lighting equipment

Abstract

To provide an illumination device which can be downsized by effectively using a limited space within a luminaire.SOLUTION: An illumination device includes a luminaire body 20, an annular light source 40 provided in the luminaire body 20, and an emergency unit 15 provided in the luminaire body 20 and penetrating through the inside of the annular light source 40.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] FIELD OF THE INVENTION An embodiment of the present invention relates to a lighting device. [Background technology]

[0002] Conventionally, in a circular lighting device, a circular light source is placed in the center of the fixture body, with a power source, emergency unit, battery, etc. placed around it, and these are covered by a globe attached to the fixture body.

[0003] In such lighting devices, there is a demand for miniaturization, given the limited space available within the fixture. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 2019-102369 Summary of the Invention [Problem to be solved by the invention]

[0005] The problem to be solved by the present invention is to provide a lighting device that can be made compact by effectively utilizing the limited space within the fixture. [Means for solving the problem]

[0006] The lighting device of the embodiment includes: a fixture body; The device has a circular substrate and a plurality of normal light source elements and a plurality of emergency light source elements mounted on the substrate. The device includes an annular light source disposed in the fixture body, and an emergency unit disposed in the fixture body and passing through the inside of the annular light source. [Effects of the Invention]

[0007] According to the lighting device of the embodiment, the limited space inside the fixture can be effectively utilized, and miniaturization can be expected. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a perspective view of a lighting device showing a first embodiment. [Figure 2] FIG. [Figure 3] FIG. 2 is a bottom view of the lighting device with the globe and light source cover removed. [Figure 4] FIG. 2 is a perspective view of the lighting device with a globe and a light source cover removed. [Figure 5] FIG. 2 is a bottom view of the fixture body of the lighting device. [Figure 6] FIG. 2 is an enlarged perspective view of a portion of the fixture body of the lighting device. [Figure 7] FIG. 10 is a bottom view of the lighting device showing the second embodiment with the globe and light source cover removed. DETAILED DESCRIPTION OF THE INVENTION

[0009] The first embodiment will be described below with reference to FIGS.

[0010] 1 and 2 show a lighting device 10. The lighting device 10 is a round bracket type emergency lighting fixture. The lighting device 10 is installed on a ceiling or wall, which is an installation surface.

[0011] The lighting device 10 includes a housing 11, and a light source unit 12, a terminal block 13, a power supply unit 14, an emergency unit 15, a battery 16, and the like, which are arranged in the housing 11.

[0012] The housing 11 includes a device main body 20 to be placed on an installation surface, and a globe 21 detachably attached to the device main body 20.

[0013] 2 to 6, the fixture body 20 has a circular mounting surface 22 and a peripheral surface 23 that rises from the periphery of the mounting surface 22, and is formed in a cylindrical shape that is open on the side opposite the mounting surface 22. The mounting surface 22 has a wiring hole 24 in its center through which a power line is passed, and a pair of installation holes 25 and a pair of installation holes 26 are provided radially from the wiring hole 24. The pair of installation holes 25 located on the inner diameter side are for screwing to the mounting surface, and the pair of installation holes 26 located on the outer diameter side are for attaching suspension bolts.

[0014] A pair of cylindrical mounting portions 27 protrude from the inner surface of the mounting surface portion 22, and mount the light source unit 12 at diagonal positions on either side of the central wiring hole 24. Support portions 28 and 29 protrude from the inner surface of the mounting surface portion 22, and support portions 28 and 29 support the rear side of the light source unit 12 in a direction intersecting the direction connecting the pair of mounting portions 27.

[0015] A wall portion (protrusion) 30 protrudes from the inner surface of the mounting surface portion 22, midway between the central wiring hole 24 and the peripheral surface portion 23, in one direction intersecting the direction in which the installation holes 25, 26 are aligned. The wall portion 30 is provided as a wide wall along the direction in which the installation holes 25, 26 are aligned. One support portion 28 is provided at one end of the wall portion 30 in the width direction. The wall portion 30 protrudes lower from the inner surface of the mounting surface portion 22 than the one support portion 28. The emergency unit 15 is disposed on the inner diameter side of the wall portion 30, and the battery 16 is disposed on the outer diameter side. The wall portion 30 has the function of supporting the emergency unit 15 and the function of positioning the battery 16. A battery positioning portion 31 protrudes from the outer diameter side of the wall portion 30, positioning the four periphery sides of the battery 16. The wall portion 30 also serves as the battery positioning protrusion 31, which positions one side of the battery 16.

[0016] The inner peripheral surface of the peripheral surface portion 23 is formed with a screw portion 32, which is a helical female screw, for rotating the globe 21 in the circumferential direction to attach and detach the globe 21.

[0017] The globe 21 is made of, for example, a milky white globe that has optical transparency and light diffusion properties. The globe 21 has a circular front surface 33 and a peripheral surface 34 that rises from the periphery of the front surface 33, and is formed in a cylindrical shape that is open on the side opposite the front surface 33. The peripheral surface 34 of the globe 21 is formed with an insertion portion 35 that is inserted into the inside of the device body 20, and a threaded portion 36 that is a helical male screw that screws into the threaded portion 32 of the device body 20 is formed around the insertion portion 35.

[0018] A disk-shaped packing 37 is disposed on the rear side of the fixture body 20, and an annular packing 38 is interposed between the fixture body 20 and the globe 21, thereby forming the lighting device 10 with a waterproof structure.

[0019] As shown in Figures 2 to 4, the light source unit 12 includes an annular light source 40, a substantially annular heat sink 41 to which the annular light source 40 is attached, a light source cover 42 that covers the annular light source 40 between the heat sink 41, and a light source connector 43 attached to the heat sink 41.

[0020] The annular light source 40 includes an annular substrate 44, and a plurality of normal light source elements 45 and a plurality of emergency light source elements 46 mounted on the substrate 44.

[0021] The substrate 44 has a substantially rectangular outer shape and has a substantially circular light source opening (substrate opening) 47 formed on the inside. A first wiring pattern on which a plurality of normal light source elements 45 are mounted and connected in series or series-parallel, and a second wiring pattern on which a plurality of emergency light source elements 46 are mounted and connected in series or series-parallel, are formed on the front side of the substrate 44. A substrate connector 48 electrically connected to the first wiring pattern and the second wiring pattern is mounted on the substrate 44. The rear side of the substrate 44 is disposed on the front side of the heat sink 41, and the substrate 44 is attached to the heat sink 41 with a plurality of screws 49.

[0022] The plurality of regular light source elements 45 are configured by, for example, light emitting diodes, are mounted on the first wiring pattern of the substrate 44, and are arranged in a ring shape on the outer periphery of the substrate 44.

[0023] The plurality of emergency light source elements 46 are configured by, for example, light emitting diodes, are connected to the second wiring pattern of the substrate 44, and are arranged in a ring shape on the inner circumferential side of the substrate 44 than the normal light source elements 45.

[0024] The normal light source elements 45 and the emergency light source elements 46 may be the same elements or different elements, and the number of emergency light source elements 46 used is less than the number of normal light source elements 45.

[0025] The heat sink 41 is formed of a metal plate having a diameter smaller than the inner diameter of the peripheral surface portion 23 of the fixture body 20. The heat sink 41 has a circular outer shape, and has a heat sink opening 50 smaller than the light source opening 47 formed inside.

[0026] A pair of arm-shaped mounting holes 51 are provided at the edge of the heat sink opening 50 of the heat sink 41, facing the tip surfaces of a pair of mounting portions 27 protruding from the fixture body 20. The light source unit 12 is mounted to the fixture body 20 by threading each screw 52 into each mounting portion 27 through each mounting hole 51. The back side of the edge of the heat sink opening 50 of the heat sink 41 abuts against the tip surfaces of the support portions 28, 29 protruding from the fixture body 20. Therefore, the light source unit 12 is mounted by the pair of mounting portions 27 and the support portions 28, 29 in a state where it is positioned on the opening side of the fixture body 20, spaced apart from the inner surface of the mounting surface portion 22.

[0027] A connector mounting portion 41a for mounting the light source connector 43 is formed by bending the connector mounting portion 41a substantially vertically toward the front side at the edge of the heat sink opening 50 of the heat sink 41. The connector mounting portion 41a is bent so as to face the circumferential direction of the heat sink 41.

[0028] A light source cover mounting structure for mounting the light source cover 42 is provided around the mounting position of the substrate 44 on the heat sink 41. In this light source cover mounting structure, a pair of hook holes 53 are provided on one side around the mounting position of the substrate 44, a screw hole 54 is provided on the other side opposite the one side, and insertion holes 55 are provided on both sides intersecting the one side and the other side.

[0029] The light source cover 42 is, for example, a transparent cover that has optical transparency, and is formed in a ring shape corresponding to the shape of the substrate 44. A pair of claws 56 protrude from one side of the light source cover 42 to be inserted into and hooked onto the hook holes 53 of the heat sink 41, and an attachment piece 58 protrudes from the other side opposite the one side to be attached to the screw fastening hole 54 with a screw 57, and insertion parts 59 protrude from both sides intersecting the one and other sides to be inserted into the insertion holes 55.

[0030] The light source connector 43 is attached to the connector attachment portion 41a of the heat sink 41, and is disposed inside the annular light source 40 in a front view, and is disposed closer to the front surface portion 33 of the globe 21 in the light emission direction than the annular light source 40. The connector connection surface side of one end of the light source connector 43 is disposed facing the circumferential direction of the light source unit 12. A wiring 60 is drawn out from the other end of the light source connector 43, and a connection connector 61 is connected to the tip side of this wiring 60. The connection connector 61 is connected to a board connector 48 mounted on a board 44.

[0031] 2 and 5, the terminal block 13 is attached to the mounting surface 22 of the fixture body 20 on the side of the wall 30 of the fixture body 20, the emergency unit 15, and the battery 16. A power line drawn in from a wiring hole 24 of the fixture body 20 is electrically connected to the terminal block 13. The power line supplies external power such as commercial AC power.

[0032] The power supply unit 14 is attached to the mounting surface 22 of the fixture body 20 at a position facing the emergency unit 15 via the wiring hole 24. One end of the input wiring, one end of which is connected to the terminal block 13, is connected to the input side of the power supply unit 14, and external power is input through the terminal block 13. One end of the normal output wiring is connected to the output side of the power supply unit 14, and the other end of this normal output wiring is connected to the fixture-side connector 65. The fixture-side connector 65 is detachably connected to the light source connector 43. The power supply unit 14 then converts the input external power into predetermined lighting power such as DC power and supplies it to the normal light source elements 45 of the annular light source 40, lighting the normal light source elements 45.

[0033] The emergency unit 15 is attached to the mounting surface 22 of the fixture body 20 at a position between the wiring hole 24 and the wall 30. The emergency unit 15 is formed in a long rectangular parallelepiped shape, and one end in the longitudinal direction is attached to the mounting surface 22 of the fixture body 20. The other end in the longitudinal direction of the emergency unit 15 penetrates the inside of the annular light source 40 and is arranged closer to the front surface 33 of the globe 21 in the light emission direction than the annular light source 40.

[0034] The emergency unit 15 comprises a case 70 and a circuit section housed within this case 70. The circuit section includes a charging circuit that charges the battery 16 when external power is input and discharges the power of the battery 16 in the event of a power outage, an emergency power supply circuit that converts the power from the battery 16 into predetermined emergency lighting power in the event of a power outage in the external power, and an inspection circuit that executes an inspection mode in which the battery 16 and the light source unit 12 are inspected in response to an inspection signal from the remote control or operation of an inspection switch 74.

[0035] The emergency unit 15 includes an input terminal section 71 (shown in FIG. 6 ) to which one end of the input wiring, the other end of which is connected to the terminal block 13, is connected, a connector 72 to which the battery 16 is connected, and an output terminal section 73 to which the annular light source 40 is connected. One end of the emergency output wiring is connected to the output terminal section 73, and the other end of this emergency output wiring is connected to the fixture-side connector 65. The normal output wiring is connected together with the emergency output wiring to the fixture-side connector 65, and is connected to the light source connector 43 by this fixture-side connector 65. Then, in the event of a power outage, the emergency unit 15 supplies lighting power obtained by converting power from the battery 16 to the emergency light source element 46 of the annular light source 40, thereby lighting the emergency light source element 46.

[0036] The emergency unit 15 is provided, on its tip surface facing the front surface 33 of the globe 21, with an inspection switch 74 that can be manually operated to issue an inspection command, a remote control light receiving unit 75 that receives signals such as an inspection signal from a remote control, and a monitor lamp 76 that displays the status and inspection results of the battery 16 and light source unit 12. The inspection switch 74, remote control light receiving unit 75, and monitor lamp 76 are located closer to the front surface 33 of the globe 21 in the light emission direction than the annular light source 40.

[0037] A battery cord holder 77 that holds the battery cord from the battery 16 in an inserted state is provided on the side of the emergency unit 15, and a battery connector holder 78 that temporarily holds the battery connector at the tip of the battery cord is also provided. The battery cord holder 77 has a substantially L-shaped first holder 77a through which the battery cord is inserted between the side of the emergency unit 15 and the battery cord holder 77, and a second holder 77b that faces the first holder 77a and holds the battery cord within the first holder 77a. The middle portion of the battery cord can be inserted through a notch between the first holder 77a and the second holder 77b and held by the battery cord holder 77. The battery connector holder 78 is located closer to the mounting surface 22 of the appliance body 20 than the battery cord holder 77, and holds the battery connector inserted therein. The battery connector holder 78 and the connector 72 are disposed at positions facing the light source opening 47 inside the annular light source 40 and the heat sink opening 50 inside the heat sink 41 .

[0038] A battery package consisting of multiple rechargeable secondary batteries connected together is used as the battery 16. The battery 16 is positioned and arranged between the surrounding battery positioning portions 31 on the side of the wall portion 30, and is detachably attached by battery attachment members 82 attached to the battery positioning portions 31 with decorative screws 81.

[0039] A battery cord connected to the battery body is pulled out from the battery 16, and a battery connector is connected to the tip of this battery cord. The battery cord is inserted through a battery cord holder 77 of the emergency unit 15 and connected to a connector 72 of the emergency unit 15. When the lighting device 10 is shipped from the factory, the battery connector is not connected to the connector 72, but is inserted into a connector holder 78 and temporarily held therein, in order to prevent discharge of the battery 16. When the lighting device 10 is installed, the battery connector is connected to the connector 72.

[0040] To install the lighting device 10, the globe 21 and light source unit 12 are removed from the fixture body 20. The power supply wire drawn from the installation surface is pulled into the fixture body 20 through the wiring hole 24 and screwed to the ceiling or wall using the installation hole 25, or when mounting to a ceiling, the power supply wire is passed through the installation hole 26 onto a hanging bolt protruding from the ceiling and attached to the ceiling by tightening a nut that screws onto the hanging bolt. The power supply wire drawn into the fixture body 20 is connected to the terminal block 13.

[0041] The battery connector of the battery cord of battery 16 is removed from battery connector holder 78 of emergency unit 15 and connected to connector 72 of emergency unit 15. At this time, because the battery cord is held in battery cord holder 77 of emergency unit 15, even if the battery cord or battery connector is released from the hand during the connection work, the battery connector can be re-grabbed without being significantly displaced, or the battery cord can be connected to connector 72 of emergency unit 15 without getting caught on other parts inside appliance body 20.

[0042] The light source unit 12 is inserted into the fixture body 20 and attached to the fixture body 20 with the screws 52. Note that when the light source unit 12 is attached to the fixture body 20, the battery connector holding portion 78 and the connecting connector 72 of the emergency unit 15 are positioned opposite the light source opening 47 on the inner side of the annular light source 40 and the heat sink opening 50 on the inner side of the heat sink 41, so that even after the light source unit 12 is attached to the fixture body 20, the battery connector of the battery 16 can be connected to the connecting connector 72 of the emergency unit 15 as described above.

[0043] The fixture-side connector 65 is pulled out to the front side of the light source unit 12 from the light source opening 47 inside the annular light source 40 and the heat sink opening 50 inside the heat sink 41, and connected to the light source connector 43. Since the light source connector 43 is attached to the connector attachment portion 41a of the heat sink 41 and is fixed in position, the fixture-side connector 65 can be easily connected.

[0044] The globe 21 is attached to the fixture body 20, and the installation is completed.

[0045] When external power is supplied to the lighting device 10, the lighting power converted by the power supply unit 14 is supplied to the regular light source elements 45 of the annular light source 40, and the regular light source elements 45 are turned on. Light from the regular light source elements 45 is emitted through the globe 21. Because the regular light source elements 45 are arranged in an annular shape and on the outer periphery of the annular light source 40, the entire globe 21 lights up evenly, and light is emitted over a wide range.

[0046] The emergency unit 15 charges the battery 16 with external power.

[0047] Furthermore, when the supply of external power is stopped due to a power outage or the like, the normal light source element 45 of the lighting device 10 is turned off and the emergency light source element 46 is turned on.

[0048] When external power is cut off, the emergency unit 15 is operated by power discharged from the battery 16, and the power from the battery 16 is converted into emergency lighting power and supplied to the emergency light source elements 46 of the annular light source 40, lighting the emergency light source elements 46. Because the emergency light source elements 46 are arranged in a ring shape, the entire globe 21 lights up evenly, irradiating a wide area with light.

[0049] Furthermore, the emergency unit 15 displays the state of the battery 16 and the state of the light source unit 12 with monitor lamps 76. For example, if the battery 16 is charging normally, the green battery monitor lamp 76 is lit, and if the light source unit 12 is operating normally, the red light source monitor lamp 76 is turned off. On the other hand, if there is an abnormality in the connection of the battery 16, the green battery monitor lamp 76 is turned off, and if an abnormality in the charging of the battery 16 or the end of the battery 16 life is detected, the green battery monitor lamp 76 flashes, and further, if there is an abnormality in the light source unit 12, the red light source monitor lamp 76 flashes.

[0050] The lighting or flashing of the monitor lamp 76 can be seen through the front part 33 of the globe 21. Since the emergency unit 15 is disposed in a part of the annular light source 40 and the monitor lamp 76 of the emergency unit 15 is disposed in a position closer to the front part 33 of the globe 21 than the annular light source 40, it is easy to see the lighting or flashing of the monitor lamp 76 through the globe 21 even when the normal light source element 45 is lit.

[0051] During inspection, the remote control is operated by pointing it at the lighting device 10. When a signal from the remote control is received by the remote control receiver 75 of the emergency unit 15, the emergency unit 15 executes inspection mode for the battery 16 and light source unit 12. During inspection mode, the green monitor lamp 76 for the battery and the red monitor lamp 76 for the light source flash alternately. The inspection result in inspection mode is displayed by the lit status of the monitor lamp 76, as described above. Note that inspection mode is also executed when the globe 21 is removed and the inspection switch 74 of the emergency unit 15 is operated.

[0052] To replace the battery 16, remove the globe 21, disconnect the fixture-side connector 65 from the light source connector 43, loosen the screws 52 that secure the light source unit 12 to the fixture body 20, shift the light source unit 12 to the side to remove the bell-shaped mounting holes 51 from the screws 52, and remove the light source unit 12 from the fixture body 20 (resulting in the state shown in Figure 5).Furthermore, remove the battery connector from the connecting connector 72 and the battery cord from the battery cord holder 77, loosen the decorative screws 81 to remove the battery mounting member 82, and then remove the battery 16.

[0053] The new battery 16 to be replaced is placed between the battery positioning protrusions 31 on the fixture body 20, and the battery mounting member 82 attached to the battery 16 is attached to the fixture body 20 with the decorative screws 81. The bell-shaped mounting portion 51 of the light source unit 12 is fitted into the screw 52 on the fixture body 20 side, the light source unit is shifted to the side, and the screw 52 is tightened to attach the light source unit 12 to the fixture body 20. The fixture-side connector 65 is connected to the light source connector 43, and the globe 21 is attached to the fixture body 20.

[0054] In the lighting device 10 configured as described above, the emergency unit 15 is arranged so as to penetrate the inside of the annular light source 40, so that the limited space within the fixture can be effectively utilized and the size can be made compact.

[0055] Furthermore, the regular light source elements 45 are arranged in a ring shape on the outer periphery of the annular light source 40, and the emergency light source elements 46 are arranged in a ring shape on the inner periphery, and the emergency unit 15 having the monitor lamp 76 is arranged inside the annular light source 40, so the regular light source elements 45 and the monitor lamp 76 are arranged at a distance from each other, making it possible to easily see the light of the monitor lamp 76 even when the regular light source elements 45 are lit.

[0056] Furthermore, since the monitor lamp 76 is disposed closer to the front surface 33 of the globe 21 than the annular light source 40, the light from the monitor lamp 76 can be more easily seen.

[0057] In addition, the emergency unit 15 is arranged inside the annular light source 40, and the light source side connector 43 is arranged in a position opposite this emergency unit 15, so that the fixture side connector 65 pulled out through the light source opening 47 inside the annular light source 40 can be easily connected to the light source side connector 43, improving wiring workability.

[0058] Furthermore, since the emergency unit 15 has a connection connector 72 at a position opposite the front portion 33 of the globe 21, when the globe 21 is removed, the battery connector of the battery 16 can be connected to the connection connector 72 without removing the light source unit 12 from the fixture body 20.

[0059] Next, FIG. 7 shows a second embodiment.

[0060] FIG. 7 shows a bottom view of the lighting device 10 with the globe 21 and the light source cover 42 removed.

[0061] The annular light source 40 has a protrusion (light source protrusion) 90 that protrudes into the inner light source opening 47. The protrusion 90 is provided at a position facing the emergency unit 15. A plurality of emergency light source elements 46 are arranged together on the protrusion 90.

[0062] Furthermore, a battery 16 is detachably arranged between the emergency unit 15 and the protrusion 90 at a position facing the light source opening 47 inside the annular light source 40 and the heat sink opening 50 inside the heat sink 41 .

[0063] The battery 16 is arranged in a wiring guide 91 with a gap between it and the wiring hole 24 so that a power line can pass through, and is also arranged along the side of the emergency unit 15 and detachably attached by a battery attachment member 92 attached to the fixture body 20.

[0064] The battery mounting member 92 has a holder portion 93 that holds the battery 16 by sandwiching it between the battery mounting member 92 and the wiring guide 91 and the emergency unit 15, and an arm portion 94 that extends from the holder portion 93 toward the mounting surface portion 22 of the fixture body 20, and the tip side of the arm portion 94 is attached to the fixture body 20 with a screw 95. The screw 95 is located in a position facing the light source opening 47 on the inside of the annular light source 40 and the heat sink opening 50 on the inside of the heat sink 41, and can be operated through the light source opening 47 on the inside of the annular light source 40 and the heat sink opening 50 on the inside of the heat sink 41.

[0065] The battery 16, together with the emergency unit 15, may penetrate the inside of the annular light source 40, with a portion of the battery 16 being disposed closer to the front surface 33 of the globe 21 in the light emission direction than the annular light source 40.

[0066] In the lighting device 10 of this embodiment, the emergency light source element 46 is arranged on the protrusion 90 that protrudes inside the annular light source 40, so that the light source opening 47 inside the annular light source 40 can be made larger except for the part of the protrusion 90, and the inside of the annular light source 40 can be used effectively.

[0067] Furthermore, since the battery 16 is detachably disposed inside the annular light source 40, the battery 16 can be easily replaced without removing the light source unit 12 from the fixture body 20.

[0068] The annular light source 40 may be one in which at least the normal light source elements 45 are arranged in an annular shape and a light source opening 47 is formed inside, and the annular light source 40 may be one in which a part of the annular shape is open.

[0069] Although several 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 embodied 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 within the scope and spirit of the invention, and are also included in the scope of the invention and its equivalents as defined in the claims. [Explanation of symbols]

[0070] 10. Lighting equipment 15 Emergency Unit 16 batteries 20. Instrument body 40 Annular Light Source 46 Emergency light source element 90 Protrusion

Claims

1. an instrument body; an annular light source having an annular substrate and a plurality of normal light source elements and a plurality of emergency light source elements mounted on the substrate, the annular light source being disposed in the fixture body; an emergency unit disposed in the fixture body and penetrating the inside of the annular light source; A lighting device comprising:

2. A removable battery is provided inside the annular light source.

2. The lighting device according to claim 1.

3. The substrate has a protruding portion that protrudes inward, and the emergency light source element is mounted on the protruding portion.

2. The lighting device according to claim 1.

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