JP2018073736A - Lighting device and attachment method of light source unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lighting device which includes a lighting device body and a light source unit detachably attached to the device body and does not need an operation to pull down the light source unit when the light source unit is removed.SOLUTION: A lighting device 300 includes: a lighting device body; and a light source unit 200 detachably attached to the lighting device body. A frame 120 of the lighting device body has a first body side support part 121 and a second body side support part 122. The light source unit 200 has: a translucent cover 220; and an LED attachment plate 210 to which the cover 220 is attached. In the light source unit 200, one end part 217 of the LED attachment plate 210 is supported by the first body side support part 121 and the other end part 218 of the LED attachment plate 210 is supported by the second body side support part 122.SELECTED DRAWING: Figure 8

Description

  The present invention relates to a lighting device including a lighting fixture body and a light source unit that can be attached to and detached from the lighting fixture body.

  2. Description of the Related Art Conventionally, a light source unit that can be attached to and detached from a lighting fixture body attached to a ceiling is attached to the lighting fixture body by a pulling force of a spring (Patent Document 1).

JP 2014-232713 A

  However, in order to attach the light source unit to the luminaire main body using a spring, for example, the attaching operator elastically deforms the spring and hooks the spring in the opening provided in the luminaire main body, and then by the lifting force of the spring. The light source unit is attached to the luminaire main body, and the installation work of the light source unit is troublesome.

  An object of the present invention is to provide an illuminating device including a luminaire main body and a light source unit detachable from the luminaire main body so that the light source unit can be easily attached to the luminaire main body.

The lighting device of the present invention is
In a lighting device comprising a lighting fixture body and a light source unit detachably attached to the lighting fixture body,
The lighting fixture body is:
A first main body side support portion and a second main body side support portion;
The light source unit is
A light-transmitting cover; and a cover attachment portion to which the cover is attached. One end of the cover attachment portion is supported by the first body-side support portion, and the other of the cover attachment portions An end portion is supported by the second main body side support portion.

  According to the lighting device of the present invention, the light source unit can be easily attached to the lighting fixture body.

FIG. 3 is a perspective view of the lighting device 300 in the first embodiment. FIG. 3 is an exploded perspective view of the lighting device 300 in the first embodiment. FIG. 3 is an exploded perspective view of the lighting fixture body 100 in the first embodiment. FIG. 4 is an exploded perspective view of the light source unit 200 in the first embodiment. FIG. 4 is a perspective view of the frame 120 in the first embodiment. FIG. 5 is another perspective view of the frame 120 in the first embodiment. The top view of the frame 120 seen from the F direction of FIG. 6 in the figure of Embodiment 1. FIG. FIG. 8 is a diagram corresponding to the BB cross section of FIG. 7, according to the first embodiment. FIG. 3 is a diagram of the first embodiment, and is a view in the Z direction of FIG. FIG. 10 is a diagram of the first embodiment, in which the light source unit 200 is removed from the illumination device 300 of FIG. 9. FIG. 11 is a cross-sectional view taken along the line CC in FIG. 10 according to the first embodiment. FIG. 3 is a diagram of the first embodiment, and is a perspective view of the light source unit 200. It is a figure of Embodiment 1, and the Y direction arrow view of FIG. FIG. 3 is a diagram of the first embodiment, showing three views of the light source unit 200. The figure of Embodiment 1 is a figure which shows the process in which an operator attaches the light source unit 200 to the instrument main body 100 fixed to the ceiling. FIG. 3 is a diagram of the first embodiment, and is a cross-sectional view having a normal line in the X direction of FIG. 1 and a schematic diagram illustrating a relationship between the light source unit 200 and the frame 120 in the Y direction.

Embodiment 1 FIG.
FIG. 1 is a perspective view of the lighting device 300. FIG. 2 is an exploded perspective view of the lighting device 300. FIG. 3 is an exploded perspective view of the luminaire main body 100. FIG. 4 is an exploded perspective view of the light source unit 200.

  XYZ coordinates are shown in FIG. 1 and the like, but if described with reference to FIG. 3, the X direction is a direction from the leaf spring 141 toward the leaf spring 142. The Y direction is a direction from the case side surface portion 114 toward the case side surface portion 111. The Z direction is a direction from the light source unit 200 toward the instrument body 100 as shown in FIG. In the drawings other than FIGS. 1 to 4, the X, Y, and Z directions are the same as those in FIGS. 1 to 4.

  In the following description, the opening 101 of the instrument body 100 and the opening 125 of the frame 120 appear, but the opening 101 is the opening 125 itself. In addition, one end 201 and the other end 202 of the light source unit 200 and one end 217 and the other end 218 of the LED mounting plate 210 appear, but the one end 201 and the other end of the light source unit 200 appear. The end portions 202 are the one end portion 217 and the other end portion 218 of the LED mounting plate 210, respectively.

  FIG. 5 is a perspective view of the frame 120. FIG. 6 is another perspective view of the frame 120. FIG. 7 is a plan view of the frame 120 seen from the direction F in FIG. FIG. 8 is a schematic view corresponding to the BB cross section of FIG. FIG. 9 is a view of the lighting device 300 as viewed in the Z direction in FIG. FIG. 10 is a diagram in which the light source unit 200 is removed from the illumination device 300 of FIG. 11 is a cross-sectional view taken along the line CC of FIG. FIG. 12 is a perspective view of the light source unit 200. FIG. 13 is a view in the Y direction of FIG. FIG. 14 is a three-side view of the light source unit 200. FIG. 15 is a diagram showing a process of attaching the light source unit 200 to the instrument main body 100 fixed to the ceiling. FIG. 16 is a cross-sectional view having the normal direction in the X direction of FIG.

*** Explanation of configuration ***
The lighting device 300 includes a lighting fixture body 100 and a light source unit 200. As illustrated in FIG. 2, the lighting device 300 includes a lighting fixture body 100 and a light source unit 200 that is detachably attached to the lighting fixture body 100. Although the lighting device may be called a lighting fixture, Embodiment 1 will be described using the term lighting device. The lighting fixture body 100 will be referred to as a fixture body 100 hereinafter.

(Equipment body 100)
As shown in FIG. 3, the instrument main body 100 includes a case 110, a frame 120, a power supply unit 130, a leaf spring 141, a leaf spring 142, a power supply terminal block 150, a dimming terminal block 160, a power supply side harness 170, and screws 180. ing. The case 110 is provided with a power supply unit 130, a leaf spring 141, a leaf spring 142, a power supply terminal block 150, a dimming terminal block 160, and a power supply side harness 170 provided with a connector 171 at the tip. Further, the case 110 has a power supply line hole 117 through which the power supply line passes, a dimming signal line hole 118 through which the dimming signal line passes, and a mounting hole 119 through which the mounting bolt passes.

(Case 110)
As shown in FIG. 3, the case 110 includes a square plate-like case bottom portion 115 and case side portions 111 to 114. Since the power supply unit 130 which is the power supply device 9130 is disposed on the case side surface portion 111, the case side surface portion 111 is higher than the case side surface portions 112 to 114.

(Frame 120)
The frame 120 is attached with four screws 180 to the case 110 with the power supply unit 130 and the like attached thereto. The frame 120 is a rectangular frame-shaped outer shape. The outer shape of the frame 120 includes a frame bottom surface portion 120A in which a square opening 125 indicated by pqrs is formed, and four frame side surface portions 120B-1 to 120B-4. The first leg 123 rises from the edge indicated by s and r in the opening 125. The first leg portion 123 is bent at the rising end. Of the first leg 123, the part rising from the edges indicated by s and r is the side part 123 b, and the bent part at the tip is the attachment part 123 a of the case 110 that receives the case 110. As shown in FIG. 6, the first leg 123 is paired with the second leg 124 rising from the edges indicated by p and q. Similar to the first leg portion 123, the second leg portion 124 includes a side surface portion 124b and an attachment portion 124a. The attachment part 124a and the attachment part 123a face each other.

(First main body side support portion 121 and second main body side support portion 122)
In addition, a first opening side wall 127 rises from the edge indicated by p and s in the opening 125. The end of the first opening side wall 127 is bent, and this portion is the first main body side support portion 121. The first main body side support portion 121 supports one end portion 217 of the LED mounting plate 210. Similarly, the second opening side wall 128 rises from the edge indicated by q and r in the opening 125. The end of the second opening side wall 128 is bent, and this portion is the second main body side support portion 122. The second main body side support portion 122 supports the other end portion 218 of the LED mounting plate 210.

  Since the frame 120 is a component of the instrument main body 100, the instrument main body 100 includes a first main body side support portion 121 and a second main body side support portion 122.

(Power supply unit 130)
As shown in FIG. 10, when viewed from the Z direction, the power line hole 117, the dimming signal line hole 118, and the mounting hole 119 are disposed inside the opening 101, and the leaf springs 141 and 142, the power terminal block 150 and the dimming terminal block 160 are also arranged inside the opening 101. That is, in FIG. 10, the power line hole 117 and the like can be seen from the opening 101 (pqrs). On the other hand, since the power supply unit 130 is disposed outside the opening 101, it cannot be seen from the opening 101. Referring to FIG. 16, the power supply unit 130 includes a side surface portion 123 b that is a first side wall 9123 b that rises from an edge of the opening 101, and a side surface of a frame that is a second side wall 9120 </ b> B that is disposed to face the side surface portion 123 b. Since it is arranged between the portion 120B-3, it cannot be seen from the opening 101 in FIG. The power supply unit 130 supplies power to the LED module 230 on which a plurality of LEDs that are light sources are mounted.

  As shown in FIG. 3, the frame 120 is attached to the case 110 with the power supply unit 130 and the like attached thereto by four screws 180.

(Light source unit 200)
As shown in FIG. 4, the light source unit 200 includes an LED mounting plate 210, a cover 220, an LED module 230, a cover mounting bracket 240, a light source side harness 250, a screw 260 and a screw 270. The LED mounting plate 210 includes a square plate-shaped mounting bottom surface portion 215 and mounting side surface portions 211 to 214. The LED module 230 in which a plurality of LEDs are arranged as a light source is attached to the LED attachment plate 210 with four screws 260. The cover 220 includes a rectangular cover bottom surface portion 221 that becomes the light source unit light emitting portion 203, a pair of cover side surface portions 222 and a cover side surface portion 223 that rise from the opposite sides of the cover bottom surface portion 221 in the X direction, A pair of cover-side fixing portions 224 and cover-side fixing portions 225 that are pressed by the metal fittings 240 are provided. The cover 220 is attached to the LED attachment plate 210 when the pair of cover-side fixing portions 224 and 225 are respectively pressed by the cover attachment bracket 240. Each cover mounting bracket 240 is mounted to the LED mounting plate 210 with two screws 270.

  The instrument main body 100 is directly attached to the ceiling with mounting bolts and nuts (not shown) using the mounting holes 119 of the case 110. An operator attaches the light source unit 200 to the instrument main body 100 directly attached to the ceiling.

  A specific attachment process for attaching the light source unit 200 to the instrument main body 100 will be described later with reference to FIG. 15. The light source unit 200 is supported by the instrument main body 100 as follows. As shown in FIG. 8, one end 217 (FIG. 12) and the other end 218 (FIG. 12) of the LED mounting plate 210 are respectively connected to the first main body side support 121 and the first end 218 of the frame 120. The light source unit 200 is attached to the instrument main body 100 by being supported by the two main body side support portions 122.

  The light source unit 200 attached to the instrument main body 100 is pushed downward (opposite the ceiling) by the leaf springs 141 and 142, and the positions in the Z1 direction and the Z2 direction shown in FIG. In FIG. 15A, the length H1 is the distance between the lower surface of the leaf spring 142 and the upper surface of the second main body side support portion 122 in the Z1 direction. In FIG. 15C showing a state in which the light source unit 200 is attached to the instrument main body 100, the length H2 is the distance between the lower surface of the leaf spring 142 and the upper surface of the second main body side support portion 122 in the Z1 direction. . The length H2> the length H1, and the leaf spring 142 elastically deformed in the Z1 direction by “H2−H1” presses the light source unit 200 against the second main body side support portion 122 with an elastic force. The same applies to the leaf spring 141. In the illuminating device 300, the instrument main body 100 includes leaf springs 141 and 142 that press the light source unit 200 against the first main body side support portion 121 and the second main body side support portion 122 with an elastic force. One may be sufficient and three or more may be sufficient. A coil spring may be used instead of the plate spring, or both a plate spring and a coil spring may be used.

*** Explanation of the light source unit 200 installation process ***
FIG. 15 is a schematic diagram for explaining attachment steps (a) to (c) for attaching the light source unit 200 to the opening 101. A series of steps (a) to (c) in FIG. 15 described below is a method for attaching the light source unit 200 to the instrument main body 100. An attachment process for attaching the light source unit 200 to the instrument body 100 will be described with reference to FIG. Before the process of FIG. 15, the worker connects the connector 171 of the power source side harness 170 and the connector 251 of the light source side harness 250. In FIG. 15, the power supply side harness 170 and the connector 171, the light source side harness 250 and the connector 251 are omitted.

((A) of FIG. 15)
FIG. 15A will be described.
The instrument main body 100 includes, as part of the internal space 104, a first storage space 104-1 in which one end 217 of the LED mounting plate 210 that is the cover mounting portion 9210 is stored, and the other of the LED mounting plate 210. A second storage space 104-2 in which the end 218 is stored is formed.
First, the operator inserts one end 201 of the light source unit 200 obliquely into the opening 101 of the instrument main body 100, and further inserts the one end 201 from the opening 102 into the first storage space 104-1. . The opening 101 of the instrument main body 100 is the opening 125 (FIG. 2) itself of the frame 120, and the opening 102 shown in FIG. 5A is formed in the instrument main body 100 at a location indicated by a broken line in FIGS. Yes. The operator pushes up the leaf spring 141 with the light source unit 200 (LED mounting plate 210) so that the light source unit 200 enters between the leaf spring 141 and the first main body side support portion 121.
As shown in FIG. 15A, the instrument main body 100 includes an opening 101 and an internal space 104 that continues from the opening 101, and an upper space 104 that continues from the opening 101 in the Z <b> 1 direction, which is the normal direction of the opening 101. -3, the first storage space 104-1 extending from the upper space 104-3 in the lateral direction of the upper space 104-3, and the upper space 104-3 continuing in the direction opposite to the first storage space 104-1. An internal space 104 including the second storage space 104-2 is formed. The process illustrated in FIG. 15A is a first insertion process in which one end 201 of the light source unit 200 is inserted into the first storage space 104-1.
Thus, the light source unit 200 is in the state shown in FIG.

(Dimensions)
The dimensions of the opening 101 and the light source unit 200 will be described. In FIG. 2, the length L1 of the LED mounting plate 210 in the X direction is longer than the length between the openings pq of the opening 101. Since the opening 101 is a rectangle,
length between pq = length between sr,
It is. This relationship is shown in FIG. In FIG. 2, the length L2 of the LED mounting plate 210 in the Y direction is the same as the length between the ps of the opening 101, but is slightly shorter. Since the opening 101 is a rectangle,
length between ps = length between qr,
It is. The relationship in the X direction is shown in FIG.

((B) of FIG. 15)
In FIG. 15B, in the state where one end 201 of the light source unit 200 is inserted into the first storage space 104-1, the other end 202 of the light source unit 200 is connected to the upper space 104-. 3 is stored. When the other end 202 of the light source unit 200 also enters the internal space 104 from the opening 101, that is, when the other end 202 of the light source unit 200 is accommodated in the upper space 104-3, the operator 200, the light source unit 200 is placed in a horizontal posture with one end 201 in contact with the first main body side support portion 121 as a fulcrum. Here, the internal space 104 is a space that continues from the opening 101 in the Z1 direction in the instrument main body 100, as described in FIG. The internal space 104 is formed by a frame 120 and a case 110 (FIG. 3). In this case, as shown in (a) and (b), the lower surface of the cover 220 as one end 201 of the light source unit 200 is in contact with the first main body side support portion 121. The light source unit 200 is in a horizontal state as shown in FIG.

((C) of FIG. 15)
The operator slides the horizontal light source unit 200 horizontally in the X direction. By this sliding, the lower surface of the cover 220 slides horizontally in the X direction with respect to the first main body side support portion 121. Then, the portion supported by the first main body side support portion 121 moves from the lower surface of the cover 220 to the lower side of the one end portion 217 of the LED mounting plate 210. At this time, the lower side of the other end portion 218 of the LED mounting plate 210 is supported by the second main body side support portion 122. Then, the cover 220 which is the light source unit light emitting unit 203 fits into the opening 101. The light source unit 200 is in the state (c), and the light source unit 200 is attached to the instrument main body 100.
That is, in the step shown in FIG. 15C, the light source stored in the upper space 104-3 in a state where one end 201 of the light source unit 200 is inserted into the first storage space 104-1. This is a step of inserting the other end 202 of the unit 200 into the second storage space 104-2.

When the light source unit 200 is attached to the instrument body 100, the cover 220 closes the opening 101. As shown in FIG. 8, in the X direction, the cover 220 closes the opening 101 with almost no gap. That means
The length of the cover 220 in the X direction length L3≈sr,
It is.
Also, as shown in FIG. 16, the cover 220 closes the opening 101 even in the Y direction. The opening 101 only has a gap about the thickness of the attachment side surface portions 211 and 213. It is possible to eliminate the gap due to the plate thickness by making the size of the bottom surface portion, which is the position in the Z direction of the opening 101 of the cover 220, the size of the opening 101.

  As illustrated in FIG. 8 and FIG. 15C, the light source unit 200 includes a translucent cover 220 and an LED mounting plate 210 that is a cover mounting portion 9210 to which the cover 220 is mounted. In the light source unit 200, one end 217 of the LED mounting plate 210 is supported by the first main body side support portion 121, and the other end 218 of the LED mounting plate 210 is supported by the second main body side support portion 122. Yes. Specifically, one end 217 of the LED mounting plate 210 is supported in a state of being placed on the first main body side support portion 121, and the other end 218 of the LED mounting plate 210 is supported by the second main body. It is supported in a state of being placed on the side support portion 122.

  15C shows the completion of the installation of the light source unit 200, which corresponds to FIG. 1, FIG. 16, etc., but the instrument main body 100 has an opening 101 and an internal space 104 continuing from the opening 101. The cover 220 and the LED mounting plate 210 are accommodated in the internal space 104.

  Further, in a state where the light source unit 200 is attached to the instrument main body 100, the cover 220 closes the opening 101 (FIG. 1, FIG. 9, and FIG. 15 (a)).

(Mounting bolt housing 103)
Further, when the light source unit 200 is attached to the instrument main body 100, the attachment bolts are accommodated in the attachment bolt housing portion 103 which is a space shown in FIG.

(First leg 123 and second leg 124)
The first leg part 123 and the second leg part 124 (FIG. 5) that form a pair have a function of attaching the frame 120 to the case 110, but the side part 123b of the first leg part 123 and the second leg part. The side surface portion 124 b of the portion 124 has a function of a guide when the light source unit 200 is attached to the instrument main body 100. That is, as shown in FIG. 16, the side surface portion 123 b and the side surface portion 124 b guide the light source unit 200. The guide function can prevent the light source unit 200 from shifting in the Y direction.

(Removal process)
Next, the case where an operator removes the light source unit 200 from the instrument main body 100 is demonstrated. The removal process of the light source unit 200 is a process in which the operator reverses the order of (a), (b), and (c) described in FIG. 15 to (c), (b), and (a). A specific example will be briefly described below.

<Step (c) → (b)>
The light source unit 200 is attached to the instrument main body 100 in the state as shown in FIG. There is no gap in the opening 101 for the operator's finger to enter. The operator places his / her hand on the cover bottom surface portion 221 and lifts the light source unit 200 in the Z1 direction in a horizontal state, and further slides the light source unit 200 in the opposite direction to the X direction in the horizontal state. A part is supported by the first main body side support portion 121. This is the state shown in FIG. 15B, the other end 202 of the light source unit 200 is visible from the opening 101 in the Z1 direction.

<Step (b) → (a)>
Subsequently, in the state of FIG. 15B, the worker pulls down the other end 202 in the X direction of the light source unit 200 in the Z2 direction with the one end 201 in the X direction of the light source unit 200 as a fulcrum. Then, the operator removes the light source unit 200 from the instrument body 100 by pulling out the light source unit 200 in the direction opposite to the insertion direction. In a series of steps of removing the light source unit 200 from the instrument body 100, the side surface portion 123b and the side surface portion 124b (FIG. 16) serve as guides for removal, and therefore the operator removes the light source unit 200 from the instrument body 100 by the guide. Can do.

  As described in the attachment process for attaching the light source unit 200 to the instrument body 100 and the removal process for removing the light source unit 200 from the instrument body 100, the light source unit 200 can be detached from the internal space 104 through the opening 101.

*** Explanation of effects of embodiment 1 ***
(1) In the lighting device 300, the LED mounting plate 210 and the cover 220 are accommodated in the internal space 104 of the fixture body 100, and only the cover bottom surface portion 221 of the light source unit 200 that is the light source unit light emitting unit 203 is exposed from the opening 125. It is. Therefore, according to the illuminating device 300, when the light source unit 200 is attached to the instrument main body 100, it is possible to provide an illuminating device in which a screw or an attachment portion does not appear on the design surface.
(2) Moreover, in the illuminating device 300, several LED231 is arrange | positioned at the LED module 230 so that it may not have directionality in light distribution. Therefore, according to the illuminating device 300, the flat type detachable light source unit having no directionality in terms of light distribution can be provided.
(3) In the illuminating device 300, when the light source unit 200 is removed, there is no operation to pull down, and therefore it is not necessary to secure a convex part and a concave part for the operator's finger to hang.
(4) In the lighting device 300, the terminal block, the fixture mounting hole, and the like attached to the fixture body 100 can be arranged in the Z1 direction with respect to the light source unit 200. For this reason, compared with arranging a terminal block or the like in the decorative frame space on the outer periphery of the light source unit 200, it is possible to secure a wider space around the terminal block and the mounting hole. It is easier to perform wiring and appliance mounting work than arranging it in the outer decorative frame space.

  In addition, although the structure which presses the leaf | plate spring 141 to a downward direction (Z2 direction) was demonstrated, the structure which suppresses that the light source unit 200 tries to move to an upward direction (Z1 direction) without pressing may be sufficient.

DESCRIPTION OF SYMBOLS 300 Lighting apparatus, 100 fixture main body, 101 opening, 102 opening, 103 mounting bolt accommodating part, 104 internal space, 104-1 1st accommodating space, 104-2 2nd accommodating space, 104-3 upper space, 110 case , 111, 112, 113, 114 Case side surface portion, 115 Case bottom surface portion, 117 Power supply line hole, 118 Dimming signal line hole, 119
Mounting hole, 120 frame, 120A frame bottom surface portion, 120B-1, 120B-2, 120B-3, 120B-4 frame side surface portion, 121 first main body side support portion, 122 second main body side support portion, 123 th 1 leg portion, 123a mounting portion, 123b side surface portion, 124 second leg portion, 124a mounting portion, 124b side surface portion, 125 opening, 127 first opening side wall, 128
Second opening side wall, 130 power supply unit, 141, 142 leaf spring, 150 power supply terminal block, 160 dimming terminal block, 170 power supply side harness, 171 connector, 180 screw, 200 light source unit, 201 one end of light source unit 200 202, the other end of the light source unit 200, 203 the light source unit light emitting unit, 210 LED mounting plate, 211, 212, 213, 214 mounting side surface, 215 mounting bottom surface, 217 one end of the LED mounting plate 210, 218 The other end of the LED mounting plate 210, 220 cover, 221 cover bottom surface portion, 222, 223 cover side surface portion, 224, 225 cover side fixing portion, 230 LED module, 231 LED, 240 cover mounting bracket, 250 light source side harness 251 connector, 260 screws, 270 screws, 300 lighting equipment , Second side wall, 9120B, 9123b first side wall, 9130 power supply, 9210 cover attachment.

Claims (9)

In a lighting device comprising a lighting fixture body and a light source unit detachably attached to the lighting fixture body,
The lighting fixture body is:
A first main body side support portion and a second main body side support portion;
The light source unit is
A light-transmitting cover; and a cover attachment portion to which the cover is attached. One end of the cover attachment portion is supported by the first body-side support portion, and the other of the cover attachment portions An illuminating device having an end portion supported by the second main body side support portion. One end of the cover mounting portion is
Supported in a state of being placed on the first main body side support portion,
The other end of the cover mounting portion is
The lighting device according to claim 1, wherein the lighting device is supported in a state of being placed on the second main body side support portion. The lighting fixture body is:
An opening and an internal space continuing from the opening are formed, and the cover and the cover mounting portion are
The lighting device according to claim 1, wherein the lighting device is housed in the internal space. The cover is
The lighting device according to claim 3, wherein the opening is closed. The lighting fixture body is:
A first sidewall rising from an edge of the opening;
A second sidewall disposed opposite the first sidewall;
The lighting device according to claim 3, further comprising: a power supply device that is disposed between the first side wall and the second side wall and supplies power to the light source. The light source unit is
The lighting device according to any one of claims 3 to 5, wherein the lighting device is removable from the internal space through the opening. The lighting fixture body is:
As a part of the internal space, there is a first storage space in which one end of the cover mounting portion is stored, and a second storage space in which the other end of the cover mounting portion is stored. The lighting device according to claim 3, wherein the lighting device is formed. The lighting fixture body is:
The illumination according to any one of claims 1 to 7, further comprising a spring that presses the light source unit against the first main body side support portion and the second main body side support portion with an elastic force. apparatus. An opening, an internal space extending from the opening, an upper space extending in a direction normal to the opening, a first storage space extending from the upper space in a lateral direction of the upper space, and the upper space from the upper space. A step of inserting one end of the light source unit into the first storage space of the luminaire main body in which an internal space including a second storage space continuing in a direction opposite to the first storage space is formed. When,
Storing the other end of the light source unit in the upper space in a state where one end of the light source unit is inserted into the first storage space;
With one end of the light source unit inserted into the first storage space, the other end of the light source unit stored in the upper space is inserted into the second storage space. And a method for attaching the light source unit.

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