JP2016162595A - Lighting fixture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lighting fixture the number of components of which is reduced and the housing of which is downsized.SOLUTION: A lighting fixture 12 includes a housing 20, a light-emitting module 43, a power supply unit 25 and a mounting board 22. The light-emitting module 43 includes a light-emitting element and a substrate 45 where the light-emitting element is mounted. The power supply unit 25 supplies power to the light-emitting module 43. The mounting board 22 is provided with the light-emitting module 43 and the power supply unit 25 and is fixed to the housing 20.SELECTED DRAWING: Figure 1

Description

  Embodiments described herein relate generally to a lighting fixture incorporating a light emitting module and a power supply unit.

  Conventionally, in lighting fixtures such as crime prevention lights and street lights, for example, a light emitting module and a power supply unit that supplies power to the light emitting module are arranged in a housing. The light emitting module is attached to a metal plate in order to efficiently dissipate heat from the light emitting element to the housing, and this metal plate is attached to the housing. Further, the power supply unit is attached to an insulating plate in order to ensure insulation, and this insulating plate is attached to the casing. Thus, the light emitting module and the power supply unit are each attached to separate parts and arranged in the housing.

JP2013-125675A

  However, since the light emitting module and the power supply unit are attached to separate parts and arranged in the case, the number of parts increases, and it is necessary to take a large space in the case, resulting in a large case.

  The problem to be solved by the present invention is to provide a lighting apparatus capable of reducing the number of parts and reducing the size of the housing.

  The lighting fixture of the embodiment includes a housing, a light emitting module, a power supply unit, and a mounting plate. The light emitting module has a light emitting element. The power supply unit supplies power to the light emitting module. The attachment plate attaches the light emitting module and the power supply unit and is fixed to the housing.

  According to the present invention, a reduction in the number of parts and a reduction in size of the housing can be expected.

It is sectional drawing of the lighting fixture which shows one Embodiment. It is a perspective view of the decomposition | disassembly state of a lighting fixture same as the above. It is a perspective view of the illuminating device using a lighting fixture same as the above. It is a circuit diagram of an illuminating device same as the above.

  Hereinafter, an embodiment will be described with reference to FIGS. 1 to 4.

  FIG. 3 shows a perspective view of the illumination device 10. The lighting device 10 is an outdoor lighting device, for example, a crime prevention light or a street light. In the lighting device 10, a lighting fixture 12 is installed near the upper end of a pole 11 installed on the ground, a solar panel 13 is installed on the upper end of the pole 11, and a battery 14 and a controller 15 are installed on the pole 11. Has been.

  FIG. 4 shows a circuit diagram of the illumination device 10. The controller 15 charges the battery 14 with electric power generated by the solar panel 13 during charging, and discharges the electric power charged in the battery 14 and supplies it to the lighting apparatus 12 when the lighting apparatus 12 is lit. It is configured as follows.

  A lighting fixture 12 is shown in FIGS. The luminaire 12 includes a housing 20, a mounting plate 22 that covers the lower surface of the housing 20 and forms a housing space 21 with the housing 20, and a light source unit 23 that is attached to the lower surface that is one surface of the mounting plate 22. The light-transmitting cover 24 is attached to the lower surface of the housing 20 so as to cover the light source unit 23, and the power supply unit 25 is attached to the upper surface which is the other surface of the mounting plate 22.

  The casing 20 is made of a metal such as aluminum, for example, and the lower surface side is opened, and a mounting portion 28 for mounting to the pole 11 is integrally formed on the base end side which is one end side. Is formed in a shape having a long dimension from the other end side to the opposite end side and a short dimension in the width direction.

  An annular contact portion 29 is formed on the inner side of the lower surface periphery of the housing 20 so that the periphery of the mounting plate 22 contacts and is attached, and an annular groove 30 is formed around the contact portion 29. Has been. An annular packing 31 interposed between the translucent cover 24 and the translucent cover 24 is disposed in the concave groove 30. Further, bosses 32 for screwing the translucent cover 24 are formed at the four corners of the peripheral portion of the lower surface of the housing 20. A plurality of bosses 33 for screwing the mounting plate 22 are integrally formed on the inner peripheral wall surface of the housing 20.

  A wiring hole 35 through which an input wiring 34 for supplying power to the power supply unit 25 is inserted is formed on the base end side of the housing 20. A bushing 36 for closing the wiring hole 35 is fitted into the wiring hole 35 and the bushing 36 is screwed to the housing 20 with a mounting bracket 37.

  The mounting plate 22 is made of a metal such as aluminum, for example, and is formed in a substantially rectangular plate shape that closes the lower surface opening of the housing 20 and can contact the contact portion 29 of the housing 20. The mounting plate 22 is screwed to the plurality of bosses 33 in a state where the peripheral portion of the mounting plate 22 is in contact with the contact portion 29 of the housing 20 and is pressed against the contact portion 29 of the housing 20. The light source unit 23 is attached to the lower surface of the attachment plate 22, and the power supply unit 25 is attached to the upper surface of the attachment plate 22.

  On the upper surface of the mounting plate 22, a plurality of protruding portions 38 are integrally formed so as to protrude from the mounting plate 22. A recess 39 is formed by a protrusion 38 on the lower surface of the mounting plate 22. The protruding portion 38 is formed in a truncated cone shape, and an insertion hole 40 is formed on the tip surface. In the present embodiment, two protrusions 38 are provided side by side in the width direction in the vicinity of the proximal end side and the vicinity of the distal end side of the mounting plate 22. A wiring groove 22 a is formed on the base end side of the mounting plate 22.

  The light source unit 23 includes a light emitting module 43 and a lens module 44.

  In the light emitting module 43, for example, a wiring pattern is formed on a metal substrate (light source substrate) 45 via an insulating layer, and a plurality of light emitting elements 46 and connectors 47 are mounted on the wiring pattern. The light emitting element 46 is, for example, an LED, and an SMD (Surface Mount Device) package in which an LED chip is mounted in the package and sealed with a phosphor layer is used. The light emitting module 43 may be a COB (Chip On Board) module, or may be an EL (Electro Luminescence) element or the like as the light emitting element 46. In the present embodiment, a plurality of light emitting elements 46 are arranged in two rows in the width direction of the substrate 45 and at a predetermined interval in the longitudinal direction.

  The lens module 44 is formed of, for example, a light-transmitting resin material or glass, and includes a flat plate portion 48 and a plurality of lens portions 49 formed corresponding to the positions of the light emitting elements 46. . The lens unit 49 distributes the light from the light emitting element 46 in a predetermined direction.

  Then, in a state where the substrate 45 of the light emitting module 43 is sandwiched between the mounting plate 22 and the lens module 44, the lens module 44 and the light emitting module 43 are screwed to the mounting plate 22, and the substrate 45 of the light emitting module 43 is attached to the mounting plate. It is in close contact with the lower surface of 22.

  The translucent cover 24 is formed of, for example, a translucent resin material or glass, and has an annular pressure contact portion 52 that enters the concave groove 30 of the housing 20 and contacts the packing 31 at the peripheral portion. ing. Then, the four corners of the translucent cover 24 are screwed to the boss 32 of the housing 20, and the pressure contact portion 52 is pressed against the packing 31 between the concave groove 30 of the housing 20.

  Further, the power supply unit 25 converts the DC power supplied from the battery 14 into predetermined DC power for lighting the light emitting element 46, and supplies the converted predetermined DC power to the light emitting module 43. The power supply unit 25 includes a power supply board 55 and a plurality of electrical components 56 mounted on the power supply board 55. The power supply board 55 is a printed wiring board on which a wiring pattern is formed, and an electrical component 56 is mounted on the upper surface of the power supply board 55. A plurality of mounting holes 57 are formed in the power supply board 55. In the present embodiment, attachment holes 57 are formed at the four corners of the power supply substrate 55, respectively.

  The power supply board 55 is attached to the upper surface of the attachment plate 22 by a plurality of attachments 58. The attachment 58 is formed of, for example, an insulating resin material, and is inserted into the attachment hole 57 of the power supply board 55 and is held to the power supply board 55 so as not to be detached, and the protrusion provided on the attachment plate 22 It has a mounting plate holding part 60 that is inserted into the insertion hole 40 of the part 38 and is held by the protruding part 38. At the time of assembly, the board holding portion 59 of the fixture 58 is inserted into the recessed portion 39 of the mounting plate 22 starting from the top, the board holding portion 59 is inserted through the insertion hole 40, and the mounting plate holding section 60 is inserted into the insertion hole 40. The board holding part 59 protruding from the protruding part 38 is inserted into the mounting hole 57 of the power supply board 55 and attached. The power supply board 55 is supported by a plurality of fixtures 58 with a predetermined insulation distance substantially parallel to the upper surface of the mounting plate 22, and further, a predetermined insulation is provided between the electrical component 56 and the housing 20. The distance is secured. Further, the fixture 58 is disposed in the recess 39 and does not protrude from the lower surface of the mounting plate 22.

  The input wiring 34 is connected to the input side of the power supply unit 25 as a connector, and the output wiring (not shown) connected to the output side is connected to the connector 47 of the light emitting module 43 through the wiring groove 22a of the mounting plate 22.

  Next, the operation of this embodiment will be described.

  The controller 15 constantly monitors the power value (for example, voltage value) output from the solar cell panel 13.

  For example, when the power value generated by the solar panel 13 exceeds the predetermined threshold in response to an increase in the amount of sunlight, the controller 15 determines that charging is possible, and the solar panel 13 The battery 14 is charged with the generated power. At this time, if the light emitting module 43 of the luminaire 12 is on, power supply from the battery 14 to the luminaire 12 is stopped.

  On the other hand, if the power value generated by the solar panel 13 falls below a predetermined threshold in response to a decrease in the amount of sunlight, the controller 15 determines that discharge is possible and the battery 14 shifts from daytime to nighttime due to sunset. The electric power stored in is discharged and supplied to the luminaire 12. Direct current power supplied to the lighting fixture 12 is input to the power supply unit 25, converted into predetermined direct current power by the power supply unit 25 and supplied to the light emitting module 43, and the light emitting element 46 of the light emitting module 43 is turned on.

  The lighting fixture 12 has a structure in which the light emitting module 43 and the power supply unit 25 are attached to one mounting plate 22 and the mounting plate 22 is attached to the housing 20. Therefore, the number of parts can be reduced as compared with the case where the light emitting module 43 and the power supply unit 25 are each attached to the housing 20 using individual parts, and the light emitting module 43 and the power supply unit 25 attached to one mounting plate 22 can be reduced. The casing 20 can be downsized while ensuring a predetermined insulation distance between the power supply unit 25 and the casing 20.

  Further, by attaching the light emitting module 43 to the lower surface of the attachment plate 22 and attaching the power supply unit 25 to the upper surface of the attachment plate 22, the light emitting module 43 and the power supply unit 25 attached to one attachment plate 22 can be made compact. it can.

  Further, the mounting plate 22 has a protruding portion 38 that protrudes from the upper surface so that a recess 39 is provided on the lower surface, and the power supply unit 25 is attached to the protruding portion 38. 58 is disposed in the recess 39, there is no protrusion on the lower surface of the mounting plate 22, and the substrate 45 of the light emitting module 43 can be in close contact with the lower surface of the mounting plate 22, and the substrate 45 to the mounting plate 22 The heat conductivity can be secured and the heat dissipation of the light emitting element 46 can be improved.

  Note that a wind turbine generator may be further added to the lighting device 10. The wind turbine generator is installed at the upper end of the pole 11, and the battery 14 is charged with the electric power generated by the wind turbine generator by the wind turbine controller.

  Although several embodiments of the present invention have been described, these embodiments are presented by way of example and are not intended to limit the scope of the invention. These novel embodiments can be implemented in various other forms, and various omissions, replacements, and changes can be made without departing from the scope of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the invention described in the claims and the equivalents thereof.

12 Lighting equipment
20 enclosure
22 Mounting plate
25 Power supply unit
38 Protrusion
39 indentation
43 Light emitting module
46 Light emitting device

Claims (2)

A housing;
A light emitting module having a light emitting element;
A power supply unit for supplying power to the light emitting module;
A mounting plate to which the light emitting module and the power supply unit are mounted and fixed to the housing;
The lighting fixture characterized by comprising. The mounting plate has a protruding portion protruding from the other surface so that a recess is provided on one surface, the light emitting module is mounted on the one surface, and the power supply unit is mounted on the protruding portion protruding from the other surface. The luminaire according to claim 1, wherein

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