Lighting device

Abstract

To provide an illuminating device that can be made compact.SOLUTION: An illuminating device 10 comprises a case 11, a light source unit 12, and a fitting member 13. The case 11 comprises an appliance body 20, and a translucent cover 21 fitted to a side of a front surface of the appliance body 20. The light source unit 12 is housed in the case 11. The fitting member 13 comprises an appliance body fitting part 50 fitted to a side of an inner surface of the appliance body 20, a rising part 51 rising from a side of one end of the appliance body fitting part 50 opposed to a side of a side surface of the appliance body 20, and a light source unit fitting part 52 protruded toward a direction opposite to the appliance body fitting part 50 from a side of a tip of the rising part 51, and fitted with the light source unit 12.SELECTED DRAWING: Figure 3

Description

Technical Field

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

Background Art

[0002] Conventionally, there has been a lighting device provided with a light source unit having a waterproof structure.

[0003] Also, in a lighting device with corrosion and acid resistance specifications, a light source is housed in a sealed housing. When a light source unit is used as the light source, a mounting member is disposed in the housing, and the light source unit is attached to this mounting member. Depending on the mounting structure, the housing tends to be large.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems 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 miniaturized.

Means for Solving the Problems

[0006] The lighting device of the embodiment includes a housing, a light source unit, and a mounting member. The housing has an instrument body and a light-transmitting cover attached to the front side of the instrument body. The light source unit has a cylindrical and light-transmitting light source cover and a light source module housed in the light source cover, and is housed in the housing. The mounting member includes a housing mounting portion attached to the inner surface side of the instrument body, a standing portion that rises from one end side of the housing mounting portion facing the side surface side of the instrument body and is further arranged closer to the side surface side with respect to the housing mounting portion, and a light source unit mounting portion that protrudes from the tip side of the standing portion in a direction opposite to the housing mounting portion and to which the light source unit is attached. A side wall portion that is bent from the side of the rising portion toward the protruding direction of the light source unit mounting portion, It has. [Effects of the Invention]

[0007] According to the lighting device of this embodiment, miniaturization is expected. [Brief explanation of the drawing]

[0008] [Figure 1] This is a perspective view of a lighting device showing one embodiment. [Figure 2] The same lighting device is shown, with (a) being a cross-sectional view and (b) being a bottom view of the fixture body. [Figure 3] This is a magnified cross-sectional view of the same lighting device. [Figure 4] This is an enlarged bottom view of the fixture body of the same lighting device. [Figure 5] This is a cross-sectional view of the same lighting device as shown in Figure 3, view AA. [Figure 6] This is a perspective view of the light source unit used in the same lighting device. [Figure 7] This is a perspective view of the mounting member used in 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 5, the lighting device 10 has excellent acid and chemical resistance and can be used in places where corrosive gases are likely to be generated or in environments with high humidity. The lighting device 10 comprises a long housing 11, a long light source unit 12 housed inside the housing 11, and a pair of mounting members 13 that attach both ends of the light source unit 12 in the longitudinal direction to the housing 11.

[0011] Mounting brackets 14 are attached to the rear side of the housing 11. The mounting brackets 14 are longer than the longitudinal length of the housing 11, with both ends protruding beyond the ends of the housing 11, and mounting holes 15 are provided in these protruding parts. The lighting device 10 is attached to the installation location by screwing nuts through the mounting holes 15 at both ends of the mounting brackets 14 onto a pair of suspension bolts provided at the installation location, such as a ceiling.

[0012] The housing 11 is constructed using a material with excellent corrosion and acid resistance, and is designed to maintain a high level of airtightness within the housing 11. The housing 11 comprises a fixture body 20, a translucent cover 21 attached to the front side of the fixture body 20, a packing 22 interposed between the fixture body 20 and the translucent cover 21, and a plurality of latches 23 for detachably attaching the translucent cover 21 to the fixture body 20. A sealed internal space 24 is formed inside the housing 11.

[0013] The main body of the device 20 is made of a material with high acid and chemical resistance, such as glass fiber reinforced polyester, and is formed as a single piece.

[0014] The device body 20 has a rear portion 25 that is attached to the installation site, and a side portion 26 that protrudes from the periphery of the rear portion 25 toward the front side, or the lower side. The side portion 26 has side portions (end portions) 26a at both ends in the longitudinal direction, and side portions 26b in the width direction, which is the shorter direction intersecting the longitudinal direction. It is formed in a curved shape from the rear portion 25 to the side portion 26 (side portions 26a, 26b).

[0015] The side surfaces 26a at both ends of the fixture body 20 are provided with wire insertion sections 27 that protrude inward or are recessed into the fixture body 20. A wire insertion hole 28 is formed in this wire insertion section 27 for drawing in an electric wire L that supplies external power. A bushing is attached to the wire insertion hole 28, through which the electric wire L is inserted and which seals the space between the bushing and the wire insertion hole 27.

[0016] The light-transmitting cover 21 is made of, for example, an acrylic resin that has light-transmitting properties and is difficult to discolor, and is integrally formed. The light-transmitting cover 21 has a peripheral portion protruding toward the back side with respect to the front portion, and the peripheral portion is fitted to the peripheral portion of the instrument body 20 via a packing 22 and attached in a sealed state by a plurality of latches 23. Note that as long as the light-transmitting cover 21 has light-transmitting properties at least corresponding to the light irradiation direction, for example, the peripheral portion may be non-light-transmitting.

[0017] Also, as shown in FIGS. 3, 5, and 6, the light source unit 12 has a waterproof structure. The light source unit 12 includes a long and cylindrical light source cover 30 having light-transmitting properties, a support portion 31 inserted into the light source cover 30, a light source module 32 attached to the support portion 31 and a power supply unit (not shown), and a pair of caps 34 disposed at both ends of the light source cover 30 via packings 33 and attached to the support portion 31.

[0018] The light source module 32 includes a long substrate 35 and a plurality of light-emitting elements 36 such as light-emitting diodes mounted on the substrate 35. The light source module 32 has the substrate 35 attached to the front side of the support portion 31 and irradiates light in the forward light irradiation direction.

[0019] The power supply unit converts external power such as AC power input from the outside into lighting power such as DC power for lighting the light source module 32 and supplies it to the light source module.

[0020] The cap 34 has a closing portion 37 that closes the end face of the light source cover 30 and a protruding portion 38 that protrudes from the front side of the closing portion 37 toward the outside in the longitudinal direction.

[0021] A mounting plate 39, formed from a metal plate with a roughly L-shaped cross-section, is attached from the closed portion 37 to the protruding portion 38. At the center of the mounting plate 39 on the protruding portion 38 side, a mounting screw 40 for attaching the light source unit 12 to a mounting member 13 disposed on the fixture body 20 is held in a rotatable manner. This mounting screw 40 is inserted from the front side of the protruding portion 38 of the cap 34, passes through the mounting plate 39, and is rotatably held by the mounting plate 39.

[0022] A suspension bracket 41 is attached to one side in the width direction relative to the mounting screw 40 at the mounting plate 39 located on the protruding portion 38 side. The suspension bracket 41 temporarily suspends the light source unit 12 from the fixture body 20. The suspension bracket 41 is made of wire and has arc-shaped hooking portions 42 at both ends. The hooking portion 42 at the lower end of the suspension bracket 41 is positioned to hook onto the lower surface of the mounting plate 39, and the hooking portion 42 at the upper end can be hooked onto the mounting member 13.

[0023] The closing portion 37 of the cap 34 is provided with a wiring outlet 43 on the side opposite to the hanging bracket 41 on one side in the width direction. Wiring electrically connected to the electric wire section inside the light source unit 12 is drawn out from this wiring outlet 43.

[0024] Furthermore, as shown in Figures 3, 4, and 7, the mounting member 13 is formed from a metal plate. The mounting member 13 is positioned at both ends in the longitudinal direction within the fixture body 20, facing the side surface 26a on the end face side, and the caps 34 at both ends in the longitudinal direction of the light source unit 12 are attached to it.

[0025] The mounting member 13 includes a rectangular, flat mounting portion 50 attached to the back surface 25 of the fixture body 20, a rising portion 51 that rises approximately at a right angle from one end of the mounting portion 50 facing the inner surface of the side surface 26a on the end face side (the inner surface of the wire insertion portion 27), a light source unit mounting portion 52 that protrudes from the tip of the rising portion 51 in the direction opposite to the mounting portion 50, a folded portion 53 that is bent from the tip of the light source unit mounting portion 52 so as to be approximately parallel to and facing the rising portion 51, side wall portions 54 that are bent from both sides of the rising portion 51 toward the direction of protrusion of the light source unit mounting portion 52, and a wiring opening 55 provided in the inner area of ​​the rising portion 51.

[0026] The fixture body mounting portion 50 is formed in the shape of a long rectangular plate along the longitudinal direction of the fixture body 20. The fixture body mounting portion 50 is provided with a plurality of mounting holes 56 for screw fastening to the fixture body 20 on a center line along the center in the width direction, and a wire holding portion 57 is provided at a position offset to one side in the width direction of the fixture body mounting portion 50 relative to these mounting holes 56. The wire holding portion 57 is cut and raised in an arc shape on the inner surface side of the back portion 25 between two mounting holes 56, at a position closer to the mounting hole 56 on the side closer to the wiring opening 55. A cable tie a is inserted through the wire holding portion 57, and this cable tie a holds the wire L that is pulled in from the wire insertion hole 28 of the fixture body 20 through the wiring opening 55 at a position offset to one side in the width direction of the mounting member 13.

[0027] The rising portion 51 is extended from both sides in the width direction of the fixture body mounting portion 50. Between the rising portions 51 on both sides, a wiring opening 55 is formed, which is a rectangular opening larger than the wire insertion hole 28 and faces the wire insertion hole 28.

[0028] A mounting hole 58 is provided in the center of the light source unit mounting section 52, into which the mounting screw 40 of the light source unit 12 is screwed. The light source unit mounting section 52 is provided with a groove 59 through which the upper end of the suspension bracket 41 is detachably inserted. As the suspension bracket 41 inserted into the groove 59 descends, the hook portion 42 on the upper end can hook onto the light source unit mounting section 52.

[0029] The folded portion 53 is bent from the light source unit mounting portion 52, thereby improving the strength of the light source unit mounting portion 52.

[0030] The side wall portion 54 is formed with a sloping cutout relief portion 60 on the sides opposite to the rising portion 51 and the light source unit mounting portion 52, respectively, so as to be arranged along the curved inner surface shape between the back portion 25 and the side portion 26a of the fixture body 20, and the inner surface shape of the wire insertion portion 27.

[0031] The mounting member 13 is attached by screws or bolts and nuts, with the mounting portion 50 positioned on the inner surface of the rear portion 25 of the fixture body 20 and passing through each mounting hole 56. The rising portion 51 of the mounting member 13 attached to the fixture body 20 faces the inner surface of the side portion 26a on the end face side of the fixture body 20 (the inner surface of the wire insertion portion 27), and the wiring opening 55 of this rising portion 51 faces the wire insertion hole 28 of the fixture body 20. The light source unit mounting portion 52 is positioned to protrude forward from the front end of the side portion 26 of the fixture body 20. The side wall portion 54 has a relief portion 60 that is positioned along the curved inner surface shape between the rear portion 25 and the side portion 26a of the fixture body 20, and the inner surface shape of the wire insertion portion 27. As a result, the mounting member 13 is positioned relatively close to the longitudinal end of the fixture body 20.

[0032] When installing the lighting device 10, the fixture body 20, with the light-transmitting cover 21 and light source unit 12 removed, is installed at the installation location using the mounting bracket 14, and the electric wire L is pulled into the fixture body 20 through the wire insertion hole 28 and the wiring opening 55 of the mounting member 13. The pulled-in electric wire L is held to the mounting member 13 by a cable tie a that is passed through the electric wire holding part 57 of the mounting member 13. The electric wire L held by the cable tie a is positioned offset to one side in the width direction of the fixture body mounting part 50 of the mounting member 13, preventing interference with the screws or bolts that attach the mounting member 13 to the fixture body 20 at the center in the width direction of the fixture body mounting part 50.

[0033] The hanging brackets 41 at both ends of the light source unit 12 are hooked into the grooves 59 of the mounting members 13 at both ends of the fixture body 20, and the light source unit 12 is temporarily suspended at a distance below the fixture body 20 via the pair of hanging brackets 41. In this temporarily suspended state, the electric wire L drawn into the fixture body 20 and the wiring drawn out from the light source unit 12 are electrically connected through the space between the fixture body 20 and the light source unit 12.

[0034] The light source unit 12 is pushed up into the fixture body 20, and the caps 34 at both ends of the light source unit 12 are positioned on the mounting members 13 at both ends of the fixture body 20. The closing portion 37 of the cap 34 is positioned to face the inner surface of the rising portion 51 of the mounting member 13, and the protruding portion 38 of the cap 34 is positioned to face the light source unit mounting portion 52 of the mounting member 13. The mounting screws 40 held by the protruding portion 38 of the cap 34 are screwed into the mounting holes 58 of the light source unit mounting portion 52 of the mounting member 13 and tightened, fixing both ends of the light source unit 12 to the mounting members 13 at both ends of the fixture body 20.

[0035] When pushing the light source unit 12 into the fixture body, the folded portion of the wiring extending from the end of the light source unit 12 is inserted into the wiring opening 55 of the mounting member 13. This prevents the wiring from getting caught on the mounting member 13, allowing the light source unit 12 to be positioned inside the fixture body 20. The wiring, via the folded portion, heads towards the center of the fixture body 20, but is positioned offset to the opposite side in the width direction from the electric wire L, which is positioned offset to one side in the width direction of the fixture body mounting portion 50 of the mounting member 13. This prevents the wiring from overlapping with the electric wire L or interfering with the screws or bolts that attach the mounting member 13 to the fixture body 20 at the center in the width direction of the fixture body mounting portion 50.

[0036] The light-transmitting cover 21 is placed over the front side of the fixture body 20 and attached to the fixture body 20 with multiple latches 23.

[0037] Then, when external power is supplied to the power supply unit of the light source unit 12 through the wire L, the light source module 32 lights up, and light from the light source module 32 passes through the light source cover 30 and the light-transmitting cover 21 and is projected outwards.

[0038] In the lighting device 10 configured in this way, the fixture body 20 is formed in a curved shape from the back portion 25 to the side portion 26a on the end face side. Therefore, the position of the rising portion 51 of the mounting member 13 attached to the back portion 25 is determined to be close to the side portion 26a on the end face side of the fixture body 20.

[0039] If, hypothetically, the light source unit mounting section 52 is provided so as to protrude from the tip of the rising section 51 in the same direction as the fixture body mounting section 50, then in order to attach the light source unit 12 to this light source unit mounting section 52, the position of the mounting member 13 must be positioned further outward in the longitudinal direction of the fixture body 20, relative to the mounting unit 12. As a result, the length of the fixture body 20 becomes longer, and the housing 11 becomes larger.

[0040] In this embodiment, the mounting member 13 is provided such that the light source unit mounting portion 52 protrudes from the tip side of the rising portion 51 in the direction opposite to the fixture body mounting portion 50. Therefore, the light source unit 12 can be attached without positioning the mounting member 13 further outward in the longitudinal direction of the fixture body 20, and the housing 11 can be made smaller.

[0041] Furthermore, since the side wall portions 54 are bent from both sides of the rising portion 51 toward the protruding direction of the light source unit mounting portion 52, the strength of the mounting member 13 can be improved. In addition, the side wall portion 54 is provided with a relief portion 60 that is arranged in accordance with the curved inner surface shape between the rear portion 25 and the side portion 26a of the fixture body 20, and the inner surface shape of the wire insertion portion 27, so that the mounting member 13 can be brought closer to the end side portion 26a of the fixture body 20, and the housing 11 can be made smaller.

[0042] Furthermore, since a wiring opening 55 is provided in the inner area of ​​the rising portion 51, it becomes possible to pass the electric wire L that is drawn into the fixture body 20 through it, and to arrange the wiring that is pulled out from the light source unit 12, which contributes to miniaturizing the housing 11.

[0043] 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]

[0044] 10 Lighting devices 11 cabinets 12 Light source units 13 Mounting components 20 Main body of the device 21 Translucent cover 50 Fixture body mounting section 51. Upright section 52 Light source unit mounting section 54 Side wall section 55 Wiring opening

Claims

1. A housing comprising a main body of the device and a translucent cover attached to the front side of the main body of the device; A light source unit having a cylindrical, translucent light source cover and a light source module housed within this light source cover, and housed within the housing; A lighting device comprising: a mounting member having: a fixture body mounting portion attached to the inner surface of the fixture body; a rising portion that rises from one end of the fixture body mounting portion facing the side surface of the fixture body and is positioned closer to the side surface of the fixture body mounting portion; a light source unit mounting portion that protrudes from the tip of the rising portion in the direction opposite to the fixture body mounting portion and to which the light source unit is attached; and a side wall portion that is bent from the side of the rising portion toward the protruding direction of the light source unit mounting portion.

2. The mounting member has a wiring opening on the inside of the rising portion. The lighting device according to claim 1, characterized by its features.

Images