Lighting device

Abstract

To provide a lighting device which enables a terminal block to be placed in a proper position to make a connection of an electric wire even if the electric wire is pulled into the lighting device from any of the back surface side and the side surface side of a device body.SOLUTION: A lighting device 10 includes: an elongated device body 11; a decorative frame 12; a light source unit 42; and a terminal block 43. The decorative frame 12 may be attached to the device body 11 in a first attachment orientation and a second attachment orientation in which an orientation of a longitudinal direction a is rotated by 180° from the first attachment orientation. The light source unit 42 is disposed at the decorative frame 12. The terminal block 43 is disposed offset to one side in a short direction b intersecting with the longitudinal direction a of the decorative frame 12.SELECTED DRAWING: Figure 3

Description

Technical Field

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

Background Art

[0002] Conventionally, there is a lighting device in which a decorative frame is arranged on the front side of a light source unit, and these light source unit and decorative frame are disposed in an appliance body.

[0003] In such a lighting device, a terminal block is used to connect a power supply wire drawn into the appliance body. However, since the wire may be drawn from the back side or the side of the appliance body, there is no appropriate position for the terminal block that can accommodate both the back side and the side drawing methods within the limited space inside the appliance, and it is impossible to accommodate both the back side and the side drawing methods.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] [[ID=3⑧]] The problem to be solved by the present invention is to provide a lighting device capable of connecting a wire by arranging a terminal block at an appropriate position regardless of whether the wire is drawn from the back side or the side of the appliance body.

Means for Solving the Problems

[0006] The lighting device according to the embodiment is elongated It has a rear portion with a rear wiring hole formed therein, and end plate portions provided at both ends of the rear portion in the longitudinal direction. an appliance body, a decorative frame, Power supply section and a terminal block. The decorative frame can be attached to the appliance body in either a first attachment orientation or a second attachment orientation in which the longitudinal direction is rotated 180° with respect to the first attachment orientation. Power supply sectionIt is installed in the decorative frame. The terminal block is offset to one side in the short direction intersecting the long direction of the decorative frame. In the makeup frame It will be installed. The end plates at both ends have knockout holes that are opened when electrical wires are pulled through, and the terminal block and power supply unit are aligned along the longitudinal direction of the decorative frame. [Effects of the Invention]

[0007] According to the lighting device of this embodiment, even if the wires are drawn in from either the back or the side of the fixture body, it is expected that the terminal block can be positioned appropriately to connect the wires. [Brief explanation of the drawing]

[0008] [Figure 1] This is a perspective view of a lighting device showing one embodiment. [Figure 2] This is a disassembled perspective view of the same lighting device. [Figure 3] This is an exploded perspective view of the decorative frame of the same lighting device, with the first mounting orientation. [Figure 4] This is an exploded perspective view of the decorative frame of the same lighting device, with the second mounting orientation. [Figure 5] This is an exploded perspective view of the decorative frame of the same lighting device. [Figure 6] This is a cross-sectional view of the same lighting device. [Figure 7] This is a rear view of the same lighting device. [Modes for carrying out the invention]

[0009] One embodiment will be described below with reference to the drawings.

[0010] As shown in Figures 1 to 4, the lighting device 10 is an emergency lighting device with the same cross-sectional shape as the cross-sectional shape in the short direction (width direction) that intersects the longitudinal direction of a long lighting fixture such as a base light installed on a ceiling surface or the installation surface. It is installed on the longitudinal end side of the lighting fixture to add an emergency lighting function.

[0011] The lighting device 10 is connected by wires to an emergency power supply unit installed externally, and is an emergency lighting device that lights up using emergency power supplied from the emergency power supply unit via the wires, for example, in the event of a power outage. The emergency power supply unit is a battery that stores power or a private power generator, and is capable of supplying emergency power to multiple emergency lighting devices.

[0012] The lighting device 10 comprises a fixture body 11, a decorative frame 12 that is detachably attached to the fixture body 11, and a main unit 13 attached to the decorative frame 12. The fixture body 11 and the decorative frame 12 have the same cross-sectional shape as the fixture body and the light source unit that is detachably attached to the fixture body of the lighting fixture, respectively, so that when installed on the end side of the lighting fixture, the external shape is continuous and a good appearance is obtained.

[0013] The fixture body 11 is formed in an elongated shape corresponding to the longitudinal direction of the lighting fixture. The fixture body 11 comprises a rear portion 16, side plate portions 17 on both sides in the short direction b of the rear portion 16, and end plate portions 18a and 18b at both ends in the longitudinal direction a of the rear portion 16, with the front side being open. In this embodiment, the reflector portion 19 protrudes from both side plate portions 17 so as to expand diagonally forward, but it may be formed in a shape such as an inverted Fuji shape, depending on the shape of the lighting fixture.

[0014] The rear section 16 is provided with a pair of mounting holes 22 for screwing it to the ceiling surface and a pair of mounting holes 23 for attaching it to suspension bolts protruding from the ceiling surface, both located at the center of the shorter side b. The rear section 16 is provided with a number of dowels 24 around the mounting holes 22 and 23, which reinforce the rear section 16 and also contact the ceiling surface.

[0015] On the rear portion 16, a rear wiring hole 25 is formed between the mounting holes 22 and 23 at both ends, offset to one side in the short direction b, and is used when drawing in electrical wires from the rear side of the fixture body 11.

[0016] On the back surface portion 16, between the installation holes 22 and 23 on both end sides, in the vicinity of the back surface side wiring hole 25, a relief hole 26 is provided to avoid contact with the main body unit 13 side. The relief hole 26 is composed of a plurality of holes, and includes two relief holes 26a arranged in the short side direction b of the back surface portion 16, and two relief holes 26b and 26c on both sides in the long side direction a of the back surface portion 16 with respect to these two relief holes 26a.

[0017] On both end plate portions 18a and 18b, on the peripheral side surface with respect to the back surface portion 16 of the appliance main body 11, end surface side wiring holes 27a and 27b used when drawing in an electric wire from the end surface side are respectively provided. The end surface side wiring holes 27a and 27b may be knockout holes that are opened when in use. On both end sides in the long side direction a inside the appliance main body 11, mounting members 28 for screwing and attaching the decorative frame 12 are attached. The mounting member 28 has a mounting base portion 29 that protrudes more than the front end sides of the side plate portion 17 and the end plate portions 18a and 18b of the appliance main body 11, and a screw hole 30 is provided at the center in the short side direction b of this mounting base portion 29. The mounting members 28 at both ends are provided in symmetric positions with a symmetric shape with respect to the long side direction a of the appliance main body 11.

[0018] Also, the decorative frame 12 is made of metal, for example, made of aluminum die-cast, and is formed in a long shape that is long in the direction corresponding to the long side direction a of the appliance main body 11. The decorative frame 12 includes a surface portion 33 with a convex arc-shaped cross section in the short side direction b, and end surface portions 34a and 34b at both ends in the long side direction a of this surface portion 33, and the back side is open. The decorative frame 12 is arranged on the front side of the appliance main body 11 in a state where the mounting base portion 29 of the mounting member 28 protruding from the front side of the appliance main body 11 is inserted into the opening on the back side.

[0019] A circular light source window 35 is formed at the center of the surface portion 33 in the long side direction a and the short side direction b. On the back side (inner surface side) of the surface portion 33, a plurality of fixing bosses 36 for attaching the main body unit 13 are protruding around the light source window 35.

[0020] Mounting holes 37 for attaching the decorative frame 12 to the fixture body 11 are provided at both ends of the longitudinal direction a of the surface portion 33 and in the center of the short direction b. The mounting holes 37 are provided by mounting bosses 38 that protrude from the back side of the surface portion 33. The decorative frame 12 is attached to the fixture body 11 by screwing a screw inserted into the mounting boss 38 from the surface side of the surface portion 33 through the mounting holes 37 into the screw holes 30 of the mounting member 28 of the fixture body 11.

[0021] The decorative frame 12 can be attached to the fixture body 11 in either a first mounting orientation (as shown in Figures 1 to 3) in which the orientation of the end faces 34a and 34b is aligned with the end plate portions 18a and 18b of the fixture body 11, or a second mounting orientation (as shown in Figure 4) in which the longitudinal direction a is rotated 180° from the first mounting orientation, with the orientation of the end face 34a aligned with the end plate portion 18b of the fixture body 11 and the orientation of the end face 34b aligned with the end plate portion 18a of the fixture body 11.

[0022] Furthermore, as shown in Figures 3 to 6, the main unit 13 includes a heat sink 41, a light source unit 42 and a terminal block 43 arranged on the heat sink 41. The light source unit 42 includes a light source section 44 and a power supply section 45.

[0023] The heat sink 41 is made of a metal plate and is formed in an elongated shape in the direction corresponding to the longitudinal direction a of the decorative frame 12. The heat sink 41 has a first heat sink portion 48 that is aligned horizontally and a second heat sink portion 49 that is bent vertically from one side of the first heat sink portion 48 in the short direction b. The first heat sink portion 48 is placed on a plurality of fixing bosses 36 of the decorative frame 12 and is fixed to the back side of the decorative frame 12 with screws that are screwed into the fixing bosses 36. The second heat sink portion 49 is positioned to protrude from the back side of the decorative frame 12 from one side in the short direction b of the decorative frame 12.

[0024] The light source unit 42 is attached to the first heat sink portion 48 of the heat sink 41, and is positioned in the center of the decorative frame 12 in both the longitudinal direction a and the short direction b when the heat sink 41 is attached to the decorative frame 12.

[0025] The light source section 44 of the light source unit 42 comprises a light source module 51, a socket 52 that holds the light source module 51, and a lens 53 that faces the light source module 51. The light source module 51 is constructed by mounting light source elements such as light-emitting diodes on a rectangular substrate. The socket 52 holds the light source module 51 and is screwed to the front side, which is the first surface of the first heat sink portion 48 of the heat sink 41. The socket terminals of the socket 52 are electrically connected to the light source module 51. Output wires drawn from the power supply unit 45 are inserted into the socket 52 and electrically connected to the socket terminals. The lens 53 is fitted into the rear side of the light source window 35 of the decorative frame 12 and controls the light distribution of light that enters from the light source module 51 and is emitted.

[0026] The power supply unit 45 of the light source unit 42 includes a power supply circuit and a power supply case 55 that houses this power supply circuit. The power supply unit 45 is attached to the rear side, which is the second surface of the first heat sink portion 48 of the heat sink 41. For example, multiple claws protruding from the front side of the power supply case 55 are locked into the first heat sink portion 48 for attachment.

[0027] Multiple protrusions 56 protrude from the rear side of the power supply case 55. The protrusions 56 consist of two protrusions 56a aligned in the short direction b of the decorative frame 12, and a protrusion 56b positioned relative to these two protrusions 56a in the longitudinal direction a of the decorative frame 12. The positions of these protrusions 56 are such that they are positioned at the location of the relief holes 26 of the fixture body 11, regardless of whether the decorative frame 12 is mounted to the fixture body 11 in the first or second mounting orientation described above, and do not interfere with the fixture body 11. Note that the protrusions 56 are not required.

[0028] The power supply circuit of the power supply unit 45 converts the emergency power input from an external source into a predetermined illuminating power required to light up the light source module 51 and supplies it to the light source module 51. The power supply circuit is able to supply illuminating power to the light source module 51 when the output line connected to this power supply circuit is connected to the socket 52.

[0029] The terminal block 43 is attached to the second heat sink portion 49 of the heat sink 41 and is positioned adjacent to the light source unit 42 in the longitudinal direction a of the decorative frame 12. The terminal block 43 comprises a terminal block body 60, which is a case, and terminals arranged inside the terminal block body 60. The terminal block body 60 is provided with a plurality of wire insertion holes 61 into which electric wires are inserted and connected. Inside each wire insertion hole 61, terminals are arranged to which electric wires are electrically connected. At least the wire insertion holes 61 of the terminal block 43 are positioned to protrude beyond the rear surface of the decorative frame 12, and are configured to facilitate the insertion and connection of electric wires into the wire insertion holes 61.

[0030] The terminal block 43 is positioned offset to one side of the decorative frame 12 in the short direction b, and the wire insertion holes 61 are provided on the side opposite to the direction of the offset in the short direction b of the decorative frame 12. As shown in Figure 7, the side of the short direction b to which the terminal block 43 is offset is shifted in the short direction b without overlapping with the position of the rear wiring hole 25 of the fixture body 11. Therefore, in a rear view of the fixture body 11, the terminal block 43 and the rear wiring hole 25 are arranged side by side in the short direction b of the fixture body 11. The side of the terminal block 43 on which the wire insertion holes 61 are provided faces the front area of ​​the rear wiring hole 25.

[0031] Next, in order to install the lighting device 10, the wires that are routed from the emergency power supply to the installation location are pulled into the fixture body 11, and the fixture body 11 is installed in the installation location.

[0032] In this case, depending on the installation situation, it is possible to pull the wire through the rear wiring hole 25 of the rear part 16 of the fixture body 11, through the end face wiring hole 27a of the end plate part 18a on one end, or through the end face wiring hole 27b of the end plate part 18b on the other end.

[0033] First, when the electrical wires are pulled in through the rear wiring hole 25 and the fixture body 11 is installed, the electrical wires pulled into the fixture body 11 are inserted into the wire insertion holes 61 of the terminal block 43 which is integrated with the decorative frame 12 and connected. As shown in Figure 3, the decorative frame 12 is assembled to the front side of the fixture body 11 in the first mounting orientation so that the rear wiring hole 25 and the terminal block 43 are aligned in the short side direction b of the fixture body 11.

[0034] In this combination, the second heat sink portion 49 of the heat sink 41 protruding from the rear side of the decorative frame 12, the power supply unit 45 and terminal block 43 of the light source unit 42 are inserted inside the fixture body 11, and the mounting base portion 29 of the mounting member 28 protruding from the front side of the fixture body 11 is inserted inside the decorative frame 12.

[0035] Screws are threaded through each mounting hole 37 of the decorative frame 12 into the mounting member 28 of the fixture body 11, thereby attaching the decorative frame 12 to the fixture body 11.

[0036] When the decorative frame 12 is attached to the fixture body 11 in the first mounting orientation, the rear wiring hole 25 and the terminal block 43 are aligned in the short-side direction b of the fixture body 11. As a result, the wires pulled into the fixture body 11 from the rear wiring hole 25 are bent in the space in front of the rear wiring hole 25 and housed in a state where they are connected to the terminal block 43.

[0037] The protruding portion 56 that extends from the rear side of the power supply unit 45 is positioned at the location of the relief hole 26 on the rear side 16 of the fixture body 11, preventing interference with the fixture body 11. Specifically, two protruding portions 56a aligned in the short direction b are positioned in two relief holes 26a aligned in the short direction b, and one protruding portion 56b offset in the longitudinal direction a from the two protruding portions 56a is positioned in one of the relief holes 26b in the longitudinal direction a. No protruding portion 56 is positioned in the other relief hole 26c.

[0038] Furthermore, when the fixture body 11 is installed by pulling the wires through the end-face wiring hole 27a of the end plate portion 18a on one end, the wires pulled into the fixture body 11 are inserted and connected to the wire insertion hole 61 of the terminal block 43 which is integrated with the decorative frame 12. As shown in Figure 3, the decorative frame 12 is assembled to the front side of the fixture body 11 in the first mounting orientation so that the terminal block 43 is positioned on the end-face wiring hole 27a side of the end plate portion 18a on one end.

[0039] In this combination, the second heat sink portion 49 of the heat sink 41 protruding from the rear side of the decorative frame 12, the power supply unit 45 and terminal block 43 of the light source unit 42 are inserted inside the fixture body 11, and the mounting base portion 29 of the mounting member 28 protruding from the front side of the fixture body 11 is inserted inside the decorative frame 12.

[0040] Screws are threaded through each mounting hole 37 of the decorative frame 12 into the mounting member 28 of the fixture body 11, thereby attaching the decorative frame 12 to the fixture body 11.

[0041] As the decorative frame 12 is attached to the fixture body 11 in the first mounting orientation, the terminal block 43 is positioned on the end-face side wiring hole 27a side. Therefore, the wires pulled into the fixture body 11 from the end-face side wiring hole 27a are pulled into the space in the lateral area opposite to the side of the terminal block 43 where the wire insertion holes 61 are provided, and are bent and housed in a state connected to the terminal block 43.

[0042] The protruding portion 56 that extends from the rear side of the power supply unit 45 is positioned at the location of the relief hole 26 on the rear side 16 of the fixture body 11, preventing interference with the fixture body 11. Specifically, two protruding portions 56a aligned in the short direction b are positioned in two relief holes 26a aligned in the short direction b, and one protruding portion 56b offset in the longitudinal direction a from the two protruding portions 56a is positioned in one of the relief holes 26b in the longitudinal direction a. No protruding portion 56 is positioned in the other relief hole 26c.

[0043] Furthermore, when the fixture body 11 is installed by pulling the wires through the end-face wiring hole 27b of the end plate portion 18b on the other end, the wires pulled into the fixture body 11 are inserted into the wire insertion hole 61 of the terminal block 43 for connection. As shown in Figure 4, the decorative frame 12 is assembled to the front side of the fixture body 11 in a second mounting orientation, which is a 180° rotation in the longitudinal direction relative to the first mounting orientation, so that the terminal block 43 is positioned on the end-face wiring hole 27b side of the end plate portion 18b on the other end.

[0044] In this combination, the second heat sink portion 49 of the heat sink 41 protruding from the rear side of the decorative frame 12, the power supply unit 45 and terminal block 43 of the light source unit 42 are inserted inside the fixture body 11, and the mounting base portion 29 of the mounting member 28 protruding from the front side of the fixture body 11 is inserted inside the decorative frame 12.

[0045] Screws are threaded through each mounting hole 37 of the decorative frame 12 into the mounting member 28 of the fixture body 11, thereby attaching the decorative frame 12 to the fixture body 11.

[0046] As the decorative frame 12 is attached to the fixture body 11 in the second mounting orientation, the terminal block 43 is positioned on the end-face side wiring hole 27b side. Therefore, the wires pulled into the fixture body 11 from the end-face side wiring hole 27b are pulled into the space in the lateral area opposite to the side of the terminal block 43 where the wire insertion holes 61 are provided, and are bent and housed in a state connected to the terminal block 43.

[0047] The protruding portion 56 that extends from the rear side of the power supply unit 45 is positioned at the location of the relief hole 26 on the rear side 16 of the fixture body 11, preventing interference with the fixture body 11. Specifically, two protruding portions 56a aligned in the short direction b are positioned in two relief holes 26a aligned in the short direction b, and one protruding portion 56b offset from the two protruding portions 56a in the longitudinal direction a is positioned in the other relief hole 26c in the longitudinal direction a. No protruding portion 56 is positioned in the other relief hole 26b.

[0048] Then, when emergency power is supplied to the lighting device 10 from the emergency power supply unit via the power lines, the power supply unit 45 converts the emergency power into a predetermined lighting power and supplies it to the light source module 51. The light source module 51, having received the lighting power, lights up, and its light is shone through the lens 53.

[0049] Furthermore, the heat generated by the light source module 51 when it is lit is transferred to the heat sink 41, and then dissipated into the air from the heat sink 41.

[0050] In the lighting device 10 configured as described above, the light source unit 42 and the terminal block 43 are integrally arranged in the decorative frame 12 by a heat sink 41, making it easy to connect wires to the terminal block 43 and to assemble the device.

[0051] Since the light source unit 42 and the terminal block 43 are arranged side by side along the longitudinal direction a of the decorative frame 12, the limited space inside the fixture can be effectively utilized for component placement.

[0052] The terminal block 43 is offset to one side of the decorative frame 12 in the short direction b, and the decorative frame 12 can be mounted on the fixture body 11 by rotating its orientation in the long direction a by 180°. Therefore, even when the wires are drawn in from the back side, one end face side, or the other end face side of the fixture body 11, the terminal block 43 can be positioned appropriately and the wires connected.

[0053] Since the terminal block 43 has wire insertion holes 61 on the side opposite to the direction of offset to one side in the short direction b, the space on the opposite side of the offset direction can be utilized to facilitate wire wiring work. Furthermore, because the direction of connection to the terminal block 43 intersects with the direction in which the wires pulled out from the back or end face of the device body 11 are made less likely to come out of the terminal block 43.

[0054] Since the wire insertion holes 61 of the terminal block 43 are positioned further out than the back side of the decorative frame 12, it is easier to insert and connect the wires into the wire insertion holes 61.

[0055] In a rear view of the fixture body 11, the terminal block 43 and the rear wiring hole 25 are arranged side by side in the short-side direction b of the fixture body 11. Therefore, the wires pulled in from the rear wiring hole 25 can be bent and connected to the terminal block 43, and space for bending the wires can be secured.

[0056] Furthermore, even if the light source unit 42 has a protruding portion 56 that protrudes from the rear side, by providing a relief hole 26 in the rear portion 16 of the fixture body 11 for the protruding portion 56 to be positioned, it is possible to prevent the protruding portion 56 from hitting the rear portion 16 and hindering assembly when attaching the decorative frame 12 to the fixture body 11.

[0057] Furthermore, when the decorative frame 12 is attached to the fixture body 11, the back side of the light source unit 42 may engage with the back portion 16 of the fixture body 11, thereby holding the light source unit 42 between the fixture body 11 and the decorative frame 12. In this case, even if the decorative frame 12 is attached to the fixture body 11 with its longitudinal direction a rotated by 180°, the back side of the light source unit 42 will still engage with the back portion 16 of the fixture body 11.

[0058] 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]

[0059] 10 Lighting devices 11. Main body of the device 12 Makeup frame 42 Light source units 43 Terminal block 61 Wire insertion holes a Longitudinal direction b Short direction

Claims

1. A device body having a long, rectangular rear section with a rear wiring hole formed therein, and end plate sections provided at both ends of the rear section in the longitudinal direction; The fixture body is provided with a decorative frame that allows it to be mounted in either a first mounting orientation or a second mounting orientation in which the longitudinal orientation is rotated 180° relative to the first mounting orientation; The power supply unit installed in the aforementioned decorative frame; A terminal block is disposed on the decorative frame, offset to one side in the shorter direction intersecting the longitudinal direction of the decorative frame; Equipped with, The end plate portions at both ends have knockout holes that are opened when the electric wire is pulled in. A lighting device characterized in that the terminal block and the power supply unit are arranged in the longitudinal direction of the decorative frame.

2. The terminal block has wire insertion holes on the side opposite to the direction that is offset to one side in the shorter direction. The lighting device according to claim 1, characterized by the features described above.

3. The power supply unit is configured to engage with the rear portion regardless of whether the decorative frame is mounted on the main body of the fixture in the first or second mounting orientation. The lighting device according to claim 1, characterized by the features described above.

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