Lighting device

Abstract

To provide a lighting device that satisfies a protective function for a lamp body, and can be carried on a user's back while remaining lit and can allow a user to move with both hands free even when a power outage occurs or when movement is required to illuminate other places.SOLUTION: An LED light 2 comprises a lamp unit 4, an insertion plug 8 provided to a tip of a first electrical cord 6 so as to extend from one end of the lamp unit 4, and a connection outlet 12 provided to a tip of a second electrical cord 10 so as to extend from the other end of the lamp unit 4. The lamp unit 4 comprises a straight-tube lamp body including an LED board and a battery, and a cylindrical cover member that covering the lamp body in a substantially sealed state. When the insertion plug 8 is connected to the connection outlet 12, an LED element lights up with the battery as a power source, and the connected first and second electrical cords 6 and 10 function as a shoulder belt, thereby allowing the light to be carried on a user's back.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a lighting device, and more particularly to a pipe light type LED light. [Background technology]

[0002] Patent Document 1 discloses an uninterruptible straight-tube LED lamp that can be set in a lighting fixture to light up multiple LED chips with power supplied from a commercial power source, and can maintain its lit state even after a power outage by being configured to automatically switch the power source to a built-in battery (storage battery) in the event of a power outage. Patent Document 1 also describes that the LED lamp, which remains lit automatically in the event of a power outage, can be detached from the lighting fixture and picked up and moved. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2015-220222 Summary of the Invention [Problem to be solved by the invention]

[0004] The uninterruptible straight-tube LED lamp described in Patent Document 1 can remain lit for a certain period of time even if a power outage occurs at night during a disaster or other event, and if necessary, the LED lamp can be removed from the lighting fixture and moved while illuminating the surrounding area.

[0005] At outdoor construction sites and other locations, commercial power outlets may be available for use with lighting devices and power tools, but lighting fixtures with power input terminals on both ends for installing straight-tube LED lamps are often not available. Furthermore, since construction sites and other locations are prone to being hit by objects, LED lamps need to have protective features (shock resistance) and weather resistance, such as waterproofing, to withstand rain and other weather. In this regard, the uninterruptible straight-tube LED lamp described in Patent Document 1 is insufficient in terms of protective features and weather resistance, especially when removed from the lighting fixture in an emergency, because the LED lamp is equivalent to a bare light bulb. It is also not very portable, and there is room for improvement in these respects.

[0006] In particular, when it comes to lighting devices with LED lamps, if specifications are made to take into account impact resistance and weather resistance for outdoor use, it is expected that the weight and size will increase accordingly. This makes it difficult to carry the device by hand while it is turned on in an emergency, and it is undeniable that hands will be occupied, restricting movement in the event of a disaster.

[0007] The present invention has been made in consideration of the above points, and its purpose is to provide a lighting device that satisfies the protective function for the LED lamp body, can be turned on using only a commercial power outlet at outdoor construction sites, etc., and can be carried on the back while remaining lit, allowing movement with both hands free in the event of a power outage or when it is necessary to move to illuminate another location. [Means for solving the problem]

[0008] In order to achieve the above object, the lighting device of the present invention comprises a straight-tube lamp body (14), a cylindrical cover member (16) made of a light-transmitting material and covering the lamp body (14) in a substantially sealed state, an attachment plug (8) provided at the tip of a first electric cord (6) electrically connected to one end of the lamp body (14) and extending from one end of the cover member (16), a connecting outlet (12) provided at the tip of a second electric cord (10) electrically connected to the other end of the lamp body (14) and extending from the other end side of the cover member (16), into which the attachment plug (8) can be inserted, and a plurality of electrical outlets provided inside the lamp body (14). The lamp comprises an LED substrate (20) on which LED elements (18) are arranged in the longitudinal direction of the lamp body (14), a driving means (200) provided inside the lamp body (14) for driving the LED elements (18), and a battery (208) provided inside the lamp body (14), and is characterized in that by inserting the attachment plug (8) into a commercial power outlet (26), the LED elements (18) can be illuminated using the commercial power supply, and by inserting the attachment plug (8) into the connecting outlet (12), the LED elements (18) can be illuminated using the battery (208).

[0009] In the lighting device according to the present invention, it is desirable that the LED elements (18) powered by the battery (208) be configured to be turned on and off depending on the direction in which the attachment plug (8) is inserted into the connecting outlet (12).

[0010] In one specific embodiment in this case, by changing the direction in which the attachment plug (8) is inserted into the connection outlet (12), it is possible to switch between an ON state in which the L-side and N-side power lines are connected and an OFF state in which they are disconnected (the LN connection can be switched ON / OFF), and the device is provided with an LN connection detection unit (203) that detects ON / OFF of the LN connection and a battery power control unit (207) that controls whether or not power is supplied from the battery (208) to the LED element (18), and when a power outage of the commercial power supply is detected, the LN connection detection unit (203) may detect whether the LN connection is in an ON state or an OFF state and output an LN connection ON / OFF signal to the battery power control unit (207).

[0011] Furthermore, in this case, it is desirable that the battery power supply control unit (207) supplies power from the battery (208) to the LED element (18) when it receives an LN connection ON signal from the LN connection detection unit (203), and does not supply power from the battery (208) to the LED element (18) when it receives an LN connection OFF signal from the LN connection detection unit (203).

[0012] According to the lighting device of the present invention, by inserting the attachment plug into a commercial power outlet, the LED elements can be illuminated using commercial power, and by inserting the attachment plug into a connecting outlet, the LED elements can be illuminated using a battery. This allows the LED elements to be illuminated using commercial power under normal circumstances, and to be illuminated using the battery during a commercial power outage or in an environment where commercial power is unavailable. For example, in the event of a power outage at night or in a location where commercial power is unavailable and it is necessary to use the device as an emergency light, the LED elements can be illuminated by unplugging the attachment plug from the commercial power outlet and inserting it into the connecting outlet, and then moved to another location in that state. This results in an LED lamp that can be illuminated and used regardless of the location or environment.

[0013] Furthermore, in the lighting device according to the present invention, the battery-powered LED element is configured to be turned on or off depending on the orientation of the plug inserted into the interconnecting outlet, making it possible to switch the LED element on or off with the extremely simple operation of simply selecting the orientation of the plug inserted into the interconnecting outlet. Therefore, when used as an emergency light in the event of a power outage at night or in a location where commercial power is unavailable, the LED element can be quickly and accurately turned on or off, making this a highly convenient lighting device.

[0014] In addition, in the lighting device according to the present invention, when the attachment plug (8) is inserted into the connecting outlet (12), the first electric cord (6) and the second electric cord (10) connected in a loop shape may form a shoulder belt for carrying the lamp body (14) and the cover member (16) on the back.

[0015] With the lighting device according to the present invention, the first and second electric cords connected in a loop can function as a shoulder belt, allowing the user to carry the lamp body and cover member on their back with the LED element lit. This allows the user to easily move around without having to hold the lighting device directly, even during a power outage such as a disaster, and allows them to move around with their hands free, reducing restrictions on movement while moving and improving safety and convenience.

[0016] In addition, in the above lighting device, it is desirable that the first electric cord (6) and the second electric cord (10) are covered with a covering material (6a, 10a) having resistance to a predetermined tensile load. This provides the first electric cord and the second electric cord with the necessary and sufficient strength and resistance as a shoulder belt, ensuring safety and functionality when carrying the lighting device by hanging the shoulder belt on the shoulder.

[0017] The lighting device may further include a connector for connecting the attachment plug 8 to the connecting outlet 12 while they are inserted, and the connector may be configured to be able to lock and unlock the connection between the attachment plug 8 and the connecting outlet 10. In this way, locking the attachment plug and the connecting outlet in their connected state prevents the shoulder belt from accidentally coming off, and unlocking the lock makes it easy to remove the shoulder belt from the shoulder and put the lighting device down.

[0018] In addition, in the above lighting device, when the first electric cord (6) and the second electric cord (10) are used as the shoulder belt, at least the portions of the first electric cord (6) and the second electric cord (10) that touch the shoulder may be covered with a flexible belt-shaped member (48). This reduces the burden on the body when carrying the lighting device on the back using the shoulder belt.

[0019] Furthermore, the lighting device may be configured so that the battery (208) can be charged and discharged from a commercial power source. This allows charging while the LED elements are illuminated by the commercial power source, ensuring sufficient battery capacity in the event of a power outage.

[0020] The lighting device may further include a switch (209) for turning on and off the supply of power from the battery (208) to the LED elements (18), and the switch (209) may be provided exposed on the outer surface of the cover member (16). This allows the power supply to the LED elements to be easily turned on and off, and by appropriately turning it off, unnecessary power consumption during lighting using the battery as a power source can be reduced.

[0021] Furthermore, in the above lighting device, when the first electric cord (6) and the second electric cord (10) are used as the shoulder belt, at least the portions of the first electric cord (6) and the second electric cord (10) that come into contact with the shoulder may be covered with a flexible belt-shaped member (48). This reduces the burden on the body when carrying the lighting device on the back using the shoulder belt. [Effects of the Invention]

[0022] According to the present invention, the lamp body can be protected while still being able to be lit using only a commercial power outlet at outdoor construction sites, etc., and in the event of a power outage or when it is necessary to move to another location to illuminate, the lamp can be carried on the back while remaining lit, allowing the user to move with both hands free. [Brief explanation of the drawings]

[0023] [Figure 1] 1 is a diagram showing the overall configuration of an LED light (illumination device) according to one embodiment of the present invention. [Figure 2] FIG. 2 is a diagram showing the LED light shown in FIG. 1 unplugged from the commercial power outlet and turned on by a battery. [Figure 3] FIG. 2 is a diagram showing an example of connecting multiple LED lights shown in FIG. 1. [Figure 4] FIG. 2 is a schematic cross-sectional view of the lamp unit of the LED light shown in FIG. 1. [Figure 5] This is a schematic circuit diagram of the LED light shown in Figure 1. [Figure 6] FIG. 2 is a schematic circuit diagram showing the operation of the LED light shown in FIG. 1 when the attachment plug is inserted into an AC power outlet. [Figure 7] 3A and 3B are diagrams illustrating the operation of the LED light shown in FIG. 1 when the attachment plug and the connecting outlet are properly connected. [Figure 8] 1. FIG. 4 is a diagram illustrating the operation of the LED light shown in FIG. 1 when the attachment plug and the connecting outlet are connected in reverse. [Figure 9]The following diagrams show how the LED light shown in Figure 1 is carried on the back. (a) shows the case where the electric cord is used as a shoulder strap, and (b) shows the case where cushioning material is attached to reduce strain on the body. DETAILED DESCRIPTION OF THE INVENTION

[0024] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0025] 1 shows an LED light (lighting device) 2 according to one embodiment of the present invention. The LED light 2 generally comprises a lamp unit 4 having a round rod-shaped outer shape, a first electric cord 6 extending outward from one end of the lamp unit 4, an attachment plug 8 provided at the end of the first electric cord 6, a second electric cord 10 extending outward from the other end of the lamp unit 4 and being shorter than the first electric cord 6, and a connecting outlet 12 provided at the end of the second electric cord 10 and into which the attachment plug 8 can be inserted.

[0026] As shown in Figure 2, when the attachment plug 8 is inserted into the connecting outlet 12 to form a closed loop configuration, the lamp unit 4 can be lit (self-illuminated) using the battery 208 (see Figure 5, etc.) built into the lamp unit 4 as a power source, as will be described later, and the lamp can be carried over the shoulder in a sash-like manner.

[0027] The first electric cord 6 and the second electric cord 10 are used as a shoulder belt when connected in a loop, and are therefore covered with covering materials 6a, 10a that are electrically insulating and can withstand a predetermined tensile load to ensure their functionality as a shoulder belt. The covering material here preferably includes, for example, a cloth or fiber material that is strong and durable enough to withstand a tensile load equal to or greater than that applied when suspending an object of the same weight as the lamp unit 4 or heavier.

[0028] Furthermore, instead of covering the first electrical cord 6 and the second electrical cord 10 with the covering materials 6a and 10a, a belt made of a strip-shaped fabric material may be disposed along the first electrical cord 6 and the second electrical cord 10, and the first electrical cord 6 and the second electrical cord 10 may be integrally joined to the belt by means of sewing, gluing, or the like. In this case, the belt may be the same as a shoulder belt used in a typical relatively large suitcase or bag.

[0029] Although not shown, a connector is also provided that can connect the attachment plug 8 to the connecting outlet 12 while they are inserted into the connecting outlet 12. This connector is configured to be able to lock and unlock the connection between the attachment plug 8 and the connecting outlet 12, and can be configured, for example, to have an engaging piece made of a hook and an engaged part that engages with the hook, or a connector with a configuration similar to a fastener (side release buckle) typically used to fasten the strap of a bag or backpack. When the attachment plug 8 and the connecting outlet 12 are connected and locked by the connector, the attachment plug 8 remains inserted into the connecting outlet 12 even if the first electric cord 6 and the second electric cord 10 are pulled.

[0030] The LED light 2 configured as described above can be turned on using commercial power by connecting the attachment plug 8 to a commercial power outlet (commercial AC power outlet) 26. In this state, it is also possible to connect multiple LED lights 2 (here, four, 2A to 2D) and turn on all of the LED lights 2 (2A to 2D) by inserting the attachment plug 8 of the first LED light 2A into the commercial power outlet.

[0031] 2, by inserting the attachment plug 8 into the connection outlet 12 of one LED light 2 and connecting the first electric cord 6 and the second electric cord 10 in a loop, the LED light 2 can be turned on by itself using the built-in battery 208. In this case, by connecting multiple LED lights 2 (2A to 2D) in a linear, triangular, or rectangular shape, it is possible to illuminate a wide area such as at a construction site or to illuminate displays at various events.

[0032] The configuration of the lamp unit 4 will be described in detail with reference to FIG. 4. Note that FIG. 4 omits the illustration of a connection cable C (see FIG. 5, etc.) described later. The lamp unit 4 includes a straight-tube lamp body 14, a cover member 16 made of a translucent material that encloses (contains) the lamp body 14 in a substantially sealed state, an LED board 20 provided inside the lamp body 14 and having a plurality of LED elements 18 arranged in the longitudinal direction of the lamp body 14, a drive control unit 200 (see FIG. 5) provided inside the lamp body 14 that drives the LED elements 18, and a battery 208 (see FIG. 5) formed of, for example, a lithium-ion battery provided inside the lamp body 14. The LED light 2 can light the LED elements 18 using a commercial power source by inserting the attachment plug 8 into a commercial power outlet 26 (see FIG. 6), and can light the LED elements 18 using the battery 208 by inserting the attachment plug 8 into a connecting outlet 12.

[0033] The cover member 16 protecting the lamp body 14 comprises a cylindrical (tubular) cover body 28 made of a translucent (including transparent and translucent) plastic material such as polycarbonate or acrylic, which has excellent impact resistance and weather resistance; sockets 30, 30 fitted into and fixed to both ends of the cover body 28 and electrically connected to the power input terminals 14a, 14a to hold the lamp body 14 in approximately the center of the cylinder; and cap members 32, 32 sealing both ends of the cover body 28 in a substantially airtight (waterproof) state. A first electric cord 6 passes from the socket 30 through the cap member 32 and is drawn out from one end of the cover member 16 to the outside, with an attachment plug 8 attached to its tip. A second electric cord 10 passes from the socket 30 through the cap member 32 and is drawn out from the other end of the cover member 16 to the outside, with a connecting outlet 12 attached to its tip.

[0034] In addition, a connection cable C consisting of an L-side and an N-side AC power line is provided between the sockets 30, 30 as shown in Figure 5, and the AC power line between the attachment plug 8 and the connecting outlet 12 is connected through the connection cable C.

[0035] The cap members 32, 32 are fastened and fixed with a ring member (not shown) equipped with a fastening screw, and the lamp body 14 can be replaced by loosening and removing the screw and then pulling out the socket 30. Note that a hook member (not shown) is attached to the periphery (outer periphery) of the cap members 32, 32 or the cover body 28, and by hooking the hook member onto a linear object such as a rope or onto a wall at a construction site or the like, the LED light 2 can be installed in any position.

[0036] The lamp body 14 includes a semi-cylindrical heat sink 34 made of a highly thermally conductive material such as aluminum, an LED board 20 arranged on the flat surface of the heat sink 34, and a semi-circular light diffusion cover 36 that is engaged and fixed to the heat sink 34. A plurality of LED elements 18 are arranged (mounted) in one or more rows on the LED board 20. The light diffusion cover 36 is made of transparent or translucent plastic or glass. The heat sink 34 houses a lamp drive control unit (control board) 200, a battery 208, etc.

[0037] With the above configuration, even if a falling or flying object hits the lamp unit 4 at a construction site or the like, the lamp body 14 is protected by the cover member 16. Furthermore, even if the lamp unit 4 gets wet in rain or is splashed with drainage water, the waterproof function of the cover member 16 protects the lamp body 14.

[0038] An outline of the circuit configuration of the LED light 2 will be described with reference to Figure 5. A drive control unit 200, which drives and lights the LED elements 18 on the LED board 20, is connected to the L-side and N-side power supply lines of the connection cable C through an EMC (Electromagnetic Compatibility) circuit 201. An AC power interruption detection unit 202 monitors the L-side and N-side power supply lines to detect an ON state in which AC power is being supplied and an OFF state in which AC power is not being supplied. The AC power interruption (OFF) state indicates a state in which the attachment plug 8 has been unplugged from a commercial AC power outlet or a power outage. The detected AC power ON / OFF signal is output to a power supply switching unit 206 and a battery power control unit 207.

[0039] When an AC power interruption is detected, the LN connection detection unit 203 detects whether the L-side and N-side power lines are connected (ON state) or not connected (OFF state), and outputs an LN connection ON / OFF signal to the battery power control unit 207. As will be described later, whether the LN connection is ON or LN non-connection is OFF can be set depending on the direction in which the attachment plug 8 is inserted into the connection outlet 12.

[0040] When AC power is supplied, AC / DC conversion unit 204 generates DC power for charging and driving at a predetermined voltage from the AC power supply. The driving DC power is supplied to driver 205, and the driver 205 outputs a predetermined LED driving voltage to power supply switching unit 206.

[0041] The power supply switching unit 206 switches the source of power supplied to the LED lamp body 14 between the AC power supply side and the battery side depending on the AC power ON / OFF signal from the AC power interruption detection unit 202. That is, when an AC power ON signal is input, power is supplied to the LED lamp body 14 from the AC power supply side, and when an AC power OFF signal is input, power is supplied to the LED lamp body 14 from the battery side.

[0042] Furthermore, the charging DC power from the AC / DC conversion unit 204 is supplied to a battery power control unit 207 and used to charge the battery 208. The battery power control unit 207 controls the charging and discharging of the battery 208 depending on the LN connection ON / OFF signal from the LN connection detection unit 203. That is, if AC power is being supplied, the battery 208 is charged by the charging power from the AC / DC conversion unit 204. If the AC power is OFF and the LN connection is ON, the battery power control unit 207 outputs the power of the battery 208 to a DC-DC conversion unit 210, and the drive voltage converted to a predetermined voltage is output to the power supply switching unit 206.

[0043] 6, when the attachment plug 8 is inserted into the commercial power outlet 26 and AC power is being supplied, the AC power interruption detection unit 202 outputs an AC power ON signal to the power supply switching unit 206, and the power supply switching unit 206 selects the AC power supply as the power source. Therefore, the driving DC power of a predetermined voltage supplied by the AC / DC conversion unit 204 and the driver 205 is supplied to the LED lamp body 14 through the power supply switching unit 206, and the LED light 2 can be turned on.

[0044] 7 and 8, when the commercial power supply fails, or when the attachment plug 8 is pulled out from the commercial power outlet 26 as needed, the AC power interruption detection unit 202 outputs an AC power OFF signal to the power supply switching unit 206, and the power supply switching unit 206 selects the battery side as the power supply source. In this AC power interruption state, the battery power supply control unit 207 controls the power supply from the battery 208 to the LED lamp body 14 depending on the ON / OFF of the LN connection, i.e., whether the L side and N side of the power line are short-circuited or disconnected.

[0045] 7, when the attachment plug 8 is inserted into the interconnection outlet 12 with the L side and N side aligned, the L side connecting wire and the N side connecting wire each form a loop and are electrically isolated from each other. For this reason, the LN connection detection unit 203 outputs an LN connection OFF signal to the battery power supply control unit 207. If the AC power supply is OFF and the LN connection is OFF, the battery power supply control unit 207 does not supply power from the battery 208 to the LED lamp body 14, and therefore does not light up the LED light 2.

[0046] However, if a DC switch 209 is provided and the DC switch 209 is in the ON state, even if the AC power supply is OFF and the LN connection is OFF, the battery power supply control unit 207 can supply power from the battery 208 to the LED lamp body 14 to light up the LED light 2.

[0047] 8, when the attachment plug 8 is inserted into the interconnection outlet 12 with the L side and N side reversed, the L side connecting line and the N side connecting line are short-circuited, i.e., electrically connected. For this reason, the LN connection detection unit 203 outputs an LN connection ON signal to the battery power supply control unit 207. When the AC power supply is OFF and the LN connection is ON, the battery power supply control unit 207 supplies power from the battery 208 to the LED lamp body 14, thereby lighting up the LED light 2.

[0048] As described above, depending on the direction in which the attachment plug 8 is inserted into the connecting outlet 12, it is possible to switch between LN connection (ON) and LN non-connection (OFF), and it is possible to control whether the LED light 2 is turned on or off.

[0049] Although the pipe light type lamp unit 4 is heavier than a normal straight tube type LED lamp that is attached to a lighting fixture, with the LED light 2 of this embodiment, the first electric cord 6 and the second electric cord 10, which are connected in a loop with the plug 8 inserted into the connecting outlet 12, function as a shoulder belt, so that the weight of the lamp unit 4 can be easily carried on the shoulder without being felt, and the user can walk around with both hands free while illuminating the surroundings. Having both hands free makes it easier to act, especially in the event of a disaster.

[0050] Furthermore, with the LED light 2 of this embodiment, even if there is no commercial power outage, if it becomes necessary to use it as an emergency light in another location at night, the attachment plug 8 can be unplugged from the commercial power outlet 26 and plugged into the connecting outlet 12 to turn it on, and then the LED light 2 can be moved to another location in that state. When lighting (illumination) is not required, the DC switch 209 can be turned off as appropriate to reduce power consumption of the battery 208, thereby extending the lighting time.

[0051] If the first electric cord 6 digs into the body, as shown in FIG. 9(b), at least the portion of the first electric cord 6 that touches the body, such as the shoulder, can be covered with a flexible belt-shaped member 48. This can alleviate pain caused by the cord digging into the body, such as the shoulder, and reduce the strain on the body during long-distance or extended travel. The connecting outlet 12 may be provided so as not to protrude from the other end of the cover member 16. However, extending it to the outside with a short second electric cord 10, as in this embodiment, facilitates the insertion of the attachment plug 8 into the connecting outlet 12. As shown in FIG. 9(a), the combined length L1 of the first electric cord 6 and the length L2 of the second electric cord 10 are set to an appropriate length for comfortable travel when worn over the shoulder (carried on the back). By shortening the second electric cord 10, the connecting portion 50 between the attachment plug 8 and the connecting outlet 12 can be positioned away from the area of ​​the body that is carried on the back, preventing the uncomfortable feeling (roughness) of the connecting portion 50 touching the body. The same applies to movement when the LED element 18 is not lit.

[0052] Although the embodiments of the present invention have been described above, the present invention is not limited to the above embodiments, and various modifications are possible within the scope of the claims and the technical ideas described in the specification and drawings. [Explanation of symbols]

[0053] 2, 2A, 2B, 2C, 2D LED lights (lighting devices) 4 Lamp unit 6. First Electrical Cord 8. Plug 10 Second Electrical Cord 12. Connection outlet 14 Lamp body 16 Cover member 18 LED elements 20 LED boards 200 Drive control unit (drive means) 202 AC power interruption detection unit 203 LN connection detector 206 Power supply switching unit 207 Battery power control unit 208 Battery 26 Commercial power outlet 42 External Switch 48 Belt-shaped member 50 Connecting part

Claims

1. A straight tube lamp body, a cylindrical cover member made of a light-transmitting material that covers the lamp body in a substantially sealed state; an attachment plug provided at a tip of a first electric cord electrically connected to one end of the lamp body and extending from one end of the cover member; a connecting outlet, into which the attachment plug can be inserted, provided at a tip of a second electric cord electrically connected to the other end of the lamp body and extending from the other end of the cover member; an LED substrate provided inside the lamp body and having a plurality of LED elements arranged in the longitudinal direction of the lamp body; a driving means provided inside the lamp body for driving the LED element; a battery provided inside the lamp body, By inserting the attachment plug into a commercial power outlet, the LED element can be illuminated using the commercial power supply as a power source, By inserting the attachment plug into the connection outlet, the LED element can be illuminated using the battery as a power source. A lighting device characterized by:

2. The LED element, which is powered by the battery, is configured to be turned on and off depending on the direction in which the attachment plug is inserted into the connection outlet.

2. The lighting device according to claim 1.

3. By switching the orientation of the attachment plug into the connection outlet, it is possible to switch between an ON state in which the L-side and N-side power lines are connected and an OFF state in which they are disconnected, an LN connection detection unit that detects ON / OFF of the LN connection; a battery power supply control unit that controls whether or not power is supplied from the battery to the LED element, When a power interruption of the commercial power supply is detected, the L-N connection detection unit detects whether the L-N connection is in an ON state or an OFF state, and outputs an L-N connection ON / OFF signal to the battery power supply control unit.

2. The lighting device according to claim 1.

4. The battery power supply control unit When an LN connection ON signal is input from the LN connection detection unit, power is supplied from the battery to the LED element, When an LN connection OFF signal is input from the LN connection detection unit, power is not supplied from the battery to the LED element.

4. The lighting device according to claim 3.

5. With the attachment plug inserted into the connecting outlet, the first and second electric cords connected in a loop form a shoulder belt for carrying the lamp body and the cover member on one's back.

2. The lighting device according to claim 1.

6. The first electric cord and the second electric cord are covered with a covering material having resistance to a predetermined tensile load.

6. The lighting device according to claim 5.

7. a connector for connecting the attachment plug and the connection outlet in a state where the attachment plug and the connection outlet are inserted; The connector is configured to be capable of locking and unlocking the connection between the attachment plug and the connection outlet.

7. The lighting device according to claim 5, wherein the light source is a light source.

8. When the first and second electric cords are used as the shoulder belt, at least the portions of the first and second electric cords that come into contact with the shoulder are covered with a flexible belt-like member.

8. The lighting device according to claim 7.

9. 2. The lighting device according to claim 1, wherein the battery is capable of being charged and discharged by the commercial power source.

10. a switch for turning on and off the supply of power from the battery to the LED element; The switch is provided exposed on the outer surface of the cover member.

2. The lighting device according to claim 1.

Images