Illumination device

Abstract

To provide a lighting device which enables easy positioning.SOLUTION: A lighting device X includes: a chassis 5; and a frame 6 detachably attached to the chassis 5. The chassis 5 includes a main plate part 50 and engagement parts 51. The frame 6 has engaged parts 61 with which the engagement parts 51 respectively engage. The main plate part 50 has: a pair of first peripheral edge portions 501 in each of which an edge of a peripheral edge has a first shape when the main plate part 50 is viewed in a direction in which the frame 6 is attached to the chassis 5; and a pair of second peripheral edge portions 503 in each of which an edge of a peripheral edge has a second shape different from the first shape. The engagement parts 51 are provided at the pair of first peripheral edge portions 501 when viewed in the direction that the frame 6 is attached.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present invention relates to a lighting device attached to an installation surface such as a ceiling.

Background Art

[0002] As a lighting device, for example, there has been proposed one including a chassis (10) fixed to a ceiling and a frame (29), the chassis (10) having a mounting spring (751) for the frame (29), and the frame (29) having a spring receiver (752) for the mounting spring (751) (for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, in the lighting device of Patent Document 1, when attaching the frame (29) to the chassis (10) fixed to the ceiling, it is difficult to align the mounting spring and the spring receiver. The present invention has been made in view of such circumstances, and an object thereof is to provide a lighting device that is easy to align.

Means for Solving the Problems

[0005] In order to solve the above problems, the lighting device according to the present invention includes a chassis and a frame detachably attached to the chassis. The chassis includes a main board portion and an engaging portion, and the frame has an engaged portion with which the engaging portion engages. When the main board portion is viewed from the direction in which the frame is attached to the chassis, the main board portion has a pair of first peripheral portions whose peripheral edge shapes are a first shape and a pair of second peripheral portions whose shapes are different from the first shape. The engaging portion is provided on the pair of first peripheral portions or the pair of second peripheral portions when viewed from the above direction.

Effect of the Invention

[0006] According to the present invention, since the engaging portion is provided on the first peripheral portion or the second peripheral portion having different shapes, the position of the engaging portion can be easily recognized. As a result, the alignment of the engaging portion and the engaged portion can be easily performed.

Brief Description of the Drawings

[0007]

Figure 1

Figure 2

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Figure 10

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Figure 16

Embodiments for Carrying Out the Invention

[0008] <Summary> The first lighting device according to an aspect of the embodiment includes a chassis and a frame detachably attached to the chassis. The chassis includes a main board portion and an engaging portion, and the frame has an engaged portion with which the engaging portion engages. When the main board portion is viewed from the direction in which the frame is attached to the chassis, the main board portion has a pair of first peripheral portions whose peripheral edge shapes are a first shape and a pair of second peripheral portions whose shapes are different from the first shape. The engaging portion is provided on the pair of first peripheral portions or the pair of second peripheral portions when viewed from the direction. Thus, since the engaging portion is provided on either the first peripheral portion or the second peripheral portion having a different shape, the position of the engaging portion can be easily recognized. As a result, it is easy to align the engaging portion and the engaged portion. Also, when viewed from the mounting direction, the first peripheral portion and the second peripheral portion can be discriminated. The second lighting device according to another aspect of the embodiment is the first lighting device, in which the first shape is linear when viewed from the direction, the second shape is curved when viewed from the direction, and the engaging portion is provided on the first peripheral portion. Thus, the position of the engaging portion can be easily grasped by the linear shape and the different curved shape. As a result, it becomes easy to align the engaging portion and the engaged portion. The third lighting device according to another aspect of the embodiment is the first or second lighting device, in which the chassis has a flat portion extending in a direction away from the main board portion at the first peripheral portion, and the engaging portion is provided on the flat portion. Thus, since the engaging portion can be received on a flat surface, the attachment of the engaging portion does not become complicated compared to the case where the engaging portion is provided on the curved second peripheral portion.

[0009] The fourth lighting device according to another aspect of the embodiment includes, in any one of the first to third lighting devices, a terminal block for connecting to the commercial power supply side, a light source unit, and a power supply unit connected to the terminal block and generating lighting power to the light source unit. The chassis has, on the main board portion, an attachment portion for attaching the terminal block and an opening for the terminal block. The attachment portion has a bottom wall to which the terminal block is attached, a side wall standing from an edge of the bottom wall, and an attachment wall attached to a peripheral portion of the opening of the main board portion. The terminal block has a connection port to the commercial power facing the opening, and a connection port to the power supply unit facing a region where the side wall is not provided in the attachment portion. Thereby, wiring to the terminal block can be performed even from the outside of the frame or the chassis, and interference from the outside with the wiring between the power supply unit and the terminal block can be suppressed. As a result, the workability of the device can be improved and damage to the wiring can be suppressed. The fifth lighting device according to another aspect of the embodiment includes, in the fourth lighting device, the power supply unit having a power supply case for housing a circuit board. The power supply case has an opening for electrically connecting the terminal block and the circuit board. The terminal block has a connection port for connection to the circuit board facing the opening of the power supply case.

[0010] <First Embodiment> 1. Overall Configuration of Lighting Device As shown in FIG. 1, the lighting device X is attached to an installation surface (not shown) such as a ceiling, for example. Here, it is attached to the installation surface by screws or the like. As shown in FIG. 2, the lighting device X includes at least a light source unit 1 in a housing 4. The lighting device X of the present embodiment includes a power supply unit 2, a battery unit 3, and a terminal block unit 7 in the housing 4. Thereby, in a state where power is supplied from the commercial power supply, the power supply unit 2 lights the light source unit 1 while charging the battery unit 3, and in a state where power is not supplied from the commercial power supply, the battery unit 3 lights the light source unit 1. That is, the lighting device X is a so-called emergency lighting device. The lighting device X includes, as the housing 4, a chassis 5 attached to an installation surface such as a ceiling, and a frame 6 detachably attached to the chassis 5. The light source unit 1, the power supply unit 2, the battery unit 3, and the terminal block unit 7 are provided on the chassis 5, and these are regarded as the device main body Y. Here, the side where the light source unit 1 is located with respect to the main board portion 50 of the chassis 5 is the front side, and the side where the installation surface is located with respect to the main board portion 50 of the chassis 5 is the back side. The direction orthogonal to the main board portion 50 is defined as the front-back direction. The front-back direction coincides with the direction in which light is emitted from the light source unit 1 and the direction orthogonal to the installation surface. Here, since the lighting device X is installed on a ceiling or the like, the front-back direction is taken as the vertical direction, the front side is taken as the lower side, and the back side is taken as the upper side for the following description. Also, the direction toward the back in the front-back direction is the direction in which the frame 6 is attached to the chassis 5.

[0011] The lighting device X detachably includes the battery unit 3 in the power supply unit 2, and the light source unit 1 is movably mounted in the vertical direction and rotatably mounted around the vertical axis on the power supply unit 2. The light source unit 1 is located below the power supply unit 2 and the battery unit 3, but by being configured to be rotatable, the battery unit 3 can be easily attached and detached. Also, the lighting device X has a plate member 81 that prevents the detachable battery unit 3 from being arranged at the attachment position in the wrong posture (orientation). The following describes each part.

[0012] 2. Each part (1) Housing As shown in FIGS. 1 to 3, the housing 4 includes a chassis 5 and a frame 6. The attachment of the frame 6 to the chassis 5 is performed, for example, by an engagement structure. The frame 6 may not be a member constituting the housing 4 but a decorative frame detachably attached to the housing (the chassis 5 here).

[0013] (1-1) Chassis This will be mainly described with reference to FIG. 3. The chassis 5 has at least a main board portion 50 that is attached to or faces the installation surface, and an engaging portion 51 for attaching the frame 6. The engaging portion 51 engages with an engaged portion 61 of the frame 6 described later. When viewed from the front and back directions, the main board portion 50 has at least a pair of first peripheral portions 501 whose peripheral shape is a first shape, and a pair of second peripheral portions 503 whose shape is a second shape different from the first shape. The pair of first peripheral portions 501 and the pair of second peripheral portions 503 are provided so as to face each other with the center of the main board portion 50 interposed therebetween. As shown in Fig. 2(b), for example, there are two engaging portions 51, that is, a pair, which are provided on the pair of first peripheral portions 501 or second peripheral portions 503 when viewed from the front and back directions. The "first" or "second" of the first shape, the second shape, the first peripheral portion 501, and the second peripheral portion 503 are for convenience of distinction. When viewed from the back side, the first shape is linear and the second shape is curved. The engaging portion 51 is provided on the linear first peripheral portion 501. Thereby, the portion where the engaging portion 51 is provided becomes flat, and the engaging portion 51 can be easily provided. The first peripheral portion 501 is provided at a portion that faces across the center of the lighting device X when the lighting device X is viewed from the front and back directions. Thereby, the frame 6 can be engaged with the chassis 5 in a well-balanced manner.

[0014] As shown in Fig. 3, the chassis 5 has at least a first extension portion 52 that extends from the first peripheral portion 501 to the front side. Here, since the shape of the first peripheral portion 501 is linear when viewed from the back side, the first extension portion 52 is flat. The flat first extension portion is referred to as a flat portion, and the symbol "52" is used. The engaging portion 51 is provided on the flat portion 52. Thereby, the engaging portion 51 can be provided more easily than providing it on a curved portion, for example, the second extension portion 53 described later. The chassis 5 has a second extension part 53 extending from the second peripheral part 503 to the front side. The second extension part 53 conforms to the outer appearance shape of a part of the peripheral wall part 60 of the frame 6. Here, since the shape of the second extension part 53 is a curved shape that protrudes in an arc shape when viewed from the front-back direction, it is a curved part, and the symbol "53" is used. Note that the peripheral plate part of the chassis 5 is constituted by a pair of first extension parts 52 and a pair of second extension parts 53. Also, the "first" or "second" of the first extension part 52 and the second extension part 53 is attached for convenience of distinction. When viewed from the front-back direction, the peripheral plate part has a shape in which two opposing parts sandwiching the center in a circular shape are missing. Note that the missing part is the flat part 52, and the arc-shaped part that is a part of the circle is the curved part 53.

[0015] The terminal block unit 7 and the power supply unit 2 are attached to the main board part 50. The chassis 5 has an opening 54 in the main board part 50 for attaching the terminal block unit 7 in a state where a part or all of the terminal block unit 7 fits on the main board part 50 side (see (a) of FIG. 2). Thereby, the lighting device X can be installed in a state where the main board part 50 is in contact with the installation surface. The opening 54 has a size and shape into which the terminal block 71 can be inserted. The opening 54 has a shape corresponding to the terminal block 71 when viewed from the front-back direction. The opening 54 here has a rectangular shape, a square shape, or a shape similar thereto. The terminal block 71 of the terminal block unit 7 is attached to the main board part 50 via the attachment member 73, and the peripheral part of the opening 54 constitutes the attachment part of the attachment member 73. As shown in (b) of FIG. 3, the opening 54 is provided on one side in the direction orthogonal to the virtual line passing through the center of the lighting device X and connecting the centers of the pair of engagement parts 51 when the chassis 5 is viewed from the back side. Note that on the other side in the direction orthogonal to the virtual line, a recess 55 for the fixing member 83 for fixing the power supply unit 2 described later is provided.

[0016] The main board part 50 has through holes 505 for screws (not shown) to fix the chassis 5 to the installation surface. The main board part 50 has a bridge part 507 where the S-shaped hook of a suspension tool (not shown) that prevents the frame 6 from falling off the chassis 5 engages. Note that the through holes 505 are provided in a state of facing each other across the central axis of the lighting device X. Also, the suspension tool has S-shaped hooks at both ends of a string or a chain. As shown in FIGS. 3 and 8, the bridge part 507 has a bridge shape formed by bending a part of the main board part 50 that has been cut out to the front side (bridge processing), and the bridge part 507 functions as an engagement part for the S-shaped hook.

[0017] As shown in FIG. 8, the engagement part 51 is composed of an engagement member provided at the opening part 521 of the flat part 52. Note that the reference numeral of the engagement member is also "51". The engagement member 51 has an overhanging part 511 that protrudes from the opening part 521 of the flat part 52 to the outside of the chassis 5, an upper bent part 513 that bends upward from the upper end of the overhanging part 511, and a lower bent part 515 that bends downward from the lower end of the overhanging part 511. Here, when viewed from the side, the overhanging part 511 has a "V" shape, with its connecting part located outside the chassis 5 and the opening part (the part with the upper end and the lower end) located inside the chassis 5. Since the overhanging part 511 is provided so that the width direction of the engagement member 51 coincides with the circumferential direction of the first extension part 52, as shown in FIG. 11(c), it protrudes over a wide range and is configured to be easily visible. The engagement member 51 is supported by inserting the lower bent part 515 into the insertion groove of the flat part 52 from above. Here, with the upper bent part 513 in contact with the back surface of the flat part 52, the lower bent part 515 is inserted into the insertion groove. Thereby, it becomes difficult for the engagement member 51 to come out from the opening part 521 of the first extension part 52.

[0018] The insertion groove is formed by a bridge portion 525 formed by notching a part of the flat portion 52 and bending the notched portion radially inward. The bridge portion 525 is formed toward the center side of the peripheral plate portion and extends in a direction orthogonal to the vertical direction and the radial direction (the width direction of the engaging member 51). When inserting the lower bent portion 515 into the insertion groove, it is elastically deformed so that the interval between the protruding portions 511 becomes narrow. The shape of the first peripheral portion 501 is linear, formed by cutting linearly at a portion facing across the center of a virtual circle formed by extending the arc of the second peripheral portion 503. For this reason, the engaging portion 51 can be provided inside the virtual circle, preventing the chassis 5 from becoming larger. Further, as shown in Fig. 11(c), since the engaging portion 51 is provided so as not to protrude from the virtual circle, the peripheral wall portion 60 of the frame 6 can be configured in a cylindrical shape with a cross-section close to a perfect circle, enhancing the design quality.

[0019] The recessed portion 55 is rectangular when viewed from the back side. When viewing the chassis 5 from the back side, the opening 54 and the recessed portion 55 are positioned so as to sandwich the center of the chassis 5. In other words, they are adjacent in a direction orthogonal to the virtual line connecting the engaging portions 51. As shown in Figs. 5 and 7, the bottom wall portion 550 of the recessed portion 55 is provided with a through hole 551 for removably fixing the power supply unit 2. The bottom wall portion 550 of the recessed portion 55 is provided with a positioning through hole 552 for positioning the power supply unit 2. For the sake of distinction from the through hole 551, the through hole 552 is referred to as a positioning through hole for convenience. An opening portion 554 is provided in a portion straddling the bottom wall portion 550 of the recessed portion 55 and the side wall portion 553 located on the side opposite to the opening 54 with respect to the bottom wall portion 550. As shown in Fig. 10, the opening portion 554 is for fixing the power supply unit 2, preventing the fixing member 83 from interfering with the side wall portion 553 when the fixing member 83 is slid on the bottom wall portion 550.

[0020] (1-2) Frame Mainly described with reference to Figs. 3 and 9. The frame 6 has at least a peripheral wall portion 60 that covers the periphery of the power supply unit 2 and the battery unit 3 provided on the chassis 5, and an engaged portion 61 for attaching the frame 6 to the chassis 5. The engaged portion 61 is detachably engaged with the engaging portion 51 of the chassis 5. Here, the frame 6 further has a bottom wall portion 62 at the lower end portion of the peripheral wall portion 60. When viewed from the front-back direction, the peripheral wall portion 60 has a shape as if a pair of second peripheral edge portions 503 of the chassis 5 are provided over the entire circumference. Specifically, the peripheral wall portion 60 has a circular shape with the same radius as the arc-shaped second peripheral edge portion 503. That is, the peripheral wall portion 60 is cylindrical. Here, it has an upwardly widening tapered shape. The bottom wall portion 62 has a disc shape and has a through hole 621 for exposing the light emitting portion of the light source unit 1 to the front side. The lighting device X here can be controlled to turn on by a remote controller (not shown) and has a through hole 623 for receiving a signal and exposing a display portion for displaying control contents.

[0021] As shown in FIG. 9, the engaged portion 61 is constituted by an engaged member 63 provided on the peripheral wall portion 60. Here, the engaged member 63 is provided on the inner surface of the peripheral wall portion 60. Thereby, the design property of the housing 4 can be enhanced. The engaged member 63 has a groove portion 630 whose width increases toward the upper side, and a horizontal bent portion 631 that bends in the width direction from the opening edge of the groove portion 630. The engaged portion 61 is provided at the bottom portion 632 of the groove portion 630. The engaged portion 61 is configured by bending the inner side portion of the "U" - shaped groove whose upper side of the bottom portion 632 is open so as to extend toward the cylindrical axis of the peripheral wall portion 60. When the engaged member 63 is made of a metal material, the engaged portion 61 can be formed by a cut - up (L - bend) process. The groove portion 630 is configured such that its width (groove width) increases toward the upper side. Thereby, when engaging the engaging portion 51 with the engaged portion 61, it becomes easy to align the groove portion 630 with the engaging portion 51. Through-holes 633 are provided in the lateral bending portions 631 on both sides in the width direction of the groove portion 630. The through-holes 633 are long in the front-back direction. An S-shaped hook of a suspension tool (not shown) for preventing the frame 6 from falling from the chassis 5 is hooked on the through-holes 633. The engaged member 63 is fixed to the peripheral wall portion 60 by fixing means such as screws, pins, welding, etc. Here, the bottom portion 632 of the groove portion 630 is welded to the peripheral wall portion 60. A pair of side wall portions 635 constituting the groove portion 630 function as a regulating portion for regulating the movement of the engaging portion 51 in the width direction of the groove portion 630 with respect to the engaged portion 61. Also, the distance between each side wall portion 635 and the engaged portion 61 is smaller than the length in the width direction of the engaging portion 51.

[0022] (2) Light source unit This will be mainly described with reference to FIG. 2. The light source unit 1 includes a light source module 12 including a plate-shaped base 10, an LED 121 as a light source, and a light source substrate 123 on which the LED 121 is mounted, a lens body 14 covering the LED 121 of the light source module 12, and a holder 16 attached to the base 10 in a state of supporting the light source module 12 and the lens body 14. Here, the light source unit 1 includes a cover body 18 for protecting the light source module 12. Also, the light source unit 1 is connected to the power supply unit 2 via a cable 19 (see FIG. 6).

[0023] The light source unit 1 is movable in the vertical direction and is attached to the power supply unit 2 so as to be rotatable about a rotation axis in the vertical direction (hereinafter, also simply referred to as the "vertical axis"). Specifically, as shown in FIG. 7, the cylindrical portion 11 of the light source unit 1 extends in the vertical direction and is inserted into the support portion 24 of the power supply unit 2. When the light source unit 1 rotates around the cylindrical axis (parallel to the vertical direction) of the cylindrical portion 11 as shown in FIG. 15, the engaged portion 13 of the light source unit 1 engages with the engaging portion 25 of the power supply unit 2.

[0024] (3) Power supply unit As shown in Fig. 2(a), the power supply unit 2 houses, within the power supply case 21, a circuit 20 that creates lighting power from the commercial power received via the terminal block 71 to the light source unit 1, creates charging power for the battery unit 3, and drives the control unit. Here, as shown in Fig. 4, the power supply unit 2 includes a receiving unit 22 that receives a control signal from a remote controller (not shown), and an operation display unit 23 having an operation switch 231 for inspection operations and an indicator lamp 233. As shown in Fig. 2(a), the circuit 20 is configured by mounting a plurality of electronic components 201 on a circuit board 203, and also has, on the circuit board 203, a connector for connecting to the terminal block 71 and the light source unit 1, the operation switch 231, the indicator lamp 233, and the like.

[0025] As shown in Fig. 6, the power supply unit 2 has, in the power supply case 21, a support portion 24 that supports the light source unit 1 so as to be movable in the vertical direction and rotatable about the vertical axis. The support portion 24 is provided at the periphery of the power supply case 21 when viewed from below. When the light source unit 1 rotates about the vertical axis in the first direction to reach the first state (also referred to as the "open state"), the lower part of the battery unit 3 is opened. As a result, the battery unit 3 can be removed from the power supply unit 2. When the light source unit 1 rotates about the vertical axis from the first state in the second direction opposite to the first direction to reach the second state (also referred to as the "closed state"), the light source unit 1 is positioned below the battery unit 3 and the power supply unit 2, and the frame 6 can be attached to the chassis 5.

[0026] As shown in Fig. 6, when the light source unit 1 rotates about the vertical axis in the second direction to reach the second state, the power supply case 21 of the power supply unit 2 has an engaging portion 25 with which the engaged portion 13 of the light source unit 1 engages. The engaging portion 25 is provided at a position different from the support portion 24 at the periphery of the power supply case 21 when viewed from below.

[0027] When the battery unit 3 is mounted, the power supply unit 2 has a guide portion 26 in the power supply case 21 for guiding the battery unit 3 to the mounting position. The guide portion 26 has a groove portion 261 for guiding a guided portion 35 (see FIG. 4 or FIG. 5) having a "T" - shaped cross - section of the battery unit 3 so as to be movable in the vertical direction. Note that the lower end of the guide portion 26 is in a downward - widening shape, facilitating the insertion of the guided portion 35 of the battery unit 3 into the groove portion 261. As shown in FIGS. 4 and 5, the power supply unit 2 has a mounting portion 27 for detachably mounting the battery unit 3. The mounting portion 27 has a through - groove 271 in an extending portion 270 that extends in a direction orthogonal to the vertical direction and toward the battery unit 3 side. A protruding portion 383 of the battery unit 3 engages (fits) into the through - groove 271. With the guided portion 35 of the battery unit 3 positioned within the groove portion 261, when the power supply unit 2 moves upward and a protruding portion 373 fits into the through - groove 271 of the mounting portion 27 of the power supply unit 2, it has a connector 209 that is electrically connected to the connector 33 of the battery unit 3. The connector 209 is provided below the guide portion 26 as shown in FIGS. 7 and 8.

[0028] As shown in FIG. 7, the power supply unit 2 has an opening 211 for a connector of a cable 79 that connects to a terminal block 71 in the power supply case 21. The opening 211 is provided in an upper - side portion of the power supply case 21 that faces the terminal block 71. Thereby, the cable 79 connecting the power supply unit 2 and the terminal block 71 can be shortened. As shown in FIG. 6, the power supply unit 2 has an opening 212 (connector (not shown) of a cable 19 that connects to the light source unit 1). The opening 212 is provided at the bottom portion of the power supply case 21. Thereby, the cable 19 connecting the power supply unit 2 and the light source unit 1 can be shortened. Note that the length of the cable 19 is configured such that the light source unit 1 can rotate around the cylinder axis (vertical axis) of the cylindrical portion 11.

[0029] As shown in Fig. 5, the power supply unit 2 has a mounting portion 28 for mounting the power supply unit 2 on the chassis 5 on the top wall portion 21d of the power supply case 21. The mounting portion 28 has an extending portion 281 extending upward and an engaged portion 283 extending in parallel at a distance from the upper end of the extending portion 281 to the top wall portion 21d. Here, there are two mounting portions 28, and the engaged portions 283 extend so as to be separated from each other. The mounting portion 28 fits into the through hole 551 of the recessed portion 55 of the chassis 5 from below. The power supply unit 2 has a position regulating portion 29 when the power supply unit 2 is mounted on the chassis 5 on the top wall portion 21d of the power supply case 21. The position regulating portion 29 extends upward and fits into the positioning through hole 552 of the bottom wall portion 550 of the recessed portion 55 of the chassis 5 from below. The attachment of the power supply unit 2 to the chassis 5 will be described later.

[0030] (4) Battery unit As shown in Fig. 2, the battery unit 3 includes a rechargeable battery 30, a box-shaped battery case 31 for housing the battery 30, and a connector 33 (see Fig. 4 or Fig. 5) provided on the battery case 31 and electrically connected to the power supply unit 2. As shown in Figs. 4 and 5, when the battery case 31 is mounted on the power supply unit 2, the battery case 31 has a guided portion 35 for being guided to the mounting position of the power supply unit 2 and a pair of ribs 36 for smoothly moving the guided portion 35. The guided portion 35 has a "T" - shaped cross - section perpendicular to the vertical direction and is inserted into the groove portion 261 (see Fig. 6 or Fig. 7) of the guide portion 26 of the power supply unit 2 from below. The connector 33 is provided on an overhanging portion 37 that protrudes from the lower side of the guided portion 35 toward the power supply unit 2 side. The ribs 36 extend in the vertical direction parallel to the guided portion 35 and are in a pair with the guided portion 35 sandwiched therebetween.

[0031] As shown in Fig. 4, the battery unit 3 has a mounted portion 38 for detachably mounting to the power supply unit 2. The mounted portion 38 has an extended portion 381 that extends downward in a plate shape and is elastically deformable in the thickness direction, and a protruding portion 383 that is formed on the extended portion 381 and protrudes in the width direction (the thickness direction of the extended portion 381) orthogonal to the extended portion 381. When the guided portion 35 of the battery unit 3 is located in the groove portion 261 of the power supply unit 2 and the battery unit 3 is moved upward so that the protruding portion 383 abuts against the extended portion 270 of the mounting portion 27, the extended portion 381 is elastically deformed and the protruding portion 383 fits into the through groove 271 of the mounting portion 27.

[0032] (5) Terminal block unit The terminal block unit 7 includes a terminal block 71, and the terminal block 71 is attached to the chassis 5 via an attachment member 73. As shown in Fig. 3(b), the terminal block 71 is attached to the chassis 5 in a state where it does not protrude beyond the back surface of the main board portion 50 of the chassis 5. As shown in Fig. 4 or Fig. 5, the terminal block 71 has a main body portion 711 provided with connection terminals and the like inside, and an input-side connection port 712 provided on the upper surface of the main body portion 711 and connected to a commercial power supply. Thus, although the terminal block 71 is attached to the chassis 5, the input-side connection port 712 can be seen (faced) inside the chassis 5 through the opening 54, and a cable (not shown) on the commercial power supply side can be easily connected to the input-side connection port 712 through the opening 54. As shown in Fig. 4 or Fig. 5, the terminal block 71 has an output-side connection port 713 provided on the side surface of the main body portion 711 and connected to the power supply unit 2. When the terminal block 71 is attached to the chassis 5, as shown in Fig. 2(a), the output-side connection port 713 is located below the recessed portion 55 of the main board portion 50 of the chassis 5. Thereby, the wiring between the power supply unit 2 and the terminal block 71 can be easily performed inside the chassis 5. That is, it is not necessary to draw out the cable 79 connecting the power supply unit 2 and the terminal block 71 above the main board portion 50, for example, and the wiring can be easily arranged. Thereby, the workability of the lighting device X can be improved and damage to the cable 79 can be suppressed. As shown in Fig. 4, the terminal block 71 has protrusions 714, 715, and 716 that protrude downward from the bottom surface.

[0033] As shown in Fig. 4 or Fig. 5, the mounting member 73 has a bottom wall 731 to which the terminal block 71 is mounted, a pair of side walls 733 that stand upright from the edge of the bottom wall 731 to the back side, and a mounting wall 735 that bends in a direction parallel to the bottom wall 731 from the upper ends of the side walls 733 and is mounted on the peripheral portion of the opening 54 of the main board portion 50 of the chassis 5.

[0034] The bottom wall 731 has a square shape, a rectangular shape, or a shape similar thereto. The bottom wall 731 has through holes 731a, 731b and a notch 731c. The protrusion 714 of the terminal block 71 is inserted into the through hole 731a, and the protrusion 715 is inserted into the through hole 731b. Note that after the protrusions 714 and 715 pass through the through holes 731a and 731b, they fit into the fitting holes 811a and 811b of the plate member 81. During this fitting, the protrusions 714 and 715 are deformed, and the terminal block 71 is attached to the mounting member 73 (plate member 81). In this way, by pressing the terminal block 71 against the bottom wall 731, the terminal block 71 can be easily attached to the mounting member 73 (plate member 81). The protrusion 716 fits into a pair of notches 731c that face each other on the bottom wall 731. As a result, the movement of the terminal block 71 in the direction parallel to the bottom wall 731 (lateral direction) is restricted, and no lateral load acts on the protrusions 714 and 715, preventing the terminal block 71 from coming off the mounting member 73 (plate member 81).

[0035] The direction connecting the pair of side walls 733 is orthogonal to the direction in which the opening 54 and the recess 55 are arranged. That is, as shown in Figs. 4 and 7, an opening 736 is formed at the edge of the bottom wall 731 and the pair of side walls 733 on the recess 55 side. As shown in Fig. 4, the terminal block 71 has an output side connection port 713 in a state facing the opening 736, and the terminal block 71 and the power supply unit 2 can be easily connected by a cable 79. The mounting wall 735 is fixed to the chassis 5 by welding at a plurality of locations in a state of being in contact with the lower surface of the main board portion 50 of the chassis 5. Note that the mounting member 73 may function as the mounting portion 73 of the chassis 5 by being attached to the chassis 5.

[0036] (6) Fixing member As shown in FIG. 3(b), the fixing member 83 fixes the mounting state of the power supply unit 2 to the chassis 5. As shown in FIG. 4 or FIG. 5, the fixing member 83 is interposed between the mounting portion 28 extending from the through hole 551 of the bottom wall portion 550 of the recessed portion 55 of the chassis 5 and the bottom wall portion 550, thereby preventing the mounting portion 28 of the power supply unit 2 from coming out of the through hole 551. The fixing member 83 has at least a plate-shaped main body portion 830 and a through hole 831 formed in the main body portion 830. The through hole 831 has at least a wide hole portion 832 that allows the mounting portion 28 of the power supply unit 2 to be received, and a narrow hole portion 833 that is continuously formed with the wide hole portion 832 and allows only the extending portion 281 of the mounting portion 28 received in the wide hole portion 832 to move. The fixing member 83 has a locking portion 834 that locks the movement of the fixing member 83. The locking portion 834 is provided on the side opposite to the narrow hole portion 833 with respect to the wide hole portion 832 (that is, the engaging direction side). As shown in FIG. 6, the locking portion 834 extends in a shape similar to a "V" shape or an "L" shape in the direction in which the wide hole portion 832 and the narrow hole portion 833 are arranged and toward the narrow hole portion 833 (that is, the anti-engagement direction side), and has an extending portion 835 that extends in an inclined shape downward and a bent portion 836 that bends upward from the extending tip of the extending portion 835. The extending portion 835 is elastically deformable in the vertical direction, and when the fixing member 83 is slid in the engaging direction so that the extending portion 281 of the power supply unit 2 is inserted (positioned) into the narrow hole portion 833, as shown in FIG. 10(a), the bent portion 836 is configured to fit into the opening portion 554 of the bottom wall portion 550 of the chassis 5. At the site where the fixing member 83 is slid and the bent portion 836 fits into the bottom wall portion 550 of the chassis 5, as shown in FIG. 7, a notch portion 556 is formed, and the movement of the bent portion 836 in a direction orthogonal to the engaging / anti-engaging direction is restricted. When the locking portion 834 fits into the opening portion 554, the bent portion 836 abuts or faces the opening end face of the bottom wall portion 550. Thereby, the movement of the fixing member 83 in the fixed state to the anti-engaging direction side of the bottom wall portion 550 is restricted (locked). The fixing member 83 has an operation portion 838 that facilitates the fixing operation, is formed on the opposite side of the locking portion 834 with respect to the wide hole portion 832 and the narrow hole portion 833, and bends upward.

[0037] (7) Plate member The plate member 81 is attached to the chassis 5 side. Here, the plate member 81 is detachably attached to the attachment member 73 for the terminal block 71. That is, the plate member 81 is provided so as to be positioned between the battery unit 3 and the attachment member 73. The plate member 81 has a plate shape and, as shown in FIG. 4 or FIG. 5, at least a first plate portion 811 that faces or abuts against the bottom wall 731 of the attachment member 73, a second plate portion 812 and a third plate portion 813 that extend downward from the first plate portion 811, and an attachment portion 814 for attaching the plate member 81 to the attachment member 73. As shown in FIG. 6, the plate member 81 has the first plate portion 811 and the second plate portion 812 in an orthogonal state, for example, in an "L" shape. The plate member 81 further has a second folding portion 815 at the lower end portion of the second plate portion 812. As shown in FIG. 7, the plate member 81 has the first plate portion 811 and the third plate portion 813 in an orthogonal state, for example, in an "L" shape. The plate member 81 further has a third folding portion 816 at the lower end portion of the third plate portion 813. Note that the plate member 81 is formed, for example, by pressing a single metal plate.

[0038] As shown in FIG. 4, the first plate portion 811 has a rectangular shape or a shape similar to a rectangular shape corresponding to the upper surface of the battery case 31 of the battery unit 3. The first plate portion 811 has a function of fixing the terminal block 71 and has fitting holes 811a and 811b for the protrusions 714 and 715 of the terminal block 71. The protrusion 714 fits into the fitting hole 811a after passing through the through hole 731a of the mounting member 73. The protrusion 715 fits into the fitting hole 811b after passing through the through hole 731b of the mounting member 73.

[0039] The second plate portion 812 extends downward from the edge of the first plate portion 811 on the side opposite to the power supply unit 2. The space formed between the second plate portion 812 and the power supply case 21 of the power supply unit 2 allows the insertion of the battery unit 3 from below when the guided portion 35 of the battery unit 3 faces the power supply unit 2 side, and does not allow the insertion of the battery unit 3 from below when the guided portion 35 of the battery unit 3 does not face the power supply unit 2 side, for example, when the guided portion 35 faces the side opposite to the power supply unit 2. The posture in which the attachment of the battery unit 3 to the power supply unit 2 is allowed is defined as the normal posture. Specifically, as shown in FIG. 10(a), when the battery unit 3 is inserted from below in a posture where the guided portion 35 of the battery unit 3 is located on the side opposite to the power supply unit 2, the upper end of the guided portion 35 interferes with the second plate portion 812. Thereby, when the battery unit 3 is not in the normal posture, it is possible to prevent the battery unit 3 from being inserted until it approaches the first plate portion 811.

[0040] As shown in FIG. 7, the third plate portion 813 extends downward from the edge on the side opposite to the mounting portion 27 of the power supply unit 2 in a direction orthogonal to the direction (opposing direction) in which the power supply unit 2 and the battery unit 3 are arranged in the first plate portion 811. The space formed between the third plate portion 813 and the mounting portion 27 of the power supply unit 2 allows the insertion of the battery unit 3 from below when the guided portion 35 of the battery unit 3 is inserted into the guide portion 26 on the power supply unit 2 side in the normal posture, and is configured not to allow the insertion of the battery unit 3 from below when the guided portion 35 of the battery unit 3 is positioned between the guide portion 26 and the support portion 24 of the power supply unit 2. Note that the guided portion 35 of the battery unit 3 does not position between the guide portion 26 and the mounting portion 27 due to the mounting portion 27 of the power supply unit 2. Specifically, as shown in FIG. 10(b), when attempting to insert the battery unit 3 from below in a posture where the guided portion 35 of the battery unit 3 is between the guide portion 26 and the support portion 24 of the power supply unit 2 and the guided portion 35 is close to or in contact with the power supply case 21, the upper surface 31a of the battery case 31 interferes with the third plate portion 813. Thereby, it is possible to prevent the battery unit 3 from being inserted until it approaches the first plate portion 811 in a state where the battery unit 3 is not in the normal posture.

[0041] As shown in FIG. 7, the attachment portion 814 has an extending portion 814a that extends parallel to the first plate portion 811 from the end of the first plate portion 811 on the side of the second plate portion 812, and a folded-back portion 814b that is folded upward at the tip of the extending portion 814a. The plate member 81 is detachably attached to the attachment member 73 by fitting the end of the bottom wall 731 of the attachment member 73 between the extending portion 814a and the folded-back portion 814b. When the edge of the bottom wall 731 of the attachment member 73 abuts against the connecting portion between the extending portion 814a and the folded-back portion 814b, the through holes 731a, 731b of the attachment member 73 and the fitting holes 811a, 811b of the plate member 81 are aligned in the vertical direction.

[0042] The second folding portion 815 and the third folding portion 816 reinforce the second plate portion 812 and the third plate portion 813. Further, by providing the second folding portion 815 and the third folding portion 816, the lower ends of the second plate portion 812 and the third plate portion 813 are not exposed, and for example, it is possible to prevent the user from being injured when the battery unit 3 is attached or detached. Also, when the battery unit 3 is being attached in a non-normal posture and interferes with the battery case 31 or the guided portion 35, it is possible to prevent the battery unit 3 from being damaged.

[0043] 3. Attachment and detachment of the power supply unit to the chassis The attachment will be described. As shown in FIG. 5, the mounting portion 28 of the power supply unit 2 is inserted into the through hole 551 of the bottom wall portion 550 of the recessed portion 55 of the chassis 5 and the wide hole portion 832 of the through hole 831 of the fixing member 83 disposed on the bottom wall portion 550. Also, the position regulating portion 29 of the power supply unit 2 is inserted into the positioning through hole 552 of the bottom wall portion 550 of the recessed portion 55 of the chassis 5. In this state, when the fixing member 83 is moved (slid) in the engaging direction (the direction away from the opening portion 54), the engaged portion 283 is positioned in the narrow hole portion 833 of the fixing member 83, and the mounting portion 28 engages with the fixing member 83. Thereby, the power supply unit 2 is detachably mounted on the chassis 5. Due to the slide of the fixing member 83 in the engaging direction, as shown in FIG. 7, the locking portion 834 of the fixing member 83 that was in contact with the bottom wall portion 550 is elastically deformed (restored) and fits into the opening portion 554 of the bottom wall portion 550 of the chassis 5, and the slide of the fixing member 83 in the anti-engaging direction is restricted (locked).

[0044] The removal will be described. The bent portion 836 (see FIG. 6) of the fixing member 83 in the locked state is moved upward, and the fixing member 83 is slid in the anti-engaging direction. Thereby, the mounting portion 28 of the power supply unit 2 is positioned within the wide hole portion 832 of the through hole 831 of the fixing member 83, and the engagement between the power supply unit 2 and the fixing member 83 is released. In this way, by sliding the fixing member 83, the battery unit 3 can be easily attached and detached without using a fixture such as a screw. Further, the depth of the recessed portion 55 is configured such that the fixing member 83 does not protrude from the recessed portion 55. Therefore, the main board portion 50 of the chassis 5 can be brought into contact with the installation surface.

[0045] 4. Mounting of the terminal block The mounting will be described. Here, it will be described assuming that the mounting member 73 is already fixed to the chassis 5 in advance. First, as shown in FIG. 5, the plate member 81 is attached to the end of the bottom wall 731 of the mounting member 73 on the side opposite to the power supply unit 2 (recessed portion 55) using its attachment portion 814. Thereafter, as shown in FIG. 4, the protrusions 714, 715 and 716 of the terminal block 71 are aligned with the through holes 731a, 731b and the notch 731c of the bottom wall 731 of the chassis 5, and the terminal block 71 is pressed toward the bottom wall 731 side to fit the protrusions 714, 715 into the fitting holes 811a, 811b of the plate member 81. Thereby, the terminal block 71 is attached to the chassis 5. In this way, by pressing the terminal block 71, the terminal block 71 can be easily attached to the chassis 5 without using a fixture such as a screw.

[0046] 5. Electrical connection of the terminal block (1) Commercial power supply side As shown in FIG. 3, since the input side connection port 712 of the terminal block 71 can be seen through the opening 54, the cable on the commercial power supply side can be easily connected (inserted) to the input side connection port 712. In particular, compared with the case where the terminal block 71 is located inside the housing (below the chassis) and the input side connection port 712 is hidden, it can be easily connected, and there is no need to route the cable inside the housing (below the chassis), improving the workability of the lighting device X. Also, for example, compared with the case where the cable 79 is inserted through the opening 736 of the mounting member 73 and then the commercial power supply side cable is connected to the input side connection port of the terminal block 71 fixed inside the housing (below the chassis), the electrical connection can be made without releasing the connection between the chassis and the frame, etc.

[0047] (2) Power supply unit For the power supply unit 2, the opening 211 for the connector of the cable 79 connected to the terminal block 71 is, as shown in Fig. 11(a), located at a position visible from the outside of the chassis 5 through the opening 54 of the chassis 5 and the opening 736 of the mounting member 73, and the cable 79 connected to the power supply unit 2 can be easily drawn out toward the mounting member 73 side. Conversely, although not shown, the output side connection port 713 of the terminal block 71 attached to the mounting member 73 is located at a position visible from below the chassis 5 through the opening 736 of the mounting member 73, and the cable 79 connected to the output side connection port 713 of the terminal block 71 can be easily drawn out toward the power supply unit 2 side. In this way, since the cable 79 etc. can be connected through the opening 54 of the chassis 5 and the opening 736 of the mounting member 73, the workability can be improved. Furthermore, as shown in Fig. 2(a), since the output side connection port 713 of the terminal block 71 is located below the recessed portion 55 of the main board portion 50 of the chassis 5, the connection between the output side connection port 713 and the cable 79 can be easily performed using the space below the recessed portion 55. Since the opening 211 for connecting the cable 79 of the power supply unit 2 and the output side connection port 713 of the terminal block 71 face each other, the cable 79 can be shortened. Thereby, cost reduction can be achieved. In particular, compared with the case where the opening of the power supply unit 2 and the output side connection port 713 of the terminal block 71 are arranged facing the same direction, the length of the cable 79 can be shortened. The terminal block unit 7 and the power supply unit 2 are located approximately at the center in the direction connecting the pair of engaging portions 51 in the chassis 5, as shown in Fig. 11(b). Since the opening 211 of the power supply unit 2 is located outside the terminal block unit 7 (mounting member 73), even when the terminal block 71 and the power supply unit 2 face each other, a connection work space for the cable 79 is secured. Also, the opening 211 of the power supply unit 2 is provided in the recessed portion 214 of the power supply case 21, and the connector 78 of the cable 79 can be easily inserted into the opening 211. Also, when attaching or detaching the battery unit 3, since the cable 79 is short, it is possible to prevent the battery unit 3 from getting caught on the cable 79.

[0048] 6. Attachment of the Frame to the Chassis The attachment will be described. Here, it will be described assuming that the battery unit 3 and the light source unit 1 are already attached to the power supply unit 2 side. First, below the engaging portion 51 of the chassis 5, the engaged portion 61 of the frame 6 is aligned with the engaging portion 51. At this time, as shown in Fig. 11(c), when viewed from below, the first peripheral portion 501 and the first extension portion 52 where the engaging portion 51 is provided have different shapes from the second peripheral portion 503 and the second extension portion 53 where the engaging portion 51 is not provided. Therefore, the position of the engaging portion 51 can be easily confirmed, and alignment can be easily performed. In particular, the shapes of the first peripheral portion 501 and the second peripheral portion 503 when viewed from below are linear and curved, respectively, and the difference in shape is easy to distinguish, making it easy to confirm the position of the engaging portion 51. Furthermore, since the engaging portion 51 protrudes from the first peripheral portion 501 and the flat portion 52 when viewed from below, the engaging portion 51 itself is easy to visually check. The protruding amount of the engaging portion 51 is preferably in the range of 5 to 7 mm from the viewpoints of easy visual inspection and prevention of enlargement of the engaging portion 51.

[0049] When the frame 6 is moved upward with the engaged portion 61 of the frame 6 aligned with the engaging portion 51 of the chassis 5, as shown in Fig. 9, the engaging portion 51 is positioned in the groove portion 630, and eventually, the engaged portion 61 abuts against the lower part of the "V"-shaped protruding portion 511 of the engaging portion 51. At this time, since the groove width of the groove portion 630 widens toward the upper end, it is easy to insert the engaging portion 51 into the groove portion 630. When the engaging portion 51 is in a state where the engaged portion 61 abuts from below and the frame 6 is further pushed upward, the engaging portion 51 elastically deforms so that the protruding portion 511 enters the inside of the flat portion 52, and the engaged portion 61 gets over the protruding portion 511. As a result, the engaged portion 61 engages with the engaging portion 51, and the frame 6 is attached to the chassis 5.

[0050] <Second Embodiment> In the first embodiment, the engaging member (mounting member) 51 constituting the engaging portion (mounting portion) is removably attached to the flat portion 52 of the chassis 5 by using the bridge portion 525 (see FIG. 8) of the chassis 5. However, the engaging portion may engage with the engaged portion 61 of the frame 6 (the engaged portion in the first embodiment is an example) to attach the frame 6 to the chassis 5. In the second embodiment, a form will be described in which the engaging member (mounting member) 2051 constituting the engaging portion (mounting portion) is attached to the chassis 2005 by a fixture. In the first embodiment, when looking at the lighting device X from the back side, the input-side connection port 712 of the terminal block 71 appeared outside the chassis 5 (see FIG. 3(b)), but it is only necessary to be able to connect a commercial power supply-side cable to the input-side connection port. In the second embodiment, a form will be described in which the terminal block 2071 is arranged so that the input-side connection port 2712 is located inside the chassis 2005. The plate member 81 in the first embodiment has a function of preventing the battery unit 3 from being attached to the power supply unit 2 in the wrong direction (see FIG. 10), but the plate member may have other functions. In the second embodiment, a form having a stopper function when attaching the battery unit 3 will be described as another function. In the second embodiment, mainly, configurations different from those in the first embodiment will be described. In the drawings for explaining the second embodiment, when the same reference numerals as those in the first embodiment are used, the configurations of the members and the like with those reference numerals are the same as those in the first embodiment. Note that the reference numerals of the members, parts, and portions according to the second embodiment are obtained by adding 2000 to the reference numerals of the corresponding members, parts, and portions in the first embodiment.

[0051] 1. Overall As shown in Fig. 12, the lighting device Z of the second embodiment includes a light source unit 1, a power supply unit 2, a battery unit 2003, a housing 2004, and a terminal block 2071 (see Fig. 13), and the housing 2004 includes a chassis 2005 and a frame 6. The lighting device Z has a plate member 2081 that prevents the battery unit 2003 from being attached in a non-normal posture.

[0052] 2. Chassis The chassis 2005 has at least a main board portion 2050 and an engaging portion 2051 for the engaged portion 61 of the frame 6. Here, it also has a peripheral plate portion composed of a first extension portion 2052 and a second extension portion 53, which will be described later. (1) Main board portion When viewed from the front and back directions, the main board portion 2050 has at least a pair of first peripheral portions 501 and a pair of second peripheral portions 503. The engaging portion 2051 is provided, for example, in two, that is, in a pair, on the pair of first peripheral portions 501 when viewed from the front and back directions. The terminal block 2071 and the power supply unit 2 are attached to the main board portion 2050. The structure for attaching the power supply unit 2 is the same as that of the first embodiment, and the description thereof is omitted. The main board portion 2050 has a recessed portion 2054 for the terminal block 2071, and has through holes 2054a and 2054b for receiving the terminal block 2071 in the recessed portion 2054, and a through hole 2054c for a cable 2078 for a commercial power supply. A part of the through hole 2054c serves as an attachment area 2054d for attaching the terminal block 2071. The recessed portion 2054 is provided at a position corresponding to the opening 54 of the first embodiment.

[0053] (2) Peripheral plate portion The chassis 2005 has a flat first extension portion 2052 extending from the first peripheral portion 501 to the front side, and a curved second extension portion 53 extending from the second peripheral portion 503 to the front side. The first extension part 2052 has a notch part 2521 or a through hole (here it is a notch part) for the overhanging part 511 of the engaging member 2051, and an attachment part 2525 for attaching the engaging member 2051. For attaching the engaging member 2051, a rivet 2059 is used, and here the attachment part 2525 is constituted by a through hole.

[0054] (3) Engaging member The engaging member 2051 has a "U"-shaped flat part 2510, an overhanging part 2511 that protrudes in a "V" shape from the connecting part that constitutes the "U" shape in the flat part 2510, a pair of lateral bending parts 2512 that bend backward from the edges of a pair of extending parts that constitute the "U" shape in the flat part 2510, an upper bending part 2513 provided at the upper end of the overhanging part 2511, and a lower bending part 2515 that bends obliquely downward from the lower edge of the flat part 2510 and toward the center side of the chassis 2005. Note that the lower bending part 2515 has a guiding function when attaching the frame 6. The engaging member 2051 has a through hole 2516 for attaching the engaging member 2051 to the chassis 2005 as a part to be attached on the flat part 2510. A rivet 2059 is used for the attachment, and the rivet 2059 passes through the through hole 2516 and the through hole 2525 of the chassis 2005.

[0055] 3. Terminal block As shown in FIG. 14, the terminal block 2071 has an input-side connection port 2712 and an output-side connection port 2713 in a main body part 2711. The main body part 2711 has a protrusion 2714 and a screw hole 2715 on a flat upper surface 2711a. The main body part 2711 has the input-side connection port 2712 at an inclined part of a triangular-wave-shaped lower surface, and the output-side connection port 2173 on a side surface opposite to the input-side connection port 2712. Note that the input-side connection port 2712 faces obliquely downward, and the F cable 2078 on the commercial power supply side is configured to be insertable from obliquely below. The terminal block 2071 has locking pieces 2716 and 2717 that extend upward from both end parts where the input-side connection port 2712 and the output-side connection port 2713 exist in the main body part 2711. The terminal block 2071 is arranged such that the upper surface 2711a abuts against the inner surface of the chassis 2005. As shown in FIGS. 12(a), 14, and 15, the protrusion 2714 on the upper surface 2711a fits into the through-hole 2054a of the chassis 2005, the screw 2079 is inserted through the through-hole 2054a of the chassis 2005 and screwed into the screw hole 2715 of the terminal block 2071, the locking piece 2716 engages with the mounting region 2054d of the through-hole 2054c of the chassis 2005, and the locking piece 2717 engages with the through-hole 2054b of the chassis 2005. Thereby, the terminal block 2071 is attached to the chassis 2005. Note that the depth of the recessed portion 2054 formed in the main board portion 2050 of the chassis 2005 is configured such that the protrusion 2714, the screw 2079, and the locking pieces 2716 and 2717 of the terminal block 2071 do not protrude above the recessed portion 2054.

[0056] 4. Plate member The plate member 2081 is formed by pressing a metal plate. As shown in FIGS. 16(b) and (c), the plate member 2081 has at least a first plate portion 2811 that is parallel to the main board portion 2050 of the chassis 2005 and has a rectangular shape, a second plate portion 2812 and a third plate portion 2813 that extend downward, and attachment portions 2814 and 2815 for attaching the plate member 2081 to the chassis 2005. The second plate portion 2812 is connected to an edge parallel to the longitudinal direction of the first plate portion 2811. The second plate portion 2812 has a notch 2812a at the center in the longitudinal direction of the first plate portion 2811. The second plate portion 2812 and the third plate portion 2813 are connected in an "L" shape, and the connecting portion extends upward in a rectangular shape. The plate member 2081 has a fourth plate portion 2816 that bends upward from the long-side end of the long rectangular third plate portion 2813 on the side opposite to the second plate portion 2812. That is, the second plate portion 2812 is connected to one end along the longitudinal direction of the rectangular third plate portion 2813, and the fourth plate portion 2816 is connected to the other end, forming a "Z" shape as a whole. The plate member 2081 has a fifth plate portion 2817 that extends upward from an end along the short-side direction of the first plate portion 2811 on the side opposite to the third plate portion 2813. The attachment part 2814 bends horizontally from the upper end of the fifth plate part 2817, and the attachment part 2815 bends horizontally from the upper end of the fourth plate part 2816. The plate member 2081 is attached to the chassis 2005 by welding in a state where the attachment parts 2814 and 2815 are in contact with the inner surface of the main plate part 2050 of the chassis 2005. In FIGS. 12(a) and 13, etc., the welded part is indicated by "2089".

[0057] Similar to the first embodiment, when attempting to attach the battery unit 2003 in a posture different from the normal posture in which the battery unit 2003 can be attached to the power supply unit 2, the plate member 2081 is attached such that the second plate part 2812 and the third plate part 2813 interfere with the battery case 31. When the battery unit 2003 is attached in the normal posture, the plate member 2081 moves the battery unit 2003 upward. At this time, the connector 33 (see FIG. 4) of the battery unit 2003 is connected to the power supply unit 2 side, and as shown in FIG. 16(a), the rib part 2215 of the battery case 31 abuts against the first plate part 2811 of the plate member 2081. Thereby, it is possible to prevent the battery unit 2003 from being further moved upward in a state where the battery unit 2003 can be connected to the power supply unit 2.

[0058] 5. Wiring of the terminal block As shown in FIG. 12(b), the terminal block 2071 is arranged between the battery unit 2003 and the chassis 2005. As shown in FIG. 13(a), the terminal block 2071 is arranged such that the input-side connection port 2712 and the output-side connection port 2713 (see FIG. 14) face in a direction orthogonal to the direction in which the power supply unit 2 and the battery unit 2003 face each other. Thereby, a wide connection working space for the cable is formed around the input-side connection port 2712 and the output-side connection port 2713. Since the input-side connection port 2712 of the terminal block 2071 and the wiring opening 211 of the power supply unit 2 are provided at positions where they are substantially aligned in the vertical direction, the cable 79 can be shortened, and the routing of the cable 79 is reduced, shortening the connection work of the cable 79. Since the output-side connection port 2713 of the terminal block 2071 and the wiring opening 211 of the power supply unit 2 are provided at positions that substantially coincide in the vertical direction as shown in Fig. 13(b), the cable 79 can be shortened, and the routing of the cable 79 can be reduced, shortening the connection work of the cable 79. As shown in Fig. 13(a), the output-side connection port 2713 of the terminal block 2071 and the wiring opening 211 of the power supply unit 2 are arranged on one side in the direction orthogonal to the direction in which the terminal block 2071 and the power supply unit 2 face each other with respect to the virtual line L1 that passes through the approximate center of the chassis 2005 and extends in the direction in which the terminal block 2071 and the power supply unit 2 face each other. The surface on which the output-side connection port 2713 of the terminal block 2071 is provided and the surface on which the opening 211 of the power supply unit 2 is provided are orthogonal. Thereby, the cable 79 can be shortened, and the routing of the cable 79 can be reduced, shortening the connection work of the cable 79.

[0059] Although the embodiments have been described above, the present invention is not limited to these embodiments, and for example, the following modification examples may be used. Also, combinations of an embodiment, modification examples, and modification examples may be used. In addition, examples not described in the embodiments or modification examples, and design changes within the scope not departing from the gist are also included in the present invention.

[0060] <Modification example> 1. Lighting device The lighting devices X and Z of the embodiment may not include the battery unit 3. Also, the light source unit 1 may be movable in the front-rear (vertical) direction with respect to the power supply unit 2 and may not be rotatable around the vertical axis. Also, the battery unit 3 may be configured such that the battery case 31 is fixed to the chassis 5 or the power supply unit 2, and the internal storage battery 30 is detachable from the battery case 31. Although the lighting devices X and Z of the embodiment are installed on the ceiling, that is, assuming that the ceiling is an example of the installation surface, the installation surface may be a wall extending in the vertical direction.

[0061] 2. Chassis (1) Whole The chassis 5 had an engaging portion 51 on the first extension portion 52, but it may have the engaging portion 51 on the second extension portion 53. Note that the first extension portion 52 and the second extension portion 53 may have engaging portions (same structure or different structures). The chassis 5 supported the engaging member 51 by using the bridge 525 of the first extension portion 52, but it may be supported by other structures. For example, a notch is formed around the first peripheral edge portion 501 or the second peripheral edge portion 503 of the main board portion 50 of the chassis 5, and a bridge portion formed by bending the notch downward is provided. A portion corresponding to the upper bent portion 513 of the engaging member 51 is bent radially inward so that part or all of the bent portion is in surface contact with or close to the lower surface of the main board portion 50 for engagement. Also, a notch is formed around the first peripheral edge portion 501 or the second peripheral edge portion 503 of the peripheral plate portion of the chassis 5, and a bridge portion formed by bending the notch radially inward is provided to engage the upper bent portion 513 of the engaging member 51.

[0062] The chassis 5 had the main board portion 50 and the peripheral plate portion (the first extension portion 52 and the second extension portion 53), but it may not have the peripheral plate portion. For example, a notch is formed in the main board portion 50, and a bridge portion formed by bending the notch downward is provided. A portion corresponding to the upper bent portion 513 of the engaging member 51 is bent radially inward so that part or all of the bent portion is in surface contact with or close to the lower surface of the main board portion 50 for engagement. Also, without providing the bridge portion, the bent portion of the engaging member may be welded to the chassis. When there is no peripheral plate portion, since the full load of the frame 6 acts on the main board portion 50, it is preferable to use a plate material with a thickness of about 3 to 6 mm.

[0063] (2) Main board portion The main board portion 50 had the opening portion 54 and the recessed portion 55, but when only focusing on the attachment of the frame 6 to the chassis 5, it may not have the opening portion 54 and the recessed portion 55. The first peripheral portion 501 was linear, and the second peripheral portion 503 was curved (arc-shaped). However, if the shapes of the first peripheral portion 501 and the second peripheral portion 503 as viewed from the front and back directions are different, the difference in shape (position of the engaging portion) when viewed from the front side can be grasped, and a combination other than a straight line and a curve may also be used.

[0064] (3) Extension portion The first extension portion 52 extends from the linear first peripheral portion 501 to the front side while maintaining a constant cross-sectional shape, but it may also extend with the cross-sectional shape changing midway. The second extension portion 53 extends from the curved second peripheral portion 502 to the front side while maintaining a constant cross-sectional shape, but it may also extend with the cross-sectional shape changing midway. The chassis 5 had the first extension portion 52 and the second extension portion 53. However, for example, it may only be the extension portion where the engaging portion 51 is provided. For example, the engaging portion 51 may be provided on the first extension portion 52, and it may not have the second extension portion.

[0065] (4) Engaging portion The engaging portion 51 was provided on the first extension portion 52. However, for example, it may be provided on the curved second extension portion 53, or it may be provided on both the first extension portion 52 and the second extension portion 53. The engaging portion 51 is constituted by an engaging member for the engaging portion, but the first extension portion or the second extension portion may be constituted by a through-hole and bridge processing. The engaging portion 51 and the engaged portion 61 are configured to engage by moving the frame 6 upward with respect to the chassis 5. That is, the mounting direction is upward. Note that the removal direction is the opposite direction to the mounting direction, which is downward in the embodiment. However, when the lighting devices X and Z are attached to the wall, the mounting direction becomes one side direction in the left-right direction (the direction perpendicular to the wall), and the removal direction becomes the other side direction in the left-right direction. The engaging portion 51 and the engaged portion 61 of the embodiment are configured to engage by moving the frame 6 upward with respect to the chassis 5. However, the engaging portion and the non-engaging portion may be configured to engage, for example, by rotating the frame around the central axis of the chassis and the frame. In this case, the mounting direction is the moving direction when moving the frame to the position before rotation for engagement with respect to the chassis.

[0066] 3. Terminal block unit The terminal block unit 7 includes a terminal block 71 and a mounting member 73. However, as in the embodiment, since the mounting member 73 is integrated with the chassis 5 by welding, the terminal block unit 7 may have the terminal block 71, and the mounting member 73 may also serve as a mounting portion of the chassis 5. The mounting wall 735 of the mounting member 73 was attached to the inner surface (lower surface) of the main board portion 50 of the chassis 5. However, with the bottom wall 731 and the pair of side walls 733 inserted into the inside of the main board portion 50 from the opening 54, the mounting wall 735 may be engaged with the periphery of the opening 54 from the back side (outside). Further, it may be fixed by welding or the like in this engaged state. In consideration of the contact between the outer surface (upper surface) of the main board portion 50 and the installation surface, it is preferable that the mounting wall 735 is fixed to the inner surface of the main board portion 50. When the mounting wall 735 is fixed to the outer surface of the main board portion 50, a recessed portion may be formed in the main board portion 50 to ensure a flush state. The terminal block 71 is provided in a state where its entirety fits (enters) the main board portion 50 side. However, when it is not in contact with the installation surface of the main board portion 50, a part of the terminal block 71 may protrude from the main board portion 50 (a part is in a state of fitting into the main board portion 50 side), or the terminal block 71 may be attached to the outer surface of the main board portion 50. When a part (upper part) of the terminal block 71 protrudes, a recessed portion may be provided in the main board portion 50 by press working, and the terminal block 71 may be attached to the recessed portion.

[0067] 4. Engaging portion and engaged portion In the embodiment, the engaging portion 51 is provided on the chassis 5, and the engaged portion 61 is provided on the frame 6. However, the engaging portion and the engaged portion only need to engage with each other. For the sake of convenience, the one provided on the chassis is referred to as the "engaging portion", and the one provided on the frame is referred to as the "engaged portion", and their specific configurations may be reversed (which is the case of "(2) and (3)" described below). (1) Wire spring The engaging member 51 uses a leaf spring, but other springs may be used. Hereinafter, the case of using a wire spring will be described. When the engaging member has an overall "U" shape and engages when the engaged portion approaches the engaging portion linearly (upward in the embodiment), it has a pair of engaging portions that project in a direction orthogonal to the engaging direction (circumferential direction in the embodiment). The engaged member has a pair of through holes, recesses, or notches that elastically deform in the direction in which the pair of engaging portions of the wire spring approach and then recover and fit (engage) as the engaged portions. Specifically, the "U"-shaped wire spring (engaging member) has a bent portion that bends from its open end portion (upper end portion) in a direction orthogonal to the engaging direction, and the wire spring can be attached by providing an insertion portion into which the bent portion is inserted on the chassis or the frame. The engaged member has a groove portion (for example, "630") in which the engaging portion of the wire spring can move in the engaging direction, and the engaged portion is constituted by notches or depressions formed in a pair of side wall portions (for example, "635") that constitute the groove portion. Further, the engaged portion may be configured by bending the tip portion of the engaged portion 61 of the embodiment downward and engaging it with the lower end portion of the "U"-shaped wire spring (in this case, the engaging portion is the lower end portion). It should be noted that when viewed from the mounting direction (for example, downward) of the engaging portion, it may be configured to project outward in the radial direction of the chassis. Thereby, the engaging portion can be easily recognized when viewed from the front side.

[0068] (2) Embodiment in which the engaged portion is provided on the first extension portion and the engaging portion is provided on the frame In the embodiment, the engaging portion 51 is provided on the first extending portion (flat portion) 52 of the chassis 5, and the engaged member 63 having the engaged portion 61 is provided on the frame 6. However, the engaging portion (engaging member) 51 may be provided on the frame 6, and the engaged member 63 having the engaged portion 61 may be provided on the second extending portion (curved portion) 53 of the chassis 5. That is, an opening portion and a bridge portion corresponding to the opening portion 521 and the bridge portion 525 are formed on the frame 6, and with the overhanging portion 511 of the engaging member 51 facing the inner side in the radial direction of the frame 6, the upper bent portion 513 is disposed at the upper end portion of the opening portion of the frame 6, and the lower bent portion 515 is disposed on the bridge portion. Further, it can be implemented by forming the portion of the bottom portion 632 of the engaged member 63 that abuts on the second extending portion (curved portion) 53 to form a curved surface similar to the second extending portion (curved portion) 53.

[0069] (3) Aspect in which the engaged portion is provided on the second extending portion and the engaging portion is provided on the frame In the embodiment, the engaging portion 51 is provided on the first extending portion (flat portion) 52 of the chassis 5, and the engaged member 63 having the engaged portion 61 is provided on the frame 6. However, the engaging portion (engaging member) 51 may be provided on the frame 6, and the engaged member 63 having the engaged portion 61 may be provided on the second extending portion (curved portion) 53 of the chassis 5. That is, an opening portion and a bridge portion corresponding to the opening portion 521 and the bridge portion 525 are formed on the frame 6, and with the overhanging portion 511 of the engaging member 51 facing the inner side in the radial direction of the frame 6, the upper bent portion 513 is disposed at the upper end portion of the opening portion of the frame 6, and the lower bent portion 515 is disposed on the bridge portion. Further, it can be implemented by forming the portion of the bottom portion 632 of the engaged member 63 that abuts on the second extending portion (curved portion) 53 to form a curved surface similar to the second extending portion (curved portion) 53.

[0070] <Others> 1. Wiring In the lighting device described in the prior art, the output-side connection port of the terminal block and the opening for connecting the cable of the power supply unit are provided in the same direction. For this reason, there is a problem that the cable for connecting the terminal block and the power supply unit becomes long. On the other hand, the lighting device described in the embodiment includes a terminal block and a power supply unit, and the connection port for the power supply unit in the terminal block and the opening for the terminal block in the power supply unit are provided in a state where they face each other or in a state where the virtual plane including the connection port and the virtual plane including the opening intersect. Thereby, the cable can be shortened. Thus, when paying attention to the cable length, it defines the positional relationship among the terminal block, the power supply unit, and the cable, and the configurations such as the housing, the light source unit, and the battery unit are not particularly limited. Note that the embodiment in which the connection port and the opening face each other is the first embodiment, and the embodiment in which the virtual planes intersect is the second embodiment (in the case where the virtual planes are orthogonal). In a lighting device with an issue of cable length, when viewed from the back side, the connection port of the terminal block and the opening of the power supply unit are located on one side in the direction orthogonal to the virtual line passing through the central axis of the device and extending in the direction in which the terminal block and the power supply unit are arranged. Thereby, the cable can be shortened. In a lighting device with an issue of cable length, when viewed from the back side, the opening of the power supply unit is provided on the (input side) connection port side of the terminal block in the power supply unit. Note that the terminal block 71 may be arranged on the back side of the chassis 5 as in the first embodiment, or the terminal block 2071 may be arranged on the front side of the chassis 2005 as in the second embodiment. Also, the attachment of the terminal block to the chassis side may be a method other than the first and second embodiments.

[0071] 2. Misinsertion of the battery unit In the lighting device described in the prior art, by looking at the shape of the battery unit, there is no attempt to attach the battery unit to the power supply unit in an incorrect posture. However, when the battery unit has a simple shape such as a box shape, there is a problem that it is difficult to determine whether the posture is incorrect from the shape of the battery unit. In contrast, the lighting device described in the embodiment includes a power supply unit, a battery unit that is removably attached to the power supply unit, and a regulating member that regulates the attachment of the battery unit to the power supply unit when an attempt is made to attach the battery unit to the power supply unit in a state where the posture of the battery unit is not the normal posture. Thereby, it is possible to regulate the attachment of the battery unit to the power supply unit in an incorrect posture. Thus, when focusing on the attachment of the battery unit, it defines the positional relationship among the power supply unit, the battery unit, and the regulating member, and the configurations such as the housing and the light source unit are not particularly limited.

Explanation of Reference Signs

[0072] X Lighting device 1 Light source unit 2 Power supply unit 3 Battery unit 5 Chassis 6 Frame 50 Main board part 52 First extension part 53 Second extension part 501 First peripheral part 503 Second peripheral part

Claims

1. A chassis, and a frame detachably attached to the chassis in the vertical direction are provided, the chassis includes a main board portion and an engaging portion, the frame has an engaged member having an engaged portion with which the engaging portion engages at the bottom of a groove portion, the main board portion has a pair of first peripheral portions whose peripheral edge shape is a first shape when viewed from below the main board portion, and a pair of second peripheral portions whose shape is a second shape different from the first shape, the engaging portion is provided on the pair of first peripheral portions or the pair of second peripheral portions when viewed from below, the engaging portion has an overhanging portion that protrudes outside the chassis, by pushing up the frame in a state where the engaged portion abuts against the engaging portion from below, the engaging portion is elastically deformed, and the engaged portion engages with the engaging portion, the groove portion widens as it goes from bottom to top lighting device.

2. The engaging portion has an upper bent portion that bends upward from the upper end of the overhanging portion and a lower bent portion that bends downward from the lower end of the overhanging portion The lighting device according to claim 1.

3. the first shape is linear when viewed from below, the second shape is curved when viewed from below, the engaging portion is provided on the first peripheral portion The lighting device according to claim 1 or 2.

4. the chassis has a flat portion extending in a direction away from the main board portion on the first peripheral portion, the engaging portion is provided on the flat portion The lighting device according to any one of claims 1 to 3.

5. a terminal block for connecting to a commercial power supply side, a light source unit, and a power supply unit connected to the terminal block and generating lighting power for the light source unit, the chassis has a mounting portion for mounting the terminal block and an opening for the terminal block on the main board portion, the mounting portion has a bottom wall on which the terminal block is mounted, a side wall erected from an edge of the bottom wall, and a mounting wall mounted on a peripheral portion of the opening of the main board portion, the terminal block has a connection port with the commercial power supply facing the opening, and a connection port with the power supply unit facing an area where the side wall is not provided in the mounting portion The lighting device according to any one of claims 1 to 4.

6. the power supply unit has a power supply case for housing a circuit board, The power supply case has an opening for electrically connecting the terminal block and the circuit board. The terminal block has a connection port for connection to the circuit board in a state facing the opening of the power supply case. and has The lighting device according to claim 5.

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