JP2011029205A - Lighting system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lighting system for a building effectively radiating heat generated from an LED light source and preventing a temperature in an illuminated space from increasing due to radiated heat. <P>SOLUTION: The lighting system 50 is installed on a baseboard defined by a floor 24 and an inner wall 25 of a room 22 and illuminates the room 22. The lighting system 50 includes the LED light source 11 having a plurality of LED elements, a heat accumulation part 51 accumulating the heat generated from the LED light source 11 and having an opening, a heat radiation part 52 radiating the heat accumulated in the heat accumulation part 51, and a reflection part 53 disposed in the vicinity of the LED light source 11 and reflecting illumination light flux P emitted from the LED light source 11 and radiates the heat from the heat radiation part 52 into an inner wall space 45. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a building lighting device using an LED light source.

  In recent years, a lighting device for buildings using an LED light source has been proposed as an increase in the number of colors and brightness of an LED light source and the convenience as a lighting device can be improved (for example, Patent Document 1). reference).

  8A and 8B are diagrams illustrating a configuration example of an LED light source. FIG. 8A is a plan view, FIG. 8B is a front view, and FIG. 8C is a cross-sectional view.

  As shown in FIG. 8, the LED light source 11 includes a rectangular plate-shaped substrate 12, a reflecting plate 13 provided on one surface of the substrate 12 (an upper surface in FIG. 8C), and an LED element 14. A phosphor 15 and a lens 16.

  The base 12 is formed by stacking rectangular metal plates in multiple layers. Further, a plus electrode 17 and a minus electrode 18 are attached to the substrate 12 by being sandwiched between the multilayer metal plates. In this case, the plus electrode 17 and the minus electrode 18 are not short-circuited. Further, as the main material of the substrate 12, a material that easily releases the heat of the LED element 14, that is, a metal material having a high thermal conductivity, such as aluminum or an aluminum-based alloy, is used.

  Moreover, the reflecting plate 13 has a frame shape and is disposed on the outer peripheral portion of the base 12 and reflects light on the inner surface thereof.

  In addition, the LED element 14 is installed on the inner side of the reflecting plate 13, that is, in the central portion of the base 12. The LED element 14 has a plus electrode 14a and a minus electrode 14b on the lower surface thereof. The plus electrode 14a and the minus electrode 14b are connected to the plus electrode 17 and the minus electrode 18 of the substrate 12, respectively. The LED element 14 is turned on (emits light) when a low-voltage direct current is supplied through the plus electrode 14a and the minus electrode 14b.

  The phosphor 15 is formed so as to cover the LED element 14, and the lens 16 is formed so as to cover the inner surface of the reflecting plate 13 and the phosphor 15.

JP 11-260134 A

  By the way, the LED light source 11 can contribute to power saving with a long life, and has an advantage that the circuit configuration is simple. Heat is generated, the temperature rises, and the luminous efficiency of the LED light source 11 decreases.

  For this reason, when using the LED light source 11 as a light source of the illuminating device for buildings, it is preferable to radiate the heat generated by the LED light source 11.

  However, for example, when illuminating a predetermined living space with the LED light source 11 (illuminating device), if the heat generated by the LED light source 11 is radiated to the living space, the heat is accumulated in the living space, and the temperature of the living space increases. The problem of end up occurs.

  An object of the present invention is to provide an illumination device for a building that can efficiently dissipate heat generated by an LED light source and can prevent the temperature of an illumination space from rising due to the heat dissipation. There is to do.

Such an object is achieved by the present inventions (1) to (11) below.
(1) An illumination device installed in a building, including an LED light source, a heat storage unit that stores heat generated by the LED light source, and a heat dissipation unit that radiates heat stored in the heat storage unit,
The heat dissipating part is located in a different part from the space illuminated by the lighting device, and heat generated by the LED light source is radiated from the heat dissipating part to a different part from the space illuminated by the lighting device. And
The said heat storage part has opening and has air permeability, The illuminating device characterized by the above-mentioned.

  (2) The lighting device according to (1), wherein the air in the room of the building is configured to flow into the enclosure space of the building through the opening.

  (3) The heat radiating portion is installed so as to be exposed in a housing space of the building, and the heat radiating portion is cooled by the air flowing through the housing space. ) Lighting device.

  (4) The illumination device according to any one of (1) to (3), wherein the LED light source is installed on any one of a floor or the vicinity thereof, a wall portion or the vicinity thereof, a ceiling or the vicinity thereof.

  (5) The lighting device according to any one of (1) to (4), wherein the heat dissipating unit is configured to dissipate heat to a housing space of the building.

(6) having a reflector provided in the vicinity of the LED light source;
The lighting device according to any one of (1) to (5), wherein the heat dissipating unit and the reflecting plate are provided on opposite sides of the heat storage unit.

  (7) The lighting device according to (6), wherein the reflection plate is installed so as to be exposed in a housing space of the building.

(8) The heat storage unit has a plate shape and is installed so as to be substantially parallel to a horizontal plane.
The reflecting plate according to the above (6) or (7), wherein the reflecting plate has an L-shaped cross section and is erected downward from the heat storage section.

  (9) The lighting device according to any one of (6) to (8), wherein the reflector, the heat storage unit, and the heat dissipation unit are integrally formed.

  (10) The lighting device according to any one of (1) to (9), wherein the heat storage unit also serves as a support unit that supports the LED light source.

  (11) The lighting device according to any one of (1) to (10), wherein the heat dissipating unit includes a plurality of heat dissipating fins.

  According to the present invention, it is possible to efficiently dissipate heat generated by the LED light source, thereby suppressing (or preventing) a decrease in light emission efficiency due to a temperature rise of the LED light source, thereby efficiently. Can be illuminated.

  Moreover, since the heat generated by the LED light source is radiated to a part different from the space illuminated by the lighting device, it is possible to prevent the temperature of the space illuminated by the lighting device from rising due to the heat radiation.

It is sectional drawing which shows schematic structure of the building provided with the illuminating device which concerns on one Embodiment of this invention. It is a figure which shows 1st Embodiment of the illuminating device of this invention, (A) is sectional drawing, (B) is a perspective view. It is sectional drawing which shows 2nd Embodiment of the illuminating device of this invention. It is sectional drawing which shows 3rd Embodiment of the illuminating device of this invention. It is sectional drawing which shows 4th Embodiment of the illuminating device of this invention. It is sectional drawing which shows 5th Embodiment of the illuminating device of this invention. It is sectional drawing which shows 6th Embodiment of the illuminating device of this invention. It is a figure which shows the structural example of an LED light source, (A) is a top view, (B) is a front view, (C) is sectional drawing.

DESCRIPTION OF EMBODIMENTS Hereinafter, a lighting device of the present invention will be described in detail based on preferred embodiments shown in the accompanying drawings.
FIG. 1 is a cross-sectional view showing a schematic structure of a building in which a lighting device according to an embodiment of the present invention is installed.

  For convenience of explanation, in FIG. 1, the upper side is “upper”, the lower side is “lower”, the left side is “left”, and the right side is “right”. Further, the vertical direction in FIG. 1 is the vertical direction, and the horizontal direction is the horizontal direction.

  As shown in FIG. 1, a house (house) 20 as a building is a two-story wooden house (a wooden building), and includes three living spaces (rooms) 21, 22 and 23, and other illustrations. It has the housing 30 which defines the space which is not. Examples of the living spaces 21 to 23 include various living rooms, bedrooms, kitchens, bathrooms, toilets, entrances, hallways, and the like. In the following description, the living spaces 21 to 23 are referred to as rooms 21 to 23, respectively, so that the living spaces 21 to 23 can be easily imagined.

  The housing 30 is located above the base (base) 31 that defines the planar shape of the house 20, the outer wall (outer wall) 32 that rises so as to surround the outer periphery of the base 31, and the outer wall 32. A roof part (roof) 33 covering the inside of the outer wall part 32 and the outer wall part 32, a floor 24, an inner wall part (inner wall) 25, and a ceiling 26 that define (partition) the chambers 21, 22, and 23, respectively. Yes. Moreover, the heat insulating material 34 is laminated | stacked on the inner surface of the outer wall part 32 and the roof part 33, respectively (it is provided). For example, a decorative panel (for example, a siding board) that covers the whole or a part of the outer wall portion 32 via a predetermined space (gap) may be provided outside the outer wall portion 32.

  A housing space 40 is formed inside the housing 30. The enclosure space 40 is a continuous space (communication space) formed by communicating a hut space 41, an underfloor space 42, a toilet space 43, and inner wall spaces (inner wall cavities) 44, 45, and 46.

  The hut space 41 is a space formed below the roof portion 33, that is, a space formed between the roof portion 33 and the ceiling 26 of the chamber 21 and the ceiling 26 of the chamber 23.

  The underfloor space 42 is a space formed between the base 31 and the floor 24 of the chamber 22 and the floor 24 of the chamber 23.

  The space 43 is a space formed between adjacent upper and lower floors (between the first floor and the second floor in this embodiment), that is, between the floor 24 of the chamber 21 and the ceiling 26 of the chamber 22. It is a space formed along the horizontal direction.

  The inner wall space 44 is a space formed along the vertical direction (vertical direction) between the outer wall portion 32, the left inner wall portion 25 of the chamber 22, and the left inner wall portion 25 of the chamber 22.

  The inner wall space 45 is a space formed along the vertical direction (vertical direction) between the inner wall portion 25 on the right side of the chamber 21 and the inner wall portion 25 on the right side of the chamber 22 and the inner wall portion 25 on the left side of the chamber 23. is there.

  The inner wall space 46 is a space formed along the vertical direction (vertical direction) between the outer wall portion 32 and the inner wall portion 25 on the right side of the chamber 23.

  In addition, in the house 20, a ventilation part (inflow part) 35 for flowing (introducing) air (outside air) into the enclosure space 40 from outside the house 20, and air in the enclosure space 40 to the outside of the house 20. A ventilation part (outflow part) 36 that flows out (discharges) is provided.

  The ventilation portion 36 is formed on the top (center portion) on the right side of the roof portion 33, and has an opening (air outlet) (not shown) that connects the cabin space 41 and the outside, and a shutter (not shown) that opens and closes the opening. It consists of

  The ventilation section 35 is formed in the lower portion of the left outer wall section 32, and includes an unillustrated opening (air inlet) that communicates the underfloor space 42 and the inner wall space 44 with the outside, and an unillustrated opening and closing of the opening. And a shutter.

  In addition, you may provide air supply apparatuses, such as a fan, in either one or both of the ventilation part 35 and the ventilation part 36, for example.

  Each of the shutters has a driving mechanism (not shown) and is driven by the driving mechanism to open and close.

  When each shutter is opened, the air outside the house 20 flows from the ventilation section 35 into the underfloor space 42 and the inner wall space 44 (the housing space 40), and the air flows into the underfloor space 42, the inner wall spaces 44, 45, 46, It flows through the space 43 and the hut space 41 (the housing space 40) toward the ventilation part 36 and flows out of the house 20 from the ventilation part 36. Thereby, while being able to ventilate the housing space 40, the thermal energy in the housing space 40 can be discharge | released, and also the moisture in the housing space 40 can be removed. As a result, an increase in the temperature and humidity in the housing space 40, that is, the house 20, can be suppressed, and the temperature and humidity can be made uniform. Thereby, it can live comfortably in the house 20, and the durability of the house 20 can be improved.

Hereinafter, each embodiment of the illuminating device of this invention is described sequentially.
<First Embodiment>
2A and 2B are diagrams showing a first embodiment of the lighting device of the present invention. FIG. 2A is a cross-sectional view, and FIG. 2B is a perspective view.

  For convenience of explanation, in FIG. 2, the upper side is “upper”, the lower side is “lower”, the left side is “left”, and the right side is “right”. Further, the vertical direction in FIG. 2 is the vertical direction, and the horizontal direction is the horizontal direction.

  As shown in FIG. 2, the lighting device 50 is installed at the baseboard portion formed by the floor 24 and the inner wall portion 25 of the chamber 22, that is, at the end portion of the floor 24 and the lower end portion of the inner wall portion 25. The chamber 22 is illuminated from the opening formed in the lower end portion of 25.

  The illumination device 50 includes an LED light source 11 having a plurality of LED (light emitting diode) elements, a heat storage unit 51 that stores (absorbs) heat generated by the LED light source 11 (particularly, the back side of the LED light source 11), and a heat storage unit. A heat-dissipating part (heat sink) 52 that dissipates the heat stored in 51 and a reflecting part (reflecting plate) that is located in the vicinity of the LED light source 11 and reflects an illumination light beam (light beam) P emitted (emitted) from the LED light source 11 ) 53, and a transparent plate 54 that transmits the illumination light beam P emitted from the LED light source 11 and closes (covers) the opening at the left end portion formed by the reflecting portion 53 and the like.

  In the example of illustration, the heat storage part 51, the thermal radiation part 52, and the reflection part 53 are integrally formed. Thereby, the illuminating device 50 can be manufactured easily.

  Note that only two of the heat storage unit 51, the heat dissipation unit 52, and the reflection unit 53 (for example, the heat dissipation unit 52 and the reflection unit 53) may be integrally formed, or all may be separate members ( It may be formed separately. Further, the reflection part 53 may be separated from the heat storage part 51 and the heat dissipation part 52.

  As the LED light source 11, in the illustrated example, a plurality of LED elements are arranged in a straight line along the depth direction of the paper surface (direction perpendicular to the paper surface) and packaged. The overall shape of the lighting device 50 is long and long in the depth direction of the paper. Moreover, the direction of the optical axis 111 of the LED light source 11 faces downward.

  The LED light source 11 is installed on the outside (right side) of the inner wall portion 25 and in the vicinity of the inner wall portion 25 and the floor 24 via the heat storage portion 51 and the like.

  The LED light source 11 is connected to a power supply unit (not shown) by a lead wire (cable) (not shown). When a current (for example, a low-voltage direct current) is supplied from the power supply unit, driving, that is, lighting (light emission) is performed. )

  Further, the color of the illumination light flux P of the LED light source 11, that is, the emission color of each LED element may be white, and may be various color colors such as red, green, and blue.

  Moreover, the luminescent color in each LED element may be the same, and may differ (a different color may be combined arbitrarily).

  The heat storage unit 51 also serves as a support unit (holding unit) that supports (holds) the LED light source 11, and the LED light source 11 is supported (held) by the heat storage unit 51 on the back surface thereof.

  The heat storage unit 51 has a plate shape that is long in the depth direction of the paper surface, and is installed so as to be substantially parallel to the horizontal plane.

  Moreover, it is preferable that the thickness of the heat storage part 51 is set thicker than the thickness of the thermal radiation part 52 and the reflection part 53 like the example of illustration. Thereby, the heat capacity of the heat storage unit 51 is increased, and the amount of heat that can be stored (heat storage amount) can be increased.

  Moreover, the heat storage part 51 may be solid and may have one or more hollow parts.

  As the constituent material of the heat storage unit 51, it is preferable to use a material having a large specific heat (heat capacity) or thermal conductivity, and for example, aluminum, an aluminum-based alloy, stainless steel, or the like can be used.

  The heat dissipating part 52 is composed of a plurality of (three in the illustrated example) heat dissipating fins erected upward from the heat accumulating part 51. Each radiating fin has a plate shape and is arranged substantially parallel to each other.

  The heat dissipating part 52 is located in the inner wall space 45 (part different from the space illuminated by the lighting device 50), and thereby heat generated in the LED light source 11 and stored in the heat accumulating part 51 (heat absorption), that is, The heat transferred (heat transfer) from the heat storage unit 51 is radiated from the heat radiating unit 52 to the inner wall space 45 (a part different from the space illuminated by the lighting device 50).

  As a constituent material of the heat radiation part 52, for example, aluminum, an aluminum-based alloy, stainless steel, or the like can be used.

  The reflection part 53 has an L-shaped cross-section and is erected downward from the heat storage part 51.

  The inner surface of the reflecting portion 53 (the surface on the side where the LED light source 11 is located) is a reflecting surface, and the reflecting surface can be, for example, a mirror surface, a diffusely reflecting surface on which light is irregularly reflected, or the like.

  In addition, the reflection direction of the illumination light beam P emitted from the LED light source 11 can be freely set by making the shape of the inner surface of the reflecting portion 53, for example, an aspherical surface such as a spherical surface, an elliptical surface, or a parabolic surface. You can also

  As a constituent material of the reflecting portion 53, for example, aluminum, an aluminum alloy, stainless steel, or the like can be used.

  In the lighting device 50, a lamp chamber 55 is defined by the heat storage unit 51, the reflection unit 53, the transparent plate 54, a member (not shown) on the front side of the paper, and a member (not shown) on the back side of the paper.

  Further, by providing the transparent plate 54, the lamp chamber 55 is hermetically sealed. Thereby, ventilation between the chamber 22 and the lamp chamber 55 can be prevented, and intrusion of dust and the like from the chamber 22 into the lamp chamber 55 can be prevented. It can always be in a clean state.

  The transparent plate 54 may be colored and transparent according to the purpose of use in the chamber 22 and various conditions, or may be colorless and transparent. Further, as the transparent plate 54, for example, a single or a plurality of optical components such as a lens and a diffusion plate may be used. Further, the transparent plate 54 may be omitted.

  As a constituent material of the transparent plate 54, for example, various glasses, various resins, and the like can be used.

Next, the operation (operation) of the lighting device 50 will be described.
When the LED light source 11 of the illumination device 50 is turned on (emits light), an illumination light beam P is emitted from the LED light source 11. A part of the illumination light beam P is transmitted through the transparent plate 54 and irradiated into the chamber 22, and another part of the illumination light beam P is reflected by the reflecting portion 53 and is transmitted through the transparent plate 54. 22 is irradiated, thereby illuminating the chamber 22. With this illumination, an aesthetic effect and a healing effect (relaxation effect) can be obtained.

  On the other hand, the heat generated in the LED light source 11 (particularly on the LED light source 11 side) is stored (absorbed) in the heat storage unit 51, transferred (heat transfer) to the heat dissipation unit 52, and radiated from the heat dissipation unit 52 to the inner wall space 45. Is done. At this time, the heat radiating part 52 is cooled by the air flowing through the inner wall space 45 and can radiate heat efficiently.

  As described above, according to the illumination device 50, an aesthetic effect and a healing effect (relaxation effect) can be obtained by the illumination.

  In addition, the heat generated by the LED light source 11 can be efficiently radiated, thereby suppressing (or preventing) a decrease in light emission efficiency due to the temperature rise of the LED light source 11, thereby efficiently illuminating. be able to.

  Moreover, since the heat generated by the LED light source 11 is radiated to the inner wall space 45 which is a part different from the room 22 illuminated by the lighting device 50, the temperature of the room 22 is prevented from rising due to the heat radiation. Can do. Thereby, it is possible to live comfortably in the room 22.

  Note that the transparent plate 54 may be omitted. Although not shown, an opening (through hole) (not shown) is formed at a portion corresponding to the lamp chamber 55 of the heat storage unit 51. Thereby, the air in the chamber 22 flows into the lamp chamber 55 and flows out into the inner wall space 45 through the opening of the heat storage section 51.

Second Embodiment
FIG. 3 is a cross-sectional view showing a second embodiment of the illumination device of the present invention.

  For convenience of explanation, in FIG. 3, the upper side is “upper”, the lower side is “lower”, the left side is “left”, and the right side is “right”. Further, the vertical direction in FIG. 3 is the vertical direction, and the horizontal direction is the horizontal direction.

  Hereinafter, the illuminating device 60 of 2nd Embodiment is demonstrated centering on the difference with 1st Embodiment mentioned above, The description is abbreviate | omitted about the same matter.

  As shown in FIG. 3, the lighting device 60 according to the second embodiment is installed at a ceiling peripheral edge portion formed by the ceiling 26 and the inner wall portion 25 of the chamber 22, that is, at an end portion of the ceiling 26 and an upper end portion of the inner wall portion 25. The chamber 22 is illuminated from an opening formed in the upper end portion of the inner wall portion 25.

  The LED light source 11 is installed on the outside (right side) of the end portion of the ceiling 26 via the heat storage unit 51 and the like, and in the vicinity of the inner wall portion 25 and the ceiling 26.

The heat dissipating part 52 is located in the space 43, so that the heat generated in the LED light source 11 and stored in the heat accumulating part 51, that is, the heat transmitted from the heat accumulating part 51 is distant from the heat dissipating part 52. 43 radiates heat.
According to the illumination device 60, the same effect as that of the first embodiment described above can be obtained.

<Third Embodiment>
FIG. 4 is a cross-sectional view showing a third embodiment of the illumination device of the present invention.

  For convenience of explanation, in FIG. 4, the upper side is “upper”, the lower side is “lower”, the left side is “left”, and the right side is “right”. Also, the vertical direction in FIG. 4 is the vertical direction, and the horizontal direction is the horizontal direction.

  Hereinafter, the illumination device 70 of the third embodiment will be described with a focus on differences from the first embodiment described above, and description of similar matters will be omitted.

  As shown in FIG. 4, the illumination device 70 of the third embodiment is installed in the middle of the height direction (vertical direction) of the inner wall portion 25 of the chamber 22, and from an opening formed in the middle of the inner wall portion 25. Illuminate the chamber 22.

  The LED light source 11 is installed on the outer side (right side) of the inner wall portion 25 in the vicinity of the inner wall portion 25 through the heat storage portion 51 and the like.

The heat dissipating part 52 is located in the inner wall space 45, whereby heat generated in the LED light source 11 and stored in the heat storage part 51, that is, heat transferred from the heat storage part 51 is transferred from the heat dissipating part 52 to the inner wall space. 45 radiates heat.
According to the illumination device 70, the same effect as that of the first embodiment described above can be obtained.

<Fourth embodiment>
FIG. 5 is a cross-sectional view showing a fourth embodiment of the illumination device of the present invention.

  For convenience of explanation, in FIG. 5, the left side is assumed to be “left” and the right side is assumed to be “right”. In addition, a direction perpendicular to the paper surface in FIG. 5 is a vertical direction, and an up-down direction and a left-right direction are horizontal directions.

  Hereinafter, the illumination devices 80a and 80b according to the fourth embodiment will be described with a focus on differences from the first embodiment described above, and description of similar matters will be omitted.

  As shown in FIG. 5, the lighting devices 80a and 80b of the fourth embodiment are installed on the inner wall 25 of the chamber 22 along the height direction (vertical direction) of the inner wall 25, respectively. The chamber 22 is illuminated from an opening formed along the height direction of the portion 25.

  The inner wall portion 25 is bent at two points in the middle thereof, and the right inner wall portion 25 is located on the upper side in FIG. 5 with respect to the left inner wall portion 25. The lighting device 80a is installed on the right inner wall 25, and the lighting device 80b is installed on the right inner wall 25.

  The lighting device 80a has two LED light sources 11. Each LED light source 11 is installed in the inner wall part 25 via the heat storage part 51 grade | etc.,. Each LED light source 11 has its optical axis 111 oriented downward in FIG.

  Moreover, the heat radiating part 52 of the lighting device 80a is located in the inner wall space 201, whereby the heat generated in the LED light source 11 and stored in the heat storage part 51, that is, the heat transmitted from the heat storage part 51 is Heat is radiated from the heat radiating portion 52 to the inner wall space 201.

  Moreover, the reflection part 53 of the illuminating device 80a is standingly arranged toward the downward direction in FIG. 5 from the heat storage part 51, and is comprised by a pair of plate body which mutually opposed.

  In the lighting device 80b, the LED light source 11 is installed on the inner wall portion 25 via the heat storage portion 51 and the like. Moreover, the direction of the optical axis 111 of the LED light source 11 faces downward in FIG.

  Moreover, the heat radiating part 52 of the lighting device 80b is located in the inner wall space 201, and thereby, the heat generated in the LED light source 11 and stored in the heat storage part 51, that is, the heat transmitted from the heat storage part 51 is Heat is radiated from the heat radiating portion 52 to the inner wall space 201.

  Moreover, the reflection part 53 of the illuminating device 80b has a substantially L-shaped cross section, and is erected from the heat storage part 51 downward in FIG. In this case, the lower side of the reflecting portion 53 in FIG. 5 is inclined at a predetermined angle with respect to the inner wall portion 25 (heat storage portion 51). This angle is appropriately set according to the illumination direction. The reflecting portion 53 also has a function of blocking direct light of the illumination light flux P emitted from the LED light source 11.

  The transparent plate 54 of the lighting device 80b is installed so as to be substantially perpendicular to the inner wall portion 25 (heat storage portion 51).

  According to the illumination devices 80a and 80b, the same effects as those of the first embodiment described above can be obtained.

<Fifth Embodiment>
FIG. 6 is a cross-sectional view showing a fifth embodiment of the illumination device of the present invention.

  For convenience of explanation, in FIG. 6, the upper side is “upper”, the lower side is “lower”, the left side is “left”, and the right side is “right”. Moreover, the up-down direction in FIG. 6 is a vertical direction, and the left-right direction is a horizontal direction.

  Hereinafter, the illumination devices 90a and 90b according to the fifth embodiment will be described with a focus on differences from the first embodiment described above, and descriptions of similar matters will be omitted.

  As illustrated in FIG. 6, the illumination devices 90 a and 90 b of the fifth embodiment are respectively installed on the ceiling 26 of the chamber 22, and illuminate the chamber 22 from an opening formed in the ceiling 26.

The LED light source 11 is installed on the ceiling 26 via the heat storage unit 51 and the like.
The heat dissipating part 52 is located in the space 43, so that the heat generated in the LED light source 11 and stored in the heat accumulating part 51, that is, the heat transmitted from the heat accumulating part 51 is distant from the heat dissipating part 52. 43 radiates heat. In this case, the heat dissipating part 52 of the lighting device 90a is composed of a plurality of (two in the illustrated example) heat dissipating fins standing upward from the heat accumulating part 51, and the heat dissipating part 52 of the lighting device 90b is a heat accumulating member. It is composed of one radiating fin that is erected upward from the portion 51.

  The reflection portion 53 is erected downward from the heat storage portion 51 and is composed of a pair of plate bodies facing each other.

  According to the illumination devices 90a and 90b, the same effects as those of the first embodiment described above can be obtained.

<Sixth Embodiment>
FIG. 7: is sectional drawing which shows 6th Embodiment of the illuminating device of this invention.

  For convenience of explanation, in FIG. 7, the upper side is “upper”, the lower side is “lower”, the left side is “left”, and the right side is “right”. Further, the vertical direction in FIG. 7 is the vertical direction, and the horizontal direction is the horizontal direction.

  Hereinafter, the illumination device 100 according to the sixth embodiment will be described with a focus on differences from the first embodiment described above, and description of similar matters will be omitted.

  As illustrated in FIG. 7, the illumination device 100 according to the sixth embodiment is installed on the floor 24 of the chamber 22, and illuminates the chamber 22 from an opening formed in the floor 24.

  The LED light source 11 is installed on the floor 24 via the heat storage unit 51 and the like. Moreover, the direction of the optical axis 111 of the LED light source 11 faces upward.

  The heat dissipating part 52 is located in the underfloor space 42, whereby heat generated in the LED light source 11 and stored in the heat accumulating part 51, that is, heat transferred from the heat accumulating part 51 is transferred from the heat dissipating part 52 to the underfloor space. The heat is radiated to 42. The heat dissipating part 52 is composed of a plurality of (two in the illustrated example) heat dissipating fins erected downward from the heat accumulating part 51.

The reflection part 53 is erected upward from the heat storage part 51, and is composed of a pair of plate bodies facing each other.
According to the illumination device 100, the same effect as that of the first embodiment described above can be obtained.

  As mentioned above, although the illuminating device of this invention was demonstrated based on embodiment of illustration, this invention is not limited to this, The structure of each part is substituted by the thing of the arbitrary structures which have the same function. be able to. In addition, any other component may be added to the present invention. Further, the present invention may be a combination of any two or more configurations (features) of the above embodiments.

  That is, according to the present invention, the heat dissipating part is located in a part different from the space illuminated by the lighting device, and the heat generated by the LED light source is radiated from the heat dissipating part to a part different from the space illuminated by the lighting device. It only has to be configured.

  In this case, examples of the site (position) where the LED light source is installed include a floor or the vicinity thereof, a wall portion (for example, an inner wall portion, an outer wall portion, etc.) or the vicinity thereof, a ceiling or the vicinity thereof.

  Moreover, as a site | part (position) which discharge | releases heat from a heat radiating part (heat radiation), for example, the space inside a building (for example, hut space 41, under floor space 42, toilet space 43, inner wall space (inner wall cavity), etc.) Among the predetermined structural members constituting the building, the ventilation layer of the building, the exterior of the building, and the like.

  Moreover, the site | part (position) illuminated with an illuminating device (LED light source) is not restricted to the inside of a building, but may be outside the building. In this case, a crime prevention effect is obtained by the illumination.

  Moreover, the system of the illuminating device of this invention is not specifically limited, For example, a direct illumination system may be sufficient and an indirect illumination system may be sufficient.

  Moreover, the building provided with the lighting device of the present invention is not limited to two stories, and may be, for example, one story or three stories or more. Further, for example, a basement may be provided.

  Moreover, the building provided with the lighting device of the present invention is not limited to a house, and may be another building such as a building, for example.

  In addition, the lighting device of the present invention can be provided in various forms of buildings. As the form of the building, for example, various wooden buildings, various steel frame buildings and the like can be mentioned.

  As said wooden building, what was built by the panel construction method other than the said embodiment is mentioned, for example.

  Examples of the steel building include a structure using a concrete wall (concrete) and a structure not using the same.

DESCRIPTION OF SYMBOLS 11 LED light source 111 Optical axis 12 Base 13 Reflector 14 LED element 14a Positive electrode 14b Negative electrode 15 Phosphor 16 Lens 17 Positive electrode 18 Negative electrode 20 Housing 21, 22, 23 Room (living space)
24 Floor 25 Inner wall part 26 Ceiling 30 Housing 31 Base 32 Outer wall part 33 Roof part 34 Heat insulating material 35, 36 Ventilation part 40 Interior space 41 Hut space 42 Under floor space 43 Free space 44, 45, 46, 201 Inner wall space (inner wall cavity)
DESCRIPTION OF SYMBOLS 50 Illuminating device 51 Thermal storage part 52 Radiating part 53 Reflecting part 54 Transparent plate 55 Lamp chamber 60, 70, 80a, 80b, 90a, 90b, 100 Illuminating device P Illumination light beam

Claims (11)

An LED light source, a heat storage unit that stores heat generated by the LED light source, and a heat dissipation unit that dissipates heat stored in the heat storage unit, and is an illumination device installed in a building,
The heat dissipating part is located in a different part from the space illuminated by the lighting device, and heat generated by the LED light source is radiated from the heat dissipating part to a different part from the space illuminated by the lighting device. And
The said heat storage part has opening and has air permeability, The illuminating device characterized by the above-mentioned.   The lighting device according to claim 1, wherein the indoor air of the building is configured to flow out into the housing space of the building through the opening.   The lighting device according to claim 1, wherein the heat radiating unit is installed so as to be exposed in a housing space of the building, and the heat radiating unit is cooled by air flowing in the housing space. .   The lighting device according to claim 1, wherein the LED light source is installed on any one of a floor or the vicinity thereof, a wall portion or the vicinity thereof, a ceiling or the vicinity thereof.   The lighting device according to any one of claims 1 to 4, wherein the heat dissipating part is configured to dissipate heat into a space inside the building. A reflector provided in the vicinity of the LED light source;
The lighting device according to claim 1, wherein the heat dissipating part and the reflector are provided on opposite sides of the heat storage part.   The lighting device according to claim 6, wherein the reflection plate is installed so as to be exposed to a space inside the building of the building. The heat storage part has a plate shape and is installed so as to be substantially parallel to a horizontal plane,
The lighting device according to claim 6 or 7, wherein the reflecting plate has an L-shaped cross-section and is erected downward from the heat storage unit.   The lighting device according to claim 6, wherein the reflector, the heat storage unit, and the heat dissipation unit are integrally formed.   The lighting device according to claim 1, wherein the heat storage unit also serves as a support unit that supports the LED light source.   The lighting device according to claim 1, wherein the heat radiating portion has a plurality of heat radiating fins.

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