JP2017091973A - Lighting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lighting device having an air conditioning function.SOLUTION: A lighting device 1 includes: a cylindrical body 10 having an opening part 10c in at least one of both ends; a light source 20 provided at an outer side of an outer surface 10e of the cylindrical body 10; and a blower 30 which blows air in the cylindrical body 10 through the opening part 10c.SELECTED DRAWING: Figure 1B

Description

  The present invention relates to a lighting device including a blower.

  Semiconductor light-emitting elements such as light-emitting diodes (LEDs) are expected to serve as light sources for various products because of their small size, high efficiency, and long life. For example, an illumination device (LED illumination) using an LED as a light source has been put into practical use.

  Examples of LED illumination include a bulb-type LED lamp (LED bulb) that replaces a bulb-type fluorescent lamp and an incandescent bulb, or a straight-tube LED lamp that substitutes for a straight-tube fluorescent lamp. For example, Patent Document 1 discloses a conventional bulb-type LED lamp.

JP 2006-313717 A

  In the lighting device, there is a need for an additional function other than the lighting function. For example, an air conditioning function can be considered as an additional function of the lighting device, but it is difficult to simply add an air conditioning function to the lighting device.

  This invention is made | formed in order to solve such a subject, and it aims at providing the illuminating device which has an air-conditioning function.

  One aspect of an illumination device for solving the above-described problem is that a cylindrical body having an opening at at least one of both ends, a light source provided outside the outer surface of the cylindrical body, and air inside the cylindrical body And a blower that sends out through the opening.

  A lighting device having an air conditioning function can be provided.

1 is a plan view of a lighting device according to Embodiment 1. FIG. 2 is a cross-sectional view of a side surface of the lighting apparatus according to Embodiment 1. FIG. FIG. 6 is a plan view of a lighting device according to Embodiment 2. It is sectional drawing of the side surface of the illuminating device which concerns on Embodiment 2. FIG. FIG. 6 is a plan view of a lighting device according to Embodiment 3. 5 is a side sectional view of a lighting apparatus according to Embodiment 3. FIG. It is a figure which shows the usage example of the illuminating device which concerns on Embodiment 3. FIG.

  Hereinafter, lighting devices according to embodiments will be described with reference to the drawings. Note that each of the embodiments described below shows a preferred specific example of the present invention. Therefore, the numerical values, shapes, materials, components, component arrangement positions, connection forms, and the like shown in the following embodiments are merely examples, and are not intended to limit the present invention. Therefore, among the constituent elements in the following embodiments, constituent elements that are not described in the independent claims showing the highest concept of the present invention are described as optional constituent elements.

  Each figure is a schematic diagram and is not necessarily illustrated strictly. Moreover, in each figure, the same code | symbol is attached | subjected to the substantially same structure, The overlapping description is abbreviate | omitted or simplified.

(Embodiment 1)
The lighting device according to the present embodiment is a lighting device including a blower, and is used in a predetermined place where a person enters and exits, such as a washroom, a dressing room, or a toilet.

  As shown in FIG. 1A and FIG. 1B, the illumination device 1 according to the present embodiment includes a cylindrical body 10 having an opening 10c, a light source 20 provided outside the outer surface 10e of the cylindrical body 10, And a blower 30 for sending air inside the cylinder 10 through the opening 10c. Furthermore, the illuminating device 1 drives the casing 10, the light source 20 and the blower 30 that accommodate the cylindrical body 10, the base 41 provided on the casing 40, the cover 45 that covers the light source 20, and the light source 20 and the blower 30. And a drive circuit (not shown). In FIG. 1A and FIG. 1B, the description of the wiring that connects the light source 20 or the blower 30 and the base 41 is omitted. Hereinafter, the detailed structure of the illuminating device 1 is demonstrated.

  The cylindrical body 10 is a cylindrical base material having a side surface portion 10a, a bottom surface portion 10b, and an opening portion 10c. The side surface portion 10a is formed with an inner surface 10d and an outer surface 10e that extend in parallel along a cylinder axis (axis of the cylinder 10) 10f. The opening 10 c is provided on at least one of the both ends of the cylindrical body 10. The illuminating device 1 is configured to send out air inside the cylindrical body 10 through the opening 10 c by wind (airflow) generated by the blower 30. In the present embodiment, the air blowing direction D2 for sending out air is parallel to the cylinder shaft 10f.

  On the outer surface 10 e of the cylindrical body 10, a bowl-shaped support portion 11 for supporting the light source 20 is formed. The support portion 11 protrudes outward from the outer surface 10e in a direction perpendicular to the cylindrical shaft 10f. The cylindrical body 10 is formed of a metal material or a resin material having a high thermal conductivity, including the support portion 11.

  As shown in FIG. 1A, a plurality of light sources 20 are provided around the outer surface 10e. In the present embodiment, eight light sources 20 are attached to the support portion 11 at equiangular intervals. Further, in order to reduce the size of the lighting device 1 in the planar direction, each light source 20 is disposed in the vicinity of the periphery of the outer surface 10 e of the cylindrical body 10.

  The light source 20 includes a semiconductor light emitting element 21 and a mounting substrate 22 on which the semiconductor light emitting element 21 is mounted. The semiconductor light emitting element 21 is fixed to the mounting substrate 22 so as to emit light in a direction perpendicular to the lower surface of the mounting substrate 22.

  These light sources 20 are individually packaged surface mount device (SMD) type LED elements, and enclose the container (package), the LED chip primarily mounted in the container, and the LED chip. And a sealing member. A light emitting element which is an SMD type LED element is secondarily mounted on the mounting substrate 22.

  The container is a resin molded product made of white resin or a white ceramic molded product, and has an inverted frustoconical concave portion (cavity). The LED chip is mounted on the bottom surface of the concave portion of the container. The LED chip is an example of a semiconductor light emitting element that emits light with a predetermined DC power, and is a bare chip that emits monochromatic visible light. The sealing member is a light-transmitting insulating resin material such as silicone resin, and is filled in the concave portion of the container. For example, when the LED chip is a blue LED chip, a phosphor-containing resin in which yellow phosphor particles are dispersed in a silicone resin can be used as the sealing member. As a result, the yellow phosphor particles are excited by the blue light of the blue LED chip to emit yellow light, so that the yellow light from the yellow phosphor particles and the blue light from the blue LED chip are synthesized from the sealing member. White light is emitted as light.

  In addition, although LED was illustrated as the semiconductor light emitting element 21, other solid light emitting elements, such as semiconductor light emitting elements, such as a semiconductor laser, organic EL (Electro Luminescence), or inorganic EL, may be used.

  As the mounting substrate 22, for example, a metal base substrate obtained by applying an insulating film to a base material made of a metal material such as aluminum or copper, a ceramic substrate that is a sintered body of a ceramic material such as alumina, or a resin material A resin substrate made of or the like is used. From the viewpoint of radiating heat generated in the semiconductor light emitting element 21, a metal base substrate having the highest thermal conductivity among these may be used. The mounting substrate 22 is a rigid substrate, but may be a flexible substrate.

  As shown in FIG. 1B, the light source 20 is provided on the support portion 11 so that the optical axis of the light emitted from the semiconductor light emitting element 21 is parallel to the cylinder axis 10f. Specifically, the lower surface of the mounting substrate 22 is brought into contact with and fixed on the support portion 11 so that the emission direction D3 of the emitted light is parallel to the cylinder axis 10f. With this structure, the light emitting direction D3 of the semiconductor light emitting element 21 and the air blowing direction D2 for sending out air are the same direction. In the present embodiment, the emission direction D3 is the light projection direction D1 for projecting light from the illumination device 1.

  The blower 30 is, for example, a circulator, and includes a rotating blade 31 having a plurality of blades and a motor 32 that rotates the rotating blade 31. The motor 32 is attached to the outer surface (surface opposite to the opening 10c) of the bottom surface portion 10b of the cylindrical body 10. The rotary blade 31 is fixed to the shaft of the motor 32 so as to be positioned inside the cylindrical body 10. The central axis of the rotary blade 31 is attached so as to be parallel to the cylinder shaft 10f.

  The blower 30 rotates the rotary blade 31 so that air can be taken into the inside from the outside of the cylinder 10 and the air inside the cylinder 10 can be sent out through the opening 10c. It is configured. In addition, in order to take air into the inside of the cylinder 10, you may form the vent hole 42 in the bottom face part 10b side of the cylinder 10. FIG.

  As the blower 30, a centrifugal pump or a diaphragm pump can be used instead of the circulator described above. In that case, a centrifugal pump or a diaphragm pump is provided outside the cylindrical body 10, an opening is formed in the bottom surface portion 10 b of the cylindrical body 10, and an air flow generated by the centrifugal pump or the diaphragm pump is put into the opening, thereby the cylindrical body 10. The air inside can be sent out.

  The casing 40 is provided on the bottom surface portion 10b side of the cylindrical body 10 so as to accommodate the cylindrical body 10, the light source 20, and the blower 30. The housing 40 includes a housing body 40a and a protruding portion 40b that protrudes from the housing body 40a to the side opposite to the light projecting direction D1. A base 41 for supplying electric power to the light source 20 and the blower 30 via a drive circuit is provided at the end 40c of the protrusion 40b.

  Further, a cover 45 that has translucency and does not have air permeability is provided on the light projecting direction D1 side of the light source 20. The cover 45 has an annular shape in plan view, and is fixed to the housing 40 so as to cover the light source 20 without covering the opening 10 c of the cylindrical body 10. As a material of the cover 45, a light transmissive material made of a glass material such as silica glass transparent to visible light, or a resin material such as acrylic (PMMA) or polycarbonate (PC) can be used. The cover 45 may be subjected to a diffusion process for diffusing light emitted from the light source 20. The opening 10c may be covered with a net-like cover having air permeability.

  The illuminating device 1 according to the present embodiment includes a light source 20 provided on the outside of the cylinder 10 and a blower 30 that sends out air inside the cylinder 10. Thereby, the illuminating device 1 which has an air-conditioning function is implement | achieved. By using this illuminating device 1, it is possible to illuminate a predetermined place and to send air to the place. Moreover, the air in the place can be circulated by sending in air.

  The lighting device 1 has a structure in which the light source 20 is provided on the support portion 11 of the cylindrical body 10 and heat generated by the light source 20 is transmitted to the inside of the cylindrical body 10 via the support portion 11 and the side surface portion 10a. It has become. And it is comprised so that the air inside the cylinder 10 heated with the heat | fever may be sent outside by generating the flow of air inside the cylinder 10 with the air blower 30. FIG. That is, in this lighting device 1, the temperature on the inner surface 10d side of the cylinder 10 is made lower than the temperature on the outer surface 10e side, and the heat generated on the outer surface 10e side is moved to the inner surface 10d side to dissipate heat. Yes. Thereby, the temperature rise of the light source 20 located outside the cylindrical body 10 can be suppressed.

  Moreover, the illuminating device 1 is configured to emit light from the outside of the cylindrical body 10 and to send out air from the inside of the cylindrical body 10. When viewed in plan, the lighting device 1 uses the side surface portion 10 a of the cylindrical body 10 as a boundary. The region for emitting light and the region for sending air are separated. Thereby, it can suppress that the wind produced | generated with the air blower 30 touches the light source 20, and can suppress the electrical contact defect of the light source 20 resulting from dust etc.

  In addition, in this Embodiment, although the opening part 10c was provided in one of the both ends of the cylinder 10, the opening part 10c may be provided in the both ends of the cylinder 10, respectively. . When using the long cylindrical body 10 having openings at both ends, the light source 20 is arranged in the vicinity of one opening 10c (the side for sending air) of the cylindrical body 10, and the blower 30 is placed on the other opening side. What is necessary is just to arrange.

  Moreover, although the example which formed the cylinder 10 and the housing 40 by the different member was shown in this Embodiment, it is also possible to form the cylinder 10 and the housing 40 by an integrated object. In the case of forming a single body, for example, a cylindrical body projecting in a cylindrical shape is provided on one end side of the housing 40, the light source 20 is provided outside the outer surface of the cylindrical body, and the rotating blade 31 is provided inside the cylindrical body. What is necessary is just to comprise so that the air inside a cylinder part may be sent out by providing.

  Further, in the present embodiment, the example in which the support portion 11 of the cylindrical body 10 is formed by projecting to the outside of the cylindrical body 10 is shown, but the support portion 11 is a groove formed on the outer surface 10e side. May be. The light source 20 can be supported by inserting the mounting substrate 22 into the groove.

  In the present embodiment, an example in which the mounting substrate 22 is provided corresponding to each of the semiconductor light emitting elements 21 has been described. However, the mounting substrate 22 is configured by one annular substrate, and a plurality of semiconductor light emitting devices are formed on the substrate. The element 21 may be arranged.

(Embodiment 2)
2A and 2B are diagrams showing an illumination device 1A according to Embodiment 2. FIG. In this illuminating device 1A, the emitted light is emitted in a tilted direction, and the emitted light in the tilted direction is configured to be directed in the light projecting direction D1 using the reflector 51.

  The outer surface 10e of the cylinder 10 of the lighting device 1A is inclined with respect to the cylinder axis 10f. Specifically, the outer peripheral length is gradually increased in the direction from the opening 10c of the cylindrical body 10 toward the bottom surface 10b. That is, the outer surface 10e is formed to be inclined with respect to the light projecting direction D1 and the air blowing direction D2.

  The light source 20 is provided on the inclined outer surface 10e. Specifically, the light source 20 is fixed with the lower surface of the mounting substrate 22 in contact with the outer surface 10e. Thereby, the emitted light is emitted in a direction different from the light projecting direction D1. In the present embodiment, the emission direction D3 of the emitted light is an acute angle with respect to the light projection direction D1.

  An annular reflector 51 is provided outside the light source 20. The reflector 51 is provided so as to reflect the emitted light toward the light projecting direction D1. The reflector 51 is an optical component that reflects light, and examples thereof include a lens, a mirror, and a prism. A plurality of reflectors 51 may be provided so as to correspond to the light sources 20 on a one-to-one basis.

  In the illuminating device 1A according to the present embodiment, the light source 20 is directly provided on the outer surface 10e of the cylindrical body 10, so that the distance between the light source 20 and the inside of the cylindrical body 10 is short. Thereby, the heat generated by the light source 20 can be immediately transmitted to the inside of the cylindrical body 10 via the side surface portion 10a, and can be quickly radiated.

  Further, since the emission direction D3 is an acute angle with respect to the light projection direction D1, the structure of the reflector 51 can be simplified as compared with the case where light is emitted perpendicular to the light projection direction D1. . In addition, since the mounting substrate 22 of the light source 20 is attached while being inclined, the length of the cylindrical body 10 can be shortened and the lighting device 1A can be downsized as compared with the case where the mounting board 22 is not inclined.

  In the present embodiment, an example in which the mounting substrate 22 of the light source 20 is tilted and attached is shown. However, the light source 20 is not tilted and the emission direction D3 is perpendicular to the light projection direction D1. It may be attached. For example, the outer surface 10e of the cylinder 10 is formed parallel to the cylinder axis 10f (the thickness of the side surface portion 10a is uniform), and the lower surface of the mounting substrate 22 is brought into contact with and fixed to the outer surface 10e. The emission direction D3 is perpendicular to the cylinder axis 10f. Then, if the emitted light emitted vertically is inverted using a specific reflector, the emitted light can be directed in the light projecting direction D1. Thereby, the heat generated by the light source 20 can be immediately transferred to the inside of the cylinder 10 and can be quickly radiated.

(Embodiment 3)
3A and 3B are diagrams showing an illumination device 1B according to Embodiment 3. FIG. In the illuminating device 1B, a cooling body 55 is provided inside the cylindrical body 10.

  The cooling body 55 is tubular and is formed in contact with the cylinder body 10 along the inner surface 10 d of the cylinder body 10. The cooling body 55 is supplied with a refrigerant from an external heat exchanger 57 (see FIG. 4) via a pipe 56. The refrigerant supplied to the cooling body 55 absorbs heat inside the cylinder 10 and is carried to the heat exchanger 57. Thereby, the air inside the cylinder 10 is cooled.

  And this illuminating device 1B is comprised so that the cooled air may be sent out with the air blower 30. FIG. Thereby, while illuminating a predetermined place, cold air can be sent to the place. Further, the cooling body 55 can absorb the heat generated by the light source 20 and suppress the temperature rise of the light source 20.

  FIG. 4 is a diagram illustrating a usage example of the lighting device 1B. The lighting device 1B is attached to the construction material so that the light projecting direction D1 and the air blowing direction D2 are on the lower side. The construction material is provided with an instrument body 49 in advance, and the base 41 of the lighting device 1 </ b> B is attached to the socket of the instrument body 49. The illuminating device 1B has the rotating shaft 43 in the protrusion part 40b of the housing 40, and is comprised so that the light projection direction D1 and the ventilation direction D2 can be turned to a desired direction.

(Summary)
The lighting device 1, 1A, or 1B according to the present embodiment includes a cylindrical body 10 having an opening 10c on at least one of both ends, a light source 20 provided on the outer side 10e of the cylindrical body 10, and a cylindrical body And an air blower 30 that sends out the air inside 10 through the opening 10c.

  According to this structure, the illuminating device which has an air-conditioning function can be provided.

  In the lighting device 1, 1A, or 1B, the light projecting direction D1 in which light is projected by the lighting device and the air blowing direction D2 in which air is sent out may be the same direction.

  According to this structure, while illuminating a predetermined place, air can be sent in the same direction as the light projection direction D1. Moreover, the air of a predetermined place can be circulated.

  Further, a support portion 11 that supports the light source 20 is formed on the outer surface 10e of the cylindrical body 10, and the light source 20 includes a semiconductor light emitting element 21, and light emitted from the semiconductor light emitting element 21 is emitted in the light projecting direction D1. It may be provided in the support portion 11 as described above.

  According to this configuration, the heat generated by the light source 20 can be transmitted to the inside of the cylinder body 10 via the support portion 11, and the air inside the cylinder body 10 heated by the heat can be sent out. Thereby, the temperature rise of the light source 20 can be suppressed. Further, since the emission direction D3 of the emitted light is the same as the light projection direction D1, it is possible to suppress the brightness from being reduced.

  The light source 20 includes a semiconductor light emitting element 21, and is provided on the outer surface 10e so that light emitted from the semiconductor light emitting element 21 is emitted in a direction different from the light projecting direction D1, and the illumination device 1A transmits the emitted light. A reflector 51 that reflects in the light projecting direction D1 may be provided.

  According to this configuration, the heat generated by the light source 20 can be directly transmitted from the cylinder 10 to the inside of the cylinder 10, and the air inside the cylinder 10 heated by the heat can be sent out. Thereby, the temperature rise of the light source 20 can be suppressed. Further, even when the light emitted from the semiconductor light emitting element 21 is emitted in a direction different from the light projecting direction D1, by using the reflector 51, the light can be emitted toward the light projecting direction D1.

  Further, the outer surface 10e may be formed to be inclined with respect to the light projecting direction D1.

  According to this configuration, the light source 20 can be attached to be inclined. Thereby, the length of the cylinder 10 can be shortened and the illuminating device 1A can be reduced in size.

  The blower 30 includes a rotating blade 31 having a plurality of blades and a motor 32 that rotates the rotating blade 31, and the rotating blade 31 may be provided inside the cylindrical body 10.

  Thus, by providing the rotary blade 31 inside the cylindrical body 10, the length of the cylindrical body 10 can be shortened, and the lighting device 1, 1A, or 1B can be downsized.

  Further, a casing 40 that houses the cylindrical body 10, the light source 20, and the blower 30, and a base 41 for supplying power to the light source 20 and the blower 30, and the light projecting direction D1 of the casing 40 You may provide with the nozzle | cap | die 41 provided in the edge part 40c on the opposite side.

  According to this configuration, the light source 20 and the blower 30 can be driven by obtaining electric power from the socket of the instrument body provided on the construction material through the base 41. Thereby, it is possible to illuminate a predetermined place and send air to the place by exchanging the lamp without performing a special work for attaching an air conditioner.

  A plurality of light sources 20 may be arranged near the periphery of the outer surface.

  According to this structure, the illuminating device 1, 1A, or 1B can be reduced in size in a planar direction. In addition, the brightness of the lighting device 1, 1A, or 1B can be improved.

  Further, the cover 45 is provided with a light-transmitting and non-air-permeable cover 45. The cover 45 is provided in the light projecting direction D1 of the light source 20 so as to cover the light source 20 without covering the opening 10c. Also good.

  According to this configuration, the light source 20 can be protected by using the cover 45 without blocking the sending of air in the blowing direction D <b> 2 by the cover 45.

  Further, the cylindrical body 10 may be formed with a vent hole 42 for taking air into the cylindrical body 10.

  According to this configuration, fresh air can be taken into the cylinder 10 from the vent hole 42. Thereby, the heat generated by the light source 20 can be easily absorbed.

  Furthermore, a cooling body 55 that cools the air inside the cylinder 10 may be provided inside the cylinder 10.

  According to this configuration, it is possible to illuminate a predetermined place and send air cooled by the cooling body 55. Further, the cooling body 55 can absorb the heat generated by the light source 20 and suppress the temperature rise of the light source 20.

  A plurality of light sources 20 may be provided around the outer surface 10 e, and the cooling body 55 may be in contact with the cylinder 10 along the inner surface 10 d of the cylinder 10.

  According to this configuration, it is possible to improve the brightness of the lighting device 1 </ b> B and to absorb the heat generated by each light source 20.

  The lighting device has been described above based on the embodiment, but the present invention is not limited to the above embodiment. For example, it is realized by arbitrarily combining the components and functions in the embodiments that are obtained by making various modifications conceived by those skilled in the art to the above-described embodiments, and without departing from the spirit of the present invention. Forms are also included in the present invention.

DESCRIPTION OF SYMBOLS 1, 1A, 1B Illuminating device 10 Cylindrical body 10a Side surface part 10b Bottom surface part 10c Opening part 10d Inner side surface 10e Outer side surface 10f Cylindrical shaft 11 Support part 20 Light source 21 Semiconductor light emitting element 22 Mounting board 30 Blower 31 Rotary blade 32 Motor 40 Housing 40a Housing body 40b Projection 40c End 41 Base 42 Vent hole 43 Rotating shaft 45 Cover 49 Instrument body 51 Reflector 55 Cooling body 56 Piping 57 Heat exchanger D1 Light projecting direction D2 Air blowing direction D3 Outgoing direction

Claims (12)

A cylinder having an opening at at least one of both ends;
A light source provided outside the outer surface of the cylindrical body;
A blower that sends out air inside the cylinder through the opening. The lighting device according to claim 1, wherein a light projecting direction in which light is projected by the lighting device and a blowing direction in which the air is sent out are the same direction. A support portion for supporting the light source is formed on the outer surface of the cylindrical body,
The illumination device according to claim 2, wherein the light source includes a semiconductor light emitting element, and is provided in the support portion so that light emitted from the semiconductor light emitting element is emitted in the light projecting direction. The light source includes a semiconductor light emitting element, and is provided on the outer surface so that light emitted from the semiconductor light emitting element is emitted in a direction different from the light projecting direction.
Furthermore, the lighting device includes:
The lighting device according to claim 2, further comprising a reflector that reflects the emitted light in the light projecting direction. The lighting device according to claim 4, wherein the outer surface is formed to be inclined with respect to the light projecting direction. The blower is composed of a rotating blade having a plurality of blades and a motor for rotating the rotating blades,
The lighting device according to any one of claims 1 to 5, wherein the rotary blade is provided inside the cylindrical body. further,
A housing for housing the cylindrical body, the light source and the blower;
The base for supplying electric power to the light source and the blower, comprising: a base provided at an end of the casing opposite to the light projecting direction. The lighting device according to one item. The lighting device according to claim 1, wherein a plurality of the light sources are arranged in the vicinity of the periphery of the outer surface. further,
It has a light-transmitting and non-breathable cover,
The illumination device according to claim 2, wherein the cover is provided in the light projecting direction of the light source so as to cover the light source without covering the opening. The lighting device according to any one of claims 1 to 9, wherein a ventilation hole for taking in air into the cylindrical body is formed in the cylindrical body. further,
The illuminating device according to any one of claims 1 to 10, further comprising: a cooling body that cools air inside the cylindrical body inside the cylindrical body. A plurality of the light sources are provided around the outer surface,
The lighting device according to claim 11, wherein the cooling body is in contact with the cylindrical body along an inner surface of the cylindrical body.

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