Lighting device

Abstract

To provide a lighting device with easily replaceable batteries. [Solution] The lighting device 10 of the embodiment comprises a long fixture body 11, a battery 14, a protruding part 101, a case 102, and a light source unit 300. The fixture body 11 has a bottom surface 19 and an opening 22. One end of the protruding part 101 is fixed to the bottom surface 19, and the other end protrudes from the bottom surface 19 toward the opening 22. The case 102 has a mounting part 106 on which the battery 14 is placed, and is detachable from the other end of the protruding part 101 with the battery 14 placed on the mounting part 106. The light source unit 300 is positioned in the opening 22 of the fixture body 11.

Description

Technical Field

[0001] Embodiments of the present invention relate to lighting devices.

Background Art

[0002] Conventionally, as a lighting device having a battery, a long instrument body has a recess, and the battery is fixed to the instrument body by screwing a fixing bracket to the bottom surface of the recess of the instrument body. However, in such a lighting device, since the recess is narrow, it is difficult to screw it to the bottom surface of the recess, and the battery replacement work is troublesome.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] The problem to be solved by the present invention is to provide a lighting device in which the battery can be easily replaced.

Means for Solving the Problems

[0005] The lighting device of the embodiment includes a long instrument body, a battery, a protruding portion, a case, and a light source unit. The instrument body has a bottom surface portion and an opening portion. One end side of the protruding portion is fixed to the bottom surface portion, and the other end side protrudes from the bottom surface portion toward the opening portion. The case has a mounting portion on which the battery is mounted, and is detachable from the other end side of the protruding portion with the battery mounted on the mounting portion. The light source unit is disposed at the opening of the instrument body.

Effects of the Invention

[0006] According to the embodiment, it can be expected to facilitate the replacement of the battery.

Brief Description of the Drawings

[0007] [Figure 1] This is a perspective view of a lighting device showing one embodiment. [Figure 2] This is a perspective view of the same lighting device with the first light source unit removed. [Figure 3] This is a bottom view of the same lighting device with the first light source unit removed. [Figure 4] This is a magnified view of the same lighting device with its case removed. [Figure 5] This is a partially exploded view showing the same lighting device with its case removed. [Figure 6] A cross-sectional view showing the location of the terminal block for the same lighting device. [Figure 7] This is a cross-sectional view showing the internal configuration of the same lighting device. [Figure 8] This is an exploded perspective view showing the second light source unit of the same lighting device. [Figure 9] This is a perspective view showing the second light source unit of the same lighting device. [Modes for carrying out the invention]

[0008] One embodiment will be described below with reference to the drawings.

[0009] Figures 1 and 2 show the lighting device 10. The lighting device 10 is installed on a surface such as a ceiling and is an emergency lighting device that lights up using an emergency battery in the event of a power outage of the normal external power supply. Hereafter, the lighting device 10 will be described as being installed on a ceiling, with the front side in the direction of light irradiation being the lower side and the back side opposite the direction of light irradiation being the upper side.

[0010] The lighting device 10 comprises a long fixture body 11 and a light source unit 300 arranged on the fixture body 11, which includes a first light source unit 12, a long, normally operated light source unit detachably fixed to one end of the fixture body 11 in the longitudinal direction, and a second light source unit 13, an emergency light unit fixed to the other end of the fixture body 11 in the longitudinal direction. The lighting device 10 is long and configured as a base light type in which the light-emitting area of ​​the first light source unit 12 is linear along the longitudinal direction.

[0011] Figures 1 to 7 show the fixture body 11. The fixture body 11 comprises a long main body portion 17 and end plates 18 provided at both ends of the main body portion 17 in the longitudinal direction. The main body portion 17 comprises a bottom portion 19 which is the mounting surface to the ceiling, two opposing side portions 20 provided downward from both sides in the width direction, which is the short direction intersecting the longitudinal direction of the bottom portion 19, and two reflective surface portions 21 provided so as to expand diagonally upward from the lower ends of these side portions 20.

[0012] An opening 22 is formed on the lower side of the fixture body 11 between the side portions 20 on both sides, which are the lower side of the fixture body 11, and the end plates 18 on both ends, facing the bottom portion 19. A first recess 23 is formed inside the fixture body 11, with the lower side opening. The first light source unit 12 and the second light source unit 13 are arranged in the opening 22.

[0013] The fixture body 11 has a wiring hole 105 through which a power line supplying AC power from an external power source, which is a commercial AC power supply, is inserted, and multiple mounting holes for attachment to the ceiling surface using suspension bolts or screws.

[0014] In addition, inside the instrument body 11, there are a pair of mounting brackets 103, a terminal block 100 connected to an external electric wire inserted through a wiring hole 105, a power supply unit 104 connected to the terminal block 100 and converting the power supplied from the terminal block 100 to supply it to the first light source unit 12, a pair of protruding portions 101 protruding from the bottom surface portion 19 of the instrument body 11 toward the opening portion 22, an emergency battery 14, a case 102 that is detachable from the protruding portion 101 and can mount the battery 14 inside the instrument body 11, a fixing member 110 that fixes the case 102 to the protruding portion 101, and a second light source unit 13.

[0015] The mounting brackets 103 are formed of metal and are provided at two locations near both ends in the longitudinal direction of the bottom surface portion 19.

[0016] The wiring hole 105 is provided in a substantially circular shape on the central side in the longitudinal direction of the instrument body 11, and a power supply line from the outside is inserted and drawn into the instrument body 11.

[0017] The terminal block 100 has a plurality of connection holes, is on the central side of the instrument body 11 rather than the mounting brackets 103 arranged at both ends in the longitudinal direction of the instrument body 11, and is disposed on one end side in the longitudinal direction of the instrument body 11 with respect to the wiring hole 105. Also, the power supply line inserted through the wiring hole 105 is connected, and it is fixed to the bottom surface portion 19 of the instrument body 11 by screwing or the like.

[0018] Note that the terminal block 100 may be on the central side of the instrument body 11 rather than the mounting brackets 103 arranged at both ends in the longitudinal direction of the instrument body 11, and may be disposed on the other end side in the longitudinal direction of the instrument body 11 with respect to the wiring hole 105.

[0019] In a front view seen from below, the power supply unit 104 is on the side opposite to the terminal block 100 with respect to the wiring hole 105, and is fixed by screwing or the like on the other end side in the longitudinal direction. Also, the power supply unit 104 is connected to the terminal block 100, converts the power supplied from the terminal block 100, and supplies power to the first light source unit 12.

[0020] The power supply unit 104 may be positioned in the same direction as the terminal block 100 with respect to the wiring hole 105 when viewed from below.

[0021] The battery 14 is positioned on one end of the device body 11 in the longitudinal direction, closer to the terminal block 100, and closer to the center of the device body 11, closer to the mounting bracket 103. Furthermore, as shown in Figure 7, a separation distance a is provided between the outer casing of the battery 14 closest to the mounting bracket 103 and the outer casing of the mounting bracket 103 closest to the battery 14, and a separation distance b is provided between the outer casing of the battery 14 closest to the terminal block 100 and the outer casing of the terminal block 100 closest to the battery 14.

[0022] The battery 14 is a rechargeable secondary battery, such as a nickel-metal hydride battery or a lithium-ion battery. The battery 14 is also provided with a battery connection line that can be connected to the power supply unit 33 of the second light source unit 13, which will be described later. Under normal circumstances, it charges with power supplied from the power supply unit 33, and in emergencies such as power outages, it supplies power from the battery 14 to the power supply unit 33 to light up the second light source unit 13.

[0023] The case 102 includes a plate-shaped mounting portion 106 extending in the longitudinal direction of the device body 11, a pair of side plate portions 107 rising from both ends of the mounting portion 106 in the longitudinal direction toward the device body 11, guide plate portions 111 rising toward the device body 11 from both ends of the mounting portion 106 in the short direction toward the device body 11 and shorter than the length of the side plate portions 107, and a pair of mounting portions 108 forming plate-shaped flanges that protrude in the longitudinal direction of the device body 11 from the upper ends of the pair of side plate portions 107 that protrude toward the device body 11, with mounting holes 109 formed in the mounting portions 108 through which the protruding portion 101 is inserted. The battery 14 is also mounted on the mounting portion 106.

[0024] The protruding portion 101 is located at one end of the fixture body 11, slightly above the center in the longitudinal direction, and the protruding portions 101 are spaced apart from each other in the longitudinal direction of the fixture body 11. Furthermore, one end of the protruding portion 101 is fixed to the bottom surface portion 19 with a screw or the like, and the other end protrudes toward the opening 22 of the fixture body 11. As shown in Figure 5, the protruding portion 101 has a support column portion 200 extending from one end and a threaded portion 201 provided on the other end. The threaded portion 201 on the other end is inserted through the mounting hole 109 of the case 102.

[0025] As shown in Figures 5 and 6, the support column portion 200 of the protruding portion 101 is larger than the diameter of the mounting hole 109 provided in the mounting portion 108, while the threaded portion 201 on the other end is smaller than the diameter of the mounting hole 109. Therefore, the case 102 is not positioned on the bottom surface portion 19 side of the boundary between the support column portion 200 and the threaded portion 201 of the protruding portion 101, and there is a gap 120 between the device body 11 and the case 102.

[0026] Furthermore, as shown in Figure 6, the length of the support column 200 extending from the bottom surface 19 of the protrusion 101 toward the opening 22 is longer than the length extending toward the opening 22 of the terminal block 100. Therefore, when the case 102 is attached to the threaded portion 201 on the other end of the protrusion 101, the case 102 is positioned closer to the opening 22 than the terminal block 100.

[0027] The fixing member 110 is formed in a substantially cylindrical shape and has a screw hole that can engage with the threaded portion 201 at the other end of the projection 101. When the threaded portion 201 at the other end of the projection 101 is inserted through the mounting hole 109 of the case 102, the threaded portion 201 at the other end of the projection 101 engages with the screw hole of the fixing member 110 and is screwed in, thereby fixing the case 102 to the projection 101.

[0028] Next, Figures 1 to 3 show the first light source unit 12. The first light source unit 12 is formed in an elongated shape and comprises a cylindrical cover 26, caps 27 provided at both ends of the cover 26, and a mounting spring (not shown) that can engage with the mounting bracket 103 of the fixture body 11. At least the protruding region 12b of the cover 26 is light-transmitting. Inside the cover 26 is a light source (not shown) comprising a chassis inserted and disposed inside the cover 26 and a regular light source module having a regular light source such as an LED, which is disposed on the lower side of the chassis.

[0029] The protruding region 12b of the cover 26 and cap 27 is a convex shape in which the cross-section in the width direction protrudes downward. It is formed in a curved shape.

[0030] On the other hand, the connection wire from the cap 27, which is connected to the regular light source unit, is electrically connected to the power line that is drawn into the fixture body 11.

[0031] The mounting springs are, for example, torsion springs and are provided at two locations near both ends in the longitudinal direction of the first light source unit 12. The mounting springs 28 are also detachably attached to the mounting brackets 103 of the fixture body 11. The mounting springs 28 are configured to temporarily suspend the first light source unit 12 from the fixture body 11 by hooking them onto the mounting brackets 103 of the fixture body 11 while the springs 28 are pulled up from the chassis, and then to attach the first light source unit 12 to the fixture body 11 by pushing it up, and to maintain that attached state.

[0032] Next, Figures 8 and 9 show the second light source unit 13. The second light source unit 13 comprises a housing 30, an emergency light source 31 fixed to the housing 30, a lens 32 facing the emergency light source 31, a power supply unit 33 which is an emergency lighting unit housed inside the housing 30, and a decorative frame 35 fixed to the housing 30. The longitudinal length of the fixture body 11 is shorter than that of the first light source unit 12.

[0033] The housing 30 is integrally formed, for example, from die-cast aluminum. The housing 30 has a roughly rectangular opening 37 on its lower side, with a second recess 38 formed inside that opens on the lower side, and a flange portion 39 protruding from the lower end periphery. Holes 42 and 43 for attaching the decorative frame 35 with screws are provided in the flange portion 39 on one end (the side with the first light source unit 12) and the other end (the side opposite to the first light source unit 12) of the housing 30. The part of the housing 30 above the flange portion 39 is inserted into the first recess 23 of the fixture body 11.

[0034] The housing 30 is provided with a box-shaped housing section 44 that protrudes upward and houses the power supply unit 33 inside. An emergency light source arrangement section 46 is provided on the lower side of this housing section 44, with an emergency light source 31 positioned at one end (the side of the first light source unit 12).

[0035] The housing section 44 is provided in a box shape that protrudes upward, and a second recess 38 for housing the power supply unit 33 is formed inside. On one end of the housing section 44, on one side in the width direction, a wiring base section 48 is provided that protrudes upward from the upper surface side of the protruding section 45. The upper surface of the wiring base section 48 is located at an intermediate height in the vertical direction of the housing section 44, and a wire insertion hole 49 is provided on the upper surface of the wiring base section 48, with the inside of the wiring base section 48 communicating with the housing section 44. The battery connection wire drawn from the power supply unit 33 and the power supply connection wire extended from the terminal block 100 are inserted through the wire insertion hole 49. The power supply connection wire is electrically connected to the power supply unit 33, and the battery connection wire is electrically connected to the battery connection wire drawn from the battery 14.

[0036] Furthermore, the emergency light source 31 uses a light-emitting module on which semiconductor light-emitting elements such as LEDs or organic ELs are mounted on a substrate. The emergency light source 31 is combined with an annular socket 58 and fixed to the emergency light source distribution section 46 by the socket 58. The emergency light source 31 is thermally connected to the emergency light source distribution section 46, and the heat generated when it is lit is dissipated to the housing 30.

[0037] The socket 58 is attached to the emergency light source distribution section 46 by screws, with the emergency light source 31 sandwiched between the socket 58 and the emergency light source distribution section 46. The socket 58 is electrically connected to the emergency light source 31, and the wiring from the power supply unit 33 is also electrically connected to the socket 58, thereby electrically connecting the emergency light source 31 and the power supply unit 33.

[0038] Furthermore, the lens 32 is formed in the shape of a convex lens that protrudes in the direction of light irradiation, and is positioned opposite the emergency light source 31, receiving light emitted from the emergency light source 31 and emitting it in a predetermined light distribution. The lens 32 is fitted around the socket 58 and positioned relative to the emergency light source 31, and the decorative frame 35 is placed thereon.

[0039] Furthermore, the power supply unit 33 is inserted into the housing section 44 through the opening 37 of the housing 30 and is held and housed between the upper surface of the housing section 44 and the decorative frame 35 that closes the opening 37 of the housing 30.

[0040] The power supply unit 33 comprises a resin case 60 and a circuit section (not shown) housed within the case 60. The circuit section includes a charging circuit that converts external power into a predetermined charging power to charge the battery 14 when AC power is supplied, and an emergency lighting circuit that converts the battery power stored in the battery 14 into a predetermined lighting power and supplies it to the emergency light source 31 to light it during a power outage. The aforementioned power supply connection wires and battery connection wires are connected to the circuit section, and these power supply connection wires and battery connection wires are inserted through wire insertion holes 49 and brought out to the outside of the housing 30. The emergency lighting circuit of the circuit section and the emergency light source 31 are electrically connected by wiring.

[0041] The circuit section (not shown) is equipped with an inspection unit 62 for checking the lifespan of the battery 14 and for any abnormalities in the emergency light source 31. The inspection unit 62 is located on the underside of the power supply unit 33. The inspection unit 62 includes a receiver for receiving wireless signals such as infrared signals transmitted from an external terminal such as a remote control, a transmitter for transmitting inspection results to the external terminal, an inspection switch unit 63 for manually instructing the inspection, and a monitor lamp for displaying inspection results, etc.

[0042] Furthermore, the decorative frame 35 has a surface portion 68 on its front side that is formed in a convex curved shape with a cross section in the width direction that protrudes downward, so as to be continuous with the surface shape of the protruding region 12b of the first light source unit 12.

[0043] The back side of the surface portion 68 of the decorative frame 35 is formed in a concave shape, and the lower side of the housing 30 is positioned there via a packing 34. The surface portion 68 of the decorative frame 35 is attached to the holes 42 and 43 of the housing 30 with screws.

[0044] The surface portion 68 of the decorative frame 35 is provided with a light source window 69 in which the emergency light source 31 faces and the central part of the lens 32 protrudes, and an inspection window 70 in which the inspection section 62 faces.

[0045] Then, the second light source unit 13 is fixed to the fixture body 11 by screwing a screw that passes through the bottom portion 19 into the housing 30, with the housing 30 inserted into the first recess 23 of the fixture body 11 and the upper surface of the housing 44 in contact with the lower surface of the bottom portion 19 of the fixture body 11.

[0046] Next, the operation of the lighting device 10 will be explained.

[0047] The second light source unit 13 is fixed to the fixture body 11, and power supply connection wires drawn from the terminal block 100 are inserted through the wire insertion holes 49 of the second light source unit 13 and electrically connected. In addition, battery connection wires drawn from the power insertion holes 49 of the second light source unit 13 are electrically connected to the battery connection wires of the battery 14.

[0048] The battery 14, which is electrically connected to the second light source unit 13, is placed on the mounting portion 106 of the case 102, and is positioned between the fixture body 11 and the case 102 with the case 102 and the protruding portion 101 engaged.

[0049] When AC power is supplied to the lighting device 10 from an external source, the AC power is supplied via the terminal block 100 to the power supply unit 104 of the first light source unit 12 and the power supply unit 33 of the second light source unit 13. In the first light source unit 12, the power supply unit 104 converts the AC power into a predetermined lighting power and supplies it to the light source, causing the light source to light up. In the second light source unit 13, the charging circuit of the power supply unit 33 converts the AC power into a predetermined charging power and charges the battery 14.

[0050] Furthermore, if a power outage occurs and the lighting device 10 is no longer supplied with AC power from an external source, the first light source unit 12 will turn off. The second light source unit 13 operates using power discharged from the battery 14, converts the power from the battery 14 into a predetermined lighting power, and supplies it to the emergency light source 31, causing the emergency light source 31 to light up.

[0051] Furthermore, when inspecting the second light source unit 13, the operator uses a remote control to send an inspection signal to the inspection unit 62 of the second light source unit 13. When the power supply unit 33 of the second light source unit 13 receives the inspection signal to the inspection unit 62, it enters inspection mode and uses the power of the battery 14 to illuminate the emergency light source 31 for a predetermined inspection period, determining the status of the emergency light source 31 and the lifespan of the battery 14. The inspection operation and inspection results are displayed on the monitor lamp of the inspection unit 62. The operator can then visually check the monitor lamp of the inspection unit 62 to confirm the inspection results or check the inspection results received on the remote control. Note that the inspection operation of the second light source unit 13 can also be performed by operating the inspection switch unit 63.

[0052] Next, we will explain the procedure for replacing battery 14.

[0053] First, the first light source unit 12 is pulled down from the fixture body 11 installed on the ceiling surface, the mounting spring is hooked onto the mounting bracket 103 to temporarily suspend the first light source unit 12, and the wiring connecting the first light source unit 12 and the power supply unit 104 is removed.

[0054] Next, the first light source unit 12 is removed from the fixture body 11.

[0055] Next, the battery connection wire of the battery 14, which is connected to the battery connection wire drawn out from the power supply unit 33 of the second light source unit 13, is disconnected from the battery connection wire.

[0056] Next, the fixing member 110 is manually rotated counterclockwise and removed from the protruding part 101.

[0057] Next, pull the case 102 downwards, towards the side with the light source, and remove the case 102 and battery 14 from the protruding part 101.

[0058] Next, remove the battery 14 from the mounting portion 106 of the case 102 and place the new battery 14 on the mounting portion 106 of the case 102. Then, with the battery 14 placed on the mounting portion 106, insert the threaded portion 201 on the other end of the protruding portion 101 through the mounting hole 109 provided in the mounting portion 108 of the case 102.

[0059] Next, the fixing member 110 is attached to the threaded portion 201 on the other end of the protruding portion 101 that is inserted through the mounting hole 109, and rotated clockwise to fix the case 102 to the threaded portion 201 on the other end of the protruding portion 101.

[0060] Next, connect the battery connection wire of battery 14 to the battery connection wire of power supply unit 33.

[0061] Next, the mounting spring of the first light source unit 12 is hooked onto the mounting bracket 103 of the fixture body 11, putting it into a temporary suspension state.

[0062] Next, the first light source unit 12 and the power supply unit 104 are connected by wiring.

[0063] Finally, the first light source unit 12 is pushed up onto the fixture body 11, completing the battery replacement process for the battery 14.

[0064] In the lighting device 10 configured as described above, a case 102 containing a battery 14 is fixed via a fixing member 110 to the other end of a protruding portion 101 that extends from the bottom surface 19 of the fixture body 11 toward the opening 22. Therefore, the battery 14 can be replaced by performing installation work near the opening 22. As a result, unlike in the past, the worker does not need to reach their hand or a screwdriver or other tools into the bottom surface 19 of the fixture body 11 when replacing the battery 14, making the replacement work easier.

[0065] Furthermore, when the battery 14 is attached to the fixture body 11 by the case 102, a gap 120 is provided between the bottom surface 19 of the fixture body 11 and the mounting portion 108 of the case 102. As a result, the battery 14 is not sealed by the fixture body 11 and the case 102, and the heat from the battery 14 can be dissipated through the gap 120 into the space between the fixture body 11 and the first light source unit 12.

[0066] Furthermore, the guide plate portion 111 of the case 102 is shorter than the side plate portion 107 and has a larger gap than the gap 120. Therefore, when the battery 14 is attached to the fixture body 11 by the case 102, the heat from the battery 14 can be dissipated through the space between the fixture body 11 and the first light source unit 12.

[0067] Furthermore, when the battery 14 is attached to the fixture body 11 by the case 102, it is preferable that there is a gap between the bottom surface 19 of the fixture body 11 and the battery 14 so that they do not come into contact. By providing a gap between the bottom surface 19 and the battery 14, the heat from the battery 14 can be dissipated into the space between the fixture body 11 and the first light source unit 12, and the external load on the battery 14 can be reduced because the battery 14 is not compressed by the bottom surface 19 and the case 102.

[0068] Furthermore, since the mounting portion 108 of the case 102 is positioned closer to the opening 22 of the fixture body 11 than the terminal block 100, the terminal block 100 does not get in the way when attaching or detaching the case 102.

[0069] Furthermore, since the distance a between the mounting bracket 103 and the battery 14 is longer than the distance b between the terminal block 100 and the battery 14, a wiring space can be provided between the battery 14 and the mounting bracket 103 which is located on one end of the main body of the device 11 in the longitudinal direction.

[0070] The wiring space may be provided between the battery 14 and the terminal block 100. In this case, the distance b between the terminal block 100 and the battery 14 is longer than the distance a between the mounting bracket 103 and the battery 14, allowing for a wiring space to be provided between the battery 14 and the terminal block 100.

[0071] Furthermore, although the above-described embodiment shows a configuration in which the second light source unit 13 is arranged on the other end of the fixture body 11 in the longitudinal direction, the configuration is not limited to this, and for example, the second light source unit 13 may not be arranged. In this case, the light source 29 may be lit by an external power source under normal circumstances, and the light source 29 may be lit by the power of the battery 14 in an emergency.

[0072] Furthermore, although the above-described embodiment shows an embodiment in which there is an air gap between the device body 11 and the battery 14, the embodiment is not limited to this, and for example, a heat dissipation sheet may be provided between the device body 11 and the battery 14, and the heat from the battery 14 may be dissipated to the device body 11 via the heat dissipation sheet.

[0073] Furthermore, in the above-described embodiment, the case 102 is attached by having a threaded portion 201 on the other end of the protrusion 101 and engaging with the threaded hole of the fixing member 110. However, the embodiment is not limited to this, as long as the case 102 is attached to the other end of the protrusion 101. For example, the other end of the protrusion 101 and the fixing member 110 may have magnets and be fixed by magnetic force, or the mounting portion 108 of the case 102 may have a magnet and be attached by magnetic force.

[0074] While several embodiments of the present invention have been described, these embodiments are presented as examples only and are not intended to limit the scope of the invention. These novel embodiments can be carried out in a variety of other forms, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. These embodiments and their variations are included in the scope and spirit of the invention, as well as in the claims of the invention and its equivalents. [Explanation of Symbols]

[0075] 10 Lighting devices 11. Main body of the device 12. First light source unit 13. Second light source unit 14 Batteries 19 Bottom part 23 First recess 22 Opening 100 terminal block 101 Protrusion 102 cases 103 Mounting bracket 104 Power supply section 105 Wiring hole 106 Mounting section 107 Side plate part 108 Mounting part 109 mounting holes 110 Fixing member 120 void 200 Support section 201 Threaded part 300 light source units

Claims

1. A long, rectangular instrument body having a bottom and an opening, Batteries and One end of the protruding portion is fixed to the bottom surface, and the other end of the protruding portion extends from the bottom surface toward the opening, A case having a mounting portion on which the battery is placed, and which can be attached to the other end of the protruding portion with the battery placed on the mounting portion, A light source unit is placed in the aforementioned opening, A lighting device equipped with this.

2. The case has a mounting portion attached to the other end of the protrusion, and when attached to the protrusion, the mounting portion has a gap between it and the bottom surface of the main body of the device. The lighting device according to claim 1.

3. The main body of the device is provided with a terminal block on its bottom surface. The mounting portion of the case is located on the opening side of the terminal block. The lighting device according to claim 2.

4. The device body has a pair of mounting brackets on its longitudinal end side, The battery is positioned closer to the longitudinal end of the device body than the terminal block, and closer to the center of the device body than the mounting bracket, and the distance between the mounting bracket and the battery is longer than the distance between the terminal block and the battery. The lighting device according to claim 3.

5. The device body has a pair of mounting brackets on its longitudinal end side, The battery is positioned closer to the longitudinal end of the device body than the terminal block, and closer to the center of the device body than the mounting bracket, and the distance between the terminal block and the battery is longer than the distance between the mounting bracket and the battery. The lighting device according to claim 3.

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