Light source unit and lighting fixture

Abstract

To provide a light source unit whose workability is improved at the time of assembly and at the time of replacement.SOLUTION: A light source unit 200 comprises: a base 230a for receiving power supplied from an appliance body 100; a power supply unit 232 connected to the base 230a; a circuit case 233 housing the power supply unit 232; a frame-shaped light emitting module 220 surrounding the circuit case 233, and for emitting light by using power from the power supply unit 232; and a translucent cover 260 comprising a first cover part 261 covering the circuit case 233, a frame-shaped second cover part 262 arranged separately from the first cover part 261, and covering the light emitting module 220, and a third cover part 263 connecting the first cover part 261 and the second cover part 262. The light source unit 200 comprises an opening 263a into which a finger of a person can be inserted.SELECTED DRAWING: Figure 5

Description

[Technical field]

[0001] The present invention relates to a light source unit that is detachably attached to a fixture body, and to a lighting fixture including the light source unit. [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 for power supply and a light source 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] Incidentally, it is desirable to improve the workability during assembly and replacement of the light source unit.

[0006] SUMMARY OF THE PRESENT DISCLOSURE In view of the above, an object of the present invention is to provide a light source unit and a lighting fixture that are easy to assemble and replace. [Means for solving the problem]

[0007] In order to achieve the above-mentioned object, a light source unit according to one embodiment of the present invention is a light source unit that can be freely attached and detached to a fixture body, and includes a base for receiving power supplied from the fixture body, a power supply unit connected to the base, a circuit case that houses the power supply unit, a frame-shaped first light-emitting module that surrounds the circuit case, the first light-emitting module emitting light using power from the power supply unit, and a translucent cover having a first cover portion that covers the circuit case, a frame-shaped second cover portion that is positioned at a distance from the first cover portion and covers the first light-emitting module, and a third cover portion that connects the first cover portion and the second cover portion, and when the light source unit is attached to the fixture body, the first cover portion, the second cover portion, and the third cover portion are integrally molded products.

[0008] In order to achieve the above-mentioned object, a light source unit according to one embodiment of the present invention is a light source unit that can be freely attached and detached to a fixture body, and includes a base for receiving power supplied from the fixture body, a power supply unit connected to the base, a circuit case that houses the power supply unit, a frame-shaped light-emitting module that surrounds the circuit case and emits light using power from the power supply unit, and a translucent cover having a first cover portion that covers the circuit case, a frame-shaped second cover portion that is positioned at a distance from the first cover portion and covers the light-emitting module, and a third cover portion that connects the first cover portion and the second cover portion, and the light source unit has an opening through which a person's finger can be inserted.

[0009] In order to achieve the above object, a lighting fixture according to one aspect of the present invention includes the above light source unit and the fixture body. Effect of the Invention

[0010] According to one aspect of the present invention, it is possible to provide a light source unit and a lighting fixture that have improved workability during assembly and replacement. [Brief description of the drawings]

[0011] [Figure 1] 1 is a perspective view showing the appearance of a lighting fixture according to a first embodiment. [Diagram 2] 1 is an exploded perspective view showing a configuration of a lighting fixture according to a first embodiment. [Diagram 3] 2 is a perspective view showing the appearance of the light source unit according to the first embodiment on the side opposite to the fixture body. FIG. [Figure 4] 1 is a perspective view showing the external appearance of a fixture body side of a light source unit according to embodiment 1. FIG. [Diagram 5] 1 is an exploded perspective view showing a configuration of a light source unit according to embodiment 1. FIG. [Figure 6] 5A to 5C are diagrams for explaining a structure for preventing wires from becoming caught in the circuit cover and the circuit case according to the first embodiment. [Figure 7] 5A to 5C are diagrams illustrating a structure for preventing wires from becoming caught in the first main body portion and the fixing plate according to the first embodiment. [Figure 8] 5A to 5C are diagrams illustrating a structure for preventing wires from becoming pinched in the light source cover and the second main body part according to the first embodiment. [Figure 9] FIG. 2 is a diagram showing a state in which wiring is arranged on a substrate according to the first embodiment. [Figure 10] 2 is a cross-sectional view of a light source unit according to the first embodiment. FIG. [Figure 11] FIG. 11 is an exploded perspective view showing the configuration of a light source unit according to the second embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] In the following, a light source unit and a lighting device according to an embodiment of the present invention will be described in detail with reference to the drawings. Note that each of the embodiments described below shows a specific example of the present invention. 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. Therefore, among the components in the following embodiments, components that are not described in the independent claims will be described as optional components.

[0013] 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.

[0014] 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.

[0015] 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.

[0016] (Embodiment 1) Hereinafter, a lighting fixture 10 including a light source unit 200 according to the present embodiment will be described with reference to FIGS.

[0017] [1. Lighting fixture configuration] Fig. 1 is a perspective view showing the appearance of lighting fixture 10 according to the present embodiment. Fig. 2 is an exploded perspective view showing the configuration of lighting fixture 10 according to the present embodiment.

[0018] 1 and 2, a lighting fixture 10 according to the present embodiment includes a fixture body 100, a light source unit 200, and a fixture cover 300 (e.g., a globe). The lighting fixture 10 is installed on an installation surface (e.g., a ceiling 600 or a wall) of a building material or the like. The lighting fixture 10 is installed in a place exposed to the external environment, such as the ceiling 600 or a wall of a common passageway of an apartment building.

[0019] 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).

[0020] The fixture body 100 has a socket 110. The socket 110 fixes the light source unit 200 and supplies power for the light source unit 200 to emit light. An opening 111 is formed in the socket 110, and the light source unit 200 is attached to the socket 110 by rotating the light source unit 200 relative to the socket 110 with an electrode pin 231 (see FIG. 4 ) of the light source unit 200 inserted into the opening 111.

[0021] The instrument body 100 is made of, for example, a resin material or a metal material.

[0022] The light source unit 200 emits light by receiving power from the socket 110. The light source unit 200 is detachably attached to the socket 110. The light source unit 200 includes a power source section 200a in which a power source unit 232 (see FIG. 5) and a base 230a (see FIG. 4) are arranged, a light emitting section 200b surrounding the power source section 200a, and a connecting section 200c connecting the power source section 200a and the light emitting section 200b. An opening 200d is formed in the light source unit 200. In the light source unit 200 according to the present embodiment, the power source section 200a and the light emitting section 200b are arranged apart from each other. Then, wiring 235 (see FIG. 5) for supplying power from the power source section 200a to the light emitting section 200b is arranged inside at least one connecting section 200c. Details of the light source unit 200 will be described later.

[0023] The fixture cover 300 is formed of a light-transmitting material and transmits the 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. The fixture cover 300 may have a function of diffusing the 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.

[0024] [2. Light source unit configuration] Next, the light source unit 200 will be further described with reference to Figs. 3 to 5. Fig. 3 is a perspective view showing the appearance of the light source unit 200 according to this embodiment on the side opposite to the fixture body 100. Fig. 4 is a perspective view showing the appearance of the light source unit 200 according to this embodiment on the fixture body 100 side. Fig. 5 is an exploded perspective view showing the configuration of the light source unit 200 according to this embodiment.

[0025] As shown in FIGS. 3 to 5, the light source unit 200 has a main body section 210, a light emitting module 220, a circuit section 230, a circuit cover 240, a fixing plate 250, and a light source cover 260 (for example, a globe).

[0026] [2-1.Main body] The main body 210 is a support member for supporting the light emitting module 220, the circuit section 230, the fixing plate 250, and the light source cover 260. Specifically, the main body 210 has a first main body 211 disposed in the center in a plan view, a second main body 212 surrounding the first main body 211 and disposed at a distance from the first main body 211, and a first connecting section 213 connecting the first main body 211 and the second main body 212.

[0027] The first main body 211 is a portion for supporting the circuit section 230. The first main body 211 has an opening 211a for arranging the circuit section 230 in the center. The first main body 211 also has a locking portion 211b, a bottom surface portion 211c, a side surface portion 211d1 for supporting the fixing plate 250 and protruding from the bottom surface portion 211c, and a rib 211d2 protruding from a part of the side surface portion 211d1 to the Z-axis positive side. The first main body 211 has a ring-shaped (for example, annular) shape in a plan view. The first main body 211 is covered by a first cover portion 261 of the light source cover 260 described later. The bottom surface portion 211c is an example of a second bottom surface portion, and the side surface portion 211d1 is an example of a second side surface portion.

[0028] The second body part 212 is a part for supporting the light emitting module 220. The second body part 212 is an annular member surrounding the first body part 211 in a plan view. In this embodiment, the second body part 212 is annular surrounding the annular first body part 211 in a plan view. The first body part 211 and the second body part 212 are formed, for example, in a concentric shape. In this embodiment, the second body part 212 is disposed closer to the fixture body 100 than the first body part 211. Note that, "the second body part 212 is disposed closer to the fixture body 100 than the first body part 211" means that at least a part of the second body part 212 is disposed closer to the fixture body 100 than the first body part 211. The second body part 212 is covered by a second cover part 262 of the light source cover 260, which will be described later.

[0029] The first connecting portion 213 is a portion for connecting the first body portion 211 and the second body portion 212. The first connecting portion 213 has a rectangular shape extending from the first body portion 211 to the second body portion 212 in a plan view. In this embodiment, three first connecting portions 213 are disposed apart from each other. That is, the first connecting portions 213 are not annular. Note that the shape and the number of the first connecting portions 213 are not limited to the above. The first connecting portion 213 is covered by the second connecting portion 263 of the light source cover 260 described later.

[0030] In this embodiment, since first main body portion 211 and second main body portion 212 are positioned at different positions in the Z-axis direction, first connecting portion 213 extends at a predetermined angle with respect to the Z-axis. The predetermined angle is greater than 0° and less than 90°. In other words, first connecting portion 213 extends in an oblique direction.

[0031] The opening 213a is formed in the main body 210 thus formed. In this embodiment, three openings 213a are formed. The openings 213a are formed by separating the first main body 211 and the second main body 212 and arranging the first connecting portion 213 apart from each other. The opening 213a may be large enough for a person's finger to enter, for example. This allows a person to insert a finger into the opening 213a to grasp the first main body 211 when holding the light source unit 200, for example. This improves the workability when attaching the light source unit 200 to the instrument main body 100. The size of the opening that allows a finger to enter is, for example, a size that allows a test finger defined in JIS C 0920 (IEC 60529) to enter. For example, the size of the opening that allows a finger to enter is, for example, a size that allows three or four of the above-mentioned test fingers to enter. For example, the size of the opening 213a in plan view is, for example, about 2 cm to 2.5 cm in radial length and about 8 cm to 10 cm in circumferential length. Note that the circumferential length is, for example, the median value of the circumferential length of the arch-shaped opening 213a.

[0032] A holding portion 214 for holding the wiring 235 is formed in the first connecting portion 213. The holding portion 214 has two or more protruding ribs. The wiring 235 is fitted into a groove 214b (see FIG. 7) between the protruding ribs. It is sufficient that the holding portion 214 is formed in at least one of the first connecting portions 213.

[0033] Further, the first connecting portion 213 has a mark 213b formed on the surface on the light source cover 260 side (Z-axis positive side). The mark 213b indicates the orientation of the light source cover 260 when the light source cover 260 is attached to the main body portion 210. The mark 213b is formed on the first connecting portion 213 located in the same direction as one of the two power supply pins 231 in a plan view. The same direction means the direction with respect to the center of the light source unit 200 in a plan view. In the present embodiment, one of the power supply pins 231 is disposed on the X-axis positive side with respect to the center of the light source unit 200 as shown in FIG. 4, and the mark 213b is disposed on the X-axis positive side with respect to the center of the light source unit 200 as shown in FIG. 5. In this case, the X-axis positive direction is the same direction.

[0034] The mark 213b is not limited to being formed on the first connecting portion 213 located in the same direction as one of the two power supply pins 231, but may be formed on at least one of the first connecting portions 213. For example, the mark 213b may be formed on a first connecting portion 213 on which the holding portion 214 is not formed.

[0035] The main body 210 is formed of an insulating material such as a resin. The main body 210 is, for example, a resin molded product. The main body 210 having the first main body 211, the second main body 212, and the first connecting portion 213 is an integrally molded product. From the viewpoint of suppressing generation of gas such as bromine from the main body 210 due to light from the light emitting element 222, the main body 210 is preferably formed of a resin other than PBT (Polybutylene Terephthalate). The main body 210 is preferably formed of, for example, polycarbonate.

[0036] In this embodiment, the main body 210 and the circuit section 230 are separate members, but this is not limited to the above depending on the characteristics and specifications of the light source unit 200, and the main body 210 and the circuit section 230 may be a single molded product.

[0037] [2-2. Light-emitting module] The light emitting module 220 is a light source for emitting, for example, white light. The white light is, for example, light with a color temperature (correlated color temperature) of 2600K to 7100K. The light emitting module 220 is attached on the second main body portion 212. The light emitting module 220 is provided in a ring shape surrounding the circuit portion 230 (for example, the circuit case 233). The light emitting module 220 has a plurality of boards 221 and a plurality of light emitting elements 222 mounted on each of the plurality of boards 221.

[0038] The substrate 221 is a printed wiring board for mounting a plurality of light emitting elements 222, and is formed in an arch shape. The plurality of substrates 221 are attached to the second body part 212 by fastening members 271 (e.g., screws, see FIG. 9) so as to surround the first body part 211. Note that, in this embodiment, an example in which the light emitting module 220 is configured with three substrates 221 will be described, but the number of substrates 221 is not limited to this. Also, the shape of the substrate 221 is not limited to an art shape.

[0039] For example, a resin substrate based on resin, a metal-based substrate based on metal, a ceramic substrate made of ceramic, etc. can be used as the substrate 221. Furthermore, the substrate 221 is not limited to a rigid substrate, and may be a flexible substrate.

[0040] The plurality of light-emitting elements 222 are arranged in the circumferential direction of the substrate 221. In this embodiment, the plurality of light-emitting elements 222 are arranged in three rows in the circumferential direction of the substrate 221. In this embodiment, the three rows of light-emitting elements are annular. In each row, the plurality of light-emitting elements 222 are arranged at equal intervals in the circumferential direction of the substrate 221.

[0041] Each of the light-emitting elements 222 is a packaged surface mount device (SMD) type white LED element. That is, each of the light-emitting elements 222 has a package (container) made of white resin having a recess, an LED chip primarily mounted on the bottom surface of the recess of the package, and a sealing member enclosed in the recess of the package. The LED chip is, for example, a blue LED chip that emits blue light. The sealing member contains a yellow phosphor such as YAG (yttrium aluminum garnet) that emits fluorescence using the blue light from the blue LED chip as excitation light.

[0042] Thus, each of the light-emitting elements 222 is a BY-type white LED element composed of a blue LED chip and a yellow phosphor. Specifically, the yellow phosphor contained in the sealing member is excited by absorbing a portion of the blue light from the blue LED chip, and emits yellow light. This emitted yellow light is mixed with the blue light not absorbed by the yellow phosphor to generate white light. In this manner, white light is emitted from each of the light-emitting elements 222.

[0043] The light emitting module 220 emits light by means of an electrode from the power supply unit 232. The light emitting module 220 is an example of a first light emitting module.

[0044] The light source of the lighting fixture 10 is not particularly limited. For example, 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 instead of the light emitting module 220. Also, although the light emitting module 220 has been described as emitting white light as an example, the light emission color is not limited thereto.

[0045] The light emitting module 220 is disposed at a position closer to the fixture body 100 (i.e., the installation surface) than the circuit section 230 (e.g., the circuit case 233) in a state in which the light source unit 200 is attached to the fixture body 100. For example, the light emitting module 220 may be disposed closer to the fixture body 100 than the base 230a in a state in which the light source unit 200 is attached to the fixture body 100. By disposing the light emitting module 220 on the fixture body 100 side, the lighting effect can be improved. Note that disposing the light emitting module 220 closer to the fixture body 100 than the circuit section 230 means that at least a part of the light emitting module 220 is disposed closer to the fixture body 100 than the circuit section 230.

[0046] [2-3. Circuit section, circuit cover, and fixing plate] The circuit section 230 generates power for the light source unit 200 to emit light, and supplies it to the light source unit 200. The circuit section 230 has an electrode pin 231, a power supply unit 232, and a circuit case 233. Furthermore, a base 230a to be attached to the socket 110 is provided on the installation surface side (Z-axis negative side) of the circuit case 233. The installation surface side of the circuit case 233 is configured as a part of the base 230a. The base 230a is a member for receiving power supplied from the fixture body 100.

[0047] The electrode pin 231 is provided protruding from the base 230a, and is a power receiving pin that receives power from the fixture body 100 to make the light source unit 200 emit light. In this embodiment, the electrode pin 231 is composed of a small diameter part formed protruding from the base 230a and a large diameter part that is disposed at the tip of the small diameter part and has a larger diameter than the small diameter part. The base 230a is, for example, a GX53 type base.

[0048] It should be noted that the base 230a is not limited to a GX-type base, and may be, for example, an E-type base, a hook-and-seal base, etc. Furthermore, the number of electrode pins 231 is not limited to two.

[0049] The power supply unit 232 includes a substrate 232a and a plurality of circuit components 232b mounted on the substrate 232a. The power supply unit 232 is connected to the base 230a (specifically, the electrode pins 231).

[0050] The substrate 232a is a printed wiring board for mounting a plurality of circuit components 232b. The substrate 232a is housed in a circuit case 233, for example, such that the plurality of circuit components 232b face the opposite side to the installation surface.

[0051] Each of the plurality of circuit components 232b is a power supply circuit component constituting a circuit for generating power for making the light source unit 200 emit light. The plurality of circuit components 232b converts AC power supplied from the above-mentioned commercial power source via wiring into DC power. The DC power generated by the plurality of circuit components 232b is supplied to the light-emitting module 220, causing the light-emitting module 220 to emit light.

[0052] Each of the plurality of circuit components 232b is mounted on the surface opposite to the installation surface of the substrate 232a, but is not limited to this. From the viewpoint of preventing the wiring 235 from being pinched between the substrate 232a and the circuit case 233, each of the plurality of circuit components 232b is preferably mounted on the surface opposite to the installation surface of the substrate 232a.

[0053] The multiple circuit components 232b may include not only the power supply circuit components described above, but also circuit components constituting other circuits. For example, the multiple circuit components 232b may include drive circuit components constituting a dimming circuit or a boost circuit, or may include communication circuit components (communication modules) constituting a communication circuit.

[0054] The circuit case 233 has a bottomed cylindrical first case part 233a having a bottom part 233a1 and a side part 233a2 protruding from the periphery of the bottom part 233a1 to the opposite side to the installation surface, and a second case part 233b having a bottom part 233b1 protruding in a flange shape from the side part 233a2 (for example, the tip of the side part 233a2) of the first case part 233a and a side part 233b2 protruding from the periphery of the bottom part 233b1 to the opposite side to the installation surface. The shape of the bottom part 233a1 in a plan view is, for example, circular, and the shape of the bottom part 233b1 in a plan view is, for example, annular. The power supply unit 232 is accommodated in the circuit case 233. The bottom part 233b1 is an example of a flange part.

[0055] The first case portion 233a has an opening 233a3 through which a wire for supplying power from the power supply unit 232 to the light emitting module 220 is inserted. The opening 233a3 is covered by a circuit cover 240 described later. The electrode pin 231 is provided, for example, protruding from the bottom surface portion 233b1. The first case portion 233a is an example of a case portion.

[0056] Further, a claw portion 233c is provided on the side surface portion 233b2 of the second case portion 233b to be hooked and attached to the locking portion 211b provided on the first main body portion 211. In other words, the circuit case 233 is detachably attached to the first main body portion 211. This allows the socket 110 to be appropriately replaced depending on the type of socket 110 (GX53 type socket, E type socket, etc.) of the device main body 100 to be attached, for example. Note that the shape of the circuit case 233 is not limited to the above.

[0057] The circuit case 233 is formed of an insulating material such as resin. The circuit case 233 is formed of a resin different from that of the main body 210. The circuit case 233 may be formed of PBT, for example, from the viewpoint of improving the heat resistance of the circuit case 233. At least a part of the circuit case 233 may be formed of metal. This allows the heat generated in the board 232a and the plurality of circuit components 232b to be efficiently dissipated.

[0058] The circuit cover 240 is a cover that covers the opening 233a3 of the first case portion 233a. The circuit cover 240 is, for example, a bottomed cylindrical cover having a bottom surface portion 241 and a side surface portion 242 that protrudes from the periphery (outer periphery) of the bottom surface portion 241 toward the installation surface side. In a plan view, the bottom surface portion 241 is larger than the bottom surface portion 233a1 and smaller than the bottom surface portion 233b1. Therefore, the circuit cover 240 covers the opening 233a3 by being placed on the bottom surface portion 233b1. The bottom surface portion 241 is an example of a first bottom surface portion, and the side surface portion 242 is an example of a first side surface portion.

[0059] The circuit cover 240 is formed of an insulating material such as resin. The circuit cover 240 is formed of the same resin as the circuit case 233. From the viewpoint of improving the heat resistance of the circuit cover 240, the circuit cover 240 is preferably formed of PBT.

[0060] Here, the bite (wire bite) of the wiring 235 extending from the substrate 232a to the light source unit 200 between the circuit case 233 and the circuit cover 240 will be described with reference to Fig. 6. Fig. 6 is a diagram for explaining a structure for preventing the bite of the wiring 235 in the circuit cover 240 and the circuit case 233 according to the present embodiment. Fig. 6 is an enlarged perspective view showing only a part of the circuit section 230 and the circuit cover 240.

[0061] As shown in FIG. 6, a holding portion 234 for holding the wiring 235 is formed on the bottom surface portion 233b1 of the circuit case 233. Specifically, the holding portion 234 has a protruding rib 234a extending from the opening 233a3 (see FIG. 5) toward the first connecting portion 213 (see FIG. 5), and a groove 234b sandwiched between the ribs 234a. In this embodiment, three ribs 234a are provided. The groove 234b extends from the opening 233a3 toward the first connecting portion 213. For example, the wiring 235 is press-fitted into the groove 234b. One wiring 235 is arranged in one groove 234b. This allows the wiring 235 to be fixed. The holding portion 234 is an example of a first holding portion.

[0062] Further, a notch 243 is formed in the side surface portion 242 of the circuit cover 240 at a position corresponding to the holding portion 234. Specifically, the side surface portion 242 has the notch 243 at a position where the holding portion 234 is disposed when the circuit cover 240 is placed on the bottom surface portion 233b1. Therefore, when the circuit cover 240 is placed on the bottom surface portion 233b1, the holding portion 234 and the side surface portion 242 do not come into contact with each other. Specifically, the rib 234a and the side surface portion 242 do not come into contact with each other.

[0063] The notch 243 may be of a size such that the wiring 235 is not pinched by the circuit case 233 and the circuit cover 240 when the wiring 235 rides up from the holding portion 234. The notch 243 may be provided, for example, such that the distance between the holding portion 234 (e.g., rib 234a) and the side surface portion 242 is greater than the sum of the widths W (e.g., diameter) of the wirings 235. In this embodiment, since there are two wirings 235, the distance between the rib 234a and the side surface portion 242 of the notch 243 may be greater than the sum of the widths W of the two wirings 235. For example, the distance D1 between the upper surface 234a1 (the surface opposite the installation surface) of the rib 234a and the lower surface 244 of the side portion 242 in which the notch 243 is formed, and the distance D2 between the side surface 234a2 of the outermost rib 234a and the side surface 245 of the side portion 242 in which the notch 243 is formed, may each be greater than the sum of the widths W of the two wirings 235.

[0064] The cutout 243 is, for example, a rectangular cutout, but is not limited to this, and is an example of a first cutout.

[0065] Referring again to FIG. 5, the fixing plate 250 is a plate-like member for fixing the circuit section 230 to the main body section 210. The fixing plate 250 is disposed in contact with the main body section 210. Specifically, the fixing plate 250 has a circular shape in a plan view, and is disposed in contact with an annular side section 211d1 protruding from the first main body section 211 to the side opposite to the installation surface. More specifically, the fixing plate 250 is fixed to the main body section 210 by fitting a notch 251 of the fixing plate 250 into a rib 211d2 protruding from a part of the side section 211d1 to the Z-axis positive side. Then, the fixing plate 250 is fastened to the circuit section 230 (specifically, the circuit case 233) by a fastening member 270 (for example, a screw) via a through hole 252.

[0066] This allows the circuit section 230, which is fixed to the main body section 210 by the claw sections 233c and the locking sections 211b, to be fixed to the main body section 210 more firmly.

[0067] The fixed plate 250 is made of, for example, metal. The fixed plate 250 is made of, for example, aluminum. The fixed plate 250 may be made of, for example, resin.

[0068] Here, the pinching of the wiring 235 between the fixed plate 250 and the main body portion 210 (specifically, the first main body portion 211) will be described with reference to Fig. 7. Fig. 7 is a diagram for explaining a structure for preventing the pinching of the wiring 235 in the first main body portion 211 and the fixed plate 250 according to the first embodiment. Fig. 7 is an enlarged perspective view showing only a portion of the first main body portion 211, the first coupling portion 213, and the fixed plate 250.

[0069] As shown in FIG. 7, the first main body portion 211 and the first connecting portion 213 are formed with a holding portion 214 for holding the wiring 235. Specifically, the holding portion 214 has a protruding rib 214a extending from the first main body portion 211 (for example, the bottom surface portion 211c) toward the second main body portion 212, and a groove 214b sandwiched between the ribs 214a. In this embodiment, three ribs 214a are provided. The groove 214b extends from the first main body portion 211 toward the second main body portion 212. The wiring 235 is arranged in the groove 214b. One wiring 235 is arranged in one groove 214b. This allows the wiring 235 to be fixed. The holding portion 214 is an example of a second holding portion.

[0070] Further, a notch 211e is formed in the side surface portion 211d1 of the first main body portion 211 at a position corresponding to the holding portion 214. Specifically, the side surface portion 211d1 has a notch 211e at a position where the holding portion 214 is disposed when the fixing plate 250 is placed on the side surface portion 211d1. The notch 211e has a first notch portion 211f provided at a position where the holding portion 214 is formed, and a second notch portion 211g provided on the fixing plate 250 side from the first notch portion 211f and having a width W2 larger than the width W1 of the first notch portion 211f. As a result, when the fixing plate 250 is placed on the side surface portion 211d1, the holding portion 214 and the fixing plate 250 do not come into contact with each other.

[0071] The second cutout portion 211g may be large enough that the wiring 235 is not pinched by the upper surface 211h and the lower surface 253 of the fixing plate 250 when the wiring 235 rides up on the upper surface 211h formed by the second cutout portion 211g of the side surface portion 211d1. The second cutout portion 211g may be, for example, such that the distance D3 between the upper surface 211h and the lower surface 253 is greater than the total value of the widths W of the wirings 235. In this embodiment, since there are two wirings 235, the second cutout portion 211g may be, for example, such that the distance D3 is greater than the total value of the widths W of the two wirings 235. The second cutout portion 211g is, for example, a rectangular cutout, but is not limited thereto. The second cutout portion 211g is an example of a second cutout.

[0072] [2-4. Light source cover] 3 and 5 again, the light source cover 260 is a light-transmitting cover that covers the light-emitting module 220 and the circuit section 230. In a plan view, the light source cover 260 has a first cover part 261 that covers the circuit section 230 (for example, the circuit case 233), a frame-shaped second cover part 262 that is disposed apart from the first cover part 261 and covers the light-emitting module 220, and a second connecting part 263 that connects the first cover part 261 and the second cover part 262. In this embodiment, the light source cover 260 has a structural feature in that it covers the circuit section 230 that does not have the light-emitting module 220.

[0073] The first cover portion 261 has a circular shape in a plan view, and covers the circuit portion 230. In the present embodiment, the first cover portion 261 covers the fixing plate 250 arranged on the circuit portion 230. The first cover portion 261 has, for example, a flat portion 261a. The flat portion 261a is, for example, a surface parallel to the fixing plate 250.

[0074] The second cover portion 262 is an annular member surrounding the first cover portion 261 in a plan view. In the present embodiment, the second cover portion 262 is annular and surrounds the circular first cover portion 261. The first cover portion 261 and the second cover portion 262 are formed, for example, in a concentric shape. In the present embodiment, the second cover portion 262 is disposed closer to the appliance body 100 than the first cover portion 261.

[0075] The second cover portion 262 has, for example, a flat portion 262a. The flat portion 262a is, for example, a surface parallel to the substrate 221. In addition, the flat portion 262a is, for example, a surface parallel to the flat portion 261a.

[0076] The second connecting portion 263 has a rectangular shape extending from the first cover portion 261 to the second cover portion 262 in a plan view. For example, three second connecting portions 263 are arranged spaced apart from one another. That is, the second connecting portions 263 are not annular. Note that the shape and number of the second connecting portions 263 are not limited to the above. For example, two or more second connecting portions 263 are provided.

[0077] In the present embodiment, the second connecting portion 263 is disposed so as to cover the first connecting portion 213. This makes it possible to protect the wiring disposed in the first connecting portion 213. The second connecting portion 263 is an example of a third cover portion.

[0078] In addition, the second connecting portion 263 may have a function of guiding light from the light emitting module 220 to the first cover portion 261 side. This makes it possible to prevent the brightness of the light from the light source unit 200 from becoming uneven due to the power supply unit 200a not having a light emitting module becoming brighter. In other words, the light source unit 200 can uniformly illuminate the irradiation surface.

[0079] In this embodiment, since the first cover part 261 and the second cover part 262 are positioned differently in the Z-axis direction, the second connecting part 263 extends at a predetermined angle with respect to the installation surface and the Z-axis. The predetermined angle is greater than 0° and less than 90°. In other words, the second connecting part 263 extends in an oblique direction.

[0080] Openings 263a are formed in the light source cover 260 thus formed. In the present embodiment, three openings 263a are formed. The openings 263a have the same position and shape as the openings 213a in a plan view.

[0081] In addition, a mark 263b is formed on the surface of the second connecting portion 263 opposite to the main body portion 210 (the positive side of the Z axis). The light source cover 260 can be easily attached to the main body portion 210 by adjusting the orientation of the light source cover 260 and attaching it to the main body portion 210 so that the second connecting portion 263 on which the mark 263b is formed matches the first connecting portion 213 on which the mark 213b is formed. In addition, since the mark 263b is formed on the light source cover 260, the user can attach the light source unit 200 to the fixture main body 100 while visually checking the position of the mark 263b formed on the light source cover 260 and the opening 111 of the socket 110, and therefore the attachment work can be easily performed.

[0082] The light source cover 260 is formed of a light-transmitting member and transmits light emitted from the light-emitting module 220. The light source cover 260 is, for example, a resin molded product. The first cover portion 261, the second cover portion 262, and the second connecting portion 263 constituting the light source cover 260 are integrally molded products. The light source cover 260 is, for example, formed of polycarbonate or the like.

[0083] Furthermore, the light source cover 260 may have a function of diffusing light emitted from the light emitting module 220. 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 260 formed of transparent glass or resin, thereby forming a milky white light diffusing film on the light source cover 260. Furthermore, the light source cover 260 itself may be molded using a resin material in which a light diffusing material is dispersed. Note that the light source cover 260 is an example of a cover.

[0084] Here, the pinching between the light source cover 260 and the second main body 212 in the wiring 235 extending from the substrate 232a to the light source unit 200 will be described with reference to Figs. 8 and 9. Fig. 8 is a diagram for explaining a structure for preventing pinching of the wiring in the light source cover 260 and the second main body 212 according to this embodiment. Fig. 9 is a diagram showing a state in which the wiring 235 is arranged on the substrate 221 according to this embodiment. Note that Fig. 8 is an enlarged perspective view showing only a side portion 212a protruding from the inner periphery of the second main body 212 to the light source cover 260 side (opposite the installation surface), a side portion 262b of the second cover portion 262, and a part of the second connecting portion 263. Also, Fig. 9 is an enlarged perspective view showing the vicinity of the connection portion between the second main body 212 and the first connecting portion 213 in a state in which the light source cover 260 is removed.

[0085] As shown in FIG. 8, the second cover portion 262 is formed with an annular side portion 262b that protrudes from the inner periphery of the second cover portion 262 toward the second main body portion 212. Also, a notch 262c is formed in the side portion 262b at a position corresponding to the rib 212b. Specifically, the side portion 262b has the notch 262c at a position where the rib 212b is disposed when the light source cover 260 is attached to the main body portion 210. Therefore, the rib 212b and the side portion 262b do not come into contact with each other when the light source cover 260 is attached to the main body portion 210. The side portion 262b is an example of a fourth side portion, and the notch 262c is an example of a third notch.

[0086] As shown in FIG. 8 and FIG. 9, the second main body 212 has an annular side surface 212a protruding from the inner periphery of the second main body 212 toward the second cover 262 (the side opposite to the installation surface), and a rib 212b protruding toward the second cover 262 at a position of the side surface 212a where the first connecting portion 213 is connected. The rib 212b has a notch 212c through which the wiring 235 is inserted. The notch 212c is, for example, an L-shaped notch, but is not limited to this as long as the shape allows the wiring 235 to be hooked. The rib 212b is an example of a third side surface. The notch 212c is an example of a third notch. The side surface 212a is, for example, formed to protrude from the inner periphery of the flat portion 262a.

[0087] The notch 262c may be of a size such that the wiring 235 is not pinched by the second cover part 262 and the second main body part 212 (specifically, the side surface parts 262b and 212a) when the wiring 235 is out of the L-shaped notch 212c (for example, when the wiring 235 rides up on the rib 212b). The notch 262c may be provided, for example, such that the distance between the ribs 212b and 262b is greater than the total value of the widths W of the wirings 235. In this embodiment, since there are two wirings 235, the distance between the rib 212b and the second cover part 262 may be greater than the total value of the widths W of the two wirings 235. For example, a distance D4 between an upper surface 212b1 (the surface on the installation surface side) of the rib 212b and a lower surface 262b1 of the side portion 262b on which the notch 262c is formed may be greater than the total value of the width W of the two wirings 235. Note that the notch 262c is, for example, a rectangular notch, but is not limited thereto.

[0088] 2 to 4 includes a first main body 211, a circuit section 230, a circuit cover 240, a fixing plate 250, and a first cover section 261. The light emitting section 200b includes a second main body 212, a light emitting module 220, and a second cover section 262. The coupling section 200c includes a first coupling section 213 and a second coupling section 263. The opening 200d is formed by the openings 213a and 263a.

[0089] As described above, the light source unit 200 has the power supply unit 200a and the light emitting unit 200b disposed apart from each other. This configuration can prevent the heat generated by the power supply unit 200a and the light emitting unit 200b from interfering with each other. For example, it can prevent the circuit components 232b in the power supply unit 200a from being destroyed by the power supply unit 200a being further heated by the heat from the light emitting unit 200b.

[0090] [3. Installation Instructions] Next, the attachment of the light source unit 200 to the fixture body 100 will be described with reference to Fig. 10. Fig. 10 is a cross-sectional view of the light source unit 200 according to the present embodiment. Although not shown, it is assumed that the fixture body 100 is disposed on the negative Z-axis side of the light source unit 200.

[0091] 10, when attaching the light source unit 200 to the fixture body 100, the user can visually confirm the electrode pin 231 through the opening 200d. This can be realized by arranging the light emitting section 200b closer to the fixture body 100 than the power supply section 200a (e.g., the electrode pin 231) and by making the opening 200d large enough for a person's finger to enter. This allows the user to attach the light source unit 200 to the fixture body 100 while visually confirming the positions of the electrode pin 231 and the opening 111 of the socket 110, making it easy to perform the attachment work.

[0092] [4. Effects, etc.] As described above, the light source unit 200 according to this embodiment is a light source unit 200 that can be attached and detached to the fixture body 100, and includes a base 230a for receiving power supplied from the fixture body 100, a power supply unit 232 connected to the base 230a, a circuit case 233 that houses the power supply unit 232, a frame-shaped light-emitting module 220 (an example of a first light-emitting module) that surrounds the circuit case 233 and emits light using power from the power supply unit 232, and a light source cover 260 (an example of a cover) having a first cover part 261 that covers the circuit case 233, a frame-shaped second cover part 262 that is arranged at a distance from the first cover part 261 and covers the light-emitting module 220, and a second connecting part 263 (an example of a third cover part) that connects the first cover part 261 and the second cover part 262. Furthermore, when the light source unit 200 is attached to the fixture body 100, the light emitting module 220 is located on the fixture body 100 side of the circuit case 233, and the first cover part 261, the second cover part 262, and the second connecting part 263 are integrally molded.

[0093] As a result, the first cover part 261 covering the circuit case 233 and the second cover part 262 covering the light emitting module 220 are integrally formed, so that the light source cover 260 can be easily attached to the circuit case 233 and the light emitting module 220. For example, compared to a case where the first cover part 261 and the second cover part 262 are separate, the light source cover 260 can be easily attached to the circuit case 233 and the light emitting module 220. In addition, since the first cover part 261 and the second cover part 262 are separated from each other and connected by the second connecting part 263, an opening 200d (space) is formed between the first cover part 261 and the second cover part 262. For example, a worker can insert his / her finger into the opening 200d to hold the light source cover 260. As a result, the light source cover 260 can be easily handled, improving work efficiency.

[0094] Also, when replacing the light source unit 200 attached to the fixture body 100, the light source unit 200 can be easily attached and detached by inserting a finger into the opening 200d. Furthermore, since the worker can visually check the base 230a (e.g., the electrode pin 231) through the opening 200d, the light source unit 200 can be easily attached to the socket 110 of the fixture body 100.

[0095] Therefore, according to the light source unit 200 of this embodiment, workability during assembly and replacement is improved.

[0096] The circuit case 233 has a bottomed cylindrical first case part 233a in which an opening 233a3 is formed and through which one or more wirings 235 for supplying power from the power supply unit 232 to the light emitting module 220 are inserted, and a bottom surface part 233b1 (an example of a flange part) protruding in a flange shape from the cylindrical part of the first case part 233a and having a holding part 234 (an example of a first holding part) for holding the one or more wirings 235. The light source unit 200 further includes a circuit cover 240 having a bottom surface part 241 (an example of a first bottom surface part) and a side surface part 242 (an example of a first side surface part) protruding from the outer periphery of the bottom surface part 241 toward the circuit case 233 side, and the side surface part 242 is placed on the bottom surface part 233b1 to cover the opening 233a3. The side surface portion 242 has a notch 243 (an example of a first notch) at a position where the holding portion 234 is disposed when the circuit cover 240 is placed on the bottom surface portion 233b1. The notch 243 is provided so that the distance between the holding portion 234 and the side surface portion 242 (for example, distances D1 and D2) is greater than the total value of the widths W of the one or more wirings 235.

[0097] As a result, even if the wiring 235 is removed from the holding portion 234 when the circuit cover 240 is placed on the bottom surface portion 233b1, it is possible to prevent the wiring 235 from being pinched between the circuit cover 240 and the circuit case 233. Taking FIG. 6 as an example, even if the two wirings 235 are overlapped on the upper surface 234a1 of the rib 234a, it is possible to prevent the wiring 235 from being pinched between the circuit cover 240 and the circuit case 233. Therefore, it is possible to prevent insulation failure caused by the wiring 235 being pinched during assembly of the light source unit 200, etc. Thus, workability during assembly is improved.

[0098] The light source unit 200 further includes a main body 210 having a first main body 211 to which the circuit case 233 is detachably attached, and a second main body 212 to which the light emitting module 220 is attached, the second main body 212 being disposed apart from the first main body 211, and a plate-shaped fixing plate 250 for fixing the circuit case 233 to the first main body 211. The first main body 211 has a bottom surface 211c (an example of a second bottom surface) having a holding portion 214 (an example of a second holding portion) for holding one or more wirings 235, and a side surface 211d1 (an example of a second side surface) on which the fixing plate 250 is placed, the side surface 211d1 being provided protruding from the bottom surface 211c. The side surface 211d1 also has a second notch 211g (an example of a second notch) at a position where the holding portion 214 is placed when the fixing plate 250 is placed on the side surface 211d1. The second cutout portion 211g is provided so that the distance D3 between the side surface portion 211d1 and the fixing plate 250 is greater than the total value of the widths W of the one or more wirings 235.

[0099] As a result, even if the wiring 235 is detached from the holding portion 214 when the fixing plate 250 is placed on the side surface portion 211d1, it is possible to prevent the wiring 235 from being pinched between the fixing plate 250 and the side surface portion 211d1. Taking FIG. 7 as an example, even if the two wirings 235 are overlapped on the upper surface 211h, it is possible to prevent the wiring 235 from being pinched between the fixing plate 250 and the side surface portion 211d1. Therefore, it is possible to further prevent insulation failure caused by pinching of the wiring 235 during assembly of the light source unit 200. Therefore, the workability during assembly is further improved.

[0100] The main body 210 has a first coupling portion 213 (an example of a coupling portion) that couples the circuit case 233 and the light emitting module 220, the first coupling portion 213 being covered by the second coupling portion 263. The second main body 212 has a rib 212b (an example of a third side surface portion) that protrudes toward the second cover portion 262 at a position of the inner periphery where the first coupling portion 213 is coupled, the rib 212b having a notch 212c (an example of a third notch) through which one or more wirings 235 are inserted. The second cover portion 262 has a side surface portion 262b (an example of a fourth side surface portion) that protrudes from the inner periphery toward the second main body 212 and has a notch 262c (an example of a fourth notch) formed at the position where the rib 212b is disposed. The notch 262c is provided so that the distance D4 between the rib 212b and the side surface portion 262b is greater than the total value of the widths W of the one or more wirings 235.

[0101] As a result, even if the wiring 235 is removed from the notch 212c when the light source cover 260 is attached to the main body 210, it is possible to prevent the wiring 235 from being pinched between the light source cover 260 and the main body 210. Taking FIG. 8 as an example, even if the two wirings 235 are overlapped on the upper surface 211a1 of the rib 212b, it is possible to prevent the wiring 235 from being pinched between the light source cover 260 and the main body 210. Therefore, it is possible to further prevent insulation failure caused by pinching of the wiring 235 during assembly of the light source unit 200. Therefore, the workability during assembly is further improved.

[0102] Moreover, the first cover portion 261 and the second cover portion 262 have flat portions 261a and 262a, respectively.

[0103] As a result, when the fixture cover 300 that covers the light source unit 200 is provided, the distance between the light source unit 200 and the fixture cover 300 can be increased compared to when the first cover part 261 and the second cover part 262 are curved. Therefore, the light emitted from the fixture cover 300 becomes more uniform. Also, the fixture cover 300 can be made smaller in size.

[0104] Moreover, the light emitting module 220 is disposed closer to the fixture body 100 than the base 230a.

[0105] This allows the light emitting module 220 to be disposed at a position close to the installation surface, thereby improving the lighting effect. For example, the light emitting module 220 can irradiate the illumination surface with light with little unevenness in brightness.

[0106] As described above, the lighting fixture 10 according to the present embodiment includes the above-described light source unit 200 and fixture body 100 to which light source unit 200 is detachably attached.

[0107] This makes it possible to realize lighting fixture 10 including light source unit 200 with improved workability during assembly and replacement.

[0108] (Embodiment 2) Hereinafter, a lighting fixture including a light source unit 400 according to the present embodiment will be described with reference to Fig. 11. Fig. 11 is an exploded perspective view showing the configuration of the light source unit 400 according to the present embodiment. In the following description, differences from the first embodiment will be mainly described, and the same components as those in the first embodiment will be denoted by the same reference numerals, and description thereof will be omitted or simplified.

[0109] As shown in FIG. 11, the light source unit 400 according to the present embodiment includes a light emitting module 500 instead of the fixing plate 250 included in the light source unit 200 according to the first embodiment.

[0110] The light emitting module 500 is, for example, a light source for emitting white light. The white light is, for example, light with a color temperature (correlated color temperature) of 2600K to 7100K. The light emitting module 500 is disposed between the circuit cover 240 and the first cover part 261. Note that, when the light source unit 400 does not include the circuit cover 240, the light emitting module 500 is disposed between the circuit case 233 and the first cover part 261. The light emitting module 500 has a substrate 510 and a plurality of light emitting elements 520 mounted on the substrate 510. The light emitting module 500 is an example of a second light emitting module.

[0111] The substrate 510 is a printed wiring board for mounting a plurality of light emitting elements 520, and is formed in a circular shape. The substrate 510 also functions as a fixing plate for fixing the circuit section 230 to the main body section 210. The substrate 510 is disposed in contact with the main body section 210. Specifically, the substrate 510 is disposed in contact with the side surface section 211d1. More specifically, the substrate 510 is fixed to the main body section 210 by fitting a notch 511 of the substrate 510 into a rib 211d2 protruding from a part of the side surface section 211d1 to the Z-axis positive side. The substrate 510 is then fastened to the circuit section 230 (specifically, the circuit case 233) by a fastening member 270 (for example, a screw) via a through hole 512.

[0112] This makes it possible to more firmly fix the circuit section 230 fixed to the main body section 210 by the claw sections 233c and the locking sections 213c.

[0113] The substrate 510 may be, for example, a resin substrate based on resin, a metal-based substrate based on metal, a ceramic substrate made of ceramic, etc. The substrate 510 may be made of, for example, aluminum.

[0114] The plurality of light emitting elements 520 are disposed on the substrate 510. In this embodiment, the plurality of light emitting elements 520 are disposed in a circular ring shape. The number and arrangement of the light emitting elements 520 are not limited to this. It is sufficient that one or more light emitting elements 520 are mounted. The configuration of the light emitting element 520 may be the same as that of the light emitting element 222.

[0115] Note that, instead of the light emitting module 500, 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 an example in which the light emitting module 500 emits white light has been described, the light emission color is not limited to this. For example, the light emitting module 500 may emit light of a different color temperature than the light emitting module 220. Also, the light emitting module 500 may emit light of a different color than the light emitting module 220.

[0116] With the light source unit 400 attached to the fixture body 100, the light emitting module 500 is disposed on the opposite side to the fixture body 100 (that is, on the irradiation surface side) with respect to the light emitting module 220.

[0117] As described above, the light source unit 400 according to the present embodiment includes the light emitting module 500 (an example of a second light emitting module) disposed between the circuit case 233 and the first cover portion 261.

[0118] As a result, the light emitted from the light source unit 400 has a more uniform brightness, and the irradiation surface can be illuminated more uniformly.

[0119] (Other embodiments) Although the light source unit and the lighting fixture have been described above based on the embodiment, the present invention is not limited to this embodiment. As long as it does not deviate from the spirit of the present invention, various modifications conceivable by a person skilled in the art to this embodiment and forms constructed by combining components in different embodiments are also included within the scope of the present invention.

[0120] For example, in the above embodiment, the second body portion 212 is disposed closer to the instrument body 100 than the first body portion 211, but the present invention is not limited to this. The second body portion 212 may be disposed on the same plane as the first body portion 211.

[0121] In the above embodiment, the holding portions 214 and 234 for fixing the wiring 235 are formed continuously from the opening 233a3 to the light-emitting module 220, but the present invention is not limited to this. At least one of the holding portions 214 and 234 may have a convex portion formed intermittently. [Explanation of symbols]

[0122] 10 Lighting equipment 100 Equipment body 200, 400 light source units 210 Main body 211 First body part 211c Bottom part (2nd bottom part) 211d1 Side part (second side part) 211g Second cutout part (Second cutout) 212 Second body part 212b Rib (third side part) 212c Notch (third notch) 213 1st connection part 214 Holding part (second holding part) 220, 500 Light Emitting Module 230a Base 232 Power supply unit 233 Circuit Case 233a First case part (case part) 233a3 opening 233b1 Bottom part (flange part) 234 Holding part (1st holding part) 235 Wiring 240 Circuit Cover 241 Bottom part (1st bottom part) 242 Side part (first side part) 243 Notch (First Notch) 250 Fixed plate 260 Light source cover (cover) 261 First cover part 261a, 262a flat part 262 Second cover part 262b Side part (4th side part) 263c Notch (third notch) 263 Second connection part (third cover part) W width D1~D4 Distance

Claims

1. A light source unit that can be detachably attached to a fixture body, a base for receiving power supplied from the device body; A power supply unit connected to the base; a circuit case that houses the power supply unit; a frame-shaped light-emitting module surrounding the circuit case, the light-emitting module emitting light by power from the power supply unit; a light-transmitting cover including a first cover portion that covers the circuit case, a frame-shaped second cover portion that is spaced apart from the first cover portion and covers the light-emitting module, and a third cover portion that connects the first cover portion and the second cover portion; the light source unit has an opening through which a person's finger can be inserted, The first cover portion is located on the opposite side of the device body from the second cover portion and the third cover portion, The third cover portion extends in a diagonal direction with respect to a direction in which the first cover portion and the appliance body are arranged. Light source unit.

2. The opening is formed in two or more. The light source unit according to claim 1 .

3. The number of the openings is three. The light source unit according to claim 2 .

4. The size of the opening is large enough to accommodate three or more test fingers as specified in JIS C 0920. The light source unit according to any one of claims 1 to 3.

5. The size of the opening is large enough to accommodate four of the test fingers. The light source unit according to claim 4 .

6. The shape of the opening is arch-shaped when viewed from the optical axis of the light source unit. The light source unit according to any one of claims 1 to 5.

7. an electrode pin that is provided protruding from the base toward the device body and is visible through the opening; The light source unit according to any one of claims 1 to 6.

8. The two or more openings are disposed between the first cover portion and the second cover portion when viewed from the optical axis of the light source unit. The light source unit according to claim 2 or 3.

9. The two or more openings are formed to be surrounded by the first cover portion, the second cover portion, and the third cover portion when viewed from the optical axis of the light source unit. The light source unit according to claim 8 .

10. The two or more openings are arranged to surround the first cover portion when viewed from the optical axis of the light source unit.

10. A light source unit according to claim 2, 3, 8 or 9.

11. The light emitting module is disposed closer to the device body than the base. The light source unit according to any one of claims 1 to 10.

12. A light source unit according to any one of claims 1 to 11, The instrument body includes Lighting fixtures.

Images