Renewal method of luminaire and luminaire

Abstract

To provide a renewal method of a luminaire capable of improving workability, and to provide the luminaire.SOLUTION: A renewal method of a luminaire 10 includes steps of: removing an existing light source unit from a luminaire body 11; removing a power source line 26 connected to an existing terminal block 28 of the luminaire body 11; connecting the power source line 26 to a first terminal block part 71; engaging a light source unit side mounting part 44 with a luminaire body side mounting part 30, and arranging the light source unit 12 below the luminaire body 11; connecting the first terminal block part 71 with a second terminal block part 72 of the light source unit 12 through a gap between the luminaire body 11 and the light source unit 12; and mounting the light source unit 12 on the luminaire body 11 by the light source unit side mounting part 44 and the luminaire body side mounting part 30 with which the light source unit side mounting part 44 is engaged.SELECTED DRAWING: Figure 8

Description

[Technical field]

[0001] An embodiment of the present invention relates to a method for renovating a lighting device and a lighting device. [Background technology]

[0002] Conventionally, configurations and renewal methods have been proposed for replacing existing light sources, such as fluorescent lamps, installed in existing lighting devices with new light source units using LEDs or the like.

[0003] There is also a lighting device that includes a fixture body that is installed on a ceiling surface and a light source unit that is detachably attached to the fixture body. In this lighting device, a terminal block to which a power line is connected is attached to the fixture body, and power is input through the terminal block.

[0004] In such lighting devices, the light source unit may need to be replaced due to the lifespan of the light source in the light source unit or due to a malfunction. In addition, since the terminal block through which electricity flows may be degraded, it is desirable to replace the terminal block when replacing the light source unit. However, the terminal block is often screwed to the main body of the fixture, which makes the replacement work time-consuming and problematic in terms of workability. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] Patent No. 6414775 Summary of the Invention [Problem to be solved by the invention]

[0006] The problem to be solved by the present invention is to provide a lighting device and a method for renovating a lighting device that can improve workability. [Means for solving the problem]

[0007] The method for renovating a lighting device according to the embodiment uses a first terminal block and a light source unit for renewal. The light source unit has a light source, a second terminal block to which the first terminal block is electrically connected, a power supply unit that converts power input from the second terminal block and supplies it to the light source, and a light source unit-side attachment unit. The method for renovating a lighting device is to attach the light source unit for renewal to an existing fixture body having an existing terminal block and an existing fixture body-side attachment unit to which the existing light source unit is detachably attached, in place of the existing light source unit attached to the fixture body. The method for renewing a lighting device includes the steps of removing the existing light source unit from the fixture body, disconnecting the power line connected to the existing terminal block of the fixture body, connecting the power line to the first terminal block, engaging the light source unit side mounting portion with the fixture body side mounting portion and positioning the light source unit below the fixture body, connecting the first terminal block to the second terminal block of the light source unit through between the fixture body and the light source unit, and mounting the light source unit to the fixture body by the light source unit side mounting portion and the fixture body side mounting portion with which the light source unit side mounting portion engages. Effect of the Invention

[0008] According to the embodiment, it is possible to provide a lighting device renewal method and a lighting device that can improve workability. [Brief description of the drawings]

[0009] [Figure 1] 1 is a perspective view of an illumination device showing an embodiment. [Diagram 2] FIG. [Diagram 3] FIG. 2 is a perspective view of a light source unit of the illumination device. [Figure 4] FIG. 2 is an enlarged perspective view of a light source unit of the illumination device. [Diagram 5] FIG. 2 is an enlarged perspective view of a light source unit of the illumination device. [Figure 6] FIG. [Figure 7]1A and 1B are cross-sectional views of the lighting device, in which (a) is a cross-sectional view of the first terminal block portion when it has been moved all the way down, and (b) is a cross-sectional view of the first terminal block portion when it has been moved all the way up and is in contact with the top plate portion of the fixture body. [Figure 8] 4 is a cross-sectional view of the lighting device according to the first embodiment, in which a light source unit is temporarily suspended from a fixture body of the lighting device. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0010] Hereinafter, an embodiment will be described with reference to the drawings.

[0011] 1 and 2 show a lighting device 10. The lighting device 10 is configured by reusing an existing fixture body 11 of an existing lighting device installed on the ceiling surface, which is the installation target, removing the existing light source unit attached to this fixture body 11, and attaching a new light source unit for renewal, a light source unit 12. Furthermore, in addition to the light source unit 12, a new terminal block device 13 is used.

[0012] The fixture body 11 is made of metal and is provided long. The fixture body 11 includes a top plate portion 20, side plate portions 21 on both sides bent from both sides in a short direction (also called a width direction) intersecting the longitudinal direction of the top plate portion 20, reflecting plate portions 22 on both sides protruding obliquely upward from the lower ends of the side plate portions 21, and end plate portions 23 that close both ends in the longitudinal direction, and is formed in a so-called inverted Fuji shape. A concave storage portion 24 that opens downward is formed between the top plate portion 20, the side plate portions 21 on both sides, and the end plate portions 23 on both ends. The fixture body 11 is not limited to the inverted Fuji shape, and can also be applied to various base lights, such as a trough type without a reflecting plate portion 22 and a shaded type having a shade protruding obliquely downward from the lower ends of the side plate portions 21 on both sides.

[0013] At both longitudinal ends of the top plate portion 20, there are provided a plurality of mounting holes 25 for mounting to two hanging bolts protruding from a ceiling structure. At the longitudinal center of the top plate portion 20, there is provided a wiring hole 27 for drawing a power line 26 (which may include an arm line) drawn from the ceiling surface side into the housing portion 24 of the fixture body 11.

[0014] The fixture body 11 includes an existing terminal block 28, an existing power supply section 29, and a pair of fixture body side mounting sections 30 which are existing fixture body side mounting sections, and these are accommodated in the accommodation section 24.

[0015] The existing terminal block 28 is fixed by screws to one end of the top plate portion 20 in the longitudinal direction relative to the wiring hole 27. When the existing lighting device is in use, the power line 26 is connected to the existing terminal block 28.

[0016] The existing power supply unit 29 is fixed by screws to the other end of the top plate portion 20 in the longitudinal direction, on the opposite side of the existing terminal block 28 with respect to the wiring hole 27. The existing power supply unit 29 is connected to the existing terminal block 28 by an electric wire wired to the housing portion 24. The distance between the existing power supply unit 29 and the wiring hole 27 is smaller than the distance between the wiring hole 27 and the existing terminal block 28. In other words, the distance between the existing terminal block 28 and the wiring hole 27 is larger than the distance between the wiring hole 27 and the existing power supply unit 29.

[0017] The fixture body side mounting part 30 is provided with a spring receiving metal fitting 31 attached to the underside of the top plate part 20 of the fixture body 11 at two locations near both ends in the longitudinal direction. The spring receiving metal fitting 31 protrudes substantially perpendicularly to the underside of the top plate part 20, and a hook hole 32 is provided inside the spring receiving metal fitting 31. A hook protrusion 33 protrudes upward from the center of the lower edge of the hook hole 32.

[0018] The lighting device 10 includes the above-mentioned fixture body 11, a new light source unit 12, and a new terminal block device 13.

[0019] 1 to 8 show the light source unit 12. The light source unit 12 includes a long chassis 40, a light source 41 (see FIG. 7) attached to the lower surface side of the chassis 40, a light-transmitting cover 42 attached to the chassis 40 to cover the light source 41, and a pair of light source unit side attachment parts 44 and a power supply part 45 disposed on the upper surface side of the chassis 40.

[0020] The chassis 40 is made of metal and has a long length. The chassis 40 includes a long light source attachment portion 48 and rising portions 49 that rise upward from both sides of the light source attachment portion 48 in the short direction.

[0021] The light source 41 is configured by a light source module having a long light source substrate 51 and a plurality of light emitting elements 52 mounted on the front surface side of the light source substrate 51 along the longitudinal direction. The light source substrate 51 is attached to the chassis 40 so that the rear surface side faces the lower surface side of the chassis 40. The light emitting elements 52 are semiconductor light emitting elements such as LEDs and organic EL. The light source 41 is electrically connected to a lighting power output section of the power supply section 45 by an output wire.

[0022] The light-transmitting cover 42 is made of resin, has light-transmitting and light-diffusing properties, and transmits light from the light-emitting element 52. The light-transmitting cover 42 is formed so that the cross-sectional shape in the width direction has a convex curved shape facing forward.

[0023] On the upper surface of the translucent cover 42, an opening in which the light source 41 is disposed is formed along the longitudinal direction in the central region in the width direction, and abutment portions 54 are formed along the longitudinal direction in both side regions of the opening in the width direction so that the abutment portions 54 can abut against the lower ends of the side plate portions 21 on both sides of the fixture body 11.

[0024] An end cover 43 is attached to an end of the light-transmitting cover 42. The end cover 43 is made of resin, and may be either non-light-transmitting or light-transmitting. The end cover 43 is attached to an end of the light-transmitting cover 42 held by the chassis 40, and holds the light-transmitting cover 42 to the chassis 40.

[0025] The light source unit side mounting portion 44 includes a mounting spring 56, which is mounted on the upper surface of the chassis 40 at two locations near both ends in the longitudinal direction by mounting members 57. The mounting spring 56 is, for example, a torsion spring, and a pair of coil parts 58 is held by the mounting member 57. A substantially U-shaped hook part 59 that connects one end of the pair of coil parts 58 is extended toward each end side in the longitudinal direction of the light source unit 12, and the hook part 59 can be engaged with the hook hole 32 of the spring receiving metal fitting 31. The other end of the pair of coil parts 58 is attached to the mounting member 57. The mounting spring 56 is disposed so that a spring force acts on the hook part 59 in a direction from the upper side of the chassis 40 through the end side toward the lower side. The mounting spring 56 is configured so that the hook portion 59 is pulled up from the chassis 40 against the spring force, and then inserted into the hook hole 32 of the spring receiving bracket 31 of the fixture body 11 and hooked onto the hook protrusion 33, thereby temporarily suspending the light source unit 12 on the fixture body 11. Furthermore, by pushing up the light source unit 12, the spring force of the mounting spring 56 pulls up the light source unit 12 until the abutment portion 54 of the light-transmitting cover 42 abuts against the lower end of the side panel portion 21 of the fixture body 11, thereby attaching the light source unit 12 to the fixture body 11, and maintaining the attached state.

[0026] The mounting spring 56 is not limited to a torsion spring, and a leaf spring etc. may be used. Also, the fixture body side mounting part 30 may include the mounting spring 56, and the light source unit side mounting part 44 may include the spring receiving metal fitting 31.

[0027] The power supply unit 45 is long and attached to the upper surface of the chassis 40 along the longitudinal direction, and is accommodated in the accommodation section 24 of the fixture body 11 when the light source unit 12 is attached to the fixture body 11. As shown in Fig. 6, the power supply unit 45 is attached to the upper surface of the chassis 40 in a region including a region facing the existing terminal block 28, at a position different from the existing power supply unit 29 when the light source unit 12 is attached to the fixture body 11, and at one end side in the longitudinal direction of the top plate portion 20 that is opposite the existing power supply unit 29 with respect to the wiring hole 27 of the fixture body 11.

[0028] The power supply unit 45 receives input of external power, for example from a commercial AC power source, through the terminal block device 13, converts it into a predetermined lighting power for lighting the light source 41, and supplies it to the light source 41. The terminal block device 13 (the second terminal 83 of the second terminal block 72) is electrically connected to the power input portion of the power supply unit 45, and the lighting power output portion of the power supply unit 45 and the light source 41 are electrically connected by an electric wire for supplying lighting power.

[0029] The power supply unit 45 includes a power supply board 61 on which a plurality of electronic components that constitute a power supply circuit are mounted, and a power supply case 62 that houses the power supply board 61.

[0030] The power supply board 61 is provided in an elongated shape, and the terminal block device 13 is provided at the center of the power supply board 61 in the longitudinal direction.

[0031] In the power supply case 62, a low area portion 63 is provided in an area facing the existing terminal block 28 and an area between the existing terminal block 28 and the wiring hole 27 of the device body 11, the protruding height from the chassis 40 is kept low so as not to interfere with the existing terminal block 28 and the power line 26 connected to the terminal block device 13, and a high area portion 64 is provided in an area not facing the existing terminal block 28, which is farther from the wiring hole 27 of the device body 11 than the existing terminal block 28, and the protruding height from the chassis 40 is higher than the low area portion 63. The low area portion 63 includes a first low area portion 63a facing the existing terminal block 28 and a second low area portion 63b not facing the existing terminal block 28 between the existing terminal block 28 and the wiring hole 27 of the device body 11, and the second low area portion 63b is higher in height from the chassis 40 than the first low area portion 63a.

[0032] The power supply case 62 includes a bottom plate 65 that is disposed on the upper surface of the chassis 40 and attached by screws or the like, and first to third covers 66, 67, 68 that cover the upper and both widthwise sides of the power supply board 61 housed between the bottom plate 65. The first cover 66 is disposed in the first low area portion 63a, the second cover 67 is disposed in the second low area portion 63b, and the third cover 68 is disposed in the high area portion 64. These first to third covers 66, 67, 68 are in the same height relationship from the chassis 40 as the first low area portion 63a, the second low area portion 63b, and the high area portion 64 described above.

[0033] The power supply board 61 is accommodated in the power supply case 62 from the low area portion 63 to the high area portion 64. In the low area portion 63 of the power supply board 61, electronic components such as chip components that are low in height from the power supply board 61 are mainly mounted, and in the high area portion 64, large electronic components such as transformers and electrolytic capacitors and electronic components that are high in height from the power supply board 61 are mounted. Furthermore, in the low area portion 63, among the electronic components that are low in height from the power supply board 61, electronic components that are relatively low in height may be mounted on the power supply board 61 in the first low area portion 63a, and electronic components that are relatively high in height may be mounted on the power supply board 61 in the second low area portion 63b.

[0034] Moreover, the terminal block device 13 has a first terminal block portion 71 and a second terminal block portion 72 to which the first terminal block portion 71 is detachably attached.

[0035] The first terminal block 71 has a first terminal block case 73, a plurality of electric wire connection terminals arranged within the first terminal block case 73, and a plurality of first terminals 74 (see FIG. 7) electrically connected to each of the electric wire connection terminals.

[0036] The first terminal block case 73 is made of insulating resin and is provided in a rectangular parallelepiped shape. The first terminal block case 73 is provided with a power line connection section 75 to which the power line 26 is connected on one side surface facing the wiring hole 27 of the device body 11. The power line connection section 75 is provided with a plurality of wire insertion holes 76 into which wires such as the power line 26 are inserted on one side surface of the first terminal block case 73, and a wire connection terminal is disposed inside each of the wire insertion holes 76.

[0037] The electric wire connection terminal is electrically connected to the power wire 26 inserted into the electric wire insertion hole 76. As the electric wire connection terminal, a locking terminal that prevents the inserted power wire 26 from coming loose may be used, and in this case, a release button that releases the prevention of the power wire 26 from coming loose is provided on the first terminal block case 73.

[0038] A connection surface portion 77 having a plurality of electric wire insertion holes 76 and protrusions 78 protruding from upper and lower portions of the connection surface portion 77 are provided on one side surface of the first terminal block case 73. In other words, the connection surface portion 77 is provided at a position recessed from one side surface of the first terminal block case 73.

[0039] The first terminal block 71 is provided with a first connection portion 79 electrically connected to the second terminal block 72 on the other side opposite to the power line connection portion 75 on one side. The first connection portion 79 is provided with a plurality of slit-shaped connection grooves 80 extending from the lower surface of the first terminal block case 73 to the other side. The connection grooves 80 are elongated in the up-down direction of the first terminal block case 73, have a narrow slit shape in the width direction of the first terminal block case 73, and are provided side by side in the width direction of the first terminal block case 73. The first terminals 74 are respectively arranged inside the connection grooves 80.

[0040] The first terminal block 71 has two electric wire insertion holes 76, one above the other, arranged in a row in the width direction of the first terminal block case 73. For example, a power line 26 drawn from the outside into the fixture body 11 is inserted into one of the upper and lower electric wire insertion holes 76, and an electric wire for transmission wiring that transmits power to another lighting device 10 is inserted into the other electric wire insertion hole 76. In addition to the two voltage lines of the power line 26, an earth line drawn into the fixture body 11 together with the power line 26 is also connected to the electric wire inserted into the electric wire insertion hole 76. The electric wire connection terminals arranged in the upper and lower electric wire insertion holes 76 are electrically connected and are also electrically connected to one first terminal 74.

[0041] The second terminal block 72 is provided at a longitudinal center position on the upper surface of the power supply board 61. The second terminal block 72 has a second terminal block case 82 and a plurality of second terminals 83 provided on the second terminal block case 82.

[0042] The second terminal block case 82 is made of insulating resin and is formed into a generally rectangular frame shape with a center that opens in the vertical direction. A generally rectangular opening 84 is provided in the center of the second terminal block case 82 into which the first terminal block 71 is fitted so as to be movable in the vertical direction. The opening 84 may be provided on the top and bottom surfaces of the second terminal block case 82, or the second terminal block case 82 may be provided with a bottom portion that closes the bottom side of the opening 84.

[0043] The second terminal block case 82 is provided with longitudinal wall portions 85 on both sides along the longitudinal direction of the light source unit 12 to restrict movement of the first terminal block portion 71 in the longitudinal direction of the light source unit 12 by abutting against the side surfaces of the first terminal block portion 71, and is provided with widthwise wall portions 86 on both sides along the lateral direction of the light source unit 12 to restrict movement of the first terminal block portion 71 in the width direction of the light source unit 12 by abutting against the side surfaces in the width direction of the first terminal block portion 71. The wall portion 85 on one side facing the wiring hole 27 of the fixture body 11 is provided with a notch portion 87 that faces the lower electric wire insertion hole 76 of the first terminal block portion 71 attached to the innermost position of the opening 84 of the second terminal block case 82 and prevents interference with the power line 26 inserted into the electric wire insertion hole 76.

[0044] The second terminals 83 protrude into the opening 84 from a wall 85 (the wall 85 opposite to the wall 85 provided with the notch 87) of the second terminal block case 82 located on the opposite side to the wiring hole 27 of the fixture body 11. The second terminals 83 are plate-shaped, with their plate thickness surface facing the vertical direction, and the terminal surface with the largest area arranged along the vertical direction. The plate thickness direction faces the width direction of the light source unit 12, and the second terminals 83 are arranged in parallel along the width direction of the light source unit 12.

[0045] When the first terminal block 71 is moved from above and attached to the opening 84 of the second terminal block 72, the second terminals 83 are relatively inserted into the connection grooves 80 of the first terminal block 71, and the first terminals 74 and the second terminals 83 arranged in the connection grooves 80 come into contact with each other and are electrically connected. The second terminals 83 are electrically connected to an external power input portion of the power supply circuit of the power supply board 61.

[0046] When the light source unit 12 is attached to the fixture body 11, the terminal block device 13 is accommodated in the accommodating section 24 between the wiring hole 27 and the existing power supply section 29 of the fixture body 11 and the existing terminal block 28, and between the top plate section 20 of the fixture body 11 and the chassis 40 of the light source unit 12. As shown in FIG. 7(a), in a state where the first terminal block section 71 is attached to the second terminal block section 72 (a state where the first terminal block section 71 is attached at the lowest position relative to the second terminal block section 72), there is a gap between the upper surface of the first terminal block section 71 and the top plate section 20 of the fixture body 11. Therefore, since the first terminal block 71 is merely attached to the second terminal block 72 from above and is not fixed thereto, there is a possibility that the first terminal block 71 may move upward in a direction that disengages from the second terminal block 72. However, the first terminal block 71 and the second terminal block 72 are configured to maintain an electrical connection state between them within a range in which the first terminal block 71 can move vertically between the second terminal block 72 and the top plate 20. In detail, the first terminal 74 of the first terminal block 71 and the second terminal 83 of the second terminal block 72 are always in contact with each other and an electrical connection state is maintained between the first terminal block 71 and the second terminal block 72, as shown in FIG. 7(a), and the first terminal block 71 and the second terminal block 83 of the second terminal block 72, as shown in FIG. 7(b), between the most downwardly moved position where the first terminal block 71 is attached to the second terminal block 72 and abuts against the top surface of the power supply board 61, as shown in FIG. This can be realized by appropriately setting the relationship between the vertical dimensions of first terminal 74 and second terminal 83 and the positions of the contact points between first terminal 74 and second terminal 83.

[0047] Next, a method for renovating the lighting device 10 will be described.

[0048] For an existing lighting device installed on a ceiling surface, the existing light source unit is pulled down from the fixture body 11 against the bias of the mounting spring, which is the mounting portion on the existing light source unit side, to be in a temporarily suspended state.

[0049] The connector of the electric wire electrically connecting the existing power supply unit and the light source of the existing light source unit is removed, and the existing power supply unit and the light source of the existing light source unit are separated from each other.

[0050] The mounting spring of the existing light source unit is removed from the spring receiving metal fitting 31 of the fixture body 11, and the existing light source unit is removed from the fixture body 11.

[0051] The power supply line 26 connected to the existing terminal block is removed from the existing terminal block 28.

[0052] The power line 26 is inserted into the wire insertion hole 76 of the first terminal block portion 71 and electrically connected to the wire connection terminal.

[0053] As shown in FIG. 8, the light source unit 12 for renewal is moved below the fixture body 11, and the pair of mounting springs 56 are hooked onto the pair of spring receiving metal fittings 31, so that the light source unit 12 is temporarily suspended from the fixture body 11.

[0054] The first terminal block 71 is electrically connected to the second terminal block 72 through the gap between the fixture body 11 and the light source unit 12. By fitting the first terminal block 71 into the opening 84 of the second terminal block 72 from above and moving it downward, the second terminals 83 of the second terminal block 72 are relatively inserted into the connection grooves 80 of the first terminal block 71, and the first terminals 74 and the second terminals 83 arranged in the connection grooves 80 come into contact with each other and are electrically connected.

[0055] By pushing the light source unit 12 up toward the fixture body 11, the spring force of a pair of mounting springs 56 pulls the light source unit 12 up until the abutment portion 54 of the translucent cover 42 abuts against the lower end portion of the side panel portion 26 of the fixture body 11, and the light source unit 12 is attached to the fixture body 11.

[0056] By attaching the light source unit 12 to the fixture body 11, the power supply unit 45 has its low area portion 63 facing the existing terminal block 28, and the terminal block device 13 is accommodated in the accommodation portion 24 between the wiring hole 27 of the fixture body 11 and the existing power supply unit 29 and the existing terminal block 28, and also between the top plate portion 20 of the fixture body 11 and the chassis 40 of the light source unit 12.

[0057] In this way, when renewing an existing lighting device, the fixture body 11, which is less prone to deterioration, can be reused, and the existing terminal block 28 and existing power supply unit 29, which are current-carrying parts that may deteriorate, are not used or removed, but are simply replaced with a newly configured terminal block device 13 and a light source unit 12 equipped with a power supply unit 45, thereby improving the ease of installation of the lighting device 10 to be renewed.

[0058] In addition, the terminal block device 13 has a first terminal block portion 71 to which the power line 26 pulled into the accommodating portion 24 of the fixture body 11 is connected, and a second terminal block portion 72 that is arranged on the upper surface side of the chassis 40 of the light source unit 12 and allows the first terminal block portion 71 to be attached and detached by moving it in the vertical direction and is electrically connected when attached. Therefore, there is no need to fix a new terminal block to the fixture body 11, and an electrical connection can be made simply by attaching the first terminal block portion 71 to which the electric wire 26 is connected to the second terminal block portion 72, improving workability.

[0059] Furthermore, the electric wire 26 often uses a single-strand electric wire known as an F cable, which is stiff and difficult to bend. Therefore, after the first terminal block portion 71 is attached to the second terminal block portion 72, when the light source unit 12 is attached to the fixture body 11, a force may be applied to the first terminal block portion 71 by the power wire 26.

[0060] For example, when attaching the light source unit 12 to the fixture body 11, the distance between the wiring hole 27 of the fixture body 11 and the first terminal block portion 71 becomes short, or one end of the light source unit 12 in the longitudinal direction is first attached to the fixture body 11 by abutting it and being tilted, and then the other end is attached to the fixture body 11. As a result, a force in the longitudinal direction of the light source unit 12 acts from the power line 26 on the first terminal block portion 71, or an upward force acts on the first terminal block portion 71, causing it to come off the second terminal block portion 72.

[0061] Since the second terminal block 72 has wall portions 85 on both sides corresponding to the longitudinal direction of the light source unit 12, it is possible to reliably prevent the first terminal block 71 from shifting in position or coming off even if a force in the longitudinal direction of the light source unit 12 acts on the first terminal block 71 via the power line 26. Similarly, since the second terminal block 72 has wall portions 86 on both sides corresponding to the width direction of the light source unit 12, it is possible to reliably prevent the first terminal block 71 from shifting in position or coming off even if a force in the width direction of the light source unit 12 acts on the first terminal block 71 via the power line 26. In this case, no excessive force is applied to the first terminal 74 and the second terminal 83, and deformation can be prevented.

[0062] The first terminal block portion 71 is configured to maintain an electrical connection between the first terminal block portion 71 and the second terminal block portion 72 within the range in which the first terminal block portion 71 can move vertically between the second terminal block portion 72 and the top plate portion 20. Therefore, even if the first terminal block portion 71 moves upward, in a direction in which it comes off from the second terminal block portion 72, the electrical connection between the first terminal block portion 71 and the second terminal block portion 72 can be prevented from being disconnected.

[0063] Furthermore, even if the first terminal block portion 71 moves all the way up until it abuts the top plate portion 20, the lower side of the first terminal block portion 71 is positioned inside the opening 84 of the second terminal block portion 72, so the first terminal block portion 71 will not shift out of position or come off from the second terminal block portion 72, and further, the second terminal 83 will not be exposed from between the first terminal block portion 71 and the second terminal block portion 72.

[0064] Although the lighting device 10 for renovating an existing lighting device has been described, the above-mentioned terminal block device 13 and power supply unit 45 can also be used in a newly installed lighting device 10. In the case of a newly installed lighting device 10, a newly installed fixture body without the existing terminal block 28 and existing power supply unit 29 is used instead of the above-mentioned existing fixture body 11.

[0065] Although some embodiments of the present invention have been described, these embodiments are presented as examples and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. These embodiments and their modifications are included in the scope and spirit of the invention, and are included in the scope of the invention and its equivalents described in the claims. [Explanation of symbols]

[0066] 10. Lighting Equipment 11. Equipment body 12 Light source unit 26 Power line 27 Wiring hole 28 Existing terminal block 30 Fixture body side mounting part 41 Light source 44 Light source unit side mounting part 45 Power supply section 71 1st terminal block section 72 2nd terminal block section 75 Power line connection 79 First connection part

Claims

1. A first terminal block portion; a light source unit for renewal, the light source unit having a light source, a second terminal block to which the first terminal block is electrically connected, a power supply unit that converts power input from the second terminal block and supplies the power to the light source, and a light source unit side attachment unit; Using A method for renewing a lighting device, comprising the steps of: attaching a renewal light source unit to an existing fixture body having an existing terminal block and an existing fixture body side mounting portion to which an existing light source unit is detachably attached, in place of the existing light source unit attached to the fixture body; removing the existing light source unit from the fixture body; Disconnecting a power line connected to the existing terminal block of the device body; connecting the power supply line to the first terminal block; a step of engaging the light source unit side mounting portion with the fixture body side mounting portion to dispose the light source unit below the fixture body; a step of connecting the first terminal block to the second terminal block of the light source unit through a gap between the fixture body and the light source unit; a step of attaching the light source unit to the fixture body by the light source unit side attachment portion and the fixture body side attachment portion with which the light source unit side attachment portion engages; A method for renovating a lighting device, comprising:

2. a first terminal block portion to which a power line to be removed from an existing terminal block of an existing device body is connected; a light source unit for renewal that is attached to the fixture body and includes a light source, a second terminal block to which the first terminal block is detachably connected, a power supply unit that converts power input from the second terminal block and supplies the converted power to the light source, and a light source unit side attachment part that is attached to an existing fixture body side attachment part of the fixture body; A lighting device comprising:

3. The first terminal block has a power line connection portion to which the power line is connected on one side facing a wiring hole of the storage device main body through which the power line is inserted, and a first connection portion electrically connected to the second terminal block on the other side.

3. The lighting device according to claim 2.

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