WO2015122340A1 - Lampe à del et dispositif d'éclairage l'employant - Google Patents

Lampe à del et dispositif d'éclairage l'employant Download PDF

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Publication number
WO2015122340A1
WO2015122340A1 PCT/JP2015/053196 JP2015053196W WO2015122340A1 WO 2015122340 A1 WO2015122340 A1 WO 2015122340A1 JP 2015053196 W JP2015053196 W JP 2015053196W WO 2015122340 A1 WO2015122340 A1 WO 2015122340A1
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WIPO (PCT)
Prior art keywords
led
led lamp
cooling
cooling fan
hole
Prior art date
Application number
PCT/JP2015/053196
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English (en)
Japanese (ja)
Inventor
匠史郎 杉尾
晃三 丸田
Original Assignee
岩崎電気株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP2014027154A external-priority patent/JP5794440B2/ja
Priority claimed from JP2014038253A external-priority patent/JP5910893B2/ja
Application filed by 岩崎電気株式会社 filed Critical 岩崎電気株式会社
Publication of WO2015122340A1 publication Critical patent/WO2015122340A1/fr

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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
    • F21V29/60—Cooling arrangements characterised by the use of a forced flow of gas, e.g. air
    • F21V29/67—Cooling arrangements characterised by the use of a forced flow of gas, e.g. air characterised by the arrangement of fans
    • F21V29/673—Cooling arrangements characterised by the use of a forced flow of gas, e.g. air characterised by the arrangement of fans the fans being used for intake
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/20—Light sources comprising attachment means
    • F21K9/23—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings
    • F21K9/232—Retrofit light sources for lighting devices with a single fitting for each light source, e.g. for substitution of incandescent lamps with bayonet or threaded fittings specially adapted for generating an essentially omnidirectional light distribution, e.g. with a glass bulb

Definitions

  • the present invention relates to a lighting fixture using an LED lamp, and more particularly, to an LED lamp equipped with a cooling fan and a lighting fixture using the same.
  • LED lamps using light emitting diodes are widely used.
  • the LED lamp has an advantage of having a high luminous efficiency as compared with the discharge lamp, but has a disadvantage that the luminous efficiency is lowered when the LED is heated to a high temperature. Therefore, various measures have been taken to prevent the LED from becoming hot. For example, a cooling fan for cooling the LED is provided.
  • Patent Document 1 discloses an LED lamp in which an LED element and a gas flow acceleration fan are provided in a sealed outer sphere.
  • Patent Document 2 describes an LED lighting device provided with an air control unit as means for improving the reliability of a cooling fan.
  • relatively high-temperature air may be supplied to the cooling fan due to the structure around the LED lamp.
  • An object of the present invention is to provide an LED lamp capable of high power and high output and a lighting fixture using the same by preventing the performance of the cooling fan from being lowered and at the same time enhancing the cooling effect of the cooling fan.
  • an LED lamp includes a columnar LED support having a through-hole formed along an axial direction, an LED mounted on a side surface of the LED support, and a first LED support.
  • a cooling fan provided on one end side, a base provided on a second end side of the LED support, and a second end of the LED support formed between the base and the base
  • a cooled air outlet chamber Cooling air from the cooling fan enters the through hole from the first opening of the through hole, exits from the second opening of the through hole, and is guided to the outside through the cooling air outlet chamber. It is configured as follows.
  • a heat dissipation fin may be provided in the through hole of the LED support.
  • the cooling air outlet chamber is provided with an air flow dispersion member that disperses the cooling air exiting from the second opening of the through hole outward in the radial direction. It's okay.
  • the second end portion of the LED support body is a flange portion that guides cooling air from the second opening of the through hole outward in the radial direction. May be provided.
  • a partition member formed of a heat insulating material may be provided between the cooling fan and the first end of the LED support.
  • the cooling fan in the LED lamp, may be supported by a housing, and the housing may be attached to the partition member.
  • a support may be provided between the second end of the LED support and the base, and the cooling air outlet chamber may be formed by the support.
  • the LED lighting fixture is: An LED lamp having an LED, a cooling fan and a base; A reflector that forms a reflective space; A socket provided with a socket to which the base of the LED lamp is mounted, and a socket housing portion for housing the socket; Have The reflecting mirror has a hole for connecting the reflecting space and the socket housing portion; The LED lamp is disposed through the hole of the reflecting mirror so that the LED and the cooling fan are disposed in the reflection space, and the base is disposed in the socket housing portion. The cooling air generated by the cooling fan in the LED lamp flows toward the base, and the air discharged from the LED lamp is guided to the socket housing portion.
  • the socket may function as a heat sink, and air discharged from the LED lamp may be configured to contact the socket.
  • an air passage is formed between the housing and the reflecting mirror, one end of the air passage is connected to the socket housing portion, and the other end of the air passage is provided.
  • the end portion is connected to the reflection space, and a closed loop air circulation path may be constituted by the air passage and the reflection space.
  • the lower surface of the housing has an opening
  • the lower surface of the reflecting mirror has an opening
  • the reflecting mirror is located inside the housing and is more predetermined than the housing. They are arranged at intervals and may be configured to be used as road lights.
  • the reflecting mirror is formed in a parabolic shape, and is arranged so that the center axis of the LED lamp is aligned with the center axis of the reflecting mirror, and is used as a projector. It may be constituted as follows.
  • the LED lamp has a columnar LED support body having a through hole formed along an axial direction,
  • the LED is mounted on a side surface of the LED support,
  • the cooling fan is provided on the first end side of the LED support;
  • the base is provided on the second end side of the LED support,
  • a cooling air outlet chamber formed between the second end of the LED support and the base; Cooling air from the cooling fan enters the through-hole from the first opening of the through-hole, and is guided to the cooling air outlet chamber via the second opening of the through-hole. It is configured to be discharged from the chamber.
  • the cooling air outlet chamber may be provided with an air flow dispersion member that disperses the cooling air that has exited from the second opening of the through hole outward in the radial direction.
  • the end of the LED support may be provided with a flange for guiding the cooling air coming out from the second opening of the through hole in the direction of the base.
  • the LED support may be disposed in the reflection space, and the cooling air outlet chamber may be disposed in the socket housing portion.
  • the present invention it is possible to provide an LED lamp capable of high power and high output, and a lighting fixture using the same, by preventing the performance of the cooling fan from decreasing and at the same time enhancing the cooling effect of the cooling fan.
  • FIG. 1 is a diagram illustrating a configuration example of an LED lamp according to the present embodiment.
  • FIG. 2A is an explanatory diagram illustrating a cooling air flow in the LED lamp according to the present embodiment.
  • FIG. 2B is an explanatory diagram illustrating a cooling air flow in another example of the LED lamp according to the present embodiment.
  • FIG. 2C is an explanatory diagram illustrating a cooling air flow in still another example of the LED lamp according to the present embodiment.
  • FIG. 2D is an explanatory diagram illustrating a cooling air flow in still another example of the LED lamp according to the present embodiment.
  • FIG. 3 is a diagram showing an example of the appearance of a road lamp using the LED lamp according to the present embodiment.
  • FIG. 3 is a diagram showing an example of the appearance of a road lamp using the LED lamp according to the present embodiment.
  • FIG. 4 is a diagram illustrating an example of the appearance of a projector using the LED lamp according to the present embodiment.
  • FIG. 5A is a diagram illustrating an example of a structure of a road light using the LED lamp according to the present embodiment.
  • FIG. 5B is a diagram showing another example of the structure of a road light using the LED lamp according to the present embodiment.
  • FIG. 6A is an explanatory diagram illustrating an example of a structure of a projector using the LED lamp according to the present embodiment.
  • FIG. 6B is an explanatory diagram illustrating another example of the structure of the projector using the LED lamp according to the present embodiment.
  • FIG. 6C is an explanatory diagram illustrating another example of the structure of the projector using the LED lamp according to the present embodiment.
  • FIG. 6A is an explanatory diagram illustrating an example of a structure of a projector using the LED lamp according to the present embodiment.
  • FIG. 6B is an explanatory diagram illustrating another example of the structure of the projector using the
  • FIG. 6D is an explanatory diagram illustrating another example of the structure of the projector using the LED lamp according to the present embodiment.
  • FIG. 6E is an explanatory diagram illustrating another example of the structure of the projector using the LED lamp according to the present embodiment.
  • FIG. 6F is an explanatory diagram illustrating another example of the structure of the projector using the LED lamp according to the present embodiment.
  • the LED lamp 10 includes an LED support 11, a base 13 provided on one side thereof, and a cooling fan 15 provided on the side opposite to the base 13.
  • the cooling fan 15 may be driven by a direct current brushless motor.
  • the center axis of the LED support 11 and the center axis (rotation axis) of the cooling fan 15 are aligned with the center axis of the LED lamp.
  • the LED lamp according to this embodiment is an open type in which no outer sphere is provided.
  • the LED lamp 10 further includes flange plates 19 ⁇ / b> A and 19 ⁇ / b> B provided on both sides of the LED support 11, a support plate 21 disposed at a predetermined interval from the base-side flange plate 19 ⁇ / b> B, and the base 13 and the support plate 21.
  • An insulator 23 mounted between them and a support column 25 provided between the base flange plate 19B and the support plate 21 are provided.
  • a cooling air outlet chamber 26 formed by a space corresponding to the dimension of the support column 25 is formed.
  • the cooling air outlet chamber 26 is directly connected to the external space around the LED lamp 10.
  • the LED support 11 has a columnar shape, and a plurality of LEDs 30 serving as light sources are mounted on the side surfaces thereof.
  • the LED support 11 has a quadrangular prism shape, but may have a polygonal column shape such as a hexagonal column shape.
  • Two LEDs 30 are mounted on each side surface, but three or more LEDs may be mounted.
  • the LED 30 includes a square substrate 30B and a circular LED element 30A mounted thereon.
  • the LED element 30A includes a plurality of LEDs (light emitting diodes). The LED elements are connected in series by lead wires (not shown).
  • the LED support 11 is made of a metal having high thermal conductivity, such as stainless steel or aluminum alloy, and has a heat sink function.
  • a through hole 111 (FIG. 2A) is formed in the LED support 11 along the axial direction.
  • a large number of thin plate-like heat radiation fins 113 (FIG. 2A) are provided on the inner surface of the through hole.
  • the fin 113 extends over the entire length along the axial direction of the through hole.
  • the shape of the fin is not particularly limited.
  • FIG. 2A shows a cross-sectional configuration of the main part of the LED lamp according to the present embodiment, in particular, the LED support 11, the cooling fan 15, and the cooling air outlet chamber 26.
  • the LED support 11 has a through hole 111 in the axial direction, and a large number of heat radiation fins 113 are formed therein.
  • the cross section of the through hole 111 may be circular, but may be square.
  • the central axis of the cooling fan 15 and the central axis of the through hole 111 of the LED support 11 are aligned.
  • a cooling fan 15 is provided in the first opening of the through hole 111, and a cooling air outlet chamber 26 is formed in the second opening on the opposite side.
  • a sealed space is formed between the two openings of the through hole 111.
  • the air cooling system of the LED lamp of this embodiment will be described.
  • a cooling air flow is formed along the axial direction of the cooling fan 15. Arrows indicate the path of the cooling air flow.
  • the cooling air passes through the cooling fan 15 and is guided to the through hole 111 of the LED support 11.
  • the cooling air enters the through-hole 111 from the first opening and exits from the second opening.
  • the cooling air flows from the cooling fan 15 toward the base 13 along the central axis of the LED lamp.
  • the temperature of the cooled air coming out of the second opening is relatively high.
  • the cooled air is discharged to the outside of the LED lamp 10 via the cooling air outlet chamber 26.
  • the cooling air comes into contact with the through holes 111 and the fins 113 of the LED support 11, heat exchange is performed, and the cooling air takes heat away from the LED support 11.
  • the through hole 111 of the LED support 11 has a sealed space except for the openings at both ends, all the cooling air from the cooling fan 15 passes through the through hole 111 of the LED support 11. , Used to cool the LED support 11. Therefore, the LED support 11 can be efficiently cooled. Thus, the LED 30 does not reach a high temperature.
  • the cooling fan 15 is sufficiently separated from the cooling air outlet chamber 26. Accordingly, the relatively hot air discharged from the cooling air outlet chamber 26 does not reach the cooling fan 15 directly. That is, relatively low temperature air can be supplied to the cooling fan 15. Therefore, the cooling effect by the cooling fan can be enhanced. Furthermore, the high temperature of the cooling fan 15 and the motor can be avoided. Accordingly, it is possible to avoid a decrease in performance of the cooling fan due to deterioration of the lubricating oil of the motor of the cooling fan.
  • an air flow dispersion member 27 is provided in the cooling air outlet chamber 26.
  • the air flow dispersion member 27 may be formed in a conical shape.
  • the structure of the LED lamp according to the present embodiment may be the same as the structure of the LED lamp shown in FIG. 2A except for the air flow dispersion member 27.
  • the cooled air that has exited from the second opening of the through hole 111 of the LED support 11 is discharged to the cooling air outlet chamber 26.
  • the cooled air collides with the air flow dispersion member 27, changes the course, and is discharged outside the LED lamp. That is, the cooled air is guided to the base 13 side by the air flow dispersion member 27.
  • the relatively high temperature air discharged from the cooling air outlet chamber 26 does not reach the cooling fan 15 directly. That is, relatively low temperature air can be supplied to the cooling fan 15.
  • a flange 29 is provided at the end of the cooling air outlet chamber 26 on the cooling fan side.
  • the collar portion 29 is attached to the end portion of the LED support 11 on the base side.
  • the structure of the LED lamp according to the present embodiment may be the same as the structure of the LED lamp shown in FIG.
  • the cooled air that has exited from the second opening of the through hole 111 of the LED support 11 is discharged to the cooling air outlet chamber 26.
  • the cooled air collides with the flange 29, changes the course, and is discharged outside the LED lamp. That is, the cooled air is guided to the base 13 side by the flange portion 29.
  • the relatively high temperature air discharged from the cooling air outlet chamber 26 does not reach the cooling fan 15 directly. That is, relatively low temperature air can be supplied to the cooling fan 15.
  • a flange 29 is provided at the end of the cooling air outlet chamber 26 on the cooling fan side, and an air flow dispersion member 27 is provided in the cooling air outlet chamber 26.
  • the structure of the LED lamp according to this embodiment may be the same as the structure of the LED lamp shown in FIG. 2C except for the air flow dispersion member 27.
  • the cooled air that has exited from the second opening of the through hole 111 of the LED support 11 is discharged to the cooling air outlet chamber 26.
  • the cooled air collides with the air flow dispersion member 27 and the collar portion 29A, changes the course, and is discharged outside the LED lamp. That is, the cooled air is guided to the base 13 side by the air flow dispersion member 27 and the flange 29.
  • the relatively high temperature air discharged from the cooling air outlet chamber 26 does not reach the cooling fan 15 directly. That is, relatively low temperature air can be supplied to the cooling fan 15.
  • the LED road light has a housing 51 that surrounds the LED lamp 10 (not shown).
  • a protective glass plate 55 is attached to the lower surface of the casing 51.
  • the internal structure of the housing 51 will be described in detail later.
  • the LED road light is attached to the tip of a pole 57 standing on the ground.
  • the LED projector includes a substantially cylindrical casing 61, an LED lamp 10 supported by the casing 61, and a reflecting mirror 63 surrounding the LED lamp 10.
  • the LED projector is attached to a predetermined structure by an arm 67.
  • the reflecting mirror 63 may be made of aluminum whose inner surface is finished to a mirror surface.
  • the LED road light includes a housing 51, a reflecting mirror 53, and an LED lamp 10.
  • the casing 51 is attached to the tip of a pole 57 standing on the ground.
  • the housing 51 has a socket housing portion 52 in which the socket 50 is mounted.
  • the socket 50 is made of a material having high thermal conductivity, such as a porcelain, and has a heat sink function.
  • the lower surface of the housing 51 has an opening, and a protective glass plate 55 is attached to the opening.
  • a substantially closed space is formed by the casing 51 and the glass plate 55.
  • the reflecting mirror 53 is disposed inside the casing 51 and at a predetermined interval from the casing 51.
  • the reflecting mirror 53 has a substantially box shape or a semi-oval shape with an open bottom. Accordingly, a substantially box-shaped reflection space 54 is formed below the reflecting mirror 53.
  • An air passage 56 and a socket housing portion 52 are formed between the housing 51 and the reflecting mirror 53. One end of the air passage 56 is connected to the socket housing portion 52, and the other end of the air passage 56 is connected to the reflection space 54.
  • the reflecting mirror 53 has a hole 53a.
  • the reflective space 54 and the socket storage portion 52 are connected through the hole 53a.
  • the LED lamp 10 is disposed through the hole 53a of the reflecting mirror 53.
  • the central axis of the LED lamp 10 may be horizontal, but may have a predetermined inclination angle with respect to the horizontal line.
  • the LED lamp 10 includes an LED support 11, a base 13, a cooling fan 15, and a cooling air outlet chamber 26, as shown in FIG. 2C. Further, a flange 29 is attached to the end of the cooling air outlet chamber 26.
  • the cooling fan 15 and the LED support 11 are disposed in the reflection space 54, and the cooling air outlet chamber 26 and the base 13 are disposed in the socket housing portion 52.
  • the flange portion 29 is disposed at the position of the hole 53 a of the reflecting mirror 53.
  • the base 13 of the LED lamp 10 is attached to the socket 50.
  • the cooling air outlet chamber 26 is directly and spatially connected to the socket housing portion 52. Accordingly, the air discharged from the cooling air outlet chamber 26 is discharged to the socket storage portion 52.
  • the air discharged from the cooling air outlet chamber 26 is guided to the socket housing portion 52 by the flange portion 29 changing the route.
  • the flow of air inside the LED road light of this embodiment will be described.
  • a cooling airflow is formed along the axial direction of the fan.
  • the cooling air passes through the through hole 111 (FIG. 2C) of the LED support 11 and is discharged to the outside of the LED lamp 10 through the cooling air outlet chamber 26.
  • the air after cooling discharged from the cooling air outlet chamber 26 has a relatively high temperature.
  • the cooling air outlet chamber 26 is connected to the socket housing portion 52.
  • the air discharged from the cooling air outlet chamber 26 is guided around the socket 50.
  • the socket 50 has a heat sink function. Accordingly, the air after cooling comes into contact with the socket 50 and is deprived of heat by the socket 50 to be cooled.
  • the cooled air further returns from the socket housing 52 to the reflection space 54 via the air passage 56.
  • the cooled air exchanges heat with the surroundings while flowing through the air passage 56 and is further cooled.
  • the air thus cooled returns to the reflection space 54 and is guided to the through hole 111 (FIG. 2C) of the LED support 11 by the cooling fan 15.
  • the cooling fan 15, the through hole 111 (FIG. 2C) of the LED support 11, the cooling air outlet chamber 26, the socket housing 52, the air passage 56 and the reflection space 54 constitute a closed loop air circulation path. Yes.
  • the relatively hot air discharged from the cooling air outlet chamber 26 does not reach the cooling fan 15 directly. That is, relatively low temperature air can be supplied to the cooling fan 15 via the air passage 56. Therefore, the cooling effect by the cooling fan 15 can be enhanced. Furthermore, the high temperature of the cooling fan 15 and the motor can be avoided. Accordingly, it is possible to avoid a decrease in performance of the cooling fan due to deterioration of the lubricating oil of the motor of the cooling fan.
  • the LED lamp 10 has the LED support body 11, the nozzle
  • This embodiment is different from the embodiment shown in FIG. 5B in that the cooling air outlet chamber 26 is not provided with the flange portion 29.
  • the LED lamp 10 is disposed through the hole 53a of the reflecting mirror 53.
  • the cooling fan 15 and the LED support 11 are disposed in the reflection space 54, and the cooling air outlet chamber 26 and the base 13 are disposed in the socket housing portion 52.
  • the boundary between the LED support 11 and the cooling air outlet chamber 26 is disposed at the position of the hole 53 a of the reflecting mirror 53.
  • the base 13 of the LED lamp 10 is attached to the socket 50.
  • the cooling air outlet chamber 26 is directly and spatially connected to the socket housing portion 52. Accordingly, the air discharged from the cooling air outlet chamber 26 is discharged to the socket storage portion 52.
  • the flow of air inside the LED road light of this embodiment is the same as the example of FIG. 5A.
  • the cooling fan 15, the through hole 111 (FIG. 2A) of the LED support 11, the cooling air outlet chamber 26, the socket housing portion 52, and the air passage 56 constitute a closed loop air circulation path.
  • the relatively high temperature air discharged from the cooling air outlet chamber 26 does not reach the cooling fan 15 directly like the LED road light of FIG. 5A. That is, relatively low temperature air can be supplied to the cooling fan 15 via the air passage 56. Therefore, the cooling effect by the cooling fan 15 can be enhanced. Furthermore, the high temperature of the cooling fan 15 and the motor can be avoided. Accordingly, it is possible to avoid a decrease in performance of the cooling fan due to deterioration of the lubricating oil of the motor of the cooling fan.
  • the LED projector includes a housing 61, a reflecting mirror 63, and an LED lamp 10.
  • the housing 61 has a socket housing portion 62 to which a socket 60 is attached.
  • the socket 60 is made of a material having high thermal conductivity, such as a porcelain, and has a heat sink function.
  • the housing 61 has a substantially cylindrical shape having an opening at one end.
  • a reflecting mirror 63 is attached to this opening.
  • the central axis of the casing 61 and the central axis of the reflecting mirror 63 are aligned.
  • a substantially closed space is formed by the casing 61 and the reflecting mirror 63. In the present embodiment, this space becomes the socket housing portion 62.
  • the reflecting mirror 63 may be a rotating paraboloid having a parabolic cross section.
  • the reflecting mirror 63 forms a substantially hemispherical reflecting space 64.
  • a protective glass plate 65 is attached to the end face of the reflecting mirror 63. Therefore, the reflection space 64 is a substantially hemispherical sealed space.
  • the reflecting mirror 63 has a hole 63a.
  • the reflective space 64 and the socket storage portion 62 are connected via the hole 63a.
  • the LED lamp 10 is disposed so as to penetrate the hole 63 a of the reflecting mirror 63.
  • the central axis of the LED lamp 10 and the central axis of the reflecting mirror 63 are aligned.
  • the LED lamp 10 includes an LED support 11, a base 13, a cooling fan 15, and a cooling air outlet chamber 26 as shown in FIG. 2A or 2B.
  • the cooling fan 15 and the LED support 11 are disposed in the reflection space 64, and the cooling air outlet chamber 26 and the base 13 are disposed in the socket housing portion 62.
  • the boundary between the LED support 11 and the cooling air outlet chamber 26 is disposed at the position of the hole 63 a of the reflecting mirror 63.
  • the base 13 of the LED lamp 10 is attached to the socket 60.
  • the cooling air outlet chamber 26 is spatially connected directly to the socket housing portion 62. Accordingly, the air discharged from the cooling air outlet chamber 26 is discharged to the socket housing portion 62.
  • the flow of air inside the LED projector of this embodiment will be described.
  • a cooling airflow is formed along the axial direction of the fan.
  • the cooling air passes through the through hole 111 (FIG. 2A) of the LED support 11 and is discharged to the outside of the LED lamp 10 through the cooling air outlet chamber 26.
  • the air after cooling discharged from the cooling air outlet chamber 26 has a relatively high temperature.
  • the cooling air outlet chamber 26 is connected to the socket housing portion 62.
  • the air discharged from the cooling air outlet chamber 26 is guided around the socket 60.
  • the socket 60 has a heat sink function. Accordingly, the air after cooling comes into contact with the socket 60 and is deprived of heat by the socket 60 to be cooled.
  • the reflection space 64, the cooling fan 15, the through hole 111 (FIG. 2A) of the LED support 11, the cooling air outlet chamber 26, and the socket housing portion 62 constitute an air circulation path.
  • the relatively high temperature air discharged from the cooling air outlet chamber 26 does not reach the cooling fan 15 directly. That is, relatively low temperature air can be supplied to the cooling fan 15. Therefore, the cooling effect by the cooling fan 15 can be enhanced. Furthermore, the high temperature of the cooling fan 15 and the motor can be avoided. Accordingly, it is possible to avoid a decrease in performance of the cooling fan due to deterioration of the lubricating oil of the motor of the cooling fan.
  • the LED lamp 10 has the LED support body 11, the nozzle
  • the LED lamp 10 is disposed through the hole 63a of the reflecting mirror 63.
  • the cooling fan 15 and the LED support 11 are disposed in the reflection space 64, and the cooling air outlet chamber 26 and the base 13 are disposed in the socket housing portion 62.
  • the flange portion 29 is disposed at the position of the hole 63 a of the reflecting mirror 63.
  • the base 13 of the LED lamp 10 is attached to the socket 60.
  • the cooling air outlet chamber 26 is spatially connected directly to the socket housing portion 62. Accordingly, the air discharged from the cooling air outlet chamber 26 is discharged to the socket housing portion 62.
  • the flow of air inside the LED projector of this embodiment will be described.
  • a cooling airflow is formed along the axial direction of the fan.
  • the cooling air passes through the through hole 111 (FIG. 2C) of the LED support 11 and is discharged to the outside of the LED lamp 10 through the cooling air outlet chamber 26.
  • the air after cooling discharged from the cooling air outlet chamber 26 has a relatively high temperature.
  • the cooling air outlet chamber 26 is connected to the socket housing portion 62.
  • the air discharged from the cooling air outlet chamber 26 is guided around the socket 60.
  • the socket 60 has a heat sink function. Accordingly, the air after cooling comes into contact with the socket 60 and is deprived of heat by the socket 60 to be cooled.
  • the external space, the reflection space 64, the cooling fan 15, the through hole 111 (FIG. 2C) of the LED support 11, the cooling air outlet chamber 26, and the socket housing portion 62 constitute an air circulation path. .
  • the relatively high temperature air discharged from the cooling air outlet chamber 26 does not reach the cooling fan 15 directly.
  • relatively low temperature air can be supplied to the cooling fan 15 from the external space. Therefore, the cooling effect by the cooling fan 15 can be enhanced.
  • the high temperature of the cooling fan 15 and the motor can be avoided. Accordingly, it is possible to avoid a decrease in performance of the cooling fan due to deterioration of the lubricating oil of the motor of the cooling fan.
  • the structure of an example of the LED projector according to the present embodiment will be described in detail with reference to FIG. 6C.
  • the LED projector of the present embodiment is different from the example shown in FIG. 6A in that an air hole 61a is provided in the casing 61 and an air hole 63b is provided in the reflecting mirror 63.
  • Other configurations may be the same as the example shown in FIG. 6A.
  • the air cooled by contacting the socket 60 in the socket housing portion 62 is discharged to the outside through the air hole 61 b of the housing 61. Further, relatively low temperature air is introduced into the reflecting space 64 from the external space through the air holes 63 a of the reflecting mirror 63.
  • the external space, the reflective space 64, the cooling fan 15, the through hole 111 (FIG. 2A) of the LED support 11, the cooling air outlet chamber 26, the socket housing portion 62, and the external space constitute an air circulation path. is doing.
  • the relatively high temperature air discharged from the cooling air outlet chamber 26 does not reach the cooling fan 15 directly.
  • relatively low temperature air from the external space can be supplied to the cooling fan 15. Therefore, the cooling effect by the cooling fan 15 can be enhanced.
  • the high temperature of the cooling fan 15 and the motor can be avoided. Accordingly, it is possible to avoid a decrease in performance of the cooling fan due to deterioration of the lubricating oil of the motor of the cooling fan.
  • the structure of an example of the LED projector according to the present embodiment will be described in detail with reference to FIG. 6D.
  • the LED projector according to the present embodiment is different from the example shown in FIG. 6B in that an air hole 61a is provided in the housing 61.
  • the other configuration may be the same as the example shown in FIG. 6B.
  • the air cooled by contacting the socket 60 in the socket housing portion 62 is discharged to the external space through the air hole 61 a of the housing 61. Further, relatively low temperature air is directly introduced into the reflection space 64 from the external space.
  • the external space, the reflective space 64, the cooling fan 15, the through hole 111 (FIG. 2C) of the LED support 11, the cooling air outlet chamber 26, the socket housing portion 62, and the external space constitute an air circulation path. is doing.
  • the relatively high temperature air discharged from the cooling air outlet chamber 26 does not reach the cooling fan 15 directly.
  • relatively low temperature air from the external space can be supplied to the cooling fan 15. Therefore, the cooling effect by the cooling fan 15 can be enhanced.
  • the high temperature of the cooling fan 15 and the motor can be avoided. Accordingly, it is possible to avoid a decrease in performance of the cooling fan due to deterioration of the lubricating oil of the motor of the cooling fan.
  • the LED projector includes a housing 61, a reflecting mirror 63, and an LED lamp 10.
  • the housing 61 has a socket housing portion 62 to which a socket 60 is attached.
  • the socket 60 is made of a material having high thermal conductivity, such as a porcelain, and has a heat sink function.
  • the housing 61 has a substantially cylindrical part 61A having an opening at one end, and a substantially hemispherical hemisphere part 61B connected to the opening.
  • a protective glass plate 65 is attached to the opening of the hemispherical portion 61B.
  • the reflecting mirror 63 is arranged inside the hemispherical part 61B of the casing 61 and at a predetermined interval from the hemispherical part 61B of the casing 61.
  • the central axis of the casing 61 and the central axis of the reflecting mirror 63 are aligned.
  • the reflecting mirror 63 may be a rotating paraboloid having a parabolic cross section.
  • the reflecting mirror 63 forms a substantially hemispherical reflecting space 64.
  • An air passage 66 and a socket housing portion 62 are formed between the housing 61 and the reflecting mirror 63.
  • An air hole 63 b that connects the air passage 66 and the reflection space 64 is provided at the edge of the reflecting mirror 63.
  • One end of the air passage 66 is connected to the socket housing portion 62, and the other end of the air passage 66 is connected to the reflection space 64.
  • the LED lamp 10 includes an LED support 11, a base 13, a cooling fan 15, and a cooling air outlet chamber 26 as shown in FIG. 2A or 2B.
  • the cooling fan 15 and the LED support 11 are disposed in the reflection space 64, and the cooling air outlet chamber 26 and the base 13 are disposed in the socket housing portion 62.
  • the boundary between the LED support 11 and the cooling air outlet chamber 26 is disposed at the position of the hole 63 a of the reflecting mirror 63.
  • the base 13 of the LED lamp 10 is attached to the socket 60.
  • the cooling air outlet chamber 26 is spatially connected directly to the socket housing portion 62. Accordingly, the air discharged from the cooling air outlet chamber 26 is discharged to the socket housing portion 62.
  • the flow of air inside the LED projector of this embodiment will be described.
  • a cooling airflow is formed along the axial direction of the fan.
  • the cooling air passes through the through hole 111 (FIG. 2A) of the LED support 11 and is discharged to the outside of the LED lamp 10 through the cooling air outlet chamber 26.
  • the air after cooling discharged from the cooling air outlet chamber 26 has a relatively high temperature.
  • the cooling air outlet chamber 26 is connected to the socket housing portion 62.
  • the air discharged from the cooling air outlet chamber 26 is guided around the socket 60.
  • the socket 60 has a heat sink function. Accordingly, the air after cooling comes into contact with the socket 60 and is deprived of heat by the socket 60 to be cooled.
  • the cooled air further returns from the socket housing 62 to the reflection space 64 via the air passage 66.
  • the cooled air exchanges heat with the surroundings while flowing through the air passage 66 and is further cooled.
  • the air thus cooled returns to the reflection space 64 and is guided to the through-hole 111 of the LED support 11 by the cooling fan 15.
  • the cooling fan 15, the through hole 111 (FIG. 2A) of the LED support 11, the cooling air outlet chamber 26, the socket housing portion 62, the air passage 66 and the reflection space 64 constitute a closed loop air circulation path. Yes.
  • the relatively high temperature air discharged from the cooling air outlet chamber 26 does not reach the cooling fan 15 directly. That is, relatively low temperature air can be supplied to the cooling fan 15 via the air passage 66. Therefore, the cooling effect by the cooling fan 15 can be enhanced. Furthermore, the high temperature of the cooling fan 15 and the motor can be avoided. Accordingly, it is possible to avoid a decrease in performance of the cooling fan due to deterioration of the lubricating oil of the motor of the cooling fan.
  • the LED lamp 10 has the LED support body 11, the nozzle
  • the LED lamp 10 is disposed through the hole 63a of the reflecting mirror 63.
  • the cooling fan 15 and the LED support 11 are disposed in the reflection space 64, and the cooling air outlet chamber 26 and the base 13 are disposed in the socket housing portion 62.
  • the flange portion 29 is disposed at the position of the hole 63 a of the reflecting mirror 63.
  • the base 13 of the LED lamp 10 is attached to the socket 60.
  • the cooling air outlet chamber 26 is spatially connected directly to the socket housing portion 62. Accordingly, the air discharged from the cooling air outlet chamber 26 is discharged to the socket housing portion 62.
  • the air cooled by contacting the socket 60 in the socket housing portion 62 is discharged to the external space via the air passage 66. Further, relatively low temperature air is directly introduced into the reflection space 64 from the external space.
  • the external space, the reflective space 64, the cooling fan 15, the through hole 111 (FIG. 2C) of the LED support 11, the cooling air outlet chamber 26, the socket housing portion 62, the air passage 66, and the external space are air. It constitutes a circulation path.
  • the relatively high temperature air discharged from the cooling air outlet chamber 26 does not reach the cooling fan 15 directly. That is, relatively low temperature air can be supplied to the cooling fan 15 from the external space. Therefore, the cooling effect by the cooling fan 15 can be enhanced. Furthermore, the high temperature of the cooling fan 15 and the motor can be avoided. Accordingly, it is possible to avoid a decrease in performance of the cooling fan due to deterioration of the lubricating oil of the motor of the cooling fan.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Optics & Photonics (AREA)
  • Arrangement Of Elements, Cooling, Sealing, Or The Like Of Lighting Devices (AREA)
  • Projection Apparatus (AREA)

Abstract

La présente invention se rapporte à un dispositif d'éclairage utilisant une lampe à DEL capable d'offrir une grande puissance et une sortie élevée, en raison du fait qu'il empêche la réduction de la performance du ventilateur et qu'il augmente, simultanément, l'effet de refroidissement du ventilateur. Le dispositif d'éclairage à DEL comprend : une lampe à DEL ayant une DEL, un ventilateur, et un culot ; un miroir réfléchissant formant un espace réfléchissant ; et un boîtier comprenant une douille sur laquelle est fixé le culot de la lampe à DEL et une section de logement de douille logeant ladite douille. Le miroir réfléchissant a un trou reliant l'espace réfléchissant et la section logement de douille. La lampe à DEL est agencée de manière à pénétrer dans le trou du miroir réfléchissant, de sorte que la DEL et la zone du ventilateur sont situées à l'intérieur de l'espace réfléchissant et le culot est disposé dans la section de logement de douille. L'air de refroidissement généré par le ventilateur dans la lampe à DEL s'écoule vers le culot et l'air déchargé à partir de la lampe à DEL est guidé vers la section de logement de douille.
PCT/JP2015/053196 2014-02-17 2015-02-05 Lampe à del et dispositif d'éclairage l'employant WO2015122340A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2014027154A JP5794440B2 (ja) 2014-02-17 2014-02-17 Ｌｅｄランプを用いた照明器具
JP2014-027154 2014-02-17
JP2014038253A JP5910893B2 (ja) 2014-02-28 2014-02-28 Ｌｅｄランプ
JP2014-038253 2014-02-28

Publications (1)

Publication Number Publication Date
WO2015122340A1 true WO2015122340A1 (fr) 2015-08-20

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PCT/JP2015/053196 WO2015122340A1 (fr) 2014-02-17 2015-02-05 Lampe à del et dispositif d'éclairage l'employant

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Country Link
WO (1) WO2015122340A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108518593A (zh) * 2018-04-03 2018-09-11 宁波蒙曼生物科技有限公司 一种节能便捷清理led灯
CN108533973A (zh) * 2018-04-11 2018-09-14 宁波蒙曼生物科技有限公司 一种节能散热led灯装置
CN108548131A (zh) * 2018-04-11 2018-09-18 宁波蒙曼生物科技有限公司 一种新型散热led灯

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3099741U (ja) * 2003-08-07 2004-04-15 ヤマヤ産業株式会社 集魚灯
US20100314985A1 (en) * 2008-01-15 2010-12-16 Philip Premysler Omnidirectional LED Light Bulb
JP2011198612A (ja) * 2010-03-19 2011-10-06 Kyocera Corp 照明装置
JP3171218U (ja) * 2011-08-08 2011-10-20 奇▲こう▼科技股▲ふん▼有限公司 Ｌｅｄ照明器具の放熱構造

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3099741U (ja) * 2003-08-07 2004-04-15 ヤマヤ産業株式会社 集魚灯
US20100314985A1 (en) * 2008-01-15 2010-12-16 Philip Premysler Omnidirectional LED Light Bulb
JP2011198612A (ja) * 2010-03-19 2011-10-06 Kyocera Corp 照明装置
JP3171218U (ja) * 2011-08-08 2011-10-20 奇▲こう▼科技股▲ふん▼有限公司 Ｌｅｄ照明器具の放熱構造

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108518593A (zh) * 2018-04-03 2018-09-11 宁波蒙曼生物科技有限公司 一种节能便捷清理led灯
CN108533973A (zh) * 2018-04-11 2018-09-14 宁波蒙曼生物科技有限公司 一种节能散热led灯装置
CN108548131A (zh) * 2018-04-11 2018-09-18 宁波蒙曼生物科技有限公司 一种新型散热led灯
CN108548131B (zh) * 2018-04-11 2020-04-28 绍兴康赛浦照明电器有限公司 一种散热led灯
CN108533973B (zh) * 2018-04-11 2020-05-12 桐乡市倍特科技有限公司 一种节能散热led灯装置

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