JP2023174908A - Light source unit and luminaire - Google Patents

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

The present invention relates to a light source unit that is detachably attached to a fixture body, and a lighting fixture that includes the light source unit.

Conventionally, a light source unit using a so-called GX53 type base equipped with a pair of electrode pins is known. This light source unit simultaneously achieves support and electrical connection of the light source unit to the socket by inserting an electrode pin into a socket of a device body attached to a building material or the like.

The light source unit includes a lighting circuit for power supply and a light source that emits light using the power from the lighting circuit. Patent Document 1 discloses a light source unit in which a lighting circuit and a light source are arranged separately.

Japanese Patent Application Publication No. 2016-048687

Incidentally, it is desired that the light source unit has improved workability during assembly and replacement.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a light source unit and a lighting fixture with improved workability during assembly and replacement.

In order to achieve the above object, a light source unit according to one aspect of the present invention is a light source unit that is detachably attached to a device main body, and includes a cap for receiving electric power supplied from the device main body, and a base for receiving electric power supplied from the device main body. a power supply unit connected to the power supply unit, a circuit case accommodating the power supply unit, a frame-shaped first light emitting module surrounding the circuit case, the first light emitting module emitting light using power from the power supply unit; a first cover part that covers a circuit case; a frame-shaped second cover part that covers the first light emitting module and is arranged apart from the first cover part; and the first cover part and the second cover part. a translucent cover having a third cover portion connecting the first light emitting module, and the first light emitting module is located closer to the instrument main body than the circuit case when the light source unit is attached to the instrument main body. The first cover part, the second cover part, and the third cover part are integrally molded.

In order to achieve the above object, a light source unit according to one aspect of the present invention is a light source unit that is detachably attached to a device main body, and includes a cap for receiving electric power supplied from the device main body, and a base for receiving electric power supplied from the device main body. a power supply unit connected to the power supply unit, a circuit case accommodating the power supply unit, a frame-shaped light emitting module surrounding the circuit case, the light emitting module emitting light using power from the power supply unit, and covering the circuit case. a first cover part, a frame-shaped second cover part disposed apart from the first cover part and covering the light emitting module, and a third cover connecting the first cover part and the second cover part. and a translucent cover having a section, and the light source unit has an opening into which a person's finger can be inserted.

Moreover, in order to achieve the said objective, the lighting fixture concerning one aspect of this invention is equipped with the said light source unit and the said fixture main body.

According to one aspect of the present invention, it is possible to provide a light source unit and a lighting fixture with improved workability during assembly and replacement.

1 is a perspective view showing the appearance of a lighting fixture according to Embodiment 1. FIG. 1 is an exploded perspective view showing the configuration of a lighting fixture according to Embodiment 1. FIG. FIG. 2 is a perspective view showing the appearance of the light source unit according to Embodiment 1 on the side opposite to the appliance main body. FIG. 2 is a perspective view showing the appearance of the light source unit according to Embodiment 1 on the appliance main body side. 1 is an exploded perspective view showing the configuration of a light source unit according to Embodiment 1. FIG. FIG. 3 is a diagram for explaining a structure for preventing wires from being caught in the circuit cover and circuit case according to the first embodiment. FIG. 3 is a diagram for explaining a structure for preventing wires from being caught in the first main body portion and the fixing plate according to the first embodiment. FIG. 6 is a diagram for explaining a structure for preventing wires from being caught in the light source cover and the second main body according to the first embodiment. FIG. 3 is a diagram showing how wiring is arranged on the board according to the first embodiment. 1 is a cross-sectional view of a light source unit according to Embodiment 1. FIG. FIG. 3 is an exploded perspective view showing the configuration of a light source unit according to Embodiment 2. FIG.

Below, a light source unit and a lighting fixture according to an embodiment of the present invention will be described in detail using the drawings. Note that all of the embodiments described below are specific examples 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 do not limit the present invention. Therefore, among the constituent elements in the following embodiments, constituent elements that are not described in the independent claims will be described as arbitrary constituent elements.

Furthermore, each figure is a schematic diagram and is not necessarily strictly illustrated. Therefore, for example, the scales and the like in each figure do not necessarily match.

Further, coordinate axes may be shown in the drawings used for explanation in the following embodiments. The negative side of the Z-axis is the installation surface side (for example, the ceiling side), and the positive side of the Z-axis is the opposite side to the installation surface, for example, represents the irradiation surface side. Further, the X-axis direction and the Y-axis direction are directions that are orthogonal 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 appliance body is installed. For example, in the following embodiments, "planar view" means viewing from the Z-axis direction.

In addition, in this specification, terms that indicate relationships between elements such as parallel, terms that indicate the shape of elements such as annular and arched, and numerical values and numerical ranges have only strict meanings. This is not an expressive expression, but an expression that means that it includes a substantially equivalent range, for example, a difference of several percent.

(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. 1 to 10.

[1. Configuration of lighting equipment]
FIG. 1 is a perspective view showing the appearance of a lighting fixture 10 according to the present embodiment. FIG. 2 is an exploded perspective view showing the configuration of lighting fixture 10 according to this embodiment.

As shown in FIGS. 1 and 2, the lighting fixture 10 according to the present embodiment includes a fixture body 100, a light source unit 200, and a fixture cover 300 (for example, a glove). The lighting fixture 10 is installed on an installation surface such as construction material (for example, a ceiling 600 or a wall). The lighting fixture 10 is installed in a location exposed to the external environment, such as a ceiling 600 or a wall of a common hallway in an apartment building.

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

The instrument 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 by rotating the light source unit 200 with respect to the socket 110 with the electrode pin 231 (see FIG. 4) of the light source unit 200 inserted into the opening 111, the socket 110 is opened. A light source unit 200 is attached to 110.

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

The light source unit 200 receives power from the socket 110 and emits light. The light source unit 200 is detachably attached to the socket 110. A power supply section 200a in which a power supply unit 232 (see FIG. 5) and a base 230a (see FIG. 4) are arranged, a light emitting section 200b surrounding the power supply section 200a, and a connecting section 200c connecting the power supply section 200a and the light emitting section 200b. have Further, the light source unit 200 has an opening 200d formed therein. In the light source unit 200 according to the present embodiment, a power source section 200a and a light emitting section 200b are arranged apart from each other. A wiring 235 (see FIG. 5) for supplying power from the power supply section 200a to the light emitting section 200b is arranged inside at least one connection section 200c. Details of the light source unit 200 will be described later.

The instrument cover 300 is formed of a translucent member and transmits the light emitted from the light source unit 200. The instrument cover 300 is detachably attached to the instrument body 100 so as to cover the light source unit 200. The instrument cover 300 may have a function of diffusing the light emitted from the light source unit 200. For example, by attaching a resin containing a light diffusing material (fine particles) such as silica or calcium carbonate, or a white pigment to the inner or outer surface of the instrument cover 300 made of transparent glass or resin, milky white light can be produced. A diffusion membrane is formed on the instrument cover 300. Moreover, the instrument cover 300 itself may be molded using a resin material or the like in which a light diffusing material is dispersed.

[2. Configuration of light source unit]
Next, the light source unit 200 will be further explained with reference to FIGS. 3 to 5. FIG. 3 is a perspective view showing the appearance of the light source unit 200 according to the present embodiment on the side opposite to the instrument main body 100. FIG. 4 is a perspective view showing the external appearance of the light source unit 200 on the instrument main body 100 side according to the present embodiment. FIG. 5 is an exploded perspective view showing the configuration of the light source unit 200 according to this embodiment.

As shown in FIGS. 3 to 5, the light source unit 200 includes a main body 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 glove). have

[2-1. Main body]
The main body section 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 includes a first main body 211 disposed at the center and a second main body 212 surrounding the first main body 211 in a plan view. The first body part 212 has a second main body part 212 that is spaced apart from the second main body part 212 , and a first connecting part 213 that connects the first main body part 211 and the second main body part 212 .

The first main body portion 211 is a portion for supporting the circuit portion 230. The first main body part 211 has an opening 211a formed in the center for arranging the circuit part 230. The first main body part 211 also includes a locking part 211b, a bottom part 211c, a side part 211d1 for supporting the fixed plate 250, which is provided to protrude from the bottom part 211c, and a part of the side part 211d1. It has a rib 211d2 that protrudes toward the Z-axis plus side. The first main body portion 211 has an annular shape (for example, an annular shape) in plan view. The first main body portion 211 is covered by a first cover portion 261 of a light source cover 260, which will be described later. In addition, the bottom surface part 211c is an example of a 2nd bottom surface part, and the side surface part 211d1 is an example of a 2nd side surface part.

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

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

In this embodiment, the first main body part 211 and the second main body part 212 are located at different positions in the Z-axis direction, so the first connecting part 213 extends at a predetermined angle with respect to the Z-axis. The predetermined angle is greater than 0° and smaller than 90°. That is, the first connecting portion 213 extends diagonally.

An opening 213a is formed in the main body portion 210 formed in this manner. In this embodiment, three openings 213a are formed. The opening 213a is formed by the first main body part 211 and the second main body part 212 being separated from each other, and the first connecting part 213 being arranged apart from each other. The opening 213a may be large enough to fit a human finger, for example. Thereby, for example, when holding the light source unit 200, it is possible to grasp the first main body part 211 by inserting a finger into the opening 213a. Therefore, workability when attaching the light source unit 200 to the instrument main body 100 is improved. Note that the size large enough to fit a finger is, for example, a size large enough to fit a test finger defined by JIS C 0920 (IEC60529). For example, a size large enough to fit a finger is, for example, a size large enough to fit three or four of the above-mentioned test fingers. For example, the size of the opening 213a in plan view is, for example, a radial length of about 2 cm to 2.5 cm, and a circumferential length of about 8 cm to 10 cm. Note that the circumferential length is, for example, the median of the circumferential lengths of the arch-shaped opening 213a.

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 the groove 214b (see FIG. 7) between the ribs of the protrusion. The holding portion 214 may be formed in at least one first connecting portion 213 .

Further, a mark 213b is formed on the first connecting portion 213 on the surface facing the light source cover 260 (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 pins 231 in plan view. The same direction means a direction relative to the center of the light source unit 200 in plan view. In this embodiment, one of the power pins 231 is arranged on the positive side of the X-axis with respect to the center of the light source unit 200, as shown in FIG. 4, and the mark 213b is arranged as shown in FIG. , are arranged on the X-axis plus side with respect to the center of the light source unit 200. In this case, the X-axis plus direction is the same direction.

Note that 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 pins 231, but is formed on at least one first connecting portion. 213 is sufficient. For example, the mark 213b may be formed on the first connecting portion 213 where the holding portion 214 is not formed.

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

In this embodiment, the main body part 210 and the circuit part 230 are made as separate members, but the invention is not limited to this depending on the characteristic specifications of the light source unit 200, and the main body part 210 and the circuit part 230 are integrally molded. But that's fine.

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

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

As the substrate 221, for example, a resin substrate based on resin, a metal base substrate based on metal, a ceramic substrate made of ceramic, or the like can be used. Further, the substrate 221 is not limited to a rigid substrate, but may be a flexible substrate.

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 light emitting element rows are annular. Further, in each row, the plurality of light emitting elements 222 are arranged at equal intervals in the circumferential direction of the substrate 221.

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 includes a package (container) made of white resin and having a recess, an LED chip that is primarily mounted on the bottom of the recess of the package, and a sealing member sealed within the recess of the package. are doing. 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 blue light from a blue LED chip as excitation light.

In this way, 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. White light is generated by mixing the emitted yellow light and the blue light not absorbed by the yellow phosphor. In this way, white light is emitted from each of the light emitting elements 222.

The light emitting module 220 emits light using electrodes from the power supply unit 232. The light emitting module 220 is an example of a first light emitting module.

Note that the light source of the lighting fixture 10 is not particularly limited. For example, instead of the light emitting module 220, a light emitting module configured using a semiconductor light emitting element such as a semiconductor laser, an organic EL element (OLED), an inorganic EL element, or another solid state light emitting element may be used. Further, although an example has been described in which the light emitting module 220 emits white light, the emitted light color is not limited to this.

The light emitting module 220 is arranged at a position closer to the instrument body 100 (that is, the installation surface) than the circuit section 230 (for example, the circuit case 233) with the light source unit 200 attached to the instrument body 100. For example, the light emitting module 220 may be placed closer to the instrument body 100 than the base 230a with the light source unit 200 attached to the instrument body 100. By arranging the light emitting module 220 on the side of the appliance main body 100, the lighting effect can be enhanced. Note that the light emitting module 220 being disposed closer to the instrument body 100 than the circuit section 230 means that at least a portion of the light emitting module 220 is disposed closer to the instrument body 100 than the circuit section 230 is.

[2-3. Circuit section, circuit cover, and fixing plate]
The circuit section 230 generates electric power for the light source unit 200 to emit light, and supplies it to the light source unit 200. The circuit section 230 includes an electrode pin 231, a power supply unit 232, and a circuit case 233. Further, 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 electric power supplied from the instrument main body 100.

The electrode pin 231 is provided to protrude from the base 230a and is a pin for receiving power from the instrument body 100 to cause the light source unit 200 to emit light. In this embodiment, the electrode pin 231 is composed of a small-diameter portion that is formed to protrude from the base 230a and a large-diameter portion that is arranged at the tip of the small-diameter portion and has a larger diameter than the small-diameter portion. The cap 230a is, for example, a GX53 type cap.

Note that the cap 230a is not limited to a GX-shaped cap, and may be, for example, an E-shaped cap, a hook-sealing cap, or the like. Furthermore, the number of electrode pins 231 is not limited to two.

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

The board 232a is a printed wiring board on which a plurality of circuit components 232b are mounted. The board 232a is housed in the circuit case 233, for example, with the plurality of circuit components 232b facing the opposite side to the installation surface.

Each of the plurality of circuit components 232b is a power supply circuit component that constitutes a circuit for generating electric power for causing the light source unit 200 to emit light. The plurality of circuit components 232b convert AC power supplied via wiring from the above-mentioned commercial power source into DC power. The light emitting module 220 emits light by supplying the DC power generated by the plurality of circuit components 232b to the light emitting module 220.

Although each of the plurality of circuit components 232b is mounted on the surface of the substrate 232a opposite to the installation surface, the present invention is not limited thereto. Note that from the viewpoint of suppressing the wiring 235 from being caught between the board 232a and the circuit case 233, it is preferable that each of the plurality of circuit components 232b is mounted on the surface of the board 232a opposite to the installation surface. .

Note that the plurality of circuit components 232b may include not only the above-mentioned power supply circuit components but also circuit components constituting other circuits. For example, the plurality of circuit components 232b may include driving circuit components that configure a dimming circuit or a booster circuit, or may include communication circuit components (communication modules) that configure a communication circuit. Good too.

The circuit case 233 includes a first case portion 233a having a bottomed cylindrical shape and a side surface portion of the first case portion 233a. The second case part 233b has a bottom part 233b1 that protrudes like a flange from 233a2 (for example, the tip of the side part 233a2), and a side part 233b2 that protrudes from the periphery of the bottom part 233b1 to the side opposite to the installation surface. The planar view shape of the bottom surface portion 233a1 is, for example, circular, and the planar view shape of the bottom surface portion 233b1 is, for example, an annular shape. Further, a power supply unit 232 is housed within the circuit case 233. Note that the bottom portion 233b1 is an example of a flange portion.

The first case portion 233a is formed with an opening 233a3 through which wiring 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, which will be described later. Further, the electrode pin 231 is provided to protrude from the bottom surface portion 233b1, for example. The first case portion 233a is an example of a case portion.

Furthermore, a claw portion 233c that is hooked onto and attached to a locking portion 211b provided on the first main body portion 211 is provided on the side surface portion 233b2 of the second case portion 233b. In other words, the circuit case 233 is detachably attached to the first main body portion 211. Thereby, for example, the socket 110 can be replaced as appropriate depending on the type of socket 110 (GX53 type socket, E type socket, etc.) of the instrument main body 100 to be attached. Note that the shape of the circuit case 233 is not limited to the above.

The circuit case 233 is made of an insulating material such as resin, for example. The circuit case 233 is made of a resin different from that of the main body portion 210, for example. The circuit case 233 is preferably formed of PBT, for example, from the viewpoint of improving the heat resistance of the circuit case 233. Note that at least a portion of the circuit case 233 may be formed of metal. Thereby, the heat generated in the board 232a and the plurality of circuit components 232b can be efficiently dissipated.

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 part 241 and a side part 242 protruding from the periphery (outer peripheral part) of the bottom part 241 toward the installation surface. The bottom surface portion 241 is larger than the bottom surface portion 233a1 and smaller than the bottom surface portion 233b1 in plan view. Therefore, the circuit cover 240 covers the opening 233a3 by being placed on the bottom surface portion 233b1. In addition, the bottom surface part 241 is an example of a 1st bottom surface part, and the side surface part 242 is an example of a 1st side surface part.

The circuit cover 240 is made of an insulating material such as resin, for example. The circuit cover 240 is made of the same resin as the circuit case 233, for example. The circuit cover 240 is preferably formed of PBT, for example, from the viewpoint of improving the heat resistance of the circuit cover 240.

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

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 part 234 includes ribs 234a of protrusions extending from the opening 233a3 (see FIG. 5) toward the first connecting part 213 (see FIG. 5), and a groove 234b sandwiched between the ribs 234a. and has. 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. Thereby, the wiring 235 can be fixed. Note that the holding section 234 is an example of a first holding section.

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 a notch 243 at a position where the holding portion 234 is placed 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.

The notch 243 is preferably large enough to prevent the wiring 235 from getting caught in the circuit case 233 and the circuit cover 240 when the wiring 235 rides on the holding part 234 . The cutout 243 may be provided, for example, so that the distance between the holding portion 234 (for example, the rib 234a) and the side surface portion 242 is larger than the total width W (for example, diameter) of each of the wirings 235. In this embodiment, since there are two wires 235, the distance between the rib 234a and the side surface portion 242 of the notch 243 is preferably larger than the total width W of the two wires 235. For example, the distance D1 between the upper surface 234a1 of the rib 234a (the surface opposite to the installation surface) and the lower surface 244 of the side surface 242 in which the cutout 243 is formed, and the distance D1 between the upper surface 234a1 of the rib 234a (the surface opposite to the installation surface) and the cutout between the side surface 234a2 of the outermost rib 234a and Each of the distances D2 between the side surface 242 and the side surface 245 in which the notch 243 is formed is preferably larger than the sum of the widths W of the two wirings 235.

The cutout 243 is, for example, a rectangular cutout, but is not limited thereto. Moreover, the notch 243 is an example of a first notch.

Referring again to FIG. 5, the fixing plate 250 is a plate-shaped member for fixing the circuit section 230 to the main body section 210. The fixing plate 250 is placed in contact with the main body portion 210 . Specifically, the fixing plate 250 has a circular shape in plan view, and is disposed in contact with an annular side surface portion 211d1 that protrudes from the first main body portion 211 to the side opposite to the installation surface. More specifically, the fixing plate 250 is fixed to the main body part 210 by fitting the notch 251 of the fixing plate 250 into the rib 211d2 that protrudes from a part of the side part 211d1 toward the Z-axis positive side. Ru. 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) through the through hole 252.

Thereby, the circuit part 230 fixed to the main body part 210 by the claw part 233c and the locking part 211b can be more firmly fixed to the main body part 210.

The fixed plate 250 is made of metal, for example. The fixed plate 250 is made of aluminum, for example. Note that the fixed plate 250 may be formed of resin.

Here, the engagement between the fixing plate 250 and the main body part 210 (specifically, the first main body part 211) in the wiring 235 will be explained with reference to FIG. 7. FIG. 7 is a diagram for explaining a structure for preventing the wiring 235 from being caught in the first main body portion 211 and the fixing 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 connecting portion 213, and the fixing plate 250.

As shown in FIG. 7, a holding part 214 for holding the wiring 235 is formed in the first main body part 211 and the first connecting part 213. Specifically, the holding portion 214 includes ribs 214a of protrusions extending from the first body portion 211 (for example, the bottom surface portion 211c) toward the second body portion 212, and a groove 214b sandwiched between the ribs 214a. and has. In this embodiment, three ribs 214a are provided. The groove 214b extends from the first body part 211 toward the second body part 212. A wiring 235 is arranged in the groove 214b. One wiring 235 is arranged in one groove 214b. Thereby, the wiring 235 can be fixed. Holding section 214 is an example of a second holding section.

Furthermore, 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 placed when the fixing plate 250 is placed on the side surface portion 211d1. The notch 211e includes a first notch 211f provided at a position where the holding portion 214 is formed, and a width W1 of the first notch 211f, which is provided closer to the fixing plate 250 than the first notch 211f. 211g of 2nd notch parts which have larger width W2. Thereby, the holding part 214 and the fixing plate 250 do not come into contact with each other while the fixing plate 250 is placed on the side surface portion 211d1.

The second notch 211g is configured such that the wiring 235 is caught between the top surface 211h and the bottom surface 253 of the fixing plate 250 when the wiring 235 rides on the top surface 211h formed by the second notch 211g of the side surface 211d1. The size should be small enough to prevent this from occurring. In the second notch portion 211g, for example, the distance D3 between the upper surface 211h and the lower surface 253 is preferably larger than the total value of the widths W of the respective wirings 235. In this embodiment, since there are two wires 235, the distance D3 of the second notch portion 211g is preferably larger than the sum of the widths W of the two wires 235, for example. The second notch portion 211g is, for example, a rectangular notch, but is not limited thereto. Note that the second notch portion 211g is an example of a second notch.

[2-4. Light source cover]
Referring again to FIGS. 3 and 5, the light source cover 260 is a translucent cover that covers the light emitting module 220 and the circuit section 230. The light source cover 260 includes, in plan view, a first cover part 261 that covers the circuit part 230 (for example, the circuit case 233), and a frame-shaped second part that covers the light emitting module 220 and is spaced apart from the first cover part 261. 2 cover parts 262 and a second connecting part 263 that connects the first cover part 261 and the second cover part 262. This embodiment has a structural feature in that the light source cover 260 covers the circuit section 230 that does not include the light emitting module 220.

The first cover part 261 has a circular shape in plan view and covers the circuit part 230. In this embodiment, the first cover part 261 covers the fixing plate 250 disposed on the circuit part 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 fixed plate 250.

The second cover part 262 is an annular member surrounding the first cover part 261 in plan view. In this embodiment, the second cover part 262 has an annular shape surrounding the first cover part 261 which has a circular shape. The first cover part 261 and the second cover part 262 are formed, for example, in a concentric shape. Further, in this embodiment, the second cover section 262 is arranged closer to the instrument main body 100 than the first cover section 261.

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. Further, the flat portion 262a is, for example, a surface parallel to the flat portion 261a.

The second connecting portion 263 has a rectangular shape extending from the first cover portion 261 to the second cover portion 262 in plan view. For example, three second connecting parts 263 are arranged apart from each other. That is, the second connecting portion 263 is 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.

In this embodiment, the second connecting portion 263 is arranged to cover the first connecting portion 213. Thereby, the wiring arranged in the first connecting part 213 can be protected. Note that the second connecting portion 263 is an example of a third cover portion.

Further, 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 section 200a that does not have a light emitting module becoming brighter. In other words, the light source unit 200 can uniformly illuminate the irradiation surface.

In this embodiment, since the first cover part 261 and the second cover part 262 are located at different positions 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 smaller than 90°. In other words, the second connecting portion 263 extends diagonally.

An opening 263a is formed in the light source cover 260 formed in this manner. In this embodiment, three openings 263a are formed. The opening 263a has the same position and shape as the opening 213a in plan view.

Further, a mark 263b is formed on the second connecting portion 263 on the surface opposite to the main body portion 210 (Z-axis positive side). By adjusting the direction of the light source cover 260 and attaching it to the main body part 210 so that the second connecting part 263 where the mark 263b is formed and the first connecting part 213 where the mark 213b is formed are aligned, The light source cover 260 can be easily attached to the main body part 210. Further, since the mark 263b is formed on the light source cover 260, the user can attach the light source unit 200 to the instrument 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. can be attached, making the installation work easy.

The light source cover 260 is formed of a translucent member and transmits the light emitted from the light emitting module 220. The light source cover 260 is, for example, a resin molded product. The first cover part 261, the second cover part 262, and the second connecting part 263 that constitute the light source cover 260 are integrally molded. The light source cover 260 is made of, for example, polycarbonate.

Further, the light source cover 260 may have a function of diffusing the light emitted from the light emitting module 220. For example, by attaching a resin containing a light diffusing material (fine particles) such as silica or calcium carbonate, or a white pigment to the inner or outer surface of the light source cover 260 made of transparent glass or resin, milky white light can be produced. A diffusion film is formed on the light source cover 260. Further, the light source cover 260 itself may be molded using a resin material or the like in which a light diffusing material is dispersed. Note that the light source cover 260 is an example of a cover.

Here, how the wiring 235 extending from the board 232a to the light source unit 200 gets caught between the light source cover 260 and the second main body part 212 will be described with reference to FIGS. 8 and 9. FIG. 8 is a diagram for explaining a structure for preventing wires from being caught in the light source cover 260 and the second main body portion 212 according to the present embodiment. FIG. 9 is a diagram showing how the wiring 235 is arranged on the substrate 221 according to this embodiment. Note that FIG. 8 shows a side surface portion 212a protruding from the inner peripheral portion of the second main body portion 212 toward the light source cover 260 side (opposite side to the installation surface), a side surface portion 262b of the second cover portion 262, and a second connecting portion. 263 is an enlarged perspective view showing only a part of 263. FIG. Further, FIG. 9 is an enlarged perspective view showing the vicinity of the connecting portion between the second main body portion 212 and the first connecting portion 213 with the light source cover 260 removed.

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

Further, as shown in FIGS. 8 and 9, the second main body part 212 has an annular side surface part 212a that protrudes from the inner peripheral part of the second main body part 212 toward the second cover part 262 side (the opposite side to the installation surface). , and a rib 212b that further protrudes toward the second cover portion 262 at a position of the side surface portion 212a where the first connecting portion 213 is connected. A notch 212c through which the wiring 235 is inserted is formed in the rib 212b. The cutout 212c is, for example, an L-shaped cutout, but is not limited to this as long as it has a shape that allows the wiring 235 to be hooked thereon. Note that the rib 212b is an example of the third side surface portion. The notch 212c is an example of a third notch. Note that the side surface portion 212a is formed, for example, to protrude from the inner peripheral portion of the flat portion 262a.

The notch 262c allows the wiring 235 to be attached to the second cover portion 262 and the second main body portion 212 (specifically It is preferable that the size is such that the side portions 262b and 212a) do not cause jamming. The cutout 262c is preferably provided, for example, so that the distance between the ribs 212b and 262b is larger than the total width W of each of the wirings 235. In this embodiment, since there are two wires 235, the distance between the rib 212b and the second cover part 262 of the notch 262c is larger than the total width W of the two wires 235, for example. Good. For example, the distance D4 between the upper surface 212b1 (installation surface side surface) of the rib 212b and the lower surface 262b1 of the side surface portion 262b in which the notch 262c is formed is preferably larger than the sum of the widths W of the two wirings 235. Note that the cutout 262c is, for example, a rectangular cutout, but is not limited thereto.

Note that the power supply section 200a shown in FIGS. 2 to 4 includes a first main body section 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 section 212, a light emitting module 220, and a second cover section 262. The connecting portion 200c includes a first connecting portion 213 and a second connecting portion 263. The opening 200d is formed by the openings 213a and 263a.

As described above, in the light source unit 200, the power source section 200a and the light emitting section 200b are arranged apart from each other. With this configuration, it is possible to suppress interference between the heat generated in each of the power supply section 200a and the light emitting section 200b. For example, it is possible to prevent the circuit component 232b in the power supply section 200a from being destroyed due to further warming of the power supply section 200a by the heat from the light emitting section 200b.

[3. Instructions for installation]
Next, how to attach the light source unit 200 to the instrument main 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 this embodiment. Although not shown, it is assumed that the instrument main body 100 is disposed on the negative side of the Z-axis from the light source unit 200.

As shown in FIG. 10, when attaching the light source unit 200 to the instrument body 100, the user can visually recognize the electrode pins 231 through the opening 200d. This can be achieved by the fact that the light emitting part 200b is arranged closer to the instrument body 100 than the power supply part 200a (for example, the electrode pin 231), and that the opening 200d is large enough to fit a human finger. I can do it. Thereby, the user can attach the light source unit 200 to the instrument main body 100 while visually checking the position of the electrode pin 231 and the position of the opening 111 of the socket 110, so that the installation work can be easily performed.

[4. Effects, etc.]
As described above, the light source unit 200 according to the present embodiment is a light source unit 200 that is detachably attached to the appliance body 100, and includes a base 230a for receiving electric power supplied from the appliance body 100, and a base 230a. A power supply unit 232 connected to the power supply unit 232 , a circuit case 233 that houses the power supply unit 232 , and a frame-shaped light emitting module 220 (an example of a first light emitting module) surrounding the circuit case 233 , which is powered by power from the power supply unit 232 . A light emitting module 220 that emits light, a first cover part 261 that covers the circuit case 233, a frame-shaped second cover part 262 that covers the light emitting module 220 and is arranged apart from the first cover part 261, and a first cover. The light source cover 260 (an example of a cover) includes a second connecting part 263 (an example of a third cover part) that connects the part 261 and the second cover part 262. The light emitting module 220 is located closer to the instrument body 100 than the circuit case 233 with the light source unit 200 attached to the instrument body 100, and includes the first cover part 261, the second cover part 262, and , the second connecting portion 263 is an integrally molded product.

As a result, the first cover part 261 that covers the circuit case 233 and the second cover part 262 that covers the light emitting module 220 are integrally formed, so the light source cover 260 can be easily attached to the circuit case 233 and the light emitting module 220. I can do it. For example, the light source cover 260 can be attached to the circuit case 233 and the light emitting module 220 more easily than when the first cover part 261 and the second cover part 262 are separate bodies. Moreover, since the first cover part 261 and the second cover part 262 are separated from each other and are connected by the second connecting part 263, the distance between the first cover part 261 and the second cover part 262 is An opening 200d (space) is formed in. For example, the operator can hold the light source cover 260 by inserting a finger into the opening 200d. This allows the light source cover 260 to be handled easily, improving work efficiency.

Further, even when replacing the light source unit 200 attached to the instrument main body 100, the light source unit 200 can be easily attached and removed by inserting a finger into the opening 200d. Furthermore, since the operator can visually recognize the base 230a (for example, the electrode pin 231) through the opening 200d, the light source unit 200 can be easily attached to the socket 110 of the instrument main body 100.

Therefore, according to the light source unit 200 according to the present embodiment, workability during assembly and replacement is improved.

Further, the circuit case 233 includes a first case portion 233a having a bottomed cylindrical shape and having an opening 233a3 through which one or more wires 235 for supplying power from the power supply unit 232 to the light emitting module 220 are inserted; A bottom surface portion 233b1 (an example of a flange portion) protruding like a flange from the cylindrical portion of the case portion 233a, and has a holding portion 234 (an example of a first holding portion) for holding one or more wirings 235. It has a portion 233b1. The light source unit 200 further includes a bottom part 241 (an example of a first bottom part) and a side part 242 (an example of a first side part) that protrudes from the outer peripheral part of the bottom part 241 toward the circuit case 233, A circuit cover 240 is provided that covers the opening 233a3 by having the side surface portion 242 placed on the bottom surface portion 233b1. The side surface portion 242 has a notch 243 (an example of a first notch) at a position where the holding portion 234 is placed when the circuit cover 240 is placed on the bottom surface portion 233b1. The cutout 243 is provided such that the distance between the holding portion 234 and the side surface portion 242 (for example, distances D1 and D2) is greater than the sum of the widths W of each of the one or more wirings 235.

This prevents the wiring 235 from getting caught between the circuit cover 240 and the circuit case 233 even if the wiring 235 is detached from the holding part 234 when the circuit cover 240 is placed on the bottom part 233b1. This can be prevented from occurring. Using FIG. 6 as an example, even if the two wires 235 overlap the upper surface 234a1 of the rib 234a, it is possible for the wires 235 to get caught between the circuit cover 240 and the circuit case 233. Can be suppressed. Therefore, when assembling the light source unit 200, it is possible to suppress the occurrence of insulation defects due to the wires 235 getting caught. Therefore, workability during assembly is improved.

Further, the light source unit 200 further includes a first main body part 211 to which a circuit case 233 is detachably attached, and a second main body part 212 to which a light emitting module 220 is attached, which is arranged apart from the first main body part 211. and a plate-shaped fixing plate 250 for fixing the circuit case 233 to the first main body 211. The first body part 211 includes a bottom part 211c (an example of a second bottom part) having a holding part 214 (an example of a second holding part) for holding one or more wires 235, and a bottom part 211c that protrudes from the bottom part 211c. It has a side surface portion 211d1 (an example of a second side surface portion) on which the fixing plate 250 is placed. Furthermore, the side surface portion 211d1 has a second notch portion 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 portion 211d1. The second notch 211g is provided such that the distance D3 between the side surface 211d1 and the fixed plate 250 is greater than the total width W of each of the one or more wirings 235.

This prevents the wiring 235 from being caught between the fixing plate 250 and the side surface 211d1 even if the wire 235 is detached from the holding part 214 when the fixing plate 250 is placed on the side surface 211d1. This can be prevented from occurring. Taking FIG. 7 as an example, even if the two wires 235 overlap the top surface 211h, the wires 235 can be prevented from being caught between the fixing plate 250 and the side surface 211d1. I can do it. Therefore, when assembling the light source unit 200, it is possible to further suppress the occurrence of insulation defects due to the wires 235 getting caught. Therefore, workability during assembly is further improved.

Further, the main body portion 210 includes a first connecting portion 213 (an example of a connecting portion) that connects the circuit case 233 and the light emitting module 220 and is covered by a second connecting portion 263 . The second main body part 212 is a rib 212b (an example of a third side part) that protrudes toward the second cover part 262 at a position of the inner peripheral part where the first connecting part 213 is connected, and has one or more wiring lines. It has a rib 212b in which a notch 212c (an example of a third notch) into which a portion 235 is inserted is formed. The second cover portion 262 has a side surface portion 262b that protrudes from the inner peripheral portion toward the second main body portion 212 side and has a notch 262c (an example of a fourth notch) formed at a position where the rib 212b is disposed. (an example of the fourth side part). The cutout 262c is provided such that the distance D4 between the rib 212b and the side surface portion 262b is larger than the total width W of each of the one or more wirings 235.

As a result, when attaching the light source cover 260 to the main body part 210, even if the wiring 235 is removed from the notch 212c, the wiring 235 gets caught between the light source cover 260 and the main body part 210. This can be suppressed. Using FIG. 8 as an example, even if the two wires 235 overlap the upper surface 211a1 of the rib 212b, the wires 235 may be caught between the light source cover 260 and the main body 210. Can be suppressed. Therefore, when assembling the light source unit 200, it is possible to further suppress the occurrence of insulation defects due to the wires 235 getting caught. Therefore, workability during assembly is further improved.

Further, each of the first cover part 261 and the second cover part 262 has flat parts 261a and 262a.

As a result, when the instrument cover 300 that covers the light source unit 200 is provided, the distance between the light source unit 200 and the instrument cover 300 can be made greater than when the first cover part 261 and the second cover part 262 are curved surfaces. I can do it. Therefore, the light emitted from the instrument cover 300 becomes more uniform. Moreover, it becomes possible to downsize the instrument cover 300.

Further, the light emitting module 220 is arranged closer to the appliance main body 100 than the base 230a.

Thereby, the light emitting module 220 is placed close to the installation surface, so that the lighting effect can be enhanced. For example, the light emitting module 220 can irradiate the irradiation surface with light with less uneven brightness.

Further, as described above, the lighting fixture 10 according to the present embodiment includes the light source unit 200 described above and the fixture main body 100 to which the light source unit 200 is detachably attached.

Thereby, it is possible to realize the lighting fixture 10 including the light source unit 200 with improved workability during assembly and replacement.

(Embodiment 2)
Hereinafter, a lighting fixture including a light source unit 400 according to this embodiment will be described with reference to FIG. 11. FIG. 11 is an exploded perspective view showing the configuration of light source unit 400 according to this embodiment. In the following description, differences from Embodiment 1 will be mainly explained, and the same components as in Embodiment 1 will be denoted by the same reference numerals, and the explanation will be omitted or simplified.

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

The light emitting module 500 is, for example, a light source for emitting white light. 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 arranged between the circuit case 233 and the first cover part 261. The light emitting module 500 includes a substrate 510 and a plurality of light emitting elements 520 mounted on the substrate 510. Light emitting module 500 is an example of a second light emitting module.

The substrate 510 is a printed wiring board on which a plurality of light emitting elements 520 are mounted, and is formed in a circular shape. The board 510 also functions as a fixing plate that fixes the circuit section 230 to the main body section 210. Substrate 510 is placed in contact with main body portion 210 . Specifically, the substrate 510 is placed in contact with the side surface portion 211d1. More specifically, the substrate 510 is fixed to the main body portion 210 by fitting the notch 511 of the substrate 510 into the rib 211d2 that protrudes from a part of the side surface portion 211d1 toward the Z-axis plus side. Then, the board 510 is fastened to the circuit section 230 (specifically, the circuit case 233) by a fastening member 270 (for example, a screw) through the through hole 512.

Thereby, the circuit part 230 fixed to the main body part 210 by the claw part 233c and the locking part 213c can be fixed more firmly.

As the substrate 510, for example, a resin substrate based on resin, a metal base substrate based on metal, a ceramic substrate made of ceramic, or the like can be used. Substrate 510 may be made of aluminum, for example.

A plurality of light emitting elements 520 are arranged on the substrate 510. In this embodiment, the plurality of light emitting elements 520 are arranged in an annular shape. Note that the number and arrangement of the light emitting elements 520 are not limited to this. One or more light emitting elements 520 may be mounted. The configuration of the light emitting element 520 may be the same as that of the light emitting element 222.

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 EL element (OLED), an inorganic EL element, or another solid state light emitting element may be used. Further, although an example has been described in which the light emitting module 500 emits white light, the emitted light color is not limited to this. For example, the light emitting module 500 may emit light with a different color temperature than the light emitting module 220. Further, the light emitting module 500 may emit light of a different color from the light emitting module 220.

With the light source unit 400 attached to the instrument main body 100, the light emitting module 500 is disposed on the side opposite to the instrument main body 100 from the light emitting module 220 (that is, on the irradiation surface side).

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

Thereby, the light emitted from the light source unit 400 becomes light with more uniform brightness. Therefore, the irradiation surface can be illuminated more uniformly.

(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. Unless departing from the spirit of the present invention, various modifications to the present embodiment that can be thought of by those skilled in the art and forms constructed by combining components of different embodiments are also included within the scope of the present invention.

For example, in the embodiment described above, the second main body part 212 is arranged closer to the instrument main body 100 than the first main body part 211, but the present invention is not limited thereto. The second main body part 212 may be arranged on the same plane as the first main body part 211.

Further, in the above embodiment, an example has been described in which the holding portions for fixing the wiring 235 by the holding portions 214 and 234 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 parts 214 and 234 may have a configuration in which convex parts are formed intermittently.

10 lighting fixture 100 fixture main body 200, 400 light source unit 210 main body part 211 first main body part 211c bottom part (second bottom part)
211d1 Side part (second side part)
211g Second notch (second notch)
212 Second main body portion 212b Rib (third side surface portion)
212c Notch (3rd notch)
213 First connecting 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 (first holding part)
235 Wiring 240 Circuit cover 241 Bottom part (first 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 (fourth side part)
263c Notch (3rd notch)
263 Second connection part (third cover part)
W Width D1~D4 Distance

Claims (13)

A light source unit that can be detachably attached to a device body,
a cap for receiving electric power supplied from the appliance main 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 using power from the power supply unit;
a first cover part that covers the circuit case; a frame-shaped second cover part that covers the light emitting module and is arranged apart from the first cover part; and the first cover part and the second cover part. a translucent cover having a third cover portion to be connected;
The light source unit has an opening into which a person's finger can be inserted. The light source unit according to claim 1, wherein two or more openings are formed. The light source unit according to claim 2, wherein three openings are formed. The light source unit according to any one of claims 1 to 3, wherein the opening has a size that allows three or more test fingers defined by JISC 0920 to fit therein. The light source unit according to claim 4, wherein the size of the opening is large enough to accommodate four of the test fingers. The light source unit according to any one of claims 1 to 5, wherein the opening has an arch shape when viewed from the optical axis of the light source unit. The light source unit according to any one of claims 1 to 6, further comprising an electrode pin that is provided to protrude from the base toward the instrument main body and is visible through the opening. The light source unit according to claim 2 , wherein the two or more openings are arranged between the first cover part and the second cover part when viewed from the optical axis of the light source unit. 9. The two or more openings are surrounded by the first cover part, the second cover part, and the third cover part when viewed from the optical axis of the light source unit. Light source unit as described. The light source unit according to claim 2, wherein the two or more openings are arranged so as to surround the first cover part when viewed from the optical axis of the light source unit. The light source unit according to any one of claims 1 to 10, wherein the light emitting module is located closer to the instrument main body than the circuit case with the light source unit attached to the instrument main body. The light source unit according to any one of claims 1 to 11, wherein the light emitting module is arranged closer to the instrument body than the base. The light source unit according to any one of claims 1 to 12,
A lighting fixture comprising the fixture main body.

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