Lighting fixtures

Abstract

To provide a lighting fixture capable of suppressing breakage of a light source unit and a socket caused by stress being added to a light emitting part.SOLUTION: A lighting fixture 10 includes: a fixture body 100 having a bottom surface part 111; a socket 140 arranged at the bottom surface part 111; and a light source unit 200 having a power source part 200a mounted detachably on the socket 140, a light emitting part 200b for surrounding the power source part 200a in a plan view in a state where the power source part 200a is mounted on the socket 140, and a connection part 200c for connecting the power source part 200a and the light emitting part 200b. Then, the light emitting part 200b is arranged being separated from the fixture body 100 via the connection part 200c. The lighting fixture 100 further includes a rib 130 which is the rib 130 for surrounding the side surface on the outer peripheral side of the light emitting part 200b, and in which at least one of height and a gap with the side surface is formed on a rear surface of the light emitting part 200b so that a person's finger does not hit it.SELECTED DRAWING: Figure 2

Description

[Technical field]

[0001] The present invention relates to a lighting fixture. [Background technology]

[0002] Conventionally, there is known a light source unit using a so-called GX53 type base equipped with a pair of electrode pins. This light source unit realizes support and electrical connection of the light source unit to the socket at the same time by inserting the electrode pin into the socket of the fixture body attached to the construction material or the like.

[0003] The light source unit includes a lighting circuit (power supply circuit) for power supply and a light source (light source unit) that emits light using power from the lighting circuit. Patent Document 1 discloses a light source unit in which the lighting circuit and the light source are arranged separately. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] JP 2016-048687 A Summary of the Invention [Problem to be solved by the invention]

[0005] However, when the light source unit described in Patent Document 1 is attached to the fixture body, if stress is applied to the light source (light-emitting portion), there is a risk that the light source unit and the socket will be damaged.

[0006] Therefore, an object of the present invention is to provide a lighting fixture that can prevent damage to the light source unit and socket caused by stress being applied to the light-emitting portion. [Means for solving the problem]

[0007] In addition, in order to achieve the above-mentioned object, a lighting fixture according to one embodiment of the present invention comprises a fixture body having a bottom portion, a socket arranged on the bottom portion, a power supply unit that can be attached and detached to the socket, a light source unit having a light-emitting portion that surrounds the power supply unit in a planar view with the power supply unit attached to the socket, and a connection portion that connects the power supply unit and the light-emitting portion, wherein the light-emitting portion is arranged at a distance from the fixture body via the connection portion, and the fixture body further has a rib that surrounds the side surface on the outer periphery of the light-emitting portion, and at least one of the heights and the gap with the side surface is formed so that a person's fingers do not come into contact with the back surface of the light-emitting portion. Effect of the Invention

[0008] According to the lighting fixture according to one aspect of the present invention, damage to the light source unit and the socket caused by stress being applied to the light-emitting portion can be suppressed. [Brief description of the drawings]

[0009] [Figure 1A] 1 is a perspective view showing the appearance of a lighting fixture according to a first embodiment. [Figure 1B] 1 is a perspective view showing the external appearance of a lighting fixture in accordance with Embodiment 1 with a fixture cover removed. FIG. [Diagram 2] 1 is an exploded perspective view showing a configuration of a lighting fixture according to a first embodiment. [Diagram 3] FIG. 2 is a plan view showing the appearance of the device main body according to the first embodiment. [Figure 4] 4 is a cross-sectional view of the lighting device according to the first embodiment taken along line IV-IV in FIG. 3. [Figure 5A] 4 is a partially enlarged cross-sectional view showing an example of a first rib and a second rib formed on the device body according to the first embodiment. FIG. [Figure 5B] 10 is a partially enlarged cross-sectional view showing another example of a first rib formed on the device body according to embodiment 1. FIG. [Figure 5C] 13 is a partially enlarged cross-sectional view showing still another example of a first rib formed on the device body according to embodiment 1. FIG. [Figure 6] 11 is a cross-sectional view of a lighting fixture according to a second embodiment when mounted on a wall. FIG. [Figure 7] FIG. 11 is a partially enlarged cross-sectional view for explaining the position of a step portion according to the second embodiment. [Figure 8] 13 is a diagram showing the flow of water droplets when they fall on a second rib in accordance with the second embodiment when the device is attached to a wall. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] In the following, a lighting device according to an embodiment of the present invention will be described in detail with reference to the drawings. Note that the embodiments described below are all comprehensive or specific examples. Therefore, the numerical values, shapes, materials, components, arrangement positions and connection forms of the components shown in the following embodiments are merely examples and are not intended to limit the present invention.

[0011] In addition, each drawing is a schematic diagram and is not necessarily a precise illustration, and therefore, for example, the scale of each drawing does not necessarily match.

[0012] Coordinate axes may be shown in the drawings used in the explanation of the following embodiments. The negative side of the Z axis represents the installation surface side (e.g., the ceiling side), and the positive side of the Z axis represents the opposite side to the installation surface, e.g., the irradiation surface side. The X-axis direction and the Y-axis direction are directions perpendicular to each other on a plane perpendicular to the Z-axis direction. The XY plane is, for example, a plane parallel to the construction material on which the device body is installed. For example, in the following embodiments, "planar view" means viewing from the Z-axis direction.

[0013] Furthermore, in this specification, terms indicating the relationship between elements, such as "parallel," terms indicating the shape of elements, such as "annular" or "arch-shaped," as well as numerical values ​​and numerical ranges, are not expressions that only express a strict meaning, but are expressions that include a substantially equivalent range, for example, a difference of about a few percent.

[0014] (Embodiment 1) Illumination device 10 according to the present embodiment will now be described with reference to FIGS. 1A to 5C.

[0015] [1-1. Lighting fixture configuration] Fig. 1A is a perspective view showing the appearance of lighting fixture 10 according to the present embodiment. Fig. 1B is a perspective view showing the appearance of lighting fixture 10 according to the present embodiment with fixture cover 300 removed. Fig. 2 is an exploded perspective view showing the configuration of lighting fixture 10 according to the present embodiment. Fig. 3 is a plan view showing the appearance of fixture body 100 according to the present embodiment. Fig. 4 is a cross-sectional view of lighting fixture 10 according to the present embodiment taken along line III-III in Fig. 3. Fig. 4 also shows light source unit 200 attached to socket 140.

[0016] 1A to 2, lighting fixture 10 according to the present embodiment includes a fixture body 100, a socket 140, a socket base 150, a light source unit 200, and a fixture cover 300 (e.g., a globe). Lighting fixture 10 is installed on an installation surface (e.g., a ceiling 500) of a building material or the like. Lighting fixture 10 is installed in a place exposed to the external environment, such as ceiling 500 of a common passageway of an apartment building.

[0017] The fixture body 100 is a main body that is installed on an installation surface and to which the light source unit 200 is detachably attached. The fixture body 100 is electrically connected to a commercial power source (not shown) via wiring (not shown).

[0018] As shown in Figures 2 and 3, the appliance body 100 has a main body portion 110 having a bottom surface portion 111 and an annular side wall portion 112 formed protruding from the outer periphery of the bottom surface portion 111, a first rib 120, and a second rib 130.

[0019] The bottom surface portion 111 is, for example, a plate-like member attached to an installation surface. A socket 140 and a socket base 150, which will be described below, are arranged on the bottom surface portion 111. An appliance cover 300 is attached to the side wall portion 112. In this embodiment, the bottom surface portion 111 has a circular shape in a plan view, and the side wall portion 112 has an annular shape in a plan view, but the planar shapes of the bottom surface portion 111 and the side wall portion 112 are not limited to this.

[0020] The first rib 120 is disposed between the bottom surface portion 111 and the light-emitting portion 200b, and is a protrusion that protrudes toward the light-emitting portion 200b. The first rib 120 is, for example, a columnar protrusion that protrudes from the bottom surface portion 111 toward the light-emitting portion 200b. For example, a plurality of first ribs 120 may be disposed. Specifically, a plurality of first ribs 120 may be disposed along the shape of the light-emitting portion 200b in a plan view. For example, three or more first ribs 120 are disposed. For example, three or more first ribs 120 are disposed at equal intervals along the outer circumferential direction of the light-emitting portion 200b.

[0021] In the present embodiment, since the shape of the light-emitting section 200b in a plan view is annular, a plurality of first ribs 120 are arranged along the annular shape. Moreover, the first ribs 120 are arranged at positions overlapping with the light-emitting section 200b in a plan view.

[0022] As shown in FIG. 4, the light-emitting part 200b is disposed apart from the fixture body 100 (for example, the bottom surface part 111). In other words, a gap is formed between the light-emitting part 200b and the fixture body 100 (for example, the bottom surface part 111). Therefore, when stress is applied to the light-emitting part 200b toward the bottom surface part 111 side (Z-axis negative side) in a state where the light source unit 200 is attached to the fixture body 100, the socket 140 and the power supply part 200a (hereinafter also referred to as a charging part), the light-emitting part 200b, etc. may be damaged. Therefore, in order to support the light-emitting part 200b, that is, to suppress deformation of the light-emitting part 200b toward the bottom surface part 111 side, the above-mentioned first rib 120 is provided.

[0023] The height H1 (length in the Z-axis direction) of the first rib 120 is, for example, smaller than the distance between the bottom surface portion 111 and the light-emitting portion 200b. In addition, the height H1 of the first rib 120 is, for example, smaller than the height H2 (length in the Z-axis direction) of the second rib 130.

[0024] The shape of the first rib 120 is not limited to the above. For example, the first rib 120 may be provided in a ring shape along the shape of the light emitting portion 200b in a plan view.

[0025] 1B and 2, the second rib 130 is an annular protrusion surrounding the side surface 200b1 on the outer periphery side of the light-emitting part 200b when the light source unit 200 is detachably attached to the fixture body 100. In the present embodiment, the second rib 130 is an annular protrusion, but is not limited thereto. In addition, the second rib 130 is formed such that at least one of the height H2 (see FIG. 4) and the width W2 (see FIG. 5A) of the gap S2 between the second rib 130 and the side surface 200b1 of the light-emitting part 200b does not come into contact with the back surface 200b2 (surface on the bottom surface part 111 side) of the light-emitting part 200b.

[0026] As shown in FIG. 4, the light emitting part 200b is disposed apart from the fixture body 100 (for example, the bottom surface part 111). In other words, a gap is formed between the light emitting part 200b and the fixture body 100 (for example, the bottom surface part 111). That is, if the second rib 130 is not provided, the user can touch the back surface 200b2 of the light emitting part 200b. When the light source unit 200 is attached to the fixture body 100, if the user touches the back surface 200b2 of the light emitting part 200b, stress is applied to the light emitting part 200b on the side opposite to the bottom surface part 111 (the irradiation surface side, the Z-axis positive side), which may damage the charging part and the like. Therefore, in order to prevent the user from touching the back surface 200b2 of the light emitting part 200b, the second rib 130 is provided.

[0027] As shown in FIG. 1B, FIG. 2, and FIG. 4, in this embodiment, the second rib 130 has a first rib portion 131, a second rib portion 132, and a step portion 133. The first rib portion 131 is a portion of the second rib 130 located on the bottom surface portion 111 side and on the light emitting portion 200b side of the light emitting portion 200b. The second rib portion 132 is a portion of the second rib 130 located on the bottom surface portion 111 side from the first rib portion 131. In this embodiment, each of the first rib portion 131 and the second rib portion 132 is provided in an annular shape (for example, a circular ring shape). The step portion 133 is formed on the outer circumferential surface 130a at the boundary between the first rib portion 131 and the second rib portion 132, and extends along the shape of the second rib 130 in a plan view. The step portion 133 is a step where the outer circumferential surface 130a of the second rib portion 132 is recessed toward the light-emitting portion 200b side from the outer circumferential surface 130a of the first rib portion 131. Moreover, each of the outer circumferential surfaces 130a of the first rib portion 131 and the second rib portion 132 is, for example, a flat surface.

[0028] Moreover, the height H2 of the second rib 130 is greater than, for example, the distance between the bottom surface portion 111 and the light emitting portion 200b. The height H21 of the first rib portion 131 is greater than the height H22 of the second rib portion 132.

[0029] 2, in this embodiment, the inner peripheral surface 130b of the second rib 130 is flush. In other words, the second rib portion 132 is a rib that is thinner (length in the radial direction) than the first rib portion 131.

[0030] The second rib 130 is not limited to having the step portion 133. In other words, the step portion 133 may not be formed on the outer peripheral surface 130a of the second rib 130. For example, the first rib portion 131 and the second rib portion 132 may be formed to have the same thickness (radial length) and to be flush with each other. For example, the second rib 130 may be formed to have a gradually thinner thickness from the bottom surface portion 111 side toward the light emitting portion 200b side. For example, the second rib 130 does not have a convex step on the outer peripheral surface 130a when moving from the bottom surface portion 111 side toward the light emitting portion 200b side (from the negative Z-axis side to the positive Z-axis side).

[0031] 3, the second rib 130 has a apex 131a having a pointed shape in a plan view. Specifically, the first rib portion 131 has the apex 131a. The first rib portion 131 has an annular shape (for example, annular) in a plan view, and the apex 131a is formed in a part of the annular shape. Note that the apex 131a is not limited to being pointed at the top (the part on the positive side of the Y axis), and may be an arc shape with a curvature larger than the curvature of the part where the apex 131a is not formed.

[0032] The apex 131a is provided, for example, at one location on the first rib portion 131. The apex 131a is provided to extend along the Z-axis on the first rib portion 131. The apex 131a may be formed across the second rib portion 132.

[0033] In addition, in a plan view, a water draining portion 130c is formed on the opposite side of the position where the apex 131a is formed in the second rib 130. For example, in a plan view, the apex 131a, the center of the second rib 130, and the water draining portion 130c are arranged in this order on a straight line. In the example of FIG. 3, the water draining portion 130c is a notch formed in the second rib 130. For example, the notch may be large enough to prevent the user from touching the back surface 200b2 of the light-emitting portion 200b. In addition, the water draining portion 130c is not limited to being a notch, and may be, for example, a through hole.

[0034] Furthermore, main body 110 may be formed with drain outlet 113 (drain hole) for discharging water inside lighting fixture 10 to the outside.

[0035] Although an example in which the main body portion 110 has both the first rib 120 and the second rib 130 will be described, it is sufficient for the main body portion 110 to have at least one of the first rib 120 and the second rib 130.

[0036] The main body 110 is made of, for example, a resin material or a metal material. The main body 110 may be, for example, a resin molded product. In this case, the bottom surface portion 111, the side wall portion 112, the first rib 120, and the second rib 130 are integrally formed.

[0037] 2 and 3, the socket 140 fixes the light source unit 200 and supplies power for the light source unit 200 to emit light. The socket 140 is fixed and disposed on the bottom surface portion 111. An opening 141 is formed in the socket 140, and the light source unit 200 is attached to the socket 140 by rotating the light source unit 200 relative to the socket 140 with an electrode pin (not shown) of the light source unit 200 inserted into the opening 141. In other words, the light source unit 200 is attached to the fixture body 100.

[0038] The socket stand 150 is a plate-like member disposed between the bottom surface portion 111 and the socket 140, to which the socket 140 is attached. As shown in Fig. 4, in this embodiment, the socket stand 150 is provided so that at least a portion of the socket stand 150 overlaps with the light-emitting unit 200b in a plan view. The socket stand 150 is fixed to the bottom surface portion 111.

[0039] 1B and 2, the light source unit 200 emits light upon receiving power from the socket 140. The light source unit 200 is detachably attached to the socket 140. The light source unit 200 has a power supply unit 200a detachably attached to the socket 140, a light emitting unit 200b, and a connecting unit 200c that connects the power supply unit 200a and the light emitting unit 200b.

[0040] 4, the power supply section 200a includes a power supply unit 211, a base 212, a circuit cover 213 on which the power supply unit 211 and the base 212 are arranged, a first main body section 210 on which the circuit cover 213 is arranged, and a light-transmitting first cover section 220 that covers the first main body section 210. For example, the circuit cover 213 is detachably attached to the first main body section 210. The first cover section 220 is attached to the first main body section 210.

[0041] The first main body 210 has, for example, an electrode pin for receiving power, which is provided protruding from the base 212 and receives power from the fixture body 100 for making the light source unit 200 emit light. The base 212 is, for example, a GX53-type or E-type base, but is not limited thereto. The power supply unit 211 has a circuit for generating power for making the light source unit 200 emit light. The circuit converts AC power supplied from the above-mentioned commercial power source via wiring into DC power. The DC power generated by the power supply unit 211 is supplied to the light-emitting module 231 of the light-emitting unit 200b, causing the light-emitting unit 200b to emit light.

[0042] The light-emitting unit 200b is a light source of the light source unit 200. The light-emitting unit 200b is provided so as to surround the power supply unit 200a in a plan view in a state in which the power supply unit 200a is attached to the socket 140 (in other words, in a state in which the light source unit 200 is attached to the fixture body 100). The light-emitting unit 200b has a light-emitting module 231, a second main body unit 230 in which the light-emitting module 231 is disposed, and a translucent second cover unit 240 that covers the light-emitting module 231 and is attached to the second main body unit 230.

[0043] The second main body portion 230 and the second cover portion 240 are formed, for example, in an annular shape. In this embodiment, the second main body portion 230 and the second cover portion 240 are formed in an annular shape.

[0044] The light emitting module 231 is, for example, a light source for emitting white light. The white light is, for example, light having a color temperature (correlated color temperature) of 2600K to 7100K. The light emitting module 231 has a substrate 232 and a plurality of light emitting elements 233 mounted on the substrate 232. The substrate 232 is a printed wiring board for mounting the plurality of light emitting elements 233. In this embodiment, a plurality of arch-shaped substrates 232 are arranged in a ring shape.

[0045] Furthermore, for example, the light-emitting section 200b is disposed closer to the bottom surface 111 (the negative side of the Z axis, the installation surface side) than the power supply section 200a in a state in which the light source unit 200 is attached to the fixture body 100. Note that, "the light-emitting section 200b is disposed closer to the bottom surface 111 than the light-emitting section 200b" means that at least a part of the light-emitting section 200b is disposed closer to the bottom surface 111 than the light-emitting section 200b in the cross section shown in FIG.

[0046] The light source of the lighting fixture 10 is not particularly limited. For example, instead of the above-mentioned light emitting module, a light emitting module configured using a semiconductor light emitting element such as a semiconductor laser, an organic electroluminescence element (OLED), an inorganic electroluminescence element, or other solid-state light emitting element may be used. Also, although the light emitting module has been described as emitting white light as an example, the light emitting color is not limited thereto.

[0047] The connecting portion 200c has a first connecting portion 250 that connects the first main body portion 210 and the second main body portion 230, and a second connecting portion 260 (third cover portion) that connects the first cover portion 220 and the second cover portion 240.

[0048] Thus, in the light source unit 200, the light emitting section 200b is disposed on the outer periphery of the power source section 200a in a plan view. In addition, in this embodiment, an opening 200d is formed in the light source unit 200. In the light source unit 200 according to this embodiment, the power source section 200a and the light emitting section 200b are disposed apart from each other. Then, wiring for supplying power from the power source section 200a to the light emitting section 200b is disposed inside at least one of the connecting sections 200c. This makes it possible to suppress the heat generated by each of the power source section 200a and the light emitting section 200b from interfering with each other. For example, it is possible to suppress the circuit components in the power source section 200a from being destroyed by the power source section 200a being further heated by the heat from the light emitting section 200b.

[0049] The first body 210, the second body 230, and the first connecting portion 250 form the body 270 (light source body). The first cover 220, the second cover 240, and the second connecting portion 260 form the light source cover 280. The light source cover 280 may have a function of diffusing light emitted from the light emitting module 231. For example, a resin containing a light diffusing material (fine particles) such as silica or calcium carbonate, or a white pigment, is attached to the inner or outer surface of the light source cover 280 formed of transparent glass or resin, thereby forming a milky white light diffusing film on the light source cover 280. The light source cover 280 itself may be molded using a resin material in which a light diffusing material is dispersed. Each of the body 270 and the light source cover 280 is a resin molded product.

[0050] 1A and 2, the fixture cover 300 is made of a light-transmitting material and transmits light emitted from the light source unit 200. The fixture cover 300 is detachably attached to the fixture body 100 so as to cover the light source unit 200.

[0051] The fixture cover 300 may have a function of diffusing light emitted from the light source unit 200. For example, a resin containing a light diffusing material (fine particles) such as silica or calcium carbonate, or a white pigment is attached to the inner or outer surface of the fixture cover 300 formed of transparent glass or resin, thereby forming a milky white light diffusing film on the fixture cover 300. In addition, the fixture cover 300 itself may be molded using a resin material in which a light diffusing material is dispersed.

[0052] The appliance cover 300 and the side wall portion 112 have an attachment structure for detachably attaching the appliance cover 300 to the appliance body 100. For example, as the attachment structure, a male thread is formed on one of the appliance cover 300 and the side wall portion 112, and a female thread is formed on the other. The appliance cover 300 is attached to the appliance body 100 by screwing the male thread and the female thread together.

[0053] Here, the first rib 120 and the second rib 130 of the instrument body 100 will be further described with reference to Fig. 5A to Fig. 5C. Fig. 5A is a partially enlarged cross-sectional view showing an example of the first rib 120 and the second rib 130 formed on the instrument body 100 according to the present embodiment. Fig. 5A is a partially enlarged cross-sectional view enlarging the dashed line region R1 in Fig. 4.

[0054] As shown in FIG. 4 and FIG. 5A, the first rib 120 protrudes from the bottom surface portion 111 toward the light emitting portion 200b (toward the positive side in the Z-axis direction) and is integrally formed with the second rib 130. The first rib 120 is formed, for example, protruding from the inner peripheral surface 130b (see FIG. 2) of the second rib 130 toward the center (for example, the socket 140) in a plan view of the fixture body 100. The first rib 120 is a columnar (for example, rectangular columnar) protrusion. In addition, the upper surface 120a of the first rib 120 is, for example, a flat surface. This can increase the contact area with the back surface 200b2 of the light emitting portion 200b, thereby suppressing the stress from the light emitting portion 200b from being locally applied to the first rib 120.

[0055] The first rib 120 is provided with a gap S1 of width W1, for example, when the light source unit 200 is attached to the fixture body 100. The width W1 is the length of the gap S1 in the Z-axis direction. The maximum value of the width W1 is a distance that will not damage the charging unit or the like when the light-emitting unit 200b is deformed by stress when the light source unit 200 is attached to the fixture body 100. The minimum value of the width W1 is preferably a distance that will not physically interfere with the light-emitting unit 200b and the first rib 120 when the light source unit 200 is attached to the fixture body 100.

[0056] The width W1 may be a distance that does not cause physical interference between the light emitting portion 200b and the first rib 120, taking into consideration, for example, the dimensional tolerances and thermal expansion of the fixture body 100 and the light source unit 200. Here, "physically interfere" means that, in a state in which the light source unit 200 is attached to the fixture body 100, the first rib 120 applies a load (stress) to the light emitting portion 200b on the side opposite the bottom surface portion 111 (the positive side of the Z axis). The width W1 is, for example, 5 mm or less, and more preferably 3 mm or less.

[0057] Furthermore, the width W1 may be a distance such that a person's finger F (e.g., a finger pad) does not come into contact with the back surface 200b2 of the light-emitting unit 200b. For example, the finger F may be a test finger specified by the JIS (Japanese Industrial Standards) (e.g., JIS C0920) or the IEC (International Electrotechnical Commission) (e.g., IEC 60335-1). For example, the finger F may be a jointed test finger having a diameter of 12 mm and a length of 80 mm. This can prevent the finger F from coming into contact with the back surface 200b2 of the light-emitting unit 200b without providing the second rib 130.

[0058] In addition, when the light source unit 200 is attached to the fixture body 100, the first rib 120 and the rear surface 200b2 of the light emitting portion 200b may be in contact with each other at least partially.

[0059] The second rib 130 is provided with a gap S2 of width W2 between the side surface 200b1 of the light-emitting portion 200b when the light source unit 200 is attached to the fixture body 100. The gap S2 is, for example, an annular (for example, annular) gap in a plan view. The width W2 is the radial length of the gap S2. The maximum value of the width W2 is a distance such that the finger F does not hit the back surface 200b2 of the light-emitting portion 200b when the light source unit 200 is attached to the fixture body 100, that is, the finger F does not reach the back surface 200b2 of the light-emitting portion 200b. For example, the gap S2 is smaller than the finger F when viewed in a plan view. In addition, the minimum value of the width W1 may be a distance such that the light-emitting portion 200b and the second rib 130 do not physically interfere with each other when the light source unit 200 is attached to the fixture body 100. The width W2 may be a distance that does not cause physical interference between the light emitting portion 200b and the second rib 130, taking into consideration, for example, dimensional tolerances and thermal expansion of the fixture body 100 and the light source unit 200. Here, "physically interfere" means that a load (stress) is applied to the light emitting portion 200b by the second rib 130 when the light source unit 200 is attached to the fixture body 100. The width W2 is, for example, 1 cm or less, and more preferably 5 mm or less.

[0060] The second rib 130 may be provided, for example, so as to surround at least a part of the side surface 200b1 of the second main body portion 230 of the light-emitting unit 200b and the second cover portion 240. For example, the second rib 130 may be provided so that the position in the Z-axis direction of the tip portion 132a (the end portion of the second rib 130 opposite to the installation surface) of the second rib 130 is located between the back surface 200b2 and the boundary B between the second main body portion 230 and the second cover portion 240 in the cross section shown in FIG. 5A. In other words, the height H2 of the second rib 130 may be equal to or greater than the distance between the bottom surface portion 111 and the back surface 200b2 and equal to or less than the distance between the bottom surface portion 111 and the boundary B. For example, the second rib 130 may be formed to protrude to a position flush with the boundary B. This can suppress the finger F from hitting the back surface 200b2 while suppressing the decrease in the luminous flux loss of the light from the light-emitting unit 200b.

[0061] In addition, the height H2 of the second rib 130 may be high, for example, from the viewpoint of further suppressing the finger F from hitting the back surface 200b2. The second rib 130 may be provided, for example, so as to surround at least a part of the side surface 200b1 of the second main body portion 230 and the second cover portion 240 of the light emitting unit 200b. For example, the second rib 130 may be provided so that the position of the tip portion 132a of the second rib 130 in the Z axis direction is located on the opposite side to the bottom surface portion 111 from the boundary B in the cross section shown in FIG. 5A. In other words, the height H2 of the second rib 130 may be greater than the distance between the bottom surface portion 111 and the boundary B.

[0062] Furthermore, when the width W2 is narrow (eg, 3 mm or less), the height H2 of the second rib 130 may be smaller than the distance between the rear surface 200b2 and the bottom surface portion 111, provided that the finger F does not hit the rear surface 200b2.

[0063] Such second rib 130 also functions as a guide when attaching the light source unit 200 to the fixture body 100. Therefore, by providing the second rib 130, the workability when attaching the light source unit 200 is improved.

[0064] Furthermore, the step portion 133 may be formed on the outer circumferential surface 130a, for example, closer to the bottom surface portion 111 than the upper surface 120a of the first rib 120.

[0065] In the above, an example in which the first rib 120 and the second rib 130 are integrally formed has been described with reference to FIG. 5A, but the present invention is not limited to this example. The first rib 120 and the second rib 130 may be disposed apart from each other. The first rib 120 is not limited to being provided so as to protrude from the bottom surface portion 111. The first rib 120 may be in a position or shape that contacts at least a part of the back surface 200b2 of the light emitting portion 200b when stress is applied to the light emitting portion 200b toward the bottom surface portion 111 side (Z-axis negative side). Another example of the first rib 120 will be described with reference to FIG. 5B and FIG. 5C. FIG. 5B is a partially enlarged cross-sectional view showing another example of the first rib 120 formed in the instrument body 100 according to the present embodiment. FIG. 5C is a partially enlarged cross-sectional view showing yet another example of the first rib 120 formed in the instrument body 100 according to the present embodiment.

[0066] As shown in FIG. 5B, the first rib 120 may be provided so as to protrude from the socket base 150 toward the light-emitting unit 200b (toward the positive side of the Z axis). Also, as shown in FIG. 5C, the first rib 120 may be provided so as to protrude from the inner peripheral surface 130b of the second rib 130. In the case of FIG. 5C, the first rib 120 may be provided so as to protrude from the inner peripheral surface 130b of the second rib 130 toward the light-emitting unit 200b (toward the negative side of the X axis in the case of FIG. 5C) in a plan view. Also, the first rib 120 may be disposed apart from the second rib 130 and provided so as to protrude from the bottom surface portion 111 toward the light-emitting unit 200b (toward the positive side of the Z axis).

[0067] [1-2. Effects, etc.] As described above, the lighting fixture 10 according to this embodiment includes a fixture body 100 having a bottom surface portion 111, a socket 140 disposed on the bottom surface portion 111, and a light source unit 200 having a power supply unit 200a detachably attached to the socket 140, and a light-emitting unit 200b surrounding the power supply unit 200a in a plan view with the power supply unit 200a attached to the socket 140. The fixture body 100 further includes a first rib 120 disposed between the bottom surface portion 111 and the light-emitting unit 200b and protruding toward the light-emitting unit 200b.

[0068] As a result, when stress is applied to the light-emitting portion 200b from the bottom surface portion 111 side while the light source unit 200 is attached to the fixture body 100, the first rib 120 can support the light-emitting portion 200b. In other words, the first rib 120 can prevent the light source unit 200 from being deformed by the stress. Therefore, the lighting fixture 10 according to the present embodiment can prevent damage to the light source unit 200 and the socket 140 caused by stress being applied to the light-emitting portion 200b. For example, when attaching or replacing the light source unit 200, it is possible to prevent a load from being inadvertently applied to the light-emitting portion 200b of the light source unit 200, which can cause damage to the charging portion (the power supply portion 200a and the socket 140) and the light source unit 200.

[0069] The first rib 120 is provided so as to protrude from the bottom surface portion 111 towards the light emitting portion 200b.

[0070] This makes it possible to easily form the first rib 120 when the instrument body 100 is a resin molded product, for example.

[0071] The lighting device 10 further includes a socket base 150, on which the socket 140 is attached, between the socket 140 and the bottom surface portion 111, and at least a portion of the socket base 150 overlaps with the light-emitting portion 200b in a plan view. The first rib 120 is provided to protrude from the socket base 150 toward the light-emitting portion 200b.

[0072] As a result, first rib 120 provided on socket base 150 can prevent damage to light source unit 200 and the like. Also, height H1 of first rib 120 can be made smaller than when first rib 120 protrudes from bottom surface portion 111. In other words, the amount of material required to form first rib 120 can be reduced. Thus, lighting fixture 10 that can prevent damage to light source unit 200 can be realized at lower cost.

[0073] Moreover, the first ribs 120 are columnar projections, and three or more of them are provided along the light-emitting section 200b in plan view.

[0074] This allows the first rib 120 to be realized at a lower cost than when the first rib 120 is provided in a ring shape. Furthermore, by providing three or more first ribs 120, deformation of the light source unit 200 can be effectively suppressed.

[0075] The first rib 120 is an annular protrusion.

[0076] This makes it possible to suppress deformation of the light source unit 200 regardless of the position where the load is applied to the light-emitting portion 200b, and therefore damage to the light source unit 200 can be further suppressed.

[0077] The fixture body 100 further includes a second rib 130 surrounding the outer peripheral side surface 200b1 of the light-emitting part 200b, and at least one of the height H2 and the gap S2 between the second rib 130 and the side surface 200b1 is formed so that a person's (e.g., an operator's) finger F does not hit the back surface 200b2 (an example of the surface on the bottom surface portion 111 side) of the light-emitting part 200b.

[0078] This can prevent a person from touching the rear surface 200b2 of the light-emitting unit 200b. In other words, it can prevent a person from touching the rear surface 200b2 of the light-emitting unit 200b, which would cause stress to be applied to the light-emitting unit 200b on the side opposite to the bottom surface portion 111. This can further prevent damage to the light source unit 200 and the socket 140 caused by stress being applied to the light-emitting unit 200b. For example, when attaching or replacing the light source unit 200, it can further prevent a load from being inadvertently applied to the rear surface 200b2 of the light-emitting unit 200b, which would cause damage to the charging unit (the power supply unit 200a and the socket 140) and the light source unit 200.

[0079] The second rib 130 also functions as a guide when attaching the light source unit 200 to the fixture body 100.

[0080] Moreover, the width W2 of the gap S2 is smaller than the finger F in a plan view.

[0081] This makes it possible to prevent the finger F from hitting the rear surface 200b2 of the light-emitting unit 200b due to the gap S2. Moreover, by narrowing the gap S2 (reducing the width W2), the height H2 of the second rib 130 can be reduced.

[0082] Moreover, the width W2 of the gap S2 is 1 cm or less.

[0083] This can further prevent the finger F (for example, the pad of the finger) from hitting the rear surface 200b2 of the light-emitting unit 200b.

[0084] Moreover, finger F is a test finger specified by JIS.

[0085] This makes it possible to prevent a finger F of a certain size from hitting the rear surface 200b2 of the light-emitting unit 200b.

[0086] The light emitting unit 200b has a light emitting module 231, a second main body 230 (an example of a main body) in which the light emitting module 231 is arranged, and a light-transmitting second cover 240 (an example of a cover) that covers the light emitting module 231 and is attached to the second main body 230. The second rib 130 is provided to protrude to a position flush with a boundary B between the second main body 230 and the second cover 240.

[0087] This makes it possible to suppress loss of luminous flux of the light from the light-emitting unit 200b, while also preventing the finger F from hitting the rear surface 200b2 of the light-emitting unit 200b.

[0088] Furthermore, when the light source unit 200 is attached to the fixture body 100, the light emitting section 200b is disposed closer to the bottom section 111 than the power supply section 200a.

[0089] This allows light-emitting unit 200b to be disposed closer to the installation surface, thereby improving the lighting effect of lighting device 10. For example, light-emitting unit 200b can emit light with less unevenness in brightness.

[0090] Moreover, the device body 100 is a resin molded product.

[0091] This allows the device body 100 to be easily manufactured. For example, the first rib 120 and the second rib 130 do not have convex portions and grooves that would become undercuts. This allows the worker to easily remove the device body 100 from the mold.

[0092] As described above, the lighting fixture 10 according to this embodiment includes the fixture body 100 having the bottom surface portion 111, the socket 140 disposed on the bottom surface portion 111, the power source unit 200 having the power source unit 200a detachably attached to the socket 140, and the light source unit 200 having the light-emitting unit 200b surrounding the power source unit 200a in a plan view with the power source unit 200a attached to the socket 140. The fixture body 100 further includes the second rib 130 (an example of a rib) surrounding the side surface 200b1 on the outer periphery side of the light-emitting unit 200b, and at least one of the height H2 and the gap S2 with the side surface 200b1 is formed so that a person's finger F does not come into contact with the back surface 200b2 (an example of the surface on the bottom surface portion 111 side) of the light-emitting unit 200b.

[0093] This can prevent a person from touching the rear surface 200b2 of the light-emitting unit 200b. In other words, it can prevent a person from touching the rear surface 200b2 of the light-emitting unit 200b, which would cause stress to be applied to the light-emitting unit 200b on the side opposite to the bottom surface portion 111. This can prevent damage to the light source unit 200 and the socket 140 caused by stress being applied to the light-emitting unit 200b. For example, when attaching or replacing the light source unit 200, it can prevent a load from being inadvertently applied to the rear surface 200b2 of the light-emitting unit 200b, which would cause damage to the charging unit (the power supply unit 200a and the socket 140) and the light source unit 200.

[0094] The second rib 130 also functions as a guide when attaching the light source unit 200 to the fixture body 100.

[0095] (Embodiment 2) [2-1. Lighting fixture configuration] A lighting fixture according to the present embodiment will be described below with reference to Figs. 6 to 8. The lighting fixture according to the present embodiment is used by being attached to, for example, a wall. The lighting fixture according to the present embodiment may be lighting fixture 10 according to embodiment 1. The following describes a case where lighting fixture 10 according to embodiment 1 is attached to a wall. The following mainly describes the differences from lighting fixture 10 of embodiment 1.

[0096] Fig. 6 is a cross-sectional view of lighting fixture 10 according to this embodiment when attached to a wall 600. Fig. 7 is a partially enlarged cross-sectional view for explaining the position of step portion 133 according to this embodiment. Fig. 7 is a partially enlarged cross-sectional view enlarging dashed line area R2 in Fig. 6. Fig. 7 shows a case where a gap S3 is formed between fixture body 100 and fixture cover 300 due to improper attachment (e.g., insufficient screwing) between fixture body 100 and fixture cover 300. In Figs. 6 and 7, the positive side of the Y axis is the vertical upper side, and the negative side of the Y axis is the vertical lower side.

[0097] 6, lighting fixture 10 according to the present embodiment is installed on an installation surface (e.g., wall 600) of a building material or the like. Lighting fixture 10 is installed in a place exposed to the external environment, such as wall 600 of a common passageway of an apartment building.

[0098] As shown in Figs. 6 and 7, the lighting fixture 10 includes a fixture body 100, a socket 140, a socket base 150, a light source unit 200, and a fixture cover 300 (e.g., a globe) as in the first embodiment. The lighting fixture 10 according to the present embodiment further includes a packing 400 at the joint between the fixture body 100 and the fixture cover 300 to prevent water from entering from the outside. The packing 400 is provided, for example, in an annular shape. Although Figs. 6 and 7 show an example in which the fixture body 100 includes both the first rib 120 and the second rib 130, the fixture body 100 according to the present embodiment only needs to include at least the second rib 130. The second rib 130 is formed with a step portion 133.

[0099] As shown in FIG. 7, when the attachment between the appliance body 100 and the appliance cover 300 is poor, water droplets D may fall onto the second rib 130 through the gap S3. In this case, the second rib 130 functions as a wall that protects the charging unit (the power supply unit 200a and the socket 140) from the water droplets D. In this case, the second rib 130 is formed so as to satisfy at least one of a shape and a position that prevents the water droplets D from falling onto the charging unit from the viewpoint of protecting the charging unit. The second rib 130 is provided so as to overlap with the charging unit when viewed from the vertically upper side to the vertically lower side (for example, from the Y-axis positive side to the Y-axis negative side). In addition, the second rib 130 may be provided, for example, between the end 300a on the vertically upper side of the appliance cover 300 or the gap S3 and the charging unit.

[0100] Therefore, the planar shape of the second rib 130 is not limited to being annular as described in the first embodiment, and may be arc-shaped (for example, arch-shaped). The second rib 130 according to the present embodiment is a rib formed to protrude from the bottom surface portion 111 toward the light-emitting portion 200b, and may be a rib that surrounds at least a part of the side surface 200b1 on the outer circumferential side of the light-emitting portion 200b.

[0101] When the second rib 130 has an arc-like shape in a plan view, the step portion 133 may be formed from one end to the other end in the circumferential direction of the second rib 130. When the second rib 130 has an annular shape, the step portion 133 may be formed in an annular shape extending in the circumferential direction of the second rib 130.

[0102] The water droplets D are formed by condensation water or water that has entered between the appliance body 100 and the appliance cover 300. Fig. 7 shows an example in which the water droplets D are formed by the water that has entered between the appliance body 100 and the appliance cover 300 and falls through the gap S3.

[0103] When water droplets D fall on the second rib 130, most of the water droplets D flow along the circumferential direction of the second rib 130. Then, the water droplets D that flow in the circumferential direction of the second rib 130 are discharged to the outside of the lighting fixture 10 via the water drainage portion 130c and the drainage hole 113.

[0104] In this embodiment, the device body 100 is attached to the wall 600 so that the draining portion 130c of the second rib portion 132 is vertically downward. In other words, the device body 100 is attached to the wall 600 so that the peak 131a of the second rib 130 is vertically upward. Therefore, the peak 131a having a peak shape in a plan view is disposed at a position where the water droplets D fall on the second rib 130. This further allows the water droplets D that fall on the second rib 130 to flow in the circumferential direction of the second rib 130.

[0105] However, some of the water droplets D may flow in the height direction (Z-axis direction) of the second rib 130. The step portion 133 has a function of suppressing the water droplets D flowing in the height direction of the second rib 130 from falling from the tip portion 132a of the second rib 130. If there is a step on the path along which the water droplets D flow, the water droplets D have the property of spreading and flowing along the direction in which the step is formed (in the present embodiment, the circumferential direction of the second rib 130) due to the influence of surface tension and the like. Therefore, the step portion 133 according to this embodiment, which extends in the circumferential direction of the second rib 130, can, for example, as shown in FIG. 8, cause the water droplets D that have flowed in the height direction of the second rib 130 to flow in the circumferential direction of the second rib 130. FIG. 8 is a diagram showing the flow of the water droplets D when the water droplets D fall on the second rib 130 according to this embodiment when the second rib 130 is attached to the wall 600. The arrows in FIG. 8 indicate the flow of the water droplets D.

[0106] The position where the step portion 133 in the second rib 130 is formed may be on the light-emitting portion 200b side of the position P where the water droplets D fall on the second rib 130. For example, the position P is a point where the water droplets D fall from the end portion 300a on the bottom surface portion 111 side of the appliance cover 300 toward the second rib 130. The point where the water droplets D fall includes a point where it is assumed that the water droplets D will fall.

[0107] In addition, when the second rib 130 is provided so as to surround the side surface 200b1 of the light-emitting unit 200b, it is preferable that the second rib 130 is formed so as not to allow water droplets D to fall from the tip 132a of the second rib 130 to the boundary B. For example, the tip 132a of the second rib 130 may not be flush with the boundary B. The height H2 of the second rib 130 may be a length other than the distance between the bottom surface portion 111 and the boundary B. For example, the second rib 130 may be formed so as to surround both the second cover portion 240 and the second main body portion 230. This can prevent water droplets D from falling from the tip 132a of the second rib 130 to the boundary B of the light-emitting unit 200b. In other words, it is possible to prevent the light-emitting unit 200b (for example, the light-emitting module 231) from being damaged by the water droplets D.

[0108] 6 and 7, an example in which one step portion 133 is formed on the outer peripheral surface 130a of the second rib 130 has been described, but the present invention is not limited thereto. Two or more second ribs 130 may be formed on the tip portion 132a side of the second rib 130 from the position P where the water droplets D fall. In this case, in each of the two or more step portions 133, the outer peripheral surface 130a of the rib portion on the tip portion 132a side is recessed between the rib portion arranged on the bottom surface portion 111 side of one step portion 133 and the rib portion arranged on the tip portion 132a side of the one step portion 133. For example, in the cross section shown in FIG. 7, the cross-sectional shape of the outer peripheral surface 130a of the second rib 130 may be a step shape descending from the bottom surface portion 111 side toward the tip portion 132a side.

[0109] 7, the fixture body 100 may have a drain outlet 114 (drain hole) formed in a portion on the positive side of the Y axis. For example, the fixture body 100 may have a drain outlet formed in a portion on the vertically upper side in a state where the fixture body 100 is attached to a wall 600 so that the drain portion 130c of the second rib portion 132 is on the vertically lower side. When such a lighting fixture 10 is attached to a ceiling or the like, the drain outlet 114 can be used as a drain hole for the side wall portion 112.

[0110] [2-2. Effects, etc.] As described above, the lighting fixture 10 according to the present embodiment includes the fixture body 100 having the bottom surface portion 111, the socket 140 disposed on the bottom surface portion 111, the power source unit 200a detachably attached to the socket 140, and the light source unit 200 having the light-emitting unit 200b surrounding the power source unit 200a in a plan view with the power source unit 200a attached to the socket 140. The fixture body 100 further includes the second rib 130 (an example of a rib) formed to protrude from the bottom surface portion 111 toward the light-emitting unit 200b side and surrounding at least a part of the side surface 200b1 on the outer periphery side of the light-emitting unit 200b. The second rib 130 has a step portion 133 in which the outer periphery surface 130a on the light-emitting unit 200b side is recessed from the outer periphery surface 130a on the bottom surface portion 111 side.

[0111] For example, the second rib 130 has a first rib portion 131 arranged on the light-emitting portion 200b side, a second rib portion 132 arranged on the bottom portion 111 side of the first rib portion 131, and a step portion 133 formed on an outer peripheral surface 130a of the boundary between the first rib portion 131 and the second rib portion 132 and extending along the shape of the second rib 130 in a planar view, where the outer peripheral surface 130a of the first rib portion 131 is recessed toward the light-emitting portion 200b side more than the outer peripheral surface 130a of the second rib portion 132.

[0112] This makes it possible to change the flow direction of the water droplets D that fall onto the second rib 130 and flow in the height direction of the second rib 130 (the Z-axis direction, the direction toward the light-emitting unit 200b) to a direction along the step portion 133. This makes it possible to prevent the water droplets D that have fallen toward the charging unit (the power supply unit 200a and the socket 140) from falling onto the charging unit.

[0113] Further, the step portion 133 is disposed on the light-emitting portion 200b side of the position P at which the water droplets D fall onto the second rib .

[0114] This allows the water droplets D flowing in the height direction of the second rib 130 to flow in the circumferential direction of the second rib 130 effectively.

[0115] The lighting fixture 10 further includes a light-transmitting fixture cover 300 that covers the light source unit 200 and is attached to the fixture body 100. Position P is a point at which a water droplet D falls from an end 300a of the fixture cover 300 on the bottom portion 111 side toward the second rib 130.

[0116] This makes it possible to prevent water droplets D that have fallen from the appliance cover 300 toward the charging unit from falling onto the charging unit. For example, it is possible to prevent water that has entered through a gap between the appliance cover 300 and the appliance body 100 caused by improper attachment of the appliance cover 300 and the appliance body 100 from falling onto the charging unit.

[0117] The second rib 130 has an arc-shaped shape in a plan view, and has a first rib portion 131 on the bottom surface portion 111 side of the step portion 133, and a second rib portion 132 on the light-emitting portion 200b side of the step portion 133. The first rib portion 131 has a peak 131a at position P that has a peak shape in a plan view.

[0118] This allows the water droplets D that fall onto the second rib 130 to flow efficiently in the circumferential direction of the second rib 130. This makes it possible to protect the live portion even more effectively.

[0119] The second rib 130 is formed in a ring shape surrounding the side surface 200b1 on the outer circumferential side of the light emitting part 200b. The step part 133 is formed in a ring shape extending in the circumferential direction of the second rib 130.

[0120] This makes it possible to prevent water droplets D from falling on the charging section, regardless of the mounting position in the rotational direction in a plan view of the fixture body 100. For example, even if the fixture body 100 is not mounted in the correct mounting direction (for example, mounted so that the drain outlet 113 of the fixture body 100 is vertically upward), the charging section can be protected from water droplets D.

[0121] Additionally, the lighting fixture 10 is mounted on a wall 600 .

[0122] This makes it possible, when attached to wall 600, to protect the charging section from water droplets D falling vertically downward.

[0123] (Other embodiments) Although the lighting fixture has been described above based on each embodiment, the present invention is not limited to these embodiments. As long as it does not deviate from the spirit of the present invention, various modifications conceivable by those skilled in the art to the present embodiments and forms constructed by combining components of different embodiments are also included within the scope of the present invention.

[0124] For example, in each of the above-described embodiments, an example in which the opening 200d is formed in the light source unit 200 has been described, but the present invention is not limited to this. The opening 200d does not have to be formed in the light source unit 200. For example, the power supply unit 200a and the light emitting unit 200b do not have to be disposed apart from each other. For example, the power supply unit 200a and the light emitting unit 200b may be disposed in one housing.

[0125] In addition, in each of the above-described embodiments, an example in which a light emitting module is not provided in the power supply unit 200a has been described, but the present invention is not limited to this. In order to illuminate the irradiation surface more uniformly, a light emitting module may also be provided in the power supply unit 200a.

[0126] In the above embodiment, an example in which the light source unit 200 is detachably attached to the fixture body 100 has been described, but the present invention can also be applied to a lighting fixture 10 in which the light source unit 200 is fixedly attached to the fixture body 100. The fixture body 100 and the light source unit 200 do not have to have a configuration in which the light source unit 200 can be detachably attached to the fixture body 100.

[0127] In addition, in each of the above-described embodiments, an example in which no other member is disposed between the first rib 120 and the back surface 200b2 of the light-emitting unit 200b has been described, but the present invention is not limited to this. For example, a cushion member (e.g., a cushion member made of urethane or the like) that fills at least a part of the gap between the first rib 120 and the light-emitting unit 200b may be disposed on at least one of the upper surface 120a of the first rib 120 and the back surface 200b2 of the light-emitting unit 200b.

[0128] In addition, in each of the above-described embodiments, an example in which no other member is disposed between the second rib 130 and the side surface 200b1 of the light-emitting unit 200b has been described, but the present invention is not limited to this. For example, a cushion member or the like that fills at least a part of the gap between the second rib 130 and the light-emitting unit 200b may be disposed on at least one of the inner peripheral surface 130b of the second rib 130 (e.g., the inner peripheral surface 130b of the second rib portion 132) and the side surface 200b1 of the light-emitting unit 200b.

[0129] In addition, in the above embodiment, an example has been described in which the first rib 120 and the second rib 130 are arranged upright relative to the bottom surface portion 111, but at least one of the first rib 120 and the second rib 130 may be a protrusion that protrudes at a predetermined angle relative to the bottom surface portion 111.

[0130] In the above-described second embodiment, the second rib 130 is provided so as to surround the side surface 200b1 of the light-emitting portion 200b, but the present invention is not limited to this. For example, the second rib 130 having the step portion 133 may be provided between the light-emitting portion 200b and the bottom surface portion 111.

[0131] Furthermore, the step portion 133 according to each of the above-described embodiments may be formed to have a predetermined inclination from the first rib portion 131 to the second rib portion 132. In other words, the step portion 133 may have an inclined surface that inclines from the first rib portion 131 to the second rib portion 132. [Explanation of symbols]

[0132] 10 Lighting equipment 100 Equipment body 111 Bottom part 120 First Rib 130 Second Rib 140 Sockets 150 Socket stand 200 Light source unit 200a power supply section 200b Light emitting part 200b1 side 231 Light Emitting Module B boundary F finger H2 Height S2 Gap W2 Width

Claims

1. A device body having a bottom surface; A socket disposed on the bottom surface portion; a light source unit including a power supply unit that is detachably attached to the socket, a light emitting unit that surrounds the power supply unit in a plan view with the power supply unit attached to the socket, and a connecting unit that connects the power supply unit and the light emitting unit; The light emitting unit is disposed at a distance from the fixture body via the connecting unit, The device body further includes a rib surrounding the side surface of the outer periphery of the light emitting part, and at least one of the height and the gap between the rib and the side surface is formed so that a person's finger does not touch the back surface of the light emitting part. Lighting fixtures.

2. the light emitting unit includes a light emitting module, a main body in which the light emitting module is disposed, and a light-transmitting cover that covers the light emitting module and is attached to the main body, The rib is a protrusion that protrudes from the bottom surface portion and has a height equal to or greater than the distance between the rear surface and the bottom surface portion and equal to or less than the distance between the boundary between the main body portion and the cover and the bottom surface portion.

2. A lighting fixture according to claim 1.

3. the light emitting unit includes a light emitting module, a main body in which the light emitting module is disposed, and a light-transmitting cover that covers the light emitting module and is attached to the main body, The rib is provided so as to protrude to a position flush with the boundary between the main body and the cover.

2. A lighting fixture according to claim 1.

4. The light source unit is configured to be deformable when stress is applied to the light emitting portion in a state where the light source unit is attached to the fixture body. A lighting fixture according to any one of claims 1 to 3.

5. The outer peripheral surface and the inner peripheral surface of the rib are flat surfaces. A lighting fixture according to any one of claims 1 to 4.

6. The rib has a first portion located on the bottom side of the bottom surface portion and the light emitting portion, a second portion located on the light emitting portion side of the bottom surface portion and the light emitting portion, and one annular step portion provided on an outer circumferential surface of a boundary between the first portion and the second portion and extending in a circumferential direction of the rib.

6. A lighting device according to claim 5.

7. a height of the first portion is less than a distance between the bottom surface portion and the light emitting portion, The second portion surrounds the outer peripheral side surface of the light emitting portion.

7. A lighting device according to claim 6.

8. The step portion is a step in which an outer peripheral surface of the second portion is recessed toward the light emitting portion from an outer peripheral surface of the first portion.

8. A lighting device according to claim 6 or 7.

9. The outer circumferential surfaces of the first portion and the second portion are each a flat surface. A lighting fixture according to any one of claims 6 to 8.

10. The first portion has a pointed portion that is sharp in plan view at a position where water droplets fall onto the rib. A lighting fixture according to any one of claims 6 to 9.

11. The position is a point where the water droplet falls from an end portion of the light-transmitting fixture cover, to which the light source unit is covered, on the bottom side of the fixture cover, toward the rib.

11. A lighting device according to claim 10.

12. The device body further includes a side wall portion to which a light-transmitting device cover is attached, the side wall portion surrounding the rib from an outer periphery and covering the light source unit. A lighting fixture according to any one of claims 1 to 10.

13. When the instrument cover is attached to the side wall portion, the rib does not come into contact with the instrument cover.

13. A lighting device according to claim 12.

14. the appliance cover attached to the side wall portion; 14. A lighting device according to claim 12 or 13.

15. The rib is disposed at a position where a part of the rib overlaps with the light emitting portion in a plan view. A lighting device according to any one of claims 1 to 14.

16. The width of the gap is smaller than the finger in the plan view. A lighting device according to any one of claims 1 to 15.

17. The width is 1 cm or less.

17. A lighting device according to claim 16.

18. The finger is a test finger specified by JIS. A lighting device according to any one of claims 1 to 17.

19. The light emitting section is disposed closer to the bottom section than the power supply section when the light source unit is attached to the fixture body. A lighting device according to any one of claims 1 to 18.

20. The device body is a resin molded product. A lighting device according to any one of claims 1 to 19.

21. The luminaire is mounted on a wall A lighting device according to any one of claims 1 to 20.

Images