WO2020202524A1 - 冷却装置及び屋外灯 - Google Patents
冷却装置及び屋外灯 Download PDFInfo
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- WO2020202524A1 WO2020202524A1 PCT/JP2019/014936 JP2019014936W WO2020202524A1 WO 2020202524 A1 WO2020202524 A1 WO 2020202524A1 JP 2019014936 W JP2019014936 W JP 2019014936W WO 2020202524 A1 WO2020202524 A1 WO 2020202524A1
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- Prior art keywords
- cooling device
- main body
- air
- light source
- source unit
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S8/00—Lighting devices intended for fixed installation
- F21S8/08—Lighting devices intended for fixed installation with a standard
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/502—Cooling arrangements characterised by the adaptation for cooling of specific components
- F21V29/503—Cooling arrangements characterised by the adaptation for cooling of specific components of light sources
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/502—Cooling arrangements characterised by the adaptation for cooling of specific components
- F21V29/508—Cooling arrangements characterised by the adaptation for cooling of specific components of electrical circuits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
- F21V29/74—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks with fins or blades
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
- F21V29/50—Cooling arrangements
- F21V29/70—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks
- F21V29/83—Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks the elements having apertures, ducts or channels, e.g. heat radiation holes
Definitions
- This disclosure relates to cooling devices and outdoor lights.
- the purpose of this disclosure is to efficiently cool a cooling object such as an outdoor light.
- it has a tubular shape, has an air inlet at the bottom, and has an air outlet at the top.
- a cooling device configured to generate an air flow from the air inlet to the air outlet due to the chimney effect when arranged to be thermally connected to a cooling object that is hotter than the outside air.
- the object to be cooled is preferably an outdoor light.
- it is preferably detachably attached to the cooling object.
- the main body in the tubular shape and the main body It includes a heat radiating portion that extends into the internal space of the main body, is thermally connected to the cooling object, and promotes the flow of air.
- the light source unit and A power supply unit electrically connected to the light source unit and A cooling device that is thermally connected to the light source unit and the power supply unit has a tubular shape, has an air inlet at the lower part, and has an air outlet at the upper part.
- the cooling device When at least one of the light source unit and the power supply unit becomes hotter than the outside air, the cooling device generates an air flow from the air inlet to the air outlet by the chimney effect. , Outdoor lights are provided.
- the light source unit and It is thermally connected to the light source unit has a tubular shape, has an air inlet at the lower part, and has a cooling device having an air discharge port at the upper part.
- the cooling device provides an outdoor light that generates an air flow from the air inlet to the air outlet by a chimney effect when the light source unit becomes hotter than the outside air.
- FIG. 1 is a diagram schematically showing an outdoor light 80 (an example of an object to be cooled) to which the cooling device 1 according to the embodiment is applied.
- FIG. 2 is a diagram schematically showing a single item state of the cooling device 1.
- FIG. 3 is an explanatory diagram of a heat conduction mode and a cooling principle between the cooling device 1 and the outdoor light 80 of FIG. 1, and is an outline including a connection portion (contact portion) between the cooling device 1 and the outdoor light 80. It is a typical vertical sectional view.
- FIG. 4A is a schematic cross-sectional view including a connection portion between the cooling device 1 and the outdoor light 80.
- the outdoor light 80 is arranged outdoors.
- the outdoor light 80 may be, for example, a street light installed on a road or the like.
- the outdoor light 80 includes a support column (pole) 81, a light source unit 82, and a power supply unit 83.
- the lower end of the support column 81 is supported by the ground or the like, and extends upward.
- the strut portion 81 may be bent upward in the horizontal direction, or may be branched in a Y shape.
- the light source unit 82 includes an LED (Light Emitting Diode) light source 82a (see FIG. 3). However, in the modified example, the light source unit 82 may include another light source (for example, a halogen lamp, a laser, an organic EL (Electro-Lumisensence), a mercury lamp, or the like).
- the light source unit 82 is provided on the support column 81 so as to irradiate light downward (toward a predetermined area on the ground), for example.
- the light source unit 82 may be attached to the upper part of the support column 81, or may be integrally formed with the support column 81. For example, the light source unit 82 may be mounted on the upper part of the support column 81 in a form that can be exchanged as a module.
- the light source unit 82 may also include a substrate on which the light source is mounted, a base member having heat radiation fins, and the like.
- the power supply unit 83 is electrically connected to the light source unit 82.
- the power supply unit 83 may have, for example, an input voltage of AC100 to 242V.
- the power supply unit 83 functions as a power source for the light source unit 82.
- the power supply unit 83 may be provided, for example, by utilizing the internal space of the columnar portion 81 having a tubular shape, or may be attached to the outside of the columnar portion 81. Further, the power supply unit 83 may be modularized integrally with the light source unit 82.
- the power supply unit 83 generates electric power for lighting the light source unit 82 based on, for example, the electric power supplied from the electric power system. However, in the modified example, the power supply unit 83 may generate electric power by solar thermal power generation. Such a modification is suitable in an area where electricity does not pass.
- the structure and form of the outdoor light to which the cooling device 1 described below can be applied is not limited to the outdoor light 80 as shown in FIG. 1, and the cooling device 1 is also applicable to the outdoor light of any structure and form. It is possible.
- the cooling device 1 is a device for cooling the outdoor light 80, and is thermally connected to the outdoor light 80. As will be described later, the cooling device 1 has a function of cooling the outdoor light 80 by utilizing the chimney effect (the cooling principle will be described later with reference to FIG. 3). For example, the outdoor light 80 may become hot due to heat generation of the light source unit 82 and the power supply unit 83. Further, since the outdoor light 80 is arranged outdoors, there is a risk that the temperature will rise due to the heat of the sun. The cooling device 1 can protect the light source unit 82 and the power supply unit 83 by cooling the outdoor light 80 by utilizing the chimney effect.
- the cooling device 1 is preferably provided so as to come into contact with a portion above the outdoor light 80.
- the cooling device 1 can be arranged in the vicinity of the light source unit 82 without blocking the light from the light source unit 82.
- the cooling device 1 is preferably detachably attached to the outdoor light 80.
- the cooling device 1 is attached to the outdoor light 80 by using an easily removable fixture such as a bolt, a band, a chain, a belt, or the like, unlike the attachment by welding or the like. In this case, the cooling device 1 can be easily removed for maintenance, replacement, or the like.
- the cooling device 1 may be coupled to the outdoor light 80 by welding or the like, or may be integrally formed with the outdoor light 80.
- the cooling device 1 has a tubular shape, and as shown in FIG. 2, has an air introduction port 11 at the lower part and an air discharge port 12 at the upper part.
- the cooling device 1 has a main body 101.
- the main body 101 has a cylindrical shape, and both the upper side and the lower side are open to form an air discharge port 12 and an air introduction port 11, respectively.
- the main body 101 may have a constant diameter along the longitudinal direction, or the diameter may change according to a position along the longitudinal direction.
- the main body 101 may have a tapered shape in which the diameter becomes smaller toward the upper side.
- the cross-sectional shape of the main body 101 is circular as an example, but may be another form such as an ellipse or a rectangle (see FIG. 4B).
- the cooling device 1 When the cooling device 1 is arranged so as to be thermally connected to an object to be cooled (in the case of this embodiment, the outdoor light 80) having a temperature higher than that of the outside air, the air inlet 11 to the air outlet 12 due to the chimney effect. And air flow is configured to occur. That is, when the inside of the main body 101 (corresponding to the “inside of the chimney”) becomes hotter than the outside air, an air flow is generated from the air introduction port 11 to the air discharge port 12. When the outside air flows through the main body 101, air having a temperature higher than that of the outside air is discharged, the main body 101 is cooled, and the outdoor light 80, which is the object to be cooled, is cooled.
- the chimney effect itself is widely known and will not be described in more detail here.
- the heat from the light source unit 82 is transferred to the main body 101 (see the arrow R10 in FIG. 3), and is transferred from the inner peripheral surface of the main body 101 to the air in the main body 101. (See arrow R11 in FIG. 3).
- the heat from the power supply unit 83 is transferred to the main body 101 (see arrow R20 in FIG. 3), and is transferred from the inner peripheral surface of the main body 101 to the air in the main body 101 (see arrow R21 in FIG. 3). ..
- the inside of the main body 101 (corresponding to "inside the chimney") becomes hotter than the outside air, and an updraft is generated in the main body 101 (see arrows R1 to R3 in FIG. 3).
- the heat transferability of the heat from the outdoor light 80 into the main body 101 is also referred to as "heat transferability of the heat from the outdoor light 80 into the main body 101".
- the main body 101 is preferably formed of a material having good heat transferability in order to enhance the heat transfer property of the heat from the outdoor light 80 into the main body 101.
- the main body 101 is made of a metal such as aluminum.
- the main body 101 may be partially or wholly formed of resin or the like as long as the heat transferability of the heat from the outdoor light 80 into the main body 101 is ensured.
- the main body 101 may be formed of resin or the like.
- the main body 101 is preferably in a form along the outdoor light 80 along the longitudinal direction, as shown in FIG. 3, in order to enhance the heat transfer property of the heat from the outdoor light 80 into the main body 101.
- the contact area between the main body 101 and the outdoor light 80 can be efficiently increased, and the heat transfer property of the heat from the outdoor light 80 into the main body 101 can be enhanced.
- the main body 101 may be curved in a curved mode corresponding to the curved mode of the upper portion of the support column 81.
- the main body 101 comes into contact with the outdoor light 80 in the circumferential direction.
- the main body 101A may be in a form along the outdoor light 80 along the circumferential direction.
- the contact area between the main body 101A and the outdoor light 80 can be efficiently increased, and the heat transfer property of the heat from the outdoor light 80 into the main body 101A can be enhanced.
- the main body 101A has a surface shape that follows the surface shape of the upper portion of the outdoor light 80 in the circumferential direction.
- FIG. 4C the main body 101A is brought into contact with the outdoor light 80 via the heat transfer sheet 90.
- the heat from the outdoor light 80 can be transferred to the main body 101A via the heat transfer sheet 90. Further, by providing the heat transfer sheet 90, it becomes difficult for a slight gap or the like between the outdoor light 80 and the main body 101A to occur, and the heat transfer property can be improved.
- the heat transfer sheet 90 may be provided between the main body 101 and the outdoor light 80 shown in FIG. 4A.
- the cooling device 1 is preferably provided in a manner of contacting a portion of the outdoor light 80 where the light source unit 82 and the power supply unit 83 are provided.
- the cooling device 1 may be provided in a manner in which it contacts only one of the portions where the light source unit 82 and the power supply unit 83 are provided in the outdoor light 80, or does not contact any of the portions. It may be provided in an embodiment. Even in the latter case, the heat from the light source unit 82 and the power supply unit 83 is transferred to the air in the main body 101, so that the light source unit 82 and the power supply unit 83 can be cooled.
- the outdoor light 80 can be cooled by utilizing the chimney effect.
- the cooling capacity is insufficient with a normal cooling structure, and the light source unit 82 and the power supply unit 83 may be damaged.
- the outdoor light 80 is susceptible to solar heat and tends to have a high temperature.
- the cooling device 1 of the present embodiment has a simple configuration that can function outdoors, it can be easily applied to the outdoor light 80 and can be applied to the outdoor light 80 installed in a harsh environment. Can function usefully.
- the cooling device 1 of the present embodiment since the structure is as simple as substantially having the tubular main body 101, the productivity is good and the cost effectiveness is very high. It will be expensive.
- the cooling device 1 can be detachably attached to the outdoor light 80, so that the maintainability is good. Further, as described above, the cooling device 1 can operate without requiring electric power. Therefore, it can be used even in areas where electricity is not available. ⁇ Modification example> Next, various modifications will be described.
- FIG. 5 is an explanatory view of the cooling device 2 according to one modification, and is a cross-sectional view taken along the plane including the longitudinal direction of the main body 101B.
- the cooling device 1 according to the above-described embodiment has a configuration in which heat is transferred from the inner peripheral surface of the main body 101 to the air inside the main body 101, whereas the cooling device 2 according to the modified example has the inner circumference of the main body 101B.
- the difference is that not only the surface but also the heat radiating portion 150 in the main body 101B can transfer heat to the air in the main body 101B.
- the cooling device 2 has a heat radiating portion 150 extending in the main body 101B (that is, the internal space of the main body 101B).
- the heat radiating portion 150 is formed of a material having good heat transfer properties such as aluminum.
- the heat radiating portion 150 may extend only partially in the longitudinal direction of the main body 101B, or may extend over the entire longitudinal direction of the main body 101B.
- the heat radiating portion 150 is thermally connected to the outdoor light 80.
- the heat radiating portion 150 may be thermally connected to the outdoor light 80 via the main body 101B, or may be directly thermally connected to the outdoor light 80 without passing through the main body 101B.
- the heat radiating portion 150 may be formed integrally with the main body 101B, or may be formed separately from the main body 101B and supported by the main body 101B.
- one end of the heat radiating portion 150 extends into the main body 101B through a hole 1010 formed in the main body 101B.
- the heat radiating portion 150 is only one, but a plurality of heat radiating portions 150 may be provided.
- the heat radiating portion 150 may be provided at a position corresponding to the light source unit 82 and the power supply unit 83, respectively. Further, in FIG. 5, the heat radiating portion 150 is a rod-shaped member, but may be a plate-shaped member, and the form is arbitrary.
- the other end of the heat radiating portion 150 may be fixed to, for example, the support column 81 of the outdoor light 80.
- the heat radiating portion 150 can also have a function of positioning and supporting the cooling device 2 with respect to the outdoor light 80.
- the heat radiating portion 150 may be projected as a part of the light source unit 82 or the power supply unit 83 so as to be exposed to the outside of the support column 81 through a hole that can be formed in the support column 81.
- the heat radiating portion 150 is thermally connected to the outdoor light 80, the heat from the light source unit 82 and the power supply unit 83 is transferred to the heat radiating portion 150.
- the air in the main body 101B that hits the heat radiating portion 150 can receive heat from the inside of the inner peripheral surface of the main body 101B by the heat radiating portion 150.
- the same effect as that of the above-described embodiment can be obtained. Further, according to this modification, since the heat radiating portion 150 extends inside the main body 101B, heat can be radiated to the air inside the main body 101B from the inside of the inner peripheral surface of the main body 101B as described above. The flow of air from the air inlet 11 to the air outlet 12 can be efficiently promoted. As a result, the light source unit 82 and the power supply unit 83 can be efficiently cooled.
- FIG. 6 is a diagram schematically showing another form of outdoor light 80A to which the cooling device 1 can be applied.
- the cooling device 1 is applied to the outdoor light 80A, but the cooling device 2 described above may be applied instead of the cooling device 1.
- the outdoor light 80A is in an upright shape, unlike the outdoor light 80 in which the upper part is bent. That is, the outdoor light 80A includes a support column 81A in an upright form. A light source unit 82 is provided above the support column 81A. A power supply unit 83 (not shown) is provided inside the support column 81.
- the cooling device 1 can also be applied to the outdoor light 80A having the form shown in FIG. In FIG. 6, the cooling device 1 is attached to the support column 81A of the outdoor light 80A. In this case, the cooling device 1 may be provided in the vicinity of the position where the power supply unit 83 is arranged in the support column 81.
- FIG. 7 is an explanatory diagram of a form of the cooling device 1C.
- the cooling device 1C includes a main body 101C, a leg portion 201, and a lid portion 301.
- the cooling device 1C can be installed with the upper surface of the light source unit 82 (upper surface of the glove) as the installation surface.
- the main body 101C has a cylindrical shape extending with the vertical direction as the central axis, and both the upper side and the lower side are open.
- the cooling device 1C is installed so that the central axis of the main body 101C substantially coincides with the vertical direction (gravity direction).
- the main body 101C may be made of metal, resin, or other material.
- the main body 101C forms a cylindrical space inside.
- the inside of the cooling device 1C shall correspond to the inside of the main body 101C (cylindrical space).
- the leg 201 is connected to the lower part of the main body 101C.
- a plurality of legs 201 are provided.
- a plurality of legs 201 are provided at equal intervals along the circumferential direction of the main body 101C.
- the leg 201 has a function of supporting the main body 101C with respect to the installation surface.
- the lower end of the leg 201 is fixed to the upper part of the light source unit 82.
- the fixing method is arbitrary, and bolts or the like may be used, or the fixing may be non-removable by welding or the like.
- the main body 101C may be further supported with respect to the installation surface by other means such as a wire.
- the cooling device 1C may be integrally formed with the light source unit 82.
- the plurality of legs 201 are provided so as to be separated from each other in the circumferential direction. There is a gap between the legs 201 adjacent to each other in the circumferential direction, and the gap forms the air introduction port 11.
- the leg portion 201 may have a portion (for example, a flange portion) that increases the contact area with respect to the installation surface. Thereby, the support stability with respect to the installation surface can be improved.
- the lid portion 301 is provided on the upper side of the upper part of the main body 101C.
- the lid portion 301 has a function of preventing foreign matter including rain and the like from entering the inside of the cooling device 1C (hereinafter, referred to as "foreign matter intrusion prevention function").
- the lid 301 overlaps at least a part of the upper opening of the main body 101C in a top view, and preferably overlaps the entire upper opening of the main body 101C in order to enhance the foreign matter intrusion prevention function.
- the lid 301 may be omitted.
- the lid portion 301 may be fixed to the upper part of the main body 101C or may be detachably attached.
- the lid portion 301 is attached to the main body 101C in such a manner that a gap is formed between the lid portion 301 and the upper portion of the main body 101C, and the gap forms the air discharge port 12.
- the lid portion 301 may have a hole forming a part of the air discharge port 12.
- FIG. 8 is an explanatory view of the cooling principle inside the cooling device 1C, and is a schematic cross-sectional view passing through the central axis of the main body 101C of the cooling device 1C.
- the air flow is schematically shown by arrows R31-R33.
- the heat radiating portion 150C extends inside the cooling device 1C.
- the heat radiating portion 150C is formed of a material having good heat transfer properties such as aluminum.
- the heat radiating portion 150C extends from the light source unit 82 and is thermally connected to the light source unit 82.
- the heat radiating portion 150C is separate from the cooling device 1C, but in a further modification, the heat radiating portion 150C may be provided integrally with the cooling device 1C or formed integrally with the light source unit 82. May be done.
- the cooling device 1C also makes it possible to efficiently cool the light source unit 82 with a relatively simple configuration by utilizing the chimney effect. That is, as described above, the cooling device 1C has a relatively simple configuration in which the legs 201 are provided on the main body 101C, and can be operated without requiring electric power. Therefore, it can be used even in areas where electricity is not available. Further, by utilizing the chimney effect, the light source unit 82 can be efficiently cooled. Further, by having the leg portion 201, the air introduction port 11 can be easily installed on the upper part of the light source unit 82. As a result, a flow of air having a relatively low temperature along the upper part of the light source unit 82 can be formed, and the upper part of the light source unit 82 can be cooled by such air, so that the cooling efficiency can be improved.
- the main body 101C has a constant inner diameter, but is not limited to this.
- the main body 101C may have a cylindrical shape in which the inner diameter becomes smaller toward the top.
- the main body 101C is not limited to a cylindrical shape, and may have a cylindrical shape having a rectangular or polygonal outer shape when viewed from above.
- the object to be cooled is the outdoor lights 80 and 80A, but the cooling target is not limited to this.
- the object to be cooled may be another object having a light source, or may be another object having a heating element other than the light source.
- the object to be cooled is preferably a fixed object installed outdoors or a moving object that is movable outdoors, but may be an arbitrary object indoors.
- the air introduction port 11 and the air discharge port 12 are completely open, but the present invention is not limited to this.
- the air inlet 11 and the air outlet 12 may be covered with a breathable filter or the like. In this case, it is possible to prevent insects and the like from invading the main body 101 (the same applies to the main bodies 101A and 101B).
- the cooling device 1 (the same applies to the cooling device 2) is a device (structure) that is separate from the outdoor light 80 and can be retrofitted to the outdoor light 80, but is limited to this. I can't.
- it may be manufactured as an outdoor light with a cooling device 1 (the same applies to the cooling device 2).
- the outdoor light 80 may be realized as a configuration including a cooling device 1 (the same applies to the cooling device 2).
- Cooling device 11 Air inlet 12 Air outlet 80 Outdoor light 81 Strut 82 Light source unit 82a LED light source 83 Power supply unit 90 Heat transfer sheet 101 Main body 101A Main body 101B Main body 150 Heat dissipation part 1010 hole
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- Engineering & Computer Science (AREA)
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- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
Description
外気よりも高温な冷却対象物に熱的に接続するように配置した場合に、煙突効果により前記空気導入口から前記空気排出口へと空気の流れが発生するように構成される、冷却装置が提供される。
前記本体の内部空間に延在し、前記冷却対象物と熱的に接続され、前記空気の流れを促進させる放熱部位とを含む。
前記光源ユニットに電気的に接続される電源ユニットと、
前記光源ユニット及び前記電源ユニットに熱的に接続され、筒状の形態であり、下部に空気導入口を有し、かつ、上部に空気排出口を有する冷却装置とを備え、
前記冷却装置は、前記光源ユニット及び前記電源ユニットのうちの少なくともいずれか一方が外気よりも高温になった場合に、煙突効果により前記空気導入口から前記空気排出口へと空気の流れを発生させる、屋外灯が提供される。
前記光源ユニットに熱的に接続され、筒状の形態であり、下部に空気導入口を有し、かつ、上部に空気排出口を有する冷却装置とを備え、
前記冷却装置は、前記光源ユニットが外気よりも高温になった場合に、煙突効果により前記空気導入口から前記空気排出口へと空気の流れを発生させる、屋外灯が提供される。
<変形例>
次に、各種の変形例について説明する。
11 空気導入口
12 空気排出口
80 屋外灯
81 支柱部
82 光源ユニット
82a LED光源
83 電源ユニット
90 伝熱性シート
101 本体
101A 本体
101B 本体
150 放熱部位
1010 穴
Claims (8)
- 筒状の形態であり、下部に空気導入口を有し、かつ、上部に空気排出口を有し、
外気よりも高温な冷却対象物に熱的に接続するように配置した場合に、煙突効果により前記空気導入口から前記空気排出口へと空気の流れが発生するように構成される、冷却装置。 - 前記冷却対象物は、屋外灯である、請求項1に記載の冷却装置。
- 前記屋外灯における光源ユニット及び電源ユニットのうちの少なくともいずれか一方が設けられる部位に接触する態様で設けられる、請求項2に記載の冷却装置。
- 前記冷却対象物の上側の部位に接触する態様で設けられる、請求項1から3のうちのいずれか1項に記載の冷却装置。
- 取り外し可能に前記冷却対象物に取り付けられる、請求項1から4のうちのいずれか1項に記載の冷却装置。
- 前記筒状の形態の本体と、
前記本体の内部空間に延在し、前記冷却対象物と熱的に接続され、前記空気の流れを促進させる放熱部位とを含む、請求項1から5のうちのいずれか1項に記載の冷却装置。 - 光源ユニットと、
前記光源ユニットに電気的に接続される電源ユニットと、
前記光源ユニット及び前記電源ユニットに熱的に接続され、筒状の形態であり、下部に空気導入口を有し、かつ、上部に空気排出口を有する冷却装置とを備え、
前記冷却装置は、前記光源ユニット及び前記電源ユニットのうちの少なくともいずれか一方が外気よりも高温になった場合に、煙突効果により前記空気導入口から前記空気排出口へと空気の流れを発生させる、屋外灯。 - 光源ユニットと、
前記光源ユニットに熱的に接続され、筒状の形態であり、下部に空気導入口を有し、かつ、上部に空気排出口を有する冷却装置とを備え、
前記冷却装置は、前記光源ユニットが外気よりも高温になった場合に、煙突効果により前記空気導入口から前記空気排出口へと空気の流れを発生させる、屋外灯。
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Citations (3)
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JP2006189486A (ja) * | 2004-12-28 | 2006-07-20 | Sharp Corp | リアプロジェクション装置 |
JP2016091640A (ja) * | 2014-10-30 | 2016-05-23 | 株式会社ケイ・シー・エス | Led投光器 |
JP2019023979A (ja) * | 2017-07-24 | 2019-02-14 | スタンレー電気株式会社 | 照明灯具 |
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JP2006189486A (ja) * | 2004-12-28 | 2006-07-20 | Sharp Corp | リアプロジェクション装置 |
JP2016091640A (ja) * | 2014-10-30 | 2016-05-23 | 株式会社ケイ・シー・エス | Led投光器 |
JP2019023979A (ja) * | 2017-07-24 | 2019-02-14 | スタンレー電気株式会社 | 照明灯具 |
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