JP2017135066A - Lighting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lighting device which secures a wiring space on a rear surface side of a housing and enables improvement of workability.SOLUTION: A lighting device 10 includes a housing 15, a light source, and a control unit 18. The light source is provided at a front surface side of the housing 15. The control unit 18 collectively houses a sensor 57, a sensor substrate 58, and a power supply substrate 59 in a case 56 and is arranged at a rear surface side of the housing 15. The sensor substrate 58 has a sensor circuit 71 for acquiring a signal detected by the sensor 57. The power supply substrate 59 has a power supply circuit 72 for providing power supply to the light source according to the signal acquired by the sensor circuit 71.SELECTED DRAWING: Figure 1

Description

  Embodiments described herein relate generally to a lighting device including a sensor.

  2. Description of the Related Art Conventionally, for example, in a ceiling-mounted illumination device, a housing includes a light source, for example, a sensor such as a human sensor or an illuminance sensor, a sensor substrate having a sensor circuit that acquires and processes a signal from the sensor, and a sensor circuit. Some are provided with a power supply board having a power supply circuit for controlling the supply of power to the light source in accordance with a signal to be acquired.

  In this case, a light source is provided on the front surface side of the housing, and at least a sensor substrate and a power supply substrate are provided on the rear surface side of the housing, and a power supply line for supplying power to the power supply circuit from outside is wired. A wiring space is provided for this purpose.

  In general, a sensor board and a power supply board are individually provided on the back side of the casing, and the sensor board and the power supply board occupy a region on the back side of the casing, so that the wiring space is likely to be limited.

  When the lighting device is small or thin, a sufficiently wide wiring space cannot be secured, and workability may be impaired.

JP, 2015-76333, A

  The problem to be solved by the present invention is to provide an illuminating device that secures a wiring space on the back side of a housing and can improve workability.

  The lighting device of the embodiment includes a housing, a light source, and a control unit. The light source is provided on the surface side of the housing. The control unit encloses the sensor, the sensor substrate, and the power supply substrate in a case, and is disposed on the back side of the housing. The sensor substrate has a sensor circuit that acquires a signal detected by the sensor. The power supply board has a power supply circuit that supplies power to the light source in accordance with a signal acquired by the sensor circuit.

  According to the present invention, it is possible to secure a wiring space on the back side of the housing and improve workability.

It is the rear view which removed the base body of the illuminating device which shows one Embodiment. It is FIG. 1A-A sectional drawing of an illuminating device same as the above. It is FIG. 1B-B sectional drawing of an illuminating device same as the above. It is the front view which removed the outer cover of the illuminating device same as the above.

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

  The lighting device 10 is a small and thin ceiling-mounted lighting fixture that is directly installed on the ceiling surface 11.

  The lighting device 10 includes a base body 12 installed on the ceiling surface 11, a lamp body 13 attached to the base body 12, and an outer cover 14 attached to the lamp body 13. Further, the lamp body 13 includes a housing 15, a light source 16 disposed on the front surface side of the housing 15, a front cover 17, a control unit 18 disposed on the back surface side of the housing 15, and a terminal block 19. ing.

  The base body 12 is provided in a disk shape, and includes a stat 23 and a packing 24 combined so as to cover the stat 23. Around the stat 23, a plurality of screws 25 for mounting the lamp 13 (housing 15) are fixed. In the center of the base body 12, a wiring hole 26 for passing a power line led from the ceiling surface 11 side is formed. The base body 12 is attached to the ceiling surface 11 with a plurality of screws 27, and the packing 24 is in close contact with the ceiling surface 11 to ensure waterproofness.

  The casing 15 of the lamp body 13 is made of metal and is integrally formed by, for example, aluminum die casting. The housing 15 has a disk-shaped front surface portion 30 and a cylindrical peripheral surface portion 31 provided in the peripheral portion of the front surface portion 30, and the back surface side is opened.

  A circular recess 32 is formed at the center of the front surface of the front surface 30, a light source mounting portion 33 for mounting the light source 16 is formed in the recess 32, and a wiring groove 34 is formed around the light source mounting portion 33. Further, a wiring hole penetrating the front surface portion 30 is provided at a position outside the light source mounting portion 33 in the recess 32, and a packing 35 is attached to the wiring hole. In addition, a circular sensor opening 36 that penetrates the front surface portion 30 is formed in the front surface portion 30 at a position adjacent to the recess 32. Further, a groove portion 37 is continuously provided so as to surround the periphery of the front surface portion 30 and the periphery of the sensor opening 36, and a packing 38 is attached along the groove portion 37.

  A pair of attachment portions 39 for attachment to the base body 12 are provided at symmetrical positions on the circumference of the periphery of the housing 15. The attachment portion 39 is provided such that a part of the peripheral surface portion 31 is recessed inside the housing 15, and the screw 25 protruding from the base body 12 is inserted into the attachment portion 39. Then, the decorative body 40 is screwed to the screw 25 inserted through each mounting portion 39, whereby the lamp body 13 is fastened and fixed to the base body 12, and the lamp body 13 (housing 15) is fixed to the base body 12. The waterproofness is ensured by adhering to the packing 24.

  On the rear surface side of the housing 15, the rear surface side of the light source mounting portion 33 protrudes from the center of the rear surface side of the front surface portion 30, and the control unit 18, the terminal block 19, and wiring are screwed to the peripheral portion of the front surface portion 30 A plurality of bosses 41 for projecting are provided. And on the back side of the housing 15, the control unit 18 is accommodated in a substantially half peripheral area on one side partitioned by an imaginary line connecting the pair of attachment portions 39, and a substantially half peripheral area and a central area on the other side A wiring space 42 is provided.

  Further, the light source 16 of the lamp body 13 is constituted by a light emitting module 44. The light emitting module 44 includes a substrate 45 and a light emitting element 46 provided on the surface of the substrate 45. In the present embodiment, the light emitting element 46 is an SMD (Surface Mount Device) package using a light emitting diode, and a plurality of light emitting elements 46 are mounted on a substrate 45 as shown in FIG. The light emitting module 44 may be a COB (Chip On Board) module in which a plurality of light emitting diodes are mounted on the front side of the substrate 45, and these light emitting diodes are covered with a phosphor layer. An element or the like may be used.

  The light source 16 is attached to the front surface of the light source attachment portion 33 of the housing 15. That is, the substrate 45 of the light emitting module 44 is fastened and fixed to the light source mounting portion 33 of the housing 15 by the plurality of screws 47, and the substrate 45 is thermally connected to the housing 15.

  The front cover 17 of the lamp body 13 includes a light source cover 49 and a sensor cover 50.

  The light source cover 49 covers the entire front side of the housing 15, and is formed in a disc shape from, for example, a milky white resin material having translucency and diffusibility. A circular window hole 51 into which the sensor cover 50 is fitted is formed in the light source cover 49 at a position facing the sensor opening 36 of the housing 15.

  The sensor cover 50 is formed in a cylindrical shape by translucent, for example, a translucent or transparent resin material. The sensor cover 50 is fitted in the window hole 51 of the light source cover 49 and a packing 52 is interposed between the sensor cover 50 and the light source cover 49 to ensure waterproofness.

  The front cover 17 is disposed on the front side of the housing 15 and is fixed to the housing 15 by being screwed into the housing 15 with a plurality of screws 53 inserted through the periphery of the light source cover 49. At the same time, it is in close contact with the packing 38 to ensure waterproofness.

  The control unit 18 of the lamp body 13 includes a case 56, and includes a sensor 57, a sensor substrate 58, and a power supply substrate 59 that are housed in the case 56.

  The case 56 is made of an insulating resin, and is formed in a semi-annular shape so as to be disposed in a peripheral region of approximately half on the back side of the housing 15. The first case 60 and the second case 61 are formed. Are combined. The lower surface side of the first case 60 is opened, and a second case 61 is attached to the first case 60 so as to close the lower surface side of the first case 60. The first case 60 and the second case 60 An accommodation space 62 for accommodating the sensor 57, the sensor substrate 58, and the power supply substrate 59 is formed between the inside of the case 61. Inside the first case 60 and the second case 61, there are a plurality of holding portions 63 for holding the sensor substrate 58 and the power supply substrate 59 between the first case 60 and the second case 61, respectively. Is formed. The first case 60 is provided with attachment portions 65 that are fastened and fixed to the plurality of bosses 41 provided on the back surface side of the housing 15 by screws 64 respectively. At the center of the second case 61, a sensor cylinder 66 that fits into the sensor opening 36 of the housing 15 is projected, and a sensor window 67 is formed inside the sensor cylinder 66.

  The sensor 57 includes a human sensor 68 that detects the presence of a person by receiving infrared rays emitted by a person in a predetermined detection area, and an illuminance sensor 69 that detects brightness. The human sensor 68 and the illuminance sensor 69 are mounted on the lower surface of the sensor substrate 58 facing the sensor window 67 of the case 56, and each detection surface (light receiving surface) faces the sensor cover 50 through the sensor window 67. Infrared light and light can be detected through the sensor cover 50, respectively. The human sensor 68 uses a lens 70 that causes infrared rays from a predetermined detection area to enter the human sensor 68. The sensor 57 is disposed in the center of the case 56. The human sensor 68 is disposed on the side of the light source 16, and the detection surface (light receiving surface) is substantially the same as or above the light emitting surface of the light source 16, and the detection surface (light receiving surface) and the light emitting surface of the light source 16 It is located in the sensor tube 66 of the case 56 that protrudes further downward. The illuminance sensor 69 is located outside the human sensor 68 with respect to the light source 16, and is disposed on the opposite side of the light source 16 with the human sensor 68 at the center.

  The sensor substrate 58 is disposed on one side from the center in the case 56, that is, on one side of the sensor 57 with the sensor 57 as the center. A part of the sensor substrate 58 is opposed to the sensor window 67 of the case 56, and a human sensor 68 and an illuminance sensor 69 are mounted on the facing surface. The sensor substrate 58 is provided with a sensor circuit 71 that acquires and processes signals from the human sensor 68 and the illuminance sensor 69. A plurality of electronic components constituting the sensor circuit 71 are mounted on the sensor substrate 58.

  The power supply board 59 is disposed on the other side of the center in the case 56, that is, on the other side of the sensor 57 with the sensor 57 as the center. The power supply circuit 72 is provided with a power supply circuit 72 that converts AC power into predetermined DC power and supplies it to the light source 16, and converts it into predetermined control power and supplies it to the sensor substrate 58. The power supply circuit 72 supplies power to the light source 16 according to signals that the sensor circuit 71 acquires from the human sensor 68 and the illuminance sensor 69.

  The sensor circuit 71 or the power supply circuit 72 includes a control unit that automatically controls turning on and off of the light source 16 based on detection by the human sensor 68 and the illuminance sensor 69. When the ambient brightness detected by the illuminance sensor 69 is darker than a predetermined threshold, the control unit turns on the light source 16 in accordance with the detection of the human body by the human sensor 68, and is detected by the illuminance sensor 69. When the ambient brightness is brighter than a predetermined threshold value, the light source 16 is automatically controlled to remain off regardless of whether the human sensor 68 detects the human body.

  The outer surface of the case 56 is provided with a sensor knob 73 for adjusting a threshold of ambient brightness for turning on and off, and a sensor knob 74 for setting a mode such as an on / off mode and a dimming / on mode. ing. These sensor knobs 73 and 74 protrude from an operation hole provided in the side surface of the housing 15 and have flexibility such as to cover the operation hole 75 on the side surface of the housing 15 made of, for example, silicone. It is covered with a covering member 76 and can be operated via the covering member 76. The covering member 76 is in close contact with the housing 15 and is waterproof. The cover member 76 on the side surface of the housing 15 is concealed by the outer cover 14 attached to the lamp body 13, and is exposed and operable by removing the outer cover 14 from the lamp body 13.

  Wiring holes are respectively provided at one end and the other end of the case 56 facing the wiring space 42 of the housing 15, and packings 77 and 78 are attached to the respective wiring holes. An input wiring 79 for electrically connecting the power input portion of the power supply board 59 and the terminal block 19 is inserted into the packing 77 at one end, and the light source output portion and the light source 16 of the power supply board 59 are connected to the packing 78 at the other end. An electrically connected output wiring 80 is inserted. The output wiring 80 drawn from the case 56 is inserted into the packing 35 of the housing 15 and disposed in the wiring groove 34 on the front side of the housing 15 and is electrically connected to the substrate 45 of the light emitting module 44. ing. Further, the sensor substrate 58 and the power supply substrate 59 are electrically connected by an electric wire or the like.

  Further, the terminal block 19 of the lamp body 13 is screwed into the wiring space on the back side of the housing 15 and the input wiring 79 is electrically connected. Then, at the time of construction, the power line drawn from the wiring hole 26 of the base body 12 is electrically connected to the terminal block 19.

  The outer cover 14 is a decorative cover, covers the lamp 13 and is detachably attached to the lamp 13. The outer cover 14 has an annular front cover portion 83 that covers the front peripheral portion of the lamp body 13 and a cylindrical side cover portion 84 that covers the side surface of the lamp body 13. The light source cover 49 and the sensor cover 50 are exposed from the central opening of the front cover portion 83. The outer cover 14 is screwed onto the outer peripheral surface of the casing 15 by being attached to the lamp body 13 and rotated, and is detachably attached to the lamp body 13.

  In order to install the lighting device 10 on the ceiling surface 11, first, the base body 12 is installed on the ceiling surface 11, and the power line drawn from the wiring hole 26 of the base body 12 is electrically connected to the terminal block 19 of the lamp body 13. The lamp body 13 is placed on the base body 12 while the power line is housed in the wiring space 42 on the back side of the housing 15, and the lamp body 13 is fastened and fixed to the base body 12 by the decorative nut 40. The cover 14 is attached to the lamp body 13. When the lighting device 10 is installed on the ceiling surface 11, the packing 24 of the base body 12 is in close contact with the ceiling surface 11 and the housing 15, respectively, and the waterproofness of the lamp body 13 is ensured.

  Next, the operation when the lighting device 10 is set to the on / off mode will be described.

  When the ambient brightness detected by the illuminance sensor 69 is brighter than a predetermined threshold, the light source 16 is kept off regardless of whether the human sensor 68 detects the human body.

  Even when the ambient brightness detected by the illuminance sensor 69 is darker than a predetermined threshold, if the human sensor 68 does not detect a human body, the light source 16 is kept off.

  When the ambient brightness detected by the illuminance sensor 69 is darker than a predetermined threshold, when a person enters from the detection area and the human sensor 68 detects a human body, the light source 16 is turned on. Further, when a person leaves the detection area and the human sensor 68 no longer detects a human body, the light source 16 is turned off.

  In the illuminating device 10 of the present embodiment, the sensor 57, the sensor substrate 58, and the power supply substrate 59 are collectively stored in the case 56, so that the control unit 18 that is compactly configured can be configured.

  By arranging this control unit 18 on the back side of the casing 15, a wide wiring space 42 can be secured on the back side of the casing 15, and the power line can be easily connected to the terminal block 19 during construction. In addition, when the lamp body 13 is arranged on the base body 12, the power line can be easily accommodated in the wiring space 42 on the back surface side of the casing 15, so that the power line can be easily handled and workability can be improved.

  In addition, the case 56 houses the sensor board 58 on one side of the sensor 57 and the power supply board 59 on the other side of the sensor 57 with the sensor 57 as the center. Can be efficiently stored in the case 56, and can be compactly assembled.

  In addition, since the sensor 57, the sensor board 58, and the power supply board 59 are housed in the resin case 56 and disposed in the metal casing 15, the insulation of the sensor 57, the sensor board 58, and the power supply board 59 is reliably ensured. be able to.

  The human sensor 68 is disposed on the side of the light source 16, and the detection surface (light receiving surface) is substantially the same as or above the light emitting surface of the light source 16, but the detection surface (light receiving surface) and the light emitting surface of the light source 16 Since it is located in the sensor tube 66 of the case 56 that protrudes further downward, the influence of light from the light source 16 can be reduced.

  Further, the illuminance sensor 69 is located outside the human sensor 68 with respect to the light source 16 and is disposed on the opposite side of the light source 16 with the human sensor 68 as the center. The influence of can be reduced.

  The sensor 57 is not limited to the human sensor 68 and the illuminance sensor 69, and may be another sensor such as a remote control receiver for operating the lighting device 10 by remote control.

  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.

10 Lighting equipment
15 housing
16 Light source
18 Control unit
56 cases
57 sensors
58 Sensor board
59 Power supply board
71 Sensor circuit
72 Power circuit

Claims (2)

A housing;
A light source provided on the front side of the housing;
A sensor, a sensor board having a sensor circuit for acquiring a signal detected by the sensor, a power supply board having a power circuit for supplying power to the light source in accordance with a signal acquired by the sensor circuit, and the sensor and sensor board And a control unit comprising a case that encloses the power supply board in a lump and is disposed on the back side of the housing;
An illumination device comprising: 2. The lighting device according to claim 1, wherein the case includes the sensor board on one side of the sensor and the power board on the other side of the sensor with the sensor as a center.

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