface and the rubber sheet member so that they fit together.

[0065] (3) In the above-described embodiment, an LED is used as the light source, but this is not limiting and other light sources may be used, such as organic electroluminescence (EL) or organic light-emitting diode (LED), field emission display, etc.

[0066] (4) The above-described embodiments and modifications may be partially combined.

[0067] <3. Extraction of inventions> The configuration of a lighting fixture as one embodiment of the present invention, as well as modifications and effects thereof, will be further described below.

[0068] (1) A lighting fixture according to one embodiment of the present invention is an elongated lighting fixture comprising a long fixture body and a long light source unit, wherein the fixture body comprises a gutter-shaped storage recess formed by a bottom surface and a pair of long side surface portions, the light source unit comprising a light source substrate and a cover portion, the cover portion being made of resin and having a hollow structure in which a light emitting cover portion that emits light emitted from the light source substrate and a support cover portion that supports the light source substrate are integrally molded, the support cover portion comprising a side surface portion that is accommodated in the storage recess, the side surface portion having elastic protrusions facing outward, and when the side surface portion is accommodated in the storage recess, the protrusions are pressed against the inside of the long side surface portion.

[0069] According to this configuration, it is possible to provide a lighting fixture that prevents bending of the elongated light source unit due to its own weight when the light source unit is attached to the fixture body.

[0070] (2) The protruding portion may be disposed near the center of the long side surface portion in the long side direction.

[0071] According to this configuration, it is possible to provide a lighting fixture that prevents the central portion of the light source unit from bending due to its own weight when the long light source unit is attached to the fixture body.

[0072] (3) The protruding portion may be formed linearly in the long side direction of the long side surface portion.

[0073] According to this configuration, when the long light source unit is attached to the fixture body, the light source unit is prevented from bending due to its own weight, and a lighting fixture can be provided in which the cover portion can be formed relatively easily.

[0074] (4) The fixture body may include a fixture body side connecting part, and the light source unit may include a light source unit side connecting part, and the fixture body and the light source unit may be integrated by connecting the fixture body side connecting part and the light source unit side connecting part.

[0075] With this configuration, when a long light source unit is attached to the fixture body, it is possible to provide a lighting fixture in which the fixture body and the light source unit are integrated by connecting parts while preventing the light source unit from bending due to its own weight.

[0076] (5) The light source unit may have an end cover at the end of the long side and wiring for supplying power to the light source, the support cover portion may have a fastening material insertion portion and a storage portion, the support cover portion may be capable of fixing the light source unit side connecting part and the end cover by inserting fastening material into the fastening material insertion portion, and the storage portion may be capable of storing the wiring.

[0077] This configuration prevents bending of the long light source unit due to its own weight when it is attached to the fixture body, and furthermore, allows the end cover and the light source unit side connecting parts to be easily fixed to the light source unit, providing a lighting fixture in which wiring does not get in the way. [Explanation of symbols]

[0078] 1. Lighting equipment 3. Instrument body 31 Case 32 Recessed storage area 34 Bottom part 34HC fixture mounting hole 34HP power hole 35, 36 Long side part 35P, 36P protrusion 37 Spring holder 37A Spring holder fixing part 37B Spring bearing main part 37C Spring insertion hole 37D hook part 39 End cap 5 Light source unit 51 Light source board 52 Printed Circuit Board 52P printed wiring 52S solder joint 53 Light source 54 Cover part 54A Light output cover 54B Support cover part 54C Cover hollow 541 PCB mounting part 541P flat part 541S side 541H Support part 545 Storage unit 546 Rear component installation section 547 Side part 54R, 54R1, 54R2, 54R3 protrusion 549 Fastener insertion part 55F, 56F, 59F fasteners 55 Connecting spring part 55A connecting spring 55Aa Spring tip 55Ab frame part 55Ac Coil spring part 55Ad Latch part 55B spring retainer 55Ba plate part 55Bb spring fixing part 55BH Spring retainer mounting hole 55Bd Arch 55D Spring protection part 56 Power supply 561 Main power supply 562 Power supply mounting part 562H Power supply mounting hole 58 Wiring 58i Power input wiring section 58p Power supply wiring section 58o Light source driving wiring 59 End cover 9. Ceiling 98 Electric Light Line

Claims

1. A long lighting fixture including a long fixture body and a long light source unit, The device body has a trough-shaped storage recess formed by a bottom surface portion and a pair of long side surface portions, The light source unit includes a light source substrate and a cover portion, the cover portion is made of resin and has a hollow structure in which a light-emitting cover portion that emits light emitted from the light source substrate and a support cover portion that supports the light source substrate are integrally molded, the support cover portion includes a side surface portion that is accommodated in the accommodation recess, The side surface portion has an elastic protrusion facing outward, When the side surface portion is accommodated in the accommodation recess, the protrusion is pressed against the inside of the long side surface portion. Lighting fixtures.

2. The protruding portion is disposed near the center of the long side surface portion in the long side direction.

2. The lighting fixture of claim 1.

3. The protruding portion is formed linearly in the long side direction of the long side surface portion.

2. The lighting fixture of claim 1.

4. The instrument body includes an instrument body side connecting component, the light source unit includes a light source unit side connecting component, The fixture body and the light source unit are integrated by connecting the fixture body side connecting part and the light source unit side connecting part.

2. The lighting fixture of claim 1.

5. the light source unit includes an end cover at an end in a long side direction, a power source and wiring for supplying power to the light source, The support cover portion includes a fastener insertion portion and a receiving portion, the support cover portion can fix the power supply and the end cover by inserting fastening material into the fastening material insertion portion, The housing portion is capable of housing the wiring.

2. The lighting fixture of claim 1.

Images